Light path adjustable structure and tool setting gauge

Abstract

The invention relates to the technical field of laser measurement equipment, and discloses a light path adjustable structure and a tool setter, the light path adjustable structure comprises the tool setter and a transmitting end base, one end of the tool setter is provided with a mounting fixing mechanism, the mounting fixing mechanism is used for providing a mounting position, the mounting fixing mechanism is internally provided with a mounting moving mechanism, and the mounting moving mechanism is used for moving the tool setter. A laser transmitter is arranged in the mounting moving mechanism, a mounting mechanism is arranged in the mounting moving mechanism, the mounting mechanism is used for mounting the laser transmitter in the mounting moving mechanism, and the mounting moving mechanism is used for moving in the mounting fixing mechanism. Through cooperation of the installation fixing mechanism, the installation moving mechanism, the lens pressing block and the lens fixing block, multi-degree-of-freedom flexible adjustment of the relative position and angle between the emission point of the laser beam and the optical center of the lens group is realized, the applicability and universality of installation are improved, the production cost is reduced, and the production efficiency is improved. And the difficulty of maintenance and calibration is reduced.

Description

Technical Field

[0001] This invention relates to the field of laser measurement equipment technology, specifically to an adjustable optical path structure and a tool setter. Background Technology

[0002] Laser tool setters are key devices in modern CNC machine tools used for accurately measuring the length and diameter of cutting tools. Their basic principle is as follows: a laser emitter emits a laser beam, which passes through a lens group (usually including lenses and mirrors) to form a stable beam barrier. When the cutting tool on the machine tool spindle enters this barrier, it blocks the laser beam. The receiver detects the change in the light signal, triggering a signal to calculate the precise position of the cutting tool.

[0003] In existing laser tool setting devices, the relative positions and optical path angles between the laser emitter, mirror assembly, and receiver are fixed within a sealed housing at the factory, making focusing difficult. However, the layouts of the spindle, worktable, and tool magazine vary significantly between different brands and models of machine tools. This fixed optical path restricts the tool setting device to specific angles and positions. For machine tools with limited space or unique structures, suitable installation locations are often difficult to find, hindering assembly for various ranges. This results in poor installation adaptability and versatility, making installation inconvenient or even impossible. Custom-designed tool setting devices are typically developed to suit specific machine tools, increasing costs. Furthermore, impacts or vibrations can cause slight optical path shifts, potentially requiring the entire tool setting device to be returned to the factory for repair. Quick on-site calibration is not possible, making maintenance and calibration difficult and impacting production efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an optically adjustable structure and a tool setter, which solves the problems of existing laser tool setters being inconvenient to focus, thus making them difficult to assemble for various ranges, with poor installation adaptability and versatility. Furthermore, for special machine tools, custom tool setters are required, leading to increased costs, as well as difficulties in maintenance and calibration, which affect production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable optical path structure, comprising a tool setting instrument and a transmitter base, wherein one end of the tool setting instrument is provided with a mounting and fixing mechanism, the mounting and fixing mechanism is used to provide a mounting position, a mounting and moving mechanism is provided inside the mounting and moving mechanism, a laser emitter is provided inside the mounting and moving mechanism, and a mounting mechanism is provided inside the mounting and moving mechanism for mounting the laser emitter inside the mounting and moving mechanism. The mounting and moving mechanism is used to move inside the mounting and fixing mechanism to adjust the relative position between the emission point of the laser beam and the optical center of the lens group. An aspherical lens is provided inside the mounting and fixing mechanism, and the mounting and fixing mechanism is located inside the transmitter base.

[0006] Preferably, the mounting and fixing mechanism includes a lens module mounting base, a light-transmitting hole in the center of the lens module mounting base, an inner mounting hole I in one side of the lens module mounting base, a fixing plate fixedly connected to the outer side of the lens module mounting base, a spherical mating surface I in one side of the lens module mounting base, an inner mounting hole II in the side of the lens module mounting base away from the inner mounting hole I, an internal thread in the lens module mounting base, and through holes in all four corners of the fixing plate. The aspherical lens is disposed inside the inner mounting hole I.

[0007] Preferably, the mounting and moving mechanism includes a laser emitter fixing seat, which is disposed inside the second mounting inner hole. The laser emitter fixing seat has an external thread on its exterior and multiple gripper holes on the side of the laser emitter fixing seat away from the first mounting inner hole. The external thread and the internal thread are threaded together.

