WO2020110621A1

WO2020110621A1 - Laser marker

Info

Publication number: WO2020110621A1
Application number: PCT/JP2019/043219
Authority: WO
Inventors: 和浩中嶋; 慶介野口
Original assignee: ブラザー工業株式会社
Priority date: 2018-11-30
Filing date: 2019-11-05
Publication date: 2020-06-04
Also published as: JP2020082171A

Abstract

Provided is a laser marker capable of ensuring safety by restricting rotation of a housing in which a scanning unit for scanning laser light outward is housed. A laser marker 1 is provided with: a first housing 20 in which a laser light source is housed; a second housing 30 in which a galvano scanner 16 is housed; a connecting member 60 allowing the second housing 30 to rotate relative to the first housing 20; and a lock mechanism L which fixes the second housing 30 at a first rotation position or a second rotation position.

Description

Laser marker

The present disclosure relates to a laser marker.

Conventionally, various techniques have been proposed for laser markers that emit laser light. For example, the technique described in US Pat. No. 6,037,088 is a printing system that includes a bearing that allows the printing beam outlet member to rotate relative to the housing.

Japanese Patent Publication No. 2003-531010

In the technique described in Patent Document 1, when the printing beam outlet member is rotated through the bearing while the printing beam is being emitted outward from the printing beam outlet member, the printing beam is in an unexpected direction. There is a risk that it will be emitted to, which is dangerous.

Therefore, the present disclosure has been made in view of the above points, and secures safety by suppressing rotation of a housing that houses a scanning unit that scans laser light outward. A laser marker that can be used is provided.

The present specification describes a laser marker having a laser light source that emits laser light and a scanning unit that scans the laser light outward, and a first housing that houses the laser light source and a scanning unit. Second casing, a connecting portion that allows the second casing to rotate with respect to the first casing, and a lock mechanism that fixes the second casing at the first rotation position or the second rotation position. Disclosed is a laser marker including:

According to the present disclosure, the laser marker can ensure safety by suppressing the rotation of the second housing that houses the scanning unit that scans the laser light outward.

It is a figure showing the schematic structure of the laser marker of this embodiment. It is a perspective view showing the same laser marker. It is a perspective view showing a part of the same laser marker when the 2nd housing is being fixed to the 1st rotation position. It is a perspective view showing a part of the same laser marker when the 2nd case is being fixed to the 2nd rotation position. FIG. 4 is a plan view showing a part of the laser marker of FIG. 3. It is sectional drawing showing the same laser marker cut|disconnected by the line X1-X1 of FIG. FIG. 6 is a cross-sectional view showing the same laser marker taken along line Y1-Y1 of FIG. FIG. 6 is a cross-sectional view showing the same laser marker taken along line Y2-Y2 of FIG. 5. FIG. 5 is a plan view showing a part of the laser marker of FIG. 4. It is sectional drawing showing the same laser marker cut|disconnected by the line X1-X1 of FIG. It is sectional drawing showing the same laser marker cut|disconnected by the line Y1-Y1 of FIG. It is sectional drawing showing the same laser marker cut|disconnected by the line Y2-Y2 of FIG. It is a block diagram showing the electric constitution of the same laser marker. It is a figure showing the truth table of the same laser marker. It is a flowchart showing the electrical operation of the same laser marker. It is a figure showing the example of a change of the same laser marker.

Hereinafter, the laser marker of the present disclosure will be described based on a specific embodiment with reference to the drawings. In FIGS. 1 to 12 and FIG. 16 used in the following description, a part of the basic configuration is omitted and drawn, and the dimensional ratios of the drawn parts are not necessarily accurate. In the following description, the up-down direction, the front-rear direction, and the left-right direction are as shown in FIGS. 2 to 12 and 16.

As shown in FIG. 1, the laser marker 1 of the present embodiment includes a laser unit 10, a dichroic mirror 12, a reflection mirror 14, a galvano scanner 16, an fθ lens 18, and a visible semiconductor laser 19.

The laser unit 10 has a laser oscillator 10A, a beam expander 10B, and the like. The laser oscillator 10A is composed of a CO2 laser, a YAG laser, or the like, and emits a laser beam Q. The optical diameter of the laser light Q is adjusted (for example, expanded) by the beam expander 10B.

The visible semiconductor laser 19 emits visible laser light R that is visible coherent light, for example, red laser light. The visible laser light R is used, for example, to project an image of a print pattern to be marked (printed) with the laser light Q onto the object W to be processed. The wavelength of the visible laser light R is different from the wavelength of the laser light Q. In the present embodiment, for example, the wavelength of the laser light Q is 1064 nm and the wavelength of the visible laser light R is 650 nm.

In the dichroic mirror 12, almost all of the incident laser light Q is transmitted. Further, in the dichroic mirror 12, the visible laser light R is incident at an incident angle of 45 degrees at a substantially central position where the laser light Q is transmitted, and is reflected on the optical path of the laser light Q at a reflection angle of 45 degrees. The reflectance of the dichroic mirror 12 has wavelength dependence. Specifically, the dichroic mirror 12 is subjected to a surface treatment of a multilayer film structure of a dielectric layer and a metal layer, has a high reflectance with respect to the wavelength of the visible laser light R, and has a wavelength of other wavelengths. It is configured to transmit most (99%) of light.

The dotted line in FIG. 1 indicates the optical axis of the visible laser light R. On the other hand, the alternate long and short dash line in FIG. 1 indicates the optical axis of the laser light Q. Further, among the one-dot chain lines in FIG. 1, the one-dot chain line between the dichroic mirror 12 and the processing object W also shows the optical axis of the visible laser light R.

In the reflection mirror 14, the laser light Q that has passed through the dichroic mirror 12 and the visible laser light R that has reflected in the dichroic mirror 12 are reflected toward the galvano scanner 16.

The galvano scanner 16 two-dimensionally scans the laser light Q reflected by the reflection mirror 14 and the visible laser light R. In the galvano scanner 16, a galvano X-axis motor 17X and a galvano Y-axis motor 17Y shown in FIG. 13, which will be described later, are arranged such that their motor axes are orthogonal to each other, and are further attached to the tip ends of the motor shafts. The

scanning mirrors

16X and 16Y are made to face each other inside. In the galvano scanner 16 in such a state, when the

motors

17X and 17Y are drive-controlled, the

scanning mirrors

16X and 16Y rotate, and the laser light Q and the visible laser light R are two-dimensionally scanned. This two-dimensional scanning direction is the X direction and the Y direction.

The fθ lens 18 collects the laser light Q and the visible laser light R, which are two-dimensionally scanned by the galvano scanner 16, on the object W to be processed. Therefore, the laser light Q and the visible laser light R are two-dimensionally scanned on the workpiece W by the drive control of the

motors

17X and 17Y.

As shown in FIG. 2, the laser marker 1 of the present embodiment includes a first housing 20 and a second housing 30. The first housing 20 includes a rear first housing 20A and a front first housing 20B. The first rear housing 20A, the first front housing 20B, and the second housing 30 have a substantially rectangular parallelepiped shape.

The first rear housing 20A contains the laser unit 10 and the like, and has a rear main body 22A and a rear cover 24A. The laser unit 10 and the like are attached to the rear body 22A, and the rear cover 24A is fixed with a plurality of screws 26A. As a result, the laser unit 10 is housed in the first housing 20.

