CN210849024U - Fastening and automatic centering device - Google Patents

Abstract

The utility model provides a fastening and automatic centering device, it includes plane workstation and fixed mounting's anchor clamps, make with the form of bearing frame, have the chuck, the thrust disc, the fine setting rotation axis, the fine setting handle, the coarse adjustment handle, have the fine setting rotation axis, be furnished with the support, the support is made by the sheet metal bending, have the incision that is used for fixed bearing frame, the bearing frame passes through the support and sets up the both ends at plane workstation, be provided with the ball structure in the bearing frame, be used for producing the clamp force, two bearing frames all are provided with the handle near outside one end, the handle produces the axial clamp force to the thrust disc through the ball structure on the bearing frame, the thrust disc front end is provided with the chuck, realize the.

Description

Fastening and automatic centering device

Technical Field

The utility model relates to a welding process field, concretely relates to fastening and automatic centering device.

Background

Many products in petrochemical industry, electric power industry and the like relate to butt welding of equal-diameter pipes, and the straightness, coaxiality and welding quality of the butt pipes directly influence the overall quality of the products and are related to whether the products can normally operate. The conventional assembly method: the assembly workers perform positioning and tack welding according to visual measurement, the straightness and the coaxiality of the butt joint pipe are difficult to guarantee, welding deformation exists after welding, the product quality is difficult to guarantee, quality problems are easy to occur after the product is put into operation, and shutdown or quality accidents are caused.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model aims at providing a fastening and automatic centering device, the utility model discloses a realize like this: the utility model provides a fastening and automatic centering device, anchor clamps including plane workstation 1 and fixed mounting, make with the form of bearing frame 2, have chuck 3, thrust disc 4, fine setting rotation axis 5, fine setting handle 6, coarse adjusting handle 7, have fine setting rotation axis 5, be furnished with support 8, support 8 is made by the bending of sheet metal, have the incision that is used for fixed bearing frame 2, bearing frame 2 sets up the both ends at plane workstation through support 8, be provided with the ball structure in the bearing frame, a clamping force for producing, the one end of two bearing frames near the outside all is provided with the handle, the handle passes through the ball structure on the bearing frame and produces the axial clamping force to thrust disc 4, thrust disc front end is provided with chuck 3, realize the tight operation of clamp to the work piece through chuck 3.

Preferably: it is characterized in that one handle is a coarse adjustment handle, and the other handle is a fine adjustment handle

Preferably: the chuck is provided with an arc-shaped clamping opening coupled with a workpiece to be processed.

The utility model has the advantages of simple structure and reasonable design, be convenient for operation, the degree of accuracy is high, guarantee equipment precision, pipe interval, welding quality, improves work efficiency, promotes the whole quality of product, reduces the operation hidden danger.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic diagram of the operation of a ball screw in a bearing housing

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

a device for fastening and automatic centering, comprising a flat table 1 and a fixedly mounted clamp, made in the form of a bearing block 2, with a chuck 3, a thrust disc 4, a fine rotation axis 5, a fine adjustment handle 6, a coarse adjustment handle 7, with a fine rotation axis 5, equipped with a support 8, the support 8 being made by bending a thin plate, with a cut-out for fixing the bearing block 2, is shown in figures 1 and 2. Firstly, the centering device is placed at a preset working position, then a workpiece to be positioned is placed between the two chucks 3, the workpiece is quickly subjected to a pre-clamping process by rotating the coarse adjustment handle, and then the position of the workpiece is finely adjusted by rotating the fine adjustment handle 6, so that the workpiece to be machined (such as a pipeline to be welded) can be completely aligned. After the positioning is finished, the subsequent processing process is carried out.

The constructive implementation of this non-standard pipe segment fastening and welding automation device allows to fix in the centering device after two pipe segments have been stuck at three points along the perimeter and to use a uniform weld along the whole perimeter while rotating, thus improving its performance.

The fastening and centering device provides effective assurance for subsequent part operations, such as advantageous conditions for subsequent welding operations. The operation of the fastening and self-centering device, including in any condition both in the shop and outside the shop, allows to obtain a prefabricated welded structure of non-standard pipe sections quickly and efficiently.

Effective technical effects

The installation and automatic centering device has the advantages of simple design, less element quantity, strong adaptability, capability of positioning and centering workpieces with different pipe diameters, no need of special workshop area, and capability of being used in any place in a workshop or under field conditions.

Although the description given above and in the description contains many specifics, these should not be construed as limiting the scope of the invention but merely as providing examples and illustrations of some of the embodiments of the invention which illustrate and do not limit the length of the conveyor belt. The scope of the invention should, therefore, be determined by the appended claims and their legal equivalents, rather than by the examples given in the specification.

Claims (3)

1. A fastening and automatic centering device comprises a plane workbench (1) and a fixedly arranged clamp, is made in the form of a bearing seat (2) and is provided with a clamping head (3), a thrust disc (4), a fine adjustment rotating shaft (5), a fine adjustment handle (6), a coarse adjustment handle (7) and a fine adjustment rotating shaft (5), and is provided with a bracket (8), the bracket (8) is made by bending a thin plate and is provided with a notch for fixing the bearing seat (2), the bearing seat (2) is arranged at the two ends of a plane workbench through the bracket (8), a ball screw structure is arranged in the bearing seat, the clamping device is used for generating clamping force, handles are arranged at one ends, close to the outer sides, of the two bearing seats, the handles generate axial clamping force for the thrust disc (4) through ball screw structures on the bearing seats, the front end of the thrust disc is provided with the clamping head (3), and clamping operation on a workpiece is achieved through the clamping head (3).

2. A fastening and self-centering device, as claimed in claim 1, wherein: one handle is a rough adjusting handle, and the other handle is a fine adjusting handle.

3. A fastening and automatic centering device, as claimed in claim 1, wherein said collet has a circular arc shaped gripping mouth for coupling with the workpiece to be machined.

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