A high-precision positioning and adjusting system

Abstract

The application discloses a high-precision positioning and adjusting system, which comprises a rack, a laser emitting and receiving module, a workbench adjusting module and a light path adjusting module; the laser emitting and receiving module comprises a laser emitter, a second laser receiver and a first laser receiver; the workbench adjusting module comprises a workbench and a worktable, and the worktable is provided with a laser hole; the light path adjusting module comprises a left mirror rotating mechanism, a lens rotating mechanism, a lens adjusting structure and a right mirror rotating mechanism; the lens rotating mechanism receives incident light passing through the laser hole, reflects the incident light to the left mirror rotating mechanism and then refracts the incident light to the second laser receiver; the lens rotating mechanism receives incident light passing through the laser hole, refracts the incident light to the lens adjusting structure, then refracts the incident light to the right mirror rotating mechanism and finally refracts the incident light upward to the first laser receiver; the high-precision positioning and adjusting system is simple in structure, quick in response and high in positioning precision.

Description

Technical Field

[0001] This invention belongs to the field of machine tool processing, and specifically relates to a high-precision positioning and adjustment system for detecting and correcting positioning accuracy. Background Technology

[0002] Laser positioning devices are used for accurate positioning of the worktable during machine tool processing, achieving high-precision work requirements by positioning the worktable.

[0003] Chinese invention patent application CN116765937A discloses a "positioning accuracy detection and correction method for a flexible machine tool table." This method uses a laser probe as a measuring tool. All POGO columns on the flexible table are sequentially adjusted to their initial positions, maximum travel height, and initial positions to obtain Z-axis data, i.e., two-dimensional arrays N1, N2, and N3. The difference between N2 and N1 is calculated, and the difference between N2 and N1 and the theoretical maximum travel height Zmax is calculated to obtain a two-dimensional array Nm2. The value corresponding to the maximum absolute value is the positioning accuracy Pr. Similarly, the difference between N3 and N1 is calculated to obtain a two-dimensional array Nm3, and the value corresponding to the maximum absolute value is the repeatability accuracy Prs. These values ​​are then compared with the acceptable accuracy specified in the factory specifications to determine if the accuracy falls within the acceptable range and to make corrections.

[0004] Chinese invention patent CN116394068B, authorized by patent announcement number CN116394068B, discloses "A method for automatically measuring the zero-point positioning accuracy of the AC axis of a five-axis CNC machine tool." This method, based on a probe, is used for the automatic measurement of the zero-point positioning accuracy of the AC axis of an AC-type five-axis CNC machine tool, and is applied to the automatic calibration of the geometric accuracy of such machine tools. The method is based on a measurement assembly mainly composed of a standard ball, a standard probe, and an L-shaped probe. By planning the probe's measurement trajectory, measuring the coordinates of the contact point, obtaining the error angle value, and performing compensation, the method achieves this.

[0005] Chinese invention patent application CN116809962A discloses "a 3D printing device and its laser positioning accuracy calibration method". The calibration method includes: placing a standard plate with several graphics on a working plane, setting an imaging system at the laser incident end of a galvanometer; keeping the laser off, controlling the galvanometer to deflect and scan any position A of each graphic, and acquiring the standard plate image observed under the reflection of the galvanometer at position A through the imaging system; performing image processing on the standard plate image, and extracting the coordinate values ​​of the positioning pattern at position A of the corresponding graphic using a graphic recognition algorithm, forming an actual matrix with the coordinate values ​​of the positioning patterns corresponding to all graphics in the array; calculating the deviation between the coordinate values ​​of each positioning pattern in the actual matrix and the corresponding target coordinate values ​​in the target matrix, and generating a galvanometer accuracy calibration table through a calibration algorithm.

[0006] The existing technologies mentioned above are cumbersome to operate, have a certain calculation response time, are inefficient, and are not suitable for positioning requirements on moving parts. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies in achieving high-precision positioning by providing a high-precision positioning and adjustment system that can meet the requirements of easy operation, high efficiency, and high precision positioning of moving parts.

