阅读说明：本技术 一种智能化机床自动排屑系统 (Automatic chip removal system of intelligent machine tool ) 是由 不公告发明人 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种智能化机床自动排屑系统,包括设置在落料台输出端的智能化排屑系统,所述智能化排屑系统包括一底座,底座内具有一个排屑腔,排屑腔内转动安装一排屑管,排屑管通过驱动系统驱动转动,所述驱动系统通过人工控制或者通过机床伺服系统自动控制；排屑管的外部环绕排屑管一圈对称设置有两个集料系统。本发明的排屑系统,其利用一种简单的系统,可达到一个自动排屑与自动集液的功能,同时可以有效去除冷却液中的铁屑,防止微细铁屑回流进入至冷却液存储罐内,并可自动导通过滤孔,防止过滤孔被铁屑的堵塞,并可利用排屑系统自动清洁排屑腔底面,整体结构设计合理,利用同一种结构可以解决诸多的问题。(The invention discloses an automatic chip removal system of an intelligent machine tool, which comprises an intelligent chip removal system arranged at the output end of a blanking table, wherein the intelligent chip removal system comprises a base, a chip removal cavity is arranged in the base, a chip removal pipe is rotatably arranged in the chip removal cavity, the chip removal pipe is driven to rotate by a driving system, and the driving system is controlled manually or automatically by a servo system of the machine tool; two material collecting systems are symmetrically arranged around the chip removal pipe in a circle outside the chip removal pipe. The chip removal system disclosed by the invention can achieve the functions of automatic chip removal and automatic liquid collection by utilizing a simple system, can effectively remove scrap iron in cooling liquid, prevent micro scrap iron from flowing back into the cooling liquid storage tank, automatically conduct the filter hole, prevent the filter hole from being blocked by the scrap iron, automatically clean the bottom surface of the chip removal cavity by utilizing the chip removal system, and solve various problems by utilizing the same structure, and the whole structure is reasonable in design.)

1. The utility model provides an automatic chip removal system of intelligent lathe which characterized in that: the intelligent chip removal system comprises an intelligent chip removal system arranged at the output end of a blanking table, wherein the intelligent chip removal system comprises a base, a chip removal cavity is formed in the base, a chip removal pipe is rotatably arranged in the chip removal cavity, the chip removal pipe is driven to rotate through a driving system, and the driving system is manually controlled or automatically controlled through a machine tool servo system;

the outer part of the chip removal pipe is symmetrically provided with two material collecting systems around the chip removal pipe in a circle, each material collecting system comprises a liquid collecting plate with elastic deformation capacity and a slag collecting plate with elastic deformation capacity, a gap cavity is formed between each slag collecting plate and the corresponding liquid collecting plate, each slag collecting plate is provided with a slag collecting cavity with an opening at the top, each liquid collecting plate is provided with a liquid collecting cavity with an opening at the top, one side, close to the chip removal pipe, of each liquid collecting cavity is provided with a piece of liquid absorbing cotton, the top of each liquid absorbing cotton is in end face contact with the lower end face of each slag collecting plate, a position, avoiding the piece of liquid absorbing cotton, on each slag collecting plate is provided with a liquid discharge hole, and a thimble rod is arranged right at the bottom face of the liquid collecting cavity of the liquid discharge hole;

the device comprises a chip removal pipe, a liquid collection cavity, a liquid collection box, a liquid discharge channel, a liquid discharge through hole, a liquid discharge channel and a liquid collection box, wherein the chip removal pipe is provided with a chip removal through groove in butt joint with the chip collection cavity on one side close to the chip collection plate, the chip removal through groove is communicated with a chip removal channel inside the chip removal pipe, the liquid discharge through groove in butt joint with the liquid collection cavity is arranged on one side close to the liquid collection plate, a liquid discharge channel is arranged inside the chip removal cavity just opposite to each liquid discharge through groove, a liquid collection box is arranged on one side close to the output end of the liquid discharge channel, the top surface of the liquid collection box is provided with a filter screen plate, the liquid discharge channel is provided with a liquid discharge through hole just opposite to the liquid collection box, cooling liquid entering the liquid discharge channel is discharged from the liquid discharge through hole and passes through the filter screen plate to enter the liquid collection box for collection, and the output end of the chip removal channel is provided with the chip collection box;

