Wire rod cutting device and process

Abstract

The invention discloses a wire cutting device which comprises a base table and a cutter arranged on the base table and used for cutting wires, and further comprises a guide block arranged on the base table and used for limiting the wires and a top cutting mechanism arranged on the base table and used for synchronously cutting multiple sets of wires with different lengths. A transverse frame plate freely moving in the horizontal transverse direction is arranged on the edge position arc-shaped seat, a rectangular groove allowing the transverse frame plate to slide in the horizontal transverse direction is formed in the edge position arc-shaped seat, a clamping assembly used for fixing a wire rod is arranged on the transverse frame plate, and a pressing and cutting assembly used for cutting the wire rod is arranged on the middle turning rod. Synchronous cutting of multiple sets of wire rods with different lengths is achieved, the wire harness machining efficiency is improved, the large-scale production requirement is met, when the length of the machining platform is limited, the cutting requirement of the long wire rods can be met, and then the applicability of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire cutting, and in particular to a wire cutting device and process. Background Art

[0002] In modern industrial production, wiring harnesses are widely used in various fields such as automobiles, electronic appliances, communication equipment, and medical treatment. Medical wiring harnesses play a vital role in medical equipment. Their main functions and uses include the following aspects: signal and data transmission, power transmission, connection and interface functions, and supporting the coordinated operation of complex medical equipment.

[0003] Chinese patent (publication number: CN117564191B), the scheme specifically includes: an unwinding device, the unwinding device is suitable for unwinding wire; a guiding device, the guiding device is arranged on one side of the unwinding device, the guiding device is suitable for guiding the wire unwound by the unwinding device; a clamping device, the clamping device is arranged on one side of the guiding device, the clamping device is suitable for clamping the wire guided by the guiding device; a shearing device, the shearing device is arranged on one side of the clamping device, the shearing device is suitable for shearing the wire clamped by the clamping device; it realizes the straightening of the wire during the unwinding process, and ensures the quality of the wire during the subsequent wire processing and shearing process.

[0004] During the cutting process of the wire processing equipment in the above patent, the cutting length is determined by the horizontal spacing between the shearing device and the clamping device. During the wire harness processing process, the wires in the wire harness are of different lengths, making it difficult to achieve a synchronous cutting process for wire harnesses of different lengths, and making it difficult to improve production efficiency. At the same time, when the required cutting length of the wire is large, the wire distance required to be pulled is long, that is, the processing platform needs to have sufficient effective length to meet the cutting requirements of longer wires. The processing platform length of existing equipment is limited, and it is difficult to cope with this situation. This limitation not only increases the complexity and cost of the equipment, but also limits its scope of application, making it difficult to meet the needs of multi-specification wire harness processing. Therefore, a wire cutting device and process are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a wire cutting device and process, which has the advantages of realizing synchronous cutting of multiple groups of wires of different lengths and improving applicability, and solves the problem that the processing platform needs to have sufficient effective length to meet the requirements of cutting longer wires.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a wire cutting device, comprising a base and a cutting knife arranged thereon for cutting the wire, and also comprising a guide block arranged on the base for limiting the wire, and a top cutting mechanism on the base for synchronously cutting a plurality of groups of wires of different lengths;

[0007] The top cutting mechanism comprises an edge arc seat fixedly connected to the base, a horizontal frame plate freely moving in the horizontal direction is arranged on the edge arc seat, a rectangular groove for the horizontal frame plate to slide horizontally is opened on the edge arc seat, and a clamping assembly for fixing the wire is arranged on the horizontal frame plate;

[0008] The base is fixedly connected with a triangular positioning seat, the triangular positioning seat is provided with a homonymous cylinder which can rotate freely in the horizontal direction, the homonymous cylinder is provided with a left turning rod, a middle turning rod and a right turning rod which can move freely in the vertical direction, and the middle turning rod is provided with a pressing and cutting assembly for cutting the wire;

[0009] The left turning rod, the middle turning rod and the right turning rod are all slidably penetrated on the triangular positioning seat, and the left turning rod is provided with a middle arch component for adjusting the length of the wire between the clamping component and the pressing and cutting component;

[0010] The base is provided with an intermodulation component which drives the horizontal frame plate to move horizontally and the isotropic cylinder to rotate horizontally in alternating operation.

[0011] Preferably, the clamping assembly comprises a push seat arranged on a transverse frame plate, a groove body for the push seat to slide horizontally and longitudinally is provided on the transverse frame plate, and a return spring is fixedly connected to one end of the push seat away from the edge arc seat, and one end of the return spring away from the push seat is fixedly connected to the transverse frame plate, and a movable clamping block and a fixed clamping block arranged opposite to each other are provided below the push seat, and the movable clamping block and the fixed clamping block are fixedly connected to the push seat and the transverse frame plate respectively;

[0012] A cam that rotates freely in the horizontal direction is fixedly rotated on the horizontal frame plate, and a ball stud that slides through the horizontal frame plate is provided on the side of the cam facing the push seat. The ball stud is fixedly connected to the push seat, and the outer peripheral surface of the cam is in sliding contact with the ball stud.

[0013] Preferably, the base is fixedly connected with a plurality of mounting seats, a transverse shaft which freely moves in the horizontal direction and freely rotates in the horizontal end is slidably penetrated through the mounting seat, a transverse rack is arranged below the transverse shaft, and a groove body 1 for the transverse rack to slide and connect in the horizontal direction is provided on the base;

[0014] A limit pin is fixedly connected to the transverse rack, a spiral limit groove for the limit pin to be slidably connected is provided on the transverse shaft, two groups of protrusions are fixedly connected to the end of the transverse shaft away from the spiral limit groove, and two groups of arc grooves for the protrusions to be slidably connected and a transverse blocking groove running through the two groups of arc grooves are provided on the side arc seat.

