Numerically-controlled machine tool with waste recovery structure and using method

Abstract

The invention relates to the technical field of numerical control machine tools, and particularly discloses a numerical control machine tool with a waste recovery structure and a using method. The recycling box is mounted on the outer wall of the part in a sleeving manner; the circulating pump is fixedly installed on the outer wall of the recycling box, and the air outlet end and the negative pressure end of the circulating pump are provided with a positive pressure pipe and a negative pressure pipe correspondingly; the negative pressure cavity and the channel are formed in the recycling box, a round opening is formed in one end of the negative pressure cavity, and one end of the negative pressure pipe is inserted into the negative pressure cavity from the round opening, so that when the circulating pump works, gas in the negative pressure cavity can be pumped out through the negative pressure pipe, and negative pressure is formed in the negative pressure cavity; the channel is located below the negative pressure cavity, the shape of the inner wall of the channel is matched with the shape of the part, chippings generated when the part is cut by the cutter are sucked into the negative pressure cavity under the action of negative pressure, and therefore the chippings are collected.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled machine tools, and in particular to a numerically controlled machine tool with a waste recovery structure and a use method thereof. Background Art

[0002] CNC machine tools are programmed and controlled through digital information instructions to achieve automated processing operations. Its working principle mainly includes the steps of inputting instructions, interpreting instructions, controlling execution and monitoring processing. The operator inputs the relevant instructions for processing graphics through the computer terminal or the special CNC machine tool operation interface. These instructions are usually given in the form of code. According to the input code instructions, the computer system interprets the motion trajectory, speed, acceleration and other parameters to be completed by each instruction, and converts them into digital signals. Through the servo motor, hydraulic system, pneumatic system and other components of the CNC system, the various movements of the machine tool are controlled to realize the processing of the processing graphics. CNC machine tools with waste recovery structures are usually composed of a base, a machine tool body, a waste recovery box and related transmission mechanisms. Waste recovery box: usually located below or on one side of the machine tool body, used to collect waste generated during the processing process. The waste recovery box may be equipped with filter mesh holes, extrusion mechanisms, etc. to achieve impurity separation and compression of waste; For example, the prior art publication number CN209578977U discloses a CNC lathe that is convenient for recycling waste materials. The technology includes a base, a protective door is movably installed on the front of the base, a chuck is fixedly connected to the back of the protective door and located on the top of the base, and a tool holder is movably installed on the right side of the chuck and located on the top of the base. The CNC lathe that is convenient for recycling waste materials collects the waste falling from the chip groove inside the recycling box by using the recycling bin in conjunction with the recycling box; However, the problem with the above-mentioned prior art is that the above-mentioned waste recycling collection method is to install a recycling box at the bottom of the original machine tool, so that the chips generated by cutting fall into the recycling box. In this way, when parts are processed, the chips will still be scattered everywhere due to the splashing effect. Some parts will be adsorbed on the parts or the inner wall of the machine tool shell due to electrostatic adsorption, resulting in manual cleaning. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] The present invention provides a CNC machine tool with a waste recovery structure and a method of use, which can solve the problem of the CNC machine tool in the prior art that the debris of parts splashes everywhere after turning and is difficult to clean up. The specific scheme is as follows: On the one hand, the present invention provides a CNC machine tool with a waste recovery structure, comprising a machine tool, a chuck and a tool holder, wherein the chuck is installed at one end inside the machine tool and is used to clamp one end of a part to be processed, and a tool is installed on the tool holder, and when the chuck rotates under the drive of a driving device, the tool can turn the surface of the part to form the part into a desired shape; Also includes: A recycling box is sleeved and installed on the outer wall of the component; A circulation pump, wherein the circulation pump is fixedly mounted on the outer wall of the recovery box, and a positive pressure pipe and a negative pressure pipe are respectively mounted on the air outlet end and the negative pressure end of the circulation pump; A negative pressure chamber and a channel, wherein the negative pressure chamber and the channel are respectively formed inside the recovery box, a circular opening is opened at one end of the negative pressure chamber, and one end of the negative pressure tube is inserted into the negative pressure chamber from the circular opening, so that when the circulation pump is working, the gas in the negative pressure chamber can be extracted through the negative pressure tube, so that negative pressure is formed in the negative pressure chamber; The channel is located below the negative pressure chamber, and the shape of the inner wall of the channel matches the shape of the part, wherein the debris generated by the part being cut by the tool is sucked into the negative pressure chamber under the action of negative pressure, thereby achieving the effect of collecting the debris.

