An optical detection device

Abstract

The application discloses an optical detection device and relates to the field of optical detection, which comprises a rotating part and a pushing part, and a rotatable brush body is arranged between the rotating part and the pushing part; the rotating part comprises a supporting seat and a limiting piece; the supporting seat is provided with a limiting area; the limiting piece is arranged on the supporting seat along a first direction and located in the limiting area; one end of the brush body close to the supporting seat is provided as an abutting section; the abutting section is distributed in the limiting area along a second direction; and the abutting section abuts against the limiting piece. When the limiting piece contacts the abutting section, the pushing part pushes the brush body towards the rotating part, and the brush body can only move along the second direction. The abutting section of the brush body abuts against the limiting piece along the first direction before clamping, and the brush body is preliminarily constrained in the radial direction, so that the brush body can only move along the second direction, and the problems of poor centering and initial eccentricity of the brush body caused by the lack of radial position limitation in the impact clamping are avoided.

Description

Technical Field

[0001] This invention relates to the field of optical inspection, and more particularly to an optical inspection device. Background Technology

[0002] The main brush of a robotic vacuum cleaner is its core cleaning component, typically consisting of a roller brush shaft and bristles or rubber strips. During rotation, it is responsible for picking up dust and debris. Its structural form and assembly precision directly affect the cleaning effect and overall machine performance. Since the main brush is a wear-prone consumable material and requires high consistency in mass production, missing bristles, deformation, or dimensional deviations will reduce cleaning ability and even affect the operation of the entire machine. Therefore, it is necessary to use optical inspection to quickly, non-contactly, and comprehensively inspect its shape, size, and defects to ensure product quality and performance.

[0003] In existing optical detection devices for the main brush of robotic vacuum cleaners, an impact-type clamping method is typically used to hold the main brush. This method lacks spatial constraints on the main brush's position, easily leading to misalignment and rotational jerking issues. Specifically, existing optical detection devices position the main brush by clamping it at both ends and use rotation to achieve full-surface detection. However, in practical applications, to improve cycle efficiency, the clamping mechanism often employs a rapid closing or even impact-based clamping method, causing the main brush to be instantly fixed before effective constraint and stable alignment are achieved. During this process, the main brush's position in space lacks sufficient constraint, easily resulting in uncontrollable offsets in the radial or directional directions, thus introducing initial eccentricity. At the same time, the main brush body has a certain degree of flexibility, and its end structure is mostly made of plastic. Under impact, it is prone to slight deformation or displacement, further exacerbating the inconsistency between its rotation axis and the ideal central axis. This causes the main brush to jerk, oscillate, or experience uneven resistance during subsequent rotation, thereby affecting the stability, continuity, and completeness of the optical detection coverage.

[0004] Therefore, an optical inspection device is proposed to solve the problem of lack of position restriction of the main brush under impact clamping. Summary of the Invention

[0005] The purpose of this invention is to provide an optical inspection device that solves the problem of lack of positional restriction of the main brush under impact clamping.

[0006] To achieve this objective, the present invention adopts the following technical solution: An optical inspection device includes a rotating part and a pushing part, and a rotatable brush body is disposed between the rotating part and the pushing part; The rotating part includes a support base and a limiting member. A limiting area is formed on the support base. The limiting member is disposed on the support base along a first direction and is located within the limiting area. One end of the brush body near the support base is designated as an abutting section. The abutting sections are distributed within the limiting area along a second direction and abut against the limiting member. When the limiting member contacts the abutting section, the pushing part pushes the brush body in the direction of the rotating part. The brush body can only move along the second direction.

[0007] The support base has a groove, the restriction area is located in the groove, and the abutment section contacts the bottom wall of the groove. The restriction element is two retractable first balls, which are symmetrically arranged on the inner side wall of the groove. The first balls are in rolling connection with the outer peripheral surface of the abutment section. When the abutment section contacts the first balls and the bottom wall of the groove respectively, the brush body can only move in the second direction.

[0008] A receiving groove is provided on the inner sidewall of the groove corresponding to the position of the first ball. The receiving groove is connected to the first ball by a spring. The first ball extends from the receiving groove into the restricted area. The length of the first ball inside the restricted area is less than the length of the first ball inside the receiving groove.

