Mounting mechanism for snap spring for hole

Abstract

The invention relates to the technical field of assembly equipment, and discloses a hole clamp spring mounting mechanism which comprises an assembly shell, a hollow groove is reserved in the middle of the assembly shell and used for mounting a clamp spring material column, and the periphery of the clamp spring material column is sequentially sleeved with a plurality of clamp springs; a material pushing handle is arranged at the upper end of the assembly shell and located on one side of the hollow groove, a material pushing plate is arranged at the bottom of the material pushing handle, and the material pushing plate is limited and guided by a limiting guide groove formed in the upper end of the assembly shell; a clamping spring compression groove is further formed in the position, located on the other side of the hollow groove, of the upper end of the assembling shell, and the clamping spring in the moving process is compressed through the clamping spring compression groove. A material taking station is arranged on the assembly shell and located on the other side of the clamp spring compression groove, and the material taking station is further provided with a material taking assembly used in cooperation with the material taking station. By means of the clamp spring assembling device, the labor intensity of technicians is reduced, and the clamp spring assembling efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of assembly equipment technology, and specifically relates to a hole retaining ring mounting mechanism. Background Technology

[0002] A retaining circlip is a mechanical component used to secure shaft parts and prevent them from moving axially. For rapid, mass production of large-diameter retaining circlips, manual installation is often employed. During installation, technicians hold retaining circlip pliers and apply force to clamp the circlip, causing it to contract radially, reducing its diameter. The pliers then place the circlip into a pre-machined slot, thus completing the installation.

[0003] The installation of the aforementioned hole retaining rings is done manually. To achieve coordinated operation of steps such as compression, alignment, and pushing in of the retaining rings, on the one hand, skilled technicians are required, and the labor intensity is high. In the case of mass production, manual installation is inefficient. On the other hand, the cost of using special equipment is too high, making it difficult to achieve a balance between cost, efficiency, and labor intensity. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention aims to provide a hole-mounted snap ring mounting mechanism, which reduces the labor intensity of technicians and greatly improves the assembly efficiency of snap rings.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A hole-mounted snap ring mounting mechanism includes an assembly housing, a hollow groove reserved in the middle of the assembly housing for mounting snap ring posts, and a plurality of snap rings sequentially sleeved on the outer periphery of the snap ring posts. A pusher handle is provided on one side of the hollow groove at the upper end of the assembly housing. A pusher plate is provided at the bottom of the pusher handle. The pusher plate is limited and guided by a limiting guide groove at the upper end of the assembly housing. On the other side of the hollow groove, a retaining ring compression groove is also provided at the upper end of the assembly housing, through which the retaining ring is compressed during the movement; On the other side of the snap ring compression groove, there is a material picking station on the assembly housing, and the material picking station is also equipped with a material picking component for use therewith.

[0006] Optionally, the retaining spring post includes a fixed shaft, a retaining ring, a first return spring, and a plunger. The fixed shaft is installed inside the assembly housing, the retaining ring is sleeved on the fixed shaft, the first return spring is sleeved on the fixed shaft and located below the retaining ring, and the retaining spring is located above the retaining ring. The two plungers are symmetrically installed on both sides of the assembly housing to fix the retaining ring during feeding.

[0007] Furthermore, the shape of the contact point between the pusher plate and the snap ring is adapted to the shape of the snap ring opening, so that the pusher handle can drive the pusher plate to move left and right along the limiting guide groove under the action of external force, which is used to push the snap ring that has been removed from the snap ring material column to the material picking station.

[0008] Furthermore, a material changing cover is provided on the assembly housing above the hollow groove, and the material changing cover is installed on the assembly housing by fasteners on the side near the material picking station.

[0009] Optionally, a snap ring compression groove is also provided on the upper end of the assembly housing on the other side of the hollow groove. The snap ring compression groove and the movement path of the uppermost snap ring on the snap ring column after being extruded by the pusher plate are both located on the same horizontal plane.

