Material conveying device and appearance detection equipment

Abstract

The invention relates to a material conveying device and appearance detection equipment, the material conveying device comprises a carrying assembly and a positioning assembly, the carrying assembly is provided with an avoiding space, and the carrying assembly is used for conveying workpieces in the first direction; the positioning assembly is located below the carrying assembly and penetrates through the avoiding space, the positioning assembly comprises a connecting frame, a positioning block and a suction part, and the connecting frame moves between the avoiding position and the positioning position in the lifting direction; the at least two positioning blocks are oppositely arranged on the connecting frame in a spaced mode in the second direction, the sides, facing each other, of the at least two oppositely-arranged positioning blocks are provided with positioning faces, the oppositely-arranged positioning faces gradually get away from each other upwards in the lifting direction of the connecting frame, and the second direction intersects with the first direction; the suction piece is arranged on the connecting frame and located between the positioning blocks, and the suction piece is used for forming negative pressure in the space clamped by the oppositely-arranged positioning faces.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material conveying, in particular to a conveying device and appearance detection equipment. BACKGROUND

[0002] With the development of electromechanical and other related technologies, the structures of various electronic products are becoming increasingly complex, and the requirements for product detection accuracy are also becoming increasingly stringent. In related technologies, the product to be detected needs to be transferred to an independent positioning station for accurate positioning before entering the specific detection station. This step calibrates the position of the product to ensure the high accuracy of subsequent processing.

[0003] However, when the product to be detected is conveyed and positioned by the above conveying and positioning method, the product needs to be transferred from the conveying line to the positioning station, and then to the detection station after positioning is completed. This leads to a complex workpiece movement path, a large number of transfers, and low transfer efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a conveying device and appearance detection equipment to solve the problem of low efficiency in the workpiece conveying and positioning process.

[0005] In one aspect, the present application provides a conveying device, which comprises a carrying assembly and a positioning assembly. The carrying assembly has an avoiding space and is used to convey a workpiece in a first direction. The positioning assembly is located below the carrying assembly and penetrates the avoiding space. The positioning assembly comprises a connecting frame, positioning blocks, and an attracting piece. The connecting frame moves in a lifting direction between an avoiding position and a positioning position. At least two positioning blocks are arranged on the connecting frame in a second direction and are spaced apart from each other. The side of the at least two positioning blocks facing each other has a positioning surface, which faces upward along the lifting direction of the connecting frame. The positioning surfaces gradually move away from each other. The second direction intersects the first direction. The attracting piece is arranged on the connecting frame and located between the positioning blocks. The attracting piece is used to form a negative pressure in the space clamped by the positioning surfaces. When the connecting frame is in the avoiding position, the positioning blocks and the attracting piece are located below the conveying plane of the carrying assembly. When the connecting frame is in the positioning position, at least part of the structure of the positioning blocks is located on the side of the conveying plane facing the workpiece. The positioning surface is used to abut against the workpiece.

[0006] In one embodiment, the attracting piece is configured as a flexible body, and has a negative pressure forming hole. When the connecting frame is in the positioning position, the attracting piece is used to contact the workpiece, and the negative pressure forming hole is blocked by the workpiece.

[0007] In one of the embodiments, the suction member has a contact surface, which is higher than or equal to the bottom side of the positioning surface in the lifting direction.

[0008] In one of the embodiments, the number of the suction members is plural, and the plural suction members are arranged in an array in the first direction and the second direction. In the first direction, the interval between adjacent suction members is the same, and in the second direction, the interval between adjacent suction members is also the same. In the second direction, the suction members at the two side edges of the array are equal in distance to the positioning blocks at the two sides, and the interval between adjacent suction members in the first direction is the same, and the interval between adjacent suction members in the second direction is the same.

[0009] In one of the embodiments, the connecting frame has a communication flow channel, which communicates the suction member and the negative pressure generator.

[0010] In one of the embodiments, the positioning assembly includes a lifting driver, the connecting frame includes a first frame body and a plurality of second frame bodies, and the plurality of second frame bodies are spaced apart from the first frame body in the first direction. The first frame body is connected to the lifting driver and is driven to move between the positioning position and the avoiding position. Two facing positioning blocks are a positioning group, and a plurality of positioning groups are provided one by one in a plurality of second frame bodies.

[0011] In one of the embodiments, the carrying assembly includes a plurality of carrying components, and the plurality of carrying components are arranged side by side, and at least part of the carrying components have the avoiding space therebetween. In the process of moving the connecting frame in the lifting direction, the positioning block at least in the positioning position passes through the avoiding space.

[0012] In one of the embodiments, the carrying component is configured as a friction wheel type carrying mechanism or a roller type carrying mechanism, and the carrying assembly further includes a stand, the carrying component includes a rotating shaft and a plurality of conveying circumferential members, the plurality of conveying circumferential members are sleeved on the rotating shaft, the plurality of rotating shafts are arranged side by side in the first direction on the stand, and the adjacent rotating shafts are spaced apart to form the avoiding space.

[0013] In one of the embodiments, the carrying component is configured as a conveying belt type carrying mechanism, and the carrying component includes a first wheel, a second wheel and a conveying belt. The first wheel and the second wheel are spaced apart in the first direction, and the conveying belt is wound outside the first wheel and the second wheel to extend in the first direction. The plurality of carrying components are arranged in the direction perpendicular to the first direction to form the avoiding space, and the two facing positioning blocks pass through different avoiding spaces.

