Auxiliary limiting device and positioning plate

By setting auxiliary limiting devices for the base and rolling elements on the positioning plate, the problem of large tooling easily tilting due to its weight during hoisting is solved, achieving accurate positioning of the tooling, reducing installation difficulty, and minimizing the risk of damage.

CN223509536UActive Publication Date: 2025-11-04BEIJING LIWEIER AVIATION PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202423185315.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-11-04
Estimated Expiration
2034-12-23

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Abstract

An auxiliary limiting device and a positioning plate are used for auxiliary limiting of a large tool when the large tool is hoisted on the positioning plate, and the auxiliary limiting device comprises a base installed on the positioning plate and located at the corresponding position of the edge of the large tool; the rolling part is arranged on the base, the rolling part is exposed out of the surface of the side, facing the large tool, of the base, and the position of the rolling part is arranged in the mode that when the large tool is hoisted to be downwards placed at the preset position on the positioning plate, the rolling part abuts against the edge of the large tool. When the large tool is hoisted on the positioning plate, auxiliary limiting is carried out on the large tool through the base, so that a crown block is used for accurately hoisting and arranging the large workpiece at a preset position on the positioning plate. Therefore, not only can the problems of inclination and improper installation caused by the problems that the tool is large in dead weight, easy to incline and the like be eliminated, but also the difficulty degree of installation can be reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece processing technical field, especially a kind of auxiliary limiting device and positioning plate. BACKGROUND

[0002] In the field of aerospace, large tooling is often used. Due to the large self-weight of the large tooling, when the tooling is hoisted by a crane and connected to the positioning plate for installation, the tooling is prone to tilting, which causes the axis of the positioning pin and the positioning hole to be not parallel, resulting in difficulty in installation and the tooling base being easily damaged. Therefore, there is an urgent need for an auxiliary limiting device and positioning plate to eliminate the tilting and installation problems caused by the large self-weight and tilting of the tooling, thereby reducing the risk of damaging the tooling base and the difficulty of installation. SUMMARY

[0003] In view of the above problems of the prior art, the present application provides an auxiliary limiting device and positioning plate to eliminate the tilting and installation problems caused by the large self-weight and tilting of the tooling when the tooling is hoisted by a crane and connected to the positioning plate for installation, thereby reducing the risk of damaging the tooling base and the difficulty of installation.

[0004] To achieve the above-mentioned purpose, the first aspect of the present application provides an auxiliary limiting device for assisting in limiting a large tooling when the large tooling is hoisted on a positioning plate, comprising: a base, which is installed on the positioning plate and located at a position corresponding to the edge of the large tooling; and a rolling member, which is provided on the base and exposed on the surface of the base towards the large tooling, and positioned to abut against the edge of the large tooling when the large tooling is placed on the predetermined position of the positioning plate.

[0005] With the above structure, the base is located at a position corresponding to the edge of the large tooling, so that when the large tooling is hoisted on the positioning plate, the base can assist in limiting the large tooling, so that the large tooling can be accurately hoisted and placed on the predetermined position of the positioning plate by the crane. Therefore, not only can the tilting and installation problems caused by the large self-weight and tilting of the tooling be eliminated, but also the difficulty of installation can be reduced. At the same time, by providing the exposed rolling member on the surface of the base towards the large tooling, the rolling connection between the base and the large tooling can be converted from sliding connection when the base assists in limiting the hoisted large tooling. Thus, the friction between the large tooling and the base can be reduced, the risk of damaging the tooling base can be reduced, and the difficulty of installation can be reduced.

[0006] As one possible implementation of the first aspect, multiple rolling elements are provided, and the multiple rolling elements are located on the same vertical plane facing the edge of the large tooling.

[0007] By employing the above structure, and arranging multiple rolling elements on the same vertical plane facing one edge of the large tooling, the rolling elements can abut against the large tooling at different heights during downward movement, thus providing auxiliary positioning at varying heights. This improves the auxiliary limiting effect of hoisting large tooling and reduces the difficulty of installation.

[0008] As one possible implementation of the first aspect, the plurality of said rolling elements are arranged in the vertical direction.

[0009] By adopting the above structure and arranging multiple rolling elements in the vertical direction, the installation structure between the base and the rolling elements can be simplified, thereby reducing manufacturing costs.

[0010] As one possible implementation of the first aspect, the rolling element is a roller.

