High-frequency automatic annealing equipment for terminal production

Abstract

The utility model discloses high-frequency automatic annealing equipment for terminal production. The high-frequency automatic annealing equipment comprises a rack base, the feeding device is mounted on the rack base; the conveying mechanism is connected with the feeding device; the clamping mechanism is connected with the conveying mechanism; the driving device is connected with the clamping mechanism; the heating device is arranged on a motion path of the clamping mechanism; the collecting device is arranged in a discharging area of the clamping mechanism; and the control system is electrically connected with the feeding device, the conveying mechanism, the driving device and the heating device. According to the utility model, the feeding device is used for automatically conveying the terminals, the conveying mechanism is used for receiving and conveying the terminals, the clamping mechanism is used for fixing the terminals, and the control system is used for accurately controlling the working parameters of all parts, so that a complete automatic annealing treatment system is formed, and unmanned feeding and accurate annealing of the terminals are realized; the problem that the production efficiency of annealing treatment of the CMV female hole terminal is low is effectively solved, meanwhile, the annealing temperature is accurately controlled through the control system, and the consistency of product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electronic connector manufacturing technology, and in particular to a high-frequency automatic annealing equipment for terminal production. Background Technology

[0002] With the widespread application of electronic products, the performance requirements for electronic connectors are also increasing. CMV series female terminals, as a commonly used electronic connector component, directly affect the reliability and lifespan of electronic products. According to the GJB5020 standard, CMV series female terminals must have a standard pull-out force after crimping and a lifespan of 100,000 mating cycles.

[0003] To meet the above technical requirements, the CMV female terminal needs to maintain high hardness at the mating end to ensure its service life and contact reliability. Conversely, the crimping end requires lower material hardness to prevent cracking during crimping and to minimize elastic rebound after processing, which could affect the stability of the crimped product. Therefore, the terminal needs to be hardened by quenching followed by localized annealing to achieve different hardness levels in different areas.

[0004] In existing technologies, the local annealing of CMV female terminals is mainly carried out manually. This involves operators manually placing the products into a fixture, then feeding them onto a conveyor belt, which then transports the products to an induction coil for annealing. This method has the following technical problems: low production efficiency, unable to meet the needs of mass production, and difficulty in ensuring the stability of the annealing temperature, affecting the consistency of product quality.

[0005] Therefore, there is an urgent need for equipment that can automatically complete the local annealing process of CMV female terminal to improve production efficiency, ensure product quality stability, and reduce production costs. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the issues of low production efficiency, fatigue caused by high repetitiveness of manual operation, and poor stability of product annealing temperature in the existing CMV female terminal annealing process, and to provide a high-frequency automatic annealing equipment that can automatically feed materials, operate without human intervention, and ensure stable annealing temperature.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A high-frequency automatic annealing equipment for terminal production includes: a frame base for supporting the entire equipment;

[0009] The feeding device, installed on the frame base, is used to automatically convey terminals, realizing unmanned feeding;

[0010] The conveying mechanism, connected to the feeding device, is used to receive and transport terminals;

[0011] The holding mechanism, connected to the conveying mechanism, is used to fix and convey the terminals;

[0012] A drive unit, connected to the clamping mechanism, is used to drive the clamping mechanism to move;

[0013] A heating device is installed along the movement path of the clamping mechanism to locally heat the terminals;

[0014] A collection device, located in the discharge area of ​​the clamping mechanism, is used to receive the heated terminals; and

[0015] The control system is electrically connected to the feeding device, conveying mechanism, drive device and heating device, and is used to control the working parameters of each component and precisely control the annealing temperature of the terminals;

[0016] The coordinated operation of the feeding device, conveying mechanism, clamping mechanism, driving device, heating device, collecting device and control system enables automated annealing of terminals, improving production efficiency.

[0017] Preferably, the feeding device includes a feeding vibratory plate, which has a spiral track and a discharge port for orienting the terminals and conveying them to the conveying mechanism.

[0018] Preferably, the transmission mechanism is a flat vibrator, which includes a flat vibrator rail and a vibrator. The flat vibrator rail is provided with a guide groove for guiding the terminal to move in a straight line.

[0019] Preferably, the holding mechanism is a feeding ratchet, and the outer circumference of the feeding ratchet has evenly distributed slots that match the shape of the terminal for fixing the terminal.

