Parallel processing device based on electric arc and electric spark

Abstract

The utility model relates to the technical field of milling processing, in particular to a parallel processing device based on electric arc and electric spark, which comprises a rack, two cutter driving control units are arranged on the left side and the right side of the top of the rack and can adjust positions, and milling processing working units are arranged below the two cutter driving control units. The numerical control unit can control the spatial position and the start-stop state of the tool driving control unit, a power supply unit is further arranged on the machine frame, the power supply unit is electrically connected with the numerical control unit and supplies power to the whole parallel machining device, and the lower portion of the machine frame is fixedly connected with a liquid path circulation system unit and a chip removal processing unit. And the whole machine integrates two functions of electric arc milling and electric spark milling, so that compared with two machines, the space and the cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling processing, in particular to a parallel processing device based on electric arc and electric spark. Background Art

[0002] The traditional milling process uses a high-speed rotating milling cutter to cut on the blank to cut out the required shape and features. With the gradual development of EDM technology, DC motion arc processing technology and electric fusion explosion processing technology have emerged. The DC motion arc processing technology uses a high-power DC regulated power supply, and forms a moving arc with the workpiece through a high-speed rotating tubular electrode to continuously remove the material. The electric fusion explosion processing industry also uses a high-speed rotating tubular electrode for discharge, and uses a high-power pulse power supply for pulse discharge, which can generate instantaneous high temperature and then erode the surface of the workpiece. The two processing methods have different processing accuracy. The arc milling processing has a lower accuracy, but the processing speed is fast, which is suitable for pre-processing of the workpiece, while the electric fusion explosion milling processing has high accuracy and a smoother processing surface. At the same time, the cost of purchasing two machine tools is high and it takes up more space. Therefore, a parallel processing device with a small size and the above two processing methods is needed to reduce costs and reduce space occupied. Utility Model Content

[0003] The purpose of the utility model is to provide a parallel processing device based on electric arc and electric spark to solve the problems raised in the above background technology.

[0004] A parallel processing device based on electric arc and electric spark includes a frame, two tool drive control units are arranged on the left and right sides of the top of the frame, the tool drive control unit is slidably connected to a moving frame, the moving frame is slidably connected to the frame, the tool drive control unit can freely adjust the spatial position through the moving frame, a milling processing working unit is arranged below the two tool drive control units, a numerical control unit is arranged on the frame, the numerical control unit is electrically connected to the tool drive control unit and the moving frame to control the spatial position and start and stop state of the tool drive control unit, a power supply unit is also arranged on the frame, the power supply unit is electrically connected to the numerical control unit to supply power to the entire parallel processing device, and a liquid circulation system unit and a chip removal unit are fixedly connected to the lower part of the frame to provide circulation cooling and waste chip disposal.

[0005] Preferably, the tool drive control unit includes a tool drive motor, the output shaft of the tool drive motor is connected to a hollow spindle through a belt, the bottom end of the hollow spindle is fixedly connected to a tubular electrode, the top end of the hollow spindle is fixedly connected to a conductive slip ring, the top end of the conductive slip ring is slidably connected to a high-speed rotary joint, the drive motor is fixedly connected to a tool module, the tool module is sleeved on the outside of the conductive slip ring, the tool module is fixedly connected to the lower part of the high-speed rotary joint, the tool module is slidably connected to the motion module in a vertical direction, the upper part of the motion module is fixedly connected to a Y-axis drive motor, the Y-axis A Y-axis lead screw is fixedly connected to the lower end of the driving motor, and the motion module is threadedly connected to the Y-axis lead screw so that the tool module can move up and down, and the motion module is slidably connected to the moving frame in the horizontal direction, and two X-axis lead screws are rotatably connected to the moving frame, and the ends of the two X-axis lead screws are fixedly connected to the X-axis driving motor, and the motion module is also threadedly connected to the X-axis lead screw. Both ends of the moving frame are slidably connected to the frame, and one end of the moving frame is threadedly connected to a Z-axis lead screw, and the Z-axis lead screw is rotatably connected to the frame, and the Z-axis lead screw is fixedly connected to a Z-axis driving motor, and the Z-axis driving motor is fixedly connected to the frame.

[0006] Furthermore, the milling processing work unit includes two clamping tables; the clamping table includes a clamping plate, the clamping plate is rotatably connected to a support seat, the support seat is rotatably connected between two support bases, and the support base is slidably connected to the lower part of the frame; a solution tank is fixedly connected to the outer side of a clamping table.

