JP4337808B2 - Snap ring mounting device - Google Patents

Description

  The present invention relates to a snap ring mounting device, and more particularly, to a snap ring mounting device used when a first work and a second work are coupled using a snap ring.

As a jig used when joining two members using a snap ring, a jig having a snap ring pushing portion for pushing a snap ring in a reduced diameter state inserted into an inner surface portion of one member has been proposed. (For example, refer to Patent Document 1). When joining two members using this jig, insert the end of the other member and the snap ring in the reduced diameter state into the insertion part of one member, and snap using the jig in this state. One member and the other member are joined by pushing the ring and dropping the snap ring into the ring groove of one member.
JP 7-205044 A

  In the jig described above, the snap ring is pushed into one member with a reduced diameter, and therefore, a frictional force is generated between the outer peripheral surface of the snap ring and the inner peripheral surface of the one member. There are cases where the reduced diameter state is released or it takes time to push in. In addition, when there is only a small working space for joining two members, high precision is required for joining by the snap ring, and the work takes time.

  The snap ring mounting device of the present invention has an object to make it easier to connect the first workpiece and the second workpiece by the snap ring. Another object of the snap ring attachment device of the present invention is to enable quick coupling of the first workpiece and the second workpiece by the snap ring.

  The snap ring attachment device of the present invention employs the following means in order to achieve at least one of the above-mentioned objects.

The snap ring mounting device of the present invention comprises:
An apparatus for attaching a snap ring used when connecting a first work and a second work using a snap ring,
A placing slide means capable of sliding in a predetermined direction with the first workpiece placed;
The placement slide means is slid in the predetermined direction in a state where the first work is placed on the placement slide means and a snap ring is disposed on the placed first work. Snap ring positioning means for positioning the snap ring at least in contact with the snap ring;
Snap ring squeezing means for squeezing the snap ring in a state in which the snap ring positioning means is positioned;
It is a summary to provide.

  In the snap ring mounting device of the present invention, the first work is placed on the placement slide means, the snap ring is disposed on the first work, and the placement slide means is slid in a predetermined direction in this state. Positioning of the snap ring on the first workpiece is performed by the snap ring positioning means. In this state, the snap ring is squeezed by the snap ring squeezing means, the second work is placed on the first work, the snap ring squeezing by the snap ring squeezing means is released, and the first work and the second work are released. Combine with other workpieces. In this way, the first work can be placed and the snap ring can be positioned in the first work by simply placing the snap ring on the placed first work and sliding it in a predetermined direction. In this state, the first work and the second work can be joined by disposing the second work in a state where the snap ring is squeezed by the snap ring squeezing means and releasing the squeezing of the snap ring. That is, the first workpiece and the second workpiece can be easily and quickly joined by the snap ring.

  In such a snap ring mounting device of the present invention, the placing slide means may be a means having a positioning portion for placing the first workpiece. If it carries out like this, a 1st workpiece | work can be mounted on a mounting slide means rapidly and easily.

  In the snap ring attachment device of the present invention, the snap ring throttling means may be a means capable of holding the snap ring in a narrowed state. If it carries out like this, arrangement | positioning of a 2nd workpiece | work can be performed more easily. As a result, the first workpiece and the second workpiece can be more easily connected by the snap ring.

  Furthermore, in the snap ring attachment device of the present invention, the snap ring restricting means is means arranged on the mounting slide means so as to be slidable in the predetermined direction with respect to the mounting slide means. You can also. By so doing, it is possible to squeeze the snap ring while sliding the snap ring squeezing means in a predetermined direction with respect to the mounting slide means.

  Alternatively, in the snap ring mounting device according to the present invention, the first workpiece is formed with a first coupling portion coupled to the second workpiece by the snap ring at a predetermined position on an outer periphery. When the first workpiece of the first workpiece is overlapped so as to cover the outer periphery, the first ring is positioned by the snap ring at a position aligned with the first connector on the inner periphery. A second coupling part coupled to the coupling part may be formed.

  Next, the best mode for carrying out the present invention will be described using examples.

