A CNC machine tool

Abstract

The present invention relates to the field of machine tool technology, and specifically discloses a CNC machine tool, including a base, columns are installed at both ends of the top of the base, a crossbeam is provided above the top of the base, the bottom of the crossbeam is connected to the top of the column, the top of the crossbeam is connected to a pallet, a square ram is provided on the pallet, a lifting rod is movably provided on one side of the base, a second fixed column is movably installed on the lifting rod, and a first connecting piece is movably installed on the second fixed column. The present invention is provided with a rotating block, and when the device needs maintenance after use, the filling pump is started, and the grease in the grease storage box will be sprayed outward through the filling nozzle. Combined with the movement of the first connecting piece, the grease can be sprayed on the slide rail above the column, and the automatic spraying of grease on the slide rail of the device can be realized without the need for manual operation by the staff, thereby reducing the labor intensity of the staff and increasing the convenience of use of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tools, and in particular to a numerically controlled machine tool. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool, which is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process the parts according to the shape and size required by the drawing.

[0003] At present, CNC machine tools need to be maintained regularly when they are in use. The slide rails on the CNC machine tools need to be lubricated with grease. CNC machine tools are generally large in size, which not only increases the difficulty of the workers' work, but also increases the labor intensity of the workers. In the process of using the CNC machine tools, metal debris will remain inside the machine tools, which also needs to be cleaned by the staff, further increasing the labor intensity of the staff. Summary of the invention

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

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

[0006] A numerically controlled machine tool comprises a base, wherein columns are installed at both ends of the top of the base, a crossbeam is provided above the top of the base, the bottom of the crossbeam is connected to the top of the column, the top of the crossbeam is connected to a support plate, a square slide is provided on the support plate, a lifting rod is movably provided on one side of the base, a second fixed column is movably installed on the lifting rod, a first connecting piece is movably installed on the second fixed column, and an auxiliary mechanism is provided on the first connecting piece.

[0007] Preferably, both ends of the lifting rod are movably connected to the first fixing column on the side close to the base, and the bottom of the first fixing column away from the lifting rod is movably connected to a connecting bottom rod, and the end of the connecting bottom rod facing the base is connected to the base.

[0008] Preferably, an electric telescopic rod is embedded and installed at one end of the connecting bottom rod facing the first fixed column, the telescopic end of the electric telescopic rod faces the first fixed column, and the telescopic end of the electric telescopic rod is connected to the first fixed column.

[0009] Preferably, a second slide groove is formed on a side of the first fixing column facing the lifting rod, a second electric slider is installed on a side of the lifting rod close to the second slide groove, and the second electric slider is slidably installed inside the second slide groove.

[0010] Preferably, a first slot is provided on a side of the lifting rod away from the first fixed column, a first threaded rod is rotatably installed inside the first slot, a first rotating motor is installed at one end of the lifting rod, an output end of the first rotating motor movably penetrates the end wall of the lifting rod and is connected to the first threaded rod, a sliding block is slidably installed inside the first slot, the first threaded rod threadably penetrates the sliding block, a connecting block is movably connected to the bottom of the second fixed column, and the connecting block is connected to the sliding block on the side facing the lifting rod.

[0011] Preferably, a fourth rotating motor is embedded in the top of the connecting block, a second connecting piece is installed at the output end of the fourth rotating motor, a second fixed column is rotatably installed inside the second connecting piece toward one end of the second connecting piece, a second rotating motor is installed on one side of the second connecting piece, and the output end of the second rotating motor movably passes through the side wall of the second connecting piece and is connected to the second fixed column.

[0012] Preferably, a first slide groove is provided on a side of the second fixing column away from the cross beam, and a first electric slider is installed on a side of the first connecting member close to the second fixing column, and the first electric slider is slidably installed inside the first slide groove.

[0013] Preferably, the auxiliary mechanism includes a rotating block and a vacuum cleaner, the rotating block is rotatably installed inside the first connecting member, a third rotating motor is installed on the top of the first connecting member, the output end of the third rotating motor movably passes through the end wall of the first connecting member and is connected to the rotating block, and vacuum cleaners are installed on both sides of the first connecting member.

