Linear cutting machine tool

Abstract

The invention relates to the technical field of linear cutting machine tools, and provides a linear cutting machine tool which comprises a machine tool body. The wire cylinder is rotationally arranged on the machine tool body. The cleaning cover is arranged on the machine tool body and located on one side of the wire cylinder. The cutting wire is circularly arranged on the machine tool body, wound on the wire cylinder and penetrates through the cleaning cover, the wire cylinder is configured to rotate to drive the cutting wire to circulate so as to enable the cutting wire to cut a workpiece, and the cleaning cover is used for cleaning the cutting wire in the cleaning cover; an acid inlet is formed in the bottom of the pickling frame and used for providing acid liquor into the pickling frame so that the acid liquor can soak the cutting wires on the wire cylinders and react with oxidation layers on the cutting wires. By means of the technical scheme, the technical problems that in the related technology, when a chemical pickling treatment mode is used for treating cutting wires circularly working on a linear cutting machine tool, the cutting wires cannot adapt to and are not prone to being comprehensively and evenly attached with acid liquor, then the acting duration of the acid liquor cannot be ensured, and splashing is likely to happen after clean water flushing is conducted are solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of wire cutting machine tools, and in particular, to a wire cutting machine tool. Background Art

[0002] Wire cutting machine tools use a moving metal wire as a tool electrode, and pass a pulse current between the metal wire and the workpiece. The workpiece is cut by the corrosion effect of the pulse discharge. When the gap between the workpiece and the wire electrode is large enough to be broken down by the pulse voltage, spark discharge is generated between the two to cut the workpiece. The instructions issued by the CNC device can process workpieces with arbitrary curved contours.

[0003] It has been found that if the cutting wire - molybdenum wire is not stored properly, an uneven oxide layer will form on its surface. If the wire is directly processed, the discharge gap between the cutting wire and the workpiece will be inconsistent during cutting, resulting in the affected size accuracy of the cut workpiece. The oxide layer will make the surface of the molybdenum wire rough. During the cutting process, the friction between the molybdenum wire and the guide wheel and other contact parts will increase and become uneven, causing the molybdenum wire to shake during operation, which will further affect the size accuracy of the workpiece.

[0004] Therefore, in response to the above problems, mechanical processing methods are currently used to allow the molybdenum wire to run at a normal cutting speed for a period of time in a no-load state. Through the friction between the molybdenum wire and components such as the guide wheel, the surface oxide layer is ground off to make the surface of the molybdenum wire smoother. However, if the above method is not operated properly, such as excessive grinding force or inappropriate tools, the cutting wire may break, and it is difficult to ensure the uniformity of oxide layer removal. Therefore, chemical pickling can also be used to ensure the uniformity of oxide layer removal, which is less likely to cause the cutting wire to break than mechanical processing.

[0005] However, the chemical pickling treatment method has the following problems in actual use: the cutting wire needs to be rinsed with clean water in time after pickling to remove residual acid on the surface, but it is difficult to make the acid adhere to the cutting wire evenly during the circulation process, and the acid takes at least several minutes to more than ten minutes to take effect, which is not suitable for the cutting wire in the circulation process. Rinsing the cutting wire with clean water can easily cause liquid splashing and pollute the surrounding environment of the machine tool. Summary of the invention

[0006] In order to overcome the above-mentioned defects, an embodiment of the present disclosure provides a wire cutting machine, which solves the technical problem in the related art that when the cutting wire circulating in the wire cutting machine is treated by chemical pickling, it cannot adapt to and is not easy to adhere to the acid liquid completely and evenly, and thus cannot ensure the length of time the acid liquid can take effect, and the subsequent water washing is also prone to splashing.

