Workpiece turnover mechanism for foundry finishing

Abstract

This invention provides a workpiece flipping mechanism for grinding castings, including a carrying component, a flipping component mounted on the carrying component, a transmission disk connected to the output end of the flipping component, a clamping mechanism for holding the casting on the transmission disk, and a cleaning mechanism at the bottom of the clamping mechanism. The cleaning mechanism includes a fixed frame with an arc-shaped guide rail coaxial with the flipping axis of the clamping mechanism. Multiple spaced-apart flow guiding units are slidably connected to the guide rail, and the flow guiding units can slowly return to their original position after sliding. Transmission components are located on both sides of the clamping mechanism. When the clamping mechanism flips, the transmission components push the flow guiding units along the guide rail, causing the multiple flow guiding units to converge towards the corresponding side, and returning to their spaced-apart state after the transmission components separate. Through the above configuration, the flow guiding units can cover a large cleaning area in the initial state and automatically adjust their distribution during the casting flipping process, improving the concentration of airflow in local areas.

Description

Technical Field

[0001] This invention relates to the field of grinding tooling, specifically a workpiece flipping mechanism for grinding castings. Background Technology

[0002] Castings, as basic structural components commonly used in machinery, automotive parts, and engineering equipment, typically achieve complex shapes through casting. However, during the casting process, defects such as burrs, flash, oxide layers, and adhering molding sand and residues can easily form on the surface of castings, affecting their dimensional accuracy, surface quality, and subsequent assembly performance. Therefore, before being put into use, castings usually require surface treatment through grinding, polishing, and other processing methods to remove surface defects and improve the overall quality of the casting.

[0003] For large castings, box-shaped castings, shell-shaped castings, and castings with complex curved surfaces, due to their large size and complex distribution of machining areas, a single clamping often cannot cover the entire surface to be machined. Especially when grinding is required on opposite sides of the casting, the limitations of the fixture installation position and the range of motion of the grinding equipment often necessitate that after machining one side of the surface, the casting be flipped so that the other side to be machined can be moved to the machining area, in order to achieve continuous multi-faceted machining of the casting.

[0004] Currently, casting flipping is typically achieved using flipping fixtures, rotary jigs, or clamping equipment with rotation functions. During the flipping process, the clamping mechanism needs to reliably fix the casting and rotate it around a preset axis to change the position of the surface to be machined. However, the grinding process of castings generates a large amount of dust, shavings, and loose impurities. These impurities easily adhere to the casting surface, affecting the quality of subsequent machining and also polluting the machining environment. Therefore, during casting flipping, a cleaning mechanism is usually required to simultaneously clean the machining area and the casting surface.

[0005] Existing cleaning mechanisms typically employ fixed air nozzles or airflow guide structures to remove dust by continuously supplying airflow to the processing area. However, during the casting's flipping process, the position and orientation of the casting surface change, making it difficult for a fixed-direction airflow to consistently target the effective cleaning area. When the casting is in different flipping postures, areas closer to the processing area require stronger localized cleaning, while the surface of the casting after flipping requires more uniform cleaning over a larger area. Existing fixed cleaning structures struggle to adjust the airflow range and concentration according to changes in the casting's posture, easily leading to insufficient cleaning in some areas or reduced cleaning efficiency. Summary of the Invention

[0006] In order to solve the problem that the fixed cleaning structure is difficult to adapt to the changes in the posture of the casting during the existing casting turning and grinding process, and cannot take into account both the local reinforcement cleaning during the turning process and the large-area coverage cleaning after the turning process, resulting in poor dust and debris removal effect on the surface of the casting, this invention provides a workpiece turning mechanism for casting grinding.

[0007] The present invention solves the above-mentioned technical problems through the following technical solutions: The present invention provides a workpiece flipping mechanism for grinding castings, including a bearing component, a flipping component on the bearing component, a transmission disk connected to the output end of the flipping component, a clamping mechanism for clamping the casting fixed on the transmission disk, and a cleaning mechanism at the bottom of the clamping mechanism. The cleaning mechanism includes a fixed frame, which is located at the bottom of the clamping mechanism. The fixed frame is provided with an arc-shaped guide rail. The center of the guide rail is coaxial with the flipping axis of the clamping mechanism. Multiple flow guiding units are slidably connected on the guide rail and spaced apart along the extension direction of the guide rail. The flow guiding units can slowly return to their initial position after sliding. The clamping mechanism is provided with transmission components on both sides along its flipping direction. When the clamping mechanism flips, the transmission components that rotate with the clamping mechanism come into contact with the flow guiding unit located at one end of the guide rail and push the flow guiding unit to slide along the guide rail, so that multiple flow guiding units move in sequence and gather on the side corresponding to the flipping direction of the clamping mechanism. When the transmission components separate from the flow guiding units, the multiple flow guiding units slowly return to the spaced distribution state.

[0008] In this technical solution, the load-bearing component includes a frame, a drive unit is fixed on the top of the frame, and a lifting platform that can move vertically is fixed on the output end at the bottom of the drive unit. A tilting assembly is fixed on the lifting platform.

[0009] In this technical solution, the tilting assembly includes a tilting cylinder, which is fixed on the lifting platform, and a transmission disc is fixed on the output end of the tilting cylinder. The clamping mechanism includes a mounting component and a clamping component, with the clamping component fixed to the drive plate by the mounting component.

