A complete set of long precision hole processing machine tools and its processing method

Abstract

The present invention discloses a complete set of long precision hole machining machine tools and a machining method thereof, relating to the technical field of long precision hole machining in the aerospace field, specifically relating to a complete set of long precision hole machining machine tools and a machining method thereof, including: a machining platform, a tool, a clamping mechanism and a tool testing block. The clamping mechanism is arranged on the machining platform for fixing the workpiece to be machined. The tool includes two arranged on both sides of the machining platform, and the tool testing block is detachably arranged on the machining platform corresponding to the position of the part to be machined. The advantages are as follows: Through the tool testing block and the precise hole measuring system, the tool is calibrated in advance to ensure the machining precision of the long precision hole, and the deviation is strictly controlled within a very small range; The bilateral tools are processed step by step, reducing the requirements for the machine tool stroke; It is applicable to various machine tools such as four-axis, three-axis plus rotary worktable, etc., significantly improving the applicability of the machine tool.

Description

Technical Field

[0001] The present invention relates to the technical field of long precision hole machining in the aerospace field, and particularly relates to a complete set of long precision hole machining machine tools and a machining method thereof. Background Art

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

[0003] Traditional long precision hole machining methods expose many problems when facing such complex and high-precision machining tasks. On the one hand, due to the large ratio of the machining depth to the hole diameter of long precision holes, tool vibration, offset, etc. are likely to occur during the machining process, resulting in difficult-to-guarantee machining accuracy and poor stability of machining accuracy, and the product quality of different batches varies. On the other hand, for machining such long precision holes, the machine tool usually needs to have a large stroke size, which undoubtedly increases the manufacturing cost and floor area of the machine tool, restricting the versatility and flexibility of the machining equipment. In addition, some existing machining methods are often only applicable to specific types of machine tools and lack effective adaptability for different types of machine tools, such as the combination of four-axis machine tools or three-axis machine tools plus rotary tables, further restricting the application of long precision hole machining technology in diverse production environments. Summary of the Invention

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

[0005] The technical solution adopted by the present invention is as follows:

[0006] A complete set of long precision hole machining machine tools includes: a machining platform, a tool, a clamping mechanism, and a trial cutting block. The clamping mechanism is arranged on the machining platform to fix the workpiece to be machined. There are two tools, which are arranged on both sides of the machining platform, and the trial cutting block is detachably arranged on the machining platform corresponding to the position where the part is to be machined.

[0007] Further, the outer shape and material of the trial cutting block are set to be the same as the part to be machined.

[0008] Further, the machining platform is provided with an accurate hole measuring system.

[0009] Furthermore, the tool includes a handle and a reamer arranged at the front end of the handle.

[0010] Furthermore, the reamer includes multiple models and is detachably arranged at one end of the handle.

[0011] Furthermore, a processing method of a complete set of long and fine hole processing machine tools comprises the following steps:

[0012] S1: After setting up the processing platform, fix the parts to be processed through the clamping mechanism;

[0013] S2: Check the machine tool accuracy and install the tool;

[0014] S3: Install two test blocks on both sides of the machining platform, corresponding to the positions of the parts to be drilled;

[0015] 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;

[0016] S5: The tool on the other side performs fine hole processing on the other test block to form a counter-drilled hole;

[0017] 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;

[0018] 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;

[0019] S8: After correction, the tool on one side is translated to the part position to perform fine hole processing on the part;

[0020] S9: After processing, the parts are transferred to the three-coordinate system for re-measurement of hole position and coaxiality.

[0021] 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.

[0022] Furthermore, in step S7, the deviation is adjusted to within 0.01 mm.

[0023] Furthermore, in step S6, a laser tracking measuring instrument is used to measure the coaxiality of the holes on both sides.

[0024] Furthermore, in step S4 and step S8, the tool is directly processed after translation, without the need for tool testing.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] High-precision machining guarantee: In the present invention, by setting tools on both sides of the machining platform and using a tool testing block for precision debugging before machining, the problems of difficult guarantee and instability of the machining precision of a complete set of long precision holes can be effectively solved. During the machining process, first machine the tool testing block, measure the hole positions and hole diameters of the reference holes and counter-drilled holes machined on the tool testing block through an accurate hole measuring system, and adjust the coordinate system of the machining tool according to the measurement data, so as to ensure that when machining parts, extremely high precision requirements can be achieved. This method of testing the tool first and then machining can discover and correct problems such as tool offset and vibration that may occur during the machining process in advance, greatly improving the stability of the machining precision of long precision holes, and enabling the machined long precision holes to meet the strict requirements for high-precision components in the aerospace field.

