Connector terminal and wire harness crimping device

Abstract

The present invention relates to the technical field of terminal and wire harness crimping, specifically a connector terminal and wire harness crimping device, comprising a conveyor belt, the conveyor belt being symmetrically connected to a right-angle support plate, the conveyor belt being symmetrically provided with a spacer block group, the spacer block group being composed of a plurality of evenly arranged spacer blocks, the bottom of the vertical section of the right-angle support plate being symmetrically fixed with support columns in the front and back, each of the horizontal sections of the right-angle support plate being sequentially provided with a crimping mechanism and a straightening mechanism in the front and back, and an anti-falling mechanism being provided between the two horizontal sections of the right-angle support plate. In the present invention, during the process of the clamping member clamping the two ends of the wire harness, the inner clamping jaw is subjected to the resistance of the wire harness to compress the V-shaped spring sheet, forming an adaptive clamping force, and then the horizontal column continues to move outward and pull the two ends of the wire harness to be straightened, so as to achieve the gathering and straightening of the conductors, and ensure that the shape of the wire harness before crimping meets the crimping conditions, thereby improving the conductivity and tensile strength of the crimping area after the crimping is completed.

Description

Technical Field

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

[0002] Connectors are key components for reliable connection and signal transmission between electrical devices or circuits. Their core function is to ensure stable current and signal conduction. During connector manufacturing, the crimping of terminals and wiring harnesses is crucial: through a precise mechanical crimping process, the metal terminals are tightly secured to the wiring harness conductors, forming a low-resistance, high-strength physical connection. This process directly impacts the connector's electrical conductivity, tensile strength, and long-term reliability. Poor crimping can lead to increased contact resistance, signal attenuation, or disconnection, potentially causing equipment failure.

[0003] Existing equipment for crimping terminals and wire harnesses usually uses a cam mechanism to drive a vertically moving upper mold to cooperate with a fixed-position lower mold to quickly crimp the wire harness and terminal. At the same time, the wire harness is transported by a stepping conveyor belt with spacer blocks, and the terminal is continuously transported by a winding structure to a rolled terminal with multiple terminals. When the wire harness and terminal are moved to the position of the upper mold and the lower mold, the crimping action of the terminal and the wire harness is completed by moving the upper mold and the lower mold.

[0004] Although the above-mentioned equipment can realize rapid crimping of the wire harness and the terminal, since the wire harness only relies on the spacer block for unidirectional limitation during the transportation process, there is a large degree of freedom of lateral displacement. At the same time, the vibration generated by the equipment when the crimping mechanism is in operation is easily transmitted to the transportation path, causing the relative position of the wire harness and the terminal to shift, making it difficult to maintain precise alignment, resulting in inconsistent protruding lengths at both ends of the wire harness, thereby affecting the crimping accuracy and the mechanical stability of the connection after crimping; in addition, the above-mentioned equipment is not equipped with a pre-treatment device for the wire harness end. When the insulation layer at the end of the wire harness is stripped off, its exposed conductor is in a dispersed state. During the crimping process, the uneven distribution of the conductor may lead to insufficient contact area between the terminal and the conductor, thereby reducing the conductivity and tensile strength of the crimping area. Summary of the Invention

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a connector terminal and wire harness crimping device, including a conveyor belt, the conveyor belt is symmetrically connected to a right-angle support plate, the conveyor belt is symmetrically arranged with a spacer block group, the spacer block group is composed of a plurality of evenly arranged spacer blocks, the bottom of the vertical section of the right-angle support plate is symmetrically fixed with support columns at the front and back, each horizontal section of the right-angle support plate is sequentially provided with a crimping mechanism and a straightening mechanism at the front and rear, and an anti-falling mechanism is provided between the two horizontal sections of the right-angle support plate; the crimping mechanism includes an L-shaped fixing plate fixed to the top of the horizontal section of the right-angle support plate, the horizontal section of the L-shaped fixing plate is vertically fixed to the top of the horizontal section of the right-angle support plate The sliding connection is provided with a vertical column, and a reset structure is connected between the vertical column and the L-shaped fixed plate. A crimping upper mold is fixed to the bottom of the vertical column, and a crimping lower mold is installed at the position corresponding to the crimping upper mold on the top of the horizontal section of the right-angle support plate through a positioning seat. The right-angle support plate is provided with a power component that drives the vertical column to move up and down and completes the crimping; the straightening mechanism includes a limit plate fixed on the top of the horizontal section of the right-angle support plate, and a sliding component is connected to the limit plate. A guide component is connected between the sliding component and the vertical column, and clamping components are provided at the opposite ends of the two sliding components. The sliding component is driven to move by the guide component and cooperates with the clamping component to complete the straightening action.

