Horizontal adjusting device for precise numerical control machine tool base

Abstract

The invention relates to the technical field of precision numerical control machine tools, and discloses a precision numerical control machine tool base horizontal adjusting device which is installed between a base and a truss and comprises a main adjusting unit, an auxiliary adjusting unit and an adjusting base. The main adjusting unit comprises a special-shaped wheel and a supporting plate; the auxiliary adjusting unit comprises a sliding mechanism, the sliding mechanism comprises an adjusting rod, the adjusting rod is rotationally connected with the adjusting seat, the adjusting rod is provided with an auxiliary adjusting mechanism, the auxiliary adjusting mechanism comprises a supporting assembly and a self-locking assembly, the supporting assembly is slidably connected to the adjusting rod, and the self-locking assembly is arranged on the supporting assembly. The supporting assembly is used for transmitting supporting force of the main adjusting unit and the auxiliary adjusting mechanism. By arranging the special-shaped wheels, the adjusting rods and the adjusting blocks, horizontal adjustment of the truss is conducted, adjustment of the truss with different precisions is achieved through different moving distances of the adjusting blocks at different positions of the adjusting rods, and the adjusting effect is better.

Description

Technical Field

[0001] The present invention belongs to the technical field of precision CNC machine tools, and specifically relates to a horizontal adjustment device for the bed of a precision CNC machine tool. Background Art

[0002] A CNC machining center is a CNC machine tool with a tool magazine and the ability to automatically change tools, capable of performing various machining operations on workpieces within a certain range.

[0003] The patent application with the publication number CN110774013A discloses a CNC machine tool base with a horizontal adjustment function. The CNC machine tool is installed on the top of a cross plate through a fixing plate. The arc plate on the top of the cross plate is arranged inside the groove on the top of the slider. A rotating shaft is arranged inside the base. The cross plate is supported by the base and the slider. When adjusting the angle of the CNC machine tool, the output end of the electric push rod can drive the slider to slide inside the chute. During the sliding process of the slider, the arc plate will be squeezed, thereby driving the arc plate to move upward. On the other side, the rotating shaft is rotatably connected to the base. Therefore, the cross plate will rotate around the rotating shaft, so as to adjust the angle of the cross plate. The level is passed through to determine whether the cross plate is horizontal, so that the CNC machine tool is in a horizontal position. Then, the cross plate is locked by rotating the second screw to ensure the accuracy of later processing.

[0004] However, this technical solution still has at least the following defects: When the CNC machine tool base in this solution is horizontally adjusted, the accuracy cannot be adjusted according to requirements, and the adjustment effect is relatively poor. In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a horizontal adjustment device for the bed of a precision CNC machine tool. The horizontal adjustment of the truss is achieved by setting a special-shaped wheel, an adjustment rod, and an adjustment block. Different distances are moved when the adjustment block is at different positions on the adjustment rod, so as to achieve different precision adjustments of the truss, making the adjustment effect better. Structures such as a fixed sleeve and an inner turntable are set. When the adjustment rod rotates, the fixed sleeve and the inner turntable remain relatively movable, so that the inner turntable rotates and adapts to the changes of the adjustment rod and the connecting rod. When the adjustment block moves, the fixed sleeve and the inner turntable remain relatively stationary, so that the mounting plate drives the connecting rod to move through the inner turntable.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] A horizontal adjustment device for the bed of a precision CNC machine tool, installed between the bed and the truss, includes a main adjustment unit and a secondary adjustment unit, and also includes an adjustment seat;

[0008] The main adjustment unit includes a special-shaped wheel and a support plate. The main adjustment unit changes the distance between the bed and the truss through the change of the contact position between the special-shaped wheel and the support plate;

[0009] The secondary adjustment unit includes a sliding mechanism, the sliding mechanism includes an adjustment rod, the adjustment rod is rotatably connected to an adjustment seat, a secondary adjustment mechanism is provided on the adjustment rod, the secondary adjustment mechanism includes a support assembly and a self-locking assembly, the support assembly is slidably connected to the adjustment rod, the support assembly is used to transmit the supporting force between the primary adjustment unit and the secondary adjustment mechanism, when the self-locking assembly is unlocked, the support assembly slides on the adjustment rod to change the displacement amplitude of the secondary adjustment mechanism when the primary adjustment unit operates.

