CN212885104U

CN212885104U - Front-mounted pneumatic chuck of pre-installed speed reducer

Info

Publication number: CN212885104U
Application number: CN202020860048.0U
Authority: CN
Inventors: 石利军
Original assignee: Changzhou Dairuike Mechanical And Electrical Technology Co ltd
Current assignee: Changzhou Dairuike Mechanical And Electrical Technology Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-04-06
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses a front pneumatic chuck for preassembling a speed reducer, which comprises a base component, a chuck body, an inner sleeve and a gas distribution ring component, wherein the chuck body, the inner sleeve and the gas distribution ring component are fixedly connected in sequence; the front end of the chuck body is provided with a jaw component; a driving assembly and a driven gear assembly which are sequentially sleeved on the inner sleeve are arranged between the chuck body and the gas distribution ring assembly; the base component comprises a base and a bearing; the driven gear assembly comprises a driven gear fixedly connected with the driving assembly and a gear box body sleeved on the peripheral surface of the driven gear and fixedly arranged at the rear end of the base; the chuck also comprises a speed reducer which is fixedly arranged on the peripheral surface of the gear box body and is suitable for driving the driven gear to rotate; the driving assembly comprises a transmission assembly and a pneumatic assembly; the pneumatic assembly is communicated with an external air source through the air distribution ring assembly and is suitable for driving the jaw assembly to move. The utility model discloses structural design is compact for the whole axial dimensions of chuck reduces, has effectively shortened air chuck's cutting tails.

Description

Front-mounted pneumatic chuck of pre-installed speed reducer

Technical Field

The utility model relates to a laser cutting machine part, especially a leading type air chuck of pre-installation speed reducer.

Background

Laser cutting is the most important application technology in the laser processing industry, and has the characteristics of high speed, high precision, no deformation of workpieces and the like, so that the laser cutting technology is widely applied to the fields of automobiles, rolling stock manufacturing, aviation, chemical engineering, light industry, electrical appliances, electronics, petroleum, metallurgy and the like. In recent years, laser cutting technology has developed rapidly, and the laser cutting technology has increased at a rate of 20% to 30% every year internationally. China has increased more than 25% per year since 1985. Because the laser industry foundation in China is poor, the application of the laser processing technology is not common, the overall level of laser processing is still far from the advanced state, and the obstacles and the defects are believed to be solved along with the continuous progress of the laser processing technology. The laser cutting technology is bound to become an important pipe processing means indispensable in the 21 st century. The wide application market of laser cutting processing and the rapid development of modern science and technology enable domestic and foreign science and technology workers to conduct continuous research on laser cutting processing technology, and the laser cutting technology is promoted to develop continuously forward.

Along with the increasing expansion of the market of laser pipe cutting machines, the use of pneumatic chucks is more and more, but the problem of long cutting tailings commonly exists in the pneumatic chucks used by laser complete machine factories at present, and a chuck with excellent performance is urgently needed to replace a simple and crude chuck which cannot fully meet the cutting target at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pre-installation speed reducer's forward type air chuck effectively shortens air chuck's cutting tails.

Realize the utility model discloses the technical scheme of purpose is:

a front-mounted pneumatic chuck with a pre-installed speed reducer comprises a base assembly, a chuck body, an inner sleeve and a gas distribution ring assembly, wherein the chuck body, the inner sleeve and the gas distribution ring assembly are fixedly connected in sequence; the chuck body is made of aluminum; the front end of the chuck body is provided with a jaw assembly; a driving assembly and a driven gear assembly which are sequentially sleeved on the inner sleeve are arranged between the chuck body and the gas distribution ring assembly; the base assembly comprises a bearing and a base; the inner ring and the outer ring of the bearing are respectively fixedly connected with the driving assembly and the base; the driven gear assembly comprises a driven gear fixedly connected with the driving assembly and a gear box body sleeved on the peripheral surface of the driven gear and fixedly arranged at the rear end of the base; the chuck also comprises a speed reducer which is fixedly arranged on the peripheral surface of the gear box body and is suitable for driving the driven gear to rotate; a cover plate fixedly arranged at the rear end of the driven gear is sleeved on the gas distribution ring assembly; the driving assembly comprises a transmission assembly and a pneumatic assembly; the pneumatic assembly is communicated with an external air source through the air distribution ring assembly and is suitable for driving the jaw assembly to move.