[0014] In one of the embodiments, the material feeding device further comprises a base, the positioning assembly further comprises a blocking member, the blocking member is arranged on the base or the connecting frame, at least one side region of the connecting frame is distributed with the blocking member along the first direction, at least part of the structure of the blocking member is located on the side of the conveying plane facing the workpiece when the connecting frame is in the positioning position.

[0015] In one of the embodiments, the blocking member is located at the downstream end of the carrying assembly along the first direction, the blocking member is fixedly arranged on the base, at least part of the structure of the blocking member is located on the side of the conveying plane facing the workpiece.

[0016] In one of the embodiments, the connecting frame is movably arranged on the base, at least two blocking members are oppositely and spacedly arranged on the connecting frame along the first direction, the side of the oppositely arranged blocking members facing each other is provided with a limiting surface, the oppositely arranged limiting surfaces gradually move away from each other along the lifting direction, at least part of the structure of the blocking member is located on the side of the conveying plane facing the workpiece when the connecting frame is in the positioning position, and the limiting surface is used for abutting against the workpiece.

[0017] In one of the embodiments, the material feeding device further comprises a carrying assembly, the carrying assembly is used for picking up and transferring the workpiece positioned by the positioning assembly.

[0018] Another aspect of the present application further provides an appearance detection device, which comprises the material feeding device as described above.

[0019] The above material conveying device, the carrying assembly has an avoiding space, and the positioning assembly below the carrying assembly can pass through the avoiding space. When the connecting frame is in the avoiding position, the positioning block and the attracting member are below the conveying plane of the carrying assembly, so they do not interfere with the movement of the workpiece on the carrying assembly. When the connecting frame moves from the avoiding position to the positioning position, the positioning block can rise to the position of the conveying plane through the above avoiding space and pass through the conveying plane, so that when the connecting frame is in the positioning position, the positioning surface can contact and abut the workpiece. Because the opening and closing degree of the positioning surfaces arranged opposite each other is large above and small below, the positioning surface can gradually push the workpiece during the rising of the positioning block, so that the workpiece is positioned. Moreover, the attracting member is used to form negative pressure in the space clamped by the positioning surfaces arranged opposite each other, so that the workpiece between the two positioning surfaces always has a movement trend of moving close to the attracting member, so as to fully guide the movement of the workpiece relative to the positioning surface, and fully exert the guiding and positioning effect of the positioning surface. In this application, the material conveying device has a carrying assembly and a positioning assembly at the same time. When the workpiece is carried to the area where the positioning assembly is located, the positioning assembly can position the workpiece, so that the workpiece is accurately in the expected position for picking up by the component for transferring the workpiece. Compared with the positioning mode in the prior art, when the workpiece is conveyed to the positioning assembly by the carrying assembly, the positioning assembly can position the workpiece by lifting, without the need to configure an additional positioning station, and also without the need to perform an additional action of transferring the workpiece to an independent positioning station. Therefore, the structure and the action required to be performed by the material conveying device are simplified, and the workpiece transfer efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The shaft view schematic diagram of the material conveying device provided by an embodiment of the application.

[0021] Figure 2 The shaft view schematic diagram of the carrying assembly and the positioning assembly in the material conveying device shown in Figure 1

[0022] The top view of the carrying assembly and the positioning assembly shown in Figure 3 Figure 2 The shaft view schematic diagram of the positioning assembly in the material conveying device shown in

[0023] Figure 4 Figure 2 The side view of the positioning assembly shown in

[0024] Figure 5 The sectional view of the positioning assembly along the line A-A shown in Figure 4

[0025] Figure 6 Figure 5

[0026] Figure 7 ​​​​​A schematic diagram of the distribution of positioning components and carrying components provided in another embodiment of the present application.

[0027] Figure 8 for Figure 6 Schematic diagram of the distribution of positioning components and carrying components shown.

[0028] Figure 9 for Figure 4 A top view of the positioning assembly is shown.

[0029] Figure 10 for Figure 1 Axonometric diagram of the handling components of the conveyor system shown.

[0030] Reference numerals: 10, feeding device; 20, workpiece; 100, transport assembly; 101, avoidance space; 102, transport channel; 110, transport component; 111, rotating shaft; 112, transport circumferential member; 113, transport driver; 114, transmission structure; 120, stand; 200, positioning assembly; 201, positioning group; 210, connecting frame; 211, connecting channel; 212, first frame; 213, second frame; 220, positioning Block; 221, positioning surface; 230, attraction member; 231, contact surface; 240, lifting drive; 250, blocking member; 300, transport assembly; 301, transport hand; 310, gantry; 320, first drive module; 330, second drive module; 340, third drive module; 350, sliding frame; 360, picking member; 400, base; S1, first direction; S2, second direction; S3, lifting direction; PL, conveying plane. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms 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 application and simplifying the description, and do not 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 a limitation on the application.

[0033] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0034] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0035] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0037] An embodiment of the present application provides an appearance inspection device that can be used to perform appearance inspection and dimension measurement on a workpiece. Figure 1 , Figure 1 An axonometric schematic diagram of a feeding device provided in an embodiment of the present application is shown. The appearance inspection equipment includes a feeding device 10, which is used to transport a workpiece 20. The feeding device 10 also has a positioning function to position the workpiece 20 to be inspected, providing a basis for high-precision inspection.

