Transmission mechanism and detection equipment

Abstract

The invention discloses a transmission mechanism and detection equipment, and relates to the technical field of detection. The conveying mechanism comprises a supporting assembly and a driving structure, the supporting assembly comprises two supporting side plates arranged in the first direction in a spaced mode, a supporting rod is arranged between the two supporting side plates, and the sheet product is arranged on the two supporting side plates and the supporting rod in an erected mode; the driving structure is configured to drive the sheet product to move on the supporting assembly in the second direction, and an included angle is formed between the first direction and the second direction. The transmission mechanism can avoid the risk of falling of the lead frame caused by drooping of the central part.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a transmission mechanism and detection equipment. Background Art

[0002] The lead frame, as the chip carrier for integrated circuits, is a key structural component that uses bonding materials (gold, aluminum, or copper wire) to electrically connect the chip's internal circuit terminals to external leads, forming an electrical circuit. It also serves as a bridge connecting to external wires. To ensure the lead frame's yield, it is typically transported by a belt conveyor to an optical inspection system, where it is secured by a pressure plate and then inspected for defects.

[0003] However, due to the light and thin texture of the lead frame, its center part is very likely to sag due to its own weight during the belt line transmission process, which poses a risk of falling and affects the detection accuracy, resulting in a decrease in the yield rate. Summary of the Invention

[0004] The purpose of the present invention is to provide a transmission mechanism and a detection device that can avoid the risk of sheet products falling due to sagging of the center part.

[0005] To achieve this object, the present invention adopts the following technical solutions: A transmission mechanism for transmitting sheet products, comprising: A support assembly, the support assembly comprising two support side plates spaced apart along a first direction, a support rod disposed between the two support side plates, and the sheet product being placed on the two support side plates and the support rod; A driving structure is configured to drive the sheet product to move on the supporting assembly along a second direction, wherein the first direction and the second direction are arranged at an angle.

[0006] As an optional solution to the above-mentioned transmission mechanism, the transmission mechanism also includes an adsorption component, the adsorption component includes a suction cup, the suction cup is arranged between the two supporting side plates, the suction cup is configured to adsorb the sheet product, and the support rod is arranged at the front end and / or rear end of the suction cup.

[0007] As an optional solution of the above-mentioned transmission mechanism, the adsorption assembly further includes a fixed seat and a first lifting drive member, the first lifting drive member is arranged on the fixed seat, and the first lifting drive member is configured to drive the suction cup to rise and fall.

[0008] As an optional solution to the above-mentioned transmission mechanism, the driving structure includes a driving component, a feeding component and a receiving component. The driving component is configured to drive the feeding component and the receiving component to move along the second direction, the feeding component is configured to drive the sheet product to move onto the suction cup, and the receiving component is configured to drive the sheet product away from the suction cup.

[0009] As an optional solution of the above-mentioned transmission mechanism, the feeding assembly includes two clamping jaws that can move closer to or farther away from each other, and the two clamping jaws can clamp the sheet product.

[0010] As an optional solution to the above-mentioned transmission mechanism, the material receiving assembly includes a pushing block, the lower surface of which is provided with an arc-shaped groove. The pushing block can move along the second direction to push the sheet product, and the support rod portion is located in the arc-shaped groove and slides in contact with the arc-shaped groove.

[0011] As an optional solution for the above-mentioned transmission mechanism, the material receiving assembly also includes a connecting seat and an elastic member, the connecting seat is transmission-connected to the driving assembly, the pushing block is slidingly arranged on the connecting seat along a first direction, the elastic member is arranged between the pushing block and the connecting seat, and the elastic member is configured to drive the pushing block to move toward a direction close to the sheet product.

[0012] As an optional solution for the above-mentioned transmission mechanism, the material receiving component also includes a second sensing member and a second sensor, one of the second sensing member and the second sensor is arranged on the connecting seat, and the other of the second sensing member and the second sensor is arranged on the pushing block, and when the pushing block moves to a preset position relative to the connecting seat, the second sensor can sense the second sensing member.

[0013] As an optional solution of the above-mentioned transmission mechanism, the connecting seat is capable of moving along the first direction.

[0014] A detection device includes the transmission mechanism, a detection component and a three-axis motion mechanism, wherein the three-axis motion mechanism is configured to drive the detection component to move, and the transmission mechanism is arranged below the detection component.

