JP3160800B2 - Laser marking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser marking device used for a marking operation in, for example, a room layout or a partition, and which can be performed very simply by being installed on a floor. I will provide a.

[0002]

2. Description of the Related Art As a prior art of a laser marking device, there is, for example, one disclosed in Japanese Utility Model Laid-Open Publication No. 3-88678. It is shown in FIG.
In FIG. 1, a lens barrel member 104 equipped with a laser optical system is suspended and supported via a gyro mechanism (not shown), and the ceiling optical beam B is applied to the ceiling surface S ₁ , floor surface S ₂ , and side wall surface S ₃ by the laser optical system. _11, the floor projection beam B ₂₁ and simultaneously emitted configured to be able to side wall surface projection beam B ₃₁ · B _32, ceiling projection beams B ₁ ¬ and the side surface projection beam B ₃₁ · B ₃₂
Projecting above the head housing 101,
The beam emitting portion 106 of the floor projection beam B ₂₁ is connected to the lens barrel member 1.
04.

As shown in FIG. 7, the laser optical system horizontally reflects a laser light source (not shown) housed in the lens barrel member 104 and a part of a laser beam B emitted upward from the laser light source. With
A half mirror 131 transmitting the remaining portion vertically upward;
Two rod lenses 135 arranged in a T-shape so as to be orthogonal to the optical path of the horizontally reflected horizontal beam B #
and a · 135b, is composed of a separate laser light source for emitting the floor projection beam B _21. Note that reference numeral 110 in FIG. 7 denotes a lens barrel cover that covers the emission part 105 of the upper beam.

[0004] The laser marking apparatus, as shown in FIG. 6, after positioning by matching the beam spot P ₂ of the floor projection beam B ₂₁ to the floor S ₂ Chisumi, ceiling surface to the ceiling surface S ₁ projecting a projection beam B ₁₁ to form a beam spot P _1, the side wall surface on the side wall surface S ₃ the projection beam B ₃₁ · B ₃₂ projected to form a projection line L ₃₁ · L _32, these beam spots P It is configured to perform the marking work based on ₁ or projection line L ₃₁ · L _32.

[0005]

In [0006] the prior art, as shown in FIG. 6, provided a beam emitting unit 106 of the floor projection beam B ₂₁ in the lower portion of the barrel member 104 that is suspended with the head housing 101 since that, the floor projection beam B ₂₁ when to meet the Chisumi floor S _2, the head housing 101 is hardly visible is ground black in the way. For this reason, if the head 108 is positioned as high as possible by lengthening the legs 108, the center of gravity will be located at an upper position and will be unstable, and the usability will be poor.

[0006] The present invention has been made in view of such circumstances, when to match the floor projection beam in the floor Chisumi may usability and easy look the floor projection beam and Chisumi In addition, it is a technical task to lower the center of gravity to give a sense of stability.

[0007]

In order to achieve the above object, the present invention is configured as follows. That is, claim 1
The invention described in the lens barrel member 4 equipped with a laser optical system 3 via the gyro mechanism 2 on the base 1 pendent support, this
From beam emitting portion 5 of the barrel member 4, the ceiling surface S _1, the floor S _2, and the respective ceiling projection beam on the side wall surface S ₃ B ₁₁ ·
B ₁₂ , floor projection beam B ₂₁ , and side wall projection beam B ₃₁
In laser marking apparatus constructed as to emit B ₃₂ a, balance adjust the weight member 41 to the barrel member 4
As a result, the lens barrel member 4 is suspended horizontally, and the beam emitting portion 5 at one end of the lens barrel member 4 is provided.
Projecting out of the housing 10 beside the base 1 ,
The floor projection beam B ₂₁ is transmitted from the beam output unit 5 to the
It is characterized in that it is configured to hang down to the lateral position of the base 1 .

According to a second aspect of the present invention, in the laser marking device according to the first aspect, the upward vertical beam B
₁ or in any one of the optical path of the horizontal beam B _3, of the beam
The rod lens 35a is disposed by orthogonal portion, the
A part of the beam is deflected by the rod lens 35a.
While moving the rest straight,
Ri projection line on the walls by the projection beam B ₁₁ when it is opened in a fan shape L
₁₁ and the other straight beam B ₁₂
It is characterized in that it has configured to form a beam spot P ₁ on the projection line L _11.