[0014] Preferably, a third slot is provided on the side of the rotating block away from the second fixed column, a filling pump and a grease storage box are respectively installed on both sides of the bottom end of the inner wall of the third slot, an electric extension rod is installed in the middle of the bottom end of the inner wall of the third slot, the extended end of the electric extension rod is away from the bottom end of the inner wall of the first slot, a filling nozzle is installed on the extended end of the electric extension rod, a flip plate is provided inside the first slot on the side away from the electric extension rod, an open slot is penetrated through the flip plate at a position close to the filling nozzle, the filling nozzle can pass through the open slot, a rotating shaft is embedded and installed on the top and bottom side walls of one side of the flip plate, and the end of the rotating shaft away from the flip plate is connected to the inner wall of the third slot.

[0015] Preferably, the rotating block is provided with a second slot on the side away from the third slot, a cleaning brush is provided inside the second slot, lifting slots are provided on the inner walls on both sides of the second slot, a lifting electric slider is installed on the side of the cleaning brush close to the lifting slot, the lifting electric slider is slidably installed inside the lifting slot, and a laser sensor is embedded and installed on the side of the rotating block adjacent to the second slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, by providing a rotating block, when the device needs maintenance after use, the filling pump is started, and the grease in the grease storage box is sprayed outward through the filling nozzle. Combined with the movement of the first connecting piece, the grease can be sprayed on the slide rail above the column, and the automatic spraying of the grease on the slide rail of the device can be realized without the need for manual operation by the staff, thereby reducing the labor intensity of the staff and increasing the convenience of use of the device. By brushing the slide rail above the column with a cleaning brush, the grease applied to the slide rail on the column can be made more uniform, thereby increasing the functional use effect of the device.

[0018] When the device is not in use, the staff can automatically clean the dust on the device by replacing the brush head on the cleaning brush and combining the first connecting member with the moving method on the device, thereby increasing the convenience of using the device;

[0019] After the device has finished processing the workpiece, the cleaning brush on the rotating block rotates to a vertical downward use state, and the vacuum cleaner is started, so that the cleaning brush can brush the metal debris on the upper surface of the workpiece while contacting the upper surface of the workpiece, and the vacuum cleaner can suck out the metal debris, thereby completing the cleaning of the metal debris on the surface of the processed workpiece, making it convenient for the staff to take out the workpiece, and increasing the convenience of using the device;

[0020] After the workpiece is taken out, the suction port of the vacuum cleaner is vertically downward, and the first connecting member is moved on the second fixed column and the second fixed column is moved horizontally on the lifting rod, so that the first connecting member can be moved on the upper surface of the base, and the metal debris remaining on the base can be sucked out. In the process of cleaning the metal debris with the vacuum cleaner, the cleaning brush can be used to brush the upper surface of the base, so that the metal debris in the gap of the base can be brushed out, which is convenient for the vacuum cleaner to suck out the metal debris, thereby increasing the functional stability of the device.

[0021] After the workpiece is installed at the preset position on the base, the laser sensor rotates to the direction facing the side of the beam. Combined with the movement of the lifting rod, the second fixed rod and the first connecting piece, the laser sensor can detect the placement position of the workpiece on the base. Through this operation method, the installation position of the workpiece can be accurately detected before the device processes the workpiece, thereby preventing deviations in the placement position of the workpiece, affecting the processing quality of the workpiece, and increasing the functional stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the installation structure of the base, columns, beams, support plates and square rams of the present invention;

[0024] Figure 3 It is a schematic diagram of the installation structure of the first fixing column, the lifting rod and the second fixing column of the present invention;

[0025] Figure 4 It is a schematic diagram of the installation structure of the electric telescopic rod of the present invention;

[0026] Figure 5 It is a schematic diagram of the installation structure of the fourth rotating electrical machine of the present invention;

[0027] Figure 6 This is a schematic diagram of the installation structure of the first electric slider of the present invention;

[0028] Figure 7 It is a schematic diagram of the installation structure of the first connecting member and the vacuum cleaner of the present invention;

[0029] Figure 8 It is a schematic diagram of the installation structure of the first connecting member and the rotating block of the present invention;

[0030] Fig. 9 This is a schematic diagram of the installation structure of the cleaning brush of the present invention;

[0031] Fig.10 This is a schematic diagram of the installation structure of the filling nozzle of the present invention;

[0032] Fig.11 It is a schematic diagram of the flip plate structure of the present invention.

