Cutting fluid filtering device

Abstract

The invention is applied to the field of machine tool chip removal devices, and particularly relates to a cutting fluid filtering device of a chip removal device. The cutting fluid filtering device is arranged between a chip cleaner and a water tank, the cutting fluid filtering device comprises an auxiliary water tank, a water guide groove, a filtering assembly, a power piece and a connecting piece, one end of the water guide groove is connected with the chip cleaner, the other end of the water guide groove is in lap joint with the auxiliary water tank, the filtering assembly is arranged in the auxiliary water tank, and the power piece is arranged in the auxiliary water tank. The power piece is arranged between the water tank and the auxiliary water tank, and the water tank is connected with the auxiliary water tank through the connecting piece. The device is simple and reliable in structure, the water tank can only receive clean liquid conveyed by the auxiliary water tank, the water tank does not need to be cleaned frequently, meanwhile, the auxiliary water tank serves as a transfer filter, the volume can be adjusted according to the size of a site space, the filtering precision of an auxiliary water tank filtering frame can be adjusted, the auxiliary water tank is not arranged at the bottom of a machine tool, and the filtering net frame can be easily cleaned; and through secondary filtration, the cyclic utilization rate of the cutting fluid is increased.

Description

Technical Field

[0001] The invention is applied to the field of machine tool chip conveyors, and in particular relates to a chip fluid filtering device of a chip conveyor. Background Art

[0002] In order to make use of the water tank chip conveyor which is limited by the space layout, during the machining process, the debris from the chip conveyor passes through the chain plate chip conveyor and falls into the water tank. Limited by the layout space of the machine tool, the water tank cannot be easily pushed out to clean the debris. Some debris will pass through the water tank filter and float to the vicinity of the water pump to block the water pump and cause machining failures. In addition, the machine tool machining must be stopped to clean the water tank, resulting in low production efficiency, high machine tool machining failure rate, and low cutting fluid recycling rate. Summary of the invention

[0003] The invention provides a cutting fluid filtering device, which solves the problems of high machine tool processing failure rate, low production efficiency and low cutting fluid recycling rate in the prior art.

[0004] The objective of the present invention is achieved as follows: a cutting fluid filtering device, the cutting fluid filtering device is arranged between the chip conveyor and the water tank, the cutting fluid filtering device comprises an auxiliary water tank, a water guide groove, a filtering assembly, a power part and a connecting part, one end of the water guide groove is connected to the chip conveyor, and the other end is overlapped with the auxiliary water tank, the filtering assembly is arranged in the auxiliary water tank, the power part is arranged between the water tank and the auxiliary water tank, and the water tank and the auxiliary water tank are connected via the connecting part.

[0005] In one embodiment, the auxiliary water tank includes a clean liquid area and a dirty liquid area, and a liquid channel is provided between the clean liquid area and the dirty liquid area.

[0006] In one embodiment, the filter assembly includes a primary filter element and a secondary filter element, the primary filter element is disposed at the lower end of the water channel, and the secondary filter assembly is disposed at the entrance of the liquid channel.

[0007] In one embodiment, the primary filter element is a filter tank structure, and the bottom surface and side walls of the filter tank are filter plates with a plurality of pores.

[0008] In one embodiment, the bottom surface of the filter tank has at least two layers of filter plates, and the pore sizes of each layer of filter plates are inconsistent.

[0009] In one embodiment, the pores of each layer of filter screen are arranged in a staggered manner.

[0010] In one embodiment, the secondary filter element is a plurality of filter screens, and the plurality of filter screens are inserted in the liquid channel.

[0011] In one embodiment, the water guide groove is arranged at an angle, and a plurality of step structures are arranged on the bottom surface of the water guide groove.

[0012] In one embodiment, the power member is a lift pump.

