CN220066375U

CN220066375U - Polygonal terminal crimping device

Info

Publication number: CN220066375U
Application number: CN202321715041.XU
Authority: CN
Inventors: 赵玲
Original assignee: Guangdong Yingang Intelligent Technology Co ltd
Current assignee: Guangdong Yingang Intelligent Technology Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-21
Anticipated expiration: 2033-06-30

Abstract

The utility model belongs to the technical field of cable processing, and particularly relates to a polygonal terminal crimping device, which comprises a mounting seat and two groups of extrusion dies, wherein one side of the mounting seat is provided with a mounting groove, and at least one group of extrusion dies in the two extrusion dies is arranged in the mounting groove in a sliding manner; the extrusion die comprises a die holder, a connecting plate, a pushing piece, an extrusion head and a compression spring; one end of the die holder is provided with a semicircular hole, a plurality of groups of guide grooves are radially arranged around the semicircular hole, one end of each guide groove extends to form a sliding groove, and the sliding grooves are mutually parallel; an extrusion head is arranged in each guide groove, a pushing piece is arranged in each sliding groove in a sliding mode, one end of the pushing piece is attached to one end of the extrusion head, and the other end of the pushing piece is connected with the connecting plate; a limiting groove is also arranged in the guide groove, and a limiting pin extending into the limiting groove is arranged on the extrusion head; the compression spring is arranged between the die holder and the connecting plate. The connecting plate of the extrusion die is provided with a connecting part for connecting a power mechanism, so that the power mechanism can drive the extrusion die to slide in the mounting groove.

Description

Polygonal terminal crimping device

Technical Field

The utility model belongs to the technical field of cable end-crimping processing, and particularly relates to a polygonal terminal crimping device and a polygonal terminal crimping device.

Background

The cable is applied to the fields of power transmission, communication transmission and the like, and has a wide application range. At present, a large amount of cables are used in new energy automobiles as power transmission, communication transmission and the like. In order to facilitate the connection and installation of the cable, the connecting terminal is riveted at the end part of the cable. There are various ways of crimping a cable to a terminal, and there are methods of crimping a flat terminal or a semi-open terminal directly to the end of a cable core wire by a terminal crimping die. There is also a terminal having a sleeve structure, in which the terminal is fitted over the end of the core wire, the terminal is pressed into a hexagonal shape by a hexagonal die, and the terminal and the core wire are then riveted together. The wrapping type end riveting is adopted, and is generally applicable to the end of a small core wire. The large-current cable riveting terminal is generally formed by sleeving a tubular terminal on the end of a conductor, and crimping the tubular terminal on the conductor of the cable by adopting a polygonal terminal crimping mechanism, such as a square terminal, a hexagonal terminal or an eight-direction terminal crimping mechanism.

In a polygonal crimping mechanism of a tubular terminal disclosed in Chinese patent document with a publication number of CN212542931U, the polygonal crimping mechanism of the tubular terminal comprises a base, a plurality of polygonal crimping blocks, a force transmission connecting rod, a driven connecting rod, a polygonal crimping movable ring and a cover plate, wherein a crimping port with adjustable size is formed between the polygonal crimping blocks, one end of each polygonal crimping block is movably connected with the base, the other end of each polygonal crimping block is movably clamped in the polygonal crimping movable ring, the polygonal crimping movable ring is movably connected with the force transmission connecting rod, the force transmission connecting rod is movably connected with the driven connecting rod, the cover plate is fixed with the base, a cover plate opening is formed in the cover plate, and the position of the cover plate opening corresponds to the crimping port. The cylinder drives the two copper core guiding clamps and the two terminal righting plates to be closed, two 90-degree V-shaped clamping positions arranged on the two copper core guiding clamps are closed to form a four-side hole capable of being finely adjusted, two taper grooves arranged on the two copper core guiding clamps are closed to form a taper round hole, and the taper grooves are communicated with the 90-degree V-shaped clamping positions arranged at the lower ends of the taper grooves; two 90-degree V-shaped clamping positions arranged on the two terminal centralizing plates are also closed to form a finely adjustable quadrilateral hole; the terminal and the conductive wire sequentially extend into the press joint through the taper round hole, the four-sided hole and the product conduit through hole in the guide positioning cup; the cylinder drives the driven power connecting rod to linearly move back and forth, the driven power connecting rod drives the polygonal press-connection movable ring to do circumferential swing with unchanged circle center through the force transmission connecting rod, when the polygonal press-connection movable ring swings, four polygonal press-connection blocks are pushed to achieve size change of four-degree press-connection, and when the press-connection port is minimum, the press-connection port is used for fixing the terminal together with the copper core of the conductive wire and the terminal guide pipe after being extruded. Then, the cylinder drives the two copper core guiding clamps and the two terminal centralizing plates to open, and the terminal and the conducting wire finished product which are connected together can be taken out.

