Cooling liquid filtering device for numerical control machine tool machining

Abstract

The cooling liquid filtering device for numerical control machine tool machining comprises a water collecting tank, a screening cylinder is arranged in the water collecting tank, and the two ends of the screening cylinder penetrate through the upper end and the lower end of the water collecting tank respectively and are rotationally connected with the water collecting tank. The bottom extending end of the screening barrel is connected with a driving mechanism, the top extending end of the screening barrel is sleeved with a connecting sleeve and connected with the connecting sleeve in a threaded fit mode, a scrap collecting barrel is fixedly installed at the upper end of the connecting sleeve, and a scrap pushing disc is slidably installed in the screening barrel. The scrap pushing disc can be controlled to move in the screening barrel through the arranged air cylinder, so that scraps in the screening barrel are pushed into the scrap collecting barrel, the single-time use time of the screening barrel is greatly prolonged, the number of times of dismounting the screening barrel for cleaning can be greatly reduced within the same time, and the overall working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to a cooling liquid filtering device for numerically controlled machine tool processing. Background Art

[0002] Machine tools refer to machines used to manufacture machines. There are many types of machine tools, which are generally divided into metal cutting machine tools, forging machine tools, and drilling machine tools. During the processing of iron parts, various machine tools used in the workshop will generate a large amount of iron chips, which will remain in the processing coolant. During the operation of machine tools, a large amount of dust, solid particle pollutants and other debris will be mixed into the coolant. In order to avoid wasting and recycling coolant, a coolant filter device is essential. Most existing coolant filter devices filter through a filter screen. After a period of use, the filter screen needs to be cleaned or replaced, otherwise the filtering effect will be affected.

[0003] According to a Chinese patent document with announcement number CN220007038U, a coolant filter device for a numerically controlled machine tool is disclosed, which solves the technical problems of poor filtering effect and difficulty in cleaning the filter plate of the existing filtering device.

[0004] However, when the above device is in use, whenever the filter cartridge becomes clogged, the device needs to be stopped and disassembled to clean the filter cartridge, and the single-use time of the filter cartridge needs to be improved. To this end, a coolant filtration device for CNC machine tools is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a cooling liquid filtering device for CNC machine tools to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coolant filtering device for CNC machine tools, comprising a water collecting box, a support frame fixedly installed at the bottom of the water collecting box, a screening drum provided inside the water collecting box, two ends of the screening drum respectively pass through the upper and lower ends of the water collecting box and are rotatably connected to the water collecting box, the bottom protruding end of the screening drum is connected to a driving mechanism, the top protruding end of the screening drum is provided with a connecting sleeve and is connected to the connecting sleeve by threaded fitting, a chip collecting drum is fixedly installed at the upper end of the connecting sleeve, a water inlet pipe is provided at the upper end of the chip collecting drum, a chip pusher is slidably installed inside the screening drum, and a lifting mechanism is provided at the bottom of the chip pusher.

[0007] As a further preferred embodiment of the present technical solution, the inner diameter of the chip collecting drum is larger than the inner diameter of the screening drum.

[0008] As a further preferred embodiment of the present technical solution, the driving mechanism consists of an external gear, a driving gear, a motor and a connecting plate. The bottom protruding end of the screening drum is sleeved with an external gear and fixedly connected to the external gear. A driving gear is rotatably installed at the bottom of the water collecting tank. The driving gear and the external gear are engaged with each other. A motor is provided at the bottom of the driving gear. The motor is fixedly connected to the water collecting tank through a connecting plate, and the output shaft of the motor is fixedly connected to the driving gear.

[0009] As a further preferred embodiment of the present technical solution, the lifting mechanism includes a cylinder, which is fixedly connected to the bottom of the water collecting tank, and a fixed plate is fixedly connected to the bottom of the cylinder, and the fixed plate is fixedly connected to the side wall of the support frame. The telescopic rod of the cylinder slides through the bottom of the screening drum and is fixedly connected to the chip pusher, and the screening drum is rotatably connected to the telescopic rod of the cylinder.

[0010] As a further preferred embodiment of the present technical solution, the upper end of the water inlet pipe is fixedly connected to a threaded pipe, the outer surface of the threaded pipe is provided with a mounting plate and is connected to the mounting plate by threaded fitting, the bottom of the mounting plate is fixedly connected to the upper end of the water collecting box, the bottom of the water inlet pipe slides through the top of the chip collecting barrel, and the water inlet pipe is rotatably connected to the chip collecting barrel.

[0011] As a further preferred embodiment of the present technical solution, the distance between the top end of the screening drum and the mounting plate is greater than the sum of the heights of the chip collecting drum and the threaded tube.

[0012] As a further preferred embodiment of the present technical solution, the bottom of the water collecting tank is connected with a connecting pipe, a water pump is provided on the connecting pipe, and the water pump is fixedly connected to the support frame through a support plate.

