Wire harness terminal crimping device

Abstract

The invention relates to the technical field of cable manufacturing, in particular to a wire harness terminal crimping device which comprises a movable crimping device, a main hydraulic cylinder connected to the front end of the movable crimping device and connected to the rear portion of the lower side of the movable crimping device, and a main hydraulic cylinder connected to the rear portion of the lower side of the movable crimping device and connected to the rear portion of the movable crimping device. A hydraulic piston is slidably arranged on the inner side of the main hydraulic cylinder in an embedded mode, and the front end of the hydraulic piston is connected with a piston jacking column. And the C-shaped crimping head is rotationally connected to the front end of the main hydraulic cylinder, a crimping groove is formed in the middle of the C-shaped crimping head, and a crimping opening is formed in the top of the crimping groove. The fixed crimping die and the movable crimping die are integrally arranged on the unit die holder, the fixed crimping die and the movable crimping die can be replaced at the same time when the unit die holder is replaced, only the whole unit die holder needs to be detached and replaced when the dies are replaced, the positions of the fixed die and the movable die do not need to be adjusted respectively, and the die replacement efficiency is improved. And the time required for replacing the mold is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cable manufacturing, and in particular to a wire harness terminal crimping device. Background Art

[0002] Wire harness terminals are an important part of electrical connections. They are mainly used to connect wires or cables to other components such as electrical equipment, switches, sensors, etc. The main function of wire harness terminals is to provide a reliable mechanical interface and electrical connection point to ensure that current can effectively flow from one component to another. In order to ensure a reliable connection between the wire harness terminal and the wire, appropriate tools and techniques are required for crimping. Wire harness terminal crimping refers to the process of stripping the insulation layer at the end of the wire, inserting the exposed conductor into a specific type of terminal, and then using special tools to compress the terminal to form a mechanical and electrical connection with the wire.

[0003] Most of the wire harness terminal crimping tools on the market need to be equipped with molds of various specifications in order to adapt to wire harness terminals of different sizes. However, the mold replacement process of these tools is often cumbersome and time-consuming. In addition, frequent mold replacement may also affect production efficiency and operation accuracy. In addition, in some production lines with high continuity, the slow mold replacement speed leads to long downtime, which seriously affects the overall production rhythm. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a wire harness terminal crimping device to solve the problem that the mold replacement process of the current wire harness terminal crimping equipment is relatively cumbersome and inefficient.

[0005] Based on the above purpose, the present invention provides a wiring harness terminal crimping device, including a mobile crimper, a gripping handle for gripping is provided at the lower rear of the mobile crimper, and further comprising:

[0006] A main hydraulic cylinder is connected to the front end of the mobile crimper, a hydraulic piston is slidably nested inside the main hydraulic cylinder, and a piston top column is connected to the front end of the hydraulic piston;

[0007] A C-type crimping joint, rotatably connected and arranged at the front end of the master hydraulic cylinder, a crimping groove is arranged in the middle of the C-type crimping joint, a crimping opening is arranged at the top of the crimping groove, a horizontal connecting groove is arranged horizontally in the middle of the crimping groove, and a loading and unloading opening is arranged at the bottom of the C-type crimping joint through the lower side of the horizontal connecting groove;

[0008] The unit mold base is detachably arranged in the middle of the horizontal connecting groove by being inserted and slidably engaged. The unit mold base slides up and down along the loading and unloading opening along the horizontal connecting groove for loading and unloading. A crimping fixed mold is fixedly connected to the front end of the unit mold base, and a horizontal guide groove is arranged in the middle of the unit mold base.

[0009] A crimping movable slider is slidably engaged in the middle of the horizontal guide groove, a crimping movable mold is arranged on the front side of the crimping movable slider, and a top column connecting groove is arranged on the rear side of the crimping movable slider, and the top column connecting groove and the piston top column are stored and cooperated with each other.

[0010] Furthermore, a hydraulic pump is provided inside the mobile crimper, and both ends of the hydraulic pump are respectively connected to a hydraulic oil tank and a boost delivery pipe, the other end of the boost delivery pipe is interconnected with the main hydraulic cylinder, and a reflux delivery pipe is connected to the rear end of the main hydraulic cylinder, and the other end of the reflux delivery pipe is connected to the hydraulic oil tank, and a one-way valve and an electromagnetic connecting valve are respectively connected in the middle of the boost delivery pipe and the reflux delivery pipe.

