Quick die changing and locking mechanism of stamping die

Abstract

The invention discloses a rapid die changing and locking mechanism of a stamping die, and relates to the technical field of die changing mechanisms of stamping dies, the rapid die changing and locking mechanism comprises a die carrying base, and a limiting clamping groove and a guiding clamping groove are formed to limit and guide the stamping die, so that when the stamping die is installed, the stamping die is initially guided through the guiding clamping groove and then enters the limiting clamping groove to be accurately limited; the accuracy of the installation position of the stamping die is guaranteed, the stamping die and an inserting plate are fixed in an inserting mode, then a servo motor drives a traction base to drive the stamping die to move into a limiting clamping groove, at the moment, the output end of an air cylinder extends, the stamping die is pressed and positioned through a pressing block, and the fixing effect of the stamping die is further enhanced; the stamping die can be kept stable in the stamping process, the shaking or displacement phenomenon is avoided, the safety and stability of stamping machining are improved, the air cylinder only needs to be reset during disassembly, the process of disassembling the stamping die is greatly simplified, the production efficiency is improved, and great convenience is brought to workers.

Description

Technical Field

[0001] The present invention relates to the technical field of die-changing mechanisms for stamping dies, and particularly relates to a quick die-changing locking mechanism for a stamping die. Background Art

[0002] A stamping die is a special process equipment that processes materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, called a cold stamping die. Stamping is a pressure processing method that applies pressure to the material by using a die installed on a press at room temperature to cause separation or plastic deformation, thereby obtaining the required parts.

[0003] When the existing stamping die is in use, it is often directly fixed to the corresponding stamping mechanism by bolts. In order to ensure good stability of the stamping die during use, multiple groups of bolts are used for fixing. Although this method is simple, after stamping, the process of the staff disassembling the stamping die is rather cumbersome, time-consuming and laborious, reducing production efficiency and bringing great inconvenience to the staff. Summary of the Invention

[0004] The purpose of the present invention is to provide a quick die-changing locking mechanism for a stamping die to solve the technical problems mentioned in the above background art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A quick die-changing locking mechanism for a stamping die, characterized in that it includes a die-carrying seat. A limit card slot is opened in the center of the top of the die-carrying seat. Guide card slots communicating with the limit card slot are opened at both ends of the top of the die-carrying seat, and the length of the limit card slot is equal to that of the guide card slot. The depth of the limit card slot is greater than that of the guide card slot.

[0007] Inner concave sliding grooves are opened on the bottom walls of the limit card slot and the guide card slot. A lead screw is rotatably arranged inside the inner concave sliding groove. A traction seat is slidably arranged inside the inner concave sliding groove, and the traction seat is rotatably connected with the lead screw. At least one set of lifting slots one is symmetrically opened at the top of the traction seat. A limit spring is arranged inside the lifting slot one. The top end of the limit spring is provided with a lifting seat one that can slide along the inner wall of the lifting slot one. The top end of the lifting seat one is provided with a plug-in board for clamping the stamping die, and a card slot matching the plug-in board is opened at the bottom end of the stamping die.

[0008] Preferably, positioning holes for installing bolts are symmetrically opened at the four corners of the top of the die-carrying seat.

[0009] Preferably, limit slots one for forming limit guidance for the movement of the lifting seat one are symmetrically opened on the inner walls on both sides of the lifting slot one.

[0010] Preferably, locking components for pressing and positioning the stamping die are symmetrically arranged on both sides of the top of the die carrier, and the locking components are located on both sides of the limit card slot. The locking components include a first support plate and a second support plate arranged on the top of the die carrier, and the first support plate and the second support plate are distributed front and back. A connecting rod is rotatably arranged at the top end of the first support plate.

[0011] Preferably, a pressing block for extruding the stamping die is arranged at one end of the connecting rod away from the first support plate, and a rubber pad is arranged on the contact end face between the pressing block and the stamping die.

[0012] Preferably, a hinge seat is arranged at the top of one end of the connecting rod close to the first support plate. A cylinder is rotatably arranged at the top end of the second support plate, and the output end of the cylinder is movably connected to the hinge seat.

