Bending forming die structure of round terminal

Abstract

The utility model discloses a bending forming die structure for a round terminal. The bending forming die structure comprises a first die assembly and a second die assembly, wherein the first die assembly is used for bending the terminal at a first angle; the second die assembly is used for bending the terminal at a second angle; the first movable groove obliquely extends; the first bending piece is arranged in the first movable groove and moves back and forth in the extending direction of the first movable groove. A second movable groove extending up and down is formed in the floating block in a penetrating mode, the upper end of a second bending piece extends inwards into the second movable groove, so that bending of a first angle is completed through the inclined first bending piece, and then the whole 90-degree bending process is completed through the arrangement of the second bending piece. According to the bending die, the bending part on the die is prevented from directly and vertically acting on the side wall of the rounding structure, the later 90-degree bending process can be completed, the using limitation of the bending die is smaller, the rounding structure can be prevented from being damaged, and the bending quality of a product is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to terminal bending field technology especially is a kind of round terminal bending forming die structure. BACKGROUND

[0002] The connector is also called connector. It is also called connector and socket in China, and it is generally referred to as electrical connector. It is a device for connecting two active devices to transmit current or signal. The male end and the female end can transmit information or current after contact, also known as connector. The basic performance of connector can be divided into three categories: mechanical performance, electrical performance and environmental performance. Another important mechanical performance is the mechanical life of connector. Mechanical life is actually a durability index. During the processing of connector, terminal is an important component for connecting with external.

[0003] After the terminal is formed, it needs to be partially bent. The existing terminal is bent by external bending die. The existing die bends the terminal product by pressing the upper die and cooperating with the bending head to form a one-time bending. When the round product is bent by 90°, the existing bending head will act vertically on the side wall of the round structure of the product to be bent, which cannot realize 90° bending process, and has large use limitation. Therefore, it is necessary to study a new technical scheme to solve the above problems. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of round terminal bending forming die structure to effectively solve the problems that the existing terminal bending die cannot realize 90° bending, cannot bend for round structure and has large use limitation.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of round terminal bending forming die structure, comprising first die assembly for first angle bending of terminal and second die assembly for second angle bending of terminal;

[0007] The first mold assembly comprises a first fixed block, a first bending piece, a first material-removing block and a clamping plate block; the first fixed block is arranged on the external first lower mold, the upper end surface of the first fixed block is provided with a first material placing position, the upper end surface of the first fixed block is inwardly recessed to form a bending groove, the bending groove is located beside the first material placing position, a first movable groove is formed in the first fixed block and communicates with the bending groove, and the first movable groove extends obliquely; the first bending piece is arranged in the first movable groove and moves back and forth along the extension direction of the first movable groove, the upper end of the first bending piece is protrudingly provided with a first bending head matched with the product, and the first bending head moves back and forth in the bending groove; the first material-removing block is arranged on the external first material-removing plate and moves back and forth along with the external first material-removing plate, and the first material-removing block corresponds to the first material placing position in position; the clamping plate block is arranged in the external first upper mold and moves back and forth along with the first upper mold, the clamping plate block extends downwardly beyond the external first material-removing plate and promotes the obliquely upward movement of the first bending piece.

[0008] The second mold assembly comprises a second fixed block, a floating block, a second bending piece and a second material-removing block; the second fixed block is arranged on the external second lower mold; the floating block is arranged on the external second lower mold and located directly above the second fixed block in a floating manner, the floating block is provided with a second material placing position, and the floating block is provided with a second movable groove extending upwardly and downwardly in a penetrating manner, and the upper end opening of the second movable groove is located beside the second material placing position; the lower end of the second bending piece is fixedly installed on the second fixed block, the upper end of the second bending piece extends inwardly into the second movable groove, the upper end of the second bending piece extends upwardly to form a second bending head, and the second bending head extends into the second material placing position beside the floating block along with the movement of the floating block; the second material-removing block is arranged on the external second material-removing plate and moves back and forth along with the external second material-removing plate, the second material-removing block is located directly above the floating block and drives the floating block to float downwardly.

[0009] As a preferred scheme, the first bending head extends upwardly from the side of the first bending piece close to the first material placing position; during bending, the first bending head is in contact with the inner side wall of the circular structure of the part to be bent of the product and bends the product.

[0010] As a preferred scheme, the first material placing position is arranged in two left-right symmetrical positions, and the two first material placing positions are located on the left and right sides of the bending groove; correspondingly, the first movable groove, the first bending piece and the clamping plate block are also arranged in two left-right symmetrical positions.