[0015] Beneficial effects of the present invention: The present invention provides a transmission mechanism and testing equipment. In the transmission mechanism, a support assembly is used to support a lead frame. The two ends of the lead frame along a first direction are respectively overlapped on the supporting side plates on the corresponding sides. The central portion of the lead frame is supported by a support rod, which can prevent the risk of the lead frame falling due to sagging of the central portion. The drive structure can drive the lead frame to move on the support assembly, so that the lead frame can be moved to a suitable position for testing, and after testing, the lead frame can be driven away from the testing position.

[0016] The inspection equipment can detect defects such as mis-punching, missed punching, dirt, oxidation, burrs, crushing, deformation, plating defects, and plating deviation of lead frames through inspection components. It can detect and mark lead frames with problems, thereby improving the yield of lead frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a detection device provided by an embodiment of the present invention.

[0018] Figure 2 It is a structural schematic diagram of a transmission mechanism provided by an embodiment of the present invention.

[0019] Figure 3 It is a structural schematic diagram of an adsorption component provided by an embodiment of the present invention.

[0020] Figure 4 It is a structural schematic diagram of a feeding assembly provided by an embodiment of the present invention.

[0021] Figure 5 This is a first structural schematic diagram of a material receiving assembly provided by an embodiment of the present invention.

[0022] Figure 6 This is a second structural schematic diagram of a material receiving assembly provided by an embodiment of the present invention.

[0023] In the picture: 100, base; 200, three-axis motion mechanism; 300, detection component; 400, code scanning mechanism; 1. Support assembly; 11. Support side plate; 12. Support rod; 13. Screw rod; 14. Servo motor; 2. Feeding assembly; 21. Second lifting drive member; 22. Connecting member; 23. Clamping drive member; 231. Clamping finger; 24. Clamping claw; 241. First connecting portion; 242. First clamping portion; 243. Second connecting portion; 244. Second clamping portion; 3. Material receiving assembly; 31. Material pushing block; 311. Arc groove; 32. Third lifting drive member; 33. Connecting seat; 331. Strip hole; 34. Elastic member; 35. Second sensing member; 36. Second sensor; 37. Guide rail; 38. Guide rod; 39. Retaining wall; 4. Adsorption assembly; 41. Suction cup; 42. First lifting drive member; 43. Fixing seat; 44. Connecting block; 45. First sensor; 451. Detection position sensor A; 452. Home position sensor; 453. Detection position sensor B; 46. First sensing member; 5. Drive assembly; 51. Linear guide rail; 52. Slider; 53. Buffer block. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0026] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or removable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0027] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0029] During the production and processing of lead frames, defects such as mis-punching, missed punching, dirt, oxidation, burrs, crushing, deformation, plating omission, and plating deviation are inevitable due to various factors. Therefore, before application, the lead frame is usually transported to the bottom of the optical inspection mechanism using a belt line to fix it on a pressure plate, and then defect detection is carried out.

[0030] This embodiment provides a detection device for detecting sheet products. Figure 1 As shown, the inspection device includes a base 100, an inspection assembly 300, a three-axis motion mechanism 200, and a transmission mechanism. The three-axis motion mechanism 200 and the transmission mechanism are both arranged on the base 100. The three-axis motion mechanism 200 is configured to drive the inspection assembly 300 to move, and the transmission mechanism is arranged below the inspection assembly 300. Driven by the three-axis motion mechanism 200, the inspection assembly 300 can move in three-dimensional space, so that the inspection assembly 300 can move to the optimal position for inspecting the sheet product. The transmission mechanism can take over the sheet product from the previous process and move it below the inspection assembly 300 for inspection. After the inspection is completed, the transmission mechanism can move the sheet product to the next process, achieving a high degree of automation and improving efficiency.

[0031] In this embodiment, the detection component 300 can be a camera or a CCD (Charge Coupled Device) camera, which can effectively detect surface defects of sheet products through visual inspection with high efficiency and accuracy.

[0032] Preferably, the inspection device further includes a code scanning mechanism 400. Each sheet product is provided with a label corresponding to the product information. By scanning the label, the code scanning mechanism 400 can integrate the inspection results with the corresponding product information, thereby recording the information of unqualified sheet products for easy removal. The label can be a QR code, a barcode, or other coded graphic capable of recording information.

