A blanking device for machining hexagonal head bolt bodies

Abstract

This invention discloses a blanking device for machining hexagonal head bolts, relating to the field of bolt processing equipment. The blanking device for machining hexagonal head bolts includes a machining table, a support frame fixedly connected to the lower surface of the machining table, mounting grooves evenly distributed in a ring shape in the middle of the upper surface of the machining table, a through hole in the center of the upper surface of the machining table, and a disc fixedly connected to the lower surface of the machining table. A clamping mechanism for stably holding the hexagonal head bolt body is provided on the lower surface of the machining table; an auxiliary mechanism for automatically blanking the hexagonal head bolt body is provided below the disc. Simultaneously with blanking, the hexagonal head bolt to be processed is placed between three first clamping blocks, and then a telescopic rod extends to clamp the hexagonal head bolt, shortening the downtime in the entire processing process and enabling automatic loading while blanking, thus improving processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of bolt processing equipment, and in particular to a blanking device for processing hexagonal head bolt bodies. Background Technology

[0002] The manufacture of hex bolts typically uses high-strength alloy steel or stainless steel, including round steel materials with diameters and lengths conforming to specifications. The raw materials are formed using a cold heading machine, pressing the round steel material into the basic shape of the bolt through a mold, including the threaded part and the internal hex head part. The cold-headed bolts are then machined, including machining the threaded part and the internal hex head part, and then heat-treated, including quenching and tempering processes, to improve their hardness and strength, ensuring that the bolt has sufficient mechanical properties.

[0003] Before machining the hexagonal head portion, the hexagonal head bolt to be machined needs to be clamped and positioned. After machining, it needs to be unloaded. The existing unloading device for machining the hexagonal head bolt body still has the following defects:

[0004] When using a three-jaw chuck for clamping, after machining is completed, the machined bolts must be removed, and then the bolts to be machined must be placed on the surface of the three-jaw chuck for re-clamping and positioning. The whole process takes a long time because the bolts need to be replaced manually. There will be a long downtime during the entire machining process, and automatic feeding cannot be completed at the same time as unloading, which leads to a reduction in machining efficiency.

[0005] Therefore, it is necessary to propose a blanking device for machining hexagonal head bolts to solve the above problems. Summary of the Invention

[0006] The main objective of this invention is to provide a blanking device for processing hexagonal head bolt bodies, which can effectively solve the problem in the prior art that automatic feeding cannot be completed at the same time as blanking, thus leading to reduced production efficiency.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A blanking device for machining hexagonal head bolts includes a machining table, a support frame fixedly connected to the lower surface of the machining table, mounting grooves evenly distributed in a ring shape in the middle of the upper surface of the machining table, a through hole in the center of the upper surface of the machining table, and a disc fixedly connected to the lower surface of the machining table. The lower surface of the machining table is provided with a clamping mechanism for stably holding the hexagonal head bolt body; an auxiliary mechanism for automatically blanking the hexagonal head bolt body is provided below the disc.

[0009] The clamping mechanism includes a positioning component disposed on the surface of the mounting groove for positioning the hexagonal head bolt body, and a first clamping component disposed between the disc and the processing table for stably clamping the hexagonal head bolt body.

[0010] The auxiliary mechanism includes a feeding assembly disposed below the disc for lifting the body of the hexagonal head bolt to be processed, and a second clamping assembly disposed between the feeding assembly and the disc for clamping the body of the hexagonal head bolt to be processed.

[0011] Preferably, the positioning component includes a first clamping block slidably connected to the wall of the mounting groove, a first spring fixedly connected to the surface of the first clamping block away from the through hole, and the end of the first spring away from the first clamping block fixedly connected to the wall of the mounting groove.

[0012] Preferably, the lower end of the surface of the first clamping block near the through hole is provided with an inclined groove.

[0013] Preferably, the first spring is initially in a compressed state.

[0014] Preferably, the first clamping assembly includes a rotating ring rotatably connected to the lower surface of the processing table. A limiting plate evenly distributed in a ring is fixedly connected to the inner side of the rotating ring. The limiting plate is installed in conjunction with the first clamping block. An mounting block is fixedly connected to the lower surface of the processing table. A telescopic rod is fixedly connected to the surface of the mounting block. A connecting block is rotatably connected to the end of the telescopic rod away from the mounting block. A rectangular column is fixedly connected to the outer side of the rotating ring. A sliding groove is formed on the surface of the rectangular column. The connecting block is slidably connected to the sliding groove.

