A product inner side punching and waste removing mechanism

Abstract

The utility model provides a product inner side face punch -out waste mechanism, including upper die holder, lower die holder and inner punch -out waste mechanism, upper die holder sets up at the top of lower die holder, and inner punch -out waste mechanism includes inner punch -out loading platform, inner punch -out linkage assembly and inner punch -out waste conveying assembly, and inner punch -out loading platform sets up two groups and is fixed on lower die holder with left -right symmetry, and inner punch -out loading platform includes first mounting seat, second mounting seat, first sliding table, first wear -resisting block, first fixed block and loading plate, and inner punch -out linkage assembly includes second sliding table, first stopper, second stopper, first sliding block, second sliding block, first nitrogen spring, first guide pillar and inner punch -out punch. The advantage of this design is: abandon the cylinder and oil cylinder drive, save the manufacturing cost of equipment, at the same time, realize the vertical punching of work piece, improve the quality of punching, can also save the space between the pair work piece, and improve the punching efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cold pressing and punching technology, and in particular to a waste removal mechanism for punching holes on the inner side of a product. Background Technology

[0002] Cold stamping dies are commonly used to stamp holes in metal workpieces. The punch presses vertically down onto a horizontal workpiece to form through holes, and the punching waste falls vertically into a collection container. Stamping is also used to form holes on automobile bodies. However, as automobile designs evolve, the requirements for parts become more complex, making it difficult to ensure horizontal placement within the stamping die; they must be placed at an angle. Furthermore, automobile parts are generally stamped in pairs. When punching holes perpendicular to the workpiece plane from the inside of paired workpieces, traditional punching structures are very bulky, occupying a large space and resulting in a large gap between the paired workpieces. This necessitates a corresponding increase in the width of the stamping die, leading to high die costs and requiring wider metal raw materials, thus significantly increasing material costs. Therefore, it is necessary to develop a waste removal mechanism for punching holes on the inside of the product, enabling punching from the inside of the workpiece while effectively shortening the gap between workpieces, to solve the aforementioned problems. Summary of the Invention

[0003] The purpose of this utility model is to provide a waste removal mechanism for punching holes on the inner side of a product to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A waste removal mechanism for punching holes on the inner side of a product includes an upper die base, a lower die base, and an inner punching waste removal mechanism. The upper die base is disposed above the lower die base. The inner punching waste removal mechanism includes an inner punching platform, an inner punching linkage assembly, and an inner punching waste conveying assembly. Two sets of inner punching platforms are symmetrically fixed to the lower die base. Each inner punching platform includes a first mounting base, a second mounting base, a first slide, a first wear-resistant block, a first fixing block, and a carrier plate. Both the first and second mounting bases are fixed to the lower die base. The first mounting base corresponds to the outer edge of the second mounting base. On the side, the first mounting base has first guide grooves on both its front and rear sides, with the lower ends of the first guide grooves inclined outwards. A first slide is fixed to the first mounting base and corresponds to the outer side of the first guide groove. Two sets of first wear-resistant blocks are fixed to the first mounting base and respectively correspond to the front and rear sides of the first slide. Both the first slide and the first wear-resistant blocks are arranged parallel to the first guide grooves. A vertical discharge hole is provided inside the second mounting base. A first fixing block is fixed to the upper end of the second mounting base. A carrier plate is fixed to the first fixing block, with the lower end of the carrier plate inclined inwards. The carrier plate has a punching through hole communicating with the blanking hole. The internal punching linkage assembly includes a second slide, a first stop, a second stop, a first slider, a second slider, a first nitrogen spring, a first guide post, and an internal punch. The second slide is fixed below the upper die base. The first and second stops are both fixed on the upper die base and correspond to the inner and outer sides of the second slide, respectively. The upper end of the first slider is slidably connected to the second slide and can slide left and right along the second slide. The lower inner and outer sides of the first slider are respectively provided with a first ramp and a second ramp. The second slider is fixed. The first nitrogen spring is fixed to the outside of the first slider and its elastic extension end abuts against the second stop. The outer end of the first guide post is fixed to the second inclined platform and its inner end is provided with a sliding boss. The first guide post is provided in two sets and corresponds to the front and rear sides of the first mounting base. The two sets of sliding bosses are respectively slidably connected to the two sets of first guide grooves. The upper end of the inner punch is fixed to the first inclined platform and its lower end passes through the punching through hole. The inner punch waste conveying assembly is fixedly installed in the lower die base and corresponds to the lower part of the blanking hole.

