Automobile ball cage outer ring polishing equipment

Abstract

The invention belongs to the technical field of grinding and polishing equipment, and particularly relates to automobile ball cage outer ring polishing equipment which comprises a workbench. A positioning chuck is mounted on the workbench; two hydraulic cylinders are mounted on the right side of the positioning chuck and located on the workbench; a fixed table is mounted at the top of the hydraulic cylinder; a vertical plate is installed on the side, away from the positioning chuck, of the fixing table. An electric telescopic rod is mounted on the vertical plate; a first sliding groove is formed in the top end face of the fixing table. An L-shaped plate is slidably connected to the upper surface of the fixed table; the end face of the side, attached to the fixing table, of the L-shaped plate is fixedly connected with a first sliding block. The electric telescopic rod extends to one side of the L-shaped plate and is fixedly connected with the L-shaped plate; a grinding and polishing assembly is mounted on the L-shaped plate; and by arranging the grinding and polishing assembly, the overall outer ring face of the inner ball cage can be ground at a time, and the machining step for grinding the inner ball cage does not need to be added.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding and polishing equipment, in particular to an automobile ball cage outer ring polishing equipment. Background Art

[0002] The ball joint, also called "constant velocity joint", is an important part of the car transmission system. Its function is to transfer the engine power from the transmission to the drive wheel to drive the car at high speed. There are many types of constant velocity joints used in cars, which can be divided into inner ball joints and outer ball joints. The inner ball joints are divided into three-pronged type, six-ball type, etc.

[0003] The three-pronged inner ball cage transmits power through the rolling and sliding of the three-pronged bearing in the track inside the bell-shaped housing; when the drive shaft rotates, the torque is transmitted to the three-pronged ball ring through the input shaft connected to the inner ball cage, and the three connecting rods on the three-pronged ball ring drive the needle bearing to move in the track of the bell-shaped housing. Due to the special design of the track and the symmetry of the three-pronged structure, no matter how the angle between the drive shaft and the transmission changes, and the axial expansion and contraction of the drive shaft during the movement of the vehicle, the power can be transmitted from the transmission to the drive wheel at a constant speed, ensuring the smooth driving of the vehicle;

[0004] Since there are three arc-shaped grooves on the outer ring surface of the inner ball cage, when grinding and polishing the outer ring surface of the inner ball cage, traditional polishing equipment can only polish the outer ring surface of the inner ball cage, and cannot polish the arc surface inside the arc-shaped groove at the same time. Therefore, it is necessary to polish the arc surface inside the arc-shaped groove separately, which will increase the processing steps of the inner ball cage. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art and solve the above technical problems, the present invention proposes an automobile ball cage outer ring polishing device, which can grind the outer ring surface of the entire inner ball cage at one time by setting a grinding and polishing component, without adding processing steps when grinding the inner ball cage. The specific structure is as follows;

[0006] An automobile ball cage outer ring polishing device comprises a workbench; a positioning chuck is installed on the workbench, and the positioning chuck is used to clamp the inner ball cage;

[0007] The positioning chuck is mounted on a driving mechanism, and the driving mechanism is used to drive the positioning chuck to rotate;

[0008] Two hydraulic cylinders are installed on the workbench on the right side of the positioning chuck, and the hydraulic cylinders are in an extended state in the initial state;

[0009] A fixed platform is installed on the top of the hydraulic cylinder; a vertical plate is installed on the side of the fixed platform away from the positioning chuck; an electric telescopic rod is installed on the vertical plate;

[0010] A first slide groove is provided on the top end surface of the fixed platform; an L-shaped plate is slidably connected to the upper surface of the fixed platform; a first slider is fixedly connected to the end surface of one side of the L-shaped plate that is in contact with the fixed platform, and the first slider slides in the first slide groove;

[0011] The electric telescopic rod extends to one side of the L-shaped plate and is fixedly connected to the L-shaped plate;

[0012] A grinding and polishing assembly is installed on the L-shaped plate, and the grinding and polishing assembly is used for grinding and polishing the outer ring surface of the inner ball cage.

