Sheet metal part bending die

Abstract

The utility model discloses a sheet metal part bending die, and particularly relates to the technical field of bending dies, the sheet metal part bending die comprises an upper die and a lower die, the bottom of the upper die and the top of the lower die are both provided with mounting grooves, matched die cores are arranged in the two mounting grooves and used for bending sheet metal parts, the inner walls of the sides, far away from each other, of the two mounting grooves are both provided with caulking grooves, and the caulking grooves are embedded in the die cores. And two sleeves distributed front and back are arranged in each of the two embedding grooves, sliding rods are arranged in the two sleeves in a sliding mode, compression springs are fixedly arranged between the top ends of the sliding rods and the inner walls of the tops of the sleeves, and the bottom ends of the sliding rods make contact with the mold core and are used for disassembling the mold core. The die cores convenient to disassemble and replace are arranged in the upper die and the lower die, the machining requirements of different sheet metal parts are met, the bending effect of the sheet metal parts is guaranteed, the two die cores are used for bending the sheet metal parts in a matched mode, the two threaded rods are used for assisting in disassembling the die cores, and machining efficiency is improved. Therefore, a worker can be prevented from being scalded by directly detaching the mold core with hands, and a protection effect can be further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, and more specifically to a bending die for sheet metal parts. Background Art

[0002] Sheet metal parts refer to parts or components processed from metal sheets, and usually need to be processed by processes such as shearing, stamping, bending, and welding. They are widely used in many fields such as automobile manufacturing, aerospace, household appliances, construction, and office equipment. Among them, the bending of sheet metal parts is usually carried out by using a press and a bending die. The bending die usually consists of an upper die and a lower die. The upper die is called a punch, and the lower die is called a die. When the metal sheet is placed in the die and cooperates with the punch through a press, the metal sheet will bend in a specific area of the die, thus forming the required bending shape.

[0003] For example, a bending die for sheet metal parts with the publication number of CN218424949U in the prior art adjusts the distance between two mounting plates through a setting adjustment mechanism, which is convenient for replacing and installing dies with different bending angles and length dimensions, and improves the convenience of work.

[0004] However, the above prior art still has the following problems when in use: Since heat is generated by the friction between the sheet metal part and the die during stamping and bending, after long-term use, the temperature of the die itself is relatively high. When the staff picks up the die by hand, it is easy to be scalded, which poses a certain danger. Based on this, the utility model provides a bending die for sheet metal parts that is convenient for disassembly and replacement and can avoid scalding. Summary of the Utility Model

[0005] In order to overcome the above defects of the prior art, the utility model provides a bending die for sheet metal parts. By arranging a core that can be conveniently disassembled and replaced inside the upper die and the lower die, it meets the processing requirements of different sheet metal parts, ensures the bending effect of the sheet metal parts, bends the sheet metal parts by using two cores in cooperation, and uses two threaded rods to assist in disassembling the core, so as to avoid the staff being scalded when directly disassembling the core by hand, and thus can play a protective role, so as to solve the problems presented in the above background art.

[0006] To achieve the above object, the utility model provides the following technical solution: A bending die for sheet metal parts, comprising an upper die and a lower die. Installation grooves are provided at the bottom of the upper die and the top of the lower die. In both installation grooves, there are provided mating die cores for bending sheet metal parts. On the inner walls of the two installation grooves on the sides away from each other, there are provided embedding grooves. In both embedding grooves, there are provided two sleeves distributed front and back. Inside both sleeves, there is a sliding rod slidably arranged. A compression spring is fixedly arranged between the top end of the sliding rod and the inner wall of the top of the sleeve. The bottom end of the sliding rod contacts the die core for disassembling the die core. At the bottom of the front end of the lower die, there are provided two receiving grooves. In both receiving grooves, there are provided threaded rods. Threaded holes one adapted to the threaded rods are provided on the outer walls of both sides of the two die cores, facilitating the disassembly of the die core.

[0007] In a preferred embodiment, spring pins are fixedly penetrated through both sides of the upper die and both sides of the lower die. On the outer walls of both sides of the two die cores, there are provided slot holes. The spring pins are inserted into the slot holes for fixing the die core and at the same time facilitating the staff to disassemble and assemble the die core for replacement.

[0008] In a preferred embodiment, a grating emitter is fixedly arranged at the front end of the upper die, and a grating receiver adapted to the grating emitter is fixedly arranged at the front end of the lower die.

[0009] In a preferred embodiment, grips are fixedly arranged at the front ends of both threaded rods, facilitating the staff to use the threaded rods.

[0010] In a preferred embodiment, the upper die, the lower die, the die core, each compression spring and each spring pin are all made of high-temperature resistant materials to improve the high-temperature resistance of the upper die, the lower die, the die core, the compression spring and the spring pin.

