Stamping die for connector housing production and production process thereof

Abstract

The present invention provides a stamping die and a production process thereof for producing a connector shell, comprising a workbench and a stamping die, wherein the workbench is provided with a first empty slot and a second empty slot, and the stamping die comprises a first stamping part and a second stamping part, wherein the first stamping part is symmetrically arranged on the top surface of the workbench and can move up and down in the first empty slot, and the second stamping part is symmetrically arranged on the top surface of the workbench and can move back and forth in the second empty slot, a die-casting cavity is formed between the first stamping part and the second stamping part, a storage plate is provided in the die-casting cavity, and the first stamping part is slidably connected to the first slide groove provided on the connecting frame. The present invention facilitates the release of the fixation on the edge of the connector shell at the end of the stamping of the connector shell, thereby facilitating the operator to pick up the connector shell placed on the storage plate, while avoiding plastic deformation of the edge of the connector shell.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, in particular to a stamping die for producing a connector housing and a production process thereof. Background Art

[0002] A connector generally refers to an electrical connector, a device that connects two active components, transmitting current or signals. The male and female ends of a connector can transfer information or current through contact. Connector housings are typically produced using stamping dies, which create the shape of the housing.

[0003] There are many studies in the prior art on stamping dies for connector shell production. For example, a stamping device for processing high-speed 5G communication connector shells is disclosed with application publication number CN217334642U. The stamping device is provided with hydraulic telescopic rods on both sides of the lower pressure plate and on the lower end face of the fixed plate, and holding blocks are provided at the lower ends of the two hydraulic telescopic rods. The two hydraulic telescopic rods contract during stamping and extend after the stamping is completed. During stamping, the two hydraulic telescopic rods can effectively prevent the shell from being stuck on the lower end face of the lower pressure plate. When the shell is stuck inside the die-casting groove on the stamping die after stamping, the second electric telescopic device is controlled by the control panel to cooperate with the ejector block to eject the shell from the stamping die.

[0004] However, there are still the following deficiencies. As can be seen from the above statements, when the connector shell is molded, the edge of the shell is clamped inside the die-casting groove on the stamping die. When the molding is completed, the center of the shell is forced by the ejector block to obtain the connector shell. When the ejector block exerts force on the center of the shell, the center and edge of the connector are unevenly stressed, which can easily cause plastic deformation of the edge of the connector shell at the moment of ejection. The plastic deformation becomes an irreversible process, thereby affecting the later assembly of the connector shell. Summary of the Invention

[0005] The object of the present invention is to provide a stamping die and a production process thereof for producing a connector housing, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stamping die for producing a connector housing comprises a workbench and a stamping die, wherein the workbench is provided with a first empty slot and a second empty slot, and the stamping die comprises a first stamping part and a second stamping part, wherein the first stamping part is symmetrically arranged on the top surface of the workbench and can move up and down in the first empty slot, and the second stamping part is symmetrically arranged on the top surface of the workbench and can move back and forth in the second empty slot, a die-casting cavity is formed between the first stamping part and the second stamping part, a storage plate is provided in the die-casting cavity, the first stamping part is slidably connected to the first slide groove provided on the connecting frame, a fixed block is fixedly connected to one side of the first stamping part, and the fixed block is away from the first stamping part One end of the pressing piece is fixedly connected to a transmission rack, and a hole is opened on the side of the connecting frame away from the first stamping piece, and the side of the transmission rack away from the fixed block passes through the hole and is meshed with the transmission gear, and the rotating shaft of the transmission gear is fixedly connected to the driving motor that drives it to rotate. The two second stamping pieces are fixedly connected to the first electric push rod, and the first electric push rod is fixedly connected to the top surface of the workbench, and the top surface of the workbench is fixedly connected to an L-shaped plate, and the top surface of the L-shaped plate is fixedly installed with a second electric push rod, and a pressing plate is provided at the center of the bottom surface of the L-shaped plate, and the positions of the pressing plate and the storage plate are correspondingly set, and the second electric push rod passes through the L-shaped plate and is fixedly connected to the pressing plate.

[0008] Preferably, both ends of the two first stamping parts are provided with grooves, and one side of the two second stamping parts is provided with a protrusion, and the grooves and the protrusions are snap-fitted and connected.

