CN113635090B

CN113635090B - Numerical control machine tool

Info

Publication number: CN113635090B
Application number: CN202111191300.9A
Authority: CN
Inventors: 宗莹
Original assignee: Santuo Precision Machinery Nantong Co ltd
Current assignee: Santuo Precision Machinery Nantong Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2021-12-21
Anticipated expiration: 2041-10-13
Also published as: CN113635090A

Abstract

The invention discloses a numerical control machine tool, which relates to the field of machine tools and comprises a supporting transmission cavity, a clamping assembly, an annular plate, a driving motor and a bearing cavity, wherein the supporting transmission cavity is of a rectangular structure and stably supports the clamping assembly, the clamping assembly rapidly clamps an external machined part, and the clamping assembly is fixedly arranged at the top of the annular plate and rotates along the top of the bearing cavity. Above-mentioned scheme, when butt each other through setting up extrusion piece and toper butt end, it slides along extrusion piece vector direction to drive the slide plate groove along the slide bar surface, and then make the slide plate groove of both sides extrude in compression spring's both sides and then carry on spacingly to the slide plate groove, the bottom in slide plate groove is connected respectively in one side of first wedge holder and second wedge holder, subtend magnetic pole repels, slow down the fall-back time of magnetism sliding block, prevent that expanding spring's extrusion force from excessively causing and harm to the centre gripping object.

Description

Numerical control machine tool

Technical Field

The invention relates to the technical field of processing machines, in particular to a numerical control processing machine tool.

Background

In the numerical control machining process, need use numerical control processing equipment to carry out machining, need carry out the centre gripping to the processing material in the course of working and fix, because different dental material specification size is different, so need use the anchor clamps of different grade type to carry out the centre gripping fixed, but an anchor clamps fixed establishment of numerical control processing equipment, when carrying out the centre gripping to the anchor clamps of different grade type, often all trade the anchor clamps that correspond through artifical manual, an anchor clamps fixed establishment only is suitable for the anchor clamps of a specification, the suitability is low, and need relocate zero point coordinate when the centre gripping, this kind of mode is not only intensity of labour big, consuming time long, the flexibility is low, low efficiency, influence the production progress, and the manufacturing cost of enterprise has been increased.

In addition, in the clamping process, due to the fact that the rotary positioning mechanism moves frequently, up-and-down moving parts arranged in the rotary positioning mechanism are prone to abrasion, the clamping head is prone to loosening, the positioning accuracy of the rotary positioning mechanism is low, and the stability of the rotary positioning mechanism is poor.

Therefore, the application provides a numerical control machine tool to satisfy the demand.

Disclosure of Invention

An object of this application is to provide a numerical control machine tool.

In order to achieve the above purpose, the present application provides the following technical solutions: a numerical control machine tool comprises a height adjusting assembly, a supporting transmission cavity, a clamping assembly, an annular plate, a driving motor and a bearing cavity, wherein the bearing cavity is of a cavity structure, the bottom of the annular plate is provided with a rotating ring, the top of the bearing cavity is provided with a rotating groove, the rotating ring is rotatably arranged inside the rotating groove, and the clamping assembly is rotatably adjusted;

the clamping assembly comprises a second driving cylinder, a clip-shaped guard plate and a connecting plate, magnetic sliding blocks are symmetrically arranged on one side of the connecting plate along the center line of the clip-shaped guard plate, the clamping assembly further comprises a sliding plate groove, a conical abutting end and a sliding rod, the sliding plate groove is symmetrically arranged along the central line of the sliding rod, the bottom of the sliding plate groove is respectively fixed with a first wedge-shaped clamping piece and a second wedge-shaped clamping piece which are arranged in a staggered manner, the height of the first wedge-shaped clamping piece is lower than that of the second wedge-shaped clamping piece, two sides of the first wedge-shaped clamping piece and the second wedge-shaped clamping piece are respectively abutted against two sides of the magnetic sliding block, the both sides of magnetism sliding block carry out the butt through expanding spring and the inside both sides of linkage plate, the surface mounting of toper butt end has the response piece.

