One-time punching die for shell

Abstract

The one-time punching die comprises an upper die body, an upper top plate, a lower die body and a lower bottom plate, lower side plates are vertically installed at the front end and the rear end of the lower bottom plate respectively, the lower die body moving up and down is installed between the upper portions of the lower side plates, the upper die body is installed on the upper side of the lower die body, and the upper top plate is installed on the lower side of the upper die body. An upper top plate is installed on the upper end face of the upper die, guide column structures with the upper ends penetrating through the four corners of the lower die are vertically installed at the four corners of the upper end face of the lower bottom plate, supporting springs are installed on the guide column structures in a sleeved mode, and a middle punch with the upper end penetrating through the lower die is vertically installed in the middle of the lower bottom plate. A shell forming head capable of moving up and down is installed in the center of the upper end face of the middle punch. The utility model has the characteristics that the production efficiency of products is improved, the overall cost of the mould is reduced, the product quality is ensured, and the operation stability of the mould is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a punching technology field especially a disposable punching die for shell. BACKGROUND

[0002] When carrying out small shell type products, usually select the punch press to produce, and the conventional punch press needs to select the continuous die as the production tool, when the metal strip passes through the continuous die, through multiple stamping, the forming of the shell is guaranteed, the efficiency of this production mode is very low, and the structure of the continuous die is very complex, which greatly increases the overall cost of the die, in order to solve the above technical problems, it is very necessary to design a new die structure capable of one-time stamping forming. SUMMARY

[0003] The utility model relates to a punching technology field especially a disposable punching die for shell.

[0004] The utility model discloses a disposable punching die for shell, including upper die, upper roof, lower die and lower bottom plate, the lower bottom plate's front and rear end all vertical installation has lower part side plate, the lower part side plate upper portion between installation has the lower die that moves up and down, the lower die upper side installs upper die, the upper end surface of upper die installs upper roof, the lower bottom plate upper end surface four corners vertical installation has the guide column structure that passes through the four corners of lower die, the guide column structure is installed with the support spring of sleeve joint, the middle part of lower bottom plate vertical installation has the middle punch that passes through the lower die, the middle punch upper end surface center position installs the shell forming head that can move up and down, the middle punch's upper end surface middle part and shell forming head between set up punch gap, the lower end surface middle part of upper die sets up for receiving the middle punch upper end receiving recess, the receiving recess middle part installs the shell punch that is matched with shell forming head, the middle part outer ring of shell punch sets up and punch gap matched truncation step.

[0005] In this technical scheme, the upper die and the lower die are installed to ensure that the product can be punched once, and the shell is formed once. Four guide column structures are installed to ensure the operation of the lower die. A support spring is installed to ensure that the lower die can move up and reset. A middle punch and a receiving recess are installed to punch a plate from the metal strip. A shell forming head and a shell punch are installed to facilitate shell forming. A truncation step is provided to punch the excess plate from the shell to ensure the integrity of the shell.

[0006] As a supplement to the technical solution, the upper end surface of the middle punch is provided with a forming head mounting groove in the middle part, a vertical through hole is arranged on the bottom of the forming head mounting groove, the lower end of the shell forming head is provided with a first guide column which is inserted into the vertical through hole, a first return spring is sleeved on the first guide column, and the first return spring is located in the lower end of the forming head mounting groove.

[0007] In the technical solution, the forming head mounting groove is arranged to facilitate the installation of the first return spring and the shell forming head, the first return spring is arranged to facilitate the reset of the shell forming head, and the vertical through hole and the first guide column are arranged to ensure the stable operation of the shell forming head.

[0008] As a supplement to the technical solution, the inner side wall of the receiving groove and the outer side wall of the middle punch form a first punching, and the outer side wall of the punching gap of the middle punch and the cutting step form a second punching.

[0009] In the technical solution, the first punching is arranged to cut a piece of metal sheet from the metal strip, and the second punching is arranged to punch off the excess metal material after the shell is formed.