[0038] In one embodiment, the appearance inspection equipment further includes an inspection device configured to inspect the workpiece 20. As one example, the feeder 10 can be configured as a loader, i.e., the feeder 10 can transfer the workpiece 20 to be inspected to the inspection device so that the inspection device can inspect the workpiece. Of course, the feeder 10 is not limited to being configured as a loader. The feeder 10 can also be a feeder, i.e., a material transfer device configured to receive the workpiece 20 transferred by the inspection device and transfer the inspected workpiece 20 transferred by the inspection device to another workstation.

[0039] See also Figures 1 to 4 One embodiment of the present application provides a material conveying device 10, which includes a transport assembly 100 and a positioning assembly 200. The transport assembly 100 is used to transport a workpiece 20 along a first direction S1, and the positioning assembly 200 is capable of positioning the workpiece 20. The transport assembly 100 has a clearance space 101. The positioning assembly 200 is located below the transport assembly 100 and extends through the clearance space 101. Therefore, when the workpiece 20 is transported by the transport assembly 100 to the area where the positioning assembly 200 is located, the positioning assembly 200 can position it.

[0040] The positioning assembly 200 includes a connecting frame 210, a positioning block 220 and an attracting member 230. The positioning block 220 and the attracting member 230 are arranged on the connecting frame 210. Figure 4 and Figure 6The at least two positioning blocks 220 are arranged in the second direction S2 and are spaced apart on the connecting frame 210. The at least two positioning blocks 220 arranged in the second direction S2 have positioning surfaces 221 facing each other. The positioning surfaces 221 arranged in the second direction S2 gradually move away from each other in the lifting direction S3 of the connecting frame 210. The second direction S2 intersects the first direction S1. That is, the distance between the two positioning surfaces 221 arranged in the second direction S2 gradually increases in the lifting direction S3 of the connecting frame 210. The distance between the two positioning surfaces 221 arranged in the second direction S2 is relatively large in the upper region and is relatively small in the lower region. The suction member 230 is arranged between the two positioning blocks 220. The suction member 230 is configured to form a negative pressure in the space between the two positioning surfaces 221 arranged in the second direction S2.

[0041] The connecting frame 210 moves between the avoiding position and the positioning position in the lifting direction S3. When the connecting frame 210 is in the avoiding position, the positioning blocks 220 and the suction member 230 are below the conveying plane PL of the carrying assembly 100, and thus do not interfere with the movement of the workpiece 20 on the carrying assembly 100. When the connecting frame 210 is in the positioning position, at least part of the structure of the positioning blocks 220 is on the side of the conveying plane PL facing the workpiece 20, and the positioning surfaces 221 are configured to abut against the workpiece 20. In this way, when the connecting frame 210 moves from the avoiding position to the positioning position, the positioning blocks 220 can rise to the position of the conveying plane PL through the avoiding space 101 and pass through the conveying plane PL, so that the positioning surfaces 221 can contact and abut against the workpiece 20 when the connecting frame 210 is in the positioning position. As described above, because the distance between the two positioning surfaces 221 arranged in the second direction S2 is relatively large in the upper region and is relatively small in the lower region, the positioning surfaces 221 can gradually push the workpiece 20 during the rising process, so that the workpiece 20 is positioned. In addition, the suction member 230 is configured to form a negative pressure in the space between the two positioning surfaces 221 arranged in the second direction S2, so that the workpiece 20 between the two positioning surfaces 221 always has a movement trend of moving close to the suction member 230, so as to sufficiently guide the movement of the workpiece 20 relative to the positioning surfaces 221 and sufficiently exert the guiding and positioning effect of the positioning surfaces 221. In the present application, the conveying device 10 simultaneously has the carrying assembly 100 and the positioning assembly 200. When the workpiece 20 is carried to the area of the positioning assembly 200, the positioning assembly 200 can position the workpiece 20, so that the workpiece 20 is accurately positioned at the expected position and is picked up by the member (i.e., the handling assembly 300 to be described below) for transferring the workpiece 20. Compared with the positioning mode in the prior art, the conveying device 10 provided by the present application can position the workpiece 20 when the workpiece 20 is carried to the positioning assembly 200 by the carrying assembly 100, without the need to configure an additional positioning station and without the need to perform an additional action of transferring the workpiece 20 to an independent positioning station. Therefore, the structure is simplified and the action required to be performed by the conveying device 10 is reduced, and the workpiece 20 is transferred efficiently.

[0042] It is emphasized that for the workpiece 20 with the characteristics of thin sheet, light weight and large surface area, the self-gravity of the workpiece 20 is sometimes insufficient to make the workpiece 20 move relative to the positioning surface 221 during the lifting of the positioning block 220, and the workpiece 20 is prone to be stuck in an unintended position relative to the positioning block 220. In this regard, the positioning assembly 200 provided by the present application has an attracting member 230, and the attracting member 230 can sufficiently guide the workpiece 20 to move to the intended position relative to the positioning surface 221 through the attracting action of the attracting member 230, so as to sufficiently exert the guiding and positioning action of the positioning surface 221. In other words, during the lifting of the connecting frame 210, when the positioning surface 221 contacts the workpiece 20, the workpiece 20 will move relative to the positioning surface 221 under the dual action of the self-gravity and the attracting force, and will be accurately positioned at the intended position under the guidance of the positioning surface 221. In this way, the stability and effectiveness of the positioning action provided by the positioning assembly 200 can be improved.

