A stamping die with a positioning and changing pneumatic execution system

Abstract

The present invention discloses a stamping die with a positioning and changing pneumatic execution system, which relates to the technical field of stamping dies, including: a die pneumatic assembly and a punching pneumatic assembly. The stamping die includes: a base, a die main body and a stamping part. The die main body includes a fixed part and a movable part, and the die pneumatic assembly is driven and connected to the movable part; a limiting mechanism is provided on the base, and the base is formed with a plurality of horizontal positioning points based on the limiting mechanism, and a tooling space for accommodating sheet metal workpieces is formed between the movable part and the fixed part; the stamping part is provided with a plurality of accommodating grooves, and any accommodating groove is provided with a telescopic block and a punching ejector pin, and the punching pneumatic assembly is driven and connected to the telescopic block, and the punching pneumatic assembly is used to drive the telescopic block to adjust the working state of the punching ejector pin. The tooling size and punching position of the stamping die are adjusted based on the pneumatic mechanism, so as to improve the versatility of the stamping die, save processing costs, and improve the processing convenience and production efficiency of the sheet metal workpieces.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, and in particular to a stamping die with a positioning and changing pneumatic execution system. Background Art

[0002] At present, stamping dies are mainly customized according to the stamping processing requirements of sheet metal workpieces, so that a set of stamping dies can only adapt to the processing requirements of one type of sheet metal workpiece. For multiple types of sheet metal workpieces in the same series, multiple sets of stamping dies need to be designed according to the size of the sheet metal workpiece and the punching processing position, resulting in high equipment costs for sheet metal processing. In addition, different types of sheet metal workpieces are stamped by cooperating with multiple sets of stamping dies, which affects the processing convenience of sheet metal workpieces and thus affects the production efficiency of sheet metal workpieces. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art. The present invention provides a stamping die with a positioning and changing pneumatic execution system. By arranging a die pneumatic component and a punching pneumatic component in the stamping die, the tooling size and punching position of the stamping die are adjusted based on the pneumatic mechanism, so that the stamping die can meet the processing requirements of sheet metal workpieces of different models, saving processing costs and improving the processing convenience and production efficiency of sheet metal workpieces.

[0004] The present invention provides a stamping die with a positioning and changing pneumatic execution system, the stamping die comprising: a base, a die body and a stamping component, the stamping component is located above the die body, and a stamping space for accommodating a sheet metal workpiece is formed between the stamping component and the die body;

[0005] The positioning and changing pneumatic execution system includes: a mold pneumatic component for adjusting the mold processing size, a punching pneumatic component for adjusting the punching processing position, and a pressing pneumatic component for realizing sheet metal stamping;

[0006] The mold body comprises a fixed part fixed on a base and a movable part slidably matched on the base, and the mold pneumatic assembly is drivingly connected to the movable part;

[0007] A limiting mechanism is provided on the base, and the base forms a plurality of horizontal positioning points based on the limiting mechanism. The movable part moves to one of the horizontal positioning points based on the mold pneumatic assembly, and a tooling space for accommodating the sheet metal workpiece is formed between the movable part and the fixed part;

[0008] The stamping component is provided with a plurality of accommodating slots, any of which is provided with a telescopic block and a stamping ejector pin, the punching pneumatic assembly is drivingly connected to the telescopic block, and the punching pneumatic assembly is used to drive the telescopic block to adjust the working state of the stamping ejector pin.

[0009] Furthermore, the mold pneumatic assembly includes a first actuator cylinder, and the first actuator cylinder is drivingly connected to the movable part.

[0010] Furthermore, the mold pneumatic assembly also includes a locking mechanism, and the locking mechanism includes a telescopic cylinder and a locking block;

[0011] The telescopic cylinder is drivingly connected to the locking block. The telescopic cylinder is arranged on the side wall of the base, and is used to drive the locking block to abut against the top surface of the movable part.

[0012] Furthermore, a plurality of driving air circuits are arranged in the stamping die, and the first actuating cylinder and the telescopic cylinder are connected to the same driving air circuit via a connecting valve.