[0033] The lead frame, as the chip carrier for integrated circuits, is a key structural component that uses bonding materials (gold, aluminum, or copper wire) to electrically connect the chip's internal circuit terminals to external leads, forming an electrical circuit. It also serves as a bridge for connecting to external wires. In this embodiment, a lead frame is used as an example of a chip product.

[0034] To ensure the yield rate of lead frames, they are typically transported by conveyor belts to an optical inspection system where they are secured by a clamp before defect inspection. However, due to their light weight, the center of the lead frame is prone to sagging due to its own weight during conveyance, creating a risk of it falling. This can also affect inspection accuracy and reduce the yield rate.

[0035] To solve the above problems, this embodiment also provides a transmission mechanism for transmitting the lead frame. Figure 1 and Figure 2 As shown, the transmission mechanism includes a support assembly 1 and a driving structure. The support assembly 1 includes two support side plates 11 spaced apart along a first direction (Y direction in the figure), a support rod 12 is provided between the two support side plates 11, and the lead frame is mounted on the two support side plates 11 and the support rod 12; the driving structure is configured to drive the lead frame to move along a second direction (X direction in the figure) on the support assembly 1, and the first direction and the second direction are arranged at an angle.

[0036] In the transmission mechanism, the support assembly 1 is used to support the lead frame, and the two ends of the lead frame along the first direction are respectively overlapped on the support side plates 11 on the corresponding sides. The center part of the lead frame is supported by the support rod 12, which can avoid the risk of the lead frame falling due to sagging of the center part. The driving structure can drive the lead frame to move on the support assembly 1, so as to move the lead frame to a suitable position for testing, and drive the lead frame away from the testing position after the testing is completed.

[0037] The detection equipment can detect defects such as mis-punching, missed punching, dirt, oxidation, burrs, crushing, deformation, missed plating, and plating deviation of the lead frame through the detection component 300. It can detect and mark the lead frame with problems, thereby improving the yield of the lead frame.

[0038] Preferably, the first direction and the second direction are perpendicular to each other and are both horizontal directions.

[0039] In this embodiment, the distance between the two support side plates 11 is adjustable. That is, the distance between the two support side plates 11 can be adjusted based on the size of the lead frame to be transported. When the size of the lead frame changes, the distance between the two support side plates 11 is adjusted accordingly, so that the distance between the two support side plates 11 is smaller than the size of the lead frame in the first direction. This allows the transport mechanism to transport lead frames of different sizes without causing them to drop or jam, thereby improving the applicability of the inspection device.

[0040] In this embodiment, an adjustment slide rail is provided on the base 100, one of the two supporting side panels 11 is provided on the base 100, and the other is provided on the adjustment slide rail. The distance between the two supporting side panels 11 can be adjusted by sliding the supporting side panel 11 along the adjustment slide rail.

[0041] like Figure 1 As shown, preferably, a screw rod 13 is rotatably provided on the base 100, and a support side plate 11 provided on the adjustment slide rail is provided with a screw nut. The screw rod 13 is passed through the support side plate 11 and is threadedly connected to the screw nut. The servo motor 14 is used to drive the screw rod 13 to rotate, so that the distance between the two support side plates 11 can be quickly and accurately adjusted.

[0042] like Figure 2 and Figure 3 As shown, in this embodiment, the transfer mechanism further includes a suction assembly 4, which includes a suction cup 41. The suction cup 41 is disposed between the two supporting side plates 11 and is configured to suction the lead frame. When inspecting the lead frame, it is necessary to ensure the stability of the lead frame. Using the suction cup 41 to suction the lead frame not only allows the lead frame to rest stably on the suction cup 41 but also ensures that the lead frame is flat, thus avoiding minor deformation caused by other fixing methods that may affect the inspection results due to pressure on the lead frame.

[0043] It is worth noting that to prevent the lead frame from falling before being moved onto the suction assembly 4, support rods 12 are provided at the front end of the suction cup 41. Similarly, to prevent the lead frame from falling before being moved onto the suction assembly 4, support rods 12 can also be provided at the rear end of the suction cup 41. In this embodiment, support rods 12 are provided at both the front and rear ends of the suction cup 41 to ensure that the lead frame does not slip before or after testing.

