Accessory punching equipment for automobile accessory production

Abstract

The invention provides accessory punching equipment for automobile accessory production, and relates to the technical field of punching equipment.The accessory punching equipment comprises a punching base and a vertical shaft driving frame, the vertical shaft driving frame is fixedly installed at the side end of the punching base, and a fixing mechanism for fixing a workpiece conveniently is arranged on the punching base; the vertical shaft driving frame is provided with a punching mechanism facilitating punching of a workpiece, the fixing mechanism comprises a fixing vertical plate, a push plate, an L-shaped vertical plate and an ejector rod, and the punching mechanism comprises an axial sliding block, a transverse rod and a mounting frame. By arranging a pressure sensor, a servo motor and the pressure sensor, a pressure signal corresponding to the thickness of an automobile part workpiece can be sensed in real time, the servo motor drives a transmission structure to operate after receiving the signal, and through meshing transmission of a rack and a gear, a rotating shaft and a mounting frame are driven to rotate; and therefore, switching between the first punching head and the second punching head is achieved, and the equipment can automatically select the matched punching head according to the actual thickness of the automobile part.

Description

Technical Field

[0001] This invention belongs to the field of punching equipment technology, and more specifically, relates to a punching equipment for automotive parts production. Background Technology

[0002] Automotive parts are a general term for all kinds of components and accessories that make up a car. They cover a wide range, including stamped parts related to the body structure, frame connecting parts, door components, engine accessories and transmission parts for the power system, suspension components and braking components for the chassis system, as well as interior parts, electrical system accessories, and many other types. Automotive parts punching equipment is one of the key pieces of equipment in the automotive parts processing process. Its core function is to process through holes, blind holes or irregular holes that meet the specifications on the surface of various parts according to the design requirements and assembly needs of automotive parts.

[0003] The Chinese patent publication number is CN120734185A, which discloses a punching equipment for automobile parts production. This invention utilizes an identification and correction feeding component to place multiple irregularly shaped square tubes at a fixed angle on the workbench and perform punching operations in a regular manner. This avoids the situation where the irregularly shaped square tubes are transported from the previous process with inconsistent orientations and are relatively messy, making it difficult for the punching head to accurately punch the curved surface of each irregularly shaped square tube.

[0004] Existing automotive parts punching equipment has the following disadvantages: 1. Existing automotive parts punching equipment has a relatively simple structure. For automotive parts of different thicknesses and specifications, operators need to manually change the corresponding punching heads. The change process requires stopping the machine before disassembling and installing the punch, which is cumbersome, consumes a lot of manpower and time, and affects the overall efficiency of automotive parts punching processing. 2. Existing automotive parts punching equipment lacks the function of automatically switching punch heads. It cannot automatically adapt the appropriate punch head according to the actual thickness of the automotive parts. It relies on manual judgment of the part thickness and selection of punch head, which not only increases the difficulty of operation, but may also lead to mismatch between punch head and part thickness due to human judgment error, thus affecting the punching effect.

[0005] In view of this, we have studied and improved the existing structure and its shortcomings, and provided a punching equipment for automotive parts production, in order to achieve a practical purpose. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a punching device for automotive parts production, thereby resolving these issues.

