Automatic wire harness clipping machine and using method

Abstract

The invention provides an automatic wire harness clipping machine and a using method. The automatic wire harness clipping machine comprises a rack structure, the whole rack structure is of a rectangular frame structure, vertically-arranged guide rods are symmetrically arranged in the rectangular frame structure, a sliding frame structure is installed on the guide rods in a sliding mode, and a lifting adjusting mechanism is installed between the top of the sliding frame structure and the rectangular frame structure; a floating pressing mechanism is fixedly installed at the bottom end of the sliding frame structure, a bottom supporting and conveying mechanism is arranged under the floating pressing mechanism in a matched mode, and a wire harness guiding structure is arranged between the floating pressing mechanism and the bottom supporting and conveying mechanism. A wire harness auxiliary traction mechanism is arranged at the tail of the floating pressing mechanism, and a cutting mechanism is arranged on the other side of the wire harness auxiliary traction mechanism. A synchronous belt driving mechanism is arranged on the back of the floating pressing mechanism and the back of the bottom supporting and conveying mechanism. The cutting machine can be used for automatically cutting the wire harness, can automatically cut the wire harness into the required length according to the length requirement, and can also well adapt to the wire harnesses with different diameter sizes.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness processing, and in particular to an automatic wire harness cutting machine and a use method thereof. Background Art

[0002] In the process of weak-current wiring in the computer room, many different types of wire harnesses are needed, including signal cables, network cables and wires. In the specific wiring process, the wire harnesses need to be cut into different lengths according to the wiring needs of different locations. Usually, there may be tens of thousands of wire harnesses in a weak-current room. At present, the commonly used cutting method is mainly manual cutting. The disadvantage of manual cutting is that the work efficiency is relatively low and the labor intensity of the operators is high. In the cutting process, for wire harnesses that need to be fixed in length, the cutting length cannot be well controlled.

[0003] Although a wire harness cutting device is disclosed in CN 217647377 U, which can realize fixed-length cutting of wire harnesses by adjusting the positioning, the fixed-length adjustment distance is limited, which leads to a limited length of fixed-length cutting. It cannot adapt well to the needs of cutting large lengths.

[0004] In addition, since the thickness of different wire harnesses varies, if an automatic cutting machine is used for cutting, the influence of the thickness of the wire harness needs to be considered. Summary of the invention

[0005] The present invention provides an automatic wire harness cutting machine and a method for using the same. The cutting machine can be used for automatically cutting wire harnesses, and can automatically cut wire harnesses into required lengths according to length requirements. It can also well adapt to wire harnesses of different diameters, and thus can well adapt to the wiring requirements of a computer room.

[0006] In order to realize the above-mentioned technical features, the purpose of the present invention is realized as follows: an automatic wire harness cutting machine comprises a frame structure, the frame structure is a rectangular frame structure as a whole, the interior of the rectangular frame structure is symmetrically arranged with vertically arranged guide rods, a slide structure is slidably installed on the guide rods, a lifting and adjusting mechanism is installed between the top of the slide structure and the rectangular frame structure, a floating clamping mechanism for floatingly clamping and conveying the wire harness is fixedly installed at the bottom end of the slide structure, a bottom supporting and conveying mechanism is arranged directly below the floating clamping mechanism, and an intermittently arranged wire harness guiding structure is arranged between the floating clamping mechanism and the bottom supporting and conveying mechanism; a wire harness auxiliary traction mechanism is arranged at the tail of the floating clamping mechanism, and a cutting mechanism for cutting the wire harness is arranged on the other side of the wire harness auxiliary traction mechanism; a synchronous belt driving mechanism is arranged on the back of the floating clamping mechanism and the bottom supporting and conveying mechanism.

[0007] The frame structure comprises a bottom plate, symmetrically arranged side plates are fixed on both sides of the top of the bottom plate, a top plate is fixed on the top of the side plates, and the whole structure forms a rectangular frame structure; the guide rod is vertically fixed between the bottom plate and the top plate.

