Stamping device for low-voltage electrical lead terminal

Abstract

The utility model discloses a low-voltage electrical lead terminal stamping device, which belongs to the technical field of electrical accessory production, and comprises an upper die holder and a lower die holder, a cylinder is arranged between the upper die holder and the lower die holder, the upper die holder and the lower die holder are respectively provided with a punch group and a female die, the female die is provided with two guide holes, and the guide holes are communicated with the upper die holder and the lower die holder. A vertical hole set is arranged between the two guide holes, a containing cavity is formed in the female die, a plurality of material ejecting springs are installed at the bottom of the containing cavity, material ejecting assemblies are placed at the upper ends of the material ejecting springs, vertical rods are placed in the two guide holes, the lower ends of the vertical rods are connected with the material ejecting assemblies, and material blocking plates are installed at the upper ends of the vertical rods. A plurality of striker plates are fixed on the upper die base, profiling through holes are formed in the striker plates, a plurality of pressing and abutting springs are fixed on the upper die base, the pressing and abutting springs can be in contact with the striker plates, and the auxiliary demoulding device can play a role in assisting demoulding.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical accessories production, in particular to a low-voltage electrical wire terminal stamping device. Background Art

[0002] Wire terminals are accessories used to achieve electrical connections and belong to the category of connectors. With the development of new energy vehicles and other electronic industries, the use of wire terminals has gradually increased, and the scope and types of wire terminals have also increased.

[0003] The production of wire terminals requires the use of stamping dies. During stamping, existing stamping dies are prone to the situation where the formed parts are stuck in the die and difficult to remove, or are tightly attached to the punch and rise with the punch and cannot fall off on their own, which hinders the subsequent stamping process and affects the processing cycle.

[0004] In view of the problems existing in the above-mentioned prior art, the present invention designs and manufactures a low-voltage electrical wire terminal stamping device to overcome the above-mentioned defects. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a low-voltage electrical wire terminal stamping device, which can assist in demoulding.

[0006] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a low-voltage electrical wire terminal stamping device, comprising an upper die base and a lower die base, at least two cylinders are installed between the upper die base and the lower die base, and a punch group and a die are respectively installed on the upper die base and the lower die base;

[0007] The die is provided with two guide holes, a vertical hole group cooperating with the punch group is provided between the two guide holes, and a placement cavity communicating with the vertical hole group and the guide holes is provided on the die, and the placement cavity is located below the vertical hole group;

[0008] A plurality of ejecting springs are installed at the bottom of the storage cavity, and an ejecting assembly is placed on the upper end of the ejecting spring. The ejecting assembly can pass through the vertical hole group to lift the wire terminal placed on the die;

[0009] A vertical rod is placed inside the two guide holes, the lower end of the vertical rod is connected to the ejection assembly, a baffle plate is installed on the upper end of the vertical rod, the wire terminal is placed under the baffle plate, and the baffle plate is provided with a contoured through hole for the punch group to pass through. A number of pressure springs are fixed on the upper die base, and the pressure springs can contact the baffle plate.

[0010] Preferably, the punch group includes a plurality of punches arranged equidistantly along the length direction of the upper die base, and the vertical hole group includes a plurality of vertical holes corresponding one-to-one to the punches.

[0011] Preferably, the baffle plate is made of ferromagnetic material, and a magnet is embedded on the outer side wall of the punch to assist in resetting the baffle plate.

[0012] Preferably, a positioning groove is provided at the upper end of the die, the baffle plate is a profiling plate of the positioning groove, the positioning groove is located below the baffle plate, and the wire terminal is placed between the positioning groove and the baffle plate.

[0013] Preferably, the ejecting assembly includes a horizontal plate placed on the ejecting spring, and the horizontal plate is equipped with ejecting rods corresponding to the vertical holes one by one. When the horizontal plate is against the storage cavity, the ejecting rods extend from the upper ends of the vertical holes.

[0014] Preferably, a top plate is installed on the upper end of the ejector rod, and the diameter of the top plate is the same as the diameter of the vertical hole.

[0015] Preferably, the top plate is made of wear-resistant flexible material.

[0016] Preferably, the punch is detachably mounted on the upper die base.

[0017] Preferably, the ejector rod is detachably mounted on the transverse plate.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The utility model connects the ejector assembly and the baffle plate together and limits each other. The punch pushes the ejector assembly and the baffle plate downward to compress the ejector spring. After the stamping is completed, the ejector spring lifts the ejector assembly to separate the wire terminal from the die. Since the limiting baffle plate of the ejector assembly can only move upward a certain distance, the wire terminal on the punch cannot move upward due to the obstruction of the baffle plate and is thus separated from the punch, which plays a role in assisting demoulding.

