Bending forming die structure of round terminal

Abstract

The invention discloses a bending forming die structure for a round terminal. The bending forming die structure comprises a first die assembly used for bending the terminal at a first angle and a second die assembly 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 invention relates to the technology of terminal bending field, in particular to a bending and forming die structure for a circular terminal. Background Art

[0002] Connectors are also called connectors. In China, they are also called joints and sockets. They generally refer to electrical connectors. That is, a device that connects two active devices to transmit current or signals. The male end and the female end can transmit information or current after contact, which is also called a connector. The basic performance of connectors can be divided into three categories: mechanical performance, electrical performance and environmental performance. Another important mechanical performance is the mechanical life of the connector. Mechanical life is actually a durability indicator. In the connector processing process, the terminal is an important component that connects to the outside.

[0003] After the forming process, the terminal needs to be partially bent. When the existing terminal is bent, it is bent by an external bending mold. When the existing mold is used to bend the terminal product, the upper mold is pressed down and the bending head is used to bend the product once. When the round product is bent 90°, the existing bending head will act vertically on the side wall of the round structure of the product to be bent, and the 90° bending process cannot be achieved, which has great limitations. Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the invention

[0004] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a round terminal bending forming mold structure, which can effectively solve the problems that the existing terminal bending molds cannot achieve 90° bending, cannot bend round structures, and have great usage limitations.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A round terminal bending and forming die structure, comprising a first die assembly for bending the terminal at a first angle and a second die assembly for bending the terminal at a second angle;

[0007] The first mold assembly includes a first fixed block, a first bending part, a first stripping entry block and a clamping plate entry block; the first fixed block is arranged on the first external lower mold, the first fixed block upper end surface is provided with a first discharge position, the first fixed block upper end surface is inwardly concavely provided with a bending groove, the bending groove is located on the side of the first discharge position, the first fixed block is provided with a first movable groove connected to the bending groove, and the first movable groove extends obliquely; the first bending part is arranged in the first movable groove and moves back and forth along the extension direction of the first movable groove, and the upper end of the first bending part is convexly provided with a first bending head matching the product, and the first bending head moves back and forth in the bending groove; the first stripping entry block is arranged on the external first stripping plate and moves back and forth with the external first stripping plate, and the first stripping entry block corresponds to the first discharge position; the clamping plate entry block is arranged in the external first upper mold and moves back and forth with the first upper mold, the clamping plate entry block extends downward from the external first stripping entry plate and prompts the first bending part to move obliquely upward;

[0008] The second mold assembly includes a second fixed block, a floating block, a second bending piece and a second stripping entry block; the second fixed block is arranged on the external second lower mold; the floating block can be arranged on the external second lower mold in a floating manner up and down and is located directly above the second fixed block, a second discharge position is arranged on the floating block, a second movable groove extending up and down is penetrated through the floating block, and the upper end opening of the second movable groove is located beside the second discharge 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, and a second bending head extends upward from the upper end of the second bending piece, and the second bending head extends into the side of the second discharge position with the movement of the floating block; the second stripping entry block is arranged on the external second stripping plate and moves back and forth with the external second stripping plate, the second stripping entry block is located directly above the floating block and drives the floating block to float downward.

[0009] As a preferred solution, the first bending head extends upward from a side of the first bending member close to the first material discharge position; when bending, the first bending head contacts 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 solution, the two first discharge positions are arranged symmetrically on the left and right, and the two first discharge 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 entry block are also arranged symmetrically on the left and right.

[0011] As a preferred solution, the first bending part 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, the lower end of the first main body portion is provided with a first guide surface extending obliquely, and a second guide surface matching 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, and a fourth guide surface matching the third guide surface is provided at the lower end of the clamping plate block.

[0012] As a preferred solution, a first spring for urging the first main body to return to its original position is sandwiched between the first main body and the first external lower mold, and a second spring for urging the second main body to return to its original position is sandwiched between the second main body and the first external lower mold.

[0013] As a preferred solution, the first discharge position is recessed with a first positioning hole that cooperates with the product, and correspondingly, the first stripping block is provided with a first positioning rod that extends downward from the first stripping block, and the lower end of the first positioning rod extends downward into the first positioning hole as the first stripping block moves.

[0014] As a preferred solution, the lower end surface of the first stripping entry block is concavely provided with a clearance groove that cooperates with the first bending groove.

[0015] As a preferred solution, there are two second discharge positions arranged symmetrically on the left and right, and a second movable groove is correspondingly arranged on the side of each discharge position; correspondingly, there are also two second bending pieces, and each second bending piece extends inwardly into the corresponding second movable groove.

