Burr grinding equipment for high-precision bearing machining

Abstract

The utility model relates to the field of bearing machining, and discloses burr grinding equipment for high-precision bearing machining, which comprises a workbench and two groups of fixed support frames which are symmetrically fixed on the surface of the workbench; the movable rod is mounted in a lantern ring at the top of the fixed support frame; the connecting rod is movably connected with the connecting piece at the end part of the movable rod through a rotating shaft fixed at one end; the non-slip block is fixed at one end of the connecting rod away from the movable rod; the tension spring is connected between each group of anti-skid blocks; the movable groove is formed in the surface of the workbench; and the transmission device is mounted in the movable groove. The interior of a bearing is supported through the two sets of symmetrical connecting rods, the movable rod can drive the connecting rods to be close to each other according to the size of the bearing, and therefore the diameter of the connecting rods in the bearing is enlarged, bearings of different sizes are fixed, and the limitation of the polishing device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a burr grinding device for high-precision bearing processing. Background Technique

[0002] Most bearing rings are formed by die stamping during the production process. After stamping production, the surface of the bearing rings will have some burrs of different sizes. These burrs will affect the smooth rotation and movement of the balls in the bearing rings and inner rings after the bearing rings, inner rings and rollers are installed, resulting in an increase in the rotation coefficient and rotation friction, and a reduction in work efficiency. Therefore, it is necessary to grind them.

[0003] The existing burr grinding devices cannot grind bearing rings of different sizes, and have great limitations in use and need to be improved. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a burr grinding device for high-precision bearing processing, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] The utility model discloses a burr grinding device for high-precision bearing processing, including a workbench,

[0007] Fixed support frames, which are divided into two groups and symmetrically fixed on the surface of the workbench. A collar is fixed on the top of the fixed support frames;

[0008] Moving rods, which are installed in the collars on the top of the fixed support frames. A number of groups of connecting pieces arranged in a ring are provided on the surfaces of the ends of the two moving rods close to each other;

[0009] Connecting rods, which are movably connected to the connecting pieces at the ends of the moving rods through a rotating shaft fixed at one end;

[0010] Anti-slip blocks, which are fixed at the ends of the connecting rods away from the moving rods;

[0011] Tension springs, which are connected between the anti-slip blocks in each group;

[0012] Moving grooves, which are opened on the surface of the workbench and are located at the position on one side of one group of fixed support frames away from the connecting rods;

[0013] A transmission device, which is installed inside the moving groove and is movably connected to the nearest moving rod.

[0014] Furthermore, the transmission device includes a movable support frame, a mounting groove, a mounting seat, a lead screw, a first motor, and a second motor. The movable support frame is installed inside the movable groove. A circular plate is fixed at the top corresponding to the position of the movable rod. An installation groove is opened on one side of the circular plate close to the movable rod. The end of the movable rod is inserted into the installation groove. One end of the bottom of the movable support frame is fixed with a mounting seat. A threaded hole is opened on the side wall of the mounting seat, and a lead screw is installed inside the threaded hole. Both ends of the lead screw are installed with connecting plates fixed to the bottom of the workbench. One end of the lead screw is connected to the transmission end of the first motor. The end of a set of movable rods on the side far from the movable support frame is installed with a second motor.

[0015] Furthermore, a telescopic rod is arranged between the two fixed support frames. A bracket is fixed at the top of the telescopic rod. A compression spring is sleeved on the outer wall of the telescopic rod. A set of rollers is installed inside the bracket.

[0016] Furthermore, an L-shaped mounting plate is placed at the side position of the telescopic rod. A protective ring is fixed at the top of the mounting plate. A cross plate is fixed at the midline position on the side far from the telescopic rod of the protective ring. An installation hole is opened at the center of the cross plate.

[0017] Furthermore, a grinding disc is installed on the side close to the telescopic rod of the protective ring through the installation hole. The transmission shaft of the grinding disc is connected to the third motor.

[0018] Furthermore, a rocker is fixed at the bottom of the mounting plate. A waist-shaped groove is opened on the surface of the workbench corresponding to the rocker.

[0019] Furthermore, a limiting plate is fixed at the position on the surface of the workbench above the cross plate of the mounting plate. A triangular wedge block is arranged at the gap position between the limiting plate and the mounting plate. A rotating shaft is connected to the bottom side on the side of the mounting plate of the wedge block. A shifting rod is fixed on the outer wall of the wedge block.

