Machine for automatically installing inner snap spring into bearing

Abstract

The utility model provides an automatic bearing inner snap spring installing machine which comprises a machine table, a snap spring pressing device and a bearing bearing structure are arranged on the machine table, the snap spring pressing device comprises an inner snap spring pressing assembly, and the inner snap spring pressing assembly is located over the bearing bearing structure. The inner clamp spring pressing assembly comprises a driving downward-pressing structure and a positioning inward-pushing structure elastically connected to the lower portion of the driving downward-pressing structure. The driving downward-pushing structure comprises a downward-pushing part, an inner pushing rod fixedly connected to the lower end of the downward-pushing part, a sliding pushing head connected to the lower end of the inner pushing rod in a limiting and sleeving mode and a first spring connected to the inner pushing rod in a sleeving mode, and the first spring is located between the sliding pushing head and the downward-pushing part; a guide hole is formed in the middle of the clamp spring guide piece, and a clamp spring is placed at the upper end of the guide hole. The utility model relates to the field of bearing snap spring assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing snap spring assembly field especially relates to a kind of automatic bearing installs inner snap spring machine. BACKGROUND

[0002] In bearing manufacturing and assembly, the installation of inner snap spring is the key process to ensure the stability of bearing assembly. The traditional inner snap spring assembly mainly relies on manual operation, and workers need to press the snap spring into the annular groove on the inner wall of the bearing with the help of simple tools. However, manual assembly has the problems of low efficiency and poor consistency, and the snap spring is easily deformed, misaligned or even damaged the bearing surface due to uneven force. With the development of automation technology, some automatic snap spring assembly devices have been proposed, but they still have the following defects: 1. The snap spring is pressed by rigid contact, and there is no buffer compensation mechanism, which can cause misalignment of the snap spring and the installation groove due to equipment precision or bearing positioning deviation; 2. The snap spring is easily radially offset during pressing, making it difficult to uniformly embed into the groove.

[0003] Therefore, the inventor has redesigned an automatic bearing inner snap spring machine to solve the above problems. SUMMARY

[0004] To solve the above-mentioned problems, the utility model provides an automatic bearing inner snap spring machine, which aims to solve the misalignment of the snap spring and the installation groove in the prior art automatic snap spring assembly device and the problem of radial offset of the snap spring.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic bearing inner snap spring machine, comprising a machine table, a snap spring pressing device and a bearing bearing structure are arranged on the machine table, the snap spring pressing device comprises an inner snap spring pressing assembly, the inner snap spring pressing assembly is located directly above the bearing bearing structure, the inner snap spring pressing assembly comprises a driving downward structure and a positioning inner pushing structure elastically connected below the driving downward structure, the driving downward structure comprises a pushing part, an inner pushing rod fixedly connected to the lower end of the pushing part, a sliding pushing head sleeved on the lower end of the inner pushing rod, and a first spring sleeved on the inner pushing rod, the first spring is located between the sliding pushing head and the pushing part, the positioning inner pushing structure comprises a snap spring guide, a guide hole is formed in the middle of the snap spring guide, a snap spring is placed in the upper end of the guide hole, the driving downward structure drives the snap spring guide to be positioned on the snap spring installation groove of the bearing on the bearing bearing structure, and the inner pushing rod pushes the snap spring into the snap spring installation groove through the guide hole.