[0013] The device has a simple and reliable structure and is easy to operate. The water tank can only receive the clean liquid transported by the auxiliary water tank, and there is no need to frequently clean the water tank. At the same time, the auxiliary water tank is used as a transfer filter, and the volume size can be adjusted according to the size of the on-site space. The filtering accuracy of the auxiliary water tank filter frame can be adjusted. The auxiliary water tank is not arranged at the bottom of the machine tool, and the filter frame can be easily cleaned. The secondary filtration improves the recycling rate of the cutting fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the auxiliary water tank structure;

[0015] Figure 2 This is a schematic diagram of the coordination structure between the chip conveyor and the auxiliary water tank;

[0016] Figure 3 This is a schematic diagram of the use of the chip fluid filtering device;

[0017] 100-chip conveyor, 110-water guide trough, 200-cutting fluid filter device, 210-dirty liquid area, 220-secondary filter element, 230-clean liquid area, 240-primary filter element, 250-liquid channel, 260-connecting piece, 270-lifting pump, 280-water tank. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0019] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom end", "top end" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] A cutting fluid filtering device is provided, wherein the cutting fluid filtering device is arranged between a chip conveyor 100 and a water tank 280, and the cutting fluid filtering device comprises an auxiliary water tank, a water guide groove 110, a filtering assembly, a power part and a connecting part 260, wherein one end of the water guide groove 110 is connected to the chip conveyor 100, and the other end is overlapped with the auxiliary water tank, the filtering assembly is arranged in the auxiliary water tank, the power part is arranged between the water tank 280 and the auxiliary water tank, and the water tank 280 and the auxiliary water tank are connected via the connecting part 260.

[0022] The auxiliary water tank includes a clean liquid area 230 and a dirty liquid area 210, and a liquid channel 250 is provided between the clean liquid area 230 and the dirty liquid area 210. The filter assembly is arranged in the auxiliary water tank. The connecting member 260 is a steel hose, and the steel hose connects the water tank and the auxiliary water tank to ensure the circulation of the chip liquid. The auxiliary water tank is a box structure, which can accommodate the chip liquid discharged from the chip conveyor, and the auxiliary water tank is fixedly installed beside the water tank.

[0023] The filter assembly includes a primary filter element 240 and a secondary filter element 220 . The primary filter element 240 is disposed at the lower end of the water guide groove 110 . The primary filter element 240 is a filter trough structure, and the bottom surface and side walls of the filter trough are filter plates with a plurality of pores. The filter plates are plugged into the filter trough structure, and the filter trough structure is arranged in the dirty liquid area 210 of the auxiliary water tank. The cutting fluid discharged from the water guide trough 110 first passes through the filter trough structure for the first filtration. Furthermore, the bottom surface of the filter trough has at least two layers of filter plates, and the pore sizes of each layer of filter plates are inconsistent. The filter plate with larger pores is arranged on the inner side of the filter trough structure, and the filter plate with smaller pores is arranged on the outer side of the filter trough structure. The cutting fluid is first preliminarily filtered through the filter plate with larger pores and then filtered for the second time through the filter plate with smaller pores. Furthermore, the pores of the filter plates are staggered, that is, the holes of the filter plate with larger pores and the filter plate with smaller pores are not arranged concentrically. The filtering effect is further enhanced by the staggered setting of the filter plate pores. Furthermore, the pore sizes of the several filter plates are consistent, and the pores of each layer of the filter are staggered.

[0024] The secondary filter assembly is arranged at the entrance of the liquid channel, and the secondary filter element is a plurality of filter screens, and the plurality of filter screens are plugged into the liquid channel 250. Further, there are at least two filter screens, and the mesh sizes of each filter screen are different. The filter plate with a larger mesh is arranged on the side close to the dirty liquid area 210, and the filter screen with a smaller mesh is arranged on the side close to the clean liquid area 230. The cutting fluid is first filtered through the filter screen with a larger mesh and then filtered through the filter screen with a smaller mesh for a second time.

[0025] The water guide 110 is tilted, and the bottom surface of the water guide 110 is provided with a plurality of step structures for intercepting larger debris particles in the chip fluid. In one embodiment, the step structures are evenly arranged on the bottom surface of the water guide. In one embodiment, the step structures are arranged at a compact spacing at one end away from the auxiliary water tank, and the step structures are arranged at a larger spacing at one end close to the auxiliary water tank. Through the step structures with different spacings, the interception ability of the water guide for debris in the cutting fluid is further enhanced. The water guide 110 is a sheet metal part, and the water guide 110 is installed on the side wall of the chip conveyor 100. The portion where the chip conveyor 100 is connected to the water guide 110 is provided with a plurality of through holes for discharging the cutting fluid inside the chip conveyor 100 to the water guide 110. The water guide 110 can be provided with a plurality of them, all of which are provided on the side wall of the chip conveyor 100. The water guide 110 directly guides the chip fluid generated by machine tool processing from the chip conveyor to the auxiliary water tank.

