Stamping lathe for producing precision structure die casting

Abstract

The invention discloses a stamping lathe for precise structure die casting production, and relates to the technical field of aluminum alloy precise die forgings, the stamping lathe comprises a placing base, a positioning stamping structure is arranged on one side of the placing base, and an auxiliary die changing structure is arranged on the side, close to the positioning stamping structure, of the placing base; a cleaning structure is arranged on the upper side, close to the auxiliary die changing structure, of the containing base, and a replaceable die is arranged in the positioning stamping structure. Different mechanisms are driven by multiple servo motors, and multiple optimization is realized: during die replacement, gears and swing rods are linked to complete automatic conveying and lifting of dies, so that the process is simplified, the precision is improved, and the downtime is shortened; during stamping, the double servo motors are matched with the buffer assembly, precise die assembly and stable reset are guaranteed, damage is reduced, and the service life of equipment is prolonged; during cleaning, the synchronous wheel and the connecting rod drive the cleaning frame to automatically clean mold residues, manual intervention is not needed, the subsequent machining quality is guaranteed, and the production efficiency and the automation level are overall improved.

Description

Technical Field

[0001] This invention relates to the field of precision aluminum alloy forging technology, and in particular to a stamping lathe for producing precision structural die-cast parts. Background Technology

[0002] Existing stamping lathes are commonly used equipment in industrial production for stamping and forming metal parts. They mainly consist of core components such as the machine body, stamping mechanism, die assembly, and worktable. The machine body is mostly made of high-strength materials, providing stable support for the entire equipment, reducing shaking during operation, and ensuring the stability of the processing. The stamping mechanism, as the core execution component, is usually driven by hydraulic or electric means. It can adjust the stamping force and stroke according to processing needs to meet the forming requirements of different metal parts. The die assembly needs to be customized according to the shape and specifications of the specific workpiece. The precise fit of the die is crucial to the shaping of the metal raw material and determines the forming effect of the stamped parts. The worktable is used to place the raw material to be processed and is equipped with a positioning structure to help the raw material be accurately aligned and avoid processing deviations. These machines are widely used in the automotive, electronics, and home appliance industries. They can produce various metal structural parts, from simple flat parts to complex irregular shapes, and can achieve efficient stamping and forming of metal raw materials. Some models also have basic operation and control functions, allowing operators to adjust processing parameters according to production needs and helping to improve production efficiency.

[0003] When machining precision aluminum alloy forgings on existing stamping lathes, the cumbersome process of changing dies is particularly prominent, severely impacting production efficiency and processing continuity. The dies on these lathes are often rigidly connected to the stamping mechanism via multiple sets of bolts and locating pins. Replacement requires manual disassembly of all fixed components, necessitating repeated calibration of bolt hole positions. The disassembly process alone consumes a significant amount of time. Furthermore, dies for precision aluminum alloy forgings often need to be custom-made to accommodate the complex curved surfaces and irregular structures of the parts. Different dies have different dimensions and installation interfaces, requiring readjustment of the stamping mechanism's stroke, pressure transmission path, and the worktable's positioning reference after replacement. This process... The existing process lacks a standardized adaptable structure and relies on manual adjustment based on operator experience, which is prone to positioning deviations. At the same time, the changeover process requires machine downtime and waiting, making it impossible to achieve uninterrupted production. Especially for the processing of small batches and multiple batches of precision aluminum alloy forgings, frequent mold changes will significantly increase production downtime, reduce equipment utilization, and may also cause wear on the mold mounting base due to repeated disassembly and assembly, further affecting the subsequent processing accuracy. It is difficult to meet the needs of efficient and flexible production, which brings certain adverse effects to the user experience. In order to overcome the shortcomings of the existing technology, we propose a stamping lathe for the production of precision die-cast parts. Summary of the Invention

