Numerical control cutting device for numerical control machining

Abstract

The utility model relates to the technical field of numerical control machining, in particular to a numerical control cutting device for numerical control machining, which comprises a cutting machine body and a rack size adjusting mechanism fixedly connected with the cutting machine body, the rack size adjusting mechanism is connected with two self-adaptive limiting mechanisms in a clamping mode, and the rack size adjusting mechanism comprises a workbench. A first square groove is formed in the outer wall of one side of the workbench, a first T-shaped block is fixedly connected to the inner wall of one side of the first square groove, an L-shaped telescopic table is slidably inserted into the first square groove, and a third T-shaped groove is formed in the outer wall of one side of the L-shaped telescopic table. According to the utility model, when a worker pulls the grip, the L-shaped telescopic table can be caused to move, the adjustment is carried out according to the width of a plate, good adaptation and a compact working area are ensured, the worker only needs to simply pull the grip no matter the width of the plate is increased or decreased, the adjustment can be quickly completed, the working efficiency is effectively improved, and the labor intensity of the worker is reduced. And the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a numerical control cutting device for numerical control machining. Background Art

[0002] CNC cutting devices, especially portable CNC plasma cutting machines, are indispensable and important equipment in modern CNC machining. They are widely used in cutting carbon steel, stainless steel and non-ferrous metal plates of various thicknesses. They are favored by various industries for their high precision and efficiency, such as automobile manufacturing, shipbuilding, railway vehicle production, petrochemical industry, boiler pressure vessel manufacturing, engineering machinery and light industrial machinery.

[0003] However, when using the existing portable cutting device, workers are usually required to manually fix or push the plate for cutting. This process not only requires workers to have rich experience and skills, but also requires a lot of physical strength and energy to ensure the stability of the plate and the accuracy of cutting.

[0004] Useful content

[0005] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a CNC cutting device for CNC machining. When a person pulls the handle, it will cause the L-shaped telescopic table to move. This adjustment is made according to the width of the plate to ensure a good fit and a compact working area. Whether increasing or decreasing the width of the plate, the person only needs to simply pull the handle to quickly complete the adjustment, effectively improving work efficiency and convenient operation. No matter how the person moves the L-shaped telescopic table to a specific position, the L-shaped frame three and the L-shaped frame two slide, which can keep the outer wall of one side of the plate against the same level, preventing uneven force when pushing the plate, affecting the cutting accuracy, and effectively improving work stability and cutting quality.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A numerical control cutting device for numerical control machining comprises a cutting machine body and a platform size adjustment mechanism fixedly connected to the cutting machine body, wherein the platform size adjustment mechanism is clamped with two adaptive limit mechanisms;

[0008] The stand size adjustment mechanism includes a workbench, a square groove 1 is opened on the outer wall of one side of the workbench, a T-shaped block 1 is fixedly connected to the inner wall of one side of the square groove 1, an L-shaped telescopic table is slidably inserted into the inside of the square groove 1, a T-shaped groove 3 is opened on the outer wall of one side of the L-shaped telescopic table, the T-shaped groove 3 is slidably inserted into the square groove 1, and a handle is fixedly connected to the outer wall of one side of the L-shaped telescopic table.

[0009] Further, a square groove four is provided at an outer wall near one side at one end of the workbench, a square tube is slidably inserted inside the square groove four, an L-shaped frame three is fixedly connected to the outer wall of the extendable end of the L-shaped telescopic table, an L-shaped frame two is fixedly connected to the outer wall of one end of the square tube, a plurality of square grooves two are provided on the outer wall of the L-shaped frame two, a plurality of square notches are provided on the outer wall of the L-shaped frame three, and the L-shaped frame three is slidably inserted into the square groove two.

[0010] Preferably: a circular hole is provided on the outer wall of one end of the workbench near one side, a threaded groove is provided on the outer wall of one end of the L-shaped telescopic table, a hexagonal screw is slidably inserted into the circular hole one, and the hexagonal screw is screwed together with the threaded groove one, a circular hole is provided on the outer wall of one end of the L-shaped frame two, a hexagonal screw is slidably inserted into the circular hole two, and a threaded groove two is provided on the outer wall of the L-shaped frame three near one end, and the threaded groove two is screwed together with the hexagonal screw two.

