Automatic guide rail lubricating structure based on numerical control machine tool and lubricating method thereof

Abstract

The invention discloses an automatic guide rail lubricating structure based on a numerically-controlled machine tool and a lubricating method thereof, and relates to the technical field of numerically-controlled machine tools. The automatic guide rail lubricating structure comprises a numerically-controlled machine tool machining table, guide rail seats are symmetrically mounted at the top of the numerically-controlled machine tool machining table, and lubricating oil storage grooves are formed in the inner centers of the guide rail seats; the top of the guide rail base is provided with a movable sliding block in an embedded mode, and the top of the guide rail base is provided with a lubricating oil scraping and finishing assembly. According to the device, the interval adjusting grooves are formed in the inner wall of the scraping and trimming frame, the scraping and trimming frame slides in the guide sliding grooves through the guide pulleys and moves in the horizontal direction along with the movable sliding blocks in the moving process of the movable sliding blocks, and the outer surface of the guide rail base is scraped and trimmed, so that lubricating oil is more uniform; when the lubricating oil scraping assembly moves, the scraping rubber plate shakes while making contact with the outer surface of the guide rail base for lubrication, the extrusion spring buffers the conduction impact force in the horizontal direction, the guide rail is evenly lubricated, and the smoothness of the sliding block in the moving process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, and in particular to an automatic lubrication structure for a guide rail based on a numerically controlled machine tool and a lubrication method thereof. Background Art

[0002] CNC machine tools are automated machine tools equipped with a program control system and are widely used in the field of mechanical processing. In CNC machine tools, guide rails are important components of linear motion, which play the role of moving and transmitting processed parts. The degree of lubrication between the guide rails and the sliders determines the mechanical conversion efficiency of the guide rails. After long-term use, the surface of the guide rails will become dry, resulting in increased friction, and the sliders cannot move smoothly. The guide rails need to be lubricated in time.

[0003] The defects of the guide rail automatic lubrication structure in the prior art are:

[0004] 1. Patent document JP2016083763A discloses a machine tool guide mechanism and a machine tool, "providing a machine tool guide mechanism and a machine tool with high load, low friction, high guiding accuracy and high attenuation performance. The machine tool guide mechanism (30) has a moving part (31) that moves relative to each other and a first and a second guide rail (141, 142) as a guiding part, and an oil hydrostatic guide is provided between the moving part (31) and the first and the second guide rail (141, 142). "The machine tool guide mechanism cannot detect the lubrication state of the guide rail and cannot automatically lubricate according to the lubrication state of the outer surface of the guide rail.

[0005] 2. Patent document KR101795157B1 discloses a guide mechanism of a machine tool and a machine tool. "The guide mechanism (30) of the machine tool has a relatively movable part (31) and first and second guide rails (141142) of the guide part. A static pressure guide mechanism (40) and a sliding guide mechanism (50) are formed between the movable part (31) and the first and second guide rails (141142). The static pressure guide mechanism (40) and the parts (42) around the static pressure chamber (41) and (42) provide lubricating oil for the static pressure chamber (41). " The guide mechanism does not have a filtering structure. When lubricating, the oil residue in the lubricating oil is easy to cause the static pressure chamber to be blocked.

[0006] 3. Patent document JP4512831B2 discloses a sliding direct-acting guide device. "Even if the prior art is applied to the sliding direct-acting guide of a machine tool having a sliding surface with parallel planes and a surface pressure acting on the sliding surface, it is difficult to prevent metal contact between the sliding surfaces by forming a fluid lubricating film to achieve a low sliding friction coefficient. Lubricating oil is supplied to the gap between the sliding surfaces 1 and 2 of each of a set of relative guide components 3 and 4 to slide relative to each other." This guide device cannot lubricate the guide rail evenly, and the lubrication effect is poor. Uneven lubrication cannot guarantee the smoothness of the movement of the slider.

[0007] 4. Patent document CN213164436U discloses a CNC machine tool guide rail lubrication structure, "including a machine tool body and a guide rail body fixed on the upper end of the machine tool body, a slider is slidably connected to the guide rail body, an oil cylinder is sealed and fixedly connected to the middle of the upper end of the slider, and the oil cylinder is an inner square and outer circle structure, and an oil tank is fixedly connected to the upper end of the slider and on one side of the oil cylinder. The utility model can rotate the thick gear that has been separated from the thin gear according to the length of the guide rail or the length to be lubricated, and under the limit condition, drive the screw and the piston plate to move up, and absorb oil through The tube sucks in sufficient lubricating oil, the spring device is tightened, and then relaxes when the thick gear and the thin gear are meshed. The friction between the thin gear and the friction groove is used to slowly rotate the spring device, driving the screw and the piston plate to slowly move down. The lubricating oil falls to the middle of the two inclined surfaces through the oil outlet pipe and is evenly covered along the inclined surfaces. No manual application is required, which saves manpower and avoids spilling lubricating oil on the machine tool to cause pollution. "The guide rail lubrication structure cannot clean the lubricating oil impurities inside the guide rail body, which is not convenient for lubrication and shortens the service life of the lubricating structure. Summary of the invention

[0008] The object of the present invention is to provide a guide rail automatic lubrication structure and a lubrication method based on a numerically controlled machine tool, so as to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic lubrication structure for guide rails based on CNC machine tools, comprising a CNC machine tool processing table, a guide rail seat and a lubricating oil scraping assembly, the guide rail seat being symmetrically installed on the top of the CNC machine tool processing table, the guide rail seat being provided with a lubricating oil filling port on the top, a lubricating oil storage groove being provided at the inner center position of the guide rail seat, and the lubricating oil storage groove being communicated with the lubricating oil filling port, a movable slider being embedded and installed on the top of the guide rail seat, a horizontal clamping groove being provided on the outer side of the movable slider, a lubricating oil scraping assembly being provided on the top of the guide rail seat, the lubricating oil scraping assembly being used for scraping the lubricating oil on the surface of the guide rail seat, the lubricating oil scraping assembly comprising a scraping frame, the scraping frame being embedded and installed on the top of the guide rail seat, a horizontal clamping column being installed on the outer side of the scraping frame, and the horizontal clamping column cooperates with the horizontal clamping groove.

[0010] Preferably, a mounting positioning plate is installed on the outer side of the CNC machine tool processing table, and the mounting bolts penetrate the top of the mounting positioning plate to achieve a stable connection between the CNC machine tool processing table and the inner side of the CNC bed.

[0011] Preferably, a limit block is installed on the top of the guide rail seat, and the limit block is used to limit the lubricating oil scraper assembly, the top of the lubricating oil filling port is connected to a lubricating oil delivery pipe, and the lubricating oil delivery pipe is connected to the output end of an external oil supply device, a liquid level sensor is installed on the inner wall of the lubricating oil storage tank, and the liquid level sensor is used to detect the amount of oil in the lubricating oil storage tank, the outer side of the guide rail seat is symmetrically provided with guide grooves, the outer side of the guide rail seat is symmetrically provided with lubricating oil flow holes, and the lubricating oil flow holes are symmetrically provided with the lubricating oil storage tank The lubricating oil flow hole is located above the guide slide groove, a mounting frame is installed on the inner side of the lubricating oil flow hole, an oil residue filter is installed on the inner side of the mounting frame, a mounting groove one is opened on the top wall of the lubricating oil flow hole, a liquid flow rate sensor is installed on the inner side of the mounting groove one, and the liquid flow rate sensor is used to detect the flow rate of the lubricating oil flowing through the lubricating oil flow hole, an oil residue collection box is installed on the outer end of the guide rail seat, and the oil residue collection box is matched with one end of the lubricating oil storage tank, and an operating cover is installed on the top of the oil residue collection box through a hinge.

[0012] Preferably, a mounting seat is installed on the top of the movable slider, and a connecting hole is opened on the top of the mounting seat.