[0015] Preferably, a worm is fixedly sleeved on the transverse shaft, and the transverse shaft rotates on the transverse frame plate, both ends of the worm are in sliding contact with the inner wall of the transverse frame plate, and the worm is meshingly connected with a worm wheel, which rotates on the transverse frame plate and is coaxially fixed with the cam.

[0016] Preferably, the pressing and cutting assembly includes a plurality of side ear rods fixedly connected to the center turning rod, a central gear is rotated on the fixed axis on the side ear rod, and the central gear is meshingly connected with a left sliding rack and a right sliding rack arranged opposite to each other, a supporting bracket is fixedly connected to the base, and vertical sliding grooves for the left sliding rack and the right sliding rack to slide vertically are respectively provided on the supporting bracket, one end of the right sliding rack facing the base is fixedly connected to a pressure plate that is in contact with the wire, and one end of the left sliding rack facing the base is fixedly connected to the cutting knife.

[0017] Preferably, the left turning rod, the middle turning rod and the right turning rod are all fixedly connected with two groups of guide pins, the outer circumferential surface of the same position cylinder is fixedly connected with a first guide spiral plate, a second guide spiral plate and a third guide spiral plate, and the two groups of guide pins arranged on the left turning rod, the middle turning rod and the right turning rod are respectively located between the first guide spiral plate, the second guide spiral plate and the third guide spiral plate and are in one-to-one sliding contact;

[0018] One end of the right turning rod facing the base is fixedly connected with a leveling column.

[0019] Preferably, the middle arch assembly comprises a plurality of groups of extension rods arranged on the left turning rod, the plurality of groups of extension rods are all slidably sleeved on the left turning rod, and the plurality of groups of extension rods are all detachably connected to the left turning rod by bolts;

[0020] The plurality of groups of jacking rods are all located below the base in an initial state.

[0021] Preferably, the intermodulation assembly comprises a sector gear that rotates on a fixed axis on the base, and the sector gear is meshedly connected with a swing gear and a side gear, the side gear is coaxially fixed with the homonymous cylinder, and the swing gear rotates on a fixed axis on the base;

[0022] The side arc seat is fixedly connected with an inner cavity seat, and a reciprocating gear that can rotate freely in the vertical direction is provided on the side of the swing gear facing the inner cavity seat, and the reciprocating gear is meshedly connected with the transverse rack;

[0023] The lower surface of the sector gear is fixedly connected with a notch arc plate, and the swing gear and the side gear are both fixedly connected with an inner arc plate that is in sliding contact with the outer peripheral surface of the notch arc plate.

[0024] Preferably, an internal threaded barrel is fixedly rotated on the inner cavity seat, a screw is threadedly connected to the internal threaded barrel, and a rectangular block is fixedly connected to the screw, and a second slot body for horizontal and longitudinal sliding connection of the rectangular block is provided on the inner cavity seat, a connecting rod is fixedly rotated on the rectangular block, and one end of the connecting rod away from the rectangular block is fixedly rotated on the positioning gear;

[0025] The reciprocating gear is fixedly sleeved on the internal threaded cylinder.

[0026] Preferably, a wire cutting process, using a wire cutting device, comprises the following steps:

[0027] S1. Preparation: Place the rolled wire on the base, and lead one end of the wire through the guide block, so that the lead-out lengths of multiple groups of wires at the guide block are consistent, and adjust the initial height of the extension rod according to the cutting lengths set for different wires;

[0028] S2, lateral traction: the clamping assembly clamps and fixes the wire and moves horizontally away from the guide block to the terminal position;

[0029] S3, arch lifting and traction: the middle arch assembly drives the top extension rod to support and lift the middle part of the wire according to the set top extension rod height, so as to further pull the wire and change the effective traction length of the wire between the clamping assembly and the pressing and cutting assembly;

[0030] S4, pressing and cutting: The pressing and cutting component first clamps and fixes the wire near the guide block to ensure cutting accuracy, and then cuts the wire under the action of the cutter to complete a single cutting;

[0031] S5, reset operation: after a single wire cutting is completed, the middle arch component and the pressing and cutting component return to the initial position, driving the clamping component to reset and release the cut wire to realize the reset process during continuous wire cutting.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention realizes synchronous cutting of multiple groups of wires of different lengths by setting a top cutting mechanism, thereby improving the efficiency of wire harness processing and meeting the needs of large-scale production. When the length of the processing platform is limited, it can meet the cutting requirements of longer wires, thereby improving the applicability of the equipment.

[0034] 2. The present invention provides a pressing and cutting assembly, which can first compress the wire and then perform the cutting operation, thereby avoiding the deviation of the wire during the cutting process, thereby ensuring the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the components where the top extension rod of the present invention is located;

[0037] Figure 3 This is a schematic diagram of the components where the transverse axis of the present invention is located;

[0038] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0039] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0040] Figure 6 This is a schematic diagram of the components where the push seat of the present invention is located;

[0041] Figure 7 This is a schematic diagram of the components where the spiral limiting groove of the present invention is located;

[0042] Figure 8 This is a schematic diagram of the components where the positioning gear of the present invention is located;

[0043] Fig. 9 This is a schematic diagram of the components of the isotope cylinder of the present invention;

[0044] Fig.10 For the present invention Fig. 9 Enlarged view of point C in the middle;

[0045] Fig.11 This is a schematic diagram of the components where the support bracket of the present invention is located;

[0046] Fig.12 The present invention is a process flow chart of a wire cutting device.

