Control method and control system of automatic chuck clamp

Abstract

The embodiment of the invention discloses a control method and a control system for an automatic chuck clamp, and the method intelligently judges the production stage of a workpiece according to workpiece size information input by a user, and recommends three different control modes of manual control, human-computer interface control or G code automatic control. Manual control is adopted to ensure the stability and the accuracy when the first production or the production frequency is small; and with the increase of production times, man-machine interface control and G code automatic control are gradually transited, so that the automation degree and the production efficiency are improved. A user only needs to input basic workpiece size information, the system can automatically set key parameters, and the operation process is simplified. And meanwhile, the state of the chuck clamp is checked in real time through the human-computer interface, so that the production controllability and safety are enhanced. The production process is optimized, the overall production efficiency is improved, the production cost and the rejection rate are reduced, and the method is suitable for automatic control over various chuck clamps.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, and in particular to a control method and a control system of an automatic chuck fixture. Background Art

[0002] In the field of mechanical processing, the development of automatic control technology for chucks, as an important device for fixing workpieces, is of great significance for improving production efficiency and ensuring processing accuracy. Traditional chuck control methods mostly use manual or semi-automatic modes, requiring operators to clamp and release the workpiece through manual adjustment or simple electrical control. However, with the rapid development of the manufacturing industry, the requirements for workpiece processing accuracy and production efficiency are increasing, and traditional control methods can no longer meet the needs of modern production.

[0003] In the prior art, although there are some chuck fixture control systems with a high degree of automation, these systems often have the following problems:

[0004] 1. Single control method: Most existing systems can only provide a single control method, such as manual control or simple automatic control, and lack the ability to flexibly select the control method according to the workpiece production stage and processing requirements.

[0005] 2. Lack of intelligent judgment: The system cannot automatically judge and select the optimal control method based on key data such as the size information of the workpiece and the number of production times, resulting in low production efficiency and easy loss of processing accuracy due to human error.

[0006] 3. Parameter setting is cumbersome: In the existing system, users need to manually input a large number of parameters, such as the jaw stroke limit threshold, clamping threshold, etc. These operations are not only cumbersome, but also prone to errors, affecting production efficiency and processing quality.

[0007] 4. Lack of real-time feedback and monitoring: Most existing systems lack real-time feedback mechanisms and cannot display the current status of the chuck fixture in real time, such as the current diameter, clamping force and other key parameters, resulting in users being unable to detect problems and make adjustments in a timely manner. Summary of the invention

[0008] The present invention overcomes the deficiencies of the above-mentioned technologies and provides a control method and a control system for an automatic chuck fixture.

[0009] A first aspect of an embodiment of the present invention discloses a control method for an automatic chuck fixture, the method comprising the following steps:

[0010] S1. Receive the size information of the workpiece to be processed input by the user, determine the production stage of the workpiece according to the size information, and recommend the user to select manual control, human-machine interface control or G code automatic control according to different production stages;

[0011] S2. When it is determined that the workpiece is produced for the first time or the number of productions is lower than the preset threshold value N1, the user is prompted to select the manual control mode first. The user controls the hydraulic device to pump oil and control the direction through the panel buttons to achieve the clamping and loosening of the chuck fixture;

[0012] S3. When it is determined that the number of productions is greater than N1 but less than the preset threshold value N2, the user is prompted to select the human-machine interface control mode first. The user enters the jaw stroke limit threshold in the human-machine interface according to the workpiece size information, and edits the preset G code module to control the chuck fixture to move to the specified stroke and clamp the workpiece, and at the same time view and verify the stroke threshold in real time;

[0013] S4. When it is determined that the number of productions is greater than N2, the user is prompted to select the G code automatic control mode first, and the stored G code instructions are called according to the workpiece size information to realize the full-automatic clamping and loosening of the chuck fixture.

