A top locking online turnover device

Abstract

The utility model relates to the technical field of transportation operation, and specifically discloses a top locking online turnover device for fixing small workpieces into workpiece grooves on the bottom surface of large workpieces, comprising: a rotating side plate; a conveying device comprising a conveyor belt and a supporting boss; a main pressing device for pressing large workpieces on the conveyor belt; a turnover driving assembly for driving the conveying device and the main pressing device to turn upside down through the rotating side plate so that the workpiece grooves are arranged upward; and a secondary pressing device for pressing small workpieces in the workpiece grooves into the workpiece grooves. The top locking online turnover device can turn workpieces online and assist in completing the top locking operation, thereby shortening the material circulation path and meeting the market demand for top locking.

Description

Technical Field

[0001] This utility model relates to the field of transportation operation technology, and in particular to an online flipping device for top locking. Background Technology

[0002] Generally, when a large workpiece arrives from upstream, its top surface is facing upwards. When it is necessary to install a small workpiece into the workpiece groove on the bottom surface of the large workpiece, the steps are as follows:

[0003] The conveyor belt transports large workpieces to designated workstations;

[0004] The robotic arm picks it up and flips it 180° so that the workpiece groove on the bottom of the large workpiece faces upward, and then places it on an independent assembly platform.

[0005] Subsequently, the robotic arm picks up the small workpiece and places it in the workpiece slot of the inverted large workpiece. Then, it uses an assembly bolt to pass through the small workpiece and connect it to the threaded connection of the large workpiece, thereby completing the bolt fastening between the small workpiece and the large workpiece.

[0006] Finally, the robotic arm needs to grab the assembled component again and perform a second 180° flip to restore the large workpiece to its original posture before it can be placed back on the conveyor belt and transported downstream.

[0007] This process has significant drawbacks:

[0008] First, the material flow path is significantly lengthened and the process is complicated: large workpieces are repeatedly turned over - they need to be transferred from the conveyor belt to the flipping station, then to the assembly station, and finally flipped and put back on the conveyor belt. Large workpieces are separated from the continuously running conveyor belt system, causing a forced stop in the entire line's rhythm.

[0009] Secondly, the assembly bolt can only pass through the small workpiece and then be threaded to the large workpiece. This bottom locking structure will cause the head of the assembly bolt to be located below the small workpiece, which is not conducive to improving the flatness of the bottom surface of the product. In recent years, the market has clearly favored the top locking structure (that is, the assembly bolt passes through the large workpiece from top to bottom and then is threaded to the small workpiece, so that the head of the assembly bolt is located above the large workpiece). Therefore, the market size of products with top locking structure has been expanding year by year.

[0010] Therefore, this utility model is dedicated to developing an online flipping device for top locking, which is used to flip the workpiece online and assist in completing the top locking operation, thereby shortening the material flow path and meeting the market demand for top locking.

[0011] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0012] One objective of this invention is to provide an online flipping device for top locking, which can flip the workpiece online and assist in completing the top locking operation, thereby shortening the material flow path and meeting the market demand for top locking.

[0013] To achieve the above objectives, this utility model provides a workpiece groove for fixing a small workpiece to the bottom surface of a large workpiece, comprising:

[0014] Rotate side panel;

[0015] A conveying device, which is mounted on the rotating side plate, includes a conveyor belt and a support boss located below the conveyor belt;

[0016] A main clamping device is mounted on the rotating side plate and is used to press down on the large workpiece located on the conveyor belt in conjunction with the support boss.

[0017] A flipping drive assembly, wherein the drive end of the flipping drive assembly is connected to the rotating side plate, and is used to drive the conveying device and the main pressing device to flip up and down through the rotating side plate so that the workpiece groove is set facing upward;

[0018] A secondary clamping device is installed on the rotating side plate and located on the side of the support boss away from the main clamping device, for pressing the small workpiece located in the workpiece groove into the workpiece groove.

[0019] Optionally, the conveyor belt includes an upper belt segment and a lower belt segment located below the upper belt segment and moving in the opposite direction to the upper belt segment;

[0020] The supporting boss is located below the upper belt segment and above the lower belt segment.

[0021] Optionally, the main clamping device includes:

[0022] The main lifting pressure plate is located above the upper belt section and is slidably disposed above and below the rotating side plate; wherein, the main lifting pressure plate is provided with bolt holes for assembly bolts to pass through;

[0023] A main pressure plate direct drive mechanism is mounted on the rotating side plate, and the drive end of the main pressure plate direct drive mechanism is connected to the main lifting pressure plate to drive the main lifting pressure plate to move up and down.

