A terminal crimping apparatus for thick wire harness

Abstract

The application discloses a terminal crimping equipment for thick wire harnesses and relates to the technical field of wire harness processing.The terminal crimping equipment comprises a workbench, a terminal loading mechanism, a terminal crimping mechanism and a wire harness loading mechanism.The terminal loading mechanism comprises a fixing strip, a telescopic cylinder one, a loading strip, a telescopic cylinder two and a linkage strip, and is used for simultaneously placing multiple terminals to improve the placing efficiency of the terminals.The wire harness loading mechanism comprises a hydraulic cylinder two, a lifting plate, a positioning strip, a loading plate, a placing strip and a material blocking strip, and is used for simultaneously placing multiple wire harnesses to improve the placing efficiency of the wire harnesses.The terminal crimping mechanism comprises a supporting plate, a supporting rod, a hydraulic cylinder one and a crimping strip, and is used for simultaneously crimping terminals on the end portions of multiple wire harnesses to improve the crimping efficiency of the terminals.In summary, the terminal crimping equipment for thick wire harnesses has the characteristics of reasonable design, ingenious structure, convenient use and high working efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of wire harness processing, and more specifically to a terminal crimping device for coarse wire harnesses. Background Technology

[0002] Wire harnesses are wiring components used in circuits to connect various electrical devices. They consist of an insulating sheath, terminals, wires, and insulating wrapping material. Wire harnesses are formed by crimping wires and terminals. Current processes typically involve manual crimping of wires and terminals, resulting in generally low wire harness quality. Some processes combine manual and mechanical methods to achieve better crimping results, but only one terminal can be crimped to one end of a wire harness at a time, leading to extremely low work efficiency. Furthermore, due to the variety of terminal types, most existing machines are designed for closed-type terminals, with few devices available for crimping open-type terminals. Summary of the Invention

[0003] The purpose of this invention is to provide a terminal crimping device for thick wire harnesses to solve the above-mentioned defects caused by the prior art.

[0004] A terminal crimping device for thick wire harnesses includes a workbench, a terminal loading mechanism, a terminal crimping mechanism, and a wire harness loading mechanism, wherein:

[0005] The terminal placement mechanism is located on the upper side of the workbench and includes a fixing bar, a telescopic cylinder one, a placement bar, a telescopic cylinder two, and a linkage bar. The terminal placement mechanism is used to simultaneously place multiple terminals to improve the efficiency of terminal placement.

[0006] The wire harness placement mechanism is located above the terminal placement mechanism and includes a hydraulic cylinder, a lifting plate, a positioning bar, a placement plate, a placement bar, and a retaining bar. The wire harness placement mechanism is used to simultaneously place multiple wire harnesses to improve the placement efficiency of the wire harnesses.

[0007] The terminal crimping mechanism is located beside the wire harness placement mechanism and includes a support plate, a support rod, a hydraulic cylinder, and a crimping strip. The terminal crimping mechanism is used to simultaneously crimp terminals onto the ends of multiple wire harnesses to improve the crimping efficiency of the terminals.

[0008] Preferably, the fixing bar is a steel section and is horizontally fixed to the upper side of the workbench. L-shaped rotating bars are symmetrically hinged to both ends of the fixing bar. A cantilever plate is horizontally welded to the other end of the rotating bar. An L-shaped fixing plate is vertically fixed to the upper end of the cantilever plate. A telescopic cylinder is horizontally installed on the outside of the fixing plate. A hinge seat is connected to the end of the piston rod of the telescopic cylinder. An L-shaped hinge bar is connected to the hinge seat. A second hinge seat is welded to the lower part of the fixing plate. A second hinge bar is connected to the second hinge seat. The other end of the first hinge bar is connected to the other end of the second hinge bar. The loading bar is a hollow structure and is horizontally installed on the upper side of the hinge bar. A row of adsorption holes is evenly provided on the upper side of the loading bar, and a row of loading columns is vertically fixed on the side of the row of adsorption holes. An air suction pipe is connected to the side of the loading bar. An L-shaped fixing plate is horizontally fixed in the middle of the fixing bar, extending backward. A telescopic cylinder is horizontally installed on the rear side of the fixing plate. The linkage bar is horizontally connected to the end of the piston rod of the telescopic cylinder. The linkage bar is provided with a long linkage groove. A linkage rod is vertically fixed at the other end of the rotating bar. The linkage rod is slidably connected in the linkage groove.