[0011] As a preferred scheme, the first bending member comprises a first body part arranged obliquely and a second body part arranged transversely, the first bending head is located at the upper end of the first body part, the lower end of the first body part is provided with a first guide surface extending obliquely, the side of the second body part close to the first body part is provided with a second guide surface matched with the first guide surface, and the side of the second body part away from the first body part is provided with a third guide surface, and the lower end of the clamping plate is provided with a fourth guide surface matched with the third guide surface.

[0012] As a preferred scheme, the first body part and the external first lower die are clamped with a first spring for facilitating resetting of the first body part, and the second body part and the external first lower die are clamped with a second spring for facilitating resetting of the second body part.

[0013] As a preferred scheme, the first feeding position is concave with a first positioning hole matched with the product, and correspondingly, the first material removing block is provided with a first positioning rod extending downward from the first material removing block, and the lower end of the first positioning rod extends downward into the first positioning hole along with the movement of the first material removing block.

[0014] As a preferred scheme, the lower end surface of the first material removing block is concave with a giving-up groove matched with the first bending groove.

[0015] As a preferred scheme, the second feeding position is two positions arranged symmetrically left and right, and each feeding position is correspondingly provided with a second movable groove on the side, and correspondingly, the second bending member is also two members, and each second bending member extends into the corresponding second movable groove.

[0016] As a preferred scheme, the lower end surface of the second material removing block is concave inward with a second giving-up groove corresponding to the second movable groove.

[0017] As a preferred scheme, the second bending head is arranged close to the side of the second feeding position, and when bending, the second bending head contacts and bends the side wall of the circular structure close to the second feeding position in the product to be bent.

[0018] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, from the above technical scheme, it can be known that:

[0019] By setting first die assembly for first angle bending of terminal and second die assembly for second angle bending of terminal, and cooperating with first movable groove extending obliquely, the first bending piece is arranged in the first movable groove and moves back and forth along the extending direction of the first movable groove, the second movable groove extending upward and downward is arranged on the floating block, the upper end of the second bending piece extends into the second movable groove, so that the first angle bending is completed by the oblique first bending piece, and the overall 90° bending process is completed by the second bending piece, avoiding that the bent part on the die directly vertically acts on the side wall of the round structure, so that the 90° bending process is completed, the use limitation is smaller, the round structure is avoided from being damaged, and the bending quality of the product is ensured.

[0020] In order to make the structure characteristics and functions of the utility model more clear, the utility model will be described in detail below by combining with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the use state schematic diagram of the first die assembly in the preferred embodiment of the utility model;

[0022] Figure 2 is the three-dimensional structure schematic diagram of the first die assembly in the preferred embodiment of the utility model;

[0023] Figure 3 is the cross section schematic diagram of the first die assembly in the preferred embodiment of the utility model;

[0024] Figure 4 is the use state schematic diagram of the second die assembly in the preferred embodiment of the utility model;

[0025] Figure 5 is the three-dimensional structure schematic diagram of the second die assembly in the preferred embodiment of the utility model;

[0026] Figure 6 is the exploded assembly schematic diagram of the second die assembly in the preferred embodiment of the utility model;

[0027] Figure 7 is the cross section schematic diagram of the second die assembly in the preferred embodiment of the utility model.

[0028] BRIEF DESCRIPTION OF DRAWINGS:

[0029] 10, first die assembly 101, bending groove

[0030] 102, first movable groove 103, first guide surface

[0031] 104, second guide surface 105, third guide surface

[0032] 106, fourth guide surface 107, first positioning hole

[0033] 108, let go of the slot 11, the first fixed block

[0034] 111, the first put in place 12, the first bending piece

[0035] 121, the first bending head 122, the first main part

[0036] 123, the second main part 124, the first spring

[0037] 125, the first spring 13, the first put in place

[0038] 14, the first put in place 20, the second mold assembly

[0039] 201, the second movable slot 202, the second let go of the slot

[0040] 21, the second fixed block 22, the floating block

[0041] 221, the second put in place 23, the second bending piece

[0042] 231, the second bending head 24, the second put in place

[0043] 31, the first lower die 32, the first put in place

[0044] 33, the first upper die 41, the second lower die

[0045] 42, the second put in place. DETAILED DESCRIPTION

[0046] Please refer to Figures 1 to 7 Fig. 1 shows the specific structure of the preferred embodiment of the utility model, which includes the first mold assembly 10 for the first angle bending of the terminal and the second mold assembly 20 for the second angle bending of the terminal.

