Grinding equipment for bearing outer ring machining

Abstract

The invention discloses grinding equipment for bearing outer ring machining, and relates to the technical field of grinding, the grinding equipment comprises a supporting frame, a control box is arranged at the top of the supporting frame, a grinding head is arranged in the control box, an electric slider is arranged at the top of the supporting frame, and a limiting frame is fixedly connected to the top of the supporting frame; an inner support clamping mechanism is arranged at the top of the electric slider; by arranging the inner support clamping mechanism, during use, a bearing outer ring is placed on a limiting frame, an electric slider is started to drive a connecting fixing column and a connecting rod to an inner support sleeve and move to the middle of the bearing outer ring, four first telescopic rods on the outer wall of the inner support sleeve are started, and the four first telescopic rods synchronously extend; the inner wall of the bearing outer ring is clamped and fastened, the numerical control box drives the grinding head to rotate, and the grinding head automatically moves to complete grinding of the outer wall.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, specifically to a grinding device for machining the outer ring of a bearing. Background Technology

[0002] Grinding is a type of surface modification technology. It generally refers to a processing method that uses rough objects, such as sandpaper containing high-hardness particles, to change the physical properties of a material surface through friction. Its main purpose is to obtain a specific surface roughness.

[0003] A grinding device for machining the outer ring of a bearing, as described in patent application CN120228604A, includes a support base. A fixed platform and a hydraulic cylinder are respectively installed at the bottom and top of the support base. A moving mechanism is installed on the front of the support base. A moving frame is fixedly installed at the telescopic end of the hydraulic cylinder. A second motor is installed on the front of the moving frame. Rollers are rotatably installed inside the moving frame.

[0004] During the grinding process, the workpiece is usually fixed in one position and cannot rotate on its own. To grind the entire outer wall of the workpiece, it is necessary to constantly adjust the position and movement trajectory of the grinding tool, or frequently rotate the workpiece manually. This not only increases the complexity of the operation, but also easily leads to uneven grinding, resulting in local over-grinding or under-grinding. Moreover, changing fixtures may require readjusting the equipment parameters and grinding program, further reducing production efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a grinding device for machining bearing outer rings, thereby solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a grinding device for processing the outer ring of a bearing, comprising a support frame, a control box provided on the top of the support frame, a grinding head provided inside the control box, an electric slider provided on the top of the support frame, a limit frame fixedly connected to the top of the support frame, and an inner support clamping mechanism provided on the top of the electric slider; The internal support clamping mechanism includes: A connecting and fixing column is fixedly connected to the top of the electric slider. A connecting rod is fixedly connected to one end of the connecting and fixing column, and an inner support sleeve is fixedly connected to the end of the connecting rod away from the connecting and fixing column. A linkage shaft is provided, one end of which is rotatably connected to the outer wall of the inner support sleeve. There are four linkage shafts, which are evenly arranged on the outer wall of the inner support sleeve. One end of the linkage shaft is fixedly connected to a first telescopic rod, and an electric wire is fixedly connected to the outer wall of the first telescopic rod.

[0007] Preferably, a triangular support is fixedly connected to one end of the first telescopic rod, and two fixed rods are fixedly connected to both sides of the triangular support. A rotating connector is rotatably connected to the outer wall of the fixed rod through a bearing.

[0008] Preferably, one end of the rotating connector is fixedly connected to a card holder, and a roller is rotatably connected to the inner wall of the card holder, with two-thirds of the roller embedded inside the card holder.

[0009] Preferably, the outer wall of the connecting rod is provided with a steering mechanism, the steering mechanism including an electric actuator, the inner wall of the electric actuator being fixedly connected to the outer wall of the connecting rod, the inner wall of the electric actuator being slidably connected to a first telescopic ring, and the inner wall of the first telescopic ring being slidably connected to a second telescopic ring.

[0010] Preferably, a sliding block is fixedly connected to one end of the second telescopic ring, the outer wall of the connecting rod is slidably connected to the inner wall of the sliding block, and the inner wall of the inner support sleeve is slidably connected to the outer wall of the sliding block.

