Tool and method for solid engine bolt positioning detection

Abstract

The invention discloses a tool and method for solid engine bolt positioning detection, and relates to the field of solid engine detection, and the tool comprises a detection block, a flexible connecting plate, and a bolt detection tool. The flexible connecting plate is used for bending in the length direction of the flexible connecting plate. The number of the detection blocks is the same as the number of bolts of the solid engine to be detected. The multiple detection blocks are sequentially connected to the same side of the flexible connecting plate in the length direction of the flexible connecting plate, the sides, away from the flexible connecting plate, of the detection blocks are connected with bolt detection tools, the bolt detection tools are provided with detection holes, and the detection holes are used for being arranged on the outer sides of solid engine bolts in a sleeving mode so as to position the positions of the solid engine bolts and determine the specifications of the bolts. And the assembly position of the bolt can be detected. And the dependence on manual inspection is solved.

Description

Technical Field

[0001] The invention relates to the field of solid engine detection, in particular to a tool used for solid engine bolt positioning detection to ensure the assembly quality of the product. Background Art

[0002] The combustion chamber and nozzle of a certain type of engine are flange-connected. Three bolts of different specifications are needed during the connection process: flat-head bolts, stud bolts and positioning bolts. The number and positions of the three bolts are inconsistent. In addition to fixing the nozzle, the three bolts are also responsible for the connection and fixing of the overall tail compartment. The correctness of the number and position of the bolt assembly are related to the quality of the engine. If there is a mistake, the overall tail compartment will inevitably fail to assemble, causing a quality accident.

[0003] At present, the positioning inspection of bolts is completed by manual visual inspection, which requires personnel to move around the nozzle for inspection, and there is a situation where the nozzle expansion section is blocked. In addition, manual visual inspection may cause omissions, which is easy to cause quality accidents.

[0004] During the inspection process, the traditional manual visual inspection method is prone to obstruction of the nozzle expansion section components and omissions, which can easily cause quality accidents. Summary of the invention

[0005] The technical problem solved by the present application is: to overcome the deficiencies of the prior art and provide a tool for detecting the positioning of bolts of a solid engine, by which the bolt positioning detection tool can be used to detect the assembly position of the bolts, thereby eliminating the reliance on manual inspection.

[0006] The technical solutions provided by this application are as follows:

[0007] A tool for solid engine bolt positioning detection, comprising a check block, a flexible connecting plate and a bolt check fixture; the flexible connecting plate is used to bend along its own length direction; a plurality of check blocks are provided, and the number of the check blocks is the same as the number of bolts of the solid engine to be tested; along the length direction of the flexible connecting plate, the plurality of check blocks are sequentially connected to the same side of the flexible connecting plate, the side of the check block facing away from the flexible connecting plate is connected to the bolt check fixture, the bolt check fixture is provided with a measuring hole, the measuring hole is used to be sleeved on the outside of the solid engine bolt, so as to locate the position of the solid engine bolt and determine the specification of the bolt.

[0008] The flexible connecting plate is provided with a plurality of fixing holes in sequence along its length direction, and a locking bolt hole is provided on one side of the inspection block facing the flexible connecting plate. The locking screw passes through the fixing hole and is threadedly connected to the locking bolt hole of the inspection block.

[0009] A flexible connecting plate groove is provided on one side of the inspection block facing the flexible connecting plate, and the flexible connecting plate is clamped in the flexible connecting plate groove.

[0010] A pressure groove is provided on the surface of the inspection block perpendicular to the axis of the measuring hole, and a pressure strip is installed in the tooth groove, and the pressure strip is flexible or rigid.

[0011] The pressing groove includes a first pressing groove and a second pressing groove. A tightening bolt hole is also provided on the side of the inspection block connected to the pressure strip. The first pressing groove and the second pressing groove are respectively located on the inner side and the outer side of the tightening bolt hole, and the curvature of the first pressing groove and the second pressing groove are different. The pressure strip is arranged in the first pressing groove or the second pressing groove. A flat washer is provided on the outside of the side of the inspection block connected to the pressure strip. The tightening bolt passes through the flat washer and is threadedly connected to the tightening bolt hole of the inspection block, so that the pressure strip is tightened in the first pressing groove or the second pressing groove through the flat washer.

[0012] A dovetail groove is provided on a side of the inspection block opposite to the flexible connecting plate groove, and the length direction of the dovetail groove is perpendicular to the axis of the clamping bolt hole and the locking bolt hole; the bolt inspection fixture includes a measuring plate and a clamp, the side plate is fixedly connected to the clamp, the measuring hole is provided on the measuring plate, and the clamp cooperates with the dovetail groove.

[0013] The clamp is a U-shaped structure, and the open ends of the U-shaped structure are bent in directions away from each other so that the open ends of the U-shaped structure are matched with the dovetail groove.

