Inner support closing-up jig structure for split groove terminal

Abstract

The utility model discloses an internal support closing-up jig structure for a split groove terminal. The internal support closing-up jig structure comprises a lower die and an upper die, the lower die comprises a base and a retaining mechanism, the upper surface of the base is concavely provided with an insertion hole and a containing groove, the insertion hole is used for the slot splitting terminal to be inserted, the containing groove is located on one side of the insertion hole, and the retaining mechanism can be laterally arranged in the containing groove in a back-and-forth moving mode and moves back and forth to be close to or far away from the insertion hole. The split groove terminal is fixed in the insertion hole by using the retaining mechanism, the fixed pin is inserted into the split groove terminal for internal support, and the split groove terminal is molded and closed up by using the closing-up forming block, so that burrs and sharp corners existing inside and outside the split groove terminal can be removed, the forming quality of the split groove terminal is improved, and the yield of the split groove terminal is improved. Meanwhile, the elastic force of the front end of the split groove terminal can be enhanced, the clamping effect on the contact pin is better, and the jig is simple in structure and easy to operate and brings great convenience to production operation.

Description

Technical Field

[0001] The utility model relates to the field of jig technology, in particular to an inner support and closing jig structure for split slot terminals. Background Art

[0002] A high-current connector is a power connector that has been widely used in various power transmission systems, such as power distribution systems or power supply systems, as a power connection interface. In a power supply system, the waterproof, anti-loosening and anti-vibration functions of the power connector are very important, especially for a moving power supply system. At present, automotive high-current connectors are required to have a compact structure, small size, easy operation, vibration resistance, safe and reliable electrical connection, and 360° shielding. High-current connectors have the ability to withstand high voltage and high current to ensure their long-term safe operation and avoid fire accidents caused by discharge.

[0003] The terminals used in the current high-current connectors are all split-slot terminals. During production, such split-slot terminals are positioned using a jig, and then slotted using a turning process with a saw blade. However, in the prior art, such split-slot terminals lack a closing process after the slotting operation is completed, resulting in burrs and sharp corners inside and outside the split-slot terminals. This defect will cause wear on the pins, causing the surface state of the pins to drop sharply, and the contact function to decline or even be lost. In addition, the elastic force of the front end of the split-slot terminal without a closing process is relatively weak, which affects the clamping effect on the pins. Therefore, it is necessary to study a solution to the above problems. Utility Model Content

[0004] In view of this, the present invention aims to overcome the deficiencies in the prior art, and its main purpose is to provide an internal support and closing fixture structure for a split slot terminal, which can perform internal support and closing on the split slot terminal to improve the molding quality of the split slot terminal.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The invention discloses an inner support and closing fixture structure for a split slot terminal, comprising a lower die and an upper die; the lower die comprises a base and a backstop mechanism, the upper surface of the base is concavely provided with an insertion hole and a receiving groove for inserting the split slot terminal, the receiving groove is located on one side of the insertion hole, the backstop mechanism can be laterally movably arranged in the receiving groove, and the backstop mechanism can move back and forth to approach or move away from the insertion hole; the upper die can be movably arranged up and down just above the lower die, the upper die comprises a closing forming block and a fixing pin, the fixing pin can be elastically telescopically arranged up and down inside the lower end of the closing forming block, the fixing pin extends downward from the lower end surface of the closing forming block and is aligned with the split slot terminal up and down.

[0007] As a preferred solution, a guide hole is provided on the outer side of the base, and the backstop mechanism includes a backstop block, a pull rod and a first spring. The backstop block can be laterally arranged back and forth in the accommodating groove, one end of the pull rod is fixedly connected to the backstop block, and the other end of the pull rod extends out of the base through the guide hole. The first spring is sleeved outside the pull rod and prompts the backstop block to move close to the insertion hole. The structure is simple and easy to assemble and operate.

[0008] As a preferred solution, the outer end of the pull rod has a pull ring to facilitate pulling the pull rod.

[0009] As a preferred solution, a receiving hole is recessed upward at the center of the lower end surface of the closing forming block, the fixing needle is located in the receiving hole, and a second spring is arranged in the receiving hole, which urges the fixing needle to extend downward from the lower end surface of the closing forming block, and the structure is simple.

[0010] As a preferred solution, a through groove is formed on the outer side surface of the lower end of the closing forming block, and the through groove is connected to the accommodating hole.

[0011] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0012] The split slot terminal is fixed in the insertion hole by using a back-stop mechanism, and a fixing pin is inserted into the split slot terminal for internal support, and the split slot terminal is shaped and closed by a closing forming block, so that the burrs and sharp corners inside and outside the split slot terminal can be removed, and the forming quality of the split slot terminal can be improved. At the same time, the elastic force of the front end of the split slot terminal can also be enhanced, and the clamping effect of the pin is better. The fixture has a simple structure and is easy to operate, which brings great convenience to production operations.

[0013] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of a first use state of a preferred embodiment of the utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the second use state of the preferred embodiment of the utility model;

[0016] Figure 3 It is a three-dimensional schematic diagram of a third use state of a preferred embodiment of the utility model.

[0017] Description of the accompanying drawings:

[0018] 10. Lower mold 11. Base

[0019] 12. Stop mechanism 121. Stop block

[0020] 122, pull rod 123, first spring

[0021] 124, pull ring 101, insertion hole

[0022] 102, receiving groove 103, guide hole

[0023] 20. Upper mold 21. Closing forming block

[0024] 22. Fixed needle 23. Second spring

[0025] 201. Through slot 30. Split slot terminal. DETAILED DESCRIPTION

[0026] Please refer to Figures 1 to 3 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a lower mold 10 and an upper mold 20.

