High-precision automatic wire stripping device capable of self-adapting to wire diameter

Abstract

The invention relates to a high-precision automatic wire stripping device capable of self-adapting to the diameter of a wire. The high-precision automatic wire stripping device comprises a base, and a clamping conveying unit, a fixed clamping jaw unit, a rotary cutting unit and a movable clamping jaw unit which are respectively arranged on the base and are sequentially placed, the clamping and conveying unit is used for radially shrinking, clamping and conveying the wire; the movable clamping jaw unit is used for radially shrinking and clamping a wire and stretching the wire to a set wire stripping length position; the fixed clamping jaw unit is used for radially shrinking and clamping a wire; the rotary cutting unit is used for radially contracting a cutter to annularly cut the insulating skin of the wire and stripping the cut insulating skin from the wire; the fixed clamping jaw unit and the movable clamping jaw unit are arranged on the two sides of the rotary cutting unit respectively, it is ensured that the wire does not generate torsional deformation in the rotary cutting process, the rotary cutting device can be suitable for various wire types, meanwhile, a cutter is electrified, when the cutter makes contact with a wire core, a closed loop can be formed, feeding can be stopped, and it is ensured that the wire core is not damaged.

Description

Technical Field

[0001] The invention relates to a wire stripping device, in particular to a high-precision automatic wire stripping device capable of adapting to the diameter of a wire. Background Art

[0002] In the fields of aerospace, communication equipment manufacturing, automobile manufacturing, etc., the reliability and stability of wire connection is one of the most basic conditions to ensure the normal operation of the equipment. Therefore, precise wire stripping operation is required, but most existing wire strippers and wire stripping machines are difficult to apply to wires of different specifications and completely separate the wire insulation without damaging the wire core, and cannot meet the requirements of high-precision wire stripping.

[0003] For example, the prior art CN116526378B discloses a cable stripping device with adjustable stripping length and stripping diameter. It is necessary to manually adjust the positions of two radial cable cutting blades to separate the wire core and the insulation skin. Not only is the degree of automation low and the efficiency low, but it also does not solve the problem of damaging the wire core during stripping. At the same time, the concave arc semicircular blade has a fixed radius and cannot adapt to the stripping of wires of different specifications. In addition, it is difficult to completely separate the insulation skins of wires of different diameters only by radial cutting with two concave arc semicircular blades with fixed radius. In addition, the manual wire feeding has low precision and requires high operating skills from the user.

[0004] Another example is a device for cutting and stripping the outer insulation of a cable disclosed in the prior art CN110994482A. The cable is fed into a cutting chamber by the rotation and delivery of a delivery arm. The cable surface is cut in a circular and linear manner by a cutting knife to cut off the insulation of the cable. At the same time, the insulation cut off is automatically separated by a stripping mechanism, and the cable and the cut waste are transported out separately. However, the prior art has the following problems:

[0005] (1) The existing technology is mainly aimed at thicker and harder cables. For some softer wires, if a cutting knife is used to directly cut the cable surface in a circular or straight line, twisting deformation is likely to occur, affecting the cutting effect, and in severe cases, causing the wire to be scrapped;

[0006] (2) The prior art drives the cutting screw to rotate through the sixth control motor, drives the slider and the cutting knife holder to descend to contact and fix the cable, and drives the cutting knife to descend to contact and cut into the cable insulation. Since the insulation thickness of different wires is different, if the cutting knife cuts into the cable insulation shallowly, the cable insulation cannot be completely separated. However, if the cutting knife cuts into the cable insulation deeply, the wire core is likely to be lost.

[0007] (3) In the prior art, the cable is conveyed by driving the cam wheel through the first control motor, that is, the feed amount of the cable is controlled by the first control motor. If the stripping length is to be adjusted, the parameters of the control program need to be modified, which requires high technical ability of the user. Summary of the invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a high-precision automatic wire stripping device that can adapt to the diameter of the wire. Compared with general wire stripping devices, the device has the advantages of high precision, high efficiency, smooth insulation cut, adaptive wire type (soft and hard wire) and diameter, lossless wire core while ensuring that the wire insulation is completely separated along the radial position, stepless adjustable stripping length, automatic completion of the stripping process, and almost no operating skills required for the user.

[0009] To achieve the above object, the technical solution adopted by the present invention is: a high-precision automatic wire stripping device capable of adaptively adjusting the wire diameter, comprising a base, a control unit arranged on the base, a clamping and conveying unit, a fixed clamping jaw unit, a rotating cutting unit and a movable clamping jaw unit respectively arranged on the base and placed in sequence;

[0010] The clamping and conveying unit comprises a conveying frame, a first wire hole horizontally arranged on the conveying frame, two conveying wheel assemblies relatively arranged on the inner side of the conveying frame and radially arranged along the first wire hole, and a first radial adjustment mechanism arranged on the conveying frame for driving the conveying wheel assemblies to radially extend and retract; at least one of the conveying wheel assemblies has power and can convey the wire;

[0011] The fixed clamping jaw unit comprises a fixing frame, a second wire hole horizontally arranged on the fixing frame, a plurality of straight clamping jaws arranged on the fixing frame and radially arranged along the second wire hole, and a second radial adjustment mechanism arranged on the fixing frame and driving the plurality of straight clamping jaws to radially extend and retract simultaneously;

[0012] The rotary cutting unit comprises a cutting frame movably arranged on the base, a cutting translation mechanism arranged on the base for driving the cutting frame to approach or move away from the fixed clamping claw unit, a rotating frame rotatably arranged on the cutting frame, a rotating driving mechanism arranged on the cutting frame for driving the rotating frame to rotate, a third wire hole arranged on the rotating frame and coaxially placed with the second wire hole, two cutters arranged oppositely in the radial direction of the third wire hole, and a third radial adjustment mechanism arranged on the rotating frame for driving the two cutters to radially extend and retract; the two cutters are charged and can form a closed loop when they contact the wire core of the wire, so that the third radial adjustment mechanism stops contracting;

[0013] The movable jaw unit comprises a movable frame movably arranged on the base, a jaw translation mechanism arranged on the base for driving the movable frame to approach or move away from the rotary cutting unit, a fourth line hole arranged on the movable frame and coaxially arranged with the third line hole, a plurality of sharp-nosed jaws arranged on the movable frame and radially arranged along the fourth line hole, and a fourth radial adjustment mechanism arranged on the movable frame for simultaneously driving a plurality of sharp-nosed jaws to radially extend and retract; the plurality of sharp-nosed jaws are arranged on one side of the movable frame close to the rotary cutting unit, and can sequentially pass through the third line hole and the second line hole and extend to the conveying wheel assembly;

[0014] The control unit is used to control the actions of the clamping and conveying unit, the fixed clamping jaw unit, the rotating cutting unit and the movable clamping jaw unit respectively.

