A laser drilling jig

Abstract

The utility model belongs to the field of laser processing technology, specifically relates to a kind of laser drilling fixture, including bottom plate, mounting plate, driving block, connecting rod, linear drive mechanism and several fixture assemblies;The utility model can realize the stepless, accurate and synchronous adjustment of the inclination angle of multiple clamped workpieces, ensures the precision and consistency of processing angle, can also clamp multiple workpieces simultaneously for synchronous processing, realizes small batch processing, greatly improves the output per unit time, can quickly adapt to the needs of different workpiece models and processing layout, meets the flexible production needs of multiple varieties and small batches, reduces the number of special fixtures that need to be customized, reduces tooling cost and management complexity.

Description

Technical Field

[0001] This utility model belongs to the field of laser processing technology, and specifically relates to a laser drilling fixture. Background Technology

[0002] Aero-engine turbine blades typically feature numerous complex film cooling holes on their surfaces. These holes, often angled at specific angles, form a cooling film to ensure the blades' safe and stable operation. Laser drilling technology, due to its high precision and non-contact operation, has become a key process for machining these film cooling holes; however, it places extremely high demands on the hole's machining accuracy, angle consistency, and repeatability. Currently, when processing such inclined holes with lasers, the workpiece is often required to have a precise tilt angle relative to the laser beam axis. However, many general-purpose laser processing equipment has its motion freedom mainly concentrated in the linear motion of the X, Y, and Z axes. When processing film holes with different tilt angles, since the equipment itself lacks the ability to adjust the workpiece to rotate around the axis, it is often necessary to rely on the tilt of the workpiece posture to meet the requirements of the beam incident angle.

[0003] In existing technologies, special fixtures with fixed angles are commonly used to meet the processing requirements of different air film holes. Therefore, each time a hole with a different angle is processed, the corresponding fixture must be changed. This results in frequent fixture changes during the production process, which is cumbersome, inflexible, time-consuming, and costly. In addition, existing fixtures only support single workpiece clamping, which limits processing efficiency and results in low production capacity per unit time, making it difficult to adapt to the flexible production needs of multiple varieties, small batches, and rapid changeover. Utility Model Content

[0004] The purpose of this utility model is to provide a laser drilling fixture that solves the technical problems of inconvenient angle adjustment, poor versatility, low production changeover efficiency, and low processing efficiency caused by the reliance on a large number of dedicated fixed-angle fixtures in the existing technology.

[0005] This utility model discloses a laser drilling fixture, comprising: Base plate; The mounting plate has one end hinged to the base plate and its tilt angle can be adjusted in a vertical plane. The driving block is slidably disposed on the top surface of the base plate and located below the mounting plate, and the sliding direction is perpendicular to the rotation axis of the mounting plate; The connecting rod has one end hinged to the drive block and the other end hinged to the mounting plate. A linear drive mechanism is mounted on the base plate and is connected to the drive block for transmission. Several clamping assemblies, each clamping assembly including a base and a workpiece clamp detachably mounted on the base, wherein the base has multiple mounting holes; The mounting plate has multiple threaded holes arranged in a rectangular array on its top surface. By passing bolts through the mounting holes on the base and screwing them into the corresponding threaded holes, the base can be detachably mounted on the top surface of the mounting plate.

[0006] This application enables stepless, accurate, and synchronous adjustment of the tilt angle of multiple clamped workpieces, ensuring the precision and consistency of the machining angle. It can also clamp multiple workpieces simultaneously for synchronous machining, realizing small-batch processing and significantly increasing output per unit time. It can quickly adapt to the needs of different workpiece models and machining layouts, meeting the flexible production needs of multi-variety, small-batch production, and reducing the number of custom-made special fixtures, thereby reducing tooling costs and management complexity.

[0007] Based on the above technical solution, the solution of this application can be further improved as follows: Preferably, it includes: Two support rods are symmetrically arranged on both sides of the drive block along the sliding direction; The connecting rod has two rods, each corresponding to one of the support rods. One end of the connecting rod is hinged to the corresponding support rod, and the other end is hinged to the bottom surface of the mounting plate. This design can evenly transmit the unidirectional driving force of the driving block to both sides of the bottom surface of the mounting plate, thereby enhancing the motion stability and effectively preventing the mounting plate from tilting due to uneven force during the flipping process, ensuring precise and stable rotation.