Preferably, a butting hole is formed in one side of the double-sided guard plate, the sliding end of the second driving cylinder penetrates through the double-sided guard plate and slides on one side of the double-sided guard plate, the sliding rod is fixed on one side of the double-sided guard plate, a compression spring is movably sleeved on two sides of the surface of the sliding rod, a sliding plate groove is slidably installed on two sides of the surface of the sliding rod, an extrusion block is fixedly installed at the top of the sliding plate groove, a conical butting end is installed on one side of the sliding end of the second driving cylinder, and the conical butting end is abutted against one side of the extrusion block.

Preferably, the bottom of returning the type backplate one side seted up with the rectangle spout of magnetism sliding block both sides looks adaptation, one side of rectangle spout is seted up along the central line symmetry of returning the type backplate, the inside of rectangle spout and the both sides of magnetism sliding block are installed the attraction piece that polarity equals, attract piece and external current ware electric connection, response piece and external current ware communication connection, attract the piece and be two bisymmetry form setting, attract piece relative position polarity repulsion, the angle piece of centre gripping machined part is installed through the screw in one side of first wedge holder and second wedge holder.

Preferably, a plurality of balls are installed on the outer side of the rotating ring, the surfaces of the balls are attached to the inner wall of the rotating groove, the output end of the driving motor penetrates through the bearing cavity and is rotatably installed on one side inside the bearing cavity.

Preferably, the inside of bearing the weight of the cavity is equipped with first conversion layer, second conversion layer and third conversion layer, cross annular partition panel interval installation between first conversion layer, second conversion layer and the third conversion layer, the surface of bearing the weight of cavity inner wall is fixed in to the both sides of annular partition panel, the surface of annular partition panel and bearing the weight of cavity inner wall is slider assembly or bolt assembly structure, driving motor's output runs through first conversion layer, second conversion layer and third conversion layer and rotates and install in one side of third conversion layer, the fixed cover in surface of driving motor output has connect the initiative tooth.

Preferably, the first conversion layer, the second conversion layer and the third conversion layer are of driven tooth structures, the driven tooth is of an annular structure, the driven tooth is of a triangular structure and is mounted around the driving tooth, two sides of the driving tooth are meshed with three sides of the driven tooth respectively, a linking pin shaft is mounted at the center of the driven tooth, a horn-shaped plate is fixedly mounted at the top of the linking pin shaft, and the top of the horn-shaped plate and the surface of one side of the annular plate are fixedly mounted.

Preferably, the height adjusting assembly includes support frame, linear slide rail and slide rail board, linear slide rail is symmetry form difference fixed mounting in one side of support frame, the straight line spout with linear slide rail surface looks adaptation is seted up to one side of slide rail board, the top of support frame is fixed with first actuating cylinder that drives, the first slip end that drives actuating cylinder runs through the support frame and connects the surface of installing in slide rail board one side, flexible chain is installed to one side of support frame, one side of flexible chain is connected and is installed the processing part, the processing part is laser or cutter structure, the diameter length of flexible chain is greater than linear slide rail's diameter length.

Preferably, the bottom of supporting the transmission cavity is connected and is installed the horizontal adjustment subassembly that the transmission cavity was supported in horizontal adjustment, horizontal adjustment subassembly includes that guard plate, third drive actuating cylinder and supporting baseplate, the top both sides of supporting baseplate are fixed with the balancing weight.

Preferably, the top of supporting baseplate is fixed with spacing, the slider is installed to one side symmetry of spacing, the top slidable mounting of slider has fixed diaphragm, the locking groove is installed at the top of fixed diaphragm, the top in locking groove and the bottom of supporting transmission cavity slide fixedly.

In conclusion, the technical effects and advantages of the invention are as follows:

