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

Abstract

The utility model 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] This utility model belongs to the field of wiring tools for control cabinets of automated non-standard equipment, and in particular, it is a multi-functional manual terminal crimping machine that can continuously strip, twist, and crimp wires. Background Technology

[0002] For many years, non-standard automated equipment has been widely used. Almost every piece of this equipment is customized to the specific production needs of the customer. Unlike standard equipment, which can be mass-produced, these non-standard equipment control cabinets and control circuits distributed throughout the equipment are different. Therefore, wiring cannot be done using mass production methods; each piece must be wired individually. In this process, single-core flexible wires are commonly used in the control circuits, and their ends need to be crimped with UT fork-type cold-pressed terminals (hereinafter referred to as U-shaped terminals) or European VE tubular cold-pressed terminals (hereinafter referred to as tubular terminals). Currently, the widely used method is still to manually strip, twist, attach terminals, and crimp using simple tools such as wire strippers and crimping pliers. This method is slow, inefficient, and labor-intensive. Figures 1-4 The traditional HCS8 tube-type terminal crimping tool has a single function. Although related automatic or semi-automatic terminal crimping machines have been available for some time, these machines are not only expensive but also only suitable for large-volume crimping of single-specification wires. Therefore, for manual wiring of automated non-standard equipment, efficient and cost-effective tools are needed to improve work efficiency and reduce labor intensity. Utility Model Content

[0003] The purpose of this invention is to provide a multi-functional manual terminal crimping machine that can continuously strip, twist, and crimp wires. It is easy to operate, low in cost, and can greatly improve work efficiency and reduce labor intensity.

[0004] The technical solution to achieve the purpose of this utility model is as follows:

[0005] A multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping includes a moving handle, a stationary handle, a return spring, and a first clamping head; the first clamping head includes a first fixing layer and a first driving layer disposed within the first fixing layer; the first clamping head has a first jaw in the middle; the first jaw has multiple teeth rotatably connected to the first fixing layer; and it is fixed on a frame.

[0006] A second jaw is provided in front of the first jaw, and a second jaw is provided in the middle of the second jaw. Multiple teeth rotatably connected to a second fixing layer are provided in the second jaw for clamping the wire and cutting its outer sheath. The second jaw includes a second fixing layer and a second driving layer disposed within the second fixing 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 via a linkage mechanism, and rotation of the first driving layer simultaneously drives the second driving layer to rotate. Jaws are provided between the second front driving layer and the second fixing layer, and between the first driving layer and the first fixing layer.

[0007] The second jaw is also provided with a clamping device on the rear side for clamping the wire end that extends into the second jaw. It includes a fixed part and a movable part that can rotate relative to the fixed part, and a reset part is provided between the fixed part and the movable part. The clamping device is provided with jaws and multiple wire clamping teeth for clamping the wire sheath. The clamping device can rotate and move away from the second jaw under the action of the drive unit to unscrew the wire sheath and twist the stripped wire core into a single strand.

[0008] Compared with the prior art, the significant advantages of this utility model are:

[0009] (1) It allows wiring personnel to continuously complete the actions of cutting, stripping, twisting, attaching terminals, and crimping by holding the wire in one hand and the handle in the other. The whole process is completed in one go, which can greatly improve work efficiency and reduce labor intensity.

[0010] (2) It can perform crimping of double-wire tubular terminals, that is, both wires are stripped, twisted, and fitted with double-wire tubular terminals at the same time, and then crimping is completed.

[0011] (3) You can hold a few or more wires in your hand, strip and twist them first, then attach terminals one by one, and then crimp them securely. This can further improve work efficiency.

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

[0013] (5) It has a simple and reliable structure and low cost. Attached Figure Description

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

[0015] Figure 2 This is a diagram of the internal structure of a traditional square-mouthed HCS8 tubular terminal crimping tool.

[0016] Figure 3The HCS8 tubular terminal crimping pliers with a traditional square opening are in their internal pressing state. Figure 1 .

[0017] Figure 4 The HCS8 tubular terminal crimping pliers with a traditional square opening are in their internal pressing state. Figure 2 .

[0018] Figure 5 This is a front view of an embodiment of the present utility model.

[0019] Figure 6 This is a left rear view of an embodiment of the present utility model.

[0020] Figure 7 This is a top view of an embodiment of the present invention after the outer shell has been removed.

[0021] Figure 8 This is a left rear view of an embodiment of the present invention after the outer shell has been removed.

[0022] Figure 9 This is a front view of the combination clamp according to an embodiment of the present utility model.