[0020] Preferably, the driving device is a servo motor, which is connected to the feeding ratchet via a shaft and is used to control the rotation speed and position of the feeding ratchet.

[0021] Preferably, the heating device is an induction coil, which is made of hollow copper tube and has a cooling medium inside, and is used to locally heat the terminals through the principle of electromagnetic induction.

[0022] Preferably, the collecting device includes a sloping groove and a fork-shaped stop. The fork-shaped stop is fixedly disposed on one side of the ratchet and its hollow area passes through the clamping mechanism to separate the terminal from the clamping mechanism. The sloping groove is disposed below the fork-shaped stop to guide the terminal into the collecting box.

[0023] Preferably, the control system is located inside the frame base and includes a PLC controller and a human-machine interface. The PLC controller is electrically connected to each actuator and is used to automatically adjust the working status of each actuator according to preset parameters. The human-machine interface is used to display the equipment operating status and set parameters.

[0024] Preferably, the terminal is a CMV series female terminal, and the heating device locally heats the crimping end of the CMV series female terminal, so that the hardness of the crimping end is reduced while the hardness of the mating end remains unchanged.

[0025] The beneficial effects of this utility model include the following:

[0026] 1. This utility model forms a complete automated annealing system by setting up a feeding device to automatically transport terminals, a conveying mechanism to receive and transport terminals, a clamping mechanism to fix terminals, and a control system to precisely control the working parameters of each component. This system realizes unmanned feeding and precise annealing of terminals, effectively solving the problem of low production efficiency in the annealing process of CMV female hole terminals. At the same time, the control system precisely controls the annealing temperature, ensuring the consistency of product quality and significantly improving production efficiency and product stability.

[0027] 2. This utility model employs a design that uses slots on the outer circumference of a feeding ratchet that are evenly distributed and match the shape of the terminal to fix the terminal. Combined with a servo motor to precisely control the ratchet speed and position, and an induction coil to locally heat the terminal, it forms a precise temperature-controlled automatic annealing system. This effectively solves the quality fluctuation problem caused by unstable annealing temperature, ensuring that the CMV female terminal maintains an appropriate low hardness at the crimping end while maintaining the original hardness at the mating end. This ensures that the terminal simultaneously meets the requirements for crimping reliability and service life, greatly improving the product qualification rate and consistency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the high-frequency automatic annealing equipment used for terminal production in Example 1;

[0029] Figure 2 This is a diagram showing the structural connection relationships of the components on the top surface of the frame base in Example 1;

[0030] Figure 3 This is an enlarged view of the structure of the induction coil, ratchet, and material collection device in Example 1.

[0031] Reference numerals in the attached diagram: 1. Induction coil; 2. Ratchet; 21. Cylindrical open slot; 3. Vibratory feeder; 4. Flat vibrator; 41. Flat vibratory rail; 42. U-shaped channel; 5. Servo motor; 6. Frame base; 7. Material collection device; 71. Inclined chute; 72. Fork-shaped stop. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments, but these specific embodiments do not limit the scope of protection of the present invention in any way.

[0033] Example 1

[0034] Referring to the attached diagram, a high-frequency automatic annealing device for terminal production includes an induction coil 1, a feeding ratchet 2, a feeding vibratory feeder 3, a flat vibrator 4, a servo motor 5, a control system, a frame base 6, and a material collection device 7. This automatic annealing device is mainly used for partial annealing of the crimped ends of CMV female terminal blocks. The device can automatically feed, automatically transfer, and precisely control the annealing temperature, achieving unmanned production.

[0035] The frame base 6 serves as the basic support structure for the entire equipment, with anti-vibration pads on its bottom support feet to improve the stability of the equipment. The top surface of the frame base 6 is a mounting platform for various functional modules.

[0036] The feeding vibratory plate 3 is mounted on a special bracket on the machine frame base 6. The bottom of the vibratory plate 3 is equipped with a vibratory plate motor. Through the electromagnetic vibration principle, the material is driven to move upward along the spiral track in the vibratory plate 3, and the terminal with the correct orientation is allowed to pass through the discharge port. The vibration frequency and amplitude of the vibratory plate 3 can be precisely adjusted by the control system to adapt to terminals of different specifications.