The front first housing 20B is attached to the rear main body 22A of the rear first housing 20A from the front side. The first front housing 20B contains the dichroic mirror 12, the reflection mirror 14, the visible semiconductor laser 19, and the like, and has a front main body 22B and a front cover 24B. The dichroic mirror 12, the reflection mirror 14, the visible semiconductor laser 19, and the like are attached to the front body 22B, and the front cover 24B is fixed with a plurality of screws 26B. As a result, the first housing 20 houses the dichroic mirror 12, the reflection mirror 14, and the visible semiconductor laser 19.

The second housing 30 incorporates the galvano scanner 16 and the like, and has a main body 32 and a cover 34. The galvano scanner 16 and the like are attached to the main body 32 (see FIGS. 6 and 10 described later), and the cover 34 is fixed with a plurality of screws 36. As a result, the galvano scanner 16 is housed in the second housing 30. Further, the body 32 of the second housing 30 is provided with the fθ lens 18 fitted therein (see FIGS. 4 and 6 described later). As a result, the galvano scanner 16 two-dimensionally scans the laser light Q and the visible laser light R reflected by the scanning mirrors 16X and 16Y, outside the laser marker 1 of the present embodiment, via the fθ lens 18. Is possible.

The cable C of the galvano scanner 16 is bridged between the second housing 30 and the rear first housing 20A. The cable C is drawn into the second housing 30 and the rear first housing 20A via the cable gland 200.

3 and 4 are perspective views showing the front portion of the laser marker 1 of the present embodiment with the front cover 24B removed from the front main body 22B. The laser marker 1 of this embodiment can change the orientation of the second housing 30 to the orientation shown in FIG. 3 or the orientation shown in FIG. 4. Therefore, the second housing 30 is rotatably provided with respect to the front first housing 20B by a connecting member 60 shown in FIG. The details of the connecting member 60 will be described later.

In the present embodiment, the case where the orientation of the second housing 30 is the orientation shown in FIG. 3 is referred to as “the (the rotational position of) the second housing 30 is at the first rotational position”. In this case Is in a state in which the fθ lens 18 faces downward. On the other hand, the case where the orientation of the second housing 30 is the orientation shown in FIG. 4 is referred to as “the (the rotational position of) the second housing 30 is in the second rotational position”. Is in a state in which the fθ lens 18 faces forward. The laser marker 1 of this embodiment can rotate the second housing 30 with respect to the first housing 20 between 0 degrees and 90 degrees.

Further, in the laser marker 1 of the present embodiment, the rotation position of the second housing 30 is changed to the first rotation position shown in FIG. 3 and the lock mechanism L shown in FIG. It is possible to fix it in the second rotation position shown in FIG. The lock mechanism L includes the pin 50 and the mounting plate 52 provided on the front main body 22B of the front first housing 20B, and the details thereof will be described later.

A transmission window 11 is provided at a position where the front first housing 20B is attached to the rear first housing 20A, extending between the front main body 22B and the rear main body 22A. In the transmission window 11, the laser light Q emitted from the laser unit 10 passes from the rear first housing 20A toward the front first housing 20B.

The holder 13, the disc 40, the first sensor S1, the second sensor S2, the reflection mirror 14 and the like are provided on the front main body 22B of the front first housing 20B. The holder 13 is attached to the front main body 22B. A visible semiconductor laser 19 is attached to the holder 13 in a state of being incorporated in a substrate (not shown). In addition, the dichroic mirror 12 and the like are attached to the holder 13. Further, a first sensor S1 and a second sensor S2 are attached to the front side wall surface of the holder 13. The first sensor S1 and the second sensor S2 are micro switches.

The disc 40 is provided with an opening in the center thereof and is rotatable with the second housing 30. The details will be described later. In the disc 40, a protrusion 42 is formed in a predetermined region on the outer periphery of the disc 40 so as to protrude toward the rear first housing 20A. Further, the detected portion 44 is formed on the protruding portion 42 in a state of protruding toward the rear first housing 20A.

As shown in FIG. 3, the detected portion 44 is pressed against the actuator portion of the first sensor S1 when the rotation position of the second housing 30 is at the first rotation position. Accordingly, the first sensor S1 detects that the rotation position of the second housing 30 is at the first rotation position. On the other hand, as shown in FIG. 4, when the rotation position of the second housing 30 is at the second rotation position, the detected portion 44 is pressed against the actuator portion of the second sensor S2. Be done. As a result, the second sensor S2 detects that the rotation position of the second housing 30 is at the second rotation position.

The first sensor S1 may be any type of sensor as long as it detects that the rotation position of the second housing 30 is at the first rotation position. Similarly, the second sensor S2 may be any type of sensor as long as it detects that the rotation position of the second housing 30 is at the second rotation position.

The reflection mirror 14 is attached to the front main body 22B of the front first housing 20B at a position facing the opening of the disc 40 in the front-rear direction and the vertical direction. However, the reflection mirror 14 is omitted in FIGS. 3 and 4. This point is the same in FIGS. 5, 7, 9, and 11 described later.

5 to 8 are diagrams showing the front portion of the laser marker 1 of the present embodiment when the turning position of the second housing 30 is at the first turning position. 5 to 7, the front cover 24B is shown in a state of being removed from the front main body 22B.

As shown in FIGS. 5 to 7, the connecting member 60 has a substantially cylindrical shape with both end surfaces facing each other in the left-right direction, and is arranged over the front first housing 20B and the second housing 30. It is set up. The left end of the connecting member 60 is fixed to the main body 32 of the second housing 30 with a screw 74 (see FIG. 5) via an O-ring 62 (see FIG. 6). On the other hand, the right end of the connecting member 60 is attached to the front main body 22B of the front first housing 20B via the X ring 64 (see FIG. 6). Accordingly, the connecting member 60 allows the second housing 30 to rotate with respect to the front first housing 20B. Further, the right end surface of the connecting member 60 is arranged in the front first housing 20B.

The disc 40 is fixed to the right end surface of the connecting member 60 with a screw 46 (see FIG. 7). As a result, the disc 40 rotates together with the second housing 30 via the connecting member 60. Further, the protruding portion 42 and the detected portion 44 are in a state of protruding from the outer peripheral surface of the right end of the connecting member 60 in the direction away from the rotation center 68 (see FIG. 8) of the connecting member 60. Furthermore, in the front first housing 20</b>B, the outer peripheral surface of the disc 40 and the protruding portion 42 and the detected portion 44 protruding from the disc 40 are outside the connecting member 60 more than the outer peripheral surface at the right end of the connecting member 60. It will be in a state of protruding toward. Accordingly, the connecting member 60 is provided so as not to come off from the front first housing 20B when the second housing 30 rotates with respect to the front first housing 20B. It should be noted that the protruding portion 42 and the detected portion 44 may be in a state of protruding from the outer peripheral surface of the connecting member 60 in the direction away from the rotation center 68 of the connecting member 60 near the right end of the connecting member 60.

In addition to that, the disk 40, the protruding portion 42, and the detected portion 44 are inscribed in the front first housing 20B. Furthermore, the left end of the connecting member 60 projects outward from the cylindrical portion of the connecting member 60 and is fixed in a state of being sandwiched between the front main body 22B of the front first housing 20B and the main body 32 of the second housing 30. Has been done. As a result, the second housing 30 can rotate with respect to the front first housing 20B without being displaced in the left-right direction.

