JP3664029B2 - Laser marking machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laser marking device for performing marking by using line light from a laser.
[0002]
[Prior art]
There is a pencil-type inking device disclosed in Japanese Patent No. 3003096 as a thin-type laser inking device excellent in portability. In this configuration, three openable and closable support legs are connected to the upper end of the main body via a gyro mechanism, and laser point light in the vertical direction is emitted from the upper and lower ends.
[0003]
[Problems to be solved by the invention]
However, in the above, there is a gyro mechanism at the upper end, and since the support leg is connected here, the vertical line light or the horizontal line light directed to the side cannot be emitted. Since only point light below the vertical line can be used, the ink marking work is limited.
[0004]
The present invention has been made in view of the above points, and the object of the present invention is to be narrow and compact, and to emit vertical or horizontal line light, and to perform a wide range of inking work. There is a laser inking device that can do that.
[0005]
[Means for Solving the Problems]
Accordingly, the present invention provides a main body including an optical system including an optical deflecting member that deflects a beam output from a laser light source unit at a predetermined angle and a cylindrical lens that converts the deflected beam into fan-shaped line light, and the main body. The main body has a gimbal portion having two axes intersecting at right angles and is swingable with respect to the support leg by the gimbal portion. A lower reference point radiating unit that emits a beam downward and a driving power source, and the optical system, the gimbal unit, the power source, and the lower reference point radiating unit are arranged in a straight line in the vertical direction in this order. The support legs are characterized in that they form a rod shape with the main body when the legs are closed.
[0006]
As the optical system, a single laser light source unit and a branching optical member for branching a beam output from the laser light source unit can be suitably used to output point light and line light. A plurality of laser light source units for light output and line light output may be provided.
[0007]
Further, the laser light source unit in the optical system outputs leaked light on the opposite side to the output side, and the lower reference point radiating unit may radiate the leaked light. A cylindrical lens provided as a detachable block with respect to the main body containing the laser light source, or a branching optical member in the optical system makes the light amount to the line light side larger than the light amount to the point light side A thing can be used suitably.
[0008]
It is also preferable to provide a protective cover that covers the entire outside of the optical system. At this time, it is also preferable that the protective cover has a clip-like locking portion on its outer surface.
[0009]
It is also preferable that a cushioning material is disposed between a support side member that supports the gimbal part and a main body that is supported by the support side member via the gimbal part.
[0010]
As the gimbal portion, a gimbal portion that is arranged at a position where the two horizontal axes are displaced in the vertical direction can be suitably used. It is also preferable that the two axes of the gimbal portion are formed by a bearing having an automatic alignment function.
[0011]
Further, each of the support legs may have a circular arc cross section so as to cover the outer peripheral surface of the main body when the leg is closed, or may be a columnar shape so that the support leg is placed in a vertical groove provided on the outer peripheral surface of the main body when the leg is closed.
[0012]
It is also preferable that the end portion of each support leg serving as a ground contact portion has a sharp shape, or the length of each support leg can be adjusted by expansion and contraction.
[0013]
The support leg is attached to the main body by providing a ring-shaped pedestal that supports the support leg so that the support leg can be opened and closed. It is good to be held so that rotation is possible.
[0014]
It is also preferable that the support leg is detachable from the main body.
[0015]
Further, the main body may be provided with a power switch that is turned on / off in accordance with the opening / closing of the support leg, the power source located below the gimbal portion may be used as a weight, or the power source may be detachable.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on an example of an embodiment. FIGS. 1 to 3 show a schematic configuration of an example. The laser marking device main body 1 comprising three support legs 2 that can be opened and closed is an optical system that outputs point light upward in the upper end portion thereof and fan-shaped line light laterally. 3, a gimbal portion 4 having two axes 41 and 42 orthogonally intersecting at the lower side thereof, a storage portion for a battery 15 as a power source is provided below the gimbal portion 4, and further pointed downward at the lower end The optical system 3 includes a semiconductor laser light source 31, a condensing lens 32 that condenses a laser output from the semiconductor laser light source 31, a light deflecting member, and a light branching member. Half mirror 36 The laser beam is formed by a cylindrical lens 37 that uses the light deflected by the mirror 36 as fan-shaped line light. The laser beam transmitted through the half mirror 36 becomes point light directed vertically upward, and is deflected by the half mirror 36 and horizontally. The directed laser beam becomes line light that spreads in a fan shape in the vertical direction (or fan-shaped in the horizontal direction) by the cylindrical lens 37. The half mirror 36 has a high reflectance so that the light amount of the line light is larger than the light amount of the point light.
