CN217192661U - Cylinder-driven swing arm clamping jaw hollow automatic rotating chuck - Google Patents

Abstract

The utility model discloses a cylinder-driven swing arm clamping jaw hollow automatic rotating chuck, which comprises a first end cover and a second end cover, the inner side of a first bearing is movably connected with a first supporting end cover, a clamping jaw seat is fixedly arranged in the first supporting end cover, a clamping jaw is movably arranged in the clamping jaw seat, the inner side of the second bearing seat is welded with a second supporting end cover, the outer side of the second end cover is fixedly connected with a cylinder body, the cylinder body is enabled to work by starting a solenoid valve, a cylinder pushes a belt rod piston to move downwards, the belt rod piston drives a push-pull pipe to vertically move downwards, a push-pull disc moves downwards to drive a pulling fork seat to move therewith, a pulling fork hinged with the pulling fork rotates along with a positioning hinge point, one end of a far positioning hinge point of the pulling fork drives the clamping jaw to move upwards, thereby clamping and fixing a workpiece, the utility model adopts a cylinder pushing mode to adjust the moving range of the clamping jaw, the opening and closing range of the chuck sleeve can be enlarged, and the chuck sleeve can be matched with a machine tool to fix a heavy long rod piece with the length range of the opposite sides of the section being 22-76 mm.

Description

Cylinder-driven swing arm clamping jaw hollow automatic rotating chuck

Technical Field

The utility model relates to a rotating chuck technical field specifically is a cylinder drive swing arm jack catch cavity autogiration chuck.

Background

The chuck is a mechanical device used for clamping and fixing a workpiece on a machine tool. The chuck generally comprises a chuck body, movable jaws and a chuck driving mechanism. The chuck can be divided into an electric chuck, a pneumatic chuck, a hydraulic chuck, a manual chuck and a mechanical chuck in terms of using power. The maximum opening degree of the hollow rotatable pneumatic chuck and the hydraulic chuck is only 15mm, and the clamping jaws can be manually replaced and adjusted only according to the size of a machined workpiece. At present, the hollow automatic rotatable chuck with the maximum opening degree of 80mm and the jaw moving range of 20 mm-80 mm cannot be found in the market.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder drive swing arm jack catch cavity autogiration chuck to solve the problem that above-mentioned background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic hollow rotary chuck of a swing arm claw driven by a cylinder comprises a first end cover and a second end cover, the first end cover and the second end cover are respectively and fixedly provided with a first bearing seat and a second bearing seat through a first inner hexagon bolt and a fourth inner hexagon bolt, a first bearing is arranged in the first bearing seat, a first supporting end cover is movably connected with the inner side of the first bearing, a jaw seat is fixedly arranged in the first supporting end cover, a jaw is movably arranged in the jaw seat, a second bearing is fixedly arranged in the second bearing seat, a second supporting end cover is welded on the inner side of the second bearing seat, the inner side of the second supporting end cover is fixedly connected with the inner side of the cylinder rear end cover through a third inner hexagon bolt, the outer side of the second end cover is fixedly connected with a cylinder body, and the cylinder body is fixedly arranged on the inner side of the cylinder rear end cover through a fifth inner hexagon bolt.

Preferably, a shifting fork penetrates through the inside of the clamping jaw, one end of the shifting fork is fixedly hinged inside the first supporting end cover, the upper end of the shifting fork is hinged with a shifting fork seat through a pin shaft, and the shifting fork seat is fixed on one side of the push-pull disc through a second inner hexagonal bolt.

Preferably, the bottom of push-and-pull dish is fixed connection push-and-pull pipe, push-and-pull pipe keeps away from one side top fixed connection third bearing of push-and-pull dish, the top fixedly connected with of third bearing takes the pole piston, it sets up to take the pole piston the lower extreme of cylinder block.

Preferably, a first sealing ring and a third sealing ring are respectively filled in a gap between the cylinder body and the rear end cover of the cylinder, and a second sealing ring is filled in a gap between the cylinder body and the piston with the rod.

Preferably, a locking nut is fixedly arranged at the upper end of one side of the third bearing, and the lower end of the locking nut is located at one side of the third bearing and is provided with an adjusting nut.

