A ball cage inner punching device

Abstract

This invention relates to the field of stamping machine technology, and discloses a ball cage stamping device, including a base plate, on which a ball cage clamping assembly and a ball cage punching assembly are provided. The ball cage clamping assembly includes a rotatable and translatable expansion sleeve, the right end of which is formed with a positioning stop. The ball cage punching assembly includes a liftable punch rod, the left end of which is fixed with a stamping die head, and a ball cage support positioning seat is provided below the stamping die head. The ball cage is placed on the ball cage support positioning seat. The right end of the punch rod and the stamping die head extend into the ball cage. By extending the stamping die head into the ball cage, a groove is punched downward from the inside of the ball cage. At the same time, the ball cage support positioning seat can support the ball cage during stamping, which can solve the problem of ball cage deformation during punching. By driving the expansion sleeve to rotate through a servo motor, gear pair, and support sleeve, the workpiece can be automatically rotated, and multiple stamping operations can be completed in one clamping, effectively improving stamping efficiency.

Description

Technical Field

[0001] This invention relates to the field of stamping machine technology, and in particular to a stamping device for a ball cage. Background Technology

[0002] A ball cage, as per the instruction manual Figure 10 As shown, the ball cage is a hollow hemisphere with multiple evenly distributed circumferential slots 901 formed on its outer wall. These slots are typically formed by stamping. In existing ball cage stamping devices, the ball cage is placed on a positioning fixture, and a movable stamping die is positioned above it. The slots are punched into the ball cage by lowering the stamping die. Existing ball cage stamping devices have the following shortcomings: First, the stamping die presses the ball cage from top to bottom. Since the inside of the ball cage is hollow and has no support, the ball cage is prone to deformation after stamping. Secondly, after one stamping is completed, the workpiece needs to be manually repositioned for a second stamping. This process of stamping and repositioning requires a lot of clamping time, resulting in low stamping efficiency. Third, the waste material punched out by the stamping die remains inside the ball cage and needs to be manually removed later, increasing production costs. Summary of the Invention

[0003] The purpose of this invention is to provide a ball cage stamping device, which inserts a stamping die into the ball cage to punch a groove from the inside of the ball cage downwards. At the same time, the ball cage support positioning seat can support the ball cage during stamping, thus solving the problem of ball cage deformation during punching. By using a servo motor, gear pair, and support sleeve to drive the expansion sleeve to rotate, the workpiece can be rotated automatically. Multiple stamping operations can be completed in one clamping, which effectively improves stamping efficiency. By using a tapered design with a smaller upper part and a larger lower part for the lower half of the die hole, the material discharge process can be completed automatically, reducing labor costs.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A ball cage internal stamping device includes a base plate fixed to the machine tool of a stamping machine. The base plate is provided with a ball cage clamping assembly and a ball cage punching assembly arranged on the left and right sides. The ball cage punching assembly is located below the lifting pressure head of the stamping machine. The ball cage clamping assembly includes a rotatable and translatable expansion sleeve, and a positioning stop is formed at the right end of the expansion sleeve; The ball cage punching assembly includes a liftable punch rod, with a stamping die head fixed to the left end of the punch rod, and a ball cage support positioning seat provided below the stamping die head; the ball cage is placed on the ball cage support positioning seat; the right end of the punch rod and the stamping die head extend into the ball cage.

[0005] Using the above technical solution, the ball cage to be processed is placed on the ball cage support positioning seat. Then, the expansion sleeve moves to the right, the positioning stop is inserted into one end of the ball cage, and then the expansion sleeve expands to fix the ball cage. The stamping die head moves down to perform stamping work on the ball cage. The expansion sleeve drives the ball cage to rotate, so that stamping work can be performed at different positions of the ball cage.