[0007] According to one aspect, at least one embodiment of the present disclosure provides a wire cutting machine tool, comprising: Machine tool body; A wire drum, the wire drum being rotatably arranged on the machine tool body; A cleaning cover, the cleaning cover is arranged on the machine tool body and is located on one side of the wire drum; A cutting wire, the cutting wire is circulated on the machine tool body, wound on the wire drum, and passes through the cleaning cover, the wire drum is configured to drive the cutting wire to circulate after rotation, so that the cutting wire cuts the workpiece, and the cleaning cover is used to clean the cutting wire inside; A pickling frame is provided on the machine tool body and is located directly below the cleaning cover. The pickling frame is used to receive the cleaning liquid flowing out of the cleaning cover. The wire reel is located in the pickling frame. An acid inlet is provided at the bottom of the pickling frame. The acid inlet is used to provide acid liquid into the pickling frame so that the acid liquid soaks the cutting wire on the wire reel and reacts with the oxide layer on the cutting wire.

[0008] For example, in a wire cutting machine provided by at least one embodiment of the present disclosure, the cleaning cover is U-shaped and arranged vertically, and has a discharge port at the bottom of the cleaning cover, which faces the pickling frame and is used to discharge the cleaning liquid in the cleaning cover to the pickling frame.

[0009] For example, in a wire cutting machine provided by at least one embodiment of the present disclosure, an annular scraper block for the cutting wire to pass through is provided on the top of the cleaning cover, and the annular scraper block is used to scrape off the cleaning liquid on the cutting wire. The material of the annular scraper block is one of polytetrafluoroethylene, ceramic or cemented carbide.

[0010] For example, in a wire cutting machine provided by at least one embodiment of the present disclosure, the wire reel axis is arranged horizontally, and a splash guard is detachably provided on the top of the pickling frame, and the splash guard is arranged directly above the wire reel.

[0011] For example, in a wire cutting machine provided by at least one embodiment of the present disclosure, the inner wall of the splash guard is arc-shaped, an acid channel is provided at the central axis of the wire tube, and the side wall of the wire tube has several groups of acid flow outlets covered by the splash guard, several groups of the acid flow outlets are connected to the acid channel and are arranged at intervals along the central axis of the wire tube, and one group of the acid flow outlets is arranged circumferentially along the outer circumference of the wire tube.

[0012] For example, in a wire cutting machine provided in at least one embodiment of the present disclosure, a filter screen is detachably provided on the machine body. The filter screen is semicircular and is located in the pickling frame and below the wire drum. The filter screen is used to filter impurities generated by the reaction of acid and the cutting wire.

[0013] For example, in a wire cutting machine provided by at least one embodiment of the present disclosure, the top height of the wire tube is higher than the top surface height of the pickling frame, guide blocks are provided at both ends of the pickling frame, the guide blocks have arc-shaped slide grooves, and the two ends of the filter screen are respectively slidably arranged in the two arc-shaped slide grooves.

[0014] For example, in a wire cutting machine tool provided by at least one embodiment of the present disclosure, the wire drum axis is arranged horizontally, the pickling frame is rotatably connected to a filter anti-splash net drum, the inner wall of the filter anti-splash net drum forms a gap with the outer wall of the wire drum, and a scraper is detachably provided on the machine tool body, the scraper is located in the gap and abuts against the inner wall of the filter anti-splash net drum; The filter anti-splash net cylinder is configured to allow a portion of the filter anti-splash net cylinder to be exposed to the acid liquid surface after rotation, so that the scraper can scrape off the impurities on the inner wall of the filter anti-splash net cylinder that are exposed to the acid liquid surface onto the scraper.

[0015] For example, in a wire cutting machine provided by at least one embodiment of the present disclosure, the scraper is L-shaped, the length direction of the scraper is horizontal, the scraper has a horizontal scraping part and a vertical blocking part, the horizontal scraping part abuts against the inner wall of the filter splash-proof net cylinder, and the vertical blocking part is used to block impurities scraped off by the horizontal scraping part.

[0016] For example, in a wire cutting machine provided by at least one embodiment of the present disclosure, the scraper is arranged on the machine body along a horizontal sliding manner, and the scraper is configured to be removed from the machine body after sliding.