[0007] A punching machine for automotive parts production includes a punching base and a vertical shaft drive frame. The vertical shaft drive frame is fixedly installed on the side end of the punching base. The punching base is provided with a fixing mechanism for facilitating workpiece fixation. The vertical shaft drive frame is provided with a punching mechanism for facilitating punching the workpiece. The fixing mechanism includes a fixed vertical plate, a push plate, an L-shaped vertical plate, and a push rod. The punching mechanism includes an axial slider, a crossbar, and a mounting bracket. Two fixed vertical plates are fixedly installed on the upper end of the punching base. Two push plates are respectively located on the side ends of the opposite faces of the two fixed vertical plates. Two L-shaped vertical plates are respectively fixedly installed on the upper ends of the two push plates. The top rods are located at the lower ends of the two L-shaped vertical plates. The axial slider is fixedly installed on the side end of the vertical shaft drive frame. The crossbar is located at the lower end of the axial slider. The mounting bracket is located on the inner side wall of the axial slider. A punching worktable is fixedly installed on the upper end of the punching base. The punching worktable is provided with a clearance groove. The two fixed vertical plates are located on both sides of the punching worktable. A guide rod is fixedly installed between the two fixed vertical plates. A mounting groove is opened through the side ends of both fixed vertical plates. The same double-ended screw is rotatably installed on the inner side wall of both mounting grooves. The guide rod and the double-ended screw are both located on the clearance groove of the punching worktable. Inside the groove, movable uprights are fixedly installed at the lower ends of both push plates. Each of the two movable uprights has a first threaded groove and a cylindrical sliding groove extending through its side end. The two movable uprights are slidably mounted on guide rods via the two cylindrical sliding grooves. A double-ended screw is threadedly mounted on the inner wall of the two first threaded grooves. Clamping plates are fixedly installed at the side ends of both push plates. Rectangular sliding grooves extend through the side ends of both L-shaped uprights. Pressure sensors are fixedly installed at the lower ends of both L-shaped uprights. T-shaped sliders are fixedly installed at the side ends of both push rods. The two T-shaped sliders are slidably mounted in the two rectangular sliding grooves. The inner wall has a pressure plate at the upper end of the top rod, a spring fixedly installed between the top rod and the pressure plate, the end of the spring attached to the lower end of the pressure sensor, a clearance groove through the upper end of the axial slider, a servo motor fixedly installed at the upper end of the axial slider, a transmission rod fixedly installed at the output end of the servo motor, the transmission rod rotatably installed on the inner wall of the clearance groove, a threaded rod fixedly installed at the lower end of the transmission rod, a second threaded groove through the upper end of the crossbar, the threaded rod rotatably installed on the inner wall of the second threaded groove, and two telescopic rods fixedly installed between the crossbar and the axial slider.

[0008] Preferably, two side bars are fixedly installed at the side end of the crossbar, and a rack is fixedly installed at the upper end of each of the two side bars.

[0009] Preferably, a rotating shaft is fixedly installed on both ends of the mounting bracket, and the two rotating shafts are respectively rotatably installed through the two ends of the axial slider. A gear is fixedly installed on the circumferential ends of the two rotating shafts, and a second punch head and a first punch head are respectively fixedly installed on the upper and lower ends of the mounting bracket.

[0010] Compared with the prior art, the present invention has the following beneficial effects: In this invention, a double-ended screw, a movable upright, a clamping plate, a top rod, a pressure plate, a spring, and a pressure sensor are used in conjunction. Rotating the double-ended screw drives the movable upright to move the clamping plate to clamp automotive parts of different sizes. Simultaneously, the pressure plate below the top rod comes into contact with the workpiece, and the pressure is transmitted to the pressure sensor through the compression of the spring, thus simultaneously detecting the workpiece thickness. This design, which performs clamping and detection simultaneously, eliminates the need for an additional thickness detection step. Furthermore, the structure of the double-ended screw driving the clamping plate can adapt to the clamping requirements of automotive parts of different sizes, improving both clamping adaptability and processing efficiency. This provides support for efficient punching of automotive parts and makes the entire processing flow more compact and orderly.

[0011] In this invention, a double-ended screw, a movable upright, a clamping plate, a top rod, a pressure plate, a spring, and a pressure sensor are used in conjunction. Rotating the double-ended screw drives the movable upright to move the clamping plate to clamp automotive parts of different sizes. Simultaneously, the pressure plate below the top rod comes into contact with the workpiece, and the pressure is transmitted to the pressure sensor through the compression of the spring, thus simultaneously detecting the workpiece thickness. This design, which performs clamping and detection simultaneously, eliminates the need for an additional thickness detection step. Furthermore, the structure of the double-ended screw driving the clamping plate can adapt to the clamping requirements of automotive parts of different sizes, improving both clamping adaptability and processing efficiency. This provides support for efficient punching of automotive parts and makes the entire processing flow more compact and orderly.