[0005] Preferably, it also includes: An air blowing nozzle is installed on the inner wall of the recovery box. The position of the air blowing nozzle and the position of the negative pressure chamber are respectively located on the two inner walls of the recovery box. The positions of the two are located above the front and back sides of the parts. An air inlet is provided on the top of the air blowing nozzle. One end of the positive pressure tube is fixedly connected to the air inlet, so that the gas output by the circulating pump can enter the air blowing nozzle.

[0006] Preferably, it also includes: An opening is provided at one end of the recycling box close to the tool, and is used to allow the tool to extend into the recycling box, thereby performing turning processing on the parts.

[0007] Preferably, both ends of the recycling box are closed, and a circular groove is opened in the middle of the closing plate. The inner diameter of the circular groove is larger than the outer diameter of the part to be processed. Through the circular groove, the recycling box can also be mounted on the outer wall of the part from one end of the part and slide in the axial direction of the part.

[0008] Preferably, it also includes: An inclined plate connected to the inner wall of the negative pressure chamber, wherein a gap is formed between one end of the inclined plate and the inner wall of the negative pressure chamber, and the gap is used to allow the debris from the machining of the parts to pass through; The arc plate is located above the gap, and one end of the arc plate is fixed inside the negative pressure chamber. Through the action of the arc plate, when the debris of the parts is sucked into the negative pressure chamber, the debris can be guided into the lower part of the upper surface of the inclined plate under the guidance of the arc at the bottom of the arc plate.

[0009] Preferably, it also includes: A discharge trough is connected to one end of the inclined plate and penetrates into the interior of the negative pressure chamber. The inner wall of the machine tool is connected with the discharge trough, and the discharge trough can slide inside the discharge trough.

[0010] Preferably, it further comprises a closing component, wherein the closing component comprises: There are four movable plates in total. The four movable plates are respectively arranged at both ends of the recycling box. The adjacent ends of the two movable plates on the same side of the recycling box are respectively provided with semicircular grooves. The two semicircular grooves can form a circular groove with the same diameter as the diameter of the part to be processed; The movable block corresponds to the ends of the four movable plates. The movable block can move up and down along the vertical line direction under the drive of the driving source. The movable block is connected to a connecting seat. The connecting seat and the movable plate are connected at positions with threaded holes. The movable block and the movable plate are connected by bolts.

[0011] Preferably, it also includes: A sliding rod, fixedly connected to the outer wall of the recycling box, and the movable block is slidably connected to the sliding rod; There are four racks, which are respectively connected to one side of the four movable blocks, wherein the teeth on two racks on adjacent sides are arranged adjacent to each other.

[0012] Preferably, it also includes: A driving rod is installed at the rear end of the recycling box, the rear end of the recycling box is connected to a rotating seat, the middle part of the driving rod is rotatably connected to the rotating seat, the two ends of the driving rod are connected to a first gear, the two first gears are respectively meshed with the teeth on the inner side of the two racks at the two ends of the recycling box, and the middle part of the driving rod is connected to a second gear; The motor is fixedly mounted on the outer wall of the recycling box, and the output end of the motor is connected to a third gear, and the third gear is meshed with the second gear.