[0033] In the figure: 1, base; 2, column; 3, crossbeam; 4, support plate; 5, square slide; 6, connecting bottom rod; 7, first fixed column; 8, lifting rod; 9, second fixed column; 10, first slot; 11, first threaded rod; 12, first rotating motor; 13, connecting block; 14, second rotating motor; 15, first connecting piece; 16, rotating block; 17, third rotating motor; 18, vacuum cleaner; 19, electric telescopic rod; 20, sliding block; 21, the first Four rotating motors; 22, first slide; 23, first electric slider; 24, second connecting piece; 25, second slot; 26, cleaning brush; 27, lifting slide; 28, lifting electric slider; 29, third slot; 30, filling pump; 31, grease storage box; 32, electric extension rod; 33, filling nozzle; 34, rotating shaft; 35, flip plate; 36, opening slot; 37, first slide; 38, first electric slider; 39, laser sensor. DETAILED DESCRIPTION

[0034] 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.

[0035] Reference Figure 1-11 A numerical control machine tool includes a base 1, columns 2 are installed at both ends of the top of the base 1, a crossbeam 3 is arranged above the top of the base 1, the bottom of the crossbeam 3 is connected to the top of the column 2, the top of the crossbeam 3 is connected to a support plate 4, a square ram 5 is arranged on the support plate 4, a lifting rod 8 is movably arranged on one side of the base 1, a second fixed column 9 is movably installed on the lifting rod 8, a first connecting member 15 is movably installed on the second fixed column 9, and an auxiliary mechanism is arranged on the first connecting member 15. The base 1, the column 2, the crossbeam 3, the support plate 4 and the square ram 5 together constitute the existing machine tool processing center. By driving the first connecting member 15 to move by the lifting rod 8 and the second fixed column 9, the auxiliary mechanism on the first connecting member 15 can complete the automatic lubrication of the device track and the cleaning of metal debris, etc., which increases the convenience of using the device.

[0036] As a technical optimization solution of the present invention, both ends of the lifting rod 8 near the base 1 are movably connected to the first fixing column 7, and the bottom of the first fixing column 7 away from the lifting rod 8 is movably connected to the connecting bottom rod 6, and the end of the connecting bottom rod 6 facing the base 1 is connected to the base 1. By moving the lifting rod 8 on the first fixing column 7, the height position of the lifting rod 8 can be changed according to the use requirements.

[0037] As a technical optimization solution of the present invention, an electric telescopic rod 19 is embedded and installed at one end of the connecting bottom rod 6 facing the first fixed column 7, and the telescopic end of the electric telescopic rod 19 faces the first fixed column 7, and the telescopic end of the electric telescopic rod 19 is connected to the first fixed column 7. The electric telescopic rod 19 drives the lifting rod 8 to move away from the base 1 and moves the lifting rod 8 to a preset position. At this time, the device will not interfere with the rotation of the second fixed column 9, thereby increasing the functional operation stability of the device.

[0038] As a technical optimization solution of the present invention, a second slide groove 37 is provided on the side of the first fixed column 7 facing the lifting rod 8, and a second electric slider 38 is installed on the side of the lifting rod 8 close to the second slide groove 37. The second electric slider 38 is slidably installed inside the second slide groove 37. By sliding the second electric slider 38 in the second slide groove 37, the lifting rod 8 can be automatically raised and lowered on the first fixed column 7.