[0009] Preferably, the support plate is horizontally positioned above the workbench. Several support rods are evenly distributed between the support plate and the workbench. The upper end of each support rod is connected to the lower side of the support plate via a flange seat 1, and the lower end of each support rod is connected to the upper side of the workbench via a flange seat 2. A pair of hydraulic cylinders are symmetrically installed on the upper side of the support plate. A pair of crimping strips are installed correspondingly at the piston rod ends of the two hydraulic cylinders. A row of V-shaped crimping grooves is evenly distributed at the bottom of each crimping strip. Guide posts are symmetrically installed at the top of each crimping strip, and the guide posts are slidably connected to the support plate via guide sleeves.

[0010] Preferably, the second hydraulic cylinder is arranged parallel between the two first hydraulic cylinders and installed on the upper side of the support plate. The lifting plate is horizontally connected to the end of the piston rod of the second hydraulic cylinder. Guide columns are symmetrically installed on the top of the lifting plate, and the guide columns slide with the support plate through guide sleeves. Lifting frames are symmetrically installed at the front and rear ends of the lifting plate. A pair of positioning strips are provided and symmetrically connected to the bottom of the front and rear lifting frames. A row of positioning platforms is evenly installed on the upper side of the positioning strip. A frustum-shaped positioning block is installed in the center of the upper side of the positioning platform. An air intake hole is coaxially provided in the middle of the positioning block. An air intake pipe is connected to the positioning strip below each positioning block. Second, the suction hole extends downward and is connected to the second suction pipe. The upper side of the loading plate is evenly distributed with U-shaped loading grooves. The bottom of the loading groove is evenly provided with a row of second adsorption holes. The lower part of the loading groove is provided with parallel air flow holes, and sealing screws are connected to both ends of the air flow holes. The second adsorption holes extend downward and are connected to the air flow holes. A pair of placement strips are provided and are symmetrically installed on the lower side of the loading plate. A row of placement grooves is evenly provided on the lower side of the placement strips. The placement grooves are conical structures and cooperate with the positioning blocks. The placement grooves extend upward and are connected to the air flow holes. A pair of baffle strips are provided and are symmetrically installed on the left and right sides of the loading plate.

[0011] Preferably, a hook spring connects the left and right linkage rods.

[0012] Preferably, a sealing ring is coaxially embedded on the upper side of the positioning platform.

[0013] Preferably, the lower surface of the baffle strip is 2-3mm higher than the bottom surface of the loading groove, and the distance between the two baffle strips is 3-5mm greater than the length of the wire harness.

[0014] Compared with the prior art, the terminal crimping device for thick wire harnesses in this invention has the following advantages:

[0015] ① A terminal placement mechanism is used to simultaneously place multiple terminals, improving placement efficiency. Specifically, the piston rod of telescopic cylinder two extends, causing the linkage bar and the linkage rods on both sides to move forward, which in turn causes the rotating bars and the cantilever plate on both sides to rotate horizontally forward by 90 degrees. This causes the placement bars on both sides to also rotate horizontally forward by 90 degrees simultaneously. Then, the piston rods of telescopic cylinder one on both sides extend, causing the placement bars on both sides to rotate vertically forward by 90 degrees. Next, the terminals are manually fitted onto the placement columns on both sides. The terminals will be in a vertical position under their own weight. Then, The air inside the carrier strip is drawn out by the suction pipe, and a negative pressure condition is created at the suction hole, so that the terminal is firmly attached to the carrier strip. Then, the piston rods of the two telescopic cylinders retract and drive the carrier strips on both sides to rotate vertically backward by 90 degrees. Next, the piston rods of the two telescopic cylinders retract and drive the linkage bar and the linkage rods on both sides to move backward, thereby driving the rotating bar and the cantilever plate on both sides to rotate horizontally backward by 90 degrees, so that the carrier strips on both sides also rotate horizontally backward by 90 degrees in sync.