Further, four sliding parts are uniformly distributed at the front end of the chuck body, and arc-shaped grooves are formed between every two adjacent sliding parts.

Further, the jaw assembly comprises two pairs of sliding blocks and jaw mechanisms; the sliding block is slidably mounted on the sliding part, and the claw mechanism is detachably mounted on the sliding block.

Furthermore, the sliding part is provided with a first boss, two sides of the first boss are provided with inlaid strips made of stainless steel, and the front end surface of each inlaid strip is higher than the front end surface of the first boss; because the chuck body adopts aluminium system material, compare in steel material's chuck body, weight alleviates greatly, but the while surface hardness is lower, adopts stainless steel's panel, can effectively avoid the sliding block to wear and tear the chuck body at gliding in-process.

Furthermore, two positioning key grooves are formed in the front end face of the sliding block, so that the clamping jaw mechanism is convenient to mount and adjust; the rear portion symmetry of sliding block is equipped with the second boss of outside extension, the outside of one side second boss is equipped with the tooth's socket of the distribution of extension degree direction.

Furthermore, the both sides of sliding block are equipped with the layering that fixed connection is the L type on the chuck body in the cross section to restriction sliding block can only follow chuck radial movement.

Further, the pneumatic assembly includes a first cylinder assembly, a second cylinder assembly, and a cylinder housing.

Further, the base is of an integrated structure; and two ends of the inner ring of the bearing are respectively connected with the chuck body and the cylinder outer cover.

Furthermore, a hanging ring is arranged at the top of the peripheral surface of the base.

Furthermore, a positioning groove is formed in the middle of the bottom of the base, and the laser cutting machine is convenient to mount.

Furthermore, the front end face and the rear end face of the lower portion of the base are symmetrically provided with the concave portions, so that the weight of the base can be reduced, materials can be saved, the casting quality can be improved, and the casting defects such as shrinkage cavities, sand holes and the like can be avoided.

Furthermore, a sight hole cover and a proximity switch are arranged on the peripheral surface of the gear box body.

Further, a bolt matched with the proximity switch is arranged on the outer peripheral surface of the driven gear.

Furthermore, the transmission assembly comprises an inner fluted disc and an outer fluted disc which are sequentially sleeved on the inner sleeve, and a first bridge gear assembly and a second bridge gear assembly which are rotatably arranged on the chuck body and the cylinder outer cover and are respectively meshed with the inner fluted disc and the outer fluted disc; and the first gap bridge gear assembly and the second gap bridge gear assembly are respectively provided with a pair.

Furthermore, tooth grooves of the inner fluted disc and the pair of sliding blocks are respectively meshed with the first bridge gear assembly; and the tooth grooves of the outer fluted disc and the other pair of sliding blocks are respectively meshed with the second gap bridge gear assembly.

Furthermore, roller pins are arranged between the inner fluted disc and the inner sleeve and between the outer fluted disc and the inner sleeve, so that the friction force between the fluted disc and the inner sleeve is greatly reduced.

Furthermore, oil paths are arranged at the front part of the inner sleeve and the positions corresponding to the inner fluted disc and the outer fluted disc.

Furthermore, the chuck body is provided with the oil hole communicated with the oil way, lubricating oil can be directly added to the roller pins at the fluted disc from the outside of the chuck, and the maintenance is convenient.

Further, the first bridge gear assembly comprises a first rotating shaft, a first gear and a second gear which are coaxially and fixedly installed on the first rotating shaft, and the first gear and the second gear are respectively meshed with the tooth grooves of the inner fluted disc and the sliding block; the second bridge gear assembly comprises a second rotating shaft, and a third gear and a fourth gear which are coaxially and fixedly installed on the second rotating shaft, wherein the third gear and the fourth gear are respectively meshed with the tooth grooves of the outer fluted disc and the sliding block.