[0027] Machine tool stroke optimization: This solution innovatively adopts the method of machining with tools on both sides respectively, and the machining of long precision holes can be completed without the need for the machine tool to have an overly large stroke size. Compared with traditional machining methods, the requirements for the stroke size of the machine tool are significantly reduced. During the machining process, after one side tool finishes machining the precision hole on one side of the part, it is translated to the position of the tool testing block for machining, and the other side tool also machines the other side tool testing block. Through this step-by-step machining method, the problem of high requirements for the machine tool stroke in the machining of long precision holes is cleverly solved. This not only reduces the manufacturing cost of the machine tool, decreases the floor area occupied by the equipment, but also enables high-precision machining of long precision holes on some machine tools with limited strokes, improving the versatility of the machining equipment.

[0028] Wide machine tool applicability: The complete set of long precision hole machining machine tools and their machining methods proposed in the present invention have extremely high machine tool applicability. 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 machine long precision holes. The reason is that the core designs of this solution, such as the tool setting method, the use of the tool testing block, and the machining step planning, do not depend on the complex structure or special functions of a specific machine tool. Instead, through a reasonable machining process design, the advantages of different types of machine tools are fully utilized, and high-efficiency and high-precision machining of long precision holes can be achieved on a variety of machine tool equipment, providing greater flexibility for aerospace component manufacturing enterprises in equipment selection and machining process selection. Description of the drawings

[0029] Figure 1 is the structural schematic diagram of the present invention;

[0030] Figure 2 is the structural schematic diagram of the tool of the present invention.

[0031] Markings in the figure:

[0032] 1 - machining platform, 2 - tool, 3 - clamping mechanism, 4 - tool testing block, 5 - tool shank, 6 - reamer. Detailed implementation manners

[0033] The present invention will be described in detail below with reference to the accompanying drawings.

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to 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.

[0035] Embodiment 1

[0036] In this embodiment, as Figure 1 、 2 shown, a complete set of long precision hole machining machine tools includes: a machining platform, a tool, a clamping mechanism and a trial cutting block. The clamping mechanism is arranged on the machining platform to fix the workpiece to be machined. The tool includes two parts arranged on both sides of the machining platform, and the trial cutting block is detachably arranged on the machining platform corresponding to the position where the part is to be machined.

[0037] The complete set of long precision hole machining machine tools includes a machining platform, a tool, a clamping mechanism and a trial cutting block. The machining platform serves as a bearing foundation, has a stable structure, and can withstand various forces during the machining process. The tools are arranged in pairs on both sides of the machining platform, enabling bilateral synchronous or step-by-step machining. The clamping mechanism is installed on the machining platform to firmly fix the workpiece to be machined, and its structural design can be flexibly adjusted according to the shape of the workpiece. The trial cutting block can correspond to the position where the part is to be machined and is detachably installed on the machining platform.

[0038] By arranging the tools on both sides, it lays a foundation for subsequent high-precision machining and reduces the dependence on the stroke of the machine tool. Before machining, the trial cutting block is installed first. The tools on both sides can first machine and test the trial cutting block to detect in advance problems such as possible offsets and vibrations of the tools that affect the accuracy, thereby ensuring the accuracy when machining the part formally. At the same time, this bilateral tool layout can reduce the demand for the overall stroke of the machine tool through step-by-step operations during machining, improving the versatility of the machining equipment.

[0039] Furthermore, the outer shape and material of the trial cutting block are set to be the same as the part to be machined.

[0040] The outer shape of the trial cutting block is precisely replicated according to the shape of the part to be machined, and the material is also selected to be exactly the same as that of the part to be machined. For example, if the part to be machined is made of aluminum alloy, the trial cutting block is also made of the same grade of aluminum alloy.

[0041] Since the shape and material of the trial cutting block are the same as the parts to be machined, during the trial cutting process, the cutting condition of the tool on the trial cutting block is very similar to that when cutting parts. In this way, by measuring and analyzing the reference holes and counter-drilled holes formed after machining the trial cutting block, the actual accuracy of the tool when machining parts can be more accurately reflected, providing a more reliable data basis for subsequent adjustment of the tool coordinate system and effectively guaranteeing the machining accuracy of parts.

