JP2000042761A - Friction welding equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability in attaching/detaching a work by arranging a pressing mechanism to effect the friction pressure welding of the work in a longitudinal condition. SOLUTION: A first spindle box 15a is movably installed on a first linear guide rail 12 provided on a forward side surface 11r of a base part 11b of an installation base 11, and a second spindle box 16a and a movable clamp 17 are movably installed on a second linear guide rail 13 provided on the forward side surface 11r. A fixing clamp 14 is fixed to the forward side surface 11r. Work holding arm parts of both clamps 14, 17 are arranged in a vertical direction. That is, the fixing clamp 14 and the movable clamp 17 are arranged in a longitudinal condition. The distance L from the center line L0 between spindle units 15, 16, which is the distance from works W1-W3 to a worker, and both clamps 14, 17 to an end face of a device on the worker side can be reduced to achieve the purpose.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a friction welding apparatus for welding works by a friction welding method.

[0002]

2. Description of the Related Art Conventionally, a friction welding method is well known as a technique for joining works. This is a method in which a workpiece to be joined is brought into contact, a relative motion is caused on the contact surface while applying pressure, and the vicinity of the joint surface is heated and pressed by friction heat generated. This friction welding method has features such as being able to perform welding between dissimilar metals, consuming less material and electricity, and being excellent in productivity and joining accuracy. At present, it is widely applied as a welding method for mass production, particularly to materials such as rods and pipes.

FIGS. 5 to 7 show three works W11 and W1.
2 shows a conventional friction welding apparatus for joining W13. FIG.
, The upper surface 30a of the equipment base 30 of the friction welding device
The first and second linear guides 34 and 40 extend in the longitudinal direction (Y direction) on the upper surface 30a. The first spindle unit 31 is a first linear guide 34
The second spindle unit 32 is installed on the second linear guide 40, and the two spindle units 31, 32 are movable along the linear guides 34, 40, respectively.

The first and second spindle units 31, 32 are provided with spindles 31a, 32a rotatably.
The spindles 31a, 32a are connected to the rotary servomotor 3 via gears 31c, 32c arranged in the spindle boxes 31b, 32b.
It is drivingly connected to 1d and 32d. Spindles 31a, 32
Chucks 31e and 32e are attached to the tip of a, and fix the works W12 and W13, respectively.

On the lower surfaces of the first and second spindle units 31, 32, arms 35, 39 projecting into the equipment base 30.
Is provided. Ball screws 37 and 38 as press-contact feed shafts driven by slide servomotors 36 and 41 are screwed to the arms 35 and 39. When the ball screws 37 and 38 are rotated forward and backward, the first and second spindle units 31 and 32 move in the Y direction by the propulsive force generated between the ball screws 37 and 38 and the arms 35 and 39.

[0006] A fixed clamp 42 and a movable clamp 43 for holding the work W11 are arranged between the first and second spindle units 31 and 32. The fixed clamp 42 has its legs 42 a fixed to the upper surface 30 a of the equipment base 30. As shown in FIG. 7, the fixed clamp 42 has a pair of holding arm portions 42b and 42c at the upper part. The holding arm portions 42b and 42c move in a direction (front-back direction) perpendicular to the Y direction with respect to the leg portion 42a to move the work W1.
1 is clamped and fixed.

The leg 43a of the movable clamp 43 is mounted on the second linear guide 40. The leg 43a of the moving clamp 43 is moved along the second linear guide 40 in the Y direction.
And is fixed at a predetermined position. As shown in FIG. 7, the movable clamp 43 has a pair of holding arm portions 43b and 43c at the upper part. Clamping arm 43b,
43c moves in the direction (front-rear direction) perpendicular to the Y direction with respect to the leg 43a, and pinches and fixes the work W11.

Then, the center axis L0 of the workpiece W11 clamped and fixed by the fixed clamp 42 and the movable clamp 43
Is the spindle 31 of the first and second spindle units 31 and 32
a, 32a, the center axes of the workpieces W12, W13 fixed to the chucks 31e, 32e (the spindles 31a, 32e).
a (center axis of a).