[0023] Figure 10 This is a disassembly diagram of the combination clamps according to an embodiment of the present utility model.

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

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

[0026] Figure 13 This is an anatomical diagram of the chuck in an embodiment of the present invention.

[0027] Figure 14 This is a diagram of the power unit according to an embodiment of the present utility model.

[0028] Figure 15 This is a diagram of the magazine holder according to an embodiment of the present utility model.

[0029] Figure 16 This is a magazine diagram of an embodiment of the present utility model.

[0030] Figure 17 This is a diagram showing the magazine docking according to an embodiment of the present utility model.

[0031] Figure 18 This is a diagram showing the arrangement of the terminals inside the magazine according to an embodiment of the present invention.

[0032] Figure 19 This is the driving structure for the second clamp head. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should also be noted that, unless otherwise expressly specified and limited, the term "setting,"

[0037] The terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0038] This embodiment describes a multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping, derived from the traditional HCS8 tubular terminal crimping pliers. It adds a circular jaw along its length, with a distance of approximately 1 cm between the new and original jaws. Multiple jaws are also provided around the circumference of the two jaws. Furthermore, the teeth in the central jaw of the new jaw are divided into front and rear sections; the front teeth are used to clamp the wire, while the rear teeth have blade-like edges for cutting the wire sheath. The power of the new jaw is transmitted via levers and connecting rods. Specifically, a metal strip extends from the bottom of each of the three moving parts between the two jaws on one side of the stationary handle, serving as a lever, and the corresponding levers are connected by connecting rods. Each of the two connecting rods also has a spring at one end for adjusting the clamping force of the front and rear teeth.

[0039] Figures 1-4 The HCS8 tubular terminal crimping pliers are traditional square-mouth types. They are equipped with a moving handle 100, a stationary handle 101, a return spring 102, teeth 103, jaws 104, a front fixing layer 105, a drive layer, a rear fixing layer 109, and an adjuster 111. The drive layer is located between the front fixing layer 105 and the rear fixing layer 109 and can rotate between them. The drive layer has a three-layer structure, including a front drive layer 106, a middle drive layer 107, and a rear drive layer 108. The rear ends of the front drive layer 106, the middle drive layer 107, and the rear drive layer 108 are all provided with ears 110, which are rotatably connected to the moving handle 100 through an eccentric shaft 120. The end of the eccentric shaft 120 is provided with an adjuster 111. The eccentric shaft 120 can change the torque of the drive layer. When the adjuster 111 fixes the eccentric shaft 120 at a corresponding angle, the jaw force can be changed. The movable handle 100 is rotatably connected to a small lever 122 and a floating fulcrum 124. The rear end of the small lever 122 is connected to the movable handle 100 via a spring, and the front end has a small protrusion 121 for engaging with the small tooth 123 at the rear end of the floating fulcrum 124. The stationary handle 101 is provided with an elastic support 125, and the floating fulcrum 124 engages with the elastic support 125. The floating fulcrum allows the movable handle 100 to be pressed all the way down, preventing it from getting stuck in the middle. The front fixed layer 105, the drive layer, and the rear fixed layer 109 are provided with jaws, and the jaws have multiple teeth 103. The teeth 103 are rotatably connected to the front and rear fixed layers 105 and 109 via a rotating shaft. A return spring 102 is provided between the drive layer and the stationary handle 101. When the handle 100 is pressed down, it rotates the drive layer, which in turn rotates the teeth 103 within the jaws. The four teeth 103 converge towards the center, while the small teeth 123 push the small protrusion 121 upwards. At this point, the handle 100 can only be pressed down and cannot be lifted unless the small lever 122 is moved to the right to release the small teeth 123. When the handle 100 is fully pressed down, the small teeth 123 disengage from the small protrusion 121 (as shown in the image). Figure 4As shown), the handle 100 can be lifted by the action of the return spring 102. This design allows for a pause during the crimping of large terminals and also ensures that the terminals are crimped all the way down.

[0040] Example 1

[0041] Figures 5-6 The overall appearance of the embodiment is shown. Figures 7-8 The overall structure of the embodiment is shown. This multi-functional manual terminal crimping machine, capable of continuous wire stripping, twisting, and crimping, includes a frame 1. A dedicated combination pliers 2 with multiple jaws is fixed to the frame 1. A wire twisting device 3 is also fixed to the frame, positioned to the right rear of the combination pliers 2. A manual mechanical power unit 4 is also mounted on the frame 1 to provide power to the wire twisting device 3.

