Crimping device for power cable harness

Abstract

The invention discloses a crimping device for a power cable harness, relates to the technical field of crimping of power cable harnesses, and is used for solving the problems that when cable side terminal crimping is carried out by existing equipment, the crimping is influenced by the shape and the structure of a terminal, the feeding step is complicated, and the overall crimping efficiency of a subsequent cable is influenced. According to the invention, cable crimping terminals are improved, original prefabricated terminals are changed into semi-finished products for feeding, the terminals are conveyed to a slide block at the top of a forming table one by one by using a conveyor belt according to the characteristic that the semi-finished products of the terminals are convenient to move and feed, then a mold table is pushed to descend through a hydraulic cylinder I, and the terminals at the top of a forming column are pressed by using a pressing block I; therefore, the whole terminal deforms in the forming table, the mold table ascends in cooperation, the limiting block located on the placing block pushes the sleeve to move, the terminal is laterally pushed into the end of the cable, and finally the whole cable crimping work is achieved under the combined action of the second pressing block and the check block.

Description

Technical Field

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

[0002] Crimping machines are essential tools for the power industry to crimp conductors during line infrastructure construction and line maintenance. Crimping machines are divided into hydraulic crimping machines, large-tonnage crimping machines, insulated terminal crimping machines, crimping pliers, split crimping machines, and hand-cranked hydraulic crimping machines.

[0003] The crimping of cables is inseparable from terminals. According to "A Cable Crimping Device" with publication number CN117013331A, wire noses are often used for connecting and continuing cable ends. The scientific name of the wire nose here is the wiring terminal, which can make the connection between cables and electrical appliances more firm and safer. Generally, one end of the wire nose is sheet-shaped and has a round hole, and the other end of the wire nose is hollow cylindrical and has an opening. When the cable is connected to the wire nose, first insert the copper wire at one end of the cable into the opening, and then use a crimping machine to crimp the wire nose and the copper wire, so that the wire nose can be connected to the cable. The article mentions that before crimping, first put the end of the wire nose with a round hole on the guide rod, and the guide rod A plurality of wire noses can be sleeved on the rod, and then the copper wire ends of a plurality of cables are respectively passed through the through holes of each connecting block and inserted into the other end of each wire nose. At this time, the connection between the wire nose and the cable is located in the processing gap, the guide rod can support the wire nose, and the connecting block can support the cable, which can improve the stability of the cable and the wire nose during crimping. The crimping head moves in the processing gap and is lifted and lowered by the first lifting member, so that each group of wire noses and cables can be crimped, thereby improving the crimping efficiency of the wire nose and the cable; the feeding work of the wire nose is taken into consideration here. Due to the different sizes and shapes of the wire noses, the fixing steps are relatively cumbersome, and the difference in installation position will also affect the subsequent crimping effect of the cable;

[0004] To this end, we propose a crimping device for a power cable harness. Summary of the invention

[0005] The object of the present invention is to provide a crimping device for a power cable harness, so as to solve the problem that when the existing equipment proposed in the above background technology is used to crush the attapulgite, other impurities such as rocks in the attapulgite mine are processed and crushed together, resulting in an increase in the subsequent attapulgite screening and purification processing time;

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A crimping device for a power cable harness comprises a placing frame, a hydraulic cylinder 1 is fixed to the top of the placing frame by bolts, and a press-type pushing mechanism is fixed to the bottom of the hydraulic cylinder 1 by bolts;

[0008] The top bracket of the placing rack is slidably connected to a push cylinder, the side of the push cylinder is fixedly connected to a forming column, and the outer wall of the forming column is sleeved with a sleeve slidably connected, one side of the sleeve passes through the push cylinder and is slidably connected to the inner wall of the push cylinder, the top of the placing rack and located on the side of the push cylinder is fixedly connected to a forming table, the side of the forming table is slidably connected to a pressure block 2, the top of the placing rack is movably connected to a turntable through a bearing, and the top of the turntable is symmetrically fixed with a push box by bolts.

[0009] Furthermore, a fixed plate is symmetrically installed on the top of the turntable, the outer wall of the push box is movably connected to a transmission roller group 1, the inner wall of the push box is movably connected to a transmission roller group 2, the inner wall of the push box is fixed with a laser peeling machine by bolts, and a wire breaking mechanism is installed in the push box and on the side of the laser peeling machine.

