Online nondestructive testing device for blade processing

Abstract

The utility model discloses an on-line nondestructive testing device for blade processing, which comprises a base, a side mounting frame arranged on one side of the base, a second adjusting frame arranged on one side of the side mounting frame, a hoisting plate arranged on the second adjusting frame, a detection frame arranged below the hoisting plate, and a clamping plate arranged on the detection frame, a surface roughness meter is arranged in the center of the detection frame, symmetrical detection assemblies are arranged at the bottom of the detection frame, a first adjusting frame is further installed on the side installation frame, a positioning table is connected to the first adjusting frame, a clamping opening is formed in the center of the positioning table, a positioning clamping mechanism is installed in the clamping opening, and a blade workpiece is fixed through the positioning clamping mechanism. The device has the advantages that the root of a blade workpiece can be positioned in all directions, the two sides of the blade are synchronously detected, a stable light source is continuously provided, the detection precision is improved, the position is freely adjusted, and the operation is flexible and changeable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to blade processing technical field, more specifically, especially relate to a blade processing is with on -line nondestructive testing device. BACKGROUND

[0002] At present, in the manufacturing process of steam turbine, the blade is one of the key components. The quality of steam turbine blade directly affects the performance, efficiency and reliability of steam turbine. In the processing of blade, due to the complexity of processing technology, such as cutting, polishing, forming and other operations, various surface and internal defects may be produced, such as crack, blowhole, inclusion, etc. If these defects are not detected in time, it may cause the blade to break in the use process and other serious faults, and then affect the operation of the whole steam turbine.

[0003] The traditional detection method is often offline detection, that is, after the blade processing is completed, it is transported to the special detection equipment for detection. This way has many disadvantages. First, offline detection cannot timely feedback the quality problem in the processing process, once the problem is found, it may need a lot of rework, which increases the production cost and production cycle. Secondly, offline detection for large blade may cause secondary damage in the handling process, which affects the accuracy of the detection result.

[0004] In addition, some existing online detection devices have functional limitations. For example, it cannot provide continuous and stable illumination during detection, which will affect the observation of the details of the blade surface, and is easy to cause missed detection; and most detection devices can only detect the blade from a single angle, and cannot comprehensively detect each part of the blade, since the two sides of the blade body are curved surfaces, different angles may have different types of defects; in clamping and positioning, simple clamping method may not guarantee the stability of the blade during detection, especially for the root of the blade workpiece, which needs to be positioned in all directions, otherwise it will affect the detection accuracy. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of blade processing with on -line nondestructive testing device to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online non-destructive testing device for blade processing, comprising a base, a side mounting frame on one side of the base, a second motor mounted on one side of the side mounting frame, a transmission gear mounted on the drive end of the second motor, a second guide gear meshing on one side of the transmission gear, the second guide gear fixed to one side of a second adjusting frame, the second adjusting frame slidably mounted on a slide rail of the side mounting frame via a slider, a lifting plate mounted on the second adjusting frame, the lifting plate slidably mounted on a slide rail at the bottom of the second adjusting frame via a slider, and a testing frame mounted below the lifting plate. The testing frame has a surface roughness meter in the center and symmetrical testing components at the bottom. A first motor is located directly below the second motor and is fixed to one side of the side mounting frame. A transmission gear is installed on the drive end of the first motor, and a first guide gear is engaged on one side of the transmission gear. The first guide gear is fixed to one side of the first adjustment frame. The first adjustment frame is slidably mounted on the slide rail of the side mounting frame via a slider. A positioning platform is connected to the first adjustment frame, and a clamping opening is provided in the center of the positioning platform. A positioning clamping mechanism is installed in the clamping opening to fix the blade workpiece.