[0011] Furthermore, horizontal locking grooves are symmetrically provided on the left and right sides of the front end of the C-type crimping head, an elastic locking rod is rotatably provided in the middle of the horizontal locking groove, an unlocking button is provided on the outer end of the elastic locking rod, and installation locking grooves are symmetrically provided on the left and right sides of the front end of the unit mold base, the dimensions of the elastic locking rod and the installation locking groove match each other, when the unit mold base is slidably inserted into the C-type crimping head through the horizontal connecting groove, the elastic locking rod is embedded in the installation locking groove to lock the unit mold base.

[0012] Furthermore, it also includes an automatic mold changer, a mold changing installation groove is arranged in the middle of the side surface of the automatic mold changer, the sizes of the mold changing installation groove and the movable crimper match each other, the movable crimper is installed on the automatic mold changer by inserting the front end into the mold changing installation groove, the left and right sides of the mold changing installation groove are symmetrically provided with positioning engaging grooves, the left and right sides of the C-shaped crimping head are symmetrically provided with positioning connecting blocks, and the positioning engaging grooves and the positioning connecting blocks match each other.

[0013] Furthermore, an unlocking pressure block is provided at the front end of the positioning and engaging groove, and a guiding inclined surface is provided at the outer end of the unlocking pressure block. The unlocking pressure block and the unlocking button are arranged in cooperation with each other. When the C-type pressing head is positioned and embedded in the mold changing installation groove through the positioning connecting block and the positioning and engaging groove, the unlocking pressure block presses the unlocking button through the guiding inclined surface to make the elastic locking rod disengage from the installation locking groove to unlock the unit mold base.

[0014] Furthermore, a rotating storage rack is provided inside the automatic mold changer, a connecting turntable is connected to the rear side of the rotating storage rack, the rotating storage rack is rotatably connected to the automatic mold changer via the connecting turntable, a rotating gear ring is provided around the outer side of the connecting turntable, a rotating gear is meshingly connected to the outer side of the rotating gear ring, a rotating motor is connected to the shaft end of the rotating gear, and the rotating motor is fixedly connected to the automatic mold changer.

[0015] Furthermore, a plurality of unit storage slots are evenly arranged around the outer side of the rotating storage rack, a storage opening is arranged in the middle of the unit storage slot, the sizes of the unit mold base and the unit storage slot match each other, the unit mold base slides up and down along the unit storage slot through the storage opening for loading and unloading, a mold changing connecting slot is arranged on the middle front side of the rotating storage rack, and the mold changing connecting slot is connected to the mold changing mounting slot.

[0016] Furthermore, an engaging sleeve is provided in the middle of the front side of the unit storage groove, a positioning ball is slidably engaged in the middle of the engaging sleeve, a positioning spring is connected to the front side of the positioning ball, and when the unit mold base slides into the unit storage groove through the storage opening, the positioning ball is embedded in the installation locking groove to elastically fix the unit mold base.

[0017] Furthermore, a vertical guide frame is vertically arranged at the center of the rotating storage rack, a lifting and unloading frame is slidingly connected to the middle of the vertical guide frame, an outer end of the lifting and unloading frame is connected to a mosaic connection block, a loading and unloading connection groove is arranged in the middle of the bottom of the unit mold base, the loading and unloading connection groove and the mosaic connection block are cooperated with each other, a loading and unloading electromagnet is arranged in the middle of the mosaic connection block, a lifting and unloading screw sleeve is arranged in the middle of the lifting and unloading frame, a lifting screw is nested on the inner side of the lifting screw sleeve, a lifting motor is connected to the axial end of the lifting screw, and the lifting motor is fixedly connected to the vertical guide frame.

[0018] Furthermore, a detection slot is provided in the middle of the side of the automatic mold changer, a detection coil is provided around the outside of the detection slot, a Hall effect sensor is connected to the outside of the detection coil, a chip reader is installed in the middle of the mold changing connecting groove, and an identification chip is installed in the middle of the side of the unit mold base.