[0011] Preferably, a bearing ring is fixedly connected to the outer wall of the inner support sleeve, one end of the linkage shaft is fixedly connected to the inner wall of the bearing ring, and a second telescopic rod is fixedly connected to the outer wall of the inner support sleeve.

[0012] Preferably, a semicircular block is fixedly connected to the end of the second telescopic rod away from the outer wall of the inner support sleeve, and a rotating paddle is slidably connected to the inner wall of the semicircular block through a groove.

[0013] Preferably, one end of the rotating paddle is fixedly connected to a limiting block, and the inner wall of the rotating paddle, the inner wall of the limiting block, and the outer wall of the linkage shaft are fixedly connected.

[0014] This invention provides a grinding device for machining bearing outer rings. It has the following advantages: 1. The present invention sets up an internal support clamping mechanism, which is activated by four first telescopic rods on the outer wall of the internal support sleeve. The four first telescopic rods extend synchronously to clamp and fasten the inner wall of the outer ring of the bearing. The grinding head is driven to rotate by the CNC control box and moves on its own to complete the grinding of the outer wall. 2. By setting an internal support clamping mechanism, the outer ring of the bearing will slowly rotate on its own when being polished by the grinding head due to the limitation of friction between the roller and the card seat. Thus, during the initial polishing of the outer ring of the bearing, there is no need to operate the movement of the grinding head and the control box. The outer ring of the bearing can slowly rotate on its own to be polished by the grinding head. No manual operation is required, and the overall operation difficulty is low, which improves the convenience of the initial polishing of the outer ring of the bearing. 3. By setting an internal support clamping mechanism, the present invention can drive the grinding head through the CNC control box to grind the outer ring of the bearing in a comprehensive manner, realizing distributed grinding, fixed-point grinding and full-surface fine grinding operations. It can use different clamping strategies between preliminary grinding and fine grinding, and achieve the most effective clamping and stabilizing method for different grinding methods, thereby improving the efficiency of preliminary grinding and the stability of fine grinding. Moreover, there is no need to change the fixture, the operation is simple and fast, and the overall grinding work efficiency is improved. 4. By setting an internal support clamping mechanism, the roller and the inner wall of the bearing outer ring have formed a dynamic engagement. By rotating the bearing connection between the connecting piece and the fixing rod, the roller can adaptively and finely adjust the angle according to the curvature of the bearing outer ring while it is in contact with the bearing outer ring, ensuring that the engagement surface is always in close contact with the inner wall of the bearing outer ring without gaps, and further avoiding the situation of unstable fixation caused by violent shaking during grinding. 5. This invention, by setting an internal support clamping mechanism, controls the rotational position of the linkage shaft, triangular support base, and roller, thereby conveniently controlling the quick switching between two states of clamping and fastening the bearing outer ring and allowing rotation during clamping. This allows workers to stably clamp the bearing outer ring while rotating it to check the grinding status of various parts of the outer wall of the bearing in real time, and to perform subsequent inspection work on the bearing outer ring. This avoids the time and work efficiency wasted by the need to frequently remove and readjust the bearing outer ring and clamp it again when adjusting its position with traditional clamps. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the electric slider of the present invention; Figure 3 This is a schematic diagram of the structure of the limiting frame of the present invention; Figure 4 This is a schematic diagram of the internal support clamping mechanism of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the disassembled structure of the internal support clamping mechanism of the present invention; Figure 6 This is a schematic diagram of the internal support clamping mechanism of the present invention. Figure 2 ; Figure 7 For the present invention Figure 6 Enlarged view of point A; Figure 8 This is a schematic diagram of the internal support clamping mechanism of the present invention. Figure 3 ; Figure 9 For the present invention Figure 6 Enlarged view of point B; Figure 10This is a schematic diagram of the steering mechanism of the present invention.