[0011] In a preferred embodiment, guide rods are fixedly arranged at the four corners of the top end of the lower die, and guide holes adapted to the guide rods are provided at the four corners of the bottom end of the upper die. The four guide rods respectively penetrate through the four guide holes to improve the stability of the upper die during lifting and lowering.

[0012] In a preferred embodiment, two threaded holes two are provided on the inner walls of the two embedding grooves on the sides away from each other. Threads are processed on the outer wall of each sleeve. The sleeve is arranged in the threaded hole two and is threadedly connected to the threaded hole two, facilitating the disassembly of the sleeve and enabling the staff to disassemble the sleeve for replacement.

[0013] The technical effects and advantages of the utility model:

[0014] 1. The utility model meets the processing requirements of different sheet metal parts by arranging replaceable die cores inside the upper die and the lower die, ensuring the bending effect of the sheet metal parts. The two die cores are used in cooperation to bend the sheet metal parts, and two threaded rods are used to assist in disassembling the die cores, so as to avoid the staff being scalded when directly disassembling the die cores by hand, and thus play a protective role.

[0015] 2. The grating emitter and the grating receiver cooperate to protect in front of the upper die and the lower die, avoiding accidental injury to the hands of the staff during stamping and bending, so as to improve the safety of the die during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a structural diagram of the upper die and the lower die of the utility model;

[0018] Figure 3 is a bottom view of the die core and the upper die of the utility model;

[0019] Figure 4 is a sectional view of the sleeve of the utility model;

[0020] Figure 5 is a schematic diagram of using a threaded rod to disassemble the die core of the utility model.

[0021] Reference numerals are: 1. Upper die; 2. Lower die; 3. Installation groove; 4. Die core; 5. Embedded groove; 6. Sleeve; 7. Slide bar; 8. Compression spring; 9. Storage groove; 10. Threaded rod; 11. First threaded hole; 12. Spring bolt; 13. Slot; 14. Grating emitter; 15. Grating receiver; 16. Handle; 17. Guide rod; 18. Guide hole; 19. Second threaded hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Refer to the attached drawings of the specification Figures 1-5, the utility model provides a bending die for sheet metal parts, including an upper die 1 and a lower die 2. Installation grooves 3 are provided at the bottom of the upper die 1 and the top of the lower die 2. Matching die cores 4 are provided in both installation grooves 3 for bending sheet metal parts. Embedding grooves 5 are provided on the inner walls of the two installation grooves 3 away from each other. Two sleeves 6 distributed front and back are provided in each of the two embedding grooves 5. A sliding rod 7 is slidably provided inside each of the two sleeves 6. A compression spring 8 is fixedly provided between the top end of the sliding rod 7 and the inner wall of the top of the sleeve 6. The bottom end of the sliding rod 7 contacts the die core 4 for disassembling the die core 4;

[0024] Then, two receiving grooves 9 are provided at the bottom of the front end of the lower die 2. Threaded rods 10 are provided in both receiving grooves 9. Grips 16 are fixedly provided at the front ends of the two threaded rods 10 to facilitate the staff to use the threaded rods 10. Threaded holes 11 adapted to the threaded rods 10 are provided on the outer walls of both sides of the two die cores 4 to facilitate disassembling the die cores 4. Spring pins 12 are fixedly penetrated through both sides of the upper die 1 and both sides of the lower die 2. Slots 13 are provided on the outer walls of both sides of the two die cores 4. The spring pins 12 are inserted into the slots 13 for fixing the die cores 4 and at the same time facilitating the staff to disassemble and assemble the die cores 4 for replacement;

[0025] Moreover, the upper die 1, the lower die 2, the die core 4, each compression spring 8 and each spring pin 12 are all made of high-temperature resistant materials to improve the high-temperature resistance of the upper die 1, the lower die 2, the die core 4, the compression spring 8 and the spring pin 12, and thus the service life of the upper die 1, the lower die 2, the die core 4, the compression spring 8 and the spring pin 12 can be extended.

[0026] During use, the upper die 1 and the lower die 2 are fixed on a punching machine. Then, the sheet metal part to be bent is placed on the lower die 2. Then, the power component on the punching machine drives the upper die 1 to move downward so that the two die cores 4 cooperate to bend the sheet metal part. The staff first pulls out the two spring pins 12 on the upper die 1. The die core 4 in the upper die 1 slides out of the installation groove 3 automatically under the push of the two compression springs 8 and the sliding rods 7 and falls above the lower die 2. Then, the staff takes out the two threaded rods 10 and screws the threaded rods 10 into the threaded holes 11 on both sides of the die core 4. With the help of the two threaded rods 10, the die core 4 can be taken out. After that, the spring pins 12 on both sides of the lower die 2 are pulled out, and the die core 4 in the lower die 2 is disassembled by using the threaded rods 10 according to the above operation. In this way, different-shaped die cores 4 can be conveniently replaced to meet the processing requirements of different sheet metal parts, improve the bending effect of the sheet metal parts, and through the setting of the threaded rods 10, it can be avoided that the staff is scalded when directly disassembling the die core 4 by hand, and thus a protective effect can be achieved.

