Wire harness cutting device for automobile wire harness production

Abstract

The invention relates to a wire harness cutting device for automobile wire harness production, which comprises a bottom plate and a shielding cover fixedly mounted at the top of the bottom plate, a hydraulic cylinder is fixedly inserted into the top of the shielding cover, a cutter for cutting a wire harness is fixedly mounted at the extending end of the hydraulic cylinder, and a heating mechanism for removing burrs at the cutting end of the wire harness is arranged on one side of the cutter. A supporting table is further fixedly arranged at the top of the bottom plate, and a tightening mechanism used for pulling a linear bundle is arranged on one side of the supporting table; the extending end of the hydraulic cylinder is controlled to be shrunk to be the shortest, in the process, a third shifting rod drives an overturning plate to rotate, a lifting table moves downwards, the output end of a blowing pipe penetrates through the position between two connecting frames to be tightly attached to a sealing plug, at the moment, the output end of a heating pipe slides downwards to correspond to the wire harness cutting end, and therefore hot air flow is blown out from the output end of the heating pipe; therefore, hot airflow melts burrs at the cutting end of the wire harness insulating layer, and quality reduction of subsequent assembly and welding of the automobile wire harness is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile wire harness production, in particular to a wire harness cutting device for automobile wire harness production. Background Art

[0002] The automotive wiring harness is a component that is formed by crimping the contact terminals made of copper materials with the wires and cables, and then plasticizing the insulator or adding a metal shell on the outside to form a wiring harness to connect the circuit. It is responsible for connecting the various electrical and electronic components of the car, ensuring the reliable transmission of current and electrical signals, so that the car can run normally and stably. The process of producing automotive wiring harnesses includes cutting them to ensure that each automotive wiring harness reaches the required length to meet the connection requirements of the automotive electrical system.

[0003] At present, in the process of cutting the automobile wiring harness, since the automobile wiring harness is relatively hard at room temperature, it is inconvenient to adjust its position, which easily causes the cut end of the automobile wiring harness to tilt, resulting in insufficient contact area between the wire core and the terminal, affecting the quality of subsequent crimping; at the same time, in the existing process of cutting the automobile wiring harness, burrs are easily left at the cut end of the insulation layer, resulting in a decrease in the quality of subsequent assembly and welding of the automobile wiring harness. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that in the existing process of cutting the automobile wiring harness, burrs are easily left at the cut end of the insulation layer, resulting in a decrease in the quality of subsequent assembly and welding of the automobile wiring harness;

[0006] (2) How to solve the problem that the cutting end of the automotive wiring harness is prone to tilt due to the inconvenience in adjusting its position, resulting in insufficient contact area between the wire core and the terminal, affecting the subsequent crimping quality.

[0007] The object of the present invention can be achieved by the following technical scheme: A wire harness cutting device for automobile wire harness production, comprising a bottom plate and a shielding cover fixedly mounted on the top thereof, a hydraulic cylinder fixedly inserted on the top of the shielding cover, the hydraulic cylinder is longitudinally arranged, and a cutter for cutting the wire harness is fixedly installed on the extended end of the hydraulic cylinder, a heating mechanism for removing burrs at the cut end of the wire harness is arranged on one side of the cutter, a support platform is also fixedly arranged on the top of the bottom plate, and a tensioning mechanism for straightening the wire harness is arranged on one side of the support platform;

[0008] The heating mechanism includes a lifting platform slidably connected to the inner wall of the shielding cover through a guide rail. The side of the lifting platform close to the hydraulic cylinder is fixedly connected with a blowing pipe through a mounting frame. The output end of the blowing pipe is inclined and arranged toward one end of the wiring harness.

[0009] A further technical improvement of the present invention is that: a heating pipe is fixedly connected to the middle of the blowing pipe, a baffle is fixedly installed on the inner wall of the shielding cover, and the position of the baffle corresponds to the position of the output end of the heating pipe.

[0010] A further technical improvement of the present invention is that a flip plate is rotatably arranged on the inner wall of the shielding cover, the top of the lifting platform is movably connected to one end of the flip plate through a first lever, and the middle part of the flip plate away from the first lever is elastically connected to the baffle through a tension spring.

