CN218875188U

CN218875188U - Pneumatic clamping jaw device for grabbing through-flow fan blade parts

Info

Publication number: CN218875188U
Application number: CN202223153934.8U
Authority: CN
Inventors: 何兵; 林富坤
Original assignee: Guangdong Shunwei Automation Equipment Co ltd; Guangdong Sunwill Precising Plastic Co Ltd
Current assignee: Guangdong Shunwei Automation Equipment Co ltd; Guangdong Sunwill Precising Plastic Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-04-18
Anticipated expiration: 2032-11-25

Abstract

The utility model relates to a pneumatic clamping jaw device that is used for through-flow fan blade spare part to snatch, which comprises a chuck, a plurality of activity clamping jaw subassembly, the chuck is equipped with the inner chamber that is hollow structure, be equipped with reciprocating motion's piston on the inner chamber, the opening of chuck one end corresponds activity clamping jaw subassembly and is equipped with the spout, a plurality of activity clamping jaw subassembly is connected with the piston cooperation respectively, the piston drives a plurality of activity clamping jaw subassembly and makes the action of opening and shutting on the spout of chuck in reciprocating motion process, in order to loosen or clamping through-flow fan blade spare part, the axle core that corresponds through-flow fan blade spare part in the piston is equipped with the cavity portion, the design is hollow cavity portion in the middle of the piston, avoid the product axle core, the product axle core is declared to the cavity portion of piston in, the volume of pneumatic clamping jaw device is saved, because the product axle core is declared to the cavity portion of piston in, whole height or length when consequently shortening pneumatic clamping jaw device clamping product, the excircle of the direct centre gripping product of clamp pneumatic clamping jaw, all excircle products have been compatible.

Description

Pneumatic clamping jaw device for grabbing through-flow fan blade parts

Technical Field

The utility model relates to a work piece clamping technical field specifically is a pneumatic clamping jaw device that is used for through-flow fan blade spare part to snatch.

Background

Referring to fig. 8, the main components of the cross-flow fan blade include an end cover 26, an end cover fan blade 27, a shaft cover 28, a shaft cover fan blade 29, a middle segment fan blade 30, and the like;

through-flow fan blade ultrasonic wave automatic weld, common automatic weld is that each part of mechanical handle grabs one by one and gets to weld on the welding machine, and the spare part is grabbed and has following problem:

parts are grabbed by a pneumatic four-claw device, and all parts need to be compatible;

the end cover, the end cover fan blade, the shaft cover and the shaft core protrusion of the shaft cover fan blade need to be designed to be hollow in the pneumatic clamp, and the shaft core is avoided.

The pneumatic clamp of the interior standard of pneumatic element trade can't meet the demand, for example chinese patent document No. CN217433092U discloses an oil gas dual-purpose four-claw two-position centering rotary fixture, includes: the telescopic sleeve assembly comprises an outer telescopic sleeve and at least one inner telescopic sleeve which is sleeved on the inner side of the outer telescopic sleeve in a sliding mode, the outer telescopic sleeve and the inner telescopic sleeve can slide along the axis direction of the rotary main shaft, the rotary main shaft is provided with a fluid power channel for driving the telescopic sleeve assembly to slide, a clamping device for clamping a workpiece is arranged at the side end of the telescopic sleeve assembly, and the clamping device comprises a first clamping mechanism and a second clamping mechanism.

Therefore, a pneumatic clamping jaw device is required to be designed according to actual working condition requirements and is suitable for grabbing parts of the cross-flow fan blade.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pneumatic clamping jaw device that is used for through-flow fan blade spare part to snatch, through the hollow cavity portion of design in the middle of the piston, avoid the product axle core to the spare part that the through-flow fan blade was snatched in the adaptation.

The pneumatic clamping jaw device for grabbing the through-flow fan blade parts comprises a chuck and a plurality of movable clamping jaw assemblies, wherein the chuck is provided with an inner cavity in a hollow structure, a piston in reciprocating motion is arranged on the inner cavity, a sliding groove is formed in an opening at one end of the chuck and corresponds to the movable clamping jaw assemblies, the movable clamping jaw assemblies are respectively matched and connected with the piston, the piston drives the movable clamping jaw assemblies to open and close along the sliding groove of the chuck in the reciprocating motion process so as to loosen or clamp the through-flow fan blade parts, a hollow cavity part is arranged in the piston and corresponds to the axial core of the through-flow fan blade parts, a hollow cavity part is designed in the middle of the piston, a product axial core is avoided, the product axial core is extended into the cavity part of the piston, the size of the pneumatic clamping jaw device is saved, the overall height or the length of the pneumatic clamping jaw device when a product is clamped is shortened, the pneumatic clamping jaw device directly clamps the excircle of the product, and all excircle products are compatible.

