Sheet metal product hanging trimming die

Abstract

A metal plate product hanging trimming die comprises an upper die base and a lower die base which are vertically and correspondingly arranged, an upper trimming cutter block is installed in the middle of the lower surface of the upper die base, a lower base plate is installed on the upper surface of the lower die base, a lower clamping plate is installed on the upper surface of the lower base plate, and a lower trimming cutter block is arranged on the lower clamping plate. The side edge of the lower trimming cutter block is matched with the side edge of the upper trimming cutter block; a lower floating block is arranged above the lower clamping plate, the upper surface of the lower floating block is matched with the lower surface of the upper trimming cutter block, the lower end of the lower floating block is connected with one end of a spring, and the surfaces of the lower cushion plate and the lower clamping plate are provided with through holes corresponding to each other; and the other end of the spring penetrates through the through hole and is mounted in the mounting groove. According to the utility model, the defects in the prior art are overcome, the structure is simple, the manufacturing cost is low, the production and maintenance frequency is reduced, and the use cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to stamping processing technology, and specifically relates to a hanging trimming die for sheet metal products. Background Art

[0002] A large number of sheet metal parts are used in automobile parts, and the sheet metal parts are obtained by stamping with a forming die. The blank of the sheet metal part after demoulding cannot be directly used, and the waste material exceeding the size needs to be cut so that the sheet metal part can meet the size requirements for installation.

[0003] In the prior art, the side trimming mechanism of the stamping die for automobile body parts is arranged outside the stamping part, and the side trimming mechanism is pushed by a fixed driving mechanism for side trimming. Such dies usually have a complex structure, high manufacturing cost, and the products are prone to burrs, and the maintenance cost during the production process is high. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a hanging trimming die for sheet metal products, which overcomes the deficiencies of the prior art, has a simple structure, low manufacturing cost, reduced frequency of production maintenance, and greatly reduced use cost.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0006] A hanging trimming die for sheet metal products includes an upper die base and a lower die base arranged corresponding to each other up and down. An upper trimming cutter block is installed in the middle of the lower surface of the upper die base. A lower backing plate is installed on the upper surface of the lower die base. A lower clamping plate is installed on the upper surface of the lower backing plate. A lower trimming cutter block is arranged on the lower clamping plate. The side of the lower trimming cutter block cooperates with the side of the upper trimming cutter block.

[0007] A lower floating block is arranged above the lower clamping plate. The upper surface of the lower floating block cooperates with the lower surface of the upper trimming cutter block. One end of a spring is connected to the lower end of the lower floating block. Through holes corresponding to each other are formed on the surfaces of the lower backing plate and the lower clamping plate. An installation groove is formed on the upper surface of the lower die base. The installation groove is vertically aligned with the through hole. The other end of the spring passes through the through hole and is installed in the installation groove.

[0008] Preferably, the lower die base is connected to a lower supporting plate through a lower pad foot.

[0009] Preferably, a bolt installation groove is formed on the lower surface of the lower die base. A fixing bolt is installed in the bolt installation groove. The stud end of the fixing bolt sequentially passes through the lower die base and the lower backing plate and is threadedly connected to the lower clamping plate.

[0010] Preferably, an outer guide post is provided above the lower die base, and a guide sleeve cooperating with the outer guide post is provided below the upper die base. A buffer spring is arranged on the outer surface of the outer guide post. A steel ball bushing is arranged at the contact part between the outer guide post and the guide sleeve. The upper end of the buffer spring abuts against the lower surface of the steel ball bushing.

[0011] The utility model provides a hanging trimming die for sheet metal products, which has the following beneficial effects: through the mutual cooperation of the upper trimming knife block and the lower floating block, the upper trimming knife block can be pressed on the upper surface of the product. Then, through the elastic action of the spring below the lower floating block, the lower floating block has a displacement amount of floating up and down. Thus, when the upper die base moves downward, the upper trimming knife block and the lower floating block can be driven to move downward together and compress the spring. Therefore, during the downward movement, through the mutual cooperation of the side edges of the upper trimming knife block and the lower trimming knife block, the trimming process of the side edges of the product can be completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the prior art.

[0013] Figure 1 Structural schematic diagram of the present utility model;

[0014] Figure 2 Partial structural schematic diagram of the present utility model;

[0015] Explanation of the reference numerals in the drawings:

[0016] 1. Upper die base; 2. Lower die base; 3. Upper trimming knife block; 4. Lower backing plate; 5. Lower clamping plate; 6. Lower trimming knife block; 7. Lower floating block; 8. Spring; 9. Through hole; 10. Installation groove; 11. Lower pad foot; 12. Lower support plate; 13. Bolt installation groove; 14. Fixed bolt; 15. Outer guide post; 16. Guide sleeve; 17. Buffer spring; 18. Steel ball bushing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model with reference to the drawings in the present utility model.

