Crack detection device

Abstract

The utility model relates to the technical field of workpiece damage detection, and provides a crack detection device which is characterized in that a platform is provided with a placement position and a detection position along a first direction; the supporting plate can move back and forth between a placement position and a detection position, the correction assembly is installed at the placement position and comprises a plurality of clamping pieces, and the multiple clamping pieces are used for centering a workpiece located on the supporting plate; an image recognition unit of the detection assembly is fixed to the detection position and located on one side of the second direction of the transfer assembly, and an ultrasonic detection unit can move in the first direction, the second direction and the third direction relative to the platform through an adjusting frame. Thus, the workpiece can be always placed in the middle through the correction assembly, the abrasion degree of the workpiece is obtained through the image recognition unit, the crack and damage information in the workpiece is obtained through the ultrasonic detection unit, and therefore comprehensive detection of the workpiece from inside to outside can be achieved; and through automatic setting, the working efficiency and the consistency of working standards can be improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece damage detection technology, and in particular to a crack detection device. Background Technology

[0002] In the field of mechanical engineering, especially in tobacco machinery, the copper busbar chain of a shredder is a key component. Its main function is to play a crucial role in continuously feeding material into the shredder's blades and performing pre-compaction. Currently, mainstream shredder models, such as the KT2 and Tobspin shredders, generally adopt an overlapping copper busbar chain structure. However, after prolonged operation, this type of copper busbar chain is prone to significant wear, deformation, and fatigue cracks and internal damage that are difficult to observe with the naked eye due to uneven stress and frictional corrosion.

[0003] The existing technologies in this field have the following main problems: First, traditional manual inspection methods are difficult to accurately measure the degree of wear and detect minute cracks, which not only increases the risk of equipment operation interruption but may also lead to serious production accidents and equipment damage. Second, existing detection methods often require contact with the object being tested and the use of coupling agents, which not only increases the complexity and difficulty of the detection but may also cause additional damage to the object being tested.

[0004] Therefore, there is an urgent need for a crack detection device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a crack detection device that can perform non-contact detection of workpieces and can perform comprehensive detection of workpieces from the inside out, thereby improving work efficiency and the consistency of work standards.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Crack detection device, including:

[0008] The platform, along the first direction, has placement positions and detection positions;

[0009] The transfer assembly includes a support plate that is capable of reciprocating between the placement position and the detection position.

[0010] The correction component is installed at the placement position and includes clamping members. Multiple clamping members are provided, and the multiple clamping members can move towards or away from each other to center the workpiece on the support plate.

[0011] The detection assembly includes an adjustment frame, an image recognition unit, and an ultrasonic detection unit. The image recognition unit is fixed to the detection position and located on one side of the second direction of the transfer assembly. The adjustment frame is mounted on the platform, and the ultrasonic detection unit is mounted on the adjustment frame and can move relative to the platform along the first direction, the second direction, and a third direction via the adjustment frame.

[0012] The first direction, the second direction, and the third direction mentioned above are all perpendicular to each other.

[0013] As a preferred technical solution of the above-mentioned crack detection device, the above-mentioned transfer component further includes guide rods, a plurality of guide rods are arranged side by side along the second direction and are all fixed to the platform, the guide rods are parallel to the first direction, and the support plate is slidably connected to the guide rods.

[0014] As a preferred technical solution of the above-mentioned crack detection device, the above-mentioned transfer component also includes a motor, a driving gear, a driven gear and a transmission belt. The motor is fixed to the platform. The output end of the motor is coaxially fixed with the driving gear. The driven gear is rotatably connected to the platform. The driving gear and the driven gear are driven by the transmission belt. The support plate is fixed relative to the transmission belt.

[0015] As a preferred technical solution of the above-mentioned crack detection device, the above-mentioned transfer assembly further includes a first clamping plate and a second clamping plate. The first clamping plate is fixed to the support plate, the second clamping plate is fixed to the first clamping plate, and the transmission belt is clamped between the first clamping plate and the second clamping plate. One of the first clamping plate and the second clamping plate is provided with a tooth for engaging with the transmission belt.