[0042] The combination clamp 2 in this embodiment is an extension of the traditional HCS8 tubular terminal crimping clamp. This traditional HCS8 tubular terminal crimping clamp typically has two types of jaws: four-sided and six-sided. This embodiment will use the four-sided type for illustration. Figure 1 As shown. For a traditional HCS8 tubular terminal crimping tool, the following components and functions may be mentioned below. Looking at the outer periphery of the circular clamp head 104, it has a five-layer structure, each layer being of equal thickness. The entire front layer is the front fixing layer 105, the entire back layer is the rear fixing 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 a power-transmitting ear 110. When the handle 100 is pressed, power is transmitted through the ear 110 to the three drive layers (106, 107, 108), and the drive layers simultaneously drive the four teeth 103 to rotate, thus achieving the crimping effect. When the handle 100 is released, the return spring 102 allows the handle 100 and the four teeth 103 to open.

[0043] Figure 9 The image shown is a front view of the combination clamp 2 in this example. The combination clamp 2 is... Figure 1The wire crimping pliers shown are an extension of the original pliers. They include an additional circular plier head 213 (hereinafter referred to as the second plier head), with a distance of approximately 1 cm between the second plier head 213 and the original plier head 215 (hereinafter referred to as the first plier head, corresponding to the circular plier head 104 of the HCS8 tubular terminal crimping pliers mentioned above). Multiple jaws are also provided around their circumference. Jaws 214, 212, and 209 are three different-sized crimping jaws for U-shaped terminals; jaw 210 is a wire core folding jaw; and jaw 208 is a wire cutting jaw. Furthermore, the first jaw 205 within the first plier head 215 is the original crimping jaw, and the second jaw 211 within the second plier head 213 is a jaw for clamping the wire and cutting the outer sheath. A linkage mechanism is provided between the driving layer of the second jaw 213 and the driving layer of the first jaw 215. The power of pressing down the handle 200 is transmitted to the driving layer of the second jaw 213 via the driving layer of the first jaw 215 and the linkage mechanism. This linkage mechanism includes a first lever 203 located at the lower end of the first driving layer, a second lever 207 located at the lower end of the second driving layer, and a movable linkage group 206 for transmission. The movable linkage group 206 also includes two springs 204. The combined jaws 2 are fixed to the frame 1. When the handle 200 is not under force, it automatically lifts due to the tension of the return spring 202 located between the first driving layer and the stationary handle 201, opening all the jaws. When the handle 200 is pressed down by hand, all the jaws close. The movable linkage group 206 includes a first link 256, a second link 266, and a third link 268.

[0044] The fixing layers of the second clamp head 213 and the first clamp head 215 can be either separate or integrated, such as... Figure 10 As shown, in this embodiment, the fixing layers of the second clamp head 213 and the first clamp head 215 adopt an integral 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 single-layer integral structure or a three-layer structure. When adopting a single-layer integral structure, the first lever 203 is directly disposed 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 disposed in three layers, respectively disposed at the lower end of the three driving layers of the first driving layer. The second lever 207 includes three levers respectively disposed at the lower end of the three driving layers of the second driving layer.

[0045] When the first drive layer adopts a three-layer structure, the first drive layer includes a first front drive layer 246, a first intermediate drive layer 271, and a first rear drive layer 270; the second drive layer includes a second front drive layer 257, a second intermediate drive layer 267, and a second rear drive layer 269; a first connecting rod 256 is hinged between the first front drive layer 246 and the second front drive layer 257 to transmit power; a second connecting rod 266 is hinged between the first intermediate drive layer 271 and the second intermediate drive layer 267 to transmit power; a third connecting rod 268 is hinged between the first rear drive layer 270 and the second rear drive layer 269 to transmit power; the first connecting rod 256 enables the two first front drive layers 246 and the second front drive layer 257 to move synchronously. The second connecting rod 266 and the third connecting rod 268 have the same structure, both including two slip 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 slip screws 252 and 264, which are screwed onto 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). Between the two slip screws is a double-through hexagonal stud 265. A round-headed long screw 254 at the left end of the double-through hexagonal stud 265 passes through a spring 253 and then through the round hole at the head of the left slip screw 252, screwing into the double-through hexagonal stud 265. Besides fixing the spring 253, the long screw 254 can also adjust the spring force of the spring 253. A round-headed short screw 263 on the right side of the double-through hexagonal stud 265 is also screwed into the double-through hexagonal stud 265 through the right-side slip screw 264. Since the slip screws 252 and 264 are not fixed to the levers, they can rotate relative to the levers, allowing the second connecting rod 266 to transmit power effectively. The difference is that when the handle 200 is lifted and the second link 266 is moved to the right, the second link 266 enables the first intermediate drive layer 267 and the second intermediate drive layer 271 connected to it to rotate synchronously. However, when the second link 266 moves to the left, due to the spring 253, the first intermediate drive layer 267 will not rotate synchronously because it encounters resistance. Similarly, the third link 268 is in the same situation.