[0010] In this technical solution, the mounting component includes a fixed base, which is fixedly mounted on the transmission disk. A mounting bracket is fixedly connected to the fixed base, and the two sides of the mounting bracket extend outward to form two symmetrically arranged mounting plates. The clamping assembly includes two clamping parts arranged opposite each other, which are respectively disposed on two mounting plates; The mounting plate is provided with a pusher for forming a transmission assembly. The pusher rotates with the clamping assembly and pushes the guide unit located at the corresponding end of the guide rail to slide along the guide rail.

[0011] In this technical solution, the clamping part includes a driving member fixedly mounted on the mounting plate, and the output end of the driving member is fixedly connected to a clamping member; the two driving members drive the corresponding clamping members to move towards each other in the horizontal direction, thereby clamping and fixing the casting located between them through the two clamping members.

[0012] In this technical solution, the mounting plate is also provided with a transmission component, which is used to drive the cleaning mechanism to move during the flipping of the clamping component, so as to realize the linkage between the flipping action of the clamping component and the cleaning process.

[0013] In this technical solution, the flow guiding unit includes a flow guiding shell that communicates with an external air pump and an adjustment component for adjusting the position of the flow guiding shell. The adjustment component includes a slider that is slidably set on a guide rail, and the flow guiding shell is fixedly installed on a mounting block on the slider. Adjacent sliders are connected by a reset component, and the sliders located at both ends of the guide rail are respectively provided with the driven part of the transmission assembly; A retarder is installed between the slider and the guide rail. The retarder is used to limit the slider's movement speed on the guide rail, so that the slider gradually returns to its initial position along the guide rail from the moved position.

[0014] In this technical solution, the transmission assembly includes a pushing part and a driven part. The pushing part includes a drive plate fixedly mounted on the clamping assembly. The drive plate can rotate synchronously with the clamping assembly. The driven part includes a driven plate that overlaps with the drive plate during rotation. The driven plate is rotatably connected to one end of the connecting rod, and the connecting rod is fixedly mounted on the corresponding slider. A first coil spring is provided at the rotatable connection between the driven plate and the connecting rod.

[0015] In this technical solution, an adjustment unit is also included. During the process of the guide shell moving along the guide rail with the slider under the action of the transmission component, the adjustment unit drives the guide shell to rotate relative to the mounting block, so that the air outlet set on the vertical guide shell deflects toward the casting side. The flow guide shell is rotatably connected to the mounting block on the surface of the slider, and the flow guide shell can rotate back to its initial position after rotation.

[0016] In this technical solution, the adjustment part includes a guide rack that is fixed in position relative to the clamping component in the rotating state. The guide rack is arranged in an arc shape and is coaxial with the rotation trajectory of the clamping component when it is flipped. The adjustment unit also includes a driven gear that is fixedly connected to the guide shell on the same axis. A transmission gear that meshes with the driven gear is provided on one side of the driven gear. The transmission gear also meshes with the guide rack. Both the driven gear and the transmission gear are rotatably mounted on the connecting frame and can rotate relative to the connecting frame. The connecting frame is fixedly connected to the corresponding slider by a mounting rod.

[0017] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0018] The positive and progressive effects of this invention are as follows: In this application, by setting a cleaning mechanism at the bottom of the clamping mechanism and distributing multiple flow guiding units at intervals along an arc-shaped guide rail coaxial with the rotation axis of the clamping mechanism, each flow guiding unit can cover a large flow guiding area in the initial state, thereby forming a uniform cleaning effect on the surface of the casting to be processed.

[0019] When the casting is machined on one side and flipped, the transmission components on the clamping mechanism move synchronously with the flipping action, pushing the guide units at the end of the guide rail to move along the guide rail. This causes multiple guide units to sequentially generate linked displacements and converge towards the side corresponding to the flipping direction of the clamping mechanism. As multiple guide units gradually change from a dispersed state to a concentrated state, the density of guide units in the guide area near the casting surface increases during the flipping process. This enhances the concentration of airflow in that area, thereby improving the ability to clean residual dust, debris, and loose impurities from the casting surface during the flipping process.

[0020] Furthermore, since the gathering action of the flow guiding unit is directly driven by the flipping action of the clamping mechanism, there is no need to set up an additional independent power source. This allows the cleaning mechanism to automatically adjust the distribution state of the flow guiding unit according to the casting flipping process, so that the flow guiding area can change with the casting posture, thereby improving the synchronization between the cleaning mechanism and the processing process during the flipping process.

[0021] After the transmission assembly completes its rotation with the clamping mechanism and disengages from the flow guiding unit, each flow guiding unit slowly returns to its initial spacing distribution. During this process, the movement of the flow guiding unit allows the flow guiding area to gradually expand, thereby changing the cleaning process from localized enhanced cleaning to overall coverage cleaning of the processed surface, improving the removal effect of residual dust on the processed surface.

