A wire connecting terminal bending mechanism and a wire connecting terminal manufacturing machine

Abstract

The present invention discloses a bending mechanism for a connecting wire head and a connecting wire head manufacturing machine, which relates to the technical field of connecting wire head manufacturing. The mechanism includes a mounting plate, a fixed elbow, a first movable elbow, a second movable elbow, and a driving component. The fixed elbow is fixedly installed on the mounting plate, and is provided with a first wire hole and a first wire groove that are communicated with each other; the first movable elbow is slidably connected to the mounting plate, and the first movable elbow is provided with a second wire groove and a third wire groove that are communicated with each other; the second movable elbow is slidably connected to a sliding member provided on the mounting plate; the driving component is used to drive the first movable elbow and the second movable elbow to slide on the mounting plate respectively. The present invention is more convenient to use and the manufacturing process is more efficient. Moreover, the opening and closing timing of the split second wire hole and third wire hole can limit and guide the connecting wire head during the bending process, so that the manufactured connecting wire head has a good bending shape and accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of production of wire connection heads, and particularly to a wire connection head bending mechanism and a wire connection head production machine. Background Art

[0002] In the construction of power facilities, wire connection heads are required to connect various modules, such as internal wiring of electronic devices, connection and assembly of electrical components, fault repair, equipment upgrade and transformation, etc. Wire connection heads are divided into straight type and special type according to usage requirements. Among the special type wire connection heads, the "Z" - shaped wire connection head is the most widely used. Especially for wiring connections in switch cabinets and meter boxes, almost all are "Z" - shaped wire connection heads. The bending part of the "Z" - shaped wire connection head is usually a right angle, and in a few cases, it is an obtuse angle.

[0003] For example, the patent with the publication number CN218517605U discloses a wire and cable bending device, which includes a frame. There is a suspended plate on the frame. The suspended plate is provided with a waist - shaped hole in the left - right direction, and a number of positioning shafts that can adjust their positions are matched with the waist - shaped hole; one end of the suspended plate extends out an arc plate. There is a cylinder between the center of the arc plate and the frame. The cylinder and the positioning shaft have the same diameter and their centers are on the same straight line. A limiting shaft is provided on the frame directly in front of the cylinder; a sleeve is sleeved on the cylinder. The sleeve is vertically and fixedly connected to a rotating rod, and a bearing that contacts the arc plate is provided on the rotating rod.

[0004] Although the above - mentioned patent can produce wire connection heads with various bending shapes, it is inconvenient when producing "Z" - shaped wire connection heads with a large demand. For example, the prior art such as the above - mentioned patent usually bends the wire connection head about 90° using a bending die when making a "Z" - shaped wire connection head, then flips the wire connection head 180° along the axis of the un - bent part, and then performs secondary bending to produce a "Z" - shaped wire connection head. The operation is not convenient enough, and the efficiency also needs to be improved. Summary of the Invention

[0005] The purpose of the present invention is to provide a wire connection head bending mechanism and a wire connection head production machine to solve the problems of inconvenient operation and low production efficiency when making "Z" - shaped wire connection heads in the above - mentioned prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: A wire connection head bending mechanism, including a mounting plate, a fixed elbow, a first movable elbow, a second movable elbow, and a driving assembly. Among them, the fixed elbow is fixedly installed on the mounting plate, and a first wire hole and a first wire groove communicating with each other are provided thereon; the first movable elbow is slidably connected to the mounting plate along the length direction of the first wire groove, and a second wire groove and a third wire groove communicating with each other are provided on the first movable elbow, and the second wire groove and the first wire groove can be aligned to form a circular second wire hole; the second movable elbow is slidably connected to a sliding member provided on the mounting plate along the length direction of the third wire groove, and a fourth wire groove is provided thereon, and the fourth wire groove and the third wire groove can be aligned to form a circular third wire hole; the driving assembly is used to drive the first movable elbow and the second movable elbow to slide on the mounting plate respectively.