[0015] Preferably, each of the conveying wheel assemblies comprises a wheel frame, a damping wheel rotatably arranged on the wheel frame and placed perpendicular to the axis of the first wire hole, a rubber sleeve arranged on the surface of the damping wheel, and a film-shaped pressure sensor arranged on the rubber sleeve;

[0016] A bevel gear a is arranged on the side of one of the damping wheels; a bevel gear b meshing with the bevel gear a and a motor g for driving the bevel gear b are arranged on the corresponding wheel frame.

[0017] Preferably, the first radial adjustment mechanism comprises a first double-sided annular gear rotatably arranged on the first wire hole, a worm gear driving assembly b arranged on the outside of the conveying frame for driving the first double-sided annular gear to rotate, and a rack b vertically slidably arranged on the inside of the conveying frame and meshing with the first double-sided annular gear;

[0018] One of the conveying wheel assemblies is arranged at the end of the rack b, and the other conveying wheel assembly is fixedly connected to the conveying frame through a supporting frame.

[0019] Preferably, the clamping and conveying unit further comprises a centering mechanism for locating the centers of the two conveying wheel assemblies on the axis of the second wire hole;

[0020] The centering mechanism includes a photoelectric sensor b located on the horizontal plane of the second line hole axis, a gear c arranged on the outside of the conveying frame and meshing with the first double-sided ring gear, a gear b arranged coaxially with the gear c, a rack a arranged vertically and slidably on the outside of the conveying frame and meshing with the gear b, a laser emitter b arranged on the rack a and cooperating with the photoelectric sensor b, a guide seat arranged on the base, and a lifting assembly;

[0021] The initial position of the laser transmitter b is located on the horizontal plane of the center of the two conveying wheel assemblies; the transmission ratio of the first double-sided ring gear to the gear c is 2:1; the lifting speed of the rack a is half of the lifting speed of the rack b;

[0022] The conveying frame is vertically slidably arranged on the guide seat; the lifting assembly includes a lifting rack vertically arranged on the conveying frame, and a worm gear driving assembly a arranged on the guide seat for driving the conveying frame to lift.

[0023] Preferably, the clamping and conveying unit further comprises a pair of photoelectric sensors a and a laser emitter a arranged on the outside of the conveying wheel assembly, for accurately controlling the wire feed amount of the conveying wheel assembly.

[0024] Preferably, the second radial adjustment mechanism comprises a plurality of linear slide grooves arranged on the fixed frame and placed radially along the second wire hole, an annular rotating disk arranged on the fixed frame facing the rotary cutting unit and placed coaxially with the second wire hole, a plurality of arcuate slide grooves arranged at the intersection of the annular rotating disk and the linear slide grooves, an annular gear m placed coaxially with the annular rotating disk, and a worm gear drive assembly c arranged on the fixed frame for driving the annular gear m to rotate; each side surface of the straight clamp passes through the arcuate slide groove and is slidably arranged in the linear slide groove;

[0025] The fourth radial adjustment mechanism is the same as the second radial adjustment mechanism, and the installation method of the pointed jaw is also the same as that of the straight jaw;

[0026] The clamping parts of the straight clamping jaw and the pointed jaw are both provided with film-shaped pressure sensors.

[0027] Preferably, the third radial adjustment mechanism includes a third double-sided annular gear rotatably arranged on the third wire hole, a worm gear drive assembly e arranged on the rotating frame for driving the third double-sided annular gear to rotate, two tool holders radially slidably arranged on the rotating frame, and two racks c respectively arranged in parallel on both sides of the third double-sided annular gear and meshing with the third double-sided annular gear; the two racks c are respectively connected to the two tool holders; the two cutters are respectively arranged on the two tool holders, and their centers are located on the axis of the third wire hole.

[0028] Preferably, insulating rubber sleeves are provided at the connection points between the two cutters and the cutter holder.

[0029] Preferably, the rotary drive mechanism includes an annular worm gear arranged on the side of the rotating frame and coaxially placed with the third wire hole, a worm b arranged on the cutting frame and meshing with the annular worm gear, and a motor f arranged on the cutting frame for driving the worm b to rotate.

[0030] Preferably, it also includes a stroke adjustment unit for adjusting the wire stripping length; the stroke adjustment unit includes a scale a horizontally arranged on the base and located on one side of the movable frame, a stroke switch i arranged at the scale a0 scale, a first slide groove arranged in parallel with the scale a, a scale b slidably arranged in the first slide groove and fixed by a threaded pin, a stroke switch j arranged at the scale b0 scale, a second slide groove arranged in parallel with the scale b, a slider slidably arranged in the second slide groove and fixed by a threaded pin, and a stroke switch m arranged on the slider;

[0031] When the movable frame triggers the travel switch i, the end of the sharp-nosed clamp coincides with the wire feeding position of the conveying wheel assembly;

[0032] The distance between the travel switch j and the travel switch i is equal to the distance between the cutter and the conveying wheel assembly; when the movable frame triggers the travel switch j, the end of the sharp jaw coincides with the cutting position of the cutter;

[0033] The travel switch m is used to control the wire withdrawal distance of the cutting frame.