[0016] ② A wire harness placement mechanism is used to simultaneously place multiple wire harnesses, thereby improving placement efficiency. Specifically, the placement plate is manually removed, and the wire harnesses are placed in the corresponding slots on the plate, ensuring that the ends of the wire harnesses are inside the baffle strips. Then, the placement plate is moved above the positioning strips, and the positioning blocks are inserted into the placement slots. Next, the air inside the placement plate is sucked out through the second suction pipe, creating a negative pressure condition at the second suction hole, which firmly adheres the wire harnesses to the placement plate, thus completing the simultaneous placement of multiple wire harnesses.

[0017] ③ A terminal crimping mechanism is used to simultaneously crimp terminals onto the ends of multiple wire harnesses, thereby improving the crimping efficiency. Specifically, the piston rod of hydraulic cylinder two extends and moves the lifting frame and the loading plate downwards until the two ends of the wire harness on the loading plate are placed inside the terminals on both sides. Then, the piston rods of hydraulic cylinder one on both sides extend and move the crimping strips on both sides downwards until the terminals on both sides are inserted into the crimping grooves on the crimping strips on both sides. The terminals deform under force and are crimped onto the ends of the wire harnesses, thus completing the simultaneous crimping of terminals onto the ends of multiple wire harnesses. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall front view of the present invention.

[0020] Figures 3 to 5 This is a schematic diagram of the terminal placement mechanism in this invention.

[0021] Figures 6 to 7 This is a schematic diagram of the terminal crimping mechanism in this invention.

[0022] Figures 8 to 11 This is a schematic diagram of the wire harness placement mechanism in this invention.

[0023] in:

[0024] 10-Workbench;

[0025] 20-Terminal placement mechanism; 201-Fixing bar; 202-Rotating bar; 203-Suspension plate; 204-Fixing plate one; 205-Telescopic cylinder one; 206-Hinge seat one; 207-Hinge bar one; 208-Hinge seat two; 209-Hinge bar two; 210-Placement bar; 210a-Suction hole one; 211-Placement column; 212-Suction pipe one; 213-Fixing plate two; 214-Telescopic cylinder two; 215-Linkage bar; 215a-Linkage groove; 216-Linkage rod; 217-Hook spring;

[0026] 30-Terminal crimping mechanism; 301-Support plate; 302-Support rod; 303-Flange seat one; 304-Flange seat two; 305-Hydraulic cylinder one; 306-Crimping strip; 306a-Crimping groove; 307-Guide post one; 308-Guide sleeve one;

[0027] 40-Wire harness loading mechanism; 401-Hydraulic cylinder II; 402-Lifting plate; 403-Guide column II; 404-Guide sleeve II; 405-Lifting frame; 406-Positioning strip; 407-Positioning platform; 408-Positioning block; 408a-Suction hole; 409-Suction pipe II; 410-Sealing ring; 411-Loading plate; 411a-Loading groove; 411b-Adsorption hole II; 411c-Air flow hole; 412-Sealing screw; 413-Placement strip; 413a-Placement groove; 414-Blocking strip;

[0028] 50-terminal;

[0029] 60-Wire harness. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 11 As shown, a terminal crimping device for thick wire harnesses includes a workbench 10, a terminal placement mechanism 20, a terminal crimping mechanism 30, and a wire harness placement mechanism 40, wherein:

[0032] The terminal placement mechanism 20 is located on the upper side of the workbench 10 and includes a fixing bar 201, a telescopic cylinder 1 205, a placement bar 210, a telescopic cylinder 214, and a linkage bar 215. The terminal placement mechanism 20 is used to simultaneously place multiple terminals 50 to improve the placement efficiency of the terminals 50.

