Machining tool device for manufacturing and forming steam turbine cylinder casting

Abstract

The steam turbine cylinder casting manufacturing forming machining tool device comprises a machine body, a detection assembly, a containing table and a clamping mechanism, the clamping mechanism comprises a telescopic assembly installed on the machine body, a pair of installation grooves are symmetrically formed in the telescopic assembly, and a pair of pressing rods which are in transmission connection through a linkage structure are arranged in each installation groove; a pair of mounting grooves are formed in the telescopic assembly, a lifting plate is slidably arranged on the lower portions of the pair of mounting grooves, the lifting plate is in transmission connection with the pair of linkage structures while being elastically connected with the telescopic assembly, and the lifting plate is controlled to vertically ascend and descend through an actuator. The linkage structure controls the pressing rods to stretch out of or retract into the mounting grooves after the telescopic assembly ascends or before the telescopic assembly descends, in the feeding and discharging process, the clamping mechanism is located below the containing table, and the workpiece can be prevented from colliding with the clamping mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of steam turbine cylinder casting processing, and specifically relates to a manufacturing and forming processing tooling device for steam turbine cylinder castings. Background Art

[0002] The steam turbine is one of the three main power equipment in a thermal power plant. Its rotor and cylinder have high machining precision, and the main components work in high-temperature and high-pressure environments. The steam turbine cylinder is the outer shell of the steam turbine. The steam turbine is one of the three main power equipment in a thermal power plant. Its rotor and cylinder have high machining precision, and the main components work in high-temperature and high-pressure environments.

[0003] If the surface finish of the inner wall of the steam turbine cylinder does not meet the standard, the following defects will exist:

[0004] Affect steam flow:

[0005] Insufficient surface finish will increase the resistance of steam flowing in the cylinder. This is because the rough surface will interfere with the streamlined flow of steam, causing eddies and turbulence in local areas of the steam, increasing energy loss, and reducing the efficiency of the steam turbine.

[0006] Uneven surface roughness may also lead to uneven steam flow, resulting in uneven distribution of steam pressure and flow velocity in various parts of the cylinder, thereby affecting the output and stability of the steam turbine.

[0007] Cause scaling and corrosion:

[0008] The rough inner wall surface is more likely to adsorb impurities, salts, moisture, etc. in the steam. After these substances accumulate, a scale layer will be formed. Scaling will further affect the heat transfer efficiency of the steam and reduce the performance of the steam turbine.

[0009] At the same time, the metal surface under the scale layer is prone to form a local corrosion environment, accelerating the corrosion process of the cylinder body and shortening the service life of the cylinder body. Corrosion may also cause the wall thickness of the cylinder body to decrease, the strength to decline, and there are potential safety hazards.

[0010] Cause component wear:

[0011] When the steam turbine is running, components such as the rotor rotate at high speed in the cylinder. Insufficient inner wall finish will cause the air flow in the gap between the rotor and the cylinder to be disordered, generating uneven forces on components such as rotor blades and shaft seals, increasing the degree of component wear.

[0012] Wear will reduce the dimensional accuracy of components, affect the dynamic balance of the rotor, and thus cause vibration problems. Severe vibration will not only affect the normal operation of the steam turbine, but also damage the foundation and connecting components of the entire unit.

[0013] Generate thermal stress concentration:

[0014] Due to the rough surface of the inner wall, the heating and cooling speed of the cylinder will be uneven during the start-up, shutdown and load change of the turbine. The local protrusions and depressions on the rough surface will form weak points of heat exchange, resulting in poor heat transfer and thermal stress concentration.

[0015] Long-term thermal stress concentration will cause fatigue cracks in the cylinder material. Crack expansion may cause cylinder leakage, affecting the safety and reliability of the turbine.

[0016] Therefore, it is necessary to detect the inner wall finish of the turbine cylinder casting. In order to avoid the above defects, several solutions have emerged in the prior art:

[0017] The technical solution disclosed in a steam turbine cylinder casting molding and processing tooling equipment of a Chinese invention patent with announcement number CN118150688A is as follows: the cylinder casting is fixed by a supporting mechanism, and the inner diameter detection component of the detection mechanism controls the diameter of the connecting arm 1 through the telescopic rod 3, so as to control the detection head to be close to the inner wall of the cylinder casting for inspection;

[0018] A Chinese invention patent with announcement number CN114739268B discloses a steam turbine cylinder casting manufacturing and molding tooling device, which uses a support mechanism to support and position the cast steam turbine cylinder, adjusts the detection position of the detection mechanism according to the inner diameter of the steam turbine cylinder, and performs a surface finish detection on the inner wall of the cylinder body through the detection mechanism.