[0046] The teeth in the first jaw 205 corresponding to the first pliers head 215, and the teeth in the second jaw 211 corresponding to the second pliers head 213, are rotatably connected to the front and rear fixing layers 244 and 272 via a rotating shaft. The first jaw 205 has multiple conventional teeth 242 (similar to existing wire crimping pliers), and the multiple teeth in the second jaw 211 are divided into front teeth 250 and back teeth 255, which are derived from the same teeth as the teeth 242. The longitudinal division occurs at two-thirds of the thickness of the teeth 242, with the front teeth 250 being thicker and the back teeth 255 thinner. A layer is also cut off the tail 251 of the front teeth 250 (the thickness removed is the same as the second front drive layer 257), forming an arc surface, such as... Figure 19As shown, this allows it to support normal rotation within the inner hole of the second front drive layer 257. The second front drive layer 257 cannot drive the front teeth 250 to rotate; 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 opening of the rear teeth 255 is made into a cutting edge. When the four rear teeth 255 are clamped, the four cutting edges can simultaneously cut the outer sheath of the wire, while the four front teeth 250 clamp the wire at this time, which creates conditions for the wire twisting device 3 to remove the sheath and twist the wire. The clamping and cutting forces of the front teeth 250 and rear teeth 255 are adjusted separately by the springs 253 at the heads of the second connecting rod 266 and the third connecting rod 268, or can be adjusted as a whole by the adjuster 241 (corresponding to the adjuster 111 of the existing HCS8 tubular terminal crimping tool) located at the end of the eccentric shaft.

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

[0048] The first front drive layer 246 and the second front drive layer 257 have relative movement with the front fixed layer 244, so this can be used to set some clamping jaws. Multiple U-shaped clamping jaws with right halves 243, 245, and 248 are provided on the front fixed layer 244, with a thickness twice that of the first front fixed layer 244, increasing in the rearward direction (drive layer direction). Correspondingly, multiple U-shaped clamping jaws with left halves 262, 261, and 259 are provided on the first and second front drive layers 246 and 257, also with a thickness twice that of the drive layer, increasing in thickness forward, so that their left and right halves can fully engage. Additionally, the right half 249 of the folding clamping jaw 210 has a thickness three times that of the front fixed layer and a V-shaped groove in the middle. The left half 260 of the folding clamping jaw 210 has the same thickness as the second front drive layer 257, and its right side is also V-shaped, engaging 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. Its back side is on the same plane as the back side of the first front fixing layer 244. The corresponding rear blade 258 is connected to the second front drive layer 257 and has the same thickness as the second front drive layer 257. The front blade 247 and the rear blade 258 combine to form a jaw 208, which is essentially a small pair of scissors. The detachable front blade 247 is easy to replace and also allows for some fine adjustments.

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

[0050] The chuck device 320 has a jaw 342, which opens and closes after power is transmitted through a power unit and a transmission unit. The transmission unit can also drive the chuck device 320 to move axially under the drive of the power unit.

[0051] like Figure 13 As shown. The chuck device 320 consists of a front panel 360, clamping teeth 361, a drive unit 362, a front cover plate 363, a limiting pin 364, a rear cover plate 366, a rotating plate 368, a rear panel 369, a return spring 344, a small fixed pulley 370, a movable pulley 371, and a fixed pulley 372. These components are assembled together with corresponding screws to form a chuck device 320. Between the front panel 360 and the front cover plate 363 are the drive plate 362 and the clamping teeth 361, which restrict and fix the latter two. The front panel 360 has a jaw at its center, which is fixed to the front cover plate 363. Between the two is a rotatable drive plate 362. Multiple 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. They cooperate with the drive plate 362, and the rotation of the drive plate 362 drives the multiple clamping teeth 361 to close. Between the rear panel 369 and the rear cover plate 366 is a rotating plate 368, which serves to fix and restrict the latter. The rear panel 369 is fixed to the rear cover plate 366. The rear panel 369 and the rear cover plate 366 are provided with inner holes and are connected to a lead screw 321 with a through hole. A rotating plate 368 that can rotate is provided between the two.

