Light path collimation judgment device and laser processing equipment

Abstract

The utility model discloses a light path collimation judgment device and laser processing equipment. The light path collimation judgment device comprises a light blocking cross layer, an imaging paper placement layer and imaging paper, the light-blocking cross layer comprises a light-blocking cross, a first light-transmitting hole is formed in the light-blocking cross layer, the center of the light-blocking cross coincides with the axis of the first light-transmitting hole, and the light-blocking cross extends in the radial direction of the first light-transmitting hole; the first end of the light blocking cross layer is suitable for being connected with the avoiding hole in an inserted mode. The imaging paper placing layer is connected to the second end of the light blocking cross layer, and the imaging paper placing layer and the light blocking cross layer define an imaging paper placing groove; the light-blocking cross layer comprises a plurality of light-blocking cross sub-layers arranged in the axial direction of the first light hole, and each light-blocking cross sub-layer is provided with a light-blocking cross; and a worker does not need to hold imaging paper for imaging, so that the measurement safety is greatly improved, the imaging paper is prevented from moving, and the measurement accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment technology, and in particular to an optical path collimation determination device and laser processing equipment. Background Technology

[0002] Laser processing equipment typically consists of a laser emitter and a galvanometer. The higher the collimation of the last laser beam before entering the galvanometer relative to it, the better the processing quality. Some laser processing equipment (such as laser drilling equipment) is designed with a fixed device at the incident end of the galvanometer to detect the collimation of the laser beam path, while the exit end of the laser emitter uses a movable crosshair as the collimator to detect the laser beam path. This crosshair is located outside the detection device and is easily accidentally touched during adjustment and measurement, leading to measurement distortion and affecting the laser collimation measurement.

[0003] In response, existing technologies have proposed using a cylindrical collimation measuring device, with the device placed at the emitting end of the laser emitter and the crosshair inside the cylinder. However, this approach requires manual handling of the imaging paper or the use of expensive image detection equipment when acquiring measurement images, resulting in low safety or high manufacturing and usage costs. Furthermore, the crosshair needs to be frequently replaced after aging due to laser irradiation, affecting measurement timeliness. Additionally, when adjusting the collimation of the measurement images obtained by the crosshair, adjustments are difficult when the collimation deviation is small. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an optical path collimation determination device and a laser processing equipment. It can prevent accidental contact by workers by embedding a light-blocking crossbar within the light-blocking crossbar layer; and it provides an imaging paper placement slot to hold the imaging paper, reducing the manufacturing cost of the optical path collimation determination device while improving safety; furthermore, removing an aged light-blocking crossbar layer does not affect its measurement function; and it can also divide the projection of the first light-transmitting hole into several equal parts. The more parts the projection is divided into, the easier it is to see the deviation direction of the laser, which is more conducive to fine adjustment of the laser emitter.

[0005] On one hand, this utility model embodiment provides an optical path collimation determination device, installed on a laser processing equipment. The laser processing equipment includes a machine base, a galvanometer, and a laser emitter. The galvanometer and the laser emitter are connected to the machine base, and the machine base has an clearance hole corresponding to the emitting end of the laser emitter.

[0006] A light-blocking cross layer includes a light-blocking cross, the light-blocking cross layer has a first light-transmitting hole, the center of the light-blocking cross coincides with the axis of the first light-transmitting hole, and the light-blocking cross extends radially along the first light-transmitting hole; a first end of the light-blocking cross layer is adapted to be inserted into the clearance hole;

[0007] An imaging paper placement layer is connected to the second end of the light-blocking cross layer. The first end and the second end are arranged opposite to each other. The imaging paper placement layer and the light-blocking cross layer enclose an imaging paper placement groove. The imaging paper placement layer is provided with a second light-transmitting hole coaxial with the first light-transmitting hole.