Further, the first cylinder assembly comprises a first cylinder, a first mounting pin, a first connecting block, a first guide pin and a first side lug; the first cylinder is arranged on the rear side of the cylinder outer cover and is rotatably connected to the first mounting pin; the first mounting pin penetrates through the cylinder outer cover along the front-back direction and is rotatably mounted between the cover plate and the chuck body; the first guide pin is fixedly connected with the first cylinder through a first connecting block; one end of the first side lug is fixedly connected with the inner gear plate, and the other end of the first side lug is rotatably connected with the first guide pin; the second air cylinder assembly comprises a second air cylinder, a second mounting pin, a second connecting block, a second guide pin and a second side lug; the second cylinder is arranged on the rear side of the cylinder outer cover and is rotatably connected to the second mounting pin; the second mounting pin penetrates through the cylinder outer cover along the front-back direction and is rotatably mounted between the cover plate and the chuck body; the second guide pin is fixedly connected with the second air cylinder through a second connecting block; one end of the second side lug is fixedly connected with the outer fluted disc, and the other end of the second side lug is rotatably connected with the second guide pin.

Further, the gas distribution ring assembly comprises a gas sealing disc, a sealing pressure ring and a sealing gland; the gas sealing disc is provided with a flange part; the sealing pressure ring is rotatably sleeved on the gas sealing disc; the flange part and the sealing gland are respectively arranged on two sides of the sealing pressure ring; the front end and the rear end of the air sealing disc are respectively fixedly connected with the rear end of the inner sleeve and the front end of the sealing gland; and the outer peripheral surface of the sealing compression ring is provided with an air inlet and an air outlet which are communicated with an external air source.

Furthermore, air path grooves are formed in two sides of the sealing compression ring, sealing rings which are in clearance fit along the axial direction are arranged in the air path grooves, and a plurality of air holes are uniformly distributed in the sealing rings; the air sealing disc is provided with a first air passage communicated with the air passage groove on one side through the air hole; the sealing gland is provided with a second air passage communicated with the air passage groove at the other side through the air hole; and a third air passage communicated with the second air passage is also arranged on the air sealing disc.

Further, the both sides of sealed clamping ring still are equipped with the annular groove, be equipped with the ball in the annular groove, be equipped with the kingpin between the hole of sealed clamping ring and the airtight dish, frictional force is little when can guaranteeing sealed clamping ring and gland and airtight sealed dish rotation each other, rotates more smoothly.

Furthermore, an oil cup suitable for automatically supplementing oil to the roller pins of the inner hole is arranged on the peripheral surface of the sealing pressure ring, and the use is convenient.

Furthermore, the gear box body is provided with an anti-rotation plate fixedly connected with the cover plate and the sealing compression ring, so that the sealing compression ring is prevented from rotating along with the machine tool spindle.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

1. the chuck of the utility model is sequentially and fixedly provided with a chuck body, an inner sleeve and a gas distribution ring component along the axial direction, the rear end of the chuck body is sequentially provided with a driving component and a driven gear component which are sleeved on the inner sleeve along the axial direction, the gas distribution ring component is coaxially and fixedly arranged at the rear end of the inner sleeve, and the gas distribution ring component is sleeved with a cover plate which is fixedly arranged at the rear end of the driven gear component; this structural design is compact for the whole axial dimension of chuck reduces, has effectively shortened air chuck's cutting tails.

2. The utility model discloses be equipped with on the gear box body peripheral surface and be suitable for the drive the rotatory speed reducer of driven gear, the speed reducer has been assembled in advance, and it is more convenient to use, and chuck body, base subassembly and driven gear subassembly constitute a whole jointly simultaneously, effectively avoid inner structure to expose, have improved the holistic dustproof effect of chuck greatly.

3. The utility model discloses the chuck body adopts aluminium system material, reduces greatly for general steel chuck weight, has reduced the inertia of the chuck body, and cast aluminium processing cycle is short simultaneously, and production efficiency is fast, and through accurate aluminum casting, also can reduce the machining allowance, improves the output of the chuck body.

4. The utility model discloses the chuck body is equipped with the recess, further lightens the weight of chuck body to reduce the inertia of chuck body.

5. The utility model discloses drive assembly includes pneumatic assembly and pneumatic assembly driven transmission assembly, and transmission assembly adopts gear drive, drives the motion of jack catch subassembly through gear drive, and the transmission is stable, and control is accurate, realizes that two liang of linkages of four jack catch mechanisms are from feeling relieved, the action of mutual noninterference again.