[0019] However, the supporting structures adopted in the above two technical solutions are both horizontally retractable clamping structures set on both sides of the table, which are easy to collide with the clamping structure during the loading and unloading process of the turbine cylinder body, causing damage or deformation of the clamping structure, affecting the clamping effect of the clamping structure on the turbine cylinder body. Summary of the invention

[0020] The present invention aims to solve one of the technical problems existing in the prior art.

[0021] The present application provides a steam turbine cylinder casting manufacturing molding processing tooling device, including a machine body, a detection component, a placement table and a clamping mechanism, the clamping mechanism includes a telescopic component installed on the machine body, a pair of mounting grooves are symmetrically arranged in the telescopic component, each mounting groove is provided with a pair of pressure rods connected to each other through a linkage structure, a lifting plate is slidably arranged at the lower part of the pair of mounting grooves, the lifting plate is elastically connected to the telescopic component and is also connected to the pair of linkage structures, and the lifting plate is controlled to rise and fall vertically through an actuator;

[0022] When the actuator controls the lifting plate to rise / fall, it drives the telescopic assembly to rise and then cooperates with each linkage structure to make each pressure rod extend out of the installation slot / cooperates with each linkage structure to make each pressure rod retract into the installation slot and then drives the telescopic assembly to fall.

[0023] It is characterized in that the telescopic assembly includes a pair of lifting shells slidably installed on the body through slots, each lifting shell is located on both sides of the placement table, each mounting slot is arranged on the inner wall of each lifting shell, and a blocking block is provided at the bottom of the outer wall of each lifting shell, and both ends of the lifting plate are movably installed in the corresponding mounting slots through elastic support members.

[0024] The elastic support member includes a plurality of sliding holes opened at the lower end of each lifting shell, each sliding hole is provided with a sliding rod, the top end of each sliding rod extends into the corresponding mounting groove and is fixedly connected to the bottom surface of the lifting plate, a circular plate is fixedly provided at the bottom end, and a supporting spring is provided between each circular plate and the bottom surface of the corresponding lifting shell.

[0025] The linkage structure includes a fixed beam fixedly arranged in the middle of the installation groove, an upper floating beam slidably arranged on the upper part of the installation groove, a lower floating beam slidably arranged on the lower part of the installation groove, and a plurality of hinged seats respectively arranged at both ends of the fixed beam, the upper floating beam and the lower floating beam. A pair of connecting rods are hingedly arranged between adjacent hinged seats. The middle parts of the pair of connecting rods are hingedly arranged with each other and are rotatably connected with the end of the pressure rod. The lower floating beam and the upper floating beam are connected with each other through a gear transmission structure, and the lower floating beam is fixedly connected with the lifting plate.

[0026] The gear transmission structure comprises a transmission gear rotatably mounted on a fixed beam, and racks meshing with the transmission gear are fixedly arranged on the surfaces of the upper floating beam and the lower floating beam.

[0027] A pair of articulated seats at the same level are detachably installed on the upper floating beam, the fixed beam and the lower floating beam through a quick-release structure.

[0028] The quick-release structure includes a disassembly and assembly slot, a telescopic control component, a pair of card seats and a pair of card frames. The telescopic control component is arranged in the middle of the disassembly and assembly slot, each card seat is arranged at both ends of the disassembly and assembly slot, and each card frame sliding sleeve is arranged on the outer peripheral side of the card seat. Card slots are arranged at both ends of the disassembly and assembly slot. The telescopic control component is used to control a pair of card frames to insert / detach from the corresponding card slots.

[0029] The disassembly and assembly groove comprises a central circular groove and a pair of square grooves. The opposite sides of the central circular groove are connected to the square grooves on both sides through the inner groove. A pair of clamping grooves are respectively arranged at one end of the square grooves away from the inner groove.

[0030] The telescopic control assembly includes a turntable with a hexagonal groove, a push plate installed in each inner groove through a thrust spring, a pair of rocker arms and a pair of fan-shaped grooves. The pair of fan-shaped grooves are arranged at intervals in the turntable. One end of the pair of rocker arms is hinged at the inner end of each fan-shaped groove, and the other end is hinged with a connecting rod. The other end of each connecting rod is fixedly connected to the corresponding push plate. Each push plate is inclined toward the outside of one end of the corresponding slot, and the other end is abutted against the thrust spring.