[0043] As Figure 4 and Figure 6 According to the change in the amplitude at which the positioning surfaces 221 arranged opposite to each other move away from each other, the positioning surfaces 221 can be configured as inclined surfaces, convex curved surfaces or concave curved surfaces, etc.

[0044] Please continue to refer to Figure 1 In an embodiment, the material conveying device 10 further comprises a carrying assembly 300, and the carrying assembly 300 is used to pick up and transfer the workpiece 20 positioned by the positioning assembly 200. It can be understood that the positioning of the workpiece 20 can be completed after the positioning block 220 is lifted and contacts the workpiece 20. The carrying assembly 300 can act synchronously with the positioning assembly 200, and immediately picks up the workpiece 20 after the positioning assembly 200 positions the workpiece 20, and then transfers the workpiece 20 to another work station. Further, at least when the carrying assembly 300 picks up and transfers the workpiece 20, the attracting member 230 removes the negative pressure attracting action, so as to avoid interfering with the carrying action of the carrying assembly 300.

[0045] In an embodiment, the attracting member 230 can be connected to a negative pressure generator (not shown in the figure, the same below) so as to form a negative pressure between the two positioning surfaces 221 arranged opposite to each other.

[0046] Please refer to Figures 4 to 6In one embodiment, the attracting member 230 can also be used to contact the workpiece 20 to support and pick up the workpiece 20, thereby improving the positioning effect of the workpiece 20. The attracting member 230 can be configured as a flexible body to reduce the damage that the workpiece 20 can suffer when the attracting member 230 contacts the workpiece 20. Further, the attracting member 230 has a negative pressure forming hole 232, which is blocked by the workpiece 20 when the connecting frame 210 is in the positioning position, and the attracting member 230 is used to contact the workpiece 20. That is, when the connecting frame 210 is in the positioning position, at least part of the structure of the attracting member 230 is located on the side of the conveying plane PL facing the workpiece 20. When the attracting member 230 contacts the workpiece 20 and the negative pressure forming hole 232 thereof is blocked by the workpiece 20, the workpiece 20 is accurately positioned. By using the flexible attracting member 230 as a reference for positioning, the damage that the workpiece 20 can suffer can be reduced. As one example, the attracting member 230 can be configured as a suction cup.

[0047] It should be noted that the attracting member 230 can also be configured not to contact the workpiece 20. Thus, when the connecting frame 210 is in the positioning position, the attracting member 230 can be located in the avoiding space 101, or the attracting member 230 can be completely located below the carrying assembly 100.

[0048] Please refer to Figure 6 In one embodiment, the attracting member 230 has a contact surface 231. In the lifting direction S3, the contact surface 231 is higher than or level with the bottom side of the positioning surface 221. Thus, during the process of the attracting member 230 and the positioning block 220 rising synchronously with the connecting frame 210, the contact surface 231 can contact the workpiece 20 before or at the same time as the bottom side of the positioning surface 221, so that the workpiece 20 is positioned. In this way, the workpiece 20 can be guided by the positioning surface 221 during the entire positioning process.

[0049] Further, the contact surface 231 can be configured as a plane, or at least part of the contact surface 231 is configured as a plane. Alternatively, the side of the contact surface 231 used to contact the workpiece 20 is located in the same plane.

[0050] Please refer to Figure 6 In one embodiment, the number of attracting members 230 is multiple, and the contact surfaces 231 of the multiple attracting members 230 can be coplanar, and the multiple attracting members 230 collectively serve as the positioning reference of the workpiece 20. It can be understood that the multiple attracting members 230 collectively guide the workpiece 20 to move along the positioning surface 221, which can improve the uniformity of the stress between the layout regions of the workpiece 20, and facilitate the workpiece 20 to accurately and stably move to the desired position.

[0051] Please refer to Figure 6In one embodiment, the connecting frame 210 has a communication channel 211, which connects the suction member 230 and the negative pressure generator, allowing the negative pressure generator to be easily connected to the suction member 230. This reduces the number of external pipes and reduces the probability of pipe entanglement during the lifting and lowering movement of the connecting frame 210.

[0052] See also Figure 5 , combined with Figure 1 In one embodiment, the feeding device 10 further includes a base 400, on which the carrier assembly 100, the positioning assembly 200, and the transport assembly 300 are respectively disposed. The positioning assembly 200 further includes a lifting actuator 240, which is disposed on the base 400 and connected to the connecting frame 210 to drive the positioning block 220 and the suction member 230 disposed on the connecting frame 210 to move synchronously along the lifting direction S3.