[0022] Therefore, this application utilizes the casting flipping action to drive the flow guiding unit to automatically switch between a dispersed state and a concentrated state, enabling the cleaning mechanism to adjust the flow guiding coverage and flow guiding intensity according to different cleaning needs before and after flipping. This improves the surface cleaning effect during the continuous double-sided processing of castings without the need for additional control mechanisms. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A structural diagram from another perspective; Figure 3 For the present invention Figure 1 A schematic diagram of the structure viewed from below; Figure 4 This is a schematic diagram of the installation component, clamping component, and flow guiding unit of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure viewed from below; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point I; Figure 7 This is a schematic diagram of the structure of a single cleaning mechanism of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure viewed from below; Figure 9 This is a schematic diagram of the structure of the adjusted component of the present invention; Figure 10 For the present invention Figure 9 A structural diagram from another perspective; Figure 11 For the present invention Figure 9 A top-view structural diagram.

[0024] Explanation of reference numerals in the attached figures 101. Cleaning up organizations; 1. Load-bearing components; 11. Frame; 12. Drive unit; 13. Transmission rod; 14. Lifting platform; 15. Guide rod; 2. Tilting cylinder; 21. Transmission disc; 3. Installation components; 31. Mounting bracket; 32. Mounting frame; 4. Clamping assembly; 41. Driving component; 42. Clamping component; 5. Fixture; 51. Guide rail; 52. Guide rack; 6. Adjustment component; 61. Slider; 62. Mounting block; 63. Guide telescopic rod; 64. Guide sleeve; 65. Drive shaft; 66. Synchronous shaft; 67. Driven gear; 68. Transmission gear; 69. Connecting frame; 691. Mounting rod; 7. Flow guide shell; 71. Connecting pipe; 72. Fixing rod; 8. Transmission assembly; 81. Drive plate; 82. Connecting rod; 83. Driven plate. Detailed Implementation

[0025] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0026] like Figure 1 and Figure 2As shown, the workpiece flipping mechanism for grinding castings includes a bearing component 1, a flipping component is provided on the bearing component 1, a transmission disk 21 is connected to the output end of the flipping component, a clamping mechanism for clamping castings is fixedly provided on the transmission disk 21, and a cleaning mechanism 101 is provided at the bottom of the clamping mechanism. The cleaning mechanism 101 includes a fixed frame 5, which is located at the bottom of the clamping mechanism. The fixed frame 5 is provided with an arc-shaped guide rail 51. The center of the guide rail 51 is coaxial with the flipping axis of the clamping mechanism. Multiple flow guiding units are slidably connected to the guide rail 51 and spaced apart along the extension direction of the guide rail 51. The flow guiding units can slowly return to their initial position after sliding. The clamping mechanism is provided with transmission components 8 on both sides along its flipping direction. When the clamping mechanism flips, the transmission components 8 that rotate with the clamping mechanism come into contact with the flow guiding unit located at one end of the guide rail 51 and push the flow guiding unit to slide along the guide rail 51, so that multiple flow guiding units move in sequence and gather on the side corresponding to the flipping direction of the clamping mechanism. When the transmission components 8 separate from the flow guiding units, the multiple flow guiding units slowly return to the spaced distribution state.

[0027] Specifically, when multiple flow guiding units are spaced apart along the guide rail 51, the central angle between the flow guiding units at both ends of the guide rail 51 is less than 180°. That is, in the initial state, the multiple flow guiding units are concentrated in the bottom side area of ​​the flip axis, rather than covering the entire circumference. This arrangement allows the flow guiding units to have sufficient movement space during the flipping process of the clamping mechanism, enabling the transmission component 8 to push the flow guiding units along the guide rail 51 to gather on the side corresponding to the flipping direction, and to return to the initial distribution state after the transmission component 8 disengages.

[0028] Example 1 In this embodiment, as Figure 1-3 As shown, the support assembly 1 includes a frame 11, a drive unit 12 is fixed to the top of the frame 11, and a lifting platform 14 that can move vertically is fixed to the output end of the bottom of the drive unit 12. A tilting assembly is fixed on the lifting platform 14.

[0029] Specifically, the drive unit 12 is preferably a self-driving telescopic rod-shaped drive member 41, which can be either an electric push rod or a hydraulic rod. A vertically extending transmission rod 13 is fixedly connected to the output end of the bottom of the drive unit 12, and the bottom end of the transmission rod 13 is fixedly connected to the lifting platform 14. During operation, the drive unit 12 drives the transmission rod 13 to reciprocate vertically, thereby causing the lifting platform 14 connected to the transmission rod 13 to rise and fall synchronously, thus achieving vertical position adjustment of the clamping mechanism mounted on the lifting platform 14.

[0030] Preferably, a guide rod 15 fixed to the frame 11 is provided on one side of the transmission rod 13. The guide rod 15 extends in the vertical direction, and the lifting platform 14 is slidably connected to the guide rod 15. The guide rod 15 restricts the movement direction of the lifting platform 14, so that the lifting platform 14 maintains stable vertical movement during the lifting process, reduces the offset or shaking during the lifting process, and improves the stability of the clamping mechanism position adjustment.

[0031] The tilting assembly includes a tilting cylinder 2, which is fixed on the lifting platform 14, and a transmission disc 21 is fixed on the output end of the tilting cylinder 2.

[0032] The clamping mechanism includes a mounting component 3 and a clamping component 4, with the clamping component 4 fixed to the transmission disk 21 via the mounting component 3.