[0013] Preferably, the grinding and polishing assembly comprises a U-shaped frame;

[0014] The U-shaped frame slides on the surface of the L-shaped plate; the opening of the U-shaped frame faces the positioning chuck; a second sliding groove is provided on the top end surface of the L-shaped plate;

[0015] A second sliding block is fixedly connected to the end surface of one side of the U-shaped frame that is in contact with the L-shaped plate, and the second sliding block slides in the second sliding groove;

[0016] The U-shaped frame is fixedly connected to one end surface of the vertical plate with two guide rods, and both guide rods pass through the L-shaped plate and are slidably connected to the L-shaped plate;

[0017] Two springs are connected between the U-shaped frame and the L-shaped plate, and two guide rods pass through the springs;

[0018] The inner ring of the U-shaped frame is rotatably equipped with two rollers, one of which is located at the opening of the U-shaped frame and the other is close to the guide rod;

[0019] The roller located at the opening of the U-shaped frame partially extends out of the opening of the U-shaped frame and is partially located at the left side of the U-shaped frame;

[0020] A servo motor is installed on the U-shaped frame above the rotating roller close to the guide rod, and the servo motor is used to drive the rotating roller to rotate;

[0021] A grinding belt is connected to the two rotating rollers for joint rotation, and the leftmost side of the grinding belt extends to the left from the opening of the U-shaped frame;

[0022] The upper and lower sides of the rotating roller located at the opening of the U-shaped frame, and the top and bottom positions of the U-shaped frame are rotatably connected to the limiting rollers;

[0023] The diameter formed when the grinding belt passes around the rotating roller is the same as the diameter of the limiting roller, and the limiting roller is concentrically arranged with the rotating roller at the opening of the U-shaped frame.

[0024] Preferably, both of the two limiting rollers have air cavities inside;

[0025] The end surfaces of the two limiting rollers on the opposite sides are both rotatably mounted with rotating tubes, and the rotating tubes are connected to the external air pump through the conduit;

[0026] The outer ring surfaces of the two limiting rollers are provided with evenly arranged air holes, and the air holes are used for sucking metal powder generated during grinding.

[0027] Preferably, the two limiting rollers are located on a side away from the inner cage, and arc plates are fixedly connected to the top and bottom end surfaces of the U-shaped frame;

[0028] The arc plate is tangent to the adjacent limiting roller, and the arc plate is used for limiting support of the limiting roller.

[0029] Preferably, both sides of the limiting roller tangent to the arc plate are fixedly connected with a scraping layer on the inner ring surface of the arc plate;

[0030] The scraping layer is in contact with the limiting roller at one side thereof, and the scraping layer is made of rubber material.

[0031] Preferably, both of the arc-shaped plates are provided with cylindrical grooves;

[0032] The end faces of the two arc plates on the opposite side are connected with pipes, and the connecting pipes are connected with the columnar grooves; the connecting pipes are connected with the external air pump through the conduit; and the inner ring surface of the arc plate is provided with a strip groove.

[0033] Preferably, the tops of the jaws of the positioning chuck are fixedly connected with arc-shaped vertical plates.

[0034] Preferably, evenly arranged balls are rotated on the top end surface of the arc-shaped vertical plate.

[0035] The beneficial effects of the present invention are as follows:

[0036] 1. The automobile ball cage outer ring polishing device described in the present invention is implemented by rotatably installing a grinding belt on a sliding U-shaped frame. When the U-shaped frame is grinding the outer ring surface of the inner ball cage, the limiting roller rotates along the outer ring surface of the inner ball cage and limits the grinding belt, so that the grinding belt can be ground along the outer cylindrical surface and the arc-shaped groove of the inner ball cage, so that the outer ring surface of the entire inner ball cage can be ground at one time without adding processing steps when grinding the inner ball cage. At the same time, it can be avoided that when the arc surface of the arc-shaped groove is polished alone, if the grinding wheel contacts the polished outer ring surface of the inner ball cage, the outer ring surface of the inner ball cage will be scratched, thereby affecting the quality.

