CN203900525U - Pneumatic chuck of lathe - Google Patents

Abstract

The utility model relates to a lathe pneumatic chuck of turning technology of non-revolving body work piece, which comprises a first fixed disk and a second fixed disk, wherein the first fixed disk and the second fixed disk are fixedly connected by a plurality of connecting pieces and are parallel to each other, and a cylinder is fixedly connected on the second fixed disk; the first fixed disc is provided with a positioning device for positioning a workpiece and a guide device for guiding the ejector rod; the positioning device can enable the center of the processed hole on the workpiece to coincide with the rotation center of the lathe spindle; a primary and secondary groove is arranged between the guide device and the ejector rod, so that the ejector rod can linearly reciprocate along the guide device, and the loosening and clamping of workpieces are realized; the end part of the ejector rod is hinged with one end of the cross rod, the other end of the cross rod is hinged with the ejector rod of the air cylinder, and the cross rod is hinged with the first fixed disc through a bolt. By adopting the technical scheme, the automatic centering and clamping of the workpiece can be realized; the processing procedures are reduced, and the processing efficiency and the processing quality are improved.

Description

Lathe Pneumatic Chuck

technical field

The utility model relates to a fixture, in particular to a lathe pneumatic chuck for the turning process of non-revolving workpieces.

Background technique

Pneumatic valves are widely used in industrial and agricultural production, therefore, this product has many demand occasions and large production batches. Since the pneumatic valve is a non-rotating body, the traditional processing method is generally to use a milling machine for processing. The processing accuracy is not high, the process is many, the efficiency is low, and the quality cannot be controlled.

Contents of the invention

The utility model provides a lathe pneumatic chuck for the turning process of non-revolving workpieces. The lathe pneumatic chuck can realize automatic centering and clamping.

The technical solution to achieve the above purpose is: a lathe pneumatic chuck, including a first fixed plate and a second fixed plate, the first fixed plate and the second fixed plate are fixedly connected with a plurality of couplings and parallel to each other, the On the second fixed disk, the cylinder is fixedly connected; the first fixed disk is provided with a positioning device for positioning the workpiece and a guiding device for guiding the push rod; the positioning device can make the center of the processed hole on the workpiece and the lathe The center of rotation of the main shaft coincides; there is a mother and son groove between the guide device and the ejector rod, which can make the ejector rod move back and forth along the guide device in a straight line to realize the loose clamping of the workpiece; the end of the ejector rod and the cross bar One end is hinged, the other end of the cross bar is hinged with the push rod of the cylinder, and the cross bar is hinged with the first fixed plate through bolts.

Further, the positioning device includes a first positioning block and a second fixing block fixedly coupled to the first fixed plate.

Further, the guide device includes a first guide block and a second guide block fixedly coupled to the first fixed plate.

Preferably, the inner diameter of the cylinder is 80mm.

Preferably, the distance from the hinge point between the cross bar and the first fixed plate to the hinge point between the cross bar and the ejector rod is about 1/3 of the distance from the hinge point between the cross bar and the first fixed plate to the cross bar and the cylinder The distance from the hinge point of the ram.

Further, it also includes a protective ring sleeved on the first fixed disk and the second fixed disk.

After adopting the above technical scheme, it has the following beneficial effects:

(1) It can realize automatic centering and automatic clamping;

(2) Reduce processing procedures and improve processing efficiency;

(3) Ensure the stability of processing quality and improve processing quality.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the structure of the guard ring.

In the figure: 1. The first fixed plate; 2. Connector; 3. The second fixed plate; 4. Cylinder; 5. Cross bar; 6. Ejector; 7. Guide device; 7-1. 7-2. The second guide block; 8. The workpiece; 9. The positioning device; 9-1. The first positioning block; 9-2. The second fixed block; 10. The protective ring.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

As shown in Figure 1 and Figure 2: a lathe pneumatic chuck, including a first fixed plate 1 and a second fixed plate 3, the first fixed plate 1 and the second fixed plate 3 are fixedly connected by a plurality of couplings 2 and parallel to each other, the second fixed disk 3 is fixedly connected to the cylinder 4; the first fixed disk 1 is provided with a positioning device 9 for positioning the workpiece 8 and a guide device 7 for guiding the push rod 6; the positioning The device 9 can make the center of the hole to be machined on the workpiece 8 coincide with the rotation center of the lathe spindle; the guide device 7 and the ejector rod 6 are provided with a mother and son groove, so that the ejector rod 6 can reciprocate in a straight line along the guide device 7 Move to realize the unclamping of the workpiece 8; the end of the push rod 6 is hinged with one end of the cross bar 5, and the other end of the cross bar 5 is hinged with the push rod of the cylinder 4, and the cross bar 5 is connected to the first rod through a bolt. A fixed disc 1 is hinged.

