A tray synchronous turnover machine

Abstract

The present application relates to the technical field of industrial automation, and especially relates to a tray synchronous turnover mechanism. A left linear driving element and a right linear driving element cooperatively act to respectively drive a left side sliding assembly and a right side sliding assembly to synchronously move along a slide rail, and the adaptation to different specifications of trays is realized by precisely adjusting the distance between the two. A rotary motor drives a middle transmission shaft assembly to rotate through a middle fixed transmission ratio transmission mechanism, and power is transmitted to a left transmission shaft and a right transmission shaft through a left spline transmission assembly and a right spline transmission assembly, respectively, and then the synchronous turnover is completed by driving a left clamping device and a right clamping device through a left fixed transmission ratio transmission mechanism and a right fixed transmission ratio transmission mechanism. In this way, not only is the risk of synchronous control failure avoided, the turnover operation precision is ensured, the material turnover process of the automatic production line is adapted, but also the structural design of the equipment is significantly simplified, which is conducive to reducing the manufacturing cost and the difficulty of later maintenance.

Description

Technical Field

[0001] This invention relates to the field of industrial automation technology, and in particular to a material tray synchronous flipping machine. Background Technology

[0002] In automated production lines for electronic components and precision parts, the material tray, as a core component for material carrying and transfer, often needs to be flipped to enable processes such as processing, inspection, unloading, or posture adjustment of the material on both sides. The stability, synchronization, and adaptability of the material tray flipping operation directly affect the processing accuracy, efficiency, and material qualification rate of the entire production line. Therefore, material tray flipping machinery has become a key component of automated production equipment.

[0003] Existing material tray turning machines are mainly divided into two categories: one is a fixed-spacing turning mechanism, whose clamping device spacing is fixed and can only adapt to material trays of a single specification size. When the production line needs to switch to different specifications of material trays, the clamping structure needs to be manually disassembled and adjusted, which is cumbersome and time-consuming, seriously affecting the efficiency of production changeover and making it difficult to meet the flexible production needs of multi-specification materials; the other is an adjustable-spacing turning mechanism, which usually uses dual power sources to drive the clamping devices on both sides to move to adjust the spacing, and at the same time, drives the clamping devices on both sides to turn through an independent rotary drive structure.

[0004] However, the aforementioned adjustable spacing flipping mechanism has obvious technical defects. Specifically, when the two clamping devices on both sides are driven by dual power sources, the movement of the two clamping devices is not synchronized due to factors such as differences in the output accuracy of the power sources and inconsistent transmission link losses. This can lead to problems such as material tray clamping offset and insufficient positioning accuracy. Furthermore, the dual rotary drive structure requires additional synchronization control debugging, which not only increases the structural complexity of the equipment, manufacturing costs, and the difficulty of later maintenance, but also makes it easy for the material tray to deviate in the flipping angle due to synchronization control failure, which will inevitably affect the normal operation of subsequent processes.

[0005] In summary, technical personnel are urgently needed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a material tray synchronous flipping machine, which aims to solve the problems of existing adjustable spacing flipping mechanisms that use dual power sources and dual rotation drive structures, resulting in asynchronous movement of the clamping devices on both sides, easy deviation of the flipping angle, high equipment complexity, and high maintenance difficulty.

