CN1339727A - Computerized digital control system of laser metal surface enhanced processor - Google Patents

Abstract

A computer numerical control system for laser metal surface strengthening treatment. The two drive shafts of the laser metal surface strengthening treatment machine are each driven by a stepping motor. Stepping pulse, complete the motion control of two directions respectively. The control system uses screen controls to replace a large number of mechanical buttons and switches for operation, which not only greatly simplifies the control circuit and operation panel, but also has a friendly operation interface. The control program runs under the Windows98 environment, and opens the processing trajectory parameters and some machine tool structure parameters to the user, so that the control system has the ability of free programming and reconfiguration, and the programmable characteristics of the operation interface make the system have a good openness. sex.

Description

Computer Numerical Control System of Laser Metal Surface Strengthening Treatment Machine

Technical field:

The invention relates to a laser processing machine, and is a computer numerical control system for a laser metal surface strengthening treatment machine, in particular a computer numerical control system for a laser surface strengthening treatment machine for the inner wall of a cylinder body (sleeve).

Background technique:

Most of the laser surface strengthening treatment equipment adopts the method of workpiece movement and laser beam fixation for laser surface strengthening treatment, so it is more complicated to control the ever-changing workpiece; and the control system mostly uses a dedicated numerical control system, these systems are based on the environment of numerical control programs, and users need Use the NC language provided by the system to perform a series of operations such as NC program compilation, input, editing, maintenance, and debugging for various processing requirements. In order to ensure the needs of real-time control, the control program of the special system is often developed in assembly language and DOS environment, so the re-development of the system is more difficult. These systems also lack support for process testing of laser strengthening treatments. In addition, these systems all rely on the operation panel as the interface for human-computer interaction, requiring a large number of operation buttons, switches and indicator lights, the connection of the control circuit is complicated and cumbersome, and the operation and maintenance performance is poor.

Invention content:

The technical problem to be solved in the present invention In order to overcome the defective of above-mentioned prior art, a kind of computer numerical control system of laser surface strengthening treatment machine is provided, and it should have the following characteristics:

1. The control circuit is simple;

2. Easy to operate, free of programming for each processing, using screen operation;

3. Strong support for process test;

4. Strong redevelopment capability.

Technical idea of the present invention is:

The laser surface strengthening treatment on the inner wall of the cylinder is carried out by moving the laser head while the workpiece is fixed. The control program is programmed with VB5.0, with a modular design, running in the Windows 98 environment, and using screen controls to replace a large number of mechanical buttons and switches. operation, and make full use of the database to store the main processing programs and laser processing parameters for calling during laser strengthening treatment.

Concrete technical solution of the present invention is as follows:

A computer numerical control system of a laser metal surface strengthening treatment machine is characterized in that the system includes:

①The Z-axis stepping motor installed on the machine tool drives the lifting platform to move up and down through the transmission gear and the transmission screw;

②The lifting platform is equipped with a C-axis stepping motor, a main shaft and a main shaft transmission part - a pair of bevel gears and a pair of worm gears, and the stepping motor drives the main shaft to rotate through the bevel gears and worm gears;

③Computer and stepping motion control card. According to the requirements of laser strengthening processing, the computer sends stepping pulses to the driver through the stepping motion control card. upward movement;

④At the same time, the computer also issues instructions to control the movement of the shutter, so that the laser beam passes through the light guide system through the light outlet at the end of the spindle or does not emit light, forming a specific laser strengthening track on the metal surface of the inner wall of the cylinder.

Computer, operator panel and electrical board installed in one control cabinet:

①Computer consists of CPU motherboard, color display, CD drive, floppy disk drive, hard disk, keyboard, mouse, stepping motion control card and power supply;

②Operation panel, which is equipped with start button, pause button, emergency stop button, power switch, running indicator light, pause indicator light, emergency stop indicator light and power indicator light;

③Electrical board, the electrical board is equipped with two sets of DC power supply (each set includes +24V and +5V independent output), emergency stop relay, relay drive circuit board, two three-phase stepper motor drivers;

④The upper end of the electrical board is connected with the D-type socket of the stepping motion control card in the computer with a multi-core cable; the lower end is respectively connected with two three-phase hybrid The stepper motor, electrical board and electrical components are connected.

