Cooling and chip removal device and method for machining center

Abstract

The present application discloses a cooling and chip removal device and method for a machining center, including a spray cooling mechanism for spraying coolant on a workpiece on a workbench and a mounting seat mounted on both sides of the workbench, wherein the mounting seat is slidably connected to two oppositely arranged sliding racks, and both of the two sliding racks are provided with shielding films, and the mounting seat is provided with a driving member for driving the two sliding racks to move closer to or away from each other. When processing a workpiece, the two sliding racks are driven by the driving member to move closer to each other, and the shielding films of the two sliding racks follow the movement and jointly surround the outer side of the bottom of the workpiece, and the two shielding films jointly constitute a shielding barrier for covering the workbench chuck. The present application has the effect of improving the problem of debris adhering to the worktable surface.

Description

Technical Field

[0001] The present application relates to the field of workpiece machining, and in particular to a cooling and chip removal device and method for a machining center. Background Art

[0002] A machining center is a type of machine tool. It is an important equipment used for cutting, forging, casting, welding and other processing. It is widely used in the machinery manufacturing industry. There are many types of machine tools, including vertical machine tools. During the processing, the spindle of the vertical machine tool remains vertical, the tool is processed along the direction of the spindle, and the worktable places the workpiece to be processed horizontally and is clamped and fixed by a chuck.

[0003] When machining workpieces, coolant is usually used to impact the tool and workpiece to cool and remove chips at the same time. The coolant will splash onto the chuck of the workbench when cooling the tool and workpiece. Since the coolant carries chips and the coolant has a certain degree of adhesion, it is easy for the chips to stick to the chuck gap and be difficult to clean. In the long run, it is easy to cause the chuck clamping effect to decline, so there is still room for improvement. Summary of the invention

[0004] In order to improve the problem of debris sticking to the work surface, the present application provides a cooling and chip removal device and method for a machining center.

[0005] The present application provides a machining center cooling and chip removal device and method using the following technical solutions:

[0006] A cooling and chip removal device for a machining center comprises a spray cooling mechanism for spraying coolant on a workpiece on a workbench and a mounting seat installed on both sides of the workbench, wherein the mounting seat is slidably connected to two relatively arranged sliding frames, and both of the two sliding frames are provided with a shielding film, and the mounting seat is provided with a driving member for driving the two sliding frames to move closer to or away from each other. When the workpiece is processed, the two sliding frames are driven by the driving member to move closer to each other, and the shielding films of the two sliding frames follow the movement and jointly surround the outer side of the bottom of the workpiece, and the two shielding films jointly constitute a shielding barrier for covering the workbench chuck.

[0007] By adopting the above technical solution, when processing the workpiece, the cooling spray mechanism normally sprays coolant onto the workpiece processing surface. As the two sliding frames are driven by the driving member to approach each other, and drive the shielding films of the two sliding frames to converge and surround the outside of the bottom of the workpiece, the two shielding films together constitute a shielding barrier for covering the workbench chuck, thereby preventing the coolant and the entrained debris from falling onto the chuck, which is beneficial to improving the problem of debris sticking to the worktable surface.

[0008] Preferably, the ends of the two shielding films that are away from each other are both arranged to be inclined downward, a water collecting trough is provided on the surface of the workbench, and the inclined lower ends of the two shielding films are both arranged to face the water collecting trough.

[0009] By adopting the above technical solution, the shielding film is set to an inclined state, so as to guide the splashed coolant, so as to guide the coolant into the water collecting tank at the workbench, which is conducive to the collection and treatment of the coolant.

[0010] Preferably, the bottom of the water collection tank is connected to a drain pipe.

[0011] By adopting the above technical solution, a drain pipe is connected to the bottom of the water collecting tank, and the coolant containing debris can be discharged out of the water collecting tank through the drain pipe, which is conducive to timely releasing the space in the water collecting tank.

[0012] Preferably, the sliding frame includes a horizontal cross bar slidably connected to the mounting seat and two horizontal longitudinal bars fixedly connected to the horizontal cross bar, the two horizontal longitudinal bars are arranged opposite to each other, the inclined lower end of the shielding film is connected to the horizontal cross bar, and the two sides of the shielding film are respectively connected to the two horizontal longitudinal bars.