[0007] Further, the sliding member is slidably connected to the mounting plate along the length direction of the first wire groove, an elastic member is provided between the second movable elbow and the sliding member, and the process of the elastic member restoring deformation drives the second movable elbow to slide close to the fixed elbow; a jack parallel to the third wire groove is provided on the first movable elbow, and a plug rod is fixedly connected to the second movable elbow. When the first movable elbow slides against the elastic force of the elastic member until the jack is aligned with the plug rod, the second movable elbow can drive the plug rod to insert into the jack when sliding on the sliding member.

[0008] Further, the cross-sections of the first wire groove, the second wire groove, the third wire groove, and the fourth wire groove are all semi-circular.

[0009] Further, the first wire groove is perpendicular to the first wire hole, and the second wire groove is perpendicular to the third wire groove.

[0010] Further, a first sliding groove is provided on the mounting plate, a first sliding block is provided on the first movable elbow, and a second sliding block is provided on the sliding member. Both the first sliding block and the second sliding block are slidably connected in the first sliding groove.

[0011] Further, the sliding member has a slide rail, and a second sliding groove is provided on the second movable elbow. The second sliding groove is slidably sleeved on the slide rail.

[0012] Further, the driving assembly includes a first driving unit for driving the first movable elbow to slide on the mounting plate and a second driving unit for driving the second movable elbow to slide on the mounting plate.

[0013] Further, the first driving unit includes a first electric push rod, whose seat body is fixedly installed on the mounting plate, and its power output end is fixedly connected to the first movable elbow.

[0014] Further, the second driving unit includes a second electric push rod, whose seat body is fixedly installed on the slide rail of the sliding member, and its power output end is fixedly connected to the second movable elbow.

[0015] The present invention also provides a wire connection head manufacturing machine, which includes the above-mentioned wire connection head bending mechanism and a cutting and pulling mechanism for peeling the two ends of the wire connection head.

[0016] In the above technical solution, for the wire connection head bending mechanism provided by the present invention, after the wire connection head is fed and passes through the first wire hole on the fixed elbow by a preset length, the driving component drives the first movable elbow to slide along the length direction of the first wire groove, so as to cooperate with the fixed elbow to bend the wire connection head for the first time. The bent part of the wire connection head is located in the second wire hole formed by the alignment of the second wire groove and the first wire groove. Then, the driving component drives the second movable elbow to slide along the length direction of the third wire groove, so as to cooperate with the first movable elbow to bend the bent part of the wire connection head once again, thereby manufacturing the required "Z"-shaped wire connection head. The present invention is more convenient to use. There is no need to perform a 180° flip on the wire connection head between the two bending operations, and the manufacturing process is more efficient. Moreover, the opening and closing timing of the split second wire hole and third wire hole can limit and guide the wire connection head during the bending process, so that the manufactured wire connection head has a good bending shape and accuracy.

[0017] Since the above-mentioned wire connection head bending mechanism has the above effects, the wire connection head manufacturing machine including this wire connection head bending mechanism should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the embodiments.

[0019] Figure 1 FIG. is a schematic structural diagram of the wire connection head bending mechanism provided for the embodiment;

[0020] Figure 2 FIG. is a front view of the structure of the wire connection head bending mechanism provided for the embodiment;

[0021] Figure 3 FIG. is a rear view of the structure of the wire connection head bending mechanism provided for the embodiment;

[0022] Figure 4 FIG. is a schematic structural diagram of the fixed elbow provided for the embodiment;

[0023] Figure 5 FIG. is a schematic structural diagram of the first movable elbow provided for the embodiment;

[0024] Figure 6 FIG. is a schematic structural diagram of the second movable elbow provided for the embodiment;

[0025] Figure 7 FIG. is a schematic structural diagram of the sliding member provided for the embodiment;

[0026] Figure 8 Schematic structural diagram during the bending operation of the wire connecting head bending mechanism provided for the embodiment;

[0027] Figure 9 Schematic overall structure diagram of the wire connecting head making machine provided for the embodiment;

[0028] Figure 10 Rear view of the overall structure of the wire connecting head making machine provided for the embodiment;

[0029] Figure 11 Schematic structural diagram of the cutting and pulling unit provided for the embodiment;

[0030] Figure 12 Schematic structural diagram of another perspective of the cutting and pulling unit provided for the embodiment;

[0031] Figure 13 Schematic partial structure diagram of the cutting and pulling unit provided for the embodiment.