[0015] Preferably, the feeding assembly includes connecting columns that are fixedly connected to the lower surface of the rotating ring and are evenly distributed in a ring. A rotating disk is fixedly connected to one end of the connecting columns away from the rotating ring. A circular hole is formed at the center of the upper surface of the rotating disk. A first protrusion is fixedly connected to one end of the circular hole wall away from the processing table. A lifting column is fitted onto the circular hole wall. A lifting plate is fixedly connected to the upper end of the lifting column. A first spiral groove is formed on the surface of the lifting column away from the lifting plate. The first protrusion is fitted onto the first spiral groove.

[0016] Preferably, the lower surface of the disc is fixedly connected with vertical columns that are evenly distributed in a ring. A second spring is sleeved on the outer side of the vertical column. One end of each of the second springs is fixedly connected to the disc, and the other end of each of the second springs is fixedly connected to the lifting plate.

[0017] Preferably, the second clamping assembly includes cylinders fixedly connected to the lower surface of the disk in a ring-shaped uniform distribution. A second helical groove is formed at the end of the cylinder surface away from the disk. A strip groove is formed on the cylinder surface above the second helical groove. A second protrusion is fitted onto the end of the second helical groove surface near the rotating disk. An arc-shaped block is fixedly connected to the upper surface of the lifting plate in a ring-shaped uniform distribution. A limit groove is formed on the upper surface of the arc-shaped block. A transmission gear is rotatably connected to the upper surface of the arc-shaped block. The second protrusion is fixedly connected to the transmission gear. A movable column is meshed with the outer side of the transmission gear. A transverse groove is formed on the surface of the movable column. A T-shaped column is slidably connected to the wall of the transverse groove. A second clamping block is fixedly connected to one end of the T-shaped column. A third spring is fixedly connected to the end of the T-shaped column away from the second clamping block. The movable column is slidably connected to the arc-shaped block.

[0018] Beneficial effects

[0019] Compared with the prior art, the present invention provides a blanking device for machining hexagonal head bolt bodies, which has the following beneficial effects:

[0020] 1. The unloading device for processing hexagonal head bolts, after processing the hexagonal head bolt body, during the unloading process, the telescopic rod retracts, driving the connecting block to move closer to the mounting block. Relative sliding occurs between the connecting block and the sliding groove. The rectangular column rotates as the connecting block moves, and the rotating ring rotates along with the rectangular column. The rotation of the rotating ring drives the rotating disk to rotate. The first protrusion cooperates with the first spiral groove, driving the lifting column and lifting plate to move upwards. The hexagonal head bolt to be processed moves upwards along with the lifting plate, pushing out the processed hexagonal head bolt and completing the unloading. Simultaneously with unloading, the hexagonal head bolt to be processed is placed between three first clamping blocks. Then, the telescopic rod extends to clamp the hexagonal head bolt to be processed, shortening the downtime in the entire processing process. It can automatically load while unloading, improving processing efficiency.

[0021] 2. The blanking device for processing hexagonal head bolts has a slanted groove on the surface of the first clamping block. When the hexagonal head bolt to be processed moves upward, the three first clamping blocks can move in the direction of compressing the first spring, without obstructing the hexagonal head bolt to be processed. Utilizing the elastic force of the first spring, the reaction force generated by the compression of the first spring acts on the surface of the first clamping block, so that the three first clamping blocks can be in close contact with the surface of the hexagonal head bolt to be processed, and the hexagonal head bolt is placed and positioned for subsequent clamping.

[0022] 3. The unloading device for processing hexagonal head bolts has a movable column slidably connected to the surface of the arc-shaped block. During the upward movement of the lifting plate, the second protrusion and the second spiral groove cooperate, and the transmission gear rotates as the lifting plate moves. The transmission gear meshes with the movable column, thereby driving the movable column to move towards the hexagonal head bolt to be processed. The second clamping block contacts the surface of the hexagonal head bolt to be processed. Subsequently, relative sliding occurs between the T-shaped column and the transverse groove, and the third spring is compressed. Utilizing the elastic force of the third spring, the second clamping block stably clamps and positions the hexagonal head bolt to be processed, ensuring that the hexagonal head bolt to be processed is in a stable state during loading, thus ensuring the stability of loading and the stability of unloading the processed hexagonal head bolt.