[0033] Mounting assembly 3 includes a mounting base 31, which is fixedly mounted on the transmission disc 21. A mounting bracket 32 ​​is fixedly connected to the mounting base 31, and the two sides of the mounting bracket 32 ​​extend outward to form two symmetrically arranged mounting plates. The clamping assembly 4 includes two clamping parts arranged opposite to each other, and the two clamping parts are respectively disposed on two mounting plates; The mounting plate is provided with a pusher for constituting the transmission assembly 8. The pusher moves with the clamping assembly 4 and pushes the guide unit located at the corresponding side end of the guide rail 51 to slide along the guide rail 51.

[0034] Specifically, the clamping part includes a driving member 41 fixedly mounted on the mounting plate, and a clamping member 42 is fixedly connected to the output end of the driving member 41. The two driving members 41 respectively drive the corresponding clamping members 42 to move towards each other in the horizontal direction, thereby clamping and fixing the casting located between them through the two clamping members 42.

[0035] After one side of the casting is polished, the tilting cylinder 2 is activated, causing the transmission disk 21 to rotate, which in turn drives the clamping assembly 4 fixed on the transmission disk 21 to rotate synchronously. Since the casting is clamped between the two clamping components 42, the casting can be tilted synchronously so that the other side of the casting faces the polishing mechanism, thus realizing double-sided processing of the casting.

[0036] Furthermore, the driving member 41 is preferably a self-driving telescopic rod-shaped driving member 41, which can be any one of an electric push rod or a hydraulic rod. The driving member 41 is fixedly mounted on the mounting plate, and the moving rod connected to the output end of the driving member 41 passes through the mounting plate and extends between the two mounting plates to drive the clamping member 42 located between the two mounting plates to move.

[0037] Specifically, the clamping member 42 is preferably a plate-shaped structure adapted to the shape of the casting to be clamped, so as to increase the contact area between the clamping member 42 and the casting and improve the stability during the clamping process.

[0038] Furthermore, the mounting plate is also provided with a transmission component 8, which is used to drive the cleaning mechanism 101 to move during the flipping process of the clamping component 4, so as to realize the linkage between the flipping action of the clamping component 4 and the cleaning process.

[0039] Example 2 like Figures 7-9 As shown, the flow guiding unit includes a flow guiding shell 7 that communicates with an external air pump and an adjustment component 6 for adjusting the position of the flow guiding shell 7. The adjustment component 6 includes a slider 61 that is slidably disposed on the guide rail 51, and the flow guiding shell 7 is fixedly installed on the mounting block 62 on the slider 61. Two adjacent sliders 61 are connected by a reset member, and the sliders 61 located at both ends of the guide rail 51 are respectively provided with the driven part of the transmission assembly 8; A retarder is provided between the slider 61 and the guide rail 51. The retarder is used to limit the moving speed of the slider 61 on the guide rail 51, so that the slider 61 gradually returns to the initial position along the guide rail 51 from the moving position.

[0040] Furthermore, the guide shell 7 is fixedly installed on the mounting block 62 by the fixing rod 72, and the guide shell 7 is connected to an external air pump through the connecting pipe 71 to deliver airflow into the guide shell 7. The connecting pipe 71 is provided with a deformable and expandable flexible section on the side near the guide shell 7. The flexible section can expand, contract or bend as the guide shell 7 moves along the guide rail 51, thereby compensating for changes in the length and posture of the connecting pipe 71 when the guide shell 7 moves, and avoiding tension, bending or affecting the airflow delivery of the connecting pipe 71 due to the adjustment of the position of the guide shell 7.

[0041] By setting flexible sections, each guide shell 7 can maintain a stable connection with the external air pump while moving along the arc-shaped guide rail 51 and changing the distance between them. This makes the position adjustment of the guide shell 7 independent of the air supply process, improving the reliability of the guide unit during movement.

[0042] Furthermore, to ensure that the slider 61 can slowly return to its initial position after moving on the guide rail 51, a retarder is provided between the slider 61 and the guide rail 51. Specifically, the retarder can be implemented in the following way: In the first embodiment, the deceleration element includes an elastic friction layer disposed between the contact surfaces of the slider 61 and the guide rail 51. The elastic friction layer can be made of rubber, polyurethane, or other elastic and wear-resistant materials, and abuts against the surface of the guide rail 51. By increasing the contact friction between the slider 61 and the guide rail 51 through the elastic friction layer, the slider 61 is somewhat hindered when moving along the guide rail 51 under the action of the reset element, thereby reducing the reset speed of the slider 61 and allowing it to gradually return from the moved position to the initial position.

[0043] In the second embodiment, the deceleration component includes an elastic clamping part disposed on the slider 61. The elastic clamping part can press against the surface of the guide rail 51 under its own elastic action and apply a certain clamping force to the guide rail 51 to increase the frictional resistance during the movement of the slider 61. By adjusting the elastic force of the elastic clamping part, the resistance between the slider 61 and the guide rail 51 can be changed, thereby adjusting the speed of the slider 61 when moving along the guide rail 51 and when resetting.