[0053] See also Figure 7 In one embodiment, the transport assembly 100 includes a transport component 110, which is used to transport the workpiece 20 along the first direction S1. Along the second direction S2, the avoidance spaces 101 are respectively distributed on opposite sides of the transport component 110. That is to say, the two positioning blocks 220 arranged opposite to each other, and the positioning surfaces 221 of the two positioning blocks 220 can be located on opposite sides of the transport component 110 in a clamped posture. At this time, the workpiece 20 transported by the transport component 110 can extend relative to the transport component 110, so that when the positioning block 220 rises, the positioning surface 221 can abut the part of the workpiece 20 extending relative to the transport component 110 to position the workpiece 20. In this embodiment, the approximate path of the negative pressure provided by the suction member 230 is as follows: Figure 7 As shown in Q. It should be emphasized that Figure 7 The relative positions of the various components of the positioning assembly 200 and the carrier 110 are shown for illustrative purposes only and are not intended to limit the actual sizes or size ratios of the positioning assembly 200 and the carrier 110. Those skilled in the art may configure the sizes and shapes of the various components of the positioning assembly 200 and the carrier 110 accordingly based on different requirements, such as actual positioning requirements, negative pressure suction requirements, and workpiece 20 transport requirements.

[0054] See also Figure 3In one embodiment, the carrying assembly 100 comprises a plurality of carrying members 110, which are cooperated to carry the workpiece 20 along the first direction S1. The plurality of carrying members 110 are arranged side by side, and at least some of the carrying members 110 are provided with the clearance space 101 as described above. During the movement of the connecting frame 210 along the lifting direction S3, the positioning block 220 at least in the positioning position penetrates the clearance space 101 to contact and position the workpiece 20. It can be understood that, in the case that the attracting member 230 is used to contact the workpiece 20, when the connecting frame 210 is in the positioning position, the attracting member 230 also penetrates the clearance space 101 to contact the workpiece 20.

[0055] In one of the embodiments, the carrying member 110 can be configured as a friction wheel type carrying mechanism, a roller type carrying mechanism or a conveyor belt type carrying mechanism.

[0056] Please refer to Figure 2 and Figure 3 In one embodiment, the carrying assembly 100 further comprises a stand 120, which is arranged on the base 400, and the carrying member 110 is arranged on the stand 120. As Figure 3 When the carrying member 110 is configured as a friction wheel type carrying mechanism or a roller type carrying mechanism, the carrying member 110 comprises a rotating shaft 111 and a plurality of conveying circumferential members 112, which are sleeved on the rotating shaft 111, and the conveying circumferential members 112 are used to contact the workpiece 20. When the rotating shaft 111 rotates, the rotating shaft 111 can drive the plurality of conveying circumferential members 112 to rotate together, so that the workpiece 20 is conveyed along the tangential direction (i.e. the first direction S1) of the conveying circumferential members 112. The plurality of rotating shafts 111 are arranged side by side along the first direction S1 on the stand 120, and the adjacent rotating shafts 111 are spaced apart to form the clearance space 101. That is, the space between the adjacent rotating shafts 111 can be used for the lifting movement of the positioning block 220 and the attracting member 230. Thus, during the movement of the connecting frame 210 to the positioning position, the positioning block 220 and the attracting member 230 can be lifted above the conveying plane PL of the carrying assembly 100 through the clearance space 101 to position the workpiece 20. During the movement of the connecting frame 210 to the avoiding position, the positioning block 220 and the attracting member 230 can be retracted below the conveying plane PL of the carrying assembly through the clearance space 101 to avoid interference with the movement of the workpiece 20.

[0057] Further, the carrying member 110 further comprises a carrying driver 113, which is connected with the rotating shaft 111. The carrying driver 113 drives the rotating shaft 111 to rotate, so as to drive the plurality of conveying circumferential members 112 to rotate circumferentially to convey the workpiece 20 along the first direction S1.

[0058] Further, the carrying member 110 further comprises a transmission structure 114, which can be connected to the plurality of rotating shafts 111. The carrying driver 113 is connected to the transmission structure 114, or the carrying driver 113 is connected to one or more rotating shafts 111. Thus, under the driving of the carrying driver 113, the plurality of rotating shafts 111 can rotate synchronously to jointly transport the workpiece 20. The transmission form of the transmission structure 114 can be configured as a belt transmission, a magnetic wheel transmission, a gear meshing transmission, etc., which is not limited herein.

[0059] As one of the examples, when the carrying member 110 is configured as a friction wheel type carrying mechanism, the conveying circumferential member 112 is a friction wheel; when the carrying member 110 is configured as a roller type carrying mechanism, the conveying circumferential member 112 is a roller. Of course, the carrying member 110 can also be configured as other conveying modes allowing the adjacent carrying members 110 to have the avoiding space 101. The conveying plane PL in each embodiment can be a plane formed by the tangent lines (i.e., the tangent lines on the upper side) of the plurality of conveying circumferential members 112 for contacting the workpiece 20.

[0060] It is easy to understand that, in the above embodiments, the plurality of carrying members 110 are arranged side by side and spaced apart in the first direction S1. However, the present application is not limited thereto, and please refer to Figure 8 As another example, the carrying member 110 can also be configured as a conveying belt type carrying mechanism, and at this time, the plurality of carrying members 110 can also extend along the first direction S1 and are arranged side by side in the direction perpendicular to the first direction S1. Further, the carrying member 110 comprises a first wheel (not shown in the figure, the same below), a second wheel (not shown in the figure, the same below), and a conveying belt (not shown in the figure, the same below), the first wheel and the second wheel are distributed spaced apart in the first direction S1, and the conveying belt is wound on the first wheel and the second wheel to extend along the first direction S1. The plurality of carrying members 110 are arranged spaced apart in the direction perpendicular to the first direction S1 to form the avoiding space 101, and the two positioning blocks 220 arranged opposite to each other pass through different avoiding spaces 101. That is, in the present embodiment, the carrying member 110 can be configured as a plurality of conveying belts extending along the first direction S1, and the adjacent conveying belts are arranged spaced apart to form the avoiding space 101. In the present embodiment, the mounting frame can be arranged outside the area where the positioning assembly 200 is located to mount the first wheel and the second wheel and not to block the lifting movement of the connecting frame 210, the positioning block 220, and the attracting member 230.