[0019] Beneficial effects of the present invention: It can be seen from the above that a wire harness terminal crimping device provided by the present invention performs crimping processing on the wire harness terminal through a C-type crimping joint, a unit die seat is installed in the C-type crimping joint, a crimping fixed die is fixedly connected to the front end of the unit die seat, and the crimping movable die is arranged on a crimping movable slider slidably connected to the unit die seat, and the unit die seat is detachably arranged in the middle of the horizontal connecting groove in an interlocking sliding manner, the unit die seat can slide up and down along the loading and unloading opening along the horizontal connecting groove for loading and unloading, and after the unit die seat is installed in the C-type crimping joint, the crimping movable slider is connected to the piston top column through the top column connecting groove, and the piston top column can push the crimping movable die to move through the crimping movable slider to cooperate with the crimping fixed die to crimp the wire harness terminal, thereby by integrating the crimping fixed die and the crimping movable die on the unit die seat, the crimping fixed die and the crimping movable die can be replaced at the same time when the unit die seat is replaced, and when replacing the mold, it is only necessary to disassemble and replace the entire unit die seat, and there is no need to adjust the positions of the fixed die and the movable die separately, which greatly reduces the time required for replacing the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a mobile crimping device according to an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the internal structure of a mobile crimper according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic structural diagram of a C-type crimping joint according to an embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a state where a unit die base according to an embodiment of the present invention is installed into a C-type crimping head;

[0025] Figure 5 A schematic structural diagram of a unit mold base according to an embodiment of the present invention;

[0026] Figure 6 It is a structural schematic diagram of an automatic mold changer according to an embodiment of the present invention;

[0027] Figure 7 It is a structural schematic diagram of a mold changing installation groove according to an embodiment of the present invention;

[0028] Figure 8 A schematic diagram of the internal structure of an automatic mold changer according to an embodiment of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of a rotating storage rack according to an embodiment of the present invention;

[0030] Fig.10 Schematic diagram of the structure of a unit storage tank according to an embodiment of the present invention.

[0031] The markings in the figure are:

[0032] 1. Mobile crimper; 101. Grip handle; 102. Energy storage battery; 103. Trigger switch; 104. Main hydraulic cylinder; 105. Hydraulic piston; 106. Piston top column; 107. Pressure sensor; 2. Hydraulic pump; 201. Hydraulic oil tank; 202. Boosting delivery pipe; 203. Return delivery pipe; 204. Check valve; 205. Solenoid connecting valve; 3. C-type crimping joint; 301. Rotary joint; 302. Positioning connection block; 303. Crimping groove; 304. Crimping opening; 305. Horizontal connection groove; 306. Loading and unloading opening; 307. Horizontal locking groove; 308. Elastic locking rod; 309. Unlocking button; 4. Unit die base; 401. Crimping fixed die; 402. Horizontal guide groove; 403. Reset spring; 404. Install locking groove; 405. Crimping moving slide; 406. Crimping Movable mold; 407, top column connecting groove; 408, loading and unloading connecting groove; 409, identification chip; 5, automatic mold changer; 501, mold changing installation groove; 502, positioning interlocking groove; 503, unlocking pressure block; 504, guide ramp; 505, mold changing connecting groove; 6, detection slot; 601, detection coil; 602, Hall effect sensor; 603, chip reader; 7, rotating storage rack; 701, connecting turntable; 702, rotating gear ring; 703, rotating gear; 704, rotating motor; 8, unit storage slot; 801, storage opening; 802, interlocking sleeve; 803, positioning ball; 804, positioning spring; 9, vertical guide frame; 901, lifting screw; 902, lifting motor; 903, lifting and loading and unloading rack; 904, interlocking connecting block; 905, loading and unloading electromagnet; 906, lifting screw sleeve DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, a wiring harness terminal crimping device includes a mobile crimper 1, a gripping handle 101 for gripping is provided at the lower rear of the mobile crimper 1, and further includes:

[0036] A main hydraulic cylinder 104 is connected to the front end of the mobile crimper 1, a hydraulic piston 105 is nested and slidably arranged inside the main hydraulic cylinder 104, and a piston top column 106 is connected to the front end of the hydraulic piston 105;

