Grinding machine for machining inner circle of bearing

By designing the inner grinding component and fixing component of the bearing inner circle machining grinder, the problem that existing grinders cannot adapt to bearing diameters of different specifications has been solved, realizing flexible machining of the bearing inner circle and chip removal, and improving the applicability and safety of the equipment.

CN224059364UActive Publication Date: 2026-03-31TANGSHAN FENGYING MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing grinding machines are not convenient for machining the inner circle of bearings and cannot be adjusted according to the diameter of bearings of different specifications, which limits their use.

Method used

A bearing inner circle grinding machine is designed, including a grinding table, an inner circle grinding component, and a fixing component. The inner circle grinding component realizes flexible grinding of the bearing inner circle through an electric lifting frame, gear transmission, and an electric telescopic rod. The fixing component clamps the bearing through an electric push rod, and the automatic cleaning component collects grinding debris through an exhaust fan.

Benefits of technology

It enables flexible machining of the inner diameter of bearings of different diameters, improves the practicality of the equipment, and allows for timely cleaning of debris during machining, protecting the environment and the health of operators.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224059364U_ABST
    Figure CN224059364U_ABST
Patent Text Reader

Abstract

The utility model discloses a bearing inner circle machining grinding machine which comprises a grinding machine bottom table. The bearing main body is placed at the top of the grinding machine bottom table; the inner circle grinding assembly is mounted at the top of the grinding machine bottom table; the fixing assembly is arranged at the top of the grinding machine bottom table; the inner circle grinding assembly comprises an electric lifting frame, a first motor, a first gear, a rotating column, a second gear, a connecting block, an electric telescopic rod, a second motor, a connecting rod and a grinding head, the first motor is fixedly installed below the electric lifting frame, and the first gear is fixedly installed at the output end of the first motor; the top end of the rotating column is rotationally connected with the lower portion of the electric lifting frame, and the outer surface of the rotating column is fixedly sleeved with the second gear. According to the scheme, the grinding machine bottom table, the bearing body, the inner circle grinding assembly and the fixing assembly are arranged, through the structure, the inner circle of the bearing body can be machined easily, the device can adapt to bearing bodies with different diameters, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of machining grinding technology, and more specifically, to a grinding machine for machining the inner circle of a bearing. Background Technology

[0002] Bearings are key components in mechanical transmission systems, used to support shafts and reduce friction during rotation or reciprocating motion. By converting sliding friction into rolling friction, they significantly reduce frictional resistance, improve mechanical efficiency, and can withstand loads from different directions, making them widely used in various types of mechanical equipment. Bearings require grinding during the manufacturing process.

[0003] However, it still has some drawbacks in actual use. For example, existing grinding machines are not convenient for machining the inner circle of bearings. Secondly, since the diameters of bearings of different specifications are different, existing grinding machines cannot be adjusted according to the different sizes of bearings, which limits their use.

[0004] Therefore, a grinding machine for machining the inner diameter of bearings was proposed to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bearing inner circle machining grinding machine to solve the problem that the prior art machining grinding machine is not convenient for machining the inner circle of the bearing. Since the diameters of bearings of different specifications are different, the machining grinding machine cannot be adjusted according to the different sizes of the bearings, which has certain limitations in use.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a grinding machine for machining the inner diameter of bearings, comprising...

[0007] Grinding machine base;

[0008] The bearing body is placed on top of the grinding machine base;

[0009] An internal grinding assembly is mounted on top of the grinding machine's base plate;

[0010] A fixing component is disposed on top of the grinding machine base;

[0011] The inner circle grinding assembly includes an electric lifting frame, a first motor, a first gear, a rotating column, a second gear, a connecting block, an electric telescopic rod, a second motor, a connecting rod, and a grinding head. The first motor is fixedly installed below the electric lifting frame, the first gear is fixedly installed on the output end of the first motor, the top end of the rotating column is rotatably connected to the bottom of the electric lifting frame, the second gear is fixedly sleeved on the outer surface of the rotating column and meshes with the first gear, the connecting block is fixedly installed at the bottom end of the rotating column, the electric telescopic rod is fixedly installed inside the connecting block, the second motor is fixedly installed at one end of the electric telescopic rod, the top end of the connecting rod is fixedly connected to the output end of the second motor, and the grinding head is detachably installed at the bottom end of the connecting rod.

[0012] The fixing assembly includes a fixing plate, an electric push rod, and an arc-shaped clamping block. The bottom of the fixing plate is fixedly connected to the top of the grinding machine base. The electric push rod is fixedly installed on one side of the fixing plate, and the arc-shaped clamping block is fixedly installed on the end of the electric push rod away from the fixing plate.

