Flat packaging device positioning mechanism

Abstract

The utility model discloses a flat packaging device positioning mechanism which comprises a base plate, a middle plate, a top plate and a center block, the base plate is connected with the bottom of the center block, the top plate is connected with the top of the center block, a center hole is formed in the center of the middle plate, and the middle plate is movably matched with the center block through the center hole. Four first limiting grooves are evenly distributed in the middle plate, guide grooves corresponding to the first limiting grooves are formed in the top plate, second limiting grooves are formed in the bottoms of the guide grooves, the first limiting grooves intersect with the second limiting grooves, four movable blocks are movably arranged on the top plate, guide blocks are arranged at the bottoms of the movable blocks, and the guide blocks are arranged in the guide grooves in a sliding fit mode. Limiting columns are arranged on the guide blocks and sequentially penetrate through the second limiting grooves and the first limiting grooves from top to bottom, positioning plates are installed on the four movable blocks, and a rectangular positioning frame is defined by the four positioning plates in the center of the top face of the top plate. According to the utility model, the positioning of flat packaging devices of various specifications can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning mechanisms, and particularly relates to a positioning mechanism for flat-packaged devices. Background Art

[0002] Flat-packaged devices are an electronic component packaging technology, and the most representative ones are quad flat package (QFP) and quad flat no-lead package (QFN). Flat-packaged devices need to form their pins into specific shapes so as to be able to effectively connect with the circuit board. Since flat-packaged devices are small, effective positioning is required during the forming process. How to design a positioning mechanism that can be applicable to various different specifications of flat-packaged devices has become the direction of efforts of technicians in this field. Content of the Utility Model

[0003] The purpose of the utility model is to provide a positioning mechanism for flat-packaged devices, which can completely solve the deficiencies of the above-mentioned prior art.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] A positioning mechanism for flat-packaged devices includes a base plate, an intermediate plate, a top plate and a center block. The base plate is detachably connected to the bottom of the center block, the top plate is detachably connected to the top of the center block. A center hole is opened in the center of the intermediate plate, and the intermediate plate is movably matched with the center block through the center hole. 4 first limiting grooves are evenly distributed on the intermediate plate, guiding grooves are opened on the top plate corresponding to the first limiting grooves, and second limiting grooves are opened at the bottoms of the guiding grooves, and the first limiting grooves intersect with the second limiting grooves. 4 movable blocks are movably arranged on the top plate, guiding blocks are arranged at the bottoms of the movable blocks, and the guiding blocks are slidably matched in the guiding grooves. Limiting columns are arranged on the guiding blocks, and the limiting columns sequentially pass through the second limiting grooves and the first limiting grooves from top to bottom. A positioning plate is installed on each of the 4 movable blocks, and a rectangular positioning frame is formed by the 4 positioning plates at the center of the top surface of the top plate. A positioning ring is detachably installed on the top surface of the top plate, and notch openings are opened on the side wall of the positioning ring corresponding to the movable blocks.

[0006] Further, the base plate, the intermediate plate and the top plate are all disc-shaped, and the center block is a cylinder.

[0007] Further, the first limiting grooves are long circular through grooves, which extend along the radial direction of the intermediate plate.

[0008] Further, the included angle between the second limiting grooves and the first limiting grooves is 95°.

[0009] Further, an adjusting handle is detachably installed on the intermediate plate.

[0010] Further, a threaded hole communicating with the central hole is formed in the side wall of the middle plate, and a locking screw is in threaded fit in the threaded hole.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: simple in structure and reasonable in design, capable of positioning various flat-packaged devices with different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is a three-dimensional structural schematic diagram of the present utility model from another angle;

[0014] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0015] Figure 4 is a three-dimensional structural schematic diagram of the present utility model after removing the positioning ring;

[0016] Figure 5 is Figure 4 exploded structural schematic diagram of;