[0016] As a preferred technical solution of the above-mentioned crack detection device, the above-mentioned correction component further includes a linear drive mechanism, a first rack, a transmission wheel and a second rack, and an even number of the above-mentioned clamping members are arranged along the second direction. The output end of the above-mentioned linear drive mechanism is fixedly connected to the first rack, and the first rack and the second rack are driven by the transmission wheel. The two above-mentioned clamping members are respectively fixed to the first rack and the second rack.

[0017] As a preferred technical solution of the above-mentioned crack detection device, the output end of the linear drive mechanism is provided with a locking block, and the first rack and one of the clamping members are provided with a locking groove along the first direction, and the locking block is inserted into the two locking grooves.

[0018] As a preferred technical solution of the above-mentioned crack detection device, the adjustment frame includes a first guide rail, a second guide rail and a third guide rail. The first guide rail is fixed to the platform. The second guide rail and the third guide rail can move relative to the first guide rail along the second direction. The third guide rail can move relative to the second guide rail along the first direction. The ultrasonic detection unit can move relative to the third guide rail along the third direction.

[0019] As a preferred technical solution of the above-mentioned crack detection device, the adjustment frame further includes a connecting member, which includes a third slider and a first support. The third slider is slidably connected to the third guide rail, and the first support is hinged to the third slider through a first hinge shaft. The first hinge shaft is parallel to the first direction, and the ultrasonic detection unit is installed on the first support.

[0020] As a preferred technical solution of the above-mentioned crack detection device, the connecting member further includes a second support, which is hinged to the first support via a second hinge shaft. The second hinge shaft is parallel to the third direction, and the ultrasonic detection unit is installed on the second support and located on the eccentric side of the second hinge shaft.

[0021] As a preferred technical solution of the above-mentioned crack detection device, the end face of the support plate is detachably connected to a placement plate, the workpiece is placed on the placement plate, and the placement plate is provided with a receiving groove for receiving impurities falling from the workpiece.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a crack detection device, including a platform, a transfer assembly, a calibration assembly, and a detection assembly. The platform has a placement position and a detection position along a first direction. The transfer assembly includes a support plate that can reciprocate between the placement position and the detection position. The calibration assembly is installed at the placement position and includes multiple clamping members that can move towards or away from each other to center a workpiece on the support plate. The detection assembly includes an adjustment frame, an image recognition unit, and an ultrasonic detection unit. The image recognition unit is fixed at the detection position and located on one side of the transfer assembly along a second direction. The adjustment frame is installed on the platform, and the ultrasonic detection unit is installed on the adjustment frame and can move relative to the platform along the first, second, and third directions via the adjustment frame. The first, second, and third directions are perpendicular to each other.

[0024] The support plate is initially positioned at the placement position, and the clamping components are initially positioned at the edge of the support plate. Upon initial use, the workpiece is placed on the support plate, and the clamping components of the calibration assembly move towards each other, pushing the workpiece to the center of the support plate, thus centering the workpiece. Subsequently, the clamping components reset, and the support plate moves from the placement position to the detection position, located below the ultrasonic detection unit. The ultrasonic detection unit can change its spatial position via an adjustment frame, allowing it to perform a comprehensive scan of the workpiece and acquire information on cracks and damage within it. An image recognition unit is installed at the detection position, located on one side of the transfer assembly in the second direction. As the workpiece moves along the first direction with the support plate, the workpiece and the image recognition unit move relative to each other. The image recognition unit acquires a contour image of the workpiece, which is then compared with a standard model of the workpiece to determine the degree of wear.

[0025] In this way, the workpiece is always centered by the correction component, the wear degree of the workpiece is obtained by the image recognition unit, and the crack and damage information inside the workpiece is obtained by the ultrasonic detection unit. Thus, both the image recognition unit and the ultrasonic detection unit can perform non-contact inspection of the workpiece and can achieve comprehensive inspection of the workpiece from the inside out. The automated settings can improve work efficiency and the consistency of work standards. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the crack detection device provided in this embodiment of the utility model;

[0028] Figure 2 This is a front view of the crack detection device provided in this embodiment of the utility model;

[0029] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0030] Figure 4 This is a top view of the transfer component provided in this embodiment of the utility model;

[0031] Figure 5 This is a bottom view of the transfer component provided in this embodiment of the utility model;

[0032] Figure 6 yes Figure 5Sectional view at point BB;

[0033] Figure 7 This is an assembly diagram of the adjustment frame and the ultrasonic detection unit provided in this embodiment of the utility model;

[0034] Figure 8 This is a front view of the adjustment frame provided in this embodiment of the utility model;

[0035] Figure 9 This is a side view of the adjustment frame provided in an embodiment of the present utility model;

[0036] Figure 10 This is a bottom view of the adjustment frame provided in this embodiment of the utility model.

