A chip separation device for CNC machine tools and the CNC machine tool

Abstract

This invention relates to a chip separation device for CNC machine tools and the CNC machine tool itself. The separation device includes a frame, a guide channel mounted on the frame, multiple magnetic suction components, a filter component, and a recovery device. The guide channel is inclined to convey a mixture of chips and coolant collected by the machine tool to the filter component. Multiple magnetic suction components are spaced apart along the extension direction of the guide channel. Each magnetic suction component can move independently into the guide channel to magnetically attract the chips in the mixture and can be removed from the guide channel to release the magnetic attraction. The filter component filters out the coolant from the mixture output from the guide channel and separately conveys the coolant and the filtered chips to the recovery device for recycling. This invention removes chips more thoroughly and efficiently. Furthermore, by initially separating the chips with magnetic suction components and then filtering them with the filter component, the processing load on the filter component is reduced, the equipment size is reduced, and the equipment is more conducive to miniaturization.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, and in particular to a chip separation device for CNC machine tools and a CNC machine tool. Background Technology

[0002] CNC machine tools, short for Computer Numerical Control machine tools, are automated machine tools equipped with a program control system. This control system logically processes programs with control codes or other symbolic instructions, decodes them, represents them with coded numbers, and inputs them into the CNC device via an information carrier. After processing, the CNC device sends various control signals to control the machine tool's movements, automatically machining parts according to the shape and dimensions required by the drawings.

[0003] When CNC machine tools process parts, coolant is typically used for cooling to ensure stable machining. This coolant usually needs to be reused, requiring coolant recycling for further use. However, during coolant recycling, some iron filings may become mixed in. Existing systems generally use a recycling tank to separate the coolant containing iron filings. While this sedimentation method allows the iron filings to settle at the bottom of the tank, it is time-consuming and inefficient. These problems urgently need to be addressed. Summary of the Invention

[0004] This invention discloses a chip separation device for CNC machine tools and a CNC machine tool, aiming to solve the technical problems existing in the prior art.

[0005] The present invention adopts the following technical solution: In a first aspect, the present invention provides a chip separation device for a CNC machine tool, comprising a frame, a guide channel mounted on the frame, a plurality of magnetic attraction components, a filter component, and a recycling device; the guide channel is inclined for conveying a mixture of chips and coolant collected by the machine tool to the filter component; the plurality of magnetic attraction components are spaced apart along the extension direction of the guide channel, each magnetic attraction component being individually movable into the guide channel to magnetically attract the chips in the mixture, and being able to move out of the guide channel and release the magnetic attraction on the chips; the filter component is used to filter out the coolant from the mixture output from the guide channel and to convey the coolant and the filtered chips to the recycling device for recycling.

[0006] In the iron chip separation device for CNC machine tools of the present invention, the magnetic suction assembly includes a moving component and an electromagnetic component; the moving component can drive the electromagnetic component to move vertically into or out of the guide channel, and can move to a position outside the guide channel opening after the electromagnetic component moves out of the guide channel and pour the adsorbed iron chips into the recycling device; the electromagnetic component is rotatably connected to the moving end of the moving component, and the axis of rotation is perpendicular to the extension direction of the guide channel, the bottom of the electromagnetic component is below the liquid surface of the mixture, and the top is exposed above the liquid surface.

[0007] In the chip separation device for CNC machine tools of the present invention, the electromagnetic component includes a bearing, an iron core, a first coil, and a control switch; the bearing is installed on the moving end of the moving component; the iron core includes a rotating shaft and support arms; the rotating shaft is mounted on the bearing; there are multiple support arms, which are spaced apart circumferentially along the rotating shaft, and each support arm is vertically fixed to the rotating shaft. When chip adsorption is performed, a portion of the support arms is below the liquid surface; the first coil is wound around the rotating shaft and connected to an external power supply; the control switch is used to control the first coil to be energized or de-energized.

