Tool and method for installing supporting plate nut in narrow space

Abstract

The invention relates to a tool for installing a supporting plate nut in a narrow space, which comprises a positioner (100), a base plate (13) and a fixing cap (9), and is characterized in that the positioner (100) comprises a handle (120) and a positioning head (110), and a handle head of the handle (120) is fixedly connected to one end of the positioning head (110); the positioning head (110) further comprises a positioning plate (111) and a thin magnet (113), the positioning plate (111) is a flat plate, two counter bores (1111) are formed in the positioning plate (111), and the distance between the two counter bores (1111) is equal to the distance between two rivet mounting holes in the supporting plate nut (10) to be mounted; and the positioning plate (111) and the thin magnet (113) are fixed together. The problem that in the prior art, the supporting plate nut is difficult to install in a narrow space is solved, the installation difficulty of the supporting plate nut in the narrow area is reduced, and meanwhile the installation efficiency of the nut is improved.

Description

Technical Field

[0001] The invention relates to a tool and a method for installing a support plate nut in a narrow space, in particular to a method for installing a support plate nut in a narrow space by riveting. Background Art

[0002] The support nut, also known as the pull rivet nut, is used to connect thin-walled structures or parts that are difficult to process threads. The support nut is installed and fixed at the designated position by riveting. Different parts are connected together through the support nut. This method is used in aerospace, automobile, instrumentation and other fields.

[0003] Normally, when installing the tray nut, the rivets are passed through the mounting holes on both sides of the tray nut, and then the rivet head is supported by a support plate, and the rivet rod is impacted with a hammer or punch to rivet the tray nut in the designated area of ​​the part. However, in actual operation, when the installation area is small or the number of nuts to be installed is large, there are usually the following two difficulties:

[0004] 1) When the installation area is small, there is not enough space for nut installation, which makes the operation difficult.

[0005] 2) When a large number of nuts are to be installed, if the nuts are installed while riveting, it is necessary to frequently replace the assembly rivets and stamping rivets, which is inefficient. Summary of the invention

[0006] The invention provides a tool and a method for installing a support plate nut in a narrow space, so as to conveniently fix the nut and the rivet at the installation position of the workpiece.

[0007] A tool for installing a support plate nut in a narrow space, comprising a positioner 100, a pad 13 and a fixing cap 9, characterized in that the positioner 100 comprises a handle 120 and a positioning head 110, the handle head of the handle 120 is fixedly connected to one end of the positioning head 110; the positioning head 110 further comprises a positioning plate 111 and a thin magnet 113, the positioning plate 111 is a flat plate, and two countersunk holes 1111 are provided on the positioning plate 111, and the distance between the two countersunk holes 1111 is the distance between two rivet mounting holes on the support plate nut 10 to be installed; the positioning plate 111 and the thin magnet 113 are fixed together.

[0008] The handle 120 and the positioning head 110 are connected together by welding.

[0009] The handle 120 and the positioning head 110 are connected together via a connector 300 that matches the handle 120, wherein one end of the connector 300 is fixedly connected to the positioning head 110, and the other end of the connector 300 is sleeved with the handle 120; different handles 120 or positioning heads 110 can be replaced as needed.

[0010] A method for installing a support plate nut in a narrow space, using the tool for installing a support plate nut in a narrow space, is characterized in that it includes the following steps:

[0011] Step 1: Place the two rivets 7 with their rivet heads facing downwards in the two countersunk holes 1111 on the positioning plate 111 of the positioner 100, and pass the rivet rods of the two rivets 7 through the rivet installation holes of the workpiece 6 to be installed through the positioner 100;

[0012] Step 2: Pass the rivet rod of the rivet 7 through the two mounting holes on the support plate nut 10, so that the support plate nut 10 is installed on the workpiece 6 to be installed;

[0013] Step 3: Install the fixing cap 9 on the nail rod of the rivet 7. Note that the fixing cap 9 and the nail rod of the rivet 7 are over-fitted, and the fixing cap 9 should not be loose after installation;

[0014] Step 4: Remove the positioner 100. When removing the positioner 100, be careful to prevent the rivet 7 from separating from the fixing cap 9 and falling off. If they fall off, replace the fixing cap 9 with a smaller diameter than the countersunk hole 1111 to ensure that the fixing cap 9 and the rivet 7 are well matched.

[0015] Step 5: Repeat the first to fourth steps to complete the installation of all support plate nuts 10;

[0016] Step 6, then rivet the support plate nut 10, the specific process is: first pad the backing plate 13 under the rivet head of the rivet 7 of the support plate nut 10 to be riveted, then remove the fixing cap 9 on the rivet rod, and use the pressure head 11 to impact the two rivet rods in turn from the top to thicken the rivet 7, that is, complete the riveting installation of the support plate nut 10;

[0017] Step 7, move the workpiece 6 to be installed, adjust the position of the pad 13, so that the pad 13 is under the support plate nut 10 to be installed, and repeat the operation of step 6; until all the support plate nuts 10 are installed.

