CN222058962U

CN222058962U - Numerical control cutting board center

Info

Publication number: CN222058962U
Application number: CN202323472932.XU
Authority: CN
Inventors: 王明春
Original assignee: Suzhou Mingchi Precision Technology Co ltd
Current assignee: Suzhou Mingchi Precision Technology Co ltd
Priority date: 2023-12-20
Filing date: 2023-12-20
Publication date: 2024-11-26
Anticipated expiration: 2033-12-20

Abstract

The utility model relates to the technical field of numerical control equipment, in particular to a numerical control cutting board center which comprises an X-direction feeding mechanism, a Y-direction feeding mechanism, a Z-direction cutting mechanism, a positioning and clamping mechanism and a lathe bed; the X-direction feeding mechanism comprises a driving motor A, a synchronous belt mechanism, a first ball screw mechanism, a linear guide rail mechanism A, a gantry feeding frame, a suction gripper and a plurality of groups of conveying rollers; the Y-direction feeding mechanism comprises a driving motor B, a ball screw mechanism, a linear guide rail mechanism B, a first coupler and a bearing plate; the Z-direction cutting mechanism comprises a driving motor C, a second coupler, a sliding plate and a second ball screw mechanism. The utility model has the advantages of remarkable processing advantages for the plate parts, high processing efficiency, complete compatibility for plates with different thicknesses, and reliable assurance of the section roughness and processing precision of the finished product of the plate parts, thereby being very suitable for occasions with strict requirements on the processing precision and efficiency of the plate parts in daily manufacturing workshops.

Description

Numerical control cutting board center

Technical Field

The utility model relates to the technical field of numerical control equipment, in particular to a numerical control cutting board center.

Background

The numerical control machine tool is mainly used for machining metal and nonmetallic materials, with the rapid development of numerical control technology, the machining precision and the machining efficiency of the numerical control machine tool are improved to a great extent compared with the prior art, and the operation of the numerical control machine tool is gradually simplified and intelligent along with the rapid advance of automatic technology, so that workers are liberated from the work with stronger manual dependency, the work efficiency is improved, the labor is distributed more reasonably, the machining of parts often meets the machining of plate parts, and the common machining mode is numerical control laser cutting and numerical control center machining. The numerical control laser cutting mode has the advantages of higher cutting speed and high efficiency, is particularly suitable for processing steel parts, has low processing precision, and has larger roughness and shape and position errors of the processed section of the plate part, so that the numerical control laser cutting mode is mostly suitable for processing sheet metal parts with low precision requirements, and the laser head is easy to damage during processing aluminum parts. The numerical control center is machined, the machining precision is high, the wire level is guaranteed, and the roughness and the shape and position errors of the section of the plate can be reasonably controlled; however, the processing efficiency is relatively slow, and when a numerical control machine is adopted to process plate parts with relatively simple processing procedures, the plate parts are slightly large and small, and the plate parts can also influence the working hours of other parts during the manufacture, so that the efficient production of a manufacturing workshop is not facilitated.

Disclosure of utility model

The utility model aims to provide a numerical control cutting board center, which solves the problems that in the prior art, when a numerical control machine is adopted to center and process a plurality of plate parts with relatively simple processing procedures, the plate parts are small and large in size, and the plate parts can influence the working hours of other parts during the manufacturing process, so that the efficient production of a manufacturing workshop is not facilitated.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A numerical control cutting board center comprises an X-direction feeding mechanism, a Y-direction feeding mechanism, a Z-direction cutting mechanism, a positioning and clamping mechanism and a lathe bed;

The X-direction feeding mechanism comprises a driving motor A, a synchronous belt mechanism, a first ball screw mechanism, a linear guide rail mechanism A, a gantry feeding frame, an attracting gripper and a plurality of groups of conveying rollers;

the Y-direction feeding mechanism comprises a driving motor B, a ball screw mechanism, a linear guide rail mechanism B, a first coupler and a bearing plate;

The Z-direction cutting mechanism comprises a driving motor C, a second coupler, a sliding plate, a second ball screw mechanism, four groups of linear bearing guide rod mechanisms and a cutting tool bit;

The positioning and clamping mechanism comprises an electromagnetic chuck and an auxiliary pneumatic clamping machine.