[0004] The main objective of this invention is to provide a stamping lathe for producing precision die-cast parts, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A stamping lathe for producing precision die-cast parts includes a base, a positioning stamping structure on one side of the base, an auxiliary mold changing structure on the side of the base near the positioning stamping structure, a cleaning structure on the upper side of the base near the auxiliary mold changing structure, and a replaceable mold inside the positioning stamping structure. The auxiliary mold-changing structure includes a second fixed frame fixedly installed on one side of the base. A third servo motor is fixedly installed on the upper part of one side of the second fixed frame. A movable inner groove is opened inside the second fixed frame. A first gear is detachably installed on the rotor of the third servo motor. A second gear is rotatably installed in the middle of the movable inner groove. Four sets of locking teeth are fixedly installed at equal intervals on one side of the outer wall of the second gear. A third swing rod is rotatably installed on the side of the movable inner groove near the second gear. A second fixed column is fixedly installed on one side of the third swing rod. A second tension spring is detachably installed at one end of the second fixed column. A third fixed column is detachably installed at the end of the second tension spring away from the second fixed column. A first rotating frame is rotatably installed on the lower side of the movable inner groove. A sliding groove is opened inside the first rotating frame. A slider is slidably installed inside the sliding groove.

[0006] Preferably, a first limiting groove is formed in the middle of the upper side of the placement base, and a limiting seat is slidably installed inside the first limiting groove. A third gear is rotatably installed on the side of the placement base near the limiting seat. A sliding groove is formed on the side of the placement base near the third gear, and a sliding block is slidably installed inside the sliding groove. A first linkage rod is fixedly installed on the side of the first gear away from the third servo motor. A rotating disk is fixedly installed on the end of the first linkage rod away from the first gear. Second locking grooves are formed on both sides of the rotating disk. Two sets of fourth fixing posts are fixedly installed on the outer wall of one side of the rotating disk. A second locking post is rotatably installed on one side of the second fixing frame. The system includes a linkage rod, a second rotating frame fixedly mounted at the end of the second linkage rod away from the second gear, a third linkage rod fixedly mounted at the middle of one side of the second rotating frame, a toggle rod fixedly mounted at one side of the middle of the second rotating frame, and fifth fixed posts fixedly mounted at equal intervals around the second rotating frame. A swing frame is rotatably mounted on the outer wall of the third linkage rod near the second rotating frame, and a second limiting groove is provided in the middle of the swing frame. Positioning plates are fixedly mounted on both outer walls of the third linkage rod, and four sets of electric telescopic rods are fixedly mounted at equal intervals on opposite sides of the two sets of positioning plates. A locking block is rotatably mounted on the telescopic end of each set of electric telescopic rods.

[0007] Preferably, the actuating rod is within the movement trajectory of the second limiting groove, the fifth fixed post is adapted to the second locking groove, and the fifth fixed post is within the movement trajectory of the second locking groove. A protrusion is provided on one side of the first rotating frame, and the protrusion of the first rotating frame is locked with the locking teeth. The positions of the first rotating frame and the sliding groove correspond to each other, and the sliding block is within the movement trajectory of the first rotating frame. A rack is provided on the upper side of the sliding block and meshes with the third gear. A rack is fixedly installed on one side of the limiting seat and meshes with the other end of the third gear. The first gear and the second gear mesh with each other. The third fixed post is fixedly installed inside the movable inner groove. One end of the third swing rod is in contact with one side of the first rotating frame, and the first rotating frame is within the movement trajectory of the third swing rod. A third buffer spring is fixedly installed on one end of the sliding block.

[0008] Preferably, the positioning stamping structure includes two sets of first fixing rods fixedly installed on one side of the placement base. An upper top plate is fixedly installed on the top of the two sets of first fixing rods. A first servo motor is fixedly installed on one side of the upper top plate. A first swing rod is detachably installed on the rotor of the first servo motor. A second swing rod is rotatably installed on one end of the first swing rod. An upper limit plate is slidably installed on the upper outer wall of the first fixing rod. A first movable groove is opened in the middle of the upper limit plate. First locking grooves are opened on both sides of the upper limit plate. A locking rod is provided inside each set of first locking grooves. A stamping seat is provided on the lower side of each set of locking rods. A first buffer spring is provided on the lower side of each stamping seat.

