Positioning and overturning structure for battery tray processing

Abstract

The present application relates to the technical field of conveying and overturning, in particular to a positioning and overturning structure for battery tray processing, comprising a moving seat, an overturning frame, a reference pile and a positioning mechanism. In the present application, all the adhering plates are tightly attached to the clamping tray by means of the self-gravity of the tray, and the tray is locked and clamped in the circumferential and vertical directions by the locking lower pressing block, thus completing the tray tooling and making the reference of the tray coincide with the reference of the fixing frame. In subsequent different processing operations, the above-mentioned reference coincides with the reference of the overturning frame through the clamping cooperation between the reference pile and the fixing frame in the corresponding operation process, so that the tray tooling does not need to be repositioned before multiple operation processes are carried out, the positioning error caused by repeated tooling is reduced, the tooling operation efficiency is improved, the downtime waiting time is reduced, and the overall operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of conveying and flipping technology, specifically to a positioning and flipping structure for battery tray processing. Background Technology

[0002] Battery trays are key structural components in the chassis system of new energy vehicles, used to support, fix and protect battery components. They require multiple processing steps such as welding, riveting, milling, stamping, cutting and gluing. Therefore, in the current assembly line processing of battery trays, multiple workstations are usually set up for different processes. The battery tray is moved to the set workstation for positioning, and then flipped at a set angle to perform the corresponding processing steps.

[0003] Among them, Chinese invention patent with announcement number CN107931023A discloses a battery tray adhesive fixing fixture with flipping function. The battery tray adhesive fixing fixture includes a base frame and a battery tray fixing structure fixed on the base frame for fixing and limiting the battery tray. The battery tray is positioned in the longitudinal, lateral and vertical directions by the first limiting structure and the second limiting structure in the battery tray fixing structure.

[0004] Chinese invention patent CN116275464B discloses a tooling for friction stir welding of battery trays, including a first-process tooling, a second-process tooling, and a third-process tooling. It can quickly position and fix the bottom plate, end cap, and side plate in each process, with good fixing effect. Only manual loading and unloading are required. The fixing and positioning components are pneumatically controlled, which effectively improves production efficiency.

[0005] The two published patents mentioned above each propose a method for tooling positioning of battery trays. However, they only address tooling positioning at their respective workstations. Since different work processes need to be performed at different workstations during battery tray processing, the trays need to be repositioned multiple times when the robotic arm picks up and puts them in, which leads to increased repositioning errors. At the same time, more time is needed to repeatedly check the processing benchmarks of the trays, resulting in low overall efficiency. Summary of the Invention

[0006] Therefore, it is necessary to provide a positioning and flipping structure for battery tray processing, which aims to solve the problems of the prior art.

[0007] This application provides a positioning and flipping structure for battery tray processing, which is used in conjunction with a robot arm. It includes: a movable base, a flipping frame rotatably mounted above the movable base, and two reference stakes that are distributed left and right and have vertical axes fixedly mounted on the flipping frame.

[0008] A positioning mechanism is provided on the two reference piles. The positioning mechanism includes a fixed frame sleeved on the two reference piles. A sliding frame is slidably provided on both the front and rear end faces of the fixed frame. Adhesive plates are provided on both the left and right sides of the fixed frame and on the sliding frame.

[0009] The front and rear bonding plates are provided with pressing blocks for pressing down the tray, and a reference block is fixedly provided on the right end face of the left bonding plate.

[0010] When the bonding plate is tightly attached to the tray, the tray is in contact with the upper surface of the reference pile.

[0011] Each of the bonding plates is equipped with a drive assembly on its end face facing the reference pile. The drive assembly is pressed by the weight of the tray, so that the bonding plate is tightly attached to the tray. All the bonding plates together clamp the tray, and the reference pile supports the tray.

[0012] The reference pile is equipped with a locking component for locking the fixing frame to it.

[0013] The pallet's own weight is used to make the bonding plate adhere tightly to and clamp the pallet, and the pallet is locked and clamped in the circumferential and vertical directions by locking the lower pressure block. The pallet and the fixing frame are supported by the reference pile, and the reference pile is used to unify the reference between the fixing frame, the pallet and the flipping frame.

[0014] According to an advantageous embodiment, after the bonding plate on the left side is closely attached to the tray, the reference block is vertically oriented, and a reference hole is opened on the reference block. The reference hole on the reference block is used as the processing reference for the tray in the corresponding processing steps.