When performing friction welding of, for example, three works W11, W12 and W13 by the friction welding apparatus constructed as described above, first, as shown in FIG. 5 and FIG. Linear guides 34, 4
The workpieces W12 and W13 on both sides of the intermediate workpiece W11 are fixed to a fixed clamp 42 fixedly provided at a predetermined position between 0 and a movable clamp 43 movably disposed on the second linear guide 40, respectively. The spindles 31a and 32a are fixed to chucks 31e and 32e. The spindles 31a, 32a are respectively driven by the rotation servomotors 31d, 32d.
Are rotated, so that the workpieces W12, W13
Is rotated at a predetermined rotation speed.

The slide servo motor 3
When the ball screws 37 and 38 are driven to rotate in a predetermined rotation direction by the first and second spindle units 31 and 38, respectively.
32 is moved in parallel in the Y direction toward the work W11 via the arms 35 and 39, respectively. And
When the rotating works W12 and W13 are brought into contact with the non-rotating work W11 from both ends, frictional heat is generated at the joint between the work W11 and the work W12 and at the joint between the work W11 and the work W13. Work W1
The joint between W1, W12 and W13 is softened. When the upsetting is further applied while the rotation of the workpieces W12 and W13 is stopped after the softening is advanced to a desired state, the joints of the three workpieces W11, W12 and W13 are integrated and welded to each other as they sink into each other. You.

In the above friction welding step, the movement of the first spindle unit 31 (second spindle unit 32) and the upset pressure are all caused by the ball screw 37 (ball screw 3).
8), ie, the ball screw 3
7 (ball screw 38) rotates the ball screw 37.
This is realized by changing to a linear motion of the arm 35 (arm 39) screwed with the (ball screw 38). Therefore, during the friction welding operation, the ball screw 37
The (ball screw 38) and the arm 35 (arm 39) are frequently operated by the movement of the first spindle unit 31 (second spindle unit 32), and a large load is applied due to the application of the upset pressure. I have. As a result, the ball screw 37 (ball screw 38) and the arm 35
(Arm 39) ball screw 37 (ball screw 38)
Must always be inspected and maintained.

[0012]

As shown in FIG. 7, the holding arms 42b, 42 of the fixed clamp 42 are used.
c and the clamp arms 43b and 43c of the movable clamp 43
Are disposed in the front-rear direction with respect to the upper surface 30a of the equipment base 30. As shown in FIGS. 6 and 7, the clamping arms 42 b and 43 b on the front side of the fixed clamp 42 and the movable clamp 43 project outward from the front side surface of the equipment base 30. The clamp arms 42c and 43c on the rear side of the fixed clamp 42 and the movable clamp 43 project outward from the rear side surface of the equipment base 30.

The front and rear clamping arms 42b, 43b, 42c, 43 from the center axis L0 of the workpiece W11.
Assuming that the distance to the side end of c is L1, this distance L1 is a structurally necessary distance of the holding arms 42b, 42c of the fixed clamp 42 and the holding arms 43b, 43c of the movable clamp 43, and is shorter than that. I can't.

Therefore, the worker cannot approach any more due to the holding arms 42b and 43b projecting forward from the equipment base 30. As a result, the work of attaching and detaching the work W11 to and from the fixed clamp 42 and the moving clamp 43 is very troublesome and has a problem in workability.

Also, the first and second spindle units 31, 3
2 and ball screws 37 and 38 for moving
Arms 35 and 39 screwed to 7, 38 are attached to equipment base 3
Since it is located in the area 0, inspection and maintenance work cannot be performed directly from outside. Therefore, every time the inspection and maintenance work is performed, the spindle boxes 31b and 32b installed on the upper surface 30a of the equipment base 30 must be removed. As a result, the inspection and maintenance work of the ball screws 37, 38, the arm 35, and the arm 39 are very troublesome, and there is a problem in workability.

A first object of the present invention is to provide a friction welding apparatus capable of improving workability in work for mounting and removing a work. A second object of the present invention is to provide a friction welding apparatus capable of improving the workability of inspection and maintenance work in addition to the first object.

[0017]

According to a first aspect of the present invention, there is provided a friction welding apparatus for joining at least two or more works by friction welding. The gist is that a press-contact mechanism for press-welding is arranged in a vertical state.

