JP3153842B2 - Ring-shaped workpiece processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for processing a ring-shaped work in which an outer ring and an inner ring are fitted.

[0002]

2. Description of the Related Art There is a ring-shaped part in which an outer ring and an inner ring are fitted and welded together. When processing such a ring-shaped workpiece, FIGS. 1 and 2
As shown in the figure, the outer ring 1 and the inner ring 2 are warm-fitted, and the outer ring 1 and the inner ring 2 are securely joined to each other without any gap. The back surface welding 3b of the joint is performed.

[0003]

In the processing of a ring-shaped work as described above, the outer ring and the inner ring are warm-fitted by a warm-fitting device, and are conveyed to a welding device at another position to be turned upside down. Welded. Therefore, an operator is required for each of the warm fitting device and the welding device,
Due to the high cost, a series of automation has been demanded.

[0004] An object of the present invention is to provide a ring-shaped workpiece processing apparatus which enables a series of automation in response to such a conventional demand.

[0005]

According to a first aspect of the present invention, there is provided an apparatus for warm-fitting an outer ring and an inner ring to each other and for welding.
A first conveyor that aligns and conveys the inner ring, an outer ring conveyance line that is arranged orthogonal to the first conveyor in a plane, and a first conveyor from an intersection of the first conveyor and the outer ring conveyance line. And a second conveyor and a third conveyor extending in the same line direction, and an outer ring stock section in which a number of outer rings are stacked along the outer ring transport line; and an outer ring stock section. An outer ring heating station is arranged in parallel with the outer ring transfer line, and the outer ring is moved from the outer ring stock section to the outer ring transfer section while holding the outer rings one by one, and after heating at the outer ring heating station. An up-and-down movable gripping claw device that moves to the intersection with the first conveyor; The part is a warm-fitting jig that can move up and down from the conveyor surface, receives an outer ring from the gripping claw device, receives an inner ring transferred from the first conveyor via a chuck transfer device, and fits the inner ring. A first work lifter that can move up and down from the conveyor surface is arranged at the exit portion, and a second work lifter that can move up and down from the conveyor surface is also arranged at the third conveyor, and the second conveyor and the third conveyor are connected to each other. A work reversal transfer device is disposed between the first work lifter and the second work lifter, and a rotary welding device for welding a fitting portion between the outer ring and the inner ring that is warmly fitted is disposed immediately above the first work lifter and the second work lifter.

[0006]

According to the above construction, from the supply of the outer ring and the inner ring, the heating of the outer ring, the warm fitting of the outer ring and the inner ring, the front and back welding of the fitting portion of the outer ring and the inner ring, and the completion of the processing. Automate everything up to the removal of goods.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 3 and 4, reference numeral 10 denotes a first conveyor that aligns and conveys the inner ring 2, and reference numeral 11 denotes an outer ring conveyance line that is arranged orthogonal to the first conveyor 10 in a plane. From the intersection 15 between the first conveyor 10 and the outer ring transfer line 11, the second conveyor 1
6 and a third conveyor 17 are arranged to extend in the same line direction as the first conveyor 10.

The outer ring transfer line 11 includes an outer ring stock section 12 in which a large number of outer rings 1 are stacked, and an outer ring heating station 13 arranged in parallel with the outer ring stock section 12. Are arranged along.

The outer ring stock portion 12 has a turntable 12b which is rotated by 180 ° in a plane by a rotation axis 12a of a vertical axis, and stands on the left and right surfaces with the rotation center of the rotation shaft 12a on the turntable 12b interposed therebetween. A plurality of columns 12c for holding the inner diameter of the outer ring 1 provided
It is composed of Further, the outer ring heating station 13 is based on an induction heater controlled by a timer up to about 150 ° C. for a predetermined time.

In the outer ring transfer line 11, the outer rings 1 are gripped one by one from the outer ring stock unit 12 and run on the outer ring transfer line 11. After being heated by the outer ring heating station 13, the first A gripping claw device 14 that moves to an intersection 15 with the conveyor 10 is provided. The gripping claw device 14 includes a gripping claw 14a that can be opened and closed, and a gripping claw lifting / lowering cylinder 14b that moves the gripping claw 14a up and down.

