Compact laser multi-degree-of-freedom adjusting device

Abstract

The utility model relates to a multi-degree-of-freedom adjusting device for a compact laser. The multi-degree-of-freedom adjusting device comprises a machine table fixing beam; the mounting back plate is fixed on the machine table fixing beam; the XY-axis manual displacement table is fixedly connected with the mounting back plate, and the XY-axis manual displacement table is configured to enable the leveling seat mounting plate to move forwards, backwards, leftwards and rightwards; the leveling seat mounting plate is fixedly connected with the XY-axis manual displacement table; the fixing plate is fixedly connected with the leveling seat mounting plate; the adjusting plate is connected with the fixing plate, and the adjusting plate can move up and down and rotate relative to the fixing plate; the X-axis rotation adjusting plate is fixedly connected with the adjusting plate, and the X-axis rotation adjusting plate is provided with an adjusting kidney-shaped hole; and the laser is connected with the adjusting kidney-shaped hole through an adjusting bolt. The adjusting device can achieve six-degree-of-freedom adjustment of the laser, and the adjusting device is compact in overall structure and small in occupied space.

Description

Technical Field

[0001] The utility model relates to the technical field of optical instrument adjustment, in particular to a multi-degree-of-freedom adjustment device for a compact laser. Background Art

[0002] A laser refers to a device that can emit laser light, and it is one of the essential core components in modern laser processing systems. Currently, during the assembly of a laser, since the light source emitted by the laser may not be on the same axis as the optical axis of the optical system, in order to ensure the uniform consistency of the laser light output, it is usually necessary to adjust the laser.

[0003] Chinese Patent CN 221134770 U discloses a laser adjustment device. By providing a first support frame, a second support frame, and a third support frame, and respectively providing a first driving mechanism, a second driving mechanism, and a third driving mechanism thereon, the first support frame can drive the fixing frame to move left and right through the second support frame and the third support frame to adjust the left and right distance of the laser, and the second support frame can drive the fixing frame to move back and forth through the third support frame to adjust the front and back distance of the laser. The third support frame can also drive the fixing frame to move up and down on its side wall to adjust the up and down height of the laser. Through the superposition of three driving mechanisms and support frames, this device can only achieve three-degree-of-freedom adjustment in the XYZ directions, cannot achieve the rotation adjustment of the laser, and wastes more space.

[0004] Chinese Patent CN221226813U proposes an adjustment component for a semiconductor laser. According to structures such as a sliding groove, a lifting rod, and a limiting plate, the height adjustment of the laser is realized. Simply by superposing the sliding groove and the lifting rod, it can only achieve single-degree-of-freedom up and down movement, cannot achieve six-degree-of-freedom adjustment, and has a large space occupancy rate.

[0005] Therefore, there is a need for a laser adjustment device that can achieve six-degree-of-freedom adjustment, occupies a small space, and has a compact structure. Summary of the Utility Model

[0006] To solve at least some of the above problems in the prior art, the utility model provides a multi-degree-of-freedom adjustment device for a compact laser, including:

[0007] A machine table fixed beam;

[0008] An installation back plate, which is fixed on the machine table fixed beam;

[0009] An XY-axis manual displacement stage, which is fixedly connected to the installation back plate, and the XY-axis manual displacement stage is configured to be able to move the leveling seat mounting plate back and forth, left and right;

[0010] A leveling seat mounting plate, which is fixedly connected to the XY-axis manual displacement stage;

[0011] A fixing plate, which is fixedly connected to the leveling seat mounting plate;

[0012] An adjusting plate, which is connected to the adjusting plate, and the adjusting plate can move up and down and rotate relative to the fixing plate;

[0013] An X-axis rotation adjusting plate, which is fixedly connected to the adjusting plate, and the X-axis rotation adjusting plate has adjusting waist-shaped holes; and

[0014] A laser, which is connected to the adjusting waist-shaped hole through an adjusting bolt.

[0015] Furthermore, the machine table fixing beam has an adjusting window;

[0016] The mounting back plate covers the adjusting window;

[0017] The XY-axis manual displacement table is installed inside the mounting back plate and above the adjusting window;

[0018] The leveling seat mounting plate is located in the adjusting window.

[0019] Furthermore, the size of the adjusting window is larger than the size of the leveling seat mounting plate.