[0009] Preferably, a second sliding groove is provided on the top of each of the first stamping parts and the second stamping parts, a T-shaped rod is slidably connected in the second sliding groove, and the T-shaped rod is fixedly connected to the top of the first telescopic rod and the second telescopic rod.

[0010] Preferably, a support block is provided at the bottom of the storage board, and the end of the support block away from the storage board is fixedly connected to the top of the workbench. The left and right sides of the storage board are provided with first holes for the first telescopic rod to be inserted into, and the front and rear sides are provided with second holes for the second telescopic rod to be inserted into.

[0011] Preferably, a controller is provided on the side wall of the workbench, and the controller is electrically connected to the drive motor, the first electric push rod and the second electric push rod.

[0012] Preferably, the size of the pressing plate is slightly smaller than the size of the storage plate.

[0013] To achieve the above object, the present invention further provides the following technical solutions:

[0014] A production process for a stamping die for producing a connector housing based on any one of the above items comprises the following steps:

[0015] Step 1: Start the rotation of the drive motor, and use the meshing of the transmission rack and the transmission gear to move the left and right first stamping parts upward in the first slot until the first telescopic rod and the first hole slot in the storage plate are fully engaged;

[0016] Step 2: Use the extension of the first electric push rod to drive the second stamping parts on the front and rear sides to move toward each other until the groove on the first stamping part and the protrusion on the second stamping part are fully engaged, and the second telescopic rod is fully inserted into the second hole groove in the storage plate, effectively fixing the storage plate;

[0017] Step 3: Place the connector housing in the center of the storage plate, use the second electric push rod to drive the pressing plate to move downward, and the pressing plate and the die-casting cavity between the first stamping part and the second stamping part cooperate to complete the stamping of the connector housing;

[0018] Step 4: After the connector housing is stamped, slide the T-bar in the opposite direction to remove the first telescopic rod and the second telescopic rod from the first hole slot and the second hole slot, respectively, thereby releasing the connection between the first stamped part, the second stamped part, and the storage plate;

[0019] Step 5: Drive the motor in reverse to rotate and move the left and right first stamping parts downward in the first empty slot until the first telescopic rod and the first hole slot are completely separated. Use the contraction of the first electric push rod to drive the upper and lower second stamping parts to move in opposite directions until the second telescopic rod and the second hole slot are completely separated. The movement of the two second stamping parts simultaneously separates the groove and the protrusion, making it easier to pick up the connector housing placed on the storage plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention drives the transmission gear to rotate by a driving motor, and the transmission rack is meshed with the transmission gear. When the transmission gear rotates, the transmission rack can be driven to move up and down. Since the transmission rack is fixedly connected to the fixed block, and the fixed block is fixedly connected to the first stamping part, the up and down movement of the transmission rack can drive the first stamping part to move up and down. Through the fixed connection between the first electric push rod and the second stamping part, the extension and contraction of the first electric push rod can drive the second stamping part to move forward and backward. Through the upward movement of the two first stamping parts and the relative movement of the two second stamping parts, a die-casting cavity is formed, and the object plate and the object plate placed on the die-casting cavity are pressed. The connector housing on the storage plate is effectively fixed, and the second electric push rod is used to drive the pressure plate to move downward to punch the connector housing. At the end of punching, the reverse rotation of the drive motor drives the transmission rack to move the first punching part downward, and the shortening of the first electric push rod drives the second punching part to move backward, thereby releasing the fixation on the edge of the connector housing, thereby freeing up space for hand operation, and making it easier for the operator to pick up the connector housing placed on the storage plate. At the same time, it avoids the disadvantage of applying force to the center of the housing by the top block in the prior art to obtain the connector housing, resulting in plastic deformation of the edge of the connector housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional structural diagram of the storage plate of the present invention placed in the die-casting cavity;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the first stamping part and the second stamping part of the present invention before they are moved into place;

[0024] Figure 3 This is a schematic structural diagram of the first telescopic rod and the second telescopic rod of the present invention;

[0025] Figure 4 It is a front plan view of the overall structure of the present invention;

[0026] Figure 5 A top plan view of the overall structure of the present invention;

[0027] Figure 6 Schematic diagram of the structure of the first hole groove and the second hole groove of the present invention.