[0010] Optionally, the material receiving station includes a material receiving post provided inside the assembly housing and a second return spring sleeved on the outside of the material receiving post and connected thereto. The upper end of the material receiving post is used to receive the snap ring after it is compressed from the snap ring compression groove. A circular ring is sleeved on the upper end of the material receiving post and connected to it by the second return spring, so that the circular ring can move up and down on the material receiving post.

[0011] Furthermore, the upper end of the assembly housing is provided with a groove that matches the shape of a circular ring, and four limiting pieces are symmetrically arranged around the circumference at the groove.

[0012] Optionally, the material handling assembly includes a fixed sleeve, a top-loading shaft, a top-loading connecting rod, a top rod, a snap ring pin, and a third return spring. The fixing sleeve has an inner cavity, and an annular protrusion is provided near the lower part of the inner cavity, thereby forming two first annular step surfaces and a second annular step surface with similar diameters in the inner cavity of the fixing sleeve. The top material shaft also has an inner cavity, which is fastened into the inner cavity of the fixed sleeve. The bottom of the top material shaft is located above the first annular step surface. The top material connecting rod is installed in the inner cavity of the top material shaft. The upper end of the top material connecting rod is connected to the top material shaft by a fastener. The lower end of the top material connecting rod is connected to a circular limiting block by a fastener. The circular limiting block is locked at the lower end of the second annular step surface. The third reset spring is sleeved on the outer periphery of the top material connecting rod and located in the inner cavity of the top material shaft; the top rod is vertically embedded in the hole provided at the bottom of the top material shaft, and the end of the top rod penetrates through the bottom of the fixing sleeve; a retaining pin is installed at the bottom of the fixing sleeve, and the position and shape of the retaining pin are adapted to the retaining hole on the retaining spring.

[0013] Furthermore, the end of the fixed sleeve that connects with the material handling station has a contoured groove that matches the shape of the retaining spring.

[0014] Furthermore, a connecting plate is also installed on the lower outer side of the fixing sleeve. The connecting plate is provided with a positioning hole, which is used to cooperate with the positioning pin provided on the assembly housing.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention enables coordinated operation of steps such as compression, alignment, and insertion of the retaining ring, reducing the workload of technicians and improving the assembly efficiency of the retaining ring. This invention has a compact structure, is easy to manufacture, has low cost, and improves economic efficiency. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of the snap ring feed post and the material handling station of the present invention; Figure 4 This is a cross-sectional view of the snap ring post of the present invention; Figure 5 This is a schematic diagram of the fixed shaft structure of the snap ring feed post of the present invention; Figure 6 This is a schematic diagram of the material receiving column structure of the material receiving station of the present invention; Figure 7 This is a schematic diagram of the circular ring structure of the material handling station of the present invention; Figure 8 This is a cross-sectional view of the material handling station of the present invention. Figure 1 ; Figure 9 This is a cross-sectional view of the material handling station of the present invention. Figure 2 ; Figure 10 This is a cross-sectional view of the fixing sleeve of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Assembly housing; 2. Hollow groove; 3. Snap ring material column; 3.1. Fixed shaft; 3.2. Snap ring; 3.3. First return spring; 3.4. Plunger; 4. Snap ring; 5. Push handle; 6. Limiting guide groove; 7. Material changing cover plate; 8. Snap ring compression groove; 9. Material picking station; 10. Material picking receiving column; 11. Second return spring; 12. Circular ring; 13. Limiting piece; 14. Material picking assembly; 15. Fastener; 16. Fixed sleeve; 16.1. First annular stepped surface; 16.2. Second annular stepped surface; 16.3. Contouring groove; 17. Ejector shaft; 18. Ejector connecting rod; 18.1. Circular limiting block; 19. Limiting block; 20. Ejector rod; 21. Snap ring pin; 22. Third return spring; 23. Positioning pin; 24. Connecting plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0019] like Figures 1 to 10 As shown, the present invention provides a retaining ring mounting mechanism for holes, including an assembly housing 1. A hollow groove 2 is reserved at approximately the center of the assembly housing 1 for mounting retaining ring posts 3. Specifically, the retaining ring post 3 includes a fixed shaft 3.1, a retaining ring 3.2, a first return spring 3.3, and plungers 3.4. The fixed shaft 3.1 is fixedly installed inside the assembly housing 1. The retaining ring 3.2 is sleeved on the fixed shaft 3.1 and can move up and down. The first return spring 3.3 is sleeved on the fixed shaft 3.1 and located below the retaining ring 3.2 to support the retaining ring 3.2. Two plungers 3.4 are symmetrically installed on both sides of the assembly housing 1 to fix the retaining ring 3.2 during loading. A plurality of retaining rings 4 are sequentially sleeved on the outer circumference of the fixed shaft 3.1, with the retaining rings 4 located above the retaining ring 3.2. A retaining ring 4 is located on one side of the hollow groove 2 at the upper end of the assembly housing 1. The pusher handle 5 has a pusher plate 5.1 at its bottom. The pusher plate 5.1 is limited and guided by the limiting guide groove 6 at the upper end of the assembly housing 1. The shape of the contact point between the pusher plate 5.1 and the snap ring 4 is adapted to the shape of the snap ring opening, so that the pusher handle 5 can drive the pusher plate 5.1 to move left and right along the limiting guide groove 6 under the action of external force. This is used to push the snap ring 4 that has been dislodged from the fixed shaft 3.1 to the material picking station 9. At the same time, when pushing the uppermost snap ring 4, the pusher plate 5.1 abuts against the fixed shaft 3.1, so that the other snap rings 4 on the fixed shaft 3.1 will not dislodge from the fixed shaft 3.1.

