Tooling and detection method for detecting a fixed guide sleeve device

Abstract

This invention provides a fixture and testing method for inspecting a fixed guide sleeve device. The fixture is rod-shaped and includes, along its axial direction, a tapered portion, a first shaft portion, a threaded portion, and a second shaft portion. The tapered portion mates with the tapered hole of the guide sleeve shaft of the fixed guide sleeve device; the first shaft portion mates with the small hole of the guide sleeve shaft; the threaded portion engages with the internal thread of the guide sleeve nut of the fixed guide sleeve device; the second shaft portion is positioned opposite the spindle of the machine tool, passing through the guide sleeve nut and protruding outside the nut. When inspecting the fixed guide sleeve device after it has been installed on the machine tool, the fixture is installed in the chuck position and tightened with the guide sleeve nut. This allows the central axis of the fixture to be considered the central axis of the fixed guide sleeve. The coaxiality of the machine tool spindle axis and the fixture central axis is then measured, enabling the detection of the coaxiality between the fixed guide sleeve and the spindle. This effectively improves the installation accuracy of the fixed guide sleeve and the machining accuracy of the machine tool.

Description

Technical Field

[0001] This invention belongs to the technical field of fixed guide sleeve devices for longitudinal cutting machine tools, specifically relating to a tooling for inspecting fixed guide sleeve devices and a testing method using the tooling to inspect fixed guide sleeve devices. Background Technology

[0002] Guide bushings used in slitting machine tools come in three forms: electrically driven rotary guide bushings, mechanically synchronized rotary guide bushings, and fixed guide bushings. Electrically driven rotary guide bushings, because they have a built-in motor, can rotate synchronously with the spindle. Mechanically synchronized rotary guide bushings mostly use splined shafts / synchronous pulleys / synchronous belts, and can also achieve synchronous rotation with the spindle. The advantages of these two types of rotary guide bushings are that they have relatively lower requirements for the straightness of the material and the assembly precision of the guide bushing body and the spindle; the guide bushing and the material rotate together, reducing friction. Their disadvantages are a complex mechanical structure, higher cost, and compared to machining with fixed guide bushings, a longer residual material, resulting in material waste, and lower machining accuracy.

[0003] Fixed guide sleeves are fixed to the machine tool column during use and do not rotate with the spindle. Their advantages include simple mechanical structure, relatively low cost, high machining accuracy, and short residual material. The disadvantages are high requirements for material straightness and installation accuracy.

[0004] Currently, the installation accuracy test for fixed guide sleeves includes testing the concentricity of the mounting holes on the column used to install the fixed guide sleeve with the machine tool spindle, as well as the perpendicularity of the mounting surface with the spindle axis. Summary of the Invention

[0005] The inventors discovered that current testing of the installation accuracy of fixed guide sleeves does not include testing whether the central axis of the fixed guide sleeve is coaxial with the axis of the machine tool spindle after the fixed guide sleeve assembly is installed. This means that the machining and assembly errors of the fixed guide sleeve are not eliminated, and the installation accuracy of the fixed guide sleeve on the machine tool cannot be guaranteed, which will affect the machining accuracy of the machine tool.

[0006] The purpose of this invention is to address the shortcomings of existing technologies that fail to detect whether the central axis of the fixed guide sleeve is coaxial with the axis of the machine tool spindle after the fixed guide sleeve assembly is installed, which makes it impossible to guarantee the installation accuracy of the fixed guide sleeve on the machine tool. This invention provides a tooling for detecting the fixed guide sleeve device and a detection method for detecting the fixed guide sleeve device using the tooling.

[0007] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0008] A tooling for inspecting a fixed guide sleeve device is characterized in that: the tooling is rod-shaped, is installed at the chuck position of the fixed guide sleeve device during use, and includes a tapered portion, a first shaft portion, a threaded portion, and a second shaft portion in sequence along the axial direction;

[0009] The tapered portion is used to mate with the tapered hole of the guide sleeve shaft of the fixed guide sleeve device;

[0010] The first shaft portion is used to mate with the small hole of the guide sleeve shaft. The diameter of the first shaft portion is not greater than the minor diameter of the tapered portion. The first shaft portion is provided with a first keyway that mates with the guide pin of the fixed guide sleeve device.

