A cold-pressed terminal crimping device with positioning function

Abstract

The present invention discloses a cold-pressed terminal crimping device with a positioning function, belonging to the field of mold production technology. The bottom of the upper mold plate and the top of the lower mold plate are both provided with grooves, and the guide positioning pins penetrate the two opposite walls of the grooves. The sliding pressure plate is located in the grooves, and the sliding pressure plate is provided with guide positioning holes corresponding to the guide positioning pins. The sliding pressure plate can slide along the guide positioning pins. The fastening screw is threadedly connected to one wall of the groove, and the threaded end of the fastening screw penetrates the groove and abuts the sliding pressure plate. The upper and lower jaws are respectively located between the sliding pressure plate and the other wall of the corresponding template groove. The upper and lower jaws of the present invention are accurately aligned and can be easily and quickly replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of mold production, and in particular to a cold-pressed terminal crimping device with a positioning function. Background Art

[0002] Cold-pressed terminals are widely used in aerospace products for cable assembly and connection. Crimping cold-pressed terminals can replace soldering and is an important means of improving product reliability. With China vigorously promoting green manufacturing, cold-pressed terminal crimping methods should not be limited to traditional hand crimping. New technologies and equipment should be used during the processing process to improve the efficiency of cold-pressed terminal crimping.

[0003] The crimping process for cold-pressed terminals is primarily used for forming connections at cable splices. While there are many types of cold-pressed terminals, they all share a common characteristic: their base material is generally copper alloy, a material susceptible to plastic deformation. Therefore, molds can be used to rapidly process cold-pressed terminals and cables in batches. However, currently, crimping cold-pressed terminals and cables is typically done with hand pliers. Currently, hand pliers are more suitable for small batches of cold-pressed terminals, but not for large quantities. Furthermore, hand pliers are not durable and can become damaged due to wear on the connecting shaft, preventing the jaws from closing. Furthermore, the hand pliers need to be replaced when crimping different types of cold-pressed terminals, resulting in low efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a cold-pressed terminal crimping device with a positioning function. The upper and lower jaws of the device are accurately aligned and can be replaced easily and quickly.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A cold-pressed terminal crimping device with a positioning function comprises an upper die structure and a lower die structure, wherein the upper die structure comprises an upper die plate, a sliding pressure plate, a guide positioning pin and a fastening screw; the upper surface of the upper die plate is provided with a die handle for connecting to a hand press, and the bottom of the upper die plate is provided with an upper jaw; the lower die structure comprises a lower die plate and a lower jaw at the top of the lower die plate, wherein the upper jaw is located directly above the lower jaw and the two are directly opposite;

[0007] The bottom of the upper template and the top of the lower template are both provided with grooves, and the guide positioning pin passes through the two opposite walls of the groove; the sliding pressure plate is located in the groove, and the sliding pressure plate is provided with a guide positioning hole corresponding to the guide positioning pin; the sliding pressure plate can slide along the guide positioning pin; the fastening screw is threadedly connected to one of the walls of the groove, and the threaded end of the fastening screw passes through the groove and rests on the sliding pressure plate; the upper jaw and the lower jaw are respectively located between the sliding pressure plate of the corresponding template groove and the other wall of the groove.

[0008] Furthermore, the fastening screw is parallel to the guide positioning pin.

[0009] Furthermore, the guide positioning pins are cylindrical and there are at least two of them.

[0010] Furthermore, the upper jaw and the lower jaw are both configured to pass through the gaps corresponding to the guide positioning pins.

[0011] Furthermore, guide surfaces for secondary guiding are provided on both sides of the upper jaw and the lower jaw.

[0012] Furthermore, the tooth surfaces facing the upper jaw and the lower jaw are provided with pressing teeth of different widths for adapting to cold-pressed terminals of different models.

[0013] The beneficial effects of the above technical solution of the present invention are:

[0014] 1. The present invention can save more effort than hand pliers by adopting a force-applying device, namely a hand press.

[0015] 2. The present invention designs the upper jaw and the lower jaw to be slidingly matched, so that the upper jaw and the lower jaw have an automatic positioning function, ensuring that the upper jaw and the lower jaw are accurately aligned and reducing the accuracy requirements of the hand plate pressure equipment.

[0016] 3. The present invention is designed with a clamping mechanism, which makes it convenient and quick to replace the upper jaw and the lower jaw.