[0013] The utility model provides a cooling liquid filtering device for CNC machine tools, which has the following beneficial effects:

[0014] The utility model can control the high-speed rotation of the screening drum through the provided driving mechanism. The centrifugal force generated by the rotation of the screening drum will make the coolant approach the inner wall of the screening drum, thereby screening the coolant. The provided cylinder can control the chip pushing plate to move in the screening drum, thereby pushing the debris in the screening drum into the chip collecting drum, thereby greatly extending the single use time of the screening drum. Within the same time, the number of times the screening drum is disassembled for cleaning can be greatly reduced, thereby effectively improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the dissection of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the driving mechanism in the utility model;

[0018] Figure 4 This is a schematic structural diagram of the water inlet pipe and chip collecting barrel in the utility model;

[0019] In the figure: 1. Water collecting tank; 2. Support frame; 3. Water pump; 4. Connecting pipe; 5. Support plate; 6. Fixed plate; 7. Cylinder; 8. Chip collecting drum; 9. Screening drum; 10. External gear; 11. Driving gear; 12. Motor; 13. Connecting plate; 14. Connecting sleeve; 15. Chip pusher; 16. Mounting plate; 17. Water inlet pipe; 18. Threaded pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a coolant filtering device for CNC machine tools includes a water collecting tank 1, a support frame 2 is fixedly installed at the bottom of the water collecting tank 1, a screening drum 9 is arranged inside the water collecting tank 1, both ends of the screening drum 9 respectively pass through the upper and lower ends of the water collecting tank 1 and are rotatably connected to the water collecting tank 1, the bottom protruding end of the screening drum 9 is connected to a driving mechanism, the top protruding end of the screening drum 9 is sleeved with a connecting sleeve 14 and is connected to the connecting sleeve 14 by threaded fitting, a chip collecting drum 8 is fixedly installed on the upper end of the connecting sleeve 14, the inner diameter of the chip collecting drum 8 is larger than the inner diameter of the screening drum 9, a water inlet pipe 17 is provided at the upper end of the chip collecting drum 8, a chip pusher 15 is slidably installed inside the screening drum 9, and a lifting mechanism is provided at the bottom of the chip pusher 15.

[0022] Among them, the driving mechanism consists of an external gear 10, a driving gear 11, a motor 12 and a connecting plate 13. The bottom protruding end of the screening drum 9 is sleeved with an external gear 10 and fixedly connected to the external gear 10. The bottom of the water collecting tank 1 is rotatably installed with a driving gear 11, and the driving gear 11 and the external gear 10 are engaged with each other. A motor 12 is provided at the bottom of the driving gear 11, and the motor 12 is fixedly connected to the water collecting tank 1 through the connecting plate 13. The output shaft of the motor 12 is fixedly connected to the driving gear 11.

[0023] When in use, the starting motor 12 drives the driving gear 11 to rotate, thereby driving the outer gear 10 meshing with the driving gear 11 to rotate, and then driving the screening drum 9 to rotate. The centrifugal force generated by the rotation of the screening drum 9 will make the coolant approach the inner wall of the screening drum 9, thereby screening the coolant, allowing the coolant to enter the water collecting tank 1, and the debris in the coolant remains in the screening drum 9.

[0024] Among them, the lifting mechanism includes a cylinder 7, which is fixedly connected to the bottom of the water collecting tank 1, and the bottom of the cylinder 7 is fixedly connected to a fixed plate 6, which is fixedly connected to the side wall of the support frame 2. The telescopic rod of the cylinder 7 slides through the bottom of the screening drum 9 and is fixedly connected to the chip pusher 15, and the screening drum 9 is rotatably connected to the telescopic rod of the cylinder 7.

[0025] The height of the chip pusher 15 is controlled by adjusting the length of the telescopic rod of the air cylinder 7 .

[0026] Among them, the upper end of the water inlet pipe 17 is fixedly connected with a threaded pipe 18, the outer surface of the threaded pipe 18 is provided with a mounting plate 16 and is connected to the mounting plate 16 through threaded cooperation, the bottom of the mounting plate 16 is fixedly connected to the upper end of the water collecting box 1, and the bottom of the water inlet pipe 17 slides through the top of the chip collecting barrel 8, and the water inlet pipe 17 is rotatably connected to the chip collecting barrel 8.

[0027] The water inlet pipe 17 can ensure that the coolant enters the screening drum 9, and the mounting plate 16 and the threaded pipe 18 can ensure that the water inlet pipe 17 does not interfere with the rotation of the chip collecting drum 8.

[0028] The distance between the top end of the screening drum 9 and the mounting plate 16 is greater than the sum of the heights of the chip collecting drum 8 and the threaded tube 18 .

[0029] Such an arrangement can ensure that the gap between the top end of the screening drum 9 and the mounting plate 16 is sufficient for disassembling the chip collecting drum 8 .

[0030] The bottom of the water collecting tank 1 is connected with a connecting pipe 4 , and a water pump 3 is provided on the connecting pipe 4 . The water pump 3 is fixedly connected to the supporting frame 2 through a supporting plate 5 .