[0007] As an optional solution of this utility model, the detection assembly includes a fourth motor fixed to the bottom of the detection frame. The drive end of the fourth motor is connected to a detection plate. The detection plate is provided with symmetrical folded surfaces, and multiple lighting columns are installed on the folded surfaces to provide sufficient light source. A dust removal fan is installed inside the detection plate to blow away dust from the surface of the blade workpiece and prevent dust from sticking. Symmetrical side mounting plates are also installed on the detection plate, and multiple electromagnetic ultrasonic detectors are installed on each side mounting plate to perform all-round defect detection on the blade workpiece.

[0008] As an optional solution of this utility model, a positioning plate is provided on the second adjustment frame, one side of the positioning plate is installed on the electric cylinder, the push end of the electric cylinder is connected to a push plate, and one side of the push plate is connected to a lifting plate.

[0009] As an optional solution of this utility model, a drive shaft is installed at both ends of the first adjustment frame, and a drive wheel is assembled at both ends of the drive shaft. The drive wheel is equipped with a drive belt. A third motor is provided at one end of the bottom of the first adjustment frame. A drive wheel is installed at the drive end of the third motor. The same drive wheel is also installed in the center of the drive shaft above the third motor, and the drive wheel is driven by the drive belt to rotate. A positioning platform is connected to the drive belt.

[0010] As an optional scheme of the utility model, the positioning and clamping mechanism comprises a first sliding rod, the first sliding rod is fixed symmetrically on the positioning step, symmetric first clamping tables are slidably connected on the first sliding rod, a first double-rod air cylinder is connected to each side of each first clamping table, the first double-rod air cylinder is fixed in the positioning table and is located in the Y-axis direction of the positioning table, Y-axis direction clamping and fixing is carried out, symmetric second clamping tables are further arranged below the first clamping tables, the second clamping tables are slidably connected on second sliding rods, the second sliding rods are fixed in the positioning table and are located in the X-axis direction of the positioning table, a second double-rod air cylinder is connected to one side of each second clamping table, the second double-rod air cylinder drives the second clamping table to carry out X-axis direction clamping and fixing, double clamping of the blade workpiece root is carried out through the first clamping tables and the second clamping tables, and a limiting assembly is further arranged above the first clamping tables.

[0011] As an optional scheme of the utility model, the limiting assembly comprises a positioning seat, shafts are symmetrically mounted on the positioning seat, a limiting plate is fixed to the top of each shaft, and a limiting screw rod is threadedly connected to the limiting plate, so that the limiting screw rod can press the blade root.

[0012] The utility model provides a kind of online nondestructive testing device for blade processing, with the following beneficial effects:

[0013] By setting first double-rod air cylinder and second double-rod air cylinder, first clamping table is clamped in Y-axis direction, second clamping table is clamped in X-axis direction, multiple positioning is carried out from different directions, perpendicular detection is carried out on the blade below the surface roughness gauge on detection frame, flatness is detected, fourth motor at the bottom of detection frame drives detection plate to rotate different angles, which can be applied to detection of different blade angles, lighting lamp post on folding surface is continuously provided with light source, which is convenient for accurate detection, electromagnetic ultrasonic detector continuously detects blade surface without damage, dust removal fan removes dust on surface, to avoid that surface dust affects detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is the A-A sectional view of the utility model;

[0017] Figure 4 It is the B-B sectional view of the utility model;

[0018] Figure 5 It is the F-F sectional view of the utility model.