[0044] Furthermore, the two embodiments described above can also be used in combination. That is, while an elastic friction layer is provided on the contact surface between the slider 61 and the guide rail 51, an elastic pressing part is provided on the slider 61. The elastic friction layer provides basic frictional resistance, and the elastic pressing part further enhances the contact pressure between the slider 61 and the guide rail 51, so as to improve the slowing effect during the movement of the slider 61.

[0045] The aforementioned elastic friction layer, elastic clamping part, and structure that uses friction to achieve slow movement of sliding parts are all common slowing and damping adjustment structures in the mechanical field. Those skilled in the art can select the appropriate structural form to implement them according to actual usage requirements, and will not be elaborated here.

[0046] Furthermore, to ensure the long-term stable operation of the retarder, a telescopic sleeve can be fitted onto the outer side of the corresponding guide rail 51 between two adjacent sliders 61. The two ends of the telescopic sleeve are fixedly connected to the corresponding two sliders 61. By setting the telescopic sleeve, the slider 61 can extend and retract synchronously with the slider 61 as it moves along the guide rail 51, thereby shielding the sliding connection area between the slider 61 and the guide rail 51. This prevents dust, debris, and other impurities generated during the casting grinding process from entering the mating gap between the guide rail 51 and the slider 61, affecting the normal movement of the slider 61 and the retarder's retardation effect.

[0047] Preferably, dust baffles can be installed at other transmission locations susceptible to dust to shield and protect transmission structures such as gears and racks, preventing grinding debris from adhering to the gear meshing area, reducing transmission accuracy, or causing transmission jamming, and improving the reliability of the adjustment unit and transmission assembly 8 during operation. Furthermore, both the telescopic sleeve and the dust baffle are commonly used dust protection structures in mechanical structures. Those skilled in the art can select the appropriate structural form based on the actual usage environment and protection requirements; their specific structures and installation methods will not be elaborated here.

[0048] Specifically, the reset component includes a guide telescopic rod 63 with an arc-shaped structure. A spring is sleeved on the outer surface of the guide telescopic rod 63, and the two ends of the spring are respectively fixed to the two ends of the guide telescopic rod 63. The two ends of the guide telescopic rod 63 are respectively connected to two adjacent sliders 61. When the transmission assembly 8 pushes the slider 61 to move along the guide rail 51, the guide telescopic rod 63 extends and retracts synchronously with the slider 61, causing the spring to undergo elastic deformation. When the transmission assembly 8 disengages from the slider 61, the spring releases its elastic potential energy and drives the adjacent sliders 61 to gradually return to their initial positions through the guide telescopic rod 63, so that the multiple flow guiding units slowly return from a converged state to a spaced distribution state.

[0049] Specifically, in order to prevent the sliders 61 located on both sides of the guide rail 51 from sliding out of the guide rail 51, limiting plates are provided on both sides of the guide rail 51 to block the sliders 61.

[0050] During operation, an external air pump delivers airflow to the guide shells 7 in each guide unit, enabling the guide shells 7 to clean the surface of the casting. In the initial state, multiple guide units are spaced apart along the arc-shaped guide rails 51, allowing each guide shell 7 to form a large guide coverage area, so as to uniformly clean the corresponding area of ​​the casting.

[0051] When the casting completes surface machining on one side and is flipped by the flipping assembly, the clamping mechanism rotates synchronously with the transmission disk 21. The transmission assembly 8, mounted on the clamping mechanism, moves accordingly and contacts the driven part located at the end of the guide rail 51. As the clamping mechanism continues to flip, the transmission assembly 8 pushes the corresponding slider 61 to move along the guide rail 51. Since adjacent sliders 61 are connected by a reset member, the pushed slider 61 causes adjacent sliders 61 to move sequentially, causing multiple flow guiding units to gradually converge along the guide rail 51 towards the side corresponding to the flipping direction of the clamping mechanism. This gradually reduces the spacing between the flow guiding shells 7, increasing the flow guiding density in the local area during the flipping process.

[0052] During the movement of the flow guiding unit, the guide telescopic rod 63 in the reset component extends and retracts as the distance between adjacent sliders 61 changes, while the spring undergoes elastic deformation and stores elastic potential energy. After the clamping mechanism completes its flip, the transmission component 8 disengages from the driven part at the end of the guide rail 51, and the sliders 61 lose their external pushing force. At this time, the spring releases its elastic potential energy and, through the guide telescopic rod 63, drives multiple sliders 61 to gradually return to their initial distribution positions, causing the flow guiding unit to gradually return from a converged state to a spaced distribution state.

[0053] During the reset process described above, the slowing component placed between the slider 61 and the guide rail 51 hinders the movement of the slider 61, preventing it from returning quickly under the spring's restoring force. Instead, the slider 61 moves slowly along the guide rail 51, thus prolonging the process of the flow guiding unit returning from a converged state to a dispersed state. This gradually expands the flow guiding area and enables continuous cleaning of the surface of the casting after it has been flipped.

[0054] With the above structure, the casting flipping action is used as the driving force for adjusting the state of the flow guiding unit. The flow guiding unit can automatically switch between a dispersed state and a converged state according to different cleaning needs during the flipping process. This improves the local cleaning intensity in the initial stage of flipping and gradually expands the cleaning range after flipping is completed, realizing continuous and dynamic dust removal and cleaning during the casting flipping process.