[0014] Preferably, the workpiece size information includes at least the workpiece diameter; the jaw stroke limit threshold includes a minimum diameter and a maximum diameter; the specified stroke threshold is the diameter; the clamping threshold is the clamping diameter; and the actual stroke threshold is the current diameter.

[0015] Preferably, the step S3 further comprises: when a new workpiece is replaced for production or the continuous production time of the same workpiece exceeds a predetermined time, a calibration threshold is input in a human-machine interface to automatically calibrate the jaws, and the calibration threshold is a calibration diameter.

[0016] Preferably, the specific operations in step S3 through the human-machine interface control method include:

[0017] The user enters the password to modify the minimum diameter and maximum diameter values;

[0018] After the chuck is clamped to the minimum diameter, it is relaxed to the calibration diameter position for calibration;

[0019] Move the chuck fixture to clamp or loosen according to the diameter value;

[0020] Real-time feedback of current diameter parameters is provided to determine whether the clamping diameter and preset pressure values ​​are met. If so, the movement is stopped and the chuck fixture is locked.

[0021] Preferably, the G code automatic control method includes the following steps:

[0022] According to the workpiece size information, obtain the calibration diameter Y1 of the current workpiece to be processed, and use the GX1 EY1 instruction to instruct the chuck fixture to return to the minimum diameter and then move to the Y1 position;

[0023] Get the loosening diameter Y2, and use the GX1 EY2 command to instruct the chuck to loosen to the Y2 position;

[0024] Use the M44 command to activate the automatic door control system to open the automatic door;

[0025] Use the M109 command to trigger the robot to load the material, and then continue to execute after waiting for the loading completion signal;

[0026] Get the clamping diameter Y3, and use the GX1 DY3 command to instruct the chuck to clamp to the Y3 position;

[0027] Use M45 command to control the automatic door closing;

[0028] The above steps are executed cyclically to process, loosen and unload the workpiece.

[0029] Preferably, the G code program module includes a program calling unit 11, a parameter display unit 12 and a source code storage unit 13. The program calling unit 11 is used to display the called G code instructions in real time, and the parameter display unit 12 is used to display the current workpiece coordinate information, the remaining moving distance, the G code status and the production progress; the source code storage unit 13 is used to store the G code instructions written by the user or generated by the system.

[0030] Preferably, the parameter display unit 12 includes a position display subunit 121 , a G code status display subunit 122 and a production progress display subunit 123 .

[0031] Preferably, the G code instructions in the program calling unit 11 include:

[0032] In the GX1 FY1 instruction, Y1 represents the specific value of the calibration diameter;

[0033] The GX1 EY2 instruction, wherein Y2 represents the specific value of the diameter;

[0034] The GX1 DY3 instruction, where Y3 represents the specific value of the clamping diameter.

[0035] Preferably, the hydraulic device is a hydraulic motor, and the chuck fixture is a three-jaw chuck fixture; when the hydraulic motor stops, the hydraulic station stops pumping oil, the hydraulic motor in the three-jaw chuck fixture stops, the pressure is maintained, and the three-jaw chuck fixture stops moving.

[0036] A second aspect of an embodiment of the present invention discloses a control system, the control system comprising:

[0037] A memory 601 storing executable program codes;

[0038] a processor 602 coupled to the memory 601;