[0037] The C-type crimping head 3 is rotatably connected to the front end of the main hydraulic cylinder 104, a crimping groove 303 is provided in the middle of the C-type crimping head 3, a crimping opening 304 is provided at the top of the crimping groove 303, a horizontal connecting groove 305 is provided horizontally in the middle of the crimping groove 303, and a loading and unloading opening 306 is provided at the bottom of the C-type crimping head 3 through the lower side of the horizontal connecting groove 305;

[0038] The unit mold base 4 is detachably mounted in the middle of the horizontal connection groove 305. The unit mold base 4 slides up and down along the loading and unloading opening 306 along the horizontal connection groove 305 for loading and unloading. A crimping fixed mold 401 is fixedly connected to the front end of the unit mold base 4. A horizontal guide groove 402 is arranged in the middle of the unit mold base 4.

[0039] The crimping movable slider 405 is slidably engaged in the middle of the horizontal guide groove 402. The front side of the crimping movable slider 405 is provided with a crimping movable mold 406. The rear side of the crimping movable slider 405 is provided with a top column connecting groove 407. The top column connecting groove 407 and the piston top column 106 are stored and cooperated with each other.

[0040] In this embodiment, the device holds the mobile crimper 1 by holding the handle 101 to crimp the terminal of the wire harness. A C-type crimping head 3 is provided at the front end of the mobile crimper 1. The C-type crimping head 3 is rotatably connected to the mobile crimper 1 through a rotary joint 301 at the rear end to facilitate angle adjustment. During processing, the wire harness terminal is placed in the crimping groove 303 through the crimping opening 304, and then the hydraulic piston 105 inside the main hydraulic cylinder 104 pushes the piston top column 106 to move to the front side, and then the piston top column 106 pushes the crimping movable mold 406 to move through the crimping movable slider 405 to cooperate with the crimping fixed mold 401 to crimp the wire harness terminal. The wire harness terminal is crimped, and the crimping fixed mold 401 and the crimping movable mold 406 are both arranged on the unit mold base 4, the crimping fixed mold 401 is fixedly connected to the front end of the unit mold base 4, and the crimping movable mold 406 is arranged on the crimping movable slider 405 slidably connected to the unit mold base 4. 405 is slidably connected to the unit die base 4 through the horizontal guide groove 402, and a reset spring 403 is arranged in the horizontal guide groove 402 to facilitate the reverse pushing of the crimping movable slide block 405 to slide and reset, and the unit die base 4 is detachably arranged in the middle of the horizontal connecting groove 305, and the unit die base 4 can slide up and down along the loading and unloading opening 306 along the horizontal connecting groove 305 for loading and unloading. After the unit die base 4 is installed in the C-type crimping head 3, the crimping movable slide block 405 is connected to the piston top column 106 through the top column connecting groove 407, so that the crimping fixed mold 401 and the crimping movable mold 406 are uniformly integrated on the unit die base 4, and when the unit die base 4 is replaced, the crimping fixed mold 401 and the crimping movable mold 406 can be replaced at the same time. When replacing the mold, it is only necessary to disassemble and replace the entire unit die base 4, and there is no need to adjust the positions of the fixed mold and the movable mold separately, which greatly reduces the time required for replacing the mold and is more convenient and quick to use.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, preferably, a hydraulic pump 2 is provided inside the mobile crimping device 1 of the device, and the two ends of the hydraulic pump 2 are respectively connected to a hydraulic oil tank 201 and a booster delivery pipe 202, and the other end of the booster delivery pipe 202 is interconnected with the main hydraulic cylinder 104, so that the hydraulic oil in the hydraulic oil tank 201 can be pumped into the main hydraulic cylinder 104 through the hydraulic pump 2, so that the piston top column 106 is pushed by the hydraulic piston 105 to perform crimping processing, and the rear end of the main hydraulic cylinder 104 is connected to a reflux delivery pipe 203, and the other end of the reflux delivery pipe 203 is interconnected with the hydraulic oil tank 201, and the middle of the booster delivery pipe 202 and the reflux delivery pipe 203 A one-way valve 204 and an electromagnetic connecting valve 205 are respectively connected, so that after the crimping process is completed, the electromagnetic connecting valve 205 can be opened to allow the hydraulic oil to flow back to the hydraulic oil tank 201, so that the crimping fixed mold 401 and the crimping movable mold 406 can be separated from each other, and a pressure sensor 107 is also arranged between the hydraulic piston 105 and the piston top column 106 to control the crimping pressure. At the same time, a storage battery 102 and a trigger switch 103 are also connected to the mobile crimper 1. The trigger switch 103 is interconnected with various electrical structures to facilitate the control of the equipment and the mobile operation of the entire device, which is more convenient and quick to use.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, preferably, when the unit mold base 4 of the device is slidably engaged and installed into the C-type crimping head 3 through the horizontal connecting groove 305, the elastic locking rod 308 in the horizontal locking groove 307 can be embedded in the installation locking groove 404 to lock the unit mold base 4. At the same time, an unlocking button 309 is provided at the outer end of the elastic locking rod 308. By pressing the elastic locking rod 308 with the unlocking button 309, the elastic locking rod 308 can be staggered with the installation locking groove 404 to unlock the unit mold base 4, thereby facilitating the rapid replacement of the unit mold base 4, reducing the time required for mold replacement, and being more convenient and quick to use.