6. The utility model discloses the base subassembly includes the integral type base, and the structure is more stable, for split type structure, has saved the installation department, can effectively reduce the base height when more convenient, and then reduces the whole height of chuck, has solved the pipe sheet all-in-one walking crossbeam too high, and chuck inertia is big and the vibration that leads to, and then leads to the problem that machining precision is not good.

7. The utility model discloses the top of the outer peripheral face of integral type base is equipped with rings, is convenient for hoist the transportation for it is more convenient to install.

8. The utility model discloses be equipped with the eyehole lid on gear box's the outer peripheral face, can observe the inside gear drive's of chuck condition through the eyehole lid, observe whether gear engagement is lubricated abundant, avoid dry meshing noise, gear damage.

9. The utility model discloses be equipped with proximity switch on gear box's the outer peripheral face, be equipped with on the driven gear outer peripheral face with proximity switch assorted bolt, can respond to chuck rotation angle, be convenient for satisfy the processing demand that needs special rotation angle.

10. The utility model adopts the air inlet structure of the air distribution ring, and the chuck can not rotate when clamping the parts; after the parts are clamped, one-way pressure maintaining of the air path is realized through a check valve in an external air path, the pressure maintaining time can be more than 12 hours, and the influence of sudden air cut-off during product processing can be avoided.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a rear view of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the present invention.

Fig. 4 is a partially enlarged view at a.

Fig. 5 is a partial enlarged view of B.

Fig. 6 is a schematic structural diagram of the driving assembly of the present invention.

The reference numbers in the drawings are:

the chuck comprises a chuck body 1, a sliding part 11, a first boss 111, an arc-shaped groove 12, an inlaid strip 13 and a pressing strip 14;

an inner sleeve 2;

the gas distribution ring assembly 3, the gas sealing disc 31, the flange part 311, the first gas channel 312, the third gas channel 313, the sealing press ring 32, the gas inlet 321, the gas outlet 322, the gas channel groove 323, the sealing ring 324, the annular groove 325, the sealing gland 33 and the second gas channel 331;

the jaw assembly 4, the sliding block 41, the positioning key slot 411, the second boss 412, the tooth slot 413 and the jaw mechanism 42;

the driven gear assembly 5, the driven gear 51, the gear box body 52, the sight hole cover 521, the proximity switch 522 and the anti-rotation plate 53;

a cover plate 6;

the base component 7, the bearing 71, the base 72, the hanging ring 721, the positioning groove 722 and the recess 723;

the transmission assembly 8, the internal gear plate 81, the external gear plate 82, the first bridge gear assembly 83, the first rotating shaft 831, the first gear 832, the second gear 833, the second bridge gear assembly 84, the second rotating shaft 841, the third gear 842 and the fourth gear 843;

the pneumatic assembly 9, the first cylinder assembly 91, the first cylinder 911, the first mounting pin 912, the first connecting block 913, the first guide pin 914, the first side lug 915, the second cylinder assembly 92, the second cylinder 921, the second mounting pin 922, the second connecting block 923, the second guide pin 924, the second side lug 925 and the cylinder housing 93;

a speed reducer 10.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

(example 1)

Referring to fig. 1 to 6, the front-mounted air chuck with a pre-installed speed reducer of the present embodiment, which has an outer diameter of 520mm, includes a chuck body 1, an inner sleeve 2 and a gas distribution ring assembly 3, which are fixedly connected in sequence along an axial direction of the chuck; chuck body 1 adopts cast aluminium spare, reduces greatly for general steel chuck weight, has reduced the inertia of chuck body, and cast aluminium processing cycle is short simultaneously, and production efficiency is fast, and through accurate aluminum casting, also can reduce the machining allowance, improves the output of chuck body. The front end of the chuck body 1 is provided with a jaw component 4; the rear end of the chuck body 1 is sequentially provided with a driving assembly and a driven gear assembly 5 which are sleeved on the inner sleeve 2 along the axial direction, and the gas distribution ring assembly 3 is coaxially and fixedly arranged at the rear end of the inner sleeve 2; the gas distribution ring component 3 is sleeved with a cover plate 6 fixedly arranged at the rear end of the driven gear component 5. This embodiment structural design is compact for the whole axial dimensions of chuck reduces, has effectively shortened air chuck's cutting tails.

