Numerical control machine tool liquid level detection device with automatic cleaning function

Abstract

The utility model belongs to the technical field of liquid level detection devices, and discloses a numerically-controlled machine tool liquid level detection device capable of being automatically cleaned, which comprises a magnetic liquid level transmitter, the lower end of the magnetic liquid level transmitter is connected with a magnetostrictive probe, a static well is arranged at the lower end of the magnetic liquid level transmitter, a clamping ring is arranged at the outer end of the static well, and the magnetostrictive probe is connected with the clamping ring. The static well comprises a static well body, a clamping ring is arranged in the static well body, a filter screen is connected to the lower end of the clamping ring, cavities are symmetrically formed in the left end and the right end of the clamping ring, positioning rods are slidably connected into the cavities, fixing rods are connected to the close ends of the positioning rods, and springs penetrate through the middle ends of the positioning rods. The filter screen is installed at the outer end of the static well body through cooperation of the static well body, the clamping ring, the filter screen, the cavities, the positioning rods, the fixing rods and the springs; impurities in the numerical control machine tool are filtered through the filter screen, the impurities are prevented from entering the static well and being not easy to clean, the static well and the clamping ring are fixed through the positioning rod, the clamping ring and the filter screen can be rapidly disassembled and assembled, the working time is saved, and the filter efficiency of the device is kept by replacing the filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level detection devices, and particularly relates to a numerically controlled machine tool liquid level detection device capable of automatic cleaning. Background Technique

[0002] A numerically controlled machine tool liquid level detection device is a device specifically used for detecting the liquid level of liquid media in numerically controlled machine tools. Such devices usually integrate high-precision sensors and advanced signal processing technologies to ensure accurate and reliable monitoring of liquid level changes. Numerically controlled machine tool liquid level detection devices are widely used in various numerically controlled machine tools, especially when precise control of the liquid level of liquid media (such as coolant, lubricating oil, etc.) is required. By real-time monitoring of liquid level changes, the normal operation and processing accuracy of numerically controlled machine tools can be ensured, and production efficiency and product quality can be improved.

[0003] Existing ones, such as the Chinese patent application number CN201821844467.4, a liquid level measuring device for machine tool coolant, the existing device includes a liquid storage tank, a mounting rack and a liquid level measuring mechanism. The liquid level measuring mechanism includes a connecting plate, a limiting plate and a limiting component. The connecting plate is installed on the mounting rack. The limiting plate is perpendicular to the connecting plate. An arc-shaped limiting hole is opened on the limiting plate. A proximity switch I and a proximity switch II are installed in the arc-shaped limiting hole. The limiting component includes a fixed shaft, a movable sleeve, a limiting rod and a floating rod. The movable sleeve is rotatably connected to the free end of the fixed shaft. A limiting rod is arranged on the outer wall of the movable sleeve and the central axis of the limiting rod is perpendicular to the central axis of the movable sleeve. The free end of the limiting rod is always located between the proximity switch I and the proximity switch II. One end of the floating rod is arranged on the outer circumferential surface of the movable sleeve. The other end of the floating rod is connected with a floating ball. The floating ball is arranged in the liquid storage tank. This liquid level measuring device can transmit the liquid level signal of the coolant in the liquid storage, reducing the production operation cost. However, the existing device does not consider that there are impurities in the machine tool coolant. When impurities enter the liquid level measuring device, it will cause errors in the measurement results, affecting the accuracy of the liquid level measuring device, and it is not easy to clean the impurities inside the liquid level measuring device, reducing the service life of the device.

[0004] Therefore, we propose a numerically controlled machine tool liquid level detection device capable of automatic cleaning to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a numerically controlled machine tool liquid level detection device capable of automatic cleaning to solve the problems in the above background technique that the existing device does not consider that there are impurities in the machine tool coolant. When impurities enter the liquid level measuring device, it will cause errors in the measurement results, affecting the accuracy of the liquid level measuring device, and it is not easy to clean the impurities inside the liquid level measuring device, reducing the service life of the device.

[0006] To achieve the above object, the utility model provides the following technical solution: a liquid level detection device for a numerically controlled machine tool that can be automatically cleaned, including a magnetostrictive liquid level transmitter.