[0020] In this invention, a material changing cover 7 is provided above the hollow groove 2 in the middle of the assembly housing 1. The material changing cover 7 is connected to the limiting guide groove 6 by a hinge or other means to prevent the material changing cover 7 from falling off during material loading, making it convenient for personnel to load materials. The material changing cover 7 is fixed to the assembly housing 1 by fasteners 15 on the side of the material changing cover 7 near the material picking station 9. When the snap ring 4 is loaded, the fasteners 15 are loosened, and the material changing cover 7 can be opened to facilitate the loading of the snap ring 4. After the material is loaded, the material changing cover 7 is fixed again to press down the snap ring 4 and the limiting guide groove 6. On the other side of the hollow groove 2, at the upper end of the assembly housing 1, there is also a snap ring compression groove 8. The snap ring compression groove 8 and the movement path of the uppermost snap ring 4 on the snap ring material column 3 after being squeezed out by the pusher plate 5.1 are all on the same horizontal plane.

[0021] In this invention, the snap ring 4 is pre-installed on the fixed shaft 3.1 manually. The material changing cover 7 is opened, the snap ring post 3 is assembled on the assembly housing 1, and the material changing cover 7 is closed. The pusher handle 5 is pushed, and the pusher plate 5.1 pushes the uppermost snap ring 4, which has detached from the fixed shaft 3.1, to the snap ring compression groove 8. When passing through the snap ring compression groove 8, it will be compressed to the size it was installed in. The remaining snap rings 4 on the fixed shaft 3.1 will not detach from the fixed shaft 3.1 due to the action of the pusher plate 5.1. When the uppermost snap ring 4 is sent to the material picking station 9, the pusher arm 5 is pushed back into the limiting guide groove 6. The remaining snap rings 4 on the fixed shaft 3.1 will continue to rise under the elastic force of the first return spring 3.3.

