CN109603251B

CN109603251B - Cutting fluid circulation system

Info

Publication number: CN109603251B
Application number: CN201811589897.0A
Authority: CN
Inventors: 陆苏; 李亚勇; 王晓霞
Original assignee: Guangdong Evenwin Precision Technology Co Ltd; Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Dongguan Xinmeida Material Technology Co ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2021-07-20
Anticipated expiration: 2038-12-25
Also published as: CN109603251A

Abstract

The invention relates to a cutting fluid circulating system. Comprises a filter box and a filter. The filter box is provided with a liquid inlet pipe connected with the five-axis machining center, and the liquid inlet pipe is used for enabling cutting liquid of the five-axis machining center to enter the filter box; the filter is arranged in the filter box, a liquid outlet pipe connected with the five-axis machining center is arranged on the filter, the liquid outlet pipe is used for enabling the filtered cutting liquid to return to the five-axis machining center, the filter is of a closed structure formed by surrounding of a shell, a filter layer is arranged on the shell, and the filter can move in the filter box to filter in different positions of the filter layer. The filter has the advantages that the filter effect is good, and the flowing resistance of the cutting fluid cannot be increased along with the extension of the filter time.

Description

Cutting fluid circulation system

Technical Field

The invention relates to the technical field of numerical control machining centers, in particular to a cutting fluid circulating system.

Background

The five-axis machining center has high precision and technical content and is specially used for machining complex curved surfaces. The high-precision automobile wheel is widely applied to various fields of automobile manufacturing, logistics, molds, machinery and the like, and plays a very important role in the industries of aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and the like in one country.

Cutting fluids are industrial fluids used to cool and lubricate tools and workpieces during machining. The five-axis machining center has a high requirement on precision, so that the requirement on stability of cutting fluid supply is high. When the traditional cutting fluid supply system circularly supplies cutting fluid, the cutting fluid contains waste particles, and when the cutting fluid is circularly supplied to a machining position by the cutting fluid supply system, the machining precision is influenced; and the accumulation of the chips tends to increase the flow resistance of the cutting fluid in the cutting fluid supply system, resulting in a decrease in the flow rate of the cutting fluid.

Disclosure of Invention

In view of the above, it is necessary to provide a cutting fluid circulation system in order to solve the above problems.

A cutting fluid circulation system comprising:

the cutting fluid feeding device comprises a filter box, a cutter head and a cutter head, wherein the filter box is provided with a liquid inlet pipe connected with a five-axis machining center, and the liquid inlet pipe is used for enabling cutting fluid of the five-axis machining center to enter the filter box; and

locate the filter in the rose box, be equipped with the drain pipe of connecting five-axis machining center on the filter, the drain pipe is used for making the cutting fluid after filtering return five-axis machining center, the filter is by the casing around the closed structure who forms, be equipped with the filter layer on the casing, the filter can remove so that the filter layer filters in different positions in the rose box.

In one embodiment, the housing comprises a partition and at least two sets of filter layers, the filters being movable within the filter box to filter through different filter layers.

In one embodiment, the flow path of the cutting fluid is changed as the filter moves within the filter box to filter through different filter layers or through different locations of the same filter layer.

In one embodiment, a guide cavity for moving the filter along the first direction is arranged in the filter box, and the partition plates are arranged at two ends of the filter along the first direction.

In one embodiment, a cleaning component abutting against the surface of the filter layer is arranged in the filter box, and the cleaning component can scrape off waste scraps attached to the surface of the filter layer along with the movement of the filter in the filter box.

In one embodiment, the cleaning component is a scraper or a brush.

In one embodiment, a drain outlet is arranged at the corner of the filter box.

In one embodiment, the filter box further comprises a driving device which is arranged in the filter box and used for driving the filter to move in the filter box.

In one embodiment, the five-axis machining center further comprises a collecting box arranged at the top of the filter box, and the liquid inlet pipe of the filter box is connected with the five-axis machining center through the collecting box.

In one embodiment, the cutting fluid circulation device further comprises a water pump which is arranged on the liquid outlet pipe and used for providing power for cutting fluid circulation.