[0006] Preferably, the anti-falling mechanism includes two front and rear groups of right-angle connecting rods fixed on the top of the horizontal section of the right-angle support plate, a mounting plate is fixed between the horizontal sections of each group of right-angle connecting rods, anti-falling plates are fixed symmetrically on the two mounting plates, and a limiting component is provided on the top of the front mounting plate for limiting the protruding length of the left and right ends of the wiring harness.

[0007] Preferably, the limiting member includes a right-angle connecting plate fixed on the top of the front mounting plate, the horizontal section of the right-angle connecting plate is vertically slidably connected to a connecting column, a limiting block is fixed to the bottom of the connecting column, a horizontal plate is fixed to the top of the connecting column, an adjusting stud is threadedly connected to the horizontal plate, and the adjusting stud is rotatably installed on the top of the horizontal section of the right-angle connecting plate.

[0008] Preferably, a right-angle support plate is fixed at the top of the horizontal section of the two right-angle support plates and at the position of the straightening mechanism, and an arc-shaped support plate is fixed on the opposite sides of the vertical sections of the two right-angle support plates. The right-angle support plate cooperates with the arc-shaped support plate to support and guide the retracted rows of terminals.

[0009] Preferably, the power component includes a motor installed on the horizontal section of the right-angle support plate through a motor box, a cam is fixed to the output end of the motor, a transmission column is rotatably installed at the position corresponding to the cam at the top of the horizontal section of the right-angle support plate through a mounting column, a push rod is fixed at the front end of the transmission column at the position corresponding to the cam, and the transmission column is rotatably connected to the vertical column.

[0010] Preferably, the sliding member includes a horizontal column horizontally slidably connected to the limit plate, a connecting block is fixed to one end of the horizontal column close to the conveyor belt, the top of the connecting block is connected to the guide member, and the side of the connecting block close to the conveyor belt is connected to the clamping member.

[0011] Preferably, the guide member includes a vertical plate fixed on the top of the connecting block, a guide rod is fixed to the side of the vertical plate close to the vertical column, a track plate cooperating with the guide rod is fixed to the side of the vertical column, a guide groove is provided on the track plate, and the guide groove cooperates with the guide rod to drive the horizontal column and the clamping member to move away from the conveyor belt.

[0012] Preferably, the clamping member includes inclined grooves symmetrically opened front and back on the side of the connecting block close to the conveyor belt, each inclined groove is connected to a clamping base through an embedded rod, and the side of the connecting block and the top of the horizontal section of the right-angle support plate are jointly provided with a guide structure for driving the clamping base to move up and down, and the two connecting blocks are symmetrically provided with clamping structures front and back. The inclined grooves cooperate with the embedded rods so that the clamping bases move downward and approach each other under the drive of the guide structure, and at the same time drive the clamping structure to complete the clamping and straightening actions.

[0013] Preferably, the guide structure includes a vertical groove opened in the connecting block near the side of the conveyor belt, a moving rod is vertically limited and slidably connected in the vertical groove, a synchronization rod is fixed to one end of the moving rod near the conveyor belt, the synchronization rod and the two clamping bases are both slidably connected, a guide plate is fixed symmetrically front and back with the vertical groove as the axis at the top of the horizontal section of the right-angle support plate, a track groove is opened on the guide plate, and transmission rods matching the track groove are symmetrically fixed at the front and rear ends of the synchronization rod.

[0014] Preferably, the clamping structure includes a limiting groove provided on the clamping base, an outer clamping jaw is vertically slidably connected to the limiting groove, a compression spring is connected to the outer clamping jaw and the bottom of the limiting groove, an inner clamping jaw is slidably connected to the side of the outer clamping jaw close to the vertical groove, a plurality of semicircular grooves are evenly arranged on the side of the inner clamping jaw close to the vertical groove, a plurality of V-shaped spring sheets are connected between the inner clamping jaw and the outer clamping jaw, a push rod 2 is fixed to the end of the outer clamping jaw away from the vertical groove, and a wedge-shaped guide block for driving the push rod 2 to move is fixed to the side of the guide plate corresponding to the push rod 2.

[0015] The beneficial effects of the present invention are: 1. The present invention drives the horizontal plate and the limit block to move up and down through the adjustment stud of the limit component, and can flexibly adjust the extension amount of both ends according to the length of different batches of wire harnesses; after the adjustment is completed, the wire harness is limited by the limit block and the anti-fall-off plate during the transportation process, ensuring that the wire harness is symmetrically distributed with the middle as the reference and the extension length of both ends is consistent, thereby providing an accurate length reference for subsequent crimping, ensuring that the lengths of the left and right ends of the wire harness are consistent, and then ensuring that the wire harness corresponds to the terminal position, improving the accuracy of crimping, and improving the mechanical stability of the connection between the wire harness and the terminal after crimping.