[0011] By adopting the above structure and setting the rolling element as a roller, not only can the structure of the rolling element be simplified and its cost reduced, but the contact area between the rolling element and large tooling can also be increased, reducing the risk of damaging the tooling substrate.

[0012] As one possible implementation of the first aspect, the rollers are of the same size.

[0013] With the above structure, since multiple rolling elements are positioned on the same vertical plane along the edge facing the large tooling, and by making the rolling elements the same size, their axes can be aligned vertically. This simplifies the mounting structure between the base and the rolling elements, thereby reducing manufacturing costs.

[0014] As one possible implementation of the first aspect, the auxiliary limiting device further includes: a track, which is sleeved on the outside of the plurality of rolling elements.

[0015] By employing the above structure and mounting tracks on the outer sides of multiple rolling elements, these elements can abut against the large tooling via the tracks, thereby increasing the contact area with the tooling. This reduces the risk of damaging the tooling substrate.

[0016] As one possible implementation of the first aspect, the rolling element is a ball embedded in the base.

[0017] By adopting the above structure and setting the rolling element as a ball, the installation structure between the base and the rolling element can be simplified, and the manufacturing cost can be reduced.

[0018] A second aspect of this application provides a positioning plate for mounting large tooling, comprising: a main plate, the upper surface of which is parallel to the lower surface of the large tooling; and an auxiliary limiting device mounted on the main plate, wherein the auxiliary limiting device is the auxiliary limiting device described in any one of the first aspects of this application.

[0019] By employing the above structure and incorporating an auxiliary limiting device on the main plate, the base is positioned at the corresponding edge of the large tooling. This allows the base to provide auxiliary restraint when the large tooling is hoisted onto the positioning plate, ensuring accurate placement of the large workpiece in its predetermined position using an overhead crane. This not only eliminates tilting and improper installation caused by the tooling's weight and tendency to tilt, but also reduces installation difficulty. Furthermore, by providing exposed rolling elements on the base's surface facing the large tooling, the sliding connection between the base and the large tooling is converted to a rolling connection when the base provides auxiliary restraint during hoisting. This reduces friction between the large tooling and the base, lowering the risk of damaging the tooling base and simplifying installation.

[0020] As one possible implementation of the second aspect, the auxiliary limiting device is provided in multiple ways.

[0021] By employing the above structure and incorporating multiple auxiliary limiting devices, large tooling can be assisted in being limited at multiple locations during hoisting. This improves the positional accuracy of the large tooling and reduces the difficulty of installation.

[0022] As one possible implementation of the second aspect, multiple auxiliary limiting devices are disposed at the same edge position of the main body plate.

[0023] By adopting the above structure and placing the auxiliary limiting device on the same side of the positioning plate, users can easily adjust the position of large tooling during hoisting, thus facilitating accurate installation of the large tooling in the predetermined position with the assistance of the auxiliary limiting device. This improves the positional accuracy of large tooling and reduces the difficulty of installation.

[0024] As one possible implementation of the second aspect, a plurality of the auxiliary limiting devices are disposed at adjacent side edges of the main body plate.

[0025] By employing the above structure and placing the auxiliary limiting device at the adjacent two side edges of the main body plate, the large tooling can be assisted in limiting its position in two directions during hoisting. This improves the positional accuracy of the large tooling and reduces the difficulty of installation.

[0026] As a possible implementation of the second aspect, a vertical positioning pin is provided on the upper surface of the main body plate, and the positioning pin is located at the position corresponding to the positioning hole of the large tooling.

[0027] By employing the above structure and setting positioning pins at positions corresponding to the positioning holes on the main plate, the large tooling can be positioned by the engagement between the positioning pins and the positioning holes when it is hoisted onto the positioning plate. This improves the positioning accuracy of the large tooling.

[0028] These and other aspects of this invention will become more readily apparent in the following description of several embodiments. Attached Figure Description

[0029] The various features of this utility model and the relationships between them are further explained below with reference to the accompanying drawings. The drawings are exemplary; some features are not shown to scale, and some drawings may omit conventional features in the field of this application that are not essential to this application, or additional features that are not essential to this application may be shown. The combination of features shown in the drawings is not intended to limit this application. Furthermore, throughout this specification, the same reference numerals refer to the same things. Specific descriptions of the drawings are as follows:

[0030] Figure 1 This is a schematic diagram of the auxiliary limiting device in this application;

[0031] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the central base.

