Automatic pressing device for outgoing line terminal

Abstract

The utility model belongs to the technical field of terminal pressing, and provides an automatic pressing device for an outgoing line terminal, which comprises a wire harness conveying belt, a terminal conveying belt, a pressing machine, a wire harness clamping device, a terminal clamping device and a terminal pushing device, a mounting frame is arranged on the rear side of the pressing machine, and the rear side of the pressing machine is clamped to the mounting frame in a sliding mode. A pressing head is mounted at the bottom of the pressing machine, and a driving system is arranged in the pressing machine to control the pressing head to move up and down; the wire harness clamping devices are used for clamping wire harnesses, the multiple wire harness clamping devices are installed on the wire harness conveying belt, and the wire harness conveying belt drives the wire harness clamping devices to sequentially pass through the pressing machine; according to the scheme, automatic pressing is achieved through cooperation of the module assemblies, and the purposes of improving the production efficiency and reducing the complexity of manual operation are achieved; the terminal can be automatically and accurately pushed to the pressing die plate, the pushing action is stable and accurate, and smooth proceeding of the subsequent pressing process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of terminal crimping technology, specifically to an automatic crimping device for lead wire terminals. Background Technology

[0002] Motor leads (composed of multiple copper wires) are typically fixedly connected to terminals by crimping. Since the motor leads consist of multiple copper wires, the ends of these wires need to be manually twisted and gathered before insertion into the terminals to facilitate insertion. However, manually organizing the leads is inefficient and the gathering effect is poor, thus affecting the crimping connection between the leads and terminals. Furthermore, the more manual steps involved, the greater the probability of accidents. Therefore, we propose an automatic crimping device for motor leads and terminals. Utility Model Content

[0003] The purpose of this invention is to provide an automatic crimping device for lead wire terminals to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic crimping device for lead wire terminals, comprising a wire harness conveyor belt, a terminal conveyor belt, a crimping machine, a wire harness clamping device, a terminal clamping device, and a terminal pushing device;

[0005] The presser is provided with a mounting bracket at the rear, and the rear of the presser is slidably engaged with the mounting bracket; a pressing head is installed at the bottom of the presser, and the presser has a built-in drive system to control the pressing head to move up and down; the wire harness clamping device is used to clamp the wire harness, and multiple wire harness clamping devices are installed on the wire harness conveyor belt, and the wire harness conveyor belt drives the wire harness clamping devices to pass through the presser in sequence;

[0006] The wire harness clamping device has a clamping groove in the middle, and a wire harness clamping block is provided in the clamping groove. The wire harness is clamped inward by two wire harness clamping blocks. The wire harness clamping block is movably inserted into the wire harness clamping device, and a clamping spring is provided on the outside of the wire harness clamping block.

[0007] A terminal is placed in the middle of the terminal clamping device, and fasteners are provided on both sides of the terminal clamping device. The fasteners clamp the terminals inward to make the terminals more secure. Multiple terminal clamping devices are installed on the terminal conveyor belt, and the terminal conveyor belt drives the terminal clamping devices to pass through the pressing machine in sequence.

[0008] The terminal pushing device consists of a pushing rod, an arc-shaped ring, and a drive motor. The arc-shaped ring is welded to the rear end of the pushing rod, and a drive rod is eccentrically arranged on the top of the drive motor. The drive rod is inserted into the arc-shaped ring.

[0009] When the drive motor rotates, the drive rod agitates the arc-shaped ring, and the arc-shaped ring and the push rod are driven to move back and forth. When the push rod moves forward, it abuts against the terminal and pushes the terminal to the bottom of the press. Then, when the drive rod rotates back, the push rod is pulled back, completing one pushing action.

[0010] Preferably, a pressing mold plate is provided directly below the pressing head, and an upwardly extending fixing frame is provided on the rear side of the pressing mold plate, and the fixing frame is welded upward to the bottom of the pressing machine.

[0011] Preferably, when a wire harness is placed in the clamping slot, the clamping spring pushes the wire harness clamping block inward to clamp it, and the clamping range of the wire harness clamping block can be adjusted by the extension and retraction of the clamping spring.

[0012] Preferably, the fasteners are symmetrically clamped on both sides of the terminal to secure the terminal. A fastening head is movably provided on the inner side of the fastener, and a fastening spring is provided on the outer side of the fastening head, so that the fastening head can retract inward by means of the fastening spring.