[0016] 2. In the present invention, when the vertical column rises, the horizontal column is driven by the guide groove to drive the clamping member to move outward, and the synchronization rod moves downward along the inclined section of the guide plate track groove, so that the clamping base moves toward each other under the action of the inclined groove and clamps the wire harness; in the process of the clamping member clamping the two ends of the wire harness, the inner clamping claw compresses the V-shaped spring sheet due to the resistance of the wire harness, forming an adaptive clamping force, and then the horizontal column continues to move outward and pulls the two ends of the wire harness to straighten, so that the conductors are gathered and straightened, ensuring that the shape of the wire harness before crimping meets the crimping conditions, thereby improving the conductivity and tensile strength of the crimping area after the crimping is completed.

[0017] 3. In the process of outward movement of the clamping structure of the present invention, the push rod contacts the wedge-shaped guide block, thereby driving the outer clamping jaw to deflect and drive the inner clamping jaw to twist the wire harness conductor in the same direction; at the same time, the semicircular groove of the inner clamping jaw increases the contact friction with the conductor, preventing relative sliding during the twisting process, further enhancing the conductor bundling effect, making the wire harness conductors with the insulation layer stripped closely arranged and straight, thereby improving the crimping quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] Figure 1 It is a schematic structural diagram of the first perspective of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the second viewing angle of the present invention.

[0021] Figure 3 It is a partial structural diagram of the right-angle support plate and the crimping mechanism in the present invention.

[0022] Figure 4 It is a structural schematic diagram of the right-angle support plate and the straightening mechanism in the present invention.

[0023] Figure 5 It is a partial cross-sectional view of the straightening mechanism along the moving rod and the embedded rod in the present invention.

[0024] Figure 6 It is a top view of the straightening mechanism in the present invention.

[0025] Figure 7 It is a partial cross-sectional view of the guide plate in the present invention.

[0026] Figure 8 It is a partial cross-sectional view of the straightening mechanism in the present invention.

[0027] Figure 9 It is a schematic diagram of the local working state of the present invention when crimping the terminal and the wire harness.

[0028] Figure 10 This is a schematic diagram of the structure after the terminal and wire harness are crimped.

[0029] In the figure: 1. conveyor belt; 11. right-angle support plate; 111. right-angle support plate; 112. arc-shaped support plate; 12. support column; 2. crimping mechanism; 21. L-shaped fixing plate; 211. vertical column; 212. crimping upper die; 213. positioning seat; 214. crimping lower die; 22. power component; 221. motor; 222. cam; 223. transmission column; 224. push rod 1; 3. straightening mechanism; 31. limit plate; 32. sliding component; 321. horizontal column; 322. connecting block; 33. guide component; 331. vertical plate; 332. guide rod; 333. track Plate; 334, guide groove; 34, clamping member; 341, inclined groove; 342, embedded rod; 343, clamping base; 344, vertical groove; 345, moving rod; 346, synchronization rod; 347, guide plate; 348, transmission rod; 349, outer clamping jaw; 350, inner clamping jaw; 351, push rod 2; 352, wedge-shaped guide block; 4, anti-falling mechanism; 41, right-angle connecting rod; 411, mounting plate; 412, anti-falling plate; 42, limiting member; 421, right-angle connecting plate; 422, connecting column; 423, limiting block; 424, horizontal plate; 425, adjusting stud. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0031] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 9 and Figure 10 , a connector terminal and wire harness crimping device includes a conveyor belt 1, which is symmetrically connected to a right-angle support plate 11 on the left and right sides of the conveyor belt 1, and a spacer block group is symmetrically arranged on the left and right sides of the conveyor belt 1, and the spacer block group is composed of a plurality of evenly arranged spacer blocks. The bottom of the vertical section of the right-angle support plate 11 is symmetrically fixed with a support column 12 front and back, and each horizontal section of the right-angle support plate 11 is sequentially provided with a crimping mechanism 2 and a straightening mechanism 3 in front and back. An anti-falling mechanism 4 is provided between the two horizontal sections of the right-angle support plates 11; a blanking baffle is commonly provided on the front side of the two horizontal sections of the right-angle support plates 11; a right-angle supporting plate 111 is fixed on the top of the horizontal sections of the two right-angle support plates 11 and at the position of the straightening mechanism 3, and an arc-shaped supporting plate 112 is fixed on the opposite sides of the vertical sections of the two right-angle support plates 11, and the retracted rows of terminals are supported and guided by the right-angle supporting plate 111 and the arc-shaped supporting plate 112.

[0032] The present invention completes the transmission of the wire harness through the conveyor belt 1 in conjunction with the spacer block group, so that the crimping mechanism 2 can quickly complete the crimping of the wire harness and the reeled terminal. At the same time, before crimping, the left and right ends of the crimped wire harness are straightened by the straightening mechanism 3, and the left and right ends of the crimped wire harness can be accurately positioned, thereby ensuring that the lengths of the left and right ends of the wire harness are consistent, making the crimping of the terminals and the two ends of the wire harness more accurate.

