Inner wall knurling device for bearing ring
By designing a knurling device for the inner wall of the bearing ring including a ferrule chuck, a contact work mechanism, a quick start work mechanism and a knurling work mechanism, the problem that existing equipment cannot process wider straight knurled sections is solved. , realizes efficient and automated knurling operations.
Patent Information
- Application Number
- CN202420212760.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-01-29
AI Technical Summary
Existing knurled tools and equipment cannot complete the processing of wider straight-line knurled sections on the inner wall of the bearing ring.
A knurling device for the inner wall of the bearing ring including a ferrule chuck, a contact work mechanism, a quick work work mechanism and a knurling work mechanism is designed. Through the coordinated work of these mechanisms, the continuous and automatic knurling tool is realized. Intrusion, knurling and retreat operations.
It realizes efficient processing of wide straight knurled sections, solves the problem that traditional equipment cannot complete such operations, and improves production efficiency and automation.
Smart Images
Figure CN222429846U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing component production equipment, in particular to an inner wall knurling device for a bearing ring. Background Art
[0002] Bearing rings are important components of bearings. Figure 4 The figure shows a special bearing ring, which is characterized in that a circle of straight knurling sections is provided on the inner hole wall, and the width of the straight knurling sections is relatively wide (above 20 mm). Due to the special material of the bearing steel, the straight knurling sections are located on the inner wall of the bearing ring, and the width of the straight knurling sections is relatively large. The existing knurling tools and knurling equipment cannot complete the knurling operation of this type of bearing ring. Therefore, it is an urgent need for enterprises to design a knurling device to cooperate in completing the production operation of this type of bearing ring. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an inner wall knurling device for a bearing ring.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A knurling device for the inner wall of a bearing ring comprises a ring chuck and a knurling operation system, wherein the ring chuck can clamp a bearing ring workpiece, and the knurling operation system comprises a contact feed mechanism, a quick feed mechanism and a knurling feed mechanism, wherein the quick feed mechanism is stacked on the contact feed mechanism, wherein the contact feed mechanism forms a lateral action path, wherein the quick feed mechanism forms a longitudinal action path, wherein the knurling feed mechanism is installed on the quick feed mechanism, wherein the knurling feed mechanism also forms a longitudinal action path, wherein the knurling feed mechanism is installed with a knurling tool, wherein the knurling tool is installed toward the ring chuck, and wherein the knurling tool can be inserted into the bearing ring workpiece to complete the inner wall knurling operation.
[0006] The contact advance mechanism includes a base frame and a transverse moving platform. Two laterally arranged guide rods are installed on the base frame. The transverse moving platform is movably mounted on the two guide rods. A spring is mounted on the outside of each guide rod. The spring is fixedly installed on the left side of the transverse moving platform. A platform driving mechanism is installed on the right side of the transverse moving platform.
[0007] The platform driving mechanism includes a cam bracket, a driving cam and a motor. The driving cam is rotatably mounted on the cam bracket. A cam mounting groove is provided on the base frame. The driving cam is arranged and mounted at the cam mounting groove position. A transmission gear is fixedly connected to the driving cam. The output end of the motor is connected to a driving gear. The driving gear is meshed with the transmission gear. A protrusion is provided on the driving cam.
[0008] The quick-action working feed mechanism includes a quick-action push cylinder and a quick-action seat, the quick-action seat is movably installed on the transverse moving platform, the piston rod end of the quick-action push cylinder is connected to the quick-action seat, the side of the quick-action seat is connected to a quick-action stroke adjustment bolt, a quick-action limit baffle is installed on the transverse moving platform, the quick-action limit baffle blocks the movement path of the quick-action stroke adjustment bolt, and the knurled working feed mechanism is installed on the quick-action seat.
[0009] The knurling feed mechanism includes a tool slide and a feed cylinder. The tool slide is movably mounted on a quick-moving seat, the feed cylinder is fixedly mounted on the tool slide, the piston rod end of the feed cylinder is connected to the tool slide, and the knurling tool is fixedly connected to the tool slide.
[0010] A linkage plate is fixedly connected to the side of the tool slide, a motion hole groove is opened on the quick-moving seat, the linkage plate is installed through the motion hole groove, a feed stroke block is connected and installed on the side of the quick-moving seat, a stroke collision block is installed on the linkage plate, and the feed stroke block is arranged on the movement path of the stroke collision block.
[0011] The knurling tool comprises a knife handle and a knurling knife disc. The knife handle is provided with a knife disc groove. The knurling knife disc is rotatably installed in the knife disc groove. The outer edge wall of the knurling knife disc is provided with straight knurling.