[0028] In the figure: 1 workbench, 2 first empty slot 2, 3 second empty slot, 4 first stamping part, 5 second stamping part, 6 die-casting cavity, 7 storage plate, 8 connecting frame, 9 first slide, 10 fixed block, 11 transmission rack, 12 transmission gear, 13 drive motor, 14 first electric push rod, 15-L-shaped plate, 16 second electric push rod, 17 pressure plate, 18 groove, 19 protrusion, 20 second slide, 21-T-shaped rod, 22 first telescopic rod, 23 second telescopic rod, 24 support block, 25 first hole slot, 26 second hole slot, 27 controller. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example:

[0031] See also Figures 1 to 6 , the present invention provides a technical solution:

[0032] A stamping die for connector housing production, such as Figure 2 and Figure 3 As shown, it includes a workbench 1 and a stamping die, the workbench 1 is provided with a first empty slot 2 and a second empty slot 3, the stamping die includes a first stamping part 4 and a second stamping part 5, the first stamping part 4 is symmetrically arranged on the top surface of the workbench 1 and can move up and down in the first empty slot 2, the second stamping part 5 is symmetrically arranged on the top surface of the workbench 1 and can move back and forth in the second empty slot 3, the tops of the two first stamping parts 4 and the second stamping parts 5 are both provided with a second slide groove 20, a T-shaped rod 21 is slidably connected in the second slide groove 20, the T-shaped rod 21 is fixedly connected to the tops of the first telescopic rod 22 and the second telescopic rod 23, and a die-casting cavity 6 is formed between the first stamping part 4 and the second stamping part 5; Figure 1 and Figure 3 As shown, a placement plate 7 is provided in the die-casting cavity 6. The placement plate 7 is equal in length and width to the connector housing. A support block 24 is provided at the bottom of the placement plate 7. The end of the support block 24 away from the placement plate 7 is fixedly connected to the top of the workbench 1. Figure 6 As shown, the left and right sides of the storage plate 7 are provided with first holes 25 for the first telescopic rod 22 to be inserted into, and the front and rear sides are provided with second holes 26 for the second telescopic rod 23 to be inserted into; Figure 2 As shown, grooves 18 are provided at both ends of the two first stamping parts 4, and protrusions 19 are provided on one side of the two second stamping parts 5, and the grooves 18 and the protrusions 19 are snap-fitted and connected.

[0033] like Figure 5As shown, the first stamping part 4 is slidably connected to the first slide groove 9 provided on the connecting frame 8, a fixed block 10 is fixedly connected to one side of the first stamping part 4, and a transmission rack 11 is fixedly connected to the end of the fixed block 10 away from the first stamping part 4. A hole is provided on the side of the connecting frame 8 away from the first stamping part 4, and the side of the transmission rack 11 away from the fixed block 10 passes through the hole and is meshed with the transmission gear 12. The side of the transmission rack 11 away from the fixed block 10 is meshed with the transmission gear 12, and the rotating shaft of the transmission gear 12 is fixedly connected to the driving motor 13 that drives it to rotate; as shown Figure 1 As shown, the two second stamping parts 5 are fixedly connected to the first electric push rod 14, the first electric push rod 14 is fixedly connected to the top surface of the workbench 1, the top surface of the workbench 1 is fixedly connected with an L-shaped plate 15, the top surface of the L-shaped plate 15 is fixedly installed with a second electric push rod 16, a pressure plate 17 is provided at the center of the bottom surface of the L-shaped plate 15, the positions of the pressure plate 17 and the storage plate 7 are correspondingly set, the second electric push rod 16 passes through the L-shaped plate 15 and is fixedly connected with the pressure plate 17, and the size of the pressure plate 17 is set to be slightly smaller than the size of the storage plate 7, so that the pressure block 17 can punch the connector shell.

[0034] In this embodiment, the groove 18 provided on the first stamping part 4 and the protrusion 19 on the second stamping part 5 are fully engaged, the first telescopic rod 22 and the first hole groove 25 provided in the storage plate 7 are fully inserted, and the second telescopic rod 23 and the second hole groove 26 provided in the storage plate 7 are fully inserted, so that a die-casting cavity 6 is formed between the first stamping part 4 and the second stamping part 5. The connector housing placed on the storage plate 7 just abuts against the inner wall of the die-casting cavity 6, which can effectively fix the connector housing and prevent the connector housing from shaking when the pressure block 17 stamps the connector housing, thereby ensuring the one-time stamping of the connector housing.

