Multi-station terminal feeding and pressing equipment and method

Abstract

The invention relates to the technical field of electric wire and terminal assembling and processing equipment, and provides multi-station terminal feeding and pressing equipment and method.The multi-station terminal feeding and pressing equipment comprises a scattered particle positioning disc, a chain type positioning disc, a pushing assembly, a punching assembly, a clamping assembly, a feeding assembly, a terminal carrying clamp, a terminal pressing machine and a wire harness carrying clamp; the particle positioning disc is used for positioning particle terminals; the chain type positioning disc is used for positioning the chain type terminal; the material pushing assembly is used for linearly pushing the chain type terminal, and the punching assembly is used for cutting the chain type terminal; the clamping assembly is used for clamping the terminal on the scattered particle positioning disc; the feeding assembly is used for transferring the terminal clamped by the clamping assembly to the terminal carrying clamp; the terminal carrying clamp is used for positioning the granular terminals and the chain type terminals, and the wire harness carrying clamp is used for positioning the wire harnesses. The pressing device has the effect of facilitating pressing of terminals of different specifications and wires.

Description

Technical Field

[0001] This application relates to the field of wire and terminal assembly and processing equipment technology, and in particular to a multi-station terminal feeding and pressing equipment and method. Background Technology

[0002] As an important consumable in electronic circuit equipment, wires are widely used in signal transmission or power connection in traditional automobiles and new energy vehicles. To facilitate convenient and quick connection of electrical circuits, terminal blocks are commonly used. When fixing and connecting wire terminals, a terminal crimping machine is generally used, which uses a power-driven mechanism to move a punch up and down to squeeze the terminal and wire end, causing them to deform locally and tightly fasten together.

[0003] In the existing technology, when common terminal crimping machines encounter situations where multiple specifications of wires need to be crimped with multiple specifications of terminals (such as chain terminals and loose terminals), the only solution is to manually change different specifications of crimping dies. This operation method is not only costly and space-consuming, but also has problems such as long stamping waiting time, low stamping efficiency, long debugging time, and frequent die changes, which affect production efficiency and therefore needs to be improved. Summary of the Invention

[0004] To facilitate the crimping of terminals of different specifications with wires and improve production efficiency, this application provides a multi-station terminal feeding and crimping device.

[0005] Firstly, the multi-station terminal feeding and pressing equipment provided in this application adopts the following technical solution: A multi-station terminal feeding and pressing device includes a base, a bulk positioning plate, a chain positioning plate, a pushing assembly, a punching assembly, a clamping assembly, a feeding assembly, a terminal handling fixture, a terminal pressing machine, and a wire harness handling fixture. The bulk positioning plate is mounted on the base and has several positioning slots for positioning the bulk terminals. The chain positioning plate is located on one side of the bulk positioning plate and is used to position the chain terminals. The pushing assembly is connected to the chain positioning plate and is used to linearly push the chain terminals. The punching assembly is used to cut the chain terminals. The clamping assembly is located on the machine base and is used to clamp the terminals on the bulk positioning plate. The feeding assembly is located between the bulk positioning plate and the chain positioning plate and is used to transfer the terminals clamped by the clamping assembly to the terminal handling fixture and to clamp the cut terminals on the chain positioning plate. The terminal handling fixture is horizontally movable on the machine base and is located below the terminal pressing machine. It is provided with grooves for loose terminals and chain terminals to mate. The wire harness handling fixture is movably mounted on the machine base and is located on one side of the terminal handling fixture. It is used to position the wire harness. The moving direction of the wire harness handling fixture is parallel to that of the terminal handling fixture. The terminal pressing machine is used to press the terminals and wire harness together.

[0006] By adopting the above technical solution, when it is necessary to press loose terminals and wire harnesses together, the clamping assembly clamps the loose terminals on the loose positioning plate, and then the clamping assembly transfers the loose terminals to the feeding assembly. The feeding assembly transfers the terminals to the terminal transport fixture, and by controlling the horizontal movement of the terminal transport fixture, the feeding assembly can accurately position the loose terminals in the corresponding loose grooves.

[0007] Meanwhile, the wire harness is placed on the wire harness handling fixture automatically or manually by a robotic arm, and then the wire harness handling fixture is moved to the position corresponding to the terminal handling fixture so that the wire harness and the loose terminals correspond. Finally, the terminal crimping machine is started to crimp the terminals and wire harness.

[0008] The operation for crimping chain terminals and wire harnesses differs slightly from that for loose terminals. When crimping chain terminals and wire harnesses, the chain terminals are directly gripped on the chain positioning plate using the feeding assembly, without the need for a separate gripping assembly. It's important to note that since the chain terminals are fixedly connected to the material strip at intervals, the rows of chain terminals need to be cut to allow for individual feeding. The chain terminals are laid out on the chain positioning plate, and the area between the chain terminal and the material strip is punched using a punching assembly, allowing the feeding assembly to smoothly grip individual chain terminals. After cutting, the pushing assembly can push the chain terminals horizontally a certain distance on the chain positioning plate in a specific direction to facilitate subsequent cutting actions and achieve continuous production.

