JPH11771A - Joining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joining device applicable to the manufacture of such a huge dimension of piping arrangement as an oil well pipe whose length after joining extends to several kilometers, first of all, the joining device adjustable the position of the upper side stock to be joined before joining. SOLUTION: In the joining device A feeding the stock P to be joined from the upper side toward the lower side, the joining device A is provided with the lower block L holding the lower side stock P2 to be joined and the upper block U holding the upper side stock P1 to be joined and pressing the held upper side stock P1 to be joined to the lower side stock P2 to be joined, and provided with the horizontal position adjusting means 13 adjusting the position in the horizontal surface of the upper side stock P1 to be joined held with the upper part block U and the inclination adjusting means 14 adjusting the inclination of the upper side stock P1 .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a joining apparatus.
More specifically, the present invention relates to a joining device capable of adjusting a position of a joining end surface before joining.

[0002]

2. Description of the Related Art Conventionally, various products have been manufactured using diffusion bonding because of the good quality of the bonding portion. Also, if an oil country tubular goods are manufactured using this diffusion joining, it is expected that an oil country tubular goods with improved quality of the joints can be obtained.

[0003] However, most of the devices manufactured by using the diffusion bonding have relatively small shapes, so that a conventional diffusion bonding device can be as long as several kilometers after bonding like an oil country tubular good. It cannot be applied to the manufacture of pipes of long and large dimensions.

[0004] For this reason, manufacturers of long-sized pipes such as oil country tubular goods have been keenly demanding the emergence of a diffusion bonding apparatus suitable for joining long-sized pipes, particularly a diffusion bonding apparatus capable of uniformly contacting the joining end faces.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and is intended to manufacture pipes of a large size such as an oil country tubular good having a length of several kilometers after joining. It is an object of the present invention to provide a joining apparatus which can be applied to the present invention, in particular, a joining apparatus which can adjust the position of the upper joined material before joining.

[0006]

A joining apparatus according to the present invention is a joining apparatus in which a material to be joined is supplied from above to below, wherein the joining apparatus includes a lower block for holding a lower material to be joined. An upper block that holds the upper material to be joined and presses the upper material to be held against the lower material to be joined, and adjusts a position of the upper material to be held held by the upper block in a horizontal plane. A horizontal position adjusting means.

In the joining apparatus according to the present invention, it is preferable that the upper block includes an inclination adjusting means for adjusting an inclination of the upper workpiece.

The upper block is, for example, a vertically movable upper block body for holding an upper workpiece, and an upper block body for lifting and lowering the upper block body and connecting the upper workpiece to a lower workpiece. And a lifting / lowering means for pressing the surface. Further, the upper block main body includes, for example, an outer member, and an inner member holding an upper member to be joined, which is held inside the outer member so as to be horizontally movable and tilt-adjustable. You.

The elevating / lowering means includes, for example, three sets of hydraulic cylinders which are concentrically joined to the upper block body at intervals of 120 degrees.

[0010] The horizontal position adjusting means is mounted, for example, on the inside that is horizontally held by the outer member and that holds the inner member, and is mounted on the outer member so that it can advance and retreat. A first driving screw member;
A driving screw member and a second driving screw member attached to the outer member so as to be able to advance and retreat at an interval of 90 degrees;
The horizontal position of the inner member is adjusted by adjusting the driving amount of the horizontal moving member by the driving screw member and / or the second driving screw member, thereby adjusting the horizontal position of the upper workpiece.

[0011] The inclination adjusting means may include, for example, a cylindrical member supporting a flange member provided on the outer periphery of the inner member rotatably held by the horizontal moving member, and a 120-degree distance from the cylindrical member. A disc cam member supporting a flange member provided on the outer periphery of the inner member provided concentrically and provided with a driving mechanism for driving the disc cam member; By adjusting the height of the disk cam member supporting the flange member by a mechanism,
The upper member is held by the inner member to adjust the inclination of the upper member.