[0017] The beneficial effects of the embodiments of the present disclosure are: 1. Comprehensive and uniform pickling: Passing acid into the pickling frame can make the cutting wire on the wire drum completely immersed in the acid. Regardless of high-speed or low-speed wire running, the two speeds of the wire drum can ensure that the cutting wire on it can ensure that the acid can work for a long time, ranging from a few minutes to more than ten minutes; In addition, during the immersion process, the position of the cutting wire is constantly changing, which can ensure that the acid is in full contact with all parts of the cutting wire, avoid the close arrangement of adjacent cutting wires, resulting in incomplete removal of the oxide layer, and thus affecting the dimensional accuracy of the workpiece in subsequent processing.

[0018] 2. Timely cleaning to achieve non-stop processing: The wire drum drives the cutting wire to circulate. During the circulation process, the cutting wire passes through the pickling frame and the cleaning cover. The cleaning cover sprays cleaning liquid to the cutting wire passing through it, washes off the acid in time, and finally collects it back into the pickling frame just below the cleaning cover, which is convenient for the cutting wire to directly carry out subsequent processing operations and can avoid splashing of the cleaning liquid everywhere, thereby improving the overall work continuity and maintaining a good working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a wire cutting machine tool in one embodiment of the present disclosure; Figure 2 for Figure 1 A diagram showing the coordination of the pickling frame and the cleaning cover in the embodiment of the present invention; Figure 3 for Figure 1 A schematic diagram of the structure of the cleaning cover in the embodiment of FIG. Figure 4 for Figure 1 A cross-sectional view of a pickling frame in an embodiment of the present invention; Figure 5 for Figure 2 Enlarged view of part A in the middle; Figure 6 A diagram showing the coordination of a pickling frame and a splash shield in another embodiment of the present disclosure; Figure 7 for Figure 6 A cross-sectional view of a pickling frame in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a filter screen in another embodiment of the present disclosure; Fig. 9 for Figure 8 A schematic structural diagram of a guide block in an embodiment of the present invention; Fig.10 for Figure 8 A cross-sectional view of a pickling frame in an embodiment of the present invention; Fig.11 for Fig. 9 Enlarged view of middle part B; Fig.12 for Fig.10 Enlarged view of middle C; Fig.13 It is a schematic structural diagram of a filter splash-proof net cylinder in another embodiment of the present disclosure; Fig.14 for Fig.13 Enlarged view of the middle D part; Fig.15 for Fig.13 A cross-sectional view of a pickling frame in an embodiment of the present invention; Fig.16 for Fig.15 Enlarged view of middle E part; Fig.17 for Figure 1Schematic diagram of the structure of the machine tool body in the embodiment.

[0021] In the figure: 1, machine tool body, 2, wire cylinder, 201, acid channel, 202, acid flow outlet, 3, cleaning cover, 301, discharge port, 4, cutting wire, 5, pickling frame, 501, acid inlet, 6, annular scraper block, 7, splash shield, 8, filter screen, 9, guide block, 901, arc-shaped slide groove, 10, filter splash screen cylinder, 11, interval, 12, scraper, 1201, horizontal scraper part, 1202, vertical stopper part. DETAILED DESCRIPTION

[0022] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0023] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0024] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0025] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0027] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] like Figure 1~Figure 4 , Fig.17 As shown, it shows a wire cutting machine tool in one embodiment of the present disclosure, the cleaning hood 3 and the pickling frame 5 cooperate for cleaning, when the machine tool has been working for a period of time, it is found that there is an oxide layer on the cutting wire 4 that needs to be processed, then the acid inlet 501 at the bottom of the pickling frame 5 is opened to allow acid to enter and soak the cutting wire 4 on the wire drum 2, and then in the process of the wire drum 2 rotating and driving the cutting wire 4 to circulate, the acid reacts chemically with the oxide layer on the surface of the cutting wire 4 to remove the oxide layer, thereby ensuring the quality of the subsequent cutting workpiece, and the cleaning hood 3 plays the role of cleaning the acid on the cutting wire 4 after pickling, while it is arranged directly above the pickling frame 5, and thus the cleaning liquid can be recovered in the pickling frame 5 during cleaning, to avoid splashing of the cleaning liquid everywhere, and then the cutting wire 4 is further circulated in the machine tool body 1 driven by the rotation of the wire drum 2, completing the processing operation to achieve continuous operation of oxide layer removal and cleaning, and ensuring that the cutting wire 4 is always in a good working condition.

