JP6672028B2 - Centering device - Google Patents

Description

  The present invention relates to a centering device.

  Patent Document 1 discloses a conventional centering device. The centering device includes a pair of supports, a gantry, and a moving unit. The pair of support members has a V-shape at the upper end of the opposing end faces, each is disposed on a gantry, one is fixed to the gantry, and the other is movably connected. The gantry has a flat shape and extends in the horizontal direction. The moving means has a column member and a handle. The handle is connected to the other support via a column member. In this centering device, by turning the handle, the other support moves in the approaching / separating direction with respect to the one support. Thus, the vertical position of the work can be changed. For this reason, this centering device can center the work even if the work has a different outer diameter.

JP 2005-313248 A

  However, the centering device disclosed in Patent Document 1 changes the gap between the pair of supports by rotating the handle of the moving means, so that the center of the work moves in the direction in which the supports move, and Go to In other words, this centering device moves the center of the work in two directions, that is, the direction in which the support moves and the vertical direction. Is difficult.

  The present invention has been made in view of the above-described conventional circumstances, and provides a centering device that can easily center a work in accordance with the outer diameter of each of a plurality of types of works having different outer diameters. It is an issue to be solved.

The centering device of the present invention includes an operation member, a support member, and a guide member. The operation member reciprocates in the left-right direction. The support member supports the work from below, and reciprocates up and down with the reciprocation of the operation member in the left and right directions. The guide member guides the movement of the support member in the vertical direction. The operation member and the support member are provided on one of them, an inserted part provided with a first inserted part extending in the inclined direction, and an insertion part provided on the other side and moved by being inserted into the inserted part. Have. The inserted portion includes a plurality of second inserted portions that are parallel to each other, have different vertical positions, and extend in the horizontal direction, and ends of adjacent second inserted portions are connected via the first inserted portion. .

This centering device can change the vertical position of the support member by moving the operation member in the left-right direction. For this reason, the centering device can center the work by moving the support member in the vertical direction in accordance with the outer diameter of each of a plurality of types of works having different outer diameters. This centering device can easily cope with a change in the outer diameter of the workpiece to be centered by changing the outer shape of the inserted portion. The centering device can change the position of the support member in the up-down direction by moving the operation member in the left-right direction. In other words, this centering device can facilitate centering according to the outer diameter of each of a plurality of types of works having different outer diameters. With this centering device, when the insertion portion is located at the second insertion portion, it is possible to prevent the support member from inadvertently moving downward due to the weight of the work or the like.

  Therefore, the centering device of the present invention can easily center the work.

  One of the guide member and the support member, the operation member and the support member, or the guide member and the operation member of the present invention may be provided with a convex portion and the other with a concave portion. The recess fits into the projection when the insertion portion is inserted into the second inserted portion. In this case, in the centering device, since the convex portion and the concave portion are fitted with each other, it is possible to prevent the insertion portion from being inadvertently displaced from the second inserted portion.

  The support member of the present invention may have a pair of first support portions that contact the left and right sides of the lower half of the work and move in the left-right direction as the support member reciprocates in the vertical direction. In this case, the centering device can disperse the weight of the work applied to the support member by supporting the outer peripheral surface of the work with the pair of first support portions. Further, since the centering device has the first support portion provided on the support member, the material of the first support portion can be changed according to the material of the work.

In the centering device of Embodiment 1, (A) shows a front view, and (B) shows a side view. It is a schematic diagram which shows the centering apparatus of Embodiment 1, (A) shows the state in which the operating member is located on the left side, and the supporting member is located on the lower side, (B) is the state where the operating member is located on the right side. And a state in which the support member is located on the upper side. In the centering device of Embodiment 2, (A) shows a front view, and (B) shows a side view. It is a schematic diagram which shows the centering apparatus of Embodiment 2, (A) is an operation member located in the left side, a support member is located in a lower side, a 1st cam pin is located in a lower side, and a pair of 2nd (B) shows a state in which the operating member is located on the right side, the supporting member is located on the upper side, the first cam pin is located on the upper side, and a pair of second cam pins are located on the left and right inner side. It shows the state where it was done. It is a principal part enlarged view which shows the state where the 1st long hole of the support member of the centering apparatus of Embodiment 2 and the 3rd long hole of the 2nd guide member overlap, (A) is a support member located in a lower side. FIG. 4B shows a state in which the pair of second cam pins are located on the left and right outer sides of the second elongated hole, and FIG. 2B shows a state in which the support member is located on the upper side and the pair of second cam pins are located on the left and right inner sides of the second elongated hole. Indicates the status.

  Embodiments 1 and 2 that embody the centering device of the present invention will be described with reference to the drawings.

<First embodiment>
The centering device of the first embodiment includes a support member 10, an operation member 11, and a guide member 12, as shown in FIGS. 1A and 1B and FIGS. 2A and 2B. . The support member 10 is flat and has a width in the left-right direction (the left-right is the right-hand side in FIG. 1A; the same applies hereinafter) and the up-down direction (the upper-lower is the upper lower side in FIG. 1A. The same). The support member 10 is provided with a notch 10A that is cut out in a V-shape that is wide in the upward direction at the left and right central portions of the upper end surface. The support member 10 can support the workpieces W1 and W2 by contacting the notch 10A from below on the outer peripheral surfaces of the cylindrical or columnar workpieces W1 and W2 having the central axis arranged in the horizontal direction. The support member 10 has a dimension in the left-right direction smaller on the lower side than on the upper side. The support member 10 is provided with a flat mounting hole 10C penetrating in the thickness direction immediately below the notch 10A at the center in the left and right direction. The support member 10 is fixed by inserting a cam pin 10B as an insertion portion into the mounting hole 10C. More specifically, the cam pin 10B has a columnar shape, a rear end portion of the columnar shape is inserted into the mounting hole 10C, and a front end portion of the columnar shape is the front side of the support member 10 (the front and rear sides are front and rear in FIG. 1A). Side, the same applies hereinafter). In addition, the rear end portion of the cam pin 10B does not protrude rearward from the rear end surface of the support member 10.

  The operation member 11 has an inserted portion 11A and receiving holes 11B and 11F which are concave portions. The operation member 11 is flat, has a width in the up-down direction, and extends in the left-right direction. The size of the operation member 11 in the vertical direction is larger at the left and right middle portions than at the left and right end portions, and the left and right middle portions protrude downward. The inserted portion 11A includes a first inserted portion 11E and second inserted portions 11C and 11D. The inserted part 11 </ b> A is formed at the left and right middle part of the operation member 11.

  The opposing two sides of the first inserted portion 11E are parallel. The left side of the first inserted portion 11E is located above the right side. That is, the operation member 11 is provided with the inserted portion 11A including the first inserted portion 11E that extends obliquely.

  The opposing two sides of the second inserted portions 11C and 11D are parallel. The second inserted portions 11C and 11D have the same dimensions between two opposing sides. The dimensions between the two opposing sides of the second inserted parts 11C and 11D are the same as the dimensions between the two opposing sides of the first inserted part 11E. The vertical positions of the second inserted portions 11C and 11D are lower in the second inserted portion 11D than in the second inserted portion 11C. The second inserted portion 11C is continuously connected to the left end of the first inserted portion 11E, and the second inserted portion 11D is continuously connected to the right end of the first inserted portion 11E. That is, the inserted portion 11A includes two second inserted portions 11C and 11D which are parallel to each other, have different vertical positions, and extend in the horizontal direction, and the ends of the adjacent second inserted portions 11C and 11D are the first. It is connected via the inserted part 11E.

  The receiving holes 11B and 11F are provided to penetrate the left side of the inserted portion 11A in the thickness direction of the flat plate. The receiving holes 11B and 11F are chamfered at the front edge of the inner peripheral surface. The receiving holes 11B and 11F have the same vertical position and are provided adjacent to each other in the horizontal direction. The dimension between the central axes of the receiving holes 11B and 11F is the same as the dimension in the left-right direction between the left and right centers of the second inserted parts 11C and 11D. The operating member 11 is arranged such that the inserted portion 11A is inserted into the cam pin 10B of the support member 10 and the rear end surface is in contact with the front end surface of the support member 10. At this time, the front end of the cam pin 10B does not protrude forward from the front end surface of the support member 10 (not shown). The dimension between two opposing sides of the first inserted part 11E and the dimension between two opposing sides of the second inserted parts 11C and 11D are slightly larger than the outer diameter of the cam pin 10B. For this reason, the cam pin 10B can reciprocate in the left-right direction of the inserted portion 11A. That is, the support member 10 is provided with the cam pin 10B which is inserted into the inserted portion 11A and moves.

  The guide member 12 has a pair of first guide member 12A, second guide member 12B, and third guide member 12C. The first guide member 12A is a rectangular parallelepiped that is long in the vertical direction. The size of the first guide member 12A in the front-rear direction is slightly larger than the sum of the thicknesses of the support member 10 and the operation member 11 in the form of a flat plate. The first guide member 12A is provided with a notch groove portion 12D which is cut out in the left-right direction from the left end surface to the right end surface below the upper and lower central portions of the front end surface. The vertical dimension of the notch groove 12D is slightly larger than the vertical dimension of the left and right ends of the operating member 11. In addition, the size of the notch groove portion 12D in the front-rear direction is slightly larger than the thickness of the operation member 11 in the shape of a flat plate. The first guide member 12A has a bolt insertion hole 12E penetrating in the front-rear direction at each of an upper end portion and a lower end portion. The pair of first guide members 12 </ b> A sandwich the upper left and right end surfaces of the support member 10 from the left and right directions, and are each disposed with a slight gap between the upper left and right end surfaces of the support member 10. At this time, these first guide members 12A have the same vertical position. Each of the first guide members 12A has a notch groove 12D disposed on the front side, and the left and right ends of the operating member 11 are fitted into the respective notch grooves 12D.

  The second guide member 12B has a flat shape, has a width in the up-down direction, and extends in the left-right direction. The vertical dimension of the second guide member 12B is substantially the same as the vertical dimension of the first guide member 12A. The second guide member 12B has a trapezoidal shape in which the left and right middle portions of the upper end surface are wide in the upward direction. The second guide member 12B has a flat plate-shaped bolt insertion hole 12F penetrating in the thickness direction at the upper end and the lower end of each of the left and right ends. The vertical dimension between the central axes of the bolt insertion holes 12F provided at the upper and lower ends of the second guide member 12B is the same as the bolt insertion holes 12E provided at the upper and lower ends of the first guide member 12A. Are the same as those in the vertical direction between the central axes. The second guide member 12B is provided with a screw hole 12G having an internal thread formed on the inner peripheral surface below the upper and lower central portions at the left end. The screw holes 12G are used when mounting a ball plunger 12H which is a convex portion described later. The second guide member 12B is disposed with its rear end face in contact with the front end face of the first guide member 12A. The second guide member 12B has a pair of first guides in which the central axes of the bolt insertion holes 12F provided at the upper end and the lower end of the left and right end portions are respectively disposed on the left and right end surfaces on the upper side of the support member 10. The central axis coincides with the center axis of the bolt insertion hole 12E provided in the member 12A. Further, the left and right ends of the operation member 11 are sandwiched between the first guide member 12A and the second guide member 12B from the front-rear direction. The vertical dimension of the middle part of the operation member 11 in the left-right direction is larger than the vertical dimension of the notch groove 12D of the first guide member 12A. For this reason, the operation member 11 does not fall off from the guide member 12.