[0013] It also includes an automatic cleaning component, which is installed inside the grinding machine base.

[0014] The automatic cleaning component includes an exhaust fan, a collection box, a filter screen, and a discharge hopper. The exhaust fan is fixedly installed inside the grinding machine base. The collection box is placed inside the grinding machine base. The suction end of the exhaust fan is fixedly connected to the inside of the collection box. The filter screen is installed at the connection between the exhaust fan and the collection box. The bottom of the discharge hopper is fixedly connected to the top of the collection box. The top of the discharge hopper is fixedly connected to the top of the grinding machine base.

[0015] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0016] In the above scheme, a grinding machine base, a bearing body, an inner circle grinding assembly, and a fixing assembly are set up. The bearing body is placed on the top of the grinding machine base. The electric push rod is started, which drives the arc-shaped clamping block to clamp the bearing body. At this time, the grinding head is lowered by the electric lifting frame to the center of the inner circle of the bearing body. The electric telescopic rod is started, which drives the grinding head to contact the edge of the inner circle of the bearing body. Then, the second motor is started, which makes the grinding head rotate at high speed to grind the inner circle of the bearing body. At the same time, the first motor is started, which drives the first gear to rotate. The first gear then drives the second gear to rotate, so that the rotating column drives the grinding head to rotate and grind around the inner circle of the bearing body. With the above structure, the inner circle of the bearing body can be easily processed, and it can adapt to bearing bodies of different diameters, improving the practicality of the equipment.

[0017] An automatic cleaning component is installed, and the exhaust fan is activated while the grinding work is in progress. The exhaust fan sucks the metal shavings generated during grinding from the top of the hopper and collects them in the collection box. Through the above structure, the shavings are collected in time during processing, preventing them from being scattered into the air and causing harm to the environment and human body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the inner circle grinding component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the automatic cleaning component structure of this utility model.

[0023] [Figure Labels]

[0024] 1. Grinding machine base; 2. Bearing body;

[0025] 3. Inner circle grinding assembly; 31. Electric lifting frame; 32. Motor No. 1; 33. First gear; 34. Rotating column; 35. Second gear; 36. Connecting block; 37. Electric telescopic rod; 38. Motor No. 2; 39. Connecting rod; 310. Grinding head;

[0026] 4. Fixing components; 41. Fixing plate; 42. Electric push rod; 43. Arc-shaped clamping block;

[0027] 5. Automatic cleaning component; 51. Exhaust fan; 52. Collection box; 53. Filter screen; 54. Feed hopper. Detailed Implementation

[0028] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0029] As attached Figure 1 To be continued Figure 5 An embodiment of this utility model provides a grinding machine for machining the inner circle of a bearing, including...

[0030] Grinding machine base 1;

[0031] Bearing body 2, the bearing body 2 is placed on top of the grinding machine base 1;

[0032] The inner circle grinding assembly 3 is installed on the top of the grinding machine base 1;

[0033] Fixing component 4 is disposed on the top of the grinding machine base 1;

[0034] The inner grinding assembly 3 includes an electric lifting frame 31, a first motor 32, a first gear 33, a rotating column 34, a second gear 35, a connecting block 36, an electric telescopic rod 37, a second motor 38, a connecting rod 39, and a grinding head 310. The first motor 32 is fixedly installed below the electric lifting frame 31. The first gear 33 is fixedly installed on the output end of the first motor 32. The top end of the rotating column 34 is rotatably connected to the bottom of the electric lifting frame 31. The second gear 35 is fixedly sleeved on the outer surface of the rotating column 34 and meshes with the first gear 33. The connecting block 36 is fixedly installed at the bottom end of the rotating column 34. The electric telescopic rod 37 is fixedly installed inside the connecting block 36. The second motor 38 is fixedly installed at one end of the electric telescopic rod 37. The top end of the connecting rod 39 is fixedly connected to the output end of the second motor 38. The grinding head 310 is detachably installed at the bottom end of the connecting rod 39.

[0035] The fixing component 4 includes a fixing plate 41, an electric push rod 42, and an arc-shaped clamping block 43. The bottom of the fixing plate 41 is fixedly connected to the top of the grinding machine base 1. The electric push rod 42 is fixedly installed on one side of the fixing plate 41, and the arc-shaped clamping block 43 is fixedly installed on the end of the electric push rod 42 away from the fixing plate 41.

