CN113953546B

CN113953546B - Cooling liquid recycling device for lathe

Info

Publication number: CN113953546B
Application number: CN202111280655.5A
Authority: CN
Inventors: 郑学军; 窦勇; 李文军; 陈祥波
Original assignee: Kairui Electronics Zhucheng Co ltd
Current assignee: Kairui Electronics Zhucheng Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-10-11
Anticipated expiration: 2041-11-01
Also published as: CN113953546A

Abstract

The invention discloses a cooling liquid recycling device for a lathe, which belongs to the field of filtering devices and comprises a box body, wherein two transverse shafts are rotatably arranged in the box body, two chain wheels are fixedly arranged at the peripheries of the transverse shafts, the left and right adjacent chain wheels are connected through chain transmission, the peripheries of the front and rear two chains are connected through a plurality of strip plates which are uniformly distributed, the tops of the chains are in contact fit with the adjacent sides of the strip plates at the bottom, a row of a plurality of semicircular filtering holes are respectively and uniformly formed in the adjacent sides of the two strip plates, the semicircular filtering holes in the two adjacent strip plates can form a circular filtering hole, a liquid inlet is formed in the top of the box body, a material receiving hopper is arranged between the chains, and the material receiving hopper is fixedly connected with the box body through a supporting rod. The circular filter hole is formed by the two separable semicircular filter holes, so that the semicircular filter holes are separated relatively when the circular filter hole is cleaned, and chips clamped in the circular filter hole can fall off automatically.

Description

Cooling liquid recycling device for lathe

Technical Field

The invention belongs to the field of filtering devices, and particularly relates to a cooling liquid recycling device for a lathe.

Background

The utility model discloses a cooling liquid circulation utilization device for lathe, including the filter plate, the filter plate is used to filter the coolant liquid, the filter plate is used to clean up the filter plate, and clearance complex operation, can't satisfy actual demand, we have invented a cooling liquid circulation utilization device for lathe, and the coolant liquid use amount of current lathe workstation is great, only through the natural precipitation of coolant liquid, then just carry out cyclic utilization with the coolant liquid, be mingled with more smear metal in the coolant liquid, scrape the surface of colored cutting article easily, and lubricated effect is relatively poor, so need filter the back recycle use to the coolant liquid, nevertheless the smear metal in the coolant liquid generally has certain elasticity, block very easily in the filter hole, need regularly clear up the filter plate, and clear up complex operation, can't satisfy actual demand.

Disclosure of Invention

The invention provides a cooling liquid recycling device for a lathe, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

the utility model provides a coolant liquid cyclic utilization device for lathe, the power distribution box comprises a box body, rotate in the box and install two cross axles, two sprockets of fixed mounting are distinguished to the periphery of cross axle, it connects through chain drive to control adjacent sprocket, the periphery of two front and back chains is connected through several evenly distributed's strip shaped plate, the strip shaped plate adjacent side contact cooperation of chain top and bottom, two strip shaped plate adjacent sides evenly set up one row of several semicircle respectively and filter the hole, the semicircle on two adjacent strip shaped plate filters the hole and can constitute circular filtration hole, the inlet is seted up at the top of box, be equipped with between the chain and connect the hopper, it passes through bracing piece fixed connection with the box to connect the hopper, the one end of the lower port fixed connection drain pipe that connects the hopper, the other end of drain pipe passes the lateral wall of box, the row's cinder notch is seted up to one side of box.

According to the coolant recycling device for the lathe, the arc-shaped elastic pieces are arranged in the circular filtering holes, two ends of each arc-shaped elastic piece are fixedly connected with the corresponding semicircular filtering holes respectively, and the convex arcs of the arc-shaped elastic pieces face towards the inner side.

The coolant recycling device for the lathe is characterized in that the vertical pipe is fixedly installed in the liquid inlet, the vertical pipe is internally and rotatably installed with a coaxial cylinder through a one-way bearing, the outer periphery of the cylinder is fixedly connected with the inner periphery of the helical blade, the outer periphery of the helical blade is in sliding contact fit with the inner periphery of the vertical pipe, the rotating rod is installed in the cylinder in a rotating mode, the cylinder is connected with the rotating rod through a torsion spring, the lower end of the rotating rod is fixedly connected with one end of a transverse shifting rod, a protruding block is fixedly installed at the upper end of the rotating rod, a contact switch is fixedly installed in the cylinder, the protruding block can be in contact fit with the contact switch, a driving motor and a storage battery are fixedly installed on one side of the box body, the rotating shaft of the driving motor is fixedly connected with one end of one of the transverse shafts, and the driving motor, the storage battery and the contact switch are connected in series through a circuit.