[0007] This invention relates to a material tray synchronous flipping mechanism, comprising a base, a slide rail slider assembly, a left-position side sliding assembly, a right-position side sliding assembly, a left-position linear drive element, a right-position linear drive element, a rotary motor, a middle-position transmission shaft assembly, a left-position transmission shaft, a right-position transmission shaft, a middle-position fixed transmission ratio transmission mechanism, a left-position fixed transmission ratio transmission mechanism, a right-position fixed transmission ratio transmission mechanism, a left-position spline transmission assembly, a right-position spline transmission assembly, a left-position clamping device, and a right-position clamping device; The slide rail and slider assembly includes a slide rail fixedly assembled along the length of the base, and a left slider and a right slider that slide in cooperation with the slide rail; the left side sliding assembly is fixedly connected to the left slider, and the right side sliding assembly is fixedly connected to the right slider. Both the left and right linear drive elements are mounted on the base, and their output ends are respectively connected to the left and right side sliding components to drive the left and right side sliding components to move closer or further away synchronously. The rotary motor is fixedly mounted on the base, while the mid-position drive shaft assembly is supported by the base and maintains circumferential rotational freedom; the mid-position fixed transmission ratio transmission mechanism is connected between the rotary motor and the mid-position drive shaft assembly. The left drive shaft is rotatably mounted on the left side sliding assembly, and the right drive shaft is rotatably mounted on the right side sliding assembly. Both the left and right drive shafts are coaxially arranged with the middle drive shaft assembly. The left-position spline drive assembly is connected between the middle-position drive shaft assembly and the left-position drive shaft, and the right-position spline drive assembly is connected between the middle-position drive shaft assembly and the right-position drive shaft to form a power transmission path and adapt to the linear movement of the left-position side-slip assembly and the right-position side-slip assembly. The left-position fixed transmission ratio transmission mechanism is connected between the left-position drive shaft and the left-position clamping device, while the right-position fixed transmission ratio transmission mechanism is connected between the right-position drive shaft and the right-position clamping device. The left clamping device is mounted on the inner end of the left side sliding assembly, and the right clamping device is mounted on the inner end of the right side sliding assembly; the left fixed transmission ratio transmission mechanism is connected between the left drive shaft and the left clamping device, and the right fixed transmission ratio transmission mechanism is connected between the right drive shaft and the right clamping device; the left clamping device and the right clamping device are arranged opposite to each other, and they receive the power transmitted by the left drive shaft and the right drive shaft respectively through the left fixed transmission ratio transmission mechanism and the right fixed transmission ratio transmission mechanism.

[0008] As a further improvement to the technical solution disclosed in this invention, both the left linear drive element and the right linear drive element are servo cylinders or servo electric cylinders, and the two are linked and controlled by the same controller.

[0009] As a further improvement to the technical solution disclosed in this invention, the material tray synchronous flipping mechanism also includes a left position sensor and a right position sensor; the left position sensor is fixedly installed on the left side sliding assembly, while the right position sensor is fixedly installed on the right side sliding assembly; both the left and right position sensors are electrically connected to the controller and are used to collect the displacement signals of the left and right side sliding assemblies in real time and feed them back to the controller.

[0010] As a further improvement to the technical solution disclosed in this invention, the material tray synchronous flipping mechanism also includes a left mechanical limiting component and a right mechanical limiting component; the left mechanical limiting component is fixedly installed on the base and is used to limit the left limit position and the right limit position of the left side sliding component's travel; the right mechanical limiting component is fixedly installed on the base and is used to limit the left limit position and the right limit position of the right side sliding component's travel.

[0011] As a further improvement to the technical solution disclosed in this invention, the center transmission shaft assembly includes a left split shaft, a right split shaft, and a coupling; the left split shaft and the right split shaft are coaxially and fixedly connected by the coupling to form an integrated transmission structure; the end of the left split shaft away from the coupling is connected to the left spline transmission assembly, and the end of the right split shaft away from the coupling is connected to the right spline transmission assembly; the left split shaft and / or the right split shaft are both assembled on the base by deep groove ball bearings and supported by them.

[0012] As a further improvement to the technical solution disclosed in this invention, both the left-side clamping device and the right-side clamping device are pneumatic grippers or mechanical chucks, and their clamping actions are synchronized.

[0013] As a further improvement to the technical solution disclosed in this invention, the left-position spline transmission assembly includes a left-position external spline shaft and a left-position internal spline sleeve; the left-position external spline shaft is coaxially and fixedly connected to the left-position transmission shaft, and the left-position internal spline sleeve is coaxially and fixedly connected to the middle-position transmission shaft assembly, and the left-position external spline shaft and the left-position internal spline sleeve are clearance-fitted to form a sliding connection structure; the right-position spline transmission assembly includes a right-position external spline shaft and a right-position internal spline sleeve; the right-position external spline shaft is coaxially and fixedly connected to the right-position transmission shaft, and the right-position internal spline sleeve is coaxially and fixedly connected to the middle-position transmission shaft assembly, and the right-position external spline shaft and the right-position internal spline sleeve are clearance-fitted to form a sliding connection structure.