[0008] Imaging paper is placed in the imaging paper placement slot to separate the first light-transmitting hole from the second light-transmitting hole;

[0009] The light-blocking cross layer includes multiple light-blocking cross sub-layers arranged along the axial direction of the first light-transmitting hole, and each light-blocking cross sub-layer is provided with one light-blocking cross;

[0010] On the orthogonal projection of the first light-transmitting hole along its axial direction, the projections of the light-blocking crosses of the plurality of light-blocking cross sub-layers overlap.

[0011] or,

[0012] On the axial orthogonal projection of the first light-transmitting hole, the projections of the multiple light-blocking cross layers are staggered, which is suitable for dividing the projection of the first light-transmitting hole into several parts.

[0013] According to some embodiments of the present invention, the light-blocking cross layer includes an insertion section and an abutment section arranged in a stepped manner along the extension direction of the first light-transmitting hole. The insertion section is inserted into the clearance hole, and the abutment section abuts against the machine platform.

[0014] According to some embodiments of the present invention, the imaging paper placement layer is detachably connected to the light-blocking cross layer;

[0015] And / or,

[0016] The imaging paper placement slot is a slot that extends radially from the outside to the inside along the second light-transmitting hole.

[0017] According to some embodiments of the present invention, the light-blocking cross sublayer is provided with two mounting through holes, the axes of the two mounting through holes are perpendicular to each other and arranged radially along the first light-transmitting hole;

[0018] The light-blocking cross includes two vertically arranged metal wires, each of which is fixed in one of the mounting through holes.

[0019] According to some embodiments of the present invention, the light-blocking cross layer is provided with a wire-pressing thread hole, the axis of the wire-pressing thread hole is perpendicular to the extension direction of the metal wire, the wire-pressing thread hole is adapted to be threadedly engaged with a pressing screw, and the pressing screw is used to press and fix the metal wire.

[0020] According to some embodiments of the present invention, adjacent light-blocking cross sub-layers are detachably connected;

[0021] One of the adjacent light-blocking cross layers is provided with a mounting threaded hole, and the other is provided with a clearance through hole. The clearance through hole and the mounting threaded hole are fixed together by connecting screws.

[0022] According to some embodiments of the present invention, the light-blocking cross layer is provided with a shearing groove, which is formed by recessing from the outer wall of the light-blocking cross layer inward, and the shearing groove communicates with the mounting through hole, and the cross-sectional area of ​​the shearing groove is larger than the cross-sectional area of ​​the mounting through hole.

[0023] According to some embodiments of the present invention, the bottom partial surface of the shearing clearance groove is recessed toward the center of the light-blocking cross layer to form a pressure clearance groove. The pressure clearance groove connects the pressure wire thread hole and the mounting through hole. The pressure screw presses against the metal wire through the pressure wire thread hole and the pressure clearance groove.

[0024] On the other hand, this utility model embodiment also provides a laser processing equipment, including the optical path collimation determination device as described above.

[0025] The present invention has at least the following beneficial effects: by setting a light-blocking cross layer to place the light-blocking cross and fixing the light-blocking cross layer in the clearance hole, it avoids the staff touching the light-blocking cross during measurement or debugging, ensuring the consistency of the position of the light-blocking cross during each imaging; and by using an imaging paper placement slot to place the imaging paper, it avoids the staff holding the imaging paper to form an image, greatly improving measurement safety and preventing the imaging paper from moving, thus improving measurement accuracy; furthermore, the multiple overlapping projections of the light-blocking cross ensure that the optical path collimation determination device does not affect its measurement function after removing an aged light-blocking cross layer; and the multiple misaligned projections of the light-blocking cross layer are suitable for dividing the projection of the first light-transmitting hole into several parts. The more parts the projection is divided into, the easier it is to see the deviation direction of the laser, which is more conducive to the fine adjustment of the laser emitter.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic diagram of the optical path collimation determination device according to an embodiment of the present invention;

[0029] Figure 2 This is a front view of the optical path collimation determination device according to an embodiment of the present invention;

[0030] Figure 3 for Figure 2 A sectional view along section line AA;

[0031] Figure 4 This is a schematic diagram of the structure of the laser processing equipment according to an embodiment of the present invention.

