CN207289492U - Combined type columnar workpiece self clamping device - Google Patents

Abstract

The utility model discloses a self-locking clamping device for a combined columnar workpiece, which comprises a base, a threaded rod, an internal threaded sleeve which cooperates with the threaded rod to form a threaded transmission pair, and a door-shaped bracket with a T-shaped groove joint at the lower end. The upper side of the base is provided with a V-shaped groove for preventing the rolling of the columnar workpiece to be processed, and the upper side of the base is symmetrically arranged with T-shaped grooves on both sides of the V-shaped groove, and the T-shaped groove arranged at the lower end of the door-shaped bracket The slot joint is slidingly fitted in the T-shaped slot of the base, the inner threaded sleeve is fixedly installed on the upper side of the door-shaped bracket, the inner threaded sleeve is installed with the threaded rod, and the upper end of the threaded rod A drive handle for driving the threaded rod to rotate is fixedly installed. The utility model has the following characteristics: reasonable design, reliable workpiece clamping, self-locking, unrestricted travel, simple structure, convenient operation, convenient disassembly, long service life, wide application range, and easy popularization and use.

Description

Combined self-locking clamping device for cylindrical workpiece

technical field

The utility model belongs to the technical field of mechanical processing and relates to a clamping device, in particular to a combined self-locking clamping device for columnar workpieces.

Background technique

At present, during the machining of columnar workpieces, the most commonly used clamping tool is a three-jaw chuck because the outer contour of the columnar workpiece has a certain curvature. The three-jaw chuck is composed of a chuck body, movable jaws and jaw driving mechanism. There are threads under the guide parts of the three claws on the three-jaw chuck that mesh with the plane threads on the back of the bevel gear. When the small bevel gear is turned with a wrench through the square hole, the bevel gear rotates, and the plane threads on the back drive the bevel gear at the same time. The three jaws approach or withdraw from the center to clamp workpieces with different diameters, but the three-jaw chuck is used for a long time, the chuck will wear out, and the three jaws will also appear bell-shaped, making the three jaws deviate from the chuck In addition, the three-jaw chuck still has the disadvantages of large volume, heavy weight, and difficult disassembly.

Utility model content

The purpose of this utility model is to overcome the shortcomings in the above-mentioned prior art and provide a combined self-locking clamping device for columnar workpieces. The utility model has the advantages of convenient disassembly and assembly, long service life, wide application range and convenient popularization and use.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a combined self-locking clamping device for columnar workpieces, which includes a base that acts as a fixed support, and is characterized in that it also includes threads for pressing the columnar workpieces to be processed A rod, an internally threaded sleeve that cooperates with the threaded rod to form a threaded transmission pair, and a gate-shaped bracket with a T-shaped groove joint at the lower end; a V-shaped groove for preventing the rolling of the columnar workpiece to be processed is arranged on the upper side of the base. The upper side of the base is symmetrically provided with T-shaped grooves on both sides of the V-shaped groove. The internally threaded sleeve is fixedly installed, the threaded rod is mounted inside the internally threaded sleeve, and the upper end of the threaded rod is fixedly mounted with a driving handle for driving the threaded rod to rotate.

The above-mentioned combined self-locking clamping device for cylindrical workpieces is characterized in that: the V-shaped groove is arranged in the middle part of the upper side of the base.

The above combined self-locking clamping device for cylindrical workpiece is characterized in that: the lower end of the threaded rod is provided with a flexible pressure head for preventing damage to the outer contour of the cylindrical workpiece to be processed.

The above combined self-locking clamping device for cylindrical workpieces is characterized in that the internal thread sleeve is welded on the upper side of the gate-shaped bracket.

Compared with the prior art, the utility model has the following advantages:

(1) The design of the combined self-locking clamping device for columnar workpieces is very reasonable. The columnar workpieces are clamped by the threaded pair, so the clamping is reliable, the force is large, it can be self-locking and the stroke is not limited.

(2) The combined self-locking clamping device for columnar workpieces adopts a combined design, which is easy to disassemble and assemble, and is easy to carry and transport.

(3) The structure of the combined self-locking clamping device for columnar workpieces is very simple, the operator only needs to rotate the driving handle to clamp or loosen the columnar workpieces, and the operation is very simple.

(4) The combined self-locking clamping device for cylindrical workpieces has no rigid impact during use, so its service life is very long.

(5) The combined self-locking clamping device for cylindrical workpieces is not only suitable for the technical field of mechanical processing, but also suitable for other places where objects with curved surface contours need to be clamped, so its application range is very wide and it is easy to popularize and use.