[0020] 2. The utility model installs a pressure spring on the upper die seat. The pressure spring gradually contacts the baffle plate during the downward movement of the punch, and pushes the baffle plate to move downward to press the wire terminals placed on the die, thereby preventing the wire terminals from being displaced during stamping and improving production quality.

[0021] 3. The utility model provides a positioning groove on the upper end surface of the die, which is convenient for placing the wire terminal and positioning the wire terminal, which is simple to operate and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a partial cross-sectional view of a low-voltage electrical wire terminal stamping device according to the present invention;

[0023] Figure 2 The utility model is a schematic diagram of the working state of a low-voltage electrical wire terminal stamping device.

[0024] In the figure: 1-upper die base, 2-punch, 3-pressure spring, 4-cylinder, 5-die, 6-ejection rod, 7-lower die base, 8-ejection plate, 9-ejection spring, 10-storage cavity, 11-vertical rod, 12-guide hole, 13-positioning groove, 14-blocking plate, 15-vertical hole, 16-horizontal plate, 17-profiled through hole. DETAILED DESCRIPTION

[0025] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-2 The illustrated device for stamping low-voltage electrical wire terminals includes an upper die base 1 and a lower die base 7. At least two cylinders 4 are mounted between the upper and lower die bases 1 and 7, and the extension and retraction of the cylinders 4 control the elevation and retraction of the upper die base 1. A punch assembly and a die 5 are mounted on the upper and lower die bases 1 and 7, respectively.

[0027] The utility model has two guide holes 12 on the die 5, and a vertical hole group cooperating with the punch group is provided between the two guide holes 12. The punch group includes a plurality of punches 2 arranged equidistantly along the length direction of the upper die base 1. The punches 2 are detachably mounted on the upper die base 1, and damaged punches 2 can be disassembled and repaired separately. The vertical hole group includes a plurality of vertical holes 15 corresponding one to one with the punches 2.

[0028] The utility model is provided with a storage cavity 10 on the die 5, which is connected to the vertical hole 15 and the guide hole 12. The storage cavity 10 is located below the vertical hole group. A plurality of ejecting springs 9 are installed at the bottom of the storage cavity 10. A ejecting assembly is placed on the upper end of the ejecting spring 9. The ejecting assembly includes a horizontal plate 16, and the horizontal plate 16 is placed on the ejecting spring 9.

[0029] Specifically, the horizontal plate 16 is mounted with ejector pins 6 corresponding one-to-one with the vertical holes 15. The ejector pins 6 are detachably mounted on the horizontal plate 16 for easy replacement or installation. When the horizontal plate 16 abuts against the storage cavity 10, the ejector pins 6 extend from the upper ends of the vertical holes 15, lifting the wire terminals placed on the die 5 to prevent the wire terminals from becoming stuck in the die 5.

[0030] A top plate 8 is installed at the upper end of the ejection rod 6 of the present invention. The diameter of the top plate 8 is the same as the diameter of the vertical hole 15. The top plate 8 is made of wear-resistant flexible material, which increases the contact area with the wire terminal and reduces the pressure, thereby preventing the ejection rod 6 from damaging the surface of the wire terminal during ejection and affecting the production quality.

[0031] The utility model is provided with a vertical rod 11 placed inside the two guide holes 12. The lower end of the vertical rod 11 is connected to the ejector assembly. The upper end of the vertical rod 11 is provided with a baffle plate 14. The baffle plate 14 is provided with a profiled through hole 17 for the punch group to pass through. The wire terminal is placed below the baffle plate 14.

[0032] Specifically, a number of pressure springs 3 are fixed on the upper die base 1, and the pressure springs 3 can contact the material baffle plate 14. The cylinder 4 is shortened to drive the pressure springs 3 and the punch 2 on the upper die base 1 to move downward together. During the downward movement, the pressure springs 3 gradually contact the material baffle plate 14. As the distance between the upper die base 1 and the lower die base 7 gradually shortens, the pressure springs 3 will gradually push the material baffle plate 14 downward, pressing the wire terminals placed on the die 5 to prevent the wire terminals from being displaced during stamping, thereby improving production quality.

[0033] Specifically, after the stamping is completed, the cylinder 4 extends, driving the punch 2 and the pressure spring 3 on the upper die base 1 to move upward. The pressure of the pressure spring 3 on the material retaining plate 14 gradually decreases until the two are completely separated. As the pressure applied to the material retaining plate 14 gradually decreases, the material retaining spring 9 below the ejection assembly also gradually recovers. The extended ejection spring 9 pushes the ejection assembly upward until the cross plate 16 abuts against the upper inner wall of the storage cavity 10. When the cross plate 16 abuts against the inner wall of the storage cavity 10, the ejection plate 8 is pushed out of the vertical hole 15 by the ejection rod 6, lifting the wire terminal placed on the die 5, thereby assisting in demolding.