[0010] As a supplement to the technical solution, the lower end surface of the upper die and the left side of the receiving groove are provided with a blanking assembly, the blanking assembly comprises a blanking guide column, a limiting step and a guide column mounting groove, the left part of the upper end surface of the upper die is provided with a guide column mounting groove, the middle part of the bottom surface of the guide column mounting groove is provided with a guide column through hole, the guide column mounting groove is provided with a blanking guide column, the lower end of the blanking guide column passes through the guide column through hole, the middle part of the blanking guide column is provided with a limiting step matched with the guide column mounting groove, the right side wall of the guide column through hole is provided with a blanking opening communicated with the receiving groove, and the lower end right side of the blanking guide column is provided with a blanking lever inserted into the receiving groove.

[0011] In the technical solution, the guide column mounting groove is arranged to facilitate the installation of the blanking guide column, the limiting step is arranged to limit the position of the blanking guide column, the blanking opening is arranged to facilitate the up and down movement of the blanking lever, and the blanking lever is arranged to peel off the product formed in the receiving groove.

[0012] As a supplement to the technical solution, the upper end of the blanking guide column is provided with a second guide column, the second guide column is sleeved with a second return spring, a groove cover plate is installed in the upper end opening of the guide column mounting groove, and a guide groove for receiving the second guide column is installed in the lower end of the groove cover plate.

[0013] In the technical solution, the second guide column and the guide groove are arranged to facilitate the stable operation of the blanking guide column.

[0014] As a supplement to the technical scheme, the upper end face of the upper die is provided with a limiting groove matched with the upper end of the guide column structure.

[0015] Beneficial effects: the utility model relates to a disposable punching die for a shell, which is used for ensuring that the product can be punched once by installing an upper die and a lower die, ensuring that the shell is formed once, ensuring that the lower die operates by installing four guide column structures, ensuring that the lower die can be reset by installing supporting springs, cutting a plate from a metal strip by installing a middle punch and a receiving groove, facilitating shell forming by installing a shell forming head and a shell punch, cutting the excess plate from the shell by installing a cutting step, ensuring the integrity of the shell, and having the characteristics of improving the production efficiency of the product, reducing the overall cost of the die, ensuring the product quality, and ensuring the stability of the die operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the front view of the utility model;

[0017] Figure 2 is the right view of the utility model;

[0018] Figure 3 is the full sectional view of the middle punch;

[0019] Figure 4 is the top view of the lower die;

[0020] Figure 5 is the bottom view of the upper die;

[0021] Figure 6 is the full sectional view of the blanking assembly.

[0022] Illustration: 1, upper top plate, 2, upper die, 3, lower die, 4, lower side plate, 5, supporting spring, 6, lower bottom plate, 7, middle punch, 8, forming head mounting groove, 9, shell forming head, 10, receiving groove, 11, shell punch, 12, cutting step, 13, blanking assembly, 14, blanking guide column, 15, blanking opening, 16, blanking lever, 17, groove cover plate, 18, guide groove, 19, second reset spring, 20, second guide column, 21, first guide column, 22, vertical through hole, 23, first reset spring, 24, guide column mounting groove, 25, limiting step, 26, guide column through hole, 27, limiting groove. DETAILED DESCRIPTION

[0023] The utility model is further described below in combination with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and not to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0024] The embodiment of the utility model relates to a kind of disposable punching die for shell, such as Figure 1 As shown in Figure 6, it comprises upper die 2, upper top plate 1, lower die 3 and lower bottom plate 6, the front and rear ends of the lower bottom plate 6 are vertically installed with lower side plate 4, the upper and lower moving lower die 3 is installed between the upper part of the lower side plate 4, the upper side of the lower die 3 is installed with upper die 2, the upper end surface of the upper die 2 is installed with upper top plate 1, the upper end surface of the lower bottom plate 6 is vertically installed with guide column structure passing through the four corners of lower die 3, the guide column structure is installed with support spring 5, the middle part of the lower bottom plate 6 is vertically installed with middle punch 7 passing through the middle part of lower die 3, the central position of the upper end surface of the middle punch 7 is installed with shell forming head 9 that can move up and down, the middle punch 7 is provided with punching gap between the upper end surface middle part and shell forming head 9, the middle part of the lower end surface of the upper die 2 is provided with receiving groove 10 for receiving the upper end of middle punch 7, the middle part of the receiving groove 10 is installed with shell punch 11 matched with shell forming head 9, the middle part of the outer ring of the shell punch 11 is provided with truncation step 12 matched with punching gap.