[0039] The processor 602 calls the executable program code stored in the memory 601 to execute the control method of an automatic chuck fixture as described in the first aspect of the claims.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. This method can intelligently determine the production stage of the workpiece according to the workpiece size information input by the user, and recommend different control methods such as manual control, human-machine interface control, and G-code automatic control, so as to improve the flexibility of the production process, and enable users to choose the most appropriate control method according to the needs of different production stages, thereby optimizing the production process and improving the overall production efficiency. Specifically, during the first production or when the number of productions is small, through the manual control method, the user can intuitively adjust the clamping and relaxation state of the chuck fixture to ensure the stability and accuracy in the early stage of production. With the increase in the number of productions, it gradually transitions to the human-machine interface control and G-code automatic control methods, reducing human intervention and improving the degree of automation, thereby significantly improving production efficiency and processing accuracy. In addition, under the human-machine interface control method and the G-code automatic control method, the user only needs to input the basic workpiece size information, and the system can automatically calculate and set the key parameters such as the claw travel limit threshold and the clamping threshold, which greatly simplifies the operation process. At the same time, through the real-time parameter display on the human-machine interface and the preset and call of the G-code module, the difficulty of operation is reduced, so that non-professionals can also easily get started. Moreover, users can view the current status of the chuck fixture, such as the current stroke parameters and clamping force, in real time through the human-machine interface, and make timely adjustments when problems are found. This real-time monitoring and feedback mechanism enhances the controllability of the production process, and also helps to timely discover and eliminate potential safety hazards, thereby improving the safety of the production process. At the same time, with the improvement of the degree of production automation, manual intervention and errors are reduced, and production costs and scrap rates are reduced.

[0042] 2. The method of this case sets the calibration threshold, that is, the diameter is calibrated by the diameter distance after the chuck fixture is clamped to the minimum diameter and then relaxed to the specified position diameter. This makes the method of this case have an automatic calibration mechanism for the calibration diameter, ensuring that the chuck fixture can be restored to its initial precise state when used for a long time or replaced with a new workpiece, thereby ensuring the clamping force and position accuracy of the claws, improving the processing accuracy and consistency of the workpiece. At the same time, the automatic calibration mechanism reduces the need for manual calibration, thereby reducing errors caused by human factors. The user only needs to enter the calibration threshold in the human-machine interface, and the system can automatically complete the calibration process, which not only improves efficiency but also ensures accuracy. In addition, the automatic calibration mechanism simplifies the operating process, so that operators do not need to have too much professional skills to perform calibration operations. This reduces training costs while improving the efficiency and accuracy of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a flow chart of a first embodiment of a control method for an automatic chuck fixture disclosed in the present invention;

[0044] Figure 2 It is a structural schematic diagram of a G code module of a control method for an automatic chuck fixture disclosed in the present invention;

[0045] Figure 3 It is a structural schematic diagram of a second embodiment of a control method for an automatic chuck fixture disclosed in the present invention; DETAILED DESCRIPTION

[0046] The features of the present invention and other related features are further described in detail below through embodiments to facilitate understanding by those skilled in the art:

[0047] Embodiment 1

[0048] like Figure 1 As shown, a control method for an automatic chuck fixture is applied to the chuck fixture, comprising the following steps:

[0049] S1. Receive the size information of the workpiece to be processed input by the user, determine the production stage of the workpiece according to the size information, and recommend different control modes to the user according to different production stages; the different control modes include: manual control, human-machine interface control, and G code automatic control;

[0050] S2. When it is determined that the workpiece is produced for the first time or the number of productions is lower than the preset value N1, the user is prompted to select the manual control mode first; when the manual control mode is selected, the user controls the motor of the hydraulic device to pump oil through the panel buttons, and controls the hydraulic solenoid valve on the hydraulic device to control the direction of the oil pumping, so that the chuck fixture is clamped and released;

[0051] S3. When it is determined that the number of production times is greater than the preset value N1 but less than the preset value N2, the user is prompted to select the human-machine interface control mode first; when the human-machine interface control mode is selected, the chuck jaw stroke limit threshold is input in the human-machine interface according to the size information of the workpiece to be processed, and the preset G code module is edited according to the workpiece size information, and the automatic claw is controlled to move to the specified stroke threshold and automatically clamp the workpiece through the instructions of the G code module, and the actual stroke threshold is checked in real time through the current stroke parameters on the human-machine interface to see whether it meets the preset clamping threshold. If it meets the preset clamping threshold, the movement stops and the chuck is locked;

[0052] S4. When it is determined that the number of production times is greater than the preset value N2, the user is prompted to use the G code automatic control mode first; when the G code automatic control mode is selected, the G code module calls the stored G code instructions to control the automatic clamping and loosening of the chuck fixture according to the size information of the workpiece to be processed. Among them, N2 is usually 5-50, which means that the workpiece production is still in the sample stage. N2 is determined by taking the average value of multiple different types of workpieces that have achieved the yield and stability to meet the mass production requirements.