[0031] The telescopic control assembly also includes an arc groove arranged at the inner end of the central circular groove, the center of the arc groove is concentric with the axis of the central circular groove, and one-third of the arc groove is located below the horizontal line 9, and the remaining two-thirds are located above the horizontal line 9. A limit block is fixed at the inner end of the turntable, and the limit block is slidably installed in the arc groove.

[0032] The beneficial effects of the present invention are as follows:

[0033] The lifting and lowering of the lifting plate elastically connected to the telescopic assembly is controlled by the actuator, so that the telescopic assembly with a linkage structure and a plurality of pressure rods first rises and then extends the pressure rods to fix the workpiece / each pressure rod releases the fixation of the workpiece and then the telescopic assembly descends. In this way, the clamping mechanism is above the placement table only when the workpiece is fixed. When the workpiece needs to be transferred to the placement table or removed from the placement table, the clamping mechanism is located above the placement table, which can effectively prevent the workpiece from hitting the clamping mechanism during the loading and unloading process, thereby improving the stability of the clamping mechanism for the workpiece and the consistency of the clamping effect;

[0034] Moreover, among the plurality of pressure rods, the two lower ones press and fix the two sides of the workpiece, and the two upper ones press and fix the top of the workpiece, which can improve the fixing effect of the workpiece. Compared with the prior art that only fixes the workpiece from two sides, the probability of the workpiece moving during the detection of the workpiece by the detection component is further reduced, thereby improving the accuracy of the workpiece detection;

[0035] Furthermore, each articulated seat can be detachably installed via a quick-release structure. When it is necessary to clamp different types of workpieces, the quick-release structures are operated to release the fixation of each articulated seat, and each clamping seat together with the corresponding connecting rods and pressure rods are removed. The connecting rods corresponding to the pressure rods that are adapted to the workpiece to be clamped (the diameter of the pressure rod and the peripheral wall contour are adapted to the workpiece to be clamped) are installed through the corresponding articulated seats and the quick-release structures to adapt to the clamping and fixation of workpieces with different surfaces, thereby improving the scope of application of the processing device of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional diagram of a steam turbine cylinder casting manufacturing molding processing tooling device in an embodiment of the present application (when loading and unloading);

[0037] Figure 2 A three-dimensional diagram of a steam turbine cylinder casting manufacturing and molding tooling device in an embodiment of the present application (during testing);

[0038] Figure 3 A three-dimensional diagram of a steam turbine cylinder casting manufacturing molding and processing tooling device in an embodiment of the present application (when testing and the body is cut open);

[0039] Figure 4 A three-dimensional diagram of the clamping mechanism in the embodiment of the present application;

[0040] Figure 5 Isometric view of the upper floating beam in the embodiment of the present application;

[0041] Figure 6 Isometric view of the quick-release structure in the embodiment of the present application;

[0042] Figure 7 Isometric view of the quick-release structure (without turntable) in the embodiment of the present application;

[0043] Figure 8 Isometric view of the installation groove structure in the embodiment of the present application;

[0044] Figure 9 Isometric view of the turntable, connecting rod and push plate in the embodiment of the present application;

[0045] Figure 10 Isometric view of the card seat in the embodiment of the present application;

[0046] Figure 11 Isometric view of the assembly of each connecting rod and each pressure rod in the embodiment of the present application;

[0047] Figure 12 Schematic diagram of the state where the limit block is in tight contact with the upper and lower ends of the arc groove in the embodiment of the present application.

[0048] Reference numerals

[0049] 1 - body, 2 - detection component, 3 - placement table, 4 - clamping mechanism, 5 - telescopic component, 51 - installation groove, 52 - notch, 53 - lifting shell, 54 - blocking block, 55 - elastic support member, 551 - sliding hole, 552 - sliding rod, 553 - circular plate, 554 - support spring, 6 - linkage structure, 61 - pressure rod, 62 - fixed beam, 63 - upper floating beam, 631 - overhanging edge, 64 - lower floating beam, 65 - hinge seat, 66 - connecting rod, 67 - gear transmission structure, 671 - transmission gear, 672 - rack, 7 - actuator, 71 - lifting plate, 72 - motor, 73 - screw, 8 - quick-release structure, 81 - disassembly and assembly groove, 811 - central circular groove, 812 - square groove, 813 - inner groove, 8131 - protruding part, 8132 - through groove, 82 - telescopic control component, 821 - hexagon socket, 822 - turntable, 823 - thrust spring, 824 - push plate, 825 - swing rod, 826 - fan-shaped groove, 827 - connecting rod, 828 - arc groove, 829 - limit block, 83 - card seat, 84 - card frame, 85 - card slot, 86 - square ring groove, 87 - stop block, 88 - reset groove, 89 - reset spring, 9 - horizontal line. Detailed implementation manners