[0011] Preferably: a plurality of circular grooves 1 are formed at equal intervals on the outer wall of the top end of the L-shaped telescopic platform near the position of the thread groove 1, the outer wall of the hexagonal screw 1 is slidably plugged into the circular groove 1, a plurality of circular grooves 3 are formed at equal intervals on the outer wall of the top end of the L-shaped frame 3, the hexagonal screw 2 is slidably plugged into the circular groove 3.

[0012] Preferably: a toothed plate is fixedly connected at the second bottom end of the L-shaped frame near the center position, a slide groove is opened at the bottom end of the workbench near the center position, the outer wall of the toothed plate is slidably plugged into the slide groove at the bottom end of the workbench, a motor is fixedly connected at the outer wall of the bottom end of the workbench near one end of the slide groove, a spur gear 1 is fixedly connected to the outer wall of the motor shaft of the motor, and the outer wall of the spur gear 1 is meshed with the outer wall of the toothed plate for transmission.

[0013] Preferably: the adaptive limiting mechanism includes square shell 1 and square shell 2, the outer walls at both ends of square shell 1 are fixedly connected with trapezoidal tube 1, trapezoidal tube 2 is slidably inserted inside trapezoidal tube 1, the outer wall of the bottom end of trapezoidal tube 1 is fixedly connected with arc rod 1 near one side, the outer wall of the bottom end of trapezoidal tube 1 is provided with square hole 1 at one side of arc rod 1, the outer wall of the bottom end of trapezoidal tube 2 is fixedly connected with arc rod 2 at one of the square holes, and the arc rod 2 is slidably inserted into the square hole 1.

[0014] Preferably: a dual-axis motor is fixedly connected inside the square shell one, and both motor shafts of the dual-axis motor are fixedly connected to a telescopic rod one, and the outer wall of one end of the telescopic rod one is sleeved and fixedly connected to a spur gear two, a cross groove is opened inside the square shell two, and the inner wall of one side of the cross groove is fixedly connected to a rack, the outer wall of the spur gear two is meshed with the rack for transmission, and the outer wall of one end of the trapezoidal tube two is slidably plugged into the outer wall of the square shell two.

[0015] Preferably: a T-shaped block 2 is fixedly connected to the outer wall of the bottom end of the second square shell, a T-shaped slot 1 is opened on the outer wall of one side of the workbench, a T-shaped slot 2 is opened on the outer wall of one side of the L-shaped telescopic platform, the outer wall of the second T-shaped block is slidably plugged with the T-shaped slot 1 or the T-shaped slot 2, a round hole 3 is opened near the bottom end of the outer wall of one side of the second square shell, a magnetic nail 1 is slidably plugged into the round hole 3, a plurality of round grooves 2 are opened at equal intervals near the top end of the outer wall of one side of the L-shaped telescopic platform and the outer wall of one side of the workbench, and the magnetic nail 1 is plugged into the round groove 2

[0016] Preferably: a U-shaped telescopic tube is fixedly connected between the outer walls of the two square shells; a plurality of circular holes four are opened at equal intervals on the outer wall of the U-shaped telescopic tube; a telescopic rod two is slidably inserted into the outer wall of the four circular holes; a square hole two or a square hole three is opened on the outer wall of the two telescopic rods; the square hole two or the square hole three is slidably inserted into the outer wall of the four circular holes; a magnetic nail two is slidably inserted into the outer wall of the top end of the two telescopic rods; and the outer wall of the two magnetic nails is slidably inserted into the four circular holes.

[0017] Beneficial effects of this utility:

[0018] 1. Two adaptive limit mechanisms are connected through the table size adjustment mechanism. The table size adjustment mechanism mainly includes a workbench, a square groove 1 is opened on the outer wall of one side of the workbench, and a T-shaped block 1 is fixedly connected to the inner wall of one side of the square groove 1, an L-shaped telescopic table is slidably inserted in the square groove 1, and a T-shaped groove 3 is opened on the outer wall of one side of the L-shaped telescopic table, and the T-shaped groove 3 is slidably inserted with the square groove 1, and a handle is fixedly connected to the outer wall of one side of the L-shaped telescopic table. When a person pulls the handle, it will cause the L-shaped telescopic table to move. This adjustment is made according to the width of the plate to ensure a good fit and a compact working area. Whether increasing or decreasing the width of the plate, the person only needs to simply pull the handle to quickly complete the adjustment, effectively improving work efficiency and convenient operation.