[0012] The beneficial effects of the utility model are as follows: the utility model adopts a short-width continuous feed mode to complete the operation of making a wider straight knurling section. The utility model is designed with a contact feed mechanism, a fast feed mechanism and a knurling feed mechanism. The three cooperate with each other to continuously and automatically complete a series of operations such as feed, knurling and retracting. The utility model has the advantages of high automation and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a top view of the structure of the utility model;
[0014] Figure 2 This is an installation structure diagram of the knurling tool part of the utility model;
[0015] Figure 3 It is a structural schematic diagram of the driving cam of the utility model;
[0016] Figure 4 This is a cross-sectional view of the bearing ring that needs to be processed in the utility model.
[0017] In the figure: a ferrule chuck 1, a contact feed mechanism 2, a base frame 21, a guide rod 211, a spring 212, a cam mounting groove 213, a transverse platform 22, a fast-forward limit baffle 221, a platform driving mechanism 23, a cam bracket 231, a driving cam 232, a protrusion 2321, a transmission gear 233, a motor 234, a driving gear 235, a fast-action feed mechanism 3, a fast-action push cylinder 31, a fast-action seat 32, a motion hole groove 321, a fast-action stroke adjusting bolt 33, a knurled feed mechanism 4, a knurled tool 41, a tool handle 411, a tool disc groove 412, a knurled tool disc 413, a tool slide 42, a feed push cylinder 43, a linkage plate 44, a stroke bumper 441, and a feed stroke block 45. DETAILED DESCRIPTION
[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The descriptions of "left" and "right" in the present invention are all based on Figure 1 For reference direction:
[0019] like Figure 1 to Figure 3 As shown, a bearing ring inner wall knurling device comprises a ring chuck 1 and a knurling operation system. The ring chuck 1 can clamp a bearing ring workpiece. The knurling operation system comprises a contact feed mechanism 2, a quick feed mechanism 3 and a knurling feed mechanism 4. The quick feed mechanism 3 is stacked on the contact feed mechanism 2. The contact feed mechanism 2 forms a lateral action path. The quick feed mechanism 3 forms a longitudinal action path. The knurling feed mechanism 4 is installed on the quick feed mechanism 3. The knurling feed mechanism 4 also forms a longitudinal action path. The knurling feed mechanism 4 is installed with a knurling tool 41. The knurling tool 41 is installed toward the ring chuck 1. The knurling tool 41 can be inserted into the bearing ring workpiece to complete the inner wall knurling operation. Figure 1 As shown, the above-mentioned lateral action path refers to the movement path of the knurling tool 41 to fit or leave the inner hole wall of the bearing ring workpiece, and the above-mentioned longitudinal action path refers to the movement path of the knurling tool 41 to advance or retreat toward the ring chuck 1. The fast-moving feed mechanism 3 completes the fast-moving operation of the knurling tool 41, the contact feed mechanism 2 completes the facing operation of the knurling tool 41, and the knurling feed mechanism 4 completes the forward knurling operation of the knurling tool 41. With the cooperation of the three, the utility model can continuously and automatically complete a series of operations such as feeding, knurling, and retreating, and solve the problem of large-width straight knurling on the inner wall of the bearing ring. The utility model completes the operation fully automatically, and has the advantages of high degree of automation and high production efficiency (automatic loading and automatic blanking mechanisms can be installed at the position of the ring chuck 1. These mechanisms are widely used in actual production and are prior art, so they are not introduced here).
[0020] like Figure 1As shown, the contact feed mechanism 2 includes a base frame 21 and a transverse platform 22. Two laterally arranged guide rods 211 are installed on the base frame 21. The transverse platform 22 is movably mounted on the two guide rods 211. The guide rods 211 play a role in guiding the movement of the transverse platform 22, so that it can only move laterally. A spring 212 is mounted on the outside of each guide rod 211. The spring 212 is fixedly installed on the left side of the transverse platform 22. A platform driving mechanism 23 is installed on the right side of the transverse platform 22. Under the action of the spring 212, the transverse platform 22 maintains a transmission connection with the platform driving mechanism 23.
[0021] like Figure 1 As shown, the platform driving mechanism 23 includes a cam bracket 231, a driving cam 232 and a motor 234. The driving cam 232 is rotatably mounted on the cam bracket 231. A cam mounting groove 213 is provided on the base frame 21. The driving cam 232 is arranged and mounted at the position of the cam mounting groove 213. A transmission gear 233 is fixedly connected to the driving cam 232. An active gear 235 is connected to the output end of the motor 234. The active gear 235 meshes with the transmission gear 233. A protrusion 2321 is provided on the driving cam 232. After the motor 234 is started, the meshing relationship between the active gear 235 and the transmission gear 233 can drive The driving cam 232 rotates, and due to the action of the spring 212, the transverse platform 22 maintains contact with the driving cam 232. When the protrusion 2321 of the driving cam 232 contacts with the transverse platform 22, the transverse platform 22 can be pushed to move to the left. At this time, the spring 212 is compressed, and the knurling tool 41 fits the inner wall of the bearing ring workpiece, and can perform extrusion knurling operations. When the flat part of the driving cam 232 contacts with the transverse platform 22, under the action of the spring 212, the transverse platform 22 can be pushed to move to the right, and the knurling tool 41 is separated from the inner wall of the bearing ring workpiece. At this time, the tool can be retracted and the workpiece can be replaced.