[0009]

According to the present invention, the following functions and effects are obtained. (A) According to the first aspect of the present invention, the lens barrel member 4 has a weight member.
The lens barrel member 4 is suspended horizontally by providing the balance 41 so that the beam emitting portion 5 on one end side of the lens barrel member 4 can be placed outside the base 1 outside the housing 1.
0 and project the floor projection beam B ₂₁ to the beam
From what has been <br/> configured to droop lateral position of the base 1 from the arm exit portion 5, as shown in FIG. 5, the floor projection bi
The beam B ₂₁ can be easily visually recognized, and the floor projection beam B ₂₁
The beam spot P ₂ formed by the time to match the floor Chisumi, floor projection beam B ₂₁ and Chisumi tends visible, ease of use is improved. Further, the center of gravity can be set low to give a sense of stability.

[0010] (b) In the invention described in claim 2 is the laser marking apparatus according to claim 1, the upward vertical beams B ₁ or any of the optical path of the horizontal beam B _3, the
Arranged rod lens 35a by perpendicular to a portion of the beam, a portion of the beam by the rod lens 35a
Deflecting and moving the rest straight
From the projection beam B ₁₁ with expansion straddled fan by the deflection forms a projection line L ₁₁ to the wall. On the other hand, go straight
Beam B ₁₂ forms a high beam spot P ₁ of the light beam density on the projected line L _11. This makes it possible to display a clear reference point on the projection line L _11, usability even better in terms of the marking work.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of a laser marking device with a casing removed, FIG. 2 is a longitudinal sectional view of the device, and FIG. 4 is a schematic diagram of a laser optical system of the device. As shown in FIGS. 1, 2, and 4, the laser marking device includes a base 1, a lens barrel member 4 suspended and supported on the base 1 via a gyro mechanism 2, and a lens barrel member 4. become incorporated in and a laser optical system 3, the ceiling surface S ₁ by the laser optical system 3, the floor surface S _2, and the side surface S _3, ceiling projection, respectively the beam B ₁₁ · B _12, floor The surface projection beam B ₂₁ and the side wall surface projection beams B ₃₁ and B ₃₂ are simultaneously emitted.

As shown in FIGS. 1 and 2, the gyro mechanism 2 includes a swing block 25 for suspending and supporting the lens barrel member 4 via a horizontal X support shaft 21 so as to swing in the Y direction. A base frame 24 pivotally supports the swing block 25 in the X direction via a horizontal Y support shaft 22, and is configured to swingably support the lens barrel member 4. The base frame 24 is supported by four columns 23 erected on the base 1.

3A and 3B show a shaft support of the swing block 25. FIG. 3A is a longitudinal sectional view along the X axis, and FIG. 3B is a longitudinal sectional view along the Y axis. FIG. 3 (A)
As shown in (B), the swing block 25 is provided with a pair of bearings 26, 26 and 27, 27 along the front and rear, left and right axes X and Y, respectively. FIG.
As shown in FIG. 2A, a pair of front and rear suspension portions 6, 6 formed integrally with the lens barrel member 4 are each provided with a horizontal X support shaft 21.
21 is screwed in from the front and rear so as to be adjustable forward and backward, and is pivotally supported by the bearings 26. A floating regulating spring 28a for regulating the axial movement of the front X support shaft 21 is provided.
Is externally fitted. Note that reference numeral 29 in FIG.
A fixing screw for fixing each X support shaft 21 after adjusting the movement thereof is shown.

[0014] As shown in FIG.
The pair of left and right base frame arms 24a, 24a
Is that the horizontal Y support shafts 22
It is screwed in to advance and retreat freely, and pivoted by the bearings 27
Have been. One of the Y support shafts 22 has two types of bullets
Spring28a ・ 28bIs fitted on the outside,
Ne28bOnly the outside is fitted. Weak spring28a
Functions as a floating control spring that restricts axial movement.
To remove axial play in the shaft support.
The adjustment of the Y support shaft 22 is not required. Also strong elastic spring
28bIs a shock-absorbing spring that cushions the impact from the left and right sides.
Function, so that the bearings 27
Reduces damage and reduces damage rate. The X support shaft 2
2 types of elastic springs as needed for 128a
・ 28bIt is desirable to employ.

At one end of the lens barrel member 4 suspended from the gyro mechanism 2, the projection beams B ₁₁ , B ₁₂ , B
_21, B ₃₁ · beam emitting portion 5 of the B ₃₂ is caused to project out of the housing 10 at the lateral outside of the base 1, the floor projection beam B ₂₁
From the beam emitting portion 5 to a lateral position of the base 1.
It is configured to. Thus the floor projection beam B ₂₁ when to match the floor Chisumi, the floor projection Bee
The color B ₂₁ and the ground ink become easier to see and the center of gravity can be set lower, so that the usability is improved.