[0061] Further, the plurality of carrying members 110 can be arranged spaced apart and side by side in the second direction S2.

[0062] As Figure 8As shown, in one embodiment, when the attracting member 230 is used to contact the workpiece 20 , the attracting member 230 can also be disposed in the avoidance space 101 between adjacent carrying components 110 to rise to contact the workpiece 20 and to fall to avoid the conveying path of the workpiece 20 .

[0063] See also Figure 9 In one embodiment, a plurality of attracting members 230 are arranged in an array along the first direction S1 and the second direction S2. Along the first direction S1, the spacing between adjacent attracting members 230 is the same, and along the second direction, the spacing between adjacent attracting members 230 is also the same. In short, the plurality of attracting members 230 are evenly spaced to provide a uniformly distributed attraction force for the workpiece 20, improve the regional uniformity of the attraction effect, and facilitate positioning. Moreover, in the second direction S2, the attracting members 230 located at the two side edges of the array of attracting members 230 are at the same distance from the positioning blocks 220 located on both sides. In other words, the array formed by the plurality of attracting members 230 as a whole is at the same distance from the two positioning blocks 220 arranged opposite to each other. Therefore, for the two positioning blocks 220 respectively, the array of attracting members 230 can provide a more uniform adsorption and traction effect, so that the two positioning blocks 220 can provide roughly the same guiding and positioning effect for the workpiece 20.

[0064] It should be noted that the avoidance spaces 101 described in each embodiment are formed by the carrier members 110 being arranged at intervals in the first direction S1 or the second direction S2. Therefore, the multiple attracting members 230 arranged in an array in the first direction S1 and the second direction S2 can conveniently move up and down through each avoidance space 101. The multiple attracting members 230 distributed along the first direction S1 are referred to as attracting members 230 in a row, and the multiple attracting members 230 distributed along the second direction S2 are referred to as attracting members 230 in a row.

[0065] like Figure 3 As one example, the same row of attracting members 230 may be located in the same avoidance space 101 , and the attracting members 230 in the same column of attracting members 230 may be located in different avoidance spaces 101 .

[0066] like Figure 8 As another example, the attracting members 230 in the same row may be located in the same avoidance space 101 , and the attracting members 230 in the same row may be located in different avoidance spaces 101 .

[0067] See also Figure 9In one embodiment, the plurality of positioning blocks 220 can also be arranged in an array along the first direction S1 and the second direction S2. Along the first direction S1, the spacing between adjacent positioning blocks 220 is the same, and along the second direction S2, the spacing between adjacent positioning blocks 220 is also the same. In short, the plurality of positioning blocks 220 are evenly spaced to collectively position the workpiece 20. Especially for a thin workpiece 20, the plurality of evenly spaced positioning blocks 220 collectively position the workpiece 20, which can reduce the interference with the movement of the workpiece 20 on the carrier member 110 while ensuring the overall positioning effect of the workpiece 20.

[0068] Similarly to the attraction member 230, the plurality of positioning blocks 220 arranged in an array along the first direction S1 and the second direction S2 can be conveniently lifted by the respective avoidance space 101. The plurality of positioning blocks 220 distributed along the first direction S1 are referred to as the same column positioning blocks 220, and the plurality of positioning blocks 220 distributed along the second direction S2 are referred to as the same row positioning blocks 220.

[0069] As Figure 3 one example, the same row positioning blocks 220 can be located in the same avoidance space 101, and each of the same column positioning blocks 220 can be located in a different avoidance space 101.

[0070] As Figure 8 another example, the same column positioning blocks 220 can be located in the same avoidance space 101, and each of the same row positioning blocks 220 can be located in a different avoidance space 101.

[0071] Please refer to Figure 9 in combination with Figure 5 In one embodiment, the connecting frame 210 includes a first frame body 212 and a plurality of second frame bodies 213, the plurality of second frame bodies 213 are spaced apart along the first direction S1 from the first frame body 212, and the first frame body 212 is connected with the lifting driver 240 to be driven to move between the positioning position and the avoidance position. The two positioning blocks 220 arranged opposite to each other form a positioning group 201, and the plurality of positioning groups 201 are correspondingly arranged on the plurality of second frame bodies 213. In combination with Figure 3 It can be understood that the plurality of second frame bodies 213 corresponding to the support positioning assembly 200 are spaced apart along the first direction S1, so as to be conveniently arranged in the plurality of evenly spaced avoidance spaces 101.

[0072] In combination with the aforementioned arrangement of the array of positioning blocks 220, that is, the same row positioning blocks 220 form the same positioning group 201, and the plurality of positioning groups 201 are spaced apart along the first direction S1 to respectively position the local area of the workpiece 20 along the first direction S1. The plurality of positioning groups 201 cooperate to collectively position the workpiece 20.

