Cable terminal crimping forming control device and control method

By determining the method of the ratio of the variable variable and pressure variables of cable terminals in sections, the problem of unstable quality and high equipment cost of cable terminals in the existing technology, and realized the process of automatic judgment pressure connection and adaptive pressure connection. Improve efficiency and quality.

CN119381860APending Publication Date: 2025-01-28BEIJING RAYIEE ZHITUO TECH DEV CO LTD
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Patent Information

Application Number
CN202411576833.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-01-28

AI Technical Summary

Technical Problem

The existing crimping equipment with 10kV cable terminals lacks data processing functions and relies on manual or single sensor detection, resulting in unstable crimping quality, and the equipment cost of using industrial control machines is high and space occupies a large amount of space.

Method used

The method of determining the ratio of the terminal variable to the pressure change ratio is adopted, and the data is obtained through the pressure sensor and the laser displacement sensor. The main control circuit calculates the ratio of the variable and pressure variable volume, and the pressure connection is automatically determined without setting a fixed pressure value.

Benefits of technology

The quality and efficiency of cable terminal pressure connection have been improved, the impact of human factors is reduced, the cost and space occupation of the equipment is reduced, and the adaptive pressure connection process is achieved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of cable terminal production, and provides a cable terminal crimping forming control device and control method, and the technical scheme is that the initial position information of cable terminals of different specifications before extrusion can be adaptively determined; the deformation quantity generated when the cable terminal is extruded under different positions of the pressure die and the variation quantity of the output pressure of the hydraulic pump are detected, and the crimping force error caused by different crimping forces required by terminals of different specifications or different manufacturers of the terminals of the same specification is considered. According to the method, whether the terminal and the cable conductor are tightly crimped or not is judged by adopting a method for judging the ratio of the terminal deformation quantity to the pressure variation in a segmented manner. According to the terminal forming quality control method, automatic extrusion is completed according to the actual diameter and thickness of the terminal and the diameter of the cable conductor, the deformation quantity and the pressure threshold value of the terminal do not need to be correspondingly set according to specifications, the conditions of excessive pressure connection and incompact pressure connection which are prone to occurring due to the fact that a fixed pressure value is set are completely eradicated, equipment operation is simplified, and operation efficiency is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of cable terminal production, and in particular relates to a cable terminal crimping molding control device and a control method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] During the construction of the distribution network, two sections of cables are usually connected by making a cold shrink cable intermediate head. Specifically, after the insulation layer of the cables at both ends is processed, the metal conductor of the cable is inserted into the two ends of the connecting tube respectively, and the connecting tube is squeezed and deformed by a crimping device until it is in close contact with the metal conductor of the cable, thereby firmly connecting the two sections of the cable together.

[0004] In the prior art, the crimping equipment for 10kV cable terminals, on the one hand, has no data processing function, and only relies on manual or single sensor detection data, and the detection standard relies on manual experience or single sensor data to judge whether the crimping is completed. However, 10kV cables have various specifications, and the corresponding connecting pipe diameters, wall thicknesses, etc. are also different. At the same time, for non-standard cables and cable terminals, the production specifications of various manufacturers are also different. If only a single sensor is used to detect a certain data to determine whether the crimping is completed, there will be problems such as overvoltage or insufficient crimping force on the terminal, which makes the crimping quality of the cable terminal uneven and greatly affected by human factors. On the other hand, the crimping equipment that uses an industrial computer as the control unit requires a large space inside the main body of the equipment to install and fix the industrial computer, data acquisition card and other components, and the industrial computer is expensive, and the external equipment cannot be cut according to the actual function, resulting in high production costs. Summary of the invention