[0012] In this invention, a pressure sensor is used in conjunction with a servo motor, a threaded rod, a rack, and a gear. The pressure sensor automatically detects the workpiece thickness and triggers a signal, eliminating the need for operators to manually judge the thickness, disassemble the old punch, and install the new punch. After receiving the signal, the servo motor drives the rack to move through the threaded engagement of the threaded rod and the crossbar, which in turn drives the gear to rotate, thus achieving punch switching. This automatic detection and switching method reduces manual operation steps, avoids waiting time during manual punch replacement, makes the punching process of automotive parts smoother, improves the efficiency of punching processing of automotive parts, and helps to accelerate the processing progress of batch parts.

[0013] In this invention, a pressure sensor is used in conjunction with a servo motor, a threaded rod, a rack, and a gear. The pressure sensor automatically detects the workpiece thickness and triggers a signal, eliminating the need for operators to manually judge the thickness, disassemble the old punch, and install the new punch. After receiving the signal, the servo motor drives the rack to move through the threaded engagement of the threaded rod and the crossbar, which in turn drives the gear to rotate, thus achieving punch switching. This automatic detection and switching method reduces manual operation steps, avoids waiting time during manual punch replacement, makes the punching process of automotive parts smoother, improves the efficiency of punching processing of automotive parts, and helps to accelerate the processing progress of batch parts.

[0014] In this invention, a rotating shaft, a mounting bracket, a first punch head, and a second punch head are provided. The mounting bracket can rotate around the rotating shaft. When one punch head is in use, the other unused punch head will rotate with the mounting bracket to an upward-facing position. This layout allows the idle punch head to be kept away from the processing area of ​​the punching worktable, reducing contact with impurities such as iron filings and oil generated during processing. This protects the punch head, maintains its cleanliness and cutting edge condition, extends its service life, and ensures the stability of the punching quality of automotive parts, ensuring that the hole shape of subsequently processed parts remains consistent. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the punched base of the present invention; Figure 2 This is a schematic diagram of the vertical shaft drive frame of the present invention; Figure 3 This is an exploded view of the vertical shaft drive frame of the present invention; Figure 4 This is a schematic diagram of the axial slider of the present invention; Figure 5 This is a schematic diagram of the mounting bracket of the present invention; Figure 6 This is an exploded view of the mounting bracket of the present invention; Figure 7 This is a schematic diagram of the punching worktable of the present invention; Figure 8 This is a schematic diagram of the structure of the fixed upright plate of the present invention; Figure 9 This is a schematic diagram of the structure of the L-shaped vertical plate of the present invention; Figure 10 This is a schematic diagram of the structure of the clamping plate of the present invention.

[0016] In the diagram, the correspondence between component names and attached drawing numbers is as follows: 1. Punching base; 11. Punching worktable; 12. Vertical spindle drive frame; 2. Fixed vertical plate; 21. Guide rod; 22. Mounting circular groove; 23. Double-ended screw; 3. Push plate; 31. Movable vertical rod; 32. First threaded groove; 33. Cylindrical slide groove; 34. Clamping plate; 4. L-shaped vertical plate; 41. Rectangular slide groove; 42. Pressure sensor; 5. Top rod; 51. T-shaped slider; 52. Pressure plate; 53. Spring; 6. Axial slider; 61. Clearance circular groove; 62. Servo motor; 63. Transmission rod; 64. Threaded rod; 7. Crossbar; 71. Second threaded groove; 72. Telescopic rod; 73. Side rod; 74. Rack; 8. Mounting bracket; 81. Rotating shaft; 82. Gear; 83. First punch head; 84. Second punch head. Detailed Implementation

