JPH031153Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for attaching a nozzle to a tube that is the main body of a heat exchanger.

Conventional technology Conventionally, when attaching a nozzle to a tube body that is the main body of a heat exchanger, the tube body is placed horizontally on a turning roller and the nozzle attachment point is raised upward.
While the nozzle is suspended by a crane or the like, the nozzle is guided to a predetermined position and installed while measuring its dimensions visually or manually.

Problems to be Solved by the Invention According to the conventional nozzle installation work described above, the positioning of the nozzle was done visually or manually, which resulted in the problem that it was extremely time consuming and time consuming, and the installation accuracy was poor. .

Therefore, an object of the present invention is to provide a nozzle mounting device that can solve the above problems.

Means for Solving the Problem In order to solve the above problem, the nozzle mounting device of the present invention has a rotary table rotated in a horizontal plane by a rotary drive device on one end side of the mount, and a radial pattern on the rotary table. is provided with a plurality of first support members for supporting the ends of the tube body, and a first fixing claw for fixing the outer surface of the tube body is engaged with the first support member so as to be movable in the radial direction of the rotary table. The first support member is rotatably provided with a first threaded rod that is screwed into the first fixing pawl, and a traveling carriage that can freely approach and leave the rotary table is disposed on the other end side of the mount. A guide frame is erected on the trolley, and an elevating body that is vertically guided by the guide frame and can be raised and lowered by an elevating device is provided, and a swing table is mounted on a horizontal axis at the end of the elevating body on the rotary table side. A second support member for supporting a plurality of nozzles is provided radially on the swinging table, and a second fixing claw for fixing the outer surface of the nozzle is attached to the second support member so that the swinging table has a radius of a second threaded rod is rotatably provided on each of the second support members and is screwed into the second fixing claw; The elevating body is provided with a swinging device for swinging between a vertical position parallel to the side surface of the tube body and a horizontal position parallel to the support surface of the rotary table.

Operation First, with the tube upright, turn the rotary table to the
After being placed on the support member, the first threaded rod is rotated to fix the tubular body with the first fixing claw. Next, similarly to the tubular body, after placing the nozzle in an upright position on the second support member of the swing table in a horizontal position, the second threaded rod is rotated and the nozzle is fixed by the second fixing claw. Next, after the swing table is brought into a vertical position by the swing device, the traveling carriage and the elevating body are operated to move the nozzle to the mounting position of the tube body. At this time,
The rotary table is rotated so that the nozzle mounting position of the tube body faces the nozzle side. Then, the nozzle is solidified into the tube body in the above state.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. This device is for attaching nozzle B to tube body A, which is the main body of the heat exchanger.It is roughly divided into tube body holder 1, which holds tube body A in an upright position, and tube body holder 1, which fixes and holds nozzle B. It is composed of a nozzle holding part 2 that positions the nozzle B on the tubular body A side.

First, the tube holding part 1 will be explained. Reference numeral 3 denotes a rotary table for supporting the tube body A, which is disposed at one end of the pedestal 4, and is rotatably supported in a horizontal plane via a support base 5 and a swing bearing (not shown) on the support base 5. The table body 6 and this table body 6
and a rotating electric motor (rotary drive device) 9 that rotates the table via a reducer 8 having a ring gear 7 and a pinion 8a provided on its outer periphery, and four rotary motors (rotary drive device) 9 provided radially at 90° intervals on the upper surface of the table main body 6. The first supporting member 10 for supporting the end face of the tubular body A, and first fixing claws 11 for fixing the side surface of the tubular body A disposed on each of the first supporting members 10. Each of the first support members 10 includes a bottom plate 12, front and rear end plates 13, 13, and a pair of left and right support rods 14, 4 that are provided between the end plates 13, 13 and directly support the tube body A. It consists of Further, the first fixing claw 11 is movably engaged and held by the pair of support rods 14, 14, and the support rods 14, 1
The first movable body 16 is screwed onto a first threaded rod 15 disposed between the first movable body 16 and the first claw body 17 provided on the first movable body 16. All of the first claw bodies 17 are arranged to move in synchronization. That is, a main bevel gear 18 is attached to the inner end of each first threaded rod 15, and a sub-bevel gear 19 that meshes with the main bevel gear 18 is rotatably provided on the table body 6 side. .
Therefore, for example, the end of any first threaded rod 15,
When rotated by a handle etc., the secondary bevel gear 19
Since the remaining three first threaded rods 15 rotate synchronously through the first screw rods 15, each of the first claw bodies 11 can be moved to the same radial position. Reference numeral 20 denotes a first rotation reference position setting tool for the rotary table 3 that is protruded from the side of the support base 5, and a bottom plate 21 that is protruded from the side of the support base 5.
A pair of left and right support rods 22, 22 provided on the bottom plate 21, a rotary screw shaft 23 with a handle disposed between the support rods 22, 22, and a rotary screw shaft 23 that is guided by the support rods 22, 22. Rotating screw shaft 23
It is composed of a movable body 24 screwed together with the movable body 24, and a pointer 25 projecting upward from the movable body 24.

