Complete set of long precise hole machining machine tool and machining method thereof

Abstract

The invention discloses a complete set of long precise hole machining machine tool and a machining method thereof, and relates to the technical field of long precise hole machining in the aerospace field, in particular to the complete set of long precise hole machining machine tool and the machining method thereof.The complete set of long precise hole machining machine tool comprises a machining platform, a cutter, a clamping mechanism and a cutter testing block, and the clamping mechanism is arranged on the machining platform and used for fixing a workpiece to be machined; the two cutters are arranged on the two sides of the machining platform, and the cutter testing block is detachably arranged on the machining platform corresponding to the to-be-machined position of the part. The machining method has the advantages that the cutter is calibrated in advance through the cutter testing block and the precise hole measuring system, the machining precision of the long precise hole is guaranteed, and the deviation is strictly controlled within an extremely small range; double-side cutters machine step by step, and the requirement for the stroke of a machine tool is lowered; the device is suitable for four-axis and three-axis machine tools with rotary workbenches and the like, and the applicability of the machine tools is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of long and fine hole processing in the aerospace field, and in particular to a complete set of long and fine hole processing machine tools and a processing method thereof. Background Art

[0002] In today's aerospace field, component integration and structural simplification have become a significant development trend. With the continuous advancement of technology, the size of individual parts has become increasingly large, which not only puts higher standards on the processing requirements of parts, but also greatly increases the difficulty of processing. Taking aircraft manufacturing as an example, the hinge holes on the aircraft are key connection parts, and their processing accuracy directly affects the overall performance and safety and reliability of the aircraft. When multiple parts are integrated into a single part and multiple groups of hinge holes are concentrated in one, the strength of the assembled parts is significantly improved and the assembly requirements are reduced, but at the same time, the accuracy requirements for the holes have reached an unprecedented level.

[0003] Traditional long and fine hole processing methods expose many problems when facing such complex and high-precision processing tasks. On the one hand, due to the large ratio of processing depth to aperture of long and fine holes, tool vibration and offset are very likely to occur during the processing, resulting in difficulty in ensuring processing accuracy, poor stability of processing accuracy, and uneven product quality of different batches. On the other hand, for processing such long and fine holes, the machine tool is usually required to have a large stroke size, which undoubtedly increases the manufacturing cost and floor space of the machine tool, and limits the versatility and flexibility of the processing equipment. In addition, some existing processing methods are often only applicable to specific types of machine tools. For different types of machine tools, such as a combination of a four-axis machine tool or a three-axis machine tool plus a rotary table, they lack effective adaptability, which further restricts the application of long and fine hole processing technology in a variety of production environments. Summary of the invention

[0004] The present invention aims to overcome the above-mentioned disadvantages of the prior art and provide a complete set of long fine hole machining machine tools and a machining method thereof.

[0005] The technical solution adopted by the present invention is as follows: A complete set of long and fine hole processing machine tools comprises: a processing platform, a tool, a clamping mechanism and a tool test block. The clamping mechanism is arranged on the processing platform for fixing a workpiece to be processed. The tool comprises two tools arranged on both sides of the processing platform. The tool test block is detachably arranged on the processing platform corresponding to the position of the part to be processed.

[0006] Furthermore, the outer shape material of the test tool block is set to be the same as the part to be processed.

[0007] Furthermore, the processing platform is provided with a precise hole measuring system.

[0008] Furthermore, the tool includes a handle and a reamer arranged at the front end of the handle.

[0009] Furthermore, the reamer includes multiple models and is detachably arranged at one end of the handle.

[0010] Furthermore, a processing method of a complete set of long and fine hole processing machine tools comprises the following steps: S1: After setting up the processing platform, fix the parts to be processed through the clamping mechanism; S2: Check the machine tool accuracy and install the tool; S3: Install two test blocks on both sides of the machining platform, corresponding to the positions of the parts to be drilled; S4: First, use the tool on one side to fine-machine the fine hole on one side of the part, and then translate this group of tools to the position of the test tool block for processing to form a control hole; S5: The tool on the other side performs fine hole processing on the other test block to form a counter-drilled hole; S6: Measure the hole positions and diameters of the control holes and the back-drilled holes on the two test tool blocks through a precise hole measuring system, and record the data; S7: Adjust the coordinate system of the tool on the processing side by measuring the data, replace the test tool block for the reverse drilling, continue the reverse drilling, repeat step S6, and adjust the deviation to within the required range; S8: After correction, the tool on one side is translated to the part position to perform fine hole processing on the part; S9: After processing, the parts are transferred to the three-coordinate system for re-measurement of hole position and coaxiality.

