Magnetic chip removal filtering device

Abstract

The utility model belongs to the technical field of chip removal machines, and particularly relates to a magnetic chip removal filtering device which comprises a scraper chip removal machine, a water tank and a magnetic roller. A scraper blade is arranged in the scraper blade chip removal machine, the scraper blade chip removal machine is arranged above the water tank, the magnetic roller is arranged in the water tank, the axis direction of the magnetic roller is parallel to the moving direction of the scraper blade in a horizontal section, and the scraper blade is in contact with the magnetic roller. According to the magnetic chip removal filtering device, the magnetic roller is adopted as a magnetic adsorption source, the scraper chip removal machine is installed above the magnetic roller in the length direction of the magnetic roller, and cuttings adsorbed by the magnetic roller are collected and conveyed through the scraper chip removal machine. The cuttings of the magnetic roller will be subjected to vacant backflow in the process of waiting for scraping and conveying of the scraping plate, coercing and entrainment of the cuttings liquid in the scraping process can be reduced, and the recycling rate of the cutting fluid is higher than that of a traditional scraping plate chip removing and filtering device.

Description

Technical Field

[0001] The utility model relates to a magnetic chip removal filter device, belonging to the technical field of chip removal machines. Background Art

[0002] At present, magnetic scraper chip removal and filtering devices are widely used in the discharge and filtration of wet machining chips in China. As the mainstream chip removal and filtering method, they have been used for chip removal in domestic and international machine tools for a long time. The traditional magnetic scraper chip removal and filtering device only focuses on chip removal. The filtering is generally achieved with the help of the filter unit added later. The filter unit is divided into two types: manual cleaning and automatic cleaning. The bottom plate of the traditional magnetic scraper chip conveyor is made of stainless steel. A magnetic block box is welded on the lower part of the stainless steel bottom plate, and the magnetic blocks are filled inside. The cast iron and steel chips wrapped in the chip liquid are absorbed through the stainless steel bottom plate by magnetic force, and then the chips adsorbed on the bottom plate are collected and discharged by the chain-driven stainless steel scraper. In this collection process, if the weight of the chips is too light, even if a strong magnet is installed at the bottom of the chip conveyor, not all the chips can be adsorbed. The chips will tumble with the cutting fluid and cannot be quickly adsorbed on the working bottom surface of the scraper. At this time, the tumbling chips will cause a filtering burden on the embedded filter unit, which will increase the blockage rate of the filter unit and require frequent manual maintenance of the filter unit. Even if a recoil drum filter unit with a self-cleaning function is used, some needle-shaped tiny chips will still enter the filter water tank. After a period of use, due to the slowdown of the flow rate in the water tank, a large amount of chips will settle at the bottom of the water tank. Users also need to frequently clean and maintain the water tank. If it is not cleaned for a long time, there will be more and more deposited chips around the non-water pump suction port, causing a sharp decrease in the water tank volume, affecting the normal operation of the entire machine tool flushing system.

