Material supporting and positioning structure of stamping die

Abstract

The utility model relates to the field of stamping equipment, in particular to a material supporting and positioning structure of a stamping die, which comprises a lower die holder, an eccentric block, a transmission mechanism, a material guide plate, a limiting mechanism and a positioning pin, guide columns are mounted at the diagonal positions of the top of the lower die holder, and a lower die plate is mounted at the top of the lower die holder. The stamping die supporting and positioning structure comprises a lower die plate, an upper die plate is arranged above the lower die plate, an upper die base is installed on the top of the upper die plate, eccentric blocks are symmetrically arranged at the two ends of the lower die base, and a transmission mechanism is installed in the lower die base. An operator can conveniently adjust the position of the eccentric block by rotating the crank, so that accurate positioning of plates of different sizes is achieved, the positioning process is simplified, the positioning accuracy and efficiency are remarkably improved, and the stamping die can meet more diversified production requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch equipment field especially relates to a punch die material supporting positioning structure. BACKGROUND

[0002] In the metal processing industry, the punch die is the key equipment for manufacturing various metal parts. Through the shape and structure design inside the die, the punch die can punch the metal plate into the required shape and size under strong pressure. However, during the punching process, how to ensure the accurate positioning and stable material supporting of the plate has always been an important challenge to improve the punching precision and efficiency.

[0003] The traditional punch die material supporting positioning structure often adopts a simple mechanical fixing method, such as bolts, pins, etc. Although these methods can fix the plate to a certain extent, they usually need to be disassembled and reinstalled when facing different sizes of plates, which is cumbersome and inefficient. In addition, during the use of the punch die, due to changes in production requirements or die wear, etc., the lower die plate often needs to be replaced. However, the traditional lower die plate installation and positioning method is often cumbersome and time-consuming, requiring a large number of tools and professional personnel to complete, which not only reduces production efficiency but also increases production cost.

[0004] Therefore, it is necessary to provide a new punch die material supporting positioning structure to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the utility model provides a punch die material supporting positioning structure.

[0006] The punch die material supporting positioning structure provided by the utility model comprises a lower die seat, eccentric blocks, a transmission mechanism, a guide plate, a limiting mechanism and positioning pins. Guide columns are installed at the top opposite corners of the lower die seat. A lower die plate is installed on the top of the lower die seat. An upper die plate is arranged above the lower die plate. An upper die seat is installed on the top of the upper die plate. Eccentric blocks are symmetrically arranged at both ends of the lower die seat. A transmission mechanism is installed inside the lower die seat. The transmission mechanism drives the eccentric blocks to rotate for positioning the plate for punching. Guide plates are symmetrically installed on the top of the lower die seat. A limiting mechanism is installed between the guide plates and the lower die plate. The limiting mechanism is used to fix the lower die plate. Multiple sets of positioning pins are installed between the lower die seat and the lower die plate.

[0007] Preferably, the transmission mechanism comprises a worm, a worm wheel and a rotating rod. A worm is rotatably connected to one end of the lower die seat. Threads are arranged at both ends of the worm. Rotating rods are symmetrically rotatably connected to both ends of the lower die seat. The top parts of the two sets of rotating rods are fixedly connected to the corresponding eccentric blocks. Worm wheels are fixedly connected to the bottom part of one set of rotating rods near the worm. The two worm wheels are meshingly connected with the worm.

[0008] Preferably, the bottom of the two groups of rotating rods is fixedly connected with a gear, a sliding groove penetrating through both ends is symmetrically arranged in the lower die seat, a rack is slidably connected to the inner wall of the sliding groove, the two racks are meshingly connected with the corresponding gears at both ends of the lower die seat, and one end of the two racks close to the worm is designed in an L shape.

[0009] Preferably, the limiting mechanism comprises a trapezoidal groove, a trapezoidal sliding block and a spring, trapezoidal grooves are arranged at both ends of the lower die plate, recesses corresponding to the trapezoidal grooves are arranged at one end of the two material guide plates close to the lower die plate, trapezoidal sliding blocks are slidably connected to the inner walls of the two recesses, a plurality of springs are fixedly connected to one end of the two trapezoidal sliding blocks away from the corresponding trapezoidal grooves, and one end of each of the plurality of springs is fixedly connected to the inner wall of the corresponding recess.

[0010] Preferably, through holes are arranged at the opposite corners of the lower die plate, circular holes corresponding to the through holes are arranged at the top of the lower die seat, and the plurality of positioning pins are inserted into the corresponding through holes.

[0011] Preferably, the threads at both ends of the worm are in opposite directions.