[0011] Furthermore, the tool also includes the following steps when processing the fine hole: a small drill is used to drill the bottom hole, the machine tool uses a micrometer to confirm the hole position and measure the hole size, and then the drill is used to expand the hole, and finally a reamer that meets the hole diameter is used to process the one-way hole until it is qualified.

[0012] Furthermore, in step S7, the deviation is adjusted to within 0.01 mm.

[0013] Furthermore, in step S6, a laser tracking measuring instrument is used to measure the coaxiality of the holes on both sides.

[0014] Furthermore, in step S4 and step S8, the tool is directly processed after translation, without the need for tool testing.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: High-precision processing guarantee: The present invention can effectively solve the problem of difficult to ensure and unstable processing accuracy of a set of long and fine holes by setting tools on both sides of the processing platform and using test tool blocks to perform precision debugging before processing. During the processing, the test tool block is processed first, and the hole positions and diameters of the control holes and back-drilled holes processed on the test tool block are measured by a precise hole measuring system, and the coordinate system of the processing tool is adjusted according to the measured data, thereby ensuring that extremely high precision requirements can be met when processing parts. This method of testing the tool before processing can detect and correct problems such as tool offset and vibration that may occur during the processing process in advance, greatly improving the stability of the processing accuracy of long and fine holes, so that the processed long and fine holes can meet the strict requirements of the aerospace field for high-precision parts.

[0016] Machine tool stroke optimization: This solution innovatively adopts the method of processing with tools on both sides separately, and the long fine hole processing can be completed without the machine tool having an excessively large stroke size. Compared with traditional processing methods, the requirements for machine tool stroke size are significantly reduced. During the processing process, after one side of the tool completes the processing of the fine hole on one side of the part, it is translated to the test block position for processing, and the other side of the tool also processes the test block on the other side. Through this step-by-step processing method, the high requirements of the machine tool stroke for long fine hole processing are cleverly solved. This not only reduces the manufacturing cost of the machine tool and reduces the equipment footprint, but also enables high-precision processing of long fine holes on some machine tools with limited strokes, thereby improving the versatility of processing equipment.

[0017] Wide applicability to machine tools: The complete set of long and fine hole processing machine tools and processing methods proposed in the present invention have extremely high applicability to machine tools. Whether it is a four-axis machine tool or a combination of a three-axis machine tool and a rotary table, this solution can be applied to process long and fine holes. The reason is that the core design of this solution, such as the setting method of the tool, the use of the test tool block, and the planning of the processing steps, does not rely on the complex structure or special functions of a specific machine tool. On the contrary, through reasonable processing flow design, the advantages of different types of machine tools are fully utilized, and efficient and high-precision processing of long and fine holes can be achieved on a variety of machine tools and equipment, providing aerospace parts manufacturers with greater flexibility in equipment selection and processing technology selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of a tool of the present invention.

[0019] Markings in the figure: 1- machining platform, 2- tool, 3- clamping mechanism, 4- tool test block, 5- tool handle, 6- reamer. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] Embodiment 1 In this embodiment, if Figure 1 , 2 As shown, a complete set of long precision hole processing machine tools includes: a processing platform, a tool, a clamping mechanism and a test tool block. The clamping mechanism is arranged on the processing platform to fix the workpiece to be processed. The tool includes two tools arranged on both sides of the processing platform. The test tool block is detachably arranged on the processing platform corresponding to the position of the part to be processed.

[0023] The complete set of long and fine hole processing machine tools includes a processing platform, a tool, a clamping mechanism and a tool test block. As a bearing base, the processing platform has a stable structure and can withstand various forces during the processing process. The tools are arranged in pairs on both sides of the processing platform, which can realize bilateral synchronous or step-by-step processing. The clamping mechanism is installed on the processing platform to firmly fix the workpiece to be processed. Its structural design can be flexibly adjusted according to the shape of the workpiece. The tool test block can correspond to the position of the part to be processed and can be detachably installed on the processing platform.