[0008] To achieve the above objectives, the technical solution of the present invention is as follows: A high-precision positioning and adjustment system includes a frame, a laser emitting and receiving module disposed at the top of the frame, a worktable adjustment module disposed in the middle of the frame, and an optical path adjustment module disposed at the bottom of the frame; The laser emitting and receiving module includes a laser emitter that moves left and right, a second laser receiver, and a first laser receiver that moves back and forth; the laser emitter emits light vertically downwards, and the first laser receiver and the second laser receiver receive the vertically incident light. The worktable adjustment module includes a work frame that moves back and forth and a worktable that moves left and right on the work frame. The worktable is vertically provided with a laser hole so that the emitted light emitted by the laser emitter can pass through. The optical path adjustment module includes a left-side mirror rotation mechanism that moves left and right, a lens rotation mechanism, a lens adjustment structure, and a right-side mirror rotation mechanism that moves back and forth. The left reflector rotation mechanism, lens rotation mechanism, and lens adjustment structure are positioned opposite each other. The lens rotation mechanism receives incident light rays passing through the laser aperture, reflects them to the left reflector rotation mechanism, and then refracts them upwards onto the second laser receiver. The lens rotation mechanism receives incident light rays passing through the laser aperture, refracts them to the lens adjustment structure, and then refracts them to the right reflector rotation mechanism, which in turn refracts them upwards onto the first laser receiver.

[0009] As a further improvement to the above technical solution, the laser emitting and receiving module includes two top horizontal linear motors arranged horizontally on the top of the frame and one top vertical linear motor arranged vertically on the top of the frame; the second laser receiver is movably mounted on the front top horizontal linear motor to move the second laser receiver left and right, the first laser receiver is mounted on the top vertical linear motor to move the first laser receiver back and forth, and the laser emitter is located between the first laser receiver and the second laser receiver and is movably mounted on the rear top horizontal linear motor to move the laser emitter left and right; The worktable adjustment module includes a longitudinal linear motor mounted on the frame and a transverse linear motor mounted on the work stand; the longitudinal linear motor is driven by the work stand to drive the work stand to move back and forth on the frame; the transverse linear motor is driven by the worktable to drive the worktable to move left and right on the work stand. The optical path adjustment module includes three horizontally adjustable linear motors arranged horizontally at the bottom of the frame and a vertically adjustable linear motor arranged vertically at the bottom of the frame; the left mirror rotation mechanism, lens rotation mechanism, and lens adjustment structure are respectively moved by the three horizontally adjustable linear motors to move the left mirror rotation mechanism, lens rotation mechanism, and lens adjustment structure left and right, and the right mirror rotation mechanism is moved by the vertically adjustable linear motor to move the right mirror rotation mechanism back and forth; The optical paths of the left reflector rotation mechanism, lens rotation mechanism, and lens adjustment are corresponding laterally, while the optical paths of the lens adjustment structure and the right reflector rotation mechanism are corresponding longitudinally; the optical paths of the laser emitter, laser aperture, and lens rotation mechanism are corresponding vertically, and the optical paths of the left reflector rotation mechanism and the second laser receiver, the right reflector rotation mechanism, and the first laser receiver are corresponding vertically.

[0010] As a further improvement to the above technical solution, the top horizontal linear motors are arranged in parallel, one in front of the other, and the top vertical linear motor is located to the right of the two top vertical linear motors. The first laser receiver, the laser emitter, and the second laser receiver are respectively provided with connecting frames and are respectively mounted on the top vertical linear motor, the rear top horizontal linear motor, and the front top horizontal linear motor through their respective connecting frames.

[0011] As a further improvement to the above technical solution, the worktable adjustment module also includes a fine adjustment mechanism. The fine adjustment mechanism includes a drive slider connected by a transverse working linear motor. The drive slider is provided with a fine adjustment linear guide rail and a transfer slider so that the drive slider is slidably connected to the transfer slider through the fine adjustment linear guide rail. One end of the driving slider is provided with a fixing plate and a micro-motion cylinder is connected to the fixing plate. The micro-motion cylinder is fixedly connected to the adapter slider to drive the adapter slider to move slightly. A worktable is fixedly connected to the adapter slider.

[0012] As a further improvement to the above technical solution, the workbench includes a work plate and a vertical connecting plate fixedly disposed under the work plate; the laser hole is disposed on the work plate. The workbench adjustment module also includes a side moving mechanism, which includes a vertical slider disposed inside the vertical connecting plate. The inner side of the vertical slider is provided with a working side plate and a side linear guide rail, so that the vertical slider slides relative to the working side plate through the linear guide rail. The working side plate is disposed on one side of the work frame.