[0032] Explanation of reference numerals in the attached figures

[0033] 10 Positioning plate; 100 Main body plate; 200 Positioning pin; 300 Auxiliary limiting device; 310 Base; 320 Rolling parts; 330 Tracks; Tooling 20. Detailed Implementation

[0034] The terms "first, second, third, etc." or similar terms such as module A, module B, module C, etc., used in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that a specific order or sequence may be interchanged where permitted so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0035] The term "comprising" as used in the specification and claims should not be construed as limiting itself to what follows; it does not exclude other elements. Therefore, it should be interpreted as specifying the presence of the mentioned feature, integral, or component, but does not exclude the presence or addition of one or more other features, integrals, or components, or groups thereof. Thus, the statement "equipment comprising means A and B" should not be limited to an equipment consisting solely of components A and B.

[0036] The terms "an embodiment" or "an embodiment" as used in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in at least one embodiment of the present invention. Therefore, the terms "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics can be combined in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0037] Hereinafter, with reference to the accompanying drawings, possible embodiments of the auxiliary limiting device 300 in this application will be described by way of example.

[0038] like Figure 1 , Figure 2 The auxiliary limiting device 300 shown in this application provides auxiliary limiting for the large tooling 20 when it is hoisted onto the positioning plate 10. It includes a base 310 and a rolling element 320. The base 310 is mounted on the positioning plate 10 and located at a position corresponding to the edge of the large tooling 20. The rolling element 320 is disposed on the base 310, protruding from the surface of the base 310 facing the large tooling 20. The rolling element 320 is positioned such that when the large tooling 20 is hoisted downwards and placed at a predetermined position on the positioning plate 10, the rolling element 320 abuts against the edge of the large tooling 20. Therefore, by providing the base 310 on the positioning plate 10 and positioning it at a position corresponding to the edge of the large tooling 20, the large tooling 20 can be auxiliaryly limited when hoisted onto the positioning plate 10, allowing for accurate hoisting and placement of the large workpiece at a predetermined position on the positioning plate 10 using an overhead crane. This not only eliminates the problems of tilting and improper installation caused by the weight and tendency to tilt of the tooling 20, but also reduces the difficulty of installation. Furthermore, by providing exposed rolling elements 320 on the surface of the base 310 facing the large tooling 20, the sliding connection between the base 310 and the large tooling 20 can be converted to a rolling connection when the base 310 provides auxiliary restraint for the large tooling 20 in its hoisted state. This reduces the friction between the large tooling 20 and the base 310, lowers the risk of damaging the tooling 20 base, and reduces installation difficulty.

[0039] likeFigure 2 As shown, in some embodiments, multiple rolling elements 320 are provided, and the edges of the multiple rolling elements 320 facing the large tooling 20 are located on the same vertical plane. Therefore, by arranging the multiple rolling elements 320 on the same vertical plane, the rolling elements 320 can abut against the large tooling 20 at different heights during downward movement of the lifting fixture 20, thereby providing auxiliary positioning of the large tooling 20 at different heights. This improves the auxiliary limiting effect of lifting the large tooling 20 and reduces the difficulty of installation.

[0040] like Figure 2 As shown, in some embodiments, a plurality of rolling elements 320 are arranged in a vertical direction. Therefore, by arranging the plurality of rolling elements 320 in a vertical direction, the mounting structure between the base 310 and the rolling elements 320 can be simplified, thereby reducing manufacturing costs.

[0041] In some embodiments, a plurality of rolling elements 320 are arranged in a left-right direction. Thus, by arranging the plurality of rolling elements 320 in a left-right direction, the contact area between the height position and the large tooling 20 can be increased, reducing the risk of damaging the base of the large tooling 20.

[0042] like Figure 2 As shown, in some embodiments, the rolling element 320 is a roller. Therefore, by setting the rolling element 320 as a roller, not only can the structure of the rolling element 320 be simplified and its cost reduced, but the contact area between the rolling element 320 and the large tooling 20 can also be increased, reducing the risk of damaging the tooling 20 substrate.