[0013] Furthermore, the output shaft of the telescopic cylinder is provided with a return spring, one end of the return spring is connected to one end of the telescopic cylinder, and the other end of the return spring is connected to the locking block.

[0014] Furthermore, one end of the locking block is connected to the output end of the telescopic cylinder, the other end of the locking block extends to the side wall position of the movable part, and the other end of the locking block is folded inward to form a clamping surface connected to the top surface of the movable part.

[0015] Furthermore, the punching pneumatic assembly includes a second actuating cylinder disposed in the accommodating groove in a one-to-one correspondence, and the second actuating cylinder is drivingly connected to the telescopic block;

[0016] The telescopic block abuts against the punching ejector pin when driven by the second actuating cylinder, or the telescopic block forms a preset distance with the punching ejector pin when driven by the second actuating cylinder.

[0017] Furthermore, the limiting mechanism includes a limiting protrusion and a plurality of limiting grooves;

[0018] The limiting protrusion is plugged into and matched with one of the plurality of limiting grooves, and one end of the limiting protrusion extends into the limiting groove.

[0019] Furthermore, the limiting mechanism includes a plurality of limiting grooves, a plurality of limiting protrusions and a plurality of driving motors, and the plurality of limiting protrusions are plugged into the plurality of limiting grooves in a one-to-one correspondence;

[0020] A plurality of driving motors are connected to a plurality of limiting protrusions in a one-to-one correspondence. The limiting protrusions are completely retracted in the limiting grooves based on the driving of the driving motors, or the limiting protrusions are partially extended in the limiting grooves based on the driving motors.

[0021] Furthermore, the limiting mechanism includes a limiting groove, a limiting protrusion slidably fitted in the limiting groove, and a driving motor;

[0022] The limiting groove, the limiting protrusion and the driving motor cooperate to form an electric slide structure.

[0023] The present invention provides a stamping die with a positioning and changing pneumatic execution system. The distance between the movable part and the fixed part of the stamping die is adjusted by setting a die pneumatic component, so as to adjust the tooling size of the sheet metal workpiece of the stamping die. The working states of several stamping ejectors in the stamping component are adjusted based on the punching pneumatic component to meet the punching processing requirements at different positions of the sheet metal workpiece. The adaptability of the stamping die to different sheet metal workpieces is improved based on the cooperation between the die pneumatic component and the punching pneumatic component, thereby improving the versatility of the stamping die. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of a stamping die with a positioning and changing pneumatic execution system in an embodiment of the present invention;

[0025] Figure 2 is a schematic structural diagram of a stamping die in an embodiment of the present invention;

[0026] Figure 3 is a schematic structural diagram of a stamping component in an embodiment of the present invention;

[0027] Figure 4 In the embodiment of the present invention, Figure 3 A schematic diagram of the structure at A;

[0028] Figure 5 is a schematic structural diagram of a mold body in an embodiment of the present invention;

[0029] Figure 6 is a top view of the mold main body structure of the first embodiment of the present invention;

[0030] Figure 7 is a structural top view of the mold body in another size state according to the first embodiment of the present invention;

[0031] Figure 8 is a top view of the mold main body structure of the second embodiment of the present invention;

[0032] Fig. 9 It is a structural top view of the mold body in another size state according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] Figure 1 The schematic diagram of the structure of the stamping die with the positioning and changing pneumatic execution system in the embodiment of the present invention is shown. Figure 2 A schematic diagram of the structure of a stamping die in an embodiment of the present invention is shown, wherein the positioning and changing pneumatic execution system comprises: a die pneumatic component 2 for adjusting die processing dimensions, a punching pneumatic component 3 for adjusting punching processing positions, a pressing pneumatic component 4 for realizing sheet metal stamping, and a main control module 1, wherein the main control module 1 is used to regulate the working states of the die pneumatic component 2, the punching pneumatic component 3 and the pressing pneumatic component 4.

