CN210240168U

CN210240168U - Hollow rotary cylinder

Info

Publication number: CN210240168U
Application number: CN201921074418.1U
Authority: CN
Inventors: Weiqi Fan; 范伟其
Original assignee: Cixi Aoling Machine Tool Accessories Co ltd
Current assignee: Cixi Aoling Machine Tool Accessories Co ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-04-03
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a hollow rotary cylinder, which comprises a rotary shaft sleeve, wherein the right end of the rotary shaft sleeve is provided with a rotary disc along the radial extension of the rotary shaft sleeve; an end cover is hermetically arranged on the right end face of the rotary table, and a piston cavity is formed between the end cover and the rotary table; a hollow rod is connected in the rotary shaft sleeve in a sliding manner, and a sealing shaft hole for the insertion connection of the right end of the hollow rod is formed in the center of the end cover; the piston plate is positioned in the piston cavity to divide the piston cavity into a left piston cavity and a right piston cavity; the pneumatic mechanism is connected to the rotating shaft sleeve on the left side of the rotary table in a rotating mode and used for driving the hollow rod to reciprocate left and right in the rotating shaft sleeve; the hollow rotary cylinder is reasonable in structure, and when the hollow rotary cylinder is used on a machine tool, long-shaft workpieces can be clamped conveniently through the clamp.

Description

Hollow rotary cylinder

Technical Field

The utility model relates to the technical field of cylinders, specifically indicate a cavity revolving cylinder.

Background

The rotary cylinder is a cylinder with fixed air inlet and exhaust connectors, and the cylinder body can rotate relatively and act on a machine tool clamp and a wire coiling device. The clamping device is generally applied to a mechanical processing machine, and particularly provides clamping force for clamping parts processed by the machine tool, and the clamping force can be provided or the parts can be loosened at any time when the parts are clamped, so that the operation is very convenient. The existing rotary air cylinders applied to machine tool fixtures are basically solid, are relatively troublesome to use when used for processing long-axis workpieces, and are relatively low in processing precision.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a cavity revolving cylinder, it is rational in infrastructure not only, use moreover when the lathe on can be convenient for through anchor clamps realize the clamp of major axis class work piece tightly.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a hollow rotary cylinder comprises a rotary shaft sleeve, wherein a rotary disc is arranged at the right end of the rotary shaft sleeve in an extending mode along the radial direction of the rotary shaft sleeve; an end cover is hermetically arranged on the right end face of the rotary table, and a piston cavity is formed between the end cover and the rotary table; a hollow rod is connected in the rotary shaft sleeve in a sliding manner, and a sealing shaft hole for the insertion connection of the right end of the hollow rod is formed in the center of the end cover; the piston plate is positioned in the piston cavity to divide the piston cavity into a left piston cavity and a right piston cavity; the rotary shaft sleeve is rotatably connected with a pneumatic mechanism on the left side of the rotary disc, and the pneumatic mechanism is used for driving the hollow rod to reciprocate left and right in the rotary shaft sleeve.

Through the technical scheme, when the hollow rotary cylinder drives the clamp to clamp the long shaft workpiece, the long shaft workpiece can be plugged into the hollow rod according to the position of the long shaft workpiece to be machined, then the pneumatic mechanism drives the clamp to clamp the workpiece through the hollow rod, and therefore machining efficiency and machining precision of the long shaft workpiece can be greatly improved.

In a further technical scheme, the pneumatic mechanism comprises a copper sleeve, a pneumatic seat body, a first air pipe joint and a second air pipe joint; the copper sleeve is rotationally connected to the rotating shaft sleeve, and the pneumatic seat body is rotationally connected to the copper sleeve; the rotating shaft sleeve is provided with a first air groove and a second air groove in parallel on the inner circumferential side surface matched with the hollow rod; the rotating shaft sleeve is provided with a third air groove and a fourth air groove in parallel on the outer circumferential side surface matched with the copper sleeve; a fifth air groove and a sixth air groove are arranged on the inner circumferential side face of the pneumatic seat body matched with the copper sleeve side by side; the first air pipe joint is arranged on the pneumatic seat body and communicated with the fifth air groove, and the second air pipe joint is arranged on the pneumatic seat body and communicated with the sixth air groove; a plurality of first filter holes for communicating the fifth gas tank with the third gas tank and a plurality of second filter holes for communicating the sixth gas tank with the fourth gas tank are formed in the copper sleeve; a first air hole for communicating the first air groove with the third air groove and a second air hole for communicating the second air groove with the fourth air groove are formed in the rotary shaft sleeve; an air passage for communicating the first air hole and the right piston cavity is arranged in the rotary shaft sleeve, the rotary disc and the end cover; and an air gap for communicating the second air groove with the left piston cavity is arranged between the rotary shaft sleeve and the hollow rod.

