Feed structure for machine tool

Abstract

The present invention discloses a feeding structure for machine tools, including a guide rail frame and a guide rail protection assembly, the guide rail frame is composed of a No. 1 motor, a No. 2 motor, an outer frame, a No. 3 motor, a crossbeam, and an inner frame, the guide rail frame is used for feeding during part processing, the outer frame and the inner frame are connected by sliding up and down, the No. 3 motor is fixedly arranged at the top of the outer frame, the front end of the No. 2 motor is fixedly connected with a sliding sleeve, the output shaft of the No. 2 motor is fixedly connected with the No. 1 screw rod, the No. 1 screw rod is threadedly connected with the outer frame, counterweight threaded sleeves are arranged on both sides of the No. 1 screw rod, a spring guide rod is fixedly arranged on the upper surface of the inner frame, and a counterweight spring is arranged on the spring guide rod. The present application provides a skin so that the guide rails in the device can be wrapped, so that the device can avoid the problem of scratching the guide rails due to metal debris falling on the guide rails during cutting, thereby affecting the accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool feeding components, in particular to a feeding structure for machine tools. Background Art

[0002] The feed mechanism of a machine tool is mainly used to control the motion path, speed and positioning accuracy of the tool or workpiece. During the machining process, the feed mechanism is precisely controlled so that the machine tool can perform linear or rotational motion according to the preset program to complete operations such as drilling, milling and turning.

[0003] Due to structural limitations, the existing devices of this type do not provide adequate protection for the guide rails. For example, a machine tool feed device disclosed in Chinese Patent Publication No. "CN118404371A" has a primary slide rail exposed to the outside, which results in the chips cut during daily use falling onto the primary slide rail of the device. Moreover, the metal chips vary in size, and some smaller chips run the risk of entering between the mechanism installed on the primary guide rail and the surface of the primary guide rail, thereby causing the surface of the guide rail to be scratched, which in turn affects the accuracy of the guide rail itself. At the same time, during use, the guide rail needs to be lubricated with oil, and the lubricating oil will stick the smaller metal chips to the surface of the guide rail, which causes trouble in cleaning the guide rail. Accordingly, the present application proposes a feed structure for machine tools. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a feeding structure for a machine tool.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A feeding structure for a machine tool, comprising a guide rail frame and a guide rail protection assembly, wherein the guide rail frame is composed of a No. 1 motor, a No. 2 motor, an outer frame, a No. 3 motor, a crossbeam, and an inner frame, wherein the guide rail frame is used for feeding during part processing, wherein the outer frame is slidably connected to the inner frame up and down, wherein the No. 3 motor is fixedly arranged at the top end of the outer frame, wherein a sliding sleeve is fixedly connected to the front end of the No. 2 motor, wherein the output shaft of the No. 2 motor is fixedly connected to a No. 1 lead screw, wherein the No. 1 lead screw is threadedly connected to the outer frame, wherein counterweight threaded sleeves are arranged on both sides of the No. 1 lead screw, wherein a spring guide rod is fixedly arranged on the upper surface of the inner frame, wherein a counterweight spring is arranged on the spring guide rod;

[0007] A plurality of guide rails are fixedly arranged on the crossbeam, a number two screw rod is fixedly connected to the output shaft of the number one motor, the number two screw rod is rotationally connected to the crossbeam, and the number two screw rod is threadedly connected to the inner frame.

[0008] Preferably, the guide rail protection assembly is composed of a protection joint, a skin, a cleaning box, an oil pot, and a bottom cleaning roller. The guide rail protection assembly is used for protecting and cleaning the guide rail. The rearmost protection joint is fixedly connected to the inner frame, the protection joint is slidably connected to the guide rail, and a connecting bolt is threadedly connected to the frontmost protection joint.

[0009] The cleaning box and the oil pot are fixedly connected, and the cleaning box and the oil pot are slidably connected to the upper surface of the crossbeam, and a cleaning motor is fixedly arranged on the side wall of the cleaning box, and a transmission shaft is fixedly connected to the output shaft of the cleaning motor, and the transmission shaft, the upper part of the transmission shaft is fixedly connected with a one-way wheel, and the rear of the one-way wheel is fixedly connected with a transmission belt pulley group, and the transmission belt pulley group is connected to the bottom cleaning roller, an upper cleaning roller is arranged between the inner side walls of the cleaning box, and the one-way wheel is connected to the pulley through a transmission belt, and a bevel gear group is fixedly arranged at the center of the one-way wheel, and a driving wheel is fixedly arranged at the lower end of the bevel gear group, and a driven wheel assembly is fixedly arranged at the lower end of the side wall of the cleaning box, and an external toothed belt is arranged on the outer surfaces of the driving wheel and the driven wheel assembly, and a meshing block is fixedly arranged on the side wall of the protection joint, and a guide block is fixedly arranged on the upper surface of the meshing block.

