Detection c919 commercial aircraft damper frame part space curved surface profile degree detection tool

Abstract

The utility model relates to a kind of detection C919 commercial aircraft air door frame part space curved surface profile gauge, including bottom plate, support positioning rod, transition rod, pressboard, front end detection plate installation rod, front end detection plate, front through stop gauge, rear end detection plate installation rod, transition plate, rear end detection plate and rear through stop gauge;Left side detection component for detecting the left side curved surface profile of workpiece is installed in the left side of bottom plate, right side detection component for detecting the right side curved surface profile of workpiece is installed in the right side of bottom plate.The utility model can shorten detection time, improve detection efficiency, reduce detection cost and be easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology. Specifically, this utility model discloses a tool for detecting the spatial curved surface profile of the windshield frame parts of the C919 commercial aircraft. Background Technology

[0002] The C919 commercial aircraft's damper frame is a large, highly complex aluminum alloy casting with multiple spatial curved surfaces. The part measures 563×541×226mm, has a wall thickness of 2.66mm, and requires a surface contour accuracy of 1.52mm. For such a large, thin-walled aluminum alloy casting, the complex spatial curved surface structure is highly susceptible to deformation, posing a significant challenge to the testing methods for this type of structure.

[0003] Currently, CMM (Content Mirroring) is generally used to inspect the spatial surface profile of the damper frame parts of the C919 commercial aircraft. However, due to the complex spatial surface structure of this part and the dispersed surface features to be inspected, it takes about 2 hours to inspect one part with CMM, which is very inefficient. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a tool for inspecting the spatial curvature profile of the windshield frame parts of the C919 commercial aircraft.

[0005] According to the technical solution provided by this utility model, the inspection tool for detecting the spatial curved surface contour of the C919 commercial aircraft windshield frame part includes a base plate, a support positioning rod, a transition rod, a pressure plate, a front detection plate mounting rod, a front detection plate, a front go / no-go gauge, a rear detection plate mounting rod, a transition plate, a rear detection plate, and a rear go / no-go gauge. A support positioning rod for supporting and positioning the workpiece is fixed on the base plate. A transition rod is fixed on the base plate. A pressure plate for pressing the workpiece is fixed at the upper end of the transition rod. A front detection plate mounting rod is fixed at the front end of the base plate. A front detection plate is fixed at the upper end of the front detection plate mounting rod. The lower surface of the front detection plate matches the front curved surface contour of the workpiece. A rear end detection plate mounting rod is fixed at the rear end of the base plate, a transition plate is fixed at the upper end of the rear end detection plate mounting rod, and a rear end detection plate is fixed at the front end of the transition plate. The lower surface of the rear end detection plate matches the rear end curved surface contour of the workpiece. The front go-no-go gauge has a large end and a small end. The front go-no-go gauge cooperates with the front detection plate. The front go-no-go gauge is used to detect the front surface profile of the workpiece. The rear go-no-go gauge has a large end and a small end. The rear go-no-go gauge cooperates with the rear end detection plate. The rear go-no-go gauge is used to detect the rear end surface profile of the workpiece. A left detection component for detecting the left side profile of the workpiece is installed on the left side of the base plate, and a right detection component for detecting the right side profile of the workpiece is installed on the right side of the base plate.

[0006] Preferably, the left detection component includes a left detection plate, a left first go gauge, a left first no-go gauge, a left second go gauge, and a left second no-go gauge; A left detection plate is fixed on the left side of the base plate. A left first slot, a left guide slot and a left second slot are provided on the left detection plate. The left guide slot is located below the left first slot, and the left second slot is located below the left guide slot and cooperates with the left guide slot. The left first velocity gauge includes a left first velocity gauge base, a left first velocity gauge guide rod, a left first velocity gauge mounting rod, and a left first velocity gauge detection plate; the left first velocity gauge guide rod and the left first velocity gauge mounting rod are fixed on the right side of the left first velocity gauge base, the left first velocity gauge guide rod is located above the left first velocity gauge mounting rod, the left first velocity gauge guide rod and the left first velocity gauge mounting rod are arranged parallel to each other, and the left first velocity gauge detection plate is fixed at the right end of the left first velocity gauge mounting rod; The left first stop gauge includes a left first stop gauge seat, a left first stop gauge guide rod, a left first stop gauge mounting rod, and a left first stop gauge detection plate; the left first stop gauge guide rod and the left first stop gauge mounting rod are fixed on the right side of the left first stop gauge seat, the left first stop gauge guide rod is located above the left first stop gauge mounting rod, the left first stop gauge guide rod and the left first stop gauge mounting rod are arranged in parallel, and the left first stop gauge detection plate is fixed at the right end of the left first stop gauge mounting rod; The left second vo gauge includes a left second vo gauge base, a left second vo gauge guide rod, a left second vo gauge mounting rod, and a left second vo gauge detection plate; the left second vo gauge guide rod and the left second vo gauge mounting rod are fixed on the right side of the left second vo gauge base, the left second vo gauge guide rod is located above the left second vo gauge mounting rod, the left second vo gauge guide rod and the left second vo gauge mounting rod are arranged parallel to each other, and the left second vo gauge detection plate is fixed at the right end of the left second vo gauge mounting rod; The left second stop gauge includes a left second stop gauge seat, a left second stop gauge guide rod, a left second stop gauge mounting rod, and a left second stop gauge detection plate; the left second stop gauge guide rod and the left second stop gauge mounting rod are fixed on the right side of the left second stop gauge seat. The left second stop gauge guide rod is located above the left second stop gauge mounting rod, and the left second stop gauge guide rod and the left second stop gauge mounting rod are arranged in parallel. The left second stop gauge detection plate is fixed at the right end of the left second stop gauge mounting rod. The left first go gauge guide rod and the left first no-go gauge guide rod both cooperate with the upper side of the left detection plate. The left first go gauge guide rod and the left first no-go gauge mounting rod both cooperate with the left first slot on the left detection plate. The left first go gauge detection plate and the left first no-go gauge detection plate are used to detect the contour of the upper left curved surface of the workpiece. The left second go gauge guide rod and the left second no-go gauge guide rod both cooperate with the left guide groove, the left second go gauge mounting rod and the left second no-go gauge mounting rod both cooperate with the left second slot, and the left second go gauge detection plate and the left second no-go gauge detection plate are used to detect the contour of the lower left curved surface of the workpiece.

