CN203459785U - Large-size multi-shaft linkage electrochemical machining machine tool - Google Patents

Abstract

The utility model discloses a large-scale multi-axis linkage electrolytic processing machine tool, which comprises a machine tool body, an electrolytic processing pulse power supply, an electrolyte circulation filtering system, and an integrated control system; the integrated control system can realize machine tool movement parameters, electrolyte parameters and pulse power supply Integrated control of parameters; the electrolyte circulation filter system adopts double-loop parallel filter electrolyte, the electrolyte input into the processing area is of high cleanliness, and has the function of automatic adjustment of electrolyte parameters (temperature, concentration, PH value); among them, the machine tool body includes Bed, horizontal workbench, turntable, spindle, workbox, machine tool cover, the machine tool can realize five-axis linkage; a CNC rotary table is set under the turntable, and a sliding device is set under the workbox. When installing and adjusting large-sized workpieces and cathodes, the workbox It can be moved to the top of the machine tool cover through the sliding device; there are protective devices under the horizontal worktable and the turntable, which can effectively isolate the electrolyte from the CNC rotary table and the transmission mechanism.

Description

A large-scale multi-axis linkage electrolytic machining machine tool

technical field

The utility model relates to a large-scale multi-axis linkage electrolytic processing machine tool, which belongs to the field of electrolytic processing machine tools.

Background technique

Electrolytic machining is a processing method that uses the principle of electrochemical anodic dissolution to remove materials, and belongs to the field of special processing. Electrolytic machining has the advantages of high processing efficiency, good surface quality, no electrode loss, and wide processing range. With the deepening of research on electrolytic machining technology, the accuracy and stability of electrolytic machining have been greatly improved, and its application is becoming more and more extensive. It is especially suitable for the machining of integral components of difficult-to-machine materials and thin-walled structures in the aerospace industry.

Electrolytic processing equipment is mainly composed of machine tool body, electrolyte system, power supply system and control system. At present, domestic electrolytic processing equipment has a low degree of integrated control in these systems, and the control system basically refers to the motion control part of the machine tool body. , and the power supply system, electrolyte system and motion control system are basically independent of each other, which makes the electrolytic machining process require multiple personnel to cooperate to complete the operation, which greatly increases the difficulty of operation. In addition, because each system is independent of each other, it is impossible to set a suitable shutdown sequence. Once an abnormality occurs during processing, it is difficult for the equipment to stop in an optimal way, which makes the hard contact between the tool cathode and the workpiece and spark discharge occur frequently, resulting in the cathode and workpiece. The damage of the workpiece will cause unnecessary economic losses. In view of the above situation, the inventor of the utility model proposed an integrated control system and control method for numerical control electrolytic machining as shown in Chinese Patent Application No. 201210573615.4.

In the electrolytic machining process, for different types of materials, the current and electrolyte parameters required by electrolytic machining are often required to be different. At present, the focus of domestic machine tool design is to improve the rigidity of the mechanical structure of the machine tool. For those that affect the accuracy of electrolytic machining The research work on power parameters and electrolyte parameters is less invested, and the parameters of electrolytic processing, especially the parameters of electrolyte, are generally difficult to adjust and the efficiency is low. Therefore, the degree of flexibility is low, and it is difficult to meet the processing needs of different materials. As a result, the utilization rate of the machine tool is not high, especially when the process test is carried out, the preparation time in the early stage of the test is too long and the efficiency is low. In view of the above situation, the inventor of the utility model proposed an electrolytic machining electrolyte circulating filter system and its control method as shown in Chinese Patent Application No. 201210393387.2.

The working box is a place for electrolytic machining. In addition to positioning and installing workpiece fixtures and cathodes to ensure their accurate relative positions, the current and electrolyte should also be introduced into the machining gap area according to certain requirements. The fixed part of the work box and the movable parts must be reliably sealed. Due to the special requirements for sealing, the operating space of the existing machine tool work boxes is generally too narrow, which causes some inconvenience to the installation and adjustment of workpiece fixtures and tool cathodes. In addition, due to the corrosiveness of the electrolyte, non-stainless steel parts such as the CNC rotary table and transmission mechanism of the electrolysis machine tool must be effectively isolated from the electrolyte.