Use the on-screen interface of the color monitor as the operator interface.

Said screen interface is composed of a main interface, parameter editing sub-interface, system setting sub-interface and port checking sub-interface.

The main interface includes file access, parameter editing, system setting, manual adjustment, simulation operation, trial operation, processing operation, port inspection, database access, spindle forward rotation, spindle reverse rotation, spindle up, spindle down, Continuous operation, one-way operation, inching operation, linkage selection of rotating axis and lifting axis, section selection, section operation, full operation, rotation speed adjustment, lifting speed adjustment, start, pause, emergency stop, return to origin, return to zero, Exit the program, determine the zero point, shield and set the alarm sound, turn on/off the helium-laser, turn on/off the shielding gas, light emitting/blocking and other operation controls, as well as instructions and prompts related to these operations, and the main interface also includes a running indicator light , Pause indicator light, lower limit indicator light, upper limit indicator light, CO ₂ laser ready button and indication, compressed air ready button and indication, water cut-off alarm and indication, emergency stop alarm and indication, file name and trajectory parameters of the current processing file Table display, manual synthesis speed display, processing speed display, workpiece size display, processing origin and table position display, processing time count display, light point coordinate display, running prompt information display window, and trajectory simulation tracking drawing area, light point Cursor, the position cursor of the lifting axis.

The parameter editing sub-interface contains all the information of the current processing file, including the input and display window of the workpiece name, code, model, size, material, processing speed, spot diameter, origin position, etc., trajectory parameter table, trajectory parameter Edit window, operation controls such as section selection, insertion, deletion, confirmation, parameter saving and compilation, cancel modification, exit parameter editing, etc., as well as the file name and prompt information display window.

The system setting sub-interface includes the limit stroke of the machine tool, the maximum stroke, the mechanical zero point, the processing origin, the transmission ratio of the shaft, the motor resolution (subdivision), the motor starting frequency, the motor start-stop acceleration, the screw pitch, The setting and display window of processing speed range, workpiece size range, spot diameter range, etc., operation controls such as parameter confirmation and saving, cancellation of modification, and exit setting, as well as operation prompt information bar, this sub-interface can be accessed through an authorized password;

The selection range of system settings is as follows:

Shaft transmission ratio setting range: 1-64;

Motor resolution (subdivision) setting range: 500-10,000;

The maximum starting frequency of the motor is 5,000pps;

Motor operating frequency setting range: 92-5,999,700pps;

Screw pitch setting range: 4-6mm, when the screw pitch is equal to 0 or blank, the axis is the rotation axis, otherwise it is the moving axis;

The default setting of the system is a rotating shaft with a transmission ratio of 64; a lifting shaft with a transmission ratio of 2.5;

The resolution of the motor is 1000, and the maximum operating frequency of the motor is 20,000pps.

The port inspection sub-interface includes light output, light blocking, protective gas on, protective gas off, running light on, running light off, pause light on, pause light off, helium-neon laser on, helium-neon off Laser, start signal input, pause signal input, emergency stop signal input, upper limit signal input, lower limit signal input, water cutoff signal input and other operating controls and indicators.

The parameter editing sub-interface saves and calls all the information of workpiece processing in the form of files; divides sections and edits a form of laser-enhanced trajectory for each section to realize combined trajectory processing; in the form of a trajectory parameter table, Describe the processing requirements of enhanced trajectory; the rationalization of closed trajectory and trajectory parameters, which includes the calculation and adjustment of ring spacing and ring number, the calculation and inspection of helix pitch and lift angle, the division of straight grid, grid height, Calculation and adjustment of grid width and rhombus angle; use the save and compile operation control to trigger the compilation program, complete the compilation of processing files, and form various corresponding operating programs.

The event processing program corresponding to each operation control in the interface includes a startup program, a pause program, a zero point measurement program, a parameter input and editing program, a section editing program, various manual operation programs, a file saving and compiling program, and track processing Program and simulation tracking drawing program, as well as operation panel button event processing program, water cut event processing program, emergency stop event processing program, limit event processing program.