Preferably, a shaft check ring is fixedly arranged at the rear end of the first end cover, the shaft check ring is fixed at the top of the base through a sixth hexagon socket head cap screw, the base is fixedly arranged at the top of the supporting seat, the supporting seat is fixed at the top of the track, and an electromagnetic valve is arranged on one side of the supporting seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. make cylinder block work through starting the solenoid valve, the cylinder promotes takes the pole piston downstream, takes the pole piston to drive the vertical downstream of push-and-pull pipe under the effect of third bearing (thrust bearing), thereby make the push-and-pull pipe drive three group's push-and-pull dish downstream, push-and-pull dish downstream drives and pulls out the fork seat and move along with it, makes articulated fork of pulling out with it rotatory along with the location pin joint, and the far away location pin joint one end of pulling out the fork drives the jack catch and upwards shifts, thereby presss from both sides tight fixed to the work piece, the utility model discloses because of the home range that the jack catch was adjusted to the mode that adopts the cylinder to promote, can increase the telescopic range that opens and shuts of chuck, can cooperate the fixed cross-section of lathe to the heavy long member that the range of length is 22m ~ 76 mm.

Drawings

FIG. 1 is a cross-sectional view of a hollow spin chuck according to the present invention;

FIG. 2 is a front view of the hollow spin chuck of the present invention;

fig. 3 is a side view of the whole installation of the present invention.

In the figure: 1. first end cap, 2, first hexagon socket head cap, 3, bearing, 4, first bearing seat, 5, first supporting end cap, 6, clamping jaw seat, 7, clamping jaw, 8, pulling fork, 9, pin shaft, 10, sleeve, 11, pulling fork seat, 12, second hexagon socket head cap, 13, push-pull disc, 14, third hexagon socket head cap bolt, 15, second supporting end cap, 16, second bearing seat, 17, second bearing, 18, fourth hexagon socket head cap bolt, 19, second end cap, 20, first seal ring, 21, cylinder block, 22, second seal ring, 23, rod-containing piston, 24, fifth hexagon socket head cap bolt, 25, cylinder rear end cap, 26, third seal ring, 27, third bearing, 28, lock nut, 29, adjusting nut, 30, third axis push-pull tube, 31, sixth hexagon socket head cap bolt, 32, base, 33, axis retainer ring, 34, supporting seat, 35, solenoid valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a hollow automatic rotating chuck of a swing arm clamping jaw driven by an air cylinder comprises a first end cover 1 and a second end cover 19, wherein the first end cover 1 and the second end cover 19 are respectively fixedly provided with a first bearing seat 4 and a second bearing seat 16 through a first inner hexagonal bolt 2 and a fourth inner hexagonal bolt 18, a first bearing 3 is arranged inside the first bearing seat 4, the inner side of the first bearing 3 is movably connected with a first supporting end cover 5, a clamping jaw seat 6 is fixedly arranged inside the first supporting end cover 5, a clamping jaw 7 is movably arranged inside the clamping jaw seat 6, a second bearing 17 is fixedly arranged inside the second bearing seat 16, a second supporting end cover 15 is welded on the inner side of the second bearing seat 16, the inner side of the second supporting end cover 15 is fixedly connected with a 10 through a third inner hexagonal bolt 14, the outer side of the second end cover 19 is fixedly connected with an air cylinder body 21, the air cylinder body 21 is fixedly arranged on the inner side of an air cylinder rear end cover 25 through a fifth inner hexagonal bolt 24, the first bearing 3 and the second bearing 17 enable the inner chuck to rotate freely with the random machine.

In this embodiment, the inside of jack catch 7 runs through and has pulled out fork 8, and the one end location of pulling out fork 8 articulates in the inside of first support end cover 5, and the upper end of pulling out fork 8 is articulated through round pin axle 9 and pulls out fork seat 11, pulls out fork seat 11 and fixes in one side of push-and-pull dish 13 through second hexagon socket head cap screw 12, pulls out the fork and can rotate round location pin joint, makes to pull out the fork seat and can make to pull out the fork rotation under push-and-pull dish's drive to adjust the jack catch.

In the present embodiment, the bottom of the push-pull plate 13 is fixedly connected with the push-pull tube 30, the top of the push-pull tube 30 far away from the push-pull plate 13 is fixedly connected with the third bearing 27, the top of the third bearing 27 is fixedly connected with the rod-equipped piston 23, the rod-equipped piston 23 is arranged at the lower end of the cylinder block 21, and the cylinder block 21 can change the internal pressure thereof so as to press the rod-equipped piston 23, so that the rod-equipped piston 23 moves downward.

In the embodiment, a first sealing ring 20 and a third sealing ring 26 are respectively filled in a gap between the cylinder block 21 and the cylinder rear end cover 25, and a second sealing ring 22 is filled in a gap between the cylinder block 21 and the rod-containing piston 23, so as to ensure the sealing connection between the cylinder block 21 and the rod-containing piston 23.

In this embodiment, a locking nut 28 is fixedly arranged at the upper end of one side of the third bearing 27, an adjusting nut 29 is arranged at one side of the lower end of the locking nut 28, which is located on the third bearing 27, so that the third bearing 27 is convenient to overhaul and replace, and the third bearing 27 is a thrust bearing, which has a centering function, so that the push-pull pipe 30 can move downwards stably.