[0017] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0018] Please see Figure 1 - Figure 10 This invention provides a punching equipment for automotive parts production, including a punching base 1 and a vertical shaft drive frame 12. The vertical shaft drive frame 12 is fixedly installed on the side end of the punching base 1. The punching base 1 is provided with a fixing mechanism for fixing the workpiece, and the vertical shaft drive frame 12 is provided with a punching mechanism for punching the workpiece. The fixing mechanism includes a fixing plate 2, a push plate 3, an L-shaped plate 4, and a top rod 5. The punching mechanism includes an axial slider 6, a crossbar 7, and a mounting bracket 8. When punching automotive parts during production, the operator first places the automotive parts to be punched stably on the surface of the punching worktable 11 of the punching base 1, ensuring that the part to be punched is aligned with the working area of ​​the subsequent punching head. Subsequently, the workpiece is stably clamped by the fixing plate 2 and the workpiece thickness is accurately detected by the pressure sensor 42. Then, the appropriate punching head is automatically switched to complete the processing. Finally, after the punching operation is completed, the clamping structure is released to remove the processed automotive parts. Two fixed upright plates 2 are fixedly installed on the upper end of the punching base 1. Two push plates 3 are located on the side ends of the opposite faces of the two fixed upright plates 2. Two L-shaped upright plates 4 are fixedly installed on the upper ends of the two push plates 3. Two push rods 5 are located on the lower ends of the two L-shaped upright plates 4. An axial slider 6 is fixedly installed on the side end of the vertical shaft drive frame 12. A crossbar 7 is located on the lower end of the axial slider 6. A mounting bracket 8 is located on the inner side wall of the axial slider 6. A punching worktable 11 is fixedly installed on the upper end of the punching base 1. The punching worktable 11 is provided with a clearance groove. Two fixed upright plates 2 are located on both sides of the punching worktable 11. A guide rod 21 is fixedly installed between the two fixed upright plates 2. Both fixed upright plates 2 have through-holes in the side ends of the mounting grooves 22. The same double-ended screw 23 is rotatably mounted on the inner side wall of both mounting grooves 22. The guide rod 21 and the double-ended screw 23 are both located in the clearance groove on the punching worktable 11. The double-ended screw 23 is rotatably mounted in the mounting groove 22 of the fixed upright plate 2. When the operator manually rotates the end of the double-ended screw 23, the first threaded groove 32 opened on the movable upright rod 31 of the push plate 3 meshes with the threaded structure of the double-ended screw 23. The movable upright rod 31 is sleeved on the outside of the guide rod 21 of the fixed upright plate 2. The guide rod 21 provides axial guidance for the movable upright rod 31 to prevent it from shifting laterally during movement. The lower ends of the two push plates 3 are fixedly equipped with movable uprights 31. The side ends of the two movable uprights 31 are provided with first threaded grooves 32 and cylindrical sliding grooves 33. The two movable uprights 31 are slidably mounted on the guide rods 21 through the two cylindrical sliding grooves 33 respectively. The double-ended screw 23 is rotatably mounted on the inner side wall of the two first threaded grooves 32. The side ends of the two push plates 3 are fixedly equipped with clamping plates 34. The double-ended screw 23 is rotatably mounted in the mounting circular groove 22 of the fixed upright plate 2. When the operator manually rotates the end of the double-ended screw 23, the first threaded groove 32 on the movable uprights 31 of the push plate 3 meshes with the threaded structure of the double-ended screw 23. The movable uprights 31 are sleeved on the outside of the guide rods 21 of the fixed upright plate 2. The guide rods 21 provide axial guidance for the movable uprights 31 to prevent them from shifting laterally during movement. Rectangular grooves 41 are provided through the side ends of both L-shaped vertical plates 4. Pressure sensors 42 are fixedly installed at the lower ends of both L-shaped vertical plates 4. T-shaped sliders 51 are