Pin shaft press-fitting bearing assembling mechanism

Abstract

The utility model discloses a pin shaft press-fitting bearing assembling mechanism which comprises a mounting base, a stand column, a top plate, a ball guide column mold frame, a bottom plate, a pin shaft fixing plate, a clamp spring positioning assembly, a gas-liquid pressure cylinder, a positioning shaft base and a bearing positioning shaft. The ball guide column mold frame is arranged on the mounting base, and the bottom plate is horizontally arranged on a lower mold frame of the ball guide column mold frame; the pin shaft fixing plate is horizontally arranged on the bottom plate, longitudinally-distributed positioning holes are formed in the pin shaft fixing plate, the clamp spring positioning assembly is fixed to the pin shaft fixing plate, the gas-liquid pressure cylinder is longitudinally fixed to the top of the top plate, and the driving end of the gas-liquid pressure cylinder is connected with the top of an upper die frame of the ball guide column die frame. The bottom of the upper die frame is provided with a bearing positioning shaft which is longitudinally distributed through a positioning shaft seat and corresponds to the positioning hole up and down, and the lower portion of the bearing positioning shaft is arranged below the positioning shaft seat in a protruding mode. The press-fitting device effectively reduces labor intensity, improves press-fitting efficiency and guarantees press-fitting quality.

Description

Technical Field

[0001] The utility model relates to a pin-shaft press-fit bearing assembly mechanism. Background Art

[0002] In the existing parts processing and assembly process, most of the work is done manually. For example, when pressing a bearing, a retaining ring and a bearing combination structure on the end of a pin shaft, the bearing, the retaining ring and the bearing are pressed onto the pin shaft in sequence manually using tools. If the retaining ring needs to be positioned during the pressing process, other auxiliary tools are required. The entire assembly process is time-consuming, labor-intensive, and inefficient, and the quality of product assembly cannot be guaranteed. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a pin shaft press-fit bearing assembly mechanism, which adopts automated assembly to effectively realize the rapid and stable assembly of the pin shaft, bearing and retaining ring, effectively reduce labor intensity, improve press-fit efficiency and ensure press-fit quality.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a pin shaft press-fit bearing assembly mechanism, which is used to sequentially install a first bearing, a retaining spring and a second bearing at one end of the pin shaft, including a mounting seat, a column, a top plate, a ball guide column mold frame, a bottom plate, a pin shaft fixing plate, a retaining spring positioning assembly, a gas-liquid booster cylinder, a positioning shaft seat and a bearing positioning shaft, wherein the mounting seat is horizontally distributed, the top plate is horizontally arranged and fixed on the mounting seat through the column, the ball guide column mold frame is arranged on the mounting seat, and the bottom plate is horizontally arranged On the lower mold frame of the ball guide column mold frame, the pin shaft fixing plate is horizontally arranged on the bottom plate, and the pin shaft fixing plate is provided with longitudinally distributed positioning holes. The pin shaft is longitudinally arranged in the positioning hole, and the retaining spring positioning assembly is fixed on the pin shaft fixing plate. The gas-liquid booster cylinder is longitudinally fixed on the top of the top plate and the driving end is connected to the top of the upper mold frame of the ball guide column mold frame. The bottom of the upper mold frame is provided with a longitudinally distributed bearing positioning shaft corresponding to the positioning hole up and down through a positioning shaft seat, and the lower part of the bearing positioning shaft protrudes below the positioning shaft seat.

[0005] In a preferred embodiment of the present invention, the retaining spring positioning assembly includes a retaining spring positioning seat, a retaining spring push plate, a spring seat and a tensioning spring.

[0006] In a preferred embodiment of the utility model, the retaining spring positioning seat is provided with a laterally distributed sliding groove, the retaining spring push plate is arranged in the sliding groove and a laterally distributed spring seat is vertically arranged at the outer end, and a tensioning spring is arranged between the spring seat and the retaining spring positioning seat.

[0007] In a preferred embodiment of the utility model, a pressure sensor is further provided between the driving end of the gas-liquid booster cylinder and the upper mold frame.