[0011] The threaded part is used to engage with the internal thread of the guide sleeve nut of the fixed guide sleeve device. The major diameter of the threaded part is smaller than the diameter of the small hole of the guide sleeve shaft. The threaded part is provided with a second keyway that mates with the guide pin.

[0012] The second shaft is used to be opposite to the spindle of the machine tool on which the fixed guide sleeve device is installed. The second shaft passes through the guide sleeve nut and protrudes outside the guide sleeve nut.

[0013] Furthermore, the first shaft portion includes a first part that mates with a small hole in the guide sleeve shaft and a second part located between the first part and the tapered portion. The diameter of the second part is smaller than the diameter of the first part so as to leave a gap between it and the guide sleeve shaft. The first keyway is located on the first part.

[0014] Furthermore, the tooling also includes a third shaft portion, which is used to face the sub-spindle of the machine tool and is exposed outside the fixed guide sleeve device.

[0015] Furthermore, the tooling is made of 20CrMnTi.

[0016] Furthermore, the coaxiality tolerance of the tapered portion, the first shaft portion, and the second shaft portion is 2 μm.

[0017] Furthermore, the tooling has a hardness of HRC55-60.

[0018] A method for inspecting a fixed guide sleeve assembly using the aforementioned tooling for inspecting such an assembly is characterized by comprising the following steps:

[0019] Step 1: Measure the coaxiality between the axis of the machine tool sub-spindle and the axis of the machine tool main spindle, and rotate the sub-spindle to measure the perpendicularity between the end face of the adjusting ring and the axis of the main spindle;

[0020] Step 2: Detect the runout of the sub-spindle relative to the inner hole of the adjusting ring;

[0021] Step 3: Connect the assembled fixed guide sleeve device without the pressure ring to the adjusting ring of the machine tool, and adjust the distance between the machine tool tool and the fixed guide sleeve device;

[0022] Step 4: After removing the guide sleeve nut and the chuck, install the tooling on the fixed guide sleeve device so that the tapered part matches the tapered hole of the guide sleeve shaft, and screw the guide sleeve nut into the threaded part to tighten the tooling.

[0023] Step 5: Check the parallelism between the main spindle axis and the axis of the second shaft;

[0024] Step 6: Measure the coaxiality between the main spindle axis and the axis of the second shaft.

[0025] Furthermore, the above detection method also includes the following steps:

[0026] Step 7: Check the parallelism between the axis of the secondary spindle and the axis of the third shaft.

[0027] Step 8: Measure the coaxiality between the secondary spindle axis and the axis of the third shaft.

[0028] The advantages of this invention are:

[0029] The present invention provides a tooling and testing method for inspecting a fixed guide sleeve device. After the fixed guide sleeve device is installed on the machine tool, the testing tooling is installed at the chuck position of the fixed guide sleeve device and tightened with the guide sleeve nut of the fixed guide sleeve device. Thus, the central axis of the tooling can be regarded as the central axis of the fixed guide sleeve. Then, the coaxiality between the machine tool spindle axis and the tooling central axis is measured. Therefore, the coaxiality between the fixed guide sleeve and the spindle is detected, which can effectively improve the installation accuracy of the fixed guide sleeve and the machining accuracy of the machine tool. Attached Figure Description

[0030] The features and advantages of the invention will become more readily apparent from the following description with reference to the accompanying drawings, which are not drawn to scale and some features are enlarged or reduced to show details of specific parts.