[0009] Preferably, the pushing assembly includes a first cylinder, a first slide block, a pressure plate, a second cylinder, a connecting block, a fixing block, and a locking block. The first slide block is slidably connected to the machine base via a slide rail. The chain positioning disc is disposed on the first slide block. The first cylinder is connected to the first slide block and is used to drive the first slide block to move horizontally. The pressure plate is disposed on the first slide block and located above the chain terminal. The pressure plate is used to press the chain terminal on the chain positioning disc. The second cylinder is disposed on the first slide block, and the connecting block is disposed on the first slide block. On the piston rod of the two cylinders, the second cylinder is used to drive the connecting block to move horizontally. The fixed block is rotatably connected to the connecting block by a torsion spring. The locking block is provided on the fixed block and is located between the pressure plate and the punching assembly. The locking block is provided with a tapered plate. The tip of the tapered plate is pressed into the through hole on the surface of the chain terminal strip. The inclined surface of the tapered plate is located on the side of the locking block closer to the pressure plate. When the tip of the tapered plate is locked in the hole of the strip, the second cylinder drives the locking block to move in the direction closer to the punching assembly.

[0010] By adopting the above technical solution, in the initial state, the conical plate of the clamping block is clamped in the through hole of the material strip (the material strip has through holes distributed at intervals along its own length direction); when it is necessary to push the chain terminal, the second cylinder directly controls the connecting block to move horizontally forward. Since the conical plate is clamped on the material strip, the clamping block can overcome the friction between the pressure plate and the chain terminal to do work, driving the entire material strip to move horizontally and realize the pushing of material.

[0011] The fixed block and the connecting block are hinged to each other by means of a torsion spring. When the second cylinder drives the connecting block to move horizontally backward (the direction of movement of the connecting block is opposite to the direction of movement of the chain terminal), the fixed block will squeeze the torsion spring and the connecting block to rotate relative to each other. Due to the existence of the inclined surface of the conical plate, the tip of the conical plate can be disengaged from the through hole on the material strip. As the connecting block continues to move backward, the tip of the conical plate can fall into another through hole of the material strip, realizing the continuous pushing of the jamming block.

[0012] It should be noted that when the fixing block and the locking block move backward, the pressure exerted by the torsion spring on the conical plate against the chain terminal is less than that exerted by the pressure plate against the chain terminal. This ensures that the locking block and the chain terminal move relative to each other. In other words, through the cooperation of the various components, the second cylinder can only drive the locking block to advance the material belt forward. During the backward movement of the locking block, the frictional force between the locking block and the chain terminal is insufficient to move the material belt backward because of the pressure exerted by the pressure plate.

[0013] Preferably, the clamping assembly includes an X-axis guide rail, an X-axis slide block, a Y-axis guide rail, a Y-axis slide block, a Z-axis guide rail, a Z-axis slide block, and a first clamping cylinder. The X-axis slide block is slidably connected to the X-axis guide rail via a linear motor. The Y-axis guide rail is disposed on the X-axis slide block and is perpendicular to the X-axis guide rail. The Y-axis slide block is slidably connected to the Y-axis guide rail. The Z-axis guide rail is disposed on the Y-axis slide block and is flexibly mounted on the Z-axis guide rail. The first clamping cylinder is disposed on the Z-axis slide block and is used to clamp the terminal.

[0014] By adopting the above technical solution, during material handling, the X-axis slide moves along the X-axis guide rail in the X-axis direction, the Y-axis slide moves along the Y-axis guide rail in the Y-axis direction, and the Z-axis slide moves along the Z-axis guide rail in the Z-axis direction, thereby realizing the three-axis movement of the first clamping cylinder, which facilitates the first gripper cylinder to smoothly clamp the loose terminal below.

[0015] Preferably, the feeding assembly includes a linear guide rail, a second slide block, a rotary cylinder, and a second clamping cylinder. The linear guide rail is horizontally arranged and parallel to the X-axis guide rail. The second slide block is slidably connected to the linear guide rail. The rotary cylinder is disposed on the second slide block and connected to the second clamping cylinder. The rotary cylinder is used to drive the second clamping cylinder to rotate. The second clamping cylinder is used to clamp the terminal on the first clamping cylinder.

