A-shaped frame positioning mechanism

Abstract

The invention provides an A-shaped frame positioning mechanism, and relates to the technical field of glass manufacturing. The A-shaped frame positioning mechanism comprises a working table, the projection of the working table in the horizontal direction is of a polygonal structure, and the working table is provided with a plurality of edge parts and is used for placing a glass plate; each edge part is at least correspondingly provided with one positioning device, and the multiple positioning devices clamp the workbench; the positioning device comprises a driving piece and a movable assembly, the driving piece is connected with the movable assembly, and the movable assembly abuts against the corresponding edge part; the driving piece drives the movable assembly to move in the direction close to or away from the edge, so that the movable assembly pushes the workbench to move in the direction close to the corresponding edge.

Description

Technical Field

[0001] This application relates to the field of glass processing technology, and in particular to an A-frame positioning mechanism. Background Technology

[0002] In the production process of LCD glass, A-frames are required in the loading and packaging areas. Precise positioning of the A-frames is necessary to ensure the accurate placement of the glass substrate and the precise positioning of the robot.

[0003] In the existing technology, the positioning mechanism of the A-frame mainly consists of cylinder positioning devices on both sides and the rear end, as well as a stop block at the front end, resulting in poor positioning accuracy.

[0004] Therefore, how to provide an A-frame positioning mechanism that can improve positioning accuracy is an urgent problem to be solved. Summary of the Invention

[0005] One of the technical problems this application aims to solve is: how to improve the positioning accuracy of A-frames.

[0006] To address the aforementioned technical problems, embodiments of this application provide an A-frame positioning mechanism, comprising:

[0007] A workbench, the projection of which in the horizontal direction is a polygonal structure, the workbench having multiple sides, the workbench being used to place a glass plate;

[0008] Multiple positioning devices are provided, with at least one positioning device corresponding to each of the edges, and the multiple positioning devices clamp the worktable;

[0009] The positioning device includes a driving component and a movable component, the driving component being connected to the movable component, and the movable component abutting against the corresponding edge.

[0010] The drive unit drives the movable component to move in a direction closer to or away from the edge, so that the movable component pushes the worktable to move in a direction closer to the corresponding edge.

[0011] In some embodiments, the polygonal structure projected by the workbench in the horizontal direction is a symmetrical structure, with multiple sides arranged symmetrically in pairs, and two positioning devices corresponding to two opposite sides arranged symmetrically.

[0012] In some embodiments, the projection of the worktable in the horizontal direction is rectangular, and the worktable includes a first side, a second side, a third side, and a fourth side that are connected end to end;

[0013] The first side is provided with a first positioning device, the second side is provided with a second positioning device, the third side is provided with a third positioning device, and the fourth side is provided with a fourth positioning device.

[0014] When the first positioning device pushes the first side along the first direction, the third positioning device moves synchronously with the third side along the second direction opposite to the first direction, and the worktable moves along the first direction under the clamping of the second positioning device and the fourth positioning device;

[0015] When the second positioning device pushes the second side along a third direction, the fourth positioning device moves synchronously with the fourth side along a fourth direction opposite to the third direction, and the worktable moves in a third direction under the clamping of the first positioning device and the third positioning device.

[0016] In some embodiments, the active component includes:

[0017] A pusher, connected to the drive member, to move under the drive of the drive member;

[0018] A baffle is connected to the pusher and is located near the corresponding edge. The baffle pushes the edge to move under the action of the pusher.

[0019] In some embodiments, the pusher is a lead screw that extends in a direction perpendicular to the length direction of the corresponding side portion. The lead screw is connected to the drive member to rotate under the drive of the drive member. The baffle is rotatably connected to the lead screw along the length direction of the lead screw. The thickness of the baffle in the length direction of the lead screw is at least greater than the length of the lead screw. The baffle is disposed close to the corresponding side portion to push the worktable to move.

[0020] In some embodiments, the pusher is a telescopic cylinder, the first end of which is connected to the drive member, and the second end has a telescopic rod. The telescopic rod extends and retracts along the edge away from the corresponding side under the drive of the drive member. The first side of the baffle is connected to the telescopic rod, and the second side of the baffle is disposed near the corresponding edge.

[0021] In some embodiments, the surface of the baffle facing the edge is arranged parallel to the edge.