[0020] Furthermore, the fixing plate has 3 oblong holes and a limit arm moving hole, and the centers of the 3 oblong holes are on the same horizontal line;

[0021] The fixing plate has a fixed limit arm, and the fixed limit arm extends out from the limit arm moving hole on the fixing plate.

[0022] Furthermore, it further includes:

[0023] A center pin passes through the adjusting plate through an oblong hole and inserts into the fixing plate;

[0024] A front fastening bolt passes through two oblong holes and then inserts into the fixing plate;

[0025] An adjusting beam, which is installed on the adjusting plate and is located below the limit arm;

[0026] A spring, which is located between the limit arm and the adjusting beam;

[0027] A Z-axis adjusting bolt sequentially passes through the fixed limit arm, the spring and the adjusting beam to fix the three;

[0028] Furthermore, the size of the limit arm moving hole is larger than the fixed limit arm;

[0029] The length direction of the oblong hole is the vertical direction.

[0030] Further, it further includes a first fine-tuning set screw, which is arranged on the adjusting plate and can adjust the distance between the adjusting plate and the fixing plate.

[0031] Further, there are 3 first fine-tuning set screws, and the 3 first fine-tuning set screws are not on the same straight line.

[0032] Further, it further includes:

[0033] a Y-axis rotation adjusting plate, which is installed on the side surface of the fixing plate through a side fastening bolt;

[0034] a second fine-tuning set screw, which is installed on the Y-axis rotation adjusting plate and can push the adjusting plate to rotate relative to the fixing plate from the side.

[0035] Further, at least 2 second fine-tuning set screws are installed on the upper and lower parts of the Y-axis rotation adjusting plate.

[0036] The utility model has at least the following beneficial effects: The XY-axis manual displacement stage is set in the utility model to realize the translational adjustment of the X-axis and the Y-axis, the X-axis rotation adjusting plate and the adjusting waist hole are set to realize the rotation adjustment of the X-axis, the translational freedom adjustment of the Z-axis can be realized through the adjusting plate, the fixing plate, the fixed limiting arm, the spring and the adjusting beam, and then the rotational freedom adjustment of the Z-axis can be realized through the first fine-tuning set screw, and the rotational freedom adjustment of the Y-axis can be realized through the Y-axis rotation adjusting plate and the second fine-tuning set screw. The adjustment device can realize the six-degree-of-freedom adjustment of the laser, and the overall structure of the adjustment device is compact and occupies a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To further clarify the above and other advantages and features of the embodiments of the present utility model, a more specific description of the embodiments of the present utility model will be presented with reference to the accompanying drawings. It can be understood that these drawings only depict the typical embodiments of the present utility model and will not be considered as limiting its scope. In the drawings, for clarity, the same or corresponding components will be denoted by the same or similar reference numerals.

[0038] Figure 1 shows a front view of a compact laser multi-degree-of-freedom adjustment device according to an embodiment of the present utility model; and

[0039] Figure 2 shows a side view of a compact laser multi-degree-of-freedom adjustment device according to an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] It should be noted that the components in the drawings may be exaggerated for illustration purposes and are not necessarily to scale.

[0041] In the present utility model, each embodiment is merely intended to illustrate the solution of the present utility model and should not be construed as restrictive.

[0042] In the present utility model, unless otherwise specified, the quantifiers "a" and "one" do not exclude the scenario of multiple elements.

[0043] It should also be noted here that in the embodiments of the present utility model, for the sake of clarity and simplicity, only a part of the components or assemblies may be shown. However, those of ordinary skill in the art can understand that under the teaching of the present utility model, the required components or assemblies can be added according to the specific scenario requirements.

[0044] It should also be noted here that within the scope of the present utility model, the terms "same", "equal", "equivalent", etc. do not mean that the two values are absolutely equal, but allow a certain reasonable error. That is to say, the said terms also cover "substantially the same", "substantially equal", "substantially equivalent".

[0045] It should also be noted here that in the description of the present utility model, the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as explicitly or implicitly indicating relative importance.

[0046] In addition, the embodiments of the present utility model describe the process steps in a specific order. However, this is only for the convenience of distinguishing each step and does not limit the sequence of each step. In different embodiments of the present utility model, the sequence of each step can be adjusted according to the process adjustment.

[0047] In the present utility model, the term "upper part" means that the distance from the specific structure to the bottom is greater than the distance to the top, and the term "lower part" means that the distance from the specific structure to the bottom is less than the distance to the top.