[0032] Explanation of reference numerals:

[0033] 1. Mounting plate; 11. First chute; 12. Movable plate; 21. Fixed elbow; 22. First movable elbow; 23. Second movable elbow; 24. First wire hole; 25. First wire groove; 26. Second wire groove; 27. Third wire groove; 28. Fourth wire groove; 29. Sliding member; 291. Second slider; 292. Slide rail; 210. Second chute; 211. First electric push rod; 212. Second electric push rod; 213. Support rod; 214. Tension spring; 215. Plug rod; 216. Socket hole; 217. First slider; 3. Cutting and pulling unit; 31. First track; 32. Second track; 33. Tool holder; 34. Blade; 35. Sleeve rod; 36. Guide groove; 37. Central rod; 38. Column block; 39. Limiting plate; 391. First groove section; 392. Second groove section; 310. Slide rod; 311. Rotating rod; 312. Swing rod; 313. Locking bolt; 314. Gear; 315. First rack; 316. Second rack; 317. First connecting rod; 318. Second connecting rod; 319. Slide sleeve; 320. Compression spring; 321. Protective cover. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] Refer to Figures 1 - 13 An embodiment of the present invention provides a wire connecting head making machine for making wire connecting heads, including a wire connecting head bending mechanism, a cutting and pulling mechanism for peeling both ends of the wire connecting head, and a mechanism for pulling and cutting the wire connecting head.

[0036] Refer to Figures 1 - 8 , the wire connecting head bending mechanism includes a mounting plate 1, a fixed elbow 21, a first movable elbow 22, a second movable elbow 23 and two electric push rods. The mounting plate 1 is preferably arranged vertically as a fixed base. The fixed elbow 21 is fixedly installed on the mounting plate 1 through a plurality of bolt pairs. A first wire hole 24 is vertically opened on the fixed elbow 21, and a first wire groove 25 is horizontally opened at the bottom of the fixed elbow 21. The first wire hole 24 is a through hole, and the bottom is communicated to the first wire groove 25. The inner mouth at the top is chamfered to form a flared shape, which can conveniently guide the wiring head to be inserted into the first wire hole 24. The turning point between the first wire hole 24 and the first wire groove 25 is rounded, and the included angle between the first wire hole 24 and the first wire groove 25 is the angle when the wire connecting head is bent for the first time.

[0037] A first sliding groove 11 is opened on the mounting plate 1. A first sliding block 217 is integrally formed on the back side of the first movable elbow 22. The first movable elbow 22 is slidably connected in the first sliding groove 11 on the mounting plate 1 through the first sliding block 217. The sliding direction of the first movable elbow 22 is the length direction of the first wire groove 25. A second wire groove 26 is opened on one side of the first movable elbow 22, and a third wire groove 27 is opened on the adjacent other side. The second wire groove 26 and the third wire groove 27 are communicated and rounded at the corner of the first movable elbow 22. The second wire groove 26 is parallel to the first wire groove 25, and the angle between the third wire groove 27 and the second wire groove 26 is the angle when the wire connecting head is bent for the second time. When the first movable elbow 22 slides, the second wire groove 26 can be aligned with the first wire groove 25 to form a circular second wire hole.

