CN213646354U

CN213646354U - Clamping chuck for laser cutting device

Info

Publication number: CN213646354U
Application number: CN202021995533.5U
Authority: CN
Inventors: 姜维杰; 江渊
Original assignee: Changzhou Runyuan Precision Machinery Technology Co ltd
Current assignee: Changzhou Runyuan Precision Machinery Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-07-09
Anticipated expiration: 2030-09-14

Abstract

The utility model belongs to the technical field of press from both sides dress equipment, a laser cutting device is with pressing from both sides tight chuck is related to. The clamping chuck comprises a chuck shell fixedly connected along the axial direction of the chuck and jaw assemblies arranged on the chuck shell, wherein a plurality of jaw assemblies are driven by a corresponding driving assembly, and the number of the driving assemblies is the same as that of the jaw assemblies; the driving assembly comprises a main driving wheel, a driven driving wheel connected with the main driving wheel through a gear and a driving cylinder driving the driving gear, the driving cylinder drives the driving gear to rotate, the driving gear drives the driving wheel to transmit power to the chuck shell from the driving wheel, and the main driving wheel and the driven driving wheel are connected through a connecting shaft to form a gap bridge gear set. Different clamping jaw assemblies in the clamping chuck are driven by different cylinders, are independent from each other and can be driven synchronously, the service life of the driving assemblies is long, and the mutual interference influence is low; different parts can be clamped according to production requirements.

Description

Clamping chuck for laser cutting device

Technical Field

The utility model belongs to the technical field of press from both sides dress equipment, concretely relates to laser cutting device is with pressing from both sides tight chuck.

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. 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.

With the increasing market expansion of laser cutting devices, pneumatic clamping chucks are increasingly used. The pneumatic chuck in the prior art usually adopts the same driving cylinder to drive a plurality of clamping jaws, and has good driving consistency; however, the technology needs a driving cylinder to provide larger driving force, the driving cylinder has large load, is easy to damage and has short service life; a plurality of jack catchs simultaneous movement, mutual interference only can press from both sides the body or the plate body of pressing from both sides the corresponding structure with the jack catch, and the range of application is narrow, and the flexibility is processed in man-hour, needs the clamping chuck of multiple model, increases manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the defects, the utility model provides a clamping chuck for a laser cutting device, different clamping jaw assemblies are driven by different cylinders, are mutually independent and can be synchronously driven, the service life of the driving assembly is long, and the mutual interference influence is low; different parts can be clamped according to production requirements.

The utility model provides a technical scheme that its technical problem adopted as follows: a clamping chuck for a laser cutting device comprises a chuck shell fixedly connected along the axial direction of the chuck and jaw assemblies arranged on the chuck shell, wherein a plurality of jaw assemblies are driven by a corresponding driving assembly, and the number of the driving assemblies is the same as that of the jaw assemblies;

the driving assembly comprises a main driving wheel, a driven driving wheel connected with the main driving wheel through a gear and a driving cylinder driving the driving gear, the driving cylinder drives the driving gear to rotate, the driving gear drives the driving wheel to transmit power to the chuck shell from the driving wheel, and the main driving wheel and the driven driving wheel are connected through a connecting shaft to form a gap bridge gear set.

Further, the chuck shell comprises a chuck body, a connecting sleeve, a bearing inner ring and a sealing disc, wherein a front cover plate is arranged at the front end of the connecting sleeve axially arranged on the chuck body, and a rear cover plate is arranged at the rear end of the connecting sleeve axially arranged on the chuck body;

a fluted disc is fixedly arranged on the connecting sleeve, and is in gear transmission with the main driving wheel and drives the jaw assembly through the auxiliary driving wheel; the jaw assembly is arranged on the outer surface of the front cover plate;

and a bearing outer ring fixedly connected with the outer edge of the sealing disc is arranged outside the bearing inner ring, and the bearing outer ring is fixedly arranged on the bearing seat.

Furthermore, the jaw assembly comprises a sliding toothed chain, a toothed chain cover, a gear shaft supporting piece and a jaw, the toothed chain cover is fixed at the front end of the front cover plate, and a sliding groove is formed in the front end of the toothed chain cover;

one side of the sliding toothed chain penetrates through the sliding groove to be fixedly connected with the clamping jaw, the gear shaft supporting piece is fixed at the rear end of the front cover plate, and a rotatable carrier gear set is arranged between the gear shaft supporting piece and the toothed chain cover; the sliding toothed chain is connected with the driven wheel gear.