[0003] The existing magnetic scraper chip removal and filtering device can basically meet the needs of users when the chips are large, heavy, and the horizontal length of the chip conveyor is long enough to allow the chips to settle during transportation. However, when a certain type of machine tool appears, such as a broaching machine, the traditional magnetic scraper chip removal and filtering device cannot meet its use needs. The broaching machine uses the layer picking mode of the broaching tool to complete the rough and fine processing of the workpiece by clamping it once, achieving efficient and high-precision delivery. The chips produced by the broaching machine are different from those produced by turning, milling, drilling and grinding in ordinary machining centers. Most of the chips produced by the broaching machine are small flakes or needles with a diameter of 1-3mm, a length of 1-5mm and a thickness of only 10-50μm. The processing methods of the broaching machine are divided into cold drawing and hot drawing. However, in order to obtain higher processing accuracy, most broaching machines use cold drawing technology. In the cold drawing process, heavy-duty broaching oil is required to flush the chip fluid. Under the flushing of the oil, the light-weight broaching chips will be suspended in large quantities. At the same time, the vertical broaching processing method of the broaching machine is The broaching machine itself occupies a small space with small length and width, but a high height (because the height is affected by the working length of the broach). Therefore, most broaching machines are located on a fixed base in a pit at a depth of -2 to -3 meters. Therefore, the chip removal filter device must also be installed in the pit, which limits the external dimensions of the chip removal filter device. Since the excavation size of the pit or the factory space on the ground cannot be increased indefinitely in order to obtain the settling time of the chips, the development of a chip removal filter device with a compact structure, fast chip removal, and reduced waste of chip fluid is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] The utility model aims at solving the defects of the prior art and provides a magnetic chip removal and filtering device.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A magnetic chip removal and filtering device comprises a scraper chip conveyor, a water tank and a magnetic roller; a scraper is provided inside the scraper chip conveyor, the scraper chip conveyor is arranged above the water tank, the magnetic roller is arranged in the water tank, the axial direction of the magnetic roller is parallel to the movement direction of the horizontal section of the scraper, and the scraper is in contact with the magnetic roller.

[0007] The beneficial effect of the utility model is that the magnetic chip removal and filtering device of the utility model adopts a magnetic roller as a magnetic adsorption source, and a scraper chip conveyor is installed above the magnetic roller along the length direction of the magnetic roller, and the scraper chip conveyor is used to collect and transport the chips adsorbed by the magnetic roller. The scraper of the scraper chip conveyor scrapes the chips adsorbed on the surface of the magnetic roller once and continuously, and then collects and transports them to the chip cart. The chips of the magnetic roller will return the cutting fluid to an idle state while waiting for the scraper to scrape and transport them. Therefore, the chips collected by the scraper are not scraped out from the cutting fluid, which can reduce the entrainment of the chip fluid during the scraping process, and the recycling rate of the cutting fluid is higher than that of the traditional scraper chip removal and filtering device. The chip liquid filtered by the magnetic chip removal filter device of the utility model reduces the adsorbable chips as much as possible, and because the broaching machine processing is only a material reduction operation, no chips of other properties are mixed in. Therefore, the chip precipitation in the liquid tank is effectively avoided, and the frequent maintenance in the later stage is reduced. The service life of the fine filtration booster water pump and the fine filtration device is long-term improved, and the maintenance and servicing costs of users are reduced.

[0008] On the basis of the above technical solution, the present invention can also make the following improvements:

[0009] Furthermore, the magnetic roller includes a roller body, a roller drive shaft, a roller power mechanism and a magnetic material circumferentially installed on the inner wall of the roller body. The roller body is installed on the roller drive shaft, and the roller power mechanism drives the roller drive shaft to rotate.

[0010] The beneficial effects of adopting the above further technical solution are: magnetic material is installed on the entire length and circumference of the inner side of the drum body, so that the outer wall of the overall magnetic drum can absorb cast iron chips and steel chips; the rolling drive shaft is driven to rotate by the drum power mechanism, thereby driving the drum body to rotate.

[0011] Furthermore, the magnetic material is a tile-shaped magnetic steel, the curvature of the magnetic material is matched with the curvature of the drum body, and the length of the magnetic material is matched with the length of the drum body.

[0012] The beneficial effect of adopting the above-mentioned further technical scheme is: the magnetic material adopts a tile-shaped structure, so that the magnetic material is fully arranged on the inner circumference of the drum body, and the magnetic material fits tightly and without gaps, and has strong magnetic conductivity. Large flaky chips can be adsorbed on the surface of the drum body, and the scraper chip conveyor is used to directional chip removal along the axis of the magnetic drum. The adsorbed chips are scraped out along the axial direction, and the chip liquid contained in the chips can directly seep back into the filter cavity on both sides of the drum body surface to avoid excessive liquid in the discharged chips.

[0013] Furthermore, end covers are provided at both ends of the drum body, and both ends of the drum drive shaft are fixedly mounted on the end covers.

