CN201287207Y

CN201287207Y - Quick multifunctional chuck

Info

Publication number: CN201287207Y
Application number: CNU2008202252331U
Authority: CN
Inventors: 杨振宇; 苗庆成; 谢士叶; 许志良; 许长河
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2008-11-06
Filing date: 2008-11-06
Publication date: 2009-08-12
Anticipated expiration: 2018-11-06

Abstract

The utility model provides a multifunctional quick-loading and clamping chuck, which comprises a chuck main body, a clamping claw, a plane thread driving disc, a bevel gear column, a gland and a land, wherein, the gland is fixedly mounted at the end part of the inner lug boss inside the chuck main body; the bevel gear column is mounted inside the chuck main body through a positioning rod and meshes with the plane thread driving disc sleeved on the inner lug boss; and the chuck is characterized in that the clamping claw comprises a group of inner clamping claws and a group of outer clamping claws which are equal in number, a group of transmission screws provided with locating grooves at the two ends respectively are added; the inner clamping claws are uniformly distributed on the plane thread driving disc along the radial direction and meshes with the plane thread driving disc; each transmission screw is mounted on an arc groove of the inner clamping claw; the outer clamping claws are uniformly distributed on the chuck main body along the radial direction and are located above each transmission screw correspondingly and are in thread engagement with the transmission screws. The principle of the ordinary three jaw chuck and the principle of the four jaw chuck are combined in the utility model, so that troubles caused by the replacement and reinstallation of chucks can be avoided, and meanwhile, the central loading and clamping and the eccentric loading and clamping are simplified; and the working performance is excellent.

Description

The multi-functional chuck of quick-clamping

Technical field

The utility model provides a kind of quick-clamping multi-functional chuck, belongs to the Machining Technology field.

Background technology

In present existing process technology, all pass on the engine lathe and use scroll chuck, enforcement is to the clamping of cylinder, dish-type workpiece, often equipped chuck or multijaw chuck on the big specification lathe, realization is to the off-centre clamping of workpiece or the clamping of the asymmetric workpiece of profile, and the profile difference of workpiece in the work certainly will cause frequent replacing chuck to be tackled, its inefficiency, positioning accuracy is low.The utility model is to address the above problem, and reaches the purpose that a chuck is used more.

The utility model content

The purpose of this utility model provides a kind ofly can overcome above-mentioned defective, change the outfit that chuck is simple, the multi-functional chuck of quick-clamping of excellent working performance.Its technical scheme is:

Comprise chuck main body, claw, the flat thread drive plate, the bevel gear post, gland, terminal pad, wherein gland is fixedly mounted on the end of the inner convex platform in the chuck main body, terminal pad is fixed on the bottom of chuck main body, its upper surface and gland contact, the bevel gear post is in backstay is installed in chuck main body, and with the flat thread drive plate tooth engagement that is sleeved on the inner convex platform, it is characterized in that: claw comprises one group of interior claw and one group of outer claw that quantity equates, interior claw radially is distributed on the flat thread drive plate and with its tooth and meshes, the projection that is provided with in groove on the sidewall and the chuck main body is coincide, set up one group of both ends and be equipped with locating slot, and the drive screw that quantity equates with interior claw, drive screw is installed on the arc groove of interior claw, outer claw radially is distributed on the chuck main body and the corresponding top that is positioned at each drive screw, the projection that is provided with in groove on its sidewall and the chuck main body is coincide, outer claw and drive screw screw-threaded engagement, the outer end of claw and drive screw is provided with pin-and-hole outside.

The multi-functional chuck of described quick-clamping, the quantity of claw, outer claw and drive screw can be one of 4 or 5 or 6 in one group.

The multi-functional chuck of described quick-clamping, during the clamping of center, interior claw and the sidewall that is positioned at the outer claw of its top align through the spring holder that cooperates with pin-and-hole location, during eccentric clamping, do not have spring holder on the outer claw of correspondence on the eccentric direction.

Its operation principle is: during the clamping of center, rotating drive screw respectively makes spring holder arrive the position location, this moment outer claw side and relative separately interior claw side consistency from top to bottom, this moment is by the Rotatable umbrella sprocket, the bevel gear post drives in each claw along moving perpendicular to the direction of chuck main body axis normal is equidistant by the flat thread drive plate, interior claw is restrained with the relative free degree of drive screw vertical direction, drive screw guarantees that by the screw thread self-locking drive screw and outer claw in the vertical direction can not relatively move, and therefore just can reach the equidistant action simultaneously of the inside and outside claw of each group is the purpose of simple and easy center clamping.

During the off-centre clamping, the spring holder of corresponding outer claw on the eccentric clamping direction of needs is screwed out, rotate drive screw on its direction make with its mutually the outer claw of screw-threaded engagement enough clamping spaces are arranged, then by Rotatable umbrella sprocket inside and outside equidistant moving inward of claw while this moment, make remaining outer claw not need the eccentric direction clamping that clamps on a plane at chuck main body axis place workpiece, rotate the position of the drive screw clamping eccentric direction on the eccentric direction then, can reach the purpose of simple and easy eccentric clamping.