[0018] Beneficial effects of the present invention:

[0019] The present invention solves the task of installing a tray nut in a narrow space that is difficult to accomplish with the prior art, reduces the difficulty of installing a tray nut in a narrow area, and improves the installation efficiency of the nut. The present invention proposes a tray nut installation tool, which can conveniently fix the nut and the rivet at the installation position, and after multiple rivets are installed, they are riveted together, which will greatly reduce the difficulty of installing a tray nut in a narrow space, and can effectively improve the installation efficiency of the tray nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 , is a schematic diagram of the structure of the positioner 100 of the present invention;

[0021] Figure 2 , is a schematic structural diagram of the positioning head 110 of the present invention;

[0022] Figure 3 , is a schematic diagram of the state where the support plate nut 10 of the present invention is installed with the rivet 7;

[0023] Figure 4 , is a schematic diagram of a state in which the support plate nut 10 of the present invention is installed together with a workpiece to be installed;

[0024] Figure 5 , is a schematic diagram of the installation of a fixing cap on the rivet 7 connecting the support plate nut 10 and the workpiece to be installed according to the present invention;

[0025] Figure 6 , is a schematic diagram of the state of the pressure head 11 of the present invention impacting the rivet rod;

[0026] Figure 7 , is a schematic diagram of the installation completion state of the support plate nut 10 of the present invention and the workpiece to be installed;

[0027] Figure 8 , a schematic diagram of the state in which the positioning plate 110 and the handle of the present invention are connected together by a joint 300.

[0028] Among them, 6 is a workpiece to be installed, 7 is a rivet, 9 is a fixing cap, 10 is a support plate nut, 11 is a pressure head, 13 is a pad, 100 is a positioner, 110 is a positioning plate, 113 is a thin magnet, 120 is a handle, 300 is a joint, and 1111 is a countersunk hole. DETAILED DESCRIPTION

[0029] The tool consists of two parts: a locator and a fixing cap.

[0030] The positioner consists of a handle and a positioning head.

[0031] The handle can be modified from a screwdriver by removing the screwdriver head portion, or the handle of a replaceable head screwdriver (including an adapter rod) can be directly used.

[0032] The positioning head is composed of two parts, the lower layer is a plate-shaped thin magnet, and the upper layer is a positioning plate 1.

[0033] The positioning plate is a flat plate, and two countersunk holes are processed on the upper surface of the plate according to the distance between the two rivet mounting holes of the support plate nut. The diameter of the countersunk hole is slightly larger than the diameter of the rivet head for mounting the support plate nut. The plate can be made of stainless steel.

[0034] The thin magnets and the flat plate can be connected by brazing.

[0035] The positioning head and the handle can be connected by welding. If the handle adopts a replaceable head screw handle, a joint matching the handle can be processed on the positioning head to realize the connection between the positioning head and the handle.

[0036] The fixing cap is a cylinder made of rubber or plastic. A countersunk hole is processed at one end of the cylinder. The diameter of the countersunk hole is the same as the diameter of the rivet, and the two are interference fit.

[0037] When using, the operation method is as follows:

[0038] The first step is to place the two rivet heads for riveting the support plate nuts downward in the countersunk holes on the locator positioning plate, and pass the two rivet rods through the rivet mounting holes of the workpiece to be installed through the locator.

[0039] The second step is to pass the two mounting holes of the support plate nut through the rivet rod and install it on the workpiece.

[0040] The third step is to install the fixing cap on the rivet rod. Note that the fixing cap and the rivet rod should be well-fitted and the fixing cap should not be loose after installation.

[0041] Step 4: Remove the locator. Be careful to prevent the rivet from separating from the fixing cap and falling off. If it does, replace the fixing cap with a smaller countersunk hole diameter to ensure that the fixing cap and the rivet fit well.

[0042] Step 5. Repeat steps 1 to 4 to complete the installation of all support plate nuts.

[0043] Step 6. When riveting the support plate nut, first place the pad under the rivet head of the support plate nut to be riveted, remove the fixing cap on the rivet rod, and use the pressure head to impact the two rivet rods in turn from above to thicken the rivet and complete the riveting installation of the support plate nut.

[0044] Step 7. Move the workpiece, adjust the position of the pad, and repeat step 6 to complete the installation of all support plate nuts.

