A precision bearing machining positioning fixture

Abstract

The utility model discloses a kind of precision bearing machining positioning fixtures, belong to bearing fixture technical field, including support frame and be arranged on support frame for clamping bearing inside or outside and be used for fixed clamping structure, clamping structure includes several chutes evenly opened in the inside of support frame, adjusting lead screw is rotatably installed in chute.The utility model, opening motor one can control the simultaneous control of four around double-end clamping block outward expansion or inward movement, when needing to fix bearing inside, it can be sleeved on double-end clamping block and control double-end clamping block outward movement and press the inside of bearing, at this time, bearing outside will not be blocked, otherwise, when needing to fix bearing outside, bearing can be placed between four around double-end clamping block, in control double-end clamping block inward movement and press the outside of bearing, at this time, bearing inside will not be blocked, realize to bearing inside and outside switching fixed, avoid interference when bearing assembly or inside and outside polishing processing.

Description

Technical Field

[0001] This utility model relates to the field of bearing fixture technology, specifically to a precision bearing machining positioning fixture. Background Technology

[0002] Precision bearing machining positioning fixtures are specialized tooling for achieving high-precision positioning and stable clamping of workpieces. They are used to accurately, reliably, and repeatedly position and clamp bearing rings, ensuring uniform machining allowance and resisting machining forces to prevent deformation and vibration.

[0003] Chinese Patent Publication No. CN222308655U discloses a bearing processing positioning fixture, including a fixture base, a sliding groove, a fixing tube, a fixing rod, a left-side fixture, a slide rail, a sliding connecting piece, a push rod motor, a push rod, and a right-side fixture. The fixture base has a sliding groove at its front end, within which a fixing tube for initial bearing fixation is installed via a sliding block. The left-side fixture is mounted on the left side of the fixture base via the fixing rod. A slide rail is mounted on the upper right side of the fixture base, and a sliding connecting piece is mounted on the slide rail and fixed to the slide rail via fixing bolts. A push rod motor is mounted at the bottom of the sliding connecting piece, and the right-side fixture is mounted on the left side of the push rod motor via a push rod. This utility model has a reasonable design; after fixing the inner side of the bearing with the fixing tube, the right-side fixture clamps it, and the left-side fixture, under the bearing's reaction force, also clamps the bearing. Furthermore, it can fix bearings of various specifications and sizes without frequent fixture changes.

[0004] In the aforementioned prior art, the clamping operation on the outside of the bearing can be achieved by controlling the rotating rods on both sides and their connecting parts to approach the bearing. However, this clamp can only be used to clamp and fix the outside of the bearing. If grinding or assembly operations are required on the outside of the bearing, the clamp components will block the outside of the bearing and cause interference. Furthermore, the clamp lacks effective protection measures for the end of the bearing away from the clamp base, which makes the bearing have a certain risk of falling off. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a precision bearing machining positioning fixture, thereby solving the problems mentioned in the background art. The fixture can only be used to clamp and fix the outer side of the bearing. If grinding or assembly operations are required on the outer side of the bearing, it will block the outer side of the bearing and cause interference. Furthermore, the fixture lacks effective protection measures for the end of the bearing away from the fixture base.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A precision bearing machining positioning fixture, comprising:

[0008] Support frame;

[0009] The clamping structure, arranged on the support frame, is used to clamp and fix the inner or outer side of the bearing;

[0010] A drive structure, arranged on the clamping structure, is used to adjust the clamping position of the clamping structure;

[0011] A clamping structure is arranged on the clamping structure and used in conjunction with the drive structure to press against the end face of the bearing for reinforcement.

[0012] Preferably, the clamping structure includes:

[0013] Several grooves are evenly distributed inside the support frame;

[0014] The adjusting screw is rotatably mounted within the slide groove;

[0015] A threaded slide block, which is threaded onto an adjusting screw and slidably installed in a slide groove;

[0016] A double-headed clamping block is positioned above the threaded slide block;

[0017] The bevel gear is located at one end of the adjusting screw;

[0018] A bevel gear ring is rotatably mounted on a support frame, and the bevel gear ring meshes with a bevel gear.

[0019] Two rubber heads are positioned on either side of the double-headed clamping block;

[0020] The limiting component is arranged on the bevel gear ring.

[0021] Preferably, the limiting component includes a limiting ring, which is fixedly sleeved on the support frame and rotatably installed inside the bevel gear ring.

[0022] Preferably, the clamping structure further includes two telescopic tubes, one end of which is arranged on the inner wall of the two sides of the slide groove, and the other end of which is arranged on both sides of the threaded slide block, with the adjusting screw located inside the two telescopic tubes.

[0023] Preferably, the driving structure includes:

[0024] The linkage gear ring is fixedly sleeved on the bevel gear ring;

[0025] Motor 1 is mounted on the support frame;

[0026] The linkage gear is located on the output end of motor one and meshes with the linkage gear ring.