[0032] Figure label:

[0033] 10. Optical path collimation determination device;

[0034] 100. Light-blocking cross layer; 110. Light-blocking cross sub-layer; 111. Light-blocking cross; 1110. Metal wire; 112. Threaded hole; 113. Mounting through hole; 114. Shearing clearance groove; 115. Pressing clearance groove; 120. First light-transmitting hole; 130. Abutting section; 140. Insertion section;

[0035] 200, Imaging paper placement layer; 210, Imaging paper placement slot; 220, Second light-transmitting hole;

[0036] 910. Machine base; 911. Clearance hole; 920. Galvanometer; 930. Laser emitter. Detailed Implementation

[0037] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0041] Please refer to Figures 1 to 4 As shown, in one aspect, this utility model embodiment provides an optical path collimation determination device 10, installed on a laser processing equipment. The laser processing equipment includes a machine base 910, a galvanometer 920, and a laser emitter 930. The galvanometer 920 and the laser emitter 930 are connected to the machine base 910, and the machine base 910 is provided with an obstacle hole 911 corresponding to the emitting end of the laser emitter 930. The optical path collimation determination device 10 includes a light-blocking cross layer 100, an imaging paper placement layer 200, and imaging paper. The light-blocking cross layer 100 includes a light-blocking cross 111, and the light-blocking cross layer 100 is provided with a first light-transmitting hole 120. The center coincides with the axis of the first light-transmitting hole 120, and the light-blocking cross 111 extends radially along the first light-transmitting hole 120; the first end of the light-blocking cross layer 100 is adapted to be inserted into the clearance hole 911; the imaging paper placement layer 200 is connected to the second end of the light-blocking cross layer 100, the first end and the second end are arranged opposite to each other, the imaging paper placement layer 200 and the light-blocking cross layer 100 surround to form an imaging paper placement groove 210, the imaging paper placement layer 200 is provided with a second light-transmitting hole 220 coaxial with the first light-transmitting hole 120; the imaging paper is placed in the imaging paper placement groove 210 to separate the first light-transmitting hole 120 and the second light-transmitting hole 220.

[0042] According to the optical path collimation determination device 10 of this utility model embodiment, when there is a collimation measurement requirement, the first end of the light-blocking cross layer 100 is inserted into the clearance hole 911 of the machine base 910 and fixed. The imaging paper is placed in the imaging paper placement slot 210 and fixed. Part of the laser emitted from the emitting end of the laser emitter 930 is blocked by the light-blocking cross layer 111, and the other part forms a first image with several fan-shaped areas on the imaging paper. After the imaging paper is completed, the optical path collimation determination device 10 is removed, and the laser emitter 930 continues to emit laser. Part of the laser is blocked by the cross layer (the original laser processing equipment's cross layer) located at the front end of the galvanometer 920. The first image is blocked by the first image frame, and the second image is printed at the processing station of the laser processing equipment after being refracted by the galvanometer 920 and then the second image is printed by the galvanometer 920. The operator compares the first image and the second image. If the light spots (the aforementioned several fan-shaped areas) of the first image and the second image are evenly around the center of the cross, it means that the collimation of the laser between the emitting end of the laser emitter and the incident end of the galvanometer 920 is high and the laser processing effect is good. If there is a certain deviation between the light spot of the second image and the light spot on the first image, the relative position of the laser emitter 930 and the galvanometer 920 needs to be adjusted to improve the collimation of the laser between them.

[0043] According to the optical path collimation determination device 10 of this utility model embodiment, by setting a light-blocking cross layer to place a light-blocking cross 111 and fixing the light-blocking cross layer in the avoidance hole 911, the staff is prevented from touching the light-blocking cross 111 during measurement or debugging, ensuring the consistency of the position of the light-blocking cross 111 during each imaging; and by using the imaging paper placement slot 210 to place the imaging paper, the staff is prevented from holding the imaging paper by hand to form an image, which greatly improves the measurement safety and prevents the imaging paper from moving, thereby improving the measurement accuracy.