[0006] The present invention is further configured such that: the expansion sleeve is fixed to the right end of the support sleeve, and the middle part of the support sleeve is rotatably connected to the support base; the support base is fixed to the sliding base, and the sliding base is slidably connected to two guide rails arranged in the action direction, and the guide rails are fixed to the base plate; A push-pull block is fixed to the bottom of the sliding base. The push-pull block is fixed to the piston rod of the first cylinder, and the first cylinder is fixed to the base plate. The left end of the support sleeve is fixed with a worm gear, which meshes with a worm. Both ends of the worm are rotatably connected to the support base through bearings. One end of the worm is connected to a servo motor, which is fixed to the support base. An expansion core is fitted inside the expansion sleeve. The expansion core is fixed to the right end of the push-pull rod. The push-pull rod is inserted into the support sleeve. The left protruding end of the push-pull rod, which passes through the support sleeve, is fixedly connected to the piston rod of the second cylinder through a coupling. The second cylinder is fixed to the left end of the support base.

[0007] Through the above technical solution, the piston rod of the first cylinder retracts, causing the push-pull block to move to the right. The push-pull block causes the sliding base to move to the right. The sliding base causes the support seat to move to the right. The support seat causes the support sleeve to move to the right. The support sleeve causes the expansion sleeve to move to the right. The expansion sleeve moves to the right and the positioning stop is inserted into the left end of the ball cage and presses the ball cage to the right. Then, the second cylinder pulls the push-pull rod to the left through the coupling. The push-pull rod drives the expansion core to move to the left. The expansion core expands the expansion sleeve, and the positioning stop is also expanded, thus fastening the ball cage to the positioning stop. Then, the stamping die head moves down onto the ball cage to perform the first punching. Then, the stamping die head moves up to reset, the servo motor rotates through a certain angle, the servo motor drives the worm gear to rotate, the worm gear drives the worm wheel to rotate, the worm wheel drives the support sleeve to rotate through a certain angle, the support sleeve drives the ball cage to rotate through the expansion sleeve, and then the stamping die head presses down again to complete the second punching operation; similarly, the other stamping operations are completed.

[0008] The invention is further configured such that: the right end of the punch rod is inserted into the lifting seat, and the lifting seat is inserted into the guide groove of the main slide; a pressure block is provided above the main slide, and multiple spring support rods are sleeved on the pressure block; the spring support rods are inserted into and fixed to the bottom of the countersunk hole of the main slide; a compression spring is held between the bottom surface of the countersunk hole and the pressure block, and the compression spring is inserted into the spring support rod; a first nut is screwed to the upper protruding end of the spring support rod through the pressure block; the lifting seat is fixedly connected to the pressure block; The pressure block is located below the lifting pressure head; The main slide is fixed on the support base, which is fixed on the base plate; the ball cage support positioning seat is fixed on the pad, which is fixed on the support base. The ball cage support positioning seat has a right limit support plate on the right side, which is fixedly connected to the main slide. An upper limit plate is fixed on the ball cage support positioning seat, and the upper limit plate is formed with a ball arc inner wall.

[0009] With the above technical solution, when the expansion sleeve moves to the right and is inserted into the ball cage, the ball cage can be tightly attached to the limiting support plate, thereby limiting the rightmost position of the ball cage, while the inner wall of the ball arc can limit the highest position of the ball cage, thereby completing the precise positioning of the ball cage. The lifting pressure head moves downward, causing the pressure block to move downward. The pressure block then moves the lifting seat downward, which in turn moves the punch rod downward. The punch rod then moves the stamping die head downward, thus completing the stamping operation. When the lifting pressure head moves upward and resets, the pressure block automatically moves upward and resets under the action of the compression spring.

[0010] The present invention is further configured such that: the upper end of the ball cage support positioning seat is formed with a ball socket groove that matches the ball cage and a die hole that penetrates the ball socket groove in the vertical direction, and the die hole is located directly below the stamping die head; The upper left end of the ball cage support positioning seat is formed with a chamfer.

[0011] Through the above technical solution, the stamping work can be completed accurately by cooperating with the stamping die head and die hole; By using the ball groove to cooperate with the ball cage, the ball cage can be supported from below when it is being stamped, which can effectively prevent the ball cage from deforming.

[0012] The present invention is further configured such that the lower half of the mold hole is tapered with a smaller upper portion and a larger lower portion; Each of the pad, support base, and base plate is provided with a material discharge through hole, which is located directly below the mold hole.

[0013] The above technical solution features a tapered lower part of the die hole, which facilitates the discharge of waste material punched down from the ball cage.

