Sucker mechanism and automatic material taking device

Abstract

The utility model belongs to the technical field of automatic equipment, and relates to a suction cup mechanism and an automatic material taking device. The suction cup mechanism comprises a distance adjusting assembly, an angle adjusting assembly and two or more suction cup assemblies. The multiple suction cup assemblies are arranged on the interval adjusting assembly in the first direction, and the interval adjusting assembly is configured to adjust the interval between every two adjacent suction cup assemblies in the first direction. The angle adjusting assembly is connected with the spacing adjusting assembly, and the angle adjusting assembly is configured to drive the spacing adjusting assembly to rotate so as to adjust the angles of the multiple suction cup assemblies. The suction cup mechanism is high in universality and can adapt to different working conditions or products, technicians do not need to redesign the suction cup structure, and the production cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automation equipment, in particular to a suction disc mechanism and an automatic material taking device. BACKGROUND

[0002] In the related art, a suction disc mechanism is generally used to take, place and transport materials. However, the design of the existing suction disc mechanism is usually specific to certain working conditions or products, which results in poor versatility of the suction disc mechanism. Once the spacing or angle of the materials changes, the suction disc mechanism will not be able to normally suck the materials. The technician needs to redesign the layout of the suction disc mechanism, which increases the production cost. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a suction disc mechanism and an automatic material taking device to improve the technical problem of poor versatility of the existing suction disc mechanism.

[0004] An embodiment of the present application provides a suction disc mechanism. The suction disc mechanism comprises a spacing adjustment assembly, an angle adjustment assembly and two or more suction disc assemblies. The plurality of suction disc assemblies are arranged along a first direction on the spacing adjustment assembly, and the spacing adjustment assembly is configured to adjust the spacing between the adjacent two suction disc assemblies along the first direction. The angle adjustment assembly is connected with the spacing adjustment assembly, and the angle adjustment assembly is configured to drive the spacing adjustment assembly to rotate to adjust the angle of the plurality of suction disc assemblies.

[0005] The above-mentioned suction disc mechanism can not only adjust the spacing between the adjacent two suction disc assemblies through the spacing adjustment assembly to adapt to materials with different spacings, but also can drive the spacing adjustment assembly to rotate through the angle adjustment assembly to adjust the angle of the plurality of suction disc assemblies to adapt to materials with different placement angles. Compared with the existing suction disc mechanism, the suction disc mechanism of the present application has strong versatility and can adapt to different working conditions or products, and the technician does not need to redesign the suction disc structure, thereby reducing the production cost.

[0006] In at least one embodiment, the spacing adjustment assembly comprises a base, a first driving member and a lead screw. The base is rotatably installed on the angle adjustment assembly, the first driving member is installed on the base and connected with the lead screw. The plurality of suction disc assemblies are arranged and installed on the lead screw along the first direction, and the first driving member is configured to drive the lead screw to rotate to drive the adjacent two suction disc assemblies to move closer to or away from each other along the first direction.

[0007] In the above-mentioned embodiment, when the spacing of the plurality of suction disc assemblies needs to be adjusted, the first driving member drives the lead screw to rotate forward or reversely, and the lead screw drives the adjacent two suction disc assemblies to move closer to or away from each other along the first direction, so that the spacing adjustment between the plurality of suction disc assemblies is realized. By adopting the lead screw transmission mode, the transmission efficiency and transmission accuracy between the first driving member and the suction disc assembly are improved, and the accurate movement and suction position of the suction disc assembly are ensured.

[0008] In at least one embodiment, the distance adjustment assembly further comprises a plurality of guide sleeves, each of the plurality of guide sleeves is sleeved on the screw rod and arranged along the first direction, and each of the plurality of suction disc assemblies is connected with one of the plurality of guide sleeves.

[0009] In the above embodiment, the suction disc assembly is not directly connected with the screw rod through the arrangement of the guide sleeve. When the suction disc mechanism works for a long time, causing the wear and failure between the screw rod and the suction disc assembly, the technician only needs to replace the worn guide sleeve without replacing the entire suction disc assembly, which helps to reduce the maintenance cost.

[0010] In at least one embodiment, the angle adjustment assembly comprises a first mounting plate, a second driving member and a transmission member. The first mounting plate is provided with a first bearing seat, and the first bearing seat is rotationally connected with the base. The second driving member is mounted on the first mounting plate and connected with the base through the transmission member, and the second driving member is configured to drive the base to rotate relative to the first bearing seat through the transmission member.