[0013] Preferably, movable grooves are symmetrically formed in the bottom wall of the guiding card slot, and the movable grooves are located on both sides of the recessed sliding groove. A plurality of groups of equally spaced first rollers are rotatably arranged inside the movable grooves.

[0014] Preferably, second lifting grooves are symmetrically formed in the inner walls on both sides of the limit card slot, and third lifting grooves are symmetrically formed in the bottom wall of the limit card slot, and the third lifting grooves are located on both sides of the recessed sliding groove.

[0015] Preferably, a second lifting seat is slidably arranged inside the second lifting groove and the third lifting groove. A second roller is rotatably arranged between the second lifting seats, and the highest point of the second roller is flush with the highest point of the first roller.

[0016] Preferably, second limiting grooves for limiting and guiding the movement of the second lifting seat are symmetrically formed in the inner walls on both sides of the third lifting groove. A top spring for supporting the second lifting seat is arranged inside the third lifting groove. A servo motor for driving the lead screw to rotate is arranged at one end of the die carrier.

[0017] Advantages of the present invention:

[0018] 1. In the present invention, the provided limit card slots and guiding card slots limit and guide the stamping die. When installing the stamping die, it is first preliminarily guided through the guiding card slots and then accurately positioned in the limit card slots, ensuring the accuracy of the installation position of the stamping die. The stamping die is inserted and fixed to the plug-in board, and then the traction seat is driven by the servo motor to drive the stamping die to move into the limit card slots. At this time, the output end of the air cylinder extends, enabling the pressing block to press and position the stamping die, further enhancing the fixing effect of the stamping die, enabling the stamping die to remain stable during the stamping process, avoiding shaking or displacement phenomena, improving the safety and stability of the stamping process. When disassembling, the air cylinder can be reset, greatly simplifying the process of disassembling the stamping die, improving production efficiency, and bringing great convenience to the staff;

[0019] 2. In the present invention, several groups of first rollers rotatably arranged on the guiding card slots can reduce the friction when the stamping die slides in the guiding card slots, enabling the stamping die to enter the limit card slots more smoothly. The second rollers arranged inside the limit card slots have their highest points flush with the highest points of the first rollers under the support of the ejecting springs, and can smoothly receive the stamping die. The limit springs elastically support the plug-in board. When the stamping die is squeezed and moves downward, the plug-in board moves downward and retracts into the first lifting slot, the limit springs are compressed, the second rollers are also squeezed and move downward and retract into the second and third lifting slots, and the ejecting springs are compressed. Thus, the stamping die is finally fixed. When it is necessary to replace the stamping die, the output end of the air cylinder retracts to release the fixation of the stamping die. At this time, the limit springs and the ejecting springs reset, and the stamping die can be lifted again to be flush with the highest ends of the first rollers, facilitating disassembly and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the drawings.

[0021] Figure 1 is the overall three-dimensional schematic diagram of the device in the present invention;

[0022] Figure 2 is the three-dimensional schematic diagram of the locking component in the present invention;

[0023] Figure 3 is the structural schematic diagram of the first roller in the present invention;

[0024] Figure 4 is the structural schematic diagram of the plug-in board in the present invention;

[0025] Figure 5 is the structural schematic diagram of the ejecting spring in the present invention.

[0026] In the figure: 1, die carrier base; 2, limit card slot; 3, guide card slot; 4, recessed chute; 5, lead screw; 6, traction seat; 7, first lifting chute; 8, first limit chute; 9, limit spring; 10, first lifting seat; 11, plug-in board; 12, stamping die; 13, card slot; 14, first support plate; 15, second support plate; 16, connecting rod; 17, pressing block; 18, hinge seat; 19, cylinder; 20, movable chute; 21, first roller; 22, second lifting chute; 23, third lifting chute; 24, second lifting seat; 25, second roller; 26, second limit chute; 27, ejecting spring; 28, servo motor. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figures 1-5 shown, a quick die change and locking mechanism for a stamping die is characterized by including a die carrier base 1. The die carrier base 1 serves as the support foundation for the entire mechanism, provides an installation platform for other components, and ensures the stability of the overall operation of the device.