[0022] In some embodiments, the active component further includes:

[0023] Multiple positioning wheels are provided, each of which is connected to the surface of the baffle facing the edge. Each of the multiple positioning wheels is a rotating wheel and abuts against the corresponding edge.

[0024] In some embodiments, the active component further includes:

[0025] A buffer layer is disposed on the surface of the baffle facing the corresponding edge.

[0026] In some embodiments, it also includes:

[0027] Multiple floating cylinders are connected below the worktable to drive the worktable to move.

[0028] The A-frame positioning mechanism provided in this application, through the above technical solution, includes a worktable and multiple positioning devices. The worktable has multiple edges around its circumference, which together form the worktable. Each edge is correspondingly provided with a positioning device. The multiple positioning devices can clamp the central worktable, thus securing it tightly. Each positioning device can drive the corresponding edge to move. While one positioning device is moving its corresponding edge, the other positioning devices can clamp the worktable, ensuring it remains clamped during movement. This allows for more precise adjustment of the worktable's position, improving positioning accuracy. Furthermore, after the worktable's position is adjusted once using the positioning devices, if the position does not conform to the preset position, it can be readjusted using the multiple positioning devices, further preventing quality issues caused by different glass plate loading conditions. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of an A-frame positioning mechanism disclosed in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. A-frame positioning mechanism; 11. Worktable; 111. Side; 1111. First side; 1112. Second side; 1113. Third side; 1114. Fourth side; 12. Positioning device; 121. Driving component; 122. Movable component; 1221. Pushing component; 1222. Baffle; 1223. Positioning wheel; 123. First positioning device; 124. Second positioning device; 125. Third positioning device; 126. Fourth positioning device; 13. Floating cylinder. Detailed Implementation

[0033] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0034] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0035] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0037] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0038] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0040] Currently, A-frames are frequently used in glass processing to facilitate glass transfer. Since glass comes in various sizes, the position of the A-frame needs to be adjusted and positioned according to the glass dimensions before transferring the glass substrate. The A-frame positioning mechanism provided in this application uses positioning devices on multiple edges of the worktable. These devices clamp the worktable, and their positions can be adjusted in multiple directions. This makes adjusting the worktable convenient and more accurate. Furthermore, if the initial adjustment of the A-frame does not reach the preset position, the multiple positioning devices can be used to readjust the A-frame until it reaches the desired position.

[0041] like Figure 1 As shown, the A-frame positioning mechanism 1 provided in this application includes:

[0042] The worktable 11 has a polygonal structure in its horizontal projection and has multiple sides 111. The worktable 11 is used to place glass plates.

[0043] Multiple positioning devices 12 are provided, with at least one positioning device 12 corresponding to each edge 111, and the multiple positioning devices 12 clamp the worktable 11;

[0044] The positioning device 12 includes a driving member 121 and a movable component 122. The driving member 121 is connected to the movable component 122, and the movable component 122 abuts against the corresponding edge 111.

[0045] The drive component 121 drives the movable component 122 to move in a direction close to or away from the edge 111, so that the movable component 122 pushes the worktable 11 to move in a direction close to the corresponding edge 111.

[0046] In this embodiment, the worktable 11 is a structure for placing glass plates. It can be a plate-shaped structure or a groove-shaped receiving space for accommodating glass plates. Below the worktable 11 is a driving device that can move the worktable 11, thereby moving the glass plate placed on the worktable 11 to a position for processing the glass plate.

[0047] In this embodiment, the horizontal projection of the worktable 11 is a polygon, and each side 111 is correspondingly provided with a positioning device 12. The multiple positioning devices 12 corresponding to the multiple sides 111 clamp the worktable 11, thus securing it and preventing insecure positioning. Furthermore, when one positioning device 12 moves the worktable 11, the other positioning devices 12 can either move synchronously or remain stationary, ensuring they still clamp the worktable 11, thereby improving the positioning accuracy of the worktable 11. If, after the initial adjustment, the position of the worktable 11 is not properly adjusted or exceeds the preset position, it can be readjusted and repositioned using the corresponding positioning device 12 to meet the requirements. The preset position is the position where the worktable 11 needs to be during the production process.

