Optical component appearance detection device with good fixing effect

Abstract

The invention discloses an optical component appearance detection device with a good fixing effect, and relates to the technical field of optical detection.The optical component appearance detection device comprises a detection cabinet, a conveying mechanism, a detection mechanism and a turnover mechanism, the turnover mechanism comprises a first telescopic rod, a movable support, a rotating frame and a clamping assembly, and the first telescopic rod is arranged in the detection cabinet; the movable support is connected with the first telescopic rod, the rotating frames are connected with the movable support, the clamping assemblies are connected with the rotating frames in a sliding mode, the two rotating frames and the two clamping assemblies are symmetrically arranged on the movable support, each clamping assembly comprises two second telescopic rods and two clamping plates, the second telescopic rods are connected with the rotating frames in a sliding mode, and the clamping plates are arranged on the second telescopic rods. The clamping plate is hinged to the telescopic end of the second telescopic rod. Through telescopic adjustment of the second telescopic rod and sliding fit of the second telescopic rod and the rotating frame, the distance between the two clamping plates can be flexibly adjusted, optical parts in different shapes can be attached by combining self-adaptive swing of the hinged clamping plates, the clamp does not need to be replaced, and the remodeling cost of multi-specification detection is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical detection, and in particular to an optical component appearance detection device with good fixing effect. BACKGROUND

[0002] The optical component appearance detection device is an automatic device for detecting surface defects, geometric precision and optical performance related parameters of optical elements, assemblies and related components (such as gratings, optical filters, reticles, etc.). Its core function is to quantitatively analyze the appearance quality of various optical components through optical imaging, photoelectric sensing and other technologies, to ensure that the elements meet the requirements of light transmission, reflection, imaging and other performances in the optical system.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN 217819947 U discloses an optical component appearance detection device with good fixing effect, which includes a base, a detection table installed on the top of the base, a fixing mechanism provided on the top of the detection table, the fixing mechanism including a support bottom plate and two clamping assemblies, the clamping assembly including a clamping block and a clamping rod, and the output shaft of the second motor is fixedly connected with the clamping block. The optical component is fixed by the clamping block and the clamping rod of the two clamping assemblies, and then the clamping assembly is rotated by the second motor to flip the component, so that the component is shot from multiple directions.

[0004] The above prior art has the following disadvantages: In the fixing and flipping process, there is a lack of self-adaptive adjustment capability for different optical component sizes, shapes and materials. This may lead to the need to frequently replace the clamping assembly when detecting different types of optical components, increasing the operation complexity and time cost. SUMMARY

[0005] The present application provides an optical component appearance detection device with good fixing effect, which can solve the problem of lack of self-adaptive adjustment capability for different optical component sizes, shapes and materials in the prior art.

[0006] The utility model provides an optical component appearance detection device with good fixing effect, which comprises a detection cabinet, a conveying mechanism for conveying components to be detected, a detection mechanism for detecting the appearance of the components conveyed by the conveying mechanism, and a turnover mechanism for turning over the components conveyed by the conveying mechanism, the conveying mechanism comprises a conveying belt made of transparent material, the conveying belt is arranged in the detection cabinet, the detection mechanism comprises a camera assembly and a light source assembly, the camera assembly is located above the conveying belt, and the light source assembly is located below the conveying belt, the turnover mechanism comprises a first telescopic rod, a movable support, a rotating frame and a clamping assembly, the first telescopic rod is arranged in a vertical state in the detection cabinet, the movable support is fixedly connected to the telescopic end of the first telescopic rod, the rotating frame is rotatably connected to the movable support, and the clamping assembly is slidably connected to the rotating frame, the rotating frame and the clamping assembly are both arranged in two groups and symmetrically arranged on the movable support, each group of clamping assemblies comprises two second telescopic rods and two clamping plates, the two second telescopic rods are arranged oppositely and slidably connected to the corresponding rotating frame, and the two clamping plates are respectively hingedly connected to the telescopic ends of the corresponding second telescopic rods.