[0034] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0035] 1. The clamping and conveying unit, the fixed clamping jaw unit, the rotating cutting unit and the movable clamping jaw unit in the present invention all have radial telescopic functions, and can realize self-adaptation of grasping and locking wires of different diameters;

[0036] 2. The present invention can ensure that the wire does not undergo twisting deformation during the rotary cutting process by respectively arranging a fixed clamping jaw unit and a movable clamping jaw unit on both sides of the rotary cutting unit, and is applicable to both hard wires and soft wires;

[0037] 3. The cutter of the rotary cutting unit in the present invention is charged, and when it contacts the wire core, it can form a closed loop and stop cutting, thereby ensuring that the wire core is intact and realizing self-adaptation for cutting wires of different diameters.

[0038] 4. The rotary cutting unit of the present invention adopts a rotary cutting method to achieve complete separation of the insulation skin and a smooth incision.

[0039] 5. The present invention adopts a damping wheel in the conveying wheel assembly of the clamping conveying unit, which can provide a damping force when the movable clamping jaw unit pulls the wire, so that the wire is in a stretched state throughout the whole process, and can adapt to the stripping of soft and hard wires;

[0040] 6. The present invention realizes stepless adjustment of the wire stripping length and the wire withdrawal distance by adjusting the scale b and the slider in the stroke adjustment unit, and the mechanical adjustment structure adopted is not only convenient, but also has low requirements on users and is easy to operate compared to program adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0042] Attached Figure 1 A side view of the high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to the present invention;

[0043] Attached Figure 2 for Figure 1 A partial enlarged view of the L in the middle;

[0044] Attached Figure 3 for Figure 1 A partial enlarged view of the M in the middle;

[0045] Attached Figure 4 for Figure 1 A local enlarged view of location N in the middle;

[0046] Attached Figure 5 A three-dimensional diagram of the high-precision automatic wire stripping device capable of adapting to the wire diameter according to the present invention;

[0047] Attached Figure 6 for Figure 5 A partial enlarged view of the K in the middle;

[0048] Attached Figure 7 for Figure 5 A partial enlarged view of the middle part;

[0049] Attached Figure 8 It is a partial top view of the stroke adjustment unit in the present invention;

[0050] Attached Fig. 9 It is a front structural schematic diagram of the clamping and conveying unit in the present invention;

[0051] Attached Fig.10 for Fig. 9 A partial enlarged view of point D in the middle;

[0052] Attached Fig.11 It is a schematic diagram of the back structure of the clamping and conveying unit in the present invention;

[0053] Attached Fig.12 for Fig.11 A partial enlarged view of point E in the middle;

[0054] Attached Fig.13 for Fig.11 A partial enlarged view of point F in the middle;

[0055] Attached Fig.14 for Fig.11 A partial enlarged view of point B in the middle;

[0056] Attached Fig.15 It is a structural schematic diagram of a fixed clamping jaw unit close to a rotating cutting unit in the present invention;

[0057] Attached Fig.16 for Fig.15 A partial enlarged view of the middle V;

[0058] Attached Fig.17 It is a structural schematic diagram of a fixed clamping claw unit close to a clamping and conveying unit in the present invention;

[0059] Attached Fig.18 It is a structural schematic diagram of a fixing frame in a fixing jaw unit of the present invention;

[0060] Attached Fig.19 for Fig.18 A partial enlarged view of the H in the middle;

[0061] Attached Fig. 20 It is a structural schematic diagram of the rotary cutting unit close to the movable clamping claw unit in the present invention;

[0062] Attached Fig.21 It is a structural schematic diagram of the rotating cutting unit close to the fixed clamping jaw unit in the present invention;

[0063] Attached Fig. 22 for Fig.21 A partial enlarged view of the middle J;

[0064] Attached Fig.23 It is a schematic structural diagram of the cutter and its third radial adjustment mechanism in the rotary cutting unit of the present invention;

[0065] Attached Fig.24 for Fig.23 A partial enlarged view of the middle T;

[0066] Attached Fig.25 It is a structural schematic diagram of the rotary drive mechanism in the present invention;

[0067] Attached Fig.26 It is a schematic diagram of the right side structure of the movable clamping jaw unit in the present invention;

[0068] Attached Fig. 27 for Fig.26 A partial enlarged view of the middle P;

[0069] Attached Fig.28 for Fig.26 A partial enlarged view of the R in the middle;

[0070] Attached Fig.29 It is a schematic diagram of the left side structure of the movable clamping jaw unit of the present invention;

[0071] Attached Fig.30 For the present invention Fig.29 Schematic diagram of the local structure;

[0072] Attached Fig.31 for Fig.30 A partial enlarged view of the middle U;

[0073] Attached Fig.32 It is a structural schematic diagram of a movable frame in a movable clamping jaw unit of the present invention;

[0074] Attached Fig.33 for Fig.32 A partial enlarged view of the G in the middle;

[0075] Attached Fig.34 It is a schematic diagram of the structure of the worm gear drive assembly in the present invention. DETAILED DESCRIPTION

[0076] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0077] Attached Figure 1 The high-precision automatic wire stripping device capable of self-adapting to the wire diameter of the present invention comprises a base (1), a control unit (4) arranged on the base (1), a clamping and conveying unit (I), a fixed clamping jaw unit (II), a rotating cutting unit (III) and a movable clamping jaw unit (IV) which are respectively arranged on the base (1) and placed in sequence;

[0078] like Figure 9-14 As shown, the clamping conveying unit (I) comprises a conveying frame (12), a first wire hole horizontally arranged on the conveying frame (12), an upper conveying wheel assembly and a lower conveying wheel assembly relatively arranged on the inner side of the conveying frame (12) and radially arranged along the first wire hole, and a first radial adjustment mechanism arranged on the conveying frame (12) for driving the upper conveying wheel assembly to radially extend and retract; the upper conveying wheel assembly has power and can convey the wire; the lower conveying wheel assembly is fixedly connected to the conveying frame (12) through a support frame;

