CN202556081U - Eccentric clamp - Google Patents

Abstract

The utility model discloses an eccentric clamp, which comprises a clamp head and a through hole penetrating through the clamp head, wherein the clamp head is asymmetric in structure, and the through hole deviates from a central shaft of the clamp head. As the clamp head is asymmetric in structure and the through hole deviates from the central shaft of the clamp head, eccentric hole machining process is carried out directly after shape machining of a spare part is completed, continuous feeding and machining is realized, a man-made clamping process is omitted, time and production cost are effectively saved, and spare part machining efficiency in batch production is improved.

Description

Eccentric fixture

technical field

The utility model relates to the technical field of machining, in particular to an eccentric clamp.

Background technique

At present, eccentric processing is a very common processing technology. Usually, when the factory processes the eccentric hole of the fastener, it needs to be processed in two processes. After the shape of the part is processed, the second drilling process is performed on the eccentric hole, and manual clamping is required, and the feeding is troublesome, which makes mass production The processing efficiency is low.

Fixtures are process equipment used in metal processing to accurately determine the position of parts and clamp them firmly to accept processing. The main functions of the fixture include: reliably ensuring the processing quality of the workpiece, improving processing efficiency, reducing labor intensity, and fully exerting and expanding the technological performance of the machine tool. Therefore, fixtures occupy an important position in the field of mechanical manufacturing.

Utility model content

The utility model provides an eccentric clamp capable of realizing continuous feeding processing and simplifying the process.

In order to solve the above-mentioned technical problems, the utility model provides an eccentric clamp, which includes a chuck and a through hole passing through the chuck, the chuck has an asymmetric structure, and the through hole deviates from the central axis of the chuck.

Preferably, the eccentric clamp further includes a first groove and a second groove, the first groove includes a first part set on the base and a second part set on the jacket, the The first part communicates with the second part, and the second groove is opened on the jacket.

Preferably, the chuck includes a base and a jacket connected to the base.

Preferably, the numbers of the first groove and the second groove are four respectively.

Preferably, the material of the eccentric clamp is metal.

Compared with the prior art, since the collet in the utility model has an asymmetric structure and the through hole deviates from the central axis of the collet, the eccentric hole processing process is directly carried out after the part shape processing is completed, realizing continuous feeding processing , saving the manual clamping process, effectively saving time and production costs, and improving the processing efficiency of parts in mass production.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of an eccentric clamp in a specific embodiment of the present invention;

Fig. 2 is a schematic top view of an eccentric clamp in a specific embodiment of the present invention;

Fig. 3 is a cross-sectional view of an eccentric clamp in a specific embodiment of the present invention;

Fig. 4 is a schematic diagram of parts in a specific embodiment of the utility model.

Detailed ways

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Please refer to Figures 1 to 3. The utility model provides an eccentric clamp. The eccentric clamp includes a chuck 1 and a through hole 2 passing through the chuck 1. The chuck 1 is an asymmetric structure. The through hole 2 is offset from the central axis of the chuck 1.

Wherein, the collet 1 includes a base 11 and a jacket 12 connected to the base 11. In this embodiment, the base 11 and the jacket 12 are integrally formed to facilitate processing.

In addition, the eccentric clamp also includes a first groove 3 and a second groove 4, the first groove 3 includes a first part set on the base 11 and a second part set on the jacket 2, the first groove The first part of the groove 3 communicates with the second part; the second groove 4 is opened in the jacket 2 .

In this embodiment, the number of the first groove 3 and the number of the second groove 4 are four respectively, and the number of grooves in actual production is determined by specific process conditions, which is not limited by the present invention.

During specific implementation, the collet 1 of the eccentric clamp is fixed on the machine tool, and the part 5 to be processed, as shown in Figure 4, is fixed in the through hole 2 of the eccentric clamp, due to the gap between the first groove 3 and the second groove 4 Existence provides tension for the eccentric clamp so that the part 5 to be machined in the through hole is fixed. The size of the eccentric structure of the eccentric fixture changes with the change of the processed parts, but the distance between the through hole 2 and the central axis of the chuck 1 is usually within 2.54cm.

Since the collet in the utility model has an asymmetric structure, and the through hole deviates from the central axis of the collet, the eccentric hole processing process is directly carried out after the part shape processing is completed, realizing continuous feeding processing and saving artificial clamping process, effectively saving time and production costs.

In addition, the eccentric fixture of the present utility model is made of metal, and has the characteristics of small size, light weight, simple structure, and convenient use; and, parts similar to those in the embodiment of the present utility model can pass through the eccentric fixture of the present utility model or its The variant realizes continuous processing, which can greatly save the processing time of batch products

Apparently, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalent technologies, the utility model is also intended to include these modifications and variations.

Claims (5)

1. An eccentric clamp, characterized in that it comprises a collet and a through hole passing through the collet, the collet has an asymmetric structure, and the through hole deviates from the central axis of the collet. 2. The eccentric clamp according to claim 1, wherein the chuck comprises a base and a jacket connected to the base. 3. The eccentric clamp according to claim 2, further comprising a first groove and a second groove, the first groove includes a first part opened on the base and a first part opened on the jacket The second part on the top, the first part communicates with the second part, and the second groove is opened on the jacket. 4. The eccentric clamp according to claim 1, wherein the number of the first groove and the number of the second groove is four respectively. 5. The eccentric clamp according to claim 1, wherein the material of the eccentric clamp is metal.

Images