[0055] Example 3 like Figure 6 As shown, the transmission assembly 8 includes a pushing part and a driven part. The pushing part includes a drive plate 81 fixedly mounted on the clamping assembly 4. The drive plate 81 can rotate synchronously with the clamping assembly 4. The driven part includes a driven plate 83 that overlaps with the drive plate 81 during rotation. The driven plate 83 is rotatably connected to one end of the connecting rod 82, and the connecting rod 82 is fixedly mounted on the corresponding slider 61. A first coil spring is provided at the rotatable connection between the driven plate 83 and the connecting rod 82.

[0056] Specifically, the spring force coefficient of the first coil spring is greater than the elastic coefficient of the spring.

[0057] Furthermore, the drive plate 81 is fixedly mounted on the mounting plate and moves synchronously with it. To ensure that the clamping assembly 4 can drive the flow guiding unit to move along the guide rail 51 in different flipping directions, so that the flow guiding unit can converge to the corresponding side according to the flipping direction of the casting, drive plates 81 are fixedly mounted on the mounting plate at the mounting position corresponding to the drive plate 81, and on both sides along the casting rotation direction. When the clamping assembly 4 flips in any direction, the drive plate 81 on the corresponding side can contact the driven plate 83 and push the slider 61 to move, thereby realizing the state adjustment of the flow guiding unit during the bidirectional flipping of the casting.

[0058] When the drive plate 81 rotates with the clamping assembly 4 to a position where it contacts the driven plate 83 on one side, the drive plate 81 overlaps with the driven plate 83 and pushes the driven plate 83 to move synchronously. Since the elastic coefficient of the first coil spring is greater than that of the spring in the reset member, during the initial pushing process of the drive plate 81, the first coil spring can generate a large rotational resistance on the driven plate 83, keeping the driven plate 83 fixed relative to the connecting rod 82. At this time, the force applied by the drive plate 81 is transmitted sequentially to the corresponding slider 61 through the driven plate 83 and the connecting rod 82.

[0059] Under the aforementioned force, the slider 61 located at the end of the guide rail 51 moves along the guide rail 51, and drives the other sliders 61 to move synchronously through the reset member connected between adjacent sliders 61. This causes the guide shells 7 set on each slider 61 to gradually converge along the guide rail 51 towards the side corresponding to the flipping direction of the clamping assembly 4. During the movement of the slider 61, the guide telescopic rods 63 connecting adjacent sliders 61 gradually shorten, and at the same time, the springs sleeved on the outside of the guide telescopic rods 63 undergo compression deformation and store elastic potential energy until each guide telescopic rod 63 reaches the preset contraction limit. At this time, each slider 61 moves to the maximum convergence position and stops moving.

[0060] After the slider 61 stops moving, as the clamping assembly 4 continues to rotate, the drive plate 81 continues to push the driven plate 83 to move. Since the slider 61 can no longer move along the guide rail 51, the force applied by the drive plate 81 to the driven plate 83 overcomes the elastic resistance of the first coil spring, causing the driven plate 83 to rotate relative to the connecting rod 82 until the drive plate 81 and the driven plate 83 separate from each other.

[0061] When the drive plate 81 disengages from the driven plate 83, the slider 61 loses its driving force. Under the action of the elastic potential energy released by the spring in the reset component, each slider 61 moves along the guide rail 51 towards its initial position, causing the multiple flow guiding units in the converged state to gradually return to an evenly spaced distribution state. At the same time, since a retarder is provided between the slider 61 and the guide rail 51, the reset speed of the slider 61 can be reduced, allowing the flow guiding units to smoothly transition from the converged state to the dispersed state.

[0062] Example 4 This embodiment is derived based on Embodiment 2, such as... Figures 9-11 As shown, in one preferred embodiment of this application, it also includes an adjustment part. When the guide shell 7 moves along the guide rail 51 with the slider 61 under the action of the transmission component 8, the adjustment part drives the guide shell 7 to rotate relative to the mounting block 62, so that the air outlet provided on the vertical guide shell 7 deflects toward the casting side. The flow guide shell 7 is rotatably connected to the mounting block 62 on the surface of the slider 61, and the flow guide shell 7 can rotate back to its initial position after rotation.

[0063] Specifically, a second coil spring is provided at the rotatable connection between the air guide shell 7 and the mounting block 62. In the initial state, under the elastic restoring force of the second coil spring, the air guide shell 7 remains vertically positioned, causing the air outlet on the air guide shell 7 to be arranged in a vertical direction. When the adjusting part acts on the air guide shell 7 and drives it to rotate relative to the mounting block 62, the second coil spring undergoes elastic deformation with the rotation of the air guide shell 7 and stores elastic potential energy to push the air guide shell 7 back to its initial position.

[0064] When the guide shell 7 is disengaged from the adjustment part, the second coil spring releases the stored elastic potential energy and drives the guide shell 7 to rotate in the opposite direction relative to the mounting block 62, so that the guide shell 7 returns to the vertical setting state, thereby ensuring that the guide shell 7 maintains a uniform initial posture when it is not affected by the adjustment part, which facilitates the angle adjustment again during the next flipping process.

