Blind bolt installation quality verification tool

Abstract

The utility model discloses a blind bolt installation quality verification tool, and relates to the field of blind bolt installation quality detection, and the specific scheme is that the blind bolt installation quality verification tool comprises a torque wrench, an adapter sleeve and a clamping head; a first connecting hole and a second connecting hole are oppositely formed in the two ends of the adapter sleeve, the first connecting hole is used for being matched and clamped with a connector of a torque wrench, and the second connecting hole is used for being matched and clamped with the head of the raised head bolt to be detected; the clamping head comprises a first end and a second end, the first end of the clamping head is used for being matched and clamped with the second connecting hole of the adapter sleeve, and the second end of the clamping head is used for being matched and clamped with the head of the countersunk bolt to be detected. According to the utility model, the installation torque of the raised head bolt to be detected is accurately verified through the cooperation of the torque wrench and the adapter sleeve, and the installation torque of the countersunk head bolt to be detected is verified through the cooperation of the torque wrench, the adapter sleeve and the clamping head, so that the installation quality of the blind bolt is accurately verified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of blind bolt installation quality detection, especially relates to a blind bolt installation quality check tool. BACKGROUND

[0002] The significance of blind bolt installation quality check lies in: ensuring that the blind bolt can work safely and reliably in the use process, avoiding safety accidents and equipment failure caused by installation quality problems.

[0003] At present, in the field of civil aviation maintenance, there is a lack of tools for checking the quality of blind bolt installation, and maintenance personnel mostly use visual inspection method to judge whether the installation of blind bolt is accurate, according to maintenance experience, while the existing inspection method cannot accurately judge the installation quality of blind bolt. UTILITY MODEL CONTENT

[0004] The utility model provides a blind bolt installation quality check tool, which can accurately verify the installation quality of blind bolt.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a blind bolt installation quality check tool, which comprises a torque wrench, an adapter sleeve and a chuck.

[0007] First and second connecting holes are formed at opposite ends of the adapter sleeve, the first connecting hole is used for matched clamping with the connecting head of the torque wrench, and the second connecting hole is used for matched clamping with the head of the blind bolt to be measured.

[0008] The chuck comprises a first end and a second end, the first end of the chuck is used for matched clamping with the second connecting hole of the adapter sleeve, and the second end of the chuck is used for matched clamping with the head of the blind bolt to be measured.

[0009] In a possible implementation manner, the adapter sleeve is multiple;

[0010] The first connecting holes of the multiple adapter sleeves are same and are all used for matched clamping with the connecting head of the torque wrench;

[0011] The second connecting holes of the multiple adapter sleeves are different in shape and / or size.

[0012] In a possible implementation manner, the chuck is multiple;

[0013] The first ends of the multiple chucks are matched with the shape of the second connecting hole of one adapter sleeve and are used for clamping in the second connecting hole of the adapter sleeve;

[0014] The second end of the plurality of clamping heads is different in shape and / or size.

[0015] In a possible implementation, the torque wrench is a dial torque wrench.

[0016] In a possible implementation, the blind bolt installation quality checking tool further comprises a measuring scale.

[0017] An end of the measuring scale is provided with a square slot, a top wall of the square slot is a test end point, a connecting column is arranged in the square slot in a depth direction of the square slot, and an end of the connecting column away from a bottom of the square slot is an intermediate reference point.

[0018] The measuring scale measures a distance between a head hole of the to-be-tested head bolt or the to-be-tested countersunk bolt and the installation surface according to a height difference between the intermediate reference point and the test end point.

[0019] In a possible implementation, both ends of the measuring scale are provided with the square slot and the connecting column.

[0020] In both ends of the measuring scale, the height difference between the intermediate reference point and the test end point is different.

[0021] In a possible implementation, the measuring scale is multiple.

[0022] In the multiple measuring scales, the height difference between the intermediate reference point and the test end point is different.

[0023] In a possible implementation, a side of the square slot of the measuring scale is further provided with measuring size information, and the measuring size information is a numerical value of the height difference between the intermediate reference point and the test end point.