[0048] Figure 1 The front view of a multi-degree-of-freedom adjustment device for a compact laser according to an embodiment of the present utility model is shown. Figure 2 The side view of a multi-degree-of-freedom adjustment device for a compact laser according to an embodiment of the present utility model is shown.

[0049] Such as Figure 1 and 2As shown, the multi-degree-of-freedom adjustment device for the compact laser has six degrees of freedom for compact adjustment. The scale in the height direction is only 186 mm, the scale in the length direction is only 40 mm, and the scale in the width direction is less than 100 mm. Compared with the simple superposition of degrees of freedom, the size is significantly reduced.

[0050] A multi-degree-of-freedom adjustment device for a compact laser includes an XY-axis manual displacement stage 1, a mounting backplane 2, a machine table fixing beam 3, a leveling seat mounting plate 4, a fixing plate 5, an adjusting plate 6, an X-axis rotation adjusting plate 7, an adjusting waist hole 71, a laser 8, a center pin 9, a fixed limiting arm 10, an adjusting beam 11, a Z-axis adjusting bolt 12, a spring 13, a first fine-tuning top screw 14, a Y-axis rotation adjusting plate 15, a second fine-tuning top screw 16, a front fastening bolt 17, and a side fastening bolt 18.

[0051] The mounting backplane 2 is fixed on the machine table fixing beam 3, and the XY-axis manual displacement stage is fixedly connected to the mounting backplane 2. The leveling seat mounting plate is fixed to the XY-axis manual displacement stage, and the fixing plate 5 and the leveling seat mounting plate 4 are fixedly fastened by an embedded bolt. The adjusting plate 6 is connected to the fixing plate 5 by a fixing bolt and is fastened in the non-adjustment state. The X-axis rotation adjusting plate 7 is connected to the adjusting plate 6, and the laser 8 is connected to the X-axis rotation adjusting plate 7. In other words, the load pressure of the entire adjustment mechanism is concentrated on the mounting backplane 2.

[0052] To facilitate the translational movement of the leveling seat mounting plate 4 along the X-axis and Y-axis under the adjustment of the XY-axis manual displacement stage 1, an adjustment window (not shown) with a size larger than the leveling seat mounting plate 4 is provided on the machine table fixing beam 3. The mounting plate 4 is located above the adjustment window and can cover the adjustment window. The adjustment window has a certain amount of surplus space for the leveling seat mounting plate 4 to move. In fact, the adjustment of the laser is very small, not exceeding millimeter-level adjustment, so the front-back, left-right movement can be achieved only by means of a precision leveling seat.

[0053] The XY-axis manual displacement stage can move the leveling seat mounting plate 4 back and forth, left and right. The XY-axis manual displacement stage 1 includes an X-axis precision leveling seat 101 and a Y-axis precision leveling seat 102, which are used for the translational degree-of-freedom adjustment of the X-axis and Y-axis, and the translational adjustment is achieved by adjusting screws. The XY-axis manual displacement stage is a prior art. In this embodiment, the model of the XY-axis manual displacement stage selected is SJF17-60. The inverted load of this structure is the same as the horizontal load. The inverted load is adopted in this embodiment, the stroke is ±6.5 mm, and the load tolerance is 186 N, meeting the strength requirements.

[0054] X-axis translational degree of freedom adjustment: From the perspective of the front view, tighten the X-axis precision leveling seat 101, and the mechanism will shift to the right; loosen the X-axis precision leveling seat 101, and the mechanism will shift to the left. Y-axis translational degree of freedom: From the perspective of the front view, tighten the Y-axis precision leveling seat 102, and the mechanism will shift forward; loosen the Y-axis precision leveling seat 102, and the mechanism will shift backward. The XY-axis manual displacement stage 1 is existing, and its adjustment method is also the prior art, which will not be elaborated here.

[0055] The X-axis rotation adjustment plate 7 is fixed to the lower part of the adjustment plate 6, and the X-axis rotation adjustment plate 7 is perpendicular to the adjustment plate 6. There are 2 adjustment slotted holes 71 on the X-axis rotation adjustment plate 7. The laser 8 is fixed to the adjustment slotted holes 71 through adjustment bolts. When adjustment is needed, loosen the adjustment bolts, manually adjust the laser 8 to rotate a certain angle, and then tighten the adjustment bolts to complete the X-axis rotation adjustment. Through the adjustment slotted holes 71, the X-axis rotation of the laser 8 can be realized within ±15°.