Has the advantages that: because the filter can move in the rose box, and can filter in the different positions of filter layer on the filter along with the filter removes in the rose box, and a part of filter layer is when using, and another part of filter layer is in the state of stewing, and under the fluctuation of cutting fluid flow, the filter layer that is in the state of stewing makes the sweeps that adheres to the filter layer surface shake through vibrations and drops, reaches self-cleaning effect, and further, the flow resistance of cutting fluid reduces, and the cutting fluid flow is stable. Because the filter layer can stand still for cleanness after being used for a period of time, the scraps can not be accumulated on the filter layer, and then the scraps blocked in the filter layer can not pass through the filter layer along with liquid flow, thereby improving the filtering effect.

Drawings

FIG. 1 is a schematic view of a cutting fluid circulation system according to an embodiment of the present invention;

FIG. 2 is a schematic view of another operating state of the cutting fluid circulation system shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a driving device in a cutting fluid circulation system according to an embodiment of the present invention;

FIG. 4 is a schematic view of a cutting fluid circulation system according to another embodiment of the present invention;

fig. 5-8 are schematic structural views of the cutting fluid circulation system shown in fig. 4 in different working states, respectively.

Reference numerals: 100. a filter box; 110. a partition wall; 120. a guide cavity; 130. a sewage draining outlet; 140. a liquid inlet pipe; 200. a filter; 210. a housing; 211. a partition plate; 212. a filter layer; 220. a closed space; 230. a liquid outlet pipe; 300. a cleaning assembly; 400. a drive device; 410. a drive chain; 420. a drive wheel; 500. a collection box; 600. scraps; A-D, A1-E1, A2-C2, E2: an inner cavity.

Detailed Description

To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In one embodiment, referring to fig. 1 and 2, a cutting fluid circulation system is used in a five-axis machining center, but may be used in any machine tool requiring filtering of cutting fluid. The cutting fluid circulation system includes a filter tank 100 and a filter 200 provided in the filter tank 100.

The filter box 100 is used to house the filter 200, and provide a stable environment for the filter 200 to work. The filter box 100 is provided with a liquid inlet pipe 140 connected with a five-axis machining center. When the five-axis machining center works, the turning tool is cooled or washed by the cutting fluid, and in the washing process, the cut waste chips 600 enter the filter box 100 along with the cutting fluid through the fluid inlet pipe 140.

The filter 200 is arranged in the filter box 100, the filter 200 is of a shell structure, a closed space 220 separated from the filter box 100 is enclosed by a shell 210, a liquid outlet pipe 230 is arranged on the filter 200, one end of the liquid outlet pipe 230 is communicated with the closed space 220 of the filter 200, and the other end of the liquid outlet pipe is connected with a five-axis machining center. During filtering, the cutting fluid with the waste chips 600 in the filter box 100 is filtered by the filter 200, the waste chips 600 are left in the filter box 100, and the clean cutting fluid enters the closed space 220 and returns to the five-axis machining center through the liquid outlet pipe 230 to be reused for cooling or flushing the turning tool.

The circulation of foretell cutting fluid provides circulation power through setting up the water pump, and in order to prevent that sweeps 600 from causing the damage to the water pump, the water pump sets up on drain pipe 230, that is to say, the cutting fluid through the water pump has passed through the filtration of filter 200 earlier, and the filtering has sweeps 600 to the normal operating of water pump has been guaranteed.

In one embodiment, referring to fig. 1, the filter 200 is a closed structure surrounded by a housing 210, the housing 210 includes a partition 211, such as a metal plate that cannot pass cutting fluid, and a filter layer 212, such as a mesh cloth, for example. In a specific embodiment, the filter 200 has a rectangular parallelepiped shape, and in the state shown in fig. 1, the upper and lower faces of the filter 200 are provided as filter layers 212, and the other faces are provided as separators 211. In another embodiment, in the state shown in fig. 1, the left and right surfaces of the filter 200 are the spacers 211, and the other surfaces are the filter layers 212.