[0008] In the chip separation device for CNC machine tools of the present invention, there are a plurality of first coils and a plurality of control switches; each first coil is wound around the rotating shaft and is arranged in a one-to-one correspondence with the control switch.

[0009] The chip separation device for CNC machine tools of the present invention further includes a weighing element and a controller; the top of the weighing element is hinged to the moving part, and the bottom is connected to the bearing; the controller is connected to the moving part and the weighing element, and controls the movement of the moving part based on the measured value of the weighing element.

[0010] In the iron chip separation device for CNC machine tools of the present invention, the filtering assembly includes a bracket, a magnetic roller device, a liquid receiving component, and a scraper; the magnetic roller device, the liquid receiving component, and the scraper are respectively mounted on the bracket, the magnetic roller device is rotatably connected to the bracket, and together with the liquid receiving component, forms a receiving trough; the receiving trough is used to receive the mixed liquid flowing out of the guide trough, and is capable of filtering out the coolant in the mixed liquid; the magnetic roller device is used to adsorb iron chips in the receiving trough and carry them away from the receiving trough by rotation; one side of the scraper is rotatably connected to the bracket, and the other edge abuts against the surface of the magnetic roller device, for scraping the iron chips adsorbed on the magnetic roller device away from the surface of the magnetic roller device.

[0011] In the chip separation device for CNC machine tools of the present invention, the liquid receiving component includes a side plate and a bottom plate; the side plates are arranged in pairs, fixed to the bracket, and perpendicular to the axis of the magnetic roller device, and one side of the side plate is sealed against the surface of the magnetic roller device; the bottom plate is disposed between the side plates and is inclined, with its bottom abutting against the magnetic roller device and sealed to the side plates, and the bottom plate and / or the side plates are provided with leakage holes.

[0012] In the chip separation device for CNC machine tools of the present invention, the base plate is sealed to the side plate by an elastic sheet so that it is stretched when the receiving trough is full.

[0013] In the chip separation device for CNC machine tools of the present invention, the magnetic roller device includes a plurality of first iron cores, a plurality of second coils, a switching structure, a roller body, and a driving assembly; the roller body is rotatably connected to the bracket and driven to rotate by the driving assembly; the first iron cores are arranged along the axis of the roller body and embedded in the roller body, the plurality of first iron cores are arranged at intervals along the circumference of the roller body, and the second coils are arranged in a one-to-one correspondence with the first iron cores and are wound around the first iron cores; the switching structure is used to control the energization or de-energization of each second coil, so that the first iron core is energized when it is located in the receiving groove and de-energized when the first iron core is close to the scraper.

[0014] In a second aspect, the present invention also provides a CNC machine tool, which includes any of the above-described chip separation devices and a machine tool body; the machine tool body has a recovery tank for collecting the mixture on the table of the machine tool body; the bottom of the recovery tank is a discharge port; and the guide channel is located below the discharge port.

