A transport mechanism and detection apparatus

Abstract

The application discloses a transmission mechanism and detection equipment, and relates to the technical field of detection. The transmission mechanism comprises a supporting assembly and a driving structure. The supporting assembly comprises two supporting side plates which are arranged at intervals along a first direction. A supporting rod is arranged between the two supporting side plates. A sheet product is arranged on the two supporting side plates and the supporting rod. The driving structure is configured to drive the sheet product to move on the supporting assembly along a second direction. The first direction and the second direction are arranged at an angle. The transmission mechanism can avoid the risk that a lead frame falls due to the drooping of a central part.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to a transmission mechanism and a detection device. BACKGROUND

[0002] The lead frame, as a chip carrier of integrated circuits, is a key structural part for realizing the electrical connection between the internal circuit lead-out end of the chip and the external lead wire by means of bonding material (gold wire, aluminum wire, copper wire), forming an electrical circuit, and playing a role of a bridge for connecting with the external lead wire. In order to ensure the yield of the lead frame, the lead frame is usually transmitted to the lower side of the optical detection mechanism by a belt line before application, and then fixed by a pressing plate for defect detection.

[0003] However, due to the light and thin texture of the lead frame, the central part is prone to sagging due to its own weight during the transmission process by the belt line, which has the risk of falling, and also affects the detection accuracy, resulting in a decrease in the yield. SUMMARY

[0004] The purpose of the present application is to provide a transmission mechanism and a detection device which can avoid the risk of falling of the sheet product due to the sagging of the central part.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] A transmission mechanism for transmitting sheet products, comprising:

[0007] A support assembly comprising two support side plates spaced apart along a first direction, a support rod being arranged between the two support side plates, and the sheet product being arranged on the two support side plates and the support rod;

[0008] A driving structure configured to drive the sheet product to move on the support assembly along a second direction, the first direction being arranged at an angle with the second direction.

[0009] As an optional solution of the above-mentioned transmission mechanism, the transmission mechanism further comprises an adsorption assembly, the adsorption assembly comprising a suction cup, the suction cup being arranged between the two support side plates, the suction cup being configured to adsorb the sheet product, and the support rod being arranged at the front end and / or rear end of the suction cup.

[0010] As an optional solution of the above-mentioned transmission mechanism, the adsorption assembly further comprises a fixing seat and a first lifting driving member, the first lifting driving member being arranged in the fixing seat, and the first lifting driving member being configured to drive the suction cup to lift.

[0011] As an optional solution of the transmission mechanism, the driving structure comprises a driving assembly, a feeding assembly and a receiving assembly, the driving assembly is configured to drive the feeding assembly and the receiving assembly to move in the second direction, the feeding assembly is configured to drive the sheet product to move onto the suction disc, and the receiving assembly is configured to drive the sheet product to move away from the suction disc.

[0012] As an optional solution of the transmission mechanism, the feeding assembly comprises two clamping jaws capable of moving close to or away from each other, and the two clamping jaws are capable of clamping the sheet product.

[0013] As an optional solution of the transmission mechanism, the receiving assembly comprises a pushing block, an arc-shaped groove is formed in a lower surface of the pushing block, the pushing block is capable of moving in the second direction to push the sheet product, and the supporting rod part is located in the arc-shaped groove and in sliding abutment with the arc-shaped groove.

[0014] As an optional solution of the transmission mechanism, the receiving assembly further comprises a connecting seat and an elastic member, the connecting seat is in transmission connection with the driving assembly, the pushing block is slidably arranged on the connecting seat in a first direction, and 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 in a direction close to the sheet product.

[0015] As an optional solution of the transmission mechanism, the receiving assembly further comprises 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.

[0016] As an optional solution of the transmission mechanism, the connecting seat is capable of moving in the first direction.

[0017] A detection device comprising the transmission mechanism, further comprising a detection assembly and a three-axis motion mechanism, the three-axis motion mechanism is configured to drive the detection assembly to move, and the transmission mechanism is arranged below the detection assembly.

