JPH0585527U - Automatic flange feeder - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an automatic flange feeder capable of feeding and positioning a flange to a pipe. [Structure] A plurality of flanges F are mounted and held on a support rod 28 and a bolt hole positioning rod 29 of an automatic flange feeder S, and a centering portion 38 and a pipe fitted to an end portion of a pipe P are attached to a free end portion of the support rod 28. And a receiving portion 39 for receiving the end face of P, and the lower moving table 2 of the automatic flange feeder S.
1 is configured to be movable left and right on the base 20, and the automatic flange feeder S is moved from the right to the right end of the pipe P to fit the centering portion 38 to the end of the pipe P and receive it. The stop portion 39 receives the end surface of the pipe P, and the flange supply drive device 26 causes the clutch 33 and the screw shaft 3 to rotate.
The plurality of flanges F are extruded toward the pipe P by the thickness of the flange F through the screw nut 30, the screw nut 30a, and the bracket 30 to assemble one flange F to the end of the pipe P.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flange automatic feeder for feeding a flange to an end of a pipe.

[0002]

[Prior Art]

 When processing (cutting, bending, flange welding, etc.) pipes used in the piping system of various devices, pipes of various diameters are supplied one by one with a pipe handling device, and the flanges are supplied to the pipes and positioned before welding. There is a need to. Conventionally, a pipe handling device has been put into practical use, in which pipes stored in a pipe rack are sequentially supplied one by one. When welding a flange to a pipe supplied by this device, the flange is supplied. The order of positioning, tacking, and main welding is performed.

Since it is difficult to automate the work of supplying, positioning, and temporarily attaching the above-mentioned flange, it is the actual situation that only the welding work is performed manually. In other words, there are various sizes of pipes and flanges, and there is no uniform positional relationship between pipes and flanges.Therefore, it is necessary to position the flanges at a right angle to the pipes with high accuracy. It was difficult to automate the work of supplying, positioning, and temporarily attaching the flanges because it was necessary to align them with the predetermined positions. An object of the present invention is to provide a flange automatic supply device capable of supplying and positioning a flange to a pipe.

[0004]

[Means for Solving the Problems]

 The automatic flange feeder according to claim 1 is a device for feeding a flange to an end portion of a pipe, wherein a reciprocating drive means is provided with a movable base that reciprocates a predetermined stroke in the length direction of the pipe, and the pipe is mounted on the movable base. A flange supporting rod which is coaxially arranged and cantilevered horizontally on one end side, and has a centering portion which is fitted to the pipe end portion and a receiving portion which receives the pipe end face on the free end portion of the other end. A flange supporting rod is provided, and the moving base is provided with a flange pushing mechanism that pushes a plurality of flanges slidably mounted on the flange supporting rod toward the free end side of the flange supporting rod.

[0005]

[Action]

 In the automatic flange feeder according to claim 1, after moving the movable table to the pipe side, the centering portion of the flange supporting rod is fitted to the pipe end portion, the receiving end receives the pipe end, and the flange supporting rod is held. After positioning the end of the pipe with the flange, the flange pushing mechanism can push the flange for a predetermined distance to fit the flange onto the end of the pipe.

[0006]

[Effect of the device]

 According to the flange automatic feeder of claim 1, the flange support includes a movable base that reciprocates in the length direction of the pipe by the reciprocating drive means, and a centering unit that is cantilevered by the movable base and receives the centering unit. Since the rod and the flange push-out mechanism are provided, the flange can be supplied to the pipe and positioned reliably.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic plan view of a flange automatic assembly welding device installed in a pipe processing factory. This device uses a pipe handling device H for pipes P of various diameters and lengths supplied from the front. One by one is supplied onto the roller of the rotary drive device R, the flange F is fitted to the right end of the pipe P by the automatic flange supply device S, the flange F is welded to the pipe P by the welding robot W, and then this flange is attached. It was designed so that the pipe could be carried out backwards.

The pipe handling device H will be described. The pipe handling device H is provided with the five receiving trays 1 provided in the pipe conveying direction and having a downward slope from the upstream side to the downstream side, and the receiving trays 1 described above. Five stoppers 2 which are fixed to each other in a straight line and fixed to each other, and a bearing 3 which is arranged on the pedestal 1 on the downstream side of the stoppers 2 in parallel with the pipe P in the left-right direction. A shaft 4 supported by the pedestal 1 via the cradle 1, five sets of swinging arms 5 fixed to the shaft 4 at respective downstream end portions and extending to the upstream side, and an air cylinder 6 for reciprocally driving the shaft 4 in the axial direction. And two sets of rocking air cylinders 7 for rocking the rocking arm 5 up and down by rotating the shaft 4, and a pipe P scooped up by the rocking arm 5 above the rotary drive device R. It is provided with an inclined transfer table 8 for transferring to.