[0024] In a possible implementation, the measuring scale is further provided with indication information, and the indication information is basic information of a to-be-tested head bolt or a to-be-tested countersunk bolt applicable to the measuring scale.

[0025] The blind bolt installation quality verification tool provided by the embodiment of the utility model realizes the accurate verification of the installation torque of the blind bolt when the head of the blind bolt to be measured is clamped in the second connecting hole of the adapter sleeve, and the installation torque of the blind bolt to be measured is tested whether the torque wrench is in the specified installation torque of the blind bolt to be measured, thereby realizing the accurate verification of the installation quality of the blind bolt. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The connecting structure schematic view of the torque wrench, the adapter sleeve and the blind bolt to be measured of the blind bolt installation quality verification tool provided by the embodiment of the utility model is provided.

[0027] Figure 2 The connecting structure schematic view of the torque wrench, the adapter sleeve, the clamp and the blind bolt to be measured of the blind bolt installation quality verification tool provided by the embodiment of the utility model is provided.

[0028] Figure 3 The structure schematic view of the torque wrench of the blind bolt installation quality verification tool provided by the embodiment of the utility model is provided.

[0029] Figure 4 The structure schematic view of the torque wrench of the blind bolt installation quality verification tool provided by the embodiment of the utility model is provided.

[0030] Figure 5 The structure schematic view of the clamp of the blind bolt installation quality verification tool provided by the embodiment of the utility model is provided. Figure 5 (a) is the front view of the clamp, Figure 5 (b) is the left view of the clamp. Figure 5 (c) is the top view of the clamp.

[0031] Figure 6 The structure schematic view of the measuring scale of the blind bolt installation quality verification tool provided by the embodiment of the utility model is provided.

[0032] The figure mark and the brief description of the drawing are as follows:

[0033] 1, torque wrench; 11, handle; 12, housing; 13, connector; 14, dial; 15, pointer; 2, adapter sleeve; 21, first connecting hole; 22, second connecting hole; 3, chuck; 31, first end; 32, second end; 4, measuring scale; 41, test end point; 42, intermediate reference point; 43, measurement size information; 44, indication information; 5, to-be-measured raised head bolt; 6, to-be-measured countersunk head bolt. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] Hereinafter, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise stated, the meaning of "multiple" is two or more. In addition, the use of "based on" or "according to" means openness and inclusiveness, because the process, step, calculation or other action "based on" or "according to" one or more stated conditions or values can be based on additional conditions or values beyond the stated values in practice.

[0036] A blind bolt is a bolt with a limited thread hole depth, and the thread hole does not penetrate the nut body, so the other side cannot be seen from one side of the nut.

[0037] A blind bolt is composed of three parts, including a bolt with a flat head, a nut with a hexagonal head or a countersunk head, and a bushing. Among them, the nut and the bolt are made of high-strength steel or stainless steel, and the bushing is made of stainless steel.

[0038] Blind bolts are usually used in locations that are limited in position and can only be accessed from one side; locations with limited space that do not allow the use of standard rivets or fasteners; locations with specific repair requirements in technical repair plans. When installing a blind bolt, a blind bolt installation tool is needed to hold and rotate the nut until the bolt handle breaks at a special groove.

[0039] After the installation of the blind bolt is completed, not only the correct installation of the blind bolt needs to be checked, but also the torque value of the blind bolt needs to be ensured. Among them, the correct installation of the blind bolt includes that the bolt handle breaks at the correct position, the deformation of the repair material should not exceed the given limit value, and no cracks are allowed to appear in any part of the blind bolt or adjacent structures.

[0040] In the prior art, maintenance personnel mostly adopt visual inspection, and judge whether the installation of blind bolts is accurate according to maintenance experience, and the existing inspection method cannot accurately judge the installation quality of the blind bolts.

[0041] In order to accurately verify the installation quality of the blind bolts, the utility model discloses an embodiment of a blind bolt installation quality verification tool.

