CN211218739U - Thread-adjustable separation jaw device for universal three-jaw chuck - Google Patents

Abstract

The utility model provides a thread-adjustable separating jaw device for a universal three-jaw chuck. A thread-adjustable separating jaw device for a universal three-jaw chuck, comprising: a base jaw; a movable jaw, which is arranged on the base jaw; and a boss, which is opened on the base jaw ; Groove, the groove is opened on the movable claw. The thread-adjustable separating jaw device for the universal three-jaw chuck provided by the utility model has the advantages of simple and rapid clamping of the three-jaw chuck and the advantages of the single-jaw and single-action precision adjustment of the four-jaw chuck, and is compatible with various models. Universal three-jaw chuck, which can be applied to the adjustable jaws of multi-jaw linkage chucks such as two-jaw to six-jaw.

Description

Threaded Adjustable Breakaway Jaw Assembly for Universal 3-Jaw Chuck

technical field

The utility model relates to the technical field of mechanical processing equipment, in particular to a thread-adjustable separating jaw device for a universal three-jaw chuck.

Background technique

The three-jaw chuck is composed of a chuck body, a movable jaw and a jaw drive mechanism. Below the guide parts of the three jaws on the three-jaw chuck, there are threads that mesh with the plane threads on the back of the bevel bevel gear. Drive the three jaws to approach or withdraw from the center to clamp workpieces of different diameters. It is used to replace the three anti-jaws on the three jaws to install workpieces with larger diameters.

At present, the general three-jaw chuck used in various machine tools in the machining industry is characterized by three-jaw linkage, which cannot be adjusted by single-jaw and single-action. Its radial clamping accuracy is affected by manufacturing accuracy, wear and clamping force deformation, etc Influenced by factors, it cannot meet the requirements when clamping and processing round workpieces with high concentricity requirements. If the four-jaw chuck is used for clamping and processing, there are problems such as heavy replacement, complicated clamping and calibration, and affecting efficiency, which are insufficient.

Therefore, it is necessary to provide a thread-adjustable separating jaw device for a universal three-jaw chuck to solve the above-mentioned technical problems.

Utility model content

The technical problem solved by the utility model is to provide a three-jaw chuck that combines the advantages of simple and fast clamping with a three-jaw chuck and a four-jaw chuck that can be precisely adjusted with a single jaw and a single action. A thread-adjustable separating jaw device for universal three-jaw chucks on the adjustable jaws of multi-jaw linkage chucks such as two-jaw to six-jaw.

In order to solve the above-mentioned technical problems, the utility model provides a thread-adjustable separating jaw device for a universal three-jaw chuck, comprising: a base jaw; a movable jaw, which is arranged on the base jaw; The boss is opened on the base claw; the groove is opened on the movable claw; the top of the boss is provided with a semicircular groove, and the top of the groove is provided with two grooves. A semicircular thread groove is rotatably installed in the semicircular groove, and the lead screw is engaged with the corresponding semicircular thread groove.

Preferably, the screw rod is provided with an annular clamping groove, a clamping block is rotatably installed on the annular clamping groove, the clamping block is fixedly connected with the semicircular groove, and one end of the screw rod is provided with a hexagonal groove.

Preferably, the base claw is provided with a screw hole, the movable claw is provided with a screw through hole, and the screw through hole and the inner thread of the screw hole are installed with the same screw.

Preferably, an L-shaped plate is fixedly installed on one side of the base claw, a rotating rod is rotatably installed on the L-shaped plate, one end of the rotating rod is fixedly installed with a square rod, and one end of the rotating rod is equipped with a moving rod. The moving rod is provided with a square groove, the square rod is slidably connected with the square groove, and one end of the square rod is fixedly installed with a hexagonal block, and the hexagonal block is adapted to the hexagonal groove.

Preferably, a handle is fixedly installed at one end of the rotating rod away from the square rod.

Preferably, the boss is a T-shaped boss or a convex boss; the groove is a T-shaped groove or a concave groove.

Compared with the related art, the thread adjustable separating jaw device for a universal three-jaw chuck provided by the present invention has the following beneficial effects:

The utility model provides a thread adjustable separating jaw device for a universal three-jaw chuck. The device can not only realize three-jaw linkage, but also single-jaw movement. First, the groove on the movable jaw is clamped in the On the boss on the base claw, when there is no need to adjust the movable claw, the movable claw can be fixed with the base claw by using a screw. When the movable claw needs to be adjusted, remove the screw, insert the inner hexagon into the hexagonal groove, and rotate the inner hexagonal. , the screw rod rotates, and the screw rod rotates to make the movable claw move, so that the movable claw can be adjusted, so that the movable claw can better adapt to the clamping of different objects. Because it is driven by the screw rod, the accuracy of the movable claw can be controlled within a range. More precise, the two ends of the movable jaw can be exchanged for use, and the above functions can be realized. This device combines the advantages of simple and fast clamping of the three-jaw chuck and the advantages of single-jaw and single-action precision adjustment of the four-jaw chuck, and is compatible with various models. The three-jaw chuck can be applied to the adjustable jaws of multi-jaw linkage chucks such as two-jaw to six-jaw.