[0033] The wire harness placement mechanism 40 is located above the terminal placement mechanism 20 and includes a hydraulic cylinder 401, a lifting plate 402, a positioning bar 406, a placement plate 411, a placement bar 413, and a baffle bar 414. The wire harness placement mechanism 40 is used to simultaneously place multiple wire harnesses 60 to improve the placement efficiency of the wire harnesses 60.

[0034] The terminal crimping mechanism 30 is located on the side of the wire harness placement mechanism 40 and includes a support plate 301, a support rod 302, a hydraulic cylinder 305, and a crimping strip 306. The terminal crimping mechanism 30 is used to simultaneously crimp terminals 50 onto the ends of multiple wire harnesses 60 to improve the crimping efficiency of the terminals 50.

[0035] In this embodiment, the fixing bar 201 is a C-shaped steel and is horizontally fixed to the upper side of the workbench 10. L-shaped rotating bars 202 are symmetrically hinged to both ends of the fixing bar 201. A cantilever plate 203 is horizontally welded to the other end of the rotating bar 202. An L-shaped fixing plate 204 is vertically fixed to the upper end of the cantilever plate 203. A telescopic cylinder 205 is horizontally installed on the outside of the fixing plate 204. A hinge seat 206 is connected to the end of the piston rod of the telescopic cylinder 205. An L-shaped hinge bar 207 is connected to the hinge seat 206. A second hinge seat 208 is welded to the lower part of the fixing plate 204. A second hinge bar 209 is connected to the second hinge seat 208. The other end of the first hinge bar 207 is connected to the other end of the second hinge bar 209. The loading bar 210 is a hollow structure and is horizontally installed on the upper side of the hinge bar 207. A row of adsorption holes 210a is evenly provided on the upper side of the loading bar 210, and a row of loading columns 211 is vertically fixed on the side of the row of adsorption holes 210a. The side of the loading bar 210 is connected to the suction pipe 212. The middle of the fixing bar 201 is horizontally fixed with an L-shaped fixing plate 213 that extends backward. The telescopic cylinder 214 is horizontally installed on the rear side of the fixing plate 213. The linkage bar 215 is horizontally connected to the end of the piston rod of the telescopic cylinder 214. The linkage bar 215 is provided with a long linkage groove 215a. The other end of the rotating bar 202 is also vertically fixed with a linkage rod 216, which is slidably connected in the linkage groove 215a.

[0036] In this embodiment, the support plate 301 is horizontally positioned above the workbench 10. Several support rods 302 are evenly distributed between the support plate 301 and the workbench 10. The upper end of each support rod 302 is connected to the lower side of the support plate 301 via a flange seat 303, and the lower end of each support rod 302 is connected to the upper side of the workbench 10 via a flange seat 304. A pair of hydraulic cylinders 305 are symmetrically installed on the upper side of the support plate 301. A pair of crimping strips 306 are correspondingly installed at the piston rod ends of the two hydraulic cylinders 305. A row of V-shaped crimping grooves 306a is evenly distributed at the bottom of the crimping strip 306. Guide posts 307 are symmetrically installed at the top of the crimping strip 306. The guide posts 307 are slidably connected to the support plate 301 via guide sleeves 308.