[0005] In order to solve at least one technical problem existing in the above-mentioned background technology, the first aspect of the present invention provides a cable terminal crimping forming control device, which adopts a method of segmented judgment of the ratio of terminal deformation amount and pressure change amount to judge whether the terminal and the cable conductor are crimped tightly. There is no need to set the terminal deformation amount and pressure threshold according to the specifications, which eliminates the situation of over-crimping and false crimping that are easy to occur due to setting a fixed pressure value, simplifies equipment operation and improves work efficiency.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A first aspect of the present invention provides a cable terminal crimping forming control device, comprising a pressure sensor, a laser displacement sensor and a main control circuit; the main control circuit is electrically connected to the pressure sensor and the laser displacement sensor respectively;

[0008] Among them, the pressure sensor is used to obtain the pressure data of the cable terminal, and the laser displacement sensor is used to obtain the displacement of the lower slider of the crimping die;

[0009] The main control circuit is configured to: calculate the difference between the displacement of the lower slider of the current crimping die and the displacement of the lower slider of the last crimping die for cable terminals of different specifications, and obtain the deformation amount of the corresponding cable terminal;

[0010] Calculate the change in crimping force of the cable terminal at different positions of the crimping die;

[0011] When the ratio of the deformation amount of the cable terminal and the corresponding crimping force change amount falls into the set range, the crimping of the cable terminal is completed and the crimping is stopped.

[0012] Furthermore, the device also includes an emergency stop switch, a relay, a pressure relief valve relay and a hydraulic pump. The main control circuit is electrically connected to the relay and the pressure relief valve relay. The moving contacts of the relay and the pressure relief valve relay are electrically connected to the hydraulic pump respectively. The coil of the relay is electrically connected to the emergency stop switch, and the hydraulic pump is connected to the pressure sensor.

[0013] Furthermore, when crimping is stopped, the main control circuit is configured to: receive crimping result feedback instructions, and when the crimping result is qualified, control the coil of the pressure relief valve relay to be disconnected, thereby controlling the moving contact of the pressure relief valve relay to be disconnected to stop the hydraulic pump; when the crimping fails, determine whether the hydraulic pump stops working, and if so, control the emergency stop switch to reset.

[0014] Furthermore, the device also includes a first operational amplifier circuit and a second operational amplifier circuit, one end of the first operational amplifier circuit is connected to the main control circuit, and the other end is connected to the pressure sensor; one end of the second operational amplifier circuit is connected to the main control circuit, and the other end is connected to the laser displacement sensor.

[0015] Furthermore, the device also includes a liquid crystal display screen, the main control circuit and the liquid crystal display screen are electrically connected, and the main control circuit is configured to: draw a "displacement-pressure" curve according to the change in the crimping force of the cable terminal and the deformation of the cable terminal, and display it on the liquid crystal display screen.

[0016] Furthermore, the device includes a speaker, and the speaker is electrically connected to the main control circuit via RS485 communication.

[0017] The second aspect of the present invention provides a cable terminal crimping forming control method, which adopts a method of segmented judgment of the ratio of terminal deformation and pressure change to determine whether the terminal and the cable conductor are crimped tightly. There is no need to set the terminal deformation and pressure thresholds according to the specifications, which eliminates the over-crimping and false crimping that are prone to occur due to setting a fixed pressure value, simplifies equipment operation, and improves work efficiency.

[0018] In order to achieve the above object, the present invention adopts the following technical solution:

[0019] A second aspect of the present invention provides a cable terminal crimping and forming control method, using a cable terminal crimping and forming control device according to the first aspect, comprising the following steps:

[0020] Obtain the pressure data of cable terminals of different specifications and the displacement of the lower slider of the crimping die;

[0021] Calculate the difference between the displacement of the lower slider of the current crimping die and the displacement of the lower slider of the last crimping die for cable terminals of different specifications to obtain the deformation of the corresponding cable terminals;

[0022] Calculate the change in crimping force of the cable terminal at different positions of the crimping die;

[0023] When the ratio of the deformation amount of the cable terminal and the corresponding crimping force change amount falls into the set range, the crimping of the cable terminal is completed and the crimping is stopped.

[0024] A third aspect of the present invention provides a computer-readable storage medium.

[0025] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps in the cable terminal crimping and forming control method as described above.