[0013] Preferably, the inner side of the fastening head is provided with an arc-shaped groove. The side of the arc-shaped groove closer to the pressing machine is a short surface, and the side of the arc-shaped groove closer to the terminal push rod is a long surface. When the push rod pushes the terminal forward, the friction of the short surface of the arc-shaped groove is less, making the movement of the terminal smoother.

[0014] Preferably, the front end of the push rod is provided with an arc-shaped head, which is used to abut forward against the arc-shaped surface of the terminal, making the push more stable. Push rod clamping plates are symmetrically arranged on both sides of the push rod, and the front ends of the two push rod clamping plates are provided with arc-shaped grooves for receiving the arc-shaped head. When the arc-shaped head of the push rod retracts backward, it is limited by the arc-shaped grooves.

[0015] Preferably, a pressing mold plate is provided directly below the bottom of the pressing machine. The wire harness clamping device is located in front of the pressing mold plate, the terminal clamping device is located behind the pressing mold plate, and the terminal pushing device is located behind the terminal clamping device. The terminal is pushed forward by the pushing rod in the terminal pushing device, pushing the terminal onto the pressing mold plate. At this time, the wire harness clamping device holds the wire harness, which is located directly in front of the terminal. A robot arm is installed on one side of the bottom of the pressing machine. The robot arm pulls the wire harness and inserts it into the terminal. Then, the pressing head presses the terminal down to complete the pressing work.

[0016] Preferably, the distance that the wire harness clamping device and the terminal clamping device move each time is fixed relative to the pressing machine, and the distance between the terminal clamping device and the terminal pushing device is also fixed. Therefore, the wire harness conveyor belt and the terminal conveyor belt move at a fixed distance, keeping each wire harness clamping device and the terminal clamping device passing under the pressing machine in sequence, and the robot arm grabs the wire harness according to a fixed line to complete the insertion and installation action.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This solution achieves automated pressing through the cooperation of modular components, aiming to improve production efficiency and reduce the complexity of manual operation;

[0019] The wire harness conveyor belt and terminal conveyor belt can move at fixed distances, automatically transporting wire harnesses and terminals sequentially to the working position below the pressing machine, eliminating the need for manual placement and greatly improving production efficiency while reducing the tediousness and uncertainty of manual operation.

[0020] The terminal pushing device, through the cooperation of a drive motor, drive rod, arc ring, and push rod, can automatically and accurately push the terminals onto the pressing mold plate. The pushing action is stable and precise, ensuring the smooth progress of subsequent pressing processes. The entire process is smooth and orderly, reducing manual intervention and improving production efficiency and product quality stability.

[0021] The wire harness clamping device features a movable wire harness clamping block within its clamping slot, and the clamping range is adjusted via a clamping spring. This design accommodates wire harnesses of different diameters, ensuring stable clamping during transport and pressing without loosening or displacement.

[0022] The terminal clamping device securely holds the terminals using fasteners and a clamping head with a clamping spring. Simultaneously, the special design of the arc-shaped groove on the inner side of the clamping head reduces friction on the short surface near the pressing machine during terminal pushing, ensuring smooth terminal pushing and improving pushing accuracy. The arc-shaped head design at the front end of the push rod also better conforms to the arc-shaped surface of the terminal, making pushing more stable and accurate. Attached Figure Description

[0023] Figure 1 This is the front view of the present utility model;

[0024] Figure 2 This is a schematic diagram of the wire harness conveyor belt and terminal pushing device of this utility model;

[0025] Figure 3 This is a top view of the wire harness conveyor belt and terminal pushing device of this utility model;

[0026] Figure 4 This is a schematic diagram of the wire harness clamping device of this utility model;

[0027] Figure 5 This is a schematic diagram of the terminal clamping device of this utility model.

[0028] In the diagram: 10 mounting bracket, 101 pressing machine, 102 pressing head;

[0029] 20. Wire harness conveyor belt; 201. Wire harness clamping device; 202. Clamping groove; 203. Wire harness clamping block; 204. Clamping spring.

[0030] 30 terminal conveyor belt, 301 terminal clamping device, 302 terminal, 303 fastener, 304 fastening spring, 305 fastening head;

[0031] 40 Terminal pushing device, 401 Push rod clamping plate, 402 Push rod, 403 Arc ring, 404 Drive motor, 405 Drive rod;

[0032] 50 robotic arms. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Example:

[0036] Please see Figure 1-5 The present invention provides the following technical solution:

[0037] An automatic crimping device for lead wire terminals includes a wire harness conveyor belt 20, a terminal conveyor belt 30, a crimping machine 101, a wire harness clamping device 201, a terminal clamping device 301, and a terminal pushing device 40.