[0008] Preferably, the linear drive mechanism includes: The lead screw is arranged horizontally and threadedly connected to the drive block; Two fixing blocks are respectively rotatably installed at both ends of the lead screw and fixed to the top surface of the base plate; The drive assembly is installed on the top surface of the base plate and located on the side of the base plate away from the hinge end of the mounting plate. Its output end is connected to one end of the lead screw. With this solution, the rotational motion is accurately and stably converted into the horizontal linear displacement of the drive block, ensuring that the tilt angle of the mounting plate can be smoothly and steplessly adjusted, and has good self-locking ability, thus ensuring the accurate and stable setting of the workpiece spatial angle.

[0009] Preferably, the driving component includes: Support columns are fixedly installed on the top surface of the base plate; One end of the drive shaft is rotatably mounted on the support column; A hand crank is fixedly installed at the other end of the drive shaft; The drive gear is fixedly sleeved on the drive shaft; The driven gear is fixedly sleeved on one end of the lead screw and meshes with the driving gear. This solution converts the operator's rotational action into a precise low-speed rotation of the lead screw, achieving effortless, precise, and stable micro-adjustment of the tilt angle of the mounting plate, and has the advantages of simple structure and high reliability.

[0010] Preferably, the driving component includes: The protective box is fixedly installed on the top surface of the base plate; The support column, the driving gear, and the driven gear are all housed within the protective housing, while the hand crank is located outside the protective housing. This design effectively isolates debris from the external processing environment, preventing gear damage that could lead to transmission jamming or decreased accuracy. Furthermore, by isolating the moving parts from the operator, it enhances operational safety, ensures convenient angle adjustment, and guarantees long-term stability, reliability, and precision of the transmission.

[0011] Preferably, the bottom of the drive block is provided with multiple guide strips, and the top surface of the base plate is provided with multiple guide grooves. The guide strips and guide grooves correspond one-to-one and slide in fit. By adopting this solution, the linear motion of the drive block is precisely guided, preventing the drive block from deviating or jamming during the motion. The combination of multiple sets of strips and grooves enhances the rigidity and vibration resistance of the moving parts, ensuring the accuracy and repeatability of the final angle adjustment.

[0012] Preferably, it includes: Two hinge components are disposed between the mounting plate and the base plate, and are symmetrically arranged on both sides of the sliding direction of the drive block; Each of the hinge components includes: The upper support lug is fixedly mounted on the bottom surface of the mounting plate; The lower support lug is fixedly mounted on the top surface of the base plate and is close to the upper support lug; The hinge shaft is horizontally inserted through the upper and lower lugs. This design provides a definite, stable, and low-friction fulcrum for the mounting plate, ensuring the accuracy and consistency of rotational movement. Furthermore, the symmetrical arrangement effectively resists lateral forces, preventing the mounting plate from shifting or wobbling, and ensuring the rigidity, movement stability, and reliability of angle adjustment.

[0013] Through the above technical solution, this utility model achieves the following beneficial effects: 1. This application, through a linear drive mechanism, connecting rod and drive block, can linearly convert horizontal displacement into the tilt angle adjustment of the mounting plate, realizing stepless, accurate and synchronous adjustment of the tilt angle of multiple clamped workpieces, ensuring the accuracy and consistency of the machining angle; 2. This application enables the simultaneous clamping and processing of multiple workpieces by using the array of threaded holes on the top surface of the mounting plate and the mounting holes on the base. This achieves small-batch processing, significantly increases output per unit time, and allows for flexible layout and quick change of fixture components. It can quickly adapt to the needs of different workpiece models and processing layouts, meeting the flexible production needs of multiple varieties and small batches. 3. This application reduces the number of custom-made fixtures required by using a detachable design of a special workpiece fixture with a standard base, thereby reducing tooling costs and management complexity. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a rear top perspective view of the laser drilling fixture described in a specific embodiment of the present invention; Figure 2 This is a top-view perspective view of the laser drilling fixture described in a specific embodiment of the present invention. Figure 3 for Figure 1 The diagram shows the structure of the guide bar in the laser drilling fixture. Figure 4 for Figure 1 The diagram shows the structure of the drive assembly in the laser drilling fixture. Explanation of reference numerals in the attached figures: 1. Base plate; 2. Mounting plate; 3. Drive block; 4. Connecting rod; 5. Linear drive mechanism; 6. Fixture assembly; 7. Support rod; 8. Hinge assembly; 101. Guide groove; 201. Threaded hole; 301. Guide bar; 51. Lead screw; 52. Fixing block; 53. Drive assembly; 531. Support column; 532. Drive shaft; 533. Hand crank; 534. Drive gear; 535. Driven gear; 536. Protective box; 61. Base; 611. Mounting hole; 62. Workpiece fixture; 81. Upper support ear; 82. Lower support ear; 83. Hinge shaft. Detailed Implementation