[0016] By adopting the above technical solution, after the clamping assembly clamps the loose terminals, the first clamping cylinder is positioned directly above the second clamping cylinder, and the Z-axis slide moves downward, causing the terminals to be clamped by the second clamping cylinder. Then, the rotary cylinder drives the second clamping cylinder to rotate at a specific angle so that the terminals are aligned with the terminal transport fixture. Finally, the second slide is controlled to move along the linear guide rail and approach the terminal transport fixture. When the terminals and wire harness are being pressed together, the second clamping cylinder can clamp the terminals, achieving positioning and preventing the terminals from falling off due to reaction force during the terminal pressing machine's pressing process.

[0017] When it is necessary to clamp the chain terminal, the rotary cylinder is first used to drive the second clamping cylinder toward the chain positioning plate. Then, the first cylinder is used to drive the entire first slide to move horizontally and approach the second clamping cylinder so that the second clamping cylinder can clamp the single chain terminal. After being punched by the punching component, the chain terminal and the material strip are separated from each other, and subsequent transfer can be carried out.

[0018] Preferably, the punching assembly includes a punching cylinder, a punch, and a punching blade. The punch is connected to the piston rod of the punching cylinder, and the punch is movable up and down. The punching blade is located below the punch and above the chain terminal. The punching blade is movably mounted on the chain positioning plate, and the moving direction of the punching blade is the same as the moving direction of the punch. The punch drives the punching blade to punch the chain terminal.

[0019] By adopting the above technical solution, the punching cylinder can control the punch to move downward and squeeze the punching blade, thereby achieving the separation of the chain terminal and the material strip.

[0020] Preferably, it also includes a limiting block, which is disposed on the chain positioning disk and has a limiting groove. The punching cutter is connected to the limiting block through a first compression spring, and the punching cutter moves along the limiting groove.

[0021] By adopting the above technical solution, the existence of the limiting groove can limit the movement of the punching blade, ensuring that the punching blade moves in a straight line. During the process of the punch pressing down on the punching blade, the first compression spring will be compressed to generate elastic potential energy. When the punch moves up away from the punching blade, the elastic force of the first compression spring can drive the punching blade to reset, so as to facilitate subsequent cutting.

[0022] Preferably, it further includes a positioning block and a second compression spring. The positioning block is movably connected to the punch through the second compression spring. One end of the positioning block is provided with a positioning slot, which is used to position the chain terminal.

[0023] By adopting the above technical solution, when the punching cylinder controls the punch to move downward, the positioning block will contact the chain terminal before the punching blade, thereby positioning the chain terminal. That is, before the punching blade punches, the chain terminal to be cut is positioned by the positioning block. The presence of the positioning block can increase the stability of the second clamping cylinder in clamping the chain terminal.

[0024] As the piston rod of the punching cylinder continues to extend, the punch moves further down and presses against the cutting blade, thus successfully cutting off the connection between the chain terminal and the strip. During the continued downward movement of the cutting blade, the second compression spring is compressed, allowing the positioning block to move relative to the punch. This ensures that the positioning block presses firmly against the chain terminal without interfering with the punching action of the punch and cutting blade.

[0025] Preferably, it also includes a third cylinder, the base is provided with a T-slot, the bottom of the terminal handling fixture is connected to a T-block, the T-block is disposed in the T-slot; the third cylinder is connected to the terminal handling fixture and is used to drive the terminal handling fixture to move linearly.

[0026] By adopting the above technical solution, the third cylinder can control the horizontal movement of the terminal handling fixture, thereby changing the relative position of the terminal handling fixture and the second clamping cylinder. The T-block and T-slot cooperate with each other to achieve stable movement of the terminal handling fixture.

[0027] Preferably, the wire harness handling fixture is provided with grippers for holding the wire harness.

[0028] By adopting the above technical solution, the gripper can hold the wire harness, fix the position of the wire harness, and prevent the wire harness from shifting position when the wire harness and the terminal are pressed together, thus ensuring the pressing effect of the terminal.

[0029] Secondly, this application also provides a multi-station terminal feeding and pressing method, which uses a multi-station terminal feeding and pressing device with all the above-described structures to press terminals and wire harnesses together, including the following steps: S1. According to production needs, the clamping component clamps the loose terminals on the loose positioning plate and then transfers the terminals to the feeding component; the feeding component transfers the terminals to the terminal handling fixture, and by controlling the horizontal movement of the terminal handling fixture, the feeding component can accurately position the terminals in the corresponding grooves. S2. Simultaneously, the wire harness is placed on the wire harness handling fixture by a robotic arm or manually. The wire harness handling fixture is then moved to the position corresponding to the terminal handling fixture. Finally, the terminal crimping machine is started to crimp the terminals and wire harness.

[0030] In summary, this application includes at least one of the following beneficial technical effects: (1) By setting up a bulk positioning plate, a chain positioning plate, a pushing component, a punching component, a clamping component, a feeding component, a terminal handling fixture, a terminal pressing machine and a wire harness handling fixture, the automatic switching and pressing of chain and bulk terminals can be realized, reducing manual intervention, significantly improving production efficiency and reducing production costs.