[0009] The bottom wall of the groove is provided with a rolling second ball, which is located within the restricted area and makes rolling contact with the abutment section.

[0010] The outer periphery of the abutting section is provided with a protrusion, and the first ball and the second ball are staggered and connected to the two sides of the protrusion respectively.

[0011] The number of the first ball bearings is four, and they are arranged in a rectangular shape. An insertion area is formed between two first ball bearings on the same inner sidewall of the groove. The protrusion is inserted into the insertion area, and the protrusion is in rolling connection with the first ball bearings in the insertion area.

[0012] The pushing part includes a cylinder and a push rod. The output shaft of the cylinder is connected to the push rod. The extension of the cylinder output shaft causes the push rod to move toward the brush body and clamps the brush body axially with the rotating section of the rotating part.

[0013] The rotating part also includes a motor, the output shaft of which contacts the abutment section near the support base and works with the push rod to axially clamp the brush body.

[0014] The optical inspection device further includes an inspection head that moves toward the brush body in a second direction and is used to inspect the outer peripheral surface of the brush body.

[0015] The rotating part and the pushing part are arranged on the worktable, and a linear module is arranged on the worktable at the position corresponding to the brush body. The detection head is arranged on the linear module.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides an optical inspection device. By setting a support base and a limiting member located in the restricted area in the rotating part, the abutting section of the brush body abuts against the limiting member along a first direction before clamping, thereby pre-constraining the brush body in the radial direction. When the rotating part and the pushing part subsequently clamp the brush body, the brush body is already limited to the correct axis by the limiting member and can only move along a second direction. This avoids the problems of poor brush body alignment and initial eccentricity caused by the lack of radial position restriction in impact clamping. Since the contact between the limiting member and the abutting section is completed before the clamping action, the brush body will not produce uncontrollable radial displacement when the clamping force is applied. At the same time, the end structure no longer bears the impact load, effectively preventing the deformation of the plastic end caused by the impact force, and thus eliminating the jumping, swaying and uneven resistance phenomena that occur during subsequent rotation. This scheme makes the rotation axis of the brush body stable during inspection, and the clamping process is smooth and controllable, significantly improving the continuity and coverage integrity of optical inspection. Furthermore, since the brush body can only move along the second direction, even if there is a brief fluctuation in the clamping force of the pushing part, it will not affect the radial positioning accuracy, thereby ensuring the repeatability and reliability of the inspection data. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the abutment section in this invention. Figure 3 This is a schematic diagram of the internal structure of the receiving groove in this invention; Figure 4 This is a schematic diagram of the connection structure between the protrusion and the second ball in this invention; Figure 5This is a top view of the groove structure in this invention.

[0020] Illustration: 1. Rotating part; 11. Support base; 111. Groove; 112. Restriction area; 113. Receiving groove; 114. Insertion area; 12. Restricting component; 12a. First ball bearing; 13. Spring; 14. Second ball bearing; 15. Motor; 2. Pushing part; 21. Cylinder; 22. Push rod; 3. Brush body; 31. Abutting section; 32. Protrusion; 4. Detection head; 5. Linear module. Detailed Implementation

[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0023] Example 1: Please see Figure 1-5 An optical inspection device in this embodiment includes a rotating part 1 and a pushing part 2, and a rotatable brush body 3 is disposed between the rotating part 1 and the pushing part 2. The rotating part 1 includes a support base 11 and a limiting member 12. A limiting area 112 is formed on the support base 11. The limiting member 12 is disposed on the support base 11 along a first direction and is located within the limiting area 112. One end of the brush body 3 near the support base 11 is provided as an abutting section 31. The abutting section 31 is distributed in the limiting area 112 along a second direction and abuts against the limiting member 12. When the limiting member 12 contacts the abutting section 31, the pushing part 2 pushes the brush body 3 toward the rotating part 1. The brush body 3 can only move along the second direction.

[0024] It should be noted that the first direction is the radial direction of the brush body 3, and the second direction is the axial direction of the brush body 3.

