Multifunctional manual terminal machine capable of continuously stripping, twisting and crimping wires

Abstract

The invention discloses a multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping, which is formed by expanding a traditional terminal crimping clamp, a circular clamp head is additionally arranged in the length direction of the multifunctional manual terminal machine, and a plurality of jaws are further arranged at the circumferential positions of the two clamp heads; in addition, the teeth in the center jaw of the new plier head are divided into a front part and a rear part, the front teeth are used for clamping wires, and the tooth openings of the rear teeth are made into cutting edges so as to be used for cutting wire skins. Power of the new tong head is transmitted through the connecting rod mechanism. And the clamp head device is used for clamping a wire end extending into the jaw of the new clamp head, can rotate under the action of the driving unit and is far away from the second jaw, so that a wire sheath is screwed off, and a stripped wire core is twisted into one strand. The working efficiency can be greatly improved, and the labor intensity is relieved.

Description

Technical Field

[0001] The invention belongs to the field of wiring tools for automated non-standard equipment control cabinets, in particular to a multifunctional manual terminal machine capable of continuously stripping, twisting and crimping wires. Background Art

[0002] For many years, non-standard automation equipment has been widely used. Almost every one of these devices is customized according to the specific production needs of customers. Unlike standard equipment, they cannot be mass-produced, so the control cabinets of these non-standard equipment and the control lines distributed throughout the equipment are different. Therefore, the wiring work cannot be carried out in a mass production manner, and can only be wired one by one. In the process, single-core soft wires are often used in the control line, and its wire ends need to be crimped with UT fork-type cold-pressed terminals (hereinafter referred to as U-shaped terminals) or European VE tube-type cold-pressed terminals (hereinafter referred to as tube-shaped terminals). At present, the widely used method is still to manually strip, twist, put on terminals, and crimp with simple tools such as wire strippers and wire crimpers. This method is slow, inefficient, and labor-intensive. Figure 1-Figure 4 The traditional HCS8 tube terminal crimping pliers have a single function. Although there have been related automatic or semi-automatic terminal crimping machine products on the market for a long time, these crimping machines are not only expensive but also only suitable for large-scale crimping of single-specification wires. Therefore, for the manual wiring of automated non-standard equipment, efficient, high-quality and low-cost tools are needed to improve work efficiency and reduce labor intensity. Summary of the invention

[0003] The purpose of the present invention is to provide a multifunctional manual terminal machine which can continuously strip, twist and crimp wires, is easy to operate, has low cost, can greatly improve work efficiency and reduce labor intensity.

[0004] The technical solution to achieve the purpose of the present invention is:

[0005] A multifunctional manual terminal machine capable of continuously stripping, twisting and crimping wires, comprising a movable handle, a static handle, a reset spring and a first clamp head; the first clamp head comprises a first fixed layer and a first driving layer arranged in the first fixed layer; a first jaw is arranged in the middle of the first clamp head; a plurality of teeth rotatably connected to the first fixed layer are arranged in the first jaw; and the first clamp head is fixed on a machine frame;

[0006] A second clamp head is provided in front of the first clamp head, a second jaw is provided in the middle of the second clamp head, and a plurality of teeth rotatably connected to the second fixed layer are provided in the second jaw, for clamping the wire and cutting the outer skin of the wire; the second clamp head includes a second fixed layer and a second driving layer arranged in the second fixed layer, the second driving layer includes a second front driving layer, a second middle driving layer and a second rear driving layer; the teeth in the second jaw include front teeth and rear teeth, the front teeth are driven by the second middle driving layer, and the rear teeth are driven by the second rear driving layer; the second driving layer is connected to the first driving layer through a connecting rod mechanism, and when the first driving layer rotates, the second driving layer is also driven to rotate; jaws are provided between the second front driving layer and the second fixed layer, and between the first driving layer and the first fixed layer;

[0007] A chuck device is also provided on the rear side of the second jaw for clamping the wire end inserted into the second jaw, comprising a fixed part and a movable part that can rotate relative to the fixed part, and a reset part arranged between the fixed part and the movable part. The chuck device is provided with a jaw, and a plurality of wire clamping teeth are arranged in the jaw for clamping the wire skin; the chuck device can rotate and move away from the second jaw under the action of the driving unit, unscrew the wire skin, and twist the stripped wire core into a strand.

[0008] Compared with the prior art, the present invention has the following significant advantages:

[0009] (1) The wiring personnel can hold the wire in one hand and the handle in the other hand to continuously complete the actions of cutting, stripping, twisting, terminal installation and crimping. The whole process is integrated in one go, which can greatly improve work efficiency and reduce labor intensity.

[0010] (2) Double-wire tubular terminals can be crimped, that is, two wires are stripped, twisted, and installed on double-wire tubular terminals at the same time, and then crimped.

[0011] (3) You can hold several, ten or even more wires in your hand, strip and twist them, put them on terminals one by one, and then crimp them one by one to make them firm. This can further improve work efficiency.

[0012] (4) The stripped wire core can be easily folded in half and compacted.

[0013] (5) Simple structure, reliable and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the structural diagram of the traditional square-mouth HCS8 tube-type terminal crimping pliers.

[0015] Figure 2 This is the internal structure diagram of the traditional square-mouth HCS8 tube-type terminal crimping pliers.