[0013] In another aspect, the present invention provides a method for using a CNC machine tool with a waste recovery structure, comprising the following steps: S1. The recycling box moves to the end away from the chuck, and clamps one end of the part to be processed on the chuck; S2, the recycling box slides from one end of the part to the position of the part to be processed, and then the tool approaches the part, and finally the chuck rotates under the drive source to perform turning processing; S3. During the processing, the circulation pump creates negative pressure in the negative pressure chamber of the recovery box; S4. The chips generated by part turning are sucked into the negative pressure chamber under the action of negative pressure.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. By setting a recycling box outside the part, when the part is turned, high-pressure gas and negative pressure are generated by the circulating pump, wherein the high-pressure gas is transported to the inside of the blowing nozzle, and then the blowing nozzle blows the high-pressure gas to the position where the part contacts the tool, thereby blowing the turning debris into the channel. Since the negative pressure tube at one end of the circulating pump forms a negative pressure inside the negative pressure chamber, the debris in the channel is sucked into the negative pressure chamber under the action of the negative pressure, thereby achieving the effect of collecting the debris, avoiding the debris from splashing around and staying in the machine tool, thereby eliminating the cleaning step.

[0015] 2. Through the action of the arc plate, when the debris of the parts is sucked into the negative pressure chamber, the debris can be guided by the arc at the bottom of the arc plate and directed to the lower part of the upper surface of the inclined plate, thereby preventing the debris from flowing back from the channel.

[0016] 3. The third gear is driven by the motor, and then the third gear drives the second gear to rotate, so that the driving rod rotates, and the first gears at both ends of the driving rod drive the rack to move, so that the four movable plates can move up and down synchronously. When the two movable plates are close to each other, the two ends of the recycling box can be closed, so that a relatively closed space is formed inside the recycling box, thereby generating greater suction to effectively absorb the debris generated by parts processing and avoid splashing.

[0017] 4. By setting a detachable movable plate, movable plates with different semicircular groove opening sizes can be installed on the movable block according to the diameter of the parts, which has stronger adaptability.

[0018] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 This is the appearance diagram of the present invention; Figure 2It is a three-dimensional diagram of the present invention when the left movable door is opened; Figure 3 A three-dimensional diagram of the present invention when the movable doors on the left and right sides are opened; Figure 4 It is a side sectional view of the whole of the present invention; Figure 5 is a three-dimensional diagram of the recycling box of the present invention; Figure 6 is a three-dimensional cross-sectional view of the recycling box of the present invention; Figure 7 is a side sectional view of the recycling box of the present invention; Figure 8 A schematic diagram of the state change of the sealing component of the present invention; Fig. 9 is a three-dimensional diagram of a closing plate of the present invention; Fig.10 A first state diagram of the recycling box and parts of the present invention; Fig.11 A second state diagram of the recycling box and parts of the present invention; Fig.12 This is a third state diagram of the recycling box and parts of the present invention.

[0020] The reference numerals are as follows: 1. Machine tool; 101. Movable door; 102. Control panel; 103. Chuck; 104. Tool holder; 105. Tool; 2. Parts; 3. Recovery box; 301. Circulation pump; 302. Positive pressure pipe; 303. Negative pressure pipe; 304. Negative pressure chamber; 305. Channel; 306. Blowing nozzle; 307. Inclined plate; 308. Arc plate; 309. Discharge chute; 310. Opening; 311. Discharge chute; 401. Movable plate; 402. Connecting seat; 403. Rack; 404. Threaded hole; 405. Movable block; 406. Slide rod; 407. Drive rod; 408. First gear; 409. Rotating seat; 410. Second gear; 411. Motor; 412. Third gear. DETAILED DESCRIPTION