[0037] In the picture:

[0038] X, first direction; Y, second direction; Z, third direction;

[0039] 1. Crack detection device; 2. Workpiece;

[0040] 100. Platform; 110. Placement position; 120. Detection position;

[0041] 200. Transfer assembly; 210. Support plate; 220. Guide rod; 230. Motor; 240. Drive gear; 250. Driven gear; 260. Drive belt; 271. Second clamp; 280. Placement plate; 281. Receiving groove; 291. Motor mount; 292. Gear mounting base;

[0042] 300, Correction assembly; 310, Clamping member; 311, First clamping member; 312, Second clamping member; 320, Linear drive mechanism; 321, Locking block; 330, First rack; 340, Second rack;

[0043] 400. Detection component; 410. Adjustment frame; 411. First guide rail; 4111. First drive component; 4112. First slide rod; 4113. First threaded rod; 4114. First slider; 412. Second guide rail; 4121. Second drive component; 4122. Second slide rod; 4123. Second threaded rod; 4124. Second slider; 413. Third guide rail; 4131. Third drive component; 4132. Third slide rod; 4133. Third threaded rod; 414. Connector; 4141. Third slider; 4142. First support; 4143. Second support; 420. Image recognition unit; 430. Ultrasonic detection unit. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] like Figures 1 to 10As shown, this utility model provides a crack detection device, including a platform 100, a transfer component 200, a calibration component 300, and a detection component 400. The platform 100 has a placement position 110 and a detection position 120 along the first direction X; the transfer component 200 includes a support plate 210, which can reciprocate between the placement position 110 and the detection position 120; the correction component 300 is installed at the placement position 110 and includes clamping members 310, of which multiple clamping members 310 are provided, and multiple clamping members 310 can move towards or away from each other to center the workpiece 2 on the support plate 210; the detection component 400 includes an adjustment frame 410, an image recognition unit 420 and an ultrasonic detection unit 430, the image recognition unit 420 is fixed to the detection position 120 and located on one side of the transfer component 200 in the second direction Y; the adjustment frame 410 is installed on the platform 100; the ultrasonic detection unit 430 is installed on the adjustment frame 410 and can move relative to the platform 100 along the first direction X, the second direction Y and the third direction Z through the adjustment frame 410; the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0049] For example, the first direction X is the first horizontal direction, the second direction Y is the second horizontal direction, and the third direction Z is the vertical direction.

[0050] The support plate 210 is initially positioned at the placement position 110, and the clamping member 310 is initially positioned at the edge of the support plate 210. Upon initial use, the workpiece 2 is placed on the support plate 210, and the clamping members 310 of the correction assembly 300 move towards each other, pushing the workpiece 2 to the center of the support plate 210, thus centering the workpiece 2. Subsequently, the clamping members 310 reset, and the support plate 210 moves from the placement position 110 to the detection position 120, located below the ultrasonic detection unit 430. The ultrasonic detection unit 430 can change its spatial position via the adjustment frame 410, enabling it to perform a comprehensive scan of the workpiece 2 and obtain information on cracks and damage within it. The image recognition unit 420 is installed at the detection position 120 and is located on one side of the second direction Y of the transfer assembly 200. When the workpiece 2 is carried by the support plate 210 and moves along the first direction X, the workpiece 2 and the image recognition unit 420 move relative to each other. The image recognition unit 420 can acquire the contour image of the workpiece 2 and compare it with the standard model of the workpiece 2 to determine the wear degree of the workpiece 2.

[0051] In this way, the correction component 300 ensures that the workpiece 2 is always placed in the center. The image recognition unit 420 obtains the wear degree of the workpiece 2, and the ultrasonic detection unit 430 obtains the crack and damage information inside the workpiece 2. Thus, both the image recognition unit 420 and the ultrasonic detection unit 430 can perform non-contact detection on the workpiece 2 and can perform comprehensive detection of the workpiece 2 from the inside out. The automated settings can improve work efficiency and the consistency of work standards.