[0053] As described above, the method can intelligently determine the production stage of the workpiece according to the workpiece size information input by the user, and recommend different control modes such as manual control, human-machine interface control, and G-code automatic control, so as to improve the flexibility of the production process, and also enable users to choose the most appropriate control mode according to the needs of different production stages, thereby optimizing the production process and improving the overall production efficiency. Specifically, during the first production or when the number of productions is small, through the manual control method, the user can intuitively adjust the clamping and relaxation state of the chuck fixture to ensure the stability and accuracy in the early stage of production. With the increase in the number of productions, it gradually transitions to the human-machine interface control and G-code automatic control mode, reducing human intervention and improving the degree of automation, thereby significantly improving production efficiency and processing accuracy. In addition, under the human-machine interface control mode and the G-code automatic control mode, the user only needs to input the basic workpiece size information, and the system can automatically calculate and set the key parameters such as the jaw stroke limit threshold and the clamping threshold, which greatly simplifies the operation process. At the same time, through the real-time parameter display on the human-machine interface and the preset and call of the G-code module, the difficulty of operation is reduced, so that non-professionals can also easily get started. Moreover, users can view the current status of the chuck fixture, such as the current stroke parameters and clamping force, in real time through the human-machine interface, and make timely adjustments when problems are found. This real-time monitoring and feedback mechanism enhances the controllability of the production process, and also helps to timely discover and eliminate potential safety hazards, thereby improving the safety of the production process. At the same time, with the improvement of the degree of production automation, manual intervention and errors are reduced, and production costs and scrap rates are reduced.

[0054] As an optional implementation, in an embodiment of the present invention, the workpiece size information includes at least: the workpiece diameter; the jaw stroke limit threshold is the minimum diameter distance and the maximum diameter distance that the chuck can move, and is marked as the minimum diameter and the maximum diameter; the specified stroke threshold is the diameter distance when the chuck moves to just fit the workpiece, and is recorded as the reaching diameter; the clamping threshold is the diameter distance when the chuck clamp clamps the workpiece, and is recorded as the clamping diameter; the actual stroke threshold is the diameter distance that the chuck clamp currently actually moves, and is recorded as the current diameter.

[0055] As described above, this method limits the travel range of the chuck fixture by setting the minimum diameter and the maximum diameter, so that the chuck fixture can be accurately adjusted according to the size information of different workpieces. By inputting the limit threshold of the jaw stroke through the human-machine interface, the system can automatically control the jaw to move to the specified position, thereby realizing flexible clamping of workpieces of different sizes. The setting of the clamping threshold, that is, the clamping diameter, provides a clear judgment standard for the clamping state of the chuck fixture. Through the real-time parameter display on the human-machine interface, the user can intuitively see whether the current stroke threshold, that is, the current diameter, meets the requirements of the clamping threshold. Once the clamping threshold is reached, the system will automatically stop moving and lock the chuck fixture, thereby ensuring the stability and safety of the workpiece during processing.

[0056] As an optional implementation, step S3 further includes:

[0057] When a new workpiece is replaced for production or the continuous production time of the same workpiece exceeds a predetermined time, the calibration threshold of the chuck fixture is input in the human-machine interface, and the jaws of the chuck fixture are automatically calibrated; the calibration threshold is the diameter distance after the chuck fixture is clamped to the minimum diameter and then relaxed to the specified position diameter, and is recorded as the calibration diameter.