[0025] In application, the brush body 3 is placed between the rotating part 1 and the pushing part 2. The part of the brush body 3 located within the restriction area 112 formed by the support base 11 serves as the abutment section 31. Since the limiting member 12 is fixed to the support base 11 in the first direction within the restriction area 112, when the brush body 3 is inserted, the abutment section 31 naturally contacts the limiting member 12. At this time, the limiting member 12, in conjunction with the restriction area 112, applies radial constraint to the brush body 3 in addition to the second direction. Subsequently, the rotating part 1 and the pushing part 2 clamp the brush body 3. Since the contact between the limiting member 12 and the abutment section 31 has already limited the radial position of the brush body 3 before or simultaneously with the clamping action, the brush body 3 can only move in the second direction after being clamped and cannot produce radial offset or rotation. With this sequence of first radial limiting and then axial clamping, the above structure effectively solves the problems of poor alignment, initial eccentricity, and rotational runout of the brush body 3 caused by the lack of radial constraint in traditional impact clamping. The existing method involves instantaneously fixing the brush body 3 with impact force before any positional constraints are obtained, which can easily cause uncontrollable radial displacement or even end deformation of the brush body 3. However, in the above structure, the contact between the limiting member 12 and the abutment section 31 establishes a clear radial reference in advance, so that the brush body 3 is already constrained on the correct axis when the clamping force is applied, thereby avoiding eccentricity and subsequent swaying during rotation. Under the action of the above structure, the rotation axis of the brush body 3 is stable and the resistance is uniform during the detection process, and the continuity and coverage integrity of optical detection are significantly guaranteed. At the same time, since the clamping process no longer relies on impact force, the plastic structure at the end of the brush body 3 is not easily damaged, and the repeatability of the tooling is also improved.

[0026] Furthermore, since the contact between the limiting member 12 and the abutment section 31 is established before the clamping action, the brush body 3 already has a stable radial support point even before being pressed by the pushing part 2. This allows the operator to temporarily place the brush body 3 on the limiting area 112 without it falling or tilting, thus simplifying the auxiliary positioning steps during the feeding process and improving feeding efficiency and reliability. Simultaneously, when the brush body 3 is driven to rotate by the rotating part 1 during the detection process, the limiting member 12 simultaneously serves as a rotational support and radial limiter. Since the brush body 3 can only move in the second direction, the centrifugal force or vibration generated by the rotation will not cause the brush body 3 to move radially. Therefore, the limiting member 12 itself also bears a portion of the dynamic load, reducing the stress on the clamping ends of the rotating part 1 and the pushing part 2, and extending its service life. Furthermore, the limiting member 12 is disposed on the support base 11 along the first direction, and after the abutting section 31 contacts the limiting member 12, the brush body 3 can only move along the second direction. This constraint method essentially reduces the spatial degree of freedom of the brush body 3 from six to only one translational degree of freedom. Therefore, even if the clamping force of the pushing part 2 fluctuates briefly or is impacted, the brush body 3 will not be displaced in the radial or pitch direction, thereby ensuring that the relative position between the brush body 3 and the detection head 4 remains constant during the detection process and improving the repeatability of the detection data.

[0027] Specifically, the pushing unit 2 includes a cylinder 21 and a push rod 22. The output shaft of the cylinder 21 is connected to the push rod 22. The extension of the output shaft of the cylinder 21 causes the push rod 22 to move toward the brush body 3 and axially clamp the brush body 3 with the rotating section of the rotating unit 1. The rotating unit 1 also includes a motor 15. The output shaft of the motor 15 contacts the abutment section 31 near the support base 11 and cooperates with the push rod 22 to axially clamp the brush body 3.

[0028] It should be noted that the pushing unit 2, through the extension of the output shaft of the cylinder 21, drives the push rod 22 to move towards the brush body 3, thus working together with the rotating unit 1 to achieve axial clamping of the brush body 3. The output shaft of the motor 15 mounted on the rotating unit 1 contacts the abutment section 31 to drive the brush body 3 to rotate. This structure allows the clamping action to be provided with controllable thrust by the cylinder 21, avoiding the instantaneous impact force of impact clamping. At the same time, the direct contact between the motor 15 and the abutment section 31 ensures that the rotational power is stably transmitted to the radially limited brush body 3. Thus, this structure further solves the problem of brush body 3 end deformation or centering misalignment caused by uncontrollable thrust during impact clamping. Because the linear extension and retraction of the cylinder 21 can adjust the thrust magnitude and speed, and the stable contact between the output shaft of the motor 15 and the abutment section 31 ensures axial consistency during rotation, the clamping process is smooth and controllable, and the brush body 3 rotates without slippage or eccentricity, improving the accuracy and repeatability of optical detection.

