Connector shell bending die

Abstract

The utility model relates to the technical field of connectors, and discloses a connector shell bending die which comprises a bottom plate, a top plate and a metal plate, a supporting frame is fixedly connected to the middle of the upper surface of the bottom plate, a lower die is arranged at the upper end of the interior of the supporting frame, and the outer wall of the lower die is tightly attached to the inner wall of the supporting frame. A limiting frame is fixedly connected to the middle of one side of the upper surface of the lower mold, a metal plate is slidably connected to the inner wall of the limiting frame, a bending groove is formed in the middle of the other side of the upper surface of the lower mold, and a sliding plate is arranged in the middle of the upper end in the bending groove. According to the metal plate bending machine, the precise position and the size precision of a metal plate in the bending process are ensured through a precise positioning system and a flexible reset mechanism, the die is designed to comprise the sliding plate and the telescopic rod, and the sliding plate and the telescopic rod are matched with the reset spring, so that bending operation is more flexible, the bent metal plate can be automatically ejected out, manual operation steps are reduced, and production efficiency is improved. And the labor intensity and the product damage risk are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a bending die for a connector housing. Background Technique

[0002] A bending die for a connector housing is a special tool used to bend metal materials into specific shapes. It is mainly used to produce housing components of various electronic connectors. The die usually consists of an upper die, a lower die, a ejector rod, etc. Through the action of a stamping machine, the metal sheet is precisely bent into the shape and size required by the design, ensuring the structural stability of the connector and the reliability of electrical connection. The characteristics of this die are high precision, high efficiency and good durability, and it can maintain a stable bending effect in continuous production. It is an essential key equipment in the electronic manufacturing industry.

[0003] Traditional dies usually require transferring the metal sheet from one die to another for cutting and bending, which increases the operation steps and time consumption and reduces the production efficiency. In addition, traditional die designs usually ignore the impact of vibration on the die, so there is no sufficient shock absorption function in the structure. Due to the lack of effective shock absorption measures, the die is affected by vibration during the bending process, thus affecting the stability and durability of the die.

[0004] Therefore, those skilled in the art provide a bending die for a connector housing to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the content of the utility model is to solve the disadvantages existing in the prior art, and a bending die for a connector housing is proposed. Through a precise positioning system and a flexible reset mechanism, the precise position and dimensional accuracy of the metal sheet during the bending process are ensured. The design of the die includes a sliding plate and a telescopic rod, which cooperate with a reset spring to make the bending operation more flexible and can automatically eject the bent metal sheet, reducing the manual operation steps, lowering the labor intensity and the risk of product damage. At the same time, the lower part of the die is designed with a telescopic rod and a connecting block, providing stable support for the die. Cooperating with a sliding ring and a reset spring, it absorbs and disperses the impact force during the bending process, reduces the damage of vibration to the die, and extends the service life of the die. These design elements not only improve the stability and durability of the die, but also protect the die from damage caused by vibration through effective shock absorption measures, thereby extending the service life of the die, reducing the maintenance cost, and ensuring the stability of product quality.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connector housing bending die, comprising a bottom plate, a top plate and a metal plate. In the middle of the upper surface of the bottom plate, a support frame is fixedly connected. At the upper end inside the support frame, a lower die is arranged. The outer wall of the lower die is closely attached to the inner wall of the support frame. In the middle of one side of the upper surface of the lower die, a limit frame is fixedly connected. A metal plate is slidably connected to the inner wall of the limit frame. In the middle of the other side of the upper surface of the lower die, a bending groove is opened. In the middle of the upper end inside the bending groove, a sliding plate is arranged. The front end and the rear end of the outer wall of the sliding plate are both slidably connected to the inner wall of the bending groove. At the front end and the rear end of the lower surface of the sliding plate, first telescopic rods are fixedly connected. The lower ends of the first telescopic rods are fixedly connected to the inner bottom surface of the bending groove. First return springs are sleeved on the outer walls of the first telescopic rods. In the middle of the upper surface of the lower die, a cutting groove is opened. At the middle of the lower end of the top plate, an upper die is arranged. At the center of the upper surface of the top plate, a hydraulic cylinder is fixedly connected. The output end of the hydraulic cylinder penetrates through the top plate to the lower end of the top plate and is fixedly connected to the center of the upper surface of the upper die. At the middle of the other side of the lower surface of the upper die, a bending plate is fixedly connected. At the middle of the lower surface of the upper die, a cutting knife is fixedly connected;