[0016] Figure 3The traditional square-mouth HCS8 tube-type terminal crimping pliers are in the downward pressing state. Figure 1 .

[0017] Figure 4 The traditional square-mouth HCS8 tube-type terminal crimping pliers are in the downward pressing state. Figure 2 .

[0018] Figure 5 It is a front view of an embodiment of the present invention.

[0019] Figure 6 It is a left rear view of an embodiment of the present invention.

[0020] Figure 7 It is a top view of the embodiment of the present invention with the outer shell removed.

[0021] Figure 8 It is a left rear view of the embodiment of the present invention with the outer shell removed.

[0022] Fig. 9 It is a front view of the combination pliers according to an embodiment of the present invention.

[0023] Fig.10 This is a disassembly diagram of the combination pliers according to an embodiment of the present invention.

[0024] Fig.11 It is a left rear view of the wire twisting device according to an embodiment of the present invention.

[0025] Fig.12 This is a disassembly diagram of a wire twisting device according to an embodiment of the present invention.

[0026] Fig.13 This is a disassembly diagram of a chuck according to an embodiment of the present invention.

[0027] Fig.14 This is a diagram of a power device according to an embodiment of the present invention.

[0028] Fig.15 This is a diagram of a magazine rack according to an embodiment of the present invention.

[0029] Fig.16 A diagram of a magazine according to an embodiment of the present invention.

[0030] Fig.17 This is a diagram of magazine docking according to an embodiment of the present invention.

[0031] Fig.18 Schematic diagram of the arrangement of terminals in a magazine according to an embodiment of the present invention.

[0032] Fig.19 It is the driving structure of the second clamp. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "setting",

[0037] "Installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present embodiment is a multifunctional manual terminal machine that can continuously strip, twist and crimp wires, which is expanded from the traditional HCS8 tubular terminal crimping pliers. It adds a circular pliers head in the length direction, and the distance between the new pliers head and the original pliers head is about 1 cm. Multiple jaws are also set at the circumferential position of the two pliers heads. In addition, the teeth in the center jaws of the new pliers head are divided into two parts, front and back. The front teeth are used to clamp the wire, and the teeth of the back teeth are made into blades so they are used to cut the wire skin. The power of the new pliers head is transmitted through levers and connecting rods. That is, a metal strip is extended from the bottom of the three layers of movable parts in the middle of the two pliers heads on one side of the static handle as a lever, and then the levers of the corresponding layers are connected with connecting rods. One end of each of the two connecting rods is also equipped with a spring for adjusting the clamping force of the front teeth and the back teeth.

[0039] Figure 1-Figure 4 The invention is a traditional square-mouth HCS8 tubular terminal crimping pliers, which is provided with a movable handle 100, a static handle 101, a reset spring 102, teeth 103, a clamp head 104, a front fixed layer 105, a driving layer, a rear fixed layer 109, and an adjuster 111; the driving layer is arranged between the front fixed layer 105 and the rear fixed layer 109, and can rotate between the two, and the driving layer has a three-layer structure, including a front driving layer 106, an intermediate driving layer 107 and a rear driving layer 108; ears 110 are arranged at the rear ends of the front driving layer 106, the intermediate driving layer 107 and the rear driving layer 108, and are rotatably connected to the movable handle 100 through an eccentric shaft 120, and an adjuster 111 is arranged at the end of the eccentric shaft 120, and the eccentric shaft 120 can change the torque of the driving layer, and when the adjuster 111 fixes the eccentric shaft 120 at a corresponding angle, the force of the jaws can be changed. A small paddle 122 and a floating fulcrum 124 are rotatably connected in the movable handle 100. The rear end of the small paddle 122 is connected to the movable handle 100 through a spring, and a small protrusion 121 is provided at the front end to cooperate with the small teeth 123 at the rear end of the floating fulcrum 124. An elastic support 125 is provided in the static handle 101, and the floating fulcrum 124 cooperates with the elastic support 125. The floating fulcrum can allow the movable handle 100 to be pressed to the bottom and not stuck in the middle. The front fixed layer 105, the driving layer and the rear fixed layer 109 are provided with jaws, and a plurality of teeth 103 are provided in the jaws. The teeth 103 are rotatably connected to the front and rear fixed layers 105 and 109 through a rotating shaft. A reset spring 102 is provided between the driving layer and the static handle 101. When the movable handle 100 is pressed down, the driving layer is driven to rotate, and the driving layer drives the teeth 103 to rotate in the jaws, and the four teeth 103 will gather toward the middle, and at the same time, the small teeth 123 will push the small protrusion 121 upward. At this time, the movable handle 100 can only be pressed down but cannot be lifted up, unless the small paddle 122 is pushed to the right by hand to release the small teeth 123. When the movable handle 100 is fully pressed to the bottom, the small teeth 123 will be disengaged from the small protrusion 121 (such as Figure 4As shown in the figure, the movable handle 100 can be lifted up under the action of the return spring 102. This design is to allow the user to stop and rest in the middle when crimping a large terminal, and also to ensure that the terminal is pressed to the bottom when crimping the terminal.