[0007] Preferably, the right-side detection component includes a right-side detection plate, a right-side first go gauge, a right-side first no-go gauge, a right-side second go gauge, and a right-side second no-go gauge; A right detection plate is fixed on the right side of the base plate. A right first slot, a right guide slot and a right second slot are provided on the right detection plate. The right guide slot is located below the right first slot, and the right second slot is located below the right guide slot and cooperates with the right guide slot. The right-side first velocity gauge includes a right-side first velocity gauge base, a right-side first velocity gauge guide rod, a right-side first velocity gauge mounting rod, and a right-side first velocity gauge detection plate. The right-side first velocity gauge guide rod and the right-side first velocity gauge mounting rod are fixed on the left side of the right-side first velocity gauge base. The right-side first velocity gauge guide rod is located above the right-side first velocity gauge mounting rod. The right-side first velocity gauge guide rod and the right-side first velocity gauge mounting rod are arranged in parallel. The right-side first velocity gauge detection plate is fixed at the right end of the right-side first velocity gauge mounting rod. The right-side first stop gauge includes a right-side first stop gauge seat, a right-side first stop gauge guide rod, a right-side first stop gauge mounting rod, and a right-side first stop gauge detection plate; the right-side first stop gauge guide rod and the right-side first stop gauge mounting rod are fixed on the left side of the right-side first stop gauge seat, the right-side first stop gauge guide rod is located above the right-side first stop gauge mounting rod, the right-side first stop gauge guide rod and the right-side first stop gauge mounting rod are arranged in parallel, and the right-side first stop gauge detection plate is fixed at the right end of the right-side first stop gauge mounting rod; The right-side second vo gauge includes a right-side second vo gauge base, a right-side second vo gauge guide rod, a right-side second vo gauge mounting rod, and a right-side second vo gauge detection plate. The right-side second vo gauge guide rod and the right-side second vo gauge mounting rod are fixed on the left side of the right-side second vo gauge base. The right-side second vo gauge guide rod is located above the right-side second vo gauge mounting rod. The right-side second vo gauge guide rod and the right-side second vo gauge mounting rod are arranged in parallel. The right-side second vo gauge detection plate is fixed at the right end of the right-side second vo gauge mounting rod. The right-side second stop gauge includes a right-side second stop gauge seat, a right-side second stop gauge guide rod, a right-side second stop gauge mounting rod, and a right-side second stop gauge detection plate; the right-side second stop gauge guide rod and the right-side second stop gauge mounting rod are fixed on the left side of the right-side second stop gauge seat, the right-side second stop gauge guide rod is located above the right-side second stop gauge mounting rod, the right-side second stop gauge guide rod and the right-side second stop gauge mounting rod are arranged in parallel, and the right-side second stop gauge detection plate is fixed at the right end of the right-side second stop gauge mounting rod; The right first go gauge guide rod and the right first no-go gauge guide rod both cooperate with the upper side of the right detection plate. The right first go gauge guide rod and the right first no-go gauge mounting rod both cooperate with the right first slot on the right detection plate. The right first go gauge detection plate and the right first no-go gauge detection plate are used to detect the right upper curved surface profile of the workpiece. The right second go gauge guide rod and the right second no-go gauge guide rod both cooperate with the right guide groove, the right second go gauge mounting rod and the right second no-go gauge mounting rod both cooperate with the right second slot, and the right second go gauge detection plate and the right second no-go gauge detection plate are used to detect the contour of the lower right curved surface of the workpiece.