[0010] As a preferred embodiment of the present invention, the primary adjustment unit further includes a driving mechanism, the driving mechanism includes a first power source, the first power source is fixedly installed on the bed base, a transmission shaft is fixedly installed at the output end of the first power source, a special-shaped wheel is slidably sleeved on the transmission shaft, the primary adjustment unit further includes a mounting seat, the mounting seat is fixedly installed at the bottom of the adjustment seat, and the special-shaped wheel is rotatably connected to one side of the mounting seat.

[0011] As a preferred embodiment of the present invention, the primary adjustment unit includes a lifting mechanism, the lifting mechanism includes a support pile, the support pile is fixedly installed on the top of the support plate, the support pile is slidably installed on the adjustment seat, a support rod is fixedly installed at the top of the support pile, support blocks are rotatably installed at both ends of the support rod, and the adjustment rod is erected on the support blocks.

[0012] As a preferred embodiment of the present invention, the support assembly includes an adjustment block, a connecting frame is rotatably installed at the top of the adjustment block, rollers are rotatably installed at both ends of the connecting frame, a connecting rod is rotatably installed on one side of the adjustment block, and a pressure sensor is built in the adjustment block.

[0013] As a preferred embodiment of the present invention, the secondary adjustment mechanism further includes a mounting assembly, the mounting assembly includes a mounting plate, a power assembly is provided at the bottom of the mounting plate, the power assembly is used to control the mounting assembly and the self-locking assembly, the power assembly includes a second power source arranged in parallel, the second power source is fixedly connected to the adjustment seat, a lead screw is fixedly installed at the output end of the second power source, a push block is movably installed on the lead screw, and the power assembly drives the push block to move to make the mounting assembly move.

[0014] As a preferred embodiment of the present invention, the self-locking assembly includes a fixed sleeve, the fixed sleeve is fixedly connected to the mounting plate, an inner turntable is movably installed in the fixed sleeve, an activity groove is provided on the inner turntable, the connecting rod is movably connected in the activity groove, and the diameter of the connecting rod is adapted to the width of the activity groove, and when the connecting rod moves along with the adjustment rod, the inner turntable is driven to rotate through the activity groove.

[0015] As a preferred embodiment of the present invention, the self-locking assembly further includes a slot and a plug board. The slot is opened on the fixed sleeve, and the plug board is movably inserted into the slot. The self-locking assembly further includes a connecting block, an opening groove is opened on the connecting block, a pressing rod is arranged at the top of the connecting block, ejector rods are fixedly installed at both ends of the pressing rod, a push rod is fixedly installed at the top of the ejector rod, a slope is arranged on one side of the plug board, and the push rod is aligned with the slope.

[0016] As a preferred embodiment of the present invention, the self-locking assembly further includes a reset module. The reset module includes a connecting piece, the connecting piece movably penetrates through the mounting plate, one end of the connecting piece is fixedly connected with the ejector rod, a telescopic rod is fixedly installed at the top of the other end of the connecting piece, the top of the telescopic rod is fixedly connected with the mounting plate, and a spring is movably sleeved on the telescopic rod.

[0017] As a preferred embodiment of the present invention, the self-locking assembly further includes a gear rotatably installed at the bottom of the opening groove. A guiding block is fixedly installed at the top of the gear, the guiding block is aligned with the position of the pressing rod, a rack is fixedly installed on one side of the pushing block, and the rack meshes with the gear.

[0018] As a preferred embodiment of the present invention, a partition board is arranged at the top of the adjusting seat. The partition board is fixedly installed at the bottom of the truss, a limiting pile is fixedly installed at the bottom of the partition board, the limiting pile is movably inserted into the top of the adjusting seat, and an electromagnet is installed at the position of the adjusting seat side opposite to the limiting pile.

[0019] The present invention has the following beneficial effects compared with the prior art:

[0020] The present invention adjusts the level of the truss by setting a special-shaped wheel, an adjusting rod and an adjusting block. By adjusting the different distances moved by the adjusting block at different positions of the adjusting rod, the truss can be adjusted with different precisions, making the adjustment effect better.