As shown in FIGS. 6 and 7, the connecting member 60 has a hollow structure 66 in which cavities pass through at both end surfaces thereof. The cavity left side of the hollow structure 66 communicates with a through hole 38 provided in the main body 32 of the second housing 30. On the other hand, the right side of the hollow structure 66 communicates with the opening of the disc 40 in the front first housing 20B. As a result, the laser light Q and the visible laser light R are reflected by the reflection mirror 14 in the front first housing 20B, then pass through the hollow structure 66 of the connecting member 60, and the galvano scanner in the second housing 30. It is incident on 16.

However, the hollow structure 66 may be any structure as long as the laser light Q and the visible laser light R pass through from the front first housing 20B toward the second housing 30, and is not limited to the cylindrical structure. Therefore, for example, the hollow structure 66 may be a structure in which the cavity is exposed on the side surface of the connecting member 60. However, in such a case, the exposed portion of the cavity of the hollow structure 66 is shielded by the front main body 22B of the front first housing 20B or the main body 32 of the second housing 30.

As shown in FIG. 8, the lock mechanism L includes a housing side hole 29, a first hole 70, a second hole 72, and the like in addition to the pin 50 and the mounting plate 52 described above. The pin 50 has a collar portion 54 that projects outward from the outer peripheral surface of the shaft. The tip 56 of the pin 50 is formed in a tapered shape. A male screw 50A is threaded on the shaft of the pin 50 between the flange 54 and the tapered tip 56.

The housing-side hole 29 is provided in the front main body 22B of the front first housing 20B in a state of penetrating to the hole into which the right end of the connecting member 60 is inserted, and is formed in a step shape in the vertical direction. In the housing side hole portion 29, the inner diameter on the lower side is smaller than the inner diameter on the upper side. Further, in the housing side hole portion 29, a female screw 29A to be fitted with the male screw 50A of the pin 50 is threaded on the inner peripheral surface of the lower stage.

The mounting plate 52 is mounted on the upper surface of the front main body 22B of the front first housing 20B while being bent in a convex shape. The pin 50 is inserted into the housing side hole 29 while penetrating the mounting plate 52. As a result, the flange portion 54 of the pin 50 is arranged between the upper side of the housing side hole portion 29 and the mounting plate 52. Further, a coil spring 80 is arranged between the flange portion 54 of the pin 50 and the step surface of the housing side hole portion 29 with the shaft of the pin 50 being inserted therethrough. The upper end of the coil spring 80 is pressed against the collar portion 54 of the pin 50, and the lower end of the coil spring 80 is pressed against the step surface of the housing side hole 29. Therefore, the pin 50 is biased upward. However, when the pin 50 moves upward, the flange 54 abuts the mounting plate 52. As a result, the pin 50 is provided so as not to come off from the mounting plate 52.

The first hole portion 70 and the second hole portion 72 are provided in the connecting member 60. The first hole portion 70 and the second hole portion 72 are formed such that their inner diameters become smaller toward the inner side, so that the tip end 56 of the tapered pin 50 can be fitted while being guided. I have to. Therefore, the inner diameters of the first hole portion 70 and the second hole portion 72 are at least a predetermined depth range in which the first hole portion 70 and the second hole portion 72 can be fitted while guiding the tip 56 of the pin 50. In, it should just become small as it goes to the back.

The first hole portion 70 and the second hole portion 72 are arranged such that when the right end of the connecting member 60 is viewed from the direction (left-right direction) in which the right end of the connecting member 60 is inserted into the front first casing 20B, the connecting member 60 is rotated from the outer peripheral surface of the connecting member 60. It is formed toward the moving center 68. Further, a direction from the first hole 70 toward the rotation center 68 of the connecting member 60 (vertical direction in FIG. 8) and a direction from the second hole 72 toward the rotation center 68 of the connecting member 60 (left and right in FIG. 8). Direction) intersects at 90 degrees.

When the first sensor S1 and the second sensor S2 are viewed from the direction in which the front first housing 20B and the second housing 30 are arranged (the left-right direction), the first sensor S1 and the second sensor S2 are separated from the actuator section of the first sensor S1. The direction toward the rotation center 68 of the second housing 30 and the direction toward the rotation center 68 of the second housing 30 from the actuator portion of the second sensor S2 intersect at 90 degrees.

When the rotation position of the second housing 30 is at the first rotation position, the housing-side hole portion 29 of the front first housing 20B and the first hole portion 70 of the connecting member 60 communicate with each other. In this case, when the pin 50 is pushed down against the biasing force of the coil spring 80 and rotated in a predetermined direction, the tip 56 of the pin 50 projects downward from the housing side hole 29, and It is fitted into one hole 70. As a result, the second housing 30 is fixed in the first rotation position. At that time, although the pin 50 is biased upward by the coil spring 80, the male screw 50A of the pin 50 and the female screw 29A of the housing side hole portion 29 are fitted to each other so that the tip 56 of the pin 50 moves to the first position. It is in a state where it does not come out of the one hole 70.

On the other hand, when the pin 50 is rotated in the direction opposite to the predetermined direction, the male screw 50A of the pin 50 is disengaged from the female screw 29A of the housing side hole 29, and the tip 56 of the pin 50 is moved to the first hole. Get out of 70. At that time, the pin 50 moves upward due to the urging force of the coil spring 80 to be separated from the connecting member 60, and the tip end 56 of the pin 50 moves to a position where it comes out of the first hole 70. As a result, the state in which the second housing 30 is fixed at the first rotation position is released.

As shown in FIG. 7, in the front main body 22B of the front first housing 20B, the first wall surface portion 27 is provided on the upper side of the disc 40 and on the lower side of the disc 40. The second wall surface portion 28 is provided. On the other hand, the disc 40 has the first end surface portion 42A and the second end surface portion 42B of the protrusion 42 formed by the step between the outer peripheral surface of the disc 40 and the outer peripheral surface of the protrusion 42. ing.

Therefore, when the disk 40 fixed to the right end surface of the connecting member 60 rotates together with the second housing 30, the first end surface portion 42A of the disk 40 comes to the first wall surface portion 27 of the front first housing 20B. It abuts, or the second end surface portion 42B of the disc 40 abuts on the second wall surface portion 28 of the front first housing 20B. This limits the rotation range of the second housing 30. In FIG. 7, the first end surface portion 42A of the disc 40 is in a state of abutting against the first wall surface portion 27 of the front first housing 20B, and in such a state, the rotation position of the second housing 30 is the first position. 1 turn position.

9 to 12 are diagrams showing the front portion of the laser marker 1 of the present embodiment when the turning position of the second housing 30 is at the second turning position. 9 to 11, the front cover 24B is shown in a state of being removed from the front main body 22B. Note that FIGS. 9 to 12 correspond to FIGS. 5 to 8 when the rotation position of the second housing 30 is at the first rotation position. Therefore, in the following description, points common to the case where the rotation position of the second housing 30 is at the first rotation position will be omitted.

As shown in FIG. 11, when the second end surface portion 42B of the disc 40 comes into contact with the second wall surface portion 28 of the front first housing 20B, the turning position of the second housing 30 moves to the second position. It is in the rotating position.

