Targeted positioning cleaning electric discharge machine

Abstract

The invention discloses a targeted positioning cleaning electric discharge machine, and relates to the technical field of electric discharge machines, the targeted positioning cleaning electric discharge machine comprises a machine table and a machine head mounted on the machine table, and further comprises a protective cover, the protective cover is movably connected to the bottom of the machine head in a sleeving manner, the protective cover is elastically connected with the machine head, and an annular air bag communicated with an inner cavity of the protective cover is mounted at the top of the protective cover; the high-pressure spray-washing mechanism is installed on the two sides of the protective cover in a penetrating mode, an oil filtering treatment bin and an adjusting assembly which are connected with the high-pressure spray-washing mechanism are installed in the machine table, the adjusting assembly is installed on the inner wall of the protective cover, one end of the adjusting assembly abuts against the machine head in an inclined mode, and the other end of the adjusting assembly is connected with the high-pressure spray-washing mechanism. By arranging the adjusting assembly, automatic and synchronous linkage of the spraying angle of the high-pressure spraying and washing mechanism and the lifting action of the electrode machine head is achieved, the spraying and washing angle can be dynamically changed along with the fact that an electrode goes deep into a workpiece or is lifted out, the key area of the current machining depth is accurately covered, and the dead angle problem of a fixed nozzle is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of spark machines, in particular to an electric discharge machine for targeted positioning and cleaning. Background Art

[0002] Electric discharge machining (EDM) is a special machining method that uses the instantaneous high temperature generated by electric discharge to erode metal materials. It is widely used in the processing of precision and complex parts in mold manufacturing, aerospace and other fields. During the EDM process, a large amount of erosion products are generated in the working fluid. If these erosion products are not promptly and effectively discharged from the machining gap and working area, they will directly affect the machining accuracy and surface quality, and may even cause abnormal electrode wear, short circuit, and arcing, seriously reducing machining efficiency and equipment life.

[0003] The patent announcement number of the existing patent application is: CN210306114U, and the publication date is April 14, 2020. The name of the patent is "A precision metal mirror spark machine". The patent includes a main body, a controller is provided at one end of the main body, a magnetic disk is installed on the upper surface of the main body, a limit plate is installed at the upper end of the main body, side panels are installed at both ends of the limit plate, a back plate is installed on one side of the side plate, a pad is installed on the upper end of the back plate, a first fixed block is installed on the upper end of the pad, a second fixed block is installed at the lower end of one side of the first fixed block, a lower pressure rod is installed at the lower end of the second fixed block, a nozzle is installed at the lower end of the lower pressure rod, and a spark head is installed at the lower end of the nozzle. Through a series of structural designs, the utility model makes the pure water in the device recyclable and can effectively filter out the oxides contained in the water. It can also concentrate the spraying of pure water, so that the rinsing of the oxides is cleaner and the cooling effect is better.

[0004] The above application has its shortcomings. Although the water sprayed through the nozzle can remove the generated impurities, the spraying process can easily cause debris and liquid to splash, polluting the working environment and other parts of the equipment. It is difficult for the spray washing system to dynamically adjust the spray angle according to the electrode position. At the same time, if a cover is directly installed to block the splashing liquid, it is easy to cause waste chips to accumulate and stack inside the cover. Summary of the Invention

[0005] The object of the present invention is to provide an electric discharge machine with targeted positioning cleaning to solve the deficiencies in the above-mentioned prior art.

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

[0007] A targeted cleaning electric discharge machine comprises a machine platform and a machine head mounted on the machine platform, and also comprises a protective cover which is movably sleeved on the bottom of the machine head and elastically connected to the machine head; an annular airbag connected to the inner cavity of the protective cover is mounted on the top of the protective cover; a high-pressure spraying mechanism is installed through both sides of the protective cover; an oil filtering and processing chamber connected to the high-pressure spraying mechanism is installed in the machine platform; an adjusting component is mounted on the inner wall of the protective cover; one end of the adjusting component is tilted against the machine head, and the other end is connected to the high-pressure spraying mechanism; when the machine head is raised or lowered for processing, the annular airbag is squeezed, and the spray angle of the high-pressure spraying mechanism is synchronously adjusted accordingly through the adjusting component.