In the technical solution of the above patent document, the polygonal crimping block is pushed to rotate in the form of a lever by the rotating crimping ring, so that the polygonal crimping block crimps the terminal at the end of the cable. However, in the technical solution of the patent document, the extrusion is achieved by rotating the polygonal crimping block around the fulcrum by adopting the lever structure, so that a certain rotation space is required for the polygonal crimping block; in order to avoid the mutual interference of the adjacent polygonal pressing blocks, the fewer the number of the polygonal pressing blocks is, the more the interference can be avoided, so that the number of the polygonal pressing blocks cannot exceed four pieces, and therefore, the terminals can only be pressed into a quadrilateral. In addition, when the terminal is pressed and connected to the cable end by the polygonal pressing blocks in a rotating mode, the polygonal shapes formed by the polygonal pressing blocks are changed (according to the change of the rotating angles of the polygonal pressing blocks) in the rotating process, so that polygonal structures with different shapes are formed after different terminals are riveted in the riveting process, and the problem of inconsistent shapes of products produced in batches is caused.

Disclosure of Invention

The utility model aims to provide a polygonal terminal crimping device which solves the problem that the polygonal shape of a terminal after crimping is inconsistent after the terminal is crimped with a cable.

In order to achieve the above object, the embodiment of the utility model provides a polygonal terminal crimping device, which comprises a mounting seat and two groups of extrusion dies, wherein one side of the mounting seat is provided with a mounting groove, and at least one group of extrusion dies in the two extrusion dies is arranged in the mounting groove in a sliding way;

the extrusion die comprises a die holder, a connecting plate, a pushing piece, an extrusion head and a compression spring; one end of the die holder is provided with a semicircular hole, a plurality of groups of guide grooves are radially arranged around the semicircular hole, one end of each guide groove extends to form a sliding groove, and the sliding grooves are mutually parallel; an extrusion head is arranged in each guide groove, a pushing piece is arranged in each sliding groove in a sliding manner, one end of the pushing piece is attached to one end of the extrusion head, and the other end of the pushing piece extends out of the sliding groove to be connected with the connecting plate; a limiting groove is also arranged in the guide groove, and a limiting pin extending into the limiting groove is arranged on the extrusion head; the compression spring is arranged between the die holder and the connecting plate and is used for pushing the connecting plate, so that one end of the pushing piece is far away from the guide groove;

the connecting plate of the extrusion die is provided with a connecting part for connecting a power mechanism, so that the power mechanism can drive the extrusion die to slide in the mounting groove.

Further, the guide grooves in the die holder are four groups and are distributed at equal angles; the end part of the pushing piece is provided with an extrusion inclined plane which forms an acute angle with the chute; the end face of the extrusion head is attached to the extrusion inclined plane.

Further, an extrusion part extends from one end of the extrusion head, and a step is formed between the extrusion part and the end of the extrusion head.

Further, a slit is provided on one side of the mount, and the slit extends between the two extrusion dies.

Further, the tail end of the notch extends downwards to form an empty avoiding groove which is used for avoiding empty cables.