[0010] Furthermore, the press-forming and pushing mechanism includes a die table, a pressing block and a placing block. The end of the hydraulic cylinder is fixed to the die table by bolts, the bottom of the die table is fixed to a pressing block by bolts, the bottom of the die table is also fixedly connected to a placing block, one side of the placing block is rotatably connected to a limiting block, the limiting block and the protrusion on the placing block are sleeved with a spring, and the protrusion on the placing block abuts against the bottom of the limiting block.

[0011] Furthermore, a second spring is installed in the push cylinder and sleeved on the outer wall of the sleeve, a stop block is installed on the side of the push cylinder, and one end of the stop block passes through the push cylinder and abuts against the side of the sleeve.

[0012] Furthermore, a hydraulic cylinder 2 is fixed to the bottom of the placement rack by bolts, one end of the hydraulic cylinder 2 is fixed to a pressure block 2, a stopper is fixed to one side of the forming table by spot welding, and sliders are symmetrically slidably connected to the inner walls of both sides of the forming table.

[0013] Furthermore, the pressing block at the bottom of the mold platform is arranged correspondingly to the groove at the top of the forming platform, and the limiting block at the bottom of the mold platform is arranged correspondingly to the side abutment block of the push cylinder.

[0014] Online forming of crimped terminals: The terminal material for cable crimping is moved to the top slider of the forming table through a conveyor belt, and the hydraulic cylinder is used to push the pressing block on the side of the die table to contact the terminal material on the slider, so that the terminal material contacts the forming column on the side of the push tube, and the forming of the crimping hole of the wire harness is completed. As the die table rises, the upper limit block of the placement block contacts the push tube side block, and the push block is pushed to contact the inner sleeve of the push tube, so that the end of the sleeve contacts the terminal formed on the forming column, and the terminal hole side moves to the bottom of the block;

[0015] Online stripping and loading of crimped wire harness: The cable harness pre-placed on the fixed disk is fed into the push box by the rotation of the drive roller one, and then passes through the laser stripping machine and the wire breaking mechanism to the drive roller group two. The laser wire stripping machine is used to complete the cable skin cutting, and then the drive roller one rotates in the opposite direction and the drive roller two is clamped to successfully peel off the outer wall of the cable. Then the drive roller one rotates forward to push the cable core out of the push box and insert the cable core into the terminal hole. At this time, the pressure block two at the bottom of the forming table rises, driving the terminal of the connected cable to contact the top block, completing the entire cable crimping work. With the rotation of the turntable and the continuous wiring of the drive roller one, the cable is cut off at the end of crimping after reaching the specified length using the wire breaking mechanism, realizing automatic loading and unloading of the crimped cable.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by improving the terminal for cable crimping, the original prefabricated terminal is used for the semi-finished product feeding, and the terminal semi-finished product is conveniently moved and loaded. The terminals are sent one by one to the top slider of the forming table by using a conveyor belt, and then the mold table is pushed down by a hydraulic cylinder, and the terminal located at the top of the forming column is pressed down by a pressing block, so that the entire terminal is deformed in the forming table, and the upper limit block located at the placement block pushes the sleeve to move, so that the terminal side is pushed into the cable end, and finally the entire cable crimping work is realized under the joint action of the pressing block 2 and the stopper. Compared with the original terminal responsible for loading, the terminal loading is simplified while not affecting the subsequent cable crimping, thereby improving the overall cable crimping efficiency;

[0018] 2. In the present invention, a double-station outlet mechanism is set on the turntable, and the transmission roller group 1 and the transmission roller group 2 in the push box are used to drive one end of the cable that has been stripped by the laser stripping machine to move, so as to complete the automatic abutment between the cable and the terminal. Compared with the manual automatic insertion, the abutment efficiency is improved. At the same time, the wire breaking mechanism in the push box is used to complete the cable cutting, and the cable is continuously discharged on the subsequent fixed disk to realize the high-speed continuous crimping of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the power cable harness crimping device of the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of the power cable harness crimping device of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall structure of the pressing and pushing mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the abutment structure between the forming table and the forming column extending from the push cylinder side of the present invention;

[0023] Figure 5 This is a schematic diagram of the installation structure of the push box on the top of the turntable of the present invention;

[0024] Figure 6 This is a schematic cross-sectional view of the structure of the push box of the present invention;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the push cylinder of the present invention.

