CN114571260A

CN114571260A - Positioning device for manufacturing of numerical control machine tool

Info

Publication number: CN114571260A
Application number: CN202210288956.0A
Authority: CN
Inventors: 王昌国
Original assignee: Haian Guoyang Machinery Technology Co ltd
Current assignee: Haian Guoyang Machinery Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-06-03

Abstract

The invention belongs to the technical field of machine manufacturing, and particularly relates to a positioning device for manufacturing a numerical control machine tool, which comprises a machine tool platform; the bottom end of the machine tool platform is fixedly connected with a supporting leg; the top end of the machine tool platform is provided with a positioning groove; a positioning block is arranged in the middle of the positioning groove; a plurality of groups of ventilation grooves are formed in the top end of the positioning block; the positioning block is connected with the positioning groove through a telescopic rod; a first sliding groove is formed in the middle of the bottom end of the positioning groove; the positioning block slides in the first sliding groove; the bottom end of the telescopic rod is fixedly connected inside the first sliding chute; through utilizing the air current to the drive of dust, reduce the piling up of dust on the locating piece, improve the frictional force in the article processing, strengthen fixed effect, provide a stable operational environment for the processing of article.

Description

Positioning device for manufacturing of numerical control machine tool

Technical Field

The invention belongs to the technical field of machine manufacturing, and particularly relates to a positioning device for manufacturing of a numerical control machine tool.

Background

The numerical control machine tool is an intelligent automatic machine tool in modern society, and the auxiliary of repeated simple work is completed through a coding program, so that the working efficiency is improved.

The chinese patent with the publication number CN214559059U discloses a detachable positioning device for a numerical control machine, which comprises a machine tool and a guide rod, wherein the right side of the machine tool is provided with a crank, one end of the crank is fixedly connected with a driving gear, the outer surface of the driving gear is connected with a driven gear, the other ends of the driven gear and the driving gear are both connected with a bidirectional screw rod, the other end of the bidirectional screw rod is connected with a bearing, the outer surface of the bidirectional screw rod is connected with a sleeve, a clamping groove is arranged in the sleeve, a clamping block is connected to the clamping groove, and a clamping piece is connected to the clamping block.

In the prior art, when the numerical control machine tool is used for processing an object, the object is clamped by the clamp, so that the shaking in the processing process is reduced, and dust is accumulated on the clamping device in long-time work to influence the clamped object.

Therefore, the invention provides a positioning device for manufacturing of a numerical control machine tool.

Disclosure of Invention

To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.

The technical scheme adopted by the invention for solving the technical problem is as follows: the invention relates to a positioning device for manufacturing a numerical control machine tool, which comprises a machine tool platform; the bottom end of the machine tool platform is fixedly connected with a supporting leg; the top end of the machine tool platform is provided with a positioning groove; a positioning block is arranged in the middle of the positioning groove; a plurality of groups of ventilation grooves are formed in the top end of the positioning block; the positioning block is connected with the positioning groove through a telescopic rod; during operation, the dust is driven by the airflow, the accumulation of the dust on the positioning block is reduced, the friction force in the processing of the object is improved, the fixing effect is enhanced, and a stable working environment is provided for the processing of the object.

Preferably, the middle part of the bottom end of the positioning groove is provided with a first sliding groove; the positioning block slides in the first sliding groove; the bottom end of the telescopic rod is fixedly connected inside the first sliding chute; the bottom end of the positioning groove is positioned at two sides of the first sliding groove and is provided with a second sliding groove; a first rotating shaft is hinged to the side wall of the second sliding groove close to the first sliding groove; the first rotating shaft is connected with the second sliding groove through a torsion spring; a positioning plate is fixedly connected to the side wall of the first rotating shaft; a first connecting rope is fixedly connected to the bottom end of the positioning block; the other end of the first connecting rope is wound on the first rotating shaft; during operation, utilize reciprocating of locating piece, can make the locating plate further carry out the centre gripping to the article, improve the stability of article, keep the holding power of four directions in the course of working, reduce because of the article slides and lead to appearing the flaw in the course of working, cause the damage of article.