The rear end of the chuck body 1 is also provided with a base component 7 which is coaxially and fixedly arranged on the driving component and is connected with the driven gear component 5; the driving assembly comprises a transmission assembly 8 and a pneumatic assembly 9; the driven gear assembly 5 includes a driven gear 51 and a gear housing 52, and the gear housing 52 is provided on an outer peripheral surface thereof with a speed reducer 10 adapted to drive the driven gear 51 to rotate. This embodiment assembles speed reducer 10 in advance, and it is more convenient to use, and chuck body 1, base subassembly 7 and driven gear subassembly 5 constitute a whole jointly simultaneously, effectively avoid inner structure to expose, have improved the holistic dustproof effect of chuck greatly.

Four sliding parts 11 are uniformly distributed at the front end of the chuck body 1, and arc-shaped grooves 12 are formed between the adjacent sliding parts 11, so that the weight of the chuck body is further reduced, and the inertia of the chuck body is reduced.

In the embodiment, the gas distribution ring gas inlet structure is adopted, and the chuck cannot rotate when a part is clamped; through the check valve in the outside gas circuit behind the clamping part, realize the one-way pressurize of gas circuit, the dwell time can reach more than 12 hours, can make the product add man-hour not influenced by disconnected gas suddenly, and concrete structure is as follows: the gas distribution ring assembly 3 is fixedly arranged at the rear end of the cover plate 6, and the gas distribution ring assembly 3 is respectively communicated with an external gas source and the pneumatic assembly 9 and comprises a gas sealing disc 31, a sealing pressure ring 32 and a sealing gland 33; the gas seal disk 31 is provided with a flange portion 311; the sealing press ring 32 and the sealing gland 33 are sequentially sleeved on the air sealing disc 31; the flange portion 311 and the seal gland 33 are respectively provided on both sides of the seal pressing ring 32; the gas sealing disc 31 is fixedly arranged on the inner sleeve 2, and the sealing gland 33 is fixedly connected on the gas sealing disc 31; an air inlet 321 and an air outlet 322 communicated with an external air source are arranged on the outer peripheral surface of the sealing press ring 32. Two sides of the sealing press ring 32 are provided with an air path groove 323, a sealing ring 324 which is in clearance fit along the axial direction is arranged in the air path groove 323, and a plurality of air holes are uniformly distributed on the sealing ring 324; the gas sealing disc 31 is provided with a first gas channel 312 communicated with the gas channel 323 at one side through the gas hole; the sealing gland 33 is provided with a second air passage 331 communicated with the other side air passage groove 323 through the air hole; the air sealing disk 31 is also provided with a third air passage 313 communicated with the second air passage 331. The two sides of the sealing press ring 32 are also provided with annular grooves 325, balls are arranged in the annular grooves 325, a roller pin is arranged between the inner hole of the sealing press ring 32 and the air sealing disc 31, friction force is small when the sealing press ring 32 and the sealing press cover 33 and the air sealing disc 31 rotate mutually, and rotation is smooth. The peripheral surface of the sealing press ring 31 is provided with an oil cup which is suitable for automatically supplementing oil to the roller pin of the inner hole, and the use is convenient.

The jaw assembly 4 comprises two pairs of sliding blocks 41 and jaw mechanisms 42; the slide block 41 is slidably mounted on the slide portion 11, and the click mechanism 42 is detachably mounted on the slide block 41. The sliding part 11 is provided with a first boss 111, two sides of the first boss 111 are provided with stainless steel gibs 13, and the front end surface of the gib 13 is higher than the front end surface of the first boss 111; chuck body 1 adopts aluminium system material, compares in steel material's traditional chuck body 1, and weight alleviates greatly, but simultaneously the surface hardness is lower, adopts stainless steel's panel 13, can effectively avoid sliding block 41 at gliding in-process wearing and tearing chuck body 1. The front end face of the sliding block 41 is provided with two positioning key slots 411, which is convenient for installing and adjusting the jaw mechanism; the rear part of the sliding block 41 is symmetrically provided with second bosses 412 extending outwards, and the outer side of the second boss 412 on one side is provided with tooth grooves 413 distributed in the direction of extension. The two sides of the sliding block 41 are provided with the pressing strips 14 which are fixedly connected with the chuck body 1 and have L-shaped cross sections, so that the sliding block 41 is limited to move only along the radial direction of the chuck.