[0031] Figure 1 This is an axial sectional view of the fixed guide sleeve device;

[0032] Figure 2 This is another axial sectional view of the fixed guide sleeve device, showing the guide pin;

[0033] Figure 3 This is a three-dimensional view of the fixed guide sleeve device viewed from one side;

[0034] Figure 4 This is a three-dimensional view of the fixed guide sleeve device viewed from the other side;

[0035] Figure 5 This is a three-dimensional view of the guide sleeve nut in the fixed guide sleeve device;

[0036] Figure 6 This is a perspective view of the tooling for inspecting the fixed guide sleeve device according to the present invention;

[0037] Figure 7 This is an axial sectional view of the tooling for inspecting the fixed guide sleeve device and the assembly structure of the fixed guide sleeve device according to the present invention.

[0038] Figure 8 This is a sectional perspective view of a portion of the structure of the fixed guide sleeve device and the tooling of the present invention when they are installed on a machine tool;

[0039] Figure 9 This is a perspective view of a portion of the structure of the fixed guide sleeve device and the tooling of the present invention when installed on a machine tool.

[0040] In the picture:

[0041] 1-Fixed guide sleeve seat, 13-Lubricating oil passage, 2-Guide sleeve shaft, 21-Lubricating oil passage hole, 3-Clamp, 4-Locking nut, 5-Guide pin, 6-Guide sleeve nut, 61-Stepped part, 62-Lubricating lug, 7-Pressure ring, 8-First screw, 9-Second screw, 10-Third screw, 11-Set screw, 12-Filter connector;

[0042] 13-Column, 14-Adjusting ring, 15-Main spindle, 16-Sub-spindle;

[0043] 100-Tooling, 101-Conical part, 102-First shaft part, 1021-First keyway, 1022-First part, 1023-Second part, 103-Threaded part, 1031-Second keyway, 104-Second shaft part, 105-Third shaft part. Detailed Implementation

[0044] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments thereof. It should be noted that the following detailed description of the present invention is for illustrative purposes only and is not intended to limit the scope of the invention.

[0045] First, the structure of the fixed guide sleeve device is described. (Refer to...) Figures 1 to 4 The fixed guide sleeve device includes a fixed guide sleeve seat 1, a guide sleeve shaft 2, a clamp 3, a locking nut 4, a guide pin 5, a guide sleeve nut 6, a pressure ring 7, a first screw 8, a second screw 9, a third screw 10, a set screw 11, and a filter connector 12.

[0046] The fixed guide sleeve seat 1 serves as the mounting base for the entire device. It features a through axial bore and a threaded hole, as well as a lubrication oil passage 13. The fixed guide sleeve seat 1 has screw holes for connecting the first screw 8 to the adjusting ring 14 on the machine tool column 13. It should be understood that the diameter of the threaded hole in the fixed guide sleeve seat 1 is larger than the diameter of the through hole to facilitate the installation of parts within the fixed guide sleeve seat 1.

[0047] The outer wall of the guide sleeve shaft 2 includes a threaded section and a non-threaded section. The guide sleeve shaft 2 is installed inside the fixed guide sleeve seat 1. Its non-threaded section mates with the smooth hole of the fixed guide sleeve seat 1, and its threaded section mates with the threaded hole of the fixed guide sleeve seat 1 and protrudes outside the fixed guide sleeve seat 1. This threaded section protruding outside the fixed guide sleeve seat 1 is used to install the locking nut 4. The guide sleeve shaft 2 is machined with a through hole, a small hole, and a tapered hole arranged coaxially in sequence. The small hole is used to install the rod part of the chuck 3, and the tapered hole is used to accommodate and fit the tapered part of the chuck 3. A lubricating oil passage hole 21 is radially opened on the side wall where the small hole is located. This lubricating oil passage hole 21 communicates with the lubricating oil passage 13 in the fixed guide sleeve seat 1 to deliver oil to the mating surface of the chuck 3 and the raw material it holds, preventing dry friction between the raw material and the chuck 3. For example, the lubricating oil passage hole on the guide sleeve shaft 2 is a radial hole. The large hole of the guide sleeve shaft 2 is used to mate with the outer periphery of the guide sleeve nut 6.