When the turning position of the second housing 30 is at the second turning position, as shown in FIG. 12, the housing-side hole portion 29 of the front first housing 20B and the second hole of the connecting member 60 are formed. The part 72 communicates. In this case, when the pin 50 is pushed down against the biasing force of the coil spring 80 and rotated in a predetermined direction, the tip 56 of the pin 50 projects downward from the housing side hole 29, It is fitted into the second hole 72. As a result, the second housing 30 is fixed in the second rotation position. At that time, although the pin 50 is biased upward by the coil spring 80, the male screw 50A of the pin 50 and the female screw 29A of the housing side hole portion 29 are fitted to each other so that the tip 56 of the pin 50 moves to the first position. The two holes 72 are configured so as not to come out.

On the other hand, when the pin 50 is rotated in the direction opposite to the predetermined direction, the male screw 50A of the pin 50 is disengaged from the female screw 29A of the housing side hole 29, and the tip 56 of the pin 50 is moved to the second hole. Get out of 72. At that time, the pin 50 moves upward due to the urging force of the coil spring 80 and is separated from the connecting member 60, and the tip end 56 of the pin 50 moves to a position where it comes out of the second hole 72. As a result, the state in which the second housing 30 is fixed at the second rotation position is released.

As described above, with respect to the first wall surface portion 27 and the second wall surface portion 28 provided on the front main body 22B of the front first housing 20B, the connecting member 60 rotates together with the second housing 30, and the first wall surface portion 27 and the second wall surface portion 28 of the protruding portion 42. The rotation range of the second housing 30 is limited between the first rotation position and the second rotation position by the abutment of the first end surface portion 42A or the second end surface portion 42B. Further, the first hole portion 70 of the connecting member 60 corresponds to the first rotating position, and the second hole portion 72 of the connecting member 60 corresponds to the second rotating position.

In this way, the locking mechanism L fixes the second housing 30 at the first rotation position or the second rotation position by fixing the rotation of the connecting member 60 in the front first housing 20B. ..

Next, the electrical configuration of the laser marker 1 of this embodiment will be described. As shown in FIG. 13, the laser marker 1 of the present embodiment is composed of a print information creation unit 2 and a laser processing unit 3. First, the electrical configuration of the print information creation unit 2 will be described. The print information creation unit 2 includes an input operation unit 101, a control unit 103, a CD-R/W 113, a liquid crystal display (LCD) 115, and the like. An input operation unit 101, a CD-R/W 113, a liquid crystal display 115, etc. are connected to the control unit 103 via an input/output interface (not shown).

The input operation unit 101 is composed of a mouse, a keyboard, and the like (not shown). For example, the user selects the rotation position of the second housing 30 from the first rotation position and the second rotation position. Used when specifying.

The CD-R/W 113 reads various data and various application software from the CD-ROM 117 or writes them in the CD-ROM 117.

The control unit 103 controls the entire print information creation unit 2, and includes a CPU 105, a RAM 107, a ROM 109, a hard disk drive (hereinafter referred to as “HDD”) 111, and the like. The CPU 105 is an arithmetic unit and a control unit that controls the entire print information creation unit 2. The CPU 105, RAM 107, and ROM 109 are connected to each other by a bus line (not shown), and data is exchanged with each other. Further, the CPU 105 and the HDD 111 are connected via an input/output interface (not shown), and data is exchanged with each other.

The RAM 107 is for temporarily storing various calculation results calculated by the CPU 105. The ROM 109 stores various programs and the like. The HDD 111 stores various application software programs, various data files, and the like.

Next, the electrical configuration of the laser processing unit 3 will be described. The laser processing unit 3 includes a controller 201, a galvano driver 213, a semiconductor laser driver 215, a first sensor S1, a second sensor S2, a 24VDC/DC power supply unit (24VDCDC) 217, and the like.

The controller 201 controls the entire laser processing unit 3. A galvano driver 213, a semiconductor laser driver 215, a first sensor S1, a second sensor S2, a 24V DC/DC power supply unit 217, and the like are electrically connected to the controller 201. The print information creation unit 2 is connected to the controller 201 so as to be able to perform two-way communication, and each information transmitted from the print information creation unit 2 (for example, print information, control parameters for the laser processing unit 3, various information from the user). (Instruction information, etc.).

Note that various instruction information from the user includes designation information indicating a result designated by the user as the rotation position of the second housing 30 from the first rotation position and the second rotation position.

The controller 201 includes a CPU 203, a RAM 205, a ROM 207, an FPGA (Field-Programmable Gate Array) 211, and the like. The CPU 203 is an arithmetic unit and a control unit that controls the entire laser processing unit 3. The CPU 203, the RAM 205, the ROM 207, and the FPGA 211 are connected to each other by a bus line (not shown) to exchange data with each other. The RAM 205 is for temporarily storing various calculation results calculated by the CPU 203, XY coordinate data of print patterns, and the like.

The ROM 207 stores various programs. For example, the ROM 207 stores a program for calculating the XY coordinate data of the print pattern based on the print information transmitted from the print information creating unit 2 and storing the XY coordinate data in the RAM 205. There is. In addition to the programs described above, the various programs include, for example, the thickness, depth and number of the print pattern corresponding to the print information input from the print information creating unit 2, and the laser beam Q scanned by the galvano scanner 16. There is a program or the like for storing various control parameters indicating the speed to be controlled in the RAM 205. Further, the ROM 207 stores data such as font start point, end point, focus, curvature, etc. of each character constituted by a straight line and an elliptic arc for each font type.

The CPU 203 performs various calculations and controls based on various programs stored in the ROM 207.

The CPU 203 calculates XY coordinate data of the print pattern, galvano scanning speed information indicating the speed at which the galvano scanner 16 scans the laser beam Q, and the like, based on the print information input from the print information creating unit 2. Further, the CPU 203 calculates a drive angle, a rotation speed, etc. of the galvano X-axis motor 17X and the galvano Y-axis motor 17Y based on the respective information (for example, XY coordinate data of print pattern, galvano scanning speed information, etc.). The motor drive information indicating the drive angle and the rotation speed is output to the galvanometer driver 213.

The galvano driver 213 drives and controls the galvano X-axis motor 17X and the galvano Y-axis motor 17Y based on the motor drive information input from the controller 201, and two-dimensionally scans the laser light Q and the visible laser light R.

The CPU 203 outputs to the semiconductor laser driver 215 an ON signal for instructing to start lighting the visible semiconductor laser 19 or an OFF signal for instructing to turn off the visible semiconductor laser 19. The semiconductor laser driver 215 turns on or off the visible semiconductor laser 19 based on an on signal or an off signal input from the controller 201.

The FPGA 211 is built in the controller 201, and the galvano driver 213, the semiconductor laser driver 215, the first sensor S1, the second sensor S2, the 24V DC/DC power supply unit 217, etc. are electrically connected. A safety relay unit (hereinafter, referred to as “SRU”) 219 with a manual reset mode is electrically connected to the 24 VDC/DC power supply unit 217. As a result, the SRU 219 can be supplied with power from the 24V DC/DC power supply unit 217. A DC power relay (DCPR) 221 is electrically connected to the SRU 219. The DC power relay 221 is wired between the laser power supply 223 and the laser unit 10. The laser power supply 223 supplies electric power to the laser unit 10.