1. in the scheme, when the extrusion block and the conical abutting end are arranged to abut against each other, the sliding plate groove is driven to slide along the surface of the sliding rod along the vector direction of the extrusion block, so that the sliding plate grooves on two sides are extruded on two sides of the compression spring to limit the sliding plate groove, the bottom of the sliding plate groove is respectively connected to one side of the first wedge-shaped clamping piece and one side of the second wedge-shaped clamping piece, the first wedge-shaped clamping piece and the second wedge-shaped clamping piece are arranged in a staggered manner, the height of the first wedge-shaped clamping piece is lower than that of the second wedge-shaped clamping piece, two sides of the first wedge-shaped clamping piece and the second wedge-shaped clamping piece are respectively abutted against two sides of the magnetic sliding block to symmetrically and alternately clamp a workpiece, when the induction sheet is separated from the extrusion block, the current device is powered off, the magnetic sliding block is oppositely tightened on two sides of a clamped object through the self elasticity of the telescopic spring, the opposite surfaces of the magnetic sliding blocks are made of screen magnetic materials, in the process that the magnetic sliding blocks are abutted against the first wedge-shaped clamping piece and the second wedge-shaped clamping piece and fall back, magnetic force cannot disappear quickly, opposite magnetic poles repel each other, the fall-back time of the magnetic sliding blocks is slowed down, and damage to a clamped object caused by overlarge extrusion force of the expansion spring is prevented;

2. according to the invention, the output end of the driving motor is arranged to rotate to drive the driving tooth on the surface to rotate, the driving tooth is rotationally meshed with the driven tooth to rotate in a triangular direction, the first conversion layer, the second conversion layer and the third conversion layer are linked to rotate in an equidirectional mode through the linking pin shaft, and further the horn-shaped plate fixing ring plate is driven to drive the clamping assembly to rotate 360 degrees, balancing weights are further fixed to two sides of the top of the supporting bottom plate, the overall stability of the transverse adjusting assembly is improved, the top of the supporting bottom plate is fixed with the limiting strips to limit transverse adjustment, sliding strips are symmetrically arranged on one sides of the limiting strips to provide sliding strokes for transverse adjustment, a fixing transverse plate is slidably arranged on the top of each sliding strip, a locking groove is arranged on the top of the fixing transverse plate, and the top of the locking groove and the bottom of the supporting transmission cavity are slidably fixed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a rotary adjustment structure of the present invention;

FIG. 3 is a schematic view of a quick clamping structure of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the magnetic attraction structure of the present invention;

FIG. 6 is a schematic view of a separating structure of the annular plate and the bearing cavity thereof;

FIG. 7 is a schematic view of a rotational adjustment mechanism of the present invention;

FIG. 8 is a schematic view of the present rotational engagement structure;

fig. 9 is a schematic view of the lateral adjustment structure of the present invention.

In the figure: 1. a height adjustment assembly; 2. supporting the transmission cavity; 3. a clamping assembly; 4. a lateral adjustment assembly; 5. an annular plate; 6. a bearing cavity; 7. a drive motor; 11. a support frame; 12. a linear slide rail; 13. a slide rail plate; 14. a first driving cylinder; 15. a flexible chain; 16. processing the component; 31. a second driving cylinder; 32. a clip-shaped guard plate; 33. a connector tile; 34. a slide plate slot; 35. extruding the block; 36. a tapered abutment end; 37. a magnetic slider; 38. a first wedge clamp; 39. a second wedge clamp; 41. a protection plate; 42. a third driving cylinder; 43. a support base plate; 44. a balancing weight; 45. a limiting strip; 46. fixing the transverse plate; 47. a locking groove; 48. a slide bar; 51. a rotating ring; 61. rotating the groove; 62. a first conversion layer; 63. a second translation layer; 64. a third translation layer; 65. connecting the pin shafts; 66. a horn-shaped plate; 67. a driving tooth; 68. a driven tooth; 301. a slide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, a numerical control machine tool includes a height adjusting assembly 1, a supporting transmission cavity 2, a clamping assembly 3, an annular plate 5, a driving motor 7 and a bearing cavity 6, wherein the bearing cavity 6 is a cavity structure, a rotating ring 51 is disposed at the bottom of the annular plate 5, a rotating groove 61 is disposed at the top of the bearing cavity 6, the rotating ring 51 is rotatably mounted inside the rotating groove 61, and the clamping assembly 3 is rotatably adjusted;

the clamping assembly 3 comprises a second driving cylinder 31, a clip-shaped guard plate 32 and a connecting plate 33, wherein one side of the connecting plate 33 is symmetrically provided with magnetic sliding blocks 37 along the central line of the clip-shaped guard plate 32, the clamping assembly 3 further comprises a sliding plate groove 34, toper butt end 36 and slide bar 301, slide bar groove 34 sets up along slide bar 301's central line symmetry, the bottom in slide bar groove 34 is fixed with first wedge holder 38 and second wedge holder 39 respectively, first wedge holder 38 and second wedge holder 39 are crisscross form setting, the height that highly is less than second wedge holder 39 of first wedge holder 38, the both sides of first wedge holder 38 and second wedge holder 39 respectively with the both sides looks butt of magnetism sliding block 37, the both sides of magnetism sliding block 37 are passed through expanding spring and are carried out the butt with the inside both sides of linking plate 33, the surface mounting of toper butt end 36 has the response piece.