[0010] Preferably, a guide tube is provided in the oil pot, and the guide tube passes through the bottom surface of the oil pot. A blocking rod is provided in the guide tube, and the number of the blocking rods is two. A linkage rod is fixedly provided on the upper surface of the blocking rod, and the right end of the linkage rod is fixedly connected to an oil delivery rod, and a No. 1 spring is provided between the oil delivery rod and the oil pot.

[0011] Preferably, a steel ball is slidably arranged in the protection joint, a No. 2 spring is fixedly arranged on the surface of the steel ball, the No. 2 spring is fixedly connected to the protection joint, and the protection joint is slidably connected to the guide rail.

[0012] Preferably, a gear transmission case is fixedly disposed on the lower surface of the outer frame, and a variable speed power motor is fixedly disposed on the side wall of the outer frame.

[0013] Preferably, the protection section close to one end of the inner frame is fixedly connected to the inner frame.

[0014] Preferably, a one-way pin is slidably arranged inside the one-way wheel, and a No. 3 spring is fixedly arranged between the one-way pin and the one-way wheel.

[0015] Preferably, an oil inlet is fixedly provided on the upper surface of the oil pot, and a dust plug is provided in the oil inlet.

[0016] The present invention has the following beneficial effects:

[0017] 1. By setting the skin, the guide rail in the device can be wrapped, so that the device can avoid the problem of the guide rail being scratched due to metal debris falling on the guide rail during cutting, thereby affecting the accuracy.

[0018] 2. By setting the nodes, the skin of the device can be folded when not in use and can be straightened when in use, which facilitates the cleaning of the cleaning box and reduces the impact on the travel of the guide rail.

[0019] 3. By setting up a cleaning box, the metal debris on the skin can be cleaned, which allows the device to further protect the guide rail and makes the device as a whole cleaner and tidier.

[0020] 4. By setting the steel balls, guide blocks and meshing blocks, the oil pot in the device can automatically supply oil to the guide rail without manual oil supply, which makes the device more convenient to use and saves the trouble of manually cleaning or oiling the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a feeding structure for a machine tool proposed by the present invention;

[0022] Figure 2 for Figure 1 A magnified image;

[0023] Figure 3 This is a schematic structural diagram of a guide rail frame in a feeding structure for a machine tool proposed by the present invention;

[0024] Figure 4 This is a structural schematic diagram of a guide rail protection assembly in a feed structure for a machine tool proposed by the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point B;

[0026] Figure 6 This is a schematic structural diagram of an oil pot in a feeding structure for a machine tool proposed by the present invention;

[0027] Figure 7 for Figure 6 Enlarged view of point C;

[0028] Figure 8 A schematic diagram of the structure of a cleaning box in a feeding structure for a machine tool proposed by the present invention;

[0029] Fig. 9 A cross-sectional view of a protective joint in a feeding structure for a machine tool proposed by the present invention;

[0030] Fig.10A cross-sectional view of a one-way wheel in a feeding structure for a machine tool proposed by the present invention;

[0031] Fig.11 The present invention is a schematic diagram of the position of the second screw in the feed structure for a machine tool proposed by the present invention.

[0032] In the figure: 1 No. 1 motor, 2 driven wheel assembly, 3 spring guide rod, 4 counterweight spring, 5 counterweight threaded sleeve, 6 No. 2 motor, 7 No. 1 screw rod, 8 outer frame, 9 gear transmission, 10 inner frame, 11 guide rail, 12 crossbeam, 13 No. 3 motor, 14 sliding sleeve, 15 oil inlet, 16 variable speed power motor, 17 cleaning box, 18 oil pot, 19 cleaning motor, 20 linkage rod, 21 dust plug, 22 blocking rod, 23 skin , 24 protection joint, 25 steel ball, 26 guide block, 27 meshing block, 28 No. 2 spring, 29 guide tube, 30 oil delivery rod, 31 No. 1 spring, 32 driving wheel, 33 upper cleaning roller, 34 bottom cleaning roller, 35 pulley, 36 transmission belt, 37 bevel gear set, 38 transmission pulley set, 39 external toothed belt, 40 transmission shaft, 41 connecting bolt, 42 one-way wheel, 43 No. 2 screw rod, 44 one-way pin, 45 No. 3 spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0034] Reference Figure 1-2 , a feeding structure for a machine tool, comprising a guide rail frame and a guide rail protection assembly;

[0035] The guide rail frame is composed of motor No. 1, motor No. 2, 6, outer frame 8, motor No. 3, beam 12, and inner frame 10. The guide rail frame is used for feeding during parts processing. The outer frame 8 and the inner frame 10 are connected by sliding up and down. Motor No. 3 is fixedly arranged on the top of the outer frame 8. A gear transmission case 9 is fixedly arranged on the lower surface of the outer frame 8. A variable speed power motor 16 is fixedly arranged on the side wall of the outer frame 8.

