A cutting fluid filtering device

Abstract

The invention discloses a cutting fluid filtering device, which belongs to the field of mechanical processing technology, and includes a box body, a filter plate, a push cylinder and a filter plate. The push cylinder is composed of a cylinder body, a piston rod, a first air port and a second air port. The front side of the box body is provided with a side plate, and also includes a thickened end cover, which is provided with an air inlet and an air outlet, an oil mist device, which is provided with an air inlet pipe port and an air outlet pipe port, a five-way electromagnetic reversing valve, the bottom end of the five-way electromagnetic reversing valve is provided with a first interface, a second interface and a third interface in sequence, the top end of the five-way electromagnetic reversing valve is provided with a fourth interface and a fifth interface in sequence, the thickened end cover is sleeved on the piston rod, and the thickened end cover is fixedly connected to the cylinder body. The invention solves the problem that the cutting fluid easily flows to the piston rod of the cylinder, the cutting fluid enters into the cylinder body of the cylinder along with the movement of the piston rod, the cylinder will make a huge noise under long-term work, and the service life of the cylinder is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a cutting fluid filtering device. Background Art

[0002] Cutting fluid is an industrial liquid used in the process of metal cutting and grinding to cool and lubricate tools and workpieces. It is scientifically compounded with a variety of super-functional additives and has good cooling, lubrication, rust prevention, oil removal and cleaning, anti-corrosion, and easy dilution. In the process of metal cutting and grinding, a certain amount of metal chips will be generated, and the metal chips will flow away with the cutting fluid. In order to make full use of resources, the metal chips in the cutting fluid are generally filtered out and reprocessed for use.

[0003] Patent No. CN210209663U discloses a cutting fluid filtering device, including a box body, a chip outlet is provided on one side of the box body; a liquid inlet hole connected to the inner cavity of the box body is provided on the top of the box body; the bottom of the box body is densely covered with liquid outlet holes connected to the inner cavity of the cavity; a chip collecting device is provided in the box body; the chip collecting device includes a collecting plate and a collecting plate driving mechanism; and the collecting plate is set at an angle with the inner bottom surface of the box body; the driving mechanism drives the collecting plate to collect the chips in the box body from the chip outlet, and the movement trajectory of the collecting plate is a quadrilateral. There is no need to manually handle the chips, the degree of automation is high, and the production efficiency is improved.

[0004] Patent No. CN210147638U discloses a cutting fluid filtering device, including a box body, one end of which is provided with a chip outlet; the top of the box body is provided with a liquid inlet hole connected to the inner cavity of the box body; the inner bottom surface of the box body is densely covered with a plurality of liquid outlet holes penetrating the bottom surface of the box body; the box body is provided with a chip collecting mechanism for collecting the chips in the box body from the chip outlet. The present invention is provided with a box body, one end of which is provided with a chip outlet, the top of the box body is provided with a liquid inlet hole connected to the inner cavity of the box body, the inner bottom surface of the box body is densely covered with a plurality of liquid outlet holes penetrating the bottom surface of the box body, the box body is provided with a chip collecting mechanism for collecting the chips in the box body from the chip outlet, which can not only filter the chips in the coolant, but also recycle the filtered chips, saving production costs.

[0005] However, the above two patents have the following problems during use: First, the cutting fluid easily flows onto the piston rod of the cylinder, and the cutting fluid enters into the cylinder body of the cylinder as the piston rod moves. The cylinder will make huge noise under long-term operation and greatly reduce the service life of the cylinder; Second, when the piston rod of the cylinder is at the maximum stroke, it is easy to cause the piston rod to be unstable, affecting the work of cutting fluid filtration. Summary of the invention

[0006] The purpose of the present invention is to provide a cutting fluid filtering device to solve the problem that the cutting fluid easily flows onto the piston rod of the cylinder, and the cutting fluid enters the cylinder body of the cylinder as the piston rod moves. Under long-term operation, the cylinder will emit huge noise and greatly reduce the service life of the cylinder.

