Chip flushing device for machining center

Abstract

The application relates to the technical field of machining, and discloses a machining center chip flushing device, which comprises a driven flushing mechanism and an elastic pressure supply mechanism, and the structure comprises a hollow shell No. 1 which is in a fixed position and has a hollow structure, an extension rod which generates a directional guiding function for the driven flushing mechanism, and a spiral spring which generates an elastic damping effect for the extension rod. The machining center chip flushing device drives the cutting fluid by using rotating turbine blades, so that the cutting and flushing of a workpiece are realized; the rotating speed of the turbine blades and the rotating speed of a triangular chuck of a machine tool always correspond, so that the flow of the cutting fluid is adaptively controlled according to the rotating speed of the workpiece in the machining process, and the adaptive control capability of the equipment in the cutting fluid flow aspect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining, in particular to a chip flushing device of a machining center. BACKGROUND

[0002] Machining refers to a process of changing the shape or size of a workpiece or its performance through a mechanical device. According to the difference in processing method, it can be divided into cutting and pressure processing. A flushing device is needed during the cutting process of a machining center.

[0003] For example, the Chinese patent with publication number "CN112387673A" discloses a "chip flushing device of a machining center", which mainly includes a rack, a flushing assembly movably mounted on the surface of the top of the rack, a filter assembly fixedly installed inside the rack, a base fixedly installed at the bottom of the rack, a water tank fixedly installed inside the base, a water pump fixedly installed on one side of the water tank, a water delivery pipe fixedly installed at the output end of the water pump, and a hose fixedly installed at the top end of the water delivery pipe. The chip flushing device of the machining center is provided with a flushing assembly movably mounted on the surface of the top of the rack. The surface of the limiting piece is fixedly provided with a limiting bolt. The nozzle is fixed in the inside of the sliding groove fixedly arranged on the surface of the cross beam by tightening. The limiting bolt fixedly arranged on the surface of the nozzle is loosened. The nozzle moves in the sliding groove fixedly arranged on the surface of the cross beam. This facilitates the adjustment of the flushing head by the staff, so that the flushing device can flush different sizes of machines.

[0004] However, in the actual machining process, when the flushing head sprays cutting fluid outward, the flow rate of the cutting fluid is controlled by the water pump used to drive the cutting fluid, and the speed of the water pump is controlled by the controller. There is no direct correlation between the speed of the workpiece and the controller and the machine tool, which may result in insufficient flow rate of the cutting fluid when the workpiece rotates too fast, and may result in waste of cutting fluid when the workpiece rotates too slowly. Therefore, the cutting fluid flow rate has poor self-adaptive control ability. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a chip flushing device of a machining center. The cutting fluid is driven by the rotating turbine blades, so as to realize the cutting and flushing of the workpiece. The speed of the turbine blades is always corresponding to the speed of the triangular chuck of the machine tool, so as to self-adaptively control the flow rate of the cutting fluid according to the speed of the workpiece in the machining process, thereby improving the self-adaptive control ability of the equipment in terms of cutting fluid flow rate, and solving the above technical problems.

[0006] In order to achieve the above object, the present application provides the following technical scheme: The chip flushing device of the machining center comprises a driven flushing mechanism, which comprises a driven roller capable of being in contact with the outer circumferential surface of the machine tool triangular chuck and rotating with the triangular chuck, turbine blades capable of flowing cutting fluid during rotation, a synchronous belt for synchronously rotating the turbine blades with the driven roller, and a curved liquid discharge pipe capable of discharging cutting fluid to the cutting position; and an elastic pressure supply mechanism, which comprises a hollow shell in a fixed position and having a hollow structure, a telescopic rod for generating directional guiding function for the driven flushing mechanism, and a spiral spring for generating elastic damping effect on the telescopic rod.

[0007] Preferably, the driven flushing mechanism further comprises an L-shaped base plate provided with two symmetrical mounting bases, a rotatable driven roller mounted between the two mounting bases through a bearing, a driving pulley sleeved on one rotating end of the driven roller, a turbine mounting cavity provided in the inside of the L-shaped base plate, a liquid inlet channel provided in the inside of the L-shaped base plate for entering liquid into the turbine mounting cavity, a one-piece first butt plate provided on the top of the L-shaped base plate, a curved liquid discharge pipe provided on one side of the L-shaped base plate for discharging liquid in the turbine mounting cavity, a rotatable central shaft mounted in the inside of the L-shaped base plate, turbine blades mounted on the shaft body in the inside of the turbine mounting cavity, a driven pulley sleeved on one end of the central shaft close to the driving pulley, and a synchronous belt connected between the driven pulley and the driving pulley.