[0038] A sliding member 29 is arranged on the mounting plate 1. The sliding member 29 has a slide rail 292, and the slide rail 292 is parallel to the third wire groove 27. A second sliding groove 210 is opened on the second movable elbow 23. The second movable elbow 23 is slidably sleeved on the slide rail 292 of the sliding member 29 through the second sliding groove 210. The sliding direction of the second movable elbow 23 on the sliding member 29 is the length direction of the third wire groove 27. A fourth wire groove 28 is opened on the side of the second movable elbow 23 close to the fixed elbow 21. The fourth wire groove 28 is parallel to the third wire groove 27. When the second movable elbow 23 slides, the fourth wire groove 28 can be aligned with the third wire groove 27 to form a circular third wire hole. The "Z" - shaped path formed by the first wire hole 24, the second wire hole and the third wire hole is the shape of the wire connecting head after being bent.

[0039] In the above - mentioned solution, the cross - sections of the first wire groove 25, the second wire groove 26, the third wire groove 27 and the fourth wire groove 28 are all semi - circular, and the diameters of the first wire hole 24, the first wire groove 25, the second wire groove 26, the third wire groove 27 and the fourth wire groove 28 are equal.

[0040] Two electric push rods, one is called the first electric push rod 211 and the other is called the second electric push rod 212. The seat body of the first electric push rod 211 is fixedly installed on the mounting plate 1 by bolts, and the inner rod of the first electric push rod 211 is fixedly connected to the first movable elbow 22 as the power output end. The seat body of the second electric push rod 212 is fixedly installed on the slide rail 292 of the slider 29, and the inner rod of the second electric push rod 212 is fixedly connected to the second movable elbow 23 as the power output end.

[0041] Using two electric push rods is only a preferred technical solution. The two electric push rods can also be replaced by other driving components, such as two hydraulic cylinders, two air cylinders, two linear motors, etc., or a combination between them, such as a combination of an electric push rod and a linear motor. All in all, the driving component includes two units, which are divided into the first driving unit for driving the first movable elbow 22 to slide and the second driving unit for driving the second movable elbow 23 to slide.

[0042] When the first wire hole 24 and the first wire groove 25 are set to be perpendicular to each other, it means that the wire connecting head is bent at a right angle for the first time (the bending part has a curvature and a right angle is formed between the two bent segments). When the first wire hole 24 and the first wire groove 25 are set to be obtuse, it means that the wire connecting head is bent at an obtuse angle for the first time; when the third wire groove 27 and the second wire groove 26 are set to be perpendicular to each other, it means that the wire connecting head is bent at a right angle for the second time. When the third wire groove 27 and the second wire groove 26 are set to be obtuse, it means that the wire connecting head is bent at an obtuse angle for the second time. Usually, the first wire hole 24 and the first wire groove 25 are set to be perpendicular to each other, and the third wire groove 27 and the second wire groove 26 are set to be perpendicular to each other.

[0043] There are two ways to connect the sliding member 29 and the mounting plate 1 in the above technical solution. In one embodiment, the sliding member 29 is fixedly connected to the mounting plate 1, and the mounting position of the sliding member 29 on the mounting plate 1 is relatively fixed. During operation, after the wire connecting head is fed and passes through the first wire hole 24 on the fixed elbow 21 for a preset length, the first electric push rod 211 drives the first movable elbow 22 to slide along the length direction of the first wire groove 25, so as to cooperate with the fixed elbow 21 to bend the wire connecting head for the first time. The bent part of the wire connecting head is located in the second wire hole formed by the alignment of the second wire groove 26 and the first wire groove 25. Then, the second electric push rod 212 drives the second movable elbow 23 to slide along the length direction of the third wire groove 27, so as to cooperate with the first movable elbow 22 to bend the bent part of the wire connecting head again. The part bent for the second time is located in the third wire hole formed by the alignment of the fourth chute and the third wire groove, thereby manufacturing the required "Z"-shaped wire connecting head. This embodiment is only used to batch manufacture a "Z"-shaped wire connecting head with a specific length a for the middle part of the two bends of the wire connecting head. The achieved effect is more convenient to use. There is no need to perform a 180° flip on the wire connecting head between the two bending operations, and the manufacturing process is more efficient. Moreover, the opening and closing timing of the split second wire hole and third wire hole can limit and guide the wire connecting head during the bending process, so that the manufactured wire connecting head has a good bending shape and accuracy.

