Wire harness cut-off device and cut-off method

Abstract

The invention discloses a wire harness cut-off device and cut-off method.The wire harness cut-off device comprises conveying ring strips which are symmetrically distributed and can synchronously rotate, a plurality of clamping plates which are connected and evenly distributed are arranged between the conveying ring strips, and a plurality of containing grooves used for containing wire harnesses are formed in the clamping plates; a rotatable pressing plate used for clamping the wire harness is arranged on the side wall of the containing groove, a cut-off plate capable of moving back and forth is arranged above the conveying ring strip, a cutting knife capable of moving up and down is arranged at the bottom of the cut-off plate, and the cutting knife is used for cutting off the wire harness on the cut-off plate synchronously moving below. By means of the dynamic cutting mode, the cutting efficiency can be effectively improved, meanwhile, due to the fact that the pressing plate can rotate, wire harnesses can be clamped during cutting, the pressing plate can rotate when discharging is needed, the wire harnesses can automatically fall off, and automatic discharging after wire harness cutting is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wire harness production and processing, and particularly relates to a wire harness truncating device and a truncating method. Background Art

[0002] During the use of wire harnesses, it is necessary to truncate long-distance wire harnesses into line segments of specific lengths according to the installation positions and connection requirements of different devices to achieve precise wiring and connection. At the same time, with the continuous development of production technology, the requirements for the precision, efficiency, and quality of wire harness truncation are also getting higher and higher. Most of the existing wire harness truncations adopt the method of roller feeding and then truncating. However, for some materials due to elasticity and high precision requirements, and when roller feeding cannot be used, a clamping and cutting machine is used. This machine uses clamping plates to clamp and fix the end of the wire harness, and then pulls the wire harness to a set length and controls the cutting knife to truncate the wire harness.

[0003] The inventor found that in this truncation method, after each truncation of the wire harness, since it takes a certain amount of time for the clamping plate to move to the cutting knife again, when the cutting knife cuts again, it needs to wait, resulting in a decrease in the cutting frequency and a decrease in the wire harness truncation efficiency.

[0004] Therefore, in view of the existing structure and deficiencies, research and improvement are carried out to provide a wire harness truncating device and a truncating method, with the expectation of achieving a more practical purpose. Summary of the Invention

[0005] Aiming at at least one problem in the prior art, an object of the present invention is to provide a wire harness truncating device and a truncating method.

[0006] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0007] A wire harness truncating device includes symmetrically distributed and synchronously rotatable conveying ring strips. A plurality of connected and uniformly distributed clamping plates are arranged between the conveying ring strips. The clamping plates are provided with a plurality of placement grooves for placing wire harnesses. The side walls of the placement grooves are provided with rotatable pressing plates for clamping the wire harnesses. Above the conveying ring strips, there is a truncating plate that can move back and forth. The bottom of the truncating plate is provided with a cutting knife that can move up and down. The cutting knife is used to truncate the wire harness on the truncating plate moving synchronously below.

[0008] Preferably, it further includes symmetrically distributed and fixedly connected mounting plates. Two rotatable conveying wheels are arranged on each mounting plate. The conveying wheels are used to drive the corresponding conveying ring strips to rotate, and a synchronous shaft is connected between the conveying wheels. A first motor for driving the conveying wheels to rotate is arranged on the mounting plate.

[0009] Preferably, a pressing groove is provided on the clamping plate. At the inlet of the pressing groove, a first pressing rod is slidably connected, and a first pressing telescopic mechanism is provided in the pressing groove. The pressing end of the first pressing telescopic mechanism is connected to the first pressing rod. A driving groove communicating with the pressing groove is further provided in the clamping plate. A driving plate is slidably and sealingly connected in the driving groove. A transmission rod is provided at the telescopic end of the first pressing telescopic mechanism, and the transmission rod is fixedly connected to the driving plate. A clamping groove is provided on the side wall of the placement groove, and the pressing plate is rotatably connected in the clamping groove. A first hydraulic rod for rotating the pressing plate to clamp the wire harness is connected in the clamping groove. The output end of the driving groove is provided with a first diversion groove, and the extending ends of the first diversion groove are respectively communicated with the liquid inlet ends of the corresponding first hydraulic rods. The pressing end is hemispherical, and fixing plates for squeezing and contracting the end of the first pressing rod are provided at both the upper and lower ends of the conveying ring strip.

[0010] Preferably, a first plate and a second plate are fixedly connected above the conveying ring strip. A conveying rod is rotatably provided between the first plate and the second plate. A conveying hole for the conveying rod to pass through is provided on the cutting plate. A conveying thread is provided on the conveying rod. Two semicircular conveying arc plates that can move back and forth are provided in the conveying hole. Thread grooves matching the conveying thread are provided on the inner walls of the conveying arc plates. A return spring for driving the cutting plate to automatically return to the initial position is provided on the first plate.

[0011] Preferably, second hydraulic rods are symmetrically distributed on the inner wall of the conveying hole. The end parts of the second hydraulic rods are respectively connected to the conveying arc plates. A synchronous groove is provided in the cutting plate. A synchronous plate is slidably and sealingly connected in the synchronous groove. The synchronous plate is arranged to be able to move up and down in the synchronous groove. A second diversion groove communicating with each other is provided between the liquid inlet ends of the second hydraulic rods. A communication groove communicating with each other is provided between the synchronous groove and the second diversion groove.