[0017]
In the optical system 3, the light source unit 30 including the laser light source 31 and the condenser lens 32 is fixed to the main body 1, but the half mirror 36 and the cylindrical lens 37 are detachable caps on the upper end of the main body 1. As shown in FIG. 4, the light emitting unit 35 is fixed in the portion 38, and is replaced with another light emitting unit 35 having a different direction of the cylindrical lens 37, whereby vertical line light and horizontal line light are obtained. Can be selectively output.
[0018]
As shown in FIG. 5, the gimbal portion 4 includes two axes 41 and 42 that are orthogonally arranged with their positions shifted in the vertical direction, and is formed by a ring-shaped pedestal 20 on which the upper end of the support leg 2 is pivotally supported. The shaft 41 is supported at both ends, an intermediate body 40 including the shaft 41, and a shaft 42 protruding from the intermediate body 40. The intermediate body 40 is swingable around the shaft 41 and is connected to the intermediate body 40. On the other hand, since the main body 1 is swingable around the shaft 42, the pedestal 40 is inclined in the laser marking device configured so that the center of gravity of the main body 1 is located below the gimbal portion 4. The main body 1 is kept in a vertical state.
[0019]
The reason why the two axes 41 and 42 arranged orthogonally are shifted in the vertical direction is that the outer diameter can be made smaller than when both the axes 41 and 42 are arranged in the same plane. Further, here, the battery 15 which is a power source and is heavy is disposed below the gimbal portion 4 and used as a weight, so that the center of gravity of the main body 1 is positioned below the gimbal portion 4. Further, the battery 15 is replaced by removing the lower reference point radiating portion 5 attached to the lower end of the main body 1 by opening the lower end of the main body 1 and attaching / detaching the battery 15 from here. The battery 15 can be replaced without affecting the adjustment state of the optical system 3 and the gimbal portion 4.
[0020]
The three support legs 2 that are openable and closable by pivotally supporting the upper end of the pedestal 20 have an arc shape in the horizontal cross section, and when closed, as shown in FIG. The lower outer peripheral surface of 1 is covered with a main body 1 to form a rod-like form.
[0021]
The support legs 2 may be columnar in this case, but in this case, as shown in FIG. 7, if a vertical groove 19 into which the closed leg support legs 2 are fitted is provided on the lower outer peripheral surface of the main body 1, The outer diameter can be reduced.
[0022]
If the tip of the support leg 2 serving as the ground contact portion is pointed as shown in FIG. 8, the ground contact point becomes a point contact, so that stability can be improved.
[0023]
As shown in FIG. 9, the length may be adjusted by telescopically extending and retracting the support leg 2. When an optical system 3 that outputs horizontal line light is used, the horizontal line can be moved up and down while the vertical line is fixed.
[0024]
In FIG. 10, the power button SW is turned on when the support leg 2 is opened, and the power switch SW is turned off when the support leg 2 is closed, so that the push button portion is pushed by the support leg 2 closed on the lower outer peripheral surface of the main body 1. The one using the power switch SW is shown.
[0025]
As for the gimbal portion 4, the shafts 41 and 42 may be supported by the intermediate body 40 through bearings 44 and 44 having an automatic alignment function as shown in FIG. Due to the self-aligning function of the bearing 44, the accuracy of the vertical degree of the main body 1 can be made higher than in the case of only the gimbal mechanism.
