KR101740582B1 - Fusion apparatus - Google Patents

Fusion apparatus Download PDF

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Publication number
KR101740582B1
KR101740582B1 KR1020150160187A KR20150160187A KR101740582B1 KR 101740582 B1 KR101740582 B1 KR 101740582B1 KR 1020150160187 A KR1020150160187 A KR 1020150160187A KR 20150160187 A KR20150160187 A KR 20150160187A KR 101740582 B1 KR101740582 B1 KR 101740582B1
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South Korea
Prior art keywords
light source
reflectors
center
reflector
reflecting surface
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KR1020150160187A
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Korean (ko)
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KR20170056854A (en
Inventor
김정훈
성시면
전희태
김진환
김규완
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에스엘 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The present invention relates to a deposition apparatus, and more particularly, to a deposition apparatus for depositing different components using optical energy, comprising: a plurality of light sources for generating optical energy; Wherein each of the plurality of reflectors has a shape of a free-form surface based on an ellipse or an ellipse, and each of the plurality of reflectors has a shape of a free-form surface based on an ellipse or an ellipse, Such that at least one of the shared focus or focal point is the welding position of the different parts.

Description

Fusion apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a welding apparatus, and more particularly, to a welding apparatus for welding different synthetic resin products using heat generated from light emitted from a light source.

Generally, the vehicle is equipped with various kinds of lamps having a lighting function for easily confirming an object located in the vicinity of the vehicle at nighttime driving, and a signal function for notifying other vehicle or road users of the running state of the vehicle.

For example, a head lamp and a fog lamp mainly for lighting function, a turn signal lamp, a tail lamp, a brake lamp, A brake lamp, a side marker lamp, and the like. Such a lamp for a vehicle is regulated by laws and regulations for its installation standards and specifications so that each function can be fully exercised.

Such lamps include synthetic resin products such as a housing, a bezel, and a reflector molded mainly of a synthetic resin material, and these synthetic resin products may be made of a single product by welding different synthetic resin products.

That is, when injection molding is difficult by a single injection molding machine due to its complex shape, one of the synthetic resin products and the other synthetic resin product are respectively injection molded, and then heat is applied to the connecting portions of different synthetic resin products, The joints are melted and then solidified to form a synthetic resin product.

Further, even in the case of a synthetic resin product having different material components, injection molding is performed on each of the synthetic resin products, and then heat is applied to the joint portions of different synthetic resin products to melt the joint portions and then solidify, It also produces.

Conventionally, the conventional welding apparatus for melting different synthetic resin products to provide different products of synthetic resin has been developed. In the conventional welding apparatus, however, the efficiency of condensation of the light generated from the light source and focused by the reflector It is disadvantageous in that the deposition performance is low.

Japanese Laid-Open Patent Publication No. 2004-039599 (Feb. Japanese Laid-Open Patent Publication No. 1998-166453 (Jun. 23, 1998)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a welding apparatus in which welding efficiency is greatly improved by enhancing the efficiency of condensing light emitted from a plurality of light sources near a focal point as a welding point.

Particularly, the present invention provides a welding apparatus capable of improving the welding performance by maximizing the efficiency of converging light by setting the radius of curvature of the reflector reflecting surface and the position of the light source to be a focal point to be welded.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a deposition apparatus for depositing different components using optical energy, comprising: a plurality of light sources for generating optical energy; Wherein each of the plurality of reflectors has a shape of a free-form surface based on an ellipse or an ellipse, and each of the plurality of reflectors has a shape of a free-form surface based on an ellipse or an ellipse, And the at least one shared focal point or focal point can be the welding position of the different parts.

Wherein each of the reflection surfaces of the plurality of reflectors has the same radius of curvature and each reflection surface of the plurality of reflectors can be brought into contact with each other at the same angle with each other.

A heat radiating fan for discharging heat generated from the light source to the outside may be mounted on at least one circumferential surface of the circumferential surfaces of the plurality of reflectors.

A heat dissipation fin may be formed on at least one of circumferential surfaces of the plurality of reflectors.

Preferably, the light intensity value of the light that is generated from the light sources and is reflected by the reflection surface of the reflectors and is condensed near the focal point or the focus is 20,000 cd or more.

A ratio of a straight line distance between the center of the light source and a center point at which a radius of curvature starts at the reflecting surface of the reflector and a straight line distance from the center of the light source to the reflecting surface in a direction perpendicular to the optical axis direction is 1: .