[0015] According to an advantageous embodiment, the upper end face of the fixing frame is provided with guide grooves corresponding to the reference piles, and the reference of the fixing frame and the reference of the flipping frame are unified by the reference piles passing through the corresponding guide grooves.

[0016] The reference pile consists of a large-diameter section and a small-diameter section from bottom to top, and the diameter of the guide groove is the same as the diameter of the small-diameter section of the reference pile.

[0017] According to an advantageous embodiment, the locking assembly includes a receiving groove, which is provided through the reference pile from left to right. Two symmetrical locking plates are rotatably arranged in the receiving groove, and a driving plate located above the locking plates is slidably arranged in the receiving groove. The left and right sides of the driving plate are hinged to the locking plates by hinge strips.

[0018] According to an advantageous embodiment, a sliding block is slidably provided on the right side of the fixed frame and the upper end face of the sliding frame along the corresponding length direction, and a U-shaped frame is fixedly provided on the sliding block and the upper left end face of the fixed frame, and the bonding plate is rotatably mounted on the U-shaped frame.

[0019] The drive assembly includes an inclined sleeve, on which the end face of the bonding plate facing the reference pile is fixedly provided with the inclined sleeve. An insertion frame is inserted and installed on the inclined sleeve, and the insertion frame is fixed to the inclined sleeve by a pin. A contact roller is rotatably provided at the upper end of the insertion frame.

[0020] According to an advantageous embodiment, an L-shaped support frame is fixedly provided on the end face of the bonding plate away from the reference pile, and the bonding plate is inclined towards the side closer to the reference pile when it contacts the support frame.

[0021] According to an advantageous embodiment, the lower pressure block is slidably disposed on the end face of the left and right side bonding plates facing the reference pile. Both left and right side bonding plates are rotatably provided with threaded rods with vertical axes. The threaded rods are threaded through the corresponding lower pressure blocks, and a connecting piece is fixedly disposed on the upper end face of the threaded rods.

[0022] According to an advantageous embodiment, the right side of the fixed frame and the sliding frame are provided with a plurality of mounting slots distributed along their respective length directions, and the sliding block is provided with a mating slot. The mating slot and the corresponding mounting slot are provided with locking bolts.

[0023] According to an advantageous embodiment, the lower end face of the sliding frame is rotatably provided with a support roller whose axis extends from front to back, and the distance between the lower side of the support roller and the sliding frame is the same as the height of the large diameter section of the reference pile.

[0024] In summary, the present invention has the following beneficial effects: The present invention utilizes the pallet's own weight to ensure all bonding plates tightly adhere to and clamp the pallet. The locking pressure block forms a circumferential and vertical locking clamp on the pallet, thus completing the pallet tooling and ensuring the pallet's reference point coincides with the reference point of the fixed frame. In subsequent processing steps, the interlocking between the reference stake and the corresponding fixed frame ensures the reference point coincides with the reference point of the flipping frame. Therefore, before multiple processing steps, there is no need to re-tool and position the pallet (only the reference stake and corresponding fixed frame need to be aligned), reducing positioning errors caused by repeated tooling, improving tooling efficiency, reducing downtime, and increasing overall operational efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 A three-dimensional structural schematic diagram of a positioning and flipping structure for battery tray processing provided according to an embodiment of the present invention is shown.

[0027] Figure 2 A partial three-dimensional structural schematic diagram of a positioning and flipping structure for battery tray processing provided according to an embodiment of the present invention is shown.

[0028] Figure 3 A front view schematic diagram of a positioning and flipping structure for processing a battery tray according to an embodiment of the present invention is shown.

[0029] Figure 4 A three-dimensional structural diagram of the relationship between the tilting frame and the positioning pile provided according to an embodiment of the present invention is shown.

[0030] Figure 5 A partial cross-sectional perspective view of the three-dimensional structure between the fixing frame, positioning stake and bonding plate provided according to an embodiment of the present invention is shown.

[0031] Figure 6 The present invention provides an embodiment of the invention. Figure 5 Enlarged view of point A in the middle.

[0032] Figure 7 A three-dimensional structural diagram of the fixed frame, sliding frame and positioning plate provided according to an embodiment of the present invention is shown.

[0033] Figure 8 The present invention provides an embodiment of the invention. Figure 7 Enlarged view of point B in the middle.

[0034] Figure 9 A front view of the left-side bonding plate not being vertically bonded according to an embodiment of the present invention is shown.

[0035] Figure 10 A front view of the left-side bonding plate in a vertically bonded state, according to an embodiment of the present invention, is shown.

