JPH0741413B2 - Paste type brazing material automatic feeder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a brazing portion in which a work formed by temporarily assembling a plurality of brazing members is arranged on the circumference, and a paste-like brazing material is attached to the brazing portion. The present invention relates to a paste-type automatic brazing filler metal feeder.

[0002]

2. Description of the Related Art A pump impeller and a turbine runner of a torque converter have a large number of blades press-formed radially between a press-formed outer cup-shaped member and a press-formed inner ring-shaped member, It is manufactured by brazing the abutting portion of the outer cup-shaped member and the blade and the abutting portion of the inner ring-shaped member and the blade.

[0003]

When brazing a pump impeller or a turbine runner as described above, the outer cup-shaped member as a brazed portion of a workpiece and the blade but the inner ring-shaped member and the blade are butted. Since linear or paste brazing filler metal is supplied by hand to the part, not only is the work efficiency inferior and there is a limit to cost reduction, but also the supply amount and supply of brazing filler metal depending on the skill level of the operator. There is also an inconvenience that the position becomes unstable and a brazing defect easily occurs.

Therefore, an object of the present invention is to provide a device for automatically supplying an appropriate amount of a paste-like brazing material to an appropriate position of a portion to be brazed arranged on the circumference of a work.

[0005]

SUMMARY OF THE INVENTION The present invention provides a device for automatically and properly supplying a paste-like brazing material to a portion to be brazed arranged on the circumference of a work.
The apparatus is provided with a rotating plate on which the work is placed and which is horizontally driven to rotate about the center of the brazed portion, and the center of rotation of the rotating plate penetrates the center of the brazed portion of the workpiece. A detachable core bar is installed, a column is erected on the side of this rotating plate, a horizontal arm is attached to this column so that it can be moved up and down, and a cylinder for vertically driving the horizontal arm is erected along the column. Connected to the base end of the horizontal arm,
A vertical arm is attached to the horizontal arm so that the vertical movement is adjustable, a holder is attached to the lower end of the vertical arm via a rotary hinge, and the workpiece placed on the rotary plate by rotating the holder by the rotary hinge. In this configuration, a brazing material injection nozzle whose orientation angle with respect to the part to be brazed is adjusted is installed.

[0006]

[Operation] The horizontal arm is stopped higher by the cylinder, and the center of the brazed portion of the work is placed on the rotating plate while being fitted on the cored bar provided at the rotation center of the rotating plate, and then the cylinder is moved by the cylinder. The horizontal arm is stopped downward, and the rotating plate is intermittently rotated while jetting the brazing material in paste form from the brazing material injection nozzle to cover the workpiece positioned on the circumference around the core metal. A fixed amount of brazing material can always be supplied to the attachment part automatically and properly, and the efficiency of the brazing material supply work and labor saving can be achieved. In addition, the vertical movement of the horizontal arm by the cylinder, the vertical movement adjustment by the vertical arm attached to the horizontal arm, and the orientation angle adjustment by the holder attached to the lower end of the vertical arm via the rotary hinge, make it possible to move on the circumference. The brazing material injection nozzle can always be properly positioned with respect to the portion to be brazed, and the above work can be properly performed. Also, by using this positioning mechanism and exchanging the core metal, the brazing is performed on the circumference. This device can be applied to various works having attachment parts at any time.

[0007]

1 to 3 show an embodiment of the present invention.

As shown in FIG. 3, a work W used in this embodiment is a press-molded outer cup-shaped member Wa and a press-molded inner ring-shaped member like a pump impeller or a turbine runner of a torque converter. A large number of press-molded blades Wc are radially arranged at equal intervals between Wb and temporarily assembled, and a brazed portion arranged on the circumference, that is, a portion where the outer cup-shaped member Wa and the blade Wc contact each other. It has a brazed portion and a brazed portion where the inner ring member Wb and the blade Wc abut.

As shown in FIG. 1, the paste-like brazing filler metal automatic supplying device for the work W is a rotary plate 3 rotatably mounted on a rotary shaft 2a which is erected on a device base 1 via a bearing member 2.
And a motor 4 mounted on the device base 1 is connected to the rotary shaft 2a of the rotary plate 3 via a power transmission mechanism including a speed reducer 5 and a gear 6, and the rotary shaft 2a is rotated by driving the motor. The rotating plate 3 is horizontally rotated.