Preferably, a plurality of groups of third sliding grooves are formed in the top end of the positioning plate; a plurality of groups of scraping plates are fixedly connected to the bottom end of the second sliding chute at the position of the third sliding chute; the scraping plate slides in the third sliding groove; the top end of the scraping plate is herringbone and has elasticity; one side of the top end of the scraping plate is fixedly connected with a first magnet; the other side of the top end of the scraping plate is fixedly connected with a second magnet; the first magnet and the second magnet are attracted by magnetic force; during operation, the Y-shaped fork that utilizes to strike off the board top can further scrape off the clearance to the dust that exists on the locating plate top, reduces piling up of dust, reduces the dust and piles up and leave the gap when leading to follow-up when carrying out the centre gripping to the article and by between the centre gripping thing, causes the slip, influences the machining precision.

Preferably, the top end of the scraping plate is positioned on the side wall of the herringbone fork and is hinged with a pair of supporting rods; the top ends of the supporting rods are connected through a second rotating shaft; the support rod is connected with the second rotating shaft through a torsion spring; the top end of the second rotating shaft is fixedly connected with a propelling block; the during operation utilizes a pair of bracing piece self inclination can guide No. three spouts to pass and strike off the board, reduces the condition that the skew appears, and the supporting effect of torsional spring can make the herringbone branching that strikes off the board top further laminate on the locating plate top simultaneously, strengthens follow-up effect of striking off to the dust.

Preferably, the side wall of the supporting rod is provided with a No. four sliding groove; a connecting rod is connected between the pair of the fourth sliding grooves in a sliding manner; a fifth sliding groove is formed in the side wall of the fourth sliding groove; a cam is arranged in the fifth sliding groove; a sixth sliding groove is formed in the side wall of the fourth sliding groove; the cam slides in the No. six sliding groove; the during operation utilizes the collision that No. six spouts rotated the production, can produce certain vibrations effect, sends the bracing piece and strikes off the dust that exists on the board and arrive, reduces piling up of dust, increases the stability in the equipment course of operation, reduces the dust and piles up the card that causes and pause.

Preferably, the herringbone forks at the top end of the scraping plate are arranged in a sectional manner; a third rotating shaft is hinged to the top between each pair of scraping plates; the third rotating shaft is connected with the scraping plate through a torsion spring; the during operation utilizes the cooperation of No. three pivots and torsional spring, can further make to strike off the board laminating on the locating plate top, increases and strikes off the whole elasticity of board, increases and strikes off the dynamics of striking off of board tip to locating plate top dust, reduces piling up of dust, increases the stability of article processing.

Preferably, each pair of the scraping plates is provided with a seven-size sliding chute on the side wall; the side walls of the interior of the pair of the seventh chutes are fixedly connected with a first elastic rope; the during operation utilizes the elasticity of an elastic rope, can further increase and strike off the whole elasticity of board, and supplementary striking off the board and break away from No. three spouts smoothly, and supplementary striking off the board simultaneously resets, reduces to strike off the board and appears deformation and cause the skew, influences the normal No. two spouts that get into of locating plate.

Preferably, a pair of squeezing balls is fixedly connected to the side wall of the first elastic rope; a plurality of groups of eighth sliding grooves are formed in the side wall of the scraping plate; the eighth sliding groove is communicated with the seventh sliding groove; a first ash cleaning plate is connected inside the eighth sliding chute in a sliding manner; the extrusion ball is connected with the first ash cleaning plate through a second connecting rope; the first ash removing plate is connected with the eighth sliding chute through a second elastic rope; during operation, the contact of the eighth sliding groove and the top end of the positioning plate is utilized, dust on the top end of the positioning plate can be further cleaned, dust accumulation on the top end of the positioning plate is reduced, and processing and fixing of subsequent objects are influenced.