[0029] In one specific embodiment, the optical inspection device further includes an inspection head 4, which moves toward the brush body 3 in a second direction and is used to inspect the outer peripheral surface of the brush body 3. The rotating part 1 and the pushing part 2 are disposed on a worktable, and a linear module 5 is disposed on the worktable corresponding to the position of the brush body 3, and the inspection head 4 is disposed on the linear module 5.

[0030] Both the rotating part 1 and the pushing part 2 are fixed on the worktable. The detection head 4 is mounted on the linear module 5, which is positioned corresponding to the brush body 3. When the brush body 3 is clamped and can only move along the second direction, the detection head 4 moves towards the brush body 3 along the second direction under the drive of the linear module 5. That is, a relative axial movement occurs between the detection head 4 and the brush body 3. At the same time, the rotating part 1 drives the brush body 3 to rotate, so that the detection head 4 can perform segmented or continuous scanning detection on the entire outer peripheral surface of the brush body 3. By driving the detection head 4 to move along the second direction through the linear module 5, and cooperating with the rotation of the brush body 3, full coverage detection of the entire outer peripheral surface of the brush body 3 can be achieved, avoiding defect omissions caused by incomplete detection coverage. Under the action of the above structure, the integrity and efficiency of optical detection are significantly improved. When the detection head 4 moves at a constant speed on the linear module 5, it can obtain continuous and stable images or signals. At the same time, since the brush body 3 only moves along the second direction and has no radial runout, the distance between the detection head 4 and the surface of the brush body 3 remains constant, ensuring the consistency of detection accuracy.

[0031] Example 2: The basic content is the same as in Example 1, except that: Please see Figure 3-4 In this embodiment, the support base 11 has a groove 111, the restriction area 112 is located in the groove 111, and the abutment section 31 contacts the bottom wall of the groove 111. The restriction member 12 consists of two retractable first balls 12a, which are symmetrically arranged on the inner sidewall of the groove 111. The first balls 12a are in rolling contact with the outer peripheral surface of the abutment section 31. When the abutment section 31 contacts the first balls 12a and the bottom wall of the groove 111 respectively, the brush body 3 can only move in the second direction. It should be noted that the first balls 12a can extend and retract radially in the receiving groove 113 by means of the spring 13. At the same time, the first balls 12a and the inner wall of the receiving groove 113 are in clearance fit, so that the first balls 12a can roll freely around their center. The extension and retraction movements and the rolling movements are independent of each other and do not interfere with each other.

[0032] In application, when the brush body 3 is inserted, its abutting section 31 enters the restriction area 112 within the groove 111. The inner bottom wall of the groove 111 provides bottom support for the abutting section 31, while two retractable first balls 12a symmetrically arranged on the inner sidewall of the groove 111 form rolling contact with the outer peripheral surface of the abutting section 31 from both sides. Due to the retractability of the first balls 12a, they can adapt to the diameter change of the abutting section 31 and apply elastic radial force. At this time, the abutting section 31 is simultaneously constrained by the bottom plane contact and the point contact of the first balls 12a on both sides, thus completely restricting radial displacement within the cross-section of the groove 111, allowing it to move only in the second direction (i.e., axial direction). This radial positioning method solves the problems of misalignment and local wear caused by insufficient radial constraint points or rigid contact in impact clamping. Although the bottom wall of the groove 111 alone can provide vertical limitation, if not... With the lateral retractable first ball 12a, the brush body 3 may still shift in the horizontal direction. However, the two symmetrically arranged retractable first balls 12a not only actively push the abutment section 31 to the center of the groove 111 from both sides, but also greatly reduce the impact and friction during clamping through the rolling connection, thereby avoiding the end of the brush body 3 from being deformed by impact or damaged by friction. Under the action of the above structure, the brush body 3 is stably restricted to the center position in the groove 111, and the jumping and swaying during rotation are further reduced. At the same time, since the first ball 12a is a retractable structure, the brush body 3 can easily enter and exit the restricted area 112 in the groove 111. When brush bodies 3 of different diameters are put in, the first ball 12a will adaptively compress or extend, so that the same tooling can be compatible with multiple specifications of brush bodies 3 without changing the groove 111. In addition, the rolling connection also makes the brush body 3 have less resistance and lower energy consumption when rotating.

