Circular terminal folding and forming die structure

Abstract

The application discloses a kind of round terminal bending forming die structures, including for first angle bending of terminal first die assembly and for second angle bending of terminal second die assembly;By first movable slot oblique extension;The first bending piece is arranged in first movable slot and moves back and forth along the extension direction of first movable slot;Second movable slot extending up and down is penetrated in floating block, and the upper end of second bending piece extends into second movable slot, so that it is first through oblique first bending piece to complete the bending of first angle, and then complete the bending process of whole 90 DEG by the setting of second bending piece, avoid the part of bending on die directly vertically acting on the side wall of round structure, not only can complete the bending process of 90 DEG, make it less limited in use, but also can avoid damaging round structure, guarantee the bending quality of product.

Description

Technical Field

[0001] The present invention relates to the field of terminal bending technology, in particular to a bending and forming die structure for a circular terminal. Background Art

[0002] Connectors are also called connectors. Also known as joints and sockets in China, they generally refer to electrical connectors. These are devices that connect two active components, transmitting current or signals. The male and female terminals, when in contact, can transmit information or current, and are also called connectors. The basic performance of connectors can be categorized into three main categories: mechanical, electrical, and environmental. Another important mechanical performance characteristic is the mechanical life of the connector. Mechanical life is actually a measure of durability. During connector manufacturing, the terminals are crucial components that connect to the outside world.

[0003] After the terminal is formed, it needs to be partially bent. Existing terminals are bent using an external bending die. The existing die uses downward pressure from the upper die and a bending head to bend the terminal product in one step. When bending a rounded product 90°, the existing bending head acts vertically on the sidewall of the rounded structure, preventing a full 90° bend and significantly limiting its use. Therefore, it is necessary to develop a new technical solution to address this issue. Summary of the Invention

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

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

[0006] A round terminal bending and forming die structure includes 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 folding plate is fixed on the outer cover of the mold, and the folding plate is fixed on the outer cover of the mold, and the folding plate is fixed on the outer cover of the mold. The folding plate is fixed on the outer cover of the mold, and the folding plate is fixed on the outer cover of the mold.

[0008] The second mold assembly includes a second fixed block, a floating block, a second bending part 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 to float up and down and is located directly above the second fixed block, and a second discharge position is provided on the floating block, and a second movable groove extending up and down is passed through the floating block, and the upper end opening of the second movable groove is located on the side of the second discharge position; the lower end of the second bending part is fixedly installed on the second fixed block, the upper end of the second bending part extends inwardly into the second movable groove, and the upper end of the second bending part extends upward with a second bending head, and the second bending head extends into the side of the second discharge position as the floating block moves; 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 product to be bent 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 splint 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 horizontally, 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 the side of the second main body portion close to the first main body portion is provided with a second guide surface that cooperates with the first guide surface; the side of the second main body portion away from the first main body portion is provided with a third guide surface, and the lower end of the splint block is provided with a fourth guide surface that cooperates with the third guide surface.

[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. 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.

[0014] As a preferred solution, the lower end surface of the first stripping and 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 provided on the side of each discharge position; correspondingly, there are also two second bending parts, and each second bending part extends inwardly into the corresponding second movable groove.

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

[0017] As a preferred solution, the second bending head is arranged near the second discharge position. During bending, the second bending head contacts and bends the side wall of the circular structure in the product to be bent near 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] Through setting the first die assembly for first angle bending of the terminal and the second die assembly for second angle bending of the terminal, and matching the 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 penetrated through 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 through the oblique first bending piece, and the whole 90° bending process is completed through the setting of the second bending piece, the part of the mold bending vertically is avoided from directly acting on the side wall of the round structure, 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 clarify the structural features and effects of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the use state diagram of the first die assembly in the preferred embodiment of the present application;

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

[0023] Figure 3 is the cross-sectional diagram of the first die assembly in the preferred embodiment of the present application;

[0024] Figure 4 is the use state diagram of the second die assembly in the preferred embodiment of the present application;

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

[0026] Figure 6 is the exploded assembly diagram of the second die assembly in the preferred embodiment of the present application;

[0027] Figure 7 is the cross-sectional diagram of the second die assembly in the preferred embodiment of the present application.