[0014] The present invention is further configured such that: a punch insertion hole is formed on the lifting seat, and a first keyway is formed on the lower side wall of the punch insertion hole; A second keyway is formed on the lower side wall of the punch, and a flat key is held between the second keyway and the first keyway.

[0015] The above technical solution prevents relative rotation between the lifting seat and the punch rod by using a flat key, thereby ensuring the positional accuracy of the punch rod.

[0016] The present invention is further configured such that: the right end of the punch rod is formed with a support hole and a threaded hole; the support hole is inserted into the adjusting sleeve, and a locking nut is screwed onto the outer wall thread of the adjusting sleeve, and the locking nut presses against the right end of the punch rod; The adjusting sleeve is fixed on the support block located on its right side. The support block is fixedly connected to the lifting seat. A locking screw is sleeved on the support block and screwed into the threaded hole.

[0017] By using the above technical solution, loosening the locking nut and pressing the punch rod to the right at the left end of the punch rod will move the punch rod to the right, or loosening the locking screw and pulling the punch rod to the left end of the punch rod will move the punch rod to the left, thereby adjusting the position of the punch rod. After the position is adjusted, tighten the locking nut and locking screw in sequence to fix the position of the punch rod. The position of the punch is adjustable, which facilitates the fine-tuning of the punching position on the ball cage by the mold.

[0018] The present invention is further configured such that: a large gear is formed on the outer wall of the locking nut, the large gear meshes with a small gear, the small gear is fixed at one end of the step adjusting rod, and the other end of the step adjusting rod is inserted into the second step hole of the support block; The right side wall of the guide groove is formed with an adjustment clearance hole and an "H"-shaped hole; a third screw is screwed into the "H"-shaped hole, and a limit plug is formed at the left end of the third screw. The right side wall of the lifting seat is formed with a limit insertion hole, into which the limit insertion rod can be inserted.

[0019] With the above technical solution, when it is necessary to adjust the position of the punch rod, first turn the third screw, and the third screw moves to the left so that the limit plug rod is inserted into the limit plug hole, thereby fixing the position of the lifting seat, which facilitates adjustment and reduces safety hazards. Then rotate the step adjustment rod. The small gear rotates when the step adjustment rod rotates, which in turn drives the large gear to rotate. The large gear then drives the locking nut to rotate, thus facilitating the tightening and loosening of the locking nut and solving the problem of inconvenient adjustment inside the lifting seat of the locking nut.

[0020] The present invention is further configured such that: a plurality of guide plates are fixed on the outer wall of the lifting seat, and the guide plates press against the inner side wall corresponding to the guide groove; An oil groove is formed on the side of the guide plate facing the inner wall of the guide groove.

[0021] By adding lubricants such as grease to the oil tank, the resistance to the vertical movement of the lifting seat can be reduced.

[0022] The stamping die extends into the ball cage and cuts grooves downwards from the inside of the ball cage. At the same time, the ball cage support positioning seat can support the ball cage during stamping, which can solve the problem of ball cage deformation during stamping. By using a servo motor, gear pair, and support sleeve to drive the expansion sleeve to rotate, the workpiece can be rotated automatically. Multiple stamping operations can be completed in one clamping, which effectively improves stamping efficiency. By using a tapered design with a smaller upper part and a larger lower part for the lower half of the die hole, the material discharge process can be completed automatically, reducing labor costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the ball cage punching assembly of the present invention; Figure 3 This is a schematic diagram of the structure of the ball cage clamping assembly of the present invention; Figure 4 for Figure 1 A magnified view of a specific area (A); Figure 5 for Figure 2 A magnified view of a portion of B; Figure 6 This is a three-dimensional schematic diagram of the ball cage punching assembly of the present invention; Figure 7 This is a schematic diagram of the assembly of the lifting seat and guide plate of the present invention; Figure 8 This is a schematic diagram of the assembly of the punch and stamping die of the present invention; Figure 9 This is a schematic diagram of the expansion sleeve structure of the present invention; Figure 10 This is a schematic diagram of the structure of the ball cage involved in the present invention.