[0037] 2. The automobile ball cage outer ring polishing equipment described in the present invention limits the distance between the grinding belt and the inner ball cage outer ring surface by a limiting roller, so as to prevent the grinding belt from moving alone from the arc groove of the inner ball cage to the outer cylindrical surface of the inner ball cage, which increases the force of the grinding belt on the inner ball cage, resulting in uneven grinding of some parts of the inner ball cage outer ring surface, thereby affecting the quality of the inner ball cage.

[0038] 3. The automobile ball cage outer ring polishing equipment described in the present invention has a scraping layer on the arc plate. When the limiting roller rotates, it will rotate along the scraping layer. The scraping layer can scrape off the metal powder adhered to the surface of the limiting roller. The scraped metal powder will be sucked into the air cavity and then discharged. In this process, the metal powder can be prevented from adhering to the limiting roller. When the limiting roller with metal powder adhering to it contacts the outer ring surface of the inner ball cage, the distance between the limiting roller and the inner ball cage will be increased due to the presence of powder, thereby causing the distance between the grinding belt and the inner ball cage to increase, making it impossible to grind the outer ring surface of the inner ball cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] Figure 1 is a stereogram of the polishing device of the present invention as a whole;

[0041] Figure 2 is a stereogram of the polishing device of the present invention from another perspective;

[0042] Figure 3 It is a structural diagram of the positioning chuck and the inner ball cage in the present invention;

[0043] Figure 4 It is a separation structure diagram of the grinding and polishing assembly in the present invention;

[0044] Figure 5 It is a structural diagram of the limiting roller and the arc plate in the present invention;

[0045] Figure 6 is a top view of the polishing device of the present invention as a whole;

[0046] Figure 7 The present invention Figure 6 A partial enlarged view of the middle part;

[0047] Figure 8 The present invention Figure 6 Stepped section view at the middle BB;

[0048] Fig. 9 The present invention Figure 8 A partial enlarged view of point C in the middle.

[0049] In the figure: 1. positioning chuck; 11. inner ball cage; 12. arc-shaped vertical plate; 13. ball bearing; 2. hydraulic cylinder; 21. fixed table; 22. vertical plate; 23. electric telescopic rod; 24. first slide groove; 25. L-shaped plate; 26. first slider; 3. U-shaped frame; 31. second slide groove; 32. second slider; 33. guide rod; 34. roller; 35. servo motor; 36. grinding belt; 4. limiting roller; 41. rotating tube; 42. air hole; 43. arc-shaped plate; 44. scraping layer; 45. columnar groove; 46. connecting pipe; 47. strip groove. DETAILED DESCRIPTION

[0050] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0051] Embodiment 1: Figures 1 to 9 As shown, the automobile ball cage outer ring polishing device described in the present invention comprises a workbench; a positioning chuck 1 is installed on the workbench, and the positioning chuck 1 is used to clamp the inner ball cage 11;

[0052] The positioning chuck 1 is mounted on a driving mechanism, and the driving mechanism is used to drive the positioning chuck 1 to rotate;

[0053] Two hydraulic cylinders 2 are installed on the workbench on the right side of the positioning chuck 1, and the hydraulic cylinders 2 are in an extended state in the initial state;

[0054] A fixing platform 21 is installed on the top of the hydraulic cylinder 2; a vertical plate 22 is installed on the side of the fixing platform 21 away from the positioning chuck 1; an electric telescopic rod 23 is installed on the vertical plate 22;

[0055] A first slide groove 24 is provided on the top end surface of the fixed platform 21; an L-shaped plate 25 is slidably connected to the upper surface of the fixed platform 21; a first slider 26 is fixedly connected to the end surface of one side of the L-shaped plate 25 that is in contact with the fixed platform 21, and the first slider 26 slides in the first slide groove 24;

