JPH0244667B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deburring device for removing burrs generated on a plate material by press working or the like.

Conventionally, burrs formed on a plate have been removed using a deburring device equipped with a deburring wheel that rotates orthogonally to the direction in which the plate is fed.

In a conventional deburring device, a pair of left and right pinch rollers are provided on both sides of a deburring wheel, which is provided to press down from above a plate material being transferred on a table by a belt conveyor. It is desirable that this pinch roller be provided as close as possible to the processing position of the deburring wheel. In this case, it is possible to approach the pinch roller by making it smaller in diameter, but if the pinch roller is made smaller in diameter, there are problems in that it is not easy to run over a thick plate and it is not possible to increase the pressing force.

Furthermore, in the past, since the left and right pinch rollers did not move up and down in synchrony, there was a problem that in the case of a narrow plate material, the pinch rollers would hit one side and the plate material would be conveyed in a meandering manner.

Furthermore, if the pressing force on the plate material by the pinch roller is small, the plate material may be moved during deburring by the deburring wheel, and if the pressing force is excessive, only the pinch roller part is pressed down. Therefore, there is a problem that sometimes the plate material may be curved. Furthermore, after adjusting the vertical position of the belt conveyor or deburring wheel according to the thickness of the plate material, a fixing device is required to fix the belt conveyor or the deburring wheel at the adjusted position, which increases the complexity of the structure.

This invention was made in view of the conventional problems as described above.

Hereinafter, a preferred embodiment of the present invention will be described in detail using the drawings.

In the following explanation, "left and right" refers to the direction corresponding to the left side in FIG. 1 as "left", and the direction corresponding to the right side in FIG. 1 as "right".
Also, the term "front and rear" refers to the direction corresponding to the left side in FIG. 2 as "front" and the direction corresponding to the right side in FIG. 2 as "rear".

1 to 3 show a front view, a side view, and a rear view of a deburring device 1 embodying the present invention, and the deburring device 1 shows an upper frame 5 of a C-shaped frame 3. a deburring wheel 7 that is rotatably supported on a shaft; and a belt conveyor for transporting plate materials provided on a table 13 supported on the lower frame 9 of the C-shaped frame 3 via a lifting device 11. 15, and a material pressing device 17 for pressing the plate material transferred by the belt conveyor 15 from above.

As shown in FIG. 4, the deburring wheel 7 is formed into a cylindrical shape having an appropriate length (width) and is made of an elastic member, etc. , 19, the wheel shaft 21 is rotatably supported by flanges 23, 23 attached to both ends of the wheel shaft 21.

In addition, near the center of the wheel shaft 21,
A support device for supporting the central portion of the deburring wheel 7 is provided, and a tapered portion 25 is formed, and a collection chuck 27 is slidably fitted into the tapered portion 25. A connecting pin 29 is provided at the base of the collector chuck 27, and the connecting pin 29 is inserted into an elongated hole 31 formed in the wheel shaft 21 so as to be movable in the left and right direction in FIG. The connecting pin 29 is provided with a female thread 33, and the threaded portion 3 of a push-pull bolt 37 is slidably inserted into a support hole 35 bored at one end of the wheel shaft 21.
9 is engaged. By rotating this push-pull bolt 37 in the forward and reverse directions, the connecting pin 29
The collector chuck 27 is connected to the wheel shaft 21 via the
The deburring wheel 7 is supported by sliding the deburring wheel 7 along the tapered portion 25 of the deburring wheel 7 in the front-rear direction (horizontal direction in FIG. 4) and adjusting the outer diameter of the deburring chuck 27 as appropriate.

A multi-stage pulley 41 is fixedly provided on the other end side of the wheel shaft 21, and a multi-stage pulley 41 is fixedly provided to the output shaft 45 of the prime mover 43, and a belt 49 is passed between the pulley 47 and the other stage pulley 47, which is fixedly provided to the output shaft 45 of the prime mover 43. 43
power is transmitted to the wheel shaft 21.

A holder 53 and a spherical bearing 55 are fitted inside the end of the multi-stage pulley 41 of the wheel shaft 21 via a bearing 51, and a bolt 57 is inserted into the spherical bearing 55. A rotation stopper pin 59 is provided on the head to fix the bolt 57.