[0008] The slide structure comprises an upper slide plate sleeved on the guide rod, a lower slide plate is fixedly mounted on the bottom end of the upper slide plate through a sliding sleeve, the sliding sleeve is slidably sleeved on the outside of the guide rod, and a long screw is fixed between the upper slide plate and the lower slide plate.

[0009] The lifting and lowering adjustment mechanism includes a screw seat fixed in the middle of the top of the rectangular frame structure, a screw is rotatably installed inside the screw seat, a hand wheel is fixed at the top of the screw, a handle is fixed at the top of the hand wheel, and the bottom end of the screw forms a threaded transmission fit with the top of the slide structure.

[0010] The floating clamping mechanism includes a vertical plate, on the outer wall of which a first large pulley and a second large pulley are rotatably mounted, an upper synchronous belt is cooperatively mounted on the outside of the first large pulley and the second large pulley, an upper tensioning wheel is arranged on the inner upper side of the upper synchronous belt, and multiple sets of lower clamping wheels are arranged on the inner lower side of the upper synchronous belt.

[0011] The structure of the bottom support conveying mechanism is the same as that of the floating clamping mechanism, and the two are arranged in reverse symmetry and are used for clamping and conveying the wire harness; the bottom support conveying mechanism is fixed to the inner top of the rectangular frame structure; The wire harness guiding structure comprises a first fixed block located at the wire inlet end of the floating clamping mechanism, a first wire reel is fixed on the first fixed block, and an intermediate wire reel is arranged at the wire outlet end of the floating clamping mechanism; It also includes a first wire feeder and a second wire feeder arranged on both sides of the cutting mechanism, and the second wire feeder is fixed on the frame structure through a second fixing block.

[0012] The wire harness auxiliary traction mechanism includes a first traction wheel seat fixed on the outer wall of the vertical plate, a first wheel axle is rotatably mounted on the first traction wheel seat, a first traction wheel is mounted on the first wheel axle, a second traction wheel is arranged directly below the first traction wheel, and the second traction wheel is rotatably mounted on the side wall of the bottom supporting conveying mechanism through the second wheel axle; the first wheel axle is connected to the output shaft of the traction motor, and the traction motor is fixed on the back outer wall of the vertical plate.

[0013] The cutting mechanism comprises a cylinder fixing plate fixed on the outer wall of the frame structure, a cylinder is fixedly mounted on the cylinder fixing plate, a lifting and sliding plate is fixedly mounted on the end of the piston rod of the cylinder through a connecting plate, a knife seat is fixed on the outer wall of the lifting and sliding plate, a movable blade is fixed at the bottom end of the knife seat, the movable blade cooperates with the fixed blade, and the fixed blade is fixed to the frame structure through a lower knife seat; A travel switch is fixedly mounted on the outer wall of the cylinder via a first sensor fixing seat, the travel switch cooperates with a travel sensing block, and the travel sensing block is fixed on the outer wall of the lifting and sliding plate.

[0014] The synchronous belt drive mechanism includes a driving motor, which is fixed to the frame structure through a motor vertical plate, an active synchronous belt pulley is installed on the output shaft of the driving motor, a first upper synchronous belt pulley and a second upper synchronous belt pulley are symmetrically installed on the back outer wall of the vertical plate, a first lower synchronous belt pulley and a second lower synchronous belt pulley are symmetrically installed on the back outer wall of the bottom supporting conveying mechanism, and a steering synchronous belt pulley is arranged on the back outer wall of the vertical plate and below the second upper synchronous belt pulley; The driving synchronous pulley, the second lower synchronous pulley, the first upper synchronous pulley, the second upper synchronous pulley, the steering synchronous pulley and the first lower synchronous pulley are equipped with a driving belt; The first upper synchronous pulley is coaxially arranged with the second large pulley of the floating clamping mechanism; The second upper synchronous pulley is coaxially arranged with the first large pulley of the floating clamping mechanism.