[0027] Refer to the attached instructions Figures 1-5, a grating emitter 14 is fixedly provided at the front end of the upper die 1, and a grating receiver 15 adapted to the grating emitter 14 is fixedly provided at the front end of the lower die 2;

[0028] Through the cooperation of the grating emitter 14 and the grating receiver 15, protection is carried out in front of the upper die 1 and the lower die 2. Once an object is detected, the punching machine receives a signal and stops moving downward, avoiding accidentally injuring the hands of the staff during stamping and bending. In this way, the safety of the use of this die can be improved;

[0029] Two threaded holes II 19 are opened on the inner walls of the two opposite sides of the two grooves 5. Threads are processed on the outer walls of each sleeve 6. The sleeve 6 is arranged in the threaded hole II 19 and is threadedly connected with the threaded hole II 19, which is convenient for disassembling the sleeve 6 and facilitating the staff to disassemble the sleeve 6 for replacement;

[0030] Four guide rods 17 are fixedly provided at the four corners of the top end of the lower die 2, and guide holes 18 adapted to the guide rods 17 are opened at the four corners of the bottom end of the upper die 1. The four guide rods 17 respectively penetrate through the four guide holes 18 to improve the stability of the upper die 1 during lifting and lowering.

[0031] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sheet metal bending die, comprising an upper die (1) and a lower die (2), characterized in that: The bottom of the upper mold (1) and the top of the lower mold (2) are both provided with mounting grooves (3), and the two mounting grooves (3) are both provided with matching mold cores (4) for bending sheet metal parts; The inner wall of the two mounting grooves (3) away from each other is provided with an embedding groove (5), and two sleeves (6) distributed front and back are provided in the two embedding grooves (5). Slide rods (7) are slidably provided inside the two sleeves (6), and a compression spring (8) is fixedly provided between the top end of the slide rod (7) and the inner wall of the top of the sleeve (6). The bottom end of the slide rod (7) contacts the mold core (4) and is used for disassembling the mold core (4); The bottom of the front end of the lower mold (2) is provided with two receiving grooves (9), and threaded rods (10) are provided in the two receiving grooves (9). The outer walls of both sides of the two mold cores (4) are provided with threaded holes (11) that are compatible with the threaded rods (10), so as to facilitate the removal of the mold cores (4).

2. A sheet metal bending die according to claim 1, characterized in that: Spring latches (12) are fixedly inserted through both sides of the upper mold (1) and both sides of the lower mold (2), and slots (13) are provided on the outer walls of both sides of the two mold cores (4). The spring latches (12) are inserted into the slots (13) to fix the mold cores (4).

3. The sheet metal bending die according to claim 1, characterized in that: A grating transmitter (14) is fixedly provided at the front end of the upper mold (1), and a grating receiver (15) adapted to the grating transmitter (14) is fixedly provided at the front end of the lower mold (2).

4. The sheet metal bending die according to claim 1, characterized in that: The front ends of the two threaded rods (10) are both fixedly provided with handles (16), so as to facilitate the use of the threaded rods (10).

5. The sheet metal bending die according to claim 2, characterized in that: The upper mold (1), the lower mold (2), the mold core (4), each compression spring (8) and each spring latch (12) are all made of high-temperature resistant materials, so as to improve the high-temperature resistance of the upper mold (1), the lower mold (2), the mold core (4), the compression spring (8) and the spring latch (12).

6. The sheet metal bending die according to claim 1, characterized in that: The four corners of the top end of the lower mold (2) are fixed with guide rods (17), and the four corners of the bottom end of the upper mold (1) are opened with guide holes (18) adapted to the guide rods (17). The four guide rods (17) respectively penetrate the four guide holes (18) to improve the stability of the upper mold (1) when it is lifted or lowered.

7. The sheet metal bending die according to claim 1, characterized in that: Two threaded holes (19) are provided on the inner walls of the two embedding grooves (5) on the sides away from each other. The outer wall of each sleeve (6) is processed with threads. The sleeve (6) is arranged in the threaded hole (19) and is threadedly connected to the threaded hole (19), so that the sleeve (6) is easy to disassemble.

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