According to a second aspect of the present invention, in the friction pressure welding device according to the first aspect, the back side of the equipment base in which the press-contact mechanism is disposed in a vertical state is directed toward a portion of the press-contact mechanism requiring maintenance. The gist is that it is open.

According to a third aspect of the present invention, in the friction welding apparatus according to the second aspect, a linear guide member extends laterally on a front side surface of the equipment base, and a spindle box is installed on the linear guide member. The gist of the invention is that the spindle box can be moved laterally along the front side surface of the equipment base.

According to a fourth aspect of the present invention, in the friction welding apparatus according to the second aspect, a pair of linear guide rails are extended horizontally and vertically in parallel on a front side surface of the equipment base. The gist of the present invention is that a spindle box is installed on the linear guide rail, and the spindle box can be moved laterally along the front side surface of the equipment base.

According to a fifth aspect of the present invention, in the friction welding apparatus according to the second aspect, a pair of linear guide rails are extended horizontally and vertically in parallel on a front side surface of the equipment base. The first and second linear guide rails
The gist of the invention is that a spindle box is installed and the first and second spindle boxes can be moved laterally along the front side surface of the equipment base.

(Operation) According to the first aspect of the present invention,
Since the press-contact mechanism is arranged in a vertical state, the protruding portion of the press-contact mechanism protrudes vertically. As a result, the distance from the workpiece to the worker can be significantly reduced compared to the corresponding distance of the prior art device. That is, the operator can further approach the work. As a result, the workability of the friction welding device can be improved.

According to the invention described in claim 2, according to claim 1
In addition to the operation of the prior art, it is possible to perform maintenance on the press-contact mechanism via a portion opened from the back side of the equipment base without removing the press-contact mechanism as compared with the prior art apparatus. As a result, the inspection and maintenance work of the friction welding device can be facilitated.

According to the third and fourth aspects of the present invention, the distance from the workpiece to the worker can be significantly reduced as compared with the corresponding distance of the prior art device, and
Without removing the spindle box or the like, maintenance on the press-contact mechanism can be performed through a portion opened from the opposite side of the spindle box, that is, from the back side of the equipment base. As a result, the workability of the friction welding device can be improved,
Inspection and maintenance work of the friction welding device can be facilitated.

According to the fifth aspect of the present invention, the distance from the workpiece to the worker can be greatly reduced as compared with the corresponding distance of the prior art device, and the first and second spindle boxes can be provided. Without removing, etc., the maintenance of the press-contact mechanism can be performed through the portions opened from the opposite sides of the first and second spindle boxes, that is, from the back side of the equipment base. As a result, workability of the friction welding device can be improved, and inspection and maintenance work of the friction welding device can be facilitated.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 to 4, the equipment base 11 of the friction welding device 10 according to the present embodiment includes four support parts 11 a and four support parts 11 a.
a on the one side (the right side in FIG. 2). In the present embodiment, the front surface 11r of the base portion 11b is a vertical surface, and
1r is the work surface.

FIG. 3 is a front view of the equipment base 11. As shown in FIG. 3, on both sides of a front side surface 11r of the base portion 11b, first and first rectangular rectangular portions are formed so as to open toward ball screws 18 and 20, which are portions requiring maintenance described later. Two through holes 11c and 11d are provided, respectively. The vertical gap between the two through holes 11c and 11d is formed at the same height. In addition, both through holes 11
The distance between c and 11d in the horizontal direction is the second distance from the first through hole 11c.
The through hole 11d is elongated. First and second through holes 11
A rectangular recess 11f is provided between c and 11d from the back surface 11e of the base 11b. Recess 11f
Are formed at the same height as the vertical space between the two through holes 11c and 11d.

Then, the first and second through holes 11c, 11d
And the concave portion 11f, the base portion 11b
Inside, four parallel wall parts 11g, 11h, 1
1j and 11k are formed. In each of the wall portions 11g to 11k, through holes 11m, 11n, 11
o and 11p are provided respectively.

