CN201070681Y

CN201070681Y - Chuck linking pressing device

Info

Publication number: CN201070681Y
Application number: CNU2007201250090U
Authority: CN
Inventors: 吴至一; 钟朝伦; 曾福林; 田贵均; 涂伟; 丁小兵
Original assignee: CHONGQING XINYONG PRECISION ALLOY Co Ltd
Current assignee: CHONGQING XINYONG PRECISION ALLOY Co Ltd
Priority date: 2007-08-21
Filing date: 2007-08-21
Publication date: 2008-06-11
Anticipated expiration: 2017-08-21

Abstract

The utility model discloses a chuck linkage holding apparatus, which comprises a clamp body, a chuck, a clamping claw, a bevel gear and a face tooth. The utility model is characterized in that two open slots are relatively arranged on the clamp body, and a hole is arranged at the lower part of the two open slots. A clamping pressure plate is movably arranged in each open slot, and is connected with the clamping claw by a rotating shaft, and the clamping pressure plate can rotate around the rotating shaft. A lever is arranged in the hole, and both ends of the lever contact the lower ends of the two clamping pressure plates. The chuck linkage holding apparatus of the utility model has the advantage of compact structure, and is only provided with two symmetrical clamping pressure plates which occupy small space. The lever is linked with the two pressure plates, and thrust force that both ends of the lever act on the two pressure plates is uniform. The two pressure plates hold and clamp a component to be processed from two directions, and have the advantages of high holding efficiency, quick and convenient holding and capable of enhancing processing efficiency. A traditional way by using the pressure plate is cancelled, so that the phenomenon that a workpiece falls down from the chuck is avoided, and safe production is ensured.

Description

Chuck interlock hold down gag

Technical field

The utility model relates to a kind of machine tooling location, compresses the chuck interlock hold down gag of chuck assembly, the especially coordinated type of usefulness.

Background technology

With lathe cut, during the various part of processing such as grinding, all need to locate, compress part to be processed with chuck, the scroll chuck of using as machine tool, chuck etc., it is exactly a kind of fixture for processing, part to be processed can be located, compressed, guarantee normally carrying out of processing, to obtain the higher part of precision.As name be called " a kind of lathe chuck ", the patent No. is the disclosed chuck of Chinese utility model patent file of ZL200520018612.X, and name is called " chuck for general purpose machine tool ", the patent No. is the disclosed chuck of Chinese invention patent file of ZL200710053963.8, all is used for machine tooling.But, chuck of the prior art, its deficiency is mainly reflected in following several aspect: it is lower 1, to add clamping in man-hour efficient, makes a plurality of claws can both workpiece pressing, must spend the long time to adjust its position, and operating efficiency reduces; 2, for disk-like accessory or thin shaped piece, the part that especially clamping amount is on the low side, clip position is subjected to certain limitation, the chucking power of generation is less, and workpiece is loosening easily, even flies from chuck, injures personnel or damage equipment by a crashing object; 3, the machining accuracy of part to be processed has much room for improvement, and does not usually reach requirement as the depth of parallelism at two ends, the perpendicularity of axis hole etc., and the clamping when being unfavorable for product lot quantity production especially requires the assurance with the product precision.

Summary of the invention

The utility model is at the above-mentioned deficiency of prior art chuck, provide a kind of simple in structure, interlock compresses, clamping chuck interlock fast and easily hold down gag.

The technical solution of the utility model: chuck interlock hold down gag, comprise clamp body, chuck, claw, bevel gear and end face tooth, it is characterized in that: on clamp body, be oppositely arranged two open slots, below two open slots, the hole is set, packaged type is provided with the clamping pressing plate in every open slot, clamps pressing plate and claw and links together with rotating shaft, and clamping pressing plate can rotate around rotating shaft; In the hole, be provided with lever, the following end in contact of the two ends of lever and two clamping pressing plates;

Further feature is: the upper end that clamps pressing plate is provided with clamp hook;

Described hole is a through hole; Two ends in the hole all are provided with stop screw and nut.

Chuck interlock hold down gag of the present utility model is equivalent to prior art, has following characteristics:

1, compact conformation has only the clamping pressing plate of two symmetries, clamps pressing plate and takes up room little.

2, lever and two pressing plates interlock, it is balanced that the thrust of two pressing plates is given at the two ends of lever, two pressing plates from both direction with part clamping to be processed, compress, clamping efficient height, clamping are efficient and convenient, have improved working (machining) efficiency.

3,, disk-like accessory that clip position be subjected to certain limitation on the low side or thin shaped piece for the clamping amount, the chucking power that produces is bigger, and workpiece compresses easily, prevents that effectively it is loosening, avoid it to fly, injure the rough sledding of personnel or damage equipment by a crashing object from chuck.