[0018] The beneficial effects of the present application are as follows:

[0019] The application provides a transmission mechanism and a detection equipment. In the transmission mechanism, a support assembly is used for supporting a lead frame, both ends of the lead frame in a first direction are respectively overlapped on the support side plates on the corresponding sides, and the central part of the lead frame is supported by a support rod, so that the risk of falling of the lead frame due to the drooping of the central part can be avoided, and a driving structure can drive the lead frame to move on the support assembly, so as to move the lead frame to a suitable position for detection, and drive the lead frame to move away from the detection position after the detection is completed.

[0020] The detection equipment can detect defects such as mispunching, missing punching, dirt, oxidation, burr, bruise, deformation, missing plating and plating deviation of the lead frame through the detection assembly, can detect the lead frame with problems and mark the lead frame, and thus the yield of the lead frame is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the detection equipment provided by an embodiment of the application.

[0022] Figure 2 is a structural schematic view of the transmission mechanism provided by an embodiment of the application.

[0023] Figure 3 is a structural schematic view of the adsorption assembly provided by an embodiment of the application.

[0024] Figure 4 is a structural schematic view of the feeding assembly provided by an embodiment of the application.

[0025] Figure 5 is a first structural schematic view of the material collecting assembly provided by an embodiment of the application.

[0026] Figure 6 is a second structural schematic view of the material collecting assembly provided by an embodiment of the application.

[0027] IN THE DRAWINGS:

[0028] 100, base; 200, three-axis motion mechanism; 300, detection assembly; 400, code scanning mechanism;

[0029] 1, support assembly; 11, support side plate; 12, support rod; 13, screw rod; 14, servo motor;

[0030] 2, feeding assembly; 21, second lifting driving member; 22, connecting member; 23, clamping driving member; 231, clamping finger; 24, clamping jaw; 241, first connecting part; 242, first clamping part; 243, second connecting part; 244, second clamping part;

[0031] 3, receiving assembly; 31, pushing block; 311, arc-shaped slot; 32, third lifting driving member; 33, connecting seat; 331, strip-shaped hole; 34, elastic member; 35, second sensing member; 36, second sensor; 37, guide slide rail; 38, guide rod; 39, retaining wall;

[0032] 4, adsorption assembly; 41, suction cup; 42, first lifting driving member; 43, fixing seat; 44, connecting block; 45, first sensor; 451, detection position sensor A; 452, in-situ sensor; 453, detection position sensor B; 46, first sensing member;

[0033] 5, driving assembly; 51, straight slide rail; 52, sliding block; 53, buffer block. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar components have the same or similar designations and functions throughout, and examples of the embodiments are described in detail below with reference to the accompanying drawings. The embodiments described below are exemplary, and are intended to explain the present application, and are not to be understood as limiting the present application.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0036] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" should be understood broadly, for example, it can be fixed connection, or detachable connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Unless specifically stated and limited otherwise, the "on" or "under" of a first feature with respect to a second feature can include the first feature and the second feature being directly in contact with each other, or the first feature and the second feature not being directly in contact with each other but being in contact with each other through another feature between the first feature and the second feature. In addition, the "on", "above" and "over" of the first feature with respect to the second feature includes the first feature being directly above and obliquely above the second feature, or only indicating that the first feature is higher than the second feature in horizontal height. The "under", "below" and "under" of the first feature with respect to the second feature includes the first feature being directly below and obliquely below the second feature, or only indicating that the first feature is lower than the second feature in horizontal height.

[0038] The technical solutions of the present application will be further illustrated below in combination with the drawings and through specific embodiments.

[0039] In the production and processing of lead frames, due to various factors, it is inevitable to have defects such as mis-punching, missing punching, dirt, oxidation, burr, bruise, deformation, missing plating, and plating deviation. Therefore, before application, the lead frame is usually transmitted to the optical detection mechanism below by a belt line, fixed by a pressing plate, and then detected for defects.

[0040] The embodiment provides a detection equipment for detecting sheet products. As shown in the Figure 1 The detection equipment includes a base 100, a detection 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 detection assembly 300 to move. The transmission mechanism is arranged below the detection assembly 300. The detection assembly 300 can move in a three-dimensional space through the driving of the three-axis motion mechanism 200, so that the detection assembly 300 can move to an optimal position for detecting sheet products. The transmission mechanism can receive sheet products from a previous process and move to the position below the detection assembly 300 for detection. After detection, the transmission mechanism can move the sheet products to a next process, achieving high automation and improving efficiency.

