TWM608492U - Crimping device of cable terminal - Google Patents

Abstract

A crimping device for a cable terminal, comprising a crimping seat, a driving device, a die seat and a connecting block. The connecting block connects the crimping seat and the die seat, and the driving device can drive the die seat linearly Move back and forth. The connecting block can form a mutual pulling force between the crimping seat and the die seat, in addition to effectively reducing the bending deformation of the crimping seat during the crimping process, thereby prolonging the use of the crimping seat In addition to the service life, the die seat can also be prevented from tilting toward the unconstrained side, thereby avoiding the situation that the driving device cannot be operated after a long time of use.

Description

Crimping device for cable terminal

This new model relates to a crimping device for cable terminals, especially a crimping device for cable terminals with a strengthened structure and improved durability.

A cable is a component composed of multiple wires side by side or bundled together to transmit current or signals. The ends of these wires can be joined together by crimping, welding or entanglement with insulating tape. To form an electrical connection. Among them, "crimping" refers to covering a sleeve portion of a cable terminal on the bare wire-shaped ends of the wires, and then using a crimping device to radially squeeze the sleeve portion of the cable terminal , The sleeve part is reshaped, and the cable terminal and the wires are tightly integrated with each other.

One of the prior art crimping devices mainly has a crimping base and a die base. The crimping seat is generally C-shaped, and two ends respectively protrude laterally to form a corresponding first end and a second end, and an opening is formed between the first end and the second end. The second end of the crimping seat is equipped with a hydraulic cylinder, and the die seat is arranged between the first end and the second end of the crimping seat, and is connected to the hydraulic cylinder, and can be affected by the hydraulic cylinder. Driven to move back and forth in a straight line along the route close to and away from the first end, the first end of the crimping seat and the die seat can be respectively equipped with crimping molds, and a crimping mold is formed on each crimping mold.接槽。 Connect slot.

When in use, the sleeve portion of the aforementioned cable terminal is first sleeved on the ends of the wires, and then the sleeve portion and the wires are passed through the crimping die set at the first end of the crimping seat In the crimping groove, the die seat is then driven to drive the crimping die on the die seat to move toward the first end of the crimping seat until the two crimping dies are in contact with each other, so that the sleeve part is in the The crimping grooves of the two crimping molds are squeezed and reshaped so as to be tightly integrated with the wires.

However, in the process of crimping the sleeve portion of the cable terminal, the die holder needs to continuously apply a force sufficient to deform the sleeve portion to the first end of the crimping seat, causing the crimping seat to be smooth. A slight buckling occurs in the direction of the force until the die holder moves away. Under the condition of repeatedly bearing the dynamic change of the stress, the first end of the crimping holder will easily break due to metal fatigue.

Furthermore, the aforementioned hydraulic cylinder for driving the die holder mainly has a cylinder barrel and a piston rod. One end of the piston rod penetrates the cylinder barrel and the other end is connected to the die holder, and can be driven to face each other. The cylinder is telescopic. When the piston rod is extended forward, the die seat can be driven to move toward the first end of the crimping seat, so that the two crimping dies can squeeze the sleeve portion of the crimping terminal in the crimping groove. And because the two crimping dies have a large pressing force on the sleeve portion, the die seat and the piston rod connecting the die seat are easily inclined toward the less restrained side, especially toward the crimping seat The opening between the first end and the second end is inclined. When the piston rod is inclined with respect to the axis of the cylinder tube, a gap is generated between the cylinder tube and the piston rod due to mutual wear. When the gap becomes larger and larger, the piston rod is easy to expand and contract. Because of the inability to move parallel to the axis of the cylinder, it is locked with the cylinder and cannot continue to move.

As mentioned above, the prior art cable terminal crimping device needs to be further improved.

In view of the aforementioned problems in the prior art, the purpose of this invention is to provide a crimping device for cable terminals with a strengthened structure and improved durability.

In order to achieve the above-mentioned creative purpose, the technical means adopted by the present invention is to make a crimping device for a cable terminal include: A crimping seat having an extension portion, a first end portion and a second end portion, the extension portion has a setting groove and a buckling guide groove, and the setting groove is recessed on a side surface of the extension portion , The buckling guide groove is concavely formed on the side surface of the extension part, and is located between the setting groove and a front end of the extension part, one end of the buckling guide groove communicates with the setting groove, and the buckle guide groove is in the The width of the opening formed by the side surface of the extension part is smaller than the width of the bottom of the buckling guide groove, the first end part protrudes laterally from the front end of the extension part, and the second end part is formed by a rear end of the extension part It protrudes laterally and is arranged corresponding to the first end; A driving device installed on the second end of the crimping base; A die seat, which is set between the first end and the second end of the crimping seat, and is connected to the driving device, and can be driven by the driving device to move closer to and away from the first end The route moves back and forth in a straight line, the die seat has a set of connecting grooves, and the set of connecting grooves is concavely formed on a ring side of the die seat; A connecting block, which has a certain connecting part and a moving connecting part, the fixed connecting part is arranged in the assembling groove of the die seat, and is fixedly connected with the die seat, the movable connecting block is broken The surface shape matches the cross-sectional shape of the buckling guide groove of the extension part of the crimping seat, and is movably arranged in the buckling guide groove to buckle with the crimping seat. The movable assembly portion It can move in the setting groove and the buckling guide groove of the extension part of the crimping seat.