[0036] The front end of the No. 2 motor 6 is fixedly connected with a sliding sleeve 14, the output shaft of the No. 2 motor 6 is fixedly connected with the No. 1 screw rod 7, the No. 1 screw rod 7 is threadedly connected to the outer frame 8, counterweight threaded sleeves 5 are arranged on both sides of the No. 1 screw rod 7, and a spring guide rod 3 is fixedly arranged on the upper surface of the inner frame 10, and a counterweight spring 4 is arranged on the spring guide rod 3.

[0037] A plurality of guide rails 11 are fixedly arranged on the cross beam 12 , a second screw rod is fixedly connected to the output shaft of the first motor 1 and is not led out, the second screw rod is rotationally connected to the cross beam 12 , and the second screw rod is threadedly connected to the inner frame 10 .

[0038] In this embodiment, by controlling the forward and reverse rotation of motor No. 1 and motor No. 2 6, the rise or fall of beam 12 or the forward or backward movement of beam 12 can be controlled. This is because screw No. 1 7 is threadedly connected to outer frame 8, and screw No. 2 43 is also threadedly connected to inner frame 10. Embodiment 2

[0039] Reference Figure 3-4 , a feeding structure for a machine tool, comprising a guide rail frame and a guide rail protection assembly;

[0040] The guide rail protection assembly is composed of a protection section 24, a cover 23, a cleaning box 17, an oil pot 18, and a bottom cleaning roller 34. The guide rail protection assembly is used for protecting and cleaning the guide rails.

[0041] The protection section 24 at the rear end is fixedly connected to the inner frame 10 , and the protection section 24 is slidably connected to the guide rail 11 . A connection bolt 41 is threadedly connected to the protection section 24 at the front end.

[0042] A steel ball 25 is slidably arranged inside the protective joint 24 , and the protective joint 24 near one end of the inner frame 10 is fixedly connected to the inner frame 10 , a No. 2 spring 28 is fixedly arranged on the surface of the steel ball 25 , and the No. 2 spring 28 is fixedly connected to the protective joint 24 , and the protective joint 24 is slidably connected to the guide rail 11 .

[0043] In this embodiment, all the protection nodes 24 are slidably connected to the guide rail 11, and the first protection node 24 at the end close to the inner frame 10 is fixedly connected to the inner frame. Since the first protection node 24 at the end away from the inner frame 10 is threadedly connected to the connecting bolt 41, the protection node 24 can be connected to a mechanism that needs to be additionally provided on the guide rail 11. In this way, the guide rail 11 of the device can be protected to prevent the cut metal chips from scratching the surface of the guide rail 11.

[0044] Furthermore, the skin 23 is made of a flexible material, and the protective node 24 is made of a metal material. The skin 23 wraps the guide rail 11, and metal debris will fall on the skin 23 and cannot directly contact the guide rail 11, thereby preventing the metal debris from directly contacting the guide rail 11, thereby avoiding the problem of reduced accuracy caused by scratches on the guide rail 11.

[0045] Furthermore, the steel ball 25 and the second spring 28 are arranged in a stepped hole, and there is a certain gap between the steel ball 25 and the protective node 24, which can prevent metal debris from entering the interior of the skin 23 through the stepped hole while taking into account lubrication. Embodiment 3

[0046] Reference Figure 4 , Figure 5 and Figure 6, a feeding structure for a machine tool, comprising a guide rail frame and a guide rail protection assembly;

[0047] A guide pipe 29 is provided in the oil pot 18, and the guide pipe 29 passes through the bottom surface of the oil pot 18. A blocking rod 22 is provided in the guide pipe 29. There are two blocking rods 22. A linkage rod 20 is fixedly provided on the upper surface of the blocking rod 22. The right end of the linkage rod 20 is fixedly connected to an oil delivery rod 30. A No. 1 spring 31 is provided between the oil delivery rod 30 and the oil pot 18.