[0021] The present invention sets structures such as a fixed sleeve and an inner turntable. When the adjusting rod rotates, the fixed sleeve and the inner turntable remain relatively movable, so that the inner turntable rotates and adapts to the changes of the adjusting rod and the connecting rod. When the adjusting block moves, the fixed sleeve and the inner turntable remain relatively stationary, so that the mounting plate drives the connecting rod to move through the inner turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a horizontal adjustment device for the bed base of a precision CNC machine tool according to the present invention;

[0023] Figure 2 It is a schematic diagram of the structure at the adjusting seat according to the present invention;

[0024] Figure 3 It is a schematic diagram of the structure at the special-shaped wheel according to the present invention;

[0025] Figure 4 Schematic diagram of the bottom structure of the adjustment seat of the present invention;

[0026] Figure 5 Schematic diagram of the structure at the limit pile of the present invention;

[0027] Figure 6 Schematic diagram of the separated state of the partition board and the adjustment seat of the present invention;

[0028] Figure 7 Schematic diagram of the structure at the support rod of the present invention;

[0029] Figure 8 Schematic diagram of the internal structure of the adjustment seat of the present invention;

[0030] Figure 9 Schematic diagram of the structure at the adjustment block of the present invention;

[0031] Figure 10 Schematic diagram of the structure at the roller of the present invention;

[0032] Figure 11 Schematic diagram of the structure at the fixed sleeve of the present invention;

[0033] Figure 12 Schematic diagram of the structure at the inner turntable of the present invention;

[0034] Figure 13 Schematic diagram of the structure at the push block of the present invention;

[0035] Figure 14 Schematic diagram of the structure at the gear of the present invention.

[0036] Reference numerals:

[0037] 100, bed base; 101, truss;

[0038] 200, adjustment seat; 201, mounting seat; 202, first power source; 203, transmission shaft; 204, special-shaped wheel; 205, support plate; 206, support pile; 207, support rod; 208, support block;

[0039] 300, adjustment rod; 301, adjustment block; 302, pressure sensor; 303, connecting frame; 304, roller; 305, connecting rod;

[0040] 400. Mounting plate; 401. Fixed sleeve; 402. Inner turntable; 403. Movable groove; 404. Slot; 405. Plugboard; 406. Push rod; 407. Thrust rod; 408. Pressure rod; 409. Connecting block; 410. Opening groove; 411. Push block; 412. Rack; 413. Gear; 414. Guide block; 415. Connecting piece; 416. Spring; 417. Telescopic rod; 418. Lead screw; 419. Second power source

[0041] 500. Partition board; 501. Limit pile; 502. Electromagnet Detailed implementation manners

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention

[0043] Embodiment 1

[0044] As Figures 1 to 14 shown, a horizontal adjustment device for a precision CNC machine tool bed is installed between the bed 100 and the truss 101, and includes a main adjustment unit and a secondary adjustment unit, and further includes an adjustment base 200

[0045] The main adjustment unit includes a special-shaped wheel 204 and a support plate 205. The main adjustment unit changes the distance between the bed 100 and the truss 101 by changing the contact position between the special-shaped wheel 204 and the support plate 205

[0046] The secondary adjustment unit includes a sliding mechanism. The sliding mechanism includes an adjustment rod 300. The adjustment rod 300 is rotatably connected to the adjustment base 200. A secondary adjustment mechanism is provided on the adjustment rod 300. The secondary adjustment mechanism includes a support assembly and a self-locking assembly. The support assembly is slidably connected to the adjustment rod 300. The support assembly is used to transmit the supporting force between the main adjustment unit and the secondary adjustment mechanism. When the self-locking assembly is unlocked, the support assembly slides on the adjustment rod 300 to change the displacement amplitude of the secondary adjustment mechanism when the main adjustment unit acts

