Device for detecting roughness of inner surface of motor rotor hole

Abstract

The invention discloses a device for detecting the roughness of the inner surface of a motor rotor hole, and relates to the technical field of roughness detection. The device comprises a shading shell, an adjusting electric cylinder, a leveling plate, a supporting roller and a detection shell, wherein a laser light path system and a contact type detection probe are arranged in the detection shell; after a laser generator is reshaped through a concave lens and a convex lens, light is divided into a calibration light path and a detection light path through a beam splitter, one path irradiates the surface of the inner hole of the rotor through a reflector and is received by a detection light sensor, the other path irradiates a calibration material and is detected by a calibration light sensor, and real-time calibration and roughness judgment are achieved. Meanwhile, a sapphire ball head probe is arranged and used for contact type auxiliary detection, and it is ensured that the complex surface can still be accurately measured. The device has the functions of automatic leveling, dual-mode detection and accurate calibration, and can efficiently and reliably complete the detection of the roughness of the inner surface of the motor rotor hole.

Description

Technical Field

[0001] This invention relates to the field of roughness detection technology, specifically to a device for detecting the surface roughness of the inner surface of a motor rotor hole. Background Technology

[0002] Existing methods for detecting the surface roughness of motor rotor bores mostly rely on contact measurements. This involves sliding a hard stylus or ball-head probe across the rotor's inner bore surface to measure minute displacements and then calculating the roughness. These methods suffer from low measurement efficiency, rapid probe wear, potential damage to the bore wall, and poor adaptability to complex geometric surfaces. This is particularly true in the detection of motor rotors. While laser measuring instruments are used for surface roughness detection, they mostly employ single-beam direct illumination, resulting in limited measurement results. The lack of calibration benchmarks leads to incomparable optical measurement results from different equipment or environments. Furthermore, the lack of multi-modal detection methods results in a limited range of detection approaches. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides the following technical solution: a device for detecting the surface roughness of the inner surface of a motor rotor hole, comprising a light-shielding shell, a light-shielding cover plate movably mounted on the light-shielding shell, four adjusting electric cylinders fixedly mounted on the bottom surface of the inner wall of the light-shielding shell, adjusting plate plates movably connected to the ends of the telescopic rods of the four adjusting electric cylinders, and two symmetrically and parallelly arranged support rollers rotatably mounted on the adjusting plate plates; a control electric cylinder fixedly mounted on the light-shielding shell, the ends of the telescopic rods of the control electric cylinders extending into the interior of the light-shielding shell; and a detection housing fixedly mounted at the ends of the telescopic rods of the control electric cylinders, the detection housing having light medium perforations and detection probe perforations, wherein the light medium perforations and detection probe perforations are used to accommodate a detection medium for detecting the surface roughness of the inner surface of the motor rotor hole; the detection medium includes a light source emitted by a laser generator and a detection probe capable of contacting the inner surface of the motor rotor hole, the end of the detection probe in contact with the inner surface of the motor rotor hole being a sapphire ball head.

[0004] Preferably, the end of each adjusting electric cylinder telescopic rod is connected to the lower surface of the adjusting plate with a ball joint, and the adjusting electric cylinder telescopic cylinder is fixedly fitted with the light-shielding shell; and the four adjusting electric cylinders are distributed in a rectangular array at the four corners of the adjusting plate; two support drive motors for driving the two support rollers to rotate are also fixedly installed on the adjusting plate.

[0005] Preferably, a shaping plate and an axial beam are fixedly installed on the inner wall of the detection housing, wherein the shaping plate and the axial beam are perpendicular to each other, and the axial beam is arranged along the axial direction of the detection housing. A light source housing is fixedly installed on the shaping plate, wherein the laser generator is fixedly installed inside the light source housing. A concave lens bracket is also fixedly installed on the inner wall of the light source housing, and a concave lens is fixedly installed on the concave lens bracket. Three lens guide slides are fixedly installed between the concave lens bracket and the opposite surface of the shaping plate. A convex lens adjusting screw is also rotatably installed between the concave lens bracket and the opposite surface of the shaping plate, wherein the convex lens adjusting screw is fixedly installed on the output shaft of the convex lens adjusting motor, and the convex lens adjusting motor is fixedly installed on the shaping plate.