[0017] 4. The present invention increases the service life of the crimping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front structure of an embodiment of the present invention;

[0019] Figure 2 for Figure 1 Side half section view;

[0020] Figure 3 for Figure 1 Schematic diagram of the corresponding structure of the upper and lower jaws.

[0021] In the figure: 1. Upper template, 2. Sliding pressure plate, 3. Fastening screws, 4. Guide positioning pins, 5. Lower template, 6. T-bolts, 7. Upper jaw, 8. Lower jaw. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Reference Figures 1 to 3 This embodiment includes an upper mold plate 1, a sliding pressure plate 2, a fastening screw 3, a guide positioning pin 4, a lower mold plate 5, a T-bolt 6, an upper jaw 7, and a lower jaw 8. The upper mold plate has a mold handle at the top that connects to the hand press. The groove in the upper mold plate uses a fastening screw, a sliding pressure plate, and a guide pin to form a clamping mechanism, which allows for quick and convenient clamping of the upper jaw. The bottom of the lower mold plate is connected to a small hand press device via a T-bolt. The lower mold plate also uses a fastening screw, a sliding pressure plate, and a guide pin to form a clamping mechanism, which allows for quick and convenient clamping of the lower jaw. The upper and lower jaws are accurately positioned by guide surfaces to ensure their positioning.

[0025] The sliding guide plates of the upper and lower molds are provided with two guide holes, and the sliding guide plates can slide on the guide positioning pins. The sliding guide plate of the upper mold structure is flush with the bottom surface of the upper mold plate, and the sliding guide plate of the lower mold structure is flush with the top surface of the lower mold plate.

[0026] The guide positioning pin is interference fit with the upper template and clearance fit with the sliding guide plate; the upper template is fixedly connected to the pressure head of the hand press through the mold handle, and the lower template is fixedly connected to the base of the hand press through a T-bolt.

[0027] The head of the fastening screw is in the form of an external hexagon on all sides and has a slot in the middle, so that the upper jaw and the lower jaw can be easily replaced by using a wrench or a flat-blade screwdriver.

[0028] The upper jaw is divided into an upper and a lower part, wherein the upper part is fixed to the upper template; the lower part is a working part, the middle part of the bottom surface is a forming part, and the two side surfaces are guide surfaces.

[0029] The lower jaw is divided into two parts, the lower part of which is fixed to the lower template; the upper part is the working part, the middle part of its top surface is the forming part, and the raised inner side surfaces on both sides are guide surfaces. The upper and lower jaws are slidingly matched, and the starting ends of the guide surfaces have rounded transitions.

Claims

1. A cold-pressed terminal crimping device with a positioning function, comprising an upper die structure and a lower die structure, characterized in that: The upper mold structure includes an upper mold plate, a sliding pressure plate, a guide positioning pin and a fastening screw; the upper surface of the upper mold plate is provided with a mold handle for connecting to a hand press, and the bottom of the upper mold plate is provided with an upper jaw; the lower mold structure includes a lower mold plate and a lower jaw at the top of the lower mold plate, and the upper jaw is located directly above the lower jaw and the two are directly opposite; The bottom of the upper template and the top of the lower template are both provided with grooves, and the guide positioning pins pass through the two opposite walls of the grooves; the sliding pressure plate is located in the groove, and the sliding pressure plate is provided with guide positioning holes corresponding to the guide positioning pins; the sliding pressure plate can slide along the guide positioning pins; the fastening screw is threadedly connected to one wall of the groove, and the threaded end of the fastening screw passes through the groove and abuts against the sliding pressure plate; the upper jaw and the lower jaw are respectively located between the sliding pressure plate and the other wall of the corresponding template groove; The fastening screw is parallel to the guide positioning pin; The guide positioning pins are cylindrical and at least two are provided.

2. A cold-pressed terminal crimping device with a positioning function according to claim 1, characterized in that: The upper jaw and the lower jaw are both configured to pass through the gaps of the corresponding guide positioning pins.

3. The cold-pressed terminal crimping device with positioning function according to claim 1, characterized in that: Guide surfaces for secondary guiding are also provided on both sides of the upper jaw and the lower jaw.

4. The cold-pressed terminal crimping device with positioning function according to claim 1, characterized in that: The tooth surfaces facing the upper jaw and the lower jaw are provided with pressing teeth of different widths for adapting to cold-pressed terminals of different models.

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