Fixing tool for blade detection

Abstract

The utility model discloses a fixing tool for blade detection, which comprises a base and a clamping disc for clamping a blade, a rotatable fixing seat for mounting the clamping disc is arranged on the base, and a driving mechanism for driving the fixing seat to rotate is arranged in the base; a plurality of fixing seats are arranged and correspondingly arranged on unparallel side walls, alignment blocks connected with the fixing seats are arranged on the back side of the clamping disc, two unparallel sliding grooves are formed in the front side of the clamping disc, screw rods are arranged in the sliding grooves, the two screw rods are not arranged on the same plane, and clamping claws are symmetrically connected to the two sides of each screw rod in a threaded mode. According to the utility model, the design is reasonable, the structure is compact, the capability of clamping and fixing different types of blades is effectively ensured, the angle of the blade can be conveniently adjusted, the measurement of the blade is facilitated, and the usability of a fixing tool is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of blade detection, in particular to a fixing tooling for blade detection. Background Technique

[0002] The impeller refers to both the wheel disc equipped with moving blades, which is a component of the impulse steam turbine rotor, and can also refer to the general term of the wheel disc and the rotating blades installed thereon. The impeller can be classified according to its shape and opening / closing condition. To ensure the quality of the blades, it is necessary to detect the quality status of the blades during blade production and processing as well as during blade tests.

[0003] Currently, when detecting blades, generally, clamps such as vises are used to clamp and fix the blades. It is difficult to adjust the detection angle of the blades, which is not convenient for the comprehensive detection of the blades and difficult to ensure the detection effect of the blades. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages that the existing detection fixture is difficult to adjust the detection angle of the blade, not convenient for the comprehensive detection of the blade, and difficult to ensure the detection effect of the blade, and to propose a fixing tooling for blade detection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A fixing tooling for blade detection includes a base and a clamping disc for clamping the blade. A rotatable fixing seat for installing the clamping disc is provided on the base, and a driving mechanism for driving the fixing seat to rotate is provided inside the base;

[0007] A plurality of the fixing seats are provided and are correspondingly arranged on non-parallel side walls. A positioning block connected to the fixing seat is provided on the back side of the clamping disc. Two non-parallel sliding grooves are opened on the front side of the clamping disc. Screws are provided in the sliding grooves, and the two screws are not arranged in the same plane. Clamping claws are symmetrically threadedly connected to both sides of the screws.

[0008] Preferably, avoidance openings are opened on both sides of the clamping claws, and the avoidance openings on two adjacent clamping claws are staggered with each other.

[0009] Preferably, an adjusting end and a locking nut are respectively provided on both sides of the screw.

[0010] Preferably, the cross section of the positioning block is polygonal.

[0011] More preferably, a positioning groove matching the positioning block is provided on the fixing seat. Pin holes are correspondingly provided on the side walls of the positioning groove and the positioning block, and locking pins are provided in the pin holes.

[0012] Preferably, the driving mechanism includes a plurality of bevel gears, a speed reducer and a motor that correspond to the fixed seats one by one and are coaxially connected, wherein the bevel gears are meshed with each other, one of the bevel gears is coaxially connected to the output end of the speed reducer, and the input end of the speed reducer is connected to the motor.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, through the cooperation of the fixed seats in multiple directions and the clamping disc, the blade can be conveniently placed at a suitable detection angle, and can be conveniently switched between different angles, and can also drive the blade to rotate for angle adjustment, facilitating the fixing of blade detection and being convenient to use;

[0015] 2. In the present utility model, through the separate adjustment design of the clamping claws on both sides, it is convenient to clamp and fix irregular blades, ensuring the clamping effect on blades of different shapes and improving the clamping ability of the fixing tooling.

[0016] The present utility model is reasonably designed and has a compact structure, effectively ensuring the clamping and fixing ability for blades of different models, and can conveniently adjust the blade angle, facilitating the addition and measurement of blades, and ensuring the usability of the fixing tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the external structure of the present utility model.

[0018] Figure 2 is a schematic sectional view of the present utility model.

[0019] Figure 3 is a schematic diagram of the structure of the fixed seat of the present utility model.

[0020] Figure 4 is a schematic diagram of the front and back structures of the clamping disc of the present utility model.

[0021] In the figure: base 1, fixed seat 2, alignment groove 21, pin hole 22, driving mechanism 3, bevel gear 31, speed reducer 32, motor 33, clamping disc 4, sliding groove 41, screw 42, adjusting end 421, locking nut 422, clamping claw 43, avoidance opening 431, alignment block 44, locking pin 45. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Refer to Figures 1-4, A fixing tool for blade detection, including a base 1 and a clamping disc 4 for clamping the blade, which clamps the clamping parts such as tenons on the blade, facilitating the detection of the blade. A rotatable fixing seat 2 for installing the clamping disc 4 is provided on the base 1, and a driving mechanism 3 for driving the fixing seat 2 to rotate is provided inside the base 1. The driving mechanism 3 cooperates with the fixing seat 2 to drive the clamping disc 4 to rotate, so as to adjust the placement angle of the blade, facilitate the multi-angle detection of the blade, and improve the detection efficiency.