[0012] Preferably, the top of each of the plurality of positioning pins is fixedly connected with a protrusion.

[0013] Preferably, one end of the worm is fixedly connected with a crank handle, and the surface of the crank handle is provided with anti-skid lines.

[0014] Compared with the related art, the stamping die material supporting and positioning structure has the following beneficial effects:

[0015] Through the design of the transmission mechanism (including the worm, the worm gear and the rotating rod), the operator can conveniently adjust the position of the eccentric block by rotating the crank handle, so as to realize accurate positioning of different sizes of plate materials. This design not only simplifies the positioning process, but also significantly improves the accuracy and efficiency of positioning, so that the stamping die can adapt to more diversified production needs.

[0016] Since the threads at both ends of the worm are in opposite directions, when the worm rotates, the two worm gears will rotate in opposite directions, driving the two groups of rotating rods to rotate synchronously, thereby driving the eccentric blocks to change the distance and realize accurate positioning of the plate material. This design not only improves the accuracy of positioning, but also ensures the stability of the plate material during the stamping process, effectively avoiding the generation of waste caused by positioning deviation.

[0017] The design of the crank handle fixed at one end of the worm not only makes the adjustment of the transmission mechanism more intuitive and easy to operate, but also improves the safety of operation through the arrangement of anti-skid lines, avoiding accidents caused by slipping. The arrangement of the material guide plate not only provides support and guidance for the plate, but also ensures the accurate placement and positioning of the plate during the stamping process, further improving the stability and durability.

[0018] Through the design of the limiting mechanism (trapezoidal slot, trapezoidal slider and spring), the installation and replacement of the lower die plate become more convenient and fast, the operator only needs to push the new lower die plate, and the clamping and fixing can be realized under the elastic force of the spring, without the need of additional tools and operations, thereby greatly improving the production efficiency and reducing the production cost, the design of the positioning pin ensures the stable connection between the lower die plate and the lower die seat, effectively prevents the possible movement or deformation of the lower die plate during the stamping process, thereby improving the overall stability and durability of the die;

[0019] The stamping die material supporting and positioning structure of the utility model through flexible transmission mechanism and limiting mechanism design, make the die can easily adapt to different size and shape of sheet metal, thereby enhancing the adaptability and scalability of the die. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The stamping die material supporting and positioning structure of the utility model provides a schematic view of the stamping die material supporting and positioning structure.

[0021] Figure 2 The Figure 1 The structure schematic view of the lower die plate is shown.

[0022] Figure 3 The Figure 2 The structure schematic view of the lower die plate is shown.

[0023] Reference numeral in the drawing: 1, lower die seat; 2, guide column; 3, lower die plate; 4, upper die plate; 5, upper die seat; 6, eccentric block; 7, guide plate; 8, positioning pin; 9, worm; 10, worm gear; 11, rotating rod; 12, gear; 13, rack; 14, trapezoidal slot; 15, trapezoidal slider; 16, spring; 17, through hole; 18, crank handle. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0026] Please refer to Figures 1 to 3A stamping die material supporting positioning structure, the stamping die material supporting positioning structure includes: lower die seat 1, eccentric block 6, transmission mechanism, guide plate 7, limiting mechanism and positioning pin 8, the top diagonal of lower die seat 1 is equipped with guide column 2, the top of lower die seat 1 is equipped with lower die plate 3, the top of lower die plate 3 is equipped with upper die plate 4, the top of upper die plate 4 is equipped with upper die seat 5, the both ends of lower die seat 1 are symmetrically equipped with eccentric block 6, transmission mechanism is installed in the inside of lower die seat 1, transmission mechanism drives the rotation of eccentric block 6, for positioning plate material to be punched, the top of lower die seat 1 is symmetrically equipped with guide plate 7, limiting mechanism is installed between guide plate 7 and lower die plate 3, limiting mechanism is used for fixing lower die plate 3, a plurality of positioning pins 8 are installed between lower die seat 1 and lower die plate 3, transmission mechanism includes: worm 9, worm wheel 10 and rotating rod 11, one end of lower die seat 1 is rotatably connected with worm 9, both ends of worm 9 are equipped with threads, both ends of lower die seat 1 are symmetrically rotatably connected with rotating rod 11, the top of two sets of rotating rod 11 is fixedly connected with corresponding eccentric block 6 respectively, the bottom of one group of rotating rod 11 close to worm 9 is fixedly connected with worm wheel 10, both worm wheels 10 are meshingly connected with worm 9, the bottom of two sets of rotating rod 11 is fixedly connected with gear 12, the inside of lower die seat 1 is symmetrically provided with sliding slot penetrating both ends, the inner wall of both sliding slots is slidably connected with rack 13, both racks 13 are meshingly connected with corresponding gear 12 at both ends of lower die seat 1, one end of both racks 13 close to worm 9 is designed as L shape, the thread direction of both ends of worm 9 is opposite, one end of worm 9 is fixedly connected with crank handle 18, the surface of crank handle 18 is provided with anti-skid lines.