[0026] The power part is a lifting pump 270, which is connected to the water tank and the auxiliary water tank respectively. The lifting pump 270 provides a negative pressure environment for the cutting fluid filtration in the auxiliary water tank, accelerates the flow of the cutting fluid from the dirty liquid area to the clean liquid area, and at the same time extracts the filtered cutting fluid in the clean liquid area 230 of the auxiliary water tank into the water tank 280 to complete the collection of the filtered cutting fluid. The cutting fluid generated after the processing is completed enters the chip conveyor 100, and is introduced from the outlet of the chip conveyor 100 through the water guide groove 110 to the filter tank structure of the dirty liquid area 210 of the auxiliary water tank. After the primary filtration of the filter tank structure and the secondary filtration through the filter screen in the liquid channel 250, the cutting fluid enters the clean liquid area 230 of the auxiliary water tank, and is finally extracted by the lifting pump 270 and discharged into the water tank through the outlet.

[0027] To clean the auxiliary water tank, you only need to pull out the filter plate and filter screen for cleaning. It is easy to operate.

[0028] The water tank is arranged under the machine tool, and the chip removal part of the chip conveyor is also under the machine tool. To clean the water tank, the water tank needs to be completely pushed out of the machine tool area before it can be cleaned, which occupies a large space area. The present invention adds a secondary water tank in other space areas under the machine tool. During the processing, the chip fluid enters the chip conveyor, and is directly introduced into the filter frame of the secondary water tank through the water guide groove. After being filtered, it enters the clean liquid area of ​​the secondary water tank, and then is lifted to the water tank by the lifting pump to realize the recycling of the cutting fluid.

[0029] The device has a simple and reliable structure and is easy to operate. The water tank can only receive the clean liquid transported by the auxiliary water tank, and there is no need to frequently clean the water tank. At the same time, the auxiliary water tank is used as a transfer filter, and the volume size can be adjusted according to the size of the on-site space. The filtering accuracy of the auxiliary water tank filter frame can be adjusted. The auxiliary water tank is not arranged at the bottom of the machine tool, and the filter frame can be easily cleaned. The secondary filtration improves the recycling rate of the cutting fluid.

[0030] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cutting fluid filter device, the cutting fluid filter device is arranged between a chip conveyor and a water tank, characterized in that: The chip liquid filtering device includes an auxiliary water tank, a water guide groove, a filter assembly, a power part and a connecting part. One end of the water guide groove is connected to the chip conveyor, and the other end is overlapped with the auxiliary water tank. The filter assembly is arranged in the auxiliary water tank, the power part is arranged between the water tank and the auxiliary water tank, and the water tank and the auxiliary water tank are connected through the connecting part.

2. The chip liquid filtering device according to claim 1, characterized in that: The auxiliary water tank comprises a clean liquid area and a dirty liquid area, and a liquid channel is provided between the clean liquid area and the dirty liquid area.

3. The chip liquid filtering device according to claim 2, characterized in that: The filter assembly includes a primary filter element and a secondary filter element. The primary filter element is arranged at the lower end of the water guide groove, and the secondary filter assembly is arranged at the entrance of the liquid channel.

4. The chip liquid filtering device according to claim 3, characterized in that: The primary filter element is a filter tank structure, and the bottom surface and side walls of the filter tank are filter plates with a plurality of pores.

5. The chip liquid filtering device according to claim 4, characterized in that: The bottom surface of the filter tank has at least two layers of filter plates, and the pore sizes of each layer of filter plates are inconsistent.

6. The chip liquid filtering device according to claim 5, characterized in that: The pores of each layer of filter are staggered.

7. The chip liquid filtering device according to claim 3, characterized in that: The secondary filter element is a plurality of filter screens, and the plurality of filter screens are plugged into the liquid channel.

8. The chip liquid filtering device according to claim 1, characterized in that: The water guide groove is arranged obliquely, and a plurality of step structures are arranged on the bottom surface of the water guide groove.

9. The chip liquid filtering device according to claim 1, characterized in that: The power component is a lift pump.

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