[0014] Furthermore, both ends of the drum drive shaft are installed in the water tank through bearing seats, and one end of the drum drive shaft is transmission-connected to the drum power mechanism.

[0015] The beneficial effect of adopting the above-mentioned further technical solution is: a drum drive shaft is provided inside the drum body, end covers are installed on both sides, the drum drive shaft is installed in the filter flow channel through bearing seats at both ends, and one end of the drum drive shaft is driven to rotate through an independent drum power mechanism to achieve continuous rotation and adsorption of the magnetic drum.

[0016] Furthermore, the drum body and the end cover are both made of stainless steel.

[0017] The beneficial effects of adopting the above-mentioned further technical solution are: the drum body and the end cover are made of stainless steel cylinders, which prevent the drum body and the end cover from being magnetized after long-term use, and the chips are adsorbed and cannot fall off, and tile-shaped magnetic material is installed on the inner circumference of the drum body, so that the outer wall of the overall magnetic drum can adsorb cast iron chips and steel chips.

[0018] Furthermore, the water tank is provided with a chip fluid inlet and a chip outlet, the scraper chip conveyor comprises a chip conveyor housing, a scraper and a scraper conveying mechanism are arranged in the chip conveyor housing, the chip conveyor housing comprises a chip conveyor bottom plate, and the chip conveyor bottom plate is provided with a chip inlet.

[0019] Furthermore, the top height of the magnetic roller is higher than the height of the chip outlet, the top height of the magnetic roller is consistent with the height of the bottom plate of the chip conveyor, the chip inlet is rectangular, the length of the chip inlet is matched with the length of the magnetic roller, one side of the chip inlet is tangent to the roller body of the magnetic roller, and during the rotation of the magnetic roller, one side of the chip inlet can scrape the chips off the magnetic roller, and one side of the chip inlet is tangent to the roller body to prevent the chips from falling into the clean chip liquid after scraping. Since the chips have an accumulation bow height after being adsorbed by the magnetic roller, when one side of the chip inlet is tangent to the roller body of the magnetic roller, the other side of the chip inlet needs to cross the accumulation bow height to avoid hindering the chips from entering the scraper working area after adsorption. Therefore, the width of the chip inlet needs to be set to be greater than the chip accumulation height after adsorption.

[0020] The beneficial effect of adopting the above-mentioned further technical scheme is: a bottom plate of a scraper chip conveyor device is arranged on the top of the magnetic roller, and a rectangular chip entry opening is opened on the bottom plate. The width of the chip entry opening is greater than the height of the chips after adsorption, and the length of the chip entry opening is equal to the length of the magnetic roller. By adjusting the fixed feet of the scraper chip conveyor, the bottom plate of the scraper chip conveyor is made tangent to the contact surface of the magnetic roller and then locked and fixed. The scraper chain is driven by an independent motor of the scraper chip conveyor to drive the scraper to run. The scraper scrapes the chips adsorbed on the surface of the magnetic roller once and continuously, and then collects and transports them to the chip cart. The horizontal section bottom plate and scraper of the scraper chip conveyor of the utility model need to be made of stainless steel to avoid the chips being adsorbed and unable to fall off after long-term magnetization.

[0021] Furthermore, the cutting fluid inlet is provided with a guide cover, which includes a straight guide section and an arc-shaped guide section. The magnetic roller is arranged in the arc-shaped guide section. The curvature and length of the arc-shaped guide section are adapted to the magnetic roller, and the magnetic roller is arranged parallel to and spaced from the arc-shaped guide section.

[0022] The beneficial effect of adopting the above-mentioned further technical scheme is: the magnetic roller is installed inside the groove of the arc-shaped filtering flow channel formed by the arc-shaped guide section of the deflector, and the arc-shaped guide sections are arranged in parallel and spaced apart to form equally spaced flow channels within the groove stroke. As long as the width of the flow channel is ensured to be less than the magnetic working range of the magnetic material, the cutting fluid passing through the flow channel containing adsorbable cast iron or steel chips will be adsorbed to the surface of the magnetic roller, and run to the bottom of the scraper with the rotation of the magnetic roller, and be enriched by the chip shoveling action of the scraper. The magnetic roller is installed at a height higher than the chip outlet, that is, higher than the water tank cover. The enriched chips are not scraped out from the cutting fluid, which can reduce the entrainment of the chip fluid during the scraping process, and the recycling rate of the cutting fluid is higher than that of the traditional scraper chip removal and filtering device.