[0018] Embodiment 1, as Figures 1 to 2 shown, a hanging trimming die for sheet metal products includes an upper die base 1 and a lower die base 2 arranged corresponding to each other up and down. An upper trimming knife block 3 is installed in the middle of the lower surface of the upper die base 1. A lower backing plate 4 is installed on the upper surface of the lower die base 2. A lower clamping plate 5 is installed on the upper surface of the lower backing plate 4. A lower trimming knife block 6 is arranged on the lower clamping plate 5. The side edges of the lower trimming knife block 6 cooperate with the side edges of the upper trimming knife block 3;

[0019] Above the lower clamping plate 5, there is a lower floating block 7. The upper surface of the lower floating block 7 cooperates with the lower surface of the upper trimming cutter block 3. One end of a spring 8 is connected to the lower end of the lower floating block 7. Through holes 9 corresponding to each other are provided on the surfaces of the lower backing plate 4 and the lower clamping plate 5. An installation groove 10 is provided on the upper surface of the lower die base 2. The installation groove 10 is vertically aligned with the through hole 9. The other end of the spring 8 passes through the through hole 9 and is installed in the installation groove 10.

[0020] Working principle:

[0021] During use, the product can be directly hung on the upper surface of the lower floating block 7, and then the upper die base 1 is lowered. Thus, through the cooperation between the upper trimming cutter block 3 and the lower floating block 7, the upper trimming cutter block 3 can be pressed against the upper surface of the product. Then, through the elastic action of the spring 8 below the lower floating block 7, the lower floating block 7 has a displacement amount of floating up and down. Therefore, when the upper die base 1 is lowered, it can drive the upper trimming cutter block 3 and the lower floating block 7 to move downward together and compress the spring 8. Thus, during the downward movement, through the cooperation between the side of the upper trimming cutter block 3 and the side of the lower trimming cutter block 6, the side trimming process of the product can be completed. In this embodiment, the entire mold structure is simple, the manufacturing cost is low, the frequency of production maintenance is reduced, and the use cost is also greatly reduced.

[0022] Embodiment 2, as a further preferred solution of Embodiment 1, the lower die base 2 is connected to a lower support plate 12 through lower support feet 11. Through the combined action of the lower support plate 12 and the lower support feet 11, the lower die base 2 is supported.

[0023] Embodiment 3, as a further preferred solution of Embodiment 1, a bolt installation groove 13 is provided on the lower surface of the lower die base 2. A fixing bolt 14 is installed in the bolt installation groove 13. The stud end of the fixing bolt 14 sequentially passes through the lower die base 2 and the lower backing plate 4 and is threadedly connected to the lower clamping plate 5. Through the fixing bolt 14, the mutual connection and fixation between the lower die base 2, the lower backing plate 4 and the lower clamping plate 5 can be realized, thereby ensuring the stability of the entire mold during use. And when disassembly and maintenance are required, only the fixing bolt 14 needs to be removed, and then the disassembly and maintenance work of the lower backing plate 4 and the lower clamping plate 5 can be carried out.

[0024] Embodiment 4, as a further preferred solution of Embodiment 1, an outer guide post 15 is provided above the lower die base 2, and a guide sleeve 16 cooperating with the outer guide post 15 is provided below the upper die base 1. A buffer spring 17 is provided on the outer surface of the outer guide post 15. A steel ball bushing 18 is provided at the contact part between the outer guide post 15 and the guide sleeve 16. The upper end of the buffer spring 17 abuts against the lower surface of the steel ball bushing 18. Through the guiding movement of the outer guide post 15 in the guide sleeve 16, when the upper die base 1 is lowered, it can play a guiding movement effect on the upper die base 1, thereby ensuring the stability of the upper die base 1 during downward pressing. A certain buffering effect can be achieved through the buffer spring 17.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A sheet metal product trimming die, comprising an upper die base (1) and a lower die base (2) arranged correspondingly above and below, characterized in that: An upper trimming knife block (3) is installed in the middle of the lower surface of the upper die seat (1), a lower pad (4) is installed on the upper surface of the lower die seat (2), a lower clamping plate (5) is installed on the upper surface of the lower pad (4), a lower trimming knife block (6) is arranged on the lower clamping plate (5), and the side edge of the lower trimming knife block (6) cooperates with the side edge of the upper trimming knife block (3); A lower floating block (7) is arranged above the lower clamping plate (5), the upper surface of the lower floating block (7) cooperates with the lower surface of the upper trimming knife block (3), the lower end of the lower floating block (7) is connected to one end of a spring (8), the surfaces of the lower pad (4) and the lower clamping plate (5) are both provided with corresponding through holes (9), the upper surface of the lower die base (2) is provided with a mounting groove (10), the mounting groove (10) and the through hole (9) are vertically opposite, and the other end of the spring (8) passes through the through hole (9) and is installed in the mounting groove (10).

2. A sheet metal product trimming die according to claim 1, characterized in that: A lower supporting plate (12) is connected below the lower die base (2) via a lower pad (11).

3. A sheet metal product trimming die according to claim 1, characterized in that: The lower surface of the lower die base (2) is provided with a bolt installation groove (13), a fixing bolt (14) is installed in the bolt installation groove (13), and the stud end of the fixing bolt (14) passes through the lower die base (2) and the lower pad (4) in sequence and is threadedly connected to the lower clamping plate (5).

4. A sheet metal product trimming die according to claim 1, characterized in that: An outer guide post (15) is arranged above the lower die seat (2), a guide sleeve (16) used in conjunction with the outer guide post (15) is arranged below the upper die seat (1), a buffer spring (17) is arranged on the outer surface of the outer guide post (15), a steel ball bushing (18) is arranged at the contact portion between the outer guide post (15) and the guide sleeve (16), and the upper end of the buffer spring (17) abuts against the lower surface of the steel ball bushing (18).

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