[0079] like Figure 15-19 As shown, the fixed clamping jaw unit (II) comprises a fixing frame (13), a second line hole horizontally arranged on the fixing frame (13), a plurality of straight clamping jaws (52) arranged on the fixing frame (13) and radially disposed along the second line hole, and a second radial adjustment mechanism arranged on the fixing frame (13) and driving the plurality of straight clamping jaws (52) to radially extend and retract simultaneously;

[0080] like Figure 20-25As shown, the rotary cutting unit (III) comprises a cutting frame (16) movably arranged on a base (1), a cutting translation mechanism arranged on the base (1) for driving the cutting frame (16) to approach or move away from a fixed clamping jaw unit (II), a rotating frame (15) rotatably arranged on the cutting frame (16), a rotating driving mechanism arranged on the cutting frame (16) for driving the rotating frame (15) to rotate, a third wire hole arranged on the rotating frame (15) and coaxially arranged with the second wire hole, two convex circular arc cutting knives (534) arranged opposite to each other in the radial direction of the third wire hole, and a third radial adjustment mechanism arranged on the rotating frame (15) for driving the two convex circular arc cutting knives (534) to radially extend and retract; the two convex circular arc cutting knives (534) are charged and can form a closed loop when contacting the wire core, so that the third radial adjustment mechanism stops contracting;

[0081] like Figure 26-33 As shown, the movable jaw unit (IV) comprises a movable frame movably arranged on the base (1), a jaw translation mechanism arranged on the base (1) for driving the movable frame to approach or move away from the rotary cutting unit (III), a fourth line hole arranged on the movable frame and coaxially arranged with the third line hole, a plurality of sharp-nosed jaws (5) arranged on the movable frame and radially arranged along the fourth line hole, and a fourth radial adjustment mechanism arranged on the movable frame for simultaneously driving the plurality of sharp-nosed jaws (5) to radially extend and retract; the plurality of sharp-nosed jaws (5) are arranged on a side of the movable frame close to the rotary cutting unit (III), and can sequentially pass through the third line hole and the second line hole to extend to the conveying wheel assembly;

[0082] The control unit (4) comprises a control panel and a battery module, which are used to respectively control the actions of the clamping and conveying unit (I), the fixed clamping jaw unit (II), the rotating cutting unit (III) and the movable clamping jaw unit (IV).

[0083] Further, if Fig.14 As shown, the upper conveying wheel assembly comprises an upper wheel frame, an upper damping wheel (501) rotatably arranged on the upper wheel frame and placed perpendicular to the axis of the first wire hole, an upper rubber sleeve (502) arranged on the surface of the upper damping wheel (501), and a thin film pressure sensor a (62) arranged on the upper rubber sleeve (502);

[0084] The lower conveying wheel assembly comprises a lower wheel frame, a lower damping wheel (5011) rotatably arranged on the lower wheel frame and placed opposite to the upper damping wheel (501), a lower rubber sleeve (5021) arranged on the surface of the lower damping wheel (5011), and a thin film pressure sensor b (623) arranged on the lower rubber sleeve (5021).

[0085] Further, if Fig.14As shown, a bevel gear a (503) is arranged on the side of the damping wheel in the upper conveying wheel assembly; a bevel gear b (504) meshing with the bevel gear a (503) and a motor g (26) for driving the bevel gear b (504) are arranged on the upper wheel frame.

[0086] Further, if Fig. 9 and 11 As shown, the first radial adjustment mechanism comprises a first double-sided annular gear rotatably arranged on the first wire hole, a worm gear driving assembly b (301) arranged on the outside of the conveying frame (12) for driving the first double-sided annular gear to rotate, and a rack b (51) vertically slidably arranged on the inside of the conveying frame (12) and meshing with the first double-sided annular gear;

[0087] The upper conveying wheel assembly is arranged at the end of the rack b (51).

[0088] Further, if Figure 9-10 and Figure 26-27 As shown, the clamping and conveying unit (I) also includes a centering mechanism for locating the centers of the two conveying wheel assemblies on the axis of the second wire hole;

[0089] The centering mechanism comprises a photoelectric sensor b (631) located on the horizontal plane of the axis of the second thread hole, a gear c (371) arranged outside the conveying frame (12) and meshing with the first double-sided ring gear, a gear b (37) arranged coaxially with the gear c (371), a rack a (372) arranged vertically and slidably outside the conveying frame (12) and meshing with the gear b (37), a laser emitter b (63) arranged on the rack a (372) and cooperating with the photoelectric sensor b (631), a guide seat (2) arranged on the base (1), and a lifting assembly;

[0090] The initial position of the laser emitter b (63) is located on the central horizontal plane of the two conveying wheel assemblies; the transmission ratio between the first double-sided ring gear and the gear c (371) is 2:1; the lifting speed of the rack a (372) is half of the lifting speed of the rack b (51);

[0091] The conveying frame (12) is vertically slidably arranged on the guide seat (2); the lifting assembly comprises a lifting rack vertically arranged on the conveying frame (12), and a worm gear driving assembly a (3) arranged on the guide seat (2) for driving the conveying frame (12) to lift and lower.

[0092] Further, if Figure 11-13 As shown, the clamping and conveying unit (I) further includes a pair of photoelectric sensors a (122) and a laser emitter a (121) arranged on the outside of the conveying wheel assembly, which are used to accurately control the wire feeding amount of the conveying wheel assembly.

[0093] Further, if Figure 15-18 As shown, the second radial adjustment mechanism comprises a plurality of linear slide grooves (38) arranged on the fixed frame (13) and arranged along the radial direction of the second linear hole, an annular turntable (23) arranged on the fixed frame (13) on the side facing the rotary cutting unit (III) and arranged coaxially with the second linear hole, a plurality of arcuate slide grooves (33) arranged on the annular turntable (23) and arranged to cross the linear slide grooves (38), an annular gear m (536) arranged coaxially with the annular turntable (23), and a worm gear drive assembly c (302) arranged on the fixed frame (13) for driving the annular gear m (536) to rotate; the side surface of each of the straight clamping jaws (52) passes through the arcuate slide groove (33) and is slidably arranged in the linear slide groove (38); the clamping portion of each of the straight clamping jaws (52) is provided with a thin film pressure sensor c (622);

[0094] like Figure 30-32 As shown, the fourth radial adjustment mechanism is the same as the second radial adjustment mechanism, and the installation method of the pointed jaw (5) is also the same as that of the straight jaw (52);

[0095] The clamping parts of the pointed jaws (5) are each provided with a thin film pressure sensor d (621).

