JPH0138620B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a work clamp device for a machine tool.

[Problems to be solved by conventional technology and invention]

Generally speaking, the latest technology for work clamping devices is
With the trend towards FMS, there is a strong demand for flexibility in work clamps.

[Means for solving problems]

The purpose of the present invention is to satisfy these demands, and the gist of the present invention is to center, position, and clamp a workpiece onto a workpiece mounting portion such as on a machine tool or on a table. A base plate on which the workpiece is placed is formed into a predetermined shape, a large number of vertical fitting holes are formed in the base plate, and communicating horizontal holes communicating with the vertical fitting holes are formed in the base plate in a planar mesh shape and in upper and lower layers. A plurality of connecting pipe members communicating with a communication horizontal hole network of a predetermined layer of the communicating horizontal holes are selectively fitted into a predetermined plurality of fitting vertical holes, and various types of connecting pipes are formed in the connecting pipes. A workpiece clamping device for a machine tool is characterized in that the clamping bodies are arranged in series, and connecting portions are arranged in the communication horizontal hole network of each layer.

[Effect]

Fit a connecting pipe member that communicates with a predetermined communicating horizontal hole network into a predetermined vertical hole according to the specifications of the workpiece,
When a clamp body is connected to the connecting pipe member and pressurized oil or the like is supplied to the connecting portion of the communication horizontal hole network, the predetermined clamp body is activated and clamps the workpiece.

〔Example〕

1 to 5 show a preferred embodiment of the present invention, in which 1 is a base plate, in which 16 inset vertical holes 2 are formed, and the inside communicates with the inset vertical holes 2. The communicating horizontal holes 3 are formed in two layers, upper and lower, in the form of a planar mesh lattice, thereby forming a communicating horizontal hole network 4, in this case an upper communicating horizontal hole network 4a and a lower communicating horizontal hole network 4.
It forms b.

Reference numeral 5 denotes a connecting pipe member that is fitted into the vertical insertion hole 2, and in this case, a connecting pipe member 5a that communicates with the upper communicating horizontal hole network 4a and a connecting pipe member 5a that communicates with the lower continuous horizontal hole network 4b. It consists of a pipe member 5b.

Reference numeral 6 denotes a clamp body, and in this case, when pressure oil is supplied, the rod rotates while pulling, and when the supply of pressure oil is stopped, the rod rotates back while pushing. It consists of a clamp body 6b, which is a clamp cylinder, in which a rod pushes when oil is supplied, and a rod pulls when the supply of pressure oil is stopped.

Reference numeral 7 denotes a connection part of the communication horizontal hole network 4, which in this case consists of a connection part 7a of the upper communication horizontal hole network 4a and a connection part 7b of the lower communication horizontal hole network 4b, which includes a stop valve 8a. , 8b are connected to the stop valves 8a and 8b, and a directional switching valve (not shown) is connected to the stop valves 8a and 8b.
A hydraulic power source is connected via the

Further, numeral 9 is a closing cover for the vertical insertion hole 2, and numeral 10 is a closing plug for the communicating horizontal hole 3.

Further, 11 is a positioning block, 12 is a clamp lever, and 13 is a clamp pad.

Since this embodiment has the above configuration, the positioning block 11 is fixed to the base plate 1 according to the specifications of the workpiece W as shown in FIG. , when a suitable clamp body 6 is connected to the connecting pipe member 5 and a hydraulic power source is connected to the connecting part 7 via a directional switching valve or the like,
In this case, first, the clamp body 6b is operated, and the clamp pad 13 presses the workpiece W against the positioning block 11 to position it, and then the clamp body 6a is operated, and the clamp lever 12 can clamp and fix the workpiece W.

In addition, as another example, after temporary clamping,
It is possible to obtain sequential operations such as actual clamping, and clamp operations suitable for several different types of workpieces W.
Work clamp flexibility can be improved.

Note that the structure of the clamp body 6 is not limited to this embodiment, and for example, a structure employing a hydraulic type collet chuck or a structure employing a double-acting cylinder may also be applied.

〔Effect of the invention〕

As described above, the present invention allows positioning, The clamp can be fixed, and the flexibility of the workpiece clamp can be improved, for example, by making it possible to perform sequential clamping operations or to perform clamping operations for several different types of workpieces.

As described above, the intended purpose can be fully achieved.

[Brief explanation of drawings]

1 is a perspective view of the base plate, FIG. 2 is a plan view thereof, FIG. 3 is an exploded sectional view, FIG. 4 is a partially enlarged sectional view, and FIG. 5 is a plan view of the base plate in use. 1...Base plate, 2...Inset vertical hole, 3...
...Communication horizontal hole, 4, 4a, 4b...Communication horizontal hole network,
5, 5a, 5b... Connection pipe member, 6, 6a, 6b
... Clamp body, 7, 7a, 7b ... Connection part, W
……work.

Claims (1)

[Claims] 1. In a device that clamps and fixes a workpiece by centering and positioning it on a workpiece mounting part of a machine tool, a table top, etc., a base plate on which the workpiece is placed is formed in a predetermined shape, and a large number of A fitted vertical hole is formed, and communicating horizontal holes communicating with the fitted vertical hole are formed in the base plate in a planar mesh shape and in upper and lower layers, and a predetermined number of the communicating horizontal holes is formed in a predetermined plurality of the fitted vertical holes. selectively fitting a plurality of connecting pipe members communicating with the communicating horizontal hole network of the layers, various clamp bodies being connected to the connecting pipes, and connecting portions being arranged in the communicating horizontal hole network of each layer. A workpiece clamping device for a machine tool, characterized in that it is configured as follows.