A device for processing internal grooves of a ball cage

Abstract

The utility model relates to ball cage processing technical field, concretely to a ball cage internal groove processing device, including workstation and ball cage body, the inside of ball cage body is provided with groove part and spline groove, the top of workstation is provided with base, ball cage body can be placed in base inside movably. The utility model material pump work pumps the grinding fluid in the liquid tank into the L shape pipe, then is transported to the groove part inside ball cage body through the hose, the sealing rubber pad set up at the bottom plays the effect of sealing, the periodic positive and negative rotation of control motor, the rotation of motor drives screw rod, screw rod drives toothed plate back and forth to move, toothed plate drives gear reciprocating swing, gear drives spline shaft rotation, spline shaft drives base rotation at the same time through cooperation part drives ball cage body rotation, the centrifugal force produced by rotation makes the grinding fluid of groove part continuously polish groove part, thereby dispels its internal burrs, the degree of automation is high, avoids the injury when manual polishing.

Description

Technical Field

[0001] This utility model relates to the field of ball cage processing technology, specifically to a ball cage internal groove processing device. Background Technology

[0002] The ball cage groove is the core component of the ball cage constant velocity universal joint. The function of the groove is to provide a precise running track for the steel ball that transmits torque, and the steel ball is constrained to roll within these grooves.

[0003] When a universal joint is in operation, the inner and outer ball cages will swing and rotate relative to each other. The groove design on the cage ensures that the steel balls are always in the plane of torque transmission, thereby achieving constant speed rotation between the input and output shafts and avoiding speed fluctuations and vibrations. During the machining of the ball cage (such as milling, broaching, grinding), burrs will inevitably be generated on the edges of the grooves. These burrs are tiny, irregular metal protrusions or flanges. Thoroughly removing these burrs is crucial for the performance and reliability of the ball cage universal joint.

[0004] However, some methods currently remove burrs from the grooves of ball cages manually. The inside of the ball cage grooves is quite complex, and manual operation can easily result in accidental punctures from burrs, posing a certain degree of danger. Therefore, we propose a ball cage internal groove processing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for processing internal grooves in ball cages to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for processing internal grooves in a ball cage, comprising a worktable and a ball cage body. The ball cage body has a groove and a spline groove inside. A base is provided on the top of the worktable, and the ball cage body is movably placed within the base. The inner wall of the base mates with the bottom of the ball cage body. A spline shaft is fixedly inserted through the base. The top end of the spline shaft has a mating part and passes through the ball cage body, engaging with the spline groove through the mating part. The bottom end of the spline shaft passes through the worktable and is fixedly connected to a gear. The spline shaft is rotatably connected to the worktable via a bearing. Two fixed plates are fixedly connected to the bottom of the worktable. A screw is rotatably connected between the two fixed plates via a bearing. A toothed plate is threaded onto the outer side of the screw, meshing with the gear. A pressure plate is provided above the base, and a sealing rubber gasket is provided at the bottom of the pressure plate. A flexible hose passes through the pressure plate.

[0007] More preferably, a liquid tank is provided on the top of the workbench, and the liquid tank is filled with grinding fluid.

[0008] More preferably, a material pump is provided at the top of the liquid tank, the inlet of the material pump extends into the liquid tank, and the outlet of the material pump is connected to an L-shaped pipe.

[0009] More preferably, the top end of the hose is connected to the L-shaped tube, and the hose is rotatably connected to the pressure plate via a rotary joint.

[0010] More preferably, connecting blocks are provided on both sides of the pressure plate, and electric push rods are provided on both sides of the base, with the movable end of the electric push rod being fixedly connected to the connecting blocks.

[0011] More preferably, a square rod is fixedly connected between the two fixed plates, and the toothed plate is slidably sleeved on the outside of the square rod.