The pneumatic assembly 9 includes a first cylinder assembly 91, a second cylinder assembly 92, and a cylinder housing 93.

The base assembly 7 includes a bearing 71 and an integral base 72; the inner ring of the bearing 71 is fixedly mounted on the cylinder housing 93; the outer race of the bearing 71 is fixedly mounted on a base 72. This embodiment base 72 adopts the integral type, and the structure is more stable, for split type structure, has saved the installation department, can effectively reduce the base height when more convenient, and then reduces the whole height of chuck, has solved the pipe sheet all-in-one walking crossbeam too high, and the chuck motion inertia is big and the vibration that leads to, and then leads to the not good problem of machining precision. The top of the outer peripheral surface of the base 72 is provided with a hanging ring 721, which is convenient for hoisting and transportation, and makes the installation more convenient. A positioning groove 722 is formed in the middle of the bottom of the base 72, and the laser cutting machine is convenient to mount. The front end face and the rear end face of the lower part of the base 72 are symmetrically provided with the sunken parts 723, so that the weight of the base 72 can be reduced, the material can be saved, the casting quality can be improved, and the casting defects such as shrinkage cavities, sand holes and the like can be avoided.

Driven gear 51 is fixed mounting in the rear end of cylinder dustcoat 93, and apron 6 is fixed mounting in the rear end of driven gear 51, and gear box 52 cover is established on driven gear 51 outer peripheral face and fixed mounting in base 72 rear end. The outer peripheral surface of the gear box body 52 is provided with a sight hole cover 521 and a proximity switch 522, so that the condition of gear transmission inside the chuck can be observed through the sight hole cover, whether gear meshing lubrication is sufficient or not is observed, and noise and gear damage caused by dry meshing are avoided. The outer peripheral surface of the driven gear 51 is provided with a bolt matched with the proximity switch 522, so that the rotation angle of the chuck can be sensed, and the processing requirement of needing a special rotation angle can be met conveniently.

This embodiment transmission assembly 8 adopts gear drive, drives jack catch assembly 4 through gear drive and moves, and the transmission is stable, and control is accurate, realizes that two liang of linkages of four jack catch mechanisms are from feeling relieved, mutual interference action again, and concrete structure is as follows: the transmission assembly 8 comprises an inner fluted disc 81 and an outer fluted disc 82 which are sequentially sleeved on the inner sleeve 2, and a first bridge gear assembly 83 and a second bridge gear assembly 84 which are rotatably arranged on the chuck body 1 and the cylinder outer cover 93 and respectively meshed with the inner fluted disc 81 and the outer fluted disc 82. Roller pins are arranged between the inner fluted disc 81 and the outer fluted disc 82 and the inner sleeve 2, so that the friction force between the fluted discs and the inner sleeve is greatly reduced. The front part of the inner sleeve 2 is provided with an oil path corresponding to the inner fluted disc 81 and the outer fluted disc 82, the chuck body 1 is provided with an oil hole communicated with the oil path, lubricating oil can be directly added to the roller pins at the fluted disc from the outside of the chuck, and the maintenance is convenient. A pair of first and second bridge gear assemblies 83 and 84 are provided, respectively. The first bridge gear assembly 83 includes a first rotating shaft 831 and a first gear 832 and a second gear 833 coaxially and fixedly mounted on the first rotating shaft 831, the first gear 832 and the second gear 833 are respectively engaged with the internal gear disc 81 and the tooth grooves 413 of the pair of sliding blocks 41; the second bridge gear assembly 84 includes a second rotating shaft 841, and a third gear 842 and a fourth gear 843 coaxially and fixedly mounted on the second rotating shaft 841, wherein the third gear 842 and the fourth gear 843 are respectively engaged with the external toothed disc 82 and the tooth grooves 413 of the other pair of sliding blocks 41.