[0052] Optionally, the transfer assembly 200 also includes guide rods 220. Multiple guide rods 220 are arranged side-by-side along the second direction Y and are all fixed to the platform 100. The guide rods 220 are parallel to the first direction X, and the support plate 210 is slidably connected to the guide rods 220. Thus, the guide rods 220 can regulate the movement trajectory of the support plate 210.

[0053] Optionally, the transfer assembly 200 also includes a motor 230, a drive gear 240, a driven gear 250, and a transmission belt 260. The motor 230 is fixed to the platform 100, and the output end of the motor 230 is coaxially fixed with the drive gear 240. The driven gear 250 is rotatably connected to the platform 100. The drive gear 240 and the driven gear 250 are driven by the transmission belt 260. The support plate 210 is fixed relative to the transmission belt 260.

[0054] Specifically, the motor 230 is fixed to the platform 100 via the motor mount 291. A drive gear 240 is fixedly mounted on the output end of the motor 230. The axis of the drive gear 240 is parallel to the second direction Y. A driven gear 250 is fixed to the platform 100 via a gear mounting base 292, spaced apart from the drive gear 240 in the first direction X. The driven gear 250 is rotatably connected to the gear mounting base 292, and its axis is parallel to the axis of the drive gear 240. The transmission belt 260 has protruding teeth that mesh with both the driven gear and the drive gear 240. The drive gear 240 drives the driven gear 250 to rotate via the transmission belt 260. The support plate 210 is relatively fixed to the transmission belt 260. When the drive gear 240 rotates, the support plate 210 can reciprocate along the transmission belt in the first direction X, moving back and forth between the placement position 110 and the detection position 120. When the motor 230 stops, the support plate 210 also remains relatively fixed to the platform 100 in the first direction X.

[0055] Specifically, the transfer assembly 200 also includes a first clamping plate and a second clamping plate 271. The first clamping plate is fixed to the support plate 210, and the second clamping plate 271 is fixed to the first clamping plate. The transmission belt 260 is clamped between the first clamping plate and the second clamping plate 271. One of the first clamping plate and the second clamping plate 271 is provided with protruding teeth for engaging with the transmission belt 260. This facilitates the assembly between the support plate 210 and the transmission belt.

[0056] Optionally, the correction assembly 300 further includes a linear drive mechanism 320, a first rack 330, a transmission wheel, and a second rack 340. An even number of clamping members 310 are arranged along the second direction Y. The output end of the linear drive mechanism 320 is fixedly connected to the first rack 330. The first rack 330 and the second rack 340 are driven by the transmission wheel. The two clamping members 310 are fixed to the first rack 330 and the second rack 340, respectively.

[0057] For example, two clamping members 310 are provided along the second direction Y, respectively referred to as the first clamping member 311 and the second clamping member 312. The first clamping member 311 and the first rack 330 are both fixed to the output end of the linear drive mechanism 320 and can reciprocate along the first direction X with the output end of the linear drive mechanism 320. The first rack 330 extends along the first direction X and is driven by the transmission wheel to the second rack 340. The transmission wheel is rotatably set on the platform 100, and the axis of the transmission wheel is parallel to the first direction X. The second rack 340 is fixed with the second clamping member 312. When the first rack 330 moves in the positive direction of the second direction Y, the second rack 340 moves in the opposite direction of the second direction Y. In this way, the first clamping member 311 and the second clamping member 312 can always move in opposite directions of movement in the second direction Y, so as to achieve synchronous mutual approach or mutual distance, and concentrate the workpiece 2 towards the middle of the two.

[0058] Optionally, the output end of the linear drive mechanism 320 is provided with a locking block 321. The first rack 330 and one of the clamping members 310 are both provided with a locking slot along the first direction X, and the locking block 321 is inserted into the two locking slots.

[0059] Optionally, the adjustment frame 410 includes a first guide rail 411, a second guide rail 412, and a third guide rail 413. The first guide rail 411 is fixed to the platform 100. The second guide rail 412 and the third guide rail 413 can move relative to the first guide rail 411 along the second direction Y. The third guide rail 413 can move relative to the second guide rail 412 along the first direction X. The ultrasonic detection unit 430 can move relative to the third guide rail 413 along the third direction Z.