Contents of the invention

The utility model aims at the shortcomings of the current electrolytic processing equipment, such as low flexibility, difficult adjustment of processing parameters, and low integration degree, and utilizes the proposed integrated control system and control method of numerical control electrolytic processing, and the electrolytic processing electrolyte circulation filtration system and Its control method proposes a large-scale multi-axis linkage electrolytic machining machine tool with convenient adjustment of electrolytic machining parameters, high degree of integration and convenient operation.

The utility model adopts the following technical scheme: a large-scale multi-axis linkage electrolytic processing machine tool, including a machine tool body, an electrolytic processing pulse power supply, an electrolyte circulation filtering system and an integrated control system, and is characterized in that: the machine tool body includes a bed, Horizontal worktable, turntable, main shaft, working box and machine tool cover, in which the horizontal worktable is set above the bed, and realizes X-direction movement through the X-direction transmission mechanism, the turntable is installed in the horizontal worktable, and the turntable rotates through the ct direction below it The mechanism realizes the rotation in the ct direction; the main shaft is installed on the side of the horizontal worktable, and the main shaft realizes the rotation in the cx direction, Y direction and Z direction through the transmission mechanism, and the movement in the above five directions realizes five-axis linkage under the control of the integrated control system; There is a sliding device under the working box. When installing and adjusting large-sized workpieces and cathodes, the working box can be moved to the top of the machine tool cover through the sliding device; Guard isolated from the transmission mechanism.

The X-direction motion is realized by the servo motor directly driving the ball screw pair through the coupling. The CT-direction rotary mechanism includes the CT servo motor and the CNC rotary table. The turntable and the CNC rotary table are connected by a short axis, and the CT-direction rotary motion It is realized by the worm gear mechanism in the numerically controlled rotary table driven by the ct servo motor; the movement mechanism of the main shaft includes a cx-direction rotary mechanism, a y-direction transmission mechanism and a z-direction transmission mechanism arranged on the rear side of the main shaft, wherein the cx-direction rotary motion passes through the cx Realized by servo motor, the Y-direction movement and Z-direction movement are realized by the servo motor directly driving the ball screw pair through the coupling.

The sliding device provided under the work box includes a slide block, a linear slide rail, and a support rod, and a work box support plate is arranged between the work box and the slide block, and the work box, the slide block, and the work box support plate are screwed To be fixed together, a linear slide rail mounting seat is arranged between the linear slide rail and the support rod, and the linear slide rail, the support rod and the linear slide rail mounting seat are also fixed together by screws.

The protection device arranged under the horizontal workbench and the turntable includes a workbench shield arranged under the horizontal workbench, an operation panel shield arranged under the turntable, and an X-axis slide shield arranged above the X-axis slide plate (5-4), the electrolyte flows into the gap between the turntable and the horizontal workbench, and then enters the bed shield from between the workbench shield, the X-axis slide shield and the operation panel shield, and finally flows into the electrolyte circulation filtration system.

The integrated control system includes a host computer, a feed motion control system, an electrolyte parameter control system, a pulse power supply control system, and a data acquisition and processing system. Fluid parameters and power parameters, during processing, the data fed back by the data acquisition card is used to accurately control each parameter, and at the same time display the processing parameter signal in real time. When an abnormality occurs during the processing, the control system will stop running and give an alarm.

The electrolyte output from the electrolytic processing system is filtered and then returned to the electrolytic processing system. The electrolyte output from the electrolytic processing system is divided into two loops, wherein the first loop includes a main pump and a two-stage series filter, which is based on The parameters set by the integrated control system adjust the flow and pressure of the electrolyte in the input processing area and purify the electrolyte. The second loop includes a plate and frame filter press and a flow transmitter to dry out the electrolytic products and impurities in the electrolyte tank. And discharged, the electrolyte tank is also equipped with an electrolyte parameter control system, the electrolyte parameter control system includes a heat exchanger immersed in the electrolyte, a temperature sensor, a concentration sensor, a PH sensor, and a solenoid valve and a pipeline to communicate with the electrolytic solution. The PH value liquid adjustment tank and the concentration liquid adjustment tank connected to the liquid tank, the output signals of the temperature sensor, concentration sensor and pH sensor are transmitted to the integrated control system through the data acquisition card, and the integrated control system controls the heat exchanger and pH value according to the collected signals. Adjust the parameters of the electrolyte by using the value adjusting tank and the concentration adjusting tank.