[0019] 2. A square groove 4 is provided at one end of the workbench near one side of the outer wall, a square tube is slidably inserted in the square groove 4, and an L-shaped frame 3 is fixedly connected to the outer wall of the extendable end of the L-shaped telescopic table, and an L-shaped frame 2 is fixedly connected to the outer wall of one end of the square tube, and a plurality of square grooves 2 are provided on the outer wall of the L-shaped frame 2, and a plurality of square notches are provided on the outer wall of the L-shaped frame 3, and the L-shaped frame 3 is slidably inserted with the square groove 2. No matter how the personnel moves the L-shaped telescopic table to a specific position, the L-shaped frame 3 slides with the L-shaped frame 2 to keep the outer wall of one side against which the plate is against at the same level, thereby preventing uneven force when pushing the plate and affecting the cutting accuracy, and effectively improving the working stability and cutting quality.

[0020] 3. A round hole is provided at a position near one side of the outer wall of one end of the workbench, a threaded groove is provided at the outer wall of one end of the L-shaped telescopic table, and a hexagonal screw is slidably inserted in the round hole, and the hexagonal screw is screwed together with the threaded groove, and a round hole is provided at the outer wall of one end of the L-shaped frame, and a hexagonal screw is slidably inserted in the round hole, and a threaded groove is provided at a position near one end of the outer wall of the L-shaped frame, and the threaded groove is screwed together with the hexagonal screw. When not in work, the L-shaped telescopic table and the L-shaped frame two or the L-shaped frame three can be fixed on the workbench by screwing together the hexagonal screw one and the threaded groove one or the hexagonal screw two and the threaded groove two to prevent shaking, sliding out or colliding with people during carrying, effectively improving stability and safety, and convenient carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the platform size adjustment mechanism in the utility model;

[0024] Figure 3 This utility model Figure 2 Schematic diagram of the structure at a in the middle;

[0025] Figure 4 This is a schematic structural diagram of another angle of the platform size adjustment mechanism in the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the adaptive limiting mechanism in the utility model;

[0027] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point b in the middle.

[0028] In the figure: 100, cutting machine body; 200, stand size adjustment mechanism; 210, workbench; 211, T-shaped slot 1; 212, square slot 1; 213, T-shaped block 1; 214, round hole 1; 215, hexagonal screw 1; 216, square slot 4; 217, square tube; 220, L-shaped telescopic table; 221, round slot 1; 222, round slot 2; 223, T-shaped slot 2; 224, T-shaped slot 3; 225, handle; 226, threaded slot 1; 230, L-shaped frame 2; 231, square slot 2; 232, L-shaped frame 3; 233, square notch; 234, round hole 2; 235, hexagonal screw 2; 236, round slot 3; 237, Thread groove two; 240, tooth plate; 241, motor; 242, spur gear one; 300, adaptive limit mechanism; 310, square shell one; 311, trapezoidal tube one; 312, arc rod one; 313, square hole one; 314, trapezoidal tube two; 315, arc rod two; 320, double-axis motor; 321, telescopic rod one; 322, spur gear two; 330, square shell two; 331, T-shaped block two; 332, cross groove; 333, rack; 334, round hole three; 335, magnetic nail one; 340, U-shaped telescopic tube; 341, round hole four; 342, telescopic rod two; 343, square hole two; 344, square hole three; 345, magnetic nail two. DETAILED DESCRIPTION

[0029] The following will be combined with the practical embodiment to clearly and completely describe the technical solution in the practical embodiment. Obviously, the described embodiment is only a part of the practical embodiment, not all of the embodiments. Based on the embodiment in the practical, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical.