[0007] The invention provides a cutting fluid filtering device, comprising a box body, a filter plate, a pushing cylinder and a filter plate, the pushing cylinder consisting of a cylinder body, a piston rod, a first air port and a second air port, a side plate is provided on the front side of the box body, and also comprises a thickened end cover, the thickened end cover is provided with an air inlet and an air outlet, an oil mist collector, the oil mist collector is provided with an air inlet pipe port and an air outlet pipe port, a five-way electromagnetic reversing valve, the bottom end of the five-way electromagnetic reversing valve is provided with a first interface, a second interface and a third interface in sequence, the top end of the five-way electromagnetic reversing valve is provided with a fourth interface and a fifth interface in sequence, the thickened end cover is sleeved on the piston rod, and the thickened end cover is fixedly connected to the cylinder body, the oil mist collector and the five-way electromagnetic reversing valve are both installed on the outer wall of the box body, the second interface is connected with the air outlet pipe port, the first interface and the third interface are both connected with the air inlet, the fourth interface is connected with the first air port, and the fifth interface is connected with the second air port.

[0008] Preferably, a liquid inlet elbow is provided on the top of the box body, and the liquid inlet elbow is located between the side plate and the slat plate, and a liquid outlet is provided on the liquid inlet elbow to prevent the cutting fluid from directly contacting the piston rod.

[0009] Preferably, the end of the cylinder body is provided with four lengthened bolts, the thickened end cover is provided with four mounting holes corresponding to the four lengthened bolts one by one, and the thickened end cover is sleeved on the four lengthened bolts through the four mounting holes and fixed.

[0010] Preferably, an arc plate is welded on the filter plate, and one end of the arc plate away from the filter plate is welded to the side plate.

[0011] Preferably, a conduit is provided on the air outlet, and the conduit extends into the oil mist recovery device.

[0012] Preferably, an annular groove is provided at the connection surface between the thickened end cover and the piston rod, and the annular groove is respectively connected to the air inlet and the air outlet.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The oil in the oil mist device is atomized into the gas, and the gas containing the lubricating oil flows into the five-way electromagnetic reversing valve through the air outlet pipe and the second interface. The five-way electromagnetic reversing valve works to make the gas containing the lubricating oil flow into the cylinder through the fourth interface and the first air port. The gas containing the lubricating oil pushes the piston rod to extend, and the lubricating oil lubricates the cylinder. Subsequently, the waste gas containing the lubricating oil in the cylinder flows back into the five-way electromagnetic reversing valve through the second air port and the fifth interface. Immediately afterwards, the five-way electromagnetic reversing valve continues to work to make the waste gas containing the lubricating oil flow back into the thickened end cover through the first interface and the air inlet. The lubricating oil in the waste gas lubricates the piston rod, and finally the waste gas is discharged through the air outlet hole. When the piston rod needs to retract, the gas flows into the oil mist device from the air inlet pipe, and the lubricating oil in the oil mist device is atomized into the gas, and the gas containing the lubricating oil flows into the five-way electromagnetic reversing valve through the air outlet pipe and the second interface. The five-way electromagnetic reversing valve works to make the gas containing lubricating oil flow into the cylinder body through the fifth interface and the second air port, the gas containing lubricating oil pushes the piston rod to retract, and the lubricating oil lubricates the cylinder body at the same time, then the exhaust gas containing lubricating oil in the cylinder body flows back to the five-way electromagnetic reversing valve through the first air port and the fourth interface, and then the five-way electromagnetic reversing valve continues to work to make the exhaust gas containing lubricating oil flow back through the third interface and the air inlet to the thickened end cover, the lubricating oil in the exhaust gas lubricates the piston rod, and finally the exhaust gas is discharged through the air outlet. After the above steps, the extension and retraction of the piston rod drives the rake plate to move to rake out the metal chips accumulated on the filter plate, thereby achieving the purpose of filtering the cutting fluid, the lubricating oil lubricates the cylinder body and the piston rod, the pushing cylinder will not make a huge noise, and the service life of the pushing cylinder is greatly increased, and the thickened end cover can stably support the piston rod when the piston rod is at its maximum stroke, and will not affect the working of the cutting fluid filtration.

[0015] Secondly, the cutting fluid of the present invention flows to the filter plate in the box through the liquid inlet elbow, and the cutting fluid will not flow directly on the sieve plate and the piston rod. The sieve plate can better remove metal chips in the cutting fluid, and the lubricating oil has a better lubricating effect on the piston rod.

[0016] Thirdly, when the rafting plate of the present invention is cleaning the metal chips accumulated on the filter plate, the rafting plate pushes the cutting fluid forward, and the cutting fluid flips to the rear side of the rafting plate along with the arc plate, so that the rafting plate can clean the metal chips contained in the cutting fluid from the filter plate, and at the same time avoid the accumulation of metal chips in the cutting fluid between the filter plate and the side plate under long-term operation.