[0008] Preferably, the right-side detection component includes a right-side detection plate, a right-side first card plate, and a right-side second card plate; The right first card plate includes a right first card plate base, a right first card plate guide rod, a right first card plate mounting rod, and a right first card plate detection plate; the right first card plate guide rod and the right first card plate mounting rod are fixed on the left side of the right first card plate base, the right first card plate guide rod is located above the right first card plate mounting rod, the right first card plate guide rod and the right first card plate mounting rod are arranged in parallel, and the right first card plate detection plate is fixed at the left end of the right first card plate mounting rod; The right-side second card plate includes a right-side second card plate base, a right-side second card plate guide rod, a right-side second card plate mounting rod, and a right-side second card plate detection plate; the right-side second card plate guide rod and the right-side second card plate mounting rod are fixed on the left side of the right-side second card plate base. The right-side second card plate guide rod is located above the right-side second card plate mounting rod, and the right-side second card plate guide rod and the right-side second card plate mounting rod are arranged in parallel. The right-side second card plate detection plate is fixed at the left end of the right-side second card plate mounting rod. A right detection plate is fixed on the right side of the base plate. A right first slot, a right guide slot and a right second slot are provided on the right detection plate. The right guide slot is located below the right first slot, and the right second slot is located below the right guide slot and cooperates with the right guide slot. The right first plate mounting rod is slidably inserted into the right first slot, the right first plate guide rod slides in contact with the upper side of the right detection plate, and the right first plate detection plate is used to detect the right upper curved surface profile of the workpiece. The right second plate guide rod is slidably inserted into the right guide groove, the right second plate mounting rod is slidably inserted into the right second slot, and the right second plate detection plate is used to detect the contour of the lower right curved surface of the workpiece.

[0009] Preferably, the upper end face of the support positioning rod is a stepped plane, and at least two support positioning rods are fixed to the rear side of the base plate with the stepped plane facing forward, and at least one support positioning rod is fixed to the front side of the base plate with the stepped plane facing left or right.

[0010] Preferably, the number of mounting rods on the front-end detection board is at least two.

[0011] Preferably, the number of the rear detection plate mounting rods is at least two, and each of the rear detection plate mounting rods has a connecting block mounting notch and a rotating shaft mounting hole at its upper end. The length direction of the connecting block mounting notch is horizontal in the front-to-back direction, and the length of the rotating shaft mounting hole is perpendicular to the length direction of the connecting block mounting notch and the rotating shaft mounting hole passes through the connecting block mounting notch.

[0012] Preferably, the device also includes a connecting block and a rotating shaft. A connecting block rotating shaft hole is provided on the connecting block. The connecting block is located within the connecting block mounting notch. The rotating shaft is installed in the rotating shaft mounting hole on the rear detection plate mounting rod and the connecting block rotating shaft hole on the connecting block. The transition plate is fixed to the connecting block.

[0013] Preferably, a transition plate insertion hole is provided on the rear detection plate, and the front end of the transition plate is inserted into the transition plate insertion hole on the rear detection plate.

[0014] This invention can shorten the detection time, improve the detection efficiency, reduce the detection cost, and is easy to operate. Attached Figure Description

[0015] Figure 1 This is one of the perspective views of this utility model.

[0016] Figure 2 This is the second perspective view of this utility model.

[0017] Figure 3 This is the third perspective view of this utility model.

[0018] Figure 4a This is a structural diagram of the first gauge on the left side in this utility model.

[0019] Figure 4b This is a structural diagram of the first stop gauge on the left side in this utility model.

[0020] Figure 5a This is a structural diagram of the second gauge on the left side in this utility model.

[0021] Figure 5b This is a structural diagram of the second stop gauge on the left side in this utility model.

[0022] Figure 6a This is a structural diagram of the first gauge on the right side of this utility model.

[0023] Figure 6b This is a structural diagram of the first stop gauge on the right side in this utility model.

[0024] Figure 7a This is a structural diagram of the second gauge on the right side of this utility model.

[0025] Figure 7b This is a structural diagram of the second stop gauge on the right side in this utility model.

[0026] Figure 8 This is one of the three-dimensional views of the utility model in use.

[0027] Figure 9 This is the second perspective view of the utility model in use.

[0028] Figure 10 This is the third perspective view of the utility model in use. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] A tool for inspecting the spatial curved surface profile of a damper frame component for the C919 commercial aircraft, such as... Figure 1-3 As shown, it includes a base plate 1, a support positioning rod 2, a transition rod 3, a pressure plate 4, a front detection plate mounting rod 5, a front detection plate 6, a front go / no-go gauge 7, a rear detection plate mounting rod 8, a transition plate 9, a rear detection plate 10, and a rear go / no-go gauge 11. A support positioning rod 2 for supporting and positioning the workpiece 100 is fixed on the base plate 1. A transition rod 3 is fixed on the base plate 1. A pressure plate 4 for pressing the workpiece 100 is fixed at the upper end of the transition rod 3. A front detection plate mounting rod 5 is fixed at the front end of the base plate 1. A front detection plate 6 is fixed at the upper end of the front detection plate mounting rod 5. The front detection plate 6 and the front detection plate mounting rod 5 are positioned by positioning pins and fixed together by fastening bolts. The lower surface of the front detection plate 6 matches the front curved surface contour of the workpiece 100. A rear detection plate mounting rod 8 is fixed at the rear end of the base plate 1. A transition plate 9 is fixed at the upper end of the rear detection plate mounting rod 8. The rear detection plate mounting rod 8 and the transition plate 9 are positioned by positioning pins and fixed together by fastening bolts. A rear detection plate 10 is fixed at the front end of the transition plate 9. The transition plate 9 and the rear detection plate 10 are positioned by positioning pins and fixed together by fastening bolts. The lower surface of the rear detection plate 10 matches the rear curved surface contour of the workpiece 100. The front go / no-go gauge 7 has a large end and a small end. The front go / no-go gauge 7 cooperates with the front detection plate 6. The front go / no-go gauge 7 is used to detect the front surface profile of the workpiece 100. In specific testing, only when the small end of the front go / no-go gauge 7 can be inserted into the gap between the front detection plate 6 and the front surface of the workpiece 100, and the large end of the front go / no-go gauge 7 cannot be inserted into the gap between the front detection plate 6 and the front surface of the workpiece 100, does it indicate that the front surface profile of the workpiece 100 meets the tolerance design requirements. All other test results indicate that the front surface profile of the workpiece 100 exceeds the tolerance design requirements. The rear go-no-go gauge 11 has a large end and a small end. The rear go-no-go gauge 11 cooperates with the rear end detection plate 10. The rear go-no-go gauge 11 is used to detect the rear end surface profile of the workpiece 100. In specific testing, only when the small end of the rear go-no-go gauge 11 can be inserted into the gap between the rear end detection plate 10 and the rear end surface of the workpiece 100, and the large end of the rear go-no-go gauge 11 cannot be inserted into the gap between the rear end detection plate 10 and the rear end surface of the workpiece 100, does it indicate that the rear end surface profile of the workpiece 100 meets the tolerance design requirements. All other test results indicate that the rear end surface profile of the workpiece 100 exceeds the tolerance design requirements. A left detection component for detecting the left surface profile of the workpiece 100 is installed on the left side of the base plate 1, and a right detection component for detecting the right surface profile of the workpiece 100 is installed on the right side of the base plate 1.