[0008] Through the above technical solution, by setting the first positioning hole and the second positioning hole, as well as the first positioning pin and the second positioning pin that cooperate with them, the precise position of the metal plate during the bending process is ensured, improving the dimensional accuracy of the product. The design of the sliding plate and the first telescopic rod, in cooperation with the first return spring, makes the bending operation more flexible. After the bending operation is completed, the first return spring will push the sliding plate and the first telescopic rod back to the initial position. This reset mechanism ensures that the die can quickly prepare for the next bending operation, improving the production efficiency. And when the bending operation is completed, the reset action of the first return spring not only makes the sliding plate return to its original position, but also can eject the bent metal plate from the die, facilitating the removal of the finished product and the placement of the next workpiece. This automatic ejection function reduces the manual operation steps, lowers the labor intensity, and at the same time reduces the risk of product damage caused by improper manual operation. The cooperation of the cutting groove and the cutting knife can directly perform bending after cutting. By realizing the continuous operation of cutting and bending on the same die, the production efficiency is significantly improved, the production cost is reduced, and the quality of the product is improved.

[0009] Furthermore, second telescopic rods are fixedly connected to the four corners of the lower surface of the lower mold. Connecting blocks are fixedly connected to the lower surfaces of the second telescopic rods. The lower surfaces of the connecting blocks are fixedly connected to the upper surface of the bottom plate. First sliding rings are sleeved on the upper ends of the second telescopic rods. The inner walls of the first sliding rings are fixedly connected to the outer walls of the upper ends of the second telescopic rods. Second return springs are sleeved on the upper ends of the second telescopic rods. First connecting rods are fixedly connected to the lower ends of the adjacent sides of the second telescopic rods. Second sliding rings are sleeved on both sides of the outer walls of the first connecting rods. Third return springs are sleeved on the middle parts of the outer walls of the first connecting rods. Second connecting rods are hingedly connected to the middle parts of the adjacent sides of the first sliding rings. The lower ends of the second connecting rods are hingedly connected to the middle parts of the upper ends of the second sliding rings;

[0010] Through the above technical solution, the design of the second telescopic rods and the connecting blocks provides stable support for the lower mold, ensuring the stability of the mold during the bending process. The cooperation of the first sliding rings and the second return springs can absorb and disperse the impact force generated by the stamping action during the bending process, playing a buffering role. This design can reduce the damage to the mold caused by vibration and extend the service life of the mold. The second return springs provide a certain elasticity when the mold resets, which helps to reduce the impact vibration after the bending is completed, protecting the mold and the equipment from excessive wear. The design of the first connecting rods, the second sliding rings and the third return springs enhances the overall structure of the mold, enabling the mold to better resist repeated impacts and vibrations during continuous operation, improving the durability of the mold. By reducing vibration, these designs help to maintain the accuracy of the mold, ensuring the consistency of the size and shape of the produced connector housing. These design elements not only improve the stability and durability of the mold, but also protect the mold from damage caused by vibration through effective shock absorption measures, thereby extending the service life of the mold, reducing the maintenance cost, and ensuring the stability of the product quality.

[0011] Furthermore, support rods are fixedly connected to the four corners of the upper surface of the bottom plate. The upper ends of the support rods are fixedly connected to the lower surface of the top plate;

[0012] Through the above technical solution, a stable frame structure is formed between the bottom plate and the top plate through the support rods, enhancing the rigidity of the entire mold and preventing the mold from being distorted or deformed during the bending process.

[0013] Furthermore, a PLC control panel is arranged in the middle of the front end of the outer wall of the support rod on the other side at the front end;

[0014] Through the above technical solution, the PLC control panel is used to control the operation of the mold.

