A semi-automatic bending equipment for ring terminals

Abstract

The application relates to the technical field of bending equipment, and discloses a semi-automatic bending equipment for annular terminals, which comprises a base, a workpiece positioning clamp and a bending execution mechanism arranged on the base; the workpiece positioning clamp comprises a positioning plate, one side of the positioning plate is bent to form a positioning block, and a clamping groove is formed in the positioning block; the bending execution mechanism comprises a rotatable bending main shaft and a bending plate arranged on the bending main shaft, an included angle is formed between the bending plate and the positioning block for the terminal in the clamping groove to extend to, and the bending main shaft drives the bending plate to bend the terminal by rotating. An operator inserts the annular terminal on the automobile wiring harness into the clamping groove and makes the annular terminal extend into the included angle, the bending main shaft is rotated by a preset angle to drive the bending plate to rotate, the part of the annular terminal extending into the included angle is bent, compared with the existing bending mode, the feeding and discharging actions of the wiring harness are reserved for manual operation, and the bending action is accurately completed by the equipment, so that an efficient, reliable and low-cost operation cycle is formed.

Description

Technical Field

[0001] This application relates to the field of bending equipment technology, and more specifically, to a semi-automatic bending equipment for ring terminals. Background Technology

[0002] Currently, in the field of automotive wiring harnesses, due to the compact internal structure of automobiles, the electrical components are scattered and space is limited. In order to meet the electrical connection between electrical components, the terminals crimped on the wiring harness are bent to ensure that the terminals are precisely connected to the interfaces of electrical components and to avoid spatial conflicts with other components.

[0003] Currently, common bending methods mainly include manual bending and fully automatic bending machines. Manual bending involves operators using simple fixtures and hand tools. This method is inefficient, labor-intensive, and entirely dependent on the operator's experience and skill, resulting in poor terminal bending consistency, low yield, and susceptibility to terminal damage due to uneven force. Fully automatic bending machines use multi-station, servo-controlled automated equipment. While highly efficient and consistent, they are expensive, complex in structure, and difficult to debug and maintain. They are typically only suitable for mass production of a single product, lacking versatility and thus requiring improvement. Utility Model Content

[0004] The purpose of this application is to provide a semi-automatic bending device for ring terminals to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: A semi-automatic bending device for ring terminals includes a base, on which a workpiece positioning fixture for fixing terminals and a bending actuator for bending terminals are provided. The workpiece positioning fixture includes a positioning plate, one side of which is bent to form a positioning block, and a slot for placing terminals is provided on the positioning block; The bending actuator includes a rotatable bending spindle and a bending plate mounted on the bending spindle. The bending plate and the positioning block form an angle that allows the terminal in the slot to extend. The bending spindle rotates to drive the bending plate to bend the terminal.

[0006] Furthermore, the bending actuator also includes a drive unit for driving the bending spindle to rotate.

[0007] Furthermore, the drive unit includes a rotary cylinder.

[0008] Furthermore, the angle between the bending plate and the positioning block can be adjusted.

[0009] Furthermore, mounting holes are arranged circumferentially on the rotating platform of the rotary cylinder, and the bending spindle is fixed radially between the corresponding mounting holes along the rotating platform to change the included angle between the bending plate and the positioning block.

[0010] Furthermore, the workpiece positioning fixture also includes a support plate mounted on the base, and the positioning plate is installed on the upper surface of the support plate by screws.

[0011] Furthermore, the positioning plate has corresponding strip grooves along its extension direction, and screws are threaded through the corresponding strip grooves and connected to the upper end face of the support plate.

[0012] Furthermore, the drive unit also includes a trigger switch, which triggers once to rotate the rotary platform of the rotary cylinder by a set angle and then resets.

[0013] Furthermore, the trigger switch is a foot switch or a start button.

