CN112008657B

CN112008657B - Telescopic wire harness disassembling clamp

Info

Publication number: CN112008657B
Application number: CN202010891814.4A
Authority: CN
Inventors: 吴炜; 江新伟; 龚婕
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2022-03-25
Anticipated expiration: 2040-08-28
Also published as: CN112008657A

Abstract

The invention discloses a pair of telescopic wire harness disassembling pliers, which comprises two groups of pliers seats, pliers bodies, a sliding pipe assembly, a fixed seat and a bottom telescopic assembly, wherein the pliers bodies are rotationally connected with the pliers seats through bearings at the end parts, and the two pliers bodies are oppositely arranged; the lower end of each clamp seat is connected with the upper end of the sliding pipe assembly, the length of the sliding pipe assembly is adjustable, the lower end of the sliding pipe assembly is installed on the side part of the fixed seat, and the distance between the two clamp bodies is adjusted according to the installation positions of the two sliding pipe assemblies on the fixed seat; the fixing seat is provided with a magnet which is used for being adsorbed on other iron structures and used as a fulcrum, and the fixing seat is fixedly connected with the upper end of the telescopic component. The invention has the beneficial effects that: the distance from the clamp body connected with the clamp seat to the prying center (the position of the magnet) is changed, and the pulling degree of the wiring harness is reduced, so that the wiring harness and the corresponding interface are protected, and the service life of the wiring harness and the corresponding interface is prolonged.

Description

Telescopic wire harness disassembling clamp

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to a pair of telescopic wire harness disassembling pliers.

Background

In new energy vehicle chassis development process, relate to a lot of high low pressure pencil usually, this type of pencil diameter is thicker harder, and bend radius is big, connects the size big, and occupation space is also great in integrated level higher and higher vehicle chassis, can seem fairly inconvenient in the installation dismantlement in-process, and especially when dismantling, the dismantlement space is little, connects difficult dismantlement and makes the pencil nest book easily, consequently needs design specialized tool to dismantle.

Traditional pincers of taking out stitches all are that two criss-cross tong arms are articulated usually, through the joint of the mutual rotation of tong arm in order to centre gripping pencil, then directly draw the joint, and the application of force of being not convenient for in the less position in space of this kind of mode is unfavorable for dismantling the joint of motor pencil. At present, a tool designed aiming at small space and inconvenient force application is also provided, for example, a harness sheet metal riveting device is disclosed in Chinese patent CN 105665543B, a mounting seat of the device is fixed, a pneumatic pressure clamp rotates relative to the mounting seat, and a joint of a harness is pried by utilizing a lever principle so as to disassemble the joint of the harness from a corresponding interface. Although the structure is convenient for force application, the distance from the jaw of the pneumatic pressure clamp to the prying center (the position of the magnet) is not changed, the clamped joint is stressed in the inserting and pulling direction and is also stressed in the non-inserting and pulling direction when the pneumatic pressure clamp pries the joint to detach, a larger torsion moment is formed, the joint and the corresponding interface of the wire harness are repeatedly inserted and pulled under the action of the larger torsion moment, and the wire harness joint and the corresponding interface are easily damaged. As shown in fig. 2, the force F is an acting force applied by the folding pliers to the joint of the wiring harness, and has a component F1 along the inserting and pulling direction of the joint and a component F2 perpendicular to the inserting and pulling direction, because the distance from the jaw of the pneumatic pressure pliers to the rotation center is not changed, and the component F2 of the force F is large, the joint of the wiring harness is subjected to a large torque, and the joint of the wiring harness and the corresponding interface are easily damaged.

Disclosure of Invention

The invention aims to provide a pair of telescopic wire harness disassembling pliers which can avoid damage of a wire harness and is convenient to operate, aiming at the defects of the prior art.

The technical scheme adopted by the invention is as follows: a pair of telescopic wire harness dismantling pliers comprises two groups of pliers seats, pliers bodies, a sliding pipe assembly, a fixed seat and a bottom telescopic assembly, wherein the pliers bodies are rotatably connected with the pliers seats through bearings at the end parts, and the two pliers bodies are oppositely arranged; the lower end of each clamp seat is connected with the upper end of the sliding pipe assembly, the length of the sliding pipe assembly is adjustable, the lower end of the sliding pipe assembly is installed on the side part of the fixed seat, and the distance between the two clamp bodies is adjusted according to the installation positions of the two sliding pipe assemblies on the fixed seat; the fixing seat is provided with a magnet which is used for being adsorbed on other iron structures and used as a fulcrum, and the fixing seat is fixedly connected with the upper end of the telescopic component.