[0040] Example 1

[0041] Figure 5-Figure 6 shows the overall appearance of the embodiment, Figure 7-Figure 8 The overall structure of the embodiment is shown. The multifunctional manual terminal machine capable of continuously stripping, twisting and crimping terminals comprises a frame 1, on which a special combination pliers 2 with a plurality of jaws is fixed. A wire twisting device 3 is also fixed on the frame, which is arranged at the right rear of the combination pliers 2. The frame 1 also has a manual mechanical power device 4 for providing power to the wire twisting device 3.

[0042] The combination pliers 2 of this embodiment are extended from the traditional HCS8 tube-type terminal crimping pliers. The jaws of this traditional HCS8 tube-type terminal crimping pliers usually have two styles: four-sided and six-sided. This embodiment uses the four-sided style for illustration. Figure 1 As shown. For the traditional HCS8 tube terminal crimping pliers, the following parts and functions may be mentioned below. From the periphery of the circular pliers head 104, it has a five-layer structure, and the thickness of each layer is equal. The entire front layer is the front fixed layer 105, the entire rear layer is the rear fixed layer 109, and the three middle layers from front to back are the front drive layer 106, the middle drive layer 107, and the rear drive layer 108. Each drive layer has an ear 110 for transmitting power. When the movable handle 100 is pressed, the power will be transmitted to the three drive layers (106, 107, 108) through the ear 110, and the drive layer can simultaneously drive the four teeth 103 to rotate to achieve the effect of crimping. When the movable handle 100 is released, the return spring 102 can open the movable handle 100 and the four teeth 103.

[0043] Fig. 9 The front view of the combination pliers 2 of this example is shown. The combination pliers 2 is Figure 1The crimping pliers shown in the figure are expanded from the base. It has an additional circular clamp head 213 (hereinafter referred to as the second clamp head), and the distance between the second clamp head 213 and the original clamp head 215 (hereinafter referred to as the first clamp head, corresponding to the circular clamp head 104 of the HCS8 tube terminal crimping pliers mentioned above) is about 1 cm. A plurality of jaws are also set at their circumferential positions, among which jaws 214, jaws 212, and jaws 209 are three crimping openings of different sizes for U-shaped terminals, jaw 210 is a folding opening for the wire core, and jaw 208 is a wire cutting opening. In addition, the first jaw 205 set in the first clamp head 215 is the original crimping opening, and the second jaw 211 set in the second clamp head 213 is a opening for clamping the wire and cutting the outer skin. A connecting rod mechanism is provided between the driving layer of the second pliers 213 and the driving layer of the first pliers 215, and the power of pressing the movable handle 200 downward is transmitted to the driving layer of the second pliers 213 through the driving layer of the first pliers 215 and the connecting rod mechanism. The connecting rod mechanism includes a first lever 203 arranged at the lower end of the first driving layer, a second lever 207 arranged at the lower end of the second driving layer, and a movable connecting rod group 206 to achieve transmission. The movable connecting rod group 206 also has two springs 204. The combination pliers 2 is fixed on the frame 1. When the movable handle 200 is not subjected to force, due to the pulling force of the reset spring 202 arranged between the first driving layer and the static handle 201, the movable handle 200 will automatically lift up, and all the jaws will open. When the movable handle 200 is pressed down by hand, all the jaws will close. The movable connecting rod group 206 includes a first connecting rod 256, a second connecting rod 266 and a third connecting rod 268.

[0044] The fixing layer of the second clamp head 213 and the first clamp head 215 can be a split structure or an integrated structure. Fig.10 As shown, the fixing layers of the second clamp head 213 and the first clamp head 215 of this embodiment adopt an integrated structure, having a common front fixing layer 244 and a rear fixing layer 272; the first clamp head 215 and the second clamp head 213 are respectively provided with a first driving layer and a second driving layer. The first driving layer can adopt a one-layer integral structure or a three-layer structure. When the one-layer integral structure is adopted, the first lever 203 is directly arranged at the lower end of the first driving layer; when the first driving layer adopts a three-layer structure, the first lever 203 is also arranged in three layers, and is respectively arranged at the lower ends of the three driving layers of the first driving layer. The second lever 207 includes three levers respectively arranged at the lower ends of the three driving layers of the second driving layer.

[0045] When the first driving layer adopts a three-layer structure, the first driving layer includes a first front driving layer 246, a first intermediate driving layer 271, and a first rear driving layer 270; the second driving layer includes a second front driving layer 257, a second intermediate driving layer 267, and a second rear driving layer 269; a first connecting rod 256 is hinged between the first front driving layer 246 and the second front driving layer 257 to transmit power; a second connecting rod 266 is hinged between the first intermediate driving layer 271 and the second intermediate driving layer 267 to transmit power; a third connecting rod 268 is hinged between the first rear driving layer 270 and the second rear driving layer 269 to transmit power; the first connecting rod 256 can make the two first front driving layers 246 and the second front driving layer 257 move synchronously. The second connecting rod 266 and the third connecting rod 268 have the same structure, both including two slipknot screws, a double-through hexagonal stud 265, a round head long screw 254, a spring 253, and a round head short screw 263. Taking the second connecting rod 266 as an example, it has two slipknot screws 252 and 264, which are screwed on the corresponding levers (i.e., the levers at the lower ends of the first intermediate drive layer 271 and the second intermediate drive layer 267). There is a double-pass hexagonal stud 265 between the two slipknot screws. A round-headed long screw 254 is inserted into the spring 253 and then into the round hole at the head of the left slipknot screw 252 and screwed into the double-pass hexagonal stud 265. In addition to fixing the spring 253, the long screw 254 can also adjust the elastic force of the spring 253. A round-headed short screw 263 is also screwed into the double-pass hexagonal stud 265 through the right slipknot screw 264. Since the slipknot screws 252 and 264 are not screwed to the lever and can rotate relative to the lever, the second connecting rod 266 can transmit power well. The difference is that when the movable handle 200 lifts the second connecting rod 266 and moves to the right, the second connecting rod 266 can make the first intermediate driving layer 267 and the second intermediate driving layer 271 connected thereto rotate synchronously, while when the second connecting rod 266 moves to the left, the first intermediate driving layer 267 encounters resistance and does not rotate synchronously due to the spring 253. Similarly, the third connecting rod 268 is in the same situation.