[0031] like Figure 4a , Figure 4b , Figure 5a and Figure 5bAs shown, the left detection component includes a left detection plate 12, a left first go gauge 13a, a left first stop gauge 13b, a left second go gauge 14a, and a left second stop gauge 14b; A left detection plate 12 is fixed on the left side of the base plate 1. A left first slot, a left guide slot and a left second slot are provided on the left detection plate 12. The left guide slot is located below the left first slot, and the left second slot is located below the left guide slot and the left second slot cooperates with the left guide slot. The left first velocity gauge 13a includes a left first velocity gauge base, a left first velocity gauge guide rod, a left first velocity gauge mounting rod, and a left first velocity gauge detection plate; the left first velocity gauge guide rod and the left first velocity gauge mounting rod are fixed on the right side of the left first velocity gauge base, the left first velocity gauge guide rod is located above the left first velocity gauge mounting rod, the left first velocity gauge guide rod and the left first velocity gauge mounting rod are arranged in parallel, and the left first velocity gauge detection plate is fixed at the right end of the left first velocity gauge mounting rod; The left first stop gauge 13b includes a left first stop gauge seat, a left first stop gauge guide rod, a left first stop gauge mounting rod, and a left first stop gauge detection plate; the left first stop gauge guide rod and the left first stop gauge mounting rod are fixed on the right side of the left first stop gauge seat, the left first stop gauge guide rod is located above the left first stop gauge mounting rod, the left first stop gauge guide rod and the left first stop gauge mounting rod are arranged in parallel, and the left first stop gauge detection plate is fixed at the right end of the left first stop gauge mounting rod; The left second gauge 14a includes a left second gauge base, a left second gauge guide rod, a left second gauge mounting rod, and a left second gauge detection plate; the left second gauge guide rod and the left second gauge mounting rod are fixed on the right side of the left second gauge base, the left second gauge guide rod is located above the left second gauge mounting rod, the left second gauge guide rod and the left second gauge mounting rod are arranged in parallel, and the left second gauge detection plate is fixed at the right end of the left second gauge mounting rod; The left second stop gauge 14b includes a left second stop gauge seat, a left second stop gauge guide rod, a left second stop gauge mounting rod, and a left second stop gauge detection plate; the left second stop gauge guide rod and the left second stop gauge mounting rod are fixed on the right side of the left second stop gauge seat, the left second stop gauge guide rod is located above the left second stop gauge mounting rod, the left second stop gauge guide rod and the left second stop gauge mounting rod are arranged in parallel, and the left second stop gauge detection plate is fixed at the right end of the left second stop gauge mounting rod; The left first go gauge guide rod and the left first no-go gauge guide rod both cooperate with the upper side of the left detection plate 12. The left first go gauge guide rod and the left first no-go gauge mounting rod both cooperate with the left first slot on the left detection plate 12. The left first go gauge detection plate and the left first no-go gauge detection plate are used to detect the left upper curved surface profile of the workpiece 100. The left second go gauge guide rod and the left second no-go gauge guide rod both cooperate with the left guide groove, and the left second go gauge mounting rod and the left second no-go gauge mounting rod both cooperate with the left second slot. The left second go gauge detection plate and the left second no-go gauge detection plate are used to detect the contour of the lower left curved surface of the workpiece 100.

[0032] like Figure 8-10 As shown, during the inspection, the left first gauge guide rod is first brought into contact with the upper side of the left inspection plate 12, and the left first gauge mounting rod on the left first gauge 13a is inserted into the left first slot on the left inspection plate 12. The left first gauge inspection plate then inspects the left upper curved surface profile of the workpiece 100.