The light source may be a halogen lamp.

Other specific details of the invention are included in the detailed description and drawings.

According to the deposition apparatus according to the embodiment of the present invention, the efficiency of condensing the light emitted from the plurality of light sources near the focal point, which is the fusing point, is improved, and the deposition performance can be greatly increased.

Particularly, according to the welding apparatus according to the embodiment of the present invention, the radius of curvature of the reflector reflecting surface and the efficiency of condensing by the focal point to be welded according to the position setting of the light source are maximized, Effects can be provided.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a perspective view of a deposition apparatus according to an embodiment of the present invention;
FIG. 2 is a perspective view of a state in which the arm member is removed in FIG. 1; FIG.
Figure 3 is an exploded perspective view of Figure 2;
Fig. 4 is a perspective view showing the position of the light source exposed by removing the reflector in Fig. 2; Fig.
5 is a rear perspective view showing a relationship in which a light source is disposed on a reflecting surface of a reflector in a welding apparatus according to an embodiment of the present invention.
Figure 6 is a front view of Figure 5;
FIG. 7 is an exploded perspective view of FIG. 5; FIG.
8 is a schematic view showing a relationship in which a center of a light source for a reflector is located in a deposition apparatus according to an embodiment of the present invention.
9 is a graph graphically showing luminous intensity values according to the straight line distance from the center of the output reference first light source to the reflector reflection surface in a direction perpendicular to the optical axis direction.
FIG. 10 is a graph showing a luminous intensity value according to the center of an output reference second light source and a linear distance to a reflector reflecting surface in a direction perpendicular to the optical axis direction.
11 is a view showing a positional relationship of a light source with respect to a radius of curvature of a reflector reflection surface according to an output reference first light source and a second light source.
12 is a graph showing a relationship between a straight line distance from the center of the light source to the center point where the radius of curvature of the reflector starts, and a straight line distance from the center of the light source in a direction perpendicular to the optical axis direction to satisfy the minimum light quantity required by the welding apparatus according to the embodiment of the present invention. And the ratio of the straight line distance to the reflecting surface.
13 is a perspective view of a welding apparatus according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Thus, in some embodiments, well known process steps, well-known structures, and well-known techniques are not specifically described to avoid an undue interpretation of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It should be understood that the terms comprising and / or comprising the terms used in the specification do not exclude the presence or addition of one or more other components, steps and / or operations other than the stated components, steps and / . And "and / or" include each and any combination of one or more of the mentioned items.

Further, the embodiments described herein will be described with reference to the perspective view, cross-sectional view, side view, and / or schematic views, which are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Therefore, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the forms that are generated according to the manufacturing process. In addition, in the respective drawings shown in the embodiments of the present invention, the respective constituent elements may be somewhat enlarged or reduced in view of convenience of description.

Hereinafter, preferred embodiments of the deposition apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a deposition apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view of a state in which an arm member is removed in FIG. 1, and FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is a perspective view showing the position of the light source exposed by removing the reflector in FIG. 2, and FIG. 5 is a view showing a relationship in which the light source is disposed on the reflecting surface of the reflector in the welding apparatus according to the embodiment of the present invention. It is a rear perspective view.

6 is a front view of FIG. 5, and FIG. 7 is an exploded perspective view of FIG. 5. FIG.

1 to 7, a deposition apparatus 100 according to an embodiment of the present invention may include a plurality of light source modules 200 including a light source 250 and a reflector 220, And thus may include a plurality of light sources 250 and a plurality of reflectors 220.

Here, the plurality of reflectors 220 are each formed with a reflection surface 222 having a radius of curvature in the horizontal direction and the vertical direction, respectively, and the light sources 250 may be disposed at positions facing the respective reflection surfaces 222 .

Accordingly, the plurality of reflectors 220 may be provided in a number corresponding to the number of the plurality of light sources 250. Light generated from the plurality of light sources 250 may be reflected by the reflecting surfaces 222 of the reflectors 220, and then condensed to a single focal point.

For reference, as the light source 250 applied to the deposition apparatus 100 according to the embodiment of the present invention, a halogen material is injected into the glass bulb to further suppress the evaporation of tungsten, thereby emitting brighter and brighter light than incandescent bulbs A long halogen lamp, a small size, and a light halogen lamp can be applied.