[0007] The magnetostrictive liquid level transmitter has a magnetostrictive probe connected to its lower end, and a still well is installed at the lower end of the magnetostrictive liquid level transmitter. A retaining ring is installed at the outer end of the still well, and a filter screen is connected to the lower end of the retaining ring. Cavities are symmetrically opened at the left and right ends of the retaining ring, and positioning rods are slidably connected in the cavities. The adjacent ends of the positioning rods are connected to fixing rods, and springs are penetrated through the middle parts of the positioning rods.

[0008] Preferably, the magnetostrictive probe extends to the bottom end of the still well, and the still well is snap-fitted with the retaining ring. The cavity is slidably connected with the positioning rod, and the positioning rod penetrates through the cavity and is embedded in the still well. The adjacent ends of the springs are fixedly connected to the fixing rods, and the opposite ends of the springs are fixedly connected to the cavity.

[0009] By adopting the above technical solution, by pulling out the positioning rods to the left and right ends, the positioning rods drive the fixing rods to move to the left and right ends, squeezing the springs. When the positioning rods are pulled out of the still well, the retaining ring and the filter screen can be disassembled to replace the filter screen. When the retaining ring is aligned with the still well, release the positioning rods, and the springs drive the fixing rods and the positioning rods to reset, fixing the retaining ring and the filter screen again.

[0010] Preferably, a float is arranged inside the still well, a ventilation hole is opened at the upper end of the still well, and a lower through hole is opened at the lower end of the still well.

[0011] By adopting the above technical solution, the liquid flows into the inside of the still well through the lower through hole, and at the same time, the air inside the still well is discharged from the ventilation hole.

[0012] Preferably, connecting rods are connected to the left and right ends of the bottom of the still well, and an annular support frame is connected to the opposite ends of the connecting rods.

[0013] By adopting the above technical solution, the lower end of the still well is connected to the connecting rods, the connecting rods are connected to the annular support frame, and the annular support frame plays a supporting role for the filter screen to prevent the filter screen from fitting with the still well.

[0014] Preferably, a motor is installed inside the left end of the still well, a gear is connected to the lower end of the motor, the gear is meshed with a toothed ring, spherical blocks are symmetrically connected to the upper left and right ends of the toothed ring, and a brush plate is installed at the lower right end of the toothed ring.

[0015] By adopting the above technical solution, the motor drives the gear to rotate, the gear is meshed with the toothed ring to drive the toothed ring to rotate, and while the toothed ring rotates, it drives the lower brush plate to rotate to clean the filter screen.

[0016] Preferably, an annular groove is opened inside the still well, and the spherical blocks are slidably connected in the annular groove.

[0017] With the above technical solution, a spherical block is connected to the upper end of the gear ring, and the spherical block slides inside the annular groove, and the gear ring plays a supporting role.

[0018] Compared with the prior art, the beneficial effects of the present utility model are: the liquid level detection device of the numerically controlled machine tool that can be automatically cleaned;

[0019] 1. Through the cooperation among the stilling well, the clamping ring, the filter screen, the cavity, the positioning rod, the fixing rod and the spring, a filter screen is installed at the outer end of the stilling well, and the filter screen is used to filter impurities inside the numerically controlled machine tool to prevent impurities from entering the stilling well, which is not easy to clean. The stilling well and the clamping ring are fixed by the positioning rod, and the clamping ring and the filter screen can be quickly disassembled and installed, saving working time and replacing the filter screen to maintain the filtering efficiency and cleanliness of the device;

[0020] 2. Through the cooperation among the motor, the gear, the gear ring, the spherical block, the brush plate and the annular groove, the filter screen can be cleaned to prevent the holes of the filter screen from being blocked by impurities, resulting in the situation that the liquid flow rate is crowded, which is beneficial to improving the working efficiency of the device and the accuracy of measuring the liquid level, and making the measurement of the liquid level more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0022] Figure 2 For the present utility model Figure 1 Schematic diagram of the structure at A in

[0023] Figure 3 For the present utility model Figure 1 Schematic diagram of the structure at B in

[0024] Figure 4 It is a top view sectional structure schematic diagram of the present utility model;

[0025] Figure 5 It is a top view structure schematic diagram of the present utility model.