[0044] In another embodiment, in order to meet the different requirements for the length a of the middle part of the two bends of the "Z"-shaped wire connecting head, specifically: the sliding member 29 includes a slide rail 292 and a second slider 291. The sliding member 29 is slidably connected to the first chute 11 on the mounting plate 1 through the second slider 291, and the sliding direction is the length direction of the first wire groove 25. The position of the sliding member 29 on the mounting plate 1 can be automatically adjusted. In addition, a hanging ear is screwed or welded to the second slider 291 through a support rod 213, and another hanging ear is screwed or welded to the back side of the mounting plate 1. A tension spring 214 is hooked between the two hanging ears. The tension spring 214 can be replaced by other elastic members, such as a coil spring or an elastic cord, etc. The elastic force of the tension spring 214 or other elastic members is to pull the second movable elbow 23 on the sliding member 29 towards the fixed elbow 21. The two hanging ears and the tension spring 214 are all located on the back side of the mounting plate 1. A jack 216 is opened on the first movable elbow 22. The jack 216 is parallel to the third wire groove 27. A plug rod 215 is fixedly connected to the second movable elbow 23. The plug rod 215 is parallel to the fourth wire groove 28 and the jack 216, and the plug rod 215 is adapted to the jack 216.

[0045] During operation, initially, under the elastic force of the tension spring 214, the second movable elbow 23 causes the plug rod 215 to abut against the fixed elbow 21. After the wire connection head is fed into and passes through the first wire hole 24 on the fixed elbow 21 by a preset length, the first electric push rod 211 drives the first movable elbow 22 to slide along the length direction of the first wire groove 25, so as to cooperate with the fixed elbow 21 to bend the wire connection head for the first time. The bent part of the wire connection head is located in the second wire hole formed by the alignment of the second wire groove 26 and the first wire groove 25. The first electric push rod 211 stops pushing the first movable elbow 22 until the insertion hole 216 on the first movable elbow 22 aligns with the plug rod 215; then the second electric push rod 212 drives the second movable elbow 23 to slide along the length direction of the third wire groove 27 for the first stroke. During the first stroke, the second movable elbow 23 has not yet contacted the wire connection head, but the plug rod 215 is inserted into the insertion hole 216 first. The plugging and matching of the plug rod 215 and the insertion hole 216 keep the first movable elbow 22 and the second movable elbow 23 relatively fixed in the length direction of the first wire groove 25; then, according to the different length requirements between the two bent parts of the wire connection head, the first electric push rod 211 drives the first movable elbow 22 to slide again. The first movable elbow 22 drives the second movable elbow 23 and the sliding member 29 to move along the first chute 11 through the plugging and matching of the insertion hole 216 and the plug rod 215, and the tension spring 214 is also stretched and stores energy, so that the length a between the first bent part and the next second bent part of the wire connection head can be flexibly adjusted. What the length a intuitively reflects is the distance b between the third wire groove 27 and the first wire hole 24 in the length direction of the first wire groove 25, and the length a is equal to the distance b; next, the second electric push rod 212 drives the second movable elbow 23 to continue to slide along the length direction of the third wire groove 27 for the second stroke. During the second stroke, the second movable elbow 23 and the first movable elbow 22 cooperate to bend the wire connection head for the second time. The part bent for the second time is located in the third wire hole formed by the alignment of the fourth chute and the third wire groove, so as to manufacture "Z"-shaped wire connection heads of various required sizes. On the basis of being convenient and efficient in the manufacturing process, this embodiment can also freely adjust the length a between the two bent parts of the wire connection head according to requirements, so as to flexibly adapt to the depth of the upper and lower (or left and right) two power connection components in the front-rear direction, and has better applicability.

