CN209793547U

CN209793547U - Pneumatic clamp

Info

Publication number: CN209793547U
Application number: CN201920577735.9U
Authority: CN
Inventors: 桑明喆
Original assignee: Suqian Zhi Zhi Intelligent Technology Co Ltd
Current assignee: Suqian Zhi Zhi Intelligent Technology Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2019-12-17
Anticipated expiration: 2029-04-25

Abstract

The utility model relates to a pneumatic fixture, characterized by: the fixing frame and the supporting plate are taken as main bodies, and a circular clamping opening is formed in the middle of the fixing frame; the side end face of the fixed frame is provided with a cylinder fixedly connected with the fixed frame, and the front end of the cylinder is provided with a push shaft and a rack; the middle of the supporting plate is provided with a square groove which is matched on the rack, and a rotating shaft which can rotate and is vertical to the rack is arranged through the fixing frame; an auxiliary push ring capable of rotating is arranged in the fixed frame, and worm gears meshed with the worm are respectively arranged at the opposite positions of the auxiliary push ring and the rotating shaft; six locking triangular blocks which are uniformly distributed around the clamping opening are arranged in the middle of the fixing frame, and a pushing connecting rod is arranged between each locking triangular block and the auxiliary push ring to be connected; the utility model discloses a cylinder promotes wheel and rack and makes worm wheel and worm motion to let locking triangle piece locking work piece, and worm wheel and worm can be auto-locked, design benefit, convenient operation, simple to use.

Description

Pneumatic clamp

Technical Field

The utility model relates to a pneumatic fixture technical field refers in particular to a pneumatic fixture.

Background

In the processing process of parts in the field of existing mechanical manufacturing, a clamp is usually required for clamping processing, in the design, the basic requirement is that the output clamping force is large enough and cannot be loosened in the processing process, and the clamping mode is low in efficiency, easy to deflect during riveting and high in repair rate, and a manual clamping or mechanical arm clamping is generally adopted before the clamping mode; the pneumatic clamp is produced later, parts can be clamped and arranged efficiently, but the defects of insufficient machining precision and poor usability still exist, the clamping force of the pneumatic clamp is not well mastered, and some parts can be damaged due to too large clamping force.

Therefore, the pneumatic clamp mechanism which can convert pneumatic into worm and gear motion and clamp a cylinder or a polygonal cylinder simultaneously is designed, is beneficial to subsequent processing processes, and has very important practical application value for manufacturers in the field.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a pneumatic clamp.

The utility model provides a technical scheme that its technical problem adopted is: a pneumatic clamp is characterized in that: the fixing frame and the supporting plate are taken as main bodies, and a circular clamping opening is formed in the middle of the fixing frame; the side end face of the fixed frame is provided with a cylinder fixedly connected with the fixed frame, and the front end of the cylinder is provided with a push shaft and a rack; the middle of the supporting plate is provided with a square groove which is matched on the rack, and a rotating shaft which can rotate and is vertical to the rack is arranged through the fixing frame; an auxiliary push ring capable of rotating is arranged in the fixed frame, and worm gears meshed with the worm are respectively arranged at the opposite positions of the auxiliary push ring and the rotating shaft; six locking triangular blocks which are uniformly distributed around the clamping opening are arranged in the middle of the fixing frame, and a pushing connecting rod is arranged between the locking triangular blocks and the auxiliary push ring to be connected.

Preferably, the fixed frame is provided with a support sleeve on the rotating shaft, so that the rotating shaft can rotate conveniently.

Preferably, the gear and the rack are arranged right above the rack on the rotating shaft and are meshed, and the rack is pressed in the square groove of the supporting plate by the gear, so that the rack and the gear are prevented from being dislocated in the meshing motion process.

Preferably, the locking triangular block is triangular, so that the cylinder and the polygonal cylinder can be conveniently locked.

Preferably, the two ends of the pushing connecting rod are respectively provided with a pin column which is connected with the locking triangular block and the auxiliary push ring, so that the pushing connecting rod can move on the locking triangular block and the auxiliary push ring conveniently.

The utility model has the advantages that: the gear and the rack are pushed by the cylinder to enable the worm wheel and the worm to move, so that the locking triangular block locks the workpiece, the worm wheel and the worm can be self-locked, and the locking mechanism is ingenious in design, convenient to operate and simple to use.