A shaft portion 2b integral with the rotary shaft 2a is provided so as to project upward from the center of the rotary plate 3, and a core metal 2c is provided on the shaft portion 2b.
Is externally fitted and fastened with a bolt 20, and a through hole Wd formed at the center of the outer cup-shaped member Wa of the work W, that is, at the center of the portion to be brazed in the cup-shaped member is attached to the core 2c. Fitting from above, the ring-shaped bottom of the outer cup-shaped member Wa is placed on the rotary plate 3, and the rotary plate 3 is intermittently rotated by the motor 4 to intermittently work the work W fitted to the core metal 2c. Rotate. Therefore, the workpiece W rotates intermittently around the center of the brazed portion.

A column 7 is erected on the side of the rotary plate 3 of the apparatus base 1, and a horizontal arm 9 is slidably attached to the column 7 via a bearing member 8. One end is pivotally connected to the device base 1 and the other end of an elevating cylinder 10 which is erected upright along the support column 7 is connected to the end so that the horizontal arm 9 is moved up and down.

A plurality of vertical arms 11 are attached to the extending portion of the horizontal arm 9 arranged above the rotary plate 3 via a connecting tool 12, and the vertical arm 11 has slits of the connecting tool 12 shown in FIG. The vertical movement can be adjusted by loosening / fastening the bolt 14 in the portion 13.
A brazing material injection nozzle 15 is attached to the lower end of 1 so that its orientation angle can be adjusted. For example, a holder 17 for clamping each injection nozzle 15 is provided, and the holder 17 is attached to the lower end of the vertical arm via the shaft 16 so as to be fastened and fastened, and
The workpiece W on the rotary plate 3 is provided with a mounting portion of the lower end 11 of the vertical arm and the holder 17 by the shaft 16 as a rotary hinge.
The orientation angle with respect to the part to be brazed is adjustable.

Each of the plurality of brazing filler metal injection nozzles 15 has a pressure air supply port 15a, a brazing filler metal supply port 15b, a brazing filler metal injection port 15c, and a flow rate adjusting operation portion 15d, and is a paste-like brazing filler (not shown). The paste-like brazing material supplied from the material supply source to the brazing material supply port 15b is supplied to the pressure air supply port 1
It is ejected from the brazing filler metal injection port 15c via the pressure air supplied from 5a.

When the flow rate adjusting member 15d is rotated, a needle pin (not shown) built in the brazing filler metal injection nozzle 15 adjusts the opening of the flow path of the brazing filler metal injection port 15c so that the amount of the brazing filler metal ejected. Adjusted.

According to this embodiment, the extension of the elevating cylinder 10 raises the horizontal arm 9 and the brazing filler metal injection nozzle 15 attached to the vertical arm 11 rises integrally therewith.
In this state, the worker fits the through hole Wd of the work W, in which the outer cup-shaped member Wa, the inner ring-shaped member Wb, and the plurality of blades Wa are temporarily assembled, into the core metal 2c, and then the work W
Is placed on the rotary plate 3, and then the elevating cylinder 10 is contracted to lower the horizontal arm 9 and the brazing filler metal injection nozzle 15 along the support column 7. Outer cup-shaped member Wa and one blade Wc
Of the paste-like brazing material at a position close to the part to be brazed, and the other brazing material injection nozzle 15
A predetermined amount of the paste-like brazing material is ejected at a position where the brazing material injection port 15c of the above-mentioned is close to the inner ring member Wb and the brazed portion of one blade Wc different from the above. Then, after the brazing filler metals 18 and 19 ejected from the brazing filler metal ejecting nozzle 15 adhere to the upper end of the brazed portion of the work W, the rotary plate 3 is stopped by the blade Wc while the brazing filler metal ejecting nozzle 15 is stopped at the lowered position. After rotating by one pitch in the radial arrangement and stopping, the brazing material is ejected to each brazed portion of the adjacent portion again. By repeating the intermittent rotation of the rotating plate 1 and the brazing material ejecting operation of the brazing material ejecting nozzle 15 over the entire circumference of the brazing portion, a large amount of brazing material is distributed to the upper end of each brazing portion arranged on the circumference. After the point supply is completed, the elevating cylinder 10 is extended and the brazing filler metal injection nozzle 15 is moved up to wait for the work to be taken out and the next work set.

The work W to which the brazing material is attached at multiple points is supplied to a brazing furnace (not shown), and the melted brazing material is the brazed portion (butting portion) of the outer cup-shaped member Wa and the blade Wc and the inner ring-shaped member. Wb and the blade Wc go around to the brazed portion (butting portion) to complete brazing.

Further, according to this embodiment, the mandrel 2c is detachably provided on the shaft portion 2b at the center of rotation of the rotary plate 3 so that the mandrel 2c is coaxial with the bolt 20, so that the mandrel 2c is consumed. When rattling with the work W occurs, it is easy to replace it with a new core bar or to replace it with a core bar suitable for the work.