[0020] Furthermore, a cleaning groove is opened at the position between the telescopic rod and the mounting plate on the surface of the workbench. A guiding plate is fixed below the cleaning groove.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] The present utility model supports the inside of the bearing through two sets of symmetrically arranged connecting rods. According to the size of the bearing, the movable rod can drive the connecting rods to approach each other, thereby expanding the diameter of the connecting rods inside the bearing and fixing bearings of different sizes, reducing the limitations of the grinding device.

[0023] The present utility model installs the grinding disc through rollers and a protective ring, and limits the mounting plate through a wedge block. When grinding bearings of different sizes, the grinding disc can be moved closer to the side surface of the bearing, enabling the grinding disc to grind the bearing normally. Description of the Drawings

[0024] Figure 1 The left three-dimensional structure diagram of the present utility model;

[0025] Figure 2 The right three-dimensional structure diagram of the present utility model;

[0026] Figure 3 The structural sectional view of the present utility model;

[0027] Figure 4 The exploded view of the movable rod and the connecting rod in the present utility model;

[0028] Figure 5 The three-dimensional structure diagram of the grinding disc in the present utility model;

[0029] The reference numerals in the figure respectively represent: 1, workbench; 2, fixed support frame; 3, movable rod; 4, connecting rod; 5, anti-slip block; 6, tension spring; 7, movable groove; 8, movable support frame; 9, installation groove; 10, mounting seat; 11, lead screw; 12, motor one; 13, motor two; 14, telescopic rod; 15, roller; 16, mounting plate; 17, protective ring; 18, grinding disc; 19, motor three; 20, rocker; 21, limit plate; 22, wedge block; 23, cleaning groove; 24, guide plate. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Please refer to Figures 1-5, including a workbench 1, fixed support frames 2 which are symmetrically fixed in two groups on the surface of the workbench 1, and collar rings are fixed on the tops of the fixed support frames 2; movable rods 3 are installed in the collar rings on the tops of the fixed support frames 2, and several groups of connecting members arranged in a ring are provided on the surfaces of the ends of the two movable rods 3 close to each other; a connecting rod 4 is movably connected to the connecting member at the end of the movable rod 3 through a rotating shaft fixed at one end, and a retaining piece is fixed on the inner ring of the movable rod 3 near the connecting rod 4. When the connecting rod 4 rotates through the rotating shaft, the retaining piece on the inner ring can limit the inward rotation of the connecting rod 4; an anti-slip block 5 is fixed at the end of the connecting rod 4 away from the movable rod 3. When grinding a bearing, the bearing is sleeved on one of the anti-slip blocks 5. By moving the two movable rods 3 closer to each other, the anti-slip blocks 5 connected by the two movable rods 3 through the connecting rod 4 are in contact with each other. Thus, when the movable rods 3 continue to move closer to each other, the anti-slip blocks 5 rotate and move outwards along the rotating shaft provided on the connecting rod 4, expanding the diameter size. When the connecting rod 4 rotates a certain angle, the anti-slip blocks 5 fit on the inner wall of the bearing, restricting the continuous movement of the anti-slip blocks 5, thereby stably supporting and fixing the bearing and preventing displacement of the bearing during grinding; a tension spring 6 is connected between each group of anti-slip blocks 5. Through the pulling of the tension spring 6, the connecting rod 4 and the anti-slip block 5 located below do not rotate directly downwards due to the weight, and when supporting and limiting the bearing, the tension spring 6 can be stretched as the connecting rod 4 expands and does not have a great restriction on the movement of the anti-slip block 5; a movable groove 7 is opened on the surface of the workbench 1 at a position on one side of one of the fixed support frames 2 away from the connecting rod 4; a transmission device is installed inside the movable groove 7 and is movably connected to the nearest movable rod 3.The transmission device includes a movable support frame 8, a mounting groove 9, a mounting seat 10, a lead screw 11, a first motor 12, and a second motor 13. The movable support frame 8 is installed inside the movable groove 7, and a circular plate is fixed at the top corresponding to the position of the movable rod 3. An installation groove 9 is opened on one side of the circular plate close to the movable rod 3. The end of the movable rod 3 is inserted into the installation groove 9. One end of the bottom of the movable support frame 8 is fixed with a mounting seat 10. A threaded hole is opened on the side wall of the mounting seat 10, and a lead screw 11 is installed inside the threaded hole. Both ends of the lead screw 11 are installed with connecting plates fixed to the bottom of the workbench 1. One end of the lead screw 11 is connected to the transmission end of the first motor 12. The end of a group of movable rods 3 on the side far from the movable support frame 8 is installed with a second motor 13. When the anti-slip block 5 approaches the inner wall of the bearing, the first motor 12 drives the lead screw 11 to rotate, so that the lead screw 11 drives the mounting seat 10 to move. While the mounting seat 10 is moving, the movable rod 3 inserted into the mounting groove 9 is driven to move by the movable support frame 8, so that the connecting rod 4 expands the anti-slip block 5 outward as the mounting seat 10 moves. When the anti-slip block 5 abuts against the inner wall of the bearing, the first motor 12 stops driving, so that the anti-slip block 5 stops moving the bearing. The second motor 13 drives the movable rod 3 to rotate, so that the anti-slip block 5 drives the clamped bearing to rotate. When the bearing rotates, it drives the movable rod 3 inserted into the mounting groove 9 to rotate, reducing the rotation resistance of the bearing, and when the bearing rotates, the grinding position can be changed to achieve comprehensive grinding of the outer wall of the bearing.