The advantages of the present invention are:

1. Due to the laser surface strengthening treatment machine tool adopting the laser head movement method, it can be used for different workpieces, and the movement of the light guide spindle is relatively light, so it is easy to drive and control;

2. Under the environment of Windows 98, the system can realize real-time control, real-time drawing and real-time response to events;

3. The user does not need to compile the processing program, and when the processing requirements change, the processing program does not need to be modified, only the corresponding processing parameters need to be changed;

4. The system also provides users with a friendly operation interface and a safe, reliable, simple and self-service environment;

5. The system has high processing line speed and speed resolution, as well as certain process test support means, which can obtain the best processing parameters to improve production efficiency and processing quality;

6. The system has a certain degree of openness, which can meet the control requirements of different machine tool structures of similar equipment manufacturers.

Description of drawings:

Fig. 1 is a schematic diagram of the system structure of the present invention.

Fig. 2 is a schematic diagram of the control cabinet of the system of the present invention.

Fig. 3 is a schematic diagram of the main interface of the operation interface ... of the present invention.

Fig. 4 is a schematic diagram of the parameter editing sub-interface of the present invention.

Fig. 5 is a schematic diagram of the system setting sub-interface of the present invention.

Fig. 6 is a schematic diagram of the port inspection sub-interface of the present invention.

Detailed ways:

Fig. 1 is a schematic diagram of the system structure of the present invention.

The Z-axis stepping motor 17 installed on the bed of the machine tool drives the lifting platform 21 to move up and down through the transmission gear 18 and the transmission screw 19. The lifting platform is equipped with a C-axis stepping motor 16, a main shaft part 26 and a main shaft transmission part... ...A pair of bevel gears 25 and a pair of worm gears 24, the motor 16 drives the main shaft 26 to rotate through the bevel gears 25 and the worm gears 24. The control program puts forward the walking control requirements to the stepping motion control card (hereinafter referred to as the stepping card) 9 in the form of walking commands, and the stepping card 9 sends out the stepping pulse signals PCW _C , DCCW _C and PCW _Z respectively as required , DCCW _Z to the stepper motor drivers 14 and 15, the drivers then generate the three-phase drive pulse signals required by the three-phase stepper motor drive, respectively drive the C-axis stepper motor 16 and the Z-axis stepper motor 17, thereby driving the main shaft Rotate or reverse, fall or rise, and complete the trip specified by the pulse number of the PCW signal. Since the laser beam follows the movement of the spindle 26, a corresponding strengthening track is formed on the surface of the workpiece. When the _CO2 laser beam enters the machine tool, it is blocked by the shutter 30, which is called light blocking. At this time, the laser processing is stopped and no strengthening track is produced. When the light is blocked, the light beam emitted by the helium-neon laser 33 is allowed to enter the light guide system 34 through the reflectors 32, 31, so as to adjust the optical path; when the computer 1 sends a driving signal to the output circuit 12, the solenoid valve 35 drives the cylinder 36 to remove the light The gate 30 allows the _CO2 laser beam to enter the light guide system 34, is reflected by the mirror at the end of the main shaft 26, and shoots from the light outlet to the surface of the workpiece, which is called light output, and the laser processing starts. During processing, if the cooling water pressure is insufficient, the water cut-off sensor 37 sends out a signal, which is quickly captured by the control system through the input circuit 11, and the driving signal of the solenoid valve 35 is canceled immediately, and the solenoid valve 35 resets and drives the shutter 30 back to the stop. light position and stop the machining process.

