JPH0565487U - Electron beam welder - Google Patents

Abstract

(57) [Summary] [Object] In an electron gun moving device of an electron beam welding machine that moves an electron generating part, an O-ring plate for vacuum sealing attached to the lower surface of the electron gun moving device can be easily installed from the inside of the welding chamber. Make it removable. [Structure] An O-ring plate 6 is provided with an outer O-ring 4 and an inner O-ring 5, and the sputter cover 10 is removed to remove the O-ring.
The O-ring plate 6 can be taken out from the welding chamber window 12 by removing the mounting bolt of the ring plate 6 to the welding chamber 11. [Effect] The O-ring can be replaced without lifting the electron generator 1, the exhaust device 2, and the electron gun moving device 3, and the positioning work time at the time of restoration can be shortened.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electron beam welding machine.

[0002]

[Prior Art]

 Conventionally, in this type of electronic bead welder, in which the electron gun moving device was installed on the side of the welding chamber, the O-ring was replaced inside the welding chamber because the movement amount was 50 mm or less. ..

In a welding machine having a movement amount of 50 mm to 100 mm, the electron gun moving device provided on the upper surface of the welding chamber is one in which the electron gun moving device is jacked up with four screws and the O-ring plate is used. I was removing it and replacing the O-ring.

[0004]

[Problems to be solved by the device]

 However, in these conventional methods, since the total weight of the electron gun moving device, the electron generating part, and the exhaust device attached to the electron generating part exceeds 300 kg, instability during jacking up and positioning work during restoration are performed. There was a problem that it takes a lot of time and labor to do so.

The present invention has been made in view of the above-mentioned conventional circumstances, and therefore, an object of the present invention is to provide a novel electronic beam welding machine capable of solving the above problems inherent in the conventional technology. To provide.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the electron beam welding machine according to the present invention is designed so that the O-ring plate can be attached to and detached from the inside of the welding chamber, and that the O-ring can be exchanged by taking it out of the welding chamber window. The O-rings of the book are spaced closely to form a small O-ring plate, and the weight is reduced to 3 kg.

To introduce the lubricating grease between the two O-rings, the fixing O-ring was inserted and sealed so that the grease did not leak from the contact surface.

[0008]

【Example】

 A preferred embodiment of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a sectional view of an embodiment of the present invention. FIG. 2 is a plan view of the main part.

With reference to FIGS. 1 and 2, an exhaust device 2 is provided in the electron generator 1, and these elements are fixed to an electron gun moving device 3. The electron gun moving device 3 and the welding chamber 11 are guided by a linear guide and vacuum-sealed by the inner O-ring 5.

The O-ring plate 6 provided with the inner O-ring 5 and the outer O-ring 6 is fixed to the welding chamber 11 by being sealed with a fixed O-ring. The electron beam 8 moves 100 mm as a moving amount 9.

As the lubrication of the O-ring, grease is injected into the grease outlet 17 from the grease introduction port 16 through the grease introduction plate (A) 13 and the grease introduction plate (B) 14, and the inner O-ring 5 and the outer O-ring 5 are connected. It is filled between the rings 4 and lubricated.

The O-ring plate 6 can be taken out from the welding chamber window 12 by removing the spatter cover 10 and removing the mounting bolts to the welding chamber 11. Then, the outer O-ring 4 and the inner O-ring 5 provided on the O-ring plate 6 taken out can be replaced.

[0014]

As described above, according to the present invention, since the O-ring plate can be attached to and detached from the inside of the welding chamber, the O-ring can be easily replaced, and the welding chamber and the electron gun moving device can be easily replaced. The effect that the accuracy of is maintained is obtained.

[Brief description of drawings]

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

FIG. 2 is a plan view of an essential part showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electron generation part 2 ... Exhaust device 3 ... Electron gun moving device 4 ... Outer O-ring 5 ... Inner O-ring 6 ... O-ring plate 7 ... Fixed O-ring 8 ... Electron beam 9 ... Movement amount 10 ... Sputter cover 11 ... Welding Chamber 12 ... Welding chamber windows 13, 14 ... Grease introduction plate 15 ... Sealing O-ring 16 ... Grease introduction port 17 ... Grease outlet

Claims (3)

[Scope of utility model registration request] 1. In an electron gun moving device of an electron beam welding machine for moving an electron generating part in an upper part of a welding chamber, an O-ring plate for vacuum sealing attached to a lower surface of the electron gun moving device is attached / detached to / from the welding chamber. The electron beam welding machine is characterized in that the O-ring plate is taken out from the welding chamber window and the O-ring can be exchanged outside. 2. The O-ring plate is further reduced in size and weight by disposing an inner O-ring and an outer O-ring on the O-ring plate and reducing a distance between the inner O-ring and the outer O-ring. The electron beam welding machine according to claim 1, which is characterized in that. 3. The electron beam welding machine according to claim 1, wherein the O-ring plate is fixed to the welding chamber with a fixed O-ring interposed between the O-ring plate and the welding chamber.