Preferably, the driving motor A is fixed on the front middle fixing plate of the lathe bed through a screw, the motor output end of the driving motor A is connected with 2 driving belt wheels, and the driving belt wheels transmit the speed and torque of the motor to driven belt wheels fixedly connected with the shaft end of the first ball screw mechanism through synchronous belts respectively.

Preferably, the first ball screw mechanisms are respectively fixed at the left side and the right side of the front supporting platform of the lathe bed; a linear guide rail mechanism A is also arranged at the side part of each group of first ball screw mechanisms.

Preferably, the footrests of the gantry feeding frame are respectively fixed on the sliding blocks of the left and right groups of linear guide rail mechanisms A; the suction grippers are fixed in the middle of the gantry feeding frame, and a plurality of groups of conveying rollers are further arranged on two sides of the middle of the front supporting platform of the lathe bed.

Preferably, the first screw shaft of the first ball screw mechanism is driven by the synchronous belt mechanism to rotate, and the screw nut of the first screw shaft is fixedly connected with the sliding block of the linear guide rail mechanism A through an adapter.

Preferably, the linear guide rail mechanisms B are respectively fixed on a rear supporting platform of the lathe bed; the bearing plate is fixed on a sliding block on the linear guide rail mechanism B through a screw.

Preferably, the driving motor B is fixed on one side of the lathe bed, and the shaft end of the driving motor B is fixedly connected with a screw shaft of the ball screw mechanism through a first coupler; the transmission nut of the ball screw mechanism is fixed below the bearing plate through a screw.

Preferably, the driving motor C is fixed at the lower bottom of the center of the bearing plate, and the output end of the driving motor C is fixedly connected with a second screw shaft of the second ball screw mechanism through the second coupling; the second screw rod nut is fixedly connected with the middle part of the sliding plate through a screw; the four groups of linear bearing guide rod mechanisms are respectively arranged at four corner positions of the bearing plate.

Preferably, in the linear bearing guide rod mechanism, the guide rod shaft is fixedly connected with the bearing plate, the linear bearing is fixedly connected with the sliding plate, and the linear bearing and the guide rod shaft realize axial sliding fit movement through the inner hole.

Preferably, the cutting tool bit comprises a main driving motor, a speed reducer and a blade; the main driving motor and the torque drive the blade to rotate at high speed through the cooperation of the speed reducer; the cutting tool bit is fixed on the sliding plate through the mounting seat surface of the speed reducer.

Compared with the prior art, the utility model has the beneficial effects that:

1. The numerical control cutting plate center has the advantages of remarkable processing advantages for plate parts, high processing efficiency, complete compatibility for plates with different thicknesses, and reliable guarantee of the section roughness and processing precision of plate part finished products, so that the numerical control cutting plate center is very suitable for occasions with strict requirements on the processing precision and efficiency of the plate parts in daily manufacturing workshops.

2. In the numerical control cutting board center, the X-direction feeding mechanism drives the synchronous belt mechanism through the driving motor A, so that the first ball screw mechanism and the linear guide rail mechanism work cooperatively, and accurate feeding of the board in the X direction is realized. Meanwhile, the attraction gripper utilizes the magnetic attraction principle to firmly adsorb the plate on the gantry feeding frame, so that the feeding stability and accuracy are ensured.

3. In the numerical control cutting board center, the Y-direction feeding mechanism drives the ball screw mechanism and the linear guide rail mechanism through the driving motor B, so that accurate feeding of boards in the Y direction is realized. The first coupling and the bearing plate are matched for use, so that the feeding mechanism is more stable and reliable.

