Manufacturing apparatus, manufacturing system, and manufacturing method

Abstract

To provide a manufacturing device, a manufacturing system, and a manufacturing method capable of improving productivity.SOLUTION: A manufacturing apparatus according to the present disclosure includes a support mechanism configured to support a workpiece, and a pair of welding mechanisms configured to perform a welding process on the workpiece, wherein the workpiece has an object to be processed temporarily fixed thereto, and the pair of welding mechanisms are configured to perform a cooperative operation of performing the welding process on a front surface and a back surface of a temporary fixing member simultaneously in the same direction. A manufacturing method according to the present disclosure includes performing a cooperative operation on a workpiece having an object to be processed that is temporarily fixed, the cooperative operation including performing welding on a front surface and a back surface of the object to be processed simultaneously and in the same direction using a pair of welding mechanisms.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a manufacturing apparatus, a manufacturing system, and a manufacturing method, and more particularly to a manufacturing apparatus, a manufacturing system, and a manufacturing method for a fan provided in an oven apparatus. [Background technology]

[0002] Patent Document 1 discloses a laser processing system that uses a manipulator having a laser processing head to weld a workpiece. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 013171 Summary of the Invention [Problem to be solved by the invention]

[0004] The fan blades used for heat exchange, ventilation, and exhaust in the oven device are formed by temporarily welding multiple blades, for example, about eight, to the fan body (rotating shaft), then turning the fan body over and welding again.

[0005] This series of forming processes is mainly done by hand, and because the fan blades have a complex shape and are made by welding thin plates, the work must be carried out while making adjustments to prevent distortion, which poses a significant time-consuming challenge.

[0006] The present disclosure has been made to solve such problems, and aims to provide a manufacturing apparatus, a manufacturing system, and a manufacturing method that can improve productivity. [Means for solving the problem]

[0007] The manufacturing apparatus according to the present disclosure comprises a support mechanism for supporting a workpiece and a pair of welding mechanisms for performing welding processing on the workpiece, the workpiece having a temporarily fixed object to be processed, and the pair of welding mechanisms are configured to perform coordinated operations to perform welding processing on the front and back surfaces of the temporarily fixed member simultaneously and in the same direction.

[0008] The manufacturing system according to the present disclosure comprises a first processing mechanism that forms the workpiece before it is temporarily fixed, a second processing mechanism that temporarily fixes the workpiece to the workpiece, a first transport mechanism that transports the workpiece to which the workpiece is temporarily fixed, the manufacturing device, and a second transport mechanism that transports the workpiece to which the workpiece is fixed.

[0009] The manufacturing method disclosed herein uses a pair of welding mechanisms to perform coordinated operations on a workpiece having a temporarily fixed workpiece, performing welding simultaneously and in the same direction on the front and back surfaces of the workpiece. [Effects of the Invention]

[0010] The present disclosure makes it possible to provide a manufacturing apparatus, a manufacturing system, and a manufacturing method that can improve productivity. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram illustrating a configuration example of a manufacturing apparatus according to a first embodiment. [Figure 2] FIG. 1 is a diagram illustrating a configuration example of a fan according to a first embodiment. [Figure 3] 1A to 1C are diagrams illustrating a manufacturing method according to a first embodiment. [Figure 4] FIG. 10 is a block diagram of a manufacturing system according to a second embodiment. [Figure 5] FIG. 10 is a block diagram of a manufacturing system according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] <First Embodiment> Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Fig. 1 shows a manufacturing apparatus 10 according to this embodiment. The manufacturing apparatus 10 includes a pair of welding mechanisms 11A and 11B that perform welding processing on a workpiece 20, and a support mechanism 13 that supports the workpiece 20.

[0013] The pair of welding mechanisms 11A and 11B each include a robot arm, and welding torches 12A and 12B are provided at the tip of the robot arm.

[0014] The welding torches 12A and 12B may be compatible with CO2 arc, TIG (Tungsten Inert Gas) welding, MIG (Metal Inert Gas) welding, or MAG (Metal Active Gas) welding.

[0015] Furthermore, instead of the welding torches 12A and 12B, a laser processing head connected to a laser oscillator may be used, and CO2 laser, YAG (Yttrium Aluminum Garnet) laser, disk laser, semiconductor laser, or fiber laser welding may also be used.

[0016] In the configuration example shown in FIG. 1, at least two robot arms are provided, but the present invention is not limited to this and more than two robot arms may be provided.

[0017] The workpiece 20 that is the target of processing by the manufacturing device 10 can be a fan used in an oven device, etc. An example of the configuration of the fan will now be described with reference to FIG.