[0056] The electric telescopic rod 23 extends to one side of the L-shaped plate 25 and is fixedly connected to the L-shaped plate 25;

[0057] The L-shaped plate 25 is provided with a grinding and polishing assembly, and the grinding and polishing assembly is used to grind and polish the outer ring surface of the inner ball cage 11;

[0058] In this embodiment, the grinding and polishing assembly includes a U-shaped frame 3;

[0059] The U-shaped frame 3 slides on the surface of the L-shaped plate 25; the opening of the U-shaped frame 3 faces the positioning chuck 1; a second sliding groove 31 is provided on the top end surface of the L-shaped plate 25;

[0060] A second slider 32 is fixedly connected to one end surface of the U-shaped frame 3 that is in contact with the L-shaped plate 25, and the second slider 32 slides in the second slide groove 31;

[0061] The U-shaped frame 3 is fixedly connected to one end surface of the vertical plate 22 with two guide rods 33, and the guide rods 33 pass through the L-shaped plate 25 and are slidably connected to the L-shaped plate 25;

[0062] Two springs are connected between the U-shaped frame 3 and the L-shaped plate 25, and two guide rods 33 pass through the springs;

[0063] The inner ring of the U-shaped frame 3 is rotatably mounted with two rollers 34, one of which is located at the opening of the U-shaped frame 3, and the other roller 34 is close to the guide rod 33;

[0064] The roller 34 located at the opening of the U-shaped frame 3 partially extends out of the opening of the U-shaped frame 3 and is partially located at the left side of the U-shaped frame 3;

[0065] A servo motor 35 is installed on the U-shaped frame 3 above the rotating roller 34 close to the guide rod 33, and the servo motor 35 is used to drive the rotating roller 34 to rotate;

[0066] The two rollers 34 are connected to a grinding belt 36 for joint rotation, and the leftmost side of the grinding belt 36 extends to the left from the opening of the U-shaped frame 3;

[0067] The upper and lower sides of the rotating roller 34 located at the opening of the U-shaped frame 3 and the top and bottom positions of the U-shaped frame 3 are rotatably connected to the limiting roller 4;

[0068] The diameter formed when the grinding belt 36 passes around the rotating roller 34 is the same as the diameter of the limiting roller 4, and the limiting roller 4 is concentrically arranged with the rotating roller 34 at the opening of the U-shaped frame 3;

[0069] Specifically, when grinding and polishing the outer ring surface of the inner ball cage 11, first install the shaft on the inner ball cage 11 in the positioning chuck 1, and then control the positioning chuck 1 to be gradually tightened, so that the shaft on the inner ball cage 11 can be clamped, so that the inner ball cage 11 can be fixed and the inner ball cage 11 is in a vertical upward state, and then control the electric telescopic rod 23 to extend. The extended electric telescopic rod 23 will push the L-shaped plate 25 to move left on the fixed platform 21, and at the same time, the L-shaped plate 25 will drive the first sliding block 26 to move left in the first sliding groove 24. Since the grinding and polishing assembly is arranged on the L-shaped plate 25 as a whole, it will drive the grinding and polishing assembly to move toward one side of the inner ball cage 11 as a whole. When the grinding and polishing assembly moves, it will drive the U-shaped frame 3, The rotating roller 34 and the grinding belt 36 move to the left. When the grinding belt 36 contacts the outer ring surface of the inner ball cage 11, the diameter formed by the grinding belt 36 when it passes around the rotating roller 34 is the same as the diameter of the limiting roller 4. Therefore, the limiting roller 4 located below also contacts the outer ring surface of the inner ball cage 11. Then, the L-shaped plate 25 is controlled to move. Since the grinding belt 36 and the limiting roller 4 below are blocked by the inner ball cage 11, the rotating roller 34 and the U-shaped frame 3 are pushed to move to the right on the L-shaped plate 25, and the second slider 32 is driven to move in the second slide groove 31. At the same time, the guide rod 33 gradually extends from the L-shaped plate 25 and compresses the spring. Then, the electric telescopic rod 23 is controlled to stop extending, and then the outer ring surface of the inner ball cage 11 can be ground and polished.