[0016] In the diagram: 1. Support frame; 2. Control box; 3. Internal support clamping mechanism; 301. Connecting fixed column; 302. Connecting rod; 303. Internal support sleeve; 304. Linkage shaft; 305. First telescopic rod; 306. Triangular support seat; 307. Fixed rod; 308. Rotating connector; 309. Card seat; 310. Roller; 311. Wire; 4. Steering mechanism; 401. Electric actuator; 402. First telescopic ring; 403. Second telescopic ring; 404. Sliding block; 405. Second telescopic rod; 406. Semicircular block; 407. Rotating paddle; 408. Limiting block; 409. Bearing ring; 5. Grinding head; 6. Electric slider; 7. Bearing outer ring; 8. Limiting frame. Detailed Implementation

[0017] Example 1: Please refer to Figure 1-3 The present invention provides a technical solution: a grinding device for processing the outer ring of a bearing, including a support frame 1, a control box 2 is provided on the top of the support frame 1, a grinding head 5 is provided inside the control box 2, an electric slider 6 is provided on the top of the support frame 1, a limit frame 8 is fixedly connected to the top of the support frame 1, and an inner support clamping mechanism 3 is provided on the top of the electric slider 6. The internal support clamping mechanism 3 includes; A connecting fixed column 301 is fixedly connected to the top of the electric slider 6. A connecting rod 302 is fixedly connected to one end of the connecting fixed column 301. An inner support sleeve 303 is fixedly connected to the end of the connecting rod 302 away from the connecting fixed column 301. A linkage shaft 304 is rotatably connected to the outer wall of the inner support sleeve 303 at one end. There are four linkage shafts 304, which are evenly arranged on the outer wall of the inner support sleeve 303. A first telescopic rod 305 is fixedly connected to one end of the linkage shaft 304, and an electric wire 311 is fixedly connected to the outer wall of the first telescopic rod 305. In use, the outer ring 7 of the bearing is placed on the limiting frame 8. The electric slider 6 is started to drive the connecting fixing column 301 and the connecting rod 302 to the inner support sleeve 303 and move to the middle of the outer ring 7. The four first telescopic rods 305 on the outer wall of the inner support sleeve 303 are started and the four first telescopic rods 305 extend synchronously to clamp and secure the inner wall of the outer ring 7. The grinding head 5 is driven to rotate by the CNC control box 2 and moves by itself to complete the grinding of the outer wall. Example 2: Please refer to Figure 1-8 Based on Embodiment 1, the present invention provides a technical solution: a triangular support base 306 is fixedly connected to one end of the first telescopic rod 305, and two fixed rods 307 are fixedly connected to both sides of the triangular support base 306 respectively. A rotating connecting member 308 is rotatably connected to the outer wall of the fixed rod 307 through a bearing.

[0018] One end of the rotating connector 308 is fixedly connected to a card holder 309, and a roller 310 is rotatably connected to the inner wall of the card holder 309. Two-thirds of the roller 310 is embedded inside the card holder 309.

[0019] When clamping the outer ring 7 of the bearing is required, the first telescopic rod 305 is extended, pushing the triangular support 306 and the roller 310 against the inner wall of the outer ring 7 to complete the clamping. The roller 310 adaptively fits along the groove on the inner wall of the outer ring 7, ensuring a uniform distribution of clamping force. Simultaneously, the free rotation of the roller 310 within the support 309 allows the outer ring 7 to rotate autonomously while clamped. When the grinding head 5 is driven by the control box 2 to grind the outer wall of the outer ring 7, the grinding head 5 grinds the outer ring 7. During grinding, the grinding head 5 can stop at any position on the outer wall of the outer ring 7 for rapid rotation and grinding. The outer ring 7 is driven by the rotation of the grinding head 5, causing the outer ring 7 to rotate... The bearing is rotated by four rolling rollers 310. There is a large friction between the rollers 310 and the cassette 309. Therefore, when the grinding head 5 grinds the outer wall of the bearing outer ring 7, the bearing outer ring 7 will not rotate synchronously with the grinding head 5 due to static friction. Instead, due to the limitation of the friction between the rollers 310 and the cassette 309, the bearing outer ring 7 will slowly rotate on its own when being ground by the grinding head 5. Thus, during the initial grinding of the bearing outer ring 7, there is no need to operate the movement of the grinding head 5 and the control box 2. The bearing outer ring 7 can slowly rotate on its own to be ground by the grinding head 5. No manual operation is required, and the overall operation difficulty is low, which improves the convenience of the initial grinding of the bearing outer ring 7. Example 3: Please refer to Figure 1-10 Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: a steering mechanism 4 is provided on the outer wall of the connecting rod 302. The steering mechanism 4 includes an electric pusher 401. The inner wall of the electric pusher 401 is fixedly connected to the outer wall of the connecting rod 302. A first telescopic ring 402 is slidably connected to the inner wall of the electric pusher 401. A second telescopic ring 403 is slidably connected to the inner wall of the first telescopic ring 402.