[0047] As Figures 1 to 4 shown, in the specific implementation manner, the main adjustment unit further includes a driving mechanism. The driving mechanism includes a first power source 202. The first power source 202 is fixedly installed on the bed 100. A transmission shaft 203 is fixedly installed at the output end of the first power source 202. The special-shaped wheel 204 is slidably sleeved on the transmission shaft 203. The main adjustment unit further includes a mounting base 201. The mounting base 201 is fixedly installed at the bottom of the adjustment base 200. The special-shaped wheel 204 is rotatably connected to one side of the mounting base 201. In this setting, the first power source 202 adopts a servo motor, which can perform angle control. The special-shaped wheel 204 and the transmission shaft 203 move coaxially, so that the special-shaped wheel 204 rotates following the transmission shaft 203

[0048] As Figure 4 , Figure 7 shown, further, the main adjustment unit includes a lifting mechanism. The lifting mechanism includes a support pile 206. The support pile 206 is fixedly installed on the top of the support plate 205. The support pile 206 is slidably installed on the adjustment seat 200. A support rod 207 is fixedly installed on the top of the support pile 206. Support blocks 208 are rotatably installed at both ends of the support rod 207. The adjustment rod 300 is erected on the support blocks 208. In this setting, when the adjustment rod 300 rotates, its angle changes. The rotational connection between the support block 208 and the support rod 207 enables the support block 208 to closely adhere to the adjustment rod 300.

[0049] As Figures 8 to 10 shown, further, the support assembly includes an adjustment block 301. A connecting frame 303 is rotatably installed on the top of the adjustment block 301. Rollers 304 are rotatably installed at both ends of the connecting frame 303. A connecting rod 305 is rotatably installed on one side of the adjustment block 301. A pressure sensor 302 is built into the adjustment block 301. In this setting, the pressure sensor 302 is used to obtain the pressure of the truss 101 on the rollers 304, and then judge the force state between the rollers 304 and the truss 101.

[0050] Embodiment 2

[0051] As Figure 8 , Figure 9 , Figure 13 shown, in the specific implementation manner, the secondary adjustment mechanism further includes an installation assembly. The installation assembly includes an installation plate 400. A power assembly is arranged at the bottom of the installation plate 400. The power assembly is used to control the installation assembly and the self-locking assembly. The power assembly includes a second power source 419 arranged in parallel. The second power source 419 is fixedly connected to the adjustment seat 200. A lead screw 418 is fixedly installed at the output end of the second power source 419. A push block 411 is movably installed on the lead screw 418. The power assembly drives the push block 411 to move so as to move the installation assembly. In this setting, the second power source 419 adopts a servo motor and can perform angle control. The second power source 419 drives the lead screw 418 to make the push block 411 move.

[0052] As Figure 9 , Figure 11 , Figure 12As shown in the figure, further, the self-locking assembly includes a fixed sleeve 401, the fixed sleeve 401 is fixedly connected to the mounting plate 400, an inner turntable 402 is movably installed in the fixed sleeve 401, an activity groove 403 is formed in the inner turntable 402, the connecting rod 305 is movably connected in the activity groove 403, and the diameter of the connecting rod 305 is adapted to the width of the activity groove 403. When the connecting rod 305 moves following the adjusting rod 300, the inner turntable 402 is driven to rotate through the activity groove 403. In this setting, the inner turntable 402 is a perfect circle. When the connecting rod 305 moves, the connecting rod 305 applies an external force to the activity groove 403 of the inner turntable 402 to drive the inner turntable 402 to rotate.

[0053] As Figures 11 to 13 shown in the figure, further, the self-locking assembly further includes a slot 404 and a plug board 405. The slot 404 is formed in the fixed sleeve 401, the plug board 405 is movably inserted into the slot 404. The self-locking assembly further includes a connecting block 409, an opening groove 410 is formed in the connecting block 409, a pressing rod 408 is arranged at the top of the connecting block 409, ejector rods 407 are fixedly installed at both ends of the pressing rod 408, a push rod 406 is fixedly installed at the top of the ejector rod 407, and a slope is arranged on one side of the plug board 405, and the push rod 406 is aligned with the slope. In this setting, the sides of the plug board 405 and the inner turntable 402 that contact each other are both treated with frosting, so that when the plug board 405 and the inner turntable 402 are pressed against each other, the frictional force can keep the two in a relatively static state.

[0054] As Figures 13 to 14 shown in the figure, further, the self-locking assembly further includes a reset module. The reset module includes a connecting piece 415. The connecting piece 415 movably penetrates through the mounting plate 400. One end of the connecting piece 415 is fixedly connected to the ejector rod 407. A telescopic rod 417 is fixedly installed at the top of the other end of the connecting piece 415. The top of the telescopic rod 417 is fixedly connected to the mounting plate 400, and a spring 416 is movably sleeved on the telescopic rod 417. In this setting, the elastic force of the spring 416 acts on the connecting piece 415, and drives the push rod 406 to descend through the ejector rod 407. The push rod 406 is separated from the plug board 405, and the inner turntable 402 is kept in an active state.

[0055] As Figure 11 、 Figure 13 、 Figure 14As shown, in the specific implementation, the self-locking assembly further includes a gear 413 rotatably installed at the bottom of the opening groove 410. A guide block 414 is fixedly installed at the top of the gear 413. The guide block 414 is aligned with the position of the pressure lever 408. A rack 412 is fixedly installed on one side of the push block 411. The rack 412 meshes with the gear 413. In this setting, when the lead screws 418 on both sides rotate in the same direction, the two push blocks 411 move in the same direction. At this time, the push block 411 makes the mounting plate 400 and the connecting block 409 move through the meshing action of the rack 412 and the gear 413. When the lead screws 418 on both sides rotate in the opposite direction, the two push blocks 411 move in the opposite direction. At this time, the push block 411 drives the gear 413 to rotate through the rack 412 and drives the guide block 414 to rotate. The guide block 414 is provided with raised and sunken positions, and the height of the pressure lever 408 is changed by aligning different positions with the pressure lever 408.

[0056] Embodiment 3

[0057] As Figures 5 to 6 shown, further, a partition plate 500 is provided at the top of the adjusting seat 200. The partition plate 500 is fixedly installed at the bottom of the truss 101. A limiting pile 501 is fixedly installed at the bottom of the partition plate 500. The limiting pile 501 is movably inserted into the top of the adjusting seat 200. An electromagnet 502 is installed at a position on the side of the adjusting seat 200 opposite to the limiting pile 501. In this setting, the magnetic force of the electromagnet 502 acts on the limiting pile 501 to keep the limiting pile 501 stationary, thereby keeping the truss 101 stationary for changing the adjustment accuracy.

[0058] The electromagnet 502 and the pressure sensor 302 can be controlled by a PLC control board. When adjusting, the detected values of the pressure sensors 302 on both sides are approximately equal to the weight of the truss 101. At this time, it is the initial measurement value. When the electromagnet 502 is powered on, the reset adjusting rod 300 resets the reading of the pressure sensor 302. When adjusting again, the reading of the pressure sensor 302 increases. When the reading of the pressure sensor 302 is the same as the initial measurement value, it indicates that the roller 304 bears the weight of the truss 101. At this time, the PLC control board controls the electromagnet 502 to power off, and then the adjustment can continue.

[0059] The implementation principle of a horizontal adjustment device for the bed base of a precision numerical control machine tool in this embodiment is as follows: When working, the first power source 202 is started, and the first power source 202 drives the transmission shaft 203 to rotate, so that the special-shaped wheel 204 rotates. The special-shaped wheel 204 drives the support pile 206 to move by pressing against the support plate 205, and then drives the support rod 207 to move. The support rod 207 drives the adjustment rod 300 to rotate through the support block 208. During the rotation of the adjustment rod 300, the adjustment block 301 is driven to move. The adjustment block 301 drives the partition plate 500 to move up and down through the connecting frame 303 and the roller 304, thereby realizing the leveling of the truss 101.

[0060] When leveling with different degrees of fineness is required, the electromagnet 502 is started, and the electromagnet 502 adsorbs the limit pile 501, so that the partition plate 500 and the truss 101 remain in place. At this time, the first power source 202 is reset to reset the adjustment rod 300. At the same time, the roller 304 is separated from the partition plate 500, so that the reading of the pressure sensor 302 is reset. The second power sources 419 on both sides are started, and the lead screws 418 on both sides are rotated in the same direction, so as to drive the two push blocks 411 to move in the same direction. At this time, the push block 411 drives the mounting plate 400 and the connecting block 409 to move through the meshing of the rack 412 and the gear 413. The mounting plate 400 drives the fixed sleeve 401 to move. At this time, the protruding part of the guide block 414 abuts against the pressure rod 408 and makes the pressure rod 408 move upward. The pressure rod 408 drives the push rod 406 to move upward through the ejector rod 407. The push rod 406 makes the plug board 405 closely adhere to the inner turntable 402 by abutting against the inclined surface of the plug board 405, thereby realizing the fixation of the inner turntable 402 and the fixed sleeve 401. At this time, the fixed sleeve 401 moves and drives the inner turntable 402 to move. The inner turntable 402 drives the connecting rod 305 to move through the movable groove 403, and the connecting rod 305 drives the adjustment block 301 to move, so that the adjustment block 301 is at different positions of the adjustment rod 300.

[0061] After the adjustment is completed, the second power sources 419 on both sides are started again, and the lead screws 418 on both sides are rotated in the reverse direction. At this time, the two push blocks 411 rotate in the reverse direction and drive the gear 413 to rotate through the rack 412. The gear 413 drives the guide block 414 to rotate and aligns the concave part of the guide block 414 with the pressure rod 408. At this time, the elastic force of the spring 416 acts on the connecting member 415 and drives the push rod 406 to descend through the ejector rod 407. The push rod 406 is separated from the plug board 405, and the inner turntable 402 is kept in an active state. At this time, the leveling of the truss 101 can be carried out again.

[0062] When leveling, the rotation of the adjustment rod 300 causes the connecting rod 305 to rotate along an arc centered on the rotation point of the adjustment rod 300. During the rotation, the horizontal displacement of the connecting rod 305 changes, and the movable groove 403 is abutted during the movement, so that the inner turntable 402 rotates.

[0063] Restart the first power source 202 again. At this time, the adjusting rod 300 drives the adjusting block 301, the connecting frame 303 and the roller 304 to rise. When the roller 304 abuts against the partition plate 500, the reading of the pressure sensor 302 increases. When the reading of the pressure sensor 302 increases to half of the weight of the truss 101, the electromagnet 502 is powered off. At this time, the limit pile 501 is unlocked so that the partition plate 500 and the truss 101 move again.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A precision CNC machine tool bed base horizontal adjustment device, installed between the bed base (100) and the truss (101), characterized in that: It comprises a main adjustment unit and a sub-adjustment unit, and also comprises an adjustment seat (200); The main adjustment unit comprises a shaped wheel (204) and a support plate (205), and the main adjustment unit changes the distance between the bed base (100) and the truss (101) by changing the contact position between the shaped wheel (204) and the support plate (205); The auxiliary adjustment unit comprises a sliding mechanism, the sliding mechanism comprises an adjustment rod (300), the adjustment rod (300) is rotatably connected to the adjustment seat (200), the auxiliary adjustment mechanism is arranged on the adjustment rod (300), the auxiliary adjustment mechanism comprises a support component and a self-locking component, the support component is slidably connected to the adjustment rod (300), the support component is used to transmit the support force between the main adjustment unit and the auxiliary adjustment mechanism, and when the self-locking component is unlocked, the support component slides on the adjustment rod (300) to change the displacement amplitude of the auxiliary adjustment mechanism when the main adjustment unit is in motion.

2. A precision CNC machine tool bed level adjustment device according to claim 1, characterized in that: The main adjustment unit further comprises a driving mechanism, the driving mechanism comprising a first power source (202), the first power source (202) being fixedly mounted on the bed base (100), a transmission shaft (203) being fixedly mounted on the output end of the first power source (202), the special-shaped wheel (204) being slidably sleeved on the transmission shaft (203), the main adjustment unit further comprises a mounting seat (201), the mounting seat (201) being fixedly mounted on the bottom of the adjustment seat (200), and the special-shaped wheel (204) being rotatably connected to one side of the mounting seat (201).