Furthermore, an organ shield is fixedly arranged at one end, away from the circle center of the front cover plate, of the gear chain shield.

Furthermore, dustproof baffles are arranged on two sides of the clamping jaw.

Furthermore, the contact surface of the connecting sleeve and the bearing inner ring and the contact surface of the bearing inner ring and the bearing outer ring are provided with a plurality of balls, and the balls of each contact surface form an annular structure coaxial with the connecting sleeve.

Furthermore, a speed reducer is fixedly connected to the rear end of the bearing seat, the speed reducer comprises a gear cover, a driving gear, a driven gear and an adjusting sleeve, the gear cover is fixedly arranged at the rear end of the bearing seat through screws, the gear cover comprises a first cover chamber and a second cover chamber which are integrally formed, the second cover chamber is arranged on the outer edge of the first cover chamber, the driven gear is fixedly arranged in the first cover chamber, the driven gear is fixedly connected with the rear end of the sealing disc, the driving gear is arranged in the second cover chamber, the driving gear is meshed with the driven gear, and the rear end of the driving gear is fixedly connected with the adjusting sleeve;

and the tooth part meshed with the outer ring of the driving gear and the outer ring of the driven gear is helical teeth.

Furthermore, a plurality of screw holes are formed in the surface, connected with the bearing seat, of the gear cover, and the gear cover is fixedly connected with the bearing seat through the screw holes.

Furthermore, proximity switches are arranged on the rear end face of the bearing seat and the rear end face of the driving gear.

Furthermore, a plurality of positioning devices are arranged between the gear cover and the rear cover plate, each positioning device comprises a positioning shaft and a positioning seat, each positioning seat is of an L-shaped structure, one end of each positioning seat is fixed on the gear cover, and the other end of each positioning seat is suspended; the U-shaped recess is arranged on the positioning seat at one suspended end and is clamped with the positioning shaft arranged on the rear cover plate.

The utility model has the advantages that:

1. by adopting the clamping chuck, the driving assemblies corresponding to the number of the clamping jaw assemblies are arranged in the clamping chuck, the four driving assemblies independently drive the corresponding clamping jaw assemblies, the four clamping jaws are linked in pairs and self-centering is realized, the mutual interference is avoided, the driving force required to be output by each driving assembly is greatly reduced compared with the original driving force, and the service life is long; the tightness and the path of the jaw assembly can be controlled according to production requirements, and different parts can be clamped.

2. The clamping jaw assembly can effectively maintain pressure after clamping parts, and is not influenced by sudden air cut-off during product processing.

3. The introduced speed reducer can be disassembled and adjusted, so that the customization requirements of customers and the installation requirements of the front chuck under different scenes are met; the tooth part meshed with the outer ring of the driving gear and the outer ring of the driven gear is helical teeth. The meshing performance of the helical gears is good, the transmission is stable, the noise is low, the overlap ratio of the helical gears is large, the load of each pair of gears is reduced, and the bearing capacity of the gears is improved.

4. The introduced positioning device is beneficial to the matching installation among the chuck shell, the driving assembly and the speed reducer, the assembly has a benchmark, and the assembly precision is high; the preset threaded holes and the existing matching are matched to form the positioning pins, so that the rotation precision and the transmission precision of the driven gear and the fluted disc arranged on the bearing are effectively guaranteed, and the noise is effectively reduced.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic view of the main view angle structure of the present invention;

fig. 2 is a schematic view of the rear view angle structure of the present invention;

FIG. 3 is a schematic structural view of the hidden front cover plate and the jaw assembly of the present invention;

FIG. 4 is a schematic structural view of the jaw assembly of the present invention;

FIG. 5 is a schematic structural view of the hidden sealing disc of the present invention;

fig. 6 is a schematic structural view of the gear cover of the speed reducer of the present invention;