[0006] Preferably, a convex lens bracket is slidably mounted on the three lens guide slides, and the convex lens bracket is threadedly driven with the convex lens adjusting screw. The axes of the three lens guide slides and the convex lens adjusting screw are arranged parallel to each other. A convex lens is fixedly mounted on the convex lens bracket. A concave lens is disposed between the laser generator and the convex lens. A rectangular light-transmitting hole is opened on the shaping light plate, which is used to shape the light emitted from the convex lens.

[0007] Preferably, a lens assembly bracket is fixedly installed on the axial crossbeam, and an adjustment slide rod is fixedly installed between the lens assembly bracket and the shaping plate. An adjustment screw rod, which is rotatably installed between the lens assembly bracket and the shaping plate and is arranged parallel to the axial direction of the adjustment slide rod, is also fixedly installed on the output shaft of the adjustment motor. The adjustment motor is fixedly installed on the shaping plate. A detection light sensor adjustment platform is slidably sleeved on the adjustment slide rod. The detection light sensor adjustment platform is threadedly driven with the adjustment screw rod, and a detection light sensor is fixedly installed on the detection light sensor adjustment platform.

[0008] Preferably, a beam splitter and a beam reflector are fixedly installed on the inner side of the lens assembly support. The beam splitter is used to split the light passing through the rectangular light-transmitting hole into two mutually perpendicular beams. One beam is perpendicular to the original light and shines on the beam reflector, while the other beam passes through the beam splitter and shines on the calibration material.

[0009] Preferably, a calibration light shield is also fixedly installed on the lens assembly support. A calibration light sensor is fixedly installed inside the calibration light shield. The calibration light shield has a rectangular light-transmitting hole of the same shape and size as the shaping light plate, which allows light to pass through the calibration light shield and illuminate the calibration light sensor. The light passing through the light beam splitter illuminates the calibration material at a 45-degree angle, and the light reflected by the light reflecting lens illuminates the inner surface of the hole of the motor rotor at a 45-degree angle.

[0010] Preferably, the calibration material is fixedly mounted on the calibration material fixing plate, which is magnetically fixedly mounted on the magnetic calibration plate mounting frame. A cover is fixedly mounted on the light-shielding housing in a way that is easy to disassemble. After the cover is opened, it is easy to replace the calibration material fixing plate and the calibration material on the cover. The calibration material and the calibration material fixing plate are integrated. The magnetic calibration plate mounting frame is slidably mounted on four parallel guide rods. The four guide rods are fixedly mounted between the calibration light-shielding cover and the axial crossbeam, and the axes of the four guide rods are perpendicular to the lower surface of the calibration light-shielding cover and the upper surface of the axial crossbeam.

[0011] Preferably, at least one of the guide slides is fitted with a tension spring, the two ends of which are fixedly engaged with the magnetic calibration plate mounting frame and the axial crossbeam. Two symmetrically arranged electromagnets are fixedly installed on the four guide slides, and the electromagnets are magnetically engaged with the magnetic calibration plate mounting frame.

[0012] Preferably, the detection probe is fixedly installed on the detection probe bracket in a way that facilitates disassembly. Two parallel probe bracket motion guide rods are fixedly installed on the detection probe bracket. The two probe bracket motion guide rods are axially parallel to the guide slide rod, and the two probe bracket motion guide rods are slidably installed on the axial crossbeam. The two probe bracket motion guide rods are fixedly engaged with the magnetic calibration plate mounting frame.