[0047] In the figure: 1, base; 2, side arc seat; 3, transverse axis; 4, mounting seat; 5, transverse rack; 6, stop pin; 7, spiral stop groove; 8, convex block; 9, arc groove; 10, transverse stop groove; 11, worm; 12, worm wheel; 13, cam; 14, ball head column; 15, transverse frame plate; 16, push seat; 17, moving clamp block; 18, fixed clamp block; 19, reset spring; 20, reciprocating gear; 21, inner cavity seat; 22, internal thread cylinder; 23, screw; 24, rectangular block; 25, connecting rod; 26, swing gear; 27, fan shaped gear; 28, side gear; 29, notched arc plate; 30, inner arc plate; 31, isotropic cylinder; 32, triangular positioning seat; 33, left turning rod; 34, middle turning rod; 35, right turning rod; 36, No. 1 guide spiral plate; 37, No. 2 guide spiral plate; 38, No. 3 guide spiral plate; 39, top extension rod; 40, horizontal column; 41, side ear rod; 42, center gear; 43, left sliding rack; 44, right sliding rack; 45, support bracket; 46, cutting knife; 47, pressure plate; 48, guide block; 49, guide pin column. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figures 1 to 12 , the present invention provides a technical solution: a wire cutting device, comprising a base 1 and a cutter 46 for cutting wires arranged thereon, and also comprising a guide block 48 arranged on the base 1 for limiting the wires, and a top cutting mechanism for synchronously cutting a plurality of groups of wires of different lengths on the base 1;

[0050] The top cutting mechanism comprises an edge arc seat 2 fixedly connected to the base 1, a horizontal frame plate 15 freely moving in the horizontal direction is provided on the edge arc seat 2, a rectangular groove for the horizontal frame plate 15 to slide horizontally is provided on the edge arc seat 2, and a clamping assembly for fixing the wire is provided on the horizontal frame plate 15;

[0051] The base 1 is fixedly connected with a triangular positioning seat 32, on which a homonymous cylinder 31 which can rotate freely in the horizontal direction is provided, and on which a left turning rod 33, a middle turning rod 34 and a right turning rod 35 which can move freely in the vertical direction are provided, and on the middle turning rod 34 is provided a pressing and cutting assembly for cutting the wire;

[0052] The left turning rod 33, the middle turning rod 34 and the right turning rod 35 are all slidably penetrated on the triangular positioning seat 32, and the left turning rod 33 is provided with a middle arch component for adjusting the length of the wire between the clamping component and the pressing and cutting component;

[0053] The base 1 is provided with an intermodulation component for driving the horizontal frame plate 15 to move horizontally and the isotropic cylinder 31 to rotate horizontally in alternating operation.

[0054] like Figure 1 , Figure 2 and Fig. 9 As shown, when cutting the wire, the rolled wire is placed on the base 1, and one end of the wire is led out through the guide block 48, and the lead-out lengths of multiple groups of wires at the guide block 48 are made consistent. In the initial state, the transverse frame plate 15 is located on the side close to the guide block 48, and the wire is fixed by the clamping assembly provided on the transverse frame plate 15, and then the transverse frame plate 15 is driven to move away from the guide block 48 in the horizontal direction through the interlocking assembly, thereby pulling the wire until the transverse frame plate 15 is at the end position away from the guide block 48.

[0055] At the same time, driven by the interlocking assembly, the transverse frame plate 15 stops moving after reaching the terminal position. At this time, the isotropic cylinder 31 can rotate in the horizontal direction. The rotation process of the isotropic cylinder 31 can change the horizontal height of the left turning rod 33, the middle turning rod 34 and the right turning rod 35, thereby driving the middle arch assembly on the left turning rod 33 to operate. The middle arch assembly can support and lift the wire between the transverse frame plate 15 and the guide pin 49, and in the process of lifting the wire, the wire will be further pulled, thereby changing the effective pulling length of the wire between the clamping assembly and the pressing and cutting assembly.

[0056] Furthermore, in order to ensure the cutting accuracy of the wire, when cutting the wire, the wire near the guide block 48 can be clamped and fixed by the pressing and cutting assembly first, and then the wire is cut under the action of the cutter 46 to complete the purpose of single cutting of the wire.

[0057] At the same time, after a single cutting of the wire is completed, the middle arch component and the pressing and cutting component return to their initial positions, and subsequently drive the clamping component to reset and release the cut wire, and transfer the cut wire through external devices such as clamps or manipulators to achieve the purpose of continuous cutting of the wire.

[0058] It should be noted that in actual use, since the cut end of the wire is not straight during the cutting process, but the middle part is arched under the support of the middle arch component, when the length of the base 1 is limited, the clamping component can be moved a certain distance quantitatively to achieve the purpose of pulling the wire to a longer length, thereby meeting the cutting requirements of longer wires. In addition, when determining the cutting length of the wire, the height of the raised middle part of the wire needs to be adjusted through the middle arch component to ensure cutting accuracy.

[0059] In one of the more preferred embodiments, the clamping assembly includes a push seat 16 arranged on a transverse frame plate 15, a groove body for the push seat 16 to slide horizontally and longitudinally is opened on the transverse frame plate 15, and a return spring 19 is fixedly connected to one end of the push seat 16 away from the edge arc seat 2, and the end of the return spring 19 away from the push seat 16 is fixedly connected to the transverse frame plate 15, and a movable clamping block 17 and a fixed clamping block 18 arranged opposite to each other are provided below the push seat 16, and the movable clamping block 17 and the fixed clamping block 18 are fixedly connected to the push seat 16 and the transverse frame plate 15 respectively;

[0060] A cam 13 that rotates freely in the horizontal direction is fixedly rotated on the transverse frame plate 15, and a ball stud 14 that slides through the transverse frame plate 15 is provided on the side of the cam 13 facing the push seat 16. The ball stud 14 is fixedly connected to the push seat 16, and the outer peripheral surface of the cam 13 is in sliding contact with the ball stud 14.