[0011] A further technical improvement of the present invention is that: the extended end of the hydraulic cylinder is slidably connected to the other end of the flip plate through a second lever, and the flip plate is located above the second lever; by controlling the extended end of the hydraulic cylinder to shrink to the shortest, during this process, the third lever drives the flip plate to rotate, and the lifting platform moves downward, and the output end of the blow pipe passes through the two connecting frames and is tightly attached to the sealing plug. At this time, the output end of the heating tube slides down to correspond to the position of the wire harness cutting end, so that the hot air flow will be blown out from the output end of the heating tube. Since the distance between the output end of the heating tube and the wire harness cutting end is close, the hot air flow melts the burrs on the cutting end of the wire harness insulation layer, thereby avoiding the quality decline of subsequent assembly and welding of the automotive wire harness.

[0012] A further technical improvement of the present invention is that a hot air blower is fixedly installed on the inner wall of the shielding cover, the input end of the hot air blower is fixedly connected to an air inlet pipe, the input end of the air inlet pipe passes through the shielding cover, the output end of the hot air blower is fixedly connected to a hose, and the output end of the hose is connected to the top of the blowing pipe.

[0013] A further technical improvement of the present invention is that the tensioning mechanism includes a cylinder fixedly inserted on the side wall of the shielding cover, the cylinder is arranged horizontally, and the protruding end of the cylinder is fixedly installed with a clamping tool for fixing the end of the wire harness, the clamping tool is a prior art, and the bottom of the clamping tool is rollingly connected to the base plate through a plurality of rollers.

[0014] A further technical improvement of the present invention is that a pin shaft is fixedly installed on the inner wall of the shielding cover, and two L-shaped plates are rotatably provided in the middle of the pin shaft, one end of the two L-shaped plates are fixedly connected to a connecting frame, and one end of the two connecting frames are commonly fixedly connected to a positioning plate.

[0015] A further technical improvement of the present invention is that: a fixing plate is also fixedly installed on the extended end of the cylinder, a third lever is fixedly installed on the top of the fixing plate, and an L-shaped groove is provided at the ends of the two L-shaped plates away from the connecting frame, and the two ends of the third lever are movably connected to the two L-shaped grooves respectively; by controlling the extended end of the cylinder to shrink from the longest to the set length, the two ends of the third lever slide from one end of the two L-shaped grooves to the middle thereof, driving the two connecting frames to rotate, fixing the middle of the wiring harness through the positioning plate and the support platform, turning on the hot air blower, and blowing out the hot air flow along the hose injection The hot air flow in the blowing pipe is mixed with the outside air to continuously heat the wire harness and soften it. Then the extended end of the cylinder is controlled to shrink to the shortest. The two ends of the third lever slide from the middle of the two L-shaped grooves to the other end. During this process, the position of the positioning plate does not change, which makes it easy to tighten and straighten the wire harness through the clamping tooling to prevent the cut end of the wire harness from tilting, so that the contact area between the wire core and the terminal is sufficient to avoid affecting the quality of subsequent crimping.

[0016] A further technical improvement of the present invention is that a sealing plug arranged obliquely is fixedly mounted on the bottom plate below the clamping tooling, and the position of the sealing plug corresponds to the position of the output end of the blowing pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the present invention is in use, the extended end of the hydraulic cylinder is controlled to shrink to the shortest. During this process, the third lever drives the flip plate to rotate, the lifting platform moves downward, and the output end of the blowing pipe passes through the two connecting frames and is tightly attached to the sealing plug. At this time, the output end of the heating tube slides down to correspond to the position of the wire harness cutting end, so that the hot air flow will be blown out from the output end of the heating tube. Since the distance between the output end of the heating tube and the wire harness cutting end is relatively close, the hot air flow melts the burrs on the cutting end of the wire harness insulation layer, thereby avoiding the quality decline of subsequent assembly and welding of the automobile wire harness.

[0019] When the present invention is in use, by controlling the extended end of the cylinder to shrink from the longest to the set length, the two ends of the third lever slide from one end of the two L-shaped grooves to the middle thereof, driving the two connecting frames to rotate, and fixing the middle part of the wiring harness through the positioning plate and the support platform, turning on the hot air blower, and the blown hot air flow is injected into the blowing pipe along the hose. Since the baffle blocks the output end of the heating pipe, the hot air flow in the blowing pipe will be blown out from its output end, and the blown hot air flow is mixed with the outside air to continuously heat the wiring harness to soften the wiring harness, and then continue to control the extended end of the cylinder to shrink to the shortest, and the two ends of the third lever slide from the middle of the two L-shaped grooves to the other end thereof. During this process, the position of the positioning plate does not change, which is convenient for tightening and straightening the wiring harness through the clamping tooling, preventing the cut end of the wiring harness from tilting, making the contact area between the wire core and the terminal sufficient, and avoiding affecting the quality of subsequent crimping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the overall front structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the heating mechanism structure of the present invention;

[0024] Figure 4 It is a three-dimensional schematic diagram of the local structure of the heating mechanism of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the tensioning mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the local structure of the tensioning mechanism of the present invention.