[0021] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0022] Example 1: See Figure 1-Figure 12 This embodiment provides a CNC machine tool with a waste recycling structure, which can recycle the debris generated during the processing of the part 2. The CNC machine tool with a waste recycling structure includes the following parts: like Figure 1 , Figure 2The machine tool 1 shown can be fixedly installed on the floor of a factory building by means of a base and connecting parts such as bolts. The interior of the machine tool 1 is a processing space. An operation port is provided on the front of the machine tool 1. Two movable doors 101 are installed on the front of the operation port. The two movable doors 101 are slidably installed on the front end of the machine tool 1. In order to prevent the movable doors 101 from falling off, a track matching the movable doors 101 is provided on the front end of the machine tool 1. The ends of the movable doors 101 slide in the track. The control panel 102 is installed on the outer wall of one of the movable doors 101. In order to facilitate the operator to control the control panel 102, a hinge seat is installed on the movable door 101, so that the upper and lower ends of the control panel 102 can be hinged with the hinge seat, so that the control panel 102 can rotate around the hinge axis of the hinge seat, so as to adjust the placement angle of the control panel 102; like Figure 3 The chuck 103 shown is installed at one end of the machine tool 1 and is used to clamp one end of the part 2 to be processed. The chuck 103 has four clamping claws, which can firmly clamp the part 2 to prevent the part from loosening during the processing; like Figure 3 The tool rest 104 shown is installed at the bottom of the inner wall of the machine tool 1, and a tool 105 is installed on the tool rest 104. When the chuck 103 is driven by the driving device to rotate, the tool 105 can turn the surface of the part to form the part 2 into a desired shape.

[0023] In order to achieve the effect of collecting the chips formed by turning, a recovery box 3 is also provided inside the machine tool 1, and the recovery box 3 includes the following parts: like Figure 5 , Figure 6 The circulating pump 301 shown is fixedly mounted on the outer wall of the recovery box 3, and the outlet end and negative pressure end of the circulating pump 301 are respectively equipped with a positive pressure pipe 302 and a negative pressure pipe 303, wherein the positive pressure pipe 302 outputs high-pressure gas, and the negative pressure pipe 303 is used to inhale gas, so that a negative pressure space is formed in a specific sealed space; like Figure 7The negative pressure chamber 304 and the channel 305 are respectively formed inside the recovery box 3, and a circular opening is opened at one end of the negative pressure chamber 304. One end of the negative pressure tube 303 is inserted into the negative pressure chamber 304 from the circular opening, so that when the circulation pump 301 is working, the gas in the negative pressure chamber 304 can be extracted through the negative pressure tube 303, so that a negative pressure is formed in the negative pressure chamber 304. In order to prevent the negative pressure tube 303 from directly extracting the debris generated by the processing of the part 2, the negative pressure chamber 304 is provided with a negative pressure tube 303. A filter is installed at the position where the cavity 304 is connected to the negative pressure cavity 304. The aperture of the filter is smaller than the diameter of the debris, so the debris can be blocked outside the filter and remain in the negative pressure cavity 304. The channel 305 is located below the negative pressure cavity 304, and the shape of the inner wall of the channel 305 matches the shape of the part 2. Since the part 2 to be turned is cylindrical, the shape of the inner wall of the channel 305 is also a circle that matches the outer wall of the part 2, and the channel 305 is tangent to the side wall of the negative pressure cavity 304. like Figure 7 The blowing nozzle 306 shown is installed on the inner wall of the recovery box 3. The position of the blowing nozzle 306 and the position of the negative pressure chamber 304 are respectively located on the two inner walls of the recovery box 3. The positions of the two are located above the front and rear sides of the part 2. An air inlet is opened on the top of the blowing nozzle 306. One end of the positive pressure pipe 302 is fixedly connected to the air inlet, so that the gas output by the circulation pump 301 can enter the blowing nozzle 306. It should be noted that the middle section of the positive pressure pipe 302 is arranged in the upper wall of the recovery box 3. like Figure 7 The opening 310 shown is provided at one end of the recycling box 3 close to the tool 105, so that the tool 105 can be inserted into the recycling box 3, thereby turning the part 2; It should be noted that, in this embodiment, both ends of the recovery box 3 are through-set (both ends of the negative pressure chamber 304 are closed), so that the recovery box 3 can be sleeved on the outer wall of the part 2 from the end of the part 2 away from the chuck 103, and the recovery box 3 can slide in the axial direction of the part 2, so as to collect the debris generated by the turning process of the part 2; In the above scheme, a recovery box 3 is set on the outside of the part 2, and when the part 2 is turned, high-pressure gas and negative pressure are generated by the circulating pump 301, wherein the high-pressure gas is transported to the inside of the blowing nozzle 306, and then the blowing nozzle 306 blows the high-pressure gas to the position where the part 2 contacts the tool 105, thereby blowing the turning chips into the channel 305. Since the negative pressure tube 303 at one end of the circulating pump 301 forms a negative pressure inside the negative pressure chamber 304, the chips located in the channel 305 are sucked into the negative pressure chamber 304 under the action of the negative pressure, thereby achieving the effect of collecting the chips, avoiding the chips from splashing around and staying in the machine tool 1, thereby eliminating the cleaning step.