When the power supply to the SRU 219 is cut off by turning off the 24VDC/DC power supply unit 217 by the FPGA 211, the SRU 219 opens the contact of the DC power relay 221. Therefore, it becomes impossible to supply power to the laser unit 10 by the laser power supply 223. At that time, if the manual reset mode of the SRU 219 is set, the SRU 219 does not recover itself.

On the other hand, when the FPGA 211 turns on the 24VDC/DC power supply unit 217 to supply power to the SRU 219, the SRU 219 executes a manual reset and closes the contact of the DC power relay 221. .. Therefore, power can be supplied to the laser unit 10 by the laser power supply 223.

Each component of the laser processing unit 3 is housed in the above-described first housing 20 or second housing 30. Specifically, the galvano driver 213 is housed in the rear first housing 20A, and the galvano X-axis motor 17X and the galvano Y-axis motor 17Y are housed in the second housing 30. The galvano driver 213 and the

motors

17X and 17Y are electrically connected by the cable C described above.

The FPGA 211 incorporates the logic shown by the truth table 225 of FIG.

In the “First sensor” column of the truth table 225, “1” indicates that the contact of the first sensor S1 is closed. The contact of the first sensor S1 is closed by pressing the detected portion 44 against the actuator portion of the first sensor S1. In this case, the first sensor S1 outputs an ON signal as a detection signal, which indicates that the turning position of the second housing 30 is at the first turning position. The output ON signal is input to the FPGA 211. On the other hand, “0” indicates that the contact of the first sensor S1 is opened. The contact of the first sensor S1 is opened by separating the detected portion 44 from the actuator portion of the first sensor S1. In this case, the first sensor S1 does not output the ON signal, and outputs the OFF signal as a detection signal indicating that the rotation position of the second housing 30 is not at the first rotation position. The output off signal is input to the FPGA 211.

In the “Second sensor” column of the truth table 225, “1” indicates that the contact of the second sensor S2 is closed. The contact of the second sensor S2 is closed by pressing the detected part 44 against the actuator part of the second sensor S2. In this case, the second sensor S2 outputs an ON signal as a detection signal, which indicates that the rotation position of the second housing 30 is at the second rotation position. The output ON signal is input to the FPGA 211. On the other hand, “0” indicates that the contact of the second sensor S2 is opened. The contact point of the second sensor S2 is opened by separating the detected part 44 from the actuator part of the second sensor S2. In this case, the second sensor S2 does not output the ON signal, and outputs the OFF signal as the detection signal, which indicates that the rotation position of the second housing 30 is not at the second rotation position. The output off signal is input to the FPGA 211.

In the “sensor state” column of the truth table 225, “0 degree” indicates that both sensors S1 and S2 have detected that the rotation position of the second housing 30 is at the first rotation position. Shows. That is, when the fields of “first sensor” and “second sensor” are combinations of “1” and “0”, the ON signal of the first sensor S1 and the OFF signal of the second sensor S2 are input to the FPGA 211. As a result, both sensors S1 and S2 detect that the rotational position of the second housing 30 is the first rotational position. Therefore, "0 degree" is written in the "sensor state" column corresponding to this case. Further, "ON" is written in the column of "24 VDC DC" corresponding to this case. "ON" indicates that the 24V DC/DC power supply unit 217 is turned on. That is, the FPGA 211 in this case outputs a signal for turning on the 24V DC/DC power supply unit 217. The output signal is input to the 24 VDC/DC power supply unit 217. As a result, the 24V DC/DC power supply unit 217 is turned on, and power can be supplied to the laser unit 10.

In the “sensor state” column of the truth table 225, “90 degrees” indicates that both sensors S1 and S2 have detected that the rotation position of the second housing 30 is at the second rotation position. Shows. That is, when the fields of “first sensor” and “second sensor” are combinations of “0” and “1”, the OFF signal of the first sensor S1 and the ON signal of the second sensor S2 are input to the FPGA 211. Therefore, both sensors S1 and S2 detect that the rotation position of the second housing 30 is at the second rotation position. Therefore, “90 degrees” is written in the “sensor state” column corresponding to this case. Further, "ON" is written in the column of "24 VDC DC" corresponding to this case. "ON" indicates that the 24V DC/DC power supply unit 217 is turned on. That is, the FPGA 211 in this case outputs a signal for turning on the 24V DC/DC power supply unit 217. The output signal is input to the 24 VDC/DC power supply unit 217. As a result, the 24V DC/DC power supply unit 217 is turned on, and power can be supplied to the laser unit 10.

However, in the output of the FPGA 211 described above, the rotational position of the second housing 30 detected by both the sensors S1 and S2 matches the rotational position of the second housing 30 designated by the user through the input operation unit 101. It is performed on the condition.

In addition, when a signal for turning on the 24 VDC/DC power supply unit 217 is output, that is, in the truth table 225, the columns of “first sensor” and “second sensor” are “1” and “0”, respectively. When it is a combination or when the fields of “first sensor” and “second sensor” are “0” and “1”, the FPGA 211 drives the galvano X-axis motor 17X and the galvano Y-axis motor 17Y. A signal permitting control is output to the galvano driver 213, and a signal permitting lighting of the visible semiconductor laser 19 is output to the semiconductor laser driver 215.

That is, when the rotation position of the second housing 30 is at the first rotation position or the second rotation position, it becomes possible to supply power to the laser unit 10, and in addition, the galvano scanner 16 is provided with each power source. The drive control of the

motors

17X and 17Y becomes possible, and the visible semiconductor laser 19 can be turned on.

On the other hand, in the column of “sensor state” in the truth table 225, “in rotation” indicates that the rotation position of the second housing 30 is between the first rotation position and the second rotation position. A case is shown in which both sensors S1 and S2 detect that there is an occurrence. That is, when the fields of “first sensor” and “second sensor” are combinations of “0” and “0”, the off signal of the first sensor S1 and the off signal of the second sensor S2 are input to the FPGA 211. Therefore, the sensors S1 and S2 detect that the rotation position of the second housing 30 is between the first rotation position and the second rotation position. Therefore, "rotating" is described in the "sensor state" column corresponding to this case. Further, “OFF” is described in the column of “24 VDC DC” corresponding to this case. “OFF” indicates a case where the 24 VDC/DC power supply unit 217 is turned off. That is, the FPGA 211 in this case outputs a signal for turning off the 24 VDC/DC power supply unit 217. The output signal is input to the 24 VDC/DC power supply unit 217. As a result, the 24V DC/DC power supply unit 217 is turned off, and it becomes impossible to supply power to the laser unit 10.

In the “sensor state” column of the truth table 225, “NA” indicates that the detection signals of both sensors S1 and S2 are not valid. That is, when the fields of “first sensor” and “second sensor” are combinations of “1” and “1”, the ON signal of the first sensor S1 and the ON signal of the second sensor S2 are input to the FPGA 211. To be done. However, since it is difficult for the detected part 44 to be pressed against the actuator parts of both sensors S1 and S2 at the same time, it is estimated that the detection signals of both sensors S1 and S2 are not effective. Therefore, “NA” is written in the “sensor state” column corresponding to this case. Further, “NA” is written in the “24 VDC DC” column corresponding to this case. As described above, “NA” indicates a case where the detection signals of both sensors S1 and S2 are not valid. In this case, the FPGA 211 turns on the 24VDC/DC power supply unit 217 in the same manner as “OFF” described above. Output the signal to turn off. The output signal is input to the 24 VDC/DC power supply unit 217. As a result, the 24V DC/DC power supply unit 217 is turned off, and it becomes impossible to supply power to the laser unit 10.

