Flatness detection tool

Abstract

The utility model belongs to the technical field of lens module detection, and discloses a flatness detection tool which comprises a jig and a flatness detector, the jig is used for placing a lens module shell, the jig sequentially comprises a bottom plate, a limiting plate and a cover plate from bottom to top, the bottom plate and the cover plate can be detachably connected with the limiting plate, and the flatness detector is used for detecting the flatness of the lens module shell. A plurality of limiting holes are formed in the limiting plate at intervals, the shape of the limiting holes is consistent with that of a lens shell, the lens module shell is placed in the limiting holes to be limited, a plurality of strip-shaped grooves are formed in the bottom plate, and the strip-shaped grooves are located below the limiting holes and used for containing protruding areas of the lens module shell. And the lens module shell can be flatly placed. According to the flatness detection tool provided by the utility model, the lens module shell can be flatly placed, the flatness of the lens module shell can be accurately measured, the side surface position of the lens module shell can be prevented from being clamped by a worker in the process of taking the lens module shell, the damage rate of the lens module shell is effectively reduced, and the resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lens module detection, in particular to a flatness detection tool. Background Art

[0002] To ensure the aesthetics of the lens, before assembling the lens module in the lens module housing, the manufacturer needs to check the flatness of the outer wall of the lens module housing to ensure the overall flatness of the lens. The outer side of the lens assembly housing is relatively flat, but the inner side is not flat and has more protruding areas. Therefore, when the staff places the lens module housing on the workbench, the lens module housing cannot remain horizontal. It is necessary to manually take the lens module housing and make it nearly horizontal before measuring the flatness of its outer side, but the measured data is not accurate.

[0003] At the same time, when the staff takes the lens module shell, they mostly take it from the side and often touch a buckle on the side of the lens module shell. The buckle is thin overall and will be damaged by a slight force, resulting in the subsequent inability to assemble the lens module shell and it can only be scrapped, which causes a lot of waste of resources.

[0004] Therefore, there is an urgent need for a flatness detection tool to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a flatness detection tool, which can place the lens module shell flatly, ensure that the staff can accurately measure its flatness, avoid the staff holding the side position of the lens module shell in the process of taking it, effectively reduce the damage rate of the lens module shell, and reduce the waste of resources.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A flatness detection tool, used for detecting the flatness of a lens module housing, comprising:

[0008] A fixture, used for placing the lens module housing, the fixture comprising a bottom plate, a limit plate and a cover plate from bottom to top, the bottom plate and the cover plate can be detachably connected to the limit plate, a plurality of limit holes are arranged at intervals on the limit plate, the shape of the limit holes is consistent with the shape of the lens module housing, a plurality of strip grooves are arranged on the bottom plate, and the strip grooves are located below the limit holes;

[0009] The flatness detector is used to measure the flatness of the lens module housing.

[0010] As a preferred technical solution for the flatness detection tooling, a plurality of the limit holes in the same direction are connected via a connecting groove.

[0011] As a preferred technical solution for the flatness detection tooling, a plurality of protruding columns are arranged on the bottom surface of the limit plate, and mounting holes are arranged on the bottom plate at positions corresponding to the protruding columns, and the protruding columns can be inserted into the mounting holes.

[0012] As a preferred technical solution of the flatness detection tooling, the cover plate is slidably arranged on the limit plate.

[0013] As a preferred technical solution for the flatness detection tooling, baffles are provided on two opposite side edges of the front face of the limiting plate, and slide grooves are provided along the length direction of the baffles, and the two slide grooves are opposite to each other.

[0014] As a preferred technical solution for the flatness detection tooling, a handle is provided on the limit plate.

[0015] As a preferred technical solution for the flatness detection tooling, the area of ​​the cover plate opposite to the limiting hole has a raised groove, and the area of ​​the lens module housing higher than the limiting plate is located in the raised groove.

[0016] As a preferred technical solution for the flatness detection tooling, the depth of the strip groove is 3.12 mm, and the width of the strip groove is 1.8 mm.

[0017] As a preferred technical solution for the flatness detection tooling, the cover plate is made of acrylic plate.

[0018] As a preferred technical solution for the flatness detection tooling, the bottom plate is made of aluminum alloy plate.