Description of drawings

1 is a schematic structural diagram of a first embodiment of a thread adjustable separating jaw device for a universal three-jaw chuck provided by the present invention;

Fig. 2 is the enlarged schematic diagram of A part shown in Fig. 1;

Fig. 3 is the side view sectional structure schematic diagram of A part shown in Fig. 1;

Fig. 4 is the structural representation of the base claw shown in Fig. 1;

Fig. 5 is the front structure schematic diagram of the base claw shown in Fig. 1;

Fig. 6 is the front structure schematic diagram of the movable claw shown in Fig. 1;

Fig. 7 is the top-view structure schematic diagram of the base claw shown in Fig. 1;

8 is a schematic structural diagram of a second embodiment of a thread adjustable separating jaw device for a universal three-jaw chuck provided by the present invention;

Figure 9 is an enlarged schematic view of part B shown in Figure 8;

Fig. 10 is a side cross-sectional structural schematic diagram of part B shown in Fig. 8;

FIG. 11 is a schematic cross-sectional structural diagram of the moving rod shown in FIG. 8 .

Labels in the figure: 1, base claw, 2, movable claw, 3, boss, 4, semicircular groove, 5, groove, 6, semicircular thread groove, 7, screw rod, 8, clamping block, 9, hexagonal groove, 10, screw, 11, L-shaped plate, 12, rotating rod, 13, square rod, 14, moving rod, 15, square groove, 16, hexagonal block, 17, handle.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and embodiments.

first embodiment

1-7, in the first embodiment of the present utility model, the thread adjustable separation jaw device for a universal three-jaw chuck includes: a base jaw 1; On the base claw 1; a boss 3, the boss 3 is opened on the base claw 1; a groove 5, the groove 5 is opened on the movable claw 2.

The top of the boss 3 is provided with a semicircular groove 4, the top of the groove 5 is provided with two semicircular thread grooves 6, and a screw rod 7 is rotatably installed in the semicircular groove 4, The lead screw 7 is engaged with the corresponding semicircular thread groove 6 .

The screw rod 7 is provided with an annular clamping groove, and a clamping block 8 is rotatably installed on the annular clamping groove. The clamping block 8 is fixedly connected with the semicircular groove 4, and one end of the screw rod 7 is opened. There are hexagonal grooves 9.

The base claw 1 is provided with a screw hole, the movable claw 2 is provided with a screw through hole, and the screw through hole and the inner thread of the screw hole are installed with the same screw 10 .

The working principle of the thread adjustable separating jaw device for a universal three-jaw chuck provided by the present invention is as follows:

This device can be applied to the adjustable jaws of multi-jaw linkage chucks such as two-jaw to six-jaw. This device is different from the traditional device. This device can not only realize three-jaw linkage, but also can realize single-jaw movement. First of all, The groove 5 on the movable claw 2 is clamped on the boss 3 on the base claw 1. When the movable claw does not need to be adjusted, the movable claw 2 and the base claw 1 can be fixed by the screw 10. When the movable claw needs to be adjusted, The screw 10 is removed, inserted into the hexagonal groove 9 using the inner hexagon, and the inner hexagon is rotated to make the screw 7 rotate, and the screw 7 rotates to move the movable claw 2, so that the movable claw 2 can be adjusted, so that the movable claw 2 can be more It is suitable for the clamping of different objects. Because it is driven by the screw rod 7, the precision controllable range of the movable claw 2 is more precise.

The boss is a T-shaped boss or a convex boss; the groove is a T-shaped groove or a concave groove.

In this embodiment, the boss is preferably a T-shaped boss, and the groove is preferably a T-shaped groove.

In other implementations, the bosses can also be convex bosses; the grooves can also be concave grooves. The convex bosses and the concave grooves have the same shape as the convex bosses and the concave grooves in the prior art.