[0031] (2) By setting a limit block, the existence of the limit groove can limit the movement of the punching cutter, ensuring that the punching cutter moves in a straight line.

[0032] (3) By setting T-blocks and T-slots, the T-blocks and T-slots cooperate with each other to achieve stable movement of the terminal handling fixture. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the pressing device in the embodiments of this application; Figure 2 This is a partial structural schematic diagram of the pressing device in the embodiments of this application; Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle section; Figure 4 This is a schematic diagram of the internal structure of the pressing device in the embodiments of this application; Figure 5 This is a schematic diagram of the pusher assembly and chain positioning disc in the embodiments of this application; Figure 6 yes Figure 5 A structural diagram from another perspective.

[0034] Reference numerals: 1. Machine base; 2. Bulk positioning disc; 3. Chain positioning disc; 4. Pushing assembly; 41. First cylinder; 42. First slide; 43. Pressure plate; 44. Second cylinder; 45. Connecting block; 46. Fixing block; 47. Clamping block; 5. Punching assembly; 51. Punching cylinder; 52. Punch; 53. Punching blade; 6. Clamping assembly; 61. X-axis guide rail; 62. X-axis slide; 63. Y-axis guide rail; 64. Y-axis slide; 65. Z-axis guide rail; 66. Z-axis slide; 67. First clamping cylinder; 7. Feeding assembly; 71. Linear guide rail; 72. Second slide; 73. Rotary cylinder; 74. Second clamping cylinder; 8. Terminal handling fixture; 9. Terminal crimping machine; 10. Wire harness handling fixture; 11. Third cylinder; 12. T-slot; 13. T-block; 14. Torsion spring; 15. Conical plate; 16. Limiting block; 17. Limiting groove; 18. Positioning block; 19. Second compression spring; 20. Material strip. Detailed Implementation

[0035] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0036] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0039] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0040] This application discloses a multi-station terminal feeding and pressing device. (Refer to...) Figures 1 to 4 The pressing equipment includes a base 1, a bulk positioning disc 2, a chain positioning disc 3, a pushing assembly 4, a punching assembly 5, a clamping assembly 6, a feeding assembly 7, a terminal handling fixture 8, a terminal pressing machine 9, and a wire harness handling fixture 10. The base 1 serves as a carrier and is fixedly mounted on the ground. The bulk positioning disc 2 is mounted on the base 1 and has several positioning slots. These slots are spaced apart along the length and width of the bulk positioning disc 2 and are used to clamp and position the bulk terminals. The chain positioning disc 3 is located on one side of the bulk positioning disc 2 and is used to position the chain terminals.

[0041] A chain positioning disc 3 is mounted on the machine base 1. Located on one side of the bulk positioning disc 2, the chain positioning disc 3 is used to position the chain terminals, which are spread out on it. A feeding assembly 4 is connected to the chain positioning disc 3 and is used to linearly push the chain terminals; a punching assembly 5 is located on the path of the chain terminals and is used to cut them.

[0042] The clamping assembly 6 is mounted on the base 1 and is used to clamp the terminals on the bulk positioning plate 2; the feeding assembly 7 is located between the bulk positioning plate 2 and the chain positioning plate 3 and is used to transfer the terminals clamped by the clamping assembly 6 to the terminal handling fixture 8, and to clamp the cut terminals on the chain positioning plate 3.

[0043] The terminal handling fixture 8 is horizontally movably mounted on the base 1, located below the terminal crimping machine 9, and is provided with grooves for loose terminals and chain terminals to mate with. The wire harness handling fixture 10 is movably mounted on the base 1, located to one side of the terminal handling fixture 8; the wire harness handling fixture 10 is equipped with grippers for holding the wire harness and positioning it. The wire harness handling fixture 10 moves parallel to the terminal handling fixture 8, and the terminal crimping machine 9 is used to crimp the terminals and wire harness. The wire harness handling fixture 10 can be moved using a ball screw drive, while the terminal crimping machine 9 is existing equipment and can be directly applied to this embodiment.

[0044] When it is necessary to press the loose terminals and wire harnesses together, the clamping assembly 6 clamps the loose terminals on the loose positioning plate 2, and then the clamping assembly 6 transfers the loose terminals to the feeding assembly 7. The feeding assembly 7 transfers the terminals to the terminal transport fixture 8, and by controlling the horizontal movement of the terminal transport fixture 8, the feeding assembly 7 can accurately position the loose terminals in the corresponding loose grooves.

[0045] Meanwhile, the wire harness is placed on the wire harness handling fixture 10 automatically or manually by a robotic arm, and then the wire harness handling fixture 10 is moved to the position corresponding to the terminal handling fixture 8 so that the wire harness and the loose terminals correspond to each other. Finally, the terminal pressing machine 9 is started to press the terminals and wire harness together.