[0026] A fourth aspect of the present invention provides a computer device.

[0027] A computer device comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps in the cable terminal crimping and forming control method as described above are implemented.

[0028] A fifth aspect of the present invention provides a program product.

[0029] A program product, which is a computer program product, includes a computer program. When the computer program is executed by a processor, the steps in the cable terminal crimping and forming control method as described above are implemented.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention can adaptively determine the initial position information of cable terminals of different specifications before being squeezed, detect the deformation amount of the cable terminals squeezed by the pressure mold at different positions and the change in the output pressure of the hydraulic pump, and consider the different crimping forces required for terminals of different specifications, or the crimping force errors caused by the same specification terminals produced by different manufacturers. The method of segmented judgment of the ratio of the terminal deformation amount and the pressure change amount is used to judge whether the terminal and the cable conductor are crimped tightly. The automatic extrusion is completed according to the actual terminal diameter, thickness and cable conductor diameter, and there is no need to set the terminal deformation amount and pressure threshold according to the specifications. The situation of excessive crimping and false crimping that are prone to occur due to setting a fixed pressure value is eliminated, which simplifies the equipment operation and improves the work efficiency.

[0032] 2. The single-chip embedded cable terminal crimping equipment of the present invention adopts a single-chip microcomputer as the control chip. According to the product function, functional modules such as serial port communication, external flash storage, and AD conversion are designed as needed. It has a simple and stable structure. The control circuit is integrated in the main control circuit board with a high degree of integration, which greatly saves the internal space of the equipment and reduces the size and weight of the equipment.

[0033] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0035] Figure 1 It is a schematic structural diagram of a cable terminal crimping and forming control device provided by an embodiment of the present invention;

[0036] Figure 2 This is a flow chart of a cable terminal crimping forming control method provided by an embodiment of the present invention;

[0037] Figure 3 The invention relates to a sensor signal detection operational amplifier circuit provided by an embodiment of the present invention.

[0038] Among them, 1. Speaker; 2. LCD display; 3. Crimping mold; 4. Laser displacement sensor; 5. Main control circuit board; 6. Pressure sensor; 7. Emergency stop switch; 8. Relay; 9. Pressure relief valve relay; 10. Hydraulic pump. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] As mentioned in the background technology of this application, 10kV cables have various specifications, and the corresponding connecting pipe diameters, wall thicknesses, etc. are also different. At the same time, for non-standard cables and cable terminals, the production specifications of various manufacturers are also different. If only a single sensor is used to detect a certain data to determine whether the crimping is completed, there will be problems such as overvoltage or insufficient crimping force on the terminal, which makes the crimping quality of the cable terminal uneven and is greatly affected by human factors. On the other hand, the crimping equipment that uses an industrial computer as the control unit requires a large space inside the main body of the equipment to install and fix the industrial computer, data acquisition card and other components, and the industrial computer is expensive, and the external equipment cannot be cut according to the actual function, resulting in high production costs.

[0043] During the crimping process of cable terminals, the present invention can adaptively determine the initial position information of cable terminals of different specifications before being squeezed, and detect the deformation amount of the cable terminals squeezed by the pressure mold at different positions and the change in the output pressure of the hydraulic pump. Taking into account the different crimping forces required for terminals of different specifications, or the crimping force errors caused by the same specification terminals produced by different manufacturers, the present invention adopts a method of segmented judgment of the ratio of the terminal deformation amount to the pressure change amount to judge whether the terminal and the cable conductor are crimped tightly. The extrusion is automatically completed according to the actual terminal diameter, thickness and cable conductor diameter, without the need to set the terminal deformation amount and pressure threshold according to the specifications, eliminating the situation of excessive crimping and false crimping that is prone to occur due to setting a fixed pressure value, simplifying the equipment operation and improving the work efficiency.