[0011] In the above embodiment, when the angles of the plurality of suction disc assemblies need to be adjusted, the second driving member drives the base in the distance adjustment assembly to rotate relative to the first bearing seat through the transmission member, thereby driving the suction disc assembly mounted on the distance adjustment assembly to rotate, so as to ensure that the suction disc assembly meets the materials with different placing angles. Through the arrangement of the transmission member, linear motion can be converted into rotary motion, which helps to reduce the load of the second driving member and prolong the service life of the second driving member.

[0012] In at least one embodiment, the transmission member comprises a gear and a rack that are engaged with each other, the gear is mounted on the base, the rack is slidingly mounted on the first mounting plate along a second direction and connected with the second driving member, and the second direction intersects the first direction.

[0013] In the above embodiment, when the angles of the plurality of suction disc assemblies need to be adjusted, the second driving member drives the rack to move along the second direction, the rack drives the gear to rotate, the gear drives the base in the distance adjustment assembly to rotate relative to the first bearing seat, thereby driving the suction disc assembly mounted on the distance adjustment assembly to rotate. By adopting the gear and rack transmission mode, the transmission efficiency and transmission precision between the second driving member and the base in the distance adjustment assembly can be improved, and the gear and rack have compact structure, long service life and large applicable load range.

[0014] In at least one embodiment, the rack is provided with a sliding portion, and the mounting plate is provided with a sliding groove along the second direction. When the rack is mounted on the first mounting plate, the sliding portion is inserted into the sliding groove.

[0015] In the above embodiment, through the arrangement of the sliding groove and the sliding portion, the accurate movement of the rack can be ensured, and the risk of damage caused by the deviation of the rack and the gear due to the deviation of the rack can be reduced.

[0016] In at least one embodiment, when the first bearing seat is rotationally connected with the base, a clearance is formed between the base and the first mounting plate.

[0017] In the above embodiment, when the base rotates relative to the first bearing seat, the clearance can avoid the base, so as to reduce the risk of jamming or stalling of the angle adjusting assembly due to the motion interference between the base and the first mounting plate, and improve the stability and safety of the suction cup assembly.

[0018] In at least one embodiment, the angle adjusting assembly comprises a second mounting plate and a third driving member, the second mounting plate is provided with a second bearing seat, and the second bearing seat is rotationally connected with the base. The third driving member is installed on the second mounting plate and connected with the base, and the third driving member is configured to drive the base to rotate relative to the second bearing seat.

[0019] In the above embodiment, the third driving member directly drives the base in the distance adjusting assembly to rotate relative to the first bearing seat, thereby driving the suction cup assembly installed on the distance adjusting assembly to rotate, which is conducive to simplifying the structure of the suction cup mechanism, reducing the assembly steps of the suction cup mechanism, and improving the installation efficiency.

[0020] In at least one embodiment, the suction cup mechanism further comprises a proximity switch, the proximity switch is installed on the distance adjusting assembly, and the proximity switch is configured to control the start and stop of the angle adjusting assembly.

[0021] In the above embodiment, the distance adjusting assembly rotates under the driving of the angle adjusting assembly, and the proximity switch senses the action distance. At this time, the proximity switch automatically controls the angle adjusting assembly to stop, and the switch can act without mechanical contact and any pressure. Through the setting of the proximity switch, on the one hand, it helps to reduce the risk of motion interference between the distance adjusting assembly and the angle adjusting assembly, and on the other hand, it is conducive to improving the intelligent degree of the suction cup mechanism and improving the user's experience.

[0022] An embodiment of the present application provides an automatic material taking device. The automatic material taking device comprises a rack and the above-mentioned suction cup mechanism, and the suction cup mechanism is installed on the rack.

[0023] The above-mentioned automatic material taking device adopts the above-mentioned suction cup mechanism. The suction cup mechanism can not only adjust the distance between two adjacent suction cup assemblies through the distance adjusting assembly to adapt to materials with different distances, but also can drive the distance adjusting assembly to rotate through the angle adjusting assembly to adjust the angle of the plurality of suction cup assemblies to adapt to materials with different placement angles. The automatic material taking device in the present application has strong versatility and can adapt to different working conditions or products, and technicians do not need to redesign the suction cup structure, thereby reducing production cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application;

[0025] Figure 2 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application; Figure 1 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application;

[0026] Figure 3 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application; Figure 1 is an exploded structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application;

[0027] Figure 4 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application; Figure 1 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application;

[0028] Figure 5 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application; Figure 1 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application;

[0029] Figure 6 is a structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application; Figure 5 is an exploded structural schematic diagram of the suction cup mechanism provided in an embodiment of the present application;

[0030] Figure 7 is a structural block diagram of the automatic material taking device provided in an embodiment of the present application.

[0031] Main element symbol explanation:

[0032] 1000, automatic material taking device; 100, suction cup mechanism; 10, distance adjustment assembly; 11, base; 111, connecting shaft; 12, first driving member; 13, screw rod; 14, guide sleeve; 20, angle adjustment assembly; 21, first mounting plate; 211, first bearing seat; 212, sliding groove; 22, second driving member; 23, transmission member; 231, gear; 232, rack; 2321, sliding part; 30, suction cup assembly; 40, avoiding space; 50, proximity switch; 200, rack; X, first direction; Y, second direction.

[0033] The following specific embodiments will further illustrate the present application in combination with the above-mentioned drawings. Specific embodiments

[0034] The technical solutions in the embodiments of the present application will be described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0036] The application provides a suction disc mechanism. The suction disc mechanism comprises a spacing adjustment assembly, an angle adjustment assembly, and two or more suction disc assemblies. The plurality of suction disc assemblies are arranged along a first direction on the spacing adjustment assembly, and the spacing adjustment assembly is configured to adjust the spacing between two adjacent suction disc assemblies along the first direction. The angle adjustment assembly is connected to the spacing adjustment assembly, and the angle adjustment assembly is configured to drive the spacing adjustment assembly to rotate to adjust the angle of the plurality of suction disc assemblies.

[0037] The suction disc mechanism described above can not only adjust the spacing between two adjacent suction disc assemblies by the spacing adjustment assembly to adapt to materials with different spacings, but also drive the spacing adjustment assembly to rotate by the angle adjustment assembly to adjust the angle of the plurality of suction disc assemblies to adapt to materials with different placement angles. Compared with the existing suction disc mechanism, the suction disc mechanism of the application has strong versatility and can adapt to different working conditions or products, and technicians do not need to redesign the suction disc structure, thereby reducing production costs.

[0038] Some embodiments of the application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict. In the present embodiment, the first direction is defined to intersect the second direction. The first direction is the direction parallel to X in the drawing, and the second direction is the direction parallel to Y in the drawing. For the convenience of referring to the drawing, the first direction is denoted as "first direction X" hereinafter, and the second direction is denoted as "second direction Y".

[0039] An embodiment of the application provides a suction disc mechanism 100 for sucking materials (not shown in the drawing), such as wafers, chips, and films. Figures 1 to 3 As shown, the suction disc mechanism 100 comprises a spacing adjustment assembly 10, an angle adjustment assembly 20, and two or more suction disc assemblies 30.

[0040] The plurality of suction disc assemblies 30 are arranged along the first direction X on the spacing adjustment assembly 10, and the spacing adjustment assembly 10 is configured to adjust the spacing between two adjacent suction disc assemblies 30 along the first direction X to adapt to materials with different spacings.

[0041] For example, in the initial working condition, the materials in the tray (not shown in the drawing) are arranged along the first direction X, and the spacing between two adjacent materials is 5 mm. At this time, the spacing between two adjacent suction disc assemblies 30 in the suction disc mechanism 100 is 5 mm, and each suction disc assembly 30 corresponds to one material.

[0042] When the spacing between two adjacent materials in the tray is adjusted to 10 mm, the spacing adjustment assembly 10 adjusts the spacing between two adjacent suction disc assemblies 30 to 10 mm along the first direction X. At this time, each suction disc assembly 30 in the suction disc mechanism 100 still corresponds to one material.

[0043] In some embodiments, the angle adjusting assembly 20 is connected with the interval adjusting assembly 10, and the angle adjusting assembly 20 is configured to drive the interval adjusting assembly 10 to rotate, so as to adjust the angle of the plurality of suction cup assemblies 30, to adapt to materials with different placement angles.