[0065] The adjustment unit includes a guide rack 52 that is fixed in position relative to the clamping assembly 4 in the rotating state. The guide rack 52 is arranged in an arc shape and is coaxial with the rotation trajectory of the clamping assembly 4 when it is flipped. The adjustment unit also includes a driven gear 67 that is fixedly connected to the guide shell 7 on the same axis. A transmission gear 68 that meshes with the driven gear 67 is provided on one side of the driven gear 67. The transmission gear 68 is also meshed with the guide rack 52. Both the driven gear 67 and the transmission gear 68 are rotatably mounted on the connecting frame 69 and can rotate relative to the connecting frame 69. The connecting frame 69 is fixedly connected to the corresponding slider 61 by the mounting rod 691.

[0066] Specifically, when the slider 61 moves under the action of the transmission assembly 8, or moves along the guide rail 51 under the pushing action of an adjacent slider 61, the slider 61 drives the connecting frame 69 to move synchronously via the mounting rod 691, causing the transmission gear 68 and the driven gear 67 mounted on the connecting frame 69 to move together with the slider 61. Since the guide rail 51 and the guide rack 52 are both coaxially arranged with the rotation center of the clamping assembly 4 when it flips, the transmission gear 68 moves synchronously along the guide rack 52 during the movement of the slider 61 along the guide rail 51.

[0067] Since the transmission gear 68 meshes with the fixedly mounted guide rack 52, as the transmission gear 68 moves along the guide rack 52, the guide rack 52 generates a driving force on the transmission gear 68, causing the transmission gear 68 to rotate around its own axis. The rotating transmission gear 68 further drives the driven gear 67, which meshes with it, to rotate synchronously. Since the driven gear 67 is coaxially and fixedly connected to the guide shell 7, the rotation of the driven gear 67 causes the guide shell 7 to rotate relative to the mounting block 62.

[0068] With the above structure, as the slider 61 moves and converges along the guide rail 51 with the flow guiding unit, the meshing action between the guide rack 52 and the transmission gear 68 converts the linear movement of the slider 61 into the angle adjustment of the flow guiding shell 7, so that the air outlet of the flow guiding shell 7 gradually deflects from the initial vertical state toward the surface of the casting that is close during the flipping process, thereby enabling the airflow jet direction to be adaptively adjusted with the flipping process of the casting.

[0069] When the slider 61 stops moving or reverses to reset, the transmission gear 68 moves in the opposite direction along the guide rack 52, and drives the guide shell 7 to restore the corresponding angle through gear transmission, so that the guide shell 7 can achieve angle adjustment again in the next flip process.

[0070] During the above process, the second coil spring deforms.

[0071] Preferably, the diameter of the drive gear 68 is smaller than the diameter of the driven gear 67. This arrangement reduces the transmission ratio between the drive gear 68 and the driven gear 67, ensuring that when the drive gear 68 moves and rotates along the guide rack 52, the driven gear 67 only rotates at a small angle. This prevents excessive deflection of the guide shell 7 during the convergence of multiple guide units, ensuring that the guide shell 7 maintains a suitable tilt angle to improve airflow performance.

[0072] Furthermore, to avoid the driven gear 67 being too large and affecting the convergence process between adjacent guide units, the width of the guide rack 52 can be appropriately increased to give the guide rack 52 more installation space, and the driven gears 67 in the two adjacent adjustment parts can be staggered along the width direction of the guide rail 51 to avoid mutual interference between adjacent driven gears 67 during the convergence process of the guide units.

[0073] Specifically, the guide rail 51 is fixed on the mounting bracket 5.

[0074] Furthermore, two symmetrically arranged guide sleeves 64 are fixed on the slider 61, and the two guide sleeves 64 are respectively sleeved on both sides of the transmission shaft 65, and the transmission shaft 65 is fixedly connected to the mounting block 62; one end of the transmission shaft 65 is connected to the driven gear 67 through the synchronous shaft 66.

[0075] Example 5 This embodiment is derived based on Embodiments 1 to 4, such as... Figure 4 and Figure 5 As shown, multiple cleaning mechanisms 101 can be configured, and these mechanisms are distributed sequentially and at intervals along the axial direction of the flipping and rotating trajectory of the clamping assembly 4, avoiding the movement range of the clamping assembly 4 and the casting during the flipping and rotating process. This prevents the cleaning mechanisms 101 from interfering with the flipping action of the casting. By setting multiple cleaning mechanisms 101, multiple cleaning areas can be formed along the axial direction of the casting to expand the airflow coverage and improve the cleaning effect on dust and processing residues on the surface of the casting.

[0076] Based on the above embodiments, it should be further noted that the dimensional ratios of the flow guide shell 7 and other components shown in the accompanying drawings are for illustrative purposes only and do not constitute a limitation on the structural dimensional relationships of this application. In practical applications, the dimensional ratios of the flow guide shell 7 and other components can be adaptively adjusted according to the size specifications of the casting, the processing area, and cleaning requirements to meet the usage requirements under different working conditions.