The movable clamping jaw assemblies are provided with three or four, preferably four movable clamping jaw assemblies, so that the clamping is more stable and reliable.

An air inlet channel for air to enter the driving piston to move is arranged in the inner cavity of the chuck, and an air inlet hole communicated with the air inlet channel is formed in the chuck.

The air inlet channel and the air inlet hole form two air inlet parts arranged on the chuck, and the two air inlet parts are symmetrical left and right or up and down.

Each movable clamping jaw assembly comprises a clamping jaw and a sliding block which are connected, a first linear limiting part is arranged between each sliding block and the corresponding sliding groove, the sliding blocks are limited and installed on the sliding grooves, and the sliding blocks do reciprocating linear motion along the sliding grooves through the first linear limiting parts; in addition, an opening at one end of the sliding chute is provided with a limiting block to limit the movable stroke of the sliding block and limit the movable stroke of the piston, when the movable clamping jaw assembly is opened, the sliding block moves towards the limiting block, and the sliding block stops moving after contacting the limiting block; or a limiting part is arranged between the piston and the inner cavity of the chuck to limit the stroke of the forward or backward movement of the piston.

The clamping jaws and the sliding blocks are connected in a matched mode, different clamping jaws can be replaced according to the specification and the size of a product, a special clamp does not need to be manufactured additionally, and the universality is high.

The piston is provided with a plurality of bosses corresponding to each sliding block, connecting positions are arranged in each sliding block corresponding to the bosses, inclined guide grooves are formed in the bosses, guide portions are arranged in each sliding block corresponding to the guide grooves, the bosses are installed on the connecting positions in a sliding mode, the guide portions are limited on the guide grooves, and when the movable clamping jaw assembly moves in an opening and closing mode, the guide portions of the sliding blocks move in a reciprocating mode along the guide grooves.

A first sealing ring is arranged between the inner cavity of the chuck and the piston, the first sealing ring is sleeved on the piston, a first annular groove is formed in the inner cavity of the chuck, and the first sealing ring is limited in the first annular groove.

A second annular groove is formed in the outer surface of the piston, and a Glare ring for a shaft is arranged on the second annular groove; the shaft is limited and assembled between the second annular groove and the inner cavity by a Gray ring.

A cover plate is arranged at an opening at the other end of the chuck, a first limiting installation groove is formed in the inner cavity corresponding to the cover plate, the cover plate is limited and installed on the first limiting installation groove, and the piston is limited and moved in the inner cavity through the cover plate; the other end opening part of chuck corresponds the apron outside and is equipped with the elasticity jump ring, and the inner chamber corresponds the elasticity jump ring and is equipped with the spacing mounting groove of second, and the spacing installation of elasticity jump ring is on the spacing mounting groove of second, and laps spacing assembly between first spacing mounting groove and elasticity jump ring, and the elasticity jump ring prevents that the apron from toward breaking away from the inner chamber of chuck outward, and the apron prevents that the piston from toward breaking away from the inner chamber of chuck outward.

And a third annular groove is formed in the outer surface of the cover plate, a second sealing ring is arranged on the third annular groove, and the second sealing ring is assembled between the first limiting mounting groove and the third annular groove in a limiting manner.

The utility model has the advantages as follows:

the middle of the piston is designed into a hollow cavity part, a product shaft core is avoided, the product shaft core extends into the cavity part of the piston, the size of the pneumatic clamping jaw device is saved, the product shaft core extends into the cavity part of the piston, the overall height or the length of the pneumatic clamping jaw device when the pneumatic clamping jaw device clamps a product is shortened, the pneumatic clamping jaw directly clamps the excircle of the product, and all excircle products are compatible.

The clamping jaw and the sliding block are connected in a matched mode, different clamping jaws can be replaced according to the specification and the size of a product, a special clamp does not need to be additionally manufactured, and the universality is high.

Each metal part in the pneumatic clamping jaw device is processed by a QPQ process (the QPQ process is an abbreviated form of Quench-Polish-Quench). QPQ process treatment means that a ferrous metal part is placed into two salt baths with different properties, and a plurality of elements are infiltrated into the metal surface to form a composite infiltrated layer, so that the purpose of modifying the surface of the part is achieved, and the wear resistance of the part is enhanced. Salt bath composite treatment: the heat treatment and the anti-corrosion treatment are completed at one time, the treatment temperature is low, the time is short, the surface hardness, the wear resistance and the corrosion resistance of the part can be improved, the friction coefficient is reduced, the deformation is small, the pollution is avoided, and the method has the advantages of optimizing the processing procedure, shortening the production period and reducing the production cost.

