A support fixture for planetary carrier groove grinding

Abstract

This utility model relates to a support fixture for planetary carrier groove grinding, belonging to the technical field of planetary carrier groove grinding. The support fixture includes: a grinding machine workpiece shaft; and a fixture mechanism. The fixture mechanism includes a fixture seat mounted on one end of the grinding machine workpiece shaft, and a fixture cover at the other end of the fixture seat. A first bolt is threaded onto the inner wall of the fixture cover, and the surface of the first bolt is threaded onto the inner wall of the fixture seat. A limit cover, a limit bracket, and a resistance block are slidably connected to the inner wall of the fixture cover. One end of the inner wall of the limit cover abuts against one end of the first bolt, and the surface of the limit bracket is engaged with the inner wall of the limit cover. Through the cooperation of the fixture seat, the fixture cover, and the first bolt, the planetary carrier workpiece is positioned in both the plane and the inner hole, thereby achieving the concentricity requirement of the two grooves of the planetary carrier workpiece and ensuring the grinding effect of the planetary carrier workpiece's grooves.

Description

Technical Field

[0001] This utility model relates to the field of planetary carrier groove grinding technology, and in particular to a support tooling for planetary carrier groove grinding. Background Technology

[0002] The planetary carrier is an important component of the RV reducer. Current designs integrate the inner ring groove of the angular contact ball bearing onto the planetary carrier. During the grinding of the outer groove of the planetary carrier, the planetary carrier workpiece is usually fixed on a support fixture, and the outer groove of the planetary carrier workpiece is precision ground by a CNC cylindrical grinding machine.

[0003] When grinding the inner ring groove of a bearing using a traditional CNC grinding machine, the positioning reference is the plane and the groove. However, when grinding planetary carrier workpieces, positioning with the outer diameter and the plane cannot meet the concentricity requirements of the two grooves of the planetary carrier, thus affecting the grinding effect of the groove of the planetary carrier workpiece. Utility Model Content

[0004] Therefore, it is necessary to provide a support fixture for grinding the planetary carrier grooves, addressing the problem that the outer diameter and planar positioning cannot meet the concentricity requirements of the two grooves of the planetary carrier.

[0005] Includes: a grinding machine workpiece shaft; a tooling mechanism, the tooling mechanism including a tooling seat installed at one end of the grinding machine workpiece shaft, the other end of the tooling seat being provided with a tooling cover, the inner wall of the tooling cover being threadedly connected to a first bolt, the surface of the first bolt being threadedly connected to the inner wall of the tooling seat.

[0006] In one embodiment, a limiting cover is slidably connected to the inner wall of the tooling gland, and one end of the inner wall of the limiting cover abuts against one end of the first bolt.

[0007] In one embodiment, a limiting frame is slidably connected to the inner wall of the tooling cover, and the surface of the limiting frame is engaged with the inner wall of the limiting cover.

[0008] In one embodiment, a resistance block is slidably connected to the inner wall of the tooling cover, and the bottom of the resistance block contacts the top of the limiting frame.

[0009] In one embodiment, a first magnetic block is embedded on both sides of the resistance block, and a second magnetic block is fixedly connected to both sides of the inner wall of the tooling cover, wherein the first magnetic block and the second magnetic block are attracted to each other by opposite poles.

[0010] In one embodiment, one end of the tooling cover is fixedly connected to an intercepting pad, and the rear end of the intercepting pad contacts the front end of the resistance block.

[0011] In one embodiment, a spring is fixedly connected to the end of the limiting frame, and the top end of the spring is fixedly connected to the inner wall of the tooling cover.

[0012] In one embodiment, the inner wall of the tooling base is threaded with an annularly distributed second bolt, the surface of which is threaded to the inner wall of the grinding machine workpiece shaft.

[0013] In one embodiment, a positioning ring is engaged with the inner wall of the tooling base, with one end of the positioning ring contacting one end of the second bolt. The positioning ring locks the second bolt in place, ensuring its stable installation on the tooling base and the grinding machine workpiece shaft, thereby guaranteeing the stability of the tooling base mounted on the grinding machine workpiece shaft.

[0014] In one embodiment, a limiting rope is fixedly connected to one end of the limiting cover, and the other end of the limiting rope is fixedly connected to one end of the tooling cover. The limiting rope restricts the placement range of the limiting cover, avoiding the risk of the limiting cover being lost.

[0015] Beneficial effects

[0016] 1. By cooperating with the tooling base, tooling cover and the first bolt, the planetary carrier workpiece is positioned in plane and inner hole, thereby achieving the concentricity requirement of the two grooves of the planetary carrier workpiece and ensuring the groove grinding effect of the planetary carrier workpiece.