[0033] Pull out the left first go gauge 13a, and bring the left first stop gauge guide rod on the left first stop gauge 13b into contact with the upper side of the left detection plate 12. Insert the left first stop gauge mounting rod on the left first stop gauge 13b into the left first slot on the left detection plate 12, and use the left first go gauge detection plate to detect the left upper curved surface profile of the workpiece 100.

[0034] If the right side of the left first go gauge seat can fit with the left side of the left detection plate 12 and the left first go gauge 13a can slide smoothly along the length direction of the left first slot, and the left first stop gauge 13b cannot slide smoothly along the length direction of the left first slot, or the right side of the left first stop gauge seat cannot fit with the left side of the left detection plate 12 when the left first stop gauge 13b slides along the length direction of the left first slot, then it indicates that the profile of the upper left curved surface of the workpiece 100 meets the tolerance design requirements. Other test results all indicate that the profile of the upper left curved surface of the workpiece 100 exceeds the tolerance design requirements.

[0035] Similarly, first insert the left second gauge guide rod on the left second gauge 14a into the left guide groove on the left detection plate 12, and insert the left second gauge mounting rod into the left second slot. Then, the left second gauge detection plate will detect the left lower curved surface profile of the workpiece 100.

[0036] Pull out the left second go gauge 14a, insert the left second stop gauge guide rod on the left second stop gauge 14b into the left guide groove on the left detection plate 12, and insert the left second stop gauge mounting rod into the left second slot. The left second stop gauge detection plate will then detect the left lower curved surface profile of the workpiece 100.

[0037] If the right side of the left second gauge seat on the left second gauge 14a can fit with the left side of the left detection plate 12 and the left second gauge 14a can slide smoothly along the length of the left second slot, and the left second stop gauge 14b cannot slide smoothly along the length of the left second slot, or the right side of the left second stop gauge seat cannot fit with the left side of the left detection plate 12 when the left second stop gauge 14b slides along the length of the left second slot, then it indicates that the profile of the lower left curved surface of the workpiece 100 meets the tolerance design requirements. Other test results all indicate that the profile of the lower left curved surface of the workpiece 100 exceeds the tolerance design requirements.

[0038] like Figure 6a , Figure 6b , Figure 7a and Figure 7b As shown, the right-side detection assembly includes a right-side detection plate 15, a right-side first go gauge 16a, a right-side first stop gauge 16b, a right-side second go gauge 17a, and a right-side second stop gauge 17b. A right detection plate 15 is fixed on the right side of the base plate 1. A right first slot, a right guide slot and a right second slot are provided on the right detection plate 15. The right guide slot is located below the right first slot, and the right second slot is located below the right guide slot and cooperates with the right guide slot. The right-side first gauge 16a includes a right-side first gauge base, a right-side first gauge guide rod, a right-side first gauge mounting rod, and a right-side first gauge detection plate; the right-side first gauge guide rod and the right-side first gauge mounting rod are fixed on the left side of the right-side first gauge base, the right-side first gauge guide rod is located above the right-side first gauge mounting rod, the right-side first gauge guide rod and the right-side first gauge mounting rod are arranged in parallel, and the right-side first gauge detection plate is fixed at the right end of the right-side first gauge mounting rod; The right first stop gauge 16b includes a right first stop gauge seat, a right first stop gauge guide rod, a right first stop gauge mounting rod, and a right first stop gauge detection plate; the right first stop gauge guide rod and the right first stop gauge mounting rod are fixed on the left side of the right first stop gauge seat, the right first stop gauge guide rod is located above the right first stop gauge mounting rod, the right first stop gauge guide rod and the right first stop gauge mounting rod are arranged in parallel, and the right first stop gauge detection plate is fixed at the right end of the right first stop gauge mounting rod; The right-side second gauge 17a includes a right-side second gauge base, a right-side second gauge guide rod, a right-side second gauge mounting rod, and a right-side second gauge detection plate; the right-side second gauge guide rod and the right-side second gauge mounting rod are fixed on the left side of the right-side second gauge base, the right-side second gauge guide rod is located above the right-side second gauge mounting rod, the right-side second gauge guide rod and the right-side second gauge mounting rod are arranged in parallel, and the right-side second gauge detection plate is fixed at the right end of the right-side second gauge mounting rod; The right-side second stop gauge 17b includes a right-side second stop gauge seat, a right-side second stop gauge guide rod, a right-side second stop gauge mounting rod, and a right-side second stop gauge detection plate; the right-side second stop gauge guide rod and the right-side second stop gauge mounting rod are fixed on the left side of the right-side second stop gauge seat, the right-side second stop gauge guide rod is located above the right-side second stop gauge mounting rod, the right-side second stop gauge guide rod and the right-side second stop gauge mounting rod are arranged in parallel, and the right-side second stop gauge detection plate is fixed at the right end of the right-side second stop gauge mounting rod; The right first go gauge guide rod and the right first no-go gauge guide rod both cooperate with the upper side of the right detection plate 15. The right first go gauge guide rod and the right first no-go gauge mounting rod both cooperate with the right first slot on the right detection plate 15. The right first go gauge detection plate and the right first no-go gauge detection plate are used to detect the right upper curved surface profile of the workpiece 100. The right second go gauge guide rod and the right second no-go gauge guide rod both cooperate with the right guide groove, and the right second go gauge mounting rod and the right second no-go gauge mounting rod both cooperate with the right second slot. The right second go gauge detection plate and the right second no-go gauge detection plate are used to detect the right lower curved surface profile of the workpiece 100.