[0058] As described above, the method of this case has an automatic calibration mechanism for the calibration diameter by setting the calibration threshold, that is, the chuck fixture is clamped to the minimum diameter and then relaxed to the diameter of the specified position diameter, which ensures that the chuck fixture can be restored to its initial precise state when used for a long time or replaced with a new workpiece, thereby ensuring the clamping force and position accuracy of the claws, improving the processing accuracy and consistency of the workpiece. At the same time, the automatic calibration mechanism reduces the need for manual calibration, thereby reducing errors caused by human factors. The user only needs to enter the calibration threshold in the human-machine interface, and the system can automatically complete the calibration process, which not only improves efficiency but also ensures accuracy. In addition, the automatic calibration mechanism simplifies the operating process, so that operators do not need to have too much professional skills to perform calibration operations. This reduces training costs while improving the efficiency and accuracy of operators.

[0059] As an optional implementation, in an embodiment of the present invention, in step S3, "when the human-machine interface control mode is selected, according to the size information of the workpiece to be processed, the jaw stroke limit threshold of the chuck fixture is input in the human-machine interface, and the preset G code module is edited according to the workpiece size information, and the automatic jaw is controlled to move to the specified stroke threshold and automatically clamp the workpiece through the instructions of the G code module, and the actual stroke threshold is checked in real time through the current stroke parameters on the human-machine interface to see whether it meets the preset clamping threshold, if it meets the motion stop and lock the chuck fixture" includes:

[0060] When the human-machine interface control mode is selected, the user can modify the minimum and maximum diameter values ​​of the chuck fixture by entering the password according to the actual diameter of the chuck fixture;

[0061] After the chuck fixture is clamped to the minimum diameter, it is relaxed to the calibration diameter position input by the user for calibration;

[0062] After calibration, the chuck clamp is clamped or loosened and moved to the corresponding position according to the diameter value input by the user;

[0063] The diameter position corresponding to the current three-jaw chuck is displayed through the human-machine interface, and the current diameter parameter is fed back in real time when the three-jaw chuck moves; it is judged whether the current diameter parameter meets the preset clamping diameter and whether the clamping force meets the preset pressure value. If both are met, the movement is stopped and the chuck is locked.

[0064] As mentioned above, the user can modify the minimum diameter and maximum diameter values ​​by entering a password according to the actual diameter size of the chuck fixture. On the one hand, the equipment or system using the method of this case can adapt to chuck fixtures of different specifications, improving the flexibility and adaptability of the system; on the other hand, the password must be entered to unlock the modification authority to ensure the safety and stability of production. The method of calibrating the chuck fixture after clamping it to the minimum diameter and then relaxing it to the calibration diameter position entered by the user ensures that the clamping force and position accuracy of the jaws can be restored to the initial state after each use, thereby improving the accuracy of calibration. The user can directly enter the diameter value according to the size information of the workpiece to be processed, and the chuck fixture will clamp or relax and move to the corresponding position according to this input, so as to simplify the operation process and enable the user to complete the clamping and positioning of the workpiece more quickly. At the same time, the human-machine interface can display the corresponding diameter position of the current three-jaw chuck fixture in real time, and feedback the current diameter parameter in real time when the chuck fixture moves, so that the user can monitor the status of the chuck fixture in real time to ensure the accuracy and safety of the operation process. In addition, the system can determine whether the current diameter parameter meets the preset clamping diameter, and whether the clamping force meets the preset pressure value. Only when these two conditions are met will the movement stop and the chuck fixture be locked, ensuring the clamping quality and processing accuracy of the workpiece.

[0065] As an optional implementation, in an embodiment of the present invention, the G code automatic control method includes the following steps:

[0066] According to the workpiece size information, the calibration diameter Y1 of the current workpiece to be processed is obtained, and the GX1 EY1 instruction is used to instruct the chuck fixture to return to the minimum diameter and then move to the Y1 position; X1 represents the value of the diameter of the current workpiece to be processed, and Y1 represents the value of the calibration diameter; for example, the G220E250 instruction indicates that the chuck fixture with a diameter of 220mm is loosened from the minimum diameter position to the diameter position of 250mm for calibration.