[0008] Preferably, the curved liquid discharge pipe is a pipeline structure made of a metal material with bending deformation function.

[0009] Preferably, the outer circumferential surface of the driven roller is provided with an anti-skid pattern structure.

[0010] Preferably, the elastic pressure supply mechanism further comprises a first inner movable cavity provided in the inside of the hollow shell, a fixed sleeve fixedly mounted on the outer circumferential surface of the hollow shell, a one-piece second butt plate provided on one side of the fixed sleeve, a rod body perforation provided at the bottom end of the hollow shell and communicating with the outside space and the bottom end of the first inner movable cavity, a built-in movable plate provided in the inside of the first inner movable cavity and capable of moving axially along the first inner movable cavity, a spiral spring provided on the top of the built-in movable plate in a compressed state, a telescopic rod provided at the bottom end of the built-in movable plate and penetrating the rod body perforation, a third butt plate provided at the bottom end of the telescopic rod in an integral structure, and the third butt plate is fixedly connected with the first butt plate.

[0011] Preferably, the structure and shape of the cross section of the rod body perforation are consistent with the structure and shape of the cross section of the telescopic rod, both are polygonal structures, and the structure size of the cross section of the rod body perforation matches the structure size of the cross section of the telescopic rod.

[0012] Preferably, the adjustable mounting mechanism further comprises a hollow shell No.2 capable of being fixedly mounted on the surface of the machine tool and having a hollow structure inside, an inner movable block capable of being longitudinally moved and placed in the hollow shell No.2, a sliding block capable of moving the second butt plate along with the longitudinal movement of the inner movable block, and a longitudinal threaded rod capable of causing the longitudinal movement of the inner movable block when rotating.

[0013] Preferably, the adjustable mounting mechanism further comprises a mounting base plate integrally arranged at the bottom of the hollow shell No.2, the bottom surface of the mounting base plate is embedded with a permanent magnet, the inside of the hollow shell No.2 is provided with a second inner movable cavity, one side of the hollow shell No.2 is provided with a longitudinal sliding groove communicating with the outside space and the side surface of the second inner movable cavity, the inside of the second inner movable cavity is placed with an inner movable block capable of moving along the axis of the second inner movable cavity, the axis of the second inner movable cavity is provided with a longitudinal threaded rod capable of rotating through a bearing, the center of the inner movable block is provided with an inner threaded hole mounted on the rod body of the longitudinal threaded rod through a threaded structure, the top end of the longitudinal threaded rod is sleeved with a knob, one side of the inner movable block is provided with a sliding block capable of sliding along the longitudinal sliding groove, one end of the sliding block is provided with a fourth butt plate in an integral structure, and the fourth butt plate is fixedly connected with the second butt plate.

[0014] Preferably, the threaded structure comprises an inner threaded structure arranged on the circumferential inner wall of the inner threaded hole and an outer threaded structure arranged on the rod body of the longitudinal threaded rod, and the inner threaded structure and the outer threaded structure are adapted.

[0015] Preferably, the width of the sliding block is adapted to the width of the longitudinal sliding groove.

[0016] Compared with the prior art, the machining center chip flushing device provided by the present application has the following beneficial effects:

[0017] The cutting fluid is driven by the rotating turbine blades, so as to realize the cutting and flushing of the workpiece, and the rotating speed of the turbine blades and the rotating speed of the triangular chuck of the machine tool are always corresponding, so as to adaptively control the flow of the cutting fluid according to the rotating speed of the workpiece in the machining process, thereby improving the adaptive control ability of the equipment in the flow of the cutting fluid. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the present application;

[0019] Figure 2 It is a perspective sectional view of the present application;

[0020] Figure 3 It is a perspective view of the driven flushing mechanism in the present application;

[0021] Figure 4Fig. 2 is a perspective view of the driven flushing mechanism of the present application;

[0022] Figure 5 Fig. 4 is a perspective view of the elastic pressure supply mechanism of the present application;

[0023] Figure 6 Fig. 5 is a perspective view of the elastic pressure supply mechanism of the present application;

[0024] Figure 7 Fig. 6 is a perspective view of the adjustable mounting mechanism of the present application;

[0025] Figure 8 Fig. 7 is a perspective view of the adjustable mounting mechanism of the present application.

