Workpiece auxiliary correction stamping device

Abstract

The application relates to the technical field of stamping equipment, and discloses a workpiece auxiliary correction stamping device, which comprises a punch main body, the bottom of the punch main body is provided with a positioning plate, the top end of the positioning plate is provided with a positioning tool, the top of the positioning tool is provided with a correction disc, the bottom of the correction disc is provided with a plurality of arc-shaped inserting rods movably inserted into the positioning tool, the edge of the correction disc is provided with a plurality of clamping grooves, one side of the correction disc is provided with a set of transmission frames, the bottom of each transmission frame is provided with a movable telescopic rod, the movable telescopic rod is rotationally arranged in the clamping groove, and the top of the correction disc is provided with a positioning groove used for butt joint of a cast workpiece; compared with the prior art, the cast workpiece can be positioned and clamped through the calibration frame, so that the cast workpiece is loaded and limited by the calibration frame, the workpiece is punched and cut, and in the unloading process, metal scraps and the like are manually reciprocally guided out of the positioning groove and remain in the positioning groove, so that the metal scraps and the like enter the clamping box along the chip removal groove and are conveniently uniformly treated.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment technology, specifically to a workpiece auxiliary straightening stamping device. Background Technology

[0002] Stamping equipment includes various forms such as pneumatic, hydraulic, pneumatic-hydraulic booster, and mechanical transmission. Regardless of the type of stamping equipment, various safety measures must be taken to ensure the personal safety of users during operation.

[0003] The stamping industry still relies heavily on simple manual operations, especially when handling small workpieces with fingers. Small parts can experience positioning issues, with slight offsets at the bottom that are not immediately noticeable to the naked eye. This can affect subsequent processes such as punching, particularly for parts requiring assembly where dimensional accuracy is critical. Any offset can disrupt the assembly process. Furthermore, waste generated during stamping requires regular maintenance and cleaning; otherwise, it can become stuck in the locating groove, causing positioning misalignment. Limiting failure during processing can lead to mold collisions or parts flying, resulting in injury or equipment damage. Therefore, we propose a workpiece-assisted straightening stamping device to address these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a workpiece auxiliary straightening stamping device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a workpiece auxiliary straightening stamping device, comprising,

[0006] The punch press body has a positioning plate on its base, a positioning fixture on the top of the positioning plate, a straightening plate on the top of the positioning fixture, a plurality of arc-shaped insert rods that are movably inserted into the positioning fixture at the bottom of the straightening plate, a plurality of slots on the edge of the straightening plate, a set of transmission frames on one side of the straightening plate, and a movable telescopic rod at the bottom of the transmission frame, which is rotatably disposed in the slot.

[0007] The top of the straightening disc is provided with a positioning groove for docking the casting workpiece. A calibration frame is provided between the transmission frames. The calibration frame is used for limiting and calibrating the casting workpiece. The front end of the calibration frame is provided with a pair of hollow frames. The hollow frames are respectively locked onto the outer surface of the extension shaft of the casting workpiece. When the casting workpiece needs to be punched, the calibration frame between the transmission frames can be pulled outward, and the extension shaft of the casting workpiece can be inserted between the wear-resistant baffles. The extension shaft can also be set parallel to the pad. At this time, the casting workpiece can be pushed above the positioning groove and can move under the action of the rotating telescopic rod, so that its bottom fits into the inside of the positioning groove. This allows for rapid limiting and calibration of the casting workpiece, reducing the possibility of tilting or shifting during the calibration process, which would affect the quality of subsequent punching.

[0008] Preferably, the positioning fixture has a snap-fit ​​groove, and the bottom of the straightening disc is equipped with a buffer shaft inserted into the snap-fit ​​groove to reduce vibration generated during the buffer cutting process.

[0009] The bottom of the positioning groove is inclined outward and the edge has multiple sets of chip removal grooves. A horizontal plate is installed on the top of the positioning groove for auxiliary support of the casting workpiece. Through the linkage design of the buffer shaft and the snap-fit ​​groove at the bottom of the straightening plate, and the movable setting of the arc-shaped plug rod, the punching vibration energy is effectively absorbed. At the same time, the annular snap-fit ​​box set on the top of the buffer shaft can form a chip flow channel with the chip removal groove, and collect metal chips simultaneously during the shock absorption process.