[0038] A mounting bracket 10 is provided on the rear side of the press machine 101, and the rear side of the press machine 101 is slidably engaged with the mounting bracket 10; a pressing head 102 is installed at the bottom of the press machine 101, and the press machine 101 has a built-in drive system to control the pressing head 102 to move up and down.

[0039] A pressing mold plate is provided directly below the pressing head 102, and an upwardly extending fixing frame is provided on the rear side of the pressing mold plate. The fixing frame is welded upward to the bottom of the pressing machine 101. The wire harness clamping device 201 is used to clamp the wire harness. Multiple wire harness clamping devices 201 are installed on the wire harness conveyor belt 20. The wire harness conveyor belt 20 drives the wire harness clamping devices 201 to pass through the pressing machine 101 in sequence.

[0040] The wire harness clamping device 201 has a clamping groove 202 in the middle, and a wire harness clamping block 203 is provided in the clamping groove 202. The wire harness is clamped inward by the two wire harness clamping blocks 203. A layer of rubber or polyurethane buffer pad is added to the inner wall of the clamping groove 202, which can increase the friction of the wire harness, prevent the wire harness from sliding during the clamping process, and protect the outer sheath of the wire harness from damage.

[0041] The wire harness clamping block 203 is movably inserted into the wire harness clamping device 201, and a clamping spring 204 is provided on the outside of the wire harness clamping block 203. When the wire harness is placed in the clamping groove 202, the clamping spring 204 pushes the wire harness clamping block 203 to clamp inward. The clamping range of the wire harness clamping block 203 can be adjusted by the extension and retraction of the clamping spring 204.

[0042] A terminal 302 is placed in the middle of the terminal clamping device 301, and fasteners 303 are provided on both sides of the terminal clamping device 301. The fasteners 303 clamp the terminals 302 inward to make the terminals more secure. Multiple terminal clamping devices 301 are installed on the terminal conveyor belt 30, and the terminal clamping devices 301 are driven by the terminal conveyor belt 30 to pass through the pressing machine 101 in sequence.

[0043] The terminal pushing device 40 consists of a pushing rod 402, an arc ring 403 and a drive motor 404. The arc ring 403 is welded to the rear end of the pushing rod 402. The top of the drive motor 404 is eccentrically provided with a drive rod 405, which is inserted into the arc ring 403.

[0044] When the drive motor 404 rotates, the drive rod 405 agitates the arc ring 403, and the arc ring 403 and the push rod 402 are driven by the drive rod 405 to move back and forth. When the push rod 402 moves forward, it abuts against the terminal 302 and pushes the terminal 302 to the bottom of the press 101. Then, when the drive rod 405 rotates back, the push rod 402 is pulled back, completing one pushing action.

[0045] The front end of the push rod 402 is provided with an arc-shaped head, which is used to abut against the arc-shaped surface of the terminal 302 for more stable pushing. Push rod clamping plates 401 are symmetrically arranged on both sides of the push rod 402. The front end of the two push rod clamping plates 401 is provided with an arc-shaped groove for receiving the arc-shaped head. When the arc-shaped head of the push rod 402 retracts backward, it is limited by the arc-shaped groove.

[0046] Fasteners 303 are symmetrically clamped on both sides of terminal 302 to fasten terminal 302. Fastening head 305 is movably provided on the inner side of fastener 303, and fastening spring 304 is provided on the outer side of fastening head 305. Fastening head 305 can be retracted inward by fastening spring 304.

[0047] An arc-shaped groove is provided on the inner side of the fastening head 305. The side of the arc-shaped groove near the press machine 101 is a short surface, and the side of the arc-shaped groove near the terminal push rod 402 is a long surface. When the push rod 402 pushes the terminal 302 forward, the friction of the short surface of the arc-shaped groove is less, making the movement of the terminal 302 smoother.

[0048] A pressing mold plate is provided directly below the bottom of the pressing machine 101. The wire harness clamping device 201 is located in front of the pressing mold plate, the terminal clamping device 301 is located behind the pressing mold plate, and the terminal pushing device 40 is located behind the terminal clamping device 301. The terminal 302 in the terminal clamping device 301 is pushed forward by the pushing rod 402 in the terminal pushing device 40, and the terminal 302 is pushed onto the pressing mold plate. At this time, the wire harness clamping device 201 holds the wire harness, and the wire harness is located directly in front of the terminal 302. A robot arm 50 is installed on one side of the bottom of the pressing machine 101. The robot arm 50 pulls the wire harness and inserts it into the terminal 302. Then the pressing head 102 presses the terminal 302 down to complete the pressing work.