chip removal chamber one side sets up a stop gear perpendicularly, when the system of gathering materials makes the circumferential motion through the chip removal pipe, terminal surface and the crowded press of stop gear contact under the collecting plate among the system of gathering materials to make upwards upset behind collecting plate and the collecting plate elastic deformation.

2. The intelligent machine tool automatic chip removal system according to claim 1, wherein: a spout is seted up respectively to chip removal chamber bottom both sides, set up a soft rubber scraper blade in the spout, terminal surface and chip removal chamber bottom sliding contact under the scraper blade, all be provided with an elastic rubber tube that has deformation resilience in the spout, fill gaseous ejecting back when the elastic rubber tube, it is ejecting towards the discharge gate direction in chip removal chamber with the scraper blade to utilize the elastic rubber tube, the one end and the spout face fixed bonding of elastic rubber tube, the other end and scraper blade fixed bonding, the outside open end of spout forms a spacing borduring, pin elastic rubber tube, the gas storage bag on the stop gear is connected to elastic rubber tube's input.

3. The intelligent machine tool automatic chip removal system according to claim 2, wherein: stop gear includes an elasticity limiting plate and sets up the gas storage bag on elasticity limiting plate, and the gas storage bag has laid the air duct from base inside, and the air duct switches on gas storage bag and two elasticity rubber tube butt joints, and when extrusion gas storage bag, the gas extrusion in the gas storage bag enters into in the elasticity rubber tube and makes the elasticity rubber tube inflation tensile.

4. The intelligent machine tool automatic chip removal system according to claim 1, wherein: the slag collecting plate is provided with a first elastic extending portion on one side of the chip removal pipe, the liquid collecting plate is provided with a second elastic extending portion on one side of the chip removal pipe, and the slag collecting plate and the liquid collecting plate are fixedly connected with the chip removal pipe through the first elastic extending portion and the second elastic extending portion respectively.

5. The intelligent machine tool automatic chip removal system according to claim 1, wherein: the chip removal passageway is inside to form a first slope spigot surface, and it inclines towards album sediment box one side, and iron fillings enter into in the collection sediment box through the direction of first slope spigot surface, and the bottom surface of flowing back passageway is provided with a second slope spigot surface, and the coolant liquid that enters into in the flowing back passageway leads to flowing back through-hole one side through the second slope spigot surface.

6. The intelligent machine tool automatic chip removal system according to claim 1, wherein: the chip removal chamber bottom surface is kept away from actuating system one side and is provided with two backup pads, a first bearing of fixed mounting between two backup pads, and the head fixed mounting of chip removal pipe is in the bearing hole of first bearing, and the other end of chip removal pipe forms a pivot, and the pivot is fixed to be passed the second bearing of embedding setting on the base and is connected one from the driving wheel.

7. The intelligent machine tool automatic chip removal system according to claim 1, wherein: the driving system comprises a driving motor, a driving wheel is installed at the output end of a motor shaft of the driving motor, the driving wheel is connected with a driven wheel through a transmission belt, the driving motor is controlled to be started or stopped through a manual control switch or a servo system, and the driving motor is fixedly installed on a motor fixing table arranged on one side of the base.

Technical Field

The invention relates to the field of machine tools, in particular to an automatic chip removal system of an intelligent machine tool.