[0019] In the figure: 1, base; 2, first adjusting frame; 201, transmission shaft; 202, transmission wheel; 203, transmission belt; 3, side-mounted frame; 301, first motor; 3011, first guide tooth base; 302, second motor; 3021, second guide tooth base; 4, third motor; 401, drive wheel; 402, drive belt; 5, second adjusting frame; 501, positioning plate; 502, electric cylinder; 503, push plate; 504, hoisting plate; 6, detection frame; 7, surface roughness tester; 8, fourth motor; 801, detection plate; 802, illuminating lamp post; 803, dust removal fan; 804, side plate; 805, electromagnetic ultrasonic detector; 9, blade workpiece; 10, positioning table; 11, first sliding rod; 111, first clamping table; 112, first double-rod air cylinder; 12, second double-rod air cylinder; 121, second clamping table; 122, second sliding rod; 13, positioning seat; 131, limiting plate; 132, limiting screw; 14, transmission gear. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0021] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Please refer to Figures 1 to 5This utility model provides a technical solution: an online non-destructive testing device for blade processing, including a base 1, a side mounting frame 3 on one side of the base 1, a second motor 302 on one side of the side mounting frame 3, a transmission gear 14 on the drive end of the second motor 302, a second guide gear 3021 meshing on one side of the transmission gear 14, the second guide gear 3021 being fixed to one side of a second adjusting frame 5, the second adjusting frame 5 being slidably engaged on the slide rail of the side mounting frame 3 via a slider, the first motor 301 being started to drive the transmission gear 14 to rotate, thereby driving the first adjusting frame 2 to perform lifting operations.

[0024] The second adjusting frame 5 is equipped with a positioning plate 501. One side of the positioning plate 501 is mounted on an electric cylinder 502. The push end of the electric cylinder 502 is connected to a push plate 503. One side of the push plate 503 is connected to a lifting plate 504. The lifting plate 504 slides on the slide rail at the bottom of the second adjusting frame 5 via a slider, thereby driving the second adjusting frame 5 to move horizontally. A detection frame 6 is installed below the lifting plate 504. A surface roughness meter 7 is set in the center of the detection frame 6. The surface roughness meter 7 is used to detect the surface unevenness of the blade workpiece 9 below. A symmetrical detection assembly is set at the bottom of the detection frame 6. The detection assembly is used to perform comprehensive detection on both sides of the blade. The detection assembly includes a fourth motor 8 fixed to the bottom of the detection frame 6. The drive end of the fourth motor 8 is connected to the detection plate 801. The detection plate 801 is equipped with symmetrical folded surfaces. Multiple lighting columns 802 are installed on the folded surfaces to provide sufficient light source for surface detection.

[0025] The inspection plate 801 is equipped with a dust removal fan 803, which blows dust off the surface of the blade workpiece 9 to prevent dust from sticking. The inspection plate 801 is also equipped with symmetrical side-mounted plates 804, each of which is equipped with multiple electromagnetic ultrasonic detectors 805. The multiple electromagnetic ultrasonic detectors 805 perform all-round defect detection on the blade workpiece 9, detecting surface and near-surface defects. It has the advantages of fast detection speed, high accuracy and non-contact operation. The inspection plate 801 can be rotated by a fourth motor 8 to adjust the angle and perform flexible detection.

[0026] A first motor 301 is also provided directly below the second motor 302. The first motor 301 is fixed to one side of the side mounting frame 3, and a transmission gear 14 is installed on the drive end of the first motor 301. A first guide gear 3011 is meshed on one side of the transmission gear 14. The first guide gear 3011 is fixed to one side of the first adjustment frame 2. The first adjustment frame 2 is slidably engaged on the slide rail of the side mounting frame 3 by a slider. When the first motor 301 is started, it drives the transmission gear 14 to rotate, thereby driving the first adjustment frame 2 to perform lifting and lowering operations.

[0027] The first adjusting frame 2 is provided with a transmission shaft 201 at both ends, the transmission shaft 201 is provided with a transmission wheel 202 at both ends, the transmission wheel 202 is provided with a transmission belt 203, one end of the bottom of the first adjusting frame 2 is provided with a third motor 4, the third motor 4 is provided with a driving wheel 401 at the driving end, the same driving wheel 401 is also installed at the center of the transmission shaft 201 above the third motor 4, and is driven and matched through a driving belt 402, so as to drive the transmission wheel 202 to rotate, the transmission belt 203 is connected with a positioning table 10, the positioning table 10 is provided with a clamping opening in the center, the clamping opening is provided with a positioning and clamping mechanism, the positioning and clamping mechanism fixes the blade workpiece 9, and the detection stability of the blade workpiece 9 is ensured.