In one embodiment, referring to fig. 1, filter box 100 includes interior chamber a, interior chamber B, interior chamber C, and interior chamber D. Wherein, filter 200 can be in horizontal reciprocating motion in inner chamber D, and inner chamber A and inner chamber B are located inner chamber D upper and lower both ends, are provided with partition wall 110 between inner chamber C and the inner chamber B. That is, the inner chamber D substantially corresponds to the guide chamber 120, and the guide chamber 120 moves the filter 200 in a first direction, which is a horizontal direction as illustrated in the figure. When the filter 200 is located at the left side of the inner chamber D, the flow path of the cutting fluid is shown in the arrow direction of fig. 1; when the filter 200 is located at the right side of the inner chamber D, the flow path of the cutting fluid is shown by the arrow direction in fig. 2. As can be seen from fig. 1 and 2, the flow path of the cutting fluid can be changed as the filter 200 moves in the inner chamber D of the filter box 100. Since the cutting fluid cannot pass through the partition 211, the cutting fluid is filtered by the filter layer 212 below the filter 200 when the filter 200 is positioned at the left side of the cavity D, and is filtered by the filter layer 212 above the filter 200 when the filter 200 is positioned at the right side of the cavity D. When filtering is performed through the filter layer 212 below the filter 200, the waste 600 has a certain self-weight and automatically falls to the bottom of the filter box 100 to a certain extent, so that the waste 600 can be prevented from blocking the filter layer 212 to reduce the flow rate of the cutting fluid during filtering.

In one embodiment, the filter box 100 has a cleaning assembly 300 that abuts the surface of the filter layer 212. Referring to fig. 1, in the embodiment in which the cleaning assembly 300 is provided at the top of the inner chamber D, the cleaning assembly 300 can scrape off the debris 600 attached to the surface of the filter layer 212 at the top of the filter 200 along with the movement of the filter 200 in the filter box 100. In other embodiments, with continued reference to fig. 1, a cleaning assembly 300 may also be provided at the bottom of the inner cavity D, and a cleaning assembly 300 may also be provided at the top of the partition wall 110. For example, the cleaning assembly 300 may be a squeegee or a brush.

In one embodiment, the corner of the filter box 100 is provided with a drain outlet 130. Referring to fig. 1, a drain outlet 130 is provided at a corner of the bottom of the filter tank 100. When the cutting fluid flows, the chips 600 tend to be more easily accumulated at the corners, and by providing the drain outlet 130 at the corners, the chips 600 are more easily cleaned when the filter tank 100 is cleaned.

In one embodiment, referring to fig. 3, a driving device 400 is further disposed in the filter box 100, and the driving device 400 is used for driving the filter 200 to move in the first direction in the filter box 100. The drive means 400 may also be motorized. For example, the driving device 400 includes a transmission chain 410, two ends of the transmission chain 410 are respectively fixed to two ends of the filter 200 along the first direction, and the driving device 400 further includes a driving wheel 420 and a driving motor, the driving wheel 420 is driven by the driving motor to rotate, and the filter 200 is dragged to move along the first direction through the transmission chain 410. The filter 200 may be moved at a low frequency within the filter box 100, and in other embodiments, the driving device 400 may be mechanically pushed or pulled. For example, the driving means 400 may be a push-pull rod having one end connected to the filter 200 and the other end extending out of the filter box 100, and the filter 200 is moved in the filter box 100 by manually pushing the push-pull rod.

In some embodiments, referring to fig. 1, the cutting fluid circulation system further comprises a collection tank 500, the collection tank 500 is disposed on top of the filter tank 100, and the fluid inlet pipe 140 of the filter tank 100 is connected to the five-axis machining center through the collection tank 500. The collecting box 500 is used for storing the cutting fluid on one hand, and on the other hand, the cutting fluid can flow from top to bottom by means of gravity because the position of the collecting box 500 is higher, so that the liquid level of the cutting fluid is higher, and the flowing resistance of the cutting fluid is reduced.

In some embodiments, referring to fig. 4-7, filter box 100 includes internal cavities a1, B1, C1, E1, D1, a2, B2, C2, and E2 therein, wherein filter 200 is capable of horizontal reciprocation in internal cavity D1. Referring to fig. 4, when the filter 200 is positioned at the leftmost side of the D1, the cutting fluid flows through the a1, the D1, the B1, and the C1 in this order, and finally enters the interior of the filter 200 from the right half of the filtration layer 212 below the filter 200. As the filter 200 moves rightward in sequence, the states shown in fig. 5-7 are sequentially reached. Referring to fig. 5, the cutting fluid flows through a1 and enters the filter 200 from the right half of the filter layer 212 above the filter 200. Referring to fig. 6, the cutting fluid passes through a2 and enters the filter 200 from the left half of the filter layer 212 above the filter 200. Referring to fig. 7, the cutting fluid flows through a2, D1, B2, and C2, and finally enters the filter 200 from the filter layer 212 in the lower left half of the filter 200. By moving the filter 200 in the inner chamber D1, the flow path of the cutting fluid can be changed, which in turn causes the cutting fluid to enter the filter 200 from different parts of the filter layer 212, so that the filter layer 212 can be fully utilized. Further, when one part of the filter layer 212 is used, the other part of the filter layer 212 is in a standing state, and under the fluctuation of the cutting fluid flow, the filter layer 212 in the standing state shakes and falls off the waste attached to the surface of the filter layer 212 through vibration, so that the self-cleaning effect is achieved.

