Stamping die with corner protection structure

Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die with a corner protection structure. According to the technical scheme, the stamping die comprises a fixed die body and a movable die body, a forming cavity is formed in the center of the upper end of the fixed die body, a stamping head is arranged at the position, corresponding to the forming cavity, of the movable die body, corner grooves are formed in an opening in the upper end of the forming cavity and corners of the bottom of the stamping head, and reinforcing metal strips are installed in the corner grooves. Insertion holes are formed in the back faces of the reinforcing metal strips, and installation assemblies are arranged at the positions, corresponding to the insertion holes, in the side walls of the corner grooves. According to the stamping die, the detachable reinforcing metal strips are used as corners of the forming cavity and the stamping head, so that the strength of the corners can be improved, the risk of abrasion and corner chipping caused by stress concentration is reduced, and even if the stamping die is damaged, the stamping die can be repaired with lower cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch die technical field, concretely is a punch die with corner protection structure. BACKGROUND

[0002] Punch die is a kind of pressure processing method that material is separated or plastically deformed by the pressure of die installed on the press machine at room temperature, so as to obtain the required parts, and is widely used in the production of household appliances, electronic communication, automobile, energy, machinery, information, aerospace, national defense industry and daily life.

[0003] In the working process of punch die, the corner is easy to be damaged, because the corner part bears larger stress in the stamping process of punch die, is prone to wear, corner collapse, crack and other damage phenomena, and the wear of die corner is more serious when the hardness of stamping material is higher, and punch die is mainly integrated structure, the whole needs to be repaired when corner is damaged, and when it cannot be repaired, the whole die will be scrapped, and the repair cost is also relatively high. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a punch die with corner protection structure to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: including fixed die and movable die, the fixed die upper end center position is equipped with forming cavity, the movable die is not and corresponding position with forming cavity is provided with punch head, the forming cavity upper end opening and punch head bottom corner are all equipped with corner slot, the corner slot is installed with reinforcing metal strip, the reinforcing metal strip back surface is provided with bushing, and the corner slot side wall and the corresponding position with bushing are provided with mounting assembly.

[0006] Preferably, the mounting assembly includes a plug rod and a cross-shaped turn plate, the plug rod is installed in the corner slot side wall, the plug rod is one-to-one corresponding with the bushing, and the end is inserted into the corresponding bushing, the cross-shaped turn plate is rotatably connected to the fixed die and the movable die, the fixed die and the movable die are provided with grooves, and the cross-shaped turn plate is located in the grooves.

[0007] Preferably, the corner slot and the corresponding position with plug rod are equipped with expansion slot, the expansion slot is slidably connected with square block, the square block is fixedly connected with plug rod, and the expansion slot is rotatably connected with threaded rod, and the threaded rod end is screw-connected in the square block.

[0008] Preferably, a transmission groove is arranged in the corner groove sidewall and aligned with the telescopic groove and the cross-shaped rotating plate, the threaded rod is located in the transmission groove away from the square block, and a driven bevel gear is fixed to the threaded rod, the transmission groove is provided with a driving bevel gear rotating synchronously with the cross-shaped rotating plate, and the driving bevel gear and the driven bevel gear are engaged.

[0009] Preferably, a positioning rod is fixed to the bottom of the reinforcing metal strip, and a positioning hole is arranged in the bottom of the corner groove and corresponding to the positioning rod.

[0010] Preferably, a guide rod is fixed to the four corners of the movable die, and a guide hole is arranged in the four corners of the fixed die and matched with the guide rod.

[0011] Compared with the prior art, the stamping die with the corner protection structure has the advantages that: the detachable reinforcing metal strip is arranged at the corners of the forming cavity and the stamping head, so that the corner strength is increased, the stress concentration is reduced, the wear and corner collapse risk are reduced, and even when damage occurs, the repair can be carried out at a low cost. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view of the stamping die with the corner protection structure according to the utility model;

[0013] Figure 2 It is a front view of the stamping die with the corner protection structure according to the utility model; Figure 1 It is an enlarged structure diagram of position A in the stamping die with the corner protection structure according to the utility model;

[0014] Figure 3 It is a top view of the stamping die with the corner protection structure according to the utility model;

[0015] Figure 4 It is an appearance structure diagram of the reinforcing metal strip of the stamping die with the corner protection structure according to the utility model.

[0016] In the figure: 1, fixed die; 11, forming cavity; 2, movable die; 21, stamping head; 22, guide rod; 3, corner groove; 31, positioning hole; 4, reinforcing metal strip; 41, positioning rod; 42, insertion hole; 5, mounting assembly; 51, insertion rod; 52, telescopic groove; 53, square block; 54, threaded rod; 55, transmission groove; 56, driven bevel gear; 57, driving bevel gear; 58, cross-shaped rotating plate. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0018] Please refer to Figures 1-4 The utility model provides a technical scheme: including fixed mould 1 and movable mould 2, the fixed mould 1 upper end center position is seted up with forming cavity 11, movable mould 2 all and with the corresponding position of forming cavity 11 is provided with punch head 21, and the upper end opening of forming cavity 11 is seted up with the edge angle groove 3 with punch head 21 bottom corner, and the edge angle groove 3 is installed with the reinforcing metal strip 4, and the reinforcing metal strip 4 back is provided with the jack 42, and the side wall in the edge angle groove 3 and with the corresponding position of jack 42 is provided with installation component 5, and movable mould 2 four corners are fixed with guide rod 22, and the fixed mould 1 four corners are seted up with the guide hole of being suitable for guide rod 22.