[0029] Compared with the traditional mechanical processing method, if the operation is improper, the cutting wire 4 is easy to break, and it is difficult to ensure the uniformity of the oxide layer removal. The wire cutting machine adopts the pickling method, by soaking the circulating cutting wire 4 in acid, and using chemical reaction to evenly remove the oxide layer, reducing the risk of the cutting wire 4 breaking, and improving the uniformity of the oxide layer removal; in addition, it also improves the shortcomings of general chemical pickling. Traditional pickling is generally not performed on the machine tool, but directly processes the cutting wire 4 wound on the wire reel, soaks it in pickling and cleans it, and then processes the wire. The present invention directly soaks and pickles the cutting wire 4 on the wire drum 2 during the circulation process, which can effectively and comprehensively cover most of the cutting wire 4, and because the wire speed is not fast, the pickling time can also be guaranteed, and the pickling effect can be evenly exerted.

[0030] It is worth noting that in order to extend the service life of the components and prevent the wire drum 2 and the pickling frame 5 from being in contact with the acid for a long time, which will cause corrosion, the acid can be used in the following ways: dilute hydrochloric acid with a concentration of 10%-20%, and sulfuric acid solution with a concentration of 5%-10%. This acid has a good dissolving effect on the oxide layer of the cutting wire 4, and the corrosion is relatively small; and the cutting wire 4 will not easily produce an oxide layer, and it will only occur under high temperature and long-term working conditions. When pickling is not required, the acid inlet 501 can be closed to prevent the acid from entering the pickling frame 5, and the wire drum 2 can rotate and work normally.

[0031] Specifically, the machine tool body 1 serves as the supporting structure of the entire machine tool, and provides installation positions for components such as the wire drum 2, the cleaning cover 3, and the pickling frame 5 to ensure the relative position relationship between the components; the wire drum 2 usually rotates with a horizontal axis as the rotating axis at the rear side of the principle cutting line working position of the machine tool body 1, and drives the cutting wire 4 to circulate through its own rotation, thereby realizing the circular motion of the cutting wire 4 on the machine tool body 1 to meet the needs of cutting the workpiece; the cutting wire 4 (molybdenum wire) is circulated and arranged on each guide wheel and conductive block of the machine tool body 1, and is wound around the wire drum 2, passes through the cleaning cover 3, and then circulates under the drive of the wire drum 2. During the cutting process, it serves as a tool electrode, and a pulse current is passed between the workpiece and the workpiece for cutting processing. At the same time, when pickling is required, it is treated with the acid in the pickling frame 5 and the cleaning cover 3 , to ensure its own working performance; the cleaning cover 3 is welded on the machine tool body 1 and is located above the wire drum 2. The nozzle on its inner wall connected to the internal pipeline of the machine tool body 1 is used to spray cleaning liquid (cleaning water) into the cleaning cover 3 to clean the cutting wire 4. The cleaning cover 3 can prevent liquid splashing during the cleaning process and protect the surrounding environment of the machine tool. Further, the pickling frame 5 is installed directly below the cleaning cover 3 to ensure that part or all of the wire drum 2 is located in the pickling frame 5, and then when the acid is introduced, it is ensured that the cutting wire 4 of the wire drum 2 is immersed therein, and a special area for collecting the fallen cleaning liquid can be reserved in the position directly below the cleaning cover 3 in the pickling frame 5, that is, a partition plate welded to the pickling frame 5 is divided into two areas, one area is connected to the acid inlet 501, and the other area is located directly below the cleaning cover 3.

[0032] like Figure 3 As shown, in some examples, the cleaning hood 3 is arranged vertically. This installation method can make the cleaning liquid in the cleaning hood 3 naturally gather to the bottom of the cleaning hood 3 under the action of gravity, effectively blocking the cleaning liquid that may splash during the cleaning process, and then the discharge port 301 at the bottom faces the pickling frame 5, so that the cleaning liquid can flow smoothly and efficiently into the pickling frame 5 through the discharge port 301. This design avoids the accumulation of cleaning liquid in the cleaning hood 3, ensures that the cleaning function of the cleaning hood 3 on the cutting wire 4 is continuously effective, and also collects the cleaning liquid that might otherwise be wasted, and can also be processed and recycled.