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, preferably, the device also includes an automatic die changer 5, which is mainly composed of a mobile crimping device 1 and an automatic die changer 5. A die change installation groove 501 is provided in the middle of the side of the automatic die changer 5. The sizes of the die change installation groove 501 and the mobile crimping device 1 match each other, so that when the mobile crimping device 1 needs to replace the mold, it can be installed on the automatic die changer 5 by inserting the front end into the die change installation groove 501. At the same time, positioning connection blocks 302 are symmetrically provided on the left and right sides of the C-shaped crimping head 3, and the positioning fitting groove 502 and the positioning connection block 302 are arranged to cooperate with each other. It is convenient to carry out positioning connection, and when the C-type crimping head 3 is positioned and embedded in the mold changing installation groove 501 through the positioning connection block 302 and the positioning fitting groove 502, the unlocking pressing block 503 presses the unlocking button 309 through the guiding inclined surface 504, so that the elastic locking rod 308 disengages from the installation locking groove 404 to unlock the unit mold base 4, thereby realizing that the unit mold base 4 is automatically unlocked when the mobile crimper 1 is inserted and installed on the automatic mold changer 5, and the unit mold base 4 is automatically locked when the mobile crimper 1 is pulled out for use, so as to quickly replace the unit mold base 4, which is more convenient and quick to use.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, preferably. The automatic mold changer 5 of the device is provided with a rotating storage rack 7 inside, and the rotating storage rack 7 is rotatably connected with the automatic mold changer 5 through a connecting turntable 701, and a rotating motor 704 can drive the connecting turntable 701 and the rotating storage rack 7 to rotate through a rotating gear 703 and a rotating gear ring 702, and a plurality of unit storage slots 8 are evenly arranged around the outer side of the rotating storage rack 7, and the unit mold base 4 slides up and down along the unit storage slots 8 through a storage opening 801 for loading and unloading, and a mold changing connecting slot 505 is provided on the middle front side of the rotating storage rack 7, and the mold changing connecting slot 505 is connected with the mold changing installation slot 501, so that the rotating storage rack 7 can be used to store the molds. The rack 7 can store a variety of unit mold bases 4 at the same time, and by rotating and adjusting the position of the unit storage slot 8 storing the corresponding unit mold base 4, it can be rotated to be directly below the mold changing connecting slot 505, so as to facilitate the movement and replacement of the unit mold base 4. At the same time, an interlocking sleeve 802 is arranged in the middle of the front side of the unit storage slot 8, and a positioning ball 803 is arranged in the middle of the interlocking sliding of the interlocking sleeve 802. A positioning spring 804 is arranged on the front side of the positioning ball 803. When the unit mold base 4 slides and fits into the unit storage slot 8 through the storage opening 801, the positioning ball 803 is embedded in the installation locking slot 404 to elastically fix the unit mold base 4.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, preferably, when the device replaces the unit mold base 4 through the automatic mold changer 5, the rotating storage rack 7 adjusts the position of the unit storage slot 8 storing the corresponding unit mold base 4 by rotating, so that it rotates to just below the mold changing connecting slot 505, and then the lifting motor 902 can drive the lifting and unloading rack 903 to move up and down along the vertical guide rack 9 through the lifting screw 901 and the lifting screw sleeve 906. When the lifting and unloading rack 903 moves upward, the lifting and unloading rack 903 is embedded in the loading and unloading connecting slot 408 of the corresponding unit mold base 4 through the engaging connecting block 904. The unit mold base 4 is provided with an adsorption structure of magnetic material to fix the unit mold base 4 through the magnetic adsorption generated by the power supply of the loading and unloading electromagnet 905. Then the lifting and unloading rack 903 can slide the unit mold base 4 along the horizontal connecting slot 305 through the loading and unloading opening 306 for installation, or drive the unit mold base 4 downward to slide into the unit storage slot 8 through the storage opening 801 for storage, so as to realize automatic replacement of the unit mold base 4, which is more convenient and quick to use.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, preferably, a detection slot 6 is also provided in the middle of the side of the automatic mold changer 5 of the device, and a detection coil 601 is provided around the outer side of the detection slot 6. A Hall effect sensor 602 is provided on the outer side of the detection coil 601. When the wiring harness terminal needs to be crimped, the wiring harness terminal is first placed in the detection slot 6. At this time, the detection coil 601 is energized to generate a fixed magnetic field. When the wire passes through the magnetic field, an effect of interaction with the magnetic field is generated. The presence of the conductive wire changes the distribution of the magnetic field, thereby causing a change in the magnetic flux. The change can be sensed by the Hall effect sensor. The information is captured by the sensor 602, converted into an electrical signal for processing, and transmitted to the chip reader 603 to detect the size of the wire. The identification chip 409 arranged on each unit mold base 4 stores the corresponding information of its mold. When the rotating storage rack 7 rotates to make the unit mold base 4 pass through the chip reader 603, the corresponding information of its mold can be read and combined with the detection of the wire size, the corresponding unit mold base 4 can be automatically moved and installed on the mobile crimper 1, so as to realize automatic selection of the mold according to the size of the wire and automatic replacement of the mold, which is more convenient and quick to use.

