Blade edge detector and detection method

Abstract

The invention discloses a blade edge detector and a detection method, and belongs to the technical field of edge measurement devices. The X-axis moving mechanism is connected with the top of the control electric cabinet; the X-axis moving mechanism is connected with an action piece of the transverse moving mechanism; the slewing mechanism is connected with the action piece of the longitudinal moving mechanism, and a measuring blade is placed on the slewing mechanism; an action piece of the Z-axis moving mechanism is connected with the measuring head, and the Z-axis moving mechanism is used for detecting and measuring the edge quality of the blade; according to the invention, the X-axis movement mechanism, the Y-axis movement mechanism and the Z-axis movement mechanism can carry out multi-direction azimuth adjustment on the measured blade, and the edge quality of the measured blade can be rapidly detected in cooperation with the measuring head, so that the measurement efficiency and precision are greatly improved compared with manual detection.

Description

Technical Field

[0001] The invention relates to the technical field of blade edge detection devices, and in particular to a blade edge detector and a detection method. Background Art

[0002] Blade parts are widely used in aviation, aerospace, and navigation. The improvement of blade quality has a significant impact on these fields. With the rapid development of processing and manufacturing, the processing accuracy and efficiency of blade parts have made great progress, which has put forward new requirements for their detection, and also has clear requirements for measurement efficiency under the premise of ensuring measurement accuracy.

[0003] The traditional method of blade edge measurement is manual, with low measurement efficiency and large measurement errors, which seriously affects the overall production capacity and becomes a shortcoming in closed-loop production. Summary of the invention

[0004] On the one hand, in order to solve the problems of the prior art, the present invention provides a blade edge detector, comprising:

[0005] Control cabinet;

[0006] An X-axis moving mechanism, wherein the X-axis moving mechanism is connected to the top of the control cabinet;

[0007] A Y-axis moving mechanism, wherein the X-axis moving mechanism is connected to the actuating member of the transverse moving mechanism;

[0008] A rotary mechanism, the rotary mechanism is connected to the actuating member of the longitudinal movement mechanism, and a measuring blade is placed on the rotary mechanism;

[0009] The Z-axis moving mechanism has an actuating member connected to the measuring head for detecting and measuring the edge quality of the blade.

[0010] Furthermore, the X-axis moving mechanism comprises: a first base, a first screw rod, a first motor and a first slider;

[0011] The bottom of the first base is connected to the top of the control cabinet;

[0012] A first groove is provided on the top end surface of the first base, the first screw rod is provided in the first groove, one end of the first screw rod passes through the first groove and is connected to the first motor, and the other end of the first screw rod is rotatably connected to the groove wall of the first groove;

[0013] The first sliding block is located in the first groove and sleeved on the first screw rod;

[0014] The Y-axis moving mechanism is connected to the top of the first sliding block.

[0015] Furthermore, the Y-axis moving mechanism comprises: a second base, a second screw rod, a second motor and a second slider;

[0016] The bottom of the second base is connected to the top of the first sliding block;

[0017] A second groove is provided on the top end surface of the second base, the second screw rod is provided in the second groove, one end of the second screw rod passes through the second groove and is connected to the second motor, and the other end of the second screw rod is rotatably connected to the groove wall of the second groove;

[0018] The second sliding block is located in the second groove and sleeved on the second screw rod;

[0019] The rotating mechanism is connected to the top of the second sliding block.

[0020] Further, the slewing mechanism comprises: a third motor, a third base and a clamp;

[0021] The bottom of the third base is connected to the top of the second sliding block;

[0022] The third motor is connected to one side of the third base, and an output end of the third motor is provided with a shaft passing through the third base;

[0023] The fixture is connected to the shaft, and is used for clamping the measuring blade.

[0024] Further, the Z-axis moving mechanism comprises: a fourth motor, a fourth base, a fourth screw rod and a fourth slider;

[0025] The fourth base is vertically rotatably connected to the top of the control cabinet;

[0026] A fourth groove is provided on one side surface of the fourth base, the fourth screw rod is provided in the fourth groove, one end of the fourth screw rod passes through the third groove and is connected to the fourth motor, the other end of the fourth screw rod is rotatably connected to the groove wall of the fourth groove, and the fourth motor is connected to the top of the fourth base;

[0027] The fourth sliding block is located in the fourth groove and sleeved on the fourth screw rod;

[0028] The measuring head is connected to the fourth sliding block.