[0013] As a further improvement to the above technical solution, the left reflector rotation mechanism, the lens rotation mechanism, and the right reflector rotation mechanism include a sliding frame driven by three horizontal adjustment linear motors and one vertical adjustment linear motor, a rotating frame that rotates relative to the frame, and an adjustment cylinder that drives the rotating frame to swing relative to the frame. The left reflector, the lens, and the right reflector are respectively mounted on their respective rotating frames. The lens adjustment structure includes a lens holder that is driven to slide by a horizontally adjusting linear motor. The lens is mounted on the lens holder and is a plano lens with its surface at a 45° angle to the Z-axis.

[0014] As a further improvement to the above technical solution, the adjusting cylinder includes an adjusting base and a cylinder body disposed on the adjusting base with one end open; the inner cavity of the cylinder body is horizontally provided with a central shaft and two ribs, and a cylinder shaft extends from the open end of the inner cavity of the cylinder body. The cylinder shaft is sleeved in the rotation space formed by the central shaft and the two ribs, so that the cylinder shaft rotates relative to the central shaft and the ribs; a partition is provided around the cylinder shaft in the cylinder body portion, so that the partition divides the space formed by the two ribs into two air chambers, and the cylinder body is connected to an air pipe that communicates with the two air chambers; a drive shaft is connected to the end of the cylinder shaft.

[0015] As a further improvement to the above technical solution, a bearing cover is provided at the open end of the cylinder body, and a sealing ring is provided between the rib and the cylinder shaft, and between the cylinder shaft and the bearing cover.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) The high-precision positioning and adjustment system of the present invention has a simple structure, rapid response and high positioning accuracy.

[0017] (2) The vertical installation of the laser emission and reception modules in space can ensure the reliability of the device to achieve high-precision positioning; the linear motor of the optical path adjustment module can accurately position the left reflector rotation mechanism, lens rotation mechanism, lens adjustment structure and right reflector rotation mechanism; the air pressure adjustment device can drive the rotation of the rotating frame, and the rotating frame can achieve accurate angle locking. The combination of the two increases the flexibility and accuracy of optical path adjustment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an assembly drawing of the present invention; Figure 2 This is a schematic diagram of the optical path of a beam splitter; Figure 3 This is a schematic diagram of the optical path; Figure 4 This is a side view of the laser transmitting and receiving module; Figure 5 This is a side view of the workbench adjustment module; Figure 6 This is a side view of the optical path adjustment module; Figure 7 These are three views of the air pressure regulating device.

[0020] The diagram shows: 1. Worktable adjustment module; 2. Laser emitting and receiving module; 3. Worktable; 4. Frame; 5. Work stand; 6. Vertical linear motor; 7. Optical path adjustment module; 8. Connecting frame; 9. First laser receiver; 10. Top vertical linear motor; 11. Laser emitter; 12. Top horizontal linear motor; 13. Second laser receiver; 14. Micro-motion cylinder; 15. Fine-tuning linear guide; 16. Adapter slider; 17. Vertical connecting plate; 18. Side linear guide; 19. Vertical slider; 20. Horizontal linear motor; 21. Drive... 51. Moving slider; 52. Working side plate; 23. Fixed plate; 24. Longitudinal adjustment linear motor; 25. Adjustment cylinder; 26. Drive shaft; 27. Right side mirror rotation mechanism; 28. Lens fixing bracket; 29. ​​Frame body; 30. Lateral adjustment linear motor; 31. Lens rotation mechanism; 32. Rotating frame; 33. Left side mirror rotation mechanism; 34. Anti-vibration pad; 35. Cylinder body; 36. Ball bearing sleeve; 37. Sealing ring; 38. Air chamber; 49. Cylinder shaft; 40. Adjustment base; 41. Sealing ring; 42. Partition plate; 43. Bearing cover; 44. Rib plate; Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0022] Please see Figures 1 to 7As shown in the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., illustrated in this specification are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the implementation conditions of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the orientations or positional relationships indicated by terms such as "left," "right," "front," and "rear" in this specification are merely for the convenience of describing and simplifying the invention, and are not intended to limit the scope of its implementation. Changes or adjustments to these relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0023] This invention provides a high-precision positioning and adjustment system, including a frame 4, a laser emitting and receiving module 2 disposed at the top of the frame 4, a worktable adjustment module 1 disposed in the middle of the frame 4, and an optical path adjustment module 7 disposed at the bottom of the frame 4; The laser emitting and receiving module 2 includes a laser emitter 11 and a second laser receiver 13 arranged horizontally along the X-axis, a first laser receiver 9 arranged horizontally along the Y-axis, two top transverse linear motors 12 arranged laterally on the top of the frame 4, and one top longitudinal linear motor 10 arranged longitudinally on the top of the frame 4. The top longitudinal linear motor 10 and the top transverse linear motor 12 are equipped with shock-absorbing pads to prevent vibration during movement.