3. A precision CNC machine tool bed level adjustment device according to claim 2, characterized in that: The main adjustment unit comprises a lifting mechanism, the lifting mechanism comprising a support pile (206), the support pile (206) being fixedly mounted on the top of a support plate (205), the support pile (206) being slidably mounted on an adjustment seat (200), a support rod (207) being fixedly mounted on the top of the support pile (206), support blocks (208) being rotatably mounted at both ends of the support rod (207), and the adjustment rod (300) being mounted on the support block (208).

4. A precision CNC machine tool bed level adjustment device according to claim 3, characterized in that: The support assembly comprises an adjustment block (301), a connecting frame (303) is rotatably mounted on the top of the adjustment block (301), rollers (304) are rotatably mounted on both ends of the connecting frame (303), a connecting rod (305) is rotatably mounted on one side of the adjustment block (301), and a pressure sensor (302) is built into the adjustment block (301).

5. The device for adjusting the bed level of a precision CNC machine tool according to claim 4, characterized in that: The auxiliary adjustment mechanism also includes a mounting assembly, the mounting assembly includes a mounting plate (400), a power assembly is arranged at the bottom of the mounting plate (400), the power assembly is used to control the mounting assembly and the self-locking assembly, the power assembly includes a second power source (419) arranged in parallel, the second power source (419) is fixedly connected to the adjustment seat (200), a screw rod (418) is fixedly installed at the output end of the second power source (419), a push block (411) is movably installed on the screw rod (418), and the power assembly drives the push block (411) to move so that the mounting assembly moves.

6. A precision CNC machine tool bed level adjustment device according to claim 5, characterized in that: The self-locking assembly comprises a fixing sleeve (401), the fixing sleeve (401) being fixedly connected to the mounting plate (400), an inner rotating disk (402) being movably mounted in the fixing sleeve (401), a movable groove (403) being provided on the inner rotating disk (402), the connecting rod (305) being movably connected in the movable groove (403), and the diameter of the connecting rod (305) being matched to the width of the movable groove (403), and when the connecting rod (305) moves following the adjusting rod (300), the inner rotating disk (402) is driven to rotate through the movable groove (403).

7. A precision CNC machine tool bed level adjustment device according to claim 6, characterized in that: The self-locking component further comprises a slot (404) and an insert plate (405), wherein the slot (404) is provided on the fixing sleeve (401), and the insert plate (405) is movably inserted into the slot (404). The self-locking component further comprises a connecting block (409), wherein an opening slot (410) is provided on the connecting block (409), a pressure rod (408) is provided on the top of the connecting block (409), and push rods (407) are fixedly installed at both ends of the pressure rod (408), and a push rod (406) is fixedly installed on the top of the push rod (407), and an inclined surface is provided on one side of the insert plate (405), and the push rod (406) is aligned with the inclined surface.

8. The device for adjusting the bed level of a precision CNC machine tool according to claim 7, characterized in that: The self-locking component also includes a reset module, which includes a connecting piece (415), the connecting piece (415) movably passes through the mounting plate (400), one end of the connecting piece (415) is fixedly connected to the top rod (407), a telescopic rod (417) is fixedly installed on the top of the other end of the connecting piece (415), the top of the telescopic rod (417) is fixedly connected to the mounting plate (400), and a spring (416) is movably sleeved on the telescopic rod (417).

9. The device for adjusting the bed base of a precision CNC machine tool according to claim 8, characterized in that: The self-locking assembly also includes a gear (413) rotatably mounted at the bottom of the opening slot (410), a guide block (414) fixedly mounted on the top of the gear (413), the guide block (414) being aligned with the position of the pressure rod (408), and a rack (412) fixedly mounted on one side of the push block (411), the rack (412) and the gear (413) being meshed with each other.

10. The device for adjusting the bed base of a precision CNC machine tool according to claim 9, characterized in that: A partition (500) is provided on the top of the adjustment seat (200), the partition (500) is fixedly mounted on the bottom of the truss (101), a limit pile (501) is fixedly mounted on the bottom of the partition (500), the limit pile (501) is movably plugged into the top of the adjustment seat (200), and an electromagnet (502) is installed on the side of the adjustment seat (200) at a position relative to the limit pile (501).

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