[0016] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0017] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0019] Example: like Figure 1 As shown in the figure, this application discloses a laser drilling fixture for laser precision machining of parts with complex spatial angle film hole structures, such as turbine blades of aero-engines. It can replace a variety of special fixtures with fixed angles, simplify production preparation, and support simultaneous clamping of multiple workpieces, thereby adapting to the flexible production needs of multi-variety, small-batch and rapid production changeover. Its specific structure includes: a base plate 1, a mounting plate 2, a drive block 3, a connecting rod 4, a linear drive mechanism 5, and several fixture components 6.

[0020] The base plate 1 provides a stable mounting reference for other components.

[0021] Mounting plate 2 is a component that supports the workpiece and enables angle adjustment. One end of it is hinged to the base plate 1, thus forming a rotation fulcrum, allowing the entire plate surface to be raised or lowered in a vertical plane, thereby adjusting the tilt angle in a vertical plane.

[0022] The drive block 3 is slidably disposed on the top surface of the base plate 1 and located below the mounting plate 2. Its sliding direction is perpendicular to the rotation axis of the mounting plate 2, enabling it to perform horizontal reciprocating motion, thereby driving the mounting plate 2 to rotate around the rotation fulcrum through the connecting rod 4.

[0023] One end of the connecting rod 4 is hinged to the drive block 3, and the other end is hinged to the mounting plate 2. It is used to precisely and linearly convert the linear motion of the drive block 3 into the rotational motion of the mounting plate 2, so as to realize continuous adjustment of the angle.

[0024] The linear drive mechanism 5 is mounted on the base plate 1 and is connected to the drive block 3. It can control the displacement and position of the drive block 3, thereby indirectly and accurately controlling the tilt angle of the mounting plate 2, ensuring high precision and repeatability of the angle setting.

[0025] The fixture assembly 6 includes a base 61 and a workpiece fixture 62 detachably mounted on the base 61. The base 61 has multiple mounting holes 611. The base 61 is a standardized interface plate connected to the mounting plate 2. The workpiece fixture 62 is a special clamping part designed according to the shape of the turbine blade and the clamping requirements. The clamping method can be spring clamping or three-jaw chuck clamping, etc., and can be changed according to the shape (such as square or round) and characteristics of the workpiece to be processed. In the production process, only the special workpiece fixture 62 and a small number of standard bases 61 need to be manufactured and stored, thereby reducing tooling costs and improving changeover efficiency.

[0026] The top surface of the mounting plate 2 is provided with multiple threaded holes 201 arranged in a rectangular array, thereby forming multiple mounting stations, supporting the simultaneous installation of multiple fixture components 6, realizing parallel processing of multiple workpieces, and significantly improving the utilization efficiency and overall production efficiency of the laser equipment. By passing bolts through the mounting holes 611 on the base 61 and screwing them into the corresponding threaded holes 201, the base 61 can be detachably installed on the top surface of the mounting plate 2. The connection is stable and easy to install and remove, ensuring that the base 61 does not move or shift during the processing.