Further, the inner member includes, for example, an upper clamp means disposed at an upper part thereof and a lower clamp means disposed at a lower part thereof, and the upper clamped material allows the upper member to be joined to a desired grip. It is gripped by force, and the lower end clamp prevents deformation of the joining end of the upper joining material. Here, it is preferable that the distance between the upper clamp means and the lower clamp means is at least three times the diameter of the upper workpiece to be clamped. The upper clamp means and the lower clamp means have a first claw block, a second claw block, and a third claw block arranged at intervals of, for example, 120 degrees.

[0013]

In the joining apparatus according to the present invention, since the horizontal position adjusting means for adjusting the horizontal position of the material to be joined supplied from above is provided, the upper material to be joined is moved in the horizontal direction with the lower material to be joined. Contact can be made without slippage. That is, the upper material to be joined and the lower material to be joined can be contacted without any step. Therefore, there is no reduction in strength due to the occurrence of a step in the joint.

Further, in a preferred embodiment of the present invention in which the inclination adjusting means for adjusting the inclination of the workpieces supplied from above is provided, when the upper workpiece is brought into contact with the lower workpiece. In addition, since the end surface of the upper material to be joined can be adjusted to a desired parallelism with respect to the end surface of the lower material to be joined, the two can be abutted in a state where they are uniformly adhered.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on embodiments with reference to the accompanying drawings, but the present invention is not limited to only such embodiments. Here, a case where the present invention is applied to diffusion bonding will be described as an example.

FIG. 1 is a schematic view showing a diffusion bonding apparatus according to an embodiment of the present invention. The diffusion bonding apparatus supplies a pipe (hereinafter, referred to as a material to be bonded) P to be diffusion bonded from above vertically. A so-called vertical diffusion bonding apparatus A configured to perform diffusion bonding, which includes a vertically movable upper block U for supplying a workpiece P, and a workpiece (upper workpiece) supplied by the upper block U. are made includes P ₁ and diffusion bonded by the bonding object and a lower block L which holds the (lower bonding object) P ₂ as main components.

The upper block U is provided with an upper block body 10.
A lifting / lowering / pressing mechanism 20 for raising / lowering and pressing the upper block main body 10, a first clamp mechanism (upper clamp mechanism) 30 disposed on the upper part of the upper block main body 10, A second clamp mechanism (lower clamp mechanism) 40 provided at a lower portion is a main component.

The elevating / lowering mechanism 20 is, specifically, a guide post 21 composed of four cylinders arranged in a rectangular shape on a base B, and a rectangular shape on the top of the guide post 21. Four main beams 22, and three sets of hydraulic cylinders 23 concentrically arranged at 120-degree intervals, that is, a first hydraulic cylinder 23A, a second hydraulic cylinder 23B, and a third hydraulic cylinder 23C. This hydraulic cylinder 2
A main beam (not clearly shown) joined in an appropriate configuration to the main beam 22 that holds the 3A, 23B, and 23C downward via the holding member 24 is a main component. Thus, by arranging the three sets of hydraulic cylinders 23 at equal intervals, three-point pressing is performed, and a uniform pressing force can be obtained on the circumference of the joining end surface of the workpiece P.

The first hydraulic cylinder 23A, the second hydraulic cylinder 23A
The hydraulic cylinder 23B and the third hydraulic cylinder 23C
For example, it is provided at a position corresponding to a joining member provided on an inner member of the upper block body 10 described later.
However, their arrangement is not limited to that position, but may be an appropriate position of the upper block main body 10.

The upper block body 10 includes an outer member 11
And an inner member 12 having a main part disposed inside the outer member 11 as a main member, and a horizontal position adjusting mechanism 13 for adjusting a horizontal position of the inner member 12.
And an inclination adjusting mechanism 14 for adjusting the inclination of the inner member 12.
And built-in.

The outer member 11 has the inner member 12 inside.
Is formed in a rectangular parallelepiped body which is notched with a predetermined width on one side and a space for storing the space. Guide post insertion portions 11a for slidably mounting the outer member 11 on the guide posts 21 are formed at four corners of the rectangular body. The upper end 11b and the lower end 11c of the guide post insertion portion 11a are projected at predetermined heights from the upper surface and the lower surface of the rectangular parallelepiped constituting the outer member 11, and the outer peripheral portion is also a rectangular parallelepiped. It protrudes in an arc shape from the corner (see FIG. 2). Further, the inner surface of the rectangular parallelepiped constituting the outer member 11 is cut out at a predetermined depth and a predetermined width, and the inner surface thereof has a groove-shaped space 1.
1d is formed.