[0046] The teeth in the first jaw 205 of the corresponding first pliers head 215, and the teeth in the second jaw 211 of the corresponding second pliers head 213 are rotatably connected to the front and rear fixed layers 244 and 272 via a rotating shaft. A plurality of conventional teeth 242 (the same as the existing crimping pliers) are provided in the corresponding first jaw 205, and the plurality of teeth in the corresponding second jaw 211 are divided into front teeth 250 and rear teeth 255, and the front and rear teeth are divided from the same teeth as the teeth 242. The longitudinal division is located at two-thirds of the thickness of the teeth 242, where the front teeth 250 are thick and the rear teeth 255 are thin. A layer is also cut off from the tail 251 of the front teeth 250 (the cut thickness is the same as the second front drive layer 257), forming an arc surface, such as Fig.19As shown, it can support the normal rotation in the inner hole of the second front drive layer 257. The second front drive layer 257 cannot drive the front teeth 250 to rotate, and the front teeth 250 are only driven by the second intermediate drive layer 267. The rear teeth 255 are only driven by the rear drive layer 269, and the mouth of the rear teeth 255 is made into a blade. When the four rear teeth 255 are clamped, the four blades can cut the outer skin of the wire at the same time, and the four front teeth 250 will clamp the wire at this time, which creates conditions for the peeling and twisting actions of the wire twisting device 3. The force of the front teeth 250 and the rear teeth 255 to clamp and cut the wire is adjusted respectively by the springs 253 at the heads of the second connecting rod 266 and the third connecting rod 268, and can also be adjusted as a whole by the regulator 241 (corresponding to the regulator 111 of the existing HCS8 tube-type terminal crimping pliers) set at the end of the eccentric shaft.

[0047] like Fig.19 As shown, R is the radius of the inner hole of the second front drive layer 257, l is the distance from the axis of the front teeth 250 to the center of the circle, r is the radius of the arc surface on the front teeth 250, and R=l+r. h is the thickness of the arc surface of the front teeth 250, H is the thickness of the second front drive layer 257, and H=h. During the transmission process, the front teeth 250 rotate at a small angle around the rotation axis, and the second front drive layer 257 side rotates with the arc surfaces of the four front teeth 250 as support.

[0048] The first front drive layer 246 and the second front drive layer 257 have relative motion with the front fixed layer 244, so some jaws can be set by using this point. The right half 243, 245, 248 of multiple U-shaped crimping jaws are set on the front fixed layer 244, and the thickness is twice that of the first front fixed layer 244, and the thickness increases in the backward direction (drive layer direction). On the corresponding first front drive layer 246 and the second front drive layer 257, the corresponding left half 262, 261, 259 of multiple U-shaped crimping jaws are set, and the thickness is also twice that of the drive layer. Their thickness increases forward, so that their left and right parts can be fully engaged. In addition, the right half 249 of the folding line jaw 210 is 3 times the thickness of the front fixed layer, with a V-shaped groove in the middle. The left part 260 of the folding line jaw 210 is the same thickness as the second front drive 257 layer, and the right side is also V-shaped, and this V-shaped part is engaged with the V-shaped groove of the right half 249. The front blade 247 of the jaw 208 is detachable, and is fixed to the first front fixing layer 244 by screws, and its back side is on the same plane as the back side of the first front fixing layer 244, and the corresponding rear blade 258 is connected to the second front driving layer 257, and has the same thickness as the second front driving layer 257. The front blade 247 and the rear blade 258 are combined into a jaw 208, and the jaw 208 is actually a small pair of scissors. The detachable front blade 247 is easy to replace and also easy to make some fine adjustments.

[0049] like Figure 11-13As shown, the wire twisting device 3 has three seats, namely a screw seat 341, a power shaft seat 334, and a coil spring seat 332, which are installed on the frame 1 in sequence.

[0050] The chuck device 320 has a chuck mouth 342, and after the power is transmitted by the power unit and the transmission unit, the opening and closing of the chuck mouth 342 is realized. The transmission unit can also drive the chuck device 320 to move axially under the drive of the power unit.