[0008] Preferably, a main shaft is installed at the bottom of the machine head, the protective cover is movably sleeved on the main shaft, and elastic connectors are symmetrically installed on the top of the protective cover. Wedge-shaped grooves matching the elastic connectors are vertically opened on both sides of the main shaft, and one end of the elastic connector is movably connected to the adjustment component.

[0009] Preferably, the annular airbag is annular in shape, a connecting ring is fixedly connected to the top of the annular airbag, the connecting ring is rotatably connected to the machine head, a plurality of air nozzles distributed in a ring are fixedly connected to the bottom of the annular airbag, and an air guide ring is installed on the top of the inner wall of the protective cover.

[0010] Preferably, a plurality of air holes corresponding to the air nozzles are provided on the top of the protective cover, and dust filters are embedded in the air holes.

[0011] Preferably, the high-pressure spray cleaning mechanism includes a pair of high-pressure connectors inserted through the protective cover, one end of the high-pressure connector is movably installed with an adjustable nozzle in the protective cover, and the other end of the high-pressure connector is connected to the oil filtration processing tank through a liquid suction pump.

[0012] Preferably, the adjustment component includes an arc-shaped lever hinged to the inner wall of the protective cover, the bottom of the elastic connector is fixedly connected to a cross bar, the top of the arc-shaped lever is provided with an arc-shaped groove for the cross bar to move, the top of the adjustment nozzle is fixedly connected to a toggle frame, and the bottom of the arc-shaped lever is installed with a push-pull rod located in the toggle frame.

[0013] Preferably, a buffer washer is installed at the bottom of the protective cover, and drainage grooves are provided on both sides of the buffer washer.

[0014] Preferably, a plurality of reflux holes are distributed in an annular pattern on the protective cover, the reflux holes are located above the drainage trough, and a filter is provided in the reflux holes.

[0015] Preferably, a liquid tank is provided on the machine platform, guide plates are movably installed on both sides of the inner wall of the liquid tank, multiple adsorption capture nets are installed on the inner side of the guide plates, and a liquid inlet connected to the oil filtration processing tank is provided in the liquid tank.

[0016] Preferably, the elastic connector includes a push rod connected to the protective cover, a top spring is installed between one end of the push rod and the protective cover, and the other end is inclined against the wedge-shaped slide groove, and push blocks are installed on both sides of the push rod, and racks that are in contact with the push blocks are vertically fixed on both sides of the inner wall of the wedge-shaped slide groove.

[0017] In the above technical solution, the spray angle of the high-pressure spray mechanism and the lifting and lowering action of the electrode head are automatically and synchronously linked by setting an adjustment component. The spray angle can dynamically change as the electrode penetrates or lifts into the workpiece, accurately covering the key areas of the current processing depth, effectively avoiding the dead angle problem of the fixed nozzle, and significantly improving the cleaning effect of complex surfaces and deep and narrow grooves. At the same time, the lifting and lowering movement of the head itself is used to squeeze the annular airbag to generate airflow, which significantly reduces energy consumption and noise. It not only blows the inner wall of the protective cover, but also blows the lightweight suspended debris in the protective cover into the oil on the machine table. The elastically connected movable protective cover not only covers and protects when not processing, but also moves relative to it when the processing head is raised and lowered, effectively restraining the splashing generated by high-pressure spraying and chip blowing, keeping the working environment clean. The enhanced targeted cleaning capability ensures that the erosion products of the machining gap are quickly and effectively discharged, greatly reducing abnormal electrode loss, short circuit and arcing, and improving the processing quality of the workpiece. Since the machining fluid can help quickly remove slag, the cleaning frequency is reduced, and the processing efficiency is improved.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of an electric discharge machine for targeted positioning and cleaning according to the present invention;

[0022] Figure 2 This is a schematic diagram of the connection between the head and the protective cover of an electric discharge machine for targeted positioning cleaning according to the present invention;

[0023] Figure 3 A schematic diagram of the internal structure of a protective cover in an electric discharge machine for targeted cleaning according to the present invention;

[0024] Figure 4 For the present invention Figure 3 A magnified view of the structure at point A;

[0025] Figure 5 This is a schematic structural diagram of a protective cover and a spindle in an electric discharge machine for targeted positioning and cleaning according to the present invention;

[0026] Figure 6 This is a schematic structural diagram of an adjustment component, an elastic connector, and a high-pressure spray cleaning mechanism in an electric discharge machine for targeted positioning cleaning according to the present invention;

[0027] Figure 7 This is a schematic structural diagram of an elastic connector and a crossbar in an electric discharge machine for targeted positioning and cleaning according to the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of an adjustment component in an electric discharge machine for targeted positioning and cleaning according to the present invention.

[0029] Description of reference numerals:

[0030] 1. Machine; 101. Machine head; 102. Spindle; 103. Wedge-shaped chute; 105. Guide plate; 106. Adsorption capture net; 107. Liquid inlet; 108. Rack; 2. Protective cover; 201. Air guide ring; 202. Air hole; 203. Dust filter; 204. Buffer washer; 205. Drain trough; 206. Return hole; 207. Filter; 208. Connecting spring; 3. Ring shaped airbag; 301, connecting ring; 302, air nozzle; 4, adjustment assembly; 401, arc-shaped lever; 403, arc-shaped groove; 404, push-pull rod; 5, high-pressure spray mechanism; 501, high-pressure connector; 502, adjustment nozzle; 503, liquid pump; 504, toggle rack; 6, oil filter processing chamber; 7, elastic connector; 701, push rod; 702, top spring; 703, push block; 8, cross bar. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0032] See also Figure 1-8An embodiment of the present invention provides an electric discharge machine for targeted cleaning, comprising a machine platform 1 and a machine head 101 mounted on the machine platform 1, and further comprising a protective cover 2, which is movably sleeved on the bottom of the machine head 101, and the protective cover 2 and the machine head 101 are elastically connected, an annular airbag 3 connected to its inner cavity is installed on the top of the protective cover 2, a high-pressure spraying mechanism 5 is installed through both sides of the protective cover 2, an oil filtering and processing tank 6 connected to the high-pressure spraying mechanism 5 is installed in the machine platform 1, and an adjusting component 4 is installed on the inner wall of the protective cover 2, one end of the adjusting component 4 is tilted against the machine head 101, and the other end is connected to the high-pressure spraying mechanism 5, when the machine head 101 is raised and lowered for processing, the annular airbag 3 is squeezed, and the spray angle of the high-pressure spraying mechanism 5 is synchronously adjusted by the adjusting component 4.

[0033] Specifically, the machine 1 carries the entire equipment and has a built-in working fluid circulation and filtration system. The area on the machine 1 for holding the working fluid is equipped with a workpiece fixing seat, and the machine head 101 is located on the workpiece fixing seat. The machine head 101 is installed above the machine 1 through a servo drive mechanism and can move up and down along the Z axis. The electrode can be installed at its end. The protective cover 2 is movably sleeved on the bottom of the machine head 101, and its inner diameter is slightly larger than the outer diameter of the machine head 101, forming a relatively sliding sleeve relationship. The top of the protective cover 2 is connected to the machine head 101 through a connecting spring 208. After the protective cover 2 contacts the workpiece fixing seat, the machine head 101 rises and falls with the processing depth. Under the action of the connecting spring 208, the protective cover 2 always covers the workpiece, covering the processing area to form physical isolation. During processing, the machine head 101 carries the electrode down to the surface of the workpiece for discharge processing, and at the same time squeezes the annular airbag 3, so that the compressed airbag at the bottom of the machine head 101 generates a positive airflow, and the airflow sweeps the inner wall of the protective cover 2 and the electrode surface from the top downward. , light debris is blown into the oil of the machine 1. As the head 101 gradually descends, the adjustment component 4 is pushed to move, and the spray angle of the high-pressure spraying mechanism 5 is dynamically adjusted by the adjustment component 4. When the head 101 descends, that is, when the electrode penetrates into the processing area, the head 101 pushes the adjustment component 4 to adjust the spray angle of the high-pressure nozzle downward to wash deeper or lower areas. When the head 101 is raised, the adjustment component 4 is driven to adjust the nozzle angle upward to wash shallower areas or electrode sidewall areas. The chip blowing airflow removes suspended debris and prevents it from continuing to adhere to the inner wall of the protective cover 2. The high-pressure nozzle then sprays high-pressure oil at a dynamically optimized angle to flush heavy erosion products deposited in the corners of the workpiece, so that the protective cover 2 can not only restrain the splashing of oil and debris to keep the environment clean, but also guide the debris back to the working fluid circulation system. The washed erosion products flow back to the oil filtration and processing chamber 6 in the machine 1 with the working fluid, and are pumped back into the high-pressure spraying mechanism 5 after multiple layers of filtration to form a closed-loop cleaning system.

[0034] Compared with the prior art, the embodiment of the present invention realizes the automatic and synchronous linkage of the spray angle of the high-pressure spray mechanism 5 and the lifting and lowering movement of the electrode head 101 by providing an adjustment component 4. The spray angle can dynamically change as the electrode penetrates or is lifted out of the workpiece, accurately covering the key area of the current processing depth, effectively avoiding the dead angle problem of the fixed nozzle, and significantly improving the cleaning effect of complex surfaces and deep and narrow grooves. At the same time, the lifting and lowering movement of the head 101 itself is used to squeeze the annular airbag 3 to generate airflow, which significantly reduces energy consumption and noise. It not only blows the inner wall of the protective cover 2, but also blows the lightweight suspended debris in the protective cover 2 into the oil on the machine table 1. The elastically connected movable protective cover 2 not only provides coverage and protection when not processing, but also can move relative to it when the processing head 101 is raised and lowered, effectively restraining the splashing generated by high-pressure spraying and chip blowing, keeping the working environment clean. The enhanced targeted cleaning capability ensures that the erosion products of the machining gap are quickly and effectively discharged, greatly reducing abnormal electrode loss, short circuit and arcing, and improving the processing quality of the workpiece. Since the machining fluid can help to quickly discharge slag, the cleaning frequency is reduced, and the processing efficiency is improved.

[0035] In a further embodiment of the present invention, a spindle 102 is installed at the bottom of the machine head 101, and the protective cover 2 is movably sleeved on the spindle 102, and an elastic plug-in 7 is symmetrically installed on the top of the protective cover 2. Wedge-shaped slide grooves 103 that match the elastic plug-in 7 are vertically opened on both sides of the spindle 102. One end of the elastic plug-in 7 is movably connected to the adjustment component 4. Specifically, the spindle 102 is cylindrical and is used to clamp the electrode. The groove depth of the wedge-shaped slide groove 103 gradually changes from shallow to deep. When the protective cover 2 is in a stationary state and the spindle 102 is raised and lowered alone, the spindle 10 During the ascending process, the elastic connector 7 gradually reaches the shallow part of the wedge-shaped slot 103, pushing the elastic connector 7 into the protective cover 2. During the descending process of the spindle 102, the elastic connector 7 gradually reaches the deep part of the wedge-shaped slot 103, and the elastic connector 7 extends under the action of the elastic force. The insertion of the elastic connector 7 into the wedge-shaped slot 103 on the spindle 102 can ensure that the protective cover 2 will not deflect independently during the processing. At the same time, as the spindle 102 descends, the insertion depth of the elastic connector 7 will also increase, further ensuring the stability of the overall structure.

[0036] In a further embodiment of the present invention, the annular airbag 3 is annular, and a connecting ring 301 is fixedly connected to the top of the annular airbag 3, which is rotatably connected to the machine head 101. A number of air nozzles 302 distributed in an annular manner are fixedly connected to the bottom of the annular airbag 3, and an air guide ring 201 is installed on the top of the inner wall of the protective cover 2. Specifically, when the machine head 101 descends, the protective cover 2 first covers the electrospark machining area, and then the reciprocating lifting of the machine head 101 drives the connecting ring 301 to squeeze the annular airbag 3, so that the internal gas of the annular airbag 3 is ejected from the air nozzle 302 at high speed to the inner wall of the protective cover 2, and the ejected high-speed airflow is used to blow off the waste chips attached to the inner wall of the protective cover 2. Another part of the airflow will also blow the suspended debris in the protective cover 2 onto the oil contained in the machine 1 to prevent the waste chips from flying. The air guide ring 201 converts the disordered airflow into an ordered airflow, thereby improving the efficiency of removing debris from the inner wall of the protective cover 2 and achieving enhanced cleaning of key areas.

[0037] In a further embodiment of the present invention, a plurality of air holes 202 corresponding to each air nozzle 302 are opened on the top of the protective cover 2, and a dust filter 203 is embedded in the air hole 202. Specifically, the dust filter 203 adopts an oleophobic microporous membrane, which is embedded in the air hole 202 and locked by a pressure ring. When the annular airbag 3 is in the exhaust stage through multiple air nozzles 302, the deposited debris in the protective cover 2 is cleared. During the intake stage of the annular airbag 3, the gas in the internal area of the protective cover 2 is sucked through the air nozzle 302 to collect and capture suspended particles, so that the suspended waste debris is concentrated. The dust filter 203 prevents these waste debris from entering the annular airbag 3. In this way, when the annular airbag 3 is compressed and exhausted, the concentrated waste debris can be blown into the oil quickly, accurately and efficiently, thereby improving the efficiency of waste debris collection. Every time the air nozzle 302 blows towards the dust filter 203, the high-speed airflow scours the surface of the filter membrane, peels off the dust attached to the wall, and thus prevents blockage.

[0038] In a further embodiment of the present invention, the high-pressure spray cleaning mechanism 5 includes a pair of high-pressure connectors 501 inserted through the protective cover 2, and one end of the high-pressure connector 501 is movably installed with an adjustable nozzle 502 in the protective cover 2 through a universal joint, and the other end of the high-pressure connector 501 is connected to the oil filtering and processing tank 6 through a liquid pump 503. Specifically, the liquid pump 503 is continuously turned on during the processing. When the liquid pump 503 is started, the clean working fluid after circulating filtration is extracted from the oil filtering and processing tank 6 and pumped into the corresponding high-pressure connector 501 in two ways. The adjustable nozzle 502 can achieve multi-angle deflection, thereby ensuring that its spray position is adjustable. When the high-pressure oil flows through the nozzle and is sprayed at high speed toward the processing area of the workpiece, its impact force directly peels off the attached corrosion products. At the same time, its impact flow can accelerate the flow of the working fluid in the processing area, so that the working fluid doped with waste chips can quickly enter the oil filtering and processing tank 6 for filtration treatment, so that the processing fluid can circulate and effectively discharge slag, thereby improving the processing speed.

[0039] In a further embodiment of the present invention, the adjustment component 4 includes an arc-shaped lever 401 hinged on the inner wall of the protective cover 2, the bottom of the elastic connector 7 is fixedly connected to the cross bar 8, the top of the arc-shaped lever 401 is provided with an arc groove 403 for the cross bar 8 to move, the top of the adjusting nozzle 502 is fixedly connected to the toggle frame 504, and the bottom of the arc-shaped lever 401 is installed with a push-pull rod 404 located in the toggle frame 504. Specifically, when the machine head 101 descends to the deep processing position, the elastic connector 7 first presses against the upper half of the wedge-shaped slide 103 under the action of elasticity. As the main shaft 102 descends, the wedge slide 103 squeezes the elastic connector 7, allowing the elastic connector 7 to push the arc-shaped lever 401 with the cross bar 8, so that the arc-shaped lever 401 rotates, allowing the cross bar 8 to move in the arc shaped groove 403 and drives the lever to rotate in one direction around the hinge axis, so that the top of the arc lever 401 is close to the inner wall of the protective cover 2, and the bottom end gradually moves away from the inner wall of the protective cover 2. The push-pull rod 404 at the bottom of the arc lever 401 is used to push the toggle frame 504 to adjust the direction of the adjusting nozzle 502 downward. When the machine head 101 rises and is in the shallow processing position, the elastic connector 7 moves outward and drives the arc lever 401 to rotate through the cross bar 8. Then the toggle frame 504 is pulled to adjust the spray angle of the adjusting nozzle 502 upward, and the linear displacement of the machine head 101 during the discharge machining process is converted into precise angle control of the adjusting nozzle 502. The excessive deviation of the spray angle can be avoided without manual adjustment, thereby realizing automatic dynamic flushing.

[0040] In a further embodiment of the present invention, a buffer gasket 204 is installed at the bottom of the protective cover 2, and drainage grooves 205 are opened on both sides of the buffer gasket 204. Specifically, the buffer gasket 204 is engaged with the bottom of the protective cover 2 through a snap fastener, and the position of the drainage groove 205 is in the same direction as the position of the high-pressure flushing mechanism. The protective cover 2 is driven by the lifting of the machine head 101. The sealing gasket can elastically deform to absorb impact when contacting the machine 1, and can reduce the noise during collision contact. When the sealing gasket is squeezed by the connecting spring 208, it radially expands to compensate for the gap to ensure a better sealed state of the protective cover 2, reduce the splashing of working fluid and waste chips, and at the same time, the working fluid sprayed out at high speed by the adjustment nozzle 502 will be mixed with the washed waste chips and quickly discharged to the corresponding position through the drainage groove 205, so as to facilitate centralized filtering of the working fluid.

[0041] In a further embodiment of the present invention, a plurality of reflux holes 206 are distributed in an annular manner on the protective cover 2. The reflux holes 206 are located above the drainage trough 205, and a filter screen 207 is provided in the reflux holes 206. Specifically, heavy debris is deposited at the bottom. When the working fluid discharged through the drainage trough 205 passes through, the bottom debris will be flushed, prompting it to accelerate into the oil filtration and processing chamber 6. When the high-pressure spray cleaning mechanism 5 is working, there is a local negative pressure in the protective cover 2. The clean oil contained on the machine 1 can pass through the filter screen 207 and flow back into the inner cavity of the protective cover 2 through the reflux holes 206, so that the clean working fluid is replenished in time, so that the working fluid in the processing area of the workpiece is kept clean, thereby improving the processing quality.

[0042] In a further embodiment of the present invention, a liquid tank is provided on the machine 1, and guide plates 105 are movably installed on both sides of the inner wall of the liquid tank, and multiple adsorption and capture nets 106 are installed on the inner side of the guide plates 105. A liquid inlet 107 connected to the oil filtration processing chamber 6 is provided in the liquid tank, and the liquid inlet 107 is located between the two guide plates 105. Specifically, the working fluid discharged from the drainage tank 205 will rush towards the guide plate 105, and the guide plate 105 can guide the working fluid mixed with debris to quickly reach the liquid inlet 107 to be filtered and processed by the oil filtration processing chamber 6. At the same time, when the working fluid flows along the guide plate 105, the multiple adsorption and capture nets 106 can also absorb some waste chips in advance, reducing the filtration burden of the oil filtration processing chamber 6 while also being able to quickly clean up the collected waste chips.

[0043] In a further embodiment of the present invention, the elastic connector 7 includes a push rod 701 plugged into the protective cover 2, a top spring 702 is installed between one end of the push rod 701 and the protective cover 2, and the other end is inclined against the wedge-shaped slide 103, and push blocks 703 are installed on both sides of the push rod 701. Both sides of the inner wall of the wedge-shaped slide 103 are vertically fixedly connected with racks 108 that abut against the push blocks 703. The rack 108 is located in the lower half of the wedge-shaped slide 103. Specifically, since the rack 108 is located in the lower half of the wedge-shaped slide 103, when the protective cover 2 is pressed on the workbench, there is no When the machine head 101 descends alone, during its descent, when the machine head 101 is at a high position, the stop block 703 and the rack 108 contact to achieve high-speed vibration of the protective cover 2, thereby improving the debris removal rate of the inner wall of the protective cover 2 and the discharge machining area. When the machine head 101 continues to descend, the upper half of the wedge-shaped slide 103 contacts the stop block 703, so the protective cover 2 will not vibrate during the deep processing, thereby ensuring its machining accuracy. At the same time, after the machine head 101 is lifted, the protective cover 2 will also vibrate when it descends under the downward pressure of the connecting spring 208, thereby improving the cleaning effect.

[0044] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A targeted cleaning electric discharge machine, comprising a machine platform (1) and a machine head (101) mounted on the machine platform (1), characterized in that: Also includes: A protective cover (2) is movably sleeved on the bottom of the machine head (101), and the protective cover (2) and the machine head (101) are elastically connected. An annular airbag (3) communicating with the inner cavity of the protective cover (2) is installed on the top of the protective cover (2); A high-pressure spray cleaning mechanism (5) is installed through both sides of the protective cover (2); an oil filtering and processing chamber (6) connected to the high-pressure spray cleaning mechanism (5) is installed in the machine (1); An adjusting component (4) is mounted on the inner wall of the protective cover (2), one end of the adjusting component (4) is tilted against the machine head (101), and the other end is connected to the high-pressure spraying mechanism (5); When the machine head (101) is raised and lowered for processing, the annular airbag (3) is squeezed, and the spray angle of the high-pressure spray cleaning mechanism (5) is synchronously adjusted correspondingly through the adjustment component (4).

2. The targeted cleaning electric discharge machine according to claim 1, characterized in that: A main shaft (102) is installed at the bottom of the machine head (101), the protective cover (2) is movably sleeved on the main shaft (102), and an elastic plug-in component (7) is symmetrically installed on the top of the protective cover (2), and wedge-shaped sliding grooves (103) matching the elastic plug-in component (7) are vertically opened on both sides of the main shaft (102), and one end of the elastic plug-in component (7) is movably connected to the adjustment component (4).

3. The targeted cleaning electric discharge machine according to claim 1, characterized in that: The annular airbag (3) is annular in shape, a connecting ring (301) is fixedly connected to the top of the annular airbag (3), the connecting ring (301) is rotatably sleeved with the machine head (101), a plurality of air nozzles (302) distributed in an annular pattern are fixedly connected to the bottom of the annular airbag (3), and an air guide ring (201) is installed on the top of the inner wall of the protective cover (2).

4. The targeted cleaning electric discharge machine according to claim 3, characterized in that: The top of the protective cover (2) is provided with a plurality of air holes (202) corresponding to the air nozzles (302), and dust filters (203) are embedded in the air holes (202).

5. The targeted cleaning electric discharge machine according to claim 1, characterized in that: The high-pressure spray cleaning mechanism (5) comprises a pair of high-pressure connectors (501) inserted through the protective cover (2), one end of the high-pressure connector (501) is movably mounted with an adjustable nozzle (502) in the protective cover (2), and the other end of the high-pressure connector (501) is connected to the oil filtering and processing chamber (6) via a liquid pump (503).

6. The targeted cleaning electric discharge machine according to claim 2, characterized in that: The adjustment assembly (4) includes an arc-shaped lever (401) hinged to the inner wall of the protective cover (2); the bottom of the elastic connector (7) is fixedly connected to a cross bar (8); the top of the arc-shaped lever (401) is provided with an arc-shaped groove (403) for the cross bar (8) to move; the top of the adjustment nozzle (502) is fixedly connected to a toggle frame (504); and the bottom of the arc-shaped lever (401) is provided with a push-pull rod (404) located in the toggle frame (504).

7. The targeted cleaning electric discharge machine according to claim 1, characterized in that: A buffer washer (204) is installed at the bottom of the protective cover (2), and drainage grooves (205) are provided on both sides of the buffer washer (204).

8. The targeted cleaning electric discharge machine according to claim 7, characterized in that: A plurality of reflux holes (206) are distributed in an annular pattern on the protective cover (2). The reflux holes (206) are located above the drainage trough (205), and a filter screen (207) is provided in the reflux holes (206).

9. The targeted cleaning electric discharge machine according to claim 1, characterized in that: A liquid tank (104) is provided on the machine (1), guide plates (105) are movably installed on both sides of the inner wall of the liquid tank (104), a plurality of adsorption capture nets (106) are installed inside the guide plates (105), and a liquid inlet (107) connected to the oil filtration processing chamber (6) is provided in the liquid tank (104).

10. The targeted cleaning electric discharge machine according to claim 2, characterized in that: The elastic connector (7) includes a push rod (701) plugged into the protective cover (2), a top spring (702) is installed between one end of the push rod (701) and the protective cover (2), and the other end is inclined against the wedge-shaped slide (103), and push blocks (703) are installed on both sides of the push rod (701), and racks (108) are vertically fixedly connected to the inner walls of the wedge-shaped slide (103) and are in contact with the push blocks (703).

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