[0016] As a preferred solution, the lower end surface of the second stripping entry block is inwardly concavely provided with a second yielding groove corresponding to the second movable groove above and below.

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

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0019] 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 are provided; 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; a second movable groove extending up and down is penetrated on the floating block, and the upper end of the second bending piece extends inwardly into the second movable groove, so that the bending at the first angle is first completed by the oblique first bending piece, and then the overall 90° bending process is completed by the setting of the second bending piece, avoiding the bent part on the mold from directly acting vertically on the side wall of the round structure, not only can the 90° bending process be completed, making it less limited in use, but also avoiding damage to the round structure, thereby ensuring the bending quality of the product.

[0020] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the use state of the first mold assembly in a preferred embodiment of the present invention;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the first mold assembly in a preferred embodiment of the present invention;

[0023] Figure 3 is a cross-sectional schematic diagram of a first mold assembly in a preferred embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of the use state of the second mold assembly in a preferred embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of the three-dimensional structure of the second mold assembly in a preferred embodiment of the present invention;

[0026] Figure 6 It is a schematic diagram of the disassembly and filling of the second mold assembly in the preferred embodiment of the present invention;

[0027] Figure 7 It is a cross-sectional schematic diagram of the second mold assembly in a preferred embodiment of the present invention.

[0028] Description of the accompanying drawings:

[0029] 10. First mold 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, clearance slot 11, first fixing block

[0034] 111, first unloading position 12, first bending part

[0035] 121. first bending head 122. first main body

[0036] 123. Second main body 124. First spring

[0037] 125, first spring 13, first stripping block

[0038] 14. Clamping plate into block 20. Second mold assembly

[0039] 201, second active slot 202, second yield slot

[0040] 21. Second fixed block 22. Floating block

[0041] 221, second unloading position 23, second bending part

[0042] 231, second bending head 24, second stripping block

[0043] 31. First lower die 32. First stripping plate

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

[0045] 42. Second stripping plate. DETAILED DESCRIPTION

[0046] Please refer to Figures 1 to 7 As shown, it shows the specific structure of a preferred embodiment of the present invention, which includes a first mold assembly 10 for bending the terminal at a first angle and a second mold assembly 20 for bending the terminal at a second angle.

[0047] The first mold assembly 10 includes a first fixed block 11, a first bending part 12, a first stripping entry block 13 and a clamping plate entry block 14; the first fixed block 11 is arranged on the external first lower mold 31, and the upper end surface of the first fixed block 11 is provided with a first discharge position 111, and the first discharge position 111 is used to place the product to be bent during bending; the upper end surface of the first fixed block 11 is concavely provided with a bending groove 101, and the bending groove 101 is located beside the first discharge position 111. When bending is performed, the product is placed on the first discharge position 111, and the rounded structure to be bent is extended into the bending groove 101. The first fixed block 11 is provided with a first movable groove 102 connected to the bending groove 101, and the first movable groove 102 extends obliquely; the first bending member 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 member 12 is provided with a first bending head 121 that matches the product, and the first bending head 121 moves back and forth in the bending groove 101; the first stripping entry block 13 is arranged on the external first stripping plate 32 and moves back and forth with the external first stripping plate 32, and the first stripping entry block 13 corresponds to the position of the first discharge position 111; the first stripping entry block 13 is used to move downward to press the product on the first discharge position 111. The clamping plate entry block 14 is arranged in the external first upper mold 33 and moves back and forth with the first upper mold 33, and the clamping plate entry block 14 extends downward from the external first stripping entry plate 13 and prompts the first bending member 12 to move obliquely upward.

[0048] In the present embodiment, the inclination angle of the first movable groove 102 is 40°, 45° or 50°. In other embodiments, the inclination angle of the first movable groove 102 can also be other degrees that meet the first angle bending requirements, without limitation. However, the inclination angle of the first movable groove 102 cannot be too large or too small to prevent the force acting on the round structure from acting on the side wall of the round structure in a larger or smaller direction, thereby failing to achieve a good bending effect. The first bending head 121 extends upward from the side of the first bending member 12 close to the first discharge position 111; when 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 when bending, the bending force provided by the first bending head 121 acts on the side wall of the round structure close to the product, ensuring that the bending force directly acts on the part to be bent, avoiding the bending force acting on the outside of the round structure and causing deformation and damage to the round structure, further ensuring the bending effect.

[0049] The first material discharge positions 111 are arranged symmetrically on the left and right sides, and the two first material discharge positions 111 are located on the left and right sides of the bending groove 101. Correspondingly, the first movable groove 102, the first bending member 12 and the clamping plate entry block 14 are also arranged symmetrically on the left and right sides, so that the bending process of two products can be completed at the same time, ensuring the bending efficiency.