[0013] By adopting the above technical solution, the horizontal cross bar and the two horizontal longitudinal bars form a U-shaped structure with one end open, and a semi-enclosed connection method is adopted for the shielding film, which is beneficial to improve the stability of the shielding film, does not affect the smooth contact between the shielding film and the workpiece, and is conducive to the stable reception of splashed coolant.

[0014] Preferably, when the two shielding films converge at the workpiece, the two sliding frames are arranged at different heights, and the projections of the two shielding films on the surface of the workbench overlap.

[0015] By adopting the above technical solution, the two sliding frames are staggered in height, so that the shielding film has an overlapping area around the workpiece, which is beneficial to enhance the shielding effect around the workpiece and reduce the probability of splashing coolant flowing into the gap between the workpiece and the chuck.

[0016] Preferably, the driving member includes a bidirectional screw rotatably connected to the mounting seat and a longitudinal motor for driving the bidirectional screw to rotate. The bidirectional screw is longitudinally arranged and has two ends with threads passing through two horizontal cross bars.

[0017] By adopting the above technical solution, the bidirectional screw is rotated under the drive of the longitudinal motor, thereby driving the two horizontal cross bars to move closer to or away from each other, which is beneficial to improving the movement synchronization of the two shielding films.

[0018] Preferably, the cooling spray mechanism includes a positioning frame arranged on the workbench, a slider vertically slidably connected to the positioning frame, a lifting assembly for driving the slider to rise and fall, and a water spray assembly and an air jet assembly installed on the slider, the water spray assembly sprays coolant on the processing surface of the workpiece, and the air jet assembly sprays air on the processing surface of the workpiece.

[0019] By adopting the above technical scheme, the coolant can cool the workpiece, and at the same time, the jet assembly uses airflow to impact the debris on the surface of the workpiece, which is beneficial to cleaning the debris on the workpiece processing surface; in addition, under the drive of the lifting assembly, the water spray assembly and the jet assembly can move up and down with the slider, so that the position can be adjusted according to the height of the processing surface of the workpiece to cooperate with the processing of workpieces of different heights, and during the cutting process, the water spray assembly and the jet assembly can gradually move downward following the surface of the workpiece, which is beneficial to improve the applicability of the cooling and chip removal device.

[0020] A method for cooling and removing chips in a machining center, using a cooling and removing chip device in a machining center, comprises the following steps:

[0021] When processing a workpiece, the driving member is started, and under the drive of the driving member, the two sliding frames move toward each other until the two shielding films are gathered at the peripheral side of the bottom of the workpiece, and the two shielding films cover the chuck on the workbench;

[0022] Start the lifting assembly to drive the slider to move to the same height as the workpiece processing surface, and align the water spray assembly and the air jet assembly with the workpiece processing surface;

[0023] Start the water spray assembly and the air jet assembly. The water spray assembly sprays coolant on the machining surface of the workpiece to cool it down. The air jet assembly uses air flow to impact the debris on the surface of the workpiece to clean the debris on the machining surface of the workpiece. The coolant splashes onto the two shielding films, and the shielding films drain the coolant into the water collection tank.

[0024] By adopting the above technical solution, the two shielding films follow the two sliding frames to move closer to each other and surround the outer side of the bottom of the workpiece, thereby forming a shielding barrier for the workbench chuck. The inclined shielding film guides the splashed coolant, thereby guiding the coolant into the sump at the workbench, which is beneficial to the collection and processing of the coolant, thereby preventing the coolant and the entrained debris from falling onto the chuck, and helping to improve the problem of debris sticking to the workbench surface.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The cooling spray mechanism sprays coolant onto the workpiece processing surface to cool the workpiece processing surface. In addition, the two shielding films follow the two sliding frames to move closer to each other and surround the outside of the bottom of the workpiece, thereby forming a shielding barrier for the worktable chuck, thereby preventing the coolant and the entrained debris from falling onto the chuck, which is beneficial to improve the problem of debris sticking to the worktable surface.

[0027] 2. By setting the shielding film in an inclined state, the splashed coolant is guided so that the coolant is guided into the water collection tank at the workbench, which is conducive to the collection and treatment of the coolant;

[0028] 3. By staggering the height of the two sliding frames, the shielding film has an overlapping area around the workpiece, which is beneficial to enhance the shielding effect around the workpiece and reduce the probability of splashing coolant flowing into the gap between the workpiece and the chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the state when two shielding films in a cooling and chip removal device for a machining center according to an embodiment of the present application are away from each other.

