A locking plate bending device

Abstract

The application belongs to the field of connecting mechanism, and particularly relates to a lock piece bending device, a base body, a limiting plate, a moving rod, a spring, a positioning block and a pressing rod. The upper surface of the base body is provided with a first groove for accommodating the positioning block and a second groove for accommodating the spring. The lock piece comprises a mounting part and a bending part. The mounting part is mounted on the upper surface of the positioning block and is pressed by the limiting plate embedded in the sliding rail on the upper surface of the base body. The bending part extends out of the upper surface of the base body. The moving rod extends into the second groove through the limiting plate. One end of the spring abuts against the groove wall of the second groove, and the other end abuts against the part of the moving rod extending into the second groove, so that the limiting plate is kept pressed against the mounting part in a free state. When the moving rod is slid, the limiting plate is separated from the mounting part. The pressing rod is hinged to the end surface of the base body. The bending part is bent along the edge of the base body by rotating the pressing rod. The cylindrical pressing rod avoids the lock piece from being subjected to shearing force in the bending process, so that the deformation and damage of the lock piece in the bending process are reduced.

Description

Technical Field

[0001] The present application belongs to the field of connection mechanisms, and in particular relates to a locking plate bending device. Background Art

[0002] The locking plate locking structure is a locking structure widely used in modern assembly production processes. It is generally used to cooperate with the threaded structure. The interference between the locking plate and the body is used to prevent the threaded structure from loosening. The country has formulated a rich and detailed assembly standard for the locking plate locking structure. The current method of bending the locking plate by knocking often results in the appearance and clearance of the locking plate not meeting the requirements after installation. Considering that in the assembly process of aircraft engines, large casing structural parts and other external parts are often locked in large quantities using locking plate structures, repeated assembly caused by unqualified locking plate installation greatly reduces the efficiency and progress of engine assembly. Therefore, this paper invents a special locking plate bending device based on the structural characteristics of the locking plate. It can achieve rapid and non-destructive bending of a large number of locking plates through auxiliary means such as measurement, so that they can be directly used for assembly, greatly improving the efficiency and success rate of locking plate installation.

[0003] The prior art solutions and shortcomings of the prior art related to the present invention are as follows:

[0004] At present, the bending of the locking plate positioning claw mainly relies on tapping with tools, such as using a hammer or rubber hammer. After the locking plate and the corresponding threaded structure are installed in place, the suspended part of the locking plate positioning claw is gently tapped until the positioning claw bends until the head is completely in contact with the surface of the component.

[0005] Although this installation method is relatively simple and intuitive, it has two major problems:

[0006] (1) During the knocking process, the completed threaded structure and the installation status of the fastened structure are easily damaged, and the potential risks are difficult to assess. In addition, the uneven force during knocking may cause unexpected deformation and damage to the locking plate positioning claws. From actual production experience, it is often caused that the surface of the locking plate is damaged after installation.

[0007] (2) The locking plate has no positioning structure before bending, so it is very easy to rotate due to friction during the tightening process of the threaded structure, resulting in different installation conditions for similar locking plates. In some extreme cases, the positioning claw cannot be bent normally, and the position of the locking plate cannot be adjusted after the threaded structure is tightened, and it can only be reinstalled. Summary of the Invention

[0008] In order to solve the above problems, the present application provides a locking plate bending device, comprising:

[0009] Base, limit plate, moving rod, spring, positioning block and pressure rod;

[0010] The upper surface of the base body has a first groove for accommodating the positioning block and a second groove for accommodating the spring; the locking piece includes a mounting portion and a bent portion, the mounting portion is mounted on the upper surface of the positioning block and is pressed by a limit plate embedded in the slide rail on the upper surface of the base body, and the bent portion extends out of the upper surface of the base body, and the extension length of the bent portion is changed by adjusting the position of the positioning block in the first groove;

[0011] The moving rod passes through the limiting plate portion and extends into the second groove. One end of the spring abuts against the groove wall of the second groove and the other end abuts against the portion of the moving rod extending into the second groove, so that the limiting plate keeps pressing the mounting portion in a free state. When the moving rod is slid, the limiting plate is separated from the mounting portion.

[0012] The pressure rod is hinged to the end surface of the base body, and the bending portion is bent along the edge of the base body by rotating the pressure rod.

[0013] Preferably, a threaded through hole is provided on the wall surface of the first groove, a clamping bolt is installed in the threaded through hole, and the clamping bolt adjusts the position of the positioning block by pressing against the positioning block.

[0014] Preferably, the pressure rod is covered with a rotating sleeve at a position where the pressure rod contacts the locking plate, and when the pressure rod bends the locking plate, the rotating sleeve rolls along the locking plate.

[0015] Preferably, the pressure rod has a bend at a position where it contacts the locking piece, and the bend enables the pressure rod to be in line contact with the locking piece.