[0050] The first bending member 12 includes a first main body portion 122 arranged obliquely and a second main body portion 123 arranged transversely, the first bending head 121 is located at the upper end of the first main body portion 122, the lower end of the first main body portion 122 is provided with a first guide surface 103 extending obliquely, and the side of the second main body portion 123 close to the first main body portion 122 is provided with a second guide surface 104 cooperating with the first guide surface 103; the side of the second main body portion 123 away from the first main body portion 122 is provided with a third guide surface 105, and the lower end of the clamping plate block 14 is provided with a fourth guide surface 106 cooperating with the third guide surface 105. When bending, the clamping plate block 14 drives the second main body portion 123 to move laterally through the cooperation of the third guide surface 105 and the fourth guide surface 106, and drives the first main body portion 122 to move obliquely upward along the first movable groove 102 through the cooperation of the first guide surface 103 and the second guide surface 104, thereby driving the first bending head 121 to complete the bending process of the first angle. A first spring 124 for causing the first body part 122 to return to its original position is sandwiched between the first body part 122 and the first outer lower mold 31 . A second spring 125 for causing the second body part 123 to return to its original position is sandwiched between the second body part 123 and the first outer lower mold 31 .

[0051] The first discharge position 111 is provided with a first positioning hole 107 that matches the product. Correspondingly, the first stripping block 13 is provided with a first positioning rod (not shown in the figure) that extends downward from the first stripping block 13. The lower end of the first positioning rod extends downward into the first positioning hole 107 as the first stripping block 13 moves. During 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, thereby positioning the product to avoid positional displacement of the product during the bending process. The lower end surface of the first stripping block 13 is provided with a clearance groove 108 that matches the first bending groove 101. The first clearance groove 108 is used to make way for the first bending head 121 to avoid interference between the first bending head 121 and the first stripping block 13 during the bending process.

[0052] The second mold assembly 20 includes a second fixed block 21, a floating block 22, a second bending piece 23 and a second stripping block 24; the second fixed block 21 is arranged on the external second lower mold 41; the floating block 22 can float up and down on the external second lower mold 41 and is located directly above the second fixed block 21, a second discharge position 221 is arranged on the floating block 22, and a second movable groove 201 extending up and down is penetrated on the floating block 22, and the upper end opening of the second movable groove 201 is located beside the second discharge position 221; the second The lower end of the bending member 23 is fixedly mounted on the second fixed block 21, the upper end of the second bending member 23 extends inwardly into the second movable groove 201, and the upper end of the second bending member 23 extends upward with a second bending head 231, and the second bending head 231 extends into the side of the second discharge position 221 as the floating block 22 moves; the second stripping entry block 24 is arranged on the external second stripping plate 42 and moves back and forth up and down with the external second stripping plate 42, the second stripping entry block 24 is located directly above the floating block 22 and drives the floating block 22 to float downward.

[0053] In this embodiment, the second discharge position 221 is arranged symmetrically on the left and right, and a second movable groove 201 is correspondingly arranged on the side of each discharge position 221; correspondingly, the second bending member 23 is also arranged in two, and each second bending member 23 extends inwardly into the corresponding second movable groove 201. It is possible to complete the bending process of two products at the same time, ensuring the efficiency of bending. The lower end surface of the second stripping block 24 is inwardly concave with a second make-way groove 202 corresponding to the second movable groove 201, and the second make-way groove 202 is used to make way for the second bending head 231. The second bending head 231 is arranged near one side of the second discharge position 221. When bending, the second bending head 231 contacts and bends with the side wall of the round structure of the product to be bent near the second discharge position 221, so that the second bending head 231 directly acts on the part to be bent, avoiding the bending force acting on other parts of the round structure and causing deformation of the round structure, thereby ensuring the quality of bending. In this embodiment, the floating block 22 can float up and down under the action of the external spring.

[0054] The working principle of this embodiment is described in detail as follows:

[0055] When performing a 90° bend, the product to be bent is first placed on the first discharge position 111 in the first mold assembly 10, and the rounded structure to be bent is extended into the bending groove 101, and then the external first upper mold 33 moves downward, and drives the clamping plate entry block 14 to move downward. During the downward movement of the first upper mold 33, it will first touch the first stripping plate 32, and drive the first push plate 32 and the first stripping entry block 13 on the first stripping plate 32 to move downward until the first stripping entry block 13 is pressed against the upper surface of the product. At this time, the first positioning rod (not shown in the figure) passes downward through the product and extends into The first positioning hole 107 is used to position the product, and at the same time, the clamp block 14 will drive the second main body 123 to move horizontally, and drive the first main body 122 to move obliquely upward through the second main body 123, so that the first bending head 121 acts on the side of the rounding structure close to the connection with the product, and drives the rounding structure to bend upward at a first angle; then it is reset upward through the first upper mold 33, and 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, and then the bent semi-finished product is taken out.

