Adjustable device and method for aligning hole sites of supporting plate nut and gasket

Abstract

The invention belongs to the technical field of aviation assembly, and relates to an adjustable device for aligning hole sites of a supporting plate nut and a gasket. The device is composed of a working head (1), a working head (2), a telescopic rod (3), a telescopic rod (4), a fixing screw (5), a fixing screw (6), a movable supporting column (7), a fixing supporting column (8), an I-shaped support (9), a Chinese character'zhong '-shaped support (10), an adjusting locking screw (11), a handle (12) and a ruler (13). And the working head (1) and the working head (2) are L-shaped or Z-shaped. The device is simple in structure, easy to implement and operate and low in cost. The positioning position is accurate, repeated positioning is not needed, and the hole position alignment efficiency is high. The distance between the working heads can be adjusted according to the distance between rivet holes, and the working angle, the length of the telescopic rod and the diameter of the working heads can be adjusted according to actual conditions. The device can work continuously, is suitable for the process of installing a large number of supporting plate nuts, reduces the labor cost, saves a large amount of time, and greatly improves the working efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation assembly, and relates to a tool for quickly installing a blind nut for aviation, specifically to a device for quickly aligning the holes of the blind nut and the blind nut gasket. Background Art

[0002] The blind nut is a standard part widely used in the connection of aircraft structures, which facilitates the repeated disassembly and installation of connecting parts. There are a total of 3 holes on the plate of the blind nut, including 1 large hole and 2 small holes. The large hole is used for subsequent installation of bolts, and the 2 small holes are connected to the airframe structure by riveting to fix the blind nut on the structure. The blind nut gasket is usually installed between the blind nut and the airframe structure, and the holes of the gasket must be aligned with the holes of the blind nut.

[0003] When installing blind nuts in batches, usually a drill jig is used to make 3 holes on the structure that match the blind nuts. Next, a process bolt is needed to tighten the blind nut, and the positions of the 2 rivet holes on the structure, the blind nut, and the 2 rivet holes on the blind nut gasket need to be aligned, and then riveting is carried out. Due to the large number of connecting parts layers, the positions of the holes require precise alignment, and the tail of the blind nut cannot be tightened with an ordinary wrench. Therefore, it is very difficult to align the hole positions when tightening the bolt. Installing a large number of blind nuts of different sizes and specifications results in a large amount of time and effort required for the installation and positioning of blind nuts, seriously affecting production efficiency and with a huge workload.

[0004] The prior art uses manual alignment, which requires repeated adjustment, is time-consuming and laborious, and the hole positions are prone to deviation when tightening. When using a block-type fixed blind nut tool to align the hole positions, the line of sight is blocked, it is not easy to align the hole positions, the adjustability is poor, and the openness of the operating environment is limited. Moreover, tools need to be customized separately for each specification and shape of the blind nut, and the versatility is poor. Summary of the Invention

[0005] The present invention provides an adjustable device and method for aligning the hole positions of blind nuts and gaskets. Considering the differences in the specifications, shapes, sizes, installation directions, and structural openness of blind nuts, an innovative design of an adjustable device for aligning the hole positions of blind nuts and gaskets is proposed, which can meet the requirements of various different situations. Solve the problem that the hole positions cannot be accurately aligned when tightening the blind nut and the gasket.

[0006] According to one aspect of the present application, an adjustable device for aligning the hole positions of blind nuts and gaskets is provided. The device is composed of a working head 1, a working head 2, a telescopic rod 3, a telescopic rod 4, a fixing screw 5, a fixing screw 6, a movable support column 7, a fixed support column 8, an I-shaped bracket 9, a middle-character groove bracket 10, an adjusting locking screw 11, a handle 12, and a scale 13;

[0007] The working head 1 and the working head 2 are L-shaped or Z-shaped.

[0008] The working head 1 is composed of a guiding chamfer 1-1, a hole diameter head 1-2, and a cuboid base 1-3;

[0009] The working head 2 is composed of a guiding chamfer 2-1, a hole diameter head 2-2, and a cuboid base 2-3.

[0010] The movable support column 7 is connected to the cuboid base 1-3 through a fixing screw 5;

[0011] The fixing screw 6 connects the fixed support column 8 to the cuboid base 2-3;

[0012] A cuboid groove 7-1 is provided at the top of the movable support column 7, and the groove of the cuboid groove 7-1 can match the cuboid base 1-3;

[0013] A cuboid groove 8-1 is provided at the top of the fixed support column 8, and the groove of the cuboid groove 8-1 can match the cuboid base 2-3.