As shown in FIGS. 1 to 4, a first through hole 11c is formed in a front side surface 11r of the base portion 11b.
A first linear guide rail 12 as a linear guide member composed of two tracks parallel to each other is provided so as to extend on the upper and lower sides of the first linear guide rail.

Similarly, the front side surface 11 of the base 11b
r, a second linear guide rail 13 as a linear guide member comprising two tracks parallel to each other so as to be positioned on the upper and lower sides of the second through hole 11c and the concave portion 11f.
Are provided to extend in the lateral direction. In the first and second linear guide rails 12, 13, the interval between the pair of upper and lower first linear guide rails 12 matches the interval between the pair of upper and lower second linear guide rails 13, and passes through an intermediate position between the intervals. It is installed so that the middle lines coincide. In addition, the first and second linear guide rails 12, 1
3 is the intermediate line and the through holes 11m, 11n, 11
It is installed so that the surface passing through the central axis of o, 11p is a horizontal plane.

Further, as shown in FIG. 1, both linear guide rails 1 are provided on the front side surface 11r of the base portion 11b.
A fixed clamp 14 that constitutes a pressure contact mechanism is fixed at a predetermined position between the second and third clamps. The fixed clamp 14 has its leg 14a fixed to the front side surface 11r. The fixed clamp 14 includes a pair of holding arm portions 14b and 14c. Upper clamping arm 14b and lower clamping arm 1
4c are arranged side by side with respect to the front side surface 11r of the equipment base 11 in a direction (vertical direction) orthogonal to the longitudinal direction (Y direction). The holding arms 14b and 14c move in a direction (vertical direction) orthogonal to the Y direction to hold and fix the work W3.

A moving clamp 17 is provided on the second linear guide rail 13, and the leg 17a of the moving clamp moves in the Y direction along the second linear guide rail 13 and is fixed at a predetermined position. . The moving clamp 17
A pair of holding arms 17b and 17c are provided.

The upper holding arm 17b and the lower holding arm 17c are arranged side by side in the vertical direction perpendicular to the Y direction with respect to the front side surface 11r of the equipment base 11. Then, the holding arms 17b and 17c move in the vertical direction perpendicular to the Y direction to hold and fix the work W3.

As shown in FIGS. 1 and 4, on the first linear guide rail 12, a first spindle box 15a of a first spindle unit 15 constituting a press-contact mechanism is movably installed.

The first main shaft unit 15 is provided with a main shaft 15b rotatably. The spindle 15b is drivingly connected to a rotation servomotor 15d fixed on the first spindle box 15a via a gear 15c disposed in the first spindle box 15a. A chuck 15e for holding and fixing the work W1 is attached to the tip of the main shaft 15b. The work W1 pinched and fixed by the chuck 15e is
The center axis of the work W3 coincides with the center axis L0 of the work W3 clamped and fixed by the fixing and moving clamps 14, 17.

As shown in FIG. 4, an arm 15g protrudes from a rear side surface 15f of the first spindle box 15a. When the first spindle box 15a is mounted on the first linear guide rail 12 so as to be movable from the side, the arm 15g is provided inside the first through hole 11c of the equipment base 11. .

A through hole 15h is provided at the tip of the arm 15g. The through hole 15h is provided in the through hole 11
ball screw 18 rotatably supported by m, 11n
Is screwed. Therefore, when the ball screw 18 is rotated, the arm 15g (the first spindle box 15a) linearly moves along the ball screw 18 (the first linear guide rail 12).

The base end of the ball screw 18 is drivingly connected to a rotating shaft of a servo motor 19 fixed on the left side surface of the base portion 11b. Second linear guide rail 13
The second spindle box 16a of the second spindle unit 16 that constitutes the press-contact mechanism is movably mounted on the above. In the second spindle unit 16, a spindle 16b is rotatably provided. The spindle 16b is drivingly connected to a rotation servomotor 16d fixed on the second spindle box 16a via a gear 16c arranged in the second spindle box 16a.
A chuck 16e for holding and fixing the work W2 is attached to the tip of the main shaft 16b. And the chuck 16
The center axis of the work W2 clamped and fixed by e is aligned with the center axis L0 of the work W3 clamped and fixed by the fixing and moving clamps 14 and 17.

