A multi-layer enclosed space assembly positioning and clamping device and its usage method

Abstract

A multi-layer enclosed space assembly positioning and clamping device and its usage method include a tensioning slide rod, a slide barrel, a locking nut, a stop pin, and a guide pin. One end of the tensioning slide rod has a thread that mates with the locking nut, and the outer surface of the other end has a milled groove that mates with the stop pin. The lower surface corresponding to the outer surface has a slide rod guide groove that mates with the guide pin. The slide barrel is a cylinder with a tensioning slide rod passage hole at its center. A stop pin mounting hole and a guide pin mounting hole are symmetrically located at one end of the slide barrel. A tensioning slide rod guide groove protruding from the end face is also provided. In use, the bare end of the tensioning slide rod and the guide groove pass through the pre-drilled hole of the multi-layer product. Tightening the locking nut causes the bare part of the tensioning slide rod to enter the guide groove and recombine with the outer circle of the guide groove to form a near-cylindrical shape, which then enters the pre-drilled hole of the multi-layer product, achieving positioning and tensioning of the multi-layer product.

Description

Technical Field

[0001] This application relates to the field of aircraft assembly and processing, and in particular to a multi-layer enclosed space assembly positioning and clamping device and its usage method. Background Technology

[0002] In the assembly manufacturing industry, product assembly mainly includes three stages: positioning, drilling, and connection. This is a necessary process for assembling components into parts and products. As can be seen from the assembly process, positioning is the first step in the entire process; therefore, the quality of positioning directly determines the quality of subsequent product assembly. In the aircraft assembly field, the positioning conditions are more complex than in other assembly manufacturing industries. Product positioning in aircraft assembly involves numerous confined spaces, closed angle areas, and enclosed areas. Positioning in multi-layered enclosed areas is particularly difficult because after installing positioning connectors in the positioning holes, personnel and tools cannot enter the enclosed area to install locking threads, making it impossible to achieve product positioning and tightening. Currently, some self-locking tightening devices exist on the market, but existing positioning and tightening devices suffer from problems such as large size, complex structure, cumbersome installation and disassembly processes, and poor versatility, hindering widespread application and failing to meet the assembly quality and efficiency requirements of batch production on-site. Therefore, there is an urgent need for a multi-layered enclosed space assembly positioning and clamping device that is simple in structure, easy to use, reliable in function, and highly versatile. Summary of the Invention

[0003] To address the aforementioned technical deficiencies, this application provides a multi-layer enclosed space assembly positioning and clamping device and its usage method.

[0004] A multi-layer enclosed space assembly positioning and clamping device includes a tensioning slide rod, a slide barrel, a locking nut, a stop pin, and a guide pin. The tensioning slide rod has a threaded end that mates with the locking nut, and a milled groove on its outer surface at the other end that mates with the stop pin. A slide rod guide groove corresponding to the outer surface is provided on its lower surface that mates with the guide pin. The slide barrel is cylindrical, with a tensioning slide rod passage hole at its center. A stop pin mounting hole and a guide pin mounting hole are symmetrically located at one end of the slide barrel. A tensioning slide rod guide groove protruding from the end face is also provided. The stop pin and guide pin pass through the stop pin mounting hole and guide pin mounting hole, respectively, and are mounted on the slide barrel. The tensioning slide rod passes through the slide barrel and guide groove and can slide back and forth within the guide groove. The guide pin guides the tensioning slide rod within the guide groove, ensuring that the tensioning slide rod does not rotate when sliding inside the slide barrel. The stop pin limits the tensioning slide rod within the milled groove, preventing the tensioning slide rod from being pulled out when the device is tightened.

[0005] Furthermore, the guide pin has a threaded end and a smooth rod structure at the other end, with a tightening groove at the top of the threaded end.

[0006] Furthermore, the stop pin has a threaded end and a smooth rod structure at the other end, with a "I"-shaped tightening groove at the top of the threaded end.