[0033] Furthermore, the inner bottom wall of the groove 111 is in surface contact with the abutment section 31, which can withstand a large axial clamping force and is not easily deformed. If the two symmetrical first balls 12a wear out during long-term use, they can be quickly repaired by replacing the first balls 12a, resulting in low maintenance costs. At the same time, since the first balls 12a are telescopic, even if there is a slight deviation when the brush body 3 is installed, the first balls 12a will push it back into place through elastic force, playing an automatic guiding role. This reduces the accuracy requirements for the operator to place the brush body 3 and improves production efficiency.

[0034] Furthermore, such as Figure 3 As shown, a receiving groove 113 is provided on the inner wall of the groove 111 corresponding to the position of the first ball 12a. The receiving groove 113 is connected to the first ball 12a by a spring 13. The first ball 12a extends from the receiving groove 113 into the restriction area 112. The length of the first ball 12a inside the restriction area 112 is less than the length of the first ball 12a inside the receiving groove 113. It should be noted that the preload of the spring 13 is sufficient to overcome the slight impact when the brush body 3 is inserted, ensuring that the first ball 12a and the abutment section 31 are always in contact.

[0035] In application, a receiving groove 113 is formed on the inner wall of the groove 111 at the position corresponding to the first ball 12a. A spring 13 connects the receiving groove 113 to the first ball 12a, allowing the first ball 12a to extend from the inside of the receiving groove 113 into the restricted area 112. The length of the first ball 12a within the restricted area 112 is less than its length within the receiving groove 113. This means that when the abutting section 31 enters the restricted area 112, only a small portion of the first ball 12a protrudes outside the receiving groove 113 and contacts the abutting section 31, while most of the ball remains enclosed by the receiving groove 113. Simultaneously, the spring 13 can generate a corresponding compression amount based on the actual diameter of the abutting section 31. Due to the shorter exposed portion, the first ball 12a can only retract along the axial direction of the receiving groove 113 when compressed by the abutting section 31, and cannot produce lateral oscillation. This structure solves the problem of traditional rigid first balls 12a or completely exposed first balls 12a being prone to cavitation during long-term use. The problems of jamming, detachment, or decreased positioning accuracy are addressed by the fact that if the first ball 12a protrudes too far, it is prone to deflection or jamming at the edge of the receiving groove 113 when subjected to tilting force. In the above structure, the protruding part is shorter and most of the ball is constrained by the receiving groove 113, so that the first ball 12a can only move smoothly along the extension and retraction direction of the spring 13. At the same time, the spring 13 provides elastic preload to ensure that the first ball 12a always keeps in contact with the abutment section 31 without generating rigid impact, thereby avoiding the phenomenon that the brush body 3 cannot be smoothly installed or the clamping force is uneven due to the jamming of the first ball 12a. Under the action of the above structure, the extension and retraction movement of the first ball 12a is more stable and reliable, and it is not easy to jam or wear unevenly after long-term use. The clamping repeatability accuracy of the tooling is maintained. At the same time, due to the presence of the spring 13, the first ball 12a can automatically adapt and maintain a constant radial pressure when brush bodies 3 of different diameters are installed, further reducing the risk of scratches on the surface of the brush body 3.