[0013] Preferably, a groove is provided on the inner wall of the scraping frame, a fixed seat is installed on the inner side of the groove, a guide pulley is rotatably installed on the inner side of the fixed seat, and the guide pulley slides on the inner side of the guide groove, and a mounting groove 2 is provided on the inner side of the top of the scraping frame, an electric telescopic rod is installed on the inner wall of the mounting groove 2, a connecting plate is installed on the output end of the electric telescopic rod, and a detector is installed on the bottom of the connecting plate, and the detector is used to detect the amount of lubricating oil on the outer wall of the guide rail seat.

[0014] Preferably, a spacing adjustment groove is opened on the inner wall of the scraping frame, a micro damper is installed on the inner side of the spacing adjustment groove, an extrusion spring is arranged on the outer side of the micro damper, a scraping rubber plate is installed on the other end of the extrusion spring, and the scraping rubber plate is in contact with the outer side of the guide rail seat.

[0015] Preferably, a fixed plate is installed on the back of the CNC machine tool processing table, a heating box is installed on the top of the fixed plate, an air inlet pipe is installed on the outside of the heating box, an electric heating plate is installed on the inside of the heating box, a heat conductive wire is installed on the outside of the electric heating plate, a protective box is installed on the top of the heating box, a negative pressure fan is installed on the bottom wall of the protective box, the output end of the negative pressure fan is connected to an air supply and slag cleaning pipe, and the output end of the air supply and slag cleaning pipe is connected to the other end of the lubricating oil storage tank, a maintenance operation door is installed on the outside of the protective box through a hinge, and mounting sleeves are symmetrically installed on the inner wall of the protective box, and the mounting sleeves are located at the bottom end of the heating box.

[0016] Preferably, a transmission controller is installed on the outside of the CNC machine tool processing table, and the transmission controller is used to receive the output signals of the liquid level sensor, the liquid flow rate sensor and the detector. The output end of the transmission controller is connected to the machine tool control system, and the machine tool control system is used to control the operation of the guide rail automatic lubrication structure. The output end of the machine tool control system is connected to the oil supply equipment drive module, and the oil supply equipment drive module is used to drive the oil supply equipment. The output end of the machine tool control system is connected to the early warning module, and the early warning module is used to warn the background monitoring personnel.

[0017] Preferably, the detector is a surface humidity detector or a surface temperature detector.

[0018] Preferably, the working steps of the guide rail automatic lubrication structure are as follows:

[0019] S1. First, install the bolts through the top of the installation positioning plate to achieve a stable connection between the CNC machine tool processing table and the inner side of the CNC bed, assemble the moving slider and the lubricating oil scraper assembly, move the two sets of scrapers toward the moving slider and insert the horizontal clamping column into the inner side of the horizontal clamping groove, and the moving slider works on the guide rail seat to move in the horizontal direction;

[0020] S2. When the moving slider stops moving, the electric telescopic rod works to push the surface humidity detector downward so that the detection head of the surface humidity detector and the surface humidity of the guide rail seat are detected to detect the degree of use of the lubricating oil. When the surface humidity of the guide rail seat is lower than the preset minimum value, the transmission controller transmits a signal to the machine tool control system, and the machine tool control system controls the external oil supply equipment to work, and the lubricating oil enters the inside of the guide rail seat from the lubricating oil filling port through the lubricating oil delivery pipe and flows through the lubricating oil storage tank;

[0021] S3, the lubricating oil flows from the lubricating oil flow hole to the upper part of the outer surface of the guide rail seat after being filtered by the oil residue filter. When the moving slider is working, the scraping frame slides in the guide slide groove through the guide pulley and moves horizontally with the moving slider. During the movement of the scraping frame, the scraping rubber plate scrapes the outer surface of the guide rail seat to make the lubricating oil more uniform;

[0022] S4. The liquid level sensor detects the amount of lubricating oil in the lubricating oil storage tank. When the amount is lower than the preset value, the transmission controller transmits the signal to the machine tool control system. The machine tool control system controls the operation of the negative pressure fan. The negative pressure fan extracts the external gas through the air inlet pipe. The external gas is heated by the electric heating plate and the heat conducting wire when passing through the heating box. The heated gas enters the negative pressure fan through the pipeline, and finally enters the lubricating oil storage tank through the air supply and slag removal pipe to blow the residual slag at the bottom of the tank and outside the oil slag filter. The attached residual slag is blown into the oil slag collection box through the lubricating oil storage tank.

[0023] Preferably, in step S3, the following steps are also included:

[0024] S31, the oil residue filter screen filters impurities in the lubricating oil, and the filtered impurities are accumulated on the outside of the oil residue filter screen. The liquid flow rate sensor detects the flow rate of the lubricating oil flowing through the lubricating oil flow hole. When the flow rate value is less than a preset range, it indicates that the impurities cause the oil residue filter screen to be blocked. The liquid flow rate sensor transmits a signal to the transmission controller;

[0025] S32. When the lubricating oil scraper assembly moves, the scraper rubber plate contacts and lubricates the outer surface of the guide rail seat and will shake. The scraper rubber plate preliminarily buffers the impact force of the collision and squeezes the extrusion spring. The extrusion spring buffers the conductive impact force in the horizontal direction. The micro damper prevents the extrusion spring from causing the scraper rubber plate to shake continuously, thereby ensuring the stability of the lubricating oil scraper assembly when moving.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention installs a surface humidity detector at the bottom of the connecting plate, moves the two groups of scraping frames toward the direction close to the moving slider, and inserts the horizontal engaging column into the inner side of the horizontal engaging groove. The moving slider works on the guide rail seat to move in the horizontal direction. When the moving slider stops moving, the electric telescopic rod works to push the surface humidity detector downward so that the detection head of the surface humidity detector and the surface humidity of the guide rail seat are detected. When the surface humidity of the guide rail seat is lower than the preset minimum value, the transmission controller transmits the signal to the machine tool control system, detects the lubrication state of the guide rail seat and performs automatic lubrication to ensure the stability of the moving slider during operation.

[0028] 2. The present invention installs an installation frame on the inner side of the lubricating oil flow hole, and the machine tool control system controls the operation of the external oil supply equipment. The lubricating oil enters the guide rail seat from the lubricating oil filling port through the lubricating oil delivery pipe and flows through the lubricating oil storage tank. The lubricating oil is filtered by the oil residue filter and flows from the lubricating oil flow hole to the upper part of the outer surface of the guide rail seat. The oil residue filter filters impurities in the lubricating oil. The filtered impurities accumulate on the outside of the oil residue filter. The liquid flow rate sensor detects the flow rate of the lubricating oil flowing through the lubricating oil flow hole. When the flow rate value is less than the preset range, it indicates that the impurities cause the oil residue filter to be blocked. The guide rail seat is automatically lubricated and the impurities in the lubricating oil are filtered to avoid the adverse effects of impurities on the performance of the guide rail.

[0029] 3. The present invention provides a spacing adjustment groove on the inner wall of the scraper frame. When the movable slider moves, the scraper frame slides in the guide groove through the guide pulley and moves in the horizontal direction with the movable slider. During the movement of the scraper frame, the scraper rubber plate scrapes the outer surface of the guide rail seat to make the lubricating oil more uniform. When the lubricating oil scraper assembly moves, the scraper rubber plate contacts and lubricates the outer surface of the guide rail seat and generates shaking. The scraper rubber plate preliminarily buffers the collision impact force and squeezes the extrusion spring. The extrusion spring buffers the conducted impact force in the horizontal direction. The micro damper prevents the extrusion spring from driving the scraper rubber plate to shake continuously, thereby ensuring the stability of the lubricating oil scraper assembly during movement, and evenly lubricating the guide rail to improve the smoothness of the slider during movement.