[0013] Compared with the prior art, the present invention has the following advantages: (1) The surface roughness detection device of the motor rotor hole of the present invention adopts a combination of laser generator, concave and convex lens group and beam splitting reflection system, which can realize non-contact detection of the surface of the motor rotor hole. By the correspondence between the intensity of reflected light and surface roughness of the laser measuring instrument, the surface condition can be quickly judged, effectively avoiding the damage or additional wear caused to the hole wall by the traditional contact method, and improving the reliability of detection and the integrity of the tested part; (2) The present invention realizes the rapid leveling of the motor rotor under different diameters and different installation positions by adjusting the electric cylinder, adjusting plate and support roller. Compared with the traditional method that requires multiple manual calibrations, the present invention can accurately adjust the consistency between the rotor axis and the detection optical axis under automated conditions, greatly improving the detection efficiency, reducing the labor intensity of operators, and ensuring the repeatability and comparability of the detection results; (3) The present invention introduces calibration materials and calibration optical paths into the detection system. Before detection, the light intensity benchmark can be compared by calibration blocks with the same material and design roughness as the motor rotor. This design not only eliminates interference from environmental factors and light source fluctuations, but also makes the data obtained by the light sensor more objective and reliable. With the help of the calibration mechanism, the actual roughness difference inside the rotor hole can be accurately reflected, avoiding the problem of insufficient calibration in the traditional single sensor detection method; (4) This invention integrates two modes: contact detection probe and non-contact laser detection. The detection probe adopts a sapphire ball head, which has high hardness and wear resistance, and can be used as a substitute in special working conditions or when optical detection is difficult, to achieve supplementary measurement. This dual-mode design enables the equipment to maintain the continuity and comprehensiveness of detection when facing complex hole wall surfaces, solving the problem of the strong limitation of single detection method; (5) This invention uses a combination of electromagnet and tension spring to realize the linkage movement of calibration plate and probe support. When the probe moves with the floating of hole wall roughness, the calibration material shifts synchronously, and the optical system can obtain amplitude and frequency data through light intensity changes. This method greatly improves the richness of detection information, and can not only measure the average roughness, but also obtain the hole wall cylindricity deviation and axial floating characteristics. Compared with traditional methods that can only obtain single-point values, this invention can achieve multi-dimensional parameter acquisition, providing more scientific data support for subsequent process correction and quality control. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the light-shielding outer shell structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the light-shielding shell of the present invention; Figure 3 This is a diagram showing the working position of the detection housing in this invention; Figure 4 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 5For the present invention Figure 4 Schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the lens assembly support structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point B; Figure 8 For the present invention Figure 6 Schematic diagram of the structure at point C; Figure 9 This is a schematic diagram of the calibration material fixing plate structure of the present invention; Figure 10 This is a schematic diagram of the structure of the calibration shield of the present invention.

[0015] In the diagram: 101-Light-shielding housing; 102-Light-shielding cover; 103-Control cylinder; 104-Adjusting cylinder; 105-Adjusting plate; 106-Support roller; 107-Support drive motor; 108-Detection housing; 109-Light medium perforation; 110-Axial beam; 111-Detection probe perforation; 112-Detection probe; 113-Detection probe bracket; 114-Probe bracket movement guide rod; 115-Magnetic calibration plate mounting frame; 116-Tension spring; 117-Mirror assembly bracket; 118-Calibration light-shielding cover; 119-Clip cover; 120-Guide slide rod; 121-Electromagnet; 12 2-Calibration light sensor; 123-Shaping light plate; 124-Light source housing; 125-Adjustment screw; 126-Adjustment slide bar; 127-Adjustment motor; 128-Detection light sensor adjustment stage; 129-Detection light sensor; 130-Laser generator; 131-Concave lens bracket; 132-Concave lens; 133-Convex lens bracket; 134-Lens guide slide bar; 135-Convex lens adjustment motor; 136-Convex lens adjustment screw; 137-Convex lens; 138-Calibration material; 139-Calibration material fixing plate; 140-Light reflecting lens; 141-Light beam splitter lens. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-10 The technical solution of the present invention will be further illustrated through specific embodiments.