In this embodiment, an abutting hole is formed in one side of the clip-shaped guard plate 32, the sliding end of the second driving cylinder 31 penetrates through the clip-shaped guard plate 32 and slides on one side of the clip-shaped guard plate 32, the sliding rod 301 is fixed to one side of the clip-shaped guard plate 32, a compression spring is movably sleeved on two sides of the surface of the sliding rod 301, the sliding plate grooves 34 are slidably mounted on two sides of the surface of the sliding rod 301, the extrusion block 35 is fixedly mounted on the top of the sliding plate grooves 34, the tapered abutting end 36 is mounted on one side of the sliding end of the second driving cylinder 31, and the tapered abutting end 36 abuts against one side of the extrusion block 35.

In this embodiment, when the pressing block 35 and the tapered abutting end 36 abut against each other, the sliding plate groove 34 is driven to slide along the surface of the sliding rod 301 along the vector direction of the pressing block 35, so that the sliding plate grooves 34 on both sides are pressed on both sides of the compression spring to limit the sliding plate groove 34.

In this embodiment, the bottom of the rectangular slide groove on one side of the rectangular guard plate 32 is provided with a rectangular slide groove matched with the two sides of the magnetic slide block 37, one side of the rectangular slide groove is symmetrically provided along the central line of the rectangular guard plate 32, the inside of the rectangular slide groove and the two sides of the magnetic slide block 37 are provided with attraction blocks with equal polarity, the attraction blocks are electrically connected with an external current device, the induction sheet is in communication connection with the external current device, the attraction blocks are symmetrically arranged in pairs, the polarities of the relative positions of the attraction blocks are repellent, one sides of the first wedge-shaped clamping piece 38 and the second wedge-shaped clamping piece 39 are provided with angle-shaped blocks for clamping workpieces through screws, and the workpieces are symmetrically and alternately clamped.

In this embodiment, the response piece produces the sensing signal at the contact process of extrusion piece 35 and toper butt end 36, and then passes through outside current device and circular telegram to the attraction piece, and attraction piece relative position polarity repels each other and is the opposite direction slip in-process at both sides magnetic sliding block 37, carries out the quick response to the object that presss from both sides, and when the response piece breaks away from extrusion piece 35, the current device cuts off the power supply, through expanding spring's self elasticity, makes magnetic sliding block 37 carry out the opposite direction and tighten up in the both sides of the object that presss from both sides.

Wherein, the subtend side of magnetism sliding block 37 constitutes for the screen magnetic material, and at the in-process that first wedge holder 38 of magnetism sliding block 37 butt and second wedge holder 39 fall back, magnetic force can not disappear very fast, and subtend magnetic pole repels, slows down the fall back time of magnetism sliding block 37, prevents that expanding spring's extrusion force is too big to cause and to the centre gripping object harm.

The current device and the suction block are of electrified magnetic pole structures, and the induction sheet is of a displacement or pressure type induction structure.

In this embodiment, a plurality of balls are installed on the outer side of the rotating ring 51, the surfaces of the balls are attached to the inner wall of the rotating groove 61, the rotating force of the rotating ring 51 is increased, the output end of the driving motor 7 penetrates through the bearing cavity 6, and the driving motor is rotatably installed on one side inside the bearing cavity 6.

In this embodiment, a first conversion layer 62, a second conversion layer 63 and a third conversion layer 64 are arranged inside the bearing cavity 6, the first conversion layer 62, the second conversion layer 63 and the third conversion layer 64 are installed at intervals through an annular partition plate, two sides of the annular partition plate are fixed on the surface of the inner cavity inner wall of the bearing cavity 6, the surfaces of the annular partition plate and the inner wall of the bearing cavity 6 are of a sliding block assembly or bolt assembly structure, the output end of the driving motor 7 penetrates through the first conversion layer 62, the second conversion layer 63 and the third conversion layer 64 are rotatably installed on one side of the third conversion layer 64, and an active tooth 67 is fixedly sleeved on the surface of the output end of the driving motor 7.

