CN114770154B - Fixing clamp for processing stator blade seat of steam turbine - Google Patents
Fixing clamp for processing stator blade seat of steam turbine Download PDFInfo
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- CN114770154B CN114770154B CN202210504928.8A CN202210504928A CN114770154B CN 114770154 B CN114770154 B CN 114770154B CN 202210504928 A CN202210504928 A CN 202210504928A CN 114770154 B CN114770154 B CN 114770154B
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- 238000003860 storage Methods 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 238000003754 machining Methods 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 18
- 230000003068 static effect Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention belongs to the technical field of stator blade seat processing, and discloses a fixing clamp for processing a stator blade seat of a steam turbine, which comprises a gas storage tank, wherein a movable plate is arranged at the left end of the gas storage tank, a fixing frame is arranged at the left end of the movable plate, a first fixing seat is fixedly arranged at the bottom end of the movable plate at equal angles, and a connecting rod is movably connected to the bottom end of the first fixing seat through a rotating shaft. According to the invention, the outer side surface and the inner side surface of the corresponding stator blade seat are extended through the inner clamping plate, the clamping of the outer side surface from outside to inside and the supporting of the inner side surface from inside to outside are realized through the relatively close outer clamping plate or the relatively far inner clamping plate, the clamping of the outer side surface and the supporting of the inner side surface can be switched at any time, the problem that the outer side surface and the inner side surface are required to be clamped by different clamping devices in the processing process of the traditional clamping device is avoided, the fixation can be completed by using the same clamping device, the time for replacing the clamping device in the processing process is obviously reduced, and the working efficiency in the processing process is improved.
Description
Technical Field
The invention belongs to the technical field of stator blade seat machining, and particularly relates to a fixing clamp for machining a stator blade seat of a steam turbine.
Background
The turbine is also called a steam turbine engine, is a rotary steam power device, high-temperature and high-pressure steam is sprayed onto blades after passing through a fixed nozzle to become accelerated airflow, so that a rotor provided with a blade row rotates and simultaneously does work outwards, the turbine is main equipment of a modern thermal power plant and is also used in the metallurgical industry, the chemical industry and ship power devices, moving blades and static blades are usually installed in the turbine, the static blades are static blades as the name implies, the static blades are static blades fixed on a baffle plate or a guide blade carrier ring, the static blades are used for guiding the steam outwards in the turbine and accelerating the steam, the static blades in a steam chamber (nozzle chamber) are called nozzles, the static blades are used as guide blades in a speed stage, and the steam is redirected into the next row of moving blades in the turbine, and are commonly installed in a static blade seat for use.
The common stator blade seat in the steam turbine is mainly annular, the outer side is generally provided with a bolt mounting hole, the inner side surface of the common stator blade seat is generally inserted with stator blades at equal angles to finish the mounting of the stator blades, so that in the actual machining process of the stator blade seat, the stator blade seat is generally clamped by a clamp and then is machined, in the actual machining process, the inner side surface of the stator blade seat is required to be machined, the outer side surface of the stator blade seat is also required to be mounted, the common clamp can generally clamp the outer side surface of the stator blade seat, and the inner side surface of the stator blade seat is required to be clamped by an inner supporting tool after the clamp is generally required to be disassembled due to the existence of the clamp, so that obvious influence on machining efficiency is obviously caused, and the inner ring and the outer ring cannot be clamped rapidly.
In the processing process of the stator blade seat, in order to prevent the stator blade seat from displacement during processing, a two-point and three-point positioning method is generally adopted to clamp and fix the stator blade seat, and as the diameter of the stator blade seat has various specifications, the clamp adopted in the prior art is a universal clamp, the clamping jaw is generally closed by adopting a screw feeding mode to realize clamping, and when the screw feeding is adopted, the speed is slower, the clamping part is generally blocked from being processed during actual processing, so that the clamp needs to be frequently loosened to adjust the position, but the rapid loosening and clamping process cannot be carried out during the screw feeding clamping, thereby influencing the actual processing efficiency.