[0017] This invention provides a device for detecting the surface roughness of the inner surface of a motor rotor hole, comprising a light-shielding housing 101, a light-shielding cover plate 102 movably mounted on the light-shielding housing 101, four adjusting electric cylinders 104 fixedly mounted on the bottom surface of the inner wall of the light-shielding housing 101, adjusting plate 105 movably connected to the ends of the telescopic rods of the four adjusting electric cylinders 104, and two symmetrically and parallelly arranged support rollers 106 rotatably mounted on the adjusting plate 105; a control electric cylinder 103 fixedly mounted on the light-shielding housing 101, the end of the telescopic rod of the control electric cylinder 103 extending to the light-shielding housing 101. Inside 01; and the end of the telescopic rod of the control cylinder 103 is fixedly installed with a detection housing 108. The detection housing 108 has a light medium through hole 109 and a detection probe through hole 111, wherein the light medium through hole 109 and the detection probe through hole 111 are used to accommodate the detection medium for detecting the surface roughness of the inner surface of the motor rotor hole; the detection medium includes a light source emitted by the laser generator 130 and a detection probe 112 that can contact the inner surface of the motor rotor hole. The end of the detection probe 112 that contacts the inner surface of the motor rotor hole is a sapphire ball head. The end of the telescopic rod of each adjusting cylinder 104 is connected to the lower surface of the adjusting plate 105 with a ball joint. The telescopic cylinder of the adjusting cylinder 104 is fixedly fitted with the light shielding shell 101; and the four adjusting cylinders 104 are distributed in a rectangular array at the four corners of the adjusting plate 105; two support drive motors 107, which are used to drive the rotation of the two support rollers 106, are also fixedly installed on the adjusting plate 105. A shaping plate 123 and an axial beam 110 are fixedly installed on the inner wall of the detection housing 108. The shaping plate 123 and the axial beam 110 are perpendicular to each other, and the axial beam 110 is arranged along the axial direction of the detection housing 108. A light source housing 124 is fixedly installed on the shaping plate 123, and a laser generator 130 is fixedly installed inside the light source housing 124. A concave lens bracket 131 is also fixedly installed on the inner wall of the light source housing 124. A concave lens 132 is fixedly installed on the concave lens bracket 131. Three lens guide slide rods 134 are fixedly installed between the concave lens bracket 131 and the opposite surface of the shaping plate 123. A convex lens adjusting screw 136 is also rotatably installed between the concave lens bracket 131 and the opposite surface of the shaping plate 123. The convex lens adjusting screw 136 is fixedly installed on the output shaft of the convex lens adjusting motor 135, and the convex lens adjusting motor 135 is fixedly installed on the shaping plate 123. A convex lens bracket 133 is slidably mounted on three lens guide slides 134. The convex lens bracket 133 is threadedly engaged with the convex lens adjusting screw 136. The axes of the three lens guide slides 134 and the convex lens adjusting screw 136 are arranged parallel to each other. A convex lens 137 is fixedly mounted on the convex lens bracket 133. A concave lens 132 is disposed between the laser generator 130 and the convex lens 137. A rectangular light-transmitting hole is provided on the shaping plate 123. The rectangular light-transmitting hole is used to shape the light emitted from the convex lens 137.

[0018] A lens assembly bracket 117 is fixedly installed on the axial crossbeam 110. An adjustment slide rod 126 is fixedly installed between the lens assembly bracket 117 and the shaping plate 123. An adjustment screw 125, which is axially parallel to the adjustment slide rod 126, is also rotatably installed between the lens assembly bracket 117 and the shaping plate 123. The adjustment screw 125 is fixedly installed on the output shaft of the adjustment motor 127, which is fixedly installed on the shaping plate 123. A detection light sensor adjustment platform 128 is slidably sleeved on the adjustment slide rod 126. The detection light sensor adjustment platform 128 is threadedly driven with the adjustment screw 125. A detection light sensor 129 is fixedly installed on the detection light sensor adjustment platform 128. A beam splitter 141 and a beam reflector 140 are fixedly mounted on the inner side of the mirror assembly bracket 117. The beam splitter 141 splits the light passing through the rectangular light-transmitting hole into two mutually perpendicular beams. One beam shines perpendicularly onto the beam reflector 140, while the other beam passes through the beam splitter 141 and shines onto the calibration material 138. A calibration light shield 118 is also fixedly mounted on the mirror assembly bracket 117. A calibration light sensor 122 is fixedly mounted inside the calibration light shield 118. The calibration light shield 118 has a rectangular light-transmitting hole of the same shape and size as that on the shaping light plate 123, allowing light to pass through the calibration light shield 118 and shine onto the calibration light sensor 122. The light passing through the beam splitter 141 shines onto the calibration material 138 at a 45-degree angle, and the light reflected by the beam reflector 140 shines onto the inner surface of the hole of the motor rotor at a 45-degree angle. The calibration material 138 is fixedly installed on the calibration material fixing plate 139, which is magnetically fixed on the magnetic calibration plate mounting frame 115. The light-shielding housing 101 is fixedly installed with a cover 119 in a way that is easy to disassemble. After opening the cover 119, it is easy to replace the calibration material fixing plate 139 and the calibration material 138 on the cover 119. The calibration material 138 and the calibration material fixing plate 139 are integrated. The magnetic calibration plate mounting frame 115 is slidably installed on four parallel guide rods 120. The four guide rods 120 are fixedly installed between the calibration light shield 118 and the axial beam 110, and the axis of the four guide rods 120 is perpendicular to the lower surface of the calibration light shield 118 and the upper surface of the axial beam 110. At least one of the guide slide rods 120 is surrounded by a tension spring 116, the two ends of which are fixedly engaged with the magnetic calibration plate mounting frame 115 and the axial beam 110. Two symmetrically arranged electromagnets 121 are fixedly installed on the four guide slide rods 120, and the electromagnets 121 are magnetically engaged with the magnetic calibration plate mounting frame 115.The detection probe 112 is fixedly installed on the detection probe bracket 113 in a way that is easy to disassemble. Two parallel probe bracket motion guide rods 114 are fixedly installed on the detection probe bracket 113. The two probe bracket motion guide rods 114 are axially parallel to the guide slide rod 120, and the two probe bracket motion guide rods 114 are slidably installed on the axial crossbeam 110. The two probe bracket motion guide rods 114 are fixedly engaged with the magnetic calibration plate mounting frame 115.