[0036] Figure 3 A schematic diagram of the structure of a stamping component in an embodiment of the present invention is shown; Figure 4 The embodiment of the present invention is shown in FIG. Figure 3 The enlarged schematic diagram of the structure at point A of the stamping die comprises: a base 100, a die body 300 and a stamping component 200. The stamping component 200 is located above the die body 300. A stamping space for accommodating a sheet metal workpiece is formed between the stamping component 200 and the die body 300. A plurality of stamping ejectors 201 are provided on the stamping component 200. When the stamping component 200 is connected to the die body 300, the stamping component 200 can form a plurality of hole structures in the sheet metal workpiece by stamping based on the plurality of stamping ejectors 201.

[0037] Furthermore, based on the cooperation between the stamping component 200 and the mold body 300, a stamping space for accommodating the sheet metal workpiece can be formed, so that the sheet metal workpiece can be formed into a desired shape structure.

[0038] Figure 5A schematic structural diagram of a mold body in an embodiment of the present invention is shown, wherein the mold body 300 includes a fixed portion 302 fixed on a base 100 and a movable portion 301 slidably fitted on the base 100, and the mold pneumatic assembly 2 is drivingly connected to the movable portion 301; the mold pneumatic assembly 2 includes a first actuator cylinder 21 drivingly connected to the movable portion 301, and the movable portion 301 can be driven to move in a horizontal direction based on the first actuator cylinder 21, so as to adjust the relative position between the fixed portion 302 and the movable portion 301, thereby adjusting the stamping workpiece placement size of the stamping mold, so that the stamping mold can adapt to the stamping processing requirements of sheet metal workpieces of different sizes.

[0039] A limiting mechanism 400 is provided on the base 100, and the base 100 is formed with a plurality of horizontal positioning points based on the limiting mechanism 400. The movable part 301 is moved to one of the horizontal positioning points based on the mold pneumatic component 2. A tooling space for accommodating sheet metal workpieces is formed between the movable part 301 and the fixed part 302. The position of the movable part 301 is adjusted by cooperating with the mold pneumatic component 2 through the limiting mechanism 400, so that the mold main body 300 can adapt to sheet metal workpieces of different models and sizes.

[0040] Specifically, the punching pneumatic assembly 3 is arranged in a stamping component 200, and the stamping component 200 is provided with a plurality of receiving slots 202. Any of the receiving slots 202 is provided with a telescopic block 32 and a punching ejector pin 201. The punching pneumatic assembly 3 is driven and connected to the telescopic block 32, and the punching pneumatic assembly 3 is used to drive the telescopic block 32 to adjust the working state of the punching ejector pin 201.

[0041] One end of the punching ejector pin 201 extends outside the receiving groove 202 , so that when the punching component 200 is connected to the mold body 300 , the punching ejector pin 201 can be connected to the sheet metal workpiece, thereby realizing punching processing on the sheet metal workpiece.

[0042] The punching pneumatic assembly 3 includes a second actuator cylinder 31 which is arranged in a one-to-one correspondence in the accommodating groove 202. A telescopic block 32 is arranged in the accommodating groove 202. The second actuator cylinder 31 is driven and connected to the telescopic block 32. The second actuator cylinder 31 can drive the telescopic block 32 to operate, thereby realizing the working adjustment of the punching ejector 201.

[0043] When the second actuator cylinder 31 drives the telescopic block 32 to extend in the receiving groove 202, the telescopic block 32 abuts against the punching ejector 201. The telescopic block 32 can put the punching ejector 201 in a working state, so that when the stamping component 200 is connected to the mold body 300, the punching ejector 201 can be in rigid contact with the sheet metal workpiece, so that the punching ejector 201 performs punching processing on the sheet metal workpiece;

[0044] When the second actuator cylinder 31 drives the telescopic block 32 to shrink in the accommodating groove 202, the punching ejector 201 has sufficient margin of activity in the accommodating groove 202. Based on the accommodating groove 202, the punching ejector 201 can be in a non-working state. When the stamping component 200 is connected to the mold body 300, the punching ejector 201 can be flexibly connected to the sheet metal workpiece, so that the punching ejector 201 moves toward the inside of the accommodating groove 202 based on the force of the connection with the sheet metal workpiece, that is, the punching ejector 201 shrinks in the accommodating groove 202, thereby preventing the punching ejector 201 from punching the sheet metal workpiece.