[0009] Preferably, a first fixed frame is fixedly installed on the side of the placement base near the first fixed rod. A second servo motor is fixedly installed on the outer wall of one side of the first fixed frame. A second movable groove is opened inside the first fixed frame. A cam block is detachably installed at the rotor of the second servo motor. A movable frame is slidably installed inside the first fixed frame. Two sets of second buffer springs are detachably installed inside one side of the movable frame. A stop block is fixedly installed at the lower end of one set of locking rods. A first fixed post is fixedly installed on the upper side of each set of locking rods. A first tension spring is detachably installed in the middle of adjacent first fixed posts. A first swing block is fixedly installed on the lower side of each set of locking rods. A first connecting rod is rotatably installed in the middle of adjacent first swing blocks.

[0010] Preferably, the stamping seat has a third movable groove on both sides, the two sets of locking rods are located inside the third movable groove, the two sets of first swing blocks face opposite directions, and a limiting block is fixedly installed in the middle of the two sets of first fixing rods. The abutment block is in contact with one side of the movable frame.

[0011] Preferably, the cleaning structure includes two sets of second fixed rods fixedly installed on the side of the base away from the first fixed rod. A fourth servo motor is fixedly installed on the upper side of the top plate. A first synchronous pulley is detachably installed on the rotor of the fourth servo motor. A fixed block is fixedly installed on the upper side of the second fixed rod. A second synchronous pulley is rotatably installed inside the fixed block. A rotating column is fixedly installed on one side of the second synchronous pulley. A sixth fixed column is fixedly installed inside the rotating column. A second swing block is slidably installed on the outer wall of the sixth fixed column. A second connecting rod is fixedly installed at one end of the second swing block. A universal joint is provided at the lower end of the second connecting rod. A seventh fixed column is fixedly installed on one side of the universal joint. A cleaning frame is fixedly installed on the side of the seventh fixed column away from the universal joint. The first synchronous pulley and the second synchronous pulley are connected by a transmission belt.

[0012] Preferably, the replaceable mold includes an upper mold fixedly installed on the lower part of the stamping seat, and a lower mold is provided on the upper side of the limiting seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In this invention, a third servo motor drives multiple sets of gears, swing rods, and linkage mechanisms to work together, achieving automated coordination of horizontal mold conveying and vertical lifting. This eliminates the need for manual disassembly of fixed components, significantly simplifying the mold replacement process for precision aluminum alloy forgings. The gear meshing transmission and tension spring-assisted reset design ensure precise connection between mold conveying and lifting actions. The limit seat moves along a preset channel to ensure mold positioning accuracy and avoid manual operation deviations. At the same time, the mechanism can automatically reset for the next mold change cycle, adapting to the frequent mold change requirements in multi-batch production, significantly reducing mold change downtime, improving equipment utilization and production continuity, and meeting the requirements of flexible production.

[0014] In this invention, the swing arm, cam block, and buffer assembly are linked by dual servo motors to achieve precise control and smooth reset of the stamping process. The servo motor-driven swing structure can stably transmit downward pressure, ensuring precise mold closing between the upper and lower dies and guaranteeing the forming quality of aluminum alloy precision forgings. The cam block and movable frame can promptly release the jamming, and the buffer spring enables the stamping seat to rise slowly, avoiding workpiece damage or equipment impact caused by rapid mold detachment. At the same time, the buffer design can reduce vibration and noise during the stamping process, extend the service life of the mold and equipment, and balance processing accuracy and operational safety, thus meeting the stable production needs of precision stamping.