FIG. 7 is a schematic view of the rear view structure of the present invention after hiding the gear cover, the rear cover plate and the sealing disc;

wherein: the chuck comprises a chuck shell 1, a chuck body 11, a connecting sleeve 12, a bearing inner ring 13, a sealing disc 14, a front cover plate 15, a rear cover plate 16, a fluted disc 17, a bearing outer ring 18, a bearing seat 19, a bearing seat 10, a ball, a jaw assembly 2, a sliding toothed chain 21, a toothed chain cover 22, a gear shaft support 23, jaws 24, a sliding chute 25, an organ shield 26, a dustproof baffle plate 27, a driving assembly 3, a main driving wheel 31, a driven driving wheel 32, a driving cylinder 33, a connecting shaft 34, a speed reducer 4, a gear cover 41, a driving gear 42, a driven gear 43, an adjusting sleeve 44, a first cover chamber 45, a second cover chamber 46, a screw hole 47, a proximity switch 5, a positioning device 6, a positioning shaft 61, a positioning seat 62 and a U-shaped recess 63.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-7, a clamping chuck for a laser cutting device comprises a chuck housing 1 fixedly connected along an axial direction of the chuck, and jaw assemblies 2 arranged on the chuck housing 1, wherein a plurality of jaw assemblies 2 are driven by a corresponding driving assembly 3, and the number of the driving assemblies 3 is the same as that of the jaw assemblies 2; in the embodiment, four jaw assemblies are selected and four corresponding groups of driving assemblies 3 are arranged;

the driving assembly 3 comprises a main driving wheel 31, a driven driving wheel 32 connected with the main driving wheel 31 through a gear, and a driving cylinder 33 driving the driving gear 42, the driving cylinder 33 drives the driving gear 42 to rotate, the driving gear 42 transmits power to the chuck shell 1 from the driving wheel 32, and the main driving wheel 31 and the driven driving wheel 32 are connected through a connecting shaft 34 to form a gap bridge gear set.

By adopting the clamping chuck, the driving assemblies 3 corresponding to the number of the clamping jaw assemblies are arranged in the clamping chuck, the four driving assemblies 3 independently drive the corresponding clamping jaw assemblies, the four clamping jaws are linked in pairs and self-centering is realized, mutual interference is avoided, the driving force required to be output by each driving assembly 3 is greatly reduced compared with the original driving force, and the service life is long; the tightness and the path of the jaw assembly can be controlled according to production requirements, and different parts can be clamped.

The chuck shell 1 comprises a chuck body 11, a connecting sleeve 12, a bearing inner ring 13 and a sealing disc 14, wherein a front cover plate 15 is arranged at the front end of the connecting sleeve 12 axially arranged on the chuck body 11, and a rear cover plate 16 is arranged at the rear end of the connecting sleeve 12 axially arranged on the chuck body 11; a fluted disc 17 is fixedly arranged on the connecting sleeve 12, the fluted disc 17 is in gear transmission with a main driving wheel 31, and the jaw assembly 2 is driven by a secondary driving wheel 32; the jaw assembly 2 is arranged on the outer surface of the front cover plate 15; and a bearing outer ring 18 fixedly connected with the outer edge of the sealing disc 14 is arranged outside the bearing inner ring 13, and the bearing outer ring 18 is fixedly arranged on a bearing seat 19.

The jaw assembly 2 comprises a sliding toothed chain 21, a toothed chain cover 22, a gear shaft supporting piece 23 and a jaw 24, the toothed chain cover 22 is fixed at the front end of the front cover plate 15, and a sliding groove 25 is formed in the front end of the toothed chain cover 22;

one side of the sliding toothed chain 21 passes through the sliding groove 25 to be fixedly connected with the clamping jaw 24, the gear shaft supporting piece 23 is fixed at the rear end of the front cover plate 15, and a rotatable carrier gear set is arranged between the gear shaft supporting piece 23 and the toothed chain cover 22; the sliding gear train 21 is geared with a driven wheel 32.

In the jaw assembly 2, the driving wheel 32 drives the sliding sprocket 21 to move, the power of the driving wheel 32 rotating in a circle is transmitted to the sliding sprocket 21 to form a chain belt movement in a linear direction, the sliding sprocket 21 is connected with the jaws 24, and finally the jaws 24 are pushed to move, so that the tightness and the moving distance are adjusted.

An organ shield 26 is fixedly arranged at one end of the chain guard 22 far away from the center of the front cover plate 15, so that heat dissipation is facilitated, and dust can enter the chuck shell from a gap conveniently.

And two sides of the clamping jaw 24 are provided with dustproof baffles 27, so that the dustproof performance of the clamping jaw is effectively improved.

In the actual use process, the end part of the clamping jaw 24 of the clamping jaw assembly 2 can be further provided with a roller, and the arranged roller can enable the pipe to move smoothly and cause no damage to the surface under the continuous processing state.