[0005] Further description of the present invention: The second slide includes a first L-shaped block, a second L-shaped block, and a second wear-resistant block. The first L-shaped block and the second L-shaped block are both fixed on the upper mold base and correspond to the front and rear sides of the first slider. The first L-shaped block and the second L-shaped block are respectively provided on opposite sides of the first L-shaped block and the second sliding groove. The second wear-resistant block is fixed on the upper mold base. The upper end of the first slider is in contact with the second wear-resistant block. The front and rear sides of the first slider are slidably connected to the first sliding groove and the second sliding groove, respectively.

[0006] Further description of this utility model: The internal punching linkage assembly also includes an elastic clamping assembly, which includes a movable pressure block, a second nitrogen spring, and a second guide post. The movable pressure block is provided with a third sliding groove on its front and rear sides respectively. The upper end of the second guide post is fixed on the first inclined platform, and the lower end of the second guide post is provided with a limiting boss. The limiting boss corresponds to the lower part of the movable pressure block. The second guide post is slidably connected to the third sliding groove. The second nitrogen spring is fixed above the movable pressure block and its elastic extension end abuts against the first inclined platform. Multiple sets of the second nitrogen spring are evenly arranged on the movable pressure block. The internal punching punch passes through the movable pressure block, and the lower end surface of the movable pressure block contacts the upper end surface of the carrier plate.

[0007] The beneficial effects of this utility model are as follows: by setting a first nitrogen spring to drive the first slider to move, the use of cylinders and oil cylinders is eliminated, saving the manufacturing cost of the equipment. At the same time, by setting a second slider and a first guide post on the outside, in conjunction with the first slide table and the first guide groove, the inner punch on the inside is driven to achieve vertical punching of the workpiece, improving the quality of punching. At the same time, it can save the space between pairs of workpieces, further reducing production costs. Through the mold closing action, the inner punch is driven to move in linkage, which also improves the punching efficiency. Attached Figure Description

[0008] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is an exploded structural diagram of the internal punching waste discharge mechanism in this utility model; Figure 3 This is a partial cross-sectional view of the internal punching platform in this utility model; Figure 4 This is a partial cross-sectional view of the internal punching linkage component in this utility model; Explanation of reference numerals in the attached figures: 1. Upper die base; 2. Lower die base; 3. Internal punching waste removal mechanism; 31. Internal punching platform; 311. First mounting base; 3111. First guide groove; 312. Second mounting base; 3121. Blanking hole; 313. First slide; 314. First wear-resistant block; 315. First fixing block; 316. Carrier plate; 3161. Punching through hole; 32. Internal punching linkage assembly; 321. Second slide; 3211. First L-shaped block; 32111. First sliding groove; 3212. Second L-shaped block; 32121. Second sliding groove; 32 13. Second wear-resistant block; 322. First stop block; 323. Second stop block; 324. First slider; 3241. First inclined platform; 3242. Second inclined platform; 325. Second slider; 326. First nitrogen spring; 327. First guide post; 3271. Sliding boss; 328. Internal punch punch; 329. Elastic clamping assembly; 3291. Movable pressure block; 32911. Third sliding groove; 3292. Second nitrogen spring; 3293. Second guide post; 32931. Limiting boss; 33. Internal punch waste conveying assembly. Detailed Implementation