[0006] Based on the above, the automatic bearing inner snap spring machine has the advantages of solving the misalignment of the snap spring and the installation groove in the prior art automatic snap spring assembly device and the problem of radial offset of the snap spring; mainly embodied in:

[0007] 1. The utility model discloses a clamping spring guide piece and guide hole are set up, utilize the guide hole to the accurate guidance of clamping spring is carried out with the combination tapered preloading groove realizes the prepositioning of clamping spring, and the stability of clamping spring guide piece in the process of pressing is ensured through the close adhesion of mounting groove positioning ring and bearing inner wall to effectively solve the problem of clamping spring and mounting groove misalignment, avoid the alignment error caused by equipment precision or bearing positioning deviation;

[0008] 2. The utility model discloses through the first spring and sliding push head in the drive down -pressing structure provides elastic buffer, makes clamping spring even stress in the process of pressing, and simultaneously utilizes the second down -pressing plate in the positioning inner push structure and the elastic connecting unit in the down -push component and enhances the pressing stability, solves the problem that clamping spring is easy to have radial deviation, ensures that clamping spring can even embed in the mounting groove, reduces the risk of deformation and deviation.

[0009] Further, the upper end of the guide hole is provided with a tapered preloading groove, the clamping spring is placed in the tapered preloading groove, and the lower end of the clamping spring guide piece is provided with a mounting groove positioning ring outside the guide hole, and the mounting groove positioning ring is positioned on the inner wall of the bearing above the clamping spring mounting groove.

[0010] Based on the above, the tapered preloading groove has the beneficial effect that the clamping spring can be pre-positioned before pressing, ensuring that the clamping spring is aligned with the center of the guide hole, and improving the initial alignment accuracy of the clamping spring installation; the mounting groove positioning ring has the beneficial effect of ensuring that the clamping spring guide piece remains stable during the pressing process, avoiding misalignment caused by equipment precision or bearing positioning deviation.

[0011] Further, the positioning inner push structure further comprises a second down -pressing plate, the middle part of the second down -pressing plate is provided with a stepped mounting port, and the clamping spring guide piece is screw connected in the stepped mounting port.

[0012] Based on the above, the stepped mounting port has the beneficial effect that the clamping spring guide piece can be stably installed on the second down -pressing plate through screw connection, facilitating the replacement of the clamping spring guide piece when different sizes of mounting groove positioning rings are needed for different models of bearings.

[0013] Further, the down -push component includes a connecting rod, a connecting sleeve, a first down -pressing plate and elastic connecting units on both sides of the bottom end of the first down -pressing plate, the connecting sleeve is fixed to the lower end of the connecting rod through a pin, the lower end of the connecting sleeve is connected to the middle part of the first down -pressing plate through a screw, and the two sides of the first down -pressing plate are connected to the second down -pressing plate through the elastic connecting units.

[0014] Based on the above, the down -push component has the beneficial effect of being flexibly connected to the second down -pressing plate through the elastic connecting units, providing a buffering effect, effectively reducing the rigid impact during the pressing process, and ensuring that the clamping spring is evenly stressed during pressing.

[0015] Furthermore, the elastic connection unit includes a sliding rod, a second spring, and a sliding rod sleeve. The sliding rod sleeve is screwed to both sides of the second lower pressure plate. The upper end of the sliding rod is fixedly connected to the first lower pressure plate. The lower end of the sliding rod is sleeved on the sliding rod sleeve, and the end of the lower end of the sliding rod is limited to the outside of the lower end of the sliding rod sleeve. The second spring is sleeved on the sliding rod, and its upper and lower ends are respectively connected to the first lower pressure plate and the second lower pressure plate.

[0016] Based on the above, the beneficial effects of the sliding rod, the second spring, and the sliding rod sleeve are that they enable a flexible connection between the first and second lower pressure plates, which can effectively absorb the impact force during the pressing process and avoid deformation or displacement of the snap ring caused by rigid contact.

[0017] Furthermore, the snap ring pressing device also includes a compression spring cylinder and a compression spring frame. The compression spring cylinder is disposed at the upper end of the compression spring frame, and the upper end of the connecting rod is connected to the output end of the compression spring cylinder.

[0018] Furthermore, the bearing support structure includes a bearing support block, a downward pressure buffer unit located on both sides of the bearing support block, and an infrared positioning monitoring unit located between the compression spring frame and the bearing support block. The upper end of the bearing support block is provided with a bearing stepped boss, and the bearing is positioned and sleeved on the bearing stepped boss. The lower end of the second downward pressure plate contacts the downward pressure buffer unit to offset the downward pressure force and limit the downward pressure height of the second downward pressure plate.

