Groove grinding equipment for machining inner ring and outer ring of deep groove ball bearing

Abstract

The utility model relates to a groove grinding device for machining an inner ring and an outer ring of a deep groove ball bearing. The groove grinding device effectively solves the problems that an existing bearing groove grinding device affects machining precision, is not convenient to adjust according to the size of a bearing ring and is limited in use range. According to the channel grinding equipment for machining the inner ring and the outer ring of the deep groove ball bearing, the inner ring and the outer ring of the bearing can be clamped through the adjustable clamping mechanism, so that the effect of grinding the channels of the inner ring and the outer ring of the bearing can be achieved; meanwhile, the circle centers of the inner and outer rings of the bearing can vertically correspond to the axis of the rotating mechanism all the time, and it is guaranteed that the grinding mechanism has high grinding precision on the inner and outer rings of the bearing; the bidirectional displacement mechanism can adjust the distance between the grinding mechanisms on the two sides, inner and outer rings of bearings with different diameters can be ground conveniently, different grinding heads of the grinding mechanisms can be replaced according to the sizes of channels of the inner and outer rings of the bearings, the application range of the grinding equipment is widened, and the grinding equipment is more convenient to use during bearing machining.

Description

Technical Field

[0001] This utility model belongs to the technical field of bearing processing equipment, specifically relating to a groove grinding equipment for processing the inner and outer rings of a deep groove ball bearing. Background Technology

[0002] Deep groove ball bearings are among the most widely used rolling bearings. They are characterized by low frictional resistance and high speed. They can be used in components that bear radial loads or combined radial and axial loads, as well as components that bear axial loads, such as small power electric motors, automobile and tractor gearboxes, machine tool gearboxes, and other machines.

[0003] In the machining of deep groove ball bearings, both the inner and outer raceways need to be ground to ensure low frictional resistance and improve the overall rotational performance of the bearing. However, currently, grinding the inner and outer raceways of deep groove ball bearings often relies on manual handling of the bearing with grinding tools. This process can easily cause the bearing to wobble, making it impossible to guarantee a perfect fit between the inner and outer raceways, thus affecting the machining accuracy. Furthermore, due to the wide variety of bearing models and sizes, existing grinding equipment is not easily adjustable, preventing the precise and thorough grinding of the inner and outer raceways of bearings for different gear models. This limits the applicability of the grinding equipment and makes it inconvenient for bearing machining. Utility Model Content

[0004] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides a groove grinding device for machining the inner and outer rings of deep groove ball bearings. This device can grind both the inner and outer ring grooves of the bearing, and its adjustable clamping mechanism facilitates clamping bearing outer or inner rings of different diameters. Simultaneously, it ensures that the centers of the inner and outer rings are always vertically aligned with the axis of the rotating mechanism, guaranteeing high grinding precision for both the inner and outer rings. The grinding mechanism can be adjusted to a suitable position according to the diameter of the inner and outer rings, facilitating grinding of bearings with different diameters. Furthermore, the grinding mechanism allows for the replacement of different grinding heads to accommodate different groove dimensions, thus expanding the applicability of this grinding device.

[0005] A groove grinding device for machining the inner and outer rings of a deep groove ball bearing includes a base and a placement plate for placing the bearing rings. The placement plate is fixedly connected to the upper surface of the base. An adjustable clamping mechanism for clamping the bearing rings is provided between the base and the placement plate, with the top end of the adjustable clamping mechanism passing through the upper surface of the placement plate. A vertical support rod is fixedly connected to one side of the upper surface of the base, and a movable bracket is slidably connected to the outside of the vertical support rod. An electric lifting rod that can be pushed up and down is provided on the lower surface of the movable bracket near the vertical support rod. A rotating mechanism is provided at the center of the movable bracket. A bidirectional displacement mechanism is provided at the movable end of the rotating mechanism corresponding to the placement plate, and a grinding mechanism for grinding the grooves of the inner and outer rings of the bearing is provided at the bottom end of the bidirectional displacement mechanism.

[0006] Preferably, the adjustable clamping mechanism includes a first rack and pinion slide rod, a second rack and pinion slide rod, a spur gear, a first reduction motor, and a clamping support column. There are two first rack and pinion slide rods and two second rack and pinion slide rods. The two first rack and pinion slide rods are arranged parallel to each other and are respectively connected to the two sides of the top of the spur gear. The two second rack and pinion slide rods are arranged parallel to each other and are respectively connected to the two sides of the bottom of the spur gear. The two first rack and pinion slide rods and the two second rack and pinion slide rods are arranged perpendicular to each other.