[0042] Furthermore, the machining platform is provided with an accurate hole measuring system.

[0043] The accurate hole measuring system is integrated on the machining platform. This system consists of high-precision sensors, data acquisition devices, and analysis software, etc. The sensors can collect relevant data of the machined holes on the trial cutting block or parts in real time. The data acquisition device is responsible for sorting and transmitting the data obtained by the sensors, and the analysis software deeply processes and analyzes the data.

[0044] After the trial cutting block is machined, the accurate hole measuring system can quickly and accurately measure the hole positions and hole diameters of the reference holes and counter-drilled holes. Based on the measurement data, the operator can accurately adjust the coordinate system of the machining tool, enabling the tool to be accurately positioned when machining parts, effectively solving the problem that it is difficult to guarantee the machining accuracy. At the same time, the existence of this system enables high-precision machining to be achieved based on accurate measurement data on different types of machine tools (such as four-axis, three-axis plus rotary table machine tools), improving the applicability of the machine tools.

[0045] Furthermore, the tool includes a tool holder and a reamer provided at the front end of the tool holder.

[0046] The tool is composed of a tool holder and a reamer. The tool holder is used to connect to the machine tool spindle to transmit power and motion. The reamer is installed at the front end of the tool holder and directly participates in the precision hole machining of parts. Its cutting edges are specially designed to meet the machining requirements of different accuracies and surface qualities.

[0047] During the machining process, the stable tool holder ensures the stability of the reamer during high-speed rotation and cutting, reducing tool vibration, which is crucial for guaranteeing the machining accuracy of long precision holes. At the same time, there are certain differences in the installation and connection methods of tools for different types of machine tools. However, due to the universal design of the tool holder, it can be adapted to a variety of machine tools. Combining the trial cutting and accurate hole measuring systems, high-precision long precision hole machining can be achieved on various machine tools, improving the applicability of the machine tools.

[0048] Furthermore, the reamer includes multiple models and is detachably arranged at one end of the tool holder.

[0049] The reamer is designed in multiple different models, and each model corresponds to different hole diameters, cutting edge shapes, and accuracy grades. The reamer is detachably installed at one end of the tool holder through a specific connection structure, facilitating quick replacement according to actual machining requirements.

[0050] When facing long and fine hole processing tasks with different aperture requirements, you can flexibly choose 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.

[0051] Embodiment 2

[0052] A processing method of a complete set of long and fine hole processing machine tools comprises the following steps:

[0053] S1: After setting up the processing platform, fix the parts to be processed through the clamping mechanism;

[0054] S2: Check the machine tool accuracy and install the tool;

[0055] S3: Install two test blocks on both sides of the machining platform, corresponding to the positions of the parts to be drilled;

[0056] 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;

[0057] S5: The tool on the other side performs fine hole processing on the other test block to form a counter-drilled hole;

[0058] 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;

[0059] 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;

[0060] S8: After correction, the tool on one side is translated to the part position to perform fine hole processing on the part;

[0061] S9: After processing, the parts are transferred to the three-coordinate system for re-measurement of hole position and coaxiality.

[0062] 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.

[0063] According to the processing steps, first fix the part, perform trial machining using a tool setting block, then measure and adjust the tool coordinate system through an accurate hole measuring system, and finally machine the part. This orderly process discovers problems and makes adjustments through trial cutting in advance, ensuring the stability of machining accuracy. At the same time, the step-by-step machining of bilateral tools and the use of the tool setting block reduce the dependence on the machine tool stroke, and different types of machine tools can achieve high-precision machining of long precision holes according to this process, improving the applicability of the machine tool.

[0064] Furthermore, when machining precision holes with the tool, the following steps are also included: drilling a pilot hole with a small drill bit, using a dial indicator on the machine tool to check the hole position and measure the hole size, then reaming the hole with a drill bit, and finally using a reamer that meets the hole diameter to machine the one-way hole to the qualified size.

[0065] During the process of machining precision holes with the tool, different specifications of drill bits and reamers are involved, as well as a dial indicator for tableting measurement. The dial indicator is installed at a specific position on the machine tool and can accurately measure the hole position and diameter.