[0020] The second telescopic ring 403 is fixedly connected to a sliding block 404 at one end. The outer wall of the connecting rod 302 is slidably connected to the inner wall of the sliding block 404, and the inner wall of the inner support sleeve 303 is slidably connected to the outer wall of the sliding block 404.

[0021] A bearing ring 409 is fixedly connected to the outer wall of the inner support sleeve 303, one end of the linkage shaft 304 is fixedly connected to the inner wall of the bearing ring 409, and a second telescopic rod 405 is fixedly connected to the outer wall of the inner support sleeve 303.

[0022] The end of the second telescopic rod 405 away from the outer wall of the inner support sleeve 303 is fixedly connected to a semi-circular block 406, and the inner wall of the semi-circular block 406 is slidably connected to a rotating paddle 407 through a groove.

[0023] One end of the rotating paddle 407 is fixedly connected to the limiting block 408, and the inner wall of the rotating paddle 407 and the inner wall of the limiting block 408 are fixedly connected to the outer wall of the linkage shaft 304.

[0024] When fine grinding of the outer ring 7 of the bearing is required, the electric pusher 401 is activated to extend the first telescopic ring 402 and the second telescopic ring 403. The second telescopic ring 403 pushes the sliding block 404 into the inner support sleeve 303. The sliding block 404 squeezes the hydraulic oil in the inner support sleeve 303, pushing the hydraulic oil in the inner support sleeve 303 into the second telescopic rod 405. The second telescopic rod 405 then extends and drives the semicircular block 406 to move along the outer wall of the linkage shaft 304. This causes the rotating paddle 407 and the linkage shaft 304 to rotate synchronously along the downward trajectory of the semicircular block 406. The limiting block 408 plays a limiting role, effectively preventing the semicircular block 406 from sliding excessively and disengaging from the rotating paddle 407. When the linkage shaft 304 rotates, it drives the triangular support seat. 306. Roller 310 deflects at 90 degrees, making its rotation direction perpendicular to that of the bearing outer ring 7. The roller 310 on the four triangular support seats 306 forms a dynamic engagement with the inner wall of the bearing outer ring 7, firmly fixing the bearing outer ring 7 and completely eliminating any slight deviation that may occur during fine grinding. Subsequently, the grinding head 5 can be driven by the CNC control box 2 to grind the bearing outer ring 7 comprehensively, realizing distributed grinding, fixed-point grinding, and full-surface fine grinding operations. Different clamping strategies can be used between preliminary grinding and fine grinding to achieve the most effective clamping and stabilizing method for different grinding methods, thereby improving the efficiency of preliminary grinding and the stability of fine grinding. Moreover, there is no need to change the fixture, the operation is simple and fast, and the overall grinding work efficiency is improved. When fixing the outer ring 7 of the bearing before fine grinding, the roller 310 and the inner wall of the outer ring 7 of the bearing have formed a dynamic engagement. By rotating the bearing connection between the connecting piece 308 and the fixing rod 307, the roller 310 can adaptively and finely adjust the angle according to the curvature of the outer ring 7 of the bearing while it is in contact with the outer ring 7 of the bearing, ensuring that the engagement surface is always in close contact with the inner wall of the outer ring 7 of the bearing without gaps, and further avoiding the situation of insecure fixing caused by violent shaking during grinding. Meanwhile, when staff need to observe the grinding condition of the outer wall of the bearing outer ring 7, or adjust its position for subsequent testing, the sliding block 404 can slide in and out of the inner support sleeve 303 by activating the electric pusher 401. This controls the rotation position of the linkage shaft 304, the triangular support seat 306, and the roller 310, allowing for convenient control and quick switching between the two states of clamping and rotating the bearing outer ring 7. This enables staff to stably clamp the bearing outer ring 7 while rotating it to check the grinding condition of its outer wall in real time and perform subsequent testing. This avoids the waste of time and work efficiency caused by the need to frequently remove and readjust the bearing outer ring 7 when adjusting its position, as is common with traditional clamps.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A grinding device for machining the outer ring of a bearing, comprising a support frame (1), a control box (2) disposed on the top of the support frame (1), a grinding head (5) disposed inside the control box (2), an electric slider (6) disposed on the top of the support frame (1), and a limit frame (8) fixedly connected to the top of the support frame (1), characterized in that: The electric slider (6) is provided with an inner support clamping mechanism (3) at the top. The internal support clamping mechanism (3) includes: A connecting fixed column (301) is fixedly connected to the top of the electric slider (6). A connecting rod (302) is fixedly connected to one end of the connecting fixed column (301), and an inner support sleeve (303) is fixedly connected to the end of the connecting rod (302) away from the connecting fixed column (301). A linkage shaft (304) is provided, one end of which is rotatably connected to the outer wall of the inner support sleeve (303). There are four linkage shafts (304), which are evenly arranged on the outer wall of the inner support sleeve (303). One end of the linkage shaft (304) is fixedly connected to a first telescopic rod (305), and an electric wire (311) is fixedly connected to the outer wall of the first telescopic rod (305).