[0026]
Further, as shown in FIG. 12, the pedestal 20 that pivotally supports each support leg 2 has an inner diameter larger than the lower outer diameter of the main body 1. If it receives by the groove | channel 25 of this, the main body 1 and the support leg 2 side can be isolate | separated by extracting the main body 1 upwards with respect to the base 20 and the support leg 2. FIG. In this case, if a plurality of types of support legs 2 having different lengths (heights) are prepared, the height of the horizontal line can be set by exchanging the support legs 2.
[0027]
The lower reference point radiating unit 5 may be provided with a laser light source different from that of the optical system 3, but as shown in FIG. 13, the backward light can be used as the laser light source 21 of the optical system 3. If so, this backward light leakage may be used. Adjustment can be simplified. However, the gimbal part 4 and the battery 15 in this case are configured and arranged so as not to block the leaked light traveling vertically downward.
[0028]
FIG. 14 shows another example. The optical system 3 is provided with a laser light source 31 and a condensing lens 32 for point light that are emitted vertically upward, and a laser light source 31 and a condensing lens 32 for line light that are emitted laterally, and output from the latter. The laser beam to be transmitted passes through a total reflection mirror 39 and a cylindrical lens 37.
[0029]
When the light from the single laser light source 21 is branched using the above-described half mirror 36, the light quantity of the line light can be made larger than the light quantity of the point light by using a half mirror having a high reflectance. However, if the two light sources 31 and 31 for the point light and the line light are used, the total light amount of the one light source 31 can be used as the line light, so that the light amount can be increased. Moreover, each light quantity adjustment of point light and line light can also be performed independently.
[0030]
FIG. 15 shows another example. This is because the cushioning material 8 is arranged on the opposing surface of the pedestal 20 that pivotally supports the support leg 2 and the main body 1 attached to the pedestal 20 via the gimbal portion 4, so that the swing limit angle of the main body 1 The shock absorber 8 prevents the main body 1 and the pedestal 20 from directly hitting even if a vibration exceeding 1 mm occurs in the main body 1, thereby improving the impact resistance.
[0031]
FIG. 16 shows an example in which a protective cover 9 is provided to cover and protect the optical system 3 at the upper end of the main body 1. The protective cover 9 attached by engaging the lower end with the pedestal 20 also serves to limit the swing range of the main body 1 relative to the pedestal 20.
[0032]
As shown in FIG. 17, a clip-shaped locking portion 90 is provided on the outer surface of the protective cover 9, and when the main body 1 is carried in a pocket of clothes, the locking portion 90 is locked to the clothes. Thus, the main body 1 is prevented from jumping out of the pocket and falling.
[0033]
【The invention's effect】
As described above, in the present invention, a main body including an optical system including an optical deflection member that deflects a beam output from a laser light source unit at a predetermined angle and a cylindrical lens that converts the deflection beam into fan-shaped line light; The main body has a plurality of support legs that can be opened and closed with respect to the main body, and the main body has a gimbal portion having two axes that intersect at right angles, and the gimbal portion can swing with respect to the support leg. In addition, a lower reference point radiating unit that emits a beam vertically downward and a driving power source are provided, and the optical system, the gimbal unit, the power source, and the lower reference point radiating unit are linearly arranged in this order in the vertical direction. Since the support legs form a rod shape with the main body when the legs are closed, each member is arranged in the vertical direction, and it is not a component arrangement that spreads sideways in the plane, so it is slender. You It made it, it can be obtained those compact as pen type, those living in smaller installation space required in use. In addition, since the lower reference point radiating portion is provided, it can be accurately installed on the reference position, and since it is provided with the gimbal portion, it can be used even in a non-horizontal place. This also protects the main body when it is closed, and is difficult to damage the components in the main body. And since the optical system is located above the gimbal part, the gimbal part and the support leg do not interfere with the output of the line light to the side, and a wide range of ink marking work can be performed. it can.
[0034]
When the optical system includes a single laser light source unit and a branching optical member that branches a beam output from the laser light source unit and outputs point light and line light, the number of laser light source units is Since the internal structure can be reduced, the internal structure can be simplified, which is further advantageous for reduction in size and weight. In addition, the light amount adjustment of both the light outputs can be performed only by adjusting the light amount of one laser light source unit.