[0044] Preferably, the suction assembly 4 further includes a fixed seat 43 and a first lifting drive 42. The fixed seat 43 is fixedly mounted on the base 100. The first lifting drive 42 is mounted on the fixed seat 43. The first lifting drive 42 is configured to drive the suction cup 41 to move upward and downward. This structure ensures that before the lead frame moves above the suction cup 41, the suction cup 41 is slightly lower than the lead frame, preventing the lead frame from colliding with the suction cup 41 or interference between the driving structure and the suction cup 41. Furthermore, the suction cup 41 can be raised during inspection to elevate the lead frame, ensuring accurate inspection results.

[0045] In this embodiment, the first lifting drive 42 is a servo motor. The suction cup 41 is connected to the output terminal of the servo motor via a connecting block 44. The servo motor can drive the suction cup 41 to move up and down through the connecting block 44. To detect the position of the suction cup 41, a first sensing element 46 is provided on one of the connecting block 44 and the fixing base 43, and a first sensor 45 is provided on the other to control the highest and lowest positions of the suction cup 41.

[0046] like Figure 3 As shown, for example, the fixing seat 43 is provided with a first sensor 45, and the connecting block 44 is provided with a first sensing member 46. The first sensor 45 includes a detection position sensor A451 and a detection position sensor B453, and the detection position sensor A451 is located above the detection position sensor B453. The detection position sensor A451 and the detection position sensor B453 are respectively used to limit the stroke of the first sensing member 46. When the first sensing member 46 is sensed by the detection position sensor A451 or the detection position sensor B453, the first lifting drive member 42 stops driving the connecting block 44 to move.

[0047] Preferably, the first sensor 45 further includes an in-situ sensor 452, which is disposed between the detection position sensor A 451 and the detection position sensor B 453. It is worth noting that the lifting distance of the suction cup 41 is controlled by the first lifting drive 42. To improve accuracy, when the suction cup 41 descends, it must move to a position where the in-situ sensor 452 senses the first sensing element 46. This ensures that the suction cup 41 stops at the same height each time the first lifting drive 42 drives the first sensing element 46 to rise the same distance, thereby ensuring consistent lead frame position during lead frame inspection.

[0048] like Figure 2 As shown, in this embodiment, the driving structure includes a driving component 5, a feeding component 2 and a receiving component 3. The driving component 5 is configured to drive the feeding component 2 and the receiving component 3 to move along the second direction, the feeding component 2 is configured to drive the lead frame to move onto the suction cup 41, and the receiving component 3 is configured to drive the lead frame away from the suction cup 41.

[0049] The feeding assembly 2 is used to drive the lead frame before inspection to move onto the suction cup 41, and the receiving assembly 3 is used to drive the lead frame after inspection to leave the suction cup 41, so that the feeding assembly 2 and the receiving assembly 3 can both move independently. When the receiving assembly 3 drives the lead frame to leave the suction cup 41, the feeding assembly 2 can drive the next lead frame to move onto the suction cup 41, greatly improving the overall utilization rate and inspection efficiency.

[0050] Preferably, the drive assembly 5 includes a linear slide 51, on which two sliders 52 are disposed: one slider 52 is connected to the feed assembly 2, and the other slider 52 is connected to the receiving assembly 3. Placing the feed assembly 2 and the receiving assembly 3 on the same linear slide 51 simplifies the structure and improves efficiency. To prevent interference between the feed assembly 2 and the receiving assembly 3, at least one of the two sliders 52 is provided with a buffer block 53. When the two sliders 52 approach each other and the distance between them is small, the buffer block 53 is compressed to prevent collision between the feed assembly 2 and the receiving assembly 3.

[0051] like Figure 4 As shown, in this embodiment, the feeding assembly 2 includes a second lifting drive member 21, a connecting member 22 and a clamping drive member 23. The second lifting drive member 21 is transmission-connected to the drive assembly 5, that is, it is arranged on a slider 52. The second lifting drive member 21 can drive the connecting member 22 to rise and fall, so that the feeding assembly 2 can adjust its own height according to the position and thickness of the lead frame. The connecting member 22 is connected to the clamping drive member 23. The clamping drive member 23 can clamp the lead frame and pull the lead frame to move to the suction cup 41.

[0052] Generally speaking, in the structure of the transmission mechanism, the stroke of the feeding assembly 2 will not exceed the end of the supporting side plate 11, so the feeding assembly 2 needs to drive the lead frame to move at the front end of the lead frame, so clamping the lead frame to move is a suitable driving form.