[0012] Preferably, a second pressing telescopic mechanism is fixedly connected in the synchronous groove. The telescopic end of the second pressing telescopic mechanism is connected to the synchronous plate. A second pressing rod is connected to the pressing end of the second pressing telescopic mechanism. A bendable connecting piece is provided on the second pressing rod. The extending end of the connecting piece is movably and sealingly connected through the synchronous groove and connected to the cutting knife. A return groove is provided on one side of the cutting plate. A return rod is slidably and sealingly connected in the return groove. During the process of the return rod returning to the initial position, it is squeezed by the first plate. A top groove communicating with the synchronous groove is provided at the end of the return groove. A top rod is slidably and sealingly connected in the top groove. The top rod is used for squeezing the second pressing rod.

[0013] Preferably, a stripping mechanism for adjusting the position back and forth and used for stripping the end of the wire harness is provided on one side of the cutting plate. The stripping mechanism includes a positioning plate, a stripping rod, a first stripping knife and a second stripping knife. A third hydraulic rod for driving the positioning plate to adjust the position back and forth is provided on the cutting plate. The stripping rod is rotatably connected to the positioning plate, and the stripping rod can move back and forth along the rotation direction of the conveying loop. Both the first stripping knife and the second stripping knife are semi-circular. The first stripping knife is fixedly installed on the stripping rod. A hidden groove is provided on one side of the stripping rod. The second stripping knife is rotatably connected in the hidden groove. A fourth hydraulic rod for driving the second stripping knife to rotate to the first stripping knife is provided in the hidden groove.

[0014] Preferably, the stripping rod is arranged on one side of the placement groove. The first stripping knife is located above the wire harness after being fixed. The cutting depths of the first stripping knife and the second stripping knife correspond to the thickness of the skin of the wire harness to be stripped.

[0015] Preferably, a fifth hydraulic rod for driving the cutting knife to move up and down is provided at the bottom of the cutting plate.

[0016] A cutting method for a wire harness cutting device, using the above-mentioned wire harness cutting device, includes the following steps:

[0017] S1 Place the ends of multiple wire harnesses in the placement groove respectively, then control the pressing plate in the placement groove to press and fix the wire harnesses, and then start the rotation of the conveying loop, and drive the wire harnesses to move through the clamping plate;

[0018] S2 When pulled to the set length, the second clamping plate automatically moves below the wire harness. At this time, continue to control the pressing plate in the clamping plate to press and fix the wire harness; before the third clamping plate moves below the wire harness, control the cutting plate to move so that when the second clamping plate moves to the cutting plate, the cutting plate synchronizes with the second clamping plate, and then control the cutting knife below the cutting plate to cut the wire harness. After cutting, control the cutting plate to quickly return to the initial position and wait to synchronize with the third clamping plate;

[0019] S3 When the tail of the cut wire harness completely moves below the conveying loop, control the pressing plate on the first clamping plate to release the pressing and fixing of the wire harness. The wire harness automatically falls below the conveying loop due to gravity, realizing automatic discharging, while the second clamping plate continues to pull the wire harness to move, keeping the wire harness in a moving state all the time;

[0020] S4 Then repeat the above steps S2 and S3, and clamp the wire harness in a cyclic manner through the clamping plate, so that the wire harness can be automatically cut and discharged in sequence while maintaining a moving state.

[0021] Compared with the prior art, the present invention has the following technical effects:

[0022] The rotation of the conveying link enables the clamping plate to contact the wire harness in a cyclic manner. Through the rotation of the pressing plate, the selective fixing of the wire harness is achieved. Meanwhile, in cooperation with the reciprocating movement of the cutting plate, the reciprocating movement of the cutting plate enables the cutting knife to keep the cutting plate and the clamping plate relatively stationary by controlling them to move at the same speed during cutting. Thus, when the wire harness is being cut, it always remains in a moving state, changing the original method of stopping the conveying every time a cut is made. This dynamic cutting method can effectively improve the cutting efficiency. At the same time, the rotatable pressing plate enables the clamping of the wire harness during cutting. When the pressing plate rotates during discharging, the wire harness can automatically fall off, realizing the automatic discharging of the wire harness after cutting.

[0023] With the design of the first pressing telescopic mechanism, the hemispherical end of the first pressing rod, and the fixed plate, when the clamping plate moves to the upper fixed plate, the transmission rod automatically extends due to the extrusion of the first pressing rod by the fixed plate, thereby squeezing the driving plate. Through hydraulic transmission, multiple first hydraulic rods can be driven to automatically extend, enabling the pressing plate to automatically clamp the wire harness. When the clamped clamping plate moves to the lower fixed plate, by squeezing the first pressing rod again, the driving plate can be restored to its initial position, and thus through hydraulic transmission, the pressing plate automatically returns to its initial position, releasing the fixation of the wire harness. Since the clamping plate moves cyclically, in this way, every time the clamping plate passes through the lower fixed plate and then moves to the upper fixed plate again, it can control the pressing plate to automatically clamp the wire harness, thus realizing the selective clamping and fixing as well as releasing of the wire harness.