As shown in FIGS. 2 and 3, by rotating the shaft 4 via the lever 7a by the rocking air cylinder 7, each rocking arm 5 is tilted downward and its tip end is received. Swing between a stand-by position where the table 1 sinks below and a feed position where the tip of the table tilts upward and floats above the cradle 1 and the transport surface of the swing arm 5 has a downward slope toward the downstream side. The position can be switched.

Each of the swing arms 5 includes a first side plate 10, a second side plate 11, a movable arm 12 and a curved restricting tool 13, and a downstream end of the first side plate 10 is a shaft via a sleeve 14. The second side plate 11 is fixed to the first side plate 10 by a connecting bolt or the like, and the guide portion 12a of the movable arm 12 is fixed to the second side plate 11. Except for the tip side portion, the top plate portion 12b is slidably fitted between the upper portions of both side plates 10 and 11, and the guide portion 12a is slidably fitted to the upper portion between both side plates 10 and 11. It is supported from below by a guide roller 16 provided between the plates 10 and 11 and is prevented from coming off. Between both side plates 10 and 11, bolts 17 are prevented from coming off from above.

The tip side portion of the movable arm 12 projects outside the tips of the side plates 10 and 11, and an arc-shaped curvilinear restricting tool 13 centered on the shaft 4 is connected to the tip end portion of the movable arm 12 to extend downwardly. There is. The curved restricting tool 13 is loosely fitted and guided between a pair of guide rods 15 horizontally projected on the side of the leg 1a of the pedestal 1, and the swing arm 5 swings upward to the supply position. The curved restrictor 13 does not come off the guide rod 15 when it moves.

The upper end of the curved restricting tool 13 projects about 5 cm above the tip of the movable arm 12 and becomes the locking tool 13 a. When the pipe P is picked up by the swing arm 5, The pipe P is locked from the upstream side by the stopper 13a. Here, the position of the movable arm 12 relative to the side plates 10 and 11 is set so that the pipes P of various diameters placed and aligned on the pedestal 1 can be reliably picked up by the swing arm 5 one by one. The position is adjusted by a position adjusting mechanism such as.

As shown in FIG. 3, the downstream end of the movable arm 12 is connected to the pedestal 1 by a link mechanism including a link plate 18a, an L-shaped link plate 18b, and a connecting rod 18c, and an L-shaped link plate 18b. The corners of are pivotally supported by the bracket 19 protruding from the first side plate 10. When the shaft 4 is moved in the direction of arrow A, the pivotal support of the L-shaped link plate 18b moves in the direction of arrow and the connecting rod 18c is moved. 3, the L-shaped link plate 18b rotates counterclockwise in FIG. 3, the movable arm 12 is pushed to the upstream side via the link plate 18a, and the shaft 4 moves in accordance with the axial movement amount of the shaft 4. The position of the tip of the movable arm 12 with respect to both side plates 10 and 11 can be adjusted.

In order to control the movement amount of the shaft 4, the control device of the welding robot W is shared, and the piston rod of the air cylinder 6 is based on the detection signal from the movement amount detector that detects the movement amount of the shaft 4. However, instead of the air cylinder 6, the screw shaft provided on a part of the shaft 4 is screwed with a screw nut, and the screw nut is rotated by an electric motor to rotate the shaft 4. Alternatively, the shaft 4 may be moved in the axial direction, and the amount of rotation of the electric motor may be controlled to control the amount of axial movement of the shaft 4.

In the pipe handling device H, when the pipe P is not supplied, each swing arm 5 is held in the standby position where it is swung downward without supplying air to the air cylinder 7, and is received by the stopper 2. Then, the position of the movable arm 12 is adjusted by the air cylinder 6 via the shaft 4 and the link mechanism according to the diameter of the pipe P to be picked up next time.

Next, when the pipe P is supplied, the rocking arm 5 is swung upward by turning the shaft 4 by the air cylinder 7, and the locking tool 13a causes the most downstream pipe P and its upstream side. Side pipe P, only the pipe P on the most downstream side is scooped up onto the swing arm 5, and when the swing arm 5 reaches the supply position, the pipe P is placed on the swing arm 5 and the inclined carrier 8. And is supplied to the rotary drive device R. At this time, since the next pipe P on the most downstream side is blocked and stopped by the curved restrictor 13, the swing arm 5 can be reliably returned to the standby position. As described above, the pipe handling device H can reliably pick up the pipes P 1 of various diameters one by one and supply them to the next process.

Next, the automatic flange feeder S will be described. As shown in FIGS. 1 and 4, the lower moving table 21 provided on the base 20 can be moved by a predetermined stroke in the left-right direction by an air cylinder, and is supported on the lower moving table 21 via idle wheels 22. The upper moving table 23 thus constructed is configured to be position-changeable in three steps in the front-rear direction via the guide 24 by an air cylinder. The upper moving table 23 is provided with three sets of flange supply units 25, and the lower moving table 21 is provided with a flange supply driving device 26 shared by the three sets of flange supply units 25. A control device for controlling the flange supply drive device 26 is also provided.