[0014] A method for detecting the positioning of bolts of a solid engine, using any of the above-mentioned tools for detecting the positioning of bolts of a solid engine for detection, comprising:

[0015] Determine the bolt gauge for the corresponding measuring hole according to the specifications of the bolt to be tested;

[0016] Select a flexible layering strip and assemble the various parts of the structure to obtain a flexible annular tooling with an opening;

[0017] Starting from one end of the annular tool opening, the bolt inspection fixture is sequentially sleeved on the solid transmitter bolts to detect the specifications and positions of all bolts.

[0018] A method for detecting the positioning of bolts of a solid engine, using any of the above-mentioned tools for detecting the positioning of bolts of a solid engine for detection, comprising:

[0019] Determine the bolt gauge for the corresponding measuring hole according to the specifications of the bolt to be tested;

[0020] If a rigid layering strip is selected, assemble the various parts of the structure to obtain two semi-circular toolings;

[0021] The two semi-annular toolings are sequentially mounted on the solid engine bolts to detect the specifications and positions of all the bolts.

[0022] In summary, this application at least includes the following beneficial technical effects:

[0023] 1. Able to detect bolts of different specifications that are not in the same pitch circle position

[0024] The traditional manual visual inspection method requires manual identification of the position and specifications of the bolts. The bolt positioning inspection tool can be portable and replace bolt inspection tools of different sizes to achieve the inspection of bolts of different specifications and positions that are not in the same pitch circle.

[0025] 2. Can be used for the detection of solid engine bolts with different diameters

[0026] By conveniently replacing inspection blocks and pressure strips of different specifications, bolt positioning inspection tooling with different pitch circles can be combined to realize the inspection of solid engine bolts with different diameters.

[0027] 3. Solve the problem of blocking the nozzle expansion section components

[0028] If the bolt positioning detection tooling is semi-circular, it can be put on the outside of the bolts of the solid engine from the side; if it is a flexible annular tooling, the bolt inspection fixture can be put on the outside of the solid engine bolts one by one to solve the problem of obstruction of the nozzle expansion section components during manual visual inspection.

[0029] 4. Improve the efficiency and quality of bolt positioning detection

[0030] The manual inspection method requires personnel to move around the nozzle for inspection, which is labor-intensive and may result in missed inspections. However, using the solid engine bolt positioning inspection tool, all bolts can be inspected by simply installing the tool in place. There is no omission, and the inspection speed is fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the main view of the skirt end bolt detection tooling;

[0032] Figure 2 This is a side sectional view of the skirt end bolt inspection tooling;

[0033] Figure 3 It is a structural diagram of the inspection block;

[0034] Figure 4 It is a structural schematic diagram of the flexible connecting plate;

[0035] Figure 5 It is a schematic diagram of the structure of the rigid layering;

[0036] Figure 6 It is a structural diagram of a bolt inspection fixture;

[0037] Figure 7 It is a schematic diagram of different pitch circles of the bolt to be tested;

[0038] Figure 8 It is a schematic diagram of different numbers of bolts to be tested;

[0039] Fig. 9 It is a schematic diagram of the special requirements for the bolts to be tested.

[0040] Explanation of the numbers in the attached figures: 1. Check block; 2. Locking screw; 3. Flat washer; 4. Clamping bolt; 5. Flexible connecting plate; 6. Pressure strip; 7. Bolt check fixture; 71. Test plate; 711. Test hole; 72. Clamp;

[0041] 11. First pressing groove; 12. Second pressing groove; 13. Clamping bolt hole; 14. Flexible connecting plate groove; 15. Locking bolt hole; 16. Dovetail groove. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments disclosed in the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] The present application embodiment discloses a tool for detecting the positioning of bolts of a solid engine, such as Figure 1 and Figure 2 As shown, it includes a check block 1, a locking screw 2, a flat washer 3, a clamping bolt 4, a flexible connecting plate 5, a pressure strip 6 and a bolt check fixture 7. The pressure strip 6 is a flexible or rigid pressure strip.

[0044] like Figure 1 , Figure 2 and Figure 4 As shown, the flexible connecting plate 5 is provided with a plurality of fixing holes in sequence along its length direction, and the flexible connecting plate 5 can be bent along its length direction; a plurality of check blocks 1 are provided, and the number of check blocks 1 is the same as the number of bolts of the solid engine to be tested. The locking screw 2 passes through the fixing hole and is threadedly connected to the locking bolt hole 15 of the check block 1, so that the plurality of check blocks 1 are connected to the same side of the flexible connecting plate 5 through the fixing hole, and the side of the check block 1 facing away from the flexible connecting plate 5 is connected with a bolt gauge 7, and the bolt gauge 7 is provided with a measuring hole, which is used to be set on the outside of the solid engine bolt, so as to locate the position of the solid engine bolt.