[0035]
It may be equipped with a plurality of laser light source units for point light output and line light output. In this case, each light output can be individually increased while increasing the amount of light of each light output. Can be adjusted.
[0036]
In addition, the laser light source in the optical system outputs leakage light on the opposite side to the output side, and if the lower reference point radiation part emits the leakage light, the number of laser light source parts can be further reduced. This is advantageous for reduction in size and weight and is easy to adjust.
[0037]
If the light deflection member and the cylindrical lens in the optical system are provided as a detachable block with respect to the main body containing the laser light source, the vertical line light and the horizontal line light can be properly used only by exchanging the block. In addition, it can be made smaller than the one that generates both line lights at the same time.
[0038]
In a case where a branching optical member is used in the optical system, it is preferable in practical terms that the amount of light on the line light side is larger than the amount of light on the point light side.
[0039]
If a protective cover that covers the entire outside of the optical system is provided, the durability against a drop impact or a tipping impact can be increased, which is effective in maintaining accuracy.
[0040]
At this time, if a clip-like locking part is provided on the outer surface of the protective cover, the locking part can be locked to the clothes when carrying it in a pocket of clothes, etc., so that the fall can be prevented. .
[0041]
Further, if a cushioning material is disposed between the support side member that supports the gimbal part and the main body supported by the support side member via the gimbal part, the movement beyond the allowable swing angle of the main body Even when this occurs, the impact received by the main body can be reduced, and a highly durable product can be obtained.
[0042]
The gimbal portion can be obtained with a high vertical accuracy while reducing the outer shape by arranging the two horizontal axes at positions shifted in the vertical direction.
[0043]
Further, when the two axes of the gimbal portion are formed by a bearing having an automatic alignment function, the accuracy can be further increased.
[0044]
Each of the support legs has an arc shape in cross section and covers the outer peripheral surface of the main body when the legs are closed, which is effective in reducing the outer shape.
[0045]
In the case of a columnar shape, the outer shape can be made narrower by keeping the support legs in vertical grooves provided on the outer peripheral surface of the main body when the legs are closed.
[0046]
If the end portion of each support leg serving as the ground contact portion has a sharp shape, the ground contact area can be reduced, so that a stable and self-supporting one can be obtained.
[0047]
It is also preferable that the length of each support leg can be adjusted by expansion and contraction because the height of the horizontal line light can be changed.
[0048]
The support leg is attached to the main body by providing a ring-shaped pedestal that supports the support leg so that the support leg can be opened and closed. The structure is simple if it is held rotatably.
[0049]
If the support legs can be attached to and detached from the main body, they can be made smaller and more portable. If support legs with different lengths are prepared, the support legs can be exchanged horizontally. The height of the line light can be changed.
[0050]
Furthermore, if the main body is provided with a power switch that is turned on / off in accordance with the opening / closing of the support leg, the trouble of turning on / off the power switch becomes unnecessary and the possibility of forgetting to turn off the power switch can be reduced.
[0051]
If the power supply located below the gimbal portion is a weight, it is not necessary to provide a separate weight, so that the size and weight can be reduced, and it is preferable that the power supply is detachable.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing an example of an embodiment of the present invention.
FIG. 2 is a perspective view showing a state in which the support legs are closed.
FIG. 3 is a schematic sectional view of the above.
4A and 4B are schematic perspective views showing two examples of the light emitting unit of the above.
FIG. 5 is a front view showing a schematic configuration of a gimbal portion same as above.
FIG. 6 is a perspective view showing the battery attaching / detaching configuration.
FIG. 7 is a perspective view showing another example of a support leg.
FIG. 8 is a perspective view showing still another example of the support leg.
FIG. 9 is a perspective view showing another example of a support leg.
FIGS. 10A and 10B show an example of a power switch. FIG. 10A is a perspective view, and FIGS. 10B and 10C are explanatory diagrams of an on / off structure.