[0053] Preferably, the clamping drive 23 is a clamping cylinder, which includes two clamping fingers 231 that can move closer to or farther away from each other. The two clamping fingers 231 are respectively connected to corresponding clamping jaws 24, so that the two clamping jaws 24 can move closer to or farther away from each other as needed to clamp the lead frame.

[0054] In this embodiment, one clamping jaw 24 includes a first connecting portion 241 and a first clamping portion 242 extending downward, and the other clamping jaw 24 includes a second connecting portion 243 and a second clamping portion 244 extending horizontally. The first connecting portion 241 is connected to the clamping finger 231 located above, and the second connecting portion 243 is connected to the clamping finger 231 located below. A clamping space opening in the horizontal direction is formed between the first clamping portion 242 and the second clamping portion 244, and the opening is toward the upstream of the transmission mechanism, so that the two clamping jaws 24 can clamp the lead frame from the front end of the lead frame.

[0055] Similarly, the travel of the receiving assembly 3 does not exceed the end of the supporting side plate 11, so the receiving assembly 3 needs to drive the lead frame to move at the rear end. To achieve this purpose, the receiving assembly 3 includes a pusher block 31 that can move in the second direction to push the lead frame.

[0056] like Figure 5 and Figure 6 As shown, the lower surface of the pusher block 31 is provided with an arcuate groove 311, and the support rod 12 is partially located within the arcuate groove 311 and slides against the arcuate groove 311. The provision of the arcuate groove 311 can, on the one hand, improve the stability of the pusher block 31 during movement, ensuring that the pusher block 31 does not wobble. On the other hand, it can also position the pusher block 31 partially below the lead frame, ensuring that the pusher block 31 abuts the lead frame with its front surface, ensuring that the pusher block 31 and the lead frame do not become detached.

[0057] It is worth noting that, in this embodiment, the receiving assembly 3 further includes a third lifting drive member 32 and a connecting seat 33. The connecting seat 33 is movable along a first direction and is disposed on the third lifting drive member 32. The pusher block 31 is disposed on the connecting seat 33. By moving the connecting seat 33 along the first direction, the arcuate groove 311 can be vertically aligned with the support rod 12. When the lead frame is inspected, the third lifting drive member 32 drives the connecting seat 33 upward, raising the pusher block 31 and moving it to the rear end of the lead frame. The third lifting drive member 32 then drives the connecting seat 33 downward, causing the pusher block 31 to descend until the inner wall of the arcuate groove 311 abuts the support rod 12, thereby pushing the lead frame off the suction cup 41.

[0058] Specifically, the third lift drive member 32 is a lift cylinder. The connecting base 33 defines a strip-shaped hole 331 extending in the first direction. A screw passes through the strip-shaped hole 331 and is threadedly connected to the piston of the lift cylinder, thereby securing the connecting base 33 to the piston. To adjust the position of the connecting base 33, simply loosen the screw to move the connecting base 33 in the first direction.

[0059] Preferably, the material receiving assembly 3 further includes an elastic member 34. The pusher block 31 is slidably disposed on the connecting seat 33 along a first direction. The elastic member 34 is disposed between the pusher block 31 and the connecting seat 33. The elastic member 34 is configured to drive the pusher block 31 toward the lead frame. In other words, when the pusher block 31 pushes the lead frame, the reaction force exerted by the lead frame on the pusher block 31 causes the pusher block 31 to compress the elastic member 34, thereby buffering the force exerted by the stacking block on the lead frame through the elastic member 34. As the material receiving assembly 3 moves, the force exerted by the stacking block on the lead frame gradually increases, thereby preventing the pusher block 31 from exerting excessive force on the lead frame, which could cause deformation of the lead frame's edges.

[0060] In this embodiment, the material receiving component 3 also includes a second sensing member 35 and a second sensor 36. One of the second sensing member 35 and the second sensor 36 is arranged on the connecting seat 33, and the other of the second sensing member 35 and the second sensor 36 is arranged on the pushing block 31. When the pushing block 31 moves to a preset position relative to the connecting seat 33, the second sensor 36 can sense the second sensing member 35.

[0061] As the compression of the elastic member 34 increases, the elastic force of the elastic member 34 also increases, which means that the pushing force of the pusher block 31 on the lead frame increases. To prevent deformation of the lead frame edge, when the pusher block 31 moves to a preset position relative to the connection base 33, the elastic force of the elastic member 34 reaches the maximum value that the lead frame can withstand. At this time, the second sensor 36 senses the second sensing element 35, the material receiving assembly 3 stops moving, and an alarm is triggered. The operator checks whether there is any problem with the transmission mechanism, such as the lead frame being stuck or excessive friction between the pusher block 31 and the support member, to prevent deformation of the lead frame.