[0039] like Figure 8-10 As shown, during the inspection, the guide rod of the first right-side gauge 16a on the right side is first brought into contact with the upper side of the right-side inspection plate 15, and the mounting rod of the first right-side gauge is inserted into the first right-side slot on the right-side inspection plate 15. The right-side upper curved surface profile of the workpiece 100 is then inspected by the right-side first gauge inspection plate.

[0040] Pull out the right first go gauge 16a, and bring the right first stop gauge guide rod on the right first stop gauge 16b into contact with the upper side of the right detection plate 15. Insert the right first stop gauge mounting rod on the right first stop gauge 16b into the right first slot on the right detection plate 15, and use the right first stop gauge detection plate to detect the right upper curved surface profile of the workpiece 100.

[0041] If the left side of the right first gauge seat on the right first gauge 16a can fit with the right side of the right detection plate 15 and the right first gauge 16a can slide smoothly along the length direction of the right first slot, and the right first stop gauge 16b cannot slide smoothly along the length direction of the right first slot, or the left side of the right first stop gauge seat cannot fit with the right side of the right detection plate 15 when the right first stop gauge 16b slides along the length direction of the right first slot, then it indicates that the right upper curved surface profile of the workpiece 100 meets the tolerance design requirements. Other test results all indicate that the right upper curved surface profile of the workpiece 100 exceeds the tolerance design requirements.

[0042] Similarly, first insert the guide rod of the second right gauge 17a on the right side into the guide groove on the right side of the detection plate 15, and insert the mounting rod of the second right gauge into the second right slot. Then, the lower right curved surface profile of the workpiece 100 is detected by the detection plate of the second right gauge.

[0043] Pull out the right second go gauge 17a, insert the right second stop gauge guide rod on the right second stop gauge 17b into the right guide groove on the right detection plate 15, and insert the right second stop gauge mounting rod into the right second slot. The right second stop gauge detection plate is used to detect the lower left curved surface profile of the workpiece 100.

[0044] If the left side of the right second gauge seat on the right second gauge 17a can fit with the right side of the right detection plate 15 and the right second gauge 17a can slide smoothly along the length of the right second slot, and the right second stop gauge 17b cannot slide smoothly along the length of the right second slot, or the left side of the right second stop gauge seat cannot fit with the right side of the right detection plate 15 when the right second stop gauge 17b slides along the length of the right second slot, then it indicates that the right lower curved surface profile of the workpiece 100 meets the tolerance design requirements. Other test results all indicate that the right lower curved surface profile of the workpiece 100 exceeds the tolerance design requirements.

[0045] The upper end face of the support positioning rod 2 is a stepped plane. At least two support positioning rods 2 are fixed to the rear side of the base plate 1 with the stepped plane facing forward, and at least one support positioning rod 2 is fixed to the front side of the base plate 1 with the stepped plane facing left or right.

[0046] The number of the front-end detection board mounting rods 5 is at least two.

[0047] The number of the rear-end detection plate mounting rods 8 is at least two. Each of the rear-end detection plate mounting rods 8 has a connecting block mounting notch and a rotating shaft mounting hole at its upper end. The length direction of the connecting block mounting notch is horizontal in the front-back direction. The length of the rotating shaft mounting hole is perpendicular to the length direction of the connecting block mounting notch and the rotating shaft mounting hole passes through the connecting block mounting notch.

[0048] It also includes a connecting block 18 and a rotating shaft 19. A connecting block rotating shaft hole is provided on the connecting block 18. The connecting block 18 is located in the connecting block mounting notch. The rotating shaft 19 is installed in the rotating shaft mounting hole on the rear detection plate mounting rod 8 and the connecting block rotating hole on the connecting block 18. The transition plate 9 is fixed to the connecting block 18. Remove the positioning pin and fastening screws so that the transition plate 9 and the rear detection plate 10 can rotate around the rotating shaft 19, which facilitates the disassembly and assembly of the rear detection plate 10.

[0049] A transition plate insertion hole is provided on the rear detection plate 10, and the front end of the transition plate 9 is inserted into the transition plate insertion hole on the rear detection plate 10.

[0050] This utility model applies the multi-point positioning principle to clamp the workpiece 100, and uses the front go / no-go gauge 7, rear go / no-go gauge 11, left first go gauge 13a, left first no-go gauge 13b, left second go gauge 14a, left second no-go gauge 14b, right first go gauge 16a, right first no-go gauge 16b, right second go gauge 17a and right second no-go gauge 17b to detect the spatial curved surface contour of the workpiece 100 (i.e., the windshield frame part of the C919 commercial aircraft). It is convenient to operate, flexible and efficient in detection, and greatly reduces the detection cost.