In this embodiment, a shaft retainer 33 is fixedly disposed at the rear end of the first end cap 1, the shaft retainer 33 is fixed at the top of the base 32 by a sixth hexagon socket head cap 31, the base 32 is fixedly mounted at the top of the support seat 34, the support seat 34 is fixed at the top of the track, and an electromagnetic valve 35 is disposed at one side of the support seat 34.

The working principle is as follows: the utility model relates to a cylinder-driven swing arm clamping jaw hollow automatic rotating chuck, firstly, a workpiece is penetrated into a sleeve 10, a solenoid valve 35 is started to enable a cylinder body 21 to work, a cylinder pushes a rod-carrying piston 23 to move downwards, the rod-carrying piston 23 drives a push-pull pipe 30 to move vertically downwards under the action of a third bearing 27 (thrust bearing), thereby the push-pull pipe 30 drives three groups of push-pull discs 13 to move downwards, the push-pull disc 13 moves downwards to drive a pull fork seat 11 to move along with the push-pull disc, a pull fork 8 hinged with the pull fork seat rotates along with a positioning hinge point, one end of a far positioning hinge point of the pull fork 8 drives a clamping jaw 7 to move upwards, thereby clamping and fixing the workpiece, the utility model adopts a cylinder-driven mode to adjust the moving range of the clamping jaw 7, can increase the opening and closing range of the chuck sleeve 10, can be matched with a heavy long rod piece with a fixed section opposite side length range of 22 mm-76 mm of a machine tool, those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a cylinder drive swing arm jack catch cavity autogiration chuck, includes first end cover (1) and second end cover (19), first end cover (1) with second end cover (19) have first bearing frame (4) and second bearing frame (16), its characterized in that through first hexagon socket head cap screw (2) and fourth hexagon socket head cap screw (18) fixed mounting respectively: the utility model discloses a bearing structure, including first bearing (4), the internally mounted of first bearing (4) has first bearing end cover (3), the inboard swing joint of first bearing (3) has first bearing end cover (5), the inside fixed mounting of first bearing end cover (5) has jack catch seat (6), the inside movable mounting of jack catch seat (6) has jack catch (7), the inside fixed mounting of second bearing (16) has second bearing (17), the inboard welding of second bearing (16) has second bearing end cover (15), the inboard of second bearing end cover (15) is through third hexagon socket head cap screw (14) fixed connection (10), the outside fixed connection of second end cover (19) has cylinder block (21), cylinder block (21) are through the inboard of fifth hexagon socket head cap screw (24) fixed mounting at cylinder rear end cap (25).

2. The cylinder driven swing arm jaw hollow automatic rotation chuck according to claim 1, characterized in that: the inside of jack catch (7) runs through and has pulled out fork (8), the one end location of pulling out fork (8) articulates the inside of first supporting end cover (5), the upper end of pulling out fork (8) is articulated through round pin axle (9) and pulling out fork seat (11), it fixes in one side of push-and-pull dish (13) through second hexagon socket head cap screw (12) to pull out fork seat (11).

3. The cylinder driven swing arm jaw hollow automatic rotation chuck according to claim 2, characterized in that: bottom fixed connection push-and-pull pipe (30) of push-and-pull dish (13), push-and-pull pipe (30) are kept away from one side top fixed connection third bearing (27) of push-and-pull dish (13), the top fixedly connected with of third bearing (27) takes pole piston (23), take pole piston (23) to set up the lower extreme of cylinder block (21).

4. The cylinder driven swing arm jaw hollow automatic rotation chuck according to claim 3, characterized in that: and a first sealing ring (20) and a third sealing ring (26) are respectively filled in the gap between the cylinder body (21) and the cylinder rear end cover (25), and a second sealing ring (22) is filled in the gap between the cylinder body (21) and the piston (23) with the rod.

5. The cylinder driven swing arm jaw hollow automatic rotation chuck according to claim 3, characterized in that: and a locking nut (28) is fixedly arranged at the upper end of one side of the third bearing (27), and the lower end of the locking nut (28) is positioned at one side of the third bearing (27) and is provided with an adjusting nut (29).

6. The cylinder driven swing arm jaw hollow automatic rotation chuck according to claim 1, characterized in that: the rear end of first end cover (1) is fixed and is equipped with for the axle retaining ring (33), the top at base (32) is fixed through sixth hexagon socket head cap screw (31) to axle retaining ring (33), base (32) fixed mounting is at the top of supporting seat (34), the top at the rail is fixed in supporting seat (34), one side of supporting seat (34) is provided with solenoid valve (35).

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