Ball bearing steel forging device and forging process thereof

Abstract

The invention relates to the field of bearing forging, in particular to a ball bearing steel forging device and a forging technology.The device comprises a base, a first supporting column is fixedly installed on the base, a first lifting block is fixedly installed on the outer wall of the first supporting column, and a first telescopic rod and a third telescopic rod are arranged on the first lifting block; a clamping device is fixedly mounted on a third telescopic rod, a plurality of first rotating blocks in the clamping device are connected with a first traction block, so that a buffing rotating device can be driven to clamp bearing steel by rotating one of the first rotating blocks, and a first circular ring is arranged on a first adjusting part in the buffing rotating device, so that the buffing rotating device can be driven to clamp the bearing steel; the multiple first circular rings adapt to the surface radian of the bearing steel, falling during clamping is prevented, the effect of cleaning and polishing oxide skin on the outer wall of the bearing steel is achieved, and the problem that the oxide skin on the bearing steel is extruded into the bearing steel during forging and pressing, and protrusions and grooves are formed in the surface of the bearing steel is solved.

Description

Technical Field

[0001] The present invention belongs to the field of bearing forging, and specifically relates to a forging device and forging process for ball bearing steel. Background Art

[0002] Forging of ball bearings refers to the process of using forging technology to form the blank of the bearing ring during the manufacturing of ball bearings. Forging is a metal forming process that involves heating a metal blank to a certain temperature and then using pressure to cause plastic deformation to obtain a workpiece with the required shape and size. In the production of ball bearings, the forging link is very crucial, as it not only affects the reliability and lifespan of the bearings but also directly impacts the utilization rate of raw materials and production costs.

[0003] The patent with the publication number CN114178460A discloses a forging process and forging device for roller bearing parts, including a workbench installed above an installation table. Cleaning folding boxes are symmetrically arranged on both sides of the workbench, and the cleaning folding boxes are connected to the installation table by bolts. The cleaning folding boxes penetrate the installation table. A telescopic box is arranged on one side of the cleaning folding box. A first telescopic tube and a second telescopic tube are respectively arranged between the cleaning folding box and the telescopic box. The first telescopic tube is arranged above the second telescopic tube. Both the first telescopic tube and the second telescopic tube are fixedly connected to the cleaning folding box and the telescopic box respectively. A ventilation cavity and a cleaning cavity are respectively arranged inside the telescopic box.

[0004] During the forging process of the above device, the edges of the bearing steel will rapidly oxidize due to extrusion and high temperature, generating oxide scales. If the oxide scales are not cleaned, during the subsequent forging process, they will be extruded into the bearing steel and fuse with it, resulting in convex or concave parts on the forged bearing steel, and the processing effect is poor. Summary of the Invention

[0005] The present invention provides a forging device and forging process for ball bearing steel, which solves the technical problem in the related art that the edges of the bearing steel will rapidly oxidize due to extrusion and high temperature, generating oxide scales. If the oxide scales are not cleaned, during the subsequent forging process, they will be extruded into the bearing steel and fuse with it, resulting in convex or concave parts on the forged bearing steel, and the processing effect is poor.

[0006] The first aspect of the present invention discloses a forging device for ball bearing steel, including a base, on which a first support column is fixedly installed. A top stabilizing block is fixedly installed on the first support column, and a forging table is arranged inside the top stabilizing block. A second telescopic rod and a processing support table are arranged on the base. A first lifting block is fixedly installed on the outer wall of the first support column. A first telescopic rod and a third telescopic rod are arranged on the first lifting block. A clamping device is fixedly installed on the third telescopic rod. A grinding and rotating device is arranged on the clamping device. The clamping device clamps and grinds the bearing steel through the grinding and rotating device; the clamping device includes a first fixed block, a first rotating block and a first pulling block. The first fixed block is symmetrically installed with the first rotating block. A plurality of the first rotating blocks are connected in sequence. The bottom end of the first rotating block is provided with a first pulling block. The first pulling blocks at one end of the first fixed block are connected in sequence. The two first rotating blocks on the first fixed block rotate to clamp the bearing steel; a grinding and rotating device is arranged on the first rotating block. The grinding and rotating device includes a first ring, a first telescopic member, a first adjusting member and a second telescopic member. A first adjusting member is arranged inside the first ring. The first adjusting member is connected with a first telescopic member and a second telescopic member. The first ring adapts to the surface curvature of the bearing steel through the first telescopic member and the second telescopic member to clamp and grind the bearing steel.