[0051] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fixture for inspecting the spatial curved surface profile of a damper frame part for the C919 commercial aircraft, characterized in that: Includes base plate (1), support positioning rod (2), transition rod (3), pressure plate (4), front detection plate mounting rod (5), front detection plate (6), front go / no-go gauge (7), rear detection plate mounting rod (8), transition plate (9), rear detection plate (10) and rear go / no-go gauge (11); A support positioning rod (2) for supporting and positioning the workpiece is fixed on the base plate (1). A transition rod (3) is fixed on the base plate (1). A pressure plate (4) for pressing the workpiece is fixed at the upper end of the transition rod (3). A front detection plate mounting rod (5) is fixed at the front end of the base plate (1). A front detection plate (6) is fixed at the upper end of the front detection plate mounting rod (5). The lower surface of the front detection plate (6) matches the front curved surface contour of the workpiece. A rear end detection plate mounting rod (8) is fixed at the rear end of the base plate (1), a transition plate (9) is fixed at the upper end of the rear end detection plate mounting rod (8), and a rear end detection plate (10) is fixed at the front end of the transition plate (9). The lower surface of the rear end detection plate (10) matches the rear end curved surface contour of the workpiece. The front go-no-go gauge (7) has a large end and a small end. The front go-no-go gauge (7) cooperates with the front detection plate (6). The front go-no-go gauge (7) is used to detect the front surface profile of the workpiece. The rear go-no-go gauge (11) has a large end and a small end. The rear go-no-go gauge (11) cooperates with the rear end detection plate (10). The rear go-no-go gauge (11) is used to detect the rear end surface profile of the workpiece. A left detection component for detecting the left surface profile of a workpiece is installed on the left side of the base plate (1), and a right detection component for detecting the right surface profile of a workpiece is installed on the right side of the base plate (1).

2. The inspection fixture for detecting the spatial curved surface profile of the C919 commercial aircraft damper frame parts as described in claim 1, characterized in that: The left detection component includes a left detection plate (12), a left first go gauge (13a), a left first stop gauge (13b), a left second go gauge (14a), and a left second stop gauge (14b). A left detection plate (12) is fixed on the left side of the base plate (1). A left first slot, a left guide slot and a left second slot are provided on the left detection plate (12). The left guide slot is located below the left first slot, and the left second slot is located below the left guide slot and the left second slot cooperates with the left guide slot. The left first velocity gauge (13a) includes a left first velocity gauge seat, a left first velocity gauge guide rod, a left first velocity gauge mounting rod, and a left first velocity gauge detection plate; the left first velocity gauge guide rod and the left first velocity gauge mounting rod are fixed on the right side of the left first velocity gauge seat, the left first velocity gauge guide rod is located above the left first velocity gauge mounting rod, the left first velocity gauge guide rod and the left first velocity gauge mounting rod are arranged in parallel, and the left first velocity gauge detection plate is fixed at the right end of the left first velocity gauge mounting rod; The left first stop gauge (13b) includes a left first stop gauge seat, a left first stop gauge guide rod, a left first stop gauge mounting rod, and a left first stop gauge detection plate; the left first stop gauge guide rod and the left first stop gauge mounting rod are fixed on the right side of the left first stop gauge seat. The left first stop gauge guide rod is located above the left first stop gauge mounting rod. The left first stop gauge guide rod and the left first stop gauge mounting rod are arranged in parallel. The left first stop gauge detection plate is fixed at the right end of the left first stop gauge mounting rod. The left second gauge (14a) includes a left second gauge base, a left second gauge guide rod, a left second gauge mounting rod, and a left second gauge detection plate; the left second gauge guide rod and the left second gauge mounting rod are fixed on the right side of the left second gauge base, the left second gauge guide rod is located above the left second gauge mounting rod, the left second gauge guide rod and the left second gauge mounting rod are arranged in parallel, and the left second gauge detection plate is fixed at the right end of the left second gauge mounting rod; The left second stop gauge (14b) includes a left second stop gauge seat, a left second stop gauge guide rod, a left second stop gauge mounting rod, and a left second stop gauge detection plate; the left second stop gauge guide rod and the left second stop gauge mounting rod are fixed on the right side of the left second stop gauge seat. The left second stop gauge guide rod is located above the left second stop gauge mounting rod. The left second stop gauge guide rod and the left second stop gauge mounting rod are arranged in parallel. The left second stop gauge detection plate is fixed at the right end of the left second stop gauge mounting rod. The left first go gauge guide rod and the left first stop gauge guide rod are both engaged with the upper side of the left detection plate (12). The left first go gauge guide rod and the left first stop gauge mounting rod are both engaged with the left first slot on the left detection plate (12). The left first go gauge detection plate and the left first stop gauge detection plate are used to detect the left upper curved surface profile of the workpiece. The left second go gauge guide rod and the left second no-go gauge guide rod both cooperate with the left guide groove, the left second go gauge mounting rod and the left second no-go gauge mounting rod both cooperate with the left second slot, and the left second go gauge detection plate and the left second no-go gauge detection plate are used to detect the contour of the lower left curved surface of the workpiece.