[0048] The function of the locking nut 4 is to lock the guide sleeve shaft 2 after adjusting the distance from the blade tip to the end face of the guide sleeve, ensuring that the guide sleeve shaft 2 no longer moves, making the guide sleeve shaft 2 and the fixed guide sleeve seat 1 a single unit. The locking nut 4 and the fixed guide sleeve seat 1 are respectively provided with holes for connecting the second screw 9, so that the guide sleeve shaft 2 and the fixed guide sleeve seat 1 are fixed together by the second screw 9 and the locking nut 4, thereby preventing the guide sleeve shaft 2 from moving.

[0049] The guide pin 5 is installed in the radial hole on the guide sleeve shaft 2 and engages with the keyway on the chuck 3 to ensure that the chuck 3 cannot rotate but can only move axially along the guide sleeve shaft 2.

[0050] Combination Figure 5 One end of the guide sleeve nut 6 has an internal thread that engages with the external thread of the collet 3 to tighten the collet 3. The other end of the guide sleeve nut 6 has a stepped portion 61 extending radially outward that abuts against the end face of the guide sleeve shaft 2. The guide sleeve nut 6 also includes a plurality of lugs 62 extending axially outward from the stepped portion 61. The lugs 62 are used to connect tooling to lock and unlock the guide sleeve nut 6. Preferably, four lugs 62 are provided as shown, and the lugs 62 are located on the same circumference.

[0051] The pressure ring 7 is roughly annular and is used to axially press the guide sleeve nut 6 after the clamping force of the chuck 3 is adjusted, especially through the stepped portion of the guide sleeve nut 6, so that the guide sleeve nut 6 and the guide sleeve shaft 2 become a single unit. Holes for connecting the third screw 10 are machined at corresponding positions on the pressure ring 7 and the guide sleeve shaft 2, so as to fix the pressure ring 7 onto the guide sleeve shaft 2 through the third screw 10, thereby achieving the fixation of the guide sleeve nut 6 and the guide sleeve shaft 2. The inner diameter of the pressure ring 7 is larger than the maximum radial dimension of the lug 62 of the guide sleeve nut 6.

[0052] The set screw 11 acts as a plug, connecting to the process hole of the fixed guide sleeve seat 1 for machining the lubrication oil passage, to prevent oil from flowing out.

[0053] The filter connector 12 is installed to the fixed guide sleeve seat 1, and its inner hole is connected to the lubrication oil passage in the fixed guide sleeve seat 1 to connect the filter to provide clean lubricating oil to the fixed guide sleeve device, preventing fine debris and impurities from entering the chuck and wearing the chuck and raw materials.

[0054] The tooling 100 for inspecting a fixed guide sleeve device provided by the present invention will be described next. The tooling 100 of the present invention is specifically designed for the precision inspection of the fixed guide sleeve device after it has been installed on a machine tool. During inspection, the third screw 10 needs to be removed first to remove the pressure ring 7 of the fixed guide sleeve device, then the guide sleeve nut 6 and the collet 3 are removed, and then the inspection tooling 100 is installed so that the tapered surface of the tooling 100 mates with the tapered hole of the guide sleeve shaft 2. At this time, red lead powder is used to check the contact surface; the contact surface is uniform and exceeds 60% of the total area. Then, the guide sleeve nut 6 is fitted onto the tooling 100 and threaded to tighten the tooling 100. After the tapered surface automatically aligns, the central axis of the tooling 100 can be regarded as the central axis of the fixed guide sleeve, and the coaxiality between the axis of the machine tool spindle 15 and the central axis of the tooling is measured.

[0055] Reference Figure 6 and Figure 7 As an exemplary embodiment of the present invention, the tooling 100 for detecting the fixed guide sleeve device is generally rod-shaped. When in use, it is installed at the position of the chuck 3 of the fixed guide sleeve device, and includes a tapered portion 101, a first shaft portion 102, a threaded portion 103 and a second shaft portion 104 in sequence along the axial direction.