[0015] Further, first positioning holes are provided at the four corners of the upper surface of the lower mold, first positioning pins are fixedly connected to the four corners of the lower surface of the upper mold, the outer walls of the first positioning pins are slidably connected to the inner walls of the first positioning holes, second positioning holes are provided at the four corners of the upper surface of the limiting frame, and four second positioning pins are fixedly connected to the middle of one side of the lower surface of the upper mold, and the outer walls of the second positioning pins are slidably connected to the inner walls of the second positioning holes;

[0016] Through the above technical solution, the design of these positioning pins and positioning holes provides a reliable and efficient positioning method for the connector housing bending mold, ensuring the quality and production efficiency of the product.

[0017] Further, the upper ends of the first return springs are fixedly connected to the lower surface of the sliding plate, and the lower ends of the first return springs are fixedly connected to the inner bottom surface of the bending groove;

[0018] Through the above technical solution, when the bending operation is completed, the first return spring will push the sliding plate back to the initial position to achieve automatic reset, preparing for the next bending operation. Through the buffering effect of the first return spring during the reset process, the impact between the mold components is reduced, protecting the mold structure from damage.

[0019] Further, the outer walls of the bending plates are slidably connected to the inner walls of the bending grooves, and the outer walls of the cutting knives are slidably connected to the inner walls of the cutting grooves;

[0020] Through the above technical solution, through the sliding connection design of the bending plates and the bending grooves and the cutting knives and the cutting grooves, not only the operation accuracy and efficiency of the connector housing bending mold are improved, but also the durability and adaptability of the mold are enhanced, providing a guarantee for producing high-quality products.

[0021] Further, the second return springs are all located at the lower ends of the first sliding rings, the upper ends of the second return springs are fixedly connected to the lower ends of the first sliding rings, the lower ends of the second return springs are fixedly connected to the upper surfaces of the middle parts of the second telescopic rods, one side of the outer walls of one side of the third return springs is fixedly connected to the other side of the outer wall of the second sliding ring, the other side of the outer walls of the other side of the third return springs is fixedly connected to one side of the outer wall of the second sliding ring, and the second telescopic rods are all located inside the support frame;

[0022] Through the above technical solution, through this layout of the return springs, an effective reset and buffering mechanism is provided for the connector housing bending mold, ensuring the stability and accuracy of the mold during continuous production.

[0023] The utility model has the following beneficial effects:

[0024] 1. A bending die for a connector housing proposed by the present utility model ensures the precise position of the metal plate during the bending process by setting the first positioning hole and the second positioning hole, as well as the first positioning pin and the second positioning pin that cooperate with them, improving the dimensional accuracy of the product. The design of the sliding plate and the first telescopic rod, in conjunction with the first return spring, makes the bending operation more flexible. After the bending operation is completed, the first return spring will push the sliding plate and the first telescopic rod back to the initial position. This reset mechanism ensures that the die can quickly prepare for the next bending operation, improving production efficiency. And when the bending operation is completed, the reset action of the first return spring not only returns the sliding plate to its original position but also ejects the bent metal plate from the die, facilitating the removal of the finished product and the placement of the next workpiece. This automatic ejection function reduces the manual operation steps, lowers the labor intensity, and also reduces the risk of product damage caused by improper manual operation. The cooperation of the cutting groove and the cutting knife enables bending to be directly carried out after cutting. By realizing the continuous operation of cutting and bending on the same die, the production efficiency is significantly improved, the production cost is reduced, and the product quality is enhanced.

[0025] 2. In a bending die for a connector housing proposed by the present utility model, the design of the second telescopic rod and the connecting block provides stable support for the lower die, ensuring the stability of the die during the bending process. The cooperation of the first sliding ring and the second return spring can absorb and disperse the impact force generated by the stamping action during the bending process, playing a buffering role. This design can reduce the damage to the die caused by vibration and extend the service life of the die. The second return spring provides a certain elasticity when the die resets, which helps to reduce the impact vibration after bending is completed, protecting the die and the equipment from excessive wear. The design of the first connecting rod, the second sliding ring, and the third return spring enhances the overall structure of the die, enabling the die to better resist repeated impacts and vibrations during continuous operation, improving the durability of the die. By reducing vibration, these designs help to maintain the accuracy of the die, ensuring the consistency of the size and shape of the produced connector housing. These design elements not only improve the stability and durability of the die but also protect the die from damage caused by vibration through effective shock absorption measures, thereby extending the service life of the die, reducing the maintenance cost, and ensuring the stability of the product quality. Brief Description of the Drawings