[0018] The workpiece 20 (fan) includes a rotating shaft 21 that serves as the fan body, and a plurality of workpieces 22 (blades), each of which is temporarily fixed to the rotating shaft 21 that serves as the fan body. Materials such as SUS and Al are used for the workpieces 22. The temporary fixing may be performed by temporary welding using a temporary fixing member, or by fitting by shrink fitting or press fitting.

[0019] The shape of the workpiece 22 (blade) may be not only a straight shape but also a curved shape with a constant curvature in the region where it is temporarily fixed to the fan rotation shaft 21. Furthermore, to improve the efficiency of heat exchange, air blowing, and exhaust, it may be a curved shape with a continuously changing curvature, for example.

[0020] The pair of welding mechanisms 11A and 11B are configured to perform a cooperative operation to perform welding simultaneously and in the same direction on the front and back surfaces of the workpiece 22 (blade). The cooperative operation will be described with reference to FIG.

[0021] Fig. 3(a) is a view of the workpiece 20 as seen from the side of the workpiece 22, and Fig. 3(b) is a view of the workpiece 20 as seen from above the workpiece 22. In Fig. 3(a) and (b), the left view shows the workpiece 20 during welding, and the right view shows the workpiece 20 after welding. Fig. 3 shows an example in which the workpiece 22 is temporarily fixed to the rotating shaft 21 by a temporary fixing member 23.

[0022] Welding torches 12A and 12B provided at the tips of a pair of welding mechanisms 11A and 11B perform welding on a front surface 22A and a back surface 22B of a workpiece 22, respectively.

[0023] The two robot arms provided in the pair of welding mechanisms 11A and 11B move welding torches 12A and 12B in a coordinated operation so as to simultaneously and in the same direction weld front surface 22A and back surface 22B of workpiece 22. In the example shown in Fig. 3(b), welding torches 12A and 12B are moved from the top to the bottom in the figure along the shape of workpiece 22. The movement speeds of welding torches 12A and 12B in the coordinated operation may be continuously changed depending on the shape, curvature, etc. of workpiece 22.

[0024] Furthermore, the above-described cooperative operation may not only be performed by the two robot arms of the pair of welding mechanisms 11A and 11B, but may also be combined with movement of workpiece 20 by support mechanism 13. For example, in accordance with the movement of the pair of welding mechanisms 11A and 11B, at least one of movement, rotation, and swing of workpiece 20 may be performed using support mechanism 13.

[0025] In this way, the front and back surfaces of the workpiece 22 can be welded simultaneously, which significantly reduces the time required for welding compared to welding one surface at a time. Furthermore, because the front and back surfaces can be welded simultaneously, even if the workpiece 22 is a thin plate, thermal distortion caused by welding can be canceled out, reducing distortion, thereby shortening the post-processing time.

[0026] The molding of workpieces, such as fan blades, is often done manually, which has led to the problem of time-consuming manufacturing, but by using the manufacturing device according to the present disclosure, it is possible to shorten the manufacturing time. Furthermore, since the variation in quality due to the worker can be suppressed, the quality of the workpieces can be made uniform.

[0027] <Embodiment 2> In this embodiment, a manufacturing system incorporating the manufacturing apparatus 10 described in embodiment 1 will be described. The manufacturing system 100 includes a first processing mechanism 101, a second processing mechanism 102, and a first conveying mechanism 103 upstream of the manufacturing apparatus 10, and at least a second conveying mechanism 104 downstream of the manufacturing apparatus 10.

[0028] The first processing mechanism 101 is a mechanism for forming the workpiece 22 (wing) before it is temporarily fixed. The workpiece 22 is formed by laser processing a flat plate and then pressing it to perform bending processing, or by pressing the flat plate to perform punching.

[0029] The second processing mechanism 102 is a mechanism that temporarily fixes the object 22 to the workpiece 20. The temporary fixing may be performed by first fixing the workpiece 20 at a predetermined location, then positioning the object 22, and then temporary welding using a temporary fixing member 23, or by fitting by press fitting.

[0030] The workpiece 20 with the workpiece 22 temporarily fixed thereto is transported by the first transport mechanism 103 to the manufacturing apparatus 10. Thereafter, the workpiece 20 is processed in the manufacturing apparatus 10 as described in the first embodiment to form the workpiece 20 with the workpiece 22 fixed thereto. The workpiece 20 with the workpiece 22 fixed thereto is transported by the second transport mechanism 104 to the next process, for example, an inspection process.

[0031] By systematizing the manufacturing process of the workpiece in this way, an automated manufacturing line can be obtained without human intervention, thereby improving productivity.

[0032] <Third Embodiment> In this embodiment, a form for carrying out a post-process of the manufacturing apparatus 10 described in embodiment 1 and / or the manufacturing system 100 described in embodiment 2 will be described. The adjustment mechanism 105 that carries out the post-process may be incorporated into the manufacturing system 100 as shown in FIG. 5(a), or may be provided downstream of the manufacturing apparatus 10 as shown in FIG. 5(b). Furthermore, as shown in FIG. 5(c), a small-scale manufacturing system 100 may be configured in which a first conveyance mechanism 103 and a second conveyance mechanism 104 that transfer the workpieces 22 to and from the manufacturing apparatus 10 are provided, and the adjustment mechanism 105 is provided downstream of these.