[0007] As a further optimized solution of the present invention, the clamping device includes a first fixed block fixedly installed on the third telescopic rod. The first fixed block is symmetrically installed with the first rotating block. The first rotating block is rotatably installed on the first fixed block. The first rotating blocks on both sides of the first fixed block are rotatably installed in sequence. The bottom end of the first rotating block is provided with a first pulling block. The first pulling block is used to connect the two first rotating blocks. A first motor box is fixedly installed at the center of the bottom end of the first fixed block. A first screw rod is threadedly installed inside the first motor box. Second rotating blocks are symmetrically arranged on the first screw rod. The top end of the second rotating block is rotatably installed with the first pulling block. The first screw rod is threadedly installed with the second rotating block. The first screw rod rotates to adjust the distance between the two second rotating blocks.

[0008] As a further optimized solution of the present invention, the skin grinding rotating device includes L-shaped fixing blocks on the symmetric first rotating blocks. The L-shaped fixing blocks are fixedly installed with the first rotating blocks. A first rotating column is rotatably installed on the two L-shaped fixing blocks. A first telescopic member is fixedly installed at the bottom of the first rotating column. A first adjusting member is rotatably installed on the first telescopic member. A first ring is fixedly installed on the first adjusting member. A second telescopic member is arranged on the first adjusting member. A plurality of the first adjusting members are connected through the second telescopic member. A first belt is arranged on the first rotating column. A rotating member is arranged on the first rotating block. The rotating member is connected with the first rotating column through the first belt. A transmission device is arranged on the rotating member. The transmission device is used to drive a plurality of the skin grinding rotating devices to rotate for rotating and grinding bearing steel.

[0009] As a further optimized solution of the present invention, the rotating member includes a third gear rotatably installed on the first rotating block. A fourth rotating column is fixedly installed on the third gear. A third rotating column is arranged on the fourth rotating column. The third rotating column is connected with the first rotating column through the first belt. An outer wall of the fourth rotating column, which is connected with the first fixed block and the first rotating block, is fixedly installed with a fifth gear. The fifth gear is connected with the transmission device.

[0010] As a further optimized solution of the present invention, the first telescopic member includes a first U-shaped block fixedly installed at the bottom of the first rotating column. A third rotating block is rotatably installed on the first U-shaped block. A fourth telescopic rod is fixedly installed on the third rotating block. A second U-shaped block is fixedly installed at the bottom of the fourth telescopic rod. The second U-shaped block is connected with the first adjusting member. A first spring is arranged on the fourth telescopic rod.

[0011] As a further optimized solution of the present invention, the first adjusting member includes a first rotating rod rotatably installed on the second U-shaped block. Fifth fixing blocks are fixedly installed at both ends of the first rotating rod. A cross-shaped fixing plate is fixedly installed on the fifth fixing blocks. The first rotating rod is symmetrically installed with respect to the cross-shaped fixing plate. The first rotating rod at the bottom is connected with the second telescopic member.

[0012] As a further optimized solution of the present invention, the second telescopic member includes a third U-shaped block rotatably installed on the first rotating rod. A fifth telescopic rod is fixedly installed on the third U-shaped block. A fourth U-shaped block is fixedly installed at the bottom of the fifth telescopic rod. A second spring is arranged on the fifth telescopic rod.

[0013] As a further optimization solution of the present invention, the transmission device includes a third fixed block fixedly installed on the first rotating block. A second rotating column is rotatably installed inside the third fixed block. One end of the second rotating column is fixedly installed with a first gear, and the first gear meshes with the third gear. The other end of the second rotating column is fixedly installed with a universal joint, and a sixth telescopic rod is fixedly installed on the universal joint. A fourth fixed block is fixedly installed on the adjacent first rotating block, and the fourth fixed block is rotatably installed with the sixth telescopic rod. A second gear is fixedly installed on the sixth telescopic rod, and the second gear meshes with the third gear on the adjacent first rotating block. Transmission devices are provided on multiple first rotating blocks. A sixth gear and a second motor are provided on the first fixed block. The sixth gears are symmetrically installed on the first fixed block, and the second motor is fixedly installed at the center of the first fixed block. A second belt is provided on the outer walls of the sixth gear and the second motor, and the sixth gear meshes with the fifth gear.

[0014] As a further optimization solution of the present invention, the grinding and rotating device provided on the two first rotating blocks at the center of one side of the first fixed block grinds the bearing steel, and the diameters of the third gears on the two first rotating blocks at the center of one side of the first fixed block are smaller than the diameters of the remaining third gears on one side of the first fixed block.