[0027] In the figure: 1. hydraulic cylinder; 2. support platform; 3. bottom plate; 4. cylinder; 5. shielding cover; 6. heating mechanism; 7. cutter; 8. tensioning mechanism; 9. air inlet pipe; 10. hot air blower; 601. flip plate; 602. second lever; 603. tension spring; 604. baffle; 605. blowing pipe; 606. heating pipe; 607. guide rail; 608. hose; 609. lifting platform; 610. first lever; 801. positioning plate; 802. sealing plug; 803. clamping tool; 804. L-shaped groove; 805. fixing plate; 806. L-shaped plate; 807. connecting frame; 808. pin shaft. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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 As shown, a wire harness cutting device for automobile wire harness production includes a base plate 3 and a shielding cover 5 fixedly installed on the top thereof, a hydraulic cylinder 1 is fixedly inserted on the top of the shielding cover 5, the hydraulic cylinder 1 is longitudinally arranged, and a cutter 7 for cutting the wire harness is fixedly installed on the extended end of the hydraulic cylinder 1, a heating mechanism 6 for removing burrs at the cut end of the wire harness is arranged on one side of the cutter 7, a support platform 2 is also fixedly arranged on the top of the base plate 3, and a tensioning mechanism 8 for straightening the wire harness is arranged on one side of the support platform 2.

[0030] See also Figure 2 and Figure 3 As shown, the above-mentioned heating mechanism 6 includes a lifting platform 609 which is slidably connected to the inner wall of the shielding cover 5 through a guide rail 607. The lifting platform 609 is fixedly connected to a blow pipe 605 on the side close to the hydraulic cylinder 1 through a mounting frame. The output end of the blow pipe 605 is inclined and the output end of the blow pipe 605 is arranged toward one end of the wiring harness.

[0031] See also Figure 3 As shown, the middle of the above-mentioned blowing pipe 605 is fixedly connected with a heating pipe 606, and the heating pipe 606 is arranged horizontally. A baffle 604 is fixedly installed on the inner wall of the shielding cover 5, and the position of the baffle 604 corresponds to the position of the output end of the heating pipe 606.

[0032] See also Figure 3 As shown, a flip plate 601 is rotatably provided on the inner wall of the above-mentioned shielding cover 5, and the top of the lifting platform 609 is movably connected to one end of the flip plate 601 through a first lever 610, and the middle part of the flip plate 601 away from the first lever 610 is elastically connected to the baffle 604 through a tension spring 603.

[0033] See also Figure 3 and Figure 4As shown, the extended end of the hydraulic cylinder 1 is slidably connected to the other end of the flip plate 601 through the second lever 602, and the flip plate 601 is located above the second lever 602; by controlling the extended end of the hydraulic cylinder 1 to shrink to the shortest, during this process, the third lever drives the flip plate 601 to rotate, and the lifting platform 609 moves downward, and the output end of the blowing pipe 605 passes through the two connecting frames 807 and is tightly attached to the sealing plug 802. At this time, the output end of the heating pipe 606 slides down to correspond to the position of the wire harness cutting end, so that the hot air flow will be blown out from the output end of the heating pipe 606. Since the distance between the output end of the heating pipe 606 and the wire harness cutting end is close, the hot air flow melts the burrs on the cutting end of the wire harness insulation layer, thereby avoiding the quality decline of subsequent assembly and welding of the automotive wire harness.

[0034] See also Figure 2-Figure 4 As shown, a hot air blower 10 is fixedly installed on the inner wall of the above-mentioned shielding cover 5, and the input end of the hot air blower 10 is fixedly connected to an air inlet pipe 9, and the input end of the air inlet pipe 9 passes through the shielding cover 5. The output end of the hot air blower 10 is fixedly connected to a hose 608, and the output end of the hose 608 is connected to the top of the blowing pipe 605.