[0010] Preferably, the top of the straightening disc has multiple symmetrically arranged docking slots, the inside of which is used to insert a support plate, and the support plate is used to abut against the bottom of the casting workpiece to ensure the stability of the equipment clamping.

[0011] Preferably, the top outer wall of the buffer shaft is fitted with multiple snap-fit ​​boxes arranged in a ring shape. The snap-fit ​​boxes are positioned corresponding to the chip discharge groove and are used for auxiliary collection of metal chips. They can collect the discharged metal chips and facilitate subsequent unified cleaning and maintenance.

[0012] Preferably, a telescopic shaft is inserted inside the transmission frame, the telescopic shaft is hinged to both sides of the calibration frame, a set of limiting plates is provided at the front end of the calibration frame, and the hollow frame is respectively installed on the corresponding limiting plates;

[0013] The hollow frame has a sliding rod inside the movable bracket, and a rotating shaft is provided on the outside of the sliding rod. The top movable bracket of the hollow frame has a limiting end block. The limiting end block is used to limit the position of the sliding rod and the rotating shaft. The position of the limiting end block can be adjusted according to different types of casting workpieces. Based on different extension shaft lengths, the corresponding clamping position can be adjusted, thereby further ensuring the stability of the equipment clamping.

[0014] Preferably, a bent docking plate is fitted on the outer wall of the rotating shaft. The docking plate moves with the rotating shaft. The outer wall of the docking plate is provided with a reset groove into which a telescopic plate is inserted. A compression spring is provided at the bottom of the reset groove. One end of the telescopic plate is hook-shaped and a rotating roller is rotatably mounted inside. The rotating rollers are symmetrically arranged.

[0015] The rotating roller is equipped with buffer rings at both ends, and wear-resistant baffles are movably clamped on the outer side of the buffer rings. The wear-resistant baffles are arc-shaped and abut against both ends of the extension shaft of the casting workpiece for auxiliary clamping. The casting workpiece can be positioned and clamped by the calibration frame. Compared with the traditional manual feeding, the casting workpiece can be limited by the calibration frame and punched, which can reduce the safety hazards in the processing.

[0016] Preferably, both ends of the limiting end block are fixedly connected with welding plates, the welding plates are arranged symmetrically in pairs and a tension shaft is inserted between the welding plates on both sides, and a movable pad is movably locked on the tension shaft.

[0017] The bottom of the movable pad is provided with multiple rectangular grooves, and the inside of the rectangular grooves is used to hold the pad plate. One end of the cast workpiece can abut against the bottom of the pad plate to assist in leveling and reduce the possibility of displacement during the limiting process. With the cooperation of the movable pad, it can play an auxiliary role in correction and leveling, and ensure the accuracy of equipment processing.

[0018] Preferably, the calibration rack has a connecting plate at the rear end, and a touch sensor is provided on the inner wall of the connecting plate. The touch sensor group integrates pressure sensing, and triggers electronic locking in case of abnormal vibration or misoperation of the equipment, thereby reducing safety hazards during equipment use.

[0019] Preferably, the punch press body is provided with a punching head, and the punching head is provided with a slot for installing a corresponding punching tool.

[0020] Preferably, the casting workpiece has a connecting pipe inside, which needs to be punched and cleaned to punch the casting workpiece so that it can be accurately assembled with other accessories.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention can position and clamp the casting workpiece using a calibration frame. Compared with the traditional manual feeding, the calibration frame can limit the feeding of the casting workpiece, which is safer and more stable. The workpiece is punched and cut. During the unloading process, the manual reciprocating action removes metal chips and other residues from the positioning groove, allowing them to enter the clip box along the chip removal groove for easy subsequent unified processing.

[0023] 2. The present invention effectively absorbs punching vibration energy by linking the buffer shaft and the snap-fit ​​groove at the bottom of the correction disc with the movable setting of the arc-shaped plug rod. At the same time, the annular snap-fit ​​box set at the top of the buffer shaft can form a chip flow channel with the chip discharge groove, and collect metal chips simultaneously during the shock absorption process.

