Improved hole flanging structure die

Abstract

The utility model relates to the technical field of dies, and discloses an improved hole flanging structure die which comprises a bearing main body, a fixed lower punching die is arranged on the bearing main body, and a punching pipe for punching holes is arranged in an upper punching die. When hole flanging is carried out, the upper punching die is matched with the lower punching die to carry out punching machining, the punching pipe firstly makes contact with the surface of a material, the upper punching die exerts pressure on the material, the punching pipe is matched with the punching groove to punch holes in the material, and the punching pipe is matched with the punching groove to carry out punching machining while pressing down is carried out. Hole flanging is carried out at the punching position, under the action of pressure, plastic deformation is generated on the surface of a material to complete hole flanging, punching and hole flanging are integrated and can be carried out at the same time, the working procedures are reduced, the labor intensity of workers is reduced, the working efficiency is improved, abrasion or tearing is reduced while one punching step is omitted, and the punching machining quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould technical field especially relates to an improved structure mould of hole flanging. BACKGROUND

[0002] Hole flanging is a forming method of punching out vertical edge on the workpiece with pre-made hole or the plate without pre-made hole, and the process is very common in stamping processing, the upper punch is controlled to ascend and descend through the hydraulic telescopic shaft, the upper punch cooperates with the lower punch to carry out stamping processing, the upper punch applies pressure to the material to make it separate or plastically deform, and the hole flanging is completed.

[0003] The existing hole flanging mould needs to punch pre-hole first and then form hole flanging on the pre-punched hole before hole flanging, the hole flanging processing procedure time is increased, the manual labor intensity is increased, the working efficiency is low, multiple punching is easy to cause wear or tearing of the mould, and the quality of stamping processing is affected.

[0004] Therefore, the improved hole flanging structure mould is designed. INVENTION CONTENTS

[0005] The utility model discloses a kind of improved hole flanging structure moulds, to solve the existing hole flanging mould before hole flanging, need to punch pre-hole first, then form hole flanging on the pre-punched hole, the hole flanging processing procedure time is increased, the manual labor intensity is increased, the working efficiency is low, multiple punching is easy to cause wear or tearing of the mould, and the quality of stamping processing is affected.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] An improved hole flanging structure mould, including bearing main body, the fixed lower punch is arranged on the bearing main body, the punching groove of auxiliary punching is arranged on the lower punch, the upper punch is arranged above the lower punch, the upper punch is hollowly arranged, the punching pipe of stamping opening is installed in the upper punch, the punching pipe is coaxial with punching groove and the diameter of the outer side of punching pipe is equal to or less than the diameter of punching groove.

[0008] Preferably, the lower punch is provided with a limiting shell of a protection structure on the outer side, and the limiting shell is fixedly connected to the lower side of the bearing main body.

[0009] Preferably, a buffer block is arranged in the limiting shell, and the buffer block is sleeved on the lower punch, the lower side of the buffer block is hollowly arranged, and the diameter of the hollow part of the buffer block is greater than the outer diameter of the bearing main body, a return spring for buffering is arranged on the lower side of the buffer block, and the return spring is wrapped around the bearing main body.

[0010] Preferably, a die plate is arranged above the upper die, and a plurality of limiting grooves are formed in the die plate, and a plurality of limiting bolts are arranged in the limiting grooves.

[0011] Preferably, a detachable push module is arranged on the die plate, and the plurality of limiting bolts penetrate the die plate and are connected with the push module.

[0012] Preferably, a hydraulic telescopic shaft is arranged at one end of the push module, and the hydraulic telescopic shaft is coaxial with the lower die.

[0013] The utility model discloses the beneficial effects are:

[0014] 1, the utility model discloses a punching pipe of stamping opening is installed in the upper die, and the punching pipe is coaxial with the punching groove, and the diameter of the outer side of the punching pipe is equal to or less than the diameter of the punching groove, when the hole flanging is carried out, the upper die cooperates with the lower die and carries out the stamping processing, the punching pipe will first contact the material surface, the upper die exerts the pressure on the material, and the punching pipe cooperates with the punching groove and punches on the material, then, the hole flanging is carried out at the punching position while being pressed down, and the material surface is deformed plastically under the action of pressure to complete the hole flanging, so that the punching and the hole flanging are integrated, and can be carried out simultaneously, the working procedure is reduced, the artificial labor intensity is reduced, the working efficiency is improved, and one stamping procedure reduces the abrasion or tearing, and the stamping processing quality is improved.