[0027] The lower mold 10 includes a base 11 and a stopper mechanism 12. The upper surface of the base 11 is concavely provided with an insertion hole 101 for inserting the split slot terminal 30 and a receiving groove 102. The receiving groove 102 is located on one side of the insertion hole 101. The stopper mechanism 12 can be laterally movable back and forth in the receiving groove 102. The stopper mechanism 12 moves back and forth to approach or move away from the insertion hole 101. In this embodiment, the base 11 is a rectangular parallelepiped structure. The outer side surface of the base 11 is provided with a guide hole 103, and the guide hole 103 is connected to the receiving groove 102. The stop mechanism 12 includes a stop block 121, a pull rod 122 and a first spring 123. The stop block 121 can be laterally arranged back and forth in the accommodating groove 102. One end of the pull rod 122 is fixedly connected to the stop block 121. The other end of the pull rod 122 passes through the guide hole 103 and extends out of the base 11. The first spring 123 is sleeved outside the pull rod 122 and prompts the stop block 121 to move close to the insertion hole 101. The structure is simple and easy to assemble and operate. In addition, the outer end of the pull rod 122 has a pull ring 124 to pull the pull rod 122.

[0028] The upper mold 20 can be movably arranged up and down just above the lower mold 10. The upper mold 20 includes a closing molding block 21 and a fixing pin 22. The fixing pin 22 can be elastically extended up and down and is movably arranged inside the lower end of the closing molding block 21. The fixing pin 22 extends downward from the lower end surface of the closing molding block 21 and is aligned with the split slot terminal 30 up and down. In this embodiment, the center of the lower end surface of the closing molding block 21 is concavely provided with an accommodating hole (not shown in the figure), the fixing pin 22 is located in the accommodating hole, and a second spring 23 is arranged in the accommodating hole, the second spring 23 prompts the fixing pin 22 to extend downward from the lower end surface of the closing molding block 21, and the structure is simple. In addition, a through groove 201 is provided on the outer side surface of the lower end of the closing molding block 21, and the through groove 201 is connected to the accommodating hole.

[0029] The working principle of this embodiment is described in detail as follows:

[0030] During operation, first, the pull ring 124 is pulled outward, so that the pull rod 122 pulls the stop block 121 away from the insertion hole 101, and the first spring 123 is in a compressed state. Then, the lower end of the split slot terminal 30 is inserted into the insertion hole 101. Then, the pull ring 124 is released, and the first spring 123 recovers its deformation to push the stop block 121 close to the insertion hole 101. At this time, the split slot terminal 30 is limited in the insertion hole 101 by the stop block 121 and cannot be pulled out upward. Then, the upper mold 20 is driven downward by the external driving mechanism. After the movement is in place, the fixing pin 22 The upper end of the split slot terminal 30 is inserted into the interior for internal support, and the closing forming block 21 is fitted onto the outer portion of the upper end of the split slot terminal 30 to shape and close the split slot terminal 30. After the shaping and closing is completed, the upper mold 20 is driven by an external driving mechanism to move upward and reset. Then, the pull ring 124 is pulled outward so that the pull rod 122 pulls the stop block 121 away from the insertion hole 101. The first spring 123 is in a compressed state. At this time, the split slot terminal 30 can be pulled out of the insertion hole 101 upward, and then another split slot terminal 30 can be inserted and shaped and closed according to the above operations.

[0031] The design focus of the utility model is: by using the anti-retraction mechanism to fix the split slot terminal in the insertion hole, and using the fixing pin to insert the split slot terminal for internal support, and using the closing forming block to shape and close the split slot terminal, the burrs and sharp corners inside and outside the split slot terminal can be removed, and the forming quality of the split slot terminal can be improved. At the same time, the elastic force of the front end of the split slot terminal can also be enhanced, and the clamping effect of the pin is better. The fixture has a simple structure and is easy to operate, which brings great convenience to production operations.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An inner support and closing fixture structure for a split slot terminal, characterized in that: It comprises a lower mould and an upper mould; the lower mould comprises a base and a backstop mechanism, the upper surface of the base is concavely provided with an insertion hole and a receiving groove for inserting the split slot terminal, the receiving groove is located on one side of the insertion hole, the backstop mechanism can be laterally moved back and forth in the receiving groove, the backstop mechanism can move back and forth to approach or move away from the insertion hole; the upper mould can be moved up and down directly above the lower mould, the upper mould comprises a closing forming block and a fixing pin, the fixing pin can be elastically extended up and down and is movably arranged inside the lower end of the closing forming block, the fixing pin extends downward from the lower end surface of the closing forming block and is aligned with the split slot terminal up and down.

2. The inner support and closing fixture structure for the split slot terminal according to claim 1, characterized in that: A guide hole is provided on the outer side surface of the base, and the backstop mechanism includes a backstop block, a pull rod and a first spring. The backstop block can be set laterally back and forth in the accommodating groove, one end of the pull rod is fixedly connected to the backstop block, and the other end of the pull rod passes through the guide hole and extends outward from the base. The first spring is sleeved outside the pull rod and prompts the backstop block to move close to the insertion hole.

3. The inner support and closing fixture structure for the split slot terminal according to claim 2, characterized in that: The outer end of the pull rod is provided with a pull ring.

4. The inner support and closing fixture structure for the split slot terminal according to claim 1, characterized in that: The center of the lower end surface of the closing forming block is concavely provided with an accommodating hole, the fixing needle is located in the accommodating hole, and a second spring is arranged in the accommodating hole, the second spring urges the fixing needle to extend downward from the lower end surface of the closing forming block.

5. The inner support and closing fixture structure for the split slot terminal according to claim 4, characterized in that: A through groove is formed on the outer side surface of the lower end of the closing forming block, and the through groove is connected to the accommodating hole.

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