[0045] Furthermore, the stamping component 200 can be provided with several sets of punching position arrangement schemes. Based on the punching pneumatic assembly 3, the stamping component 200 can adjust the punching position scheme according to the model of the sheet metal workpiece, so that a set of stamping dies can meet the punching requirements of various models of sheet metal workpieces, thereby improving the versatility of the stamping dies and the convenience of punching adjustment.

[0046] Specifically, the main control module 1 is signal-connected with the mold pneumatic component 2 and the punching pneumatic component 3. The main control module 1 can obtain the stamping processing requirements of the sheet metal workpiece according to the model of the sheet metal workpiece. The main control module 1 extracts the processing size of the sheet metal workpiece according to the stamping processing requirements of the sheet metal workpiece, and generates a first adjustment instruction according to the processing size. The main control module 1 drives the mold pneumatic component 2 to work based on the first adjustment instruction, so that the mold pneumatic component 2 drives the movement of the mold main body 300, adjusts the relative position between the movable part 301 and the fixed part 302, so that the mold main body 300 can adapt to the size of the sheet metal workpiece.

[0047] The main control module 1 can increase the punching processing position of the sheet metal workpiece according to the stamping processing requirements of the sheet metal workpiece, and generate a second adjustment instruction according to the punching position. The main control module 1 can adjust the operation of the punching pneumatic component 3 based on the second adjustment instruction, so that the stamping component 200 can perform punching processing on the corresponding position of the sheet metal workpiece.

[0048] Specifically, the main control module 1 receives the first action signal of the mold pneumatic component 2 and the second action signal of the punching pneumatic component 3. After the mold pneumatic component 2 executes the relative position adjustment between the movable part 301 and the fixed part 302 according to the first adjustment instruction, the mold pneumatic component 2 can feedback the first action signal to the main control module 1, so that the main control module 1 can confirm that the mold body 300 meets the placement size requirements of the sheet metal workpiece according to the first action signal.

[0049] The punching pneumatic component 3 adjusts the working state of the punching ejector pins 201 in the stamping component 200 based on the second adjustment instruction, so that the several punching ejector pins 201 in the stamping component 200 can meet the punching processing requirements of the sheet metal workpiece. When the punching pneumatic component 3 completes the adjustment of the working states of the several punching ejector pins 201, the punching pneumatic component 3 sends a second action signal to the main control module 1, so that the main control module 1 can confirm that the several punching ejector pins 201 of the stamping component 200 are in the correct position according to the second action signal.

[0050] Specifically, the main control module 1 generates a third adjustment instruction based on the first action signal and the second action signal, and the main control module 1 drives the downward pressure pneumatic component 4 to work based on the third adjustment instruction, so that the downward pressure pneumatic component 4 drives the stamping component 200 to descend to the position of the mold body 300, thereby realizing the stamping processing of the sheet metal workpiece. Based on the first action signal and the second action signal, it is ensured that the mold body 300 meets the size model of the sheet metal workpiece, and the several stamping ejectors 201 of the stamping component 200 can meet the punching processing requirements of the sheet metal workpiece. Based on the cooperation between the stamping component 200 and the mold body 300, the stamping processing parameters of the stamping die can be adjusted according to the specific processing requirements of the sheet metal workpiece, thereby improving the processing versatility of the stamping die for different sheet metal workpieces.

[0051] Furthermore, the downward pressing pneumatic assembly 4 includes a third actuator cylinder 41, based on which the third actuator cylinder 41 can drive the stamping component 200 to be pressed downward in the direction of the mold body 300, so that the stamping component 200 can punch the sheet metal workpiece of the mold body 300 based on the stamping ejector pin 201.