The rear surface 16 of the second spindle box 16a
At f, an arm 16g is formed so as to protrude. When the second spindle box 16 a is movably mounted on the second linear guide rail 13, the arm 16 g is provided inside the second through hole 11 d of the equipment base 11.

At the tip of the arm 16g, a through hole 16h is provided. The through hole 16h is provided in the through hole 11
ball screw 20 rotatably supported by m and 11n
Is screwed. Therefore, when the ball screw 20 is rotated, the arm 16g (the second spindle box 16a) linearly moves along the ball screw 20 (the second linear guide rail 13).

The base end of the ball screw 20 is drivingly connected to a rotary shaft of a servomotor 21 fixed to the right side of the base 11b. Next, the operation of the friction welding device 10 configured as described above will be briefly described.

The friction welding apparatus 10 can simultaneously friction weld three workpieces integrally. For example, three works W1, W2, W3
First, as shown in FIGS. 1 and 4, the intermediate workpiece W3 is fixed to the fixed clamp 14 as shown in FIGS.
And, it is clamped and fixed by the moving clamp 17. In this case, the position of the moving clamp 17 is changed according to the length of the work W3.
The adjustment is performed by moving the movable clamp 17 on the second linear guide rail 13. That is, the work W3
Of the workpiece W3 is clamped and fixed, and then the clamping position of the other end of the work W3 is adjusted and the movable clamp 17 is clamped.
And fix it. Further, the work W1 is clamped and fixed to the chuck 15e of the first spindle unit 15, and the work W2 is fixed.
Is clamped and fixed to the chuck 16e of the second spindle unit 16.

Then, the work W1 is rotated at a predetermined number of revolutions by rotating the main shaft 15b by the rotation servomotor 15d. In addition, the first main spindle unit 15 is rotated in a predetermined rotational direction by the slide servomotor 19 by the ball screw 18 so that the first main spindle unit 15 moves in the central axis direction (Y direction) of the main spindle 15b toward the work W3 together with the arm 15g. Translated. Then, when the rotating work W1 is brought into contact with the non-rotating work W3, frictional heat is generated at the joint between the two works W1 and W3, and the frictional heat softens the joint between the two works W1 and W3. . When the upsetting is further applied while the rotation of the work W1 is stopped after the softening is advanced to a desired state, the joints of the two works W1 and W3 are integrated and welded so as to be engaged with each other.

On the other hand, at the same time, the work W2 is rotated at a predetermined number of revolutions by rotating the main shaft 16b by the rotation servomotor 16d. The second spindle unit 16 is rotated in a predetermined rotation direction by the slide servomotor 21 by the ball servo 20 so that the second spindle unit 16 moves in the central axis direction (Y direction) of the spindle 16b toward the workpiece W3 together with the arm 16g. Translated. Then, when the rotating work W2 is brought into contact with the non-rotating work W3, the two works W2, W
No. 3 generates frictional heat, and the frictional heat softens the joint between the two works W2 and W3. When the upsetting is further applied while the rotation of the work W2 is stopped after the softening is advanced to a desired state, the joined portions of the two works W2 and W3 are integrated and welded so as to be entangled with each other. Then, the works W1, W2, W3 are integrally joined.

Next, the features of the friction welding device 10 of the present embodiment configured as described above will be described. (1) In the present embodiment, the first spindle box 15a of the first spindle unit 15 is movably mounted on the first linear guide rail 12 provided on the front side surface 11r of the base portion 11b of the equipment base 11. The second spindle box 16a of the second spindle unit 16 is movably mounted on a second linear guide rail 13 provided on the front side surface 11r of the base portion 11b of the equipment base 11. That is, the sliding portions of the first and second spindle boxes 15a and 16a are arranged on the front surface of the equipment base 11. That is, the first and second spindle boxes 15a and 16a constituting the press-contact mechanism are arranged so as to be in a vertical state.

