A crimping device for high and low voltage distribution cabinet terminal blocks

Abstract

The invention provides a terminal crimping device for a high- and low-voltage power distribution cabinet, belonging to the technical field of terminal crimping devices. The terminal crimping device for a high- and low-voltage power distribution cabinet comprises a base, a sliding assembly and a top cover, wherein the sliding assembly slides on the base, the top cover is arranged on the base, and further comprises: a roller group, wherein the roller group comprises three rollers in an annular array, wherein two of the rollers are arranged on the sliding assembly, and the other roller is arranged on the top cover; by abutting the rollers against the stripping ends of the wire harness, the rollers drive the insulating layer of the wire harness to rotate, so that the insulating layer can be screwed with the wire core through the friction between the insulating layer and the wire core, and at the same time, by tilting the rollers, the insulating layer can be stripped from the wire core while the wire core is screwed, and the wire core is screwed through the insulating layer, thereby avoiding the situation where the wire core is torn off.

Description

Technical Field

[0001] The invention belongs to the technical field of terminal crimping devices, and in particular relates to a crimping device for connecting terminals of a high- and low-voltage power distribution cabinet. Background Art

[0002] Electronic crimping technology in high and low voltage distribution cabinet wiring is an advanced connection process, which plays a vital role in the power system. Electronic crimping technology uses special crimping tools and equipment to make a firm and reliable connection between the wire and the terminal or other electrical components.

[0003] A Chinese patent with the authorization announcement number CN118137256B discloses a wiring harness terminal auxiliary crimping device, including a base, a placement table is provided on the top of the base, an arc-shaped placement groove is provided on the top surface of the placement table along the front-to-back direction, and the wiring harness to be crimped is placed in the placement groove, a telescopic component is provided at the bottom of the placement table, a lower clamping plate is provided on the front side of the placement table, the lower clamping plate is fixedly connected to the top of the base, an upper clamping plate is provided on the top of the lower clamping plate, and the upper clamping plate and the lower clamping plate are provided with a first arc groove and a second arc groove on the side opposite to the lower clamping plate. Before crimping the wiring harness and the wiring terminal, the first extrusion block can cooperate with the second extrusion block to screw the stripped end of the wiring harness, thereby facilitating the subsequent quick connection with the wiring terminal and improving the crimping efficiency of the wiring terminal and the wiring harness.

[0004] When the above-mentioned device performs the screwing operation on the stripped end of the wire harness, it is necessary to strip the insulation layer of the stripped end in advance, and then clamp the wire core inside the arc groove on the upper and lower clamping plates, and then the wire core can be screwed together. However, when the upper and lower clamping plates are pressing the wire core together, the wire core is already in a scattered state, and it is difficult for all the wire cores in the scattered state to be located inside the arc groove. Some wire cores may be located outside the arc groove and between the upper and lower clamping plates, which may easily cause the wire core to be clamped between the upper and lower clamping plates. Then, when the clamping plates and the arc groove rotate, there is a risk of tearing the wire core between the upper and lower clamping plates. If the diameter of the arc groove is increased to avoid the above problem, there will be a gap between the wire core and the arc groove, which makes it impossible to drive the wire core to be screwed together. Summary of the invention

[0005] The purpose of the present invention is to provide a crimping device for wiring terminals of high and low voltage distribution cabinets, aiming to solve the problem that the auxiliary crimping device for wiring harness terminals in the prior art easily clamps the scattered wire cores between the upper and lower clamping plates when the wiring harness is plugged into the wiring harness terminal, thereby making the wire cores easily torn off.

[0006] To achieve the above object, the present invention provides the following technical solution: a high and low voltage distribution cabinet terminal crimping device, comprising: a base, a sliding assembly and a top cover, the sliding assembly slides on the base, the top cover is arranged on the base, and further comprising:

[0007] A roller group, the roller group includes three rollers in an annular array, two of which are arranged on the sliding assembly, and another roller is arranged on the top cover, and the three rollers are rotated around a certain angle around a rotation axis which is perpendicular to the normal plane of the wire harness and passes through the rollers;

[0008] A driving assembly is arranged in the sliding assembly, and the driving assembly includes a belt and a roller. The roller can tighten the belt, and the belt can be against the roller, so that the belt drives the roller on the sliding assembly to rotate through friction.

[0009] A further technical solution of the present invention is that the sliding assembly includes a mounting member and a sliding member, the mounting member is arranged on the telescopic end of the hydraulic equipment, the sliding member slides inside the mounting member, the sliding member is provided with an inclined groove, the inclined groove is arranged in an eight-shaped shape, and extension shafts extending into the inclined groove are arranged on both sides of the roller, the extension shafts slide along the inclined groove, and the mounting member is provided with inclined surfaces that push the extension shafts to approach each other through the inclined groove.

[0010] A further technical solution of the present invention is that the driving assembly is arranged on a mounting member, and a tensioning wheel is also arranged on the mounting member. The tensioning wheel slides on the mounting member through a slide groove, and lifting blocks are rotatably arranged at both ends of the tensioning wheel, and an elastic member is arranged on the lifting block.

[0011] A further technical solution of the present invention is that a pulling member is provided inside the inclined groove, and the pulling member can pull the extension shafts away from each other.

[0012] A further technical solution of the present invention is that there is a distance between the inclined surface and the extended axis.

[0013] A further technical solution of the present invention is that the inclined surface can be inclined in the direction in which the extension axis is inclined.

[0014] A further technical solution of the present invention is that one side of the top cover is hinged to one side of the base, and the other side is fixed to the base by a latch, a fixing seat is arranged on the top cover, and one of the rollers is arranged on the fixing seat.

[0015] A further technical solution of the present invention is that a friction surface is provided on the outer surface of the roller.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By pressing the roller against the stripping end of the wire harness, the roller drives the insulation layer of the wire harness to rotate, so that the insulation layer can be screwed to the wire core through the friction between the insulation layer and the wire core. At the same time, by tilting the roller, the wire core can be screwed and the insulation layer can be stripped from the wire core at the same time. The wire core is screwed through the insulation layer to avoid the wire core being torn.

[0018] 2. After stripping the insulation layer on the wire harness and twisting the wire core, insert the terminal onto the wire core, and then use the sliding assembly to drive the roller to squeeze the terminal, thereby achieving the purpose of crimping the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0021] Figure 2 It is an axonometric cross-sectional view of a specific embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the position distribution structure of the roller in a specific embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the installation structure of the roller in a specific embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the installation structure of the installation part and the interactive part in a specific embodiment of the present invention;

[0025] Figure 6 It is a schematic diagram of the installation structure of the driving assembly in a specific embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the inclination direction of the roller in a specific embodiment of the present invention.

[0027] In the figure: 1. base; 11. top cover; 12. latch; 13. fixed seat; 2. roller assembly; 21. roller; 211. extension shaft; 3. sliding assembly; 31. mounting member; 311. inclined plane; 32. sliding member; 321. inclined groove; 322. pulling member; 4. driving assembly; 41. belt; 42. roller; 43. tensioning wheel; 44. slide groove; 45. elastic member; 46. lifting block; 47. driving source; 5. wiring harness. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 6 , the present invention provides the following technical solutions: a high and low voltage distribution cabinet terminal crimping device, a base 1, a roller group 2, a sliding component 3 and a driving component 4;

[0030] The sliding component 3 is arranged on the base 1 and can slide on the base 1. The roller group 2 is arranged on the sliding component 3. When the sliding component 3 slides on the base 1, it can resist the wire harness 5. The driving component 4 is arranged on the sliding component 3 and can drive the roller group 2 to rotate. Since each roller 21 in the roller group 2 is arranged at an angle, the insulating layer of the wire harness 5 can be driven to be pulled out from the wire core while rotating. When the insulating layer rotates, the friction between the insulating layer and the wire core causes the wire core to be twisted.

[0031] See also Figure 1-Figure 3 A hydraulic device is installed on the base 1, and a hydraulic oil pipe is connected to the hydraulic device. The hydraulic device is a hydraulic cylinder, and one end of the hydraulic cylinder is connected to the sliding component 3, so that the sliding component 3 is placed in the concave part of the base 1 and can slide toward the opening direction of the concave part of the base 1. A top cover 11 is provided at the opening of the base 1. The top cover 11 is also concave, and the opening is arranged opposite to the base 1. One side of the top cover 11 is hinged to one side of the base 1, and the other side is fixed to the base 1 by a latch 12. A fixing seat 13 is fixed to the concave part of the top cover 11 by screws, and the roller group 2 is arranged on the sliding component 3 and the fixing seat 13;

[0032] Before using the device, first use wire strippers to cut an incision on the stripped end of the wire harness 5 (it should be noted that the cut insulation layer remains on the wire core), then put the stripped end into the roller group 2, and drive the sliding component 3 to approach the fixed seat 13 through the hydraulic equipment on the base 1, so that the sliding component 3 drives the roller group 2 to abut against the insulation layer of the wire harness 5, and then the roller group 2 can screw the wire core in the wire harness 5.

[0033] The sliding assembly 3 includes a mounting member 31 and a sliding member 32. The mounting member 31 is fixedly mounted on the telescopic end of the hydraulic equipment, and the mounting member 31 can slide inside the base 1. A sliding cavity is provided inside the mounting member 31. The sliding member 32 slides inside the sliding cavity and enables the sliding member 32 to slide in the direction of the fixed seat 13. Of course, in order to prevent the sliding member 32 from detaching from the mounting member 31, a limit block (not shown in the figure) can be provided on the mounting member 31 to prevent the sliding member 32 from sliding off the mounting member 31.

[0034] Please continue reading Figure 1-Figure 3 The roller group 2 is composed of three rollers 21 in an annular array, two of which are mounted on the sliding member 32 and the other is mounted on the fixed seat 13. The three rollers 21 are all inclined. For details, please refer to Figure 6 First, the axis of the wire harness 5 is set parallel to the axis of the roller 21, and then the rotation axis that is perpendicular to the normal plane of the wire harness 5 and passes through the roller 21 is used as the axis, and the roller 21 is rotated counterclockwise by 5°-15° around the axis. The other two rollers 21 are rotated by the same angle using the above method, so that the rollers 21 are set tilted. The two rollers 21 located on the sliding member 32 are connected to the driving component 4, so that the driving component 4 can drive the two rollers 21 to rotate counterclockwise at the same time.

[0035] When in use, the three rollers 21 can be abutted against the outer surface of the stripping end of the wire harness 5 by the action of the sliding member 32. At this time, the other end of the wire harness 5 needs to be fixed. Specifically, the wire harness 5 can be clamped and fixed by an existing fixing member, or the wire harness 5 can be fixed by manually holding it, and then the driving component 4 is started to drive the two rollers 21 on the sliding member 32 to rotate. Figure 3 The direction of rotation of the roller 21 is counterclockwise. At this time, the friction between the roller 21 and the insulation layer of the wire harness 5 makes the insulation layer of the stripping end rotate with the roller 21. At this time, the roller 21 located on the fixed seat 13 can rotate with the insulation layer of the stripping end through friction. Since the wire harness 5 is in a fixed state, the insulation layer at the stripping end can rotate relative to the wire harness 5 and the wire core. Since there is friction between the insulation layer of the stripping end and the wire core, the insulation layer will drive the wire core of the stripping end to be twisted. That is to say, one end of the wire core is fixed, and the other end is twisted by the rotation of the insulation layer. Since the roller 21 is inclined, the roller 21 can follow a spiral trajectory on the outer surface of the insulation layer. Since the roller 21 cannot move left and right, the insulation layer of the stripping end can also be pulled out from the wire core while rotating, thereby achieving the effect of twisting the wire core and stripping the insulation layer at the same time.

[0036] A friction surface is provided on the outer surface of the roller 21 to increase the friction force between the roller 21 and the insulating layer of the wire harness 5 .

[0037] See also Figure 2 , Figure 5 and Figure 6 The driving assembly 4 includes a belt 41 arranged in the mounting member 31 and a roller 42 used in conjunction with the belt 41. The rollers 42 are provided with three rollers 42, which are distributed in a triangular shape inside the sliding cavity of the mounting member 31 and open the belt 41. At the same time, the belt 41 can be rotated inside the mounting member 31. A driving source 47 for driving one of the rollers 42 to rotate is provided on the mounting member 31, so that the belt 41 can rotate inside the mounting member 31. A tensioning wheel 43 is provided on the mounting member 31. The tensioning wheel 43 slides on the mounting member 31 through a slide groove 44. Lifting blocks 46 are rotatably provided at both ends of the tensioning wheel 43. An elastic member 45 is provided on the lifting block 46. The elastic member 45 is a compression spring, one end of which is fixed to the lifting block 46, and the other end is fixed to the mounting member 31 through a fixing plate.