[0051] like Fig.13 As shown. The chuck device 320 is composed of a front panel 360, a wire clamping tooth 361, a driving member 362, a front cover plate 363, a limit pin 364, a rear cover plate 366, a rotating plate 368, a rear panel 369, a reset spring 344, a small fixed pulley 370, a movable pulley 371, and a fixed pulley 372. These components are assembled together by corresponding screws to form a chuck device 320. Between the front panel 360 and the front cover plate 363 are the driving plate 362 and the wire clamping tooth 361. The former two play a role of limiting and fixing the latter two. A jaw is provided in the center of the front panel 360 and is fixed to the front cover plate 363. A rotatable driving plate 362 is provided between the two. Multiple wire clamping teeth 361 are located in the jaw, and are rotatably connected to the front panel 360 and the front cover plate 363 through a rotating shaft, and cooperate with the driving plate 362. The driving plate 362 rotates to drive the multiple wire clamping teeth 361 to close. The rotating plate 368 is located between the rear panel 369 and the rear cover 366. The rear panel 369 and the rear cover 366 are fixed to each other. The rear panel 369 and the rear cover 366 are provided with inner holes and connected to the screw rod 321 provided with a through hole. A rotating plate 368 capable of rotation is provided between the two.

[0052] The front panel 360 has two ears 373 and 374, and the driving member 362, the rotating plate 368, and the rear panel 369 also have two ears. Through these ears, the rotating parts are finally connected together, and the non-rotating parts are connected together, and the whole is divided into two parts, namely, the movable part and the fixed part. That is, the front panel 360 and the rear panel 369 are fixedly connected together as the fixed part; the driving member 362 and the rotating plate 368 are fixedly connected together as the movable part.

[0053] Since the present embodiment adopts a pulley block as the power transmission unit inside the chuck device 320, a fixed pulley 372 is connected to one ear connecting the front panel 360 and the rear panel 369; a movable pulley 371 is connected to one ear connecting the driving member 362 and the rotating plate 368; a reset spring 344 (as a reset part between the movable part and the fixed part) is arranged between the other ear connecting the front panel 360 and the rear panel 369 and the other ear connecting the driving member 362 and the rotating plate 368. At the same time, a small fixed pulley 370 is arranged on the inner side of the rear cover plate 366, and the traction line 300 passing through the screw rod is wound around the fixed pulley 372 and the movable pulley 371 in sequence after passing through the small fixed pulley 370 and then fixed on the front panel 360. Two sockets are also arranged on the inner side of the rear cover plate 366, and a plurality of jacks 367 and slots 365 are arranged on the two sockets along the axial direction, respectively, for inserting the limit pin 364. The limit pin 364 can be inserted into the corresponding jack 367 from the slot 365, and it can be used to limit the length of the stripped wire, and the insertion depth of the wire can be controlled by inserting it into different positions. It is understandable that the socket can also be set on the front cover 363, and the limit pin 364 constitutes a limit part.

[0054] The movable pulley 371, the fixed pulley 372 and the small fixed pulley 370 form a pulley block 343. When the traction line 300 is pulled, the driving member 362 and the rotating plate 368 can be pulled to rotate together, and the driving member 362 drives the four wire clamping teeth 361 to complete the wire clamping action. After the traction line 300 is released, under the action of the reset spring 344, the driving member 362 and the rotating plate 368 rotate and reset together.

[0055] This embodiment adopts a screw mechanism as the transmission unit of the chuck device 320, including a screw seat 341, a screw 321, and a coupling 325. A hollow T-shaped screw 321 with a moderate lead and a flange nut 322 is installed on the screw seat 341. The chuck device 320 is installed at one end of the screw 321, and a coupling 325 is fixed at the other end. The coupling 325 is laterally provided with a guide groove 323, and the coupling 325 is slidably connected with a head 327 fixed at one end of a power shaft 330 with a through hole in the center through the guide groove 323. The head 327 of the power shaft 330 is square, and slides with the guide groove 323 and cannot be separated, so that the screw 321 can only move axially relative to the power shaft 330, and cannot rotate relative to it (that is, it can only rotate synchronously). The power shaft 330 is also installed on the power shaft seat 334 through two bearings 328, and the other end passes through the clockwork spring device 331 installed on the spring seat 332. The winding spring device 331 can provide a torque in the opposite direction of the power to the power shaft 330 to achieve resetting.

[0056] The power shaft seat 334 has a groove 333, and the power shaft 330 passes through this groove 333. A high-strength traction line 329 is fixed on the power shaft 330 in the groove 333, and the line head 301 is led out after being wound around the power shaft 330 for several turns, and finally connected to the power device 4. When the line head 301 is pulled, the power shaft 330 will rotate. At this time, the rectangular head 327 of the power shaft 330 will drive the coupling 325 and the screw rod 321 to rotate together, and the rotation of the screw rod 321 will drive the coupling 325 to move axially. Because the guide groove 323 has a certain length, the coupling 325 has a certain axial movement space. In addition, two balls 337 are installed on each of the two faces of the rectangular head 327 in the guide groove 323 that cooperate with the guide groove 323. When the coupling 325 rotates and translates at the same time, only these four balls 337 can contact the surface of the guide groove 323, which greatly reduces the friction during the movement.