In this embodiment, the fixed clamp 14
Is fixed to the front side surface 11r of the base portion 11b of the equipment base 11, and the moving clamp 17 is movably mounted on a second linear guide rail 13 provided on the front side surface 11r of the base portion 11b of the equipment base 11. I have. Then, as shown in FIG. 4, the work clamping arms 14b, 14c, 17b, 17c of the clamps 14, 17 are respectively arranged vertically. That is, the fixed clamp 14 and the movable clamp 17 that constitute the press-contact mechanism are arranged so as to be in a vertical state.

Therefore, as shown in FIG.
The distance L from the central axis L0 of the first and second spindle units 15, 16 and the center axis L0 of the fixed clamp 14 and the moving clamp 17 to the operator's side of the apparatus, which means the distance from W3 to the operator, is the fixed and moving clamp 14 , 17 overhang in the vertical direction and do not overhang forward, so that the distance can be greatly reduced as compared to the corresponding distance L1 of the prior art device shown in FIG. In other words, the operators W1 to W1
W3 can be approached. As a result, the operator can easily perform the work of mounting or removing the workpieces W1 to W3 on the first and second spindle units 15, 16 and the clamps 14, 17. That is, the workability of the friction welding device 10 can be improved.

(2) In the present embodiment, the first spindle box 15a of the first spindle unit 15 can move on the first linear guide rail 12 provided on the front side surface 11r of the base portion 11b of the equipment base 11. The second spindle box 16a of the second spindle unit 16 is movably installed on a second linear guide rail 13 provided on a front side surface 11r of a base portion 11b of the equipment base 11. First spindle unit 15 screwed with arm 15g of first spindle box 15a
Is disposed between the through holes 11m and 11n of the base portion 11b. Second spindle unit 16 screwed with arm 16g of second spindle box 16a
Is disposed between the through holes 11o and 11p of the base portion 11b.

Further, as shown in FIG.
On both sides of the front side surface 11r of 1b, first and second rectangular through holes 11c and 11d in the horizontal direction are provided, respectively.

Therefore, when inspecting and maintaining the ball screws 18, 20, the first and second spindle boxes 15a, 16
a and without removing the first and second spindle boxes 15a, 16a.
From the opposite side of the equipment base 11, ie, from the back side of the equipment base 11,
Inspection and maintenance work can be performed through the through hole 11d. As a result, inspection and maintenance work of the friction welding device 10 can be easily performed.

The embodiment of the present invention may be modified as follows. ○ The clamp structure, rotary structure, main shaft drive structure, slide structure and control method which are other specific press-contact mechanisms as described in the above-described embodiment, (single-head, double-head) work type, and the like are all limited. However, the present invention can be applied to friction welding devices having various structures. For example, the servomotors 15d and 16d for rotating and driving the spindles 15b and 16b of the first and second spindle units 15 and 16 may be replaced with ordinary motors. Further, the ball screws 18, 20 for driving the first and second spindle boxes 15a, 16a of the first and second spindle units 15, 16 for horizontal movement and the servomotors 19, 21 are implemented as hydraulic cylinder drive mechanisms. Is also good. In this case, the same effect as in the above embodiment can be obtained.

The opening shape, the number of openings, and the opening structure on the back side of the equipment base as described in the above embodiment are not particularly limited as long as maintainability is obtained. For example, the recess 11f provided between the first and second through holes 11c and 11d is omitted, or the first and second through holes 11c and 11d are
and f may communicate with each other to form one through hole.
Further, three or more through holes may be provided. 1st, 2nd
Instead of the through-holes 11c and 11d, for example, a support may be provided between plate materials. In short, it is only necessary to have a space that is continuous with the outside so that a part requiring maintenance can be easily worked from the outside.

The vertical cross-sectional shape of the first and second through holes 11c and 11d and the concave portion 11f provided in the base portion 11b is not limited to a rectangular shape, but may be a circular shape, an elliptical shape, or a polygonal shape other than a rectangular shape. It may be.

○ Further, the first and second through holes 11c, 11
d and the recess 11f may be omitted. in this case,
Although the maintainability of the friction welding apparatus is not different from the conventional one, the effect of improving workability can be obtained.

In the above embodiment, the first and second spindle units 15 and 16 are operated (synchronized) simultaneously. However, the first and second spindle units 15 and 16 are operated separately. May be. In this case, the same effect as in the above embodiment can be obtained.