[0024] Attached label: 10, base plate; 20. Ball cage clamping assembly; 201. Expansion sleeve; 2011. Positioning stop; 202. Support sleeve; 203. Support base; 204. Sliding base; 205. Guide rail; 206. Push-pull block; 207. First cylinder; 208. Worm gear; 209. Worm; 210. Expansion core; 211. Push-pull rod; 212. Coupling; 213. Second cylinder; 30. Ball cage punching assembly; 301. Punch rod; 3011. Second keyway; 3012. Support hole; 3013. Threaded hole; 302. Punching die head; 303. Ball cage support positioning seat; 3031. Ball socket groove; 3032. Die hole; 3033. Clearance chamfer; 304. Lifting seat; 3041. Punch rod insertion hole; 3042. First keyway; 3043. Limiting insertion hole; 305. Main slide; 3051. Guide groove; 3052. Countersunk hole; 3053. "H" shaped hole; 3054. Adjustment clearance hole; 306. Pressure block; 307. Spring support rod; 308. Compression spring; 309. First nut; 310. Support base; 311. Pad; 312. Flat key; 313. Adjusting sleeve; 314. Locking nut; 3141. Large gear; 315. Support block; 316. Locking screw; 317. Right limit support plate; 318. Upper limit plate; 3181. Inner wall of spherical arc; 319. Small gear; 320. Step adjustment rod; 321. Guide plate; 3211. Oil groove; 322. Third screw; 3221. Limiting rod; 90. Ball cage; 901. Slotting. Detailed Implementation

[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0026] The following is for reference Figures 1 to 10 The present invention will be described as follows: A ball cage in-pressing device includes a base plate 10 fixed on the machine tool of a press. The base plate 10 is provided with a ball cage clamping assembly 20 and a ball cage punching assembly 30 arranged on the left and right sides. The ball cage punching assembly 30 is arranged below the lifting pressure head of the press. The ball cage clamping assembly 20 includes a rotatable and translatable expansion sleeve 201, and a positioning stop 2011 is formed at the right end of the expansion sleeve 201. The ball cage punching assembly 30 includes a liftable punch 301, with a stamping die 302 fixed to the left end of the punch 301, and a ball cage support positioning seat 303 provided below the stamping die 302; the ball cage 90 is placed on the ball cage support positioning seat 303; the right end of the punch 301 and the stamping die 302 extend into the ball cage 90.

[0027] Using the above technical solution, the ball cage to be processed is placed on the ball cage support positioning seat. Then, the expansion sleeve moves to the right, the positioning stop is inserted into one end of the ball cage, and then the expansion sleeve expands to fix the ball cage. The stamping die head moves down to perform stamping work on the ball cage. The expansion sleeve drives the ball cage to rotate, so that stamping work can be performed at different positions of the ball cage.

[0028] The expansion sleeve 201 is fixed to the right end of the support sleeve 202, and the middle part of the support sleeve 202 is rotatably connected to the support base 203; the support base 203 is fixed to the sliding base 204, and the sliding base 204 is slidably connected to two guide rails 205 arranged in the action direction, and the guide rails 205 are fixed to the base plate 10. A push-pull block 206 is fixed to the bottom of the sliding base 204. The push-pull block 206 is fixed to the piston rod of the first cylinder 207, and the first cylinder 207 is fixed to the base plate 10. The left end of the support sleeve 202 is fixed with a worm gear 208, which meshes with a worm 209. Both ends of the worm 209 are rotatably connected to the support base 203 through bearings. One end of the worm 209 is connected to a servo motor, which is fixed to the support base 203. An expansion core 210 is fitted inside the expansion sleeve 201. The expansion core 210 is fixed to the right end of the push-pull rod 211. The push-pull rod 211 is inserted into the support sleeve 202. The left protruding end of the push-pull rod 211 passes through the support sleeve 202 and is fixedly connected to the piston rod of the second cylinder 213 through the coupling 212. The second cylinder 213 is fixed to the left end of the support seat 203.