  FIG. 1 is a top view of a snap ring mounting device 20 used when two workpieces (first workpiece, second workpiece) 10 and 15 are coupled using a snap ring 19 as an embodiment of the present invention. 2 is an AA view of the snap ring attachment device 20 of FIG. 1 as viewed from the AA plane. 3 is a perspective view showing the external appearance of the first workpiece 10, FIG. 4 is an AA view of the first workpiece 10 as seen from the AA plane, and FIG. FIG. 6 is an AA view of the second work 15 as viewed from the AA plane, FIG. 7 is an external view showing the appearance of the snap ring 19, and FIG. It is explanatory drawing which shows the mode of the coupling | bonding of the workpiece | work 10 and the 2nd workpiece | work 15 by the snap ring 19. FIG. In FIG. 8, the snap ring 19 is hatched for ease of viewing. Hereinafter, for ease of explanation, first, the first workpiece 10 and the second workpiece 15 will be briefly described, and then the snap ring mounting device 20 will be described.

  As shown in FIGS. 3 and 4, the first workpiece 10 is provided in a cylindrical portion 11 formed in a substantially cylindrical shape with an outer diameter R <b> 1 and an upper portion (upper portion in FIGS. 3 and 4) of the cylindrical portion 11. And an upper end portion 12 formed in a cylindrical shape having an outer diameter R2 smaller than the outer diameter R1. The outer diameter R3 is located outside the upper end portion 12 at a distance L1 from the upper surface of the cylindrical portion 11 to the upper end portion 12 side. A groove (hereinafter referred to as the coupling portion 13) is formed so as to be smaller than the diameter R2 by the width WS of the snap ring 19 (see FIG. 7). As shown in FIGS. 5 and 6, the second work 15 is formed in a cylindrical shape having an inner diameter R4 that is slightly larger than the outer diameter R2 of the upper end 12 of the first work 10, and the lower end of the inner peripheral surface. A groove shallower than the width WS of the snap ring 19 (hereinafter referred to as a coupling portion 16) is formed at a distance L1 from the (lower end portion in FIG. 6), and at two locations (opposing positions) on the lower end portion. A rectangular notch 17 having a height H1 higher than the height corresponding to the distance L1 and a width W1 is formed. As shown in FIG. 7, the snap ring 19 is formed so that its outer diameter R5 is larger than the inner diameter R4 of the second workpiece 15. As shown in FIG. 8, the first workpiece 10 and the second workpiece 15 are formed by fitting the snap ring 19 into the coupling portion 13 of the first workpiece 1 and the coupling portion 16 of the second workpiece 15. Combined.

  As shown in FIGS. 1 and 2, the snap ring mounting device 20 of the embodiment has a mounting slide portion 30 that can slide on a rail 24 laid on a base 22 in a state where the first workpiece 10 is mounted. The first work 10 is placed on the placement slide part 30 and the placement slide part 30 is placed in the state where the snap ring 19 is placed on the upper surface of the cylindrical part 11 of the first work 10 as shown in FIG. A snap ring positioning portion 40 that contacts the snap ring 19 when it is slid rightward in FIG. 2 to position the snap ring 19 on the first workpiece 10, and a rail 38 laid on the mounting slide portion 30. Snap ring stop holder that can slide and hold the snap ring 19 positioned by the snap ring positioning part 40 while holding down Including 0 and, the.

  The mounting slide portion 30 has a positioning portion 32 for mounting the first workpiece 10 and has a positioning portion 32 that can slide on a rail 24 laid on the base 22 in a direction to approach and separate from the snap ring positioning portion 40. And a fixing part 34 for fixing the first workpiece 10 placed on the positioning part 32, and a handle 36 for the operator to slide the pedestal 31.

  The snap ring positioning portion 40 is formed in a rectangular plate shape having a width W2 narrower than the width W1 of the cutout portion 17 and a thickness D1 corresponding to the distance L1, and is positioned on the positioning slide 32 side of the mounting slide portion 30. The height H2 from the upper surface of the substrate 22 is the sum of the height H3 from the upper surface of the substrate 22 to the upper surface of the positioning portion 32 and the height H4 of the cylindrical portion 11 of the first workpiece 10. It is arranged as follows. Accordingly, the first workpiece 10 is placed on the positioning portion 32 of the placement slide portion 30 and the snap ring 19 is placed on the upper surface of the cylindrical portion 11 of the first workpiece 10 on the side opposite to the snap ring positioning portion 40 side. When the mounting slide portion 30 slides toward the snap ring positioning portion 40 with the snap ring 19 placed so that the open end comes, the snap ring 19 comes into contact with the snap ring positioning portion 40 and is scooped up. Is positioned. FIG. 9 shows a top view of the snap ring attachment device 20 at this time, and FIG. 10 shows an AA view of the snap ring attachment device 20 of FIG.