[0047] The first mold assembly 10 comprises a first fixed block 11, a first bending piece 12, a first material removal block 13 and a clamping plate block 14; the first fixed block 11 is arranged on the external first lower die 31, and the upper end surface of the first fixed block 11 is provided with a first material placing position 111, which is used for placing the product to be bent during bending; the upper end surface of the first fixed block 11 is inwardly recessed to form a bending groove 101, and the bending groove 101 is located beside the first material placing position 111; when bending, the product is placed on the first material placing position 111, and the round structure to be bent is inserted into the bending groove 101. A first movable groove 102 is formed in the first fixed block 11 and communicates with the bending groove 101, and the first movable groove 102 extends obliquely; the first bending piece 12 is arranged in the first movable groove 102 and moves back and forth along the extension direction of the first movable groove 102, and the upper end of the first bending piece 12 is provided with a first bending head 121 matched with the product, which moves back and forth in the bending groove 101; the first material removal block 13 is arranged on the external first material removal plate 32 and moves back and forth with the external first material removal plate 32, and the first material removal block 13 corresponds to the first material placing position 111 in position; the first material removal block 13 is used for pressing the product on the first material placing position 111 downward. The clamping plate block 14 is arranged in the external first upper die 33 and moves back and forth with the first upper die 33, and the clamping plate block 14 extends downward beyond the external first material removal plate 13 and promotes the first bending piece 12 to move obliquely upward.

[0048] In the embodiment, the inclination angle of the first movable groove 102 is 40°, 45° or 50°, and in other embodiments, the inclination angle of the first movable groove 102 can also be other degrees that meet the requirements of the first angle bending, without limitation, but the inclination angle of the first movable groove 102 cannot be too large or too small, so as to prevent the force acting on the round structure from acting on the side wall of the round structure in a large or small direction, thereby failing to achieve a better bending effect. The first bending head 121 extends upward from the side of the first bending piece 12 close to the first material placing position 111; during bending, the first bending head 121 contacts the inner side wall of the circular structure of the part to be bent of the product and bends the product, so that the bending force provided by the first bending head 121 acts on the side wall of the round structure close to the product during bending, thereby ensuring that the bending force directly acts on the part to be bent, avoiding the deformation and damage of the round structure caused by the bending force acting on the outer side of the round structure, and further ensuring the bending effect.

[0049] The first material placing position 111 is arranged in a left-right symmetrical manner, and the two first material placing positions 111 are located on the left and right sides of the bending groove 101; correspondingly, the first movable groove 102, the first bending piece 12 and the clamping plate block 14 are also arranged in a left-right symmetrical manner, which can simultaneously complete the bending process of two products and ensure the bending efficiency.

[0050] The first bending member 12 comprises a first body part 122 arranged obliquely and a second body part 123 arranged transversely, the first bending head 121 is located at the upper end of the first body part 122, the lower end of the first body part 122 is provided with a first guide surface 103 extending obliquely, the side of the second body part 123 close to the first body part 122 is provided with a second guide surface 104 matched with the first guide surface 103; the side of the second body part 123 away from the first body part 122 is provided with a third guide surface 105, the lower end of the clamping block 14 is provided with a fourth guide surface 106 matched with the third guide surface 105, when bending, the second body part 123 is driven to move transversely by the cooperation of the third guide surface 105 and the fourth guide surface 106, and the first body part 122 is driven to move obliquely upward along the first moving groove 102 by the cooperation of the first guide surface 103 and the second guide surface 104, so as to drive the first bending head 121 to complete the bending process of the first angle. The first spring 124 for promoting the reset of the first body part 122 is clamped between the first body part 122 and the external first lower die 31, and the second spring 125 for promoting the reset of the second body part 123 is clamped between the second body part 123 and the external first lower die 31.

[0051] The first feeding position 111 is concave and provided with a first positioning hole 107 matched with the product, correspondingly, the first material removing block 13 is provided with a first positioning rod (not shown in the figure) extending downward from the first material removing block 13, the lower end of the first positioning rod extends downward into the first positioning hole 107 along with the movement of the first material removing block 13, in the bending process, the first positioning rod (not shown in the figure) can pass through the product downward and be inserted into the first positioning hole 107, so as to position the product and avoid the position deviation of the product in the bending process. The lower end surface of the first material removing block 13 is concave and provided with a first accommodation groove 108 matched with the first bending groove 101, the first accommodation groove 108 is used for accommodating the first bending head 121 and avoiding the interference between the first bending head 121 and the first material removing block 13 in the bending process.