[0056] The adjustment plate 6 can move up and down and rotate relative to the fixed plate 5. The center pin 9 passes through the adjustment plate 6 and inserts into the fixed plate 5. The function of the center pin 9 is to make the mechanism centered as much as possible during adjustment to adjust the rotational degree of freedom and avoid causing translational deviation in the X-axis direction. There are 3 oblong holes on the adjustment plate 6. The center pin 9 passes through one of the oblong holes and then inserts into the fixed plate 5. 2 front fastening bolts 17 pass through the other 2 oblong holes and then insert into the fixed plate 5. The centers of the 3 oblong holes are on the same horizontal line, and the adjustment plate 6 can rotate a certain angle relative to the front fastening bolts 17 and the center pin 9. The length direction of the oblong holes is the vertical direction. The oblong holes cooperate with the center pin 9 to limit the left and right translation of the adjustment plate 6, and it can only move up and down and rotate. There is a limit arm moving hole on the adjustment plate 6, and the size of the limit arm moving hole is larger than that of the fixed limit arm 10, leaving space for the relative movement of the fixed limit arm 10 and the adjustment plate 6.

[0057] The fixed limit arm 10 is actually a protruding structure of the fixed plate 5. The adjustment beam 11 and the adjustment plate 6 are fastened by a fixed bolt. The Z-axis adjustment bolt 12 passes through the fixed limit arm 10, through the spring 13 and the adjustment beam 11 in sequence to fix the three. The inner diameter of the spring 13 is larger than that of the Z-axis adjustment bolt 12. A counterbore is opened on the adjustment beam 11 to sink the bottom of the spring partly to prevent the spring from shifting during adjustment. There are also 3 first fine-tuning jackscrews 14 between the adjustment plate 6 and the fixed plate 5, and the surface shape can be adjusted by the three-point positioning method.

[0058] Z-axis translational degree of freedom adjustment: Tighten the Z-axis adjustment bolt 12. Since both the fixed limit arm 10 and the fixed plate 5 are fixed without degrees of freedom, the adjustment beam 11 is subjected to a reaction force and drives the adjustment plate 6 to move upward through the thread shear force, and the spring 13 is compressed to store elastic potential energy; loosen the Z-axis adjustment bolt 12, and under the action of gravity and the elastic potential energy of the spring, the adjustment plate 6 moves downward, and the spring releases the elastic potential energy.

[0059] The first fine-tuning set screw 14 is installed on the adjusting plate 6. When the first fine-tuning set screw 14 is tightened, the first fine-tuning set screw 14 will abut against the fixed plate 5, and the reaction force will cause the adjusting plate 6 to move away from the fixed plate 5. When the first fine-tuning set screw 14 is loosened, the distance between the adjusting plate 6 and the fixed plate 5 will be reduced. The number of the first fine-tuning set screws 14 is 3, and the 3 first fine-tuning set screws 14 are not on a straight line.

[0060] Z-axis rotation freedom adjustment: Loosen the front fastening bolt 17, loosen the upper one of the first fine-tuning set screws 14, tighten the lower two first fine-tuning set screws 14, and then tighten the front fastening bolt 17 to achieve a right deflection in the side view perspective.

[0061] Similarly, loosen the front fastening bolt 17, loosen the lower two first fine-tuning set screws 14, tighten the upper one of the first fine-tuning set screws 14, and then tighten the front fastening bolt 17 to achieve a left deflection in the side view perspective.

[0062] The Y-axis rotation adjusting plate 15 is installed on the side of the fixed plate 5 through the side fastening bolt 18, and the Y-axis rotation freedom of the 01 laser is adjusted by adjusting the adjusting plate 6 through the second fine-tuning set screw 16. The second fine-tuning set screw 16 is installed on the Y-axis rotation adjusting plate 15. When the second fine-tuning set screw 16 is tightened, the end of the second fine-tuning set screw 16 abuts against the side of the adjusting plate 6, which will cause the adjusting plate 6 to move away from the Y-axis rotation adjusting plate 15. Then when the second fine-tuning set screw 16 is loosened, the adjusting plate 6 will move towards the Y-axis rotation adjusting plate 15. Two second fine-tuning set screws 16 are installed on the upper and lower parts of the Y-axis rotation adjusting plate 15.