[0067] According to the workpiece size information, the loosened diameter Y2 of the current workpiece to be processed is obtained; the GX1 EY2 instruction is used to instruct the chuck to be loosened to the Y2 position; Y2 represents the value of the loosened diameter; for example, the G220E220 instruction indicates that the chuck is loosened to the diameter 220mm position.

[0068] Use the control instruction M44 to activate the automatic door control system and control the automatic door to open so as to carry out subsequent workpiece processing or loading and unloading operations;

[0069] Use the control instruction M109 to trigger the robot to load the workpiece to be processed; wait for the robot to complete the loading signal, and after receiving the signal, continue to the next step;

[0070] According to the workpiece size information, the clamping diameter Y3 of the current workpiece to be processed is obtained; the GX1 DY3 instruction is used to instruct the chuck fixture to clamp to the Y3 position; Y3 represents the value of the clamping diameter; for example, the G220E210 instruction indicates that the chuck fixture with a diameter of 220mm is clamped to a diameter position of 210mm.

[0071] Use control instruction M45 to control the automatic door to close;

[0072] After the automatic door is closed, the workpiece is processed. After the processing is completed, the GX1 EY2 instruction is used again to release the current workpiece to be processed. The control instruction M44 is used again, and the M110 instruction is used to control the robot to unload the material.

[0073] After the robot has finished unloading, the above steps are executed repeatedly.

[0074] As described above, the method of this case realizes the automatic control of the calibration, loosening, clamping, loading and unloading of the workpiece through G code instructions, which reduces the manual operation links and improves production efficiency. By flexibly adjusting the calibration diameter, loosening diameter and clamping diameter of the chuck fixture according to different workpiece size information, it can adapt to the processing needs of workpieces of various specifications. The control method of G code instructions makes the system easy to program and modify, which is convenient for coping with different processing tasks. The automated loading and unloading and processing process reduces the workpiece replacement and waiting time, and improves the utilization rate and production efficiency of the equipment. By cyclically executing the above steps, a continuous and stable processing process is achieved, further improving production efficiency.

[0075] As an optional implementation, in the embodiment of the present invention, the G-code program module includes a program calling unit 11, a parameter display unit 12 and a source code storage unit 13. The program calling unit 11 is used to display the called G-code instructions in real time, and the parameter display unit 12 is used to display the current workpiece coordinate information, the remaining moving distance, the G-code status and the production progress; the source code storage unit 13 is used to store the G-code instructions written by the user or generated by the system for subsequent calling by the program calling unit 11.

[0076] As described above, the program calling unit displays the called G code instructions in real time, so that the operator can clearly understand the operation being performed by the current system, and enhances the transparency and controllability of the operation. The setting of the parameter display unit can display key parameters such as the current workpiece coordinate information and the remaining moving distance, so as to help the operator to grasp the processing progress and status in real time, and make adjustments in time. Through the G code status information provided by the parameter display unit, the operator can quickly determine whether the system has an abnormality or error, which improves the diagnosis speed and accuracy of the fault. Moreover, the operator can flexibly adjust the processing parameters and processes according to the information provided by the parameter display unit to adapt to the needs of different workpieces, thereby improving the flexibility and adaptability of production. Through the remaining moving distance that can be fed back in real time, it is helpful for the operator to accurately control the processing process, reduce unnecessary waiting and waste, and improve production efficiency. Through the joint setting of the program calling unit and the parameter display unit, the operator does not need to have too much professional knowledge, and can understand the system status and operation process through an intuitive interface, which reduces the difficulty of operation and training costs.

[0077] As an optional implementation, in the embodiment of the present invention, the G code instructions in the program calling unit 11 include:

[0078] In the GX1 FY1 instruction, Y1 represents the specific value of the calibration diameter;

[0079] The GX1 EY2 instruction, wherein Y2 represents the specific value of the diameter;

[0080] The GX1 DY3 instruction, where Y3 represents the specific value of the clamping diameter.

