A coolant circulation device for CNC machining

Abstract

This utility model relates to the field of CNC machining auxiliary equipment, and more particularly to a coolant circulation device for CNC machining. The technical problem is that existing coolant circulation devices are not convenient for simultaneously separating oil and debris, the purification of the circulating fluid is time-consuming, the circulation efficiency is low, and there is excessive contact between debris and oil during separation, resulting in low cleanliness of the recovered debris. A coolant circulation device for CNC machining includes a base frame, a housing fixed to the top of the base frame, a liquid inlet fixed to the top of the housing, a sedimentation tank fixed to the top of the inner wall of the housing, and a guide plate fixed to the lower part of the inner wall of the housing. High-pressure gas is continuously introduced into the blowing frame by the operator. The high-pressure gas is ejected from the nozzle of the blowing frame, blowing the debris on the filter screen towards the outlet on one side of the housing. This intermittently blows the debris on the filter screen, reducing the probability of excessive debris accumulation on the filter screen and weakening the filtration effect, facilitating continuous operation.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining auxiliary equipment, and in particular to a coolant circulation device for CNC machining. Background Technology

[0002] A large amount of coolant is used in CNC machining. Used coolant contains a lot of metal shavings and a small amount of oil. Since metal shavings have great recycling value and oil is highly polluting, directly discharging used coolant would cause great waste and pollution. Therefore, used coolant is usually purified by degreasing and deshaving and then recycled.

[0003] Existing coolant circulation devices typically first filter the collected coolant to remove debris, and then use an oil suction machine to remove oil from the surface of the coolant. The removal of oil and debris needs to be done separately, which is not convenient for separating oil and debris at the same time. The purification of the circulating fluid is time-consuming and the circulation efficiency is low. In addition, there is more contact between debris and oil during separation, resulting in a lower cleanliness of the recovered debris. Utility Model Content

[0004] To overcome the shortcomings of existing coolant circulation devices, such as difficulty in simultaneously separating oil and debris, long purification time, low circulation efficiency, and excessive contact between debris and oil during separation, resulting in low cleanliness of recovered debris, this invention provides a coolant circulation device for CNC machining that facilitates simultaneous separation of oil and debris, reduces the time required for circulating fluid purification, improves circulation efficiency, minimizes contact between debris and oil during separation, and enhances the cleanliness of recovered debris.

[0005] The technical solution of this utility model is as follows: A coolant circulation device for CNC machining, comprising a base frame;

[0006] The housing is fixed to the top of the base frame, and a discharge port is opened on one side of the housing;

[0007] The liquid inlet hopper is fixed to the top of the shell;

[0008] A settling tank is fixed to the top of the inner wall of the shell, and an oil outlet is opened on one side of the settling tank;

[0009] A liquid guide plate fixed to the lower part of the inner wall of the shell;

[0010] A circulating pump fixed to one side of the casing;

[0011] Oil removal mechanism installed on the shell and sedimentation tank;

[0012] The dander removal mechanism is installed on the shell, sedimentation tank, and degreasing mechanism.

[0013] Preferably, the liquid guide plate is set at an angle.

[0014] Preferably, the oil removal mechanism includes two electric push rods fixed to the top of the inner wall of the shell, an oil scraper fixed between the two electric push rods and a telescopic rod, the lowest point of the oil scraper being slightly lower than the lowest point of the oil outlet of the sedimentation tank, an oil collection hopper fixed to one side of the sedimentation tank, and an oil-water separator fixed to the top of the inner wall of the shell, the inlet of the oil-water separator being fixed and connected to the oil collection hopper.

[0015] Preferably, the desiccant mechanism includes: several notched rollers rotatably connected to the bottom of the sedimentation tank; several servo motors fixed to one side of the sedimentation tank, with the output shafts of the servo motors fixed to the notched rollers; several control switches fixed to one side of the sedimentation tank, with the control switches electrically connected to the servo motors; a transmission frame slidably connected to the upper part of the sedimentation tank, with the transmission frame fixed to the telescopic rods of two electric push rods; a filter screen plate fixed to the inner wall of the housing; and a trigger assembly disposed between the sedimentation tank and the transmission frame.