In this embodiment, the first conversion layer 62, the second conversion layer 63 and the third conversion layer 64 are in a driven tooth 68 structure, the driven tooth 68 is in a ring-shaped structure, the driven tooth 68 is in a triangular structure and is installed around the driving tooth 67, two sides of the driving tooth 67 are respectively meshed with three sides of the driven tooth 68, an engagement pin shaft 65 is installed at the center position of the driven tooth 68, an angle-shaped plate 66 is fixedly installed at the top of the engagement pin shaft 65, and the top of the angle-shaped plate 66 and the surface of one side of the ring plate 5 are fixedly installed.

In this embodiment, the driving motor 7 is a servo motor or an ac motor, the output end of the driving motor 7 rotates to drive the driving tooth 67 on the surface to rotate, the driving tooth 67 is rotationally engaged with the driven tooth 68 to form a rotating surface in a triangular direction, and the first conversion layer 62, the second conversion layer 63 and the third conversion layer 64 are linked to rotate in an equal direction through the linking pin 65, so as to drive the angle plate 66 to fix the annular plate 5 and drive the clamping assembly 3 to rotate 360 degrees.

Wherein, first conversion layer 62, second conversion layer 63 and third conversion layer 64 can carry out multistage speed reduction when rotatory the adjustment to holding subassembly 3 in rotatory process, are applicable to powerful motor and use, can increase and decrease according to actual use condition, and the top of horny plate 66 and annular plate 5 is for integrative injection moulding or installs through the bolt.

In this embodiment, the height adjusting assembly 1 includes a support frame 11, a linear slide rail 12 and a slide rail plate 13, the linear slide rail 12 is symmetrically and fixedly installed on one side of the support frame 11, a linear slide groove matched with the surface of the linear slide rail 12 is formed in one side of the slide rail plate 13, a first driving cylinder 14 is fixed at the top of the support frame 11, a sliding end of the first driving cylinder 14 penetrates through the support frame 11 and is connected and installed on the surface of one side of the slide rail plate 13, a flexible chain 15 is installed on one side of the support frame 11, a processing part 16 is connected and installed on one side of the flexible chain 15, the processing part 16 is a laser or a cutter structure, the diameter length of the flexible chain 15 is greater than that of the linear slide rail 12, and the fault tolerance of height adjustment is improved.

In this embodiment, the sliding end of the first driving cylinder 14 performs an advancing or contracting motion to drive the sliding rail plate 13 to linearly slide along the surface of the linear sliding rail 12, and further to drive the machining part 16 to perform a height adjustment, wherein the sliding end of the first driving cylinder 14 is welded through a flange or a rotating sleeve.

In this embodiment, horizontal adjustment subassembly 4 includes guard plate 41, third drive actuating cylinder 42 and supporting baseplate 43, the top both sides of supporting baseplate 43 are fixed with balancing weight 44, increase the holistic stability of horizontal adjustment subassembly 4, the top of supporting baseplate 43 is fixed with spacing 45 and carries on spacingly to horizontal adjustment, sliding strip 48 is installed to one side symmetry of spacing 45, provide the slip stroke for horizontal adjustment, sliding strip 48's top slidable mounting has fixed diaphragm 46, locking groove 47 is installed at the top of fixed diaphragm 46, the top of locking groove 47 and the bottom of supporting transmission cavity 2 are slided fixedly.