The electrolytic machining pulse power supply is a high-frequency pulse power supply, and the integrated control system sets the frequency, pulse width and duty ratio of the electrolytic machining pulse power supply.

The large-scale multi-axis linkage electrolytic processing machine tool is also provided with a low-voltage short-circuit tool setting device, and the low-voltage short-circuit tool setting device includes a low-voltage DC power supply. The positive and negative poles of the low-voltage DC power supply are connected to the workpiece and the cathode through wires, respectively. A relay switch and a current sensor are also arranged between the positive pole of the low-voltage DC power supply and the workpiece.

The utility model has the following beneficial effects:

(1) The machine tool of this utility model adopts a push-back type working box, so that the machine tool has a large operating space, which facilitates the installation and adjustment of workpieces and cathodes, and is especially suitable for processing some large-sized parts;

(2) Protective devices are provided under the horizontal workbench and the CNC rotary table of the machine tool of this utility model, which can effectively isolate the electrolyte from the CNC rotary table and the X-direction feed mechanism, thereby preventing the electrolyte from affecting the CNC rotary table and the X direction. Corrosion is caused to the feeding mechanism, which well protects the CNC rotary table and the X-direction transmission mechanism;

(3) The ct and cx axes of the machine tool in this utility model are all rotated by servo motors, which have the advantages of high positioning accuracy and resolution, and can guarantee high precision for processing integral components with free-form surfaces;

(4) In this utility model, the machine tool motion system, power supply system, and electrolyte filtration circulation system realize integrated control, all of which can be controlled by an industrial computer, which reduces the number of operators, and through collaborative control, processing can be realized Abnormal protection in the process, thereby reducing economic losses;

(5) The electrolyte circulation filtration system of the utility model adopts double-loop parallel filter electrolyte, the electrolyte input into the processing area has high cleanliness, and has the function of automatic adjustment of electrolyte parameters (temperature, concentration, PH value), and the electrolysis in the device The liquid circulation filtration process is divided into two parts: rough filtration and fine filtration, which effectively improves the efficiency of electrolyte filtration and reduces the usage of electrolyte.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a large-scale multi-axis linkage electrolytic machining machine tool of the present invention.

Fig. 2 is a three-dimensional schematic diagram of the machine tool body of the large-scale multi-axis linkage electrolytic machining machine tool of the present invention.

Fig. 3 is a three-dimensional structural diagram of the movement of the large-scale multi-axis linkage electrolytic machining machine tool of the present invention.

Fig. 4 is a partial three-dimensional diagram of the sliding device of the working box.

Fig. 5 is a schematic diagram of the CNC rotary table of the machine tool and the protection device of the X-direction transmission mechanism.

Fig. 6 is a partially enlarged view of the CNC rotary table of the machine tool and the protection device of the X-direction transmission mechanism.

Fig. 7 is a schematic diagram of the integrated control system of the large-scale multi-axis linkage electrolytic machining machine tool of the present invention.

Figure 8 is a schematic diagram of the electrolyte circulation filtration system.

Fig. 9 is a schematic diagram of the short-circuit tool setting system of the large-scale multi-axis linkage electrolytic machining machine tool of the present invention.

Among them: 1-1-machine tool body, 1-2-electrolytic machining pulse power supply, 1-3-electrolyte circulating filter system, 1-4-integrated control system, 2-1-bed, 2-2-horizontal workbench , 2-3-turntable, 2-4-spindle, 2-5-working box, 2-6-machine tool cover, 3-1-X guide rail, 3-2-ct servo motor, 3-3-X ball Screw pair, 3-4-X-axis sliding plate, 3-5-X-direction screw nut seat, 3-6-NC rotary table, 3-7-X-direction servo motor, 3-8-cx servo motor, 3 -9-Y-axis sliding plate, 3-10-Y-direction servo motor, 3-11-Y-direction rail, 3-12-beam, 3-13-Z-direction servo motor, 3-14-Z-direction ball screw pair , 3-15-balance weight, 3-16-Z-direction screw nut seat, 3-17-Z-direction guide rail, 3-18-Y-direction screw nut seat, 3-19-Y-direction ball screw pair, 3 -20-column, 4-1-work box support plate, 4-2-slider, 4-3-linear slide rail, 4-4 linear slide rail mounting seat, 4-5-support rod, 5-1-operation Board protective cover, 5-2-block, 5-3-worktable protective cover, 5-4-X-axis slide plate protective cover, 5-5-bed protective cover.