fixedly installed at the side ends of both push rods 5. The two T-shaped sliders 51 are slidably installed on the inner side walls of the two rectangular grooves 41 respectively. A pressure plate 52 is provided at the upper end of the push rod 5. A spring 53 is fixedly installed between the push rod 5 and the pressure plate 52. The end of the spring 53 is attached to the lower end of the pressure sensor 42. Before the clamping plate 34 approaches the workpiece, the user can pull the push rod 5 upward according to the approximate thickness of the automotive part. The T-shaped sliders 51 at the upper end of the push rod 5 are in the rectangular grooves 41 of the L-shaped vertical plates 4. The T-shaped slider 51 slides up and down along the rectangular slide groove 41 to achieve pre-adjustment of the height of the push rod 5, so as to adapt to workpieces with different thickness ranges. After the workpiece is fixed by the clamping plate 34, the user releases the push rod 5. The push rod 5 moves downward under its own weight and the elasticity of the spring 53, so that the pressure plate 52 at the lower end of the push rod 5 is in contact with the upper end of the workpiece. The thickness of the workpiece will form an upward thrust on the pressure plate 52. After the thrust is transmitted to the push rod 5, it causes the spring 53 to compress and deform. As the spring 53 is compressed, the pressure plate 52 transmits the pressure to the pressure sensor 42 installed on the L-shaped vertical plate 4. The pressure sensor 42 monitors the pressure value in real time. An clearance groove 61 is provided through the upper end of the axial slider 6. A servo motor 62 is fixedly installed at the upper end of the axial slider 6. A transmission rod 63 is fixedly installed at the output end of the servo motor 62. The transmission rod 63 is rotatably installed on the inner side wall of the clearance groove 61. A threaded rod 64 is fixedly installed at the lower end of the transmission rod 63. A second threaded groove 71 is provided through the upper end of the crossbar 7. The threaded rod 64 is rotatably installed on the inner side wall of the second threaded groove 71. Two telescopic rods 72 are also fixedly installed between the crossbar 7 and the axial slider 6. Two side rods 73 are fixedly installed on the side end of the mounting bracket 8. A rack 74 is fixedly installed on the upper end of each side rod 73. Rotating shafts 81 are fixedly installed on both sides of the mounting bracket 8. The two rotating shafts 81 are respectively rotatably mounted through the two sides of the axial slider 6. Gears 82 are fixedly installed on the circumferential ends of the two rotating shafts 81. A second punch head 84 and a first punch head 83 are fixedly installed on the upper and lower ends of the mounting bracket 8, respectively. When the detected pressure is within a preset threshold range, the equipment maintains the current punch state and does not trigger a switching action. When the pressure exceeds the preset threshold, the pressure sensor 42 and servo motor 62 send an electrical signal. Upon receiving the signal, the servo motor 62 starts, driving the transmission rod 63 connected to its output end to rotate. One end of the transmission rod 63 is fixedly connected to the threaded rod 64, thereby driving the threaded rod 64 to rotate synchronously. Because the threaded rod 64 is threadedly engaged with the second threaded groove 71 of the crossbar 7, the rotation of the threaded rod 64 will drive the crossbar 7 to move upwards. The telescopic rod 72 provides axial guidance and limitation, and the crossbar 7 drives the side rods 73 fixed at the side end to move upwards. When the side rod 73 moves upward, it drives the rack 74 to move upward. The rack 74 meshes with the gear 82 on the mounting bracket 8. The linear movement of the rack 74 drives the gear 82 to rotate around the rotating shaft 81. The rotating shaft 81 is fixedly connected to the mounting bracket 8, thereby driving the entire mounting bracket 8 to rotate around the rotating shaft 81, realizing the position switching between the first punch head 83 and the second punch head 84 on the mounting bracket 8. After the switching is completed, the equipment starts the punching mechanism, and the punching head adapted to the workpiece thickness performs punching operations on the automotive parts to complete the preset punching processing.