[0024] The second laser receiver 13 is movably mounted on the top horizontal linear motor 12 at the front, causing the second laser receiver 13 to move left and right. The first laser receiver 9 is mounted on the top vertical linear motor 10, causing the first laser receiver 9 to move back and forth. The laser emitter 11 is located between the first laser receiver 9 and the second laser receiver 13 and is movably mounted on the top horizontal linear motor 12 at the rear, causing the laser emitter 11 to move left and right. The laser emitter 11 emits light vertically downwards, and the first laser receiver 9 and the second laser receiver 13 receive the vertically incident light.

[0025] The top horizontal linear motors 12 are arranged in parallel, one in front of the other. The top vertical linear motor 10 is located to the right of the two top horizontal linear motors 12. The first laser receiver 9, the laser emitter 11, and the second laser receiver 13 are each provided with a connecting bracket 8 and are respectively mounted on the top vertical linear motor 10, the rear top horizontal linear motor 12, and the front top horizontal linear motor 12 via their respective connecting brackets 8. The top vertical linear motor 10 and the top horizontal linear motor 12 can drive the laser receiver, the first laser receiver 9, and the second laser receiver 13 to a precise position and lock them in that position.

[0026] In the worktable adjustment module 1, the worktable adjustment module 1 includes a work frame that moves back and forth and a worktable 3 that moves left and right on the work frame. The worktable 3 is vertically provided with a laser hole to allow the emitted light emitted by the laser emitter 11 to pass through (not shown in the figure). It also includes a longitudinal linear motor 6 that is longitudinally arranged on the frame 4 and a transverse linear motor 20 that is transversely arranged on the work frame. The longitudinal linear motor 6 is driven by the work frame 5 to drive the work frame 5 to move back and forth on the frame 4. The transverse linear motor 20 is driven by the worktable 3 to drive the worktable 3 to move left and right on the work frame 5. The worktable adjustment module also includes a fine-tuning mechanism, which includes a drive slider 21 driven by a horizontal linear motor 20. The drive slider 21 is provided with a fine-tuning linear guide rail 15 and a transition slider 16, so that the drive slider 21 is slidably connected to the transition slider 16 through the fine-tuning linear guide rail 15. One end of the drive slider 16 is provided with a fixing plate 52, and a micro-motion cylinder 14 is connected to the fixing plate 52. The micro-motion cylinder 14 is fixedly connected to the transition slider 16 to drive the transition slider 16 to move slightly. The worktable 3 is fixedly connected to the transition slider 16. Two vertical linear motors 6 are installed on the left and right sides at the bottom of the frame 4, which can adjust the forward and backward movement and locking of the worktable 3. The fine adjustment between the left and right movement and the forward and backward movement can ensure that the worktable 3 moves to the precise position, thereby ensuring that the laser of the laser emitter 11 can accurately pass through the laser hole of the worktable 3. The first laser receiver 9 and the second laser receiver 13 can accurately receive the laser signal reflected after passing through the optical path adjustment module 7. The vertical connecting plate 17 connects two mutually perpendicular planes with screws.

[0027] The worktable 3 includes a work plate and a vertical connecting plate 17 fixedly disposed under the work plate; the laser hole is disposed on the work plate; the worktable adjustment module also includes a side moving mechanism, which includes a vertical slider 19 disposed inside the vertical connecting plate 17. The inner side of the vertical slider 19 is provided with a work side plate 51 and a side linear guide rail 18, so that the vertical slider 19 slides relative to the work side plate 51 through the linear guide rail 18; the work side plate 51 is disposed on one side of the work frame 5. The work side plate being disposed on one side of the work frame 5 ensures that the horizontal working linear motor 20 drives the entire worktable 3 to move left and right on the horizontal working linear motor 20, so that it can move to the position set by the laser emitter 11, the first laser receiver 9, and the second laser receiver 13, and then the micro-motion cylinder 14 is connected to the adapter slider 16 to drive the worktable 3 to perform fine adjustment in the left and right directions.