At the entrance of the second conveyor 16, a warm-fitting jig 18 which is raised and lowered from the conveyor surface by a cylinder 18a is arranged.
The first work lifter 19 that moves up and down from the conveyor surface is disposed. Further, the third conveyor 17
Also, a second work lifter 20 which is moved up and down from the conveyor surface by the cylinder 20a is arranged.

The warm-fitting jig 18 receives the outer ring 1 from the gripping claw device 14 that has moved to the intersection 15 between the first conveyor 10 and the outer ring transport line 11, and
Inner ring 2 conveyed from conveyor 10 via chuck conveying device 21 running on guide rail 22
Is received and is warm-fitted into the outer ring 1.

As shown in FIG. 5, the first work lifter 19 and the second work lifter 20 are supported by cylinders 19a, 20a and a guide bar 31 so as to be rotatable in a plane on a support member 32 which moves up and down. The work receiving plate 33 is formed with a knock pin hole 34, the support member 32 is provided with a knock pin 35 which is fitted into and disengaged from the knock pin hole 34 by a solenoid.
3 is allowed and the rotation is stopped.

The second conveyor 16 and the third conveyor 17
And a clamping member 23a for a work (a work in which the outer ring 1 and the inner ring 2 are fitted to each other), and the work on the second conveyor 16 is inverted and transferred to the third conveyor 17. A transfer mounting device 23 is provided.

Above the first work lifter 19, there is provided a first rotary welding device 24a for welding a fitting portion between the outer ring 1 and the inner ring 2 which have been warm-fitted, and also directly above the second work lifter 20. A second rotary welding device 24b for welding a fitting portion between the outer ring 1 and the inner ring 2 is provided.

The first rotary welding device 24a and the second rotary welding device 24b can be moved up and down by a cylinder 25. As shown in FIG. 5, the work of the welding torch 26 and the first and second work lifters 19 and 20 is performed. And a rotation drive mechanism for the receiving plate 33.

The rotary drive mechanism of the work receiving plate 33 is rotatably supported by the rotary drive plate 28 and the support plate 27 to which the oval work receiving plate 33 is fitted, and is fixed to the rotary drive plate 28. The driven sprocket 29 is linked to a driving sprocket rotated by a motor (not shown) by a chain, and
8 is designed to rotate.

The operation of the apparatus of the present invention having the above configuration will be described below. The inner ring 2 is supplied to the first conveyor 10 by an automatic conveyor (not shown). The outer ring stock portion 12 inserts the inner diameter of the outer ring 1 into a support 12c standing on the left and right sides of the rotation center of the rotating shaft 12a, and stacks and holds the plurality of outer rings 1;
One of the pillars 12c is located directly below the gripping claw 14a of the gripping claw device 14 with the side of the support 12c facing the outer ring transport line 11.
Therefore, the other support 12c side is located on the opposite side to the outer ring transport line 11, replenishes the empty support 12c with the outer ring 1, and the support 12c located immediately below the gripping claws 14a becomes empty. Turntable 12b becomes 18
Wait until it rotates 0 °.

Therefore, the gripping claw 14a of the gripping claw device 14
Travels along the outer ring transport line 11 while holding the uppermost outer ring 1 held by the column 12 c located immediately below the same, and after being heated by the outer ring heating station 13, the intersection 15 with the first conveyor 10. At the entrance of the second conveyor 16 and transferred to the warm-fitting jig 18 projecting from the conveyor surface.

On the other hand, the inner ring 2 supplied to the first conveyor 10 is grasped by the chuck conveying device 21, conveyed to the warm-fitting jig 18, fitted to the outer ring 1, and warm-fitted. After the warm fitting, the outer ring 1 and the inner ring 2 (hereinafter simply referred to as “work”) are transferred onto the second conveyor 16 by cooling down with air, and the warm fitting jig 18 is moved down to the first work lifter 19. Transport.

The work conveyed to the first work lifter 19 is received by the work receiving plate 33 from above the second conveyor 16 by the ascending movement of the first work lifter 19, and is moved up to the first rotating welding device 24a, which is lowered, to receive the work. The plate 33 is fitted to the rotation drive plate 28. After the work receiving plate 33 is fitted to the rotation drive plate 28, the knock pin 35 is pulled out from the knock pin hole 34 to make the work reception plate 33 rotatable integrally with the rotation drive plate 28, and the rotation drive plate 28 is rotated by the motor. Then, the work is rotated through 360 ° via the work receiving plate 33 to weld the fitting portion on the work surface.