[0024] The setting of tools on both sides lays the foundation for subsequent high-precision processing and reducing dependence on machine tool travel. Before processing, install the test tool block first, and the tools on both sides can be used to test the test tool block first to find out in advance the possible offset, vibration and other problems that affect the accuracy of the tool, so as to ensure the accuracy when the parts are officially processed. At the same time, this double-sided tool layout can reduce the demand for the overall travel of the machine tool through step-by-step operation during processing, thereby improving the versatility of processing equipment.

[0025] Furthermore, the outer shape material of the test tool block is set to be the same as the part to be processed.

[0026] The shape of the test block is precisely copied according to the shape of the part to be processed, and the material is also the same as the part to be processed. For example, if the part to be processed is made of aluminum alloy, the test block is also made of the same grade of aluminum alloy.

[0027] Since the shape and material of the test block are consistent with the part to be processed, during the test process, the working conditions of the tool cutting the test block are very similar to those of the part. In this way, by measuring and analyzing the control holes and back-drilled holes formed after the test block is processed, the actual accuracy of the tool when processing the part can be more accurately reflected, thereby providing a more reliable data basis for the subsequent adjustment of the tool coordinate system and effectively ensuring the processing accuracy of the part.

[0028] Furthermore, the processing platform is provided with a precise hole measuring system.

[0029] The processing platform is integrated with a precise hole measurement system, which consists of high-precision sensors, data acquisition devices, and analysis software. The sensor can collect relevant data of the processing holes on the test block or parts in real time, the data acquisition device is responsible for collating and transmitting the data obtained by the sensor, and the analysis software performs in-depth processing and analysis of the data.

[0030] After the test block is processed, the precise hole measurement system can quickly and accurately measure the hole position and diameter of the control hole and the back-drilled hole. Based on the measurement data, the operator can accurately adjust the coordinate system of the machining tool so that the tool can be accurately positioned when machining parts, effectively solving the problem of difficult to ensure machining accuracy. At the same time, the existence of this system enables high-precision machining based on accurate measurement data on different types of machine tools (such as four-axis and three-axis plus rotary table machine tools), improving the applicability of machine tools.

[0031] Furthermore, the tool includes a handle and a reamer arranged at the front end of the handle.

[0032] The tool consists of a handle and a reamer. The handle is used to connect the machine tool spindle to transmit power and motion. The reamer is installed at the front end of the handle and directly participates in the fine hole processing of the part. Its cutting edge is specially designed to meet the processing requirements of different precision and surface quality.

[0033] During the processing, a stable tool holder ensures the stability of the reamer during high-speed rotation and cutting, and reduces tool vibration, which is crucial to ensuring the accuracy of long and fine hole processing. At the same time, different types of machine tools have different installation and connection methods for tools, but due to the universal design of the tool holder, it can be adapted to a variety of machine tools. Combined with the tool test and precise hole measurement system, it can achieve high-precision long and fine hole processing on various machine tools, improving the applicability of machine tools.

[0034] Furthermore, the reamer includes multiple models and is detachably arranged at one end of the handle.

[0035] The reamer is designed in a variety of different models, each model corresponds to a different hole diameter, cutting edge shape and precision level. The reamer is detachably mounted on one end of the handle through a specific connection structure, which is convenient for quick replacement according to actual processing needs.

[0036] When faced with long and fine hole processing tasks with different aperture requirements, you can flexibly select the appropriate reamer. During the trial stage, you can replace the reamer of the appropriate model in time according to the measurement results to achieve the best processing accuracy. This feature enables the same machine tool to cope with diverse long and fine hole processing needs, which not only improves the ability to ensure processing accuracy, but also improves the applicability of the machine tool to different processing tasks.