[0056] The tapered portion 101 is used to mate with the tapered hole of the guide sleeve shaft 2 of the fixed guide sleeve device, and its shape and size are similar to the tapered portion of the chuck 3.

[0057] The first shaft portion 102 is used to mate with the small hole of the guide sleeve shaft 2, and the diameter of the first shaft portion 102 is not greater than the minor diameter of the tapered portion 101. The first shaft portion 102 is provided with a first keyway 1021 that mates with the guide pin 5 of the fixed guide sleeve device. The first keyway 1021 extends axially and opens to the end face of the first shaft portion 102 near the threaded portion 103, so that the first shaft portion 102 can slide along the guide pin 5 when the tooling 100 is installed.

[0058] The threaded portion 103 is used to engage with the internal thread of the guide sleeve nut 6 of the fixed guide sleeve device. The major diameter of the threaded portion 103 is smaller than the diameter of the small hole of the guide sleeve shaft 2, so that the threaded portion 103 can pass smoothly through the guide sleeve shaft 2 when the tooling 100 is installed. The threaded portion 103 is provided with a second keyway 1031 that mates with the guide pin 5. The second keyway 1031 is located on the same straight line as the first keyway 1021. The second keyway 1031 extends through the entire length of the threaded portion 103, so as to allow the threaded portion 103 to slide past the guide pin 5 and engage with the guide sleeve nut 6.

[0059] The second shaft portion 104 is positioned opposite the spindle 15 of the machine tool on which the fixed guide sleeve device is mounted. The second shaft portion 104 passes through the guide sleeve nut 6 and protrudes outside the guide sleeve nut 6 for the placement and inspection of measuring instruments. The diameter of the second shaft portion 104 is smaller than the minimum inner diameter of the guide sleeve nut 6 to allow the second shaft portion 104 to pass through the minimum inner diameter of the guide sleeve nut 6.

[0060] In some embodiments of the present invention, the first shaft portion 102 includes a first portion 1022 that mates with a small hole in the guide sleeve shaft 2 and a second portion 1023 located between the first portion 1022 and the tapered portion 101. The diameter of the second portion 1023 is smaller than the diameter of the first portion 1022 to leave a gap with the guide sleeve shaft 2, which can accommodate lubricating oil and improve the lubrication effect. A first keyway 1021 is located on the first portion 1022.

[0061] According to the present invention, the tooling 100 may also be provided with a third shaft portion 105 for measuring the coaxiality and straightness of the sub-spindle 16 of the machine tool. The third shaft portion 105 is opposite to the sub-spindle 16 of the machine tool and is exposed outside the fixed guide sleeve device for the placement and testing of measuring instruments.

[0062] In an exemplary embodiment, the tooling 100 is made of 20CrMnTi material with a hardness of HRC55-60. Optionally, the coaxiality tolerance of the tapered portion 101, the first shaft portion 102, and the second shaft portion 104 is 2 μm.

[0063] The detection method for detecting the fixed guide sleeve device using the above-described tooling, provided by the present invention, will now be described. (Refer to...) Figure 8 and Figure 9 The detection method, as an exemplary embodiment of the present invention, includes the following steps:

[0064] Step 1: Measure the coaxiality of the axis of the machine tool sub-spindle 16 and the axis of the machine tool spindle 15, and rotate the sub-spindle 16 to measure the perpendicularity of the end face of the adjusting ring 14 to the axis of the spindle 15. In particular, the measuring instrument is mounted on the sub-spindle 16 and a circle is drawn on the end face of the adjusting ring to measure the geometric accuracy.

[0065] Step 2: Detect the runout of the sub-spindle 16 relative to the inner hole of the adjusting ring 14. In particular, a measuring instrument is mounted on the sub-spindle 16 and used to draw a circle on the inner hole of the adjusting ring 14 to measure the geometric accuracy.