[0024] A plurality of the fixing seats 2 are provided and are correspondingly arranged on non-parallel side walls, preferably on two adjacent side walls of the base 1 that are perpendicular to each other, and clamping discs in two directions of horizontal and vertical can be placed to perform horizontal clamping or vertical clamping of the blade. When performing all-round detection of the blade, specific angle clamping requirements can be provided as needed. A positioning block 44 connected to the fixing seat 2 is provided on the back side of the clamping disc 4. Through the design of the positioning block 44, it is convenient to connect the clamping disc 4 to the fixing seat 2, ensure the convenient installation of the clamping disc 4, and make the clamping disc 4 easy to be replaced between the horizontal and vertical fixing seats 2, facilitating the replacement of different detection angles. Two non-parallel sliding grooves 41 are provided on the front side of the clamping disc, preferably two mutually perpendicular sliding grooves 41. For the case where the shape of the blade tenon is irregular, corresponding angles can also be set. A screw rod 42 is provided in the sliding groove 41, and the two screw rods 42 are not arranged in the same plane. Clamping claws 43 are symmetrically threadedly connected to both sides of the screw rod 42. The screw rod 42 can be set with opposite thread directions on both sides. By rotating the screw rod 42, the clamping claws 43 are driven to approach or move away from each other to clamp the blade. Through the design of clamping respectively by the two sliding grooves 41, it is convenient to clamp the clamping parts of irregularly shaped blades, and good clamping effects can also be achieved for blade tenons with different lengths and widths.

[0025] In this technical solution, as Figures 1-4 shown, avoidance openings 431 are provided on both sides of the clamping claw 43, and the avoidance openings 431 on two adjacent clamping claws 43 are staggered with each other. Through the design of the avoidance openings 431, while ensuring that the clamping claw 43 has a suitable width to contact the blade, the adaptability to different sizes of blades can be increased. For example, when clamping a smaller-sized blade, the clamping claw 43 slides towards the adjacent side, and the avoidance openings 431 are staggered to avoid interference between adjacent clamping claws 43, ensuring the clamping effect on the small-sized blade and greatly improving the compatibility of the blade size.

[0026] In this technical solution, as Figures 1-4 shown, an adjusting end 421 and a locking nut 422 are respectively provided on both sides of the screw rod 42. They are respectively used to rotate the screw rod 42 and lock the screw rod 42, facilitating the adjustment and locking of the position of the clamping claw 43, facilitating the use of the clamping disc 4, and ensuring the clamping effect on the blade.

[0027] In this technical solution, as Figures 1-4 shown, the cross-section of the alignment block 44 is polygonal. This ensures the alignment and locking effect between the alignment block 44 and the alignment groove 21, guarantees the stable connection between the fixed seat 2 and the clamping disc 4, ensures the precision of the rotation of the fixed seat 2 driving the clamping disc 4, and guarantees the angle adjustment effect during blade detection.

[0028] In this technical solution, as Figures 1-4 shown, the fixed seat 2 is provided with an alignment groove 21 matching the alignment block 44. Corresponding pin holes 22 are provided on the side walls of the alignment groove 21 and the alignment block 44. A locking pin 45 is arranged in the pin hole 22. When the clamping disc 4 is installed, it is locked by the locking pin 45. When it is necessary to remove the clamping disc 4, removing the locking pin 45 can take out the clamping disc 4, which is convenient for the installation and fixation of the clamping disc 4 and improves the usability of the fixing tooling.

[0029] In this technical solution, as Figures 1-4 shown, the driving mechanism 3 includes a plurality of bevel gears 31, a speed reducer 32 and a motor 33 that are in one-to-one correspondence with the fixed seat 2 and are coaxially connected. Among them, the bevel gears 31 mesh with each other. One of the bevel gears 31 is coaxially connected to the output end of the speed reducer 32, and the input end of the speed reducer 32 is connected to the motor 33. The cooperation of the motor 33 and the speed reducer 32 drives the fixed seat 2 to rotate, which is convenient for rotating the clamped blade to the required detection angle for detection, guarantees the use effect of the detection tooling. The motor 33 can be a servo motor to ensure precise control of the rotation angle.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A fixed tool for blade inspection, characterized in that: The invention comprises a base (1) and a clamping plate (4) for clamping a blade, wherein a rotatable fixing seat (2) for mounting the clamping plate (4) is provided on the base (1), and a driving mechanism (3) for driving the fixing seat (2) to rotate is provided inside the base (1); The fixing seats (2) are provided in plurality and are arranged correspondingly on the non-parallel side walls; the back side of the clamping plate (4) is provided with a positioning block (44) connected to the fixing seat (2); the front side of the clamping plate is provided with two non-parallel slide grooves (41); the slide grooves (41) are provided with screw rods (42), and the two screw rods (42) are not arranged on the same plane; and the two sides of the screw rods (42) are symmetrically threadedly connected with clamping claws (43).

2. A blade inspection fixture according to claim 1, characterized in that: Avoidance openings (431) are provided on both sides of the clamping claws (43), and the avoidance openings (431) on two adjacent clamping claws (43) are staggered.

3. A blade inspection fixture according to claim 1, characterized in that: An adjusting end (421) and a locking nut (422) are respectively provided on both sides of the screw rod (42).

4. A blade inspection fixture according to claim 1, characterized in that: The alignment block (44) has a polygonal cross section.

5. A blade inspection fixture according to claim 4, characterized in that: The fixing seat (2) is provided with an alignment groove (21) matching with the alignment block (44), and the alignment groove (21) and the side wall of the alignment block (44) are correspondingly provided with a pin hole (22), and a locking pin (45) is provided in the pin hole (22).

6. A blade inspection fixture according to claim 1, characterized in that: The driving mechanism (3) comprises a plurality of bevel gears (31) corresponding one to one with the fixing seat (2) and coaxially connected, a reducer (32) and a motor (33), wherein the bevel gears (31) are meshed with each other, one of the bevel gears (31) is coaxially connected to the output end of the reducer (32), and the input end of the reducer (32) is connected to the motor (33).

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