[0017] Fourthly, the waste gas containing lubricating oil flows into the annular groove through the third interface and the air inlet, and the lubricating oil in the waste gas lubricates the piston rod. At the same time, the waste gas forms an air knife in the annular groove to blow out the cutting fluid attached to the piston rod through the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a partial cross-sectional view of the present invention;

[0021] Figure 3 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0022] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0023] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 ;

[0024] Figure 6 is a cross-sectional view of a thickened end cap of the present invention;

[0025] Figure numerals: box body 1, liquid inlet elbow 11, side plate 12, liquid outlet pipe port 13, filter plate 2, arc plate 21, pushing cylinder 3, cylinder body 31, piston rod 32, first air port 33, second air port 34, lengthened bolt 35, net plate 4, thickened end cover 5, air inlet 51, air outlet hole 52, annular groove 53, conduit 54, oil mist collector 6, air inlet pipe port 61, air outlet pipe port 62, five-way electromagnetic reversing valve 7, first interface 71, second interface 72, third interface 73, fourth interface 74, fifth interface 75. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Combine the following Figures 1 to 6 :

[0028] The embodiment of the present invention provides a cutting fluid filtering device, including a box body 1, a filter plate 2, a push cylinder 3 and a filter plate 4, wherein the push cylinder 3 is composed of a cylinder body 31, a piston rod 32, a first air port 33 and a second air port 34, a side plate 12 is provided on the front side of the box body 1, and further includes a thickened end cover 5, an air inlet 51 and an air outlet 52 are provided on the thickened end cover 5, an oil mist device 6, an air inlet pipe port 61 and an air outlet pipe port 62 are provided on the oil mist device 6, and a five-way electromagnetic reversing valve 7 is provided at the bottom end of the five-way electromagnetic reversing valve 7 with a first interface 71, a first interface 72 and a second interface 73 in sequence. The second interface 72 and the third interface 73, the top of the five-way electromagnetic reversing valve 7 is provided with a fourth interface 74 and a fifth interface 75 in sequence, the thickened end cover 5 is sleeved on the piston rod 32, and the thickened end cover 5 is fixedly connected to the cylinder body 31, the oil mist collector 6 and the five-way electromagnetic reversing valve 7 are both installed on the outer wall of the box body 1, the second interface 72 is connected to the air outlet pipe port 62, the first interface 71 and the third interface 73 are both connected to the air inlet 51, the fourth interface 74 is connected to the first air port 33, and the fifth interface 75 is connected to the second air port 34.

[0029] The cutting fluid flows to the filter plate 2, and then the gas flows from the air inlet port 61 to the oil mist collector 6. The lubricating oil in the oil mist collector 6 is atomized into the gas. The gas containing the lubricating oil flows through the air outlet port 62 and the second interface 72 to the five-way electromagnetic reversing valve 7. The five-way electromagnetic reversing valve 7 works to make the gas containing the lubricating oil flow through the fourth interface 74 and the first air port 33 to the cylinder body 31. The gas containing the lubricating oil pushes the piston rod 32 to extend, and the lubricating oil lubricates the cylinder body 31 at the same time. Then the exhaust gas containing the lubricating oil in the cylinder body 31 passes through the second air port 74. The exhaust gas containing lubricating oil flows back to the five-way electromagnetic reversing valve 7 through the first interface 71 and the air inlet 51, and then flows into the thickened end cover 5. The lubricating oil in the exhaust gas lubricates the piston rod 32. Finally, the exhaust gas is discharged through the air outlet 52. When the piston rod 32 needs to retract, the gas flows from the air inlet port 61 to the oil mist 6. The lubricating oil in the oil mist 6 is atomized into the gas. The gas containing lubricating oil flows to the five-way electromagnetic reversing valve 7 through the air outlet port 62 and the second interface 72. In the valve 7, the five-way electromagnetic reversing valve 7 works to make the gas containing lubricating oil flow into the cylinder body 31 through the fifth interface 75 and the second air port 34, and the gas containing lubricating oil pushes the piston rod 32 to retract, and the lubricating oil lubricates the cylinder body 31 at the same time, and then the waste gas containing lubricating oil in the cylinder body 31 flows back to the five-way electromagnetic reversing valve 7 through the first air port 33 and the fourth interface 74, and then the five-way electromagnetic reversing valve 7 continues to work to make the waste gas containing lubricating oil flow back to the thickened end cover 5 through the third interface 73 and the air inlet 51, and the lubricating oil in the waste gas The piston rod 32 is lubricated, and finally the exhaust gas is discharged through the air outlet 52. After the above steps, the extension and retraction of the piston rod 32 drives the sieve plate 4 to move to sieve the metal chips accumulated on the filter plate 2, thereby achieving the purpose of filtering the cutting fluid. The lubricating oil lubricates the cylinder body 31 and the piston rod 32, and the pushing cylinder 3 will not make a loud noise, and the service life of the pushing cylinder 3 is greatly increased. The thickened end cover 5 can stably support the piston rod 32 when the piston rod 32 is at the maximum stroke, and will not affect the work of cutting fluid filtration.

