KR200377733Y1 - The jig for laser brazing - Google Patents

Abstract

The present invention relates to a jig for laser brazing welding, in particular, to form a fixing jig and a movable jig for crimping and fixing the base material to be welded on the upper portion of the base, the upper side of the base material seated on the upper side of the fixing jig and the movable jig First and second clamps are formed on both sides of the base to be pressed against the jig, and a means for horizontally moving the movable jig in which the upper side of the base material is pressed by the clamps to bring the joint portions of the base material into close contact with each other. Formed on one side, the base material for laser brazing welding can be easily mounted and fixed on the jig, absorbs and cools the heat generated during laser brazing welding, and minimizes thermal deformation of the base material. Laser brazing to simplify and reduce overall machine weight It relates to jeopyong jig.

Description

Jig for laser brazing

The present invention relates to a jig for laser brazing welding, and in particular, the base metal for laser brazing welding can be easily mounted and fixed to a jig, and the heat deformation generated during laser brazing welding can be absorbed and cooled to minimize thermal deformation of the base metal. In addition, the present invention relates to a laser brazing welding jig that can simplify the overall equipment and reduce weight by using a hydraulic cylinder to which a pressure-increasing system is applied.

Laser brazing welding has a smaller thermal deformation than welded arc welding, so it is possible to achieve the desired joining shape. Therefore, the welding brazing welding is rapidly applied to the welding of automobile bodies. It is spreading in earnest.

Such laser brazing welding can focus the laser beam on the welding target part by using laser light whose wavelength and phase are regularly aligned with the heat source of the welding, so that the laser brazing welding can be focused on a small diameter. The biggest feature is that the heat input density (power density) can be significantly increased.

For laser brazing welding, two base materials to be welded should be seated and fixed on the fixture. In the related art, the position of the base material is easily distorted when the base material is settled, which causes a problem of deterioration in welding precision. There was a problem that thermal deformation occurs in the base metal to be welded because it does not efficiently absorb and cool the high temperature heat applied to.

Therefore, the present invention for solving the above problems is to form a fixed jig and a movable jig for crimping and fixing the base material to be welded on the upper portion of the base, pressing the base material seated on the upper side of the fixed jig and the movable jig from above First and second clamps which are in close contact with the jig are formed on both sides of the base, and a means for horizontally moving the movable jig in which the upper side of the base material is pressed by the clamp so that the joining portions of the base material are in close contact with each other on the side of the movable jig. By forming, the base material for laser brazing welding can be easily seated and fixed on the jig, absorbs and cools the heat generated during laser brazing welding to minimize thermal deformation of the base material, and uses a hydraulic cylinder with a pressure-increasing system. Tool for laser brazing welding to simplify overall equipment and reduce weight And a providing purpose.

The present invention for achieving the above object,

A fixing jig is formed on the upper side of the jig mounting portion which is vertically erected on one side of the base, and the movable jig is formed to be linearly movable to face the fixing jig.

The first clamp for pressing and pressing the base material seated on the fixing jig on the upper part of the support vertically installed on one side of the base to be in close contact with the seesaw is operable, and seated on the movable jig on the upper side of the base. Forming a second clamp for pressing the raw material from the upper side to be in close contact;

It characterized in that the movable jig is mounted on one side of the bracket for forward and backward operation by the hydraulic cylinder to which the boosting system is applied.

The bracket is mounted on the linear motion bearing formed on the top of the base is characterized in that the straightness is guaranteed.

In addition, the second clamp is coupled to the holding member formed on one side of the bracket so as to operate the seesaw, one side of the second clamp is coupled as a hinge between the operation of the second cylinder, in a vertical direction to one side of the support One end of the first clamp is coupled to the end between the operation of the installed first cylinder as a hinge.

The fixed jig and the movable jig are formed of a material having excellent thermal conductivity and excellent rigidity, and a cooling water passage through which cooling water flows.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described.

The laser brazing jig of the present invention is formed by standing up the jig mounting portion 12 vertically on one side of the upper end of the base 10, as shown in the figure, the fixing jig 11 at the upper end of the jig mounting portion 12 To form.

In addition, a linear motion bearing 14 is formed on the upper surface of the base 10, and the bracket 15 is mounted on the linear motion bearing 14 so as to be able to linearly move forward and backward, and the bracket 15 is a hydraulic cylinder ( 16 is connected between the operation of the hydraulic cylinder (16) so that the bracket (15) straight forward and backward along the linear motion bearing 14, the movable jig 13 on the upper end of the bracket (15) Form.

The fixing jig 11 and the movable jig 13 are installed at the same height, and the first and second base materials 1 and 2 to be joined are seated.

The first and second base materials (1, 2) are a thin sheet to form a vehicle body or a thin plate to form an aircraft body.

The hydraulic cylinder 16, which moves the movable jig 13 forward and backward to face the fixed jig 11, applies a pressure-increasing method by a pneumatic cylinder so that the hydraulic unit required for driving the cylinder does not need to be separately installed.

Applying the pressure-increasing system as described above, even if the size of the hydraulic cylinder 16 is reduced in size, it is possible to obtain a sufficient force to completely close the movable jig 13 to the fixed jig 11.

In addition, the fixed jig 11 and the movable jig 13 have excellent thermal conductivity and excellent rigidity so as to minimize the deformation of the gap and the step of the base material caused by the high temperature (about 980 degrees) heat generated during laser brazing welding. It is produced as a material, and the cooling water passages through which the cooling water flows inside the jigs 11 and 13 are separately processed.

In order to facilitate the processing of the cooling water passage, the jig 11 and 13 are formed by dividing into 3 to 4 equal parts.