[0028] The positioning and clamping mechanism comprises a first sliding rod 11, the first sliding rod 11 is symmetrically fixed on the positioning table 10, the first sliding rod 11 is slidably matched with symmetrical first clamping tables 111, one side of each first clamping table 111 is connected with a first double-rod air cylinder 112, the first double-rod air cylinder 112 is fixed in the positioning table 10 and located in the Y-axis direction of the positioning table 10, so as to realize clamping and fixing in the Y-axis direction, the first clamping table 111 is further provided with symmetrical second clamping tables 121 below, the second clamping tables 121 are slidably matched with second sliding rods 122, the second sliding rods 122 are fixed in the positioning table 10 and located in the X-axis direction of the positioning table 10, one side of the second clamping table 121 is connected with a second double-rod air cylinder 12, the second clamping table 121 is driven by the second double-rod air cylinder 12 to realize clamping and fixing in the X-axis direction, the blade workpiece 9 is clamped at the root by the first clamping table 111 and the second clamping table 121, and the vertical positioning of the blade workpiece 9 is ensured.

[0029] The first clamping table 111 is further provided with a limiting assembly above, the limiting assembly fixes and limits the upper part of the blade root, and further reinforces, the limiting assembly comprises a positioning seat 13, the positioning seat 13 is symmetrically provided with a rotating shaft, the rotating shaft is fixed with a limiting plate 131 at the top, the limiting plate 131 is threadedly matched with a limiting screw 132, the blade root is pressed by the limiting screw 132, and the stability of the blade workpiece 9 is maintained.

[0030] The specific use and role of the embodiment are as follows: first, the root of the blade workpiece 9 is placed in the first clamping table 111 and the second clamping table 121, the first double-rod air cylinder 112 and the second double-rod air cylinder 12 are started to drive the first clamping table 111 to clamp in the Y-axis direction and drive the second clamping table 121 to clamp in the X-axis direction, then the limiting screw 132 on the first clamping table 111 is further limited and fixed, after ensuring stability, the third motor 4 is started to drive the positioning table 10 to move to the detection area, the electric cylinder 502 is started to drive the lifting plate 504 to move to the detection area, the surface roughness tester 7 on the detection frame 6 is perpendicular to the blade below for vertical detection, the flatness is detected, the fourth motor 8 at the bottom of the detection frame 6 is started to drive the detection plate 801 to rotate at different angles for detection of different blade angles, the lighting lamp column 802 on the folded surface continuously provides light source for accurate detection, the electromagnetic ultrasonic detector 805 continuously performs nondestructive detection on the surface of the blade, and the dust removal fan 803 performs dust removal treatment on the surface to avoid that dust on the surface affects detection accuracy, when height adjustment is needed, the first motor 301 and the second motor 302 are started to adjust the distance between the first adjusting frame 2 and the second adjusting frame 5, and the operation is flexible and changeable.

[0031] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, can be located in one place, or can be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An online non-destructive testing device for blade processing, characterized in that: Includes a base (1), a side mounting bracket (3) is provided on one side of the base (1), a second motor (302) is installed on one side of the side mounting bracket (3), a transmission gear (14) is installed on the drive end of the second motor (302), a second guide gear (3021) is meshed on one side of the transmission gear (14), the second guide gear (3021) is fixed on one side of the second adjusting bracket (5), the second adjusting bracket (5) is slidably engaged on the slide rail of the side mounting bracket (3) by a slider, a lifting plate (504) is provided on the second adjusting bracket (5), the lifting plate (504) is slidably engaged on the slide rail at the bottom of the second adjusting bracket (5) by a slider, a testing frame (6) is installed below the lifting plate (504), and a surface roughness meter is provided in the center of the testing frame (6). 7) The bottom of the detection frame (6) is provided with symmetrical detection components. The first motor (301) is also provided directly below the second motor (302). The first motor (301) is fixed on one side of the side mounting frame (3), and the drive end of the first motor (301) is equipped with a transmission gear (14). The first guide gear (3011) is meshed on one side of the transmission gear (14). The first guide gear (3011) is fixed on one side of the first adjustment frame (2). The first adjustment frame (2) is slidably fitted on the slide rail of the side mounting frame (3) by a slider. The first adjustment frame (2) is connected to a positioning table (10). The positioning table (10) is provided with a clamping port in the center. The positioning clamping mechanism is installed in the clamping port and the positioning clamping mechanism fixes the blade workpiece (9).