[0042] As shown in Figure 1 , Figure 2 A blind bolt installation quality verification tool comprises a torque wrench 1, an adapter sleeve 2 and a chuck 3.

[0043] First connecting holes 21 and second connecting holes 22 are oppositely arranged at two ends of the adapter sleeve 2, the first connecting holes 21 are used for cooperating with the connecting heads 13 of the torque wrench 1 for clamping, and the second connecting holes 22 are used for cooperating with the heads of the to-be-tested head bolts 5 for clamping.

[0044] The chuck 3 comprises first ends 31 and second ends 32, the first ends 31 of the chuck 3 are used for cooperating with the second connecting holes 22 of the adapter sleeve 2 for clamping, and the second ends 32 of the chuck 3 are used for cooperating with the heads of the to-be-tested countersunk bolts 6 for clamping.

[0045] When the to-be-tested head bolts 5 need to be verified, the adapter sleeve 2 is installed on the connecting heads 13 of the torque wrench 1, the heads of the to-be-tested head bolts 5 are clamped in the second connecting holes 22 of the adapter sleeve 2, when the torque wrench 1 works, whether the torque wrench 1 is in the specified installation torque of the to-be-tested head bolts 5 is tested, and the installation torque of the to-be-tested head bolts 5 is accurately verified.

[0046] When the to-be-tested countersunk bolts 6 need to be verified, the adapter sleeve 2 is first installed on the connecting heads 13 of the torque wrench 1, then the chuck 3 is further installed at the second connecting holes 22 of the adapter sleeve 2, the second ends 32 of the chuck 3 are clamped on the heads of the to-be-tested countersunk bolts 6, when the torque wrench 1 works, whether the torque wrench 1 is in the specified installation torque of the to-be-tested countersunk bolts 6 is tested, and the installation torque of the to-be-tested countersunk bolts 6 is accurately verified, so that the installation quality of the blind bolts is accurately verified.

[0047] As shown in Figure 3 and Figure 4 Further, the torque wrench 1 is a dial torque wrench.

[0048] Specifically, the torque wrench 1 comprises a handle 11, a shell 12, connecting heads 13, a dial 14 and a pointer 15.

[0049] The handle 11, the shell 12 and the connecting head 13 are sequentially connected, and the shell 12 is used for fixing the dial 14. The pointer 15 is two, which is arranged on the dial 14 and is used for displaying the torque value.

[0050] When the dial type torque wrench is used, the user holds the handle 11, the adapter sleeve 2 is clamped on the connecting head 13 through the first connecting hole 21, and the dial 4 is adjusted to make the pointer 15 zero.

[0051] When it is needed to check the to-be-tested head bolt 5, the second connecting hole 22 of the adapter sleeve 2 is clamped with the head of the to-be-tested head bolt 5, the handle 11 is rotated, and it is observed whether the pointer 15 on the dial 4 reaches the scale value corresponding to the specified installation torque of the to-be-tested head bolt 5. If yes, it is indicated that the installation torque value of the to-be-tested head bolt 5 meets the installation requirement.

[0052] When it is needed to check the to-be-tested countersunk bolt 6, the clamp head 3 is installed at the second connecting hole 22 of the adapter sleeve 2, the second end 32 of the clamp head 3 is clamped on the head of the to-be-tested countersunk bolt 6, the handle 11 is rotated, and it is observed whether the pointer 15 on the dial 4 reaches the scale value corresponding to the specified installation torque of the to-be-tested countersunk bolt 6. If yes, it is indicated that the installation torque value of the to-be-tested countersunk bolt 6 meets the installation requirement.

[0053] As shown in Figure 1 Further, the adapter sleeve 2 is multiple.

[0054] The first connecting holes 21 of the multiple adapter sleeves 2 are the same, and are all used for clamping cooperation with the connecting head 13 of the torque wrench 1.

[0055] The second connecting holes 22 of the multiple adapter sleeves 2 are different in shape and / or size.