[0022] In this invention, a material-receiving station 9 is provided on the assembly housing 1 on the other side of the snap ring compression groove 8. The material-receiving station 9 includes a material-receiving receiving post 10 provided inside the assembly housing 1 and a second return spring 11 sleeved on the outside of the material-receiving receiving post 10 and connected to it. The upper end of the material-receiving receiving post 10 is used to receive the snap ring 4 after it is compressed from the snap ring compression groove 8. A circular ring 12 is sleeved on the upper end of the material-receiving receiving post 10 and connected to it by the second return spring 11, so that the circular ring 12 can move up and down on the material-receiving receiving post 10. In addition, a contoured groove 16.3 with a similar shape to the lower end of the fixed sleeve 16 is provided at the docking point between the circular ring 12 and the material-receiving assembly 14. The assembly housing 1 has a slot at its upper end that matches the shape of the circular ring 12. The upper end of the material receiving post 10 is used to receive the snap ring 4 compressed from the snap ring compression groove 8. Simultaneously, four limiting pieces 13 are symmetrically arranged around the circumference of this slot. The four limiting pieces 13 are made of thin steel sheets, are relatively thin, and have a certain degree of elasticity. They will bend under certain force to facilitate the transfer of the snap ring 4. The four limiting pieces 13 are installed on the upper surface of the assembly housing 1 by fasteners 15. Before material removal, the circular ring 12 is higher than the material receiving post 10 by the thickness of the snap ring 4. Because the four limiting pieces 13 are above the circular ring 12, the snap ring 4 can be confined within the circular ring 12. At the same time, a positioning pin 23 is installed on the assembly housing 1. The positioning pin 23 is located near the two outermost limiting pieces 13 and is used to engage with the positioning holes on the material receiving assembly 14.

[0023] In this invention, a material handling assembly 14 is also provided for use with the material handling station 9. The material handling assembly 14 includes a fixed sleeve 16, a top material shaft 17, a top material connecting rod 18, a limiting block 19, a top rod 20, a snap ring pin 21, a third return spring 22, a positioning pin 23, and a connecting plate 24. The fixed sleeve 16 has an inner cavity, and an annular protrusion is provided near the lower part of the inner cavity, thereby forming two first annular stepped surfaces 16.1 and second annular stepped surfaces 16.2 with similar diameters in the inner cavity of the fixed sleeve 16. A limiting piece is also provided at the bottom of the fixed sleeve 16 to avoid obstruction. The groove prevents the limiting piece 13 from being pressed down during downward pressure; the top material shaft 17 also has an internal cavity, which is fastened into the internal cavity of the fixed sleeve 16. The bottom of the top material shaft 17 is located above the first annular step surface 16.1, and a limiting block 19 is installed at the upper end of the first annular step surface 16.1; the end of the fixed sleeve 16 that connects with the material picking station 9 has a contoured groove 16.3, which is adapted to the shape of the snap ring 4, and the contoured groove 16.3 at the lower end of the fixed sleeve 16 is slightly larger than the contoured groove at the material picking station 9, which facilitates the transfer of the snap ring 4 and allows for ventilation during the transfer process. The retaining spring 4 is fixed by its own elasticity; a connecting plate 24 is also installed on the lower outer side of the fixing sleeve 16. The connecting plate 24 is provided with positioning holes. The connecting plate 24 can be used as a reference surface. The positioning holes are used for the positioning pin 23 to cooperate; the ejector connecting rod 18 is installed in the inner cavity of the ejector shaft 17. The upper end of the ejector connecting rod 18 is connected to the ejector shaft 17 by fastener 15. The lower end of the ejector connecting rod 18 is connected to a circular limiting block 18.1 by fastener 15. The circular limiting block 18.1 is locked at the lower end of the second annular step surface 16.2; the third return spring 2 The top rod 20 is sleeved around the outer periphery of the top material connecting rod 18 and located inside the cavity of the top material shaft 17; the top rod 20 is vertically embedded and fixed in the hole provided at the bottom of the top material shaft 17, and the end of the top rod 20 can penetrate through the bottom of the fixed sleeve 16; due to the action of the third return spring 22, the top material shaft 17 can move up and down in the cavity of the fixed sleeve 16, thereby driving the top rod 20 to move up and down; a retaining pin 21 is installed at the bottom of the fixed sleeve 16, and the setting position and shape of the retaining pin 21 are adapted to the retaining hole on the retaining spring 4, so that when picking up materials, the retaining pin 21 first enters the retaining hole of the retaining spring 4.