3. The inspection fixture for detecting the spatial curved surface profile of the damper frame parts of the C919 commercial aircraft as described in claim 1, characterized in that: The right-side detection assembly includes a right-side detection plate (15), a right-side first go gauge (16a), a right-side first no-go gauge (16b), a right-side second go gauge (17a), and a right-side second no-go gauge (17b). A right detection plate (15) is fixed on the right side of the base plate (1). A right first slot, a right guide slot and a right second slot are provided on the right detection plate (15). The right guide slot is located below the right first slot, and the right second slot is located below the right guide slot and the right second slot cooperates with the right guide slot. The right-side first velocity gauge (16a) includes a right-side first velocity gauge seat, a right-side first velocity gauge guide rod, a right-side first velocity gauge mounting rod, and a right-side first velocity gauge detection plate; the right-side first velocity gauge guide rod and the right-side first velocity gauge mounting rod are fixed on the left side of the right-side first velocity gauge seat, the right-side first velocity gauge guide rod is located above the right-side first velocity gauge mounting rod, the right-side first velocity gauge guide rod and the right-side first velocity gauge mounting rod are arranged in parallel, and the right-side first velocity gauge detection plate is fixed at the right end of the right-side first velocity gauge mounting rod; The right-side first stop gauge (16b) includes a right-side first stop gauge seat, a right-side first stop gauge guide rod, a right-side first stop gauge mounting rod, and a right-side first stop gauge detection plate; the right-side first stop gauge guide rod and the right-side first stop gauge mounting rod are fixed on the left side of the right-side first stop gauge seat, the right-side first stop gauge guide rod is located above the right-side first stop gauge mounting rod, the right-side first stop gauge guide rod and the right-side first stop gauge mounting rod are arranged in parallel, and the right-side first stop gauge detection plate is fixed at the right end of the right-side first stop gauge mounting rod; The right-side second gauge (17a) includes a right-side second gauge base, a right-side second gauge guide rod, a right-side second gauge mounting rod, and a right-side second gauge detection plate; the right-side second gauge guide rod and the right-side second gauge mounting rod are fixed on the left side of the right-side second gauge base, the right-side second gauge guide rod is located above the right-side second gauge mounting rod, the right-side second gauge guide rod and the right-side second gauge mounting rod are arranged in parallel, and the right-side second gauge detection plate is fixed at the right end of the right-side second gauge mounting rod; The right-side second stop gauge (17b) includes a right-side second stop gauge seat, a right-side second stop gauge guide rod, a right-side second stop gauge mounting rod, and a right-side second stop gauge detection plate; the right-side second stop gauge guide rod and the right-side second stop gauge mounting rod are fixed on the left side of the right-side second stop gauge seat, the right-side second stop gauge guide rod is located above the right-side second stop gauge mounting rod, the right-side second stop gauge guide rod and the right-side second stop gauge mounting rod are arranged in parallel, and the right-side second stop gauge detection plate is fixed at the right end of the right-side second stop gauge mounting rod; The right first go gauge guide rod and the right first stop gauge guide rod are both engaged with the upper side of the right detection plate (15). The right first go gauge guide rod and the right first stop gauge mounting rod are both engaged with the right first slot on the right detection plate (15). The right first go gauge detection plate and the right first stop gauge detection plate are used to detect the right upper curved surface profile of the workpiece. The right second go gauge guide rod and the right second no-go gauge guide rod both cooperate with the right guide groove, the right second go gauge mounting rod and the right second no-go gauge mounting rod both cooperate with the right second slot, and the right second go gauge detection plate and the right second no-go gauge detection plate are used to detect the contour of the lower right curved surface of the workpiece.

4. The inspection fixture for detecting the spatial curved surface profile of the damper frame parts of the C919 commercial aircraft as described in claim 1, characterized in that: The upper end face of the support positioning rod (2) is a stepped plane. At least two support positioning rods (2) are fixed to the rear side of the base plate (1) and the stepped plane is facing forward. At least one support positioning rod (2) is fixed to the front side of the base plate (1) and the stepped plane is facing left or right.

5. The inspection fixture for detecting the spatial curved surface profile of the damper frame parts of the C919 commercial aircraft as described in claim 1, characterized in that: The number of the front-end detection board mounting rods (5) is at least two.

6. The inspection fixture for detecting the spatial curved surface profile of the damper frame parts of the C919 commercial aircraft as described in claim 1, characterized in that: The number of the rear detection plate mounting rods (8) is at least two. Each rear detection plate mounting rod (8) has a connecting block mounting notch and a rotating shaft mounting hole at its upper end. The length direction of the connecting block mounting notch is horizontal in the front-to-back direction. The length of the rotating shaft mounting hole is perpendicular to the length direction of the connecting block mounting notch and the rotating shaft mounting hole passes through the connecting block mounting notch.

7. The inspection fixture for detecting the spatial curved surface profile of the damper frame parts of the C919 commercial aircraft as described in claim 6, characterized in that: It also includes a connecting block (18) and a rotating shaft (19). A connecting block rotating shaft hole is provided on the connecting block (18). The connecting block (18) is located in the connecting block mounting notch. The rotating shaft (19) is installed in the rotating shaft mounting hole on the rear end detection plate mounting rod (8) and the connecting block rotating shaft hole on the connecting block (18). The transition plate (9) is fixed to the connecting block (18).

8. The inspection fixture for detecting the spatial curved surface profile of the damper frame parts of the C919 commercial aircraft as described in claim 1, characterized in that: in The rear detection board (10) has a transition plate insertion hole, and the front end of the transition plate (9) is inserted into the transition plate insertion hole on the rear detection board (10).

Images