[0044] For example, in the initial working condition, the tray is horizontally placed on the bearing table (which can be a machine table, the ground, etc.), and the plurality of suction cup assemblies 30 in the suction cup mechanism 100 are in a vertical state, and each suction cup assembly 30 sucks the material along a direction perpendicular to the material. When the tray is inclined relative to the bearing table, the angle adjusting assembly 20 drives the interval adjusting assembly 10 to rotate, so as to adjust the angle of the plurality of suction cup assemblies 30, to ensure that each suction cup assembly 30 still sucks the material along a direction perpendicular to the material.

[0045] The suction cup mechanism 100 of the present application not only can adjust the interval between the two adjacent suction cup assemblies 30 through the interval adjusting assembly 10 to adapt to materials with different intervals, but also can drive the interval adjusting assembly 10 to rotate through the angle adjusting assembly 20 to adjust the angle of the plurality of suction cup assemblies 30 to adapt to materials with different placement angles.

[0046] Compared with the existing suction cup mechanism, the suction cup mechanism 100 of the present application has strong versatility, can adapt to different working conditions or products, and technicians do not need to redesign the suction cup mechanism 100, so the production cost is low.

[0047] It is worth noting that in other embodiments, the suction cup mechanism 100 can be provided with the angle adjusting assembly 20 alone or the interval adjusting assembly 10 alone, which is not limited in the present application, and technicians can select according to the actual situation.

[0048] In some embodiments, as shown in Figure 1 and Figure 4 The interval adjusting assembly 10 includes a base 11, a first driving member 12, and a lead screw 13. The base 11 is rotationally installed on the angle adjusting assembly 20, the first driving member 12 is installed on the base 11 and connected with the lead screw 13. The plurality of suction cup assemblies 30 are arranged and installed on the lead screw 13 along a first direction X. The first driving member 12 is configured to drive the lead screw 13 to rotate, so as to drive the two adjacent suction cup assemblies 30 to move closer to or away from each other along the first direction X.

[0049] For example, the number of the suction cup assemblies 30 is two, one of the two suction cup assemblies 30 is installed in a positive tooth with the lead screw 13, and the other is installed in a reverse tooth with the lead screw 13. When it is needed to increase the interval between the two suction cup assemblies 30, the first driving member 12 drives the lead screw 13 to rotate in a positive direction. At this time, the two suction cup assemblies 30 move away from each other, so as to increase the interval between the two suction cup assemblies 30.

[0050] When it is needed to reduce the distance between the two suction disc assemblies 30, the first driving member 12 drives the screw rod 13 to rotate reversely. At this time, the two suction disc assemblies 30 are close to each other, that is, the distance between the two suction disc assemblies 30 can be reduced.

[0051] It should be noted that by adopting the transmission mode of the screw rod 13, the transmission efficiency and transmission accuracy between the first driving member 12 and the suction disc assembly 30 can be improved, and the accurate movement of the suction disc assembly 30 to the suction position can be ensured.

[0052] In some embodiments, as shown in Figure 1 , Figure 4 The distance adjusting assembly 10 further comprises a plurality of guide sleeves 14, the plurality of guide sleeves 14 are sleeved on the screw rod 13 and arranged along the first direction X, and each suction disc assembly 30 is connected with one guide sleeve 14.

[0053] By arranging the guide sleeve 14, the suction disc assembly 30 does not need to be directly connected and matched with the screw rod 13. When the suction disc mechanism 100 works for a long time, the wear and failure between the screw rod 13 and the suction disc assembly 30 occur, and the technician does not need to replace the entire suction disc assembly 30, but only needs to replace the worn guide sleeve 14, which helps to reduce the maintenance cost.

[0054] In other embodiments, the distance adjusting assembly 10 can also directly adjust the distance between the two adjacent suction disc assemblies 30 through the first driving member 12. For example, each suction disc assembly 30 is provided with a power source, and the power source can individually adjust the position of the corresponding suction disc assembly 30. The present application does not make any limitation, and the person skilled in the art can select according to the actual situation.

[0055] In some embodiments, as shown in Figure 1 , Figure 3 and Figure 5 The angle adjusting assembly 20 comprises a first mounting plate 21, a second driving member 22 and a transmission member 23. The first mounting plate 21 is provided with a first bearing seat 211, and the first bearing seat 211 is rotationally connected with the base 11.