[0024] In this invention, all fasteners 15 can be bolts and nuts.

[0025] In this invention, by adding a certain driving mechanism to the push handle 5, the picking component 14, etc., the fully automatic snap ring installation function can be realized.

[0026] The following is in conjunction with the appendix Figure 1 To be continued Figure 10 A brief description of the method of using the hole snap ring mounting mechanism provided by the present invention is as follows: The snap ring 4 is pre-installed on the snap ring post 3 by hand. The material changing cover 7 is opened, the snap ring post 3 is assembled on the assembly housing 1, and the material changing cover 7 is closed. The pusher handle 5 is pushed, and the uppermost snap ring 4, which is detached from the fixed shaft 3.1, is moved to the snap ring compression groove 8 by the pusher plate 5.1. When passing through the snap ring compression groove 8, it will be compressed to the size of the installation. Under the action of the pusher handle 5, it reaches the material picking station 9. The upper end of the material picking receiving post 10 receives the snap ring 4 after it is compressed from the snap ring compression groove 8. Before picking up the material, the circular ring 12 is higher than the material picking receiving post 10 by the thickness of the snap ring 4, and the snap ring 4 can be restricted within the circular ring 12 by four limiting pieces 13 above the circular ring 12.

[0027] When the material-picking assembly 14 is in the material-picking state, the positioning hole on the material-picking assembly 14 will cooperate with the positioning pin 23. Then, the lower end of the fixing sleeve 16 will press down on the circular ring 12 under the action of external force. The circular ring 12 will be compressed and lowered. The bottom of the fixing sleeve 16 has a limit plate relief groove to prevent it from pressing down on the limit plate 13. With the support of the material-picking receiving column 10, the snap ring 4 enters the contour groove 16.3 at the lower end of the fixing sleeve 16, and is firmly fixed to the lower end face of the fixing sleeve 16 under the action of its own elasticity. Then, the material-picking assembly 14 moves upward, driving the snap ring 4 to move upward. Due to its elasticity, the limit plate 13 bends, and the material-picking assembly 14 successfully removes the snap ring 4. After the material taking component 14 has finished taking the material, because the bottom of the fixed sleeve 16 is equipped with a snap ring pin 21, when taking the snap ring 4, the snap ring pin 21 will first enter the snap ring hole of the snap ring 4 to position the snap ring 4. At this time, the push rod 20 is in the retracted state, and the snap ring 4 is restricted by the contoured groove 16.3 at the bottom of the fixed sleeve 16 to prevent it from falling off.

[0028] When installing the retaining ring 4, the material handling assembly 14 presses down the ejector shaft 17, and then the ejector rod 20 moves downward under the action of the ejector shaft 17 until the bottom of the ejector shaft 17 contacts the limiting block 19 and stops, thereby ejecting the retaining ring 4 and achieving the purpose of installing the retaining ring. When contacting the product, the connecting plate 24 can also be used as a reference surface to ensure accurate installation of the retaining ring, and this position can be adjusted according to actual needs.

[0029] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A hole-mounted snap ring mounting mechanism, comprising an assembly housing, wherein a hollow groove is pre-reserved in the middle of the assembly housing, characterized in that, The hollow groove is used to install the snap ring column, and a number of snap rings are sequentially sleeved on the outer periphery of the snap ring column; A pusher handle is provided on one side of the hollow groove at the upper end of the assembly housing. A pusher plate is provided at the bottom of the pusher handle. The pusher plate is limited and guided by a limiting guide groove at the upper end of the assembly housing. On the other side of the hollow groove, a retaining ring compression groove is also provided at the upper end of the assembly housing, through which the retaining ring is compressed during the movement; On the other side of the snap ring compression groove, there is a material picking station on the assembly housing, and the material picking station is also equipped with a material picking component for use therewith.