[0007] According to an embodiment of the utility model, the clamping assembly further comprises a hinge joint, a limiting sleeve and a touch switch, one end of the hinge joint is hingedly connected to the clamping plate, one end of the limiting sleeve is provided with a sliding hole, the other end of the hinge joint is slidably connected to the sliding hole, the other end of the limiting sleeve is fixedly connected to the telescopic end of the first telescopic rod, and the touch switch is fixedly arranged at the bottom of the sliding hole. The clamping assembly further comprises limiting blocks, the limiting blocks are arranged in an annular array outside the other end of the hinge joint, and the inner side of the sliding hole is provided with limiting grooves slidably connected to the corresponding limiting blocks. The clamping assembly further comprises a return spring, the return spring is arranged in the sliding hole, one end of the return spring is abutted to the other end of the hinge joint, and the other end of the return spring is abutted to the bottom of the sliding hole.

[0008] According to an embodiment of the utility model, the turnover mechanism further comprises a synchronous shaft, a driving wheel, a driven wheel and a synchronous belt, the side of the rotating frame is fixedly provided with a rotating shaft in a horizontal state, the top of the movable support is provided with a rotating hole rotatably connected to the rotating shaft, the synchronous shaft is rotatably connected to the bottom of the movable support in a horizontal state, the driving wheel is coaxially fixedly connected to the synchronous shaft, the driven wheel is coaxially fixedly connected to the rotating shaft, and the synchronous belt is arranged between the driving wheel and the driven wheel. The turnover mechanism further comprises a turnover motor, the turnover motor is fixedly connected to the movable support, and the output end of the turnover motor is coaxially fixedly connected to the synchronous shaft. The clamping assembly further comprises elastic soft pads, the elastic soft pads are arranged in two groups and fixedly connected to the corresponding clamping plates.

[0009] According to one embodiment of the present application, the clamping assembly further comprises an adjusting screw rod, the side of the rotating frame is provided with a sliding groove, the adjusting screw rod is rotationally arranged in the sliding groove, each second telescopic rod is provided with a sliding block which is slidingly matched with the sliding groove, the sliding block is provided with a screw hole which is threadedly matched with the adjusting screw rod, the adjusting screw rod is provided with two sections of threads which are symmetrically distributed and have opposite screw directions, and the screw hole of the sliding block is matched with a corresponding section of thread.

[0010] According to one embodiment of the present application, the clamping assembly further comprises an adjusting hand wheel, and the adjusting hand wheel is coaxially fixedly connected with the adjusting screw rod.

[0011] According to one embodiment of the present application, the clamping assembly further comprises an adjusting motor, the adjusting motor is fixedly connected with the rotating frame, and an output end of the adjusting motor is coaxially fixedly connected with the adjusting screw rod.

[0012] The present application has the following beneficial effects compared with the prior art: The present application can flexibly adjust the distance between the two groups of clamping plates through the telescopic adjustment of the second telescopic rod and the sliding cooperation with the rotating frame, and can closely fit optical parts of different shapes such as planes and curved surfaces in combination with the self-adaptive swing of the hinged clamping plate, without the need to replace the clamp, thereby reducing the change cost of multi-specification detection. Through the rotation of the rotating frame and the movable support, the detection of the front and back surfaces of the part is realized, and manual intervention is avoided; the movable support is driven to move up and down by the first telescopic rod, so that the rotating frame and the part are away from the conveying belt when they are turned over, thereby avoiding motion interference.

[0013] Additional aspects and advantages of the present application will be made apparent from the following description, which, taken together with the accompanying drawings, describes an embodiment thereof. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken together with the accompanying drawings, in which: Figure 1 Fig. 1 is a perspective structural schematic view of an optical part appearance detection device with good fixing effect according to the present application.

[0015] Figure 2 Fig. 3 is a structural schematic view of a detection mechanism in the present application.

[0016] Figure 3 Fig. 5 is a structural schematic view of a transportation mechanism in the present application.

[0017] Figure 4 Fig. 7 is a perspective structural schematic view of an adjusting hand wheel in the present application.

[0018] Figure 5 Fig. 9 is a perspective structural schematic view of an adjusting motor in the present application.

[0019] Figure 6 Fig. 1 is a schematic view of the three-dimensional structure of the clamping assembly in the application.

[0020] Figure 7 Fig. 2 is a schematic view of the three-dimensional structure of the limiting sleeve in the application.

