Radial flow type turbine correcting and cleaning device

Abstract

The invention discloses a radial flow type turbine correcting and cleaning device which aims at solving the problems that correcting and cleaning procedures are separated, efficiency is low, cleaning is not accurate, and equipment adaptability is poor. The multi-station rotary table is at least provided with a back disc correcting station and a cleaning station, and each station is provided with a rotating seat structure; the back disc correction station is provided with a correction chuck formed by splicing two semicircular correction half pieces, a correction sleeve with an avoiding opening and a roll-out platform, and accurate correction of the turbine disc can be achieved without circulation interference. The cleaning station is provided with an intermittent driving mechanism, the intermittent driving mechanism comprises a stirring part and a maintaining part, and through meshing fit of an incomplete gear and a missing gear and limiting of a lever arm driven by a cam, turbine fixed-angle rotation is achieved, and gaps between blades face a cleaning spray head one by one; and the shifting part and the retaining part are adjustable in position through the adjusting arm, so as to adapt to turbines of different specifications. And correction and cleaning integrated operation is achieved, the machining efficiency and precision are improved, universality is high, and the device is suitable for production of various radial flow type turbines.

Description

Technical Field

[0001] This invention relates to the field of turbine processing technology, and specifically to a radial flow turbine straightening and cleaning device. Background Technology

[0002] In the field of radial turbine machining and remanufacturing, the flatness correction of the turbine disk and the residual cleaning of the blade clearance are crucial steps to ensure product performance. However, existing machining technologies and equipment still have many problems that urgently need to be solved. Regarding process integration, in traditional machining methods, the correction and cleaning processes are independent, requiring the workpiece to be transferred between different specialized equipment and clamped and positioned multiple times. This process not only prolongs the production cycle and reduces machining efficiency, but also easily leads to cumulative errors due to repeated positioning, causing the flatness of the turbine disk, blade clearance, and other key dimensions to deviate from design requirements, affecting the overall assembly accuracy and aerodynamic performance of the turbine. In the blade clearance cleaning stage, due to the narrow spacing and complex profile of turbine blades, traditional cleaning methods often rely on manual hand tools, making it difficult to achieve precise alignment of each blade clearance. This easily creates cleaning dead zones, resulting in the incomplete removal of impurities such as shell sand, adhesive residue, slag, and oxide scale. At the same time, the manual operating force is difficult to control precisely, easily causing scratches and damage to the aerodynamic profile of the blades, further affecting the turbine's aerodynamic efficiency and operational stability. Regarding turbine disk straightening equipment, existing straightening chucks are mostly one-piece structures. After the workpiece is straightened, these one-piece chucks are prone to motion interference with the station transfer mechanism, requiring manual disassembly of the tooling to transfer the workpiece to the station, severely restricting the continuity and automation level of the process. In terms of equipment adaptability, the existing intermittent drive mechanism has a fixed structure and cannot be flexibly adjusted according to the blade spacing and turbine disk diameter of different turbine specifications. This results in a single machine being able to adapt to only one type of turbine workpiece, increasing the equipment investment cost and changeover time for producing multiple turbine models. Furthermore, during traditional straightening processes, the axial degree of freedom of the turbine workpiece is limited, making it impossible to achieve micro-deformation compensation under straightening pressure. This easily leads to over-straightening of the turbine disk or localized stress concentration, affecting its structural strength and service life. The root cause of these defects lies in the lack of systematic consideration of process integration, structural adaptability, and precision control in existing equipment. Over-reliance on single-function design and manual operation ultimately results in poor consistency in turbine machining product quality and low production efficiency, making it difficult to meet the mass production needs of high-precision turbine parts in aerospace, automotive turbocharger, and other fields.