[0057] The coupling 325 has a first protrusion 324 and a second protrusion 326 at each end. When the coupling 325 rotates with the screw 321 and moves left and right to the limit, the corresponding protrusion will hit the third protrusion 340 on the screw seat 341 or the fourth protrusion 335 on the power shaft seat 334 to achieve the limit of the rotation position. There are buffer pads 339 and 336 in front of the protrusions on the screw seat 341 and the power shaft seat 334, which can achieve a buffering effect. In addition, there is a resistance ball 338 with a spring support in front of the third protrusion 340, which is set on the screw seat 341 and can also hit the first protrusion 324 of the coupling 325. Because the traction line 300 of the clamping nozzle 342 will be connected to the wire end 301 after passing through the power device 4, the tension on the two wires is the same. The resistance ball 338 can generate some resistance to the first protrusion 324 of the coupling 325, so that the resistance of the traction line to pull the screw to rotate is greater than the pulling force to pull the clamping device 320 to rotate, which can ensure that the clamping nozzle 342 is clamped first and then rotated and retreated under the drive of the screw, that is, when the traction line is pulled, the traction line first drives the clamping nozzle 342 to clamp, and then when the traction line continues to be pulled, it drives the screw to rotate, and the first protrusion 324 of the coupling 325 passes over the rotation process of the resistance ball 338 and moves axially, driving the clamping device 320 to rotate and move away from the second jaw 211, twisting the wire skin off, and twisting the wire core into a strand. When the chuck device 320 rotates back to the bottom and the handle of the power device 4 is released, the chuck device 320 returns to its initial position under the reverse torque provided by the clockwork spring device 331, the screw rod rotates in the opposite direction, and drives the first protrusion 324 of the coupling 325 to reversely pass over the resistance ball 338 and reset. Since the torque is of appropriate size, the clamping mouth 342 will first loosen and throw off the wire skin on it during the process, which can prevent the wire skin from damaging the wire core.

[0058] The high-strength traction line 300 used in the pulley block 343 passes through a small fixed pulley 370 in the center of the chuck device 320, and then passes through the screw rod 321, the coupling 325, the power shaft 330, and is wound on the power shaft 330 through the power device 4. If the traction line 300 is pulled from the middle, two power outputs are formed through the two ends of the traction line 300. One is the rotation of the power shaft 330, which realizes the rotation of the screw rod 321, thereby driving the chuck device 320 to move axially, and the other is the closing and clamping of the clamping mouth 342 of the head device. The magnitude of the clamping force depends not only on the tension on the traction line 300, but also on the number of turns of the traction line 300 around the pulley block 343. The clamping mouth 342 is facing the back of the second jaw 211 of the power combination pliers 2. If there is a wire material with a clamped and cut outer skin in the second jaw 211, the clamping mouth 342 can just clamp the wire skin to be stripped. At this time, as long as there is a driving unit to make the clamping device 320 rotate and retreat, the wire skin of the wire can be twisted off, and the wire core can be twisted into a strand. When the pulling wire 300 is released, the clamping mouth 342 will open due to the pulling force of the return spring 344 on the clamping device 320. It can be understood that the driving unit can also adopt a ball screw mechanism driven by a motor.

[0059] like Fig.14 As shown, the power device 4, as the power unit of the chuck device 320, is composed of a frame 401, a handle 400, a shaft 402, a pull rod 411, and a pulley block 408 consisting of a plurality of pulleys. The handle 400 is mounted on the frame 401 through the shaft 402, and the shaft 402 is provided with a pull rod 411. A pulley seat 410 of the pulley block 408 is mounted on the other end of the pull rod 411. The pulley block 408 uses a high-strength traction line 409, one end 407 of the line leads to the chuck device 320 in the wire twisting device 3, and the other end 406 of the line is wound around the power shaft 330 of the wire twisting device 3 (i.e., docking with the wire end 301, and the wire end 407 of the traction line 409 and the traction line 329 are docked to form the traction line 300). A pulley seat 403 of the pulley block 408 has a slotted hole 404, which can adjust the tightness of the traction line 409 by fixing the screw 405. When the handle 400 rotates counterclockwise, the power is transmitted to the pull rod 411 through the shaft 402, and the power of the pull rod 411 is finally transmitted to the wire twisting device 3 as the power for clamping and stripping the wire through the pulley block 408. It can be understood that the power device 4 serves as a pulling mechanism for pulling the traction line.

[0060] Example 2

[0061] In this embodiment, based on the first embodiment, the terminal machine also has a housing 7 for protecting the connecting rod mechanism, the screw rod, the coupling, the pulley block and other components. A rotatable bracket 5 is provided above the housing 7. It is understood that the rotating bracket 5 can also be provided separately. A plurality of magazines 6 for storing terminals are placed on the bracket 5. The magazines 6 have a variety of specifications to accommodate terminals of different types and specifications.

[0062] like Fig.15 As shown, the bracket 5 is composed of a slide 501, a sliding seat 503, a fixing screw 502, a support column 505, a bayonet frame 507, and a fixing pin 510. The slide 501 is installed on the housing 7 of the terminal machine. The sliding seat 503 can move in the slide 501, and the fixing screw 502 is inserted into the sliding seat 503 to fix the sliding seat 503. There is a hole 504 on the sliding seat 503, and the support column 505 is vertically inserted therein and can rotate. The support column 505 has a row of small holes 506 along the height direction, and the bayonet frame 507 is sleeved on the support column 505 and fixed by passing the small holes 506 with a fixing pin 510. There are four bayonet 508 on the bayonet frame 507 for clamping the magazine 6, each bayonet 508 has a small protrusion 509 on both sides, and a supporting sheet 511 at the bottom. The magazine 6 is fixed on it by these small protrusions 509 and the supporting sheet 511.