[0048] In this embodiment, multiple positioning devices 12 can be used to adjust and position the worktable 11 in multiple directions to position the worktable 11 to a preset position, and also facilitate readjustment of the worktable 11 after one adjustment. For example, initially, the positioning device 12 located in the first direction of the worktable 11 pushes the worktable 11 in a second direction opposite to the first direction. If the worktable 11 does not reach the preset position, the positioning device 12 located in the first direction of the worktable 11 needs to push the worktable 11 again in the second direction so that the worktable 11 reaches the preset position; if the position of the worktable 11 exceeds the preset position, the positioning device 12 located in the second direction of the worktable 11 needs to push the worktable 11 back to the first direction so that the worktable 11 reaches the preset position.

[0049] In this embodiment, the driving component 121 can be a servo motor. The multiple servo motors of the multiple positioning devices 12 are all connected to the controller or to the host computer, so that the multiple servo motors can be controlled by the controller or the host computer to control the servo motors to turn on or off. After the servo motor is turned on, it can drive the corresponding moving component 122 to move, thereby accurately controlling the moving component 122 to drive the worktable 11 to travel a certain distance, so as to accurately adjust and position the worktable 11.

[0050] In this embodiment, the moving component 122 moves in a direction perpendicular to the corresponding edge 111, so that the moving component 122 can push the worktable 11 away from the edge 111 in a direction perpendicular to the edge 111, so as to adjust and position the worktable 11.

[0051] This application provides an A-frame positioning mechanism 1, including a worktable 11 and multiple positioning devices 12. The worktable 11 has multiple edges 111 around its circumference, which enclose the worktable 11. Each edge 111 is correspondingly provided with a positioning device 12. The multiple positioning devices 12 can clamp the central worktable 11, thereby clamping the worktable 11. Each positioning device 12 can drive the corresponding edge 111 to move. While one positioning device 12 is moving its corresponding edge 111, the other positioning devices 12 can clamp the worktable 11, ensuring that the worktable 11 remains clamped during movement. This allows for more precise adjustment of the worktable 11's position, improving positioning accuracy. Furthermore, after the position of the worktable 11 is adjusted once by the positioning devices 12, if the position does not conform to the preset position, it can be readjusted by the multiple positioning devices 12, further avoiding quality problems caused by different glass plate loading conditions.

[0052] In this embodiment, the polygonal structure projected by the workbench 11 in the horizontal direction is a symmetrical structure, with multiple sides 111 arranged symmetrically in pairs, and two positioning devices 12 corresponding to two opposite sides 111 arranged symmetrically.

[0053] In this embodiment, each side 111 of the worktable 11 is provided with a corresponding positioning device 12. Multiple positioning devices 12 clamp the worktable 11, and the polygonal structure projected by the worktable 11 in the horizontal direction is symmetrical, resulting in better clamping effect. Furthermore, if the worktable 11 moves excessively in one direction, the positioning device 12 on the opposite side 111 can cause the worktable 11 to move back, thereby improving positioning accuracy. The two positioning devices 12 on the opposite sides 111 are also symmetrically arranged, so the pushing or driving effect of the two positioning devices 12 on the corresponding sides 111 is the same, further improving the adjustment accuracy of the worktable 11.

[0054] In this embodiment of the application, the projection of the workbench 11 in the horizontal direction is rectangular, and the workbench 11 includes a first side 1111, a second side 1112, a third side 1113 and a fourth side 1114 connected end to end.

[0055] The first side 1111 is provided with a first positioning device 123, the second side 1112 is provided with a second positioning device 124, the third side 1113 is provided with a third positioning device 125, and the fourth side 1114 is provided with a fourth positioning device 126.

[0056] When the first positioning device 123 pushes the first side portion 1111 along the first direction, the third positioning device 125 moves synchronously with the third side portion 1113 along the second direction opposite to the first direction, and the worktable 11 moves along the first direction under the clamping of the second positioning device 124 and the fourth positioning device 126.

[0057] When the second positioning device 124 pushes the second side 1112 along a third direction, the fourth positioning device 126 moves synchronously with the fourth side 1114 along a fourth direction opposite to the third direction, and the worktable 11 moves in a third direction under the clamping of the first positioning device 123 and the third positioning device 125.

[0058] In this embodiment, the projection of the workbench 11 in the horizontal direction is a polygonal structure, which can be a rectangle or other polygons, such as hexagons or octagons.