[0015] The technical solution adopted in this invention can achieve the following beneficial effects: This invention mainly provides a chip separation device for CNC machine tools. It is based on guiding the mixed liquid collected by the machine tool through a guide channel, using a magnetic suction component to initially separate the chips in the mixed liquid, and then using a filter component to further separate the coolant and chips. This makes the chip removal more thorough, the separation time shorter, and the efficiency higher. Furthermore, the initial separation of chips by the magnetic suction component followed by filtration by the filter component can reduce the processing load of the filter component, reduce the size of the equipment, and is more conducive to the miniaturization of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below, forming part of the present invention. The illustrative embodiments of the present invention and their descriptions explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1This is one of the structural schematic diagrams of a chip separation device for CNC machine tools according to the present invention; Figure 2 This is a second schematic diagram of the structure of a chip separation device for CNC machine tools according to the present invention; Figure 3 This is a three-dimensional structural diagram of the magnetic suction component of the present invention; Figure 4 This is a schematic diagram of the magnetic suction assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the magnetic roller device of the present invention; Figure 7 This is a schematic diagram of the liquid receiving component of the present invention; Figure 8 This is a schematic diagram of the connection state between the iron core and the switch structure of the present invention; Figure 9 This is a schematic diagram of the machine tool according to the present invention; Figure 10 This is a schematic diagram of the internal structure of the machine tool of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Frame; 2. Guide channel; 3. Magnetic suction assembly; 31. Moving part; 32. Electromagnetic part; 321. Bearing; 322. Iron core; 3221. Rotating shaft; 3222. Support arm; 323. First coil; 324. Control switch; 325. Weighing element; 4. Filter assembly; 41. Support frame; 42. Magnetic suction roller device; 421. First iron core; 4211. Main body; 4212. Coil rod; 422. Second coil; 423. Switch structure Structure; 4231. First slider; 4232. First annular slide rail; 4233. Second slider; 4234. Second annular slide rail; 424. Roller; 425. Drive assembly; 426. Y-type connector; 43. Liquid receiving component; 431. Side plate; 432. Base plate; 433. Leakage hole; 434. Elastic sheet; 44. Scraper; 45. Material receiving trough; 5. Recycling equipment; 51. Coolant recycling chamber; 52. Iron filings recycling chamber; 6. Controller. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this invention, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly indicated.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a magnetic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0020] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] To address the problems existing in the prior art, this application provides a chip separation device for CNC machine tools and a CNC machine tool.

[0022] Example 1 like Figure 1 and Figure 2 As shown, this embodiment provides a chip separation device for CNC machine tools, which includes a frame 1, a guide channel 2, multiple magnetic suction components 3, a filter component 4, and a recycling device 5 mounted on the frame 1. The guide channel 2 is inclined, i.e., at an angle to the horizontal direction, such as 30-45° or other angles, which can be determined according to the working conditions, and is used to transport the mixture of chips and coolant collected by the machine tool to the filter component 4. The multiple magnetic suction components 3 are spaced apart along the extension direction of the guide channel 2. Each magnetic suction component 3 can move individually into the guide channel 2 to magnetically attract the chips in the mixture, and can move out of the guide channel 2 and release the magnetic attraction to the chips. The filter component 4 is used to filter out the coolant in the mixture output from the guide channel 2 and transport the coolant and the filtered chips to the recycling device 5 for recycling.

[0023] The present invention provides a chip separation device for CNC machine tools, which guides the mixed liquid collected by the machine tool through a guide channel 2, performs preliminary separation of the chips in the mixed liquid using a magnetic suction component 3, and then further separates the coolant and chips using a filter component 4. This results in more thorough chip removal, shorter separation time, and higher efficiency. Furthermore, the preliminary separation of chips by the magnetic suction component 3 followed by filtration by the filter component 4 reduces the processing load of the filter component 4, reduces the size of the equipment, and is more conducive to miniaturization of the equipment.

[0024] In some preferred embodiments, such as Figures 1-4 As shown, the magnetic attraction component 3 includes a moving part 31 and an electromagnetic part 32. The moving part 31 can drive the electromagnetic part 32 to move vertically into or out of the guide channel 2, and can move the electromagnetic part 32 to a position outside the opening of the guide channel 2 after it moves out of the guide channel 2 and pour the adsorbed iron filings into the recycling device 5. The electromagnetic part 32 is rotatably connected to the moving end of the moving part 31, and the axis of rotation is perpendicular to the extension direction of the guide channel 2. The bottom of the electromagnetic part 32 is below the liquid surface of the mixture, and the top is exposed above the liquid surface. Based on this, when the electromagnetic component 32 adsorbs iron filings in the mixture, as the number of adsorbed iron filings increases, the impact force of the liquid on the electromagnetic component 32 increases, thereby driving the electromagnetic component 32 to rotate. At this time, the part of the iron filings that has not been adsorbed enters the liquid surface of the mixture to continue adsorbing the iron filings. This ensures the consistency of the adsorption effect on the iron filings. After the electromagnetic component 32 has completely adsorbed the iron filings, it is removed from the guide channel 2 by the moving component 31, and the iron filings are removed from the electromagnetic component 32. After the magnetic adsorption component 3, which is full of iron filings, is removed, another brand-new magnetic adsorption component 3 with an electromagnetic component 32 is moved into the guide channel 2 to continue adsorbing the iron filings, ensuring the continuity of the adsorption and separation effect on the iron filings.