[0096] Further, if Figure 20-23 As shown, the third radial adjustment mechanism comprises a third double-sided annular gear rotatably arranged on the third wire hole, a worm gear driving assembly e (304) arranged on the rotating frame (15) for driving the third double-sided annular gear to rotate, two tool holders radially slidably arranged on the rotating frame (15), and two racks c (53) respectively arranged in parallel on both sides of the third double-sided annular gear and meshing with the third double-sided annular gear; the two racks c (53) are respectively connected to the two tool holders; and the two convex arc-shaped cutting knives (534) are respectively arranged on the two tool holders, and their centers are located on the axis of the third wire hole.

[0097] Further, if Fig.24 As shown, the connection between the two convex arc-shaped cutting knives (534) and the knife holder is provided with an insulating rubber sleeve (535).

[0098] Further, if Fig.25 As shown, the rotary drive mechanism comprises an annular worm gear (39) arranged on the side of the rotating frame (15) and coaxially placed with the third wire hole, a worm gear b (391) arranged on the cutting frame (16) and meshing with the annular worm gear (39), and a motor f (25) arranged on the cutting frame (16) for driving the worm gear b (391) to rotate.

[0099] Further, if Figure 7-8As shown, it also includes a stroke adjustment unit for adjusting the wire stripping length; the stroke adjustment unit includes a scale a (36), a stroke switch i (611), a first slide groove, a scale b (361), a stroke switch j (641), a second slide groove, a slider (3611), and a stroke switch m (642);

[0100] The scale a (36) is fixedly connected to the base (1), and the travel switch i (611) is fixedly connected to the scale a (36) (the initial position of the travel switch i (611) is when the end of the sharp-nosed clamp (5) coincides with the wire feeding position of the upper damping wheel (501) and the lower damping wheel (5011), that is, the movable frame (14) triggers the position of the travel switch i (611), ensuring that the sharp-nosed clamp (5) just grabs a 5mm wire).

[0101] The scale b (361) can be moved and fixed in the first slide groove on the scale a (36), and the travel switch l (641) is fixedly connected to the scale b (361) at the 0 scale of the scale b (361) (the initial position of the travel switch l (641) is that the 0mm scale on the scale b (361) coincides with the 5mm scale on the scale a (36), and the movable frame (14) triggers the position of the travel switch l (641), at which time the end of the sharp mouth clamp (5) The wire stripping length is 5 mm when the cutting position of the two convex arc-shaped cutters (534) coincides; the movable scale b (361) is used to adjust the position of the travel switch l (641); the 0 scale on the scale b (361) corresponds to the value on the scale a (36) which is the wire stripping length, thereby realizing stepless adjustment of the wire stripping length; after the scale b (361) is moved, it is locked and fixed on the scale a (36) by the threaded pin a (362) and the threaded pin c (364);

[0102] The slider (3611) moves and is fixed in the second sliding groove on the scale b (361), and after the movement is completed, it can be locked and fixed on the scale b (361) by the threaded pin b (363); the travel switch m (642) is fixedly connected to the slider (3611), and when the slider (3611) moves to the left end of the sliding groove on the scale b (361), the arrow on the slider (3611) just points to the 0 scale on the scale b (361); the scale value on the scale b (361) pointed by the arrow on the slider (3611) is the length of the wire withdrawn after the wire stripping is completed (the wire withdrawn length should be slightly larger than the wire stripping length to ensure that the wire stripping waste is completely separated from the wire core).

[0103] Further, the first double-sided annular gear includes a first annular tooth body and gears d (3712) respectively arranged on both sides of the first annular tooth body;

[0104] like Fig.23As shown, the third double-sided ring gear has the same structure as the first double-sided ring gear, including a third ring gear body and gears f (533) respectively arranged on both sides of the third ring gear body.

[0105] Further, if Fig. 20 As shown, the cutting translation mechanism comprises a cutting translation guide rail and a worm gear drive assembly d (303) arranged on a base (1); the cutting frame (16) is slidably arranged on the cutting translation guide rail, and a cutting translation rack (29) is arranged on one side; the worm gear drive assembly d (303) is used to drive the cutting translation rack (29) to drive the cutting frame (16) to approach or move away from the fixed clamping jaw unit (II);

[0106] like Fig.29 As shown, the jaw translation mechanism has the same structure as the cutting translation mechanism, comprising a jaw translation guide rail and a worm gear drive assembly f (305) arranged on the base (1); the movable frame (14) is slidably arranged on the jaw translation guide rail, and a jaw translation rack (22) is arranged on one side; the worm gear drive assembly f (305) is used to drive the jaw translation rack (22) to drive the movable frame (14) to approach or move away from the rotating cutting unit (III).

[0107] Further, if Fig.34 As shown, the worm gear drive assembly a (3), the worm gear drive assembly b (301), the worm gear drive assembly c (302), the worm gear drive assembly d (303), the worm gear drive assembly e (304), and the worm gear drive assembly f (305) have the same structure, and all include a worm wheel a (31) and a worm a (35) meshing with each other, a power motor (32) for driving the worm a (35) to rotate, and an output gear (34) coaxially arranged with the worm wheel a (31); the output gear (34) is used to drive one of the lifting rack, the driving gear d (3712), the ring gear m (536), the gear f (533), the cutting translation rack (29), and the clamping jaw translation rack (22).