[0063] Y-axis rotation freedom adjustment: Loosen the front fastening bolt, loosen the upper one of the second fine-tuning set screws 16, tighten the lower one of the second fine-tuning set screws 16, and then tighten the front fastening bolt to achieve a right deflection in the front view perspective. Similarly, by loosening the front fastening bolt, loosening the lower one of the second fine-tuning set screws 16, tightening the upper one of the second fine-tuning set screws 16, and then tightening the front fastening bolt, a left deflection in the front view perspective is achieved.

[0064] Although some embodiments of the present invention have been described in this application document, those skilled in the art can understand that these embodiments are only shown as examples. Those skilled in the art can conceive of numerous variant schemes, alternative schemes, and improvement schemes under the teaching of the present invention without exceeding the scope of the present invention. The appended claims are intended to define the scope of the present invention and thereby cover the methods and structures within the scope of these claims themselves and their equivalent transformations.

Claims

1. A compact laser multi-degree-of-freedom adjustment device, characterized in that: include: Machine fixing beam; Install the back plate, which is fixed on the fixed beam of the machine table; An XY-axis manual translation stage, which is fixedly connected to the mounting back plate, and the XY-axis manual translation stage is configured to enable the leveling seat mounting plate to move forward, backward, left, and right; A leveling seat mounting plate, which is fixedly connected to the XY-axis manual translation stage; A fixing plate fixedly connected to the leveling seat mounting plate; An adjusting plate connected to the adjusting plate, wherein the adjusting plate can move up and down and rotate relative to the fixing plate; An X-axis rotation adjustment plate, which is fixedly connected to the adjustment plate, and the X-axis rotation adjustment plate has an adjustment waist hole; as well as The laser is connected with the adjusting waist hole through an adjusting bolt.

2. The compact laser multi-degree-of-freedom adjustment device according to claim 1, characterized in that: The machine platform fixed beam has an adjustment window; The mounting back plate cover is arranged on the adjustment window; The XY-axis manual translation stage is installed on the inner side of the mounting back plate, above the adjustment window; The leveling seat mounting plate is located in the adjustment window.

3. The compact laser multi-degree-of-freedom adjustment device according to claim 2, characterized in that: The size of the adjustment window is larger than the size of the leveling seat mounting plate.

4. The compact laser multi-degree-of-freedom adjustment device according to claim 1, characterized in that: The fixing plate is provided with three oblong holes and a movable hole for the limit arm, and the centers of the three oblong holes are on the same horizontal line; The fixing plate is provided with a fixing limit arm, and the fixing limit arm extends out from a limit arm moving hole on the fixing plate.

5. The compact laser multi-degree-of-freedom adjustment device according to claim 4, characterized in that: Also includes: The center pin passes through an oblong hole through the adjustment plate and is inserted into the fixing plate; A front fastening bolt, which passes through two oblong holes and then is inserted into the fixing plate; An adjusting beam, which is mounted on the adjusting plate and is located below the limiting arm; a spring, located between the limiting arm and the adjusting beam; The Z-axis adjusting bolt passes through the fixed limit arm, the spring and the adjusting beam in sequence to fix the three.

6. The compact laser multi-degree-of-freedom adjustment device according to claim 5, characterized in that: The size of the movable hole of the limiting arm is larger than that of the fixed limiting arm; The length direction of the oblong hole is the vertical direction.

7. The compact laser multi-degree-of-freedom adjustment device according to claim 5, characterized in that: It also includes a first fine-tuning top screw, which is arranged on the adjustment plate and can adjust the distance between the adjustment plate and the fixing plate.

8. The compact laser multi-degree-of-freedom adjustment device according to claim 7, characterized in that: There are three first fine-tuning top screws, and the three first fine-tuning top screws are not in a straight line.

9. The compact laser multi-degree-of-freedom adjustment device according to claim 5, characterized in that: Also includes: A Y-axis rotation adjustment plate, which is mounted on the side of the fixed plate through side fastening bolts; The second fine-tuning screw is installed on the Y-axis rotation adjustment plate and can push the adjustment plate to rotate relative to the fixed plate from the side.

10. The compact laser multi-degree-of-freedom adjustment device according to claim 9, characterized in that: At least two of the second fine-tuning screws are installed on the upper and lower parts of the Y-axis rotation adjustment plate.

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