[0017] 2. By cooperating with the limiting cover, limiting frame, resistance block, first magnetic block, second magnetic block and intercepting pad, the first bolt is locked, thereby achieving stable contact between the tooling cover and one end of the planetary carrier workpiece and stable installation on the tooling seat, thus ensuring the stable positioning of the planetary carrier workpiece and ensuring the groove grinding effect of the planetary carrier workpiece. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 Exploded view of the tooling base and working pressure cover of this utility model;

[0021] Figure 3 This is a schematic diagram of the tooling mechanism structure of this utility model;

[0022] Figure 4 This is an exploded view of the tooling base and positioning ring of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0024] Figure label:

[0025] 100. Grinding machine workpiece shaft; 200. Tooling mechanism; 201. Tooling base; 202. Tooling cover; 203. First bolt; 204. Second bolt; 205. Positioning ring; 206. Limiting cover; 207. Limiting frame; 208. Spring; 209. Resistance block; 210. First magnetic block; 211. Second magnetic block; 212. Intercepting pad; 213. Limiting rope. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The following is combined Figures 1-5 This invention describes a support fixture for planetary carrier groove grinding.

[0028] In one embodiment, a support fixture for planetary carrier groove grinding includes: a grinding machine workpiece shaft 100; a fixture mechanism 200, the fixture mechanism 200 including a fixture seat 201 mounted on one end of the grinding machine workpiece shaft 100, a fixture cover 202 provided at the other end of the fixture seat 201, a first bolt 203 threadedly connected to the inner wall of the fixture cover 202, and the surface of the first bolt 203 threadedly connected to the inner wall of the fixture seat 201.

[0029] It should be noted that the workpiece shaft 100 of the grinding machine is mounted on the CNC cylindrical grinding machine by bolts or other means.

[0030] In this embodiment, when grinding the outer circular groove of the planetary carrier workpiece, a tooling seat 201 adapted to the planetary carrier workpiece is selected and installed at one end of the workpiece shaft 100 of the grinding machine. The inner wall of the planetary carrier workpiece is clamped on the surface of the tooling seat 201. A tooling cover 202 adapted to the planetary carrier workpiece is selected and clamped on the inner wall of the planetary carrier workpiece. The first bolt 203 is threaded into the tooling cover 202 and the tooling seat 201 by using an electric wrench, thereby clamping and positioning the planetary carrier workpiece.

[0031] The CNC cylindrical grinding machine sets various machining parameters in the CNC system according to the size, shape, and machining accuracy requirements of the planetary carrier grooves. These parameters include the grinding wheel speed, feed rate, and depth of cut. Rough grinding is performed using a larger depth of cut and feed rate to quickly remove most of the excess material from the surface of the planetary carrier workpiece's grooves. After rough grinding, finish grinding is performed. The depth of cut and feed rate are reduced, while the grinding wheel speed is increased to achieve higher dimensional accuracy and surface quality. The finished planetary carrier workpiece is then cleaned to remove grinding fluid, grinding debris, and other impurities before being transported to the next processing stage.

[0032] like Figure 5 As shown, a limiting cover 206 is slidably connected to the inner wall of the tooling cover 202. One end of the inner wall of the limiting cover 206 abuts against one end of the first bolt 203. A limiting frame 207 is slidably connected to the inner wall of the tooling cover 202. The surface of the limiting frame 207 is engaged with the inner wall of the limiting cover 206. A resistance block 209 is slidably connected to the inner wall of the tooling cover 202. The bottom of the resistance block 209 contacts the top of the limiting frame 207. First magnetic blocks 210 are embedded on both sides of the resistance block 209. A second magnetic block 211 is fixedly connected to both sides. The first magnetic block 210 and the second magnetic block 211 attract each other with opposite poles. An intercepting pad 212 is fixedly connected to one end of the tooling cover 202. The rear end of the intercepting pad 212 contacts the front end of the resistance block 209. A spring 208 is fixedly connected to the end of the limiting frame 207. The top end of the spring 208 is fixedly connected to the inner wall of the tooling cover 202. A limiting rope 213 is fixedly connected to one end of the limiting cover 206. The other end of the limiting rope 213 is fixedly connected to one end of the tooling cover 202.

[0033] The limit frame 207, the resistance block 209, and the interception pad 212 are all rubber components, which have high elasticity, good flexibility, and a large coefficient of friction.

[0034] In this embodiment, the limiting cover 206 is slid into the tooling cover 202 and abuts against one end of the first bolt 203, loosening the limiting frame 207. The elastic force of the spring 208 pushes the limiting frame 207 down and locks it in the limiting cover 206. Because one end of the resistance block 209 is round, the resistance block 209 can be flipped in the tooling cover 202. After the resistance block 209 is flipped to a suitable angle, the intercepting pad 212 is pulled to deform, pushing the resistance block 209 into the tooling cover 202, so that the first magnetic block 210 is attracted to one side of the second magnetic block 211, loosening the limiting of the intercepting pad 212. The elastic force of the intercepting pad 212 resets and abuts against the front end of the resistance block 209, so that the bottom of the resistance block 209 is stably abutting against the top of the limiting frame 207.