[0066] Step 3: Connect the assembled fixed guide sleeve device without pressure ring 7 to the machine tool's adjusting ring 14, and adjust the distance between the machine tool tool and the fixed guide sleeve device. The fixed guide sleeve seat 1 of the fixed guide sleeve device is connected to the machine tool's adjusting ring 14 by screws 8. During the adjustment process, the guide sleeve nut 6 appropriately tightens the collet 3, adjusts the guide sleeve shaft 2, and measures the distance from the tool tip to the end face of the guide sleeve device. After the distance is appropriate, use the locking nut 4 to lock the guide sleeve shaft 2.

[0067] Step 4: After removing the guide sleeve nut 6 and the chuck 3, install the tooling 100 on the fixed guide sleeve device so that the tapered part 101 fits with the tapered hole of the guide sleeve shaft 2, and screw the guide sleeve nut 6 into the threaded part 103 to tighten the tooling 100.

[0068] Step 5: Check the parallelism between the axis of the main spindle 15 and the axis of the second shaft 104. Specifically, install a measuring instrument on the main spindle 15 and draw a straight line on the cylindrical surface of the second shaft 104 to measure the geometric accuracy. The deviation within the 60mm long measurement range should not exceed 0.005mm. If the parallelism exceeds this preset value, the end face of the column 13 used to install the adjusting ring 14 can be scraped until the parallelism meets the requirements.

[0069] Step 6: Measure the coaxiality between the axis of the main spindle 15 and the axis of the second shaft 104. Specifically, install a measuring instrument on the main spindle 15 and draw a circle on the cylindrical surface of the second shaft 104 to measure the geometric accuracy. The measurement can be performed on the distal cylindrical surface and the proximal cylindrical surface separately. The coaxiality requirement is no more than 2µm in all directions. When the coaxiality exceeds this preset value, the screw used to connect the adjusting ring 14 to the column 13 can be adjusted until the coaxiality meets the requirements.

[0070] In a specific embodiment of the present invention, the detection method for detecting the fixed guide sleeve device using tooling 100 further includes the following steps:

[0071] Step 7: Check the parallelism between the axis of the secondary spindle 16 and the axis of the third shaft 105. A measuring instrument can be installed on the secondary spindle 16, and a straight line can be drawn on the cylindrical surface of the third shaft 105 to confirm the geometric accuracy.

[0072] Step 8: Measure the coaxiality between the axis of the secondary spindle 16 and the axis of the third shaft 105. A measuring instrument can be installed on the secondary spindle 16 and a circle can be drawn on the cylindrical surface of the third shaft 105 to confirm the geometric accuracy.

[0073] Steps 7 and 8 supplement the installation accuracy of the fixed guide sleeve. Their purpose is to check the coaxiality between the sub-spindle 16 and the fixed guide sleeve, thereby improving the machining accuracy of the parts. For example, when cutting parts, the sub-spindle 16 clamps the material at the fixed guide sleeve, or parts with high coaxiality requirements are machined on both the spindle and sub-spindle sides. The coaxiality requirement between the sub-spindle 16 and the fixed guide sleeve can be slightly lower than that between the spindle 15 and the fixed guide sleeve.

[0074] Furthermore, those skilled in the art will understand that after the above-mentioned testing steps are completed, before processing, the testing fixture 100 and guide sleeve nut 6 need to be removed, the lubrication oil circuit needs to be connected, and the chuck 3 and guide sleeve nut 6 need to be installed. Then, the clamping force of the chuck is adjusted and the pressure ring 7 is installed. After that, the parts can be processed.

[0075] As described above, the tooling and testing method for testing the fixed guide sleeve device of the present invention, after the fixed guide sleeve device is installed on the machine tool, the testing tooling is installed at the chuck position of the fixed guide sleeve device and the tooling is tightened by the guide sleeve nut of the fixed guide sleeve device. Thus, the central axis of the tooling can be regarded as the central axis of the fixed guide sleeve. Then, the coaxiality between the machine tool spindle axis and the tooling central axis is measured. Therefore, the coaxiality of the fixed guide sleeve and the spindle is tested, which can effectively improve the installation accuracy of the fixed guide sleeve and improve the machining accuracy of the machine tool.