  The snap ring aperture holder 50 includes a pedestal 52 that is slidable on a rail 38 that is laid in the direction of approaching and separating from the positioning portion 32 on the side opposite to the positioning portion 32 side on the pedestal 31 of the mounting slide portion 30; A toggle 56 that can be operated in the left-right direction in FIGS. 1 and 2 to slide the pedestal 52 and draw an arc, and the operation of the toggle 56 in the arc-direction is converted into a force in the left-right direction in FIGS. 1 and 2. The direction changing mechanism 57 for transmitting to the position 58 and the height H5 from the upper surface of the positioning portion 32 are arranged at a position where the height H4 of the cylindrical portion 11 of the first workpiece 10 is squeezed and the snap ring 19 is squeezed or released. And a clamp part 54 that opens and closes for the purpose (for example, the tip of a radio pliers or the like can be used), and a clamp 58 that moves in the left direction in FIGS. Having a closing mechanism 55 to widen the clamping portion 54 with the movement of the shaft 58 to 1 and 2 in the right direction with narrowing the section 54. The operator grasps the toggle 56 with the snap ring 19 positioned by the snap ring positioning portion 40 and slides the pedestal 52 toward the positioning portion 32, and the tip of the clamp portion 54 is caught by the open end of the snap ring 19. Sometimes, the snap ring 19 can be narrowed by operating the toggle 56 in the right direction in FIGS. 1 and 2 (see the dotted line in FIG. 2). The state of the snap ring attachment device 20 at this time is shown in FIG. In this state, even if the operator releases his hand from the toggle 56, the state in which the snap ring 19 is squeezed is maintained.

  Next, the operation when the first work 10 and the second work 15 are coupled by the snap ring 19 using the snap ring mounting device 20 thus configured will be described. First, the first workpiece 10 is placed on the positioning portion 32 of the placement slide portion 30 and the snap ring 19 is placed on the upper surface of the cylindrical portion 11 of the first workpiece 10, and the placement slide portion 30 in that state. The base 31 is slid toward the snap ring positioning portion 40, and the snap ring 19 is positioned by the snap ring positioning portion 40. The situation at this time is shown in FIGS. 9 and 10 described above. In this state, the pedestal 52 of the snap ring aperture holder 50 is slid toward the positioning unit 32 so that the tip of the clamp portion 54 is hooked on the open end of the snap ring 19, and the snap ring 19 is squeezed in this state. The situation at this time is shown in FIG. At this time, the snap ring 19 is in a state of being almost completely fitted into the coupling portion 13 of the first workpiece 10. Next, on the upper surface of the cylindrical portion 11 of the first workpiece 10, the notch portion 17 of the second workpiece 15 covers the snap ring positioning portion 40 and the snap ring aperture so as to cover the coupling portion 13 of the first workpiece 10. The second workpiece 15 is placed so as to be aligned with the clamp portion 54 of the holding portion 50, and in this state, the restriction of the snap ring 19 is released, so that the coupling portion 13 of the first workpiece 10 and the second workpiece 15 are released. A snap ring 19 is fitted into the 15 coupling portions 16 to couple the first workpiece 10 and the second workpiece 15 together. It should be noted that a part of the snap ring 19 may be caught on the edge of the coupling portion 16 of the second workpiece 15 when the throttling of the snap ring 19 is released. In this case, the notch of the second workpiece 15 is notched. The snap ring 19 can be fitted into the coupling portion 13 of the first workpiece 10 and the coupling portion 16 of the second workpiece 15 by slightly moving the snap ring 19 by the portion 17.

  According to the snap ring mounting device 20 of the embodiment described above, the first work 10 is placed, and the snap ring 19 is disposed with respect to the first work 10 to slide the slide placement portion 30. In this state, the snap ring 19 can be positioned on the first workpiece 10, and in this state, the snap ring 19 is squeezed by the snap ring throttle holding portion 40 and the second workpiece 15 is arranged with respect to the first workpiece 10. Since the first workpiece 10 and the second workpiece 15 can be coupled by releasing the restriction of the snap ring 19, the coupling of the first workpiece 10 and the second workpiece 15 by the snap ring 19 is performed. It can be done easily and quickly.