Fig. 2 is a schematic diagram of the control cabinet of the system of the present invention. Computer 1, operation panel 13 and electric board (not shown) are installed on this control cabinet:

①Computer 1 is composed of CPU mainboard 2, color display 3, CD drive 4, floppy disk drive 5, hard disk 6, keyboard 7, mouse 8, stepper card 9 and power supply 10, etc.;

②Operation panel 13, the operation panel 13 is equipped with a start button, a pause button, an emergency stop button, a power switch, a running indicator light, a pause indicator light, an emergency stop indicator light and a power indicator light;

③Electrical board, two groups of DC power supplies (each group containing +24V and +5V two independent outputs), emergency stop relay, relay drive circuit board and two three-phase stepper motor drivers 14, 15 are housed on the electric board;

④ The upper end of the electric board is connected with the D-type socket of the stepping motion control card 9 in the computer with a multi-core cable; its lower end is connected with two three-phase mixed Type stepper motor, electrical board and electrical components are connected.

The invention uses the screen interface of the color display as the operation interface, and uses the screen control to replace a large number of mechanical buttons and switches for operation, which not only greatly simplifies the control circuit and the operation panel, but also has a friendly operation interface. The control program of the present invention adopts VB5.0 programming, carries out modular design, and runs under Windows98 environment.

Said screen interface can be composed of a main interface and multiple sub-interfaces. A preferred embodiment of the present invention is that the screen interface is composed of a main interface, parameter editing sub-interface, system setting sub-interface and port checking sub-interface.

Its main interface is shown in Figure 3, and Figure 4, Figure 5 and Figure 6 are the parameter editing sub-interface, system setting sub-interface and port checking sub-interface respectively.

After the system starts running, the system displays a main interface on the display screen, see Figure 3, as the main operation interface of the control system. in:

Menu operation area: including file, parameter editing, operation mode, system setting, port checking, database, help and other options. The operation mode provides four operation modes in the drop-down menu, namely: manual adjustment, simulation operation, trial operation and processing operation.

Parameter display area: including the workpiece code, inner diameter and height of the workpiece, processing speed, hardening rate, worktable position, processing origin position and other parameters.

Trajectory parameter table: a display window including segment number, segment start point, segment height and processing parameters. At the position of each displayed segment number, there is a segment selection button; at the right end of each processing parameter display window, there is an open key (), which can be used to open the parameter table of the track graph of the segment. The minimum number of sections is 1 and the maximum is 8.

Speed Regulator: Contains a lifting speed regulator and a display window, a rotating speed regulator and a display window, a two-axis composite speed display window and a confirmation key. There is a decrement key () at the left end of each speed adjuster, and an increase key () at the right end. There is also a cursor on the speed adjuster, which can be pulled left (decrease) or right (increase) with the mouse Cursor, or click the down key, up key to select the running speed of the axis.

Trajectory drawing area: including the circular coordinate axis C, the vertical coordinate axis Z, the light spot Z-axis position cursor, the trajectory graphic simulation display area, the light spot machining position cursor, and the light spot machining position display window (relative to the mechanical zero point and relative to the workpiece upper end surface), and processing time display window, etc.

Operation keyboard area: including cooling water alarm and indication, CO ₂ laser ready button and indication, compressed air ready and indication, on/off helium-neon laser button and indication, emergency stop button and indication, alarm sound inhibit button, lifting shaft Selection button, rotation axis selection button, down button, up button, forward rotation button, reverse rotation button, light emitting/blocking button, shielding gas on/off button, start button, return to origin button, pause button, return to zero button, exit Program button, and status indication of each button, including trigger status, release status, lock status, prohibit status, etc.

Mode selection area: including the continuous button, one-way button, and jog button in the manual adjustment mode; the fast full-range button, fast section button, slow-speed full-range button, and slow-speed section button in the simulated operation mode; the full-range button, Section button; zero point measurement button, and the state indication of each button, including trigger state, release state, lock state, prohibition state, etc.

Operation prompt area: It includes the display window for operation prompt information, the file name and path display window of the processing file, and the upper limit, lower limit, running, stop and other indicator lights.

Under the main interface, the system also sets three sub-interfaces, which are: parameter editing sub-interface, system setting sub-interface and port inspection sub-interface. See accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6 respectively. Among them, the composition of the parameter editing sub-interface is as follows:

Workpiece parameter area: including workpiece code, name, model, material, inner diameter and height of the workpiece.

Processing parameter area: including processing area, processing speed, table position, processing origin position, spot diameter, etc.