[0007] Preferably, the first rack and pinion, the second rack and pinion, and the spur gear are all disposed between the placement plate and the base. The spur gear is vertically rotatably connected to the center of the lower surface of the placement plate. The first geared motor is fixedly installed in the middle of the lower surface of the base, and its output shaft passes through the upper surface of the base and is connected to the spur gear through a spline. The upper surfaces of the two first rack and pinion and the second rack and pinion on opposite sides are fixedly connected to clamping supports. All four clamping supports pass through the upper surface of the placement plate and can slide laterally.

[0008] Preferably, the movable bracket is sleeved on the outside of the vertical support rod and can move up and down on the outside of it. There are two electric lifting rods, and the fixed rod parts of the two electric lifting rods are fixedly connected to the upper surface of the base. The top ends of the movable rods of the two electric lifting rods are fixedly connected to the movable bracket.

[0009] Preferably, the rotating mechanism includes a drive motor and a rotating frame. The drive motor is fixedly installed at the center of the upper surface of the movable support, and its output end passes through the lower part of the movable support and is connected to the rotating frame through a spline. The rotating frame is located below the movable support, and a limiting rod for limiting the bidirectional displacement mechanism is fixedly connected to the bottom of the rotating frame.

[0010] Preferably, the bidirectional displacement mechanism includes a second geared motor, a bidirectional threaded screw, and a transverse movable rod. The second geared motor is fixedly installed in the middle of one side of the rotating frame. The bidirectional threaded screw is rotatably connected to the middle of the rotating frame and connected to the output end of the second geared motor via a spline. The bidirectional threaded screw is vertically aligned with the limiting rod. The top of the transverse movable rod is provided with an internal thread and is connected to the outside of the bidirectional threaded screw via threaded transmission. The transverse movable rod is laterally slidably connected to the outside of the limiting rod. There are two transverse movable rods, and the two transverse movable rods are symmetrically arranged with the vertical centerline of the bidirectional threaded screw as the axis of symmetry.

[0011] Preferably, the grinding mechanism includes a rotating plate, a tension spring, an adjusting frame, a clamping rod, and a grinding head. The rotating plate is rotatably connected to the bottom end of the transverse movable rod. Two clamping rods are fixedly connected to the upper surface of the adjusting frame. The two clamping rods are symmetrically arranged about the vertical center line of the adjusting frame and both pass through the interior of the rotating plate and the transverse movable rod. The tension spring is sleeved on the outside of the clamping rod, and its top and bottom ends are fixedly connected to the lower surface of the rotating plate and the upper surface of the adjusting frame, respectively. Grinding heads of different diameters are fixedly connected to both ends of the adjusting frame.

[0012] Preferably, a grinding mechanism is provided at the bottom of both of the transverse movable rods, and the two grinding mechanisms are symmetrically arranged with the vertical center line of the bidirectional threaded screw as the axis of symmetry.

[0013] The beneficial effects of the above technical solution are as follows:

[0014] This deep groove ball bearing inner and outer ring grinding equipment features an adjustable clamping mechanism, a bidirectional displacement mechanism, and a grinding mechanism. The adjustable clamping mechanism clamps the outer ring externally, allowing the grinding mechanism to grind the inner grooves of the outer ring. Conversely, clamping the inner ring internally allows grinding the outer grooves of the inner ring. This enables grinding of both the inner and outer ring grooves. The adjustable clamping mechanism facilitates clamping bearing outer or inner rings of different diameters, ensuring the centers of the inner and outer rings always align vertically with the axis of the rotating mechanism, guaranteeing high grinding precision. The bidirectional displacement mechanism adjusts the distance between the two grinding mechanisms, allowing for placement according to the diameter of the inner and outer rings, facilitating grinding of different diameters. Furthermore, the grinding mechanism allows for the replacement of different grinding heads to accommodate varying inner and outer ring groove dimensions, expanding the equipment's applicability and making it more convenient for bearing processing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2This is a schematic diagram of the placement plate and movable support of this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating mechanism and the bidirectional displacement mechanism of this utility model;

[0018] Figure 4 For this utility model Figure 3 A diagram illustrating the split state;

[0019] Figure 5 This is a schematic diagram of the adjustable clamping mechanism of this utility model;

[0020] Figure 6 For this utility model Figure 5 A diagram illustrating the split state;

[0021] Figure 7 This is a schematic diagram of the disassembled grinding mechanism of this utility model;

[0022] Figure 8 This is a schematic cross-sectional view of the grinding mechanism of this utility model;

[0023] Figure 9 This is a schematic diagram of the cross-sectional disassembly state of the grinding mechanism of this utility model.