Disclosure of Invention
The invention aims to provide a fixing clamp for processing a stator blade seat of a steam turbine, which aims to solve the problems in the background technology.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a mounting fixture is used in processing of steam turbine stator blade seat, includes the gas holder, the left end of gas holder is equipped with the fly leaf, the left end of fly leaf is equipped with the mount, the bottom equiangular distribution of fly leaf has first fixing base, the bottom of first fixing base is through pivot swing joint has the connecting rod, the other end of connecting rod is through pivot swing joint has the second fixing base, the one end fixedly connected with slider of second fixing base, the spout has been seted up to the inside equiangular degree of mount, the second fixing base passes through spout and slider and between movable joint, logical groove has been seted up to the inside of spout, the slider passes through logical groove fixedly connected with clamping component, the quantity of first fixing base, second fixing base, connecting rod, slider and clamping component is three and equiangular distribution in the bottom of fly leaf, be connected between mount and the external frame, the right-hand member fixed mounting of mount has the mount, the otic placode has been seted up to the lateral surface equiangular degree of mount.
Before the use, can accomplish the fixed of mount pad and then accomplish the fixed of gas holder through the otic placode at first and utilize fixing bolt, can fix between mount and the outside frame simultaneously, be connected gas holder and gas transmission device such as outside air pump simultaneously, place the stationary blade seat of waiting to process on the position between three clamping assembly simultaneously and accomplish the preparation work.
As a further technical scheme of the invention, the clamping assembly comprises a fixed box, the other end of the fixed box is fixedly connected with the sliding groove between the fixed box and the fixed box, the number of the fixed boxes is three, and the fixed boxes are distributed at the bottom end of the fixed frame at equal angles.
As a further technical scheme of the invention, the upper end and the lower end of the inner cavity of the fixed box are movably provided with movable rods, the other ends of the movable rods are fixedly provided with limiting iron blocks, the other ends of the movable rods penetrate through the front end of the fixed box, the front ends of the movable rods above are fixedly provided with outer clamping plates, and the front ends of the movable rods below are fixedly provided with inner clamping plates.
As a further technical scheme of the invention, the ends of the outer clamping plate and the inner clamping plate, which are relatively close to each other, are respectively provided with an anti-skid groove, the outer side surfaces of the movable rods are respectively movably sleeved with a reset spring, and the upper end and the lower end of the reset spring are respectively fixedly connected with the left end of the inner cavity of the fixed box and one end of the limiting iron block.
As a further technical scheme of the invention, electromagnets are fixedly arranged at the upper end and the lower end of the right side of the inner cavity of the fixed box, one end of each electromagnet can be adsorbed with one end of the limiting iron block, and the movable rod is L-shaped.
When the outer side surface of the stator blade seat is fixed, the electromagnet is not generating magnetic force at the moment through controlling to disconnect the power supply of the electromagnet positioned above, at the moment, the upper limit iron block and the electromagnet are not adsorbed any more, at the moment, the reset spring positioned above is restored to deform to drive the movable rod to move leftwards, at the moment, the outer clamping plate can move leftwards, the outer clamping plate is positioned on the outer side surface of the stator blade seat, the outer side surface of the stator blade seat is clamped by the relative close proximity of the three outer clamping plates to finish the outer side surface fixation, when the inner side surface of the stator blade seat is required to be fixed, the electromagnet power supply positioned above can be connected, at the moment, the electromagnet positioned above and the upper limit iron block are adsorbed, at the moment, the outer clamping plate is positioned on the right side to be restored to the initial position, at the same time, the inner clamping plate can move leftwards through disconnecting the electromagnet power supply positioned below, the inner clamping plate can be supported from the inner side surface of the stator blade seat by three points through the relative distance of the three inner clamping plates, and then the outer side surface of the stator blade seat is processed.