[0015] A method for using an automatic wire harness cutting machine comprises the following steps: Step 1: Lift and lower adjustment of the floating clamping mechanism: The lifting adjustment mechanism is manually adjusted according to the thickness of the wire harness to be cut, and the lifting adjustment mechanism drives the slide structure, and the slide structure drives the floating clamping mechanism to achieve lifting adjustment to adapt to the clamping of wire harnesses of different thicknesses; Step 2, select the drive belt of the corresponding size and model: According to the height of the floating clamping mechanism, select the drive belt of corresponding size and model, and install the drive belt; Step 3: Fixed-length delivery of wire harnesses: The wire harness to be cut is passed through the wire harness guide structure, and then the wire harness is passed between the wire harness guide structure and the bottom support conveying mechanism, and the synchronous belt driving mechanism is started, and the wire harness guide structure and the bottom support conveying mechanism are driven by the synchronous belt driving mechanism, so as to compress the wire harness, and the wire harness is conveyed to the cutting mechanism during the compressing process, and the conveying length is controlled; Step 4, cutting of the wire harness: After the wire harness is transported to the cutting mechanism, the cutting mechanism is started to cut the wire harness; Step 5, continued delivery of the wiring harness: After the last on-site wire harness is cut, repeat steps 3 and 4 until all wire harnesses are cut.

[0016] Beneficial effects of the present invention: 1. The cutting machine of the present invention can be used for automatic cutting of wire harnesses, and can automatically cut the wire harnesses into the required length according to the length requirements, and can also well adapt to wire harnesses of different diameters, and thus can well adapt to the wiring requirements of the computer room.

[0017] 2. The above frame structure can be used to support and install the entire shearing machine.

[0018] 3. The above-mentioned carriage structure facilitates the floating installation of the subsequent floating clamping mechanism, and then the height of the floating clamping mechanism can be adjusted to adapt to the clamping of wire harnesses of different thicknesses.

[0019] 4. The lifting and lowering adjustment mechanism can be used to adjust the lifting and lowering of the slide structure.

[0020] 5. The above-mentioned floating clamping mechanism can realize the clamping of the wire harness, and after the clamping, the wire harness can be transported.

[0021] 6. The bottom support conveying mechanism mentioned above can be used to cooperate with the floating clamping mechanism to realize the conveying drive of the wire harness.

[0022] 7. The above-mentioned wire harness guiding structure can guide the wire harness, thereby ensuring that the wire harness can smoothly pass through the bottom support conveying mechanism and the floating clamping mechanism.

[0023] 8. The auxiliary traction of the wire harness can be achieved through the above-mentioned wire harness auxiliary traction mechanism.

[0024] 9. The cutting mechanism mentioned above can be used to cut the wire harness.

[0025] 10. The travel switch and the travel sensing block mentioned above can be used in combination to realize the travel control of the lifting and sliding plate.

[0026] 11. The synchronous belt drive mechanism can be used to provide power for wire harness transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 This is a three-dimensional diagram from the first perspective of the present invention.

[0029] Figure 2 This is a three-dimensional diagram from a second viewing angle of the present invention.

[0030] Figure 3 It is a three-dimensional diagram from the third viewing angle of the present invention.

[0031] Figure 4 This is a three-dimensional diagram from the fourth viewing angle of the present invention.

[0032] Figure 5 This is a three-dimensional diagram from the fifth viewing angle of the present invention.

[0033] Figure 6 It is the front view of the present invention.

[0034] Figure 7 It is a rear view of the present invention.

[0035] Figure 8 It is a side view of the present invention.