Drawings

Fig. 1 is a schematic perspective sectional view of a pneumatic clamping jaw device according to an embodiment of the present invention.

Fig. 2 is a schematic view of another perspective cross-sectional structure of a pneumatic clamping jaw device according to an embodiment of the present invention.

Fig. 3 is a schematic view of a three-dimensional cross-sectional structure of a piston and a clamping jaw assembly according to an embodiment of the present invention.

Fig. 4 is a schematic view of an assembled and disassembled three-dimensional cross-sectional structure of a piston and a clamping jaw assembly according to an embodiment of the present invention.

Fig. 5 is a schematic view of a three-dimensional cross-sectional structure of the chuck and the piston assembly according to an embodiment of the present invention.

Fig. 6 is a schematic view of a three-dimensional cross-sectional structure of a chuck according to an embodiment of the present invention.

Fig. 7 is an assembly exploded schematic view of a pneumatic clamping jaw device according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of each part of a cross-flow fan blade in the prior art.

Detailed Description

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

Referring to fig. 1-7, a pneumatic clamping jaw device for grabbing through-flow fan blade parts comprises a chuck 1 and a plurality of movable clamping jaw assemblies, wherein the chuck 1 is provided with an inner cavity 2 in a hollow structure, the inner cavity 2 is provided with a piston 3 in reciprocating motion, an opening at one end of the chuck 1 is provided with a sliding groove 4 corresponding to the movable clamping jaw assemblies, the movable clamping jaw assemblies are respectively connected with the piston 3 in a matched manner, the piston 3 drives the movable clamping jaw assemblies to open and close along the sliding groove 4 of the chuck 1 in the reciprocating motion process so as to loosen or clamp the through-flow fan blade parts, and a hollow cavity part 5 is arranged in the piston 3 corresponding to a shaft core of the through-flow fan blade parts.

The number of the movable clamping jaw assemblies is three or four.

An air inlet channel 6 for air to enter the driving piston 3 to move is arranged in the inner cavity of the chuck 1, and an air inlet hole 7 communicated with the air inlet channel is arranged on the chuck 1.

The air inlet channel 6 and the air inlet hole 7 form two air inlet parts arranged on the chuck 1, and the two air inlet parts are symmetrical left and right or up and down.

Every activity clamping jaw subassembly all includes clamping jaw 8, the slider 9 that is connected, is equipped with first linear spacing portion 10 between slider 9 and the spout 4 that corresponds, and slider 9 is spacing to be installed on spout 4, and slider 9 makes reciprocating linear motion along spout 4 through first linear spacing portion 10.

In this embodiment, the clamping jaw 8 and the sliding block 9 are fixedly connected through screws.

The piston 3 is provided with a plurality of bosses 11 corresponding to each sliding block 9, connecting positions 12 corresponding to the bosses 11 in each sliding block 9 are arranged on the bosses 11, inclined guide grooves 13 are formed in the bosses 11, guide parts 14 corresponding to the guide grooves 13 in each sliding block 9 are arranged on the connecting positions 12, the guide parts 14 are limited on the guide grooves 13 in a sliding mode, and when the movable clamping jaw assembly moves in an opening and closing mode, the guide parts 14 of the sliding blocks 9 move in a reciprocating mode along the guide grooves 13.

A first sealing ring 15 is arranged between the inner cavity 2 of the chuck 1 and the piston 3, the first sealing ring 15 is sleeved on the piston 3, a first annular groove 16 is arranged on the inner cavity 2 of the chuck 1, and the first sealing ring 15 is limited in the first annular groove 16.

In the present embodiment, the first seal ring 15 is a Y-shaped seal ring.

A second annular groove 17 is formed in the outer surface of the piston 3, and a Grignard ring 18 for a shaft is arranged on the second annular groove 17; the shaft is fitted captive between the second annular groove 17 and the inner chamber 2 with a greige ring 18.

A cover plate 19 is arranged at an opening at the other end of the chuck 1, a first limiting installation groove 20 is formed in the inner cavity 2 corresponding to the cover plate 19, the cover plate 19 is limited and installed on the first limiting installation groove 20, and the piston 3 is limited and movable in the inner cavity 2 through the cover plate 19; the other end opening part of chuck 1 corresponds the apron 19 outside and is equipped with elasticity jump ring 21, and inner chamber 2 corresponds elasticity jump ring 21 and is equipped with the spacing mounting groove of second 22, and the spacing installation of elasticity jump ring 21 is on the spacing mounting groove of second 22, and the spacing assembly of apron 19 is between first spacing mounting groove 20 and elasticity jump ring 21.