[0045] The present invention proposes a support plate nut installation tool and installation method, the tool consists of a positioner and a fixing cap. The positioner consists of a handle and a positioning head. The lower layer of the positioning head is a plate-shaped thin magnet, and the upper layer is a positioning plate. There are two countersunk holes on the positioning plate for placing rivets, the diameter of the countersunk holes is 0.1mm larger than the maximum diameter of the rivet cap, and the countersunk hole spacing is the same as the rivet hole spacing on the support plate nut. The fixing cap is made of a rubber column. Taking a rivet with a diameter of 3mm as an example, the outer diameter of the rubber cap is 5mm, and the inner diameter of the countersunk hole on the rubber cap is 2.9mm.

[0046] When using, the operation method is as follows:

[0047] The first step is to place the two rivet heads for riveting the support plate nuts downward in the countersunk holes on the locator positioning plate, and pass the two rivet rods through the rivet mounting holes of the workpiece to be installed through the locator.

[0048] The second step is to pass the two mounting holes of the support plate nut through the rivet rod and install it on the workpiece.

[0049] The third step is to install the fixing cap on the rivet rod. Note that the fixing cap and the rivet rod should be well-fitted and the fixing cap should not be loose after installation.

[0050] Step 4: Remove the locator. Be careful to prevent the rivet from separating from the fixing cap and falling off. If it does, replace the fixing cap with a smaller countersunk hole diameter to ensure that the fixing cap and the rivet fit well.

[0051] Step 5. Repeat steps 1 to 4 to complete the installation of all support plate nuts.

[0052] Step 6. When riveting the support plate nut, first place the pad under the rivet head of the support plate nut to be riveted, remove the fixing cap on the rivet rod, and use the pressure head to impact the two rivet rods in turn from above to thicken the rivet and complete the riveting installation of the support plate nut.

[0053] Step 7. Move the workpiece, adjust the position of the pad, and repeat step 6 to complete the installation of all support plate nuts.

Claims

1. A tool for installing a support plate nut in a narrow space, comprising a positioner (100), a backing plate (13) and a fixing cap (9), characterized in that: The positioner (100) comprises a handle (120) and a positioning head (110), wherein the handle head of the handle (120) is fixedly connected to one end of the positioning head (110); the positioning head (110) further comprises a positioning plate (111) and a thin magnet (113); the positioning plate (111) is a flat plate, and two countersunk holes (1111) are provided on the positioning plate (111), and the distance between the two countersunk holes (1111) is the distance between two rivet mounting holes on the support plate nut (10) to be installed; the positioning plate (111) and the thin magnet (113) are fixed together.

2. A tool for installing a support plate nut in a narrow space according to claim 1, characterized in that: The handle (120) and the positioning head (110) are connected together by welding.

3. A tool for installing a support plate nut in a narrow space according to claim 1, characterized in that: The handle (120) and the positioning head (110) are connected together via a joint (300) matched with the handle (120), wherein one end of the joint (300) is fixedly connected to the positioning head (110), and the other end of the joint (300) is sleeved with the handle (120); different handles (120) or positioning heads (110) can be replaced as needed.

4. A method for installing a tray nut in a narrow space, using a tool for installing a tray nut in a narrow space according to claims 1-3, characterized in that: The following steps are involved: Step 1: Place the rivet heads of two rivets (7) downwards in two countersunk holes (1111) on the positioning plate (111) of the positioner (100), and pass the shanks of the two rivets (7) through the rivet installation holes of the workpiece (6) to be installed through the positioner (100); Step 2: Pass the rivet rod of the rivet (7) through the two mounting holes on the support plate nut (10), so that the support plate nut 10 is installed on the workpiece (6) to be installed; Step 3: Install the fixing cap (9) on the nail rod of the rivet (7). Note that the fixing cap (9) and the nail rod of the rivet (7) are over-fitted, and the fixing cap (9) should not be loose after installation; Step 4: Remove the positioner (100). When removing the positioner (100), be careful to prevent the rivet (7) and the fixing cap (9) from separating and falling off. If they fall off, replace the fixing cap (9) with a smaller diameter than the countersunk hole (1111) to ensure that the fixing cap (9) and the rivet (7) are well matched. Step 5: Repeat the steps 1 to 4 to complete the installation of all the support plate nuts (10); Step 6: Then, the support plate nut (10) is riveted. The specific process is as follows: first, a pad (13) is placed under the rivet head of a rivet (7) of a support plate nut (10) to be riveted, and then the fixing cap (9) on the rivet rod is removed, and the two rivet rods are impacted from above with a pressure head (11) in turn to thicken the rivet (7), thus completing the riveting installation of the support plate nut (10); Step 7: Move the workpiece (6) to be installed, adjust the position of the backing plate (13), so that the backing plate (13) is under the support plate nut (10) to be installed, and repeat the operation of step 6; until all the support plate nuts (10) are installed.

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