In the deposition apparatus 100 according to the embodiment of the present invention, all three light sources 250 are provided, and accordingly, all three reflectors 220 may be provided. Therefore, when three reflectors 220 are provided because the reflection surfaces 222 of the reflectors 220 are in contact with each other at the same angle, the neighboring reflectors 220 can each attain 120 degrees.

The reflecting surfaces 222 of the reflectors 220 are in surface contact with each other to form a single reflecting surface 222, (See Figs. 5 and 6)

The light emitted from each light source 250 is reflected by the reflecting surfaces 222 of the respective reflectors 220 and then passes through the light passing holes (not shown) It can be condensed.

As shown in FIG. 3, flanges 210 are provided on the outer sides of the portions of the plurality of reflectors 220 opposed to the portions where the reflecting surfaces 222 are formed. The flanges 210 are formed as shown in FIGS. 2 and 3 As shown, by being coupled by one connection bracket 122, a plurality or three reflectors 220 can be joined together in the lateral direction.

The connecting bracket 122 is coupled to the arm member 110 by the upper end of the connecting shaft 120 so that the plurality of reflectors 220 It is possible to move up, down, left, and right simultaneously in one set.

A plurality of light sources 250 may be arranged to penetrate each reflector 220 so as to face each of the reflective surfaces 222 of each reflector 220, Likewise, each of the light sources 250 may be coupled to the sockets 240, respectively. In this case, the light source 250 and the socket 240 are heated by the light generated from the light source 250, and if the heat generation amount is large, the life of the light source 250 and the socket 240 may be shortened, A heat dissipating fan 260 may be installed on one side of the socket 240 to dissipate the generated heat to the outside.

As shown in FIGS. 1 to 3 and 5 to 7, a heat radiating fan (not shown) for discharging heat generated from the light source 250 to the outside of any of the circumferential surfaces of the reflector 220, (270) may be further provided.

7, a communication hole 202 for communicating with a space where the light source 250 is disposed is formed at one side of the circumferential surface of the reflector 220, and a seating groove 204 (see FIG. 7), which is in communication with the communication hole 202, And a heat dissipating fan 270 may be installed in the mounting recess 204. [

A controller (not shown) for controlling on / off of the light sources 250 or controlling on / off of the heat dissipation fans 260 and 270 may be disposed on the arm member 110. The controllers and the light sources 250 And the heat dissipation fans 260 and 270 may be electrically connected to each other by electric wires or the like that can pass through the connection bracket 122. [

The operation of the deposition apparatus 100 having the above-described structure will be schematically described below.

First, when the welding apparatus 100 constituting one set is moved to the set position by the upward / downward / leftward / right movement of the arm member 110 and then the respective light sources 250 are turned on by the control signal of the controller, The light generated from each light source 250 is reflected by each reflection surface 222 of the reflectors 220, passes through the light passing holes, and converged in the vicinity of the focal point, which is the fusion point.

As the fusion point is melted due to the heat generated by the condensed light, the different synthetic resin products can be bonded like a single product.

At this time, when the amount of heat generated by the light generated from the light sources 250 is equal to or greater than the set value, the controller applies a driving signal to each of the heat dissipation fans 260 and 270. When the heat dissipation fans 260 and 270 are driven, The heat generated from the light source 250 is emitted to the outside so that the light source 250 can maintain its service life and function.

The deposition apparatus 100 according to the embodiment of the present invention having the above-described structure may be configured such that deposition is performed according to positions of the centers of the light sources 250 with respect to the respective reflection surfaces 222 of the reflectors 220, The luminous intensity value generated in the vicinity of the focus, which is a point, can be greatly changed.

For example, in order to satisfy the deposition rate of 30 mm / s in the welding of the PMMA material and the ABS material among the different synthetic resin products, a luminous intensity value of at least 20,000 cd is required near the focal point.

That is, when the luminous intensity value at the focal point near the focal point is less than 20,000 cd, the PMMA material and the ABS material are not properly welded. As described above, with respect to each reflection surface 222 of each reflector 220 Depending on the position of each light source 250, the luminous intensity value generated near the focal point, which is the welding point, can be 20,000 cd or more, and conversely, less than 20,000 cd.

The deposition apparatus 100 according to an embodiment of the present invention is configured to measure the reflectance of each of the light sources (i.e., the light sources) with respect to each reflection surface 222 of each reflector 220 so that the light intensity value generated near the focal point, 250 are arranged in a range of positions.