[0025] Preferably, the moving part 31 includes an XY moving platform composed of two linear moving mechanisms arranged perpendicularly to each other, such as a screw slide mechanism or other existing linear moving mechanisms; in this case, the moving part 31 first drives the electromagnetic part 32 to move vertically, and then moves horizontally to the outside of the guide channel 2.

[0026] Preferably, the length of the electromagnetic component 32 is approximately the same as the width of the guide groove 2, so as to more comprehensively adsorb the iron filings in the guide groove 2.

[0027] In some preferred embodiments, such as Figures 1-4 As shown, the electromagnetic component 32 includes a bearing 321, an iron core 322, a first coil 323, and a control switch 324. The bearing 321 is mounted on the moving end of the movable component 31, for example, by connecting it to the moving end of the movable component 31 via a mounting rod. The iron core 322 includes a rotating shaft 3221 and support arms 3222. The rotating shaft 3221 is fixed to the bearing 321 so that the rotating shaft 3221 can rotate. There are multiple support arms 3222, such as 2 / 3 / 4 / 5, etc. The support arms 3222 are spaced circumferentially along the rotating shaft 3221, and each support arm 3222 is vertically fixed to the rotating shaft 3221. When iron filings are adsorbed, a portion of each support arm 3222 is below the liquid surface. The first coil 323 is wound around the rotating shaft 3221 and connected to an external power supply. The control switch 324 is used to control the first coil 323 to be energized or de-energized. Thus, the electromagnetic component 32 is electromagnetically attracted when energized and de-energized when de-energized, and the iron filings fall off by themselves, making the operation more convenient and efficient.

[0028] Preferably, the support arm 3222 is a strip structure with an isosceles or equilateral triangle cross-section, with the apex pointing towards the feed direction of the guide channel 2; based on this, it has less impact on the flow of the mixture.

[0029] Preferably, the multiple support arms 3222 are radially distributed on the same circumference of the rotating shaft 3221, that is, one end is fixed to the rotating shaft 3221 and the other end extends radially along the rotating shaft 3221.

[0030] Preferably, multiple sets of support arms 3222 are provided along the length of the rotating shaft 3221, that is, multiple support arms 3222 are provided at certain intervals in a radial distribution; in this way, iron filings in the mixture within the entire width range of the guide channel 2 are adsorbed.

[0031] Preferably, support arms 3222 are provided on both sides of the bearing 321; by adopting a symmetrical arrangement, the force exerted by the rotating shaft 3221 on the bearing 321 is more balanced, thus making the rotation smoother.

[0032] Preferably, only a portion of the support arm 3222 is submerged below the liquid surface, such as half of it, to provide sufficient lever arm to drive the support arm 3222 to rotate. The specific size can be determined according to the working conditions. More preferably, the guide channel 2 is made of an insulating material, such as plastic. More preferably, there is a gap between the bottom end of the support arm 3222 and the bottom surface of the guide channel 2, such as 5mm.

[0033] Preferably, the system includes multiple first coils 323 and multiple control switches 324; each first coil 323 is wound around a rotating shaft 3221 and is correspondingly arranged with a control switch 324. The control switches 324 control the energization or de-energization of the first coils 323; based on this, the magnetic strength of the iron core 322 can be changed by turning on one or more first coils 323 to adapt to different working conditions. More preferably, the system also includes a controller 6, with each control switch 324 connected to the controller 6. The controller 6 controls the opening and closing of the control switches 324 to achieve automatic control and improve the level of automation. Specifically, the control switches 324 can be either Bluetooth switches or wired switches. The controller 6 can be a PLC controller, and the specific control implementation can refer to existing technologies.