[0033] See Figure 1 and Figure 2 The anti-falling mechanism 4 includes two front and rear groups of right-angle connecting rods 41 fixed to the top of the horizontal section of the right-angle support plate 11. A mounting plate 411 is fixed between the horizontal sections of each group of right-angle connecting rods 41. Anti-falling plates 412 are fixed symmetrically on the two mounting plates 411. The anti-falling plates 412 are composed of a straight section and a front arc section. A limiting component 42 is provided on the top of the front mounting plate 411 for limiting the protruding length of the left and right ends of the wiring harness.

[0034] The limiting component 42 includes a right-angle connecting plate 421 fixed on the top of the front mounting plate 411, the horizontal section of the right-angle connecting plate 421 is vertically slidably connected to a connecting column 422, a limiting block 423 is fixed to the bottom of the connecting column 422, a horizontal plate 424 is fixed to the top of the connecting column 422, and an adjusting stud 425 is threadedly connected to the horizontal plate 424, and the adjusting stud 425 is rotatably installed on the top of the horizontal section of the right-angle connecting plate 421.

[0035] Specifically, the wire harness is first loaded in sequence through the external loading unit on the rear side, so that the wire harness is sequentially inserted between two adjacent limit blocks 423. At this time, the spacer block moves with the conveyor belt 1 and gradually drives the wire harness forward. A winding unit is provided on the front side for winding up multiple terminals in sequence in cooperation with the right-angle support plate 111 and the arc support plate 112 as the limit block 423 moves. When the wire harness moves to the position of the straightening mechanism 3 with the conveyor belt 1, the straightening mechanism 3 will complete the straightening action of the two ends of a single wire harness conductor, so that the left and right ends of the wire harness are straight and the wire harness conductors with the insulation layer stripped are gathered together. After the straightening is completed, the wire harness will move to the position of the crimping mechanism 2 together with the terminal, and then the crimping action of the corresponding terminal and the two ends of the wire harness will be completed through the crimping mechanism 2. After the crimping mechanism 2 completes the crimping of the terminal and the wire harness, the conveyor belt 1 cooperates with the anti-falling mechanism 4 and the unloading baffle to complete the unloading action of the wire harness and the terminal.

[0036] It should be noted that in order to ensure that the crimping mechanism 2 can complete the crimping action on each set of terminals and wire harnesses, the conveyor belt 1 needs to adopt a step-by-step type, and the external terminal winding unit needs to be intermittently wound at the same speed as the conveyor belt 1.

[0037] The anti-falling plate 412 cooperates with the spacer block and the conveyor belt 1 to stably convey the wire harness, thereby preventing the wire harness from falling during transportation, and ensuring that the wire harness is still in a stable state under the crimping action of the crimping mechanism 2, and the limiting component 42 cooperates with the straightening mechanism 3 on the left and right sides, so that when the straightening mechanism 3 straightens the two ends of the wire harness, the wire harness can be symmetrically distributed on the left and right ends with the middle position as the reference, and the distance extended by the left and right ends of the wire harness is equal and accurately aligned with the crimping position of the crimping mechanism 2.

[0038] Specifically, before conveying the same batch of wire harnesses, the adjusting screw 425 is first rotated according to the length of the wire harness, thereby driving the horizontal plate 424 and the limit block 423 to move up and down. At this time, the limit block 423 can adjust the length of the left and right ends of the wire harness according to the length of the wire harness. After the height adjustment of the limit block 423 is completed, the wire harness is conveyed forward through the external loading structure in conjunction with the conveyor belt 1 and the spacer block. During the conveying process, the anti-falling plate 412 will close the top of the wire harness in the two adjacent spacer blocks, thereby reducing the risk of the wire harness falling during transportation.

[0039] See Figure 1 、 Figure 2 and Figure 3 The crimping mechanism 2 includes an L-shaped fixing plate 21 fixed to the top of the horizontal section of the right-angle support plate 11. The horizontal section of the L-shaped fixing plate 21 is vertically slidably connected to a vertical column 211. A reset structure is connected between the vertical column 211 and the L-shaped fixing plate 21. A crimping upper mold 212 is fixed to the bottom of the vertical column 211. A crimping lower mold 214 is installed at the position corresponding to the crimping upper mold 212 at the top of the horizontal section of the right-angle support plate 11 through a positioning seat 213. The right-angle support plate 11 is provided with a power component 22 that drives the vertical column 211 to move back and forth up and down and complete the crimping; the reset structure consists of a square plate at the top of the vertical column 211 and a reset spring connected between the square plate and the horizontal section of the L-shaped fixing plate 21.

[0040] The power component 22 includes a motor 221 installed on the horizontal section of the right-angle support plate 11 through a motor box. A cam 222 is fixed to the output end of the motor 221. A transmission column 223 is rotatably installed at the position corresponding to the cam 222 at the top of the horizontal section of the right-angle support plate 11 through a mounting column. A push rod 224 is fixed to the front end of the transmission column 223 at the position corresponding to the cam 222. The transmission column 223 is rotatably connected to the vertical column 211.