Further, the mounting seat is vertically arranged, so that the two extrusion dies are arranged up and down, and a connecting plate of the extrusion die positioned at the upper end is provided with a connecting part; the connecting plate of the extrusion die at the lower end is fixedly arranged, and the die holder of the extrusion die at the lower end can slide up and down relative to the connecting plate.

Further, the mounting seats are horizontally arranged, so that the two extrusion dies are horizontally distributed; the connecting plates of the two extrusion dies are provided with connecting parts and are independently connected with driving mechanisms.

The technical scheme of the polygonal terminal crimping device provided by the embodiment of the utility model has at least the following technical effects:

1. this polygon terminal crimping device is including two sets of crimping dies that independently set up constitutes to crimping die's die holder is equipped with the semicircle orifice, is provided with multiunit guide way around the semicircle orifice, because the guide way is along the radial setting of semicircle orifice, consequently each guide way mutually independent, the extrusion head of setting in the guide way is also mutually independent, mutually noninterfere, and no matter the quantity of guide way is few or more, can not cause the problem of mutual interference, consequently can set up the quantity of guide way as required, and then can accomplish the crimping of terminal polygon structural shape.

2. When the tubular terminal is required to be crimped on the end part of the cable, the polygonal terminal crimping device can be connected with a terminal machine, and particularly is connected with a driving mechanism of the terminal machine through a connecting part on a connecting plate; therefore, the driving mechanism of the terminal machine can drive the crimping dies to slide in the mounting grooves, so that the two crimping dies are close to each other; when the die holders of the two extrusion dies are mutually attached, and under the continuous extrusion of the driving mechanism, the compression springs in the two groups of extrusion dies can be compressed, so that the pushing pieces extrude the corresponding extrusion heads, the extrusion heads extend out of the guide grooves and extrude the terminals sleeved at the cable end parts, and the terminals are in crimping connection with the cable end parts. Because the extrusion heads slide according to the corresponding guide grooves, the polygonal shape formed by the mutual encircling of the extrusion heads is always a fixed shape, and the problem of inconsistent shapes of the terminals is avoided when the terminals are in crimping connection with the end parts of the cables, so that the quality of finished products after batch riveting is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a structural view of a polygonal terminal crimping apparatus provided in an embodiment of the present utility model.

Fig. 2 is a rear view of a polygonal terminal crimping apparatus according to an embodiment of the present utility model.

Fig. 3 is a structural diagram of a mounting seat of a polygonal terminal crimping device according to an embodiment of the present utility model.

Fig. 4 is a front view of an extrusion die of a polygonal terminal crimping apparatus provided in an embodiment of the present utility model.

Fig. 5 is a structural view of the back surface of the polygonal terminal crimping apparatus provided in the embodiment of the present utility model.

Fig. 6 is a block diagram of a die holder of a polygonal terminal crimping apparatus according to an embodiment of the present utility model.