[0024] 3. The present invention forms a three-dimensional chip removal network by using the inclined angle at the bottom of the positioning groove in combination with the evenly distributed chip removal grooves, which improves the efficiency of metal chip removal. The replaceable horizontal plate is equipped with a rubber tube assembly, which not only realizes the self-adaptive support of the workpiece, but also reduces the amount of metal chips remaining in the connecting pipe of the casting workpiece by means of the unblocking effect of the rubber tube.

[0025] 4. This invention integrates pressure sensing through a touch sensor group, triggering electronic locking in the event of abnormal vibration or misoperation of the equipment, thereby reducing safety hazards during equipment use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a partial cross-sectional view of the punch press of the present invention;

[0028] Figure 3 This is a schematic diagram of the positioning tooling structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the bottom structure of the correction disc of the present invention;

[0030] Figure 5 This is a schematic diagram of the transmission frame structure on one side of the present invention;

[0031] Figure 6 For the present invention Figure 5 Enlarged view of a portion of point A in the middle;

[0032] Figure 7 This is a schematic diagram of the structure of the casting workpiece of the present invention;

[0033] In the diagram: 1. Punch press body; 2. Positioning plate; 3. Positioning fixture; 4. Transmission frame; 5. Casting workpiece; 11. Punching head; 31. Snap-fit ​​groove; 32. Straightening disc; 321. Buffer shaft; 33. Positioning groove; 34. Chip removal groove; 35. Butt joint groove; 36. Snap-fit ​​box; 41. Telescopic shaft; 42. Calibration frame; 421. Limiting plate; 43. Hollow frame; 44. Limiting end block; 45. Welding piece; 451. Movable pad; 46. Rotating shaft; 461. Butt joint plate; 47. Telescopic plate; 471. Rotating roller; 48. Wear-resistant baffle; 51. Connecting pipe. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-7 This invention provides a technical solution: a workpiece auxiliary straightening stamping device, comprising,

[0036] The punch press body 1 has a positioning plate 2 on its base, a positioning fixture 3 on the top of the positioning plate 2, a straightening plate 32 on the top of the positioning fixture 3, a number of arc-shaped insert rods that are movably inserted into the positioning fixture 3 at the bottom of the straightening plate 32, a number of slots on the edge of the straightening plate 32, a set of transmission frame 4 on one side of the straightening plate 32, a movable telescopic rod at the bottom of the transmission frame 4, and the movable telescopic rod is rotatably set inside the slot.

[0037] The top of the straightening disc 32 is provided with a positioning groove 33 for docking the casting workpiece 5. A calibration frame 42 is provided between the transmission frames 4. The calibration frame 42 is used for the limit calibration of the casting workpiece 5. The front end of the calibration frame 42 is provided with a pair of hollow frames 43. The hollow frames 43 are respectively locked onto the outer extension shaft surface of the casting workpiece 5. When the casting workpiece 5 needs to be punched, it can pull the calibration frame 42 between the transmission frames 4 to move outward, and can insert the extension shaft of the casting workpiece 5 between the wear-resistant baffles 48. The extension shaft can also be set parallel to the pad. At this time, the casting workpiece 5 can be pushed above the positioning groove 33 and can move under the action of the rotating telescopic rod, so that its bottom fits into the inside of the positioning groove 33. It can quickly limit the calibration of the casting workpiece 5 and reduce the tilting and displacement during the calibration process, which would affect the quality of subsequent punching.

[0038] like Figure 3 As shown, in order to reduce the impact of equipment vibration during the punching process, the positioning fixture 3 is provided with a snap-fit ​​groove 31, and the bottom of the straightening plate 32 is equipped with a buffer shaft 321 inserted into the snap-fit ​​groove 31 to reduce the vibration generated during the punching process. The buffer shaft 321 can absorb energy and reduce the defect rate caused by punching vibration during the processing.

[0039] The bottom of the positioning groove 33 is inclined outward and the edge is provided with multiple sets of chip removal grooves 34, which can allow metal chips to be discharged along the inclined chip removal grooves 34. During the processing, the chip removal grooves 34 can be cleaned at intervals. Compared with the traditional sealing groove, it can effectively improve the cleaning efficiency of the equipment, reduce downtime maintenance time, and improve the overall processing efficiency. A horizontal plate is installed on the top of the positioning groove 33 for auxiliary support of the casting workpiece 5. The horizontal plate can abut against the bottom of the casting workpiece 5 and play an auxiliary support role. The horizontal plate can be replaced according to different models of casting workpiece 5 to maintain the stability of subsequent processing.