[0007] Furthermore, the guide pin mounting hole and the stop pin mounting hole are on the same axis.

[0008] Furthermore, the guide pin extends from the outer surface of the slide block onto the inner surface of the slide block at a height less than the height of the slide block guide groove opening, while the groove opening width is greater than the diameter of the guide pin guide rod.

[0009] Furthermore, the height of the guide pin extending from the outer surface of the slide block to the inner surface of the slide block is less than the height of the groove opening of the milled flat groove.

[0010] Furthermore, the inner diameter of the guide groove is greater than or equal to the outer diameter of the tensioning slide rod.

[0011] Furthermore, the maximum outer diameter of the cylindrical-like body formed by the combination of the tensioning slide rod and the guide slide groove is greater than the diameter of the pre-drilled hole on the product.

[0012] The method of using this multi-layer enclosed space assembly positioning and clamping device includes the following steps:

[0013] 1. Install the guide pin on the slide barrel through the guide pin mounting hole, and make the smooth part of the guide pin extend out of the mounting hole and reach the center cavity of the slide barrel;

[0014] 2. Align the end of the guide groove on the tensioning slide bar with the smooth rod of the guide pin inside the slide barrel;

[0015] 3. Pass the tensioning rod through the center hole of the slide barrel, and the bare rod part falls into the guide groove;

[0016] 4. Adjust the position of the tensioning slide bar inside the slide barrel to ensure that the mounting hole of the stop pin on the slide barrel corresponds to the milled groove on the tensioning slide bar;

[0017] 5. Install the stop pin on the slide barrel through the stop pin mounting hole, so that the smooth part of the stop pin extends out of the mounting hole and reaches the center cavity of the slide barrel;

[0018] 6. Install the lock nut onto the thread of the tensioning slide bar;

[0019] 7. When using this device, tighten the lock nut to the outermost end of the tensioning slide bar thread;

[0020] 8. Pass the smooth end of the tensioning rod through the pre-fabrication hole of the multi-layer product first;

[0021] 9. Then, guide the slide through the pre-drilled hole of the multi-layer product so that the end face of the slide is in contact with the outer surface of the multi-layer product.

[0022] 10. Use a pneumatic wrench or manually turn the locking nut toward the bare end of the tensioning slide bar until the bare part of the tensioning slide bar enters the guide groove and recombines with the outer circle of the guide groove to form a near-cylinder, and then enters the pre-drilled hole to form an interference fit with the pre-drilled hole, eliminating the gap of the multi-layer product, tightening and positioning the multi-layer connecting product. At this point, the positioning and connection work of the multi-layer sealed space is completed.

[0023] 11. After the work is completed, turn the locking nut away from the end of the tensioning slide bar until the turning distance of the locking nut is greater than the distance of the tensioning slide bar from the end of the slide bar.

[0024] 12. Tap the threaded end along the smooth rod direction of the tensioning slide bar to make the smooth rod part of the tensioning slide bar completely slide out of the pre-made hole of the multi-layer product;

[0025] 13. Pull the slide barrel along the threaded end of the tensioning slide rod to guide the slide groove to slide completely out of the pre-fabricated hole of the multi-layer product;

[0026] 14. Pull the tensioning slide bar along the threaded end until the bare part of the tensioning slide bar is completely disengaged from the pre-drilled hole of the multi-layer product. At this point, the positioning device is in use.