[0026] In the figure: 1. placement rack; 2. hydraulic cylinder 1; 3. pressing and pushing mechanism; 301. die table; 302. pressing block 1; 303. placing block; 304. spring 1; 305. limiting block; 4. pushing cylinder; 5. forming column; 6. sleeve; 7. spring 2; 8. stop block; 9. forming table; 10. hydraulic cylinder 2; 11. pressing block 2; 12. stop block; 13. slider; 14. turntable; 15. fixed disk; 16. pushing box; 17. transmission roller group 1; 18. transmission roller group 2; 19. laser peeling machine; 20. wire breaking mechanism. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-7 , the present invention provides a technical solution:

[0029] Embodiment 1: When crimping a power cable harness, prepared terminals are usually used for sleeve connection, and then crimped and fixed by special terminal pliers. When crimping a batch of cable harnesses, the efficiency of manual insertion and crimping is low. The present invention improves the original prefabricated terminal plug-in process. For some directly connectable terminals, such as OT round bare terminals and UT fork-type bare terminals, it is only necessary to obtain the raw materials for preliminary stamping, and immediately insert the harness after the stamping is completed to finally complete the crimping operation. Compared with crimping with prepared terminals, a special feeder needs to be set up, and the overall crimping process is more cumbersome.

[0030] like Figure 1 As shown, a conveyor belt is installed on the entire side of the placement rack 1 to move the terminal stamping parts one by one to the side of the slider 13 on the forming table 9. For the forming of the terminal, a press-forming and pushing mechanism 3 is fixed at the end of the hydraulic cylinder 2 on the placement rack 1, as shown in FIG. Figure 3As shown, the upper die table 301 of the entire pressing and pushing mechanism 3 is connected to the pressing block 1 302, the bottom of the pressing block 1 302 is in a "U" shape, and the forming column 5 used for support is responsible for squeezing one side of the terminal into a round hole shape, and the placement block 303 is installed on the other side of the die table 301, and one side of the entire placement block 303 is movably connected to the limit block 305, and a spring 1 304 is also installed between the limit block 305 and the placement block 303;

[0031] The limit block 305 at the bottom of the entire mold platform 301 is correspondingly arranged with the stop block 8 on one side of the push cylinder 4. When the mold platform 301 drives the limit block 305 to move downward to contact the stop block 8 on the side of the push cylinder 4, the entire limit block 305 begins to rotate due to the restriction of the stop block 8, and then passes over the stop block 8 and resets. When the mold platform 301 rises, the limit block 305 at this time begins to contact the stop column, and the limit column is also abutted by the receiving protrusion and cannot rotate. The lifting process pushes the entire stop column to move into the push cylinder 4, and the internal structure of the entire push cylinder 4 is as shown in FIG. Figure 7 As shown, one side of the abutment block 8 abuts against the sleeve 6, and the entire sleeve 6 is located on the forming column 5. As the abutment block 8 moves, the entire sleeve 6 will be pushed to the right, thereby pushing away the terminal sleeve section formed on the surface of the forming column 5, leaving space for the subsequent cable to be inserted into the terminal;

[0032] In order to facilitate the subsequent terminal forming, the entire sleeve 6 is also sleeved with a spring 2 7. When there is no push block 8, the sleeve 6 is reset by using the spring 2 7. When the pressing block 1 302 contacts the terminal material on the slider 13, the abutment drives the entire terminal to simultaneously descend on the slider 13 and contact the entire forming column 5. After being squeezed by the pressing block 1 302, the terminal is sleeved on the forming column 5, and then pushed down by the sleeve 6 to the top of the pressing block 2 11 on the side of the forming table 9;

[0033] like Figure 4 As shown, a hydraulic cylinder 2 10 is installed at the bottom of the entire placement rack 1, and a pressure block 2 11 is slidably connected to the side of the forming table 9. The hydraulic cylinder 2 10 pushes the pressure block 2 11 to move, so that the pressure block 2 11 contacts the stop block 12 on the top of the forming table 9. After the combined extrusion of the pressure block 2 11 and the stop block 12, the subsequent crimping work of the terminal and the cable is completed.

[0034] Example 2: For the treatment of the entire power cable, such as Figure 5 As shown, a turntable 14 is movably connected to the top of the entire placement rack 1, and a fixed disk 15 is symmetrically movably connected to the top of the turntable 14. The cable to be crimped is wound around the outside of the fixed disk 15, and then one end of the cable is inserted into the push box 16, as shown in FIG. Figure 6 As shown, the outer side of the push box 16 symmetrically arranged on the turntable 14 is movably connected with a transmission roller group 17, and the top cover of the push box 16 can be opened at the same time, and one end of the cable is passed through the laser peeling machine 19 and the wire breaking mechanism 20. The push box 16 is also movably connected with a transmission roller group 2 18;