[0014] The fixed support column 8, the I-shaped bracket 9, and the middle-character groove bracket 10 are connected in an F shape.

[0015] The middle part of the movable support column 7 is provided with an I-shaped through groove 7-2 that matches the I-shaped bracket 9, and the tail end is provided with a T-shaped boss 7-3 that matches the middle-character groove bracket 10 to achieve free movement along the I-shaped bracket.

[0016] Limit blocks 9-1 are provided on the I-shaped bracket 9, and limit blocks 10-1 are provided on the middle-character groove bracket 10 to limit the sliding range of the movable support column 7 and prevent the movable support column 7 from sliding out.

[0017] A notch is provided at the bottom of the middle-character groove bracket 10, and a threaded hole is provided at the bottom end of the T-shaped boss 7-3. The adjusting and locking screw 11 passes through the notch at the bottom of the middle-character groove bracket 10 and is connected to the threaded hole at the end of the T-shaped boss 7-3 to adjust and lock the movable support column 7.

[0018] According to another aspect of the present application, a method for using the above-mentioned device for adjusting the alignment of the pallet nut and the gasket hole position is provided. Adjust the distance between the working head 1 and the working head 2 according to the distance between the two rivet holes of the installed pallet nut. Place the pallet nut and the pallet nut gasket on the fabricated structural member. Pass the bolt through the bolt hole of the pallet nut and fasten it with 2 turns. Insert the hole diameter head 1-2 on the working head 1 and the hole diameter head 2-2 on the working head 2 of the device into the two rivet holes on the structure, the pallet nut gasket, and the pallet nut to make the two holes on the multi-layer parts concentric. Tighten the pre-tightening bolt on the pallet nut, remove the device, and perform the riveting work on the pallet nut.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The tool used in the present invention has a simple structure, is easy to implement, easy to operate, and has a low cost.

[0021] 2. The method of the present invention has an accurate positioning position, does not require repeated positioning, and has a high efficiency in aligning the hole positions.

[0022] 3. When the tool used in the present invention is working, the distance between the working heads can be adjusted according to the distance between the rivet holes, and the working angle, the length of the telescopic rod, and the diameter of the working head can be adjusted according to the actual situation, which is applicable to the installation of pallet nuts with various different specifications, shapes, and sizes, greatly expanding the applicable range of the device.

[0023] 4. The tool used in the present invention can work continuously, is applicable to the process of installing a large number of pallet nuts, reduces the labor cost, saves a lot of time, and greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the device described in Device Example 1;

[0025] Figure 2 Bottom view of the device described in Device Example 1;

[0026] Figure 3 Front view of the device described in Device Example 1;

[0027] Figure 4 Left view of the device described in Device Example 1;

[0028] Figure 5 Schematic diagram of the L-shaped rod working head 1, and the L-shaped rod working head 2 is the same as it;

[0029] Figure 6 Schematic diagram of the movable support column 7;

[0030] Figure 7 Front view of the connection position relationship between the F-shaped support combination composed of the fixed support column 8, the I-shaped support 9, and the middle-character groove support 10 and the handle 12;

[0031] Figure 8 Side view of the connection position relationship between the F-shaped support combination composed of the fixed support column 8, the I-shaped support 9, and the middle-character groove support 10 and the handle 12

[0032] Figure 9 Schematic diagram of the Z-shaped rod working head 14, and the Z-shaped rod working head 15 is the same as it;

[0033] Figure 10 Schematic diagram of the device described in Device Example 2.

[0034] Among them, the working head of the 1L-shaped rod, 1-1 guiding chamfer, 1-2 hole diameter head, 1-3 cuboid base, the working head of the 2L-shaped rod, 3 telescopic rods, 4 telescopic rods, 5 fixing screws, 6 fixing screws, 7 movable struts, 7-1 cuboid groove, 7-2 I-shaped through groove, 7-3 T-shaped boss, 8 fixed struts, 8-1 cuboid groove, 9 I-shaped bracket, 9-1 limiting block, 10 middle-character groove bracket, 10-1 limiting block, 11 adjusting locking screw, 12 handle, 13 scale, 14 Z-shaped rod working head, 14-1 guiding chamfer, 14-2 hole diameter head, 14-3 cuboid base, 15 Z-shaped rod working head; Detailed implementation mode

[0035] To make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0036] Device Example 1

[0037] The said device is composed of working head 1, working head 2, telescopic rod 3, telescopic rod 4, fixing screw 5, fixing screw 6, movable strut 7, fixed strut 8, I-shaped bracket 9, middle-character groove bracket 10, adjusting locking screw 11, handle 12 and scale 13;

[0038] The working heads 1 and 2 are L-shaped.