[0052] The second mold assembly 20 comprises a second fixed block 21, a floating block 22, a second bending piece 23 and a second material stripping block 24. The second fixed block 21 is arranged on the external second lower die 41. The floating block 22 is arranged on the external second lower die 41 in a floating manner and is located directly above the second fixed block 21. The floating block 22 is provided with a second material placing position 221. The floating block 22 is provided with a second movable groove 201 extending upward and downward. The upper end of the second movable groove 201 is located beside the second material placing position 221. The second bending piece 23 is fixedly arranged on the second fixed block 21. The upper end of the second bending piece 23 extends into the second movable groove 201. The upper end of the second bending piece 23 extends upward and is provided with a second bending head 231. The second bending head 231 extends into the second material placing position 221 along with the floating block 22. The second material stripping block 24 is arranged on the external second material stripping plate 42 and moves up and down along with the external second material stripping plate 42. The second material stripping block 24 is located directly above the floating block 22 and drives the floating block 22 to move downward.

[0053] In the embodiment, the second material placing position 221 is arranged in a left-right symmetrical manner. Two second movable grooves 201 are arranged beside each second material placing position 221. Correspondingly, two second bending pieces 23 are arranged. Each second bending piece 23 extends into the corresponding second movable groove 201. The two products can be bent simultaneously, which ensures the bending efficiency. The lower end of the second material stripping block 24 is concave inward and is provided with a second accommodation groove 202 corresponding to the second movable groove 201. The second accommodation groove 202 is used for accommodating the second bending head 231. The second bending head 231 is arranged beside the second material placing position 221. When bending, the second bending head 231 is in contact with the side wall of the product to be bent, which ensures the bending quality. In the embodiment, the floating block 22 can move up and down under the action of the external spring.

[0054] The working principle of the embodiment is as follows:

[0055] When 90° bending is performed, the product to be bent is placed on the first material placing position 111 in the first die assembly 10, and the belling structure to be bent is extended into the bending groove 101, then the first upper die 33 is moved downward, and the clamping plate 14 is moved downward, the first upper die 33 will first touch the first stripping plate 32, and the first stripping plate 32 and the first stripping block 13 on the first stripping plate 32 are moved downward, until the first stripping block 13 is pressed against the upper surface of the product, at this time, the first positioning rod (not shown in the figure) penetrates the product downward and extends into the first positioning hole 107, thereby positioning the position of the product, at the same time, the second main body 123 is moved transversely by the clamping plate 14, and the first main body 122 is moved obliquely upward by the second main body 123, thereby the first bending head 121 acts on the side of the belling structure close to the product, and drives the belling structure to bend upward by the first angle; then the first upper die 33 is reset upward, at the same time, the first main body 122 and the second main body 123 are reset under the action of the first spring 124 and the second spring 125 respectively, then the bent semi-finished product is taken out.

[0056] Then the finished product bent by the first die assembly 10 is placed in the second material placing position 221 in the second die assembly 20, and the belling structure is located above the second movable groove 201, then the second upper die is moved downward, and the second stripping plate 42 is moved downward, and the second stripping block 24 is moved downward, the second stripping block 24 is in contact with the floating block 22 to press the product, and the floating block 22 is continuously moved downward, so that the second bending head 231 on the second bending piece 23 is moved upward relative to the floating block 22, and the bending process of the belling structure is completed, then the second upper die is reset upward, then the bent product is taken out.

[0057] The utility model discloses the design emphasis lies in: through being provided with the first die assembly for carrying out first angle bending to terminal and the second die assembly for carrying out second angle bending to terminal, and cooperate first movable groove oblique extension, first bending piece setting in first movable groove and along the extension direction of first movable groove back and forth activity, the second movable groove of extending up and down is penetrated on floating block, and the upper end of second bending piece extends into second movable groove inwards, makes it first through the oblique first bending piece and completes first angle bending, and then the setting of second bending piece completes the bending process of whole 90 DEG, avoids the part of bending on the die and directly vertical effect on the side wall of belling structure, not only can complete 90 DEG bending process, makes it use limitation is smaller, also can avoid damaging belling structure, guarantees the bending quality of product.

[0058] The above merely describes the preferred embodiment of the present application, and is not intended to limit the technical scope of the present application in any way. Any slight modification, equivalent change, and modification made according to the technical essence of the present application shall still fall within the scope of the technical scheme of the present application.