[0029] A limit card slot 2 is provided in the center of the top of the die carrier base 1, and guide card slots 3 communicating with the limit card slot 2 are provided at both ends of the top of the die carrier base 1. The length of the limit card slot 2 is equal to that of the guide card slot 3, and the depth of the limit card slot 2 is greater than that of the guide card slot 3.

[0030] Both the bottom walls of the limit card slot 2 and the guide card slot 3 are provided with sunken sliding grooves 4. A lead screw 5 is rotatably arranged inside the sunken sliding groove 4. A traction seat 6 is slidably arranged inside the sunken sliding groove 4, and the traction seat 6 is threadedly connected with the lead screw 5. At least one set of lifting grooves one 7 are symmetrically opened at the top of the traction seat 6. A limit spring 9 is arranged inside the lifting groove one 7. The top end of the limit spring 9 is provided with a lifting seat one 10 that can slide along the inner wall of the lifting groove one 7. The top end of the lifting seat one 10 is provided with a plug-in board 11 for clamping the stamping die 12. A card slot 13 matching the plug-in board 11 is opened at the bottom end of the stamping die 12. Locking components for pressing and positioning the stamping die 12 are symmetrically arranged on both sides of the top of the die-carrying seat 1, and the locking components are located on both sides of the limit card slot 2. The locking components include a support frame plate one 14 and a support frame plate two 15 arranged on the top of the die-carrying seat 1, and the support frame plate one 14 and the support frame plate two 15 are distributed front and back. A connecting rod 16 is rotatably arranged at the top end of the support frame plate one 14. One end of the connecting rod 16 away from the support frame plate one 14 is provided with a pressing block 17 for extruding the stamping die 12, and a rubber pad is arranged on the contact end face of the pressing block 17 and the stamping die 12. A hinge seat 18 is arranged at the top of the end of the connecting rod 16 close to the support frame plate one 14. A cylinder 19 is rotatably arranged at the top end of the support frame plate two 15, and the output end of the cylinder 19 is movably connected with the hinge seat 18. Moving grooves 20 are symmetrically opened at the bottom wall of the guide card slot 3, and the moving grooves 20 are located on both sides of the sunken sliding groove 4. A number of equally spaced first rollers 21 are rotatably arranged inside the moving grooves 20. Lifting grooves two 22 are symmetrically opened on the inner walls on both sides of the limit card slot 2. Lifting grooves three 23 are symmetrically opened at the bottom wall of the limit card slot 2, and the lifting grooves three 23 are located on both sides of the sunken sliding groove 4. A lifting seat two 24 is slidably arranged inside the lifting grooves two 22 and the lifting grooves three 23. A second roller 25 is rotatably arranged between the lifting seats two 24, and the highest point of the second roller 25 is flush with the highest point of the first roller 21. Limiting grooves two 26 for limiting and guiding the movement of the lifting seat two 24 are symmetrically opened on the inner walls on both sides of the lifting groove three 23. A top spring 27 for supporting the lifting seat two 24 is arranged inside the lifting groove three 23. A servo motor 28 for driving the lead screw 5 to rotate is arranged at one end of the die-carrying seat 1. The opened limit card slot 2 and guide card slot 3 limit and guide the stamping die 12, so that when the stamping die 12 is installed, it is first preliminarily guided through the guide card slot 3 and then enters the limit card slot 2 for precise positioning, ensuring the accuracy of the installation position of the stamping die 12. When the device is in use, first, the stamping die 12 is inserted and fixed with the plug-in board 11, and then the servo motor 28 is started. The servo motor 28 drives the lead screw 5 to rotate, so that the traction seat 6 drives the stamping die 12 to move along the inner wall of the guide card slot 3 at one end. At this time, the plug-in board 11 is inserted into the card slot 13 opened at the bottom of the stamping die 12, and the limit spring 9 elastically supports the plug-in board 11, and the limit spring 9 does not undergo deformation and compression.The plurality of groups of No. 1 rollers 21 rotatably arranged on the guide slot 3 can reduce the friction force when the stamping die 12 slides in the guide slot 3, so that the stamping die 12 can enter the limit slot 2 more smoothly, and the No. 2 roller 25 arranged inside the limit slot 2 has its highest point flush with the highest point of the No. 1 roller 21 under the support of the ejection spring 27, so when the stamping die 12 moves to the limit slot 2 along the No. 1 roller 21, the No. 2 roller 25 can smoothly receive the stamping die 12, and at this time the ejection spring 27 is pressed against the No. 1 roller 21. 7 still maintains the initial state. When the stamping die 12 enters the limit card slot 2, the cylinder 19 is started, and the output end of the cylinder 19 is extended, thereby driving the connecting rod 16 to rotate around the support frame plate 14, so that the pressing block 17 presses and positions the stamping die 12, further enhancing the fixing effect of the stamping die 12. The rubber pad provided on the pressing block 17 can increase the friction between the pressing block 17 and the stamping die 12, and at the same time play a buffering role to avoid damage to the stamping die 12. When the stamping die 12 is When extruded, it moves downward, and the plug-in board 11 moves downward and is recovered to the inside of the lifting slot 1 7. The limit spring 9 is compressed, and the second roller 25 is squeezed and also moves downward and is recovered to the inside of the lifting slot 22 and the lifting slot 3 23. The ejection spring 27 is compressed, so that the stamping die 12 is finally fixed. When the stamping die 12 needs to be replaced, the output end of the cylinder 19 is recovered to release the fixation of the stamping die 12. At this time, the limit spring 9 and the ejection spring 27 are reset, and the stamping die 12 can be lifted again to be flush with the highest end of the first roller 21, and then the servo motor 28 is started again, thereby driving the screw 5 to rotate twice, and the loading and unloading of the stamping die 12 is quickly realized. A stroke sensor is also provided on the die carrier 1, and the running state of the stamping die 12 is monitored by the stroke sensor. When the stamping die 12 reaches the limit slot 2, the stroke sensor can control the servo motor 28 to stop. When the stamping die 12 needs to be replaced, the staff can start the servo motor 28 again, thereby driving the screw 5 to rotate twice.

