A bearing ring surface flaw repairing device

Abstract

The utility model relates to bearing polishing equipment technical field especially a kind of bearing ring surface flaw repairing device, including base, X direction sliding table and the Y direction sliding table located in the left side of X direction sliding table are equipped on base;Z direction lifting platform, be located on X direction sliding table;Polisher, be located on Z direction lifting platform, its execution end is close to Y direction sliding table;Driving mechanism, installation is in Y direction sliding table, its output end is equipped with the flange close to the execution end of polisher;Chuck, installation is on flange to accept the drive of driving mechanism and rotate on the axis parallel to X direction, the utility model can solve the problem of low positioning accuracy, poor stability, insufficient efficiency in bearing ring repair, improve bearing ring repair quality.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing grinding equipment, specifically to a device for repairing surface defects on bearing races. Background Technology

[0002] Bearings are crucial components in mechanical equipment, primarily used to support rotating parts, reduce friction during operation, and ensure rotational accuracy. There are many types of bearings, and selecting the appropriate bearing based on the specific internal structure of the machinery achieves optimal performance. During the manufacturing process, bearing races may develop surface defects due to minor mechanical damage (scratches, indentations, burrs), machining marks (grinding marks, turning marks), and thermal defects (minor grinding burns, residual oxide scale). These surface defects affect product quality and performance. Currently, to improve efficiency, many factories use handheld grinders to repair surface defects on bearing races. However, this method suffers from insufficient handheld stability, incomplete repair, and low repair efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bearing ring surface defect repair device, which can solve the problems of low positioning accuracy, poor stability and insufficient efficiency in bearing ring repair, and improve the quality of bearing ring repair.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bearing ring surface defect repair device, comprising a base, an X-axis slide and a Y-axis slide located to the left of the X-axis slide; a Z-axis lifting platform, disposed on the X-axis slide; a grinding machine, disposed on the Z-axis lifting platform, with its execution end close to the Y-axis slide; a drive mechanism, mounted on the Y-axis slide, with its output end having a flange close to the execution end of the grinding machine; and a chuck, mounted on the flange to receive the drive mechanism to rotate on an axis parallel to the X-axis.

[0005] Preferably, the drive mechanism includes a support column mounted on a Y-axis slide, a fixed seat located at the top of the support column, a rotating shaft slidably mounted on the fixed seat along the X-axis and extending to the outside of the fixed seat at both ends, and a drive assembly mounted on the support column for driving the rotating shaft to rotate around the shaft; the flange is fixedly located at the right end of the rotating shaft; a stop pin is movably provided on the top of the fixed seat; and multiple positioning holes are evenly distributed circumferentially on the shaft section located inside the fixed seat, which form a positioning fit with the stop pin.

[0006] Preferably, the drive assembly includes a driven wheel, a bracket, a drive shaft, a driving wheel, a belt, and a handle; the driven wheel is fixedly disposed at the left end of the shaft; the bracket is fixedly disposed on a support column; the drive shaft is supported on the bracket by a bearing; the driving wheel is fixedly disposed at the right end of the drive shaft; the belt connects the driving wheel and the driven wheel to form a transmission pair; and the handle is fixedly disposed at the left end of the drive shaft.

[0007] Preferably, the X-axis slide table includes a slide rail fixed to the base along the X-axis and a support plate that slides with the slide rail; the Z-axis lifting table includes multiple guide shafts vertically fixed to the upper end of the support plate and a mounting plate that slides with the guide shafts; the grinder is fixed to the mounting plate.

[0008] Preferably, it also includes an adjustment component; the adjustment component is disposed on the support plate and located below the mounting plate, and is used to set and maintain the horizontal height of the mounting plate.

[0009] Preferably, the adjusting assembly includes at least one adjusting bolt; the adjusting bolt is threadedly connected to the support plate.

[0010] Preferably, it also includes a linear module arranged along the X direction on the base, the output end of the linear module being fixedly connected to the support plate.