[0014] As a further improvement to the technical solution disclosed in this invention, the left external spline shaft includes a left external spline shaft body; the outer peripheral surface of the left external spline shaft body is integrally formed with a plurality of left keyways extending along the axial direction; the inner wall of the left internal spline sleeve is integrally formed with left internal spline teeth that mesh with the left keyways; the right external spline shaft includes a right external spline shaft body; the outer peripheral surface of the right external spline shaft body is integrally formed with a plurality of right keyways extending along the axial direction; the inner wall of the right internal spline sleeve is integrally formed with right internal spline teeth that mesh with the right keyways.

[0015] As a further improvement to the technical solution disclosed in this invention, the left external spline shaft also includes a left graphite strip; the outer circumferential surface of the left external spline shaft body is provided with a plurality of left strip-shaped mounting grooves for embedding the left graphite strip; after embedding, the outer surface of the left graphite strip protrudes from the outer circumferential surface of the left external spline shaft body and abuts tightly against the inner wall of the left inner spline sleeve; the right external spline shaft also includes a right graphite strip; the outer circumferential surface of the right external spline shaft body is provided with a plurality of right strip-shaped mounting grooves for embedding the right graphite strip; after embedding, the outer surface of the right graphite strip protrudes from the outer circumferential surface of the right external spline shaft body and abuts tightly against the inner wall of the right inner spline sleeve.

[0016] In practical applications, the synchronous turning mechanism for the material tray disclosed in this invention can achieve at least the following beneficial technical effects, specifically: 1) The rotary motor drives the center drive shaft assembly to rotate through the center fixed transmission ratio transmission mechanism. A complete power chain is established using the left and right spline transmission components. This not only ensures stable power transmission but also flexibly adapts to the linear movement of the left and right side-sliding components without requiring additional adjustments to the power transmission path. The single-source drive design, combined with the left and right fixed transmission ratio mechanisms, ensures complete synchronization of the flipping angle and rotation speed of the left and right clamping devices. This effectively simplifies the equipment structure, reduces manufacturing costs, avoids the potential risks of multi-power-source synchronous control, and significantly improves the stability and reliability of power transmission. 2) The left linear drive element, the right linear drive element, the slide rail slider assembly, the left side sliding assembly, and the right side sliding assembly form a transmission link. Relying on the stable guidance provided by the slide rail, the left linear drive element and the right linear drive element can synchronously drive the left side sliding assembly and the right side sliding assembly to move closer or further away. This ensures that the left clamping device and the right clamping device maintain a centered posture during the spacing adjustment process, avoids the material tray clamping offset, and lays a precise positioning foundation for subsequent flipping operations. 3) Through precise coordinated adjustment of the left and right linear drive elements, the equipment can adapt to different sizes of trays without disassembling or adjusting any structure, significantly expanding its operational range. Furthermore, the left and right clamping devices are arranged in opposite directions, ensuring uniform and stable clamping force on the tray. Combined with the equipment's stable power transmission system and the guiding structure of the slide rail assembly, the tray is not only firmly fixed during spacing adjustment but also precisely maintained during flipping, effectively ensuring the smoothness of the flipping operation and providing stable material posture support for subsequent processing and inspection. Attached Figure Description

[0017] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram from one perspective of the synchronous flipping mechanism of the material tray involved in this invention.

[0019] Figure 2 This is a three-dimensional schematic diagram from another perspective of the synchronous flipping mechanism of the material tray involved in this invention.

[0020] Figure 3 yes Figure 1 Top view.

[0021] Figure 4 yes Figure 3 AA sectional view.

[0022] Figure 5 This is a schematic diagram of the state of the material tray synchronous flipping machine according to one perspective after the middle drive shaft assembly, left drive shaft, right drive shaft, left spline drive assembly and right spline drive assembly are assembled.

[0023] Figure 6 This is a schematic diagram from another perspective of the state of the material tray synchronous flipping machine involved in this invention after the middle drive shaft assembly, left drive shaft, right drive shaft, left spline drive assembly and right spline drive assembly are assembled.

[0024] Figure 7 This is a schematic diagram showing the state of the left-side drive shaft and the left-side external spline shaft combined into one unit in the synchronous turning mechanism of the material tray involved in this invention.