[0036] Furthermore, because the exposed length of the first ball 12a is relatively short, even if the spring 13 fails, the first ball 12a will not completely detach from the receiving groove 113, preventing parts from falling and causing equipment failure. This structure also simplifies the replacement of the first ball 12a; it can be removed simply from the opening of the receiving groove 113 without disassembling the entire groove 111 assembly, reducing maintenance difficulty and downtime. Since the length of the first ball 12a within the restricted area 112 is less than its length within the receiving groove 113, most of the ball of the first ball 12a is enclosed by the receiving groove 113. This means that when the first ball 12a is subjected to radial force applied by the abutment section 31, the force point is closer to the center of the ball, significantly reducing the eccentric moment between the first ball 12a and the edge of the receiving groove 113. After long-term use, the groove opening of the receiving groove 113 is less prone to deformation or wear, thus extending its service life. Simultaneously, because the exposed portion of the first ball 12a is relatively short... The compression stroke of spring 13 is also limited to a small range, which means that spring 13 is always in the linear region of its elastic properties during operation, and is not prone to plastic deformation or fatigue fracture, thereby improving the reliability and replacement cycle of spring 13. In addition, this structure also ensures that even if the surface of the first ball 12a is slightly worn after long-term use, the first ball 12a can still maintain effective contact with the abutment section 31 after wear because the exposed length is originally short. The positioning accuracy will not be affected by the increase in radial clearance due to wear, further improving durability.

[0037] In a specific embodiment, such as Figure 4 As shown, the bottom wall of the groove 111 is provided with a rolling second ball 14, which is located in the restricted area 112 and rolls in contact with the abutment section 31.

[0038] In application, when the abutment section 31 enters the restricted area 112 within the groove 111, the fixed support surface originally provided by the bottom wall of the groove 111 is replaced by a rollable second ball 14. The abutment section 31 no longer slides against the bottom wall of the groove 111, but instead forms a rolling contact with the second ball 14. At the same time, the retractable first balls 12a on both sides continue to roll against the outer circumferential surface of the abutment section 31. In this way, the abutment section 31 is simultaneously subjected to bottom rolling support and lateral rolling constraint within the groove 111. Since the second ball 14 can roll freely, when the brush body 3 moves along the second direction or is driven to rotate by the rotating part 1, the contact between the abutment section 31 and the supporting bottom wall (bottom wall of the groove 111) changes from sliding to rolling, and the frictional resistance is greatly reduced. Through this bottom rolling contact method, the frictional resistance is significantly reduced. This design solves the problems of wear, heat generation, and uneven rotational resistance caused by sliding friction between the support base wall and the contact section 31. In actual testing, the brush body 3 needs to rotate and may move axially. If the support base wall is a fixed plane, the contact section 31 will generate continuous sliding friction during rotation, which will not only wear down the surface of the contact section 31 but may also cause fluctuations in rotational torque. The introduction of the second ball bearing 14 transforms the friction into rolling friction, thus avoiding rotational jumps and surface scratches caused by uneven friction. Under the effect of the above structure, the brush body 3 rotates more smoothly and stably, the driving torque required by the motor 15 of the rotating part 1 is more stable, the speed fluctuation of the brush body 3 during optical testing is reduced, and the wear between the contact section 31 and the tooling is significantly reduced, extending the service life of the tooling.

[0039] Furthermore, the second ball 14, together with the first balls 12a on both sides, forms a three-point rolling support surface, making the radial positioning of the contact section 31 within the restricted area 112 more accurate and the centering better. This is because the rolling contact points of the three balls can adaptively balance the position of the contact section 31. In addition, when the brush body 3 is inserted, the rolling characteristics of the second ball 14 make the pushing process easier. The operator can push the brush body 3 to the clamping position without overcoming the sliding friction of the bottom wall, thereby reducing the clamping difficulty. At the same time, after the bottom wall of the groove 111 adopts a ball structure, the dust or debris that is easy to accumulate in the groove 111 will be carried out or reduced by the rolling of the second ball 14, which is conducive to maintaining the cleanliness of the restricted area 112. In addition, the rolling contact makes the starting resistance of the brush body 3 from rest to rotation significantly lower than that of sliding friction, thereby allowing the use of a smaller power motor 15 for drive and reducing the noise generated during rotation, making the detection process quieter.

[0040] Example 3: The basic content is the same as in Example 2, except that: Please see Figure 3-5In this embodiment, a protrusion 32 is provided on the outer periphery of the abutment section 31. The first ball 12a and the second ball 14 are staggered and are respectively rolled on both sides of the protrusion 32. The protrusion 32 is an annular protrusion provided along the outer periphery of the abutment section 31, and its two sides are respectively in rolling contact with the first ball 12a and the second ball 14.