[0030] See also Figure 1-6In an embodiment of the utility model, a CNC cutting device for CNC machining includes a cutting machine body 100 and a stand size adjustment mechanism 200 fixedly connected to the cutting machine body 100, the stand size adjustment mechanism 200 is clamped with two adaptive limit mechanisms 300, the stand size adjustment mechanism 200 includes a workbench 210, a square groove 212 is provided on one side of the outer wall of the workbench 210, a T-shaped block 213 is fixedly connected to the inner wall of one side of the square groove 212, an L-shaped telescopic table 220 is slidably inserted in the square groove 212, and a T-shaped groove 224 is provided on one side of the outer wall of the L-shaped telescopic table 220. The third 224 is slidably connected with the square groove 1 212, a handle 225 is fixedly connected to the outer wall of one side of the L-shaped telescopic platform 220, a square groove 4 216 is opened near one side of the outer wall of one end of the workbench 210, and a square tube 217 is slidably connected inside the square groove 4 216, an L-shaped frame 3 232 is fixedly connected to the outer wall of the extendable end of the L-shaped telescopic platform 220, and an L-shaped frame 2 230 is fixedly connected to the outer wall of one end of the square tube 217, a plurality of square grooves 231 are opened on the outer wall of the L-shaped frame 230, and a plurality of square notches 233 are opened on the outer wall of the L-shaped frame 3 232, and the L-shaped frame 3 232 is slidably connected with the square groove 2 231.

[0031] A circular hole 214 is provided at one end of the outer wall of the workbench 210 near one side, a threaded groove 226 is provided at one end of the outer wall of the L-shaped telescopic platform 220, a hexagonal screw 215 is slidably inserted into the circular hole 214, and the hexagonal screw 215 is screwed together with the threaded groove 226, a circular hole 234 is provided at one end of the outer wall of the L-shaped frame 230, a hexagonal screw 235 is slidably inserted into the circular hole 234, a threaded groove 237 is provided at one end of the outer wall of the L-shaped frame 3 232, and the threaded groove 237 is screwed together with the hexagonal screw 235, and a plurality of circular grooves 221 are provided at equal intervals near the threaded groove 226 at the top of the L-shaped telescopic platform 220. The outer wall of the hexagonal screw 215 is slidably connected with the circular groove 221. A plurality of circular grooves 236 are evenly spaced on the outer wall of the top of the L-shaped frame 3 232. The hexagonal screw 235 is slidably connected with the circular groove 236. A toothed plate 240 is fixedly connected with the bottom of the L-shaped frame 230 near the center. A slide groove is opened near the center of the bottom of the workbench 210. The outer wall of the toothed plate 240 is slidably connected with the slide groove at the bottom of the workbench 210. A motor 241 is fixedly connected with the outer wall of the bottom of the workbench 210 near one end of the slide groove. A spur gear 242 is fixedly connected to the outer wall of the motor shaft of the motor 241. The outer wall of the spur gear 242 is meshed with the outer wall of the toothed plate 240 for transmission.

[0032] The adaptive limit mechanism 300 includes a square shell 1 310 and a square shell 2 330. The outer walls of both ends of the square shell 1 310 are fixedly connected to a trapezoidal tube 1 311. A trapezoidal tube 2 314 is slidably inserted inside the trapezoidal tube 1 311. An arc rod 1 312 is fixedly connected to the outer wall of the bottom end of the trapezoidal tube 1 311 near one side. A square hole 1 313 is opened on the outer wall of the bottom end of the trapezoidal tube 1 311 at one side of the arc rod 1 312. The outer wall of the bottom end of the trapezoidal tube 2 314 is fixedly connected to an arc rod 2 315 at the square hole 1 313. The arc rod 2 315 slides with the square hole 1 313. The square shell 310 is fixedly connected with a double-axis motor 320, and the two motor shafts of the double-axis motor 320 are fixedly connected with a telescopic rod 321. The outer wall of one end of the telescopic rod 321 is sleeved and fixedly connected with a spur gear 322. A cross groove 332 is opened inside the square shell 330, and a rack 333 is fixedly connected to the inner wall of one side of the cross groove 332. The outer wall of the spur gear 322 is meshed with the rack 333 for transmission. The outer wall of one end of the trapezoidal tube 314 is slidably connected with the outer wall of the square shell 330. The outer wall of the bottom end of the square shell 330 is fixedly connected with a T-shaped block 332. 31. A T-shaped slot 211 is provided on one side of the workbench 210, a T-shaped slot 223 is provided on one side of the L-shaped telescopic platform 220, an outer wall of a T-shaped block 231 is slidably plugged with the T-shaped slot 211 or the T-shaped slot 223, a round hole 334 is provided on one side of the square shell 230 near the bottom, a magnetic nail 335 is slidably plugged into the round hole 334, a plurality of round slots 222 are provided at equal intervals on one side of the outer wall of the L-shaped telescopic platform 220 near the top and on one side of the workbench 210 near the top, a magnetic nail 335 is provided on the outer wall of the square shell 230 near the bottom. A U-shaped telescopic tube 340 is fixedly connected between the outer walls of the two square shells 330 to be plugged in and matched with the circular groove 222. A plurality of circular holes 341 are provided at equal intervals on the outer wall of the U-shaped telescopic tube 340. A telescopic rod 342 is slidably plugged into the outer wall of the circular hole 341. A square hole 243 or a square hole 344 is provided on the outer wall of the telescopic rod 342. The square hole 243 or the square hole 344 is slidably plugged into the outer wall of the circular hole 341. A magnetic nail 245 is slidably plugged into the outer wall of the top end of the telescopic rod 342. The outer wall of the magnetic nail 245 is slidably plugged into the circular hole 341.