[0052] Specifically, the mold body 300 also includes a base 100, the fixed part 302 is fixedly arranged in the middle position of the base 100, and a limiting mechanism 400 is arranged on the base 100 for limiting the movement of the movable part 301, and the limiting mechanism 400 includes a limiting groove 402 arranged on the base 100 and a limiting protrusion 401 inserted into the limiting groove 402, one end of the limiting protrusion 401 extends outside the limiting groove 402, and the end of the limiting protrusion 401 extending outside the limiting groove 402 is located on the movement trajectory of the movable part 301, when the first actuator cylinder 21 drives the movable part 301 to move, the limiting protrusion 401 can block and limit the movable part 301, so that the movable part 301 stops at a preset position to meet the relative position setting requirements between the movable part 301 and the fixed part 302.

[0053] Specifically, Figure 6 A top view of the mold main body structure of the first embodiment of the present invention is shown; Figure 7 A structural top view of another size state of the mold body of the first embodiment of the present invention is shown. The base 100 can be provided with a plurality of limit grooves 402. The plurality of limit grooves 402 can be arranged equidistantly at a preset interval. The positions of the plurality of limit grooves 402 are set according to the production task requirements, so that the staff can adjust the matching relationship between the limit protrusion 401 and the limit groove 402 according to the sheet metal processing size, that is, according to the processing procedure setting of the stamping die, the operator pre-plugs the limit protrusion 401 with one of the plurality of limit grooves 402, so that the limit protrusion 401 on the base 100 can meet the movement limit requirement of the movable part 301, and the position of the movable part 301 is limited and fixed.

[0054] Furthermore, the spacing between several of the limit grooves 402 can be adjusted according to the size of the sheet metal workpiece involved in the production task requirements, so that the limit block can meet the positioning requirements of different sheet metal workpieces. When the first actuator cylinder 21 drives the movable part 301 to move on the base 100 based on the first adjustment instruction, the movable part 301 can be positioned on the base 100 based on the first limit protrusion 401 to meet the stamping positioning requirements of the sheet metal workpiece.

[0055] Specifically, the limiting mechanism 400 can be set as an electric limiting mechanism 400, and a plurality of driving motors and a plurality of limiting protrusions 401 are arranged on the base 100, and the plurality of limiting protrusions 401 are arranged one-to-one with the plurality of limiting grooves 402, and the plurality of driving motors are driven and connected to the plurality of limiting protrusions 401 in a one-to-one manner, and the driving motor drives the limiting protrusions 401 to move up and down in the limiting groove 402, so that one end of the limiting protrusion 401 extends outside the limiting groove 402, or the limiting protrusion 401 is completely accommodated in the limiting groove 402.

[0056] Furthermore, the limiting mechanism 400 can be connected to the main control module 1 by signal, so that the limiting mechanism 400 can mobilize one of the several driving motors to act based on the first adjustment instruction of the main control module 1, so that one of the several limiting protrusions 401 moves upward and extends outside the limiting groove 402, thereby limiting the movement of the movable part 301. When the first actuator cylinder 21 drives the movable part 301 to move, the movable part 301 can be abutted against one end of the limiting protrusion 401 extending outside the limiting groove 402, so that the relative position between the movable part 301 and the fixed part 302 of the mold body 300 can meet the placement requirements of the sheet metal workpiece.

[0057] Furthermore, based on the driving motor, the relative position between the limit protrusion 401 and the limit groove 402 can be automatically adjusted, so that the positioning and changing pneumatic execution system can automatically adjust the limit protrusion 401, thereby realizing full automatic control of the positioning and changing pneumatic execution system, reducing manual labor costs, and improving the convenience of adjusting the stamping die.