[0019] The beneficial effects of the utility model are:

[0020] The flatness detection tool provided by the utility model places the lens module housing through a jig, and at the same time sets a limit plate, and places the lens assembly housing in the limit hole, which can prevent the lens assembly module from moving during the flatness measurement process, and ensure the accuracy of its flatness measurement. By setting the cover plate, it is convenient for the staff to quickly put the lens module housing into the limit hole, reducing the damage rate of the lens module housing; when actually placing the lens module housing, the cover plate and the limit plate can be installed first, and the assembled cover plate and the limit plate can be placed upside down, that is, the cover plate is located below the limit plate, so that when the staff takes the lens module housing, they can take the side that does not need to be detected, and this side is separated by a dividing strip between the placement holes of the lens, and the staff can directly hold the position of the dividing strip to quickly and lightly pick up the lens module housing without causing damage to it, thereby reducing the waste of the lens module housing. After filling the lens module shell with the limit holes, the staff only needs to assemble the base plate and the limit plate together, then turn the assembled fixture upside down so that the base plate is at the bottom, place it on the workbench, and remove the cover plate. At this time, the lens mold base shell that needs to be inspected for flatness is placed facing up, and the staff can quickly inspect it; by setting a strip groove on the base plate, the protruding area of ​​the side of the lens module shell that does not need to be inspected can be placed, so that the lens module shell can be placed flat on the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded view of the lens module flatness detection tooling provided by the utility model;

[0022] Figure 2 The utility model is a schematic diagram of the limit plate structure of the lens module flatness detection tooling provided by the utility model.

[0023] In the figure:

[0024] 1. fixture; 11. bottom plate; 111. strip groove; 112. mounting hole;

[0025] 12, limiting plate; 121, limiting hole; 122, protruding column; 123, stop bar; 1231, slide groove;

[0026] 13. Cover plate; 131. Raised groove. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] like Figure 1 and Figure 2 As shown, this embodiment provides a flatness detection tool for detecting the flatness of a lens module housing. The flatness detection tool includes a jig 1 and a flatness detector, wherein the jig 1 is used to place the lens module housing so that one of its outer sides is placed flat, and the flatness detector is used to measure the flatness of the lens module housing. The jig 1 includes a bottom plate 11, a limit plate 12, and a cover plate 13 arranged in sequence from bottom to top. Both the bottom plate 11 and the cover plate 13 can be detachably connected to the limit plate 12. A plurality of limit holes 121 are provided at intervals on the limit plate 12. The shape of the limit hole 121 is consistent with the shape of the lens module housing. The lens module housing is placed in the limit hole 121 to limit the lens module housing and prevent it from moving.

[0032] The setting of the cover plate 13 is convenient for the staff to quickly put the lens module housing into the limiting hole 121, and can reduce the damage rate of the lens module housing. When the lens module housing is actually placed, the staff will first install the cover plate 13 and the limiting plate 12, and turn the assembled cover plate 13 and the limiting plate 12 upside down, that is, the cover plate 13 is located below the limiting plate 12, so that when the staff takes the lens module housing, they can take one side of the inner side, and this side is provided with a dividing strip between the placement holes of the lens. The staff can directly take the position of the dividing strip to quickly and easily pick up the lens module housing without causing damage to it, thereby reducing the waste of the lens module housing. After the lens module housing is filled with the limiting hole 121, the staff only needs to assemble the bottom plate 11 and the limiting plate 12 with each other, and then turn the assembled fixture 1 upside down so that the bottom plate 11 is located at the bottom, and is placed on the workbench. The staff removes the cover plate 13, and at this time, one side of the outer side of the lens mold base housing is placed upward, and the staff can quickly detect it. Placing the lens module housing through the above-mentioned solution can effectively reduce the damage rate during the process of taking and placing it, and reduce the waste of resources.

[0033] A plurality of strip grooves 111 are also provided on the bottom plate 11. After the jig 1 is assembled, the strip grooves 111 are located below the limiting holes 121 and opposite to the limiting holes 121. The strip grooves 111 are used to place the protruding area on the inner side of the lens module shell so that the lens module shell can be placed flat on the bottom plate 11.

[0034] Preferably, the plurality of limiting holes 121 in the same direction of the limiting plate 12 are connected via the connecting groove. On the one hand, it can not only reduce the mass of the limiting plate 12, but also make the fixture 1 lighter as a whole. On the other hand, the plurality of limiting holes 121 in the same direction can be processed and formed at one time, thereby reducing the processing difficulty of the limiting plate 12.