[0036] It also includes an automatic cleaning component 5, which is installed inside the grinding machine base 1.

[0037] The automatic cleaning component 5 includes an exhaust fan 51, a collection box 52, a filter screen 53, and a discharge hopper 54. The exhaust fan 51 is fixedly installed inside the grinding machine base 1, the collection box 52 is placed inside the grinding machine base 1, the suction end of the exhaust fan 51 is fixedly connected to the inside of the collection box 52, the filter screen 53 is installed at the connection between the exhaust fan 51 and the collection box 52, the bottom of the discharge hopper 54 is fixedly connected to the top of the collection box 52, and the top of the discharge hopper 54 is fixedly connected to the top of the grinding machine base 1.

[0038] The grinding machine base 1 has holes on its top so that the waste generated during processing can enter the hopper 54; the filter screen 53 can prevent the waste in the collection box 52 from entering the interior of the exhaust fan 51.

[0039] The working process of this utility model is as follows: The bearing body 2 is placed on the top of the grinding machine base 1. The electric push rod 42 is started, and the electric push rod 42 drives the arc-shaped clamping block 43 to clamp the bearing body 2. At this time, the electric lifting frame 31 drives the grinding head 310 to descend, so that the grinding head 310 descends to the center of the inner circle of the bearing body 2. The electric telescopic rod 37 is started, and the electric telescopic rod 37 drives the grinding head 310 to contact the edge of the inner circle of the bearing body 2. Then the second motor 38 is started, so that the grinding head 310 rotates at high speed to grind the inner circle of the bearing body 2. At the same time, the first motor 32 is started, and the first motor 32 drives the first gear 33 to rotate. The first gear 33 then drives the second gear 35 to rotate, so that the rotating column 34 drives the grinding head 310 to rotate and grind around the inner circle of the bearing body 2.

[0040] While the grinding work is in progress, the exhaust fan 51 is started. The exhaust fan 51 sucks the metal shavings generated during grinding from the top of the hopper 54 and into the collection box 52 for collection.

[0041] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0042] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0043] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing inner race grinding machine characterized by, The utility model relates to a grinding machine base (1); The bearing body (2) is placed on the top of the grinding machine base (1); The inner circle polishing assembly (3) is installed on the top of the grinding machine base (1); The fixing assembly (4) is arranged on the top of the grinding machine base (1); The inner circle polishing assembly (3) includes a motor lift (31), a first motor (32), a first gear (33), a rotating column (34), a second gear (35), a connecting block (36), an electric telescopic rod (37), a second motor (38), a connecting rod (39), a polishing head (310), the first motor (32) is fixedly installed below the motor lift (31), the first gear (33) is fixedly installed on the output end of the first motor (32), the top end of the rotating column (34) is rotatably connected below the motor lift (31), the second gear (35) is fixedly sleeved on the outer surface of the rotating column (34), the second gear (35) is engaged with the first gear (33), the connecting block (36) is fixedly installed at the bottom of the rotating column (34), the electric telescopic rod (37) is fixedly installed in the connecting block (36), the second motor (38) is fixedly installed at one end of the electric telescopic rod (37), the top end of the connecting rod (39) is fixedly connected with the output end of the second motor (38), and the polishing head (310) is detachably installed at the bottom of the connecting rod (39). The fixing assembly (4) includes a fixed plate (41), an electric push rod (42) and an arc-shaped clamping block (43), the bottom of the fixed plate (41) is fixedly connected with the top of the grinding machine base (1), the electric push rod (42) is fixedly installed on one side of the fixed plate (41), and the arc-shaped clamping block (43) is fixedly installed at the end, away from the fixed plate (41), of the electric push rod (42).

2. The bearing bore machining grinder according to claim 1, characterized in that It also includes an automatic cleaning assembly (5) installed in the grinding machine base (1).

3. The bearing bore machining grinder of claim 1 wherein, The automatic cleaning assembly (5) includes an air extractor (51), a collection box (52), a filter screen (53) and a falling hopper (54), the air extractor (51) is fixedly installed in the grinding machine base (1), the collection box (52) is placed in the grinding machine base (1), the suction end of the air extractor (51) is fixedly communicated with the inside of the collection box (52), the filter screen (53) is installed at the connection between the air extractor (51) and the collection box (52), the bottom of the falling hopper (54) is fixedly communicated with the top of the collection box (52), and the top of the falling hopper (54) is fixedly connected with the top of the grinding machine base (1).

4. The bearing bore machining grinder of claim 3, wherein, ​