Fig. 7 is a structural view of embodiment 2 of a polygonal terminal crimping apparatus provided in an embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In embodiment 1 of the polygonal terminal crimping apparatus of the present utility model, the polygonal terminal crimping apparatus of the present embodiment is a vertically arranged connection terminal machine. Referring to fig. 1 to 6, the extrusion die comprises a mounting seat 100 and two sets of extrusion dies 200, wherein a mounting groove 101 is formed on one side of the mounting seat 100, and an extrusion die slide 200 at the upper end is disposed in the mounting groove 101. The lower extrusion die 200 is fixed to the bottom end of the installation groove 101. Specifically, the extrusion die 200 includes a die holder 210, a connecting plate 220, a pusher 230, an extrusion head 240, and a compression spring 250. One end of the die holder 210 is provided with a semicircular hole 211, a plurality of groups of guide grooves 212 are radially arranged around the semicircular hole 211, one end of each guide groove 212 extends to form a sliding groove 213, and the sliding grooves 213 are mutually parallel. And each guide slot 212 is provided with an extrusion head 240, each sliding slot 213 is provided with a pushing piece 230 in a sliding manner, one end of the pushing piece 230 is attached to one end of the extrusion head 240, and the other end extends out of the sliding slot 213 to be connected with the connecting plate 220. The guide slot 212 is also provided with a limit slot 214, and the extrusion head 240 is provided with a limit pin 242 extending into the limit slot 214. The compression spring 250 is disposed between the die holder 210 and the connecting plate 220, and is used for pushing the connecting plate 220, so that one end of the pushing member 230 is far away from the guiding slot 212. The connection plate 220 of the sliding extrusion die 200 at the upper end thereof is provided with a connection portion 221 for connecting to a power mechanism of a terminal machine so that the power mechanism can drive the extrusion die 200 to slide in the mounting groove 101. Specifically, the present polygonal terminal crimping device of the present embodiment is composed of two sets of crimping dies 200 that are independently arranged, and the die holder 210 of the crimping dies 200 is provided with a semicircular hole 211, a plurality of sets of guide grooves 212 are provided around the semicircular hole 211, since the guide grooves 212 are arranged along the radial direction of the semicircular hole 211, the guide grooves 212 are mutually independent, the extrusion heads 240 arranged in the guide grooves 212 are also mutually independent and do not interfere with each other, and no matter how many guide grooves 212 are, the problem of mutual interference is not caused, so that the number of guide grooves 212 can be set as required, and crimping of the polygonal structure shape of the terminal can be completed.

When the tubular terminal is required to be crimped on the end part of the cable, the polygonal terminal crimping device can be connected with a terminal machine, and particularly, the polygonal terminal crimping device is connected with a driving mechanism of the terminal machine through a connecting part 221 on a connecting plate 220; the crimping die 200 at the upper end can be driven by the driving mechanism of the terminal machine to slide in the mounting groove 101 so that the two crimping dies 220 can approach each other; when the die holders 210 of the two extrusion dies 200 are attached to each other, and the compression springs 250 in the two sets of extrusion dies 200 are compressed by the continued extrusion of the driving mechanism, the pushing members 230 are thereby caused to press the corresponding extrusion heads 240, so that the extrusion heads 240 protrude from the guide grooves 212 and press the terminals fitted on the cable ends, so that the terminals are crimped on the cable ends. Since the extrusion heads slide according to the corresponding guide grooves 212, the polygonal shapes formed by the extrusion heads 240 are always fixed, and the problem of inconsistent shapes of the terminals is avoided when the terminals are pressed at the end parts of the cables, so that the quality of finished products after batch riveting is improved.

Preferably, referring to fig. 4 and 5, the guide slots 212 in the die holder 210 are four sets and are equiangularly disposed. The end of the pushing member 230 is provided with a pressing inclined surface which forms an acute angle with the sliding groove 213. The end face of the extrusion head 240 is attached to the extrusion bevel. Four sets of extrusion heads 240 are provided in the die holder 210 so that the terminals can be extruded into 8-deformed shapes when the two extrusion dies 200 extrude the terminals with each other, so that the eighth-direction terminal crimping can be achieved in this embodiment.

Further, referring to fig. 5, one end of the extrusion head 240 is extended with an extrusion portion 241, and the extrusion portion 241 and the end of the extrusion head 240 are formed with stepped positions. When the two extrusion dies 200 press-contact the terminal to the cable end, a clearance is formed by the step when the extrusion portions 241 are pressed close to each other to thereby clear the end of the terminal.

Further, referring to fig. 1 to 3, a slit 102 is provided on one side of the mount 100, and the slit 102 extends between the two extrusion dies 200. Therefore, when the cable sleeved on the terminal is extended between the two extrusion dies 202, the cable can enter between the two extrusion dies 200 from the notch 102 on the side surface of the mounting seat 100, so that the operation is convenient. And when the diameter of the connecting end of the terminal sleeved on the cable is large, the interval between the two extrusion dies 200 is not required to be increased, so that the height or the length of the whole polygonal terminal crimping device is not required to be increased.