[0052] The front panel 360 has two "ears" 373 and 374, and similarly, the drive component 362, the rotating plate 368, and the rear panel 369 also have two "ears". These "ears" connect the rotatable parts and the non-rotatable parts, resulting in two parts: a movable part and a fixed part. Specifically, the front panel 360 and rear panel 369 are fixedly connected as the fixed part; the drive component 362 and the rotating plate 368 are fixedly connected as the movable part.

[0053] Since this embodiment uses 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 drive member 362 and the rotating plate 368; a return spring 344 (serving as a return part between the movable part and the fixed part) is provided between the other ear connecting the front panel 360 and the rear panel 369 and the other ear connecting the drive member 362 and the rotating plate 368. Meanwhile, a small fixed pulley 370 is provided on the inner side of the rear cover plate 366. The traction wire 300 passing through the lead screw exits through the small fixed pulley 370, winds around the fixed pulley 372 and the movable pulley 371, and is then fixed to the front panel 360. Two sockets are also provided on the inner side of the rear cover plate 366, each with multiple insertion holes 367 and slots 365 along the axial direction for inserting limit pins 364. The limiting pin 364 can be inserted from the slot 365 into the corresponding socket 367, which can be used to limit the length of the stripped wire. The insertion depth of the wire can be controlled by inserting it into different positions. It is understood that the socket can also be set on the front cover 363, forming a limiting part with the limiting pin 364.

[0054] The movable pulley 371, fixed pulley 372, and small fixed pulley 370 constitute a pulley group 343. When the traction line 300 is pulled, the driving member 362 and the rotating plate 368 rotate together. The driving member 362 drives the four clamping teeth 361 to complete the clamping action. After the traction line 300 is released, under the action of the return spring 344, the driving member 362 and the rotating plate 368 rotate together to return to their original position.

[0055] This embodiment uses a lead screw mechanism as the transmission unit of the chuck device 320, including a lead screw seat 341, a lead screw 321, and a coupling 325. A hollow T-shaped lead screw 321 with a moderate lead and a flange nut 322 is mounted on the lead screw seat 341. The chuck device 320 is mounted on one end of the lead screw 321, and a coupling 325 is fixed to the other end. The coupling 325 has a guide groove 323 on its side. The coupling 325 is slidably connected to a head 327 fixed at one end of a power shaft 330 with a central through hole via the guide groove 323. The head 327 of the power shaft 330 is square and slides in conjunction with the guide groove 323, making it inseparable. This allows the lead screw 321 to move axially relative to the power shaft 330, preventing relative rotation (i.e., only synchronous rotation). The power shaft 330 is mounted on a power shaft seat 334 via two bearings 328, and its other end passes through a spring coiling device 331 mounted on a spring coiling seat 332. The spring coiling device 331 can provide a torque to the power shaft 330 in the opposite direction of the power, thereby achieving reset.

[0056] The power shaft seat 334 has a groove 333 through which the power shaft 330 passes. A high-strength traction wire 329 is fixed to the power shaft 330 in the groove 333, and after being wound several times around the power shaft 330, a wire end 301 is led out and finally connected to the power unit 4. When the wire end 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 lead screw 321 to rotate together. The rotation of the lead screw 321 will then 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 surfaces of the rectangular head 327 that mate 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 lead screw 321 to its left or right limit, the corresponding protrusion will hit the third protrusion 340 on the lead screw seat 341 or the fourth protrusion 335 on the drive shaft seat 334 to limit the rotational position. Both the lead screw seat 341 and the drive shaft seat 334 have a buffer pad 339 and 336 in front of the protrusions, which provides a cushioning effect. Additionally, there is a spring-supported resistance ball 338 in front of the third protrusion 340, located on the lead screw seat 341, which also hits the first protrusion 324 of the coupling 325. Because the traction line 300 of the clamp 342 will return to the line head 301 after passing through the power device 4, the tension on the two lines is the same. The resistance ball 338 can generate some resistance on 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 clamp device 320 to rotate. This ensures that the clamp 342 clamps first and then rotates and retracts under the drive of the screw. That is, when the traction line is pulled, the traction line first drives the clamp 342 to clamp, and then when the traction line is pulled again, it drives the screw to rotate. The first protrusion 324 of the coupling 325 passes over the resistance ball 338 and rotates axially, driving the clamp device 320 to rotate and move away from the second jaw 211, unscrewing the wire sheath and twisting the wire core into a single strand. When the chuck device 320 rotates back to the end and the handle of the power unit 4 is released, the chuck device 320 returns to its initial position under the reverse torque provided by the spring winding device 331. The lead screw rotates in the opposite direction and drives the first protrusion 324 of the coupling 325 to move in the opposite direction past the resistance ball 338 to reset. Because the torque is appropriate, the jaw 342 will release first and throw off the wire sheath during the process, which can prevent the wire sheath from damaging the wire core.

