Metal stamping die capable of being rapidly replaced

Abstract

The utility model relates to the field of stamping dies, in particular to a metal stamping die capable of being replaced quickly, which comprises a bottom frame, a lower die and an upper die, linear guide grooves are arranged on the left side and the right side of the upper portion of the bottom frame, bucket-shaped guide grooves are arranged at the front ends of the linear guide grooves, and side cavities are arranged at the left end and the right end of the inside of the bottom frame. A comb-shaped frame is arranged on the side, close to the linear guide groove, of the interior of the side cavity, balls are rotationally installed at the upper end and the lower end of the end, close to the linear guide groove, of the comb-shaped frame, and a driving screw is rotationally installed at the end, away from the linear guide groove, of the exterior of the comb-shaped frame. And a sliding strip is arranged outside the driving screw and located in the side cavity in a threaded fit mode, and bottom strips are welded to the left side and the right side of the lower portion of the lower mold correspondingly. The bottom frame is arranged to be matched with the combination of the bottom strips on the lower portion of the lower die and the guide grooves on the upper portion of the bottom frame, so that the stamping die is convenient and fast to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, and specifically to a metal stamping die with quick die change. Background Technology

[0002] Metal stamping dies are specialized tools that use a punch press to process metal sheets (such as steel, aluminum, and copper plates) into predetermined shapes and sizes through punching, bending, stretching, flanging, and forming. Essentially, they precisely control the shape and properties of metal materials through the geometry and movement of the die.

[0003] The upper die of a metal stamping die is installed at the bottom of the punch of a punch press by bolts or a pressure plate, and the lower die is rigidly connected to the worktable of the punch press by bolts or a T-slot. When changing or disassembling the metal stamping die, the upper die is lowered so that its lower part rests on the upper part of the lower die. Then the fixing of the upper and lower dies is removed, and the upper and lower dies are moved from the worktable to the upper part of a trolley or other lifting and moving equipment. Then the stamping die is replaced and the installation is carried out in reverse. Since the upper die is placed on the upper part of the lower die, the weight is large and the friction is large, which makes it inconvenient to align and fine-tune the lower die with the worktable. Therefore, a metal stamping die with quick die changing is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects and provide a quick-change metal stamping die. When disassembling and assembling the lower die, the comb frame moves to the linear guide groove and cooperates with the ball bearings to make the alignment and movement of the lower die more convenient. This solves the technical problem of existing metal stamping molds being difficult to align and fine-tune due to their large weight and high friction.

[0005] The objective of this utility model is achieved through the following means:

[0006] A quick-change metal stamping die includes a base frame, a lower die, and an upper die. The base frame is located below the lower die, and the upper die is located above the lower die. The upper part of the base frame has linear guide grooves on both the left and right sides, and a bucket-shaped guide groove is formed at the front end of each linear guide groove. The base frame has side cavities on both the left and right sides. A comb-shaped frame is located inside each side cavity near the linear guide groove. Ball bearings are rotatably mounted on both the upper and lower ends of the comb-shaped frame near the linear guide groove. A drive screw is rotatably mounted on the outer end of the comb-shaped frame away from the linear guide groove. A slide bar is threadedly fitted inside the side cavity outside the drive screw. An inner plate is located inside the side cavity away from the linear guide groove. A pneumatic push rod is positioned between the inner plate and the slide bar. Bottom strips are welded to the lower left and right sides of the lower die, and these bottom strips are adapted to the linear guide grooves.

[0007] Furthermore, the slide bar is slidably connected to the side cavity, and the inner plate is welded and fixed to the base frame.

[0008] Furthermore, the pneumatic push rod is fixed to the inner plate by screws, and the end of the pneumatic push rod away from the inner plate is in contact with the slide bar. The pneumatic push rod is used to push the slide bar to drive the drive screw and comb frame to move toward the linear guide groove.

[0009] Furthermore, a support block is provided inside the side cavity at the interval of the comb frame, and the support block is welded to the base frame. The support block is used to support the inside of the side cavity.