[0039] As a technical optimization solution of the present invention, a first slot 10 is provided on the side of the lifting rod 8 away from the first fixed column 7, a first threaded rod 11 is rotatably installed inside the first slot 10, a first rotary motor 12 is installed at one end of the lifting rod 8, the output end of the first rotary motor 12 movably penetrates the end wall of the lifting rod 8 and is connected to the first threaded rod 11, a sliding block 20 is slidably installed inside the first slot 10, the first threaded rod 11 is threadedly penetrated through the sliding block 20, a connecting block 13 is movably connected to the bottom of the second fixed column 9, and the connecting block 13 is connected to the sliding block 20 facing the side of the lifting rod 8. By driving the first threaded rod 11 to rotate by the first rotary motor 12, the sliding block 20 can slide inside the first slot 10, so that the second fixed column 9 can move laterally on the lifting rod 8.

[0040] As a technical optimization solution of the present invention, a fourth rotary motor 21 is embedded and installed on the top of the connection block 13, a second connection member 24 is installed on the output end of the fourth rotary motor 21, a second fixed column 9 is rotatably installed inside the second connection member 24 toward one end of the second connection member 24, a first rotary motor 14 is installed on one side of the first connection member 24, and the output end of the first rotary motor 14 is movably connected to the first fixed column 9 by passing through the side wall of the first connection member 24. By driving the second rotary motor 14 to rotate the second fixed column 9, the second fixed column 9 can be switched to different states when in use and when not in use, so that the second fixed column 9 will not affect the normal operation of the machine tool and the normal loading and unloading of the workpiece when not in use, and by driving the second connection member 24 to rotate the fourth rotary motor 21, the direction of the first connection member 15 can be rotated, and the normal use of the functions on the first connection member 15 and the normal maintenance of the equipment installed on the first connection member 15 by the staff can be ensured.

[0041] As a technical optimization solution of the present invention, a first slide groove 22 is provided on a side of the second fixing column 9 away from the cross beam 3, and a first electric slider 23 is installed on a side of the first connecting member 15 close to the second fixing column 9, and the first electric slider 23 is slidably installed inside the first slide groove 22. By sliding the first electric slider 23 in the first slide groove 22, the first connecting member 15 can move freely on the second fixing column 9.

[0042] As a technical optimization solution of the present invention, the auxiliary mechanism includes a rotating block 16 and a vacuum cleaner 18. The rotating block 16 is rotatably installed inside the first connecting member 15. A third rotating motor 17 is installed on the top of the first connecting member 15. The output end of the third rotating motor 17 movably penetrates the end wall of the first connecting member 15 and is connected to the rotating block 16. The vacuum cleaner 18 is installed on both sides of the first connecting member 15. By driving the rotating block 16 to rotate by the third rotating motor 17, the functions on the rotating block 16 can be freely switched according to different usage scenarios.

[0043] As a technical optimization scheme of the present invention, a third slot 29 is provided on the side of the rotating block 16 away from the second fixed column 9, and a filling pump 30 and a grease storage box 31 are respectively installed on both sides of the bottom end of the inner wall of the third slot 29, and an electric extension rod 32 is installed in the middle of the bottom end of the inner wall of the third slot 29, and the extended end of the electric extension rod 32 is away from the bottom end of the inner wall of the third slot 29, and a filling nozzle 33 is installed on the extended end of the electric extension rod 32. A flip plate 35 is provided inside the third slot 29 on the side away from the electric extension rod 32, and an open slot 36 is penetrated through the flip plate 35 at a position close to the filling nozzle 33, and the filling nozzle 33 can pass through the open slot 36, and a rotating shaft 34 is embedded and installed on the top and bottom side walls of one side of the flip plate 35, and the end of the rotating shaft 34 away from the flip plate 35 is connected to the inner wall of the first slot 29. Start the filling pump 30, and the grease in the grease storage box 31 will be sprayed outward through the filling nozzle 33. Combined with the movement of the first connecting piece 15, the grease can be sprayed on the slide rail above the column 2. The electric extension rod 32 drives the filling nozzle 33 to extend, so that the filling nozzle 33 can change the filling distance by itself, thereby increasing the filling effect of the filling nozzle 33. The rotating shaft 34 can drive the flip plate 35 to rotate. By opening the flip plate 35, it is convenient for the staff to add grease to the inside of the grease storage box 31.