[0015] The second aspect of the present invention discloses a forging process for ball bearing steel, including the following steps: Step 1: Heat the bearing steel ingot to 900 ± 5 °C and keep it warm for two hours. Then place the bearing steel on the processing support table for forging. Start the forging table, and the forging table moves closer to the processing support table to forge the bearing steel placed on the processing support table. The initial forging temperature is 900 °C, and the final forging temperature is 800 °C. Step 2: After multiple forging operations on the forging table, a lot of scale appears on the outer wall of the bearing steel. Start the first telescopic rod to drive the first lifting block to rise, so that the third telescopic rod is in the central position of the bearing steel. Then start the third telescopic rod to drive the clamping device and the grinding and rotating device to move towards the bearing steel at the top of the processing support table. Start the first motor box to drive the two first pulling blocks to approach, and then multiple first pulling blocks move closer to the center under the action of the first rotating block. The grinding and rotating device provided on the first rotating block clamps the bearing steel, and multiple first rings are provided on the grinding and rotating device to adapt to the surface of the bearing steel and prevent the bearing steel from slipping during clamping. Step 3: Drive the first transmission member to rotate with a motor. The first transmission member drives the rotating member to rotate. The diameters of the third gears on the two first rotating blocks at the center of one side of the first fixing block are smaller than the diameters of the third gears on the first rotating blocks at the center of the other sides of the first fixing block. Therefore, the third gears with smaller diameters rotate faster, and the slower-rotating abrasive skin rotating device rotates the clamped bearing steel, while the faster-rotating abrasive skin rotating device grinds the scale on the surface of the bearing steel, improving the processing quality of the bearing steel.

[0016] The beneficial effects of the present invention are as follows: For the forging device and forging process of a ball bearing steel of the present invention, through the connection of multiple first rotating blocks and first pulling blocks inside the clamping device, rotating one of the first rotating blocks can drive the abrasive skin rotating device to clamp the bearing steel. By setting first circular rings on the first adjusting members inside the abrasive skin rotating device, multiple first circular rings adapt to the surface curvature of the bearing steel to prevent it from falling off during clamping. Third gears with different diameters drive the first circular rings to rotate at different speeds, thereby achieving the effect of cleaning and grinding the scale on the outer wall of the bearing steel, preventing the scale on the bearing steel from being squeezed into the interior of the bearing steel during forging, resulting in problems such as protrusions and grooves on the surface of the bearing steel. Description of the Drawings

[0017] Figure 1 is the external shape diagram of the overall device of the present invention; Figure 2 is the transmission diagram of the overall device of the present invention; Figure 3 is the position diagram of the overall device of the present invention; Figure 4 is the connection diagram of the abrasive skin rotating device and the transmission device of the present invention; Figure 5 is the structural diagram of the clamping device of the present invention; Figure 6 is the internal structural diagram of the abrasive skin rotating device of the present invention; Figure 7 is Figure 6 the enlarged view at A in Figure 8 is the connection diagram of the transmission device of the present invention.

[0018] In the figure: 1. Base; 11. First support column; 12. Top stabilizing block; 13. First lifting block; 131. Third telescopic rod; 14. First telescopic rod; 15. Second telescopic rod; 16. Processing support table; 17. Forging table; 2. Clamping device; 21. First fixing block; 22. First rotating block; 23. First pulling block; 24. Second rotating block; 25. First screw rod; 26. First motor box; 3. Skin grinding rotating device; 31. L-shaped fixing block; 32. First rotating column; 33. First belt; 34. Rotating part; 341. Third rotating column; 342. Fourth rotating column; 343. Third gear; 344. Fifth gear; 35. First ring; 36. First telescopic part; 361. First U-shaped block; 362. Third rotating block; 363. Fourth telescopic rod; 364. First spring; 365. Second U-shaped block; 37. First adjusting part; 371. Cross-shaped fixing plate; 372. Fifth fixing block; 373. First rotating rod; 38. Second telescopic part; 381. Third U-shaped block; 382. Fifth telescopic rod; 383. Second spring; 384. Fourth U-shaped block; 4. Transmission device; 41. First gear; 42. Third fixing block; 43. Second rotating column; 44. Universal joint; 45. Sixth telescopic rod; 46. Fourth fixing block; 47. Second gear; 48. First transmission part; 481. Sixth gear; 482. Second belt; 483. Second motor. Detailed implementation manners