[0041] The crimping upper mold 212 and the vertical column 211 can move back and forth quickly up and down under the driving action of the power component 22, so that the wire harness and the terminal can move between the crimping upper mold 212 and the crimping lower mold 214 when the crimping upper mold 212 and the vertical column 211 rise, thereby ensuring that the crimping lower mold 214 and the crimping upper mold 212 complete the crimping action on the wire harness and the terminal.

[0042] Specifically, when the straightening mechanism 3 cooperates with the limit block 423 to complete the straightening of the two ends of the wire harness and the determination of the length of the two ends of the wire harness, the wire harness and the terminal will continue to move forward under the action of the conveyor belt 1. At this time, the control motor 221 drives the cam 222 to rotate continuously. Then, during the rotation of the cam 222, the cam 222 pushes the pushed rod 224, thereby driving the transmission column 223 to rotate with the installation column as the center. As the transmission column 223 rotates, the transmission column 223 drives the vertical column 211 to move upward and stretch the reset spring. When the vertical column 211 moves upward, The vertical column 211 will drive the crimping upper mold 212 to separate from the crimping lower mold 214. At this time, the wire harness and the terminal will move to the position between the crimping upper mold 212 and the crimping lower mold 214 under the transmission action of the conveyor belt 1 and the winding action of the external winding unit. When the cam 222 and the push rod 224 are separated, the vertical column 211 will move downward quickly due to its own gravity and the elastic force of the return spring and drive the crimping upper mold 212 to press the wire harness and the terminal in turn. At this time, the crimping upper mold 212 cooperates with the crimping lower mold 214 to complete the crimping action of the wire harness and the terminal.

[0043] See Figure 2 、 Figure 4 and Figure 6 The straightening mechanism 3 includes a limiting plate 31 fixed to the top of the horizontal section of the right-angle support plate 11, a sliding member 32 is connected to the limiting plate 31, a guide member 33 is connected between the sliding member 32 and the vertical column 211, and clamping members 34 are provided at the opposite ends of the two sliding members 32. The sliding member 32 is driven to move by the guiding member 33 and cooperates with the clamping member 34 to complete the straightening action.

[0044] The sliding member 32 includes a horizontal column 321 horizontally slidably connected to the limit plate 31. A connecting block 322 is fixed to one end of the horizontal column 321 close to the conveyor belt 1. The top of the connecting block 322 is connected to the guide member 33, and the connecting block 322 is connected to the clamping member 34 near the side of the conveyor belt 1.

[0045] The guide member 33 includes a vertical plate 331 fixed to the top of the connecting block 322. A guide rod 332 is fixed to the side of the vertical plate 331 close to the vertical column 211. A track plate 333 that cooperates with the guide rod 332 is fixed to the side of the vertical column 211. A guide groove 334 is provided on the track plate 333.

[0046] Specifically, when the vertical column 211 moves upward, the conveyor belt 1 is in a stopped state, and the wire harness is located at the straightening mechanism 3. The vertical column 211 drives the track plate 333 to move upward. At this time, the track plate 333 will cooperate with the guide rod 332 through the guide groove 334 to drive the horizontal column 321 and the clamping member 34 to move away from the conveyor belt 1, thereby completing the straightening action of the two ends of the wire harness through the clamping member 34, and the clamping member 34 can make the wire harness in a straight state during the process of pulling the wire harness, thereby cooperating with the limit block 423 to complete the adjustment of the left and right ends of the wire harness.

[0047] See Figure 4-Figure 8 The clamping member 34 includes inclined grooves 341 symmetrically opened on the side of the connecting block 322 close to the conveyor belt 1. The two inclined grooves 341 are distributed in an inverted eight shape. Each inclined groove 341 is connected to a clamping base 343 through an embedded rod 342. The side of the connecting block 322 and the top of the horizontal section of the right-angle support plate 11 are jointly provided with a guide structure that drives the clamping base 343 to move up and down. The two connecting blocks 322 are symmetrically provided with clamping structures. Through the inclined grooves 341 and the embedded rods 342, the clamping base 343 moves downward and approaches each other under the driving action of the guide structure, and at the same time drives the clamping structure to complete the clamping and straightening actions.

[0048] The guiding structure includes a vertical groove 344 provided on the side of the connecting block 322 near the conveyor belt 1, and a moving rod 345 is vertically limited and slidably connected in the vertical groove 344. A synchronization rod 346 is fixed to one end of the moving rod 345 near the conveyor belt 1, and the synchronization rod 346 is slidably connected to the two clamping bases 343. A guide plate 347 is fixed symmetrically front and back with the vertical groove 344 as the axis at the top of the horizontal section of the right-angle support plate 11. A track groove is provided on the guide plate 347, and the track groove is composed of an inclined section and a horizontal section. Transmission rods 348 that match the track groove are symmetrically fixed at the front and rear ends of the synchronization rod 346.

