Test device for single-side installation of threaded nail extraction

Abstract

The present invention discloses a single-side mounted threaded nail extraction test device, comprising a torque wrench (1), a tool (2), a three-jaw chuck A (3), a torque machine (4), and a three-jaw chuck B (5), characterized in that the torque wrench (1) is inserted into the tool (2), the tool (2) comprises a torque sleeve (21), a sandwich plate (22), a visual window (24), and a torque wrench block (25), the torque wrench block (25) is clamped into the torque sleeve (21), placed in the sandwich plate (22), and screwed into a bolt (23) for connection, the torque sleeve (21) is provided with a visual window (24), and the torque wrench (1) is inserted into the torque wrench block (25). The present invention has a good sight line, is convenient for observing the deformation process of deformed parts during detection, has accurate measurement data, and is easy to adjust the coaxiality of parts and equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of detection and testing, and in particular relates to a detection and testing device for single-side installation of threaded nails. Background Art

[0002] Single-sided installation threaded pull-out nails are a new type of fastener widely used in the aviation industry. To meet test requirements, ensure performance, and accurately control the breaking torque, we need to monitor and test performance indicators such as installation torque, torque change, and minimum breakaway torque during the test. The existing technology is to directly clamp the two ends of the part with a three-jaw chuck using a nut torque machine. Since the driving nut of the part is cylindrical, firstly, it is difficult to clamp it directly with the three-jaw chuck of the torque machine, and slipping will occur. Secondly, directly clamping the driving nut with the torque machine and the three-jaw chuck will affect the product's installation torque and installation effect, and will cause the measured installation torque and minimum breakaway torque to include the equipment clamping force, resulting in inaccurate measurement data. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above shortcomings and provide a single-sided installed threaded nail extraction detection test device with good sight line, convenient observation of the deformation process of deformed parts during detection, ensuring the authenticity of measurement data, and low difficulty in adjusting the coaxiality of parts and equipment.

[0004] The purpose of the present invention and the solution of its main technical problems are achieved by adopting the following technical solutions:

[0005] The present invention provides a single-sided installed threaded nail extraction detection test device, comprising a torque wrench, a tool, a three-jaw chuck A, a torque machine, and a three-jaw chuck B, wherein the small end of the torque wrench is inserted into the tool, the tool comprises a torque sleeve, a sandwich plate, a visual window, and a torque wrench block, the torque wrench block is clamped into the torque sleeve, placed in the sandwich plate, and screwed into the bolt connection, the torque sleeve is provided with a visual window, and the torque wrench is inserted into the torque wrench block.

[0006] The torque wrench is cylindrical, with one end being larger and the other end being smaller, and a through hole being provided in the center, the shape of the hole being adapted to the nail-pulling and screwing structure.

[0007] A through hole is provided in the center of the sandwich plate, and the hole at one end is trumpet-shaped.

[0008] The torque wrench is cylindrical, a clamping head is provided on the cylindrical surface, and a convex head is provided on the right end surface.

[0009] The torque wrench is clamped on a rotatable three-jaw chuck B, which is installed at one end of the torque machine. A three-jaw chuck A is installed at the other end of the torque machine, and a torque sleeve is clamped on the fixed three-jaw chuck A.

[0010] Compared with the prior art, the present invention has obvious beneficial effects; it can be seen from the above technical scheme that: the torque wrench is clamped into the torque sleeve, the sandwich panel is placed in the bolt connection, the single-side mounted threaded nail is placed in the sandwich panel, and the sandwich panel is fixed to the torque sleeve using the connecting bolt, the convex head provided on the right end face of the torque wrench is embedded in the single-side mounted threaded nail fixing slot, the torque wrench is placed on the torque sleeve so that they cooperate and fix each other, ensuring that the torque wrench does not rotate during the test, the torque wrench is inserted into the torque wrench block, the thin-diameter end of the torque wrench is inserted from the torque wrench block, and the single-side mounted threaded nail wrench is tightened together The structure cooperates, and after adjustment, it is guaranteed that it can be freely pulled out or inserted without getting stuck; a visual window is provided on the torque sleeve, through which the forming process of the nail extraction is observed, thereby achieving good sight lines, and conveniently observing the deformation process of the deformed parts during detection, and after the single-sided mounted threaded nail is placed in the tooling, the tooling and the torque wrench are adjusted respectively, and after the diameters of the tooling and the torque wrench are enlarged, it is less difficult to adjust the tooling, the torque wrench and the equipment to be coaxial, thereby achieving low difficulty in adjusting the coaxiality of the parts and the equipment, and ensuring the authenticity of the measurement data. In short, the present invention has good sight lines, and conveniently observes the deformation process of the deformed parts during detection, thereby ensuring the authenticity of the measurement data, and low difficulty in adjusting the coaxiality of the parts and the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 It is a top view of the torque wrench and tooling of the present invention;