[0019] The working principle of the device for detecting the surface roughness of the inner surface of a motor rotor hole disclosed in this invention is as follows: The motor rotor is placed on two support rollers 106, and then the telescopic rods of four adjusting electric cylinders 104 are controlled to make the axis of the motor rotor overlap with the axis of the telescopic rod of the control electric cylinder 103 as much as possible. Two support drive motors 107 are controlled, which drive the support rollers 106 to rotate, and the support rollers 106 drive the motor rotor to rotate. The control electric cylinders 103 drive the detection housing 108 to move along the axial direction of the motor rotor, which in turn drives the detection medium to move, thus detecting the surface roughness at different positions of the inner hole of the motor rotor. Finally, the light-shielding cover 102 needs to be closed on the light-shielding outer shell 101 to make the interior of the light-shielding outer shell 101 opaque.

[0020] When the laser generator 130 is activated, it emits light. The light first passes through the concave lens 132, and then through the convex lens 137. By controlling the distance between the concave lens 132 and the convex lens 137, the angle (irradiation range) of the light passing through the convex lens 137 can be controlled, thus changing the light intensity within the same angle (the smaller the range, the greater the intensity). After passing through the rectangular light-transmitting hole on the shaping plate 123, the light shines on the beam-splitting lens 141, which then splits it into two beams. One beam is reflected at a 45-degree angle by the light-reflecting lens 140 onto the inner surface of the motor rotor, and then reflected by the inner surface of the motor rotor onto the detection light transmitter. Regarding sensor 129, it should be noted that when the diameter of the motor rotor changes, not only is it necessary to adjust the movement of the telescopic rods of the four adjusting electric cylinders 104, but also to adjust the position of the detection light sensor 129 on the adjusting slide rod 126 (because the projection position of the light reflected by the light reflecting mirror 140 onto the inner surface of the motor rotor changes, thus changing the reflection position). Specifically, the adjusting motor 127 is controlled, and its output shaft drives the adjusting screw 125 to rotate. The adjusting screw 125 drives the detection light sensor 129 on the detection light sensor adjusting platform 128 to slide axially along the adjusting slide rod 126 to receive the light reflected from the inner surface of the motor rotor. The rougher the inner surface of the motor rotor, the lower the intensity of the reflected light; the smoother the inner surface, the higher the intensity of the reflected light. Therefore, the light intensity received by the detection light sensor 129 varies depending on the roughness of the surface. Simultaneously, before testing, calibration material 138 of the same material as the motor rotor needs to be selected for calibration (the surface of calibration material 138 has the same curvature and designed surface roughness as the inner hole of the motor rotor); the light passing through the beam splitter 141 will illuminate the calibration material 138, and its illumination angle is the same as the angle illuminating the surface of the inner hole of the motor rotor, and then it is reflected by the calibration material 138 to the calibration light sensor 122 (through the rectangular light-transmitting hole of the calibration light shield 118). The light intensity detected by the calibration light sensor 122 is used as a benchmark, and the data detected by the calibration light sensor 122 is compared with the data obtained by the detection light sensor 129 to determine the roughness difference of the inner hole surface of the motor rotor (if the difference is too large, it does not meet the standard).

[0021] In addition, the electromagnet 121 can be de-energized (the former requires both electromagnets 121 to be constantly energized, that is, the magnetic calibration plate mounting frame 115 cannot move on the guide slide rod 120). At this time, the calibration material 138 and the calibration material fixing plate 139 on the magnetic calibration plate mounting frame 115 will slide on the guide slide rod 120, and the detection probe 112 will be installed on the detection probe bracket 113 (it was not installed before, and it does not need to be installed if it is not used). This will make the sapphire ball head of the detection probe 112 contact the inner hole surface of the motor rotor. By controlling the extension and retraction of the telescopic rod of the control cylinder 103, the detection probe 112 can be driven to slide along the axial direction of the inner hole of the motor rotor to measure the surface roughness fluctuation of the inner hole of the motor rotor in the same axial straight line, that is, to measure whether the inner hole of the motor rotor is an ideal cylindrical shape or other required shape in the axial direction. Specifically, when the inner hole of the motor rotor changes, the tension spring 116 keeps the detection probe 112 in contact with the inner hole of the motor rotor. Therefore, the movement of the detection probe 112 directly drives the calibration material 138 and the calibration material fixing plate 139 on the magnetic calibration plate mounting frame 115 to move (the calibration material 138, calibration material fixing plate 139, magnetic calibration plate mounting frame 115, probe bracket movement guide rod 114, detection probe bracket 113, and detection probe 112 move synchronously as a whole). Due to the movement of the calibration material 138, it will lead to... The light reflected by the calibration material 138 changes. At this time, the frequency of the light change is detected by the calibration light sensor 122 to measure the frequency of the floating of the inner hole surface of the motor rotor. By measuring the amount of light change by the calibration light sensor 122, the amplitude of the floating of the inner hole surface of the motor rotor can be measured. The greater the amount of movement of the detection probe 112, the greater the amount of movement of the calibration material 138. Finally, the greater the offset of the light reflected by the calibration material 138 from the rectangular light-transmitting hole on the calibration light shield 118, the smaller the light intensity received by the calibration light sensor 122.

Claims

1. A device for detecting the surface roughness of the inner surface of a motor rotor hole, characterized in that: The device includes a light-shielding shell (101), a light-shielding cover plate (102) is movably installed on the light-shielding shell (101), and four adjusting electric cylinders (104) are fixedly installed on the bottom surface of the inner wall of the light-shielding shell (101). The ends of the telescopic rods of the four adjusting electric cylinders (104) are movably connected to an adjusting plate (105), and two symmetrical and parallel support rollers (106) are rotatably installed on the adjusting plate (105). A control cylinder (103) is fixedly installed on the light-shielding shell (101), and the end of the telescopic rod of the control cylinder (103) extends into the interior of the light-shielding shell (101); and a detection shell (108) is fixedly installed on the end of the telescopic rod of the control cylinder (103), and a light medium through hole (109) and a detection probe through hole (111) are provided on the detection shell (108), wherein the light medium through hole (109) and the detection probe through hole (111) are used to accommodate the detection medium for detecting the surface roughness of the inner surface of the rotor hole of the detection motor; The detection medium includes a light source emitted by a laser generator (130) and a detection probe (112) that can contact the inner surface of the motor rotor hole. The end of the detection probe (112) that contacts the inner surface of the motor rotor hole is a sapphire ball head.

2. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 1, characterized in that: The end of the telescopic rod of each adjusting electric cylinder (104) is connected to the ball joint on the lower surface of the adjusting plate (105), and the telescopic cylinder of the adjusting electric cylinder (104) is fixedly fitted with the light-shielding shell (101); and the four adjusting electric cylinders (104) are distributed in a rectangular array at the four corners of the adjusting plate (105); and two support drive motors (107) are also fixedly installed on the adjusting plate (105) for driving the rotation of the two support rollers (106).

3. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 2, characterized in that: A shaping light plate (123) and an axial beam (110) are fixedly installed on the inner wall of the detection housing (108). The shaping light plate (123) and the axial beam (110) are perpendicular to each other. The axial beam (110) is arranged along the axial direction of the detection housing (108). A light source housing (124) is fixedly installed on the shaping light plate (123). A laser generator (130) is fixedly installed inside the light source housing (124). A concave lens bracket (131) is also fixedly installed on the inner wall of the light source housing (124). 31) A concave lens (132) is fixedly installed on the plate. Three lens guide slides (134) are fixedly installed between the concave lens bracket (131) and the opposite surface of the shaping plate (123). A convex lens adjusting screw (136) is also rotatably installed between the concave lens bracket (131) and the opposite surface of the shaping plate (123). The convex lens adjusting screw (136) is fixedly installed on the output shaft of the convex lens adjusting motor (135), and the convex lens adjusting motor (135) is fixedly installed on the shaping plate (123).

4. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 3, characterized in that: A convex lens bracket (133) is slidably mounted on three lens guide slides (134). The convex lens bracket (133) is threadedly driven with the convex lens adjusting screw (136). The three lens guide slides (134) and one convex lens adjusting screw (136) are arranged parallel to each other in the axis. A convex lens (137) is fixedly mounted on the convex lens bracket (133). A concave lens (132) is arranged between the laser generator (130) and the convex lens (137). A rectangular light-transmitting hole is opened on the shaping plate (123). The rectangular light-transmitting hole is used to shape the light emitted from the convex lens (137).

5. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 4, characterized in that: A mirror assembly bracket (117) is fixedly installed on the axial crossbeam (110). An adjustment slide rod (126) is fixedly installed between the mirror assembly bracket (117) and the shaping plate (123). An adjustment screw rod (125) is also rotatably installed between the mirror assembly bracket (117) and the shaping plate (123) and is arranged parallel to the axial direction of the adjustment slide rod (126). The adjustment screw rod (125) is fixedly installed on the output shaft of the adjustment motor (127). The adjustment motor (127) is fixedly installed on the shaping plate (123). A detection light sensor adjustment platform (128) is slidably sleeved on the adjustment slide rod (126). The detection light sensor adjustment platform (128) is threadedly driven with the adjustment screw rod (125). A detection light sensor (129) is fixedly installed on the detection light sensor adjustment platform (128).

6. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 5, characterized in that: The inner side of the lens assembly bracket (117) is fixedly installed with a beam splitter (141) and a beam reflector (140). The beam splitter (141) is used to split the light passing through the rectangular light-transmitting hole into two beams of light that are perpendicular to each other. One beam is perpendicular to the original light and shines on the beam reflector (140), while the other beam passes through the beam splitter (141) and shines on the calibration material (138).

7. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 6, characterized in that: A calibration light shield (118) is also fixedly installed on the lens assembly bracket (117). A calibration light sensor (122) is fixedly installed inside the calibration light shield (118). A rectangular light-transmitting hole with the same shape and size as the shaping light plate (123) is opened on the calibration light shield (118) to allow light to pass through the calibration light shield (118) and illuminate the calibration light sensor (122).

8. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 7, characterized in that: The calibration material (138) is fixedly installed on the calibration material fixing plate (139). The calibration material fixing plate (139) is magnetically fixed on the magnetic calibration plate mounting frame (115). The cover (119) is fixedly installed on the light-shielding shell (101) in a way that is easy to disassemble. The magnetic calibration plate mounting frame (115) is slidably installed on four parallel guide rods (120). The four guide rods (120) are fixedly installed between the calibration light shield (118) and the axial beam (110). The axes of the four guide rods (120) are perpendicular to the lower surface of the calibration light shield (118) and the upper surface of the axial beam (110).

9. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 8, characterized in that: At least one of the guide slides (120) is surrounded by a tension spring (116), and the two ends of the tension spring (116) are fixedly engaged with the magnetic calibration plate mounting frame (115) and the axial beam (110). Two symmetrically arranged electromagnets (121) are fixedly installed on the four guide slides (120), and the electromagnets (121) are magnetically engaged with the magnetic calibration plate mounting frame (115).

10. The device for detecting the surface roughness of the inner surface of a motor rotor hole according to claim 9, characterized in that: The detection probe (112) is fixedly installed on the detection probe bracket (113) in a way that is easy to disassemble. Two parallel probe bracket motion guide rods (114) are fixedly installed on the detection probe bracket (113). The two probe bracket motion guide rods (114) are axially parallel to the guide slide rod (120), and the two probe bracket motion guide rods (114) are slidably installed on the axial crossbeam (110). The two probe bracket motion guide rods (114) are fixedly engaged with the magnetic calibration plate mounting frame (115).

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