[0049] The distance that the wire harness clamping device 201 and the terminal clamping device 301 move each time is fixed relative to the pressing machine 101. The distance between the terminal clamping device 301 and the terminal pushing device 40 is also fixed. Therefore, the wire harness conveyor belt 20 and the terminal conveyor belt 30 move at a fixed distance, keeping each wire harness clamping device 201 and the terminal clamping device 301 passing under the pressing machine 101 in sequence. The robot arm 50 grabs the wire harness according to a fixed line to complete the insertion and installation action.

[0050] The arc-shaped head of the push rod 402 is designed as a hollow structure, and a pressure sensor is installed inside. When the pressure sensor moves forward, it abuts against the terminal 302. When the push rod 402 pushes the terminal 302 forward, the pressure sensor can monitor the pressure changes in real time during the pushing process and feed the pressure data back to the control system. The control system determines whether the terminal 302 has been pushed into place normally based on the pressure data. If excessive resistance or abnormal pushing occurs, the control system can adjust the speed and torque of the drive motor 404 in a timely manner or issue an alarm signal to avoid equipment damage or pressing quality problems caused by pushing failure.

[0051] Working principle: This solution also includes a control box with a built-in control system. The wire harness is held by the wire harness clamping device 201, which is installed on the wire harness conveyor belt 20. The wire harness conveyor belt 20 moves at a fixed distance, allowing the wire harness to pass through the press 101 in sequence. The wire harness clamping device 201 automatically adapts to wire harnesses of different diameters and stably clamps them by relying on the wire harness clamping block 203 and clamping spring 204 in the clamping groove 202.

[0052] Terminal 302 is placed in terminal clamping device 301, which is mounted on terminal conveyor belt 30 and moves at a fixed distance. Terminal clamping device 301 securely clamps the terminal through fasteners 303 on both sides, fastening head 305 on its inner side, and fastening spring 304. The arc-shaped groove design of fastening head 305 can reduce friction when pushing.

[0053] After the wire harness and terminals are delivered to the corresponding positions, the terminal pushing device 40 located behind the terminal clamping device 301 starts to work; the drive motor 404 rotates, and the drive rod 405 eccentrically set at its top agitates the arc-shaped ring 403 welded to the rear end of the push rod 402, causing the push rod 402 to move back and forth; when the push rod 402 moves forward, the arc-shaped head at its front end abuts against the arc-shaped surface of the terminal 302, pushing the terminal 302 to the pressing mold plate at the bottom of the pressing machine 101, at which time the wire harness is located directly in front of the terminal 302;

[0054] After the terminal is pushed into place, the robotic arm 50 on one side of the bottom of the crimping machine 101 moves to pull the wire harness and insert it into the terminal 302; then the drive system built into the crimping machine 101 controls the crimping head 102 to move downward to crimp the terminal 302, completing the crimping connection between the lead wire and the terminal; throughout the process, the movement and operation of each component are coordinated and controlled by the control system according to the preset program and parameters, and various sensors are used for detection and feedback to ensure the accuracy and stability of each link, realizing the automatic crimping of the motor lead wire terminal.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic crimping device for lead wire terminals, comprising a wire harness conveyor belt (20), a terminal conveyor belt (30), a crimping machine (101), a wire harness clamping device (201), a terminal clamping device (301), and a terminal pushing device (40), characterized in that: The presser (101) is provided with a mounting bracket (10) on its rear side, and the rear side of the presser (101) is slidably attached to the mounting bracket (10); a pressing head (102) is installed at the bottom of the presser (101), and the presser (101) has a built-in drive system to control the pressing head (102) to move up and down; the wire harness clamping device (201) is used to clamp the wire harness, and multiple wire harness clamping devices (201) are installed on the wire harness conveyor belt (20), and the wire harness clamping devices (201) are driven by the wire harness conveyor belt (20) to pass through the presser (101) in sequence. The wire harness clamping device (201) has a clamping groove (202) in the middle, and a wire harness clamping block (203) is provided in the clamping groove (202). The wire harness is clamped inward by the two wire harness clamping blocks (203). The wire harness clamping block (203) is movably inserted into the wire harness clamping device (201), and a clamping spring (204) is provided on the outside of the wire harness clamping block (203). A terminal (302) is placed in the middle of the terminal clamping device (301), and fasteners (303) are provided on both sides of the terminal clamping device (301). The fasteners (303) clamp the terminals (302) inward to make the terminals more secure. Multiple terminal clamping devices (301) are installed on the terminal conveyor belt (30), and the terminal clamping devices (301) are driven by the terminal conveyor belt (30) to pass through the press (101) in sequence. The terminal pushing device (40) consists of a pushing rod (402), an arc ring (403) and a drive motor (404). The arc ring (403) is welded to the rear end of the pushing rod (402). A drive rod (405) is eccentrically provided on the top of the drive motor (404). The drive rod (405) is inserted into the arc ring (403). When the drive motor (404) rotates, the drive rod (405) agitates the arc ring (403), and the arc ring (403) and the push rod (402) are driven to move back and forth by the drive rod (405). When the push rod (402) moves forward, it abuts against the terminal (302) and pushes the terminal (302) to the bottom of the press (101). Then, when the drive rod (405) rotates back, the push rod (402) is pulled back, completing one pushing action.

