JPS58163598A - Positioning device of ultra thin sheet work - Google Patents

Abstract

PURPOSE:To manufacture easily a positioning device which has the rugged part of the ultra thin work, by putting a hardener such as cement into a box body, dipping the work therein, and removing the work after curing of the hardener. CONSTITUTION:A box body 1 which is open at the top face is placed on a flat floor, and a material (m) which cures with time such as gypsum or cement is put therein. The ultra thin work W coated with a mold release agent is dipped therein and after the material (m) is allowed to cure thoroughly, the work W is parted whereby a mold M having the rugged part of the same shape as the shape of the work W is formed. The box 1 contg. the mold M is set on a working table 6 by fitting the positioning holes 2a provided to a bottom plate 2 and the positioning pins 6a provided to the table 6. The work W is placed in the mold M by matching the rugged part thereof with the rugged part of the mold M, and the work is subjected to working such as fusion cutting, welding or the like with a robot 5. The work W is worked without deformation.

Description

[Detailed Description of the Invention] The present invention, especially the ultra-thin and flexible press-formed workpiece t.
This invention relates to a positioning device that is effective for accurate positioning.

When processing an ultra-thin plate workpiece like the one mentioned above using a fusing robot or a welding robot automatically, for example, because the workpiece is an ultra-thin plate, it is difficult to cut or weld the workpiece as before! Attempting to fix a workpiece using a lamp device causes problems such as the workpiece being deformed and its position not being accurately determined.

A box body with an open top that can be positioned and held during the work, a material that hardens over time is poured into the box body, and the lower part of the ultra-thin plate workpiece is immersed in the poured material, and after the material hardens, the It consists of a mold formed by removing the workpiece, and the purpose is to enable accurate positioning by simply placing the thin plate workpiece to be processed on the mold by fitting the two parts into convexes and convexes. It is an object of the present invention to provide a positioning device for a thin plate work.

Hereinafter, a detailed description will be given based on the embodiments shown in the drawings.

Reference numeral 1 denotes a box body with an open top, which consists of a rectangular bottom plate 2 and four side plates 4 surrounding the bottom plate from all sides and interconnected with screws 8. In addition, holes 2a for positioning are bored in two places on the bottom surface of the bottom plate 2. The bottom plate 2 is positioned and held by fitting with two positioning pins 6a protruding from the processing table 6.

In order to mold the mold M of the ultra-thin plate work W into the box l, first place the box 1 on a flat floor F, and
An appropriate amount of material m (for example, a hydraulic material such as plaster or cement) that hardens over time is poured into the container (Fig. 1).

Next, when the material m has become a little hard, the workpiece W coated with an appropriate mold release agent on one desired side is immersed in the material m and left to stand (FIG. 2).

Finally, when the material m is completely hardened, the work W
If it is released from the mold M, a positioning device consisting of the box 1, the mold M and the square is completed (FIG. 8).

- Therefore, in order for the industrial robot 5 to perform processing operations such as welding and fusing the workpiece W using the positioning device, first the positioning device is placed on the processing workbench 6 by aligning the holes 2a and the positioning pins. By fitting with 6a, it is accurately positioned and placed.

If it is placed in line with the workpiece wtmM to be machined, it will automatically be accurately positioned due to the concave and convex fitting between the two. Furthermore, the tip of the 5th ground wire 7 led out from the processing workbench 6 is connected to the workpiece W using a clip 7a as appropriate.
do. □-・ Preparations for welding and fusing processing work are completed, and the industrial robot 6 is operated by a control device (not shown), and the processing tool T
This is to perform automatic processing operations such as welding and fusing while maintaining the robot in an optimal posture relative to the workpiece W.

Note: In the above embodiment, if the side plate 4 is considered to be an obstacle to the processing operation, apply an i-type agent to the inner surface of the side plate 4 before pouring the material m, and screw the screw 8 after forming between the J molds. All you have to do is remove it and remove the four side plates 19.

