JPH0533986U - Positioning device for magnetic thin plate work - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the magnetic force of the permanent magnet 12 in the positioning device 3 for the magnetic thin plate workpieces 9 and 11 from being reduced and from being damaged. [Structure] The support member 10 has a positioning body 7 formed in a shape corresponding to the inner surface side shape of the first work 9. First
The permanent magnet 12 is embedded in the positioning body 7 corresponding to the joining position of the second work 11 welded to the work 9. The upper surface side of the permanent magnet 12 facing the first work 9 is covered with a Teflon (registered trademark) layer 13.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a magnetic thin plate work positioning device for positioning and supporting a magnetic thin plate work.

[0002]

[Prior Art]

 As a positioning device for positioning workpieces when magnetically processing thin plates such as fusing and welding automatically by a machining robot, a support member with a shape corresponding to the uneven shape of the workpieces on the workbench side. There is a structure in which a permanent magnet is embedded in the surface of the mold on which the work is placed, and the work is fitted and placed on the mold for positioning, and the work is magnetized by the permanent magnet. The magnetic sticking force effectively prevented the displacement of the workpiece during machining. For example, it is as disclosed in JP-A-58-163598.

[0003]

[Problems to be solved by the device]

 However, according to the above-mentioned conventional structure, since the permanent magnet is embedded in the surface exposed state, there is a drawback that it is easily affected by heat from the work side at the time of processing, and the magnetic effect is reduced due to the heat effect. In addition, there is a risk that the permanent magnet may be damaged by the impact force when the work pieces are transferred.

In view of the above problems, the present invention provides a magnetic thin plate workpiece positioning device that reduces the thermal influence from the workpiece side on the permanent magnet embedded in the support member that supports the workpiece and cushions the impact force. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 A technical means for achieving the above object is to provide a magnetic thin plate work positioning device in which a permanent magnet for magnetizing a work is embedded in a support member for positioning and supporting the work, at least a side of the permanent magnet facing the work. The surface of the is covered with heat insulating material.

Further, a magnetic thin plate work positioning device for positioning and joining a second work to a first work, which is positioned and supported by a support member in which a permanent magnet for magnetizing a work is embedded, is automatically welded. The permanent magnet is arranged corresponding to the second work joining position, and at least the surface of the permanent magnet facing the first work is covered with a heat insulating material.

[0007]

[Action]

 According to the present invention, since the surface of the permanent magnet embedded in the support member facing the work is covered with a heat insulating material, the work and the permanent magnet do not come into direct contact with each other, and the work side in the machining The heat effect from is reduced.

Further, when the work is attached to or detached from the support member, the work and the permanent magnet do not directly collide with each other, and the impact force on the permanent magnet is buffered by the heat insulating material.

Further, when the second work is positioned and joined to the first work for automatic welding, the permanent magnet is arranged corresponding to the second work joining position, so that the second work is also placed on the first work side. It can be magnetically satisfactorily adhered and can effectively prevent displacement during welding. In addition, the second work is magnetically adhered to a predetermined position of the first work, and there is no obstacle (for example, a work clamp mechanism) on the welding work side of the first work and the second work, and workability is improved. Good.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is a laser welding robot, 2 is a workbench thereof, and a positioning device 3 is mounted on the workbench 2.

The positioning device 3 has a mounting base 5 made of chevron steel, a plurality of pillars 6 made of chevron steel, etc., provided so as to project upward from the mounting base 5, and an upper end of each strut 6 respectively. The mounting base 5 is detachably attached and fixed to the workbench 2 by bolts 8 or the like. Each positioning body 7 positions and supports the first work 9 as a magnetic thin plate work formed by forming a magnetic thin plate such as a sheet metal material, and at each position, the inner surface side shape of the first work 9 is formed. It is molded into a shape that matches with. A support member 10 for supporting the first work 9 is constituted by the mounting base 5, the support 6, and the positioning body 7. The numbers of the support columns 6 and the positioning bodies 7 may be appropriately determined according to the size and shape of the first work 9.

Like the first work 9, the second work 11 is formed by forming a magnetic thin plate, and is a work that is automatically welded to a predetermined position on the upper surface side of the first work 9 by the laser welding robot 1. ..

The permanent magnet 12 is embedded in the positioning body 7 corresponding to the welding position of the second work 11, that is, the joining position, and the surface of the permanent magnet 12 on the side facing the first work 9, that is, The upper surface side is treated with Teflon, and is covered with a Teflon layer 13 as a heat insulating material.

The embodiment of the present invention is configured as described above, and when the first work 9 is placed on the positioning device 3, the shape of each positioning body 7 and the shape of the inner surface side of the first work 9 are changed. Is stabilized at the combined position and is magnetically attached to the positioning body 7 side by the magnetic force of the permanent magnet 12, where the first work 9 is positioned and supported at a predetermined position on the positioning device 3. Next, if the second work 11 is positioned and joined to the first work 9 at a predetermined position, it is magnetically attached to the first work 9 side by the magnetic force of the permanent magnet 12 as in the first work 9. Then, in this supporting state, the laser welding robot 1 is driven to automatically weld the first work 9 and the second work 11.