[0026] Figure 1 An isometric view of a bending die for a connector housing proposed by the present utility model;

[0027] Figure 2 An isometric view of a partial structure of a bending die for a connector housing proposed by the present utility model;

[0028] Figure 3An isometric view of a partial structure of a bending die for a connector housing proposed by the present utility model;

[0029] Figure 4 An exploded view of a partial structure of a bending die for a connector housing proposed by the present utility model;

[0030] Figure 5 An isometric schematic diagram of a partial structure of a bending die for a connector housing proposed by the present utility model.

[0031] Legend:

[0032] 1. Bottom plate; 101. Support rod; 102. PLC control panel; 103. Top plate; 104. Support frame; 105. Hydraulic cylinder;

[0033] 2. Lower die; 201. First positioning hole; 202. Bending groove; 203. Slide plate; 204. First telescopic rod; 205. First return spring; 206. Cutting groove; 207. Limit frame; 208. Second positioning hole; 209. Metal plate;

[0034] 3. Upper die; 301. First positioning pin; 302. Bending plate; 303. Cutting knife; 304. Second positioning pin;

[0035] 4. Connecting block; 401. Second telescopic rod; 402. First sliding ring; 403. Second return spring; 404. First connecting rod; 405. Second sliding ring; 406. Third return spring; 407. Second connecting rod. Detailed implementation manners

[0036] Next, the technical solutions in the specific implementation manners of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the specific implementation manners of the present utility model. Obviously, the described specific implementation manners are only a part of the specific implementation manners of the present utility model, rather than all of the specific implementation manners. Based on the specific implementation manners of the present utility model, all other specific implementation manners obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0037] Refer to Figure 2 、 Figure 3 and Figure 4, a specific embodiment provided by the present utility model: a bending die for a connector housing, including a bottom plate 1, a top plate 103 and a metal plate 209. A support frame 104 is fixedly connected to the middle of the upper surface of the bottom plate 1. A lower die 2 is arranged at the upper end inside the support frame 104. The outer wall of the lower die 2 is closely attached to the inner wall of the support frame 104. A limit frame 207 is fixedly connected to the middle of one side of the upper surface of the lower die 2. A metal plate 209 is slidably connected to the inner wall of the limit frame 207. A bending groove 202 is opened in the middle of the other side of the upper surface of the lower die 2. A sliding plate 203 is arranged in the middle of the upper end inside the bending groove 202. The front end and the rear end of the outer wall of the sliding plate 203 are both slidably connected to the inner wall of the bending groove 202. The front end and the rear end of the lower surface of the sliding plate 203 are both fixedly connected with a first telescopic rod 204. The lower ends of the first telescopic rods 204 are both fixedly connected to the inner bottom surface of the bending groove 202. A first return spring 205 is sleeved on the outer wall of each first telescopic rod 204. A cutting groove 206 is opened in the middle of the upper surface of the lower die 2. An upper die 3 is arranged at the middle of the lower end of the top plate 103. A hydraulic cylinder 105 is fixedly connected to the center of the upper surface of the top plate 103. The output end of the hydraulic cylinder 105 penetrates through the top plate 103 to the lower end of the top plate 103 and is fixedly connected to the center of the upper surface of the upper die 3. A bending plate 302 is fixedly connected to the middle of the other side of the lower surface of the upper die 3. A cutting knife 303 is fixedly connected to the middle of the lower surface of the upper die 3. By providing a first positioning hole 201 and a second positioning hole 208, and the first positioning pin 301 and the second positioning pin 304 that cooperate with them, the precise position of the metal plate 209 during the bending process is ensured, and the dimensional accuracy of the product is improved. The design of the sliding plate 203 and the first telescopic rod 204, in cooperation with the first return spring 205, makes the bending operation more flexible. After the bending operation is completed, the first return spring 205 will push the sliding plate 203 and the first telescopic rod 204 back to the initial position. This reset mechanism ensures that the die can quickly prepare for the next bending operation, improving the production efficiency. And when the bending operation is completed, the reset action of the first return spring 205 not only makes the sliding plate 203 return to its original position, but also can eject the bent metal plate 209 from the die, facilitating the taking out of the finished product and the placing of the next workpiece. This automatic ejection function reduces the manual operation steps, reduces the labor intensity, and also reduces the risk of product damage caused by improper manual operation. The cooperation of the cutting groove 206 and the cutting knife 303 can directly perform bending after cutting. By realizing the continuous operation of cutting and bending on the same die, the production efficiency is significantly improved, the production cost is reduced, and the quality of the product is improved.