[0037] Embodiment 2 A processing method of a complete set of long and fine hole processing machine tools comprises the following steps: S1: After setting up the processing platform, fix the parts to be processed through the clamping mechanism; S2: Check the machine tool accuracy and install the tool; S3: Install two test blocks on both sides of the machining platform, corresponding to the positions of the parts to be drilled; S4: First, use the tool on one side to fine-machine the fine hole on one side of the part, and then translate this group of tools to the position of the test tool block for processing to form a control hole; S5: The tool on the other side performs fine hole processing on the other test block to form a counter-drilled hole; S6: Measure the hole positions and diameters of the control holes and the back-drilled holes on the two test tool blocks through a precise hole measuring system, and record the data; S7: Adjust the coordinate system of the tool on the processing side by measuring the data, replace the test tool block for the reverse drilling, continue the reverse drilling, repeat step S6, and adjust the deviation to within the required range; S8: After correction, the tool on one side is translated to the part position to perform fine hole processing on the part; S9: After processing, the parts are transferred to the three-coordinate system for re-measurement of hole position and coaxiality.

[0038] The entire processing method revolves around the structures of a complete set of long and fine hole processing machine tools, involving the coordinated operation of the processing platform, tool, test tool block, clamping mechanism and precise hole measuring system.

[0039] According to the processing steps, the parts are first fixed, and the test block is used for trial processing. Then the tool coordinate system is measured and adjusted through the precise hole measurement system, and finally the parts are processed. This orderly process ensures the stability of processing accuracy by testing the tool in advance to find problems and make adjustments. At the same time, the step-by-step processing of double-sided tools and the use of test blocks reduce the dependence on machine tool travel. Different types of machine tools can achieve high-precision processing of long and fine holes according to this process, which improves the applicability of machine tools.

[0040] Furthermore, the tool also includes the following steps when processing the fine hole: a small drill is used to drill the bottom hole, the machine tool uses a micrometer to confirm the hole position and measure the hole size, and then the drill is used to expand the hole, and finally a reamer that meets the hole diameter is used to process the one-way hole until it is qualified.

[0041] In the process of tool processing fine holes, drills and reamers of different specifications are involved, as well as micrometers for table measurement. The micrometer is installed at a specific position on the machine tool and can accurately measure the hole position and hole diameter.

[0042] First, use a small drill to drill the bottom hole, then use a micrometer to confirm the hole position and measure the hole size, then use a drill to expand the hole, and finally use a reamer for fine processing. This series of fine operations gradually improves the accuracy of the hole and effectively guarantees the accuracy of long and fine hole processing. On different types of machine tools, this fine processing process can be used to utilize the basic measurement and tool replacement functions of the machine tool itself to achieve high-precision long and fine hole processing, thereby enhancing the applicability of the machine tool.

[0043] Furthermore, in step S7, the deviation is adjusted to within 0.01 mm.

[0044] In the tool coordinate system adjustment process, the tool coordinate system is adjusted through the machine tool control system using the data measured by the precise hole measurement system. The control system has high-precision coordinate calculation and adjustment functions.

[0045] The precise hole measuring system obtains the measurement data of the test block after processing, and the machine tool control system accurately adjusts the deviation to within 0.01mm. This high-precision adjustment greatly guarantees the accuracy of subsequent part processing and solves the problem of difficult to ensure processing accuracy. At the same time, the adjustment process can be realized on different types of machine tools through the corresponding control system, which improves the applicability of the machine tool.

[0046] Furthermore, in step S6, a laser tracking measuring instrument is used to measure the coaxiality of the holes on both sides.

[0047] When measuring the coaxiality of the holes on both sides, a laser tracking measuring instrument is used. The instrument consists of a laser emitting device, a tracking device, and a data processing device, and can perform non-contact measurement of the processed holes.

[0048] The laser tracking measuring instrument measures the coaxiality of the reference hole and the back-drilled hole on the test tool block with high accuracy and convenient measurement. Adjusting the tool coordinate system according to the measurement results can effectively ensure the coaxiality accuracy of the hole during part processing and solve the problem of processing accuracy. In addition, the instrument can be used in conjunction with different types of machine tools, which improves the applicability of machine tools in long and fine hole processing.

[0049] Furthermore, in step S4 and step S8, the tool is directly processed after translation, without the need for tool testing.

[0050] After completing the test block processing and accurately adjusting the tool coordinate system, the tool is translated to the part position for direct processing. The machine tool is equipped with an accurate tool translation positioning mechanism to ensure that the tool accurately reaches the part processing position after translation.