[0034] In some preferred embodiments, such as Figures 1-4As shown, the system also includes a weighing element 325 and a controller 6. The top of the weighing element 325 is hinged to the moving part 31, and the bottom is connected to the bearing 321. The controller 6 is connected to the moving part 31 and the weighing element 325, and controls the movement of the moving part 31 based on the measured value of the weighing element 325. Based on this, the controller 6 controls the moving part 31 through the measured value of the weighing element 325, ensuring that the electromagnetic component 32 adsorbs more fully, has a higher utilization rate, and can promptly remove the electromagnetic component 32 after it is fully adsorbed with iron filings, thus guaranteeing the effectiveness of iron filings removal. Specifically, when the measured value of the weighing element 325 obtained by the controller 6 is the same as or greater than a preset threshold, the controller 6 controls the moving part 31 to move; the specific threshold can be obtained based on actual measurement, i.e., the measured value when the electromagnetic component 32 is fully adsorbed with iron filings.

[0035] Preferably, the weighing element 325 can be an electronic hook scale or other crane scale.

[0036] In some preferred embodiments, such as Figure 5As shown, the filter assembly 4 includes a bracket 41, a magnetic roller device 42, a liquid receiving component 43, and a scraper 44. The magnetic roller device 42, the liquid receiving component 43, and the scraper 44 are respectively installed on the bracket 41. The magnetic roller device 42 is rotatably connected to the bracket 41 and forms a receiving trough 45 with the liquid receiving component 43. The receiving trough 45 is used to receive the mixed liquid flowing out of the guide channel 2 and can filter out the coolant in the mixed liquid. If the receiving trough 45 is provided with a drain hole for coolant discharge, it should be noted that the size of the drain hole should be smaller than the size of the iron filings, or a filter layer can be set at the drain hole to prevent the iron filings from flowing out. The total area of ​​the drain hole should be sufficient to allow the coolant to flow out at any time. The discharge, i.e., not accumulating and overflowing in the receiving trough 45, can be determined according to the flow rate of the coolant. Preferably, the drain hole is set at the upper part of the receiving trough 45 to retain a certain amount of liquid in the trough, which is conducive to the adsorption of iron filings. The magnetic suction roller device 42 is used to adsorb the iron filings in the receiving trough 45 and carry them away from the receiving trough 45 by rotation, such as rotating from bottom to top in the receiving trough 45. The scraper 44 and the liquid receiving component 43 are set on both sides of the magnetic suction roller device 42. One side of the scraper 44 is rotatably connected to the bracket 41, and the other edge abuts against the surface of the magnetic suction roller device 42, which is used to scrape the iron filings adsorbed on the magnetic suction roller device 42 away from the surface of the magnetic suction roller device 42. Based on this, the receiving trough 45 receives the mixed liquid and deposits it within it. The magnetic roller device 42 then attracts and removes the iron filings from the receiving trough 45, achieving separation of the iron filings and coolant. This separation is effective, efficient, and allows for continuous operation. Furthermore, the magnetic roller device 42 reduces the probability of the drain hole becoming clogged. Preferably, the drain hole is located on the side of the receiving trough 45 furthest from the magnetic roller device 42. This way, after the mixed liquid enters the receiving trough 45, the iron filings will move towards the magnetic roller device 42 under its magnetic attraction, reducing the accumulation of iron filings in the drain hole and allowing for smoother coolant flow. Specifically, the size of the receiving trough 45 is determined by the flow rate of the mixed liquid to be processed, such as meeting a total flow rate of 30 seconds or other dimensions.

[0037] Preferably, a torsion spring is provided on the side of the scraper 44 that is rotatably connected to the bracket 41, and the torsion spring abuts against the surface of the magnetic roller device 42, such as abutting against the upper half surface of the magnetic roller device 42.