[0030] In a specific embodiment, a liquid inlet elbow 11 is provided on the top of the box body 1, and the liquid inlet elbow 11 is located between the side plate 12 and the sieve plate 4. A liquid outlet 13 is provided on the liquid inlet elbow 11 to prevent the cutting fluid from directly contacting the piston rod 32.

[0031] The cutting fluid flows to the filter plate 2 in the box body 1 through the liquid inlet elbow 11 and the liquid outlet 13. The cutting fluid will not flow directly on the sieve plate 4 and the piston rod 32. The sieve plate 4 can better remove metal chips in the cutting fluid, and the lubricating oil has a better lubrication effect on the piston rod 32.

[0032] In a specific embodiment, four lengthened bolts 35 are provided at the end of the cylinder body 31, and the thickened end cover 5 is provided with four mounting holes corresponding to the four lengthened bolts 35, and the thickened end cover 5 is fixed on the four lengthened bolts 35 through the four mounting holes.

[0033] This fixing method facilitates disassembly, assembly and replacement of the thickened end cover 5 .

[0034] In a specific embodiment, an arc plate 21 is welded to the filter plate 2 , and one end of the arc plate 21 away from the filter plate 2 is welded to the side plate 12 .

[0035] When the sieve plate 4 is cleaning the metal chips accumulated on the filter plate 2, the sieve plate 4 pushes the cutting fluid forward, and the cutting fluid flips to the rear side of the sieve plate 4 along with the arc plate 21, so that the sieve plate 4 can clean the metal chips contained in the cutting fluid from the filter plate 2, and at the same time avoid the accumulation of metal chips in the cutting fluid between the filter plate 2 and the side plate 12 during long-term operation.

[0036] In a specific embodiment, a conduit 54 is provided on the air outlet 52 , and the conduit 54 extends into the oil mist recovery device.

[0037] The oil mist recovery device is not shown in the attached drawings. The exhaust gas flows into the oil mist recovery device through the air outlet 52 and the conduit 54. The oil mist recovery device collects the lubricating oil remaining in the exhaust gas in a centralized manner to facilitate the subsequent reuse of the lubricating oil and avoid the exhaust gas being directly discharged into the air to affect the environment.

[0038] In a specific embodiment, an annular groove 53 is provided at the connection surface between the thickened end cover 5 and the piston rod 32 , and the annular groove 53 is respectively connected to the air inlet 51 and the air outlet 52 .

[0039] The waste gas containing lubricating oil flows into the annular groove 53 through the third interface 73 and the air inlet 51 , and the lubricating oil in the waste gas lubricates the piston rod 32 . At the same time, the waste gas forms an air knife in the annular groove 53 to blow out the cutting fluid attached to the piston rod 32 through the air outlet 52 .