[0070] More specifically, when grinding and polishing the outer ring surface of the inner ball cage 11, the driving mechanism and the servo motor 35 are controlled to work. When the driving mechanism is working, the positioning chuck 1 and the inner ball cage 11 will be driven to rotate slowly as a whole. When the servo motor 35 rotates, one of the rollers 34 will be driven to rotate, thereby driving the grinding belt 36 to rotate as a whole, and the grinding belt 36 and the inner ball cage 11 have the same rotation direction. Since the outer ring surface of the inner ball cage 11 is in contact with the grinding belt 36 and the limiting roller 4 below, during the rotation of the inner ball cage 11, the outer ring surface of the inner ball cage 11 and the arc-shaped groove will pass through the rotating grinding belt 36 and the limiting roller 4 below in sequence, and the limiting roller 4 below will rotate along the outer ring surface of the inner ball cage 11, and the rotating grinding belt 36 will grind and polish the outer ring surface of the inner ball cage 11 passing through.

[0071] Since the spring connecting the U-shaped frame 3 and the L-shaped plate 25 is in a compressed state, when the arc groove on the inner ball cage 11 rotates to the side of the grinding belt 36 and the limiting roller 4, the limiting roller 4 rotating along the outer ring surface of the inner ball cage 11 will rotate into the arc groove, and at the same time, the U-shaped frame 3 moves as a whole toward the position of the arc groove of the inner ball cage 11 under the action of the spring, and at the same time, it will drive the grinding belt 36 to enter the arc groove, thereby grinding the arc surface in the arc groove. When the arc groove of the inner ball cage 11 gradually turns away from the limiting roller 4, the limiting roller 4 and the grinding belt 36 will move along the contour of the arc groove toward the normal outer cylindrical surface of the inner ball cage 11, and at the same time, it will push the U-shaped frame 3 to move right as a whole and The compression spring is used to grind the outer cylindrical surface of the inner ball cage 11 when the outer cylindrical surface of the inner ball cage 11 rotates to the position of the grinding belt 36, so that the outer cylindrical surface of the inner ball cage 11 can be ground as a whole; since the limiting roller 4 is always pressed against the outer cylindrical surface of the inner ball cage 11 and rotates along the outer cylindrical surface of the inner ball cage 11, the distance between the grinding belt 36 and the outer cylindrical surface of the inner ball cage 11 can be limited by the limiting roller 4, so as to avoid the grinding belt 36 moving from the arc groove of the inner ball cage 11 to the outer cylindrical surface of the inner ball cage 11 alone, so that the force of the grinding belt 36 on the inner ball cage 11 is increased, resulting in uneven grinding of some positions of the outer cylindrical surface of the inner ball cage 11, thereby affecting the quality of the inner ball cage 11;

[0072] Furthermore, when the inner ball cage 11 is being polished, the hydraulic cylinder 2 is controlled to gradually move downward, thereby driving the entire grinding and polishing assembly to move downward, thereby driving the grinding belt 36 and the two limiting rollers 4 to move downward. When the grinding and polishing assembly moves downward as a whole, the limiting roller 4 located above will gradually contact the outer ring surface of the inner ball cage 11. When the limiting roller 4 below the grinding belt 36 moves down to the bottom of the outer ball cage, the limiting roller 4 located above will also abut against the outer ring surface of the inner ball cage 11 and rotate along the inner ball cage 11, so that the distance between the grinding belt 36 and the outer ring surface of the inner ball cage 11 can continue to be limited by the limiting roller 4 above. When the grinding of the inner ball cage 11 is completed, the electric telescopic rod 23 is controlled to retract, thereby driving the entire grinding and polishing assembly away from the inner ball cage 11. Subsequently, the ground inner ball cage 11 is removed, and the inner ball cage 11 to be ground is replaced.