[0041] In application, after the brush body 3 is inserted, the protrusion 32 on the outer periphery of the abutment section 31 enters the restriction area 112 within the groove 111. At this time, the first ball 12a and the second ball 14, which are staggered, no longer simultaneously contact the same continuous surface of the abutment section 31, but instead act on both sides of the protrusion 32. That is, the first ball 12a rolls laterally and connects to the upper side or one side of the protrusion 32, and the second ball 14 rolls from the bottom and connects to the lower side or the other side of the protrusion 32. Due to the staggered distribution, The contact points of each ball are not on the same axial section, thus forming multi-point, multi-directional rolling support; through the cooperation structure of the protrusion 32 and the misaligned balls, the problem of axial movement or excessive local wear caused by repeated friction between the balls and the same surface when the cylindrical abutment section 31 is constrained by the balls can also be solved. The setting of the protrusion 32 makes the first ball 12a and the second ball 14 roll and connect on its two sides respectively, thereby forming a circumferential positioning feature on the abutment section 31. When the brush body 3 When subjected to axial force from the pushing part 2 or the rotating part 1, the balls on both sides of the protrusion 32 can provide limiting support from opposite directions simultaneously, thereby adding a bidirectional axial limiting function on the basis of the original radial constraint, effectively preventing the brush body 3 from undergoing unexpected axial movement within the restricted area 112, making the clamping and positioning more comprehensive and reliable. Under the action of the above structure, the introduction of the protrusion 32 enhances the axial positioning effect of the brush body 3 within the restricted area 112. When the pushing part 2 or the rotating part 1 applies an axial impact, the first ball 12a and the second ball 14 on both sides of the protrusion 32 can jointly constrain the position of the brush body 3 from opposite directions, thereby limiting the possible axial movement to a very small range. At the same time, since the first ball 12a and the second ball 14 roll in contact with different sides of the protrusion 32 respectively, the contact areas of each ball are separated from each other, so that the wear load is distributed, avoiding excessive wear on a single contact surface, thereby further extending the overall service life of the balls and the brush body 3.

[0042] Furthermore, the cooperation between the protrusion 32 and the misaligned ball makes the brush body 3 have a clear feel when it is installed. The operator can judge whether the brush body 3 is installed correctly by feeling the change in resistance when the protrusion 32 passes over the ball, thereby reducing the probability of misoperation. In addition, this structure also allows the brush body 3 to generate a slight axial self-centering effect when rotating by using the rolling contact between the protrusion 32 and the ball. Even if the clamping forces at both ends of the brush body 3 are slightly asymmetrical, the protrusion 32 can automatically find the balance position under the guidance of the ball, further improving the rotational stability.

[0043] Furthermore, such as Figure 5 As shown, there are four first balls 12a, which are arranged in a rectangular shape. An insertion area 114 is formed between two first balls 12a on the same inner sidewall of the groove 111. The protrusion 32 is inserted into the insertion area 114 and is in rolling connection with the first balls 12a in the insertion area 114.

[0044] In application, when the brush body 3 is inserted, the protrusion 32 on the outer periphery of the contact section 31 enters the groove 111. Since there are two first balls 12a on each inner sidewall of the groove 111, the four balls are arranged in a rectangular shape. The gap between the two first balls 12a on the same inner sidewall is the insertion area 114. The protrusion 32 is inserted into the insertion area 114, so that the two sides of the protrusion 32 form rolling contact with the two first balls 12a on the same sidewall and the two first balls 12a on the opposite sidewall, respectively. In this way, the protrusion 32 is confined within the rectangular space enclosed by the four balls, and cannot move radially or deflect. Through this rectangular distribution and insertion area 114 structure, By combining the four balls, the problem of possible torsion or axial tilting of the protrusion 32 when there are only two symmetrical balls is solved. After the four balls are distributed in a rectangular shape, the two sides of the protrusion 32 are supported by two points, forming a stable rectangular constraint frame. This constraint frame restricts the movement of the protrusion 32 from four directions at the same time, so that the protrusion 32 cannot rotate around any axis, thus being completely constrained within the insertion area 114. Under the action of the above structure, the ability of the brush body 3 to maintain its posture within the restriction area 112 is greatly improved. Even when subjected to a large rotational driving force or axial impact force, the protrusion 32 remains stable and does not tilt. The axis of the brush body 3 always coincides with the theoretical center line, thereby improving the repeatability and reliability of optical detection.