[0027] Understandably, by selecting different combinations of threaded holes 201 and mounting holes 611, the base 61 of the same fixture assembly 6 can be fixed at different predetermined positions on the mounting plate 2. This provides a basis for flexibly arranging multiple fixture assemblies 6 on the same mounting plate 2, realizing synchronous processing of "one plate, multiple stations". In addition, when different types of blades need to be processed, it is only necessary to replace the entire fixture assembly 6 equipped with the corresponding special workpiece fixture 62, without adjusting the base plate 1, mounting plate 2 and other structures responsible for angle adjustment, which greatly shortens the production preparation time.

[0028] The workflow of the above technical solution is as follows: First, according to the model of the workpiece to be processed, the corresponding special workpiece fixture 62 is installed on the standardized base 61 to form a complete fixture assembly 6. Next, the workpieces to be processed are sequentially clamped into the dedicated workpiece fixtures 62 and locked. Next, using the rectangular array threaded holes 201 on the top surface of the mounting plate 2 and the mounting holes 611 on the base 61, several (e.g., four) clamp assemblies 6 are mounted on the mounting plate 2 by bolts. Then, the linear drive mechanism 5 is activated, causing the drive block 3 to slide on the base plate 1. The horizontal movement of the drive block 3 is transmitted through the connecting rod 4, pushing the mounting plate 2 to rotate around its hinge point with the base plate 1. Then, when the mounting plate 2 rotates all the clamped workpieces to the predetermined angle required by the laser beam, the movement stops; at this time, all workpieces simultaneously and synchronously reach the same processing tilt angle. Finally, under the program control of the laser processing machine tool, the laser beam sequentially drills holes at the positions of the air film holes that need to be processed on each workpiece. Since all workpieces have been pre-adjusted to the correct angle, the machine tool only needs to perform linear motion on the X, Y, and Z axes to complete the processing of all holes.

[0029] This utility model has the following technical effects: 1. Through the linear drive mechanism 5, connecting rod 4 and drive block 3, the horizontal displacement can be linearly converted into the tilt angle adjustment of the mounting plate 2, realizing stepless, accurate and synchronous adjustment of the tilt angle of multiple clamped workpieces, ensuring the accuracy and consistency of the processing angle. Second, by cooperating with the array threaded holes 201 on the top surface of the mounting plate 2 and the mounting holes 611 on the base 61, multiple workpieces can be clamped at the same time for synchronous processing, realizing small batch processing, greatly improving the output per unit time, and enabling flexible layout and quick replacement of the fixture assembly 6, which can quickly adapt to the needs of different workpiece models and processing layouts, meeting the flexible production needs of multiple varieties and small batches. Third, the detachable design of the dedicated workpiece fixture 62 and the standard base 61 reduces the number of custom-made fixtures required, thereby lowering tooling costs and management complexity.

[0030] In some embodiments, a protractor is installed on the side of the base plate 1 to visually read the tilt angle of the mounting plate 2, and a distance sensor is provided on the base plate 1 to measure the change in distance between a point on the mounting plate 2 and the base plate 1. The tilt angle can be obtained after conversion, which can complement and verify the readings obtained by the protractor. Through the dual angle feedback mechanism, the accuracy and reliability of the angle setting are ensured, meeting the requirements of high-precision machining.

[0031] In some embodiments, the surfaces of the mounting plate 2 and the fixture assembly 6 are provided with a thermal barrier coating (such as yttrium-stabilized zirconia, abbreviated as YSZ). This coating can effectively resist the high temperature and plasma splash generated during laser processing, prevent the metal fixture body from overheating and softening or burning, thereby ensuring the geometric accuracy of the fixture and extending its service life. This greatly improves the durability and service life of the fixture under harsh working conditions and ensures the accuracy stability of long-term processing.

[0032] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, it also includes: Two support rods 7 are symmetrically arranged on both sides of the drive block 3 along the sliding direction; Among them, there are two connecting rods 4, which correspond one-to-one with the support rods 7. One end of the connecting rod 4 is hinged to the corresponding support rod 7, and the other end is hinged to the bottom surface of the mounting plate 2.