Detailed ways

Please refer to Figure 1, the large-scale multi-axis linkage electrolytic machining machine tool of the present invention includes a machine tool body 1-1, an electrolytic machining pulse power supply 1-2, an electrolyte circulating filter system 1-3, and an integrated control system 1-4.

Please refer to Figure 2 and Figure 3, the machine tool body 1-1 includes a bed 2-1, a horizontal table 2-2, a turntable 2-3, a spindle 2-4, a working box 2-5 and a machine tool cover 2-6 , the turntable 2-3 and the horizontal worktable 2-2 are made of marble, the turntable 2-3 is connected with the CNC rotary table 3-6 through a short axis, and the above CNC rotary table 3-6 can be purchased from Yantai Global Machine Tool Accessories Company, The machine tool can realize five-axis linkage, which are the X-direction movement of the horizontal table 2-2, the ct-direction rotation of the turntable 2-3, and the cx-direction rotation, Y-direction movement and Z-direction movement of the main shaft 2-4. There is a sliding device under the working box 2-5. When installing workpieces and cathodes, the working box 2-5 can slide to the top of the machine tool cover 2-6 along the linear slide rail fixed on the bed 2-1, which is especially suitable for large-sized parts. Installation and adjustment. A protective device is provided under the horizontal workbench 2-2 and the turntable 2-3, which can effectively isolate the electrolyte from the numerical control turntable 3-6 and the X-direction transmission mechanism. The integrated control system 1-4 can realize the integrated control of machine tool motion parameters, electrolyte parameters and pulse power parameters. Electrolyte circulating filtration system 1-3 adopts double-loop parallel filtration of electrolyte, the electrolyte entering the processing area has high cleanliness, and has the function of automatic adjustment of electrolyte parameters (temperature, concentration, PH value).

Fig. 3 discloses the three-dimensional structural diagram of the movement of the large-scale multi-axis linkage electrolytic machining machine tool of the present invention, which specifically illustrates the movement of the machine tool, the movement form of the horizontal workbench 2-2 and the turntable 2-3 is as follows: An X-direction transmission mechanism is provided, and the X-direction transmission mechanism has an X-direction ball screw transmission pair, and one end of the X-direction ball screw pair 3-3 in the X-direction ball screw transmission pair is connected by a coupling and an X-direction servo motor 3-7 connection, the other end is supported by a bearing fixed on the bed, and the CNC rotary table 3-6 is set under the horizontal worktable 2-2, and the CNC rotary table 3-6 is connected with the X-axis sliding plate 3-6 through screws. 4 is fixed, the X-axis sliding plate 3-4 is connected with the X-direction lead screw nut seat 3-5 in the X-direction transmission mechanism by screws and can move along the X-direction rail 3-1 on the bed 2-1. A ct-direction rotary mechanism is arranged under the turntable 2-3, and the ct-direction rotary motion is realized by the ct servo motor 3-2 driving the worm gear and worm mechanism in the numerically controlled rotary table 3-6.

The movement form of the main shaft 2-4 in the utility model is as follows: the rear side of the main shaft 2-4 is provided with a cx-direction rotary mechanism, a Y-direction transmission mechanism and a Z-direction transmission mechanism, wherein the cx-direction rotary motion of the main shaft passes through the Y-axis slide plate 3 The cx servo motor 3-8 in -9 realizes; The Y-direction transmission mechanism has a Y-direction ball screw transmission pair, and one end of the Y-direction ball screw pair 3-19 in the Y-direction ball screw transmission pair is formed by The coupling is connected with the Y-direction servo motor 3-10, and the other end is supported by a bearing fixed on the beam 3-12. The Y-axis slide plate 3-9 is connected with the Y-direction screw nut seat 3 -18 is fixed by screws and can move along the Y guide rail 3-11 fixed on the beam 3-12; the Z-direction transmission mechanism has a Z-direction ball screw transmission pair, and Z in the Z-direction ball screw transmission pair One end of the ball screw pair 3-14 is connected with the Z-direction servo motor 3-13 by a coupling, and the other end is supported by a bearing fixed on the column 3-20. The crossbeam 3-12 is connected with the Z-direction transmission pair The Z-direction lead screw nut seat 3-16 is fixed by screws and can move along the Z-guidance rail 3-17 fixed on the column 3-20, the rear side of the column 3-20 is provided with a balance weight 3-15, and the balance Block 3-15 is used to balance the transmission mechanism of main shaft 2-4.