[0061] like Figure 3 and Figure 6As shown, when the cam 13 rotates in the horizontal direction, it can squeeze the ball head column 14 that is in sliding contact with it, and then drive the ball head column 14 and the push seat 16 fixed thereon to move in the horizontal longitudinal direction, wherein a plurality of sets of movable clamping blocks 17 are fixedly provided on the push seat 16. When fixing the wire, the wire is located between the movable clamping block 17 and the fixed clamping block 18. The horizontal distance between the movable clamping block 17 and the fixed clamping block 18 is changed through the horizontal movement of the push seat 16. When both the movable clamping block 17 and the fixed clamping block 18 are in extrusion contact with the surface of the wire, the purpose of clamping and fixing the wire is achieved.

[0062] At the same time, when releasing the cut wire, the cam 13 can rotate in the opposite direction, and then under the action of the elastic potential energy of the reset spring 19, the push seat 16 can be driven to return to its initial position, so that the dynamic clamping block 17 arranged thereon is away from the fixed clamping block 18, thereby completing the release of the wire.

[0063] Furthermore, the base 1 is fixedly connected with a plurality of mounting seats 4, and a transverse shaft 3 is slidably penetrated through the mounting seats 4, which can freely move in the horizontal lateral direction and freely rotate in the horizontal terminal, and a transverse rack 5 is arranged below the transverse shaft 3, and a groove body 1 for the transverse rack 5 to slide and connect in the horizontal lateral direction is opened on the base 1;

[0064] The transverse rack 5 is fixedly connected with a limit pin 6, the transverse shaft 3 is provided with a spiral limit groove 7 for the limit pin 6 to be slidably connected, the end of the transverse shaft 3 away from the spiral limit groove 7 is fixedly connected with two groups of protrusions 8, and the side arc seat 2 is provided with two groups of arc grooves 9 for the protrusions 8 to be slidably connected and a transverse blocking groove 10 passing through the two groups of arc grooves 9.

[0065] A worm 11 is fixedly sleeved on the transverse shaft 3, and the transverse shaft 3 rotates on the transverse frame plate 15, both ends of the worm 11 are in sliding contact with the inner wall of the transverse frame plate 15, and the worm 11 is meshedly connected with a worm wheel 12, which rotates on the transverse frame plate 15 and is coaxially fixed with the cam 13.

[0066] like Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, driven by the alternating component, the transverse rack 5 moves horizontally toward the isotropic cylinder 31, and at this time, the protrusion 8 fixedly arranged on the transverse shaft 3 is in a group of arc grooves 9 and does not correspond to the transverse blocking groove 10, and then with the horizontal movement of the transverse rack 5, the transverse shaft 3 cannot move horizontally synchronously with the transverse rack 5, and then with the horizontal movement of the transverse rack 5, the limit pin 6 can be driven to slide on the spiral limit groove 7, thereby driving the transverse shaft 3 to rotate in the vertical direction, wherein the transverse shaft 3 drives the worm 11 fixedly mounted thereon to rotate, and then drives the worm wheel 12 and the cam 13 coaxial with the worm wheel 12 to rotate in the horizontal direction through the worm 11, so that the rotation of the cam 13 drives the clamping assembly to clamp and fix the wire.

[0067] At the same time, as the transverse rack 5 continues to move toward the isotropic cylinder 31, at this time, the protrusion 8 is at the junction of the arc groove 9 and the transverse blocking groove 10. As the transverse rack 5 moves horizontally, the protrusion 8 on the transverse shaft 3 is not restricted, and the transverse rack 5 can push the transverse shaft 3 to move in the horizontal direction through the limit pin 6.

[0068] At this time, the protrusion 8 enters into the transverse blocking groove 10, and with the continuous horizontal movement of the transverse rack 5, the protrusion 8 is driven to slide in the transverse blocking groove 10 until the protrusion 8 enters into another set of arc grooves 9. At the same time, the transverse shaft 3 rotates on the transverse frame plate 15, so that the transverse frame plate 15 can move horizontally synchronously with the transverse shaft 3, and when the protrusion 8 moves to the position of another set of arc grooves 9, its transverse frame plate 15 moves to the horizontal transverse stroke terminal position.

[0069] Based on the clamping assembly embodiment, the pressing and cutting assembly includes multiple groups of side ear rods 41 fixedly connected to the central turning rod 34, and a central gear 42 is fixedly rotated on the side ear rod 41, and the central gear 42 is meshingly connected with a left sliding rack 43 and a right sliding rack 44 arranged opposite to each other. A supporting frame 45 is fixedly connected to the base 1, and vertical sliding grooves for the left sliding rack 43 and the right sliding rack 44 to slide vertically are respectively provided on the supporting frame 45. The end of the right sliding rack 44 facing the base 1 is fixedly connected to a pressure plate 47 that is in contact with the wire, and the end of the left sliding rack 43 facing the base 1 is fixedly connected to a cutting knife 46.