[0029] The piston rod of the first cylinder retracts, causing the push-pull block to move to the right. The push-pull block causes the sliding base to move to the right. The sliding base causes the support seat to move to the right. The support seat causes the support sleeve to move to the right. The support sleeve causes the expansion sleeve to move to the right. The expansion sleeve moves to the right and the positioning stop is inserted into the left end of the ball cage and presses the ball cage to the right. Then, the second cylinder pulls the push-pull rod to the left through the coupling. The push-pull rod drives the expansion core to move to the left. The expansion core expands the expansion sleeve, and the positioning stop is also expanded, thus fastening the ball cage to the positioning stop. Then, the stamping die head moves down onto the ball cage to perform the first punching. Then, the stamping die head moves up to reset, the servo motor rotates through a certain angle, the servo motor drives the worm gear to rotate, the worm gear drives the worm wheel to rotate, the worm wheel drives the support sleeve to rotate through a certain angle, the support sleeve drives the ball cage to rotate through the expansion sleeve, and then the stamping die head presses down again to complete the second punching operation; similarly, the other stamping operations are completed.

[0030] The right end of the punch rod 301 is inserted into the lifting seat 304, and the lifting seat 304 is inserted into the guide groove 3051 of the main slide 305. A pressure block 306 is provided above the main slide 305. Multiple spring support rods 307 are sleeved on the pressure block 306. The spring support rods 307 are inserted into and fixed to the bottom of the countersunk hole 3052 of the main slide 305. A compression spring 308 is clamped between the bottom surface of the countersunk hole 3052 and the pressure block 306. The compression spring 308 is inserted into the spring support rod 307. A first nut 309 is screwed to the upper protruding end of the spring support rod 307 through the pressure block 306. The lifting seat 304 is fixedly connected to the pressure block 306. The pressure block 306 is located below the lifting pressure head; The main slide 305 is fixed on the support base 310, and the support base 310 is fixed on the base plate 10; the ball cage support positioning seat 303 is fixed on the pad 311, and the pad 311 is fixed on the support base 310. The ball cage support positioning seat 303 is provided with a right limit support plate 317 on the right side. The right limit support plate 317 is fixedly connected to the main slide seat 305. An upper limit plate 318 is fixed on the ball cage support positioning seat 303. The upper limit plate 318 is formed with a ball arc inner wall 3181.

[0031] When the expansion sleeve moves to the right and is inserted into the ball cage, the ball cage can fit tightly against the limiting support plate, thereby limiting the rightmost position of the ball cage, while the inner wall of the ball arc can limit the highest position of the ball cage, thus completing the precise positioning of the ball cage. The lifting pressure head moves downward, causing the pressure block to move downward. The pressure block then moves the lifting seat downward, which in turn moves the punch rod downward. The punch rod then moves the stamping die head downward, thus completing the stamping operation. When the lifting pressure head moves upward and resets, the pressure block automatically moves upward and resets under the action of the compression spring.

[0032] The upper end of the ball cage support positioning seat 303 is formed with a ball groove 3031 that matches the ball cage 90 and a die hole 3032 that penetrates the ball groove 3031 in the vertical direction. The die hole 3032 is located directly below the stamping die head 302. The upper left end of the ball cage support positioning seat 303 is formed with a clearance chamfer 3033.

[0033] By coordinating the stamping die head and the die hole, the stamping work can be completed precisely; By using the ball groove to cooperate with the ball cage, the ball cage can be supported from below when it is being stamped, which can effectively prevent the ball cage from deforming.

[0034] The lower half of the die hole 3032 is tapered with a smaller upper part and a larger lower part. Each of the pad block 311, the support base 310, and the base plate 10 is provided with a material discharge through hole 101, which is located directly below the die hole 3032.

[0035] The lower part of the die hole is tapered to facilitate the discharge of waste material punched down from the ball cage.

[0036] The lifting seat 304 has a punch insertion hole 3041 formed on it, and a first keyway 3042 is formed on the lower side wall of the punch insertion hole 3041. A second keyway 3011 is formed on the lower side wall of the punch 301, and a flat key 312 is held between the second keyway 3011 and the first keyway 3042.

[0037] The flat key prevents relative rotation between the lifting seat and the punch rod, thus ensuring the positional accuracy of the punch rod.