The above three sets of flange supply units 25 are for supplying a plurality of flanges F of different sizes, and each flange supply unit 25 is a bracket installed upright on the right end portion of the upper moving table 23. 27, a cantilever-shaped flange support rod 28 having its right end fixed to the bracket 27 and extending horizontally to the left, and a right end fixedly attached to the bracket F in a cantilever manner in a plane above the flange support rod 28. The bolt hole positioning rod 29, the flange support rod 28 and the bolt hole positioning rod 29, and the flange push-out tool 30 provided with the screw nut 30a at the lower end, and the screw nut 30a of the flange pushing tool 30. The screw shaft 32, which is inserted and inserted and is supported by the support block 31 and the bracket 27, in the left-right direction, and the screw shaft 32. One engaging member 33a of the clutch 33 provided at the right end of the upper part of the clutch 33, an upper pressing member 35 pivotally attached to an upper support shaft 34, and a lower portion pivotally attached to a lower support shaft 36. It is composed of a presser tool 37 and the like.

The flange support rod 28 is made of a pipe material, and has a centering portion 38 that has a cone-shaped guide portion 38 a at its free end and is fitted to the end portion of the pipe P, and an end portion of the pipe P 2. A centering / positioning tool 41 is provided which integrally includes a receiving portion 39 for receiving and a fitting portion 40 fitted to the flange support rod 28. The upper pressing member 35 and the lower pressing member 37 are configured to be switchable between a pressing position shown in FIG. 4 and a horizontally retracted position by a mechanism (not shown). The flange supply drive device 26 includes a stepping motor 42, a speed reducer 43, the other engaging member 33b of the output shaft clutch 33, and a control unit.

In the above-mentioned automatic flange feeder S, for example, when the flange F is fed from the central flange feeding unit 25 as shown in FIG. After the engagement member 33a and the engagement member 33b are engaged with each other and the lower moving base 21 is held at the right limit position as shown in FIG. 1, after the pipe P 1 is supplied onto the roller 44 of the rotary drive device R, When the lower moving table 21 is moved to the left limit position, the centering portion 38 of the flange support rod 28 is fitted to the end portion of the pipe P, the receiving portion 39 contacts the end surface of the pipe P, and the pipe P moves to the left. Pressed.

When the lower carriage 21 stops at the left limit position, the pipe P is positioned with respect to the flange support rod 28 as shown in FIG. 4, and the flange supply drive device 26 is driven in this state. The flange push-out tool 30 is driven to the left by the thickness of the flange F to fit the flange F to the end of the pipe P, and the pipe P and the flange F are temporarily welded by the welding robot W, and then the upper presser 35 And the lower presser tool 37 are switched to a horizontal posture, the lower moving table 21 is moved to the right limit position, and the pipe P and the flange F are moved by the welding robot W while rotating the pipe P at a low speed by the rotation drive device R. Weld.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a flange automatic assembly welding device according to an embodiment,

FIG. 2 is a vertical sectional side view of a pipe handling device of the automatic flange assembly welding device;

FIG. 3 is a view on arrow 3 of FIG.

FIG. 4 is a vertical cross-sectional view of a flange automatic supply device of the flange automatic assembly welding device.

[Explanation of symbols]

 21 Lower moving table 25 Flange supply unit 26 Flange supply drive device 28 Flange support rod 29 Bolt hole positioning rod 30 Flange pusher 32 Screw shaft 33 Clutch 38 Centering part 39 Receiving part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Fumihide Inaizumi 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe City Kawasaki Saki Heavy Industries, Ltd. Kobe factory (72) Shigeru Nakayama 3-chome, Higashikawasaki-cho, Chuo-ku, Kobe No. 1 Kawasaki Heavy Industries, Ltd. Kobe Factory (72) Inventor Takashi Sakurai 3-1-1 Higashikawasakicho, Chuo-ku, Kobe City Kawasakizaki Heavy Industries Ltd., Kobe Factory

Claims (1)

[Scope of utility model registration request] 1. A device for supplying a flange to an end portion of a pipe, wherein a reciprocating drive means is provided with a moving base that reciprocates a predetermined stroke in the length direction of the pipe, and the moving base is coaxially arranged with the pipe. A flange support rod that is horizontally cantilevered at one end side, and has a flange support rod that has a centering portion that fits into the pipe end portion and a receiving portion that receives the pipe end surface is provided at the free end portion at the other end. An automatic flange feeder, characterized in that a flange pushing mechanism for pushing a plurality of flanges slidably mounted on a flange supporting rod to a free end side of the flange supporting rod is provided on a movable table.