[0008] Preferably, the laser emitter includes an outer circular surface, a stepped surface is fixedly connected to the side of the outer circular surface near the mounting inner hole, a laser emitting surface is fixedly connected to the side of the outer circular surface near the mounting inner hole, a back surface is fixedly connected to the side of the outer circular surface away from the laser emitting surface, and three pins are fixedly connected to the side of the back surface away from the laser emitting surface. The laser emitter is disposed inside the laser emitter mounting base.

[0009] Preferably, the mounting mechanism includes a transmitter clamping block, the transmitter clamping block being externally threaded into the interior of the laser transmitter mounting base, and the transmitter clamping block having multiple clamping holes on the side away from the laser transmitter.

[0010] Preferably, a lens pressing block is provided inside the mounting inner hole, and a lens fixing block is threadedly connected inside the mounting inner hole. The lens fixing block has multiple assembly slots inside, and the side of the lens pressing block away from the lens fixing block is in contact with the outside of the aspherical lens.

[0011] Preferably, the transmitter base has a second spherical mating surface inside, which is in contact with the first spherical mating surface. A light-transmitting slot is provided on the side adjacent to the second spherical mating surface inside the transmitter base. A protective lens mating hole is provided on the side of the transmitter base away from the mounting and fixing mechanism. Four threaded holes are provided inside the transmitter base.

[0012] Preferably, the light-transmitting hole is connected to the second mounting inner hole, and the light-transmitting hole is connected to the first mounting inner hole.

[0013] Preferably, a screw is disposed inside the threaded hole, and the screw is threadedly connected inside the through hole.

[0014] The second aspect of this disclosure provides a tool setting device with an adjustable optical path structure, including the adjustable optical path structure described in the first aspect.

[0015] This invention provides an adjustable optical path structure and a tool setting device. It has the following beneficial effects:

[0016] This invention, through the cooperation of a mounting and fixing mechanism, a mounting and moving mechanism, a lens clamping block, and a lens fixing block, enables flexible adjustment of the relative position and angle between the laser beam emission point and the optical center of the lens assembly with multiple degrees of freedom. This facilitates focusing, allows for easy assembly, and is suitable for various ranges. The flexible focusing does not require fixed dimensions, improving the applicability and versatility of the installation. Therefore, there is no need to develop a tool setter, reducing production costs. Furthermore, when the optical path is slightly offset due to collision or vibration, there is no need to return it to the factory for repair; it can be quickly corrected on-site, reducing the difficulty of maintenance and calibration and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the lens module mounting bracket of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the transmitter base of the present invention;

[0019] Figure 3 This is a front view of the firing end of the knife-setting device of the present invention;

[0020] Figure 4 This is a perspective view of the present invention.

[0021] The components include: 1. Tool setting instrument; 2. Mounting and fixing mechanism; 201. Lens module mounting base; 202. Light transmission hole; 203. Mounting inner hole one; 204. Mounting base plate; 205. Spherical mating surface one; 206. Mounting inner hole two; 207. Internal thread; 208. Through hole; 3. Mounting and moving mechanism; 301. Laser emitter mounting base; 302. External thread; 303. Clamping hole; 4. Laser emitter; 401. Laser emitting surface; 402. Pin; 403. Back side; 404. Stepped surface; 405. Outer circular surface; 5. Mounting mechanism; 501. Emitter pressure block; 502. Clamping hole; 6. Aspherical lens; 7. Lens pressure block; 8. Lens fixing block; 9. Assembly slot; 10. Emitter base; 11. Spherical mating surface two; 12. Light transmission slot hole; 13. Protective lens mating hole; 14. Threaded hole. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 -Appendix Figure 4 This invention provides an adjustable optical path structure, including a tool setting instrument 1 and an emitting end base 10. One end of the tool setting instrument 1 is provided with a mounting and fixing mechanism 2, which provides the mounting position. Inside the mounting and fixing mechanism 2 is a mounting and moving mechanism 3, inside which is a laser emitter 4. Inside the mounting and moving mechanism 3 is a mounting mechanism 5, which mounts the laser emitter 4 inside the mounting and moving mechanism 3. The mounting and moving mechanism 3 moves within the mounting and fixing mechanism 2, thereby adjusting the relative position between the emission point of the laser beam and the optical center of the lens group. Inside the mounting and fixing mechanism 2 is an aspherical lens 6, which performs the focusing function of the beam and has a plano-convex configuration. The laser emitter 4 emits a 680nm wavelength red laser beam, which propagates towards the aspherical lens 6. The mounting and fixing mechanism 2 is located inside the emitting end base 10.