[0025] In the technical solution, the upper die 2 and the lower die 3 are installed to ensure that the product can be punched once, and the shell is formed once, four guide column structures are installed to ensure the operation of the lower die 3, the support spring 5 is installed to ensure that the lower die 3 can move up and reset, the middle punch 7 and the receiving groove 10 are installed to punch a plate from the metal strip, the shell forming head 9 and the shell punch 11 are installed to facilitate the formation of the shell, the truncation step 12 is provided to punch the excess plate from the shell to ensure the integrity of the shell.

[0026] As a supplement to the technical solution, the middle part of the upper end surface of the middle punch 7 is installed with forming head mounting groove 8, the bottom of the forming head mounting groove 8 is provided with vertical through hole 22, the lower end of the shell forming head 9 is provided with first guide column 21 inserted into the vertical through hole 22, the first guide column 21 is sleeved with first reset spring 23, and the first reset spring 23 is located in the lower end of the forming head mounting groove 8.

[0027] The first reset spring 23 is installed to facilitate the reset of the shell forming head 9, and the vertical through hole 22 and the first guide column 21 are installed to ensure the stable operation of the shell forming head 9.

[0028] As a supplement to the technical solution, the inner side wall of the receiving groove 10 and the outer side wall of the middle punch 7 form a first cutting, and the cutting gap of the middle punch 7 and the cutting gap of the middle punch 7 form a second cutting.

[0029] In the technical solution, the first cutting is used to cut a piece of metal from the metal strip, and the second cutting is used to cut off the excess metal after the shell is formed.

[0030] As a supplement to the technical solution, the lower end face of the upper die 2 and the left side of the receiving groove 10 are provided with a blanking assembly 13, the blanking assembly 13 includes a blanking guide column 14, a limiting step 25 and a guide column mounting groove 24, the left part of the upper end face of the upper die 2 is provided with the guide column mounting groove 24, the bottom surface of the guide column mounting groove 24 is provided with a guide column through hole 26, the blanking guide column 14 is installed in the guide column mounting groove 24, the lower end of the blanking guide column 14 passes through the guide column through hole 26, the middle part of the blanking guide column 14 is provided with a limiting step 25 matched with the guide column mounting groove 24, the right side wall of the guide column through hole 26 is provided with a blanking opening 15 communicated with the receiving groove 10, and the lower end of the blanking guide column 14 is provided with a blanking lever 16 extending into the receiving groove 10.

[0031] In the technical solution, the guide column mounting groove 24 is used to facilitate the installation of the blanking guide column 14, the limiting step 25 is used to limit the position of the blanking guide column 14, the blanking opening 15 is used to facilitate the up and down movement of the blanking lever 16, and the blanking lever 16 is used to strip the product formed in the receiving groove 10.

[0032] As a supplement to the technical solution, the upper end of the blanking guide column 14 is provided with a second guide column 20, the second guide column 20 is sleeved with a second reset spring 19, the upper end opening of the guide column mounting groove 24 is provided with a groove cover plate 17, and the lower end of the groove cover plate 17 is provided with a guide groove 18 for receiving the second guide column 20.

[0033] In the technical solution, the second guide column 20 and the guide groove 18 are used to facilitate the stable operation of the blanking guide column 14.

[0034] As a supplement to the technical scheme, the upper die 2 lower end face four corners are provided with limiting grooves 27 matched with the upper end of the guide column structure, and the limiting grooves 27 are used to accommodate the upper end of the guide column structure.

[0035] Embodiment

[0036] When the device works, first, the metal strip enters between the upper die 2 and the lower die 3, and then the mold is closed. The lower end of the blanking assembly 13 is received by the lower die 3 and is retracted. At this time, the upper die 2 and the lower die 3 press the metal strip, and after completion, the upper die 2 is subjected to the downward pressure of the press. The upper die 2 moves downward, and the upper die 2 pushes the lower die 3, so that the middle punch 7 punches the metal strip to fall off a piece of metal sheet, which is used to form the material of the shell.