[0081] As described above, in an embodiment of the present invention, the X1FY1 instruction can accurately calibrate the chuck fixture to the specified calibration diameter Y1, ensuring that the initial state of the fixture is accurate. The GX1 EY2 instruction and the GX1 DY3 instruction are respectively used to control the fixture to be loosened to the specified loosening diameter Y2 and clamped to the specified clamping diameter Y3, which helps to improve the accuracy and consistency of processing. Through these specific G-code instructions, the operator can easily achieve precise control of the chuck fixture without complicated manual adjustments or settings. This greatly simplifies the operating process and improves work efficiency. At the same time, by modifying the Y value in the instruction, the system can adapt to workpieces of different specifications, improving the flexibility and adaptability of the system.

[0082] As an optional implementation, in an embodiment of the present invention, the parameter display unit 12 includes: a position display subunit 121 for displaying the current workpiece coordinate information and the remaining distance that the current chuck fixture needs to move, a G-code status display subunit 122 for displaying the G-code instructions currently being used for processing, and a production progress display subunit 123 for displaying the current processing time and the cumulative processing quantity.

[0083] As described above, the position display subunit in the parameter display unit of this case can display the current workpiece coordinate information and the remaining distance that the chuck fixture needs to move in real time, so that the operator can intuitively understand the position of the workpiece and the movement status of the fixture, improving the visibility and accuracy of the operation. The setting of the G-code status display subunit displays the G-code instructions currently being used in the processing in real time, so that the operator can monitor the execution of instructions during the processing at any time, promptly discover and handle abnormalities or errors, and enhance the monitoring capability of the system. The setting of the production progress display subunit can display the current processing time and the cumulative processing quantity, providing an important basis for production scheduling, so that the operator can reasonably arrange the production plan based on this information, optimize the production process, and improve production efficiency.

[0084] As an optional implementation, in the embodiment of the present invention, the hydraulic device is a hydraulic motor, and the chuck fixture is a three-jaw chuck fixture; when the hydraulic motor stops, the hydraulic station stops pumping oil, the hydraulic motor in the three-jaw chuck fixture stops, the pressure is maintained, and the three-jaw chuck fixture stops moving. In this way, even the hydraulic motor can maintain stable pressure, so that the three-jaw chuck fixture can maintain a stable clamping force, so as to ensure the machining accuracy of the workpiece and prevent the workpiece from loosening or shifting during the machining process.

[0085] Embodiment 2

[0086] like Figure 3 As shown, a control system may include:

[0087] A memory 601 storing executable program codes;

[0088] a processor 602 coupled to the memory 601;

[0089] The processor 602 calls the executable program code stored in the memory 601 to execute Figure 1-2 Any control method for an automatic chuck fixture.

[0090] The embodiment of the present invention discloses a computer-readable storage medium storing a computer program, wherein the computer program enables a computer to execute Figure 1-2 Any control method for an automatic chuck fixture.

[0091] The embodiments of the present invention further disclose a computer program product, wherein when the computer program product is run on a computer, the computer is enabled to execute part or all of the steps of the methods in the above method embodiments.

[0092] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, the storage medium including a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically-erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM), or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0093] The control method and control system of an automatic chuck fixture disclosed in an embodiment of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A control method for an automatic chuck fixture, applied to the chuck fixture, characterized in that: The following steps are involved: S1. Receive the size information of the workpiece to be processed input by the user, determine the production stage of the workpiece according to the size information, and recommend the user to select manual control, human-machine interface control or G code automatic control according to different production stages; S2. When it is determined that the workpiece is produced for the first time or the number of productions is lower than the preset threshold value N1, the user is prompted to select the manual control mode first. The user controls the hydraulic device to pump oil and control the direction through the panel buttons to achieve the clamping and loosening of the chuck fixture; S3. When it is determined that the number of productions is greater than N1 but less than the preset threshold value N2, the user is prompted to select the human-machine interface control mode first. The user enters the jaw stroke limit threshold in the human-machine interface according to the workpiece size information, and edits the preset G code module to control the chuck fixture to move to the specified stroke and clamp the workpiece, and at the same time view and verify the stroke threshold in real time; S4. When it is determined that the number of productions is greater than N2, the user is prompted to select the G code automatic control mode first, and the stored G code instructions are called according to the workpiece size information to realize the full-automatic clamping and loosening of the chuck fixture.