[0024] The mounting and fixing mechanism 2 includes a lens module mounting base 201, which provides an installation position. A light-transmitting hole 202 is provided in the center of the lens module mounting base 201, allowing the light beam to pass through without obstructing its passage. An inner mounting hole 203 is provided on one side of the lens module mounting base 201, providing the installation position. A mounting plate 204 is fixedly connected to the outer side of the lens module mounting base 201. A spherical mating surface 205 is provided on one side of the lens module mounting base 201. The lens module mounting base 201 is located away from the mounting plate. An inner hole 206 is provided on one side of the inner hole 203, providing an installation position. The lens module mounting base 201 has an internal thread 207. Through holes 208 are provided at the four corners of the mounting base plate 204. The aspherical lens 6 is placed inside the inner hole 203. A lens pressing block 7 is provided inside the inner hole 203. A lens fixing block 8 is connected to the internal thread of the inner hole 203. The external thread of the lens fixing block 8 and the external thread of the mounting and fixing mechanism 2 located on the side of the lens fixing block 8 have the same thread specification as M13×0.25. When the lens fixing block 8 is rotated, it can drive the lens pressing block 7 to move towards one side of the aspherical lens 6, and use the lens pressing block 7 to press the aspherical lens 6 tightly. The lens fixing block 8 has multiple assembly slots 9 inside. The side of the lens pressing block 7 away from the lens fixing block 8 is in contact with the outside of the aspherical lens 6. The emitter base 10 has a second spherical mating surface 11 inside. The first spherical mating surface 205 is in contact with the second spherical mating surface 11. The emitter base 10 has a light-transmitting slot 12 on the side adjacent to the second spherical mating surface 11 inside. The light-transmitting slot 12 provides a laser beam channel. The emitter base 10 has a protective lens mating hole 13 on the side away from the mounting and fixing mechanism 2 inside. The protective lens mating hole 13 is fitted with a φ10×1 protective lens. The protective lens has a diameter of 10mm and a thickness of 1mm. The circular lens is installed in the protective lens mating hole 13 of the transmitter base 10 to protect the internal aspherical lens 6 and prevent dust, debris, etc. from interfering with the optical path. The transmitter base 10 has four threaded holes 14. The light-passing hole 202 is connected to the second mounting inner hole 206 and the first mounting inner hole 203. Screws are installed inside the threaded holes 14 and are threaded into the through holes 208. The spherical mating surface 205 in the mounting and fixing mechanism 2 and the spherical mating surface 205 in the transmitter base 10 are connected. With surface 11 engaged, and the angle of the mounting plate 204 adjusted by four screws, the angle of the lens module mounting base 201 is further adjusted to ensure the horizontality of the emitted laser beam. When adjusting the angle between the laser beam emission point and the optical center of the lens assembly, since the screws are threaded inside the through hole 208, turning the screws allows the internal angle of the mounting plate 204 to move, causing the spherical mating surface 205 to engage with the spherical mating surface 11. This allows for flexible adjustment of the laser beam's horizontality, thus achieving the adjustment of the angle between the emission point and the optical center of the lens assembly.

[0025] The mounting and moving mechanism 3 includes a laser emitter mounting base 301, which is located inside the mounting inner hole 206. The outer surface of the laser emitter mounting base 301 mates with the inner surface of the mounting inner hole 206 to ensure the coaxiality of the laser emitter 4 and the mounting and fixing mechanism 2. The outer surface of the laser emitter mounting base 301 has an external thread 302. The external thread 302 and the internal thread 207 are non-standard M10×0.25 threads with a pitch of 0.25mm. When the mounting and moving mechanism 3 rotates one revolution relative to the mounting and fixing mechanism 2, the distance between the laser emitting surface 401 and the aspherical lens 6 changes by 0.25mm, resulting in a focusing resolution of 0.25mm / 360°≈0.7μm / °. This allows for μm-level fine-tuning between the laser emitting surface 401 and the aspherical lens 6. The side of the laser emitter mounting base 301 furthest from the mounting inner hole 203 has an internal opening... Multiple gripper holes 303 are provided, which are used to engage with grippers to facilitate the assembly of the laser emitter mounting base 301. They also facilitate the assembly of the mounting and fixing mechanism 2 inside the emitter base 10. The external thread 302 and the internal thread 207 are threadedly connected. When adjusting the relative position between the laser beam emission point and the optical center of the lens assembly, a tool can be inserted into the gripper hole 303 and rotated, thereby driving the laser emitter mounting base 301 to rotate. Since the external thread 302 and the internal thread 207 are threadedly connected, when the laser emitter mounting base 301 rotates, it can move inside the mounting inner hole 206. When the laser emitter mounting base 301 moves, it can drive the laser emitter 4 to move inside the mounting inner hole 206, thereby adjusting the relative position between the laser beam emission point and the optical center of the lens assembly.

