CN219005289U

CN219005289U - Double-end pneumatic clamp

Info

Publication number: CN219005289U
Application number: CN202223576047.1U
Authority: CN
Inventors: 程振远
Original assignee: Yongkang Shihang Precision Machinery Co ltd
Current assignee: Yongkang Shihang Precision Machinery Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-12
Anticipated expiration: 2032-12-30

Abstract

The utility model belongs to the technical field of machining, in particular to a double-head pneumatic clamp which comprises a bottom frame, wherein a lower pressing plate is fixedly arranged on the bottom frame, an upper pressing plate is arranged at the upper end of the lower pressing plate, a pair of upper clamping grooves are formed in the lower surface of the upper pressing plate, a pair of lower clamping grooves are formed in the upper surface of the lower pressing plate, the upper clamping grooves and the lower clamping grooves respectively penetrate through the front end and the rear end of the upper pressing plate and the rear end of the lower pressing plate, piston holes are formed between the pair of upper clamping grooves, an air cylinder is arranged in the bottom frame, a piston rod is arranged at the upper end of the air cylinder, the piston rod is arranged in the piston holes, the air cylinder drives the upper pressing plate to move up and down through the piston rod, the lower end of the bottom frame is arranged at a rotating part, the other end of the rotating part is connected with a lathe, the bottom frame is connected with the lathe through the rotating part in a rotating way, and when the two ends of a workpiece extend out to rotate 180 DEG after one end of the workpiece is machined, axial center offset caused by repeated installation and disassembly is avoided, the workload of operators is reduced, and the machining efficiency and the production quality are improved.

Description

Double-end pneumatic clamp

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a double-head pneumatic clamp.

Background

The fixture is a mechanical device for clamping a workpiece on a lathe, the workpiece is clamped and positioned by utilizing the radial movement of movable claws uniformly distributed on the fixture, a worker needs to push the workpiece into the lathe when processing the workpiece, the chuck spanner manually tightens the claws to clamp the workpiece, then the workpiece is processed, and the chuck spanner manually loosens the claws after the processing is finished.

However, in the process of machining, some parts need to be machined at both ends, at this time, the workpiece needs to be removed after one end is machined, and the workpiece can be machined after the previous work is reversely installed _， This kind of traditional production mode needs the workman to consume a large amount of physical power on pressing from both sides tightly to the speed is also slow, and production efficiency is very low, and this kind of processing mode when using, its work piece processing need carry out the centre gripping twice, just can complete with this work piece processing, however when the work piece changes the centre gripping, need the workman to go the operation and adjust, need spend longer time, influence the process velocity easily, it is difficult to accomplish that the axle center is the same, and axiality after the both ends are processed has the influence, and then influence the quality of product production, serious can lead to the work piece to scrap, increase manufacturing cost.

Disclosure of Invention

The utility model aims to provide a device which has a simple structure, reduces disassembly, does not need to disassemble and reverse workpieces, and improves the processing efficiency and the production quality.

The purpose of the utility model is realized in the following way:

the utility model provides a double-end pneumatic clamp, includes the chassis, the fixed holding down plate that is equipped with on the chassis, the upper end of holding down plate is equipped with the top board, paired last clamping groove has been seted up to the lower surface of top board, paired lower clamping groove has been seted up to the upper surface of holding down plate, goes up clamping groove and lower clamping groove and runs through respectively and locates the front and back both ends of top board and holding down plate, has seted up the piston hole between paired last clamping groove, be equipped with the cylinder in the chassis, the upper end of cylinder is equipped with the piston rod, the piston rod install in the piston hole, the cylinder passes through the piston rod and drives the top board reciprocates, the rotation portion is located to the lower extreme of chassis, and the other end and the lathe of rotation portion are connected, the chassis passes through rotation portion and lathe rotation connection.

Further, the lower clamping groove is in a V shape, the upper clamping groove is in an inverted V shape, and a cavity is formed after the upper clamping groove is attached to the lower clamping groove.

Further, a guide rod is arranged on the lower pressing plate, a guide hole matched with the guide rod is formed in the upper pressing plate, and the guide rod penetrates through the guide hole.

Further, a plurality of guide rods are arranged on the lower pressing plate, guide holes with the same number as the guide rods are formed in the upper pressing plate, and the guide holes are larger than the guide rods.