The contact surface of the connecting sleeve 12 and the bearing inner ring 13 and the contact surface of the bearing inner ring 13 and the bearing outer ring 18 are respectively provided with a plurality of balls 10, the balls 10 of each contact surface form an annular structure coaxial with the connecting sleeve 12, the introduced balls can reduce the friction between the connecting sleeve and the bearing inner ring 13 and between the bearing inner ring 13 and the bearing outer ring 18, and the service life of the formed bearing is long.

The rear end of the bearing seat 19 is fixedly connected with a speed reducer 4, the speed reducer 4 comprises a gear cover 41, a driving gear 42, a driven gear 43 and an adjusting sleeve 44, the gear cover 41 is fixedly arranged at the rear end of the bearing seat 19 through screws, the gear cover 41 comprises a first cover chamber 45 and a second cover chamber 46 which are integrally formed, the second cover chamber 46 is arranged on the outer edge of the first cover chamber 45, the driven gear 43 is fixedly arranged in the first cover chamber 45, the driven gear 43 is fixedly connected with the rear end of the sealing disc 14, the driving gear 42 is arranged in the second cover chamber 46, the driving gear 42 is meshed with the driven gear 43, and the rear end of the driving gear 42 is fixedly connected with the adjusting sleeve 44;

the tooth part of the outer ring meshing of the driving gear 42 and the driven gear 43 is helical tooth.

In the reduction gear 4 described above, the reduction gear 4 achieves a reduction effect by the drive gear 42 having a small diameter driving the driven gear 43 having a large diameter. The meaning that sets up a plurality of screw holes 47 on the face of being connected of gear cover 41 and bearing frame 19 lies in: under the installation occasion of difference, second cover room 46 probably causes the occupation of space and leads to unable installation, only needs to rotate certain angle with gear cover 41 this moment, cooperates a plurality of screw holes 47 can install the completion gear cover, and the space utilizes rationally, satisfies customer's different requirements under the different installation scenes.

A plurality of screw holes 47 have been seted up on the face that gear cover 41 with bearing frame 19 is connected, gear cover 41 through screw hole 47 with bearing frame 19 fixed connection, bearing frame 19 rear end face reaches all be equipped with proximity switch 5 on the driving gear 42 rear end face.

The chuck shell 11 is mainly used for sealing and installing and fixing the driving gear 42 and the driven gear 43, the proximity switch 5 can be installed on the chuck shell, and the proximity switch 5 can be installed at different places; the chuck shell can rotate, different installation angles of the speed reducer are adjusted, the speed reducer can be installed on the left side horizontally or on the right side, the speed reducer can also be installed at other angles, the inspection cover on the chuck shell is used for checking gear engagement, and the speed reducer flange on the chuck shell is used for installing and fixing the speed reducer; and a threaded hole for gear engagement adjustment is processed on the chuck shell and used for adjusting gear engagement.

A plurality of positioning devices 6 are arranged between the gear cover 41 and the rear cover plate 16, each positioning device 6 comprises a positioning shaft 61 and a positioning seat 62, each positioning seat 62 is of an L-shaped structure, one end of each positioning seat 62 is fixed on the gear cover 41, and the other end of each positioning seat 62 is suspended; a U-shaped recess 63 is arranged on the positioning seat 62 at the suspended end, and the U-shaped recess 63 is clamped with the positioning shaft 61 arranged on the rear cover plate 16.

When the positioning device 6 is installed on the bearing seat 19, the bottom surface can be processed, the form and position tolerance is ensured, the assembly has more standard, and the assembly precision is ensured; in this embodiment, a thread may be further disposed on the bottom surface of the bearing seat 19 for jacking up the bearing seat 19 to facilitate chuck adjustment and padding.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The clamping chuck for the laser cutting device is characterized by comprising a chuck shell (1) fixedly connected along the axial direction of the chuck and jaw assemblies (2) arranged on the chuck shell (1), wherein a plurality of jaw assemblies (2) are driven by a corresponding driving assembly (3), and the number of the driving assemblies (3) is the same as that of the jaw assemblies (2);

drive assembly (3) include main drive wheel (31), with main drive wheel (31) gear connection from drive wheel (32) and drive actuating gear (42) drive actuating cylinder (33), it rotates to drive actuating cylinder (33) drive actuating gear (42), on drive actuating gear (42) transmission is followed drive wheel (32) back with power transmission to chuck casing (1), main drive wheel (31) and from drive wheel (32) connect through connecting axle (34) and constitute the gear train of passing a bridge.