[0047] When in use, first adjust the device according to the wire harness terminal to be crimped, place the wire harness terminal in the detection slot 6, and detect the wire size, then insert the front end of the mobile crimper 1 into the mold change installation slot 501 and install it on the automatic mold changer 5, the rotating motor 704 can drive the connecting turntable 701 and the rotating storage rack 7 to rotate through the rotating gear 703 and the rotating gear ring 702, and the rotating storage rack 7 rotates to make the unit mold base 4 pass through the chip reader 603, so that the corresponding information of its mold can be read and combined with the detection of the wire size, the unit storage slot 8 storing the corresponding unit mold base 4 is adjusted by rotation to rotate it to the bottom of the mold change connecting slot 505, and then the lifting motor 902 drives the lifting and unloading rack 903 to move upward along the vertical guide frame 9 through the lifting screw 901 and the lifting screw sleeve 906, and the lifting and The loading and unloading frame 903 is embedded in the loading and unloading connection groove 408 of the corresponding unit mold base 4 through the embedded connection block 904, and the unit mold base 4 is fixed by the magnetic adsorption generated by the power of the loading and unloading electromagnet 905. Then the lifting and unloading frame 903 slides the unit mold base 4 through the loading and unloading opening 306 along the horizontal connection groove 305 for installation. Then the loading and unloading electromagnet 905 loses power, and the lifting and unloading frame 903 moves back and resets, so that the mobile crimper 1 can be taken out. When the mobile crimper 1 is pulled out for use, the unit mold base 4 is automatically locked, and then the wiring harness terminal is placed directly on the mold, and the hydraulic piston 105 inside the main hydraulic cylinder 104 pushes the piston top column 106 to move to the front side, and then the piston top column 106 pushes the crimping movable mold 406 to move through the crimping movable slider 405, so as to cooperate with the crimping fixed mold 401 to crimp the wiring harness terminal.