When a signal for turning off the 24VDC/DC power supply unit 217 is output, that is, in the truth table 225, “0” and “0” are displayed in the columns of “first sensor” and “second sensor”, respectively. When it is a combination or when the fields of “first sensor” and “second sensor” are a combination of “1” and “1”, the FPGA 211 drives the galvano X-axis motor 17X and the galvano Y-axis motor 17Y. A signal for stopping the control is output to the galvano driver 213, and an off signal for instructing to turn off the visible semiconductor laser 19 is output to the semiconductor laser driver 215.

That is, when the rotation position of the second housing 30 is between the first rotation position and the second rotation position, or when the detection signals of both sensors S1 and S2 are not valid, the laser unit 10 is operated. In addition to the fact that the electric power cannot be supplied, the drive control of the

motors

17X and 17Y of the galvano scanner 16 is stopped, and the visible semiconductor laser 19 is turned off. In this case, the power supply to the galvano scanner 16 and the visible semiconductor laser 19 may be cut off.

Next, the emission control of the laser marker 1 of this embodiment will be described. The emission control program represented by the flowchart of FIG. 15 is stored in the ROM 207 of the controller 201 and executed by the CPU 203 of the controller 201. Further, this program is executed by turning on the power of the laser marker 1. In the emission control program represented by the flowchart of FIG. 15, first, in step (hereinafter, simply referred to as “S”) 10, designated information acquisition processing is executed.

In this process, the designation information input to the controller 201 from the print information creation unit 2 is acquired, and the designation result is specified based on the designation information. The designation result is a result that the user designates either the first rotation position or the second rotation position as the rotation position of the second housing 30 via the input operation unit 101. The process of the next step is not executed until the user's designated result is specified.

When the result designated by the user is specified, the detection signal acquisition process S12 is executed. In this process, the detection signal of the first sensor S1 and the detection signal of the second sensor S2 are acquired. The detection signals of both sensors S1 and S2 are ON signals or OFF signals.

When the detection signals of both sensors S1 and S2 are acquired, the sensor state determination process S14 is executed. This determination is made based on the detection signals of both sensors S1 and S2.

When both the detection signals of both sensors S1 and S2 are OFF signals (S14;0,0), or when both detection signals of both sensors S1 and S2 are ON signals (S14;1,1), The non-ejecting process S16 is executed. This processing is performed by inputting the detection signals of both sensors S1 and S2 to the FPGA 211. Thereby, in the laser marker 1 of the present embodiment, when the rotation position of the second housing 30 is between the first rotation position and the second rotation position, or the detection signals of both sensors S1 and S2 are valid. If not, power cannot be supplied to the laser unit 10, and the laser light Q cannot be emitted to the outside of the second housing 30. Further, in the laser marker 1 of the present embodiment, the drive control of the

motors

17X and 17Y of the galvano scanner 16 is stopped, and the visible semiconductor laser 19 is turned off.

When the extraction impossibility process S16 is executed, the notification process S18 is executed. In this processing, information is input from the controller 201 to the print information creation unit 2, and a message indicating that the rotation position of the second housing 30 is other than the first rotation position and the second rotation position is displayed. It is displayed on the liquid crystal display 115. As a result, the user is notified that the rotation position of the second housing 30 is other than the first rotation position and the second rotation position. It should be noted that such notification may be performed by sound of a speaker, light of a rotating lamp, or the like. After that, the above-mentioned specified information acquisition processing S10 is executed again.

On the other hand, when the detection signal of the first sensor S1 is the ON signal and the detection signal of the second sensor S2 is the OFF signal (S14;1,0), or the detection signal of the first sensor S1 is the OFF signal. When the detection signal of the two sensors S2 is an ON signal (S14; 0, 1), a determination process S20 is performed to determine whether the sensor state matches the designated information. This process is performed based on the detection signals of both sensors S1 and S2 acquired in S12 and the designation result specified in S10. That is, the rotation position of the second housing 30 specified by the detection signals of the sensors S1 and S2 is the rotation position of the second housing 30 designated by the user via the input operation unit 101 (first rotation). Position) or the second rotation position).

When the sensor state does not match the designation information (S20: NO), that is, the turning position of the second housing 30 identified by the detection signals of both sensors S1 and S2 is designated by the user via the input operation unit 101. When the rotation position of the second housing 30 does not match, the extraction impossibility process S16 described above is executed. As a result, the laser marker 1 of the present embodiment specifies the rotation position of the second housing 30 by the user even when the rotation position of the second housing 30 is the first rotation position or the second rotation position. If the rotated position does not match, the power supply to the laser unit 10 becomes impossible, the drive control of the

motors

In this case, a pop-up for prompting the user to specify the rotation position of the second housing 30 by the input operation unit 101 by inputting information from the controller 201 to the print information creation unit 2 The window is displayed on the liquid crystal display 115.

On the other hand, when the sensor state matches the designated information (S20: YES), that is, the turning position of the second housing 30 specified by the detection signals of both the sensors S1 and S2 is input by the user. When the rotation position of the second housing 30 designated via 101 coincides, the detection signal acquisition processing S22 is executed. This processing is the same as the above-described detection signal acquisition processing S12.

When the detection signal acquisition processing S22 is executed, the determination processing S24 of whether or not the sensor state is changed is executed. In this process, it is determined whether or not the detection signals of both sensors S1 and S2 acquired in the main detection signal acquisition process S22 and the detection signals of both sensors S1 and S2 acquired in the above-mentioned detection signal acquisition process S12 match. Is determined.

When the detection signals of both sensors S1 and S2 acquired in both detection signal acquisition processes S12 and S22 do not match, the rotational position of the second housing 30 is different at the time of both detection signal acquisition processes S12 and S22. Therefore, it is determined that the sensor state has been changed (S24: YES). In such a case, the extraction impossibility process S16 described above is executed. As a result, in the laser marker 1 of the present embodiment, the rotation position of the second housing 30 is at the first rotation position or the second rotation position, and the rotation position of the second housing 30 and the rotation designated by the user. Even if the moving position matches, if the turning position of the second housing 30 is changed, the power supply to the laser unit 10 becomes impossible, and the

motors

17X and 17Y of the galvano scanner 16 cannot be supplied. The drive control is stopped, and the visible semiconductor laser 19 is turned off.

On the other hand, when the detection signals of both sensors S1 and S2 acquired in both detection signal acquisition processes S12 and S22 are the same, both of the detection signal acquisition processes S12 and S22 are performed in the second housing 30. Since the turning positions are the same, it is determined that the sensor state has not been changed (S24: NO). In such a case, the extraction enable process S26 is executed. This processing is performed by inputting the detection signals of both sensors S1 and S2 to the FPGA 211. As a result, in the laser marker 1 of the present embodiment, the rotation position of the second housing 30 is at the first rotation position or the second rotation position, and the rotation position of the second housing 30 and the rotation designated by the user. When the moving position matches the rotation position of the second housing 30, the power supply to the laser unit 10 becomes possible, so that the laser light Q is emitted from the second housing 30. It becomes a state in which it can be emitted to the outside. Further, the laser marker 1 of the present embodiment is in a state in which the drive control of the

motors

17X and 17Y of the galvano scanner 16 is possible and the visible semiconductor laser 19 is in a state in which it can be turned on.