[0044] In this embodiment, combined with Figures 1 to 3 As shown, the light-blocking cross layer 100 includes a plurality of light-blocking cross sub-layers 110 arranged along the axial direction of the first light-transmitting hole 120, and each light-blocking cross sub-layer 110 is provided with a light-blocking cross 111; as in this embodiment, two layers of light-blocking cross sub-layers 110 are provided, of course, the specific number can be adjusted according to actual needs.

[0045] In one embodiment, the projections of the light-blocking crosses 111 of the multiple light-blocking crosses 110 overlap on the axial orthogonal projection of the first light-transmitting hole 120; the light-blocking crosses 111 closest to the laser side have a shorter lifespan due to prolonged laser irradiation, and the multiple light-blocking crosses 111 ensure that the optical path collimation determination device 10 does not affect its measurement function after the light-blocking crosses 111 are removed.

[0046] In one embodiment, combined Figure 2As shown, on the axial orthogonal projection of the first light-transmitting aperture 120, the projections of the light-blocking crosses 111 of the multiple light-blocking cross layers 110 are staggered, which is suitable for dividing the projection of the first light-transmitting aperture 120 into several parts. The more parts the projection is divided into, the easier it is to see the deviation direction of the laser, which is more conducive to the fine adjustment of the laser emitter 930.

[0047] In this embodiment, as Figure 2 Two light-blocking crosses 111 are set in the middle, and the two light-blocking crosses 111 are set at a 45-degree angle to divide the projection of the first light-transmitting hole 120 into 8 equal parts; of course, if there are more light-blocking crosses 111, the angle between the light-blocking crosses 111 can be adjusted to ensure that the first light-transmitting hole 120 is evenly divided. For example, if there are 3 light-blocking crosses 111, the angle between adjacent light-blocking crosses 111 is 30 degrees.

[0048] In this embodiment, the imaging paper can be thermal paper (the area irradiated by the laser turns black) or photosensitive paper (the area irradiated by the laser turns black).

[0049] In some embodiments, combined with Figures 1 to 3 As shown, the light-blocking cross layer 100 includes a stepped insertion section 140 and an abutment section 130 arranged along the extension direction of the first light-transmitting hole 120. The insertion section 140 is inserted into the clearance hole 911, and the abutment section 130 abuts against the machine base 910. The operator only needs to insert the optical path collimation determination device 10 along the clearance hole 911 until the abutment section 130 abuts against the machine base 910, which greatly improves the convenience of positioning and installing the optical path collimation determination device 10.

[0050] In some embodiments, combined with Figures 1 to 3 As shown, the imaging paper placement layer 200 is detachably connected to the light-blocking cross layer 100; that is, the imaging paper placement slot 210 can be placed in a closed form between the imaging paper placement layer 200 and the light-blocking cross layer 100, and the imaging paper is completely isolated from the outside world when placed in the imaging paper placement slot 210 to prevent the imaging paper from moving.

[0051] In some embodiments, combined with Figures 1 to 3 As shown, the imaging paper placement slot 210 is a slot extending radially from the outside to the inside along the second light-transmitting hole 220. Of course, the imaging paper placement layer 200 and the light-blocking cross layer 100 can also be integrated, with the imaging paper placement slot 210 in the form of a slot opened on the side of the two as a whole, which facilitates the installation and removal of the imaging paper.

[0052] In the two embodiments above, the solution of detachably connecting the slot-type imaging paper placement slot 210 and the imaging paper placement layer 200 to the light-blocking cross layer 100 can also be used in combination, which facilitates the processing and forming of the imaging paper placement slot 210.

[0053] In some embodiments, combined with Figures 1 to 3 As shown, the light-blocking cross sub-layer 110 is provided with two mounting through holes 113. The axes of the two mounting through holes 113 are perpendicular to each other and arranged radially along the first light-transmitting hole 120. The light-blocking cross 111 includes two vertically arranged metal wires 1110, and each metal wire 1110 is fixed in a mounting through hole 113.