A horizontal moving member 13a of the horizontal position adjusting mechanism 13 is provided in the grooved space 11d, and the upper and lower surfaces of the horizontal moving member 13a and the grooved space 11d of the outer member 11 are formed. In the gap between the ceiling and the bottom surface, a large number of bearing balls 13b are filled over the entire circumference so that the horizontal moving member 13a can move horizontally. In order to prevent the bearing balls 13b from dropping out of this gap, the horizontal moving member 1 is used.
The portions of the upper and lower surfaces 3a where the bearing balls 13b are filled are recesses of appropriate depth. In this case, as shown in FIG. 1, the groove-shaped space 11d of the outer member 11 is formed.
The portions of the ceiling and bottom surface where the bearing balls 13b are filled may be recesses having a width that ensures horizontal movement of the horizontal moving member 13a. The upper portion of the outer member 11 where the concave portion is formed is formed as a lid 11e and is separable. In addition, since the outer member 11 is configured as described above, filling of the bearing balls 13b and attachment of the horizontal moving member 13a are facilitated.

The horizontal movement of the horizontal moving member 13a is carried out by the outer member 11a as shown in FIGS.
This is provided by drive screw members 13c and 13d which are provided at appropriate positions on the short side surface and the long side surface, respectively, and whose distal ends are mechanically connected to the horizontal moving member 13a (see FIG. 5). For example, a driving screw member (X-axis direction driving screw member) 13 provided on the short side surface in FIG.
When the handle 13e is rotated in a predetermined direction to bring the tip of the driving screw member 13c into contact with the horizontal moving member 13a to further advance the driving screw member 13c, the horizontal moving member 13a is horizontally moved leftward in the drawing. Moving. Conversely, when the handle 13e is rotated in the reverse direction to retreat the driving screw member 13c abutting on the horizontal moving member 13a, the distal end of the driving screw member 13c connected to the horizontal moving member 13a also retreats. Therefore, the horizontal moving member 13a moves rightward in the figure. The handle 13f of the driving screw member (Y-direction driving screw member) 13d provided on the long side surface shown in FIG.
When the leading end of 3d is brought into contact with the horizontal moving member 13a and the driving screw member 13d is further advanced, the horizontal moving member 13a moves horizontally downward in the drawing as described above. Conversely, the handle 13f is rotated in the reverse direction to rotate the horizontal moving member 13a.
When the driving screw member 13d that is in contact with
As described above, the horizontal moving member 13a moves upward in the figure.

As shown in FIG. 2, in this embodiment, a driving screw member (Y-direction driving screw member) provided on the long side surface in consideration of the operability of the handle 13f.
A handle 13f of 13d is provided near a handle 13e of a drive screw member (X-direction drive screw member) 13c provided on the short side surface, and the drive screw member 1 is provided.
3d is rotated by the driving force transmission mechanism 13g.

A groove-like space 13h is provided in the lower inner surface of the horizontal moving member 13a. Above the groove-shaped space 13h, three flange members 12a formed on the side surface of the inner member 12 are provided with a predetermined gap from the ceiling of the groove-shaped space 13h. The three flange members 12a are each formed of a first flange member 12a ₁ formed so as to coincide with the Y-axis direction, and the first flange member 12a ₁
A second flange member 12a ₂ which are formed by providing a time interval is the third flange member 12a _3. Below the first flange member 12a ₁ , the second flange member 12a ₂ and the third flange member 12a _3, a first tilt adjusting member 14 of the tilt adjusting mechanism 14 is provided.
a ₁ , a second inclination adjusting member 14a ₂ and a third inclination adjusting member 14a ₃ are arranged in contact with the lower surfaces of the flange members 12a ₁ , 12a ₂ and 12a ₃ . Among the first to third tilt adjusting _{14a 1, 14a 2, 14a 3} , second tilt adjusting 14a ₂ and the third tilt adjusting 14a ₃ is a disk cam. Then, the disc cam is connected to the driving force transmission mechanism 14.
The tilt angle of the inner member 12 is adjusted by rotating the inner member 12 by a predetermined amount in a predetermined direction via b (see FIG. 5). In addition, the handle 14c of these driving force transmission mechanisms 14b
Are provided on the same long side surface in consideration of their operability (see FIG. 2).