[0014] Compared with the prior art, the beneficial effects of this application are: 1. In this application, the operator inserts the ring terminal on the automotive wiring harness into the slot and extends it into the included angle. By rotating the bending spindle at a preset angle, the bending plate is rotated to bend the part of the ring terminal that extends into the included angle. Compared with the existing bending method, this application retains the loading and unloading of the wiring harness to the operator and makes the bending action precisely completed by the equipment, thus forming an efficient, reliable and low-cost operation cycle.

[0015] 2. In this application, the bending angle of the annular terminal is adjusted by adjusting the included angle between the bending spindle and the positioning block and mounting them in the corresponding mounting holes with screws, and by adjusting the rotation angle of the rotating platform, thereby improving the applicability of the semi-automatic bending equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a semi-automatic bending device for ring terminals according to this application.

[0017] Figure 2 This is one of the structural schematic diagrams of the workpiece positioning fixture and bending actuator on the base in this application.

[0018] Figure 3 This is the second schematic diagram of the workpiece positioning fixture and bending actuator on the base in this application.

[0019] Figure 4 This is a partial structural diagram of the driving unit in this application.

[0020] The meanings of the labels in the diagram are as follows: 10. Wire; 20. Ring terminal; 100. Base; 110. Bending actuator; 120. Workpiece positioning fixture; 130. Trigger switch; 131. Solenoid directional valve; 132. Air pipe; 200. Support plate; 210. Positioning plate; 211. Positioning block; 212. Slot; 213. Strip groove; 220. Rotary cylinder; 221. Rotary platform; 222. Mounting hole; 310. Bending spindle; 311. Bending plate. Detailed Implementation

[0021] To further understand the content of this application, a detailed description of this application will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative and not intended to limit the scope of this application.

[0022] The following is in conjunction with the appendix Figures 1-4 This embodiment will be described in further detail.

[0023] like Figure 1-3 As shown, this embodiment of a semi-automatic bending device for ring terminals is used to bend ring terminals 20 crimped onto automotive wiring harnesses. It includes a base 100, on which a workpiece positioning fixture 120 for fixing the terminal and a bending actuator 110 for bending the terminal are provided. The workpiece positioning fixture 120 includes a positioning plate 210, one side of which is bent to form a positioning block 211, and a slot 212 for placing a terminal is provided on the positioning block 211. The bending actuator 110 includes a rotatable bending spindle 310 and a bending plate 311 fixed on the bending spindle 310. The bending plate 311 and the positioning block 211 form an angle that allows the terminal in the slot 212 to extend. The bending spindle 310 rotates to drive the bending plate 311 to bend the terminal.

[0024] In practical use, the annular terminal 20 (e.g., a copper lug) is crimped onto the end of the wire 10 to form an automotive wiring harness.

[0025] Specifically, the bending spindle 310 is located below the positioning plate 210 and rotates around its center position. The bending plate 311 is located on the bending spindle 310 on one side of the rotation axis of the bending spindle 310 and extends upward to the front side of the positioning block 211. Therefore, when the bending spindle 310 is set perpendicular to the positioning block 211 (this is the initial state), a 90° angle is formed between the bending plate 311 and the positioning block 211. At this time, the annular terminal 20 in the slot 212 extends into the angle, causing the bending spindle 310 to rotate clockwise and drive the bending plate 311 to squeeze the annular terminal 20 to perform its bending process.

[0026] Specifically, in order to install the positioning plate 210, the workpiece positioning fixture 120 also includes a support plate 200 that is vertically fixed on the base 100, and the positioning plate 210 is installed on the upper surface of the support plate 200 by screws.

[0027] In this embodiment, through the above-described structure, during actual operation, the operator attaches the automotive wiring harness to the positioning plate 210 and vertically inserts the annular terminal 20 into the slot 212, so that part of the annular terminal 20 extends into the included angle, and keeps the vertical annular terminal 20 in contact with the slot 212 away from the side wall of the bending plate 311. At this time, the bending spindle 310 rotates at a preset angle (e.g., 90°) to drive the bending plate 311 to rotate, and bends the part of the annular terminal 20 that extends into the included angle. Compared with the existing bending method, this embodiment retains the loading and unloading of the wiring harness to the operator and makes the bending action precisely completed by the equipment, thereby forming an efficient, reliable and low-cost operation cycle.