[0063] like Fig.16 As shown, the magazine 6 is composed of a body 601 and a cover 602. There are slots 603 for the cover 602 on both sides of the body 601, and the cover 602 can be made of transparent material for easy observation. There is a shallow hole 604 on each side of the body 601, and the shallow hole 604 is convenient for the magazine 6 to be stuck on the small protrusion 509 of the bracket 5. The head end face 605 of the body 601 is semi-open, and this side faces downward when it is stuck on the bracket 5. The tail 610 of the body 601 is open, and there are some protrusions 608 and grooves 609 on it. These protrusions 608 and grooves 609 allow the tails 610 of two magazines 6 of the same specifications to be plugged in, and they can be connected directly or staggered, such as Fig.17 If the body 601 is cut in the middle, its cross-section 606 can be seen, from which the shape and number of the grooves 607 for storing the terminals can be seen. The grooves 607 of magazines 6 of different specifications are similar in shape and differ only in size. A limit surface is provided at the bottom of the groove 607 to prevent the terminal inserted into the groove 607 from slipping off. Fig.18 As shown, the magazine 6 with such grooves 607 can store tubular terminals 620, double-wire tubular terminals 621 or U-shaped terminals 622. When the U-shaped terminals 622 are arranged in the magazine 6, the heads 623 are closely arranged and the tails 624 partially overlap.

[0064] The overall use process of the terminal machine in this embodiment is as follows:

[0065] First, some preparations need to be made. The first preparation is to load the magazine 6. Select two corresponding magazines 6 according to the tubular terminal 620, double-wire tubular terminal 621 or U-shaped terminal 622 to be used and their specific specifications. Remove the cover 602 and connect the tails 610 of the two bodies 601 together, with the groove 607 facing upward and holding it horizontally with one hand, and with the other hand, sprinkle some terminals (tubular terminals 601, double-wire tubular terminals 601 or U-shaped terminals 600) on it, and gently tap the connected bodies 601. Because the vibration allows the terminals to fall into the groove 607 in the correct direction, while tapping, slightly tilt the connected bodies 601, let the terminals in the groove 607 slide to one end, and remove a few terminals that are not in the correct position. After repeating the above actions several times, you will find that there are more terminals in the groove 607 in the middle position than in the edge groove 607. If the groove 607 in the middle of one of the bodies 601 is filled, but there are gaps on the sides, then all the terminals in the other body 601 can be filled by staggered docking. If one of the bodies 601 is full of terminals, the body 601 can be separated and the cover can be plugged into it, thus completing the loading of a magazine 6. If multiple magazines 6 need to be loaded, it can be completed according to the above method. The second preparation is to clamp the magazine 6 vertically on the bracket 5 with the end face 605 facing downward, and ensure that the protrusions 509 of the bracket 5 are all clamped into the shallow holes 604 on both sides of the magazine 6. Then pull the cover 602 of the magazine 6 upward a little to expose the bottom terminal. In addition, the front and rear positions of the bracket 5 and the height of the bayonet frame 507 are adjusted by the fixing screws 502 and the latch 510 of the bracket 5, so that the magazine 6 is in a more suitable position. The third preparation is to adjust the limit pin 364 in the chuck device 320 to a suitable position to ensure the length of the stripped wire.

[0066] After the preparation work is completed, the wire processing can be carried out. Put your left hand on the movable handle 200 of the combination pliers 2, and take the wire to be processed with your right hand. If the wire needs to be cut, you can put the wire into the jaws 208, and press the movable handle 200 with your left hand to complete the cutting. Release your left hand, the movable handle 200 will automatically lift up, insert the wire into the jaws 205 and extend it to the clamping mouth 342 of the wire twisting device 3 at the back until it contacts the limit pin 364. At this time, the left hand presses the movable handle 200, and the second jaw 211 completes the action of clamping the wire and cutting the skin. After that, the left hand fingers go to hold the handle 400 of the power device 4 again. After holding it firmly in place, the wire twisting device 3 also completes the operation of stripping and twisting the wire. Loosen the handle 400 to return it to its position. At this time, the wire twisting device 3 will be reset as a whole, and the wire insulation skin that was withdrawn during the process will fall off naturally. At this time, loosen the movable handle 200, pull out the wire, and you can see that the wire core has been tightly twisted into one strand. If you need to split the wire core, you can put the core into the jaws 210, press the handle 200 with your left hand, and the wire core can be folded into a smaller angle. At this time, according to the thickness of the wire core, choose a suitable one from the jaws 214, 212, and 209, and then put the wire core into it and press it again, so that the wire core is folded very tightly. Next, you can go to put on the terminal. If the front magazine 6 on the bracket 5 does not contain the required terminal, you can turn the magazine 6 to make a selection. After selecting, insert the wire core into the terminal hole exposed at the bottom of the magazine 6, pinch the wire with the thumb of the right hand and pinch the edge of the terminal with the index finger, and then pull out the terminal (in fact, in many cases, because there is a certain amount of compression between the wire core and the terminal hole, the wire core can be directly pulled out by inserting the terminal). After the terminal is pulled out, due to gravity, the terminal on the magazine 6 will fall to fill the removed terminal, preparing for the next terminal. At this time, the wire with the terminal in hand is put into the corresponding jaws, such as jaws 205, jaws 209, jaws 212 or 214, and then the movable handle 200 is pressed down to complete the crimping of the terminal. Next, the next wire can be processed according to the above steps.