  The third guide member 12C has a flat plate shape, has a width in the up-down direction, and extends in the left-right direction. The vertical dimension of the third guide member 12C is substantially the same as the vertical dimension of the first guide member 12A. The third guide member 12C has a trapezoidal shape in which the left and right intermediate portions of the upper end surface are wide in the upward direction. The third guide member 12C is provided with a female screw thread formed on the inner peripheral surface at the upper end and lower end of each of the left and right ends, and a flat plate-shaped screw hole 12J penetrating in the thickness direction. The third guide member 12C is arranged with its front end face in contact with the rear end face of the first guide member 12A. At this time, in the third guide member 12C, the central axes of the screw holes 12J provided at the upper and lower ends of the left and right ends are respectively provided at the upper and lower ends of the left and right ends of the second guide member 12B. And the center axis of the bolt insertion hole 12F. The third guide member 12C has a pair of first guides in which the center axes of the screw holes 12J provided at the upper end and the lower end of the left and right end portions are respectively disposed on the left and right end surfaces on the upper side of the support member 10. The central axis coincides with the center axis of the bolt insertion hole 12E provided in the member 12A.

  The guide member 12 has a first guide member 12A, a second guide member 12B, and a first guide member 12A connected to each other by four bolts 12K. More specifically, the guide member 12 has bolts 12K inserted into the bolt insertion holes 12F provided at the upper and lower ends of the left and right ends of the second guide member 12B from the front side. Furthermore, these bolts 12K also pass through bolt insertion holes 12E provided in a pair of first guide members 12A disposed on the left and right end surfaces on the upper side of the support member 10, and the upper ends of the left and right end portions of the third guide member 12C. It is screwed into the screw hole 12J provided in the lower portion and the lower portion.

  The guide member 12 is attached by screwing a ball plunger 12H, which is a convex portion, into a screw hole 12G provided in the second guide member 12B. More specifically, the ball plunger 12H has a cylindrical shape, extends in the front-rear direction, and has an external thread formed on the outer peripheral surface. The ball plunger 12H has a ball portion inside a cylindrical shape. The ball portion has a rear end protruding rearward from a cylindrical rear end, and a spring force is applied rearward (not shown).

  The rear end of the ball portion of the ball plunger 12H fits into one of the receiving holes 11B and 11F provided in the operation member 11. Specifically, when the cam pin 10B of the support member 10 inserted into the inserted portion 11A provided on the operation member 11 is located at the center in the left and right direction of the second inserted portion 11C, the ball plunger 12H has a rear end portion of the ball portion. It fits into the receiving hole 11B. When the cam pin 10B of the support member 10 inserted into the inserted portion 11A provided on the operation member 11 is located at the center of the left and right of the second inserted portion 11D, the ball plunger 12H has a receiving hole at the rear end of the ball portion. 11F fits. Thus, it is possible to prevent the operation member 11 from being inadvertently shifted with respect to the guide member 12.

  Next, the operation of the centering device will be described.

  In this centering device, both left and right ends of the operation member 11 are fitted into the notch grooves 12D of the pair of first guide members 12A. The vertical dimension of the notch groove 12D is slightly larger than the vertical dimension of the left and right ends of the operating member 11. The size of the notch groove portion 12D in the front-back direction is slightly larger than the size of the operation member 11 in the thickness direction of the flat plate. Thereby, the operation member 11 is guided by the guide member 12 to move in the left-right direction, and can reciprocate in the left-right direction with respect to the guide member 12. Also, in this centering device, the pair of first guide members 12A sandwich the upper left and right end surfaces of the support member 10 from the left and right directions, and each has a slight gap between the upper left and right end surfaces of the support member 10. It is arranged. The first guide member 12A has a dimension in the front-rear direction slightly larger than the sum of the thicknesses of the support member 10 and the operation member 11 in the form of a flat plate. As a result, the support member 10 is guided by the guide member 12 to move vertically, and can reciprocate vertically with respect to the guide member 12. That is, the guide member 12 guides the movement of the support member 10 in the vertical direction.

  First, the guide member 12 of the centering device is fixed to a gantry or the like (not shown) with the notch 10A provided in the support member 10 facing upward. At this time, the centering device is fixed to the gantry so that the movement of the operation member 11 in the left-right direction and the movement of the support member 10 in the vertical direction are not hindered.

  As shown in FIG. 2A, when the operation member 11 is located on the left side, the operation member 11 projects leftward from the left end surface of the first guide member 12 </ b> A disposed on the left end surface of the support member 10. ing. The right end surface of the operation member 11 is substantially flush with the right end surface of the first guide member 12A disposed on the right end surface of the support member 10. The cam pin 10B of the support member 10 is located at the left and right center of the second inserted portion 11D of the inserted portion 11A of the operation member 11. The ball plunger 12H attached to the second guide member 12B has a rear end portion of a ball portion protruding rearward from the rear end fitted into a receiving hole 11F provided in the operation member 11 (not shown). . Thus, in this centering device, the support member 10 supports the work W1 having the outer diameter A from below.