[0028] In practical use, to position the wire harness during loading and unloading and ensure the consistency of subsequent bending of the annular terminal 20, the width of the slot 212 is smaller than the width of the connection between the annular terminal 20 and the wire 10. This ensures that when the operator inserts the annular terminal 20 into the slot 212, the portion of the annular terminal 20 that presses against the wire 10 abuts against the side of the positioning block 211 away from the bending plate 311. Furthermore, when the annular terminal 20 is inserted into the slot 212, the length of the portion extending into the included angle is consistent. This allows the operator to position the annular terminal 20 inserted into the slot 212 when inserting the wire harness, ensuring the consistency of subsequent bending of the annular terminal 20.

[0029] In this embodiment, in order to realize the rotation of the bending spindle 310, the bending actuator 110 further includes a drive unit, which is used to drive the bending spindle 310 to rotate.

[0030] In this embodiment, the drive unit includes a rotary cylinder 220, which in actual use adopts the MSQB-10A model rotary cylinder 220.

[0031] In this embodiment, the included angle between the bending plate 311 and the positioning block 211 can be adjusted to allow the terminals to be bent at different angles, thereby improving the applicability of the semi-automatic bending equipment.

[0032] In this embodiment, mounting holes 222 are arranged circumferentially on the rotating platform 221 of the rotary cylinder 220, and the bending spindle 310 is fixed radially between the corresponding mounting holes 222 along the rotating platform 221 to change the included angle between the bending plate 311 and the positioning block 211.

[0033] Combination Figure 2As shown, in actual use, the positioning plate 210 is installed above the rotating platform 221 of the rotary cylinder 220 via the support plate 200. The rotation angle of the rotating platform 221 is preset to 90°. In the initial state, the bending spindle 310 is fixedly installed in the corresponding mounting hole 222 by screws so that the bending spindle 310 is perpendicular to the positioning block 211. At this time, the rotary cylinder 220 drives the rotating platform 221 to rotate 90° clockwise, so that the bending spindle 310 drives the bending plate 311 to rotate clockwise, so as to push the annular terminal 20 to bend with the side wall of the slot 212 near the bending plate 311 as the bending point, so that the annular terminal 20 is bent by 90°. After the bending process is completed, the rotating platform 221 of the rotary cylinder 220 is reset. At this time, the wire harness can be taken out and the wire harness can be bent again.

[0034] It should be noted that in this embodiment, there are 8 mounting holes 222, which are evenly distributed around the circumference of the rotating platform 221. When it is necessary to quickly bend the annular terminal 20 by 45°, the angle between the bending spindle 310 and the positioning block 211 is adjusted, and the spindle is installed in the corresponding mounting hole 222 by screws. At this time, the annular terminal 20 is inserted into the slot 212 and extends into the angle. A 45° angle is formed between the bending plate 311 and the extended part of the annular terminal 20. When the rotating platform 221 rotates 90° clockwise, the bending plate 311 can be rotated clockwise to complete the bending of the annular terminal 20 by 45°.

[0035] Furthermore, during use, the bending angle of the annular terminal 20 can be adjusted by adjusting the rotation angle of the rotating platform 221.

[0036] In this embodiment, in order to facilitate the operator to drive the rotating platform 221 to rotate and swing, the drive unit also includes a trigger switch 130. The trigger switch 130 triggers once to realize the rotation angle set by the rotating platform 221 of the rotating cylinder 220, and then resets.

[0037] Among them, the trigger switch 130 is a foot switch or a start button.