[0024] Optionally, the end of the main lifting pressure plate is provided with an extension that extends to the outside of the rotating side plate, and the outside of the rotating side plate and the extension are slidably connected by a slider guide rail assembly.

[0025] Optionally, the secondary clamping device includes:

[0026] A secondary lifting pressure plate is located below the large workpiece;

[0027] A vertical direct drive mechanism for the auxiliary pressure plate, wherein the drive end of the vertical direct drive mechanism for the auxiliary pressure plate is connected to the auxiliary lifting pressure plate to drive the auxiliary lifting pressure plate to move up and down;

[0028] A horizontal direct drive mechanism for the auxiliary pressure plate is mounted on the rotating side plate, and the drive end of the horizontal direct drive mechanism for the auxiliary pressure plate is connected to the vertical direct drive mechanism for the auxiliary pressure plate to drive the auxiliary lifting pressure plate to reciprocate horizontally.

[0029] Optional, also includes:

[0030] The first photoelectric sensor and the second photoelectric sensor are both communicatively connected to the flip drive assembly and are positioned on opposite sides of the rotation axis of the rotating side plate.

[0031] A light-blocking plate, which is fixed to the end of the rotating side plate;

[0032] When the top surface of the main clamping device faces upward, the light-blocking plate is located within the sensing area of ​​the first photoelectric sensor;

[0033] When the main pressing device rotates with the rotating side plate until the bottom surface faces upward, the light-blocking plate rotates with the rotating side plate into the sensing area of ​​the second photoelectric sensor.

[0034] Optionally, the bottom of the main lifting plate is provided with a positioning pin for inserting into the positioning hole of a large workpiece.

[0035] Optionally, the flip drive component includes:

[0036] A fixed upright plate is located on the outside of the rotating side plate;

[0037] A rotating ring is rotatably mounted on the inner side of the fixed upright plate and is synchronously connected to the rotating side plate.

[0038] A turntable drive mechanism is mounted on the fixed upright plate, and the drive end of the turntable drive mechanism is connected to the rotating ring drive mechanism. The rotating ring drive mechanism causes the rotating side plate to flip up and down relative to the fixed upright plate.

[0039] Optionally, a wire-passing hole is provided at the center of the rotating ring.

[0040] The beneficial effects of this utility model are as follows: It provides an online flipping device for top locking, in which the entire assembly process is carried out on the rotating side plate and the conveying and pressing devices it carries, realizing the in-situ flipping of large workpieces (without the need to transfer them to an independent assembly platform), and pressing small workpieces at the flipping position by the auxiliary pressing device, directly creating conditions for subsequent top locking operations, and greatly simplifying the material turnover process. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A schematic diagram of the top structure of the online flipping device for top locking provided in the embodiment;

[0043] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0044] Figure 3 A schematic diagram of the bottom structure of the online flipping device for top locking provided in the embodiment;

[0045] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.

[0046] In the picture:

[0047] 100. Large workpiece; 100a. Workpiece groove;

[0048] 1. Rotate the side panel;

[0049] 2. Conveying device; 201. Conveyor belt; 2011. Upper belt section; 2012. Lower belt section; 202. Support boss;

[0050] 3. Main clamping device; 301. Main lifting pressure plate; 3011. Positioning pin; 3012. Bolt through hole; 3013. Extension part; 302. Main pressure plate direct drive mechanism;

[0051] 4. Tilting drive assembly; 401. Fixed upright plate; 402. Rotating ring; 4021. Wire hole; 403. Turntable rotary drive mechanism;

[0052] 5. Secondary clamping device; 501. Secondary lifting pressure plate; 502. Vertical direct drive mechanism for secondary pressure plate; 503. Horizontal direct drive mechanism for secondary pressure plate;

[0053] 6. First photoelectric sensor;

[0054] 7. Second photoelectric sensor;

[0055] 8. Light-blocking sheet;

[0056] 9. Slider guide rail assembly. Detailed Implementation

[0057] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0058] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0059] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0060] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0061] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0062] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0063] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0064] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0065] The direct drive mechanism in this invention can be a linear motor, a cylinder, a hydraulic cylinder, or a motor lead screw and slider assembly, etc.; the rotary drive mechanism can be a servo motor, a stepper motor, or a rotary cylinder, etc.