[0024] With the design of the conveying thread, the movement of the cutting plate can be realized by means of thread conveying. The reciprocating opening and closing movement of the conveying arc plate and the cooperation of the return spring enable the cutting plate to automatically disconnect the connection between the conveying thread and the conveying arc plate by separating the conveying arc plates after cutting. In this way, the elasticity of the return spring can automatically drive the cutting plate to quickly return to its initial position, which can restore the initial position more efficiently compared to the method of rotating the conveying rod for conveying. This enables the cutting plate to better cut the wire harness on the next clamping plate and can also adapt to the cutting of shorter wire harnesses. During the process of the cutting plate returning to its initial position, by controlling the length of the return spring, it is always kept in a compressed state before the conveying arc plate contacts the end of the conveying thread. In this way, through the extrusion of the return spring, when the conveying rod is rotating, the conveying arc plates can be better and faster connected to the conveying thread after closing.

[0025] Referring to the following description and the accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0026] Features described and / or illustrated for one embodiment can be used in the same or similar way in one or more other embodiments, combined with features in other embodiments, or instead of features in other embodiments.

[0027] It should be emphasized that the term "comprising" as used herein refers to the presence of features, whole units, steps or components, but does not exclude the presence or addition of one or more other features, whole units, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 Schematic three-dimensional structure diagram provided for the present invention.

[0030] Figure 2 Schematic three-dimensional connection structure diagram of the clamping plate, cutting plate and peeling rod provided for the present invention.

[0031] Figure 3 Schematic cross-sectional connection structure diagram of the drive plate and the pressure plate provided for the present invention.

[0032] Figure 4 Schematic three-dimensional connection structure diagram of the cutting plate and the peeling rod provided for the present invention.

[0033] Figure 5 Schematic cross-sectional connection structure diagram of the cutting plate provided for the present invention.

[0034] Figure 6 Schematic three-dimensional connection structure diagram of the reset rod and the cutting plate provided for the present invention.

[0035] Description of reference numerals in the figure: 1. mounting plate; 11. positioning ring groove; 12. fixing plate; 2. conveying ring strip; 21. conveying wheel; 22. synchronizing shaft; 23. first motor; 3. cutting-off plate; 31. cutting knife; 32. conveying hole; 321. conveying arc plate; 322. second hydraulic rod; 323. second diversion groove; 33. fifth hydraulic rod; 34. reset rod; 35. synchronizing groove; 351. second pressing and telescoping mechanism; 352. second pressing rod; 353. ejector rod; 354. synchronizing plate; 355. reset groove; 356. communicating groove; 357. connecting piece; 4. first plate; 41. reset spring; 42. second motor; 43. conveying rod; 44. second plate; 45. conveying thread; 5. clamping plate; 51. first pressing rod; 52. cutting groove; 53. positioning rod; 54. first pressing and telescoping mechanism; 55. driving plate; 56. driving groove; 56. first diversion groove; 58. placing groove; 581. clamping groove; 582. first hydraulic rod; 583. pressing plate; 6. positioning plate; 61. peeling rod; 62. third hydraulic rod; 63. second peeling knife; 64. first peeling knife; 65. hidden groove. Detailed implementation mode

[0036] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be another intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be another intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific implementation manners and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] Example 1, please refer to Figure 1 、 Figure 2 and Figure 3, A wire harness cutting device, including conveying ring strips 2 that are symmetrically distributed and can rotate synchronously. Between the conveying ring strips 2, there are a plurality of connected and evenly distributed clamping plates 5. On the clamping plates 5, there are a plurality of placement grooves 58 for placing wire harnesses. On the side walls of the placement grooves 58, there are rotatable pressing plates 583 for clamping the wire harnesses. Above the conveying ring strips 2, there is a cutting plate 3 that can move back and forth. At the bottom of the cutting plate 3, there is a cutting knife 31 that can move up and down. The cutting knife 31 is used for cutting the wire harness on the cutting plate 3 that moves synchronously below.

[0040] The rotation of the conveying ring strips 2 enables the clamping plates 5 to contact the wire harness in a cyclic manner. Through the rotation of the pressing plates 583, selective fixation of the wire harness is achieved. At the same time, in cooperation with the reciprocating movement of the cutting plate 3, the reciprocating movement of the cutting plate 3 enables the cutting knife 31 to keep the cutting plate 3 and the clamping plate 5 relatively stationary by controlling the same movement speed during cutting, so that the wire harness always remains in a moving state during cutting, changing the original way of stopping the conveying every time a cut is made. This dynamic cutting method can effectively improve the cutting efficiency. At the same time, the rotatability of the pressing plates 583 realizes the clamping of the wire harness during cutting. When discharging is required, the rotation of the pressing plates 583 enables the wire harness to automatically fall, realizing automatic discharging after the wire harness is cut.