[0058] The high-strength traction line 300 used in the pulley block 343 passes around a small fixed pulley 370 at the center of the clamping device 320, and then sequentially passes through the lead screw 321, coupling 325, and power shaft 330 before being wound around the power shaft 330 via the power device 4. If this traction line 300 is pulled from the middle, two power outputs are generated at its two ends: one is the rotation of the power shaft 330, which rotates the lead screw 321, thereby driving the clamping device 320 to move axially; the other is the closing and clamping of the jaws 342 of the head device. The clamping force depends not only on the tension in the traction line 300 but also on the number of turns the traction line 300 makes around the pulley block 343. The jaws 342 face the back of the second jaw 211 of the power combination clamp 2. If there is wire with its outer sheath cut in the second jaw 211, the jaws 342 can just clamp the wire sheath to be stripped. At this point, as long as the drive unit rotates and retracts the chuck device 320, the wire sheath can be unscrewed, and the wire core can be twisted into a single strand. Releasing the traction wire 300 will cause the jaws 342 to open due to the tension of the return spring 344 on the chuck device 320. Understandably, this drive unit can also be a motor-driven ball screw mechanism.

[0059] like Figure 14 As shown, the power unit 4, serving as the power unit for the clamping device 320, comprises a frame 401, a handle 400, a shaft 402, a pull rod 411, and a pulley block 408 consisting of multiple pulleys. The handle 400 is mounted on the frame 401 via the shaft 402, which has the pull rod 411 mounted on it. A pulley seat 410 of the pulley block 408 is mounted at the other end of the pull rod 411. The pulley block 408 uses a high-strength traction cable 409. One end 407 of the cable leads to the clamping device 320 in the twisting device 3, while the other end 406 is wound onto the power shaft 330 of the twisting device 3 (i.e., it mates with the cable end 301; the cable end 407 and the traction cable 329 mate to form the traction cable 300). One pulley seat 403 of the pulley block 408 has a slotted hole 404, which allows adjustment of the tension of the traction cable 409 via a fixing screw 405. When handle 400 is rotated counterclockwise, power is transmitted to pull rod 411 via shaft 402. The power of pull rod 411 is then transmitted to the twisting device 3 via pulley block 408 as the power for clamping and uncoating the wire. Understandably, the power unit 4 acts as a pulling mechanism to actuate the traction wire.

[0060] Example 2

[0061] Based on Embodiment 1, this terminal crimping machine also includes a housing 7 to protect components such as the linkage mechanism, lead screw, coupling, and pulley system. A rotatable support 5 is located on top of the housing 7. It is understood that the rotatable support 5 can also be provided independently. Multiple magazines 6 for storing terminals are placed on the support 5. The magazines 6 come in various sizes to accommodate different types and specifications of terminals.

[0062] like Figure 15 As shown, the bracket 5 consists of a slide groove 501, a sliding seat 503, a fixing screw 502, a support column 505, a bayonet bracket 507, and a fixing pin 510. The slide groove 501 is mounted on the housing 7 of the terminal crimping machine. The sliding seat 503 can move within the slide groove 501, and the fixing screw 502 is inserted into the sliding seat 503 to fix it in place. The sliding seat 503 has a hole 504, into which the support column 505 is vertically inserted and can rotate. The support column 505 has a row of small holes 506 along its height, and the bayonet bracket 507 is fitted onto the support column 505 and fixed by the fixing pin 510 passing through the small holes 506. The bayonet bracket 507 has four bayonets 508 for inserting the magazine 6. Each bayonet 508 has a small protrusion 509 on each side and a support piece 511 at the bottom. The magazine 6 is fixed to the machine by these small protrusions 509 and the support piece 511.