The outer side face and the inner side face corresponding to the stator blade seat are extended through the outer clamping plates and the inner clamping plates which are oppositely arranged, the outer side face and the inner side face corresponding to the stator blade seat are clamped through the outer clamping plates which are relatively close to each other or the inner clamping plates which are relatively far away from each other, the inner side face is supported from the outer side, the clamping of the outer side face and the supporting of the inner side face can be switched at any time, the problem that the outer side face and the inner side face are required to be clamped by different clamps in the machining process of a traditional clamp is avoided, the same clamp is used for fixing, the time for replacing the clamp during machining is remarkably reduced, and therefore the working efficiency during machining is improved.
As a further technical scheme of the invention, the top end of the right side of the air storage tank is provided with an air inlet pipe, the bottom end of the right side of the air storage tank is provided with an exhaust pipe, the bottom end of the exhaust pipe is fixedly communicated with an exhaust device, and the other end of the exhaust device is positioned on the front surface of the fixing frame.
As a further technical scheme of the invention, the air inlet pipe and the air outlet pipe are internally provided with one-way valves, and the directions of the valves are respectively inward conduction and outward conduction and inward conduction.
As a further technical scheme of the invention, a piston plate is movably sleeved in the air storage tank, the left end of the piston plate is fixedly connected with a piston rod positioned in the air storage tank, the left end of the piston rod penetrates through the left end of the air storage tank and is fixedly provided with a bearing, the inner side surface of the bearing is fixedly connected with one end of the movable plate, and a reset spring is fixedly connected between the right end of the piston plate and the right end of an inner cavity of the air storage tank.
When carrying out the centre gripping of stator blade seat, be linked together between accessible outside air pump and the intake pipe at first, and can carry the inside to the gas holder with high-pressure gas through the intake pipe through opening outside air pump, and give piston plate one end pressure, promote piston plate left side displacement simultaneously, and drive piston rod left side displacement, and drive movable plate's left side displacement, owing to be equipped with a plurality of connecting rods between movable plate and the mount, and the whole length of connecting rod is unchangeable, the slider only can the spout relative slip simultaneously, when the movable plate left side displacement results in, the connecting rod only can deflect outward this moment, and drive slider relative spout slip makes three clamping components keep away from relatively, otherwise be close to relatively that can realize three clamping components through opening the blast pipe with the high-pressure gas that is located inside the gas holder, thereby realize quick centre gripping process.
The high-pressure gas is converted into pressure by utilizing fluidity, the pressure is converted into left-right displacement power, the pressure is converted into outside tension and inside clamping force by utilizing conversion of a mechanical device, the problem that the feeding adjustment speed of a screw rod is slower in a traditional device is avoided, the problem that clamping and loosening efficiency of a clamp are slower when the position of a clamped workpiece is adjusted is solved, and the quick clamping of a stator blade seat can be realized quickly only by adjusting the amount of air entering the clamp, so that the clamping efficiency is remarkably improved, and the machining efficiency is further improved.
As a further technical scheme of the invention, the exhaust device comprises a gas pipe, the top end of the gas pipe is fixedly communicated with the bottom end of the exhaust pipe, the front end of the gas pipe is fixedly communicated with a pressurizing pipe, the front end of the pressurizing pipe is fixedly communicated with a pressurizing chamber, an impeller is movably arranged in the pressurizing chamber, and the front end of the pressurizing chamber is fixedly communicated with a spray head positioned on the front face of the fixing frame.
In the clamping process, when air in the air storage tank is led out, the air in the air storage tank can be led out through the exhaust pipe and enter the air delivery pipe, and the air entering the air delivery pipe enters the pressurizing chamber through the pressurization of the pressurizing pipe and pushes the impeller to rotate.
The high-speed flowing gas can directly act on the surface of the workpiece to remove scraps on the surface of the workpiece while clamping and supporting the workpiece, so that the scraps on the surface of the workpiece are prevented from influencing processing, an additional scrap removing device is not needed, resources are effectively reused, and the high-speed flowing gas is utilized to clamp the workpiece rapidly and clamp the workpiece respectively after the inner ring and the outer ring and remove the scraps.