The working principle of the invention comprises the following steps:

the first step is as follows: firstly, when a processed object is clamped, the second driving cylinder 31 is started to work, the sliding end of the second driving cylinder 31 slides to one side to drive the conical abutting end 36 to abut against one side of the extrusion block 35 to slide, when the extrusion block 35 and the conical abutting end 36 abut against each other, the sliding plate groove 34 is driven to slide along the surface of the sliding rod 301 along the vector direction of the extrusion block 35, so that the sliding plate grooves 34 on the two sides are extruded on the two sides of the compression spring to limit the sliding plate groove 34, the bottom of the sliding plate groove 34 is respectively connected with one side of the first wedge-shaped clamping piece 38 and one side of the second wedge-shaped clamping piece 39, the first wedge-shaped clamping piece 38 and the second wedge-shaped clamping piece 39 are arranged in a staggered manner, the height of the first wedge-shaped clamping piece 38 is lower than that of the second wedge-shaped clamping piece 39, the two sides of the first wedge-shaped clamping piece 38 and the second wedge-shaped clamping piece 39 respectively abut against the two sides of the magnetic sliding block 37, and symmetrically and alternately clamping the workpiece.

The second step is that: the response piece produces inductive signal at the contact process of extrusion piece 35 and toper butt end 36, and then the electro-magnetic device through the outside is circular telegram to the attraction piece, attraction piece relative position polarity repels and is the opposite direction slip in-process at both sides magnetism sliding block 37, carry out the high-speed reaction to the object that presss from both sides, at last when the response piece breaks away from extrusion piece 35, the electro-magnetic device cuts off the power supply, self elasticity through expanding spring, make magnetism sliding block 37 carry out the opposite direction and tighten up in the both sides of the object that presss from both sides, the subtend face of magnetism sliding block 37 constitutes for the screen magnetic material, at the in-process that first wedge holder 38 of magnetism sliding block 37 butt and second wedge holder 39 fall back, magnetic force can not disappear very fast, the magnetic pole of opposite direction repeals, slow down the fall-back time of magnetism sliding block 37, prevent that expanding spring's extrusion force from excessively causing the harm to the object that presss from both sides.

The third step: the output end of the driving motor 7 rotates to drive the driving tooth 67 on the surface to rotate, the driving tooth 67 is rotationally meshed with the driven tooth 68 to form a rotating surface in a triangular direction, the first conversion layer 62, the second conversion layer 63 and the third conversion layer 64 are linked to rotate in the same direction through the linking pin shaft 65, and then the horn-shaped plate 66 is driven to fix the annular plate 5 to drive the clamping assembly 3 to rotate by 360 degrees.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a numerical control machine tool which characterized in that: the clamping device comprises a height adjusting assembly (1), a supporting transmission cavity (2), a clamping assembly (3), an annular plate (5), a driving motor (7) and a bearing cavity (6), wherein the bearing cavity (6) is of a cavity structure, a rotating ring (51) is arranged at the bottom of the annular plate (5), a rotating groove (61) is formed in the top of the bearing cavity (6), the rotating ring (51) is rotatably arranged in the rotating groove (61), and the clamping assembly (3) is rotatably adjusted;

the clamping assembly (3) comprises a second driving cylinder (31), a clip-shaped guard plate (32) and a connecting plate (33), magnetic sliding blocks (37) are symmetrically arranged on one side of the connecting plate (33) along the center line of the clip-shaped guard plate (32), the clamping assembly (3) further comprises a sliding plate groove (34), a conical abutting end (36) and a sliding rod (301), the sliding plate groove (34) is symmetrically arranged along the center line of the sliding rod (301), the bottom of the sliding plate groove (34) is respectively fixed with a first wedge-shaped clamping piece (38) and a second wedge-shaped clamping piece (39), the first wedge-shaped clamping piece (38) and the second wedge-shaped clamping piece (39) are arranged in a staggered mode, the height of the first wedge-shaped clamping piece (38) is lower than that of the second wedge-shaped clamping piece (39), two sides of the first wedge-shaped clamping piece (38) and the second wedge-shaped clamping piece (39) are respectively abutted to two sides of the magnetic sliding blocks (37), the two sides of the magnetic sliding block (37) are abutted through the two sides of the interior of the expansion spring and the joint plate (33), and the sensing piece is arranged on the surface of the conical abutting end (36).

2. A numerical control machine tool according to claim 1, characterized in that: the butt hole has been seted up to one side of returning type backplate (32), the sliding end that the second drove actuating cylinder (31) runs through back type backplate (32), slides in one side of returning type backplate (32), slide bar (301) are fixed in one side of returning type backplate (32), compression spring has been cup jointed in the activity of the both sides on slide bar (301) surface, slide bar groove (34) slidable mounting in the both sides on slide bar (301) surface, the top fixed mounting in slide bar groove (34) has extrusion piece (35), toper butt end (36) install in the second drives one side of actuating cylinder (31) sliding end, one side butt of toper butt end (36) and extrusion piece (35).