The inner member 12 has circular through hole 12b for inserting the upper bonding object P ₁ is provided in the positions corresponding to the notches of the outer member 11 is notched in a fan, and the upper and lower surfaces As described above, the first flange member 12a ₁ and the second flange member 12 ₂ are formed in a hollow cylindrical body, and at a position corresponding to the groove-shaped space 13h of the horizontal moving member 13a on the side surface thereof.
And third flange members 12a ₃ is formed. further,
On the upper surface of the inner member 12, three joining members 12c for joining with the distal end of the piston rod 24 of the hydraulic cylinder 23 of the elevating / lowering mechanism 20 are provided concentrically at predetermined intervals. These three bonding member 12c includes a first joint member 12c ₁ is provided to match the Y-axis direction,
The first joint member 12c ₁ and the second joining members 12c ₂ and a 3 are provided at an angle of 120 degrees
It is joined member 12c _3.

Further, a first clamp mechanism (upper clamp mechanism) 30 and a second clamp mechanism (lower clamp mechanism) 40 are provided above and below the inner member 12, respectively. The first clamping mechanism 30 has been made to grip so that a predetermined holding force at the diffusion bonding the upper bonding object P ₁ is obtained, integrally with the inner member 12 and specifically, to match the Y-axis direction A first clamp claw 31 movably provided with respect to the upper workpiece P _{1 and} capable of moving back and forth, and each of the first clamp claws 31 form an angle of 120 degrees with the inner member 12 and are also integrally formed with the inner member 12. and a third clamp pawl 33 can freely advance and retreat with respect to the second clamping claw 32 and the upper bonding object P ₁ a movable forward and backward relative to the upper bonding object P ₁ which is movable in. The advance and retreat of the first clamp pawl 31, the second clamp pawl 32, and the third clamp pawl 33 are performed, for example, by being driven by a hydraulic cylinder 34 (see FIG. 1). When the first clamp pawl 31, the second clamp pawl 32, and the third clamp pawl 33 are driven by hydraulic cylinders, when each hydraulic cylinder 34 protrudes from the outer periphery of the inner member 12, these hydraulic pawls of the horizontal moving member 13a are used. A hydraulic cylinder storage space 13i is provided at a location corresponding to the hydraulic cylinder 34 (see FIG. 1).

The second clamp mechanism 40 is connected to the upper workpiece P _1.
The first clamp claw is provided so as to be able to move in the Y-axis direction and move integrally with the inner member, similarly to the first clamp mechanism 30. And the second clamp claw 42 and the third clamp claw 43, which are movable at an angle of 120 degrees with the first clamp claw and are also integrally movable with the inner member 12, respectively. Consists of In this case, the first
Each of the hydraulic cylinders 44 for driving the clamp claws, the second clamp claws 42, and the third clamp claws 43 is disposed so that the first hydraulic cylinder 44 is located below the bottom surface of the rectangular parallelepiped constituting the outer member 11.
The mounting positions of the clamp claws, the second clamp claws 42, and the third clamp claws 43 on the inner member 12 are adjusted. Here, these first clamping mechanism 30 the distance between the second clamping mechanism 40, more than three times the diameter of the bonding object P _1, is preferably more than five times. By providing such a gap, it is possible to almost no impact on the end surface deformation of the bonding material P ₁ in the gripping force of the first clamping mechanism 30.

By the way, as described above, this inner member 1
The 2, since the notches are provided in the fan-shaped opening increases in the notch portion by the reaction force when the first clamping mechanism 30 and the second clamping mechanism 40 clamping the upper bonding object P ₁ The deformation preventing mechanism 50A is provided at two upper and lower portions on the side surface of the notch. The deformation preventing mechanism 50A is specifically a hydraulic cylinder 51, and the base 52 of the hydraulic cylinder 51 is pivotally attached to one end of the notch, while the distal end of the piston rod 53 is connected to the other end. The first clamp mechanism 30 is stopped by its pulling force.
Further, the deformation of the inner member 12 at the time of clamping by the second clamp mechanism 40 is prevented.