[0033] The U-shaped design enables the nozzles connected to the internal pipeline to face the cutting wire 4 in all directions, thereby improving the cleaning effect.

[0034] By rationally designing the shape of the cleaning cover 3 and the position of the discharge port 301, the cleaning liquid discharge path is simple and direct, without the need for additional complex pipes or pumping systems to transfer the cleaning liquid, thus simplifying the structure of the machine tool and taking up less space.

[0035] like Figure 5 As shown, in some examples, an annular scraper block 6 is arranged on the top of the cleaning hood 3. When the cutting wire 4 passes through the annular scraper block 6, the cleaning liquid attached to the surface of the cutting wire 4 can be scraped off. This avoids the cutting wire 4 carrying too much cleaning liquid out of the cleaning hood 3, reduces the risk of rust or short circuit of components due to liquid residue, and the annular shape is more convenient for early installation on the top of the cleaning hood 3 by bolts.

[0036] The annular scraper block 6 can be made of polytetrafluoroethylene, ceramic or hard alloy. Polytetrafluoroethylene has an extremely low friction coefficient, which can effectively scrape off the cleaning liquid while minimizing the wear on the cutting wire 4. It has strong chemical stability and good corrosion resistance, and is suitable for various acidic and alkaline cleaning liquids. The ceramic material has high hardness and good wear resistance, and can scrape off the cleaning liquid stably for a long time. It also has stable chemical properties and is not easy to react with the cleaning liquid. Hard alloy has high hardness and high strength, and can withstand the friction of the cutting wire 4 at high speed. While ensuring the scraping effect, it prolongs the service life of the annular scraper block 6. The selection of different materials can be adjusted according to the actual use scenarios and needs, which improves the applicability of the equipment.

[0037] like Figure 6~Figure 7 As shown, in some examples, the acid in the pickling frame 5 may splash out during the rotation of the wire drum 2 due to the cutting wire 4 or the wire drum 2, so the splash cover 7 is arranged directly above the wire drum 2, which can effectively block the splash of the acid and prevent the acid from splashing onto other parts of the machine tool, thereby ensuring the service life of other parts.

[0038] The splash shield 7 can be arched, which can better cover the space above the wire drum 2. At the same time, the arched structure has a certain strength, can withstand occasional impact of the acid, and is not easy to form liquid accumulation on the surface. After the acid splashes on it, it can quickly slide back into the pickling frame 5; or it can be a square flat plate, which can be customized according to the size of the wire drum 2 and the pickling frame 5. It is easy to install and can effectively cover the area directly above the wire drum 2 to prevent the acid from splashing upwards.

[0039] As for its detachable form, a bolt connection type can be adopted, screw holes are opened at corresponding positions of the splash shield 7 and the top of the pickling frame 5, and the splash shield 7 is fixed to the pickling frame 5 by bolts, or a hinge connection can be adopted, and the opening and closing form is also convenient for workers to operate.

[0040] It is worth mentioning that during the actual operation, the wire reel 2 will move horizontally to facilitate the wire feeding operation, while the wire routing route under the entire machine tool will not change, which may interfere with the splash guard 7 that moves with the wire reel 2. To avoid the above situation, the length of the splash guard 7 must be specified in advance to avoid interference with the molybdenum wire or other components.

[0041] like Figure 7 As shown, in some examples, for high-speed wire-cutting machines, in order to reduce the splashing and loss of acid caused by the high-speed rotation of the wire drum 2, the acid flow outlet 202 on the side wall of the wire drum 2 and a small amount of acid in the pickling frame 5 can be used. Specifically, since one group of acid flow outlets 202 are arranged along the circumference of the outer periphery of the wire drum 2, and multiple groups of acid flow outlets 202 are arranged at intervals of 11 along the central axis of the wire drum 2, the acid can be evenly sprinkled on various parts of the cutting wire 4 wound on the wire drum 2 during the rotation of the wire drum 2. Even if the wire drum 2 rotates at a high speed and splashes acid upward, it will rebound back to the side wall of the wire drum 2 under the action of the splash shield 7 with an arc-shaped inner wall, and act on the cutting wire 4. Therefore, the cutting wire 4 at various parts can receive the acid sprayed from the acid flow outlets 202 at different positions. Compared with the form of complete immersion, the use of acid is saved, and the duration and effect of the acid are also guaranteed.