4. In the numerical control cutting board center, the Z-direction cutting mechanism drives the second ball screw mechanism and the linear bearing guide rod mechanism through the driving motor C, so that accurate cutting of the board in the Z direction is realized. The cutting tool bit is an actuating mechanism with a driving function, can rotate at a high speed and improves cutting efficiency. Meanwhile, the auxiliary pneumatic clamping mechanism can prevent the risk of workpiece compaction failure caused by insufficient suction of the electromagnetic chuck in the cutting process, ensures the cutting stability and precision, and has particularly obvious processing advantages on plate parts. The processing efficiency is very high, the plates with different thicknesses can be completely compatible, and the section roughness and the processing precision of the finished plate part can be reliably ensured, so that the method is very suitable for occasions with strict requirements on the processing precision and the processing efficiency of the plate part in daily manufacturing workshops.

5. In the numerical control cutting board center, the sleeve positioning and clamping mechanism mainly comprises an electromagnetic chuck and an auxiliary pneumatic clamping mechanism, and can realize accurate fixing of boards. When the plate is sent to the position in the X-direction feeding mechanism, the electromagnetic chuck is triggered to firmly fix the plate. For cutting of thick materials, the auxiliary pneumatic clamping mechanism can provide additional clamping force, and stability and accuracy of cutting are ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain, however, the utility model.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of an X-axis feeding mechanism according to the present utility model;

FIG. 3 is a second schematic diagram of the X-axis feeding mechanism of the present utility model;

FIG. 4 is a schematic diagram of the structure of the Y-axis feeding mechanism, the Z-axis cutting mechanism and the positioning and clamping mechanism of the center of the numerical control cutting plate;

FIG. 5 is a cross-sectional view of the Z-directed cutting mechanism of the present utility model.

Meaning of each reference numeral in the drawings:

An X-direction feeding mechanism 1; a drive motor a11; a timing belt mechanism 12; a drive pulley 121; a timing belt 122; a driven pulley 123; idler 124; a first ball screw mechanism 13; a first screw shaft 131; a first lead screw nut 132; a linear guide mechanism a14; a slider 141; a gantry feeding frame 15; the suction grip 16; a transfer drum 17;

A Y-direction feeding mechanism 2; a drive motor B21; a ball screw mechanism 22; a screw shaft 221; a linear guide mechanism B23; a first coupling 24; a carrier plate 25;

A Z-direction cutting mechanism 3; a drive motor C31; a second coupling 32; a slide plate 33; a second ball screw mechanism 34; a second screw shaft 341; a second lead screw nut 342; a linear bearing guide rod mechanism 35; a guide shaft 351; a linear bearing 352; a cutter head 36; a main drive motor 361; a decelerator 362; a blade 363;

A positioning and clamping mechanism 4; an electromagnetic chuck 41; an auxiliary pneumatic clamping machine 42;

A machine bed 5; a front support platform 51; and a rear support platform 52.

Detailed Description

The following description of embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

1-5, The numerical control cutting board center comprises an X-direction feeding mechanism 1, a Y-direction feeding mechanism 2, a Z-direction cutting mechanism 3, a positioning and clamping mechanism 4 and a lathe bed 5; the X-direction feeding mechanism 1 comprises a driving motor A11, a synchronous belt mechanism 12, a first ball screw mechanism 13, a linear guide rail mechanism A14, a gantry feeding frame 15, a suction grip 16 and a plurality of groups of conveying rollers 17; the Y-direction feeding mechanism 2 comprises a driving motor B21, a ball screw mechanism 22, a linear guide rail mechanism B23, a first coupler 24 and a bearing plate 25; the Z-direction cutting mechanism 3 comprises a driving motor C31, a second coupler 32, a sliding plate 33, a second ball screw mechanism 34, four groups of linear bearing guide rod mechanisms 35 and a cutting tool bit 36; the positioning and clamping mechanism 4 comprises an electromagnetic chuck 41 and an auxiliary pneumatic clamping machine 42, and the X-direction feeding mechanism 1 drives the synchronous belt mechanism 12 through the driving motor A11, so that the first ball screw mechanism 13 and the linear guide rail mechanism A14 work cooperatively, and accurate feeding of the plate in the X direction is realized. Meanwhile, the attraction gripper 16 firmly adsorbs the plate on the gantry feeding frame 15 by utilizing the magnetic attraction principle, so that the feeding stability and accuracy are ensured. The Y-direction feeding mechanism 2 drives the ball screw mechanism 22 and the linear guide rail mechanism B23 through the driving motor B21, so that the accurate feeding of the plate in the Y direction is realized. The cooperation of the first coupling 24 and the carrier plate 25 makes the feeding mechanism more stable and reliable. The Z-direction cutting mechanism 3 drives the second ball screw mechanism 34 and the linear bearing guide rod mechanism 35 through the driving motor C31, so that accurate cutting of the plate in the Z direction is realized. The cutter head 36 is an actuator with a drive, and can rotate at a high speed, thereby improving the cutting efficiency. Meanwhile, the auxiliary pneumatic clamping mechanism 42 can prevent the risk of workpiece compaction failure caused by insufficient suction of the electromagnetic chuck in the cutting process, ensures the cutting stability and precision, and has particularly obvious processing advantages on plate parts. The processing efficiency is very high, the plates with different thicknesses can be completely compatible, and the section roughness and the processing precision of the finished plate part can be reliably ensured, so that the method is very suitable for occasions with strict requirements on the processing precision and the processing efficiency of the plate part in daily manufacturing workshops. The sleeve positioning and clamping mechanism 4 mainly comprises an electromagnetic chuck 41 and an auxiliary pneumatic clamping mechanism 42, and can realize accurate fixing of the plate. When the plate is sent to the position in the X-direction feeding mechanism 1, the electromagnetic chuck 41 is triggered to firmly fix the plate. For some thick stock cuts, the auxiliary pneumatic clamping mechanism 42 can provide additional clamping force, ensuring stability and accuracy of the cut.