[0037] The flat vibrator 4 is connected to the discharge port of the feeding vibratory plate 3, maintaining the same horizontal height as the vibratory plate 3 to ensure smooth material transfer. The flat vibrator 4 consists of a horizontally mounted flat vibratory rail 41 and a vibrator at the bottom. The flat vibratory rail 41 has a U-shaped channel 42 for guiding the terminals to move in a straight line. The vibration direction of the flat vibrator 4 is horizontal and straight, effectively preventing material jumping and deviation during the conveying process. The end of the flat vibrator 4 is aligned with the feeding area of ​​the ratchet 2, ensuring that the material falls accurately into the slot of the ratchet 2.

[0038] The feeding ratchet 2 is installed at the discharge end of the vibrating coil 4 and is driven by a high-precision servo motor 5. The outer circumference of the ratchet 2 is evenly distributed with cylindrical open slots 21 that match the shape of the terminals. Each cylindrical open slot 21 ensures that the terminal can be securely embedded and will not fall out during rotation. The rotation speed of the ratchet 2 is precisely controlled by the servo motor 5 to ensure that each terminal stays in the induction coil 1 for a completely consistent time, thereby guaranteeing the stability of the annealing temperature. The feeding area of ​​the ratchet 2 is equipped with a guide device to guide the terminals fed from the vibrating coil 4 to accurately fall into the slots.

[0039] The induction coil 1, constructed from a hollow copper tube and housed in the rotation path of the ratchet 2, is cooled by water to prevent damage from high temperatures. Connected to a high-frequency power supply, the induction coil 1 generates a high-frequency electromagnetic field through electromagnetic induction. When a metal terminal passes through the coil, it cuts the magnetic lines of force, inducing a current that heats the terminal to its annealing temperature. The number of turns, inner diameter, and position of the induction coil 1 are carefully designed to ensure precise heating of the terminal's crimping end without affecting the rigidity of the mating terminals. The coil's power and energizing time are automatically adjusted by the control system based on the terminal material and specifications.

[0040] The material collection device 7 is located in the discharge area of ​​the ratchet 2 and is used to receive the annealed terminals. The collection device includes a chute 71, which guides the annealed terminals into the collection box by gravity. The collection device also includes a fork-shaped stop 72 fixed above the chute 71. The fork-shaped stop 72 is fixed to one side of the ratchet 2, and its hollow area passes through the ratchet 2. During the rotation of the ratchet 2, the terminals are blocked by the fork-shaped stop 72 and disengage from the cylindrical opening slot 21, fall into the chute 71, and then fall into the collection box.

[0041] The control system is housed inside the frame base 6 and includes a PLC controller, a touchscreen human-machine interface, various sensors, and actuators. The control system uses an industrial-grade PLC, offering high reliability and stability. The touchscreen human-machine interface is mounted on the front of the equipment, facilitating parameter setting and production status monitoring for operators. The control system monitors the material status of the vibratory feeder 3, the conveying status of the flat vibrator 4, the speed of the ratchet 2, and the temperature of the induction coil 1 in real time, and automatically adjusts the operating parameters of each component according to a preset program.

[0042] The servo motor 5 is mounted on the shaft of the ratchet 2 and connected to the ratchet 2 via a key to ensure stable and reliable transmission. The servo motor 5 enables precise speed and position control. The speed range of the servo motor 5 can be adjusted according to the annealing requirements of different terminals. The control system monitors the motor's operating status in real time through a closed-loop feedback mechanism to ensure that the rotation speed of the ratchet 2 is stable and consistent.

[0043] The working principle and method of the above-mentioned high-frequency automatic annealing equipment for terminal production are as follows:

[0044] The first step involves the operator setting parameters such as the material type, specifications, target annealing temperature, and production speed of the terminals via a touchscreen human-machine interface. The control system automatically calculates and sets the vibration parameters of the feeding vibratory feeder 3, the vibration intensity of the flat vibrator 4, the rotation speed of the ratchet 2, and the power of the induction coil 1 based on the input parameters. The operator then pours the terminals to be processed into the feeding vibratory feeder 3 in batches and starts the equipment.

[0045] In the second step, the vibratory feeder 3 starts working, causing the terminals to rise along the spiral track and simultaneously orienting them to ensure that all terminals are output in the same direction. The oriented terminals are then conveyed from the outlet of the vibratory feeder 3 to the flat vibrator 4, which conveys the terminals one by one to the feeding area of ​​the ratchet 2 through horizontal linear vibration.