Further, the guide rods are respectively arranged on the periphery of the lower pressing plate, and the guide holes are respectively arranged on the periphery of the upper pressing plate.

Further, a control device is arranged on the side face of the underframe, and the control device can control the driving part to move.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

the fixture comprises a bottom frame, a lower pressing plate is fixedly arranged on the bottom frame, an upper pressing plate is arranged at the upper end of the lower pressing plate, paired upper clamping grooves are formed in the lower surface of the upper pressing plate, paired lower clamping grooves are formed in the upper surface of the lower pressing plate, the upper clamping grooves and the lower clamping grooves respectively penetrate through front and rear ends of the upper pressing plate and the lower pressing plate, piston holes are formed between the paired upper clamping grooves, a cylinder is arranged in the bottom frame, a piston rod is arranged at the upper end of the cylinder, the piston rod is arranged in the piston holes, the cylinder drives the upper pressing plate to move up and down through the piston rod, the lower end of the bottom frame is arranged at a rotating part, the other end of the rotating part is connected with a machining center, the bottom frame is connected with a turntable through the rotating part, and the paired upper clamping grooves and the paired lower clamping grooves penetrate through the front and rear ends of the upper pressing plate and the lower pressing plate, so that a plurality of parts can be machined simultaneously, a base can be rotated through the rotating part, after one end of the base is rotated, the base can be rotated 180 DEG can be removed, the production quality of a workpiece can be reduced, and the machining quality can be improved, the machining efficiency can be improved, and the machining quality can be improved, and the machining efficiency can be improved, and the machining quality can be manufactured and the machining can be manufactured and the work can be manufactured and the work piece can be reversely.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is a schematic view of the structure of the present utility model with the upper platen removed.

Fig. 5 is a schematic structural view of the upper platen of the present utility model.

The meaning indicated by the reference numerals in the figures:

1-a chassis; 2-a lower pressing plate; 3-an upper pressing plate; 4-upper clamping grooves; 5-a lower clamping groove; 6-a piston bore; 7-cylinder; 8-a guide rod; 9-a guide hole; 10-a control device; 11-piston rod.

Detailed Description

The utility model is further described with reference to the following specific examples:

the utility model provides a double-end pneumatic clamp, includes chassis 1, the fixed holding down plate 2 that is equipped with on chassis 1, the upper end of holding down plate 2 is equipped with upper plate 3, paired upper clamping groove 4 has been seted up to the lower surface of upper plate 3, paired lower clamping groove 5 has been seted up to the upper surface of holding down plate 2, upper clamping groove 4 and lower clamping groove 5 all run through respectively and locate the front and back both ends of upper plate 3 and holding down plate 2, piston hole 6 that has seted up between paired upper clamping groove 4, be equipped with cylinder 7 in chassis 1, the upper end of cylinder 7 is equipped with piston rod 11, piston rod 11 install in piston hole 6, cylinder 7 passes through piston rod 11 and drives upper plate 3 reciprocates, the rotation portion is located to the lower extreme of chassis 1, and the other end and the lathe of rotation portion are connected, chassis 1 rotates with the lathe through rotation portion and is connected.

The utility model relates to a fixture which has simple structure, reduces disassembly, does not need to replace workpieces, improves the processing efficiency and the production quality, and comprises a bottom frame 1, wherein a lower pressing plate 2 is fixedly arranged on the bottom frame 1, an upper pressing plate 3 is arranged at the upper end of the lower pressing plate 2, paired upper clamping grooves 4 are arranged on the lower surface of the upper pressing plate 3, paired lower clamping grooves 5 are arranged on the upper surface of the lower pressing plate 2, the upper clamping grooves 4 and the lower clamping grooves 5 respectively penetrate through the front end and the rear end of the upper pressing plate 3 and the lower pressing plate 2, piston holes 6 are arranged between the paired upper clamping grooves 4, an air cylinder 7 is arranged in the bottom frame 1, a piston rod 11 is arranged at the upper end of the air cylinder 7, the piston rod 11 is arranged in the piston hole 6, the air cylinder 7 drives the upper pressing plate 3 to move up and down through the piston rod 11, and the lower end of the bottom frame 1 is arranged at a rotating part, the other end and the machining center of rotation portion are connected, chassis 1 passes through rotation portion and machining center revolving stage to be connected, and upper and lower double-layered groove 5 of pair runs through the front and back both ends that locate upper platen 3 and holding down plate 2 makes and lets work piece both ends all can extend and process a plurality of parts simultaneously when processing, can rotate the base through rotation portion, can rotate 180 with the base after one end processing is accomplished, just so can process the other end, avoid the axle center skew that the repeated installation dismantlement leads to, and then influence the quality of product production, and when clamping machined part, can rotate 90 with the chassis, carry out the clamping again, just can dismantle the machined part under the circumstances of not removing the cutting portion, reduced operator's work load, speed for production and processing has reduced the work piece disability rate, improve machining efficiency and production quality.