[0021] The reference signs include: 1, detection cabinet; 2, conveying mechanism; 3, detection mechanism; 4, turnover mechanism; 5, conveying belt; 6, camera assembly; 7, light source assembly; 8, first telescopic rod; 9, movable support; 10, rotating frame; 11, clamping assembly; 12, second telescopic rod; 13, clamping plate; 14, hinge joint; 15, limiting sleeve; 16, touch switch; 17, sliding hole; 18, limiting block; 19, limiting groove; 20, return spring; 21, synchronous shaft; 22, driving wheel; 23, driven wheel; 24, synchronous belt; 25, turnover motor; 26, elastic soft pad; 27, adjusting screw; 28, adjusting hand wheel; 29, adjusting motor. DETAILED DESCRIPTION

[0022] The specific embodiments of the application are described in detail below, but it should be understood that the protection scope of the application is not limited by the specific embodiments.

[0023] First embodiment Please refer to Figures 1 to 7 Fig. 1 shows an optical component appearance detection device with good fixing effect, which comprises a detection cabinet 1, a conveying mechanism 2 for conveying components to be detected, a detection mechanism 3 for detecting the appearance of the components conveyed by the conveying mechanism 2, and a turnover mechanism 4 for turning over the components conveyed by the conveying mechanism 2, the conveying mechanism 2 comprises a conveying belt 5 made of transparent material, the conveying belt 5 is arranged in the detection cabinet 1, the detection mechanism 3 comprises a camera assembly 6 and a light source assembly 7, the camera assembly 6 is located above the conveying belt 5, the light source assembly 7 is located below the conveying belt 5, the turnover mechanism 4 comprises a first telescopic rod 8, a movable support 9, a rotating frame 10 and a clamping assembly 11, the first telescopic rod 8 is fixedly arranged in the detection cabinet 1 in a vertical state, the movable support 9 is fixedly connected with the telescopic end of the first telescopic rod 8, the rotating frame 10 is rotatably connected with the movable support 9, and the clamping assembly 11 is slidably connected with the rotating frame 10, the rotating frame 10 and the clamping assembly 11 are both provided with two groups, and are both symmetrically arranged on the movable support 9, each group of the clamping assembly 11 comprises two second telescopic rods 12 and two clamping plates 13, the two second telescopic rods 12 are oppositely arranged and slidably connected with the corresponding rotating frame 10, and the two clamping plates 13 are respectively hingedly connected with the telescopic ends of the corresponding second telescopic rods 12. The first telescopic rod 8 and the second telescopic rod 12 are both electric push rods.

[0024] In use, first, the optical component to be detected is placed on the transparent conveyor belt 5, and is uniformly conveyed to the detection area, i.e. between the camera assembly 6 and the light source assembly 7, by the conveyor belt 5. At this time, the light source assembly 7 located below the conveyor belt 5 transmits light upward through the transparent conveyor belt 5, and the camera assembly 6 above captures the optical image of the surface of the component in real time. The light shadow difference formed after the light is reflected or transmitted by the surface of the component can clearly present defects such as scratches and bubbles, and the image is transmitted to the processing system for analysis.

[0025] When the back surface of the component needs to be detected, the turnover mechanism 4 is started: the second telescopic rod 12 extends to drive the clamping plate 13 to approach the component, and the clamping plate 13 is self-adapted to fit the edge of the component and clamped through the hinged structure; then, the first telescopic rod 8 extends in the vertical direction to drive the movable support 9 to slide upward, so as to move the two groups of symmetrically arranged rotating frames 10 and clamping assemblies 11 upward, and then the component clamped by the clamping assembly 11 is moved away from the conveyor belt 5; then, the rotating frame 10 rotates 180° to drive the component to turn over; then, the first telescopic rod 8 retracts in the vertical direction to drive the movable support 9 to slide downward, so as to move the two groups of symmetrically arranged rotating frames 10 and clamping assemblies 11 downward, and then the component clamped by the clamping assembly 11 is placed on the conveyor belt 5; then, the second telescopic rod 12 retracts to drive the clamping plate 13 away from the component, so as to cancel the clamping of the component by the clamping assembly 11; finally, the camera assembly 6 captures the image of the back surface again, realizes full-surface detection, and the conveyor belt 5 sends out the component.