Preferably, the side wall of the connecting rod is provided with a wave groove; the wave groove is in contact with the cam; during operation utilizes the cooperation between wave groove and the No. six spout, can further make No. six spouts beat, produces vibrations effect, further loosens the clearance to the dust, reduces piling up of dust.

Preferably, a plurality of groups of second-number ash cleaning plates are fixedly connected to the side wall of the bottom end of the herringbone fork at the top end of the scraping plate; the during operation utilizes No. two dust boards of multiunit to strike off the extra of dust, can further get rid of the dust, reduces piling up of dust on the locating plate, for follow-up centre gripping to the article provides help, increases the centre gripping stability.

The invention has the following beneficial effects:

1. according to the manufacturing and positioning equipment of the numerical control machine tool, the dust is driven by the airflow, so that the accumulation of the dust on the positioning block is reduced, the friction force in the processing of the object is improved, the fixing effect is enhanced, and a stable working environment is provided for the processing of the object.

2. According to the numerical control machine manufacturing positioning equipment, the positioning plate can further clamp the object by utilizing the up-and-down movement of the positioning block, so that the stability of the object is improved, the supporting force in four directions in the machining process is kept, and the damage to the object caused by the defect in the machining process due to the sliding of the object is reduced.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a cross-sectional view of a doctoring plate of the present invention;

FIG. 4 is a cross-sectional view of a support pole of the present invention;

fig. 5 is a schematic view of the construction of the scraping plate of the present invention;

FIG. 6 is a schematic structural view of the second embodiment;

in the figure: 1. a machine tool platform; 11. a support leg; 12. positioning a groove; 13. positioning blocks; 14. a ventilation slot; 2. a first chute; 21. a telescopic rod; 22. a second chute; 23. positioning a plate; 24. a first rotating shaft; 25. a first connecting rope; 3. a third sliding chute; 31. scraping the plate; 32. a first magnet; 33. a magnet II; 4. a support bar; 41. a second rotating shaft; 42. a propulsion block; 5. a fourth sliding chute; 51. a connecting rod; 52. a fifth chute; 53. a cam; 54. a sixth chute; 6. a third rotating shaft; 7. a No. seven sliding chute; 71. an elastic rope I; 8. extruding the ball; 81. a No. eight chute; 82. a first dust removing plate; 83. a second connecting rope; 84. a second elastic rope; 9. a wave groove; 101. and a second dust removing plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

As shown in fig. 1 to fig. 2, a positioning apparatus for manufacturing a numerically-controlled machine tool according to an embodiment of the present invention includes a machine tool platform 1; the bottom end of the machine tool platform 1 is fixedly connected with a supporting leg 11; the top end of the machine tool platform 1 is provided with a positioning groove 12; a positioning block 13 is arranged in the middle of the positioning groove 12; a plurality of groups of ventilation grooves 14 are formed in the top end of the positioning block 13; the positioning block 13 is connected with the positioning groove 12 through a telescopic rod 21; during operation, fix the article at constant head tank 12 and locating piece 13, telescopic link 21 of installation on locating piece 13 bottom can be behind the article centre gripping, through telescopic link 21 to the lift of locating piece 13, can make the air current pass through from ventilation groove 14, utilize the air current to clear away partial dust, utilize the air current to the drive of dust, reduce the dust and pile up on locating piece 13, improve the frictional force in the article processing, strengthen fixed effect, provide a stable operational environment for the processing of article.