[0059] In this embodiment, the polygonal structure of the workbench 11 projected in the horizontal direction has an even number of sides 111.

[0060] In one embodiment of this application, when adjusting and positioning the worktable 11, the adjustment value can be input into the controller to control the corresponding drive unit 121 to open or close. The controller can first control the first positioning device 123 or the second positioning device 124 to push the first edge 1111 along the first or second direction, so that the worktable 11 moves in the first or second direction. Correspondingly, the third positioning device 125 or the first positioning device 123 moves synchronously with the worktable 11 along the second or first direction, so that the third positioning device 125 or the first positioning device 123 will not interfere with the worktable 11 during its movement. Moreover, the movement of the worktable 11 is also carried out under the clamping of the stationary second positioning device 124 and the fourth clamping device, thereby preventing the worktable 11 from shifting in the third or fourth direction, thus completing the adjustment and positioning of the worktable 11 in the first and second directions and improving the positioning accuracy. Then, the controller controls the second positioning device 124 or the fourth positioning device 126 to push the worktable 11 along the third or fourth direction, so that the worktable 11 moves in the third or fourth direction. Correspondingly, the fourth positioning device 126 or the second positioning device 124 moves synchronously with the worktable 11 along the fourth or third direction, so that the fourth positioning device 126 or the second positioning device 124 will not interfere with the worktable 11 during its movement. Moreover, the movement of the worktable 11 is carried out under the clamping of the stationary first positioning device 123 and the second clamping device, avoiding the worktable 11 from shifting in the first or second direction, thereby completing the adjustment and positioning of the worktable 11 in the third and fourth directions, thus making the positioning more accurate. If the glass plate on the worktable 11 is found to be skewed during measurement or production, the offset value can be input into the controller. The controller controls the servo motor to drive the corresponding two positioning devices 12 to move the worktable 11, and the worktable 11 completes the position adjustment along the two stationary positioning devices 12.

[0061] In this embodiment, the second direction is opposite to the first direction, the first direction is perpendicular to both the third and fourth directions, and the third direction is opposite to the fourth direction.

[0062] In this embodiment of the application, the active component 122 includes:

[0063] A pusher 1221 is connected to the drive 121 to move under the drive of the drive 121;

[0064] A baffle 1222 is connected to the pusher 1221. The baffle 1222 is close to the corresponding edge 111. Under the action of the pusher 1221, the baffle 1222 pushes the edge 111 to move.

[0065] In this embodiment, the controller is connected to the drive component 121, the drive component 121 is connected to the push component 1221, and the push component 1221 is connected to the baffle 1222. The baffle 1222 is located near the edge 111. The controller controls the opening and closing of the drive component 121. When the drive component 121 is opened, it controls the push component 1221 to move. Since the baffle 1222 is connected to the push component 1221, the movement of the push component 1221 can drive the baffle 1222 to move. The baffle 1222 is located near the edge 111, so when the baffle 1222 moves, it can drive the edge 111 to move, thereby realizing the movement of the worktable 11.

[0066] In this embodiment, the pusher 1221 is a lead screw, which extends in a direction perpendicular to the length direction of the corresponding edge 111. The lead screw is connected to the drive member 121 to rotate under the drive of the drive member 121. The baffle 1222 is rotatably connected to the lead screw along the length direction of the lead screw. The thickness of the baffle 1222 in the length direction of the lead screw is at least greater than the length of the lead screw. The baffle 1222 is disposed close to the corresponding edge 111 to push the worktable 11 to move.

[0067] In this embodiment, the thickness of the baffle 1222 in the length direction of the lead screw is at least greater than the length of the lead screw, that is, the thickness of the baffle 1222 in the length direction of the lead screw is the same as the length of the lead screw, or the thickness of the baffle 1222 in the length direction of the lead screw is greater than the length of the lead screw.