[0026] In the figure: 1. Magnetostrictive liquid level transmitter; 2. Magnetostrictive probe; 3. Stilling well; 4. Float; 5. Vent hole; 6. Lower through hole; 7. Clamping ring; 8. Filter screen; 9. Cavity; 10. Positioning rod; 11. Fixing rod; 12. Spring; 13. Connecting rod; 14. Annular support frame; 15. Motor; 16. Gear; 17. Gear ring; 18. Spherical block; 19. Brush plate; 20. Annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-5 , the present utility model provides a technical solution: an automatically cleanable liquid level detection device for a numerical control machine tool, including a magnetostrictive liquid level transmitter 1. The lower end of the magnetostrictive liquid level transmitter 1 is connected with a magnetostrictive probe 2, and a still well 3 is installed at the lower end of the magnetostrictive liquid level transmitter 1. A retaining ring 7 is installed at the outer end of the still well 3, and a filter screen 8 is connected to the lower end of the retaining ring 7. Cavities 9 are symmetrically opened at the left and right ends of the retaining ring 7, and a positioning rod 10 is slidably connected in the cavity 9. The adjacent ends of the positioning rod 10 are connected with a fixing rod 11, and a spring 12 passes through the middle of the positioning rod 10. The magnetostrictive probe 2 extends to the bottom end of the still well 3, and the still well 3 is snap-fitted with the retaining ring 7. The cavity 9 is slidably connected with the positioning rod 10, and the positioning rod 10 penetrates through the cavity 9, and the positioning rod 10 is embedded in the still well 3. The adjacent ends of the spring 12 are fixedly connected with the fixing rod 11, and the opposite ends of the spring 12 are fixedly connected with the cavity 9. A float 4 is arranged inside the still well 3, a vent hole 5 is opened at the upper end of the still well 3, and a lower through hole 6 is opened at the lower end of the still well 3. Through the cooperation among the magnetostrictive liquid level transmitter 1, the magnetostrictive probe 2 and the float 4, the liquid level can be measured. The liquid enters the inside of the still well 3 through the lower through hole 6, and at the same time, the air inside the still well 3 is discharged from the still well 3 through the vent hole 5. Pull out the positioning rod 10 to the left and right ends, the positioning rod 10 drives the fixing rod 11 to move to the left and right ends, and the fixing rod 11 and the inner wall of the cavity 9 squeeze the spring 12. When the positioning rod 10 is pulled out from both ends of the still well 3, the retaining ring 7 and the filter screen 8 at the lower end can be taken out to replace the filter screen 8. After long-term use, the filter screen 8 will be damaged, affecting the filtering function. Therefore, it is necessary to regularly replace the filter screen 8. Align the retaining ring 7 with the still well 3 and release the positioning rod 10. The spring 12 drives the fixing rod 11 and the positioning rod 10 to reset, which can quickly install the retaining ring 7 and the filter screen 8, save working time, improve work efficiency and the convenience of the device, prevent impurities from precipitating inside the still well 3 from affecting the accuracy of liquid level measurement, and improve the service life of the device.

[0029] At the left and right ends of the bottom of the static well 3, there are connecting rods 13 connected. The opposite ends of the connecting rods 13 are connected with an annular support frame 14. Inside the left end of the static well 3, there is a motor 15 installed. The lower end of the motor 15 is connected with a gear 16. The gear 16 is meshed with a gear ring 17. On the upper side of the gear ring 17, there are spherical blocks 18 symmetrically connected at the left and right ends. And at the right end of the lower side of the gear ring 17, there is a brush plate 19 installed. An annular groove 20 is opened inside the static well 3. The spherical block 18 is slidably connected inside the annular groove 20. By connecting the connecting rod 13 at the lower end of the static well 3, the connecting rod 13 is connected with the annular support frame 14, and the annular support frame 14 plays a supporting role for the filter screen 8, preventing the filter screen 8 from fitting with the static well 3 and affecting the filtering effect. Using the motor 15 to drive the gear 16 to rotate, the gear 16 is meshed with the gear ring 17 to drive the gear ring 17 to rotate. The upper end of the gear ring 17 is connected with the spherical block 18, and the spherical block 18 slides inside the annular groove 20. The gear ring 17 plays a supporting role. While the gear ring 17 rotates, it drives the lower brush plate 19 to rotate to clean the filter screen 8, preventing impurities from clogging the filter screen 8, reducing the filtering effect and filtering speed of the filter screen 8, improving the working efficiency of the device, and increasing the service life of the filter screen 8.