[0019] Installation component 5 includes plug rod 51 and cross transfer board 58, and plug rod 51 is installed in the side wall of edge angle groove 3, and plug rod 51 is corresponding with jack 42, and the end is inserted in the corresponding jack 42, and cross transfer board 58 is rotatably connected on fixed mould 1 and movable mould 2, and fixed mould 1 and movable mould 2 are provided with recess, and cross transfer board 58 is located in recess, and the corresponding position of the edge angle groove 3 in jack 42 is seted up with telescopic groove 52, and square block 53 is slidably connected in telescopic groove 52, and square block 53 is fixedly connected with plug rod 51, and telescopic groove 52 is rotatably connected with threaded rod 54, and the end of threaded rod 54 is screwedly connected in square block 53, and the side wall in the edge angle groove 3 and with telescopic groove 52 and cross transfer board 58 alignment position is seted up with transmission groove 55, and the end, away from square block 53 of threaded rod 54, is located in transmission groove 55, and is fixed with driven bevel gear 56, and transmission groove 55 is provided with driving bevel gear 57 that is synchronous with cross transfer board 58, and driving bevel gear 57 and driven bevel gear 56 engage, and the bottom of reinforcing metal strip 4 is fixed with positioning rod 41, and the bottom of edge angle groove 3 and with the corresponding position of positioning rod 41 is seted up with positioning hole 31.

[0020] Working principle: by rotating the cross-shaped rotating plate 58, the driving bevel gear 57 can be driven to rotate, and through the transmission of the driven bevel gear 56, the threaded rod 54 can be driven to rotate, at this time the square block 53 is driven to perform extension and retraction movement in the extension and retraction slot 52, and finally the plug rod 51 is driven to perform extension and retraction, when the plug rod 51 is inserted into the plug hole 42, because the positioning rod 41 of the reinforced metal bottom is inserted into the positioning hole 31, therefore the reinforced metal strip 4 can be fixed, otherwise the reinforced metal strip 4 can be freely disassembled, after the reinforced metal strip 4 is fixed, because of the stronger strength of its surface, the risk of damage of the whole mold corner can be reduced, and when damage occurs, the reinforced metal strip 4 can be independently repaired or replaced, greatly reducing the repair cost.

[0021] It should be noted that in this document, relationship terms such as first and second are used only to differentiate one entity or action from another, and do not necessarily require or imply these entities or actions have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0022] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stamping die with a corner protection structure, comprising a fixed die (1) and a movable die (2), characterized in that: The forming cavity (11) is arranged at the center of the upper end of the fixed mold (1), the stamping head (21) is arranged at the corresponding position of the forming cavity (11) on the movable mold (2), the corner slot (3) is arranged at the upper opening of the forming cavity (11) and the bottom corner of the stamping head (21), the reinforcing metal strip (4) is arranged in the corner slot (3), the bushing (42) is arranged on the back of the reinforcing metal strip (4), and the mounting assembly (5) is arranged in the sidewall of the corner slot (3) and at the corresponding position of the bushing (42).

2. The stamping die with corner protection structure according to claim 1, characterized in that: The mounting assembly (5) comprises the insertion rod (51) and the cross rotating plate (58), the insertion rod (51) is arranged in the sidewall of the corner slot (3), the insertion rod (51) corresponds to the bushing (42), the end of the insertion rod (51) is inserted into the corresponding bushing (42), the cross rotating plate (58) is rotatably connected to the fixed mold (1) and the movable mold (2), the recess is arranged on the fixed mold (1) and the movable mold (2), and the cross rotating plate (58) is arranged in the recess.

3. The stamping die with corner protection structure according to claim 2, characterized in that: The expansion slot (52) is arranged in the corner slot (3) and at the corresponding position of the insertion rod (51), the square block (53) is slidably connected in the expansion slot (52), the square block (53) is fixedly connected with the insertion rod (51), and the threaded rod (54) is rotatably connected in the expansion slot (52).

4. The stamping die with corner protection structure according to claim 3, characterized in that: The transmission slot (55) is arranged in the sidewall of the corner slot (3) and at the aligned position of the expansion slot (52) and the cross rotating plate (58), one end of the threaded rod (54) away from the square block (53) is located in the transmission slot (55) and is fixedly connected with the driven bevel gear (56), the transmission slot (55) is provided with the driving bevel gear (57) which rotates synchronously with the cross rotating plate (58), and the driving bevel gear (57) and the driven bevel gear (56) are meshed.

5. The stamping die with corner protection structure according to claim 1, characterized in that: The positioning rod (41) is fixed to the bottom of the reinforcing metal strip (4), and the positioning hole (31) is arranged in the bottom of the corner slot (3) and at the corresponding position of the positioning rod (41).

6. The stamping die with corner protection structure according to claim 1, characterized in that: The guide rod (22) is fixed to the four corners of the movable mold (2), and the guide hole is arranged at the four corners of the fixed mold (1) and is matched with the guide rod (22).

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