[0070] like Figure 1 , Fig. 9 and Fig.11 As shown, when the isotropic cylinder 31 rotates in the horizontal direction, the horizontal height of the center turning rod 34 is changed. When the pressing and cutting assembly is driven to cut the wire, the center turning rod 34 can drive the multiple groups of side ear rods 41 arranged thereon to descend synchronously, and then drive the cutting knife 46 arranged on the left sliding rack 43 and the pressure plate 47 arranged on the right sliding rack 44 to move downward synchronously through the central gear 42 arranged thereon.

[0071] Among them, the initial height of the pressing plate 47 is lower than the initial height of the cutting knife 46, and then as the center gear 42 moves downward, the pressing plate 47 first squeezes and contacts the wire, thereby completing the compression of the wire, and cooperates with the clamping assembly on the transverse frame plate 15 to ensure the stability of the wire in the cutting position, thereby preventing deviation in the cutting position, thereby ensuring the cutting accuracy.

[0072] At the same time, as the pressure plate 47 presses the wire, and then as the center gear 42 continues to move downward, the right sliding rack 44 and the pressure plate 47 cannot continue to move downward synchronously. At this time, when the center gear 42 moves downward, due to the relative displacement between the center gear 42 and the right sliding rack 44, it can rotate in the vertical direction to drive the left sliding rack 43 to move downward to complete the purpose of cutting the wire. In actual use, another set of cutters 46 can be synchronously set below the base 1 corresponding to the wire cutting position to ensure that the wire can be quickly cut by the cutter 46.

[0073] It should be noted that a torsion spring is provided on the side ear rod 41 to drive the center gear 42 to return to the initial rotation angle. The torsion spring is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure. Through the torsion spring provided at the center gear 42, the side ear rod 41 can move upward and when the cutter 46 and the pressure plate 47 are separated from the wire, the cutter 46 and the pressure plate 47 can be driven to return to the initial height. Through the setting of the torsion spring, a limiting effect can be exerted on the left sliding rack 43 and the right sliding rack 44 to avoid height changes of the left sliding rack 43 and the right sliding rack 44 due to gravity difference.

[0074] On the basis of the embodiment of the pressure cutting assembly, the left turning rod 33, the middle turning rod 34 and the right turning rod 35 are all fixedly connected with two groups of guide pins 49, the outer circumferential surface of the isotropic cylinder 31 is fixedly connected with the first guide spiral plate 36, the second guide spiral plate 37 and the third guide spiral plate 38, the two groups of guide pins 49 arranged on the left turning rod 33, the middle turning rod 34 and the right turning rod 35 are respectively located at the first guide spiral plate 36, the second guide spiral plate 37 and the third guide spiral plate 38 and are in one-to-one sliding contact, and the end of the right turning rod 35 facing the base 1 is fixedly connected with a leveling column 40;

[0075] The middle arch assembly includes multiple groups of extension rods 39 arranged on the left turning rod 33, and the multiple groups of extension rods 39 are all slidably mounted on the left turning rod 33, and the multiple groups of extension rods 39 are all detachably connected to the left turning rod 33 by bolts. In the initial state, the multiple groups of extension rods 39 are all below the base 1.

[0076] like Figure 1 , Fig. 9and Fig.10 As shown, when the isotropic cylinder 31 rotates in the horizontal direction, the horizontal heights of the left turning rod 33, the middle turning rod 34 and the right turning rod 35 can be changed by the first guide spiral plate 36, the second guide spiral plate 37 and the third guide spiral plate 38 arranged thereon, wherein two groups of guide pins 49 are fixedly connected to the left turning rod 33, the middle turning rod 34 and the right turning rod 35, and the guide pins 49 at corresponding positions are respectively located at the first guide spiral plate 36, the second guide spiral plate 37 and the On both sides of the third guide spiral plate 38, when the isotropic cylinder 31 rotates, the relative positions of the first guide spiral plate 36 and the left turning rod 33, the second guide spiral plate 37 and the middle turning rod 34, and the third guide spiral plate 38 and the right turning rod 35 can be changed, and under the restriction of the triangular positioning seat 32, the left turning rod 33, the middle turning rod 34 and the right turning rod 35 can only move in the vertical direction, so that the purpose of changing the horizontal height of the three is achieved through the rotation process of the isotropic cylinder 31.

[0077] During actual use, when the isotropic cylinder 31 rotates forward, the left turning rod 33 can move upward, thereby driving the multiple groups of extension rods 39 thereon to move upward and move to a certain height above the base 1, while the right turning rod 35 and the middle turning rod 34 both move downward. When the right turning rod 35 moves downward, it can press the wire between the extension rod 39 and the guide pin 49, and make the wire in the cutting position horizontal, so as to avoid dimensional deviation of the wire during the cutting process and further improve the cutting accuracy.

[0078] At the same time, the right turning rod 35 and the leveling column 40 move to their travel terminals first. As the isotropic cylinder 31 continues to rotate, the height of the leveling column 40 no longer changes, but the left turning rod 33 can continue to move upward to continue pulling the wire until the left turning rod 33 is at the highest horizontal point to complete the set pulling length. Subsequently, the horizontal height of the left turning rod 33 no longer changes, and as the isotropic cylinder 31 subsequently rotates, the middle turning rod 34 continues to move downward to drive the pressure plate 47 in the pressing and cutting assembly to press the wire at one end of the guide block 48, and complete the purpose of cutting the wire through the cutter 46.