[0054] In this embodiment, a replacement metal wire 1110 is used as a component of the light-blocking cross 111, reducing the manufacturing and maintenance costs of the optical path collimation determination device 10. The metal wire 1110 can be made of materials with good heat dissipation capabilities, such as copper wire or iron wire.

[0055] In other embodiments, an integrated cross can also be used as the light-blocking cross 111.

[0056] In some embodiments, combined with Figures 1 to 3 As shown, the light-blocking cross layer 110 is provided with a threaded hole 112. The axis of the threaded hole 112 is perpendicular to the extension direction of the metal wire 1110. The threaded hole 112 is adapted to engage with a threaded screw (not shown in the figure), which is used to press and fix the metal wire 1110. The metal wire 1110 is stably fixed by pressing and fixing it with the screw. Of course, the metal wire 1110 can also be fixed by interference fit between the metal wire 1110 and the mounting through hole 113, or by high friction between the metal wire 1110 and the mounting hole.

[0057] In some embodiments, combined with Figures 1 to 3 As shown, adjacent light-blocking cross layers 110 are detachably connected; one of the adjacent light-blocking cross layers 110 is provided with a mounting threaded hole (not shown in the figure), and the other is provided with a clearance through hole (not shown in the figure). The clearance through hole and the mounting threaded hole are fixed together by a connecting screw (not shown in the figure).

[0058] In this embodiment, Figure 3 The diagram shows two light-blocking cross layers 110 integrated and non-removable. In this case, the threaded hole 112 of the right light-blocking cross layer 110 is located at the right end of the light-blocking cross layer 110, and the threaded hole 112 of the left light-blocking cross layer 110 (not shown in the figure) is located at the left end of the light-blocking cross layer 110. The above arrangement of the threaded hole 112 is only suitable for the case of two light-blocking cross layers 110, and is not very suitable for light-blocking cross layers 100 with a larger number of light-blocking cross layers 110.

[0059] In this embodiment, the adjacent light-blocking cross layers 110 are further provided to be detachably connected, so that each independent light-blocking cross layer 110 can be provided with a wire-pressing thread hole 112 to fix its own metal wire 1110, which effectively increases the number of light-blocking crosses 111 that can be provided in the light-blocking cross layer 100.

[0060] In some embodiments, combined with Figure 1 and Figure 3 As shown, the light-blocking cross-shaped sub-layer 110 is provided with a shearing groove 114. The shearing groove 114 is formed by recessing from the outer wall of the light-blocking cross-shaped sub-layer 110 inward, and the shearing groove 114 is connected to the mounting through hole 113. The cross-sectional area of ​​the shearing groove 114 is larger than the cross-sectional area of ​​the mounting through hole 113.

[0061] In this embodiment, the excess metal wire 1110 that passes through the mounting through hole 113 needs to be trimmed. By setting a shearing clearance groove 114, it is easy for the cutting tool to cut it, so that the remaining metal wire 1110 will not protrude from the outer surface of the light-blocking cross layer 110.

[0062] In some embodiments, combined with Figure 3 As shown, a partial surface of the bottom of the shear clearance groove 114 is recessed towards the center of the light-blocking cross-shaped sub-layer 110 to form a pressure clearance groove 115. The pressure clearance groove 115 connects the threaded hole 112 and the mounting through hole 113. The pressure screw presses against the metal wire 1110 through the threaded hole 112 and the pressure clearance groove 115. The pressure clearance groove 115 facilitates visual inspection by workers to determine whether the metal wire 1110 is pressed and fixed by the pressure screw.

[0063] On the other hand, this utility model embodiment also provides a laser processing equipment, including the optical path collimation determination device 10 as described in the above embodiment.