[0029] Furthermore, the measuring head is a double-head laser measuring head.

[0030] Furthermore, the double-head laser probe comprises: a mounting base and a probe;

[0031] A laser generator is arranged in the mounting seat, and after the laser generator is started, laser is emitted from the measuring head;

[0032] The probes are two symmetrical measuring heads, the bottoms of the probes are crossed and a right-angle notch is left below the intersection for contacting the edge of the blade, a spacing is left between the tops of the probes and they are connected to the mounting seat, and the probes are in a V-shaped structure as a whole.

[0033] On the other hand, the present application provides a blade edge detection method, the method comprising the following steps:

[0034] Step 1, obtaining the edge data of the blade;

[0035] Install the measuring blade on the rotary mechanism so that the top of the measuring blade is parallel to the top of the control cabinet, adjust the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism so that the edge of the measuring blade contacts the measuring head; synchronize the measuring head and the X-axis moving mechanism, and the measuring blade is driven by the X-axis moving mechanism to make a linear motion. During this process, the measuring head detects the top edge of the measuring blade. After measuring the top edge of the measuring blade, adjust the rotary mechanism to detect other edges of the measuring blade; according to the structure of the measuring blade, you can choose to start the X-axis moving mechanism or the Y-axis moving mechanism to measure the edge of the measuring blade;

[0036] Step 2: Analyze the acquired edge data;

[0037] The measuring head sends the detected edge data to a memory, wherein the memory is provided with at least a first storage area, a second storage area, a third storage area and a fourth storage area;

[0038] The first storage area stores edge data acquired in real time, and the second storage area stores a comparison module for determining whether the edge data acquired in real time exceeds a defect range; the third storage area is used to store qualified edge data, and the fourth storage area is used to store defective edge data;

[0039] The comparison module is connected to the controller. When the measuring head completes the edge detection of a blade, the controller copies the data in the first storage area to the comparison module for defect analysis through the calling module, and sends the qualified data after analysis to the third storage area according to the first link, and sends the defective edge data to the fourth storage area according to the second link;

[0040] By making statistics on the defect data in the fourth storage area or the data in the third storage area through the controller, it is possible to obtain whether the current blade meets the quality inspection requirements, and the final result is displayed on the display screen.

[0041] Furthermore, the comparison module analyzes the edge detection data including:

[0042] Divide all copied data into multiple regions, and then segment each region, that is, draw straight lines in each region, divide each region into multiple line segments, and try to make more data fall on a straight line when drawing straight lines. Then, based on the data on the straight line, calculate the strength and thickness of each straight line. Based on the strength and thickness of all straight lines in a region, calculate the strength and thickness of a region, and calculate the strength and thickness of all regions in turn, so as to obtain the strength and thickness of the entire blade;

[0043] By comparing the strength and thickness of each area with the preset values, the judgment results of all areas can be obtained. Based on the judgment results of all areas, it can be determined whether the blade meets the standards, and the position of the area on the blade can be located and repaired according to the strength and thickness on each straight line in each area.

[0044] Beneficial effects of the present invention:

[0045] The present application can adjust the position of the measuring blade in multiple directions by setting up the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism, and can quickly detect the edge quality of the measuring blade in conjunction with the measuring head, thereby greatly improving the measurement efficiency and accuracy compared to manual detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the three-dimensional structure of a blade edge detector provided by the present invention;

[0047] Figure 2 This is a schematic diagram of the side structure of the blade edge detector provided by the present invention.

[0048] Reference numerals:

[0049] In the figure: 1 is a control cabinet, 2 is a first base, 3 is a first screw rod, 4 is a first motor, 5 is a first slider, 6 is a second base, 7 is a second screw rod, 8 is a second motor, 9 is a second slider, 10 is a third motor, 11 is a third base, 12 is a fixture, 13 is a measuring blade, 14 is a fourth motor, 15 is a fourth base, 16 is a fourth screw rod, 17 is a fourth slider, and 18 is a measuring head. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Example 1

[0052] See also Figure 1-2 The present invention provides a blade edge detector, comprising: 1;

[0054] An X-axis moving mechanism, wherein the X-axis moving mechanism is connected to the top of the control cabinet 1;

[0055] The X-axis moving mechanism comprises: a first base 2, a first screw rod 3, a first motor 4 and a first slider 5;

[0056] The bottom of the first base 2 is connected to the top of the control cabinet 1;

[0057] A first groove is provided on the top end surface of the first base 2, the first screw rod is provided in the first groove, one end of the first screw rod passes through the first groove and is connected to the first motor 4, and the other end of the first screw rod is rotatably connected to the groove wall of the first groove;

[0058] The first sliding block 5 is located in the first groove and sleeved on the first screw rod;

[0059] The Y-axis moving mechanism is connected to the top of the first sliding block 5 .