[0033] Through the above design, the unidirectional driving force of the drive block 3 can be evenly transmitted to both sides of the bottom surface of the mounting plate 2, thereby enhancing the motion stability and effectively preventing the mounting plate 2 from tilting due to uneven force during the flipping process, ensuring precise and stable rotation.

[0034] In some embodiments, such as Figure 1 and Figure 2 As shown, the linear drive mechanism 5 includes: The lead screw 51 is arranged horizontally and threadedly connected to the drive block 3, which can form a precision helical pair with the internal thread machined inside the drive block 3. Two fixed blocks 52 are respectively rotatably installed at both ends of the lead screw 51 and fixed to the top surface of the base plate 1. They provide stable and reliable rotational support for the lead screw 51, constrain other degrees of freedom except rotation around its own axis, and ensure the concentricity and stability of its operation. The drive assembly 53 is mounted on the top surface of the base plate 1 and is located on the side of the base plate 1 away from the hinge end of the mounting plate 2, so as to facilitate operation and maintenance and make the structural layout more compact. Its output end is connected to one end of the lead screw 51 for outputting controllable rotary motion.

[0035] During operation, the drive assembly 53 outputs controllable rotational motion, thereby driving the lead screw 51 to rotate synchronously. The lead screw 51 converts the rotational motion of the lead screw 51 into the horizontal linear motion of the drive block 3 through the helical pair formed with the drive block 3.

[0036] Through the above design, the rotational motion is precisely and stably converted into the horizontal linear displacement of the drive block 3, ensuring that the tilt angle of the mounting plate 2 can be smoothly and steplessly adjusted with good self-locking ability, thus ensuring the precise and stable setting of the workpiece spatial angle.

[0037] Based on the above embodiments, such as Figure 4 As shown, the driving component 53 includes: The support column 531 is fixedly installed on the top surface of the base plate 1 and serves as a mounting support for the drive shaft 532, providing stable and reliable rotational support. A drive shaft 532, one end of which is rotatably mounted on a support column 531, is used to transmit rotational power; The hand crank 533 is fixedly installed at the other end of the drive shaft 532, which makes it easy for the operator to manually input the rotational power and amplifies the operating torque through the lever effect, making the rotation easier. The drive gear 534 is fixedly sleeved on the transmission shaft 532 and is used to transmit rotational motion. Driven gear 535 is fixedly sleeved on one end of lead screw 51 and meshes with drive gear 534. It is used to receive the rotational power of drive gear 534 and drive lead screw 51 to rotate synchronously.

[0038] During operation, the operator turns the hand crank 533, which drives the transmission shaft 532 and the drive gear 534 to rotate. Then, the drive gear 534 drives the driven gear 535 and the lead screw 51 to rotate synchronously through meshing.

[0039] Through the above design, the operator's rotational action is converted into the precise low-speed rotation of the lead screw 51, which realizes the effortless, precise and stable fine adjustment of the tilt angle of the mounting plate 2, and has the advantages of simple structure and high reliability.

[0040] In this embodiment, as Figure 1 and Figure 2 As shown, the driving component 53 includes: Protective box 536 is fixedly installed on the top surface of base plate 1; The support column 531, the driving gear 534 and the driven gear 535 are all housed inside the protective box 536, while the hand crank 533 is located outside the protective box 536.

[0041] The above design effectively isolates debris from the external processing environment, preventing gear damage that could lead to transmission jamming or decreased accuracy. It also improves operational safety by isolating moving parts from the operator, ensuring convenient angle adjustment and guaranteeing long-term stability, reliability, and precision of the transmission.

[0042] In some embodiments, such as Figures 1 to 3 As shown, the bottom of the drive block 3 is provided with multiple guide bars 301, and the top surface of the base plate 1 is provided with multiple guide grooves 101. The guide bars 301 and the guide grooves 101 correspond one-to-one and slide together.

[0043] Through the above design, precise guidance of the linear motion of the drive block 3 is achieved, preventing the drive block 3 from deviating or jamming during the motion. The rigidity and vibration resistance of the moving parts are enhanced by the cooperation of multiple sets of grooves, ensuring the accuracy and repeatability of the final angle adjustment.