[0013] Figure 3 yes Figure 2 Cross-sectional view of AA;

[0014] Figure 4 It is a top view of the tooling of the present invention;

[0015] Figure 5 yes Figure 4 Cross-sectional view of BB;

[0016] Figure 6 It is a structural schematic diagram of the torque wrench of the present invention;

[0017] Figure 7 It is a structural schematic diagram of the torque wrench of the present invention;

[0018] Figure 8 This is the usage state of the present invention Figure 1 ;

[0019] Figure 9 This is the usage state of the present invention Figure 2 ;

[0020] Figure 10 This is a schematic structural diagram of the nail removal method of the present invention;

[0021] Figure 11 It is the right side view of the nail-pulling device of the present invention.

[0022] Marking in the figure

[0023] 1. Torque wrench, 2. Tooling, 3. Three-jaw chuck A, 4. Torque machine, 5. Three-jaw chuck B, 6. Nail puller, 21. Torque sleeve, 22. Sandwich panel, 23. Bolt, 24. Viewing window, 25. Torque wrench block, 61. Drive nut, 62. Deformed part, 63. Support part, 64. Wrench structure, 65. Core rod, 66. Fixing slot. DETAILED DESCRIPTION

[0024] The following is a detailed description of the specific implementation, structure, features and functions of the present invention in conjunction with the accompanying drawings and preferred embodiments.

[0025] The present invention provides a single-sided installed threaded nail extraction detection test device, comprising a torque wrench 1, a tool 2, a three-jaw chuck A3, a torque machine 4, and a three-jaw chuck B5, wherein the torque wrench 1 is inserted into the tool 2, the tool 2 comprises a torque sleeve 21, a sandwich plate 22, a visual window 24, and a torque wrench block 25, the torque wrench block 25 is inserted into the torque sleeve 21, placed into the sandwich plate 22, and screwed into the bolt 23 for connection, the torque sleeve 21 is provided with a visual window 24, and the small end of the torque wrench 1 is inserted into the torque wrench block 25.

[0026] The torque wrench 1 is cylindrical, with one end larger than the other end, and a through hole is provided in the center, the shape of which is adapted to the nail pulling and tightening structure.

[0027] The sandwich plate 22 is provided with a through hole in the center, and the hole at one end is trumpet-shaped.

[0028] The torque wrench 25 is cylindrical, with a clamping head provided on the cylindrical surface and a convex head provided on the right end surface.

[0029] The torque wrench 1 is clamped on a rotatable three-jaw chuck B5, which is mounted on one end of a torque machine 4. A three-jaw chuck A3 is mounted on the other end of the torque machine 4, and a torque sleeve 21 is clamped on the fixed three-jaw chuck A3.