[0036] The above-mentioned figures include the following reference numerals: 1. Movable seat; 2. Tilting frame; 3. Reference pile; 30. Guide groove; 4. Positioning mechanism; 40. Fixed frame; 41. Sliding frame; 42. Adhesive plate; 420. Lower pressure block; 421. Reference block; 422. Reference hole; 43. Drive assembly; 430. Inclined sleeve; 431. Insertion frame; 432. Contact roller; 433. Support frame; 44. Locking assembly; 440. Receiving groove; 441. Locking plate; 442. Drive plate; 45. Sliding block; 450. U-shaped frame; 46. Threaded rod; 460. Connecting part; 47. Mounting groove; 471. Locking bolt; 48. Support roller. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] like Figure 1 and Figure 2 As shown, a positioning and flipping structure for battery tray processing, used in conjunction with a robotic arm, includes: a movable seat 1, a flipping frame 2 rotatably mounted on the movable seat 1, the flipping frame 2 being driven to rotate by an external motor (not shown in the figure), and two reference stakes 3 fixedly mounted on the flipping frame 2, which are distributed left and right and have vertical axes.

[0039] Positioning mechanisms 4 are provided on the two reference piles 3. The positioning mechanism 4 includes a fixed frame 40 sleeved on the two reference piles 3. Sliding frames 41 are slidably provided on both the front and rear end faces of the fixed frame 40. Adhesive plates 42 are provided on both the left and right sides of the fixed frame 40 and on the sliding frames 41.

[0040] like Figure 2 As shown, pressing blocks 420 for pressing down the tray are provided on the front and rear bonding plates 42, and a reference block 421 is fixedly provided on the right end face of the left bonding plate 42. When the bonding plate 42 is close to the tray, the tray is in contact with the upper end face of the reference pile 3.

[0041] like Figure 2 As shown, each of the end faces of the bonding plates 42 facing the reference pile 3 is provided with a driving component 43. The driving component 43 is pressed by the weight of the pallet, so that the bonding plates 42 are tightly attached to the pallet. All the bonding plates 42 together clamp the pallet and the reference pile 3 supports the pallet.

[0042] like Figure 2 As shown, the reference pile 3 is provided with a locking component 44 for locking the fixing frame 40 to it.

[0043] During operation, the robotic arm installs the fixed frame 40 and the sliding frame 41 onto the horizontally positioned flipping frame 2. At this time, the reference stake 3 penetrates the fixed frame 40, meaning that the reference of the fixed frame 40 is consistent with the reference of the flipping frame 2. Then, the robotic arm first places the pallet onto the fixed frame 40 from top to bottom. As the pallet gradually moves down, its own weight presses down on the drive component 43, eventually causing the bonding plate 42 to adhere tightly to the pallet. The robotic arm then presses down the pressing block 420 and locks the pallet, thus locking the fixed frame 40 and the pallet together. At this point, the reference of the pallet is consistent with the reference of the fixed frame 40, and the reference of the fixed frame 40 is indicated and determined by the reference block 421. Simultaneously, the locking component 44 locks the fixed frame 40. Thus, the reference of the flipping frame 2, the reference of the fixed frame 40, and the reference of the pallet are consistent, completing the pallet positioning process. Subsequently, the pallet's state is changed by flipping to perform setting operations.

[0044] When it is necessary to move the pallet to other workstations to set up work processes, the locking component 44 is unlocked and the robot arm removes the fixed frame 40 and the pallet. The pallet is then placed in other workstations with the fixed frame 40 as the reference. This allows the pallet reference to be quickly determined through the above operation method, and the reference block 421 is used as the processing reference for the pallet. This avoids the tedious steps of repositioning and improves positioning efficiency and processing efficiency.

[0045] like Figure 1 and Figure 2 As shown, after the bonding plate 42 on the left is tightly attached to the pallet, the reference block 421 is vertically oriented. The reference block 421 has a reference hole 422. The corresponding processing steps can use the reference hole 422 on the reference block 421 as the processing reference for the pallet to quickly connect, thereby improving positioning efficiency and processing efficiency.

[0046] like Figure 2 , Figure 4 and Figure 7 As shown, the upper end face of the fixing frame 40 is provided with guide grooves 30 that correspond one-to-one with the reference piles 3. The reference piles 3 pass through the corresponding guide grooves 30 to unify the reference of the fixing frame 40 and the reference of the flipping frame 2.