[0023] Furthermore, a splash guard is provided between the cutting fluid inlet and the magnetic roller, and the length of the splash guard is adapted to that of the magnetic roller.

[0024] The beneficial effect of adopting the above further technical solution is to prevent the cutting fluid entering the water tank from the cutting fluid inlet from directly impacting the magnetic roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional view of the utility model;

[0026] Figure 2 For the utility model Figure 1 AA section view of the.

[0027] The accompanying drawings are marked as follows: 1. Scraper chip conveyor; 11. Scraper; 12. Chip conveyor housing; 13. Scraper conveying mechanism; 14. Chip conveyor bottom plate; 2. Magnetic roller; 21. Roller body; 22. Roller drive shaft; 23. Roller power mechanism; 231. Roller drive reducer; 232. Roller driving sprocket; 233. Roller driven sprocket; 234. Roller drive chain; 24. Magnetic material; 25. End cover; 3. Water tank; 31. Chip liquid inlet; 33. Guide cover; 331. Straight guide section; 332. Arc guide section; 34. Splash baffle. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] See also Figure 1-2 A magnetic chip removal and filtering device comprises a scraper chip conveyor 1, a water tank 3 and a magnetic roller 2; a scraper 11 is provided in the scraper chip conveyor 1, the scraper chip conveyor 1 is arranged above the water tank 3, the magnetic roller 2 is arranged in the water tank 3, the axial direction of the magnetic roller 2 is parallel to the movement direction of the horizontal section of the scraper 11, and the scraper 11 is in contact with the magnetic roller 2.

[0030] The magnetic roller 2 includes a roller body 21, a roller drive shaft 22, a roller power mechanism 23 and a magnetic material 24 circumferentially installed on the inner wall of the roller body 21. The roller body 21 is installed on the roller drive shaft 22, and the roller power mechanism 23 drives the roller drive shaft 22 to rotate.

[0031] The magnetic material 24 is a tile-shaped magnetic steel. The curvature of the magnetic material 24 matches the curvature of the drum body 21 , and the length of the magnetic material 24 matches the length of the drum body 21 .

[0032] End covers 25 are provided at both ends of the drum body 21 , and both ends of the drum driving shaft 22 are fixedly mounted on the end covers 25 .

[0033] The two ends of the drum drive shaft 22 are installed in the water tank 3 through bearing seats. Specifically, a drum fixed shell is relatively arranged in the water tank 3, and the bearing seats are installed on the drum fixed shell, so that the two ends of the drum drive shaft 22 are rotatably installed on the drum fixed shell, and one end of the drum drive shaft 22 is transmission-connected with the drum power mechanism 23. The present utility model does not limit the drum power mechanism 23. As a preferred embodiment of the present utility model, the drum power mechanism 23 of this embodiment is a drum drive reducer 231, and the output end of the drum drive reducer 231 is provided with a drum driving sprocket 232, and the end of the drum drive shaft 22 is provided with a drum driven sprocket 233, and the drum driving sprocket 232 and the drum driven sprocket 233 are transmission-connected through a drum drive chain 234.

[0034] The drum body 21 and the end cover 25 are both made of stainless steel.

[0035] The water tank 3 is provided with a chip liquid inlet 31 and a chip outlet. The scraper chip conveyor 1 includes a chip conveyor housing 12. A scraper 11 and a scraper conveying mechanism 13 are provided in the chip conveyor housing 12. The chip conveyor housing 12 includes a chip conveyor bottom plate 14. The chip conveyor bottom plate 14 is provided with a chip inlet.