  Further, according to the snap ring attachment device 20 of the embodiment, the mounting slide unit 30 includes the positioning unit 32, so that the first workpiece 10 can be mounted on the mounting slide unit 30 easily and quickly. Can do.

  Furthermore, according to the snap ring attachment device 20 of the embodiment, the snap ring diaphragm holding portion 50 can hold the snap ring 19 in a narrowed state. 15 can be easily arranged.

  In the snap ring attachment device 20 of the embodiment, the mounting slide portion 30 has the positioning portion 32, but may not have the positioning portion 32.

  In the snap ring mounting device 20 according to the embodiment, the snap ring throttle holding portion 50 is configured to be capable of holding the snap ring 19 in a narrowed state. It is also possible to use one that cannot be held in a squeezed state. In this case, when the second workpiece 15 is arranged with respect to the first workpiece 10, the operator may arrange the second workpiece 15 while narrowing and holding the snap ring 19.

  In the snap ring mounting device 20 of the embodiment, the snap ring diaphragm holding portion 50 is arranged on the placement slide portion 30 so as to be slidable in the direction of approaching and separating from the positioning portion 32. It may be arranged on the slide part 30.

  The best mode for carrying out the present invention has been described with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the gist of the present invention. Of course, it can be implemented in the form.

  The present invention can be used in the manufacturing industry of a snap ring attachment device.

1 is a top view of a snap ring mounting device 20 as one embodiment of the present invention. FIG. It is the AA view which looked at the snap ring attachment apparatus 20 of FIG. 1 from the AA surface. 2 is a perspective view showing an appearance of a first workpiece 10. FIG. It is the AA view which looked at the 1st workpiece | work 10 of FIG. 3 from the AA surface. 3 is a perspective view showing an appearance of a second workpiece 15. FIG. It is the AA view which looked at the 2nd workpiece | work 15 of FIG. 5 from the AA surface. It is an external view which shows the external appearance of a snap ring. It is explanatory drawing which shows the mode of the coupling | bonding by the snap ring 19 of the 1st workpiece | work 10 and the 2nd workpiece | work 15. FIG. It is explanatory drawing which shows the mode of the snap ring attachment apparatus 20 at the time of positioning the snap ring 19. FIG. It is the AA view which looked at the snap ring attachment apparatus 20 of FIG. 9 from the AA surface. It is explanatory drawing which shows the mode of the snap ring attachment apparatus 20 when the snap ring 19 is restrict | squeezed by the snap ring stop holding | maintenance part 50. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 1st workpiece | work, 11 cylindrical part, 12 upper end part, 13 coupling | bond part, 15 2nd workpiece | work, 16 coupling | bond part, 17 notch part, 19 snap ring, 20 snap ring attachment apparatus, 22 base | substrate, 24 rail, 30 mounting slide part, 32 positioning part, 36 handle, 38 rail, 40 snap ring positioning part, 50 snap ring throttle holding part, 52 pedestal, 54 clamp part, 55 opening / closing mechanism, 56 toggle, 57 direction changing mechanism.

Claims (5)

An apparatus for attaching a snap ring used when connecting a first work and a second work using a snap ring,
A placing slide means capable of sliding in a predetermined direction with the first workpiece placed;
The placement slide means is slid in the predetermined direction in a state where the first work is placed on the placement slide means and a snap ring is disposed on the placed first work. Snap ring positioning means for positioning the snap ring at least in contact with the snap ring;
Snap ring squeezing means for squeezing the snap ring in a state in which the snap ring positioning means is positioned;
A snap ring mounting device comprising:   2. The snap ring mounting device according to claim 1, wherein the placing slide means is a means having a positioning portion for placing the first workpiece.   The snap ring attachment device according to claim 1 or 2, wherein the snap ring throttle means is a means capable of holding the snap ring in a narrowed state.   4. The snap ring attachment device according to claim 1, wherein the snap ring restricting means is means arranged on the mounting slide means so as to be slidable in the predetermined direction with respect to the mounting slide means. A snap ring mounting device according to any one of claims 1 to 4,
The first workpiece is formed with a first coupling portion coupled to the second workpiece by the snap ring at a predetermined position on the outer periphery,
When the second workpiece is overlapped so as to cover the first coupling portion of the first workpiece from the outer peripheral side, the second workpiece is aligned with the first coupling portion on the inner peripheral side by the snap ring. A second coupling portion coupled to the first coupling portion is formed;
Snap ring mounting device.

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