[0019] Working principle: In the first step, when the automotive parts are punched during production, the operator first places the automotive parts to be punched stably on the surface of the punching worktable 11 of the punching base 1, ensuring that the part to be punched is aligned with the working area of ​​the subsequent punching head. Subsequently, the workpiece is stably clamped by the connection structure of the fixed upright plate 2, and the thickness of the workpiece is accurately detected by the pressure sensor 42. Then, the appropriate punching head is automatically switched to complete the processing. Finally, after the punching operation is completed, the clamping structure is released and the processed automotive parts can be removed.

[0020] In the second step, the double-ended screw 23 is rotatably installed in the mounting groove 22 of the fixed upright plate 2. The operator manually rotates the end of the double-ended screw 23. Since the first threaded groove 32 on the movable upright 31 of the push plate 3 meshes with the threaded structure of the double-ended screw 23, and the movable upright 31 is sleeved on the outside of the guide rod 21 of the fixed upright plate 2, the guide rod 21 provides axial guidance for the movable upright 31 to avoid lateral displacement during movement. At the same time, the cylindrical sliding groove 33 on the push plate 3 slides with the corresponding part of the movable upright 31 to further assist the guidance, so that when the double-ended screw 23 rotates, it can synchronously drive the two movable uprights 31 to move closer to each other along the length direction of the guide rod 21. One end of the movable upright 31 is fixedly connected to a clamping plate 34. The two clamping plates 34 move synchronously with the movable upright 31, gradually adhering to the sides of the automotive parts from both sides of the workpiece. The clamping force on both sides achieves stable fixation of the workpiece, preventing the workpiece from shifting or shaking due to force during subsequent punching, and ensuring the stability of the punching operation. This application utilizes a combination of a double-ended screw 23, a movable upright 31, a clamping plate 34, a top rod 5, a pressure plate 52, a spring 53, and a pressure sensor 42. Rotating the double-ended screw 23 drives the movable upright 31 to move the clamping plate 34 to clamp automotive parts of different sizes. Simultaneously, the pressure plate 52 below the top rod 5 comes into contact with the workpiece, and the pressure is transmitted to the pressure sensor 42 through the compression of the spring 53, thus simultaneously detecting the workpiece thickness. This design, which combines clamping and detection simultaneously, eliminates the need for additional thickness detection steps. Furthermore, the structure of the double-ended screw 23 driving the clamping plate 34 can adapt to the clamping requirements of automotive parts of different sizes, improving both clamping adaptability and processing efficiency. This provides support for efficient punching of automotive parts and makes the entire processing flow more compact and orderly.