[0003] For the reasons mentioned above, it is necessary to propose a radial turbine correction and cleaning device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the prior art and provide a radial turbine correction and cleaning device.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A radial turbine straightening and cleaning device includes a rotating seat structure for fixing the turbine workpiece, the rotating seat structure allowing the workpiece to rotate freely around the turbine shaft; It also includes an intermittent drive mechanism, which includes a toggle part and a retaining part. The toggle part is coupled with the workpiece blade and intermittently toggle the blade to make the turbine workpiece rotate at a fixed angle. The retaining part cooperates with a specific arc-shaped edge and restricts the rotation of the workpiece. The intermittent drive mechanism alternately cooperates with the toggle part and the retaining part with the worm gear workpiece according to a predetermined sequence, and controls the gaps between the worm gear blades to face the cleaning nozzle one by one.

[0006] Furthermore, the holding part includes a drive cam, and the actuating part includes an actuating gear structure. The drive cam and the actuating gear structure are coaxially stacked and rotatably disposed on the secondary shaft, and the drive cam and the actuating gear structure rotate synchronously. The drive cam is aligned with the side of the arc-shaped edge, and the actuating gear structure is aligned with the base of the blade.

[0007] Furthermore, the intermittent drive mechanism also includes a drive gear structure coupled with a toggle gear structure. The drive gear structure is an incomplete gear structure, which includes a drive tooth portion, an arc portion, and an axial lever. The two ends of the drive tooth portion and the arc portion are connected to form an incomplete tooth structure. The axial lever is vertically fixed on the surface of the drive gear structure and is located at the connection between the drive tooth portion and the arc portion.

[0008] Furthermore, the actuating gear structure is a missing gear structure, comprising a driven tooth, a notch, and a radial lever. The notch is a notch provided on the driven tooth, which mates with the arc portion of the driving gear structure. The radial lever is disposed on the planar end face of the actuating gear structure and is arranged radially along the actuating gear structure, with its position corresponding to the notch. The driving tooth meshes with the driven tooth, and the radial lever extends radially out of the outer circle of the driven gear and into the inner side of the outer circle of the driving gear structure, extending at least to the virtual circular trajectory formed by the axial lever movement trajectory.

[0009] Furthermore, the retaining part also includes a lever arm and an elastic element. The second end of the lever arm is coupled to a drive cam and the second end is coupled to an arc-shaped edge. The elastic element is configured to make the second segment always tend to move closer to the arc-shaped edge. The second end contacts the arc-shaped edge and restricts the rotation of the workpiece.

[0010] Furthermore, the actuating part and the retaining part are configured as an adjustable structure surrounding the drive gear structure. An adjusting arm is provided rotating around the drive gear structure. The end of the adjusting arm is provided with the actuating part and the retaining part, so that the actuating part and the retaining part can be adjusted in position around the drive gear structure and the distance between the actuating part, the retaining part and the axis of the rotating seat structure can be changed.

[0011] Furthermore, it also includes a multi-station rotary table, which is provided with at least a back plate straightening station and a cleaning station. The multi-station rotary table controls the rotation and scheduling of workpieces between each station, and the multi-station rotary table is provided with a rotating seat structure corresponding to each station.

[0012] Furthermore, the back plate straightening station includes a straightening chuck and a straightening sleeve; the straightening chuck is divided into two semi-circular straightening halves that are spliced ​​together, and the straightening halves match the shape and curvature of the back of the turbine disk; the straightening sleeve is cylindrical, with an opening at one end facing the workpiece, and an annular flange extending inward from the opening end, and the annular flange having a clearance opening that mates with the blade vertical portion at the base of the workpiece blade.

[0013] Furthermore, the cleaning station is equipped with a turnout platform and a pressure cylinder. The straightening half is set on the turnout platform, which controls the movement trajectory of the straightening half as it turns into or out of the multi-station rotary table. When turning in, the two straightening half pieces are joined together as a whole and placed under the turbine disk of the workpiece. When turning out, the two straightening half pieces move out of the multi-station rotary table without interfering with each other. A straightening sleeve is set at the lower end of the pressure cylinder, and the pressure cylinder drives the straightening sleeve to press down and cooperate with the straightening chuck to perform the straightening operation on the turbine disk.

