Automatic indexing device for ring-shaped shafts
By setting a protective mechanism in the ring-shaped shaft press-fit automatic indexer, and using the wear-resistant sleeve to contact the cam to reduce friction, the problem of friction and wear between the cam and the follower wheel is solved, thereby improving the indexing accuracy and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CYBELEC AUTOMATIC CONTROL EQUIP
- Filing Date
- 2025-04-16
- Publication Date
- 2026-07-21
AI Technical Summary
Under high load or high speed operation, the friction and wear between the cam and the follower wheel in existing cam indexers affect the indexing accuracy and equipment life.
An automatic indexing device with ring-shaped shaft press fitting is adopted. By setting a protective mechanism on the outside of the follower wheel, the wear-resistant sleeve contacts the groove of the cam to reduce friction and avoid wear on the cam and follower wheel.
This effectively reduces the friction between the cam and the follower wheel, improving indexing accuracy and extending the equipment's lifespan.
Smart Images

Figure CN224526418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of annular shaft processing technology, and in particular to an automatic indexing device for press-fitting annular shafts. Background Technology
[0002] Ring-shaped shafts refer to shaft components with a ring-shaped structure, used in mechanical equipment to support rotational motion. They are commonly found in complex transmission devices or other mechanical systems. Among them, ring-shaped shaft equipment requires the use of an automatic indexing device during the processing.
[0003] In existing technologies, cam indexers are used to carry ring-shaped workpieces for processing. During use, the cam indexer drives the follower wheel to perform indexing. However, the contact between the cam and the follower wheel can cause friction and wear, especially under high load or high speed operation. This wear can affect the indexing accuracy and the life of the equipment. Utility Model Content
[0004] The main purpose of this invention is to provide an automatic indexing device for press-fitting ring-shaped shafts.
[0005] The objective of this utility model can be achieved by adopting the following technical solution: An automatic indexing device for pressing ring-shaped shafts includes a body, a drive mechanism on the outside of the body, a transmission mechanism connected to the drive mechanism inside the body, a rotating mechanism connected to the outside of the transmission mechanism, the rotating mechanism including a follower wheel, a support shaft, a follower disc and a main shaft, and a protective mechanism on the outside of the follower wheel, the protective mechanism including a bushing rotatably connected to the follower wheel, and a wear-resistant sleeve fixedly connected to the outside of the bushing.
[0006] Preferably, the drive mechanism includes a motor and a gearbox, and the output end of the motor is connected to the transmission end inside the gearbox.
[0007] Preferably, the transmission mechanism includes a connecting shaft connected to the output end of the gearbox, a cam fixed on the outer side of the middle part of the connecting shaft, and a groove on the cam that matches the following wheel.
[0008] Preferably, a bearing bracket is rotatably connected to the outside of the connecting shaft, and the bearing bracket is fixed inside the machine body.
[0009] Preferably, the following wheel is fixedly connected to the following disc, and the following disc is fixedly connected to the machine body through the support shaft.
[0010] Preferably, the main shaft is fixed at the center of the follower disk, and the main shaft passes through the top of the machine body.
[0011] Preferably, the indexing plate is mounted on the top of the spindle, and the indexing plate has mounting holes for connection.
[0012] The beneficial effects of this technology are: By setting up a protective mechanism, when the cam and the follower wheel come into contact, the wear-resistant sleeve inside the protective mechanism contacts the groove inside the cam. At this time, the wear-resistant sleeve and the side wall of the cam will generate friction. The wear-resistant sleeve will always rotate along the follower wheel through the bushing during the friction process, thereby reducing the friction and avoiding wear caused by the friction generated by the contact between the cam and the follower wheel, thus avoiding affecting the indexing accuracy and the life of the equipment. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a preferred embodiment of the annular shaft press-fitting automatic indexing device according to the present invention; Figure 2 This is a schematic diagram of the structure after the machine body is separated in a preferred embodiment of the annular shaft press-fit automatic indexing device according to this utility model; Figure 3 This is a schematic diagram showing the connection relationship between the following wheel and the protective mechanism in a preferred embodiment of the annular shaft press-fitting automatic indexing device according to this utility model.
[0014] The annotations in the attached figures are explained as follows: 1. Machine body; 2. Drive mechanism; 201. Motor; 202. Gearbox; 3. Transmission mechanism; 301. Connecting shaft; 302. Cam; 303. Bearing bracket; 4. Rotating mechanism; 401. Follower wheel; 402. Support shaft; 403. Follower disc; 404. Main shaft; 5. Protective mechanism; 501. Bushing; 502. Wear-resistant sleeve; 6. Indexing plate; 7. Mounting hole. Detailed Implementation
[0015] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.
[0016] like Figures 1-3As shown, the annular shaft press-fitting automatic indexing device provided in this embodiment includes a body 1, a drive mechanism 2 is provided on the outside of the body 1, and a transmission mechanism 3 connected to the drive mechanism 2 is provided inside the body 1. A rotating mechanism 4 is connected to the outside of the transmission mechanism 3. The rotating mechanism 4 includes a following wheel 401, a support shaft 402, a following disc 403, and a main shaft 404. A protective mechanism 5 is provided on the outside of the following wheel 401. The protective mechanism 5 includes a bushing 501 that is rotatably connected to the following wheel 401. The bushing 501 can connect the following wheel 401 and the wear-resistant sleeve 502 and make the wear-resistant sleeve 502 rotate. The wear-resistant sleeve 502 is fixedly connected to the outside of the bushing 501. The wear-resistant sleeve 502 can prevent the following wheel 401 and the cam 302 from wearing.