[0036] In the figure: frame structure 1, lifting and lowering adjustment mechanism 2, carriage structure 3, cutting mechanism 4, floating pressing mechanism 5, wire harness guiding structure 6, bottom supporting conveying mechanism 7, wire harness auxiliary traction mechanism 8, synchronous belt driving mechanism 9; Top plate 101, guide rod 102, side plate 103, bottom plate 104; Handle 201, hand wheel 202, screw seat 203, screw 204; Cylinder fixing plate 401, cylinder 402, lifting sliding plate 403, knife seat 404, movable blade 405, fixed blade 406, lower knife seat 407, travel sensing block 408, travel switch 409, first sensor fixing seat 410; Vertical plate 501, upper tensioning wheel 502, first large pulley 503, lower pressing wheel 504, second large pulley 505, upper synchronous belt 506; A first wire drum 601, a first fixing block 602, an intermediate wire drum 603, a first wire inlet drum 604, a second wire inlet drum 605, and a second fixing block 606; A first traction wheel seat 801, a first wheel axle 802, a first traction wheel 803, a second traction wheel 804, a second wheel axle 805, and a traction motor 806; Driving motor 901 , driving synchronous pulley 902 , motor vertical plate 903 , second upper synchronous pulley 904 , steering synchronous pulley 905 , first lower synchronous pulley 906 , driving belt 907 , first upper synchronous pulley 908 , second lower synchronous pulley 909 . DETAILED DESCRIPTION

[0037] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0038] Embodiment 1: like Figure 1-8As shown, an automatic wire harness cutting machine includes a frame structure 1, which is a rectangular frame structure as a whole. The interior of the rectangular frame structure is symmetrically arranged with vertically arranged guide rods 102, a slide structure 3 is slidably installed on the guide rod 102, a lifting and adjusting mechanism 2 is installed between the top of the slide structure 3 and the rectangular frame structure, a floating clamping mechanism 5 for floatingly clamping and conveying the wire harness is fixedly installed at the bottom end of the slide structure 3, a bottom supporting and conveying mechanism 7 is arranged directly below the floating clamping mechanism 5, and an intermittently arranged wire harness guiding structure 6 is arranged between the floating clamping mechanism 5 and the bottom supporting and conveying mechanism 7; a wire harness auxiliary traction mechanism 8 is arranged at the tail of the floating clamping mechanism 5, and a cutting mechanism 4 for cutting the wire harness is arranged on the other side of the wire harness auxiliary traction mechanism 8; a synchronous belt driving mechanism 9 is arranged on the back of the floating clamping mechanism 5 and the bottom supporting and conveying mechanism 7. The cutting machine of the present invention can be used for automatic cutting of wire harnesses, and can automatically cut the wire harnesses into required lengths according to length requirements, and can also well adapt to wire harnesses of different diameters, and thus can well adapt to the wiring requirements of a machine room.

[0039] Furthermore, the frame structure 1 includes a bottom plate 104, symmetrically arranged side plates 103 are fixed on both sides of the top of the bottom plate 104, and a top plate 101 is fixed on the top of the side plates 103, and the whole forms a rectangular frame structure; the guide rod 102 is vertically fixed between the bottom plate 104 and the top plate 101. The frame structure 1 can be used to support and install the entire shearing machine. Moreover, the frame structure 1 facilitates the subsequent movement of the entire shearing machine, thereby enhancing its convenience of use.

[0040] Furthermore, the carriage structure 3 includes an upper slide plate 301 mounted on the guide rod 102, a lower slide plate 304 is fixedly mounted on the bottom end of the upper slide plate 301 through a sliding sleeve 303, the sliding sleeve 303 is slidably mounted on the outside of the guide rod 102, and a long screw 302 is fixed between the upper slide plate 301 and the lower slide plate 304. The above-mentioned carriage structure 3 facilitates the floating installation of the subsequent floating clamping mechanism 5, and then the height of the floating clamping mechanism 5 is adjusted, so that it can adapt to the clamping of wire harnesses of different thicknesses.

[0041] Furthermore, the lifting and adjusting mechanism 2 includes a screw seat 203 fixed at the middle part of the top of the rectangular frame structure, a screw 204 is rotatably installed inside the screw seat 203, a hand wheel 202 is fixed at the top of the screw 204, a handle 201 is fixed at the top of the hand wheel 202, and the bottom of the screw 204 forms a threaded transmission match with the top of the slide structure 3. The lifting and adjusting mechanism 2 can be used to lift and adjust the slide structure 3. During operation, the hand wheel 202 is manually rotated to drive the screw 204, and the screw 204 drives the slide structure 3 to achieve lifting and adjusting.