[0033] The adjustment mechanism 105 performs distortion correction and / or dynamic balance adjustment on the workpiece 22 manufactured by the manufacturing apparatus 10. Distortion correction is a process of using a press, hammer, or robot arm to relieve residual stress in the workpiece 22 and return any distorted parts to their original position.

[0034] Dynamic balance adjustment is the process of adjusting whether the blade rotates without eccentricity when the workpiece 22 is a blade. The adjustment mechanism 105 that performs dynamic balance adjustment includes a device that measures imbalance in the rotational motion and a robot arm that cancels the imbalance of the workpiece 22. The process of canceling the imbalance is performed, for example, by attaching a weight to the workpiece 22, and is performed manually or automatically.

[0035] In this way, it is possible to provide a manufacturing apparatus, a manufacturing system, and a manufacturing method that can improve productivity.

[0036] The present disclosure is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the present disclosure. [Explanation of symbols]

[0037] 10 Manufacturing equipment 11A, 11B Welding mechanism 12A, 12B welding torch 13 Support mechanism 20 Work 21 Rotation axis 22 Processing object 22A surface 22B back side 23 Temporary fixing member 100 Manufacturing Systems 101 1st processing mechanism 102 Second processing mechanism 103 First conveying mechanism 104 Second transport mechanism 105 Adjustment mechanism

Claims

1. a support mechanism for supporting the workpiece; a pair of welding mechanisms for welding the workpiece; The workpiece has a temporarily fixed object to be processed, The pair of welding mechanisms are configured to perform cooperative operations to perform welding on the front and back surfaces of the workpiece simultaneously and in the same direction. Manufacturing equipment.

2. the pair of welding mechanisms includes at least two robot arms; A welding torch is provided at the tip of the robot arm. The manufacturing apparatus according to claim 1 .

3. The support mechanism is configured to perform at least one of movement, rotation, and swinging with respect to the workpiece in accordance with the coordinated operation of the pair of welding mechanisms. The manufacturing apparatus according to claim 1 .

4. the workpiece is a fan, The object to be processed is a blade. The manufacturing apparatus according to claim 1 .

5. In the blade, a region that is temporarily fixed to the rotation shaft of the fan has at least one shape selected from the group consisting of a linear shape, a curved shape with a constant curvature, and a curved shape with a continuously changing curvature. The manufacturing apparatus according to claim 4.

6. a first transport mechanism that transports the workpiece to which the object to be processed is temporarily fixed; The manufacturing apparatus according to any one of claims 1 to 5, a second transport mechanism that transports the workpiece to which the object to be processed is fixed, Manufacturing system.

7. further comprising an adjustment mechanism configured to perform distortion correction and / or dynamic balance adjustment on the workpiece after the workpiece is transported by the second transport mechanism. The manufacturing system of claim 6 .

8. The straightening is performed by using a press, hammer, or robot arm to relieve residual stress in the workpiece and straighten out the distorted part; and / or the dynamic balance adjustment is performed by an instrument that measures imbalance in the rotational movement of the workpiece, and a robot arm that performs an operation to cancel the imbalance of the workpiece. The manufacturing system of claim 7 .

9. a first processing mechanism that forms the object before it is temporarily fixed; A second processing mechanism that temporarily fixes the object to the workpiece. The manufacturing system of claim 6 .

10. A pair of welding mechanisms is used to perform a cooperative operation of welding a workpiece having a temporarily fixed workpiece in the same direction on both the front and back surfaces of the workpiece at the same time. Manufacturing method.

11. In the welding process, the workpiece is supported by a support mechanism, The support mechanism performs at least one of movement, rotation, and swinging with respect to the workpiece in accordance with the coordinated operation of the pair of welding mechanisms. The method of claim 10.

12. the workpiece is a rotating shaft of a fan, The object to be processed is a blade. The method of claim 10.

13. In the blade, a region that is temporarily fixed to the rotation shaft of the fan has at least one shape selected from the group consisting of a linear shape, a curved shape with a constant curvature, and a curved shape with a continuously changing curvature. The method of claim 12.

14. Before the welding process, forming the object to be processed before being temporarily fixed; The object to be processed is temporarily fixed to the workpiece; transporting the workpiece to which the object to be processed has been temporarily fixed to the pair of welding mechanisms; The method according to any one of claims 10 to 13.

15. After the welding process, transporting the workpiece to which the object to be processed is fixed to a next process; The method according to any one of claims 10 to 13.

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