[0027] The advantages of this invention are that the device has a simple structure, low manufacturing cost, convenient use and maintenance, and strong versatility. The entire positioning, installation, and disassembly process of this device is simple, and it can be applied to the positioning and clamping of multi-layered products with different products and different structural forms. One device can meet the positioning needs of products with different stack thicknesses, and has extremely strong versatility. It is particularly effective in positioning and clamping multi-layered products in enclosed spaces, and can achieve rapid and accurate positioning and clamping of multi-layered products in enclosed spaces. In addition, the device can be installed and disassembled by pneumatic wrench or manually, depending on different working conditions (open, interference, narrow, etc.). Attached Figure Description

[0028] Figure 1 Overall structural view of the device

[0029] Figure 2 Partial view of the device

[0030] Figure 3 Exploded view of the device

[0031] Figure 4 Tensioning slide bar structural view

[0032] Figure 5 Schematic diagram of device application process

[0033] Figure 6 Product final tension state diagram

[0034] Numbering in the diagram: 1-Tightening slide bar, 2-Milled groove, 3-Stop pin mounting hole, 4-Slide barrel, 5-Locking nut, 6-Guide slide groove, 7-Guide pin mounting hole, 8-Slide bar guide groove, 9-Thread, 10-Stop pin, 11-Guide pin, 12-Multi-layer product, 13-Pre-drilled hole for multi-layer product Detailed Implementation

[0035] See appendix Figure 1-5 A multi-layer enclosed space assembly positioning and clamping device includes a tensioning slide rod 1, a slide barrel 4, a locking nut 5, a stop pin 10, and a guide pin 11. The tensioning slide rod 1 has a threaded section at one end that mates with the locking nut 5, and a milled groove 2 on the outer surface of the other end that mates with the stop pin 10. A guide groove 8 corresponding to the outer surface of the other end is provided on the lower surface of the slide rod that mates with the guide pin 11. The slide barrel 4 is cylindrical, with a through hole for the tensioning slide rod 1 at its center, and stop pin mounting holes 3 and guide pin mounting holes symmetrically located at one end of the slide barrel 4. 7. At the same time, a tensioning slide rod guide groove 6 protruding from the end face is provided. The stop pin 10 and the guide pin 11 pass through the stop pin mounting hole 3 and the guide pin mounting hole 7 respectively and are installed on the slide barrel 4. The tensioning slide rod 1 passes through the slide barrel 4 and the guide groove 6 and can slide back and forth in the guide groove 6. The guide pin 11 guides the tensioning slide rod 1 in the slide rod guide groove 8 to ensure that the tensioning slide rod 1 does not rotate when sliding inside the slide barrel 4. The stop pin 10 limits the tensioning slide rod 1 in the milled groove 2 to prevent the tensioning slide rod 1 from being pulled out when the device is tightened.

[0036] The guide pin 11 has a threaded end and a smooth rod structure at the other end, with a tightening groove at the top of the threaded end.

[0037] The stop pin 10 has a threaded end and a smooth rod structure at the other end, with a tightening groove at the top of the threaded end.

[0038] The guide pin mounting hole 7 and the stop pin mounting hole 3 are on the same axis.

[0039] The guide pin 11 passes through the outer surface of the slide barrel 4 and extends out of the inner surface of the slide barrel 4. The height of the guide pin 11 is less than the height of the groove opening of the slide bar guide groove 8, and the width of the groove opening is greater than the diameter of the guide pin guide rod.

[0040] The height of the guide pin 10 extending from the outer surface of the slide 4 onto the inner surface of the slide 4 is less than the height of the groove opening of the milled groove 2.

[0041] The inner diameter of the guide groove 6 is greater than or equal to the outer diameter of the tensioning slide rod 1.

[0042] The maximum outer diameter of the cylindrical-like body formed by the combination of the tensioning slide rod 1 and the guide slide groove 6 is greater than the diameter of the pre-drilled hole 13 on the product.

[0043] The method of using this multi-layer enclosed space assembly positioning and clamping device includes the following steps:

[0044] 1. Install the guide pin 11 on the slide 4 through the guide pin mounting hole 7, and make the smooth part of the guide pin 11 extend out of the guide pin mounting hole 7 and reach the center cavity of the slide 4;

[0045] 2. Align the end of the guide groove 8 on the tensioning slide bar 1 with the smooth rod of the guide pin 11 inside the slide barrel 4;

[0046] 3. Pass the tensioning rod 1 through the center hole of the slide barrel 4, and the bare rod part falls into the guide groove 6;

[0047] 4. Adjust the position of the tensioning slide rod 1 inside the slide barrel 4 to ensure that the stop pin mounting hole 3 on the slide barrel 4 corresponds to the milled groove 2 on the tensioning slide rod 1;

[0048] 5. Install the stop pin 10 on the slide 4 through the stop pin mounting hole 3, so that the smooth rod part of the stop pin 10 extends out of the stop pin 10 and reaches the center hole cavity of the slide 4.