[0037] In this embodiment, the second hydraulic cylinder 401 is parallel to the two first hydraulic cylinders 305 and installed on the upper side of the support plate 301. The lifting plate 402 is horizontally connected to the end of the piston rod of the second hydraulic cylinder 401. Guide columns 403 are symmetrically installed at the top of the lifting plate 402, and the guide columns 403 slide with the support plate 301 via guide sleeves 404. Lifting frames 405 are symmetrically installed at both ends of the lifting plate 402. A pair of positioning strips 406 are symmetrically connected to the bottom of the two lifting frames 405. A row of positioning platforms 407 is evenly installed on the upper side of the positioning strips 406. A frustum-shaped positioning block 408 is centrally installed on the upper side of each positioning platform 407. An air intake hole 408a is coaxially provided in the middle of each positioning block 408. An air intake pipe 409 is connected to the lower part of each positioning block 408 of the positioning strips 406. The suction hole 408a extends downward and is connected to the suction pipe 409. U-shaped loading grooves 411a are evenly distributed on the upper side of the loading plate 411. A row of adsorption holes 411b is evenly arranged at the bottom of the loading groove 411a. Airflow holes 411c are arranged parallel to the bottom of the loading groove 411a, and sealing screws 412 are connected to both ends of the airflow holes 411c. The adsorption holes 411b extend downward and are connected to the airflow holes 411c. A pair of placement strips 413 are symmetrically installed on the lower side of the loading plate 411. A row of placement grooves 413a is evenly arranged on the lower side of the placement strips 413. The placement grooves 413a have a conical structure and cooperate with the positioning block 408. The placement grooves 413a extend upward and are connected to the airflow holes 411c. A pair of baffle strips 414 are symmetrically installed on the left and right sides of the loading plate 411.

[0038] In this embodiment, a hook spring 217 is connected between the two left and right linkage rods 216. By adding a hook spring 217 between the two left and right linkage rods 216, the two linkage rods 216 have a tendency to move closer to each other, thus avoiding mechanical jamming or stuckness.

[0039] In this embodiment, a sealing ring 410 is coaxially embedded on the upper side of the positioning platform 407. By adding the sealing ring 410, when the placement strip 413 is placed on the positioning platform 407, airflow cannot pass through the gap between the placement strip 413 and the positioning platform 407, thereby achieving a certain sealing effect.

[0040] In this embodiment, the lower surface of the baffle strip 414 is 2-3 mm higher than the bottom surface of the loading groove 411a, which does not affect the normal insertion of the end of the wire harness 60 into the terminal 50. The distance between the left and right baffle strips 414 is 3-5 mm greater than the length of the wire harness 60, which does not affect the normal insertion of the middle part of the wire harness 60 into the loading groove 411a.

[0041] In this embodiment, the terminal crimping device for thick wire harnesses is used in practical applications as follows:

[0042] Step 1: The piston rod of the telescopic cylinder 214 extends, causing the linkage bar 215 and the linkage rods 216 on both sides to move forward. This causes the rotating bars 202 and the suspension plate 203 on both sides to rotate horizontally forward by 90 degrees, so that the loading bars 210 on both sides also rotate horizontally forward by 90 degrees simultaneously. Next, the piston rods of the telescopic cylinders 205 on both sides extend, causing the loading bars 210 on both sides to rotate vertically forward by 90 degrees. Then, the terminals 50 are manually fitted onto the loading columns 211 on both sides. The terminals 50 will be in a vertical state under their own weight. Finally, the suction pipe 212 sucks away the contents. The air inside the placement bar 210 creates a negative pressure condition at the adsorption hole 210a, causing the terminal 50 to be firmly adsorbed onto the placement bar 210. Then, the piston rods of the telescopic cylinders 205 on both sides retract and drive the placement bars 210 on both sides to rotate vertically backward by 90 degrees. Next, the piston rods of the telescopic cylinder 214 retract and drive the linkage bar 215 and the linkage rods 216 on both sides to move backward, thereby driving the rotating bar 202 and the suspension plate 203 on both sides to rotate horizontally backward by 90 degrees, so that the placement bars 210 on both sides also rotate horizontally backward by 90 degrees in sync. This completes the placement of multiple terminals 50 at the same time.