[0019] Now, the subject matter described herein will be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0020] As Figures 1 to 3 shown, a forging device for ball bearing steel according to an embodiment of the present invention includes a base 1. A first support column 11 is fixedly installed on the base 1. A top stabilizing block 12 is fixedly installed on the first support column 11. A forging table 17 is arranged inside the top stabilizing block 12. A second telescopic rod 15 and a processing support table 16 are arranged on the base 1. A first lifting block 13 is fixedly installed on the outer wall of the first support column 11. A first telescopic rod 14 and a third telescopic rod 131 are arranged on the first lifting block 13. A clamping device 2 is fixedly installed on the third telescopic rod 131. As Figures 4 to 5As shown, the clamping device 2 is provided with a dermabrasion rotating device 3, and the clamping device 2 clamps and grinds the bearing steel through the dermabrasion rotating device 3; the clamping device 2 comprises a first fixed block 21, a first rotating block 22 and a first pulling block 23, the first fixed block 21 is symmetrically mounted with the first rotating blocks 22, a plurality of the first rotating blocks 22 are sequentially connected, a first pulling block 23 is provided at the bottom end of the first rotating block 22, the first pulling block 23 at one end of the first fixed block 21 is sequentially connected, and the two first rotating blocks 22 on the first fixed block 21 rotate to clamp the bearing steel; the first rotating block 22 is provided with a dermabrasion rotating device 3; like Figures 6 to 8 As shown, the dermabrasion rotating device 3 includes a first circular ring 35, a first telescopic member 36, a first adjusting member 37 and a second telescopic member 38. The first circular ring 35 is provided with a first adjusting member 37 inside, and the first adjusting member 37 is connected to the first telescopic member 36 and the second telescopic member 38. The first circular ring 35 adapts to the surface curvature of the bearing steel through the first telescopic member 36 and the second telescopic member 38 to clamp and grind the bearing steel.

[0021] It should be noted that when the bearing steel is placed on the processing support table 16 for grinding, the forging table 17 is started to forge the bearing steel. After forging, when more oxide scale appears on the outer wall of the bearing steel, the first telescopic rod 14 and the third telescopic rod 131 are started to drive the clamping device 2 and the grinding rotating device 3 to clamp the bearing steel, and then the two first rotating blocks 22 on the first fixed block 21 are driven by the motor to rotate, so that the first rotating blocks 22 are brought closer to each other, and the first rotating blocks 22 drive the grinding rotating device 3 to move closer to each other, thereby clamping the bearing steel, and the grinding rotating device 3 is provided with a plurality of first rings 35 and first telescopic members 36 and a first adjusting member 37 and a second telescopic member 38, which adapt to the surface of the bearing steel and clamp the bearing steel after forging, and the first rotating block 22 is also provided with a transmission device 4, which is connected to the grinding rotating device 3. The transmission device 4 is driven by a motor to drive the grinding rotating device 3 to rotate, which can achieve the effect of rotating and grinding the bearing steel, prevent the oxide scale on the outside of the bearing steel from being squeezed into the inside of the bearing steel during forging, causing the problem of protrusions and grooves on the surface of the bearing steel, and improve the forging effect of the bearing steel.

[0022] like Figures 4 to 5As shown, the clamping device 2 includes a first fixing block 21 fixedly installed on the third telescopic rod 131. Symmetrically installed on the first fixing block 21 are first rotating blocks 22 which are rotatably installed on the first fixing block 21. The first rotating blocks 22 on both sides of the first fixing block 21 are sequentially rotatably installed. The bottom end of the first rotating block 22 is provided with a first pulling block 23 which is used to connect the two first rotating blocks 22. The center of the bottom end of the first fixing block 21 is fixedly installed with a first motor box 26. Inside the first motor box 26, a first screw rod 25 is installed in a threaded manner. Symmetrically arranged on the first screw rod 25 are second rotating blocks 24. The top end of the second rotating block 24 is rotatably installed with the first pulling block 23. The first screw rod 25 is threadedly installed with the second rotating block 24. The first screw rod 25 rotates to adjust the distance between the two second rotating blocks 24.

[0023] It should be noted that the first fixing block 21 is provided with a first motor box 26, and the first motor box 26 is provided with a first screw rod 25. When the first motor box 26 rotates, it can drive the two first pulling blocks 23 to approach each other, thereby driving the multiple first pulling blocks 23 to move through the multiple first rotating blocks 22, and then the multiple second rotating blocks 24 can be made to approach each other to achieve the clamping effect on the bearing steel.

[0024] As Figures 6 to 8 As shown, the grinding and rotating device 3 includes L-shaped fixing blocks 31 symmetrically arranged on the first rotating blocks 22. The L-shaped fixing blocks 31 are fixedly installed with the first rotating blocks 22. A first rotating column 32 is rotatably installed on the two L-shaped fixing blocks 31. The bottom of the first rotating column 32 is fixedly installed with a first telescopic member 36. A first adjusting member 37 is rotatably installed on the first telescopic member 36. A first ring 35 is fixedly installed on the first adjusting member 37. A second telescopic member 38 is arranged on the first adjusting member 37. The multiple first adjusting members 37 are connected through the second telescopic member 38. A first belt 33 is arranged on the first rotating column 32. A rotating member 34 is arranged on the first rotating block 22. The rotating member 34 is connected with the first rotating column 32 through the first belt 33. A transmission device 4 is arranged on the rotating member 34. The transmission device 4 is used to drive the multiple grinding and rotating devices 3 to rotate for rotating and grinding the bearing steel.

