CN112496477B - Electric spark machine with smoke abatement function - Google Patents

Abstract

The application relates to the field of electric spark machines, in particular to an electric spark machine with a smoke removal function, and solves the problem that smoke generated by the electric spark machine during machining can harm the health of workers. The oil tank is arranged on one side of the machine body, and a circulating filter is arranged in the oil tank and communicated with the oil tank. The machine head is sleeved with a smoke-proof hood, an annular groove and an overflow groove are respectively arranged in the smoke-proof hood around the axis of the machine head, the top of the annular groove is communicated with the top of the overflow groove, the bottom of the overflow groove runs through the bottom of the smoke-proof hood, a circulating assembly is communicated between the bottom of the annular groove and a circulating filter, and an air suction assembly is communicated with the top of the smoke-proof hood. This application can seal the processing region of work piece to avoid smog loss and produce the harm to staff's healthy.

Description

Electric spark machine with smoke abatement function

Technical Field

The application relates to the field of electric spark machines, in particular to an electric spark machine with a smoke removing function.

Background

The electric spark machine is a common machining device in the industrial machining process, is mainly used for electric spark machining, is widely applied to the manufacture of various metal molds and mechanical devices, and is particularly suitable for machining molds and parts with holes and cavities with complex shapes.

The electric spark machine is a special processing method for corroding and removing conductive materials by utilizing the action of electric corrosion generated during pulse discharge between two electrodes immersed in working liquid, also called as electric discharge processing or electric corrosion processing, a large amount of heat energy is instantaneously concentrated in a discharge micro-channel, the temperature can reach more than 10000 ℃, and the pressure also has a sharp change, so that a local trace metal material on the working surface of the point is immediately melted and gasified, and is explosively splashed into working oil to be rapidly condensed to form solid metal particles which are taken away by the working oil, and a tiny pit mark is left on the surface of a workpiece. The working fluid is used as a discharge medium, plays roles of cooling, chip removal and the like in the processing process, and is usually working oil with lower viscosity, higher flash point and stable performance, such as kerosene.

The common electric spark mainly comprises a machine body, an oil groove formed in the machine body and a machine head arranged on the machine body, wherein an electrode tip used for machining a workpiece is installed on the machine head, and working oil is filled in the oil groove. The machine body is also provided with an oil tank with a circulating filter inside, and the oil tank and the working oil in the oil tank are continuously circulated and filtered through the circulating filter.

However, in the processing process, because the surface of the workpiece is overhigh in temperature instantly, part of gasified metal is diffused in a smoke state, and a small amount of working oil is volatilized in the processing process, so that more smoke is generated, the smoke is toxic and harmful, and the skin and the nervous system of workers can be stimulated by long-term contact.

Disclosure of Invention

In order to improve the smog that the electric spark machine produced when processing the work piece and can be to endangering the healthy problem of staff, this application provides an electric spark machine with smoke abatement function.

The electric spark machine with the smoke abatement function adopts the following technical scheme:

the utility model provides an electric spark machine with smoke abatement function, include the organism, set up in aircraft nose on the organism, set up in the oil groove of aircraft nose below and set up in the oil tank of organism one side, be provided with circulating filter in the oil tank, circulating filter with the oil groove is linked together, be provided with the smoke protection hood on the aircraft nose, the top of smoke protection hood is equipped with the installing port, the aircraft nose is worn to locate in the installing port, wind in the smoke protection hood the axis of aircraft nose is equipped with annular and overflow launder respectively, the overflow launder is located the inboard of annular, the top of annular with the top intercommunication of overflow launder, the bottom of overflow launder runs through in the bottom of smoke protection hood, the bottom of annular with the intercommunication has the circulation subassembly between the circulating filter, the top intercommunication of smoke protection hood has the subassembly that induced drafts, the subassembly including communicate in the inboard aspiration channel of smoke protection hood, The air suction hose is communicated with the air suction pipe, the air suction hose is communicated with a fan which is far away from one end of the air suction pipe, and the tail gas pipe is communicated with the fan.

By adopting the technical scheme, in the processing process, the working oil in the oil tank and the oil groove continuously circulates through the circulating filter, the working oil can enter the annular groove through the circulating filter, then the annular groove is gradually fully stored by the working oil and flows into the overflow groove, the working oil flows out of the overflow groove to form a complete annular oil curtain, and the oil curtain is matched with the smoke-proof cover to seal the processing area of the workpiece, so that the smoke generated in the processing process of the workpiece is blocked, the smoke is prevented from escaping to pollute the working environment, and the harm to the health of workers is prevented; in addition, the suction force of the fan can also suck the generated smoke into the suction pipe, and the smoke is discharged from a production workshop through the suction hose and the tail gas pipe, so that the possibility of smoke escape is reduced, and the working environment and the physical health of workers are protected.

Optionally, the circulation assembly comprises a circulation pipe communicated with the circulation filter and a circulation hose communicated with one end of the circulation pipe far away from the circulation filter, and one end of the circulation hose far away from the circulation pipe is communicated with the bottom of the ring groove.

Through adopting above-mentioned technical scheme, the circulation hose can be in the course of working the head at random and buckle the removal, because the circulation hose communicates in the bottom of annular to guaranteed that can hold the annular earlier fully after the working oil gets into the annular, formed complete oil curtain when making the working oil flow into the overflow launder, reduced the possibility of smog loss.

Optionally, the aspiration channel with the intercommunication has the cooling tube between the smoke protection cover, the vertical intercommunication of cooling tube in the top of smoke protection cover just the bottom of cooling tube extends to the inboard of smoke protection cover, the aspiration channel communicate in the top of cooling tube, the inside cavity that is equipped with of pipe wall of cooling tube, the lower part intercommunication of cavity has into oil pipe, the upper portion intercommunication of cavity has out oil pipe, advance oil pipe communicate in the circulating pipe, go out oil pipe communicate in the oil groove.

Through adopting above-mentioned technical scheme, part working oil can be followed into oil pipe entering cavity and flow into the oil groove from going out oil pipe and form the circulation in the course of working, and smog can cool off through the working oil in the cavity at the in-process that gets into the aspiration channel through the cooling tube to make gasified working oil condense and get off and flow back to in the oil groove in the smog, reduced the loss of working oil, save the cost, and also reduced the processing degree of difficulty of tail gas pipe exhaust tail gas.

Optionally, the cooling pipe is spirally arranged from bottom to top.

Through adopting above-mentioned technical scheme, the cooling tube spiral sets up can increase the dwell time of smog in the cooling tube to improved the condensation effect to smog, made the easier condensation of gasified working oil get off, the loss of the working oil that has significantly reduced, and spiral helicine cooling tube also can fully contact with the working oil that the condensation got off, be favorable to making in the working oil backward flow to the oil groove, reduced the loss that the working oil that the condensation got off produced under the adsorption of fan wind-force.

Optionally, filter cotton is arranged in the air suction pipe.

Through adopting above-mentioned technical scheme, the filter pulp can filter the metal particle in the smog, prevents that the metal particle in the smog from discharging together with tail gas and increase the treatment cost of tail gas.

Optionally, the filter cotton is internally provided with a magnetic sheet.

Through adopting above-mentioned technical scheme, the setting up of magnetic sheet can adsorb the metal particle in the smog, has improved the filter effect to metal particle in the smog to also can reduce the metal particle that falls into in the oil groove, thereby reduced the remaining of metal particle in the oil groove, be favorable to the circulation of working oil.

Optionally, the filter pulp and wear to be equipped with the montant along vertical direction on the magnet, the bottom level of montant is provided with the bearing rod, be equipped with the spout along vertical direction on the inner wall of aspiration channel, the both ends of bearing rod are slided and are inlayed and locate in the spout, the aspiration channel with the connection can be dismantled to the hose that induced drafts.

Through adopting above-mentioned technical scheme, the montant set up the convenience and carry out the dismouting to filtering the cotton to in regular time changing filtering the cotton, guarantee to the filter effect of smog, the bearing pole is used for supporting filtering the cotton, and the spout is used for fixing a position bearing pole, makes the bearing pole keep fixed in the bottom of spout with the both ends butt of bearing pole during the installation.

Optionally, the side wall of the smoke-proof hood is provided with a through hole.

Through adopting above-mentioned technical scheme, the setting of through-hole can play certain balanced effect to the pressure in the inboard and the outside of smoke protection cover to the absorption of smog is convenient for.

Optionally, an arc-shaped guide plate is arranged at the notch of the overflow groove.

Through adopting above-mentioned technical scheme, the arc guide board can play buffering and guide effect to the working oil that arrives the overflow launder bottom, is favorable to making the oil curtain that the working oil formed the completion to the effect of blockking to smog has been improved.

Optionally, the smoke-proof hood is made of transparent materials.

Through adopting above-mentioned technical scheme, the convenient processing situation of observing of smoke protection cover adoption transparent material to in real time master the processing condition.

In summary, the present application includes at least one of the following beneficial technical effects:

working oil enters the annular groove through the circulating filter in the circulating process, then the working oil gradually fully accumulates the annular groove and flows into the overflow groove, the working oil flows out of the overflow groove to form a complete annular oil curtain, the oil curtain is matched with the smoke-proof cover to seal a processing area of a workpiece, so that smoke generated in the processing process of the workpiece is blocked, the smoke is prevented from escaping to pollute the working environment, harm to the health of workers is prevented, the generated smoke is sucked into the suction pipe by the suction force of the fan, and the smoke is discharged from a production workshop through the suction hose and the tail gas pipe, so that the possibility of smoke escaping is reduced, and the working environment and the health of the workers are protected;

the cooling pipe can cool the smoke in the process that the smoke enters the air suction pipe through the cooling pipe, so that the gasified working oil in the smoke is condensed and flows back to the oil groove, the loss of the working oil is reduced, the cost is saved, and the treatment difficulty of tail gas discharged by the tail gas pipe is also reduced;

due to the arrangement of the filter cotton, metal particles in the smoke can be filtered, and the metal particles in the smoke and the tail gas are prevented from being discharged together to increase the treatment cost of the tail gas;

the setting of magnetic sheet can adsorb the metal particle in the smog, has improved the filter effect to metal particle in the smog to also can reduce the metal particle that falls into in the oil groove, thereby reduced the remaining of metal particle in the oil groove, be favorable to the circulation of working oil.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a smoke protection cover according to an embodiment of the present application.

FIG. 3 is a schematic cross-sectional view of a smoke mask in accordance with an embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Fig. 5 is an enlarged schematic view of a portion B in fig. 3.

Fig. 6 is a schematic cross-sectional view of an air suction pipe according to an embodiment of the present application.

Description of reference numerals: 1. a body; 11. a machine head; 12. an oil sump; 2. an oil tank; 21. a circulating filter; 3. a smoke-proof hood; 31. an installation port; 32. a ring groove; 33. an overflow trough; 331. an arc-shaped guide plate; 34. a through hole; 41. a circulation pipe; 42. a circulation hose; 51. an air suction pipe; 511. a chute; 52. a suction hose; 53. a fan; 54. a tail gas pipe; 6. a cooling tube; 61. a cavity; 62. an oil inlet pipe; 63. an oil outlet pipe; 7. filtering cotton; 71. a magnetic sheet; 81. a vertical rod; 82. a support rod.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses an electric spark machine with smoke abatement function. Referring to fig. 1, the electric discharge machine having a smoke removing function includes a machine body 1, a head 11 fixedly installed on the machine body 1, an oil tank 12 installed on the machine body 1, and an oil tank 2 installed at one side of the machine body 1, wherein the head 11 is located above the oil tank 12, and a circulation filter 21 for circulating working oil is installed in the oil tank 2.

Referring to fig. 1 and 2, a smoke-proof hood 3 is mounted on a machine head 11, the bottom of the smoke-proof hood 3 is open, a mounting hole 31 is formed in the top of the smoke-proof hood 3, and the machine head 11 is arranged in the mounting hole 31 in a penetrating manner and fixedly connected with the smoke-proof hood 3 through a bolt.

Referring to fig. 3 and 4, the lower part of the smoke prevention cover 3 is respectively provided with a ring groove 32 and an overflow groove 33 around the axis of the machine head 11, the overflow groove 33 is positioned inside the ring groove 32, the bottom end of the ring groove 32 is closed, the top of the ring groove 32 is communicated with the top of the overflow groove 33, and the bottom of the overflow groove 33 penetrates through the bottom of the smoke prevention cover 3.

Referring to fig. 1, a circulation assembly is communicated between the circular groove 32 and the circulation filter 21, the circulation assembly comprises a circulation pipe 41 communicated with the circulation filter 21 and a circulation hose 42 communicated with one end of the circulation pipe 41 far away from the circulation filter 21, one end of the circulation hose 42 far away from the circulation pipe 41 is communicated with the bottom of the circular groove 32, and the flexibility of the circulation hose 42 facilitates moving along with the head 11 during the processing.

In the course of working, the working oil can get into annular groove 32 through circulating filter 21, because circulation hose 42 communicates in the bottom of annular groove 32, consequently, the working oil can hold annular groove 32 with earlier after getting into annular groove 32 and flow into in the overflow launder 33 again, can form complete annular oil curtain when the working oil flows out in the overflow launder 33, the oil curtain cooperatees with smoke protection cover 3 and seals the machining region of work piece, thereby block the smog that produces in the work piece course of working, avoid smog loss and pollution operational environment, prevent to produce harm to staff's healthy.

Referring to fig. 4, an arc guide plate 331 is connected to one side of the notch of the overflow groove 33 close to the ring groove 32, and the arc guide plate 331 is gradually inclined downward in a direction away from the ring groove 32. When the working oil flows onto the arc guide plate 331, the arc guide plate 331 can buffer and guide the working oil, which is beneficial to forming the oil curtain of the working oil, thereby improving the blocking effect on the smoke.

Referring to fig. 1 and 2, the top of the smoke protection cover 3 is communicated with an air suction assembly, and the air suction assembly includes an air suction pipe 51 communicated with the inner side of the smoke protection cover 3, an air suction hose 52 communicated with one end of the air suction pipe 51 far away from the smoke protection cover 3, a fan 53 communicated with one end of the air suction hose 52 far away from the air suction pipe 51, and an exhaust pipe 54 communicated with the fan 53. During processing, the suction force generated by the fan 53 can suck the generated smoke into the suction pipe 51, and the smoke is discharged from a production workshop through the suction hose 52 and the tail gas pipe 54, so that the possibility of smoke escape is reduced, the working environment and the physical health of workers are protected, and the tail gas pipe 54 can be communicated with a tail gas treatment system of the production workshop for subsequent treatment.

Referring to fig. 2, a through hole 34 is formed in the side wall of the smoke prevention cover 3 for balancing the pressure inside and outside the smoke prevention cover 3 to facilitate the absorption of smoke.

Still communicate between aspiration channel 51 and the smoke protection cover 3 has cooling tube 6, and cooling tube 6 is vertical to be communicated in the top of smoke protection cover 3 and the bottom of cooling tube 6 extends to the inboard of smoke protection cover 3, and aspiration channel 51 is vertical to be communicated in the top of cooling tube 6.

Referring to fig. 3 and 5, a cavity 61 is formed inside the tube wall of the cooling tube 6, the cavity 61 extends from the lower portion of the cooling tube 6 to the upper portion of the cooling tube 6, the lower portion of the cavity 61 is communicated with an oil inlet tube 62, one end of the oil inlet tube 62, which is far away from the cooling tube 6, is communicated with the circulation tube 41, the upper portion of the cavity 61 is communicated with an oil outlet tube 63, one end of the oil outlet tube 63, which is far away from the cooling tube 6, is communicated with the oil tank 12, and part of the working oil enters the cavity 61 from the oil inlet tube 62 and flows into the oil tank 12 from the oil outlet tube 63 to form a circulation during the machining process. When the smoke passes through the cooling pipe 6, the working oil in the cavity 61 cools the smoke, so that the gasified working oil in the smoke is condensed and flows back to the oil groove 12, the loss of the working oil is reduced, the cost is saved, and the difficulty in subsequent treatment of the tail gas discharged from the tail gas pipe 54 is also reduced.

In order to improve the condensation effect on the smoke, the cooling pipe 6 is spirally arranged from bottom to top, so that the retention time of the smoke in the cooling pipe 6 is increased, the gasified working oil is easier to condense, and the loss of the working oil is greatly reduced. And the spiral cooling pipe 6 can be fully contacted with the condensed working oil, so that the working oil can flow back to the oil groove 12, and the loss of the condensed working oil under the adsorption action of the wind power of the fan 53 is reduced.

Referring to fig. 6, the filter cotton 7 is horizontally installed in the air suction pipe 51 for filtering the metal particles in the smoke, so as to prevent the metal particles in the smoke from being discharged together with the exhaust gas, thereby increasing the cost of treating the exhaust gas.

The inside parcel of filter pulp 7 has magnetic sheet 71 in order to be used for adsorbing the metal particle in the smog to improved the filter effect to the metal particle in smog, and also can reduce the metal particle that falls into in oil groove 12, reduce the remaining of metal particle in oil groove 12, be favorable to the circulation of working oil.

In this embodiment, the air suction pipe 51 and the air suction hose 52 are detachably connected by a clip. The vertical rods 81 penetrate through the middle parts of the filter cotton 7 and the magnetic sheets 71 in a sliding mode along the vertical direction, the bottom ends of the vertical rods 81 are horizontally connected with the supporting rods 82, the vertical rods 81 and the supporting rods 82 are integrated, and the bottom ends of the vertical rods 81 are connected to the middle parts of the supporting rods 82. Two sliding grooves 511 are formed in the inner wall of the air suction pipe 51 in the vertical direction, the two sliding grooves 511 are symmetrically distributed around the axis of the air suction pipe 51, two ends of the bearing rod 82 are embedded into the sliding grooves 511 in a sliding mode, and the two ends of the bearing rod 82 abut against the bottom end of the sliding grooves 511 to enable the bearing rod 82 to be kept fixed during installation. When the filter cotton 7 needs to be replaced, the air suction pipe 51 and the air suction hose 52 are disassembled, and the vertical rod 81 is pulled to pull the filter cotton 7 out of the air suction pipe 51.

In this embodiment, the smoke protection cover 3 is made of transparent PMMA, so that the processing condition can be observed conveniently, and the processing condition can be grasped in real time.

The implementation principle of the electric spark machine with the smoke removing function in the embodiment of the application is as follows: in the course of working, the working oil can get into annular groove 32 through circulating filter 21 and hold annular groove 32 earlier and be full, the annular groove 32 holds in the back working oil can flow into overflow launder 33 after full, can form complete annular oil curtain when working oil flows out from overflow launder 33, the oil curtain seals with the machining area of smoke protection hood 3 cooperation to the work piece, thereby stop the smog that produces in the work piece course of working, avoid smog loss and polluted working environment, prevent to produce harm to staff's the healthy. In addition, in the course of working, the fan 53 also can adsorb the smog that the processing produced, and smog is discharged through exhaust pipe 54 to reduced the possibility that smog is dissipated, be favorable to protecting operational environment and staff's healthy, exhaust pipe 54 can communicate carries out subsequent processing in the exhaust gas processing system of workshop to tail gas, avoids causing the pollution to the atmosphere.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an electric spark machine with smoke abatement function, include organism (1), set up in aircraft nose (11) on organism (1), set up in oil groove (12) of aircraft nose (11) below and set up in oil tank (2) of organism (1) one side, be provided with circulating filter (21) in oil tank (2), circulating filter (21) with oil groove (12) are linked together, its characterized in that: be provided with on aircraft nose (11) and prevent petticoat pipe (3), the top of preventing petticoat pipe (3) is equipped with installing port (31), aircraft nose (11) are worn to locate in installing port (31), wind in preventing petticoat pipe (3) the axis of aircraft nose (11) is equipped with annular (32) and overflow launder (33) respectively, overflow launder (33) are located the relative inboard of annular (32), the top of annular (32) with the top intercommunication of overflow launder (33), the bottom of overflow launder (33) run through in the bottom of preventing petticoat pipe (3), the bottom of annular (32) with the intercommunication has the circulation subassembly between circulating filter (21), the top intercommunication of preventing petticoat pipe (3) has the subassembly that induced drafts, induced draft the subassembly including communicate in prevent inside aspiration channel (51) of petticoat pipe (3), communicate in induced draft hose (52) of aspiration channel (51), A fan (53) communicated with one end of the suction hose (52) far away from the suction pipe (51) and an exhaust pipe (54) communicated with the fan (53);

the circulation assembly comprises a circulation pipe (41) communicated with the circulation filter (21) and a circulation hose (42) communicated with one end of the circulation pipe (41) far away from the circulation filter (21), and one end of the circulation hose (42) far away from the circulation pipe (41) is communicated with the bottom of the annular groove (32);

in the processing process, working oil enters the annular groove (32) through the circulating filter (21) and is fully accumulated in the annular groove (32), the working oil flows into the overflow groove (33) after the annular groove (32) is fully accumulated, and a complete annular oil curtain is formed when the working oil flows out of the overflow groove (33);

the cooling pipe (6) is communicated between the air suction pipe (51) and the smoke-proof hood (3), the cooling pipe (6) is vertically communicated with the top of the smoke-proof hood (3) and the bottom end of the cooling pipe (6) extends to the inner side of the smoke-proof hood (3), the air suction pipe (51) is communicated with the top end of the cooling pipe (6), a cavity (61) is arranged inside the pipe wall of the cooling pipe (6), the lower part of the cavity (61) is communicated with an oil inlet pipe (62), the upper part of the cavity (61) is communicated with an oil outlet pipe (63), the oil inlet pipe (62) is communicated with the circulating pipe (41), and the oil outlet pipe (63) is communicated with the circulating hose (42) to be communicated with the oil groove (12);

during the processing, part of the working oil enters the cavity (61) from the oil inlet pipe (62) and flows into the oil tank (12) from the oil outlet pipe (63) to form circulation, and when smoke passes through the cooling pipe (6), the working oil in the cavity (61) cools the smoke, so that the gasified working oil in the smoke is condensed and flows back to the oil tank (12).

2. The electric discharge machine according to claim 1, characterized in that: the cooling pipe (6) is spirally arranged from bottom to top.

3. The electric discharge machine according to claim 1, characterized in that: and filter cotton (7) is arranged in the air suction pipe (51) and is used for filtering metal particles in the smoke.

4. The electric discharge machine according to claim 3, characterized in that: the magnetic sheet (71) is arranged inside the filter cotton (7) and used for adsorbing metal particles in smoke and reducing the metal particles falling into the oil groove (12).

5. Electric discharge machine according to claim 4, characterized in that: cross filter pulp (7) and vertical pole (81) are worn to be equipped with along vertical direction on magnetic sheet (71), the bottom level of vertical pole (81) is provided with bearing rod (82), be equipped with spout (511) along vertical direction on the inner wall of aspiration channel (51), the both ends slip of bearing rod (82) are inlayed and are located in spout (511), aspiration channel (51) with the connection can be dismantled in induced draft hose (52).

6. The electric discharge machine according to claim 1, characterized in that: be equipped with through-hole (34) on the lateral wall of smoke protection cover (3) for carry out pressure balance to smoke protection cover (3) inboard and outside.

7. The electric discharge machine according to claim 1, characterized in that: notch department of overflow launder (33) is provided with arc guide board (331), and arc guide board (331) are along keeping away from the direction downward sloping setting gradually of annular (32), and when the working oil flowed to arc guide board (331), arc guide board (331) can play buffering and guide effect to the working oil, are favorable to making the oil curtain that the working oil formed the completion.

8. The electric discharge machine according to claim 1, characterized in that: the smoke-proof hood (3) is made of transparent materials.

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