[0030] 4. The present invention installs a heating box on the top of the fixed plate. The negative pressure fan runs to extract external air through the air inlet pipe. The external air is heated by the electric heating plate and the heat conducting wire when passing through the heating box. The heated gas enters the negative pressure fan through the pipeline and finally enters the lubricating oil storage tank through the air conveying and slag cleaning pipe to blow the residual slag at the bottom end and outside the oil slag filter. The attached residual slag is blown into the oil slag collection box through the lubricating oil storage tank, and the lubricating oil impurities inside the guide rail seat are cleaned to ensure the lubrication effect while extending the service life of the automatic lubrication structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal structure of the guide rail seat of the present invention;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable slider of the present invention;

[0034] Figure 4 It is a schematic diagram of the three-dimensional structure of the lubricating oil scraping assembly of the present invention;

[0035] Figure 5 It is a schematic diagram of the internal structure of the scraping frame of the present invention;

[0036] Figure 6 It is a schematic diagram of the enlarged structure of point A of the present invention;

[0037] Figure 7 It is a schematic diagram of the internal structure of the heating box of the present invention;

[0038] Figure 8 This is a diagram of the transmission controller system of the present invention.

[0039] Fig. 9 It is the work flow chart of the present invention.

[0040] In the figure: 1. CNC machine tool processing table; 2. Guide rail seat; 3. Moving slide block; 4. Lubricating oil scraping assembly; 5. Spacing adjustment slot; 6. Transmission controller; 7. Fixing plate; 8. Installation positioning plate; 9. Limit block; 10. Lubricating oil filling port; 11. Lubricating oil delivery pipe; 12. Lubricating oil storage tank; 13. Liquid level sensor; 14. Guide slide; 15. Lubricating oil flow hole; 16. Installation frame; 17. Oil residue filter; 18. Installation slot one; 19. Liquid flow rate sensor; 20. Oil residue collection box; 21. Operation cover; 22 , mounting seat; 23, connecting hole; 24, horizontal snap-in groove; 25, scraping frame; 26, horizontal snap-in column; 27, groove; 28, fixing seat; 29, guide pulley; 30, mounting slot 2; 31, electric telescopic rod; 32, connecting plate; 33, detector; 34, micro damper; 35, extrusion spring; 36, scraping rubber plate; 37, heating box; 38, air inlet pipe; 39, electric heating plate; 40, thermal wire; 41, protective box; 42, negative pressure fan; 43, air supply and slag removal pipe; 44, maintenance operation door; 45, installation sleeve. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection or a movable connection, or 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 the present invention can be understood according to specific circumstances.

[0044] See also Figure 1 and Figure 2 , an embodiment provided by the present invention: an automatic lubrication structure of a guide rail based on a numerically controlled machine tool and a lubrication method thereof;

[0045] It includes a CNC machine tool processing table 1, a guide rail seat 2 and a lubricating oil storage tank 12. The guide rail seat 2 is symmetrically installed on the top of the CNC machine tool processing table 1. A lubricating oil filling port 10 is opened on the top of the guide rail seat 2. A lubricating oil storage tank 12 is set at the inner center position of the guide rail seat 2, and the lubricating oil storage tank 12 is connected to the lubricating oil filling port 10. A limit block 9 is installed on the top of the guide rail seat 2, and the limit block 9 is used to limit the lubricating oil scraping assembly 4. A lubricating oil delivery pipe 11 is connected to the top of the lubricating oil filling port 10, and the lubricating oil delivery pipe 11 is connected to the output end of the external oil supply equipment. A liquid level sensor 13 is installed on the inner wall of the lubricating oil storage tank 12, and the liquid level sensor 13 is used to detect the oil amount in the lubricating oil storage tank 12. The outer side of the guide rail seat 2 is symmetrically opened. A guide slot 14 is provided, and lubricating oil flow holes 15 are symmetrically provided on the outer side of the guide rail seat 2, and the lubricating oil flow holes 15 are communicated with the lubricating oil storage tank 12, and the lubricating oil flow hole 15 is located above the guide slot 14, and a mounting frame 16 is installed on the inner side of the lubricating oil flow hole 15, and an oil residue filter 17 is installed on the inner side of the mounting frame 16, and a mounting slot 18 is provided on the top wall of the lubricating oil flow hole 15, and a liquid flow rate sensor 19 is installed on the inner side of the mounting slot 18, and the liquid flow rate sensor 19 is used to detect the flow rate of the lubricating oil flowing through the lubricating oil flow hole 15, and an oil residue collection box 20 is installed on the outer end of the guide rail seat 2, and the oil residue collection box 20 is matched with one end of the lubricating oil storage tank 12, and an operating cover plate 21 is installed on the top of the oil residue collection box 20 through a hinge;

[0046] The limit block 9 limits the moving position of the movable slider 3. The lubricating oil enters the interior of the guide rail seat 2 from the lubricating oil filling port 10 through the lubricating oil delivery pipe 11 and flows through the lubricating oil storage tank 12. The lubricating oil is filtered by the oil residue filter 17 and flows from the lubricating oil flow hole 15 to the upper part of the outer surface of the guide rail seat 2. The oil residue filter 17 filters the impurities in the lubricating oil. The filtered impurities accumulate on the outside of the oil residue filter 17. The liquid level sensor 13 detects the amount of lubricating oil in the lubricating oil storage tank 12. When the amount of lubricating oil is less than the preset minimum value, the negative pressure fan 42 runs to avoid To avoid wasting the oil in the lubricating oil storage tank 12, the installation groove 18 provides an installation position for the liquid flow rate sensor 19. The liquid flow rate sensor 19 detects the flow rate of the lubricating oil flowing through the lubricating oil flow hole 15. When the flow rate value is less than the preset range, it indicates that impurities cause the oil residue filter 17 to be blocked. The collecting port of the oil residue collection box 20 is slightly higher than the lubricating oil storage tank 12. The operating cover 21 seals and protects the top of the oil residue collection box 20, which is convenient for the staff to open the operating cover 21 to clean the oil residue and residual oil in the oil residue collection box 20.

[0047] See also Figure 1 , Figure 3 and Figure 4 , a guide rail automatic lubrication structure based on a CNC machine tool and a lubrication method thereof;

[0048] It includes a moving slider 3 and a lubricating oil scraping assembly 4. The moving slider 3 is embedded and installed on the top of the guide rail seat 2. A mounting seat 22 is installed on the top of the moving slider 3. A connecting hole 23 is provided on the top of the mounting seat 22. A horizontal engaging groove 24 is provided on the outer side of the moving slider 3. A lubricating oil scraping assembly 4 is provided on the top of the guide rail seat 2. The lubricating oil scraping assembly 4 is used to scrape the lubricating oil on the surface of the guide rail seat 2. The lubricating oil scraping assembly 4 includes a scraping frame 25. The scraping frame 25 is embedded and installed on the top of the guide rail seat 2. A horizontal engaging column 26 is installed on the outer side of the scraping frame 25, and the horizontal engaging column 26 cooperates with the horizontal engaging groove 24. A groove 27 is provided on the inner wall of the scraping frame 25. A fixed seat 28 is installed on the inner side of the groove 27. A guide pulley 29 is rotatably installed on the inner side of the fixed seat 28, and the guide pulley 29 slides on the inner side of the guide groove 14.

[0049] The processing parts are fixed on the mounting seat 22 through the connecting hole 23, and the two sets of scraping frames 25 are moved toward the direction close to the moving slider 3, and the horizontal engaging column 26 is inserted into the inner side of the horizontal engaging groove 24. When the moving slider 3 is working and moving, the scraping frame 25 slides in the guide groove 14 through the guide pulley 29 and moves horizontally with the moving slider 3, without causing any obstruction to the movement of the moving slider 3;

[0050] When the use range of the guide rail seat 2 in the CNC machine tool is small, the moving distance of the moving slider 3 is shortened, and only one group of scraping frames 25 is engaged and connected with the moving slider 3, and the other group of scraping frames 25 is moved to the outer end of the guide rail seat 2 and remains stationary or disassembled. One group of scraping frames 25 moves with the moving slider 3 and is lighter. The moving weight attached to the moving slider 3 is reduced when it works, and the working effect is better.