[0045] like Figure 3 As shown, a flexible connecting plate groove 14 is formed on the side of the inspection block 1 facing the flexible connecting plate 5 , and the flexible connecting plate 5 is clamped in the flexible connecting plate groove 14 of each inspection block 1 .

[0046] The surface of the inspection block 1 perpendicular to the axis of the measuring hole is connected to the pressure strip 6. A clamping bolt hole 13, a first pressure groove 11 and a second pressure groove 12 are provided on the side of the inspection block 1 connected to the pressure strip 6. The first pressure groove 11 and the second pressure groove 12 are respectively located on the inner and outer sides of the clamping bolt hole 13, and the first pressure groove 11 and the second pressure groove 12 have different curvatures. During installation, according to the diameter of the solid engine, it is determined whether the pressure strip 6 is installed in the first pressure groove 11 or the second pressure groove 12. After the pressure strip 6 is installed in the first pressure groove 11 or the second pressure groove 12, the flat washer 3 is pressed against the outer side of the pressure strip 6, and then the clamping bolt 4 is passed through the flat washer 3 and threadedly connected to the clamping bolt hole 13 of the inspection block 1 until the clamping bolt 4 clamps the flat washer 3. At this time, the flat washer 3 clamps the pressure strip 6 in the first pressure groove 11 or the second pressure groove 12.

[0047] like Figure 5 As shown, when the pressure strip 6 is flexible, since both the pressure strip 6 and the flexible connecting plate 5 are flexible, the formed tooling is flexible, but since the pressure strip 6 and the flexible connecting plate 5 are respectively connected to different surfaces of the inspection block 1, the pressure strip 6 and the flexible connecting plate 5 are used together to correct and improve the roundness of the tooling to a certain extent.

[0048] When the pressure strip 6 is rigid, the pressure strip 6 is used to guide the inspection block 1, so that the inspection block 1 is arranged along a more precise circumference, and the roundness of the tooling is higher. However, when a rigid pressure strip 6 is used, the tooling needs to be formed into two semicircular toolings, and the semicircular tooling can be held to rotate the bolts from the outside of the solid engine, which is used to detect the bolts of smaller solid engines.

[0049] A dovetail groove 16 is provided on a side of the check block 1 opposite to the flexible connecting plate groove 14, and the length direction of the dovetail groove 16 is perpendicular to the axis of the clamping bolt hole 13 and the locking bolt hole 15. This structure facilitates the replacement of bolt check fixtures 7 with measuring holes of different diameters.

[0050] like Figure 6 As shown, the bolt inspection fixture 7 includes a measuring plate 71 and a clamp 72, the side plate is fixedly connected to the clamp, a measuring hole 711 is opened on the measuring plate 71, the clamp is a U-shaped structure, and the open ends of the U-shaped structure are bent in a direction away from each other so that the open ends of the U-shaped structure cooperate with the dovetail groove 16.

[0051] The bolt inspection fixture 7 is used to inspect the bolt position. The tail portion adopts a snap-on structure, which can ensure good positioning under the support of high-toughness materials. The snap-on structure is also easy to replace.

[0052] The flexible connecting plate 5 is used for connecting the inspection block 1. The holes of the flexible connecting plate 5 can be used to position the inspection block 1. When installing the inspection block 1, different numbers of holes can be installed according to actual requirements. The flexible connecting plate 5 can be connected through the fixed holes at will, so that for various types of solid engines, the specifications of the tooling can be adjusted through the connection of the flexible connecting plate 5.

[0053] When using the above-mentioned tooling to perform bolt positioning detection, it includes:

[0054] like Figure 7 and Figure 8 As shown, according to the specifications of the bolts to be tested, the bolt inspection fixture 7 corresponding to the measuring hole is determined;

[0055] Select a flexible layering strip 6 and assemble the various parts of the structure to obtain a flexible annular tooling with an opening;

[0056] Starting from one end of the annular tool opening, the bolt gauge 7 is sequentially sleeved on the solid transmitter bolts to detect the specifications and positions of all bolts. If all bolts just enter the measuring holes, the bolt specifications and positions are correct; if the bolts cannot enter the measuring holes, the bolt specifications are too large or the position deviation is too large; if the bolts differ too much from the measured and controlled diameters, the bolt specifications are incorrect.

[0057] like Fig. 9 As shown, based on the above steps, a rigid pressure strip 6 can be selected, two flexible connecting plates 5 can be set, and the various parts of the structure are assembled to obtain two semi-annular tooling;

[0058] Manually set two semi-annular tooling sleeves on the outside of the solid transmitter bolts to detect the specifications and positions of all bolts.

[0059] The contents not described in detail in this application specification belong to the common knowledge of those skilled in the art.