[0031] In this embodiment, specifically, positioning holes for installing bolts are symmetrically opened at the four corners of the top of the die carrier 1, and the die carrier 1 can be stably fixed on the stamping equipment by the bolts to ensure the stability of the entire mechanism during operation.

[0032] In this embodiment, specifically, the inner walls on both sides of the lifting groove 7 are symmetrically provided with limit grooves 8 for forming a limit guide for the movement of the lifting seat 10. The limit grooves 8 ensure that the lifting seat 10 can only move up and down in the vertical direction, and also prevent the lifting seat 10 from excessively moving out of the lifting groove 7.

[0033] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0034] Working principle of the present invention: The mold carrier base 1 is fixed on the stamping equipment through the positioning holes and bolts to ensure the stable position of the mold carrier base 1. Then, the stamping die 12 is placed on the guiding card slot 3, and the stamping die 12 is inserted and fixed with the plug-in board 11. The servo motor 28 drives the lead screw 5 to drive the stamping die 12 to move along the inner wall of the guiding card slot 3 at one end. After the stamping die 12 enters the limiting card slot 2, the air cylinder 19 is started, and the output end of the air cylinder 19 extends, thereby driving the connecting rod 16 to rotate around the support plate 14, so that the pressing block 17 presses and positions the stamping die 12. At this time, the plug-in board 11 moves downward and retracts into the first lifting groove 7, the limiting spring 9 is compressed, and the second roller 25 is also squeezed and moves downward and retracts into the second lifting groove 22 and the third lifting groove 23, and the ejecting spring 27 is compressed. Thus, the stamping die 12 realizes the final fixation. When it is necessary to replace the stamping die 12, the output end of the air cylinder 19 retracts to release the fixation of the stamping die 12, and the limiting spring 9 and the ejecting spring 27 are reset, and the stamping die 12 can be lifted again to be flush with the highest end of the first roller 21. Then, the servo motor 28 is started again to drive the stamping die 12 to leave the limiting card slot 2, realizing rapid disassembly.