[0051] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a guide rail automatic lubrication structure based on a CNC machine tool and a lubrication method thereof;

[0052] The guide rail seat 2 includes a guide rail seat 2, a movable slider 3 and a lubricating oil scraper assembly 4. A lubricating oil filling port 10 is provided on the top of the guide rail seat 2. A lubricating oil storage tank 12 is provided at the inner center of the guide rail seat 2, and the lubricating oil storage tank 12 is communicated with the lubricating oil filling port 10. A limit block 9 is installed on the top of the guide rail seat 2, and the limit block 9 is used to limit the lubricating oil scraper assembly 4. A lubricating oil delivery pipe 11 is connected to the top of the lubricating oil filling port 10, and the lubricating oil delivery pipe 11 is connected to the output end of the external oil supply device. A liquid level sensor is installed on the inner wall of the lubricating oil storage tank 12. The guide rail seat 2 is provided with a guide slot 14 symmetrically on the outside of the guide rail seat 2, and a lubricating oil flow hole 15 symmetrically on the outside of the guide rail seat 2 is provided, and the lubricating oil flow hole 15 is communicated with the lubricating oil storage tank 12, and the lubricating oil flow hole 15 is located above the guide slot 14, and a mounting frame 16 is installed on the inside of the lubricating oil flow hole 15, and an oil residue filter 17 is installed on the inside of the mounting frame 16, and a mounting slot 18 is opened on the top wall of the lubricating oil flow hole 15, and a liquid flow filter 17 is installed on the inside of the mounting slot 18. The liquid flow rate sensor 19 is used to detect the flow rate of the lubricating oil flowing through the lubricating oil flow hole 15. The top of the guide rail seat 2 is embedded with a moving slider 3, and the top of the moving slider 3 is installed with a mounting seat 22. The top of the mounting seat 22 is provided with a connecting hole 23, and the outer side of the moving slider 3 is provided with a horizontal engaging groove 24. The top of the guide rail seat 2 is provided with a lubricating oil scraping assembly 4, and the lubricating oil scraping assembly 4 is used to scrape the lubricating oil on the surface of the guide rail seat 2. The lubricating oil scraping assembly 4 includes a scraping frame 25, and the scraping frame 25 is embedded with the top of the guide rail seat 2. A horizontal engaging column 26 is installed on the outer side of the scraping frame 25, and the horizontal engaging column 26 cooperates with the horizontal engaging groove 24. A groove 27 is provided on the inner wall of the scraping frame 25, and a fixing seat 28 is installed on the inner side of the groove 27. A guide pulley 29 is rotatably installed on the inner side of the fixing seat 28, and the guide pulley 29 slides on the inner side of the guide groove 14. A mounting groove 20 is provided on the inner side of the top of the scraping frame 25, and an electric telescopic rod 31 is installed on the inner wall of the mounting groove 20. A connecting plate 32 is installed at the output end of the electric telescopic rod 31, and a detector 33 is installed at the bottom of the connecting plate 32.

[0053] The lubricating oil enters the interior of the guide rail seat 2 from the lubricating oil filling port 10 through the lubricating oil delivery pipe 11 and flows through the lubricating oil storage tank 12. The lubricating oil is filtered by the oil residue filter 17 and flows from the lubricating oil flow hole 15 to the upper part of the outer surface of the guide rail seat 2. The oil residue filter 17 filters the impurities in the lubricating oil. The filtered impurities are accumulated on the outer side of the oil residue filter 17. When the moving slider 3 is working, the lubricating oil on the outer surface of the guide rail seat 2 lubricates the connection and gap between the moving slider 3 and the guide rail seat 2, ensuring the smoothness of the moving slider 3 when moving. The moving slider 3 works on the guide rail seat 2 to move in the horizontal direction.

[0054] The surface humidity detector 33 is used to detect the amount of lubricating oil on the outer wall of the guide rail seat 2. The processed parts are fixed on the mounting seat 22 through the connecting hole 23. The two sets of scraping frames 25 are moved in the direction close to the moving slider 3 and the horizontal engaging column 26 is inserted into the inner side of the horizontal engaging groove 24. The moving slider 3 works on the guide rail seat 2 to move in the horizontal direction. The mounting groove 20 provides an installation position for the electric telescopic rod 31. The connecting plate 32 ensures the stability of the detector 33 during installation. When the moving slider 3 stops moving, the electric telescopic rod 31 stops moving. 1 works to push the surface humidity detector downward so that the detection head of the surface humidity detector contacts and detects the humidity on the surface of the guide rail seat 2. When the moving slider 3 works and moves, the scraping frame 25 slides in the guide groove 14 through the guide pulley 29 and moves horizontally with the moving slider 3, without hindering the movement of the moving slider 3. During the movement of the scraping frame 25, the scraping rubber plate 36 scrapes the outer surface of the guide rail seat 2 to make the lubricating oil more uniform. The scraping rubber plate 36 has poor oil absorption and will not absorb a large amount of lubricating oil on the outer surface of the guide rail seat 2.

[0055] When the lubricating oil scraping assembly 4 is working, a group of scraping frame 25 can be provided with a surface humidity detector installed inside the mounting groove 2 30, and another group of surface humidity detectors inside the mounting groove 2 30 can be removed and replaced with a surface temperature detector. As the working time of the moving slider 3 on the guide rail seat 2 increases, the surface temperature of the guide rail seat 2 will continue to increase. In the process of the scraping frame 25 moving with the moving slider 3, when the moving slider 3 stops moving, the electric telescopic rod 31 works to push the surface humidity detector downward so that the detection head of the surface humidity detector and the detection head of another group of surface temperature detectors are synchronously contacted with the surface of the guide rail seat 2 for detection.

[0056] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 , a guide rail automatic lubrication structure based on a CNC machine tool and a lubrication method thereof;

[0057] The scraper frame 25 includes a mounting positioning plate 8, a scraper frame 25 and a spacing adjustment groove 5. The outer side of the CNC machine tool processing table 1 is mounted with a mounting positioning plate 8, and the mounting bolts penetrate the top of the mounting positioning plate 8 to achieve a stable connection between the CNC machine tool processing table 1 and the inner side of the CNC bed. A groove 27 is provided on the inner wall of the scraper frame 25, and a fixed seat 28 is installed on the inner side of the groove 27. A guide pulley 29 is rotatably installed on the inner side of the fixed seat 28, and the guide pulley 29 slides on the inner side of the guide slide groove 14. The top inner side of the scraper frame 25 is provided with a The second installation groove 30 is provided with an electric telescopic rod 31 on the inner wall of the second installation groove 30, a connecting plate 32 is provided on the output end of the electric telescopic rod 31, a surface humidity detector 33 is provided on the bottom of the connecting plate 32, a spacing adjustment groove 5 is provided on the inner wall of the scraping frame 25, a micro damper 34 is provided on the inner side of the spacing adjustment groove 5, an extrusion spring 35 is provided on the outer side of the micro damper 34, a scraping rubber plate 36 is provided on the other end of the extrusion spring 35, and the scraping rubber plate 36 is in contact with the outer side of the guide rail seat 2;

[0058] The connection between the CNC machine tool processing table 1 and the inner side of the CNC bed is achieved by installing bolts that penetrate the top of the installation positioning plate 8. The spacing adjustment groove 5 facilitates the adaptive adjustment of the scraping rubber plate 36. When the lubricating oil scraping assembly 4 moves, the scraping rubber plate 36 contacts and lubricates the outer surface of the guide rail seat 2, and it will shake. The scraping rubber plate 36 preliminarily buffers the collision impact force and squeezes the extrusion spring 35. The extrusion spring 35 buffers the conductive impact force in the horizontal direction. The micro damper 34 prevents the extrusion spring 35 from driving the scraping rubber plate 36 to shake continuously, thereby ensuring the stability of the lubricating oil scraping assembly 4 when moving. The uniform lubrication of the guide rail seat 2 improves the smoothness of the movement of the slider. The scraper frame 25 moves with the moving slider 3, and the scraper rubber plate 36 adaptively adjusts the extrusion spring 35 according to the moving rate, so that the scraper rubber plate 36 will not hinder the sliding of the moving slider 3. After the lubricating oil scraper assembly 4 is used for a long time, the extrusion spring 35 will be deformed, resulting in a change in elasticity or failure to work, thereby causing the scraper rubber plate 36 to tilt at the use angle. The scraper frame 25 moves with the moving slider 3, and the lubricating oil on the outer surface of the guide rail seat 2 is unevenly scraped. The staff observes the lubrication uniformity by themselves.