Further, the X-direction feeding mechanism 1 is composed of 1 driving motor a11, 2 sets of synchronous belt mechanisms 12, 2 sets of first ball screw mechanisms 13, 2 sets of linear guide rail mechanisms a14, 1 gantry feeding frame 15, a suction grip 16 and a plurality of groups of conveying rollers 17. The driving motor A11 is fixed on a front middle fixing plate of the lathe bed 5 through screws, the output end of the driving motor A is connected with 2 driving belt pulleys 121,2, and meanwhile, the speed and the moment of the motor are respectively transmitted to a driven belt pulley 123 fixedly connected with the shaft end of the first ball screw mechanism 13 through a synchronous belt 122; in order to increase the feeding space and prevent the synchronous belt from being damaged during operation, the winding direction of the synchronous belt is changed through 2 groups of idle wheels 124 so as to be distributed along the side upright post direction of the lathe bed 5 as much as possible; the 2 groups of first ball screw mechanisms 13 are respectively fixed on the left side and the right side of the front supporting platform 51 of the lathe bed 5; in order to improve the stability of the linear motion of the first ball screw mechanisms 13, a linear guide rail mechanism A14 is also arranged at the side part of each group of first ball screw mechanisms 13; the foot bases of the gantry feeding frame 15 are respectively fixed on the sliding blocks 141 of the left and right groups of linear guide rail mechanisms A14; the suction grip 16 is fixed in the middle of the gantry feeding frame 15, and the plate piece is firmly sucked by utilizing the magnetic suction principle; in order to facilitate the conveying and feeding of the plate materials, a plurality of groups of auxiliary rollers 17 are also arranged on two sides of the middle part of the front supporting platform 51 of the lathe bed 5; the screw shaft 131 of the first ball screw mechanism 13 is driven by the synchronous belt mechanism 12 to rotate, and the first screw nut 132 is fixedly connected with the sliding block 141 of the linear guide rail mechanism a14 through an adapter, so that the linear movement of the first screw nut 132 drives the gantry feeding frame 15 to move along the X direction, and further drives the feeding of the plate material along the X direction.

Specifically, the Y-direction feeding mechanism 2 is composed of 1 driving motor B21, 1 set of ball screw mechanism 22, 2 sets of linear guide rail mechanism B23, 1 first coupling 24 and 1 bearing plate 25. The 2 sets of linear guide rail mechanisms B23 are respectively fixed on a rear supporting platform 52 of the lathe bed 5; the bearing plate 25 is fixed on a sliding block on the linear guide rail mechanism B23 through a screw; the driving motor B21 is fixed on one side of the lathe bed 5, and the shaft end of the driving motor B is fixedly connected with a screw shaft 221 of the ball screw mechanism 22 through a first coupler 24; the transmission nut of the ball screw mechanism 22 is fixed below the bearing plate 25 by a screw; then, driven by the driving motor B21, the bearing plate 25 is moved along the Y direction by the transmission of the ball screw mechanism 22, so as to cut the plate along the specified length direction by the cutter head.