[0024] In the diagram: 1. Base; 2. Placement plate; 3. Vertical support rod; 4. Movable bracket; 5. Electric lifting rod; 6. First rack and pinion slide rod; 7. Second rack and pinion slide rod; 8. Spur gear; 9. First geared motor; 10. Clamping support column; 11. Drive motor; 12. Rotating frame; 13. Limiting rod; 14. Second geared motor; 15. Bidirectional threaded screw; 16. Lateral movable rod; 17. Rotating plate; 18. Tension spring; 19. Adjusting frame; 20. Locking rod; 21. Grinding head; 22. Fixed slide. Detailed Implementation

[0025] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 9 The embodiments are described in detail below.

[0026] This embodiment provides a groove grinding device for machining the inner and outer rings of a deep groove ball bearing, as shown in the attached figure. Figure 1-9 As shown, it includes a base 1 and a placement plate 2 for placing the bearing ring. The placement plate 2 is fixedly connected to the upper surface of the base 1. Support legs are fixedly connected to the four corners of the lower surface of the base 1. The support legs can support the base 1 and also reserve space for the first geared motor 9, ensuring that the first geared motor 9 can be installed normally on the lower surface of the base 1. An adjustable clamping mechanism for clamping the bearing ring is provided between the base 1 and the placement plate 2, and the top end of the adjustable clamping mechanism passes through the upper surface of the placement plate 2.

[0027] The adjustable clamping mechanism includes a first rack and pinion slide rod 6, a second rack and pinion slide rod 7, a spur gear 8, a first reduction motor 9, and a clamping support column 10. There are two first rack and pinion slide rods 6 and two rack and pinion slide rods 7. Fixed slide seats 22 are sleeved on the outside of both first rack and pinion slide rods 6 and two rack and pinion slide rods 7. All four fixed slide seats 22 are fixedly installed on the lower surface of the placement plate 2. The fixed slide seats 22 can ensure that the first rack and pinion slide rods 6 and the second rack and pinion slide rods 7 can move laterally inside them and limit the direction of movement. At the same time, they can also support the first rack and pinion slide rods 6 and the second rack and pinion slide rods 7 to ensure that the clamping support column 10 at their ends can move smoothly.

[0028] Two first rack slide rods 6 are arranged parallel to each other and are respectively connected to the top two sides of the spur gear 8. Two second rack slide rods 7 are arranged parallel to each other and are respectively connected to the bottom two sides of the spur gear 8. The two first rack slide rods 6 and the two second rack slide rods 7 are arranged perpendicular to each other. The first rack slide rods 6, the second rack slide rods 7 and the spur gear 8 are all arranged between the placement plate 2 and the base 1. The spur gear 8 is vertically rotatably connected to the center of the lower surface of the placement plate 2. The first reduction motor 9 is fixedly installed in the middle of the lower surface of the base 1 and its output shaft passes through the upper surface of the base 1 and is connected to the spur gear 8 through a spline. The upper surfaces of the two first rack slide rods 6 and the second rack slide rods 7 on opposite sides are fixedly connected to clamping support columns 10. The four clamping support columns 10 are all inserted through the upper surface of the placement plate 2 and can slide laterally. The outside of the clamping support columns 10 is bonded with a rubber pad to prevent wear on the inner and outer rings of the bearing.

[0029] When the first geared motor 9 drives the spur gear 8 to rotate clockwise, it can drive the clamping supports 10 at the ends of the two first rack slides 6 and the two second rack slides 7 to move closer to the center of the placement plate 2, thereby clamping and fixing the outer ring of the bearing placed on the placement plate 2. When the first geared motor 9 drives the spur gear 8 to rotate counterclockwise, it can drive the clamping supports 10 around the perimeter to move away from each other, thereby adjusting the spacing of the four clamping supports 10 to facilitate clamping bearing outer rings of different diameters. When the grinding mechanism is adjusted to the inside of the bearing outer ring, the groove inside the bearing outer ring can be ground. At the same time, the four clamping supports 10 can be retracted inward according to the diameter of the bearing inner ring to be ground, and then the bearing inner ring is fitted onto the outside of the four clamping supports 10. Then, by driving the clamping supports 10 on the first rack slides 6 and the second rack slides 7 to move away from each other through the first geared motor 9, the inside of the bearing inner ring can be fixed, thereby grinding the groove outside the bearing inner ring through the grinding mechanism.