[0035] The above has described in detail an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A quick die-changing locking mechanism for a stamping die, characterized in that it comprises a die carrier (1), a limit slot (2) is provided at the center of the top of the die carrier (1), guide slots (3) communicating with the limit slot (2) are provided at both ends of the top of the die carrier (1), and the limit slot (2) and the guide slot (3) are equal in length, and the depth of the limit slot (2) is greater than the depth of the guide slot (3); The bottom walls of the limit slot (2) and the guide slot (3) are both provided with an inward sliding slot (4), a screw rod (5) is rotatably arranged inside the inward sliding slot (4), a traction seat (6) is slidably arranged inside the inward sliding slot (4), and the traction seat (6) is rotatably connected to the screw rod (5), at least one group of lifting slots (7) is symmetrically provided on the top of the traction seat (6), a limit spring (9) is arranged inside the lifting slot (7), a lifting seat (10) that can slide along the inner wall of the lifting slot (7) is arranged at the top of the limit spring (9), a plug-in board (11) for engaging a stamping die (12) is arranged at the top of the lifting seat (10), and a slot (13) matching the plug-in board (11) is arranged at the bottom of the stamping die (12).

2. A quick die change locking mechanism for a stamping die according to claim 1, characterized in that: Positioning holes for installing bolts are symmetrically provided at the four corners of the top of the mold carrier (1).

3. The quick die change locking mechanism for a stamping die according to claim 1, characterized in that: The inner walls on both sides of the lifting groove (7) are symmetrically provided with limiting grooves (8) for forming limiting guides for the movement of the lifting seat (10).

4. The quick die change locking mechanism for a stamping die according to claim 1, characterized in that: The top sides of the mold carrier (1) are symmetrically provided with locking components for pressing and positioning the stamping die (12), and the locking components are located on both sides of the limiting slot (2). The locking components include a support frame plate 1 (14) and a support frame plate 2 (15) arranged on the top of the mold carrier (1), and the support frame plate 1 (14) and the support frame plate 2 (15) are distributed front and back, and a connecting rod (16) is rotatably provided on the top of the support frame plate 1 (14).

5. A quick die change locking mechanism for a stamping die according to claim 4, characterized in that: A pressing block (17) for pressing the punching die (12) is arranged at one end of the connecting rod (16) away from the supporting frame plate (14), and a rubber pad is arranged on the contact end surface between the pressing block (17) and the punching die (12).

6. A quick die change locking mechanism for a stamping die according to claim 5, characterized in that: A hinge seat (18) is arranged at the top of one end of the connecting rod (16) close to the first support frame plate (14), and a cylinder (19) is rotatably arranged at the top end of the second support frame plate (15), and the output end of the cylinder (19) is movably connected to the hinge seat (18).

7. The quick die change locking mechanism for a stamping die according to claim 1, characterized in that: The bottom wall of the guide slot (3) is symmetrically provided with movable slots (20), and the movable slots (20) are located on both sides of the sunken slide slot (4). A plurality of groups of No. 1 rollers (21) are rotatably arranged inside the movable slot (20) and are distributed at equal distances.

8. The quick die-changing locking mechanism for a stamping die according to claim 1, characterized in that: The inner walls on both sides of the limit slot (2) are symmetrically provided with lifting slots 2 (22), and the bottom wall of the limit slot (2) is symmetrically provided with lifting slots 3 (23), and the lifting slots 3 (23) are located on both sides of the sunken sliding slot (4).

9. A quick die change locking mechanism for a stamping die according to claim 7, characterized in that: A second lifting seat (24) is slidably arranged inside the second lifting slot (22) and the third lifting slot (23), and a second roller (25) is rotatably arranged between the second lifting seat (24), and the highest point of the second roller (25) is flush with the highest point of the first roller (21).

10. A quick die change locking mechanism for a stamping die according to claim 9, characterized in that: The inner walls on both sides of the lifting groove three (23) are symmetrically provided with limit grooves two (26) for forming a limit guide for the movement of the lifting seat two (24), and the interior of the lifting groove three (23) is provided with an ejection spring (27) for supporting the lifting seat two (24), and one end of the mold carrier (1) is provided with a servo motor (28) for driving the screw rod (5) to rotate.

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