[0026] The operation of the conveyor belt 5 can be realized by setting a driving roller, a driven roller and a driving component (such as a motor) on both sides of the detection cabinet 1, arranging the conveyor belt 5 between the driving roller and the driven roller, and driving the driving roller to rotate by the driving component.

[0027] It needs to be specifically pointed out that the camera assembly 6 described above is a visual information acquisition unit, the light source assembly 7 is used to provide a basic condition for imaging of the camera assembly 6, and the specific component selection and installation position of the camera assembly 6 and the light source assembly 7 can be replaced and set according to the actual use environment and conditions, which is not limited herein.

[0028] The second telescopic rod 12 can be flexibly adjusted in length, and is matched with the rotating frame 10 to flexibly adjust the distance between the two clamping plates 13, and the self-adaptive swing of the hinged clamping plate 13 can closely fit optical components of different shapes such as planes and curved surfaces, without the need to replace the clamp, thereby reducing the cost of changing specifications for detection. Through the rotation of the rotating frame 10 and the movable support 9, the detection of the front and back surfaces of the component is realized, and manual intervention is avoided; the first telescopic rod 8 drives the movable support 9 to move up and down, so that the rotating frame 10 and the component are away from the conveyor belt 5 when turning over, thereby avoiding motion interference.

[0029] Second embodiment On the basis of the first embodiment, the clamping assembly 11 further comprises a hinge joint 14, a limiting sleeve 15 and a touch switch 16, one end of the hinge joint 14 is hinged with the clamping plate 13, one end of the limiting sleeve 15 is provided with a sliding hole 17, the other end of the hinge joint 14 is in sliding fit connection with the sliding hole 17, the other end of the limiting sleeve 15 is fixedly connected with the telescopic end of the first telescopic rod 8, and the touch switch 16 is fixedly arranged at the hole bottom of the sliding hole 17. The clamping assembly 11 further comprises a limiting block 18, a plurality of limiting blocks 18 are arranged and arranged in an annular array outside the other end of the hinge joint 14, and the inner side of the sliding hole 17 is provided with a limiting groove 19 in sliding fit connection with the corresponding limiting block 18. The clamping assembly 11 further comprises a return spring 20, the return spring 20 is arranged in the sliding hole 17, one end of the return spring 20 abuts against the other end of the hinge joint 14, and the other end of the return spring 20 abuts against the hole bottom of the sliding hole 17.

[0030] In the clamping process, the second telescopic rod 12 extends to push the clamping plate 13 connected with the hinge joint 14 to approach the component, when the clamping plate 13 is attached to the side of the component, the hinge joint 14 is in sliding fit connection with the limiting sleeve 15 in the sliding hole 17, the return spring 20 is compressed, when the limiting block 18 slides into the limiting groove 19 to trigger the touch switch 16, it indicates that the clamping plate 13 has been clamped stably, and at this time the second telescopic rod 12 stops extending; when the clamping is released, the return spring 20 pushes the hinge joint 14 to drive the clamping plate 13 to reset, so that the clamping action is accurate and stable every time.

[0031] Through the elastic clamping and trigger feedback mechanism, the extension length of the second telescopic rod 12 can be self-adapted to the size of the component, so as to avoid damage to the element due to excessive clamping force; the touch switch 16 and the limiting structure ensure that the clamping is in place and the feedback signal is fed back, so as to prevent the component from falling off in the turnover, greatly improve the reliability and safety of the detection process, and especially suitable for fragile or high-precision optical components.

[0032] Third embodiment On the basis of the first embodiment, the turnover mechanism 4 further comprises a synchronous shaft 21, a driving wheel 22, a driven wheel 23 and a synchronous belt 24, the side of the rotating frame 10 is fixedly provided with a rotating shaft in a horizontal state, the top of the movable support 9 is provided with a rotating hole which is rotationally connected with the rotating shaft, the synchronous shaft 21 is rotationally connected with the bottom of the movable support 9 in a horizontal state, the driving wheel 22 is coaxially fixedly connected with the synchronous shaft 21, the driven wheel 23 is coaxially fixedly connected with the rotating shaft, and the synchronous belt 24 is cooperatively arranged between the driving wheel 22 and the driven wheel 23. The turnover mechanism 4 further comprises a turnover motor 25, the turnover motor 25 is fixedly connected with the movable support 9, and the output end of the turnover motor 25 is coaxially fixedly connected with the synchronous shaft 21. The clamping assembly 11 further comprises elastic soft pads 26, the elastic soft pads 26 are two in number and are fixedly connected with the corresponding clamping plates 13, respectively.