[0044] As a technical optimization solution of the present invention, the rotating block 16 is provided with a second slot 25 on the side away from the third slot 29, a cleaning brush 26 is provided inside the second slot 25, and lifting slots 27 are provided on both inner walls of the second slot 25. The cleaning brush 26 is provided with a lifting electric slider 28 on the side close to the lifting slot 27, and the lifting electric slider 28 is slidably installed inside the lifting slot 27. The rotating block 16 is embedded with a laser sensor 39 on the side adjacent to the second slot 25. By sliding the lifting electric slider 28 in the lifting slot 27, the cleaning brush 26 can be moved out of the second slot 25, and the moving out position can be changed automatically according to the use requirements, which increases the convenience of use of the device. The laser sensor 39 can detect the placement position of the workpiece on the base 1. Through this operation mode, the installation position of the workpiece can be accurately detected before the device processes the workpiece, so as to prevent the deviation of the placement position of the workpiece, which affects the processing quality of the workpiece, and increases the functional stability of the device.

[0045] When the present invention is in use, the base 1, column 2, beam 3, support plate 4 and square slide 5 used in the device are all existing mature technologies, and together constitute an existing machine tool processing center, so they will not be elaborated on in detail. The electrical equipment used in the device is powered by a power supply connected to the power supply through a wire, and the electrical equipment in the device is controlled by setting a control system in the device. The vacuum cleaner 18, filling pump 30, grease storage box 31, filling nozzle 33 and laser sensor 39 used in the device are all existing mature technologies, so they will not be elaborated on in detail. The input end of the filling pump 30 is connected to the interior of the grease storage box 31 through a conduit, and the output end of the filling pump 30 is connected to the filling nozzle 33 through a conduit.

[0046] When the device is in use, after the workpiece is installed at a preset position on the base 1, the fourth rotating motor 21 drives the second fixed column 9 to rotate, so that the rotating block 16 rotates to the direction toward the side of the beam 3, and then the third rotating motor 17 drives the rotating block 16 to rotate, so that the laser sensor 39 rotates to the direction toward the side of the beam 3, and then the first electric slider 23 slides in the first slide groove 22, so that the first connecting member 15 can be moved to a preset height for use according to usage requirements, and then the first rotating motor 12 drives the first threaded rod 11 to rotate, so that the second fixed column 9 performs a transverse movement on the lifting rod 8, so that the laser sensor 39 can detect the placement position of the workpiece on the base 1. Through this operation method, the installation position of the workpiece can be accurately detected before the device processes the workpiece, so as to prevent the placement position of the workpiece from deviating, affecting the processing quality of the workpiece, and increasing the functional stability of the device.

[0047] After the device finishes processing the workpiece, the lifting rod 8 rises to a preset height position on the first fixed column 7, and the lifting rod 8 is driven by the electric telescopic rod 19 to move away from the base 1 and move to the preset position, and then the second fixed column 9 is driven by the second rotary motor 14 to rotate toward the base 1 until the second fixed column 9 rotates to a horizontal use state. At this time, the second fixed column 9 is driven by the fourth rotary motor 21 to rotate, so that the first connecting member 15 moves to a vertical downward use state, and then the rotating block 16 is driven by the third rotary motor 17 to rotate, so that the cleaning brush 26 on the rotating block 16 rotates to a vertical downward use state, and the lifting electric slider 28 is in the lifting slide 27. The cleaning brush 26 slides out of the second slot 25, and then the lifting rod 8 and the second fixed column 9 move in combination with the movement of the first connecting member 15 on the second fixed column 9. During this period, the vacuum cleaner 18 is started. Through this operation mode, the cleaning brush 26 can brush the metal debris on the upper surface of the workpiece while contacting the upper surface of the workpiece, and the vacuum cleaner 18 can suck out the metal debris, thereby completing the cleaning of the metal debris on the surface of the processed workpiece, making it convenient for the staff to take out the workpiece and increasing the convenience of use of the device. After the processing is completed, the second fixed column 9 performs a reset movement away from the base 1, and the second fixed column 9 moves to one side of the lifting rod 8. At this time, the lifting rod 8 will not affect the removal of the workpiece on the base 1.