[0024] Embodiment 2: Figure 6 , Figure 7 As shown, the technical solution of this embodiment is different from that of the first embodiment in that both ends of the recycling box 3 are closed, and a circular groove is opened in the middle of the closing plate. The inner diameter of the circular groove is larger than the outer diameter of the part 2 to be processed. Through the circular groove, the recycling box 3 can also be mounted on the outer wall of the part 2 from one end of the part 2 and slide in the axial direction of the part 2.

[0025] Embodiment 3: Figure 7 As shown, the technical solution of this embodiment is different from that of the second embodiment in that it includes the following parts: The inclined plate 307 is connected to the inner wall of the negative pressure chamber 304, and a gap is formed between one end of the inclined plate 307 and the inner wall of the negative pressure chamber 304, and the gap can allow the debris from the processing of the part 2 to pass through; The arc plate 308 is located above the gap, and one end of the arc plate 308 is fixed to the inside of the negative pressure chamber 304. When the debris of the part 2 is sucked into the negative pressure chamber 304, the debris can be guided by the arc at the bottom of the arc plate 308 to the lower part of the upper surface of the inclined plate 307, thereby preventing the debris from flowing back from the channel 305. The discharge trough 309 is connected to one end of the inclined plate 307 and penetrates into the negative pressure chamber 304. The inner wall of the machine tool 1 is connected to a discharge trough 311. The discharge trough 309 can slide inside the discharge trough 311. It should be noted that an electric slide rail is installed on the top of the recovery box 3 so that the recovery box 3 can move synchronously with the turning position of the tool 105 .

[0026] Embodiment 4: Figure 8 , Fig. 9 As shown, the technical solution of this embodiment is different from that of the third embodiment in that a closing component is provided to close both ends of the recycling box 3 to ensure that the negative pressure inside the recycling box 3 can suck the debris of the part 2 into the negative pressure chamber 304. The closing component includes: There are four movable plates 401 in total. The four movable plates 401 are respectively arranged at both ends of the recycling box 3. The adjacent ends of the two movable plates 401 on the same side of the recycling box 3 are respectively provided with semicircular grooves, and the two semicircular grooves can form a circular groove with the same diameter as the diameter of the part 2 to be processed; The movable block 405 corresponds to the ends of the four movable plates 401. The movable block 405 can move up and down along the vertical line under the drive of the driving source. The movable block 405 is connected to the connecting seat 402. The connecting seat 402 is provided with threaded holes 404 at the positions connected with the movable plates 401. The movable block 405 and the movable plates 401 are connected by bolts, so that the movable plates 401 with different semicircular groove opening sizes can be replaced according to the parts 2 with different diameters, so as to adapt to the parts 2 with different diameters. The slide bar 406 is fixedly connected to the outer wall of the recycling box 3, and the movable block 405 is slidably connected to the slide bar 406; There are four racks 403, which are connected to one side of the four movable blocks 405 respectively, wherein the teeth on two racks 403 on adjacent sides are arranged adjacent to each other; The driving rod 407 is installed at the rear end of the recycling box 3. The rear end of the recycling box 3 is connected to a rotating seat 409. The middle part of the driving rod 407 is rotatably connected to the rotating seat 409. The two ends of the driving rod 407 are connected to a first gear 408. The two first gears 408 are respectively meshed with the teeth on the inner side of the two racks 403 at the two ends of the recycling box 3. The middle part of the driving rod 407 is connected to a second gear 410; The motor 411 is fixedly mounted on the outer wall of the recovery box 3, and the output end of the motor 411 is connected to the third gear 412, and the third gear 412 is meshed with the second gear 410; In the above scheme, the third gear 412 is driven by the motor 411, and then the third gear 412 drives the second gear 410 to rotate, so that the driving rod 407 rotates, and the first gears 408 at both ends of the driving rod 407 drive the rack 403 to move, so that the four movable plates 401 can move up and down synchronously. When the two movable plates 401 are close to each other, the two ends of the recycling box 3 can be closed, so that a relatively closed space is formed inside the recycling box 3, thereby generating a greater suction force to effectively absorb the debris generated by the processing of the part 2 to avoid splashing.