At the other end of the lens barrel member 4 , a beam emitting portion 5 is provided.
1 and 2, a weight member 4 as shown in FIGS.
The balancer 43 is attached to the back of the weight member 41 via a position adjusting collar 42.
Further, screws 44 and 45 for adjusting the balance are provided on the front and side surfaces of the weight member 41, respectively, so as to be finely advanced and retracted. Thus, the inclination of the horizontal axis XY of the lens barrel member 4 can be finely adjusted by the balancer 43 and the screws 44 and 45. Further, by this, the lens barrel member 4 is suspended horizontally, and the beam emitting portion 5 is placed outside the base 1 outside the housing 1.
It is possible to adopt a configuration of protruding out of 10 . Therefore, the floor projection beam B ₂₁ when to match the floor Chisumi, easily the floor projection beam B ₂₁ and Chisumi is visible, the center of gravity can be set is low, ease of use is improved.

A spherical shell 45 made of a non-magnetic material is suspended from the weight member 41 via a suspension rod 45a, and the spherical shell 45 is disposed facing the magnet support 47. It is provided so as to be able to be inserted into the gap between the pair of magnets 46. Thus, when the laser marking device is installed on the floor, the swing of the lens barrel member 4 swinging in the X and Y directions can be quickly braked. The hanging rod 45a
On the lower side, a ring-shaped elastic regulating member 48 for regulating the swing range of the hanging bar 45a is fixed on the base 1. Further, the base 1 is provided with a switch operating tool 50.

As shown in FIG. 1, the switch operating tool 50 is provided with an operating lever 51 provided below the base 1, and is provided so as to be integrally rotatable via the operating lever 51 and a rotating shaft 52. The regulating arm 53 is provided rotatably via a support shaft 55, and the distal end of the regulating arm 53 and a guide groove 56
A switch contact arm 57 connected to the support shaft 55 and one end of the switch contact arm 57
7 and a winding spring 58 for holding the posture, which is operated by operating the operation lever 51 in the direction of arrow F.
The swing of 5a is regulated, the swing regulation is released at the time of operation, and the switch contact arm 57 is brought into contact with the hinge lever 61 of the laser light source lighting switch 60 to be turned on.

Next, the laser optical system 3 will be described. As shown in FIG. 1, FIG. 2, and FIG. 4, the laser optical system 3 vertically emits a single laser light source 30 and a laser beam B emitted from this laser light source 30 through a collimator lens 34 as parallel light. beam B _1, downward vertical beam B _2, and a deflection <br/> means 31, 32 for deflecting the horizontal beam B _3, ceiling projection beam B _11, B ₁₂ and the floor projection beam B ₂₁ and a single the vertical axis aligning unit 33 for aligning on the vertical axis Z, comprises comprises a plurality of rod lenses 35a · 35b · 35c to expand the incident beam in a fan shape, polarized
The direction means 31 is provided by the first half mirror 31 and the deflecting means 3.
Reference numeral 2 denotes a second half mirror 32.

[0020] That is, the first half mirror 31 to form an upward vertical beams B ₁ is reflected upward a portion of the laser beam B, and transmits the remaining portion in the horizontal direction, the second half mirror 32 first A part of the horizontal beam B ₃ transmitted through the half mirror 31 is
, And the remaining part is transmitted coaxially in the horizontal direction. Then, the horizontal beam B ₃ coaxially reflected by the second half mirror 32 is reflected by the back surface of the first half mirror 31 to form a downward vertical beam B ₂ . This allows
Instead of adding a laser light source for forming a downwardly vertical beam B _2, since it is only necessary to install more second half mirror 32, it is possible to substantially reduce costs.

As shown in FIG. 4, the upward vertical beam B ₁
The optical path, the rod lens 35a by perpendicular to a portion of the beams B ₁ is disposed on the rod lens 35a
With deflecting the more portion of the beam B _1, its
Go straight ahead. The projection of the one was expansion straddled sectorial theta ≒ 100 ° in the vertical plane by the deflected beam B
₁₁ forms a projection line L ₁₁ from the ceiling surface S ₁ toward the side wall surface S _3. On the other hand , the other straight beam B ₁₂ is projected line L
_A beam spot P ₁ having a high luminous flux density is formed on 11.
This makes it possible to display a clear reference point P ₁ on the projection line L ₁₁ projected onto the ceiling surface S ₁ (see FIG. 5), usability is improved in terms of the marking operations.