[0040] Additionally, it should be noted that a rubber tube can be installed on the top of the horizontal plate to correspond with the connecting pipe 51, facilitating subsequent correction and positioning. After the casting workpiece 5 is punched, the operator pulls the transmission frame 4 to lift and move it a certain distance. At this time, the rubber tube has not completely detached from the inside of the connecting pipe 51. With the small reciprocating motion of the calibration frame 42, it can push the debris inside the connecting pipe 51, playing an auxiliary role in clearing the blockage and facilitating the subsequent discharge of metal debris. This allows the debris to be transported along the chip discharge groove 34 for unified collection and processing.

[0041] like Figure 3 As shown, in order to ensure that the casting workpiece 5 is in a horizontal state during the calibration and positioning process, the top of the straightening disc 32 is provided with multiple symmetrically arranged docking slots 35. The docking slots 35 are used to insert support plates, and the support plates are used to abut against the bottom of the casting workpiece 5. They can be adjusted according to different models of casting workpiece 5. The top of the support plate is provided with a rubber strip, which is used to abut against the inclined edge of the bottom of the casting workpiece 5 to play an auxiliary support role.

[0042] like Figure 3 and Figure 4 As shown, in order to reduce the impact of metal shavings accumulation on the normal processing operation of the equipment, multiple snap-fit ​​boxes 36 are spliced ​​into a ring shape on the top outer wall of the buffer shaft 321. The snap-fit ​​boxes 36 are positioned corresponding to the chip discharge groove 34 and are used for auxiliary collection of metal shavings. During the operation of the equipment, the metal shavings can be guided into the snap-fit ​​boxes 36 along the inclined chip discharge groove 34. In the subsequent cleaning process, excess metal shavings can also be guided into them. Regular cleaning and maintenance can be carried out to recycle the metal shavings inside. Compared with the traditional air blowing treatment, which causes metal shavings to fly and still requires secondary cleaning, this method can reduce the labor intensity of subsequent cleaning.

[0043] like Figure 5 As shown, the transmission frame 4 can clamp the casting workpiece 5, making it easy to transport it to the positioning groove 33 later. A telescopic shaft 41 is inserted inside the transmission frame 4. The telescopic shaft 41 is hinged to both sides of the calibration frame 42. A set of limiting plates 421 is provided at the front end of the calibration frame 42. The hollow frame 43 is installed on the corresponding limiting plates 421.

[0044] The hollow frame 43 has a sliding rod inside the movable bracket, and a rotating shaft 46 is rotatably provided on the outside of the sliding rod. The top movable bracket of the hollow frame 43 has a limiting end block 44, which is used to limit the position of the sliding rod and the rotating shaft 46. It can be adjusted according to different types of casting workpieces 5. When the extension shaft is short, the telescopic plate 47 at the bottom can clamp the two ends of the extension shaft relative to each other under the action of the limiting end block 44. When the extension shaft is long, the telescopic plate 47 can clamp the two ends of the extension shaft in an alternating manner, which can ensure the stability of the positioning and reduce the unexpected situation of deviation during subsequent feeding.

[0045] like Figure 5 and Figure 6 As shown, in order to ensure the stability of clamping, a bent docking plate 461 is clamped on the outer wall of the rotating shaft 46. The docking plate 461 moves with the rotating shaft 46. The outer wall of the docking plate 461 is provided with a reset groove in which a telescopic plate 47 is inserted, and a compression spring is provided at the bottom of the reset groove. One end of the telescopic plate 47 is hook-shaped and a rotating roller 471 is rotatably mounted inside. The rotating rollers 471 are symmetrically arranged.