8 is a schematic view showing a relationship in which a center of a light source for a reflector is located in a deposition apparatus according to an embodiment of the present invention.

FIG. 9 is a graph showing luminous intensity values according to the center of the output reference first light source and the linear distance to the reflector reflection surface in a direction perpendicular to the optical axis direction, FIG. 10 is a graph showing the center of the output reference second light source, FIG. 11 is a graph showing the luminous intensity values according to the straight line distance from the reflector reflecting surface to the reflector reflecting surface in the direction perpendicular to the reflector reflecting surface. FIG. Fig.

As described above, a halogen lamp may be used as the light source 250 in the deposition apparatus 100 according to the embodiment of the present invention, and different light sources may be applied to the halogen lamp as an output reference.

In a welding apparatus 100 according to an embodiment of the present invention, a light source having a relatively low output relative to an output is referred to as a first light source, and a light source having a relatively high output as compared with the first light source is referred to as a second light source And a difference in luminous intensity value was tested according to the linear distance between the respective light sources 250 and the curvature radius formed on the reflection surface 222 of the reflector 220 in the state where the first light source and the second light source were applied .

In addition, a range exceeding the minimum light quantity of 20,000 cd was experimentally measured according to the line distance between the light source 250 and the radius of curvature formed on the reflection surface 222 of the reflector 220.

First, as a result of measuring a difference in luminous intensity value reflected by the reflecting surface 222 of the reflector 220 according to the straight line distance X 1 from the center of the first light source to the reflecting surface in the direction perpendicular to the optical axis, And the highest luminance value was obtained when the linear distance (X 1 ) was 15 mm.

In this case, when the center LC of the first light source is disposed at a position where the radius of curvature is 15 mm, which is the linear distance (X 1 ) to the reflecting surface in the direction perpendicular to the optical axis direction, as shown in Figs. 8 and 11 The straight line distance Y 1 between the first light source center LC and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220 was measured as 8.4 mm.

Therefore, when the straight line distance Y 1 between the center LC of the first light source and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220 is 8.4 mm, the reflector 220 Was measured as shown in Table 1 below. The results are shown in Table 1 below. ≪ tb >< TABLE > Columns = 2 < tb >

The first light source Y 1 (mm) X 1 (mm) Efficiency range 8.4 13.5 X 13.8 X 14.1 X 14.4 O 14.7 O 15_ criteria O 15.3 O 15.6 O 15.9 X 16.2 X 16.5 X

The straight line distance (Y 1 ) between the center LC of the first light source and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220, as shown in Table 1 and FIGS. 8 and 11, ) Is set to 8.4 mm, a position having a radius of curvature of 15 mm, which is a linear distance (X 1 ) from the center LC of the first light source to the reflecting surface in a direction perpendicular to the optical axis direction, is used as a reference, The curvature radius of curvature, which is the straight line distance (X 1 ) from the center of the first light source to the reflecting surface in the direction perpendicular to the optical axis direction, is changed by changing the curvature value of the reflecting surface 222 of the first light source 220 As a result, it can be seen that when the radius of curvature is 14.4 mm to 15.6 mm, which is the straight distance (X 1 ) from the center of the first light source to the reflecting surface in the direction perpendicular to the optical axis direction, the measured luminous intensity value exceeds 20,000 cd there was.

Referring again to FIG. 9, when the radius of curvature is 14.2 mm or more, which is the straight line distance (X 1 ) from the center of the first light source to the reflecting surface in the direction perpendicular to the optical axis direction, the measured luminous intensity value exceeds 20,000 cd , And it was confirmed that the measured luminous intensity value was less than 20,000 cd when the curvature radius was less than 14.2 mm, and the measured luminous intensity value when the curvature radius was greater than 15.7 mm was measured. And it was confirmed that it was less than 20,000 cd again.

In this way, with the straight line distance Y 1 between the center LC of the first light source and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220 is determined to be 8.4 mm, It was confirmed that the luminous intensity value exceeded 20,000 cd when the radius of curvature (X 1 ) from the center LC of the light source to the reflecting surface in the direction perpendicular to the optical axis direction was 14.2 to 15.7 mm, From the center LC of the first light source to the straight line distance Y 1 between the center LC of the light source and the center point RC at which the radius of curvature of the reflecting surface 222 of the reflector 220 starts, It was confirmed that the ratio of the straight line distance (X 1 ) to the reflection plane was a setting range of 8.4: 14.2 to 15.7, that is, 1: 1.69 to 1.87, which is the optimal setting range (rounded down to three decimal places)

That is, the optimal setting position at which the center LC of the first light source can be disposed is a distance (Y 1 ) between the center point RC at which the radius of curvature starts at the reflecting surface of the reflector 220 is 1 , a linear distance (X 1) with the reflector 220, the reflection surface 222 was found to be a position where the 1.69 ~ 1.87.