[0060] A Y-axis moving mechanism, wherein the X-axis moving mechanism is connected to the actuating member of the transverse moving mechanism;

[0061] The Y-axis moving mechanism comprises: a second base 6, a second screw rod 7, a second motor 8 and a second slider 9;

[0062] The bottom of the second base 6 is connected to the top of the first sliding block 5;

[0063] The top end surface of the second base 6 is provided with a second groove, the second screw rod 7 is arranged in the second groove, one end of the second screw rod 7 passes through the second groove and is connected to the second motor 8, and the other end of the second screw rod 7 is rotatably connected to the groove wall of the second groove;

[0064] The second sliding block 9 is located in the second groove and sleeved on the second screw rod 7;

[0065] The rotary mechanism is connected to the top of the second sliding block 9 .

[0066] A rotary mechanism, the rotary mechanism is connected to the actuating member of the longitudinal movement mechanism, and a measuring blade 13 is placed on the rotary mechanism;

[0067] The rotary mechanism comprises: a third motor 10, a third base 11 and a clamp 12;

[0068] The bottom of the third base 11 is connected to the top of the second sliding block 9;

[0069] The third motor 10 is connected to one side of the third base 11, and an output end of the third motor 10 is provided with a shaft passing through the third base 11;

[0070] The clamp 12 is connected to the shaft, and the clamp 12 is used to clamp the measuring blade 13 .

[0071] The Z-axis moving mechanism has an actuating member connected to the measuring head 18 and is used for detecting and measuring the edge quality of the blade 13 .

[0072] The Z-axis moving mechanism includes: a fourth motor 14, a fourth base 15, a fourth screw rod 16 and a fourth slider 17;

[0073] The fourth base 15 is vertically rotatably connected to the top of the control cabinet;

[0074] A fourth groove is provided on one side surface of the fourth base 15, the fourth screw rod 16 is provided in the fourth groove, one end of the fourth screw rod 16 passes through the third groove and is connected to the fourth motor 14, the other end of the fourth screw rod 16 is rotatably connected to the groove wall of the fourth groove, and the fourth motor 14 is connected to the top of the fourth base 15;

[0075] The fourth sliding block 17 is located in the fourth groove and sleeved on the fourth screw rod 16;

[0076] The measuring head 18 is connected to the fourth slide 17 .

[0077] The measuring head 18 is a double-head laser measuring head.

[0078] The double-head laser probe comprises: a mounting base and a probe;

[0079] A laser generator is arranged in the mounting seat, and after the laser generator is started, laser is emitted from the measuring head;

[0080] The probes are two symmetrical measuring heads 18, the bottoms of the probes are crossed and a right-angle notch is left below the intersection for contacting the blade edge, a spacing is left between the tops of the probes and they are connected to the mounting seat, and the probes are in a V-shaped structure as a whole.

[0081] Among them, the main invention point of the present application is that by arranging a moving mechanism in the X-axis and Y-axis directions, the measuring blade can be driven to be adjusted in multiple directions, and the measuring blade can be driven to rotate through the rotating mechanism, so that the moving mechanism is started accordingly according to the measured structure, and the edge detection can be completed in conjunction with the measuring head, and the entire process is automatically controlled, which is more efficient and accurate than manual detection.

[0082] Among them, when the first motor is started, the first screw rotates, synchronously driving the first slider to move along the first screw, and the second base is connected to the first slider, thereby synchronously driving the second base to move. Similarly, when the second motor is started, the second screw rotates, synchronously driving the second slider to move along the second screw, and the third base is connected to the second slider, thereby synchronously driving the third base to move. By controlling the first motor and the second motor, the azimuth of the measuring blade in the X-axis and Y-axis directions can be adjusted. By starting the third motor, the measuring blade can be driven to rotate, so that after completing the detection of one edge of a blade, switch to another edge for detection, and connect the measuring head to the third slider in the Z-axis direction, the position can be adjusted according to blades of different heights, and then the measurement process is carried out, and the fourth base is rotatably connected to the top of the control cabinet, so that the measurement azimuth can be adjusted according to the structure of the blade, so that the measuring head is in optimal contact with the blade edge, and the measuring head uses a double-headed laser probe to measure the blade edge. The double-headed laser probe can emit two laser beams, which intersect at a certain angle. It can measure both sides of the edge at the same time and integrate and output the data.