[0041] In this embodiment, please refer to Figure 1 , Figure 2 , It also includes symmetrically distributed and fixedly connected mounting plates 1. On the mounting plates 1, there are two rotatable conveying wheels 21. The conveying wheels 21 are used to drive the corresponding conveying ring strips 2 to rotate. And between the conveying wheels 21, there is a connected synchronizing shaft 22. On the mounting plates 1, there is a first motor 23 for driving the conveying wheels 21 to rotate. The conveying wheels 21 are used to drive the conveying ring strips 2 to rotate in a tensioned state.

[0042] In this embodiment, please refer to Figure 2 , Figure 3, a pressing groove is provided on the clamping plate 5. A first pressing rod 51 is slidably connected at the inlet of the pressing groove, and a first pressing telescopic mechanism 54 is provided in the pressing groove. The pressing end of the first pressing telescopic mechanism 54 is connected to the first pressing rod 51. A driving groove 56 communicating with the pressing groove is further provided in the clamping plate 5. A driving plate 55 is slidably and sealingly connected in the driving groove 56. A transmission rod is provided at the telescopic end of the first pressing telescopic mechanism 54, and the transmission rod is fixedly connected to the driving plate 55. A clamping groove 581 is provided on the side wall of the placement groove 58. The pressing plate 583 is rotatably connected in the clamping groove 581. A first hydraulic rod 582 connected and used for rotating the pressing plate 583 to clamp the wire harness is provided in the clamping groove 581. The output end of the driving groove 56 is provided with a first diversion groove 56, and the extending ends of the first diversion groove 56 are respectively communicated with the liquid inlet ends of the corresponding first hydraulic rods 582. The pressing end is hemispherical. Fixed plates 12 for squeezing and contracting the end of the first pressing rod 51 are provided at both the upper and lower ends of the conveying ring strip 2. The fixed plates 12 are fixedly installed on the mounting plate 1.

[0043] With the designs of the first pressing telescopic mechanism 54, the hemispherical shape of the end of the first pressing rod 51, and the fixed plate 12, when the clamping plate 5 moves to the upper fixed plate 12, through the squeezing of the first pressing rod 51 by the fixed plate 12, the transmission rod automatically extends, thereby squeezing the driving plate 55. Through the transmission of hydraulic pressure, it can drive multiple first hydraulic rods 582 to automatically extend, so that the pressing plate 583 automatically clamps the wire harness. When the clamped clamping plate 5 moves to the lower fixed plate 12, through the re-squeezing of the first pressing rod 51, the driving plate 55 can be restored to its initial position, and thus through the transmission of hydraulic pressure, the pressing plate 583 automatically returns to its initial position, thereby releasing the fixation of the wire harness; since the clamping plate 5 moves in a cycle, in this way, every time the clamping plate 5 passes through the lower fixed plate 12 and then moves to the upper fixed plate 12 again, it can control the pressing plate 583 to automatically clamp the wire harness, thus realizing the selective clamping and fixing as well as loosening of the wire harness.

[0044] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 , Figure 5, above the conveying ring strip 2, there are fixedly connected first plate 4 and second plate 44. Between the first plate 4 and the second plate 44, there is a rotatable conveying rod 43. On the cutting plate 3, there is a conveying hole 32 for the conveying rod 43 to pass through. On the conveying rod 43, there is a conveying thread 45. Inside the conveying hole 32, there are two semi-circular conveying arc plates 321 that can move back and forth. On the inner wall of the conveying arc plate 321, there is a thread groove that is matched and connected with the conveying thread 45. On the first plate 4, there is a return spring 41 for driving the cutting plate 3 to automatically return to its initial position. Among them, on the first plate 4, there is a second motor 42 for driving the conveying rod 43 to rotate. Among them, the cutting plate 3 is slidably connected between the mounting plates 1. The design of the sliding connection can effectively prevent the rotation of the cutting plate 3, enabling the conveying rod 43 to drive the cutting plate 3 to move.

[0045] The design of the conveying thread 45 can achieve the movement of the cutting plate 3 by means of screw conveying. The back-and-forth opening and closing movement of the conveying arc plate 321 and the cooperation of the return spring 41 can enable the cutting plate 3 to automatically release the connection between the conveying thread 45 and the conveying arc plate 321 after cutting by the way of the separation of the conveying arc plates 321. In this way, the elasticity of the return spring 41 can automatically drive the cutting plate 3 to quickly return to its initial position. Compared with the way of rotating and conveying by the conveying rod 43, it can return to the initial position more efficiently. In this way, the cutting plate 3 can better cut the wire harness on the next clamping plate 5 and can also adapt to the cutting of shorter wire harnesses. During the process of the cutting plate 3 returning to its initial position, control the length of the return spring 41 to always keep it in a compressed state before the conveying arc plate 321 contacts the end of the conveying thread 45. In this way, through the extrusion of the return spring 41, when the conveying rod 43 is rotating, the conveying arc plate 321 can be better and faster connected with the conveying thread 45 after closing each other.

[0046] In this embodiment, please refer to Figure 5 , on the inner wall of the conveying hole 32, there are symmetrically distributed second hydraulic rods 322. The end parts of the second hydraulic rods 322 are respectively connected to the conveying arc plates 321. Inside the cutting plate 3, there is a synchronous groove 35. Inside the synchronous groove 35, there is a synchronizing plate 354 that is slidably and sealingly connected. The synchronizing plate 354 is arranged to be able to move up and down in the synchronous groove 35. Between the liquid inlet ends of the second hydraulic rods 322, there is a second diversion groove 323 that is connected. Between the synchronous groove 35 and the second diversion groove 323, there is a communication groove 356.