  Next, the operation member 11 is moved rightward. First, a predetermined force is applied to the left end of the operation member 11 rightward. Then, the ball portion of the ball plunger 12H fitted into the receiving hole 11F of the operating member 11 is pushed forward, and comes off the receiving hole 11F of the operating member 11. Then, the inserted portion 11A provided on the operation member 11 moves rightward together with the operation member 11. At this time, the cam pin 10B is moved from the left and right center of the second inserted portion 11D of the inserted portion 11A of the operation member 11 to the second inserted portion 11C of the inserted portion 11A via the first inserted portion 11E. You will be guided. Thereby, the support member 10 moves upward.

  As shown in FIG. 2B, when the rightward movement of the operation member 11 is completed, the operation member 11 is moved rightward from the right end surface of the first guide member 12A whose right end is disposed on the right end surface of the support member 10. Protrude into. Further, the left end surface of the operation member 11 is substantially flush with the left end surface of the first guide member 12A disposed on the left end surface of the support member 10. The rear end of the ball portion of the ball plunger 12H attached to the second guide member 12B protrudes rearward from the rear end and fits into the receiving hole 11B of the operation member 11 (not shown). In the support member 10, the cam pin 10B is located at the left and right center of the second inserted portion 11C of the inserted portion 11A of the operation member 11. That is, the receiving hole 11B fits into the ball plunger 12H when the cam pin 10B is inserted into the second inserted portion 11C. Thus, in this centering device, the support member 10 supports the work W2 having the outer diameter B from below. At this time, the centering device moves the operation member 11 in the left-right direction and moves the support member 10 in the up-down direction, so that the center axes of the work W1 having the outer diameter A and the work W2 having the outer diameter B are respectively adjusted. The workpieces W1 and W2 can be supported from below with their positions aligned with each other.

  When moving the operation member 11 to the left, a predetermined force is applied to the right end of the operation member 11 to the left. Then, in the support member 10, the cam pin 10B is guided from the left and right center of the second inserted portion 11C of the inserted portion 11A to the second inserted portion 11D via the first inserted portion 11E. As a result, the support member 10 moves downward. In this way, the centering device can change the position of the support member 10 by reciprocating up and down in two steps at two different heights as the operating member 11 reciprocates in the left and right directions. Therefore, this centering device can center the works W1 and W2 in accordance with the outer diameters of the two types of cylindrical or columnar works W1 and W2 having different outer diameters.

  As described above, the centering device can change the position of the support member 10 in the up-down direction by moving the operation member 11 in the left-right direction. Therefore, the centering device can center the work by moving the support member 10 in the vertical direction according to the outer diameter of each of the two types of works W1 and W2 having different outer diameters.

  Therefore, the centering device of the first embodiment can easily center the works W1 and W2.

  The operation member 11 and the support member 10 are provided with an inserted portion 11A provided with a first inserted portion 11E extending in the inclined direction, and the support member 10 is provided with a cam pin 10B. For this reason, this centering device can easily cope with a change in the outer diameter of the workpieces W1 and W2 to be centered by changing the outer shape of the inserted portion 11A. The centering device can change the position of the support member 10 in the up-down direction by moving the operation member 11 in the left-right direction. That is, this centering device can facilitate centering according to the outer diameter of each of two types of works W1 and W2 having different outer diameters.

  The inserted portion 11A includes two second inserted portions 11C and 11D which are parallel to each other, have different vertical positions, and extend in the horizontal direction, and the ends of the adjacent second inserted portions 11C and 11D are adjacent to each other. They are connected via the first inserted portion 11E. For this reason, when the cam pin 10B is located at the second inserted portions 11C and 11D, the centering device prevents the support member 10 from being inadvertently moved downward due to the weight of the works W1 and W2. it can.

  The guide member 12 and the operation member 11 have a ball plunger 12H provided on the guide member 12, and receiving holes 11B and 11F provided on the operation member 11. The receiving holes 11B and 11F fit into the ball plunger 12H when the cam pin 10B is inserted into the second inserted portions 11C and 11D. For this reason, in this centering device, since the ball plunger 12H and the receiving holes 11B and 11F are fitted to each other, it is possible to suppress the cam pin 10B from being inadvertently displaced from the second inserted portions 11C and 11D.

<Embodiment 2>
As shown in FIGS. 3A and 3B, and FIGS. 4A and 4B, the centering device according to the second embodiment has a structure of the support member 110, an outer shape of the operation member 111, and a guide member. 112 differs from the first embodiment. Other configurations are the same as those of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  The support member 110 has a pair of first support portions 110E and second support portions 110D. The support member 110 has a flat plate shape, and has a width in the vertical direction (the upper and lower sides are the upper and lower sides in FIG. 3A; the same applies hereinafter) and has the width in the left and right direction (the left and right sides are the left and right sides in FIG. 3A). The same applies hereinafter.) The support member 110 is provided with a notch 110A that is cut out in a trapezoidal shape that is wide in the upward direction at the left and right intermediate portion of the upper end surface. The support member 110 has protrusions 110F that protrude outward in the left-right direction at upper portions of both left and right end surfaces. The support member 110 is provided with a flat plate-shaped mounting hole 110H penetrating in the thickness direction immediately below the notch 110A at the center in the left and right direction. A first cam pin 110B, which is an insertion portion described later, is inserted into the mounting hole 110H. The support member 110 is provided with a pair of first elongated holes 110G penetrating in the thickness direction of the flat plate at the upper portions of both left and right ends. These first elongated holes 110G have two opposing sides parallel to each other. Each of the first elongated holes 110G has a dimension between two opposing sides slightly larger than the inner diameter of the mounting hole 110H. These first elongated holes 110G are symmetrical to each other at the left and right centers of the support member 110. These first elongated holes 110G increase in size between each other in the upward direction.