The beneficial effects of the invention are as follows:
1. according to the invention, the outer side face and the inner side face of the corresponding stator blade seat are extended by controlling different outer clamping plates or inner clamping plates, the clamping of the outer side face from outside to inside and the supporting of the inner side face from inside to outside are realized by the relatively close outer clamping plates or the relatively far inner clamping plates, the clamping of the outer side face and the supporting of the inner side face can be switched at any time, the problem that the outer side face and the inner side face are required to be clamped by different clamping plates in the processing process of the traditional clamp is avoided, the fixation can be completed by using the same clamping plate, the time for replacing the clamping plates in the processing process is obviously reduced, and the working efficiency in the processing process is improved.
2. According to the invention, the fluidity of high-pressure gas is converted into pressure and the pressure is converted into power for left-right displacement, and the pressure is converted into tension to the outside and clamping force to the inside through the conversion of a mechanical device, so that the problem that the feeding adjustment speed of a screw rod is slower in a traditional device is avoided, and the problem that the clamping and loosening efficiency of a clamp is slower when the position of a clamped workpiece is adjusted is solved, the quick clamping of a stator blade seat can be realized quickly only by adjusting the amount of air entering, the clamping efficiency is obviously improved, and the machining efficiency is further improved.
3. According to the invention, the workpiece is clamped and supported through the high-speed flowing gas, and the scraps on the surface of the workpiece can be removed through the direct action of the high-speed flowing gas on the surface of the workpiece, so that the influence of the scraps on the surface of the workpiece on processing is avoided, and the additional scraps removing device is not needed to assist in recycling resources, and the high-speed flowing gas is utilized to realize the rapid clamping and the separate clamping of the inner ring and the outer ring and simultaneously remove the scraps, so that the device is suitable for popularization and use.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the front structure of the present invention;
FIG. 3 is a cross-sectional view showing the internal structure of the air tank of the present invention;
FIG. 4 is an isolated cross-sectional view of the internal structure of the exhaust apparatus of the present invention;
FIG. 5 is a schematic illustration of the cooperation of the structure of the holder and the structure of the clamping assembly of the present invention;
FIG. 6 is an exploded view of the structure of the holder of the present invention;
FIG. 7 is a schematic view of a clamping assembly according to the present invention;
fig. 8 is a cross-sectional view of the internal structure of the clamping assembly of the present invention.
In the figure: 1. a gas storage tank; 2. an air inlet pipe; 3. an exhaust pipe; 4. an exhaust device; 401. a gas pipe; 402. a pressurizing tube; 403. a pressurizing chamber; 404. an impeller; 405. a spray head; 5. a piston plate; 6. a piston rod; 7. a movable plate; 8. a bearing; 9. a return spring; 10. a fixing frame; 11. a chute; 12. a first fixing seat; 13. the second fixing seat; 14. a connecting rod; 15. a slide block; 16. a clamping assembly; 161. a fixed box; 162. a movable rod; 163. limiting iron blocks; 164. a return spring; 165. an electromagnet; 166. an outer clamping plate; 167. an inner clamping plate; 168. an anti-skid groove; 17. a mounting base; 18. ear plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1,5 and 6, in the embodiment of the invention, a fixing clamp for processing a turbine stator blade seat comprises a gas storage tank 1, a movable plate 7 is arranged at the left end of the gas storage tank 1, a fixing frame 10 is arranged at the left end of the movable plate 7, a first fixing seat 12 is fixedly arranged at the bottom end of the movable plate 7 at equal angles, a connecting rod 14 is movably connected to the bottom end of the first fixing seat 12 through a rotating shaft, a second fixing seat 13 is movably connected to the other end of the connecting rod 14 through a rotating shaft, one end of the second fixing seat 13 is fixedly connected with a sliding block 15, sliding grooves 11 are formed in the fixing frame 10 at equal angles, the second fixing seat 13 is movably clamped with the sliding grooves 11 through the sliding blocks 15, through grooves are formed in the sliding grooves 11, the sliding blocks 15 are fixedly connected with clamping components 16, the first fixing seat 12, the second fixing seat 13, the connecting rod 14, the sliding blocks 15 and the clamping components 16 are distributed at the bottom end of the movable plate 7 at equal angles, the fixing frame 10 is connected with an external frame, a mounting seat 17 is fixedly arranged at the right end of the fixing frame 10, and an ear plate 18 is formed at equal angles on the outer side surface of the mounting seat 17.