2. The automatic crimping device for lead wire terminals according to claim 1, characterized in that: A pressing mold plate is provided directly below the pressing head (102), and an upwardly extending fixing frame is provided on the rear side of the pressing mold plate, and the fixing frame is welded upward to the bottom of the pressing machine (101).

3. The automatic crimping device for lead wire terminals according to claim 1, characterized in that: When the wire harness is placed in the clamping groove (202), the clamping spring (204) pushes the wire harness clamping block (203) to clamp inward. The clamping range of the wire harness clamping block (203) can be adjusted by the extension and retraction of the clamping spring (204).

4. The automatic crimping device for lead wire terminals according to claim 1, characterized in that: The fasteners (303) are symmetrically clamped on both sides of the terminal (302) to fasten the terminal (302). A fastening head (305) is movably provided on the inner side of the fasteners (303), and a fastening spring (304) is provided on the outer side of the fastening head (305). The fastening head (305) can be retracted inward by the fastening spring (304).

5. The automatic crimping device for lead wire terminals according to claim 1, characterized in that: The inner side of the fastening head (305) is provided with an arc-shaped groove. The side of the arc-shaped groove near the press (101) is a short surface, and the side of the arc-shaped groove near the terminal push rod (402) is a long surface. When the push rod (402) pushes the terminal (302) forward, the friction of the short surface of the arc-shaped groove is less, making the movement of the terminal (302) smoother.

6. The automatic crimping device for lead wire terminals according to claim 1, characterized in that: The front end of the push rod (402) is provided with an arc-shaped head, which is used to abut against the arc-shaped surface of the terminal (302) for more stable pushing. Push rod clamping plates (401) are symmetrically arranged on both sides of the push rod (402). The front ends of the two push rod clamping plates (401) are provided with arc-shaped grooves for receiving the arc-shaped head. When the arc-shaped head of the push rod (402) retracts backward, it is limited by the arc-shaped groove.

7. The pressing method of the automatic pressing device for lead wire terminals according to claim 1, characterized in that: A pressing mold plate is provided directly below the bottom of the pressing machine (101). The wire harness clamping device (201) is located in front of the pressing mold plate, the terminal clamping device (301) is located behind the pressing mold plate, and the terminal pushing device (40) is located behind the terminal clamping device (301). The terminal (302) in the terminal clamping device (301) is pushed forward by the pushing rod (402) in the terminal pushing device (40), and the terminal (302) is pushed onto the pressing mold plate. At this time, the wire harness clamping device (201) holds the wire harness, and the wire harness is located directly in front of the terminal (302). A robot (50) is installed on one side of the bottom of the pressing machine (101). The robot (50) pulls the wire harness and inserts it into the terminal (302). Then the pressing head (102) presses the terminal (302) down to complete the pressing work.

8. The pressing method of the automatic pressing device for lead wire terminals according to claim 7, characterized in that: The distance that the wire harness clamping device (201) and the terminal clamping device (301) move each time is fixed relative to the pressing machine (101). The distance between the terminal clamping device (301) and the terminal pushing device (40) is also fixed. Therefore, the wire harness conveyor belt (20) and the terminal conveyor belt (30) move at a fixed distance, keeping each wire harness clamping device (201) and the terminal clamping device (301) passing under the pressing machine (101) in sequence. The robot arm (50) grabs the wire harness according to a fixed line to complete the insertion and installation action.

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