[0056] Then, the finished product after bending by the first mold assembly 10 is placed in the second discharge position 221 in the second mold assembly 20, and the rounded structure is located directly above the second movable groove 201. Then, the external second upper mold drives the external second stripping plate 42 to move downward, and drives the second stripping entry block 24 to move downward. When the second stripping entry block 24 contacts the floating block 22, it presses the product and continues to drive the floating block 22 to move downward, so that the second bending head 231 on the second bending part 23 moves upward relative to the floating block 22, and completes the bending process of the rounded structure. Then, the external second upper mold is reset upward, and then the bent product can be taken out.

[0057] The design focus of the present invention is: by providing 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; and cooperating with the first movable groove to extend 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; a second movable groove extending up and down is penetrated through the floating block, and the upper end of the second bending piece extends inwardly into the second movable groove, so that the bending at the first angle is first completed by the oblique first bending piece, and then the overall 90° bending process is completed by the setting of the second bending piece, avoiding the bent part on the mold to directly act vertically on the side wall of the round structure, not only can the 90° bending process be completed, making it less limited in use, but also damage to the round structure can be avoided, thereby ensuring the bending quality of the product.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A round terminal bending and forming die structure, 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 fixed block, a first bending piece, a first stripping entry block and a clamping plate entry 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 discharge position, the upper end surface of the first fixed block is inwardly concavely provided with a bending groove, the bending groove is located beside the first discharge position, the first fixed block is provided with a first movable groove connected to the bending groove, 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 first The upper end of the bending part is convexly provided with a first bending head that matches the product, and the first bending head moves back and forth in the bending groove; the first stripping entry block is arranged on the external first stripping plate and moves back and forth with the external first stripping plate, the first stripping entry block corresponds to the first discharge position, and the lower end surface of the first stripping entry block is concavely provided with a clearance groove that matches the first bending groove; the clamping plate entry block is arranged in the external first upper die and moves back and forth with the first upper die, the clamping plate entry block extends downwardly from the external first stripping entry plate and causes the first bending part to move obliquely upward; The second mold assembly includes a second fixed block, a floating block, a second bending piece and a second stripping entry block; the second fixed block is arranged on the external second lower mold; the floating block can be arranged on the external second lower mold in a floating manner up and down and is located directly above the second fixed block, a second discharge position is arranged on the floating block, a second movable groove extending up and down is penetrated through the floating block, and the upper end opening of the second movable groove is located beside the second discharge 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, and a second bending head extends upward from the upper end of the second bending piece, and the second bending head extends into the side of the second discharge position with the movement of the floating block; the second stripping entry block is arranged on the external second stripping plate and moves back and forth with the external second stripping plate, the second stripping entry block is located directly above the floating block and drives the floating block to float downward, and the lower end surface of the second stripping entry block is inwardly concave with a second give way groove corresponding to the second movable groove up and down.

2. The round terminal bending and forming die structure according to claim 1, characterized in that: The first bending head extends upward from a side of the first bending member close to the first material discharge position; when bending, the first bending head contacts the inner side wall of the circular structure of the part to be bent of the product and bends the product.

3. The round terminal bending and forming die structure according to claim 1, characterized in that: There are two first material discharge positions arranged symmetrically on the left and right, and the two first material discharge 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 entry block are also two arranged symmetrically on the left and right.

4. The round terminal bending and forming die structure according to claim 1, characterized in that: The first bending part includes a first main body portion arranged obliquely and a second main body portion arranged transversely, the first bending head is located at the upper end of the first main body portion, the lower end of the first main body portion is provided with a first guide surface extending obliquely, and a second guide surface matching 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, and a fourth guide surface matching the third guide surface is provided at the lower end of the clamping plate block.

5. The round terminal bending and forming die structure according to claim 4, characterized in that: A first spring for urging the first main body to return to its original position is sandwiched between the first main body and the first external lower mold, and a second spring for urging the second main body to return to its original position is sandwiched between the second main body and the first external lower mold.

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

7. The round terminal bending and forming die structure according to claim 1, characterized in that: There are two second material discharge positions arranged symmetrically on the left and right, and a second movable groove is correspondingly arranged on the side of each material discharge position; correspondingly, there are also two second bending members, and each second bending member extends inwardly into the corresponding second movable groove.

8. The round terminal bending and forming die structure according to claim 1, characterized in that: The second bending head is arranged near one side of the second material discharge 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 material discharge position.

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