[0042] Furthermore, the floating clamping mechanism 5 includes a vertical plate 501, on the outer wall of which a first large pulley 503 and a second large pulley 505 are rotatably mounted, an upper synchronous belt 506 is mounted on the outside of the first large pulley 503 and the second large pulley 505, an upper tensioning wheel 502 is arranged on the inner upper side of the upper synchronous belt 506, and a plurality of lower clamping wheels 504 are arranged on the inner lower side of the upper synchronous belt 506. The above-mentioned floating clamping mechanism 5 can clamp the wire harness, and after clamping, the wire harness can be transported. In the specific working process, the corresponding first large pulley 503 and the second large pulley 505 are driven by the synchronous belt driving mechanism 9, and then the corresponding upper synchronous belt 506 is driven to rotate by the first large pulley 503 and the second large pulley 505, thereby driving the wire harness.

[0043] Furthermore, the structure of the bottom support conveying mechanism 7 is the same as that of the floating clamping mechanism 5, and the two are arranged in reverse symmetry and are used for clamping and conveying the wire harness; the bottom support conveying mechanism 7 is fixed to the top of the inner part of the rectangular frame structure. The bottom support conveying mechanism 7 can be used to cooperate with the floating clamping mechanism 5 to realize the conveying drive of the wire harness.

[0044] Furthermore, the wire harness guiding structure 6 includes a first fixed block 602 located at the wire inlet end of the floating clamping mechanism 5, a first wire drum 601 is fixed on the first fixed block 602, and an intermediate wire drum 603 is arranged at the wire outlet end of the floating clamping mechanism 5; it also includes a first wire inlet drum 604 and a second wire inlet drum 605 arranged on both sides of the cutting mechanism 4, and the second wire inlet drum 605 is fixed on the frame structure 1 through a second fixed block 606. The above-mentioned wire harness guiding structure 6 can realize the guidance of the wire harness, thereby ensuring that the wire harness can smoothly pass through the bottom support conveying mechanism 7 and the floating clamping mechanism 5.

[0045] Furthermore, the wire harness auxiliary traction mechanism 8 includes a first traction wheel seat 801 fixed on the outer wall of the vertical plate 501, a first wheel shaft 802 is rotatably mounted on the first traction wheel seat 801, a first traction wheel 803 is mounted on the first wheel shaft 802, a second traction wheel 804 is arranged directly below the first traction wheel 803, and the second traction wheel 804 is rotatably mounted on the side wall of the bottom support conveying mechanism 7 through the second wheel shaft 805; the first wheel shaft 802 is connected to the output shaft of the traction motor 806, and the traction motor 806 is fixed on the back outer wall of the vertical plate 501. The auxiliary traction of the wire harness can be achieved by the above-mentioned wire harness auxiliary traction mechanism 8. During operation, the first wheel shaft 802 is driven by the traction motor 806, and the first traction wheel 803 is driven by the first wheel shaft 802, and then the wire harness is compressed and conveyed by the first traction wheel 803.

[0046] Furthermore, the cutting mechanism 4 includes a cylinder fixing plate 401 fixed on the outer wall of the frame structure 1, a cylinder 402 is fixedly mounted on the cylinder fixing plate 401, a lifting and sliding plate 403 is fixedly mounted on the end of the piston rod of the cylinder 402 through a connecting plate 411, a knife holder 404 is fixed on the outer wall of the lifting and sliding plate 403, a movable blade 405 is fixed at the bottom end of the knife holder 404, the movable blade 405 cooperates with a fixed blade 406, and the fixed blade 406 is fixed on the frame structure 1 through a lower knife holder 407. The above-mentioned cutting mechanism 4 can achieve cutting of the wire harness. During operation, the lifting and sliding plate 403 is driven by the cylinder 402, the knife holder 404 is driven by the lifting and sliding plate 403, the movable blade 405 is driven by the knife holder, and the cutting operation is achieved by the movable blade 405 cooperating with the fixed blade 406.