[0108] In the initial state: the movable frame (14), the cutting frame (16), the sharp jaw (5), the rack b (51), the straight jaw (52), and the rack c (53) are in contact with the travel switch d (221), the travel switch h (61), the travel switch c (141), the travel switch a (123), the travel switch b (131), and the travel switch f (5301) respectively. (The positions of these travel switches are the initial positions of the corresponding mechanical components)

[0109] When working:

[0110] First, the switch (11) is turned on, and the laser transmitter a (121) emits laser light so that the photoelectric sensor a (122) receives the laser signal; then, the wire is placed on the lower rubber sleeve (5021) of the lower damping wheel (5011) connected to the conveying frame (12); when the film-shaped pressure sensor b (623) on the lower rubber sleeve (5021) detects that the pressure reaches a specified value, the worm gear drive assembly b (301) drives the first double-sided ring gear to rotate, and since the gears d (3712) on both sides of the first double-sided ring gear are respectively engaged with the rack b (51) and the gear c (371), the transmission is divided into two paths: one path drives the rack b (51) to move downward, thereby driving the upper rubber sleeve (502) on the upper damping wheel (501) to clamp the wire downward; the other path drives the gear b (371) through the gear c (371) The rack a (372) is driven to descend. Since the transmission ratio of the gear d (3712) to the gear c (371) is 2:1, the initial position of the laser emitter b (63) is located on the horizontal plane where the midpoint of the line connecting the centers of the initial positions of the upper damping wheel (501) and the lower damping wheel (5011) is located, thereby ensuring that the downward displacement of the laser emitter b (63) driven by the rack a (372) is equal to half the downward displacement of the upper damping wheel (501) driven by the rack b (51); when the thin film pressure sensor a (62) and the thin film pressure sensor b (623) on the upper rubber sleeve (502) and the lower rubber sleeve (5021) simultaneously detect that the pressure reaches a specified value, the worm gear drive assembly b (301) stops, thereby achieving the clamping of the upper damping wheel (501) and the lower damping wheel (5011) on the end of the wire;

[0111] When the worm gear drive assembly b (301) stops, the motor g (26) drives the bevel gear b (504) to rotate in the reverse direction, and the bevel gear b (504) drives the bevel gear a (503) to drive the upper damping wheel (501) to rotate forward, and the wire is transported forward to a position of 5 mm. At this time, the wire blocks the laser, and the photoelectric sensor a (122) cannot detect the laser signal. The motor g (26) stops, and the wire extends 5 mm from between the upper damping wheel (501) and the lower damping wheel (5011) to facilitate grasping;

[0112] When the motor g (26) stops, the worm gear drive assembly a (3) drives the lifting rack to drive the conveying frame (12) to rise, thereby driving the laser emitter b (63) to move upward; (that is, the laser emitter b (63) is not affected by the diameter of the wire and is always in the same horizontal plane with the axis of the wire); when the photoelectric sensor b (631) fixedly connected to the movable frame (14) (the photoelectric sensor b (631) is located on the horizontal plane where the grasping axis of the sharp-nosed clamp (5) is located) receives the laser signal, the worm gear drive assembly a (3) stops, and at this time the axis of the wire coincides with the grasping axis of the sharp-nosed clamp (5); and the grasping axis of the sharp-nosed clamp (5) coincides with the locking axis of the straight clamp (52) and the cutting axis of the convex arc-shaped cutter (534) in design, thereby achieving the coincidence of the axis of the wire with the grasping axis of the sharp-nosed clamp (5), the locking axis of the straight clamp (52) and the cutting axis of the convex arc-shaped cutter (534);

[0113] When the worm gear drive assembly a (3) stops, the worm gear drive assembly f (305) drives the clamping jaw to translate the rack (22) to drive the movable frame (14) to move toward the direction close to the upper damping wheel (501) and the lower damping wheel (5011). When the travel switch i (611) is triggered by the movable frame (14), the worm gear drive assembly a (3) stops. At this time, the length of the wire extending into the sharp-mouthed clamping jaw (5) is 5 mm.

[0114] The fourth radial adjustment mechanism drives the plurality of sharp-nosed clamping jaws (5) to contract radially at the same time, and when the thin-film pressure sensor d (621) on the sharp-nosed clamping jaws (5) detects that the pressure reaches a specified value, the fourth radial adjustment mechanism stops, and the sharp-nosed clamping jaws (5) grab the wire;

[0115] The worm gear drive assembly f (305) drives the clamping jaw to translate the rack (22) to drive the movable frame (14) to move in a direction away from the upper damping wheel (501) and the lower damping wheel (5011); when the travel switch l (641) is triggered by the movable frame (14), the worm gear drive assembly f (305) stops; the pointed jaw (5) stretches the wire to a set stripping length position;

[0116] When the worm gear drive assembly f (305) stops, the worm gear drive assembly c (302) drives the gear m (536) to drive the annular turntable (23) to rotate. Since the side surface of each straight clamping jaw passes through the arc-shaped slide groove (33) and is slidably arranged in the linear slide groove (38), the plurality of straight clamping jaws (52) are driven to contract radially. When the film-shaped pressure sensor c (622) on the straight clamping jaw (52) detects that the pressure reaches a specified value, the worm gear drive assembly c (302) stops, and the straight clamping jaw (52) locks the root of the wire to be cut.

[0117] When the worm gear drive assembly c (302) stops, the control unit (4) energizes the two convex arc-shaped cutters (534). At this time, the two cutters do not form a closed loop. The worm gear drive assembly e (304) drives the gear f (533) on the third double-sided ring gear to drive the convex arc-shaped cutters (534) on the two racks c (53) to radially contract along the surface of the straight clamping jaw (52); when the two convex arc-shaped cutters (534) contact the wire core of the stripped wire, the control unit (4) detects that the two convex arc-shaped cutters (534) form a closed loop, and the worm gear drive assembly e (304) stops; at this time, the two convex arc-shaped cutters (534) have cut the insulation part of the wire, ensuring that the wire core is intact;

[0118] When the worm gear drive assembly e (304) stops, the motor f (25) drives the annular worm gear (39) to rotate forward through the worm gear b (391), and drives the rotating frame (15) to drive the two convex arc-shaped cutters (534) to rotate forward through the annular worm gear (39); when the photoelectric sensor c (651) detects the laser signal emitted by the laser transmitter c (65), the motor f (25) stops and the rotary cutting is completed; (semi-rotation of rotary cutting) complete radial separation of the wire insulation is achieved;

[0119] When the motor f (25) stops, the fourth radial adjustment mechanism reverses, driving the plurality of sharp-nosed clamping jaws (5) to radially expand simultaneously; when the sharp-nosed clamping jaws (5) touch the travel switch c (141), the fourth radial adjustment mechanism stops, and the sharp-nosed clamping jaws (5) return to their initial positions;

[0120] When the fourth radial adjustment mechanism stops, the worm gear drive assembly f (305) and the worm gear drive assembly d (303) are started simultaneously.