[0009] The present invention will be further described below with reference to the accompanying drawings: like Figures 1 to 4As shown, a waste removal mechanism for punching the inner side of a product includes an upper die base 1, a lower die base 2, and an inner punching waste removal mechanism 3. The upper die base 1 is disposed above the lower die base 2. The inner punching waste removal mechanism 3 includes an inner punching platform 31, an inner punching linkage assembly 32, and an inner punching waste conveying assembly 33. Two sets of inner punching platforms 31 are symmetrically fixed on the lower die base 2. The inner punching platform 31 includes a first mounting base 311, a second mounting base 312, a first slide 313, a first wear-resistant block 314, a first fixing block 315, and a carrier plate 316. Both the first mounting base 311 and the second mounting base 312 are fixed on the lower die base 2. The first mounting base 311 corresponds to the outer side of the second mounting base 312. A first guide groove 3111 is provided on both the front and rear sides. The lower end of the first guide groove 3111 is inclined outward. A first slide 313 is fixed on the first mounting base 311 and corresponds to the outer side of the first guide groove 3111. A first wear-resistant block 314 is fixed on the first mounting base 311. Two sets of the first wear-resistant blocks 314 are provided and respectively correspond to the front and rear sides of the first slide 313. The first slide 313 and the first wear-resistant blocks 314 are both arranged parallel to the first guide groove 3111. A material drop hole 3121 is vertically provided in the second mounting base 312. A first fixing block 315 is fixed to the upper end of the second mounting base 312. A carrier plate 316 is fixed on the first fixing block 315. The lower end of the carrier plate 316 is inclined inward. The carrier plate 316 is provided with... The blanking hole 3121 connects to the stamping through hole 3161. The internal punching linkage assembly 32 includes a second slide 321, a first stop 322, a second stop 323, a first slider 324, a second slider 325, a first nitrogen spring 326, a first guide post 327, and an internal punch 328. The second slide 321 is fixed below the upper mold base 1. The first stop 322 and the second stop 323 are both fixed on the upper mold base 1 and correspond to the inner and outer sides of the second slide 321, respectively. The upper end of the first slider 324 is slidably connected to the second slide 321 and can slide left and right along the second slide 321. The lower inner and outer sides of the first slider 324 are respectively provided with a first inclined platform 3241 and a second inclined platform 3242. 5 is fixed inside the second inclined platform 3242 and slidably connected to the first slide 313. The first nitrogen spring 326 is fixed outside the first slider 324 and its elastic extension end abuts against the second stop 323. The outer end of the first guide post 327 is fixed on the second inclined platform 3242 and the inner end is provided with a sliding boss 3271. The first guide post 327 is provided in two sets and corresponds to the front and rear sides of the first mounting base 311. The two sets of sliding bosses 3271 are slidably connected to the two sets of first guide grooves 3111 respectively. The upper end of the inner punch punch 328 is fixed on the first inclined platform 3241 and the lower end passes through the punching through hole 3161. The inner punch waste conveying assembly 33 is fixedly installed in the lower die base 2 and corresponds to the lower part of the discharge hole 3121.