[0035] See also Figure 2 and Figure 5 As shown, the above-mentioned tensioning mechanism 8 includes a cylinder 4 fixedly inserted on the side wall of the shielding cover 5, the cylinder 4 is arranged horizontally, and the protruding end of the cylinder 4 is fixedly installed with a clamping tool 803 for fixing the end of the wire harness, the clamping tool 803 is the existing technology, and the bottom of the clamping tool 803 is rollingly connected to the bottom plate 3 through a plurality of rollers.

[0036] See also Figure 5 and Figure 6 As shown, a pin shaft 808 is fixedly installed on the inner wall of the above-mentioned shielding cover 5, and two L-shaped plates 806 are rotatably provided in the middle of the pin shaft 808. One end of the two L-shaped plates 806 is fixedly connected to a connecting frame 807, and one end of the two connecting frames 807 is commonly fixedly connected to a positioning plate 801.

[0037] See also Figure 5 and Figure 6As shown, the protruding end of the cylinder 4 is also fixedly installed with a fixing plate 805, and the top of the fixing plate 805 is fixedly installed with a third lever, and the ends of the two L-shaped plates 806 away from the connecting frame 807 are provided with L-shaped grooves 804, and the two ends of the third lever are respectively movably connected with the two L-shaped grooves 804; by controlling the protruding end of the cylinder 4 to shrink from the longest to the set length, the two ends of the third lever slide from one end of the two L-shaped grooves 804 to the middle thereof, driving the two connecting frames 807 to rotate, and the middle part of the wiring harness is fixed by the positioning plate 801 in cooperation with the support platform 2, and the hot air blower 10 is turned on, and the hot air flow blown out is injected into the hose 608 along the hose 608 In the blow pipe 605, since the baffle 604 blocks the output end of the heating tube 606, the hot air flow in the blow pipe 605 will be blown out from its output end, and the blown out hot air flow mixes with the outside air to continuously heat the wire harness to soften the wire harness, and then continues to control the extended end of the cylinder 4 to shrink to the shortest, and the two ends of the third lever slide from the middle of the two L-shaped grooves 804 to the other end thereof. During this process, the position of the positioning plate 801 does not change, which makes it easy to tighten and straighten the wire harness through the clamping tool 803 to prevent the cut end of the wire harness from tilting, so that the contact area between the wire core and the terminal is sufficient to avoid affecting the quality of subsequent crimping.

[0038] See also Figure 2 , Figure 3 and Figure 5 As shown, a sealing plug 802 arranged obliquely is fixedly installed on the bottom plate 3 below the above-mentioned clamping tool 803 , and the position of the sealing plug 802 corresponds to the position of the output end of the blowing pipe 605 .

[0039] Working principle: When the present invention is used, first, Figure 2 and Figure 5 As shown, one end of the wire harness is fixed by the clamping fixture 803, and the extended end of the cylinder 4 is controlled to shrink from the longest to the set length, so that the two ends of the third lever slide from one end of the two L-shaped grooves 804 to the middle thereof, driving the two connecting frames 807 to rotate, and the middle of the wire harness is fixed by the positioning plate 801 in cooperation with the support platform 2, as shown in FIG. Figure 2 , Figure 3 and Figure 5 As shown, the hot air blower 10 is turned on, so that the hot air flow blown out is injected into the blowing pipe 605 along the hose 608. Since the baffle 604 blocks the output end of the heating pipe 606, the hot air flow in the blowing pipe 605 will be blown out from its output end, and the hot air flow blown out is mixed with the outside air to continuously heat the wire harness, so that the wire harness is softened, as shown in FIG. Figure 5 and Figure 6As shown, the extended end of the cylinder 4 is controlled to be retracted to the shortest, and the two ends of the third lever slide from the middle of the two L-shaped grooves 804 to the other end thereof. During this process, the position of the positioning plate 801 does not change, so that the wire harness is tightened and straightened by the clamping tool 803 to prevent the cut end of the wire harness from tilting, so that the contact area between the wire core and the terminal is sufficient to avoid affecting the quality of subsequent crimping; as shown in FIG. Figure 3 As shown, the extended end of the hydraulic cylinder 1 is controlled to extend from half the length to the longest, so that the cutter 7 cuts the wire harness. After the wire harness is cut, the extended end of the hydraulic cylinder 1 is controlled to shrink to the shortest. In this process, Figure 3 and Figure 6 As shown, the flip plate 601 is driven to rotate by the third lever, and the lifting platform 609 is driven to move downward, so that the output end of the blowing pipe 605 passes through between the two connecting frames 807 and is close to the sealing plug 802. At this time, the output end of the heating pipe 606 slides down to correspond to the position of the wire harness cutting end, so that the hot air flow in the blowing pipe 605 will be blown out from the output end of the heating pipe 606. Since the distance between the output end of the heating pipe 606 and the wire harness cutting end is relatively close, the hot air flow melts the burrs on the cutting end of the wire harness insulation layer, thereby avoiding the quality decline of subsequent assembly and welding of the automotive wire harness.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A wire harness cutting device for automobile wire harness production, comprising a base plate (3) and a shielding cover (5) fixedly mounted on the top thereof, characterized in that: A hydraulic cylinder (1) is fixedly inserted on the top of the shielding cover (5); a cutter (7) for cutting the wire harness is fixedly installed on the protruding end of the hydraulic cylinder (1); a heating mechanism (6) for removing burrs at the cut end of the wire harness is arranged on one side of the cutter (7); a support platform (2) is also fixedly arranged on the top of the bottom plate (3); a tensioning mechanism (8) for straightening the wire harness is arranged on one side of the support platform (2); The heating mechanism (6) comprises a lifting platform (609) slidably connected to the inner wall of the shielding cover (5); a blowing pipe (605) is fixedly connected to the side of the lifting platform (609) close to the hydraulic cylinder (1); the output end of the blowing pipe (605) is arranged at an angle, and the output end of the blowing pipe (605) is arranged toward one end of the wiring harness.