The lower block L includes a lower block body 60.
A third clamping mechanism 70 disposed above the lower block body 60, an induction heating device 80 disposed above the lower block body 60, and an end face disposed on the side of the lower block body 60 The finishing device 90 is a main component. The end face finishing apparatus 90 mainly includes a workpiece P which is fed after finishing the end face.
Is to repair a flaw, such as a dent, generated in the middle of the conveyance on the end face of the sheet.

The lower block body 60 is a hat-shaped member 61 provided with a through hole 62 for inserting the material P to be joined at the center of the upper surface, and its flange 63 clamps the lower material P ₂ . Is mounted and fixed on the lower clamp device C which is mounted. A similar notch is formed at a position corresponding to the notch of the inner member 12 of the upper block body 60 of the hat-shaped member 61, and the third clamp mechanism 70 is connected to the lower joining material P _2. Deformation prevention mechanism 50 for preventing deformation of lower block body 60 when clamping
A deformation prevention mechanism 50B configured similarly to A is also provided at the upper part.

Like the first and second clamp mechanisms 30 and 40, the third clamp mechanism 70 has a first clamp claw 71 which can move in the Y-axis direction and can move forward and backward with respect to the lower workpiece. The first clamp claws 71 and 12
An angle of 0 degrees and a second clamp jaws 72 and the third clamp pawl 73 can freely advance and retreat with respect to the lower bonding object P ₂ in.

The induction heating device 80 has two main divided induction heating coils 81 and 82, and the divided induction heating coils 81 and 82 are disposed opposite to each other to form the lower block main body 60. It is held by a holding member 64 provided on the upper surface. In addition, the induction heating coils 81 and 82 can move forward and backward with respect to the material P to be joined. The induction heating coil 81, which is a two-piece body,
Regarding the specific configuration of the induction heating device 80 having the device 82, an earlier application filed by the present applicant (Japanese Patent Application No. 9-74582).
Are disclosed.

As shown in FIGS. 3 and 4, the end face finishing device 90 includes a rail 91 having a predetermined length mounted and fixed on the lower clamp device C toward the material P to be joined.
A radial traveling platform 92 that travels on the rail 91; and a radial traveling platform 92 provided on the radial traveling platform 92.
A traversing table 93 that travels at right angles to the traveling direction of the vehicle, an elevating member 94 that is provided at the front of the traversing table 93 so as to be able to move up and down, and is provided so as to project forward from the elevating member 94. An end face finishing mechanism 95 is provided.

As shown in FIG. 4, the end face finishing mechanism 95 includes a rotary finishing tool 96 provided with a cutting edge 97 at an upper end and a lower end, and a motor 98 for rotating the rotary finishing tool 96. And a rotational force transmitting means (not shown) including a timing belt for transmitting the rotational force of the motor 98 to the rotary finishing tool 96.
Are the main components.

Next, diffusion bonding by the vertical diffusion bonding apparatus A having such a configuration will be described. The following operations are performed by commands from a control device (not shown).

[0037] (1) the upper end of the lower welded material P ₂ to advance the end surface processing is performed positioned at a predetermined position, the third by a clamp mechanism 70 and the lower clamp device C of the lower block L.

[0038] (2) supplies material to be joined that are made in advance the end surface processing in the same manner by not shown welded material supply device (upper bonding object) P ₁ to the upper block body 10.

(3) Adjust the position of the supplied upper material P _{1 so that} the lower end of the material P ₁ protrudes from the bottom of the upper block body 10 by a predetermined length.

(4) Upper workpiece P after position adjustment
₁ is the first clamp mechanism 30 and the second clamp mechanism 40
To clamp.

[0041] (5) and a lifting-pressing mechanism 20 is operated a predetermined time, the upper block body 10 by a predetermined amount descending spacing of the upper bonding object P ₁ lower and lower bonding object P ₂ upper a predetermined amount .

[0042] (6) to check whether there is a scratch, such as dents on the end face and the end face of the lower bonding object P ₂ of the upper bonding object P ₁ visually or instrument. When a flaw such as a dent is found on the end face by this inspection, the flaw such as a dent is deleted by the following procedure. On the other hand, if no flaw such as a dent is found by this inspection, the procedure from (11) is executed.

