Electric wire connecting head bending mechanism and electric wire connecting head manufacturing machine

Abstract

The invention discloses a connecting wire head bending mechanism and a connecting wire head manufacturing machine, and relates to the technical field of connecting wire head manufacturing, the connecting wire head bending mechanism comprises a mounting plate, a fixed elbow, a first movable elbow, a second movable elbow and a driving assembly, the fixed elbow is fixedly mounted on the mounting plate, and a first wire hole and a first wire groove which communicate with each other are formed in the fixed elbow; the first movable elbow is connected to the mounting plate in a sliding manner, and a second wire slot and a third wire slot which are communicated with each other are formed in the first movable elbow; the second movable elbow is connected to a sliding piece arranged on the mounting plate in a sliding manner; the driving assembly is used for driving the first movable elbow and the second movable elbow to slide on the mounting plate. The bending device is more convenient to use, the manufacturing process is more efficient, the electric wire head can be limited and guided in the bending process through the opening and closing time of the second wire hole and the third wire hole which are split, and therefore the manufactured electric wire head has the good bending form and accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of making a connection wire head, in particular to a connection wire head bending mechanism and a connection wire head making machine. Background Art

[0002] In the construction of power facilities, wire connectors are needed to connect modules, such as internal wiring of electronic equipment, connection and assembly of electrical components, fault inspection and repair, equipment upgrade and transformation, etc. According to the use requirements, wire connectors are divided into straight type and special type. Among the special type wire connectors, the "Z" type wire connector is the most widely used, especially for wiring connections in switch cabinets and meter boxes. Almost all of them are "Z" type wire connectors. The bend of the "Z" type wire connector is usually a right angle, and in a few cases it is an obtuse angle.

[0003] For example, the patent with announcement number CN218517605U discloses a wire and cable bending device, which includes a frame, a suspended plate is provided on the frame, the suspended plate is provided with waist-shaped holes in the left and right directions, and the waist-shaped holes are equipped with a number of positioning shafts that can adjust the position; an arc plate extends from one end of the suspended plate, a cylinder is provided between the center of the arc plate and the frame, the cylinder and the positioning shaft have the same diameter and the center of the cylinder is located on the same straight line, and a limit shaft is provided on the frame directly in front of the cylinder; a sleeve is sleeved on the cylinder, the sleeve is vertically fixedly connected to a rotating rod, and a bearing in contact with the arc plate is provided on the rotating rod.

[0004] Although the above patent can produce a variety of bending shapes of connecting wires, there are inconveniences in producing the "Z"-shaped connecting wires that are in greater demand. For example, the prior art of the above patent usually uses a bending mold to bend the connecting wire about 90°, and then flips the connecting wire 180° along the axis of the unbent part, and then performs a second bending to produce a "Z"-shaped connecting wire. The operation is not convenient enough and the efficiency needs to be improved. Summary of the invention

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

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wiring head bending mechanism, comprising a mounting plate, a fixed elbow, a first movable elbow, a second movable elbow and a driving assembly, wherein the fixed elbow is fixedly mounted on the mounting plate, and is provided with a first wire hole and a first wire groove which are connected; the first movable elbow is slidably connected to the mounting plate along the length direction of the first wire groove, and is provided with a second wire groove and a third wire groove which are connected, and the second wire groove and the first wire groove can be matched to form a circular second wire hole; the second movable elbow is slidably connected to a sliding member arranged on the mounting plate along the length direction of the third wire groove, and is provided with a fourth wire groove, and the fourth wire groove and the third wire groove can be matched 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] Furthermore, the sliding member is slidably connected to the mounting plate along the length direction of the first wire groove, and an elastic member is arranged between the second movable elbow and the sliding member. The process of the elastic member recovering its deformation drives the second movable elbow to slide close to the fixed elbow; a socket 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 overcomes the elastic force of the elastic member and slides until the socket is aligned with the plug rod, the second movable elbow slides on the sliding member to drive the plug rod to be inserted into the socket.

[0008] Furthermore, the cross-sections of the first wire groove, the second wire groove, the third wire groove and the fourth wire groove are all semicircular.

[0009] Furthermore, the first wire groove and the first wire hole are perpendicular to each other, and the second wire groove and the third wire groove are perpendicular to each other.

[0010] Furthermore, the mounting plate is provided with a first slide groove, the first movable elbow is provided with a first slider, the sliding member is provided with a second slider, and the first slider and the second slider are both slidably connected in the first slide groove.

[0011] Furthermore, the sliding member is provided with a sliding rail, the second movable elbow is provided with a second sliding groove, and the second sliding groove is slidably sleeved on the sliding rail.