  Each of the pair of first support portions 110E has an annular shape having a thickness. These first support portions 110E are arranged such that an annular hole communicates with each of the pair of first long holes 110G of the support member 110, and the front end surface is the rear end surface of the support member 110 (the front and rear sides are front sides in FIG. 3A). (The same applies hereinafter). At this time, the pair of first support portions 110E protrude left and right inward from both left and right sides of the notch 110A. The inner diameter of the annular hole of the first support portion 110E is slightly smaller than the dimension between two opposing sides of the first elongated hole 110G of the support member 110.

  The second support 110D has the same outer shape as the first support 110E. In the second support portion 110D, the inner diameter of the annular hole is the same as the inner diameter of the mounting hole 110H of the support member 110. The second support portion 110D has the central axis of the annular hole disposed on the central axis of the mounting hole 110H of the support member 110, and has a front end surface in contact with a rear end surface of the support member 110. At this time, the upper end of the second support portion 110D protrudes upward from the lower end of the notch 110A.

  The operation member 111 has a flat plate shape, has a width in the vertical direction, and extends in the horizontal direction. The size of the operation member 111 in the vertical direction is larger at the left and right middle portions than at the left and right end portions, and the left and right middle portions protrude upward. The dimension between two opposing sides of the second inserted parts 11C and 11D of the inserted part 11A of the operation member 111 and the dimension between two opposing sides of the first inserted part 11E are the second support parts 110D. Slightly larger than the inner diameter of the annular hole.

  The guide member 112 has a pair of first guide member 112A, second guide member 112B, and third guide member 112C. The size of the first guide member 112A in the front-rear direction is slightly smaller than the sum of the thickness of the flat plate of the support member 110 and the size between one end surface and the other end surface of the first support portion 110E or the second support portion 110D. large. The pair of first guide members 112A sandwich the lower left and right end surfaces on the lower side of the protruding portion 110F of the support member 110 from the left and right directions, and are each disposed with a slight gap between the left and right end surfaces of the support member 110. ing.

  The second guide member 112B has a flat shape, has a width in the up-down direction, and extends in the left-right direction. The left and right intermediate portions of the upper end surface of the second guide member 112B are cut out in a trapezoidal shape that is wide upward. The vertical dimension of the second guide member 112B is larger than the vertical dimension of the first guide member 112A. As shown in FIG. 3B, the second guide member 112B is provided with a first convex portion 112L protruding rearward at a lower end portion of the rear end surface. The first protrusion 112L extends horizontally from the left end surface to the right end surface of the second guide member 112B. In addition, the second guide member 112B is provided with a pair of second convex portions 112M that protrude rearward above the right and left ends of the rear end surface. These second convex portions 112M have a width in the left-right direction and extend in the up-down direction. The second convex portion 112M has a predetermined size between the lower end surface and the upper end surface of the first convex portion 112L to form a cutout groove portion 112N. The notch groove portion 112N is slightly larger than the vertical dimension of the left and right ends of the operation member 111. The first protrusion 112L and the second protrusion 112M have slightly larger dimensions in the front-rear direction than the flat thickness of the operation member 111.

  The second guide member 112B is provided with a bolt insertion hole 112F penetrating in the thickness direction of a flat plate at the upper and lower central portions and the lower end portion of each of the left and right ends. The vertical dimension between the central axes of the bolt insertion holes 112F provided at the upper and lower central portions and the lower end portion of the second guide member 112B is the same as the bolt insertion holes 112E provided at the upper and lower ends of the first guide member 112A. Are the same as those in the vertical direction between the central axes. These bolt insertion holes 112F are provided so as to avoid the notch grooves 112N.

  The second guide member 112B has a vertically long second elongated hole 112P penetrating in the thickness direction of a flat plate immediately below a trapezoidal notch at the center in the left and right direction. The two opposing sides of the second elongated hole 112P are parallel. The dimension between two opposing sides of the second elongated hole 112P is slightly larger than the inner diameter of the annular hole of the second support 110D. In the second guide member 112B, a pair of third elongated holes 112Q long in the left-right direction are provided in upper portions of both left and right end portions so as to penetrate in the thickness direction of the flat plate. These three long holes 112Q have two opposing sides parallel to each other. These third slots 112Q are symmetrical at the left and right centers of the second guide member 112B. The dimension between two opposing sides of the third elongated hole 112Q is slightly larger than the inner diameter of the annular hole of the first support 110E.

  The second guide member 112B is fitted with the left and right ends of the operation member 111 into the notch groove 112N, and the rear end surfaces of the first convex portion 112L and the second convex portion 112M abut on the front end surface of the first guide member 112A. Have been. At this time, the notch groove 112N is slightly larger than the vertical dimension of the left and right ends of the operation member 111. The first protrusion 112L and the second protrusion 112M have slightly larger dimensions in the front-rear direction than the flat thickness of the operation member 111. Thereby, the operation member 111 is guided by the guide member 112 to move in the left-right direction, and can reciprocate in the left-right direction with respect to the guide member 112. In the second guide member 112B, the center axes of the bolt insertion holes 112F provided in the upper and lower central portions and the lower end portion of the left and right end portions respectively correspond to the pair of first guide members 112A arranged on the left and right end surfaces of the support member 110, respectively. It matches the center axis of the provided bolt insertion hole 112E. The left and right ends of the operation member 111 are sandwiched between the first guide member 112A and the second guide member 112B from the front-rear direction. The vertical dimension of the left and right intermediate portion of the operation member 111 is larger than the vertical dimension of the notch groove 112N of the second guide member 112B. Therefore, the operation member 111 does not fall off the guide member 112.

  The third guide member 112C has a flat plate shape, has a width in the up-down direction, and extends in the left-right direction. The lower side of the third guide member 112C has a smaller dimension in the left-right direction than the upper side. The third guide member 112C has a thickness dimension in the front-rear direction that is larger on the lower side than on the upper side, and the lower side protrudes forward. The third guide member 112C has a trapezoidal shape in which the left and right intermediate portion of the upper end surface is widened upward. The vertical dimension of the upper side of the third guide member 112C is larger than the vertical dimension of the first guide member 112A. The third guide member 112C is provided with a female screw thread formed on the inner peripheral surface at the upper and lower central portion and the lower end portion of each of the upper right and left ends, and a flat plate-shaped screw hole 112J penetrating in the thickness direction.

  The third guide member 112C is provided with a vertically elongated fourth elongated hole 112R penetrating in the thickness direction of a flat plate immediately below a trapezoidal notch at the center in the left and right direction. The fourth elongated hole 112R has the same shape as the second elongated hole 112P of the second guide member 112B. In the third guide member 112C, a fifth elongated hole 112S extending in the left-right direction is provided in the upper part of each of the upper right and left ends so as to penetrate in the thickness direction of a flat plate. The fifth elongated hole 112S has the same shape as the third elongated hole 112Q of the second guide member 112B. These fifth elongated holes 112S are symmetrical at the left and right centers of the third guide member 112C.

  The third guide member 112C is arranged such that an upper front end surface thereof is in contact with a rear end surface of the first guide member 112A. In the third guide member 112C, the center axes of the screw holes 112J provided at the upper and lower ends and the lower end of the upper left and right ends are respectively provided at the upper and lower centers and the lower end of the left and right ends of the second guide member 112B. And the center axis of the bolt insertion hole 112F. In the third guide member 112C, the position of the fourth elongated hole 112R matches the position of the second elongated hole 112P of the second guide member 112B. In the third guide member 112C, the position of the pair of fifth long holes 112S matches the position of the pair of third long holes 112Q of the second guide member 112B.

  The centering device includes a mounting hole 110H of the support member 110, an annular hole of the second support portion 110D, an inserted portion 11A of the operation member 111, a second elongated hole 112P of the second guide member 112B, and a third guide member. A fourth slot 112R of 112C forms a space that overlaps and communicates. This space is hereinafter referred to as a first space 20. In this centering device, a first cam pin 110B, which is an insertion portion, is inserted through the first space 20. Specifically, the first cam pin 110B has a columnar shape and extends in the front-rear direction. The outer diameter of the first cam pin 110B is the same as the inner diameter of the annular hole of the second support portion. The first cam pin 110B has a flange portion extending radially at the front end, and a groove is formed on the outer periphery of the rear end portion in the circumferential direction. The centering device inserts the first cam pin 110B backward from the front side of the second guide member 112B into the first space 20, and projects the groove of the first cam pin 110B behind the rear end face of the third guide member 112C. Let me. The centering device has an E-shaped retaining ring 110J fitted in the groove of the first cam pin 110B. Thus, the first cam pins 110B do not fall out of the first space 20. At this time, the second support 110D is rotatable with respect to the first cam pin 110B. Further, the first cam pin 110B is movable in the hole length direction with respect to the second long hole 112P of the second guide member 112B and the fourth long hole 112R of the third guide member 112C.

  This centering device includes a pair of first elongated holes 110G of the support member 110, an annular hole of the pair of first support portions 110E, a pair of third elongated holes 112Q of the second guide member 112B, and a third guide member 112C. The pair of fifth long holes 112S respectively form a pair of spaces that overlap and communicate with each other. These spaces are hereinafter referred to as a second space 21. In the centering device, the second cam pins 110C are inserted into the respective second spaces 21. Specifically, the outer shape of the second cam pin 110C is the same as that of the first cam pin 110B. The outer diameter of the second cam pin 110C is the same as the inner diameter of the annular hole of the first support 110E. Then, the second cam pin 110C is inserted into each of the second spaces 21 from the front side of the second guide member 112B in the rearward direction, and the groove of the second cam pin 110C is projected rearward of the rear end face of the third guide member 112C. The centering device has an E-shaped retaining ring 110J fitted in a groove of the second cam pin 110C. Thus, the second cam pins 110C do not fall out of the second space 21. At this time, the first support 110E is rotatable with respect to the second cam pin 110C. Further, the second cam pins 110C correspond to the pair of first elongated holes 110G of the support member 110, the pair of third elongated holes 112Q of the second guide member 112B, and the pair of fifth elongated holes 112S of the third guide member 112C. It is movable in the length direction of the hole.

  In this centering device, the pair of first guide members 112A sandwich the lower left and right end surfaces of the lower side of the protrusion 110F of the support member 110 from the left and right directions, and each has a slight gap between the left and right end surfaces of the support member 110. Are arranged with a space. Further, the first guide member 112A has a dimension in the front-rear direction that is greater than a sum of a flat thickness of the support member 110 and a dimension between one end surface and the other end surface of the first support portion 110E or the second support portion 110D. Slightly larger. As a result, the support member 110 is guided by the guide member 112 to move vertically, and can reciprocate vertically with respect to the guide member 112.

  Next, the operation of the centering device will be described.