[0047] In this embodiment, please refer to Figure 5 、 Figure 6, a second pressing and telescoping mechanism 351 is fixedly connected in the synchronization groove 35. The telescoping end of the second pressing and telescoping mechanism 351 is connected to the synchronization plate 354. A connected second pressing rod 352 is provided at the pressing end of the second pressing and telescoping mechanism 351. A bendable connecting member 357 is provided on the second pressing rod 352. The extending end of the connecting member 357 movably and sealingly passes through the synchronization groove 35 and is connected to the cutting knife 31. A reset groove 355 is provided on one side of the truncation plate 3. A reset rod 34 is slidably and sealingly connected in the reset groove 355. During the process of the reset rod 34 returning to its initial position, it is squeezed by the first plate 4. A top groove communicating with the synchronization groove 35 is provided at the end of the reset groove 355. A top rod 353 is slidably and sealingly connected in the top groove. The top rod 353 is used to squeeze the second pressing rod 352.

[0048] The design of the connecting member 357 and the second pressing and telescoping mechanism 351 enables the cutting knife 31, when the cutting is completed, through the transmission of the connecting member 357, to pull the second pressing rod 352 to squeeze the pressing end of the second pressing and telescoping mechanism 351, so that the telescoping end drives the synchronization plate 354 to move upward. Through the transmission of hydraulic pressure, the second hydraulic rod 322 automatically contracts. In this way, after the cutting knife 31 finishes cutting, the second hydraulic rod 322 can automatically contract, enabling the conveying arc plate 321 to automatically separate. And the design of the reset rod 34 enables the truncation plate 3, when returning to its initial position, through the extrusion of the first plate 4, to move the reset rod 34. Through the transmission of hydraulic pressure, it drives the top rod 353 to move, so as to press the second pressing rod 352 again through the top rod 353, making the synchronization plate 354 automatically return downward to its initial position. At this time, through the transmission of hydraulic pressure, it drives a plurality of second hydraulic rods 322 to synchronously and automatically extend, enabling the conveying arc plate 321 to automatically close; realizing the selective opening and closing of the conveying arc plate 321.

[0049] In this embodiment, both the first pressing and telescoping mechanism 54 and the second pressing and telescoping mechanism 351 adopt the pressing and telescoping mechanism in the existing ballpoint pen field. This is prior art, so this application does not describe it in detail.

[0050] In this embodiment, please refer to Figure 2 and Figure 3 , positioning ring grooves 11 are provided on the side walls of the mounting plate 1. Positioning rods 53 slidably connected to the positioning ring grooves 11 are provided at both ends of the clamping plate 5. The addition of the positioning ring grooves 11 and the positioning rods 53 enables the cutting knife 31 to effectively support the clamping plate 5 when cutting the clamping plate 5, ensuring the stability of the cutting.

[0051] In this embodiment, please refer to Figure 2 , Figure 4 and Figure 6, on one side of the truncation plate 3, there is a peeling mechanism that can adjust its position back and forth and is used for peeling the end of the wire harness. The peeling mechanism includes a positioning plate 6, a peeling rod 61, a first peeling knife 64, and a second peeling knife 63. On the truncation plate 3, there is a third hydraulic rod 62 for driving the positioning plate 6 to adjust its position back and forth. The peeling rod 61 is rotatably connected to the positioning plate 6, and the peeling rod 61 can move back and forth along the rotation direction of the conveying loop bar 2. Both the first peeling knife 64 and the second peeling knife 63 are semi-circular. The first peeling knife 64 is fixedly installed on the peeling rod 61. There is a hidden groove 65 on one side of the peeling rod 61. The second peeling knife 63 is rotatably connected in the hidden groove 65. In the hidden groove 65, there is a fourth hydraulic rod for driving the second peeling knife 63 to rotate to the first peeling knife 64. Among them, the fourth hydraulic rod drives the second peeling knife 63 to rotate and close, which belongs to the prior art, and its principle can be referred to Figure 3 in which the first hydraulic rod 582 controls the rotation of the pressing plate 583. Therefore, in the drawings of this application, there is not too much description.

[0052] The design of the first peeling knife 64 and the second peeling knife 63 enables the wire harness to be automatically circumcised at the end while being cut. When the fourth hydraulic rod extends, the second peeling knife 63 and the first peeling knife 64 close. Coupled with the rotational design of the peeling rod 61, when the truncation plate 3 moves back, after the peeling rod 61 contacts the clamping plate 5, it will automatically rotate without affecting the normal movement of the clamping plate 5. After the wire harness is cut off, the first peeling knife 64 and the second peeling knife 63 also synchronously complete the circumcision. At this time, as the truncation plate 3 moves back while the wire harness still moves forward, the first peeling knife 64 and the second peeling knife 63 can automatically pull and separate the circumcised wire harness skin, realizing the automatic peeling of one end of the wire harness; and the design of the third hydraulic rod 62 can control the peeling length of one end of the wire harness by the telescopic movement of the third hydraulic rod 62, and different lengths of peeling can be realized according to different requirements.