According to the scheme, the sliding pipe assembly comprises a first sliding pipe and a second sliding pipe, and the lower end of the first sliding pipe penetrates through the strip-shaped hole in the fixed seat and is connected with the fixed nut; the upper end of the first sliding pipe is sleeved with the lower end of the second sliding pipe, the first sliding pipe and the second sliding pipe can slide along the axial direction, and the upper end of the second sliding pipe is fixedly connected with the forceps holder.

According to the scheme, the first sliding pipe and the second sliding pipe are taper pipes with small upper ends and large lower ends, the large-caliber end of the first sliding pipe is connected with the fixing seat, the small-caliber end of the first sliding pipe is connected with the large-caliber end of the second sliding pipe, and the large-caliber end of the second sliding pipe is fixed with the caliper seat.

According to the scheme, the telescopic mechanism comprises a fixed pipe connected with the fixed seat and a telescopic pipe sleeved with the fixed pipe, the free end of the fixed pipe is provided with a limiting structure, the outer wall of the telescopic pipe is provided with a plurality of positioning holes at intervals along the axial direction, the limiting structure is matched with the positioning holes, and the length of the telescopic pipe extending out of the fixed pipe is locked.

According to the scheme, the limiting structure comprises a spring, a rotating pin, a fixing pin and a pressing plate, wherein the middle part of the pressing plate is hinged with a hinging seat arranged on the outer peripheral surface of the fixing tube through the rotating pin; when the pressing plate is positioned at one end of the fixed seat side, the spring is compressed, the fixed pin positioned at the other end of the pressing plate is separated from the positioning hole, and the telescopic pipe and the fixed pipe are unlocked; and (3) loosening the pressing plate, enabling one end of the pressing plate, which is positioned at the side of the fixing seat, to reset under the action of the restoring force of the spring, inserting the fixing pin, which is positioned at the other end of the pressing plate, into the positioning hole, and locking the telescopic pipe and the fixing pipe.

According to the scheme, the magnet is fixed on the rotary support, and the rotary support is rotatably connected with the fixed seat through the rotating shaft.

The invention has the beneficial effects that: 1. the invention takes the magnet as a fulcrum, utilizes the lever principle to disassemble the wire harness joint, and is convenient for the wire disassembling pliers to apply force. 2. The sliding pipe assembly is designed, the distance from a clamp body connected with the clamp seat to a prying center (the position of the magnet) is changed by utilizing the telescopic movement of the second sliding pipe in the first sliding pipe, and the pulling degree of the wiring harness folded and dragged is reduced, so that the wiring harness and a corresponding interface are protected, and the service lives of the wiring harness and the corresponding interface are prolonged. 3. The pincers body rotates with the pincers seat to be connected, prizes the in-process pincers body and can not follow the pincers seat and rotate, has reduced the torsion moment that the pencil connects and receives, avoids the pencil to connect and causes pencil to connect and corresponding interface fragile owing to receive great torsion moment repeatedly, is favorable to protecting joint and interface at the in-process of dismantling the joint of pencil, prolongs the life of the joint of pencil and corresponding interface. 4. The motor wire harness disassembling device is flexible and adjustable in operation length, can disassemble the motor wire harness in a limited space, and is simple and convenient to operate.

Drawings

Fig. 1 is a force analysis diagram of a conventional wire stripper in a process of prying a joint of a motor wire harness.

Fig. 2 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 3 is a front view of fig. 2.

Fig. 4 is a left side view of fig. 2.

Fig. 5 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 6 is a front view of fig. 5.

Fig. 7 is a left side view of fig. 5.

Wherein: 1. a telescopic pipe; 2. pressing a plate; 3. a fixing pin; 4. a rotation pin; 5. a spring; 6. a fixed tube; 6.1, positioning holes; 7. a magnet; 8. a fixed seat; 8.1, wing plates; 9. fixing a nut; 10. a first sliding tube; 11. a second sliding tube; 12. a clamp base; 13. a bearing; 14. a clamp body; 15. a rotating shaft; 16. rotating the bracket; 17. a limiting structure.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

A telescopic wire harness dismantling clamp comprises two groups of clamp seats 12, clamp bodies 14, a sliding pipe assembly, a fixed seat 8 and a telescopic assembly at the bottom, wherein the clamp bodies 14 are rotatably connected with the clamp seats 12 through bearings 13 at the end parts, and the two clamp bodies 14 are oppositely arranged; the lower end of each clamp seat 12 is connected with the upper end of a sliding pipe assembly, the length of the sliding pipe assembly is adjustable, the lower end of the sliding pipe assembly is arranged on the side part of the fixed seat 8, and the distance between the two clamp bodies 14 is adjusted according to the installation positions of the two sliding pipe assemblies on the fixed seat 8; the fixing seat 8 is provided with a magnet 7 which is used for being adsorbed on other iron structures as a fulcrum, and the fixing seat 8 is fixedly connected with the upper end of the telescopic component.