[0033] Specifically, during work, the personnel adjust the stand size adjustment mechanism 200 according to the size of a type of plate, twist the hexagonal screw 1 215 or the hexagonal screw 2 235 with an electric wrench to separate the hexagonal screw 1 215 from the thread groove 1 226 or the hexagonal screw 2 235 from the thread groove 2 237, pull the handle 225 to drive the L-shaped telescopic table 220 to move to the specified position outside the workbench 210, plug the hexagonal screw 1 215 and the hexagonal screw 2 235 into the corresponding circular groove 1 221 or circular groove 3 236 to fix the position, the motor 241 drives the spur gear 1 242 to rotate, and drives the L-shaped frame 230 and the L-shaped frame 3 232 to slide to the specified position outside the workbench 210, the personnel puts one end of the plate against the L-shaped frame 230 and the L-shaped frame 3 232, and places the other end on the workbench 210, and adjusts the adaptive limit mechanism 300 according to the plate or work requirements. The self-adaptive limiting mechanism 300 is positioned, and the magnetic nail 1 335 is pulled to drive the self-adaptive limiting mechanism 300 to slide to the specified position along the trajectory of the T-slot 223, and the magnetic nail 1 335 is plugged into the circular hole 334 or the corresponding circular groove 222, and adsorbed with the square shell 2 330 to prevent it from falling off, and the magnetic nail 2 345 is pulled up, and the telescopic rod 2 342 is pushed to be close to one end of the plate, and the magnetic nail 2 345 is plugged into the corresponding circular hole 4 341, and adsorbed with the outer wall of the U-shaped telescopic tube 340. After the cutting machine body 100 is adjusted, it starts to cut the plate, and the motor 241 drives the L-shaped frame 230 and the L-shaped frame 3 232 to push the plate to move. During this period, the dual-axis motor 320 drives the telescopic rod 1 321 to rotate, drives the spur gear 2 322 to mesh with the rack 333, and drives the trapezoidal tube 1 311 and the trapezoidal tube 2 314 to rise and fall, so as to fix plates of different thicknesses, and prevent tilting or shaking during pushing, thereby affecting the cutting accuracy.

[0034] Embodiment 1

[0035] like Figure 1 and 5 As shown, in the present embodiment, the adaptive limiting mechanism 300 includes a square shell 310, the outer walls at both ends of the square shell 310 are fixedly connected with a trapezoidal tube 311, a trapezoidal tube 314 is slidably inserted inside the trapezoidal tube 311, an arc rod 312 is fixedly connected to the outer wall of the bottom end of the trapezoidal tube 311 near one side, a square hole 313 is provided on the outer wall of the bottom end of the trapezoidal tube 311 at one side of the arc rod 312, and an arc rod 315 is fixedly connected to the outer wall of the bottom end of the trapezoidal tube 314 at the square hole 313, and the arc rod 315 is slidably inserted into the square hole 313.