[0039] The working head 1 is composed of a guiding chamfer 1-1, a hole diameter head 1-2 and a cuboid base 1-3;

[0040] The working head 2 is composed of a guiding chamfer 2-1, a hole diameter head 2-2 and a cuboid base 2-3.

[0041] Connect the movable strut 7 and the cuboid base 1-3 through the fixing screw 5;

[0042] Connect the fixed strut 8 and the cuboid base 2-3 with the fixing screw 6;

[0043] The top of the movable strut 7 is provided with a cuboid groove 7-1, and the groove of the cuboid groove 7-1 can match the cuboid base 1-3;

[0044] The top of the fixed strut 8 is provided with a cuboid groove 8-1, and the groove of the cuboid groove 8-1 can match the cuboid base 2-3.

[0045] The fixed strut 8, the I-shaped bracket 9 and the middle-character groove bracket 10 are connected in an F shape.

[0046] The middle part of the movable strut 7 is provided with an I-shaped through groove 7-2 matching the I-shaped bracket 9, and the tail end is provided with a T-shaped boss 7-3 matching the middle-character groove bracket 10 to realize free movement along the I-shaped bracket.

[0047] A limiting block 9-1 is provided on the I-shaped bracket 9, and a limiting block 10-1 is provided on the middle-character groove bracket 10 to limit the sliding range of the movable support column 7 and prevent the movable support column 7 from sliding out.

[0048] A notch is provided at the bottom of the middle-character groove bracket 10, and a threaded hole is provided at the bottom end of the T-shaped boss 7-3. The adjusting locking screw 11 passes through the notch at the bottom of the middle-character groove bracket 10 and is connected to the threaded hole at the end of the T-shaped boss 7-3 to adjust and lock the movable support column 7.

[0049] As Figures 1 - 8 shown, the working head 1 and the working head 2 are adjustable parts of the device and can be adjusted to different diameters and lengths according to actual needs. The hole diameter heads 1-2 on the two working heads are simultaneously inserted into the rivet holes of the backing nut to ensure that the backing nut, the gasket, and the two holes on the structure are concentric and aligned at the same time. The end of the working head 1 is provided with a guiding chamfer 1-1 to facilitate the quick insertion of the L-shaped rod working head into the rivet hole. The telescopic rods 3 and 4 are telescopic pull rods, one end is respectively connected to the L-shaped rod working head 1 and the L-shaped rod working head 2, and the other end is fixed on the rectangular base 1-3. The length of the telescopic rod can be adjusted to adapt to more installation environments, greatly improving the applicability of the device. The above are the replaceable parts of the device, and working heads with different shapes, diameters, and sizes can be replaced according to specific situations.

[0050] The ends of the movable support column 7 and the fixed support column 8 are provided with a rectangular groove 7-1 and a rectangular groove 8-1 that match the rectangular base 1-3. The movable support column 7 is connected to the rectangular base 1-3 through the fixing screw 5; the fixed support column 8 is connected to the rectangular base 1-3 through the fixing screw 6. This connection can also be used to replace working heads with different shapes, diameters, and sizes. The fixed support column 8, the I-shaped bracket 9, and the middle-character groove bracket 10 are connected in an F shape. The middle part of the movable support column 7 is provided with an I-shaped through groove 7-2 that matches the I-shaped bracket 9, and the tail end is provided with a T-shaped boss 7-3 that matches the middle-character groove bracket 10 to realize free movement along the I-shaped bracket. The end of the I-shaped bracket 9 is provided with a limiting block 9-1, and the end of the middle-character groove bracket 10 is provided with a limiting block 10-1, which plays a role in preventing the movable support column 7 from sliding out. A threaded hole is made at the end of the T-shaped boss 7-3 of the movable support column 7, and the adjusting locking screw 11 passes through the notch at the bottom of the middle-character groove bracket 10 and is connected to the threaded hole at the end of the T-shaped boss 7-3 to adjust and lock the movable support column 7. The handle 12 is used to facilitate the operator's hand grip for operation. The scale 13 is a graduated measuring ruler used to measure and adjust the distance between the two working heads.