[0047] The reference pile 3 consists of a large-diameter section and a small-diameter section from bottom to top, and the diameter of the guide groove 30 is the same as the diameter of the small-diameter section of the reference pile 3.

[0048] like Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the locking assembly 44 includes a receiving groove 440. The receiving groove 440 is provided through the reference pile 3 from left to right. Two left-right symmetrical locking plates 441 are rotatably arranged in the receiving groove 440. A driving plate 442 located above the locking plates 441 is slidably arranged in the receiving groove 440. The left and right sides of the driving plate 442 are hinged to the locking plates 441 through hinge strips. The driving plate 442 is driven to move up and down by an external hydraulic cylinder (not shown in the figure).

[0049] During operation, as the robotic arm moves the fixed frame 40 onto the tilting frame 2, the installation of the fixed frame 40 is guided by the small-diameter section of the reference pile 3 passing through the corresponding guide groove 30. Finally, the lower end face of the fixed frame 40 is pressed against the upper end face of the large-diameter section of the reference pile 3, thus completing the placement process of the fixed frame 40. The cooperation between the reference pile 3 and the guide groove 30 ensures that the reference of the fixed frame 40 is consistent with the reference of the tilting frame 2. Then, the external hydraulic cylinder operates, causing its telescopic end to drive the drive plate 442 to move downward. The drive plate 442 rotates the two locking plates 441 through the hinge strip. The two locking plates 441 move out of the receiving groove 440 from the initial vertical direction and gradually rotate to a horizontal state. Finally, the locking plates 441 are located above the fixed frame 40. The fixed frame 40 is locked in the above manner, making it easy for the tilting frame 2 to drive the fixed frame 40 to rotate to the required angle, which is convenient for adapting to the required processing steps.

[0050] Regarding the state after the aforementioned fixed frame 40 is locked, it is necessary to further explain that the flipping frame 2 is hollow. The large-diameter section of the reference pile 3 supports the fixed frame 40 and the small-diameter section supports the pallet, so that the pallet is suspended and positioned away from the fixed frame 40 and the flipping frame 2. Therefore, it is convenient to perform the setting process on the lower end surface of the pallet after flipping, so as to meet the processing requirements of the pallet.

[0051] like Figure 7 As shown, a sliding block 45 is slidably provided on the right side of the fixed frame 40 and the upper end face of the sliding frame 41 along the corresponding length direction. A U-shaped frame 450 is fixedly provided on the sliding block 45 and the upper left end face of the fixed frame 40. The bonding plate 42 is rotatably mounted on the U-shaped frame 450.

[0052] like Figure 2 , Figure 5 and Figure 7 As shown, the drive assembly 43 includes an inclined sleeve 430. The inclined sleeve 430 is fixedly installed on the end face of the bonding plate 42 facing the reference pile 3. A connector 431 is inserted and installed on the inclined sleeve 430. The connector 431 and the inclined sleeve 430 are fixed by a pin. A contact roller 432 is rotatably installed on the upper end of the connector 431.

[0053] like Figure 7 , Figure 9 and Figure 10As shown, an L-shaped support frame 433 is fixedly installed on the end face of the bonding plate 42 away from the reference pile 3. When the bonding plate 42 contacts the support frame 433, it tilts towards the side of the oblique sleeve 430 closer to the reference pile 3.

[0054] like Figure 7 and Figure 8 As shown, the lower pressure block 420 is slidably disposed on the end face of the left and right side bonding plates 42 facing the reference pile 3. Both left and right side bonding plates 42 are rotatably provided with threaded rods 46 with vertical axes. The threaded rods 46 threaded through the corresponding lower pressure block 420. The upper end face of the threaded rods 46 is fixedly provided with a connecting piece 460.

[0055] See Figure 9 and Figure 10 During operation, in the initial state (the tray is not placed on the fixed frame 40, and the fixed frame 40 is placed on the flipping frame 2), since the weight of the bonding plate 42 is greater than the weight of the drive assembly 43, the bonding plate 42 is far away from the reference pile 3 and is in contact with the support frame 433. Through the support frame 433 supporting the bonding plate 42, the inclined sleeve 430 is in an inclined state close to the reference pile 3, and the contact roller 432 is above the reference pile 3 (at this time, the rotation axis of the bonding plate 42 is located between the contact roller 432 and the corresponding bonding plate 42). Then, the robot arm picks up the tray and places the tray from top to bottom. The lower end face of the tray first contacts the contact roller 432 and presses down the contact roller 432, so that the insertion frame 431 drives the bonding plate 42 to rotate synchronously through the inclined sleeve 430. Finally, when the tray contacts the upper end face of the reference pile 3, the bonding plate 42 is tightly attached to the tray and the bonding plate 42 is vertical. Therefore, the tray is circumferentially locked by the tight action of all the bonding plates 42.