[0043] like Figure 2 As shown, in some embodiments, the rollers are of the same size. Since the multiple rolling elements 320 are located on the same vertical plane along the edge facing the large tooling 20, by making the rolling elements 320 the same size, the axis of the rolling elements 320 can be set in the vertical direction. This simplifies the mounting structure between the base 310 and the rolling elements 320, thereby reducing manufacturing costs.

[0044] In some embodiments, the rollers are of different sizes. This increases the flexibility in the design and installation of the auxiliary limiting device 300.

[0045] like Figure 2As shown, in some embodiments, the auxiliary limiting device 300 further includes a track 330, which is fitted over the outer side of the plurality of rolling elements 320. Therefore, by fitting the track 330 over the outer side of the plurality of rolling elements 320, the plurality of rolling elements 320 can abut against the large tooling 20 via the track 330, thereby increasing the contact area with the large tooling 20. This reduces the risk of damaging the tooling 20 base.

[0046] In some embodiments, the rolling element 320 is a ball embedded in the base 310. Therefore, by setting the rolling element 320 as a ball, the mounting structure between the base 310 and the rolling element 320 can be simplified, reducing manufacturing costs.

[0047] The above description provides an exemplary embodiment of the auxiliary limiting device 300. This application also provides a positioning plate 10 for mounting a large tooling 20. Below, with reference to the accompanying drawings, an exemplary embodiment of the positioning plate 10 in this application will be described.

[0048] like Figure 1 As shown, the positioning plate 10 in this application includes a main plate 100 and an auxiliary limiting device 300. The upper surface of the main plate 100 is parallel to the lower surface of the large tooling 20. The auxiliary limiting device 300 is installed on the main plate 100. The auxiliary limiting device 300 can be any of the above-mentioned possible implementations of the auxiliary limiting device 300.

[0049] like Figure 1 As shown, in some embodiments, multiple auxiliary limiting devices 300 are provided. Therefore, by providing multiple auxiliary limiting devices 300, the large tooling 20 can be assisted in limiting its position at multiple locations during hoisting. This improves the positional accuracy of the large tooling 20 and reduces the difficulty of installation.

[0050] like Figure 1 As shown, in some embodiments, multiple auxiliary limiting devices 300 are disposed on the same side edge of the main body plate 100. Therefore, by disposing of the auxiliary limiting devices 300 on the same side edge of the positioning plate 10, the user can easily adjust the position of the large tooling 20 during hoisting, thus facilitating accurate installation of the large tooling 20 in the predetermined position with the assistance of the auxiliary limiting devices 300. This improves the positional accuracy of the large tooling 20 and reduces the difficulty of installation.

[0051] like Figure 1As shown, in some embodiments, multiple auxiliary limiting devices 300 are disposed at adjacent side edges of the main body plate 100. Therefore, by disposing of the auxiliary limiting devices 300 at adjacent side edges of the main body plate 100, the large tooling 20 can be assisted in being limited in two directions during hoisting. This improves the positional accuracy of the large tooling 20 and reduces the difficulty of installation.

[0052] like Figure 1 As shown, in some embodiments, a vertical positioning pin 200 is provided on the upper surface of the main body plate 100, and the positioning pin 200 is located at the position corresponding to the positioning hole of the large tooling 20. Therefore, by providing the positioning pin 200 on the main body plate 100 at the position corresponding to the positioning hole, the large tooling 20 can be positioned by the cooperation between the positioning pin 200 and the positioning hole when it is hoisted onto the positioning plate 10. This improves the positional accuracy of the large tooling 20.

[0053] The above description provides an exemplary description of possible embodiments of the auxiliary limiting device 300 and the positioning plate 10. Below, with reference to the accompanying drawings, a detailed description of the specific structure of the positioning plate 10 in this application will be given in a particular embodiment.

[0054] Figure 1 This is a schematic diagram of the auxiliary limiting device 300 in this application. Figure 1 As shown, the positioning plate 10 includes a main plate 100, positioning pins 200, and an auxiliary limiting device 300. The main plate 100 is a rectangular thick plate, with its upper surface horizontally positioned parallel to the bottom surface of the large tooling 20. Two cylindrical positioning pins 200 are positioned on the upper surface of the main plate 100, corresponding to the positioning holes at the bottom of the large tooling 20. When using overhead cranes or other hoisting tools to hoist the large fixture 20 onto the main plate 100, the auxiliary limiting device 300 can provide auxiliary limiting for the large fixture 20, so that the positioning hole at the bottom of the large fixture 20 can be quickly and accurately aligned with the positioning pin 200. This allows the bottom of the large fixture 20 to fit against the upper surface of the positioning plate 10 after it is hoisted onto the main plate 100, ensuring that the positioning pin 200 is accurately inserted into the positioning hole and that the axis of the positioning pin 200 coincides with that of the positioning hole. This eliminates the problems of tilting and incomplete installation caused by the large weight and tendency to tilt of the fixture 20, and reduces the difficulty of installation.