[0019] Based on the above, the beneficial effect of the infrared position monitoring unit is to monitor the bearing's position status in real time.

[0020] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 : This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the main body of this utility model;

[0023] Figure 3 : This is a schematic diagram of the internal snap ring pressing assembly of this utility model;

[0024] Figure 4 :for Figure 3 An enlarged schematic diagram of part A;

[0025] Figure 5 : This is a schematic diagram from another perspective of the internal snap ring pressing assembly of this utility model;

[0026] Figure 6 :for Figure 5 An enlarged schematic diagram of part B;

[0027] Figure 7 This is a partial cross-sectional view of the compression snap ring of this utility model;

[0028] Figure 8 :for Figure 7 An enlarged schematic diagram of part C.

[0029] Reference numerals: 1-Machine base, 2-Snap ring pressing device, 21-Inner snap ring pressing assembly, 211-Drive pressing structure, 2111-Push-down component, 21111-Connecting rod, 21112-Connecting sleeve, 21113-First pressing plate, 21114-Elastic connecting unit, 21115-Sliding rod, 21116-Second spring, 21117-Sliding rod sleeve, 2112-Inner push rod, 2113-Sliding push head, 2114- First spring, 212-positioning inner push structure, 2121-second lower pressure plate, 2122-circlip guide, 21221-guide hole, 21222-conical pre-installation groove, 21223-mounting groove positioning ring, 22-compression spring cylinder, 23-compression spring frame, 3-bearing bearing structure, 31-bearing bearing block, 311-bearing stepped boss, 32-lower pressure buffer unit, 33-infrared positioning monitoring unit, 100-circlip, 200-bearing. Detailed Implementation

[0030] like Figures 1-8As shown, an automatic bearing internal snap ring installation machine includes a machine base 1. The machine base 1 is equipped with a snap ring pressing device 2 and a bearing support structure 3. The snap ring pressing device 2 includes an internal snap ring pressing assembly 21, which is located directly above the bearing support structure 3. The internal snap ring pressing assembly 21 includes a driving pressing structure 211 and a positioning pushing structure 212 elastically connected below the driving pressing structure 211. The driving pressing structure 211 includes a pushing component 2111, an internal push rod 2112 fixedly connected to the lower end of the pushing component 2111, and a sliding push head 2113 limited and sleeved at the lower end of the internal push rod 2112. The first spring 2114 is sleeved on the inner push rod 2112. The first spring 2114 is located between the sliding push head 2113 and the push-down component 2111. The positioning inner push structure 212 includes a snap ring guide 2122. A guide hole 21221 is provided in the middle of the snap ring guide 2122. A snap ring 100 is placed at the upper end of the guide hole 21221. The driving pressing structure 211 drives the snap ring guide 2122 to be positioned on the snap ring mounting groove of the bearing 200 located on the bearing bearing support structure 3. The inner push rod 2112 pushes the snap ring 100 into the snap ring mounting groove through the guide hole 21221.

[0031] The upper end of the guide hole 21221 is provided with a tapered pre-installation groove 21222, and the snap ring 100 is placed in the tapered pre-installation groove 21222. The lower end of the snap ring guide 2122 is provided with a mounting groove positioning ring 21223 around the guide hole 21221. The mounting groove positioning ring 21223 is positioned on the inner wall of the bearing 200 above the snap ring mounting groove.

[0032] The positioning push-in structure 212 also includes a second lower pressure plate 2121, the second lower pressure plate 2121 having a stepped mounting port in the middle, and the snap ring guide 2122 being screwed into the stepped mounting port.