[0014] Furthermore, the rotating seat structure is configured to have an axial elastic extension degree of freedom.

[0015] The advantages and beneficial effects of this invention are as follows: 1. The intermittent drive mechanism precisely controls the turbine's rotation at a fixed angle, ensuring that each blade gap is aligned with the cleaning nozzle, eliminating cleaning dead zones. This intermittent drive mechanism, through the precise meshing of the drive gear structure and the actuating gear structure, converts power transmission into the turbine's fixed-angle step-by-step rotation. Combined with the retaining part composed of the drive cam and lever arm, it achieves an orderly cycle of "rotation-positioning-cleaning." The rotation angle error can be controlled within a very small range, ensuring that each blade gap is precisely aligned with the cleaning nozzle. Compared to traditional manual adjustments or simple drive structures, positioning accuracy and operational safety are significantly improved, making it particularly suitable for radial turbine cleaning needs with narrow blade spacing and complex shapes.

[0016] 2. The split-type straightening chuck works in conjunction with the turnout platform to avoid interference during workstation transitions and ensure process continuity. The straightening chuck adopts a design of two semi-circular straightening halves, which not only ensures a perfect fit with the shape and curvature of the turbine disk back, providing uniform support to improve the straightening effect, but also allows for flexible input and output movements via the turnout platform. After the workpiece has been straightened, the two straightening halves can be moved out of the multi-station rotary table's movement trajectory simultaneously, completely avoiding the interference problem between the integrated chuck and the rotary table. Automatic workpiece transfer can be achieved without manual disassembly of tooling, significantly reducing process connection time, making the straightening and cleaning processes seamlessly connected, and significantly improving the automated continuous operation capability of the production line.

[0017] 3. High degree of automation, reduced manual intervention, and improved product quality consistency. The device achieves automatic workpiece flow through a multi-station rotary table, automatic alignment of blade gaps through an intermittent drive mechanism, and automatic correction through a pressure cylinder-driven straightening sleeve. The entire process eliminates the need for manual adjustment of workpiece position, control of straightening force, or cleaning angle, significantly reducing labor intensity and skill requirements, and avoiding individual differences caused by manual operation. Stable mechanical transmission and timing control ensure consistent straightening accuracy and cleaning effect for each batch and each workpiece, effectively reducing product defect rate and providing a reliable guarantee for the mass production of high-precision radial flow turbines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a radial flow turbine correction and cleaning device according to the present invention; Figure 2 This is a schematic diagram of the back plate correction station in this invention; Figure 3 This is a schematic diagram of the structure of the rotating platform of the back plate correction station in this invention when it is open; Figure 4 This is a three-dimensional exploded view of the cleaning station in this invention; In the diagram: 1. Rotary seat structure; 2. Actuating part; 3. Holding part; 4. Drive cam; 5. Actuating gear structure; 6. Countershaft; 7. Blade base; 8. Drive gear structure; 9. Drive gear; 10. Arc part; 11. Axial lever; 12. Driven gear; 13. Notch part; 14. Radial lever; 15. Lever arm; 16. Elastic element; 17. Adjusting arm; 18. Back plate straightening station; 19. Cleaning station; 20. Multi-station rotary table; 21. Straightening chuck; 22. Straightening sleeve; 23. Straightening half-blade; 24. Annular flange; 25. Clearance opening; 26. Blade vertical part; 27. Rotation platform; 28. Turbine disk; 29. ​​Expanding mandrel; 30. Double-bar hinge seat; 31. Second end; 32. Second end. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described below with reference to examples. These examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] A radial turbine correction and cleaning device, such as Figure 1-4 As shown, it includes multiple processing stations, which are coordinated by a multi-station rotary table 20. This embodiment schematically sets two processing stations, but other processing steps can be added as needed in actual use. This embodiment uses two processing steps as an example, specifically including a cleaning station 19 and a backplate straightening station 18. Processing stations are set at both ends of the multi-station rotary table, and rotary seat structures 1 are set at both ends of the multi-station rotary table. The turbine workpiece can be fixed on both rotary seat structures 1. When the multi-station rotary table rotates... The workpiece can be moved between two stations. In actual use, the back plate straightening station 18 can also be used as a loading and unloading station. The workpiece to be processed is changed at this station. The workpiece to be processed is first placed on the back plate straightening station 18 and fixed by the rotary seat structure 1. Specifically, the rotary seat structure 1 can be an expansion mandrel 29 that can be inserted into the internal shaft of the turbine workpiece. When the workpiece is fitted onto the expansion mandrel 29, the expansion mandrel 29 expands to fix the workpiece on the rotary seat structure 1. The rotary seat structure 1 is rotatably set on a multi-station rotary table, so the workpiece can rotate.