[0056] Specifically, the base 11 is provided with a connecting shaft 111, and the connecting shaft 111 is movably inserted into the first bearing seat 211. In other embodiments, other suitable rotation connection structures can also be adopted, and the present application does not make any limitation, and the person skilled in the art can select according to the actual situation.

[0057] The second driving member 22 is mounted on the first mounting plate 21 and connected with the base 11 through the transmission member 23. The second driving member 22 is configured to drive the base 11 to rotate relative to the first bearing seat 211 through the transmission member 23. It can be understood that when it is necessary to adjust the angles of the plurality of suction disc assemblies 30, the second driving member 22 drives the base 11 in the spacing adjustment assembly 10 to rotate relative to the first bearing seat 211 through the transmission member 23, thereby driving the suction disc assemblies 30 mounted on the spacing adjustment assembly 10 to rotate, so as to ensure that the suction disc assemblies 30 meet the materials with different placement angles.

[0058] Through the arrangement of the transmission member 23, linear motion can be converted into rotary motion, which is conducive to reducing the load of the second driving member 22 and prolonging the service life of the second driving member 22.

[0059] In some embodiments, the angle adjustment assembly 20 includes a second mounting plate (not shown in the figure) and a third driving member (not shown in the figure). The second mounting plate is provided with a second bearing seat (not shown in the figure), and the second bearing seat is rotationally connected with the base 11. The third driving member is mounted on the second mounting plate and connected with the base 11. The third driving member is configured to drive the base 11 to rotate relative to the second bearing seat.

[0060] It can be understood that when it is necessary to adjust the angles of the plurality of suction disc assemblies 30, the second driving member 22 drives the base 11 in the spacing adjustment assembly 10 to rotate relative to the first bearing seat 211, thereby driving the suction disc assemblies 30 mounted on the spacing adjustment assembly 10 to rotate.

[0061] Through the third driving member, the base 11 in the spacing adjustment assembly 10 is directly driven to rotate relative to the first bearing seat 211, which is conducive to simplifying the structure of the suction disc mechanism 100, reducing the assembly steps of the suction disc mechanism 100, and improving the installation efficiency.

[0062] In some embodiments, as shown in Figure 1 , Figure 3 and Figure 5 , the transmission member 23 includes a gear 231 and a rack 232 that mesh with each other. The gear 231 is mounted on the base 11, and the rack 232 is slidingly mounted on the first mounting plate 21 along the second direction Y and connected with the second driving member 22.

[0063] It can be understood that when it is necessary to adjust the angles of the plurality of suction disc assemblies 30, the second driving member 22 drives the rack 232 to move along the second direction Y, the rack 232 drives the gear 231 to rotate, the gear 231 drives the base 11 in the spacing adjustment assembly 10 to rotate relative to the first bearing seat 211, thereby driving the suction disc assemblies 30 mounted on the spacing adjustment assembly 10 to rotate.

[0064] It should be noted that, by adopting the gear 231 and the rack 232 transmission mode, the transmission efficiency and transmission accuracy between the second driving member 22 and the base 11 in the spacing adjustment assembly 10 can be improved, and the gear 231 and the rack 232 have compact structure, long service life and large applicable load range.

[0065] In some embodiments, as shown in Figure 6 The rack 232 is provided with a sliding part 2321, and the first mounting plate 21 is provided with a sliding groove 212 in the second direction Y. When the rack 232 is mounted on the first mounting plate 21, the sliding part 2321 is inserted into the sliding groove 212. Through the arrangement of the sliding groove 212 and the sliding part 2321, the accurate movement of the rack 232 can be ensured, and the risk of damage caused by the deviation of the rack 232 and the meshing of the rack 232 and the gear 231 can be reduced.

[0066] In other embodiments, the rack 232 can also be slidably mounted on the first mounting plate 21 in other suitable sliding structures, for example, the rack 232 is provided with a sliding block (not shown), and the first mounting plate 21 is provided with a sliding rail (not shown), and the sliding block is slidably mounted on the sliding rail. The present application does not make any limitation, and those skilled in the art can choose according to the actual situation.

[0067] In some embodiments, as shown in Figure 1 and Figure 2 When the first bearing seat 211 is rotatably connected with the base 11, the avoiding space 40 is formed between the base 11 and the first mounting plate 21. It can be understood that, due to the arrangement of the avoiding space 40, when the base 11 rotates relative to the first bearing seat 211, the avoiding space 40 can avoid the base 11, so as to reduce the risk of jamming or lagging of the angle adjustment assembly 20 caused by the movement interference between the base 11 and the first mounting plate 21, and improve the stability and safety of the suction cup assembly 30.