[0016] Preferably, the triggering assembly includes a rack fixed to the transmission frame, several rotating shafts rotatably connected to the sedimentation tank, several overrunning clutches fixed to the several rotating shafts, several gears fixed to the outer rings of the several overrunning clutches, the rack meshing with the leftmost gear, and several cams fixed to the several rotating shafts.

[0017] Preferably, a blowing frame is also included, which is disposed on the upper part of the filter screen.

[0018] The beneficial effects of this utility model are as follows: 1. When the liquid level rises to the oil outlet of the sedimentation tank, the upper layer of oil will gradually flow into the oil collection hopper. The oil scraper will accelerate the scraping of the upper layer of oil into the oil collection hopper. The gear drives the cam through the overrunning clutch and the rotating shaft to press the control switch, so that the servo motor drives the notched roller to rotate one revolution, so that the debris settled on the notched roller falls onto the filter screen and is separated from the coolant. This makes it easy to separate oil and debris at the same time, reduce the time spent on circulating liquid purification, improve circulation efficiency, and reduce the contact between debris and oil during separation, thereby improving the cleanliness of the debris after recovery.

[0019] 2. By continuously feeding high-pressure gas into the blowing frame by the staff, the high-pressure gas is sprayed out from the nozzle of the blowing frame and blows the debris on the filter screen towards the discharge port on one side of the shell. This intermittently blows the debris on the filter screen, reducing the probability of excessive debris accumulation on the filter screen and weakening the filtration effect, and facilitating continuous operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a cross-sectional view of the liquid guiding plate, filter screen plate, and scraping mechanism of this utility model.

[0022] Figure 3 This is a cross-sectional view of the degreasing mechanism and the dandruff removal mechanism of this utility model.

[0023] Figure 4 This is an exploded view of the sedimentation tank and oil removal mechanism of this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the sedimentation tank and the descaling mechanism of this utility model.

[0025] Figure 6 This is an exploded view of the dandruff removal mechanism of this utility model.

[0026] Reference numerals: 1_Base frame, 2_Shell, 3_Inlet hopper, 4_Sedimentation tank, 5_Guide plate, 6_Circulation pump, 71_Electric push rod one, 72_Oil scraper, 73_Oil collection hopper, 74_Oil-water separator, 81_Notched roller, 82_Servo motor, 83_Control switch, 84_Transmission frame, 841_Filter screen, 85_Rack and pinion, 86_Rotating shaft, 87_Overrunning clutch, 88_Gear, 89_Cam, 9_Blowering frame. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1: A coolant circulation device for CNC machining, such as Figures 1-6 As shown, it includes, base frame 1;

[0029] The housing 2 is fixed to the top of the base frame 1, and a discharge port is opened on one side of the housing 2;

[0030] The liquid inlet 3 is fixed to the top of the housing 2 and is connected to the housing 2;

[0031] A sedimentation tank 4 is fixed to the top of the inner wall of the shell 2. The sedimentation tank 4 is located below the liquid inlet hopper 3. An oil outlet is opened on one side of the sedimentation tank 4. The bottom of the sedimentation tank 4 is open.

[0032] Liquid guide plate 5 is fixed to the lower part of the inner wall of shell 2;

[0033] A circulation pump 6 is fixed to one side of the housing 2, and the inlet of the circulation pump 6 is connected to the housing 2;

[0034] The oil removal mechanism is installed on the shell 2 and the sedimentation tank 4, and the oil removal mechanism is used to remove oil stains in the coolant;

[0035] The chip removal mechanism is installed on the shell 2, the sedimentation tank 4 and the oil removal mechanism, and is used to remove waste chips in the coolant.

[0036] The liquid guide plate 5 is set at an angle.

[0037] The oil removal mechanism includes two electric push rods 71 ​​fixed to the top of the inner wall of the housing 2, which are symmetrically arranged. The telescopic rods of the two electric push rods 71 ​​pass through the sedimentation tank 4. An oil scraper 72 is fixed between the telescopic rods of the two electric push rods 71. The oil scraper 72 is bent and its lowest point is slightly lower than the lowest point of the oil outlet of the sedimentation tank 4. An oil collecting hopper 73 is fixed to one side of the sedimentation tank 4 and covers the oil outlet of the sedimentation tank 4. An oil-water separator 74 is fixed to the top of the inner wall of the housing 2. The inlet of the oil-water separator 74 is fixed to and connected to the oil collecting hopper 73. The outlet pipe of the oil-water separator 74 faces the guide plate 5.