Please refer to Figure 1 to Figure 3 and combined with Figure 4, in order to facilitate the installation and adjustment of cathodes and workpieces, especially large-sized workpieces, as shown in Figure 2, the designed work box 2-5 can be fixed on the machine bed 2-1 along the The linear slide rail 4-3 moves forward and backward. When the workpiece and the cathode are installed and adjusted, the work box 2-5 is pushed to the top of the machine tool cover 2-6, so that the whole workbench can be exposed, and the operator can be at the front or left and right parts of the machine tool. As shown in Figure 4, the work box sliding device includes a slider 4-2, a linear slide rail 4-3, and a support rod 4-5, wherein a work box support plate is arranged between the work box 2-5 and the slider 4-2 4-1, the three are fixed together by screws, the linear slide rail installation seat 4-4 is arranged between the linear slide rail 4-3 and the support rod 4-5, and the three are also fixed together by screws.

Please refer to Figures 5 to 6, there is a certain gap between the horizontal table 2-2 and the turntable 2-3, because the electrolyte is corrosive, the electrolyte will flow from the horizontal table 2-2 to the turntable during electrolytic machining. The gap between 2-3 penetrates into the X-direction transmission mechanism and the CNC rotary table 3-6, so the workbench protective cover 5-3 is set under the horizontal workbench 2-3, and the operation panel protective cover 5 is set under the turntable 2-3 -1, the X-axis slide shield 5-4 is set above the X-axis slide 3-4, and the electrolyte will flow from the workbench shield 5-3, X Between the shaft slide guard 5-4 and the operating panel guard 5-1, it enters the bed guard 5-5 (as shown by the arrow in Figure 6), and finally flows into the electrolyte circulating filter system 1-3, and passes through the above-mentioned device It can effectively prevent the electrolyte from corroding the CNC rotary table 3-6 and the X-direction transmission mechanism.

Please refer to Figure 7 for a brief introduction to the integrated control system of the large-scale multi-axis linkage electrolytic machining machine tool of the present invention. For specific control methods and methods, please refer to the patent: An integrated control system for numerical control electrolytic machining and its control method (application number: 201210573615.4 ), the integrated control system 1-4 includes a host computer, a feed motion control system, an electrolyte parameter control system, a pulse power supply control system, and a data acquisition and processing system. Among them, the upper computer is used as the control unit to set the motion parameters, electrolyte parameters and power parameters in the electrolytic machining. During the machining, the data fed back by the data acquisition card is used to accurately control each parameter, and at the same time display the processing parameter signals in real time. When the machining process When there is an abnormality in the system, the control systems will stop running and give an alarm. The integrated control system 1-4 sets the priority of the power supply system, electrolyte circulation and filtration system and machine tool motion system according to the technological characteristics of electrolytic machining. When starting processing, work in the order of electrolyte system, power system, and machine tool motion system; when processing ends or processing abnormalities occur in the middle, the shutdown sequence is carried out in the order of machine tool motion system, power system, and electrolyte system, which can avoid accidents caused by operating errors. Economic loss due to tool and cathode rigid contact and short circuit ablation.