[0037] Then the middle punch 7 enters the receiving groove 10, and the shell punch 11 pushes the shell forming head 9 to retract, so that the metal sheet can be sleeved on the shell punch 11 to deform. The metal sheet will form a shell structure, and the middle punch 7 will form a second cutting between the inner ring and the cutting step 12, so that the excess material of the metal sheet is cut off, thereby forming a complete shell structure.

[0038] Finally, the mold is opened, and the upper die 2 and the lower die 3 are separated. The blanking guide column 14 is subjected to the action of the second return spring 19, so that the blanking guide column 14 moves downward. The lower end of the blanking guide column 14 moves downward, and the blanking guide column 16 on the lower end of the blanking guide column 14 will move downward. The blanking guide column 16 will peel off the shell on the lower end of the shell punch 11.

[0039] The above describes a one-time punching die for a shell provided by the present application in detail. The principles and implementation modes of the present application are described in the text using specific examples. The above description of the embodiments is only used to help understand the method and its core idea. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A disposable punching die for a housing, comprising an upper die (2), an upper platen (1), a lower die (3) and a lower platen (6), the front and rear ends of said lower platen (6) are vertically provided with lower side plates (4), the upper portions of said lower side plates (4) are provided with a lower die (3) moving up and down, the upper side of said lower die (3) is provided with an upper die (2), the upper end face of said upper die (2) is provided with an upper platen (1), characterized in that: The upper end of the lower bottom plate (6) is vertically installed with a guide column structure penetrating through the four corners of the lower mold (3), the guide column structure is sleeved with a supporting spring (5), the middle part of the lower bottom plate (6) is vertically installed with a middle punch (7) penetrating through the lower mold (3), the upper end surface of the middle punch (7) is installed with a shell forming head (9) capable of moving up and down, the upper end surface of the middle punch (7) is provided with a die cutting gap between the middle part and the shell forming head (9), the middle part of the lower end surface of the upper mold (2) is provided with a receiving groove (10) for receiving the upper end of the middle punch (7), the middle part of the receiving groove (10) is installed with a shell punch (11) matched with the shell forming head (9), and the middle part of the shell punch (11) is provided with a cutting step (12) matched with the die cutting gap.

2. A disposable punch die for a housing according to claim 1, characterized in that: The middle part of the upper end surface of the middle punch (7) is installed with a forming head installation groove (8), the bottom of the forming head installation groove (8) is provided with a vertical through hole (22), the lower end of the shell forming head (9) is provided with a first guide column (21) inserted into the vertical through hole (22), the first guide column (21) is sleeved with a first reset spring (23), and the first reset spring (23) is located in the lower end of the forming head installation groove (8).

3. A disposable punch die for a housing according to claim 1, characterized in that: The inner side wall of the receiving groove (10) and the outer side wall of the middle punch (7) form a first die cutting, and the outer side wall of the die cutting gap of the middle punch (7) and the cutting step (12) form a second die cutting.

4. A disposable punch die for a housing according to claim 1, characterized in that: The lower end surface of the upper mold (2) and the left side of the receiving groove (10) are installed with a blanking assembly (13), the blanking assembly (13) comprises a blanking guide column (14), a limiting step (25) and a guide column installation groove (24), the left part of the upper end surface of the upper mold (2) is provided with the guide column installation groove (24), the middle part of the bottom surface of the guide column installation groove (24) is provided with a guide column through hole (26), the guide column installation groove (24) is installed with the blanking guide column (14), the lower end of the blanking guide column (14) penetrates through the guide column through hole (26), the middle part of the blanking guide column (14) is provided with the limiting step (25) matched with the guide column installation groove (24), the right side wall of the guide column through hole (26) is provided with a blanking opening (15) communicated with the receiving groove (10), and the lower end of the blanking guide column (14) is installed with a blanking lever (16) extending into the receiving groove (10).

5. A disposable punch die for a housing according to claim 4, characterized in that: The upper end of the blanking guide column (14) is provided with a second guide column (20), the second guide column (20) is sleeved with a second reset spring (19), the upper end opening of the guide column installation groove (24) is installed with a groove cover plate (17), and the lower end of the groove cover plate (17) is installed with a guide groove (18) for receiving the second guide column (20).

6. A disposable punch die for a housing according to claim 1, characterized in that: The lower end surface of the upper mold (2) is provided with a limiting groove (27) matched with the upper end of the guide column structure at the four corners.

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