[0063] like Figure 16 As shown, the magazine 6 consists of a body 601 and a cover 602. The body 601 has slots 603 on both sides for the cover 602. The cover 602 can be made of transparent material for easy observation. Each side of the body 601 has a shallow hole 604, which allows the magazine 6 to be secured to the small protrusion 509 of the bracket 5. The head end face 605 of the body 601 is semi-open, facing downwards when secured to the bracket 5. The tail end 610 of the body 601 is open, with protrusions 608 and grooves 609. These protrusions 608 and grooves 609 allow the tail ends 610 of two magazines 6 of the same specification to be inserted, either directly opposite each other or staggered. Figure 17 As shown. If the body 601 is cut open from the middle, its cross-sectional surface 606 can be seen, revealing the shape and number of grooves 607 storing the terminals. The grooves 607 of different specifications of magazines 6 have similar shapes, differing only in size. A limiting surface is provided at the bottom of the groove 607 to prevent the terminals inserted into the groove 607 from slipping out. Figure 18 As shown, the magazine 6 with such groove 607 can store tubular terminals 620, double-wire tubular terminals 621, or U-shaped terminals 622. When the U-shaped terminals 622 are arranged inside the magazine 6, their heads 623 are closely arranged, and their tails 624 partially overlap.

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

[0065] First, some preparatory work needs to be done. The first preparatory work is loading the magazine 6. Select two magazines 6 corresponding to the tubular terminals 620, double-wire tubular terminals 621, or U-shaped terminals 622 to be used, and their specific specifications. Remove the cover 602 and connect the two bodies 601 with their tails 610 facing each other, groove 607 facing upwards. Hold the magazine horizontally with one hand and sprinkle some terminals (tubular terminals 601, double-wire tubular terminals 601, or U-shaped terminals 600) on it with the other hand, and gently tap the connected bodies 601. Because of the vibration, the terminals will fall into the groove 607 in the correct direction. While tapping, slightly tilt the connected bodies 601 to allow the terminals in the groove 607 to 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 middle groove 607 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 used to fill the gaps using a staggered mating method. If one of the bodies 601 is full of terminals, the bodies 601 can be separated and the cover inserted, thus completing the loading of one magazine 6. If multiple magazines 6 need to be loaded, the above method can be followed. The second preparation is to vertically clamp the magazines 6 onto the bracket 5 with the end face 605 facing down, ensuring that the protrusions 509 of the bracket 5 are engaged in the shallow holes 604 on both sides of the magazine 6. Then pull the cover 602 of the magazine 6 upwards slightly to expose the bottommost terminal. In addition, adjust the front and rear position of the bracket 5 and the height of the bayonet 507 using the fixing screws 502 and pins 510 of the bracket 5 to place the magazine 6 in a suitable position. The third preparation is to adjust the limiting pin 364 in the chuck device 320 to a suitable position to ensure the stripping length.

[0066] After preparation, wire processing can begin. Place your left hand on the handle 200 of the combination pliers 2, and hold the wire to be processed in your right hand. If the wire needs cutting, place it into the jaws 208 and press down the handle 200 with your left hand to cut. Release your left hand; the handle 200 will automatically lift, inserting the wire into the jaws 205 and extending it into the jaws 342 of the twisting device 3 until it contacts the limit pin 364. Then, press down the handle 200 with your left hand; the second jaw 211 will clamp and cut the insulation. Next, grip the handle 400 of the power device 4 with your left hand, ensuring it's firmly in place. The twisting device 3 will then remove the insulation and twist the wire. Release the handle 400 to return it to its original position; the entire twisting device 3 will reset, and the removed insulation will fall off naturally. Release the handle 200 and pull out the wire; you will see the core tightly twisted into a single strand. If you need to detach the wire core at this point, insert the core into jaw 210 and press the handle 200 with your left hand. The core will then bend at a small angle. Depending on the thickness of the core, select a suitable jaw from 214, 212, or 209, insert the core, and press it down again. This will fold the core very tightly. Next, you can install the terminal. If the front magazine 6 on the bracket 5 does not contain the required terminal, you can rotate the magazine 6 to select one. After selecting, insert the core into the terminal hole exposed at the bottom of the magazine 6. Pinch the wire with your right thumb and the edge of the terminal with your right index finger, and then pull out the terminal (in reality, often because there is some pressure between the core and the terminal hole, you can simply pull the core out of the terminal). After the terminal is removed, due to gravity, the terminal on the magazine 6 will fall down to fill the gap, preparing for the next terminal installation. Next, insert the wire with the terminal into the corresponding jaws of the clamps, such as jaw 205, jaw 209, jaw 212, or 214, and then press down the handle 200 to complete the crimping of the terminal. You can then proceed with the processing of the next wire following the same steps.