[0021] The structure of the turbine workpiece processed in this device is as follows: Figure 2 , 3 As shown, it includes a turbine disk 28, a turbine shaft, and blades. The turbine disk 28 has a worm gear shaft vertically arranged at its center. The space formed between the turbine disk 28 and the turbine shaft is used to arrange curved blades around the turbine shaft. The outer edge of the base of the blade in this workpiece is provided with a blade vertical part 26. The outer contour of the blade vertical part 26 is a vertical straight line, and its radius is larger than the outer diameter of the upper edge of the blade, so that the upper part of the blade can pass through the opening of the straightening sleeve 22. The blade vertical part 26 can be inserted into the clearance opening 25 of the annular flange 24 described below, so that the circumferential edge of the worm gear disk can be locked on the annular flange 24.

[0022] After the workpiece is fixed to the back plate straightening station 18, the turbine disk 28 of the turbine workpiece is leveled and straightened by the straightening chuck 21 and the straightening sleeve 22. The shape and curvature of the back of the straightening chuck 21 match the back of the turbine disk 28. After the turbine disk 28 of the workpiece is placed on the straightening chuck 21 that fits its shape, the warping and bending of the turbine disk 28 are corrected by pressing down the straightening sleeve 22. A pressure cylinder is installed at the cleaning station 19, facing the workpiece. A straightening sleeve 22 is installed at the lower end of the pressure cylinder. The straightening sleeve 22 is cylindrical, with an opening at the end facing the workpiece. An annular flange 24 extends inward from this opening, and the annular flange 24 has a clearance opening 25 that mates with the blade vertical portion 26 of the workpiece blade base 7. The pressure cylinder drives the straightening sleeve 22 to press down, engaging the straightening chuck 21 to straighten the turbine disk 28. During the downward movement of the straightening sleeve 22, the opening of the sleeve faces the workpiece, and the clearance opening 25 aligns with the blade vertical portion 26. Further downward pressure causes the annular flange 24 to press against the worm gear disk of the workpiece. As downward pressure continues, the warped and deformed workpiece is pressed against the straightening chuck 21, thereby correcting the deformation of the turbine disk 28.