[0027] Preferably, the clamping structure includes:

[0028] The lifting platform is slidably installed inside the support frame;

[0029] Motor 2 is mounted on the support frame;

[0030] A lifting screw is arranged on the output end of motor two and rotatably installed inside the support frame, and the lifting plate is threaded onto the lifting screw;

[0031] The U-shaped slide block is slidably installed inside the lifting plate, and the U-shaped slide block is slidably installed on the threaded slide block;

[0032] A double-headed pressure plate is located at one end of the U-shaped slide.

[0033] Preferably, the clamping structure further includes:

[0034] Two rubber pads are symmetrically arranged below the double-headed pressure plate;

[0035] The guide assembly is arranged on the U-shaped slide.

[0036] Preferably, the guide component includes:

[0037] Guide bars are arranged on the inner wall of the lifting platform, and U-shaped slide blocks are slidably installed on the guide bars;

[0038] Two guide grooves are symmetrically opened on both sides of the threaded slide block, and the U-shaped slide block is slidably installed in the two guide grooves.

[0039] The beneficial effects of this utility model are as follows:

[0040] This invention allows for the simultaneous control of the expansion or inward movement of the surrounding double-headed clamping blocks by activating a motor. When the inner side of the bearing needs to be fixed, the clamping blocks can be placed on the double-headed clamping blocks, and the blocks can be moved outward to press down on the inner side of the bearing. This will not obstruct the outer side of the bearing. Conversely, when the outer side of the bearing needs to be fixed, the bearing can be placed between the surrounding double-headed clamping blocks, and the blocks can be moved inward to press down on the outer side of the bearing. This will not obstruct the inner side of the bearing. This invention enables the switching of fixing the inner and outer sides of the bearing, adapting to the fixing of bearings of different sizes, while avoiding interference during bearing assembly or grinding of the inner and outer sides.

[0041] This invention allows the double-headed clamping block to move while simultaneously driving the U-shaped slide and the double-headed pressure plate to move. After the double-headed clamping block presses down on the inner or outer side of the bearing, the second motor can be turned on to control the double-headed pressure plate to descend and press down on the end of the bearing. This can further improve the stability of the bearing during the processing and reduce the risk of the bearing falling off. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic diagram of the structure of a precision bearing machining positioning fixture provided in an embodiment of this utility model;

[0044] Figure 2 A side view of a precision bearing machining positioning fixture provided for an embodiment of this utility model;

[0045] Figure 3 A schematic diagram of the motor structure of a precision bearing machining positioning fixture provided in this embodiment of the present utility model;

[0046] Figure 4 A cross-sectional structural diagram of a precision bearing machining positioning fixture provided for an embodiment of this utility model;

[0047] Figure 5 A schematic diagram of the lifting plate structure of a precision bearing machining positioning fixture provided in this embodiment of the utility model;

[0048] Figure 6 A schematic diagram of a U-shaped slide structure for a precision bearing machining positioning fixture provided in an embodiment of this utility model.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Support frame; 2. Slide groove; 201. Adjusting screw; 202. Threaded slide block; 203. Double-headed clamping block; 204. Bevel gear; 205. Bevel gear ring; 206. Rubber head; 207. Limiting ring; 208. Telescopic tube; 3. Linkage gear ring; 301. Motor 1; 302. Linkage gear; 4. Lifting plate; 401. Motor 2; 402. Lifting screw; 403. U-shaped slide block; 404. Double-headed pressure plate; 405. Guide bar; 406. Rubber pad; 407. Guide groove. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] Example 1:

[0053] like Figures 1 to 6 As shown, this utility model provides a precision bearing machining positioning fixture, including: a support frame 1 and a clamping structure arranged on the support frame 1 for clamping and fixing the inner or outer side of the bearing.

[0054] The clamping structure includes several grooves 2 evenly spaced inside the support frame 1, an adjusting screw 201 rotatably mounted in the grooves 2, a threaded slide block 202 threaded onto the adjusting screw 201 and slidably mounted in the grooves 2, a double-headed clamping block 203 arranged above the threaded slide block 202, a bevel gear 204 arranged at one end of the adjusting screw 201, a bevel ring 205 rotatably mounted on the support frame 1 and meshing with the bevel gear 204, two rubber heads 206 arranged on both sides of the double-headed clamping block 203, and a limiting component arranged on the bevel ring 205. Rotating the bevel ring 205 can drive the adjusting screws 201 around it to rotate simultaneously through meshing with the bevel gears 204. The rotating adjusting screws 201 can drive the double-headed clamping blocks 203 around them to move towards the outer side of the bearing simultaneously through threaded engagement with the threaded slide block 202, ultimately causing the rubber heads 206 to press against the outer side of the bearing for fixation.