[0027] It should be noted that: the thread direction of both ends of worm 9 is opposite, so that the rotation direction of two worm wheels 10 is also opposite, the transmission of gear 12 and rack 13 makes gear 12 rotate in the same direction, so that two sets of eccentric blocks 6 are gathered or opened at the same time, realizing the positioning of plate materials of different sizes, one end of both racks 13 close to worm 9 is designed as L shape, so that gear 12 will be locked when rotating a certain number of turns, preventing rack 13 from disengaging from the meshing connection with gear 12, but when the position of eccentric block 6 needs to be adjusted again, reverse rotating crank handle 18 can be used.

[0028] Please refer to Figure 2 and Figure 3The limiting mechanism includes: trapezoidal groove 14, trapezoidal slider 15 and spring 16. Trapezoidal groove 14 is provided at both ends of the lower template 3. The two guide plates 7 are respectively provided with grooves corresponding to the trapezoidal groove 14 at their ends near the lower template 3. Trapezoidal slider 15 is slidably connected to the inner walls of the two grooves. Multiple sets of springs 16 are respectively fixedly connected to the ends of the two trapezoidal sliders 15 away from the corresponding trapezoidal groove 14. One end of the multiple sets of springs 16 is respectively fixedly connected to the inner wall of the corresponding groove. Through holes 17 are provided at the diagonal of the lower template 3. A round hole corresponding to several through holes 17 is provided at the top of the lower mold base 1. Multiple sets of positioning pins 8 are inserted into the corresponding through holes 17. A protrusion is fixedly connected to the top of the multiple sets of positioning pins 8.

[0029] It should be noted that when the lower template 3 needs to be replaced, first pull the positioning pin 8 out of the through hole 17 of the lower template 3 to release the fixation of the lower template 3. Then, knock or pry the lower template 3 to separate the trapezoidal groove 14 inside it from the trapezoidal slider 15 inside the guide plate 7.

[0030] Place the new lower template 3 in the middle of the lower mold base 1, push the new lower template 3 to squeeze the trapezoidal slider 15 and compress the spring 16 until it is engaged in the trapezoidal groove 14 of the new lower template 3 under the elastic force of the spring 16, thereby limiting and fixing the lower template 3. This design not only improves the stability of the lower template 3, but also makes the installation process simpler and faster. Then, insert the positioning pin 8 into the through hole 17 of the new lower template 3 and pass through the round hole of the lower mold base 1 to ensure the stability and accuracy of the new lower template 3.

[0031] The protrusions fixed to the top of the positioning pin 8 help operators to pick up and put away the pins during disassembly and assembly.

[0032] The working principle of the stamping die material support and positioning structure provided by this utility model is as follows:

[0033] I. Positioning of Sheets of Different Sizes

[0034] When it is necessary to position plates of different sizes, the plates are placed on the guide plate 7. The operator can drive the eccentric block 6 to rotate by adjusting the transmission mechanism. Specifically, the transmission mechanism includes a worm 9, a worm wheel 10 and a rotating rod 11. One end of the worm 9 is fixedly connected to a crank 18. The operator can drive the worm 9 to rotate by rotating the crank 18. Both ends of the worm 9 are threaded, and the thread directions are opposite. This means that when the worm 9 rotates, the two worm wheels 10 will rotate in opposite directions.

[0035] Two worm gears 10 are respectively fixedly connected with two groups of rotating rods 11 which are close to the worm 9, so that when the worm gears 10 rotate, the rotating rods 11 are driven to rotate, and the gears 12 fixedly connected with the bottom of the rotating rods 11 are also driven to rotate, the racks 13 symmetrically and slidably connected in the lower die seat 1 are in meshing connection with the corresponding gears 12 at both ends, so that the rotating rods 11 far away from the worm 9 are also driven to rotate synchronously, and the top of the rotating rods 11 is fixedly connected with the eccentric blocks 6, so that the rotation of the rotating rods 11 further drives the eccentric blocks 6 to rotate;

[0036] Due to the design of the eccentric blocks 6, when they rotate, the distance between them changes, so as to realize the positioning of plate materials of different sizes, and the design not only simplifies the positioning process, but also improves the positioning accuracy and efficiency;

[0037] II. Installation and fixation of the lower die plate 3

[0038] When the lower die plate 3 needs to be replaced, the positioning pin 8 is pulled out of the through hole 17 of the lower die plate 3, and the fixation of the lower die plate 3 is released, then the lower die plate 3 is knocked or pried to separate the trapezoidal slot 14 in the inside of the lower die plate 3 from the trapezoidal sliding block 15 in the inside of the material guide plate 7.