[0058] Specifically, a locking mechanism is provided between the movable part 301 and the base 100, and the locking mechanism includes a locking block 24 and a driving member, wherein the driving member is drivingly connected to the locking block 24, one end of the locking block 24 is fixed to the side wall of the base 100, and the other end of the locking block 24 extends above the base 100, and the other end of the locking block 24 is folded inwardly, so that the other end of the locking block 24 forms a pressing surface located above the top surface of the movable part 301, and the driving member can drive the locking block 24 to move in the vertical direction, so that the pressing surface of the locking block 24 moves toward the top surface of the movable part 301, so that the pressing surface of the locking block 24 is tightly attached to the top surface of the movable part 301, and the relative position between the movable part 301 and the base 100 is fixed based on the squeezing of the movable part 301 by the locking block 24.

[0059] Furthermore, the telescopic cylinder 23 is arranged in the base 100, and the telescopic cylinder 23 drives the locking block 24 to move in the vertical direction, thereby adjusting the distance between the locking block 24 and the pressing surface and the movable part 301, so that the locking block 24 can be clamped and fixed on the movable part 301.

[0060] Specifically, when the telescopic cylinder 23 is working, the telescopic cylinder 23 can drive the locking block 24 to retract toward the base 100 and the movable part 301 , so that the locking block 24 can clamp and fix the movable part 301 .

[0061] Furthermore, the output shaft sleeve of the telescopic cylinder 23 is connected with a reset spring. When the telescopic cylinder 23 stops driving, the elastic reset performance of the reset spring can drive the locking block 24 to move away from the movable part 301, thereby achieving the release of the movable part 301 by the locking block 24.

[0062] Specifically, the first actuator cylinder 21 and the telescopic cylinder 23 can be set to be linked control, that is, the first actuator cylinder 21 and the telescopic cylinder 23 are connected to the same driving air circuit based on the connecting valve 22, so that when the driving air circuit drives the first actuator cylinder 21 to work, the telescopic cylinder 23 is in an idle state, so that the locking block 24 can move in a direction away from the movable part 301 based on the action of the return spring, and the locking mechanism is in an open state, so that the first actuator cylinder 21 can drive the movable part 301 to move on the base 100.

[0063] When the first actuator cylinder 21 drives the movable part 301 to move to a preset position, the driving air circuit stops supplying air to the first actuator cylinder 21 and supplies air to drive the telescopic cylinder 23, so that the telescopic cylinder 23 drives the locking block 24 to clamp and fix the movable part 301.

[0064] Furthermore, the connecting valve 22 is configured as an electronic valve, and the opening and closing states of the connecting valve 22 are controlled based on the main control module 1, so that the main control module 1 can adjust the connection state of the driving air circuit according to the working state requirements of the stamping die, thereby realizing the linkage control of the working state of the locking mechanism and the mold pneumatic component 2.

[0065] Specifically, since the first actuator cylinder 21 and the telescopic cylinder 23 share a set of driving air circuits, motion interference between the first actuator cylinder 21 and the telescopic cylinder 23 is avoided, and the safety of the operation of the mold pneumatic component 2 and the limiting mechanism 400 is improved.

[0066] Furthermore, by connecting the first actuator cylinder 21 and the telescopic cylinder 23 to the same set of driving air circuits, and cooperating with the connecting valve 22 to control and regulate the working states of the first actuator cylinder 21 and the telescopic cylinder 23, the working state requirements of the first actuator cylinder 21 and the telescopic cylinder 23 can be met, and the internal air circuit arrangement structure of the stamping mold can be simplified.

[0067] Specifically, based on a combination of several stamping dies, a stamping processing production line for sheet metal workpieces can be formed. Several processing stations are arranged in the stamping processing production line, so that several stamping dies are arranged one by one on several processing stations. According to the model size of the sheet metal workpiece and the punching processing position requirements, the size of the die body 300 of each stamping die and the stamping working state of the stamping component 200 are preset, so that the sheet metal workpiece passes through the stamping dies on several processing stations in turn, and the stamping processing requirements of the sheet metal workpiece can be completed.