[0012] More preferably, a motor is fixedly connected to the side of the fixing plate, and the end of the output shaft of the motor is fixedly connected to the screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this utility model, the ball cage body is placed in the base, the electric push rod drives the pressure plate to move downward, the hose is stretched, the material pump works to pump the grinding fluid in the liquid tank into the L-shaped tube, and then delivers it to the groove inside the ball cage body through the hose. The pressure plate continues to press down, and the sealing rubber gasket at the bottom is compressed, achieving a sealing effect. The control motor rotates periodically in both directions, the motor drives the screw to rotate, the screw drives the toothed plate to move back and forth, the toothed plate drives the gear to swing back and forth, the gear drives the spline shaft to rotate, and the spline shaft drives the base to rotate while driving the ball cage body to rotate through the mating part. The centrifugal force generated by the rotation causes the grinding fluid in the groove to continuously grind the groove, thereby removing the burrs inside. It has a high degree of automation and avoids injury during manual grinding. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is an exploded view of the structure at the connection between the spline shaft and the ball cage body of this utility model;

[0017] Figure 4 for Figure 2 Enlarged 3D structural diagram of area A in the middle.

[0018] In the diagram: 1. Workbench; 2. Base; 3. Ball cage body; 4. Groove; 5. Spline groove; 6. Spline shaft; 7. Mating part; 8. Liquid tank; 9. Material pump; 10. L-shaped tube; 11. Electric actuator; 12. Connecting block; 13. Pressure plate; 14. Sealing rubber gasket; 15. Hose; 16. Gear; 17. Fixing plate; 18. Screw; 19. Motor; 20. Square rod; 21. Gear plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figure 1-4 This utility model provides a technical solution: a device for machining internal grooves of a ball cage, including a workbench 1 and a ball cage body 3. The ball cage body 3 has a groove 4 and a spline groove 5 inside. A base 2 is provided on the top of the workbench 1, and the ball cage body 3 is movably placed inside the base 2. The inner wall of the base 2 mates with the bottom of the ball cage body 3. A spline shaft 6 is fixedly inserted into the base 2. The top of the spline shaft 6 has a mating part 7 and passes into the ball cage body 3, mating with the spline groove 5 through the mating part 7. The bottom end of the spline shaft 6 passes through the workbench 1 and is fixedly connected to a gear 16. The spline shaft 6 is rotatably connected to the workbench 1 via a bearing. Two fixing plates 17 are fixedly connected to the bottom of the workbench 1. A screw 18 is rotatably connected between the two fixing plates 17 via a bearing. A toothed plate 21 is threaded onto the outer side of the screw 18, meshing with the gear 16. A pressure plate 13 is provided above the base 2, and a sealing rubber is provided at the bottom of the pressure plate 13. A flexible hose 15 runs through the rubber pad 14 and pressure plate 13. In use, the ball cage body 3 is placed in the base 2, and the electric push rod 11 drives the pressure plate 13 to move downward. The hose 15 is stretched, and the material pump 9 works to pump the grinding fluid in the liquid tank 8 into the L-shaped tube 10. Then, it is delivered to the groove 4 inside the ball cage body 3 through the hose 15. The pressure plate 13 continues to press down, and the sealing rubber pad 14 at the bottom is compressed, achieving a sealing effect. The control motor 19 rotates periodically in the forward and reverse directions. The motor 19 drives the screw 18 to rotate, and the screw 18 drives the toothed plate 21 to move back and forth. The toothed plate 21 drives the gear 16 to swing back and forth, and the gear 16 drives the spline shaft 6 to rotate. The spline shaft 6 drives the base 2 to rotate, and at the same time, it drives the ball cage body 3 to rotate through the mating part 7. The centrifugal force generated by the rotation causes the grinding fluid in the groove 4 to continuously grind the groove 4, thereby removing the burrs inside. The automation level is high, avoiding injury during manual grinding.

[0021] In this embodiment, specifically: a liquid tank 8 is provided on the top of the workbench 1, and the liquid tank 8 is filled with grinding fluid. The grinding fluid consists of 60% low-viscosity lubricating oil and 40% silica particles.

[0022] In this embodiment, specifically: a material pump 9 is provided on the top of the liquid tank 8, the inlet of the material pump 9 extends into the liquid tank 8, and the outlet of the material pump 9 is connected to an L-shaped pipe 10.