[0025] Figure 8 This is a three-dimensional schematic diagram of the left-side inner spline sleeve in the synchronous flipping mechanism of the material tray involved in this invention.

[0026] Figure 9 This is a schematic diagram showing the state of the right-side drive shaft and the right-side external spline shaft combined into one unit in the synchronous turning mechanism of the material tray involved in this invention.

[0027] Figure 10 This is a three-dimensional schematic diagram of the right-side inner spline sleeve in the synchronous flipping mechanism of the material tray involved in this invention.

[0028] 1-Base; 2-Slide rail and slider assembly; 21-Slide rail; 22-Left slider; 23-Right slider; 3-Left side slide assembly; 4-Right side slide assembly; 5-Left servo cylinder; 6-Right servo cylinder; 7-Rotary motor; 8-Middle drive shaft assembly; 81-Left split shaft; 82-Right split shaft; 83-Coupling; 9-Left drive shaft; 10-Right drive shaft; 11-Middle synchronous belt drive mechanism; 12-Left synchronous belt drive mechanism; 13-Right synchronous belt drive mechanism; 14-Left spline drive assembly; 141-Left external spline shaft ; 1411-Left external spline shaft body; 14111-Left keyway; 1412-Left graphite strip; 142-Left internal spline sleeve; 1421-Left internal spline tooth; 15-Right spline transmission assembly; 151-Right external spline shaft; 1511-Right external spline shaft body; 15111-Right keyway; 1512-Right graphite strip; 152-Right internal spline sleeve; 1521-Right internal spline tooth; 16-Left gripper cylinder; 17-Right gripper cylinder; 18-Bearing seat; 19-Left mechanical limit assembly; 20-Right mechanical limit assembly. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments. Figure 1 , Figure 2The diagrams show two perspective views of the synchronous flipping mechanism for the material tray involved in this invention. It can be seen that it mainly consists of a base 1, a slide rail slider assembly 2, a left side sliding assembly 3, a right side sliding assembly 4, a left servo cylinder 5, a right servo cylinder 6, a rotary motor 7, a middle transmission shaft assembly 8, a left transmission shaft 9, a right transmission shaft 10, a middle synchronous belt transmission mechanism 11, a left synchronous belt transmission mechanism 12, a right synchronous belt transmission mechanism 13, a left spline transmission assembly 14, a right spline transmission assembly 15, a left gripper cylinder 16, a right gripper cylinder 17, a bearing seat 18, a left mechanical limit assembly 19, and a right mechanical limit assembly 20. Among them, the base 1 serves as the installation foundation and load-bearing frame of the entire material tray synchronous flipping machine, providing an assembly benchmark for all functional components; the slide rail slider assembly 2 provides precise guidance for the movement of the left side sliding assembly 3 and the right side sliding assembly 4, thereby ensuring the smoothness of the distance adjustment process between them; the left servo cylinder 5 provides power support for the lateral movement of the left side sliding assembly 3, and the right servo cylinder 6 provides power support for the lateral movement of the right side sliding assembly 4; the rotary motor 7, together with the middle drive shaft assembly 8, the left drive shaft 9, the right drive shaft 10, the middle synchronous belt drive mechanism 11, the left synchronous belt drive mechanism 12, and the right synchronous belt drive mechanism 13, jointly construct a unified flipping power transmission system to ensure that the actions of the left gripper cylinder 16 and the right gripper cylinder 17 are coordinated and consistent; the left gripper cylinder 16 and the right gripper cylinder 17 are arranged opposite each other, and the two work together to achieve stable clamping and synchronous flipping of the material tray.

[0030] like Figures 1-4 As shown, the slide rail and slider assembly 2 includes a slide rail 21 fixedly mounted along the length of the base 1, and a left slider 22 and a right slider 23 that slide in cooperation with the slide rail 21. The left side sliding assembly 3 is fixedly connected to the left slider 22, and the right side sliding assembly 4 is fixedly connected to the right slider 23. The left servo cylinder 5 and the right servo cylinder 6 are both fixedly mounted on the base 1. The output end of the left servo cylinder 5 is drivenly connected to the left side sliding assembly 3, and the output end of the right servo cylinder 6 is drivenly connected to the right side sliding assembly 4. The left servo cylinder 5 and the right servo cylinder 6 are linked and controlled by the same controller (not shown in the figure). In this way, the left servo cylinder 5 and the right servo cylinder 6 can drive the left side sliding assembly 3 and the right side sliding assembly 4 to move closer or further away synchronously. This allows for adaptation to different sizes of trays without disassembling or adjusting any structure, thus greatly expanding the operational adaptability of the tray synchronous flipping machine.