The assembling groove of the die holder can penetrate through a rear end surface of the die holder, and the opening width of the assembling groove formed on the ring side surface of the die holder is smaller than the width of the bottom of the assembling groove. The cross-sectional shape of the fixed assembly part matches the cross-sectional shape of the assembly groove of the die seat.

The cross section of the buckling guide groove of the extension part of the crimping seat and the cross section of the assembling groove of the die seat can be in an inverted T shape.

One end of the above-mentioned die holder can be concavely formed with an end groove, a pin is arranged along the radial direction of the die holder, and one end of the pin is tightly inserted through the fixed assembly part of the connecting block. The other end is fastened through the die seat and protrudes toward the end groove of the die seat.

The extension portion of the above-mentioned crimping seat can further have a stop convex portion provided on the side surface of the extension portion close to the front end of the extension portion, and the buckle guide groove of the aforementioned extension portion is located between the set groove and the Between the stop protrusions.

The first end of the crimping seat can have an end surface and a fixed die groove, the end surface of the first end faces the second end, and the fixed die groove is concavely formed on the end surface of the first end, The above-mentioned die holder can have a front end surface and a movable die groove, the front end surface of the die holder faces the first end of the crimping seat, and the movable die groove is concavely formed on the front end surface of the die holder.

The above-mentioned driving device can have a cylinder and a piston rod. One end of the piston rod penetrates through the cylinder, and the other end protrudes outside the cylinder to connect to the die seat. The piston rod can be driven to be opposed to the cylinder. The cylinder is telescopic.

By the design that the connecting block is buckled to the crimping seat and the die seat, a mutual pulling force can be formed between the crimping seat and the die seat. The pulling force can effectively reduce the bending deformation amplitude of the crimping seat due to the force when crimping a sleeve part of a cable terminal and the terminals of multiple wires, thereby prolonging the service life of the crimping seat. The pulling force of the seat on the die seat can prevent the die seat from tilting toward the unconstrained side, thereby avoiding the situation that the driving device cannot be operated after a long time of use.

In the following, in conjunction with the drawings and the preferred embodiments of the present invention, the technical means adopted by the present invention to achieve the intended creation purpose are further described.

As shown in FIGS. 1 and 2, the crimping device of the cable terminal of the present invention includes a crimping base 10, a driving device 20, a die base 30 and a connecting block 40.

As shown in FIG. 3, the crimping seat 10 is generally C-shaped and has an extension portion 13, a first end portion 11 and a second end portion 12.

As shown in FIG. 5 and FIG. 6, opposite ends of the extension portion 13 are a front end and a rear end, respectively, and the extension portion 13 has a side surface, a stop protrusion 131, a setting groove 132, and a buckle. Connect the guide slot 133. The stopping convex portion 131 is provided on the side surface of the extension portion 13 close to the front end of the extension portion 13. As shown in FIG. 5, the setting groove 132 is concavely formed on the side surface of the extension portion 13 and is located close to the rear end of the extension portion 13. As shown in FIG. 6, the buckling guide groove 133 is concavely formed on the side surface of the extension portion 13, and is located between the setting groove 132 and the stop protrusion 131, and one end of the buckle guide groove 133 communicates with the setting groove 132. The groove 132, the width of the opening formed by the buckling guide groove 133 on the side of the extension portion 13 is smaller than the width of the bottom of the buckle guide groove 133.

The first end portion 11 protrudes laterally from the front end of the extension portion 13, and has an end surface and a fixed die groove 111, which is concavely formed on the end surface of the first end portion 11. The die groove 111 can accommodate a crimping die 51.

The second end portion 12 protrudes laterally from the rear end of the extension portion 13, and is disposed opposite to the first end portion 11. The end surface of the first end portion 11 faces the second end portion 12, and the aforementioned stop convex portion 131. The buckling guide groove 133 and the setting groove 132 are sequentially arranged between the first end portion 11 and the second end portion 12.