The coolant recycling device for the lathe comprises a cylinder, wherein the cylinder comprises a round box and a vertical cylinder, the round box is fixedly connected with the vertical cylinder through a connecting pipe, the lower end of the round box is rotatably connected with the upper end of the vertical cylinder through a one-way bearing, the top of the round box is fixedly connected with one end of a conductive sliding ring, the other end of the conductive sliding ring is fixedly connected with the vertical cylinder, and a contact switch is electrically connected with a driving motor and a storage battery through the conductive sliding ring.

The coolant recycling device for the lathe is characterized in that a scraper is fixedly installed in the box body, the scraper is located on the right side above the receiving hopper, one side, facing the scraper, of the strip-shaped plate can be matched with the bottom side of the scraper in a sliding contact mode, the supporting shaft is installed in the box body in a rotating mode, a plurality of baffles are evenly arranged on the periphery of the supporting shaft, one side, close to the supporting shaft, of each baffle is connected with the supporting shaft through a plurality of spring rods, one side, deviating from the supporting shaft, of each baffle can be matched with the top side of the strip-shaped plate at the top of the chain in a close contact mode, one end of the supporting shaft extends out of the box body, the front end and the rear end of each baffle are matched with the inner wall corresponding to the box body in a sliding contact mode, the baffles and the scraper can form a constraint frame with the front wall and the rear wall of the box body, and therefore coolant entering the receiving hopper through the circular filter holes corresponding to the constraint frame.

According to the coolant recycling device for the lathe, the outer end of the supporting shaft is fixedly provided with the first gear, one end of one transverse shaft is fixedly provided with the second gear, and the first gear is meshed with the second gear.

The invention has the advantages that: the circular filter hole is formed by the two separable semicircular filter holes, so that the semicircular filter holes are separated relatively when the circular filter hole is cleaned, and chips clamped in the circular filter hole can fall off automatically. When the cooling liquid circulating device is used, a cooling liquid outlet of a machine tool is connected with a liquid inlet through a pipeline, the other end of a liquid outlet pipe is connected with a cooling liquid inlet of the machine tool through a circulating pump through a pipeline, cooling liquid used by the machine tool can be discharged into a box body through the liquid inlet, the cooling liquid falls onto a strip-shaped plate at the top of a chain, is filtered through a circular filtering hole and then enters a receiving hopper, and the filtered cooling liquid in the receiving hopper is discharged through the liquid outlet pipe and is pumped into the cooling liquid inlet of the machine tool through the circulating pump again to form circulation; the smear metal in the coolant liquid is filtered on the top side of the strip shaped plate at top, through rotating the cross axle, the cross axle drives the sprocket, the chain rotates, the chain drives the strip shaped plate counter-clockwise turning, thereby can change the strip shaped plate at top, make circular filtration pore constantly recycle, make circular filtration pore keep good filtering action, and when the strip shaped plate passes through both ends about the chain, adjacent strip shaped plate alternate segregation, two semicircle filtration pore separations of crossing of constituteing circular filtration pore are opened, the automatic discharge of smear metal of card in circular filtration pore of being convenient for.

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 embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a view in the direction A of FIG. 1; FIG. 3 is a view from the direction B of FIG. 1; FIG. 4 is an enlarged view of section I of FIG. 1; fig. 5 is a partial enlarged view of ii of fig. 1.