[0083] Example 2

[0084] The present application provides a blade edge detection method, the method comprising the following steps:

[0085] Step 1, obtaining the edge data of the blade;

[0086] Install the measuring blade on the rotary mechanism so that the top of the measuring blade is parallel to the top of the control cabinet, adjust the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism so that the edge of the measuring blade contacts the measuring head; synchronize the measuring head and the X-axis moving mechanism, and the measuring blade is driven by the X-axis moving mechanism to make a linear motion. During this process, the measuring head detects the top edge of the measuring blade. After measuring the top edge of the measuring blade, adjust the rotary mechanism to detect other edges of the measuring blade; according to the structure of the measuring blade, you can choose to start the X-axis moving mechanism or the Y-axis moving mechanism to measure the edge of the measuring blade;

[0087] Step 2: Analyze the acquired edge data;

[0088] The measuring head sends the detected edge data to a memory, wherein the memory is provided with at least a first storage area, a second storage area, a third storage area and a fourth storage area;

[0089] The first storage area stores edge data acquired in real time, and the second storage area stores a comparison module for determining whether the edge data acquired in real time exceeds a defect range; the third storage area is used to store qualified edge data, and the fourth storage area is used to store defective edge data;

[0090] The comparison module is connected to the controller. When the measuring head completes the edge detection of a blade, the controller copies the data in the first storage area to the comparison module for defect analysis through the calling module, and sends the qualified data after analysis to the third storage area according to the first link, and sends the defective edge data to the fourth storage area according to the second link;

[0091] By making statistics on the defect data in the fourth storage area or the data in the third storage area through the controller, it is possible to obtain whether the current blade meets the quality inspection requirements, and the final result is displayed on the display screen.

[0092] The comparison module analyzes the edge detection data including:

[0093] Divide all copied data into multiple regions, and then segment each region, that is, draw straight lines in each region, divide each region into multiple line segments, and try to make more data fall on a straight line when drawing straight lines. Then, based on the data on the straight line, calculate the strength and thickness of each straight line. Based on the strength and thickness of all straight lines in a region, calculate the strength and thickness of a region, and calculate the strength and thickness of all regions in turn, so as to obtain the strength and thickness of the entire blade;

[0094] By comparing the strength and thickness of each area with the preset values, the judgment results of all areas can be obtained. Based on the judgment results of all areas, it can be determined whether the blade meets the standards, and the position of the area on the blade can be located and repaired according to the strength and thickness on each straight line in each area.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A blade edge detector, characterized in that: include: Control cabinet; An X-axis moving mechanism, wherein the X-axis moving mechanism is connected to the top of the control cabinet; A Y-axis moving mechanism, wherein the X-axis moving mechanism is connected to the actuating member of the transverse moving mechanism; A rotary mechanism, the rotary mechanism is connected to the actuating member of the longitudinal movement mechanism, and a measuring blade is placed on the rotary mechanism; The Z-axis moving mechanism has an actuating member connected to the measuring head and is used for detecting and measuring the edge quality of the blade.

2. The blade edge detector according to claim 1, characterized in that: The X-axis moving mechanism comprises: a first base, a first screw rod, a first motor and a first slider; The bottom of the first base is connected to the top of the control cabinet; A first groove is provided on the top end surface of the first base, the first screw rod is provided in the first groove, one end of the first screw rod passes through the first groove and is connected to the first motor, and the other end of the first screw rod is rotatably connected to the groove wall of the first groove; The first sliding block is located in the first groove and sleeved on the first screw rod; The Y-axis moving mechanism is connected to the top of the first sliding block.