[0008] In a preferred embodiment of the utility model, a mounting hole is provided between the positioning shaft seat and the upper mold frame, the bearing positioning shaft is correspondingly arranged in the mounting hole and a clamping spring is arranged on the top, and a plurality of circles of O-rings distributed up and down are arranged on the lower part of the bearing positioning shaft.

[0009] In a preferred embodiment of the utility model, a displacement sensor is further provided at the bottom of the upper mold frame, and a displacement sensor plate is provided on the retaining spring positioning assembly corresponding to the displacement sensor up and down.

[0010] The beneficial effects of the utility model are as follows: the pin shaft press-fit bearing assembly mechanism disclosed by the utility model adopts automated assembly, effectively realizes the fast and stable assembly of the pin shaft, bearing and retaining ring, effectively reduces labor intensity, improves press-fit efficiency and ensures press-fit quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0012] Figure 1 This is a three-dimensional diagram of a preferred embodiment of a pin-shaft press-fit bearing assembly mechanism of the utility model;

[0013] Figure 2 yes Figure 1 A partial enlarged view of part A. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1 Combination Figure 2 As shown, the embodiment of the utility model includes:

[0016] A pin shaft press-fit bearing assembly mechanism is used to sequentially install a first bearing 2, a retaining spring 3 and a second bearing 4 at one end of a pin shaft 1, comprising a mounting seat 5, a column 6, a top plate 7, a ball guide column mold frame 8, a bottom plate 9, a pin shaft fixing plate 10, a retaining spring positioning assembly, a gas-liquid booster cylinder 11, a positioning shaft seat 12 and a bearing positioning shaft 13.

[0017] The mounting seat 5 is horizontally distributed, the top plate 7 is horizontally arranged and fixed on the mounting seat 5 through the column 6, the ball guide column mold frame 8 is arranged on the mounting seat 5, and the ball guide column mold frame 8 can realize stable lifting in the longitudinal direction. The bottom plate 9 is horizontally arranged on the lower mold frame 801 of the ball guide column mold frame 8, the pin fixing plate 10 is horizontally arranged on the bottom plate 9, and the pin fixing plate 10 is provided with longitudinally distributed positioning holes 14, and the pin 1 is longitudinally arranged in the positioning hole 14 to realize the positioning of the pin 1.

[0018] The first bearing 2 is preferably placed on the top of the pin shaft 1.

[0019] The circlip positioning assembly is fixed on the pin fixing plate 10 and is used for lateral positioning of the circlip 3. The circlip positioning assembly includes a circlip positioning seat 15, a circlip push plate 16, a spring seat 17 and a tension spring 18. The circlip positioning seat 15 is provided with a laterally distributed slide groove 19. The circlip push plate 16 is arranged in the slide groove 19 and a laterally distributed spring seat 17 is vertically arranged at the outer end. A tension spring 18 is arranged between the spring seat 17 and the circlip positioning seat 15. The circlip 3 on the front side of the circlip push plate 16 is pushed toward the pin 1 above the first bearing 2 by the tension spring 18.

[0020] The gas-liquid booster cylinder 11 is longitudinally fixed on the top of the top plate 7 and the driving end is connected to the top of the upper mold frame 802 of the ball guide column mold frame 8, and the upper mold frame 802 is driven to rise and fall by the gas-liquid booster cylinder 11.

[0021] A pressure sensor 20 is also provided between the driving end of the gas-liquid booster cylinder 11 and the upper mold frame 802 for detecting the pressure during the press-fitting process.

[0022] A displacement sensor 21 is also provided at the bottom of the upper mold frame 802, and a displacement sensor plate 22 is provided on the retaining spring positioning assembly, corresponding to the displacement sensor 21 up and down, for real-time detection of the stroke during the press-fitting process.