[0040] The working principle of the present invention is as follows: the cutting fluid flows to the filter plate 2, and then the gas flows from the air inlet port 61 to the oil mist device 6, the lubricating oil in the oil mist device 6 is atomized into the gas, and the gas containing the lubricating oil flows through the air outlet port 62 and the second interface 72 to the five-way electromagnetic reversing valve 7, and the five-way electromagnetic reversing valve 7 works to make the gas containing the lubricating oil flow through the fourth interface 74 and the first air port 33 to the cylinder body 31, and the gas containing the lubricating oil pushes the piston rod 32 to extend, and at the same time, the lubricating oil lubricates the cylinder body 31, and then the lubricating oil in the cylinder body 31 The exhaust gas flows back to the five-way electromagnetic reversing valve 7 through the second air port 34 and the fifth interface 75, and then the five-way electromagnetic reversing valve 7 continues to work to return the exhaust gas containing lubricating oil to the thickened end cover 5 through the first interface 71 and the air inlet 51, and the lubricating oil in the exhaust gas lubricates the piston rod 32. Finally, the exhaust gas is discharged through the air outlet 52. When the piston rod 32 needs to retract, the gas flows from the air inlet pipe port 61 to the oil mist device 6, and the lubricating oil in the oil mist device 6 is atomized into the gas. The gas containing lubricating oil flows to the five-way electromagnetic reversing valve 7 through the air outlet pipe port 62 and the second interface 72. The five-way electromagnetic reversing valve 7 works to make the gas containing lubricating oil flow into the cylinder body 31 through the fifth interface 75 and the second air port 34, and the gas containing lubricating oil pushes the piston rod 32 to retract, and the lubricating oil lubricates the cylinder body 31 at the same time, and then the waste gas containing lubricating oil in the cylinder body 31 flows back to the five-way electromagnetic reversing valve 7 through the first air port 33 and the fourth interface 74, and then the five-way electromagnetic reversing valve 7 continues to work to make the waste gas containing lubricating oil flow back to the thickened end cover 5 through the third interface 73 and the air inlet 51, and the waste gas in the waste gas The lubricating oil lubricates the piston rod 32, and finally the exhaust gas is discharged through the air outlet 52. After the above steps, the extension and retraction of the piston rod 32 drives the sieve plate 4 to move to sieve the metal chips accumulated on the filter plate 2, thereby achieving the purpose of filtering the cutting fluid. The lubricating oil lubricates the cylinder body 31 and the piston rod 32, and the pushing cylinder 3 will not make a loud noise, and the service life of the pushing cylinder 3 is greatly increased. The thickened end cover 5 can stably support the piston rod 32 when the piston rod 32 is at the maximum stroke, and will not affect the work of cutting fluid filtration.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cutting fluid filtering device, comprising a housing (1), a filter plate (2), a push cylinder (3) and a filter plate (4), wherein the push cylinder (3) is composed of a cylinder body (31), a piston rod (32), a first air port (33) and a second air port (34), and a side plate (12) is provided on the front side of the housing (1). Features: It also includes a thickened end cover (5), wherein the thickened end cover (5) is provided with an air inlet (51) and an air outlet (52). A lubricator (6), wherein the lubricator (6) is provided with an air inlet pipe opening (61) and an air outlet pipe opening (62). A five-way electromagnetic reversing valve (7), wherein a first interface (71), a second interface (72) and a third interface (73) are sequentially provided at the bottom end of the five-way electromagnetic reversing valve (7), and a fourth interface (74) and a fifth interface (75) are sequentially provided at the top end of the five-way electromagnetic reversing valve (7). The thickened end cover (5) is sleeved on the piston rod (32), and the thickened end cover (5) is fixedly connected to the cylinder body (31); the oil mist collector (6) and the five-way electromagnetic reversing valve (7) are both installed on the outer wall of the box body (1); the second interface (72) is connected to the air outlet (62); the first interface (71) and the third interface (73) are both connected to the air inlet (51); the fourth interface (74) is connected to the first air port (33); and the fifth interface (75) is connected to the second air port (34); A liquid inlet elbow (11) is provided on the top of the box body (1), and the liquid inlet elbow (11) is located between the side plate (12) and the slat plate (4), and a liquid outlet (13) is provided on the liquid inlet elbow (11) to prevent the cutting fluid from directly contacting the piston rod (32); An annular groove (53) is provided at the connection surface between the thickened end cover (5) and the piston rod (32), and the annular groove (53) is respectively connected to the air inlet (51) and the air outlet (52).

2. A cutting fluid filtering device according to claim 1, Features: The end of the cylinder body (31) is provided with four lengthened bolts (35), the thickened end cover (5) is provided with four mounting holes corresponding to the four lengthened bolts (35) one by one, and the thickened end cover (5) is sleeved on the four lengthened bolts (35) and fixed through the four mounting holes.

3. A cutting fluid filtering device according to claim 1, Features: An arc-shaped plate (21) is welded to the filter plate (2), and one end of the arc-shaped plate (21) away from the filter plate (2) is welded to the side plate (12).

4. A cutting fluid filtering device according to claim 1, Features: A conduit (54) is provided on the air outlet (52), and the conduit (54) extends into the oil mist recovery device.

Images