[0039] The new lower die plate 3 is placed in the middle of the lower die seat 1, and the new lower die plate 3 is pushed to extrude the trapezoidal sliding block 15 and compress the spring 16, until the trapezoidal slot 14 in the new lower die plate 3 is clamped in the trapezoidal slot 14 in the new lower die plate 3 under the elastic force of the spring 16, so as to realize the limiting and fixation of the lower die plate 3, which not only improves the stability of the lower die plate 3, but also makes the installation process more simple and fast, then the positioning pin 8 is inserted into the through hole 17 of the new lower die plate 3 and passes through the circular hole of the lower die seat 1, to ensure the stability and accuracy of the new lower die plate 3.

[0040] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation according to the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A material support and positioning structure for a stamping die, characterized in that, The utility model relates to a double eccentricity block type sheet metal stamping device, including: Lower die base (1), the top diagonal of lower die base (1) is equipped with guide pillar (2), the top of lower die base (1) is equipped with lower die plate (3), the top of lower die plate (3) is equipped with upper die plate (4), the top of upper die plate (4) is equipped with upper die base (5); Eccentric block (6), both ends of lower die base (1) are symmetrically equipped with eccentric block (6); Transmission mechanism, the inside of lower die base (1) is equipped with transmission mechanism, transmission mechanism drives the eccentric block rotates, is used for positioning plate material and carries out stamping; Material guide plate (7), the top of lower die base (1) is symmetrically equipped with material guide plate (7); Limiting mechanism, the between material guide plate (7) and lower die plate (3) is equipped with limiting mechanism, limiting mechanism is used for fixing lower die plate (3); Positioning pin (8), between lower die base (1) and lower die plate (3) is equipped with multiple positioning pins (8).

2. The press die material positioning structure according to claim 1, wherein Transmission mechanism includes: worm (9), worm wheel (10) and rotating rod (11), one end of lower die base (1) is rotatably connected with worm (9), both ends of worm (9) are equipped with threads, both ends of lower die base (1) are symmetrically rotatably connected with rotating rod (11), the top of two groups of rotating rod (11) is fixedly connected with corresponding eccentric block (6) respectively, the bottom of one group of rotating rod (11) near worm (9) is fixedly connected with worm wheel (10) respectively, two worm wheels (10) are meshed with worm (9) connection.

3. The material positioning structure for a press die according to claim 2, wherein The bottom of two groups of rotating rod (11) is fixedly connected with gear (12), the inside of lower die base (1) is symmetrically provided with the sliding slot of through both ends, the inner wall of two sliding slots is slidably connected with rack (13), two rack (13) are meshed with corresponding gear (12) of both ends of lower die base (1), one end of two rack (13) near worm (9) is designed as L shape.

4. The material positioning structure for a press die according to claim 1, wherein Limiting mechanism includes: trapezoidal groove (14), trapezoidal sliding block (15) and spring (16), both ends of lower die plate (3) are provided with trapezoidal groove (14), one end of two material guide plates (7) near lower die plate (3) is respectively provided with recess corresponding to trapezoidal groove (14), the inner wall of two recesses is slidably connected with trapezoidal sliding block (15), one end of two trapezoidal sliding blocks (15) away from corresponding trapezoidal groove (14) is respectively fixedly connected with multiple springs (16), one end of multiple springs (16) is respectively fixedly connected with the inner wall of corresponding recess.

5. The material positioning structure for a press die according to claim 1, wherein Both diagonal of lower die plate (3) are provided with through hole (17), the top of lower die base (1) is provided with round hole corresponding to several through hole (17), multiple positioning pins (8) are inserted with corresponding through hole (17).

6. The material positioning structure for a press die according to claim 2, wherein The thread direction of both ends of worm (9) is opposite.

7. The material positioning structure for a press die according to claim 1, wherein The top of multiple positioning pins (8) is fixedly connected with protruding block.

8. The material holding positioning structure for a press die according to claim 2, wherein One end of worm (9) is fixedly connected with crank handle (18), the surface of crank handle (18) is provided with anti -skid line.

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