4, cancel traditional pressing plate occupation mode, guaranteed safety in production; Be specially adapted to the batch process of automobile, motorcycle accessories.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the utility model structure cutaway view;

Fig. 2 is the vertical view of Fig. 1;

The specific embodiment

In Fig. 1,2, the 1-clamp body, the 2-chuck, the 3-claw, the 4-bevel gear, 5-end face tooth, the 6-open slot, the 7-hole, the 8-lever, 9-clamps pressing plate, 10-rotating shaft, 11-clamp hook, 15-stop screw, 16-nut;

The three-jaw of prior art, chuck, its rotary principle normally is provided with intermeshing bevel gear 4 and end face tooth 5 between chuck 2 and claw 3, when needing clamping or unclamping workpiece to be processed, with external force rotating bevel gear 4, bevel gear 4 just drives end face tooth 5 and does clockwise or be rotated counterclockwise, the claw 3 that end face tooth 5 just drives on the clamp body 1 is done to clamp or unclamp the workpiece to be processed purpose near moving or do away from the moving of the center of circle, reaching to the center of circle.Above-mentioned clamp body 1, chuck 2, claw 3, bevel gear 4, end face tooth 5 etc. all are prior aries, are not further described at this.

Chuck interlock hold down gag of the present utility model, be to be oppositely arranged two open slots 6 in clamp body 1 upper edge diametric(al), below two open slots 6, hole 7 is set, packaged type is provided with and clamps pressing plate 9 in every open slot 6, clamp pressing plate 9 and link together with rotating shaft 10 with claw 3, clamping pressing plate 9 can rotate within the specific limits around rotating shaft 10, and drive clamped pressing plate 9 and do close moving or work moving away from the center of circle to the center of circle in open slot 6 when claw 3 moved; In hole 7, be provided with lever 8, the two ends of lever 8 can with the following end in contact of two clamping pressing plates 9, convenience during for machining hole 7 and the convenient lever 8 of installing, hole 7 is set to through hole usually.In order to produce bigger chucking power, the firm grip workpiece to be processed, the upper end that clamps pressing plate 9 is provided with clamp hook 11, centers on rotating shaft 10 after center of circle direction is rotated at clamping pressing plate 9, clamp hook 11 can be pressed in the retaining part of workpiece to be processed, the firm grip workpiece to be processed.

The two ends of lever 8 all should be in two clamping pressing plates 9; In order to prevent that lever 8 from sliding in 7 from the hole, 7 two ends all have been provided with the stop screw 15 and the nut 16 of shutoff, position-limiting action in the hole.

For the chuck of the transmission mechanism that adopts other, promptly do not adopt the chuck of transmission mechanism of bevel gear 4, the end face tooth 5 of present embodiment, structure of the present utility model is practical equally, can realize the effect of firm grip workpiece equally; Also will fall into protection domain of the present utility model.

Operation principle of the present utility model:

At rotating bevel gear 4, bevel gear 4 just drives end face tooth 5 and does clockwise or be rotated counterclockwise, and end face tooth 5 just drives claw 3 and does near moving or do away from the moving of the center of circle to the center of circle, and claw 3 drives and clamps pressing plates 9 and move in open slot 6 inter-syncs; When the needs holding workpiece, clamping pressing plate 9 does to move near the center of circle, when the lower end of two clamping pressing plates 9 all with after lever 8 contacts, because the position-limiting action of lever 8, it is mobile that two clamping pressing plates 9 all can not be produced, and can only under claw 3 drives, rotate to center of circle direction around rotating shaft 10, clamp hook 11 just is pressed in the retaining part of workpiece to be processed, the firm grip workpiece to be processed.When completion of processing need be taken off workpiece, with regard to backward rotation bevel gear 4, claw 3 is done away from the moving of the center of circle, claw 3 drives and clamps pressing plates 9 synchronously away from the center of circle, clamps pressing plate 9 and just can remove clamping action to workpiece to be processed, unclamps workpiece.

Claims

1. chuck interlock hold down gag, comprise clamp body (1), chuck (2), claw (3), bevel gear (4) and end face tooth (5), it is characterized in that: on clamp body (1), be oppositely arranged two open slots (6), below two open slots (6), hole (7) is set, packaged type is provided with and clamps pressing plate (9) in every open slot (6), clamps pressing plate (9) and links together with rotating shaft (10) with claw (3), clamps pressing plate (9) and can center on rotating shaft (10) rotation; In hole (7), be provided with lever (8), the two ends of lever (8) can with the following end in contact of two clamping pressing plates (9).

2. chuck interlock hold down gag according to claim 1, it is characterized in that: the upper end that clamps pressing plate (9) is provided with clamp hook (11).

3. chuck interlock hold down gag according to claim 1 and 2, it is characterized in that: described hole (7) are through holes; The two ends of (7) all are provided with stop screw (15) and nut (16) in the hole.