Drawings

Fig. 1 is a top view of the pneumatic clamp.

Fig. 2 is a perspective view of the pneumatic clamp.

Fig. 3 is a partially enlarged view of a pneumatic clamp a of the type described in fig. 2.

Fig. 4 is a schematic view of a pneumatic clamp of the type described.

In the figure: 1. a fixed frame 12 and a clamping opening; 2. an auxiliary push ring 21 and a worm wheel; 3. worm, 31, bearing, 32, gear, 33, rotation axis; 4. a cylinder 41, a push shaft 42 and a rack; 5. a support plate 51, a square groove; 6. pushing the connecting rod; 7. waist-shaped sliding grooves 71 and limit columns; 8. locking the triangular blocks; 9. and (4) a pin.

Detailed Description

In order to make the technical solution of the present invention more clear, the present invention will be further explained with reference to the embodiments of the drawings.

As shown in fig. 1-4, the utility model discloses a pneumatic clamp, characterized by: the fixing frame 1 and the supporting plate 5 are taken as main bodies, and a circular clamping opening 12 is formed in the middle of the fixing frame 1; the side end face of the fixed frame 1 is provided with a cylinder 4 fixedly connected with the fixed frame, and the front end of the cylinder 4 is provided with a push shaft 41 and a rack 42; the middle of the supporting plate 5 is provided with a square groove 51 which is matched on the rack 42, and a rotating shaft 33 which can rotate and is vertical to the rack 42 is arranged through the fixed frame 1; an auxiliary push ring 2 capable of rotating is arranged in the fixed frame 1, and a worm wheel 21 meshed with the worm 3 is respectively arranged at the opposite positions of the auxiliary push ring 2 and the rotating shaft 33; six locking triangular blocks 8 which are uniformly distributed around the clamping opening 12 are arranged in the middle of the fixing frame 1, and a pushing connecting rod 6 is arranged between each locking triangular block 8 and the auxiliary push ring 2 to be connected.

When the worm-gear type worm-gear drive device is used, the air cylinder 4 is started, the pushing shaft 41 at the front end of the air cylinder 4 pushes the rack 42 to slide in the square groove 51, and meanwhile, the rack 42 is driven by the gear 32 to rotate, so that the worm 3 drives the worm wheel 21 to move; furthermore, the auxiliary push ring 2 pushes the connecting rod 6 to enable the locking triangular block 8 to gather and lock the workpiece towards the middle; the gear 32 and the rack 42 are pushed by the cylinder 4 to enable the worm wheel 21 and the worm 3 to move, so that the locking triangular block 8 locks a workpiece, the worm wheel 21 and the worm 3 can be self-locked, and the locking mechanism is ingenious in design, convenient to operate and simple to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pneumatic clamp is characterized in that: the fixing frame and the supporting plate are taken as main bodies, and a circular clamping opening is formed in the middle of the fixing frame; the side end face of the fixed frame is provided with a cylinder fixedly connected with the fixed frame, and the front end of the cylinder is provided with a push shaft and a rack; the middle of the supporting plate is provided with a square groove which is matched on the rack, and a rotating shaft which can rotate and is vertical to the rack is arranged through the fixing frame; an auxiliary push ring capable of rotating is arranged in the fixed frame, and worm gears meshed with the worm are respectively arranged at the opposite positions of the auxiliary push ring and the rotating shaft; six locking triangular blocks which are uniformly distributed around the clamping opening are arranged in the middle of the fixing frame, and a pushing connecting rod is arranged between the locking triangular blocks and the auxiliary push ring to be connected.

2. A pneumatic clamp according to claim 1, wherein: the fixing frame is provided with a bearing sleeve on the rotating shaft, so that the rotating shaft can rotate conveniently.

3. A pneumatic clamp according to claim 1, wherein: the rack is pressed in the square groove of the supporting plate through the gear, and the rack and the gear are prevented from being dislocated in the meshing motion process.

4. A pneumatic clamp according to claim 1, wherein: the locking triangular blocks are triangular, so that the cylindrical bodies and the polygonal cylindrical bodies can be conveniently locked.

5. A pneumatic clamp according to claim 1, wherein: the two ends of the pushing connecting rod are respectively provided with a pin column which is connected with the locking triangular block and the auxiliary push ring, so that the pushing connecting rod can move on the locking triangular block and the auxiliary push ring conveniently.