[0031] To further improve the synchronization accuracy of spacing adjustment and the safety of equipment operation, the material tray synchronous flipping machine is also equipped with a left position sensor and a right position sensor (not shown in the figure). The left position sensor is fixedly installed on the left side sliding assembly 3, and the right position sensor is fixedly installed on the right side sliding assembly 4. Both the left and right position sensors are electrically connected to the controller that controls the left servo cylinder 5 and the right servo cylinder 6. In practical applications, the left position sensor collects the displacement signal of the left side sliding assembly 3 in real time and feeds it back to the controller, and the right position sensor collects the displacement signal of the right side sliding assembly 4 in real time and feeds it back to the controller. Based on the displacement signals fed back by the left and right position sensors, the controller dynamically calibrates the output action of the left servo cylinder 5 and the right servo cylinder 6 to ensure that the movement steps of the left side sliding assembly 3 and the right side sliding assembly 4 are completely consistent, thereby ensuring that the left gripper cylinder 16 and the right gripper cylinder 17 always maintain a centered posture during the spacing adjustment process, effectively avoiding material tray clamping deviation.

[0032] like Figure 1 , Figure 2 As shown, a left mechanical limit assembly 19 and a right mechanical limit assembly 20 are fixedly installed on the base 1. The left mechanical limit assembly 19 is used to limit the left and right limits of the travel of the left side sliding assembly 3, while the right mechanical limit assembly 20 is used to limit the left and right limits of the travel of the right side sliding assembly 4. This effectively prevents the left side sliding assembly 3 and the right side sliding assembly 4 from colliding and being damaged due to overtravel, and provides a reliable safety guarantee for the operation of the material tray synchronous flipping machine.

[0033] The following section will elaborate on the tilting power transmission system. For example... Figures 1-4 As shown, the rotary motor 7 is fixedly mounted on the base 1, serving as the sole power source for the tray's tilting action. The intermediate drive shaft assembly 8 is supported by the base 1 via a bearing housing 18, and maintains circumferential rotational freedom. The intermediate synchronous belt drive mechanism 11 connects the output end of the rotary motor 7 to the intermediate drive shaft assembly 8, achieving initial power transmission and stable speed output. Figures 3-6 As shown, the center drive shaft assembly 8 includes a left split shaft 81, a right split shaft 82, and a coupling 83. The left split shaft 81 and the right split shaft 82 are coaxially fixedly connected by the coupling 83 to form an integrated transmission structure; the right split shaft 82 is assembled in the bearing housing 18 by a deep groove ball bearing.

[0034] The left drive shaft 9 is rotatably mounted on the left side sliding assembly 3, and the right drive shaft 10 is rotatably mounted on the right side sliding assembly 4. Both the left and right drive shafts 9 and 10 are coaxially arranged with the middle drive shaft assembly 8. The left spline drive assembly 14 connects the left split shaft 81 of the middle drive shaft assembly 8 to the left drive shaft 9, and the right spline drive assembly 15 connects the right split shaft 82 of the middle drive shaft assembly 8 to the right drive shaft 10. The left and right spline drive assemblies 14 and 15 together form a complete power transmission path and can flexibly adapt to the linear movement of the left and right side sliding assemblies 3 and 4, ensuring uninterrupted power transmission during the spacing adjustment of the left and right side sliding assemblies 3 and 4, thus achieving flexible compatibility between power transmission and spacing adjustment.