[0022] like Figure 1 As shown, the quick-action working mechanism 3 includes a quick-action push cylinder 31 and a quick-action seat 32. The quick-action seat 32 is movably installed on the transverse platform 22. The piston rod end of the quick-action push cylinder 31 is connected to the quick-action seat 32. The side of the quick-action seat 32 is connected with a quick-action stroke adjustment bolt 33. A quick-action limit baffle 221 is installed on the transverse platform 22. The quick-action limit baffle 221 blocks the movement path of the quick-action stroke adjustment bolt 33. The knurling working mechanism 4 is installed on the quick-action seat 32. The quick-action push cylinder 31 is used to push the quick-action seat 32 to perform linear motion, and the movement direction is toward the ring chuck 1. When the quick-action stroke adjustment bolt 33 contacts the quick-action limit baffle 221, the knurling tool 41 is fed into place and falls at the knurling starting position. By adjusting the distance between the stroke adjustment bolt 33 and the limit baffle 221, the quick feed stroke can be adjusted, which can match different knurling point requirements.
[0023] like Figure 1 As shown, the knurling feed mechanism 4 includes a tool slide 42 and a feed cylinder 43. The tool slide 42 is movably mounted on the fast-moving seat 32, and the feed cylinder 43 is fixedly mounted on the tool slide 42. The piston rod end of the feed cylinder 43 is connected to the tool slide 42, and the knurling tool 41 is fixedly connected to the tool slide 42. The fast-moving feed mechanism 3 only completes the operation of fast feeding and landing starting point of the knurling tool 41, and the subsequent feed is completed by the knurling feed mechanism 4, as shown in FIG. Figure 4 As shown, the bearing ring workpiece to be processed by the utility model has a knurled section with a large width, and the traditional one-time extrusion knurling process cannot meet the processing and production requirements (the large width of the knurled section means that the width of the knurling cutter disc must also be large, but the larger the knurling cutter disc, the greater the movement resistance with the workpiece, and the special bearing steel material, the one-time extrusion knurling process is prone to jamming and knife burning). The utility model adopts a thin cutter disc and a uniform feed mode to complete the knurling operation (the cutter disc is thin, the width is small, and the resistance is also small, which solves the problems of jamming and knife burning, but there is a need for continuous feed). The knurling feed mechanism 4 is used to meet the uniform feed requirements during operation, and the feed cylinder 43 is used to push the tool slide 42 forward at a uniform speed to form a uniform feed effect of the knurling tool 41.
[0024] like Figure 1 As shown, a linkage plate 44 is fixedly connected to the side of the tool slide 42, and the linkage plate 44 moves with the tool slide 42. A motion hole groove 321 is provided on the quick-moving seat 32, and the linkage plate 44 is installed through the motion hole groove 321. The opening of the motion hole groove 321 is mainly to avoid affecting the movement of the linkage plate 44. A feed stroke block 45 is connected and installed on the side of the quick-moving seat 32, and a stroke collision block 441 is installed on the linkage plate 44. The feed stroke block 45 is arranged on the movement path of the stroke collision block 441. The distance between the stroke collision block 441 and the feed stroke block 45 is equal to the width of the straight knurling section inside the bearing ring workpiece. When the stroke collision block 441 hits the feed stroke block 45, it proves that the knurling stroke is completed and the tool can be disengaged.
[0025] like Figure 3 As shown, the knurling tool 41 includes a tool handle 411 and a knurling cutter disc 413. The tool handle 411 is fixedly connected to the tool slide 42. A cutter disc groove 412 is provided on the tool handle 411. The knurling cutter disc 413 is rotatably installed in the cutter disc groove 412. Straight knurling is provided on the outer edge wall of the knurling cutter disc 413. The knurling cutter disc 413 protrudes from the tool handle 411. The outer edge of the knurling cutter disc 413 can fit the inner wall of the bearing ring workpiece. When the bearing ring workpiece rotates, the knurling cutter disc 413 can be driven to rotate at the same time, and an extrusion effect is formed on the inner wall of the bearing ring workpiece to extrude straight knurling. As the tool slide 42 advances, the knurling width will continue to widen.