[0026] 1, driven flushing mechanism; 11, L-shaped base plate; 12, mounting base; 13, driven roller; 14, driving pulley; 15, turbine mounting cavity; 16, central rotating shaft; 17, driven pulley; 18, synchronous belt; 19, liquid inlet channel; 110, turbine blade; 111, No. 1 butt joint plate; 112, liquid outlet curved pipe; 2, elastic pressure supply mechanism; 21, No. 1 hollow shell; 22, fixed sleeve; 23, No. 2 butt joint plate; 24, No. 1 inner movable cavity; 25, spiral spring; 26, built-in movable plate; 27, rod body perforation; 28, telescopic rod; 29, No. 3 butt joint plate; 3, adjustable mounting mechanism; 31, No. 2 hollow shell; 32, mounting base plate; 33, No. 2 inner movable cavity; 34, longitudinal sliding slot; 36, longitudinal threaded rod; 37, permanent magnet; 38, knob; 39, inner movable block; 310, inner threaded hole; 311, sliding block; 312, No. 4 butt joint plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0028] Please refer to Figure 1 and Figure 2 , the cutting chip flushing device of the machining center, the permanent magnet 37 is adsorbed at the iron shell of the machine tool, then the position of the driven roller 13 is adjusted, so that the outer circumferential surface of the driven roller 13 is in contact with the outer circumferential surface of the triangular chuck in the machine tool. It should be noted that the axis of the driven roller 13 needs to be parallel to the axis of the triangular chuck, then the liquid inlet channel 19 is connected to the liquid outlet of a storage tank storing cutting fluid through a pipeline, finally, the shape of the liquid outlet curved pipe 112 is manually adjusted, so that the liquid outlet port of the liquid outlet curved pipe 112 points to the cutting position of the workpiece.

[0029] To achieve the adaptive cutting fluid flushing function, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , need to set the driven type flushing mechanism 1, the structure includes can be in contact with the outer circumferential surface of the machine tool chuck and rotate with the chuck driven roller 13, can make the cutting fluid flow in the process of rotation turbine fan blade 110, make turbine fan blade 110 synchronous rotation with driven roller 13 of synchronous belt 18 and can make the cutting fluid to the cutting site discharge liquid curved pipe 112, when the machine tool motor starts, the chuck will drive the driven roller 13 fast rotation, the rotation of the driven roller 13 will cause the turbine fan blade 110 rotation, thereby cutting fluid from the storage tank and through the liquid curved pipe 112 injection to the workpiece in the machining cutting, because the driven roller 13 rotates with the chuck, the speed of the chuck rotation and the driven roller 13 always keep corresponding relationship, and the speed of the chuck rotation and the speed of the workpiece in the process of machining is consistent, the speed of turbine fan blade 110 rotation and the flow of cutting fluid is consistent, therefore, the flow of cutting fluid will and the speed of the workpiece in the process of machining keep corresponding relationship, thereby realizing the adaptive cutting fluid flushing function.

[0030] For the specific structure of the driven type flushing mechanism 1, please refer to Figure 3 and Figure 4 , also includes L shaped base plate 11, the L shaped base plate 11 is provided with two symmetrical mounting base 12, two mounting base 12 between the bearing is provided with a rotating driven roller 13, the driven roller 13 one end of the rotating sleeve drive pulley 14, L shaped base plate 11 inside is provided with turbine installation cavity 15, the L shaped base plate 11 inside is provided with liquid inlet channel 19 for entering the liquid into the turbine installation cavity 15, the top of the L shaped base plate 11 is provided with a one body structure of the first docking plate 111, the side of the L shaped base plate 11 is provided with a liquid curved pipe 112 for discharging the liquid in the turbine installation cavity 15, the L shaped base plate 11 is provided with a rotating center shaft 16, the center shaft 16 is provided with a turbine fan blade 110 in the shaft body inside the turbine installation cavity 15, the center shaft 16 is provided with a driven pulley 17 near one end of the drive pulley 14, the driven pulley 17 and the drive pulley 14 between the synchronous belt 18 linkage, the liquid curved pipe 112 is a pipeline structure made of metal material with bending deformation function, the outer circumferential surface of the driven roller 13 is provided with anti slip structure.