[0015] In this invention, a cleaning mechanism consisting of a servo motor-driven synchronous wheel, connecting rod, and universal joint is used to convert rotational motion into a reciprocating oscillation of a cleaning frame along a specific trajectory. This achieves automated cleaning of residues on the mold surface. The synchronous wheel transmission ensures stable power transmission, and the controllable movement trajectory of the cleaning frame allows for comprehensive coverage of the mold surface, effectively removing stamping residues. This avoids the omissions and inefficiencies of manual cleaning, eliminating the need for machine downtime and manual intervention. Cleaning can be completed during the stamping interval, reducing production interruption time, ensuring the surface quality of subsequent stamped parts and mold precision, and reducing manual labor intensity. At the same time, the mechanism is adaptable to the cleaning needs of molds of different specifications, improving the continuity and automation level of the production process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the top plate of the present invention; Figure 3 This is a schematic diagram of the structure of the first servo motor of the present invention; Figure 4 This is a schematic diagram of the structure of the first tension spring of the present invention; Figure 5 This is a schematic diagram of the structure of the first fixing column of the present invention; Figure 6 This is a schematic diagram of the structure of the first movable groove of the present invention; Figure 7 This is a schematic diagram of the structure of the limiting block of the present invention; Figure 8 This is a schematic diagram of the positioning disk of the present invention; Figure 9 This is a schematic diagram of the structure of the second gear of the present invention; Figure 10 This is a schematic diagram of the locking teeth structure of the present invention; Figure 11 This is a schematic diagram of the slide groove of the present invention; Figure 12 This is a schematic diagram of the structure of the fourth fixing column of the present invention; Figure 13 This is a schematic diagram of the structure of the second rotating frame of the present invention; Figure 14 This is a schematic diagram of the structure of the third gear of the present invention; Figure 15 This is a schematic diagram of the structure of the fixing block of the present invention; Figure 16 This is a schematic diagram of the structure of the second swing block of the present invention.

[0017] In the picture: 1. Place the base; 2. Positioning stamping structure; 21. First fixed rod; 22. Top plate; 23. First servo motor; 24. First swing rod; 25. Second swing rod; 26. Upper limit plate; 27. First movable groove; 28. First locking groove; 29. ​​Locking rod; 210. Limit block; 211. Stamping seat; 212. First buffer spring; 213. Abutment block; 214. First fixed frame; 215. Second servo motor; 216. Cam block; 217. Movable frame; 218. Second buffer spring; 219. Second movable groove; 220. Third movable groove; 221. First tension spring; 222. First fixed column; 223. First swing block; 224. First connecting rod; 3. Auxiliary mold changing structure; 31. Second fixed frame; 32. First limiting groove; 33. Third servo motor; 34. Movable inner groove; 35. First gear; 36. Second gear; 37. Locking gear; 38. Limiting seat; 39. Third swing rod; 310. Second fixed post; 311. Third fixed post; 312. Second tension spring; 313. First rotating frame; 314. Slide groove; 315. Slider; 316. First linkage rod; 317. 318. Second linkage rod; 319. Sliding groove; 320. Sliding block; 321. Third gear; 322. Third buffer spring; 323. Rotating disk; 324. Second locking groove; 325. Fourth fixed post; 326. Second rotating frame; 327. Fifth fixed post; 328. Actuating rod; 329. Second limiting groove; 330. Swing frame; 331. Third linkage rod; 332. Positioning disk; 333. Electric telescopic rod; 334. Locking block; 4. Cleaning structure; 41. Second fixing rod; 42. Fixing block; 43. Fourth servo motor; 44. First synchronous pulley; 45. Second synchronous pulley; 46. Rotating column; 47. Sixth fixing column; 48. Second swing block; 49. Second connecting rod; 410. Universal joint; 411. Seventh fixing column; 412. Cleaning frame; 5. Replaceable mold; 51. Upper mold; 52. Lower mold. Detailed Implementation

[0018] 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.