Track editing area: including section number display window, section number increment key (▲), section number decrement key (), track name display window, track type selection key (), section height editing window, section Segment closed feature selection key (yes and no), track processing parameter editing area (including pitch, rise angle, helical direction of helix; grid height and vertical division number, grid width and circumference division number of straight grid, rhombus Angle; editing window for parameters such as the number of rings and ring spacing of flat rings), and the Insert button, Delete button, Confirm button and Cancel button.

Track parameter table: including the segment number, track name, segment starting point, segment height, track closure characteristics, and track processing parameters of segments 1-8.

File operation area: including file name display window, save and compile button, cancel modification button and exit parameter editing button.

The composition of the system setting sub-interface (see Figure 5) is as follows:

Coordinate system setting: including the setting window of limit travel, maximum travel, mechanical zero position, machining origin limit, etc.

Kinematic system setting: including the setting window of the transmission ratio of the lifting axis and the rotating axis, subdivision, starting frequency, processing speed, screw pitch, etc.

Machine tool specification setting: including workpiece size range, spot diameter range, processing speed range, etc.

Prompt information: Display window for operation prompt information.

Operation buttons: Contains buttons such as confirm save, cancel modification, and exit. This interface is only open to authorized users.

The composition of the port inspection sub-interface (see accompanying drawing 6) is as follows:

Input signal indicator light: including emergency stop signal, start signal, pause signal, water cut-off signal, upper limit signal and lower limit signal of the lifting shaft.

Signal output and indication: including running light driving button and indication, pause light driving button and indication, helium-neon laser driving button and indication, shielding gas driving button and indication, light blocking light driving button and indication, etc.

Exit button.

The operation and control process of the system for workpiece processing are as follows:

1. Turn on the power

2. Initialization

①Initialize various flag states of the system, operating parameters and stepper card 9;

② Import the default processing file as the current processing file;

③ display the main interface on the screen of the display 3;

④Initialize the main interface, display trajectory graphics and parameters, open zero point measurement, jog and port detection;

⑤ Check whether there is an emergency stop condition, if there is an alarm, and output a prompt message, and wait for the emergency stop condition to disappear.

3. Zero point determination

4. Create a current suitable processing file

①Use the processing file loaded by default;

② Select and load a saved processing file;

③ Edit or modify the current processing file to generate a new current file;

④The compiler generates the corresponding machining operation program, trial operation program and simulation operation program, and returns to the main interface.

5. Processing operation

(1) Select the processing operation mode;

(2) Turn on the CO ₂ laser, air compressor, cooling water, and report to the system;

(3) start;

(4) Check the preparation of the operating conditions (cooling water, laser operation, mechanical operation, sensor working conditions), and give corresponding prompt information;

(5) judge whether the main shaft position is at the machining origin, if not, then the main shaft 26 returns to the machining origin;

(6) Open protective gas;

(7) The spindle descends to the starting point of the first section, and enters the processing program of the first section;

(8) out of light;

(9) Start the processing program of this section's enhanced trajectory;

(10) judge whether there is a next processing section, if not, then do (14);

(11) judge whether there is a section interval, if not, then enter the processing program of the next section, redo (9);

(12) block light;

(13) The main shaft descends to the starting point of the lower section, and enters the machining program of the next section, redo (8);

(14) block light;

(15) Return to the processing origin;

(16) Turn off the protective gas;

(17) Exit processing and execute the corresponding shutdown program.

Description: During the processing, the program runs the drawing program at the same time, realizes the tracking display of the processing track and the position of the spindle, and displays the processing timing, and allows the pause operation and the continuation of processing after the pause.

In summary, and proved by experiments, the present invention has the following characteristics:

①Programming-free feature. The user only needs to modify the relevant processing parameters through the main interface of the display screen and the parameter setting sub-interface, and the system will automatically generate the processing program. Users do not need to master the programming and debugging technology of NC programs, and do not need to calculate processing data and perform detailed machine tool adjustments. These tasks are automatically completed by the system software combined with hardware.