Before use, the fixing of the mounting seat 17 can be finished by the lug plate 18 and the fixing bolts so as to finish the fixing of the air storage tank 1, meanwhile, the fixing frame 10 and the external frame can be fixed, meanwhile, the air storage tank 1 is connected with an external air pump and other air delivery devices, and meanwhile, the stationary blade seat to be processed is placed at the position between the three clamping assemblies 16 to finish the preparation work.
As shown in fig. 5 to 8, the clamping assembly 16 includes a fixed case 161, the other end of the fixed case 161 is fixedly connected with the chute 11, the number of the fixed cases 161 is three, the fixed cases 161 are distributed at the bottom end of the fixed frame 10 at equal angles, the upper end and the lower end of the inner cavity of the fixed case 161 are movably provided with movable rods 162, the other end of each movable rod 162 is fixedly provided with a spacing iron block 163, the other end of each movable rod 162 penetrates through the front end of the fixed case 161, the front end of the movable rod 162 above is fixedly provided with an outer clamping plate 166, the front end of the movable rod 162 below is fixedly provided with an inner clamping plate 167, the relatively close ends of the outer clamping plate 166 and the inner clamping plate 167 are respectively provided with an anti-skid groove 168, the outer side surface of the movable rod 162 is movably sleeved with a return spring 164, the upper end and the lower end of the return spring 164 are respectively fixedly connected with the left end of the inner cavity of the fixed case 161 and one end of the spacing iron block 163, the upper end and the lower end of the right side of the fixed case 161 are fixedly provided with electromagnets 165, one end of the electromagnets 165 can be adsorbed with one end of the spacing iron block 163, and the movable rod 162 is L-shaped.
First embodiment:
When the outer side surface of the stator blade seat is fixed, the electromagnet 165 is not attracted by controlling to be powered off to the electromagnet 165 located above, at the moment, the electromagnet 165 is not attracted by the electromagnet 165, at the moment, the upper limit iron block 163 and the electromagnet 165 are not attracted, at the moment, the upper limit iron block 163 is restored to deform to drive the movable rod 162 to move leftwards, at the moment, the outer clamping plate 166 can move leftwards, the outer clamping plate 166 is located on the outer side surface of the stator blade seat, the outer side surface of the stator blade seat is clamped by the relative close proximity of the three outer clamping plates 166 to finish the fixation of the outer side surface, when the inner side surface of the stator blade seat is required to be fixed, the electromagnet 165 located above can be powered on, at the moment, the electromagnet 165 located above and the limit iron block 163 located above are adsorbed by the electromagnet 165 located on the upper limit iron block 163 to the right side, at the moment, at the same time, the inner clamping plate 167 can be displaced leftwards, the inner clamping plate 167 can be supported from the inner side surface of the stator blade seat by the relative distance of the three inner clamping plates 167 to finish the fixation of the outer side surface of the stator blade seat, and further processing the outer side surface of the stator blade seat is finished.
The outer side face and the inner side face of the corresponding stator blade seat are extended through the outer clamping plate 166 and the inner clamping plate 167 which are oppositely arranged by controlling the different outer clamping plates 166 or the inner clamping plates 167, the clamping of the outer side face from outside to inside and the supporting of the inner side face from inside to outside are realized through the outer clamping plates 166 which are relatively close to each other or the inner clamping plates 167 which are relatively far away from each other, the clamping of the outer side face and the supporting of the inner side face can be switched at any time, the problem that the outer side face and the inner side face are clamped by different clamps in the traditional clamp in the machining process is avoided, the fixation can be completed by using the same clamp, the time for replacing the clamp in the machining process is remarkably reduced, and the working efficiency in the machining process is improved.