[0053] In this embodiment, the cutting heads of the first peeling knife 64 and the second peeling knife 63 adopt the cutting heads in the existing wire harness crimping pliers. For different cutting depths, different cutting heads are replaced; this is the prior art, so there is not too much description in the comparison of this application.

[0054] In this embodiment, the peeling rod 61 is arranged on one side of the placement groove 58. The first peeling knife 64 is located above the fixed wire harness. The cutting depths of the blades of the first peeling knife 64 and the second peeling knife 63 correspond to the thickness of the wire harness skin to be peeled. Such a design can enable the first peeling knife 64 and the second peeling knife 63 to better peel the wire harness without affecting the wire harness.

[0055] In this embodiment, a fifth hydraulic rod 33 for driving the cutting knife 31 to move up and down is provided at the bottom of the cutting plate 3.

[0056] In this embodiment, a cutting groove 52 for the cutting knife 31 to cut is provided on the clamping plate 5. The cutting groove 52 crosses the placement groove 58, and the cutting groove 52 is located at one end of the pressing plate 583, so that after the wire harness is cut, the cut wire harness can move along with the previous clamping plate 5.

[0057] When this application is in use:

[0058] (1) Place the end parts of multiple wire harnesses in the placement groove 58 of the first clamping plate 5 respectively, and then control the first motor 23 to drive the conveying loop 2 to move, so that the first clamping plate 5 passes through the fixed plate 12 above the conveying loop 2. At this time, the fixed plate 12 can automatically press the upper end of the second pressing rod 352. Through the first pressing and telescoping mechanism 54, the driving plate 55 moves automatically, and then through the hydraulic transmission, a plurality of first hydraulic rods 582 automatically extend, so that the first hydraulic rods 582 automatically press and fix the wire harness. Then continue to control the rotation of the conveying loop 2, and drive the wire harness to move through the clamping plate 5;

[0059] (2) When it is pulled to the set length, the second clamping plate 5 automatically moves to the lower part of the wire harness. At this time, when the second clamping plate 5 continues to move to the fixed plate 12 above, the fixed plate 12 presses the second pressing rod 352 on the second clamping plate 5, so that the pressing plate 583 in the clamping plate 5 presses and fixes the wire harness; when the second clamping plate 5 moves to the lower part of the cutting plate 3, start the second motor 42 and control the rotation speed of the conveying rod 43, so that the cutting plate 3 and the lower clamping plate 5 move synchronously. First, according to the length requirement of wire stripping at the wire speed, the third hydraulic rod 62 moves to the set length. During the movement of the wire harness, the wire harness is located below the first wire stripping knife 64, close but not in contact. Then control the fifth hydraulic rod 33 below the cutting plate 3 to extend to cut the wire harness with the cutting knife 31. At the same time, control the fourth hydraulic rod to drive the second wire stripping knife 63 to rotate, so that the second wire stripping knife 63 and the first wire stripping knife 64 are closed to cut the wire harness in a circular shape;

[0060] (3) After the wire harness is cut (i.e., when the fifth hydraulic rod 33 extends to its maximum length), at this time, the cutting knife 31 can pull the second pressing rod 352 through the connecting piece 357 to complete the pressing. It can drive the synchronous plate 354 to move through the second pressing and telescoping mechanism 351. Through the hydraulic transmission, the second hydraulic rod 322 synchronously contracts, causing the two conveying arc plates 321 to automatically separate from each other. At this time, the connection between the conveying arc plate 321 and the conveying thread 45 is released. Under the action of the return spring 41, the truncating plate 3 can automatically and quickly pull the truncating plate 3 back to its initial position. And at this time, since the first peeling knife 64 and the second peeling knife 63 are in a closed state, the circumferentially cut wire harness skin can be automatically pulled and separated through the closing of the first peeling knife 64 and the second peeling knife 63, realizing the automatic peeling of the wire harness. The peeling rod 61 is rotatably connected to the positioning plate 6. When the truncating plate 3 moves back, when the peeling rod 61 contacts the clamping plate 5, it can automatically rotate without affecting each other. And when there is no collision, the peeling rod 61 can automatically maintain a vertical state due to gravity;

[0061] (4) Before the third clamping plate 5 moves below the wire harness, make the truncating plate 3 quickly return to its initial position and wait to move synchronously with the third clamping plate 5. At this time, the reset rod 34 can contact and collide with the first plate 4, and the first plate 4 can squeeze the reset rod 34. Through the hydraulic linkage, the ejector rod 353 is driven to automatically squeeze the second pressing rod 352, so that the second pressing and telescoping mechanism 351 can be pressed again, controlling the synchronous plate 354 to return to its initial position. At this time, through the hydraulic transmission, multiple second hydraulic rods 322 can be driven to synchronously extend. At this time, the second hydraulic rods 322 can squeeze the conveying arc plates 321 into a circular ring shape. Coupled with the elasticity of the return spring 41, the conveying arc plates 321 can always be squeezed towards the conveying thread 45. In this way, as the conveying rod 43 rotates, the connection between the conveying arc plate 321 and the conveying thread 45 can be quickly established, enabling the conveying rod 43 to quickly realize the re-conveying of the truncating plate 3;