[0056] The robotic arm then docks with the docking component 460, and the docking component 460 drives the threaded rod 46 to rotate. The threaded engagement between the threaded rod 46 and the lower pressure block 420 causes the lower pressure block 420 to move down and press down on the tray, thus locking the tray in the vertical direction. It should be noted that the docking component 460 has a cross-shaped docking slot. The robotic arm drives the docking component that matches the shape of the docking slot to dock, thereby driving the docking component 460 to rotate. The above process is all external existing technology, which is applicable to the above-mentioned operational requirements. The operator can choose to use it according to the requirements, and will not be elaborated further.

[0057] Regarding the drive assembly 43, it should be further explained that by using the contact roller 432 to contact the lower end face of the tray, the friction between the connector 431 and the tray is reduced through rolling contact. This avoids the problem of scratches or damage to the bottom of the tray due to excessive friction between the tray and the connector 431 during the rotation and bonding process of the bonding plate 42. Secondly, the shape of the connector 431 is selected and adapted according to the processing requirements of the upper and lower sides of the tray. This ensures that after the final bonding plate 42 clamps and bonds, the contact roller 432 avoids the required processing area on the tray. The shape of the connector 431 has been locked after multiple tests by those skilled in the art and can meet the above requirements. Further details will not be provided here. In addition, the connector 431 improves the convenience of replacement during the insertion process and is easy to adapt to the processing requirements of different trays.

[0058] like Figure 5 and Figure 7 As shown, multiple mounting slots 47 distributed along their respective length directions are provided through the right side of the fixed frame 40 and the sliding frame 41. A docking slot is provided through the sliding block 45. Locking bolts 471 are provided in the docking slot and the corresponding mounting slots 47. The position of the sliding block 45 is locked by tightening the locking bolts 471.

[0059] Before placing the pallet, adjust the right sliding block 45 according to the left and right length of the pallet so that the distance between the two mating plates 42 is the same as the left and right length of the pallet. Manually lock the right sliding block 45 and mating plate 42 by inserting the locking bolt 471 into the corresponding docking groove and mounting groove 47. Then, adjust the front and rear sliding blocks 45 and mating plates 42 according to the front and rear length of the pallet so that the front and rear mating plates 42 are symmetrical. Lock the front and rear sliding blocks 45 and mating plates 42 by inserting the locking bolt 471 into the corresponding docking groove and mounting groove 47. It should be noted that multiple mounting grooves 47 are used to adapt to pallets of corresponding specifications. The positions of the mounting grooves 47 are all obtained by those skilled in the art through testing, and will not be elaborated on here. After adjusting the position of the front and rear mating plates 42, move the sliding frame 41 left and right according to the processing area on the front and rear sides of the pallet so that the front and rear mating plates 42 avoid the processing area.

[0060] like Figure 3 As shown, a support roller 48 with its axis extending from front to back is rotatably provided on the lower end face of the sliding frame 41. The distance between the lower side of the support roller 48 and the sliding frame 41 is the same as the height of the large diameter section of the reference pile 3.

[0061] During operation, after the fixed frame 40 is placed on the flipping frame 2, the support roller 48 contacts the flipping frame 2 and supports the corresponding sliding frame 41 through the support roller 48, so that the front and rear side bonding plates 42 are accurately bonded to the pallet, avoiding the cantilever beam structure formed by the sliding frame 41 from affecting the accuracy of the pallet positioning and locking process.

[0062] It should be further explained that in the prior art, the pallet is locked using multiple separate locking components 44. When the robotic arm needs to move the pallet to another workstation, it needs to grip the pallet and reposition and fix it. This invention adds a fixing frame 40, a sliding frame 41, a bonding plate 42, a driving component 43, and a locking component 44. The pallet's own weight drives the bonding plate 42 to lock the pallet circumferentially, and the lower pressure plate locks the pallet vertically. The locking component 44 also integrates the pallet with the fixing frame 40, ultimately unifying the pallet's reference point with the fixing frame 40's reference point. This ensures seamless integration in subsequent processes. During the process, the fixed frame 40 is picked up and placed by a robotic arm. Therefore, in subsequent operations, it is only necessary to align the reference of the fixed frame 40 with the reference of the flipping frame 2 to complete the alignment process of the pallet reference. This avoids the tedious steps of repositioning the reference after picking up and placing, improving the convenience and efficiency of the operation. Secondly, the above-mentioned added components are all existing conventional components that can be reused multiple times. Therefore, compared with the long-term economic benefits of rapid alignment, the cost of the above-mentioned added components is negligible. In summary, this technical solution is a specific improvement made entirely based on the defects of the existing technology and to solve the defects of the technology.