[0032] An expansion rod 14 is arranged between the two fixed support frames 2. The top of the expansion rod 14 is fixed with a support. A compression spring is sleeved on the outer wall of the expansion rod 14. A group of rollers 15 are installed inside the support. A bearing is placed above the rollers 15. The rollers 15 move downward under pressure, and the expansion rod 14 moves upward through the reaction force of the compression spring, so that the rollers 15 can stably support the bearing. And when the second motor 13 rotates driven by the anti-slip block 5, the rollers 15 can rotate in the same direction as the bearing to reduce the rotation resistance.

[0033] An L-shaped mounting plate 16 is placed at the side position of the expansion rod 14. A protective ring 17 is fixed at the top of the mounting plate 16. A cross plate is fixed at the midline position on the side of the protective ring 17 far from the expansion rod 14. A mounting hole is opened at the center of the cross plate. The grinding disc 18 is installed on the side of the protective ring 17 close to the expansion rod 14 through the mounting hole. The transmission shaft of the grinding disc 18 is connected to the third motor 19. The protective ring 17 can protect the outer ring of the grinding disc 18, reduce the impact of the grinding disc 18 from the outside world, and at the same time reduce the production safety problems caused by the accidental contact between the staff and the grinding disc 18.

[0034] A rocker 20 is fixed to the bottom of the mounting plate 16. A waist-shaped groove is opened on the surface of the workbench 1 at a position corresponding to the rocker 20. The rocker 20 is passed through the waist-shaped groove so that the mounting plate 16 can be adjusted along the waist-shaped groove. When the diameter of the bearing is relatively large, the mounting plate 16 is moved to the side away from the telescopic rod 14 so that the surface of the grinding disc 18 can grind the outer wall of the bearing. When the diameter of the bearing is relatively small, the mounting plate 16 is moved closer to the telescopic rod 14 along the waist-shaped groove to grind the bearing. Moreover, the rocker 20 can be used to control the angular deviation of the mounting plate 16, change the angle of the grinding disc 18, and perform grinding operations on the outer corners of the bearing.

[0035] A limiting plate 21 is fixed to the surface of the workbench 1 above the cross plate of the mounting plate 16. A triangular wedge 22 is arranged at the gap between the limiting plate 21 and the mounting plate 16. A rotating shaft is connected to the bottom side of the wedge 22 on the side of the mounting plate 16. A lever is fixed to the outer wall of the wedge 22. The wedge 22 can be controlled to rotate around the rotating shaft through the lever. When the mounting plate 16 needs to be moved, the wedge 22 is removed from between the limiting plate 21 and the mounting plate 16 so that the wedge 22 can move. After the position of the mounting plate 16 is adjusted, the wedge 22 is rotated through the lever so that the wedge 22 is squeezed into the space between the mounting plate 16 and the limiting plate 21 to clamp the mounting plate 16 and prevent the mounting plate 16 from moving during the grinding of the bearing.

[0036] A cleaning groove 23 is opened on the surface of the workbench 1 between the telescopic rod 14 and the mounting plate 16. A guide plate 24 is fixed below the cleaning groove 23. When the grinding disc 18 grinds the bearing, the waste chips will fall on the surface of the workbench 1. The waste chips will fall below the workbench 1 through the cleaning groove 23, reducing the accumulation of waste chips on the surface of the workbench 1, ensuring the normal movement of the mounting plate 16, and the guide plate 24 can guide the waste chips and enter the same space for sorting.