[0038] The flaking mechanism includes: several notched rollers 81 rotatably connected to the bottom of the sedimentation tank 4, the notched rollers 81 being evenly spaced and adjacent notched rollers 81 being tightly fitted together; several servo motors 82 fixed to one side of the sedimentation tank 4, the output shafts of the servo motors 82 being fixed to the notched rollers 81; several control switches 83 fixed to one side of the sedimentation tank 4, the control switches 83 being electrically connected to the servo motors 82; a transmission frame 84 slidably connected to the upper part of the sedimentation tank 4, the transmission frame 84 being fixed to the telescopic rods of two electric push rods 71; a filter screen plate 841 fixed to the inner wall of the housing 2, the filter screen plate 841 being inclined and located below the sedimentation tank 4; and a triggering component disposed between the sedimentation tank 4 and the transmission frame 84.

[0039] The triggering assembly includes a rack 85 welded to a transmission frame 84, several rotating shafts 86 rotatably connected to a sedimentation tank 4, several overrunning clutches 87 fixed to the several rotating shafts 86, several gears 88 fixed to the outer rings of the several overrunning clutches 87, the rack 85 meshing with the leftmost gear 88, and several cams 89 fixed to the several rotating shafts 86. The rack 85 drives the rotating shafts 86 to rotate through the gears 88 and the overrunning clutches 87, thereby pressing the control switch 83 through the cams 89.

[0040] Initially, the inlet hopper 3 is located below the coolant recovery outlet of the CNC machining center, and the outlet of the oil-water separator 74 faces the guide plate 5. The oil outlet pipe of the oil-water separator 74 is connected to the oil collection pump. After starting work, the recovered coolant flows into the sedimentation tank 4 through the inlet hopper 3. Several closely arranged notched rollers 81 cover the opening at the bottom of the sedimentation tank 4, thereby limiting the coolant flow. Due to the difference in density, oil will float on the upper layer of the liquid surface, while waste will settle on the notched rollers 81. When the liquid level rises to the oil outlet of the sedimentation tank 4, the upper layer of oil will gradually flow into the oil collection hopper 73. At this time, the operator starts the oil-water separator 74 and the circulation pump 6, and controls the extension of the electric push rod 71. The retraction rod retracts, and the telescopic rod of the electric push rod 71 drives the oil scraper 72 and the transmission frame 84 to move. The oil scraper 72 accelerates the scraping of the upper layer of oil into the oil collection hopper 73. The transmission frame 84 drives the rack 85 to move, and the rack 85 drives each gear 88 to rotate one revolution. The gear 88 drives the cam 89 to rotate through the overrunning clutch 87 and the rotating shaft 86. The rotation of the cam 89 presses the control switch 83, causing the servo motor 82 to drive the notched roller 81 to rotate one revolution, causing the debris deposited on the notched roller 81 to fall onto the filter screen 841 and separate from the coolant. Through the above operation, it is possible to separate oil and debris simultaneously, reduce the time spent on circulating fluid purification, improve circulation efficiency, and reduce the need for further processing. The separation of debris and oil improves the cleanliness of the recovered debris. As debris accumulates on the filter screen 841, it gradually moves downwards under gravity and is discharged through the outlet on one side of the housing 2. After passing through the filter screen 841, the coolant falls onto the guide plate 5 under gravity. The separated oil enters the oil-water separator 74 through the oil collection hopper 73. The oil-water separator 74 separates the oil from the small amount of coolant contained therein. The separated oil is pumped away by the collection pump through the oil outlet pipe, and the separated coolant falls onto the guide plate 5 through the outlet of the oil-water separator 74. The guide plate 5 guides the coolant on it to the circulation pump 6. At the inlet, the circulation pump 6 pumps the purified coolant back to the CNC machining center for reuse. After scraping off the oil once, the operator controls the extension rod of the electric push rod 71 to extend and reset. The extension rod of the electric push rod 71 drives the oil scraper 72 and the transmission frame 84 to move in the opposite direction. The transmission frame 84 drives the rack 85 to move in the opposite direction. The rack 85 drives each gear 88 to rotate in the opposite direction one revolution. Under the action of the overrunning clutch 87, the rotating shaft 86 will not rotate. Then, the operator controls the electric push rod 71 to continue to extend and retract, continuously separating the oil and debris from the coolant. After the work is completed, the operator turns off the electric push rod 71, the circulation pump 6, and the oil-water separator 74.