[0077] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A workpiece flipping mechanism for grinding castings, comprising a bearing assembly (1), wherein a flipping assembly is provided on the bearing assembly (1), a transmission disk (21) is connected to the output end of the flipping assembly, a clamping mechanism for clamping the casting is fixedly provided on the transmission disk (21), and a cleaning mechanism (101) is provided at the bottom of the clamping mechanism, characterized in that: The cleaning mechanism (101) includes a fixed frame (5), which is located at the bottom of the clamping mechanism. The fixed frame (5) is provided with a guide rail (51) extending in an arc shape. Multiple flow guiding units are slidably connected on the guide rail (51) and distributed at intervals along the extension direction of the guide rail (51). The flow guiding units can slowly return to their initial positions after sliding. The clamping mechanism is provided with transmission components (8) on both sides along its flipping direction. When the clamping mechanism flips, the transmission components (8) that rotate with the clamping mechanism come into contact with the flow guiding unit located at one end of the guide rail (51) and push the flow guiding unit to slide along the guide rail (51), so that multiple flow guiding units move in sequence and gather on the side corresponding to the flipping direction of the clamping mechanism.

2. The workpiece flipping mechanism for grinding castings as described in claim 1, characterized in that: The bearing assembly (1) includes a frame (11), a drive unit (12) is fixed on the top of the frame (11), and a lifting platform (14) that can move vertically is fixed on the output end of the bottom of the drive unit (12). A flipping assembly is fixed on the lifting platform (14).

3. The workpiece flipping mechanism for grinding castings as described in claim 1, characterized in that: The flipping assembly includes a flipping cylinder (2), which is fixed on the lifting platform (14), and a transmission disc (21) is fixed on the output end of the flipping cylinder (2).

4. The workpiece flipping mechanism for grinding castings as described in claim 3, characterized in that: The clamping mechanism includes a mounting component (3) and a clamping component (4), wherein the clamping component (4) is fixed to the transmission disk (21) by the mounting component (3).

5. The workpiece flipping mechanism for grinding castings as described in claim 4, characterized in that: The mounting assembly (3) includes a fixed base (31), which is fixedly mounted on the transmission disc (21). A mounting bracket (32) is fixedly connected to the fixed base (31), and the two sides of the mounting bracket (32) extend outward to form two symmetrically arranged mounting plates. The clamping assembly (4) includes two clamping parts arranged opposite to each other, and the two clamping parts are respectively disposed on two mounting plates; The mounting plate is provided with a pusher for constituting the transmission assembly (8). The pusher moves with the clamping assembly (4) and pushes the guide unit located at the corresponding side end of the guide rail (51) to slide along the guide rail (51).

6. The workpiece flipping mechanism for grinding castings as described in claim 5, characterized in that: The clamping part includes a driving member (41) fixedly mounted on the mounting plate, and a clamping member (42) is fixedly connected to the output end of the driving member (41); the two driving members (41) respectively drive the corresponding clamping members (42) to move towards each other in the horizontal direction, so as to clamp and fix the casting located between them through the two clamping members (42).

7. The workpiece flipping mechanism for grinding castings as described in claim 1, characterized in that: The flow guiding unit includes a flow guiding shell (7) connected to an external air pump and an adjustment component (6) for adjusting the position of the flow guiding shell (7). The adjustment component (6) includes a slider (61) slidably disposed on the guide rail (51). The flow guiding shell (7) is fixedly installed on the mounting block (62) on the slider (61). The two adjacent sliders (61) are connected by a reset member, and the sliders (61) located at both ends of the guide rail (51) are respectively provided with the driven part of the transmission assembly (8); A slowing element is provided between the slider (61) and the guide rail (51).

8. The workpiece flipping mechanism for grinding castings as described in claim 5, characterized in that: The transmission assembly (8) includes a pushing part and a driven part. The pushing part includes a drive plate (81) fixedly mounted on the clamping assembly (4). The drive plate (81) can rotate synchronously with the clamping assembly (4). The driven part includes a driven plate (83) that overlaps with the drive plate (81) during rotation. The driven plate (83) is rotatably connected to one end of the connecting rod (82), and the connecting rod (82) is fixedly mounted on the corresponding slider (61). A first coil spring is provided at the rotatable connection between the driven plate (83) and the connecting rod (82).

9. The workpiece flipping mechanism for grinding castings as described in claim 7, characterized in that: It also includes an adjustment unit. When the flow guide shell (7) moves along the guide rail (51) with the slider (61) under the action of the transmission assembly (8), the adjustment unit drives the flow guide shell (7) to rotate relative to the mounting block (62), so that the air outlet set on the vertical flow guide shell (7) deflects toward the casting side. The flow guide shell (7) is rotatably connected to the mounting block (62) on the surface of the slider (61), and the flow guide shell (7) can rotate back to its initial position after rotation.

10. The workpiece flipping mechanism for grinding castings as described in claim 9, characterized in that: The adjustment unit includes a guide rack (52) whose position is fixed relative to the clamping assembly (4) in the rotating state. The guide rack (52) is arranged in an arc shape and is coaxial with the rotation trajectory of the clamping assembly (4) when it is flipped. The adjustment unit also includes a driven gear (67) that is coaxially fixedly connected to the guide shell (7). A transmission gear (68) is provided on one side of the driven gear (67) for meshing and transmission. The transmission gear (68) is also meshed and connected to the guide rack (52). Both the driven gear (67) and the transmission gear (68) are rotatably mounted on the connecting frame (69) and can rotate relative to the connecting frame (69). The connecting frame (69) is fixedly connected to the corresponding slider (61) by the mounting rod (691).

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