[0068] Embodiment 2:

[0069] Figure 8 A top view of the mold main body structure of the second embodiment of the present invention is shown; Fig. 9 The top view of the structure of the mold body in another size state of the second embodiment of the present invention is shown. In this embodiment, the limiting mechanism 400 includes a limiting groove 402, a limiting protrusion 401 that slides in the limiting groove 402, and a driving motor; the limiting groove 402, the limiting protrusion 401 and the driving motor cooperate to form an electric slide structure, based on which the position of the limiting protrusion 401 in the limiting groove 402 can be adjusted, thereby realizing stepless adjustment of the distance between the movable part 301 and the fixed part 302.

[0070] The limiting groove 402 on the base 100 can be set as a linear slotted structure, the limiting protrusion 401 is slidably connected to the limiting groove 402, and the driving motor is driven to connect the limiting protrusion 401. Based on the driving motor, the limiting protrusion 401 can be driven to reciprocate in the limiting groove 402.

[0071] The limiting protrusion 401 partially extends outside the limiting groove 402, so that the limiting protrusion 401 can block the movement of the movable part 301, thereby limiting the movement of the movable part 301, and fixing the relative position between the movable part 301 and the fixed part 302 to meet the placement requirements of the sheet metal workpiece.

[0072] Based on the driving motor driving the limiting protrusion 401 to move on the limiting groove 402, the moving position limit of the movable part 301 can be adjusted steplessly, so that the positioning and changing pneumatic execution system can adjust the position of the limiting protrusion 401 according to the size requirements of the sheet metal workpiece, thereby improving the adaptability of the mold main body 300 to different sheet metal workpieces and improving the versatility of the mold main body 300.

[0073] Specifically, the main control module 1 may be preset with stamping parameters of sheet metal workpieces of several models and sizes. According to the stamping processing requirements of the sheet metal workpiece, the main control module 1 is configured with stamping adjustment instructions corresponding to several setting parameters. When the sheet metal workpiece is subjected to stamping processing, the main control module 1 first obtains the model size of the sheet metal workpiece, and selects the stamping adjustment instructions of the corresponding setting parameters according to the model size of the sheet metal workpiece, and adjusts the working state of the limit mechanism 400 based on the stamping adjustment instructions, so that the drive motor can drive the limit protrusion 401 to move to the corresponding position to meet the relative position setting requirements between the movable part 301 and the fixed part 302, so that the mold body 300 can meet the placement requirements of the sheet metal workpiece.

[0074] Furthermore, when a sheet metal workpiece of a new model size is input into the stamping processing production line where the stamping die is located, the main control module 1 obtains the placement size of the sheet metal workpiece based on the model size of the sheet metal workpiece, and calculates the relative position size between the fixed part 302 and the movable part 301 in the die body 300, and generates an adjustment instruction for the limit mechanism 400 so as to drive the limit protrusion 401 to move to a preset position based on the drive motor.

[0075] Furthermore, based on the sliding cooperation between the limiting protrusion 401 and the limiting groove 402, the mold body 300 can meet the workpiece stamping requirements of the sheet metal workpiece, and the relative position distance between the fixed part 302 and the movable part 301 can be steplessly adjusted through the sliding cooperation between the limiting protrusion 401 and the limiting groove 402. The driving motor can be used to realize automatic position adjustment of the limiting protrusion 401, which can improve the convenience of the cooperation and adjustment of the limiting protrusion 401 and the limiting groove 402.

[0076] The embodiment of the present invention provides a stamping die with a positioning and changing pneumatic execution system. By setting the cooperation between the die pneumatic component 2 and the punching pneumatic component 3, the size of the die body 300 of the stamping die can be adjusted according to the stamping processing requirements of sheet metal workpieces of different models and sizes to meet the tooling requirements of the sheet metal workpiece. Based on the punching position processing requirements of the sheet metal workpiece, the working states of several punching ejectors 201 in the stamping component 200 can be adjusted to meet the stamping processing requirements of the sheet metal workpiece, thereby improving the stamping processing convenience and versatility of the stamping die.