2. The clamping chuck for a laser cutting apparatus as set forth in claim 1, wherein: the chuck shell (1) comprises a chuck body (11), a connecting sleeve (12), a bearing inner ring (13) and a sealing disc (14), wherein a front cover plate (15) is arranged at the front end of the connecting sleeve (12) axially arranged on the chuck body (11), and a rear cover plate (16) is arranged at the rear end of the connecting sleeve (12) axially arranged on the chuck body (11);

a fluted disc (17) is fixedly arranged on the connecting sleeve (12), the fluted disc (17) is in gear transmission with the main driving wheel (31), and the jaw assembly (2) is driven by the auxiliary driving wheel (32); the jaw assembly (2) is arranged on the outer surface of the front cover plate (15);

the bearing inner ring (13) is externally provided with a bearing outer ring (18) fixedly connected with the outer edge of the sealing disc (14), and the bearing outer ring (18) is fixedly arranged on the bearing seat (19).

3. The clamping chuck for a laser cutting apparatus as set forth in claim 2, wherein: the jaw assembly (2) comprises a sliding toothed chain (21), a toothed chain cover (22), a gear shaft supporting piece (23) and a jaw (24), the toothed chain cover (22) is fixed at the front end of the front cover plate (15), and a sliding groove (25) is formed in the front end of the toothed chain cover (22);

one side of the sliding toothed chain (21) penetrates through the sliding groove (25) to be fixedly connected with the clamping jaw (24), the gear shaft supporting piece (23) is fixed at the rear end of the front cover plate (15), and a rotatable carrier gear set is arranged between the gear shaft supporting piece (23) and the toothed chain cover (22); the sliding toothed chain (21) is in gear connection with a driven wheel (32).

4. A clamping chuck for a laser cutting apparatus as set forth in claim 3, wherein: an organ shield (26) is fixedly arranged at one end of the gear chain shield (22) far away from the circle center of the front cover plate (15).

5. A clamping chuck for a laser cutting apparatus as set forth in claim 3, wherein: and two sides of the clamping jaw (24) are provided with dustproof baffles (27).

6. The clamping chuck for a laser cutting apparatus as set forth in claim 2, wherein: the contact surface of the connecting sleeve (12) and the bearing inner ring (13) and the contact surface of the bearing inner ring (13) and the bearing outer ring (18) are respectively provided with a plurality of balls (10), and the balls (10) of each contact surface form an annular structure coaxial with the connecting sleeve (12).

7. The clamping chuck for a laser cutting apparatus according to claim 2, wherein: the rear end of the bearing seat (19) is fixedly connected with a speed reducer (4), the speed reducer (4) comprises a gear cover (41), a driving gear (42), a driven gear (43) and an adjusting sleeve (44), the gear cover (41) is fixedly arranged at the rear end of the bearing seat (19) through a screw, the gear cover (41) comprises a first cover chamber (45) and a second cover chamber (46) which are integrally formed, the second housing chamber (46) is arranged on the outer edge of the first housing chamber (45), the driven gear (43) is fixedly arranged in the first cover chamber (45), the driven gear (43) is fixedly connected with the rear end of the sealing disc (14), the driving gear (42) is arranged in the second cover chamber (46), the driving gear (42) is meshed with the driven gear (43), the rear end of the driving gear (42) is fixedly connected with the adjusting sleeve (44);

the tooth part meshed with the outer rings of the driving gear (42) and the driven gear (43) is helical teeth.

8. The clamping chuck for a laser cutting apparatus as set forth in claim 7, wherein: the gear cover (41) with a plurality of screw holes (47) have been seted up on the face that bearing frame (19) are connected, gear cover (41) through screw hole (47) with bearing frame (19) fixed connection.

9. The clamping chuck for a laser cutting apparatus as set forth in claim 7, wherein: and proximity switches (5) are arranged on the rear end face of the bearing seat (19) and the rear end face of the driving gear (42).

10. The clamping chuck for a laser cutting apparatus as set forth in claim 7, wherein: a plurality of positioning devices (6) are arranged between the gear cover (41) and the rear cover plate (16), each positioning device (6) comprises a positioning shaft (61) and a positioning seat (62), each positioning seat (62) is of an L-shaped structure, one end of each positioning seat (62) is fixed on the gear cover (41), and the other end of each positioning seat (62) is suspended; a U-shaped recess (63) is arranged on the positioning seat (62) at the suspended end, and the U-shaped recess (63) is clamped with a positioning shaft (61) arranged on the rear cover plate (16).