Background

The numerical control machine tool often generates scraps in the process of machining parts, the scraps can cause the reduction of the machining precision of the parts if not timely treated, a scrap discharge system is generally installed in the numerical control machine tool for discharging the scraps in the prior art, a large amount of cooling liquid is carried in the scraps due to different particle sizes of the scraps generated in the cutting process, the cooling liquid is often recovered in order to save resources, a filter screen is generally arranged for isolating the scraps and recovering the cooling liquid in order to prevent the scraps from flowing back to a cooling liquid backflow system along with the cooling liquid, but because the particle substances contained in the scraps are different in size, if a filter mesh is arranged to be very small, the filter mesh is easy to block and needs to be frequently cleaned manually, and if the filter mesh is arranged to be normal, the scraps of finer particles can pass through the filter mesh and enter the cooling liquid backflow system, when the chips enter the cooling return system and are discharged again, the chips are contacted with the workpiece, and if the cutter is cutting at the moment, the cutter is possibly contacted with the chips to influence the machining precision.

In addition, the automatic chip removal system that uses always at present adopts a hob to carry the mode, and the hob carries the piece that can only carry some large granules, as for those fine piece, then hardly carries through the hob, and these pieces often dock in the bottom surface in chip removal chamber, then need the manual work to clear away at last, like the chinese utility model patent of patent No. 201821755095.8.

Disclosure of Invention

The invention aims to solve the technical problem that an intelligent automatic chip removal system of a machine tool adopts different automatic chip removal modes, can effectively solve the problem that in the prior art, a large amount of micro chips contained in cooling liquid are recovered to influence the machining precision, and simultaneously solves the problem that the micro chips cannot be removed by the automatic chip removal system.

The invention is realized by the following technical scheme: an intelligent automatic chip removal system of a machine tool comprises an intelligent chip removal system arranged at the output end of a blanking table, wherein the intelligent chip removal system comprises a base, a chip removal cavity is formed in the base, a chip removal pipe is rotatably arranged in the chip removal cavity and is driven to rotate by a driving system, and the driving system is manually controlled or automatically controlled by a machine tool servo system;

the outer part of the chip removal pipe is symmetrically provided with two material collecting systems around the chip removal pipe in a circle, each material collecting system comprises a liquid collecting plate with elastic deformation capacity and a slag collecting plate with elastic deformation capacity, a gap cavity is formed between each slag collecting plate and the corresponding liquid collecting plate, each slag collecting plate is provided with a slag collecting cavity with an opening at the top, each liquid collecting plate is provided with a liquid collecting cavity with an opening at the top, one side, close to the chip removal pipe, of each liquid collecting cavity is provided with a piece of liquid absorbing cotton, the top of each liquid absorbing cotton is in end face contact with the lower end face of each slag collecting plate, a position, avoiding the piece of liquid absorbing cotton, on each slag collecting plate is provided with a liquid discharge hole, and a thimble rod is arranged right at the bottom face of the liquid collecting cavity of the liquid discharge hole;

the device comprises a chip removal pipe, a liquid collection cavity, a liquid collection box, a liquid discharge channel, a liquid discharge through hole, a liquid discharge channel and a liquid collection box, wherein the chip removal pipe is provided with a chip removal through groove in butt joint with the chip collection cavity on one side close to the chip collection plate, the chip removal through groove is communicated with a chip removal channel inside the chip removal pipe, the liquid discharge through groove in butt joint with the liquid collection cavity is arranged on one side close to the liquid collection plate, a liquid discharge channel is arranged inside the chip removal cavity just opposite to each liquid discharge through groove, a liquid collection box is arranged on one side close to the output end of the liquid discharge channel, the top surface of the liquid collection box is provided with a filter screen plate, the liquid discharge channel is provided with a liquid discharge through hole just opposite to the liquid collection box, cooling liquid entering the liquid discharge channel is discharged from the liquid discharge through hole and passes through the filter screen plate to enter the liquid collection box for collection, and the output end of the chip removal channel is provided with the chip collection box;

chip removal chamber one side sets up a stop gear perpendicularly, when the system of gathering materials makes the circumferential motion through the chip removal pipe, terminal surface and the crowded press of stop gear contact under the collecting plate among the system of gathering materials to make upwards upset behind collecting plate and the collecting plate elastic deformation.

As preferred technical scheme, a spout is seted up respectively to chip removal chamber bottom both sides, set up a soft rubber scraper in the spout, terminal surface and chip removal chamber bottom sliding contact under the scraper blade, all be provided with an elastic rubber tube that has deformation resilience in the spout, fill gaseous ejecting back when elastic rubber tube, it is ejecting towards the discharge gate direction in chip removal chamber with the scraper blade to utilize elastic rubber tube, elastic rubber tube's one end and spout face fixed bonding, the other end and scraper blade fixed bonding, the outside open end of spout forms a spacing borduring, pin elastic rubber tube, the gas storage bag on the stop gear is connected to elastic rubber tube's input.

As preferred technical scheme, stop gear includes an elasticity limiting plate and sets up the gas storage bag on the elasticity limiting plate, and the gas storage bag has laid the air duct from the base is inside, and the air duct switches on gas storage bag and two elasticity rubber tube butt joints, and when extrusion gas storage bag, the gas in the gas storage bag is extruded and is entered into in the elasticity rubber tube and make elasticity rubber tube inflation tensile.

As the preferred technical scheme, one side of the slag collecting plate, which is opposite to the chip removal pipe, is provided with a first elastic extension part, one side of the liquid collecting plate, which is opposite to the chip removal pipe, is provided with a second elastic extension part, and the slag collecting plate and the liquid collecting plate are fixedly connected with the chip removal pipe through the first elastic extension part and the second elastic extension part respectively.

As the preferred technical scheme, a first inclined guide surface is formed in the chip removal channel and inclines towards one side of the chip collection box, the iron chips enter the chip collection box through the first inclined guide surface in a guiding mode, a second inclined guide surface is arranged on the bottom surface of the liquid drainage channel, and the cooling liquid entering the liquid drainage channel is guided to one side of the liquid drainage through hole through the second inclined guide surface.

As preferred technical scheme, the drive system one side is kept away from to chip removal chamber bottom surface is provided with two backup pads, a fixed mounting first bearing between two backup pads, and the head fixed mounting of chip removal pipe is in the bearing hole of first bearing, and the other end of chip removal pipe forms a pivot, and the pivot is fixed to pass the second bearing of embedding setting on the base and is connected one from the driving wheel.

As a preferred technical scheme, the driving system comprises a driving motor, a driving wheel is installed at the output end of a motor shaft of the driving motor, the driving wheel is connected with a driven wheel through a transmission belt, the driving motor is started and stopped through a manual control switch or through automatic control of a servo system, and the driving motor is fixedly installed on a motor fixing table arranged on one side of the base.

The invention has the beneficial effects that: according to the invention, various chips are conveyed uniformly, so that the problem that the chips are remained and difficult to convey can be effectively solved; meanwhile, fine chips in the cooling liquid can be effectively isolated, the recovery quality of the cooling liquid is improved, and the influence of the chips in the cooling liquid on the later-stage machining precision is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a top view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a partial enlarged view of the invention at a in fig. 2.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-3, the automatic chip removal system of the intelligent machine tool comprises an intelligent chip removal system arranged at the output end of a blanking table 25, wherein the intelligent chip removal system comprises a base 1, a chip removal cavity 2 is arranged in the base 1, a chip removal pipe 5 is rotatably arranged in the chip removal cavity 2, the chip removal pipe 5 is driven to rotate by a driving system, and the driving system is controlled manually or automatically by a machine tool servo system;

the exterior of the chip removal pipe 5 is symmetrically provided with two aggregate systems 17 around the chip removal pipe in a circle, each aggregate system 17 comprises a liquid collecting plate 171 with elastic deformation capacity and a slag collecting plate 172 with elastic deformation capacity, a gap cavity is formed between each slag collecting plate 172 and the corresponding liquid collecting plate 171, each slag collecting plate is provided with a slag collecting cavity 1711 with an opening at the top, each liquid collecting plate 171 is provided with a liquid collecting cavity 1722 with an opening at the top, one side of each liquid collecting cavity 1722, which is close to the chip removal pipe, is provided with a liquid absorbing cotton 18, the top of each liquid absorbing cotton 18 is in contact with the lower end face of the corresponding slag collecting plate 171, a liquid discharge hole 1712 is arranged on the corresponding slag collecting plate 172, an ejector pin rod 26 is arranged on the bottom face of the liquid discharge hole 1712, when the corresponding slag collecting plate 171 moves relative to the corresponding slag collecting plate 172, the ejector pin rod 26 penetrates through the liquid discharge hole 1712 to further conduct the liquid discharge hole 1712, the purpose of automatically conducting the liquid discharge hole 1712 is achieved, and the blockage of the liquid discharge hole 1712 is prevented, the step of manual cleaning is omitted;

a chip removal through groove 19 which is in butt joint conduction with the slag collecting cavity 172 is formed in one side, close to the slag collecting plate 172, of the chip removal pipe 5, the chip removal through groove 19 is communicated with a chip removal channel 8 in the chip removal pipe 5, a liquid drainage through groove 91 which is in butt joint conduction with the liquid collecting cavity 1722 is formed in one side, close to the liquid collecting plate 171, of the chip removal pipe 5, a liquid collecting box 22 is arranged in the chip removal cavity, close to the output end of the liquid drainage channel, a filter screen plate 16 is arranged on the top surface of the liquid collecting box 22, liquid drainage through holes 11 are formed in positions, opposite to the liquid collecting box 22, of the liquid drainage channels 9, cooling liquid entering the liquid drainage channels 9 is discharged from the liquid drainage through holes 11 and penetrates through the filter screen plate 16 to enter the liquid collecting box 22 for collection, and a slag collecting box (not shown in the drawing) is installed at the output end of the chip removal channel 8;

one side of the chip removal cavity 2 is vertically provided with a limiting mechanism, when the collecting system rotates circularly through the chip removal pipe, the lower end face of the liquid collecting plate in the collecting system is in extrusion contact with the limiting mechanism, and the slag collecting plate 172 and the liquid collecting plate 171 are enabled to overturn upwards after being elastically deformed.

Wherein, a spout is seted up respectively to chip removal chamber bottom surface both sides, set up a soft rubber scraper 15 in the spout, terminal surface and chip removal chamber bottom surface sliding contact under the scraper 15, all be provided with an elastic rubber tube 21 that has deformation resilience ability in the spout, after elastic rubber tube 21 fills gaseous ejecting, utilize elastic rubber tube 21 ejecting 15 discharge gate direction towards the chip removal chamber with the scraper blade, elastic rubber tube's one end and spout face fixed bonding, the other end and scraper blade 15 fixed bonding, the outside open end of spout forms a spacing borduring, pin elastic rubber tube, prevent that elastic rubber tube from aerifing the outside of inflation back by ejecting to the spout, the gas storage bag on the stop gear is connected to elastic rubber tube's input.

The limiting mechanism comprises an elastic limiting plate 6 and a gas storage bag 7 arranged on the elastic limiting plate 6, the gas storage bag 7 is provided with a gas guide pipe 23 from the inside of the base, the gas guide pipe 23 enables the gas storage bag 7 to be in butt joint with two elastic rubber pipes 21, when the gas storage bag 7 is extruded, gas in the gas storage bag 7 is extruded to enter the elastic rubber pipes 21 and enable the elastic rubber pipes 21 to expand and stretch, when the gas storage bag 7 is extruded, the gas in the gas storage bag 7 enables the elastic rubber pipes 21 to stretch, further the scraper 15 moves along the bottom surface of the chip removal cavity, and further chips scattered on the bottom surface of the chip removal cavity are scraped.