In the above embodiment, the arms 15g, 16
g was formed so as to protrude from the rear side surfaces 15f, 16f of the first and second spindle boxes 15a, 16a, respectively. However, the arms 15g, 16g were separately provided, and the first and second spindle boxes 15a, 16a were respectively formed. You may implement so that it may be fixed to back side surface 15f, 16f. In this case, the same effect as in the above embodiment can be obtained.

As shown in FIG. 4, the opening of the first and second through-holes 11c and 11d on the back side of the apparatus is respectively 2.
The first and second dustproof covers 11 s and 11 t indicated by dotted lines may be provided so as to be openable and closable. In this case, the same effect as in the above embodiment can be obtained.

Omission of one of the first and second spindle units 15 and 16, ie, one spindle unit 1
5 (or the spindle unit 16). In this case, the same effect as in the above embodiment can be obtained.

○ Fixed clamp 14 and movable clamp 17
Any one of the above may be omitted. The first and second linear guide rails 12 and 13 may each be composed of one track. Further, the linear guide member may be implemented by a V-shaped groove other than the guide rail.

In the above embodiment, the "vertical state" in which the press-contact mechanism is arranged is not limited to a completely vertical state, but also includes a case where the press-contact mechanism is inclined in the front-rear direction (equipment base) from the vertical. In addition, a mechanism for arbitrarily adjusting the inclination angle of the pressing mechanism may be provided.

[0061]

As described above in detail, according to the first aspect of the present invention, the workability of the friction welding device can be improved.

According to the second to fifth aspects of the present invention, inspection and maintenance of the friction welding device can be facilitated, and workability can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of a friction welding apparatus according to an embodiment.

FIG. 2 is a right side view of the friction welding device in FIG. 1;

FIG. 3 is a front view of an equipment base of the friction welding apparatus.

FIG. 4 is a plan view of the friction welding device.

FIG. 5 is a front view of a conventional friction welding apparatus.

FIG. 6 is a left side view in FIG. 5 of a conventional friction welding apparatus.

FIG. 7 is a plan view of a conventional friction welding device.

[Explanation of symbols]

10: friction welding device, 11: equipment base, 12, 13 ...
Linear guide rails as linear guide members, 14 ...
Fixed clamps 14b, 14c, 1 that constitute a pressure contact mechanism
7b, 17c: Work clamping arm, 15a, 16a ...
First and second spindle boxes constituting a press-contact mechanism, 15g, 16
g: arm, 17: moving clamp constituting a press-contact mechanism,
18, 20: ball screw, 19, 21: servo motor,
W1 to W3 ... work.

Continuation of the front page (72) Inventor Osamu Ishikawa 1-3-3 Shimizu, Kitazaki-cho, Obu-shi, Aichi F-term industry F-term (reference) 4E067 BG02 CA01 CA04 EC05 EC06

Claims (5)

[Claims] 1. A friction welding apparatus for joining at least two or more workpieces by friction welding, wherein a welding mechanism for friction welding the workpieces is arranged in a vertical state. 2. The friction pressure welding device according to claim 1, wherein the back side of the equipment base in which the pressure welding mechanism is arranged in a vertical state,
A friction welding device, which is open toward a part of the pressure contact mechanism requiring maintenance. 3. The friction welding apparatus according to claim 2, wherein a linear guide member extends laterally on a front side surface of the equipment base, and a spindle box is installed on the linear guide member. A friction welding device characterized in that it can be moved laterally along the front side surface of the equipment base. 4. The friction pressure welding device according to claim 2, wherein a pair of linear guide rails extend laterally and vertically parallel to a front side surface of the equipment base, and the main body box is attached to the pair of upper and lower linear guide rails. Wherein the spindle box is disposed so as to be movable laterally along the front side of the equipment base. 5. The friction pressure welding device according to claim 2, wherein a pair of linear guide rails extend laterally and vertically in parallel on a front side surface of the equipment base, and a first linear guide rail is provided on the pair of upper and lower linear guide rails. And the second spindle box is installed and the first
And a second spindle box that can be moved laterally along a front side surface of the equipment base.