[0046] The rotating roller 471 is equipped with buffer rings at both ends, and wear-resistant baffles 48 are movably clamped on the outer side of the buffer rings. The wear-resistant baffles 48 are arc-shaped and abut against both ends of the extension shaft of the casting workpiece 5 for auxiliary clamping. The wear-resistant baffles 48 can abut against the casting workpiece 5 and play a clamping role. They can be replaced after long-term use to reduce the situation where wear leads to a decrease in stability and requires frequent maintenance.

[0047] like Figure 6 As shown, in order to reduce the tilting of the casting workpiece 5, welding plates 45 are fixedly connected to both ends of the limiting end block 44. The welding plates 45 are arranged symmetrically in pairs, and a tension shaft is inserted between the welding plates 45 on both sides. A movable pad 451 is movably locked on the tension shaft.

[0048] The bottom of the movable pad 451 is provided with multiple rectangular grooves, and the inside of the rectangular grooves is used to hold the pad plate. One end of the casting workpiece 5 can abut against the bottom of the pad plate to assist in leveling and reduce the occurrence of displacement during the limiting process. It can work with the wear-resistant baffle 48 to clamp and limit the extension shaft of the casting workpiece 5 from multiple angles. It can also use the pad plate to adhere to the surface of the extension shaft to play a leveling role.

[0049] The calibration rack 42 has a connecting plate at the rear end, and a touch sensor is installed on the inner wall of the connecting plate. Under the action of the touch sensor, the equipment can be locked, reducing the possibility of accidental start-up of the equipment due to operator touch during subsequent unloading, and effectively reducing unexpected situations during use.

[0050] The punch press body 1 is equipped with a punching head 11, which has a slot for installing corresponding punching tools, and can process casting workpieces 5 of different models.

[0051] like Figure 7 As shown, the casting workpiece 5 has a connecting pipe 51 inside, and the connecting pipe 51 needs to be punched and cleaned.

[0052] Working principle: First, when the casting workpiece 5 needs to be punched, the calibration frame 42 between the transmission frame 4 can be pulled outward, allowing the extension shaft of the casting workpiece 5 to be inserted between the wear-resistant baffles 48. The extension shaft can also be set parallel to the pad. At this time, the casting workpiece 5 can be pushed above the positioning groove 33 and can move under the action of the rotating telescopic rod, so that its bottom is attached to the inside of the positioning groove 33. This allows for rapid limit calibration of the casting workpiece 5, reducing the possibility of tilting or shifting during the calibration process, which would affect the quality of subsequent punching. During the calibration and clamping process, as the operator pulls the calibration frame 42 outward, the position of the limit end block 44 can also be adjusted. This can be adjusted according to different models of casting workpiece 5. When the extension shaft is short, the telescopic plate 47 at the bottom can clamp the two ends of the extension shaft relative to each other under the action of the limit end block 44. When the extension shaft is long, the telescopic plate 47 can clamp the two ends of the extension shaft in an alternating manner, ensuring the stability of the positioning and reducing the possibility of unexpected shifts during subsequent feeding.

[0053] Then, after clamping one end of the casting workpiece 5, it can be pushed into the positioning groove 33. With the downward movement of the rotating telescopic rod, the casting can be pressed against the top of the horizontal plate. The support plates inserted in the docking grooves 35 on both sides can also press against the bottom of the casting workpiece 5, playing an auxiliary support role, so that the casting workpiece 5 is in a horizontal state, which allows the punching head 11 to move and punch the inside of the connecting pipe 51, and punch out the excess metal chips in the connecting pipe 51.