[0048] After the workpiece is taken out, the second electric slider 38 slides in the second slide groove 37, so that the lifting rod 8 is lifted and lowered on the first fixed column 7 according to the use requirements, and then the second fixed column 9 is driven by the fourth rotary motor 21 to rotate, so that the first connecting member 15 moves to a vertical downward use state. At this time, the suction port of the vacuum cleaner 18 is vertically downward. Combined with the movement of the first connecting member 15 on the first fixed column 9 and the lateral movement of the first fixed column 9 on the lifting rod 8, the first connecting member 15 can be moved to the upper surface position of the base 1. Turning on the vacuum cleaner 18 can suck out the metal debris remaining on the base 1. In the process of the vacuum cleaner 18 cleaning the metal debris, the cleaning brush 26 brushes the upper surface of the base 1, so that the metal debris in the gap of the base 1 can be brushed, which makes it convenient for the vacuum cleaner 18 to suck out the metal debris, thereby increasing the functional stability of the device.

[0049] When the device needs maintenance after use, the crossbeam 3 moves away from the second fixing column 9 on the column 2. After the crossbeam 3 moves to the preset position, the lifting rod 8 moves upward to the preset position, and the second fixing column 9 rotates to a horizontal use state. At this time, the second fixing column 9 is located above the base 1, the first connecting member 15 is vertically downward, and the rotating block 16 is rotated so that the filling nozzle 33 rotates to a downward use state, and then the first connecting member 15 moves to the position of the slide rail above the column 2, and the filling pump 30 is started. The grease in the grease storage box 31 will be sprayed outward through the filling nozzle 33. Combined with the movement of the first connecting member 15, the grease can be sprayed on the column. On the slide rail above the column 2, the cleaning brush 26 is then used to brush the slide rail above the column 2, so that the grease applied to the slide rail on the column 2 can be more evenly applied, thereby increasing the functional use effect of the device. The above operation method is also applicable when the filling nozzle 33 moves to the slide rail above the beam 3. Through this operation method, the automatic application of grease to the slide rails of the column 2 and the beam 3 can be completed. At the same time, the cleaning brush 26 can make the grease application more even, thereby increasing the convenience of use of the device. Before using the cleaning brush 26 to evenly apply the grease, the staff can replace the brush head that is more suitable for applying the grease in advance. After use, the staff can replace the cleaning brush 26.

[0050] When the device is not in use, the staff can automatically clean the dust on the device by replacing the brush head on the cleaning brush 26 and moving the first connecting member 15 on the device, thereby increasing the convenience of using the device.

[0051] When the device is not in use, the first connecting member 15 moves to Figure 1 In the use position shown, the rotation of the rotating block 16 can facilitate the staff to clean and replace the cleaning brush 26, and the opening of the flip plate 35 can facilitate the staff to add grease to the interior of the grease storage box 31.

[0052] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 numerically controlled machine tool, comprising a base (1), characterized in that: The top ends of the base (1) are both provided with upright posts (2); a crossbeam (3) is provided above the top of the base (1); the bottom of the crossbeam (3) is connected to the top of the upright post (2); the top of the crossbeam (3) is connected to a support plate (4); a square ram (5) is provided on the support plate (4); a lifting rod (8) is movably provided on one side of the base (1); a first fixed post (9) is movably provided on the lifting rod (8); a first connecting member (15) is movably provided on the second fixed post (9); an auxiliary mechanism is provided on the first connecting member (15).

2. A CNC machine tool according to claim 1, characterized in that: The lifting rod (8) is movably connected to a first fixing column (7) at both ends of the side close to the base (1), and the bottom of the first fixing column (7) away from the lifting rod (8) is movably connected to a connecting bottom rod (6), and the end of the connecting bottom rod (6) facing the base (1) is connected to the base (1).