[0042] Specifically, the acid can be pumped into the acid channel 201 using a pipeline and a small liquid pump. The pipeline is connected to the acid channel 201 at the central axis of one end of the wire drum 2 and can be the same acid box as the acid inlet 501.

[0043] like Figure 8~Figure 12 As shown, in some examples, after multiple picklings, it is found that a lot of impurities generated by pickling remain in the pickling frame 5, such as oxide scale debris, metal particles generated by molybdenum wire wear, etc. The pickling frame 5 is complicated to disassemble, so a filter 8 that is easy to disassemble is selected to collect the impurities generated by pickling, and the impurities are processed through a quick-release filter 8.

[0044] Specifically, a slot is set on the inner wall of the pickling frame 5 corresponding to the edge of the filter screen 8, and the edge of the filter screen 8 is designed to be a protruding structure matching the slot. During installation, align the protrusion on the edge of the semicircular filter screen 8 with the slot on the inner wall of the pickling frame 5, and gently push it in to complete the installation, or use bolts to connect.

[0045] The semicircular shape is mainly used to wrap around the bottom of the wire tube 2 to collect impurities and facilitate manual installation and disassembly to prevent the closed filter screen 8 from being unable to be quickly removed from the bottom of the wire tube 2.

[0046] like Figure 8~Figure 12As shown, in some examples, the top point height of the wire tube 2 is higher than the top surface height of the pickling frame 5. Such a design is conducive to the filter screen 8 sliding away from the bottom of the wire tube 2 along the annular path under the guidance of the guide block 9, and then, on the premise of removing the splash cover 7, the worker can quickly take and remove the filter screen 8, rather than completing the above action inside the narrow pickling frame 5. When cleaning the impurities intercepted on the filter screen 8, it is only necessary to slide the filter screen 8 out along the arc-shaped slide groove 901, without the need for complicated operations or tools, thereby greatly improving the maintenance efficiency. Moreover, the arc-shaped slide groove 901 can guide the installation position of the filter screen 8, ensure its stability in the pickling frame 5, and effectively filter impurities in the acid solution.

[0047] During installation, the worker holds the filter screen 8 and, at the top of the pickling frame 5, aligns the two ends of the filter screen 8 with the arc-shaped slide grooves 901 on the guide blocks 9 at both ends, aligns the edge of the filter screen 8 with the edge of the slide groove, and then directly slides the filter screen 8 along the arc-shaped slide groove 901 into the pickling frame 5 until the filter slides under the wire tube 2 and enters the pickling frame 5. The installation is completed, and the disassembly is the opposite.

[0048] Specifically, the guide blocks 9 are welded at both ends of the pickling frame 5, that is, at positions corresponding to the two ends of the wire tube 2. Each guide block 9 is processed with an arc-shaped slide groove 901, which is preferably semicircular and adapted to the filter screen 8, or the filter screen 8 corresponds to an elastic technical plate to adapt to the form of the arc-shaped slide groove 901. The function of the guide block 9 is to provide the filter screen 8 with an arc-shaped slide groove 901 for installation and sliding, and to provide a stable guiding effect.

