Cutting clamp for turbine impeller

Abstract

The utility model relates to the technical field of turbine impeller production, in particular to a turbine impeller cutting clamp which comprises a clamp base, and two rotating sliding grooves are formed in the surface of the top end of the clamp base. Firstly, the turbine impeller is installed on the surface of the cutting clamp and is controlled to extend and abut to achieve the purpose of fixing the impeller, then cutting machining is conducted, and in the machining process, a driving motor operates to drive a transmission screw to rotate so as to drive a threaded sliding block and a clamp base on the top of the threaded sliding block to move in a clamp sliding groove; a transmission screw rotates in a limiting shaft to complete matched adjustment of the position, meanwhile, a sliding base in a rotating sliding groove in the surface of a clamp base moves on a fixed sliding rail, air is pumped through a pressurizing air pump to be pressurized, and then the air penetrates through a switching base to be sprayed out of an air spraying opening and a second spraying head by being aligned with an impeller. And chippings generated by cutting are cleaned at different angles.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam turbine impeller production technical field, concretely relates to a kind of cutting clamps of steam turbine impeller. BACKGROUND

[0002] Steam turbine is also called steam turbine engine, is a kind of rotary steam power device, high temperature and high pressure steam is injected to blade after becoming accelerated airflow through fixed nozzle, make the rotor that is equipped with blade row rotate, simultaneously do work to outside, steam turbine is the main equipment of modern thermal power plant, also used in metallurgical industry, chemical industry, ship power device, and impeller refers to the wheel disc that is equipped with moving blade, is the component part of impulse steam turbine rotor, can also refer to the total of wheel disc and rotating blade installed on it, in steam turbine impeller production process, it needs to be polished and cut.

[0003] The cutting tool fixture of steam turbine impeller disclosed in publication No. CN221755753U can smoothly drive the worm gear to rotate through the motor, worm gear, worm gear, spiral groove and jaw, otherwise, the worm gear is difficult to drive the worm gear to rotate, and the motor power source is set, which can further avoid the back-off phenomenon of the jaw, and ensure the stable clamping of the jaw on the steam turbine impeller, but the device can only blow air to the impeller in a fixed direction, which is easy to leave debris in the dead angle. Therefore, we propose a kind of cutting clamp of steam turbine impeller. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model provides a kind of cutting clamp of steam turbine impeller.

[0005] The utility model solves the technical scheme that it adopts is a kind of cutting clamp of steam turbine impeller, including fixture base, the top surface of the fixture base is equipped with two rotating sliding slots, the recess bottom of each rotating sliding slot is fixedly connected with fixed slide rail in the inside of fixture base, the surface of fixed slide rail is slidably connected with sliding base, the top of sliding base is fixedly connected with adapter base, and the surface of adapter base penetrates through rotating sliding slot, the top of adapter base is installed with air jet, and the bottom of air jet is connected with the top of pressure gas pump through air pipe penetration;

[0006] The top of the fixture base is equipped with fixture sliding slot in the middle, the recess of the fixture sliding slot is installed with drive motor on one side, the power output end of drive motor is connected with transmission screw through adapter, the outer periphery of transmission screw is slidably connected with screw block, the end of transmission screw away from drive motor is rotatably connected with the center of limiting shaft, and the top of screw block is fixedly connected with clamp seat.

[0007] By adopting the technical scheme, firstly, the steam turbine impeller is installed on the surface of the cutting fixture and controlled to extend to abut to fix the impeller, then cutting is carried out, in the process of machining, the driving motor is driven to rotate the transmission screw rod to drive the threaded sliding block and the fixture seat on the top thereof to displace in the inside of the fixture sliding groove, the transmission screw rod rotates in the inside of the limiting shaft to complete the position matching adjustment, meanwhile, the sliding base in the rotating sliding groove on the surface of the fixture base displaces on the fixed sliding rail, air is extracted by the pressurizing air pump, then the air is sprayed from the jet port and the second jet head through the adapter base to the impeller, and the cutting debris is cleaned.

[0008] Specifically, the air pipe connected through the jet port is limited by the limiting frame at the bottom end of the adapter base.

[0009] By adopting the technical scheme, the movement range of the air pipe is limited by the limiting frame fixed on the side wall of the adapter base, so that the operation of the equipment is not affected in the process of rotation.

[0010] Specifically, the side wall of the pressurizing air pump is connected with the corrugated expansion pipe.

[0011] By adopting the technical scheme, the pressurizing air pump can be connected with the air inlet of the side wall of the fixture base through the corrugated expansion pipe.

[0012] Specifically, the limiting piece is fixed on both sides of the threaded sliding block and slidably connected in the side wall of the fixture sliding groove.

[0013] By adopting the technical scheme, the displacement space of the threaded sliding block is limited by the limiting piece matched with the threaded transmission structure, so that the threaded sliding block can only slide in the fixture sliding groove.

[0014] Specifically, the top end of the fixture seat is provided with the PLC-controlled cutting fixture.

[0015] By adopting the technical scheme, the steam turbine impeller is clamped and fixed by the PLC-controlled cutting fixture.

[0016] Specifically, the rotating sliding groove away from the pressurizing air pump at the top end of the fixture base is provided with the second jet head with the same structure.

[0017] By adopting the technical scheme, the steam turbine impeller being machined is cleaned of debris by moving the second jet head at the fixture base.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The technical scheme of the present application firstly installs the steam turbine impeller on the surface of the cutting fixture and controls the extension to abut to realize the purpose of fixing the impeller, then cutting is carried out, in the process of machining, the driving motor is driven to rotate the transmission screw rod to drive the threaded sliding block and the fixture seat on the top thereof to displace in the inside of the fixture sliding groove, the transmission screw rod rotates in the inside of the limiting shaft, the position is adjusted, meanwhile, the sliding base in the rotating sliding groove on the surface of the fixture base displaces on the fixed sliding rail, air is extracted by the pressurizing air pump, and then the air is sprayed from the jet port and the second nozzle through the adapter base to the impeller, so that the cutting debris is cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application is further described below in combination with the drawings and embodiments.

[0021] Figure 1 It is an isometric view of the present application;

[0022] Figure 2 It is a structure of the present application Figure 1 It is a structure schematic view of the A place in the middle;

[0023] Figure 3 It is a structure connection schematic view of the fixture seat of the present application;

[0024] In the drawings: 1, fixture base; 2, rotating sliding groove; 3, fixed sliding rail; 4, sliding base; 5, adapter base; 6, jet port; 7, pressurizing air pump; 8, fixture sliding groove; 9, driving motor; 10, transmission screw rod; 11, threaded sliding block; 12, limiting shaft; 13, fixture seat; 14, cutting fixture; 15, second nozzle. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0026] Please refer to Figures 1-3 The present application provides a technical scheme: a cutting fixture for steam turbine impeller, comprising a fixture base 1, two rotating sliding grooves 2 are formed on the top surface of the fixture base 1, a fixed sliding rail 3 is fixedly connected to the inside of the fixture base 1 at the bottom of the groove of each rotating sliding groove 2, a sliding base 4 is slidably connected to the surface of the fixed sliding rail 3, an adapter base 5 is fixedly connected to the top end of the sliding base 4, and the adapter base 5 penetrates through the surface of the rotating sliding groove 2, a jet port 6 is installed on the top end of the adapter base 5, and the bottom end of the jet port 6 is connected to the top end of a pressurizing air pump 7 through an air pipe.

[0027] The top end of the clamp base 1 is provided with a clamp sliding groove 8 in the middle, one side of the groove is provided with a driving motor 9, the power output end of the driving motor 9 is connected with a transmission screw 10 through an adapter, the outer periphery of the transmission screw 10 is slidably connected with a threaded sliding block 11, the end of the transmission screw 10 away from the driving motor 9 is rotatably connected with the center of a limiting shaft 12, and the top end of the threaded sliding block 11 is fixedly connected with a clamp seat 13.

[0028] In use, first, the steam turbine impeller is installed on the surface of the cutting clamp 14 and controlled to extend to abut to fix the impeller, then cutting is carried out, in the process of cutting, the driving motor 9 is driven to rotate the transmission screw 10 to drive the threaded sliding block 11 and the clamp seat 13 on the top of the threaded sliding block 11 to displace in the clamp sliding groove 8, the transmission screw 10 rotates in the limiting shaft 12 to complete the position adjustment, meanwhile, the sliding base 4 in the rotating sliding groove 2 on the surface of the clamp base 1 displaces on the fixed sliding rail 3, air is extracted by the pressurizing air pump 7, then the air is pressurized and sprayed from the air outlet 6 and the second nozzle 15 through the adapter base 5 to clean the cutting debris.

[0029] As shown in the figure, the air pipe connected through the air outlet 6 is limited by the limiting frame at the bottom end of the adapter base 5.

[0030] In use, the limiting frame fixed on the side wall of the adapter base 5 limits the activity range of the air pipe to avoid affecting the operation of the equipment in the rotating process.

[0031] As shown in the figure, the side wall of the pressurizing air pump 7 is connected with a corrugated expansion pipe.

[0032] In use, the corrugated expansion pipe with extension is used to make the pressurizing air pump 7 communicate with the air inlet in the side wall of the clamp base 1.

[0033] As shown in the figure, the two sides of the threaded sliding block 11 are fixed with limiting pieces and slidably connected in the side wall of the clamp sliding groove 8.

[0034] In use, the limiting pieces are used to limit the displacement space of the threaded sliding block 11 in cooperation with the threaded transmission structure, so that the threaded sliding block 11 can only slide in the clamp sliding groove 8.

[0035] As shown in the figure, the top end of the clamp seat 13 is provided with a PLC controlled cutting clamp 14.

[0036] In use, the steam turbine impeller is clamped and fixed by the PLC controlled cutting clamp 14.

[0037] As shown in the figure, the rotating sliding groove 2 at the top end of the clamp base 1 away from the pressurizing air pump 7 is provided with a second nozzle 15 with the same structure.

[0038] In use, the second nozzle 15 is moved at the fixture base 1 to clean the debris of the turbine wheel being processed.

[0039] The working principle and use process of the utility model are as follows: firstly, the turbine wheel is installed on the surface of the cutting fixture 14 and controlled to extend to abut to realize the purpose of fixing the wheel, then cutting is carried out, in the process of processing, the driving motor 9 is operated to drive the transmission screw rod 10 to rotate to drive the threaded sliding block 11 and the fixture base 13 on the top thereof to displace in the inside of the fixture sliding groove 8, the transmission screw rod 10 rotates in the inside of the limiting shaft 12 to complete the cooperation adjustment of position, at the same time, the sliding base 4 in the surface rotating sliding groove 2 of the fixture base 1 displaces on the fixed sliding rail 3, air is extracted and pressurized through the pressurizing air pump 7, then the air is sprayed from the air outlet 6 and the second nozzle 15 through the adapter base 5 to clean the debris generated in cutting.

[0040] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting jig for a turbine wheel, characterized by, Including the clamp base (1), the top end surface of the clamp base (1) is provided with two rotating sliding grooves (2), the groove bottom end of each rotating sliding groove (2) is fixedly connected with a fixed sliding rail (3) in the inside of the clamp base (1), the surface of the fixed sliding rail (3) is slidably connected with a sliding base (4), the top end of the sliding base (4) is fixedly connected with an adapter base (5), and the adapter base (5) penetrates through the surface of the rotating sliding groove (2), the top end of the adapter base (5) is penetratedly installed with a gas jet (6), and the bottom end of the gas jet (6) is connected to the top end of a pressurized air pump (7) through a gas pipe; The top end of the clamp base (1) is provided with a clamp sliding groove (8) in the middle, a drive motor (9) is mounted on one side in the groove of the clamp sliding groove (8), the power output end of the drive motor (9) is connected with a transmission screw (10) through an adapter, the outer periphery of the transmission screw (10) is slidably connected with a threaded sliding block (11), and the end of the transmission screw (10) away from the drive motor (9) is rotatably connected to the center of a limiting shaft (12), and the top end of the threaded sliding block (11) is fixedly connected with a clamp seat (13).

2. A cutting fixture for a turbine wheel according to claim 1, wherein The gas pipe connected through the gas jet (6) is limited by the limiting frame at the bottom end of the adapter base (5).

3. A cutting fixture for a turbine wheel according to claim 1, wherein The side wall of the pressurized air pump (7) is penetratedly connected with a corrugated expansion pipe.

4. A cutting fixture for a turbine wheel according to claim 1, wherein The threaded sliding block (11) is fixedly provided with a limiting piece on both sides and is slidably connected to the side wall of the clamp sliding groove (8).

5. A cutting fixture for a turbine wheel according to claim 1, wherein The top end of the clamp seat (13) is provided with a PLC-controlled cutting clamp (14).

6. A cutting fixture for a turbine wheel according to claim 1, wherein The rotating sliding groove (2) away from the pressurized air pump (7) at the top end of the clamp base (1) is provided with a second nozzle (15) with the same structure.

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