[0073] Referring to Figure 2 and Figure 3 In one embodiment, the positioning assembly 200 further comprises a blocking member 250, which is arranged on the base 400 or the connecting frame 210. In the first direction S1, at least one side region of the connecting frame 210 is distributed with the blocking member 250. At least when the connecting frame 210 is in the positioning position, at least part of the structure of the blocking member 250 is located on the side of the conveying plane PL facing the workpiece 20, so that the blocking member 250 can block the workpiece 20 moving in the first direction S1 on the conveying plane PL to be positioned. That is, at least when the connecting frame 210 is raised, the blocking member 250 can abut in the first direction S1 to block the workpiece 20, so that the workpiece 20 is positioned in the first direction S1. In this embodiment, the positioning assembly 200 can position the workpiece 20 in the first direction S1 and the second direction S2 at the same time through the positioning block 220 and the blocking member 250, so that the workpiece 20 is completely positioned in the plane determined by the first direction S1 and the second direction S2 (i.e., the conveying plane PL).

[0074] As one of the examples, the blocking member 250 can be directly fixed on the base 400 to position the workpiece 20 conveyed in the first direction S1. Please continue to refer to Figure 3 , in combination with Figure 2 In the first direction S1, the blocking member 250 is located at the downstream end of the carrying assembly 100, and at least part of the structure of the blocking member 250 is located on the side of the conveying plane PL facing the workpiece 20. Thus, when the workpiece 20 on the conveying plane PL is carried by the carrying assembly 100 to abut the blocking member 250, the workpiece 20 is positioned in the first direction S1. At this time, by further operating the positioning assembly 200 to be raised, the position of the workpiece 20 in the second direction S2 can be positioned, so that the workpiece 20 is completely positioned.

[0075] As another example, the connecting frame 210 is movably arranged on the base 400. At least two blocking members 250 are arranged on the connecting frame 210 in the first direction S1 and are spaced apart. The at least two blocking members 250 arranged in the first direction S1 have limiting surfaces (not shown) facing each other. The limiting surfaces arranged in the first direction S1 gradually move away from each other in the lifting direction S3, i.e., the opening degree between the limiting surfaces arranged in the first direction S1 gradually increases. When the connecting frame 210 is in the positioning position, at least part of the structure of the blocking member 250 is located on the side of the conveying plane PL facing the workpiece 20, and the limiting surface can abut against the workpiece 20. In short, at this time, the blocking member 250 has a similar positioning effect as the positioning block 220. After the positioning assembly 200 is lifted, the two blocking members 250 arranged in the first direction S1 position the workpiece 20 in the first direction S1, and the two positioning blocks 220 arranged in the second direction S2 position the workpiece 20 in the second direction S2. When the connecting frame 210 moves to the avoiding position, the positioning block 220 and the blocking member 250 are retracted downward synchronously to avoid the conveying path of the workpiece 20.

[0076] Please refer to Figure 10 In an embodiment, the carrying assembly 300 includes a gantry 310, a first driving module 320, a second driving module 330, a third driving module 340, a sliding frame 350, and a pickup member 360. The gantry 310 is arranged above the conveying assembly 100 and is substantially aligned with the positioning assembly 200 in the lifting direction S3. The first driving module 320, the second driving module 330, the third driving module 340, the sliding frame 350, and the pickup member 360 are all arranged on the gantry 310.

[0077] Further, the third driving module 340 is arranged on the sliding frame 350, and the third driving module 340 is connected with the pickup member 360 to drive the pickup member 360 to move closer to and away from the conveying plane PL of the conveying assembly in the lifting direction S3, so as to pick the positioned workpiece 20. The first driving module 320 is arranged on the gantry 310, and the first driving module 320 is connected with the second driving module 330 to drive the second driving module 330 to move in the second direction S2. The second driving module 330 is connected with the sliding frame 350 to drive the sliding frame 350 to move in the first direction S1. Thus, under the action of the carrying assembly 300, the workpiece 20 can move in the first direction S1, the second direction S2, and the lifting direction S3. The first direction S1, the second direction S2, and the lifting direction S3 are perpendicular to each other.

[0078] Further, the first direction S1, the second direction S2, and the lifting direction S3 are perpendicular to each other.

[0079] Please continue to refer to Figure 10In one embodiment, the second driving module 330, the third driving module 340, the sliding frame 350, and the pickup 360 are collectively referred to as a handling hand 301. The handling assembly 300 can include a plurality of handling hands 301, each of which is connected to the first driving module 320. The plurality of handling hands 301 collectively handle the workpieces 20 transported by the carrying assembly 100, thereby improving the handling efficiency. In one embodiment, the number of handling hands 301 can be two. The first driving module 320 can be configured as a double-mover linear motor module to independently drive the two handling hands 301 to move. Of course, the handling hands 301 can have other numbers, and the first driving module 320 can also be configured as other forms of driving modules.

[0080] Please refer again to Figure 2 and Figure 3 In one embodiment, the material conveying device 10 can include a plurality of positioning assemblies 200, which can correspond to the same carrying component 110. For example, the carrying component 110 can have a plurality of conveying channels 102, each of which is arranged side by side along the second direction S2. The plurality of positioning assemblies 200 correspond to the plurality of conveying channels 102 respectively to position the workpieces 20 in each conveying channel 102.