3. A CNC machine tool according to claim 2, characterized in that: An electric telescopic rod (19) is embedded and installed at one end of the connecting bottom rod (6) facing the first fixed column (7), and the telescopic end of the electric telescopic rod (19) faces the first fixed column (7), and the telescopic end of the electric telescopic rod (19) is connected to the first fixed column (7).

4. A CNC machine tool according to claim 2, characterized in that: A second slide groove (37) is provided on the side of the first fixed column (7) facing the lifting rod (8), and a second electric slider (38) is installed on the side of the lifting rod (8) close to the second slide groove (37). The second electric slider (38) is slidably installed inside the second slide groove (37).

5. A CNC machine tool according to claim 1, characterized in that: A first slot (10) is provided on a side of the lifting rod (8) away from the first fixed column (7); a first threaded rod (11) is rotatably installed inside the first slot (10); a first rotating motor (12) is installed at one end of the lifting rod (8); an output end of the first rotating motor (12) movably penetrates the end wall of the lifting rod (8) and is connected to the first threaded rod (11); a sliding block (20) is slidably installed inside the first slot (10); the first threaded rod (11) is threadedly penetrated through the sliding block (20); a connecting block (13) is movably connected to the bottom of the second fixed column (9); and the connecting block (13) is connected to the sliding block (20) on the side facing the lifting rod (8).

6. A CNC machine tool according to claim 5, characterized in that: A fourth rotating motor (21) is embedded and installed on the top of the connecting block (13); a second connecting member (24) is installed on the output end of the fourth rotating motor (21); a second fixing column (9) is rotatably installed inside the second connecting member (24) toward one end of the second connecting member (24); a second rotating motor (14) is installed on one side of the second connecting member (24); and the output end of the second rotating motor (14) movably passes through the side wall of the second connecting member (24) and is connected to the second fixing column (9).

7. A CNC machine tool according to claim 1, characterized in that: A first slide groove (22) is provided on a side of the second fixed column (9) away from the cross beam (3), and a first electric slider (23) is installed on a side of the first connecting member (15) close to the second fixed column (9), and the first electric slider (23) is slidably installed inside the first slide groove (22).

8. A CNC machine tool according to claim 1, characterized in that: The auxiliary mechanism comprises a rotating block (16) and a dust collector (18); the rotating block (16) is rotatably mounted inside the first connecting member (15); a third rotating motor (17) is mounted on the top of the first connecting member (15); an output end of the third rotating motor (17) movably passes through the end wall of the first connecting member (15) and is connected to the rotating block (16); and dust collectors (18) are mounted on both sides of the first connecting member (15).

9. A CNC machine tool according to claim 8, characterized in that: A third slot (29) is provided on a side of the rotating block (16) away from the second fixed column (9); a filling pump (30) and a grease storage box (31) are respectively installed on both sides of the inner wall bottom end of the third slot (29); an electric extension rod (32) is installed in the middle of the inner wall bottom end of the third slot (29); an extension end of the electric extension rod (32) is away from the inner wall bottom end of the third slot (29); and a filling nozzle (33) is installed on the extension end of the electric extension rod (32) A flip plate (35) is provided inside the third slot (29) at a side away from the electric extension rod (32); an opening slot (36) is provided through the flip plate (35) at a position close to the filling nozzle (33); the filling nozzle (33) can pass through the opening slot (36); a rotating shaft (34) is embedded and installed on the top and bottom side walls of one side of the flip plate (35); and one end of the rotating shaft (34) away from the flip plate (35) is connected to the inner wall of the third slot (29).

10. A CNC machine tool according to claim 8, characterized in that: The rotating block (16) is provided with a second slot (25) on a side away from the third slot (29), a cleaning brush (26) is provided inside the second slot (25), lifting slots (27) are provided on both inner walls of the second slot (25), a lifting electric slider (28) is installed on a side of the cleaning brush (26) close to the lifting slot (27), the lifting electric slider (28) is slidably installed inside the lifting slot (27), and a laser sensor (39) is embedded and installed on a side of the rotating block (16) adjacent to the second slot (25).

Images