And a third annular groove 23 is formed in the outer surface of the cover plate 19, a second sealing ring 24 is arranged on the third annular groove 23, and the second sealing ring 24 is assembled between the first limiting installation groove 20 and the third annular groove 23 in a limiting manner.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pneumatic clamping jaw device that is used for through-flow fan blade spare part to snatch, includes chuck (1), a plurality of activity clamping jaw subassembly, chuck (1) is equipped with inner chamber (2) that are hollow structure, its characterized in that: a reciprocating piston (3) is arranged on the inner cavity (2), a sliding groove (4) is formed in an opening at one end of the chuck (1) and corresponds to the movable clamping jaw assembly, the movable clamping jaw assemblies are respectively matched and connected with the piston (3), the piston (3) drives the movable clamping jaw assemblies to open and close along the sliding groove (4) of the chuck (1) in the reciprocating process so as to loosen or clamp through-flow fan blade parts, and a cavity part (5) is formed in the piston (3) and corresponds to a shaft core of the through-flow fan blade parts; the number of the movable clamping jaw assemblies is three or four.

2. The pneumatic clamping jaw device for grabbing the parts of the cross-flow fan blade as claimed in claim 1, wherein: an air inlet channel (6) for air to enter the driving piston (3) to move is arranged in the inner cavity of the chuck (1), and an air inlet hole (7) communicated with the air inlet channel is formed in the chuck (1).

3. The pneumatic clamping jaw device for grabbing the parts of the cross-flow fan blade as claimed in claim 2, wherein: the air inlet channel (6) and the air inlet holes (7) form two air inlet parts arranged on the chuck (1), and the two air inlet parts are symmetrical left and right or up and down.

4. The pneumatic clamping jaw device for grabbing the parts of the cross-flow fan blade as claimed in claim 1, wherein: every activity clamping jaw subassembly all is equipped with first linear spacing portion (10) including clamping jaw (8), slider (9) that are connected between slider (9) and corresponding spout (4), and slider (9) are spacing to be installed on spout (4), and slider (9) make reciprocating linear motion along spout (4) through first linear spacing portion (10).

5. The pneumatic clamping jaw device for grabbing through-flow fan blade parts as claimed in claim 4, wherein: piston (3) are equipped with a plurality of boss (11) corresponding every slider (9), it is equipped with connection position (12) to correspond boss (11) in every slider (9), establish guide way (13) of slope on boss (11), it is equipped with guide part (14) to correspond guide way (13) in every slider (9), boss (11) slidingtype is installed on connection position (12), and guide part (14) are spacing on guide way (13), when the activity clamping jaw subassembly made the motion of opening and shutting, guide part (14) along guide way (13) reciprocating motion of slider (9).

6. The pneumatic clamping jaw device for grabbing the parts of the cross-flow fan blade as claimed in claim 1, wherein: be equipped with first sealing washer (15) between inner chamber (2) of chuck (1) and piston (3), first sealing washer (15) cover is established on piston (3), is equipped with first annular groove (16) on inner chamber (2) of chuck (1), and first sealing washer (15) are spacing in first annular groove (16).

7. The pneumatic clamping jaw device for grabbing through-flow fan blade parts as claimed in claim 6, wherein: a second annular groove (17) is formed in the outer surface of the piston (3), and a Grignard ring (18) for a shaft is arranged on the second annular groove (17); the shaft is limited and assembled between the second annular groove (17) and the inner cavity (2) by a Grey circle (18).

8. The pneumatic clamping jaw device for grabbing the cross-flow fan blade parts as claimed in claim 1, wherein the pneumatic clamping jaw device comprises: a cover plate (19) is arranged at an opening at the other end of the chuck (1), a first limiting installation groove (20) is formed in the inner cavity (2) corresponding to the cover plate (19), the cover plate (19) is installed on the first limiting installation groove (20) in a limiting mode, and the piston (3) is movably limited in the inner cavity (2) through the cover plate (19); the other end opening part of chuck (1) corresponds apron (19) outside and is equipped with elasticity jump ring (21), and inner chamber (2) correspond elasticity jump ring (21) and are equipped with spacing mounting groove of second (22), and the spacing installation of elasticity jump ring (21) is on spacing mounting groove of second (22), and apron (19) is spacing to be assembled between first spacing mounting groove (20) and elasticity jump ring (21).

9. The pneumatic clamping jaw device for grabbing through-flow fan blade parts as claimed in claim 8, wherein: and a third annular groove (23) is formed in the outer surface of the cover plate (19), a second sealing ring (24) is arranged on the third annular groove (23), and the second sealing ring (24) is assembled between the first limiting mounting groove (20) and the third annular groove (23) in a limiting manner.