[0046] After the bending of the current wire connection head is completed, the second electric push rod 212 first drives the second movable elbow 23 and the plug rod 215 to retract to the initial state. The plug rod 215 then disengages from the insertion hole 216, and the elastic potential energy stored in the tension spring 214 is released, so that the second movable elbow 23 and the sliding member 29 slide along the first chute 11 and approach the fixed elbow 21 until the plug rod 215 abuts against the fixed elbow 21, and then the first electric push rod 211 drives the first movable elbow 22 to return to the initial state.

[0047] Refer to Figures 9 - 13, The cutting and pulling mechanism is the downstream process after the wire connecting head is bent by the bending mechanism, and is used to strip the two ends of the wire connecting head. The cutting and pulling mechanism specifically includes a cutting and pulling unit 3 provided on the mounting plate 1 and another cutting and pulling unit 3 provided on the movable plate 12. A protective cover 321 for covering and protecting the cutting and pulling unit 3 is installed on the mounting plate 1. The movable plate 12 is slidably arranged on the mounting plate 1 along the length direction of the first chute 11. The movable plate 12 and the mounting plate 1 are locked by a locking bolt 313. The position adjustment between the movable plate 12 and the mounting plate 1 can adjust the lateral distance between the two cutting and pulling units 3, so that the two cutting and pulling units 3 can adapt to different lengths a between the first bending point and the next second bending point of the wire connecting head. The two cutting and pulling units 3 are respectively used to cut and pull the outer skins of the two ends of the wire connecting head to expose the wire cores, and their structures are the same. Each cutting and pulling unit 3 includes a first track 31, a second track, two blades 34 with tool holders 33, a sleeve rod 35, a central rod 37, a first synchronization component and a limiting component.

[0048] The first track 31 is slidably connected to the second track 32 along the length direction of the first line hole 24. The second track is arranged on the mounting plate 1. The tool holders 33 of the two blades 34 are respectively slidably connected to the first track 31 vertically. The cutting edge of the blade 34 is V-shaped, which is convenient for the two blades 34 to cut a larger range of the outer skin of the wire connecting head during shearing cooperation. The first synchronization component includes a rotating rod 311 and two swing rods 312. The middle part of the rotating rod 311 is fixedly connected to the central rod 37. The two ends of the rotating rod 311 are respectively rotatably connected with swing rods 312. The end of the swing rod 312 away from the rotating rod 311 is rotatably connected to the tool holders 33 of the two blades 34 in one-to-one correspondence. When the central rod 37 and the rotating rod 311 rotate, the two blades 34 are driven to move synchronously and reversely on the first track 31 through the two swing rods 312.

[0049] The sleeve rod 35 is slidably connected to the second track 32 along the axial direction. A spiral guide groove 36 is provided on the sleeve rod 35. The outer diameter of the central rod 37 is adapted to the inner diameter of the sleeve rod 35. A column block 38 is provided on the central rod 37. The central rod 37 is inserted into the sleeve rod 35 and the column block 38 is located in the guide groove 36, so that a spiral sliding connection is realized between the central rod 37 and the sleeve rod 35. And a compression spring 320 is sleeved on the central rod 37. One end of the compression spring 320 abuts against the sleeve rod 35, and the other end abuts against the rotating rod 311. The end of the central rod 37 away from the sleeve rod 35 is rotatably connected to the first track 31. The end of the sleeve rod 35 away from the central rod 37 is an abutting end, and the abutting end can be in abutting and magnetic attraction cooperation with the second movable elbow 23, that is, a magnetic attraction member is provided between the abutting end and the second movable elbow 23, such as a magnet is embedded on the abutting end, and the second movable elbow 23 is made of magnetic material.