[0079] Among them, after a single cutting of the wire is completed, the isotropic cylinder 31 can rotate in the opposite direction to drive the left turning rod 33, the middle turning rod 34 and the right turning rod 35 to return to the initial height. At the same time, the height change distance of the top extension rod 39 is fixed. Therefore, in actual use, by changing the relative position of the top extension rod 39 and the left turning rod 33 in the initial state, when the left turning rod 33 reaches the highest point, the purpose of exposing multiple groups of top extension rods 39 to different lengths of the base 1 is achieved. Then, when performing synchronous cutting of multiple groups of wires of different lengths, the initial state heights of the multiple groups of top extension rods 39 are adjusted according to the set cutting length to ensure the cutting accuracy of the multiple groups of wires.

[0080] On the basis of the embodiment of the middle arch assembly, the intermodulation assembly includes a sector gear 27 that rotates on the base 1, and the sector gear 27 is meshedly connected with a swing gear 26 and a side gear 28, the side gear 28 is coaxially fixed with the homonymous cylinder 31, and the swing gear 26 rotates on the base 1;

[0081] The side arc seat 2 is fixedly connected with an inner cavity seat 21, and a reciprocating gear 20 that can rotate freely in the vertical direction is provided on the side of the swing gear 26 facing the inner cavity seat 21, and the reciprocating gear 20 is meshedly connected with the transverse rack 5;

[0082] A notched arc plate 29 is fixedly connected to the lower surface of the sector gear 27 , and an inner arc plate 30 that is in sliding contact with the outer circumference of the notched arc plate 29 is fixedly connected to both the swing gear 26 and the side gear 28 .

[0083] An internal threaded barrel 22 is fixedly rotated on the inner cavity seat 21, a screw 23 is threadedly connected to the inner threaded barrel 22, and a rectangular block 24 is fixedly connected to the screw 23. The inner cavity seat 21 is provided with two grooves for the rectangular block 24 to be horizontally and longitudinally slidably connected. A connecting rod 25 is fixedly rotated on the rectangular block 24, and one end of the connecting rod 25 away from the rectangular block 24 is fixedly rotated on the positioning gear 26. The reciprocating gear 20 is fixedly sleeved on the internal threaded barrel 22.

[0084] like Figure 1 , Figure 3 , Figure 5 and Figure 8 As shown, the fan gear 27 connected to the motor output shaft by the motor fixed on the base 1 rotates in the horizontal direction, wherein the fan gear 27 first meshes with the positioning gear 26 and drives it to rotate. When the positioning gear 26 rotates, it can drive the connecting rod 25 to deflect and drive the rectangular block 24 and the screw 23 thereon to move in the horizontal longitudinal direction.

[0085] At the same time, the screw rod 23 and the internal threaded barrel 22 are threadedly matched, so when the screw rod 23 and the internal threaded barrel 22 move relative to each other, the internal threaded barrel 22 can drive the reciprocating gear 20 fixed thereon to rotate, and drive the horizontal rack 5 to move horizontally through the rotation of the reciprocating gear 20, so as to achieve the purpose of changing the horizontal position of the transverse axis 3 or driving the clamping assembly to fix or release the wire.

[0086] It should be noted that when the positioning gear 26 rotates one circle, it can drive the rectangular block 24 and the screw 23 to reciprocate once in the horizontal direction through the deflection process of the connecting rod 25, while the fan gear 27 drives the positioning gear 26 to rotate only half a circle during the rotation process. At this time, the direction of rotation of the positioning gear 26 can change the movement direction of the rectangular block 24 on the inner cavity seat 21, thereby changing the movement direction of the transverse rack 5.

[0087] At the same time, when the transverse rack 5 moves toward the isotropic cylinder 31, it can drive the transverse shaft 3 to rotate, so as to drive the clamping assembly to complete the clamping of the wire, and subsequently through the continued movement of the transverse rack 5 toward the isotropic cylinder 31, drive the transverse shaft 3 and the transverse frame plate 15 to move synchronously in the horizontal direction, thereby achieving the purpose of pulling the wire, until the transverse frame plate 15 moves to the terminal position on the side away from the guide pin 49.

[0088] Furthermore, when the transverse rack 5 moves toward and away from the isotropic cylinder 31, the transverse frame plate 15 first moves toward the guide block 48 and releases the cut wire after reaching the initial position. At the same time, during actual use, a micro-movable clamp can be set at the guide block 48 to ensure that the clamping length of the wire by the clamping assembly is fixed, and when the clamping assembly pulls the wire, the restriction of the clamp on the wire can be avoided to ensure that the wire can be pulled smoothly.

[0089] Moreover, as the sector gear 27 continues to rotate, the side gear 28 can be driven to rotate forward, thereby driving the rotation of the isotropic cylinder 31 to change the horizontal height of the left turning rod 33, the middle turning rod 34 and the right turning rod 35 thereon, thereby completing the arching, pressing and shearing process of the wire, and after a single shearing of the wire is completed, the sector gear 27 is driven to rotate in the opposite direction to achieve the purpose of resetting the left turning rod 33, the middle turning rod 34 and the right turning rod 35, and the reverse rotation of the positioning gear 26 can achieve the purpose of resetting the horizontal frame plate 15 of the clamping assembly and releasing the wire.

[0090] Among them, the inner arc plate 30 that slides in contact with the notched arc plate 29 is provided on the swing gear 26 and the side gear 28. When the meshing teeth on the fan gear 27 disengage from the swing gear 26 or the side gear 28, the swing gear 26 or the side gear 28 can be prevented from rotating arbitrarily under the action of external force, thereby ensuring the reset accuracy of the parts when continuously cutting the wire.

