A lower flange plate type hole inspection gauge and inspection method

Abstract

The present application relates to the technical field of blade edge plate detection, and particularly relates to a lower edge plate type hole inspection gauge and an inspection method, comprising a measurement base plate, a type hole measurement mechanism and a lower edge plate positioning mechanism; the type hole measurement mechanism and the lower edge plate positioning mechanism are both arranged on the measurement base plate, the lower edge plate positioning mechanism is used for constraining the relative position of the lower edge plate and the type hole measurement mechanism, and the type hole measurement mechanism is movably connected with the measurement base plate; the relative position of the lower edge plate and the type hole measurement mechanism is constrained by the lower edge plate positioning mechanism, so that the size and position of the type hole on the lower edge plate at the corresponding position can be ensured to match the type hole measurement mechanism, and therefore, by comparing the type hole measurement mechanism with the type hole on the lower edge plate at the given position, whether the type hole on the lower edge plate is qualified can be judged, the structure is simple, the operation is convenient, and the detection requirement of the lower edge plate type hole is met.

Description

Technical Field

[0001] This invention relates to the field of blade edge plate inspection technology, specifically to a lower edge plate bore inspection tool and inspection method. Background Technology

[0002] Aircraft engines are the core components of aircraft, and blades are an important part of aircraft engines.

[0003] In the mass production of blades, some sets of blades have their fins and blades processed separately before being assembled together using welding and other techniques; (Reference) Figure 1 The flange has shaped holes that match the blade profile. The blade is assembled with the flange through two shaped holes on the flange. The position of the shaped holes on the flange affects the positioning of the blade during engine assembly, therefore, it is necessary to design a shaped hole position measuring tool to simulate and measure the flange.

[0004] Although Chinese invention patent application CN117450892A provides a detection device and inspection method for the arc of the blade edge plate, the detection device can realize the detection of the arc of the blade edge plate, but its structure is complex and the operation is cumbersome. Furthermore, it cannot inspect and measure the position of the forming hole on the edge plate, and cannot meet the requirement of detecting the forming hole of the lower edge plate. Summary of the Invention

[0005] The purpose of this invention is to provide a measuring tool and method for inspecting lower edge plate-shaped holes, thereby solving the current technical problem of difficulty in inspecting lower edge plate-shaped holes.

[0006] The solution of the present invention to the above-mentioned technical problems is as follows: A lower edge plate hole inspection measuring tool includes a measuring base plate, a hole measuring mechanism, and a lower edge plate positioning mechanism; Both the hole measuring mechanism and the lower edge plate positioning mechanism are mounted on the measuring base plate. The lower edge plate positioning mechanism is used to constrain the relative position of the lower edge plate and the hole measuring mechanism. The hole measuring mechanism is movably connected to the measuring base plate.

[0007] Further defined, the hole measuring mechanism includes a hole block, a measuring block, and a guide base; The guide base is mounted on the measuring base plate, and a guide groove matching the measuring block is provided on the guide base. The measuring block is slidably connected to the guide base through the guide groove. The shaped hole block is located at one end of the measuring block and faces the lower edge plate positioning mechanism.

[0008] Furthermore, the number of the hole measuring mechanisms is two, and the two hole measuring mechanisms are arranged at an interval.

[0009] Further defined, the lower edge plate positioning mechanism includes a B-side positioning seat and an A-side positioning seat, both of which are mounted on the measuring base plate. The A-side positioning seat is located on one side of the B-side positioning seat, and a double-inclined positioning surface is provided on the top of the A-side positioning seat, with the double-inclined positioning surface facing the B-side positioning seat.

[0010] Further specifying, the lower edge plate positioning mechanism also includes a first positioning seat and a second positioning seat, both of which are disposed on the measuring base plate. The first positioning seat is located between the B-side positioning seat and the guide base, and the first positioning seat is located between the second positioning seat and the A-side positioning seat. Both the first and second positioning seats are provided with positioning pins; the positioning pins are arranged in the same direction as the guide base.

[0011] Further specified, the first positioning seat is provided with two positioning pins, the two positioning pins are at the same height, and the two positioning pins are located above the B-side positioning seat; the top of the second positioning seat is provided with a positioning pin, the positioning pin is located above the first positioning seat, and the three positioning pins are coplanar.