[0048] The wire harness terminal crimping device provided by the present invention performs crimping processing on the wire harness terminal through a C-type crimping head 3, a unit die base 4 is installed in the C-type crimping head 3, a crimping fixed die 401 is fixedly connected to the front end of the unit die base 4, and a crimping movable die 406 is arranged on a crimping movable slider 405 which is slidably connected to the unit die base 4, and the unit die base 4 is detachably arranged in the middle of the horizontal connecting groove 305 in an engaging and sliding manner, and the unit die base 4 can slide up and down along the loading and unloading opening 306 along the horizontal connecting groove 305 for loading and unloading, and after the unit die base 4 is installed in the C-type crimping head 3, the crimping movable slider 405 is opened. The top column connecting groove 407 is connected to the piston top column 106, and the piston top column 106 can push the crimping movable mold 406 to move through the crimping movable slider 405 to cooperate with the crimping fixed mold 401 to crimp the wiring harness terminal. Thereby, the crimping fixed mold 401 and the crimping movable mold 406 are uniformly integrated on the unit mold base 4. When the unit mold base 4 is replaced, the crimping fixed mold 401 and the crimping movable mold 406 can be replaced at the same time. When replacing the mold, it is only necessary to disassemble and replace the entire unit mold base 4. There is no need to adjust the positions of the fixed mold and the movable mold separately, which greatly reduces the time required for replacing the mold.

[0049] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wiring harness terminal crimping device, comprising a mobile crimping device (1), wherein a gripping handle (101) for gripping is provided at the lower rear of the mobile crimping device (1), characterized in that: Also includes: A main hydraulic cylinder (104) is connected to the front end of the mobile crimper (1), a hydraulic piston (105) is slidably nested inside the main hydraulic cylinder (104), and a piston top column (106) is connected to the front end of the hydraulic piston (105); A C-shaped crimping joint (3) is rotatably connected to the front end of the master hydraulic cylinder (104); a crimping groove (303) is provided in the middle of the C-shaped crimping joint (3); a crimping opening (304) is provided at the top of the crimping groove (303); a horizontal connecting groove (305) is provided horizontally in the middle of the crimping groove (303); and a loading and unloading opening (306) is provided at the bottom of the C-shaped crimping joint (3) through the lower side of the horizontal connecting groove (305); The unit mold base (4) is detachably arranged in the middle of the horizontal connection groove (305) in an engaging and sliding manner. The unit mold base (4) slides up and down along the loading and unloading opening (306) and the horizontal connection groove (305) for loading and unloading. A crimping fixed mold (401) is fixedly connected to the front end of the unit mold base (4). A horizontal guide groove (402) is arranged in the middle of the unit mold base (4); A crimping movable slider (405) is slidably engaged in the middle of the horizontal guide groove (402), a crimping movable mold (406) is arranged on the front side of the crimping movable slider (405), and a top column connecting groove (407) is arranged on the rear side of the crimping movable slider (405), and the top column connecting groove (407) and the piston top column (106) are stored and cooperated with each other.

2. The wire harness terminal crimping device according to claim 1, characterized in that: The mobile crimping device (1) is provided with a hydraulic pump (2) inside, and the two ends of the hydraulic pump (2) are respectively connected to a hydraulic oil tank (201) and a booster delivery pipe (202), and the other end of the booster delivery pipe (202) is interconnected with the main hydraulic cylinder (104), and the rear end of the main hydraulic cylinder (104) is connected to a return delivery pipe (203), and the other end of the return delivery pipe (203) is interconnected with the hydraulic oil tank (201), and a one-way valve (204) and an electromagnetic connecting valve (205) are respectively connected in the middle of the booster delivery pipe (202) and the return delivery pipe (203).

3. The wire harness terminal crimping device according to claim 1, characterized in that: The front end of the C-shaped crimping head (3) is symmetrically provided with horizontal locking grooves (307) on both sides, and an elastic locking rod (308) is rotatably provided in the middle of the horizontal locking groove (307). The outer end of the elastic locking rod (308) is provided with an unlocking button (309). The front end of the unit mold base (4) is symmetrically provided with installation locking grooves (404) on both sides, and the dimensions of the elastic locking rod (308) and the installation locking groove (404) are matched with each other. When the unit mold base (4) is slidably fitted into the C-shaped crimping head (3) through the horizontal connecting groove (305), the elastic locking rod (308) is embedded in the installation locking groove (404) to lock the unit mold base (4).