Through the technical scheme, when the pneumatic mechanism works, the pneumatic base body is fixed, the rotating shaft is sleeved in the pneumatic base body to rotate, when the first air pipe joint is used for air inlet and the second air pipe joint is used for air return, high-pressure air enters the right piston cavity through the first air pipe joint, the fifth air groove, the first filtering hole, the third air groove, the first air hole and the air passage, the hollow rod is driven to move leftwards through the piston plate, air in the left piston cavity is driven to move leftwards through the air gap, the second air groove, the second air hole, the fourth air groove, the second filtering hole, the sixth air groove and the second air pipe joint, and similarly, when the first air pipe joint is used for air return and the second air pipe joint is used for air inlet, the hollow rod is driven to move rightwards through the; in addition, the first filtering holes and the second filtering holes are formed in the copper sleeve, so that the compressed air can be filtered.

In a further technical scheme, ball bearings are arranged at two ends of the copper sleeve between the rotary shaft sleeve and the pneumatic seat body; the provision of the bearing can reduce wear.

In a further technical scheme, a plurality of springs are uniformly arranged between the piston plate and the end cover at intervals by taking the hollow rod as a rotating center, and the springs are used for forcing the piston plate to press the rotary table; this setting can make the motion of cavity pole more steady, can realize simultaneously that the quick right motion of cavity pole.

(III) advantageous effects

Compared with the prior art, the technical scheme of the utility model have following advantage:

when the hollow rotary cylinder drives the clamp to clamp the long shaft workpiece, the long shaft workpiece can be plugged into the hollow rod according to the position of the long shaft workpiece to be processed, and then the clamp is driven by the pneumatic mechanism through the hollow rod to clamp the workpiece, so that the processing efficiency and the processing precision of the long shaft workpiece can be greatly improved; in addition, the first filtering holes and the second filtering holes are formed in the copper sleeve, so that the compressed air can be filtered.

Drawings

FIG. 1 is a front sectional view of a lost motion cylinder in the embodiment;

FIG. 2 is a left side view of the hollow rotary cylinder in the embodiment;

FIG. 3 is a right side view of the idle rotation cylinder in the embodiment;

fig. 4 is an enlarged schematic view of a portion a in fig. 1.

Detailed Description

Referring to fig. 1-4, a hollow rotary cylinder includes a rotary shaft sleeve 1, wherein a rotary disc 2 is extended from the right end of the rotary shaft sleeve 1 along the radial direction thereof; an end cover 3 is hermetically arranged on the right end face of the rotary table 2, and a piston cavity is formed between the end cover 3 and the rotary table 2; a hollow rod 4 is connected in the rotary shaft sleeve 1 in a sliding manner, and a sealing shaft hole 301 for inserting the right end of the hollow rod 4 is formed in the center of the end cover 3; the side surface of the circumference of the hollow rod 4 is provided with a piston plate 5 along the radial direction of the hollow rod, the piston plate 5 is positioned in the piston cavity to divide the piston cavity into a left piston cavity 3a and a right piston cavity 3b, a plurality of springs 6 are uniformly arranged between the piston plate 5 and the end cover 3 at intervals by taking the hollow rod 4 as a rotating center, and the springs 6 are used for forcing the piston plate 5 to press the rotary table 2; the rotary shaft sleeve 1 is rotatably connected with a pneumatic mechanism on the left side of the rotary disc 2, and the pneumatic mechanism is used for driving the hollow rod 4 to reciprocate left and right in the rotary shaft sleeve 1.

The pneumatic mechanism comprises a copper sleeve 7, a pneumatic seat body 8, a first air pipe joint 9 and a second air pipe joint 10; the copper sleeve 7 is rotatably connected to the rotary shaft sleeve 1, and the pneumatic seat body 8 is rotatably connected to the copper sleeve 7; the two ends of the copper bush 7 are provided with ball bearings 11 between the rotary shaft sleeve 1 and the pneumatic seat body 8, and the arrangement of the bearings can reduce abrasion. The rotary shaft sleeve 1 is provided with a first air groove 101 and a second air groove 102 on the inner circumferential side surface matched with the hollow rod 4 side by side; a third air groove 103 and a fourth air groove 104 are arranged on the outer circumferential side face of the rotary shaft sleeve 1 matched with the copper sleeve 7 side by side; a fifth air groove 105 and a sixth air groove 106 are arranged on the inner circumferential side face of the pneumatic seat body 8 matched with the copper sleeve 7 side by side; the first air pipe joint 9 is installed on the pneumatic seat body 8 and communicated with the fifth air groove 105, and the second air pipe joint 10 is installed on the pneumatic seat body 8 and communicated with the sixth air groove 106; a plurality of first filtering holes 107 for communicating the fifth gas groove 105 with the third gas groove 103 and a plurality of second filtering holes 108 for communicating the sixth gas groove 106 with the fourth gas groove 104 are arranged in the copper sleeve 7; a first air hole 109 for communicating the first air groove 101 with the third air groove 103 and a second air hole 110 for communicating the second air groove 102 with the fourth air groove 104 are arranged in the rotary shaft sleeve 1; an air passage 111 for communicating the first air hole 109 and the right piston cavity 3b is arranged in the rotary shaft sleeve 1, the rotary disc 2 and the end cover 3; an air gap 112 for communicating the second air groove 102 and the left piston cavity 3a is arranged between the rotary shaft sleeve 1 and the hollow rod 4.