3. A numerically controlled machine tool as claimed in claim 2, wherein: the bottom of returning type backplate (32) one side sets up the rectangle spout with magnetism sliding block (37) both sides looks adaptation, the central line symmetry along returning type backplate (32) is seted up to one side of rectangle spout, the inside of rectangle spout and the both sides of magnetism sliding block (37) are installed and are attracted the piece that the polarity equals, attract piece and external current ware electric connection, response piece and external current ware communication connection, it sets up to attract the piece to be two bisymmetry forms, attract the piece relative position polarity and repel each other, the angle shape piece of centre gripping machined part is installed through the screw in one side of first wedge holder (38) and second wedge holder (39).

4. A numerically controlled machine tool as claimed in claim 3, wherein: a plurality of balls are installed on the outer side of the rotating ring (51), the surfaces of the balls are attached to the inner wall of the rotating groove (61), the output end of the driving motor (7) penetrates through the bearing cavity (6), and the driving motor is rotatably installed on one side of the inner portion of the bearing cavity (6).

5. A numerical control machine tool according to claim 1, characterized in that: the bearing cavity is characterized in that a first conversion layer (62), a second conversion layer (63) and a third conversion layer (64) are arranged inside the bearing cavity (6), annular partition boards are arranged among the first conversion layer (62), the second conversion layer (63) and the third conversion layer (64) at intervals, two sides of each annular partition board are fixed on the surface of the inner wall of the inner cavity of the bearing cavity (6), the surfaces of the annular partition boards and the inner wall of the bearing cavity (6) are of a sliding block assembly or bolt assembly structure, the output end of a driving motor (7) penetrates through the first conversion layer (62), the second conversion layer (63) and the third conversion layer (64) and is rotatably installed on one side of the third conversion layer (64), and the surface of the output end of the driving motor (7) is fixedly sleeved with a driving tooth (67).

6. A numerical control machine tool according to claim 5, characterized in that: first conversion layer (62), second conversion layer (63) and third conversion layer (64) are from moving tooth (68) structure, from moving tooth (68) are the annular column structure, from moving tooth (68) and being three horn-shaped structure around drive tooth (67) installation, the both sides of drive tooth (67) respectively with the three sides intermeshing of driven tooth (68), from moving the central point of tooth (68) and putting and installing linking round pin axle (65), the top fixed mounting of linking round pin axle (65) has horniness board (66), the fixed surface installation of the top of horniness board (66) and annular board (5) one side.

7. A numerical control machine tool according to claim 1, characterized in that: height adjusting subassembly (1) includes support frame (11), linear slide rail (12) and slide rail board (13), linear slide rail (12) are symmetry form fixed mounting respectively in one side of support frame (11), the straight line spout with linear slide rail (12) surface looks adaptation is seted up to one side of slide rail board (13), the top of support frame (11) is fixed with first actuating cylinder (14) that drives, the first slip end that drives actuating cylinder (14) runs through support frame (11) and connects the surface of installing in slide rail board (13) one side, flexible chain (15) are installed to one side of support frame (11), one side of flexible chain (15) is connected and is installed processing part (16), processing part (16) are laser or cutter structure, the diameter length of flexible chain (15) is greater than the diameter length of linear slide rail (12).

8. A numerical control machine tool according to claim 1, characterized in that: the bottom of supporting transmission cavity (2) is connected and is installed horizontal adjusting part (4) that support transmission cavity (2) transversely, horizontal adjusting part (4) drive actuating cylinder (42) and supporting baseplate (43) including guard plate (41), third, the top both sides of supporting baseplate (43) are fixed with balancing weight (44).

9. A numerically controlled machine tool as recited in claim 8, wherein: the top of supporting baseplate (43) is fixed with spacing (45), sliding bar (48) are installed to one side symmetry of spacing (45), the top slidable mounting of sliding bar (48) has fixed diaphragm (46), locking groove (47) are installed at the top of fixed diaphragm (46), the top of locking groove (47) and the bottom of supporting transmission cavity (2) slide fixedly.