[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, 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 movable 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 and block

[0043] 31. First lower die 32. First stripper

[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 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 includes a first main body portion 122 arranged obliquely and a second main body portion 123 arranged horizontally, the first bending head 121 is located at the upper end of the first main body portion 122, and the lower end of the first main body portion 122 is provided with a first guide surface 103 extending obliquely, and the second main body portion 123 is provided with a second guide surface 104 cooperating with the first guide surface 103 on the side close to the first main body portion 122; the second main body portion 123 is provided with a third guide surface 105 on the side away from the first main body portion 122, and the lower end of the splint entry block 14 is provided with a fourth guide surface 106 cooperating with the third guide surface 105. When bending, the splint entry block 14 drives the second main body portion 123 to move horizontally 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 is sandwiched between the first main body 122 and the first outer lower mold 31 for urging the first main body 122 to return to its original position. A second spring 125 is sandwiched between the second main body 123 and the first outer lower mold 31 for urging the second main body 123 to return to its original position.

[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 recessed groove 108 that matches the first bending groove 101. The first recessed 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 and entering block 24; the second fixed block 21 is set on the external second lower mold 41; the floating block 22 is set on the external second lower mold 41 and is located directly above the second fixed block 21, and a second discharge position 221 is set on the floating block 22, and a second movable groove 201 extending up and down is passed through the floating block 22, and the upper end opening of the second movable groove 201 is located next to the second discharge position 221; the second The lower end of the bending part 23 is fixedly mounted on the second fixed block 21, the upper end of the second bending part 23 extends inwardly into the second movable groove 201, and the upper end of the second bending part 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 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, there are two second discharge positions 221 arranged symmetrically on the left and right, and a second movable groove 201 is correspondingly provided on the side of each discharge position 221; correspondingly, there are also two second bending members 23, and each second bending member 23 extends inwardly into the corresponding second movable groove 201. This allows the bending process of two products to be completed simultaneously, ensuring the efficiency of bending. The lower end surface of the second stripping block 24 is inwardly concave with a second clearance groove 202 corresponding to the upper and lower second movable groove 201. The second clearance groove 202 is used to make way for the second bending head 231. The second bending head 231 is set close to one side of the second discharge position 221. During bending, the second bending head 231 contacts and bends the side wall of the circular 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 circular structure and causing deformation of the circular 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 round structure to be bent is extended into the bending groove 101. Then the external first upper mold 33 moves downward, and drives the clamping plate block 14 to move downward. During the downward movement of the first upper mold 33, it will first touch the first stripper plate 32, and drive the first push plate 32 and the first stripper block 13 on the first stripper plate 32 to move downward until the first stripper 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 inserted into the first positioning hole 107 to position the product, and at the same time, the splint 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 round structure close to the connection with the product, and drives the round 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 being bent by the first mold assembly 10 is placed in the second discharge position 221 in the second mold assembly 20, and the round 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 round structure. Then, the external second upper mold is reset upward, and 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 part 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 passed through the floating block, and the upper end of the second bending part extends inwardly into the second movable groove, so that the bending of the first angle is first completed by the oblique first bending part, and then the overall 90° bending process is completed by the setting of the second bending part, avoiding the bent part on the mold to directly act vertically on the side wall of the circular structure, not only can the 90° bending process be completed, making it less limited in use, but also damage to the circular structure can be avoided, thereby ensuring the bending quality of the product.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor 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 die structure, characterized by: 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 part, 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 concave with a bending groove, the bending groove is located next to 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 part 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 cooperates with 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 yield groove that cooperates with the first bending groove; the splint entry block is arranged in the external first upper die and moves back and forth with the first upper die, the splint entry block extends downwardly from the external first stripping entry plate and causes the first bending part to move obliquely upward; The cam is secured to the outside of the mold and has a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a second retaining mechanism, a 2. The round terminal bending mold 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 mold structure according to claim 1, characterized in that: There are two first discharge positions 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 splint entry block are also arranged symmetrically on the left and right.

4. The round terminal bending mold 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 horizontally, 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 the side of the second main body portion close to the first main body portion is provided with a second guide surface cooperating with the first guide surface; the side of the second main body portion away from the first main body portion is provided with a third guide surface, and the lower end of the splint block is provided with a fourth guide surface cooperating with the third guide surface.

5. The round terminal bending mold 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 mold 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 mold structure according to claim 1, characterized in that: There are two second discharge positions arranged symmetrically on the left and right, and a second movable groove is correspondingly provided on the side of each discharge position; correspondingly, two second bending parts are also provided, and each second bending part extends inwardly into the corresponding second movable groove.

8. The round terminal bending mold 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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