[0066] First, drill a pilot hole with a small drill bit, then use a dial indicator to confirm the hole position and measure the hole size, then ream the hole with a drill bit, and finally finish machining with a reamer. This series of delicate operations gradually improve the accuracy of the hole, effectively ensuring the machining accuracy of long precision holes. On different types of machine tools, through this fine machining process and using the basic measurement and tool change functions of the machine tool itself, high-precision machining of long precision holes can be achieved, enhancing the applicability of the machine tool.

[0067] Furthermore, in step S7, adjust it to within a deviation of 0.01 mm.

[0068] In the link of adjusting the tool coordinate system, the tool coordinate system is adjusted through the machine tool control system using the data measured by the accurate hole measuring system. The control system has high-precision coordinate calculation and adjustment functions.

[0069] The machine tool control system accurately adjusts the deviation to within 0.01 mm by obtaining the measurement data after machining with the tool setting block through the accurate hole measuring system. This high-precision adjustment greatly guarantees the machining accuracy of subsequent parts and solves the problem that it is difficult to ensure machining accuracy. At the same time, this adjustment process can be achieved through the corresponding control system on different types of machine tools, improving the applicability of the machine tool.

[0070] Furthermore, in step S6, a laser tracker is used to measure the coaxiality of the two side holes.

[0071] When measuring the coaxiality of the two side holes, a laser tracker is used. This instrument consists of a laser emission device, a tracking device, and a data processing device, and can perform non-contact measurement on the machined holes.

[0072] The laser tracking measuring instrument measures the coaxiality of the reference holes and counter-bored holes on the tool test block, with high precision and convenient measurement. Adjusting the tool coordinate system according to the measurement results can effectively ensure the coaxiality accuracy of the holes during part machining and solve the machining accuracy problem. Moreover, this instrument can be used in conjunction with different types of machine tools, improving the applicability of the machine tools in long precision hole machining.

[0073] Furthermore, after the tool translation in steps S4 and S8, direct machining is carried out without tool testing.

[0074] After completing the machining of the tool test block and precisely adjusting the tool coordinate system, the tool is translated to the part position for direct machining. The machine tool is equipped with an accurate tool translation and positioning mechanism, which can ensure that the tool accurately reaches the part machining position after translation.

[0075] Since the tool state and coordinate system have been fully adjusted during the tool test block machining stage, the tool directly machines the part after translation, reducing the machining time and improving the machining efficiency. At the same time, this direct machining method based on tool testing can be achieved through accurate tool translation and positioning on different types of machine tools, ensuring the machining accuracy and improving the applicability of the machine tools.

[0076] The specific implementation steps are as follows:

[0077] Preparations

[0078] Debugging of the machining platform: According to the size and shape characteristics of the part to be machined, carefully adjust parameters such as the levelness and flatness of the machining platform. Use a high-precision level for measurement to ensure that the deviation of the machining platform in the horizontal direction is controlled within a very small range, generally not exceeding ±0.05 mm, providing a stable foundation for subsequent machining.

[0079] Setting of the clamping mechanism: Install a high-precision hydraulic fixture on the machining platform and make adaptive adjustments to the fixture according to the shape and size of the part. For example, for an aircraft part with a complex curved surface, the position and pressure of multiple adjustable clamping points on the hydraulic fixture can be adjusted to achieve uniform and firm clamping of the part, preventing the part from displacing or shaking during machining.

[0080] Accuracy detection of the machine tool: Use professional detection tools, such as a laser interferometer, to comprehensively check key accuracy indicators such as the positioning accuracy, repeat positioning accuracy, and straightness of the machine tool. It is required that the positioning accuracy of the machine tool reaches ±0.01 mm, the repeat positioning accuracy is within ±0.005 mm, and the straightness error does not exceed ±0.003 mm to meet the high-precision machining requirements of long precision holes.

[0081] Tool Selection and Installation: According to the aperture, depth of the long precision hole to be machined and the requirements of the machining process, select a suitable tool holder and reamer from various types of tools. For example, for a long precision hole with a diameter of 15 mm and a depth of 80 mm, select a suitable tool holder and a reamer with a diameter of 15 mm, 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 ±0.002 mm.

[0082] Installation and Debugging of the Test Block

[0083] Preparation of the Test Block: Prepare two test blocks with the same shape and material as the part to be machined. For example, if the part to be machined is made of aluminum alloy, the test blocks are also made of the same grade of aluminum alloy.