As described above, since the surface of the permanent magnet 12 embedded in the positioning body 7 on the side facing the first work 9 is covered with the Teflon layer 13, the first work 9 and the permanent magnet 1 2 Does not come into direct contact with each other, and heat transfer from the first work 9 side during automatic welding is reduced due to the heat insulation effect of the Teflon layer 13, where the thermal effect on the permanent magnet 12 can be reduced and the permanent magnet 12 can be reduced. The decrease in magnetic force can be effectively prevented. Therefore, the fixing and holding function by the magnetic force of the first work 9 and the second work 11 can be exhibited well.

Further, since the thermal effect on the permanent magnet 12 can be reduced, the permanent magnet 12 can be arranged on the positioning body 7 with respect to the joining position of the second work 11, and the good magnetic attraction force can be applied to the second work 11 as well. Can be exhibited, and the position shift of the second work 11 can be prevented.

Further, on the welding work side of the first work 9 and the second work 11, there are no obstacles such as a work clamp mechanism and a screw mechanism for fixing and holding the first work 9 and the second work 11. In addition, the welding position teaching work of the laser welding robot 1 is facilitated, and at the time of the welding work, the idle running time for avoiding obstacles can be shortened and the workability can be improved.

Further, when the works 9 and 11 are attached to and detached from the support member 10, the works 9 and 11 do not directly collide with the permanent magnet 12, and the impact force acting on the permanent magnet 12 by the Teflon layer 13 is generated. It is buffered, and the permanent magnet 12 can be effectively prevented from being damaged.

Further, the attachment and holding of the first work 9 and the second work 11 to the support member 10 is a system in which they are held at predetermined positions by the magnetic attraction force of the permanent magnets 12, and the work of attaching and detaching the works 9 and 11 can be performed with one touch. This can be done and the working time can be shortened, and the work of attaching / detaching the works 9 and 11 to / from the positioning device 3 can be easily automated.

Further, since the upper surface side of the permanent magnet 12 is covered with the Teflon layer 13 and the other surface is covered with the positioning body 7, spatter etc. during welding are magnetically adhered to the surface of the Teflon layer 13. There is also an advantage that even if it adheres, it can be easily removed.

Although the structure in which the Teflon layer 13 is formed as the heat insulating material is shown, the structure may be covered with a material having a good heat insulating property such as Teflon tape, glass cloth, phenol resin, and asbestos. .. Further, although the structure in which only the upper surface side of the permanent magnet 12 is covered with the Teflon layer 13 is shown, the whole structure may be covered with a heat insulating material such as the Teflon layer 13. Furthermore, in the above embodiment, the positioning device 3 is used for welding work, but it may be used for fusing work and the like.

[0022]

[Effect of the device]

 As described above, according to the magnetic thin plate work positioning apparatus of the present invention, at least the surface of the permanent magnet embedded in the support member facing the work is covered with the heat insulating material, so that the permanent magnet and the work are not separated from each other. Direct contact and collision can be avoided, the thermal effect on the permanent magnet can be reduced, the impact force can be buffered, and the decrease in the magnetic force of the permanent magnet and damage can be effectively prevented.

In the case where the second work is positioned and joined to the first work for automatic welding, since the permanent magnet is arranged corresponding to the second work joining position, the second work is also performed. It is possible to magnetically adhere to one work side effectively, and it is possible to effectively prevent misalignment during welding, and there is no obstacle on the welding work side between the first work and the second work, which improves workability.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

[Explanation of symbols]

 1 Laser Welding Robot 3 Positioning Device 5 Mounting Base 6 Support 7 Positioner 9 First Work 10 Supporting Member 11 Second Work 12 Permanent Magnet 13 Teflon Layer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kiyoshi Takeuchi Kiyoshi Takeuchi 6-107 Takino-cho, Nishinomiya-shi, Hyogo Shinmeiwa Industry Co., Ltd. Development Technology Headquarters (72) Shigeki Fujinaga 6 Takino-cho, Nishinomiya-shi, Hyogo Prefecture No. 107 Shin-Maywa Industrial Co., Ltd. Development Technology Headquarters (72) Inventor Masakazu Kobayashi 6-107 Takino-cho, Nishinomiya-shi, Hyogo Shin-Maywa Industrial Co., Ltd. Development Technology Headquarters

Claims (2)

[Scope of utility model registration request] 1. A magnetic thin plate workpiece positioning device in which a permanent magnet for magnetizing a workpiece is embedded in a support member for positioning and supporting the workpiece, wherein at least the surface of the permanent magnet facing the workpiece is a heat insulating material. A magnetic thin plate work positioning device characterized by being covered. 2. A magnetic thin plate workpiece positioning device for positioning and joining a second workpiece to a first workpiece, which is positioned and supported by a supporting member in which a permanent magnet for magnetizing a workpiece is embedded, and automatically welding the workpiece. A positioning device for a magnetic thin plate work, wherein the permanent magnet is arranged corresponding to a second work joining position, and at least a surface of the permanent magnet facing the first work is covered with a heat insulating material. .