[0056] In the embodiment, the connecting head 13 of the torque wrench 1 is a rectangular column structure, the adapter sleeve 2 is a sleeve for screwing a bolt, one end of the adapter sleeve 2 is a square hole, and the other end is a hexagonal hole. That is, the first connecting hole 21 is a square hole, the second connecting hole 22 is a hexagonal hole, the sizes of the first connecting holes 21 of the multiple adapter sleeves 2 are the same, and all are matched with the connecting head 13, the sizes of the second connecting holes 22 of the multiple adapter sleeves 2 are different, different models of the adapter sleeves 2 are arranged according to the sizes of the head of the head bolt, and in actual application, the adapter sleeve 2 with a proper size is selected according to the size of the to-be-tested head bolt 5.

[0057] As shown in Figure 5 Further, the clamp head 3 is multiple.

[0058] The first end 31 of the multiple clamp heads 3 is matched with the shape of the second connecting hole 22 of one of the adapter sleeves 2, and is used for clamping in the second connecting hole 22 of the adapter sleeve 2.

[0059] The second end 32 of the plurality of clamping heads 3 is different in shape and / or size.

[0060] In the embodiment, the first end 31 of the clamping head 3 is a hexagonal structure, which can be clamped into the second connecting hole 22 of the adapter sleeve 2, and the second end 32 of the clamping head 3 matches the shape of the clamping groove of the head of the blind bolt 6 to be tested. When the clamping groove of the head of the blind bolt 6 to be tested is a cross groove, the clamping head 3 is clamped in the cross groove.

[0061] As shown in Figure 6 Further, the blind bolt installation quality checking tool further comprises a measuring ruler 4.

[0062] The end of the measuring ruler 4 is provided with a square groove, the top wall of the square groove is a test end point 41, and a connecting column is arranged in the square groove along the depth direction of the square groove, and the end of the connecting column away from the groove bottom is an intermediate reference point 42.

[0063] The measuring ruler 4 is a rectangular card, and the square groove is arranged on one side of the short side of the rectangular card.

[0064] The measuring ruler 4 measures the distance from the head of the blind bolt 5 to be tested or the head of the blind bolt 6 to be tested to the installation surface according to the height difference between the intermediate reference point 42 and the test end point 41.

[0065] Specifically, when the measuring ruler 4 is applied, the end of the connecting column is abutted against the bottom of the clamping groove of the head of the blind bolt 5 to be tested or the head of the blind bolt 6 to be tested, that is, the intermediate reference point 42 is coincided with the clamping groove of the head of the blind bolt 5 to be tested or the head of the blind bolt 6 to be tested, and whether the test end point 41 is flush with the installation surface of the blind bolt 5 to be tested or the blind bolt 6 to be tested is observed.

[0066] Further, the two ends of the measuring ruler 4 are both provided with square grooves and connecting columns.

[0067] The height difference between the intermediate reference point 42 and the test end point 41 is different at the two ends of the measuring ruler 4.

[0068] That is, the two ends of one measuring ruler 4 can be used to test two blind bolts with different specified installation values.

[0069] Further, the measuring ruler 4 is multiple.

[0070] The height difference between the intermediate reference point 42 and the test end point 41 is different on the multiple measuring rulers 4.

[0071] In the embodiment, the measuring ruler 4 is six, which can test twelve blind bolts with different specified installation values, and the six measuring rulers 4 are the same in appearance except for different sizes. The different sizes of the measuring rulers 4 refer to the different height differences between the intermediate reference point 42 and the test end point 41.

[0072] The measuring ruler 4 is milled by a milling machine. Each measuring ruler 4 has two intermediate reference points 42 and four test end points 41 .

[0073] Furthermore, measurement dimension information 43 is provided on one side of the square groove of the measuring ruler 4 , and the measurement dimension information 43 is the value of the height difference between the middle reference point 42 and the test end point 41 .

[0074] In this embodiment, the unit of the height difference between the intermediate reference point 42 and the test endpoint 41 is millimeter.