[0023] 4. The feeding device for processing the hexagonal head bolt body has one end of the second spring fixedly connected to the disc and the other end of the second spring fixedly connected to the lifting plate. When the lifting plate is at its lowest position, the second spring is stretched to the maximum extent. The elastic force of the second spring can be used to assist the lifting plate and the lifting column to move upward, further ensuring the stable feeding of the hexagonal head bolt to be processed. Attached Figure Description

[0024] Figure 1 This is a partial structural diagram of the mounting groove and disc of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall structure of the present invention from another angle;

[0027] Figure 4 This is the invention Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 This is a top view of the overall structure of the present invention;

[0029] Figure 6 This is a partial structural diagram of the rotating disk of the present invention;

[0030] Figure 7 This is a partial structural schematic diagram of the lifting column and lifting plate of the present invention;

[0031] Figure 8 This is the invention Figure 7 Enlarged view at point B in the middle;

[0032] Figure 9 This is a partial structural diagram of the limiting groove and lifting plate of the present invention;

[0033] Figure 10 This is a partial structural diagram of the inclined groove of the present invention.

[0034] In the diagram: 1. Processing table; 11. Support frame; 12. Mounting slot; 13. Through hole; 14. Disc; 2. Clamping mechanism; 21. Positioning assembly; 211. First clamping block; 212. First spring; 213. Inclined groove; 22. First clamping assembly; 221. Rotating ring; 222. Limiting plate; 223. Mounting block; 224. Telescopic rod; 225. Connecting block; 226. Rectangular column; 227. Slide groove; 3. Auxiliary mechanism; 31. Feeding assembly; 311. Connecting column; 312. Rotating disc 313. Circular hole; 314. First protrusion; 315. Lifting column; 316. Lifting plate; 317. First spiral groove; 32. Second clamping assembly; 321. Cylindrical column; 322. Second spiral groove; 323. Strip groove; 324. Second protrusion; 325. Arc block; 326. Limiting groove; 327. Transmission gear; 328. Movable column; 329. Horizontal groove; 3210. T-shaped column; 3211. Second clamping block; 3212. Third spring; 4. Vertical column; 5. Second spring. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0036] like Figure 1-10 As shown, a blanking device for machining hexagonal head bolts includes a machining table 1, a support frame 11 fixedly connected to the lower surface of the machining table 1, mounting grooves 12 evenly distributed in a ring in the middle of the upper surface of the machining table 1, a through hole 13 at the center of the upper surface of the machining table 1, and a disc 14 fixedly connected to the lower surface of the machining table 1. A clamping mechanism 2 for stably clamping the hexagonal head bolt body is provided on the lower surface of the machining table 1; an auxiliary mechanism 3 for automatically blanking the hexagonal head bolt body is provided below the disc 14.

[0037] The clamping mechanism 2 includes a positioning component 21 disposed on the surface of the mounting groove 12 for positioning the hexagonal head bolt body, and a first clamping component 22 disposed between the disc 14 and the processing table 1 for stably clamping the hexagonal head bolt body.

[0038] The auxiliary mechanism 3 includes a feeding assembly 31 disposed below the disc 14 for lifting the body of the hexagonal head bolt to be processed, and a second clamping assembly 32 disposed between the feeding assembly 31 and the disc 14 for clamping the body of the hexagonal head bolt to be processed.

[0039] The positioning component 21 includes a first clamping block 211 that is slidably connected to the wall of the mounting groove 12. A first spring 212 is fixedly connected to the surface of the first clamping block 211 away from the through hole 13. One end of the first spring 212 away from the first clamping block 211 is fixedly connected to the wall of the mounting groove 12.

[0040] The lower end of the surface of the first clamping block 211 near the through hole 13 is provided with a slanted groove 213;

[0041] When the hexagonal head bolt to be processed moves upward, the three first clamping blocks 211 can move in the direction of compressing the first spring 212, without obstructing the hexagonal head bolt to be processed, so that the hexagonal head bolt to be processed can be fed smoothly.

[0042] The first spring 212 is initially in a compressed state;

[0043] Utilizing the elastic force of the first spring 212, the reaction force generated by the compression of the first spring 212 acts on the surface of the first clamping block 211, so that the three first clamping blocks 211 can be tightly attached to the surface of the hexagonal head bolt to be processed, thereby positioning the hexagonal head bolt.