[0030] Working principle: When using this automatic cleaning numerical control machine tool liquid level detection device, place the device in the liquid. After the liquid is filtered by the filter screen 8, it enters the static well 3 through the lower through hole 6. The gas inside the static well 3 is discharged through the ventilation hole 5. The cooperation between the magnetostrictive probe 2 and the float 4 is used to measure the liquid height and is displayed by the magnetic liquid level transmitter 1. After the filter screen 8 is used for a long time, it will be damaged. Pull out the positioning rods 10 to the left and right ends. The positioning rods 10 drive the fixing rods 11 to move to the left and right ends, squeezing the spring 12. When the positioning rods 10 are pulled out of the static well 3, the snap ring 7 and the filter screen 8 can be disassembled to replace the filter screen 8. When the snap ring 7 is aligned with the static well 3, release the positioning rods 10, and the spring 12 drives the fixing rods 11 and the positioning rods 10 to reset, fixing the snap ring 7 and the filter screen 8 again. Use the motor 15 to drive the gear 16 to rotate, the gear 16 drives the gear ring 17 to rotate, and the spherical block 18 plays a supporting role for the gear ring 17. When the gear ring 17 rotates, it drives the lower brush plate 19 to rotate, so that the brush plate 19 plays a cleaning role for the filter screen 8, preventing the filter screen 8 from being blocked by impurities.

[0031] Thus, a series of operations are completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid level detection device for a CNC machine tool capable of automatic cleaning, comprising a magneto-induced liquid level transmitter (1), characterized in that: The magnetostrictive liquid level transmitter (1) has a magnetostrictive probe (2) connected to its lower end, and a static well (3) is installed at the lower end of the magnetostrictive liquid level transmitter (1), a clamping ring (7) is installed at the outer end of the static well (3), and a filter screen (8) is connected to the lower end of the clamping ring (7), cavities (9) are symmetrically opened at the left and right ends of the clamping ring (7), and a positioning rod (10) is slidably connected in the cavity (9), the proximal end of the positioning rod (10) is connected to a fixing rod (11), and a spring (12) passes through the middle end of the positioning rod (10).

2. The automatic cleaning liquid level detection device for CNC machine tools according to claim 1, characterized in that: The magnetostrictive probe (2) extends to the bottom end of the static well (3), and the static well (3) is snap-connected with the clamping ring (7), the cavity (9) is slidably connected with the positioning rod (10), and the positioning rod (10) passes through the cavity (9), and the positioning rod (10) is embedded in the static well (3), the proximal end of the spring (12) is fixedly connected with the fixing rod (11), and the opposite end of the spring (12) is fixedly connected with the cavity (9).

3. The automatic cleaning liquid level detection device for CNC machine tools according to claim 1, characterized in that: A float (4) is arranged inside the static well (3), a vent hole (5) is opened at the upper end of the static well (3), and a lower through hole (6) is opened at the lower end of the static well (3).

4. The automatic cleaning liquid level detection device for CNC machine tools according to claim 1, characterized in that: The left and right ends of the bottom of the static well (3) are connected to connecting rods (13), and the opposite ends of the connecting rods (13) are connected to an annular support frame (14).

5. The automatic cleaning liquid level detection device for CNC machine tools according to claim 1, characterized in that: A motor (15) is installed inside the left end of the static well (3), and a gear (16) is connected to the lower end of the motor (15). The gear (16) is meshingly connected to a gear ring (17), and spherical blocks (18) are symmetrically connected to the left and right ends of the upper side of the gear ring (17), and a brush plate (19) is installed at the right end of the lower side of the gear ring (17).

6. The automatic cleaning liquid level detection device for CNC machine tools according to claim 1, characterized in that: An annular groove (20) is provided inside the static well (3), and a spherical block (18) is slidably connected inside the annular groove (20).

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