[0030] A vertical support rod 3 is fixedly connected to one side of the upper surface of the base 1, and a movable bracket 4 is slidably connected to the outside of the vertical support rod 3. An electric lifting rod 5 that can be pushed up and down is provided on the lower surface of the movable bracket 4 near the vertical support rod 3. The movable bracket 4 is sleeved on the outside of the vertical support rod 3 and can move up and down on its outside. There are two electric lifting rods 5, and the fixed rod parts of the two electric lifting rods 5 are fixedly connected to the upper surface of the base 1. The top ends of the movable rods of the two electric lifting rods 5 are fixedly connected to the movable bracket 4. The movable ends of the two electric lifting rods 5 move synchronously, which can drive the movable bracket 4 to rise or fall, thereby adjusting the height of the grinding mechanism.

[0031] A rotating mechanism is provided at the center of the movable support 4. The rotating mechanism includes a drive motor 11 and a rotating frame 12. The drive motor 11 is fixedly installed at the center of the upper surface of the movable support 4 and its output end passes through the lower part of the movable support 4 and is connected to the rotating frame 12 through a spline. The rotating frame 12 is located below the movable support 4. A limiting rod 13 for limiting the bidirectional displacement mechanism is fixedly connected to the bottom of the rotating frame 12. The operation of the drive motor 11 can drive the rotating frame 12 to rotate, thereby driving the bidirectional displacement mechanism and the grinding mechanism below to rotate, so that the grinding mechanism can grind the bearing ring groove placed on the placement plate 2.

[0032] A bidirectional displacement mechanism is provided at the movable end of the rotating mechanism corresponding to the placement plate 2. The bidirectional displacement mechanism includes a second reduction motor 14, a bidirectional threaded screw 15, and a transverse movable rod 16. The second reduction motor 14 is fixedly installed in the middle of one side of the rotating frame 12. The bidirectional threaded screw 15 is rotatably connected to the middle of the rotating frame 12 and connected to the output end of the second reduction motor 14 through a spline. The threads on both sides of the bidirectional threaded screw 15 are opposite to each other with the middle as the boundary. The bidirectional threaded screw 15 is vertically aligned with the limit rod 13. The top of the transverse movable rod 16 is provided with... The internal thread is connected to the outside of the double-threaded screw 15 through threaded transmission, and the transverse movable rod 16 is slidably connected to the outside of the limiting rod 13. There are two transverse movable rods 16, and the two transverse movable rods 16 are symmetrically arranged with the vertical center line of the double-threaded screw 15 as the axis of symmetry. The transverse movable rods 16 on both sides are limited by the limiting rod 13. When the second reduction motor 14 drives the double-threaded screw 15 to rotate, it can drive the two transverse movable rods 16 to move closer or further away from each other through the reverse threads at both ends, thereby adjusting the spacing of the bottom grinding mechanism.

[0033] The electric lifting pole 5, the first reduction motor 9, the drive motor 11, and the second reduction motor 14 are all electrically connected to the external circuit via wires and are also electrically connected to the external control unit.

[0034] The bottom end of the bidirectional displacement mechanism is equipped with a grinding mechanism for grinding the inner and outer ring grooves of the bearing. The grinding mechanism includes a rotating plate 17, a tension spring 18, an adjusting frame 19, a locking rod 20, and a grinding head 21. The rotating plate 17 is rotatably connected to the bottom end of the transverse movable rod 16. Two locking rods 20 are fixedly connected to the upper surface of the adjusting frame 19. The two locking rods 20 are symmetrically arranged about the vertical center line of the adjusting frame 19 and both pass through the interior of the rotating plate 17 and the transverse movable rod 16. The tension spring 18 is sleeved on the outside of the locking rod 20, and its top and bottom ends are respectively connected to the lower surface of the rotating plate 17. The upper surface of the adjustment frame 19 is fixedly connected to the surface. The tension spring 18 can exert an upward pulling force on the adjustment frame 19, so that the locking rods 20 on both sides can always be inserted into the inside of the rotating plate 17 and the bottom of the transverse movable rod 16, which can fix the position of the adjustment frame 19. The two ends of the adjustment frame 19 are respectively fixedly connected to grinding heads 21 of different diameters. The two grinding heads 21 can be adapted to the inner and outer ring grooves of gears of different sizes. The bottom of the two transverse movable rods 16 are provided with grinding mechanisms. The two grinding mechanisms are symmetrically arranged with the vertical center line of the bidirectional threaded screw 15 as the axis of symmetry.