Compared with the related art, the thread adjustable separating jaw device for a universal three-jaw chuck provided by the present invention has the following beneficial effects:

This device is different from the traditional device. This device can not only realize three-claw linkage, but also can realize single-claw movement. First, the groove 5 on the active claw 2 is clamped on the boss 3 on the base claw 1, without the need When adjusting the movable claw, use the screw 10 to fix the movable claw 2 and the base claw 1. When the movable claw needs to be adjusted, remove the screw 10, insert the inner hexagon into the hexagonal groove 9, and rotate the inner hexagon to make the screw 7 Rotation, the screw rod 7 rotates to move the movable claw 2, so that the movable claw 2 can be adjusted, so that the movable claw 2 can better adapt to the clamping of different objects. Because it is driven by the screw rod 7, the accuracy of the movable claw 2 can be The control range is more precise, and the two ends of the movable jaw 2 can be exchanged for use, which can achieve the above functions. Universal three-jaw chuck for all models, which can be applied to the adjustable jaws of multi-jaw linkage chucks such as two-jaw to six-jaw.

Second embodiment:

Based on the thread-adjustable separating jaw device for a universal three-jaw chuck provided in the first embodiment of the present application, the second embodiment of the present application proposes another thread-adjustable separating jaw for a universal three-jaw chuck Claw device. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

The second embodiment of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

Please refer to FIGS. 8-11 in conjunction with the threaded adjustable separating jaw device for a universal three-jaw chuck further comprising an L-shaped plate 11 , the L-shaped plate 11 is fixedly installed on one side of the base jaw 1 , and the A rotating rod 12 is rotatably mounted on the L-shaped plate 11 , one end of the rotating rod 12 is fixedly mounted with a square rod 13 , one end of the rotating rod 12 is provided with a moving rod 14 , and a square groove 15 is formed on the moving rod 14 , the square rod 14 is slidably connected with the square groove 15 , and a hexagonal block 16 is fixedly installed at one end of the square rod 14 , and the hexagonal block 16 is adapted to the hexagonal groove 9 .

A handle 17 is fixedly installed at one end of the rotating rod 12 away from the square rod 13 .

Due to the fact that sometimes the active claw 2 may need to be adjusted more frequently during work, the staff needs to constantly take out the hexagon socket tool to adjust it, which also brings inconvenience to the staff. At this time, when adjusting, the 14 can be moved to make 15 slides on 13, 14 drives 16 to move, so that 16 enters 9, and then turns 17, 17 drives 12 to rotate, 12 drives 13 to rotate, 13 drives 14 to rotate, 14 drives 16 to rotate, so that 7 rotates, which can The live claw is adjusted, so that the staff can adjust the live claw quickly and easily.

The above-mentioned bosses 3 and grooves 5 can also be set in the form of convex bosses and concave grooves

The above are only the embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and accompanying drawings of the present invention, or directly or indirectly applied to other Relevant technical fields are similarly included in the scope of patent protection of the present invention.

Claims (6)

1. A thread adjustable separating jaw device for a universal three-jaw chuck is characterized in that, comprising: base claw; a live claw, the live claw is arranged on the base claw; a boss, the boss is opened on the base claw; a groove, the groove is opened on the movable claw; The top of the boss is provided with a semi-circular groove, the top of the groove is provided with two semi-circular thread grooves, and a screw rod is rotatably installed in the semi-circular groove, and the screw rod is connected with the corresponding screw. The semicircular thread grooves engage. 2 . The thread adjustable separating jaw device for a universal three-jaw chuck according to claim 1 , wherein the screw rod is provided with an annular clamping groove, and the annular clamping groove is rotatably installed with a clamping jaw. 3 . The clamping block is fixedly connected with the semicircular groove, and one end of the screw rod is provided with a hexagonal groove. 3 . The thread adjustable separating jaw device for a universal three-jaw chuck according to claim 1 , wherein the base jaw is provided with a screw hole, and the movable jaw is provided with a screw through hole, 3 . The screw through hole and the screw hole inner thread are installed with the same screw rod. 4 . The screw adjustable separation jaw device for a universal three-jaw chuck according to claim 2 , wherein an L-shaped plate is fixedly installed on one side of the base jaw, and the L-shaped plate rotates. 5 . A rotating rod is installed, one end of the rotating rod is fixedly installed with a square rod, one end of the rotating rod is provided with a moving rod, a square groove is opened on the moving rod, and the square rod is slidably connected with the square groove, One end of the square rod is fixedly mounted with a hexagonal block, and the hexagonal block is adapted to the hexagonal groove. 5 . The threaded adjustable separating jaw device for a universal three-jaw chuck according to claim 4 , wherein a handle is fixedly installed at one end of the rotating rod away from the square rod. 6 . 6 . The thread adjustable separating jaw device for a universal three-jaw chuck according to claim 1 , wherein the boss is a T-shaped boss or a convex boss; the groove is a T-shaped boss. 7 . grooves or concave grooves.

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