Further, the end of the slit 102 is extended downward with a space avoiding groove 103, and the space avoiding groove 103 is used for avoiding the space of the cable. When the terminal is crimped onto the cable, the cable can be retracted and restrained through the clearance groove 103.

Embodiment 2 of the polygonal terminal crimping apparatus, please refer to fig. 7 and 3-6, which is different from the above embodiment in that the polygonal terminal crimping apparatus is horizontally disposed and both extrusion dies 200 are slidably disposed in the mounting groove 101; and the connection plates 240 of the two extrusion dies 200 are each provided with a connection portion 221, and each connection portion 221 is independently connected with a driving mechanism. When the terminal is crimped to the cable end by the polygonal terminal crimping device of the present embodiment, the two extrusion dies 200 can be simultaneously driven to move toward each other by the two drives. Since the two extrusion dies 200 are horizontally arranged and the two extrusion dies 200 move independently of each other, the self-centering effect can be achieved, and particularly, the center between the two extrusion dies 200 is always consistent, and the riveting of the terminal and the cable can be achieved without adjusting the positions of the two extrusion dies 200 no matter the linear size of the cable to be riveted.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The polygonal terminal crimping device is characterized by comprising a mounting seat and two groups of extrusion dies, wherein one side of the mounting seat is provided with a mounting groove, and at least one group of extrusion dies in the two extrusion dies is slidably arranged in the mounting groove;

the extrusion die comprises a die holder, a connecting plate, a pushing piece, an extrusion head and a compression spring; one end of the die holder is provided with a semicircular hole, a plurality of groups of guide grooves are radially arranged around the semicircular hole, one end of each guide groove extends to form a sliding groove, and the sliding grooves are mutually parallel; the guide grooves are internally provided with the extrusion heads, the sliding grooves are internally provided with the pushing and pressing parts in a sliding manner, one end of each pushing and pressing part is attached to one end of each extrusion head, and the other end of each pushing and pressing part extends out of each sliding groove to be connected with the connecting plate; a limiting groove is further formed in the guide groove, and a limiting pin extending into the limiting groove is arranged on the extrusion head; the compression spring is arranged between the die holder and the connecting plate and is used for extruding and pushing the connecting plate, so that one end of the pushing and pressing piece is far away from the guide groove;

the connecting plate of the extrusion die is provided with a connecting part which is used for connecting a power mechanism, so that the power mechanism can drive the extrusion die to slide in the mounting groove.

2. The polygonal terminal crimping apparatus according to claim 1, wherein: the guide grooves in the die holder are four groups and are distributed at equal angles; the end part of the pushing piece is provided with an extrusion inclined plane, and the extrusion inclined plane and the sliding groove form an acute angle; the end face of the extrusion head is attached to the extrusion inclined plane.

3. The polygonal terminal crimping apparatus according to claim 1, wherein: one end of the extrusion head extends to form an extrusion part, and a step is formed between the extrusion part and the end part of the extrusion head.

4. The polygonal terminal crimping apparatus according to claim 1, wherein: one side of the mounting seat is provided with a notch, and the notch extends to a position between the two extrusion dies.

5. The polygonal terminal crimping apparatus according to claim 4, wherein: the tail end of the notch extends downwards to form an empty avoiding groove, and the empty avoiding groove is used for avoiding empty cables.

6. The polygonal terminal crimping apparatus according to any one of claims 1 to 5, wherein: the mounting seats are vertically arranged, so that the two extrusion dies are arranged up and down, and the connecting plates of the extrusion dies positioned at the upper ends are provided with connecting parts; the connecting plate of the extrusion die at the lower end is fixedly arranged, and the die holder of the extrusion die at the lower end can slide up and down relative to the connecting plate.

7. The polygonal terminal crimping apparatus according to any one of claims 1 to 5, wherein: the mounting seats are horizontally arranged, so that the two extrusion dies are horizontally distributed; the connecting plates of the two extrusion dies are provided with connecting parts, and are independently connected with driving mechanisms.