[0012] Furthermore, the lower edge plate hole inspection measuring tool also includes a lower edge plate limiting mechanism, which is disposed on the measuring base plate. The lower edge plate positioning mechanism is located between the lower edge plate limiting mechanism and the hole measuring mechanism, and is used to limit the lower edge plate on the lower edge plate positioning mechanism.

[0013] Further defined, the lower edge plate limiting mechanism includes a first limiting seat and a second limiting seat. Both the first limiting seat and the second limiting seat are disposed on the measuring base plate. The first limiting seat faces the front end face of the B-side positioning seat. The B-side positioning seat is located between the first limiting seat and the first positioning seat. The second limiting seat is located on the other side of the B-side positioning seat and is opposite to the A-side positioning seat.

[0014] Further specified, both the first limiting seat and the second limiting seat are provided with limiting bolts, and the limiting end of the limiting bolt is provided with a pad, and the limiting bolt is perpendicular to the corresponding end face of the lower edge plate.

[0015] A method for inspecting lower edge plate-shaped holes, based on the aforementioned lower edge plate-shaped hole inspection measuring tool, includes the following steps: S1. Complete the installation of the inspection gauge for the lower edge plate hole; S2. Make the bottom surface of the lower edge plate contact the top of the B-side positioning seat, make the back surface of the lower edge plate contact the three positioning pins, and make the right side surface of the lower edge plate contact the double inclined positioning surface to complete the positioning of the lower edge plate. S3. Rotate the limiting bolts closer to the lower edge plate, so that the two limiting bolts limit the front and left sides of the lower edge plate respectively; S4. The measuring block drives the hole block to slide along the guide base close to the lower edge plate to determine whether the hole block matches the hole on the lower edge plate. If yes, the lower edge plate is qualified; otherwise, it is unqualified.

[0016] The beneficial effects of this invention are as follows: This invention utilizes a lower edge plate positioning mechanism to constrain the relative position of the lower edge plate and the hole measuring mechanism, thereby ensuring that the size and position of the hole measuring mechanism match the hole on the lower edge plate at the corresponding position. Therefore, by comparing the movable hole measuring mechanism with the hole on the lower edge plate at the predetermined position, it is possible to determine whether the hole on the lower edge plate is qualified. The structure is simple, the operation is convenient, and it meets the requirements for lower edge plate hole detection. Attached Figure Description

[0017] Figure 1 Here is a structural diagram of the existing lower edge plate; Figure 2 This is a structural diagram of the lower edge plate-type hole inspection measuring tool of the present invention; Figure 3 This is a structural diagram of the positioning seat on side B of the present invention; Figure 4 This is a structural diagram of the positioning seat on side A of the present invention; Figure 5 This is a structural diagram of the first positioning seat of the present invention; Figure 6 This is a structural diagram of the second positioning seat of the present invention; Figure 7 This is a structural diagram of the second limiting seat of the present invention; In the figure, 10-measuring substrate; 20-hole measuring mechanism; 21-hole block; 22-measuring block; 23-guide base; 30-lower edge plate positioning mechanism; 31-B-side positioning seat; 32-A-side positioning seat; 33-double inclined positioning surface; 34-first positioning seat; 35-second positioning seat; 36-positioning pin; 40-lower edge plate limiting mechanism; 41-first limiting seat; 42-second limiting seat; 43-limiting bolt; 44-pad; 45-pre-tightening hole; 50-lower edge plate; 51-left hole; 52-right hole. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] refer to Figure 1The lower edge plate 50 has shaped holes that are consistent with the blade shape. Taking two shaped holes as an example, the two shaped holes are left shaped hole 51 and right shaped hole 52. The purpose is to check whether the positions of left shaped hole 51 and right shaped hole 52 on the lower edge plate 50 are accurate and reliable.