[0051] Since the tool state and coordinate system have been fully adjusted during the tool trial block processing stage, the tool can be directly processed after translation, which reduces the processing time and improves the processing efficiency. At the same time, this method of direct processing after tool trial can be achieved on different types of machine tools through accurate tool translation positioning, ensuring processing accuracy and improving the applicability of machine tools.

[0052] The specific implementation steps are: Preliminary preparation Processing platform debugging: According to the size and shape characteristics of the parts to be processed, carefully adjust the levelness, flatness and other parameters of the processing platform. Use a high-precision level to measure and ensure that the deviation of the processing platform in the horizontal direction is controlled within a very small range, generally not exceeding ±0.05mm, to provide a stable foundation for subsequent processing.

[0053] Clamping mechanism setting: Install high-precision hydraulic clamps on the processing platform and adjust the clamps adaptively according to the shape and size of the parts. For example, for aircraft parts with complex curved surfaces, the position and pressure of multiple adjustable clamping points on the hydraulic clamps can be adjusted to achieve uniform and firm clamping of the parts to prevent displacement or shaking of the parts during processing.

[0054] Machine tool precision inspection: Use professional inspection tools, such as laser interferometers, to comprehensively inspect key precision indicators such as positioning accuracy, repeatability, and straightness of machine tools. The machine tool positioning accuracy is required to reach ±0.01mm, the repeatability accuracy is within ±0.005mm, and the straightness error is not more than ±0.003mm to meet the high-precision processing requirements of long fine holes.

[0055] Tool selection and installation: According to the diameter, depth and processing requirements of the long and fine hole to be processed, select the appropriate tool holder and reamer from a variety of tool types. For example, for a long and fine hole with a diameter of 15mm and a depth of 80mm, select an appropriate tool holder and a reamer with a diameter of 15mm, and firmly install the reamer at the front end of the tool holder to ensure that the concentricity deviation of the reamer installation is less than ±0.002mm.

[0056] Installation and debugging of test block Preparation of test tool blocks: prepare two test tool blocks whose appearance and material are exactly the same as the part to be processed. If the part to be processed is made of aluminum alloy, the test tool blocks should also be made of the same grade of aluminum alloy.

[0057] Installation of test tool blocks: Use high-precision positioning devices to install two test tool blocks on both sides of the processing platform to ensure that the installation position of the test tool blocks accurately corresponds to the position of the parts to be drilled, and the position accuracy is controlled within ±0.01mm.

[0058] Fine hole processing on one side of the part Drilling the bottom hole: Use a small drill bit to drill the bottom hole. The diameter of the small drill bit is generally 1 / 3 - 1 / 2 of the final hole diameter. For example, for a final hole diameter of 15mm, choose a small drill bit with a diameter of 5mm.

[0059] Hole position and hole diameter measurement: After the bottom hole is drilled, use a micrometer to confirm the hole position and measure the size of the hole to ensure that the hole position deviation is within ±0.01mm and the hole diameter deviation is within ±0.02mm.

[0060] Hole expansion: Use a suitable drill bit to expand the hole diameter to close to the final hole diameter.

[0061] Reaming finishing: Replace the reamer that matches the hole diameter and finish the one-way hole until it reaches the qualified size.

[0062] Test block processing: After completing the fine hole processing on one side of the part, move this group of tools horizontally to the test block position, and process the test block according to the same processing steps as above to form a control hole.

[0063] The other side of the test block processing The tool on the other side performs fine hole processing on the other test block. The processing steps are exactly the same as the fine hole processing steps on one side of the above part to form a back-drilled hole. During the processing, various processing parameters are strictly controlled to ensure that the dimensional accuracy, position accuracy and other parameters of the back-drilled hole meet the requirements.

[0064] Test block measurement and tool adjustment Hole position and diameter measurement: Using the precise hole measurement system and laser measurement technology, the hole position and diameter of the control holes and back-drilled holes on the two test blocks are measured with a measurement accuracy of ±0.005mm. At the same time, a laser tracking measuring instrument is used to measure the coaxiality of the holes on both sides to ensure that the coaxiality error is within ±0.01mm.