[0034] Specifically, when the wire terminal is tightly fastened to the punch 2 and cannot fall off, the wire terminal moves up with the punch 2. After moving up a certain distance, the wire terminal contacts the baffle plate 14. The baffle plate 14 cannot move up due to the limitation of the storage cavity 10, so it plays a role in blocking the wire terminal and separating it from the punch 2, effectively avoiding the problem that the subsequent stamping process is obstructed and the processing cycle is affected due to the wire terminal being unable to fall off by itself.

[0035] The material retaining plate 14 of this utility model is made of ferromagnetic material. A magnet is mounted on the punch assembly to assist in resetting the material retaining plate 14. The magnet is embedded in the outer wall of the punch 2. As the punch 2 moves upward, the magnet attracts the material retaining plate 14, pulling it upward with it. Furthermore, the wire terminals attached to the punch 2 also exert an upward pull on the material retaining plate 14, which, together with the ejection spring 9, generates an upward force to reset the material retaining plate 14.

[0036] Specifically, a positioning groove 13 is provided at the upper end of the die 5, and the baffle plate 14 is a profiling plate of the positioning groove 13. The positioning groove 13 is located below the baffle plate 14, and the wire terminal is placed between the positioning groove 13 and the baffle plate 14, which is convenient for placing the wire terminal and positioning the wire terminal, simple to operate, and improves production efficiency.

[0037] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A low-voltage electrical wire terminal stamping device, characterized in that: It comprises an upper die base (1) and a lower die base (7), at least two cylinders are installed between the upper die base (1) and the lower die base (7), and a punch group and a die (5) are installed on the upper die base (1) and the lower die base (7), respectively; The die (5) is provided with two guide holes (12), a vertical hole group cooperating with the punch group is provided between the two guide holes (12), and a storage cavity (10) communicating with the vertical hole group and the guide holes (12) is provided on the die (5), and the storage cavity (10) is located below the vertical hole group; A plurality of ejecting springs (9) are installed at the bottom of the storage cavity (10), and an ejecting assembly is placed on the upper end of the ejecting spring (9). The ejecting assembly can pass through the vertical hole group to eject the wire terminal placed on the die (5); A vertical rod (11) is placed inside each of the two guide holes (12), the lower end of the vertical rod (11) is connected to the ejection assembly, a baffle plate (14) is installed on the upper end of the vertical rod (11), the wire terminal is placed below the baffle plate (14), and the baffle plate (14) is provided with a contoured through hole (17) for the punch group to pass through, and a plurality of pressure springs (3) are fixed on the upper die base (1), and the pressure springs (3) can contact the baffle plate (14).

2. A low-voltage electrical wire terminal stamping device according to claim 1, characterized in that: The punch group includes a plurality of punches (2) arranged at equal distances along the length direction of the upper die base (1), and the vertical hole group includes a plurality of vertical holes (15) corresponding one-to-one to the punches (2).

3. A low-voltage electrical wire terminal stamping device according to claim 2, characterized in that: The baffle plate (14) is made of ferromagnetic material, and a magnet for assisting the baffle plate (14) in resetting is embedded on the outer side wall of the punch (2).

4. A low-voltage electrical wire terminal stamping device according to claim 1, characterized in that: The upper end of the die (5) is provided with a positioning groove (13), the baffle plate (14) is a profiling plate of the positioning groove (13), the positioning groove (13) is located below the baffle plate (14), and the wire terminal is placed between the positioning groove (13) and the baffle plate (14).

5. A low-voltage electrical wire terminal stamping device according to claim 2, characterized in that: The ejecting assembly includes a transverse plate (16), which is placed on the ejecting spring (9). The transverse plate (16) is provided with ejecting rods (6) corresponding to the vertical holes (15) one by one. When the transverse plate (16) is pressed against the storage cavity (10), the ejecting rods (6) extend from the upper ends of the vertical holes (15).

6. A low-voltage electrical wire terminal stamping device according to claim 5, characterized in that: A top plate (8) is installed on the upper end of the ejector rod (6), and the diameter of the top plate (8) is the same as the diameter of the vertical hole (15).

7. A low-voltage electrical wire terminal stamping device according to claim 6, characterized in that: The top plate (8) is made of wear-resistant flexible material.

8. A low-voltage electrical wire terminal stamping device according to claim 2, characterized in that: The punch (2) is detachably mounted on the upper die base (1).

9. A low-voltage electrical wire terminal stamping device according to claim 5, characterized in that: The ejector rod (6) is detachably mounted on the transverse plate (16).

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