As shown in FIG. 7, the driving device 20 is installed on the second end 12 of the crimping base 10. In the specific embodiment of the present invention, the driving device 20 is a hydraulic cylinder, which has a cylinder tube 21 and a piston rod 22. One end of the piston rod 22 penetrates the cylinder tube 21 and the other end protrudes from the cylinder tube 21. The cylinder tube 21 is outside and can be driven to expand and contract relative to the cylinder tube 21.

4, the die seat 30 is provided between the first end 11 and the second end 12 of the crimping seat 10, and is connected to the piston rod 22 of the driving device 20, and can be driven by the The device 20 is driven to move back and forth in a straight line along a route close to and away from the first end 11. The die holder 30 has a ring side surface, a front end surface, a rear end surface, a movable die groove 31, a set of connecting grooves 32 and an end groove 33. The front end of the die seat 30 faces the first end 11 of the crimping seat 10, and the rear end face of the die seat 30 faces the second end 12 of the crimping seat 10 and is connected to the driving device 20. The movable die groove 31 is concavely formed on the front end surface of the die seat 30, and the movable die groove 31 can be used for mounting a crimping die 52. The assembling groove 32 is concavely formed on the ring side surface of the die seat 30 and penetrates the rear end surface of the die seat 30. The opening width of the assembling groove 32 on the ring side surface of the die seat 30 is smaller than that of the ring side surface of the die seat 30. The width of the bottom of the slot 32. The end groove 33 is concavely formed on the rear end surface of the die seat 30.

The connecting block 40 has a certain assembling part 41 and a movable assembling part 42. The cross-sectional shape of the fixed assembly portion 41 matches the cross-sectional shape of the assembly groove 32 of the die base 30, and is set in the assembly groove 32, and buckles with the die base 30. Fixed connection. The cross-sectional shape of the movable assembly portion 42 matches the cross-sectional shape of the buckling guide groove 133 of the extension 13 of the crimping seat 10, and is movably arranged in the buckling guide groove 133 to be in contact with the The crimping seat 10 is buckled with each other. When the die seat 30 is set on the crimping seat 10, the movable assembly portion 42 of the connecting block 40 is inserted into the extension 13 of the crimping seat 10 The groove 132 can then further move the movable connecting portion 42 into the buckling guide groove 133.

In the specific embodiment of the present invention, a pin 43 is used for a tight fit and penetrates the fixed assembly portion 41 of the connecting block 40 and the die seat 30 at the same time, so as to secure the connecting block 40 and the die seat 30 to each other. Pick up. Specifically, the plug 43 is arranged along the radial direction of the die holder 30, one end of the plug 43 is tightly penetrated through the fixed assembly portion 41 of the connecting block 40, and the other end of the plug 43 is tightly connected. It is inserted in the die seat 30 and protrudes toward the end slot 33 of the die seat 30, whereby the user can push from either end of the plug 43 to make the plug 43 separate from the connecting block 40 and the port The mold base 30 is used to remove and replace the connecting block 40 from the die base 30.

In the specific embodiment of the present invention, the buckling guide groove 133 of the extension 13 of the crimping seat 10 and the assembling groove 32 of the die seat 30 are grooves with an inverted T-shaped cross section. The connecting block The moving assembly portion 42 and the fixed assembly portion 41 of 40 are correspondingly formed as blocks with a T-shaped cross section and can be respectively disposed in the buckling guide groove 133 and the assembly groove 32, but not limited to this. The buckling guide groove 133 can also be a dovetail groove with a width that is tapered from the bottom of the buckling guide groove 133 toward the side surface of the extension portion 13, so that the two side walls in the buckling guide groove 133 are inclined. The assembling groove 32 can also be a dovetail groove whose width is tapered from the bottom of the assembling groove 32 toward the ring side of the die seat 30, so that the two side walls in the assembling groove 32 are inclined planes. The connecting block 40 The movable assembly portion 42 and the fixed assembly portion 41 are correspondingly formed as blocks with a dovetail cross section and can be respectively disposed in the buckling guide groove 133 and the assembly groove 32.

As shown in Fig. 7 and Fig. 8, the advantage of the present invention is that the connecting block 40 is used to buckle the crimping seat 10 and the die seat 30, which can be used between the crimping seat 10 and the die seat 30. A mutual pulling force is formed. With the pulling force of the die base 30 on the crimping base 10, the crimping device of the present invention is used to crimp a sleeve portion of a cable terminal and the terminals of multiple wires In the process, the crimping base 10 can effectively reduce the bending deformation amplitude due to the force, thereby prolonging the service life of the crimping base 10. Specifically, the crimping base 10 can be used to crimp the cable terminals. It can be increased from more than 20,000 times to 40,000 to 50,000 times. Furthermore, the pulling force of the crimping seat 10 on the die seat 30 can prevent the die seat 30 and the piston rod 22 from facing unrestrained The side is inclined, so as to avoid the situation that the driving device 20 cannot be operated after a long time of use.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed in the preferred embodiments as above, it is not intended to limit the present invention. Anyone who is familiar with the profession Without departing from the scope of the technical solution of the present invention, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