[0049] 6. Install the locking nut 5 onto the thread of the tensioning slide bar 1;

[0050] 7. When using this device, tighten the locking nut 5 to the outermost end of the thread on the tensioning slide bar 1;

[0051] 8. First, pass one end of the smooth rod of the tensioning slide bar 1 through the pre-fabrication hole 13 of the multi-layer product;

[0052] 9. Then, guide the slide 6 through the pre-fabrication hole 13 of the multi-layer product so that the end face of the slide 4 fits against the outer surface of the multi-layer product 12.

[0053] 10. Use a pneumatic wrench or manually turn the locking nut 5 towards the bare end of the tensioning slide bar 1 until the bare part of the tensioning slide bar 1 enters the guide groove 6 and recombines with the outer circle of the guide groove 6 to form a near-cylinder, and then enters the pre-drilled hole 13 of the multi-layer product, forming an interference fit with the pre-drilled hole 13 of the multi-layer product, eliminating the gap of the multi-layer product 12, tightening and positioning the multi-layer product 12. At this point, the positioning and connection work of the multi-layer sealed space is completed.

[0054] 11 After the work is completed, rotate the locking nut 5 away from the smooth end of the tensioning slide bar 1 until the rotation distance of the locking nut 5 is greater than the smooth distance of the tensioning slide bar 1;

[0055] 12. Tap the threaded end along the smooth rod direction of the tensioning slide bar 1 to make the smooth rod part of the tensioning slide bar 1 slide completely out of the pre-made hole 13 of the multi-layer product;

[0056] 13 Pull the slide barrel 4 along the threaded end of the tensioning slide bar 1 to completely slide the guide slide groove 6 out of the pre-made hole 13 of the multi-layer product;

[0057] 14 Pull the tensioning slide bar 1 along the threaded end until the bare part of the tensioning slide bar 1 is completely disengaged from the pre-drilled hole 13 of the multi-layer product. At this point, the positioning device is in use.

Claims

1. A multi-layer enclosed space assembly positioning and clamping device, comprising a tensioning slide rod, a slide barrel, a locking nut, a stop pin, and a guide pin, characterized in that... One end of the tension slide bar is provided with a thread for mating with a lock nut, the outer surface of the other end is provided with a milled flat groove for mating with a stop pin, and the lower surface corresponding to the outer surface is provided with a slide bar guide groove for mating with a guide pin. The slide barrel is a cylinder, and a through hole for the tension slide bar is opened in the center. At a symmetrical position at one end of the slide barrel, a stop pin mounting hole and a guide pin mounting hole are opened. At the same time, a tension slide bar guiding chute protruding from the end face is provided on this end face. The stop pin and the guide pin are respectively installed on the slide barrel through the stop pin mounting hole and the guide pin mounting hole. The tension slide bar passes through the slide barrel and the guiding chute and can slide back and forth in the guiding chute. The guide pin guides the tension slide bar in the slide bar guide groove to ensure that the tension slide bar does not rotate when sliding inside the slide barrel. The stop pin limits the tension slide bar in the milled flat groove to prevent the tension slide bar from being pulled out when the device is tightened.

2. The multi-layer enclosed space assembly positioning and clamping device according to claim 1, characterized in that... One end of the guide pin is threaded and the other end is a smooth rod structure. A "one" - shaped tightening groove is provided at the top of the threaded end.