[0010] Furthermore, an extension handle is fixed to one outer end of the drive screw by a screw, and a crank handle is rotatably mounted on one outer end of the extension handle.

[0011] Furthermore, side plates are welded to the lower left and right sides of the base frame, and through holes are provided on the front and rear sides of the interior of the side plates. The through holes are used for fasteners to pass through, thereby connecting the side plates to the worktable of the punch press.

[0012] The beneficial effects of this utility model are:

[0013] This invention, by installing a base frame on the upper part of the worktable of the punch press, allows the bottom strip of the lower die to be quickly aligned under the guidance of the bucket-shaped guide groove. Combined with the linear guide groove and internal ball bearings, the lower die can be easily moved back and forth under the guidance of the linear guide groove, thus achieving rapid adjustment. Subsequently, the comb frame and ball bearings are removed. When disassembling the stamping die, the comb frame and ball bearings are moved to the lower part of the bottom strip to support it, facilitating the sliding out of the lower die. In summary, this invention enables rapid die changing in the punch press, solving the problems mentioned in the background art. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This is a perspective view of the base frame structure of this utility model;

[0016] Figure 3 This is a plan sectional view of the base frame structure of this utility model;

[0017] Figure 4 This is a perspective view of the lower mold and upper mold of this utility model with their bottoms facing upwards.

[0018] In the diagram: 1. Base frame; 2. Lower mold; 3. Upper mold; 4. Straight guide groove; 5. Bucket-shaped guide groove; 6. Side plate; 7. Perforation; 8. Side cavity; 9. Inner plate; 10. Drive screw; 11. Extension handle; 12. Crank handle; 13. Sliding bar; 14. Comb frame; 15. Ball bearing; 16. Support block; 17. Bottom strip; 18. Pneumatic push rod. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention relates to a quick-change metal stamping die, comprising a base frame 1, a lower die 2, and an upper die 3. The base frame 1 is located at the lower part of the lower die 2, and the upper die 3 is located at the upper part of the lower die 2. Straight guide grooves 4 are provided on both the left and right sides of the upper part of the base frame 1, and a bucket-shaped guide groove 5 is provided at the front end of the straight guide grooves 4. Side cavities 8 are provided at both the left and right ends of the interior of the base frame 1. A comb-shaped frame 14 is provided inside the side cavity 8 near the straight guide grooves 4. Both ends of the groove 4 are rotatably mounted with ball bearings 15. The comb frame 14 is rotatably mounted with a drive screw 10 at the end opposite to the linear guide groove 4. The drive screw 10 is located inside the side cavity 8 and is fitted with a slide bar 13 by thread. The side cavity 8 is located on the side opposite to the linear guide groove 4 and has an inner plate 9. A pneumatic push rod 18 is provided between the inner plate 9 and the slide bar 13. The lower mold 2 has bottom strips 17 welded to the left and right sides of the lower part, and the bottom strips 17 are adapted to the linear guide groove 4.

[0021] like Figure 3 As shown, the slide bar 13 is slidably connected to the side cavity 8, and the inner plate 9 is welded and fixed to the base frame 1.

[0022] like Figure 2 and Figure 3 As shown, the pneumatic push rod 18 is fixed to the inner plate 9 by screws. The end of the pneumatic push rod 18 away from the inner plate 9 is in contact with the slide bar 13. The pneumatic push rod 18 is used to push the slide bar 13 to drive the drive screw 10 and the comb frame 14 to move toward the linear guide groove 4.

[0023] like Figure 3 As shown, a support block 16 is provided inside the side cavity 8 at the interval of the comb frame 14, and the support block 16 is welded to the base frame 1. The support block 16 is used to support the inside of the side cavity 8.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, an extension handle 11 is fixed to one end of the drive screw 10 by a screw, and a crank handle 12 is rotatably mounted on one end of the extension handle 11.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, side plates 6 are welded to the lower left and right sides of the base frame 1. The front and rear sides of the side plate 6 are provided with through holes 7. The through holes 7 are used for fasteners to pass through, thereby connecting the side plate 6 to the worktable of the punch press.