[0011] Preferably, the drive mechanism further includes a housing, which is mounted on a support column. The driven wheel, the driving wheel, and the belt are located inside the housing, while the handle is located outside the housing.

[0012] Preferably, the Z-axis lifting platform further includes multiple linear bearings corresponding to the guide shaft, and the mounting plate forms a sliding fit with the guide shaft through the linear bearings.

[0013] Preferably, there are multiple adjusting bolts arranged along the Y direction.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Through the combined motion of the X-axis slide, Y-axis slide, and Z-axis lifting platform, the precise position and posture adjustment of the workpiece in three-dimensional space is achieved, ensuring that the grinding area is fully aligned with the execution end; the Z-axis uses four sets of guide support components (linear bearings + guide shafts) to ensure vertical lifting stability, and adjusts the height finely with adjusting bolts; the Y-axis slide provides lateral displacement compensation to adapt to workpieces of different sizes.

[0016] 2. The belt-driven shaft structure reduces transmission vibration, and the external handle design facilitates operation; the circumferentially distributed positioning holes and stop pins of the shaft form a rigid positioning, realizing instantaneous locking of the workpiece at any rotation angle and ensuring accurate reproduction of the repair position;

[0017] 3. The base integrates a linear module to drive X-axis feed, eliminating manual pushing errors; the chuck and grinder are rigidly opposed to each other to suppress operating vibration; single handle controls rotation and slide table push-pull adjustment, simplifying complex posture adjustment processes and greatly improving efficiency compared to handheld operation. Attached Figure Description

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

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

[0020] Figure 3 This is a schematic diagram of the drive mechanism and chuck of this utility model;

[0021] Figure 4 This is a longitudinal sectional view of the drive mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the rotating shaft structure of this utility model.

[0023] In the diagram: 1. Base, 2. X-axis slide, 3. Y-axis slide, 4. Linear module, 5. Z-axis lifting platform, 6. Adjustment component, 7. Grinding machine, 8. Drive mechanism, 9. Chuck, 81. Support column, 82. Fixed seat, 83. Rotary shaft, 84. Driven wheel, 85. Bracket, 86. Drive shaft, 87. Drive wheel, 88. Belt, 89. Handle, 810. Housing, 811. Stop pin, 812. Flange, 831. Positioning hole. Detailed Implementation

[0024] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice this utility model. Although this utility model has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of this utility model.

[0025] See Figure 1-5 In one embodiment of this utility model, a bearing ring surface defect repair device includes: a base 1, a grinding mechanism and a support mechanism disposed on the base 1, wherein the grinding mechanism is located on the right side of the support mechanism, the grinding mechanism is used to grind the workpiece (such as the bearing ring), and the support mechanism can not only fix the workpiece, but also adjust the contact position between the workpiece and the execution end of the grinding mechanism. Through rigid support, the grinding mechanism can fully grind and repair the bearing ring.

[0026] In this application, the length direction of the base 1 is defined as the X direction, the width direction of the base 1 is defined as the Y direction, and the height direction of the base 1 is defined as the Z direction.

[0027] Specifically, the grinding mechanism includes an X-axis slide 2, a linear module 4, a Z-axis lifting platform 5, an adjustment component 6, and a grinding machine 7. The X-axis slide 2 includes a slide rail laid on the base 1 along the X-axis, and a support plate mounted on the slide rail and slidingly engaging with the slide rail. The linear module 4 is also laid on the base 1 along the X-axis, and the output end of the linear module 4 is fixedly connected to the lower end of the support plate. The linear module 4 can drive the support plate to move closer to or away from the support mechanism.

[0028] The Z-axis lifting platform 5 mainly consists of a mounting plate and four sets of guide support components. Each set of support components includes a linear bearing and a guide shaft. The four guide shafts are vertically fixed to the upper end of the support plate. The mounting plate forms a sliding fit with the guide shafts through the linear bearing on it. Under the driving force of external force, the mounting plate can achieve precise lifting and lowering movement along the Z-axis. The grinding machine 7 is fixedly mounted on the mounting plate, with its execution end close to the support mechanism. The grinding machine 7 is horizontally set in the X-axis. In practice, a mounting seat for supporting the grinding machine 7 can be set at the upper end of the mounting plate.