[0049] The clamping member 34 is used to clamp the two ends of the wire harness, and as the horizontal column 321 moves away from the conveyor belt 1, the two ends of the wire harness are gradually straightened. During the transportation of the wire harness, the wire harness is located below the clamping member 34. At this time, the inclined groove 341 cooperates with the guide structure to enable the clamping structure and the clamping base 343 to be accurately aligned with the position of the wire harness, ensuring the accuracy of straightening the wire harness. Moreover, since the movement of the clamping base 343 is synchronously controlled by the guide structure and the inclined groove 341, the clamping base 343 can automatically complete the straightening action during the crimping process of the crimping mechanism 2, thereby improving the quality of the crimped terminals and wire harnesses without reducing the crimping efficiency.

[0050] Specifically, when the guide groove 334 presses the guide rod 332 and drives the horizontal column 321 and the clamping member 34 to move away from the conveyor belt 1, the transmission rod 348 is guided downward by the inclined section of the track groove, thereby driving the synchronization rod 346 to move downward. Since the synchronization rod 346 and the two clamping bases 343 are both slidably connected, the clamping base 343 moves downward synchronously with the downward movement of the synchronization rod 346. Due to the guiding effect of the inclined groove 341, the two clamping bases 343 are During the downward movement, it is guided by the embedded rod 342 and the inclined groove 341 and moves toward each other, thereby driving the two clamping structures to gradually clamp the two ends of the wire harness in the process of aligning downwardly with the two ends of the wire harness. After clamping is completed, as the horizontal column 321 continues to move away from the conveyor belt 1, the transmission rod 348 will move to the horizontal section of the track groove, and the upper and lower positions of the clamping base 343 will no longer change. Subsequently, the clamping structure moves synchronously with the horizontal column 321 and completes the straightening of the wire harness.

[0051] See Figure 6-Figure 8 The clamping structure includes a limiting groove on the clamping base 343, and an outer clamping jaw 349 is vertically slidably connected to the limiting groove, and a compression spring is connected to the outer clamping jaw 349 and the bottom of the limiting groove. The outer clamping jaw 349 is slidably connected to the inner clamping jaw 350 on the side close to the vertical groove 344, and a plurality of semicircular grooves are evenly arranged on the side of the inner clamping jaw 350 close to the vertical groove 344. A plurality of V-shaped spring sheets are connected between the inner clamping jaw 350 and the outer clamping jaw 349, and a push rod 2 351 is fixed on the end of the outer clamping jaw 349 away from the vertical groove 344. A wedge-shaped guide block 352 for driving the push rod 2 351 to move is fixed on the side of the guide plate 347 corresponding to the push rod 2 351. The two wedge guide blocks 352 corresponding to the front and rear positions are upside down, and a restraining groove for limiting the push rod 2 351 is provided on the side of the guide plate 347.

[0052] The clamping structure can straighten the two ends of the wire harness by clamping them. At the same time, the wedge-shaped guide block 352 cooperates with the push rod 351 to enable the outer clamping jaw 349 to cooperate with the inner clamping jaw 350 to achieve a twisting action, thereby further making the wire harness conductor converged and straightened, and the semicircular groove set on the inner clamping jaw 350 can limit the clamping of the conductor in the convergence, thereby preventing relative sliding between the inner clamping jaw 350 and the wire harness conductor, thereby improving the twisting effect of converging the wire harness conductor.

[0053] Specifically, when the two clamping bases 343 move toward each other at the same time during the downward movement, the outer clamping jaw 349 and the inner clamping jaw 350 will move synchronously due to the movement of the clamping base 343, so that the outer clamping jaw 349 and the inner clamping jaw 350 will gradually move toward the conductor of the wiring harness until the inner clamping jaw 350 and the conductor position of the wiring harness are in contact. Then, the two inner clamping jaws 350 cannot move further due to the obstruction of the wiring harness, so that the inner clamping jaw 350 and the outer clamping jaw 349 produce relative displacement and compress the V-shaped spring sheet, and then the inner clamping jaw 350 and the outer clamping jaw 349 will move with The clamping base 343 no longer moves downward, and moves synchronously with the horizontal column 321 in the direction away from the conveyor belt 1. At this time, the inner clamping jaw 350 will complete the straightening action of the wire harness, and the pushed rod 2 351 will move away from the bundle slot. When the pushed rod 2 351 moves in the direction away from the conveyor belt 1, the pushed rod 2 351 on the front and rear sides will be pushed by the two upside-down wedge-shaped guide blocks 352 at the same time, so that the outer clamping jaws 349 on both sides deflect in the same direction and drive the inner clamping jaw 350 to complete the twisting action of the wire harness conductor, thereby ensuring the straightening and bundling effect of the wire harness conductor.