[0023] Furthermore, in this embodiment, to coordinate with the rotation of the rotary platform, the straightening chuck 21 is divided into two semi-circular, relatively joined straightening halves 23. The straightening halves 23 match the shape and curvature of the back of the turbine disk 28. Furthermore, the cleaning station 19 is equipped with a turning-out platform 27, on which the straightening halves 23 are positioned. The turning-out platform 27 controls the movement trajectory of the straightening halves 23 as they enter or exit the multi-station rotary table 20. During entry, the two straightening halves 23 are joined together and placed under the workpiece turbine disk 28. During exit, the two straightening halves 23 move out of the multi-station rotary table 20 without interfering with each other. Figure 2 , 3 As shown, when the processing station needs to be changed, the complete one-piece straightening chuck 21 will interfere with the rotation of the rotary platform. Therefore, in this embodiment, the straightening chuck 21 is divided into a two-part structure design, namely two straightening halves 23. The two straightening halves 23 can be spliced ​​together to form a complete straightening chuck 21. After splicing, it can support the underside of the workpiece, thereby facilitating the straightening of the workpiece turbine disk 28. After the straightening is completed, the two straightening halves 23 are controlled to open relative to each other by the turnout platform 27, so that they can be turned out of the rotation range of the rotary platform to avoid restricting the rotation of the rotary platform. The turnout platform 27 can also provide support force for the turbine workpiece during straightening. Specifically, a fixed double-bar hinge seat 30 is provided on the outside of the back plate straightening station 18. The ends of the two turnout platforms 27 are respectively hinged to a hinge rod. It can be understood that a drive mechanism that simultaneously drives the two turnout platforms 27 to close or open can also be added for automatic control.

[0024] Furthermore, the rotary seat structure 1 is configured to have an axial elastic telescoping degree of freedom. As can be seen from the foregoing embodiments, the workpiece is positioned on the rotary seat structure 1 (one embodiment of which can be an expansion mandrel 29). Taking the expansion mandrel 29 as an example, a linear bearing is provided on the multi-station rotary platform, and the root of the expansion mandrel 29 is inserted into it through this linear bearing. Therefore, the expansion mandrel 29 has degrees of freedom in both the axial and circumferential directions. It can be understood that a limit can be set on the axial travel of the expansion mandrel 29 on the rotary platform, allowing it to have degrees of freedom within that axial travel (ensuring that when the straightening sleeve 22 is pressed down, the workpiece can move under pressure, thereby completing the straightening); and Furthermore, a spring is installed inside the rotary platform, and the spring is configured to lift the expansion mandrel 29, so that the expansion mandrel 29 is always lifted to the highest point of the axial stroke when it is not under pressure. Therefore, when the back plate straightening station 18 is working, when the straightening half plate 23 is relatively closed, it has a certain longitudinal height distance from the bottom surface of the turbine disk of the workpiece being straightened, so that the straightening half plate 23 can be easily rotated in and out without colliding or jamming with the workpiece. When the straightening sleeve 22 is pressed down for straightening, the workpiece is pressed down and attached to the straightening chuck 21 under pressure to achieve straightening.

[0025] After the turbine workpiece is straightened, the multi-station rotary table 20 is controlled to rotate, so that the workpiece is rotated from the back plate straightening station 18 to the cleaning station 19. This cleaning station 19 is especially used to clean the gap between the blades. During the processing of the workpiece, the shell material (sand, adhesive residue), slag and oxide scale need to be cleaned. This station is specially used to clean the gap between each blade. Specifically, the rotating seat structure 1 allows the workpiece to rotate freely around the turbine shaft; therefore, when cleaning the blades, the angle of the workpiece can be easily adjusted, and the gaps between the blades can be cleaned one by one; the cleaning station 19 includes an intermittent drive mechanism, which includes a actuating part 2 and a holding part 3. The actuating part 2 is coupled with the workpiece blade and intermittently actuates the blade to make the turbine workpiece rotate at a fixed angle; the holding part 3 cooperates with a specific arc-shaped edge. It can be understood that since the workpiece and the rotating seat structure 1 rotate as a whole, the specific arc-shaped edge can be a part on the workpiece or a part on the rotating seat structure 1. Specifically, it can be the outer circumferential wall of the turbine disk or the arc-shaped outer wall of a circular turntable-like structure set on the rotating seat; specifically, in this embodiment, the outer circumferential wall of the turbine disk of the workpiece is taken as an example.