[0030] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0031] Figure 3 This is a schematic diagram of the state when two shielding films are close to each other in a cooling and chip removal device for a machining center according to an embodiment of the present application.

[0032] Figure 4 yes Figure 3 A magnified schematic diagram of point B in the middle.

[0033] Explanation of the accompanying reference numerals: 1. Machine body; 2. Workbench; 21. Water collecting tank; 3. Cooling spray mechanism; 31. Water spray assembly; 32. Air jet assembly; 33. Positioning frame; 34. Lifting assembly; 35. Slider; 4. Mounting seat; 41. Receiving groove; 5. Driving member; 51. Bidirectional screw; 52. Longitudinal motor; 6. Sliding frame; 61. Horizontal cross bar; 62. Horizontal longitudinal bar; 7. Shielding film; 8. Workpiece; 9. Chuck. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The present application discloses a cooling and chip removal device for a machining center, referring to Figure 1 and Figure 2, including a spray cooling mechanism for spraying coolant on the workpiece 8 on the workbench 2 and mounting seats 4 installed on both sides of the workbench 2. In this embodiment, the machining center is specifically a vertical machine tool, which includes a machine body 1, a workbench 2 installed inside the machine body 1, and a chuck 9 installed on the surface of the workbench 2, and the chuck 9 is used to hold and fix the workpiece 8 placed vertically on the workbench 2.

[0036] In this embodiment, the spray cooling mechanism includes a positioning frame 33 installed on one side of the workbench 2, a slider 35 vertically slidably connected to the positioning frame 33, a lifting assembly 34 for driving the slider 35 to rise and fall, and a water spray assembly 31 and an air jet assembly 32 installed at the slider 35, wherein the lifting assembly 34 specifically adopts a universal vertical screw transmission mechanism, and can also be driven by a cylinder with a telescopic function. In this embodiment, the water spray assembly 31 includes a nozzle embedded in the slider 35, a water pipe connected to the nozzle, and a water tank connected to the water pipe, and the nozzle is tilted downward and toward the axis of the chuck 9. Coolant is stored in the water tank, and the coolant in the water tank is pumped to the nozzle to spray out, so as to spray the coolant on the processing surface of the workpiece 8.

[0037] The water spray assembly 31 and the air jet assembly 32 include an air jet pipe embedded in the slider 35, a connecting pipe connected to the air jet pipe, and a blower connected to the connecting pipe. The air jet pipe is tilted downward and faces the axis of the chuck 9. The air is passed into the connecting pipe through the blower and sprayed out from the air jet pipe, thereby spraying air to the processing surface of the workpiece 8. In this embodiment, the connecting pipe and the water pipe are both hoses to adapt to the sliding action of the slider 35. The coolant can cool the workpiece 8. At the same time, the air jet assembly 32 impacts the debris on the surface of the workpiece 8 with air flow, which is conducive to cleaning the debris on the processing surface of the workpiece 8; in addition, under the drive of the lifting assembly 34, the water spray assembly 31 and the air jet assembly 32 can move up and down with the slider 35, so that the position can be adjusted according to the height of the processing surface of the workpiece 8 to match the processing of workpieces 8 of different heights, and during the cutting process, the water spray assembly 31 and the air jet assembly 32 can gradually move down with the surface of the workpiece 8, which is conducive to improving the applicability of the cooling and chip removal device.

[0038] In other embodiments, multiple groups of water spray assemblies 31 and air jet assemblies 32 may be added and distributed circumferentially around the chuck 9 so as to spray the workpiece 8 in all directions, which is beneficial to improving the cooling and chip removal coverage of the cooling and chip removal device.

