CN219853379U - High efficiency centre gripping frock - Google Patents

Abstract

The utility model discloses a high-efficiency clamping tool, relates to the technical field of tools, and aims to solve the problem of low clamping efficiency of the existing tool. The utility model comprises a foundation plate, a plurality of pressing plates and bolts, wherein the bolts penetrate through the pressing plates and are in threaded connection with the foundation plate, the pressing plates are round, the foundation plate is provided with a plurality of mounting grooves for placing workpieces, and each pressing plate corresponds to at least three mounting grooves.

Description

High efficiency centre gripping frock

Technical Field

The utility model relates to the technical field of tools, in particular to a high-efficiency clamping tool.

Background

The existing milling clamping tool is usually provided with a pressing plate, a vice, a chuck and the like. In order to realize batch processing on a numerically controlled milling machine with improved processing efficiency, a vice and a chuck are not suitable, and a pressing plate is generally used for pressing a workpiece. Currently, the press plate is typically only capable of pressing two workpieces, i.e., bolts on the press plate are disposed between the two workpieces. The clamping efficiency reaches the bottleneck, if the clamping efficiency is further improved, the clamping times are reduced, the operation time is shortened, and finally the processing efficiency is improved. In addition, in the case of a numerical control machine or fine machining, the position of the workpiece needs to be accurately determined, which limits improvement of clamping efficiency.

Disclosure of Invention

The utility model provides a high-efficiency clamping tool which comprises a base plate, a plurality of pressing plates and bolts, wherein the bolts penetrate through the pressing plates and are in threaded connection with the base plate, the pressing plates are circular, the base plate is provided with a plurality of mounting grooves for placing workpieces, and each pressing plate corresponds to at least three mounting grooves.

The utility model is further provided with: the mounting grooves corresponding to the pressing plate are distributed at equal angles around the central axis of the pressing plate.

The utility model is further provided with: the lower surface of the pressing plate is provided with a concave table.

The utility model is further provided with: the mounting groove is consistent with the contour of the workpiece.

The beneficial effects of the utility model are as follows:

according to the scheme, on one hand, the clamping number of the pressing plates can be increased, so that the clamping times can be reduced, and the efficiency can be improved; on the other hand, the installation groove can be used for rapidly determining the position and providing constraint, and clamping is used for carrying out.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the platen in the present utility model.

Reference numerals: 1. a base plate; 11. a mounting groove; 2. a pressing plate; 21. a concave table; 3. a bolt; 4. a workpiece.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

Referring to fig. 1-2, the utility model provides a high-efficiency clamping tool, which comprises a base plate 1, wherein a plurality of pressing plates 2 are arranged above the base plate 1. The pressing plate 2 is circular. Bolts 3 extend vertically through the pressure plate 2 and are screwed to the base plate 1. The pressing plate 2 is used to press the work 4 placed on the base plate 1.

On the upper surface of the base plate 1, three mounting grooves 11 are provided corresponding to each of the pressing plates 2, the mounting grooves 11 being for placing the work 4 in conformity with the contour of the work 4, thereby providing restraint in the horizontal plane to the work 4. The mounting grooves 11 are distributed around the central axis of the pressing plate 2 at equal angles, and the number of the mounting grooves 11 can be adjusted according to actual requirements. Particularly emphasized is: the adjustment of the structure of the platen 2 is not conventional. Enabling the press plate 2 to press at least three workpieces 4, a number of alternatives compared to the prior art. Because the need for processing efficiency is solved, there is no easy motivation to improve the number of clamps and the number of clamps on the pressing plate 2, and in addition, the long rectangular pressing plate 2 in the prior art does have the bottleneck of limiting the number of clamps, while the circular pressing plate 2 can effectively improve the number of clamps.

A circular concave stage 21 is provided in the middle of the lower surface of the platen 2. The recess 21 serves on the one hand to reduce the weight and on the other hand to reduce the contact area with the workpiece 4. Because the larger the contact area, the less likely it is to ensure form and position tolerances, i.e. flatness. If the flatness does not reach the standard, some workpieces 4 are pressed tightly, other workpieces 4 are pressed loose, but in order to ensure the stability of each workpiece 4, the bolts 3 need to be screwed in a transition way, which is a common problem in the prior art, but on the one hand, the disassembly is inconvenient, on the other hand, the threads are easy to damage, and on the other hand, if the hardness of the workpieces 4 is relatively low, for example, the workpieces 4 are processed with aluminum alloy, indentation is easy to be caused on the surfaces of the workpieces 4. In this scheme, firstly, the constraint in the horizontal plane is provided by the mounting groove 11, so that the pressing plate 2 is not required to excessively press down to generate enough friction force, so that the pressing plate 2 only needs to press the workpiece 4 to avoid loosening in the vertical direction, and secondly, the lower surface of the pressing plate 2 can easily apply balanced downward force to each workpiece 4, so that excessive screwing of the bolts 3 is not required. In summary, the bolt 3 is only required to be in a normal pretightening force range, namely, the bolt is disassembled and assembled in aspects, and the threads are not easy to damage.

In summary, the clamping number of the pressing plates 2 can be increased, so that the clamping times can be reduced, and the efficiency can be improved; on the other hand, the mounting groove 11 can be used for quickly determining the position and providing constraint, and clamping is used for developing.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

In the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (4)

1. The utility model provides a high efficiency centre gripping frock, includes foundation plate (1), a plurality of clamp plate (2) and bolt (3), bolt (3) run through clamp plate (2) and with foundation plate (1) threaded connection, its characterized in that: the pressing plates (2) are round, a plurality of mounting grooves (11) for placing the workpieces (4) are formed in the base plate (1), and each pressing plate (2) corresponds to at least three mounting grooves (11).

2. The high efficiency clamping tool of claim 1, wherein: the mounting grooves (11) corresponding to the pressing plate (2) are distributed at equal angles around the central axis of the pressing plate (2).

3. The high efficiency clamping tool of claim 1, wherein: the lower surface of the pressing plate (2) is provided with a concave table (21).

4. The high efficiency clamping tool of claim 1, wherein: the mounting groove (11) is in accordance with the contour of the workpiece (4).