[0054] It should be noted that after the inner clamp 350 and the outer clamp 349 complete the straightening and contracting of the wiring harness conductor, the inner clamp 350 and the outer clamp 349 and the wiring harness conductor will be separated. At this time, the straightened wiring harness is driven forward by the conveyor belt 1, and the vertical column 211 is at the top position. Then the conveyor belt 1 will drive the wiring harness forward to the crimping upper mold 212 and the crimping lower mold 214. After that, the vertical column 211 will be able to quickly return to its original position and complete the crimping action of the wiring harness and the terminal. At this time, the inner clamp 350 and the outer clamp 349 will quickly return to their original position through the guiding action of the guide member 33, and will avoid contact with the wiring harness during the process of the inner clamp 350 and the outer clamp 349 returning to their original position.

[0055] The working steps of the present invention are as follows: the first step is to rotate the adjustment screw 425 of the limiting component 42 according to the length of the wire harness before crimping the wire harness and the terminal, drive the horizontal plate 424 and the limiting block 423 to move up and down, and determine the protruding length of the two ends of the wire harness; after the height adjustment of the limiting block 423 is completed, the wire harness is sequentially clamped between the adjacent spacer blocks of the conveyor belt 1 through the external loading unit located on the rear side, and at the same time, the external winding unit on the front side intermittently winds up the rows of terminals at the synchronous speed with the conveyor belt 1; the conveyor belt 1 drives the spacer block group to move the wire harness forward in a step-by-step manner, and closes the top of the wire harness through the straight section and arc section of the anti-fall-off plate 412 to prevent it from falling off during transportation.

[0056] In the second step, when the wire harness moves to the position of the straightening mechanism 3 along with the conveyor belt 1 and the spacer block, the right-angle support plate 111 and the arc-shaped support plate 112 cooperate with each other to support the terminal and move forward according to the conveying direction of the conveyor belt 1. At the same time, the anti-fall-off mechanism 4 presses down the middle section of the wire harness to ensure that the wire harness is symmetrically distributed with the middle as the reference and the length of the spacer blocks extending from the left and right ends is consistent with the crimping length.

[0057] In the third step, when the wire harness moves to the position of the straightening mechanism 3 along with the conveyor belt 1 and the spacer block, the vertical column 211 of the crimping mechanism 2 is driven to rise by the power component 22, driving the guide groove 334 of the track plate 333 to push the guide rod 332, so that the horizontal column 321 moves outward; the synchronization rod 346 moves downward along the inclined section of the track groove of the guide plate 347, and drives the clamping base 343 to move toward each other through the inclined groove 341. After the inner clamping jaw 350 of the clamping structure contacts the wire harness conductor, it is clamped by the V-shaped spring sheet; when the horizontal column 321 continues to move outward, it is acted upon by the push rod 2 351 and the wedge-shaped guide block 352, and the outer clamping jaw 349 and the inner clamping jaw 350 twist the wire harness conductor to make it gather and straighten.

[0058] In the fourth step, after the left and right ends of the wire harness are straightened, the wire harness and the terminal move to the position of the crimping mechanism 2 along with the conveyor belt 1; the motor 221 drives the cam 222 to rotate, pushing the pushed rod 224 to drive the transmission column 223 to rotate, so that the vertical column 211 rises and stretches the reset spring, and the crimping upper mold 212 is separated from the crimping lower mold 214; after the wire harness and the terminal enter the crimping position, the cam 222 disengages from the pushed rod 224, and the vertical column 211 drives the crimping upper mold 212 to press down quickly under the action of the reset spring, and cooperates with the crimping lower mold 214 to complete the crimping of the terminal and the wire harness.

[0059] In the fifth step, after the crimping of the wire harness and the terminal is completed, the conveyor belt 1 continues to move step by step, and the anti-falling plate 412 of the anti-falling mechanism 4 maintains the stability of the wire harness; when the wire harness moves to the unloading baffle position, the crimped finished product is unloaded from between the spacer blocks through the continuous transmission of the conveyor belt 1 and the guiding effect of the unloading baffle, completing the continuous unloading process.

[0060] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered by the scope of protection of the present invention.