[0019] Example 1, as Figures 7-14As shown, when the mold needs to be replaced, the first gear 35 is driven to rotate by the third servo motor 33. The first gear 35 meshes with the second gear 36. The locking teeth 37 on the second gear 36 rotate with the first rotating frame 313. When the second gear 36 rotates, the third swing rod 39 locks against the locking teeth 37, thereby intermittently disengaging the third swing rod 39 from the locking teeth 37. When the third swing rod 39 disengages from the locking teeth 37, the second tension spring 312 pulls on the first rotating frame 313, and the third swing rod... The contact between 39 and the first rotating frame 313 pushes the first rotating frame 313 to swing. The first rotating frame 313 pushes the sliding block 319 to move horizontally within the sliding groove 318. The rack on the upper side of the sliding block 319 meshes with the third gear 320, thereby driving the third gear 320 to rotate. The third gear 320 then meshes with the rack on the side of the limiting seat 38, ultimately driving the limiting seat 38, on which the lower mold 52 is mounted, to slide into or out of the processing position along the first limiting groove 32, completing the horizontal transport of the mold. When the first gear 35 rotates, it drives the rotating disk 322 to start rotating synchronously. The contact between the fourth fixed post 324 on the rotating disk 322 and the swing frame 329 enables the swing frame 329 to push the actuating rod 327 through the second limiting groove 328. Since the actuating rod 327 is fixedly connected to the second rotating frame 325, it drives the second rotating frame 325 to rotate synchronously, forcing the third linkage rod 330 to start rotating. Then, it drives the positioning disks 331 on both sides of the third linkage rod 330 to rotate synchronously, so that the electric telescopic rod 332 and the locking block 333 on the positioning disk 331 correspond to the position of the lower mold 52 on the upper side of the sliding limiting seat 38. The electric telescopic rod 332 is activated to push the locking block 52. The positioning block 333 engages with the slots on both sides of the lower mold 52, and then the rotation of 330 generates a reciprocating lifting action. Subsequently, under the lifting action of the third linkage rod 330, the entire mold clamping mechanism vertically lifts the mold. The fourth fixed column 324 rotates with the rotating disk 322, and its movement trajectory will contact the third swing rod 39. The third swing rod 39 pulls the first rotating frame 313 through the second fixed column 310 and the second tension spring 312, causing it to disengage from the locking tooth 37, preparing for the next mold changing cycle. Through the cooperation of horizontal conveying and vertical lifting, automatic mold changing is realized.

[0020] Example 2, as Figures 1-6As shown, when stamping is required, raw materials are first added to 52 manually or mechanically. Then, the first servo motor 23 is started, driving the first swing rod 24 to move, which in turn pushes the second swing rod 25 to swing up and down. The downward pressing action of the second swing rod 25 pushes the upper limit plate 26 to slide down along the first fixed rod 21. When the upper limit plate 26 presses down, it will press the locking rods 29 on both sides through the first locking groove 28, causing them to move downward. The abutment block 213 at the bottom of the locking rod 29 will contact the movable frame 217 during the downward movement. The second servo motor 215 drives the cam block 216 to rotate. When the protruding part of the cam block 216 turns to the movable frame 217, it will lift it up. The lifted movable frame 217 will push against the stop block 213 in the opposite direction, squeezing the locking rod 29 out of the first locking groove 28. At this time, since the stamping seat 211 and its linked locking rod 29 are separated from the pressure of the upper limit plate 26, the stamping seat 211 is slowly lifted by the buffer of the first buffer spring 212, so that the upper mold 51 and the lower mold 52 are separated from each other, and the stamping of the workpiece is completed.

[0021] Example 3, as Figures 15-16 As shown, the fourth servo motor 43 starts, driving the first synchronous wheel 44 to rotate, which in turn drives the second synchronous wheel 45 to rotate via the synchronous belt. The second synchronous wheel 45 drives the rotating column 46 to rotate, and the sixth fixed column 47, which is fixed inside the rotating column 46, moves in a circular motion. The second swing block 48 is fitted on the sixth fixed column 47, so one end of it is driven by the sixth fixed column 47, and the other end converts the rotational motion into a reciprocating swing along a specific trajectory through the second connecting rod 49 and the universal joint 410. The seventh fixed column 411 and the cleaning frame 412 are installed on the universal joint 410. Therefore, the cleaning frame 412, driven by the second connecting rod 49, will perform brushing and cleaning operations on the mold surface. Its movement trajectory is determined by the entire linkage mechanism, thereby effectively removing residue.