Further, one end of a rod 61 is connected to the tip of the bolt 57, and the other end of the rod 61 is connected to a clevis 65 (see FIG. 2) via a pin 63.
is connected to. One end of an eccentric shaft 67 that is orthogonal to the wheel shaft 21 in a horizontal plane is rotatably supported on the clevis 65 via a bearing 69 . A pulley 71 is fixedly attached to the other end of the eccentric shaft 67, and the power of the prime mover 73 is transmitted through a belt 79 that is passed between the pulley 77 and the pulley 77, which is fixedly attached to the output shaft 75 of the prime mover 73. is transmitted to the eccentric shaft 67.

Therefore, when the eccentric shaft 67 is rotated by the prime mover 73 via the output shaft 75, pulley 77, belt 79, and pulley 71, the clevis 65 moves up and down and in the front and rear directions (left and right in FIG. 2). The wheel shaft 21 moves in the front-rear direction via a multi-stage pulley 41 connected to the wheel, and the deburring wheel 7 supported by the wheel shaft 21 moves in the front-rear direction. On the other hand, the deburring wheel 7
is rotated by the prime mover 43 via the output shaft 45, multi-stage pulley 47, belt 49, multi-stage pulley 41, and wheel shaft 21, so the deburring wheel 7 rotates while moving in the front-back direction.

As shown in FIGS. 6 to 8, the lifting device 11 is arranged at four symmetrical positions in the front and rear and left and right directions of the table support 81 provided on the lower frame 9, and the sprocket 83 is mounted on a bearing 85. These sprockets 83 are rotatably supported through
Chain 87 is passed around. A guide nut 89 having an internal thread is connected to each of the sprockets 83, and an adjusting screw 91 is engaged with the guide nut 89. The adjuster screw 91 has a lower end supported by the lower frame 9 in a vertically movable manner,
The upper end portion is detachably attached to the table 13 with a bolt 95 via a spacer 93.

In addition, the adjustment screw 9 of the four locations mentioned above is
A worm wheel 99 is fixedly provided on the outer periphery of a guide nut 89 that engages with an adjusting screw 91 on either the right or left side of the front side, and the worm wheel 99 is rotatably supported on the table support base 81. A worm 103 fixedly provided to the rear end of the worm shaft 101 is engaged. A handle 105 is provided at the front end of the worm shaft 101.
is provided.

Therefore, when the handle 105 is manually rotated, the worm 103 is rotated through the worm shaft 101.
rotates, and the worm wheel 99 that engages with the worm 103 rotates. When the worm wheel 99 rotates, the guide nut 89 and sprocket 83 rotate integrally, and the other three sprockets 83 are rotated at the same speed via the chain 87. Therefore, the sprockets 83 at four locations are connected to the guide nuts 8.
The adjuster screws 91 are rotated integrally with the guide nut 89 at a constant speed, and the adjuster screws 91 that engage with the guide nuts 89 move up and down in synchrony, allowing the table 13 to be raised or lowered in a horizontal state.

After adjusting the height position by moving the table 13 up and down as described above, the adjusting screw 91 is screwed into the guide nut 89 by the screw mechanism and the worm gear mechanism in which the worm 103 is engaged with the worm wheel 99. The table 13 does not naturally descend due to its own weight, vibration, or the like.

The belt conveyor 15 provided on the table 13 for transporting the plate material is connected to the table 13.
The drive roll 109 is rotatably supported at one end via a bearing, and the driven roll 111 is rotatably supported via a bearing at the other end. It is rotationally driven in the direction of arrow a in .

The belt conveyor 15 has a drive roll 10
sprocket 1 fixed to one end of sprocket 9;
Power is transmitted from the gearbox 115 through a chain 121 that is routed between the gearbox 13 and a sprocket 119 that is fixed to the output shaft 117 of the gearbox 115.

As shown in FIGS. 4 and 5, the material holding device has large-diameter pinchers for holding down the plate material at the lower ends of both left and right sides of gate-shaped arms 123 provided opposite to each other on the front and rear inside of the upper frame 5. roller 125;
A small diameter pinch roller 127 arranged between this large diameter pinch roller 125 and the deburring wheel 7
A pair of pinch rollers 129 arranged in parallel,
They are arranged symmetrically on both the left and right sides of the deburring wheel 7,
Each is rotatably supported. Said arm 1
A support member 131 that protrudes upward is fixedly provided at the central upper end of 23, and the support member 131
The upper end of the pin 1 is attached to the tip of the first link 133.
It is pivoted by 35. Said first link 133
The base of the deburring wheel 7 is fixed to a shaft 139 that is rotatably supported on the upper frame 5 via a hinge pin 137 at a position diagonally above the deburring wheel 7. Further, the lower end of one side of the arm 123 is connected to the first link 13.
It is pivoted by a pin 143 to the tip of a second link 141 provided in parallel with 3. The base of the second link 141 is pivotally supported by the upper frame 5 via a pin 145. Note that the distance between the respective axes of the first link 133 and the second link 141 provided in parallel, that is, the axis 1 of the first link 133
39 axis center 139P and pin 135 axis center 135P
The axial distance between l ₁ and the pin 143 of the second link 141
Center-to-axis distance between axis 143P and pin 145P l ₂
are arranged at equal distances (l ₁ =l ₂ ), forming a so-called parallel link mechanism.