[0028] The optical path adjustment module includes three horizontally adjustable linear motors 28 arranged horizontally at the bottom of the frame 4, a vertically adjustable linear motor 22 arranged vertically at the bottom of the frame 4, a left-side mirror rotation mechanism 31 that moves left and right, a lens rotation mechanism 29, a lens adjustment structure, and a right-side mirror rotation mechanism 25 that moves back and forth. The left reflector rotation mechanism 31, lens rotation mechanism 29, and lens adjustment structure are respectively mounted on three horizontal adjustment linear motors 28 to move the left reflector rotation mechanism 31, lens rotation mechanism 29, and lens adjustment structure 29 left and right. The right reflector rotation mechanism 25 is mounted on a vertical adjustment linear motor 22 to move the right reflector rotation mechanism 25 back and forth. The optical paths of the left reflector rotation mechanism 31, lens rotation mechanism 29, and lens adjustment structure are horizontally aligned, while the optical paths of the lens adjustment structure and the right reflector rotation mechanism 25 are vertically aligned. The optical paths of the laser emitter, laser aperture, and lens rotation mechanism 29 are vertically aligned, and the optical paths of the left reflector rotation mechanism 31 and the second laser receiver, and the right reflector rotation mechanism 25 and the first laser receiver are vertically aligned.

[0029] The left reflector rotation mechanism 31, the lens rotation mechanism 29, and the right reflector rotation mechanism 25 include a sliding frame 27 driven by three horizontal adjustment linear motors 28 and one vertical adjustment linear motor 22, a rotating frame 30 that rotates relative to the frame 27, and an adjustment cylinder 23 that drives the rotating frame 30 to swing relative to the frame 27. The left reflector, the lens, and the right reflector are respectively mounted on their respective rotating frames 30. The horizontal adjustment linear motors 28 and the vertical adjustment linear motors 22 are equipped with anti-vibration pads to prevent vibration during their movement.

[0030] The lens adjustment structure includes a lens holder 26 that is driven to slide by a horizontal adjustment linear motor 28. The lens is mounted on the lens holder 26 and is a plano lens with a 45° angle between its surface and the Z-axis.

[0031] Figure 7 These are three views of the air pressure regulating device, with the lower right corner being a perspective view, the upper left corner a circumferential cross-sectional view, and the upper right corner an axial cross-sectional view. Figure 7 As can be seen, the adjusting cylinder 23 includes an adjusting base 38 and a cylinder body 33 with one end open, which is mounted on the adjusting base 38. A central shaft and two ribs 42 are horizontally arranged in the inner cavity of the cylinder body 33. A cylinder shaft 37 extends from the open end of the inner cavity of the cylinder body 33. The cylinder shaft 37 is sleeved in the rotation space formed by the central shaft and the two ribs 42, so that the cylinder shaft 37 rotates relative to the central shaft and the ribs 42. A partition 40 is provided around the cylinder body portion of the cylinder shaft 37, which divides the space formed by the two ribs 42 into two air chambers 36. An air pipe is connected to the cylinder body 33 and communicates with the two air chambers 36. A drive shaft 24 is connected to the end of the cylinder shaft 37. A bearing cover 41 is provided at the open end of the cylinder body. A sealing ring 35 is provided between the ribs and the cylinder shaft, and between the cylinder shaft and the bearing cover 41. Air is injected into the two air chambers 36 through the air tube. The partition plate 40 and the ball bearing sleeve 34 are installed inside the cylinder. When a pressure difference is generated between the two air chambers 36, they start to rotate. The angle can be precisely adjusted by controlling the air pressure difference. The sealing rings 35 between the rib plate and the cylinder shaft, and between the cylinder shaft and the bearing cover 41, prevent air leakage between the two air chambers.