[0049] like Figure 13~Figure 16 As shown, in some examples, after multiple pickling, it is found that a lot of impurities generated by pickling are retained in the pickling frame 5, such as oxide scale debris, metal particles generated by molybdenum wire wear, etc., and it is complicated to disassemble the pickling frame 5, so a filtering splash-proof mesh cylinder 10 is coaxially arranged with the horizontal wire tube 2 and rotatably connected to the pickling frame 5, and its cover is arranged on the outer periphery of the wire tube 2 to form a gap 11 with the outer wall of the wire tube 2, and then during the pickling process, the acid liquid level is controlled not to be higher than the top of the wire tube 2, that is, the filtering splash-proof mesh cylinder 10 located above the wire tube 2 and above the acid liquid level plays a splash-proof role, even if a very small amount of acid passes through the filtering splash-proof mesh cylinder 10, it will then fall back into the pickling frame 5 under its own gravity, and the filtering splash-proof mesh cylinder 10 located below the wire tube 2 and below the acid liquid level plays a normal filtering role, retaining impurities on its inner wall, that is to say, when the wire tube 2 rotates normally, it does not rotate, and of course the rotation will not affect it.

[0050] Further consideration is given to facilitate the rapid removal of impurities on the inner wall of the filter anti-splash net cylinder 10, rather than dismantling the filter anti-splash net cylinder 10 (because this method has complicated steps), a scraper 12 is directly and detachably arranged in the interval 11. The scraper 12 cooperates with the rotation of the filter anti-splash net cylinder 10 to scrape off the impurities on the inner wall of the filter anti-splash net cylinder 10 above the wire tube 2 that are exposed on the acid liquid surface and onto the scraper 12.

[0051] Specifically, the filter splash-proof mesh cylinder 10 is a cylindrical structure, whose inner diameter is slightly larger than the outer diameter of the wire cylinder 2 to form a gap 11 between the two, and is made of a corrosion-resistant material with a certain strength, such as a stainless steel wire mesh. Its two ends are rotatably connected to the pickling frame 5 through rotating connecting parts such as bearings. Bearing seats can be installed at corresponding positions at both ends of the pickling frame 5, and the shaft necks at both ends of the filter splash-proof mesh cylinder 10 are inserted into the bearings in the bearing seats, so that the filter splash-proof mesh cylinder 10 can rotate freely relative to the pickling frame 5; and the scraper 12 is in the gap 11 between the filter splash-proof mesh cylinder 10 and the wire cylinder 2, and its two ends can pass through the gap 11 respectively, and similarly to the filter splash-proof mesh cylinder 10, it is inserted into the groove at the corresponding position of the end of the pickling frame 5 to fix the working state, and can be quickly disassembled using bolts and other parts in the groove.

[0052] like Figure 13~Figure 16 As shown, in some examples, the horizontal scraping portion 1201 of the scraper 12 abuts against the inner wall of the filter anti-splash net cylinder 10, and stably fits the horizontal inner wall curved surface of the filter anti-splash net cylinder 10. When the filter anti-splash net cylinder 10 rotates, impurities attached to its inner wall can be effectively scraped off and blocked by the vertical blocking portion 1202 on the scraper 12 away from the inner wall of the filter anti-splash net cylinder 10, thereby preventing the impurities from being splashed back into the acid again due to the rotation of the filter anti-splash net cylinder 10 or external airflow, or scattered to other parts of the machine tool.

[0053] Therefore, it is designed in an L shape, has a simple structure, and is easy to manufacture and install.

[0054] like Figure 13~Figure 16 As shown, in some examples, the scraper 12 can be slid horizontally along the machine tool body 1 and removed, which greatly facilitates the maintenance and cleaning of the scraper 12 itself and the filter splash-proof net cylinder 10. When it is necessary to thoroughly clean the impurities accumulated on the scraper 12, or to inspect and replace the scraper 12 itself, the operator can easily slide and remove the scraper 12 from the machine tool body 1.

[0055] Specifically, both ends of the scraper 12 pass through the grooves at the corresponding positions of the ends of the pickling frame 5, so as to expose a part for workers to operate, such as installation or removal. In order to fix its working position, bolts and other components in the groove can still be used.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. A wire cutting machine tool, characterized in that: include: Machine tool body (1); A wire drum (2), the wire drum (2) being rotatably arranged on the machine tool body (1); A cleaning cover (3), the cleaning cover (3) being arranged on the machine tool body (1) and located on one side of the wire drum (2); a cutting wire (4), the cutting wire (4) being circulated on the machine tool body (1), being wound on the wire drum (2), and passing through the cleaning cover (3); the wire drum (2) being configured to drive the cutting wire (4) to circulate after rotating so that the cutting wire (4) cuts a workpiece; and the cleaning cover (3) is used to clean the cutting wire (4) inside; A pickling frame (5), the pickling frame (5) being arranged on the machine tool body (1) and being located directly below the cleaning cover (3); the wire reel (2) being located in the pickling frame (5); the pickling frame (5) being used to allow acid to soak the cutting wire (4) on the wire reel (2) and to receive the cleaning liquid flowing out of the cleaning cover (3).