The first cylinder assembly 91 includes a first cylinder 911, a first mounting pin 912, a first connecting block 913, a first guide pin 914, and a first side ear 915; the first cylinder 911 is arranged at the rear side of the cylinder housing 93 and is rotatably connected to the first mounting pin 914; the first mounting pin 912 penetrates through the cylinder housing 93 along the front-back direction and is rotatably mounted between the cover plate 6 and the chuck body 1; the first guide pin 914 is fixedly connected with the first cylinder 911 through a first connecting block 913; one end of the first side lug 915 is fixedly connected with the inner fluted disc 81, and the other end of the first side lug 915 is rotatably connected with the first guide pin 914; the second cylinder assembly 92 includes a second cylinder 921, a second mounting pin 922, a second connecting block 923, a second guide pin 924, and a second side lug 925; the second cylinder 921 is arranged at the rear side of the cylinder housing 93 and is rotatably connected to the second mounting pin 922; the second mounting pin 922 penetrates the cylinder housing 93 in the front-rear direction and is rotatably mounted between the cover plate 6 and the chuck body 1; the second guide pin 924 is fixedly connected with the second cylinder 921 through a second connecting block 923; one end of the second side lug 925 is fixedly connected to the external toothed disc 82, and the other end is rotatably connected to the second guide pin 924.

The gear box body 52 is also provided with an anti-rotation plate 53 for fixedly connecting the cover plate 6 and the sealing press ring 32, so that the sealing press ring 32 is prevented from rotating along with the machine tool spindle.

The utility model discloses a theory of operation: when air is fed, an air inlet pipe of an external air source enters the left air path groove 321 through the air inlet 321 of the sealing support ring 32 and is communicated with the four air cylinders through air pipes along the first air passage 312, so that power is provided for the air cylinders to move; during air exhaust, the air cylinder is communicated with the third air passage 313 through an air pipe, enters the right air passage groove 321 of the sealing support ring 32 through the third air passage 313 and the second air passage 331 of the sealing gland 33, and is communicated with an external air source through the air outlet 322. It should be noted that the air inlet 321 and the air outlet 322 are opposite, air can enter from the air inlet 321 or from the air outlet 322, so as to realize the reciprocating motion of the cylinder, and the direction change of the air flow is controlled by the solenoid valve of the external air passage.

When the chuck is attached to a laser cutting machine, the speed reducer 10 rotates the driven gear 51, thereby rotating the air sealing disk 31, the inner ring of the bearing 71, the inner sleeve 2, and the chuck body 1. When the part is clamped, the chuck does not rotate. Two first air cylinders 911 are symmetrically arranged, the first air cylinders 911 drive the first guide 914 to move so as to drive the internal gear disc 81 connected with the first side lug 915 to rotate, the internal gear disc 81 drives the first gear 832 of the first carrier gear assembly 83 to rotate, and then drives the second gear 833 coaxially and fixedly installed on the first rotating shaft 831 with the first gear 832 to rotate, and further drives the sliding block 41 to slide along the sliding part 11 of the chuck body 1, so that the movement of the pair of jaw mechanisms 42 is realized; similarly, the second cylinder 921 is equipped with two, thereby the second cylinder 921 drive second uide pin 924 motion drives the external toothed disc 82 rotatory, drives another pair of jack catch subassembly 4's sliding block 41 through second bridge gear assembly 84 and removes to realize the motion of another pair of jack catch mechanism 42, and then realize the clamping of part.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a leading type air chuck of pre-installation speed reducer which characterized in that: comprises a base component (7), a chuck body (1), an inner sleeve (2) and a gas distribution ring component (3) which are fixedly connected in sequence; the chuck body (1) is made of aluminum materials; the front end of the chuck body (1) is provided with a jaw component (4); a driving assembly and a driven gear assembly (5) which are sequentially sleeved on the inner sleeve (2) are arranged between the chuck body (1) and the gas distribution ring assembly (3); the base assembly (7) comprises a bearing (71) and a base (72); the inner ring and the outer ring of the bearing (71) are respectively and fixedly connected with the driving assembly and the base (72); the driven gear assembly (5) comprises a driven gear (51) fixedly connected with the driving assembly and a gear box body (52) sleeved on the peripheral surface of the driven gear (51) and fixedly arranged at the rear end of the base (72); the chuck also comprises a speed reducer (10) which is fixedly arranged on the peripheral surface of the gear box body (52) and is suitable for driving the driven gear (51) to rotate; a cover plate (6) fixedly arranged at the rear end of the driven gear (51) is sleeved on the gas distribution ring assembly (3); the driving assembly comprises a transmission assembly (8) and a pneumatic assembly (9); the pneumatic assembly (9) is communicated with an external air source through the air distribution ring assembly (3) and is suitable for driving the jaw assembly (4) to move.