Please refer to Figure 8 for a brief introduction to the electrolyte circulation and filtration system of this machine tool. For the specific device and control method, please refer to the patent: An electrolyte circulation and filtration system for electrolytic machining and its control method (application number: 201210393387.2), the output of the electrolytic machining system After the electrolyte is filtered, it is returned to the electrolytic processing system. The electrolyte output by the electrolytic processing system is divided into two loops, wherein the first loop includes a main pump and a two-stage series filter, which according to the integrated control system 1 -4 Set the parameters to adjust the flow and pressure of the electrolyte in the input processing area and purify the electrolyte. The second circuit includes a plate and frame filter press and a flow transmitter to dry out the electrolytic products and impurities in the electrolyte tank and remove them. The electrolyte tank is also provided with an electrolyte parameter control system, which includes a heat exchanger immersed in the electrolyte, a temperature sensor, a concentration sensor, a pH sensor, and a solenoid valve and a pipeline that communicate with the electrolyte. The pH value liquid adjustment tank and the concentration liquid adjustment tank connected to the tanks, the output signals of the temperature sensor, concentration sensor and pH sensor are transmitted to the integrated control system 1-4 through the data acquisition card, and the integrated control system 1-4 is controlled according to the collected signal Heat exchanger, PH value adjustment tank and concentration adjustment tank to adjust the parameters of the electrolyte.

The electrolytic machining power supply is a high-frequency pulse power supply, and the integrated control system 1-4 can set the frequency, pulse width and duty ratio of the electrolytic machining pulse power supply 1-2.

Please refer to Figure 9 to illustrate the implementation process of short-circuit tool setting for electrolytic machine tools. The short-circuit tool setting system consists of a computer, a low-voltage DC tool setting power supply, a data acquisition card, an I/O interface card, a current sensor, and a relay switch (dynamic breaker). . During the tool setting process, the computer controls the movement of the tool cathode relative to the workpiece, and uses the data acquisition card to monitor the current value measured by the current sensor in real time. When the tool cathode and the workpiece are in contact with each other, the value of the current sensor collected by the data acquisition card will change suddenly. At this time, the computer sends a signal to stop the motion system, and the computer records the position data of the electrode at this time, and disconnects the relay, cuts off the power circuit, and then the computer controls the cathode and the workpiece to separate from each other, and returns to the initial position of the tool setting. In order to ensure the accuracy of tool setting, the computer can be used to calculate the average value of the tool for many times. When setting the tool, first ensure that the cathode and the surface of the workpiece are clean.

The above is only a preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements can be made without departing from the principle of the utility model, and these improvements should also be regarded as the present invention. Protection scope of utility model.

Claims (8)

1. A large-scale multi-axis linkage electrolytic machining machine tool, including the machine tool body (1-1), electrolytic machining pulse power supply (1-2), electrolyte circulation and filtration system (1-3) and integrated control system (1-4 ), characterized in that: the machine tool body (1-1) includes a bed (2-1), a horizontal worktable (2-2), a turntable (2-3), a spindle (2-4), a working box ( 2-5) and the machine tool cover (2-6), wherein the horizontal worktable (2-2) is set above the bed (2-1), and realizes X-direction movement through the X-direction transmission mechanism, and the turntable (2-3) Installed in the horizontal workbench (2-2), the turntable (2-3) realizes the ct-direction rotation through the ct-direction rotation mechanism below it; the main shaft (2-4) is installed on the side of the horizontal workbench (2-2), and the main shaft (2-4) Realize cx-direction rotation, Y-direction and Z-direction movement through the transmission mechanism, and the movement in the above five directions realizes five-axis linkage under the control of the integrated control system (1-4); the working box (2- 5) There is a sliding device on the bottom. When installing and adjusting large-sized workpieces and cathodes, the working box (2-5) can be moved to the top of the machine tool cover (2-6) through the sliding device; the horizontal working table (2-2) A protective device is also provided below the turntable (2-3) to isolate the electrolyte from the numerical control turntable (3-6) and the X-direction transmission mechanism. 2. A large-scale multi-axis linkage electrolytic machining machine tool according to claim 1, characterized in that: said X-direction motion is realized by servo motor directly driving a ball screw pair through a shaft coupling, and said ct-direction rotation The mechanism includes ct servo motor (3-2) and CNC rotary table (3-6). The turntable (2-3) is connected with the CNC rotary table (3-6) through a short shaft, and the ct-direction rotary motion is controlled by the ct servo motor (3-6). -2) Drive the worm gear mechanism in the CNC rotary table (3-6) to realize; the movement mechanism of the main shaft (2-4) includes a cx-direction rotary mechanism and a Y-direction transmission arranged on the rear side of the main shaft (2-4) Mechanism and Z-direction transmission mechanism, wherein, the cx-direction rotary motion is realized by the cx servo motor (3-8), and the Y-direction and Z-direction motions are realized by the servo motor directly driving the ball screw pair through the coupling. 3. A large-scale multi-axis linkage electrolytic machining machine tool according to claim 1 or 2, characterized in that the sliding device provided under the working box (2-5) includes a slider (4-2), a linear Slide rails (4-3), support rods (4-5), a work box support plate (4-1) is arranged between the work box (2-5) and the slider (4-2), the work box Box (2-5), slider (4-2) and work box support plate (4-1) are fixed together by screws, between the linear slide rail (4-3) and the support bar (4-5) A linear slide rail mounting seat (4-4) is provided, and the linear slide rail (4-3), the support rod (4-5) and the linear slide rail mounting seat (4-4) are also fixed together by screws. 4. A large-scale multi-axis linkage electrolytic machining machine tool according to claim 1 or 2, characterized in that: the protective device arranged under the horizontal worktable (2-2) and the turntable (2-3) includes The workbench protective cover (5-3) arranged under the horizontal worktable (2-2), the operation panel protective cover (5-1) arranged under the turntable (2-3), the X-axis slide plate (3 -4) The upper X-axis slide guard (5-4), the electrolyte flows into the gap between the turntable (2-3) and the horizontal workbench (2-2) and flows from the workbench guard (5-3), X Between the shaft slide guard (5-4) and the operating panel guard (5-1), it enters into the bed guard (5-5), and finally flows into the electrolyte circulating filter system (1-3). 5. A large-scale multi-axis linkage electrolytic machining machine tool according to claim 1 or 2, characterized in that: the integrated control system (1-4) includes a host computer, a feed motion control system, and an electrolyte parameter control system system, a pulse power supply control system, and a data acquisition and processing system. The upper computer is used as a control unit to set the motion parameters, electrolyte parameters, and power parameters in the electrolytic machining. Accurate control, real-time display of processing parameter signals, when abnormalities occur during processing, the control systems stop running and give an alarm. 6. A large-scale multi-axis linkage electrolytic machining machine tool as claimed in claim 1 or 2, characterized in that: the electrolytic solution output by the electrolytic machining system is filtered and then returned to the electrolytic machining system, and the electrolytic machining system outputs The electrolyte is divided into two loops, the first loop includes a main pump and a two-stage series filter, which adjusts the flow and pressure of the electrolyte entering the processing area according to the parameters set by the integrated control system (1-4) and purifies Electrolyte, the second circuit includes a plate and frame filter press and a flow transmitter, which are used to dry and discharge the electrolytic products and impurities in the electrolyte tank. The electrolyte tank is also equipped with an electrolyte parameter control system. The liquid parameter control system includes a heat exchanger immersed in the electrolyte, a temperature sensor, a concentration sensor, a pH sensor, and a pH value adjustment tank and a concentration adjustment tank connected to the electrolyte tank through solenoid valves and pipelines. The temperature sensor , concentration sensor and PH sensor output signals are transmitted to the integrated control system (1-4) through the data acquisition card, and the integrated control system (1-4) controls the heat exchanger, PH value liquid adjustment tank and concentration liquid adjustment tank according to the collected signals to adjust the parameters of the electrolyte. 7. A large-scale multi-axis linkage electrolytic machining machine tool according to claim 1 or 2, characterized in that: the electrolytic machining pulse power supply (1-2) is a high-frequency pulse power supply, and the integrated control system (1 -4) Set the frequency, pulse width and duty cycle of the electrolytic machining pulse power supply (1-2). 8. A large-scale multi-axis linkage electrolytic machining machine tool as claimed in claim 1 or 2, characterized in that: said large-scale multi-axis linkage electrolytic machining machine tool is also provided with a low-voltage short-circuit tool setting device, and said low-voltage short-circuit The knife device includes a low-voltage DC power supply, the positive and negative electrodes of the low-voltage DC power supply are respectively connected to the workpiece and the cathode through wires, and a relay switch and a current sensor are also arranged between the positive pole of the low-voltage DC power supply and the workpiece.

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