(7) The radial traveling table 92 of the end face finishing apparatus 90 is driven to position the rotary finishing tool between the upper workpiece P ₁ and the lower workpiece P ₂ .

(8) The elevating member 94 is raised and lowered to set the rotary finishing tool 96 at a predetermined position in the vicinity of the end face of the material P to be welded such as a dent.

(9) Radial traveling platform 92 and traversing platform 9
3 is appropriately operated to repair the end face of the workpiece P having a flaw by the rotary finishing tool 96.

(10) When the repair processing of the end face of the workpiece P having the flaw is completed, the elevating member 94 is raised and lowered by a predetermined amount, and the radial traveling table 92 is driven to move the rotary finishing tool 96 to the upper workpiece. It is retracted from between the P ₁ and the lower bonding object P _2.

[0047] (11) is measured by the upper bonding object P ₁ and the lower bonding object P ₂ misalignment visual or instrument, the deviation by operating the horizontal position adjusting mechanism 13 as appropriate if misalignment Let go.

[0048] (12) is measured by the upper bonding object P ₁ lower and lower bonding object P ₂ upper visual or instrument a parallelism of the parallel predetermined inclination adjustment mechanism 14 appropriately operated to if not parallel Degree. The predetermined degree of parallelism is such that, for example, a desired degree of adhesion can be obtained by the pressing force of the first hydraulic cylinder 23A, the second hydraulic cylinder 23B, and the third hydraulic cylinder 23C described later.

[0049] (13) mounting the filler plates (not shown) to the end surface on the lower side welded material P _2.

[0050] (14) lifting-pressing mechanism 20 is driven by lowering the upper block body 10 is brought into contact with the lower end of the upper bonding object P ₁ on the upper end of the lower bonding object P ₂ in.

(15) The pressing force of the first hydraulic cylinder 23A, the second hydraulic cylinder 23B, and the third hydraulic cylinder 23C is increased to a predetermined pressing force. In this case, even if points that have some clearance contact portion between the upper end of the upper material to be joined P ₁ of the lower end and the lower bonding object P _2, the first hydraulic cylinder 2
3A, the balance of the pressing force of the second hydraulic cylinder 23B and the third hydraulic cylinder 23C, this clearance becomes automatically reduced, the upper bonding object P ₁ end face and the lower bonding object P ₂ end surfaces are uniformly close contact .

(16) The induction heating coils 81 and 82 of the induction heating device 80 are advanced toward the contact portions of the materials P ₁ and P ₂ to be integrated.

(17) Electric power is supplied to the induction heating coils 81 and 82 from a power supply (not shown) to heat the contact portions by induction for a predetermined time. Thereby, the contact portion is diffusion-bonded.

(18) When the diffusion bonding of the contact portion is completed,
The clamp of the workpiece P by the first clamp mechanism 30, the second clamp mechanism 40, the third clamp mechanism 70, and the lower clamp device C is released, and the workpiece P joined by a feeding device (not shown) is fed downward.

(19) When the upper end of the joined upper joining material P ₁ reaches a predetermined position above the lower block L, the feeding is stopped, and the third joining mechanism 70 and the lower clamping device C clamp the joining material P. .

Thereafter, the above procedure is repeated to obtain a pipe of a predetermined length.

[0057] Thus, according to this embodiment, since diffusion bonding in a state where the upper bonding object P ₁ and the lower bonding object P ₂ and 7 are uniformly close contact is made, uniform diffusion bonding Is made. Thereby, the joint can be made to have a desired strength.

As described above, the present invention has been described based on the embodiments. However, the present invention is not limited to only such embodiments, and various modifications are possible. For example, in this embodiment, diffusion bonding is described as an example, but the present invention can be applied to various types of bonding. The horizontal position adjustment mechanism and the tilt adjustment mechanism are manually operated, but may be driven by a motor.

[0059]

As described in detail above, according to the present invention, since the horizontal position adjusting means for adjusting the horizontal position of the material to be joined supplied from above is provided, the upper material to be joined is fixed to the lower material. It can be brought into contact with the joining material without horizontal displacement. Therefore, since there is no step at the joint, an excellent effect of preventing the strength from being reduced due to the step at the joint is obtained.