Wherein, one side of the slag collecting plate 171 opposite to the chip discharging pipe is provided with a first elastic extending part 1713, one side of the liquid collecting plate 172 opposite to the chip discharging pipe is provided with a second elastic extending part 1723, the slag collecting plate 171 and the liquid collecting plate 172 are respectively fixedly connected with the chip discharging pipe 5 through the first elastic extending part 1713 and the second elastic extending part 1723, the slag collecting plate 171 and the liquid collecting plate 172 are elastically deformed when contacting with a limiting mechanism through the first elastic extending part 1713 and the second elastic extending part 1723, and then the collected chips enter a chip discharging channel through the guidance of the inclined slag collecting plate, the filtered cooling liquid moves towards the liquid absorbing cotton, and the cooling liquid is absorbed in the liquid absorbing cotton in a large amount, because the liquid collecting plate at the bottom is deformed when encountering the limiting mechanism, the slag collecting plate is not deformed, and then rotates along with the continuation of the chip discharging pipe, so that the liquid absorbing cotton between the slag collecting plate and the liquid collecting plate is compressed, after the imbibition cotton compression, its inside coolant liquid then enters into the flowing back passageway, owing to cross the cotton isolation of imbibition too much, so tiny piece can both be kept apart again, can not contain any piece in the coolant liquid of extruding, has promoted the recovery precision of coolant liquid greatly.

In this embodiment, as shown in fig. 1, a first inclined guide surface is formed inside the chip removal channel 8, the first inclined guide surface inclines towards one side of the chip collection box, iron chips enter the chip collection box through the first inclined guide surface, a second inclined guide surface is arranged on the bottom surface of the liquid discharge channel 9, cooling liquid entering the liquid discharge channel is guided to one side of the liquid discharge through hole 11 through the second inclined guide surface, iron chips entering the chip removal channel move and guide towards the external chip collection box through the first inclined guide surface, the structure has the advantage over a spiral conveying structure that the structure can discharge chips with any particle fineness, the chips cannot be accumulated, the chips can be discharged more smoothly, and the overall structure is simplified.

Wherein, the chip removal chamber bottom surface is kept away from actuating system one side and is provided with two backup pads 4, a fixed mounting first bearing 3 between two backup pads 4, the head fixed mounting of chip removal pipe 5 is in the bearing hole of first bearing, the other end of chip removal pipe 5 forms a pivot, the pivot is fixed to pass the second bearing of embedding setting on the base and connect one from driving wheel 14.

In this embodiment, the driving system includes a driving motor 12, a driving wheel (not shown) is installed at the output end of a motor shaft of the driving motor 12, the driving wheel is connected with a driven wheel 14 through a transmission belt, the driving motor is switched on and off through manual control or automatically controlled by a servo system, the driving motor is fixedly installed on a motor fixing table 13 arranged on one side of the base, when the machine tool works, the output end of a blanking table of the machine tool must correspond to an aggregate system, therefore, debris on the blanking table can completely enter a slag collecting plate when being discharged, the position where the slag collecting plate stops keeps parallel to the horizontal plane as far as possible, after slag collecting of the slag collecting plate is completed, the driving motor is controlled by the servo system or manually to act, and then the chip removing hanger is driven to continue rotating, at this time, the elastic deformation occurs when the slag collecting plate contacts with a limiting mechanism, and the purpose of chip removing and liquid collecting is achieved.

The invention has the beneficial effects that: according to the invention, various chips are conveyed uniformly, so that the problem that the chips are remained and difficult to convey can be effectively solved; meanwhile, fine chips in the cooling liquid can be effectively isolated, the recovery quality of the cooling liquid is improved, and the influence of the chips in the cooling liquid on the later-stage machining precision is reduced.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.