[0064] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An optical path collimation determination device, installed on a laser processing equipment, the laser processing equipment comprising a machine base (910), a galvanometer (920), and a laser emitter (930), wherein the galvanometer (920) and the laser emitter (930) are connected to the machine base (910), and the machine base (910) is provided with a clearance hole (911) corresponding to the emitting end of the laser emitter (930), characterized in that, include: A light-blocking cross layer (100) includes a light-blocking cross (111), the light-blocking cross layer (100) having a first light-transmitting hole (120), the center of the light-blocking cross (111) coinciding with the axis of the first light-transmitting hole (120), and the light-blocking cross (111) extending radially along the first light-transmitting hole (120); a first end of the light-blocking cross layer (100) is adapted to be inserted into the clearance hole (911); An imaging paper placement layer (200) is connected to the second end of the light-blocking cross layer (100), with the first end and the second end being disposed opposite to each other. The imaging paper placement layer (200) and the light-blocking cross layer (100) enclose an imaging paper placement groove (210). The imaging paper placement layer (200) is provided with a second light-transmitting hole (220) coaxial with the first light-transmitting hole (120). An imaging paper is placed in the imaging paper placement slot (210) to separate the first light-transmitting hole (120) from the second light-transmitting hole (220). The light-blocking cross layer (100) includes a plurality of light-blocking cross sub-layers (110) arranged along the axial direction of the first light-transmitting hole (120), and each light-blocking cross sub-layer (110) is provided with a light-blocking cross (111). On the axial orthogonal projection of the first light-transmitting hole (120), the projections of the light-blocking crosses (111) of the plurality of light-blocking cross sub-layers (110) overlap; or, on the axial orthogonal projection of the first light-transmitting hole (120), the projections of the light-blocking crosses (111) of the plurality of light-blocking cross sub-layers (110) are staggered, which is suitable for dividing the projection of the first light-transmitting hole (120) into several parts.

2. The optical path collimation determination device according to claim 1, characterized in that, The light-blocking cross layer (100) includes a stepped insertion section (140) and an abutment section (130) arranged along the extension direction of the first light-transmitting hole (120). The insertion section (140) is inserted into the clearance hole (911), and the abutment section (130) abuts against the machine base (910).

3. The optical path collimation determination device according to claim 2, characterized in that, The imaging paper placement layer (200) is detachably connected to the light-blocking cross layer (100). And / or, The imaging paper placement slot (210) is a slot that extends radially from the outside to the inside along the second light-transmitting hole (220).

4. The optical path collimation determination device according to any one of claims 1 to 3, characterized in that, The light-blocking cross sub-layer (110) is provided with two mounting through holes (113), the axes of the two mounting through holes (113) are perpendicular to each other and arranged radially along the first light-transmitting hole (120); The light-blocking cross (111) includes two vertically arranged metal wires (1110), each of which is fixed in one of the mounting through holes (113).

5. The optical path collimation determination device according to claim 4, characterized in that, The light-blocking cross layer (110) is provided with a wire-pressing thread hole (112). The axis of the wire-pressing thread hole (112) is perpendicular to the extension direction of the metal wire (1110). The wire-pressing thread hole (112) is adapted to be threaded with a pressing screw. The pressing screw is used to press and fix the metal wire (1110).

6. The optical path collimation determination device according to claim 5, characterized in that, The adjacent light-blocking cross sub-layers (110) are detachably connected; One of the adjacent light-blocking cross layers (110) is provided with a mounting threaded hole, and the other is provided with a clearance through hole. The clearance through hole and the mounting threaded hole are fixed together by connecting screws.

7. The optical path collimation determination device according to claim 5, characterized in that, The light-blocking cross sub-layer (110) is provided with a shearing groove (114), which is formed by recessing from the outer wall of the light-blocking cross sub-layer (110) inward, and the shearing groove (114) is connected to the mounting through hole (113). The cross-sectional area of ​​the shearing groove (114) is larger than the cross-sectional area of ​​the mounting through hole (113).

8. The optical path collimation determination device according to claim 7, characterized in that, The bottom surface of the shearing relief groove (114) is recessed toward the center of the light-blocking cross sub-layer (110) to form a pressure relief groove (115). The pressure relief groove (115) connects the wire pressing thread hole (112) and the mounting through hole (113). The pressure screw presses against the metal wire (1110) through the wire pressing thread hole (112) and the pressure relief groove (115).

9. A laser processing device, characterized in that, Includes the optical path collimation determination device (10) as described in any one of claims 1 to 8.

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