[0031] In order to make the driven roller 13 on the outer circumferential surface of the chuck elastic contact effect, please refer to Figure 1 , Figure 2 , Figure 5And Figure 6 , need to set the elastic pressure supply mechanism 2, which includes a fixed position and the inside is hollow structure of a hollow shell 21, the extension rod 28 for the driven type flushing mechanism 1 generated directional guide function and the spiral spring 25 for the extension rod 28 generated elastic damping effect, in the adjustment process, so that the outer circumference of the driven roller 13 in the outer circumference of the chuck, and make the spiral spring 25 in the semi compression state, in the process of rotation, the spiral spring 25 can provide elastic force, so that the driven roller 13 on the outer circumference of the chuck generated elastic effect of resistance, to ensure the effective contact pressure between the driven roller 13 and the chuck.

[0032] For the specific structure of the elastic pressure supply mechanism 2, please refer to Figure 5 And Figure 6 , also includes the setting in the inside of a hollow shell 21 of a one inner cavity 24, the outer circumference of the hollow shell 21 is fixedly installed with fixed sleeve 22, the fixed sleeve 22 on one side is provided with the integral structure of the second butt plate 23, the bottom end of the hollow shell 21 is provided with the rod body through hole 27 which is communicated with the outside space and the bottom end of the one inner cavity 24, the inside of the one inner cavity 24 of the hollow shell 21 is placed with the built-in movable plate 26 which can move along the one inner cavity 24, the top of the built-in movable plate 26 is placed with the spiral spring 25 in the compression state, the bottom end of the built-in movable plate 26 is installed with the extension rod 28 which is through the rod body through hole 27, the bottom end of the extension rod 28 is provided with the third butt plate 29 which is integral with it, the third butt plate 29 is fixedly connected with the first butt plate 111, the cross section structure shape of the rod body through hole 27 is consistent with the cross section structure shape of the extension rod 28, both are polygonal structure, and the cross section structure size of the rod body through hole 27 is matched with the cross section structure size of the extension rod 28.

[0033] In order to realize the position adjustable type installation function, please refer to Figure 1 , Figure 2 , Figure 7 And Figure 8, need to set adjustable installation mechanism 3, its structure includes can be fixedly installed in the machine tool surface and the inside hollow structure of the second hollow shell 31, placed in the second hollow shell 31 and can be longitudinally moving inner movable block 39, with the longitudinal movement of inner movable block 39 and can drive the second butt plate 23 moves the slider 311 and in the rotation can make the longitudinal movement of inner movable block 39 longitudinal screw rod 36, the permanent magnet 37 is adsorbed in the iron shell of machine tool, and then adjust the position of the driven roller 13, so that the outer circumferential surface of the driven roller 13 is in contact with the outer circumferential surface of the triangular chuck in the machine tool, and then orient the knob 38, at this time, the longitudinal screw rod 36 will be rotated, under the influence of the threaded structure, the inner movable block 39 will drive the slider 311 to move longitudinally, thereby driving the entire first hollow shell 21 to move, finally change the position of the driven roller 13, until the driven roller 13 is in contact with the outer circumferential surface of the triangular chuck with appropriate pressure, so as to realize the adjustable installation function.