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0051] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0052] In the following, in conjunction with the accompanying drawings, the steam turbine cylinder casting manufacturing and molding processing tooling device provided in the embodiment of the present application is described in detail through specific embodiments and their application scenarios.

[0053] Embodiment 1:

[0054] like Figures 1 to 11 As shown, the embodiment of the present application provides a steam turbine cylinder casting manufacturing molding processing tooling device, including a body 1, a detection component 2, a placement table 3 and a clamping mechanism 4, the clamping mechanism 4 includes a telescopic component 5 installed on the body 1, a pair of mounting grooves 51 are symmetrically arranged in the telescopic component 5, each mounting groove 51 is provided with a pair of pressure rods 61 that are mutually transmission-connected through a linkage structure 6, and a lifting plate 71 is slidingly provided at the lower part of the pair of mounting grooves 51, the lifting plate 71 is elastically connected to the telescopic component 5 and is transmission-connected to the pair of linkage structures 6, and the lifting plate 71 is controlled to be lifted vertically by an actuator 7;

[0055] When the actuator 7 controls the lifting plate 71 to rise / fall, it drives the telescopic assembly 5 to rise and then cooperates with each linkage structure 6 to make each pressure rod 61 extend out of the installation slot 51 / cooperates with each linkage structure 6 to make each pressure rod 61 retract into the installation slot 51 and then drives the telescopic assembly 5 to fall.

[0056] In this embodiment of the present application, when it is necessary to clamp the workpiece on the top of the placing table 3 due to the adoption of the above structure, the actuator 7 controls the lifting plate 71 to rise. The telescopic assembly 5 elastically connected to the lifting plate 71 also rises accordingly until each pressure rod 61 moves above the placing table 3. The telescopic assembly 5 has risen to the highest point and cannot continue to rise. The actuator 7 continues to act to control the lifting plate 71 to rise, driving each linkage structure 6 to act, so that each pressure rod 61 extends out of the installation groove 51, approaches and presses the left and right sides and the left and right ends of the top of the workpiece from both sides. Then the detection assembly 2 (including the L-shaped frame driven by a cylinder, a rod body is provided on the L-shaped frame, and a detection head is provided at the other end of the rod body) acts to detect the surface finish of the inner wall of the workpiece (the cylinder drives the L-shaped frame to act, so that the detection head extends into the inner wall of the workpiece. There are several detection heads distributed in a circular pattern. Just moving the rod body in and out of the inner wall of the workpiece can complete the detection of the surface finish of the inner wall of the workpiece). After the detection of the surface finish of the inner wall of the workpiece is completed, the detection assembly 2 disengages from the workpiece (the cylinder drives the L-shaped frame away from the workpiece until the detection head disengages from the workpiece). Then the actuator 7 controls the lifting plate 71 to descend, and each linkage structure 6 acts in the reverse direction, so that each pressure rod 61 retracts into the corresponding installation groove 51, disengaging from the contact with the surface of the workpiece and releasing the fixation of the workpiece. Then the actuator 7 continues to act, and the lifting plate 71 and the telescopic assembly 5 descend together until the top surface of the telescopic assembly 5 is flush with the top surface of the placing table 3. At this time, the workpiece can be removed from the placing table 3. After placing the next workpiece to be detected on the top surface of the placing table 3, the actuator 7 runs again.

[0057] Embodiment 2:

[0058] As Figures 1 to 4 shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, the telescopic assembly 5 includes a pair of lifting shells 53 slidably installed on the machine body 1 through notches 52. Each lifting shell 53 is located on both sides of the placing table 3 respectively. Each installation groove 51 is provided on the inner side wall of each lifting shell 53 respectively. A blocking block 54 is provided at the bottom of the outer side wall of each lifting shell 53. Both ends of the lifting plate 71 are movably installed in the corresponding installation groove 51 through elastic support members 55.