[0044] Embodiment 1

[0045] like Figure 1-Figure 2 As shown, this embodiment provides a cable terminal crimping and forming control device, including a main control circuit board 5, a pressure sensor 6 and a laser displacement sensor 4;

[0046] The main control circuit board 5 is electrically connected to the pressure sensor 6 and the laser displacement sensor 4 respectively, wherein the pressure sensor 6 is used to collect the pressure data of the cable terminal in real time, and the laser displacement sensor 4 is used to collect the displacement of the lower slider of the crimping die 3 in real time;

[0047] The main control circuit is configured to: calculate the difference between the displacement of the lower slider of the current crimping die and the displacement of the lower slider of the last crimping die for cable terminals of different specifications, and obtain the deformation amount of the corresponding cable terminal;

[0048] Calculate the change in crimping force of the cable terminal at different positions of the crimping die;

[0049] When the ratio of the deformation amount of the cable terminal and the change amount of the crimping force falls within the set range, the crimping of the cable terminal is completed and the crimping is stopped.

[0050] Through the above scheme, the method of segmented judgment of the ratio of terminal deformation and pressure change is adopted to judge whether the terminal and the cable conductor are tightly crimped. This terminal forming quality control method automatically completes the extrusion according to the actual terminal diameter, thickness and cable conductor diameter, without setting the terminal deformation and pressure threshold according to the specifications, eliminating the over-crimping and false crimping that are prone to occur due to setting a fixed pressure value, simplifying the equipment operation and improving the work efficiency.

[0051] The device also includes a first operational amplifier circuit and a second operational amplifier circuit. The first operational amplifier circuit and the second operational amplifier circuit have the same structure. Figure 3 In the structure shown, one end of the first operational amplifier circuit is connected to the main control circuit, and the other end is connected to the pressure sensor; one end of the second operational amplifier circuit is connected to the main control circuit, and the other end is connected to the laser displacement sensor.

[0052] Specifically, the pressure data of the pressure sensor 6 and the displacement data of the laser displacement sensor 4 are both 4-20mA current outputs, which are converted into 0-3.3V voltage analog data recognizable by the single-chip microcomputer through the operational amplifier circuit. The 0-3.3V voltage data is transmitted to the single-chip microcomputer, and after the single-chip microcomputer A / D conversion module, the single-chip microcomputer main control circuit board 5 can calculate the actual pressure and displacement values.

[0053] In this embodiment, the system single sampling time of the pressure sensor and the displacement sensor is 20ms, that is, 50 data acquisitions per second.

[0054] First, record the initial value of the crimping force change calculation. When the mold is unloaded, the pressure during the crimping process remains basically unchanged. The crimping force that drives the mold to extrude unloaded is recorded as P0. This value is a fixed value for unloaded crimping of the mold in this system.

[0055] When the cable terminal is crimped by the mold, the crimping force increases sharply when the cable terminal is squeezed. The value X of the laser displacement sensor at this moment is recorded. This value varies depending on the cable terminals of different specifications and manufacturers.

[0056] The cable terminal continues to be crimped. At the same time, the difference between the pressure sensor data detected this time and the previous data is calculated as ΔP, that is, the change in crimping force, and the difference between the displacement sensor data detected this time and the previous data is calculated as ΔX, that is, the terminal deformation.

[0057] When the terminal is pressed and in close contact with the cable, the deformation of the terminal hardly increases with the pressure, that is, ΔX / ΔP approaches zero. In actual use, when ΔX / ΔP is less than a certain value, the crimping is considered to be completed. After the crimping is completed, the microcontroller controls the relay coil to disconnect, thereby controlling the disconnection of the relay moving contact, that is, controlling the hydraulic pump to stop pressurizing.

[0058] The device also includes an emergency stop switch 7, a relay 8, a pressure relief valve relay 9 and a hydraulic pump 10, wherein the relay 8 is a hydraulic pump power relay for controlling the start and stop of the hydraulic pump; the pressure relief valve relay 9 is a control relay for the pressure relief valve on the hydraulic pump, controlling the automatic pressure relief of the hydraulic pump.