As shown in fig. 2, a first sliding groove 2 is formed in the middle of the bottom end of the positioning groove 12; the positioning block 13 slides in the first sliding groove 2; the bottom end of the telescopic rod 21 is fixedly connected inside the first sliding chute 2; the bottom end of the positioning groove 12 is positioned at two sides of the first sliding groove 2 and is provided with a second sliding groove 22; a first rotating shaft 24 is hinged to the side wall of the second sliding groove 22 close to the first sliding groove 2; the first rotating shaft 24 is connected with the second sliding groove 22 through a torsion spring; a positioning plate 23 is fixedly connected to the side wall of the first rotating shaft 24; a first connecting rope 25 is fixedly connected to the bottom end of the positioning block 13; the other end of the first connecting rope 25 is wound on the first rotating shaft 24; during operation, when locating piece 13 receives the propelling movement of telescopic link 21 to carry out the rebound, connect rope 25 can stimulate pivot 24 No. one and rotate, drive locating plate 23 and article lateral wall and contact, carry out the secondary and fix, simultaneously after processing to the commodity price, telescopic link 21 drives locating piece 13 and retrieves, pivot 24 drives locating plate 23 under the torsional spring effect and gets back to No. two spout 22 again, utilize reciprocating of locating piece 13, can make locating plate 23 further carry out the centre gripping to the article, improve the stability of article, keep the holding power of four directions in the course of working, reduce because of the article slides and lead to the flaw to appear in the course of working, cause the damage of article.

As shown in fig. 3, a plurality of sets of No. three sliding grooves 3 are formed at the top end of the positioning plate 23; a plurality of groups of scraping plates 31 are fixedly connected to the bottom end of the second sliding chute 22 at the position of the third sliding chute 3; the scraping plate 31 slides in the third chute 3; the top end of the scraping plate 31 is herringbone and has elasticity; a first magnet 32 is fixedly connected to one side of the top end of the scraping plate 31; a second magnet 33 is fixedly connected to the other side of the top end of the scraping plate 31; the first magnet 32 and the second magnet 33 are attracted by magnetic force; during operation, when locating plate 23 upwards rotates and moves, scrape off board 31 top herringbone branch and can contact locating plate 23 top, simultaneously because of locating plate 23's removal, can scrape off board 31 and break away from No. three spout 3 gradually, after article processing is accomplished, locating plate 23 gets back to No. two spout 22 insides again under the rotation of pivot 24, make and strike off board 31 and pass No. three spout 3 and get back to locating plate 23 top again, under the effect that a magnet 32 and No. two magnet 33 magnetic force attract each other, make multiunit scrape off board 31 tip and be close to each other, utilize the herringbone branch on scraping off board 31 top can further scrape off the clearance to the dust that exists on locating plate 23 top, reduce piling up of dust, reduce dust and pile up and leave the gap when leading to follow-up to carry out the centre gripping to the article and between the centre gripping thing, cause the slip, influence machining precision.

As shown in fig. 3, a pair of support rods 4 are hinged to the top end of the scraping plate 31 on the side wall of the herringbone fork; the top ends of the support rods 4 are connected through a second rotating shaft 41; the support rod 4 is connected with the second rotating shaft 41 through a torsion spring; a pushing block 42 is fixedly connected to the top end of the second rotating shaft 41; the during operation, when locating plate 23 centre gripping was accomplished the rotatory removal downwards, a pair of bracing piece 4 takes the lead into No. three spout 3, guide, the torsional spring of installation can support scraping board 31 between bracing piece 4 and No. two pivot 41, utilize a pair of bracing piece 4 self inclination can guide No. three spout 3 and pass scraping board 31, reduce the condition that the skew appears, the supporting effect of torsional spring can make the herringbone branching that scrapes board 31 top further laminate on locating plate 23 top simultaneously, strengthen the follow-up effect of scraping to the dust.

As shown in fig. 3 to 4, a fourth sliding groove 5 is formed on the side wall of the support rod 4; a connecting rod 51 is connected between the pair of the fourth sliding chutes 5 in a sliding manner; a fifth sliding groove 52 is formed in the side wall of the fourth sliding groove 5; a cam 53 is arranged inside the fifth sliding groove 52; a sixth sliding groove 54 is formed in the side wall of the fourth sliding groove 5; the cam 53 slides inside the No. six chute 54; the during operation, when locating plate 23 swivelling movement that makes progress, a pair of bracing piece 4 can receive the extrusion and draw close each other, connecting rod 51 can move in No. four spout 5 insides this moment, make cam 53 rotate, produce the collision, utilize No. six spout 54 to rotate the collision that produces, can produce certain vibrations effect, send to the bracing piece 4 and strike off the dust that exists on the board 31, reduce piling up of dust, increase the stability of equipment course of operation, it is pause to reduce the card that the dust is piled up and is caused.