[0059] Further, the elastic support member 55 includes a plurality of sliding holes 551 opened at the lower ends of each lifting shell 53. A sliding rod 552 is provided in each sliding hole 551. The top end of each sliding rod 552 extends into the corresponding installation groove 51 and is fixedly connected to the bottom surface of the lifting plate 71. A circular plate 553 is fixedly provided at the bottom end. A support spring 554 is provided between each circular plate 553 and the bottom surface of the corresponding lifting shell 53.

[0060] The actuator 7 includes a motor 72 and a screw rod 73. The screw rod 73 is in threaded transmission connection with the lifting plate 71 through a screw hole.

[0061] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the motor 72 drives the screw rod 73 to rotate through the screw hole 74 for thread transmission, and when the lifting plate 71 is controlled to rise, under the support of each supporting spring 554, the bottom surfaces of both ends of the lifting plate 71 are tightly pressed against the bottom surfaces of each mounting groove 51. When the lifting plate 71 rises, it drives a pair of lifting shells 53 to rise together, until each pressure rod 61 rises to above the placement table 3, and the blocking block 54 on the outer wall of each lifting shell 53 also abuts against the top surface of the inner cavity of the machine body 1, and each lifting shell 53 cannot continue to rise, and the motor 72 continues to run. Since each lifting shell 53 can no longer rise, the lifting plate 71 that continues to rise rises in each mounting groove 51, and each sliding rod 552 rises together with the lifting plate 71. Each supporting spring 554 is compressed and stores elastic potential energy. At the same time, the rising lifting plate 71 drives the linkage structure 6 to move, so that each pressure rod 61 extends out of the corresponding mounting groove 51 to fix the workpiece on the placement table 3;

[0062] The motor 72 drives the screw rod 73 to rotate through the screw hole 74 for threaded transmission. When the lifting plate 71 is controlled to descend, each support spring 554 gradually extends but still maintains support for a pair of lifting shells 53. In this process, each linkage structure 6 moves in the opposite direction until the bottom surface of the lifting plate 71 contacts the bottom surface of a pair of mounting grooves 51, and each pressure rod 61 retracts into the corresponding mounting groove 51. Then the motor 72 continues to run to make the lifting plate 71 descend. At this time, each lifting shell 53 descends together with the lifting plate 71 until the top surface of each lifting shell 53 is flush with the surface of the placement table 3, and the actuator 7 stops running.

[0063] Embodiment 3:

[0064] like Figures 2 to 4 As shown, in the present embodiment, in addition to the structural features of the aforementioned embodiments, the linkage structure 6 includes a fixed beam 62 fixedly mounted in the middle of the mounting groove 51, an upper floating beam 63 slidably mounted on the upper part of the mounting groove 51, a lower floating beam 64 slidably mounted on the lower part of the mounting groove 51, and a plurality of hinged seats 65 respectively mounted at both ends of the fixed beam 62, the upper floating beam 63 and the lower floating beam 64, a pair of connecting rods 66 are hinged between adjacent hinged seats 65, the middle parts of the pair of connecting rods 66 are hinged to each other and rotatably connected to the end of the pressure rod 61, the lower floating beam 64 and the upper floating beam 63 are connected to each other through a gear transmission structure 67, and the lower floating beam 64 is fixed to the lifting plate 71.

[0065] Furthermore, a shielding edge 631 is provided at the top of the upper floating beam 63 . When the upper floating beam 63 rises to the top of the mounting groove 51 , the top surface of the shielding edge 631 is flush with the top surface of the lifting shell 53 .

[0066] Furthermore, the gear transmission structure 67 includes a transmission gear 671 rotatably mounted on the fixed beam 62 , and racks 672 meshing with the transmission gear are fixedly disposed on the surfaces of the upper floating beam 63 and the lower floating beam 64 .

[0067] In this embodiment of the present application, due to the adoption of the above structure, when the lifting plate 71 rises / falls in the installation groove 51, it drives the lower floating beam 64 to approach / away from the fixed beam 62. Each rack 672 meshes with the transmission rod gear 671 for transmission, driving the upper floating beam 63 to approach / away from the fixed beam 62 simultaneously, so that the ends of each pair of connecting rods 66 away from the hinge seat 65 extend / retract from the installation groove 51, and thus the extension / retraction of each pressure rod 61 from the installation groove 51 can be controlled.

[0068] Embodiment 4:

[0069] As Figures 4 to 11 shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, a pair of hinge seats 65 at the same horizontal height are detachably installed on the upper floating beam 63, the fixed beam 62, and the lower floating beam 64 through a quick-release structure 8.