2. The grinding equipment for machining bearing outer rings according to claim 1, characterized in that: One end of the first telescopic rod (305) is fixedly connected to a triangular support base (306), and two fixed rods (307) are fixedly connected to both sides of the triangular support base (306). The outer wall of the fixed rod (307) is rotatably connected to a rotating connector (308) through a bearing.

3. The grinding equipment for machining bearing outer rings according to claim 2, characterized in that: One end of the rotating connector (308) is fixedly connected to a card holder (309), and a roller (310) is rotatably connected to the inner wall of the card holder (309). Two-thirds of the roller (310) is embedded inside the card holder (309).

4. The grinding equipment for machining bearing outer rings according to claim 3, characterized in that: The outer wall of the connecting rod (302) is provided with a steering mechanism (4), the steering mechanism (4) includes an electric actuator (401), the inner wall of the electric actuator (401) is fixedly connected to the outer wall of the connecting rod (302), the inner wall of the electric actuator (401) is slidably connected to a first telescopic ring (402), and the inner wall of the first telescopic ring (402) is slidably connected to a second telescopic ring (403).

5. The grinding equipment for machining bearing outer rings according to claim 4, characterized in that: The second telescopic ring (403) is fixedly connected to a sliding block (404) at one end. The outer wall of the connecting rod (302) is slidably connected to the inner wall of the sliding block (404), and the inner wall of the inner support sleeve (303) is slidably connected to the outer wall of the sliding block (404).

6. The grinding equipment for machining bearing outer rings according to claim 5, characterized in that: The outer wall of the inner support sleeve (303) is fixedly connected to a bearing ring (409), one end of the linkage shaft (304) is fixedly connected to the inner wall of the bearing ring (409), and the outer wall of the inner support sleeve (303) is fixedly connected to a second telescopic rod (405).

7. A grinding device for machining bearing outer rings according to claim 6, characterized in that: The second telescopic rod (405) is fixedly connected to a semi-circular block (406) at one end away from the outer wall of the inner support sleeve (303), and a rotating paddle (407) is slidably connected to the inner wall of the semi-circular block (406) through a groove.

8. A grinding device for machining bearing outer rings according to claim 7, characterized in that: One end of the rotating paddle (407) is fixedly connected to a limiting block (408), and the inner wall of the rotating paddle (407), the inner wall of the limiting block (408), and the outer wall of the linkage shaft (304) are fixedly connected.

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