② Open features. The user can reset the parameters of the motion system through the system setting sub-interface to adapt to the motion characteristics of different machine tools; by resetting the coordinate system parameters and specification parameters, it can adapt to the structural size requirements of different machine tools.

③Screen operation characteristics. All operations provided by the system to the user can be performed by clicking the screen controls with the mouse. The operation control can provide four states of trigger, release, lock and prohibition. The system uses various prompt information such as text, color and graphics, so that the operation has good visibility, self-service, safety and reliability.

④ Trajectory combination characteristics. It is allowed to divide a processing surface into 1-8 continuous or discontinuous processing sections, and each section allows setting different sizes and processing different strengthening tracks and different closed features.

⑤Friendly interface. The operation panel only has a start-stop button and a power switch, and the screen interface provides users with operation prompts and running information, prohibits impermissible operations, and provides operation guidance for users through help files.

⑥Help for process test. The process test required by the user can be carried out in the manual adjustment mode and the processing operation mode. The user can refer to the information provided by the processing file saved in the system, select the appropriate process parameters for the test; can change some parameters at any time to redo the test; can use the arrangement of the sections to complete the test of multiple trajectories at one time with one test piece; The speed regulator can be used in manual mode, and the processing speed required for the test can be selected in units of 1mm/s.

⑦The control circuit is simple. Owing to adopting the stepping card and screen control operation, the control circuit is simplified to the greatest extent, so that the reliability and maintainability of the control system are greatly improved compared with the prior art.

⑧Strong redevelopment capability. Since the control program is developed in the Windows98 environment using the VB programming language, the remodeling, upgrading and reorganization of the control system are more convenient and effective than the prior art.

Claims (10)