4. The wire harness terminal crimping device according to claim 3, characterized in that: The invention also comprises an automatic mold changer (5), wherein a mold change installation groove (501) is arranged in the middle of the side surface of the automatic mold changer (5), the dimensions of the mold change installation groove (501) and the movable crimping device (1) are matched with each other, the movable crimping device (1) is installed on the automatic mold changer (5) by inserting the front end into the mold change installation groove (501), the left and right sides of the mold change installation groove (501) are symmetrically provided with positioning engaging grooves (502), the left and right sides of the C-shaped crimping head (3) are symmetrically provided with positioning connecting blocks (302), and the positioning engaging grooves (502) and the positioning connecting blocks (302) are matched with each other.

5. The wire harness terminal crimping device according to claim 4, characterized in that: An unlocking pressing block (503) is arranged at the front end of the positioning fitting groove (502), and a guiding inclined surface (504) is arranged at the outer end of the unlocking pressing block (503). The unlocking pressing block (503) and the unlocking button (309) are arranged in cooperation with each other. When the C-shaped crimping head (3) is positioned and embedded in the mold changing installation groove (501) through the positioning connecting block (302) and the positioning fitting groove (502), the unlocking pressing block (503) presses the unlocking button (309) through the guiding inclined surface (504), so that the elastic locking rod (308) is separated from the installation locking groove (404) to unlock the unit mold base (4).

6. The wire harness terminal crimping device according to claim 5, characterized in that: The automatic mold changer (5) is provided with a rotating storage rack (7) inside, and a connecting turntable (701) is connected to the rear side of the rotating storage rack (7). The rotating storage rack (7) is rotatably connected to the automatic mold changer (5) via the connecting turntable (701). A rotating gear ring (702) is arranged around the outer side of the connecting turntable (701), and a rotating gear (703) is arranged on the outer side of the rotating gear ring (702) in meshing connection. A rotating motor (704) is connected to the shaft end of the rotating gear (703), and the rotating motor (704) is fixedly connected to the automatic mold changer (5).

7. The wire harness terminal crimping device according to claim 6, characterized in that: A plurality of unit storage slots (8) are evenly arranged around the outer side of the rotating storage rack (7), a storage opening (801) is arranged in the middle of the unit storage slot (8), the dimensions of the unit mold base (4) and the unit storage slot (8) are matched with each other, the unit mold base (4) slides up and down along the unit storage slot (8) through the storage opening (801) for loading and unloading, a mold changing connecting slot (505) is arranged on the middle front side of the rotating storage rack (7), and the mold changing connecting slot (505) is connected to the mold changing installation slot (501).

8. The wire harness terminal crimping device according to claim 7, characterized in that: An engaging sleeve (802) is arranged in the middle of the front side of the unit storage groove (8), a positioning ball (803) is slidably engaged in the middle of the engaging sleeve (802), and a positioning spring (804) is connected to the front side of the positioning ball (803). When the unit mold base (4) slides into the unit storage groove (8) through the storage opening (801), the positioning ball (803) is embedded in the installation locking groove (404) to elastically fix the unit mold base (4).

9. The wire harness terminal crimping device according to claim 8, characterized in that: A vertical guide frame (9) is vertically arranged at the center of the rotating storage frame (7); a lifting and unloading frame (903) is slidably connected in the middle of the vertical guide frame (9); a chimeric connection block (904) is connected to the outer end of the lifting and unloading frame (903); a loading and unloading connection groove (408) is arranged in the middle of the bottom of the unit mold base (4); the loading and unloading connection groove (408) and the chimeric connection block (904) are arranged in cooperation with each other; a loading and unloading electromagnet (905) is arranged in the middle of the chimeric connection block (904); a lifting and unloading screw sleeve (906) is arranged in the middle of the lifting and unloading frame (903); a lifting screw rod (901) is nested in the inner side of the lifting screw sleeve (906); a lifting motor (902) is connected to the axial end of the lifting screw rod (901); and the lifting motor (902) is fixedly connected to the vertical guide frame (9).

10. The wire harness terminal crimping device according to claim 9, characterized in that: A detection slot (6) is also provided in the middle of the side of the automatic mold changer (5), a detection coil (601) is provided around the outer side of the detection slot (6), a Hall effect sensor (602) is connected to the outer side of the detection coil (601), a chip reader (603) is installed in the middle of the mold change connecting groove (505), and an identification chip (409) is installed in the middle of the side of the unit mold base (4).

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