2. The hole-mounting spring mounting mechanism according to claim 1, characterized in that, The retaining spring post includes a fixed shaft, a retaining ring, a first return spring, and a plunger. The fixed shaft is installed inside the assembly housing. The retaining ring is sleeved on the fixed shaft. The first return spring is sleeved on the fixed shaft and located below the retaining ring. The retaining spring is located above the retaining ring. The two plungers are symmetrically installed on both sides of the assembly housing to fix the retaining ring during feeding.

3. The hole retaining ring mounting mechanism according to claim 2, characterized in that, The shape of the contact point between the pusher plate and the snap ring is adapted to the shape of the snap ring opening, so that the pusher handle can drive the pusher plate to move left and right along the limiting guide groove under the action of external force, which is used to push the snap ring that has been removed from the snap ring material column to the material picking station.

4. The hole retaining ring mounting mechanism according to claim 2, characterized in that, A material changing cover is provided on the assembly housing above the hollow groove. The material changing cover is installed on the assembly housing by fasteners on the side near the material picking station.

5. The hole retaining ring mounting mechanism according to claim 1, characterized in that, On the other side of the hollow groove, at the upper end of the assembly housing, there is also a snap ring compression groove. The snap ring compression groove and the movement path of the uppermost snap ring on the snap ring column after being squeezed out by the pusher plate are both located on the same horizontal plane.

6. The hole retaining ring mounting mechanism according to claim 1, characterized in that, The material receiving station includes a material receiving column provided inside the assembly housing and a second return spring sleeved on the outside of the material receiving column and connected to it. The upper end of the material receiving column is used to receive the snap ring after it is compressed from the snap ring compression groove. A circular ring is sleeved on the upper end of the material receiving column and connected to it through the second return spring, so that the circular ring can move up and down on the material receiving column.

7. The hole retaining ring mounting mechanism according to claim 6, characterized in that, The upper end of the assembly housing is provided with a groove that matches the shape of a circular ring, and four limiting pieces are symmetrically arranged around the circumference of the groove.

8. The hole retaining ring mounting mechanism according to claim 1, characterized in that, The material handling assembly includes a fixed sleeve, a top material shaft, a top material connecting rod, a top rod, a retaining spring pin, and a third return spring. The fixing sleeve has an inner cavity, and an annular protrusion is provided near the lower part of the inner cavity, thereby forming two first annular step surfaces and a second annular step surface with similar diameters in the inner cavity of the fixing sleeve. The top material shaft also has an inner cavity, which is fastened into the inner cavity of the fixed sleeve. The bottom of the top material shaft is located above the first annular step surface. The top material connecting rod is installed in the inner cavity of the top material shaft. The upper end of the top material connecting rod is connected to the top material shaft by a fastener. The lower end of the top material connecting rod is connected to a circular limiting block by a fastener. The circular limiting block is locked at the lower end of the second annular step surface. The third reset spring is sleeved on the outer periphery of the top material connecting rod and located in the inner cavity of the top material shaft; the top rod is vertically embedded in the hole provided at the bottom of the top material shaft, and the end of the top rod penetrates through the bottom of the fixing sleeve; a retaining pin is installed at the bottom of the fixing sleeve, and the position and shape of the retaining pin are adapted to the retaining hole on the retaining spring.

9. The hole retaining ring mounting mechanism according to claim 8, characterized in that, The end of the fixed sleeve that connects with the material handling station has a contoured groove that matches the shape of the retaining spring.

10. The hole retaining ring mounting mechanism according to claim 8, characterized in that, A connecting plate is also installed on the lower outer side of the fixing sleeve. The connecting plate is provided with a positioning hole, which is used to cooperate with the positioning pin provided on the assembly housing.

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