[0025] It should be noted that the rotation of the rotating member 34 can drive the rotation of the first belt 33 and the first rotating column 32. The bottom of the first rotating column 32 is connected with a first telescopic member 36, a first adjusting member 37 and a second telescopic member 38, thereby driving the rotation of the first ring 35 on the outer wall of the first adjusting member 37. The rotation of the first ring 35 can drive the rotation of the bearing steel and can polish the bearing steel at the same time. Multiple first rings 35 can adapt to the surface of the bearing steel, prevent the bearing steel from slipping when clamped, and improve safety.

[0026] As Figure 4 and Figure 6 and Figure 8 As shown, the rotating member 34 includes a third gear 343 rotatably mounted on the first rotating block 22. A fourth rotating column 342 is fixedly mounted on the third gear 343. A third rotating column 341 is provided on the fourth rotating column 342. The third rotating column 341 is connected to the first rotating column 32 through the first belt 33. An outer wall of the fourth rotating column 342 on the first rotating block 22 connected to the first fixed block 21 is fixedly mounted with a fifth gear 344. The fifth gear 344 is connected to the transmission device 4.

[0027] It should be noted that the rotation of the fifth gear 344 rotates the fourth rotating column 342, and the fourth rotating column 342 is connected to the transmission device 4, thereby driving the rotation of multiple grinding and polishing devices 3 on multiple first rotating blocks 22. A third rotating column 341 and a first belt 33 are provided on the fourth rotating column 342, thereby driving the rotation of the first rotating column 32 and the first ring 35, and realizing the rotation and polishing effects on the bearing steel.

[0028] As Figure 7 As shown, the first telescopic member 36 includes a first U-shaped block 361 fixedly mounted at the bottom of the first rotating column 32. A third rotating block 362 is rotatably mounted on the first U-shaped block 361. A fourth telescopic rod 363 is fixedly mounted on the third rotating block 362. The bottom of the fourth telescopic rod 363 is fixedly mounted with a second U-shaped block 365. The second U-shaped block 365 is connected to the first adjusting member 37. A first spring 364 is provided on the fourth telescopic rod 363.

[0029] It should be noted that when the centers of multiple first rings 35 between two first belts 33 are not concentric due to adapting to the curvature of the surface of the bearing steel, the fourth telescopic rod 363 is in an extended state, so that the first ring 35 can move away from the first rotating block 22 and move closer to the first rotating block 22, thereby realizing the adaptation of the first ring 35 to the curvature of the surface of the bearing steel. The first spring 364 makes the fourth telescopic rod 363 keep the first rings 35 at the top and bottom of the first rotating block 22 concentric in the normal state.

[0030] As Figure 7 shown, the first adjusting member 37 includes a first rotating rod 373 rotatably mounted on the second U-shaped block 365. Both ends of the first rotating rod 373 are fixedly provided with fifth fixing blocks 372. A cross-shaped fixing plate 371 is fixedly mounted on the fifth fixing blocks 372. The first rotating rod 373 is symmetrically mounted with respect to the cross-shaped fixing plate 371. The bottom first rotating rod 373 is connected to the second telescopic member 38.

[0031] It should be noted that the first adjusting member 37 is a connecting member connecting the first telescopic member 36 and the second telescopic member 38. Therefore, the first adjusting member 37 can adapt to the movement of the first ring 35 in any direction, so as to improve the adaptability of the first ring 35 to the curvature of the bearing steel surface. And a plurality of first adjusting members 37 are connected to each other through the second telescopic member 38. The function of the second telescopic member 38 is the same as that of the first telescopic member 36, which can enable the first ring 35 to drive the first adjusting member 37 to adapt to the curvature of the bearing steel surface when clamping the bearing steel.

[0032] As Figure 7 shown, the second telescopic member 38 includes a third U-shaped block 381 rotatably mounted on the first rotating rod 373. A fifth telescopic rod 382 is fixedly mounted on the third U-shaped block 381. A fourth U-shaped block 384 is fixedly mounted at the bottom of the fifth telescopic rod 382. A second spring 383 is provided on the fifth telescopic rod 382.

[0033] It should be noted that a plurality of the first rings 35 in the middle of the first rotating block 22 are connected to each other through the second telescopic member 38, so that the first ring 35 can adapt to the curvature of the bearing steel surface when clamping the bearing steel, thereby preventing the problem of the first ring 35 slipping when clamping the bearing steel and improving the safety of clamping.