[0059] The main control circuit board 5 is electrically connected to the pressure relief valve relay 9 and the hydraulic pump 10, the moving contact of the relay 8 is electrically connected to the hydraulic pump 10, and the coil of the relay 8 is electrically connected to the emergency stop switch 7. By controlling the closing and opening of the relay 8 coil, the closing and opening of the moving contact of the relay 8 is controlled to achieve the purpose of controlling the start and stop of the hydraulic pump 10. The moving contact of the pressure relief valve relay 9 is electrically connected to the pressure relief valve, and the single-chip main control circuit board is electrically connected to the coil of the pressure relief valve relay 9. The single-chip main control circuit board can control the coil of the pressure relief valve relay 9 to be energized and de-energized, thereby controlling the moving contact of the pressure relief valve relay to be opened and closed, and achieving the purpose of controlling the closing and opening of the pressure relief valve.

[0060] When the crimping stops, the main control circuit is configured to: receive crimping result feedback instructions, and when the crimping result is qualified, control the coil of the pressure relief valve relay 9 to be disconnected, thereby controlling the moving contact of the pressure relief valve relay 9 to be disconnected, so that the hydraulic pump automatically releases pressure, and when the crimping fails, determine whether the hydraulic pump has released the pressure, and if so, control the emergency stop switch to reset.

[0061] The crimping device also includes a liquid crystal display screen 2, and the main control circuit board 5 is electrically connected to the liquid crystal display screen 2. The main control circuit 5 is configured to: draw a "displacement-pressure" curve by combining the initial value calculated by the crimping force change and the crimping force change of the cable terminal and the deformation of the cable terminal, and display it on the liquid crystal display screen.

[0062] A "displacement-pressure" curve is plotted according to the change in crimping force and the deformation of the cable terminal, and displayed on a human-computer interaction screen. In this embodiment, a liquid crystal display is used to observe the crimping process in real time at the control terminal, which facilitates the subsequent crimping quality control strategy adjustment to improve the subsequent threshold range adjustment.

[0063] The display screen can be used to complete human-computer interaction functions such as crimping parameter information configuration, crimping process information display, crimping curve history view, etc. The crimping configuration information includes operation time, operator, crimping number, etc.

[0064] When it is detected that the slope of the "displacement-pressure" curve is less than the set range value, the hydraulic pump is controlled to stop pressurizing. If the single-chip microcomputer detects that the slope of the curve enters the preset range, it means that the cable terminal is tightly connected to the cable metal conductor and the crimping is completed. The display UI interface sets the pressure threshold, deformation threshold and slope range of cables of various specifications of 10kV. The control system can automatically and effectively complete the cable terminal crimping based on the preset threshold and range data and the integrated sensor detection data.

[0065] The main control box also includes a speaker 1, which is electrically connected to the single-chip main control circuit board 5 and provides a voice prompt for the device operation link through RS485 communication.

[0066] The device also includes a flash memory, which uses a large-capacity flash memory to store previous crimping information, making it convenient to view subsequent crimping information.

[0067] Embodiment 2

[0068] This embodiment provides a cable terminal crimping and forming control method, using a cable terminal crimping and forming control device as described in the first embodiment, including the following steps:

[0069] Obtain the pressure data of cable terminals of different specifications and the displacement of the lower slider of the crimping die;

[0070] Calculate the difference between the displacement of the lower slider of the current crimping die and the displacement of the lower slider of the last crimping die for cable terminals of different specifications to obtain the deformation of the corresponding cable terminals;

[0071] Calculate the change in crimping force of the cable terminal at different positions of the crimping die;

[0072] When the ratio of the deformation amount of the cable terminal and the corresponding crimping force change amount falls into the set range, the crimping of the cable terminal is completed and the crimping is stopped.

[0073] Embodiment 3

[0074] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps in the cable terminal crimping and forming control method as described above are implemented.

[0075] Embodiment 4

[0076] This embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps in the cable terminal crimping and forming control method described above are implemented.