[0044] The first clamping assembly 22 includes a rotating ring 221 rotatably connected to the lower surface of the processing table 1. A limiting plate 222 with uniformly distributed rings is fixedly connected to the inner side of the rotating ring 221. The limiting plate 222 is installed in conjunction with the first clamping block 211. An mounting block 223 is fixedly connected to the lower surface of the processing table 1. A telescopic rod 224 is fixedly connected to the surface of the mounting block 223. A connecting block 225 is rotatably connected to the end of the telescopic rod 224 away from the mounting block 223. A rectangular column 226 is fixedly connected to the outer side of the rotating ring 221. A sliding groove 227 is opened on the surface of the rectangular column 226. The connecting block 225 is slidably connected to the sliding groove 227.

[0045] The feeding assembly 31 includes connecting columns 311 that are fixedly connected to the lower surface of the rotating ring 221 and are evenly distributed in a ring. A rotating disk 312 is fixedly connected to one end of the connecting columns 311 away from the rotating ring 221. A circular hole 313 is opened at the center of the upper surface of the rotating disk 312. A first protrusion 314 is fixedly connected to one end of the hole wall away from the processing table 1. A lifting column 315 is installed in cooperation with the hole wall of the circular hole 313. A lifting plate 316 is fixedly connected to the upper end of the lifting column 315. A first spiral groove 317 is opened on the surface of the lifting column 315 away from the lifting plate 316. The first protrusion 314 is installed in cooperation with the first spiral groove 317.

[0046] The rotating disk 312 can rotate with the rotating ring 221. The first protrusion 314 cooperates with the first spiral groove 317. The lifting column 315 and the lifting plate 316 can move up and down, thereby lifting the hexagonal head bolts to be processed placed on the upper surface of the lifting plate 316 for feeding.

[0047] A ring of evenly distributed vertical columns 4 are fixedly connected to the lower surface of the disc 14. A second spring 5 is sleeved on the outside of the vertical column 4. One end of each of the multiple second springs 5 ​​is fixedly connected to the disc 14, and the other end of each of the multiple second springs 5 ​​is fixedly connected to the lifting plate 316.

[0048] When the lifting plate 316 is at its lowest point, the second spring 5 is stretched to its maximum extent. The elastic force of the second spring 5 can assist the lifting plate 316 and the lifting column 315 to move upward, further ensuring the stable feeding of the hexagonal head bolts to be processed.

[0049] The second clamping assembly 32 includes cylinders 321 that are fixedly connected to the lower surface of the disk 14 and are evenly distributed in a ring. A second spiral groove 322 is formed at the end of the cylinder 321 away from the disk 14. A strip groove 323 is formed on the surface of the cylinder 321 above the second spiral groove 322. A second protrusion 324 is fitted onto the end of the second spiral groove 322 near the rotating disk 312. An arc-shaped block 325 that is evenly distributed in a ring is fixedly connected to the upper surface of the lifting plate 316. A limit groove 32 is formed on the upper surface of the arc-shaped block 325. 6. A transmission gear 327 is rotatably connected to the upper surface of the arc-shaped block 325. The second protrusion 324 is fixedly connected to the transmission gear 327. A movable column 328 is meshed with the outer side of the transmission gear 327. A transverse groove 329 is opened on the surface of the movable column 328. A T-shaped column 3210 is slidably connected to the groove wall of the transverse groove 329. A second clamping block 3211 is fixedly connected to one end of the T-shaped column 3210. A third spring 3212 is fixedly connected to the end of the T-shaped column 3210 away from the second clamping block 3211. The movable column 328 is slidably connected to the arc-shaped block 325.

[0050] The second clamping component 32 serves to clamp and position the hexagonal head bolt to be processed. The elastic force of the third spring 3212 ensures that the second clamping block 3211 stably clamps the hexagonal head bolt to be processed.

[0051] It should be noted that a controller can be installed on the lower surface of the processing table 1. The hydraulic oil pump station connected to the telescopic rod 224 is electrically connected to the controller, which is controlled by a computer.

[0052] It should be noted that the present invention is a blanking device for processing hexagonal head bolts. Initially, the first spring 212 is in a compressed state, which can place and position the hexagonal head bolt for clamping. The third spring 3212 is in a compressed state. The reaction force generated by the compression of the third spring 3212 acts on the surface of the T-shaped column 3210, ensuring that the hexagonal head bolt to be processed can be in a stable state after the second clamping block 3211 clamps and positions the hexagonal head bolt to be processed.

[0053] When in use, the telescopic rod 224 extends, causing the connecting block 225 to move away from the mounting block 223. The connecting block 225 slides relative to the slide groove 227. The rectangular column 226 rotates as the connecting block 225 moves. With the geometric center of the rotating ring 221 as the center of rotation, the rotating ring 221 rotates with the rectangular column 226. The limiting plate 222 on the inner side of the rotating ring 221 rotates together with the rotating ring 221. The limiting plate 222 and the first clamping block 211 gradually approach each other until they are in close contact, thus limiting the movement of the first clamping block 211 and ensuring that the first clamping block 211 stably clamps the hexagonal head bolt.