The utility model compared with prior art, its advantage is that common scroll chuck clamping principle is combined with common chuck clamping principle, avoided the changing the outfit trouble of chuck, the center clamping and the eccentric clamping of chuck have been simplified simultaneously, improved aligning precision, service behaviour is superior, has improved operating efficiency greatly.

Description of drawings

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

Fig. 2 is a partial sectional view embodiment illustrated in fig. 1;

Fig. 3 is a vertical view embodiment illustrated in fig. 1;

Fig. 4 be embodiment illustrated in fig. 1 in the A of claw to figure;

Fig. 5 be embodiment illustrated in fig. 4 in the B of claw to view.

Among the figure: 1, spring holder 2, pin-and-hole 3, projection 4, drive screw 5, locating slot 6, interior claw 7, flat thread drive plate 8, backstay 9, bevel gear post 10, gland 11, terminal pad 12, connecting hole 13, fastening bolt 14, trip bolt 15, inner convex platform 16, groove 17, chuck main body 18, arc groove 19, outer claw

The specific embodiment

In the example shown in Fig. 1-4: terminal pad 11 is fixed on the bottom of chuck main body 17 by fastening bolt 13, flat thread rolling disc 7 is sleeved on the inner convex platform 15 of chuck main body 17, and by gland 10 from the bottom to it along axis direction of chuck main body 17 location, the lower surface of gland 10 and terminal pad 11 contact, and be fastened on the end of chuck main body 17 inner convex platforms 15 by trip bolt 14, the hole of a plurality of bevel gear posts 9 on being distributed on chuck main body 17 penetrates in the chuck main body 17, and mesh with flat thread drive plate 7 teeth, 4 interior claws 6 radially are distributed on the flat thread drive plate 7 and with its tooth and mesh, groove 16 on the sidewall coincide with the chuck main body 17 interior projectioies that are provided with 3,4 drive screw 4 correspondences are installed on the arc groove 18 of claw 6 in each, 4 outer claws 19 radially are distributed on the chuck main body 17 and the corresponding top that is positioned at each drive screw 4, groove 16 on its sidewall coincide with the chuck main body 17 interior projectioies that are provided with 3, outer claw 19 and drive screw 4 screw-threaded engagement, claw 19 is provided with pin-and-hole 2 with the outer end of drive screw 4 outside.During the center clamping, align in interior claw 6 and spring holder 1 location of sidewall through cooperating with pin-and-hole 2 that is positioned at the outer claw 19 of its top, during eccentric clamping, and no spring holder 1 on the outer claw 19 of correspondence on the eccentric direction.

Claims

1, the multi-functional chuck of a kind of quick-clamping, comprise chuck main body (17), claw, flat thread drive plate (7), bevel gear post (9), gland (10), terminal pad (11), wherein gland (10) is fixedly mounted on the end of the inner convex platform (15) in the chuck main body (17), terminal pad (11) is fixed on the bottom of chuck main body (17), its upper surface and gland (10) contact, bevel gear post (9) is in backstay (8) is installed in chuck main body (17), and with flat thread drive plate (7) the tooth engagement that is sleeved on the inner convex platform (15), it is characterized in that: claw comprises claw (6) and one group of outer claw (19) in a group that quantity equates, interior claw (6) radially is distributed on flat thread drive plate (7) and upward and with its tooth meshes, groove on the sidewall (16) coincide with the interior projection (3) that is provided with of chuck main body (17), set up one group of both ends and be equipped with locating slot (5), and the drive screw (4) that quantity equates with interior claw (6), drive screw (4) is installed on the arc groove (18) of interior claw (6), outer claw (19) radially is distributed on the top that the last also correspondence of chuck main body (17) is positioned at each drive screw (4), groove on its sidewall (16) coincide with the interior projection (3) that is provided with of chuck main body (17), outer claw (19) and drive screw (4) screw-threaded engagement, claw (19) is provided with pin-and-hole (2) with the outer end of drive screw (4) outside.

2, the multi-functional chuck of quick-clamping as claimed in claim 1 is characterized in that: the quantity of claw (6), outer claw (19) and drive screw (4) can be one of 4 or 5 or 6 in one group.

3, the multi-functional chuck of quick-clamping as claimed in claim 1 is characterized in that: during the clamping of center, interior claw (6) and the sidewall that is positioned at the outer claw (19) of its top are located through the spring holder (1) that cooperates with pin-and-hole (2) and are alignd.

4, the multi-functional chuck of quick-clamping as claimed in claim 1 is characterized in that: during eccentric clamping, outer claw (19) corresponding on the eccentric direction is gone up no spring holder (1).