[0035] When it is necessary to replace the grinding head 21, the adjusting bracket 19 can be pulled down to separate the locking rod 20 from the bottom of the transverse movable rod 16. Then, the adjusting bracket 19 can be rotated 180 degrees, and the rotating plate 17 will also rotate synchronously, which can swap the positions of the grinding heads 21 on both sides of the adjusting bracket 19. Then, the adjusting bracket 19 can be released, and the adjusting bracket 19 will pass through the rotating plate 17 again under the action of the tension spring 18 and be inserted into the bottom of the transverse movable rod 16, which can fix the positions of the adjusting bracket 19 and the grinding head 21, thereby completing the replacement of the grinding head 21.

[0036] In summary, the operating steps of this groove grinding equipment for machining the inner and outer rings of deep groove ball bearings are as follows:

[0037] 1. When it is necessary to grind the groove on the inner side of the bearing outer ring, place the bearing outer ring on the placement plate 2, and then control the first reduction motor 9 to run, so that the spur gear 8 drives the clamping support 10 on the first rack slide rod 6 and the second rack slide rod 7 on both sides to move closer to each other, so that the bearing outer ring can be clamped and fixed from the outside.

[0038] 2. Then, the grinding mechanism is lowered by controlling the electric lifting rod 5 to adjust the grinding head 21 on one side of the adjusting brackets 19 away from each other to the same size as the groove on the inner side of the bearing outer ring. Then, the bidirectional threaded screw 15 is driven to rotate by the second reduction motor 14 to make the transverse moving rods 16 on both sides move away from each other until the grinding heads 21 on both sides abut against the groove on the inner side of the bearing outer ring and then stop.

[0039] 3. Next, drive motor 11 is operated. Drive motor 11 can drive rotating frame 12 and the grinding mechanism below to rotate at high speed, thereby fully grinding the groove on the inner side of the outer ring of the bearing through grinding head 21 to reduce its frictional resistance.

[0040] 4. When it is necessary to grind the groove on the outer side of the bearing inner ring, the first geared motor 9 drives the clamping support 10 on the first rack slide rod 6 and the second rack slide rod 7 to move closer to each other until the closest side is reached. Then, the bearing inner ring is fitted onto the outside of the four clamping support 10 and placed on the placement plate 2. Then, the four clamping support 10 are moved away from each other to clamp the bearing inner ring.

[0041] 5. Then, control the second reduction motor 14 to move the transverse movable rods 16 on both sides to the maximum spacing, and use the electric lifting rod 5 to move the grinding mechanism down, so that the grinding head 21 is fully aligned with the groove on the outer side of the bearing inner ring. Then, control the second reduction motor 14 to move the transverse movable rods 16 on both sides closer to each other, so that the two grinding heads 21 on the adjacent side of the adjusting brackets 19 on both sides abut against the two sides of the groove. Then, run the drive motor 11, so that the grinding head 21 can grind the groove on the outer side of the bearing inner ring.

[0042] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A groove grinding apparatus for machining the inner and outer rings of a deep groove ball bearing, comprising a base (1) and a placement plate (2) for placing the bearing rings, characterized in that: The placement plate (2) is fixedly connected to the upper surface of the base (1). An adjustable clamping mechanism for clamping the bearing ring is provided between the base (1) and the placement plate (2), and the top end of the adjustable clamping mechanism passes through the upper surface of the placement plate (2). A vertical support rod (3) is fixedly connected to one side of the upper surface of the base (1), and a movable bracket (4) is slidably connected to the outside of the vertical support rod (3). An electric lifting rod (5) that can be pushed up and down is provided on the lower surface of the movable bracket (4) near the vertical support rod (3). A rotating mechanism is provided at the center of the movable bracket (4). A bidirectional displacement mechanism is provided at the part of the movable end of the rotating mechanism corresponding to the placement plate (2), and a grinding mechanism for grinding the inner and outer ring grooves of the bearing is provided at the bottom end of the bidirectional displacement mechanism.