[0026] The retaining part 3 restricts the rotation of the workpiece; the intermittent drive mechanism causes the actuating part 2 and the retaining part 3 to alternately engage with the worm gear workpiece according to a predetermined sequence, controlling the gaps between the worm gear blades to face the cleaning nozzle one by one. The cleaning method of the cleaning nozzle is not limited, and can be, for example, sandblasting, high-pressure blowing, dry ice cleaning, etc.

[0027] Furthermore, such as Figure 1 , 4 As shown, the holding part 3 includes a drive cam 4, and the actuating part 2 includes an actuating gear structure 5. The drive cam 4 and the actuating gear structure 5 are coaxially stacked and rotatably mounted on the secondary shaft 6, and the drive cam 4 and the actuating gear structure 5 rotate synchronously. The drive cam 4 is aligned with the side of the arc-shaped edge. In this embodiment, the rotation of the workpiece is restricted by the cooperation between the drive cam 4 and the lever arm 15. The drive cam 4 drives the lever arm 15 to rotate, and the lever arm 15 directly acts on the outer circumferential wall of the turbine disk of the workpiece. The actuating gear structure 5 is aligned with the blade base 7. Therefore, in actual use, the drive cam 4 and the actuating gear structure 5 rotate simultaneously and alternately contact the turbine workpiece to produce different effects. Specifically, in actual use, when the lever arm 15 of the holding part 3 presses on the turbine disk, it restricts the rotation of the workpiece, and the cleaning nozzle is set to face the gap between the blades, so that the cleaning medium can directly spray into the gap between the blades, thereby rinsing the difficult-to-clean areas between the blades. After cleaning for a certain period of time, the actuating part 2 interacts with the workpiece. Specifically, at this time, the drive cam 4 drives the lever arm 15 to rotate so that it temporarily loses contact with the workpiece, and at this time, the actuating part 2 drives the workpiece to rotate at a certain angle so that the next blade gap faces the cleaning nozzle. Then the actuating part 2 loses contact with the workpiece, and then the lever arm 15 continues to contact the workpiece again to limit the workpiece. In this way, the actuating part 2 and the holding part 3 maintain a certain rhythm and alternately act on the workpiece, and cooperate with the timed spray of the cleaning nozzle, so that the irregular workpiece is cleaned well.

[0028] Specifically, the intermittent drive mechanism further includes a drive gear structure 8, which controls the simultaneous rotation of the actuating gear structure 5 and the drive cam 4. The drive gear structure 8 is coupled to the actuating gear structure 5 and serves as the power input end. The drive gear structure 8 is an incomplete gear structure, which includes a drive tooth portion 9, an arc portion 10, and an axial lever 11. The two ends of the drive tooth portion 9 and the arc portion 10 are connected to form an incomplete tooth structure. The axial lever 11 is vertically fixed on the surface of the drive gear structure 8 and is located at the connection between the drive tooth portion 9 and the arc portion 10. Furthermore, the actuating gear structure 5 is a missing gear structure. The actuating gear structure 5 includes a driven tooth portion 12, a notch portion 13, and a radial lever 14. The notch portion 13 is a notch provided on the driven tooth portion 12. The notch portion 13 cooperates with the arc portion 10 of the drive gear structure 8. The radial lever 14 is provided on the planar end face of the actuating gear structure 5 and is arranged radially along the actuating gear structure 5. The radial lever 14 is positioned corresponding to the notch portion 13. The drive tooth portion 9 meshes with the driven tooth portion 12. The radial lever 14 extends radially out of the outer circle of the driven gear and into the inner side of the outer circle of the drive gear structure 8, and extends at least to the virtual circular trajectory formed by the movement trajectory of the axial lever 11. At the same time, the lever can rotate into the blade gap when it rotates.