As shown in fig. 1 to 3, the top on the right side of the air storage tank 1 is provided with the air inlet pipe 2, the bottom on the right side of the air storage tank 1 is provided with the exhaust pipe 3, the bottom fixed connection of the exhaust pipe 3 is provided with the exhaust device 4, the other end of the exhaust device 4 is located on the front of the fixing frame 10, the inside of the air inlet pipe 2 and the exhaust pipe 3 is provided with the check valve, the directions of the valve are respectively inward conduction and outward conduction and inward conduction, the piston plate 5 is movably sleeved in the air storage tank 1, the left end of the piston plate 5 is fixedly connected with the piston rod 6 located in the air storage tank 1, the left end of the piston rod 6 penetrates through the left end of the air storage tank 1 and is fixedly provided with the bearing 8, the inner side surface of the bearing 8 is fixedly connected with one end of the movable plate 7, and the reset spring 9 is fixedly connected between the right end of the piston plate 5 and the right end of the inner cavity of the air storage tank 1.
Second embodiment:
When the static blade seat is clamped, the external air pump is communicated with the air inlet pipe 2, high-pressure air can be conveyed to the air storage tank 1 through the air inlet pipe 2 by opening the external air pump, one end of the piston plate 5 is pressed, the piston plate 5 is pushed to move leftwards, the piston rod 6 is driven to move leftwards, the movable plate 7 is driven to move leftwards, the plurality of connecting rods 14 are arranged between the movable plate 7 and the fixed frame 10, the whole length of the connecting rods 14 is unchanged, meanwhile, the sliding block 15 only slides relative to the sliding groove 11, so that when the movable plate 7 moves leftwards, the connecting rods 14 can only deflect outwards, the sliding block 15 is driven to slide relative to the sliding groove 11, the three clamping assemblies 16 are relatively far away, otherwise, the high-pressure air positioned in the air storage tank 1 is guided out by opening the exhaust pipe 3, and the three clamping assemblies 16 can be relatively close, and therefore the rapid clamping process is realized.
The high-pressure gas is converted into pressure by utilizing fluidity, the pressure is converted into left-right displacement power, the pressure is converted into outside tension and inside clamping force by utilizing conversion of a mechanical device, the problem that the feeding adjustment speed of a screw rod is slower in a traditional device is avoided, the problem that clamping and loosening efficiency of a clamp are slower when the position of a clamped workpiece is adjusted is solved, and the quick clamping of a stator blade seat can be realized quickly only by adjusting the amount of air entering the clamp, so that the clamping efficiency is remarkably improved, and the machining efficiency is further improved.
As shown in fig. 4, the exhaust device 4 includes an air pipe 401, the top end of the air pipe 401 is fixedly communicated with the bottom end of the exhaust pipe 3, the front end of the air pipe 401 is fixedly communicated with a pressurizing pipe 402, the front end of the pressurizing pipe 402 is fixedly communicated with a pressurizing chamber 403, an impeller 404 is movably mounted in the pressurizing chamber 403, and the front end of the pressurizing chamber 403 is fixedly communicated with a nozzle 405 positioned on the front face of the fixing frame 10.
Third embodiment:
During clamping, when air in the air storage tank 1 is led out, the air in the air storage tank 1 can be led out through the exhaust pipe 3 and enter the air delivery pipe 401, and air entering the air delivery pipe 401 enters the pressurizing chamber 403 through pressurization of the pressurizing pipe 402 and pushes the impeller 404 to rotate, and when the impeller 404 rotates, air flow flowing at high speed can be dispersed and directly led out through the nozzle 405 to act on the surface of a workpiece to clean machining scraps.
The high-speed flowing gas can directly act on the surface of the workpiece to remove scraps on the surface of the workpiece while clamping and supporting the workpiece, so that the scraps on the surface of the workpiece are prevented from influencing processing, an additional scrap removing device is not needed, resources are effectively reused, and the high-speed flowing gas is utilized to clamp the workpiece rapidly and clamp the workpiece respectively after the inner ring and the outer ring and remove the scraps.