[0035] Specifically, the left-position splined transmission assembly 14 includes a left-position external splined shaft 141 and a left-position internal splined sleeve 142. The left-position external splined shaft 141 is coaxially and fixedly connected to the left-position transmission shaft 9, and the left-position internal splined sleeve 142 is coaxially and fixedly connected to the left-position split shaft 81. The left-position external splined shaft 141 and the left-position internal splined sleeve 142 are clearance-fitted to form a sliding connection structure. Correspondingly, the right-position splined transmission assembly 15 includes a right-position external splined shaft 151 and a right-position internal splined sleeve 152. The right-position external splined shaft 151 is coaxially and fixedly connected to the right-position transmission shaft 10, and the right-position internal splined sleeve 152 is coaxially and fixedly connected to the right-position split shaft 82 of the middle-position transmission shaft assembly 8. The right-position external splined shaft 151 and the right-position internal splined sleeve 152 are clearance-fitted to form a sliding connection structure.

[0036] like Figure 7 , Figure 8 As shown, the left external spline shaft 141 includes a left external spline shaft body 1411. The outer circumferential surface of the left external spline shaft body 1411 is integrally formed with a plurality of axially extending left keyways 14111. The inner wall of the left internal spline sleeve 142 is integrally formed with left internal spline teeth 1421 that mesh with the left keyways 14111. Figure 9 , Figure 10 As shown, the right-side external spline shaft 151 includes a right-side external spline shaft body 1511. The outer circumferential surface of the right-side external spline shaft body 1511 is integrally formed with several axially extending right-side keyways 15111. The inner wall of the right-side internal spline sleeve 152 is integrally formed with right-side internal spline teeth 1521 that mesh with the right-side keyways 15111. Through the spline meshing structure of the left-side keyway 14111 and the left-side internal spline teeth 1421, and the right-side keyway 15111 and the right-side internal spline teeth 1521, reliable power transmission is achieved. Simultaneously, the spline engagement allows for axial relative sliding, ensuring that power transmission is not affected when the left-side sliding assembly 3 and the right-side sliding assembly 4 move.

[0037] To reduce sliding friction loss between the left spline transmission assembly 14 and the right spline transmission assembly 15 during operation, and to improve transmission smoothness and equipment lifespan, such as Figure 7 As shown, the left-side external spline shaft 141 also includes a left-side graphite strip 1412. Multiple mounting slots for embedding the left-side graphite strip 1412 are evenly distributed circumferentially on the outer peripheral surface of the left-side external spline shaft body 1411. After embedding, the outer surface of the left-side graphite strip 1412 protrudes from the outer peripheral surface of the left-side external spline shaft body 1411 and tightly abuts against the inner wall of the left-side inner spline sleeve 142; similarly, as... Figure 9 As shown, the right-side external spline shaft 151 includes a right-side graphite strip 1512. Multiple mounting slots for embedding the right-side graphite strip 1512 are evenly distributed circumferentially on the outer peripheral surface of the right-side external spline shaft body 1511. After embedding, the outer surface of the right-side graphite strip 1512 protrudes from the outer peripheral surface of the right-side external spline shaft body 1511 and tightly abuts against the inner wall of the right-side inner spline sleeve 152. Both the left-side graphite strip 1412 and the right-side graphite strip 1512 can provide automatic lubrication, reducing frictional resistance and wear during relative sliding.

[0038] As Figures 1-4 As shown, the left synchronous belt drive mechanism 12 is connected between the left drive shaft 9 and the left gripper cylinder 16, and the right synchronous belt drive mechanism 13 is connected between the right drive shaft 10 and the right gripper cylinder 17. The left gripper cylinder 16 is mounted on the inner end of the left side sliding assembly 3, and the right gripper cylinder 17 is mounted on the inner end of the right side sliding assembly 4. The left gripper cylinder 16 and the right gripper cylinder 17 are arranged opposite to each other, and their gripping actions are synchronized. The power output from the rotary motor 7 is transmitted to the central drive shaft assembly 8 via the central synchronous belt drive mechanism 11. The central drive shaft assembly 8 then transmits the power to the left drive shaft 9 and the right drive shaft 10 via the left spline drive assembly 14 and the right spline drive assembly 15, respectively. The left drive shaft 9 transmits the power to the left gripper cylinder 16 via the left synchronous belt drive mechanism 12, and the right drive shaft 10 transmits the power to the right gripper cylinder 17 via the right synchronous belt drive mechanism 13. Ultimately, this drives the left gripper cylinder 16 and the right gripper cylinder 17 to rotate synchronously. The use of a single rotary power source combined with the constant transmission ratio design of the left and right synchronous belt drive mechanisms 12 and 13 ensures that the rotation angle and speed of the left and right gripper cylinders 16 and 17 are completely consistent, significantly improving the accuracy and stability of the rotation operation.