After welding the fitting portion of the work surface by the first rotary welding device 24a, the knock pin 35 is inserted into the knock pin hole 34 to stop the work receiving plate 33 from rotating, and the first work lifter 19 is lowered to move the work. Second again
It is transferred onto the conveyor 16 and transported to the work reversing transfer device 23.

The work conveyed to the work reversing / transferring device 23 is clamped by the clamping member 23a of the work reversing / transferring device 23, is reversed and transferred onto the third conveyor 17, and is transferred to the second conveyer.
The workpiece is conveyed to the work lifter 20, received by the work receiving plate 33 from above the third conveyor 17 by the upward movement of the second work lifter 20, and fitted to the back surface of the work by the second rotary welding device 24b similarly to the first rotary welding device 24a. Is welded, and the work in which the fitting portion on the back surface of the work is completed is transferred again to the third conveyor 17 and carried out to the next step.

The above-mentioned series of operations is a machining cycle of one work. During the machining cycle of one work, a machining cycle of a subsequent work is performed, and the automatic machining operation is continuously performed. Is done.

[0025]

As described above, according to the present invention, the supply of the outer ring and the inner ring of the ring-shaped work in which the outer ring and the inner ring are fitted to each other enables the heating of the outer ring and the heating of the outer ring and the inner ring. It is possible to automate the entire process from the fitting process, the front and back welding process of the fitting part between the outer ring and the inner ring, and the unloading of the completed product, which has the advantage of reducing the number of workers and obtaining highly efficient processing. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a ring-shaped workpiece processed by the apparatus of the present invention.

FIG. 2 is a sectional view of a ring-shaped work.

FIG. 3 is a plan view of the device of the present invention.

FIG. 4 is a front view of the device of the present invention.

FIG. 5 is a sectional view of a main part of the rotary welding apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer ring 2 Inner ring 3a Surface welding 3b Back surface welding 10 1st conveyor 11 Outer ring conveyance line 12 Outer ring stock part 13 Outer ring heating station 14 Gripping claw device 14a Gripping claw 16 Second conveyor 17 Third conveyor 18 Warm fitting Tool 19 First work lifter 20 Second work lifter 21 Chuck transfer device 23 Work reversal transfer device 24a First rotary welding device 24b Second rotary welding device 26 Welding torch

Continuation of the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) B23K 9/00 B23K 9/028 B23P 11/02 B23P 19/04 B23P 21/00

Claims (1)

(57) [Claims] An apparatus for warm-fitting and welding an outer ring and an inner ring, comprising: a first conveyor for aligning and transporting the inner ring; and a first conveyor arranged orthogonal to the first conveyor in a plane. Outer ring transport line,
A second conveyor and a third conveyor arranged in the same line direction as the first conveyor from an intersection of the first conveyor and the outer ring transport line, and a plurality of the second conveyors and the third conveyor are arranged along the outer ring transport line; An outer ring stock portion in which outer rings are stacked, and an outer ring heating station arranged in parallel with the outer ring stock portion are arranged, and the outer ring transfer line holds the outer rings one by one from the outer ring stock portion. It is provided with a vertically movable gripping claw device that travels on an outer ring transport line, moves to an intersection with the first conveyor after being heated at the outer ring heating station, and protrudes and retracts from the conveyor surface at the entrance of the second conveyor. It can move up and down, receive the outer ring from the gripping claw device, and transport the chuck from the first conveyor. A warm-fitting jig that receives and fits the inner ring conveyed through the device, a first work lifter that can move up and down from the conveyor surface at the exit portion, and also protrudes from the conveyor surface to the third conveyor A second work lifter that can move up and down, a work reversing transfer device is arranged between the second conveyor and the third conveyor, and a warm-fitted outer ring is provided immediately above the first work lifter and the second work lifter. A ring-shaped workpiece processing device, wherein a rotary welding device for welding a fitting portion with an inner ring is arranged.