The Z-direction cutting mechanism 3 is composed of 1 driving motor C31, 1 second coupling 32, 1 sliding plate 33, 1 set of second ball screw mechanism 34, 4 sets of linear bearing guide rod mechanisms 35 and 1 cutting tool bit 36. The driving motor C31 is fixed at the central lower bottom of the bearing plate 25, and the output end of the driving motor C is fixedly connected with a second screw shaft 341 of the second ball screw mechanism 34 through a second coupler 32; the second screw nut 342 is fixedly connected with the middle part of the sliding plate 33 through a screw; the 4 groups of linear bearing guide rod mechanisms 35 are respectively arranged at four corner positions of the bearing plate 25; the guide rod 351 is fixedly connected with the bearing plate 25, the linear bearing 352 is fixedly connected with the sliding plate 33, and the linear bearing 352 realizes sliding fit movement along the axial direction through an inner hole and the guide rod shaft 351; the cutting tool bit 36 is an execution mechanism with a drive, and consists of a main drive motor 361, a speed reducer 362 and a blade 363; the main driving motor 361 outputs proper speed and moment to drive the blade 363 to rotate at high speed after passing through the speed reducer 362; the cutting bit 36 is fixed on the sliding plate 33 through the mounting seat surface of the reducer 362; driven by the driving motor C31, the second ball screw mechanism 34 drives the cutting tool bit 36 to move up and down along Z, i.e. to cut the tool bit longitudinally along the thickness direction of the plate.

In addition, the sleeve positioning and clamping mechanism 4 mainly comprises 4 groups of electromagnetic chucks 41 and an auxiliary pneumatic clamping mechanism 42. When the plate is sent to the position in the X-direction feeding mechanism 1, the electromagnetic chuck 41 is triggered, and the plate is firmly fixed by electromagnetic force; in order to prevent the risk of workpiece compaction failure caused by insufficient suction of the electromagnetic chuck in the cutting process due to large cutting force during cutting of some thick materials, an auxiliary pneumatic clamping mechanism 42 is also arranged; after the motor sucker 42 acts, the execution of the pneumatic clamping mechanism 42 is automatically triggered, so that the workpiece is more reliably firmly fixed on the lathe bed for cutting.

The working principle of the numerical control cutting board center is as follows: firstly, a precut plate is placed on a supporting surface formed by a plurality of groups of rollers 17 of a machine tool body 5; the suction grip 16 of the X-direction feeding mechanism 1 firmly clamps the plate material, and feeds the plate material along the X-direction under the action of the X-direction executing mechanism and the transmission mechanism, and the plate material reaches a designated position; secondly, the positioning and clamping mechanism 4 triggers the clamping action, and the plate material is firmly fixed on the bed surface by the combined clamping action of the electromagnetic chuck 41 and the auxiliary pneumatic clamping mechanism 42 to wait for the execution of the next action; then, the Z-direction cutting mechanism 3 acts, the position of the cutting knife head 36 for pre-executing cutting action is adjusted along the Z direction, and the cutting knife head 36 and the knife blade 363 are started to run at high speed; and finally, the Y-direction executing mechanism acts and feeds along the direction of the required length of the plate until the whole workpiece is cut from the plate to enter the blanking box, so that the whole plate cutting action is completed. The feeding speed is controlled, the processing efficiency is very high, the plates with different thicknesses can be completely compatible, and the section roughness and the processing precision of the finished plate can be reliably ensured.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a numerical control cuts out board center which characterized in that: comprises an X-direction feeding mechanism (1), a Y-direction feeding mechanism (2), a Z-direction cutting mechanism (3), a positioning and clamping mechanism (4) and a lathe bed (5);

the X-direction feeding mechanism (1) comprises a driving motor A (11), a synchronous belt mechanism (12), a first ball screw mechanism (13), a linear guide rail mechanism A (14), a gantry feeding frame (15), a suction grip (16) and a plurality of groups of conveying rollers (17);