[0015] 2, the utility model discloses that the buffer block is arranged in the limiting shell, and the buffer block is sleeved on the lower die, the buffer block is hollow below, and the diameter of the hollow part of the buffer block is greater than the outer diameter of the load-bearing main body, a return spring for buffering is arranged below the buffer block, and the return spring is surrounded on the load-bearing main body, when the hole flanging is carried out, the upper die cooperates with the lower die and carries out the stamping processing, the buffer block will be displaced downward under the pressure of the upper die, and the return spring is deformed, when the upper die is lifted, the hole flanging is completed, the return spring restores the deformation, the buffer block is displaced upward, and the processed part is pushed upward and away from the lower die, so that automatic demolding is realized, the artificial intensity is reduced, and the processing efficiency is improved. DRAWINGS

[0016] Figure 1 It is an isometric view of the improved hole flanging structure mold provided by the utility model;

[0017] Figure 2 It is a front sectional view of the improved hole flanging structure mold provided by the utility model;

[0018] Figure 3 It is a structure schematic diagram of the upper die of the improved hole flanging structure mold provided by the utility model;

[0019] Figure 4 It is a structure schematic diagram of the lower die of the improved hole flanging structure mold provided by the utility model.

[0020] In the figure: 1, the main body; 2, the lower die; 3, the punching groove; 4, the punching pipe; 5, the upper die; 6, the buffer block; 7, the limiting shell; 8, the reset spring; 9, the limiting bolt; 10, the die plate; 11, the hydraulic telescopic shaft; 12, the pushing module; 13, the limiting groove. DETAILED DESCRIPTION

[0021] Referring to Figures 1-4 The improved structure of the hole turning mold, including the main body 1, the main body 1 is provided with a fixed lower die 2, the lower die 2 is provided with a punching groove 3 for assisting punching.

[0022] Referring to Figure 2 And Figure 3 The upper die 5 is provided above the lower die 2, the upper die 5 is hollow inside, the punching pipe 4 for punching hole is installed in the upper die 5, the punching pipe 4 is coaxial with the punching groove 3, and the outer diameter of the punching pipe 4 is equal to or smaller than the diameter of the punching groove 3, so as to avoid damage to the structure during punching. The upper die 5 is matched with the lower die 2 for punching processing, the punching pipe 4 first contacts the material surface, the upper die 5 applies pressure to the material, and the punching pipe 4 cooperates with the punching groove 3 to punch the material.

[0023] Specifically, the punching pipe 4 for punching hole is installed in the upper die 5, the punching pipe 4 is coaxial with the punching groove 3, and the outer diameter of the punching pipe 5 is equal to or smaller than the diameter of the punching groove 3. When turning the hole, the upper die 5 is matched with the lower die 2 for punching processing, the punching pipe 4 first contacts the material surface, the upper die 5 applies pressure to the material, and the punching pipe 4 cooperates with the punching groove 3 to punch the material. Then, while being pressed down, the hole turning is performed at the punching position. Under the action of the pressure, the material surface is plastically deformed to complete the hole turning. In this way, the punching and hole turning are integrated and can be performed simultaneously, reducing the process and labor intensity, improving the work efficiency, and reducing the wear or tearing by one punching process, which is conducive to improving the punching processing quality.

[0024] The limiting shell 7 with a protection structure is arranged outside the lower die 2, the bottom of the limiting shell 7 is fixedly connected to the lower part of the main body 1, and the limiting shell 7 can limit the deformation of the reset spring 8 and protect the internal structure from external interference and influence.

[0025] Referring to Figure 1 And Figure 4As shown, the limiting shell 7 is provided with a buffer block 6, and the buffer block 6 is sleeved on the lower punch 2, the buffer block 6 is hollow below, and the diameter of the hollow part of the buffer block 6 is greater than the outer diameter of the load-bearing body 1, the diameter of the hollow part of the buffer block 6 is greater than the outer diameter of the load-bearing body 1, so that the buffer block 6 is not hit on the load-bearing body 1 below, and the buffer block 6 is provided with a reset spring 8 below for buffering, and the reset spring 8 is wrapped around the load-bearing body 1.

[0026] Specifically, by providing the buffer block 6 in the limiting shell 7, and the buffer block 6 is sleeved on the lower punch 2, the buffer block 6 is hollow below, and the diameter of the hollow part of the buffer block 6 is greater than the outer diameter of the load-bearing body 1, the buffer block 6 is provided with a reset spring 8 below for buffering, and the reset spring 8 is wrapped around the load-bearing body 1, when the hole is punched, the upper punch 5 cooperates with the lower punch 2 to perform stamping processing, the buffer block 6 will be displaced downward under the pressure of the upper punch 5, and the reset spring 8 will be deformed, when the upper punch 5 is lifted, the hole punching is completed, the reset spring 8 restores the deformation, and pushes the buffer block 6 to displace upward, so as to push the processed parts upward to leave the lower punch 2, realize automatic demolding, reduce manual strength, and improve processing efficiency.