As described in detail above, the laser marker 1 according to the present embodiment includes the first housing 20 that houses the laser unit 10 that emits the laser light Q and the galvano scanner 16 that scans the laser light Q outward. The second housing 30 is provided, and the second housing 30 is rotatable with respect to the first housing 20 by the connecting member 60. However, the second housing 30 is fixed by the lock mechanism L at the first rotation position or the second rotation position. As a result, the laser marker 1 of the present embodiment suppresses the rotation of the second housing 30 in which the galvano scanner 16 that scans the laser light Q toward the outside of the second housing 30 is housed. Therefore, it is possible to ensure safety.

In addition, in the laser marker 1 of the present embodiment, the connecting member 60 has a hollow structure 66 through which the laser light Q passes from the first housing 20 toward the second housing 30. The left end of the connecting member 60 is fixed to the second housing 30, and the right end of the connecting member 60 is rotatably inserted in the first housing 20. Further, the lock mechanism L fixes the rotation of the connecting member 60 in the first housing 20. As a result, the lock mechanism L fixes the connecting member 60, which serves as the rotation axis of the second housing 30, in the first housing 20, so that the laser marker 1 of the present embodiment moves the second housing 30 to the first position. It is possible to accurately fix the movable position or the second rotation position.

Further, in the laser marker 1 of the present embodiment, the lock mechanism L inserts the pin 50, the housing side hole portion 29 of the first housing 20 through which the pin 50 penetrates, and the pin 50 protruding from the housing side hole portion 29. The connecting member 60 includes a first hole portion 70 and a second hole portion 72. As a result, the lock mechanism L fixes the rotation of the connecting member 60 like the positioning using the pin and the hole, so that the laser marker 1 of the present embodiment causes the second housing 30 to rotate by the first rotation. It is possible to securely fix the position or the second rotation position.

Further, in the laser marker 1 of the present embodiment, the first hole portion 70 corresponds to the first rotation position of the second housing 30, and the second hole portion 72 corresponds to the second rotation position of the second housing 30. is doing. Furthermore, when the first hole 70 and the second hole 72 are viewed from the direction (left-right direction) in which the right end of the connecting member 60 is inserted into the front first housing 20B, the connecting member 60 is rotated from the first hole 70. The direction toward the movement center 68 and the direction from the second hole 72 toward the rotation center 68 of the connecting member 60 are orthogonal to each other. Therefore, in the laser marker 1 of the present embodiment, the emission direction of the laser light Q when in the first rotation position and the emission direction of the laser light Q when the second housing 30 is in the second rotation position. It is configured so as to be surely in an orthogonal relationship.

Further, in the laser marker 1 of the present embodiment, the male screw 50A is provided on the pin 50, and the female screw 29A screwed with the male screw 50A is provided on the housing side hole portion 29. Accordingly, the lock mechanism L fixes the rotation of the connecting member 60 while screwing the male screw 50A of the pin 50 and the female screw 29A of the housing side hole 29, so that the laser marker 1 of the present embodiment is It is possible to more reliably fix the second housing 30 to the first rotation position or the second rotation position.

Further, in the laser marker 1 of the present embodiment, the tip 56 of the pin 50 is tapered. As a result, the lock mechanism L fixes the rotation of the connecting member 60 while guiding the pin 50 to the first hole portion 70 or the second hole portion 72 of the connecting member 60 by the tapered tip 56. The laser marker 1 of the embodiment can easily fix the second housing 30 at the first rotation position or the second rotation position.

Further, in the laser marker 1 of the present embodiment, the inner diameters of the first hole portion 70 and the second hole portion 72 are formed so as to become smaller toward the inner side. As a result, the lock mechanism L fixes the rotation of the connecting member 60 while fitting the tip 56 of the tapered pin 50 into the first hole portion 70 or the second hole portion 72, so that the laser marker 1 according to the present embodiment. It is possible to more easily fix the second housing 30 to the first rotation position or the second rotation position.

In addition, in the laser marker 1 of the present embodiment, the pin 50 is biased by the coil spring 80 in the direction (upward direction) of coming out of the first hole 70 or the second hole 72 until it is separated from the connecting member 60. .. As a result, the lock mechanism L releases the rotational fixing of the connecting member 60 while utilizing the urging force of the coil spring 80. Therefore, in the laser marker 1 of the present embodiment, the second housing 30 has the first rotational position. Alternatively, the state of being fixed to the second rotation position can be easily released.

Further, in the laser marker 1 of the present embodiment, the protruding portion 42 of the disc 40 fixed to the right end surface of the connecting member 60 is away from the outer peripheral surface of the right end of the connecting member 60 from the rotation center 68 of the connecting member 60. Is protruding. The first housing 20 is provided with a first wall surface portion 27 and a second wall surface portion 28 on the upper side and the lower side of the disc 40. When the connecting member 60 rotates together with the second housing 30, the first end surface portion 42A or the second end surface portion 42B of the protruding portion 42 of the disc 40 abuts the first wall surface portion 27 or the second wall surface portion 28. When the first end surface portion 42A of the protruding portion 42 of the disc 40 hits the first wall surface portion 27, the second housing 30 is in the first rotation position, and the second end surface portion 42B of the protruding portion 42 of the disc 40 is in position. The second housing 30 is in the second rotation position when the second housing 30 hits the second wall surface portion 28. As a result, in the laser marker 1 according to the present embodiment, the lock mechanism L can limit the rotation range of the second housing 30 and the connecting member 60 between the first rotation position and the second rotation position. It is possible.

Incidentally, in the present embodiment, the laser unit 10 is an example of a “laser light source”. The galvano scanner 16 is an example of a “scanning unit”. The 1st wall surface part 27 and the 2nd wall surface part 28 are examples of a "stop part." The connecting member 60 is an example of a “connecting portion”. The left end of the connecting member 60 is an example of “one end of the connecting portion”. The right end of the connecting member 60 is an example of “the other end of the connecting portion”. The rotation center 68 of the connecting member 60 is an example of “the rotation center of the connecting portion”. The coil spring 80 is an example of a “first biasing member”. The 1st hole part 70 and the 2nd hole part 72 are examples of a "connection part side hole part." The outside of the second housing 30 is an example of “the outside”. The left-right direction is an example of “a direction in which the other end of the connecting portion is inserted into the first housing”. The vertical direction in FIG. 8 is an example of the “first direction”. The front-back direction in FIG. 8 is an example of the “second direction”. The upward direction is an example of "a direction in which the pin comes out of the connecting portion side hole portion".

Note that the present disclosure is not limited to the present embodiment, and various modifications can be made without departing from the spirit of the present disclosure. For example, the laser marker 1 of the present embodiment may be configured by the print information creation unit 2 and the laser processing unit 3 as described above, or may be configured by only the laser processing unit 3.

Further, the right end of the connecting member 60 may be fixed to the front main body 22B of the front first housing 20B, and the left end of the connecting member 60 may be rotatably inserted into the main body 32 of the second housing 30. .. However, in such a case, the lock mechanism L fixes the second housing 30 at the first rotation position or the second rotation position by fixing the rotation of the connecting member 60 in the second housing 30. To do.