[0036] In this embodiment, when a person pulls the L-shaped telescopic table 220 to move, it will also drive the trapezoidal tube 2 314 to extend outside the trapezoidal tube 1 311. No matter where it extends to, the arc rod 1 312 and the arc rod 2 315 can be kept at the same level, so that the arc rod 1 312 and the arc rod 2 315 can be evenly and tightly attached to the plate to prevent uneven force and excessive force on one side, which will cause the plate to tilt and affect the cutting accuracy.

[0037] like Figure 1 and 5 As shown, in this embodiment, a dual-axis motor 320 is fixedly connected to the interior of the square shell 1 310, and both motor shafts of the dual-axis motor 320 are fixedly connected to a telescopic rod 1 321, and a spur gear 2 322 is fixedly connected to the outer wall of one end of the telescopic rod 1 321, and a cross groove 332 is provided inside the square shell 2 330, and a rack 333 is fixedly connected to the inner wall of one side of the cross groove 332, and the outer wall of the spur gear 2 322 is meshed with the rack 333 for transmission, and the outer wall of one end of the trapezoidal tube 2 314 is slidably plugged into the outer wall of the square shell 2 330.

[0038] In specific implementation, the dual-axis motor 320 drives the telescopic rod 1 321 to rotate, drives the spur gear 2 322 to engage with the arc rod 1 312, drives the trapezoidal tube 1 311 or the trapezoidal tube 2 314 to rise and fall according to the thickness of the plate, close to the plate, fix it, and prevent the plate from shaking or one side from tilting during the pushing process.

[0039] Embodiment 2

[0040] like Figure 5-6 As shown, in this embodiment, a U-shaped telescopic tube 340 is fixedly connected between the outer walls of the two square shells 330, and a plurality of circular holes 341 are opened at equal intervals on the outer wall of the U-shaped telescopic tube 340. A telescopic rod 342 is slidably inserted into the outer wall of the circular hole 341. A square hole 343 or a square hole 344 is opened on the outer wall of the telescopic rod 342. The square hole 343 or the square hole 344 is slidably inserted into the outer wall of the circular hole 341. A magnetic nail 345 is slidably inserted into the outer wall of the top end of the telescopic rod 342. The outer wall of the magnetic nail 345 is slidably inserted into the circular hole 341.

[0041] During specific implementation, by pulling up the second magnetic nail 345 and pushing the second telescopic rod 342 to be close to one end of the plate, the second magnetic nail 345 is plugged into the corresponding fourth round hole 341 and adsorbed onto the outer wall of the U-shaped telescopic tube 340. A second square hole 343 and a third square hole 344 are provided. No matter where the second telescopic rod 342 is in the fourth round hole 341, it can be clamped, thereby effectively improving stability.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific characteristic structure materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific characteristic structure materials or features described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The above contents are merely examples and explanations of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A CNC cutting device for CNC machining, characterized in that: It includes a cutting machine body and a stand size adjustment mechanism fixedly connected to the cutting machine body, wherein the stand size adjustment mechanism is clamped with two adaptive limit mechanisms; The stand size adjustment mechanism includes a workbench, a square groove 1 is opened on the outer wall of one side of the workbench, a T-shaped block 1 is fixedly connected to the inner wall of one side of the square groove 1, an L-shaped telescopic table is slidably inserted into the inside of the square groove 1, a T-shaped groove 3 is opened on the outer wall of one side of the L-shaped telescopic table, the T-shaped groove 3 is slidably inserted into the square groove 1, and a handle is fixedly connected to the outer wall of one side of the L-shaped telescopic table.

2. A CNC cutting device for CNC machining according to claim 1, characterized in that: A square groove four is provided at the outer wall of one end of the workbench near one side, a square tube is slidably inserted in the square groove four, an L-shaped frame three is fixedly connected to the outer wall of the extendable end of the L-shaped telescopic table, an L-shaped frame two is fixedly connected to the outer wall of one end of the square tube, a plurality of square grooves two are provided on the outer wall of the L-shaped frame two, a plurality of square notches are provided on the outer wall of the L-shaped frame three, and the L-shaped frame three is slidably inserted into the square groove two.