3. The multi-layer enclosed space assembly positioning and clamping device according to claim 1, characterized in that... One end of the stop pin is threaded and the other end is a smooth rod structure. A "one" - shaped tightening groove is provided at the top of the threaded end.

4. The multi-layer enclosed space assembly positioning and clamping device according to claim 1, characterized in that... The guide pin mounting hole and the stop pin mounting hole are on the same axis.

5. The multi-layer enclosed space assembly positioning and clamping device according to claim 1, characterized in that... The height of the smooth rod of the guide pin protruding from the inner surface of the slide barrel after passing through the outer surface of the slide barrel is less than the height of the notch of the slide bar guide groove, and the width of the notch is greater than the diameter of the smooth rod of the guide pin.

6. The multi-layer enclosed space assembly positioning and clamping device according to claim 1, characterized in that... The height of the smooth rod of the stop pin protruding from the inner surface of the slide barrel after passing through the outer surface of the slide barrel is less than the height of the notch of the milled flat groove.

7. According to the multi - layer closed - space assembly positioning and clamping device described in claim 1, the inner diameter of the guiding chute is greater than or equal to the outer diameter of the tension slide bar.

8. According to the multi - layer closed - space assembly positioning and clamping device described in claim 1, the maximum outer diameter of the quasi - cylinder formed by the combination of the tension slide bar and the guiding chute is greater than the diameter of the pre - formed hole on the product.

9. A method of using the multi-layer enclosed space assembly positioning and clamping device according to any one of claims 1-8, characterized in that... It includes the following steps: 9 - 1 Install the guide pin on the slide barrel through the guide pin mounting hole, and make the smooth rod part of the guide pin extend out of the mounting hole and reach the central hole cavity of the slide barrel; 9 - 2 Align the port of the slide bar guide groove on the tension slide bar with the smooth rod of the guide pin inside the slide barrel; 9 - 3 Pass the tension slide bar through the central hole of the slide barrel, and the smooth rod part falls into the guiding chute; 9 - 4 Adjust the position of the tension slide bar inside the slide barrel to ensure that the stop pin mounting hole on the slide barrel corresponds to the milled flat groove on the tension slide bar; 9 - 5 Install the stop pin on the slide barrel through the stop pin mounting hole, and make the smooth rod part of the stop pin extend out of the mounting hole and reach the central hole cavity of the slide barrel; 9 - 6 Install the lock nut on the thread of the tension slide bar; 9 - 7 When using the device, screw the lock nut to the outermost end of the thread of the tension slide bar; 9 - 8 First pass the smooth rod end of the tension slide bar through the pre - formed hole of the multi - layer product; 9 - 9 Then pass the guiding chute through the pre - formed hole of the multi - layer product so that the end face of the slide barrel fits against the outer surface of the multi - layer product; 9-10 Use a pneumatic wrench or manually turn the locking nut toward the bare end of the tensioning slide bar until the bare part of the tensioning slide bar enters the guide groove and recombines with the outer circle of the guide groove to form a near-cylinder, and then enters the pre-drilled hole to form an interference fit with the pre-drilled hole, eliminating the gap of the multi-layer product, tightening and positioning the multi-layer connected product. At this point, the positioning and connection work of the multi-layer sealed space is completed. After completing the 9-11 work, turn the locking nut away from the smooth end of the tensioning slide bar until the turning distance of the locking nut is greater than the smooth distance of the tensioning slide bar; 9-12 Tap the threaded end along the smooth rod direction of the tensioning slide bar to make the smooth rod part of the tensioning slide bar completely slide out of the pre-made hole of the multi-layer product; 9-13 Pull the slide barrel along the threaded end of the tensioning slide rod to guide the slide groove to slide completely out of the pre-fabricated hole of the multi-layer product; 9-14 Pull the tensioning slide bar along the threaded end until the bare part of the tensioning slide bar is completely disengaged from the pre-drilled hole of the multi-layer product. At this point, the positioning device is in use.

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