[0081] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0082] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A feeding device, characterized in that: The feeding device comprises: A carrying assembly having an avoidance space, and configured to transport a workpiece along a first direction; A positioning assembly is located below the carrier assembly and passes through the avoidance space, and includes: A connecting frame that moves between a avoiding position and a positioning position along a lifting direction; Positioning blocks, at least two of the positioning blocks are arranged on the connecting frame in a direction facing each other and spaced apart from each other, and at least two of the positioning blocks arranged in a direction facing each other have positioning surfaces on their sides, and the positioning surfaces arranged in a direction facing each other gradually move away from each other in an upward direction along the lifting direction of the connecting frame, and the second direction intersects with the first direction; an attracting member, the attracting member being provided on the connecting frame and located between the positioning blocks, the attracting member being used to form a negative pressure in a space sandwiched between the positioning surfaces arranged opposite to each other; When the connecting frame is in the avoidance position, the positioning block and the attracting member are located below the conveying plane of the carrying assembly; When the connecting frame is in the positioning position, at least a portion of the structure of the positioning block is located on a side of the conveying plane facing the workpiece, and the positioning surface is used to abut against the workpiece.

2. The feeding device according to claim 1, characterized in that: The suction member is constructed as a flexible body and has a negative pressure forming hole. When the connecting frame is in the positioning position, the suction member is used to contact the workpiece, and the negative pressure forming hole is blocked by the workpiece.

3. The feeding device according to claim 2, characterized in that: The attracting member has a contact surface. In the lifting direction, the contact surface is higher than the bottom side of the positioning surface, or is at the same height as the bottom side of the positioning surface.

4. The feeding device according to claim 1, characterized in that: There are multiple attracting members, and the multiple attracting members are arranged in an array along the first direction and the second direction. Along the first direction, the intervals between adjacent attracting members are the same, and along the second direction, the intervals between adjacent attracting members are also the same. In the second direction, the distances between the attracting members located at the two side edges in the array of the attracting members and the positioning blocks located on both sides are equal, the intervals between adjacent attracting members along the first direction are the same, and the intervals between adjacent attracting members along the second direction are the same.

5. The feeding device according to claim 1, characterized in that: The connecting frame has a communication flow channel, and the communication flow channel is connected with the suction component and the negative pressure generator.

6. The feeding device according to claim 1, characterized in that: The positioning assembly includes a lifting drive, the connecting frame includes a first frame and a plurality of second frames, the plurality of second frames are spaced apart from the first frame along the first direction, and the first frame is connected to the lifting drive and driven to move between the positioning position and the avoidance position; The two positioning blocks arranged facing each other constitute a positioning group, and a plurality of the positioning groups are arranged on a plurality of the second frames in a one-to-one correspondence.

7. The feeding device according to claim 1, characterized in that: The carrying assembly includes a plurality of carrying components, the plurality of carrying components are arranged side by side, and at least some of the carrying components have the avoidance space between them; During the movement of the connecting frame along the lifting direction, at least the positioning block at the positioning position passes through the avoidance space.

8. The feeding device according to claim 7, characterized in that: The carrying component is configured as a friction wheel type carrying mechanism or a roller type carrying mechanism, the carrying assembly further includes a stand, the carrying component includes a rotating shaft and a conveying circumferential member, a plurality of the conveying circumferential members are sleeved on the rotating shaft, a plurality of the rotating shafts are arranged side by side on the stand along the first direction, and adjacent rotating shafts are spaced apart to form the avoidance space; or The carrying component is configured as a conveyor belt carrying mechanism, and the carrying component includes a first wheel, a second wheel and a conveyor belt. The first wheel and the second wheel are spaced apart in the first direction. The conveyor belt is wrapped around the first wheel and the second wheel to extend along the first direction. Multiple carrying components are spaced apart in a direction perpendicular to the first direction to form the avoidance space, and the two positioning blocks arranged opposite to each other pass through different avoidance spaces.

9. The feeding device according to claim 1, characterized in that: The feeding device also includes a base, and the positioning assembly also includes a blocking member, which is arranged on the base or the connecting frame. Along the first direction, the blocking member is distributed on at least one side area of ​​the connecting frame. At least when the connecting frame is in the positioning position, at least part of the structure of the blocking member is located on the side of the conveying plane facing the workpiece.

10. The feeding device according to claim 9, characterized in that: Along the first direction, the blocking member is located at the downstream end of the carrier assembly, the blocking member is fixed to the base, and at least a portion of the blocking member is located on a side of the conveying plane facing the workpiece; or The connecting frame is movably provided on the base, and at least two of the blocking members are provided on the connecting frame facing each other and at intervals along the first direction. The at least two blocking members facing each other have limiting surfaces on their sides facing each other, and the limiting surfaces facing each other gradually move away from each other upward along the lifting direction. When the connecting frame is in the positioning position, at least part of the structure of the blocking member is located on the side of the conveying plane facing the workpiece, and the limiting surface is used to abut the workpiece.

11. The feeding device according to claim 1, characterized in that: The feeding device further includes a transporting assembly, which is used to pick up and transfer the workpiece positioned by the positioning assembly.

12. An appearance inspection device, characterized in that: The appearance inspection equipment includes the feeding device according to any one of claims 1 to 11.

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