[0022] 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 stamping lathe for producing precision die-cast parts, comprising a base (1), characterized in that: A positioning stamping structure (2) is provided on one side of the placement base (1), an auxiliary mold changing structure (3) is provided on the side of the placement base (1) near the positioning stamping structure (2), a cleaning structure (4) is provided on the upper side of the placement base (1) near the auxiliary mold changing structure (3), and a replaceable mold (5) is provided inside the positioning stamping structure (2). The auxiliary mold-changing structure (3) includes a second fixed frame (31) fixedly installed on one side of the placement base (1). A third servo motor (33) is fixedly installed on the upper part of one side of the second fixed frame (31). A movable inner groove (34) is opened inside the second fixed frame (31). A first gear (35) is detachably installed at the rotor of the third servo motor (33). A second gear (36) is rotatably installed in the middle of the movable inner groove (34). Four sets of locking teeth (37) are fixedly installed at equal intervals on one side of the outer wall of the second gear (36). The movable inner groove (34) is close to the second gear (36). A third swing rod (39) is rotatably mounted on one side of the third swing rod (39), and a second fixed column (310) is fixedly mounted on one side of the third swing rod (39). A second tension spring (312) is detachably mounted on one end of the second fixed column (310), and a third fixed column (311) is detachably mounted on the end of the second tension spring (312) away from the second fixed column (310). A first rotating frame (313) is rotatably mounted on the lower side of the movable inner groove (34). A sliding groove (314) is provided inside the first rotating frame (313), and a slider (315) is slidably mounted inside the sliding groove (314).

2. The stamping lathe for producing precision die-cast parts according to claim 1, characterized in that: A first limiting groove (32) is provided in the middle of the upper side of the placement base (1). A limiting seat (38) is slidably installed inside the first limiting groove (32). A third gear (320) is rotatably installed on the side of the placement base (1) near the limiting seat (38). A sliding groove (318) is provided on the side of the placement base (1) near the third gear (320). A sliding block (319) is slidably installed inside the sliding groove (318). A first linkage rod (316) is fixedly installed on the side of the first gear (35) away from the third servo motor (33). A rotating disk (322) is fixedly installed on the end of the first linkage rod (316) away from the first gear (35). A second locking groove (323) is provided on both sides of the rotating disk (322). Two sets of fourth fixing columns (324) are fixedly installed on the outer wall of one side of the rotating disk (322). A second linkage rod is rotatably installed on one side of the second fixing frame (31). (317), a second rotating frame (325) is fixedly installed at the end of the second linkage rod (317) away from the second gear (36). A third linkage rod (330) is fixedly installed in the middle of one side of the second rotating frame (325). A toggle rod (327) is fixedly installed in the middle of one side of the second rotating frame (325). A fifth fixed column (326) is fixedly installed at equal intervals around the second rotating frame (325). A swing frame (329) is rotatably installed on the outer wall of the third linkage rod (330) near the second rotating frame (325). A second limiting groove (328) is opened in the middle of the swing frame (329). Positioning plates (331) are fixedly installed on both outer walls of the third linkage rod (330). Four sets of electric telescopic rods (332) are fixedly installed at equal intervals on the opposite side of the two sets of positioning plates (331). A locking block (333) is rotatably installed at the telescopic end of each set of electric telescopic rods (332).

3. The stamping lathe for producing precision die-cast parts according to claim 2, characterized in that: The actuating lever (327) is within the movement trajectory of the second limiting groove (328). The fifth fixing post (326) is adapted to the second locking groove (323), and the fifth fixing post (326) is within the movement trajectory of the second locking groove (323). A protrusion is provided on one side of the first rotating frame (313), and the protrusion of the first rotating frame (313) is locked with the locking tooth (37). The positions of the first rotating frame (313) and the sliding groove (318) correspond to each other, and the sliding block (319) is within the movement trajectory of the first rotating frame (313). The upper side of the sliding block (319) is provided with... A rack is provided and meshes with a third gear (320). A rack is fixedly installed on one side of the limiting seat (38) and meshes with the other end of the third gear (320). The first gear (35) meshes with the second gear (36). The third fixed column (311) is fixedly installed inside the movable inner groove (34). One end of the third swing rod (39) is in contact with one side of the first rotating frame (313), and the first rotating frame (313) is within the movement trajectory of the third swing rod (39). A third buffer spring (321) is fixedly installed on one end of the sliding block (319).