[0017] like Figures 1-2 As shown, the drive mechanism 2 includes a motor 201 and a gearbox 202, and the output end of the motor 201 is connected to the transmission end inside the gearbox 202, so that the motor 201 can drive the gearbox 202 to work.
[0018] like Figure 2 As shown, the transmission mechanism 3 includes a connecting shaft 301 connected to the output end of the gearbox 202. A cam 302 is fixed on the outer side of the middle part of the connecting shaft 301. The cam 302 has a slot that matches the following wheel 401, so that the gearbox 202 can drive the cam 302 to rotate through the connecting shaft 301. During the rotation of the cam 302, the following wheel 401 will contact the slot on the cam 302, thereby causing the following disc 403 to rotate.
[0019] like Figure 2 As shown, a bearing bracket 303 is rotatably connected to the outside of the connecting shaft 301, and the bearing bracket 303 is fixed inside the machine body 1, so as to facilitate the support of the connecting shaft 301 and the cam 302 through the bearing bracket 303.
[0020] like Figure 2 As shown, the follower wheel 401 is fixedly connected to the follower disk 403, and the follower disk 403 is fixedly connected to the machine body 1 through the support shaft 402, so that the follower wheel 401 can drive the follower disk 403 to rotate along the support shaft 402.
[0021] like Figure 2 As shown, the main shaft 404 is fixed at the center of the follower disk 403, and the main shaft 404 passes through the top of the machine body 1, so that the follower disk 403 can drive the main shaft 404 to rotate.
[0022] like Figure 1 As shown, the indexing plate 6 is installed on the top of the spindle 404, and the indexing plate 6 is provided with mounting holes 7 for connection. External fixtures can be fixed on the indexing plate 6 through the mounting holes 7. The spindle 404 can drive the indexing plate 6 to rotate, thereby driving the ring-shaped shaft workpiece on the fixture to rotate for press fitting.
[0023] Working principle of this device: In actual use, the operator fixes the external clamp to the indexing plate 6 through the mounting hole 7. At this time, the motor 201 drives the gearbox 202 to work. The gearbox 202 then drives the connecting shaft 301 and the cam 302 to rotate along the bearing bracket 303. During the rotation of the cam 302, the following wheel 401 will contact the groove on the cam 302, thereby causing the following wheel 401 to drive the following plate 403 to rotate along the support shaft 402. The following plate 403 then drives the main shaft 404 to rotate, and the main shaft 404 then drives the indexing plate 6 to rotate. The dial 6 rotates, thereby driving the ring-shaped workpiece on the fixture to rotate for pressing. When the cam 302 contacts the follower wheel 401, the wear-resistant sleeve 502 in the protective mechanism 5 contacts the groove in the cam 302. At this time, the wear-resistant sleeve 502 contacts the side wall of the cam 302 and generates friction. The wear-resistant sleeve 502 is subjected to friction and will always rotate along the follower wheel 401 through the bushing 501, thereby reducing the friction and avoiding wear caused by the friction generated by the contact between the cam 302 and the follower wheel 401, thus avoiding affecting the indexing accuracy and the life of the equipment.
[0024] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.
Claims
1. An automatic indexing device for press-fitting ring-shaped shafts, characterized in that: The device includes a body (1), a drive mechanism (2) is provided on the outside of the body (1), a transmission mechanism (3) connected to the drive mechanism (2) is provided inside the body (1), a rotating mechanism (4) is connected to the outside of the transmission mechanism (3), the rotating mechanism (4) includes a follower wheel (401), a support shaft (402), a follower disc (403) and a main shaft (404), and a protective mechanism (5) is provided on the outside of the follower wheel (401), the protective mechanism (5) includes a bushing (501) rotatably connected to the follower wheel (401), and a wear-resistant sleeve (502) is fixedly connected to the outside of the bushing (501).
2. The annular shaft press-fitting automatic indexing device according to claim 1, characterized in that: The drive mechanism (2) includes a motor (201) and a gearbox (202), and the output end of the motor (201) is connected to the transmission end inside the gearbox (202).
3. The annular shaft press-fitting automatic indexing device according to claim 2, characterized in that: The transmission mechanism (3) includes a connecting shaft (301) connected to the output end of the gearbox (202). A cam (302) is fixed on the outer side of the middle part of the connecting shaft (301). A slot is provided on the cam (302) that matches the following wheel (401).
4. The annular shaft press-fitting automatic indexing device according to claim 3, characterized in that: The outer side of the connecting shaft (301) is rotatably connected to a bearing bracket (303), and the bearing bracket (303) is fixed inside the body (1).
5. The annular shaft press-fitting automatic indexing device according to claim 1, characterized in that: The following wheel (401) is fixedly connected to the following disc (403), and the following disc (403) is fixedly connected to the body (1) through the support shaft (402).
6. The annular shaft press-fitting automatic indexing device according to claim 1, characterized in that: The main shaft (404) is fixed at the center of the follower disk (403), and the main shaft (404) passes through the top of the body (1).
7. The annular shaft press-fitting automatic indexing device according to claim 1, characterized in that: The top of the spindle (404) is equipped with an indexing plate (6), and the indexing plate (6) is provided with mounting holes (7) for connection.