[0063] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0064] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0066] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A positioning and flipping structure for processing battery trays, used in conjunction with a robotic arm, characterized in that, include: A movable seat, on which a flipping frame is rotatably mounted, and two reference piles distributed on the left and right with vertical axes are fixedly mounted on the flipping frame; A positioning mechanism is provided on the two reference piles. The positioning mechanism includes a fixed frame sleeved on the two reference piles. A sliding frame is slidably provided on both the front and rear end faces of the fixed frame. Adhesive plates are provided on both the left and right sides of the fixed frame and on the sliding frame. The front and rear bonding plates are provided with pressing blocks for pressing down the tray, and the right end face of the left bonding plate is fixedly provided with a reference block; When the bonding plate is tightly attached to the tray, the tray is in contact with the upper end surface of the reference pile; Each of the bonding plates is equipped with a drive assembly on its end face facing the reference pile. The drive assembly is pressed by the weight of the tray, so that the bonding plate is tightly attached to the tray. All the bonding plates together clamp the tray, and the reference pile supports the tray. The reference pile is equipped with a locking component for locking the fixing frame to it; The pallet's own weight is used to make the bonding plate adhere tightly to and clamp the pallet, and the pallet is locked and clamped in the circumferential and vertical directions by locking the lower pressure block. The pallet and the fixed frame are supported by the reference stake, and the reference stake is used to unify the reference between the fixed frame, the pallet and the flipping frame. After the bonding plate on the left is tightly attached to the tray, the reference block is vertically oriented and a reference hole is opened on the reference block. The reference hole on the reference block is used as the processing reference for the tray in the corresponding processing steps. The upper end face of the fixed frame is provided with guide grooves that correspond one-to-one with the reference piles. The reference piles pass through the corresponding guide grooves to unify the reference of the fixed frame and the reference of the flipping frame. The reference pile consists of a large-diameter section and a small-diameter section from bottom to top, and the diameter of the guide groove is the same as the diameter of the small-diameter section of the reference pile. The locking assembly includes a receiving groove, which is provided through the reference pile from left to right. Two symmetrical locking plates are rotatably arranged in the receiving groove. A driving plate located above the locking plates is slidably arranged in the receiving groove. The left and right sides of the driving plate are hinged to the locking plates through hinge strips. Sliding blocks are slidably provided on the right side of the fixed frame and the upper end face of the sliding frame along the corresponding length direction. U-shaped frames are fixedly provided on the sliding blocks and the upper left end face of the fixed frame. The bonding plate is rotatably mounted on the U-shaped frame. The drive assembly includes an inclined sleeve, an inclined sleeve is fixedly installed on the end face of the bonding plate facing the reference pile, an insertion frame is inserted and installed on the inclined sleeve, the insertion frame is fixed to the inclined sleeve by a pin, and a contact roller is rotatably installed on the upper end of the insertion frame. The lower pressure block is slidably mounted on the end face of the left and right side bonding plates facing the reference pile. Both left and right side bonding plates are rotatably mounted with vertically oriented threaded rods. The threaded rods are threaded through the corresponding lower pressure blocks, and the upper end face of the threaded rods is fixedly mounted with a connecting piece.

2. The positioning and flipping structure for battery tray processing according to claim 1, characterized in that: An L-shaped support frame is fixedly installed on the end face of the bonding plate away from the reference pile. When the bonding plate contacts the support frame, it tilts obliquely towards the side closer to the reference pile.

3. The positioning and flipping structure for battery tray processing according to claim 1, characterized in that: The right side of the fixed frame and the sliding frame are provided with multiple mounting slots distributed along their respective length directions. The sliding block is provided with a docking slot. The docking slot and the corresponding mounting slot are provided with locking bolts.

4. The positioning and flipping structure for battery tray processing according to claim 1, characterized in that: The lower end face of the sliding frame is rotatably equipped with a support roller whose axis extends from front to back. The distance between the lower side of the support roller and the sliding frame is the same as the height of the large diameter section of the reference pile.

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