[0026] The processing principle of the utility model is as follows: first, the fast-acting feed mechanism 3 is started, the knurling tool 41 is inserted into the bearing ring workpiece, the knurling cutter disc 413 is aligned with the knurling starting point, then, the contact feed mechanism 2 is started, the transverse platform 22 moves left, the knurling cutter disc 413 contacts the inner wall of the bearing ring workpiece, and the extrusion operation is performed. At this time, the knurling feed mechanism 4 is started, and the knurling cutter disc 413 is fed toward the deep direction of the ring chuck 1 to form a straight knurling with a large width. After the knurling stroke is completed, the contact feed mechanism 2 is first started in the reverse direction to separate the knurling cutter disc 413 from the inner wall of the bearing ring workpiece, and then the fast-acting feed mechanism 3 and the knurling feed mechanism 4 are both started, and the tool is quickly reset and quickly withdrawn.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A bearing ring inner wall knurling device, comprising a ring chuck (1) and a knurling operation system, characterized in that: The ring chuck (1) can clamp a bearing ring workpiece. The knurling operation system comprises a contact feed mechanism (2), a quick feed mechanism (3) and a knurling feed mechanism (4). The quick feed mechanism (3) is stacked on the contact feed mechanism (2). The contact feed mechanism (2) forms a transverse action path. The quick feed mechanism (3) forms a longitudinal action path. The knurling feed mechanism (4) is installed on the quick feed mechanism (3). The knurling feed mechanism (4) also forms a longitudinal action path. The knurling feed mechanism (4) is installed with a knurling tool (41). The knurling tool (41) is installed in the direction of the ring chuck (1). The knurling tool (41) can be inserted into the bearing ring workpiece to complete the inner wall knurling operation.
2. The inner wall knurling device of a bearing ring according to claim 1, characterized in that: The contact working mechanism (2) comprises a base frame (21) and a transverse moving platform (22), wherein two transversely arranged guide rods (211) are mounted on the base frame (21), and the transverse moving platform (22) is movably mounted on the two guide rods (211), and each guide rod (211) is provided with a spring (212) on the outside, and the spring (212) is fixedly mounted on the left side of the transverse moving platform (22), and a platform driving mechanism (23) is mounted on the right side of the transverse moving platform (22).
3. The inner wall knurling device of a bearing ring according to claim 2, characterized in that: The platform driving mechanism (23) comprises a cam bracket (231), a driving cam (232) and a motor (234); the driving cam (232) is rotatably mounted on the cam bracket (231); a cam mounting groove (213) is provided on the base frame (21); the driving cam (232) is arranged and mounted at the position of the cam mounting groove (213); a transmission gear (233) is fixedly connected to the driving cam (232); an output end of the motor (234) is connected to a driving gear (235); the driving gear (235) is meshed with the transmission gear (233); and a protruding portion (2321) is provided on the driving cam (232).
4. The inner wall knurling device of a bearing ring according to claim 2, characterized in that: The fast-acting working advance mechanism (3) comprises a fast-acting push cylinder (31) and a fast-acting seat (32); the fast-acting seat (32) is movably mounted on the transverse platform (22); the piston rod end of the fast-acting push cylinder (31) is connected to the fast-acting seat (32); a fast-acting stroke adjusting bolt (33) is connected to the side of the fast-acting seat (32); a fast-acting limit baffle (221) is mounted on the transverse platform (22); the fast-acting limit baffle (221) blocks the moving path of the fast-acting stroke adjusting bolt (33); and a knurled working advance mechanism (4) is mounted on the fast-acting seat (32).
5. The inner wall knurling device of a bearing ring according to claim 4, characterized in that: The knurling tool feed mechanism (4) comprises a tool slide (42) and a tool feed cylinder (43); the tool slide (42) is movably mounted on a quick-moving seat (32); the tool feed cylinder (43) is fixedly mounted on the tool slide (42); the piston rod end of the tool feed cylinder (43) is connected to the tool slide (42); and the knurling tool (41) is fixedly connected to the tool slide (42).
6. The inner wall knurling device of a bearing ring according to claim 5, characterized in that: A linkage plate (44) is fixedly connected to the side of the tool slide (42); a movement hole groove (321) is opened on the quick-moving seat (32); the linkage plate (44) is installed through the movement hole groove (321); a feed stroke block (45) is connected and installed on the side of the quick-moving seat (32); a stroke block (441) is installed on the linkage plate (44); and the feed stroke block (45) is arranged on the movement path of the stroke block (441).
7. The inner wall knurling device of a bearing ring according to claim 1, characterized in that: The knurled tool (41) comprises a knife handle (411) and a knurled knife disc (413); the knife handle (411) is provided with a knife disc groove (412); the knurled knife disc (413) is rotatably mounted in the knife disc groove (412); and straight knurling is provided on the outer edge wall of the knurled knife disc (413).