[0073] Furthermore, by rotatably installing the grinding belt 36 on the sliding U-shaped frame 3, when the U-shaped frame 3 is grinding the outer ring surface of the inner ball cage 11, the limiting roller 4 rotates along the outer ring surface of the inner ball cage 11 and limits the grinding belt 36, so that the grinding belt 36 can be ground along the outer cylindrical surface and the arc-shaped groove of the inner ball cage 11, so that the outer ring surface of the entire inner ball cage 11 can be ground at one time, without adding processing steps when grinding the inner ball cage 11, and at the same time, it can be avoided that when the arc surface of the arc-shaped groove is ground alone, if the grinding wheel contacts the polished outer ring surface of the inner ball cage 11, the outer ring surface of the inner ball cage 11 will be scratched, thereby affecting the quality;

[0074] At the same time, the distance between the grinding belt 36 and the outer ring surface of the inner ball cage 11 is limited by the limiting roller 4 to prevent the grinding belt 36 from moving alone from the arc groove of the inner ball cage 11 to the outer cylindrical surface of the inner ball cage 11, which increases the force of the grinding belt 36 on the inner ball cage 11, resulting in uneven grinding of some parts of the outer ring surface of the inner ball cage 11, thereby affecting the quality of the inner ball cage 11.

[0075] Embodiment 2: The two limiting rollers 4 are provided with air cavities inside; the two limiting rollers 4 are rotatably mounted with rotating tubes 41 on the end surfaces on the opposite sides thereof, and the rotating tubes 41 are connected to an external air pump through a conduit;

[0076] The outer ring surfaces of the two limiting rollers 4 are provided with evenly arranged air holes 42, and the air holes 42 are used to suck the metal powder generated during grinding;

[0077] In this embodiment, the two limiting rollers 4 are located on the side away from the inner cage 11, and the arc-shaped plates 43 are fixedly connected to the top and bottom end surfaces of the U-shaped frame 3;

[0078] The arc plate 43 is tangent to the adjacent limiting roller 4, and the arc plate 43 is used to provide limiting support to the limiting roller 4;

[0079] In this embodiment, the two sides of the limiting roller 4 that are tangent to the arc plate 43 are both fixedly connected with a scraping layer 44 on the inner surface of the arc plate 43;

[0080] The scraping layer 44 is in contact with the limiting roller 4 on one side thereof, and the scraping layer 44 is made of rubber material;

[0081] In this embodiment, a cylindrical groove 45 is formed in each of the two arc-shaped plates 43;

[0082] The two arc-shaped plates 43 are connected to each other on their opposite sides with a connecting pipe 46, and the connecting pipe 46 is connected to the cylindrical groove 45; the connecting pipe 46 is connected to the external air pump through a conduit; a strip groove 47 is provided on the inner ring surface of the arc-shaped plate 43;

[0083] Specifically, before grinding the outer ring surface of the inner ball cage 11, insert the catheter into the rotating tube 41 and evacuate the air. When the inner ball cage 11 rotates, it will drive the limit roller 4 to rotate, and the rotating limit roller 4 will drive the air hole 42 to rotate. When the inner ball cage 11 generates metal powder during grinding, it will be sucked into the air cavity through the air hole 42. When the metal powder enters the air cavity, it will be sucked out by the catheter, thereby reducing the amount of metal powder diffusion and preventing excessive metal powder from diffusing into the environment, thereby affecting the staff.

[0084] More specifically, since the limiting roller 4 is limited and supported by the arc plate 43, the arc plate 43 can share the pressure on the limiting roller 4, thereby preventing the limiting roller 4 from being subjected to excessive pressure, causing the limiting roller 4 to tilt or even loosen, and preventing the limiting roller 4 from being unable to continue to limit the distance between the grinding belt 36 and the outer ring surface of the inner ball cage 11 after tilting or loosening. At the same time, since a scraping layer 44 is provided on the arc plate 43, when the limiting roller 4 rotates, it will rotate along the scraping layer 44, and the scraping layer 44 can scrape off the metal powder attached to the surface of the limiting roller 4, and the scraped metal powder will be sucked into the air cavity and then discharged. In this process, the metal powder can be prevented from being attached to the limiting roller 4. When the limiting roller 4 with metal powder attached contacts the outer ring surface of the inner ball cage 11, due to the presence of the powder, the distance between the limiting roller 4 and the inner ball cage 11 will be increased, thereby causing the distance between the grinding belt 36 and the inner ball cage 11 to increase, and the outer ring surface of the inner ball cage 11 cannot be polished;