[0047] Furthermore, a travel switch 409 is fixedly mounted on the outer wall of the cylinder 402 through a first sensor fixing seat 410, and the travel switch 409 cooperates with a travel sensing block 408, and the travel sensing block 408 is fixed on the outer wall of the lifting sliding plate 403. The travel switch 409 cooperates with the travel sensing block 408 to realize the travel control of the lifting sliding plate 403.

[0048] Furthermore, the synchronous belt drive mechanism 9 includes a drive motor 901, which is fixed to the frame structure 1 through a motor vertical plate 903. The output shaft of the drive motor 901 is equipped with an active synchronous pulley 902. The first upper synchronous pulley 908 and the second upper synchronous pulley 904 are symmetrically installed on the back outer wall of the vertical plate 501. The first lower synchronous pulley 906 and the second lower synchronous pulley 909 are symmetrically installed on the back outer wall of the bottom supporting conveying mechanism 7. A steering synchronous pulley 905 is arranged on the back outer wall of the vertical plate 501 and below the second upper synchronous pulley 904. The driving synchronous pulley 902, the second lower synchronous pulley 909, the first upper synchronous pulley 908, the second upper synchronous pulley 904, the steering synchronous pulley 905 and the first lower synchronous pulley 906 are equipped with a driving belt 907; the first upper synchronous pulley 908 is coaxially arranged with the second large pulley 505 of the floating clamping mechanism 5; the second upper synchronous pulley 904 is coaxially arranged with the first large pulley 503 of the floating clamping mechanism 5. The above-mentioned synchronous belt drive mechanism 9 can be used to provide power for wire harness transportation. During operation, the driving motor 901 drives the driving synchronous pulley 902, the driving belt 907 is driven by the driving synchronous pulley 902, and the corresponding driving synchronous pulley 902, the second lower synchronous pulley 909, the first upper synchronous pulley 908, the second upper synchronous pulley 904, the steering synchronous pulley 905 and the first lower synchronous pulley 906 are driven by the driving belt 907.

[0049] Embodiment 2: A method for using an automatic wire harness cutting machine comprises the following steps: Step 1: Lifting and lowering adjustment of the floating clamping mechanism 5: The lifting adjustment mechanism 2 is manually adjusted according to the thickness of the wire harness to be cut, and the lifting adjustment mechanism 2 drives the slide structure 3, and the slide structure 3 drives the floating clamping mechanism 5 to achieve lifting adjustment to adapt to the clamping of wire harnesses of different thicknesses; Step 2, select the drive belt 907 of the corresponding size: According to the height of the floating clamping mechanism 5, select the driving belt 907 of the corresponding size and type, and install the driving belt 907; Step 3: Fixed-length delivery of wire harnesses: The wire harness to be cut is passed through the wire harness guide structure 6, and then the wire harness is passed between the wire harness guide structure 6 and the bottom support conveying mechanism 7, and the synchronous belt driving mechanism 9 is started. The wire harness guide structure 6 and the bottom support conveying mechanism 7 are driven by the synchronous belt driving mechanism 9, and the wire harness is compressed. During the compression process, the wire harness is conveyed to the cutting mechanism 4, and the conveying length is controlled; Step 4, cutting of the wire harness: After the wire harness is delivered to the cutting mechanism 4, the cutting mechanism 4 is started to cut the wire harness through the cutting mechanism 4; Step 5, continued delivery of the wiring harness: After the last on-site wire harness is cut, repeat steps 3 and 4 until all wire harnesses are cut.