[0032] The horizontal adjustment linear motor 28 is used to drive the left reflector rotation mechanism, lens rotation mechanism 29, and lens adjustment structure to move left and right, ensuring that the lens in the lens rotation mechanism 29 is directly below the laser hole of the worktable 3, the reflector of the left reflector rotation mechanism is directly below the second laser receiver 13, and the 45° angle lens of the lens adjustment structure is on the same axis as the reflector of the right reflector rotation mechanism 25. The vertical adjustment linear motor 22 is used to drive the reflector of the right reflector rotation mechanism 25 to be directly below the first laser receiver 9.

[0033] The rotating frame 30 is mounted on the other side of the frame 27, and the two are connected by a drive shaft 24 and a key. The adjusting cylinder 23 can drive the internal structure to rotate by air intake and exhaust. The angle of the rotating frame 30 is adjusted by the drive shaft 24 so that the laser can be reflected at a specific angle, allowing the first laser receiver 9 and the second laser receiver 13 to receive the laser signal. The lens adjustment structure allows the laser refracted by the lens of the lens rotating mechanism 29 to be turned at a 45° angle, projecting the laser onto the reflector of the right-side reflector rotating mechanism 25.

[0034] Optical path principle as follows Figure 2and 3 As shown, the laser emitted by the laser emitter 11 passes through the laser hole on the worktable 3 and is projected onto the lens of the lens rotation mechanism 29. The lens is a beam splitter, which splits the laser beam into two parallel beams in a 180° direction after reflection and refraction. The reflected beam is projected to the left onto the reflector of the left reflector rotation mechanism 31. The rotating frame is adjusted to be at a 45° angle with the horizontal laser. The laser beam is reflected upward at a 90° angle with the horizontal direction by the reflector on the rotating frame 30 and passes through the worktable to be received by the laser receiver 13. The refracted laser beam is projected onto the 45° lens of the lens holder 26 (the 45° lens here refers to the lens having an angle of 45 degrees with the Z-axis, and the lens itself is a plane mirror). After reflection, it is projected backward at a 90° direction onto the reflector of the right reflector rotation mechanism 25. The right reflector rotation mechanism 25 is adjusted to be at a 45° angle with the reflected horizontal laser. After passing through the reflector, the laser beam is reflected at a 90° angle with the horizontal direction and is received by the laser receiver 9.

[0035] In the description of this invention, it should be understood that the terms "front," "rear," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this invention and to simplify 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 limiting the scope of protection of this invention.

[0036] In this invention, unless otherwise specified and limited, the terms "installation," "fixing," etc., should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or the internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meaning of these terms in this invention according to the specific circumstances.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision positioning and adjustment system, characterized in that: It includes a frame, a laser emitting and receiving module located at the top of the frame, a worktable adjustment module located in the middle of the frame, and an optical path adjustment module located at the bottom of the frame; The laser emitting and receiving module includes a laser emitter that moves left and right, a second laser receiver, and a first laser receiver that moves back and forth; the laser emitter emits light vertically downwards, and the first laser receiver and the second laser receiver receive the vertically incident light. The worktable adjustment module includes a work frame that moves back and forth and a worktable that moves left and right on the work frame. The worktable is vertically provided with a laser hole so that the emitted light emitted by the laser emitter can pass through. The optical path adjustment module includes a left-side mirror rotation mechanism that moves left and right, a lens rotation mechanism, a lens adjustment structure, and a right-side mirror rotation mechanism that moves back and forth. The left reflector rotation mechanism, lens rotation mechanism, and lens adjustment structure are positioned opposite each other. The lens rotation mechanism receives incident light rays passing through the laser aperture, reflects them to the left reflector rotation mechanism, and then refracts them upwards onto the second laser receiver. The lens rotation mechanism receives incident light rays passing through the laser aperture, refracts them to the lens adjustment structure, and then refracts them to the right reflector rotation mechanism, which in turn refracts them upwards onto the first laser receiver.