[0038] Refer to Figure 2 and Figure 5, at the four corners of the lower surface of the lower mold 2, second telescopic rods 401 are fixedly connected. The lower surfaces of the second telescopic rods 401 are fixedly connected with connecting blocks 4, and the lower surfaces of the connecting blocks 4 are fixedly connected with the upper surface of the bottom plate 1. First sliding rings 402 are sleeved on the upper ends of the second telescopic rods 401, and the inner walls of the first sliding rings 402 are fixedly connected with the outer walls of the upper ends of the second telescopic rods 401. Second return springs 403 are sleeved on the upper ends of the second telescopic rods 401. First connecting rods 404 are fixedly connected to the lower ends of the adjacent sides of the second telescopic rods 401. Second sliding rings 405 are sleeved on both sides of the outer walls of the first connecting rods 404. Third return springs 406 are sleeved on the middle parts of the outer walls of the first connecting rods 404. Second connecting rods 407 are hingedly connected to the middle parts of the adjacent sides of the first sliding rings 402. The lower ends of the second connecting rods 407 are hingedly connected to the middle parts of the upper ends of the second sliding rings 405. The design of the second telescopic rods 401 and the connecting blocks 4 provides stable support for the lower mold 2, ensuring the stability of the mold during the bending process. The cooperation of the first sliding rings 402 and the second return springs 403 can absorb and disperse the impact force generated by the stamping action during the bending process, playing a buffering role. This design can reduce the damage of vibration to the mold and extend the service life of the mold. The second return springs 403 provide a certain elasticity when the mold is reset, which helps to reduce the impact vibration after the bending is completed, protecting the mold and equipment from excessive wear. The design of the first connecting rods 404, the second sliding rings 405 and the third return springs 406 enhances the overall structure of the mold, enabling the mold to better resist repeated impacts and vibrations during continuous operation, improving the durability of the mold. By reducing vibration, these designs help to maintain the accuracy of the mold, ensuring the consistency of the size and shape of the produced connector housing. These design elements not only improve the stability and durability of the mold, but also protect the mold from damage caused by vibration through effective shock absorption measures, thereby extending the service life of the mold, reducing the maintenance cost, and ensuring the stability of the product quality.

[0039] Refer to Figure 1 , Figure 4 and Figure 5, support rods 101 are fixedly connected to the four corners of the upper surface of the bottom plate 1. The upper ends of the support rods 101 are fixedly connected to the lower surface of the top plate 103. A stable frame structure is formed between the bottom plate 1 and the top plate 103 through the support rods 101, enhancing the rigidity of the entire mold and preventing the mold from being distorted or deformed during the bending process. In the middle of the front end of the outer wall of the support rod 101 on the other side at the front end, a PLC control panel 102 is provided. The PLC control panel 102 is used to control the operation of the mold. First positioning holes 201 are opened at the four corners of the upper surface of the lower mold 2. First positioning pins 301 are fixedly connected to the four corners of the lower surface of the upper mold 3. The outer walls of the first positioning pins 301 are slidably connected to the inner walls of the first positioning holes 201. Second positioning holes 208 are opened at the four corners of the upper surface of the limit frame 207. Four second positioning pins 304 are fixedly connected to the middle of one side of the lower surface of the upper mold 3. The outer walls of the second positioning pins 304 are slidably connected to the inner walls of the second positioning holes 208. Through the design of these positioning pins and positioning holes, a reliable and efficient positioning method is provided for the connector housing bending mold, ensuring the quality and production efficiency of the product. The upper ends of the first return springs 205 are fixedly connected to the lower surface of the sliding plate 203. The lower ends of the first return springs 205 are fixedly connected to the inner bottom surface of the bending groove 202. When the bending operation is completed, the first return springs 205 will push the sliding plate 203 back to the initial position to achieve automatic reset, preparing for the next bending operation. Through the buffering effect of the first return springs 205 during the reset process, the impact between the mold components is reduced, and the mold structure is protected from damage. The outer walls of the bending plates 302 are slidably connected to the inner walls of the bending grooves 202. The outer walls of the cutting knives 303 are slidably connected to the inner walls of the cutting grooves 206. Through the sliding connection design of the bending plates 302 and the bending grooves 202 and the cutting knives 303 and the cutting grooves 206, not only the operation accuracy and efficiency of the connector housing bending mold are improved, but also the durability and adaptability of the mold are enhanced, providing a guarantee for producing high-quality products. The second return springs 403 are all located at the lower ends of the first sliding rings 402. The upper ends of the second return springs 403 are fixedly connected to the lower ends of the first sliding rings 402. The lower ends of the second return springs 403 are fixedly connected to the upper surface of the middle part of the second telescopic rods 401. On one side, one side of the outer wall of the third return spring 406 is fixedly connected to the other side of the outer wall of the second sliding ring 405. On the other side, the other side of the outer wall of the third return spring 406 is fixedly connected to one side of the outer wall of the second sliding ring 405. The second telescopic rods 401 are all located inside the support frame 104. Through this layout of the return springs, an effective reset and buffering mechanism is provided for the connector housing bending mold, ensuring the stability and accuracy of the mold during continuous production.