Preferably, the lower clamping groove 5 is in a V shape, the upper clamping groove 4 is in an inverted V shape, a cavity formed after the upper clamping groove 4 is attached to the lower clamping groove 5, a pressing plate is arranged on the upper surface and the lower surface for positioning, and the clamping is more accurate and stable due to the V-shaped groove.

Preferably, the lower pressing plate 2 is provided with a guide rod 8, the upper pressing plate 3 is provided with a guide hole 9 adapted to the guide rod 8, the guide rod 8 is arranged in the guide hole 9 in a penetrating manner, and the upper pressing plate 3 is also protected.

Preferably, the lower pressure plate 2 is provided with a plurality of guide rods 8, the upper pressure plate 3 is provided with guide holes 9 with the same number as the guide rods 8, the guide holes 9 are larger than the guide rods 8, the guide rods 8 are convenient to slide, and the upper pressure plate 3 moves up and down more smoothly.

Preferably, the guide rods 8 are respectively arranged around the lower pressing plate 2, the guide holes 9 are respectively arranged around the upper pressing plate 3, and the moving direction and the stability of the upper pressing plate 3 each time are controlled.

Preferably, a control device 10 is arranged on the side surface of the chassis 1, and the control device 10 can control the driving part to move, so that the utility model can be controlled conveniently, and the utility model is more convenient and labor-saving to use.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a double-end pneumatic clamp, its characterized in that, including chassis (1), the fixed holding down plate (2) that is equipped with on chassis (1), the upper end of holding down plate (2) is equipped with top board (3), paired last clamping groove (4) have been seted up to the lower surface of top board (3), paired lower clamping groove (5) have been seted up to the upper surface of holding down plate (2), go up clamping groove (4) and lower clamping groove (5) respectively run through the front and back both ends of locating top board (3) and holding down plate (2), piston hole (6) that have seted up between paired last clamping groove (4), be equipped with cylinder (7) in chassis (1), the upper end of cylinder (7) is equipped with piston rod (11), piston rod (11) install in piston hole (6), cylinder (7) drive through piston rod (11) top board (3) reciprocate, the rotation portion is located to the lower extreme of chassis (1), and rotation portion are connected with the lathe, chassis (1) is connected with rotation through rotation portion.

2. The double-ended pneumatic clamp of claim 1, wherein: the lower clamping groove (5) is in a V shape, the upper clamping groove (4) is in an inverted V shape, and a cavity is formed after the upper clamping groove (4) is attached to the lower clamping groove (5).

3. A dual head pneumatic clamp as claimed in claim 2, wherein: the lower pressing plate (2) is provided with a guide rod (8), the upper pressing plate (3) is provided with a guide hole (9) matched with the guide rod (8), and the guide rod (8) penetrates through the guide hole (9).

4. A dual head pneumatic clamp as claimed in claim 3, wherein: the lower pressing plate (2) is provided with a plurality of guide rods (8), the upper pressing plate (3) is provided with guide holes (9) with the same number as the guide rods (8), and the guide holes (9) are larger than the guide rods (8).

5. A dual head pneumatic clamp as claimed in claim 3 or 4 wherein: the guide rods (8) are respectively arranged on the periphery of the lower pressing plate (2), and the guide holes (9) are respectively arranged on the periphery of the upper pressing plate (3).

6. A dual head pneumatic clamp as claimed in any one of claims 1 to 4 wherein: the side of the chassis (1) is provided with a control device (10), and the control device (10) can control the movement of the driving part.