Below by accompanying drawing and embodiment, the utility model is described in further detail.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is the front view of the base of the utility model.

Fig. 3 is a partial cross-sectional view of the door-shaped bracket of the present invention.

Explanation of reference signs:

1-base; 1-1-V-shaped groove; 1-2-T-shaped groove;

2-door bracket; 2-1-T-slot joint; 3-internal threaded sleeve;

4-threaded rod; 4-1-flexible pressure head; 5-drive handle.

Detailed ways

A combined self-locking clamping device for columnar workpieces as shown in Figures 1-3, includes a base 1 that acts as a fixed support, and also includes a threaded rod 4 for pressing the columnar workpiece to be processed, and the threaded rod 4 Cooperate with the internally threaded sleeve 3 that constitutes the thread transmission pair and the door-shaped bracket 2 with a T-shaped groove joint 2-1 at the lower end; the upper side of the base 1 is provided with a V-shaped groove 1- for preventing the rolling of the cylindrical workpiece to be processed. 1. The upper side of the base 1 is symmetrically provided with T-shaped grooves 1-2 on both sides of the V-shaped groove 1-1, and the T-shaped groove joint 2-1 provided at the lower end of the door-shaped bracket 2 is slidingly fitted on In the T-shaped slot 1-2 of the base 1, the inner threaded sleeve 3 is welded on the upper side of the door-shaped bracket 2, and the inner threaded sleeve 3 is installed with the threaded rod 4 inside, and the threaded rod 4 A driving handle 5 for driving the threaded rod 4 to rotate is fixedly installed on the upper end.

As shown in FIG. 1 and FIG. 2 , the V-shaped groove 1 - 1 is arranged in the middle part of the upper side of the base 1 .

As shown in FIG. 1 , the lower end of the threaded rod 4 is provided with a flexible pressure head 4-1 for preventing damage to the outer contour of the cylindrical workpiece to be processed.

The working process of the combined columnar workpiece self-locking clamping device of the utility model is as follows: as shown in Figure 1, the combined columnar workpiece self-locking clamping device is first placed at the working position, and the operator places the columnar workpiece to be processed on the base In the V-shaped groove 1-1 on the upper side of the middle part, rotate the driving handle 5 clockwise, and the driving handle 5 drives the threaded rod 4 to rotate clockwise, so that the threaded rod 4 moves downward and drives the flexible pressure head 4-1 Compress the cylindrical workpiece to be processed. When the processing is completed, rotate the drive handle 5 counterclockwise, and the drive handle 5 drives the threaded rod 4 to rotate counterclockwise with the internally threaded sleeve 3, so that the threaded rod 4 moves upward and drives the flexible indenter 4-1 away from the processed cylindrical workpiece At this time, the operator can take out the processed cylindrical workpiece.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural transformations made to the above embodiments according to the technical essence of the present utility model still belong to Within the scope of protection of the technical solution of the utility model.

Claims (4)

1. A self-locking clamping device for a combined columnar workpiece, comprising a base (1) for fixed support, characterized in that: it also includes a threaded rod (4) for pressing the columnar workpiece to be processed, and the threaded rod (4) The rod (4) cooperates with the internally threaded sleeve (3) forming the threaded transmission pair and the door-shaped bracket (2) with a T-shaped groove joint (2-1) at the lower end; the upper side of the base (1) is provided with a A V-shaped groove (1-1) for the rolling of the columnar workpiece to be processed. The upper side of the base (1) is located on both sides of the V-shaped groove (1-1) and symmetrically provided with T-shaped grooves (1-2). The T-shaped slot joint (2-1) provided at the lower end of the door-shaped bracket (2) is slidably fitted in the T-shaped slot (1-2) of the base (1), and the upper side of the door-shaped bracket (2) is fixedly installed There is the internally threaded sleeve (3), the inside of the internally threaded sleeve (3) is equipped with the threaded rod (4), and the upper end of the threaded rod (4) is fixedly installed with a screw for driving the threaded rod (4). ) to turn the drive handle (5). 2. The combined self-locking clamping device for cylindrical workpieces according to claim 1, characterized in that: the V-shaped groove (1-1) is arranged in the upper middle part of the base (1). 3. The combined self-locking clamping device for columnar workpieces according to claim 1, characterized in that: the lower end of the threaded rod (4) is provided with a flexible pressure head (4-1) for preventing damage to the outer contour of the columnar workpiece to be processed. ). 4. The combined self-locking clamping device for cylindrical workpieces according to claim 1, characterized in that: the inner threaded sleeve (3) is welded on the upper side of the door-shaped bracket (2).