[0051] Device Example 2

[0052] The difference from Device Example 1 is that the working head 1 and the working head 2 are Z-shaped.

[0053] As Figures 9 - 10 , compared with Device Example 1, the Z-shaped rod working head 14 is used to replace the L-shaped rod working head 1, and the Z-shaped rod working head 15 is used to replace the L-shaped rod working head 2. It can also be made into different diameters and lengths according to actual needs (the common hole diameter head specifications are 2.5mm / 3mm in diameter). The movable support column 7 and the cuboid base 14-3 are connected by the fixing screw 5; the fixed support column 8 and the cuboid base 14-3 are connected by the fixing screw 6.

[0054] By using the Z-shaped rod working head 14 and the Z-shaped rod working head 15, the holding direction of the operator can be changed, which is suitable for installing the pallet nut on the workpiece placed vertically, making it more convenient for the operator to use, and the suitable working head can be selected according to the actual situation.

[0055] Example 1

[0056] The device described in Device Example 1 is adopted.

[0057] Install the double-ear pallet self-locking nuts around multiple covers placed horizontally as Figures 8 - 9 and the double-ear pallet self-locking nut gaskets as Figure 10 . The standard number of the double-ear pallet self-locking nut is GB930M6, the double-ear pallet self-locking nut gasket is GB962-6×1, and the number of double-ear pallet self-locking nuts is 120. According to the GB930-88 technical standard, the dimensional standard of the double-ear pallet self-locking nut GB930 is shown in Table 1.

[0058] Table 1 Dimensional standard of double-ear pallet self-locking nut GB930 (unit: mm)

[0059]

[0060] Among them, D is the thread diameter; D1 is the rivet hole diameter; H is the height of the double-ear pallet self-locking nut; b is the thickness at the rivet hole; C is the distance between two rivet holes.

[0061] Combined with Figures 1 - 7 description, design the dimensions of the key components in the device according to Device Example 1:

[0062] As listed in Table 1, the basic dimension of the rivet hole diameter D1 of the double-ear pallet self-locking nut GB930M6 is 2.6mm, and the limit deviation is (+0.12mm, 0mm).

[0063] Formula for the maximum limit size of the hole:

[0064] Dmax = D1 + ES (1)

[0065] Among them, Dmax is the maximum limit size of the hole, D1 is the basic size of the hole, and ES is the upper deviation of the hole.

[0066] Minimum limit size formula for hole:

[0067] Dmin = D1 + EI (2)

[0068] Where Dmin is the minimum limit size of the hole, D1 is the basic size of the hole, and EI is the lower deviation of the hole.

[0069] From formula (1), the maximum limit size of the rivet hole diameter D1 of the double-ear plate self-locking nut GB930M6 is calculated to be 2.72 mm. From formula (2), the minimum limit size of the rivet hole diameter D1 of the double-ear plate self-locking nut GB930M6 is calculated to be 2.6 mm. Therefore, the size range of the rivet hole diameter D1 is between 2.6 mm and 2.72 mm. Since the diameter of the rivet we use is 2.5 mm and the workpiece is placed horizontally. So it is more reasonable for us to select the L-shaped rod working head 1 and the L-shaped rod working head 2 with a diameter of 2.5 mm. It can not only meet the use requirements but also meet the requirement of the limit deviation of ±0.2 mm for the distance C between the two rivet holes.

[0070] It can be found from Table 1 that the basic size of the distance C between the two rivet holes of the double-ear plate self-locking nut GB930M6 is 18 mm. Therefore, the distance between the L-shaped rod working head 1 and the L-shaped rod working head 2 should be adjusted to 18 mm.