Even in such a modified example, since the lock mechanism L fixes the connecting member 60, which serves as the rotation axis of the second housing 30, in the second housing 30, the second housing 30 is moved to the first rotation position or It is possible to accurately fix the second rotation position.

Further, the connecting member 60 may project from the main body 32 of the second housing 30 or the front main body 22B of the front first housing 20B.

The second housing 30 may be provided on the front side of the front first housing 20B. In such a case, the second housing 30 is arranged on the optical paths of the laser light Q and the visible laser light R that longitudinally cross the inside of the front first housing 20B. Therefore, the reflection mirror 14 becomes unnecessary.

Further, as shown in FIG. 16, the coil spring 80 may be arranged between the mounting plate 52 and the collar portion 54 of the pin 50. In such a case, the pin 50 is urged by the coil spring 80 from the housing side hole portion 29 toward the connecting portion 90 (downward). Therefore, when the rotation position of the second housing 30 is not at the first rotation position and the second rotation position, the pin 50 contacts the outer peripheral surface of the connecting member 60.

In such a modified example, when the rotation position of the second housing 30 becomes the first rotation position or the second rotation position by the rotation of the second housing 30, the pin 50 is connected by the coil spring 80. The outer peripheral surface of 60 is inserted into the first hole 70 or the second hole 72. Therefore, when the user turns the turning position of the second housing 30 to the first turning position or the second turning position, the pin 50 causes the coil spring 80 to be inserted into the first hole 70 or the second hole 72. It is possible to obtain a click feeling caused by being inserted in.

Incidentally, in this modification, the coil spring 80 shown in FIG. 16 is an example of the “second biasing member”.

Further, one of the first housing 20 and the second housing 30 is provided with a pin, and the hole through which the pin is provided is provided in the other housing, whereby the lock mechanism L is configured. Good. Alternatively, the lock mechanism L may be configured by providing holes in both the first housing 20 and the second housing 30 and inserting pins into both holes.

Even in such a modified example, since the lock mechanism L fixes the rotation of the connecting member 60 like the positioning using the pin and the hole, the second housing 30 is moved to the first rotation position or the second rotation position. It is possible to securely fix it in the rotating position.

The lock mechanism L may be configured by a clamp that tightens and fixes the first housing 20 and the second housing 30.

Alternatively, one of the first housing 20 and the second housing 30 is provided with the claw portion, and the groove portion for locking the claw portion is provided in the other housing, whereby the lock mechanism L is provided. It may be configured. In such a case, the claw portion is locked in the groove portion by the rotation of the second housing 30 when the rotation position of the second housing 30 is at the first rotation position and the second rotation position, When the turning position of the second housing 30 is between the first turning position and the second turning position, the second housing 30 comes off the groove. The claw portion or the groove portion may be provided on the connecting member 60.

The tip 56 of the pin 50 does not have to be tapered. In such a case, the first hole portion 70 and the second hole portion 72 are formed such that their inner diameters become smaller toward the inner side, as in the present embodiment, so that the pin 50 becomes the first hole. It is guided to the hole 70 and the second hole 72. In addition, the first hole portion 70 and the second hole portion 72 do not have to be formed so that the inner diameters thereof become smaller toward the inner side. In such a case, the tip end 56 of the pin 50 is formed in a tapered shape as in the present embodiment, so that the pin 50 is guided to the first hole portion 70 and the second hole portion 72.

Further, the rotation position of the second housing 30 may be indicated by a high signal and a low signal, or is indicated by information, unlike the present embodiment shown by the binary signal of the ON signal and the OFF signal. You may.

The emission control of the laser marker 1 of this embodiment may be executed only by the FGPA 211 or only by the CPU 203.

Further, in the non-emission process S16, the laser beam Q or the visible laser beam is maintained while the laser unit 10 is emitting the laser beam Q or the visible semiconductor laser 19 is emitting the visible laser beam R. It may be performed by moving the shielding plate on the optical path of the light R. However, in such a case, the emission enable process S26 is executed by moving the shield plate from the optical path of the laser light Q or the visible laser light R.

1: Laser marker, 10: Laser unit, 16: Galvano scanner, 20: First housing, 27: First wall surface portion, 28: Second wall surface portion, 29: Housing side hole portion, 29A: Female screw, 30: First 2 housings, 42: protruding portion, 50: pin, 56: tip of pin, 50A: male screw, 60: connecting member, 66: hollow structure, 68: rotation center of connecting member, 70: first hole portion, 72: Second hole, 80: Coil spring, L: Lock mechanism, Q: Laser light

Claims

A laser marker having a laser light source that emits laser light and a scanning unit that scans the laser light toward the outside,
A first housing containing the laser light source;
A second housing containing the scanning unit;
A connecting portion that allows the second housing to rotate with respect to the first housing;
A laser marker, comprising: a lock mechanism that fixes the second housing at a first rotation position or a second rotation position.
The connecting portion is a hollow structure through which the laser light passes from the first housing toward the second housing,
One end of the connecting portion is fixed to one of the first housing and the second housing, and the other end of the connecting portion is rotatably inserted into the other housing.
The laser marker according to claim 1, wherein the lock mechanism fixes rotation of the connecting portion in the other casing.
The laser marker according to claim 2, wherein the one housing is the second housing and the other housing is the first housing.
The locking mechanism is
idea,
The laser marker according to claim 1, further comprising a hole through which the pin is inserted.
The locking mechanism is
idea,
A housing side hole provided in the first housing and through which the pin penetrates,
The laser marker according to claim 3, further comprising: a connecting portion side hole portion provided in the connecting portion and through which the pin protruding from the housing side hole portion is inserted.
The connecting portion side hole portion,
A first hole corresponding to the first rotation position;
A second hole corresponding to the second rotation position,
When viewed from the direction in which the other end of the connecting portion is inserted into the first housing, the first direction from the first hole portion toward the rotation center of the connecting portion and the second hole portion from the connecting portion The laser marker according to claim 5, wherein the second direction toward the center of rotation is orthogonal to the second direction.
A male screw provided on the pin,
The laser marker according to claim 5 or 6, further comprising a female screw provided in the housing side hole portion and screwed into the male screw.
The laser marker according to any one of claims 5 to 7, wherein the tip of the pin is tapered.
The laser marker according to any one of claims 5 to 8, wherein the inner diameter of the connecting portion side hole portion becomes smaller as it goes deeper, at least up to a predetermined depth.
The locking mechanism is
10. The first urging member for urging the pin in the direction in which the pin comes out of the connecting portion side hole until the pin is separated from the connecting portion, according to any one of claims 5 to 9. The laser marker described in any one.
The locking mechanism is
10. A second urging member for urging the pin from the housing side hole toward the connecting portion until the pin abuts on the connecting portion, according to any one of claims 5 to 9. The laser marker described in one.
The locking mechanism is
From the outer peripheral surface of the other end of the connecting portion, a protruding portion protruding in a direction away from the center of rotation of the connecting portion,
The rotation range of the second housing is provided on the first housing, and the connecting portion rotates together with the second housing to abut the projecting portion. The laser marker according to any one of claims 5 to 11, further comprising: a stop portion that restricts between two rotation positions.