[0055] like Figure 1As shown, four auxiliary limiting devices 300 are provided, positioned at the two side edges where the main body plate 100 is connected. Specifically, two auxiliary limiting devices 300 are evenly positioned at one side edge of the main body plate 100, and the other two are evenly positioned at the other side edge of the main body plate 100. Thus, the auxiliary limiting devices 300 can provide auxiliary limiting for the large tooling 20 in the left-right and front-back directions, thereby improving the accuracy of hoisting the large tooling 20 and reducing operational difficulty. Simultaneously, positioning the auxiliary limiting devices 300 at the two side edges where the main body plate 100 is connected leaves the other two side edges unoccupied, allowing for more space to move and facilitating position adjustments of the large tooling 20 during hoisting, thereby reducing installation difficulty.

[0056] Figure 2 for Figure 1 A cross-sectional structural diagram of the central base 310. (See diagram below.) Figure 2 As shown, the auxiliary limiting device 300 includes a base 310, rolling elements 320, and a track 330. The base 310 is a square columnar component, with its surface facing the large tooling 20 being a vertical plane, parallel to the corresponding side of the large tooling 20. The base 310 has horizontally arranged through-hole-shaped mounting holes 311, with openings on the surface facing the large tooling 20. Multiple rolling elements 320 are arranged vertically and installed within the mounting holes 311. The rolling elements 320 are rollers, all with the same diameter, and one side of each rolling element 320 protrudes from the opening of the mounting hole 311, all situated on the same vertical surface. The track 330 is annular and sleeved around the outer side of the rolling elements 320. Part of the track 330 protrudes from the surface of the base 310 toward the large tooling 20 and is in the shape of a vertical plane. When the large tooling 20 is hoisted, it can fit against the side of the large tooling 20. It can rotate with the movement of the large tooling 20 when the large tooling 20 is controlled to descend, thereby providing auxiliary limiting for the large tooling 20.

[0057] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this utility model is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. Therefore, although this application has been described in detail through the above embodiments, this utility model is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this utility model, all of which fall within the protection scope of this utility model.

Claims

1. An auxiliary limiting device, characterized in that, When large tooling is hoisted onto the positioning plate, auxiliary limiting is performed on the large tooling, including: The base is mounted on the positioning plate and is located at the corresponding position of the edge of the large tooling; A rolling element is disposed on the base and exposed on the surface of the base facing the large tooling. The rolling element is positioned such that when the large tooling is hoisted and placed downwards at a predetermined position on the positioning plate, the rolling element abuts against the edge of the large tooling.

2. The auxiliary limiting device according to claim 1, characterized in that, Multiple rolling elements are provided, and the edges of the multiple rolling elements facing the large tooling are on the same vertical plane.

3. The auxiliary limiting device according to claim 2, characterized in that, The multiple rolling elements are arranged in the vertical direction.

4. The auxiliary limiting device according to claim 3, characterized in that, The rolling element is a roller.

5. The auxiliary limiting device according to claim 4, characterized in that, The rollers are all the same size.

6. The auxiliary limiting device according to claim 5, characterized in that, Also includes: Tracks, which are fitted over the outside of the plurality of rolling elements.

7. A positioning plate, characterized in that, Used for installing large tooling, including: The main body plate, the upper surface of which is parallel to the lower surface of the large tooling; An auxiliary limiting device is mounted on the main body plate, and the auxiliary limiting device is the auxiliary limiting device according to any one of claims 1-6.

8. The positioning plate according to claim 7, characterized in that, Multiple auxiliary limiting devices are provided.

9. The positioning plate according to claim 8, characterized in that, Multiple auxiliary limiting devices are disposed at the same edge position on the main body plate.

10. The positioning plate according to claim 8, characterized in that, Multiple auxiliary limiting devices are disposed at adjacent two side edges of the main body plate.