[0071] Step 1: Select the L-shaped rod working head 1 with a hole diameter head 1-2 of 2.5 mm and the L-shaped rod working head 2 with a hole diameter head 1-2 of 2.5 mm according to the dimensions of the key components in the device designed in this embodiment, and assemble the device as in Device Example 1;

[0072] Step 2: Adjust the movable support 7 of the device to a reading of 18 mm on the scale 13 and tighten the adjusting locking screw 11 to ensure that the distance between the hole diameter heads 1-2 on the L-shaped rod working head 1 and the L-shaped rod working head 2 is 18 mm;

[0073] Step 3: Place all the double-ear plate self-locking nuts GB930M6 and the double-ear plate self-locking nut gaskets GB962-6×1 on the fabricated hole structural parts, and pass the bolts through the bolt holes and fasten 2 threads;

[0074] Step 4: Insert the hole diameter heads 1-2 on the L-shaped rod working head 1 and the L-shaped rod working head 2 of the adjusted device into the two rivet holes on the structure, the double-ear plate self-locking nut gasket and the double-ear plate self-locking nut to make the two rivet holes on the multi-layer parts concentric;

[0075] Step 5: Tighten the pre-tightening bolts on the double-ear plate self-locking nut and remove this device;

[0076] Step 6: After using this device to align and tighten each double-ear plate self-locking nut one by one, perform the riveting work on the double-ear plate self-locking nut.

[0077] Table 2 shows the comparison of the effects of Example 1 of the present invention with other hole alignment methods.

[0078] Comparison of Hole Alignment Effects in Table 2

[0079] Manual alignment of hole positions Alignment of hole positions with a template - type tool The present invention One - time hole - position alignment rate 20％～30％ 70％～80％ 99％～100％ Working time (minutes) 360 120 30 Labor intensity High Relatively low Low Tool / equipment cost Low High Low

[0080] Example 2

[0081] The device described in Device Example 2 is adopted.

[0082] Single-ear plate self-locking nuts and single-ear plate self-locking nut gaskets are installed on the side bars placed vertically. The standard number of the single-ear plate self-locking nut is GB929M8, the double-ear plate self-locking nut gasket is GB961-8×1, and the number of single-ear plate self-locking nuts is 75. According to the GB929-88 technical standard, the dimension standard of the single-ear plate self-locking nut GB929 is shown in Table 3.

[0083] Table 3 Dimension Standard of Single-ear Plate Self-locking Nut GB929 (unit: mm)

[0084]

[0085] Among them, D is the thread diameter; D1 is the rivet hole diameter; H is the height of the single-ear plate self-locking nut; b is the thickness at the rivet hole; C is the distance between two rivet holes.

[0086] Combined with Figures 9 - 10 explanation, the dimensions of the key components in the device designed according to Device Example 2 are as follows:

[0087] As listed in Table 3, the basic dimension of the rivet hole diameter D1 of the single-ear plate self-locking nut GB929M8 is 3.1mm, and the limit deviation is (+0.16mm, 0mm).

[0088] It is calculated from formula (1) that the maximum limit dimension of the rivet hole diameter D1 of the single-ear plate self-locking nut GB929M8 is 3.26mm, and it is calculated from formula (2) that the minimum limit dimension of the rivet hole diameter D1 of the single-ear plate self-locking nut GB929M8 is 3.1mm. Therefore, the dimension range of the rivet hole diameter D1 is between 3.1mm and 3.26mm. Since the diameter of the rivet we use is 3mm and the workpiece is placed vertically, we select the Z-type rod working heads 14 and 15 with a hole diameter of 3mm at the head, which is more reasonable. It can not only meet the use requirements but also meet the requirement of the limit deviation of ±0.2mm for the distance C between two rivet holes.

[0089] It can be found from Table 3 that the distance C between the two rivet holes of the single-ear plate self-locking nut GB929M8 is 11 mm. Therefore, the distance between the working head 14 of the Z-shaped rod and the working head 15 of the Z-shaped rod should be adjusted to 11 mm.

[0090] Step 1: Select the working head 14 of the Z-shaped rod with a hole diameter head 14-2 of 3 mm in diameter and the working head 15 of the Z-shaped rod with a hole diameter head 14-2 of 3 mm in diameter according to the dimensions of the key components in the device designed in this embodiment, and assemble the device as in Device Example 2.

[0091] Step 2: Adjust the movable support 7 of the device to a reading of 11 mm on the scale 13 and tighten the adjusting locking screw 11 to ensure that the distance between the hole diameter heads 14-2 on the working head 14 of the Z-shaped rod and the working head 15 of the Z-shaped rod is 11 mm.