[0060] Specifically, the first guide rail 411 is equipped with a first driving member 4111, a first sliding rod 4112, a first slider 4114, and a first threaded rod 4113. The axis of the first sliding rod 4112 and the axis of the first threaded rod 4113 are both parallel to the second direction Y. The first sliding rod 4112 is fixed to the platform 100. The first driving member 4111 is mounted on the platform 100. The output end of the first driving member 4111 is connected to the first threaded rod 4113 via a coupling. The first slider 4114 is slidably sleeved on the first sliding rod 4112 and threadedly connected to the first threaded rod 4113. The second guide rail 412 is fixed to the first slider 4114. When the first driving member 4111 is started, the first threaded rod 4113 rotates, causing the first slider 4114 to move along the second direction Y with the second guide rail 412. The second guide rail 412 is equipped with a second drive member 4121, a second slide rod 4122, a second slider 4124, and a second threaded rod 4123. The axes of the second slide rod 4122 and the second threaded rod 4123 are both parallel to the first direction X. The second slide rod 4122 is fixed relative to the first slider 4114. The second drive member 4121 is mounted on the first slider 4114. The output end of the second drive member 4121 is connected to the second threaded rod 4123 via a coupling. The second slider 4124 is slidably sleeved on the second slide rod 4122 and threadedly connected to the second threaded rod 4123. The third guide rail 413 is fixed to the second slider 4124. When the second drive member 4121 is activated, the second threaded rod 4123 rotates, causing the second slider 4124 to move along the first direction X with the third guide rail 413. The third guide rail 413 is equipped with a third drive component 4131, a third slide rod 4132, a third threaded rod 4133, and a third slider 4141. The axis of the third threaded rod 4133 and the axis of the third slide rod 4132 are both parallel to the third direction Z. The third slide rod 4132 is fixed to the second slider 4124. The third drive component 4131 is mounted on the second slider 4124. The output end of the third drive component 4131 is connected to the third threaded rod 4133 via a coupling. The third slider 4141 is slidably sleeved on the third slide rod 4132 and threadedly connected to the third threaded rod 4133. The ultrasonic detection unit 430 is mounted on the third slider 4141. When the third drive component 4131 is activated, the third threaded rod 4133 rotates, causing the third slider 4141 to move the ultrasonic detection unit 430 along the third direction Z. Thus, the position of the ultrasonic detection unit 430 in the first direction X, the second direction Y, and the third direction Z can be adjusted by the adjustment bracket 410.

[0061] Optionally, the adjustment frame 410 further includes a connector 414, which includes a third slider 4141 and a first support 4142. The third slider 4141 is slidably connected to the third guide rail 413, and the first support 4142 is hinged to the third slider 4141 via a first hinge axis parallel to the first direction X. The ultrasonic detection unit 430 is mounted on the first support 4142. This allows the ultrasonic detection unit 430 to rotate around the first direction X, enabling the ultrasonic detection unit 430 to detect various angles of the workpiece 2, avoiding obstruction between different parts of the workpiece 2 due to its complex structure.

[0062] Optionally, the connector 414 further includes a second support 4143, which is hinged to the first support 4142 via a second hinge axis parallel to the third direction Z. The ultrasonic detection unit 430 is mounted on the second support 4143 and located on the eccentric side of the second hinge axis. This allows the ultrasonic detection unit 430 to rotate around the third direction Z, enabling the ultrasonic detection unit 430 to detect various angles of the workpiece 2 and avoiding obstruction between different parts of the workpiece 2 due to its complex structure.

[0063] Optionally, the end face of the support plate 210 can be detachably connected to a placement plate 280, on which the workpiece 2 is placed. The placement plate 280 has a receiving groove 281 for receiving impurities that fall from the workpiece 2.

[0064] For example, the placement plate 280 is installed on the upper end face of the support plate 210. The placement plate 280 has a receiving groove 281 with an opening formed on the upper end face of the placement plate 280. The workpiece 2 is placed on the placement plate 280. Dust, liquid and other impurities carried on the workpiece 2 fall down along the outer wall of the workpiece 2 into the receiving groove under the action of gravity for collection. After a certain number of inspections are completed, the placement plate 280 is removed for cleaning.