[0048] The oil pot 18 is used to store lubricating oil. When the guide rail protection assembly starts to clean metal debris, the oil pot 18 can lubricate the guide rail at the same time. A notch is provided at the lower end of the guide pipe 29. When the blocking rod 22 is located Figure 5 The two blocking rods 22 are connected by the linkage rod 20, and the linkage rod 20 is connected to the oil feeding rod 30. When the inclined surface at the lower end of the oil feeding rod 30 is lifted by the guide block 26, the linkage rod 20 will also be lifted, and then the blocking rod 22 will be lifted together. At this time, the gap at the lower end of the guide tube 29 will open, and the lubricating oil will flow out. It should be noted that when the guide tube 29 is pressed on the steel ball 25, the gap at the lower end of the guide tube 29 will open, and the lubricating oil will flow along the surface of the steel ball 25 to the guide rail 11. Embodiment 4

[0049] Reference Figure 4 , Figure 5 and Figure 6 , a feeding structure for a machine tool, comprising a guide rail frame and a guide rail protection assembly;

[0050] The cleaning box 17 and the oil pot 18 are fixedly connected. The cleaning box 17 and the oil pot 18 are slidably connected to the upper surface of the cross beam 12. The upper surface of the oil pot 18 is fixedly provided with an oil inlet 15, and a dust plug 21 is provided in the oil inlet 15.

[0051] A cleaning motor 19 is fixedly arranged on the side wall of the cleaning box 17, and a transmission shaft 40 is fixedly connected to the output shaft of the cleaning motor 19. A one-way wheel 42 is fixedly connected to the transmission shaft 40, and a one-way pin 44 is slidingly arranged inside the one-way wheel 42. A No. 3 spring 45 is fixedly arranged between the one-way pin 44 and the one-way wheel 42.

[0052] A transmission pulley group 38 is fixedly connected to the rear of the one-way wheel 42, and the transmission pulley group 38 is connected to the bottom cleaning roller 34. An upper cleaning roller 33 is arranged between the inner side walls of the cleaning box 17. The one-way wheel 42 is connected to the pulley 35 through a transmission belt 36. A bevel gear group 37 is fixedly arranged at the center of the one-way wheel 42, and a driving wheel 32 is fixedly arranged at the lower end of the bevel gear group 37. A driven wheel assembly 2 is fixedly arranged at the lower end of the side wall of the cleaning box 17, and an external toothed belt 39 is arranged on the outer surfaces of the driving wheel 32 and the driven wheel assembly 2. An engaging block 27 is fixedly arranged on the side wall of the protection node 24, and a guide block 26 is fixedly arranged on the upper surface of the engaging block 27.

[0053] In this embodiment, the upper cleaning roller 33 and the bottom cleaning roller 34 are used to clean the metal debris on the skin 23 and the beam 12. When the device starts to work, the cleaning motor 19 will drive the transmission shaft 40 to rotate, and transmit the power to the outer toothed belt 39 through the transmission pulley set 38 and the transmission belt 36, the bevel gear set 37 and the driving wheel 32. The cleaning box 17 and the oil pot 18 move forward, and the outer toothed belt 39 moves forward. Figure 7 The length of the outer toothed belt 39 in the state is greater than the distance between the two engagement blocks 27, so that the outer toothed belt 39 can always be engaged with the engagement blocks 27.

[0054] Furthermore, when the cleaning box 17 moves, it will drag the oil pot 18 with it, and at the same time, the oil delivery rod 30 will be intermittently opened under the action of the guide block 26, so as to complete the outflow of lubricating oil, and the metal debris will be rolled into the cleaning box 17 under the rotation of the upper cleaning roller 33 and the bottom cleaning roller 34. When the cleaning box 17 reaches the end, the cleaning motor 19 can be reversed to reset the cleaning box 17. Due to the action of the one-way wheel 42, when the cleaning box 17 moves away from the inner frame 10, the one-way wheel 42 can make the mechanism inside and on the side wall of the cleaning box 17 operate normally. At this time, you can refer to Figure 7 When the cleaning motor 19 rotates in the reverse direction, only the bevel gear set 37 can rotate, thereby driving the outer toothed belt 39 to rotate in the opposite direction, thereby completing the resetting of the cleaning box 17.

[0055] For further reference, Fig. 9 The bottom of the one-way pin 44 inside the one-way wheel 42 is an inclined surface, and the two parts of the one-way wheel 42 are rotatably connected to each other. When the one-way wheel 42 rotates in one direction, its power can be transmitted normally under the action of the one-way pin 44. When the one-way wheel 42 rotates in the other direction, due to the inclined surface at the bottom of the one-way pin 44, the one-way pin 44 will be pushed upward and reset under the action of the No. 3 spring 45. Since the one-way pin 44 is pushed upward at this time, the power can only be transmitted to the bevel gear set 37.