[0021] Thirdly, before the clamping plate 34 approaches the workpiece, the user can pull the push rod 5 upwards according to the approximate thickness of the automotive parts. The T-shaped slider 51 at the upper end of the push rod 5 slides within the rectangular groove 41 of the L-shaped vertical plate 4. The T-shaped slider 51 moves up and down along the rectangular groove 41 to achieve pre-adjustment of the height of the push rod 5, so as to adapt to workpieces of different thicknesses. After the workpiece is fixed by the clamping plate 34, the user releases the push rod 5. The push rod 5 moves downwards under its own weight and the elasticity of the spring 53, so that the pressure plate 52 at the lower end of the push rod 5 fits against the upper end of the workpiece. The thickness of the workpiece will generate an upward thrust on the pressure plate 52. After this thrust is transmitted to the push rod 5, it causes the spring 53 to compress and deform. As the spring 53 is compressed, the pressure plate 52 transmits the pressure to the pressure sensor 42 installed on the L-shaped vertical plate 4. The pressure sensor 42 monitors the pressure value in real time. When the detected pressure is within the preset threshold range, the equipment maintains the current punch state and does not trigger the switching action; when the pressure exceeds the preset threshold, the pressure is transmitted... Sensor 42 and servo motor 62 send electrical signals. After receiving the signal, servo motor 62 starts and drives the transmission rod 63 connected to its output end to rotate. One end of transmission rod 63 is fixedly connected to threaded rod 64, thereby driving threaded rod 64 to rotate synchronously. Since threaded rod 64 is threadedly engaged with the second thread groove 71 of crossbar 7, the rotation of threaded rod 64 will drive crossbar 7 to move upward. Through telescopic rod 72, it is guided and limited in the axial direction. Crossbar 7 drives side rod 73 fixed at the side end to move upward. The upward movement of side rod 73 drives rack 74 to move upward. Rack 74 meshes with gear 82 on mounting frame 8. The linear movement of rack 74 drives gear 82 to rotate around rotating shaft 81. Rotating shaft 81 is fixedly connected to mounting frame 8, thereby driving the entire mounting frame 8 to rotate around rotating shaft 81, realizing the position switching of first punch head 83 and second punch head 84 on mounting frame 8. After the switching is completed, the equipment starts punching mechanism, and punching head adapted to workpiece thickness performs punching operation on automotive parts to complete the preset punching processing. This application utilizes a combination of a pressure sensor 42, a servo motor 62, a gear 82, a rack 74, a rotating shaft 81, a mounting bracket 8, a first punch head 83, and a second punch head 84. The pressure sensor 42 can detect the pressure signal corresponding to the thickness of the automotive parts in real time. After receiving the signal, the servo motor 62 drives the transmission structure to operate. Through the meshing transmission of the rack 74 and the gear 82, the rotating shaft 81 and the mounting bracket 8 are driven to rotate, thereby realizing the switching between the first punch head 83 and the second punch head 84. This allows the equipment to automatically select the appropriate punch head according to the actual thickness of the automotive parts. Whether it is a thinner small part or a thicker large part, it can quickly adapt to the processing needs of automotive parts with different thicknesses, improve the adaptability of the equipment to automotive parts of different specifications, and reduce the trouble of changing equipment or manual adjustment due to differences in the thickness of the parts. This application utilizes a pressure sensor 42 in conjunction with a servo motor 62, a threaded rod 64, a rack 74, and a gear 82. The pressure sensor 42 automatically detects the workpiece thickness and triggers a signal, eliminating the need for operators to manually determine the thickness, disassemble the old punch, and install the new punch. After receiving the signal, the servo motor 62 drives the rack 74 to move through the threaded engagement between the threaded rod 64 and the crossbar 7, thereby driving the gear 82 to rotate and achieve punch switching. This automatic detection and switching method reduces manual operation steps, avoids waiting time during manual punch replacement, makes the punching process of automotive parts smoother, improves the efficiency of punching processing of automotive parts, and helps to accelerate the processing progress of batch parts. This application sets up a pressure sensor 42 in conjunction with a spring 53 and a pressure plate 52. The spring 53 can buffer the force when the pressure plate 52 contacts the workpiece, making the pressure transmission more stable. The pressure sensor 42 can accurately capture this pressure signal and convert it into a thickness-related signal. Based on this, the punch head can be switched. The punch switching achieved by the sensor detection can make the matching degree between the punch and the workpiece thickness higher, and make the punch switching accuracy better. This helps to ensure the accuracy of punching in automotive parts, avoid the punch size deviation caused by the mismatch between the punch and the workpiece thickness, and also prevent the punch from being damaged due to unreasonable force, ensuring the normal use of the punch. This application employs a rotating shaft 81, a mounting bracket 8, a first punch head 83, and a second punch head 84. The mounting bracket 8 can rotate around the rotating shaft 81. When one punch head is in use, the other unused punch head will rotate with the mounting bracket 8 to an upward-facing position. This layout allows the idle punch head to be kept away from the processing area of ​​the punching worktable 11, reducing contact with impurities such as iron filings and oil generated during processing. This protects the punch head, maintains its cleanliness and cutting edge condition, extends its service life, and ultimately ensures the stability of the punching quality of automotive parts, ensuring that the hole shape of subsequently processed parts remains consistent.