As shown in fig. 5, the chevron-shaped bifurcation at the top end of the scraping plate 31 is arranged in a sectional manner; a third rotating shaft 6 is hinged to the top between each pair of scraping plates 31; the third rotating shaft 6 is connected with the scraping plate 31 through a torsion spring; the during operation, the removal in-process segmentation that strikes off board 31 sets up the connection of cooperation torsional spring, can make to strike off

board

31 and 23 tops of locating plate and contact, strike off the dust, utilize the cooperation of No. three pivot 6 and torsional spring, can further make to strike off board 31 laminating on 23 tops of locating plate, increase and strike off board 31 whole elasticity, increase and strike off the dynamics of striking off of board 31 tip to 23 tops of locating plate dust, reduce piling up of dust, increase the stability of article processing.

As shown in fig. 5, a seventh chute 7 is formed on the side wall of each pair of scraping plates 31; a first elastic rope 71 is fixedly connected to the side walls of the interior of each of the seven sliding grooves 7; during operation, after scraping board 31 and receiving locating plate 23 upward rotation movement's pressure, elastic rope 71 is the extension of deformation under the influence of the extrusion force, conveniently scrape board 31 and break away from No. 3 spouts smoothly, utilize the elasticity of elastic rope 71, can further increase and scrape the whole elasticity of board 31, supplementary board 31 of scraping breaks away from No. 3 spouts smoothly, supplementary board 31 of scraping resets simultaneously, reduce and scrape board 31 and appear deformation and cause the skew, influence locating plate 23 and normally get into No. two spouts 22.

As shown in fig. 5, a pair of squeeze balls 8 is fixedly connected to the side wall of the first elastic rope 71; a plurality of groups of eight sliding grooves 81 are formed in the side wall of the scraping plate 31; the eighth sliding groove 81 is communicated with the seventh sliding groove 7; a first ash cleaning plate 82 is connected inside the eighth sliding chute 81 in a sliding manner; the extrusion ball 8 is connected with the first ash cleaning plate 82 through a second connecting rope 83; the first ash cleaning plate 82 is connected with the eighth sliding chute 81 through a second elastic rope 84; during operation, when striking off board 31 and receiving the thrust upwards of locating plate 23, elastic rope 71 deformation drives squeeze ball 8 and removes, make squeeze ball 8 contact No. eight spout 81, with the outside propelling movement of No. eight spout 81, contact with locating plate 23 top, after striking off board 31 and reseing, squeeze ball 8 drives No. two and connects No. 83 cooperation No. two elastic ropes 84 with No. eight spout 81 resets, utilize the contact on No. eight spout 81 and locating plate 23 top, can further clear up locating plate 23 top dust, it piles up to reduce the dust on locating plate 23 top, the processing of influence follow-up article is fixed.

As shown in fig. 4, the side wall of the connecting rod 51 is provided with a wave groove 9; the wave groove 9 is contacted with the cam 53; during operation, at connecting rod 51's removal in-process, the wave groove 9 of seting up can make No. six spout 54 cooperate the rotation of No. six spout 54, drives No. six spout 54 and beats, utilizes the cooperation between wave groove 9 and No. six spout 54, can further make No. six spout 54 beat, produces vibrations effect, further loosens the clearance to the dust, reduces piling up of dust.