[0038] In some preferred embodiments, such as Figure 5As shown, the liquid receiving component 43 includes a side plate 431 and a bottom plate 432. The side plates 431 are arranged in pairs, parallel to each other and spaced apart, fixed to the bracket 41, and perpendicular to the axis of the magnetic roller device 42. One side of each side abuts and seals against the surface of the magnetic roller device 42. This sealing can be achieved by using an elastic layer or other existing sealing methods. The bottom plate 432 is positioned between the side plates 431 and is inclined, forming a triangular-like groove. This facilitates the accumulation of iron filings at the bottom of the groove, which are then attracted and removed by the magnetic roller device 42. The bottom of the bottom plate abuts and seals against the magnetic roller device 42 and is also sealed to the side plates 431. A leakage hole 433 is provided on the bottom plate 432 and / or the side plates 431. Preferably, the leakage hole 433 is located on the bottom plate 432.

[0039] Preferably, such as Figure 7 As shown, the base plate 432 is sealed to the side plate 431 by an elastic sheet 434 so that it is stretched when the receiving trough 45 is full; based on this, it can adapt to the working conditions of sudden increase in processing volume.

[0040] In some preferred embodiments, such as Figure 6 As shown, the magnetic roller device 42 includes multiple first iron cores 421, multiple second coils 422, a switch structure 423, a roller body 424, and a drive assembly 425. The roller body 424 is rotatably connected to the bracket 41 and is driven to rotate by the drive assembly 425. The first iron cores 421 are arranged along the axis of the roller body 424 and are embedded in the roller body 424. They can be exposed on the surface or completely inside the roller body 424. When set inside the roller body 424, attention should be paid to the setting position to ensure the adsorption strength of iron filings. Multiple first iron cores The second coil 422 is arranged at intervals along the circumference of the roller body 424, and is arranged one-to-one with the first iron core 421 and wound around the first iron core 421, such as wound around the rod on the end face of the first iron core 421; the switch structure 423 is used to control the energization or de-energization of each second coil 422, so that the first iron core 421 is energized when it is located in the receiving groove 45, and de-energized when the first iron core 421 is close to the scraper 44; thereby, automatic operation is realized, work efficiency is improved, and de-energization when close to the scraper 44 is more conducive to the removal of iron filings.

[0041] Preferably, the switch structure 423 can be a remote control switch, such as a Bluetooth switch, connected to the controller 6, and controlled to open or close by the controller 6; or, other switch structures.

[0042] Preferably, the cross-section of the first iron core 421 is a fan-shaped structure.

[0043] Preferably, such as Figure 6As shown, the switch structure 423 includes multiple first sliders 4231, a first annular slide rail 4232, multiple second sliders 4233, and a second annular slide rail 4234. The first annular slide rail 4232 is electrically connected to the positive terminal of an external power source and is slidably connected to and in contact with the multiple first sliders 4231. The first sliders 4231 are made of conductive material. The first sliders 4231 are arranged one-to-one with the second coils 422 and are electrically connected to the positive terminal of the second coils 422. The second annular slide rail 4234 is electrically connected to the negative terminal of an external power source and is slidably connected to and in contact with the multiple second sliders 4233. The second sliders 4233 are made of conductive material. The second sliders 4233 are arranged one-to-one with the second coils 422 and are electrically connected to the negative terminal of the external power source. The negative terminal of the second coil 422; the first annular slide rail 4232 and / or the second annular slide rail 4234 include an insulating section and a conductive section, wherein the conductive section corresponds to the receiving groove 45 and is connected to an external power source, and the insulating section is set corresponding to the scraper 44. When the first iron core 421 rotates, it drives the first slider 4231 and the second slider 4233 to move along the slide rail through the second coil 422. When the first iron core 421 rotates into the receiving groove 45, the slider moves to the conductive section, the second coil 422 is energized, and the first iron core 421 adsorbs iron filings. When it approaches the scraper 44, the slider moves to the insulating section, the second coil 422 is de-energized, the first iron core 421 is released from the adsorption state, and the iron filings fall off. This method of realizing the energization or de-energization is more reliable. The first annular slide rail 4232 and the second annular slide rail 4234 are both circular rings, and are concentrically arranged, and their surfaces are parallel to the end face of the roller body 424. They are fixed on the bracket 41, and attention should be paid to the insulated connection.