Next, the nozzle holding section 2 will be explained. 31
A swing table for holding the nozzle B is disposed at the other end of the pedestal 4, and is movable toward and away from the rotary table 3, as well as up and down. That is, the frame 4
On the other end side of the top, a pair of left and right rails 32, 32 are arranged, and a running cart 34 having running wheels 33 that can freely run on these rails 32, 32 is arranged. Reference numeral 35 denotes a traveling electric motor that rotates the traveling wheels 33 via a reduction gear (not shown), and is disposed within the traveling carriage 34. Further, a gate-shaped guide frame 37 is erected on the traveling carriage 34, and an elevating body 38 is disposed within the guide frame 37 so as to be movable up and down by an elevating drive device 39. That is, the elevating body 38 is connected to the elevating frame 40 and the guide frame 37 at the horizontal and vertical positions of the elevating frame 40.
and guide rollers 41 provided so as to sandwich the hanging portions 37a on both sides from the front and back, and the elevating drive device 39 is provided on the upper surface of the horizontal portion 37b of the guide frame 37, and the elevating/retracting rod 4
2a is composed of a screw jack 42 connected to a lifting frame 40, and a driving electric motor 43 which is also provided on the upper surface of the horizontal portion 37b and drives the screw jack 42. Furthermore, a swing table 31 is provided at the end of the lifting frame 40 on the rotary table 3 side so as to be swingable in a vertical plane. That is, a mounting base 44 of the swinging table 31 is supported via a horizontal pin 46 by a pair of left and right arms 45, 45 protruding from the front end of the lifting frame 40, and a cylinder device (swinging A rod 47a of this cylinder device 47 is connected to a mounting base 44 of the swing table 31 via a connecting arm 48. Therefore, with this cylinder device 47, the swing table 31 can be placed in a vertical position in which its support surface is parallel to the side surface of the tube A on the rotary table 3, and in a horizontal position in which its support surface is parallel to the support surface of the rotary table 3. It is made to oscillate between. The swing table 31 includes the above-mentioned mounting base 44, a table body 49 rotatably supported on the mounting base 44 in a horizontal plane, and a nozzle B provided radially on three sides of the table body 49. Second supporting
A support member 50 and a second fixing claw 51 provided on the second support member 50 to hold the end of the nozzle B.
and a rotation drive shaft 52 for rotating the table main body 49. Each of the second support members 50 includes a bottom plate 53 and front and rear end plates 54, 54.
and a pair of left and right support rods 55, 55 that are provided between the end plates 54, 54 and support the nozzle B.
It is composed of. In addition, the second fixing claw 5
Reference numeral 1 denotes a second moving body 5 which is movably engaged and held by the pair of support rods 55, 55 and screwed into a second threaded rod 56 disposed between the support rods 55, 55.
7, and a second claw body 58 which is provided on the second movable body 57 and directly holds the end face and side face of the nozzle B. And each of the second claw bodies 5
8 are all designed to move in sync. That is,
A main bevel gear 59 is attached to the inner end of the second threaded rod 56, and a sub-bevel gear 60 that meshes with the main bevel gear 59 is rotatably provided on the table body 49 side. Therefore, for example, if the end of any second threaded rod 56 is rotated by a handle or the like, the remaining two second threaded rods 56 are rotated in synchronism via the auxiliary bevel gear 60, so that each of the second threaded rods 56 The claw body 58 can be moved to the same radial position.
Note that the rotational drive shaft 52 is operatively connected to the table main body 49 via a worm mechanism (not shown). Reference numeral 61 denotes a second rotation reference position setting tool for the swing table 31, which is protruded from the side of the mounting base 44, and has the same configuration as that of the above-mentioned rotary table 3. That is, this setting tool 61 is arranged between a bottom plate 62 protruding from the side of the mounting base 44, a pair of left and right support rods 63, 63 provided on this bottom plate 62, and between these support rods 63, 63. a rotary screw shaft 64 with a handle, and a movable body 65 guided by the support rods 63, 63 and screwed into the screw shaft 64.
and a pointer 6 protruding upward from this movable body 65.
It consists of 6.

Next, the process of attaching the nozzle to the tube will be explained.