[0045] Furthermore, the presence of the insertion area 114 enables the protrusion 32 to have an automatic guiding function during insertion. The operator can slide the protrusion 32 between the four balls without precise alignment, reducing the difficulty of clamping. At the same time, the four balls evenly distribute the radial and axial forces transmitted by the protrusion 32, reducing the load on individual balls and significantly improving the wear resistance and lifespan of the overall tooling. In addition, when the brush body 3 rotates, the protrusion 32 rolls simultaneously with the four balls in the insertion area 114, forming a rolling support effect similar to a bearing, further reducing rotational friction and heat generation, making high-speed detection possible.

[0046] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optical inspection device, characterized in that, The optical detection device includes a rotating part (1) and a pushing part (2), and a rotatable brush body (3) is provided between the rotating part (1) and the pushing part (2). The rotating part (1) includes a support base (11) and a limiting member (12). A limiting area (112) is formed on the support base (11). The limiting member (12) is disposed on the support base (11) along a first direction and is located within the limiting area (112). The brush body (3) is provided with an abutting section (31) at one end near the support base (11). The abutting section (31) is distributed in the limiting area (112) along a second direction and abuts against the limiting member (12). When the limiting member (12) contacts the abutting section (31), the pushing part (2) pushes the brush body (3) toward the rotating part (1). The brush body (3) can only move along the second direction.

2. The optical inspection device according to claim 1, characterized in that, The support base (11) has a groove (111) and the restriction area (112) is located in the groove (111). The abutment section (31) is in contact with the bottom wall of the groove (111). The restriction member (12) consists of two retractable first balls (12a). The first balls (12a) are symmetrically arranged on the inner side wall of the groove (111). The first balls (12a) are in rolling connection with the outer peripheral surface of the abutment section (31). When the abutment section (31) is in contact with the first balls (12a) and the bottom wall of the groove (111) respectively, the brush body (3) can only move in the second direction.

3. The optical inspection device according to claim 2, characterized in that, A receiving groove (113) is provided on the inner wall of the groove (111) corresponding to the position of the first ball (12a). The receiving groove (113) is connected to the first ball (12a) by a spring (13). The first ball (12a) extends from the receiving groove (113) into the restricted area (112). The length of the first ball (12a) inside the restricted area (112) is less than the length of the first ball (12a) inside the receiving groove (113).

4. The optical inspection device according to claim 2, characterized in that, The bottom wall of the groove (111) is provided with a rolling second ball (14), which is located in the restricted area (112) and rolls in contact with the abutment section (31).

5. The optical inspection device according to claim 4, characterized in that, A protrusion (32) is provided on the outer periphery of the abutment section (31), and the first ball (12a) and the second ball (14) are staggered and connected to the two sides of the protrusion (32) respectively.

6. The optical inspection device according to claim 5, characterized in that, The number of the first ball bearings (12a) is four, and they are arranged in a rectangular shape. An insertion area (114) is formed between two first ball bearings (12a) on the same inner sidewall of the groove (111). The protrusion (32) is inserted into the insertion area (114), and the protrusion (32) is in rolling connection with the first ball bearings (12a) in the insertion area (114).

7. The optical inspection device according to claim 1, characterized in that, The pushing part (2) includes a cylinder (21) and a push rod (22). The output shaft of the cylinder (21) is connected to the push rod (22). The extension of the output shaft of the cylinder (21) causes the push rod (22) to move toward the brush body (3) and clamp the brush body (3) axially with the rotating section of the rotating part (1).

8. The optical inspection device according to claim 7, characterized in that, The rotating part (1) also includes a motor (15), the output shaft of which contacts the abutment section (31) near the support base (11) and cooperates with the push rod (22) to axially clamp the brush body (3).

9. The optical inspection device according to claim 1, characterized in that, The optical inspection device also includes an inspection head (4), which moves toward the brush body (3) in a second direction and is used to inspect the outer peripheral surface of the brush body (3).

10. The optical inspection device according to claim 9, characterized in that, The rotating part (1) and the pushing part (2) are arranged on the workbench. A linear module (5) is arranged on the workbench at the position corresponding to the brush body (3). The detection head (4) is arranged on the linear module (5).

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