[0034] For the specific structure of the adjustable installation mechanism 3, please refer to Figure 7 And Figure 8 Also includes an integral installation base plate 32 provided at the bottom of the second hollow shell 31, the bottom surface of the installation base plate 32 is embedded with a permanent magnet 37, the inside of the second hollow shell 31 is provided with a second inner movable cavity 33, one side of the second hollow shell 31 is provided with a longitudinal sliding groove 34 communicating with the outside space and the side of the second inner movable cavity 33, the second hollow shell 31 is placed in the second inner movable cavity 33 and is provided with an inner movable block 39 capable of moving axially along the second inner movable cavity 33, the longitudinal screw rod 36 capable of rotating is installed at the axial center of the second inner movable cavity 33 through a bearing, the center of the inner movable block 39 is provided with an inner threaded hole 310 installed on the rod body of the longitudinal screw rod 36 through a threaded structure, the top end of the longitudinal screw rod 36 is sleeved with a knob 38, one side of the inner movable block 39 is provided with a slider 311 capable of sliding along the longitudinal sliding groove 34, one end of the slider 311 is provided with a fourth butt plate 312 in an integral structure, the fourth butt plate 312 is fixedly connected with the second butt plate 23, the threaded structure includes an inner threaded structure provided on the circumferential inner wall of the inner threaded hole 310 and an outer threaded structure provided on the rod body of the longitudinal screw rod 36, and the inner threaded structure and the outer threaded structure are adapted, the width of the slider 311 is adapted to the width of the longitudinal sliding groove 34.

[0035] In use, the permanent magnet 37 is adsorbed at the iron shell of the machine tool, then the position of the driven roller 13 is adjusted so that the outer circumferential surface of the driven roller 13 abuts against the outer circumferential surface of the triangular chuck in the machine tool, then the rotating knob 38 is oriented to rotate, at this time, the longitudinal screw rod 36 is rotated, under the influence of the threaded structure, the inner movable block 39 drives the sliding block 311 to move longitudinally, thereby driving the entire No. 1 hollow shell 21 to move, finally the position of the driven roller 13 is changed until the driven roller 13 abuts against the outer circumferential surface of the triangular chuck with appropriate pressure, it should be noted that the axis of the driven roller 13 needs to be parallel to the axis of the triangular chuck, then the liquid inlet channel 19 is connected to the liquid outlet of a storage tank storing cutting fluid through a pipeline, finally, the shape of the liquid discharge curved pipe 112 is manually adjusted so that the liquid discharge port of the liquid discharge curved pipe 112 points to the cutting position of the workpiece, when the machine tool motor starts, the triangular chuck drives the driven roller 13 to rotate rapidly, the rotation of the driven roller 13 drives the turbine vane 110 to rotate, thereby pumping cutting fluid from the storage tank and spraying it to the machining cutting position of the workpiece through the liquid discharge curved pipe 112. Since the driven roller 13 rotates with the triangular chuck, the speed of the triangular chuck is always in correspondence with the speed of the driven roller 13, and the speed of the triangular chuck is consistent with the speed of the workpiece in the machining process, and the speed of the turbine vane 110 is consistent with the flow of the cutting fluid, therefore, the flow of the cutting fluid will be in correspondence with the speed of the workpiece in the machining process, thereby realizing the self-adaptive cutting fluid flushing function.

[0036] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A chip flushing device for a machining center, characterized in that: The utility model relates to a kind of from dynamic flushing mechanism (1), including the outer circumferential surface of machine tool triangular chuck and the rotation of triangular chuck can be resisted in from dynamic roller (13), the flow of cutting fluid can be made in the rotation process turbine fan blade (110), make turbine fan blade (110) synchronous rotation with from dynamic roller (13) synchronous belt (18) and the discharge of cutting fluid to cutting site discharge curved pipe (112);And elastic pressure supply mechanism (2), its structure includes the hollow shell (21) of fixed orientation and inside hollow structure, telescopic rod (28) for from dynamic flushing mechanism (1) generates directional guide function and the helical spring (25) for telescopic rod (28) generates elastic damping effect; The from dynamic flushing mechanism (1) further includes L-shaped base plate (11), the L-shaped base plate (11) is provided with two symmetrical mounting pedestals (12), the rotatable from dynamic roller (13) is mounted between two mounting pedestals (12) by bearing, the rotatable from dynamic roller (13) is provided with driving belt pulley (14) in one rotation end, the inside of L-shaped base plate (11) is provided with turbine mounting cavity (15), the inside of L-shaped base plate (11) is provided with liquid inlet channel (19) for entering liquid to turbine mounting cavity (15), the top of L-shaped base plate (11) is provided with one-to-one board (111) of integral structure, the side of L-shaped base plate (11) is provided with curved pipe (112) for discharging liquid in turbine mounting cavity (15), rotatable central shaft (16) is installed in L-shaped base plate (11), turbine fan blade (110) is installed in the shaft body of central shaft (16) inside turbine mounting cavity (15), from dynamic belt pulley (17) is sleeved on the end of central shaft (16) close to driving belt pulley (14), from dynamic belt pulley (17) and driving belt pulley (14) are linked by synchronous belt (18). The curved pipe (112) is a pipe-shaped structure made of metal material with bending deformation function. The outer circumferential surface of the from dynamic roller (13) is provided with anti-skid pattern structure.