[0026] The laser emitter 4 includes an outer circular surface 405. A stepped surface 404 is fixedly connected to the side of the outer circular surface 405 near the mounting inner hole 203. The stepped surface 404 and the outer circular surface 405 are configured to cooperate with the mounting mechanism 5 and the mounting moving mechanism 3 to install the laser emitter 4. A laser emitting surface 401 is fixedly connected to the side of the outer circular surface 405 near the mounting inner hole 203. A back surface 403 is fixedly connected to the side of the outer circular surface 405 away from the laser emitting surface 401. Three pins 402 are fixedly connected to the side of the back surface 403 away from the laser emitting surface 401. The laser emitter 4 is located inside the laser emitter mounting base 301. When the laser emitting surface 401 on the laser emitter 4 emits a laser beam, the beam propagates to the aspherical lens 6 with a plano-convex configuration. The beam is focused by its refraction. The focused laser beam is emitted sequentially through the light-transmitting hole 202 of the mounting fixing mechanism 2 and the light-transmitting slot 12 of the emitting end base 10.

[0027] The mounting mechanism 5 includes a transmitter clamping block 501. The external thread of the transmitter clamping block 501 is connected to the inside of the laser transmitter mounting base 301. The external thread of the transmitter clamping block 501 is M8×0.25, which is compatible with the external thread of the laser transmitter mounting base 301. Multiple clamping holes 502 are provided on the side of the transmitter clamping block 501 away from the laser transmitter 4. The clamping holes 502 are used to cooperate with the clamps to facilitate the assembly of the transmitter clamping block 501. When installing the laser transmitter 4, the laser transmitter 4 is first placed inside the laser transmitter mounting base 301. Then, the transmitter clamping block 501 is screwed into the laser transmitter mounting base 301 through the clamping holes 502 so that the side of the transmitter clamping block 501 closest to the aspherical lens 6 rests against the outside of the back surface 403. At this time, the stepped surface 404 rests against the inside of the laser transmitter mounting base 301, thereby completing the installation of the laser transmitter 4.

[0028] This disclosure provides a tool setting device with an adjustable optical path structure, which includes the adjustable optical path structure provided in this disclosure. Since the tool setting device with an adjustable optical path structure provided in this disclosure has the same advantages as the adjustable optical path structure provided in this disclosure, it will not be described again here.

[0029] Working principle: When adjusting the relative position between the laser beam emission point and the optical center of the lens group, a tool can be inserted into the gripper hole 303 and rotated, thereby driving the laser emitter mounting base 301 to rotate. Since the external thread 302 and the internal thread 207 are threadedly connected, when the laser emitter mounting base 301 rotates, it can move inside the mounting inner hole 206. When the laser emitter mounting base 301 moves, it can drive the laser emitter 4 to move inside the mounting inner hole 206, thereby adjusting the relative position between the laser beam emission point and the optical center of the lens group.

[0030] When the laser emitting surface 401 on the laser emitter 4 emits a laser beam, the beam propagates to the aspherical lens 6 with a plano-convex configuration, and the beam is focused by its refraction. The focused laser beam is then emitted through the light-transmitting hole 202 of the mounting and fixing mechanism 2 and the light-transmitting slot 12 of the emitting end base 10.

[0031] When adjusting the angle between the laser beam emission point and the optical center of the mirror assembly, since the screw is threaded inside the through hole 208, the internal angle of the fixed base plate 204 can be moved by turning the screw, and the spherical mating surface 1 205 and the spherical mating surface 2 11 can be mated, so that the horizontality of the laser beam can be flexibly adjusted, and the angle between the emission point and the optical center of the mirror assembly can be adjusted.

[0032] When installing the laser emitter 4, first place the laser emitter 4 inside the laser emitter mounting base 301, and then screw the emitter clamping block 501 into the laser emitter mounting base 301 through the clamping hole 502 so that the side of the emitter clamping block 501 near the aspherical lens 6 abuts against the outside of the back surface 403, while the stepped surface 404 abuts against the inside of the laser emitter mounting base 301, thereby completing the installation of the laser emitter 4.