Pinch roller 129 of the material pressing device 17
The force to press down the plate material from above is exerted by the weight of the material holding device 17, and the pinch rollers 129 on both left and right sides of the deburring wheel 7 are always in contact with the belt conveyor 15. . The vertical movement of the material holding device 17 follows the vertical movement of the belt conveyor 15, and the pinch rollers 129 on both the left and right sides of the deburring wheel 7 are moved in synchronization and parallel to the deburring wheel 7. Move up and down.

In the pinch roller 129, the small-diameter pinch roller 127 has a small diameter, so it can press the plate as close as possible to the deburring wheel 7, and the large-diameter pinch roller 125 can easily press the plate even if it is a relatively thick plate. It is something that can be climbed. That is, the pinch roller 129 can press the plate material as close as possible to the deburring wheel 7, and can also easily ride on various plate thicknesses.

A bracket 147 (see FIG. 8) for fixing the table 13 is provided on the rear side of the frame 3, and a bolt 149 is screwed into a screw hole 151 of the table 13 through a bolt hole in the bracket 147. By doing so, the table 13 is fixed.

In the above configuration, when the plate material to be deburred is fed onto the belt conveyor 15 on the table 13 after driving each rotating part, the plate material comes into contact with the large diameter pinch roller 127 of the pinch roller 129 of the material pressing device 17. Therefore, large diameter,
The small diameter pinch rollers 127, 125 easily ride on the plate and press the plate. Therefore, while the plate material is being pressed by the pinch rollers 129 and being transferred, it is deburred by the deburring wheel 7 that rotates at high speed while moving back and forth.

The deburring wheel 7 is supported at both ends by flanges 23 attached to both ends of the wheel shaft 21, and is supported near the center by a collection chuck 27, thereby preventing the deburring wheel 7 from deflecting. Therefore, deburring can be performed uniformly at any position over the entire width of the deburring wheel 7.

The deburring wheel 7 also has a clevis 65 that moves vertically and longitudinally by the rotation of an eccentric shaft 67 via a rod 61 connected to a multistage pulley 41 fixed to the other end of the wheel shaft 21. Since the deburring wheel 7 is connected to the deburring wheel 7, the deburring wheel 7 rotates at high speed while moving back and forth, and can remove burrs from all directions of the plate material.

Further, the material pressing device 17 includes a first link 1
33 and a second link 141, the gate-shaped arm 1 is supported in a vertically movable manner.
Pinch rollers 129 are installed at the lower ends of both left and right sides of 23.
are arranged symmetrically and rotatably supported,
The force with which the plate material is pressed down from above by the pinch roller 129 is always constant because it is exerted by the weight of the material pressing device 17. The vertical movement of the material holding device 17 follows the vertical movement of the belt conveyor 15, and the pinch rollers 129 on both the left and right sides of the deburring wheel 7 move up and down synchronously and parallel to the deburring wheel 7. Therefore, even when a narrow plate material is fed, the pinch roller 129 does not hit unevenly, and it is therefore possible to prevent the plate material from meandering.

In addition, since the small diameter pinch roller 127 of the pinch roller 29 presses the plate as close as possible to the deburring wheel 7, the pressing effect on the plate is large, and the large diameter pinch roller 125 is located on the outside. Therefore, even if it is a thick plate, it can be easily climbed over.

Further, according to this embodiment, when replacing the belt conveyor 15 of the table 13, the table 13 is fixed to the bracket 147 with bolts 149, and then the front adjustment screw 91 is fixed to the table 13. bolt 95
The belt conveyor 15 can be replaced by removing the spacer 93 and replacing the belt conveyor 15 through the gap left after the spacer 93 is removed.