[0068] In this embodiment, the movable component 122 includes a lead screw and a baffle 1222. The lead screw is connected to a drive member 121, which is connected to a controller. Under the control of the controller, the drive member 121 can drive the lead screw to rotate. The lead screw extends in a direction perpendicular to the corresponding edge 111. The baffle 1222 is rotatably connected to the lead screw, so that the baffle 1222 can be rotatably connected to the lead screw along the length of the lead screw. The baffle 1222 is also located close to the edge 111, so that when the baffle 1222 rotates on the lead screw in a direction close to the edge 111, it can push the edge 111 to move, thereby causing the worktable 11 to move. Furthermore, the thickness of the baffle 1222 along the length of the lead screw is at least greater than the length of the lead screw. Therefore, when the baffle 1222 rotates along the length of the lead screw, the lead screw will not protrude from the baffle 1222 toward the side 111. Thus, during the pushing process of the baffle 1222 toward the side 111, the side 111 will not come into contact with the lead screw, thus avoiding damage to the side 111 caused by the lead screw.

[0069] In this embodiment, the pusher 1221 is a telescopic cylinder. The first end of the telescopic cylinder is connected to the drive member 121, and the second end has a telescopic rod. The telescopic rod extends and retracts along the corresponding side 111 under the drive of the drive member 121. The first side of the baffle 1222 is connected to the second end of the telescopic rod, and the second side of the baffle 1222 is disposed close to the corresponding side 111.

[0070] In this embodiment, the movable component 122 includes a telescopic cylinder and a baffle 1222. One end of the telescopic cylinder is connected to a drive member 121, which is connected to a controller. Under the control of the controller, the drive member 121 can drive the telescopic cylinder to extend or retract. The telescopic rod of the telescopic cylinder is connected to the baffle 1222. When the telescopic rod extends, it can push the baffle 1222 towards the side 111, thereby causing the worktable 11 to move. When the worktable 11 moves towards the baffle 1222, the telescopic rod retracts, so that the baffle 1222 does not interfere with the movement of the worktable 11.

[0071] In this embodiment of the application, the surface of the baffle 1222 facing the edge 111 is arranged parallel to the edge 111.

[0072] In this embodiment, the baffle 1222 is a quadrangular prism structure. The surface of the baffle 1222 facing the edge 111 is a plane and parallel to the edge 111, thereby facilitating the movement of the edge 111.

[0073] In this embodiment of the application, the active component 122 further includes:

[0074] Multiple positioning wheels 1223 are provided, each of which is connected to the surface of the baffle 1222 facing the edge 111. Each of the multiple positioning wheels 1223 is a rotating wheel, and each of the multiple positioning wheels 1223 abuts against the corresponding edge 111.

[0075] In this embodiment, there can be two or three positioning wheels 1223. All positioning wheels 1223 are disposed on the surface of the baffle 1222 near the edge 111, and are spaced apart along the length direction parallel to the edge 111. When there are two positioning wheels 1223, they can be disposed at opposite ends of the baffle 1222 along its length. The positioning wheels 1223 can rotate 360°, and their arrangement reduces friction between the moving component 122 and the edge 111.

[0076] In this embodiment, when the positioning device 12 corresponding to one side 111 of the workbench 11 pushes the workbench 11 to move, the positioning device 12 corresponding to the adjacent side 111 will slide relative to the corresponding side 111. The setting of the positioning wheel 1223 can reduce the friction between the positioning device 12 and the side 111, avoid damage to the positioning device 12 and the side 111 of the workbench 11, and extend the service life.

[0077] In this embodiment of the application, the active component 122 further includes:

[0078] A buffer layer is disposed on the surface of the baffle 1222 facing the corresponding edge 111.

[0079] In this embodiment, the buffer layer can be a structure made of rubber, a structure made of knitted material, or a structure made of other materials, as long as it meets the production and processing requirements and can achieve buffering and protection.

[0080] In this embodiment, the buffer layer can be disposed on the surface of the baffle 1222 facing the edge 111, or it can be sleeved on the outside of the baffle 1222 to prevent the baffle 1222 from making hard contact with the edge 111, which would cause a shortening of the component lifespan. This provides protection for the baffle 1222 and thus improves the lifespan of the baffle 1222.

[0081] In this embodiment of the application, it also includes:

[0082] Multiple floating cylinders 13 are connected below the worktable 11 to drive the worktable 11 to move.

[0083] In this embodiment, the multiple floating cylinders 13 are controlled by a controller, which controls the floating cylinders 13 to drive the worktable 11 to move freely in any direction in the horizontal direction.

[0084] In this embodiment, multiple floating cylinders 13 can be provided below the worktable 11. Each floating cylinder 13 has a bladder, and the worktable 11 can move freely in the horizontal direction along with the bladders of the multiple floating cylinders 13. Thus, after the glass plate is loaded onto the worktable 11, the worktable 11 drives the glass plate to move.