[0044] Preferably, the first slider 4231 and the second slider 4233 are both concave structures with a circular cross-section, that is, three cylinders are arranged perpendicularly to each other or the inner surface is an arc surface that fits with the first annular slide rail 4232 and the second annular slide rail 4234.

[0045] Specifically, the insulating section is set on the side corresponding to the scraper 44. For example, the section between the top of the second annular slide rail 4234 and the scraper 44 is set as the insulating section 4234B, and the other section is the conductive section 4234A. The conductive section 4234A is connected to the external power system. At this time, the first iron core 421 loses its magnetism after rotating from bottom to top through the top of the roller 424, and the iron filings slide down to the scraper 44, making them easier to separate.

[0046] More preferably, the roller body 424 is made of a non-electromagnetic material, such as plastic; and with multiple first iron cores 421 spaced around the roller body 424, the iron filings are not continuously adsorbed, which can prevent the iron filings from forming magnetic links when the surface of the roller body 424 is covered with iron filings, thus avoiding separation difficulties.

[0047] Preferably, the portion of the scraper 44 that abuts against the surface of the roller body 424 is an arc-shaped surface that fits the shape of the roller body 424 surface; thus, it is easier to remove iron filings from the surface of the roller body 424.

[0048] Preferably, the drive assembly 425 includes a motor and a reducer. The motor drives the reducer to rotate, which in turn drives the roller 424 to rotate. The specific connection method can be found in the prior art and will not be described in detail here. More preferably, the motor can be a variable frequency motor, and the motor speed can be adjusted by the controller 6 to adapt to different working conditions. For example, when the iron filings content is high, the speed can be increased to avoid the accumulation of iron filings.

[0049] Preferably, such as Figure 6 and Figure 8 As shown, the first iron core 421 includes a main body 4211 and a coil rod 4212. The main body 4211 is disposed inside the roller body 424. One end of the coil rod 4212 is connected to the main body 4211 and the other end protrudes from the roller body 424 for winding the second coil 422. The coil rod 4212 is connected to the first slider 4231 and the second slider 4233 through an elastic Y-shaped connector 426, so that the first slider 4231 abuts against the first annular slide rail 4232 and the second slider 4233 abuts against the second annular slide rail 4234.

[0050] In some preferred embodiments, the recycling device 5 is a recycling box, including a coolant recycling chamber 51 and an iron filings recycling chamber 52, which respectively recycle iron filings and coolant. That is, openings are provided at the locations where iron filings and coolant are discharged to receive iron filings and coolant, wherein the coolant can be reused.

[0051] Example 2 This embodiment provides a CNC machine tool, such as Figure 9 and Figure 10 As shown, it includes the scrap separation device and machine tool body as described in Embodiment 1 above; the machine tool body has a recovery tank C for collecting the mixed liquid on the table of the machine tool body; the bottom of the recovery tank C is the discharge port; the guide channel 2 is located below the discharge port.

[0052] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A swarf separating device for a numerically controlled machine tool, characterised in that, The machine frame, the guide groove, the magnetic assembly, the filter assembly and the recycling device are installed on the machine frame; The guide groove is inclined to transport the mixture of iron filings and coolant collected by the machine tool to the filter assembly; The magnetic assembly is arranged along the extension direction of the guide groove, and each magnetic assembly can be moved into the guide groove to magnetically attract the iron filings in the mixture and moved out of the guide groove to release the magnetic attraction to the iron filings; The filter assembly is used to filter the coolant in the mixture output by the guide groove and transport the coolant and the filtered iron filings to the recycling device for recycling.