2. The online non-destructive testing device for blade processing according to claim 1, characterized in that: The detection assembly includes a fourth motor (8) fixed at the bottom of the detection frame (6). The driving end of the fourth motor (8) is connected to a detection plate (801). The detection plate (801) has symmetrical folded surfaces, and multiple lighting columns (802) are installed on the folded surfaces to provide sufficient light source. A dust removal fan (803) is installed inside the detection plate (801) to blow away dust from the surface of the blade workpiece (9) and prevent dust from sticking. Symmetrical side mounting plates (804) are also installed on the detection plate (801). Multiple electromagnetic ultrasonic detectors (805) are installed on each side mounting plate (804) to perform all-round defect detection on the blade workpiece (9).

3. The online non-destructive testing device for blade processing according to claim 1, characterized in that: The second adjusting frame (5) is provided with a positioning plate (501), one side of the positioning plate (501) is mounted on an electric cylinder (502), the push end of the electric cylinder (502) is connected to a push plate (503), and one side of the push plate (503) is connected to a lifting plate (504).

4. The online non-destructive testing device for blade processing according to claim 1, characterized in that: The first adjustment frame (2) is equipped with a drive shaft (201) at both ends. The drive shaft (201) is equipped with a drive wheel (202) at both ends. The drive wheel (202) is equipped with a drive belt (203). The bottom end of the first adjustment frame (2) is provided with a third motor (4). The drive end of the third motor (4) is equipped with a drive wheel (401). The same drive wheel (401) is also installed in the center of the drive shaft (201) above the third motor (4). The drive wheel (202) is driven by the drive belt (402) to rotate. The drive belt (203) is connected to a positioning platform (10).

5. The online non-destructive testing device for blade processing according to claim 1, characterized in that: The positioning and clamping mechanism includes a first slide rod (11), which is symmetrically fixed on the positioning platform (10). Symmetrical first clamping platforms (111) are slidably fitted on the first slide rod (11). Each first clamping platform (111) has a first double-rod cylinder (112) connected to one side. The first double-rod cylinder (112) is fixed inside the positioning platform (10) and located in the Y-axis direction of the positioning platform (10) for clamping and fixing in the Y-axis direction. A symmetrical second clamping platform (121) is also provided below the first clamping platform (111). The two clamping platforms (121) are slidably fitted on the second slide rod (122). The second slide rod (122) is fixed inside the positioning platform (10) and located in the X-axis direction of the positioning platform (10). A second double-rod cylinder (12) is connected to one side of the second clamping platform (121). The second double-rod cylinder (12) drives the second clamping platform (121) to perform clamping and fixing in the X-axis direction. The root of the blade workpiece (9) is double-clamped by the first clamping platform (111) and the second clamping platform (121). A limit component is also provided above the first clamping platform (111).

6. The online non-destructive testing device for blade processing according to claim 5, characterized in that: The limiting component includes a positioning seat (13), on which rotating shafts are symmetrically mounted. A limiting plate (131) is fixed at the top of the rotating shaft. A limiting screw (132) is threaded onto the limiting plate (131) to press the root of the blade.

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