First, after placing the tubular body A in an upright state on the first support member 10 of the rotary table 3, the first threaded rod 1
5 is rotated to fix the tubular body A from all sides by the first claws 17. Next, the table main body 6 is rotated so that a predetermined reference position (for example, a designed 90° position) of the tube body A matches the pointer 25 of the first rotation reference position setting tool 20, and the position at this time is 0. Instruct the control panel to set the point. Next, the nozzle B is supported in an upright state by the second claw body 58 of the swing table 31 in a horizontal position, and the second claw body is brought into contact with the nozzle 58 by the second threaded rod 56 and fixed from three sides. Next, similarly to tube A, the table main body 49 is rotated by the rotary drive shaft 52 to align the reference position of the nozzle B with the pointer 66 of the second rotational reference position setting tool 61. Next, the cylinder device 47 causes the swing table 31 to swing 90 degrees to a vertical position as shown by the imaginary line, and the traveling carriage 34
Then, the elevating body 38 is driven, and the nozzle B is moved to a predetermined mounting position on the tube body A. Of course, at this time, the tube body A is rotated within a horizontal plane so that the mounting position of the nozzle B is directed toward the nozzle B side. Further, among the above-mentioned work steps, the steps after the swinging operation of the swinging table 31 are automatically performed by the control device. Therefore, the mounting position of nozzle B, for example, the rotation angle of tube A, the distance from nozzle B to tube A,
Data such as the mounting height of the nozzle B from the reference plane is input into the control device in advance. Incidentally, the rotation angle of the rotary table 3 and the vertical position of the elevating body 38 are fed back to the control device by rotary encoders 67 and 68 attached to the respective rotary encoders. Also, although not shown, the traveling trolley 34
A similar position detector is also attached to provide feedback.

Incidentally, in the above embodiment, the nozzle B is supported on the support rod 55 via the second claw body 58, but as in the case of the tubular body A, the nozzle B may also be supported directly on the support rod 55. good.

Effects of the Invention According to the above configuration of the present invention, there is a rotary table that fixedly supports the tube body in an upright state and is rotated by a rotary drive device, and a nozzle that is fixedly held at a position corresponding to the rotary table and is attached to the tube body side. A rocking table is provided, and this rocking table is moved in the longitudinal direction and height direction with respect to the tube body using an elevating body and a traveling cart, so that the nozzle can be quickly moved relative to the tube body. And it can be installed accurately.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is an overall plan view, and Fig. 3 is a view taken in the direction of - arrow in Fig. 1 when the swing table is in a vertical position. . 1...tube holding part, 2...nozzle holding part, 3...
... Rotating table, 6 ... Table main body, 9 ... Rotating electric motor, 10 ... First support member, 11 ... First fixed claw, 14 ... Support rod, 15 ... First threaded rod, 17 ... First claw body, 18... Main bevel gear, 1
9...Sub-bevel gear, 20...First rotation reference position setting tool, 31...Swing table, 34...Traveling trolley, 35...Traveling electric motor, 37...Guide frame,
38... Lifting body, 39... Lifting drive device, 47...
... Cylinder device, 50 ... Second support member, 51
...Second fixed claw, 56...Second threaded rod, 57...
Second moving body, 58... Second claw body, 59... Main bevel gear, 60... Sub-bevel gear, 61... Second rotation reference position setting tool.

Claims (1)

[Scope of utility model registration request] A rotary table that is rotated in a horizontal plane by a rotary drive device is disposed at one end of the mount, and a plurality of first pipes for supporting the ends of the tubes are arranged radially on the rotary table.
A supporting member is provided, and a first fixing claw for fixing the outer surface of the tube body is engaged with the first supporting member so as to be movable in the radial direction of the rotary table, and each of the first supporting members is provided with:
A first threaded rod that is screwed into the first fixed pawl is rotatably provided, and a traveling carriage that can move toward and away from the rotary table is arranged on the other end of the mount, and a guide frame is mounted on the traveling carriage. An elevating body is installed upright and is vertically guided by the guide frame and can be raised and lowered by an elevating device, and a swing table is supported via a horizontal axis at the end of the elevating body on the rotary table side; A second support member for supporting a plurality of nozzles is provided radially on the swing table, and a second support member for supporting a plurality of nozzles is provided radially on the swing table.
A second fixing pawl for fixing the outer surface of the nozzle is engaged with the support member so as to be movable in the radial direction of the rocking table, and a second fixing pawl that is screwed onto the second fixing pawl is attached to each of the second support members.
A threaded rod is rotatably provided, and the swing table is swung between a vertical position in which the support surface thereof is parallel to the side surface of the tube on the rotary table and a horizontal position in which the support surface is parallel to the support surface of the rotary table. A nozzle mounting device characterized in that the elevating body is provided with a swinging device for causing the elevating body to move.