10: Crimp socket 11: The first end 111: Fixed die slot 12: second end 13: Extension 131: Stop convex 132: set slot 133: buckle guide groove 20: Drive 21: Cylinder 22: Piston rod 30: Die seat 31: Movable die slot 32: assembly slot 33: End groove 40: connection block 41: Fixed assembly 42: dynamic assembly 43: latch 51, 52: crimping die

Figure 1 is a perspective view of the new model. Figure 2 is a three-dimensional exploded view of the new model. Figure 3 is a perspective view of the new type of crimping base and driving device. Figure 4 is a three-dimensional exploded view of the new type of die seat and connecting block. Figure 5 is an end sectional view of the new model. Figure 6 is a schematic diagram of an end-view cross-sectional view of another position of the new model. Figure 7 is a side sectional view of the new model. Figure 8 is a side view cross-sectional action diagram of the new model.

10: Crimp socket

11: The first end

12: second end

13: Extension

20: Drive

30: Die seat

51: crimping mold

Claims (9)

A crimping device for cable terminals, which includes a crimping base, a driving device, a die base and a connecting block, wherein: The crimping seat has: An extension portion having a setting groove and a buckling guide groove, the setting groove is recessedly formed on a side surface of the extension portion, and the buckle guide groove is recessed formed on the side surface of the extension portion and is located in the setting groove Between a front end of the extension portion, one end of the buckling guide groove communicates with the setting groove, and the width of the opening formed by the buckle guide groove on the side surface of the extension portion is smaller than the width of the bottom of the buckle guide groove; A first end, which protrudes laterally from the front end of the extension; and A second end, which protrudes laterally from a rear end of the extension and is arranged corresponding to the first end; The driving device is installed on the second end of the crimping seat; The die seat is arranged between the first end and the second end of the crimping seat, and is connected to the driving device, and can be driven by the driving device to follow a route close to and away from the first end Moving back and forth in a straight line, the die seat has a set of connecting grooves, and the set of connecting grooves is concavely formed on a ring side of the die seat; The connecting block has a certain connecting part and a moving connecting part. The fixed connecting part is arranged in the assembling groove of the die seat and is fixedly connected to the die seat. The cross-sectional shape of the movable connecting block It is matched with the cross-sectional shape of the buckling guide groove of the extension part of the crimping seat, and is movably arranged in the buckling guide groove to buckle with the crimping seat. The crimping seat moves in the setting groove and the buckling guide groove of the extension part. The crimping device for cable terminals as described in claim 1, wherein: The assembling groove of the die holder penetrates a rear end surface of the die holder, and the width of the opening formed by the assembling groove on the ring side surface of the die holder is smaller than the width of the bottom of the assembling groove; The cross-sectional shape of the fixed assembly part of the connecting block matches the cross-sectional shape of the assembly groove of the die seat. The crimping device for a cable terminal according to claim 1, wherein the cross section of the buckling guide groove of the extension portion of the crimping seat is in an inverted T shape. The crimping device for a cable terminal according to claim 2, wherein the cross section of the buckling guide groove of the extension of the crimping seat is in an inverted T shape. The cable terminal crimping device according to claim 2 or 4, wherein the cross section of the assembling groove of the die holder is in an inverted T shape. The crimping device for a cable terminal according to claim 1 or 2, wherein one end of the slot is concavely formed in the rear end of the die holder, a pin is arranged along the radial direction of the die holder, and one end of the pin is tight It is fixedly pierced in the fixed assembly connection part of the connecting block, and the other end of the pin is tightly pierced in the die seat and protrudes toward the end groove of the die seat. The crimping device for a cable terminal according to claim 1 or 2, wherein the extension portion of the crimping seat further has a stop protrusion, and the stop protrusion is provided on a side surface of the extension portion close to the extension portion At the front end, the buckling guide groove of the aforementioned extension part is located between the setting groove and the stop convex part. The crimping device for cable terminals as described in claim 1 or 2, wherein: The first end of the crimping seat has an end surface and a certain die groove, the end surface of the first end faces the second end, and the fixed die groove is concavely formed on the end surface of the first end; The die seat has a front end surface and a movable die groove, the front end surface of the die seat faces the first end of the crimping seat, and the movable die groove is concavely formed on the front end surface of the die seat. The cable terminal crimping device according to claim 1 or 2, wherein the driving device has a cylinder and a piston rod, one end of the piston rod passes through the cylinder, and the other end protrudes from the cylinder The outside is connected to the die seat, and the piston rod can be driven to expand and contract relative to the cylinder.

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