Claims

1. A wire harness automatic cutting machine, characterized in that: The invention comprises a frame structure (1), wherein the frame structure (1) is in the form of a rectangular frame structure as a whole, wherein guide rods (102) arranged vertically are symmetrically arranged inside the rectangular frame structure, a carriage structure (3) is slidably mounted on the guide rods (102), a lifting and lowering adjustment mechanism (2) is mounted between the top of the carriage structure (3) and the rectangular frame structure, a floating clamping mechanism (5) for floatingly clamping and conveying a wire harness is fixedly mounted at the bottom end of the carriage structure (3), a bottom supporting and conveying mechanism (7) is arranged directly below the floating clamping mechanism (5), and a discontinuously arranged wire harness guide structure (6) is arranged between the floating clamping mechanism (5) and the bottom supporting and conveying mechanism (7); a wire harness auxiliary traction mechanism (8) is arranged at the tail of the floating clamping mechanism (5), and a cutting mechanism (4) for cutting the wire harness is arranged on the other side of the wire harness auxiliary traction mechanism (8); and a synchronous belt driving mechanism (9) is arranged on the back of the floating clamping mechanism (5) and the bottom supporting and conveying mechanism (7).

2. The automatic wire harness cutting machine according to claim 1, characterized in that: The frame structure (1) comprises a bottom plate (104), symmetrically arranged side plates (103) are fixed on both sides of the top of the bottom plate (104), a top plate (101) is fixed on the top of the side plates (103), and the whole structure forms a rectangular frame structure; the guide rod (102) is vertically fixed between the bottom plate (104) and the top plate (101).

3. The automatic wire harness cutting machine according to claim 1, characterized in that: The slide structure (3) comprises an upper slide plate (301) sleeved on the guide rod (102); a lower slide plate (304) is fixedly mounted on the bottom end of the upper slide plate (301) via a sliding sleeve (303); the sliding sleeve (303) is slidably sleeved on the outside of the guide rod (102); and a long screw rod (302) is fixed between the upper slide plate (301) and the lower slide plate (304).

4. The automatic wire harness cutting machine according to claim 1, characterized in that: The lifting and lowering adjustment mechanism (2) comprises a screw seat (203) fixed to the middle part of the top of the rectangular frame structure, a screw (204) is rotatably mounted inside the screw seat (203), a hand wheel (202) is fixed to the top of the screw (204), a handle (201) is fixed to the top of the hand wheel (202), and the bottom end of the screw (204) forms a threaded transmission match with the top of the slide structure (3).

5. The automatic wire harness cutting machine according to claim 1, characterized in that: The floating clamping mechanism (5) comprises a vertical plate (501), on the outer wall of which a first large pulley (503) and a second large pulley (505) are rotatably mounted, an upper synchronous belt (506) is mounted on the outside of the first large pulley (503) and the second large pulley (505), an upper tensioning wheel (502) is arranged on the inner upper side of the upper synchronous belt (506), and a plurality of groups of lower clamping wheels (504) are arranged on the inner lower side of the upper synchronous belt (506).

6. The automatic wire harness cutting machine according to claim 5, characterized in that: The structure of the bottom support conveying mechanism (7) is the same as that of the floating clamping mechanism (5), and the two are arranged in reverse symmetry and are used for clamping and conveying the wire harness; the bottom support conveying mechanism (7) is fixed to the inner top of the rectangular frame structure; The wire harness guiding structure (6) comprises a first fixed block (602) located at the wire inlet end of the floating clamping mechanism (5), a first wire reel (601) being fixed on the first fixed block (602), and an intermediate wire reel (603) being arranged at the wire outlet end of the floating clamping mechanism (5); It also comprises a first wire feeder (604) and a second wire feeder (605) arranged on both sides of the cutting mechanism (4); the second wire feeder (605) is fixed to the frame structure (1) via a second fixing block (606).