2. The chip flushing device for a machining center according to claim 1, characterized in that: ​ 3. The chip flushing device for a machining center according to claim 2, characterized in that: ​ 4. The chip flushing device for a machining center according to claim 3, characterized in that: The elastic pressure supply mechanism (2) further comprises a first inner movable cavity (24) arranged in a first hollow shell (21), a fixed sleeve (22) is fixedly installed on the outer circumferential surface of the first hollow shell (21), a second butt joint plate (23) of integral structure is arranged on one side of the fixed sleeve (22), a rod body perforation (27) communicating the outside space and the bottom end of the first inner movable cavity (24) is arranged at the bottom end of the first hollow shell (21), a built-in movable plate (26) capable of moving axially along the first inner movable cavity (24) is arranged in the first inner movable cavity (24) of the first hollow shell (21), a spiral spring (25) in a compressed state is arranged on the top of the built-in movable plate (26), a telescopic rod (28) penetrating through the rod body perforation (27) is installed at the bottom end of the built-in movable plate (26), a third butt joint plate (29) of integral structure is arranged at the bottom end of the telescopic rod (28), and the third butt joint plate (29) is fixedly connected with the first butt joint plate (111).

5. The chip flushing device for a machining center according to claim 4, characterized in that: The structure and shape of the cross section of the rod body perforation (27) are consistent with those of the telescopic rod (28), and both are polygonal structures, and the structure size of the cross section of the rod body perforation (27) matches that of the telescopic rod (28).

6. The chip flushing device for a machining center according to claim 5, characterized in that: Further comprising an adjustable mounting mechanism (3), which comprises a second hollow shell (31) capable of being fixedly installed on the surface of a machine tool and having a hollow structure, an inner movable block (39) arranged in the second hollow shell (31) and capable of moving longitudinally, a sliding block (311) moving longitudinally with the inner movable block (39) and capable of driving the second butt joint plate (23) to move, and a longitudinal screw rod (36) capable of causing the inner movable block (39) to move longitudinally when rotating.

7. The chip flushing device for a machining center according to claim 6, characterized in that: The adjustable mounting mechanism (3) further comprises an installation base plate (32) integrally arranged at the bottom of the second hollow shell (31), a permanent magnet (37) is embedded in the bottom surface of the installation base plate (32), a second inner movable cavity (33) is arranged in the second hollow shell (31), a longitudinal sliding groove (34) communicating the outside space and the side surface of the second inner movable cavity (33) is arranged on one side of the second hollow shell (31), an inner movable block (39) capable of moving axially along the second inner movable cavity (33) is arranged in the second inner movable cavity (33) of the second hollow shell (31), a longitudinal screw rod (36) capable of rotating is installed at the axis of the second inner movable cavity (33) through a bearing, an internal thread hole (310) installed on the rod body of the longitudinal screw rod (36) through a threaded structure is arranged at the center of the inner movable block (39), a knob (38) is sleeved on the top end of the longitudinal screw rod (36), a sliding block (311) capable of sliding along the longitudinal sliding groove (34) is arranged on one side of the inner movable block (39), a fourth butt joint plate (312) of integral structure is arranged at one end of the sliding block (311), and the fourth butt joint plate (312) is fixedly connected with the second butt joint plate (23).

8. The chip flushing device for a machining center according to claim 7, characterized in that: The threaded structure comprises an inner threaded structure arranged on the circumferential inner wall of the inner threaded hole (310) and an outer threaded structure arranged on the rod body of the longitudinal threaded rod (36), and the inner threaded structure and the outer threaded structure are matched.

9. The chip flushing device for a machining center according to claim 8, characterized in that: The width of the sliding block (311) is matched with the width of the longitudinal sliding groove (34).

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