Therefore, when the center LC of the first light source is disposed at a position spaced by one from the center point RC at which the radius of curvature of the reflector 220 starts to the straight line distance Y 1 , The curvature radius of the reflecting surface 222 of the reflector 220 is designed such that the straight line distance X 1 from the light source LC to the reflecting surface in the direction perpendicular to the optical axis is separated by 1.69 to 1.87, It was confirmed that light having a light intensity value exceeding at least 20,000 cd was focused around the focal point or the focal point.

On the other hand, the difference in luminous intensity value reflected by the reflecting surface 222 of the reflector 220 was measured according to the linear distance X 2 from the center LC of the second light source to the reflecting surface in the direction perpendicular to the optical axis As a result, it was found that the highest luminance value was obtained when the straight line distance X 2 was 20 mm.

In this case, when the center LC of the second light source is disposed at a position where the radius of curvature is 20 mm, which is the linear distance (X 2 ) to the reflecting surface in the direction perpendicular to the optical axis direction, as shown in Figs. 8 and 11 The straight line distance Y 2 between the second light source center LC and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220 was measured as 11.4 mm.

Therefore, in a state where the straight line distance Y 2 between the center LC of the second light source and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220 is 11.4 mm, the reflector 220 Was measured as shown in Table 2 below as a result of measuring whether the curvature value of the reflective surface 222 of the reflective surface 222 of the reflective surface 222 was gradually increased or decreased.

The second light source Y 2 (mm) X 2 (mm) Efficiency range 11.4 18.5 X 18.8 X 19.1 X 19.4 O 19.7 O 20_ criteria O 20.3 O 20.6 O 20.9 O 21.2 X 21.5 X

The straight line distance (Y 2 ) between the center LC of the second light source and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220, as shown in Table 2 and FIGS. 8 and 11, ) Was set at 11.4 mm and a position having a radius of curvature of 20 mm, which is a straight distance (X 2 ) from the center LC of the second light source to the reflecting surface in the direction perpendicular to the optical axis, 220) of the reflecting surface 222 in accordance with changing the curvature values by varying the size of the curvature radius of a straight distance (X 2) of the optical axis direction and the direction perpendicular to the reflecting surface from the center (LC) of the second light source, each light intensity As a result of measurement, when the radius of curvature is 19.4 mm to 20.0 mm, which is the linear distance (X 2 ) from the center LC of the second light source to the reflecting surface in the direction perpendicular to the optical axis direction, the measured luminous intensity value is 20,000 cd Of the total.

Referring again to FIG. 10, when the radius of curvature is 19.3 mm or more, which is the linear distance (X 2 ) from the center LC of the second light source to the reflecting surface in the direction perpendicular to the optical axis direction, cd, and it was confirmed that the measured luminous intensity value was less than 20,000 cd in case of less than 19.3 mm. When the measured luminous intensity value gradually increased as the radius of curvature became larger and then the curvature radius exceeded 20.9 mm, And the luminosity value was again found to be less than 20,000 cd.

In this way, with the straight line distance Y 2 between the center LC of the second light source and the center point RC at which the radius of curvature starts at the reflecting surface 222 of the reflector 220 is determined to be 11.4 mm, It was confirmed that the luminous intensity value exceeded 20,000 cd when the radius of curvature was 19.3 to 20.9 mm, which is the linear distance (X 2 ) from the center LC of the light source to the reflecting surface in the direction perpendicular to the optical axis direction, From the center LC of the second light source to the straight line distance Y 2 between the center LC of the light source and the center point RC at which the radius of curvature of the reflecting surface 222 of the reflector 220 starts, It was confirmed that the ratio of the straight line distance (X 2 ) to the reflection plane was 11.4: 19.3 to 20.9, that is, 1: 1.69 to 1.83 (rounded down to three decimal places)

That is, the optimum setting position at which the center of the second light source can be disposed is a reflector (e.g., a reflector) when the straight line distance Y 2 from the center point RC at which the radius of curvature starts at the reflecting surface of the reflector 220 is 1 And the straight line distance (X 2 ) with respect to the reflecting surface 222 of the reflecting surface 220 is 1.69 to 1.83.