[0027] Embodiment 5: The technical solution of this embodiment is different from that of Embodiment 4 in that this embodiment provides a method for using a CNC machine tool with a waste recovery structure, which comprises the following steps: S1, the recovery box 3 moves to one end away from the chuck 103, and clamps one end of the part 2 to be processed on the chuck 103; S2, the recycling box 3 slides from one end of the part 2 to the position to be processed of the part 2, and then the tool 105 approaches the part 2, and finally the chuck 103 rotates under the drive of the driving source to perform turning processing; S3. During the processing, the circulation pump 301 allows the negative pressure chamber 304 of the recovery box 3 to form a negative pressure; S4. The chips generated by the turning of the part 2 are sucked into the negative pressure chamber 304 under the action of negative pressure.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A CNC machine tool with a waste recovery structure, comprising a machine tool (1), a chuck (103) and a tool holder (104), wherein the chuck (103) is mounted at one end inside the machine tool (1) and is used to clamp one end of a part (2) to be processed, and a tool (105) is mounted on the tool holder (104), and when the chuck (103) is driven by a driving device to rotate, the tool (105) can turn the surface of the part to form the part (2) into a desired shape; It is characterized in that Also includes: A recovery box (3) is sleeved and mounted on the outer wall of the component (2); A circulation pump (301), the circulation pump (301) being fixedly mounted on the outer wall of the recovery box (3), and a positive pressure pipe (302) and a negative pressure pipe (303) being mounted on the air outlet end and the negative pressure end of the circulation pump (301), respectively; A negative pressure chamber (304) and a channel (305), wherein the negative pressure chamber (304) and the channel (305) are respectively formed inside the recovery box (3), and a circular opening is provided at one end of the negative pressure chamber (304), and one end of the negative pressure tube (303) is inserted into the negative pressure chamber (304) through the circular opening, so that when the circulation pump (301) is working, the gas in the negative pressure chamber (304) can be extracted through the negative pressure tube (303), so that a negative pressure is formed in the negative pressure chamber (304); The channel (305) is located below the negative pressure chamber (304), and the shape of the inner wall of the channel (305) matches the shape of the part (2), wherein the debris generated by the part (2) being cut by the tool (105) is sucked into the negative pressure chamber (304) under the action of negative pressure, thereby collecting the debris.

2. A CNC machine tool with a waste recovery structure as claimed in claim 1, characterized in that: Also includes: The air blowing nozzle (306) is installed on the inner wall of the recovery box (3). The position of the air blowing nozzle (306) and the position of the negative pressure chamber (304) are respectively located on the two inner walls of the recovery box (3). The positions of the two are located above the front and rear sides of the part (2). An air inlet is opened at the top of the air blowing nozzle (306). One end of the positive pressure tube (302) is fixedly connected to the air inlet, so that the gas output by the circulation pump (301) can enter the air blowing nozzle (306).

3. A CNC machine tool with a waste recovery structure as claimed in claim 1, characterized in that: Also includes: An opening (310) is provided at one end of the recycling box (3) close to the tool (105) and is used to allow the tool (105) to extend into the recycling box (3) so as to perform turning processing on the part (2).