[0054] Finally, after completing the punching process of the casting workpiece 5, the operator can use one hand to engage the touch sensor inside the connecting plate to lift and stretch the casting workpiece 5 outward under the action of the rotating telescopic rod. The touch sensor can also lock the equipment, reducing the possibility of accidental start-up due to operator misoperation during subsequent unloading. This effectively reduces unexpected situations during use, and the casting workpiece 5 can be loaded and unloaded away from the punching area, improving processing stability. During loading and unloading, the operator can use a brush at fixed intervals to clean the inside of the positioning groove 33, guiding the accumulated metal chips into the receiving box 36 along the chip discharge groove 34 for subsequent unified cleaning.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A workpiece auxiliary straightening stamping device, characterized in that: include, The punch press body (1) has a positioning plate (2) on its base. The top of the positioning plate (2) has a positioning fixture (3). The top of the positioning fixture (3) has a straightening plate (32). The bottom of the straightening plate (32) has multiple arc-shaped inserts that are movably inserted into the positioning fixture (3). The edge of the straightening plate (32) has multiple slots. One side of the straightening plate (32) has a set of transmission frames (4). The bottom of the transmission frame (4) has a movable telescopic rod, and the movable telescopic rod is rotatably set inside the slot. The top of the straightening plate (32) is provided with a positioning groove (33) for docking with the casting workpiece (5), and a calibration frame (42) is provided between the transmission frames (4). The calibration frame (42) is used for the limit calibration of the casting workpiece (5). A pair of hollow frames (43) are provided at the front end of the calibration frame (42). The hollow frames (43) are respectively clamped on the extension shaft surface on the outside of the casting workpiece (5). The transmission frame (4) is equipped with a telescopic shaft (41), which is hinged to both sides of the calibration frame (42). The calibration frame (42) has a set of limiting plates (421) at its front end, and the hollow frame (43) is installed on the corresponding limiting plates (421). The hollow frame (43) is equipped with a sliding rod inside, and a rotating shaft (46) is provided on the outside of the sliding rod. The top of the hollow frame (43) is equipped with a limiting end block (44), which is used to limit the position of the sliding rod and the rotating shaft (46). The outer wall of the rotating shaft (46) is fitted with a bent docking plate (461). The docking plate (461) moves with the rotating shaft (46). The outer wall of the docking plate (461) is provided with a reset groove for inserting the telescopic plate (47). A compression spring is provided at the bottom of the reset groove. One end of the telescopic plate (47) is hook-shaped and a rotating roller (471) is rotatably provided inside. The rotating roller (471) is symmetrically arranged. The rotating roller (471) is equipped with buffer rings at both ends, and wear-resistant baffles (48) are movably clamped on the outer side of the buffer rings. The wear-resistant baffles (48) are arc-shaped and abut against both ends of the extension shaft of the casting workpiece (5) for auxiliary clamping. Both ends of the limiting end block (44) are fixedly connected with welding pieces (45). The welding pieces (45) are arranged symmetrically in pairs and a tension shaft is inserted between the welding pieces (45) on both sides. A movable pad (451) is movably locked on the tension shaft. The movable pad (451) has multiple rectangular grooves at the bottom, and the inside of the rectangular grooves is used to hold the pad plate. One end of the cast workpiece (5) can abut against the bottom of the pad plate to assist in leveling and reduce the occurrence of displacement during the limiting process.

2. The workpiece auxiliary straightening stamping device according to claim 1, characterized in that: The positioning fixture (3) has a snap-fit ​​groove (31), and the bottom of the straightening disc (32) is equipped with a buffer shaft (321) inserted into the snap-fit ​​groove (31) to reduce the vibration generated during the buffer cutting process. The bottom of the positioning groove (33) is inclined outward and multiple sets of chip removal grooves (34) are opened on the edge. A horizontal plate is installed on the top of the positioning groove (33) for auxiliary support of the casting workpiece (5).

3. The workpiece auxiliary straightening stamping device according to claim 1, characterized in that: The top of the straightening disc (32) has a plurality of symmetrically arranged docking slots (35), the docking slots (35) are used to insert support plates, and the support plates are used to abut against the bottom of the casting workpiece (5).

4. The workpiece auxiliary straightening stamping device according to claim 2, characterized in that: Multiple snap-fit ​​boxes (36) are spliced ​​into a ring shape on the top outer wall of the buffer shaft (321). The snap-fit ​​boxes (36) are positioned corresponding to the chip discharge groove (34) and are used for auxiliary collection of metal chips.

5. The workpiece auxiliary straightening stamping device according to claim 1, characterized in that: The calibration frame (42) has a connecting plate at its rear end, and a touch sensor is provided on the inner wall of the connecting plate.

6. The workpiece auxiliary straightening stamping device according to claim 1, characterized in that: The punch press body (1) is provided with a punching head (11), and the punching head (11) is provided with a slot for installing the corresponding punching tool.

7. The workpiece auxiliary straightening stamping device according to claim 1, characterized in that: The casting workpiece (5) has a connecting pipe (51) inside.

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