Therefore, when the center LC of the second light source is disposed at a position separated by a linear distance from the center point RC at which the radius of curvature of the reflector 220 starts, The curvature radius of the reflecting surface 222 of the reflector 220 is designed such that the straight line distance X 2 to the reflecting surface in the vertical direction is spaced by 1.69 to 1.83. When the reflector 220 designed in this way is applied, It was confirmed that light having a light intensity value exceeding at least 20,000 cd was focused around the focal point or the focal point.

12 is a graph showing a linear distance from the center of the light source to the center point where the radius of curvature of the reflector starts, and a vertical distance from the center of the light source to the vertical direction, in order to satisfy the minimum light quantity required by the welding apparatus 100 according to the embodiment of the present invention. The relatively thin line represents the luminous efficiency range of the light according to the first light source and the relatively thick line represents the luminous efficiency efficiency range according to the second light source. .

12, a welding apparatus 100 according to an embodiment of the present invention includes a light source 250, which may be a first light source or a second light source, and a reflecting surface 222 of a reflector 220, When the ratio of the straight line distance from the center LC of the light source to the straight line distance Y from the center point CL to the straight line distance X from the optical axis direction to the reflecting surface is 1: 1.69 to 1.87, It is possible to easily weld the PMMA material and the ABS material while satisfying the deposition rate of 30 mm / s because the luminous intensity converged in the vicinity of the focus exceeds 20,000 cd.

13 is a perspective view of a welding apparatus according to another embodiment of the present invention. As shown in FIG. 13, the heat dissipation fin 212 may be formed on the circumferential surface of the reflector.

The welding apparatus according to another embodiment of the present invention differs from the welding apparatus described in the previous embodiment only in that the heat radiating fin 212 is formed on the outer surface of the reflector instead of the heat radiating fan, Therefore, the same reference numerals are assigned to the same parts, and a repeated description thereof will be omitted.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: welding apparatus 110: arm member
120: connecting shaft 122: connecting bracket
200: light source module 210: flange
220: Reflector 222: Reflecting surface
240: Socket 250: Light source
260,270: Heat dissipation fan LC: Center of light source
RC: Center point at which the radius of curvature of the reflecting surface starts

Claims (7)

A welding apparatus for welding different components using optical energy,
A plurality of light sources for generating light energy;
And a plurality of reflectors corresponding to each of the plurality of light sources,
Wherein each of the reflective surfaces of the plurality of reflectors has an elliptical shape or a free-form surface shape based on an ellipse,
Wherein each of the reflective surfaces shares at least one focus with respect to each other,
Such that at least one of the shared focal points or focal points is the welding position of the different parts,
A ratio of a straight line distance between the center of the light source and a center point at which a radius of curvature starts at the reflecting surface of the reflector and a straight line distance from the center of the light source to the reflecting surface in a direction perpendicular to the optical axis direction is 1: , Welding apparatus. The method according to claim 1,
Wherein each of the reflection surfaces of the plurality of reflectors has the same radius of curvature,
Wherein the reflective surfaces of the plurality of reflectors are adjacent to each other at an equal angle to each other. The method according to claim 1,
Wherein a heat dissipating fan for discharging heat generated from the light source to the outside is mounted on at least one circumferential surface of the circumferential surfaces of the plurality of reflectors. The method according to claim 1,
Wherein a heat dissipation fin is formed on at least one of the circumferential surfaces of the plurality of reflectors. The method according to claim 1,
Wherein the luminous intensity value of the light that is generated from the light sources and reflected by the reflection surface of the reflectors and then converged in the vicinity of the focus or the focus is 20,000 cd or more. delete The method according to claim 1,
Wherein the light source is a halogen lamp.
KR1020150160187A 2015-11-16 2015-11-16 Fusion apparatus KR101740582B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100188697B1 (en) * 1996-05-30 1999-06-01 윤종용 Light source apparatus for projector
JP2004335363A (en) * 2003-05-09 2004-11-25 Ushio Inc Light source unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100188697B1 (en) * 1996-05-30 1999-06-01 윤종용 Light source apparatus for projector
JP2004335363A (en) * 2003-05-09 2004-11-25 Ushio Inc Light source unit

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