[0085] Furthermore, when a cylindrical groove 45 is opened in the arc plate 43, before the inner ball cage 11 is polished, the catheter is inserted into the connecting pipe 46 and air is blown. When the air hole 42 passes through the strip groove 47, the gas in the cylindrical groove 45 will be blown out through the strip groove 47, and the gas blown out from the strip groove 47 will act on the air hole 42. If the air hole 42 is blocked by metal powder, this part of the metal powder can be blown into the air cavity, thereby avoiding blockage of the air hole 42.

[0086] Embodiment 3: The top of the jaws of the positioning chuck 1 are fixedly connected with an arc-shaped vertical plate 12; in this embodiment, the top end surface of the arc-shaped vertical plate 12 is rotated with evenly arranged balls 13;

[0087] Specifically, since the arc plate 43 is fixedly connected to the claws of the positioning chuck 1, when clamping the inner ball cage 11, the shaft on the inner ball cage 11 is inserted into the multiple arc-shaped vertical plates 12, and the multiple arc-shaped vertical plates 12 can support the inner ball cage 11. Then, the positioning chuck 1 is controlled to be tightened so that the shaft on the inner ball cage 11 can be clamped on the positioning chuck 1 and the arc-shaped vertical plates 12. In this process, since the height of the arc-shaped vertical plates 12 is fixed, and the inner ball cage 11 is supported by the arc-shaped vertical plates 12 before being clamped, it can be ensured that the height of the inner ball cage 11 is relatively uniform each time the inner ball cage 11 is clamped, and at the same time, the clamping area of ​​the shaft on the inner ball cage 11 can be increased, thereby further improving the fixing degree of the inner ball cage 11;

[0088] More specifically, since the evenly arranged balls 13 rotate on the curved vertical plates 12, when the multiple curved vertical plates 12 are tightened together, the balls 13 on the curved vertical plates 12 will rotate along the bottom of the inner ball cage 11, thereby avoiding the inner ball cage 11 from moving when the curved vertical plates 12 are tightened.

[0089] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0090] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vehicle ball cage outer ring polishing device, characterized in that: It comprises a workbench; a positioning chuck (1) is installed on the workbench, and the positioning chuck (1) is used to clamp the inner ball cage (11); The positioning chuck (1) is mounted on a driving mechanism, and the driving mechanism is used to drive the positioning chuck (1) to rotate; Two hydraulic cylinders (2) are installed on the workbench on the right side of the positioning chuck (1), and the hydraulic cylinders (2) are in an extended state in an initial state; A fixing platform (21) is installed on the top of the hydraulic cylinder (2); a vertical plate (22) is installed on the side of the fixing platform (21) away from the positioning chuck (1); an electric telescopic rod (23) is installed on the vertical plate (22); A first slide groove (24) is provided on the top end surface of the fixed platform (21); an L-shaped plate (25) is slidably connected to the upper surface of the fixed platform (21); a first sliding block (26) is fixedly connected to the end surface of one side of the L-shaped plate (25) that is in contact with the fixed platform (21), and the first sliding block (26) slides in the first slide groove (24); The electric telescopic rod (23) extends to one side of the L-shaped plate (25) and is fixedly connected to the L-shaped plate (25); A grinding and polishing assembly is installed on the L-shaped plate (25), and the grinding and polishing assembly is used to grind and polish the outer ring surface of the inner ball cage (11).