3. A CNC cutting device for CNC machining according to claim 2, characterized in that: A circular hole is provided on the outer wall of one end of the workbench near one side, a threaded groove is provided on the outer wall of one end of the L-shaped telescopic table, a hexagonal screw is slidably inserted into the circular hole, and the hexagonal screw is screwed together with the threaded groove, a circular hole is provided on the outer wall of one end of the L-shaped frame, a hexagonal screw is slidably inserted into the circular hole, and a threaded groove is provided on the outer wall of the L-shaped frame at one end, and a hexagonal screw is screwed together with the threaded groove, and a threaded groove is provided on the outer wall of the L-shaped frame at one end near one end, and the threaded groove is screwed together with the hexagonal screw.

4. A CNC cutting device for CNC machining according to claim 3, characterized in that: The outer wall of the top end of the L-shaped telescopic platform is provided with a plurality of circular grooves 1 at equal intervals near the position of the thread groove 1, the outer wall of the hexagonal screw 1 is slidably plugged into the circular groove 1, the outer wall of the top end of the L-shaped frame 3 is provided with a plurality of circular grooves 3 at equal intervals, the hexagonal screw 2 is slidably plugged into the circular groove 3.

5. A CNC cutting device for CNC machining according to claim 4, characterized in that: A toothed plate is fixedly connected at the second bottom end of the L-shaped frame near the center position, a sliding groove is opened at the bottom end of the workbench near the center position, the outer wall of the toothed plate is slidably plugged into the sliding groove at the bottom end of the workbench, a motor is fixedly connected at the outer wall of the bottom end of the workbench near one end of the sliding groove, a spur gear 1 is fixedly connected to the outer wall of the motor shaft of the motor, and the outer wall of the spur gear 1 is meshed with the outer wall of the toothed plate for transmission.

6. A CNC cutting device for CNC machining according to claim 5, characterized in that: The adaptive limiting mechanism includes square shell 1 and square shell 2. The outer walls at both ends of the square shell 1 are fixedly connected with trapezoidal tube 1, and trapezoidal tube 2 is slidably inserted in the trapezoidal tube 1. The outer wall of the bottom end of the trapezoidal tube 1 is fixedly connected with an arc rod 1 near one side. The outer wall of the bottom end of the trapezoidal tube 1 is located on one side of the arc rod 1 and has a square hole 1. The outer wall of the bottom end of the trapezoidal tube 2 is located at the square hole and is fixedly connected with an arc rod 2. The arc rod 2 is slidably inserted into the square hole 1.

7. A CNC cutting device for CNC machining according to claim 6, characterized in that: A double-axis motor is fixedly connected inside the square shell one, and both motor shafts of the double-axis motor are fixedly connected to a telescopic rod one, and the outer wall of one end of the telescopic rod is sleeved and fixedly connected to a spur gear two, and a cross groove is opened inside the square shell two, and the inner wall of one side of the cross groove is fixedly connected to a rack, and the outer wall of the spur gear two is meshed with the rack for transmission, and the outer wall of one end of the trapezoidal tube two is slidably plugged into the outer wall of the square shell two.

8. A CNC cutting device for CNC machining according to claim 7, characterized in that: The outer wall of the bottom end of the second square shell is fixedly connected with a T-shaped block 2, the outer wall of one side of the workbench is provided with a T-shaped slot 1, the outer wall of one side of the L-shaped telescopic table is provided with a T-shaped slot 2, the outer wall of the second T-shaped block is slidably plugged with the T-shaped slot 1 or the T-shaped slot 2, a circular hole 3 is provided on the outer wall of one side of the second square shell near the bottom end, a magnetic nail 1 is slidably plugged into the circular hole 3, a plurality of circular grooves 2 are evenly spaced apart on the outer wall of one side of the L-shaped telescopic table near the top end and on the outer wall of one side of the workbench near the top end, and the magnetic nail 1 is plugged into the circular groove 2.

9. A CNC cutting device for CNC machining according to claim 8, characterized in that: A U-shaped telescopic tube is fixedly connected between the outer walls of the two square shells. A plurality of circular holes four are opened at equal intervals on the outer wall of the U-shaped telescopic tube. A telescopic rod two is slidably inserted into the outer wall of the four circular holes. A square hole two or a square hole three is opened on the outer wall of the two telescopic rods. The square hole two or the square hole three is slidably inserted into the outer wall of the four circular holes. A magnetic nail two is slidably inserted into the outer wall of the top end of the two telescopic rods. The outer wall of the two magnetic nails is slidably inserted into the four circular holes.

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