[0092] Step 3: Place all the single-ear plate self-locking nuts GB929M8 and the single-ear plate self-locking nut gaskets GB961-8×1 on the fabricated hole-containing structural members, and insert the bolts into the bolt holes and thread on 2 turns.

[0093] Step 4: Insert the hole diameter heads 14-2 on the working head 14 of the Z-shaped rod and the working head 15 of the Z-shaped rod on the adjusted device into the two rivet holes on the structure, the single-ear plate self-locking nut gasket, and the single-ear plate self-locking nut to make the two holes on the multi-layer parts concentric.

[0094] Step 5: Tighten the pre-tightening bolts on the single-ear plate self-locking nuts and remove this device.

[0095] Step 6: After using this device to align and tighten each single-ear plate self-locking nut one by one, perform the riveting work on the single-ear plate self-locking nuts.

[0096] Example 3

[0097] Adopt the device described in Device Example 1.

[0098] Install the angular plate self-locking nuts and angular plate nut gaskets on the wide border. The standard number of the angular plate self-locking nuts is GB931M4, the angular plate self-locking nut gasket is GB963-4×1, and the number of the angular plate self-locking nuts is 50. According to the GB931-88 technical standard, the dimensional standards of the angular plate self-locking nut GB931 are shown in Table 4.

[0099] Table 4 Dimensional Standards of Angular Plate Self-Locking Nut GB931 (unit: mm)

[0100]

[0101] Among them, D is the thread diameter; D1 is the rivet hole diameter; H is the height of the angular plate self-locking nut; b is the thickness at the rivet hole; C is the distance between the two rivet holes.

[0102] Combined with Figures 1 - 8 Description: Design the dimensions of the key components in the device according to Device Example 1:

[0103] As listed in Table 4, the basic dimension of the rivet hole diameter D1 of the angular bracket self-locking nut GB931M4 is 2.6mm, and the limit deviation is (+0.12mm, 0mm).

[0104] Calculated from formula (1), the maximum limit dimension of the rivet hole diameter D1 of the angular bracket self-locking nut GB931M4 is 2.72mm, and calculated from formula (2), the minimum limit dimension of the rivet hole diameter D1 of the angular bracket self-locking nut GB931M4 is 2.6mm. Therefore, the dimension range of the rivet hole diameter D1 is between 2.6mm and 2.72mm. Since the diameter of the rivet we use is 2.5mm and it is installed on the wide frame. So we select the L-shaped rod working head 1 and L-shaped rod working head 2 with a diameter of 2.5mm for the working head, and it is more reasonable to stretch the telescopic rods 3 and 4. It can not only meet the use requirements but also meet the requirement of the limit deviation of ±0.2mm for the distance l1 between the two rivet holes.

[0105] It can be found from Table 4 that the distance C between the two rivet holes of the angular bracket self-locking nut GB931M4 is 9.5mm. Therefore, the distance between the L-shaped rod working head 1 and the L-shaped rod working head 2 should be adjusted to 9.5mm.

[0106] Step 1: According to the dimensions of the key components in the device designed in this embodiment, select the L-shaped rod working head 1 with a hole diameter head 1-2 of 2.5mm and the L-shaped rod working head 2 with a hole diameter head 1-2 of 2.5mm, and assemble the device according to Device Example 1;

[0107] Step 2: Adjust the movable support pillar 7 of the device to the reading of 9.5mm on the scale 13 and tighten the adjusting locking screw 11 to ensure that the distance between the hole diameter heads 1-2 on the L-shaped working head 1 and the L-shaped working head 2 is 9.5mm, and stretch the telescopic rods 3 and 4 to adjust to the appropriate position;

[0108] Step 3: Place all the angular bracket self-locking nuts GB931M4 and angular bracket self-locking nut gaskets GB963-4×1 on the fabricated hole structural parts, and insert the bolts into the bolt holes and fasten 2 threads;

[0109] Step 4: Insert the hole diameter heads 1-2 on the L-shaped rod working head 1 and the L-shaped rod working head 2 on the adjusted device into the two rivet holes on the structure, angular bracket self-locking nut gasket and angular bracket self-locking nut to make the two holes on the multi-layer parts concentric;

[0110] Step 5: Tighten the pre-tightening bolts on the angular bracket self-locking nut and remove this device;

[0111] Step 6: After using this device to align and tighten the diagonal plate self-locking nuts one by one, carry out the riveting work on the diagonal plate self-locking nuts.