[0039] In practical use, the opposing arrangement of the left-position gripper cylinder 16 and the right-position gripper cylinder 17 ensures uniform and stable clamping force on the material tray. Combined with the stable rotation power transmission system of the material tray synchronous rotation machine and the guiding structure of the slide rail slider assembly 2, the material tray can be firmly fixed during spacing adjustment and its posture can be precisely maintained during rotation, effectively ensuring the stability of the rotation operation and providing stable material posture support for subsequent processing and inspection. Furthermore, the single rotary power source design effectively simplifies the overall structure of the material tray synchronous rotation machine, reduces the manufacturing cost and maintenance difficulty, avoids the potential risks of multi-power source synchronous control, and significantly improves the stability and reliability of power transmission. The matching design of the left-position spline transmission assembly 14 and the right-position spline transmission assembly 15 ensures continuous and stable power transmission during the movement of the left-position side sliding assembly 3 and the right-position side sliding assembly 4, further ensuring the continuity of the overall operation of the material tray synchronous rotation machine.

[0040] In summary, the tray synchronous flipping machine disclosed in this invention constructs an efficient, precise, and stable operating system through the organic integration and synergistic cooperation of various components: the linkage control of the left servo cylinder 5 and the right servo cylinder 6, combined with the feedback calibration of the left and right position sensors, achieves precise synchronization of spacing adjustment and adaptation to multiple tray specifications; the single rotary power source, combined with the middle transmission shaft assembly 8, the left spline transmission assembly 14, the right spline transmission assembly 15, the left synchronous belt transmission mechanism 12, and the right synchronous belt transmission mechanism 13, ensures the synchronicity and stability of the flipping action, and can fully meet the tray flipping requirements of automated production lines for electronic components, precision parts, etc.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material tray synchronous flipping machine, characterized in that, It includes a base, a slide rail and slider assembly, a left-position side slide assembly, a right-position side slide assembly, a left-position linear drive element, a right-position linear drive element, a rotary motor, a middle-position transmission shaft assembly, a left-position transmission shaft, a right-position transmission shaft, a middle-position fixed transmission ratio transmission mechanism, a left-position fixed transmission ratio transmission mechanism, a right-position fixed transmission ratio transmission mechanism, a left-position spline transmission assembly, a right-position spline transmission assembly, a left-position clamping device, and a right-position clamping device; The slide rail and slider assembly includes a slide rail fixedly mounted along the length of the base and a left slider and a right slider that slide with the slide rail; the left side sliding assembly is fixedly connected to the left slider, and the right side sliding assembly is fixedly connected to the right slider. The left linear drive element and the right linear drive element are both mounted on the base, and their output ends are respectively connected to the left side sliding assembly and the right side sliding assembly to drive the left side sliding assembly and the right side sliding assembly to move closer or further away synchronously. The rotary motor is fixedly mounted on the base, while the mid-position drive shaft assembly is supported by the base and maintains circumferential rotational freedom; the mid-position fixed transmission ratio transmission mechanism is connected between the rotary motor and the mid-position drive shaft assembly. The left drive shaft is rotatably mounted on the left side slide assembly, and the right drive shaft is rotatably mounted on the right side slide assembly. Both the left and right drive shafts are coaxially arranged with the middle drive shaft assembly. The left-position spline transmission assembly is connected between the middle-position transmission shaft assembly and the left-position transmission shaft, and the right-position spline transmission assembly is connected between the middle-position transmission shaft assembly and the right-position transmission shaft to form a power transmission path and adapt to the linear movement of the left-position side-slip assembly and the right-position side-slip assembly. The left clamping device is mounted on the inner end of the left side sliding assembly, and the right clamping device is mounted on the inner end of the right side sliding assembly; the left fixed transmission ratio transmission mechanism is connected between the left drive shaft and the left clamping device, and the right fixed transmission ratio transmission mechanism is connected between the right drive shaft and the right clamping device; the left clamping device and the right clamping device are arranged opposite to each other, and both receive power transmitted by the left drive shaft and the right drive shaft respectively through the left fixed transmission ratio transmission mechanism and the right fixed transmission ratio transmission mechanism.