[0046] The operation for crimping chain terminals and wire harnesses differs slightly from that for loose terminals. When crimping chain terminals and wire harnesses, the chain terminals are directly gripped on the chain positioning disc 3 using the feeding assembly 7, without the need for the gripping assembly 6. It should be noted that since the chain terminals are fixedly connected to the material strip 20 at intervals, the rows of chain terminals need to be cut for individual feeding. The chain terminals are laid out on the chain positioning disc 3, and the punching assembly 5 punches the area between the chain terminals and the material strip 20, allowing the feeding assembly 7 to smoothly grip individual chain terminals. After cutting, the pushing assembly 4 can push the chain terminals horizontally a certain distance on the chain positioning disc 3 in a specific direction to facilitate subsequent cutting operations and achieve continuous production.

[0047] Combination Figure 5 and Figure 6Specifically, the feeding assembly 4 includes a first cylinder 41, a first slide block 42, a pressure plate 43, a second cylinder 44, a connecting block 45, a fixing block 46, and a locking block 47. The first slide block 42 is slidably connected to the machine base 1 via a slide rail. The chain positioning disc 3 is installed on the first slide block 42. The first cylinder 41 is connected to the first slide block 42 and is used to drive the first slide block 42 to move horizontally. The pressure plate 43 is installed on the first slide block 42 and is located above the chain terminal. The pressure plate 43 is used to press the chain terminal on the chain positioning disc 3. The second cylinder 44 is installed on the first slide block 42. The connecting block 45 is fixed on the piston rod of the second cylinder 44. The second cylinder 44 is used to drive the connecting block 45 to move horizontally. The moving direction of the connecting block 45 is the same as the moving direction of the first slide block 42.

[0048] The fixing block 46 is rotatably connected to the connecting block 45 via a torsion spring 14. The locking block 47 is fixed to the fixing block 46 and is located between the pressure plate 43 and the punching assembly 5. The locking block 47 is provided with a tapered plate 15, the tip of which is engaged in a through hole on the surface of the chain terminal strip 20. The inclined surface of the tapered plate 15 is located on the side of the locking block 47 closer to the pressure plate 43. When the tip of the tapered plate 15 is engaged in the hole of the strip 20, the second cylinder 44 drives the locking block 47 to move in the direction closer to the punching assembly 5.

[0049] In the initial state, the conical plate 15 of the locking block 47 is locked in the through hole of the material strip 20 (the material strip 20 has through holes spaced apart along its own length direction); when it is necessary to push the chain terminal, the second cylinder 44 directly controls the connecting block 45 to move horizontally forward. Since the conical plate 15 is locked on the material strip 20, the locking block 47 can overcome the friction between the pressure plate 43 and the chain terminal to do work, driving the entire material strip 20 to move horizontally and realize the pushing of material.

[0050] The fixed block 46 and the connecting block 45 are hinged to each other by means of the torsion spring 14. When the second cylinder 44 drives the connecting block 45 to move horizontally backward (the direction of movement of the connecting block 45 is opposite to the direction of movement of the chain terminal), the fixed block 46 will squeeze the torsion spring 14 and the connecting block 45 to rotate relative to each other. Due to the existence of the inclined surface of the conical plate 15, the tip of the conical plate 15 can be disengaged from the through hole on the material strip 20. As the connecting block 45 continues to move backward, the tip of the conical plate 15 can fall into another through hole of the material strip 20, realizing the continuous pushing of the clamping block 47.

[0051] It should be noted that when the fixing block 46 and the locking block 47 move backward, the pressure exerted by the torsion spring 14 on the tapered plate 15 against the chain terminals is less than that exerted by the pressure plate 43 against the chain terminals. This ensures that the locking block 47 and the chain terminals move relative to each other. In other words, through the cooperation of the various components, the second cylinder 44 can only drive the locking block 47 to advance the material belt 20 forward. During the backward movement of the locking block 47, the frictional force between the locking block 47 and the chain terminals is insufficient to move the material belt 20 backward because of the pressure exerted by the pressure plate 43.