  As shown in FIG. 4A, when the operation member 111 is located on the left side, the operation member 111 projects leftward from the left end surface of the first guide member 112 </ b> A disposed on the left end surface of the support member 110. ing. The right end surface of the operation member 111 is substantially flush with the right end surface of the first guide member 112A arranged on the right end surface of the support member 110. The first cam pin 110B is located at the left and right center of the second inserted portion 11D of the inserted portion 11A of the operation member 111. The first cam pin 110B has a front end located below the second elongated hole 112P of the second guide member 112B. The rear end of the first cam pin 110B is located below the fourth elongated hole 112R of the third guide member 112C. Each of the pair of second cam pins 110C is located above the first elongated hole 110G of the support member 110. The front ends of the second cam pins 110C are located on the left and right sides of the pair of third elongated holes 112Q of the second guide member 112B. The rear ends of the second cam pins 110C are located on the left and right outer sides of the pair of fifth elongated holes 112S of the third guide member 112C. At this time, let A be the diameter of a circle that simultaneously contacts the outer peripheral surfaces of the pair of first support portions 110E and second support portions 110D. Thus, in this centering device, the pair of first support portions 110E abut on the left and right sides of the lower half of the work W1 having the outer diameter A, and the second support portion 110D contacts the lower end of the work W1 having the outer diameter A. The workpiece W1 having the outer diameter A can be supported in contact therewith.

  Next, the operation member 111 is moved rightward. Then, the first cam pin 110B is guided by the second inserted portion 11C from the left and right center of the second inserted portion 11D of the inserted portion 11A of the operation member 111 via the first inserted portion 11E, and moves upward. In addition, the support member 110 and the second support portion 110D move upward together with the first cam pins 110B. That is, the second support portion 110D moves upward with the upward movement of the support member 110. At this time, the front end of the first cam pin 110B moves upward through the second elongated hole 112P of the second guide member 112B. Further, the rear end of the first cam pin 110B moves upward in the fourth elongated hole 112R of the third guide member 112C.

  As shown in FIGS. 5A and 5B, each of the pair of second cam pins 110C has a front end portion and a rear end portion having a third elongated hole 112Q of the second guide member 112B and a third elongated hole 112Q of the third guide member 112C. It is inserted through the five long holes 112S. Therefore, these second cam pins 110C cannot move in the vertical direction. When the pair of first elongated holes 110G of the support member 110 move upward together with the support member 110, the pair of second spaces 21 move left and right inside. As a result, the second cam pins 110C inserted into each of the pair of second spaces 21 move right and left inward. Further, the first support portion 110E into which the second cam pin 110C is inserted also moves right and left inward together with the second cam pin 110C. That is, the first support portion 110E moves right and left inward when the support member 110 moves upward. That is, the support member 110 has a pair of first support portions 110E which abut on the left and right sides of the lower half of the workpieces W1 and W2 and move in the left and right direction with the vertical reciprocation of the support member 110. .

  As shown in FIG. 4B, when the rightward movement of the operation member 111 is completed, the operation member 111 is moved rightward from the right end surface of the first guide member 112A whose right end is disposed on the right end surface of the support member 110. Protrude into. Further, the left end surface of the operation member 111 is substantially flush with the left end surface of the first guide member 112A arranged on the left end surface of the support member 110. The support member 110 has the first cam pin 110B located at the left and right center of the second inserted portion 11C of the inserted portion 11A of the operation member 111. The first cam pin 110B has a front end and a rear end located above the second long hole 112P of the second guide member 112B and the fourth long hole 112R of the third guide member 112C, respectively. The front and rear ends of the pair of second cam pins 110C are located on the left and right inside of the pair of third long holes 112Q of the second guide member 112B and the pair of fifth long holes 112S of the third guide member 112C. At this time, the diameter of a circle that comes into contact with the outer peripheral surfaces of the pair of the first support 110E and the second support 110D at the same time is B. Thus, in the centering device, the pair of first support portions 110E abut on the left and right sides of the lower half of the work W2 having the outer diameter B, and the second support portion 110D abuts on the lower end of the work W2 having the outer diameter B. The workpiece W2 having the outer diameter B can be supported in contact therewith. At this time, the centering device also moves the operation member 111 in the left-right direction and moves the support member 110 in the up-down direction, so that the center axes of the work W1 having the outer diameter A and the work W2 having the outer diameter B are respectively adjusted. The workpieces W1 and W2 can be supported at the same position. Thus, this centering device can also change the position of the support member 110 by reciprocating up and down in two steps at two different heights as the operation member 111 reciprocates in the left and right directions. In other words, this centering device also centers the works W1 and W2 in accordance with the outer diameters of the two types of cylindrical or columnar works W1 and A2 having different outer diameters. be able to.

  When moving the operation member 111 to the left, a predetermined force is applied to the right end of the operation member 111 in the left direction. Then, the first cam pin 110B of the support member 110 is guided from the left and right center of the second inserted portion 11C of the inserted portion 11A to the second inserted portion 11D via the first inserted portion 11E. As a result, the support member 110 moves downward. In addition, with the downward movement of the support member 110, the pair of first support portions 110E move left and right, and the second support portion 110D moves downward.

  Thus, the centering device can change the vertical position of the support member 110 by moving the operation member 111 in the left-right direction. Therefore, the centering device can center the works W1 and W2 by moving the support member 110 in the vertical direction according to the outer diameters of the two types of works W1 and W2 having different outer diameters. .

  Therefore, the centering device of the second embodiment can also easily center the works W1 and W2.

  Further, the operation member 111 and the support member 110 are provided with an inserted portion 11A having a first inserted portion 11E extending in an inclining direction, and the support member 110 is provided with a first cam pin 110B. . For this reason, this centering device can easily cope with a change in the outer diameter of the workpieces W1 and W2 to be centered by changing the outer shape of the inserted portion 11A. The centering device can change the position of the support member 110 in the vertical direction by moving the operation member 111 in the horizontal direction. That is, this centering device can facilitate centering according to the outer diameter of each of two types of works W1 and W2 having different outer diameters.