2. The material tray synchronous flipping mechanism according to claim 1, characterized in that, Both the left-position linear drive element and the right-position linear drive element are servo cylinders or servo electric cylinders, and they are linked and controlled by the same controller.

3. The synchronous turning mechanism for the material tray according to claim 2, characterized in that, It also includes a left position sensor and a right position sensor; the left position sensor is fixedly installed on the left side sliding assembly, and the right position sensor is fixedly installed on the right side sliding assembly; both the left position sensor and the right position sensor are electrically connected to the controller, and are used to collect the displacement signals of the left side sliding assembly and the right side sliding assembly in real time and feed them back to the controller.

4. The synchronous turning mechanism for the material tray according to claim 2, characterized in that, It also includes a left-position mechanical limiting component and a right-position mechanical limiting component; the left-position mechanical limiting component is fixedly installed on the base and is used to limit the left and right limit positions of the travel of the left-position side sliding component; the right-position mechanical limiting component is fixedly installed on the base and is used to limit the left and right limit positions of the travel of the right-position side sliding component.

5. The synchronous turning mechanism for the material tray according to claim 1, characterized in that, The center drive shaft assembly includes a left split shaft, a right split shaft, and a coupling; the left split shaft and the right split shaft are coaxially and fixedly connected by the coupling to form an integrated transmission structure; the end of the left split shaft away from the coupling is connected to the left spline transmission assembly, and the end of the right split shaft away from the coupling is connected to the right spline transmission assembly; the left split shaft and / or the right split shaft are both mounted on the base by deep groove ball bearings and supported by the base.

6. The synchronous turning mechanism for the material tray according to claim 1, characterized in that, Both the left-side clamping device and the right-side clamping device are pneumatic grippers or mechanical chucks, and their clamping actions are synchronized.

7. The synchronous turning mechanism for the material tray according to any one of claims 1-6, characterized in that, The left-position spline transmission assembly includes a left-position external spline shaft and a left-position internal spline sleeve; the left-position external spline shaft is coaxially and fixedly connected to the left-position transmission shaft, and the left-position internal spline sleeve is coaxially and fixedly connected to the middle-position transmission shaft assembly, with the left-position external spline shaft and the left-position internal spline sleeve forming a sliding connection structure with a clearance fit; the right-position spline transmission assembly includes a right-position external spline shaft and a right-position internal spline sleeve; the right-position external spline shaft is coaxially and fixedly connected to the right-position transmission shaft, and the right-position internal spline sleeve is coaxially and fixedly connected to the middle-position transmission shaft assembly, with the right-position external spline shaft and the right-position internal spline sleeve forming a sliding connection structure with a clearance fit.

8. The synchronous turning mechanism for the material tray according to claim 7, characterized in that, The left external spline shaft includes a left external spline shaft body; the outer circumferential surface of the left external spline shaft body is integrally formed with a plurality of left keyways extending axially; the inner wall of the left internal spline sleeve is integrally formed with left internal spline teeth that mesh with the left keyways; the right external spline shaft includes a right external spline shaft body; the outer circumferential surface of the right external spline shaft body is integrally formed with a plurality of right keyways extending axially; the inner wall of the right internal spline sleeve is integrally formed with right internal spline teeth that mesh with the right keyways.

9. The synchronous turning mechanism for the material tray according to claim 8, characterized in that, The left external spline shaft also includes a left graphite strip; the outer circumferential surface of the left external spline shaft body is provided with a plurality of left strip-shaped mounting grooves for embedding the left graphite strip; after embedding, the outer surface of the left graphite strip protrudes from the outer circumferential surface of the left external spline shaft body and abuts tightly against the inner wall of the left internal spline sleeve; the right external spline shaft also includes a right graphite strip; the outer circumferential surface of the right external spline shaft body is provided with a plurality of right strip-shaped mounting grooves for embedding the right graphite strip; after embedding, the outer surface of the right graphite strip protrudes from the outer circumferential surface of the right external spline shaft body and abuts tightly against the inner wall of the right internal spline sleeve.

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