[0041] Example 2: Based on Example 1, such as Figure 2 and Figure 3As shown, it also includes a blowing frame 9 disposed on the upper part of the filter screen plate 841, which is used to blow the debris on the filter screen plate 841 toward the discharge port of the housing 2.

[0042] Initially, the blowing frame 9 is connected to the high-pressure air supply system. After the work begins, the operator continuously introduces high-pressure gas into the blowing frame 9. The high-pressure gas is sprayed out from the nozzle of the blowing frame 9 and blows the debris on the filter screen 841 toward the discharge port on one side of the housing 2. Through the above operation, the debris on the filter screen 841 can be blown away intermittently, reducing the probability of excessive debris accumulation on the filter screen 841, which would weaken the filtration effect and facilitate continuous work. After the work is completed, the operator stops introducing high-pressure gas into the blowing frame 9.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A coolant circulation device for CNC machining, characterized in that, Includes, base frame (1); The housing (2) is fixed to the top of the base frame (1), and a discharge port is opened on one side of the housing (2); Liquid inlet hopper (3) fixed to the top of the shell (2); A sedimentation tank (4) is fixed to the top of the inner wall of the shell (2), and an oil outlet is opened on one side of the sedimentation tank (4); Liquid guide plate (5) fixed to the lower part of the inner wall of the shell (2); A circulation pump (6) is fixed to one side of the housing (2); The oil removal mechanism is installed on the shell (2) and the sedimentation tank (4); The dander removal mechanism is installed on the shell (2), the sedimentation tank (4) and the degreasing mechanism.

2. The coolant circulation device for CNC machining according to claim 1, characterized in that, The liquid guide plate (5) is set at an angle.

3. The coolant circulation device for CNC machining according to claim 1, characterized in that, The oil removal mechanism includes two electric push rods (71) fixed to the top of the inner wall of the housing (2), an oil scraper (72) fixed between the telescopic rods of the two electric push rods (71), the lowest point of the oil scraper (72) being slightly lower than the lowest point of the oil outlet of the sedimentation tank (4), an oil collection hopper (73) fixed to one side of the sedimentation tank (4), and an oil-water separator (74) fixed to the top of the inner wall of the housing (2), the inlet of the oil-water separator (74) being fixed and connected to the oil collection hopper (73).

4. A coolant circulation device for CNC machining according to claim 3, characterized in that, The flaking mechanism includes several notched rollers (81) rotatably connected to the bottom of the sedimentation tank (4), several servo motors (82) fixed to one side of the sedimentation tank (4), the output shaft of the servo motors (82) being fixed to the notched rollers (81), several control switches (83) fixed to one side of the sedimentation tank (4), the control switches (83) being electrically connected to the servo motors (82), a transmission frame (84) slidably connected to the upper part of the sedimentation tank (4), the transmission frame (84) being fixed to the telescopic rods of two electric push rods (71), a filter screen plate (841) fixed to the inner wall of the housing (2), and a trigger assembly disposed between the sedimentation tank (4) and the transmission frame (84).

5. A coolant circulation device for CNC machining according to claim 4, characterized in that, The triggering assembly includes a rack (85) fixed to the transmission frame (84), a plurality of rotating shafts (86) rotatably connected to the sedimentation tank (4), a plurality of overrunning clutches (87) fixed to the plurality of rotating shafts (86), a plurality of gears (88) fixed to the outer ring of the plurality of overrunning clutches (87), the rack (85) meshing with the leftmost gear (88), and a plurality of cams (89) fixed to the plurality of rotating shafts (86).

6. A coolant circulation device for CNC machining according to claim 5, characterized in that, It also includes a blower (9) located on the upper part of the filter screen (841).

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