2. The groove grinding equipment for machining the inner and outer rings of a deep groove ball bearing according to claim 1, characterized in that: The adjustable clamping mechanism includes a first rack and pinion slide (6), a second rack and pinion slide (7), a spur gear (8), a first geared motor (9), and a clamping support (10). There are two first rack and pinion slides (6) and two second rack and pinion slides (7). The two first rack and pinion slides (6) are arranged parallel to each other and are respectively connected to the two sides of the top of the spur gear (8). The two second rack and pinion slides (7) are arranged parallel to each other and are respectively connected to the two sides of the bottom of the spur gear (8). The two first rack and pinion slides (6) and the two second rack and pinion slides (7) are arranged perpendicular to each other.

3. The groove grinding equipment for machining the inner and outer rings of a deep groove ball bearing according to claim 2, characterized in that: The first rack and pinion (6), the second rack and pinion (7), and the spur gear (8) are all disposed between the placement plate (2) and the base (1). The spur gear (8) is vertically rotatably connected to the center of the lower surface of the placement plate (2). The first geared motor (9) is fixedly installed in the middle of the lower surface of the base (1), and its output shaft passes through the upper surface of the base (1) and is connected to the spur gear (8) through a spline. The upper surfaces of the two first rack and pinion (6) and the second rack and pinion (7) on opposite sides are fixedly connected to clamping support columns (10). The four clamping support columns (10) are all disposed on the upper surface of the placement plate (2) and can slide laterally.

4. The groove grinding equipment for machining the inner and outer rings of a deep groove ball bearing according to claim 1, characterized in that: The movable bracket (4) is sleeved on the outside of the vertical support rod (3) and can move up and down on the outside of it. There are two electric lifting rods (5), and the fixed rod parts of the two electric lifting rods (5) are fixedly connected to the upper surface of the base (1). The top of the movable rod of the two electric lifting rods (5) is fixedly connected to the movable bracket (4).

5. The groove grinding equipment for machining the inner and outer rings of a deep groove ball bearing according to claim 1, characterized in that: The rotating mechanism includes a drive motor (11) and a rotating frame (12). The drive motor (11) is fixedly installed at the center of the upper surface of the movable support (4) and its output end passes through the lower part of the movable support (4) and is connected to the rotating frame (12) through a spline. The rotating frame (12) is located below the movable support (4). A limiting rod (13) for limiting the bidirectional displacement mechanism is fixedly connected to the bottom of the rotating frame (12).

6. The groove grinding equipment for machining the inner and outer rings of a deep groove ball bearing according to claim 5, characterized in that: The bidirectional displacement mechanism includes a second geared motor (14), a bidirectional threaded screw (15), and a transverse movable rod (16). The second geared motor (14) is fixedly installed in the middle of one side of the rotating frame (12). The bidirectional threaded screw (15) is rotatably connected to the middle of the rotating frame (12) and connected to the output end of the second geared motor (14) through a spline. The bidirectional threaded screw (15) is vertically corresponding to the limiting rod (13). The top of the transverse movable rod (16) is provided with an internal thread and is connected to the outside of the bidirectional threaded screw (15) through thread transmission. The transverse movable rod (16) is laterally slidably connected to the outside of the limiting rod (13). There are two transverse movable rods (16), and the two transverse movable rods (16) are symmetrically arranged with the vertical center line of the bidirectional threaded screw (15) as the axis of symmetry.

7. The groove grinding equipment for machining the inner and outer rings of a deep groove ball bearing according to claim 6, characterized in that: The grinding mechanism includes a rotating plate (17), a tension spring (18), an adjusting frame (19), a locking rod (20), and a grinding head (21). The rotating plate (17) is rotatably connected to the bottom end of the transverse movable rod (16). The locking rod (20) is fixedly connected to the upper surface of the adjusting frame (19) and there are two locking rods. The two locking rods (20) are symmetrically arranged with the vertical center line of the adjusting frame (19) as the axis of symmetry and both pass through the interior of the rotating plate (17) and the transverse movable rod (16). The tension spring (18) is sleeved on the outside of the locking rod (20) and its top and bottom ends are fixedly connected to the lower surface of the rotating plate (17) and the upper surface of the adjusting frame (19), respectively. Grinding heads (21) of different diameters are fixedly connected to both ends of the adjusting frame (19).

8. The groove grinding equipment for machining the inner and outer rings of a deep groove ball bearing according to claim 6, characterized in that: The bottom of each of the two transverse movable rods (16) is provided with a grinding mechanism, and the two grinding mechanisms are symmetrically arranged with the vertical center line of the bidirectional threaded screw (15) as the axis of symmetry.

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