Further, in a preferred embodiment of the present invention in which the inclination adjusting means is provided, the end surfaces thereof can be adjusted to a desired degree of parallelism when the upper and lower members are brought into contact with each other. Therefore, an excellent effect that the bonding is performed in a state of being uniformly adhered is obtained. Further, thereby, an excellent effect that the joining portion can have a desired strength can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a diffusion bonding apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is a side view of the end face finishing apparatus.

FIG. 5 is an operation explanatory view of a horizontal position adjustment mechanism and an inclination adjustment mechanism.

FIG. 6 is an explanatory diagram showing a positional relationship between a hydraulic cylinder of a lifting / lowering / pressing means and a clamp mechanism in an inner member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Upper block main body 20 Lifting / pressing mechanism 30 1st clamp mechanism (upper clamp mechanism) 40 2nd clamp mechanism (lower clamp mechanism) 50 Deformation prevention mechanism 60 Lower block main body 70 3rd clamp mechanism 80 Induction heating device 90 End surface finishing Equipment A Vertical diffusion bonding equipment P Piping (material to be welded) U Upper block L Lower block B Base

Claims (10)

[Claims] 1. A joining device for supplying a material to be joined from above to below, wherein the joining device holds and holds a lower block for holding a lower material to be joined and an upper material to be joined. An upper block for pressing the upper material to be joined against the lower material to be joined, and a horizontal position adjusting means for adjusting the position of the upper material to be joined held by the upper block in a horizontal plane. Characteristic joining equipment. 2. The joining apparatus according to claim 1, wherein the upper block includes an inclination adjusting means for adjusting an inclination of the upper joining target material. 3. The upper block, which is capable of lifting and lowering an upper block body holding an upper workpiece, and presses the upper workpiece to be held and pressed against the lower workpiece while raising and lowering the upper block body. 2. The joining apparatus according to claim 1, further comprising a lifting / lowering / pressing means. 4. The upper block body includes an outer member,
4. The joining apparatus according to claim 3, further comprising an inner member holding an upper member to be joined, which is held inside the outer member so as to be horizontally movable and tilt-adjustable. 5. The apparatus according to claim 3, wherein said lifting / lowering means comprises three sets of hydraulic cylinders which are concentrically joined to said upper block body at intervals of 120 degrees. Joining equipment. 6. The apparatus according to claim 6, wherein said horizontal position adjusting means is mounted on said outer member so as to be capable of moving forward and backward, said horizontal moving member holding said inner member held horizontally by said outer member. A first drive screw member, and a second drive screw member attached to the outer member so as to be able to advance and retreat at 90 ° intervals with the first drive screw member, wherein the first drive screw member and / or 5. The joining apparatus according to claim 4, wherein the horizontal position of the inner member is adjusted by adjusting the driving amount of the horizontal moving member by the two drive screw members, thereby adjusting the horizontal position of the upper workpiece. . 7. The cylindrical member supporting the flange member provided on the outer periphery of the inner member rotatably held by the horizontal moving member, wherein the inclination adjusting means is connected to the cylindrical member by 120 degrees. A disc cam member supporting a flange member provided on an outer periphery of the inner member which is provided concentrically at an interval; and a driving mechanism for driving the disc cam member, The inclination of the upper joined material held by the inner member is adjusted by adjusting a height of the disk cam member supporting the flange member by a driving mechanism. Joining equipment. 8. An upper member provided with an upper member on which the inner member is disposed, and a lower clamp member disposed on a lower part thereof, wherein the upper clamp member allows the upper member to be joined with a desired gripping force. 5. The joining apparatus according to claim 4, wherein the lower clamp means prevents the joint end of the upper workpiece from being deformed. 9. The joining apparatus according to claim 8, wherein the distance between the upper clamp means and the lower clamp means is set to be three times or more the diameter of the upper workpiece to be clamped. 10. The apparatus according to claim 8, wherein the upper clamp means and the lower clamp means have a first claw block, a second claw block and a third claw block arranged at intervals of 120 degrees. The joining device according to the above.