[0007] Furthermore, the chip removal unit includes a material bin, which is fixed to the bottom of the frame. A material collection trough is opened at the bottom of the material bin, and a spiral push rod is rotatably connected in the material collection trough. A waste trough is provided at one end of the spiral push rod. A water tank is provided below the material collection trough, and the water tank is connected to the waste trough.

[0008] Furthermore, the liquid circulation system unit includes a pipeline, which is connected to the water tank, and the other end of the pipeline is connected to the liquid filling pump. The liquid filling pump is fixedly connected to a liquid filling pump frame, which is fixedly connected to the frame through the liquid filling pump frame, and the liquid filling pump is connected to the pressurizer.

[0009] Furthermore, the tool drive control unit is provided with a nozzle, the nozzle is connected with a pressurized pipe, and the pressurized pipe is connected with a liquid filling pump.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with two tool drive control units at the same time, tubular electrodes of different materials are used in the two tool drive control units, and different current forms are used to enable the two tool drive control units to form arc milling and electric melt milling with the workpiece, so that one machine can be used for two purposes, reduce costs, and reduce the occupied space area. The arc drive control unit is provided with a nozzle, which is connected to the liquid circuit circulation system unit, and can use the coolant to quickly remove the molten metal at the processing position of the workpiece and cool the spindle. The chip removal unit at the bottom of the workpiece can separate the liquid and chips, remove the waste chips separately, and allow the coolant to enter the liquid circuit circulation system unit, and the electric melt, that is, the electric spark drive control unit is correspondingly provided with a solution tank, so that the cutting tool can always be immersed in the cutting fluid during the processing process. The two different milling methods can be integrated to exist in one machine at the same time, reducing space occupation, one machine can be used for two purposes, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the overall structure of the frame and the tool drive control unit in the utility model;

[0013] Figure 3 It is a cross-sectional schematic diagram of a tool drive control unit in the utility model;

[0014] Figure 4 It is a top view schematic diagram of the milling working unit in the utility model;

[0015] Figure 5 It is a cross-sectional schematic diagram of the clamping table in the utility model;

[0016] Figure 6 It is a top view of the liquid circulation system unit in the utility model;

[0017] Figure 7 It is a schematic diagram of the cross-sectional structure of the chip removal unit in the utility model.

[0018] In the figure: 1, frame; 2, tool drive control unit; 2a, arc drive control unit; 2b, spark drive control unit; 21, tool drive motor; 22, belt; 23, hollow spindle; 24, tubular electrode; 25, conductive slip ring; 26, high-speed rotary joint; 27, tool module; 28, motion module; 281, Y-axis drive motor; 282, Y-axis lead screw; 3, mobile frame; 31, X-axis drive motor; 32, X-axis lead screw; 33, Z-axis drive motor; 34, Z-axis lead screw; 4, milling processing working unit; 41, installation Clamping table; 42. Clamping plate; 43. Support seat; 44. α degree of freedom motor; 45. β degree of freedom motor; 46. Support base; 47. Adjustment screw; 48. Adjustment motor; 49. Solution tank; 5. CNC unit; 6. Power supply unit; 7. Liquid circulation system unit; 71. Water tank; 72. Pipeline; 73. Filling pump; 731. Filling pump frame; 74. Pressurizer; 75. Nozzle; 8. Chip removal unit; 81. Material bin; 82. Material collection trough; 83. Screw push rod; 84. Waste trough; 91. Observation probe; 92. Camera. DETAILED DESCRIPTION

[0019] The following will be combined with specific embodiments and attached Figure 1-7 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0020] A parallel processing device based on electric arc and electric spark comprises a frame 1, two tool drive control units 2 are arranged on the left and right sides of the top of the frame 1, the two tool drive control units 2 are symmetrically distributed on the frame 1, the tool drive control unit 2 is slidably connected to a moving frame 3, the moving frame 3 is slidably connected to the frame 1, the tool drive control unit 2 cooperates with the moving frame 3 to freely adjust the tool space position, and performs three-dimensional space position adjustment, the tool drive control unit 2 comprises a tool drive motor 21, a belt 22 is sleeved on the output shaft of the tool drive motor 21, and is connected to a hollow spindle 23 through the belt 22, and the bottom end of the hollow spindle 23 is fixedly connected A tubular electrode 24 is connected, a conductive slip ring 25 is fixedly connected to the top of the tubular electrode 24, a high-speed rotary joint 26 is slidably connected to the top of the conductive slip ring 25, and the high-speed rotary joint 26 is used to connect to a power source, the power source is connected to the high-speed rotary joint 26, and the high-speed rotary joint 26 is slidably connected to the conductive slip ring 25, so that the conductive slip ring 25 can slide relatively freely while the high-speed rotary joint 26 can still transmit electricity to the conductive slip ring 25, and the electric energy is finally transmitted to the tubular electrode 24 at the bottom, so that the tubular electrode 24 can interact with the workpiece, and the tool drive motor 21 drives the tubular electrode 24 to rotate at a high speed, and the high-speed rotation of the tubular electrode 24 can improve the milling accuracy.

[0021] A tool module 27 is provided on the outer side of the conductive slip ring 25. The tool module 27 is cylindrical and is fixedly connected to the lower part of the high-speed rotary joint 26. The tool module 27 does not contact the conductive slip ring 25 and its lower part to prevent affecting its operation. The tool drive motor 21 will drive the hollow spindle 23, the tubular electrode 24 and the conductive slip ring 25 to rotate at a high speed. The drive motor is fixedly connected to the tool module 27. The tool module 27 is slidably connected to one side of a motion module 28. The tool module 27 moves vertically. It is connected to one side of the motion module 28 for sliding in the vertical direction. A Y-axis drive motor 281 is fixedly connected to the upper part of the motion module 28. A Y-axis lead screw 282 is coaxially fixedly connected to the output shaft of the Y-axis drive motor 281. The tool module 27 is threadedly connected to the Y-axis lead screw 282. When the Y-axis drive motor 281 rotates, it can drive the Y-axis lead screw 282 to rotate. The rotation of the Y-axis lead screw 282 will push the tool module 27 to slide in the vertical direction, thereby realizing the Y-axis direction adjustment of the tubular electrode 24 on the tool module 27.

[0022] The motion module 28 is slidably connected to the moving frame 3 on the side away from the tool module 27, and is slidably connected in the horizontal direction. An X-axis screw 32 is rotatably connected inside the moving frame 3, and an X-axis drive motor 31 is fixedly connected to the end of the moving frame 3. The output shaft of the X-axis drive motor 31 is coaxially and fixedly connected to the X-axis screw 32, and adopts the same principle as the Y-axis screw 282 and the Y-axis drive motor, so that the X-axis drive motor 31 can drive the motion module 28 to move along the moving frame 3. The same principle is also adopted to slide the two ends of the moving frame 3 on the frame 1 and connect them to a Z-axis screw 34 through threads. The Z-axis screw 34 is rotatably connected to the frame 1 and driven by a Z-axis drive motor 33. In summary, the three drive motors can comprehensively control the three-dimensional movement of the end in the frame 1, which is convenient for freely adjusting the processing position.

[0023] Because there are two tool drive control units 2, each tool control drive unit can be independently controlled to freely adjust the spatial position, and the two ends of the two mobile frames 3 are simultaneously mounted on the two Z-axis lead screws 34, but only one end of the mobile frame 3 is rotatably connected to the Z-axis lead screw 34, and the threaded connection ends of the two mobile frames 3 and the Z-axis lead screw 34 are located on different sides, not on the same side, that is, one end of each mobile frame 3 is threadedly connected to a Z-axis lead screw 34, and the other end thereof is slidably connected to the other Z-axis lead screw 34. The two ends of the mobile frame 3 are simultaneously mounted on the Z-axis lead screw 34, which helps to ensure the accuracy and stability of the mobile frame 3.

[0024] A milling processing working unit 4 is correspondingly provided below the two tool drive control units 2, and the milling processing working unit 4 includes two clamping tables 41, and the two clamping tables 41 are respectively correspondingly arranged below the two tool drive control units 2, and the clamping table 41 includes a clamping plate 42, and a support seat 43 is provided at the lower part of the clamping plate 42, and an α degree of freedom motor 44 is fixedly connected to the support seat 43, and the output shaft of the α degree of freedom motor 44 is transmission-connected to the clamping plate 42, and the α degree of freedom motor 44 can drive the clamping plate 42 to rotate, and adjust the posture of the clamped workpiece on the clamping plate 42, and both ends of the support seat 43 are rotatably connected to a support base 46, and a β degree of freedom motor 45 is fixedly connected to the support base 46, and the β degree of freedom motor 45 is used to realize the rotational connection between the support base and the support seat 43, and the β degree of freedom motor 45 can drive the support seat 43 to rotate, thereby further increasing the adjustment range of the workpiece. The support base 46 is slidably connected to the lower part of the frame 1, and the lower part of the frame 1 is rotatably connected to two adjustment screws 47. The two adjustment screws 47 are driven by two adjustment motors 48, and the adjustment motor 48 is electrically connected to the numerical control unit 5 and controlled by the electrical signal of the numerical control unit 5. One of the two support bases 46 in the same clamping table 41 is threadedly connected to the adjustment screw 47, and the other support base 46 is slidably connected to the other adjustment screw 47. The different sides of the two clamping tables 41 are threadedly connected to different adjustment screws 47, so that the adjustment motor 48 can drive the clamping table 41 to move horizontally. Although the two clamping tables 41 are simultaneously mounted on the two adjustment screws 47, they can only be adjusted by a single adjustment screw 47.

[0025] A numerical control unit 5 is provided on the outer side of the frame 1, and a power supply unit 6 is also provided on the frame 1. The power supply unit 6 is electrically connected to the numerical control unit 5 to supply power to the device. The numerical control unit 5 is a prior art and is a commonly used component in existing numerical control machine tools. The numerical control unit 5 is electrically connected to the above-mentioned X-axis drive motor 31, Y-axis drive motor 281, Z-axis drive motor 33, adjustment motor 48, α degree of freedom motor 44 and β degree of freedom motor 45, and can control the above-mentioned motors to cooperate with each other, adjust the relative distance and position of the clamped workpiece on the clamping plate 42 and the tubular electrode 24, facilitate milling processing, and can enable the numerical control unit 5 to automatically control the above-mentioned motors for processing by pouring the model to obtain the required components. The power supply unit 6 also provides a high-power circuit, the negative pole of the high-power circuit is connected to the rotary joint, and the positive pole is connected to the clamping plate 42. After the high-power circuit is connected, an electric spark or an arc can be formed between the workpiece and the tubular electrode 24. When the input current is a pulse current, and the workpiece and the tubular electrode 24 are immersed in spark oil or deionized water solution at the same time, the tubular electrode 24 can perform an electric spark milling process on the surface of the workpiece. This process is a prior art. When the input power is stabilized direct current, the high-power voltage may break through the air, causing the tubular electrode 24 to form an arc with the workpiece, so that arc milling can be performed.

[0026] Among the two tool drive control units 2, one is the arc tool drive control unit 2, and the other is the electric spark drive control unit 2b. A solution tank 49 is provided outside the clamping plate 42 below the electric spark drive control unit 2b. The solution tank 49 and the clamping plate 42 are fixed together and can be driven to rotate by the β degree of freedom motor 45. The solution tank 49 is used to store electric spark oil or deionized water solution.

[0027] The lower part of the frame 1 is fixedly connected with a liquid circulation system unit 7 and a chip removal unit 8 to provide circulating cooling and waste chip treatment. The chip removal unit 8 includes a silo 81, which is a U-shaped material with a high outside and a low inside. A material collection trough 82 is provided in the center of the silo 81, and a screw push rod 83 is rotatably connected in the material collection trough 82. One end of the screw push rod 83 is rotatably connected to a material collection motor, which can drive the screw push rod 83 to rotate. A waste material trough 84 is provided at the end of the screw push rod 83 along its spiral direction. The rotation of the screw push rod 83 will cause the waste chips in the material collection trough 82 to be collected in the waste material trough 84. A leakage hole is provided at the bottom end of the material collection trough 82. The diameter of the leakage hole is smaller than the diameter of the waste, and only cooling water can flow down from it. The lower end of the leakage hole is connected to a water tank 71 for holding cooling water and storing it for recycling. The liquid circulation system unit 7 includes a pipeline 72, which is connected to the water tank 71. A filling pump 73 is provided at the other end of the pipeline 72. The filling pump 73 is fixedly connected to the frame 1 through the filling pump 73 frame 731. The filling pump 73 is connected to a pressurizer 74 to increase the water pressure. The filling pump 73 is connected to a pressurizing pipeline 72. The pressurizing pipeline 72 is connected from the frame 1 to the arc tool drive control unit 2, and a nozzle 75 is provided at the end of the pressurizing pipeline 72. The nozzle 75 is directly facing the lower end of the tubular electrode 24. An electromagnetic valve is provided on the pressurizing pipeline 72. The electromagnetic valve and the filling pump 73 are electrically connected to the numerical control unit 5. The numerical control unit 5 controls the on and off of the electromagnetic valve to ensure that the molten metal in the arc processing area is efficiently moved out of the discharge gap by the high-pressure water flow.

[0028] An observation probe 91 is provided on the electric spark drive control unit 2b, and a camera 92 is fixedly connected to the frame 1. The camera 92 overlooks the entire interior of the frame 1, and the observation probe 91 faces the solution tank 49. The camera 92 and the observation probe 91 are both electrically connected to the numerical control unit 5. The shooting content of the observation probe 91 and the camera 921 can be viewed on the numerical control unit 5, which is convenient for observing the milling process in the solution tank 49 and making timely adjustments.

[0029] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0030] In the present utility model, "up", "down", "left", "right", "front" and "back" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0031] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A parallel processing device based on electric arc and electric spark, characterized in that: It includes a frame, and two tool drive control units are arranged on the left and right sides of the top of the frame. The tool drive control unit is slidably connected to a moving frame, and the moving frame is slidably connected to the frame. The tool drive control unit can freely adjust the spatial position through the moving frame. A milling processing working unit is arranged below the two tool drive control units. A numerical control unit is arranged on the frame, and the numerical control unit is electrically connected to the tool drive control unit and the moving frame to control the spatial position and start and stop state of the tool drive control unit. A power supply unit is also arranged on the frame, and the power supply unit is electrically connected to the numerical control unit to supply power to the entire parallel processing device. A liquid circulation system unit and a chip removal unit are fixedly connected to the lower part of the frame to provide circulating cooling and waste chip disposal.

2. The parallel processing device based on electric arc and electric spark according to claim 1, characterized in that: The tool drive control unit includes a tool drive motor, the output shaft of the tool drive motor is connected to a hollow spindle through a belt, the bottom end of the hollow spindle is fixedly connected to a tubular electrode, the top end of the hollow spindle is fixedly connected to a conductive slip ring, the top end of the conductive slip ring is slidably connected to a high-speed rotary joint, the drive motor is fixedly connected to a tool module, the tool module is sleeved on the outside of the conductive slip ring, the tool module is fixedly connected to the lower part of the high-speed rotary joint, the tool module is slidably connected to the motion module in the vertical direction, the upper part of the motion module is fixedly connected to a Y-axis drive motor, the Y-axis drive A Y-axis lead screw is fixedly connected to the lower end of the motor, and the motion module is threadedly connected to the Y-axis lead screw so that the tool module can move up and down, and the motion module is slidably connected to the mobile frame in the horizontal direction, and two X-axis lead screws are rotatably connected to the mobile frame, and the ends of the two X-axis lead screws are fixedly connected to the X-axis drive motor, and the motion module is also threadedly connected to the X-axis lead screw. Both ends of the mobile frame are slidably connected to the frame, and one end of the mobile frame is threadedly connected to a Z-axis lead screw, and the Z-axis lead screw is rotatably connected to the frame, and the Z-axis lead screw is fixedly connected to a Z-axis drive motor, and the Z-axis drive motor is fixedly connected to the frame.

3. The parallel processing device based on electric arc and electric spark according to claim 2, characterized in that: The milling processing work unit includes two clamping tables; the clamping table includes a clamping plate, the clamping plate is rotatably connected to a support seat, the support seat is rotatably connected between two support bases, and the support base is slidably connected to the lower part of the frame; a solution tank is fixedly connected to the outer side of a clamping table.

4. The parallel processing device based on electric arc and electric spark according to claim 3, characterized in that: The chip removal unit includes a material bin, which is fixed to the bottom of the frame. A material collection trough is opened at the bottom of the material bin. A spiral push rod is rotatably connected in the material collection trough. A waste trough is arranged at one end of the spiral push rod. A water tank is arranged below the material collection trough, and the water tank is connected to the waste trough.

5. The parallel processing device based on electric arc and electric spark according to claim 4, characterized in that: The liquid circulation system unit includes a pipeline, which is connected to the water tank. The other end of the pipeline is connected to a liquid filling pump. A liquid filling pump frame is fixedly connected to the liquid filling pump and is fixedly connected to the frame through the liquid filling pump frame. The liquid filling pump is connected to a pressurizer.

6. The parallel processing device based on electric arc and electric spark according to claim 5, characterized in that: The tool drive control unit is provided with a nozzle, the nozzle is connected with a pressurized pipeline, and the pressurized pipeline is connected with a liquid filling pump.

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