[0012] Furthermore, 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] Furthermore, the first driving unit includes a first electric push rod, a base of which is fixedly mounted on the mounting plate, and a power output end of which is fixedly connected to the first movable elbow.

[0014] Furthermore, the second driving unit comprises a second electric push rod, a seat of which is fixedly mounted on the slide rail of the sliding member, and a power output end of which is fixedly connected to the second movable elbow.

[0015] The present invention also provides a wire joint making machine, comprising the above-mentioned wire joint bending mechanism and a cutting and pulling mechanism for stripping the two ends of the wire joint.

[0016] In the above technical scheme, the present invention provides a connection wire bending mechanism. After the connection wire is fed into and passes through the first wire hole of 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 to cooperate with the fixed elbow to bend the connection wire for the first time. The bent part of the connection wire is in the second wire hole formed by 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 to cooperate with the first movable elbow to bend the bent part of the connection wire again, thereby producing the required "Z"-shaped connection wire. The present invention is more convenient to use. There is no need to flip the connection wire 180° between the two bending operations, and the production process is more efficient. In addition, the opening and closing timing of the split second wire hole and the third wire hole can limit and guide the connection wire during the bending process, so that the produced connection wire has a good bending shape and accuracy.

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

[0018] In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0019] Figure 1 A schematic diagram of the structure of the wire terminal bending mechanism provided in the embodiment; Figure 2 A structural front view of a wire connection head bending mechanism provided in an embodiment; Figure 3 A rear view of the structure of the wire terminal bending mechanism provided in the embodiment; Figure 4 A schematic diagram of the structure of a fixed elbow provided in an embodiment; Figure 5 A schematic diagram of the structure of a first movable elbow provided in an embodiment; Figure 6 A schematic diagram of the structure of a second movable elbow provided in an embodiment; Figure 7 A schematic diagram of the structure of a sliding member provided in an embodiment; Figure 8 A schematic diagram of the structure of the wire end bending mechanism provided in the embodiment during the bending operation; Fig. 9A schematic diagram of the overall structure of a wiring head making machine provided in an embodiment; Fig.10 A rear view of the overall structure of the wiring head making machine provided in the embodiment; Fig.11 A schematic diagram of the structure of a cutting unit provided in an embodiment; Fig.12 A schematic structural diagram of a cutting unit from another perspective provided in an embodiment; Fig.13 A schematic diagram of the partial structure of a cutting unit provided in an embodiment.

[0020] Description of reference numerals: 1. Mounting plate; 11. First slide groove; 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 slide groove; 211. First electric push rod; 212. Second electric push rod; 213. Support rod; 214. Tension spring; 215. Insert rod; 216. Insert hole; 217. First slider; 3. Cutting unit; 31. First track; 32. Second track; 33. Tool holder; 34. Blade; 35. Sleeve rod; 36. Guide groove; 37. Center rod; 38. Column block; 39. Limiting plate; 391. First slot section; 392. Second slot section; 310. Sliding rod; 311. Rotating rod; 312. Rocker rod; 313. Locking bolt; 314. Gear; 315. First rack; 316. Second rack; 317. First connecting rod; 318. Second connecting rod; 319. Sliding sleeve; 320. Compression spring; 321. Protective cover. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] See also Figure 1-Figure 13 The embodiment of the present invention provides a connecting wire head making machine for making connecting wire heads, comprising a connecting wire head bending mechanism, a cutting and pulling mechanism for stripping both ends of the connecting wire head, and a mechanism for pulling and cutting the connecting wire head.

[0023] See also Figure 1-Figure 8The wiring 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 foundation. The fixed elbow 21 is fixedly mounted on the mounting plate 1 by a plurality of bolt pairs. A first wire hole 24 is vertically provided on the upper edge of the fixed elbow 21, and a first horizontal wire groove 25 is provided at the bottom of the fixed elbow 21. The first wire hole 24 is a through hole, and the bottom is connected to the first wire groove 25. The top inner opening is chamfered to form a trumpet mouth shape, which can facilitate the insertion of the wiring head into the first wire hole 24. The first wire hole 24 and the first wire groove 25 are rounded at the turning point, and the angle between the first wire hole 24 and the first wire groove 25 is the angle of the wiring head when it is bent for the first time.

[0024] A first slide groove 11 is provided on the mounting plate 1, and a first slider 217 is integrally formed on the back side of the first movable elbow 22. The first movable elbow 22 is slidably connected to the first slide groove 11 on the mounting plate 1 through the first slider 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 provided on one side of the first movable elbow 22, and a third wire groove 27 is provided on the other adjacent side. The second wire groove 26 and the third wire groove 27 are connected at the corner of the first movable elbow 22 and chamfered. The second wire groove 26 is parallel to the first wire groove 25. The angle between the third wire groove 27 and the second wire groove 26 is the angle of the second bending of the connection wire head. When the first movable elbow 22 slides, the second wire groove 26 can be matched with the first wire groove 25 to form a circular second wire hole.