[0038] The right end of the punch rod 301 is formed with a support hole 3012 and a threaded hole 3013; the support hole 3012 is inserted into the adjusting sleeve 313, and a locking nut 314 is screwed onto the outer wall thread 3131 of the adjusting sleeve 313, and the locking nut 314 presses against the right end of the punch rod 301. The adjusting sleeve 313 is fixed on the support block 315 located on its right side. The support block 315 is fixedly connected to the lifting seat 304. A locking screw 316 is sleeved on the support block 315 and screwed into the threaded hole 3013.

[0039] Loosen the locking nut and press the punch rod to the right at the left end of the punch rod to move the punch rod to the right. Alternatively, loosen the locking screw and pull the punch rod to the left at the left end of the punch rod to move the punch rod to the left. This will adjust the position of the punch rod. After adjusting the position, tighten the locking nut and locking screw in sequence to fix the position of the punch rod. The position of the punch is adjustable, which facilitates the fine-tuning of the punching position on the ball cage by the mold.

[0040] A large gear 3141 is formed on the outer wall of the locking nut 314. The large gear 3141 meshes with a small gear 319. The small gear 319 is fixed to one end of the step adjusting rod 320. The other end of the step adjusting rod 320 is inserted into the second step hole of the support block 315. The right side wall of the guide groove 3051 is formed with an adjustment clearance hole 3054 and an "H"-shaped hole 3053; a third screw 322 is screwed into the "H"-shaped hole 3053, and a limit plug 3221 is formed at the left end of the third screw 322. The right side wall of the lifting seat 304 is formed with a limiting insertion hole 3043, and the limiting insertion rod 3221 can be inserted into the limiting insertion hole 3043.

[0041] When it is necessary to adjust the position of the punch rod, first turn the third screw. The third screw moves to the left so that the limit rod is inserted into the limit hole, thereby fixing the position of the lifting seat, which facilitates adjustment and reduces safety hazards. Then rotate the step adjustment rod. The small gear rotates when the step adjustment rod rotates, which in turn drives the large gear to rotate. The large gear then drives the locking nut to rotate, thus facilitating the tightening and loosening of the locking nut and solving the problem of inconvenient adjustment inside the lifting seat of the locking nut.

[0042] Multiple guide plates 321 are fixed on the outer wall of the lifting seat 304, and the guide plates 321 press against the inner side wall of the guide groove 3051. An oil groove 3211 is formed on the side of the guide plate 321 facing the inner wall of the guide groove 3051.

[0043] Adding grease or other lubricants to the oil tank can reduce the resistance to the up-and-down movement of the lifting seat.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications assumed above should also be considered within the scope of protection of the present invention.

Claims

1. A ball cage internal stamping device, comprising a base plate (10) fixed to the machine tool of a stamping machine, characterized in that: The base plate (10) is provided with a ball cage clamping assembly (20) and a ball cage punching assembly (30) arranged on the left and right sides. The ball cage punching assembly (30) is located below the lifting pressure head of the press. The ball cage clamping assembly (20) includes a rotatable and translatable expansion sleeve (201), and a positioning stop (2011) is formed on the right end of the expansion sleeve (201). The ball cage punching assembly (30) includes a liftable punch (301), a stamping die (302) is fixed to the left end of the punch (301), and a ball cage support positioning seat (303) is provided below the stamping die (302); the ball cage (90) is placed on the ball cage support positioning seat (303); the right end of the punch (301) and the stamping die (302) extend into the ball cage (90); The ball cage support positioning seat (303) has a right limit support plate (317) on the right side. The right limit support plate (317) is fixedly connected to the main slide (305). An upper limit plate (318) is fixed on the ball cage support positioning seat (303). The upper limit plate (318) is formed with a ball arc inner wall (3181). The right end of the punch (301) is formed with a support hole (3012) and a threaded hole (3013); the support hole (3012) is inserted into the adjusting sleeve (313), and a locking nut (314) is screwed onto the outer wall thread (3131) of the adjusting sleeve (313), and the locking nut (314) presses against the right end of the punch (301); The adjusting sleeve (313) is fixed on the support block (315) located on its right side. The support block (315) is fixedly connected to the lifting seat (304). A locking screw (316) is sleeved on the support block (315) and screwed into the threaded hole (3013). A large gear (3141) is formed on the outer wall of the locking nut (314), and a small gear (319) meshes with the large gear (3141). The small gear (319) is fixed to one end of the step adjusting rod (320), and the other end of the step adjusting rod (320) is inserted into the second step hole of the support block (315). The right side wall of the guide groove (3051) is formed with an adjustment clearance hole (3054) and an "H"-shaped hole (3053); a third screw (322) is screwed into the "H"-shaped hole (3053), and a limit plug (3221) is formed on the left end of the third screw (322). The right side wall of the lifting seat (304) is formed with a limiting insertion hole (3043), and the limiting insertion rod (3221) can be inserted into the limiting insertion hole (3043).