[0050] The function of the limiting component is to enable the center rod 37 to rotate first and then slide under the abutting and pushing of the sleeve rod 35 by the second movable elbow 23. As reflected on the two blades 34, the two blades 34 first close and then move along the second track. The limiting component specifically includes a limiting plate 39 fixedly connected to the second track 32 and a sliding rod 310 fixedly connected to any one of the tool holders 33. An L-shaped limiting groove is formed on the limiting plate 39. The L-shaped limiting groove specifically includes a first groove section 391 and a second groove section 392. The rear end of the first groove section 391 communicates with the lower end of the second groove section 392 to form an L shape. The first groove section 391 is opened along the length direction parallel to the first track 31, and the second groove section 392 is opened along the length direction parallel to the second track. The sliding rod 310 is slidably matched with the L-shaped limiting groove.

[0051] In the above technical solution, the second movable elbow 23 has completed the second bending of the connecting wire head in the first half of the second stroke. In the second half of the second stroke, the second movable elbow 23 can abut and squeeze the abutting end of the sleeve rod 35 of one of the cutting and pulling components, driving the sleeve rod 35 to continuously move along the second track for the third and fourth strokes. During the third stroke of the movement of the sleeve rod 35, the sleeve rod 35 generates a driving force on the column block 38 on the inner rod through the spiral side wall of the guide groove 36, so that the center rod 37, the synchronization component, the two tool holders 33, the sliding rod 310, the two blades 34 and the first track 31 have a tendency to move along the second track. However, since the sliding rod 310 is located in the first groove section 391, the first groove section 391 prevents the sliding rod 310 and the tool holder 33 from moving along the second track. Therefore, the driving force of the side wall of the guide groove 36 on the column block 38 can only drive the center rod 37 to rotate. The center rod 37 drives the rotating rod 311 to rotate. The rotating rod 311 drives the two tool holders 33 to move reversely on the first track 31 through the two swing rods 312, so that the two blades 34 close to each other to cut into the outer skin at both ends of the bent connecting wire head. When the blade 34 is about to contact the wire core, the cutting stops. At this time, the sliding rod 310 just slides along the first groove section 391 to the junction of the first groove section 391 and the second groove section 392.

[0052] In the fourth stroke of the movement of the sleeve rod 35, since the sliding rod 310 can no longer slide along the first groove section 391, the sleeve rod 35 can only push the center rod 37 to move along the second track. The center rod 37 drives the first synchronization component, the first track 31, the two tool holders 33, the sliding rod 310 and the two blades 34 to move along the second track together. The sliding rod 310 enters the second groove section 392. The two blades 34 pull out the cut outer skin section from the wire core of the connecting wire head in the state of cutting into the outer skin of the connecting wire head, so as to expose the wire core at the end of the connecting wire head, facilitating subsequent power connection operations.

[0053] A second synchronization component is arranged between the two cutting and pulling units 3. The second synchronization component includes a gear 314, a first rack 315 and a second rack 316. The gear 314 is rotatably connected to the mounting plate 1. The first rack 315 and the second rack 316 are parallel and meshed with each other face to face on the gear 314. The first rack 315 is fixedly connected to the sleeve rod 35 of one of the cutting and pulling units 3 through a first connecting rod 317. The second rack 316 is slidably connected to a sliding sleeve 319 on the sleeve rod 35 of the other cutting and pulling unit 3 through a second connecting rod 318. When the sleeve rod 35 of one of the cutting and pulling units 3 receives the abutting driving force of the second movable elbow 23, it will drive the corresponding first rack 315 to move. The first rack 315 drives the second rack 316 to move synchronously in the reverse direction through the gear 314, so as to drive the sleeve rod 35 of the other cutting and pulling unit 3 to move synchronously in the reverse direction. The function of the second synchronization component is to enable the sleeve rods 35 of the two cutting and pulling units 3 to move synchronously in the reverse direction, so that the two cutting mechanisms can operate simultaneously, realizing the simultaneous removal of the outer skins at both ends of the butt joint wire head.

[0054] The butt joint wire head traction and cutting mechanism is the upstream process of the wire head being bent by the wire head bending mechanism. Its function is to convey the long wire to the first wire hole 24 of the bending mechanism and cut the wire to form the butt joint wire head. The combination of the existing traction roller and the shear cutter can be used, which will not be elaborated here.