[0112] In addition to the above cases, this invention is also applicable to the alignment and installation of the hole positions of the plate nuts including but not limited to HB7363-96 / HB7364-96 MJ thread double-ear plate self-locking nuts, HB7365-96 / HB7366-96 MJ thread single-ear plate self-locking nuts, HB7367-96 / HB7368-96 MJ thread diagonal plate self-locking nuts, HB8053-2002 / HB8063-2002 MJ thread angled plate self-locking nuts, HB8056-2002 MJ thread single-ear double-hole plate self-locking nuts, HB8058-2002 MJ thread double-ear plate self-locking nuts, HB8059-2002 MJ thread angled plate self-locking nuts, HB8060-2002 MJ thread single-ear double-hole sealed plate self-locking nuts, HB8061-2002 MJ thread double-ear sealed plate self-locking nuts, HB8062-2002 MJ thread angled sealed plate self-locking nuts, etc.

[0113] The present invention has been disclosed above in preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can, within the scope of the technical solution of the present invention, make some changes or modifications to the above-disclosed structure and technical content to obtain equivalent embodiments of equivalent changes. However, as long as it does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An adjustable device for aligning the holes of a backing plate nut and a gasket, characterized in that the device is composed of a working head (1), a working head (2), a telescopic rod (3), a telescopic rod (4), fixing screws (5), fixing screws (6), a movable support (7), a fixed support (8), an I-shaped bracket (9), a Chinese character groove bracket (10), an adjusting locking screw (11), a handle (12) and a scale (13); the working head (1) and the working head (2) are L-shaped or Z-shaped.

2. The device according to claim 1, characterized in that the working head (1) is composed of a guiding chamfer (1-1), a hole diameter head (1-2) and a rectangular parallelepiped base (1-3); the working head (2) is composed of a guiding chamfer (2-1), a hole diameter head (2-2) and a rectangular parallelepiped base (2-3).

3. The device according to claim 1, characterized in that the movable support (7) is connected to the rectangular parallelepiped base (1-3) by a fixing screw (5); the fixed support (8) is connected to the rectangular parallelepiped base (2-3) by a fixing screw (6); a rectangular parallelepiped groove (7-1) is provided at the top of the movable support (7), and the groove of the rectangular parallelepiped groove (7-1) can match the rectangular parallelepiped base (1-3); a rectangular parallelepiped groove (8-1) is provided at the top of the fixed support (8), and the groove of the rectangular parallelepiped groove (8-1) can match the rectangular parallelepiped base (2-3).

4. The device according to claim 1, characterized in that the fixed support (8), the I-shaped bracket (9) and the Chinese character groove bracket (10) are connected in an F shape.

5. The device according to claim 1, characterized in that the middle part of the movable support (7) is provided with an I-shaped through groove (7-2) matching the I-shaped bracket (9), and the tail end is provided with a T-shaped boss (7-3) matching the Chinese character groove bracket (10) to realize free movement along the I-shaped bracket.

6. The device according to claim 1, characterized in that a limit block (9-1) is provided on the I-shaped bracket (9), and a limit block (10-1) is provided on the Chinese character groove bracket (10) to limit the sliding range of the movable support (7) and prevent the movable support (7) from sliding out.

7. The device according to claim 1, characterized in that a notch is provided at the bottom of the Chinese character groove bracket (10), a threaded hole is provided at the bottom end of the T-shaped boss (7-3), and the adjusting locking screw (11) passes through the notch at the bottom of the Chinese character groove bracket (10) and is connected to the threaded hole at the end of the T-shaped boss (7-3) to adjust and lock the movable support (7).

8. A method for using the adjustable device for aligning the holes of a backing plate nut and a gasket according to any one of claims 1 to 7, characterized in that Adjust the distance between the working head (1) and the working head (2) according to the distance between the two rivet holes of the installed pallet nut. Place the pallet nut and the pallet nut gasket on the fabricated structural member. Pass the bolt through the bolt hole of the pallet nut and thread it on 2 turns. Insert the hole diameter heads (1-2) on the working head (1) and the hole diameter heads (2-2) on the working head (2) of the said device into the two rivet holes on the structure, the pallet nut gasket and the pallet nut to make the two holes on the multi-layer parts concentric. Tighten the pre-tightening bolt on the pallet nut, remove the said device, and perform the riveting work on the pallet nut.

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