[0035] When it is necessary to strip the cable, start the laser stripping machine 19 installed in the push box 16. The traditional wire stripping process is implemented by special wire stripping pliers or knives. In the mass production of household appliances and instrumentation and instrumentation industries, mechanical stripping machines with a high degree of automation are often used. Mechanical stripping will produce certain extrusion and cutting marks on the metal wire core because the jaws contact the wire, resulting in damage to the metal wire core. The thermal decomposition effect or molecular chain destruction effect of the laser is used to process the material to be stripped. According to the material characteristics of different layers, two different laser types can be selected to process the wire. There is no contact with the wire, no processing stress, and the wire stripping is cleaner, without residue, and without damage. It is suitable for stripping single-strand wire, double-strand wire, double-glue wire, cable, multi-layer wire, optical fiber cable coaxial cable, thin wire, ultra-thin coaxial wire, electronic wire industry and HDMI, USB, DVI, DP, SATA, SFP and other wire aluminum foil Mylar and core wire;

[0036] As for the treatment of the stripped cable sheath, the drive roller 1 and the drive roller 2 installed in the push box 16 are used. Since the drive roller 2 can adjust the pressure between it and the cable by itself, the entire cable is pulled in the opposite direction through the drive roller group 17. At this time, the drive roller 2 clamps the cable surface, which will cause the cut sheath on the cable to fall off. Finally, the rotation direction of the drive roller group 17 is changed to push the battery core on the cable out of the entire push box 16.

[0037] With the rotation of the entire turntable 14, the outlet of one side of the push box 16 is flush with the terminal outlet on one side of the forming table 9, and one end of the cable pushed out by the transmission roller 1 and the transmission roller 2 abuts against the terminal. At this time, with the extrusion of the upper pressure block 2 11, the entire cable crimping work is completed. Then, the cable with the terminal at the next end of the entire turntable 14 rotates to the other side, and the subsequent cable cutting is carried out according to the cutting length requirement. At this time, it is realized by the wire breaking mechanism 20 installed in the push box 16, and at the same time, the push box 16 on the other side of the turntable 14 starts a new round of terminal crimping. After the turntable 14 rotates alternately, the terminal crimping on the cable is continuously realized. Compared with the crimping set by humans, the overall processing efficiency is improved. At the same time, the original prefabricated terminal feeding production line is rectified, and the raw materials can be prepared online. Compared with the irregular terminal feeding, the sheet terminal raw materials are used for processing and forming, the process flow is simpler, the terminal feeding is more convenient, and it will not affect the subsequent cable crimping.

[0038] The working principle of the present invention is as follows: the terminal material to be crimped is moved to the top slider 13 of the forming table 9 via a conveyor belt, and a hydraulic cylinder 2 is used to push a pressing block 302 on the side of the die table 301 to contact the terminal material on the slider 13, so that the terminal material contacts the forming column 5 on the side of the push tube 4, and the forming of the wire harness crimping hole is completed. As the die table 301 rises, the upper limit block 305 of the placement block 303 contacts the side stop block 8 of the push tube 4, and the stop block 8 is pushed to contact the inner sleeve 6 of the push tube 4, so that the end of the sleeve 6 contacts the terminal formed on the forming column 5, and the terminal hole is moved sideways to the bottom of the stop block 12;

[0039] The cable harness pre-placed on the fixed disk 15 is fed into the push box 16 by the rotation of the transmission roller 1, and passes through the laser stripping machine 19 and the wire breaking mechanism 20 in turn to the transmission roller group 2 18, and the cable skin is cut by the laser wire stripping machine. Then, the outer wall of the cable is successfully peeled off by the reverse rotation of the transmission roller 1 and the clamping of the transmission roller 2, and then the cable core is pushed out of the push box 16 by the forward rotation of the transmission roller 1, and the cable core is inserted into the terminal hole. At this time, the bottom pressure block 2 11 of the forming table 9 rises, driving the terminal of the connecting cable to contact the top stopper 12, completing the entire cable crimping work. With the rotation of the turntable 14 and the continuous arrangement of the transmission roller 1, the cable is cut off by the wire breaking mechanism 20 after reaching the specified length, realizing automatic loading and unloading of the crimped cable.