[0091] A wire cutting process, applied to a wire cutting device, comprises the following steps:

[0092] S1. Preparation: Place the rolled wire on the base 1, and lead one end of the wire through the guide block 48, so that the lead-out lengths of multiple groups of wires at the guide block 48 are consistent, and adjust the initial height of the extension rod 39 according to the cutting lengths set for different wires;

[0093] S2, lateral traction: the clamping assembly clamps and fixes the wire, and moves horizontally away from the guide block 48 to the terminal position;

[0094] S3, arch lifting and traction: the middle arch assembly drives the top extension rod 39 to support and lift the middle part of the wire according to the set height of the top extension rod 39, so as to further pull the wire and change the effective traction length of the wire between the clamping assembly and the pressing and cutting assembly;

[0095] S4, pressing and cutting: the pressing and cutting assembly first clamps and fixes the wire near the guide block 48 to ensure cutting accuracy, and then the wire is cut by the cutting knife 46 to complete a single cutting;

[0096] S5, reset operation: after a single wire cutting is completed, the middle arch component and the pressing and cutting component return to the initial position, driving the clamping component to reset and release the cut wire to realize the reset process during continuous wire cutting.

[0097] like Fig.12 As shown, the rolled wire is placed on the base 1, and one end of the wire is led out through the guide block 48 to ensure that the lead-out lengths of multiple groups of wires at the guide block 48 are consistent. According to the set cutting lengths of different wires, the initial height of the top extension rod 39 is adjusted. This adjustment step ensures that each wire can be consistent with the set length during the cutting process.

[0098] The wire is clamped and fixed by the clamping assembly. At this time, the initial position of the transverse frame plate 15 is close to the guide block 48. After the clamping assembly fixes the wire, the cross-modulation assembly drives the transverse frame plate 15 to move away from the guide block 48 in the horizontal direction until the transverse frame plate 15 reaches the terminal position. In this process, the transverse frame plate 15 drives the wire to move, thereby achieving effective traction of the wire.

[0099] When the horizontal frame plate 15 stops moving, the isotropic cylinder 31 rotates in the horizontal direction to change the horizontal heights of the left turning rod 33, the middle turning rod 34 and the right turning rod 35. The middle arch assembly on the left turning rod 33 operates, and the top extension rod 39 supports and lifts the middle part of the wire. This action further pulls the wire, so that the effective pulling length between the clamping assembly and the pressing and cutting assembly changes, ensuring the synchronous cutting of wires of different lengths.

[0100] The pressing and cutting assembly first clamps and fixes the wire near the guide block 48 to ensure cutting accuracy. Then, the cutter 46 cuts the wire under the drive of the pressing and cutting assembly to complete a single cut. This step achieves precise cutting of the wire through the coordinated work of the pressure plate 47 and the cutter 46.

[0101] After a single wire cutting is completed, the middle arch component and the pressing and cutting component return to their initial positions. At this time, the clamping component is also reset and releases the cut wire. The external clamp or manipulator can transfer the cut wire to achieve the purpose of continuous wire cutting, and then prepare for the next cutting.

[0102] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire cutting device, comprising a base (1) and a cutting knife (46) arranged thereon for cutting the wire, and also comprising a guide block (48) arranged on the base (1) for limiting the wire, characterized in that: A top cutting mechanism on the base (1) for synchronously cutting multiple groups of wires of different lengths; The top cutting mechanism comprises an edge arc seat (2) fixedly connected to the base (1), a horizontal frame plate (15) freely movable in the horizontal direction is provided on the edge arc seat (2), a rectangular groove for the horizontal frame plate (15) to slide horizontally is provided on the edge arc seat (2), and a clamping assembly for fixing the wire is provided on the horizontal frame plate (15); The base (1) is fixedly connected with a triangular positioning seat (32), the triangular positioning seat (32) is provided with a positioning cylinder (31) that can rotate freely in the horizontal direction, the positioning cylinder (31) is provided with a left turning rod (33), a middle turning rod (34) and a right turning rod (35) that can move freely in the vertical direction, and the middle turning rod (34) is provided with a pressing and cutting assembly for cutting wires; The left turning rod (33), the middle turning rod (34) and the right turning rod (35) are all slidably penetrated on the triangular positioning seat (32), and the left turning rod (33) is provided with a middle arch component for adjusting the length of the wire between the clamping component and the pressing and cutting component; The base (1) is provided with an intermodulation component for driving the horizontal lateral movement of the lateral frame plate (15) and the horizontal rotation of the isotropic cylinder (31) to alternately operate.

2. A wire cutting device according to claim 1, characterized in that: The clamping assembly comprises a push seat (16) arranged on a transverse frame plate (15), a groove body for the push seat (16) to slide horizontally and longitudinally is opened on the transverse frame plate (15), and one end of the push seat (16) away from the edge arc seat (2) is fixedly connected to a return spring (19), and one end of the return spring (19) away from the push seat (16) is fixedly connected to the transverse frame plate (15), and a movable clamping block (17) and a fixed clamping block (18) arranged opposite to each other are provided below the push seat (16), and the movable clamping block (17) and the fixed clamping block (18) are fixedly connected to the push seat (16) and the transverse frame plate (15) respectively; A cam (13) which is freely rotatable in the horizontal direction is arranged on the horizontal frame plate (15) and is fixedly rotated on the axis. A ball stud (14) which is slidably penetrated through the horizontal frame plate (15) is arranged on the side of the cam (13) facing the push seat (16). The ball stud (14) is fixedly connected to the push seat (16), and the outer peripheral surface of the cam (13) is in sliding contact with the ball stud (14).