[0035] For example, regarding the disassembly and installation of the limiting plate 12 and the bottom plate 11, a protruding column 122 is provided on the bottom surface of the limiting plate 12, and a mounting hole 112 is provided on the bottom plate 11 at a location corresponding to the protruding column 122. In actual assembly, the staff inserts the protruding column 122 into the mounting hole 112 corresponding thereto, and the assembly of the bottom plate 11 and the limiting plate 12 is completed. The protruding column 122 can be provided at the four corners of the limiting plate 12, avoiding the limiting hole 121. There is no specific restriction on the connection form between the bottom plate 11 and the limiting plate 12, as long as the two can be disassembled and connected.

[0036] Regarding the disassembly connection between the cover plate 13 and the limiting plate 12, the limiting plate 12 is slidably arranged on the limiting plate 12 to selectively cover the limiting plate 12. When the staff completely pushes out the cover plate 13, the cover plate 13 is separated from the limiting plate 12. Exemplarily, a stop bar 123 is arranged on two opposite sides of the front of the limiting plate 12, and a slide groove 1231 is arranged along the length direction of the stop bar 123, and the two slide grooves 1231 are opposite. During assembly, the staff pushes the cover plate 13 along the slide groove 1231 to complete the assembly of the two. Preferably, in order to facilitate the staff to push the cover plate 13, a handle is also arranged on the cover plate 13.

[0037] In this embodiment, the area of ​​the cover plate 13 opposite to the limiting hole 121 has a protruding groove 131, wherein the area of ​​the lens module shell higher than the limiting plate 12 is located in the protruding groove 131, and the protruding groove 131 can be selectively set according to the thickness of the lens module shell. If the lens module shell is relatively thick, the protruding groove 131 can be selected to be set on the cover plate 13. If the lens module shell is relatively thin, there is no need to set the protruding groove 131 on the cover plate 13, and no limitation is made here.

[0038] In this embodiment, the depth of the strip groove 111 is 3.12 mm, and the width of the strip groove 111 is 1.8 mm, which can accommodate the protruding area of ​​the lens module housing of most small sizes that does not need to detect the flatness. For the housing of the lens module of large size, the size of the strip groove 111 can be adjusted accordingly so that lens module housings of different specifications can be placed.

[0039] Preferably, the cover plate 13 may be made of an acrylic plate to reduce the weight of the cover plate 13 and further improve the lightness of the fixture 1. The bottom plate 11 may be made of an aluminum alloy plate to ensure the service life of the fixture 1.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A flatness detection tool for detecting the flatness of a lens module housing, characterized in that: include: A fixture (1) is used to place a lens module housing, the fixture (1) comprising, from bottom to top, a base plate (11), a limiting plate (12) and a cover plate (13), the base plate (11) and the cover plate (13) being detachably connected to the limiting plate (12), the limiting plate (12) being provided with a plurality of limiting holes (121) at intervals, the shape of the limiting holes (121) being consistent with the shape of the lens module housing, the base plate (11) being provided with a plurality of strip grooves (111), the strip grooves (111) being located below the limiting holes (121); The flatness detector is used to measure the flatness of the lens module housing.

2. The flatness detection tool according to claim 1, characterized in that: A plurality of the limiting holes (121) in the same direction are connected via the connecting groove.

3. The flatness detection tool according to claim 1, characterized in that: A plurality of protruding columns (122) are arranged on the bottom surface of the limiting plate (12), and mounting holes (112) are arranged on the bottom plate (11) at locations corresponding to the protruding columns (122), and the protruding columns (122) can be inserted into the mounting holes (112).

4. The flatness detection tool according to claim 1, characterized in that: The cover plate (13) is slidably arranged on the limiting plate (12).

5. The flatness detection tool according to claim 4, characterized in that: Two side edges of the limiting plate (12) facing each other on the front side are provided with blocking bars (123), and a sliding groove (1231) is provided along the length direction of the blocking bar (123), and the two sliding grooves (1231) are facing each other.

6. The flatness detection tool according to claim 5, characterized in that: The limiting plate (12) is provided with a handle.

7. The flatness detection tool according to claim 1, characterized in that: The area of ​​the cover plate (13) opposite to the limiting hole (121) has a protruding groove (131), and the area of ​​the lens module housing higher than the limiting plate (12) is located in the protruding groove (131).

8. The flatness detection tool according to claim 1, characterized in that: The depth of the strip-shaped groove (111) is 3.12 mm, and the width of the groove opening of the strip-shaped groove (111) is 1.8 mm.

9. The flatness detection tool according to any one of claims 1 to 8, characterized in that: The cover plate (13) is made of an acrylic plate.

10. The flatness detection tool according to any one of claims 1 to 8, characterized in that: The bottom plate (11) is made of an aluminum alloy plate.

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