[0054] During this process, due to the connecting action of the connecting column 311, the rotating disk 312 rotates along with the rotating ring 221. A circular hole 313 is provided at the center of the upper surface of the rotating disk 312, which is engaged by the first protrusion 314 and the first spiral groove 317. However, the lifting column 315 and the lifting plate 316 do not rotate with the rotating disk 312 under the condition of the cylinder 321 engaging with the transmission gear 327. Therefore, the first protrusion 314 can move relative to the first spiral groove 317, and both the lifting column 315 and the lifting plate 316 move downwards until the lower surface of the lifting plate 316 contacts the surface of the rotating disk 312. As the lifting column 315 moves downwards, the lower surface of the lifting plate 316 contacts the surface of the rotating disk 312. The plate 316 and the lifting column 315 move downwards, and the second protrusion 324 and the second spiral groove 322 move relative to each other, thereby driving the transmission gear 327 to rotate. The transmission gear 327 meshes with the movable column 328, thereby driving the movable column 328 to move. The three movable columns 328 move away from each other, and the distance between the lifting plate 316 and the disc 14 gradually increases. The two ends of the second spring 5 are fixedly connected to the disc 14 and the lifting plate 316 respectively. The second spring 5 is gradually stretched. When the hexagonal head bolt that has been clamped is being processed, another hexagonal head bolt to be processed is placed in the middle of the upper surface of the lifting plate 316.