2. The swarf separating device for a numerically controlled machine tool according to claim 1, characterized in that, The magnetic assembly comprises a moving part and an electromagnetic part; The moving part can drive the electromagnetic part to move vertically into or out of the guide groove, and can move to a position outside the guide groove after the electromagnetic part moves out of the guide groove and dump the adsorbed iron filings into the recycling device; The electromagnetic part is rotationally connected to the moving end of the moving part, and the rotation axis is perpendicular to the extension direction of the guide groove, and the bottom of the electromagnetic part is below the liquid level of the mixture, and the top is exposed above the liquid level.

3. The swarf separating device for a numerically controlled machine tool according to claim 2, characterized in that, The electromagnetic part comprises a bearing, an iron core, a first coil and a control switch; The bearing is installed on the moving end of the moving part; The iron core comprises a rotating shaft and a support arm; The rotating shaft is installed in the bearing; The support arm is a plurality of support arms, and the plurality of support arms are arranged along the circumference of the rotating shaft, and each support arm is vertically fixed to the rotating shaft, and a part of the support arm is below the liquid level when the iron filings are adsorbed; The first coil is arranged around the rotating shaft and connected to an external power supply; The control switch is used to control the power-on or power-off of the first coil.

4. The swarf extraction device for a numerically controlled machine tool according to claim 3, characterized in that, A plurality of first coils and a plurality of control switches are included; Each first coil is arranged around the rotating shaft and corresponds to the control switch.

5. The swarf separating device for a numerically controlled machine tool according to claim 3, characterized in that, A weighing element and a controller are also included; The top of the weighing element is hingedly connected to the moving part, and the bottom is connected to the bearing; The controller is connected to the moving part and the weighing element, and controls the movement of the moving part based on the measurement value of the weighing element.

6. The swarf separating device for a numerically controlled machine tool according to claim 1, characterized by The filter assembly comprises a support, a magnetic roller device, a liquid receiving part and a scraper; The magnetic roller device, the liquid receiving part and the scraper are respectively installed on the support, the magnetic roller device is rotationally connected to the support, and the magnetic roller device and the liquid receiving part form a material receiving groove; The material receiving groove is used to receive the mixture discharged from the guide groove, and can filter the coolant in the mixture; The magnetic roller device is used to adsorb the iron filings in the material receiving groove and move away from the material receiving groove by rotating; One side of the scraper is rotationally connected to the support, and the other side edge abuts against the surface of the magnetic roller device to shovel the adsorbed iron filings away from the surface of the magnetic roller device.

7. The swarf extraction device for a numerically controlled machine tool according to claim 6, characterized in that, The liquid receiving part comprises a side plate and a bottom plate; The side plates are arranged in pairs, fixed to the support, perpendicular to the axis of the magnetic roller device, and one side abuts against the surface of the magnetic roller device to seal. The bottom plate is disposed between the side plates and is inclined. Its bottom is sealed to the magnetic roller device and is sealed to the side plates. The bottom plate and / or the side plates are provided with leakage holes.

8. The swarf separating device for a numerically controlled machine tool according to claim 7, characterized in that, The base plate is sealed to the side plate by an elastic sheet so that it is stretched when the receiving trough is full.

9. The swarf separating device for a numerically controlled machine tool according to claim 6, characterized in that, The magnetic roller device includes multiple first iron cores, multiple second coils, a switching structure, a roller body, and a drive assembly; The roller is rotatably connected to the bracket and is driven to rotate by the drive assembly; The first iron core is disposed along the axis of the roller body and is embedded in the roller body; a plurality of the first iron cores are disposed at intervals along the circumference of the roller body. The second coil is provided in a one-to-one correspondence with the first iron core and is wound around the first iron core; The switching structure is used to control the energization or de-energization of each of the second coils, so that the first iron core is energized when it is located in the receiving groove, and de-energized when the first iron core is close to the scraper.

10. A numerically controlled machine tool, characterized by comprising: Includes the scrap separation device and machine tool body as described in any one of claims 1-9; The machine tool body has a recovery tank for collecting the mixture on the table of the machine tool body; The bottom of the recycling tank is the discharge port; The guide channel of the scrap separation device is located below the discharge port.

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