[0068] In some embodiments, as shown in Figure 1 and Figure 2 The suction cup mechanism 100 further comprises a proximity switch 50, which is mounted on the spacing adjustment assembly 10 and is configured to control the start and stop of the angle adjustment assembly 20. Through the arrangement of the proximity switch 50, on the one hand, the risk of movement interference between the spacing adjustment assembly 10 and the angle adjustment assembly 20 can be reduced, and on the other hand, the intelligent degree of the suction cup mechanism 100 can be improved, and the user's experience can be improved.

[0069] For example, the proximity switch 50 is provided with an induction area. The spacing adjustment assembly 10 rotates under the drive of the angle adjustment assembly 20, and when the angle adjustment assembly 20 is located in the induction area, the proximity switch 50 senses the action distance. At this time, the proximity switch 50 automatically controls the angle adjustment assembly 20 to stop.

[0070] An embodiment of the present application provides an automatic material taking device 1000. As shown in the figure, the automatic material taking device 1000 comprises a rack 200 and the above-mentioned suction disc mechanism 100, and the suction disc mechanism 100 is installed on the rack 200. Figure 7

[0071] The automatic material taking device 1000 of the present application adopts the above-mentioned suction disc mechanism 100. The suction disc mechanism 100 can not only adjust the interval between two adjacent suction disc assemblies 30 through the interval adjusting assembly 10 to adapt to materials with different intervals, but also can drive the interval adjusting assembly 10 to rotate through the angle adjusting assembly 20 to adjust the angle of the plurality of suction disc assemblies 30 to adapt to materials with different placement angles. The automatic material taking device 1000 of the present application has strong versatility and can adapt to different working conditions or products, and technicians do not need to redesign the suction disc mechanism 100, so the production cost is low.

[0072] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any change or replacement within the technical scope disclosed by the present application should be covered in the disclosure scope of the present application.​

Claims

1. A suction cup mechanism, characterized by, The application relates to a suction disc mechanism. The suction disc mechanism comprises a distance adjusting assembly, two or more suction disc assemblies, and an angle adjusting assembly. The distance adjusting assembly comprises a base, a first driving member, and a screw rod. The two or more suction disc assemblies are arranged along a first direction on the screw rod.

2. The suction cup mechanism according to claim 1, characterized in that The first driving member is configured to drive the screw rod to rotate, so as to drive two adjacent suction disc assemblies to move closer to or away from each other along the first direction. The distance adjusting assembly further comprises a plurality of guide sleeves.

3. The suction cup mechanism of claim 2, wherein, The angle adjusting assembly comprises a first mounting plate, a second driving member, and a transmission member.

4. Chuck mechanism according to claim 2 or 3, characterized in that The first mounting plate is provided with a first bearing seat. The second driving member is arranged on the first mounting plate and connected with the base through the transmission member.

5. The suction cup mechanism of claim 4, wherein, The second driving member is configured to drive the base to rotate relative to the first bearing seat through the transmission member.

6. The suction cup mechanism of claim 5, wherein, The transmission member comprises a gear and a rack.

7. The suction cup mechanism of claim 4, wherein, The gear is arranged on the base.

8. A chuck mechanism according to claim 2 or 3, characterised in that The rack is arranged on the first mounting plate in a second direction. The second direction intersects the first direction.

9. The suction cup mechanism of claim 1, wherein, The rack is provided with a sliding portion.

10. An automatic picking device, characterized in that The first mounting plate is provided with a sliding groove in the second direction. The sliding portion is inserted into the sliding groove when the rack is arranged on the first mounting plate. The base and the first mounting plate are provided with a clearance. The angle adjusting assembly further comprises a second mounting plate and a third driving member. The second mounting plate is provided with a second bearing seat. The third driving member is arranged on the second mounting plate and connected with the base. The third driving member is configured to drive the base to rotate relative to the second bearing seat. The suction disc mechanism further comprises a proximity switch. The proximity switch is arranged on the distance adjusting assembly. The proximity switch is configured to control the start and stop of the angle adjusting assembly. The application further relates to a machine rack provided with the suction disc mechanism.

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