  The inserted portion 11A includes two second inserted portions 11C and 11D which are parallel to each other, have different vertical positions, and extend in the horizontal direction, and the ends of the adjacent second inserted portions 11C and 11D are adjacent to each other. They are connected via the first inserted portion 11E. Therefore, when the first cam pin 110B is located at the second inserted portion 11C, 11D, the centering device prevents the support member 110 from being inadvertently moved downward due to the weight of the workpieces W1, W2. be able to.

  The guide member 112 and the operation member 111 have a ball plunger 12H provided on the guide member 112 and receiving holes 11B and 11F provided on the operation member 111. The receiving holes 11B and 11F fit into the ball plunger 12H when the first cam pin 110B is inserted into the second inserted portions 11C and 11D. For this reason, in this centering device, since the ball plunger 12H and the receiving holes 11B and 11F are fitted to each other, it is possible to prevent the first cam pin 110B from being unintentionally shifted from the second inserted portions 11C and 11D.

  The support member 110 has a pair of first support portions 110E which abut on the left and right sides of the lower half of the workpieces W1 and W2 and move in the left and right direction with the vertical reciprocation of the support member 110. ing. For this reason, this centering device can disperse the weight of the works W1 and W2 applied to the support member 110 by supporting the outer peripheral surfaces of the works W1 and W2 with the pair of first support portions 110E. In addition, in the centering device, since the first support portion 110E is provided on the support member 110, the material of the first support portion 110E can be changed according to the material of the works W1 and W2.

<Other embodiments>
The present invention is not limited to the first and second embodiments described with reference to the above description and the drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first and second embodiments, the number of the second inserted portions of the inserted portion of the operation member is two. However, the present invention is not limited to this, and the number of the second inserted portions of the inserted portion of the operation member is three or more. May be provided. In this case, the first inserted portions are connected to each other between the adjacent second inserted portions.
(2) In the first embodiment, when the operation member is located on the left side, the support member is located on the lower side, and when the operation member is located on the right side, the support member is located on the upper side. When is located on the left side, the support member may be located above, and when the operation member is located on the right side, the support member may be located below.
(3) In the first embodiment, a notch portion that is cut out in a V-shape that is wide upward is provided at the left and right central portions of the upper end surface of the support member. The portion may be cut out in a U shape, a semicircle shape, a rectangular shape, or the like, or may not be cut out.
(4) In the first embodiment, the ball plunger is provided. However, the present invention is not limited to this, and a leaf spring or the like may be used. In this case, the base end of the leaf spring is fixed to the guide member, and a protruding portion that fits into the receiving hole is provided at the distal end, and this protruding portion is fitted into the receiving hole.
(5) In the first and second embodiments, the insertion portion is provided as a separate member with respect to the support member. However, the present invention is not limited thereto, and the insertion portion may be provided integrally with the support member.
(6) In the first and second embodiments, the receiving hole is provided in the operation member. However, the present invention is not limited to this, and the receiving hole may be provided in the supporting member. In this case, the receiving holes are provided at the same position in the left-right direction and adjacent to each other in the up-down direction.
(7) In the first and second embodiments, the ball plunger is provided on the guide member. However, the present invention is not limited to this, and the ball plunger may be provided on the support member. In this case, the receiving holes are provided at the same position in the left-right direction and adjacent to each other in the up-down direction.
(8) In the first and second embodiments, the ball plunger is provided in the guide member and the receiving hole is provided in the operating member. However, the present invention is not limited to this, and the ball plunger is provided in the operating member and the receiving hole is provided in the guide member. May be provided.
(9) In the first and second embodiments, the insertion portion is provided on the support member and the inserted portion is provided on the operation member. However, the present invention is not limited to this, and the insertion portion is provided on the support member and inserted on the operation member. A part may be provided.
(10) In the second embodiment, the second support portion is rotatable with respect to the first cam pin, and the first support portion is rotatable with respect to the second cam pin. However, the present invention is not limited to this. The first cam pin may not be rotatable with respect to the first cam pin, and the first support portion may not be rotatable with respect to the second cam pin.

  W1, W2 Work, 10, 110 Support member, 10B Cam pin (insertion portion), 110B First cam pin (insertion portion), 11, 111 Operation member, 11A Inserted portion, 11B, 11F Receiving hole (Concave portion), 11C, 11D: second inserted portion, 11E: first inserted portion, 12, 112: guide member, 12H: ball plunger (convex portion), 110E: first support portion

Claims (3)

An operating member that reciprocates in the left-right direction,
A support member that supports the work from below, and reciprocates vertically in accordance with the reciprocation of the operation member in the left-right direction;
A guide member for guiding the movement of the support member in the up-down direction,
Equipped with a,
The operation member and the support member,
An inserted part provided on one of the sides and including a first inserted part extending in the inclined direction;
An insertion portion provided on the other side and moved by being inserted into the inserted portion;
Has,
The inserted portion,
Comprising a second insertion member multiple horizontally extending different parallel in the vertical position with one another, that you connecting end portion of the adjacent second insertion member via the first insertion member Characteristic centering device. The guide member and the support member, the operation member and the support member, or the guide member and the operation member,
A convex portion provided on one of them,
Provided on the other, and a concave portion fitted to the convex portion when the insertion portion is inserted into said second insertion member,
The centering device according to claim 1, further comprising: The support member,
In contact with the left and right sides of the lower half of the work, according to claim 1, characterized that you have a first support portion of the pair of moving vertical with the reciprocating movement in the lateral direction of the support member or 3. The centering device according to 2.

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