Reference numerals: 1. the device comprises a box body, 2, a transverse shaft, 3, a chain wheel, 4, a chain, 5, a strip-shaped plate, 6, a connecting rod, 7, a semicircular filtering hole, 8, a circular filtering hole, 9, a liquid inlet, 10, a material receiving hopper, 11, a supporting rod, 12, a liquid outlet pipe, 13, a slag discharge port, 20, an arc-shaped elastic sheet, 30, a vertical pipe, 31, a cylinder, 32, a torsion spring, 33, a spiral blade, 34, a rotating rod, 35, a deflector rod, 36, a lug, 37, a contact switch, 38, a driving motor, 39, a storage battery, 40, a round box, 41, a vertical cylinder, 42, a connecting pipe, 43, a conductive sliding ring, 50, a scraper blade, 51, a supporting shaft, 52, a baffle plate, 53, a spring rod, 60, a first gear, 61 and a second gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A coolant recycling device for a lathe is disclosed, as shown in figures 1-5, comprising a box body 1, two transverse shafts 2 are rotatably mounted in the box body 1, the two transverse shafts 2 are bilaterally symmetrically distributed, two ends of the outer periphery of each transverse shaft 2 are respectively rotatably connected with the inner periphery of a preformed hole on the box body 1 through sealed bearings, two chain wheels 3 are respectively fixedly mounted on the outer periphery of each transverse shaft 2, the chain wheels 3 are distributed front and back, the chain wheels 3 are respectively collinear with the central lines of the corresponding transverse shafts 2, the chain wheels 3 which are adjacent to the left and the right are in transmission connection through chains 4, the two chains 4 are distributed front and back, the outer peripheries of the front and the back two chains 4 are connected through a plurality of strip plates 5 which are uniformly distributed, two ends of one side of each strip plate 5, which is close to the chain 4, are respectively fixedly connected with the outer periphery of the corresponding chain 4 through connecting rods 6, the connecting rods 6 do not influence the meshing fit between the chains 4 and the chain wheels 3, the front end and the rear end of each strip-shaped plate 5 are respectively in sliding contact fit with the corresponding inner wall of the box body 1, the top of each chain 4 is in contact fit with the adjacent side of the strip-shaped plate 5 at the bottom, the adjacent sides of the two strip-shaped plates 5 are respectively and uniformly provided with a row of a plurality of semicircular filtering holes 7, the semicircular filtering holes 7 on the two adjacent strip-shaped plates 5 can form a circular filtering hole 8, when the strip-shaped plates 5 are positioned at the top and the bottom of the chain 4, the two corresponding semicircular filtering holes 7 form the circular filtering hole 8, when the strip-shaped plates 5 are positioned at the left end and the right end of the chain 4, the two adjacent strip-shaped plates 5 are separated, the semicircular filtering holes 7 cannot form the circular filtering hole 8, the top of the box body 1 is provided with a liquid inlet 9, the liquid inlet 9 is positioned in the middle of the strip-shaped plate 5 at the top of the chain 4, a material receiving hopper 10 is positioned between the strip-shaped plate 5 at the top of the chain 4 and the strip-shaped plate 5 at the bottom, the material receiving hopper 10 is positioned under the liquid inlet 9, connect hopper 10 and box 1 to pass through bracing piece 11 fixed connection, connect the one end of drain pipe 12 of the lower port fixed connection of hopper 10, the lateral wall of box 1 is passed to the other end of drain pipe 12, the periphery of the drain pipe 12 other end and the interior week fixed connection of preformed hole on the box 1, slag discharging opening 13 is seted up to one side of box 1, and the outside cooperation installation sealing door of slag discharging opening 13. The circular filter hole 8 is formed by the two semicircular filter holes 7 which can be separated, and when the circular filter holes 8 are cleaned, the semicircular filter holes 7 are separated relatively, so that chips clamped in the circular filter holes 8 can fall off automatically. When the cooling liquid circulating device is used, a cooling liquid outlet of a machine tool is connected with a liquid inlet 9 through a pipeline, the other end of a liquid outlet pipe 12 is connected with a cooling liquid inlet of the machine tool through a circulating pump through a pipeline, the cooling liquid used by the machine tool can be discharged into a box body 1 through the liquid inlet 9, the cooling liquid falls onto a strip-shaped plate 5 at the top of a chain 4, is filtered through a circular filtering hole 8 and then enters a receiving hopper 10, the filtered cooling liquid in the receiving hopper 10 is discharged through the liquid outlet pipe 12 and is pumped into the cooling liquid inlet of the machine tool again through the circulating pump to form circulation; the smear metal in the coolant liquid is filtered the top side at the bar panel 5 at top, through rotating cross axle 2, cross axle 2 drives sprocket 3, chain 4 rotates, chain 4 drives 5 anticlockwise rotations of bar panel, thereby can change the bar panel 5 at top, make the continuous cyclic use of circular filtration hole 8, make circular filtration hole 8 keep good filtering action, and when bar panel 5 both ends of controlling through chain 4, adjacent bar panel 5 alternate segregation, two semicircles of constituteing circular filtration hole 8 filter the hole 7 separation and open, the smear metal automatic discharge of card in circular filtration hole 8 of being convenient for.