[0040] Working principle: The upper surface of the mold is provided with a first positioning hole 201 and a second positioning hole 208, which are matched with a first positioning pin 301 and a second positioning pin 304. These components work together to ensure the accuracy of the bending operation. The design of the mold also includes a sliding plate 203 and a first telescopic rod 204. Their cooperation with the first return spring 205 makes the bending operation more flexible. After the bending operation is completed, the first return spring 205 pushes the sliding plate 203 and the first telescopic rod 204 back to the initial position, preparing for the next bending operation. This reset mechanism not only improves production efficiency but also realizes the automatic ejection function, ejecting the bent metal plate 209 from the mold, facilitating the removal of the finished product and the placement of the next workpiece, reducing manual operation steps, lowering labor intensity, and reducing the risk of product damage caused by improper manual operation. In addition, the cooperation of the cutting groove 206 and the cutting knife 303 of the mold enables continuous cutting and bending operations on the same mold. This design significantly improves production efficiency, reduces production costs, and improves product quality. The lower part of the mold is designed by a second telescopic rod 401 and a connecting block 4, providing stable support for the lower mold 2 and ensuring the stability of the mold during the bending process. The cooperation of the first sliding ring 402 and the second return spring 403 can absorb and disperse the impact force generated by the stamping action during the bending process, playing a buffering role, reducing the damage of vibration to the mold, and extending the service life of the mold. The design of the first connecting rod 404, the second sliding ring 405, and the third return spring 406 enhances the overall structure of the mold, enabling the mold to better resist repeated impacts and vibrations during continuous operation and improving the durability of the mold. Through these designs, the bending mold for the connector housing not only realizes a high-efficiency and high-precision production process but also ensures the stability and durability of the mold, providing a strong guarantee for producing high-quality products.

[0041] Finally, it should be noted that the above are only the preferred specific embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bending die for a connector housing, comprising a bottom plate (1), a top plate (103) and a metal plate (209), characterized in that: In the middle of the upper surface of the bottom plate (1), a support frame (104) is fixedly connected. Inside the upper end of the support frame (104), a lower mold (2) is provided. The outer wall of the lower mold (2) is in close fit with the inner wall of the support frame (104). In the middle of one side of the upper surface of the lower mold (2), a limiting frame (207) is fixedly connected. A metal plate (209) is slidably connected to the inner wall of the limiting frame (207). In the middle of the other side of the upper surface of the lower mold (2), a bending groove (202) is formed. In the middle of the upper end inside the bending groove (202), a sliding plate (203) is provided. The front end and the rear end of the outer wall of the sliding plate (203) are both slidably connected to the inner wall of the bending groove (202). The front end and the rear end of the lower surface of the sliding plate (203) are both fixedly connected with a first telescopic rod (204). The lower ends of the first telescopic rods (204) are both fixedly connected to the inner bottom surface of the bending groove (202). A first return spring (205) is sleeved on the outer wall of each first telescopic rod (204). In the middle of the upper surface of the lower mold (2), a cutting groove (206) is formed. In the middle of the lower end of the top plate (103), an upper mold (3) is provided. At the center of the upper surface of the top plate (103), a hydraulic cylinder (105) is fixedly connected. The output end of the hydraulic cylinder (105) penetrates through the top plate (103) to the lower end of the top plate (103) and is fixedly connected to the center of the upper surface of the upper mold (3). In the middle of the other side of the lower surface of the upper mold (3), a bending plate (302) is fixedly connected. In the middle of the lower surface of the upper mold (3), a cutting knife (303) is fixedly connected.