4. A CNC machine tool with a waste recovery structure as claimed in claim 1, characterized in that: The two ends of the recovery box (3) are closed, and a circular groove is provided in the middle of the closed plate. The inner diameter of the circular groove is larger than the outer diameter of the part (2) to be processed. Through the circular groove, the recovery box (3) can also be sleeved on the outer wall of the part (2) from one end of the part (2) and slide in the axial direction of the part (2).

5. A CNC machine tool with a waste recovery structure as claimed in claim 1, characterized in that: Also includes: an inclined plate (307) connected to the inner wall of the negative pressure chamber (304), wherein a gap is formed between one end of the inclined plate (307) and the inner wall of the negative pressure chamber (304), the gap being used to allow debris from machining the part (2) to pass through; The arc-shaped plate (308) is located above the gap, and one end of the arc-shaped plate is fixed to the inside of the negative pressure chamber (304). Through the action of the arc-shaped plate (308), when the debris of the part (2) is sucked into the negative pressure chamber (304), the debris can be guided by the arc at the bottom of the arc-shaped plate (308) and introduced into the lower part of the upper surface of the inclined plate (307).

6. A CNC machine tool with a waste recovery structure as claimed in claim 5, characterized in that: Also includes: A discharge chute (309) is connected to one end of the inclined plate (307) and penetrates into the interior of the negative pressure chamber (304); an inner wall of the machine tool (1) is connected to a discharge chute (311); and the discharge chute (309) is capable of sliding inside the discharge chute (311).

7. A CNC machine tool with a waste recovery structure as claimed in claim 1, characterized in that: Also included is a closure assembly, the closure assembly comprising: There are four movable plates (401) in total. The four movable plates (401) are respectively arranged at two ends of the recycling box (3). The adjacent ends of two movable plates (401) on the same side of the recycling box (3) are respectively provided with semicircular grooves, and the two semicircular grooves can form a circular groove with the same diameter as the diameter of the part to be processed (2); A movable block (405) corresponds to the ends of the four movable plates (401); the movable block (405) can move up and down along a vertical line when driven by a driving source; a connecting seat (402) is connected to the movable block (405); threaded holes (404) are provided at positions of the connecting seat (402) that are connected to the movable plates (401); and the movable block (405) and the movable plates (401) are connected by bolts.

8. A CNC machine tool with a waste recovery structure as claimed in claim 7, characterized in that: Also includes: A sliding rod (406) is fixedly connected to the outer wall of the recycling box (3), and the movable block (405) is slidably connected to the sliding rod (406); There are four racks (403) connected to one side of the four movable blocks (405) respectively, wherein the teeth on two racks (403) on adjacent sides are arranged adjacent to each other.

9. A CNC machine tool with a waste recovery structure as claimed in claim 8, characterized in that: Also includes: A driving rod (407) is mounted on the rear end of the recycling box (3); the rear end of the recycling box (3) is connected to a rotating seat (409); the middle portion of the driving rod (407) is rotatably connected to the rotating seat (409); both ends of the driving rod (407) are connected to first gears (408); the two first gears (408) are respectively meshed with teeth on the inner side of two racks (403) at both ends of the recycling box (3); and the middle portion of the driving rod (407) is connected to a second gear (410); The motor (411) is fixedly mounted on the outer wall of the recovery box (3); the output end of the motor (411) is connected to a third gear (412); and the third gear (412) is meshed with the second gear (410).

10. A method for using a CNC machine tool with a waste recycling structure as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the recovery box (3) moves to an end away from the chuck (103), and clamps one end of the part (2) to be processed on the chuck (103); S2, the recovery box (3) slides from one end of the part (2) to the position to be processed of the part (2), and then the tool (105) approaches the part (2), and finally the chuck (103) rotates under the drive of the driving source to perform turning processing; S3. During the processing, the circulation pump (301) causes the negative pressure chamber (304) of the recovery box (3) to form a negative pressure; S4. The chips generated by turning the part (2) are sucked into the negative pressure chamber (304) under the action of negative pressure.

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