Specifically, as shown in fig. 1, 3, 4, 5, this embodiment be equipped with arc elastic piece 20 in the circular filtration pore 8, the both ends of arc elastic piece 20 respectively with the semicircle filtration pore 7 fixed connection that corresponds, constitute two semicircles of circular filtration pore 8 and filter the one end fixed connection that pore 7 and arc elastic piece 20 correspond, the arc of protrusion of arc elastic piece 20 is inboard towards. Strip shaped plate 5 is located when the top of chain 4 and bottom, circular filtration pore 8 is constituteed to two semicircle filtration pores 7, arc flexure strip 20 is extruded this moment, arc flexure strip 20's middle part is crooked to circular filtration pore 8's inside, arc flexure strip 20 acts as the pin this moment, make circular filtration pore 8's filtration diameter reduce, can avoid the smear metal at chain 4 top to pass through circular filtration pore 8 and get into in connecing hopper 10, when strip shaped plate 5 removes to the both ends of chain 4, constitute two semicircle filtration pore 7 alternate segregation of circular filtration pore 8, arc flexure strip 20 is stretched, arc flexure strip 20's middle part outwards removes, arc flexure strip 20 can be ejecting with the smear metal of card in semicircle filtration pore 7, filter pore 7 to the semicircle and clear up.

Specifically, as shown in fig. 1 and 5, in the present embodiment, a vertical tube 30 is fixedly installed in the liquid inlet 9, a coaxial cylinder 31 is rotatably installed in the vertical tube 30 through a one-way bearing, an outer periphery of the cylinder 31 is fixedly connected to an inner periphery of a helical blade 33, an outer periphery of the helical blade 33 is in sliding contact with the inner periphery of the vertical tube 30, a rotating rod 34 is rotatably installed in the cylinder 31, a middle portion of an outer periphery of the rotating rod 34 is rotatably connected to a lower end of an inner periphery of the cylinder 31 through a sealed bearing, the cylinder 31 is connected to the rotating rod 34 through a torsion spring 32, the torsion spring 32 is sleeved on the outer periphery of the rotating rod 34, a lower end of the rotating rod 34 is fixedly connected to one end of a transverse shift lever 35, a bottom side of the shift lever 35 is in sliding contact with a top side of a strip-shaped plate 5 on a top of a chain 4, a protrusion 36 is fixedly installed at an upper end of the rotating rod 34, a contact switch 37 is fixedly installed in the cylinder 31, the protrusion 36 can be in contact with the contact switch 37, a driving motor 38 and a storage battery 39 are fixedly installed on one side of a box 1, a rotating shaft of the driving motor 38 is fixedly connected to one end of one transverse shaft 2, and the contact switch 37 are connected in series through a circuit. The cooling liquid poured into the liquid inlet 9 enters the vertical pipe 30, when the cooling liquid flows through the spiral blade 33, the spiral blade 33 is enabled to rotate, the spiral blade 33 drives the rotating rod 34 and the shifting rod 35 to rotate through the torsion spring 32, when chips in the cooling liquid are accumulated on the strip-shaped plate 5 at the top, the shifting rod 35 is blocked along with the rotation of the cylinder 31, the rotating rod 34 rotates relative to the cylinder 31, the torsion spring 32 is twisted to store energy, the lug 36 is in contact fit with the contact switch 37, the driving motor 38 is electrically communicated with the storage battery 39, the rotating shaft of the driving motor 38 drives the transverse shaft 2 to rotate, so that the strip-shaped plate 5 rotates anticlockwise, the strip-shaped plate 5 below the vertical pipe 30 drives the chips to move away, subsequent filtering is facilitated, after the chips are moved away from the lower side of the vertical pipe 30, the rotating rod 34 is reset under the action of the torsion spring 32, the lug 36 is separated from the contact switch 37, the driving motor 38 is powered off and stops rotating, so that the cooling liquid flows through the vertical pipe 30, and the chips are accumulated below the vertical pipe 30, and the strip-shaped plate 5 rotates automatically and circularly.

Further, as shown in fig. 5, the cylinder 31 of this embodiment includes a round box 40 and a vertical tube 41, the round box 40 is fixedly connected to the vertical tube 30 through a connection tube 42, a wire-passing hole communicated with the connection tube 42 is formed in the round box 40 and the vertical tube 30, a wire is conveniently passed through the wire-passing hole, the bottom side of the round box 40 is open, the lower end of the round box 40 is rotatably connected to the upper end of the vertical tube 41 through a one-way bearing, the one-way bearing is a sealed one-way bearing, the helical blade 33 is fixedly installed on the periphery of the vertical tube 41, the vertical tube 41 is connected to the rotating rod 34 through the torsion spring 32, the top of the round box 40 is fixedly connected to one end of a conductive slip ring 43, the other end of the conductive slip ring 43 is fixedly connected to the vertical tube 41, and the contact switch 37 is electrically connected to the driving motor 38 and the storage battery 39 through the conductive slip ring 43. The contact switch 37 is electrically connected to the drive motor 38 and the battery 39 via the conductive slip ring 43, and the contact switch 37 can be rotated while being electrically connected to the drive motor 38 and the battery 39.

Furthermore, as shown in fig. 1 and 2, in the embodiment, a scraper 50 is fixedly installed in the box 1, front and rear ends of the scraper 50 are fixedly connected to inner walls corresponding to the box 1, the scraper 50 is located on the right side above the receiving hopper 10, one side of the strip-shaped plate 5 facing the scraper 50 can be in sliding contact with and fit with bottom sides of the scraper 50, a supporting shaft 51 is rotatably installed in the box 1, a front end of the supporting shaft 51 is rotatably connected to an inner wall of the front side of the box 1 through a bearing, a rear end of an outer periphery of the supporting shaft 51 is rotatably connected to an inner periphery of a reserved hole in the box 1 through a sealed bearing, a plurality of baffles 52 are uniformly arranged on the outer periphery of the supporting shaft 51, one side of the baffle 52 close to the supporting shaft 51 is connected to the supporting shaft 51 through a plurality of spring rods 53, the spring rods 53 are perpendicular to the supporting shaft 51, one side of the baffle 52 away from the supporting shaft 51 can be in close contact with and fit with a top side of the strip-shaped plate 5 on top of the chain 4, one end of the supporting shaft 51 extends out of the box 1, front and rear ends of the baffle 52 are in sliding contact with and fit with corresponding inner walls of the box 1, the baffle 52 and the scraper 50 can form a restraining frame, so that a cooling liquid inlet 9 enters the receiving hopper 1 and a circular shape of the round filtering liquid inlet 10. Screwing the outer end of the support shaft 51 to enable the support shaft 51 to drive the spring rod 53 and the baffle plates 52 to rotate, and enabling at least one baffle plate 52 to be in close contact fit with the strip-shaped plate 5, so that the composition of the restraint frame is maintained, and when the baffle plates 52 rotate, cuttings at the top of the strip-shaped plate 5 can be stirred; when the strip 5 rotates anticlockwise with the chain 4, the scraper 50 can scrape off the cuttings on the top of the strip 5.

Further, as shown in fig. 2, the outer end of the supporting shaft 51 is fixedly installed with a first gear 60, one end of one of the transverse shafts 2 is fixedly installed with a second gear 61, and the first gear 60 is engaged with the second gear 61. The rotation of the horizontal shaft 2 can drive the rotation of the supporting shaft 51 through the meshing engagement of the second gear 61 and the first gear 60.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a coolant liquid cyclic utilization device for lathe which characterized in that: the novel chain wheel type slag removing device comprises a box body (1), two transverse shafts (2) are rotatably mounted in the box body (1), two chain wheels (3) are fixedly mounted on the peripheries of the transverse shafts (2) respectively, the left chain wheel (3) and the right chain wheel (3) which are adjacent are in transmission connection through chains (4), the peripheries of the front chain wheel (4) and the rear chain wheel (4) are connected through a plurality of uniformly distributed strip-shaped plates (5), the tops of the chains (4) are in contact fit with the adjacent sides of the strip-shaped plates (5) at the bottom, a row of a plurality of semicircular filtering holes (7) are respectively and uniformly formed in the adjacent sides of the two strip-shaped plates (5), the semicircular filtering holes (7) in the two adjacent strip-shaped plates (5) can form a circular filtering hole (8), a liquid inlet (9) is formed in the top of the box body (1), a material receiving hopper (10) is arranged between the chains (4), the material receiving hopper (10) is fixedly connected with the box body (1) through a supporting rod (11), a lower port of the material receiving hopper (10) is fixedly connected with one end of a liquid outlet pipe (12), the other end of the liquid outlet pipe (12) passes through the side wall of the box body (1), and a slag removing port (13) is formed in one side of the box body (1); a vertical pipe (30) is fixedly installed in the liquid inlet (9), a coaxial cylinder (31) is installed in the vertical pipe (30) through a one-way bearing in a rotating mode, the outer periphery of the cylinder (31) is fixedly connected with the inner periphery of a helical blade (33), the outer periphery of the helical blade (33) is in sliding contact fit with the inner periphery of the vertical pipe (30), a rotating rod (34) is installed in the cylinder (31) in a rotating mode, the cylinder (31) is connected with the rotating rod (34) through a torsion spring (32), the lower end of the rotating rod (34) is fixedly connected with one end of a transverse shifting rod (35), a convex block (36) is fixedly installed at the upper end of the rotating rod (34), a contact switch (37) is fixedly installed in the cylinder (31), the convex block (36) can be in contact fit with the contact switch (37), a driving motor (38) and a storage battery (39) are fixedly installed on one side of the box body (1), the rotating shaft of the driving motor (38) is fixedly connected with one end of one transverse shaft (2), and the driving motor (38), the storage battery (39) and the contact switch (37) are connected in series through a circuit; the cylinder (31) comprises a round box (40) and a vertical cylinder (41), the round box (40) is fixedly connected with the vertical cylinder (30) through a connecting pipe (42), the lower end of the round box (40) is rotatably connected with the upper end of the vertical cylinder (41) through a one-way bearing, the top of the round box (40) is fixedly connected with one end of a conductive sliding ring (43), the other end of the conductive sliding ring (43) is fixedly connected with the vertical cylinder (41), and a contact switch (37) is electrically connected with a driving motor (38) and a storage battery (39) through the conductive sliding ring (43).

2. The coolant circulation device for a lathe according to claim 1, wherein: arc-shaped elastic pieces (20) are arranged in the circular filtering holes (8), two ends of each arc-shaped elastic piece (20) are fixedly connected with the corresponding semicircular filtering holes (7), and the convex arcs of the arc-shaped elastic pieces (20) face towards the inner side.

3. The coolant circulation device for a lathe according to claim 1, wherein: the utility model discloses a box (1) internal fixation installs scraper blade (50), scraper blade (50) are located the right side that connects hopper (10) top, one side of bar shaped plate (5) towards scraper blade (50) can be with the bottom side sliding contact cooperation of scraper blade (50), box (1) internal rotation installation back shaft (51), the periphery of back shaft (51) evenly is equipped with several baffle (52), one side that baffle (52) are close to back shaft (51) is connected through several spring beam (53) with back shaft (51), one side that baffle (52) deviate from back shaft (51) can be with the top side close contact cooperation of chain (4) top bar shaped plate (5), box (1) is stretched out to the one end of back shaft (51), the inner wall sliding contact cooperation that both ends and box (1) correspond around baffle (52), scraper blade (50) can constitute the restraint frame with the preceding back wall of box (1), thereby make inlet (9) get into the coolant liquid of box (1) in the restraint frame, and get into through circular filtration pore (8) that corresponds in the restraint frame and connect hopper (10).

4. The coolant circulation device for a lathe according to claim 3, wherein: the outer end of the supporting shaft (51) is fixedly provided with a first gear (60), one end of one transverse shaft (2) is fixedly provided with a second gear (61), and the first gear (60) is meshed with the second gear (61).