[0077] In addition, the embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A pneumatic actuator system for positioning a stamping die, characterized in that: The positioning pneumatic execution system includes: a mold pneumatic component for adjusting the mold processing size, a punching pneumatic component for adjusting the punching processing position, and a pressing pneumatic component for realizing sheet metal stamping; The stamping die comprises: a base, a die body and a stamping component, wherein the stamping component is located above the die body, and a stamping space for accommodating a sheet metal workpiece is formed between the stamping component and the die body; The mold body comprises a fixed part fixed on a base and a movable part slidably matched on the base, and the mold pneumatic assembly is drivingly connected to the movable part; A limiting mechanism is provided on the base, and the base forms a plurality of horizontal positioning points based on the limiting mechanism. The movable part moves to one of the horizontal positioning points based on the mold pneumatic assembly, and a tooling space for accommodating the sheet metal workpiece is formed between the movable part and the fixed part; The stamping component is provided with a plurality of accommodating slots, any of which is provided with a telescopic block and a punching ejector pin, the punching pneumatic assembly is drivingly connected to the telescopic block, and the punching pneumatic assembly is used to drive the telescopic block to adjust the working state of the punching ejector pin; The mold pneumatic assembly includes a first actuator cylinder, which drives and connects the movable part. The mold pneumatic assembly also includes a locking mechanism, which includes a telescopic cylinder and a locking block. The telescopic cylinder is drivingly connected to the locking block, the telescopic cylinder is arranged on the side wall of the base, and the telescopic cylinder is used to drive the locking block to abut against the top surface of the movable part, the output shaft of the telescopic cylinder is provided with a return spring, one end of the return spring is connected to one end of the telescopic cylinder, and the other end of the return spring is connected to the locking block; A plurality of driving air circuits are arranged in the stamping die, and the first executing cylinder and the telescopic cylinder are arranged for linkage control, that is, the first executing cylinder and the telescopic cylinder are connected to the same driving air circuit based on a connecting valve, so that when the driving air circuit drives the first executing cylinder to work, the telescopic cylinder is in an idle state, so that the locking block moves in a direction away from the movable part based on the action of a reset spring, and the locking mechanism is in an open state, so that the first executing cylinder can drive the movable part to move on the base.

2. The pneumatic actuator system for positioning a stamping die according to claim 1, characterized in that: One end of the locking block is connected to the output end of the telescopic cylinder, the other end of the locking block extends to the side wall position of the movable part, and the other end of the locking block is folded inward to form a pressing surface connected to the top surface of the movable part.

3. The pneumatic actuator system for positioning a stamping die according to claim 1, characterized in that: The punching pneumatic assembly includes a second actuating cylinder disposed in the receiving groove in a one-to-one correspondence, and the second actuating cylinder is drivingly connected to the telescopic block; The telescopic block abuts against the punching ejector pin when driven by the second actuating cylinder, or the telescopic block forms a preset distance with the punching ejector pin when driven by the second actuating cylinder.

4. The pneumatic actuator system for positioning a stamping die according to claim 1, characterized in that: The limiting mechanism includes a limiting protrusion and a plurality of limiting grooves; The limiting protrusion is plugged into and matched with one of the plurality of limiting grooves, and one end of the limiting protrusion extends into the limiting groove.

5. The positioning pneumatic execution system for stamping dies according to claim 1, characterized in that: The limiting mechanism comprises a plurality of limiting grooves, a plurality of limiting protrusions and a plurality of driving motors, and the plurality of limiting protrusions are plugged into the plurality of limiting grooves one by one; A plurality of driving motors are connected to a plurality of limiting protrusions in a one-to-one correspondence. The limiting protrusions are completely retracted in the limiting grooves based on the driving of the driving motors, or the limiting protrusions are partially extended in the limiting grooves based on the driving motors.

6. The pneumatic actuator system for positioning a stamping die according to claim 1, characterized in that: The limiting mechanism comprises a limiting groove, a limiting protrusion slidably fitted in the limiting groove, and a driving motor; The limiting groove, the limiting protrusion and the driving motor cooperate to form an electric slide structure.

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