7. The automatic wire harness cutting machine according to claim 5, characterized in that: The harness auxiliary traction mechanism (8) comprises a first traction wheel seat (801) fixed on the outer wall of the vertical plate (501); a first wheel shaft (802) is rotatably mounted on the first traction wheel seat (801); a first traction wheel (803) is mounted on the first wheel shaft (802); a second traction wheel (804) is arranged directly below the first traction wheel (803); the second traction wheel (804) is rotatably mounted on the side wall of the bottom support conveying mechanism (7) via a second wheel shaft (805); the first wheel shaft (802) is connected to the output shaft of a traction motor (806); and the traction motor (806) is fixed on the back outer wall of the vertical plate (501).

8. The automatic wire harness cutting machine according to claim 5, characterized in that: The cutting mechanism (4) comprises a cylinder fixing plate (401) fixed on the outer wall of the frame structure (1), a cylinder (402) fixedly mounted on the cylinder fixing plate (401), a lifting and sliding plate (403) fixedly mounted on the end of the piston rod of the cylinder (402) via a connecting plate (411), a knife seat (404) fixed on the outer wall of the lifting and sliding plate (403), a movable blade (405) fixed at the bottom end of the knife seat (404), the movable blade (405) cooperates with a fixed blade (406), and the fixed blade (406) is fixed to the frame structure (1) via a lower knife seat (407); A travel switch (409) is fixedly mounted on the outer wall of the cylinder (402) via a first sensor fixing seat (410); the travel switch (409) cooperates with a travel sensing block (408); and the travel sensing block (408) is fixed on the outer wall of the lifting and sliding plate (403).

9. The automatic wire harness cutting machine according to claim 5, characterized in that: The synchronous belt drive mechanism (9) comprises a drive motor (901), the drive motor (901) is fixed to the frame structure (1) via a motor vertical plate (903), an output shaft of the drive motor (901) is mounted with a driving synchronous belt pulley (902), a first upper synchronous belt pulley (908) and a second upper synchronous belt pulley (904) are symmetrically mounted on the back outer wall of the vertical plate (501), a first lower synchronous belt pulley (906) and a second lower synchronous belt pulley (909) are symmetrically mounted on the back outer wall of the bottom support conveying mechanism (7), and a steering synchronous belt pulley (905) is arranged on the back outer wall of the vertical plate (501) and below the second upper synchronous belt pulley (904); A driving belt (907) is mounted on the driving synchronous pulley (902), the second lower synchronous pulley (909), the first upper synchronous pulley (908), the second upper synchronous pulley (904), the steering synchronous pulley (905) and the first lower synchronous pulley (906); The first upper synchronous pulley (908) is coaxially arranged with the second large pulley (505) of the floating clamping mechanism (5); The second upper synchronous pulley (904) is coaxially arranged with the first large pulley (503) of the floating clamping mechanism (5).

10. A method for using the automatic wire harness cutting machine according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Lifting and lowering adjustment of the floating clamping mechanism (5): The lifting adjustment mechanism (2) is manually adjusted according to the thickness of the wire harness to be cut, the lifting adjustment mechanism (2) drives the slide structure (3), and the slide structure (3) drives the floating clamping mechanism (5) to achieve lifting adjustment to adapt to the clamping of wire harnesses of different thicknesses; Step 2, select the drive belt (907) of the corresponding size: According to the height of the floating clamping mechanism (5), a drive belt (907) of a corresponding size and model is selected, and the drive belt (907) is installed; Step 3: Fixed-length delivery of wire harnesses: Passing the wire harness to be cut through the wire harness guide structure (6), and then passing the wire harness between the wire harness guide structure (6) and the bottom support conveying mechanism (7), starting the synchronous belt drive mechanism (9), driving the wire harness guide structure (6) and the bottom support conveying mechanism (7) through the synchronous belt drive mechanism (9), and then pressing the wire harness, and in the process of pressing, conveying the wire harness to the cutting mechanism (4), and controlling the conveying length; Step 4, cutting of the wire harness: After the wire harness is transported to the cutting mechanism (4), the cutting mechanism (4) is started, and the wire harness is cut by the cutting mechanism (4); Step 5, continued delivery of the wiring harness: After the last on-site wire harness is cut, repeat steps 3 and 4 until all wire harnesses are cut.

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