[0010] Upper die holder 1 and lower die holder 2 are installed on the equipment. The equipment drives upper die holder 1 to rise and fall, completing the actions of mold closing and mold opening. In the mold opening state, the workpiece is conveyed backward by the pushing device, so that the workpiece to be punched is placed on the inner punching platform 31. Pairs of workpieces are placed on the left and right sets of carrier plates 316 respectively. Under the action of the first nitrogen spring 326, the inner end of the first slider 324 contacts the first stop 322. When the mold is closed, when the second slider 325 contacts the first slide table 313, the sliding boss 3271 of the first guide post 327 also enters the first guide groove 3111. As the upper die holder 1 continues to move downward, the sliding boss 3271 moves downward and outward along the first guide groove 3111, and the second slider... 325 also moves on the first slide 313, thereby driving the first slider 324 to move outward relative to the second slide 321. At this time, the elastic extension end of the first nitrogen spring 326 is compressed, and the outward movement of the first slider 324 drives the inner punch 328 to move outward. Simultaneously, driven by the downward movement of the upper die holder 1, the inner punch 328 moves downward and outward relative to the carrier plate 316, thereby punching a hole perpendicular to the workpiece surface. After completing the punching, the inner punch 328 continues to insert into the punching through hole 3161, so that the punching waste falls onto the inner punching waste conveying assembly 33 through the blanking hole 3121. The waste is then transported to a unified collection area by the conveyor belt on the inner punching waste conveying assembly 33. After punching is completed, the die is opened, and the first slider 324 is reset under the drive of the first nitrogen spring 326. The advantages of this design are as follows: by setting a first nitrogen spring 326 to drive the first slider 324 to move, the use of cylinders and oil cylinders is eliminated, saving the manufacturing cost of the equipment. At the same time, by setting a second slider 325 and a first guide post 327 on the outside, in conjunction with the first slide table 313 and the first guide groove 3111, the inner punch 328 is driven to achieve vertical punching of the workpiece, improving the quality of punching. At the same time, it can save space between pairs of workpieces, further reducing production costs. Through the mold closing action, the inner punch 328 is driven to move, which also improves the efficiency of punching.

[0011] The second slide table 321 includes a first L-shaped block 3211, a second L-shaped block 3212, and a second wear-resistant block 3213. The first L-shaped block 3211 and the second L-shaped block 3212 are both fixed on the upper mold base 1 and correspond to the front and rear sides of the first slider 324. The first L-shaped block 3211 and the second L-shaped block 3212 are respectively provided on opposite sides of the first L-shaped block 3211 and the second sliding groove 32121. The second wear-resistant block 3213 is fixed on the upper mold base 1. The upper end of the first slider 324 is in contact with the second wear-resistant block 3213. The front and rear sides of the first slider 324 are slidably connected to the first sliding groove 32111 and the second sliding groove 32121, respectively.

[0012] The first slider 324 slides with the upper mold base 1 through the first sliding groove 32111 and the second sliding groove 32121. By setting the second wear-resistant block 3213, the first slider 324 will not cause wear to the upper mold base 1 during the sliding process. It is also convenient to replace the second wear-resistant block 3213 to ensure the positional accuracy of the first slider 324.

[0013] The internal punching linkage assembly 32 further includes an elastic pressing assembly 329. The elastic pressing assembly 329 includes a movable pressing block 3291, a second nitrogen spring 3292, and a second guide post 3293. The movable pressing block 3291 has a third sliding groove 32911 on its front and rear sides respectively. The upper end of the second guide post 3293 is fixed on the first inclined platform 3241, and the lower end of the second guide post 3293 has a limiting boss 32931. The limiting boss 32931 corresponds to the lower part of the movable pressing block 3291. The second guide post 3293 is slidably connected to the third sliding groove 32911. The second nitrogen spring 3292 is fixed above the movable pressing block 3291 and its elastic extension end abuts against the first inclined platform 3241. Multiple sets of the second nitrogen spring 3292 are evenly arranged on the movable pressing block 3291. The internal punching punch 328 passes through the movable pressing block 3291, and the lower end surface of the movable pressing block 3291 contacts the upper end surface of the carrier plate 316.

[0014] In the open mold state, the movable pressure block 3291 is located at the lowest position under the drive of the second nitrogen spring 3292. At this time, the lower end face of the movable pressure block 3291 contacts the upper end face of the limiting boss 32931, and the lower end of the inner punch 328 corresponds to the inside of the movable pressure block 3291. During the mold closing process, as the movable pressure block 3291 and the inner punch 328 move perpendicularly to the carrier plate 316, the movable pressure plate first contacts the surface of the workpiece, thereby pressing the workpiece onto the carrier plate 316 to improve the subsequent punching accuracy. As the mold closing action continues, the second nitrogen spring 3292 is compressed, the movable pressure block 3291 slides relative to the second guide post 3293, and the inner punch 328 protrudes from the movable pressure block 3291 and punches the workpiece.