2. The high-precision positioning and adjustment system as described in claim 1, characterized in that: The laser emitting and receiving module includes two top horizontal linear motors arranged laterally on the top of the frame and one top vertical linear motor arranged longitudinally on the top of the frame; the second laser receiver is movably mounted on the front top horizontal linear motor to move the second laser receiver left and right, the first laser receiver is mounted on the top vertical linear motor to move the first laser receiver back and forth, and the laser emitter is located between the first laser receiver and the second laser receiver and is movably mounted on the rear top horizontal linear motor to move the laser emitter left and right; The worktable adjustment module includes a longitudinal linear motor mounted on the frame and a transverse linear motor mounted on the work stand; the longitudinal linear motor is driven by the work stand to drive the work stand to move back and forth on the frame; the transverse linear motor is driven by the worktable to drive the worktable to move left and right on the work stand. The optical path adjustment module includes three horizontally adjustable linear motors arranged horizontally at the bottom of the frame and a vertically adjustable linear motor arranged vertically at the bottom of the frame; the left mirror rotation mechanism, lens rotation mechanism, and lens adjustment structure are respectively moved by the three horizontally adjustable linear motors to move the left mirror rotation mechanism, lens rotation mechanism, and lens adjustment structure left and right, and the right mirror rotation mechanism is moved by the vertically adjustable linear motor to move the right mirror rotation mechanism back and forth; The optical paths of the left reflector rotation mechanism, lens rotation mechanism, and lens adjustment are corresponding laterally, while the optical paths of the lens adjustment structure and the right reflector rotation mechanism are corresponding longitudinally; the optical paths of the laser emitter, laser aperture, and lens rotation mechanism are corresponding vertically, and the optical paths of the left reflector rotation mechanism and the second laser receiver, the right reflector rotation mechanism, and the first laser receiver are corresponding vertically.

3. The high-precision positioning and adjustment system as described in claim 2, characterized in that: The top horizontal linear motors are arranged in parallel, one in front of the other. The top vertical linear motor is located to the right of the two top vertical linear motors. The first laser receiver, the laser emitter, and the second laser receiver are each provided with a connecting frame and are respectively mounted on the top vertical linear motor, the rear top horizontal linear motor, and the front top horizontal linear motor through their respective connecting frames.

4. The high-precision positioning and adjustment system as described in claim 2, characterized in that: The worktable adjustment module also includes a fine adjustment mechanism, which includes a drive slider connected by a transverse working linear motor. The drive slider is provided with a fine adjustment linear guide rail and a transfer slider so that the drive slider is slidably connected to the transfer slider through the fine adjustment linear guide rail. One end of the driving slider is provided with a fixing plate and a micro-motion cylinder is connected to the fixing plate. The micro-motion cylinder is fixedly connected to the adapter slider to drive the adapter slider to move slightly. A worktable is fixedly connected to the adapter slider.

5. The high-precision positioning and adjustment system as described in claim 4, characterized in that: The workbench includes a work plate and a vertical connecting plate fixedly disposed under the work plate; the laser hole is disposed on the work plate. The workbench adjustment module also includes a side moving mechanism, which includes a vertical slider disposed inside the vertical connecting plate. The inner side of the vertical slider is provided with a working side plate and a side linear guide rail, so that the vertical slider slides relative to the working side plate through the linear guide rail. The working side plate is disposed on one side of the work frame.

6. The high-precision positioning and adjustment system as described in claim 2, characterized in that: The left reflector rotation mechanism, lens rotation mechanism, and right reflector rotation mechanism each include a sliding frame driven by three horizontal adjustment linear motors and one vertical adjustment linear motor, a rotating frame that rotates relative to the frame, and an adjustment cylinder that drives the rotating frame to swing relative to the frame. The left reflector, lens, and right reflector are respectively mounted on their respective rotating frames. The lens adjustment structure includes a lens holder that is driven to slide by a horizontally adjusting linear motor. The lens is mounted on the lens holder and is a plano lens with its surface at a 45° angle to the Z-axis.

7. The high-precision positioning and adjustment system as described in claim 6, characterized in that: The regulating cylinder includes an regulating base and a cylinder body disposed on the regulating base with one end open. A central shaft and two ribs are horizontally arranged in the inner cavity of the cylinder body. A cylinder shaft extends from the open end of the inner cavity of the cylinder body. The cylinder shaft is sleeved in the rotation space formed by the central shaft and the two ribs, so that the cylinder shaft rotates relative to the central shaft and the ribs. A partition is provided around the cylinder shaft in the cylinder body portion, so that the partition divides the space formed by the two ribs into two air chambers. An air pipe is connected to the cylinder body and communicates with the two air chambers. A drive shaft is connected to the end of the cylinder shaft.

8. The high-precision positioning and adjustment system as described in claim 7, characterized in that: The cylinder body is provided with a bearing cover at the open end, and a sealing ring is provided between the rib and the cylinder shaft, and between the cylinder shaft and the bearing cover.

Images