Preferably, the sliding pipe assembly comprises a first sliding pipe 10 and a second sliding pipe 11, the lower end of the first sliding pipe 10 passes through a strip-shaped hole arranged on the fixed seat 8 and is connected with the fixed nut 9; the upper end of the first sliding tube 10 is sleeved with the lower end of the second sliding tube 11, the first sliding tube and the second sliding tube can slide along the axial direction, and the upper end of the second sliding tube 11 is fixedly connected with the forceps holder 12.

In the invention, wing plates 8.1 are arranged on two sides of the upper part of a fixed seat 8, a strip-shaped hole is formed in each wing plate 8.1, and the end part of a first sliding pipe 10 can move along the length direction of the strip-shaped hole so as to adjust the distance between two clamp bodies 14, so that the clamp bodies 14 clamp the joint of a wiring harness. The end of the first sliding tube 10 can be locked to the fixed seat 8 by the fixing nut 9 after being adjusted to a proper position.

Preferably, the first sliding pipe 10 and the second sliding pipe 11 are both taper pipes with small upper ends and large lower ends, the large-caliber end of the first sliding pipe 10 is connected with the fixed seat 8, the small-caliber end of the first sliding pipe 10 is connected with the large-caliber end of the second sliding pipe 11, and the large-caliber end of the second sliding pipe 11 is fixed with the caliper seat 12. In the invention. The first sliding pipe 10 and the second sliding pipe 11 are both conical pipes with large lower ends and small upper ends, and the diameter of the opening at the upper end of the first sliding pipe 10 is smaller than the diameter of the opening at the lower end of the second sliding pipe 11, so that the second sliding pipe 11 can move relative to the first sliding pipe 10 in a telescopic manner, and the second sliding pipe 11 can be prevented from being separated from the first sliding pipe 10.

One end of the fixed seat 8, which is far away from the clamp body 14, is provided with a telescopic mechanism so as to adjust the length of the force arm during disassembly. Preferably, the telescopic mechanism comprises a fixed pipe 6 connected with the fixed seat 8 and a telescopic pipe 1 sleeved with the fixed pipe 6, the free end of the fixed pipe 6 is provided with a limiting structure 17, the outer wall of the telescopic pipe 1 is provided with a plurality of positioning holes 6.1 at intervals along the axial direction, the limiting structure 17 is matched with the positioning holes 6.1, the limiting structure 17 is inserted into the positioning holes 6.1 corresponding to the telescopic length according to actual needs, the length of the telescopic pipe 1 extending out of the fixed pipe 6 is locked, and the axial positioning of the fixed pipe 6 and the telescopic pipe 1 is realized. In the first and second embodiments, the extension tube 1 is sleeved inside the fixed tube 6.

Preferably, limit structure 17 includes spring 5, rotatory round pin 4, fixed pin 3 and clamp plate 2, and wherein, the middle part of clamp plate 2 is articulated with the articulated seat of locating fixed 6 outer peripheral faces of pipe through rotatory round pin 4, and clamp plate 2 is close to the one end of fixing base 8 and passes through spring 5 and hollow tube and link to each other, and the sub-unit connection fixed pin 3 of the 2 other ends of clamp plate, fixed pin 3 and locating hole 6.1 looks adaptation. When the pressing plate 2 is pressed at one end of the fixed seat 8 side, the spring 5 is compressed, the fixed pin 3 at the other end of the pressing plate 2 is separated from the positioning hole 6.1, at the moment, the telescopic pipe 1 and the fixed pipe 6 are unlocked, the telescopic pipe and the fixed pipe can axially move, and the total length of the telescopic structure can be adjusted; and (3) loosening the pressing plate 2, resetting the end, located on the side of the fixed seat 8, of the pressing plate 2 under the action of the restoring force of the spring 5, inserting the fixing pin 3, located at the other end of the pressing plate 2, into the positioning hole 6.1, and locking the telescopic pipe 1 and the fixing pipe 6 at the moment.

There is iron structure around new energy automobile's the motor pencil usually, can adsorb magnet 7 at iron structural, because the pipe fitting surface is the curved surface usually, adsorbs magnet 7 on the curved surface can rotate around the curved surface to make the dismantlement pincers prize the pencil. The mounting mode of the magnet 7 is various, and as shown in fig. 2 to 4, the magnet 7 is directly mounted on the fixing seat 8. As shown in 5 ~ 7, magnet 7 sets up on runing rest 16, runing rest 16 and fixing base 8 rotate through pivot 15 and be connected, and magnet 7 of this kind of mounting means also can adsorb to be fixed on the plane of new energy automobile motor pencil surrounding iron structure.