[0055] When the clamped hexagonal head bolt is finished and ready for unloading, the telescopic rod 224 retracts, causing the connecting block 225 to move towards its initial position. The rectangular column 226 moves along with the connecting block 225, causing the rotating ring 221 to rotate. The limiting plate 222 separates from the first clamping block 211, no longer clamping the finished hexagonal head bolt. At this point, under the elastic force of the first spring 212, the three first clamping blocks 211 can position the finished hexagonal head bolt. The rotation of the rotating ring 221 causes the rotating disk 312 to rotate. The first protrusion 314 engages with the first spiral groove 317, driving the lifting plate 316... As the lifting column 315 moves upward, the second spring 5 assists in the upward movement of the lifting column 315 and the lifting plate 316, ensuring their stability during upward movement. During the upward movement of the lifting plate 316, the second protrusion 324 and the second spiral groove 322 on the surface of the transmission gear 327 move relative to each other again. Since the transmission gear 327 is rotatably connected to the arc-shaped block 325, the rotation of the transmission gear 327 drives the movable column 328 to move closer to each other. The second clamping block 3211 moves along with the movable column 328. The T-shaped column 3210 contacts the surface of the hexagonal head bolt to be processed, positioning the bolt. As the movable column 328 continues to move, relative sliding occurs between the T-shaped column 3210 and the transverse groove 329, compressing the third spring 3212. The elastic force of the third spring 3212 ensures that the second clamping block 3211 stably clamps the hexagonal head bolt. During the upward movement of the lifting plate 316 (i.e., the loading process), the processed hexagonal head bolt is ejected, completing the unloading. Unloading is completed simultaneously with loading. A slanted groove 213 is opened on the surface of the first clamping block 211, allowing the hexagonal head bolt to slide towards... When moving upwards, the three first clamping blocks 211 can move in the direction of compressing the first spring 212, without obstructing the hexagonal head bolt to be processed. Utilizing the elastic force of the first spring 212, the reaction force generated by the compression of the first spring 212 acts on the surface of the first clamping block 211, positioning the hexagonal head bolt to be processed and completing the loading. It is only necessary to control the extension of the telescopic rod 224, so that the limiting plate 222 contacts the surface of the first clamping block 211, thereby completing the clamping and processing. This cycle is repeated, which shortens the downtime in the entire processing process and can complete automatic loading while unloading, thus improving processing efficiency.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A blanking device for machining hexagonal head bolts, comprising a machining table (1), a support frame (11) fixedly connected to the lower surface of the machining table (1), mounting grooves (12) evenly distributed in a ring at the center of the upper surface of the machining table (1), a through hole (13) at the center of the upper surface of the machining table (1), and a disc (14) fixedly connected to the lower surface of the machining table (1), characterized in that: The lower surface of the processing table (1) is provided with a clamping mechanism (2) for stably clamping the hexagonal bolt body; the lower part of the disc (14) is provided with an auxiliary mechanism (3) for automatically unloading the hexagonal head bolt body. The clamping mechanism (2) includes a positioning component (21) disposed on the surface of the mounting groove (12) for positioning the hexagonal head bolt body and a first clamping component (22) disposed between the disc (14) and the processing table (1) for stably clamping the hexagonal head bolt body. The auxiliary mechanism (3) includes a feeding assembly (31) disposed below the disc (14) for lifting the body of the hexagonal head bolt to be processed, and a second clamping assembly (32) disposed between the feeding assembly (31) and the disc (14) for clamping the body of the hexagonal head bolt to be processed. The positioning component (21) includes a first clamping block (211) slidably connected to the wall of the mounting groove (12). The first clamping component (22) includes a rotating ring (221) rotatably connected to the lower surface of the processing table (1). A limiting plate (222) with a ring-shaped uniform distribution is fixedly connected to the inner side of the rotating ring (221). The limiting plate (222) is installed in cooperation with the first clamping block (211). An mounting block (223) is fixedly connected to the lower surface of the processing table (1). A telescopic rod (224) is fixedly connected to the surface of the mounting block (223). A connecting block (225) is rotatably connected to one end of the telescopic rod (224) away from the mounting block (223). A rectangular column (226) is fixedly connected to the outer side of the rotating ring (221). A sliding groove (227) is opened on the surface of the rectangular column (226). The connecting block (225) is slidably connected to the sliding groove (227). The feeding assembly (31) includes connecting columns (311) that are fixedly connected to the lower surface of the rotating ring (221) and are evenly distributed in a ring. A rotating disk (312) is fixedly connected to one end of the connecting columns (311) away from the rotating ring (221). A circular hole (313) is opened at the center of the upper surface of the rotating disk (312). A first protrusion (314) is fixedly connected to one end of the hole wall (313) away from the processing table (1). A lifting column (315) is installed in cooperation with the hole wall (313). A lifting plate (316) is fixedly connected to the upper end of the lifting column (315). A first spiral groove (317) is opened on one end of the surface of the lifting column (315) away from the lifting plate (316). The first protrusion (314) is installed in cooperation with the first spiral groove (317). The second clamping assembly (32) includes cylinders (321) fixedly connected to the lower surface of the disc (14) and evenly distributed in a ring. A second spiral groove (322) is formed at the end of the cylinder (321) away from the disc (14). A strip groove (323) is formed above the second spiral groove (322) on the surface of the cylinder (321). A second protrusion (324) is fitted onto the end of the second spiral groove (322) near the rotating disc (312). An arc-shaped block (325) is fixedly connected to the upper surface of the lifting plate (316) and evenly distributed in a ring. A limit groove (326) is formed on the upper surface of the arc-shaped block (325). A transmission gear (327) is rotatably connected to the upper surface of the arc-shaped block (325). The second protrusion (324) is fixedly connected to the transmission gear (327). A movable column (328) is meshed with the outer side of the transmission gear (327). A transverse groove (329) is provided on the surface of the movable column (328). A T-shaped column (3210) is slidably connected to the groove wall of the transverse groove (329). A second clamping block (3211) is fixedly connected to one end of the T-shaped column (3210). A third spring (3212) is fixedly connected to the end of the T-shaped column (3210) away from the second clamping block (3211). The movable column (328) is slidably connected to the arc-shaped block (325).

2. The blanking device for machining a hexagonal head bolt body according to claim 1, characterized in that: A first spring (212) is fixedly connected to the surface of the first clamping block (211) away from the through hole (13), and the end of the first spring (212) away from the first clamping block (211) is fixedly connected to the groove wall of the mounting groove (12).

3. The blanking device for machining a hexagonal head bolt body according to claim 2, characterized in that: The first clamping block (211) has a slanted groove (213) at the lower end of its surface near the through hole (13).

4. The blanking device for machining a hexagonal head bolt body according to claim 2, characterized in that: The first spring (212) is initially in a compressed state.

5. The blanking device for machining a hexagonal head bolt body according to claim 1, characterized in that: The lower surface of the disc (14) is fixedly connected with vertical columns (4) that are evenly distributed in a ring. A second spring (5) is sleeved on the outside of the vertical column (4). One end of each of the second springs (5) is fixedly connected to the disc (14), and the other end of each of the second springs (5) is fixedly connected to the lifting plate (316).

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