[0037] Working principle: When deburring and polishing a bearing, first confirm the bearing size, then sleuth the bearing on the connecting rod 4 near one side of the motor two 13. The bottom of the bearing falls on the surface of the roller 15 by gravity. Start the motor one 12. The motor one 12 drives the screw rod 11 to rotate, causing the mounting seat 10 to move. The movable support frame 8 at the top of the mounting seat 10 pushes the movable rod 3 to move towards the motor two 13. When the connecting rods 4 at the ends of the two groups of connecting rods 4 abut against each other, the connecting rods 4 start to rotate outwards through the rotating shaft. Furthermore, the anti-slip block 5 expands its diameter inside the bearing. The outer wall of the anti-slip block 5 is in close contact with the inner wall of the bearing and is clamped inside the bearing. Then start the motor two 13. The motor two 13 drives the connecting rod 4 to rotate through the movable rod 3. Thus, the connecting rod 4 drives the bearing to rotate through the anti-slip block 5. When the bearing rotates, the contact point with the grinding disc 18 is changed, enabling the outer ring of the bearing to come into full contact with the grinding disc 18. When the bearing is being polished, the excess burrs are cleaned off and fall on the surface of the workbench 1 and then fall below the workbench 1 through the opened cleaning groove 23, reducing the accumulation of waste on the surface of the workbench 1.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A burr grinding device for high-precision bearing processing, including a workbench (1), It is characterized in that It also includes: Fixed support frames (2), divided into two groups and symmetrically fixed on the surface of the workbench (1). A collar is fixed at the top of the fixed support frames (2); Movable rods (3), installed in the collars at the top of the fixed support frames (2). On the surfaces of the ends of the two groups of movable rods (3) close to each other, several groups of connecting parts arranged in a ring are provided; Connecting rods (4), movably connected to the connecting parts at the ends of the movable rods (3) through a rotating shaft fixed at one end; Anti-slip blocks (5), fixed at the ends of the connecting rods (4) away from the movable rods (3); Tension springs (6), connected between the anti-slip blocks (5) of each group; Movable grooves (7), opened on the surface of the workbench (1), located at the position on one side of one group of fixed support frames (2) away from the connecting rod (4); A transmission device, installed inside the movable groove (7) and movably connected to the nearest movable rod (3).

2. The deburring and polishing equipment for high-precision bearing processing according to claim 1, wherein: The transmission device includes a movable support frame (8), a mounting groove (9), a mounting seat (10), a lead screw (11), a first motor (12), and a second motor (13). The movable support frame (8) is installed inside the movable groove (7). A circular plate is fixed at the top corresponding to the position of the movable rod (3). An installation groove (9) is opened on the side of the circular plate close to the movable rod (3). The end of the movable rod (3) is inserted into the installation groove (9). One end of the bottom of the movable support frame (8) is fixed with a mounting seat (10). A threaded hole is opened on the side wall of the mounting seat (10). A lead screw (11) is installed inside the threaded hole. The two ends of the lead screw (11) are installed with connecting plates fixed to the bottom of the workbench (1). One end of the lead screw (11) is connected to the transmission end of the first motor (12). A second motor (13) is installed at the end of one group of movable rods (3) on the side away from the movable support frame (8).

3. The deburring and polishing equipment for high-precision bearing processing according to claim 1, characterized in that: An expansion rod (14) is arranged between the two groups of fixed support frames (2). A bracket is fixed at the top of the expansion rod (14). A compression spring is sleeved on the outer wall of the expansion rod (14). A group of rollers (15) are installed inside the bracket.

4. The deburring and polishing equipment for high-precision bearing processing according to claim 3, characterized in that: An L-shaped mounting plate (16) is placed at the side position of the expansion rod (14). A protective ring (17) is fixed at the top of the mounting plate (16). A cross plate is fixed at the midline position on the side of the protective ring (17) away from the expansion rod (14). An installation hole is opened at the center of the cross plate.

5. The deburring and polishing equipment for high-precision bearing processing according to claim 4, characterized in that: A grinding disc (18) is installed through the installation hole on the side of the protective ring (17) close to the expansion rod (14). The transmission shaft of the grinding disc (18) is connected to a third motor (19).

6. The deburring and polishing equipment for high-precision bearing processing according to claim 4, characterized in that: A rocker (20) is fixed at the bottom of the mounting plate (16). A kidney-shaped groove is opened on the surface of the workbench (1) corresponding to the rocker (20).

7. The deburring and polishing equipment for high-precision bearing machining according to claim 4, characterized in that: A limit plate (21) is fixed at the position on the surface of the workbench (1) above the cross plate of the mounting plate (16). A triangular wedge block (22) is arranged in the gap between the limit plate (21) and the mounting plate (16). A rotating shaft is connected to the bottom side of the wedge block (22) on the side of the mounting plate (16). A lever is fixed on the outer wall of the wedge block (22).

8. The deburring and polishing equipment for high-precision bearing processing according to claim 4, characterized in that: A cleaning groove (23) is formed at the position between the surface telescopic rod (14) and the mounting plate (16) of the workbench (1), and a guide plate (24) is fixed below the cleaning groove (23).

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