[0035] In this embodiment, the transmission gear 12 is driven to rotate by the driving motor 13, and the transmission rack 11 is meshed with the transmission gear 12. When the transmission gear 12 rotates, the transmission rack 11 can be driven to move up and down. Since the transmission rack 11 is fixedly connected to the fixed block 10, and the fixed block 10 is fixedly connected to the first stamping part 4, the up and down movement of the transmission rack 11 can drive the first stamping part 4 to move up and down. The first electric push rod 14 is fixedly connected to the second stamping part 5, and the extension and contraction of the first electric push rod 14 can drive the second stamping part 5 to move forward and backward. Move upward, the two second stamping parts 5 move toward each other to form a die-casting cavity 6, which effectively fixes the storage plate 7 and the connector shell placed on the storage plate 7. The second electric push rod 16 drives the pressure plate 17 to move downward to stamp the connector shell. After the stamping is completed, the drive motor 13 rotates in the opposite direction to drive the transmission rack 11 to drive the first stamping part 4 to move downward. The second stamping part 5 is driven backward by the shortening of the first electric push rod 14, thereby releasing the fixation on the edge of the connector shell, freeing up space for the hand to operate, and then making it easier for the operator to pick up the connector shell placed on the storage plate 7.

[0036] In this embodiment, a controller 27 is provided on the side wall of the workbench 1, and the controller 27 is electrically connected to the drive motor 13, the first electric push rod 14 and the second electric push rod 16. The drive motor 13 adopts the MR-JE-70A motor produced by Beijing Guojian Hongda Electric Co., Ltd., and the first electric push rod 14 and the second electric push rod 16 both adopt the ANT-52 electric push rod produced by Shanghai Shuntuo Motor Co., Ltd. The controller 27 can be an operation panel with a built-in PLC processor. The controller 27 can control the start and stop of the drive motor 13, the first electric push rod 14 and the second electric push rod 16 respectively.

[0037] A production process for a stamping die for producing a connector housing based on any one of the above methods comprises the following steps:

[0038] Step 1: Place the connector housing on the storage plate 7, manually drive the T-shaped rod 21, and extend the first telescopic rod 22 into place;

[0039] Step 2: Using the controller 27 to start the rotation of the drive motor 13, the transmission rack 11 and the transmission gear 12 mesh with each other, and when the transmission gear 12 rotates, the transmission rack 11 is driven to move upward. The movement of the transmission rack 11 drives the left and right first stamping members 4 to move upward in the first slot 2 until the first telescopic rod 22 is fully engaged with the first slot 25 defined in the storage plate 7.

[0040] Step 3: Use the extension of the first electric push rod 14 to drive the second stamping parts 5 on the front and rear sides to move toward each other until the groove 18 on the first stamping part 4 and the protrusion 19 on the second stamping part 5 are fully engaged, and the second telescopic rod 23 is fully inserted into the second hole 26 on the storage plate 7, effectively fixing the storage plate 7 and the connector housing;

[0041] Step 4: Use the second electric push rod 16 to drive the pressing plate 17 to move downward, and the pressing plate 17 cooperates with the die-casting cavity 6 between the first stamping part 4 and the second stamping part 5 to complete the stamping of the connector housing;

[0042] Step 5: After the connector housing is stamped, slide the T-shaped rod 21 in the opposite direction to remove the first telescopic rod 22 and the second telescopic rod 23 from the first hole groove 25 and the second hole groove 26 respectively, thereby releasing the connection between the first stamping part 4, the second stamping part 5 and the storage plate 7;

[0043] Step 6: Use the shortening of the first electric push rod 14 to drive the second stamping parts 5 on the front and rear sides to move in opposite directions until the second telescopic rod 23 and the second hole groove 26 are completely separated. At the same time, the movement of the two second stamping parts 5 separates the groove 18 and the protrusion 19;