[0038] Combination Figure 4 As shown, in this embodiment, the drive unit also includes an air source (not shown) for supplying air to the rotary cylinder 220. The air source is connected to the rotary cylinder 220 through an electromagnetic reversing valve 131, that is, the air source is connected to the air inlet of the electromagnetic reversing valve 131. The two air outlets of the electromagnetic reversing valve 131 are connected to the working air inlet of the rotary cylinder 220 through an air pipe 132. The electromagnetic reversing valve 131 is electrically connected to the trigger switch 130. Therefore, the trigger signal of the trigger switch 130 controls the electromagnetic reversing valve 131 to switch, thereby driving the rotary platform 221 of the rotary cylinder 220 to rotate in both directions.

[0039] In actual operation, when the foot switch is pressed or the start button is pressed, the rotary cylinder 220 rotates clockwise to perform the bending operation of the annular terminal 20. When the foot switch or start button is released, the rotary cylinder 220 rotates counterclockwise to reset, so that the annular terminal 20 can be bent again.

[0040] In practical use, the ring terminals 20 come in various types (e.g., different lengths). To enable the positioning plate 210 and positioning block 211 to adapt to different types of terminals, the positioning plate 210 has corresponding strip grooves 213 along its extension direction. Screws pass through the corresponding strip grooves 213 and are threaded onto the upper surface of the support plate 200. In practical use, loosening the screws allows the positioning plate 210 to slide along the screws through the strip grooves 213, thereby adjusting the position of the positioning plate 210 relative to the support plate 200. This also adjusts the distance between the positioning block 211 and the bending plate 311, allowing the bending plate 311 to better fit the protruding part of the ring terminal 20 for bending, thus improving the applicability of the semi-automatic bending equipment.

[0041] In summary, the above description is only a preferred embodiment of this application. All equivalent changes and modifications made within the scope of this application should be covered by this application.

Claims

1. A semi-automatic bending device for ring terminals, comprising a base (100), characterized in that: The base (100) is provided with a workpiece positioning fixture (120) for fixing the terminal and a bending actuator (110) for bending the terminal. The workpiece positioning fixture (120) includes a positioning plate (210), one side of which is bent to form a positioning block (211), and a slot (212) for placing a terminal is provided on the positioning block (211). The bending actuator (110) includes a rotatable bending spindle (310) and a bending plate (311) disposed on the bending spindle (310). The bending plate (311) and the positioning block (211) form an angle that allows the terminal in the slot (212) to extend. The bending spindle (310) rotates to drive the bending plate (311) to bend the terminal.

2. The semi-automatic bending device for ring terminals according to claim 1, characterized in that: The bending actuator (110) also includes a drive unit for driving the bending spindle (310) to rotate.

3. The semi-automatic bending device for ring terminals according to claim 2, characterized in that: The drive unit includes a rotary cylinder (220).

4. The semi-automatic bending device for ring terminals according to claim 3, characterized in that: The angle between the bending plate (311) and the positioning block (211) can be adjusted.

5. A semi-automatic bending device for ring terminals according to claim 4, characterized in that: The rotating platform (221) of the rotary cylinder (220) is provided with mounting holes (222) along its circumference. The bending spindle (310) is fixed radially between the corresponding mounting holes (222) along the rotating platform (221) to change the included angle between the bending plate (311) and the positioning block (211).

6. The semi-automatic bending device for ring terminals according to claim 1, characterized in that: The workpiece positioning fixture (120) also includes a support plate (200) disposed on the base (100), and the positioning plate (210) is installed on the upper surface of the support plate (200) by screws.

7. A semi-automatic bending device for ring terminals according to claim 6, characterized in that: The positioning plate (210) has corresponding slots (213) along its extension direction, and screws are threaded through the corresponding slots (213) and connected to the upper surface of the support plate (200).

8. A semi-automatic bending device for ring terminals according to claim 3, characterized in that: The drive unit also includes a trigger switch (130), which triggers the rotating platform (221) of the rotary cylinder (220) to rotate by a set angle once, and then resets it.

9. A semi-automatic bending device for ring terminals according to claim 8, characterized in that: The trigger switch (130) is a foot switch or a start button.

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