4. The stamping lathe for producing precision die-cast parts according to claim 3, characterized in that: The positioning stamping structure (2) includes two sets of first fixing rods (21) fixedly installed on one side of the placement base (1). The top of the two sets of first fixing rods (21) is fixedly installed with an upper top plate (22). A first servo motor (23) is fixedly installed on one side of the upper top plate (22). A first swing rod (24) is detachably installed at the rotor of the first servo motor (23). A second swing rod (25) is rotatably installed at one end of the first swing rod (24). An upper limit plate (26) is slidably installed on the upper outer wall of the first fixing rod (21). A first movable groove (27) is opened in the middle of the upper limit plate (26). A first locking groove (28) is opened on both sides of the upper limit plate (26). A locking rod (29) is provided inside each set of first locking grooves (28). A stamping seat (211) is provided on the lower side of each set of locking rods (29). A first buffer spring (212) is provided on the lower side of each stamping seat (211).

5. A stamping lathe for producing precision die-cast parts according to claim 4, characterized in that: A first fixed frame (214) is fixedly installed on the side of the placement base (1) near the first fixed rod (21). A second servo motor (215) is fixedly installed on the outer wall of one side of the first fixed frame (214). A second movable groove (219) is opened inside the first fixed frame (214). A cam block (216) is detachably installed at the rotor of the second servo motor (215). A movable frame (217) is slidably installed inside the first fixed frame (214). The movable frame (217) has a slidable groove on one side of its inner side. The part is detachably installed with two sets of second buffer springs (218), and a stop block (213) is fixedly installed at the lower end of one set of the locking rods (29). A first fixing post (222) is fixedly installed on the upper side of each set of the locking rods (29). A first tension spring (221) is detachably installed in the middle of adjacent first fixing posts (222). A first swing block (223) is fixedly installed on the lower side of each set of the locking rods (29). A first connecting rod (224) is rotatably installed in the middle of adjacent first swing blocks (223).

6. A stamping lathe for producing precision die-cast parts according to claim 5, characterized in that: The stamping seat (211) has a third movable groove (220) on both sides. The two sets of locking rods (29) are located inside the third movable groove (220). The two sets of first swing blocks (223) face opposite directions. Limiting blocks (210) are fixedly installed in the middle of the two sets of first fixing rods (21). The abutment block (213) is in contact with one side of the movable frame (217).

7. A stamping lathe for producing precision die-cast parts according to claim 4, characterized in that: The cleaning structure (4) includes two sets of second fixing rods (41) fixedly installed on the side of the placement base (1) away from the first fixing rod (21). A fourth servo motor (43) is fixedly installed on the upper side of the top plate (22). A first synchronous wheel (44) is detachably installed on the rotor of the fourth servo motor (43). A fixing block (42) is fixedly installed on the upper side of the second fixing rods (41). A second synchronous wheel (45) is rotatably installed inside the fixing block (42). A rotating column (46) is fixedly installed on one side of the second synchronous wheel (45). The interior is fixedly installed with a sixth fixed column (47), and a second swing block (48) is slidably installed on the outer wall of the sixth fixed column (47). A second connecting rod (49) is fixedly installed at one end of the second swing block (48), and a universal joint (410) is provided at the lower end of the second connecting rod (49). A seventh fixed column (411) is fixedly installed on one side of the universal joint (410), and a cleaning frame (412) is fixedly installed on the side of the seventh fixed column (411) away from the universal joint (410). The first synchronous pulley (44) and the second synchronous pulley (45) are connected by a transmission belt.

8. A stamping lathe for producing precision die-cast parts according to claim 6, characterized in that: The replaceable mold (5) includes an upper mold (51) fixedly installed on the lower part of the stamping base (211), and a lower mold (52) is provided on the upper side of the limiting base (38).

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