[0076] The features mentioned and / or shown in the foregoing description of exemplary embodiments of the present invention may be combined in the same or similar manner with one or more other embodiments, combined with features in other embodiments, or substituted for corresponding features in other embodiments. Such combinations or substitutions should also be considered as including within the scope of protection of the present invention.

Claims

1. A tooling for inspecting a fixed guide sleeve device, characterized in that: The tooling is rod-shaped and is installed at the chuck position of the fixed guide sleeve device during use. It includes a tapered portion, a first shaft portion, a threaded portion, and a second shaft portion in sequence along the axial direction. The tapered portion is used to mate with the tapered hole of the guide sleeve shaft of the fixed guide sleeve device; The first shaft portion is used to mate with the small hole of the guide sleeve shaft. The diameter of the first shaft portion is not greater than the minor diameter of the tapered portion. The first shaft portion is provided with a first keyway that mates with the guide pin of the fixed guide sleeve device. The threaded portion is used to engage with the internal thread of the guide sleeve nut of the fixed guide sleeve device. The major diameter of the threaded portion is smaller than the diameter of the small hole of the guide sleeve shaft. The threaded portion is provided with a second keyway that mates with the guide pin. The second shaft portion is used to be opposite to the spindle of the machine tool on which the fixed guide sleeve device is installed, and the second shaft portion passes through the guide sleeve nut and protrudes outside the guide sleeve nut.

2. The tooling for inspecting the fixed guide sleeve device according to claim 1, characterized in that: The first shaft portion includes a first part that mates with a small hole in the guide sleeve shaft and a second part located between the first part and the tapered portion. The diameter of the second part is smaller than the diameter of the first part so as to leave a gap with the guide sleeve shaft. The first keyway is located on the first part.

3. The tooling for inspecting a fixed guide sleeve device according to claim 1 or 2, characterized in that: It also includes a third shaft portion, which is used to be opposite to the secondary spindle of the machine tool, and the third shaft portion is exposed outside the fixed guide sleeve device.

4. The tooling for inspecting the fixed guide sleeve device according to claim 3, characterized in that: The tooling is made of 20CrMnTi.

5. The tooling for inspecting the fixed guide sleeve device according to claim 3, characterized in that: The coaxiality tolerance of the tapered portion, the first shaft portion, and the second shaft portion is 2 μm.

6. The tooling for inspecting the fixed guide sleeve device according to claim 3, characterized in that: The tooling has a hardness of HRC55-60.

7. A method for inspecting a fixed guide sleeve device using a tooling for inspecting a fixed guide sleeve device according to any one of claims 3 to 6, characterized in that, Includes the following steps: Step 1: Measure the coaxiality between the axis of the machine tool sub-spindle and the axis of the machine tool main spindle, and rotate the sub-spindle to measure the perpendicularity between the end face of the adjusting ring and the axis of the main spindle; Step 2: Detect the runout of the sub-spindle relative to the inner hole of the adjusting ring; Step 3: Connect the assembled fixed guide sleeve device without the pressure ring to the adjusting ring of the machine tool, and adjust the distance between the machine tool tool and the fixed guide sleeve device; Step 4: After removing the guide sleeve nut and the chuck, install the tooling on the fixed guide sleeve device so that the tapered part matches the tapered hole of the guide sleeve shaft, and screw the guide sleeve nut into the threaded part to tighten the tooling. Step 5: Check the parallelism between the main spindle axis and the axis of the second shaft. Step 6: Measure the coaxiality between the main spindle axis and the axis of the second shaft.

8. The detection method for detecting a fixed guide sleeve device using a tooling for detecting a fixed guide sleeve device according to claim 7, characterized in that, It also includes the following steps: Step 7: Detect the parallelism between the axis of the secondary spindle and the axis of the third shaft. Step 8: Measure the coaxiality between the axis of the secondary spindle and the axis of the third shaft.

Images