[0023] In this embodiment, specifically: the top end of the hose 15 is connected to the L-shaped tube 10, and the hose 15 is rotatably connected to the pressure plate 13 through a rotary joint;

[0024] In this embodiment, specifically: connecting blocks 12 are provided on both sides of the pressure plate 13, and electric push rods 11 are provided on both sides of the base 2. The movable end of the electric push rod 11 is fixedly connected to the connecting block 12.

[0025] In this embodiment, specifically: a square rod 20 is fixedly connected between two fixed plates 17, and a toothed plate 21 is slidably sleeved on the outside of the square rod 20;

[0026] In this embodiment, specifically: a motor 19 is fixedly connected to the side of the fixing plate 17, and the output shaft end of the motor 19 is fixedly connected to the screw 18.

[0027] In operation, this invention works as follows: The ball cage body 3 is placed inside the base 2. The electric push rod 11 moves the pressure plate 13 downwards, stretching the hose 15. The material pump 9 pumps the grinding fluid from the tank 8 into the L-shaped tube 10, and then delivers it through the hose 15 to the groove 4 inside the ball cage body 3. The pressure plate 13 continuously presses down, compressing the sealing rubber gasket 14 at the bottom, achieving a sealing effect. The control motor 19 rotates periodically in both directions, driving the screw 18 to rotate. The screw 18 drives the toothed plate 21 to move back and forth, which in turn drives the gear 16 to swing back and forth. The gear 16 drives the spline shaft 6 to rotate, and the spline shaft 6 drives the base 2 to rotate while simultaneously driving the ball cage body 3 to rotate through the mating part 7. The centrifugal force generated by the rotation causes the grinding fluid in the groove 4 to continuously polish the groove 4, thereby removing internal burrs. This method is highly automated and avoids injuries that may occur during manual polishing.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for machining internal grooves in a ball cage, comprising a worktable (1) and a ball cage body (3), wherein the ball cage body (3) has a groove (4) and a spline groove (5) inside, characterized in that: The workbench (1) is topped with a base (2), and the ball cage body (3) is movably placed inside the base (2). The inner wall of the base (2) is fitted with the bottom of the ball cage body (3). A spline shaft (6) is fixedly inserted inside the base (2). The top of the spline shaft (6) is provided with a mating part (7) and is inserted into the ball cage body (3). The mating part (7) is fitted with the spline groove (5). The bottom end of the spline shaft (6) passes through the workbench (1) and is fixedly connected with a gear (16). 6) The worktable (1) is rotatably connected to the bearing. Two fixed plates (17) are fixedly connected to the bottom of the worktable (1). A screw (18) is rotatably connected between the two fixed plates (17) through the bearing. A toothed plate (21) is threaded on the outside of the screw (18). The toothed plate (21) meshes with a gear (16). A pressure plate (13) is provided above the base (2). A sealing rubber gasket (14) is provided at the bottom of the pressure plate (13). A flexible hose (15) is provided inside the pressure plate (13).

2. The device for processing internal grooves of a ball cage according to claim 1, characterized in that: The top of the workbench (1) is provided with a liquid tank (8), which is filled with grinding fluid.

3. The device for processing internal grooves of a ball cage according to claim 2, characterized in that: A material pump (9) is provided on the top of the liquid tank (8). The inlet of the material pump (9) extends into the liquid tank (8), and the outlet of the material pump (9) is connected to an L-shaped pipe (10).

4. The device for processing internal grooves of a ball cage according to claim 3, characterized in that: The top end of the hose (15) is connected to the L-shaped tube (10), and the hose (15) is rotatably connected to the pressure plate (13) through a rotary joint.

5. The device for processing internal grooves of a ball cage according to claim 4, characterized in that: Connecting blocks (12) are provided on both sides of the pressure plate (13), and electric push rods (11) are provided on both sides of the base (2). The movable end of the electric push rod (11) is fixedly connected to the connecting block (12).

6. The apparatus for processing internal grooves of a ball cage according to claim 5, characterized in that: A square rod (20) is fixedly connected between the two fixed plates (17), and the toothed plate (21) is slidably sleeved on the outside of the square rod (20).

7. The apparatus for processing internal grooves of a ball cage according to claim 6, characterized in that: A motor (19) is fixedly connected to the side of the fixing plate (17), and the output shaft end of the motor (19) is fixedly connected to the screw (18).

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