Claims

1. A bending and forming die structure for a circular terminal, characterized in that: It includes a first mold assembly for bending the terminal at a first angle and a second mold assembly for bending the terminal at a second angle; The first mold assembly includes a first fixing block, a first bending component, a first stripper block, and a clamping plate block. The first fixing block is disposed on an outer first lower mold. A first feeding position is provided on the upper surface of the first fixing block. A bending groove is recessed on the upper surface of the first fixing block and is located beside the first feeding position. A first movable groove communicating with the bending groove is provided on the first fixing block, and the first movable groove extends obliquely. The first bending component is disposed in the first movable groove and moves back and forth along the extension direction of the first movable groove. A first bending head that mates with the product is protruding from the upper end of the first bending component, and the first bending head moves back and forth in the bending groove. The first stripper block is disposed on an outer first stripper plate and moves back and forth with the outer first stripper plate. The position of the first stripper block corresponds to the first feeding position. The clamping plate block is disposed in an outer first upper mold and moves back and forth with the first upper mold. The clamping plate block extends downward out of the outer first stripper plate and causes the first bending component to move obliquely upward. The second mold assembly includes a second fixed block, a floating block, a second bending member, and a second stripping feed block. The second fixed block is disposed on the outer second lower mold. The floating block is disposed on the outer second lower mold and is located directly above the second fixed block. The floating block has a second feeding position and a second movable groove extending vertically through it. The upper opening of the second movable groove is located beside the second feeding position. The lower end of the second bending member is fixedly installed on the second fixed block, and the upper end of the second bending member extends inward into the second movable groove. The upper end of the second bending member extends upward to form a second bending head, which extends into the side of the second feeding position as the floating block moves. The second stripping feed block is disposed on the outer second stripping plate and moves back and forth with the outer second stripping plate. The second stripping feed block is located directly above the floating block and causes the floating block to float downward.

2. The circular terminal bending forming die structure according to claim 1, characterized in that: The first bending head extends upward from the side of the first bending part near the first feeding position; during bending, the first bending head contacts the inner wall of the circular structure of the part of the product to be bent and bends the product.

3. The circular terminal bending forming die structure according to claim 1, characterized in that: The first feeding position consists of two symmetrically arranged positions on the left and right sides. The two first feeding positions are located on the left and right sides of the bending groove. Correspondingly, the first movable groove, the first bending part, and the clamping plate block also consist of two symmetrically arranged positions on the left and right sides.

4. The circular terminal bending forming mold structure according to claim 1, characterized in that: The first bending member includes a first main body portion arranged obliquely and a second main body portion arranged laterally. The first bending head is located at the upper end of the first main body portion. A first guide surface extending obliquely is provided at the lower end of the first main body portion. A second guide surface that mates with the first guide surface is provided on the side of the second main body portion close to the first main body portion. A third guide surface is provided on the side of the second main body portion away from the first main body portion. A fourth guide surface that mates with the third guide surface is provided at the lower end of the clamping block.

5. The circular terminal bending forming die structure according to claim 4, characterized in that: A first spring for causing the first main body to reset is sandwiched between the first main body and the external first lower mold, and a second spring for causing the second main body to reset is sandwiched between the second main body and the external first lower mold.

6. The circular terminal bending forming die structure according to claim 1, characterized in that: The first feeding position is recessed with a first positioning hole that mates with the product. Correspondingly, the first unloading block is provided with a first positioning rod that extends downward from the first unloading block. The lower end of the first positioning rod extends downward into the first positioning hole as the first unloading block moves.

7. The circular terminal bending forming die structure according to claim 1, characterized in that: The lower end face of the first unloading block is recessed with a relief groove that mates with the first bending groove.

8. The circular terminal bending forming die structure according to claim 1, characterized in that: The second feeding position consists of two symmetrically arranged left and right sides, and each feeding position has a corresponding second movable groove on its side; correspondingly, there are also two second bending parts, and each second bending part extends inward into the corresponding second movable groove.

9. The circular terminal bending forming die structure according to claim 1, characterized in that: The lower end of the second unloading block is recessed and has a second clearance groove that corresponds to the upper and lower sides of the second movable groove.

10. The circular terminal bending forming mold structure according to claim 1, characterized in that: The second bending head is located near the second feeding position. When bending, the second bending head contacts and bends the side wall of the circular structure of the product to be bent near the second feeding position.

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