1. A computer numerical control system of a laser metal surface strengthening treatment machine, characterized in that the system comprises: ①The Z-axis stepping motor (17) installed on the machine tool drives the lifting platform (21) to move up and down through the transmission gear (18) and the transmission screw (19); ②The lifting platform (21) is equipped with a C-axis stepping motor (16), a main shaft (26) and a main shaft transmission component—a pair of bevel gears (25) and a pair of worm gears (24), and the stepping motor (16) passes through The bevel gear (25) and the worm gear (24) drive the main shaft (26) to rotate; ③Computer (1) and stepping motion control card (9), computer (1) sends stepping pulse to driver (14, 15) respectively through stepping motion control card (9) according to the requirements of laser strengthening treatment, and the driver ( 14, 15) drive the motion of the stepper motors (16, 17) and drive the main shaft (26) to complete forward rotation, reverse rotation, descent, and ascent motion; ④ Simultaneously, the computer (1) also issues an instruction to control the movement of the shutter (30), so that the laser beam passes through the light guide system (34) and passes through the light outlet at the end of the main shaft (26) to emit light or not to emit light, and the laser beam is placed on the metal surface of the inner wall of the cylinder. Form a specific laser strengthening track. 2. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 1, characterized in that a computer (1), an operation panel (13) and an electrical board are installed on a control cabinet: ①Computer (1) consists of CPU main board (2), color display (3), CD drive (4), floppy disk drive (5), hard disk (6), keyboard (7), mouse (8), stepping motion control card (9) and power supply (10) form; 2. The operation panel (13), which is equipped with a start button, a pause button, an emergency stop button, a power switch, a running indicator light, a pause indicator light, an emergency stop indicator light and a power supply indicator light; ③Electrical board, two groups of DC power supplies (each group containing +24V and +5V independent output), emergency stop relay, relay drive circuit board, two three-phase stepping motor drivers (14, 15) are installed on the electric board; ④The upper end of the electric board is connected with the D-type socket of the stepping motion control card (9) in the computer with a multi-core cable; Phase hybrid stepper motor, electrical board and electrical components are connected. 3. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 2, characterized in that the screen interface of the color display is used as the operation interface. 4. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 3, characterized in that said screen interface is composed of a main interface, parameter editing sub-interface, system setting sub-interface and port inspection sub-interface. 5. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 4, characterized in that said main interface includes file access, parameter editing, system setting, manual adjustment, simulation operation, trial operation, Processing operation, port check, database access, spindle forward rotation, spindle reverse rotation, spindle up, spindle down, continuous operation, one-way operation, jog operation, linkage selection of rotary axis and lifting axis, section selection, section operation, full process Operation, rotation speed adjustment, lifting speed adjustment, start, pause, emergency stop, return to origin, return to zero point, exit program, zero point measurement, alarm sound shielding and setting, turn on/off He-Ne laser, turn on/off shielding gas, light output Operating controls such as /light blocking, as well as instructions and prompts related to these operations, the main interface also includes running indicator light, pause indicator light, lower limit indicator light, upper limit indicator light, CO ₂ laser ready button and indication, compressed air is ready Button and indication, water cut-off alarm and indication, emergency stop alarm and indication, file name and trajectory parameter table display of the current processing file, manual synthesis speed display, processing speed display, workpiece size display, processing origin and table position display, processing time Counting display, light point coordinate display, running prompt information display window, trajectory simulation tracking drawing area, light point cursor, and lifting axis position cursor. 6. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 4, characterized in that said parameter editing sub-interface contains all the information of the current processing file, including workpiece name, code, model, size, material , Processing speed, spot diameter, origin position and other data input and display windows, trajectory parameter table, trajectory parameter editing window, section selection, insertion, deletion, confirmation, parameter saving and compilation, cancel modification, exit parameter editing, etc. Operation controls, as well as the file name and prompt information display window. 7. The computerized numerical control system of the laser metal surface strengthening treatment machine according to claim 4, characterized in that said system setting sub-interface includes the limit stroke of the machine tool, the maximum stroke, the mechanical zero point, the processing origin, and the transmission ratio of the shaft , Motor resolution (subdivision), motor starting frequency, motor start-stop acceleration, screw pitch, processing speed range, workpiece size range, spot diameter range, etc. setting and display window, parameter confirmation save, cancel modification, exit Setting and other operation controls, as well as the operation prompt information bar, this sub-interface can be accessed through the authorized password; The selection range of system settings is as follows: Shaft transmission ratio setting range: 1-64; Motor resolution (subdivision) setting range: 500-10,000; The maximum starting frequency of the motor is 5,000pps; Motor operating frequency setting range: 92-5,999,700pps; Screw pitch setting range: 4-6mm, when the screw pitch is equal to 0 or blank, the axis is the rotation axis, otherwise it is the moving axis; The default setting of the system is a rotating shaft with a transmission ratio of 64; a lifting shaft with a transmission ratio of 2.5; The resolution of the motor is 1000, and the maximum operating frequency of the motor is 20,000pps. 8. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 4, characterized in that said port inspection sub-interface includes light output, light blocking, opening of protective gas, closing of protective gas, opening of running light, closing of Run light, turn on pause light, turn off pause light, turn on helium-neon laser, turn off helium-neon laser, start signal input, pause signal input, emergency stop signal input, upper limit signal input, lower limit signal input, water cut off signal Input and other operational controls and indicators. 9. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 6, characterized in that the parameter editing sub-interface saves and calls all the information of workpiece processing in the form of files; Section editing is a form of laser enhanced trajectory to realize combined trajectory processing; in the form of trajectory parameter table, it describes the processing requirements of enhanced trajectory; the rationalization of closed trajectory and trajectory parameters, which includes the calculation and adjustment of ring spacing and ring number , Calculation and inspection of helix pitch and lift angle, calculation and adjustment of straight grid division, grid height, grid width and rhombus angle; use the save and compile operation control to trigger the compilation program to complete the compilation of the processing file, Form the corresponding various operating procedures. 10. The computer numerical control system of the laser metal surface strengthening treatment machine according to claim 4 or 5 or 6 or 7, characterized in that the event processing program corresponding to each operation control in the interface includes a startup program and a pause program , zero point measurement program, parameter input and editing program, segment editing program, various manual operation programs, file saving and compiling program, track processing program and simulation tracking drawing program, as well as operation panel button event processing program, water cut off event processing program, Emergency stop event handler, limit event handler.

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