[0070] Furthermore, the quick-release structure 8 includes a disassembly and assembly groove 81, a telescopic control component 82, a pair of clamping seats 83, and a pair of clamping frames 84. The telescopic control component 82 is arranged in the middle of the disassembly and assembly groove 81. Each clamping seat 83 is arranged at both ends of the disassembly and assembly groove 81. Each clamping frame 84 is slidably sleeved on the outer peripheral side of the clamping seat 83. Card slots 85 are provided at both ends of the disassembly and assembly groove 81. The telescopic control component 82 is used to control the pair of clamping frames 84 to insert / separate from the corresponding card slots 85.

[0071] Furthermore, the quick-release structure 8 further includes a square ring groove 86 arranged around the circumferential wall of the maximum diameter of each clamping seat 83. The clamping frame 84 is slidably arranged in the square ring groove 86 and has a sliding space with the square ring groove 86 in the horizontal direction. Blocks 87 are fixedly provided at the top and bottom of the square ring groove 86. Reset grooves 88 are provided at the top and bottom of the clamping frame 84. A reset spring 89 is arranged in each reset groove 88. Both ends of each reset spring 89 are respectively abutted against the corresponding block 87 and the end of the corresponding reset groove 88 away from the card slot 85.

[0072] Furthermore, the disassembly and assembly groove 81 includes a central circular groove 811 and a pair of square grooves 812. The opposite sides of the central circular groove 811 are respectively communicated with the square grooves 812 on both sides through inner grooves 813. A pair of card slots 85 are respectively arranged at one end of each square groove 812 away from the inner groove 813.

[0073] Furthermore, protrusion portions 8131 are fixedly provided on the top and bottom surfaces of the inner groove 813 near one end of the central circular groove 811. A through groove 8132 is formed between adjacent pairs of protrusion portions 8131. One end of each thrust spring 823 abuts against the corresponding protrusion portion 8131, and the other end abuts against the corresponding push plate 824. Each connecting rod 827 is inserted into the through groove 8132 between the corresponding pair of protrusion portions 8131.

[0074] In this embodiment of the present application, due to the adoption of the above structure, when installing the hinge seat 65, align the clamping seat 83 with the corresponding square groove 812, then press the clamping seat 83 into the square groove 812 until the clamping seat 83 completely enters the square groove 812. Then, operate the telescopic control assembly 82 to push the clamping frame 84 into the corresponding clamping groove 85. Each reset groove 88 moves with the clamping frame 84, compressing the reset spring 89. Each reset spring 89 is compressed and stores elastic potential energy, thus completing the installation of the hinge seat 65. When disassembling the hinge seat 65, operate the telescopic control assembly 82 to release the force on the clamping frame 84. Each reset spring 89 releases elastic potential energy, pushing the corresponding reset groove 88 and the clamping frame 84 to slide away from the corresponding clamping groove 85 until the clamping frame 84 moves into the square groove 812. At this time, the clamping seat 83 can be disengaged from the square groove 812.

[0075] Embodiment 5:

[0076] As Figures 5 to 12 shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, the telescopic control assembly 82 includes a turntable 822 with an internal hexagonal groove 821, a push plate 824 installed in each inner groove 813 through a thrust spring 823, a pair of swing rods 825 and a pair of sector grooves 826. The pair of sector grooves 826 are arranged at intervals in the turntable 822. One ends of the pair of swing rods 825 are respectively hinged inside the inner ends of the respective sector grooves 826, and the other ends are hinged with a connecting rod 827. The other ends of the respective connecting rods 827 are fixedly connected to the corresponding push plates 824. The outer sides of the ends of each push plate 824 facing the corresponding clamping groove 85 are inclined, and the other ends are in contact with the thrust spring 823.

[0077] Furthermore, the telescopic control assembly 82 further includes an arc groove 828 provided at the inner end of the central circular groove 811. The center of the arc groove 828 is concentric with the axis of the central circular groove 811, and one-third of the arc groove 828 is located below the horizontal line 9, and the remaining two-thirds are located above the horizontal line 9. A limit block 829 is fixedly provided at the inner end of the turntable 822, and the limit block 829 is slidably installed in the arc groove 828.