As can be understood from the above description of the embodiments, in short, the present invention is such that the lower frame 9 of the frame 3 is equipped with a table 13 that supports a conveyor 15 for transferring the plate material in the left and right direction, and the frame 3 In the upper frame 5 of
A deburring wheel 7 for deburring the plate material transferred by the conveyor 15 is rotatably provided, and pinch rollers 129 are provided at positions on both left and right sides of the deburring wheel 7 for pressing the plate material against the conveyor 15. In the deburring device, the pinch roller 129 includes a large diameter pinch roller 125 and a large diameter pinch roller 125.
and a small-diameter pinch roller 127 located between the deburring wheel 7 and the deburring wheel 7, and an arm 123 supporting the pinch roller 129 is provided so as to be vertically movably supported on the upper frame 5 via a parallel link mechanism. Adjustment screws 91 supporting the table 13 are screwed into each guide nut 89, which is provided so as to be able to descend freely under its own weight, and which is rotatably mounted at a plurality of locations on the lower frame 9 so as to be vertically movable. guide nut 89
are provided so as to be freely interlocked, and a guide nut 89 is provided as appropriate.
A worm wheel 99 attached to the lower frame 9 meshes with a worm 103 rotatably supported by the lower frame 9.

As is clear from the above structure, the pinch roller 129 has a large-diameter pinch roller 125 on the outside and a small-diameter pinch roller 127 on the inside. , the plate material can be pressed at a position as close as possible to the processing position. Furthermore, the large-diameter pinch roller 125 can easily ride on even thick plates, and the plate material can be reliably pressed. Also pinch roller 1
Since the arm 123 that supports the pinch roller 129 is supported so as to be able to move up and down via a parallel link mechanism, the pinch roller 129 is always kept horizontal while being moved up and down, and the meandering of the plate material due to uneven contact is prevented. It is something that can be prevented.

In addition, since the arm 123 can be lowered by its own weight, the pressing force of the plate material against the conveyor 15 is always constant and never exceeds the weight of the arm 123, so there is no problem that the pressing force becomes excessive. There is no such thing.

Furthermore, the vertical movement of the table 13 is achieved by a screw mechanism using a guide nut 89 and an adjuster screw 91, and the structure for rotating the guide nut 89 is a worm gear mechanism in which a worm 103 is meshed with a worm wheel 99 attached to the guide nut 89. This is due to Therefore,
Due to the action of the screw mechanism and worm gear mechanism, the table 13 can be locked without any special locking device etc.
The table 13 does not naturally descend due to its own weight, vibration, etc., and the height position of the table 13 can be easily adjusted, and it is also easy to fix and hold the table 13 at the adjusted position.

It should be noted that this invention is not limited to the embodiments described above, and by making appropriate changes, the invention can be implemented in modes other than the embodiments described above.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIGS. 1, 2, and 3 are a front view, a side view, and a rear view of the deburring device, and FIG. 4 is a side view of the main parts. An enlarged cross-sectional view, Fig. 5 is an enlarged front view of the main part, Fig. 6 is a plan view of the main part, Fig. 7 is a front sectional view of the main part,
FIG. 8 is a side sectional view of the main part. Explanation of symbols representing main parts of the drawings, 13...
Table, 15... Belt conveyor, 7... Deburring wheel, 21... Wheel shaft, 89... Guide nut, 91... Adjustment screw, 99... Worm wheel, 103... Worm, 123... Arm, 125... Large diameter pinch roller, 127 ...Small diameter pinch roller, 129...Pinch roller.

Claims (1)

[Claims] 1 A table 13 supporting a conveyor 15 for transferring plate materials in the left-right direction is attached to the lower frame 9 of the frame 3, and a burr of the plate materials transferred by the conveyor 15 is attached to the upper frame 5 of the frame 3. A deburring device is provided with a deburring wheel 7 that is rotatable, and a pinch roller 129 that presses the plate material against the conveyor 15 at both left and right side positions of the deburring wheel 7, and the pinch roller 129 is It is equipped with a large diameter pinch roller 125 and a small diameter pinch roller 127 located between the large diameter pinch roller 125 and the deburring wheel 7. Each adjusting screw, which supports the table 13, is attached to each guide nut 89, which is supported on the upper frame 5 so as to be vertically movable, and is also provided so as to be freely lowered by its own weight, and is rotatably mounted at a plurality of locations on the lower frame 9. 91 is screwed in to be able to move up and down, each guide nut 89 is provided to be able to interlock with each other, and a worm wheel 99 that is attached to the guide nut 89 as appropriate is engaged with a worm 103 that is rotatably supported on the lower frame 9. A deburring device featuring: