Cooling oil filtering device of electric discharge machine

Abstract

The invention relates to the field of cooling oil filtering, in particular to a cooling oil filtering device of an electric discharge machine, solves the problems that an existing cooling oil filtering device of the electric discharge machine is inconvenient to clean, single in use and high in use cost, and provides the following scheme. The device comprises an upper barrel, a lower barrel, a motor bin, a chuck, a filter element, a telescopic piece, a circular ring disc, a first circular ring, a guide plate, a scraper and a cleaning brush, a traction assembly is arranged on the circular ring disc, an unfolding assembly is arranged between a vertical plate and the guide plate, a driving assembly is further arranged in the upper barrel and used for driving the first circular ring to rotate, and the lower barrel is provided with a driving assembly. The scraping plate is driven to clean the inner wall of the upper barrel and the cleaning brush is driven to clean the outer side surface of the filter element. The device can be used independently and can also be used in combination with an electric discharge machine, functionality is increased, oil can be fed from multiple pipe openings, the cooling oil filtering efficiency is greatly improved, self-cleaning can be achieved, the cleaning effect is good, and the use cost is low.

Description

Technical Field

[0001] The invention relates to the field of cooling oil filtration, in particular to a cooling oil filtration device for an electric spark machine. Background Art

[0002] EDM cooling oil is specifically designed for EDM machining. Its excellent insulating properties ensure that the discharge occurs only between the electrode and the workpiece, preventing short circuits and other abnormalities. EDM oil also has a high flash point, ensuring safety. Its chemical stability makes it less susceptible to decomposition and deterioration, resulting in a relatively long service life. During use, the cooling oil can contaminate impurities such as erosion debris, necessitating regular filtration. Specialized filtering equipment can be used to remove these solid impurities to maintain the cooling oil's optimal performance.

[0003] Currently, the cooling oil of an EDM machine can be filtered by directly installing a circulating filter device on the EDM machine, or by using an external device to collect the cooling oil and then filter it. However, no matter which filtering method is used, the filtering device used can only be used in a single corresponding manner, and cannot be flexibly selected for external use or installed on the EDM machine for combined use. At the same time, the existing filtering device needs to regularly clean the inner wall and replace the filter element after long-term filtering use. This is because the existing centrifugal cooling oil filtering device will centrifugally throw large debris to the inner wall of the filtering device during filtering, and a large amount of small debris will also adhere to the surface of the filter element in the center. Over time, this will reduce the effect and efficiency of centrifugal filtration. The existing cleaning and replacement methods usually require disassembly, which is cumbersome to operate, and frequent replacement of the filter element will increase costs.

[0004] The Chinese patent application number CN201921787637.4 discloses "a multi-layer cooling filter device for oil of an electric spark machine tool. Through the provided operating rack, disc and limit shaft, when installing or removing the filter plate, the user moves the operating rack up or down to drive the gear to rotate. Because the gear and the disc are coaxially arranged, the disc and the gear rotate synchronously, causing the limit shaft to move the transverse clamping shaft outward or inward to achieve the purpose of installing or removing the filter plate, changing the defect that the spring is prone to fatigue reaction during long-term use, weakening its elasticity and increasing the maintenance cost of the equipment, which is conducive to long-term use, and the overall structure is simple and easy to operate. The filter plate can be quickly and conveniently disassembled and assembled from the cooling filter device body, which is conducive to cleaning and replacement of the filter plate, convenient for staff to operate, reduces the difficulty of staff's work, and meets people's needs."

[0005] Although this technical solution can facilitate the removal and replacement of the filter plate for cleaning, it still requires tedious removal and replacement operations, which makes cleaning inconvenient. It cannot be used flexibly in a queue state, and cannot clean the inner wall of the equipment. Therefore, a cooling oil filter device for an EDM machine is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a cooling oil filter device for an electric spark machine, which solves the problems that the existing electric spark machine cooling oil filter device is inconvenient to clean, has a single use and a high cost.

[0007] To achieve the above object, the present invention provides the following technical solution: a cooling oil filter device for an electric spark machine, comprising an upper cylinder and a lower cylinder connected through each other, a motor compartment installed in the lower cylinder, and a chuck connected above the motor compartment, a filter element clamped on the chuck, a telescopic member installed at the bottom of the lower cylinder, and a circular ring disk that is sealed and slidably sleeved on the outside of the motor compartment is rotatably connected to the telescopic member;

[0008] The upper cylinder is rotatably connected to a ring 1, the ring 1 is connected to a vertical plate and a guide plate in a sliding connection, the vertical plate is slidably connected to a scraper, the guide plate is slidably connected to a cleaning brush, and a pulling assembly is provided on the ring disk, which is used to pull the slide away from the vertical plate when the chuck moves downward;

[0009] An expansion assembly is provided between the vertical plate and the guide plate. The expansion assembly is used to drive the scraper to expand from the inside of the vertical plate to the outside and fit against the inner wall of the upper cylinder when the slide plate slides away from the vertical plate, and to drive the cleaning brush to expand from the inside of the guide plate to the outside and fit against the outer side of the filter element. A driving assembly is also provided in the upper cylinder, and the driving assembly is used to drive the ring to rotate, so as to drive the scraper to clean the inner wall of the upper cylinder and the cleaning brush to clean the outer side of the filter element.

[0010] Preferably, an oil inlet port is provided in an array at the upper end of the upper cylinder, and an oil inlet booster pump is also installed at the oil inlet port. An oil outlet flange cover is installed at the center of the upper cylinder, a groove is provided at the bottom of the filter element, and a clamping block is connected to the upper end of the chuck, and the clamping block cooperates with the groove to lock in place, and the filter element is clamped between the oil outlet flange cover and the chuck.

[0011] Preferably, the upper and lower sides of the inner wall of the upper cylinder are connected to an annular slide rail 1, the circular ring 1 is rotatably sleeved in the annular slide rail 1, the vertical plate is connected between the upper and lower circular rings 1, the circular ring 1 is radially connected to a guide plate, and the slide plate is slidably sleeved on the outside of the guide plate.

[0012] Preferably, the pulling assembly includes an annular slide rail 2 and a circular ring 2. The annular slide rail 2 is connected to the circular ring disk. The circular ring 2 is rotatably mounted in the annular slide rail 2. A rotating plate 1 is rotatably connected between each of the slide plates and the circular ring 2.

[0013] Preferably, the unfolding assembly includes a limit slide bar, a slide seat, a spring, a hinge seat, and a top plate, the vertical plate and the slide plate are both provided with openings, the vertical plate and the slide plate are both provided with a groove body on one side surface close to each other, and the groove body and the opening are passed through the limit slide bar, the slide seat is slidably connected in the opening, and the sliding sleeve is arranged on the outside of the limit slide bar, the spring sleeve is arranged on the outside of the limit slide bar, and the two ends of the spring are respectively connected to the slide seat and the inner wall of the groove body, the hinge seat is between the openings on both sides, and the hinge seat and the slide seats on both sides are rotatably connected with a rotating plate 2, the top plate is connected to the extending end of the rotating connection between the rotating plate 2 and the slide seat, and fits and resists the slide seat to slide.

[0014] Preferably, the cleaning brush and the scraper are slidably connected in their respective openings, and the inner wall of the opening of the vertical plate is also connected to a rubber curtain with an opening, and the two side surfaces of the scraper slide in contact with the inner edge of the opening of the rubber curtain.

[0015] Preferably, the driving assembly includes a swivel, an electromagnetic magnetic rod, a ring gear, a motor, and a sleeve plate. The swivel is rotatably mounted on the upper end of the inner wall of the upper cylinder, the electromagnetic magnetic rod array is installed on the inner wall of the swivel, the ring gear is connected to the upper end of the swivel, the motor is installed at the upper end of the upper cylinder, and its output end extends inside the upper cylinder, and is connected to a gear meshing with the ring gear at the extension end, the sleeve plate is connected to the upper end of the slide, and the sleeve plate is slidably mounted on the outside of the electromagnetic magnetic rod, the upper end of the upper cylinder is connected to a cleaning ring brush, the sleeve plate slides and scrapes with the outer side of the cleaning ring brush, and rectifier plates are connected on both sides of the slide.

[0016] Preferably, the annular slide rail 2 is connected to a limiting seat, and the end of the rotating plate 1 close to the circular ring 2 is connected to a limiting block, and the limiting block is engaged with the limiting seat when the inclination angle between the rotating plate 1 and the circular ring disk is greater than °.

[0017] Preferably, the lower end of the annular disk is connected to a shift rod, the bottom of the lower cylinder is connected to an oil collecting ring box, the upper end face of the oil collecting ring box is bolted with multiple fan-shaped filters, the oil collecting ring box is connected to a collection ring box at the upper end of the fan-shaped filter, and an electromagnetic valve tube is connected between one side of the lower cylinder and the oil collecting ring box, and fan-shaped inspection doors are symmetrically opened on both sides of the lower cylinder.

[0018] Preferably, the lower cylinder is connected to a guide ring platform on the inner wall above the fan-shaped inspection door, the bottom of the circular ring disk is connected to a ring groove, the upper end of the telescopic part is connected to a clamping ring that rotates with the ring groove, and the inner wall of the upper cylinder and the outer edge of the upper end of the circular ring disk are also connected with arc-angle teeth accordingly.

[0019] Compared with the related art, the cooling oil filter device for an electric spark machine provided by the present invention has the following beneficial effects:

[0020] 1. The present invention drives the chuck to rotate by the motor compartment, which can drive the filter element mounted thereon to rotate in the upper cylinder to centrifugally filter the cooling oil flowing in through the oil inlet pipe. After being filtered by the filter element, the cooling oil is discharged upward from the center of the filter element through the oil outlet flange gland. During the process, the cooling oil to be filtered flowing in from the oil inlet pipe will pass through the electromagnetic magnetic rod, and the electromagnetic magnetic rod will absorb large particles of metal debris, thereby achieving an additional magnetic filtration effect. In addition, through the design of multiple oil inlet pipes, the device can be flexibly installed on the electric spark machine for use in conjunction, or it can be used alone and connected to multiple oil inlet pipes to improve processing efficiency.

[0021] The cleaning brush of the sliding plate is pushed to fit the outer side of the filter element and is driven by the driving assembly to rotate, thereby driving the scraper to scrape the inner wall of the upper cylinder and the cleaning brush to clean the outer side of the filter element. During the movement of the slide plate, the large metal debris adsorbed on the electromagnetic magnetic rod is pushed toward the cleaning ring brush through the sleeve plate. At the same time, the electromagnetic magnetic rod is powered off and the magnetic force is canceled, and the driving assembly also drives the rotating ring to rotate synchronously, and the large metal debris pushed onto the electromagnetic magnetic rod close to it is removed by the cleaning ring brush, thereby facilitating the cleaning of the inner wall of the upper cylinder and the filter element, and avoiding the problem of frequent replacement of the filter element and increased use cost.

[0022] 3. The present invention can also make the limit block and the limit seat engage through the downward movement of the annular disk, so that the driving component can also synchronously drive the annular disk to rotate when the annular ring is rotated through the sleeve plate. At this time, due to the downward movement of the annular disk, the lever is driven to move into the collection ring box. At this time, a small amount of oil can be introduced through the oil inlet pipe to flush the interior of the upper cylinder cleaned by the scraper and the cleaning brush. The flushed cooling oil is filtered by the fan-shaped filter and flows into the oil collecting ring box to achieve reuse. The fan-shaped filter can filter out debris, and the rotation of the lever in the process will stir the flushing cooling oil collected in the collection ring box above the fan-shaped filter, thereby avoiding clogging of the fan-shaped filter caused by excessive debris therein, reducing the circulation efficiency of the cooling oil, and achieving flushing during cleaning, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a cross-sectional view of the front view structure of the present invention.

[0025] Figure 3 It is a cross-sectional view of the top view structure of the present invention.

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0027] Figure 5 It is a structural schematic diagram of the present invention without a lower cylinder.

[0028] Figure 6 This is a schematic diagram of the structure of the present invention without the upper cylinder and the lower cylinder.

[0029] Figure 7 Schematic diagram of the internal structure of the upper cylinder of the present invention.

[0030] Figure 8 It is a structural schematic diagram of the pulling assembly of the present invention.

[0031] Figure 9 Schematic diagram of the structure of the components of the present invention.

[0032] Figure 10 Schematic diagram of the internal structure of the vertical board and the sliding plate of the present invention.

[0033] Figure 11 Schematic diagram of the related structure between the vertical board and the sliding plate of the present invention.

[0034] In the figure: 1. Upper cylinder; 2. Lower cylinder; 3. Oil inlet pipe; 4. Oil outlet flange gland; 5. Oil inlet booster pump; 6. Motor compartment; 7. Guide ring; 8. Chuck; 9. Filter element; 10. Clamping block; 11. Rotating ring; 12. Electromagnetic magnet rod; 13. Ring gear; 14. Motor; 15. Gear; 16. Cleaning ring brush; 17. Telescopic member; 18. Circular disk; 19. Ring groove; 20. Clamping ring; 21. Arc angle clamping gear; 22. Push rod; 23. Circular slide rail 1; 24. Circular ring 1; 25. Vertical plate; 26. , guide plate; 27, slide plate; 28, rectifier plate; 29, sleeve plate; 30, cleaning brush; 31, scraper; 32, annular slide rail 2; 33, circular ring 2; 34, turn plate 1; 35, opening; 36, trough body; 37, limit slide bar; 38, slide seat; 39, spring; 40, hinge seat; 41, turn plate 2; 42, top plate; 43, rubber curtain; 44, limit block; 45, limit seat; 46, collecting ring box; 47, oil collecting ring box; 48, fan-shaped filter; 49, solenoid valve tube; 50, fan-shaped inspection door. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] See also Figures 1-11 The present invention provides a technical solution: a cooling oil filter device for an electric spark machine, comprising an upper cylinder 1 and a lower cylinder 2 connected through each other, a motor compartment 6 installed in the lower cylinder 2, and a chuck 8 connected above the motor compartment 6, a filter element 9 clamped on the chuck 8, a telescopic member 17 is installed at the bottom of the lower cylinder 2, and a ring disk 18 with a sealing sliding sleeve on the outside of the motor compartment 6 is rotatably connected to the telescopic member 17, such as Figure 1 and 2 As shown, the diameter of the upper cylinder 1 is smaller than that of the lower cylinder 2, and the annular disk 18 is located at the junction of the upper cylinder 1 and the lower cylinder 2, and can perform a sleeve seal on the lower end of the upper cylinder 1. The drive motor is sealed in the motor compartment 6, and the output end of the drive motor is sealed through the motor compartment 6, and a chuck 8 is installed on the outside of the motor compartment 6;

[0037] A circular ring 24 is rotatably connected to the upper cylinder 1, a vertical plate 25 is connected to the circular ring 24, and a guide plate 26 is slidably connected to the vertical plate 25. A scraper 31 is slidably connected to the vertical plate 25, and a cleaning brush 30 is slidably connected to the guide plate 26. A pulling assembly is provided on the circular ring disk 18, which is used to pull the slide plate 27 away from the vertical plate 25 when the chuck 8 moves downward;

[0038] An expansion assembly is provided between the vertical plate 25 and the guide plate 26. The expansion assembly is used to drive the scraper 31 to expand from the inside of the vertical plate 25 to the outside and fit against the inner wall of the upper cylinder 1 when the slide plate 27 slides away from the vertical plate 25, and to drive the cleaning brush 30 to expand from the inside of the guide plate 26 to the outside and fit against the outer side of the filter element 9. A driving assembly is also provided in the upper cylinder 1. The driving assembly is used to drive the ring 1 24 to rotate, so as to drive the scraper 31 to clean the inner wall of the upper cylinder 1 and the cleaning brush 30 to clean the outer side of the filter element 9.

[0039] Furthermore, an oil inlet port 3 is provided at the upper end of the upper cylinder 1, and an oil inlet booster pump 5 is also installed at the oil inlet port 3. An oil outlet flange gland 4 is installed at the center of the upper cylinder 1. A groove is provided at the bottom of the filter element 9. A clamping block 10 is connected to the upper end of the chuck 8. The clamping block 10 cooperates with the groove to lock the filter element 9. The filter element 9 is clamped between the oil outlet flange gland 4 and the chuck 8. Figure 1 and 2 As shown, the filter element 9 is located between the oil outlet flange cover 4 and the chuck 8, and can be stably driven to rotate by the chuck 8 through the cooperation of the groove and the block 10 to achieve centrifugal filtration. At the same time, multiple oil inlet pipes 3 are set, and the oil inlet booster pump 5 is installed on the oil inlet pipe 3, which is convenient for connecting multiple cooling oil inlet sources at the same time when the device is used alone. At the same time, the device can also be installed on the electric spark machine for follow-up use.

[0040] Furthermore, the upper and lower sides of the inner wall of the upper cylinder 1 are connected to an annular slide rail 23, the ring 24 is rotatably mounted in the annular slide rail 23, the vertical plate 25 is connected between the upper and lower rings 24, the ring 24 is radially connected to a guide plate 26, and the slide plate 27 is slidably mounted on the outer side of the guide plate 26, as shown in FIG. Figure 7 As shown, the rotatable sleeve arrangement of the annular slide rail 23 and the circular ring 24 can enhance the stability of the rotation of the circular ring 24 in the upper cylinder 1, and the setting of the guide plate 26 can also stably guide the sliding of the slide plate 27.

[0041] Furthermore, the pulling assembly includes an annular slide rail 2 32 and a circular ring 2 33. The annular slide rail 2 32 is connected to the circular ring disk 18. The circular ring 2 33 is rotatably mounted in the annular slide rail 2 32. A rotating plate 1 34 is rotatably connected between each slide plate 27 and the circular ring 2 33. Figure 8 As shown, when the annular disk 18 is driven downward by the telescopic member 17 to open the lower end of the upper cylinder 1 and form a through-hole in the lower cylinder 2, the rotating plate 34 will be rotated together, and the slide plate 27 will be pulled to slide on the guide plate 26 away from the vertical plate 25.

[0042] The cam 38 is engaged with the cam 38 and the cam 38 is engaged with the cam 38 and the cam 38 is engaged with the cam 38. Figure 9 、 10 As shown in Figure 11, when the slide plate 27 slides away from the vertical plate 25, it will pull the rotating plate 21 to rotate, driving the upper and lower hinged seats 40 between the vertical plate 25 and the slide plate 27 away from each other, and the rotation of the rotating plate 21 will also drive the top plate 42 connected to the extended end of the rotation connection between it and the slide seat 38 to conflict with the slide seat 38, thereby driving the scraper 31 and the cleaning brush 30 sliding in the openings 35 in the vertical plate 25 and the slide plate 27 respectively away from each other and extending to the outside of their respective openings 35, and making the scraper 31 fit against the inner wall of the upper cylinder 1, and the cleaning brush 30 fit against the outer side of the filter element 9, so as to achieve cleaning of the inner wall of the upper cylinder 1 and the filter element 9, while avoiding frequent replacement of the filter element 9 and reducing the cost of use.

[0043] Furthermore, the cleaning brush 30 and the scraper 31 are slidably connected in their respective openings 35. The inner wall of the opening 35 of the vertical plate 25 is also connected to a rubber curtain 43 with an opening. The two side surfaces of the scraper 31 slide along the inner edge of the opening of the rubber curtain 43. Figure 9 and 11 As shown, the reciprocating sliding of the slide plate 27 can cause the scraper 31 and the cleaning brush 30 to slide in their respective openings 35, and then the scraper 31 will scrape against the rubber curtain 43 in the opening 35 to achieve self-cleaning, and the cleaning brush 30 will scrape against the inner wall of the opening 35 to achieve self-cleaning, so that in the cleaning state, the scraper 31 and the cleaning brush 30 can be self-cleaned by the occasional reciprocating sliding of the slide plate 27.

[0044] Furthermore, the driving assembly includes a swivel 11, an electromagnetic magnetic rod 12, a ring gear 13, a motor 14, and a sleeve 29. The swivel 11 is rotatably mounted on the upper end of the inner wall of the upper cylinder 1. The electromagnetic magnetic rod 12 array is mounted on the inner wall of the swivel 11. The ring gear 13 is connected to the upper end of the swivel 11. The motor 14 is mounted on the upper end of the upper cylinder 1, and its output end extends inside the upper cylinder 1. A gear 15 meshing with the ring gear 13 is connected to the extended end. The sleeve 29 is connected to the upper end of the slide 27, and the sleeve 29 is slidably sleeved on the outside of the electromagnetic magnetic rod 12. The upper end of the upper cylinder 1 is connected to a cleaning ring brush 16, and the sleeve 29 slides and scrapes with the outer side of the cleaning ring brush 16. Rectifier plates 28 are connected to both sides of the slide 27, as shown in FIG. Figure 2 and 7 As shown, the arrangement of the electromagnetic magnetic rod 12 can perform the first magnetic filtration on the cooling oil entering from the oil inlet pipe 3, avoiding the mixing of large particles of metal debris, so as to enhance the filtering effect of subsequent centrifugal filtration, and because the slide plate 27 is connected to the sleeve plate 29 and is slidably sleeved on the outer side of the electromagnetic magnetic rod 12, when the motor 14 drives the rotating ring 11 to drive the electromagnetic magnetic rod 12 to rotate, it will rotate together with the ring 1 24 through the sleeve plate 29. At the same time, the sliding of the slide plate 27 can also push the large particles of debris on the electromagnetic magnetic rod 12 that is powered off and the magnetic force is canceled to the side close to the cleaning ring brush 16 during cleaning, and the large particles of debris are wiped off by the rotation of the electromagnetic magnetic rod 12. The arrangement of the rectifier plate 28 is convenient for centrifugal filtration and when the slide plate 27 is close to the vertical plate 25 and does not rotate, its upper structure is shaped, so that the cooling oil to be filtered in the upper cylinder 1 can be smoothly told to rotate centrifugally.

[0045] Furthermore, the annular slide rail 2 32 is connected to a limit seat 45, and the end of the rotating plate 1 34 close to the ring 2 33 is connected to a limit block 44. When the inclination angle between the rotating plate 1 34 and the annular disk 18 is greater than 45 degrees, the limit block 44 engages with the limit seat 45. Figure 8 As shown, when the annular disk 18 moves downward, the slide plate 27 is pulled so that the scraper 31 is in contact with the inner wall of the upper cylinder 1, and the cleaning brush 30 is in contact with the filter element 9. At this time, the limit block 44 is engaged with the limit seat 45. In this state, the operation of the driving assembly drives the ring 1 24 to rotate, and at the same time drives the annular disk 18 to rotate.

[0046] Furthermore, the lower end of the annular disk 18 is connected to a lever 22, the bottom of the lower cylinder 2 is connected to an oil collecting ring box 47, the upper end surface of the oil collecting ring box 47 is bolted with multiple fan-shaped filters 48, the oil collecting ring box 47 is connected to a collection ring box 46 at the upper end of the fan-shaped filter 48, and a solenoid valve pipe 49 is connected between one side of the lower cylinder 2 and the oil collecting ring box 47. Fan-shaped inspection doors 50 are symmetrically opened on both sides of the lower cylinder 2. Figure 1 、 2As shown in Figure 6, the downward movement of the annular disk 18 will drive the lever 22 to move downward into the collecting ring box 46. At this time, when the scraper 31 and the cleaning brush 30 are cleaning, the cooling oil to be filtered can be introduced through the oil inlet pipe 3 to flush the upper cylinder 1. The flushed cooling oil will then be diverted to the collecting ring box 46 and fall into the oil collecting ring box 47 through the fan-shaped filter 48, so as to facilitate re-filtration and reuse through the solenoid valve tube 49. The debris will be retained on the fan-shaped filter 48, and the lever 22 can stir the debris on the fan-shaped filter 48 to prevent the debris from concentrating and clogging the fan-shaped filter 48, thereby reducing its circulation efficiency.

[0047] Furthermore, the lower cylinder 2 is connected to a guide ring platform 7 on the inner wall above the fan-shaped inspection door 50, the bottom of the annular disk 18 is connected to a ring groove 19, the upper end of the telescopic member 17 is connected to a clamping ring 20 that rotates with the annular groove 19, and the inner wall of the upper cylinder 1 and the outer edge of the upper end of the annular disk 18 are also connected with arc angle teeth 21, as shown in FIG. Figure 2 As shown, the arrangement of the annular groove 19 and the retaining ring 20 can stabilize the rotation of the annular disk 18, and the arrangement of the arc-angle retaining teeth 21 facilitates the positioning of the annular disk 18 with the upper cylinder 1 when the annular disk 18 moves upward to seal the upper cylinder 1, thereby ensuring that the annular disk 18 can be stable and not rotate, while maintaining sealing, and collecting debris collected in the annular box 46, which can also be cleaned by opening the fan-shaped inspection door 50.

[0048] Working principle: The chuck 8 is driven to rotate by the motor compartment 6, which can drive the filter element 9 mounted thereon to rotate in the upper cylinder 1 to centrifugally filter the cooling oil flowing in through the oil inlet pipe 3. After being filtered by the filter element 9, the cooling oil is discharged upward from the center of the filter element 9 through the oil outlet flange gland 4. During the process, the cooling oil to be filtered flowing in from the oil inlet pipe 3 will pass through the electromagnetic magnetic rod 12, and the electromagnetic magnetic rod 12 will adsorb large particles of metal debris, thereby achieving the effect of adding a magnetic filtration layer. Moreover, through the design of multiple oil inlet pipes 3, the device can be flexibly installed on the electric spark machine for use in conjunction, or it can be used alone and connected to multiple oil inlet pipes to improve processing efficiency.

[0049] The telescopic member 17 drives the annular disc 18 downward to open the bottom of the upper cylinder 1, so that the upper cylinder 1 and the lower cylinder 2 are connected. The annular disc 18 moves downward, and then pulls the rotating plate 1 34 to rotate, so that the slide plate 27 slides away from the vertical plate 25, and the top plate 42 connected to the rotating plate 2 41 pushes the slide seat 38 to push the scraper 31 sliding in the opening 35 in the vertical plate 25 to fit the inner wall of the upper cylinder 1, and the cleaning brush 30 sliding in the opening 35 in the slide plate 27 is pushed to fit the outer side of the filter element 9. At this time, the motor 14 runs, driving the rotating ring 11 to rotate, and the filter element 9 can be cleaned by the sleeve plate 2. 9 and the electromagnetic magnetic rod 12 are set together, driving the scraper 31 to clean and scrape the inner wall of the upper cylinder 1, and the cleaning brush 30 to clean the outer side of the filter element 9. During the movement of the slide plate 27, the large metal debris adsorbed on the electromagnetic magnetic rod 12 will be pushed to the cleaning ring brush 16 through the sleeve plate 29. At the same time, the electromagnetic magnetic rod 12 is controlled to be powered off and the magnetic force is canceled, and then the large metal debris pushed to the electromagnetic magnetic rod 12 close to it is removed by the cleaning ring brush 16, which facilitates the cleaning of the inner wall of the upper cylinder 1 and the filter element 9, and can also avoid the problem of frequent replacement of the filter element 9 increasing the cost of use;

[0050] By moving the annular disc 18 downward, the limit block 44 and the limit seat 45 can be locked, so that when the sleeve plate 29 rotates with the ring 1 24, the annular disc 18 can be driven to rotate synchronously. At this time, due to the downward movement of the annular disc 18, the lever 22 is driven to move into the collection ring box 46. At this time, a small amount of oil can be fed through the oil inlet pipe 3, and the interior of the upper cylinder 1 cleaned by the scraper 31 and the cleaning brush 30 is flushed. The flushed cooling oil is filtered by the fan-shaped filter 48 and flows to the oil collecting ring. The fan-shaped filter 48 can filter out the debris, and the rotation of the lever 22 in the process will stir the flushing cooling oil collected in the collecting ring box 46 above the fan-shaped filter 48, thereby avoiding the blockage of the fan-shaped filter 48 caused by excessive debris therein, reducing the circulation efficiency of the cooling oil, and achieving flushing during cleaning, thereby improving the cleaning effect, and the debris collected in the collecting ring box 46 can also be cleaned by opening the fan-shaped inspection door 50.

Claims

1. A cooling oil filter device for an electric spark machine, comprising an upper cylinder (1) and a lower cylinder (2) connected in a vertical direction, a motor compartment (6) being installed in the lower cylinder (2), and a chuck (8) being connected above the motor compartment (6), a filter element (9) being mounted on the chuck (8), characterized in that: The bottom of the lower cylinder (2) is provided with a telescopic member (17), and a circular ring disk (18) which is rotatably connected to the outer side of the motor compartment (6) and is slidingly sleeved thereon with a seal is provided through the telescopic member (17); A circular ring (24) is rotatably connected in the upper cylinder (1), a vertical plate (25) is connected to the circular ring (24) and a guide plate (26) is slidably connected, a scraper (31) is slidably connected in the vertical plate (25), a cleaning brush (30) is slidably connected in the guide plate (26), and a pulling assembly is provided on the circular ring disk (18), and the pulling assembly is used to pull the slide plate (27) away from the vertical plate (25) to slide when the chuck (8) moves downward; An expansion assembly is provided between the vertical plate (25) and the guide plate (26). The expansion assembly is used to drive the scraper (31) to expand from the inside of the vertical plate (25) to the outside and fit with the inner wall of the upper cylinder (1) when the slide plate (27) slides away from the vertical plate (25), and to drive the cleaning brush (30) to expand from the inside of the guide plate (26) to the outside and fit with the outer side of the filter element (9). A driving assembly is also provided in the upper cylinder (1). The driving assembly is used to drive the ring (24) to rotate, so as to drive the scraper (31) to clean the inner wall of the upper cylinder (1) and the cleaning brush (30) to clean the outer side of the filter element (9).

2. The cooling oil filter device for an EDM machine according to claim 1, characterized in that: An oil inlet pipe port (3) is provided at the upper end of the upper cylinder (1), and an oil inlet booster pump (5) is also installed at the oil inlet pipe port (3). An oil outlet flange pressure cover (4) is installed at the center of the upper cylinder (1). A groove is provided at the bottom of the filter element (9). A clamping block (10) is connected to the upper end of the chuck (8). The clamping block (10) is engaged with the groove and is locked in position. The filter element (9) is clamped between the oil outlet flange pressure cover (4) and the chuck (8).

3. The cooling oil filter device for an EDM machine according to claim 1, characterized in that: The upper and lower sides of the inner wall of the upper cylinder (1) are both connected to an annular slide rail (23), the circular ring (24) is rotatably sleeved in the annular slide rail (23), the vertical plate (25) is connected between the upper and lower circular rings (24), the circular ring (24) is radially connected to a guide plate (26), and the slide plate (27) is slidably sleeved on the outer side of the guide plate (26).

4. The cooling oil filter device for an EDM machine according to claim 3, characterized in that: The pulling assembly includes an annular slide rail 2 (32) and a circular ring 2 (33). The annular slide rail 2 (32) is connected to the circular ring disk (18). The circular ring 2 (33) is rotatably mounted in the annular slide rail 2 (32). A rotating plate 1 (34) is rotatably connected between each of the slide plates (27) and the circular ring 2 (33).

5. The cooling oil filter device for an EDM machine according to claim 3, characterized in that: The unfolding assembly includes a limiting slide bar (37), a slide bar seat (38), a spring (39), a hinge seat (40), and a top plate (42). An opening (35) is provided on the vertical plate (25) and the slide plate (27). A groove (36) is provided on the side surface where the vertical plate (25) and the slide plate (27) are close to each other, and the groove (36) and the opening (35) are connected. The limiting slide bar (37) is connected in the groove (36), the slide bar seat (38) is slidably connected in the opening (35), and the sliding sleeve is provided in the limiting slide bar (37). The outer side of the limiting slide bar (37), the spring (39) is sleeved on the outer side of the limiting slide bar (37), and the two ends of the spring (39) are respectively connected to the inner wall of the slide bar seat (38) and the groove body (36), the hinge seat (40) is between the openings (35) on both sides, and the hinge seat (40) and the slide bar seats (38) on both sides are rotatably connected with a rotating plate 2 (41), and the top plate (42) is connected to the extension end of the rotating connection between the rotating plate 2 (41) and the slide bar seat (38), and slides in contact with the slide bar seat (38).

6. The cooling oil filter device for an EDM machine according to claim 5, characterized in that: The cleaning brush (30) and the scraper (31) are respectively slidably connected in their respective openings (35). The inner wall of the opening (35) of the vertical plate (25) is also connected to a rubber curtain (43) with an opening. The two side surfaces of the scraper (31) slide in contact with the inner edge of the opening of the rubber curtain (43).

7. The cooling oil filter device for an EDM machine according to claim 3, characterized in that: The driving assembly comprises a rotating ring (11), an electromagnetic magnetic rod (12), a ring gear (13), a motor (14), and a sleeve (29). The rotating ring (11) is rotatably mounted on the upper end of the inner wall of the upper cylinder (1). The electromagnetic magnetic rod (12) array is mounted on the inner wall of the rotating ring (11). The ring gear (13) is connected to the upper end of the rotating ring (11). The motor (14) is mounted on the upper end of the upper cylinder (1), and its output end extends inside the upper cylinder (1). A gear (15) meshing with the ring gear (13) is connected to the extended end. The sleeve (29) is connected to the upper end of the slide (27), and the sleeve (29) is slidably sleeved on the outer side of the electromagnetic magnetic rod (12). The upper end of the upper cylinder (1) is connected to a cleaning ring brush (16). The sleeve (29) slides and scrapes with the outer side of the cleaning ring brush (16). Rectifier plates (28) are connected to both sides of the slide (27).

8. The cooling oil filter device for an EDM machine according to claim 4, characterized in that: The annular slide rail 2 (32) is connected to a limit seat (45), and the end of the rotating plate 1 (34) close to the annular ring 2 (33) is connected to a limit block (44). When the inclination angle between the rotating plate 1 (34) and the annular disk (18) is greater than 45 degrees, the limit block (44) is engaged with the limit seat (45).

9. The cooling oil filter device for an EDM machine according to claim 8, characterized in that: The lower end of the annular disk (18) is connected to a lever (22), the bottom of the lower cylinder (2) is connected to an oil collecting ring box (47), the upper end surface of the oil collecting ring box (47) is bolted with multiple fan-shaped filter screens (48), the oil collecting ring box (47) is connected to a collecting ring box (46) at the upper end of the fan-shaped filter screen (48), a solenoid valve pipe (49) is connected between one side of the lower cylinder (2) and the oil collecting ring box (47), and fan-shaped inspection doors (50) are symmetrically opened on both sides of the lower cylinder (2).

10. The cooling oil filter device for an EDM machine according to claim 9, characterized in that: The lower cylinder (2) is connected to a guide ring platform (7) on the inner wall above the fan-shaped inspection door (50), the bottom of the annular disk (18) is connected to a ring groove (19), the upper end of the telescopic member (17) is connected to a retaining ring (20) that rotates with the annular groove (19), and the inner wall of the upper cylinder (1) and the outer edge of the upper end of the annular disk (18) are also connected to arc angle teeth (21) correspondingly.

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