[0046] Thirdly, when the terminal reaches the feeding area of ​​ratchet 2, the guide device guides the terminal to accurately fall into the slot of ratchet 2. Driven by servo motor 5, ratchet 2 rotates at a constant speed, sequentially bringing the slots containing the terminals into induction coil 1. The ratchet 2 uses a non-stop feeding method to ensure continuous production and improve efficiency. The control system monitors the speed and position of ratchet 2 in real time to ensure precise control of the terminal's dwell time in induction coil 1.

[0047] In the fourth step, when the slot containing the terminal enters the induction coil 1, the electromagnetic field generated by the high-frequency induction coil 1 causes the terminal crimping end to heat up rapidly. Due to the design of the shape and position of the induction coil 1, the heat is mainly concentrated at the terminal crimping end, achieving a localized annealing effect, while the hardness of the mating functional end remains unaffected. The control system precisely controls the annealing temperature and time by adjusting the power of the induction coil 1 and the rotation speed of the ratchet 2.

[0048] In the fifth step, after annealing, the terminals continue to rotate with the ratchet 2 to the discharge area. Blocked by the fork-shaped stop 72 and under the influence of gravity, they slide out of the slot and enter the collection box through the inclined chute 71. The entire process is automatic and continuous, requiring no manual intervention. The control system records production data in real time, including processing quantity, annealing temperature, and equipment operating status, facilitating subsequent quality traceability and production management.

[0049] By adopting this automated annealing equipment, the production efficiency of CMV female terminals has increased by more than 2 times compared to traditional manual operation, while ensuring the stability of annealing temperature and improving product quality consistency. Reducing manual operation lowers production costs and avoids operator fatigue caused by repetitive work, achieving true cost reduction and efficiency improvement. Furthermore, the equipment's modular design and intelligent control system make it highly adaptable, capable of easily adjusting to meet the processing needs of terminals of different specifications and materials, thus improving the equipment's versatility and return on investment.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any innovative improvements or substitutions based on the present invention should fall within the scope of the claims of the present invention. Furthermore, the parameters, materials, and processes mentioned in the above embodiments are not unique. Without departing from the technical essence of the present invention, those skilled in the art can make various alternative choices, and these alternative solutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A high frequency automatic annealing apparatus for terminal production, characterized by, include: The rack base is used to support the entire device; The feeding device is installed on the machine frame base; The conveying mechanism, connected to the feeding device, is used to receive and transport terminals; The holding mechanism, connected to the conveying mechanism, is used to fix and convey the terminals; A drive unit, connected to the clamping mechanism, is used to drive the clamping mechanism to move; A heating device is installed along the movement path of the clamping mechanism to locally heat the terminals; A collection device is installed in the discharge area of ​​the clamping mechanism to receive the heated terminals; as well as The control system is electrically connected to the feeding device, conveying mechanism, drive device, and heating device.

2. The high-frequency automatic annealing apparatus according to claim 1, wherein The feeding device includes a feeding vibratory plate, which has a spiral track and a discharge port, used to orient the terminals and transport them to the conveying mechanism.

3. The high frequency automatic annealing apparatus according to claim 1, wherein The transmission mechanism is a flat vibrator, which includes a flat vibrator rail and a vibrator. The vibrator is located below the flat vibrator rail, and the flat vibrator rail is provided with a guide groove for guiding the terminal to move in a straight line.

4. The high frequency automatic annealing apparatus according to claim 1, wherein The holding mechanism is a feeding ratchet, and the outer circumference of the feeding ratchet is evenly distributed with slots that match the shape of the terminal.

5. The high frequency automatic annealing apparatus according to claim 4, wherein The driving device is a servo motor, which is connected to the feeding ratchet via a shaft.

6. The high frequency automatic annealing apparatus according to claim 1, wherein The heating device is an induction coil, which is made of hollow copper tube and has a cooling medium inside to locally heat the terminals.

7. The high frequency automatic annealing apparatus according to claim 1, wherein The collecting device includes a sloping groove and a fork-shaped stop. The fork-shaped stop is located on one side of the ratchet, and the hollow area of ​​the fork-shaped stop passes through the clamping mechanism. The sloping groove is located below the fork-shaped stop.

8. The high frequency anneal apparatus of claim 1, wherein, The control system is located inside the frame base and includes a PLC controller and a human-machine interface. The PLC controller is electrically connected to each actuator.

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