2. The bending die for the connector housing according to claim 1, wherein: At the four corners of the lower surface of the lower mold (2), second telescopic rods (401) are fixedly connected. The lower surfaces of the second telescopic rods (401) are all fixedly connected with connecting blocks (4). The lower surfaces of the connecting blocks (4) are all fixedly connected to the upper surface of the bottom plate (1). A first sliding ring (402) is sleeved on the upper end of each second telescopic rod (401). The inner wall of the first sliding ring (402) is fixedly connected to the outer wall of the upper end of the second telescopic rod (401). A second return spring (403) is sleeved on the upper end of each second telescopic rod (401). At the lower ends of the adjacent sides of each second telescopic rod (401), a first connecting rod (404) is fixedly connected. Second sliding rings (405) are sleeved on both sides of the outer wall of the first connecting rod (404). A third return spring (406) is sleeved on the middle of the outer wall of the first connecting rod (404). At the middle of the adjacent side of each first sliding ring (402), a second connecting rod (407) is hingedly connected. The lower ends of the second connecting rods (407) are all hingedly connected to the middle of the upper end of the second sliding rings (405).

3. A bending die for a connector housing according to claim 1, wherein: At the four corners of the upper surface of the bottom plate (1), support rods (101) are fixedly connected. The upper ends of the support rods (101) are all fixedly connected to the lower surface of the top plate (103).

4. A bending die for a connector housing according to claim 3, characterized in that: In the middle of the front end of the outer wall of the support rod (101) on the other side, a PLC control panel (102) is provided.

5. A bending die for a connector housing according to claim 1, characterized in that: Four first positioning holes (201) are respectively formed at the four corners of the upper surface of the lower die (2). Four first positioning pins (301) are fixedly connected to the four corners of the lower surface of the upper die (3). The outer walls of the first positioning pins (301) are slidably connected to the inner walls of the first positioning holes (201). Four second positioning holes (208) are respectively formed at the four corners of the upper surface of the limiting frame (207). Four second positioning pins (304) are fixedly connected to the middle of one side of the lower surface of the upper die (3). The outer walls of the second positioning pins (304) are slidably connected to the inner walls of the second positioning holes (208).

6. A bending die for a connector housing according to claim 1, characterized in that: The upper ends of the first return springs (205) are fixedly connected to the lower surface of the sliding plate (203). The lower ends of the first return springs (205) are fixedly connected to the inner bottom surface of the bending groove (202).

7. A bending die for a connector housing according to claim 1, characterized in that: The outer walls of the bending plates (302) are slidably connected to the inner walls of the bending grooves (202). The outer walls of the cutting knives (303) are slidably connected to the inner walls of the cutting grooves (206).

8. A bending die for a connector housing according to claim 2, characterized in that: The second return springs (403) are respectively located at the lower ends of the first sliding rings (402). The upper ends of the second return springs (403) are fixedly connected to the lower ends of the first sliding rings (402). The lower ends of the second return springs (403) are fixedly connected to the upper surfaces of the middles of the second telescopic rods (401). One side of the outer walls of one side of the third return springs (406) is fixedly connected to the other side of the outer walls of the second sliding rings (405). The other side of the outer walls of the other side of the third return springs (406) is fixedly connected to one side of the outer walls of the second sliding rings (405). The second telescopic rods (401) are respectively located inside the support frames (104).

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