JPH04256582A - Positioning device for work - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece positioning device for performing secondary processing such as drilling or cutting in a washing area or bathtub.

0002

[Prior Art] Conventionally, as a workpiece positioning device,
There is one disclosed in Japanese Patent Laid-Open No. 63-90386. This is shown in Figure 3,
A columnar rising portion (22) having an L-shape in plan view is provided at one corner of the processing machine table (21), and the table (21)
A required number of fitting recesses (23) are provided at predetermined positions on the upper surface, and a sword-shaped jig (24) is attached to the fitting recesses (23) selected as appropriate according to the size and form of the workpiece. The workpiece was positioned by fitting the bottom of the

0003

[Problems to be Solved by the Invention] The conventional workpiece positioning device described above requires a plurality of fitting recesses in the processing machine table, and the position where the sword-shaped jig can be fixed to the table is one of the fitting recesses. Since it is limited to the areas where it exists, it is inconvenient that it cannot handle different types of workpieces whose dimensions differ by just a few millimeters. In addition, since the jig is built into the processing machine table itself, when changing types, it is inevitably impossible to replace the jig while the previous type of workpiece is being processed. The jig cannot be replaced until later, which is inefficient in terms of assembly line work.

An object of the present invention is to be able to perform positioning corresponding to each type of workpiece when machining various types of workpieces with different dimensions in random order, and to be able to perform positioning corresponding to each type of workpiece, and when changing types, the previous type It is an object of the present invention to provide a workpiece positioning device having a simple structure that allows a jig to be replaced during processing of a workpiece.

[0005]

[Means for Solving the Problems] In order to achieve the above object, a workpiece positioning device according to the present invention has a flat plate for attaching a jig made of a magnetic material with a smooth upper surface, and a detachable switch having an outwardly protruding switch. It consists of the required number of Kenzan-shaped jigs equipped with flexible permanent magnets at the bottom.

[0006] Further, in the above-mentioned workpiece positioning device, an L-shaped rising portion in a plan view is provided at one corner of two orthogonal sides, and opposing surfaces of the rising portions on each of the other two orthogonal sides are provided. It is recommended to combine a processing machine table for fixing a flat plate with a clamp with the tip facing toward the top.

[0007]

[Operation] The workpiece positioning device according to the present invention includes a flat plate for mounting a jig made of a magnetic material with a smooth upper surface, and a required number of tsurugi-shaped jigs equipped with a removable permanent magnet having an outwardly protruding switch at the bottom. Since it consists of a tool, the permanent magnet is "off" on the top surface of the flat plate depending on the type of workpiece.
After placing the tsurugisan-shaped jigs in the state of , one by one, switch the permanent magnet of the tsurugisan-shaped jigs to "wear" (on).
Make it. Then, all the sword-shaped jigs are suctioned and fixed onto the flat plate at predetermined positions that match the type of workpiece.

Further, the processing machine table for fixing a flat plate is provided with an L-shaped rising part in a plan view at one corner of two orthogonal sides, and the relative positions of the rising parts on each of the other two orthogonal sides are provided. Since there is a clamp with the tip facing the surface to be held, place the rectangular flat plate on which the required number of tsurugazine-shaped jigs are fixed as described above on the table, and then
After applying the two corners to the inner surface of the rising part, press the flat plate with a clamp to fix the flat plate to the table. As a result, the workpiece is positioned indirectly with respect to the processing tool via the table.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described with reference to the drawings.

The workpiece positioning device shown in FIG.
and a requisite number of sword-shaped jigs (4), (5), and (6) each having a removable rectangular permanent magnet (3) with an outwardly protruding lever switch (2) at the bottom; An L-shaped rising part (
7), and a processing machine table (9) for fixing a flat plate, which is provided with clamps (8) with the tips facing toward the opposite surfaces of the rising portion (7) on each of the other two orthogonal sides. We are prepared.

In this embodiment, the workpiece (W) is a bathtub with a washing area. The flat plate (1) is made of an iron plate thick enough to withstand the attraction strength of the magnet, and a square pipe (10) is welded to the periphery of the lower surface and at required parts, which allows the upper surface of the flat plate (1) to be accurately aligned. Rigidity is given so that it becomes a standard reference surface. Required number of Tsurugi-shaped jigs (4) (5) (
6) When the workpiece (W), a bathtub with a washing area, is turned upside down, different heights and shapes are prepared for the inner wall, but the permanent magnet (3) at the bottom holds this part. All have the same shape and dimensions so that they can be grasped by a robot, and the switch (2)
The robot can switch between "taking off" (off) and "wearing" (on). Therefore, the predetermined positioning and fixing of the sword-shaped jigs (4), (5), and (6) to the flat plate (1) are automatically performed by the robot.

[0012] Fig. 2 shows tsurugi-shaped jigs (4), (5), and (6) suctioned and fixed in predetermined positions on a processing machine table (9).
While processing the workpiece (W1) on the flat plate (1A), a workpiece (W2) of a different type from this workpiece (W1) is being processed.
) on another flat plate (1B).
)(5)(6) are arranged and the workpiece (W2) is positioned. In this way, immediately after machining the previous type of workpiece (W1), the next type of workpiece (W2) can be machined.

As shown in FIG. 1 by a dashed line, a flat plate (1)
If an enclosure (11) is provided around the periphery of the flat plate (
1) When moving the machine to the outside of the table (9), the cutting waste can be discharged to the outside of the processing machine at the same time.

[0014]

[Effects of the Invention] According to the workpiece positioning device of the present invention, a required number of sword-shaped jigs can be arbitrarily adsorbed and fixed on a flat plate by the permanent magnet at the bottom at predetermined positions that match the type of workpiece. When machining many types of workpieces with different dimensions in random order, it is possible to handle each type of workpiece, and the structure itself is extremely simple.

[0015] Furthermore, since the flat plate with the kenzan-shaped jig placed at a predetermined position corresponding to the type of workpiece can be removably fixed to the processing machine table, when the type of workpiece is changed, the next type of workpiece can be changed. The work of arranging the kenzan-shaped jig suitable for one type of workpiece can be done on a separate flat plate while the previous type of workpiece is being processed, and assembly work can be carried out efficiently.

[Brief explanation of the drawing]

1 is a perspective view of a device according to the invention, FIG.

FIG. 2 is a perspective view showing a state in which, when the type of workpiece is changed, a kenzan-shaped jig corresponding to the next type of workpiece is placed and attached to another flat plate while the previous type of workpiece is being processed; .

FIG. 3 is a perspective view of a conventional example.

[Explanation of symbols]

1 Flat plate for mounting magnetic jig 2 Lever switch 3 Permanent magnet 4, 5, 6 Kenzan-shaped jig 7 Rising part 8 Clamp 9 Processing machine table for fixing flat plate

Claims (2)

[Claims] [Claim 1] A required number of tsurugi-shaped jigs, each of which has a flat plate (1) for attaching a jig made of a magnetic material with a smooth upper surface, and a detachable permanent magnet having an outwardly protruding switch (2) at the bottom. A workpiece positioning device consisting of Claim 2: A required number of tsurugi-shaped jigs, each of which has a rectangular flat plate (1) for mounting a jig made of a magnetic material with a smooth top surface, and a removable permanent magnet (3) having an outwardly protruding switch at the bottom. An L-shaped rising part (7) in a plan view is provided at one corner of the tools (4), (5), and (6), and the other two orthogonal sides. (7)
A workpiece positioning device consisting of a processing machine table (9) for fixing a flat plate, which is provided with a clamp (8) with its tip facing toward the opposing surface of the workpiece.