[0084] Installation of the Test Block: Using a high-precision positioning device, install the two test blocks on both sides of the machining platform respectively, ensuring that the installation positions of the test blocks accurately correspond to the positions of the holes to be drilled on the part, and the position accuracy is controlled within ±0.01 mm.

[0085] Precision Hole Machining on One Side of the Part

[0086] 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 aperture. For example, for a final aperture of 15 mm, select a small drill bit with a diameter of 5 mm.

[0087] Measurement of Hole Position and Aperture: After drilling the bottom hole, immediately use a micrometer to measure the hole position and measure the size of the hole to ensure that the hole position deviation is within ±0.01 mm and the aperture deviation is within ±0.02 mm.

[0088] Reaming: Select a suitable drill bit to ream the hole to expand the diameter of the hole to be close to the final aperture.

[0089] Finish Reaming: Replace the reamer that meets the aperture and perform finish machining on the one-way hole until it is machined to the qualified size.

[0090] Machining of the Test Block: After finishing the precision hole machining on one side of the part, translate the set of tools to the position of the test block and machine the test block according to the same machining steps as above to form a reference hole.

[0091] Machining of the Other Side Test Block

[0092] The tool on the other side performs precision hole machining on the other test block. The machining steps are exactly the same as those for the precision hole machining on one side of the part above to form a counter-drilled hole. During the machining process, strictly control various machining parameters to ensure that parameters such as the dimensional accuracy and position accuracy of the counter-drilled hole meet the requirements.

[0093] Measurement of the Test Block and Tool Adjustment

[0094] Hole position and diameter measurement: Using a precise hole measurement system and laser measurement technology, the hole positions and diameters of the reference holes and counter-bored holes on two tool test blocks are measured, with a measurement accuracy of up to ±0.005 mm. At the same time, a laser tracker is used to measure the coaxiality of the holes on both sides to ensure that the coaxiality error is within ±0.01 mm.

[0095] 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 machining position of the tool can accurately correspond to the position to be machined on the part. After the adjustment is completed, the tool test block for the counter-bored hole is replaced, and the machining of the counter-bored hole is continued. Then, the measurement is carried out again, and the tool coordinate system is further fine-tuned according to the measurement results. This process is repeated until the deviation is adjusted to within 0.01 mm.

[0096] Fine hole machining on the other side of the part

[0097] The tool on the corrected side is translated to the part position, and the fine holes on the other side of the part are directly machined. The machining process follows the steps of drilling the bottom hole, hole position and diameter measurement, reaming, and finishing by boring to ensure that the accuracy of the machined fine holes meets the design requirements.

[0098] Re-inspection and acceptance of the part

[0099] Re-inspection of the part: After the part is machined, it is transferred to a coordinate measuring machine for re-inspection of the hole position and coaxiality. The measurement accuracy of the coordinate measuring machine can reach ±0.003 mm, which can comprehensively and accurately evaluate the machining quality of the part.

[0100] Acceptance processing: If the re-inspection results meet the design requirements, the part machining is completed and it can enter the next process; if not, the reasons are analyzed in detail, such as tool wear, machine tool vibration, etc., and corresponding adjustments and rework are carried out until the part quality reaches the acceptance standard.

[0101] The above are only the preferred embodiments of the invention and are not intended to limit the invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the invention shall be included within the protection scope of the invention.

Claims

1. A processing method for a complete set of long precision hole processing machine tools, which applies a complete set of long precision hole processing machine tools, and is characterized in that: The complete set of long precision hole processing machine tool comprises: 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 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. The processing platform is provided with a precise hole measuring system. 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: The control holes and the back-drilled holes on the two test tool blocks are measured by the precise hole measuring system for hole positions and hole diameters, and the data are recorded; 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.

2. The machining method of a complete set of long precision 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. The processing method of a complete set of long precision hole processing 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.

4. The processing method of a complete set of long precision hole processing machine tools according to claim 3, characterized in that: The reamer includes various models and is detachably arranged at one end of the handle.

5. The machining method of a complete set of long precision hole machining machine tools according to claim 1, 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.

6. The machining method of a complete set of long precision hole machining machine tools according to claim 1, characterized in that: In step S7, the deviation is adjusted to within 0.01 mm.

7. The processing method of a complete set of long precision hole processing machine tools according to claim 1, characterized in that: In step S6, a laser tracking measuring instrument is used to measure the coaxiality of the holes on both sides.

8. The processing method of a complete set of long precision hole processing machine tools according to claim 1, 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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