3. A wire cutting device according to claim 2, characterized in that: The base (1) is fixedly connected with a plurality of mounting seats (4), a transverse shaft (3) is slidably passed through the mounting seat (4) and is free to move in the horizontal direction and freely rotate in the horizontal end stroke, a transverse rack (5) is arranged below the transverse shaft (3), and a groove body for the transverse rack (5) to be slidably connected in the horizontal direction is provided on the base (1); The transverse rack (5) is fixedly connected to a limit pin (6), the transverse shaft (3) is provided with a spiral limit groove (7) for sliding connection with the limit pin (6), one end of the transverse shaft (3) away from the spiral limit groove (7) is fixedly connected to two groups of protrusions (8), and the side arc seat (2) is provided with two groups of arc grooves (9) for sliding connection with the protrusions (8) and a transverse blocking groove (10) passing through the two groups of arc grooves (9).

4. A wire cutting device according to claim 3, characterized in that: A worm (11) is fixedly sleeved on the transverse shaft (3), and the transverse shaft (3) is fixedly rotatable on the transverse frame plate (15), both ends of the worm (11) are in sliding contact with the inner wall of the transverse frame plate (15), and the worm (11) is meshedly connected with a worm wheel (12), and the worm wheel (12) is fixedly rotatable on the transverse frame plate (15) and is coaxially fixed with the cam (13).

5. The wire cutting device according to claim 1, characterized in that: The pressing and cutting assembly comprises a plurality of side ear rods (41) fixedly connected to the central turning rod (34); a central gear (42) is fixedly rotated on the side ear rod (41); and the central gear (42) is meshedly connected with a left sliding rack (43) and a right sliding rack (44) arranged opposite to each other; a supporting frame (45) is fixedly connected to the base (1); and vertical sliding grooves for the left sliding rack (43) and the right sliding rack (44) to slide vertically are respectively provided on the supporting frame (45); a pressing plate (47) which is in contact with the wire is fixedly connected to one end of the right sliding rack (44) facing the base (1); and a cutting knife (46) is fixedly connected to one end of the left sliding rack (43) facing the base (1).

6. A wire cutting device according to claim 1, characterized in that: The left turning rod (33), the middle turning rod (34) and the right turning rod (35) are all fixedly connected with two groups of guide pins (49); the outer peripheral surface of the isotropic cylinder (31) is fixedly connected with a first guide spiral plate (36), a second guide spiral plate (37) and a third guide spiral plate (38); the two groups of guide pins (49) arranged on the left turning rod (33), the middle turning rod (34) and the right turning rod (35) are respectively located on the first guide spiral plate (36), the second guide spiral plate (37) and the third guide spiral plate (38) and are in one-to-one sliding contact; One end of the right turning rod (35) facing the base (1) is fixedly connected to a leveling column (40).

7. A wire cutting device according to claim 6, characterized in that: The middle arch assembly comprises a plurality of groups of extension rods (39) arranged on the left turning rod (33), the plurality of groups of extension rods (39) are all slidably sleeved on the left turning rod (33), and the plurality of groups of extension rods (39) are all detachably connected to the left turning rod (33) by bolts; The plurality of groups of extension rods (39) are all located below the base platform (1) in an initial state.

8. A wire cutting device according to claim 3, characterized in that: The intermodulation assembly comprises a sector gear (27) which is fixedly rotated on the base (1), and the sector gear (27) is meshingly connected with a swing gear (26) and a side gear (28), the side gear (28) is coaxially fixed with the alignment cylinder (31), and the swing gear (26) is fixedly rotated on the base (1); The edge arc seat (2) is fixedly connected to an inner cavity seat (21), and a reciprocating gear (20) that can rotate freely in a vertical direction is provided on the side of the swing gear (26) facing the inner cavity seat (21), and the reciprocating gear (20) is meshingly connected with the transverse rack (5); The lower surface of the sector gear (27) is fixedly connected with a notched arc plate (29), and the swing gear (26) and the side gear (28) are both fixedly connected with an inner arc plate (30) in sliding contact with the outer peripheral surface of the notched arc plate (29).

9. A wire cutting device according to claim 8, characterized in that: An internal threaded cylinder (22) is fixedly rotatable on the inner cavity seat (21), a screw rod (23) is threadedly connected to the internal threaded cylinder (22), and a rectangular block (24) is fixedly connected to the screw rod (23), and a groove body two for horizontal and longitudinal sliding connection of the rectangular block (24) is provided on the inner cavity seat (21), a connecting rod (25) is fixedly rotatable on the rectangular block (24), and one end of the connecting rod (25) away from the rectangular block (24) is fixedly rotatable on the positioning gear (26); The reciprocating gear (20) is fixedly sleeved on the internal threaded cylinder (22).

10. A wire cutting process, applied to a wire cutting device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Preparation: placing the rolled wire on the base (1), and leading one end of the wire through the guide block (48), so that the leading lengths of multiple groups of wires at the guide block (48) are consistent, and adjusting the initial height of the extension rod (39) according to the cutting lengths set for different wires; S2, lateral traction: the clamping assembly clamps and fixes the wire and moves horizontally away from the guide block (48) to the terminal position; S3, arch lifting and traction: the middle arch assembly drives the top extension rod (39) to support and lift the middle part of the wire according to the set height of the top extension rod (39), so as to further pull the wire and change the effective pulling length of the wire between the clamping assembly and the pressing and cutting assembly; S4, pressing and cutting: the pressing and cutting assembly first clamps and fixes the wire near the guide block (48) to ensure cutting accuracy, and then cuts the wire under the action of the cutting knife (46) to complete a single cutting; S5, reset operation: after a single wire cutting is completed, the middle arch component and the pressing and cutting component return to the initial position, driving the clamping component to reset and release the cut wire to realize the reset process during continuous wire cutting.

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