[0078] In this embodiment of the present application, due to the adoption of the above-mentioned structure, in the initial state, each limit block 829 is located at the upper end of the corresponding arc groove 828, each thrust spring 823 is extended, and one end of each push plate 824 away from the thrust spring 823 extends into the square groove 812, and the outer side of this end of each push plate 824 is inclined. When the socket 83 is pressed into the square groove 812, it cooperates with the inclined part of each push plate 824 to push each push plate 824 out of the square groove 812. In this process, each thrust spring 823 is compressed and stores elastic potential energy, and each connecting rod 827 moves with the corresponding push plate 824, pushing the rocker rod 825 to make the turntable 822 rotate, and the limit block 829 slides to the arc groove The middle part of 828 (at this time, the limit block 829 is still above the horizontal line 9, and the end of each swing rod 825 located in the corresponding fan-shaped groove 826 has not crossed the horizontal line 9), until the card seat 83 completely enters the square groove 812, the card frame 84 is aligned with the push plate 824, and the thrust springs 823 release the elastic potential energy to push the card frames 84 to slide into the card groove 85 (the sum of the elastic forces of the thrust springs 823 is greater than the sum of the elastic forces of the return springs 89 on the corresponding card frames 84), and the connecting rods 827 move together with the push plates 824 toward the square groove 812, and the swing rods 825 pull the turntable 822 to rotate, and the limit blocks 829 slide to abut against the upper end surface of the corresponding arc groove 828 When it is necessary to disassemble each card seat 83, rotate the turntable 822 to drive each swing rod 825 to pull the corresponding connecting rod 827 and the push plate 824 to move toward the central circular groove 811. Each thrust spring 823 is compressed and stores elastic potential energy. Each reset spring 89 releases the elastic potential energy to push the corresponding reset groove 88 to make the corresponding card frame 84 break away from the corresponding card groove 85 and completely enter the corresponding square groove 812. Each limit block 829 crosses the horizontal line 9 and moves to the lower end of the arc groove 828. At the same time, one end of each swing rod 825 located in the corresponding fan-shaped groove 826 also crosses the horizontal line 9. Then the staff takes out the hexagon socket bolt from the hexagon socket groove 821 to release the external force restriction on the turntable 822. , each thrust spring 823 releases its elastic potential energy and applies a thrust force to each push plate 824 away from the central circular groove 811. This will apply the force of the thrust spring 823 to each connecting rod 827 and the rocker rod 825, thereby making the limit block 829 press against the lower end of the arc groove 828, so that each push plate 824 cannot enter the square groove 812. After the staff removes the card seat 83 from the square groove 812, the turntable 822 is rotated in the opposite direction to make each limit block 829 slide toward the upper end of the arc groove 828. When each limit block 829 moves above the horizontal line 9, the thrust spring 823 releases its elastic potential energy to push the end of each push plate 824 with the inclined surface to extend into the square groove 812.

[0079] The horizontal line 9 is coaxial with the connecting rod 827, and the center of the turntable 822 is also located on the horizontal line 9. When the limit block 829 is at the upper end of the arc groove 828, the thrust applied by each thrust spring 823 to each push plate 824 away from the turntable 822 acts on the turntable 822 through each connecting rod 827 and the swing rod 825, causing the turntable 822 to bear a clockwise acting force, so that the limit block 829 is in tight contact with the upper end of the arc groove 828. When the limit block 829 rotates to the lower end of the arc groove 828, the turntable 822 rotates, driving the end of each swing rod 825 located in the sector groove 826 to move to the other side of the horizontal line 9. The thrust applied by each thrust spring 823 to each push plate 824 away from the turntable 822 acts on the turntable 822 through each connecting rod 827 and the swing rod 825, causing the turntable 822 to bear a counterclockwise acting force, and the limit block 829 can be in tight contact with the lower end of the arc groove 828.

[0080] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0081] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A manufacturing, forming and processing tooling device for a steam turbine cylinder casting, comprising a machine body, a detection assembly, a placement table and a clamping mechanism, characterized in that, The clamping mechanism comprises a telescopic assembly mounted on the machine body, a pair of mounting grooves are symmetrically arranged in the telescopic assembly, a pair of pressure rods are arranged in each mounting groove and are connected to each other by a linkage structure, a lifting plate is slidably arranged at the lower part of the pair of mounting grooves, the lifting plate is elastically connected to the telescopic assembly and is connected to the pair of linkage structures by a transmission, and the lifting plate is controlled to rise and fall vertically by an actuator; When the actuator controls the lifting plate to rise / fall, it drives the telescopic assembly to rise and then cooperates with each linkage structure to make each pressure rod extend out of the installation slot / cooperates with each linkage structure to make each pressure rod retract into the installation slot and then drives the telescopic assembly to fall.