When the hollow rotary cylinder drives the clamp to clamp the long shaft workpiece, one section of the long shaft workpiece which does not need to be machined can be plugged into the hollow rod 4 according to the position of the long shaft workpiece which needs to be machined, and then the pneumatic mechanism drives the clamp to clamp the workpiece through the hollow rod 4, so that the machining efficiency and the machining precision of the long shaft workpiece can be greatly improved.

When the pneumatic mechanism works, the pneumatic base body 8 is fixed, the rotary shaft sleeve 1 rotates in the pneumatic base body 8, if the first air pipe joint 9 is used for air intake and the second air pipe joint 10 is used for air return, high-pressure air enters the right piston cavity 3b through the first air pipe joint 9, the fifth air groove 105, the first filtering hole 107, the third air groove 103, the first air hole 109 and the air passage 111, the hollow rod 4 is driven to move leftwards through the piston plate 5, air in the left piston cavity 3a is discharged through the air gap 112, the second air groove 102, the second air hole 110, the fourth air groove 104, the second filtering hole 108, the sixth air groove 106 and the second air pipe joint 10, and similarly, if the first air pipe joint 9 is used for air return and the second air pipe joint 10 is used for air intake, the hollow rod 4 is driven to move rightwards through the piston plate 5.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A hollow rotary cylinder comprises a rotary shaft sleeve, wherein a rotary disc is arranged at the right end of the rotary shaft sleeve in an extending mode along the radial direction of the rotary shaft sleeve; an end cover is hermetically arranged on the right end face of the rotary table, and a piston cavity is formed between the end cover and the rotary table; the rotary shaft sleeve is characterized in that a hollow rod is connected in the rotary shaft sleeve in a sliding mode, and a sealing shaft hole for inserting the right end of the hollow rod is formed in the center of the end cover; the piston plate is positioned in the piston cavity to divide the piston cavity into a left piston cavity and a right piston cavity; the rotary shaft sleeve is rotatably connected with a pneumatic mechanism on the left side of the rotary disc, and the pneumatic mechanism is used for driving the hollow rod to reciprocate left and right in the rotary shaft sleeve.

2. The hollow rotary cylinder of claim 1, wherein the pneumatic mechanism includes a copper sleeve, a pneumatic seat, a first gas tube connector, a second gas tube connector; the copper sleeve is rotationally connected to the rotating shaft sleeve, and the pneumatic seat body is rotationally connected to the copper sleeve; the rotating shaft sleeve is provided with a first air groove and a second air groove in parallel on the inner circumferential side surface matched with the hollow rod; the rotating shaft sleeve is provided with a third air groove and a fourth air groove in parallel on the outer circumferential side surface matched with the copper sleeve; a fifth air groove and a sixth air groove are arranged on the inner circumferential side face of the pneumatic seat body matched with the copper sleeve side by side; the first air pipe joint is arranged on the pneumatic seat body and communicated with the fifth air groove, and the second air pipe joint is arranged on the pneumatic seat body and communicated with the sixth air groove; a plurality of first filter holes for communicating the fifth gas tank with the third gas tank and a plurality of second filter holes for communicating the sixth gas tank with the fourth gas tank are formed in the copper sleeve; a first air hole for communicating the first air groove with the third air groove and a second air hole for communicating the second air groove with the fourth air groove are formed in the rotary shaft sleeve; an air passage for communicating the first air hole and the right piston cavity is arranged in the rotary shaft sleeve, the rotary disc and the end cover; and an air gap for communicating the second air groove with the left piston cavity is arranged between the rotary shaft sleeve and the hollow rod.

3. The hollow rotary cylinder of claim 2 wherein ball bearings are provided at both ends of the copper sleeve between the rotary sleeve and the pneumatic housing.

4. The hollow rotary cylinder of claim 1, wherein a plurality of springs for forcing the piston plate toward the turntable are provided between the piston plate and the end cap at regular intervals around the hollow rod as a rotation center.