[0023] A longitudinally distributed bearing positioning shaft 13 is provided at the bottom of the upper mold frame 802 through a positioning shaft seat 12, corresponding to the positioning hole 14 up and down. A mounting hole 23 is provided between the positioning shaft seat 12 and the upper mold frame 802. The bearing positioning shaft 13 is correspondingly arranged in the mounting hole 23 and a clamping spring 24 is provided on the top. The lower part of the bearing positioning shaft 13 is protruded below the positioning shaft seat 12, and the lower part of the bearing positioning shaft 13 is ensured to be stably pressed out by the clamping spring 24. The lower part of the bearing positioning shaft 13 is provided with multiple circles of O-rings 25 distributed up and down to facilitate the installation of the second bearing 4.

[0024] During assembly, insert the pin 1 into the positioning hole 14, place the first bearing 2 on the top of the pin 1, place the retaining ring 3 above the first bearing 2, and position the retaining ring 3 on the pin 1 through the retaining ring push plate 16. Place the second bearing 4 on the bearing positioning shaft 13, press the gas-liquid booster cylinder 11 downward to press the second bearing 4 to the pin 1 above the retaining ring 3, and retract the gas-liquid booster cylinder 11 to complete the press-fitting.

[0025] In summary, the pin shaft press-fit bearing assembly mechanism disclosed in the utility model adopts automated assembly to effectively realize the rapid and stable assembly of the pin shaft, bearing and retaining ring, effectively reduce labor intensity, improve press-fit efficiency and ensure press-fit quality.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pin-shaft press-fit bearing assembly mechanism, used to sequentially install a first bearing, a retaining spring and a second bearing at one end of a pin shaft, characterized in that: It includes a mounting seat, a column, a top plate, a ball guide column mold frame, a bottom plate, a pin fixing plate, a retaining spring positioning assembly, a gas-liquid booster cylinder, a positioning shaft seat and a bearing positioning shaft. The mounting seat is horizontally distributed, the top plate is horizontally arranged and fixed on the mounting seat through the column, the ball guide column mold frame is arranged on the mounting seat, the bottom plate is horizontally arranged on the lower mold frame of the ball guide column mold frame, the pin fixing plate is horizontally arranged on the bottom plate, the pin fixing plate is provided with longitudinally distributed positioning holes, the pin is longitudinally arranged in the positioning hole, the retaining spring positioning assembly is fixed on the pin fixing plate, the gas-liquid booster cylinder is longitudinally fixed on the top of the top plate and the driving end is connected to the top of the upper mold frame of the ball guide column mold frame, the bottom of the upper mold frame is provided with a longitudinally distributed bearing positioning shaft corresponding to the positioning hole up and down through the positioning shaft seat, and the lower part of the bearing positioning shaft protrudes below the positioning shaft seat.

2. The pin-shaft press-fit bearing assembly mechanism according to claim 1, characterized in that: The retaining spring positioning assembly comprises a retaining spring positioning seat, a retaining spring push plate, a spring seat and a tensioning spring.

3. The pin-shaft press-fit bearing assembly mechanism according to claim 2, characterized in that: The retaining spring positioning seat is provided with a laterally distributed sliding groove, the retaining spring push plate is arranged in the sliding groove and a laterally distributed spring seat is vertically arranged at the outer end, and a tensioning spring is arranged between the spring seat and the retaining spring positioning seat.

4. The pin-shaft press-fit bearing assembly mechanism according to claim 1, characterized in that: A pressure sensor is also provided between the driving end of the gas-liquid booster cylinder and the upper mold frame.

5. The pin-shaft press-fit bearing assembly mechanism according to claim 1, characterized in that: A mounting hole is arranged between the positioning shaft seat and the upper mold frame, the bearing positioning shaft is arranged correspondingly in the mounting hole and a compression spring is arranged on the top, and a plurality of O-rings distributed up and down are arranged on the lower part of the bearing positioning shaft.

6. The pin-shaft press-fit bearing assembly mechanism according to claim 1, characterized in that: A displacement sensor is also provided at the bottom of the upper mold frame, and a displacement sensor plate is provided on the retaining spring positioning assembly corresponding to the displacement sensor up and down.

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