2. The manufacturing, forming and processing tooling device for a steam turbine cylinder casting according to claim 1, characterized in that, The telescopic assembly includes a pair of lifting shells slidably installed on the body through slots, each lifting shell is located on both sides of the placement table, each mounting slot is arranged on the inner wall of each lifting shell, and a blocking block is provided at the bottom of the outer wall of each lifting shell. Both ends of the lifting plate are movably installed in the corresponding mounting slots through elastic support members.

3. The manufacturing, forming and processing tooling device for a steam turbine cylinder casting according to claim 2, wherein, The elastic support member includes a plurality of sliding holes opened at the lower end of each lifting shell, each sliding hole is provided with a sliding rod, the top end of each sliding rod extends into the corresponding mounting groove and is fixedly connected to the bottom surface of the lifting plate, a circular plate is fixedly provided at the bottom end, and a supporting spring is provided between each circular plate and the bottom surface of the corresponding lifting shell.

4. A manufacturing, forming and processing tooling device for a steam turbine cylinder casting according to claim 1, characterized in that, The linkage structure includes a fixed beam fixedly arranged in the middle of the installation groove, an upper floating beam slidably arranged in the upper part of the installation groove, a lower floating beam slidably arranged in the lower part of the installation groove, and a plurality of hinged seats respectively arranged at both ends of the fixed beam, the upper floating beam and the lower floating beam. A pair of connecting rods are hinged between adjacent hinged seats, the middle parts of the pair of connecting rods are hinged to each other and rotatably connected to the end of the pressure rod. The lower floating beam and the upper floating beam are connected to each other through a gear transmission structure, and the lower floating beam is fixedly connected to the lifting plate.

5. A manufacturing, forming, and processing tooling device for a steam turbine cylinder casting, characterized in that, The gear transmission structure comprises a transmission gear rotatably mounted on a fixed beam, and racks meshing with the transmission gear are fixedly arranged on the surfaces of the upper floating beam and the lower floating beam.

6. A manufacturing, forming, and machining tooling device for a steam turbine cylinder casting according to claim 4, characterized in that, A pair of articulated seats at the same level are detachably installed on the upper floating beam, the fixed beam and the lower floating beam through a quick-release structure.

7. The manufacturing, forming and processing tooling device for a steam turbine cylinder casting according to claim 6, characterized in that, The quick-release structure includes a disassembly and assembly slot, a telescopic control component, a pair of card seats and a pair of card frames. The telescopic control component is arranged in the middle of the disassembly and assembly slot, each card seat is arranged at both ends of the disassembly and assembly slot, and each card frame sliding sleeve is arranged on the outer peripheral side of the card seat. Card slots are arranged at both ends of the disassembly and assembly slot, and the telescopic control component is used to control a pair of card frames to insert / detach from the corresponding card slots.

8. A manufacturing, forming, and machining tooling device for a steam turbine cylinder casting according to claim 7, characterized in that, The disassembly and assembly groove comprises a central circular groove and a pair of square grooves. The opposite sides of the central circular groove are connected to the square grooves on both sides through the inner groove. A pair of clamping grooves are respectively arranged at one end of the square grooves away from the inner groove.

9. The manufacturing, forming and processing tooling device for a steam turbine cylinder casting according to claim 8, characterized in that, The telescopic control assembly includes a turntable with a hexagonal groove, a push plate installed in each inner groove through a thrust spring, a pair of rocker arms and a pair of fan-shaped grooves. The pair of fan-shaped grooves are arranged at intervals in the turntable. One end of the pair of rocker arms is hinged to the inner end of each fan-shaped groove, and the other end is hinged to a connecting rod. The other end of each connecting rod is fixedly connected to the corresponding push plate. Each push plate is inclined toward the outside of one end of the corresponding slot, and the other end is abutted against the thrust spring.

10. A manufacturing, forming, and processing tooling device for a steam turbine cylinder casting, as described in claim 9, characterized in that, The telescopic control component further includes an arc groove provided at the inner end of the central circular groove. The center of the arc groove is concentric with the axis of the central circular groove, and one-third of the arc groove is located below the horizontal line 9, and the remaining two-thirds is located above the horizontal line 9. A limit block is fixedly provided at the inner end of the turntable, and the limit block is slidably installed in the arc groove.

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