2. The control method according to claim 1, characterized in that: The workpiece size information includes at least the workpiece diameter; the jaw stroke limit threshold includes a minimum diameter and a maximum diameter; the specified stroke threshold is the diameter; the clamping threshold is the clamping diameter; and the actual stroke threshold is the current diameter.

3. The control method of the automatic chuck fixture according to claim 2 is characterized in that The step S3 also includes: when a new workpiece is replaced for production or the continuous production time of the same workpiece exceeds a predetermined time, a calibration threshold is input in the human-machine interface to automatically calibrate the jaws, and the calibration threshold is a calibration diameter.

4. The control method of the automatic chuck fixture according to claim 3 is characterized in that The specific operations in step S3 through the human-machine interface control method include: The user enters the password to modify the minimum diameter and maximum diameter values; After the chuck is clamped to the minimum diameter, it is relaxed to the calibration diameter position for calibration; Move the chuck fixture to clamp or loosen according to the diameter value; Real-time feedback of current diameter parameters is provided to determine whether the clamping diameter and preset pressure values ​​are met. If so, the movement is stopped and the chuck fixture is locked.

5. The control method according to claim 2, characterized in that: The G code automatic control method includes the following steps: According to the workpiece size information, obtain the calibration diameter Y1 of the current workpiece to be processed, and use the GX1 EY1 instruction to instruct the chuck fixture to return to the minimum diameter and then move to the Y1 position; Get the loosening diameter Y2, and use the GX1 EY2 command to instruct the chuck to loosen to the Y2 position; Use the M44 command to activate the automatic door control system to open the automatic door; Use the M109 command to trigger the robot to load the material, and then continue to execute after waiting for the loading completion signal; Get the clamping diameter Y3, and use the GX1 DY3 command to instruct the chuck to clamp to the Y3 position; Use M45 command to control the automatic door closing; The above steps are executed cyclically to process, loosen and unload the workpiece.

6. The control method according to claim 5, characterized in that: The G code program module comprises a program calling unit (11), a parameter display unit (12) and a source code storage unit (13); the program calling unit (11) is used to display the called G code instructions in real time; the parameter display unit (12) is used to display the current workpiece coordinate information, the remaining moving distance, the G code state and the production progress; and the source code storage unit (13) is used to store the G code instructions written by the user or generated by the system.

7. The control method according to claim 6, characterized in that: The parameter display unit (12) comprises a position display subunit (121), a G code status display subunit (122) and a production progress display subunit (123).

8. The control method according to claim 6, characterized in that: The G code instructions in the program calling unit (11) include: In the GX1 FY1 instruction, Y1 represents the specific value of the calibration diameter; The GX1 EY2 instruction, wherein Y2 represents the specific value of the diameter; The GX1 DY3 instruction, where Y3 represents the specific value of the clamping diameter.

9. The control method of the automatic chuck fixture according to claim 8, characterized in that The hydraulic device is a hydraulic motor, and the chuck fixture is a three-jaw chuck fixture; when the hydraulic motor stops, the hydraulic station stops pumping oil, the hydraulic motor in the three-jaw chuck fixture stops, the pressure is maintained, and the three-jaw chuck fixture stops moving.

10. A control system, characterized in that: The control system comprises: A memory (601) storing executable program code; a processor (602) coupled to the memory (601); The processor (602) calls the executable program code stored in the memory (601) to execute the control method of an automatic chuck fixture as described in any one of claims 1 to 9.

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