[0044] In some embodiments, such as Figure 1 As shown, it includes: Two hinge components 8 are located between the mounting plate 2 and the base plate 1, and are symmetrically arranged on both sides of the sliding direction of the drive block 3. They can evenly distribute and transmit the force and vibration of the mounting plate 2 to the base plate 1, thereby enhancing the rigidity and stability of the connection and preventing structural deformation or shaking caused by single-point support.

[0045] Each hinge assembly 8 includes: The upper support lug 81 is fixedly mounted on the bottom surface of the mounting plate 2 to raise the support point; The lower support lug 82 is fixedly mounted on the top surface of the base plate 1 and is close to the upper support lug 81. It is used to raise the support point and restrict axial movement by fitting together. The hinge shaft 83, which is horizontally inserted through the upper support 81 and the lower support 82, serves as the rotation shaft of the upper support 81, ensuring the accuracy and uniqueness of the rotation trajectory of the mounting plate 2.

[0046] The above design provides a definite, stable and low-friction fulcrum for the mounting plate 2, ensuring the accuracy and consistency of the rotational motion. The symmetrical arrangement also effectively resists lateral forces, preventing the mounting plate 2 from shifting or wobbling, and ensuring the rigidity, motion stability and reliability of the angle adjustment.

[0047] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A laser drilling fixture, characterized in that, include: Base plate; The mounting plate has one end hinged to the base plate and its tilt angle can be adjusted in a vertical plane. The driving block is slidably disposed on the top surface of the base plate and located below the mounting plate, and the sliding direction is perpendicular to the rotation axis of the mounting plate; The connecting rod has one end hinged to the drive block and the other end hinged to the mounting plate. A linear drive mechanism is mounted on the base plate and is connected to the drive block for transmission. A plurality of clamping assemblies, each clamping assembly including a base and a workpiece clamp detachably mounted on the base, wherein the base has a plurality of mounting holes; The mounting plate has multiple threaded holes arranged in a rectangular array on its top surface. By passing bolts through the mounting holes on the base and screwing them into the corresponding threaded holes, the base can be detachably mounted on the top surface of the mounting plate.

2. The laser drilling fixture according to claim 1, characterized in that, include: Two support rods are symmetrically arranged on both sides of the drive block along the sliding direction; The connecting rod has two rods, each corresponding to one of the support rods. One end of the connecting rod is hinged to the corresponding support rod, and the other end is hinged to the bottom surface of the mounting plate.

3. The laser drilling fixture according to claim 1, characterized in that, The linear drive mechanism includes: The lead screw is arranged horizontally and threadedly connected to the drive block; Two fixing blocks are respectively rotatably installed at both ends of the lead screw and fixed to the top surface of the base plate; The drive assembly is mounted on the top surface of the base plate and located on the side of the base plate away from the hinge end of the mounting plate, and its output end is connected to one end of the lead screw for transmission.

4. The laser drilling fixture according to claim 3, characterized in that, The driving component includes: Support columns are fixedly installed on the top surface of the base plate; One end of the drive shaft is rotatably mounted on the support column; A hand crank is fixedly installed at the other end of the drive shaft; The drive gear is fixedly sleeved on the drive shaft; The driven gear is fixedly sleeved on one end of the lead screw and meshes with the driving gear.

5. The laser drilling fixture according to claim 4, characterized in that, The driving component includes: The protective box is fixedly installed on the top surface of the base plate; The support column, the driving gear, and the driven gear are all housed inside the protective box, while the hand crank is located outside the protective box.

6. The laser drilling fixture according to claim 1, characterized in that, The bottom of the drive block is provided with multiple guide strips, and the top surface of the base plate is provided with multiple guide grooves. The guide strips and the guide grooves correspond one-to-one and slide together.

7. The laser drilling fixture according to claim 1, characterized in that, include: Two hinge components are disposed between the mounting plate and the base plate, and are symmetrically arranged on both sides of the sliding direction of the drive block; Each of the hinge components includes: The upper support lug is fixedly mounted on the bottom surface of the mounting plate; The lower support lug is fixedly mounted on the top surface of the base plate and is close to the upper support lug; The hinge shaft is horizontally inserted through the upper support lug and the lower support lug.

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