[0040] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A crimping device for a power cable harness, comprising a placement rack (1), characterized in that: A hydraulic cylinder (2) is fixed to the top of the placement rack (1) by bolts, and a press-forming material pushing mechanism (3) is fixed to the bottom of the hydraulic cylinder (2) by bolts; The top bracket of the placement rack (1) is slidably connected to a push cylinder (4), the side of the push cylinder (4) is fixedly connected to a forming column (5), and the outer wall of the forming column (5) is sleeved and slidably connected to a sleeve (6), one side of the sleeve (6) passes through the push cylinder (4) and is slidably connected to the inner wall of the push cylinder (4), the top of the placement rack (1) and located on the side of the push cylinder (4) is fixedly connected to a forming table (9), the side of the forming table (9) is slidably connected to a second pressing block (11), the top of the placement rack (1) is movably connected to a turntable (14) through a bearing, and the top of the turntable (14) is symmetrically fixed with a push box (16) by bolts.

2. A crimping device for a power cable harness according to claim 1, characterized in that: A fixed plate (15) is symmetrically mounted on the top of the turntable (14); a transmission roller set 1 (17) is movably connected to the outer wall of the push box (16); a transmission roller set 2 (18) is movably connected to the inner wall of the push box (16); a laser peeling machine (19) is fixed to the inner wall of the push box (16) by bolts; a wire breaking mechanism (20) is mounted inside the push box (16) and on the side of the laser peeling machine (19).

3. A crimping device for a power cable harness according to claim 2, characterized in that: The molding and pushing mechanism (3) comprises a die table (301), a pressing block (302) and a placement block (303); the end of the hydraulic cylinder (2) is fixed to the die table (301) by bolts; the bottom of the die table (301) is fixed to the pressing block (302) by bolts; the bottom of the die table (301) is also fixedly connected to the placement block (303); one side of the placement block (303) is rotatably connected to a limit block (305); the limit block (305) and a protrusion on the placement block (303) are sleeved and connected with a spring (304); the protrusion on the placement block (303) is in contact with the bottom of the limit block (305).

4. A crimping device for a power cable harness according to claim 3, characterized in that: A second spring (7) is installed in the push cylinder (4) and is located on the outer wall of the sleeve (6). A stop block (8) is installed on the side of the push cylinder (4), and one end of the stop block (8) passes through the push cylinder (4) and abuts against the side of the sleeve (6).

5. A crimping device for a power cable harness according to claim 4, characterized in that: A hydraulic cylinder 2 (10) is fixed to the bottom of the placement rack (1) by bolts, one end of the hydraulic cylinder 2 (10) is fixed to a pressure block 2 (11), a stopper (12) is fixed to one side of the forming table (9) by spot welding, and sliders (13) are symmetrically slidably connected to the inner walls of both sides of the forming table (9).

6. A crimping device for a power cable harness according to claim 5, characterized in that: The pressing block 1 (302) at the bottom of the mold platform (301) is arranged correspondingly to the top groove of the molding platform (9), and the limiting block (305) at the bottom of the mold platform (301) is arranged correspondingly to the side stop block (8) of the push cylinder (4).

7. A crimping device for a power cable harness according to claim 6, characterized in that: The crimping method of the power cable harness is: Online forming of crimped terminals: the terminal material to be crimped is moved to the top slider (13) of the forming table (9) via a conveyor belt, and a hydraulic cylinder (2) is used to push a pressing block (302) on the side of the die table (301) to contact the terminal material on the slider (13), so that the terminal material contacts the forming column (5) on the side of the push cylinder (4), and the forming of the wire harness crimping hole is completed. As the die table (301) rises, the upper limit block (305) of the placement block (303) contacts the side stop block (8) of the push cylinder (4), and the stop block (8) is pushed to contact the inner sleeve (6) of the push cylinder (4), so that the end of the sleeve (6) contacts the terminal formed on the forming column (5), and the terminal hole is moved sideways toward the bottom of the stop block (12); Online stripping and loading of crimped wire harness: The cable harness pre-placed on the fixed disk (15) is fed into the push box (16) by the rotation of the drive roller 1, and sequentially passes through the laser stripping machine (19) and the wire breaking mechanism (20) to the drive roller group 2 (18). The laser wire stripping machine is used to complete the cable skin cutting. Then, the drive roller 1 rotates in the opposite direction and the drive roller 2 is clamped to successfully peel off the outer wall of the cable. Then, the drive roller 1 rotates forward to push the cable core out of the push box (16) and insert the cable core into the terminal hole. At this time, the bottom pressure block 2 (11) of the forming table (9) rises, driving the terminal of the connected cable to contact the top stopper (12), completing the entire cable crimping work. With the rotation of the turntable (14) and the continuous wire arrangement of the drive roller 1, the cable is cut off after reaching the specified length by the wire breaking mechanism (20), realizing automatic loading and unloading of the crimped cable.

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