[0020] Example 1 refer to Figure 2 This invention provides a lower edge plate hole inspection measuring tool, including a measuring base plate 10, a hole measuring mechanism 20, and a lower edge plate positioning mechanism 30. Both the hole measuring mechanism 20 and the lower edge plate positioning mechanism 30 are mounted on the measuring base plate 10. The lower edge plate positioning mechanism 30 constrains the relative position of the lower edge plate 50 and the hole measuring mechanism 20, fixing the position of the lower edge plate 50 on the measuring base plate 10, thereby determining the position of the hole on the measuring base plate 10 for easy hole inspection. The hole measuring mechanism 20 is movably connected to the measuring base plate 10. By moving the hole measuring mechanism 20 to engage with the hole on the lower edge plate 50, the accuracy of the hole opening can be determined. The tool has a simple structure, is easy to operate, and meets the requirements for hole inspection.

[0021] Specifically, the hole measuring mechanism 20 includes a hole block 21, a measuring block 22, and a guide base 23; the guide base 23 is disposed on the measuring base plate 10, and a guide groove matching the measuring block 22 is provided on the guide base 23. The measuring block 22 is slidably connected to the guide base 23 through the guide groove. The hole block 21 is disposed at one end of the measuring block 22, and the hole block 21 faces the lower edge plate positioning mechanism 30.

[0022] The hole block 21 matches the hole size on the lower edge plate 50. The guide base 23 is detachably mounted on the measuring base plate 10, which facilitates the adjustment of its installation position and direction. After the lower edge plate 50 is constrained by the lower edge plate positioning mechanism 30, its position on the measuring base plate 10 is determined. The measuring block 22 slides along the guide groove, driving the hole block 21 to move closer to the hole on the lower edge plate 50 to check the size and position of the hole. At this time, the position of the guide base 23 is determined according to the specifications of the lower edge plate 50.

[0023] When there are two holes on the lower edge plate 50, there are two hole measuring mechanisms 20. The two hole measuring mechanisms 20 are set at intervals so that the two hole measuring mechanisms 20 can inspect the holes at the same time, thereby improving the inspection efficiency and the accuracy of the results.

[0024] For further explanation, please refer to Figure 3 and Figure 4 To facilitate the position determination of the lower edge plate 50, the lower edge plate positioning mechanism 30 includes a B-side positioning seat 31 and an A-side positioning seat 32.

[0025] Both the B-side positioning seat 31 and the A-side positioning seat 32 are mounted on the measuring base plate 10, and are preferably detachably connected. The A-side positioning seat 32 is located to the right of the B-side positioning seat 31, and the top of the A-side positioning seat 32 is provided with a double inclined positioning surface 33, which faces the B-side positioning seat 31.

[0026] The double-sloping positioning surface 33 matches the A side of the lower edge plate 50, that is, the right side of the lower edge plate 50; the top of the B side positioning seat 31 matches the B side of the lower edge plate 50, that is, the bottom side of the lower edge plate 50; by adjusting the height of the B side positioning seat 31 and the position of the double-sloping positioning surface 33, the position of the lower edge plate 50 on the measuring substrate 10 is determined.

[0027] refer to Figure 5 and Figure 6 In order to ensure that the position of the lower edge plate 50 is fixed and to avoid inspection deviation caused by back and forth movement, preferably, the lower edge plate positioning mechanism 30 further includes a first positioning seat 34 and a second positioning seat 35, both of which are disposed on the measuring base plate 10.

[0028] The first positioning seat 34 is located between the B-side positioning seat 31 and the guide base 23. At this time, the first positioning seat 34 is located between the second positioning seat 35 and the A-side positioning seat 32, so that the first positioning seat 34 and the second positioning seat 35 can constrain the back side of the lower edge plate 50.

[0029] Preferably, both the first positioning seat 34 and the second positioning seat 35 are provided with positioning pins 36; the positioning pins 36 are arranged in the same direction as the guide base 23; the first positioning seat 34 is provided with two positioning pins 36, the two positioning pins 36 are located at the same height, and the two positioning pins 36 are located above the B-side positioning seat 31; the top of the second positioning seat 35 is provided with a positioning pin 36, the positioning pin 36 is located above the first positioning seat 34, and the three positioning pins 36 are coplanar, constraining the lower edge plate 50 from the bottom and top of the rear end face of the lower edge plate 50, constraining the lower edge plate 50 from three directions, and ensuring that the position constraint of the lower edge plate 50 is reliable.