Working principle and using flow:
Before use, the fixing of the mounting seat 17 can be finished through the lug plate 18 and the fixing bolts so as to finish the fixing of the air storage tank 1, meanwhile, the fixing frame 10 and the external frame can be fixed, meanwhile, the air storage tank 1 is connected with an external air pump and other air delivery devices, and meanwhile, the stationary blade seat to be processed is placed at the position among the three clamping assemblies 16 to finish the preparation work;
When clamping the stator blade seat, the external air pump is communicated with the air inlet pipe 2, the external air pump is started to convey high-pressure air into the air storage tank 1 through the air inlet pipe 2, one end of the piston plate 5 is pressed, the piston plate 5 is pushed to move leftwards, the piston rod 6 is driven to move leftwards, the movable plate 7 is driven to move leftwards, the plurality of connecting rods 14 are arranged between the movable plate 7 and the fixed frame 10, the whole length of the connecting rods 14 is unchanged, meanwhile, the sliding block 15 only slides relative to the sliding groove 11, so that when the movable plate 7 moves leftwards, the connecting rods 14 only deflect outwards, the sliding block 15 is driven to slide relative to the sliding groove 11, so that three clamping assemblies 16 are relatively far away, otherwise, the high-pressure air in the air storage tank 1 is guided out by opening the exhaust pipe 3, and the three clamping assemblies 16 are relatively close to each other, so that the quick clamping process is realized;
When the outer side surface of the stator blade seat is fixed, the electromagnet 165 is not attracted by controlling to be disconnected into the power supply of the electromagnet 165 positioned above, at the moment, the electromagnet 165 is not attracted between the electromagnet 165 and the limiting iron block 163 positioned above, at the moment, the reset spring 164 positioned above is restored to deform to drive the movable rod 162 to move leftwards, at the moment, the outer clamping plate 166 can move leftwards, the outer clamping plate 166 is positioned on the outer side surface of the stator blade seat, the outer side surface of the stator blade seat is clamped by the relative close to the three outer clamping plates 166 to finish the fixation of the outer side surface, when the inner side surface of the stator blade seat is required to be fixed, the electromagnet 165 positioned above can be connected, at the moment, the electromagnet 165 positioned above and the limiting iron block 163 positioned above can finish the attraction, at the moment, the outer clamping plate 166 is positioned rightwards to be restored to the initial position, at the same time, the inner clamping plate 167 can move leftwards, and the inner side surface of the stator blade seat can be supported from the inner side surface by the relative far away from the three inner clamping plates 167 to finish the fixation of the outer side surface of the stator blade seat, and further processing the outer side surface of the stator blade seat is finished;
During clamping, when air in the air storage tank 1 is led out, the air in the air storage tank 1 can be led out through the exhaust pipe 3 and enter the air delivery pipe 401, and air entering the air delivery pipe 401 enters the pressurizing chamber 403 through pressurization of the pressurizing pipe 402 and pushes the impeller 404 to rotate, and when the impeller 404 rotates, air flow flowing at high speed can be dispersed and directly led out through the nozzle 405 to act on the surface of a workpiece to clean machining scraps.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a stationary fixture for processing of steam turbine stator blade seat, includes gas holder (1), its characterized in that: the left end of the air storage tank (1) is provided with a movable plate (7), the left end of the movable plate (7) is provided with a fixed frame (10), the bottom end of the movable plate (7) is fixedly provided with a first fixed seat (12) at equal angles, the bottom end of the first fixed seat (12) is movably connected with a connecting rod (14) through a rotating shaft, the other end of the connecting rod (14) is movably connected with a second fixed seat (13) through the rotating shaft, one end of the second fixed seat (13) is fixedly connected with a sliding block (15), the inside of the fixed frame (10) is provided with a sliding groove (11) at equal angles, the second fixed seat (13) is movably clamped with the sliding groove (11) through the sliding block (15), the sliding block (15) is fixedly connected with a clamping component (16) through the sliding groove, the numbers of the first fixed seat (12), the second fixed seat (13), the connecting rod (14), the sliding block (15) and the clamping component (16) are all three and are distributed at the bottom end of the movable plate (7) at equal angles, the fixed frame (10) is connected with the outside, the right end of the fixed frame (10) is provided with a fixed frame (17), the outside of the fixed frame (17) is provided with an outside seat (17);
The clamping assembly (16) comprises a fixed box (161), the other end of the fixed box (161) is fixedly connected with the sliding groove (11), the number of the fixed boxes (161) is three, and the fixed boxes are distributed at the bottom end of the fixing frame (10) at equal angles;
The movable rod (162) is movably arranged at the upper end and the lower end of the inner cavity of the fixed box (161), the limit iron block (163) is fixedly arranged at the other end of the movable rod (162), the other end of the movable rod (162) penetrates through the front end of the fixed box (161), the outer clamping plate (166) is fixedly arranged at the front end of the movable rod (162) above, and the inner clamping plate (167) is fixedly arranged at the front end of the movable rod (162) below;
The anti-skid grooves (168) are formed in the ends, relatively close to each other, of the outer clamping plate (166) and the inner clamping plate (167), the outer side faces of the movable rods (162) are movably sleeved with second reset springs (164), and the upper end and the lower end of each second reset spring (164) are fixedly connected with the left end of the inner cavity of the fixed box (161) and one end of the limiting iron block (163) respectively;
An electromagnet (165) is fixedly arranged at the upper end and the lower end of the right side of the inner cavity of the fixed box (161), one end of the electromagnet (165) is adsorbed with one end of the limiting iron block (163), and the movable rod (162) is L-shaped;
an air inlet pipe (2) is arranged at the top end of the right side of the air storage tank (1), an exhaust pipe (3) is arranged at the bottom end of the right side of the air storage tank (1), an exhaust device (4) is fixedly communicated with the bottom end of the exhaust pipe (3), and the other end of the exhaust device (4) is positioned on the front face of a fixing frame (10);
The inside of the air inlet pipe (2) and the inside of the air outlet pipe (3) are respectively provided with one-way valves, and the directions of the valves are inward conduction and outward conduction as well as outward conduction and inward conduction respectively;
The inside activity of gas holder (1) has cup jointed piston board (5), the left end fixedly connected with of piston board (5) is located inside piston rod (6) of gas holder (1), the left end of piston rod (6) runs through the left end of gas holder (1) and fixedly mounted has bearing (8), the medial surface of bearing (8) and the one end fixed connection of fly leaf (7), fixedly connected with first reset spring (9) between the right-hand member of piston board (5) and the inner chamber right-hand member of gas holder (1).
2. The stationary fixture for machining a stator blade carrier of a steam turbine according to claim 1, wherein: the exhaust device (4) comprises an air pipe (401), the top end of the air pipe (401) is fixedly communicated with the bottom end of the exhaust pipe (3), the front end of the air pipe (401) is fixedly communicated with a pressurizing pipe (402), the front end of the pressurizing pipe (402) is fixedly communicated with a pressurizing chamber (403), an impeller (404) is movably mounted in the pressurizing chamber (403), and a spray head (405) located on the front face of the fixing frame (10) is fixedly communicated with the front end of the pressurizing chamber (403).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210504928.8A CN114770154B (en) | 2022-05-10 | 2022-05-10 | Fixing clamp for processing stator blade seat of steam turbine |
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| CN202210504928.8A CN114770154B (en) | 2022-05-10 | 2022-05-10 | Fixing clamp for processing stator blade seat of steam turbine |
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| CN114770154B true CN114770154B (en) | 2024-07-16 |
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| CN116280526B (en) * | 2023-02-15 | 2024-05-28 | 宁夏金世纪包装印刷有限公司 | Four-claw shoe cloth inserting machine |
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| CN109593943A (en) * | 2019-01-25 | 2019-04-09 | 王康 | A kind of heat treatment quenching equipment for rolling element |
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