[0016] Preferably, the pressure rod is hinged on a short shaft on the side of the base, the end face of the short shaft has an axial internal threaded hole, the compression screw passes through the compression sleeve and is connected to the internal threaded hole to fix the compression sleeve on the end face of the short shaft, and an end face bearing is installed in the compression sleeve to reduce the friction between the pressure rod and the end face.

[0017] Preferably, the mounting portion of the locking piece has a circular through hole, the upper surface of the positioning block has a circular protrusion, and the locking piece is mounted on the circular protrusion through the circular through hole and mounted on the positioning block.

[0018] Preferably, the height of the circular protrusion is the same as the thickness of the locking plate.

[0019] The technical problems solved by this application include:

[0020] (1) The present invention proposes a device specifically for positioning and bending a locking plate, which uses a cylindrical pressure rod to prevent the locking plate from being subjected to shear force during the bending process, thereby reducing deformation and damage to the locking plate during the bending process.

[0021] (2) The present invention determines the bending amount of the positioning claw for lock pieces of different types, sizes, thicknesses, and applicable scenarios through an auxiliary measurement method, and completes repeated clamping and positioning of multiple lock pieces of the same type by adjusting and replacing the positioning blocks, thereby ensuring a relatively high bending accuracy of the lock piece positioning claw, thereby ensuring the replaceability of the lock piece after bending.

[0022] (3) By bending the locking plate independently outside the component, the problem of changing the assembly state of the component due to hitting the locking plate in the component state is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a cross-sectional view of the initial state of the locking plate bending device of a preferred embodiment of the present application;

[0024] Figure 2 This is a cross-sectional view of a locking plate bending device in a preferred embodiment of the present application in a bent state;

[0025] Figure 3 This is a top view of the initial state of the locking plate bending device of a preferred embodiment of the present application;

[0026] Figure 4 This is a top view of the locking plate bending device in a preferred embodiment of the present application in a bent state. DETAILED DESCRIPTION

[0027] To make the technical solution and its advantages of the present application clearer, the technical solution of the present application will be described in further detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of the present application and are only used to explain the present application, not to limit the present application. It should be noted that, for ease of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0028] In addition, unless otherwise defined, the technical or scientific terms used in the description of this application should have the ordinary meanings understood by those of ordinary skill in the art to which this application belongs. The words "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer" used in the description of this application are only used to indicate relative directions or positional relationships, and do not imply that the device or component must have a specific orientation, be constructed, or operate in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. Therefore, they should not be understood as limitations on this application. The words "first," "second," "third," and similar terms used in the description of this application are used only for descriptive purposes to distinguish different components and should not be understood to indicate or imply relative importance. The words "one," "an," or "the" used in the description of this application should not be understood as absolute limitations on quantity, but should be understood as meaning the presence of at least one. The words "include" or "comprises" used in the description of this application mean that the element or object listed before the word includes the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects.

[0029] In addition, it should be noted that, unless otherwise clearly stipulated and limited, the words "install", "connect", "connect" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0030] like Figure 1-4 As shown, in order to solve the above problems, the present application provides a locking plate bending device, comprising:

[0031] It consists of base 01, limit plate 02, moving rod 03, spring 04, positioning block 05, locking piece 06, pressing rod 07, rotating sleeve 08, end bearing 09, pressing sleeve 10, pressing screw 11, and sleeve rod 12;

[0032] The upper surface of the base 01 has a first groove for accommodating the positioning block 05 and a second groove for accommodating the spring; the locking piece 06 includes a mounting portion and a bent portion. The mounting portion is mounted on the upper surface of the positioning block 05 and is pressed by a limit plate 02 embedded in the slide rail on the upper surface of the base 01. The bent portion extends out of the upper surface of the base 01. Adjusting the position of the positioning block 05 in the first groove changes the length of the bent portion.

[0033] The moving rod 03 partially passes through the limiting plate 02 and extends into the second groove. One end of the spring 04 abuts against the wall of the second groove and the other end abuts against the portion of the moving rod 03 extending into the second groove, so that the limiting plate 02 keeps pressing the mounting portion in a free state. When the moving rod 03 is slid, the limiting plate 02 is separated from the mounting portion.

[0034] The pressure rod 07 is hinged to the end surface of the base 01 , and the pressure rod 07 is rotated to make the bending portion bend along the edge of the base 01 .

[0035] Preferably, a threaded through hole is provided on the wall surface of the first groove, and a clamping bolt 13 is installed in the threaded through hole. The clamping bolt 13 adjusts the position of the positioning block 05 by pressing the positioning block 05 .

[0036] Preferably, the pressure rod 07 is covered with a rotating sleeve 08 at the position where the pressure rod 07 contacts the locking plate 06 , and when the pressure rod 07 bends the locking plate 06 , the rotating sleeve 08 rolls along the locking plate 06 .