[0025] The mounting plate 1 is provided with a sliding member 29, and the sliding member 29 has a sliding rail 292, which is parallel to the third wire groove 27. The second movable elbow 23 is provided with a second sliding groove 210, and the second movable elbow 23 is slidably mounted on the sliding 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. The second movable elbow 23 is provided with a fourth wire groove 28 on the side close to the fixed elbow 21, and 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 and the third wire groove 27 can be matched 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 head after being bent.

[0026] 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 in the above solution are all semicircular, 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.

[0027] There are 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 of the first electric push rod 211 is fixedly mounted 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 a power output end. The seat of the second electric push rod 212 is fixedly mounted on the slide rail 292 of the sliding member 29, and the inner rod of the second electric push rod 212 is fixedly connected to the second movable elbow 23 as a power output end.

[0028] The use of two electric push rods is only a preferred technical solution, and the two electric push rods can also be replaced by other drive components, such as two hydraulic cylinders, two air cylinders, two linear motors, etc., or a combination thereof, such as a combination of an electric push rod and a linear motor. In summary, the drive component includes two units, namely, a first drive unit drives the first movable elbow 22 to slide, and a second drive unit drives the second movable elbow 23 to slide.

[0029] When the first wire hole 24 and the first wire groove 25 are arranged perpendicular to each other, the wire connector is bent into a right angle for the first time (the bending part has an arc, and the two sections of the bending form a right angle); when the first wire hole 24 and the first wire groove 25 are arranged at an obtuse angle, the wire connector is bent into an obtuse angle for the first time; when the third wire groove 27 and the second wire groove 26 are arranged perpendicular to each other, the wire connector is bent into a right angle for the second time; when the third wire groove 27 and the second wire groove 26 are arranged at an obtuse angle, the wire connector is bent into an obtuse angle for the second time. Usually, the first wire hole 24 and the first wire groove 25 are arranged perpendicular to each other, and the third wire groove 27 and the second wire groove 26 are arranged perpendicular to each other.

[0030] 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 connecting wire 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 to cooperate with the fixed elbow 21 to bend the connecting wire head for the first time, and the bent part of the connecting wire head is in the second wire hole formed by the second wire groove 26 and the first wire groove 25, and 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 to cooperate with the first movable elbow 22 to bend the bent part of the connecting wire head again, and the second bent part is in the third wire hole formed by the fourth slide groove and the third slide groove, thereby producing the required "Z"-shaped connecting wire head. This embodiment is only used for batch production of "Z"-shaped connecting wire heads with a specific length a in the middle part of the two bending parts of the connecting wire heads. The effect achieved is that the use is more convenient, and the connecting wire head does not need to be turned 180 degrees between the two bending operations, and the production process is more efficient; and the opening and closing timing of the split second wire hole and the third wire hole can limit and guide the connecting wire head during the bending process, so that the produced connecting wire head has a good bending shape and accuracy.

[0031] In another embodiment, in order to meet the different requirements of the length a of the middle part of the two bends of the "Z"-shaped wiring head, the design is as follows: the sliding member 29 includes a slide rail 292 and a second slider 291, and the sliding member 29 is slidably connected to the first slide groove 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 on the second slider 291 through the support rod 213, and another hanging ear is screwed or welded on the back side of the mounting plate 1. A tension spring 214 is hooked between the two hanging ears, and the tension spring 214 can be replaced by other elastic parts, such as a coil spring or an elastic rope. The elastic force of the tension spring 214 or other elastic parts pulls the second movable elbow 23 on the sliding part 29 toward 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 socket 216 is provided on the first movable elbow 22, and the socket 216 is parallel to the third wire groove 27; a plug rod 215 is fixedly connected to the second movable elbow 23, and the plug rod 215 is parallel to the fourth wire groove 28 and the plug rod 216, and the plug rod 215 is adapted to the plug rod 216.