Further, the positioning device 9 includes a first positioning block 9-1 and a second fixing block 9-2 fixedly coupled to the first fixed plate 1 . Because the workpiece 8 is a non-cylindrical body of revolution, the first positioning block 9-1 and the second positioning block 9-2 fixed on the first fixed plate 1 by bolts respectively complete the positioning in two dimensions, ensuring that the workpiece 8 is processed The center of the hole coincides exactly with the center of rotation of the lathe spindle.

Further, in order to ensure that the ejector rod 6 effectively acts on the workpiece 8, the guide device 7 includes a first guide block 7-1 and a second guide block 7-2 fixedly coupled to the first fixed plate 1.

Preferably, in order to ensure a compact structure and sufficient clamping force of the utility model, the inner diameter of the cylinder 4 is 80 mm.

Preferably, in order to amplify the driving force output by the cylinder 4 and ensure the clamping effect of the workpiece 8, the distance from the hinge point between the crossbar 5 and the first fixed plate to the hinge point between the crossbar 5 and the ejector rod 6 is about 1/ 3, the distance from the hinge point between the cross bar 5 and the first fixed disk to the hinge point between the cross bar 5 and the push rod of the cylinder 4.

Furthermore, in order to improve the safety of the utility model during use, the utility model also includes a protective ring 10 sleeved on the first fixed plate 1 and the second fixed plate 3 .

Principle of the present utility model: cylinder 4 links to each other through the compressed air pipe of lathe main shaft center through sealing device. The pneumatic chuck of the lathe is fixed on the main shaft of the lathe through the three-jaw chuck of the lathe. When the pneumatic chuck of the lathe is working, the compressed air enters the main shaft of the lathe through the air pipe, and then enters the cylinder 4. The cylinder 4 works to push the ejector rod 6 to move upward. According to the principle of leverage, the other end of the cross bar 5 moves downward to clamp the workpiece 8 . After processing, the reversing valve of the cylinder 4 works, so that the opposite direction moves to loosen the workpiece 8.

Claims (6)

1. a lathe air spider, comprise the first fixed disk (1) and the second fixed disk (3), described the first fixed disk (1) and the second fixed disk (3) are fixedly connected and are parallel to each other with multiple connectors (2), it is characterized in that: cylinder (4) is fixedly connected on described the second fixed disk (3); Described the first fixed disk (1) is provided with for the positioner (9) of positioning workpieces (8) with for the guider (7) of the push rod that leads (6); Described positioner (9) can make the processed Kong center on workpiece (8) overlap with the centre of gyration of lathe spindle; Between described guider (7) and push rod (6), be provided with mother-son groove, can make push rod (6) move along guider (7) linear reciprocation, realize the pine folder of workpiece (8); One end of the end of described push rod (6) and cross bar (5) is hinged, the push rod of the other end of described cross bar (5) and cylinder (4) is hinged, and described cross bar (5) is hinged by bolt and the first fixed disk (1).

2. a kind of lathe air spider according to claim 1, is characterized in that: described positioner (9) comprises the first locating piece (9-1) and the second fixed block (9-2) that are fixedly connected on the first fixed disk (1).

3. according to a kind of lathe air spider described in claim 1 or 2, it is characterized in that: described guider (7) comprises the first guide pad (7-1) and the second guide pad (7-2) that are fixedly connected on the first fixed disk (1).

4. a kind of lathe air spider according to claim 3, is characterized in that: the internal diameter of described cylinder (4) is 80mm.

5. a kind of lathe air spider according to claim 4, is characterized in that: described cross bar (5) is about 1/3 described cross bar (5) and the distance of the first fixed disk pin joint to the pin joint of the push rod of described cross bar (5) and cylinder (4) to described cross bar (5) and the distance of push rod (6) pin joint with the first fixed disk pin joint.

6. a kind of lathe air spider according to claim 5, is characterized in that: also comprise the protection ring (10) being sleeved on the first fixed disk (1) and the second fixed disk (3).