[0029] In actual use, the drive gear structure 8 rotates actively (its speed is controllable), and its arc portion 10 and drive tooth portion 9 are coupled with the notch portion 13 and driven tooth portion 12 of the shifting gear structure 5, respectively. Specifically, when the drive tooth portion 9 meshes with the driven tooth portion 12, the shifting gear structure 5 is controlled to rotate. At this time, the drive cam 4 and the shifting gear structure 5 are defined as rotating. Further rotation transitions to the coupling between the arc portion 10 and the notch portion 13. During this process, the drive gear structure 8 rotates, while the shifting gear structure 5 does not rotate. At this time, the drive cam 4 and the shifting gear structure 5 are defined as holding. This is described in conjunction with the aforementioned lever arm 15. When in the holding state, the base circle of the drive cam 4 is opposite to the lever arm 15. At this time, the second end 32 of the lever arm 15 can be driven by the elastic element 16 to abut against the arc edge and thus limit the workpiece. When entering the rotation state, the cam circle of the drive cam 4 first contacts the second end 31 of the lever arm 15, thereby causing the lever arm 15 to rotate and temporarily disengage its second end 32 from the workpiece. During the continued rotation in the rotation state, the lever rotates out and engages the vertical part 26 of the blade, thereby causing the workpiece to rotate (so that the next blade slit faces the cleaning nozzle), and then continues to enter the holding state. This completes one cycle and works with the nozzle to clean the blade.

[0030] Specifically, the retaining part 3 further includes a lever arm 15 and an elastic element 16. The second end 31 of the lever arm 15 is coupled to the drive cam 4, and the second end 32 is coupled to the arc-shaped edge. The elastic element 16 is configured to make the second end always tend to move closer to the arc-shaped edge. The second end 32 contacts the arc-shaped edge and restricts the rotation of the workpiece. In this embodiment, the second end 32 of the lever arm 15 is pushed by the elastic element 16 to press the second end 32 onto the workpiece. The second end 32 can limit the workpiece by the friction force generated by the pressure. As another embodiment, the second end 32 can also be coupled to a circular turntable-like structure provided on the rotating seat. In order to increase the limiting force, the edge of the circular turntable-like structure can be provided with a ring of teeth, and the second end 32 is also provided with corresponding teeth that mesh with it. Thus, the placement of the teeth meshing with each other can achieve a firm limiting.

[0031] Furthermore, the actuating part 2 and the retaining part 3 are configured as an adjustable structure surrounding the drive gear structure 8. An adjusting arm 17 is provided rotating around the drive gear structure 8 as the center. The end of the adjusting arm 17 is provided with the actuating part 2 and the retaining part 3, so that the positions of the actuating part 2 and the retaining part 3 can be adjusted around the drive gear structure 8 and the distance between the actuating part 2, the retaining part 3 and the axis of the rotating seat structure 1 can be changed. The function of the adjusting arm 17 is similar to that of the aforementioned rotating platform 27. Before the multi-station rotary platform rotates, the adjusting arm 17 needs to be pulled first to rotate the intermittent drive mechanism out of the multi-station rotary platform to avoid interference during rotation. The end of the adjusting arm 17 is also provided with a position adjustment mechanism, which can be understood to be adjusted by a cylinder or a lead screw. Figure 4 The image shows the movement of the adjusting arm 17 by pushing and pulling with a cylinder.

[0032] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A radial flow turbine straightening and cleaning device, characterized in that, Includes a rotating base structure for fixing turbine workpieces, the rotating base structure allowing the workpieces to rotate freely about the turbine shaft; It also includes an intermittent drive mechanism, which includes a toggle part and a retaining part. The toggle part is coupled with the workpiece blade and intermittently toggle the blade to make the turbine workpiece rotate at a fixed angle. The retaining part cooperates with a specific arc-shaped edge and restricts the rotation of the workpiece. The intermittent drive mechanism alternately cooperates with the toggle part and the retaining part with the worm gear workpiece according to a predetermined sequence, and controls the gaps between the worm gear blades to face the cleaning nozzle one by one.