[0033] The push-down component 2111 includes a connecting rod 21111, a connecting sleeve 21112, a first pressure plate 21113, and elastic connecting units 21114 located on both sides of the bottom end of the first pressure plate 21113. The connecting sleeve 21112 is fixed to the lower end of the connecting rod 21111 by a pin. The lower end of the connecting sleeve 21112 is connected to the middle part of the first pressure plate 21113 by a screw. The two sides of the first pressure plate 21113 are connected to the second pressure plate 2121 by the elastic connecting units 21114.

[0034] The elastic connection unit 21114 includes a sliding rod 21115, a second spring 21116, and a sliding rod sleeve 21117. The sliding rod sleeve 21117 is screwed to both sides of the second lower pressure plate 2121. The upper end of the sliding rod 21115 is fixedly connected to the first lower pressure plate 21113. The lower end of the sliding rod 21115 is sleeved on the sliding rod sleeve 21117, and the end of the lower end of the sliding rod 21115 is limited to the outside of the lower end of the sliding rod sleeve 21117. The second spring 21116 is sleeved on the sliding rod 21115, and its upper and lower ends are respectively connected to the first lower pressure plate 21113 and the second lower pressure plate 2121.

[0035] The snap ring pressing device 2 also includes a spring cylinder 22 and a spring frame 23. The spring cylinder 22 is disposed at the upper end of the spring frame 23, and the upper end of the connecting rod 21111 is connected to the output end of the spring cylinder 22.

[0036] The bearing support structure 3 includes a bearing support block 31, a downward pressure buffer unit 32 located on both sides of the bearing support block 31, and an infrared positioning monitoring unit 33 located between the compression spring frame 23 and the bearing support block 31. The upper end of the bearing support block 31 is provided with a bearing stepped boss 311. The bearing 200 is positioned and sleeved on the bearing stepped boss 311. The lower end of the second downward pressure plate 2121 contacts the downward pressure buffer unit 32 to offset the downward pressure force and limit the downward pressure height of the second downward pressure plate 2121.

[0037] In summary, the specific embodiments of this utility model are as follows:

[0038] First, the bearing 200 with the internal retaining spring to be installed is placed on the bearing support block 31 of the machine base 1, and the bearing 200 is precisely positioned by the bearing stepped boss 311. At this time, the infrared positioning monitoring unit 33 on the machine base 1 detects whether the bearing 200 is in place. After confirming that it is correct, the compression spring cylinder 22 is activated, and its output end drives the downward pressing structure 211 to move downward, so that the first pressing plate 21113 and the second pressing plate 2121 move down synchronously.

[0039] During the pressing process, the mounting groove positioning ring 21223 of the snap ring guide 2122 first contacts and positions itself against the inner wall of the bearing 200, ensuring accurate alignment between the snap ring guide 2122 and the snap ring mounting groove of the bearing 200. Subsequently, the first pressing plate 21113 continues to press down through the elastic connecting unit 21114, causing the inner push rod 2112 and the sliding push head 2113 to move downwards, pushing the snap ring 100 placed in the tapered pre-installation groove 21222 into the snap ring mounting groove of the bearing 200 through the guide hole 21221.

[0040] During the pressing process, the downward pressure buffer unit 32 contacts the second downward pressure plate 2121, offsetting the downward pressure force and limiting the downward pressure height of the second downward pressure plate 2121, ensuring that the retaining spring 100 is evenly stressed and accurately embedded in the mounting groove. After pressing is completed, the compression spring cylinder 22 drives the downward pressure structure 211 to reset, preparing for the next round of pressing operation.