[0059] See also Figure 1 and Figure 7 , a guide rail automatic lubrication structure based on a CNC machine tool and a lubrication method thereof;

[0060] It includes a fixing plate 7 and a heating box 37. The fixing plate 7 is installed on the back of the CNC machine tool processing table 1. The heating box 37 is installed on the top of the fixing plate 7. An air inlet pipe 38 is installed on the outside of the heating box 37. An electric heating plate 39 is installed on the inside of the heating box 37. A heat-conducting wire 40 is installed on the outside of the electric heating plate 39. A protection box 41 is installed on the top of the heating box 37. A negative pressure fan 42 is installed on the bottom wall of the protection box 41. The output end of the negative pressure fan 42 is connected to an air conveying and slag cleaning pipe 43, and the output end of the air conveying and slag cleaning pipe 43 is connected to the other end of the lubricating oil storage tank 12. A maintenance operation door 44 is installed on the outside of the protection box 41 through a hinge. The inner wall of the protection box 41 is symmetrically installed with a mounting sleeve 45, and the mounting sleeve 45 is located at the bottom end of the heating box 37.

[0061] The fixing plate 7 supports the heating box 37, and the protective box 41 provides an installation position for the negative pressure fan 42 while protecting it. The negative pressure fan 42 extracts external air through the air inlet pipe 38 when it runs. The external air is heated by the electric heating plate 39 and the heat conducting wire 40 when passing through the inside of the heating box 37. The electric heating plate 39 generates heat when it works, and the heat conducting wire 40 conducts the heat. The heated gas enters the negative pressure fan 42 through the pipeline and is finally discharged through the gas conveying and slag cleaning pipe 43. The staff opens the operating cover 21 to regularly clean the collected oil residue and impurities. The electric heating plate 39 generates heat inside the protective box 41. When the heat plate 39 and the heat conducting wire 40 fail, the maintenance operation door 44 is opened for inspection and maintenance, and the filter element is installed on the inner side of the mounting sleeve 45. The mounting sleeve 45 is in a horizontal U-shape. This guide rail automatic lubrication structure is applied to CNC machine tools. The impurities and oily gases in the CNC machine tools have a heavy smell, and the production workshop environment is relatively complex. Suitable filter elements can be selected according to the actual production environment. The filter element can be a filter net, an activated carbon adsorption plate or a ceramic ring filter layer. The filter element is installed in the mounting sleeve 45, and the gas passing through the intake pipe 38 is treated accordingly to make the gas clean.

[0062] See also Figure 1 , Figure 2 and Figure 7 , a guide rail automatic lubrication structure based on a CNC machine tool and a lubrication method thereof;

[0063] The invention comprises a guide rail seat 2, a heating box 37 and a negative pressure fan 42. A lubricating oil filling port 10 is provided on the top of the guide rail seat 2. A lubricating oil storage tank 12 is provided at the inner center of the guide rail seat 2. The lubricating oil storage tank 12 is communicated with the lubricating oil filling port 10. A lubricating oil delivery pipe 11 is connected to the top of the lubricating oil filling port 10. The lubricating oil delivery pipe 11 is connected to the output end of the external oil supply device. Lubricating oil flow holes 15 are symmetrically provided on the outer side of the guide rail seat 2. The lubricating oil flow holes 15 are communicated with the lubricating oil storage tank 12. A mounting frame 16 is installed inside, an oil residue filter 17 is installed inside the mounting frame 16, a heating box 37 is installed on the top of the fixing plate 7, an air inlet pipe 38 is installed on the outside of the heating box 37, an electric heating plate 39 is installed on the inside of the heating box 37, a heat conducting wire 40 is installed on the outside of the electric heating plate 39, a protection box 41 is installed on the top of the heating box 37, a negative pressure fan 42 is installed on the bottom wall of the protection box 41, the output end of the negative pressure fan 42 is connected to a gas conveying and slag cleaning pipe 43, and the output end of the gas conveying and slag cleaning pipe 43 is connected to the other end of the lubricating oil storage tank 12;

[0064] The negative pressure fan 42 operates to extract external air through the air inlet pipe 38. The external air is heated by the electric heating plate 39 and the heat conducting wire 40 when passing through the interior of the heating box 37. The electric heating plate 39 generates heat, and the heat conducting wire 40 conducts the heat. The heated gas enters the negative pressure fan 42 through the pipeline, and finally enters the lubricating oil storage tank 12 through the air supply and residue cleaning pipe 43 to blow the residual residue at the bottom end of the interior and outside the oil residue filter 17. The attached residual residue is blown into the oil residue collection box 20 through the lubricating oil storage tank 12, and the residue outside the oil residue filter 17 is blocked and will not be discharged from the lubricating oil flow hole 15.

[0065] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 , a guide rail automatic lubrication structure based on a CNC machine tool and a lubrication method thereof;

[0066] The invention comprises a guide rail seat 2, a transmission controller 6 and a heating box 37. A lubricating oil filling port 10 is provided on the top of the guide rail seat 2. A lubricating oil storage tank 12 is provided at the inner center of the guide rail seat 2. The lubricating oil storage tank 12 is communicated with the lubricating oil filling port 10. A lubricating oil delivery pipe 11 is connected to the top of the lubricating oil filling port 10. The lubricating oil delivery pipe 11 is connected to the output end of the external oil supply device. A liquid level sensor 13 is installed on the inner wall of the lubricating oil storage tank 12. The liquid level sensor 13 is used to detect the amount of oil in the lubricating oil storage tank 12. The guide rail seat 2, a lubricating oil flow hole 15 is symmetrically opened on the outer side of the guide rail seat 2, and the lubricating oil flow hole 15 is connected to the lubricating oil storage tank 12, a mounting frame 16 is installed on the inner side of the lubricating oil flow hole 15, and an oil residue filter 17 is installed on the inner side of the mounting frame 16, and a mounting groove 18 is opened on the top wall of the lubricating oil flow hole 15, and a liquid flow rate sensor 19 is installed on the inner side of the mounting groove 18, and the liquid flow rate sensor 19 is used to detect the flow rate of the lubricating oil flowing through the lubricating oil flow hole 15. An oil residue collection box 20 is installed on the outer end of the guide rail seat 2, and the oil residue collection box 20 is connected to the lubricating oil storage tank 12. The oil storage tank 12 is matched with one end thereof, and an operating cover plate 21 is installed on the top of the oil residue collection box 20 through a hinge. A transmission controller 6 is installed on the outside of the CNC machine tool processing table 1. The transmission controller 6 is used to receive the output signals of the liquid level sensor 13 and the liquid flow rate sensor 19. The output end of the transmission controller 6 is connected to the machine tool control system, which is used to control the operation of the guide rail automatic lubrication structure. The output end of the machine tool control system is connected to the oil supply equipment drive module, and the output end of the machine tool control system is connected to the early warning module, which is used to To warn the backstage monitoring personnel, a fixing plate 7 is installed on the back of the CNC machine tool processing table 1, a heating box 37 is installed on the top of the fixing plate 7, an air inlet pipe 38 is installed on the outside of the heating box 37, an electric heating plate 39 is installed on the inside of the heating box 37, a heat-conducting wire 40 is installed on the outside of the electric heating plate 39, a protection box 41 is installed on the top of the heating box 37, a negative pressure fan 42 is installed on the bottom wall of the protection box 41, and the output end of the negative pressure fan 42 is connected to the air conveying and slag cleaning pipe 43, and the output end of the air conveying and slag cleaning pipe 43 is connected to the other end of the lubricating oil storage tank 12;