2. The ball cage internal stamping device according to claim 1, characterized in that: The expansion sleeve (201) is fixed to the right end of the support sleeve (202), and the middle part of the support sleeve (202) is rotatably connected to the support base (203); the support base (203) is fixed to the sliding base (204), and the sliding base (204) is slidably connected to two guide rails (205) arranged in the action direction, and the guide rails (205) are fixed to the base plate (10); The bottom of the sliding base (204) is fixed with a push-pull block (206), which is fixed on the piston rod of the first cylinder (207). The first cylinder (207) is fixed on the base plate (10). The left end of the support sleeve (202) is fixed with a worm wheel (208), the worm wheel (208) meshes with a worm (209), the two ends of the worm (209) are rotatably connected to the support base (203) through bearings, and one end of the worm (209) is connected to a servo motor, which is fixed to the support base (203). The expansion sleeve (201) is fitted with an expansion core (210), which is fixed to the right end of the push-pull rod (211). The push-pull rod (211) is inserted into the support sleeve (202). The left extension end of the push-pull rod (211) passes through the support sleeve (202) and is fixedly connected to the piston rod of the second cylinder (213) through the coupling (212). The second cylinder (213) is fixed to the left end of the support seat (203).

3. The ball cage internal stamping device according to claim 1, characterized in that: The right end of the punch (301) is inserted into the lifting seat (304), and the lifting seat (304) is inserted into the guide groove (3051) of the main slide (305); a pressure block (306) is provided above the main slide (305), and multiple spring support rods (307) are sleeved on the pressure block (306). The spring support rods (307) are inserted into and fixed at the bottom of the countersunk hole (3052) of the main slide (305). A compression spring (308) is held between the bottom surface of the countersunk hole (3052) and the pressure block (306), and the compression spring (308) is inserted into the spring support rod (307); a first nut (309) is screwed onto the upper protruding end of the spring support rod (306); the lifting seat (304) is fixedly connected to the pressure block (306); The pressure block (306) is located below the lifting pressure head; The main slide (305) is fixed on the support base (310), and the support base (310) is fixed on the base plate (10); the ball cage support positioning seat (303) is fixed on the pad (311), and the pad (311) is fixed on the support base (310).

4. The ball cage internal stamping device according to claim 3, characterized in that: The upper end of the ball cage support positioning seat (303) is formed with a ball socket groove (3031) that matches the ball cage (90) and a die hole (3032) that penetrates the ball socket groove (3031) in the vertical direction. The die hole (3032) is located directly below the stamping die head (302). The upper left end of the ball cage support positioning seat (303) is formed with a clearance chamfer (3033).

5. The ball cage internal stamping device according to claim 4, characterized in that: The lower half of the die hole (3032) is tapered with a smaller upper part and a larger lower part; Each of the pad (311), support base (310) and base plate (10) is provided with a material discharge through hole (101), which is located directly below the mold hole (3032).

6. The ball cage internal stamping device according to claim 3, characterized in that: The lifting seat (304) has a punch insertion hole (3041) formed on it, and a first keyway (3042) is formed on the lower side wall of the punch insertion hole (3041). A second keyway (3011) is formed on the lower side wall of the punch (301), and a flat key (312) is held between the second keyway (3011) and the first keyway (3042).

7. The ball cage internal stamping device according to claim 3, characterized in that: Multiple guide plates (321) are fixed on the outer wall of the lifting seat (304), and the guide plates (321) press against the inner side wall of the guide groove (3051); The guide plate (321) has an oil groove (3211) formed on the inner wall of the guide groove (3051).

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