[0085] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0086] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. An A-frame positioning mechanism, characterized in that, include: A workbench (11) has a polygonal structure in the horizontal direction and has multiple sides (111). The workbench (11) is used to place glass plates. Multiple positioning devices (12) are provided, with at least one positioning device (12) corresponding to each edge (111), and the multiple positioning devices (12) clamp the worktable (11); The positioning device (12) includes a driving member (121) and a movable component (122), the driving member (121) being connected to the movable component (122), and the movable component (122) abutting against the corresponding edge (111); The drive member (121) drives the movable component (122) to move in a direction closer to or away from the edge (111), so that the movable component (122) pushes the worktable (11) to move in a direction closer to the corresponding edge (111).

2. The A-frame positioning mechanism according to claim 1, characterized in that, The polygonal structure projected by the workbench (11) in the horizontal direction is a symmetrical structure. The multiple sides (111) are arranged symmetrically in pairs, and the two positioning devices (12) corresponding to the two opposite sides (111) are arranged symmetrically.

3. The A-frame positioning mechanism according to claim 1, characterized in that, The workbench (11) is projected into a rectangle in the horizontal direction. The workbench (11) includes a first side (1111), a second side (1112), a third side (1113), and a fourth side (1114) connected end to end. The first side (1111) is provided with a first positioning device (123), the second side (1112) is provided with a second positioning device (124), the third side (1113) is provided with a third positioning device (125), and the fourth side (1114) is provided with a fourth positioning device (126). When the first positioning device (123) pushes the first side (1111) along the first direction, the third positioning device (125) moves synchronously with the third side (1113) along the second direction opposite to the first direction, and the worktable (11) moves along the first direction under the clamping of the second positioning device (124) and the fourth positioning device (126). When the second positioning device (124) pushes the second side (1112) along the third direction, the fourth positioning device (126) moves synchronously with the fourth side (1114) along the fourth direction opposite to the third direction, and the worktable (11) moves in the third direction under the clamping of the first positioning device (123) and the third positioning device (125).

4. The A-frame positioning mechanism according to claim 1, characterized in that, The active component (122) includes: A pusher (1221) is connected to the drive (121) to move under the drive (121); A baffle (1222) is connected to the pusher (1221). The baffle (1222) is close to the corresponding edge (111). The baffle (1222) pushes the edge (111) to move under the action of the pusher (1221).

5. The A-frame positioning mechanism according to claim 4, characterized in that, The pusher (1221) is a lead screw, which extends in a direction perpendicular to the length direction of the corresponding side (111). The lead screw is connected to the drive member (121) to rotate under the drive of the drive member (121). The baffle (1222) is rotatably connected to the lead screw along the length direction of the lead screw. The thickness of the baffle (1222) in the length direction of the lead screw is at least greater than the length of the lead screw. The baffle (1222) is located close to the corresponding side (111) to push the worktable (11) to move.

6. The A-frame positioning mechanism according to claim 4, characterized in that, The pusher (1221) is a telescopic cylinder. The first end of the telescopic cylinder is connected to the drive member (121), and the second end has a telescopic rod. The telescopic rod extends and retracts along the corresponding side (111) under the drive of the drive member (121). The first side of the baffle (1222) is connected to the telescopic rod, and the second side of the baffle (1222) is set close to the corresponding side (111).

7. The A-frame positioning mechanism according to claim 4, characterized in that, The surface of the baffle (1222) facing the edge (111) is arranged parallel to the edge (111).

8. The A-frame positioning mechanism according to claim 4, characterized in that, The active component (122) also includes: Multiple positioning wheels (1223) are provided, each of which is connected to the surface of the baffle (1222) facing the edge (111). Each of the multiple positioning wheels (1223) is a rotating wheel, and each of the multiple positioning wheels (1223) abuts against the corresponding edge (111).

9. The A-frame positioning mechanism according to claim 4, characterized in that, The active component (122) also includes: A buffer layer is disposed on the surface of the baffle (1222) facing the corresponding edge (111).

10. The A-frame positioning mechanism according to claim 1, characterized in that, Also includes: Multiple floating cylinders (13) are connected below the worktable (11) to drive the worktable (11) to move.

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