The specific working process of the invention is as follows:

1. the fixed nut 9 is loosened, the first sliding pipe 10 (which can be provided with a base and is connected with the fixed seat 8 through the base) moves along the strip-shaped hole of the fixed seat 8, and the distance between the two clamp bodies 14 is adjusted;

2. when the separation between the two clamp bodies 14 is matched with the fixed width of the wiring harness plug, the first sliding pipe 10 is locked by the fixing nut 9;

3. adsorbing a magnet 7 on an iron structure at a proper position of an automobile chassis;

4. the telescopic pipe 1 and the fixed pipe 6 are unlocked by using the limiting structure 17, and the telescopic length of the telescopic pipe 1 in the fixed pipe 6 is adjusted and then the fixed pin 3 is inserted into the positioning hole 6.1 to realize locking;

5. in the first embodiment, the magnet 7 is used as a fulcrum to press the extension tube 1, a lever effect is generated at the moment, and the clamp body 14 at the other end clamps the wiring harness joint and is far away from the wiring harness joint mounting seat along the direction vertical to the clamping surface of the clamp body 14; in the second embodiment, the magnet 7 is used as a fulcrum to press the telescopic tube 1, a lever effect is generated at this time, the rotating bracket 16 rotates around the rotating shaft 15, an outward acting force along the axial direction of the telescopic tube 1 is generated, and the wire harness joint clamped on the pincer body 14 is pulled out of the wire harness joint mounting seat along with the outward acting force;

6. when the wiring harness joint is pulled out of the wiring harness joint mounting seat, the clamp body 14 can rotate around the bearing 13, the clamp body 14 cannot rotate along with the clamp seat 12 due to prying of the clamp seat 12, and therefore the plug connector can be guaranteed to rotate along the direction with the minimum stress.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pair of telescopic wire harness dismantling pliers is characterized by comprising two groups of pliers seats, pliers bodies, a sliding pipe assembly, a fixed seat and a bottom telescopic assembly, wherein the pliers bodies are rotatably connected with the pliers seats through bearings at the end parts, and the two pliers bodies are oppositely arranged; the lower end of each clamp seat is connected with the upper end of the sliding pipe assembly, the length of the sliding pipe assembly is adjustable, the lower end of the sliding pipe assembly is installed on the side part of the fixed seat, and the distance between the two clamp bodies is adjusted according to the installation positions of the two sliding pipe assemblies on the fixed seat; have on the fixing base and be used for adsorbing the magnet as the fulcrum at other iron structural, the fixing base links to each other with the upper end fixed phase of flexible subassembly, flexible subassembly includes the fixed pipe that links to each other with the fixing base to and the flexible pipe that cup joints with fixed pipe, the free end of fixed pipe is equipped with limit structure, a plurality of locating holes are seted up along axial interval to flexible outer wall, and limit structure and locating hole looks adaptation lock flexible pipe and stretch out the length of fixed pipe.

2. The telescopic wire harness dismantling pliers according to claim 1, wherein the sliding pipe assembly comprises a first sliding pipe and a second sliding pipe, and a lower end of the first sliding pipe passes through a strip-shaped hole formed in the fixed base and is connected with the fixed nut; the upper end of the first sliding pipe is sleeved with the lower end of the second sliding pipe, the first sliding pipe and the second sliding pipe can slide along the axial direction, and the upper end of the second sliding pipe is fixedly connected with the forceps holder.

3. The retractable wire harness dismantling pliers according to claim 2, wherein the first sliding tube and the second sliding tube are tapered tubes having a small upper end and a large lower end, the large diameter end of the first sliding tube is connected to the fixed base, the small diameter end of the first sliding tube is connected to the large diameter end of the second sliding tube, and the large diameter end of the second sliding tube is fixed to the pliers base.

4. The retractable wire harness dismantling pliers according to claim 1, wherein the limiting structure comprises a spring, a rotating pin, a fixing pin and a pressing plate, wherein the middle part of the pressing plate is hinged to a hinge seat arranged on the outer peripheral surface of the fixing tube through the rotating pin, one end of the pressing plate close to the fixing seat is connected with the hollow tube through the spring, the lower part of the other end of the pressing plate is connected with the fixing pin, and the fixing pin is matched with the positioning hole; when the pressing plate is positioned at one end of the fixed seat side, the spring is compressed, the fixed pin positioned at the other end of the pressing plate is separated from the positioning hole, and the telescopic pipe and the fixed pipe are unlocked; and (3) loosening the pressing plate, enabling one end of the pressing plate, which is positioned at the side of the fixing seat, to reset under the action of the restoring force of the spring, inserting the fixing pin, which is positioned at the other end of the pressing plate, into the positioning hole, and locking the telescopic pipe and the fixing pipe.

5. The retractable wire harness dismantling pliers according to claim 1, wherein said magnet is fixed to a rotary bracket, and said rotary bracket is rotatably connected to said fixed base via a rotary shaft.