[0067] The liquid level sensor 13 detects the amount of lubricating oil in the lubricating oil storage tank 12. When it is detected that the oil residue filter 17 is blocked and the amount of oil in the lubricating oil storage tank 12 is insufficient, the machine tool control system controls the negative pressure fan 42 to start. Both of these must be met at the same time to prevent the negative pressure fan 42 from running and blowing the oil in the lubricating oil storage tank 12 directly into the oil residue collection box 20, causing waste;

[0068] The staff can manually add lubricating oil according to the working state of the CNC machine tool on site, disconnect the transmission controller 6 to stop it from working, and control the external liquid supply device to work through the CNC machine tool operation panel, and perform lubrication operation through the external oil supply device, but no automatic monitoring is required; when manually injecting lubricating oil, the lubricating oil delivery pipe 11 is disassembled to release the connection between the lubricating oil delivery pipe 11 and the lubricating oil filling port 10, and the lubricating oil is poured into the lubricating oil filling port 10 so that the lubricating oil is filtered by the oil residue filter 17 and then flows from the lubricating oil flow port 15 to the outer surface of the guide rail seat 2 for lubrication;

[0069] When flushing the inside of the guide rail seat 2 and the lubricating oil storage tank 12, sewage collection trays are placed on both sides of the guide rail 2, and the input end of the lubricating oil delivery pipe 11 is connected to the external water supply equipment. The operation of the external water supply equipment allows the cleaning water to enter the inside of the guide rail seat 2 from the lubricating oil filling port 10 and flow through the lubricating oil storage tank 12. The cleaning water flushes the impurities that are difficult to clean attached to the inner wall of the lubricating oil storage tank 12 and the filter screen 17. The impurities and the cleaning water flow from the lubricating oil flow hole 15 through the oil residue filter screen 17 to the sewage collection tray. After cleaning is completed, the machine tool control system controls the negative pressure fan 42 to run and extract external gas through the air intake pipe 38. The external gas is heated by the electric heating plate 39 and the heat conducting wire 40 when passing through the inside of the heating box 37. The heated gas enters the negative pressure fan 42 through the pipeline, and finally enters the lubricating oil storage tank 12 through the air delivery and residue removal pipe 43 to dry the inside of the guide rail seat 2.

[0070] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 , a guide rail automatic lubrication structure based on a CNC machine tool and a lubrication method thereof;

[0071] The invention comprises a guide rail seat 2, a movable slide block 3, a lubricating oil scraping assembly 4, a spacing adjustment groove 5 and a transmission controller 6. The guide rail seat 2 is symmetrically installed on the top of the CNC machine tool processing table 1. A lubricating oil filling port 10 is provided on the top of the guide rail seat 2. A lubricating oil storage tank 12 is provided at the inner center of the guide rail seat 2. The lubricating oil storage tank 12 is communicated with the lubricating oil filling port 10. A lubricating oil delivery pipe 11 is connected to the top of the lubricating oil filling port 10. The lubricating oil delivery pipe 11 is connected to the output end of the external oil supply device. A movable slide block 3 is embedded and installed on the top of the guide rail seat 2. The movable slide block 3 A mounting seat 22 is installed on the top of the guide rail seat 2, and a connecting hole 23 is opened on the top of the mounting seat 22. A lubricating oil scraping assembly 4 is provided on the top of the guide rail seat 2. The lubricating oil scraping assembly 4 is used to scrape the lubricating oil on the surface of the guide rail seat 2. The lubricating oil scraping assembly 4 includes a scraping frame 25, and the scraping frame 25 is embedded and installed on the top of the guide rail seat 2. A horizontal snap-fit ​​column 26 is installed on the outer side of the scraping frame 25, and the horizontal snap-fit ​​column 26 cooperates with the horizontal snap-fit ​​groove 24. A groove 27 is opened on the inner wall of the scraping frame 25, and a fixed seat 28 is installed on the inner side of the groove 27. The inner side of the fixed seat 28 is rotatably installed. A guide pulley 29 is provided, and the guide pulley 29 slides inside the guide slide groove 14. A mounting groove 2 30 is provided inside the top of the scraping frame 25. An electric telescopic rod 31 is installed on the inner wall of the mounting groove 2 30. A connecting plate 32 is installed at the output end of the electric telescopic rod 31. A detector 33 is installed at the bottom of the connecting plate 32. The detector 33 is a surface humidity detector or a surface temperature detector. A spacing adjustment groove 5 is provided on the inner wall of the scraping frame 25. A micro damper 34 is installed inside the spacing adjustment groove 5. An extrusion spring 35 is provided on the outer side of the micro damper 34. The extrusion spring 35 A scraping rubber plate 36 is installed at the other end, and the scraping rubber plate 36 is in contact with the outer side of the guide rail seat 2. A transmission controller 6 is installed on the outer side of the CNC machine tool processing table 1. The transmission controller 6 is used to receive the output signals of the surface humidity detector and the surface temperature detector. The output end of the transmission controller 6 is connected to the machine tool control system, which is used to control the operation of the guide rail automatic lubrication structure. The output end of the machine tool control system is connected to the oil supply equipment drive module, and the output end of the machine tool control system is connected to the early warning module, which is used to warn the background monitoring personnel;

[0072] When the staff lubricates the outer surface of the guide rail seat 2 separately, they use an oil brush to apply the lubricating oil to the outer side of the guide rail seat 2. There is no need to apply it evenly. After the lubricating oil is applied, the control panel is used to make the machine tool control system control the moving slider 3 to work. The moving slider 3 works on the guide rail seat 2 to move in the horizontal direction. The scraping frame 25 slides in the guide groove 14 through the guide pulley 29 and moves in the horizontal direction with the moving slider 3. During the movement of the scraping frame 25, the scraping rubber plate 36 scrapes the outer surface of the guide rail seat 2 to make the lubricating oil more even.

[0073] When the moving slider 3 stops moving, the electric telescopic rod 31 works to push the surface humidity detector downward so that the detection head of the surface humidity detector and the detection heads of another group of surface temperature detectors are in synchronous contact with the surface of the guide rail seat 2 for detection. The surface humidity and temperature of the guide rail seat 2 are transmitted to the transmission controller 6, and the transmission controller 6 analyzes the humidity and temperature. When the surface humidity of the guide rail seat 2 is lower than the preset minimum value and the temperature is lower than the preset maximum value, the transmission controller 6 works normally, and the transmission controller 6 transmits the signal to the machine tool control system so that the machine tool control system controls the operation of the external oil supply equipment; when the surface humidity of the guide rail seat 2 is lower than the preset minimum value When the temperature of the surface of the guide rail seat 2 is higher than the preset maximum value, the transmission controller 6 transmits a signal to the machine tool control system, and the machine tool control system controls the CNC machine tool to stop running or controls the internal cooling mechanism of the CNC machine tool to cool down the guide rail. The machine tool control system controls the early warning module to alert the background monitoring personnel, reminding the staff to check the working status of the CNC machine tool to prevent the CNC machine tool from shortening its service life by working for a long time. The staff manually controls the CNC machine tool to restore it to normal working state or when the surface temperature of the guide rail seat 2 returns to the positive range, the machine tool control system controls the CNC machine tool to resume operation;

[0074] After the lubricating oil scraper assembly 4 is used for a long time, the extrusion spring 35 will be deformed, resulting in a change in elasticity or failure to work. The staff controls the moving slider 3 to move on the guide rail seat 2 and uses a surface humidity detector to detect the amount of lubricating oil at different positions on the outer surface of the guide rail seat 2, so as to obtain the position of the corresponding damaged extrusion spring 35. When the extrusion spring 35 or the scraping rubber plate 36 is damaged, the scraping frame 25 needs to be replaced as a whole. When the lubricating oil scraper assembly 4 is working normally, the lubricating oil humidity on the outer surface of the guide rail seat 2 will deviate slightly due to different processing positions, and the deviation value is within the specified range.