[0026] The usage process of a quick-change metal stamping die in this embodiment is as follows: The base frame 1 is fixed to the upper part of the worktable of the punch press by bolts or other fasteners passing through the through holes 7. When installing the stamping die, the stacked stamping dies are moved to the upper side of the base frame 1 using a transport vehicle. The bottom strip 17 of the lower die 2 is aligned with the bucket-shaped guide groove 5. Then, the lower die 2 is pushed toward the bucket-shaped guide groove 5, and the bottom strip 17 enters the bucket-shaped guide groove 5. Under the guidance of the bucket-shaped guide groove 5 and the support of the ball bearings 15, it enters the straight guide groove 4. In this way, the lower die 2 and the upper die 3 stacked on top can be easily moved and aligned in the punch press. After the stamping die is moved to the required position, the crank handle 12 is turned to make the extension handle 11 rotate, which in turn drives the drive screw 10 to rotate. The rod 10 and the slide bar 13, in a threaded engagement, convert the rotational motion of the drive screw 10 into the linear motion of the drive screw 10, thereby pulling the comb frame 14 away from the bottom bar 17, thus completing the installation of the lower mold 2. The installation of the upper mold 3 is the same as that of a conventional stamping mold. The punch of the press is lowered and the upper mold 3 is connected to the bottom of the punch using a connector. When it is necessary to disassemble the stamping mold, the punch handle is lowered to disassemble the connector between the upper mold 3 and the punch. The pneumatic push rod 18 is activated to push the slide bar 13, which in turn drives the drive screw 10 to push the comb frame 14 and the ball bearing 15 to the lower part of the bottom bar 17 inside the linear guide groove 4. The ball bearing 15 reduces the moving resistance of the bottom bar 17 and the comb frame 14, making it easier to remove the stamping mold.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A quick die change metal stamping die comprising a base frame (1), a lower die (2) and an upper die (3), the base frame (1) being provided at a lower portion of the lower die (2), and the upper die (3) being provided at an upper portion of the lower die (2), characterized in that: The upper part of the chassis (1) is provided with linear guide grooves (4) on the left and right sides, the front end of the linear guide groove (4) is provided with a bucket-shaped guide groove (5), the left and right ends of the inside of the chassis (1) are provided with side cavities (8), the inside of the side cavity (8) is provided with a comb-shaped frame (14) near the side of the linear guide groove (4), the upper and lower ends of the comb-shaped frame (14) near one end of the linear guide groove (4) are rotatably installed with ball bearings (15), the outer end of the driving screw (10) is rotatably installed with a driving screw (10) outside the comb-shaped frame (14) away from the linear guide groove (4), the outer end of the driving screw (10) is provided with a sliding bar (13) inside the side cavity (8) through thread cooperation, the side of the inside of the side cavity (8) away from the linear guide groove (4) is provided with an inner plate (9), the inner plate (9) and the sliding bar (13) are provided with a pneumatic push rod (18), the lower mold (2) is welded with a bottom bar (17) on the left and right sides of the lower part, and the bottom bar (17) is matched with the linear guide groove (4).

2. The quick die change metal stamping die of claim 1, wherein: The sliding bar (13) is slidably connected with the side cavity (8), and the inner plate (9) is welded and fixed with the chassis (1).

3. The quick die change metal stamping die of claim 1, wherein: The pneumatic push rod (18) is fixed with the inner plate (9) by screws, and the end of the pneumatic push rod (18) away from the inner plate (9) is attached to the sliding bar (13).

4. The quick die change metal stamping die of claim 1, wherein: The inside of the side cavity (8) is provided with a support block (16) at the interval of the comb-shaped frame (14), and the support block (16) is welded and connected with the chassis (1).

5. The quick die change metal stamping die of claim 1, wherein: The outer end of the driving screw (10) is fixed with an extension handle (11) by screws, and the outer end of the extension handle (11) is rotatably installed with a crank (12).

6. The quick die change metal stamping die of claim 1, wherein: The lower part of the chassis (1) is welded and connected with a side plate (6) on the left and right sides, and the inside of the side plate (6) is provided with perforations (7) on the front and rear sides.

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