[0041] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. An automatic bearing internal snap ring mounting machine, comprising a machine base (1), characterized in that: The machine base (1) is equipped with a snap ring pressing device (2) and a bearing support structure (3). The snap ring pressing device (2) includes an inner snap ring pressing assembly (21), which is located directly above the bearing support structure (3). The inner snap ring pressing assembly (21) includes a driving pressing structure (211) and a positioning pushing structure (212) elastically connected to the lower part of the driving pressing structure (211). The driving pressing structure (211) includes a pushing component (2111), an inner push rod (2112) fixedly connected to the lower end of the pushing component (2111), a sliding push head (2113) limited and sleeved on the lower end of the inner push rod (2112), and a positioning pushing head (2113) sleeved on the inner push rod (2112). The first spring (2114) on the 112) is located between the sliding push head (2113) and the push-down component (2111). The positioning push structure (212) includes a snap ring guide (2122). A guide hole (21221) is provided in the middle of the snap ring guide (21221). A snap ring (100) is placed at the upper end of the guide hole (21221). The driving push structure (211) drives the snap ring guide (2122) to be positioned on the snap ring mounting groove of the bearing (200) on the bearing bearing structure (3). The push rod (2112) pushes the snap ring (100) into the snap ring mounting groove through the guide hole (21221).

2. The automatic bearing internal snap ring installation machine according to claim 1, characterized in that: The upper end of the guide hole (21221) is provided with a tapered pre-installation groove (21222), the snap ring (100) is placed in the tapered pre-installation groove (21222), and the lower end of the snap ring guide (2122) is provided with a mounting groove positioning ring (21223) around the guide hole (21221). The mounting groove positioning ring (21223) is positioned on the inner wall of the bearing (200) above the snap ring mounting groove.

3. The automatic bearing internal snap ring installation machine according to claim 1, characterized in that: The positioning push-in structure (212) also includes a second lower pressure plate (2121), and a stepped mounting port is provided in the middle of the second lower pressure plate (2121). The snap ring guide (2122) is screwed into the stepped mounting port.

4. An automatic bearing internal snap ring installation machine according to claim 3, characterized in that: The push-down component (2111) includes a connecting rod (21111), a connecting sleeve (21112), a first pressure plate (21113), and elastic connecting units (21114) located on both sides of the bottom end of the first pressure plate (21113). The connecting sleeve (21112) is fixed to the lower end of the connecting rod (21111) by a pin. The lower end of the connecting sleeve (21112) is connected to the middle part of the first pressure plate (21113) by a screw. The two sides of the first pressure plate (21113) are connected to the second pressure plate (2121) through the elastic connecting units (21114).

5. An automatic bearing circlip installation machine according to claim 4, characterized in that: The elastic connection unit (21114) includes a sliding rod (21115), a second spring (21116), and a sliding rod sleeve (21117). The sliding rod sleeve (21117) is screwed to both sides of the second lower pressure plate (2121). The upper end of the sliding rod (21115) is fixedly connected to the first lower pressure plate (21113). The lower end of the sliding rod (21115) is sleeved on the sliding rod sleeve (21117), and the end of the lower end of the sliding rod (21115) is limited to the outside of the lower end of the sliding rod sleeve (21117). The second spring (21116) is sleeved on the sliding rod (21115), and its upper and lower ends are respectively connected to the first lower pressure plate (21113) and the second lower pressure plate (2121).

6. An automatic bearing internal snap ring installation machine according to claim 4, characterized in that: The snap ring pressing device (2) further includes a spring cylinder (22) and a spring frame (23). The spring cylinder (22) is disposed at the upper end of the spring frame (23), and the upper end of the connecting rod (21111) is connected to the output end of the spring cylinder (22).

7. An automatic bearing internal snap ring installation machine according to claim 6, characterized in that: The bearing support structure (3) includes a bearing support block (31), a pressure buffer unit (32) located on both sides of the bearing support block (31), and an infrared positioning monitoring unit (33) located between the compression spring frame (23) and the bearing support block (31). The upper end of the bearing support block (31) is provided with a bearing stepped boss (311). The bearing (200) is positioned and sleeved on the bearing stepped boss (311). The lower end of the second pressure plate (2121) contacts the pressure buffer unit (32) to offset the downward impact force and limit the downward pressure height of the second pressure plate (2121).

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