[0062] (5) When the tail of the cut wire harness completely moves below the conveying ring strip 2, at this time, the first pressing rod 51 on the first clamping plate 5 moves to the lower fixed plate 12. The fixed plate 12 automatically squeezes the first pressing rod 51 on the first clamping plate 5. Through the first pressing and telescoping mechanism 54, the pressing plate 583 automatically rotates and opens, releasing the extrusion and fixation of the wire harness. The wire harness automatically falls below the conveying ring strip 2 due to gravity, realizing automatic discharging. And the second clamping plate 5 continues to pull the wire harness to move, keeping the wire harness in a moving state all the time;

[0063] (6) Then repeat the above steps 2, 3, 4, and 5. The clamping plate 5 clamps the wire harness in a reciprocating manner, and at the same time, the cutting plate 3 reciprocates to cooperate. When the wire harness is in a moving state, it can be automatically cut and discharged.

[0064] A cutting method for a wire harness cutting device, using the above-mentioned wire harness cutting device, includes the following steps:

[0065] S1 Place the ends of multiple wire harnesses in the placement groove 58 respectively, and then control the pressing plate 583 in the placement groove 58 to squeeze and fix the wire harness. Then start the rotation of the conveying loop 2, and drive the wire harness to move through the clamping plate 5;

[0066] S2 When it is pulled to the set length, the second clamping plate 5 automatically moves below the wire harness. At this time, continue to control the pressing plate 583 in this clamping plate 5 to squeeze and fix the wire harness; before the third clamping plate 5 moves below the wire harness, control the movement of the cutting plate 3 so that when the second clamping plate 5 moves to the cutting plate 3, the cutting plate 3 synchronizes with the second clamping plate 5. Then control the cutting knife 31 below the cutting plate 3 to cut the wire harness. After cutting, control the cutting plate 3 to quickly return to the initial position and wait to synchronize with the third clamping plate 5;

[0067] S3 When the tail of the cut wire harness completely moves below the conveying loop 2, control the pressing plate 583 on the first clamping plate 5 to release the extrusion and fixation of the wire harness. The wire harness automatically falls below the conveying loop 2 due to gravity to achieve automatic discharging, while the second clamping plate 5 continues to pull the wire harness to move, keeping the wire harness in a moving state all the time;

[0068] S4 Then repeat the above steps S2 and S3. The clamping plate 5 clamps the wire harness in a reciprocating manner, so that the wire harness can be automatically cut and discharged in sequence while in a moving state.

[0069] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of" describing a combination should include the identified elements, components, parts or steps, as well as other elements, components, parts or steps that do not substantially affect the basic novel features of the combination. Using the terms "comprising" or "including" to describe the combination of elements, components, parts or steps herein also contemplates embodiments consisting essentially of these elements, components, parts or steps. By using the term "may" herein, it is intended that any attribute described as "may" included is optional.

[0070] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step may be separated into discrete multiple elements, components, parts, or steps. The disclosure of "a" or "an" used to describe an element, component, part, or step does not preclude the presence of other elements, components, parts, or steps.

[0071] It should be understood that the above description is illustrative and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present application should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents to which those claims are entitled. For the sake of completeness, all articles and references, including patent applications and published patents, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the foregoing claims is not a waiver of that subject matter, nor should it be assumed that the inventor did not consider that subject matter to be part of the disclosed inventive subject matter.

Claims

1. A wire harness cutting device, characterized in that: It includes a conveying ring strip that is symmetrically distributed and can rotate synchronously. There are multiple connected and evenly distributed clamping plates between the conveying ring strips. The clamping plates are provided with multiple placement grooves for placing wire harnesses. The side wall of the placement groove is provided with a rotatable pressing plate for clamping the wire harness. Above the conveying ring strip, there is a cutting plate that can move back and forth. The bottom of the cutting plate is provided with a cutting knife that can move up and down. The cutting knife is used for cutting the wire harness on the cutting plate that moves synchronously below.

2. The wire harness truncation device according to claim 1, characterized in that: It also includes symmetrically distributed and fixedly connected mounting plates. Each mounting plate is provided with two rotatable conveying wheels. The conveying wheels are used to drive the corresponding conveying ring strip to rotate. A synchronous shaft is connected between the conveying wheels. The mounting plate is provided with a first motor for driving the conveying wheels to rotate.

3. The wire harness truncation device according to claim 1, characterized in that: The clamping plate is provided with a pressing groove. At the inlet of the pressing groove, there is a first pressing rod connected in a sliding manner. And in the pressing groove, there is a first pressing telescopic mechanism. The pressing end of the first pressing telescopic mechanism is connected to the first pressing rod. Inside the clamping plate, there is also a driving groove communicating with the pressing groove. In the driving groove, there is a driving plate connected in a sliding and sealed manner. The telescopic end of the first pressing telescopic mechanism is provided with a transmission rod, and the transmission rod is fixedly connected to the driving plate. The side wall of the placement groove is provided with a clamping groove, and the pressing plate is rotatably connected in the clamping groove. In the clamping groove, there is a connected first hydraulic rod for rotating the pressing plate to clamp the wire harness. The output end of the driving groove is provided with a first diversion groove, and the extending ends of the first diversion groove are respectively communicated with the liquid inlet ends of the corresponding first hydraulic rods. The pressing end is hemispherical. Both the upper and lower ends of the conveying ring strip are provided with fixing plates for squeezing and contracting the end of the first pressing rod.