[0066] See Figures 1-4 This embodiment provides an online flipping device for top locking, used to fix a small workpiece into the workpiece groove 100a on the bottom surface of a large workpiece 100, including:

[0067] Rotating side panel 1;

[0068] Conveying device 2, which is mounted on the rotating side plate 1, includes a conveyor belt 201 and a support boss 202 located below the conveyor belt 201;

[0069] Main clamping device 3, which is installed on the rotating side plate 1, is used to cooperate downward with the support boss 202 to clamp the large workpiece 100 located on the conveyor belt 201;

[0070] The flipping drive assembly 4 is connected to the rotating side plate 1 and is used to drive the conveying device 2 and the main pressing device 3 to flip up and down through the rotating side plate 1 so that the workpiece groove 100a is set facing upward.

[0071] A secondary clamping device 5 is installed on the rotating side plate 1 and located on the side of the support boss 202 away from the main clamping device 3, and is used to clamp the small workpiece located in the workpiece groove 100a into the workpiece groove 100a.

[0072] The online flipping device for top locking provided by this utility model works as follows:

[0073] S10: Initial conveying: The large workpiece 100 (with a workpiece groove 100a on its bottom surface and its top surface facing upwards initially) is conveyed to the designated workstation via the conveyor belt 201 of the conveying device 2. At this time, the support boss 202 is located below the conveyor belt 201, and subsequently provides lower support for the large workpiece 100.

[0074] S20: Main clamping and fixing: The main clamping device 3 is activated and moves downward, cooperating with the support boss 202 to clamp the large workpiece 100 on the conveyor belt 201 firmly in the current position.

[0075] S30: Online Flipping: The flipping drive assembly 4 is activated, and its drive end drives the rotating side plate 1 (along with all components fixed thereon) to flip 180° up and down. During the flipping process, the main clamping device 3 and the support boss 202 together keep the large workpiece 100 fixed. After the flipping is completed, the bottom surface of the large workpiece 100 faces upward, so that the workpiece groove 100a located on the bottom surface of the large workpiece 100 changes from downward to upward.

[0076] S40: Small workpiece placement and secondary clamping: After the flipping is completed and the workpiece groove 100a faces upward, the small workpiece is placed into the upward-facing workpiece groove 100a using external equipment such as an assembly robot. Then, the secondary clamping device 5 activates, clamping and fixing the small workpiece in the workpiece groove 100a to the bottom of the groove, maintaining its stable posture for subsequent top locking operations.

[0077] S50: Reset and flip: The flipping drive component 4 drives the rotating side plate 1 and its device to flip 180° up and down again, so that the conveying device 2 and the assembled components return to the initial posture (the top surface of the large workpiece 100 faces upward again).

[0078] S60: Top bolt locking: Using external equipment such as an assembly robot, the assembly bolt is inserted from top to bottom into the large workpiece and then locked to the small workpiece to complete the top locking operation.

[0079] S70: Release and reset: After the locking operation is completed, both the main clamping device 3 and the auxiliary clamping device 5 are released from the clamping state and lifted.

[0080] S80: Downstream: After the compression is released, the conveyor belt 201 of the conveying device 2 starts and transports the component that has been locked at the top to the downstream along the assembly line.

[0081] In summary, the entire assembly process is carried out on the rotating side plate 1 and the conveying device 2 and clamping device it carries, realizing the in-situ flipping of the large workpiece 100 (without transferring it to an independent assembly platform), and the small workpiece is clamped in the flipped position by the auxiliary clamping device 5, which directly creates conditions for the subsequent top locking operation and greatly simplifies the material turnover process.

[0082] In this embodiment, the conveyor belt 201 includes an upper belt segment 2011 and a lower belt segment 2012 located below the upper belt segment 2011 and moving in the opposite direction to the upper belt segment 2011;

[0083] The support boss 202 is located below the upper belt segment 2011 and above the lower belt segment 2012.

[0084] There is a certain gap between the support boss 202 and the upper belt section 2011. When the main pressing device 3 is not pressing the workpiece downwards, the bottom surface of the conveyor belt 201 is separated from the top surface of the support boss 202 to avoid affecting the conveyor belt 201's transport of the large workpiece 100. When the main pressing device 3 presses the large workpiece 100 downwards, the conveyor belt 201 is squeezed downwards and deformed, and then pressed together with the large workpiece 100 by the support boss 202 and the main pressing device 3.

[0085] In this embodiment, the main clamping device 3 includes:

[0086] The main lifting pressure plate 301 is located above the upper belt section 2011 and is slidably disposed with respect to the rotating side plate 1; wherein, the main lifting pressure plate 301 is provided with bolt through holes 3012 for assembly bolts to pass through;

[0087] The main pressure plate direct drive mechanism 302 is mounted on the rotating side plate 1, and the drive end of the main pressure plate direct drive mechanism 302 is connected to the main lifting pressure plate 301 to drive the main lifting pressure plate 301 to move up and down.