The Y-direction feeding mechanism (2) comprises a driving motor B (21), a ball screw mechanism (22), a linear guide rail mechanism B (23), a first coupler (24) and a bearing plate (25);

The Z-direction cutting mechanism (3) comprises a driving motor C (31), a second coupler (32), a sliding plate (33), a second ball screw mechanism (34), four groups of linear bearing guide rod mechanisms (35) and a cutting tool bit (36);

the positioning and clamping mechanism (4) comprises an electromagnetic chuck (41) and an auxiliary pneumatic clamping machine (42).

2. The numerical control cutting board center according to claim 1, wherein: the driving motor A (11) is fixed on the front middle fixing plate of the lathe bed (5) through screws, the motor output end of the driving motor A is connected with 2 driving belt wheels (121), and the driving belt wheels (121) respectively transmit the speed and torque of the motor to driven belt wheels (123) fixedly connected with the shaft end of the first ball screw mechanism (13) through synchronous belts (122).

3. The numerical control cutting board center according to claim 1, wherein: the first ball screw mechanisms (13) are respectively fixed on the left side and the right side of a front supporting platform (51) of the lathe bed (5); a linear guide mechanism A (14) is also mounted on the side of each group of first ball screw mechanisms (13).

4. A numerical control cutting board center according to claim 3, characterized in that: the foot bases of the gantry feeding frame (15) are respectively fixed on the sliding blocks (141) of the left and right groups of linear guide rail mechanisms A (14); the suction grippers (16) are fixed in the middle of the gantry feeding frame (15), and a plurality of groups of conveying rollers (17) are further arranged on two sides of the middle of the front supporting platform (51) of the lathe bed (5).

5. A numerical control cutting board center according to claim 3, characterized in that: the first screw shaft (131) of the first ball screw mechanism (13) is driven by the synchronous belt mechanism (12) to rotate, and the screw nut (132) of the first ball screw mechanism is fixedly connected with the sliding block (141) of the linear guide rail mechanism A (14) through an adapter.

6. The numerical control cutting board center according to claim 1, wherein: the linear guide rail mechanisms B (23) are respectively fixed on a rear supporting platform (52) of the lathe bed (5); the bearing plate (25) is fixed on a sliding block on the linear guide rail mechanism B (23) through a screw.

7. The numerical control cutting board center according to claim 6, wherein: the driving motor B (21) is fixed on one side of the lathe bed (5), and the shaft end of the driving motor B is fixedly connected with a screw shaft (221) of the ball screw mechanism (22) through a first coupler (24); the transmission nut of the ball screw mechanism (22) is fixed below the bearing plate (25) through a screw.

8. The numerical control cutting board center according to claim 1, wherein: the driving motor C (31) is fixed at the lower center bottom of the bearing plate (25), and the output end of the driving motor C is fixedly connected with a second screw shaft (341) of the second ball screw mechanism (34) through the second coupler (32); the second screw rod nut (342) is fixedly connected with the middle part of the sliding plate (33) through a screw; the four groups of linear bearing guide rod mechanisms (35) are respectively arranged at four corner positions of the bearing plate (25).

9. The numerical control cutting board center according to claim 1, wherein: a guide rod shaft (351) in the linear bearing guide rod mechanism (35) is fixedly connected with the bearing plate (25), a linear bearing (352) of the guide rod shaft is fixedly connected with the sliding plate (33), and the linear bearing (352) and the guide rod shaft (351) realize axial sliding fit movement through an inner hole.

10. The numerical control cutting board center according to claim 1, wherein: the cutting tool bit (36) comprises a main driving motor (361), a speed reducer (362) and a blade (363); the main driving motor (361) and the moment drive the blade (363) to rotate at a high speed through the cooperation of the speed reducer (362); the cutting tool bit (36) is fixed on the sliding plate (33) through the mounting seat surface of the speed reducer (362).