[0027] The upper punch 5 is provided with a punch plate 10 above, a plurality of limiting grooves 13 are formed through the punch plate 10, a plurality of limiting bolts 9 are arranged in the limiting grooves 13, the punch plate 10 is provided with a push module 12 which can be conveniently disassembled, the plurality of limiting bolts 9 penetrate the punch plate 10 and are connected with the push module 12, one end of the push module 12 is provided with a hydraulic telescopic shaft 11, and the hydraulic telescopic shaft 11 is coaxial with the lower punch 2, the plurality of limiting bolts 9 penetrate the punch plate 10 and are connected with the push module 12, and the position of the punch plate 10 can be fixed on the hydraulic telescopic shaft 11.

[0028] The working principle of the utility model is as follows: first, the parts to be punched are placed between the upper punch 5 and the lower punch 2, when punching, the upper punch 5 cooperates with the lower punch 2 to perform stamping processing, the punching pipe 4 first contacts the material surface, the upper punch 5 applies pressure to the material, and the punching pipe 4 cooperates with the punching groove 3 to punch the material.

[0029] Then, the punching position is punched while being pressed, and plastic deformation of the material surface is generated under the action of pressure to complete the punching, so that the punching and punching are integrated and can be performed at the same time, the process is reduced, the manual labor intensity is reduced, the working efficiency is improved, one stamping process is reduced, and the wear or tearing is also reduced, which is helpful to improve the stamping processing quality.

[0030] Finally, the buffer block 6 is arranged in the limiting shell 7, the buffer block 6 is sleeved on the lower punch 2, the buffer block 6 is hollow below, the diameter of the hollow part of the buffer block 6 is greater than the outer diameter of the load-bearing body 1, the reset spring 8 for buffering is arranged below the buffer block 6, the reset spring 8 surrounds the load-bearing body 1, when the hole is punched, the upper punch 5 cooperates with the lower punch 2 to carry out stamping processing, the buffer block 6 is displaced downward under the pressure of the upper punch 5, the reset spring 8 is deformed, when the upper punch 5 is lifted, the hole punching is completed, the reset spring 8 restores the deformation, the buffer block 6 is displaced upward, the processed part is pushed upward to leave the lower punch 2, automatic demolding is realized, the manual strength is reduced, and the processing efficiency is improved.

[0031] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An improved flange structure mold comprising a load bearing main body (1), characterized in that, The load-bearing main body (1) is provided with a fixed lower punch (2), the lower punch (2) is provided with a punching groove (3) for auxiliary punching, the upper punch (5) is arranged above the lower punch (2), the upper punch (5) is hollow, the punching pipe (4) for punching is installed in the upper punch (5), the punching pipe (4) is coaxial with the punching groove (3), and the outer diameter of the punching pipe (4) is equal to or smaller than the diameter of the punching groove (3).

2. The improved flange structure mold according to claim 1, wherein The lower punch (2) is provided with a limiting shell (7) of a protection structure outside, and the limiting shell (7) is fixedly connected to the load-bearing main body (1) below.

3. An improved flange structure mold according to claim 2, wherein The limiting shell (7) is provided with a buffer block (6), the buffer block (6) is sleeved on the lower punch (2), the buffer block (6) is hollow below, the diameter of the hollow part of the buffer block (6) is greater than the outer diameter of the load-bearing main body (1), the buffer block (6) is provided with a reset spring (8) below for buffering, and the reset spring (8) surrounds the load-bearing main body (1).

4. The improved flange structure mold according to claim 1, wherein The upper punch (5) is provided with a punch plate (10) above, a plurality of limiting grooves (13) are arranged through the punch plate (10), and a plurality of limiting bolts (9) are arranged in the limiting grooves (13).

5. An improved flange structure mold according to claim 4, wherein The punch plate (10) is provided with a push module (12) which can be conveniently disassembled, a plurality of limiting bolts (9) penetrate the punch plate (10) and are connected with the push module (12).

6. An improved flange structure mold according to claim 5, wherein One end of the push module (12) is provided with a hydraulic telescopic shaft (11) connection, and the hydraulic telescopic shaft (11) is coaxial with the lower punch (2).

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