[0034] As Figure 4 and Figure 8As shown, the transmission device 4 includes a third fixed block 42 fixedly installed on the first rotating block 22. A second rotating column 43 is rotatably installed inside the third fixed block 42. One end of the second rotating column 43 is fixedly installed with a first gear 41, and the first gear 41 meshes with the third gear 343. The other end of the second rotating column 43 is fixedly installed with a universal joint 44. A sixth telescopic rod 45 is fixedly installed on the universal joint 44. A fourth fixed block 46 is fixedly installed on the adjacent first rotating block 22, and the fourth fixed block 46 is rotatably installed with the sixth telescopic rod 45. A second gear 47 is fixedly installed on the sixth telescopic rod 45, and the second gear 47 meshes with the third gear 343 on the adjacent first rotating block 22. The transmission device 4 is provided on multiple first rotating blocks 22. A sixth gear 481 and a second motor 483 are provided on the first fixed block 21. The sixth gear 481 is symmetrically installed on the first fixed block 21, and the second motor 483 is fixedly installed at the center of the first fixed block 21. A second belt 482 is provided on the outer walls of the sixth gear 481 and the second motor 483, and the sixth gear 481 meshes with the fifth gear 344.

[0035] It should be noted that when the second motor 483 is started, the second motor 483 causes the second belt 482 to drive the sixth gear 481 to rotate. Since the sixth gear 481 meshes with the fifth gear 344, multiple grinding and rotating devices 3 are driven to rotate. When the grinding and rotating device 3 rotates, it can drive the first ring 35 to clamp the bearing steel and adjust the clamping position of the bearing steel. At the same time, it can grind the bearing steel to prevent the bearing steel from being extruded into the interior of the bearing steel during forging due to the scale, resulting in problems such as protrusions and grooves. The transmission device 4 is provided with a universal joint 44, which can adapt to the rotation angle of the first rotating block 22, and the sixth telescopic rod 45 can adjust the distance between two adjacent first rotating blocks 22 to achieve the purpose of driving the grinding and rotating device 3 to rotate.

[0036] As Figure 4 shown, the grinding and rotating devices 3 provided on the two first rotating blocks 22 at the center of one side of the first fixed block 21 grind the bearing steel. The diameters of the third gears 343 on the two first rotating blocks 22 at the center of one side of the first fixed block 21 are smaller than the diameters of the other third gears 343 on one side of the first fixed block 21.

[0037] It should be noted that the skin-grinding rotating devices 3 arranged on the two first rotating blocks 22 at the center of one side of the first fixed block 21 are used to grind the bearing steel. The diameter of the third gears 343 on the two first rotating blocks 22 at the center of one side of the first fixed block 21 is smaller than the diameter of the remaining third gears 343 on one side of the first fixed block 21, so that the two skin-grinding rotating devices 3 at the center of one side of the first fixed block 21 can rotate at a faster speed to grind the outer wall of the bearing steel, thereby cleaning the oxide scale and improving the processing accuracy of the bearing steel.

[0038] A ball bearing steel forging process, the method adopts the ball bearing steel forging device described above, and comprises the following steps: Step 1: Heat the bearing steel ingot to 900±5°C and keep it warm for two hours, then place the bearing steel on the processing support table 16 for forging, start the forging table 17, and move the forging table 17 toward the processing support table 16 to forge the bearing steel placed on the processing support table 16. The initial forging temperature is 900°C and the final forging temperature is 800°C. Step 2: After the forging table 17 is forged for many times, a lot of oxide scale appears on the outer wall of the bearing steel. The first telescopic rod 14 is started to drive the first lifting block 13 to rise, so that the third telescopic rod 131 is at the center of the bearing steel. Then, the third telescopic rod 131 is started to drive the clamping device 2 and the grinding rotating device 3 to move toward the bearing steel at the top of the processing support table 16. The first motor box 26 is started to drive the two first pulling blocks 23 to approach. Then, the multiple first pulling blocks 23 move toward the center under the action of the first rotating block 22. The grinding rotating device 3 provided on the first rotating block 22 clamps the bearing steel, and the grinding rotating device 3 is provided with multiple first rings 35 to adapt to the surface of the bearing steel to prevent the bearing steel from slipping when clamped. Step three, use a motor to drive the first transmission member 48 to rotate, and the first transmission member 48 drives the rotating member 34 to rotate, and the diameter of the third gear 343 on the two first rotating blocks 22 at the center of one side of the first fixed block 21 is smaller than the diameter of the third gear 343 on the other first rotating blocks 22 at the center of one side of the first fixed block 21. Therefore, the third gear 343 with a smaller diameter has a faster rotation speed. The slower rotation speed of the grinding rotation device 3 rotates the clamped bearing steel, and the faster rotation speed of the grinding rotation device 3 grinds the oxide scale on the surface of the bearing steel to improve the processing quality of the bearing steel.