[0030] To prevent the lower edge plate 50 from shaking during inspection, the lower edge plate hole inspection measuring tool preferably also includes a lower edge plate limiting mechanism 40. The lower edge plate limiting mechanism 40 is disposed on the measuring base plate 10, and the lower edge plate positioning mechanism 30 is located between the lower edge plate limiting mechanism 40 and the hole measuring mechanism 20. It is used to limit the lower edge plate on the lower edge plate positioning mechanism 30 to ensure that the position of the lower edge plate 50 is stable and does not shift.

[0031] To further explain, the lower edge plate limiting mechanism 40 includes a first limiting seat 41 and a second limiting seat 42, both of which are disposed on the measuring base plate 10.

[0032] The first limiting seat 41 faces the front end of the B-side positioning seat 31. The B-side positioning seat 31 is located between the first limiting seat 41 and the first positioning seat 34, so that the lower edge plate 50 is limited by the B-side positioning seat 31 at the bottom, the first positioning seat 34 on the back and the first limiting seat 41 at the front end. At the same time, the first limiting seat 41 pre-tightens the lower edge plate 50 in the front and back movement direction to prevent displacement.

[0033] refer to Figure 7 The second limiting seat 42 is located on the other side of the B-side positioning seat 31. The second limiting seat 42 is opposite to the A-side positioning seat 32, so that the second limiting seat 42 can pre-tighten the left side of the lower edge plate 50 to prevent the lower edge plate 50 from shifting in the left and right directions.

[0034] Preferably, both the first limiting seat 41 and the second limiting seat 42 are provided with pre-tightening holes 45, and both the first limiting seat 41 and the second limiting seat 42 are connected to limiting bolts 43 through the pre-tightening holes 45, and the limiting bolts 43 are threadedly connected to the pre-tightening holes 45.

[0035] The limiting end of the limiting bolt 43 is provided with a pad 44 for protecting the outer surface of the lower edge plate 50. The limiting bolt 43 faces the front end face and the side face of the lower edge plate 50 respectively. The second limiting seat 42 matches the inclined surface on the left side of the lower edge plate 50. Therefore, it is preferable that the end face of the second limiting seat 42 is inclined.

[0036] Example 2 Based on the lower edge plate-shaped hole inspection measuring tool provided in Embodiment 1, this embodiment provides a lower edge plate-shaped hole inspection method, including the following steps: S1. Complete the installation of the inspection gauge for the lower edge plate hole; S2. Make the bottom surface of the lower edge plate contact the top of the B-side positioning seat 31, make the back side of the lower edge plate contact the three positioning pins 36, and make the right side of the lower edge plate contact the double inclined positioning surface 33 to complete the positioning of the lower edge plate. S3. Rotate the limiting bolt 43 close to the lower edge plate so that the two limiting bolts 43 limit the front and left sides of the lower edge plate respectively; S4. The measuring block 22 drives the hole block 21 to slide along the guide base 23 close to the lower edge plate to determine whether the hole block 21 matches the hole on the lower edge plate. If yes, the lower edge plate is qualified; otherwise, it is unqualified.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