[0052] The punching assembly 5 includes a punching cylinder 51, a punch 52, and a punching blade 53. The punch 52 is connected to the piston rod of the punching cylinder 51, and the punch 52 is vertically movable. The punching blade 53 is located below the punch 52 and above the chain terminal. The punching blade 53 is movably mounted on the chain positioning plate 3, and its movement direction is the same as that of the punch 52. The punch 52 drives the punching blade 53 to punch the chain terminal. In this embodiment, a limit block 16 is installed on the chain positioning plate 3, and a limit groove 17 is formed on the limit block 16 for the punching blade 53 to move. A first compression spring is installed on the limit block 16, and its two ends are connected to the punching blade 53 and the limit block 16, respectively. The elastic force of the first compression spring is parallel to the movement direction of the punching blade 53. The punching cylinder 51 can control the punch 52 to move downward and squeeze the punching blade 53, thereby separating the chain terminal and the material strip 20. The cylinder is equipped with a stroke control mechanism, which can control the cylinder piston rod to stop at a predetermined position, realizing precise mechanical actions (such as clamping, pushing, lifting, etc.) and providing continuous, stable and reliable pressure. Typical stroke control mechanisms include, but are not limited to, mechanical stops, magnetic switches with solenoid valves, and displacement sensors with controllers. These are existing technologies and will not be elaborated upon here.

[0053] The presence of the limiting groove 17 can limit the movement of the punching blade 53, ensuring that the punching blade 53 moves in a straight line. When the punch 52 presses down on the punching blade 53, the first compression spring will be compressed to generate elastic potential energy. When the punch 52 moves up away from the punching blade 53, the elastic force of the first compression spring can drive the punching blade 53 to reset, so as to facilitate subsequent cutting.

[0054] The punch 52 is equipped with a positioning block 18 and a second compression spring 19. The positioning block 18 is movably connected to the punch 52 via the second compression spring 19, and the direction of the spring force of the second compression spring 19 is parallel to the direction of movement of the punch 52. A positioning slot is provided at the lower end of the positioning block 18, which is used to position the chain terminal. When the punching cylinder 51 controls the punch 52 to move downward, the positioning block 18 will contact the chain terminal before the punching blade 53, thus positioning the chain terminal. That is, before the punching blade 53 punches, the chain terminal to be cut is positioned by the positioning block 18. The presence of the positioning block 18 increases the stability of the second clamping cylinder 74 in clamping the chain terminal and prevents the chain terminal from detaching from the second clamping cylinder 74 during the punching process.

[0055] The clamping assembly 6 includes an X-axis guide rail 61, an X-axis slide 62, a Y-axis guide rail 63, a Y-axis slide 64, a Z-axis guide rail 65, a Z-axis slide 66, and a first clamping cylinder 67. The X-axis guide rail 61 is fixed to the base 1, and the X-axis slide 62 is slidably connected to the X-axis guide rail 61 via a linear motor. The Y-axis guide rail 63 is fixedly mounted on the X-axis slide 62 and is perpendicular to the X-axis guide rail 61, and the Y-axis slide 64 is slidably connected to the Y-axis guide rail 63. The Z-axis guide rail 65 is fixedly mounted on the Y-axis slide 64, and the Z-axis slide 66 is flexibly mounted on the Z-axis guide rail 65. The first clamping cylinder 67 is mounted on the Z-axis slide 66 and is used to clamp the terminal. During material handling, the X-axis slide 62 is controlled to move along the X-axis guide rail 61 in the X-axis direction, the Y-axis slide 64 is controlled to move along the Y-axis guide rail 63 in the Y-axis direction, and the Z-axis slide 66 is controlled to move along the Z-axis guide rail 65 in the Z-axis direction, thereby realizing the three-axis movement of the first clamping cylinder 67, which facilitates the first gripper cylinder to smoothly clamp the loose particle terminals below.

[0056] The feeding assembly 7 includes a linear guide rail 71, a second slide block 72, a rotary cylinder 73, and a second clamping cylinder 74. The linear guide rail 71 is horizontally arranged and parallel to the X-axis guide rail 61. The second slide block 72 is slidably connected to the linear guide rail 71. The rotary cylinder 73 is mounted on the second slide block 72 and connected to the second clamping cylinder 74. The rotary cylinder 73 is used to drive the second clamping cylinder 74 to rotate. The second clamping cylinder 74 is used to clamp the terminal on the first clamping cylinder 67.

[0057] After the clamping assembly 6 clamps the loose terminal, the first clamping cylinder 67 is positioned directly above the second clamping cylinder 74, and the Z-axis slide 66 moves downward, causing the terminal to be clamped by the second clamping cylinder 74. Then, the rotary cylinder 73 drives the second clamping cylinder 74 to rotate at a specific angle so that the terminal faces the terminal transport fixture 8. Finally, the second slide 72 is controlled to move along the linear guide rail 71 and approach the terminal transport fixture 8. When the terminal and wire harness are pressed together, the second clamping cylinder 74 can clamp the terminal to achieve positioning and prevent the terminal from falling off due to the reaction force when the terminal presser 9 is pressing.

[0058] When it is necessary to clamp the chain terminal, the rotary cylinder 73 is used to drive the second clamping cylinder 74 toward the chain positioning plate 3. Then, the first cylinder 41 is used to drive the entire first slide 42 to move horizontally and approach the second clamping cylinder 74 so that the second clamping cylinder 74 can clamp a single chain terminal. After being punched by the punching component 5, the chain terminal and the material strip 20 are separated from each other, and subsequent transfer and processing can be carried out.