2. The vehicle ball cage outer ring polishing device according to claim 1, characterized in that: The grinding and polishing assembly comprises a U-shaped frame (3); The U-shaped frame (3) slides on the surface of the L-shaped plate (25); the opening of the U-shaped frame (3) faces the positioning chuck (1); a second sliding groove (31) is provided on the top end surface of the L-shaped plate (25); A second sliding block (32) is fixedly connected to one end surface of the U-shaped frame (3) that is in contact with the L-shaped plate (25), and the second sliding block (32) slides in the second sliding groove (31); Two guide rods (33) are fixedly connected to one end surface of the U-shaped frame (3) facing the vertical plate (22), and the guide rods (33) pass through the L-shaped plate (25) and are slidably connected to the L-shaped plate (25); Two springs are connected between the U-shaped frame (3) and the L-shaped plate (25), and two guide rods (33) pass through the springs; The inner ring of the U-shaped frame (3) is rotatably mounted with two rollers (34), one of which is located at the opening of the U-shaped frame (3) and the other is close to the guide rod (33); The rotating roller (34) located at the opening of the U-shaped frame (3) partially extends out of the opening of the U-shaped frame (3) and is partially located at the left side of the U-shaped frame (3); A servo motor (35) is installed on the U-shaped frame (3) above the rotating roller (34) close to the guide rod (33), and the servo motor (35) is used to drive the rotating roller (34) to rotate; A grinding belt (36) is connected to the two rotating rollers (34) for joint rotation, and the leftmost side of the grinding belt (36) extends to the left from the opening of the U-shaped frame (3); The upper and lower sides of the rotating roller (34) located at the opening of the U-shaped frame (3) and the top and bottom positions of the U-shaped frame (3) are rotatably connected to the limiting rollers (4); The diameter formed when the grinding belt (36) passes around the rotating roller (34) is the same as the diameter of the limiting roller (4), and the limiting roller (4) is concentrically arranged with the rotating roller (34) at the opening of the U-shaped frame (3).

3. The vehicle ball cage outer ring polishing device according to claim 2, characterized in that: The two limiting rollers (4) are each provided with an air cavity; A rotating tube (41) is rotatably mounted on the end surfaces of the two limiting rollers (4) on the opposite sides, and the rotating tube (41) is connected to an external air pump through a conduit; The outer ring surfaces of the two limiting rollers (4) are provided with evenly arranged air holes (42), and the air holes (42) are used to suck metal powder generated during grinding.

4. The vehicle ball cage outer ring polishing device according to claim 3 is characterized in that: The two limiting rollers (4) are located on a side away from the inner cage (11), and are fixedly connected to arc-shaped plates (43) on the top and bottom end surfaces of the U-shaped frame (3); The arc-shaped plate (43) is tangent to the adjacent limiting roller (4), and the arc-shaped plate (43) is used to provide limiting support for the limiting roller (4).

5. The vehicle ball cage outer ring polishing device according to claim 4, characterized in that: The two sides of the limiting roller (4) that are tangent to the arc plate (43) are both fixedly connected with a scraping layer (44) on the inner circumference surface of the arc plate (43); The scraping layer (44) is in contact with the limiting roller (4) on one side thereof, and the scraping layer (44) is made of rubber material.

6. The vehicle ball cage outer ring polishing device according to claim 5, characterized in that: The two arc-shaped plates (43) are both provided with a cylindrical groove (45); The end surfaces of the two arc-shaped plates (43) on the opposite sides are connected with pipes (46), and the connecting pipes (46) are connected with the columnar grooves (45); the connecting pipes (46) are connected with the external air pump through the conduit; and the inner ring surface of the arc-shaped plate (43) is provided with a strip groove (47).

7. The vehicle ball cage outer ring polishing device according to claim 6, characterized in that: The tops of the claws of the positioning chuck (1) are fixedly connected with arc-shaped vertical plates (12).

8. The vehicle ball cage outer ring polishing device according to claim 7, characterized in that: Evenly arranged balls (13) are rotatably mounted on the top end surface of the arc-shaped vertical plate (12).

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