[0038] When it is necessary to drive the roller 21 to rotate, the hydraulic equipment is used to drive the mounting member 31 and the sliding member 32 to approach the wiring harness 5, so that the roller 21 on the sliding member 32 is abutted against the wiring harness 5, and then the belt 41 on the mounting member 31 is abutted against the other side of the roller 21. By starting the driving source 47, a roller 42 is driven to rotate, which can drive the belt 41 to rotate, and then drive multiple rollers 42 to rotate. When the belt 41 rotates, the friction force can drive the two rollers 21 to rotate in the same direction. By setting the tensioning wheel 43, the belt 41 can be tensioned. At the same time, when the roller 21 presses down the belt 41 excessively, the belt 41 can also be buffered to avoid the risk of the belt 41 being broken.

[0039] See also Figure 1 , Figure 4 and Figure 6The sliding member 32 is provided with two groups of inclined grooves 321, each group of inclined grooves 321 corresponds to a roller 21, and both sides of the roller 21 extend to the inside of the inclined groove 321 through the extension shaft 211. The two groups of inclined grooves 321 are mirror-imaged and formed in an eight-shaped shape. When the length of the inclined groove 321 is extended, the intersection thereof coincides with the axis of the wire harness 5. At the same time, a pulling member 322 is also provided inside the inclined groove 321. The pulling member 322 is an elastic rope or a tension spring, one end of which is fixed to the bottom of the inclined groove 321 and the other end is rotated on the extension shaft 211 of the roller 21 through a sleeve, so as to limit the free sliding of the roller 21 and prevent the two rollers 21 from sliding after being inserted into the wire harness 5. In order to solve the problem that the front part will be located at the top of the inclined groove 321, an inclined surface 311 is provided on the mounting member 31, and there is a distance between the inclined surface 311 and the extension shaft 211. When the inclined surface 311 abuts against the extension shaft 211, the roller 21 can compress a part of the elastic member 45 through the belt 41 and the tensioning wheel 43, so that the elastic member 45 pushes the belt 41 and the roller 21 to abut against each other through elastic force, so as to increase the friction between the roller 21 and the belt 41. When the sliding member 32 slides inside the mounting member 31, the inclined surface 311 can abut against the extension shaft 211, so that the inclined surface 311 pushes the extension shaft 211 to slide inside the inclined groove 321, thereby pushing the roller 21 to move in the direction of the wiring harness 5;

[0040] Since the roller 21 is inclined, the extension shaft 211 is also inclined. In this case, the contact position between the extension shaft 211 and the inclined surface 311 becomes point contact, which makes the extension shaft 211 more susceptible to wear. Therefore, the inclined surface 311 can be inclined in the direction in which the extension shaft 211 is inclined, so that the inclined surface 311 and the extension shaft 211 are in line contact, thereby increasing the service life of the extension shaft 211.

[0041] In this process, the screwed wire core needs to be inserted into the terminal, and then the hydraulic equipment pushes the sliding assembly 3 to move close to the fixed seat 13, so that the three rollers 21 are all against the outer surface of the wire harness 5, and then the hydraulic equipment continues to push the sliding assembly 3 to move, so that the sliding member 32 retracts into the interior of the mounting member 31, so that the extension shaft 211 on the roller 21 is against the inclined surface 311, and the roller 21 moves along the direction of the inclined groove 321, so that the roller 21 squeezes and deforms the terminal, thereby achieving the purpose of crimping the terminal.