[0033] The turnover motor 25 drives the synchronous shaft 21 to rotate, drives the driving wheel 22 to rotate, drives the driven wheel 23 and the rotating shaft to synchronously rotate through the synchronous belt 24, and realizes 180° turnover of the rotating frame 10; at the same time, the elastic soft pads 26 on the clamping plates 13 are closely attached to the parts during clamping, provide buffering, and ensure that the parts are uniformly stressed and stably rotated during turnover. The synchronous belt 24 transmission ensures that the two groups of rotating frames 10 are synchronously turned over, avoids damage of the parts due to uneven stress; the turnover motor 25 realizes precise control and improves the degree of automation; the elastic soft pads 26 effectively buffer the clamping force, prevent scratching of the optical surface, enhance the applicability of the device to the damaged optical elements, and improve the detection quality.

[0034] Fourth embodiment On the basis of the first embodiment, the clamping assembly 11 further comprises an adjusting screw 27, the side of the rotating frame 10 is provided with a sliding groove, the adjusting screw 27 is rotationally arranged in the sliding groove, each second telescopic rod 12 is provided with a sliding block which is slidingly connected with the sliding groove, the sliding block is provided with a screw hole which is threadedly connected with the adjusting screw 27, the adjusting screw 27 is provided with two sections of threads which are symmetrically distributed and have opposite screw directions, and the screw hole of the sliding block is connected with a corresponding section of thread. By rotating the adjusting screw 27, the two sections of threads on the adjusting screw 27 are connected with the screw holes of the sliding blocks, so that the two sliding blocks are reversely slid along the sliding grooves, the second telescopic rods 12 and the clamping plates 13 are synchronously approached or moved away, the distance between the clamping plates 13 is quickly and accurately adjusted, and optical parts of different sizes are adapted.

[0035] Fifth embodiment On the basis of the fourth embodiment, the clamping assembly 11 further comprises an adjusting hand wheel 28 coaxially fixedly connected with the adjusting screw rod 27. The operator manually rotates the adjusting hand wheel 28 to drive the adjusting screw rod 27 to rotate, and then drive the sliding block and the clamping plate 13 to move, so as to realize manual adjustment of the distance between the clamping plates 13, and flexibly adjust the clamping assembly 11 according to the size of the parts, so as to meet different detection requirements.

[0036] Sixth embodiment On the basis of the fourth embodiment, the clamping assembly 11 further comprises an adjusting motor 29 fixedly connected with the rotating frame 10, and the output end of the adjusting motor 29 is coaxially fixedly connected with the adjusting screw rod 27. By controlling the operation of the adjusting motor 29, the adjusting motor 29 drives the adjusting screw rod 27 to rotate, so that the sliding block drives the second telescopic rod 12 and the clamping plate 13 to automatically move, the distance between the clamping plates 13 is accurately adjusted according to the detection requirement, the automatic adjustment of the distance between the clamping assemblies 11 is realized, and different sizes of optical parts are adapted.

[0037] The above only discloses several specific embodiments of the present application, but the embodiments of the present application are not limited to this. Any changes that can be thought of by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. An optical component appearance inspection device with good fixing effect, comprising an inspection cabinet (1), characterized in that: The invention also includes a transport mechanism (2), a detection mechanism (3) and a flip mechanism (4), wherein the transport mechanism (2) includes a conveyor belt (5) made of a transparent material, and the conveyor belt (5) is arranged in cooperation with the detection cabinet (1), and the detection mechanism (3) includes a camera assembly (6) and a light source assembly (7), wherein the camera assembly (6) is located above the conveyor belt (5), and the light source assembly (7) is located below the conveyor belt (5), and the flip mechanism (4) includes a first telescopic rod (8), a movable bracket (9), a rotating frame (10) and a clamping assembly (11), wherein the first telescopic rod (8) is fixedly arranged in a vertical state in the detection cabinet (1), and the movable bracket (9) is arranged in a rotating frame (10) and a clamping assembly (11). The movable bracket (9) is fixedly connected to the telescopic end of the first telescopic rod (8), the rotating frame (10) is rotationally connected to the movable bracket (9), and the clamping assembly (11) is slidingly connected to the rotating frame (10). The rotating frame (10) and the clamping assembly (11) are each provided with two groups, and are symmetrically arranged on the movable bracket (9). Each group of the clamping assembly (11) includes two second telescopic rods (12) and two clamping plates (13). The two second telescopic rods (12) are arranged opposite to each other and are slidingly connected to the corresponding rotating frame (10). The two clamping plates (13) are respectively hinged to the telescopic ends of the corresponding second telescopic rods (12).