[0044] Step 7: The reverse drive motor 13 rotates to drive the transmission rack 11 and the first stamping parts 4 on the left and right sides to move downward in the first slot 2, thereby releasing the fixation on the edge of the connector housing to facilitate the operator to pick up the connector housing placed on the storage plate 7.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die for connector housing production, characterized in that: The invention comprises a workbench and a stamping die, wherein the workbench is provided with a first empty slot and a second empty slot, and the stamping die comprises a first stamping part and a second stamping part, wherein the first stamping part is symmetrically arranged on the top surface of the workbench and can move up and down in the first empty slot, and the second stamping part is symmetrically arranged on the top surface of the workbench and can move forward and backward in the second empty slot, a die-casting cavity is formed between the first stamping part and the second stamping part, a storage plate is provided in the die-casting cavity, the first stamping part is slidably connected to the first slide groove provided on the connecting frame, a fixed block is fixedly connected to one side of the first stamping part, and the fixed block is fixedly connected to one end away from the first stamping part There is a transmission rack, a hole is opened on the side of the connecting frame away from the first stamping part, the side of the transmission rack away from the fixed block passes through the hole and is meshed with the transmission gear, the rotating shaft of the transmission gear is fixedly connected to the driving motor that drives it to rotate, the two second stamping parts are fixedly connected to the first electric push rod, the first electric push rod is fixedly connected to the top surface of the workbench, the top surface of the workbench is fixedly connected with an L-shaped plate, the top surface of the L-shaped plate is fixedly installed with the second electric push rod, the center of the bottom surface of the L-shaped plate is provided with a pressing plate, the positions of the pressing plate and the storage plate are correspondingly arranged, and the second electric push rod passes through the L-shaped plate and is fixedly connected to the pressing plate; A second chute is formed on the top of each of the two first stamping parts and the two second stamping parts. A T-shaped rod is slidably connected in the second chute. The T-shaped rod is fixedly connected to the top of the first telescopic rod and the second telescopic rod. The T-shaped rod is manually driven to extend the first telescopic rod and the second telescopic rod into place. A support block is provided at the bottom of the storage board, and one end of the support block away from the storage board is fixedly connected to the top of the workbench. The left and right sides of the storage board are provided with first holes for inserting the first telescopic rod, and the front and rear sides are provided with second holes for inserting the second telescopic rod. Both ends of the two first stamping parts are provided with grooves, and one side of the two second stamping parts is provided with a protrusion, and the grooves and the protrusions are snap-fitted and connected.

2. A stamping die for connector housing production according to claim 1, characterized in that: A controller is provided on the side wall of the workbench, and the controller is electrically connected to the drive motor, the first electric push rod, and the second electric push rod.

3. The stamping die for connector housing production according to claim 1, characterized in that: The size of the pressing plate is slightly smaller than that of the storage plate.

4. A production process for a stamping die for producing a connector housing according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: Start the rotation of the drive motor, and use the meshing of the transmission rack and the transmission gear to move the left and right first stamping parts upward in the first slot until the first telescopic rod and the first hole slot in the storage plate are fully engaged; Step 2: Use the extension of the first electric push rod to drive the second stamping parts on the front and rear sides to move toward each other until the groove on the first stamping part and the protrusion on the second stamping part are fully engaged, and the second telescopic rod is fully inserted into the second hole groove in the storage plate, effectively fixing the storage plate; Step 3: Place the connector housing in the center of the storage plate, use the second electric push rod to drive the pressing plate to move downward, and the pressing plate and the die-casting cavity between the first stamping part and the second stamping part cooperate to complete the stamping of the connector housing; Step 4: After the connector housing is stamped, slide the T-shaped rod in the opposite direction to remove the first telescopic rod and the second telescopic rod from the first hole slot and the second hole slot respectively, thereby releasing the connection between the first stamped part and the second stamped part and the storage plate; Step 5: Drive the motor in reverse to rotate and move the left and right first stamping parts downward in the first empty slot until the first telescopic rod and the first hole slot are completely separated. Use the contraction of the first electric push rod to drive the upper and lower second stamping parts to move in opposite directions until the second telescopic rod and the second hole slot are completely separated. The movement of the two second stamping parts simultaneously separates the groove and the protrusion, making it easier to pick up the connector housing placed on the storage plate.

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