[0030] During use, installation and torque curve mapping are performed; the torque wrench block 25 is placed on the torque sleeve 1 so that they cooperate and are fixed with each other to ensure that the torque wrench block 25 does not rotate during the test, the single-sided mounted threaded nail 6 is placed in the sandwich panel 22 that meets the installation requirements, the sandwich panel 22 is fixed to the torque sleeve 21 with the connecting bolt 23, and the tooth part of the torque wrench block 25 is ensured to be embedded in the fixed card slot 66 part of the single-sided mounted threaded nail 6 without shaking, the thin-diameter end of the torque wrench 1 is inserted from the bottom of the torque wrench block 25, and cooperates with the single-sided mounted threaded nail 6 wrench structure 64 to ensure that it can be freely pulled out or inserted without getting stuck; Connect the large diameter end of the torque wrench 1 to the three-jaw chuck A3 (rotating) end of the torque machine 4, and the torque sleeve 21 to the three-jaw chuck B5 (fixed) end of the torque machine 4. After installation, push out the torque wrench 1 and reinstall it to its original position. Ensure that the torque wrench 1, tooling 2, nail puller 6, and torque machine 4 are coaxial and there is no jamming or other problems. Reset the equipment and make the main shaft of the equipment rotate forward. The main shaft drives the three-jaw chuck A3 to rotate. The three-jaw chuck A3 drives the torque wrench 1 to rotate. The torque wrench 1 drives the wrench structure 64 to rotate. Observe the forming process of the nail puller 6 through the visual window 24. After meeting the installation requirements, stop rotating the main shaft, record the installation torque, and save the torque curve.

[0031] Minimum loosening torque detection; Place the torque wrench block 25 into the torque sleeve 1, so that they cooperate and fix each other, ensure that the torque wrench block 25 does not rotate during the test, put the single-sided mounted threaded nail 6 into the sandwich panel 22 that meets the installation requirements, and use the connecting bolts 23 to fix the sandwich panel 22 to the torque sleeve 21, and ensure that the teeth of the torque wrench block 25 are embedded in the fixed card slot 66 of the single-sided mounted threaded nail 6 without shaking, insert the small diameter end of the torque wrench 1 from the bottom of the torque wrench block 25, and cooperate with the single-sided mounted threaded nail 6 wrench structure 64 to ensure that it can be freely pulled out or inserted without getting stuck; Put the large end of the torque wrench 1 The radial end is connected to the three-jaw chuck A3 (rotating) end of the torque machine 4, and the torque sleeve 21 is connected to the three-jaw chuck B5 (fixed) end of the torque machine 4. After installation, push out the torque wrench 1 and install it back to its original position again to ensure that the torque wrench 1, tooling 2, nail puller 6, and torque machine 4 are coaxial and there is no jamming or other problems. The equipment is reset and the main shaft of the equipment is reversed. The main shaft drives the three-jaw chuck A3 to rotate, and the three-jaw chuck A3 drives the torque wrench 1 to rotate. The torque wrench 1 drives the wrench structure 64 to rotate. The reversal angle and number of turns are specified by the nail puller 6 standard. After meeting the detection requirements, stop rotating the main shaft, collect data, and record the value that meets the standard as the minimum loosening torque value.

[0032] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A testing device for detecting and testing a single-side mounted threaded nail removal device, comprising a torque wrench (1), a tool (2), a three-jaw chuck A (3), a torque machine (4), and a three-jaw chuck B (5), characterized in that; The torque wrench (1) is inserted into the tooling (2), which includes a torque sleeve (21), a sandwich plate (22), a visual window (24), and a torque wrench block (25); the torque wrench block (25) is inserted into the torque sleeve (21), and then the sandwich plate (22) is placed in the torque sleeve (21) and connected by screwing in a bolt (23); the torque sleeve (21) is provided with a visual window (24), and the small end of the torque wrench (1) is inserted into the torque wrench block (25); the sandwich plate (22) is provided with a through hole in the center, and one end hole is trumpet-shaped; the torque wrench The force wrench (25) is cylindrical, with a chuck provided on the cylindrical surface, and a convex head is provided on the right end surface of the torque wrench (25); the torque wrench (1) is cylindrical, with one end larger than the other end, and a through hole provided in the center, the shape of the hole being adapted to the wrench structure (64) of the required measurement pin (6); the torque wrench (1) is clamped on a rotatable three-jaw chuck B (5), the three-jaw chuck B (5) is mounted on one end of the torque machine (4), the other end of the torque machine (4) is mounted with a three-jaw chuck A (3), and the torque sleeve (21) is clamped on the fixed three-jaw chuck A (3).

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