[0035] like Figure 4As shown, the inner wall of the tooling base 201 is threaded with a ring of second bolts 204. The surface of the second bolts 204 is threaded to the inner wall of the workpiece shaft 100 of the grinding machine. The inner wall of the tooling base 201 is fitted with a positioning ring 205, one end of which contacts one end of the second bolts 204.

[0036] In this embodiment, an electric wrench is used to thread the four second bolts 204 one by one into the fixture 201 and the grinding machine workpiece shaft 100, so that the fixture 201 is fixed to one end of the grinding machine workpiece shaft 100, and the positioning ring 205 is stuck in the fixture 201 and abuts against one end of the second bolts 204.

[0037] Working principle: The inner wall of the planetary carrier workpiece is clamped onto the surface of the fixture 201 and abuts against one end of the positioning ring 205. The fixture cover 202 is clamped onto the inner wall of the planetary carrier workpiece. The first bolt 203 is threaded into the fixture cover 202 and the fixture 201 using an electric wrench. The limiting cover 206 is slid into the fixture cover 202 and abuts against one end of the first bolt 203, loosening the limiting bracket 207. The elastic force of the spring 208 pushes the limiting bracket 207 downward and... Once the resistance block 209 is tilted to the appropriate angle after being locked inside the limiting cover 206, the intercepting pad 212 is pulled to deform, pushing the resistance block 209 into the tooling cover 202. This causes the first magnetic block 210 to be attracted to one side of the second magnetic block 211, loosening the limiting of the intercepting pad 212. The elastic force of the intercepting pad 212 returns to its original position and abuts against the front end of the resistance block 209, so that the bottom of the resistance block 209 is stably abutting against the top of the limiting frame 207, thereby clamping and positioning the planetary carrier workpiece.

[0038] It should be noted that the workpiece shaft 100, tooling seat 201, tooling cover 202, first bolt 203, second bolt 204, first magnetic block 210 and second magnetic block 211 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A support fixture for planetary carrier groove grinding, characterized in that, include: Grinding machine workpiece shaft (100); The tooling mechanism (200) includes a tooling seat (201) installed at one end of the workpiece shaft (100) of the grinding machine, and a tooling cover (202) provided at the other end of the tooling seat (201). A first bolt (203) is threadedly connected to the inner wall of the tooling cover (202), and the surface of the first bolt (203) is threadedly connected to the inner wall of the tooling seat (201).

2. The support fixture for planetary carrier groove grinding according to claim 1, characterized in that, The inner wall of the tooling cover (202) is slidably connected to a limiting cover (206), and one end of the inner wall of the limiting cover (206) abuts against one end of the first bolt (203).

3. The support fixture for planetary carrier groove grinding according to claim 2, characterized in that, The inner wall of the tooling cover (202) is slidably connected to a limiting frame (207), and the surface of the limiting frame (207) is engaged with the inner wall of the limiting cover (206).

4. The support fixture for planetary carrier groove grinding according to claim 2, characterized in that, The inner wall of the tooling cover (202) is slidably connected to a resistance block (209), and the bottom of the resistance block (209) contacts the top of the limiting frame (207).

5. The support fixture for planetary carrier groove grinding according to claim 4, characterized in that, The first magnetic block (210) is embedded in both sides of the resistance block (209), and the second magnetic block (211) is fixedly connected to both sides of the inner wall of the tooling cover (202). The first magnetic block (210) and the second magnetic block (211) are attracted to each other by opposite poles.

6. The support fixture for planetary carrier groove grinding according to claim 4, characterized in that, One end of the tooling cover (202) is fixedly connected to an intercepting pad (212), and the rear end of the intercepting pad (212) contacts the front end of the resistance block (209).

7. The support fixture for planetary carrier groove grinding according to claim 6, characterized in that, A spring (208) is fixedly connected to the end of the limiting frame (207), and the top end of the spring (208) is fixedly connected to the inner wall of the tooling cover (202).

8. The support fixture for planetary carrier groove grinding according to claim 1, characterized in that, The inner wall of the tooling base (201) is threaded with a ring-shaped distribution of second bolts (204), and the surface of the second bolts (204) is threaded to the inner wall of the workpiece shaft (100) of the grinding machine.

9. The support fixture for planetary carrier groove grinding according to claim 8, characterized in that, The inner wall of the tooling base (201) is fitted with a positioning ring (205), one end of which contacts one end of the second bolt (204).

10. The support fixture for planetary carrier groove grinding according to claim 2, characterized in that, One end of the limiting cover (206) is fixedly connected to a limiting rope (213), and the other end of the limiting rope (213) is fixedly connected to one end of the tooling cover (202).

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