Claims

1. A connector terminal and wire harness crimping device, comprising a conveyor belt, a right-angle support plate symmetrically connected to the conveyor belt, a spacer block group symmetrically arranged on the conveyor belt, the spacer block group consisting of a plurality of evenly arranged spacer blocks, and a support column symmetrically fixed to the bottom of the vertical section of the right-angle support plate. Each of the horizontal sections of the right-angle support plate is provided with a pressing mechanism and a straightening mechanism in front and back, and an anti-falling mechanism is provided between the two horizontal sections of the right-angle support plate; The crimping mechanism includes an L-shaped fixing plate fixed to the top of the horizontal section of the right-angle support plate, the horizontal section of the L-shaped fixing plate is vertically slidably connected to a vertical column, a reset structure is connected between the vertical column and the L-shaped fixing plate, a crimping upper die is fixed to the bottom of the vertical column, a crimping lower die is installed at the position corresponding to the crimping upper die at the top of the horizontal section of the right-angle support plate through a positioning seat, and the right-angle support plate is provided with a power component that drives the vertical column to move back and forth up and down and complete the crimping; The straightening mechanism includes a limit plate fixed to the top of the horizontal section of the right-angle support plate, a sliding member connected to the limit plate, a guide member connected between the sliding member and the vertical column, and clamping members provided at opposite ends of the two sliding members. The guide member drives the sliding member to move and cooperates with the clamping member to complete the straightening action. The sliding member includes a horizontal column horizontally slidably connected to the limit plate, a connecting block is fixed to one end of the horizontal column close to the conveyor belt, the top of the connecting block is connected to the guide member, and the side of the connecting block close to the conveyor belt is connected to the clamping member; The guide member includes a vertical plate fixed to the top of the connecting block, a guide rod fixed to the side of the vertical plate close to the vertical column, a track plate fixed to the side of the vertical column to cooperate with the guide rod, and a guide groove is opened on the track plate. The guide groove cooperates with the guide rod to drive the horizontal column and the clamping member to move away from the conveyor belt; The clamping member includes inclined grooves symmetrically opened in the front and back sides of the connecting block near the side of the conveyor belt. Each inclined groove is connected to a clamping base through an embedded rod. The side of the connecting block and the top of the horizontal section of the right-angle support plate are jointly provided with a guide structure for driving the clamping base to move up and down. The two connecting blocks are symmetrically provided with clamping structures. The inclined grooves are combined with the embedded rods so that the clamping bases move downward and approach each other under the drive of the guide structure, and at the same time drive the clamping structure to complete the clamping and straightening actions.

2. A connector terminal and wire harness crimping device according to claim 1, characterized in that: The anti-falling mechanism includes two groups of front and rear right-angle connecting rods fixed on the top of the horizontal section of the right-angle support plate. A mounting plate is fixed between the horizontal sections of each group of right-angle connecting rods. Anti-falling plates are fixed symmetrically on the two mounting plates. A limiting component is provided on the top of the front mounting plate for limiting the protruding length of the left and right ends of the wiring harness.

3. A connector terminal and wire harness crimping device according to claim 2, characterized in that: The limiting component includes a right-angle connecting plate fixed on the top of the front mounting plate, the horizontal section of the right-angle connecting plate is vertically slidably connected to a connecting column, a limiting block is fixed to the bottom of the connecting column, a horizontal plate is fixed to the top of the connecting column, an adjusting stud is threaded on the horizontal plate, and the adjusting stud is rotatably installed on the top of the horizontal section of the right-angle connecting plate.

4. A connector terminal and wire harness crimping device according to claim 1, characterized in that: A right-angle support plate is fixed at the top of the horizontal section of the two right-angle support plates and at the position of the straightening mechanism, and an arc-shaped support plate is fixed on the opposite sides of the vertical sections of the two right-angle support plates. The right-angle support plate cooperates with the arc-shaped support plate to support and guide the retracted rows of terminals.

5. A connector terminal and wire harness crimping device according to claim 1, characterized in that: The power component includes a motor installed on the horizontal section of the right-angle support plate through a motor box, a cam is fixed on the output end of the motor, a transmission column is rotatably installed on the position corresponding to the cam at the top of the horizontal section of the right-angle support plate through a mounting column, a push rod is fixed on the front end of the transmission column at the position corresponding to the cam, and the transmission column is rotatably connected to the vertical column.

6. A connector terminal and wire harness crimping device according to claim 1, characterized in that: The guide structure includes a vertical groove opened in the connecting block near the side of the conveyor belt, a moving rod is vertically limited and slidably connected in the vertical groove, a synchronization rod is fixed to one end of the moving rod near the conveyor belt, the synchronization rod and the two clamping bases are both slidably connected, a guide plate is fixed symmetrically front and back with the vertical groove as the axis at the top of the horizontal section of the right-angle support plate, a track groove is opened on the guide plate, and transmission rods matching the track groove are symmetrically fixed at the front and rear ends of the synchronization rod.

7. A connector terminal and wire harness crimping device according to claim 6, characterized in that: The clamping structure includes a limiting groove provided on the clamping base, an outer clamping jaw is vertically slidably connected to the limiting groove, a compression spring is connected to the outer clamping jaw and the bottom of the limiting groove, an inner clamping jaw is slidably connected to the side of the outer clamping jaw close to the vertical groove, a plurality of semicircular grooves are evenly arranged on the side of the inner clamping jaw close to the vertical groove, a plurality of V-shaped spring sheets are connected between the inner clamping jaw and the outer clamping jaw, a push rod 2 is fixed to the end of the outer clamping jaw away from the vertical groove, and a wedge-shaped guide block for driving the push rod 2 to move is fixed to the side of the guide plate corresponding to the push rod 2.

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