[0088] The main pressure plate direct drive mechanism 302 drives the main lifting pressure plate 301 to slide downward, which can cooperate with the support boss 202 to clamp the large workpiece 100 and the conveyor belt 201, thereby ensuring that the large workpiece 100 will not shift when it is flipped; conversely, the main pressure plate direct drive mechanism 302 drives the main lifting pressure plate 301 to slide upward, which can release the workpiece and the conveyor belt 201 so that the conveyor belt 201 can transport the large workpiece 100.

[0089] Furthermore, the end position of the main lifting pressure plate 301 is provided with an extension 3013 extending to the outside of the rotating side plate 1, and the outside of the rotating side plate 1 and the extension 3013 are slidably connected by the slider guide rail assembly 9.

[0090] In this embodiment, the auxiliary clamping device 5 includes:

[0091] A secondary lifting pressure plate 501 is located below the large workpiece 100;

[0092] A vertical direct drive mechanism 502 for the auxiliary pressure plate, wherein the drive end of the vertical direct drive mechanism 502 for the auxiliary lifting pressure plate 501 is connected to the auxiliary lifting pressure plate 501 to drive the auxiliary lifting pressure plate 501 to move up and down;

[0093] A horizontal direct drive mechanism 503 for the auxiliary pressure plate is installed on the rotating side plate 1, and the driving end of the horizontal direct drive mechanism 503 is connected to the vertical direct drive mechanism 502 for the auxiliary pressure plate to drive the auxiliary lifting pressure plate 501 to reciprocate horizontally.

[0094] Before the small workpiece is loaded, both the horizontal direct drive mechanism 503 and the vertical direct drive mechanism 502 of the auxiliary pressure plate are in a retracted state, and the auxiliary lifting pressure plate 501 is offset from the workpiece slot 100a to avoid affecting the loading of the small workpiece. After the small workpiece is loaded into the workpiece slot 100a, the horizontal direct drive mechanism 503 of the auxiliary pressure plate extends, so that the auxiliary lifting pressure plate 501 is directly facing the small workpiece. Finally, the vertical direct drive mechanism 502 of the auxiliary pressure plate extends, so that the auxiliary lifting pressure plate 501 cooperates with the large workpiece 100 to press the small workpiece, preventing the small workpiece from falling out of the workpiece slot 100a.

[0095] Optionally, the online flipping device for top locking also includes:

[0096] The first photoelectric sensor 6 and the second photoelectric sensor 7 are both communicatively connected to the flip drive assembly 4 and are located on both sides of the rotation axis of the rotating side plate 1.

[0097] A light-blocking plate 8 is fixed to the end of the rotating side plate 1;

[0098] When the top surface of the main pressing device 3 is facing upward, the light-blocking plate 8 is located within the sensing area of ​​the first photoelectric sensor 6; after the first photoelectric sensor 6 detects the light-blocking plate 8, it sends a signal to stop the operation of the flip drive assembly 4 and maintain the current horizontal state of the rotating side plate 1.

[0099] When the main pressing device 3 rotates with the rotating side plate 1 until the bottom surface faces upward, the light blocking plate 8 rotates with the rotating side plate 1 into the sensing area of ​​the second photoelectric sensor 7; after the second photoelectric sensor 7 detects the light blocking plate 8, it sends a signal, and the flip drive assembly 4 stops working, maintaining the current horizontal state of the rotating side plate 1.

[0100] Optionally, the bottom of the main lifting plate 301 is provided with a positioning pin 3011 for insertion into the positioning hole of the large workpiece 100. When the main plate direct drive mechanism 302 drives the main lifting plate 301 to move downward, the positioning pin 3011 is inserted into the positioning hole of the large workpiece 100, thereby achieving precise horizontal positioning of the large workpiece 100.

[0101] In this embodiment, the flip drive component 4 includes:

[0102] A fixed upright plate 401 is located on the outside of the rotating side plate 1;

[0103] A rotating ring 402 is rotatably mounted on the inner side of the fixed upright plate 401 and is synchronously connected to the rotating side plate 1.

[0104] A turntable drive mechanism 403 is mounted on the fixed upright plate 401, and the drive end of the turntable drive mechanism 403 is connected to the rotating ring 402. The rotating ring 402 drives the rotating side plate 1 to flip up and down relative to the fixed upright plate 401.

[0105] Optionally, the turntable drive mechanism 403 and the rotating ring 402 can be driven by gears, chains, or belts, etc., and this embodiment does not limit this.