[0055] The above describes some exemplary embodiments of the present invention, and should not be construed as limiting the protection scope of the claims of the present invention. For those skilled in the art, the described embodiments can be modified in other different ways without departing from the spirit and scope of the present invention.

Claims

1. A wire terminal bending mechanism, comprising a mounting plate (1), characterized in that: Also includes: A fixed elbow (21) fixedly mounted on the mounting plate (1), and having a first wire hole (24) and a first wire groove (25) connected to each other; A first movable elbow (22) is slidably connected to the mounting plate (1) along the length direction of the first wire groove (25); a second wire groove (26) and a third wire groove (27) are provided on the first movable elbow (22); the second wire groove (26) and the first wire groove (25) are capable of being matched to form a circular second wire hole; A second movable elbow (23) is slidably connected to a sliding member (29) provided on the mounting plate (1) along the length direction of the third wire groove (27), and a fourth wire groove (28) is provided on the second movable elbow (23). The fourth wire groove (28) and the third wire groove (27) can be matched to form a circular third wire hole; A driving assembly, used to drive the first movable elbow (22) and the second movable elbow (23) to slide on the mounting plate (1) respectively; The mounting plate (1) is provided with a first slide groove (11), and the sliding member (29) is provided with a second slider (291). The sliding member (29) is slidably connected to the mounting plate (1) along the length direction of the first wire groove (25) through the sliding cooperation between the second slider (291) and the first slide groove (11). An elastic member is provided between the mounting plate (1) and the sliding member (29). The elastic member restores its deformation process to drive the second movable elbow (23) to slide closer to the fixed elbow (21). The first movable elbow (22) is provided with a first slide groove (11). A plug hole (216) is provided which is parallel to the third wire groove (27); an insertion rod (215) is fixedly connected to the second movable elbow (23); when the first movable elbow (22) slides to the plug hole (216) and aligns with the insertion rod (215), the second movable elbow (23) slides on the sliding member (29) to drive the insertion rod (215) to be inserted into the plug hole (216), so that when the first movable elbow (22) slides again, it can drive the second movable elbow (23) and the sliding member (29) to move along the first sliding groove (11).

2. The wire connection bending mechanism according to claim 1, characterized in that: The cross-sections of the first wire groove (25), the second wire groove (26), the third wire groove (27) and the fourth wire groove (28) are all semicircular.

3. The wire connection bending mechanism according to claim 1, characterized in that: The first wire groove (25) and the first wire hole (24) are perpendicular to each other, and the second wire groove (26) and the third wire groove (27) are perpendicular to each other.

4. The wire connection bending mechanism according to claim 1, characterized in that: The first movable elbow (22) has a first sliding block (217), and the first sliding block (217) is slidably connected in the first sliding groove (11).

5. The wire connection bending mechanism according to claim 1, characterized in that: The sliding member (29) has a sliding rail (292), the second movable elbow (23) has a second sliding groove (210), and the second sliding groove (210) is slidably sleeved on the sliding rail (292).

6. The wire connection bending mechanism according to claim 1, characterized in that: The driving assembly comprises a first driving unit for driving the first movable elbow (22) to slide on the mounting plate (1) and a second driving unit for driving the second movable elbow (23) to slide on the mounting plate (1).

7. The wire connection bending mechanism according to claim 6, characterized in that: The first drive unit comprises a first electric push rod (211), a seat of which is fixedly mounted on the mounting plate (1), and a power output end of which is fixedly connected to the first movable elbow (22).

8. The wire connection bending mechanism according to claim 6, characterized in that: The second drive unit comprises a second electric push rod (212), the seat of which is fixedly mounted on the slide rail (292) of the slide member (29), and the power output end of which is fixedly connected to the second movable elbow (23).

9. A wiring head making machine, characterized in that: It comprises the connecting wire bending mechanism described in any one of claims 1 to 8 and a cutting and pulling mechanism for stripping the two ends of the connecting wire.

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