Further, in the above embodiment, when the work W is changed to another work W such as changing from the pump impeller to the turbine runner, the core metal 2c is replaced with a work that matches the changed work W, and the change is made. The subsequent work W is placed on the rotating plate 3 and the lifting cylinder 10 is contracted to lower the brazing filler metal injection nozzle 15 to adjust the vertical position of the vertical arm 11 and at the same time, the brazing filler metal injection nozzle to the brazed portion. The orientation angle of 15 is adjusted to adjust and set the position of the injection port 15c with respect to the brazed portion.

The present invention is suitable when the shape of the work W is annular, cylindrical, or cup-shaped, but if the work has a brazed portion arranged on the circumference, the outer shape of It is applicable regardless of. Further, it is possible to intermittently rotate the rotary plate 3 according to the work W, or to make one continuous rotation to continuously eject the paste-like brazing material to the portion to be brazed to perform annular attachment. Further, the brazing material injection nozzle 15 may be one or more.

[0020]

According to the present invention, the center of the portion to be brazed on the circumference of the work is rotated by mounting the work on the rotary plate while fitting the work on the cored bar arranged at the center of rotation on the rotary plate. The center work set can be easily and accurately performed.Next, the brazing material injection nozzle is lowered and the rotary plate is rotated, and at the same time, the paste-like brazing material is ejected from the nozzle to apply the brazing material to the part to be brazed on the work. By supplying the brazing filler metal, it is possible to automatically supply an appropriate amount of brazing filler metal to each brazing part on the circumference, and to feed the brazing filler metal to the work at multiple points or continuously. The efficiency of can be remarkably improved.

According to this apparatus, a proper amount of the paste-like brazing material can be automatically supplied to the proper position on the circumference without being influenced by the skill of the operator. The occurrence can be effectively prevented.

Further, according to the present invention, the center of the portion to be brazed can be easily aligned with the center of rotation of the rotary plate by simply penetrating the work into the core metal, and can be used for circumferential distribution of the brazing material. It is possible to quickly switch to a different work by exchanging.
That is, a fixed amount of vertical movement of a horizontal arm by a cylinder, vertical movement adjustment of a vertical arm attached to the horizontal arm, and orientation angle adjustment by a holder attached to the lower end of the vertical arm via a rotary hinge are performed. Positioning of the brazing material injection nozzle with respect to the brazed portion arranged on the circumference,
The access position can always be set properly and easily, and the brazing filler metal supply work to the work having the portion to be brazed on the circumference can be appropriately performed. Further, by using the above-mentioned positioning mechanism and exchanging the core metal, the present apparatus can be applied to various works having a portion to be brazed on the circumference, and it is effective as a general-purpose machine capable of coping with the various works at any time.

[Brief description of drawings]

FIG. 1 is a side view showing a partial cross-section of a pasty brazing filler metal feeder according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a mounting structure of a horizontal arm and a vertical arm in the above device.

FIG. 3 is a plan view showing an example of a work applied to the above apparatus.

[Explanation of symbols]

1 Equipment Base 2c Core Bar 3 Rotating Plate 7 Support 9 Horizontal Arm 11 Vertical Arm 12 Vertical Arm 12 Connecting Tool for Adjusting Vertical Arm Up and Down 15 Brazing Material Injection Nozzle 16 Shaft Constituting Hinge for Adjusting Nozzle Orientation W Work Wa Outside Cup-shaped member Wb Inner ring-shaped member Wc Blade

Claims (1)

[Claims] 1. An apparatus for use when a work has a brazed portion arranged on the circumference thereof, and a paste-like brazing material is supplied to the brazed portion. A rotary plate that is driven to rotate horizontally about the center of the brazed portion as a center of rotation, and a cored bar that is inserted through the center of the brazed portion of the work is detachably provided at the center of rotation of the rotary plate. A column is erected on the side of the rotary plate, a horizontal arm is attached to the column so as to be able to move up and down, and a cylinder for vertically moving the horizontal arm is erected along the column and connected to the base end of the horizontal arm. , A vertical arm is attached to the horizontal arm so as to be vertically adjustable, a holder is attached to the lower end of the vertical arm via a rotary hinge, and the holder is mounted on the rotary plate by rotating the holder by the rotary hinge. Let's cover the work Pasty brazing material automatic feeding device, wherein the orientation angle with respect to only part fitted with brazing material injection nozzle to be adjusted.