[0065] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A crack detection device, characterized in that, include: Platform (100), wherein the platform (100) is provided with a placement position (110) and a detection position (120) along a first direction (X); A transfer assembly (200) includes a support plate (210) that is reciprocating between the placement position (110) and the detection position (120). A correction component (300) is installed in the placement position (110) and includes a clamping member (310). Multiple clamping members (310) are provided and can move towards or away from each other to center the workpiece (2) on the support plate (210). The detection component (400) includes an adjustment frame (410), an image recognition unit (420), and an ultrasonic detection unit (430). The image recognition unit (420) is fixed to the detection position (120) and located on one side of the transfer component (200) in the second direction (Y). The adjustment frame (410) is mounted on the platform (100), and the ultrasonic detection unit (430) is mounted on the adjustment frame (410) and can move relative to the platform (100) in the first direction (X), the second direction (Y), and the third direction (Z) through the adjustment frame (410). The first direction (X), the second direction (Y), and the third direction (Z) are perpendicular to each other.

2. The crack detection device according to claim 1, characterized in that, The transfer assembly (200) further includes guide rods (220), a plurality of guide rods (220) are arranged side by side along the second direction (Y) and all are fixed to the platform (100), the guide rods (220) are parallel to the first direction (X), and the support plate (210) is slidably connected to the guide rods (220).

3. The crack detection device according to claim 2, characterized in that, The transfer assembly (200) further includes a motor (230), a drive gear (240), a driven gear (250), and a transmission belt (260). The motor (230) is fixed to the platform (100). The output end of the motor (230) is coaxially fixed with the drive gear (240). The driven gear (250) is rotatably connected to the platform (100). The drive gear (240) and the driven gear (250) are driven by the transmission belt (260). The support plate (210) is fixed relative to the transmission belt (260).

4. The crack detection device according to claim 3, characterized in that, The transfer assembly (200) further includes a first clamp and a second clamp (271), the first clamp being fixed to the support plate (210), the second clamp (271) being fixed to the first clamp, and the transmission belt (260) being clamped between the first clamp and the second clamp (271). One of the first clamp and the second clamp (271) is provided with a tooth for engaging with the transmission belt (260).

5. The crack detection device according to claim 1, characterized in that, The correction assembly (300) further includes a linear drive mechanism (320), a first rack (330), a transmission wheel, and a second rack (340). An even number of clamping members (310) are arranged along the second direction (Y). The output end of the linear drive mechanism (320) is fixedly connected to the first rack (330). The first rack (330) and the second rack (340) are driven by the transmission wheel. The two clamping members (310) are fixed to the first rack (330) and the second rack (340) respectively.

6. The crack detection device according to claim 5, characterized in that, The output end of the linear drive mechanism (320) is provided with a locking block (321). The first rack (330) and one of the clamping members (310) are provided with a locking groove along the first direction (X). The locking block (321) is inserted into the two locking grooves.

7. The crack detection device according to claim 1, characterized in that, The adjustment frame (410) includes a first guide rail (411), a second guide rail (412), and a third guide rail (413). The first guide rail (411) is fixed to the platform (100). The second guide rail (412) and the third guide rail (413) are movable relative to the first guide rail (411) along the second direction (Y). The third guide rail (413) is movable relative to the second guide rail (412) along the first direction (X). The ultrasonic detection unit (430) is movable relative to the third guide rail (413) along the third direction (Z) via a connector (414).

8. The crack detection device according to claim 7, characterized in that, The connector (414) includes a third slider (4141) and a first support (4142). The third slider (4141) is slidably connected to the third guide rail (413). The first support (4142) is hinged to the third slider (4141) through a first hinge axis, which is parallel to the first direction (X). The ultrasonic detection unit (430) is mounted on the first support (4142).

9. The crack detection device according to claim 8, characterized in that, The connector (414) further includes a second support (4143), which is hinged to the first support (4142) via a second hinge axis. The second hinge axis is parallel to the third direction (Z). The ultrasonic detection unit (430) is mounted on the second support (4143) and located on the eccentric side of the second hinge axis.

10. The crack detection device according to any one of claims 1-9, characterized in that, The end face of the support plate (210) is detachably connected to a placement plate (280), the workpiece (2) is placed on the placement plate (280), and the placement plate (280) has a receiving groove (281) for receiving impurities falling from the workpiece (2).

Images