2. The radial flow turbine straightening and cleaning device according to claim 1, characterized in that, The holding part includes a drive cam, and the actuating part includes an actuating gear structure. The drive cam and the actuating gear structure are coaxially stacked and rotatably mounted on the secondary shaft, and the drive cam and the actuating gear structure rotate synchronously. The drive cam is aligned with the side of the arc-shaped edge, and the actuating gear structure is aligned with the base of the blade.

3. The radial flow turbine straightening and cleaning device according to claim 2, characterized in that, The intermittent drive mechanism further includes a drive gear structure coupled with a toggle gear structure. The drive gear structure is an incomplete gear structure, which includes a drive tooth section, an arc section, and an axial lever. The two ends of the drive tooth section and the arc section are connected to form an incomplete tooth structure. The axial lever is vertically fixed on the surface of the drive gear structure and is located at the connection between the drive tooth section and the arc section.

4. The radial flow turbine straightening and cleaning device according to claim 3, characterized in that, The actuating gear structure is a missing gear structure, comprising a driven tooth, a notch, and a radial lever. The notch is a notch provided on the driven tooth, which mates with the arc portion of the driving gear structure. The radial lever is disposed on the planar end face of the actuating gear structure and is arranged radially along the actuating gear structure, with its position corresponding to the notch. The driving tooth meshes with the driven tooth, and the radial lever extends radially out of the outer circle of the driven gear and into the inner side of the outer circle of the driving gear structure, extending at least to the virtual circular trajectory formed by the axial lever movement trajectory. Simultaneously, the lever can rotate into the blade gap when rotated.

5. The radial flow turbine straightening and cleaning device according to claim 2, characterized in that, The retaining part further includes a lever arm and an elastic element. The second end of the lever arm is coupled to a drive cam and the second end is coupled to an arc-shaped edge. The elastic element is configured to make the second segment always tend to move closer to the arc-shaped edge. The second end contacts the arc-shaped edge and restricts the rotation of the workpiece.

6. The radial flow turbine straightening and cleaning device according to claim 3, characterized in that, The actuating part and the retaining part are configured as an adjustable structure surrounding the drive gear structure. An adjusting arm is provided rotating around the drive gear structure. The end of the adjusting arm is provided with an actuating part and a retaining part, so that the actuating part and the retaining part can be adjusted in position around the drive gear structure and the distance between the actuating part, the retaining part and the axis of the rotating seat structure can be changed.

7. The radial flow turbine straightening and cleaning device according to claim 1, characterized in that, It also includes a multi-station rotary table, which has at least a back plate straightening station and a cleaning station. The multi-station rotary table controls the rotation and scheduling of workpieces between each station, and the multi-station rotary table has a rotating seat structure corresponding to each station.

8. The radial flow turbine straightening and cleaning device according to claim 7, characterized in that, The back plate straightening station includes a straightening chuck and a straightening sleeve; the straightening chuck is divided into two semi-circular straightening halves that are spliced ​​together, and the straightening halves match the shape and curvature of the back of the turbine disk; the straightening sleeve is cylindrical, with an opening at one end facing the workpiece, and an annular flange extending inward from the opening end, and the annular flange has a clearance opening that matches the vertical part of the blade at the base of the workpiece blade.

9. The radial flow turbine straightening and cleaning device according to claim 7, characterized in that, The cleaning station is equipped with a turnout platform and a pressure cylinder. The straightening half is set on the turnout platform, which controls the movement trajectory of the straightening half as it turns into or out of the multi-station rotary table. When turning in, the two straightening half pieces are joined together as a whole and placed under the turbine disk of the workpiece. When turning out, the two straightening half pieces move out of the multi-station rotary table without interfering with each other. The lower end of the pressure cylinder is equipped with a straightening sleeve, and the pressure cylinder drives the straightening sleeve to press down and cooperate with the straightening chuck to perform the straightening operation on the turbine disk.

10. A radial flow turbine straightening and cleaning device according to any one of claims 1-9, characterized in that, The rotating seat structure is configured to have an axial elastic extension degree of freedom.

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