:・> Furthermore, if it is desired to strengthen the adhesion between the bottom plate 2 and the mold M, protrusions or ribs may be provided at appropriate locations on the upper surface of the formed plate 2. Furthermore, since the workpiece W had few irregularities, the depth of the recess was shallow, and simply placing the workpiece W on the mold M would not allow accurate positioning and maintenance, and there was a risk that the workpiece W would shift during the machining operation. If the permanent magnet S is to be embedded in the surface of the mold M as shown in Figs.
After applying a mold release agent to the inner surface of 4, the hydraulic material m is poured into the box lO. Then, a permanent magnet S is attracted to a suitable place on the lower surface of the workpiece W, a mold release agent is applied to the entire surface of the workpiece W except for the permanent magnet S, and the workpiece W and the permanent magnet S are appropriately sunk into the material m. After the material m has hardened, the side plate 14 and the workpiece W are removed, and the permanent magnet 8 remains embedded in the surface of the mold M (Fig. 6). , during actual processing work; 14
If the workpiece W is placed according to the unevenness of M, the permanent magnet S
The Nyoshake W is attracted and stabilized, and it will not shift during machining work (Fig. 7)0
.

In addition, a suitable number of vacuum suction devices using rubber cups, etc., are installed in the appropriate locations of the 11M4", and the workpiece W is held by vacuum force.
You can also have them hold their own.

In addition, in order to ground the Buddha workpiece W in the above-mentioned embodiment,
The ground lI7 is led out from the processing workbench 6 and connected to the workpiece W with the clip 7a, but if the fIM is formed so that a part of the workpiece W comes into contact with the upper edge of the side plate 4 when the workpiece W is positioned in the A7 mold M. The aforementioned ground wire 7 is not necessary, and as an alternative method, the ground A may be embedded in the mold M as shown by the two-dot chain line in FIG.

That is, the ground A is connected to a compression spring A whose lower end is fixed to the conductive bottom plate 2, and a conductor A which is fixed to the upper end of the compression spring.
2. When pouring material m.

The liquid level of the material m may be set below the conductor A2, and the workpiece W may be brought into contact with the i-electric body A2 and pressed against the spring force.

Furthermore, in the above-mentioned embodiment, in the case of a workpiece to be melt-cut, the lower part of the workpiece W to be cut by melting is set at an appropriate distance from the mold M to provide a space for gas blow-through when molding the mold M.

As described in detail above, the positioning device according to the present invention, which consists of a box body and a hole molded inside the box body, can be positioned and placed on a processing workbench, and the workpiece can be placed accurately by aligning it with the unevenness of the stand. Since the machine can be positioned and held, it is highly effective in automatic processing of ultra-thin plate workpieces, such as the body of a passenger car, for example.

[Brief explanation of the drawing]

The figures all show embodiments of the present invention; Fig. 1 is a perspective view of a box, Figs. 2 and 8 are explanatory diagrams of molding, and Fig. 4 is a processing using the positioning device of the present invention. An explanatory diagram showing the working situation, and Figures 5 to 7 are explanatory diagrams showing another embodiment in which permanent magnets are embedded.In Figure 0, 1 is a box body;
2 is a bottom plate, 4 is a side plate, 5 is an industrial robot, 6 is a processing table, m is a material, M is a mold, and W is a workpiece. Applicant's agent Takashi Higashi

Claims (1)

[Scope of Claims] (1) A box with an open top that can be positioned and held on a processing workbench as appropriate, and a material that hardens over time is poured into the box, and the lower part of the ultra-thin workpiece is poured into the poured material. A positioning device for an ultra-thin plate work, comprising a stand formed by soaking the material and removing the ultra-thin plate work after the material has hardened. (2) The positioning device for an ultra-thin plate work according to claim 1, wherein the material is a hydraulic material such as plaster or cement. (8) The positioning device for an ultra-thin plate work according to claim 1, wherein the material is resin. (4) The positioning device for an ultra-thin workpiece according to claim 8111, wherein the box body has a positioning hole or a projection on the bottom surface of the bottom plate. (5) The positioning device for an ultra-thin workpiece according to claim 1, wherein the box body has a side plate that can be disassembled. 2. (6) The apparatus for positioning an ultra-thin workpiece according to claim 1, wherein the box body has a release agent applied to the inner surface except for the bottom plate. ('7) The positioning device for an ultra-thin plate work according to claim jI1, wherein the box body has an appropriate number of protrusions and hole beams protruding from the upper surface of the bottom plate. (8) The positioning device for an ultra-thin plate work according to claim 1, wherein a permanent magnet is embedded in the surface of the mold. (9) The positioning device for an ultra-thin plate work according to claim 1, wherein a conductor that is electrically connected to the bottom is embedded in the surface of the mold.