[0067] If you encounter a two-wire terminal, you can align the ends of the two wires together and insert them into the jaws 211 of the pliers to strip and twist the wires. After that, the cores of the two wires will become one strand. Then, install the corresponding terminal and press it firmly.

[0068] Of course, during the above process, you can hold several cables in your right hand simultaneously. Complete all the processes on the first cable before performing the same steps on the second cable, thus saving time on cable handling. Alternatively, you can complete the first process on all the cables in your hand, then the second, and so on, until the last process. This saves time on moving the cables between each process, resulting in higher efficiency.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or make equivalent substitutions to the technical solution of this utility model, and these modifications or equivalent substitutions shall not cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping, comprising a moving handle, a stationary handle, a return spring, and a first clamping head; the first clamping head includes a first fixing layer and a first driving layer disposed within the first fixing layer; a first jaw is provided in the middle of the first clamping head; the first jaw is provided with a plurality of teeth rotatably connected to the first fixing layer; characterized in that, Fixed to the frame; A second jaw is provided in front of the first jaw, and a second jaw is provided in the middle of the second jaw. Multiple teeth rotatably connected to a second fixing layer are provided in the second jaw for clamping the wire and cutting its outer sheath. The second jaw includes a second fixing layer and a second driving layer disposed within the second fixing 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 via a linkage mechanism, and rotation of the first driving layer simultaneously drives the second driving layer to rotate. Jaws are provided between the second front driving layer and the second fixing layer, and between the first driving layer and the first fixing layer. The second jaw is also provided with a clamping device on the rear side for clamping the wire end that extends into the second jaw. It includes a fixed part and a movable part that can rotate relative to the fixed part, and a reset part is provided between the fixed part and the movable part. The clamping device is provided with jaws and multiple wire clamping teeth for clamping the wire sheath. The clamping device can rotate and move away from the second jaw under the action of the drive unit to unscrew the wire sheath and twist the stripped wire core into a single strand.

2. The multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping according to claim 1, characterized in that, The linkage mechanism includes 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 drive layer and the second front drive layer, the second middle drive layer, and the second rear drive layer.

3. The multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping according to claim 2, characterized in that, The second and third connecting rods have the same structure, both including two swivel screws, a double-through hexagonal stud, and two screws; one swivel screw is screwed onto a lever located below the first drive layer, and the other swivel screw is screwed onto a lever located below the corresponding drive layer of the second drive layer. A double-through hexagonal stud is provided between the two swivel screws, and screws are provided at both ends of the double-through hexagonal stud, with a spring on one end of the screw.

4. The multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping according to claim 1, characterized in that, The fixed part includes a front panel and a rear panel; the movable part includes a drive component and a rotating plate; the front panel is fixed to the front cover plate, and a rotatable drive plate is provided between the two, with the jaws provided on the front panel; the rear panel is fixed to the rear cover plate, and a rotatable rotating plate is provided between the two; the front panel and the rear panel are fixedly connected, and the drive component is fixedly connected to the rotating plate.

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

6. The multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping according to claim 1 or 5, characterized in that, The chuck device is connected to the drive unit via a lead screw mechanism, which includes a lead screw seat, a lead screw, and a coupling. The lead screw is provided with a flanged nut, which is fixed to the lead screw seat. One end of the lead screw is connected to the chuck device, and the other end is connected to the power shaft via the coupling, and can move axially relative to the power shaft. The power shaft is rotatably supported on the power shaft seat and is driven to rotate by the drive unit.

7. The multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping according to claim 6, characterized in that, Both the lead screw and the drive shaft are provided with through holes for the traction line to pass through. One end of the traction line is wound around the drive shaft. By pulling the traction line, the lead screw mechanism can be rotated, thereby rotating the chuck device and moving it away from the second jaw. The coupling is provided with a guide groove on its side. The coupling is slidably connected to the drive shaft through the guide groove, so that the lead screw can only move axially relative to the drive shaft. The drive shaft is provided with a spring mechanism to provide a torque opposite to the power force to achieve reset.

8. The multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping according to claim 7, characterized in that, The coupling has a protrusion on the end face opposite the lead screw seat, and the lead screw seat has a spring-supported resistance ball that cooperates with the protrusion, so that the resistance of the traction line pulling the lead screw to rotate is greater than the pulling force that pulls the chuck device to rotate.

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

10. The multi-functional manual terminal crimping machine capable of continuous wire stripping, twisting, and crimping according to claim 7, characterized in that, It also features a rotating bracket on which multiple magazines for storing terminals are placed.

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