[0029] In this embodiment, the adjustment component 6 is used to set and maintain the horizontal height of the mounting plate. The adjustment component 6 includes two adjusting bolts that are vertically mounted on the support plate. Both adjusting bolts are located below the mounting plate and are arranged along the Y direction. The lower surface of the mounting plate is directly supported by the tops of the two adjusting bolts. The adjusting bolts and the support plate are connected by a threaded pair. By rotating the adjusting bolts, the height of their tops relative to the upper surface of the support plate can be precisely adjusted, thereby changing the distance between the mounting plate and the support plate. This change in distance ultimately achieves the adjustment of the working height of the grinder 7.

[0030] The support mechanism includes a Y-axis slide 3, a drive mechanism 8, and a chuck 9. The Y-axis slide 3 is mounted on the base 1 and located to the left of the X-axis slide 2. The Y-axis slide 3 includes a guide rail laid along the Y direction on the base 1, and a base plate mounted on the guide rail and slidingly engaging with the guide rail. The drive mechanism 8 is mounted on the base plate. By operating the Y-axis slide 3, the positions of the drive mechanism 8 and the chuck 9 in the Y direction can be easily adjusted.

[0031] The drive mechanism 8 includes a support column 81 vertically mounted on a base plate, a fixed seat 82 located at the top of the support column 81, a rotating shaft 83 slidably mounted on the fixed seat 82 via bearings and extending to both ends outside the fixed seat 82, a driven wheel 84, a bracket 85 fixedly mounted on the support column 81, a drive shaft 86 supported by the bracket 85, a driving wheel 87, a belt 88, a handle 89, a housing 810 mounted on the support column 81, a stop pin 811, and a flange 812; the driven wheel 84 is fixedly mounted on the left end of the rotating shaft 83, the driving wheel 87 is located on the right end of the drive shaft 86, and the driven wheel 84 and the driving wheel 87 are driven by a belt; both the driven wheel 84 and the driving wheel 87 are located inside the housing 810, and the handle 89 is fixedly mounted on the left end of the drive shaft 86 and located outside the housing 810;

[0032] The rotating shaft 83 is arranged along the X direction; a plurality of positioning holes 831 are opened on the outer periphery of the rotating shaft 83, and the plurality of positioning holes 831 are evenly distributed around the axis of the rotating shaft 83 and are all located inside the fixed seat 82.

[0033] The flange 812 is fixedly mounted on the right end of the rotating shaft 83 for fixing the chuck 9. At this time, the chuck 9 corresponds to the position of the execution end of the grinder 7. The stop pin 811 is movably mounted on the fixed seat 82. The lower part of the stop pin 811 can extend to the inner side of the fixed seat 82 and be radially inserted into any positioning hole 831 of the rotating shaft 83 to form a positioning fit, which is used to lock the rotation angle of the rotating shaft 83. In use, the chuck 9 is used to fix the bearing ring. By rotating the handle 89, the bearing ring on the chuck 9 can be driven to rotate around its axis, thereby cooperating with the grinder 7 to perform grinding and repair operations on the bearing ring.

[0034] Functional Description: The chuck 9 is used to hold the bearing race. When the handle 89 is turned, the drive shaft 86, drive wheel 87, belt 88, and driven wheel 84 drive the rotating shaft 83 and the chuck 9 to rotate around their axis, causing the held bearing race to rotate. This rotation, in conjunction with the action of the grinder 7, enables the grinding operation of the bearing race. When a specific part of the bearing race needs to be repaired, simply turn the handle to bring the area of ​​the bearing race to be repaired into contact with the execution end of the grinder 7. Then, the angle of the rotating shaft 83 is locked by the stop pin 811, which enables precise repair of the bearing race. Compared with existing handheld operation, this device has significantly higher stability, higher repair accuracy, and higher repair efficiency.