[0032] During operation, at first, the second movable elbow 23 makes the insertion rod 215 contact with the fixed elbow 21 under the elastic force of the tension spring 214. After the connecting wire head is sent 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 to cooperate with the fixed elbow 21 to bend the connecting wire head for the first time. The bent part of the connecting wire head is in the second wire hole formed by the second wire groove 26 and the first wire groove 25. The first electric push rod 21 The first movable elbow 22 is pushed until the insertion hole 216 on the first movable elbow 22 is aligned with the insertion rod 215 and stops; 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. In the first stroke, the second movable elbow 23 has not yet contacted the connection wire head, but the insertion rod 215 is first inserted into the insertion hole 216. The insertion and matching of the insertion rod 215 and the insertion hole 216 ensures that the first movable elbow 22 and the second movable elbow 23 are aligned along the length direction of the first wire groove 25. The first movable elbow 22 is driven by the first electric push rod 211 to slide along the first slide groove 11, and the second movable elbow 23 and the sliding member 29 are driven to move along the first slide groove 11 by the plug-in cooperation of the plug hole 216 and the plug rod 215. The tension spring 214 is also stretched to store energy, so that the length a between the first bending point of the connecting wire head and the subsequent second bending point can be flexibly adjusted. The length a directly reflects 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. In the second stroke, the second movable elbow 23 cooperates with the first movable elbow 22 to bend the connecting wire head for the second time, and the second bent part is in the third wire hole formed by the fourth slide groove and the third slide groove, so as to produce the required "Z"-shaped connecting wire heads of various sizes. This embodiment, on the basis of convenience and high efficiency in the manufacturing process, can also freely adjust the length a between the two bends of the connecting wire head according to needs, so as to flexibly adapt to the depth of the upper and lower (or left and right) two connecting elements in the front-to-back direction, and has better applicability.

[0033] After the current wiring end is bent, the second electric push rod 212 first drives the second movable elbow 23 and the plug rod 215 back to the initial state, and the plug rod 215 is separated from the socket 216, and the elastic potential energy accumulated in the tension spring 214 is released, so that the second movable elbow 23 and the sliding member 29 slide along the first slide groove 11 close to 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 back to the initial state.

[0034] See also Figure 9-13The cutting mechanism is a downstream process after the connection wire head is bent by the bending mechanism, and is used to strip the two ends of the connection wire head. The cutting mechanism specifically includes a cutting unit 3 arranged on the mounting plate 1 and another cutting unit 3 arranged on the movable plate 12. The mounting plate 1 is provided with a protective cover 321 for covering and protecting the cutting unit 3. The movable plate 12 is slidably arranged on the mounting plate 1 along the length direction of the first slide groove 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 spacing between the two cutting units 3, so that the two cutting units 3 can adapt to the different lengths a between the first bending point of the connection wire head and the subsequent second bending point. The two cutting units 3 are respectively used to cut the outer skin of the two ends of the connection wire head to expose the wire core. The structures of the two are consistent. Each cutting unit 3 includes a first track 31, a second track, two blades 34 with a knife holder 33, a sleeve rod 35, a center rod 37, a first synchronization component and a limit component.

[0035] The first track 31 is slidably connected to the second track 32 along the length direction of the first wire hole 24. The second track is set on the mounting plate 1. The tool holders 33 of the two blades 34 are respectively vertically slidably connected to the first track 31. The blades 34 are V-shaped, which facilitates the two blades 34 to cut the outer skin of the butt wire head to a larger range when shearing. 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 center rod 37. The two ends of the rotating rod 311 are respectively rotatably connected to the 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 one by one. When the center rod 37 and the rotating rod 311 rotate, the two blades 34 are driven to move synchronously in the opposite direction on the first track 31 through the two swing rods 312.

[0036] The sleeve rod 35 is axially slidably connected to the second track 32. The sleeve rod 35 is provided with a spiral guide groove 36. The outer diameter of the center rod 37 is adapted to the inner diameter of the sleeve rod 35. The center rod 37 is provided with a column block 38. The center rod 37 is inserted in the sleeve rod 35 and the column block 38 is located in the guide groove 36, so that the center rod 37 and the sleeve rod 35 are spirally slidably connected. In addition, a compression spring 320 is sleeved on the center rod 37, one end of the compression spring 320 abuts the sleeve rod 35, and the other end abuts the rotating rod 311. The end of the center rod 37 away from the sleeve rod 35 is rotatably connected to the first track 31, and the end of the sleeve rod 35 away from the center rod 37 is the abutment end, which can be abutted and magnetically matched with the second movable elbow 23, that is, a magnetic attraction member is provided between the abutment end and the second movable elbow 23, such as a magnet embedded in the abutment end, and the second movable elbow 23 is made of magnetic material.