[0043] Step 2: Manually remove the loading plate 411 and manually place the wire harness 60 in the loading slot 411a on the loading plate 411, ensuring that the end of the wire harness 60 is inside the baffle strip 414. Then, move the loading plate 411 above the positioning strip 406 and insert the positioning block 408 into the placement slot 413a. Next, use the suction pipe 409 to suck away the air in the loading plate 411 and create a negative pressure condition at the suction hole 411b, so that the wire harness 60 is firmly adsorbed on the loading plate 411. This completes the placement of multiple wire harnesses 60 at the same time.

[0044] Step 3: The piston rod of hydraulic cylinder 401 extends and drives the lifting frame 405 and the loading plate 411 to move downward until the two ends of the wire harness 60 on the loading plate 411 are placed on the inner side of the terminals 50 on both sides.

[0045] Step 4: The piston rods of the hydraulic cylinders 305 on both sides extend and drive the crimping strips 306 on both sides to move downwards until the terminals 50 on both sides are inserted into the crimping grooves 306a on the crimping strips 306 on both sides. The terminals 50 deform due to the force and are pressed onto the ends of the wire harness 60. This completes the process of simultaneously crimping terminals 50 onto the ends of multiple wire harnesses 60.

[0046] Step 5: The piston rods of the hydraulic cylinders 305 on both sides retract and drive the crimping strips 306 on both sides to move upward until they rise to the initial height. Then, the wire harness on the release board 411 is removed manually.

[0047] Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or equivalent to the scope of this invention are included in this invention.

Claims

1. A terminal crimping device for thick wire harnesses, characterized in that: It includes a workbench (10), a terminal placement mechanism (20), a terminal crimping mechanism (30), and a wire harness placement mechanism (40), wherein: The terminal placement mechanism (20) is located on the upper side of the workbench (10) and includes a fixing bar (201), a telescopic cylinder one (205), a placement bar (210), a telescopic cylinder two (214) and a linkage bar (215). The terminal placement mechanism (20) is used to simultaneously place multiple terminals (50) to improve the placement efficiency of the terminals (50). The wire harness placement mechanism (40) is located above the terminal placement mechanism (20) and includes a hydraulic cylinder (401), a lifting plate (402), a positioning bar (406), a placement plate (411), a placement bar (413), and a baffle bar (414). The wire harness placement mechanism (40) is used to simultaneously place multiple wire harnesses (60) to improve the placement efficiency of the wire harnesses (60). The terminal crimping mechanism (30) is located on the side of the wire harness placement mechanism (40) and includes a support plate (301), a support rod (302), a hydraulic cylinder (305) and a crimping strip (306). The terminal crimping mechanism (30) is used to simultaneously crimp terminals (50) onto the ends of multiple wire harnesses (60) to improve the crimping efficiency of the terminals (50). The fixing bar (201) is a C-shaped steel and is horizontally fixed to the upper side of the workbench (10). The two ends of the fixing bar (201) are symmetrically hinged with L-shaped rotating bars (202). The other end of the rotating bar (202) is horizontally welded with a cantilever plate (203). The upper end of the cantilever plate (203) is vertically fixed with an L-shaped fixing plate (204). The telescopic cylinder (205) is horizontally installed on the outside of the fixing plate (204). The piston rod end of the telescopic cylinder one (205) is connected to a hinge seat one (206), and an L-shaped hinge bar one (207) is connected to the hinge seat one (206). The lower part of the fixing plate one (204) is welded to a hinge seat two (208), and a hinge bar two (209) is connected to the hinge seat two (208). The other end of the hinge bar one (207) is connected to the other end of the hinge bar two (209). The loading bar ( 210) is a hollow structure and is horizontally installed on the upper side of the hinge bar (207). A row of adsorption holes (210a) is evenly provided on the upper side of the loading bar (210), and a row of loading columns (211) is vertically fixed on the side of the row of adsorption holes (210a). A suction pipe (212) is connected to the side of the loading bar (210). A rearwardly extending, L-shaped fixing plate (213) is horizontally fixed in the middle of the fixing bar (201). The telescopic cylinder (214) is horizontally installed on the rear side of the fixing plate (213). The linkage bar (215) is horizontally connected to the end of the piston rod of the telescopic cylinder (214). The linkage bar (215) is provided with a long strip-shaped linkage groove (215a). The other end of the rotating bar (202) is also vertically fixed with a linkage rod (216). The linkage rod (216) is slidably connected in the linkage groove (215a).