[0039] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A forging device for ball bearing steel, comprising a base (1), a first support column (11) fixedly installed on the base (1), a top stabilizing block (12) fixedly installed on the first support column (11), a forging table (17) arranged inside the top stabilizing block (12), a second telescopic rod (15) and a processing support table (16) arranged on the base (1), a first lifting block (13) fixedly installed on the outer wall of the first support column (11), a first telescopic rod (14) and a third telescopic rod (131) arranged on the first lifting block (13), characterized in that: A clamping device (2) is fixedly installed on the third telescopic rod (131). A skin grinding rotating device (3) is arranged on the clamping device (2). The clamping device (2) clamps and grinds bearing steel through the skin grinding rotating device (3). The clamping device (2) includes a first fixing block (21), a first rotating block (22) and a first pulling block (23). The first rotating blocks (22) are symmetrically installed on the first fixing block (21). A plurality of the first rotating blocks (22) are connected in sequence. The bottom end of the first rotating block (22) is provided with a first pulling block (23). The first pulling blocks (23) at one end of the first fixing block (21) are connected in sequence. The two first rotating blocks (22) on the first fixing block (21) rotate to clamp the bearing steel. The skin grinding rotating device (3) is arranged on the first rotating block (22). The skin grinding rotating device (3) includes a first ring (35), a first telescopic member (36), a first adjusting member (37) and a second telescopic member (38). The first adjusting member (37) is arranged inside the first ring (35). The first adjusting member (37) is connected with the first telescopic member (36) and the second telescopic member (38). The first ring (35) adapts to the surface curvature of the bearing steel through the first telescopic member (36) and the second telescopic member (38) to clamp and grind the bearing steel.

2. The forging device for ball bearing steel according to claim 1, characterized in that: The clamping device (2) includes a first fixing block (21) fixedly installed on the third telescopic rod (131). The first rotating blocks (22) are symmetrically installed on the first fixing block (21). The first rotating blocks (22) are rotatably installed on the first fixing block (21). The first rotating blocks (22) on both sides of the first fixing block (21) are rotatably installed in sequence. The bottom end of the first rotating block (22) is provided with a first pulling block (23). The first pulling block (23) is used to connect the two first rotating blocks (22). A first motor box (26) is fixedly installed at the center of the bottom end of the first fixing block (21). A first screw rod (25) is installed inside the first motor box (26) in a threaded manner. Second rotating blocks (24) are symmetrically arranged on the first screw rod (25). The top end of the second rotating block (24) is rotatably installed with the first pulling block (23). The first screw rod (25) is installed in a threaded manner with the second rotating block (24). The first screw rod (25) rotates to adjust the distance between the two second rotating blocks (24).

3. The forging device for ball bearing steel according to claim 2, wherein: The skin grinding rotating device (3) includes an L-shaped fixing block (31) on the symmetric first rotating block (22). The L-shaped fixing block (31) is fixedly installed with the first rotating block (22). A first rotating column (32) is rotatably installed on the two L-shaped fixing blocks (31). A first telescopic member (36) is fixedly installed at the bottom of the first rotating column (32). A first adjusting member (37) is rotatably installed on the first telescopic member (36). A first ring (35) is fixedly installed on the first adjusting member (37). A second telescopic member (38) is arranged on the first adjusting member (37). The plurality of first adjusting members (37) are connected by the second telescopic member (38). A first belt (33) is arranged on the first rotating column (32). A rotating member (34) is arranged on the first rotating block (22). The rotating member (34) is connected to the first rotating column (32) by the first belt (33). A transmission device (4) is arranged on the rotating member (34). The transmission device (4) is used to drive the plurality of skin grinding rotating devices (3) to rotate for rotary grinding of bearing steel.

4. A forging device for ball bearing steel according to claim 3, characterized in that: The rotating member (34) includes a third gear (343) rotatably installed on the first rotating block (22). A fourth rotating column (342) is fixedly installed on the third gear (343). A third rotating column (341) is arranged on the fourth rotating column (342). The third rotating column (341) is connected to the first rotating column (32) by the first belt (33). An outer wall of the fourth rotating column (342) connecting the first rotating block (22) to the first fixing block (21) is fixedly installed with a fifth gear (344). The fifth gear (344) is connected to the transmission device (4).

5. A forging device for ball bearing steel according to claim 4, characterized in that: The first telescopic member (36) includes a first U-shaped block (361) fixedly installed at the bottom of the first rotating column (32). A third rotating block (362) is rotatably installed on the first U-shaped block (361). A fourth telescopic rod (363) is fixedly installed on the third rotating block (362). A second U-shaped block (365) is fixedly installed at the bottom of the fourth telescopic rod (363). The second U-shaped block (365) is connected to the first adjusting member (37). A first spring (364) is arranged on the fourth telescopic rod (363).