Example two

As shown in fig. 6, a first comparative example, in which another embodiment of the present invention is: a plurality of groups of second-number ash cleaning plates 101 are fixedly connected to the side wall of the bottom end of the herringbone fork at the top end of the scraping plate 31; the during operation, when locating plate 23 upwards swivelling movement, No. two deashing boards 101 can contact with locating plate 23 top, scrape off the dust, utilize No. two deashing boards 101 of multiunit to additionally scrape off the dust, can further get rid of the dust, reduce piling up of dust on locating plate 23, for follow-up centre gripping to the article provides help, increase the centre gripping stability.

When the scraper bar is in operation, an object is fixed by the positioning groove 12 and the positioning block 13, the telescopic rod 21 arranged at the bottom end of the positioning block 13 can lift the positioning block 13 through the telescopic rod 21 after the object is clamped, so that air flow can pass through the ventilation groove 14, part of dust is removed by the air flow, when the positioning block 13 is pushed by the telescopic rod 21 to move upwards, the first connecting rope 25 can pull the first rotating shaft 24 to rotate to drive the positioning plate 23 to contact with the side wall of the object for secondary fixation, and after the object price processing is finished, the telescopic rod 21 drives the positioning block 13 to recover, the first rotating shaft 24 drives the positioning plate 23 to return to the second sliding groove 22 again under the action of a torsion spring, when the positioning plate 23 rotates upwards, a herringbone fork at the top end of the scraper plate 31 can contact with the top end of the positioning plate 23, and simultaneously, due to the movement of the positioning plate 23, the scraping plate 31 can be gradually separated from the third sliding groove 3, after the object is processed, the positioning plate 23 returns to the inside of the second sliding groove 22 again under the rotation of the first rotating shaft 24, the scraping plate 31 passes through the third sliding groove 3 and returns to the top end of the positioning plate 23 again, under the action of the magnetic attraction of the first magnet 32 and the second magnet 33, the ends of a plurality of groups of scraping plates 31 are close to each other, when the positioning plate 23 is clamped to finish downward rotating movement, the pair of support rods 4 firstly enter the third sliding groove 3 to guide, the torsion springs arranged between the support rods 4 and the second rotating shaft 41 can support the scraping plate 31, when the positioning plate 23 rotates upwards, the pair of support rods 4 are squeezed to be close to each other, at the moment, the connecting rod 51 can move in the fourth sliding groove 5 to rotate the cam 53 to generate collision, and the connection of the torsion springs matched with each other is arranged in a sectional manner in the moving process of the scraping plate 31, can make and strike off board 31 and locating plate 23 top and contact, strike off the dust, strike off board 31 and receive locating plate 23 rotatory upward movement's pressure after, elastic rope 71 is deformed and is extended under the influence of the extrusion force, conveniently strike off board 31 and break away from in No. three spout 3 smoothly, strike off board 31 and receive locating plate 23 thrust upwards when, elastic rope 71 deformation drives squeeze ball 8 and removes, make squeeze ball 8 contact eight spout 81, outwards push away eight spout 81, contact with locating plate 23 top, strike off board 31 and reset the back, squeeze ball 8 drives No. two and connects No. two elastic ropes 84 of rope 83 cooperation No. two and reset eight spouts 81, in the removal in-process of connecting rod 51, the wave groove 9 of seting up can make No. six spouts 54 cooperate the rotation of No. six spouts 54, drive No. six spouts 54 and beat.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and so on.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a positioning apparatus is made to digit control machine tool which characterized in that: comprises a machine tool platform (1); the bottom end of the machine tool platform (1) is fixedly connected with a supporting leg (11); the top end of the machine tool platform (1) is provided with a positioning groove (12); a positioning block (13) is arranged in the middle of the positioning groove (12); a plurality of groups of ventilation grooves (14) are formed in the top end of the positioning block (13); the positioning block (13) is connected with the positioning groove (12) through a telescopic rod (21).