[0121] The worm gear drive assembly f (305) is reversed, driving the clamping jaw to translate the rack (22) to drive the movable frame (14) to move in a direction away from the upper damping wheel (501) and the lower damping wheel (5011);

[0122] The worm gear drive assembly d (303) is reversed to drive the cutting translation rack (29) to drive the cutting frame (16) to move in a direction away from the upper damping wheel (501) and the lower damping wheel (5011);

[0123] When the travel switch m (642) is triggered by the movable frame (14), the worm gear drive assembly f (305) and the worm gear drive assembly d (303) stop at the same time, the wire withdrawal is completed, and the wire end insulation falls from the rectangular drop hole (28) on the base (1);

[0124] During the movement, the distance between the movable frame (14) and the cutting frame (16) remains unchanged, and the moving length of the movable frame (14) and the cutting frame (16) is the scale value corresponding to the wire withdrawal length on the scale b (361) pointed by the slider (3611); (the wire withdrawal length should be slightly greater than the wire stripping length to ensure that the wire end insulation can be completely removed from the wire core with the help of the two convex arc-shaped cutters (534);)

[0125] When the worm gear drive assembly d (303) stops, the worm gear drive assembly e (304) reverses, driving the two racks c (53) to expand radially through the gear f (533) on the third double-sided ring gear. When the racks c (53) contact the travel switch f (5301), the worm gear drive assembly e (304) stops, and the two convex arc-shaped cutters (534) return to their initial positions.

[0126] When the worm gear drive assembly e (304) stops, the motor f (25) drives the annular worm gear (39) to rotate in reverse through the worm gear b (391), and the annular worm gear (39) drives the rotating frame (15) to rotate in reverse half a circle, and the photoelectric sensor d (652) detects the laser signal emitted by the laser emitter c (65), the motor f (25) stops, and the rotating frame (15) returns to the initial state;

[0127] When the motor f (25) stops, the worm gear drive assembly c (302) rotates in the reverse direction, and the gear m (536) drives the annular turntable (23) to rotate, driving the plurality of straight clamping jaws (52) to expand radially at the same time; when the straight clamping jaws (52) contact the travel switch b (131), the worm gear drive assembly c (302) stops, and the straight clamping jaws (52) return to the initial position;

[0128] The motor g (26) drives the bevel gear b (504) to rotate forward, and drives the upper damping wheel (501) to rotate reversely through the bevel gear a (503), and the wire exits from between the upper damping wheel (501) and the lower damping wheel (5011);

[0129] When the thin film pressure sensor b (623) on the lower rubber sleeve (5021) detects no signal, the worm gear drive assembly b (301) reverses, and the gears d (3712) on both sides of the first double-sided ring gear drive the rack b (51) to move up and back to the initial position; the other way drives the gear b (37) through the gear c (371) to drive the rack a (372) to rise; when the rack b (51) contacts the travel switch a (123), the worm gear drive assembly b (301) stops, and the rack b (51) and the rack a (372) return to their initial positions;

[0130] When the worm gear drive assembly b (301) stops, the worm gear drive assembly d (303) rotates forward, driving the cutting translation rack (29) to drive the cutting frame (16) to move in a direction close to the upper damping wheel (501) and the lower damping wheel (5011); when the cutting frame (16) triggers the travel switch h (61), the worm gear drive assembly d (303) stops, and the cutting frame (16) returns to the initial position;

[0131] The worm gear drive assembly f (305) rotates forward, driving the clamping jaw to translate the rack (22) to drive the movable frame (14) to move in a direction close to the upper damping wheel (501) and the lower damping wheel (5011); when the movable frame (14) triggers the travel switch d (221), the worm gear drive assembly f (305) stops, and the movable frame (14) returns to the initial position;

[0132] At this time, the entire device returns to its initial state.

[0133] The above are only specific application examples of the present invention and do not constitute any limitation on the protection scope of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. A high-precision automatic wire stripping device that can adapt to the wire diameter, characterized by: It comprises a base, a control unit arranged on the base, a clamping and conveying unit, a fixed clamping claw unit, a rotating cutting unit and a movable clamping claw unit which are respectively arranged on the base and placed in sequence; The clamping and conveying unit comprises a conveying frame, a first wire hole horizontally arranged on the conveying frame, two conveying wheel assemblies relatively arranged on the inner side of the conveying frame and radially arranged along the first wire hole, and a first radial adjustment mechanism arranged on the conveying frame for driving the conveying wheel assemblies to radially extend and retract; at least one of the conveying wheel assemblies has power and can convey the wire; The fixed clamping jaw unit comprises a fixing frame, a second wire hole horizontally arranged on the fixing frame, a plurality of straight clamping jaws arranged on the fixing frame and radially arranged along the second wire hole, and a second radial adjustment mechanism arranged on the fixing frame and driving the plurality of straight clamping jaws to radially extend and retract simultaneously; The rotary cutting unit comprises a cutting frame movably arranged on the base, a cutting translation mechanism arranged on the base for driving the cutting frame to approach or move away from the fixed clamping claw unit, a rotating frame rotatably arranged on the cutting frame, a rotating driving mechanism arranged on the cutting frame for driving the rotating frame to rotate, a third wire hole arranged on the rotating frame and coaxially placed with the second wire hole, two cutters arranged oppositely in the radial direction of the third wire hole, and a third radial adjustment mechanism arranged on the rotating frame for driving the two cutters to radially extend and retract; the two cutters are charged and can form a closed loop when they contact the wire core of the wire, so that the third radial adjustment mechanism stops contracting; The movable jaw unit comprises a movable frame movably arranged on the base, a jaw translation mechanism arranged on the base for driving the movable frame to approach or move away from the rotary cutting unit, a fourth line hole arranged on the movable frame and coaxially arranged with the third line hole, a plurality of sharp-nosed jaws arranged on the movable frame and radially arranged along the fourth line hole, and a fourth radial adjustment mechanism arranged on the movable frame for simultaneously driving a plurality of sharp-nosed jaws to radially extend and retract; the plurality of sharp-nosed jaws are arranged on one side of the movable frame close to the rotary cutting unit, and can sequentially pass through the third line hole and the second line hole and extend to the conveying wheel assembly; The control unit is used to control the actions of the clamping and conveying unit, the fixed clamping jaw unit, the rotating cutting unit and the movable clamping jaw unit respectively.

2. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 1, characterized in that: Each of the conveying wheel assemblies comprises a wheel frame, a damping wheel rotatably arranged on the wheel frame and placed perpendicular to the axis of the first wire hole, a rubber sleeve arranged on the surface of the damping wheel, and a film-shaped pressure sensor arranged on the rubber sleeve; A bevel gear a is arranged on the side of one of the damping wheels; a bevel gear b meshing with the bevel gear a and a motor g for driving the bevel gear b are arranged on the corresponding wheel frame.

3. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 1 or 2, characterized in that: The first radial adjustment mechanism comprises a first double-sided annular gear rotatably arranged on the first wire hole, a worm gear driving assembly b arranged outside the conveying frame for driving the first double-sided annular gear to rotate, and a rack b vertically slidably arranged inside the conveying frame and meshing with the first double-sided annular gear; One of the conveying wheel assemblies is arranged at the end of the rack b, and the other conveying wheel assembly is fixedly connected to the conveying frame through a supporting frame.

4. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 3, characterized in that: The clamping and conveying unit also includes a centering mechanism for locating the centers of the two conveying wheel assemblies on the axis of the second wire hole; The centering mechanism includes a photoelectric sensor b located on the horizontal plane of the second line hole axis, a gear c arranged on the outside of the conveying frame and meshing with the first double-sided ring gear, a gear b arranged coaxially with the gear c, a rack a arranged vertically and slidably on the outside of the conveying frame and meshing with the gear b, a laser emitter b arranged on the rack a and cooperating with the photoelectric sensor b, a guide seat arranged on the base, and a lifting assembly; The initial position of the laser transmitter b is located on the horizontal plane of the center of the two conveying wheel assemblies; the transmission ratio of the first double-sided ring gear to the gear c is 2:1; the lifting speed of the rack a is half of the lifting speed of the rack b; The conveying frame is vertically slidably arranged on the guide seat; the lifting assembly includes a lifting rack vertically arranged on the conveying frame, and a worm gear driving assembly a arranged on the guide seat for driving the conveying frame to lift.

5. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 4, characterized in that: The clamping and conveying unit also includes a pair of photoelectric sensors a and a laser transmitter a arranged on the outside of the conveying wheel assembly, which are used to accurately control the wire feeding amount of the conveying wheel assembly.

6. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 1, characterized in that: The second radial adjustment mechanism comprises a plurality of linear slide grooves arranged on the fixed frame and arranged along the radial direction of the second wire hole, an annular rotating disk arranged on the fixed frame facing the rotary cutting unit and arranged coaxially with the second wire hole, a plurality of arcuate slide grooves arranged at the intersection of the annular rotating disk and the linear slide grooves, an annular gear m arranged coaxially with the annular rotating disk, and a worm gear driving assembly c arranged on the fixed frame for driving the annular gear m to rotate; each side surface of the straight clamp passes through the arcuate slide groove and is slidably arranged in the linear slide groove; The fourth radial adjustment mechanism is the same as the second radial adjustment mechanism, and the installation method of the pointed jaw is also the same as that of the straight jaw; The clamping parts of the straight clamping jaw and the pointed jaw are both provided with film-shaped pressure sensors.

7. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 1, characterized in that: The third radial adjustment mechanism includes a third double-sided annular gear rotatably arranged on the third wire hole, a worm gear driving assembly e arranged on the rotating frame for driving the third double-sided annular gear to rotate, two tool holders radially slidably arranged on the rotating frame, and two racks c respectively arranged in parallel on both sides of the third double-sided annular gear and meshing with the third double-sided annular gear; the two racks c are respectively connected to the two tool holders; the two cutters are respectively arranged on the two tool holders, and their centers are located on the axis of the third wire hole.

8. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 7, characterized in that: The connection points between the two cutters and the cutter holder are both provided with insulating rubber sleeves.

9. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to any one of claims 1, 7 and 8, characterized in that: The rotary drive mechanism comprises an annular worm gear arranged on the side of the rotating frame and coaxially placed with the third wire hole, a worm b arranged on the cutting frame and meshing with the annular worm gear, and a motor f arranged on the cutting frame for driving the worm b to rotate.

10. The high-precision automatic wire stripping device capable of self-adapting to the wire diameter according to claim 1, characterized in that: It also includes a stroke adjustment unit for adjusting the wire stripping length; the stroke adjustment unit includes a scale a horizontally arranged on the base and located on one side of the movable frame, a stroke switch i arranged at the scale a0 scale, a first slide groove arranged in parallel with the scale a, a scale b slidably arranged in the first slide groove and fixed by a threaded pin, a stroke switch j arranged at the scale b0 scale, a second slide groove arranged in parallel with the scale b, a slider slidably arranged in the second slide groove and fixed by a threaded pin, and a stroke switch m arranged on the slider; When the movable frame triggers the travel switch i, the end of the sharp-nosed clamp coincides with the wire feeding position of the conveying wheel assembly; The distance between the travel switch j and the travel switch i is equal to the distance between the cutter and the conveying wheel assembly; when the movable frame triggers the travel switch j, the end of the sharp jaw coincides with the cutting position of the cutter; The travel switch m is used to control the wire withdrawal distance of the cutting frame.

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