[0077] Embodiment 5

[0078] This embodiment provides a program product, which is a computer program product, including a computer program. When the computer program is executed by a processor, the steps in the cable terminal crimping and forming control method as described above are implemented.

[0079] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0080] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0081] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0082] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0083] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cable terminal crimping forming control device, characterized in that: It includes a pressure sensor, a laser displacement sensor and a main control circuit; the main control circuit is electrically connected to the pressure sensor and the laser displacement sensor respectively; Among them, the pressure sensor is used to obtain the pressure data of the cable terminal, and the laser displacement sensor is used to obtain the displacement of the lower slider of the crimping die; The main control circuit is configured to: calculate the difference between the displacement of the lower slider of the current crimping die and the displacement of the lower slider of the last crimping die for cable terminals of different specifications, and obtain the deformation amount of the corresponding cable terminal; Calculate the change in crimping force of the cable terminal at different positions of the crimping die; When the ratio of the deformation amount of the cable terminal and the corresponding crimping force change amount falls into the set range, the crimping of the cable terminal is completed and the crimping is stopped.

2. A cable terminal crimping forming control device as claimed in claim 1, characterized in that: The device also includes an emergency stop switch, a relay, a pressure relief valve relay and a hydraulic pump. The main control circuit is electrically connected to the relay and the pressure relief valve relay. The moving contacts of the relay and the pressure relief valve relay are electrically connected to the hydraulic pump respectively. The coil of the relay is electrically connected to the emergency stop switch, and the hydraulic pump is connected to a pressure sensor.

3. A cable terminal crimping forming control device as claimed in claim 2, characterized in that: When crimping stops, the main control circuit is configured to: receive crimping result feedback instructions, and when the crimping result is qualified, control the coil of the pressure relief valve relay to disconnect, thereby controlling the moving contact of the pressure relief valve relay to disconnect, so that the hydraulic pump automatically releases pressure; when crimping fails, determine whether the hydraulic pump has released pressure, and if so, control the emergency stop switch to reset.

4. A cable terminal crimping forming control device as claimed in claim 1, characterized in that: The device also includes a first operational amplifier circuit and a second operational amplifier circuit, wherein one end of the first operational amplifier circuit is connected to the main control circuit and the other end is connected to the pressure sensor; one end of the second operational amplifier circuit is connected to the main control circuit and the other end is connected to the laser displacement sensor.

5. A cable terminal crimping forming control device as claimed in claim 1, characterized in that: The device also includes a liquid crystal display screen, and the main control circuit is electrically connected to the liquid crystal display screen. The main control circuit is configured to: draw a "displacement-pressure" curve by combining the initial value calculated by the crimping force change, the crimping force change of the cable terminal and the deformation of the cable terminal, and display it on the liquid crystal display screen.

6. A cable terminal crimping forming control device as claimed in claim 1, characterized in that: The device comprises a speaker, and the speaker is electrically connected to a main control circuit via RS485 communication.

7. A cable terminal crimping forming control method, using a cable terminal crimping forming control device as claimed in any one of claims 1 to 6, characterized in that: The steps include: Obtain the pressure data of cable terminals of different specifications and the displacement of the lower slider of the crimping die; Calculate the difference between the displacement of the lower slider of the current crimping die and the displacement of the lower slider of the last crimping die for cable terminals of different specifications to obtain the deformation of the corresponding cable terminals; Calculate the change in crimping force of the cable terminal at different positions of the crimping die; When the ratio of the deformation amount of the cable terminal and the corresponding crimping force change amount falls into the set range, the crimping of the cable terminal is completed and the crimping is stopped.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of a cable terminal crimping forming control method as claimed in claim 7 are implemented.

9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the cable terminal crimping forming control method as described in claim 7 are implemented.

10. A program product, the program product being a computer program product, comprising a computer program, characterized in that: When the computer program is executed by a processor, the steps of a cable terminal crimping and forming control method as claimed in claim 7 are implemented.

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