2. The optical component appearance inspection device with good fixing effect according to claim 1, characterized in that: The clamping assembly (11) further includes a hinged joint (14), a limiting sleeve (15) and a touch switch (16), one end of the hinged joint (14) is hinged to the clamping plate (13), one end of the limiting sleeve (15) is provided with a sliding hole (17), the other end of the hinged joint (14) is slidably connected to the sliding hole (17), the other end of the limiting sleeve (15) is fixedly connected to the telescopic end of the first telescopic rod (8), and the touch switch (16) is fixedly arranged at the bottom of the sliding hole (17).

3. The optical component appearance inspection device with good fixing effect as claimed in claim 2, characterized in that: The clamping assembly (11) further includes a limit block (18), wherein a plurality of limit blocks (18) are provided in a ring array on the outside of the other end of the hinge joint (14), and a limit groove (19) is provided on the inside of the sliding hole (17) for slidingly engaging with the corresponding limit block (18).

4. The optical component appearance inspection device with good fixing effect as claimed in claim 2, characterized in that: The clamping assembly (11) further includes a return spring (20), which is arranged in the sliding hole (17), one end of the return spring (20) abuts against the other end of the hinge joint (14), and the other end of the return spring (20) abuts against the bottom of the sliding hole (17).

5. The optical component appearance inspection device with good fixing effect as claimed in claim 1, characterized in that: The turning mechanism (4) further comprises a synchronous shaft (21), a driving wheel (22), a driven wheel (23) and a synchronous belt (24); a rotating shaft in a horizontal state is fixedly provided on the side of the rotating frame (10); a rotating hole rotatably connected to the rotating shaft is provided on the top of the movable bracket (9); the synchronous shaft (21) is in a horizontal state and rotatably connected to the bottom of the movable bracket (9); the driving wheel (22) is coaxially fixedly connected to the synchronous shaft (21); the driven wheel (23) is coaxially fixedly connected to the rotating shaft; and the synchronous belt (24) is arranged between the driving wheel (22) and the driven wheel (23).

6. The optical component appearance inspection device with good fixing effect as claimed in claim 5, characterized in that: The flip mechanism (4) further includes a flip motor (25), the flip motor (25) is fixedly connected to the movable bracket (9), and the output end of the flip motor (25) is coaxially fixedly connected to the synchronous shaft (21).

7. The optical component appearance inspection device with good fixing effect according to claim 1, characterized in that: The clamping assembly (11) further includes an elastic soft pad (26), two of which are provided and fixedly connected to corresponding clamping plates (13).

8. The optical component appearance inspection device with good fixing effect according to claim 1, characterized in that: The clamping assembly (11) further includes an adjusting screw (27), a sliding groove is provided on the side of the rotating frame (10), and the adjusting screw (27) is rotatably arranged in the sliding groove, and each of the second telescopic rods (12) is provided with a slider that slides with the sliding groove, and the slider is provided with a screw hole that is threadedly connected to the adjusting screw (27), and the adjusting screw (27) is provided with two sections of threads that are symmetrically distributed and have opposite spiral directions, and the screw hole of the slider is matched with the corresponding section of thread.

9. The optical component appearance inspection device with good fixing effect as claimed in claim 8, characterized in that: The clamping assembly (11) further comprises an adjusting hand wheel (28), wherein the adjusting hand wheel (28) is coaxially fixedly connected to the adjusting screw rod (27).

10. The optical component appearance inspection device with good fixing effect according to claim 8, characterized in that: The clamping assembly (11) further comprises an adjusting motor (29), wherein the adjusting motor (29) is fixedly connected to the rotating frame (10), and an output end of the adjusting motor (29) is coaxially fixedly connected to the adjusting screw rod (27).

Images