[0055] The limiting component includes a limiting ring 207 fixedly sleeved on the support frame 1. The limiting ring 207 is rotatably installed inside the bevel gear ring 205. The bevel gear ring 205 can rotate on the limiting ring 207. The setting of the limiting ring 207 can prevent the rotation position of the bevel gear ring 205 from shifting.

[0056] The clamping structure also includes two telescopic tubes 208 arranged on the inner walls of both sides of the slide groove 2. One end of each telescopic tube 208 is arranged on both sides of the threaded slide block 202. The adjusting screw 201 is located inside the two telescopic tubes 208. During the movement of the threaded slide block 202, the telescopic tubes 208 on both sides will extend and retract to adapt. The setting of the telescopic tubes 208 can wrap the adjusting screw 201 to reduce the interference of dust and debris on the adjusting screw 201.

[0057] Example 2:

[0058] Based on Example 1, in order to facilitate the adjustment of the clamping position of the clamping structure so that it can adapt to bearings of different sizes, a drive structure is arranged on the clamping structure.

[0059] The drive structure includes a linkage gear ring 3 fixedly sleeved on the bevel gear ring 205, a motor 301 arranged on the support frame 1, and a linkage gear 302 arranged on the output end of the motor 301 and meshing with the linkage gear ring 3. The motor 301 is turned on to control the rotation of the linkage gear 302. The linkage gear 302 can drive the bevel gear ring 205 to rotate through meshing with the linkage gear ring 3.

[0060] Example 3:

[0061] Based on Example 1, in order to further improve the fixing effect on the bearing and achieve reinforcement by pressing on the end face of the bearing, a clamping structure that works in conjunction with the driving structure is arranged on the clamping structure.

[0062] The clamping structure includes a lifting plate 4 slidably installed inside the support frame 1, a second motor 401 arranged on the support frame 1, a lifting screw 402 arranged on the output end of the second motor 401 and rotatably installed inside the support frame 1, the lifting plate 4 being threadedly sleeved on the lifting screw 402, a U-shaped slide 403 slidably installed inside the lifting plate 4, the U-shaped slide 403 being slidably installed on the threaded slide 202, and a double-headed pressure plate 404 arranged at one end of the U-shaped slide 403. The second motor 401 is turned on to control the rotation of the lifting screw 402. The lifting screw 402 can drive the lifting plate 4 to move up and down through the threaded engagement with the lifting plate 4. The lifting plate 4 can drive the U-shaped slide 403 to move up and down through the guide bar 405, and finally drive the double-headed pressure plate 404 to press against the end face of the bearing, thereby improving the fixing effect on the bearing.

[0063] The clamping structure also includes two rubber pads 406 symmetrically arranged below the double-headed pressure plate 404 and a guide assembly arranged on the U-shaped slide 403. When the double-headed pressure plate 404 descends, it can drive the rubber pads 406 to press against the end face of the bearing, reducing damage to the bearing.

[0064] The guiding assembly includes a guide bar 405 arranged on the inner wall of the lifting plate 4, a U-shaped slide 403 slidably mounted on the guide bar 405, and two guide grooves 407 symmetrically opened on both sides of the threaded slide 202. The U-shaped slide 403 is slidably mounted in the two guide grooves 407. When the threaded slide 202 moves horizontally, it can drive the U-shaped slide 403 to move horizontally through the guide grooves 407, thereby allowing the U-shaped slide 403 to slide horizontally on the guide bar 405 on the inner wall of the lifting plate 4. When the lifting plate 4 rises and falls, it can drive the U-shaped slide 403 to rise and fall through the guide bar 405, allowing the U-shaped slide 403 to slide vertically in the guide grooves 407. The guide grooves 407 enable the U-shaped slide 403 to slide vertically on the threaded slide 202.

[0065] Working principle:

[0066] When it is necessary to clamp the outer side of the bearing for fixation, place it on the support frame 1 and between the double-headed clamping blocks 203 around it. Then, turn on the motor 301 to control the rotation of the linkage gear 302. The linkage gear 302 can drive the bevel gear ring 205 to rotate by meshing with the linkage gear ring 3. The rotating bevel gear ring 205 can drive the surrounding adjusting screws 201 to rotate simultaneously by meshing with several bevel gears 204. The rotating adjusting screws 201 can drive the threaded slide block 202 to slide in the slide groove 2 by threaded engagement with the threaded slide block 202. At the same time, during the horizontal movement of the threaded slide block 202, it can drive the U-shaped slide block 403 to move horizontally through the guide groove 407, so that the U-shaped slide block 403 can slide horizontally on the guide strip 405 on the inner wall of the lifting plate 4, so that the U-shaped slide block 403 can slide horizontally. The slide block 403 and the double-headed pressure plate 404 can move horizontally to adjust their position following the threaded slide block 202. Simultaneously, the threaded slide blocks 202 around the perimeter can drive the double-headed clamping blocks 203 around the perimeter to move towards the outer side of the bearing, ultimately causing the rubber head 206 to press against the outer side of the bearing for fixation. After completion, the motor 401 is activated to control the rotation of the lifting screw 402. The lifting screw 402 can move up and down within the support frame 1 through its threaded engagement with the lifting plate 4. When the lifting plate 4 rises and falls, it can drive the U-shaped slide block 403 to slide vertically within the guide groove 407 via the guide bar 405. This allows the U-shaped slide block 403 to drive the double-headed pressure plate 404 and the rubber pad 406 to descend, ultimately causing the rubber pad 406 to press against the end face of the bearing, improving the fixing effect on the bearing. (Reference) Figure 1 state.