[0059] In addition, a third cylinder 11 is installed below the terminal crimping machine 9. A T-slot 12 is provided on the machine base 1, and a T-block 13 is fixedly connected to the bottom of the terminal handling fixture 8, with the T-block 13 embedded in the T-slot 12. The piston rod of the third cylinder 11 is connected to the terminal handling fixture 8 and is used to drive the terminal handling fixture 8 to perform linear motion. The third cylinder 11 can control the horizontal movement of the terminal handling fixture 8, thereby changing the relative position of the terminal handling fixture 8 and the second clamping cylinder 74. The T-block 13 and the T-slot 12 cooperate with each other to achieve stable movement of the terminal handling fixture 8.

[0060] The implementation principle of a multi-station terminal feeding and pressing device according to this application embodiment is as follows: Based on production needs, the clamping component 6 clamps the terminals on the bulk positioning plate 2 and then transfers the terminals to the feeding component 7; or the feeding component 7 directly clamps the terminals on the chain positioning plate 3. Then, the feeding component 7 transfers the terminals to the terminal transport fixture 8. By controlling the horizontal movement of the terminal transport fixture 8, the feeding component 7 can accurately position the terminals in the corresponding grooves (bulk terminals correspond to bulk grooves, and chain terminals correspond to chain grooves).

[0061] Meanwhile, the wire harness is automatically or manually placed on the wire harness handling fixture 10 by a robotic arm, and then the wire harness handling fixture 10 is controlled to move to the position corresponding to the terminal handling fixture 8 so that the wire harness and the terminal correspond. Finally, the terminal crimping machine 9 is started to crimp the terminal and the wire harness.

[0062] Based on the above embodiments, this application also provides a multi-station terminal feeding and pressing method. This method uses a multi-station terminal feeding and pressing equipment with all the above structures to press loose terminals and wire harnesses, including the following steps: S1. The clamping component 6 clamps the loose terminal from the loose positioning plate 2 and transfers the terminal to the feeding component 7. After receiving the terminal, the feeding component 7 transfers it to the terminal handling fixture 8. By driving the terminal handling fixture 8 to move horizontally, the feeding component 7 can accurately place the terminal in the corresponding groove of the mold.

[0063] S2. At the same time, the wire harness is placed on the wire harness handling fixture 10 by automatic operation of the robotic arm or manual placement; the wire harness handling fixture 10 is driven to move to a preset position that matches the terminal handling fixture 8. After the above positioning action is completed, the terminal pressing machine 9 is started to complete the pressing process of the terminal and the wire harness.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-station terminal feeding and pressing device, characterized in that, The assembly includes a base (1), a bulk positioning disc (2), a chain positioning disc (3), a pushing assembly (4), a punching assembly (5), a clamping assembly (6), a feeding assembly (7), a terminal handling fixture (8), a terminal pressing machine (9), and a wire harness handling fixture (10). The bulk positioning disc (2) is located on the base (1) and has several positioning slots. The positioning slots are used to position the bulk terminals. The chain positioning disc (3) is located on one side of the bulk positioning disc (2) and is used to position the chain terminals. The pushing component (4) is connected to the chain positioning plate (3) and is used to linearly push the chain terminal. The punching component (5) is used to cut the chain terminal. The clamping component (6) is located on the machine base (1) and is used to clamp the terminal on the bulk positioning plate (2). The feeding component (7) is located between the bulk positioning plate (2) and the chain positioning plate (3) and is used to transfer the terminal clamped by the clamping component (6) to the terminal handling fixture (8) and to clamp the cut terminal on the chain positioning plate (3). The terminal handling fixture (8) is horizontally movable on the base (1). The terminal handling fixture (8) is located below the terminal pressing machine (9) and is provided with grooves for loose terminals and chain terminals to cooperate. The wire harness handling fixture (10) is movably disposed on the base (1) and located on one side of the terminal handling fixture (8). It is used to position the wire harness. The moving direction of the wire harness handling fixture (10) is parallel to that of the terminal handling fixture (8). The terminal pressing machine (9) is used to press the terminals and wire harness together.