4. The wire harness truncating device according to claim 1, wherein: Above the conveying ring strip, there are fixedly connected a first plate and a second plate. Between the first plate and the second plate, there is a rotatable conveying rod. The cutting plate is provided with a conveying hole for the conveying rod to pass through. The conveying rod is provided with conveying threads. Inside the conveying hole, there are two semi-circular conveying arc plates that can move back and forth and open and close. The inner wall of the conveying arc plate is provided with a thread groove that is matched and connected with the conveying threads. The first plate is provided with a return spring for driving the cutting plate to automatically return to its initial position.

5. The wire harness cutting device according to claim 4, wherein: The inner wall of the conveying hole is provided with symmetrically distributed second hydraulic rods. The end parts of the second hydraulic rods are respectively connected to the conveying arc plates. Inside the cutting plate, there is a synchronous groove. In the synchronous groove, there is a synchronous plate connected in a sliding and sealed manner. The synchronous plate is arranged in the synchronous groove so as to be able to move up and down. A second diversion groove is communicated between the liquid inlet ends of the second hydraulic rods. A communication groove is provided between the synchronous groove and the second diversion groove.

6. The wire harness cutting device according to claim 5, wherein: A second pressing and telescoping mechanism is fixedly connected inside the synchronization groove. The telescoping end of the second pressing and telescoping mechanism is connected to the synchronization plate. A second pressing rod is connected to the pressing end of the second pressing and telescoping mechanism. A bendable connecting member is provided on the second pressing rod. The extending end of the connecting member movably and sealingly passes through the synchronization groove and is connected to the cutting knife. A reset groove is provided on one side of the truncation plate. A reset rod is slidably and sealingly connected inside the reset groove. During the process of the reset rod returning to its initial position, it is squeezed by the first plate. A top groove communicating with the synchronization groove is provided at the end of the reset groove. A top rod is slidably and sealingly connected inside the top groove. The top rod is used to squeeze the second pressing rod.

7. The wire harness truncating device according to claim 1, wherein: A peeling mechanism for adjusting the position back and forth and used for peeling the ends of the wire harnesses is provided on one side of the truncation plate. The peeling mechanism includes a positioning plate, a peeling rod, a first peeling knife, and a second peeling knife. A third hydraulic rod for driving the positioning plate to adjust the position back and forth is provided on the truncation plate. The peeling rod is rotatably connected to the positioning plate, and the peeling rod can move back and forth along the rotation direction of the conveying loop. Both the first peeling knife and the second peeling knife are semi-circular. The first peeling knife is fixedly installed on the peeling rod. A hidden groove is provided on one side of the peeling rod. The second peeling knife is rotatably connected inside the hidden groove. A fourth hydraulic rod for driving the second peeling knife to rotate to the position of the first peeling knife is provided inside the hidden groove.

8. The wire harness cutting device according to claim 7, wherein: The peeling rod is arranged on one side of the placement groove. The first peeling knife is located above the wire harness after being fixed. The cutting depths of the first peeling knife and the second peeling knife correspond to the thickness of the epidermis of the wire harness to be peeled.

9. The wire harness truncating device according to claim 1, characterized in that: A fifth hydraulic rod for driving the cutting knife to move up and down is provided at the bottom of the truncation plate.

10. A cutting method for a wire harness cutting device, using the wire harness cutting device described in any one of the above claims 1-9, characterized in that, Including the following steps: S1 Place the ends of multiple wire harnesses in the placement groove respectively, then control the pressing plate in the placement groove to squeeze and fix the wire harnesses, and then start the conveying loop to rotate, driving the wire harnesses to move through the clamping plate; S2 When pulled to the set length, the second clamping plate automatically moves below the wire harness. At this time, continue to control the pressing plate in this clamping plate to squeeze and fix the wire harness; before the third clamping plate moves below the wire harness, control the truncation plate to move. When the second clamping plate moves to the truncation plate, the truncation plate synchronizes with the second clamping plate. Then control the cutting knife below the truncation plate to cut the wire harness. After cutting, control the truncation plate to quickly return to its initial position and wait to synchronize with the third clamping plate; S3 When the tail of the truncated wire harness completely moves below the conveying loop, control the pressing plate on the first clamping plate to release the squeezing and fixing of the wire harness. The wire harness automatically falls below the conveying loop due to gravity, realizing automatic discharging. And the second clamping plate continues to pull the wire harness to move, keeping the wire harness in a moving state all the time; S4 Then repeat the above steps S2 and S3. The wire harnesses are clamped by the clamping plate in a cyclic manner, enabling the wire harnesses to be automatically truncated and discharged in sequence while keeping in a moving state.

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