In the optical path of the horizontal beam B ₃ , the beam B ₃
Two rod lenses abutting in a T shape so as to be orthogonal to
35b and 35c are arranged, and a part of the beam B ₃ is
It is deflected by one rod lens 35b, and the remaining part is
It is deflected by the other rod lens 35c. And one of
Deflected by the rod lens 35b and θ ≒ 1 in the horizontal plane
00 projection beam B ₃₁ with expansion straddled sectorial °, the side wall surface S ₃
Forming a horizontal projection line L ₃₁ in. The other rod lens 3
The projection beam B ₃₂ <br/> was expansion straddled sectorial theta ≒ 100 ° in the vertical plane are deflected by 5c forms a vertical projection line L ₃₂ from the side wall surface S ₃ toward the floor surface S ₂ ( (See FIG. 5). This makes it possible to display two reference lines perpendicular to the side wall surface S _3, usability is improved in terms of the marking operations.

As shown in FIG. 4, the downward vertical beam B ₂
In the optical path, a slit 33
The provided adjustably optical axis position, is configured to form a floor projection beam B ₂₁ narrow down the beam diameter of the vertical beam B _2. Thus it is possible to match only the ceiling surface projection beam B ₁₂ and the floor projection beam B ₂₁ and easily on a single vertical axis Z to adjust the optical axis position of the slit 33. The laser light source 3 constituting the laser optical system 3
0, collimator lens 34, half mirrors 31 and 32,
Slit 33 and rod lenses 35a, 35b , 35
“c” is provided so that the position and the inclination can be finely adjusted by supporting members (not shown).

In the above embodiment, the X of the swing block 25
Although the support shaft 21 is illustrated as a pair of front and rear and the Y support shaft 22 is illustrated as a pair of left and right, at least one of the support shafts 21 may be configured of one support shaft. Further, the base frame 24 has been exemplified as being supported by the four columns 23, but is not limited thereto. Further, in the above embodiment, the lens barrel member 4 and the weight member 41 are described as being integrally formed. However, they may be formed separately and balanced. In addition, the switch operating tool 50 is illustrated as regulating the swing of the hanging rod 45a when not operating, and releasing the swing regulation when activated to turn on the laser light source lighting switch 60. And other specific configurations can also be implemented with appropriate changes.

[Brief description of the drawings]

FIG. 1 is a perspective view of a laser marking device according to the present invention.

FIG. 2 is a longitudinal sectional view of the laser marking device.

FIG. 3 shows a pivot portion of the swing block 25, and FIG.
Is a longitudinal sectional view along the center line X, and FIG. 3B is a longitudinal sectional view along the center line Y.

FIG. 4 is a schematic view of an optical system of the laser marking device.

FIG. 5 is an explanatory diagram of a marking operation using the laser marking device.

FIG. 6 is an explanatory diagram of a marking operation using a laser marking device according to a conventional example.

FIG. 7 is a longitudinal sectional view of a main part showing the above-mentioned conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Gyro mechanism, 3 ... Laser optical system, 4
... barrel member, the exit part of 5 ... barrel member, 35a ... rod lens, S ₁ ... ceiling surface, S ₂ ... floor, S ₃ ... side wall surface, B ₁ ... upward vertical beam, B ₃ ... horizontal beam, B ₁₁ · B ₁₂ ... ceiling projection beam, B ₂₁ ... floor projection beam, B ₃₁ · B ₃₂ ... side wall surface projection beam, L ₁₁ ... projection line, P ₁ ... beam spot.

Claims (2)

(57) [Claims] 1. A lens barrel (4) on which a laser optical system (3) is mounted is suspended from a base (1) via a gyro mechanism (2), and a beam is emitted from the lens barrel (4). Department (5)
From the ceiling surface (S ₁ ), the floor surface (S ₂ ), and the side wall surface (S ₃ ), the ceiling surface projection beam (B ₁₁ )
(B _12), the floor projection beam (B _21), and the side surface projection beam (B ₃₁₎ in a laser marking apparatus which is configured to emit (B _32), the weight member to the barrel member (4) (41) balance adjustable
Together with the barrel member (4) horizontally suspended by providing the ability lateral outside the housing at one end of the beam emitting portion of the barrel member (4) (5) above base of (1) (1
0), and raise the floor projection beam (B ₂₁ )
From the beam emitting portion (5) to the side of the base (1).
And configured to please, laser marking apparatus, characterized in that. In the laser marking apparatus according to the claim 1, upward vertical beam (B ₁₎ or to one of the optical path of the horizontal beam (B _3), it is perpendicular to a portion of the beam rod lenses ( 35a), and the rod lens ( 35a)
a) deflecting a part of the beam according to a)
The remaining part went straight, and was fan-shaped by the above deflection
To form a projection line (L ₁₁₎ on the walls by a projection beam (B _11), the other of the rectilinear beam (B _12), the projection line (L ₁₁₎ to form a beam spot (P ₁₎ on A laser marking device characterized in that: