CN216228174U - Turbine blade electromagnetic clamp - Google Patents

Abstract

The utility model discloses an electromagnetic fixture for a turbine blade, which belongs to the technical field of blade fixtures and comprises a base, wherein electromagnetic clamping devices are arranged on two sides of the upper end surface of the base, a positioning block is fixedly connected to the upper end surface of the base, each electromagnetic clamping device comprises a first fixed seat, a first electromagnet, a second fixed seat, a push block and a second electromagnet, the first fixed seat is fixedly connected to the side edge of the base, the first electromagnet is installed in the first fixed seat, the second fixed seat is fixedly connected to the middle part of the base, the push block is slidably installed in the second fixed seat, the second electromagnet is fixedly connected to one end surface of the push block and is adjacent to the first electromagnet, the problem that the blade is clamped at a low speed by manually adjusting a positioning stop iron by a worker is solved, and meanwhile, the clamping is stable and efficient, and the clamping damage to the surface of a workpiece is prevented, and the scrap iron generated by processing is cleaned.

Description

Turbine blade electromagnetic clamp

Technical Field

The utility model belongs to the technical field of blade clamps, and particularly relates to an electromagnetic clamp for a turbine blade.

Background

The blades are the most core parts of the steam turbine, the blades directly determine the working efficiency of the steam turbine equipment, and when the steam turbine works, steam from the static blades is converted into mechanical energy for pushing a steam turbine generator rotor to rotate in the moving blades, so that the generator is driven to generate power or other equipment is driven to rotate.

However, the following problems exist in the process of producing the turbine blade by a plurality of blade manufacturers at present:

1. in the course of working of blade, use the manual mode of locking to the location stop iron of workman to come to press from both sides tightly the blade root usually, this mode is wasted time and energy, greatly reduced the production efficiency of blade, this mode is simultaneously because the grinding of cutter or mill easily cause the not hard up of centre gripping in the course of working, can't guarantee the blade centre gripping of high stability.

2. Because produce iron fillings easily in the course of working of blade, traditional deironing bits mode is mostly the manual clearance of brush, and this mode clearance effect is unsatisfactory, produces easily when wasting time and energy and leaves over, arouses iron fillings to adsorb skidding, the insecure scheduling problem of centre gripping that arouses on the clamping face easily.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the electromagnetic clamp for the turbine blade, which can rapidly clamp the blade and remove and clean scrap iron generated by milling through high-pressure gas, greatly improves the clamping precision and efficiency and saves the labor cost of workers.

The technical scheme is as follows:

the utility model provides a steam turbine blade electromagnetism anchor clamps, includes the base, the up end both sides of base all are provided with electromagnetism clamping device, the up end fixedly connected with locating piece of base, electromagnetism clamping device is including first fixing base, first electro-magnet, second fixing base, ejector pad, second electro-magnet, first fixing base fixed connection is on the side of base, first electro-magnet is installed in first fixing base, second fixing base fixed connection is at the base middle part, ejector pad slidable mounting is in the second fixing base, second electro-magnet fixed connection is adjacent with first electro-magnet at an end face of ejector pad.

Furthermore, the first electromagnet is embedded and fixed in the first fixed seat, and the second electromagnet and the first electromagnet are arranged in a manner that magnetic poles are opposite.

Furthermore, a protection sheet is welded on the other end face of the push block to prevent the workpiece from being clamped.

Further, the protective sheet is made of aluminum.

Furthermore, a fixed cylinder is fixedly connected above the positioning block, and the fixed cylinder is in a hollow design.

Furthermore, a high-pressure gas nozzle penetrates through the fixed cylinder.

In conclusion, the utility model has the following beneficial effects:

realize quick centre gripping to the blade through electromagnetism clamping device circular telegram back, compare the mode that current workman was manual screwed up the location stop iron and is held the blade, have efficient, fast, the big advantage of clamp force, aluminium system protection piece has been add to the one end of ejector pad in electromagnetism clamping device simultaneously, has effectively protected workpiece surface, has avoided traditional iron system clamping face and workpiece surface rigid contact.

Secondly, the high-pressure gas shower nozzle has been increased above the locating piece, through the high-pressure gas shower nozzle after blade processing effectively get rid of the iron fillings on the anchor clamps fast and efficiently, can effectively prevent iron fillings to adsorb the skid that arouses on the clamping face, centre gripping insecure scheduling problem.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of an electromagnetic clamping device of the present invention;

in the figure, the device comprises a base 1, a base 2, an electromagnetic clamping device 3, a positioning block 4, a fixed cylinder 5, a high-pressure gas spray head 21, a first fixed seat 22, a first electromagnet 23, a second electromagnet 24, a push block 25, a second fixed seat 26 and a protection sheet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather construed as embodying the utility model in accordance with the principles of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Please refer to fig. 1 to 2, an electromagnetic fixture for a steam turbine blade comprises a base 1, wherein electromagnetic clamping devices 2 are arranged on two sides of the upper end surface of the base 1, a positioning block 3 is fixedly connected to the upper end surface of the base 1, the positioning of the root of the blade is realized through the positioning block 3, and then the electromagnetic clamping devices 2 which are symmetrically arranged are clamped, so as to ensure the rapid clamping of the blade. The electromagnetic clamping device 2 comprises a first fixed seat 21, a first electromagnet 22, a second fixed seat 25, a push block 24 and a second electromagnet 23; the first fixed seat 21 is fixed on the side edge of the base 1 through welding, and the first electromagnet 22 is installed in the first fixed seat 21, so that the body is fixed when the first electromagnet 22 is influenced by magnetic force; second fixing base 25 fixed connection is in base 1 middle part, ejector pad 24 slidable mounting is in second fixing base 25, second electro-magnet 23 is adjacent with first electro-magnet 22 through industrial glue or fixed connection at an end face of ejector pad 24, and then can make things convenient for when magnetic force influences each other between second electro-magnet 23 and first electro-magnet 22, ejector pad 24 can slide in second fixing base 25 by the atress, above-mentioned first electro-magnet 22, second electro-magnet 23 are and come the circular telegram through external power supply and produce magnetic force.

The first electromagnet 22 is embedded and fixed in the first fixed seat 21, the second electromagnet 23 and the first electromagnet 22 are arranged in a magnetic pole opposite mode, so that the magnetic poles can generate reaction force relatively when the two electromagnets are electrified conveniently, the first electromagnet 22 is fixed, the second electromagnet 23 is pushed to move by magnetic force in the opposite direction, and then the push block 24 is driven to slide in the second fixed seat 25, and the blade is tightened.

The other end face of the push block 24 is welded with a protection sheet 26 to prevent clamping the workpiece, so that the situation that the push block 24 is impacted to damage the root of the blade due to instantaneous overlarge thrust when the electromagnet is electrified is avoided.

The protective sheet 26 is made of aluminum, so that hard contact between the clamping surface and the surface of the workpiece is ensured, and the surface of the workpiece can be effectively protected by adopting a material with lower hardness.

The top fixedly connected with solid fixed cylinder 4 of locating piece 3, solid fixed cylinder 4 is the cavity design, and then conveniently wears to establish installation high-pressure gas shower nozzle 5, and when high-pressure gas shower nozzle 5 communicates the trachea, can extend out from this solid fixed cylinder 4 and spout and remove iron fillings.

Wear to be equipped with high-pressure gas shower nozzle 5 in the solid fixed cylinder 4, high-pressure gas shower nozzle 5 is through external air pump drive, and then is convenient for get rid of the high-pressure injection of adsorbed iron fillings on the clamping face of protection piece 26 and locating piece 3.

The working principle is as follows: when the blade needs to be clamped, the root of the blade is horizontally placed on the base 1, the blade is pushed to enable the root to abut against the working surface of the positioning block 3, the external power supply is turned on, the first electromagnet and the second electromagnet 23 are electrified to generate magnetic force, the two electromagnet poles are arranged oppositely, the first electromagnet 22 is fixed in the first fixing seat 21 and does not move, the generated thrust pushes the second electromagnet 23 to move towards the blade, the pushing block 24 is driven to slide in the second fixing seat 25, when the pushing blocks 24 on the two sides of the blade abut against the blade, the clamping work is finished, and the clamping mode is high in speed and stable and reliable in clamping;

treat when blade processing accomplishes, the deenergization, take out the blade body after, open external air pump and make 5 work of high-pressure gas shower nozzle, the staff utilizes high-pressure gas shower nozzle 5 to get rid of the iron fillings of the protection piece 26 on locating piece 3, two ejector pads 24, clearance when can effectively avoiding traditional manual cleaning leaves over the clamping that causes and skids, presss from both sides tight inaccurate scheduling problem. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a steam turbine blade electromagnetism anchor clamps, includes base (1), its characterized in that: the utility model discloses a push-up block, including base (1), electromagnetic clamping device (2), second fixing base (25), ejector pad (24), second electro-magnet (23), electromagnetic clamping device (2) is including first fixing base (21), first electro-magnet (22), second fixing base (25), push block (24), upper end fixedly connected with locating piece (3) of base (1), first fixing base (21) fixed connection is on the side of base (1), install in first fixing base (21) first electro-magnet (22), second fixing base (25) fixed connection is at base (1) middle part, push block (24) slidable mounting is in second fixing base (25), second electro-magnet (23) fixed connection is adjacent with first electro-magnet (22) at a terminal surface of push block (24).

2. The steam turbine blade electromagnetic clamp of claim 1, wherein: the first electromagnet (22) is embedded and fixed in the first fixed seat (21), and the second electromagnet (23) and the first electromagnet (22) are arranged in a mode that magnetic poles are opposite.

3. The steam turbine blade electromagnetic clamp of claim 1, wherein: and a protective sheet (26) is welded on the other end face of the push block (24) to prevent clamping the workpiece.

4. The steam turbine blade electromagnetic clamp of claim 3, wherein: the protective sheet (26) is made of aluminum.

5. The steam turbine blade electromagnetic clamp of claim 1, wherein: the upper part of the positioning block (3) is fixedly connected with a fixed cylinder (4), and the fixed cylinder (4) is designed to be hollow.

6. The steam turbine blade electromagnetic clamp of claim 5, wherein: the fixed cylinder (4) is internally provided with a high-pressure gas nozzle (5) in a penetrating way.

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