[0037] The function of the limiting assembly is to enable the sleeve rod 35 to rotate first and then slide under the push of the second movable elbow 23, which is reflected in the two blades 34 that the two blades 34 are first closed and then move along the second track. The limiting assembly specifically includes a limiting plate 39 fixedly connected to the second track 32 and a slide bar 310 fixedly connected to any tool holder 33. The limiting plate 39 is provided with an L-shaped limiting groove, which specifically includes a first groove section 391 and a second groove section 392. The rear end of the first groove section 391 and the lower end of the second groove section 392 are connected to each other to form an L shape. The first groove section 391 is opened along a length direction parallel to the first track 31, and the second groove section 392 is opened along a length direction parallel to the second track. The slide bar 310 slides with the L-shaped limiting groove.

[0038] In the above technical solution, the second movable elbow 23 has completed the second bending of the wire connection head in the first 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 in the second half of the second stroke, driving the sleeve rod 35 to continuously move the third stroke and the fourth stroke along the second track. In the third stroke 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 synchronous component, the two tool holders 33, the slide rod 310, the two blades 34 and the first track 31 have a tendency to move along the second track, but due to When the slide bar 310 is in the first slot section 391, the first slot section 391 prevents the slide bar 310 and the tool holder 33 from moving along the second track. Therefore, the pushing force of the side wall of the guide slot 36 on the column block 38 can only drive the center rod 37 to rotate, and the center rod 37 drives the rotating rod 311 to rotate. The rotating rod 311 drives the two tool holders 33 to move in the opposite direction on the first track 31 through the two rocker rods 312, so that the two blades 34 close together to cut into the outer skin of the two ends of the bent connection wire head. When the blades 34 are about to contact the wire core, the cutting stops. At this time, the slide bar 310 just slides along the first slot section 391 to the junction of the first slot section 391 and the second slot section 392.

[0039] In the fourth stroke of the movement of the sleeve rod 35, since the slide 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, and the center rod 37 drives the first synchronization component, the first track 31, the two tool holders 33, the slide rod 310 and the two blades 34 to move along the second track. The slide rod 310 enters the second groove section 392, and the two blades 34 remove the cut outer skin segment from the wire core of the wire connector by cutting into the outer skin of the wire connector, thereby exposing the wire core at the end of the wire connector, which is convenient for subsequent power connection operations.

[0040] A second synchronization component is provided between the two cutting and drawing units 3, and 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, and the first rack 315 and the second rack 316 are parallel and face-to-face meshed on the gear 314. The first rack 315 is fixedly connected to the sleeve rod 35 of one of the cutting and drawing units 3 through the first connecting rod 317, and the second rack 316 is slidably connected to the sliding sleeve 319 on the sleeve rod 35 of the other cutting and drawing unit 3 through the second connecting rod 318. When the sleeve rod 35 of one of the cutting and drawing units 3 is subjected to the abutment and pushing force of the second movable elbow 23, the corresponding first rack 315 will be driven to move, and the first rack 315 drives the second rack 316 to move synchronously in the reverse direction through the gear 314, thereby driving the sleeve rod 35 of the other cutting and drawing 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 opposite direction, so that the two cutting and pulling mechanisms can operate simultaneously to achieve the simultaneous removal of the outer skins at both ends of the butt-jointed wire heads.

[0041] The traction and cutting mechanism for the butt-jointed wire heads is an upstream process of the butt-jointed wire heads being bent by the bending mechanism. Its function is to transport the long wires to the first wire holes 24 of the bending mechanism and to cut the wires to form butt-jointed wire heads. The existing traction roller and scissor-type cutter combination can be used, which will not be described in detail here.

[0042] The above describes some exemplary embodiments of the present invention, which should not be understood as limiting the scope of protection 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 is used to drive the first movable elbow (22) and the second movable elbow (23) to slide on the mounting plate (1) respectively.

2. The wire connection bending mechanism according to claim 1, characterized in that: The sliding member (29) is slidably connected to the mounting plate (1) along the length direction of the first wire groove (25); an elastic member is arranged between the second movable elbow (23) and the sliding member (29); the elastic member recovers its deformation and drives the second movable elbow (23) to slide close to the fixed elbow (21); a plug hole (216) parallel to the third wire groove (27) is provided on the first movable elbow (22); an insertion rod (215) is fixedly connected to the second movable elbow (23); when the first movable elbow (22) overcomes the elastic force of the elastic member and slides to the plug hole (216) to align 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).

3. 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.

4. 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.

5. The wire connection bending mechanism according to claim 2, characterized in that: The mounting plate (1) is provided with a first slide groove (11), the first movable elbow (22) is provided with a first slider (217), the sliding member (29) is provided with a second slider (291), and the first slider (217) and the second slider (291) are both slidably connected in the first slide groove (11).

6. 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).

7. 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).

8. The wire connection bending mechanism according to claim 7, 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).

9. The wire connection bending mechanism according to claim 7, 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).

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

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