2. A wire harness cutting device for automobile wire harness production according to claim 1, characterized in that: The middle of the blowing pipe (605) is fixedly connected to a heating pipe (606), and a baffle (604) is fixedly installed on the inner wall of the shielding cover (5), and the position of the baffle (604) corresponds to the position of the output end of the heating pipe (606).

3. A wire harness cutting device for automobile wire harness production according to claim 1, characterized in that: A flip plate (601) is rotatably arranged on the inner wall of the shielding cover (5); the top of the lifting platform (609) is movably connected to one end of the flip plate (601) via a first lever (610); and the middle part of the flip plate (601) away from the first lever (610) is elastically connected to the baffle (604) via a tension spring (603).

4. A wire harness cutting device for automobile wire harness production according to claim 1, characterized in that: The extended end of the hydraulic cylinder (1) is slidably connected to the other end of the flip plate (601) via a second shifting rod (602), and the flip plate (601) is located above the second shifting rod (602).

5. The wire harness cutting device for automobile wire harness production according to claim 1, characterized in that: A hot air blower (10) is fixedly mounted on the inner wall of the shielding cover (5); the input end of the hot air blower (10) is fixedly connected to an air inlet pipe (9); the input end of the air inlet pipe (9) passes through the shielding cover (5); the output end of the hot air blower (10) is fixedly connected to a hose (608); the output end of the hose (608) is connected to the top of the blowing pipe (605).

6. A wire harness cutting device for automobile wire harness production according to claim 1, characterized in that: The tightening mechanism (8) comprises a cylinder (4) fixedly inserted on the side wall of the shielding cover (5), the protruding end of the cylinder (4) is fixedly mounted with a clamping tool (803) for fixing the end of the wire harness, and the bottom of the clamping tool (803) is rollingly connected to the bottom plate (3) via a plurality of rollers.

7. A wire harness cutting device for automobile wire harness production according to claim 6, characterized in that: A pin shaft (808) is fixedly mounted on the inner wall of the shielding cover (5), and two L-shaped plates (806) are rotatably arranged in the middle of the pin shaft (808), one end of each of the two L-shaped plates (806) is fixedly connected to a connecting frame (807), and one end of each of the two connecting frames (807) is commonly fixedly connected to a positioning plate (801).

8. A wire harness cutting device for automobile wire harness production according to claim 6, characterized in that: A fixing plate (805) is fixedly mounted on the protruding end of the cylinder (4), a third lever is fixedly mounted on the top of the fixing plate (805), and L-shaped grooves (804) are formed at the ends of the two L-shaped plates (806) away from the connecting frame (807), and two ends of the third lever are movably connected to the two L-shaped grooves (804) respectively.

9. A wire harness cutting device for automobile wire harness production according to claim 6, characterized in that: A sealing plug (802) arranged obliquely is fixedly mounted on the bottom plate (3) below the clamping tool (803), and the position of the sealing plug (802) corresponds to the position of the output end of the blowing pipe (605).

Images