[0022] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A punching device for automotive parts production, comprising a punching base (1) and a vertical shaft drive frame (12), wherein the vertical shaft drive frame (12) is fixedly installed on the side end of the punching base (1), characterized in that: The punching base (1) is provided with a fixing mechanism to facilitate fixing the workpiece, and the vertical shaft drive frame (12) is provided with a punching mechanism to facilitate punching the workpiece. The fixing mechanism includes a fixed upright plate (2), a push plate (3), an L-shaped upright plate (4), and a top rod (5). The punching mechanism includes an axial slider (6), a crossbar (7), and a mounting bracket (8). The two fixed upright plates (2) are fixedly installed on the upper end of the punching base (1). The two push plates (3) are located on the side ends of the opposite faces of the two fixed upright plates (2). The two L-shaped upright plates (4) are fixedly installed on the upper ends of the two push plates (3). The two top rods (5) are located on the lower ends of the two L-shaped upright plates (4). The axial slider (6) is fixedly installed on the side end of the vertical shaft drive frame (12). The crossbar (7) is located on the lower end of the axial slider (6). The mounting bracket (8) is located on the inner side wall of the axial slider (6).

2. The punching equipment for automotive parts production as described in claim 1, characterized in that, The upper end of the punching base (1) is fixedly installed with a punching workbench (11), the punching workbench (11) is provided with a clearance groove, and the two fixed upright plates (2) are located on both sides of the punching workbench (11).

3. The punching equipment for automotive parts production as described in claim 2, characterized in that, A guide rod (21) is fixedly installed between the two fixed upright plates (2). The side ends of the two fixed upright plates (2) are provided with mounting grooves (22). The inner side walls of the two mounting grooves (22) are rotatably installed with the same double-headed screw (23). The guide rod (21) and the double-ended screw (23) are both located in the clearance groove on the punching worktable (11).

4. The punching equipment for automotive parts production as described in claim 3, characterized in that, The lower ends of the two push plates (3) are fixedly installed with movable uprights (31). The side ends of the two movable uprights (31) are provided with first threaded grooves (32) and cylindrical sliding grooves (33). The two movable uprights (31) are slidably installed on the guide rods (21) through the two cylindrical sliding grooves (33). The double-headed screw (23) is screwed and rotated on the inner sidewalls of the two first threaded grooves (32).

5. The punching equipment for automotive parts production as described in claim 4, characterized in that, Clamping plates (34) are fixedly installed on the side ends of the two push plates (3), rectangular sliding grooves (41) are opened through the side ends of the two L-shaped upright plates (4), and pressure sensors (42) are fixedly installed on the lower ends of the two L-shaped upright plates (4).

6. The punching equipment for automotive parts production as described in claim 5, characterized in that, T-shaped sliders (51) are fixedly installed on the side ends of the two push rods (5). The two T-shaped sliders (51) are slidably installed on the inner side walls of the two rectangular slide grooves (41). A pressure plate (52) is provided at the upper end of the push rod (5). A spring (53) is fixedly installed between the push rod (5) and the pressure plate (52). The end of the spring (53) is attached to the lower end of the pressure sensor (42).

7. The punching equipment for automotive parts production as described in claim 6, characterized in that, The upper end of the axial slider (6) is provided with a clearance groove (61). A servo motor (62) is fixedly installed at the upper end of the axial slider (6). A transmission rod (63) is fixedly installed at the output end of the servo motor (62). The transmission rod (63) is rotatably installed on the inner side wall of the clearance groove (61). A threaded rod (64) is fixedly installed at the lower end of the transmission rod (63).

8. The punching equipment for automotive parts production as described in claim 7, characterized in that, The upper end of the crossbar (7) is provided with a second threaded groove (71), and the threaded rod (64) is rotatably installed on the inner side wall of the second threaded groove (71). Two telescopic rods (72) are also fixedly installed between the crossbar (7) and the axial slider (6).

9. The punching equipment for automotive parts production as described in claim 8, characterized in that, Two side bars (73) are fixedly installed at the side ends of the crossbar (7), and racks (74) are fixedly installed at the upper ends of the two side bars (73).

10. The punching equipment for automotive parts production as described in claim 9, characterized in that, Rotating shafts (81) are fixedly installed on both sides of the mounting bracket (8). The two rotating shafts (81) are respectively rotatably installed on both sides of the axial slider (6). Gears (82) are fixedly installed on the circumferential ends of the two rotating shafts (81). The second punch head (84) and the first punch head (83) are respectively fixedly installed on the upper and lower ends of the mounting bracket (8).

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