3. The blade edge detector according to claim 2, characterized in that: The Y-axis moving mechanism comprises: a second base, a second screw rod, a second motor and a second slider; The bottom of the second base is connected to the top of the first sliding block; A second groove is provided on the top end surface of the second base, the second screw rod is provided in the second groove, one end of the second screw rod passes through the second groove and is connected to the second motor, and the other end of the second screw rod is rotatably connected to the groove wall of the second groove; The second sliding block is located in the second groove and sleeved on the second screw rod; The rotating mechanism is connected to the top of the second sliding block.

4. The blade edge detector according to claim 3, characterized in that: The rotary mechanism comprises: a third motor, a third base and a clamp; The bottom of the third base is connected to the top of the second sliding block; The third motor is connected to one side of the third base, and an output end of the third motor is provided with a shaft passing through the third base; The fixture is connected to the shaft, and is used for clamping the measuring blade.

5. The blade edge detector according to claim 1, characterized in that: The Z-axis moving mechanism comprises: a fourth motor, a fourth base, a fourth screw rod and a fourth slider; The fourth base is vertically rotatably connected to the top of the control cabinet; A fourth groove is provided on one side surface of the fourth base, the fourth screw rod is provided in the fourth groove, one end of the fourth screw rod passes through the third groove and is connected to the fourth motor, the other end of the fourth screw rod is rotatably connected to the groove wall of the fourth groove, and the fourth motor is connected to the top of the fourth base; The fourth sliding block is located in the fourth groove and sleeved on the fourth screw rod; The measuring head is connected to the fourth sliding block.

6. The blade edge detector according to claim 1, characterized in that: The measuring head is a double-head laser measuring head.

7. The blade edge detector according to claim 6, characterized in that: The double-head laser probe comprises: a mounting base and a probe; A laser generator is arranged in the mounting seat, and after the laser generator is started, laser is emitted from the measuring head; The probes are two symmetrical measuring heads, the bottoms of the probes are crossed and a right-angle notch is left below the intersection for contacting the edge of the blade, a spacing is left between the tops of the probes and they are connected to the mounting seat, and the probes are in a V-shaped structure as a whole.

8. A blade edge detection method, characterized in that: The blade edge detector according to any one of claims 1 to 7 is used to detect the edge of the blade, and the method comprises the following steps: Step 1, obtaining the edge data of the blade; Install the measuring blade on the rotary mechanism so that the top of the measuring blade is parallel to the top of the control cabinet, adjust the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism so that the edge of the measuring blade contacts the measuring head; synchronize the measuring head and the X-axis moving mechanism, and the measuring blade is driven by the X-axis moving mechanism to make a linear motion. During this process, the measuring head detects the top edge of the measuring blade. After measuring the top edge of the measuring blade, adjust the rotary mechanism to detect other edges of the measuring blade; according to the structure of the measuring blade, you can choose to start the X-axis moving mechanism or the Y-axis moving mechanism to measure the edge of the measuring blade; Step 2: Analyze the acquired edge data; The measuring head sends the detected edge data to a memory, wherein the memory is provided with at least a first storage area, a second storage area, a third storage area and a fourth storage area; The first storage area stores edge data acquired in real time, and the second storage area stores a comparison module for determining whether the edge data acquired in real time exceeds a defect range; the third storage area is used to store qualified edge data, and the fourth storage area is used to store defective edge data; The comparison module is connected to the controller. When the measuring head completes the edge detection of a blade, the controller copies the data in the first storage area to the comparison module for defect analysis through the calling module, and sends the qualified data after analysis to the third storage area according to the first link, and sends the defective edge data to the fourth storage area according to the second link; By making statistics on the defect data in the fourth storage area or the data in the third storage area through the controller, it is possible to obtain whether the current blade meets the quality inspection requirements, and the final result is displayed on the display screen.

9. The blade edge detection method according to claim 8, characterized in that: The comparison module analyzes the edge detection data including: Divide all copied data into multiple regions, and then segment each region, that is, draw straight lines in each region, divide each region into multiple line segments, and try to make more data fall on a straight line when drawing straight lines. Then, based on the data on the straight line, calculate the strength and thickness of each straight line. Based on the strength and thickness of all straight lines in a region, calculate the strength and thickness of a region, and calculate the strength and thickness of all regions in turn, so as to obtain the strength and thickness of the entire blade; By comparing the strength and thickness of each area with the preset values, the judgment results of all areas can be obtained. Based on the judgment results of all areas, it can be determined whether the blade meets the standards, and the position of the area on the blade can be located and repaired according to the strength and thickness on each straight line in each area.

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