2. The manufacturing positioning device of a numerical control machine tool as claimed in claim 1, wherein: the middle part of the bottom end of the positioning groove (12) is provided with a first sliding groove (2); the positioning block (13) slides in the first sliding groove (2); the bottom end of the telescopic rod (21) is fixedly connected inside the first sliding chute (2); the bottom end of the positioning groove (12) is positioned at two sides of the first sliding groove (2) and is provided with a second sliding groove (22); the side wall of the second sliding groove (22) close to the first sliding groove (2) is hinged with a first rotating shaft (24); the first rotating shaft (24) is connected with the second sliding groove (22) through a torsion spring; a positioning plate (23) is fixedly connected to the side wall of the first rotating shaft (24); a first connecting rope (25) is fixedly connected to the bottom end of the positioning block (13); the other end of the first connecting rope (25) is wound on the first rotating shaft (24).

3. The manufacturing positioning device of a numerical control machine tool according to claim 2, characterized in that: a plurality of groups of third sliding grooves (3) are formed in the top end of the positioning plate (23); a plurality of groups of scraping plates (31) are fixedly connected to the bottom end of the second sliding chute (22) at the position of the third sliding chute (3); the scraping plate (31) slides in the third sliding chute (3); the top end of the scraping plate (31) is herringbone and has elasticity; a first magnet (32) is fixedly connected to one side of the top end of the scraping plate (31); a second magnet (33) is fixedly connected to the other side of the top end of the scraping plate (31); the first magnet (32) and the second magnet (33) are attracted by magnetic force.

4. The manufacturing positioning apparatus of numerical control machine according to claim 3, wherein: the top end of the scraping plate (31) is positioned on the side wall of the herringbone fork and is hinged with a pair of support rods (4); the top ends of the supporting rods (4) are connected through a second rotating shaft (41); the support rod (4) is connected with the second rotating shaft (41) through a torsion spring; and the top end of the second rotating shaft (41) is fixedly connected with a propelling block (42).

5. The manufacturing positioning apparatus of numerical control machine according to claim 4, wherein: a fourth sliding groove (5) is formed in the side wall of the supporting rod (4); a connecting rod (51) is connected between the pair of the fourth sliding grooves (5) in a sliding manner; a fifth sliding groove (52) is formed in the side wall of the fourth sliding groove (5); a cam (53) is arranged in the fifth sliding groove (52); a sixth sliding groove (54) is formed in the side wall of the fourth sliding groove (5); the cam (53) slides in the six-number sliding groove (54).

6. The manufacturing positioning device of a numerical control machine tool as claimed in claim 5, wherein: the herringbone fork at the top end of the scraping plate (31) is arranged in a sectional mode; a third rotating shaft (6) is hinged to the top between each pair of scraping plates (31); the third rotating shaft (6) is connected with the scraping plate (31) through a torsion spring.

7. The manufacturing positioning apparatus of numerical control machine according to claim 6, wherein: a seventh sliding groove (7) is formed in the side wall of each pair of scraping plates (31); and a first elastic rope (71) is fixedly connected with the side walls of the insides of the seven sliding grooves (7).

8. The manufacturing positioning apparatus of numerical control machine according to claim 7, wherein: a pair of squeezing balls (8) is fixedly connected to the side wall of the first elastic rope (71); a plurality of groups of eight-shaped sliding grooves (81) are formed in the side wall of the scraping plate (31); the eight-number sliding chute (81) is communicated with the seven-number sliding chute (7); a first ash cleaning plate (82) is connected inside the eighth sliding groove (81) in a sliding manner; the extrusion ball (8) is connected with the first ash cleaning plate (82) through a second connecting rope (83); the first ash cleaning plate (82) is connected with the eighth sliding groove (81) through a second elastic rope (84).

9. The manufacturing positioning device of a numerical control machine tool according to claim 8, wherein: the side wall of the connecting rod (51) is provided with a wave groove (9); the wave groove (9) is in contact with the cam (53).

10. The manufacturing positioning device of a numerical control machine tool according to claim 9, wherein: and a plurality of groups of second ash cleaning plates (101) are fixedly connected to the side walls of the bottom ends of the herringbone branches at the top ends of the scraping plates (31).