2. A wire cutting machine tool according to claim 1, characterized in that: The cleaning cover is arranged vertically, and a discharge port (301) is provided at the bottom of the cleaning cover (3). The discharge port (301) faces the pickling frame (5) and is used to discharge the cleaning liquid in the cleaning cover (3) to the pickling frame (5).

3. A wire cutting machine tool according to claim 2, characterized in that: An annular scraper (6) is provided on the top of the cleaning cover (3) for the cutting wire (4) to pass through, and the annular scraper (6) is used to scrape off the cleaning liquid on the cutting wire (4).

4. A wire cutting machine tool according to claim 1, characterized in that: The axis of the wire drum (2) is arranged horizontally, and a splash guard (7) is detachably provided on the top of the pickling frame (5), wherein the splash guard (7) is arranged directly above the wire drum (2).

5. A wire cutting machine tool according to claim 4, characterized in that: The inner wall of the splash shield (7) is arc-shaped, the central axis of the wire tube (2) is provided with an acid liquid channel (201), the side wall of the wire tube (2) is provided with a plurality of groups of acid liquid flow openings (202) covered by the splash shield (7), the plurality of groups of acid liquid flow openings (202) are connected to the acid liquid channel (201), and are arranged at intervals along the central axis of the wire tube (2), and one group of the acid liquid flow openings (202) is arranged along the circumference of the outer periphery of the wire tube (2).

6. A wire cutting machine tool according to claim 4, characterized in that: The machine tool body (1) is detachably provided with a filter screen (8), the filter screen (8) being semicircular in shape and located inside the pickling frame (5) and below the wire drum (2), and being used for filtering impurities generated by the reaction of the acid liquid with the cutting wire (4).

7. A wire cutting machine tool according to claim 6, characterized in that: The top height of the wire drum (2) is higher than the top surface height of the pickling frame (5), guide blocks (9) are provided at both ends of the pickling frame (5), the guide blocks (9) have arc-shaped slide grooves (901), and the two ends of the filter screen (8) are respectively slidably arranged in the two arc-shaped slide grooves (901).

8. The wire cutting machine tool according to claim 1, characterized in that: The axis of the wire drum (2) is arranged horizontally, the pickling frame (5) is rotatably connected to a filter anti-splash net drum (10), the inner wall of the filter anti-splash net drum (10) and the outer wall of the wire drum (2) form a gap (11), and the machine tool body (1) is detachably provided with a scraper (12), the scraper (12) is located in the gap (11) and abuts against the inner wall of the filter anti-splash net drum (10); The filter anti-splash net cylinder (10) is configured to rotate so that a portion of the filter anti-splash net cylinder (10) is exposed to the acid liquid surface, so that the scraper (12) scrapes off impurities on the inner wall of the portion of the filter anti-splash net cylinder (10) exposed to the acid liquid surface onto the scraper (12).

9. A wire cutting machine tool according to claim 8, characterized in that: The scraper (12) is L-shaped, the length direction of the scraper (12) is horizontal, the scraper (12) comprises a horizontal scraping portion (1201) and a vertical blocking portion (1202), the horizontal scraping portion (1201) abuts against the inner wall of the filter anti-splash net cylinder (10), and the vertical blocking portion (1202) is used to block impurities scraped off by the horizontal scraping portion (1201).

10. The wire cutting machine tool according to claim 8, characterized in that: The scraper (12) is arranged on the machine tool body (1) in a horizontal sliding manner, and the scraper (12) is configured to be removed from the machine tool body (1) after sliding.

Images