[0036] The top height of the magnetic roller 2 is higher than the height of the chip outlet, and the top height of the magnetic roller 2 is consistent with the height inside the chip conveyor bottom plate 14. The chip inlet is rectangular, and the length of the chip inlet is matched with the length of the magnetic roller 2. One side of the chip inlet is tangent to the roller body 21 of the magnetic roller 2. After the chips are adsorbed by the magnetic roller 2, there is an accumulation bow height. When one side of the chip inlet is tangent to the roller body 21 of the magnetic roller 2, the other side of the chip inlet needs to cross the accumulation bow height to avoid hindering the chips from entering the working area of ​​the scraper 11 after adsorption. Therefore, the width of the chip inlet needs to be set to be greater than the chip accumulation height after adsorption.

[0037] The chip liquid inlet 31 is provided with a guide cover 33, and the guide cover 33 includes a straight guide section 331 and an arc guide section 332. The magnetic roller 2 is arranged in the arc guide section 332. The curvature and length of the arc guide section 332 are adapted to the magnetic roller 2, and the magnetic roller 2 and the arc guide section 332 are arranged parallel and spaced apart.

[0038] A splash shield 34 is provided between the cutting fluid inlet 31 and the magnetic roller 2 , and the length of the splash shield 34 is adapted to that of the magnetic roller 2 .

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic chip removal filter device, characterized in that: It includes a scraper chip conveyor, a water tank and a magnetic roller; the scraper chip conveyor is provided with a scraper, the scraper chip conveyor is arranged above the water tank, the magnetic roller is arranged in the water tank, the axial direction of the magnetic roller is parallel to the movement direction of the scraper in the horizontal section, and the scraper is in contact with the magnetic roller.

2. The magnetic chip removal filter device according to claim 1, characterized in that: The magnetic roller comprises a roller body, a roller drive shaft, a roller power mechanism and a magnetic material circumferentially installed on the inner wall of the roller body. The roller body is installed on the roller drive shaft, and the roller power mechanism drives the roller drive shaft to rotate.

3. The magnetic chip removal filter device according to claim 2, characterized in that: The magnetic material is a tile-shaped magnetic steel, the curvature of the magnetic material matches the curvature of the roller body, and the length of the magnetic material matches the length of the roller body.

4. The magnetic chip removal filter device according to claim 3, characterized in that: End covers are arranged at both ends of the drum body, and both ends of the drum driving shaft are fixedly mounted on the end covers.

5. The magnetic chip removal filter device according to claim 4, characterized in that: Both ends of the drum driving shaft are installed in the water tank through bearing seats, and one end of the drum driving shaft is transmission-connected to the drum power mechanism.

6. The magnetic chip removal filter device according to claim 5, characterized in that: The roller body and the end cover are both made of stainless steel.

7. The magnetic chip removal filter device according to any one of claims 1 to 6, characterized in that: The water tank is provided with a chip fluid inlet and a chip outlet, the scraper chip conveyor comprises a chip conveyor housing, a scraper and a scraper conveying mechanism are arranged in the chip conveyor housing, the chip conveyor housing comprises a chip conveyor bottom plate, and the chip conveyor bottom plate is provided with a chip inlet.

8. The magnetic chip removal filter device according to claim 7, characterized in that: The top height of the magnetic roller is higher than the height of the chip outlet, the chip inlet is rectangular, the length of the chip inlet matches the length of the magnetic roller, and one side of the chip inlet is tangent to the roller body of the magnetic roller.

9. The magnetic chip removal filter device according to claim 8, characterized in that: The cutting fluid inlet is provided with a guide cover, which includes a straight guide section and an arc guide section. The magnetic roller is arranged in the arc guide section. The curvature and length of the arc guide section are adapted to the magnetic roller, and the magnetic roller is arranged parallel to the arc guide section and spaced apart.

10. The magnetic chip removal filter device according to claim 9, characterized in that: A splash guard is provided between the cutting fluid inlet and the magnetic roller, and the length of the splash guard is adapted to the magnetic roller.

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