[0033] When installing the aspherical lens 6, first place the aspherical lens 6 into the inner hole 203, then place the lens clamping block 7 into the inner hole 203, and finally screw the lens fixing block 8 into the inner hole 203 using the assembly groove 9. This allows the side of the lens clamping block 7 away from the lens fixing block 8 to press against the outside of the aspherical lens 6 to complete the installation of the aspherical lens 6.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable optical path structure, comprising a tool setting instrument (1) and a transmitter base (10), characterized in that, One end of the tool setting instrument (1) is provided with a mounting and fixing mechanism (2), which is used to provide a mounting position. The mounting and fixing mechanism (2) is provided with a mounting and moving mechanism (3) inside. The mounting and moving mechanism (3) is provided with a laser emitter (4) inside. The mounting and moving mechanism (3) is provided with a mounting mechanism (5) inside. The mounting mechanism (5) is used to install the laser emitter (4) inside the mounting and moving mechanism (3). The mounting and moving mechanism (3) is used to move inside the mounting and fixing mechanism (2) to adjust the relative position between the emission point of the laser beam and the optical center of the lens group. The mounting and fixing mechanism (2) is provided with an aspherical lens (6) inside. The mounting and fixing mechanism (2) is located inside the emitting end base (10).

2. The optical path adjustable structure according to claim 1, characterized in that, The mounting and fixing mechanism (2) includes a lens module mounting base (201), a light-transmitting hole (202) is provided in the middle of the lens module mounting base (201), an inner mounting hole (203) is provided on one side of the lens module mounting base (201), a fixing plate (204) is fixedly connected to the outer side of the lens module mounting base (201), a spherical mating surface (205) is provided on one side of the lens module mounting base (201), an inner mounting hole (206) is provided on the side of the lens module mounting base (201) away from the inner mounting hole (203), an internal thread (207) is provided inside the lens module mounting base (201), and through holes (208) are provided at the four corners of the fixing plate (204). The aspherical lens (6) is disposed inside the inner mounting hole (203).

3. The optical path adjustable structure according to claim 2, characterized in that, The installation and moving mechanism (3) includes a laser emitter mounting base (301), which is located inside the second mounting inner hole (206). The laser emitter mounting base (301) has an external thread (302) on its exterior. The side of the laser emitter mounting base (301) away from the first mounting inner hole (203) has multiple gripper holes (303). The external thread (302) and the internal thread (207) are connected by a thread.

4. The optical path adjustable structure according to claim 3, characterized in that, The laser emitter (4) includes an outer circular surface (405), a stepped surface (404) is fixedly connected to the side of the outer circular surface (405) near the mounting inner hole (203), a laser emitting surface (401) is fixedly connected to the side of the outer circular surface (405) near the mounting inner hole (203), a back surface (403) is fixedly connected to the side of the outer circular surface (405) away from the laser emitting surface (401), and three pins (402) are fixedly connected to the side of the back surface (403) away from the laser emitting surface (401). The laser emitter (4) is disposed inside the laser emitter mounting base (301).

5. The optical path adjustable structure according to claim 3, characterized in that, The mounting mechanism (5) includes a transmitter clamping block (501), the external thread of which is connected to the inside of the laser transmitter mounting base (301), and multiple clamping holes (502) are provided on the side of the transmitter clamping block (501) away from the laser transmitter (4).

6. The optical path adjustable structure according to claim 2, characterized in that, The inner hole (203) is provided with a lens pressing block (7), and the inner hole (203) is threaded with a lens fixing block (8). The lens fixing block (8) is provided with multiple assembly slots (9). The side of the lens pressing block (7) away from the lens fixing block (8) is in contact with the outside of the aspherical lens (6).

7. The optical path adjustable structure according to claim 2, characterized in that, The transmitter base (10) has a spherical mating surface two (11) inside. The spherical mating surface one (205) is in contact with the spherical mating surface two (11). The transmitter base (10) has a light-transmitting slot (12) on the side adjacent to the spherical mating surface two (11) inside. The transmitter base (10) has a protective lens mating hole (13) on the side away from the mounting and fixing mechanism (2) inside. The transmitter base (10) has four threaded holes (14) inside.

8. The optical path adjustable structure according to claim 2, characterized in that, The light-transmitting hole (202) is connected to the second mounting inner hole (206), and the light-transmitting hole (202) is connected to the first mounting inner hole (203).

9. The optical path adjustable structure according to claim 7, characterized in that, A screw is provided inside the threaded hole (14), and the screw is threaded into the through hole (208).

10. A tool setting device with an adjustable optical path, characterized in that, Including the optical path adjustable structure described in claims 1-9.

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