[0056] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A feeding structure for a machine tool, comprising a guide rail frame and a guide rail protection assembly, characterized in that: The guide rail frame is composed of a No. 1 motor (1), a No. 2 motor (6), an outer frame (8), a No. 3 motor (13), a crossbeam (12), and an inner frame (10). The guide rail frame is used for feeding during part processing. The outer frame (8) and the inner frame (10) are slidably connected up and down. The No. 3 motor (13) is fixedly arranged at the top of the outer frame (8). The front end of the No. 2 motor (6) is fixedly connected with a sliding sleeve (14). The output shaft of the No. 2 motor (6) is fixedly connected with a No. 1 screw rod (7). The No. 1 screw rod (7) is threadedly connected with the outer frame (8). Counterweight threaded sleeves (5) are arranged on both sides of the No. 1 screw rod (7). A spring guide rod (3) is fixedly arranged on the upper surface of the inner frame (10). A counterweight spring (4) is arranged on the spring guide rod (3). A plurality of guide rails (11) are fixedly arranged on the crossbeam (12); a second screw rod (43) is fixedly connected to the output shaft of the first motor (1); the second screw rod is rotatably connected to the crossbeam (12); and the second screw rod is threadedly connected to the inner frame (10); The guide rail protection assembly is composed of a protection joint (24), a cover (23), a cleaning box (17), an oil pot (18), and a bottom cleaning roller (34). The guide rail protection assembly is used for protecting and cleaning the guide rail. The protection joint (24) at the rear end is fixedly connected to the inner frame (10), the protection joint (24) is slidably connected to the guide rail (11), and a connecting bolt (41) is threadedly connected to the front end protection joint (24); The cleaning box (17) and the oil pot (18) are fixedly connected, and the cleaning box (17) and the oil pot (18) are slidably connected to the upper surface of the crossbeam (12). A cleaning motor (19) is fixedly arranged on the side wall of the cleaning box (17), and a transmission shaft (40) is fixedly connected to the output shaft of the cleaning motor (19). The transmission shaft (40) is fixedly connected to a one-way wheel (42) on the upper side of the transmission shaft (40), and a transmission pulley group (38) is fixedly connected to the rear of the one-way wheel (42), and the transmission pulley group (38) is connected to the bottom cleaning roller (34). The inner wall of the cleaning box (17) An upper cleaning roller (33) is arranged between the one-way wheel (42), the one-way wheel (42) is connected to the pulley (35) through a transmission belt (36), a bevel gear set (37) is fixedly arranged at the center of the one-way wheel (42), a driving wheel (32) is fixedly arranged at the lower end of the bevel gear set (37), a driven wheel assembly (2) is fixedly arranged at the lower end of the side wall of the cleaning box (17), an external toothed belt (39) is arranged on the outer surface of the driving wheel (32) and the driven wheel assembly (2), an engaging block (27) is fixedly arranged on the side wall of the protection node (24), and a guide block (26) is fixedly arranged on the upper surface of the engaging block (27).

2. A feeding structure for a machine tool according to claim 1, characterized in that: The oil pot (18) is provided with a flow guide pipe (29), the flow guide pipe (29) penetrates the bottom surface of the oil pot (18), and a blocking rod (22) is provided in the flow guide pipe (29). The number of the blocking rods (22) is two, and a linkage rod (20) is fixedly provided on the upper surface of the blocking rod (22). The right end of the linkage rod (20) is fixedly connected to an oil delivery rod (30), and a No. 1 spring (31) is provided between the oil delivery rod (30) and the oil pot (18).

3. A feeding structure for a machine tool according to claim 1, characterized in that: A steel ball (25) is slidably arranged in the protection joint (24), a second spring (28) is fixedly arranged on the surface of the steel ball (25), the second spring (28) is fixedly connected to the protection joint (24), and the protection joint (24) is slidably connected to the guide rail (11).

4. A feeding structure for a machine tool according to claim 1, characterized in that: A gearbox (9) is fixedly arranged on the lower surface of the outer frame (8), and a variable speed power motor (16) is fixedly arranged on the side wall of the outer frame (8).

5. A feeding structure for a machine tool according to claim 1, characterized in that: The protection section (24) close to one end of the inner frame (10) is fixedly connected to the inner frame (10).

6. A feeding structure for a machine tool according to claim 1, characterized in that: A one-way pin (44) is slidably arranged inside the one-way wheel (42), and a No. 3 spring (45) is fixedly arranged between the one-way pin (44) and the one-way wheel (42).

7. A feeding structure for a machine tool according to claim 1, characterized in that: An oil inlet (15) is fixedly provided on the upper surface of the oil pot (18), and a dust plug (21) is provided in the oil inlet (15).

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