[0065] Tool coordinate system adjustment: According to the measurement data, the coordinate system of the tool on the post-processing side is adjusted through the machine tool control system so that the tool processing position can accurately correspond to the part's processing position. After the adjustment is completed, replace the back-drilling test block, continue the back-drilling process, and measure again. According to the measurement results, further fine-tune the tool coordinate system, and repeat this process until the deviation is adjusted to within 0.01mm.

[0066] Finishing hole processing on the other side of the part After the correction, the tool on one side is translated to the part position, and the other side of the part is directly processed. The processing follows the steps of drilling the bottom hole, measuring the hole position and diameter, expanding the hole, and finishing the hole to ensure that the precision of the processed fine hole meets the design requirements.

[0067] Parts retest and acceptance Part re-measurement: After the parts are processed, they are transferred to the three-dimensional coordinate measuring machine to re-measure the hole position and coaxiality. The measurement accuracy of the three-dimensional coordinate measuring machine can reach ±0.003mm, which can comprehensively and accurately evaluate the processing quality of the parts.

[0068] Acceptance processing: If the re-test results meet the design requirements, the part processing is completed and can enter the next process; if it does not meet the requirements, the reasons are analyzed in detail, such as tool wear, machine tool vibration, etc., and corresponding adjustments and rework are made until the part quality meets the acceptance standards.

[0069] The above description is only a preferred embodiment of the invention and is not intended to limit the invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention should be included in the protection scope of the invention.

Claims

1. A complete set of long and fine hole processing machine tools, characterized in that: include: A processing platform, a tool, a clamping mechanism and a tool test block. The clamping mechanism is arranged on the processing platform to fix the workpiece to be processed. The tool includes two tools arranged on both sides of the processing platform. The tool test block is detachably arranged on the processing platform corresponding to the position of the part to be processed.

2. A complete set of long and fine hole machining machine tools according to claim 1, characterized in that: The outer shape and material of the test tool block are set to be the same as the part to be processed of the part.

3. A complete set of long and fine hole machining machine tools according to claim 1, characterized in that: The processing platform is provided with a precise hole measuring system.

4. A complete set of long and fine hole machining machine tools according to claim 1, characterized in that: The tool comprises a tool handle and a reamer arranged at the front end of the tool handle.

5. A complete set of long and fine hole machining machine tools according to claim 4, characterized in that: The reamer includes various models and is detachably arranged at one end of the handle.

6. A processing method for a complete set of long and fine hole machining machine tools, applied to a complete set of long and fine hole machining machine tools as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1: After setting up the processing platform, fix the parts to be processed through the clamping mechanism; S2: Check the machine tool accuracy and install the tool; S3: Install two test blocks on both sides of the machining platform, corresponding to the positions of the parts to be drilled; S4: First, use the tool on one side to fine-machine the fine hole on one side of the part, and then translate this group of tools to the position of the test tool block for processing to form a control hole; S5: The tool on the other side performs fine hole processing on the other test block to form a counter-drilled hole; S6: Measure the hole positions and diameters of the control holes and the back-drilled holes on the two test tool blocks through a precise hole measuring system, and record the data; S7: Adjust the coordinate system of the tool on the processing side by measuring the data, replace the test tool block for the reverse drilling, continue the reverse drilling, repeat step S6, and adjust the deviation to within the required range; S8: After correction, the tool on one side is translated to the part position to perform fine hole processing on the part; S9: After processing, the parts are transferred to the three-coordinate system for re-measurement of hole position and coaxiality.

7. A processing method for a complete set of long and fine hole processing machine tools according to claim 6, characterized in that: The tool also includes the following steps when processing fine holes: a small drill is used to drill the bottom hole, the machine tool uses a micrometer to confirm the hole position and measure the hole size, then the drill is used to expand the hole, and finally a reamer that meets the hole diameter is used to process the one-way hole until it is qualified.

8. A processing method for a complete set of long and fine hole processing machine tools according to claim 6, characterized in that: In step S7, the deviation is adjusted to within 0.01 mm.

9. A processing method for a complete set of long and fine hole processing machine tools according to claim 6, characterized in that: In step S6, a laser tracking measuring instrument is used to measure the coaxiality of the holes on both sides.

10. A processing method for a complete set of long and fine hole processing machine tools according to claim 7, characterized in that: In the steps S4 and S8, the tool is directly processed after translation, without the need for tool testing.

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