11A and 11B show another example of the gimbal portion, where FIG. 11A is a schematic perspective view, and FIG. 11B is a schematic cross-sectional view.
FIG. 12 is a perspective view showing still another example of the gimbal portion.
FIG. 13 is a schematic cross-sectional view showing another example of the optical system.
FIG. 14 is a schematic cross-sectional view showing still another example of the optical system.
FIG. 15 is a schematic cross-sectional view of another example.
FIG. 16 is a schematic sectional view of an example in which a protective cap is provided.
FIG. 17 is a schematic sectional view showing another example of the protective cap.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Support leg 3 Optical system 4 Gimbal part 5 Lower reference point radiation | emission part 15 Battery 30 Laser light source part 36 Half mirror 37 Cylindrical lens

Claims (20)

A main body including an optical system including a light deflecting member that deflects a beam output from the laser light source unit at a predetermined angle and a cylindrical lens that converts the deflected beam into fan-shaped line light, and is openable and closable with respect to the main body. A laser marking device comprising a plurality of support legs, wherein the main body has a gimbal part having two axes intersecting at right angles and is swingable with respect to the support leg by the gimbal part. A lower reference point radiating unit that emits a beam vertically downward and a driving power source are provided, and the optical system, the gimbal unit, the power source, and the lower reference point radiating unit are linearly arranged in this order in the vertical direction. A laser marking device characterized in that the support leg forms a rod with the main body when the leg is closed. 2. The optical system includes a single laser light source section and a branching optical member that branches a beam output from the laser light source section, and outputs point light and line light. Laser marking machine. 2. The laser marking device according to claim 1, wherein the optical system includes a plurality of laser light source units for outputting point light and for outputting line light. The laser light source unit in the optical system outputs leakage light on the opposite side to the output side, and the lower reference point radiation unit emits the leakage light. The laser marking device according to any one of the items. 5. The laser marking device according to claim 1, wherein the light deflection member and the cylindrical lens in the optical system are provided as a detachable block with respect to a main body containing a laser light source. vessel. 3. The laser marking device according to claim 2, wherein the branching optical member in the optical system has a light amount to the line light side larger than a light amount to the point light side. The laser marking device according to any one of claims 1 to 6, further comprising a protective cover that covers the entire outside of the optical system. 8. The laser marking device according to claim 7, wherein the protective cover has a clip-like locking portion on an outer surface thereof. The shock absorbing material is arranged between the support side member which supports a gimbal part, and the main body supported by the said support side member via a gimbal part, The term of any one of Claims 1-8 characterized by the above-mentioned. Laser marking device as described in. The laser marking device according to any one of claims 1 to 9, wherein the gimbal portion is arranged at a position where two horizontal axes are shifted in the vertical direction. The laser marking device according to any one of claims 1 to 10, wherein the two axes of the gimbal portion are formed by bearings having a self-aligning function. The laser marking device according to any one of claims 1 to 11, wherein each support leg has an arc shape in cross section and covers the outer peripheral surface of the main body when the leg is closed. 12. The laser marking device according to claim 1, wherein each support leg is columnar and the main body has a longitudinal groove on the outer peripheral surface thereof in which the support leg in a closed state is received. vessel. 14. The laser marking device according to claim 12 or 13, wherein each support leg has a sharp end at the grounding portion. The laser marking device according to any one of claims 12 to 14, wherein each support leg is adjustable in length by expansion and contraction. A ring-shaped pedestal that supports the support leg in an openable and closable manner is provided, and one axis protruding from the outer peripheral surface of the main body of the two axes of the gimbal portion is rotatably held on the pedestal. Item 15. A laser marking device according to any one of items 1 to 15. The laser marking device according to any one of claims 1 to 16, wherein a support leg is detachable from the main body. The laser marking device according to any one of claims 1 to 16, wherein the main body includes a power switch that is turned on and off in accordance with opening and closing of the support leg. The laser marking device according to any one of claims 1 to 18, wherein a power source located below the gimbal portion is a weight. The laser marking device according to any one of claims 1 to 13, wherein the power source is detachable.

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