2. The front-mounted air chuck with a pre-installed speed reducer as claimed in claim 1, wherein: the chuck is characterized in that four sliding parts (11) are uniformly distributed at the front end of the chuck body (1), and arc-shaped grooves (12) are formed between every two adjacent sliding parts (11).

3. The front-mounted air chuck with a pre-installed speed reducer as claimed in claim 1, wherein: and a hanging ring (721) is arranged at the top of the peripheral surface of the base (72).

4. The front-mounted air chuck with a pre-installed speed reducer as claimed in claim 1, wherein: the outer peripheral surface of the gear box body (52) is provided with a sight hole cover (521) and a proximity switch (522).

5. The front-mounted air chuck with a pre-installed speed reducer as claimed in claim 1, wherein: the pneumatic assembly (9) comprises a first cylinder assembly (91), a second cylinder assembly (92) and a cylinder housing (93).

6. The forward air chuck of a pre-installed speed reducer of claim 5, wherein: the transmission assembly (8) comprises an inner fluted disc (81) and an outer fluted disc (82) which are sequentially sleeved on the inner sleeve (2), and a first bridge gear assembly (83) and a second bridge gear assembly (84) which are rotatably arranged on the chuck body (1) and the cylinder outer cover (93) and are respectively meshed with the inner fluted disc (81) and the outer fluted disc (82); the first bridge gear assembly (83) and the second bridge gear assembly (84) are respectively provided with a pair.

7. The forward air chuck of a pre-installed speed reducer of claim 5, wherein: the first cylinder assembly (91) comprises a first cylinder (911), a first mounting pin (912), a first connecting block (913), a first guide pin (914) and a first side lug (915); the first cylinder (911) is arranged at the rear side of the cylinder outer cover (93) and is rotatably connected to the first mounting pin (912); the first mounting pin (912) penetrates through the cylinder outer cover (93) along the front-back direction and is rotatably mounted between the cover plate (6) and the chuck body (1); the first guide pin (914) is fixedly connected with the first air cylinder (911) through a first connecting block (913); one end of the first side lug (915) is fixedly connected with the inner fluted disc (81), and the other end of the first side lug is rotatably connected with the first guide pin (914); the second cylinder assembly (92) comprises a second cylinder (921), a second mounting pin (922), a second connecting block (923), a second guide pin (924) and a second side lug (925); the second cylinder (921) is arranged at the rear side of the cylinder outer cover (93) and is rotatably connected to the second mounting pin (922); the second mounting pin (922) penetrates through the cylinder outer cover (93) along the front-back direction and is rotatably mounted between the cover plate (6) and the chuck body (1); the second guide pin (924) is fixedly connected with the second air cylinder (921) through a second connecting block (923); one end of the second side lug (925) is fixedly connected with the outer fluted disc (82), and the other end of the second side lug is rotatably connected with the second guide pin (924).

8. The front-mounted air chuck with a pre-installed speed reducer as claimed in claim 1, wherein: the gas distribution ring assembly (3) comprises a gas sealing disc (31), a sealing pressure ring (32) and a sealing gland (33); the gas sealing disc (31) is provided with a flange part (311); the sealing press ring (32) is rotatably sleeved on the gas sealing disc (31); the flange part (311) and the sealing gland (33) are respectively arranged on two sides of the sealing pressure ring (32); the front end and the rear end of the air sealing disc (31) are respectively fixedly connected with the rear end of the inner sleeve (2) and the front end of the sealing gland (33); and the outer peripheral surface of the sealing press ring (32) is provided with an air inlet (321) and an air outlet (322) which are communicated with an external air source.