[0067] If a double-wire terminal is encountered, the ends of the two wires can be aligned and put into the jaws 211 for wire stripping and twisting. After completion, the wire cores of the two wires will become one strand, and then the corresponding terminal can be installed and compacted.

[0068] Of course, in the above process, you can also hold several wires in your right hand at the same time, complete all the processes on the first wire first, and then do the same steps on the second wire, which can save time for wire picking. You can also let all the wires in your hand complete the first process first, then the second process, and so on, until the last process. This can save time for moving the wires between each process. This will be more efficient.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A multifunctional manual terminal machine capable of continuously stripping, twisting and crimping wires, comprising a movable handle, a static handle, a reset spring and a first clamp head; the first clamp head comprises a first fixed layer and a first driving layer arranged in the first fixed layer; a first jaw is arranged in the middle of the first clamp head; a plurality of teeth rotatably connected to the first fixed layer are arranged in the first jaw; the characteristics are as follows: Fixed on the rack; A second clamp head is provided in front of the first clamp head, a second jaw is provided in the middle of the second clamp head, and a plurality of teeth rotatably connected to the second fixed layer are provided in the second jaw, for clamping the wire and cutting the outer skin of the wire; the second clamp head includes a second fixed layer and a second driving layer arranged in the second fixed layer, the second driving layer includes a second front driving layer, a second middle driving layer and a second rear driving layer; the teeth in the second jaw include front teeth and rear teeth, the front teeth are driven by the second middle driving layer, and the rear teeth are driven by the second rear driving layer; the second driving layer is connected to the first driving layer through a connecting rod mechanism, and when the first driving layer rotates, the second driving layer is also driven to rotate; jaws are provided between the second front driving layer and the second fixed layer, and between the first driving layer and the first fixed layer; A chuck device is also provided on the rear side of the second jaw for clamping the wire end inserted into the second jaw, comprising a fixed part and a movable part that can rotate relative to the fixed part, and a reset part arranged between the fixed part and the movable part. The chuck device is provided with a jaw, and a plurality of wire clamping teeth are arranged in the jaw for clamping the wire skin; the chuck device can rotate and move away from the second jaw under the action of the driving unit, unscrew the wire skin, and twist the stripped wire core into a strand.

2. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 1 is characterized in that: The link mechanism comprises a first link, a second link and a third link; the first link, the second link and the third link are respectively connected between the first driving layer and the second front driving layer, the second middle driving layer and the second rear driving layer.

3. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 1 is characterized in that: The second connecting rod has the same structure as the third connecting rod, and both include two slipknot screws, a double-through stud, and two screws; one of the slipknot screws is screwed on a lever arranged below the first driving layer, and the other slipknot screw is screwed on a lever arranged below the corresponding driving layer of the second driving layer; a double-through stud is arranged between the two slipknot screws, and screws are arranged at both ends of the double-through stud, and a spring is arranged on the screw at one end.

4. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 1 is characterized in that: The fixed part includes a front panel and a rear panel; the movable part includes a driving member and a rotating plate; the front panel is fixed to the front cover plate, a rotatable driving plate is arranged between the two, and the jaws are arranged on the front panel; the rear panel is fixed to the rear cover plate, a rotatable rotating plate is arranged between the two; the front panel is fixedly connected to the rear panel, and the driving member is fixedly connected to the rotating plate.

5. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 1 is characterized in that: The fixed part and the movable part are also provided with pulley blocks, and the pulley blocks are provided with traction lines. Pulling the traction lines can drive the movable part to rotate.

6. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 1 or 5, characterized in that: The chuck device is connected to the drive unit through a screw mechanism, and the screw mechanism includes a screw seat, a screw, and a coupling; the screw is provided with a nut with a flange, and the nut with a flange is fixed on the screw seat; one end of the screw is connected to the chuck device, and the other end is connected to the power shaft through the coupling and can move axially relative to the power shaft. The power shaft is rotatably supported on the power shaft seat and driven to rotate by the drive unit.

7. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 6, characterized in that: The screw rod and the power shaft are both provided with a center hole for passing a traction wire, and one end of the traction wire is wound around the power shaft. By pulling the traction wire, the screw rod mechanism can be driven to rotate, so that the chuck device can rotate and move away from the second jaw; the coupling is laterally provided with a guide groove, and the coupling is slidingly connected to the power shaft through the guide groove, so that the screw rod can only move axially relative to the power shaft. The power shaft is provided with a spring winding device, which is used to provide the power shaft with a torque in the opposite direction of the power to achieve resetting.

8. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 7, characterized in that: The coupling is provided with a protrusion on the end face relative to the screw seat, and the screw seat is provided with a resistance ball with a spring support to cooperate with the protrusion, so that the resistance of the traction line to pull the screw to rotate is greater than the pulling force to pull the chuck device to rotate.

9. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 7, characterized in that: The frame is provided with a pulling mechanism for pulling the traction line.

10. The multifunctional manual terminal machine capable of continuous wire stripping, wire twisting and crimping according to claim 7, characterized in that: There is also a rotating bracket on which are placed multiple magazines for storing terminals.

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