[0060] The present application is described in detail above in conjunction with specific implementation methods and exemplary examples, but these descriptions cannot be understood as limiting the present application. Those skilled in the art understand that, without departing from the spirit and scope of the present application, a variety of equivalent replacements, modifications or improvements can be made to the technical solution of the present application and its implementation methods, all of which fall within the scope of the present application. The scope of protection of the present application shall be subject to the attached claims.

Claims

1. A tool for solid engine bolt positioning detection, characterized by: The invention comprises a check block (1), a flexible connecting plate (5) and a bolt check fixture (7); the flexible connecting plate (5) is used to bend along its own length direction; a plurality of check blocks (1) are provided, and the number of the check blocks (1) is the same as the number of bolts of the solid engine to be tested; along the length direction of the flexible connecting plate (5), the plurality of check blocks (1) are sequentially connected to the same side of the flexible connecting plate (5); a bolt check fixture (7) is connected to the side of the check block (1) facing away from the flexible connecting plate (5); the bolt check fixture (7) is provided with a measuring hole, and the measuring hole is used to be sleeved on the outside of the bolt of the solid engine to locate the position of the solid engine bolt and determine the specification of the bolt.

2. A tool for solid engine bolt positioning detection according to claim 1, characterized in that: The flexible connecting plate (5) is provided with a plurality of fixing holes in sequence along its length direction, and a locking bolt hole (15) is provided on one side of the inspection block (1) facing the flexible connecting plate (5), and the locking screw (2) passes through the fixing hole and is threadedly connected to the locking bolt hole (15) of the inspection block (1).

3. The tool for solid engine bolt positioning detection according to claim 1, characterized in that: A flexible connecting plate groove (14) is provided on one side of the inspection block (1) facing the flexible connecting plate (5), and the flexible connecting plate (5) is clamped in the flexible connecting plate groove (14).

4. The tool for solid fuel engine bolt positioning detection according to claim 1, characterized in that: The surface of the inspection block (1) perpendicular to the axis of the measuring hole is provided with a pressure groove, and a pressure strip (6) is installed in the groove, and the pressure strip (6) is flexible or rigid.

5. The tool for solid fuel engine bolt positioning detection according to claim 4, characterized in that: The pressing groove comprises a first pressing groove (11) and a second pressing groove (12); a clamping bolt hole (13) is also provided on the side of the inspection block (1) connected to the pressure strip (6); the first pressing groove (11) and the second pressing groove (12) are respectively located on the inner side and the outer side of the clamping bolt hole (13); the first pressing groove (11) and the second pressing groove (12) have different curvatures; the pressure strip (6) is arranged in the first pressing groove (11) or the second pressing groove (12); a flat washer (3) is provided outside the side of the inspection block (1) connected to the pressure strip (6); a clamping bolt (4) passes through the flat washer (3) and is threadedly connected to the clamping bolt hole (13) of the inspection block (1), so as to clamp the pressure strip (6) in the first pressing groove (11) or the second pressing groove (12) through the flat washer (3).

6. The tool for solid fuel engine bolt positioning detection according to claim 1, characterized in that: A dovetail groove (16) is provided on a side surface of the inspection block (1) opposite to the flexible connecting plate groove (14), and the length direction of the dovetail groove (16) is perpendicular to the axis of the clamping bolt hole (13) and the locking bolt hole (15); the bolt inspection fixture (7) comprises a measuring plate and a clamping piece, the side plate is fixedly connected to the clamping piece, the measuring hole is provided on the measuring plate, and the clamping piece cooperates with the dovetail groove (16).

7. A tool for solid fuel engine bolt positioning detection according to claim 6, characterized in that: The clamp is a U-shaped structure, and the open ends of the U-shaped structure are bent in directions away from each other so that the open ends of the U-shaped structure are matched with the dovetail groove (16).

8. A method for detecting the positioning of bolts of a solid engine, characterized in that: The detection is performed using a tool for solid engine bolt positioning detection according to any one of claims 1 to 7, comprising: Determine the bolt inspection fixture (7) corresponding to the measuring hole according to the specifications of the bolt to be inspected; Select a flexible layering strip (6), assemble the various structural parts, and obtain a flexible annular tooling with an opening; Starting from one end of the annular tool opening, the bolt inspection fixture (7) is sequentially sleeved on the solid transmitter bolts to detect the specifications and positions of all the bolts.

9. A method for detecting the positioning of bolts of a solid engine, characterized in that: The detection is performed using a tool for solid engine bolt positioning detection according to any one of claims 1 to 7, comprising: Determine the bolt inspection fixture (7) corresponding to the measuring hole according to the specifications of the bolt to be inspected; If a rigid layering strip (6) is selected, the various parts of the structure are assembled to obtain two semi-annular toolings; The two semi-annular toolings are sequentially mounted on the solid engine bolts to detect the specifications and positions of all the bolts.

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