Claims

1. A measuring tool for inspecting holes in a lower edge plate, characterized in that, It includes a measuring substrate (10), a hole measuring mechanism (20), a lower edge plate positioning mechanism (30), and a lower edge plate limiting mechanism (40); The hole measuring mechanism (20) and the lower edge plate positioning mechanism (30) are both mounted on the measuring base plate (10). The lower edge plate positioning mechanism (30) is used to constrain the relative position of the lower edge plate and the hole measuring mechanism (20). The hole measuring mechanism (20) includes a hole block (21), a measuring block (22), and a guide base (23); The guide base (23) is set on the measuring base plate (10). The guide base (23) has a guide groove that matches the measuring block (22). The measuring block (22) is slidably connected to the guide base (23) through the guide groove. The shaped hole block (21) is set at one end of the measuring block (22). The shaped hole block (21) faces the lower edge plate positioning mechanism (30). The lower edge plate positioning mechanism (30) includes a B-side positioning seat (31) and an A-side positioning seat (32). Both the B-side positioning seat (31) and the A-side positioning seat (32) are mounted on the measuring base plate (10). The A-side positioning seat (32) is located on one side of the B-side positioning seat (31). The top of the A-side positioning seat (32) is provided with a double inclined positioning surface (33). The double inclined positioning surface (33) faces the B-side positioning seat (31). The double inclined positioning surface (33) matches the right side of the lower edge plate. The top of the B-side positioning seat (31) matches the bottom surface of the lower edge plate. The lower edge plate positioning mechanism (30) further includes a first positioning seat (34) and a second positioning seat (35). The first positioning seat (34) and the second positioning seat (35) are both disposed on the measuring base plate (10). The first positioning seat (34) is located between the B-side positioning seat (31) and the guide base (23), and the first positioning seat (34) is located between the second positioning seat (35) and the A-side positioning seat (32), so that the first positioning seat (34) and the second positioning seat (35) constrain the back side of the lower edge plate. The first positioning seat (34) and the second positioning seat (35) are both provided with positioning pins (36), the positioning pins (36) are arranged in the same direction as the guide base (23), and the positioning pins (36) are arranged on the same plane; The lower edge plate positioning mechanism (30) is located between the lower edge plate limiting mechanism (40) and the hole measuring mechanism (20); The lower edge plate limiting mechanism (40) includes a first limiting seat (41) and a second limiting seat (42) both disposed on the measuring base plate (10). The first limiting seat (41) faces the front end of the B-side positioning seat (31). The B-side positioning seat (31) is located between the first limiting seat (41) and the first positioning seat (34). The second limiting seat (42) is located on the other side of the B-side positioning seat (31). The second limiting seat (42) is opposite to the A-side positioning seat (32). The first limiting seat (41) and the second limiting seat (42) pre-tighten the front and left sides of the lower edge plate respectively. The measuring block (22) drives the shaped hole block (21) to slide along the guide base (23) close to the lower edge plate. It is determined whether the shaped hole block (21) matches the shaped hole on the lower edge plate.

2. The lower edge plate-type hole inspection measuring tool according to claim 1, characterized in that, The number of the hole measuring mechanism (20) is two, and the two hole measuring mechanisms (20) are arranged at intervals.

3. The lower edge plate-type hole inspection measuring tool according to claim 1, characterized in that, The first positioning seat (34) is provided with two positioning pins (36), the two positioning pins (36) are at the same height, and the two positioning pins (36) are located above the B-side positioning seat (31); the top of the second positioning seat (35) is provided with a positioning pin (36), the positioning pin (36) is located above the first positioning seat (34), and the three positioning pins (36) are coplanar.

4. The lower edge plate-type hole inspection measuring tool according to claim 3, characterized in that, Both the first limiting seat (41) and the second limiting seat (42) are provided with pre-tightening holes (45). Both the first limiting seat (41) and the second limiting seat (42) are connected to limiting bolts (43) through the pre-tightening holes (45). The limiting bolts (43) are threadedly connected to the pre-tightening holes (45). The limiting end of the limiting bolts (43) is provided with a pad (44). The limiting bolts (43) face the front end and the side of the lower edge plate, respectively.

5. A method for inspecting holes in a lower edge plate, characterized in that, The lower edge plate-type hole inspection gauge according to claim 4 includes the following steps: S1. Complete the installation of the inspection gauge for the lower edge plate hole; S2. Make the bottom surface of the lower edge plate contact the top of the B-side positioning seat (31), make the back side of the lower edge plate contact the three positioning pins (36), and make the right side of the lower edge plate contact the double inclined positioning surface (33) to complete the positioning of the lower edge plate. S3. Rotate the limiting bolt (43) close to the lower edge plate so that the two limiting bolts (43) limit the front and left sides of the lower edge plate respectively; S4. The measuring block (22) drives the hole block (21) to slide along the guide base (23) close to the lower edge plate. It is determined whether the hole block (21) matches the hole on the lower edge plate. If yes, the lower edge plate is qualified; otherwise, it is unqualified.

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