2. The terminal crimping device for thick wire harnesses according to claim 1, characterized in that: The support plate (301) is horizontally positioned above the workbench (10). Several support rods (302) are evenly distributed between the support plate (301) and the workbench (10). The upper end of each support rod (302) is connected to the lower side of the support plate (301) via flange seat one (303), and the lower end of each support rod (302) is connected to the upper side of the workbench (10) via flange seat two (304). A pair of hydraulic cylinders (305) are provided. The crimping strip (306) is symmetrically installed on the upper side of the support plate (301). The crimping strip (306) is provided with a pair and is installed on the piston rod ends of the two hydraulic cylinders (305). The bottom of the crimping strip (306) is uniformly provided with a row of V-shaped crimping grooves (306a). The top of the crimping strip (306) is symmetrically installed with guide posts (307) in the front and back. The guide posts (307) are slidably connected to the support plate (301) by means of guide sleeves (308).

3. The terminal crimping device for thick wire harnesses according to claim 2, characterized in that: The second hydraulic cylinder (401) is arranged parallel between the two first hydraulic cylinders (305) and installed on the upper side of the support plate (301). The lifting plate (402) is horizontally connected to the end of the piston rod of the second hydraulic cylinder (401). The top of the lifting plate (402) is symmetrically equipped with guide columns (403) at the front and rear. The guide columns (403) slide with the support plate (301) through the guide sleeve (404). The lifting frames (405) are symmetrically installed at the front and rear ends of the lifting plate (402). The positioning strip (406) is provided in pairs and symmetrically connected to the bottom of the front and rear lifting frames (405). A row of positioning platforms (407) is evenly installed on the upper side of the positioning strip (406). A frustum-shaped positioning block (408) is installed in the center of the upper side of the positioning platform (407). An air suction hole (408a) is coaxially provided in the middle of the positioning block (408). An air suction pipe (409) is connected to the positioning strip (406) below each positioning block (408). The hole (408a) extends downward and connects to the second suction pipe (409). U-shaped loading grooves (411a) are evenly distributed on the upper side of the loading plate (411). A row of adsorption holes (411b) is evenly arranged at the bottom of the loading groove (411a). Airflow holes (411c) are arranged parallel to the bottom of the loading groove (411a), and sealing screws (412) are connected to both ends of the airflow holes (411c). The second adsorption hole (411b) extends downward and connects to the airflow holes (409). 411c) is connected, and the placement strip (413) is provided in pairs and is symmetrically installed on the lower side of the loading plate (411). The placement strip (413) is provided with a row of placement grooves (413a) evenly on the lower side. The placement groove (413a) is a conical structure and cooperates with the positioning block (408). The placement groove (413a) extends upward and is connected to the air passage hole (411c). The baffle strip (414) is provided in pairs and is symmetrically installed on the left and right sides of the loading plate (411).

4. The terminal crimping device for thick wire harnesses according to claim 1, characterized in that: A hook spring (217) connects the two linkage rods (216) on the left and right sides.

5. The terminal crimping device for thick wire harnesses according to claim 3, characterized in that: A sealing ring (410) is coaxially embedded on the upper side of the positioning platform (407).

6. The terminal crimping device for thick wire harnesses according to claim 3, characterized in that: The lower surface of the baffle strip (414) is 2-3 mm higher than the bottom surface of the loading groove (411a), and the distance between the two baffle strips (414) is 3-5 mm greater than the length of the wire harness (60).

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