[0075] The working steps of the guide rail automatic lubrication structure are as follows:

[0076] S1. First, assemble the moving slider 3 and the lubricating oil scraping assembly 4, move the two sets of scraping frames 25 toward the moving slider 3 and insert the horizontal engaging column 26 into the inner side of the horizontal engaging groove 24, and the moving slider 3 moves horizontally on the guide rail seat 2;

[0077] S2, when the moving slide block 3 stops moving, the electric telescopic rod 31 works to push the surface humidity detector downward so that the detection head of the surface humidity detector and the surface humidity of the guide rail seat 2 are detected to detect the degree of use of the lubricating oil. When the surface humidity of the guide rail seat 2 is lower than the preset minimum value, the transmission controller 6 transmits a signal to the machine tool control system, and the machine tool control system controls the external oil supply equipment to work, and the lubricating oil enters the interior of the guide rail seat 2 from the lubricating oil filling port 10 through the lubricating oil delivery pipe 11 and flows through the lubricating oil storage tank 12;

[0078] S3, the lubricating oil is filtered by the oil residue filter 17 and flows from the lubricating oil flow hole 15 to the upper part of the outer surface of the guide rail seat 2. When the movable slide block 3 is working and moving, the scraping frame 25 slides in the guide slide groove 14 through the guide pulley 29 and moves horizontally with the movable slide block 3. During the movement of the scraping frame 25, the scraping rubber plate 36 scrapes the outer surface of the guide rail seat 2 to make the lubricating oil more uniform.

[0079] S4, the liquid level sensor 13 detects the amount of lubricating oil in the lubricating oil storage tank 12. When it is lower than the preset value, the transmission controller 6 transmits a signal to the machine tool control system. The machine tool control system controls the operation of the negative pressure fan 42. The negative pressure fan 42 extracts external gas through the air inlet pipe 38. When the external gas passes through the heating box 37, it is heated by the electric heating plate 39 and the heat conducting wire 40. The heated gas enters the negative pressure fan 42 through the pipeline, and finally enters the lubricating oil storage tank 12 through the air supply and residue removal pipe 43 to blow the residual residue at the bottom of the tank and outside the oil residue filter 17. The attached residual residue is blown into the oil residue collection box 20 through the lubricating oil storage tank 12.

[0080] In step S3, the following steps are also included:

[0081] S31, the oil residue filter 17 filters the impurities in the lubricating oil, and the filtered impurities are accumulated on the outside of the oil residue filter 17, and the liquid flow rate sensor 19 detects the flow rate of the lubricating oil flowing through the lubricating oil flow hole 15. When the flow rate value is less than the preset range, it indicates that the impurities cause the oil residue filter 17 to be blocked, and the liquid flow rate sensor 19 transmits the signal to the transmission controller 6;

[0082] S32. When the lubricating oil scraper assembly 4 moves, the scraper rubber plate 36 contacts and lubricates the outer surface of the guide rail seat 2 and generates shaking. The scraper rubber plate 36 preliminarily buffers the impact force of the collision and squeezes the extrusion spring 35. The extrusion spring 35 buffers the conductive impact force in the horizontal direction. The micro damper 34 prevents the extrusion spring 35 from driving the scraper rubber plate 36 to shake continuously, thereby ensuring the stability of the lubricating oil scraper assembly 4 when moving.

[0083] Working principle: When using this device, first install the bolts through the top of the installation positioning plate 8 to achieve a firm connection between the CNC machine tool processing table 1 and the inner side of the CNC bed, assemble the moving slider 3 and the lubricating oil scraping assembly 4, move the two sets of scraping frames 25 in the direction close to the moving slider 3 and insert the horizontal engaging column 26 into the inner side of the horizontal engaging groove 24, and the moving slider 3 works on the guide rail seat 2 to move its position in the horizontal direction. When the moving slider 3 stops moving, the electric telescopic rod 31 works to push the surface humidity detector downward so that the surface humidity detector detection head and the surface humidity of the guide rail seat 2 are detected to detect the degree of lubricating oil use. When the surface humidity of the guide rail seat 2 is lower than When the minimum value is preset, the transmission controller 6 transmits the signal to the machine tool control system, and the machine tool control system controls the operation of the external oil supply equipment. The lubricating oil enters the guide rail seat 2 from the lubricating oil filling port 10 through the lubricating oil delivery pipe 11 and flows through the lubricating oil storage tank 12. The lubricating oil is filtered by the oil residue filter 17 and flows from the lubricating oil flow hole 15 to the upper part of the outer surface of the guide rail seat 2. When the moving slider 3 is working and moving, the scraping frame 25 slides in the guide slide groove 14 through the guide pulley 29 and moves horizontally with the moving slider 3. During the movement of the scraping frame 25, the scraping rubber plate 36 scrapes the outer surface of the guide rail seat 2 to make the lubricating oil more uniform. The oil residue filter 17 filters impurities in the lubricating oil. The filtered impurities accumulate on the outside of the oil residue filter 17. The liquid flow rate sensor 19 detects the flow rate of the lubricating oil flowing through the lubricating oil flow hole 15. When the flow rate value is less than the preset range, it indicates that the impurities cause the oil residue filter 17 to be blocked. The liquid flow rate sensor 19 transmits the signal to the transmission controller 6. When the lubricating oil scraper assembly 4 moves, the scraper rubber plate 36 contacts and lubricates the outer surface of the guide rail seat 2 and shakes at the same time. The scraper rubber plate 36 preliminarily buffers the collision impact force and squeezes the extrusion spring 35. The extrusion spring 35 buffers the conductive impact force in the horizontal direction. The micro damper 34 prevents the extrusion spring 35 from driving the scraper rubber plate 36 to shake continuously to ensure lubrication. The oil scraper assembly 4 is stable when moving, and the liquid level sensor 13 detects the amount of lubricating oil in the lubricating oil storage tank 12. When the amount is lower than the preset value, the transmission controller 6 transmits the signal to the machine tool control system. The machine tool control system controls the operation of the negative pressure fan 42. The negative pressure fan 42 extracts the external gas through the air inlet pipe 38. The external gas is heated by the electric heating plate 39 and the heat conducting wire 40 when passing through the heating box 37. The heated gas enters the negative pressure fan 42 through the pipeline, and finally enters the lubricating oil storage tank 12 through the air supply and residue removal pipe 43 to blow the residual residue at the bottom of the tank and outside the oil residue filter 17. The attached residual residue is blown into the oil residue collection box 20 through the lubricating oil storage tank 12.

[0084] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A guide rail automatic lubrication structure based on a numerically controlled machine tool, comprising a numerically controlled machine tool processing table (1), a guide rail seat (2) and a lubricating oil scraping assembly (4), characterized in that: A guide rail seat (2) is symmetrically mounted on the top of the CNC machine tool processing table (1), a lubricating oil filling port (10) is provided on the top of the guide rail seat (2), a lubricating oil storage groove (12) is provided at the inner center of the guide rail seat (2), and the lubricating oil storage groove (12) is connected to the lubricating oil filling port (10), a movable slider (3) is embedded and mounted on the top of the guide rail seat (2), and a horizontal snap-fit ​​groove (20) is provided on the outer side of the movable slider (3). 4), a lubricating oil scraping assembly (4) is arranged on the top of the guide rail seat (2), and the lubricating oil scraping assembly (4) is used to scrape the lubricating oil on the surface of the guide rail seat (2), and the lubricating oil scraping assembly (4) comprises a scraping frame (25), and the scraping frame (25) is embedded and installed on the top of the guide rail seat (2), and a horizontal snap-fit ​​column (26) is installed on the outer side of the scraping frame (25), and the horizontal snap-fit ​​column (26) is matched with the horizontal snap-fit ​​groove (24).

2. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 1, characterized in that: A mounting positioning plate (8) is installed on the outer side of the CNC machine tool processing table (1), and mounting bolts penetrate the top of the mounting positioning plate (8) to achieve a stable connection between the CNC machine tool processing table (1) and the inner side of the CNC bed.

3. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 1, characterized in that: A limit block (9) is installed on the top of the guide rail seat (2), and the limit block (9) is used to limit the lubricating oil scraping assembly (4). The top of the lubricating oil filling port (10) is connected to a lubricating oil delivery pipe (11), and the lubricating oil delivery pipe (11) is connected to the output end of an external oil supply device. A liquid level sensor (13) is installed on the inner wall of the lubricating oil storage tank (12), and the liquid level sensor (13) is used to detect the amount of oil in the lubricating oil storage tank (12). The outer side of the guide rail seat (2) is symmetrically provided with guide grooves (14), and the outer side of the guide rail seat (2) is symmetrically provided with lubricating oil flow holes (15), and the lubricating oil flow holes (15) are connected to the lubricating oil storage tank (12). The flow hole (15) is located above the guide slide groove (14); a mounting frame (16) is installed on the inner side of the lubricating oil flow hole (15); an oil residue filter (17) is installed on the inner side of the mounting frame (16); a mounting groove (18) is opened on the top wall of the lubricating oil flow hole (15); a liquid flow rate sensor (19) is installed on the inner side of the mounting groove (18); the liquid flow rate sensor (19) is used to detect the flow rate of the lubricating oil flowing through the lubricating oil flow hole (15); an oil residue collection box (20) is installed on the outer end of the guide rail seat (2); the oil residue collection box (20) is matched with one end of the lubricating oil storage groove (12); and an operating cover plate (21) is installed on the top of the oil residue collection box (20) through a hinge.

4. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 1, characterized in that: A mounting seat (22) is installed on the top of the movable sliding block (3), and a connecting hole (23) is opened on the top of the mounting seat (22).

5. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 1, characterized in that: The scraping frame (25) has an inner wall provided with a groove (27), a fixing seat (28) is installed inside the groove (27), a guide pulley (29) is rotatably installed inside the fixing seat (28), and the guide pulley (29) slides inside the guide groove (14), a second mounting groove (30) is provided inside the top of the scraping frame (25), an electric telescopic rod (31) is installed on the inner wall of the second mounting groove (30), a connecting plate (32) is installed at the output end of the electric telescopic rod (31), and a detector (33) is installed at the bottom of the connecting plate (32), and the detector (33) is used to detect the outer wall of the guide rail seat (2).

6. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 5, characterized in that: The inner wall of the scraping frame (25) is provided with a spacing adjustment groove (5), the inner side of the spacing adjustment groove (5) is provided with a micro damper (34), the outer side of the micro damper (34) is provided with an extrusion spring (35), the other end of the extrusion spring (35) is provided with a scraping rubber plate (36), and the scraping rubber plate (36) is in contact with the outer side of the guide rail seat (2).

7. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 1, characterized in that: A fixing plate (7) is installed on the back of the CNC machine tool processing table (1), a heating box (37) is installed on the top of the fixing plate (7), an air inlet pipe (38) is installed on the outer side of the heating box (37), an electric heating plate (39) is installed on the inner side of the heating box (37), a heat conducting wire (40) is installed on the outer side of the electric heating plate (39), a protection box (41) is installed on the top of the heating box (37), a negative pressure fan (42) is installed on the bottom wall of the protection box (41), the output end of the negative pressure fan (42) is connected to a gas conveying and slag cleaning pipe (43), and the output end of the gas conveying and slag cleaning pipe (43) is connected to the other end of the lubricating oil storage tank (12), a maintenance operation door (44) is installed on the outer side of the protection box (41) through a hinge, and a mounting sleeve (45) is symmetrically installed on the inner wall of the protection box (41), and the mounting sleeve (45) is located at the bottom end of the heating box (37).

8. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 1, characterized in that: A transmission controller (6) is installed on the outer side of the CNC machine tool processing table (1). The transmission controller (6) is used to receive output signals of the liquid level sensor (13), the liquid flow rate sensor (19) and the detector (33). The output end of the transmission controller (6) is connected to a machine tool control system. The machine tool control system is used to control the operation of the guide rail automatic lubrication structure. The output end of the machine tool control system is connected to an oil supply device drive module. The oil supply device drive module is used to drive the oil supply device. The output end of the machine tool control system is connected to an early warning module. The early warning module is used to warn background monitoring personnel.

9. The guide rail automatic lubrication structure based on a CNC machine tool according to claim 5, characterized in that: The detector (33) is a surface humidity detector or a surface temperature detector.

10. A lubrication method for a guide rail automatic lubrication structure based on a CNC machine tool according to any one of claims 1 to 9, characterized in that: The working steps of the guide rail automatic lubrication structure are as follows: S1. First, bolts are installed through the top of the installation positioning plate (8) to achieve a stable connection between the CNC machine tool processing table (1) and the inner side of the CNC machine tool, and the moving slider (3) and the lubricating oil scraping assembly (4) are assembled. The two sets of scraping frames (25) are moved in a direction close to the moving slider (3) and the horizontal engaging column (26) is inserted into the inner side of the horizontal engaging groove (24). The moving slider (3) works on the guide rail seat (2) to move in the horizontal direction; S2, when the moving slide block (3) stops moving, the electric telescopic rod (31) works to push the surface humidity detector downward so that the detection head of the surface humidity detector and the surface humidity of the guide rail seat (2) are detected to detect the degree of use of the lubricating oil. When the surface humidity of the guide rail seat (2) is lower than a preset minimum value, the transmission controller (6) transmits a signal to the machine tool control system, and the machine tool control system controls the operation of the external oil supply device, and the lubricating oil enters the interior of the guide rail seat (2) from the lubricating oil filling port (10) through the lubricating oil delivery pipe (11) and flows through the lubricating oil storage tank (12); S3, the lubricating oil is filtered by the oil residue filter (17) and flows from the lubricating oil flow hole (15) to the upper part of the outer surface of the guide rail seat (2). When the movable slide block (3) is in operation, the scraping frame (25) slides in the guide groove (14) through the guide pulley (29) and moves horizontally with the movable slide block (3). During the movement of the scraping frame (25), the scraping rubber plate (36) scrapes the outer surface of the guide rail seat (2) to make the lubricating oil more uniform. S4, the liquid level sensor (13) detects the amount of lubricating oil in the lubricating oil storage tank (12). When the amount is lower than a preset value, the transmission controller (6) transmits a signal to the machine tool control system. The machine tool control system controls the negative pressure fan (42) to operate. The negative pressure fan (42) operates to extract external air through the air inlet pipe (38). When the external air passes through the interior of the heating box (37), it is heated by the electric heating plate (39) and the heat conducting wire (40). The heated gas enters the negative pressure fan (42) through the pipeline and finally enters the lubricating oil storage tank (12) through the air conveying and slag removal pipe (43) to blow the residual slag at the bottom of the interior and outside the oil slag filter (17). The attached residual slag is blown into the oil slag collection box (20) through the lubricating oil storage tank (12).

11. The lubrication method of the guide rail automatic lubrication structure based on a CNC machine tool according to claim 10, characterized in that: In step S3, the following steps are also included: S31, the oil residue filter (17) filters impurities in the lubricating oil, and the filtered impurities are accumulated on the outside of the oil residue filter (17), and the liquid flow rate sensor (19) detects the flow rate of the lubricating oil flowing through the lubricating oil flow hole (15). When the flow rate value is less than a preset range, it indicates that the impurities cause the oil residue filter (17) to be blocked, and the liquid flow rate sensor (19) transmits a signal to the transmission controller (6); S32, when the lubricating oil scraping assembly (4) moves, the scraping rubber plate (36) contacts and lubricates the outer surface of the guide rail seat (2) and generates shaking. The scraping rubber plate (36) performs preliminary buffering of the collision impact force and squeezes the extrusion spring (35). The extrusion spring (35) buffers the conductive impact force in the horizontal direction. The micro damper (34) prevents the extrusion spring (35) from driving the scraping rubber plate (36) to shake continuously, thereby ensuring the stability of the lubricating oil scraping assembly (4) when moving.

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