A fixing structure of a continuous die edge punch

Abstract

The utility model relates to punch die technical field, concretely is a kind of fixed structure of continuous die trimming punch. Upper die holder lower end is equipped with upper clamping plate, upper clamping plate lower end is equipped with stripper plate and trimming punch, several installation grooves are equipped in upper clamping plate, installation groove is T-shaped groove, square joint pin fixing sleeve is equipped in installation groove, gasket is equipped between square joint pin fixing sleeve and installation groove side wall, square joint pin fixing sleeve upper end is outwardly convex to form hanging table along circumferential side, upper joint pin hole is equipped in square joint pin fixing sleeve, lower joint pin hole is equipped in trimming punch, one end of joint pin is connected through upper joint pin hole and square joint pin fixing sleeve, the other end of joint pin is connected through lower joint pin hole and trimming punch. Compared with prior art, solve the quality problem that product appears burr due to blanking gap deviation during the production process of mould, improve the connection strength by the fixed mode of joint pin fixing sleeve and joint pin, and it is convenient to adjust blanking gap.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a fixed structure for a continuous die-cutting edge punch. Background Technology

[0002] Stamping dies play a vital role in modern industrial production; however, traditional punch fixing methods have many shortcomings. Currently common punch fixing methods include: using square keys, but this method has poor precision and is generally only suitable for forming punches, rarely used for trimming punches; milling grooves in the die base and inserting the punch into it, then fixing it with screws; this method, due to its short fixing dimension and high punch height, is prone to tilting during production, resulting in unstable positioning; and adding an upper backing plate and upper clamping plate to fix the punch in the clamping plate, but this method is costly, occupies a large space, requires wire cutting of grooves in the clamping plate, and cannot adjust the clearance afterward, easily leading to cost waste and increased die storage space. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a fixing structure for a continuous die cutting punch, including an upper die base and a lower die base. The lower end of the upper die base is provided with an upper clamping plate, and the lower end of the upper clamping plate is provided with a stripper plate and a cutting punch. The stripper plate has a through hole in its center for the cutting punch to pass through. The cutting punch passes through the through hole and slides up and down relative to the stripper plate. The upper end of the lower die base is provided with a lower pad plate, and the upper end of the lower pad plate is provided with a lower die cutting edge plate. The cutting punch and the lower die cutting edge plate are fitted together. The upper clamping plate contains several... The mounting groove is a T-shaped groove, and a square locking sleeve is provided inside the mounting groove. A gasket is provided between the square locking sleeve and the side wall of the mounting groove. The upper end of the square locking sleeve protrudes outward along the periphery to form a hanging platform. The square locking sleeve has an upper locking pin hole, and the cutting punch has a lower locking pin hole. One end of the locking pin is connected to the square locking sleeve through the upper locking pin hole, and the other end of the locking pin is connected to the cutting punch through the lower locking pin hole. The outer contour of the locking pin is set to correspond to the inner contour of the upper locking pin hole and the lower locking pin hole.

[0004] The cutting punch has several fixing screws at one end, and the other end of the fixing screws is connected to the clamping plate.

[0005] The lower die cutter plate and the lower pad plate are fixedly connected by fasteners.

[0006] The diameter of the connecting pin is matched with the length of the cutting punch, with the length of the cutting punch ranging from 50mm to 300mm and the diameter of the connecting pin ranging from 6mm to 16mm.

[0007] The aforementioned interlocking pin and the upper and lower interlocking pin holes are interference-fitted, and the length of the interlocking pin is less than or equal to the sum of the lengths of the upper and lower interlocking pin holes.

[0008] Compared with the prior art, this utility model solves the quality problems such as burrs on products caused by the misalignment of the punching clearance during the production process of the mold, and solves the cost waste caused by space problems in the design process. By using the fixing sleeve and the fixing method of the pin, the connection strength is improved and the punching clearance is easy to adjust. There is no need to add extra pads and clamps, which reduces the overall space occupied by the mold. The mold is safe and reliable and the cost of the mold is reduced. Attached Figure Description

[0009] Figure 1 This is a schematic cross-sectional view of the present invention.

[0010] See Figure 1 1. Upper mold base, 2. Upper clamping plate, 3. Stripper plate, 4. Trimming punch, 5. Lower mold base, 6. Lower backing plate, 7. Lower mold cutting edge plate, 8. Mounting groove, 9. Square connecting pin fixing sleeve, 10. Upper connecting pin hole, 11. Lower connecting pin hole, 12. Connecting pin, 13. Fixing screw, 14. Product. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] like Figure 1 A fixing structure for a continuous die-cutting punch includes an upper die base 1 and a lower die base 5. The lower end of the upper die base 1 is provided with an upper clamping plate 2, and the lower end of the upper clamping plate 2 is provided with a stripper plate 3 and a cutting punch 4. The stripper plate 3 has a through hole in its center for the cutting punch 4 to pass through. The cutting punch 4 passes through the through hole and slides up and down relative to the stripper plate 3. The upper end of the lower die base 5 is provided with a lower pad plate 6, and the upper end of the lower pad plate 6 is provided with a lower die cutting edge plate 7. The cutting punch 4 and the lower die cutting edge plate 7 are fitted together. The upper clamping plate 2 has several mounting grooves 8, which are T-shaped grooves. The mounting groove 8 is provided with a square locking sleeve 9. A gasket is provided between the square locking sleeve 9 and the side wall of the mounting groove 8. The upper end of the square locking sleeve 9 protrudes outward along the periphery to form a hanging platform. The square locking sleeve 9 is provided with an upper locking hole 10. The cutting punch 4 is provided with a lower locking hole 11. One end of the locking pin 12 is connected to the square locking sleeve 9 through the upper locking hole 10. The other end of the locking pin 12 is connected to the cutting punch 4 through the lower locking hole 11. The outer contour of the locking pin 12 is correspondingly set with the inner contours of the upper locking hole 10 and the lower locking hole 11.