[0062] Preferably, a guide rail 37 is provided on the connecting seat 33, and the pusher block 31 is slidably provided on the guide rail 37. The guide rail 37 can guide the pusher block 31 so that the pusher block 31 can only move along the second direction relative to the connecting seat 33.

[0063] In this embodiment, the pusher block 31 is connected to a guide rod 38, and a retaining wall 39 is provided on the connecting seat 33. The guide rod 38 passes through the retaining wall 39 and is slidably connected to the retaining wall 39. The elastic member 34 is sleeved on the guide rod 38, and one end of the elastic member 34 abuts the retaining wall 39, and the other end of the elastic member 34 abuts the pusher block 31. The guide rod 38 can provide support and guidance for the elastic member 34 to prevent the elastic member 34 from bending during the compression process.

[0064] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A transmission mechanism for transmitting sheet products, characterized in that: include: A support assembly (1), the support assembly (1) comprising two support side plates (11) spaced apart along a first direction, a support rod (12) being provided between the two support side plates (11), and the sheet product being mounted on the two support side plates (11) and the support rod (12); a driving structure, the driving structure being configured to drive the sheet product to move on the supporting assembly (1) along a second direction, the first direction being arranged at an angle to the second direction; The adsorption component (4) includes a suction cup (41), the suction cup (41) is arranged between the two supporting side plates (11), the suction cup (41) is configured to adsorb the sheet product, and the support rod (12) is arranged at the front end and / or the rear end of the suction cup (41).

2. The transmission mechanism according to claim 1, characterized in that: The adsorption assembly (4) further comprises a fixing seat (43) and a first lifting drive member (42), wherein the first lifting drive member (42) is arranged on the fixing seat (43), and the first lifting drive member (42) is configured to drive the suction cup (41) to move up and down.

3. The transmission mechanism according to claim 1, characterized in that: The driving structure includes a driving component (5), a feeding component (2) and a receiving component (3), wherein the driving component (5) is configured to drive the feeding component (2) and the receiving component (3) to move along the second direction, the feeding component (2) is configured to drive the sheet product to move onto the suction cup (41), and the receiving component (3) is configured to drive the sheet product to leave the suction cup (41).

4. The transmission mechanism according to claim 3, characterized in that: The feeding assembly (2) comprises two clamping jaws (24) that can move closer to or farther away from each other, and the two clamping jaws (24) can clamp the sheet product.

5. The transmission mechanism according to claim 3, characterized in that: The receiving assembly (3) includes a pushing block (31), the lower surface of which is provided with an arcuate groove (311), and the pushing block (31) is capable of moving along the second direction to push the sheet product, and the support rod (12) is partially located in the arcuate groove (311) and is in sliding contact with the arcuate groove (311).

6. The transmission mechanism according to claim 5, characterized in that: The receiving assembly (3) further includes a connecting seat (33) and an elastic member (34), wherein the connecting seat (33) is transmission-connected to the driving assembly (5), the pushing block (31) is slidingly arranged on the connecting seat (33) along a first direction, and the elastic member (34) is arranged between the pushing block (31) and the connecting seat (33), and the elastic member (34) is configured to drive the pushing block (31) to move toward a direction close to the sheet product.

7. The transmission mechanism according to claim 6, characterized in that: The receiving assembly (3) further includes a second sensing member (35) and a second sensor (36), wherein one of the second sensing member (35) and the second sensor (36) is arranged on the connecting seat (33), and the other of the second sensing member (35) and the second sensor (36) is arranged on the pushing block (31). When the pushing block (31) moves to a preset position relative to the connecting seat (33), the second sensor (36) can sense the second sensing member (35).

8. The transmission mechanism according to claim 6, characterized in that: The connecting seat (33) is capable of moving along the first direction.

9. A detection device, characterized in that: The invention comprises the transmission mechanism according to any one of claims 1 to 8, and further comprises a detection component (300) and a three-axis motion mechanism (200), wherein the three-axis motion mechanism (200) is configured to drive the detection component (300) to move, and the transmission mechanism is arranged below the detection component (300).

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