[0067] Conversely, if it is necessary to fix the inner side of the bearing, the bearing can be placed on the support frame 1 so that its inner side wraps around the double-headed clamping blocks 203. At this time, control the linkage gear 302 to rotate in the opposite direction to drive the double-headed clamping blocks 203 to expand outward, so that the rubber head 206 presses against the inner wall of the bearing. Then, control the double-headed pressure plate 404 to descend and press the bearing end face. (Refer to...) Figure 4 When the rubber head 206 clamps the bearing, it will deform under force to fit the bearing. By adjusting the double-headed clamping block 203 to different positions, it can be adapted to clamp bearings of different sizes.

[0068] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A precision bearing machining positioning fixture, characterized in that, include: Support frame (1); The clamping structure is arranged on the support frame (1) and is used to clamp the inner or outer side of the bearing for fixation; A drive structure, arranged on the clamping structure, is used to adjust the clamping position of the clamping structure; A clamping structure is arranged on the clamping structure and used in conjunction with the drive structure to press against the end face of the bearing for reinforcement.

2. The precision bearing machining positioning fixture as described in claim 1, characterized in that, The clamping structure includes: Several grooves (2) are evenly distributed inside the support frame (1); Adjusting screw (201) is rotatably installed in slide groove (2); The threaded slide block (202) is threaded onto the adjusting screw (201) and slidably installed in the slide groove (2); A double-headed clamping block (203) is arranged above the threaded slide block (202); A bevel gear (204) is arranged at one end of the adjusting screw (201); A bevel gear ring (205) is rotatably mounted on a support frame (1), and the bevel gear ring (205) meshes with a bevel gear (204); Two rubber heads (206) are respectively arranged on both sides of the double-headed clamp (203).

3. The precision bearing machining positioning fixture as described in claim 2, characterized in that, A limiting component is arranged on the bevel gear ring (205).

4. The precision bearing machining positioning fixture as described in claim 3, characterized in that, The limiting component includes a limiting ring (207), which is fixedly sleeved on the support frame (1) and rotatably installed inside the bevel gear ring (205).

5. A precision bearing machining positioning fixture as described in claim 1, characterized in that, The clamping structure also includes two telescopic tubes (208), one end of which is arranged on the inner wall of the two sides of the slide groove (2), and the other end of which is arranged on the two sides of the threaded slide (202). The adjusting screw (201) is located inside the two telescopic tubes (208).

6. The precision bearing machining positioning fixture as described in claim 1, characterized in that, The driving structure includes: The linkage gear ring (3) is fixedly sleeved on the bevel gear ring (205); Motor 1 (301) is arranged on support frame (1); The linkage gear (302) is arranged on the output end of the motor (301) and meshes with the linkage gear ring (3).

7. A precision bearing machining positioning fixture as described in claim 1, characterized in that, The clamping structure includes: The lifting plate (4) is slidably installed inside the support frame (1); Motor 2 (401) is arranged on support frame (1); The lifting screw (402) is arranged on the output end of the second motor (401) and rotatably installed inside the support frame (1). The lifting plate (4) is threaded onto the lifting screw (402).

8. A precision bearing machining positioning fixture as described in claim 7, characterized in that, The lifting plate (4) has a U-shaped slide (403) inside, which is slidably mounted on the threaded slide (202). A double-headed pressure plate (404) is arranged at one end of the U-shaped slide (403).

9. A precision bearing machining positioning fixture as described in claim 8, characterized in that, The clamping structure also includes: Two rubber pads (406) are symmetrically arranged below the double-headed pressure plate (404); The guide assembly is arranged on the U-shaped slide (403).

10. A precision bearing machining positioning fixture as described in claim 9, characterized in that, The guiding component includes: Guide bar (405) is arranged on the inner wall of lifting plate (4), and U-shaped slide (403) is slidably installed on guide bar (405); Two guide grooves (407) are symmetrically opened on both sides of the threaded slide (202), and the U-shaped slide (403) is slidably installed in the two guide grooves (407).

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