6. The forging device for ball bearing steel according to claim 5, characterized in that: The first adjusting member (37) includes a first rotating rod (373) rotatably installed on the second U-shaped block (365). Fifth fixing blocks (372) are fixedly installed at both ends of the first rotating rod (373). A cross-shaped fixing plate (371) is fixedly installed on the fifth fixing blocks (372). The first rotating rod (373) is symmetrically installed with respect to the cross-shaped fixing plate (371). The first rotating rod (373) at the bottom is connected to the second telescopic member (38).

7. A forging device for ball bearing steel according to claim 6, characterized in that: The second telescopic member (38) includes a third U-shaped block (381) rotatably mounted on the first rotating rod (373). A fifth telescopic rod (382) is fixedly mounted on the third U-shaped block (381). A fourth U-shaped block (384) is fixedly mounted at the bottom of the fifth telescopic rod (382). A second spring (383) is arranged on the fifth telescopic rod (382).

8. A forging device for ball bearing steel according to claim 7, characterized in that: The transmission device (4) includes a third fixed block (42) fixedly mounted on the first rotating block (22). A second rotating column (43) is rotatably mounted inside the third fixed block (42). A first gear (41) is fixedly mounted at one end of the second rotating column (43). The first gear (41) meshes with the third gear (343). A universal joint (44) is fixedly mounted at the other end of the second rotating column (43). A sixth telescopic rod (45) is fixedly mounted on the universal joint (44). A fourth fixed block (46) is fixedly mounted on an adjacent first rotating block (22). The fourth fixed block (46) is rotatably mounted with the sixth telescopic rod (45). A second gear (47) is fixedly mounted on the sixth telescopic rod (45). The second gear (47) meshes with the third gear (343) on an adjacent first rotating block (22). The transmission device (4) is arranged on multiple first rotating blocks (22). A sixth gear (481) and a second motor (483) are arranged on the first fixed block (21). The sixth gear (481) is symmetrically mounted on the first fixed block (21). The second motor (483) is fixedly mounted at the center of the first fixed block (21). A second belt (482) is arranged on the outer walls of the sixth gear (481) and the second motor (483). The sixth gear (481) meshes with the fifth gear (344).

9. The forging device for ball bearing steel according to claim 8, characterized in that: The grinding and rotating device (3) arranged on two of the first rotating blocks (22) at the center of one side of the first fixed block (21) grinds the bearing steel. The diameter of the third gear (343) on two of the first rotating blocks (22) at the center of one side of the first fixed block (21) is smaller than the diameter of the remaining third gears (343) on one side of the first fixed block (21).

10. A forging process of the ball bearing steel forging device as described in claim 9, characterized in that: It includes the following steps: Step 1: Heat the bearing steel ingot to 900 ± 5 °C and keep it warm for two hours. Then place the bearing steel on the processing support table (16) for forging. Start the forging table (17). The forging table (17) moves closer to the processing support table (16) to forge the bearing steel placed on the processing support table (16). The initial forging temperature is 900 °C, and the final forging temperature is 800 °C. Step 2: After multiple forging operations on the forging table (17), a lot of scale appears on the outer wall of the bearing steel. Start the first telescopic rod (14) to drive the first lifting block (13) to rise, so that the third telescopic rod (131) is at the center position of the bearing steel. Then start the third telescopic rod (131) to drive the clamping device (2) and the skin grinding rotating device (3) to move towards the bearing steel at the top of the processing support table (16). Start the first motor box (26) to drive the two first pulling blocks (23) closer. Then, the multiple first pulling blocks (23) move towards the center under the action of the first rotating block (22). The skin grinding rotating device (3) arranged on the first rotating block (22) clamps the bearing steel. A plurality of first rings (35) are arranged on the skin grinding rotating device (3) to adapt to the surface of the bearing steel and prevent the bearing steel from slipping when being clamped. Step 3: Use a motor to drive the first transmission member (48) to rotate. The first transmission member (48) drives the rotating member (34) to rotate. The diameter of the third gear (343) on the two first rotating blocks (22) at the center of one side of the first fixed block (21) is smaller than the diameter of the third gear (343) on the first rotating blocks (22) at the center of the other sides of the first fixed block (21). Therefore, the third gear (343) with a smaller diameter rotates faster, and the slower-rotating skin grinding rotating device (3) rotates the clamped bearing steel, while the faster-rotating skin grinding rotating device (3) grinds the scale on the surface of the bearing steel to improve the processing quality of the bearing steel.

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