Referring to fig. 8, lumens E1 and E2 have a back-flushing effect. The water pump on the liquid outlet pipe 230 is closed, the cutting liquid sequentially passes through A1, D1, B1 and C1 to enter the filter 200 under the action of self weight, then enters the E1 from the left part in the filter layer 212 below the filter 200, and is discharged from the sewage outlet 130 below the E1. Since the cutting fluid enters the filter 200 from the outside to the inside during filtering, the cutting fluid flows out of the filter 200 from the inside to the outside during backwashing, which helps to discharge the waste chips 600 in the filter layer 212. Referring to fig. 8, the cutting fluid passes through the right filter layer 212 to filter the waste chips 600 when entering the filter 200, and thus, during backwashing, no secondary pollution is caused to the left filter layer 212 by the waste chips 600.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cutting fluid circulating system is used for circularly filtering cutting fluid of a five-axis machining center and is characterized by comprising:

the cutting fluid filtering device comprises a filtering box (100), wherein the filtering box (100) is provided with a fluid inlet pipe (140) connected with a five-axis machining center, and the fluid inlet pipe (140) is used for enabling cutting fluid of the five-axis machining center to enter the filtering box (100); and

the cutting fluid filter comprises a filter (200) arranged in a filter box (100), a liquid outlet pipe (230) connected with a five-axis machining center is arranged on the filter (200), the liquid outlet pipe (230) is used for enabling filtered cutting fluid to return to the five-axis machining center, the filter (200) is a closed structure formed by surrounding a shell (210), a filter layer (212) is arranged on the shell (210), the filter (200) can move in the filter box (100) to enable the filter layer (212) to filter at different positions, the shell (210) surrounds a closed space (220) separated from the filter box (100), the cutting fluid with waste chips in the filter box (100) is filtered by the filter (200) to form clean cutting fluid entering the closed space (220), and the clean cutting fluid returns to the five-axis machining center through the liquid outlet pipe (230), including inner chamber A, inner chamber B, inner chamber C and inner chamber D in rose box (100), wherein, filter (200) can horizontal reciprocating motion in the inner chamber D, inner chamber A with inner chamber B is located both ends about inner chamber D, inner chamber C with be provided with the partition wall between the inner chamber B.

2. Cutting fluid circulation system according to claim 1, wherein the housing (210) comprises a partition (211) and filter layers (212), the filter layers (212) being provided in at least two groups, the filters (200) being movable within the filter box (100) for filtering by different filter layers (212).

3. The cutting fluid circulation system according to claim 2, wherein the flow path of the cutting fluid is changed as the filter (200) moves within the filter box (100) to filter through a different filter layer (212) or through a different location of the same filter layer (212).

4. The cutting fluid circulation system according to claim 3, wherein a guide chamber (120) for moving the filter (200) in the first direction is provided in the filter tank (100), and the partition plates (211) are provided at both ends of the filter (200) in the first direction.

5. The cutting fluid circulation system according to claim 1, wherein a cleaning member (300) abutting against the surface of the filter layer (212) is provided in the filter tank (100), and the cleaning member (300) scrapes off the debris (600) adhering to the surface of the filter layer (212) as the filter (200) moves in the filter tank (100).

6. The cutting fluid circulation system of claim 5, wherein the cleaning assembly (300) is a squeegee or a brush.

7. Cutting fluid circulation system according to claim 1, characterized in that a corner of the filter box (100) is provided with a drain outlet (130).

8. The cutting fluid circulation system of claim 1, further comprising a drive means (400) disposed within the filter box (100) for driving movement of a filter (200) within the filter box (100).

9. The cutting fluid circulation system according to any one of claims 1 to 8, further comprising a collection tank (500) provided on top of the filter tank (100), wherein the fluid inlet pipe (140) of the filter tank (100) is connected to the five-axis machining center through the collection tank (500).

10. The cutting fluid circulation system according to any one of claims 1 to 8, further comprising a water pump mounted on the outlet pipe (230) for providing power for the circulation of the cutting fluid.