[0015] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An in-product inside face piercing and waste removal mechanism, characterized by: The device includes an upper die base, a lower die base, and an internal punching waste removal mechanism. The upper die base is positioned above the lower die base. The internal punching waste removal mechanism includes an internal punching platform, an internal punching linkage assembly, and an internal punching waste conveying assembly. Two sets of internal punching platforms are symmetrically fixed to the lower die base. Each internal punching platform includes a first mounting base, a second mounting base, a first slide, a first wear-resistant block, a first fixing block, and a carrier plate. Both the first and second mounting bases are fixed to the lower die base. The first mounting base corresponds to the outer side of the second mounting base. The first mounting base has a first mounting plate on both its front and rear sides. A guide groove is provided, with its lower end inclined outward. A first slide is fixed on the first mounting base and corresponds to the outer side of the first guide groove. A first wear-resistant block is fixed on the first mounting base. Two sets of the first wear-resistant blocks are provided, corresponding to the front and rear sides of the first slide, respectively. The first slide and the first wear-resistant blocks are both arranged parallel to the first guide groove. A vertical discharge hole is provided inside the second mounting base. A first fixing block is fixed to the upper end of the second mounting base. The carrier plate is fixed on the first fixing block, with its lower end inclined inward. The carrier plate is provided with a material discharge hole. The described blanking hole is a punched through hole. The internal punching linkage assembly includes a second slide, a first stop, a second stop, a first slider, a second slider, a first nitrogen spring, a first guide post, and an internal punch. The second slide is fixed below the upper die base. The first stop and the second stop are both fixed on the upper die base and correspond to the inner and outer sides of the second slide, respectively. The upper end of the first slider is slidably connected to the second slide and can slide left and right along the second slide. The lower inner and outer sides of the first slider are respectively provided with a first inclined platform and a second inclined platform. The second slider is fixed inside the second inclined platform. The first nitrogen spring is fixed on the outside of the first slider and its elastic extension end abuts against the second stop. The outer end of the first guide post is fixed on the second inclined platform and its inner end is provided with a sliding boss. The first guide post is provided in two sets and corresponds to the front and rear sides of the first mounting base. The two sets of sliding bosses are respectively slidably connected to the two sets of first guide grooves. The upper end of the inner punch is fixed on the first inclined platform and its lower end passes through the punching through hole. The inner punch waste conveying assembly is fixedly arranged in the lower die base and corresponds to the lower part of the blanking hole.

2. A product inside face punch and waste removal mechanism according to claim 1 wherein: The second slide includes a first L-shaped block, a second L-shaped block, and a second wear-resistant block. The first L-shaped block and the second L-shaped block are both fixed on the upper mold base and correspond to the front and rear sides of the first slider. The first L-shaped block and the second L-shaped block are respectively provided on opposite sides with a first sliding groove and a second sliding groove. The second wear-resistant block is fixed on the upper mold base. The upper end of the first slider is in contact with the second wear-resistant block. The front and rear sides of the first slider are slidably connected to the first sliding groove and the second sliding groove, respectively.

3. The waste removal mechanism for punching holes on the inner side of a product according to claim 1, characterized in that: The internal punching linkage assembly further includes an elastic clamping assembly, which includes a movable pressure block, a second nitrogen spring, and a second guide post. The movable pressure block has a third sliding groove on its front and rear sides respectively. The upper end of the second guide post is fixed on the first inclined platform, and the lower end of the second guide post has a limiting boss. The limiting boss corresponds to the lower part of the movable pressure block. The second guide post is slidably connected to the third sliding groove. The second nitrogen spring is fixed above the movable pressure block, and its elastic extension end abuts against the first inclined platform. Multiple sets of the second nitrogen spring are evenly arranged on the movable pressure block. The internal punching punch passes through the movable pressure block, and the lower end face of the movable pressure block contacts the upper end face of the carrier plate.

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