[0031] The coolant in the water collecting tank 1 can be discharged through the provided water pump 3 and the connecting pipe 4 and put into the cooling system for recycling.

[0032] The utility model provides a cooling liquid filtering device for CNC machine tools, and the specific working principle is as follows:

[0033] When in use, the coolant is introduced into the screening drum 9 through the water inlet pipe 17, the motor 12 is started to drive the driving gear 11 to rotate, thereby driving the outer gear 10 meshing with the driving gear 11 to rotate, and then driving the screening drum 9 to rotate. The centrifugal force generated by the rotation of the screening drum 9 will make the coolant close to the inner wall of the screening drum 9, thereby screening the coolant, so that the coolant enters the water collecting tank 1, and the debris in the coolant remains in the screening drum 9. When the debris accumulated in the screening drum 9 affects the screening efficiency, the length of the telescopic rod of the cylinder 7 is extended to control the chip pusher 15 to move upward. The chip pusher 15 is a hollow structure, which can reduce the resistance from the coolant. The debris will stick to the inner wall of the screening drum 9 under the action of centrifugal force, and the chip pusher 15 will move upward to push most of the debris upward. When the debris is pushed to the position of the chip collecting drum 8, the debris will approach the inner wall of the chip collecting drum 8 under the action of centrifugal force, thereby collecting the debris into the chip collecting drum 8. Finally, the length of the telescopic rod of the cylinder 7 is retracted to restore the chip pusher 15 to its initial position. At this time, the screening drum 9 can continue to perform screening work. In this way, the service life of the screening drum 9 can be greatly extended, and the number of times the screening drum 9 is disassembled for cleaning can be greatly reduced within the same time, thereby effectively improving the overall work efficiency.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling liquid filtering device for CNC machine tools, comprising a water collecting tank (1), characterized in that: A support frame (2) is fixedly installed at the bottom of the water collecting box (1), a screening drum (9) is provided inside the water collecting box (1), the two ends of the screening drum (9) respectively pass through the upper and lower ends of the water collecting box (1) and are rotatably connected to the water collecting box (1), the bottom protruding end of the screening drum (9) is connected to a driving mechanism, the top protruding end of the screening drum (9) is sleeved with a connecting sleeve (14) and is connected to the connecting sleeve (14) by threaded engagement, a chip collecting drum (8) is fixedly installed at the upper end of the connecting sleeve (14), a water inlet pipe (17) is provided at the upper end of the chip collecting drum (8), a chip pusher (15) is slidably installed inside the screening drum (9), and a lifting mechanism is provided at the bottom of the chip pusher (15).

2. The coolant filter device for CNC machine tools according to claim 1, characterized in that: The inner diameter of the chip collecting cylinder (8) is larger than the inner diameter of the screening cylinder (9).

3. The coolant filter device for CNC machine tools according to claim 1, characterized in that: The driving mechanism is composed of an external gear (10), a driving gear (11), a motor (12) and a connecting plate (13); the bottom protruding end of the screening drum (9) is sleeved with the external gear (10) and fixedly connected to the external gear (10); the bottom of the water collecting tank (1) is rotatably mounted with a driving gear (11); the driving gear (11) and the external gear (10) are meshed with each other; the bottom of the driving gear (11) is provided with a motor (12); the motor (12) is fixedly connected to the water collecting tank (1) via the connecting plate (13); and the output shaft of the motor (12) is fixedly connected to the driving gear (11).

4. The coolant filter device for CNC machine tools according to claim 1, characterized in that: The lifting mechanism comprises a cylinder (7), the cylinder (7) being fixedly connected to the bottom of the water collecting tank (1), the bottom of the cylinder (7) being fixedly connected to a fixed plate (6), the fixed plate (6) being fixedly connected to the side wall of the support frame (2), the telescopic rod of the cylinder (7) slidingly passing through the bottom of the screening drum (9) and being fixedly connected to the chip pusher (15), and the screening drum (9) being rotatably connected to the telescopic rod of the cylinder (7).

5. The coolant filter device for CNC machine tools according to claim 1, characterized in that: The upper end of the water inlet pipe (17) is fixedly connected to a threaded pipe (18), the outer surface of the threaded pipe (18) is sleeved with a mounting plate (16) and is connected to the mounting plate (16) by threaded engagement, the bottom of the mounting plate (16) is fixedly connected to the upper end of the water collecting box (1), the bottom of the water inlet pipe (17) slides through the top end of the chip collecting barrel (8), and the water inlet pipe (17) is rotatably connected to the chip collecting barrel (8).

6. The coolant filter device for CNC machine tools according to claim 5, characterized in that: The distance between the top end of the screening cylinder (9) and the mounting plate (16) is greater than the sum of the heights of the chip collecting cylinder (8) and the threaded tube (18).

7. The coolant filter device for CNC machine tools according to claim 1, characterized in that: The bottom of the water collecting tank (1) is connected to a connecting pipe (4), a water pump (3) is provided on the connecting pipe (4), and the water pump (3) is fixedly connected to the support frame (2) via a support plate (5).

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