[0037] Preferably, the pressure rod 07 has a bend at the position where it contacts the locking piece 06 , and the bend enables the pressure rod 07 to be in line contact with the locking piece 06 .

[0038] Preferably, the pressure rod 07 is hinged on the short shaft on the side of the base 01, and the end face of the short shaft has an axial internal threaded hole. The clamping screw 11 passes through the clamping sleeve 10 and is connected to the internal threaded hole to fix the clamping sleeve 10 on the end face of the short shaft. An end face bearing 09 is installed in the clamping sleeve 10 to reduce the friction between the pressure rod 07 and the end face.

[0039] Preferably, the mounting portion of the locking piece 06 has a circular through hole, the upper surface of the positioning block 05 has a circular protrusion, and the locking piece 06 is mounted on the circular protrusion through the circular through hole and the positioning block 05.

[0040] Preferably, the height of the circular protrusion is the same as the thickness of the locking piece 06 .

[0041] The specific measurement method is:

[0042] (1) Determine the position of the positioning block 05 by measuring and calculating, combined with the size of the locking piece, and adjust and clamp the positioning block 05;

[0043] (2) Install the locking piece 06 on the limiting cylinder of the positioning block, and push the limiting plate 02 through the elasticity of the spring 04 to complete the clamping of the locking piece 06;

[0044] (3) Shake the pressure rod 07 to bend the positioning claw of the extended and suspended locking piece 06. When the pressure rod 07 is shaken to the bottom, the positioning claw is completely bent;

[0045] (4) Repeat steps 2 to 3 to complete the batch bending of the same type of lock pieces.

[0046] The advantages of the technical solution of the present invention are mainly reflected in:

[0047] (1) Non-destructive bending of the locking plate: It avoids damaging the locking plate positioning claw by means of knocking, etc., and uses a cylindrical pressure rod for bending to prevent the positioning claw from being damaged by shear force.

[0048] (2) Good bending quality: The bending length of the positioning claw is guaranteed by the calculation result, which avoids the problems of insufficient bending length, insufficient bending amount, and excessive gap after bending caused by manual knocking.

[0049] (3) High bending efficiency: The positioning block ensures the repeated clamping and positioning of the same type of lock pieces, and the clamping is simple, which is very suitable for the installation process of large quantities of the same type of lock pieces. It can greatly shorten the time of manual adjustment and locking of the lock pieces and improve assembly efficiency.

[0050] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A locking plate bending device, characterized in that: include: Base (01), limiting plate (02), moving rod (03), spring (04), positioning block (05) and pressure rod (07); The upper surface of the base (01) has a first groove for accommodating a positioning block (05) and a second groove for accommodating a spring; the locking piece (06) includes a mounting portion and a bending portion, the mounting portion being mounted on the upper surface of the positioning block (05) and pressed by a limiting plate (02) embedded in a slide rail on the upper surface of the base (01); the bending portion extends out of the upper surface of the base (01); and the extension length of the bending portion is changed by adjusting the position of the positioning block (05) in the first groove; The moving rod (03) passes through the limiting plate (02) and partially extends into the second groove, one end of the spring (04) abuts against the groove wall of the second groove and the other end abuts against the portion of the moving rod (03) extending into the second groove, so that the limiting plate (02) keeps pressing the mounting portion in a free state; when the moving rod (03) is slid, the limiting plate (02) is separated from the mounting portion; The pressure rod (07) is hinged to the end surface of the base (01), and the pressure rod (07) is rotated to bend the bending portion along the edge of the base (01); The pressure rod (07) is covered with a rotating sleeve (08) at a position where the pressure rod (07) contacts the locking plate (06). When the pressure rod (07) bends the locking plate (06), the rotating sleeve (08) rolls along the locking plate (06); The pressure rod (07) has a bend at a position where it contacts the locking plate (06), and the bend enables the pressure rod (07) to be in line contact with the locking plate (06); The pressure rod (07) is hinged on a short shaft provided on the side of the base (01), and the end face of the short shaft has an axial internal threaded hole. The pressing screw (11) passes through the pressing sleeve (10) and is connected to the internal threaded hole so that the pressing sleeve (10) is fixed to the end face of the short shaft. An end face bearing (09) is installed in the pressing sleeve (10) to reduce the friction between the pressure rod (07) and the end face.

2. The locking plate bending device according to claim 1, characterized in that: A threaded through hole is provided on the wall surface of the first groove, and a clamping bolt (13) is installed in the threaded through hole. The clamping bolt (13) adjusts the position of the positioning block (05) by supporting the positioning block (05).

3. The locking piece bending device according to claim 1, wherein: The mounting portion of the locking piece (06) has a circular through hole, the upper surface of the positioning block (05) has a circular protrusion, and the locking piece (06) is mounted on the circular protrusion through the circular through hole and is installed with the positioning block (05).

4. The locking piece bending device according to claim 3, wherein: The height of the circular protrusion is the same as the thickness of the locking piece (06).

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