[0042] Working principle: The device needs to adopt two steps when in use. Step one is used to screw the wire core together. First, the insulating layer on the outer surface of the wire harness 5 is cut in a circular shape, and then the wire harness 5 is inserted between the three rollers 21. The hydraulic equipment is started to move the mounting member 31 and the sliding member 32 toward the fixed seat 13 until they are against the outer surface of the wire harness 5. In this state, the elastic member 45 is in a state of slight compression. At this time, the elastic member 45 can apply pressure to the roller 21 through the tensioning wheel 43 and the belt 41, thereby increasing the friction between the roller 21 and the wire harness 5, and also increasing the friction between the roller 21 and the belt 41. Next, the driving source 47 is started to drive the roller 42 to rotate, so that the belt 41 can be rotated. The belt 41 can rotate the roller 21 through friction. When the roller 21 rotates, the stripping end of the insulation layer of the wire harness 5 can be rotated relative to the wire core, and there is friction between the insulation layer and the wire core, so that the wire core can be screwed together. Since the roller 21 is arranged at an angle, the roller 2 1 can also be rotated to remove the insulation layer from the wire core. At this time, the stripped end of the wire harness 5 is in a screwed state after stripping. Step 2 is the pressing work with the terminal. When operating step 2, the mounting member 31 and the sliding member 32 are first returned to their original positions, so that the three rollers 21 are in an open state. At this time, the terminal is inserted into the screwed wire core, and then the terminal and the screwed wire core are placed between the three rollers 21. The hydraulic device is started again to drive the mounting member 31 and the sliding member 32 to approach the fixing seat 13 again. First, the three rollers 21 are abutted against the outer surface of the terminal block. At this time, the sliding member 32 and the two rollers 21 located on the sliding member 32 stop moving, and the hydraulic equipment continues to drive the mounting member 31 to move. The inclined surface 311 on the mounting member 31 abuts against the extension shaft 211 on the roller 21, so that the inclined surface 311 pushes the extension shaft 211 to slide inside the inclined groove 321, thereby driving the two rollers 21 to squeeze the terminal block toward the position of the terminal block and squeeze and deform the terminal block, thereby achieving the crimping work of the terminal block.

Claims

1. A high and low voltage distribution cabinet terminal crimping device, comprising: A base (1), a sliding assembly (3) and a top cover (11), wherein the sliding assembly (3) slides on the base (1), and the top cover (11) is arranged on the base (1), characterized in that it also comprises: A roller assembly (2), the roller assembly (2) comprising three rollers (21) in an annular array, wherein two of the rollers (21) are arranged on the sliding assembly (3), and another roller (21) is arranged on the top cover (11), and the three rollers (21) rotate at a certain angle around a rotation axis which is perpendicular to the normal plane of the wire harness (5) and passes through the rollers (21); A driving assembly (4), the driving assembly (4) being arranged in the sliding assembly (3), the driving assembly (4) comprising a belt (41) and a roller (42), the roller (42) being capable of tensioning the belt (41), the belt (41) being capable of abutting against the roller (21), so that the belt (41) drives the roller (21) on the sliding assembly (3) to rotate through friction; The sliding assembly (3) comprises a mounting member (31) and a sliding member (32); the mounting member (31) is arranged on the telescopic end of the hydraulic device; the sliding member (32) slides inside the mounting member (31); an inclined groove (321) is arranged on the sliding member (32); the inclined groove (321) is arranged in an "eight" shape; both sides of the roller (21) are provided with extension shafts (211) extending into the inclined groove (321); the extension shafts (211) slide along the inclined groove (321); and the mounting member (31) is provided with inclined surfaces (311) for pushing the extension shafts (211) to approach each other through the inclined groove (321).

2. A high and low voltage distribution cabinet terminal crimping device according to claim 1, characterized in that: The driving assembly (4) is arranged on the mounting member (31), and a tensioning wheel (43) is also arranged on the mounting member (31). The tensioning wheel (43) slides on the mounting member (31) through a slide groove (44), and lifting blocks (46) are rotatably arranged at both ends of the tensioning wheel (43), and an elastic member (45) is arranged on the lifting block (46).

3. A high and low voltage distribution cabinet terminal crimping device according to claim 1, characterized in that: A pulling member (322) is provided inside the inclined groove (321), and the pulling member (322) is capable of pulling the extension shafts (211) away from each other.

4. A high and low voltage distribution cabinet terminal crimping device according to claim 1, characterized in that: There is a distance between the inclined surface (311) and the extended axis (211).

5. A high and low voltage distribution cabinet terminal crimping device according to claim 1, characterized in that: The inclined surface (311) can be inclined in a direction in which the extension axis (211) is inclined.

6. A high and low voltage distribution cabinet terminal crimping device according to claim 1, characterized in that: One side of the top cover (11) is hinged to one side of the base (1), and the other side is fixed to the base (1) via a latch (12); a fixing seat (13) is provided on the top cover (11), and one of the rollers (21) is provided on the fixing seat (13).

7. A high and low voltage distribution cabinet terminal crimping device according to any one of claims 1 to 6, characterized in that: A friction surface is provided on the outer surface of the roller (21).

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