[0075] Furthermore, the measuring ruler 4 is provided with indication information 44 , which is basic information of the raised head bolt 5 or the countersunk head bolt 6 to be measured that the measuring ruler 4 is applicable to.

[0076] The basic information includes the blind bolt diameter and the head shape of the blind bolt.

[0077] exist Figure 6 In the code, the numbers -5 and -6 are used to indicate the blind bolt diameter size code, and the countersunk or convex head below the number indicates the head shape of the blind bolt.

[0078] In actual application, it is necessary to first observe the appearance of the blind bolt to be checked, and then determine the diameter size code of the blind bolt to be checked through drawings or manuals, so as to select an appropriate measuring ruler 4 according to the head shape and diameter size code of the blind bolt to check the correctness of the installation position of the blind bolt.

[0079] The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this. Any changes or replacements within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A blind bolt installation quality verification tool, characterized by, The torque wrench (1), the adapter sleeve (2) and the clamp head (3) are included. The first connecting hole (21) is used for matching and clamping with the connecting head (13) of the torque wrench (1), and the second connecting hole (22) is used for matching and clamping with the head of the to-be-measured protruding head bolt (5). The clamp head (3) includes a first end (31) and a second end (32), the first end (31) of the clamp head (3) is used for matching and clamping with the second connecting hole (22) of the adapter sleeve (2), and the second end (32) of the clamp head (3) is used for matching and clamping with the head of the to-be-measured countersunk bolt (6).

2. The blind bolt installation quality verification tool of claim 1, wherein, The adapter sleeve (2) is multiple. The first connecting holes (21) of the multiple adapter sleeves (2) are the same and are used for matching and clamping with the connecting head (13) of the torque wrench (1). The shapes and / or sizes of the second connecting holes (22) of the multiple adapter sleeves (2) are different.

3. The blind bolt installation quality verification tool of claim 2, wherein, The clamp head (3) is multiple. The first ends (31) of the multiple clamp heads (3) are matched with the shape of the second connecting hole (22) of one of the adapter sleeves (2) and are used for clamping in the second connecting hole (22) of the adapter sleeve (2). The shapes and / or sizes of the second ends (32) of the multiple clamp heads (3) are different.

4. The blind bolt installation quality verification tool of claim 1, wherein, The torque wrench (1) is a dial torque wrench.

5. The blind bolt installation quality verification tool of claim 1, wherein, The blind bolt installation quality checking tool further includes a measuring scale (4). The end of the measuring scale (4) is provided with a square groove, the top wall of the square groove is a test end point (41), and a connecting column is arranged in the square groove in the depth direction of the square groove. The measuring scale (4) measures the distance between the head of the to-be-measured protruding head bolt (5) and the installation surface of the to-be-measured protruding head bolt (5) or the distance between the countersunk hole of the head of the to-be-measured countersunk bolt (6) and the installation surface of the to-be-measured countersunk bolt (6) according to the height difference between the intermediate reference point (42) and the test end point (41).

6. The blind bolt installation quality verification tool of claim 5, wherein, Both ends of the measuring scale (4) are provided with the square groove and the connecting column. The height difference between the intermediate reference point (42) and the test end point (41) at both ends of the measuring scale (4) is different.

7. The blind bolt installation quality verification tool of claim 5, wherein, The measuring scale (4) is multiple. The height difference between the intermediate reference point (42) and the test end point (41) on the multiple measuring scales (4) is different.

8. The blind bolt installation quality verification tool of claim 5, wherein, The measuring scale (4) is further provided with measuring size information (43) on one side of the square groove, and the measuring size information (43) is the numerical value of the height difference between the intermediate reference point (42) and the test end point (41).

9. The blind bolt installation quality verification tool of claim 5, wherein, The measuring scale (4) is further provided with indication information (44), and the indication information (44) is the basic information of the to-be-measured protruding head bolt (5) or the to-be-measured countersunk bolt (6) applicable to the measuring scale (4).

Images