[0106] Furthermore, a wire passage hole 4021 is provided at the center of the rotating ring 402. For example, the air pipe and wire of the auxiliary clamping device 5 can extend outward through the wire passage hole 4021 to prevent tangling or knotting during the flipping process.

[0107] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A top-locking online flipping device for fixing a small workpiece into a workpiece groove (100a) on the bottom surface of a large workpiece (100), characterized in that, include: Rotating side plate (1); The conveying device (2) is mounted on the rotating side plate (1) and includes a conveyor belt (201) and a support boss (202) located below the conveyor belt (201). Main clamping device (3), which is installed on the rotating side plate (1) and is used to press down the large workpiece (100) located on the conveyor belt (201) in conjunction with the support boss (202). The flipping drive assembly (4) is connected to the rotating side plate (1) and is used to drive the conveying device (2) and the main pressing device (3) to flip up and down through the rotating side plate (1) so that the workpiece groove (100a) is set facing upward. A secondary clamping device (5) is installed on the rotating side plate (1) and located on the side of the support boss (202) away from the main clamping device (3), for clamping the small workpiece located in the workpiece groove (100a) into the workpiece groove (100a).

2. The online flipping device for top locking according to claim 1, characterized in that, The conveyor belt (201) includes an upper belt section (2011) and a lower belt section (2012) located below the upper belt section (2011) and moving in the opposite direction to the upper belt section (2011). The support boss (202) is located below the upper band segment (2011) and above the lower band segment (2012).

3. The online flipping device for top locking according to claim 2, characterized in that, The main clamping device (3) includes: The main lifting plate (301) is located above the upper belt section (2011) and is slidably disposed with respect to the rotating side plate (1); wherein the main lifting plate (301) is provided with bolt through holes (3012) for assembly bolts to pass through. The main pressure plate direct drive mechanism (302) is installed on the rotating side plate (1), and the drive end of the main pressure plate direct drive mechanism (302) is connected to the main lifting pressure plate (301) to drive the main lifting pressure plate (301) to move up and down.

4. The online flipping device for top locking according to claim 3, characterized in that, The end of the main lifting plate (301) is provided with an extension (3013) extending to the outside of the rotating side plate (1), and the outside of the rotating side plate (1) and the extension (3013) are slidably connected by a slider guide rail assembly (9).

5. The online flipping device for top locking according to claim 2, characterized in that, The auxiliary clamping device (5) includes: A secondary lifting pressure plate (501) is located below the large workpiece (100); A vertical direct drive mechanism (502) for the auxiliary pressure plate, wherein the drive end of the vertical direct drive mechanism (502) for the auxiliary lifting pressure plate (501) is connected to the auxiliary lifting pressure plate (501) to drive the auxiliary lifting pressure plate (501) to move up and down; A horizontal direct drive mechanism (503) for the auxiliary pressure plate is installed on the rotating side plate (1), and the driving end of the horizontal direct drive mechanism (503) for the auxiliary pressure plate is connected to the vertical direct drive mechanism (502) for the auxiliary lifting pressure plate (501) to reciprocate horizontally.

6. The online flipping device for top locking according to claim 1, characterized in that, Also includes: The first photoelectric sensor (6) and the second photoelectric sensor (7) are both connected to the flip drive assembly (4) and are located on both sides of the rotation axis of the rotating side plate (1). A light-blocking plate (8) is fixed to the end of the rotating side plate (1); When the top surface of the main pressing device (3) is facing upward, the light blocking plate (8) is located within the sensing area of ​​the first photoelectric sensor (6); When the main pressing device (3) rotates with the rotating side plate (1) to the point where the bottom surface faces upward, the light blocking plate (8) rotates with the rotating side plate (1) into the sensing area of ​​the second photoelectric sensor (7).

7. The online flipping device for top locking according to claim 3, characterized in that, The bottom of the main lifting plate (301) is provided with a positioning pin (3011) for inserting into the positioning hole of the large workpiece (100).

8. The online flipping device for top locking according to claim 1, characterized in that, The flip drive component (4) includes: A fixed upright plate (401) is located on the outside of the rotating side plate (1); Rotating ring (402), the rotating ring (402) is rotatably installed on the inner side of the fixed upright plate (401) and is synchronously connected to the rotating side plate (1); A turntable drive mechanism (403) is installed on the fixed plate (401), and the drive end of the turntable drive mechanism (403) is connected to the rotating ring (402) for transmission. The rotating side plate (1) is driven to flip up and down relative to the fixed plate (401) through the rotating ring (402).

9. The online flipping device for top locking according to claim 8, characterized in that, The rotating ring (402) has a wire hole (4021) at its center.

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