[0041] In the embodiment, the detection assembly 300 can be a camera or a CCD (Charge Coupled Device) camera. Through visual detection, the surface defects of the sheet products can be effectively detected with high efficiency and high accuracy.

[0042] Preferably, the detection device further comprises a code scanning mechanism 400, each sheet product is provided with a label corresponding to the product information, the code scanning mechanism 400 can integrate the detection result with the corresponding product information by scanning the label, so as to record the information of the unqualified sheet product, facilitating the rejection. Wherein, the label can be a two-dimensional code, a bar code or other coding patterns capable of recording information.

[0043] The lead frame is a key structural part for realizing the electrical connection between the internal circuit lead-out end of the chip and the external lead wire by means of the bonding material (gold wire, aluminum wire, copper wire), forming an electrical circuit, and plays a role of bridge connecting the external lead wire. In the embodiment, the sheet product is taken as an example for description.

[0044] In order to ensure the yield of the lead frame, the lead frame is usually transmitted to the optical detection mechanism below by the belt line before application, and then fixed by pressing plate for defect detection. However, due to the light and thin texture of the lead frame, the central part is prone to sagging due to its own weight during the transmission process of the belt line, which has the risk of falling, and also affects the detection accuracy, resulting in a decrease in the yield.

[0045] To solve the above problems, the embodiment further provides a transmission mechanism for transmitting the lead frame. As shown in Figure 1 and Figure 2 , the transmission mechanism comprises a support assembly 1 and a driving structure, the support assembly 1 comprises two support side plates 11 arranged at intervals along a first direction (Y direction in the figure), a support rod 12 is arranged between the two support side plates 11, and the lead frame is arranged on the two support side plates 11 and the support rod 12; the driving structure is configured to drive the lead frame to move on the support assembly 1 along a second direction (X direction in the figure), and the first direction and the second direction are arranged at an angle.

[0046] In the transmission mechanism, the support assembly 1 is used to support the lead frame, the two ends of the lead frame along the first direction are respectively overlapped on the corresponding side of the support side plate 11, and the central part of the lead frame is supported by the support rod 12, which can avoid the risk of falling caused by the sagging of the central part of the lead frame, and 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 detection, and drive the lead frame to leave the detection position after the detection is completed.

[0047] The detection device can detect the defects of the lead frame such as mispunching, missing punching, dirt, oxidation, burr, bruise, deformation, missing plating and plating deviation through the detection assembly 300, and can detect and mark the lead frame with problems, thereby improving the yield of the lead frame.

[0048] Preferably, the first direction and the second direction are perpendicular to each other and are both horizontal directions.

[0049] In the 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 according to 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, so that the transmission mechanism can transport lead frames of different sizes without falling or jamming, thereby improving the applicability of the detection equipment.

[0050] In the embodiment, the base 100 is provided with an adjusting slide rail, one of the two support side plates 11 is arranged on the base 100, and the other is arranged on the adjusting slide rail. The distance between the two support side plates 11 can be adjusted by sliding the support side plate 11 along the adjusting slide rail.

[0051] As shown in Figure 1 Preferably, the base 100 is rotatably provided with a lead screw 13, and the support side plate 11 arranged on the adjusting slide rail is provided with a lead screw nut. The lead screw 13 is arranged in the support side plate 11 and threadedly connected with the lead screw nut. The lead screw 13 is driven to rotate by a servo motor 14, so that the distance between the two support side plates 11 can be quickly and accurately adjusted.

[0052] As shown in Figure 2 and Figure 3 In the embodiment, the transmission mechanism further comprises a suction assembly 4. The suction assembly 4 comprises a suction disc 41 arranged between the two support side plates 11. The suction disc 41 is configured to suck the lead frame. When the lead frame is detected, the stability of the lead frame needs to be ensured. The use of the suction disc 41 to suck the lead frame can not only make the lead frame stably stop on the suction disc 41, but also ensure the flatness of the lead frame, avoiding the application of pressure on the lead frame by other fixing methods to cause slight deformation and affect the detection result.

[0053] It is worth noting that, in order to avoid the lead frame from falling before moving to the suction assembly 4, the support rod 12 is arranged at the front end of the suction disc 41. Similarly, in order to avoid the lead frame from falling before moving to the suction assembly 4, the support rod 12 can also be arranged at the rear end of the suction disc 41. In the embodiment, the front end and the rear end of the suction disc 41 are both provided with the support rod 12, so as to ensure that the lead frame does not slip off before and after detection.

[0054] Preferably, the adsorption assembly 4 further comprises a fixing seat 43 fixedly arranged on the base 100 and a first lifting driving member 42 arranged on the fixing seat 43 and configured to drive the suction cup 41 to lift.

[0055] In the embodiment, the first lifting driving member 42 is a servo motor, the suction cup 41 is connected to the output end of the servo motor through a connecting block 44, and the servo motor can drive the suction cup 41 to lift through the connecting block 44. In order to detect the position of the suction cup 41, one of the connecting block 44 and the fixing seat 43 is provided with a first sensing member 46, and the other is provided with a first sensor 45 to control the highest and lowest positions of the suction cup 41.

[0056] As shown in Figure 3 , for example, the fixing seat 43 is provided with the first sensor 45, and the connecting block 44 is provided with the first sensing member 46. The first sensor 45 comprises a detection position sensor A 451 and a detection position sensor B 453, and the detection position sensor A 451 is located above the detection position sensor B 453. The detection position sensor A 451 and the detection position sensor B 453 are respectively used for stroke limiting of the first sensing member 46. When the first sensing member 46 is sensed by the detection position sensor A 451 or the detection position sensor B 453, the first lifting driving member 42 stops driving the connecting block 44 to move.

[0057] Preferably, the first sensor 45 further comprises a home sensor 452 arranged 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 driving member 42. In order to improve the accuracy, when the suction cup 41 is lowered, it needs to be moved to the position of the first sensing member 46 sensed by the home sensor 452, so that the first lifting driving member 42 can drive the first sensing member 46 to rise by the same distance each time, and the suction cup 41 can stop at the same height, thereby ensuring the consistency of the position of the lead frame when the lead frame is detected.

[0058] As shown in Figure 2 , in the embodiment, the driving structure comprises a driving assembly 5, a feeding assembly 2 and a collecting assembly 3. The driving assembly 5 is configured to drive the feeding assembly 2 and the collecting assembly 3 to move in the second direction. The feeding assembly 2 is configured to drive the lead frame to move onto the suction cup 41. The collecting assembly 3 is configured to drive the lead frame to move away from the suction cup 41.

[0059] The feeding assembly 2 is used to drive the lead frame before detection to move to the suction cup 41, and the collecting assembly 3 is used to drive the lead frame after detection to move away from the suction cup 41, so that the feeding assembly 2 and the collecting assembly 3 can be moved separately. During the process that the collecting assembly 3 drives the lead frame to move away from the suction cup 41, the feeding assembly 2 can drive the next lead frame to move to the suction cup 41, which greatly improves the overall operation rate and detection efficiency.

[0060] Preferably, the driving assembly 5 comprises a linear slide rail 51, and two sliding blocks 52 are arranged on the linear slide rail 51, one sliding block 52 is connected with the feeding assembly 2, and the other sliding block 52 is connected with the collecting assembly 3. The feeding assembly 2 and the collecting assembly 3 are arranged on the same linear slide rail 51, which is simple in structure and high in efficiency. In order to avoid interference between the feeding assembly 2 and the collecting assembly 3, at least one of the two sliding blocks 52 is provided with a buffer block 53, which is pressed when the two sliding blocks 52 are close to each other and the distance is small, so as to avoid collision between the feeding assembly 2 and the collecting assembly 3.

[0061] As shown in Figure 4 In this embodiment, the feeding assembly 2 comprises a second lifting driving member 21, a connecting member 22 and a clamping driving member 23. The second lifting driving member 21 is in transmission connection with the driving assembly 5, that is, arranged on one sliding block 52. The second lifting driving member 21 can drive the connecting member 22 to lift, so that the feeding assembly 2 can adjust its height according to the position and thickness of the lead frame. The connecting member 22 is connected with the clamping driving member 23, and the clamping driving member 23 can clamp the lead frame and pull the lead frame to move to the suction cup 41.

[0062] Generally, 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, and it is appropriate to drive the lead frame to move by clamping.

[0063] Preferably, the clamping driving member 23 is a clamping cylinder, which comprises two clamping fingers 231 capable of approaching or moving away from each other. The two clamping fingers 231 are respectively connected with corresponding clamping jaws 24, so that the two clamping jaws 24 can approach or move away from each other as needed to clamp the lead frame.

[0064] In the embodiment, one of the clamping jaws 24 comprises a first connecting portion 241 and a first clamping portion 242 extending downwardly, and the other clamping jaw 24 comprises a second connecting portion 243 and a second clamping portion 244 extending horizontally, the first connecting portion 241 is connected with the clamping finger 231 located above, the second connecting portion 243 is connected with the clamping finger 231 located below, the first clamping portion 242 and the second clamping portion 244 form a clamping space opening in the horizontal direction, and the opening faces the upstream of the conveying mechanism, so that the two clamping jaws 24 can clamp the lead frame from the front end of the lead frame.

[0065] Similarly, the stroke of the material collecting assembly 3 does not exceed the end of the support side plate 11, so the material collecting assembly 3 needs to drive the lead frame to move at the rear end of the lead frame. In order to achieve the above purpose, the material collecting assembly 3 comprises a pushing block 31, which can move in the second direction to push the lead frame.

[0066] As shown in Figure 5 and Figure 6 , the lower surface of the pushing block 31 is provided with an arc-shaped groove 311, and the support rod 12 is partially located in the arc-shaped groove 311 and in sliding abutment with the arc-shaped groove 311. The provision of the arc-shaped groove 311 can improve the stability of the pushing block 31 during movement, ensure that the pushing block 31 does not shake, and also enable the pushing block 31 to be partially located below the lead frame, so as to ensure that the pushing block 31 abuts against the lead frame with the front end, and ensure that the pushing block 31 and the lead frame do not disengage.

[0067] It is worth noting that in the embodiment, the material collecting assembly 3 further comprises a third lifting driving member 32 and a connecting seat 33, the connecting seat 33 is movably arranged on the third lifting driving member 32 in the first direction, and the pushing block 31 is arranged on the connecting seat 33. By moving the connecting seat 33 in the first direction, the arc-shaped groove 311 can be aligned with the support rod 12 in the vertical direction. After the lead frame is detected, the third lifting driving member 32 drives the connecting seat 33 to rise, so that the pushing block 31 is lifted and moved to the rear end of the lead frame. Then, the third lifting driving member 32 drives the connecting seat 33 to descend, so that the pushing block 31 descends to the inner wall of the arc-shaped groove 311 to abut against the support rod 12, thereby pushing the lead frame away from the suction cup 41.

[0068] Specifically, the third lifting driving member 32 is a lifting cylinder, the connecting seat 33 is provided with a strip-shaped hole 331 extending in the first direction, and a screw passes through the strip-shaped hole 331 and is threadedly connected with the piston of the lifting cylinder, so as to fix the connecting seat 33 and the piston of the lifting cylinder. When it is necessary to adjust the position of the connecting seat 33, the screw only needs to be loosened, so that the connecting seat 33 can move in the first direction.

[0069] Preferably, the material collecting assembly 3 further comprises an elastic member 34, the pushing block 31 is slidingly arranged on the connecting seat 33 in the first direction, and the elastic member 34 is arranged between the pushing block 31 and the connecting seat 33. The elastic member 34 is configured to drive the pushing block 31 to move towards the lead frame. That is, when the pushing block 31 pushes the lead frame, the reaction force generated by the lead frame on the pushing block 31 will compress the elastic member 34, thereby buffering the force of the pushing block 31 on the lead frame. During the movement of the material collecting assembly 3, the force of the pushing block 31 on the lead frame gradually increases, so as to avoid the deformation of the edge of the lead frame caused by the excessive force of the pushing block 31 on the lead frame.

[0070] In the embodiment, the material collecting assembly 3 further comprises 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 the preset position relative to the connecting seat 33, the second sensor 36 can sense the second sensing member 35.

[0071] With the increase of the compression amount of the elastic member 34, the elastic force of the elastic member 34 also increases, that is, the pushing force of the pushing block 31 on the lead frame increases. In order to avoid the deformation of the edge of the lead frame, when the pushing block 31 moves to the preset position relative to the connecting seat 33, the elastic force of the elastic member 34 reaches the maximum value that can be borne by the lead frame. At this time, the second sensor 36 senses the second sensing member 35, the material collecting assembly 3 stops moving and alarms, and the operator checks whether there is a problem in the transmission mechanism, such as the lead frame being stuck or the excessive friction between the pushing block 31 and the support member, so as to avoid the deformation of the lead frame.

[0072] Preferably, the connecting seat 33 is provided with a guide rail 37, and the pushing block 31 is slidingly arranged on the guide rail 37. The guide rail 37 can guide the pushing block 31, so that the pushing block 31 can only move relative to the connecting seat 33 in the second direction.

[0073] In the embodiment, the pushing block 31 is connected with a guide rod 38, the connecting seat 33 is provided with a retaining wall 39, the guide rod 38 penetrates through the retaining wall 39 and is slidingly connected with the retaining wall 39, the elastic member 34 is sleeved on the guide rod 38, one end of the elastic member 34 abuts against the retaining wall 39, and the other end of the elastic member 34 abuts against the pushing block 31. The guide rod 38 can provide support and guidance for the elastic member 34, so as to avoid the bending of the elastic member 34 during compression.

[0074] The above is only a preferred embodiment of the present application. Those skilled in the art can make changes in specific implementation and application range according to the idea of the present application. The content of the specification should not be understood as a limitation of the present application.

Claims

1. A transmission mechanism for transmitting sheet products, characterized in that, include: Support assembly (1), the support assembly (1) includes two support side plates (11) spaced apart along a first direction, and a support rod (12) is provided between the two support side plates (11). The sheet product is mounted on the two support side plates (11) and the support rod (12). A driving structure configured to drive the sheet product to move along a second direction on the support assembly (1), wherein the first direction and the second direction are set at an angle; Adsorption assembly (4), the adsorption assembly (4) includes a suction cup (41), the suction cup (41) is disposed between two support side plates (11), the suction cup (41) is configured to adsorb the sheet product, and the support rod (12) is disposed at the front end and / or rear end of the suction cup (41); The drive structure includes a receiving component (3), which is configured to drive the sheet product away from the suction cup (41). The receiving component (3) includes a pusher block (31), and the lower surface of the pusher block (31) is provided with an arc groove (311). The pusher block (31) can move along the second direction to push the sheet product. The support rod (12) is partially located in the arc groove (311) and slides against the arc groove (311).

2. The transmission mechanism according to claim 1, characterized in that, The adsorption assembly (4) further includes a fixed base (43) and a first lifting drive (42), the first lifting drive (42) being disposed on the fixed base (43) and configured to drive the suction cup (41) to rise and fall.

3. The transmission mechanism according to claim 1, characterized in that, The driving structure includes a driving component (5) and a feeding component (2). 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).

4. The transmission mechanism according to claim 3, characterized in that, The feeding assembly (2) includes two grippers (24) that can move closer or further apart from each other, and the two grippers (24) can hold the sheet product.

5. The transmission mechanism according to claim 3, characterized in that, The receiving assembly (3) further includes a connecting seat (33) and an elastic element (34). The connecting seat (33) is connected to the driving assembly (5) in a transmission manner. The pusher block (31) is slidably disposed on the connecting seat (33) in a first direction. The elastic element (34) is disposed between the pusher block (31) and the connecting seat (33). The elastic element (34) is configured to drive the pusher block (31) to move toward the direction closer to the sheet product.

6. The transmission mechanism according to claim 5, characterized in that, The receiving assembly (3) further includes a second sensing element (35) and a second sensor (36). One of the second sensing element (35) and the second sensor (36) is disposed on the connecting seat (33), and the other of the second sensing element (35) and the second sensor (36) is disposed 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 element (35).

7. The transmission mechanism according to claim 5, characterized in that, The connecting seat (33) is movable along the first direction.

8. A testing device, characterized in that, The transmission mechanism according to any one of claims 1 to 7 further includes a detection component (300) and a three-axis motion mechanism (200), the three-axis motion mechanism (200) being configured to drive the detection component (300) to move, and the transmission mechanism being disposed below the detection component (300).

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