Meanwhile, in the present invention, the first and second clamps 20 for pressing the first and second base materials 1 and 2 in the state seated on the jig 11 and 13 to be in close contact with the jig 11 and 13 are provided. , 30).

The first clamp 20 is hingedly coupled to the upper side of the support 21, which is vertically erected on one side of the base 10, the first clamp is vertically erected on one side of the support 21 One end of the first clamp 20 as a hinge 24 is coupled to the operation 23 of the cylinder 22 as the hinge 24 so that the operation 23 of the first cylinder 22 operates in the vertical direction. The clamp 20 is operated by the seesaw to press the base material 2 seated on the upper side of the fixing jig 11 is configured to close contact.

In addition, the second clamp 30 is installed on the upper end of the bracket 31 is formed on one end of the bracket 15 so as to be operable, the second vertically coupled to one side of the bracket (15) The second clamp 30 is coupled to one side of the second clamp 30 as a hinge 34 to the operating interval 33 of the cylinder 32 by the appearance of the operating interval 33 of the second cylinder 32. Is configured to press close to the base material 1 seated on the upper portion of the movable jig (13).

Referring to the operation of the present invention configured as described above is as follows.

In the initial state, the first and second clamps 20 and 30 are located at positions separated from the jig 11 and 13, and the movable jig 13 is also present at a predetermined distance from the fixing jig 11. .

When a worker mounts the first base material 1 to be joined to the movable jig 13 and operates a separate switch, not shown, while the second base material 2 is seated on the fixing jig 11, As the first and second cylinders 22 and 32 operate, the inter-operation 23 and 33 are raised to bring the first and second clamps 20 and 30 into close contact with the jig 11 and 13.

As a result, the first and second base materials 1 and 2 are pressed by the first and second clamps 20 and 30 to be completely in contact with the upper surfaces of the jig 11 and 13, and the clamps 20 and 30 When the operation is finished, the hydraulic cylinder 16 is operated to advance the bracket 15 (right side in the drawing).

As the bracket 15 is advanced, the movable jig 13 in a state in which the first base material 1 is pressed by the second clamp 30 is moved to the right to be in close contact with the fixing jig 11.

The first and second clamps 20 and 30 are returned to their original state in order to avoid interference with the welding machine during the laser brazing welding while the movable jig 13 and the fixed jig 11 are completely in close contact.

Since the pressing force of the hydraulic cylinder 16 is sufficiently high, the movable jig 13 is in close contact with the fixing jig 11 even when the clamps 20 and 30 that hold the upper sides of the base materials 1 and 2 are returned to their original positions. It is to be able to fix the first and second base materials (1, 2).

In addition, since high temperature heat generated during laser brazing welding is efficiently absorbed by the jig 11 and 13 and is cooled by the cooling water flowing in the jig 11 and 13, thermal deformation of the base material can be minimized. .

As described above, the present invention forms a fixing jig and a movable jig for crimping and fixing the base material to be welded on the upper part of the base, and presses the base material seated on the upper side of the fixing jig and the movable jig from above to closely adhere to the jig. The first and second clamps are formed on both sides of the base, and a means for horizontally moving the movable jig in which the upper side of the base material is compressed by the clamp is formed on one side of the movable jig so that the joining portions of the base material are in close contact with each other. The base material for laser brazing welding can be easily mounted and fixed on the jig, absorbs and cools the heat generated during laser brazing welding, minimizing thermal deformation of the base material, and uses the hydraulic cylinder applied with the boosting system. To provide laser brazing jig for simplification and weight reduction You can expect the effect.

1 is a view showing a jig for laser brazing welding of the present invention.

* Description of the symbols for the main parts of the drawings *

1,2: base material, 10: base,

11: fixing jig, 12: jig mounting part,

13: movable jig, 14: linear motion bearing,

15: Bracket, 16: Hydraulic cylinder,

20: first clamp, 21: support,

22: first cylinder, 23: between operation,

24: hinge, 30: second clamp,

31: holder, 32: second cylinder,

33: between operations, 34: hinge,

Claims (4)

The fixing jig 11 is formed on the upper side of the jig mounting part 12 which is vertically erected on one side of the upper end of the base 10, and the movable jig 13 is formed to be linearly movable to face the fixing jig 11. , The first clamp 20 for coupling the base material seated on the fixing jig 11 to the upper part of the support 21 is installed vertically on one side of the base 10 from the top to be in close contact with the ISO 100 A second clamp 30 is formed on one side of the upper end of the base 10 to press and close the material seated on the movable jig 13 from the upper side. The jig for laser brazing welding, characterized in that the movable jig 13 is mounted on one side of the bracket (15) operating forward and backward by the hydraulic cylinder (16) to which the boosting system is applied. The jig according to claim 1, wherein the bracket (15) is mounted on a linear motion bearing (14) formed on an upper portion of the base (10) to ensure straightness. The method of claim 1, wherein the second clamp 30 is hingedly coupled to the holder 31 formed on one side of the bracket 15 so as to be able to perform a seesaw operation, and one side of the second clamp 30 is connected to the second cylinder. The first clamp 20 is coupled to the operating section 3 of the 32 as a hinge 34 and at the end of the operating section 23 of the first cylinder 2 installed vertically on one side of the support 21. Jig for laser brazing welding, characterized in that one side of the coupling as a hinge (24). The laser brazing welding device according to claim 1, wherein the fixing jig (11) and the movable jig (13) are formed of a material having excellent thermal conductivity and excellent rigidity, and a cooling water passage through which cooling water flows. Jig.