[0013] The cutting punch 4 has several fixing screws 13 at one end, and the other end of the fixing screws 13 is connected to the clamping plate 2.

[0014] The lower die cutter plate 7 and the lower backing plate 6 are fixedly connected by fasteners to ensure the stability of the lower die section.

[0015] The diameter of the connecting pin 12 is matched with the length of the cutting punch 4. The length of the cutting punch 4 ranges from 50mm to 300mm, and the diameter of the connecting pin 12 ranges from 6mm to 16mm, satisfying the following relationship: when the length of the cutting punch 4 is ≤ 50mm, the diameter of the connecting pin 12 is 6mm. For every 50mm increase in the length of the punch 4, the diameter of the connecting pin 12 increases by 2mm.

[0016] The pin 12 is interference-fitted with the upper pin hole 10 and the lower pin hole 11, and the length of the pin 12 is less than or equal to the sum of the lengths of the upper pin hole 10 and the lower pin hole 11.

[0017] The upper clamping plate 2 and the square locking pin 9 are processed by wire cutting.

[0018] In use, the square retaining sleeve 9 is inserted into the upper clamping plate 2 through the mounting slot 8. Then, the cutting punch 4 is assembled with the upper clamping plate 2 using the square retaining sleeve 9 and the retaining pin 12 via interference fit, and finally locked with the fixing screw 13. When an unreasonable clearance is found during mold production, simply remove the retaining sleeve 9 and adjust the position and thickness of the shims to adjust the installation position of the cutting punch 4, improving the flexibility of the mold. After adjusting the locking screw, a quick trial molding can be performed. This avoids the situation where a new punch must be replaced when an unreasonable punch clearance is found, thus increasing costs.

Claims

1. A fixing structure of a continuous die edge-punching tool, comprising an upper die holder (1) and a lower die holder (5), characterized in that: The upper mold base (1) is provided with an upper clamping plate (2) at its lower end. The upper clamping plate (2) is provided with a stripper plate (3) and a cutting punch (4) at its lower end. The stripper plate (3) has a through hole in the center for the cutting punch (4) to pass through. The cutting punch (4) passes through the through hole and slides up and down relative to the stripper plate (3). The lower mold base (5) is provided with a lower pad plate (6) at its upper end. The lower pad plate (6) is provided with a lower mold cutting edge plate (7) at its upper end. The cutting punch (4) and the lower mold cutting edge plate (7) are fitted together. The upper clamping plate (2) is provided with several mounting grooves (8). The mounting grooves (8) are T-shaped grooves. The mounting grooves (8) are provided with square locking pins (). 9) A gasket is provided between the square pin fixing sleeve (9) and the side wall of the mounting groove (8). The upper end of the square pin fixing sleeve (9) protrudes outward along the periphery to form a hanging platform. The square pin fixing sleeve (9) is provided with an upper pin hole (10) and the cutting punch (4) is provided with a lower pin hole (11). One end of the pin (12) is connected to the square pin fixing sleeve (9) through the upper pin hole (10) and the other end of the pin (12) is connected to the cutting punch (4) through the lower pin hole (11). The outer contour of the pin (12) and the inner contours of the upper pin hole (10) and the lower pin hole (11) are correspondingly set.

2. The fixing structure of a continuous die edge punch according to claim 1, characterized in that: The cutting punch (4) has a plurality of fixing screws (13) at one end, and the other end of the fixing screws (13) is connected to the clamping plate (2).

3. The fixing structure of a continuous die edge punch according to claim 1, characterized in that: The lower die cutter plate (7) and the lower pad plate (6) are fixedly connected by fasteners.

4. The fixing structure of a continuous die edge punch according to claim 1, characterized in that: The diameter of the connecting pin (12) is matched with the length of the cutting punch (4). The length of the cutting punch (4) ranges from 50mm to 300mm, and the diameter of the connecting pin (12) ranges from 6mm to 16mm.

5. The fixing structure of a continuous die-cutting edge punch according to claim 1, characterized in that: The pin (12) is press-fitted with the upper pin hole (10) and the lower pin hole (11), and the length of the pin (12) is less than or equal to the sum of the lengths of the upper pin hole (10) and the lower pin hole (11).

Images