2. The multi-station terminal feeding and pressing equipment according to claim 1, characterized in that, The feeding assembly (4) includes a first cylinder (41), a first slide (42), a pressure plate (43), a second cylinder (44), a connecting block (45), a fixing block (46), and a locking block (47). The first slide (42) is slidably connected to the machine base (1) via a slide rail. The chain positioning disc (3) is located on the first slide (42). The first cylinder (41) is connected to the first slide (42) and is used to drive the first slide (42) to move horizontally. The pressure plate (43) is located on the first slide (42) and above the chain terminal. The pressure plate (43) is used to press the chain terminal on the chain positioning disc (3). The second cylinder (44) is located on the first slide (42), and the connecting block (45) is located on the second cylinder. On the piston rod of (44), the second cylinder (44) is used to drive the connecting block (45) to move horizontally. The fixed block (46) is rotatably connected to the connecting block (45) by a torsion spring (14). The locking block (47) is provided on the fixed block (46) and is located between the pressure plate (43) and the punching assembly (5). The locking block (47) is provided with a tapered plate (15). The tip of the tapered plate (15) is pressed into the through hole on the surface of the chain terminal strip (20). The inclined surface of the tapered plate (15) is located on the side of the locking block (47) close to the pressure plate (43). When the tip of the tapered plate (15) is locked in the hole of the strip (20), the second cylinder (44) drives the locking block (47) to move in the direction close to the punching assembly (5).

3. The multi-station terminal feeding and pressing equipment according to claim 1, characterized in that, The clamping assembly (6) includes an X-axis guide rail (61), an X-axis slide (62), a Y-axis guide rail (63), a Y-axis slide (64), a Z-axis guide rail (65), a Z-axis slide (66), and a first clamping cylinder (67). The X-axis slide (62) is slidably connected to the X-axis guide rail (61) via a linear motor. The Y-axis guide rail (63) is located on the X-axis slide (62) and is perpendicular to the X-axis guide rail (61). The Y-axis slide (64) is slidably connected to the Y-axis guide rail (63). The Z-axis guide rail (65) is located on the Y-axis slide (64). The Z-axis slide (66) is raised and lowered on the Z-axis guide rail (65). The first clamping cylinder (67) is located on the Z-axis slide (66) and is used to clamp the terminal.

4. The multi-station terminal feeding and pressing equipment according to claim 3, characterized in that, The feeding assembly (7) includes a linear guide rail (71), a second slide block (72), a rotary cylinder (73), and a second clamping cylinder (74). The linear guide rail (71) is horizontally arranged and parallel to the X-axis guide rail (61). The second slide block (72) is slidably connected to the linear guide rail (71). The rotary cylinder (73) is located on the second slide block (72) and connected to the second clamping cylinder (74). The rotary cylinder (73) is used to drive the second clamping cylinder (74) to rotate. The second clamping cylinder (74) is used to clamp the terminal on the first clamping cylinder (67) and the chain terminal on the chain positioning plate (3).

5. The multi-station terminal feeding and pressing equipment according to claim 1, characterized in that, The punching assembly (5) includes a punching cylinder (51), a punch (52), and a punching blade (53). The punch (52) is connected to the piston rod of the punching cylinder (51), and the punch (52) is movable up and down. The punching blade (53) is located below the punch (52) and above the chain terminal. The punching blade (53) is movably mounted on the chain positioning plate (3). The moving direction of the punching blade (53) is the same as the moving direction of the punch (52). The punch (52) drives the punching blade (53) to punch the chain terminal.

6. The multi-station terminal feeding and pressing equipment according to claim 5, characterized in that, It also includes a limiting block (16), which is located on the chain positioning disk (3) and has a limiting groove (17). The punching blade (53) is connected to the limiting block (16) through a first compression spring, and the punching blade (53) moves along the limiting groove (17).

7. The multi-station terminal feeding and pressing equipment according to claim 5, characterized in that, It also includes a positioning block (18) and a second compression spring (19). The positioning block (18) is movably connected to the punch (52) through the second compression spring (19). One end of the positioning block (18) is provided with a positioning slot, which is used to position the chain terminal.

8. The multi-station terminal feeding and pressing equipment according to claim 1, characterized in that, It also includes a third cylinder (11), a T-slot (12) is provided on the base (1), a T-block (13) is connected to the bottom of the terminal handling fixture (8), and the T-block (13) is located in the T-slot (12); the third cylinder (11) is connected to the terminal handling fixture (8) and is used to drive the terminal handling fixture (8) to move linearly.

9. A multi-station terminal feeding and pressing device according to claim 1, characterized in that, The wire harness handling fixture (10) is equipped with grippers, which are used to hold the wire harness.

10. A method for producing wire harnesses using a multi-station terminal feeding and pressing equipment as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. According to production needs, the clamping component (6) clamps the loose terminal on the loose positioning plate (2) and then transfers the terminal to the feeding component (7); the feeding component (7) transfers the terminal to the terminal handling fixture (8), and by controlling the horizontal movement of the terminal handling fixture (8), the feeding component (7) can accurately position the terminal in the corresponding groove. S2. At the same time, the wire harness is placed on the wire harness handling fixture (10) by a robot or by manual operation. The wire harness handling fixture (10) is moved to the position corresponding to the terminal handling fixture (8). Finally, the terminal pressing machine (9) is started to press the terminal and the wire harness together.

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