[0039] Reference Figure 3 and Figure 4In this embodiment, the two mounting seats 4 are symmetrically distributed on both sides of the chuck 9, and two relatively arranged sliding frames 6 are slidably connected between the two mounting seats 4, wherein the two sliding frames 6 are both fixedly installed with shielding films 7. In addition, the mounting seats 4 are installed with driving members 5 for driving the two sliding frames 6 to move closer to or away from each other. When the workpiece 8 is processed, the two sliding frames 6 are driven by the driving member 5 to move closer to each other, and the shielding films 7 of the two sliding frames 6 follow the movement and jointly surround the outer side of the bottom of the workpiece 8. The chuck 9 is located under the two shielding films 7, and the two shielding films 7 together constitute a shielding barrier for covering the chuck 9 of the workbench 2, thereby preventing the coolant and the entrained debris from falling onto the chuck 9, which is beneficial to improving the problem of debris sticking to the surface of the workbench 2.

[0040] In this embodiment, the shielding film 7 is a high-temperature resistant impermeable film. The ends of the two shielding films that are away from each other are tilted downward, and a water collecting tank 21 is provided on the surface of the workbench 2. The tilted lower ends of the two shielding films 7 are both arranged toward the water collecting tank 21. The shielding film 7 in the tilted state drains the splashed coolant so as to guide the coolant into the water collecting tank 21 at the workbench 2, which is conducive to the collection and treatment of the coolant. In addition, the bottom of the water collecting tank 21 is connected to a drain pipe, which is connected to the outside of the machine body 1. The coolant with debris can be discharged from the water collecting tank 21 through the drain pipe, which is conducive to timely release of the space in the water collecting tank 21.

[0041] In this embodiment, the sliding frame 6 includes a horizontal crossbar 61 slidably connected to the mounting seat 4 and two horizontal longitudinal bars 62 fixedly connected to the horizontal crossbar 61, wherein the two horizontal longitudinal bars 62 are arranged opposite to each other, the inclined lower end of the shielding film 7 is connected to the horizontal crossbar 61, and the two sides of the shielding film 7 are respectively connected to the inner sides of the two horizontal longitudinal bars 62. The horizontal crossbar 61 and the two horizontal longitudinal bars 62 form a U-shaped structure with one end open, and the shielding film 7 is connected in a semi-enclosed manner, which is conducive to improving the stability of the shielding film 7, and does not affect the smooth contact between the shielding film 7 and the workpiece 8, which is conducive to stably receiving the splashed coolant. In this embodiment, the width of the shielding film 7 is greater than the distance between the two horizontal longitudinal bars 62, so that the shielding film 7 can be deformed when it reaches the workpiece 8. When the ends of the two horizontal longitudinal bars 62 pass over the workpiece 8, the front end of the shielding film 7 is squeezed and deformed and wraps the workpiece 8 for more than half a circle, which is conducive to improving the coverage area and coverage effect of the shielding film 7.

[0042] In this embodiment, a receiving groove 41 for receiving the driving member 5 is provided on the inner side of the two mounting seats 4, and the receiving groove 41 extends longitudinally. The two ends of the horizontal cross bar 61 are respectively slidably connected to the receiving grooves 41 of the two mounting seats 4, and the two mounting seats 4 are both equipped with driving members 5. Specifically, the driving member 5 includes a bidirectional screw 51 rotatably connected to the mounting seat 4 and a longitudinal motor 52 for driving the bidirectional screw 51 to rotate. The bidirectional screw 51 is accommodated in the receiving groove 41. The bidirectional screw 51 is longitudinally arranged and the two ends of the bidirectional screw 51 are respectively threaded through the ends of the two horizontal cross bars 61. Driven by the longitudinal motor 52, the bidirectional screw 51 rotates, thereby driving the two horizontal cross bars 61 to move closer to or away from each other, which is beneficial to improving the movement synchronization of the two shielding films 7.

[0043] The embodiment of the present application also discloses a method for cooling and removing chips in a machining center, which uses a cooling and removing chip device in a machining center, and includes the following steps:

[0044] When processing the workpiece 8, the longitudinal motor 52 of the driving member 5 is started, the bidirectional screw 51 rotates, and the two sliding frames 6 move toward each other until the two shielding films 7 are gathered around the bottom of the workpiece 8, and the two shielding films 7 cover the chuck 9 on the workbench 2;

[0045] Start the lifting assembly 34 to drive the slider 35 to move to the same height as the processing surface of the workpiece 8, and align the water spray assembly 31 and the air spray assembly 32 with the processing surface of the workpiece 8;