[0035] By integrating modular motion mechanisms (three-axis translation + rotation indexing) with rigid-flexible coupling transmission, the industry pain points of low positioning accuracy, poor stability and insufficient efficiency in bearing ring repair are solved, significantly improving repair quality and automation level, and is suitable for the field of high-precision bearing remanufacturing.

[0036] Finally, it should be noted that 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for repairing surface defects on bearing rings, characterized in that: include The base (1) is provided with an X-axis slide (2) and a Y-axis slide (3) located to the left of the X-axis slide (2). The Z-axis lifting platform (5) is located on the X-axis sliding platform (2); The grinding machine (7) is located on the Z-axis lifting platform (5), and its execution end is close to the Y-axis sliding platform (3). The drive mechanism (8) is installed on the Y-axis slide (3), and its output end is provided with a flange near the execution end of the grinder (7); The chuck (9) is mounted on the flange to receive the drive of the drive mechanism (8) and rotate on an axis parallel to the X direction.

2. The bearing ring surface defect repair device according to claim 1, characterized in that: The drive mechanism (8) includes a support column (81) mounted on the Y-axis slide (3), a fixed seat (82) located at the top of the support column (81), a rotating shaft (83) slidably mounted on the fixed seat (82) along the X-axis and extending to the outside of the fixed seat (82) at both ends, and a drive assembly mounted on the support column (81) for driving the rotating shaft (83) to rotate around the shaft; the flange is fixedly located at the right end of the rotating shaft (83); a stop pin (811) is also movably provided on the top of the fixed seat (82); a plurality of positioning holes (831) are evenly distributed circumferentially on the shaft section of the rotating shaft (83) located inside the fixed seat (82) to form a positioning fit with the stop pin (811).

3. The bearing ring surface defect repair device according to claim 2, characterized in that: The drive assembly includes a driven wheel (84), a bracket (85), a drive shaft (86), a driving wheel (87), a belt (88), and a handle (89); the driven wheel (84) is fixed to the left end of the rotating shaft (83); the bracket (85) is fixed to the support column (81); the drive shaft (86) is supported on the bracket (85) by a bearing; the driving wheel (87) is fixed to the right end of the drive shaft (86); the belt (88) connects the driving wheel (87) and the driven wheel (84) to form a transmission pair; the handle (89) is fixed to the left end of the drive shaft (86).

4. The bearing ring surface defect repair device according to claim 1, characterized in that: The X-axis slide (2) includes a slide rail fixed to the base (1) along the X direction, and a support plate that slides with the slide rail; the Z-axis lifting platform (5) includes multiple guide shafts vertically fixed to the upper end of the support plate and a mounting plate that slides with the guide shafts; the grinder (7) is fixed to the mounting plate.

5. The bearing ring surface defect repair device according to claim 4, characterized in that: It also includes an adjustment component (6); the adjustment component (6) is disposed on the support plate and located below the mounting plate, and is used to set and maintain the horizontal height of the mounting plate.

6. The bearing ring surface defect repair device according to claim 5, characterized in that: The adjusting assembly (6) includes at least one adjusting bolt; the adjusting bolt is threadedly connected to the support plate.

7. The bearing ring surface defect repair device according to claim 4, characterized in that: It also includes a linear module (4) arranged along the X direction on the base, the output end of which is fixedly connected to the support plate.

8. The bearing ring surface defect repair device according to claim 3, characterized in that: The drive mechanism (8) also includes a housing (810), which is mounted on a support column (81). The passive wheel (84), the drive wheel (87) and the belt (88) are located inside the housing (810), and the handle (89) is located outside the housing (810).

9. The bearing ring surface defect repair device according to claim 4, characterized in that: The Z-axis lifting platform (5) also includes multiple linear bearings corresponding to the guide shaft, and the mounting plate forms a sliding fit with the guide shaft through the linear bearings.

10. A bearing ring surface defect repair device according to claim 6, characterized in that: The adjustment bolts are provided in multiple quantities, and the multiple adjustment bolts are arranged along the Y direction.

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