[0046] The water spray component 31 and the air jet component 32 are started. The water spray component 31 sprays coolant on the processing surface of the workpiece 8 to cool it down. The air jet component 32 performs air flow impact on the debris on the surface of the workpiece 8 to clean the debris on the processing surface of the workpiece 8. The coolant splashes onto the two shielding films 7, and the shielding films 7 drain the coolant into the water collecting tank 21.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooling and chip removal device for a machining center, characterized in that: The invention comprises a cooling spray mechanism (3) for spraying a cooling liquid on a workpiece (8) on a workbench (2) and a mounting seat (4) mounted on both sides of the workbench (2); the mounting seat (4) is slidably connected to two sliding frames (6) arranged opposite to each other; the two sliding frames (6) are both provided with a shielding film (7); the mounting seat (4) is provided with a driving member (5) for driving the two sliding frames (6) to move closer to or farther from each other; when processing the workpiece (8), the two sliding frames (6) are driven by the driving member (5) to move closer to each other, and the shielding films (7) of the two sliding frames (6) follow the movement and jointly surround the outer side of the bottom of the workpiece (8); the two shielding films (7) jointly constitute a shielding barrier for covering a chuck (9) of the workbench (2); The sliding frame (6) comprises a horizontal crossbar (61) slidably connected to the mounting seat (4) and two horizontal longitudinal bars (62) fixedly connected to the horizontal crossbar (61), the two horizontal longitudinal bars (62) being arranged opposite to each other, the inclined lower end of the shielding film (7) being connected to the horizontal crossbar (61), and the two sides of the shielding film (7) being respectively connected to the two horizontal longitudinal bars (62); The width of the shielding film (7) is greater than the distance between the two horizontal longitudinal rods (62), so that the shielding film (7) can be deformed when it contacts the workpiece (8).

2. The cooling and chip removal device for a machining center according to claim 1, characterized in that: The ends of the two shielding films (7) that are away from each other are both arranged to be inclined downwards, a water collecting tank (21) is arranged on the surface of the workbench (2), and the inclined lower ends of the two shielding films (7) are both arranged to face the water collecting tank (21).

3. The cooling and chip removal device for a machining center according to claim 2, characterized in that: The bottom of the water collecting tank (21) is connected to a drainage pipe.

4. The cooling and chip removal device for a machining center according to claim 3, characterized in that: When the two shielding films (7) are brought together at the workpiece (8), the two sliding frames (6) are arranged at different heights, and the projections of the two shielding films (7) on the surface of the workbench (2) overlap.

5. The cooling and chip removing device for a machining center according to claim 4, characterized in that: The driving member (5) comprises a bidirectional screw (51) rotatably connected to the mounting seat (4) and a longitudinal motor (52) for driving the bidirectional screw (51) to rotate. The bidirectional screw (51) is arranged longitudinally and has two ends respectively threaded through two horizontal cross bars (61).

6. The cooling and chip removing device for a machining center according to claim 5, characterized in that: The cooling spray mechanism (3) comprises a positioning frame (33) arranged at the workbench (2), a slider (35) vertically slidably connected to the positioning frame (33), a lifting assembly (34) for driving the slider (35) to move up and down, and a water spray assembly (31) and an air jet assembly (32) installed at the slider (35), wherein the water spray assembly (31) sprays cooling liquid onto the processing surface of the workpiece (8), and the air jet assembly (32) sprays air onto the processing surface of the workpiece (8).

7. A method for cooling and removing chips in a machining center, using a cooling and removing chip device for a machining center as claimed in claim 2, characterized in that: The following steps are involved: When processing a workpiece, the driving member is started, and under the drive of the driving member, the two sliding frames move toward each other until the two shielding films are gathered at the peripheral side of the bottom of the workpiece, and the two shielding films cover the chuck on the workbench; Start the lifting assembly to drive the slider to move to the same height as the workpiece processing surface, and align the water spray assembly and the air jet assembly with the workpiece processing surface; Start the water spray assembly and the air jet assembly. The water spray assembly sprays coolant on the machining surface of the workpiece to cool it down. The air jet assembly uses air flow to impact the debris on the surface of the workpiece to clean the debris on the machining surface of the workpiece. The coolant splashes onto the two shielding films, and the shielding films drain the coolant into the water collection tank.

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