[0017] Figure 6 is an exploded structural schematic diagram of the base plate, middle plate and top plate in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0019] Such as Figures 1 to 6As shown in the figure, a positioning mechanism for a flat package device includes a base plate 1, an intermediate plate 2, a top plate 3 and a center block 4. The base plate 1 is detachably connected to the bottom of the center block 4, and the top plate 3 is detachably connected to the top of the center block 4. A center hole 5 is provided in the center of the intermediate plate 2, and the intermediate plate 3 is movably matched with the center block 4 through the center hole 5. Four first limiting grooves 6 are evenly distributed on the intermediate plate 2, and guide grooves 7 are provided on the top plate 3 corresponding to the first limiting grooves 6. Second limiting grooves 8 are provided at the bottoms of the guide grooves 7, and the first limiting grooves 6 intersect with the second limiting grooves 8. Four movable blocks 9 are movably arranged on the top plate 3. Guide blocks 10 are provided at the bottoms of the movable blocks 9, and the guide blocks 10 are slidably matched in the guide grooves 7. Positioning columns 11 are provided on the guide blocks 10, and the positioning columns 11 sequentially pass through the second limiting grooves 8 and the first limiting grooves 6 from top to bottom. The four movable blocks 9 are provided with a positioning plate 12. On the top surface center of the top plate 3, the four positioning plates 12 enclose a rectangular positioning frame. A positioning ring 13 is detachably installed on the top surface of the top plate 3, and a notch 14 is provided on the side wall of the positioning ring 13 corresponding to the movable block 9.

[0020] In this embodiment, the base plate 1, the intermediate plate 2 and the top plate 3 are all disc-shaped, and the center block 4 is a cylinder.

[0021] In this embodiment, the first limiting groove 6 is a long circular through groove, which extends along the radial direction of the intermediate plate 2. The included angle between the second limiting groove 8 and the first limiting groove 6 is 95°.

[0022] In this embodiment, an adjusting handle 15 is detachably installed on the intermediate plate 2. The rotation of the intermediate plate 2 can be conveniently adjusted through the adjusting handle 15.

[0023] In this embodiment, a threaded hole communicating with the center hole 5 is provided on the side wall of the intermediate plate 2, and a locking screw 16 is in threaded fit in the threaded hole. By rotating the locking screw 16, the bottom end of the locking screw 16 can be made to abut against the center block 4, thereby locking the position of the intermediate plate 2.

[0024] Working principle: The intermediate plate 2 is driven to rotate through the adjusting handle 15, and then the four movable blocks 9 are driven to move through the positioning columns 11. Under the combined action of the first limiting groove 6 and the second limiting groove 8, the four positioning plates 12 can enclose rectangular positioning frames of different sizes, so as to adapt to flat package devices of different specifications.

[0025] First, visually estimate the size of the flat package device, adjust the rectangular positioning frame to a size slightly larger than the flat package device, then place the flat package device on the rectangular positioning frame, and then rotate the intermediate plate 2 so that the rectangular positioning frame completely matches the flat package device. Finally, tighten the locking screw 16 to lock and position the intermediate plate 2.

[0026] Similarly, it should be understood that, for the purpose of streamlining the present disclosure and facilitating the understanding of one or more of the various utility model aspects, in the above description of the exemplary embodiments of the present utility model, the various features of the present utility model are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be construed as reflecting an intention that the claimed present utility model requires more features than those expressly recited in each claim. Rather, as reflected in the following claims, the utility model aspects lie in less than all the features of the single embodiments disclosed previously. Thus, the claims following the detailed description are hereby expressly incorporated into the detailed description, where each claim itself serves as a separate embodiment of the present utility model.

[0027] Those skilled in the art can understand that the modules in the devices in the embodiments can be adaptively changed and disposed in one or more devices different from the embodiments. The modules or units or components in the embodiments can be combined into a module or unit or component, and in addition, they can be divided into multiple sub-modules or sub-units or sub-components. Except that at least some of such features and / or processes or units are mutually exclusive, any combination can be adopted to combine all the features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all the processes or units of any method or device so disclosed. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) can be replaced by an alternative feature that provides the same, equivalent, or similar purpose.

[0028] In addition, those skilled in the art can understand that although some of the embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present utility model and forms different embodiments. For example, in the following claims, any one of the claimed embodiments can be used in any combination.

[0029] It should be noted that the above embodiments are illustrative of the present invention rather than restrictive of the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices can be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0030] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A positioning mechanism for flat-packaged devices, characterized in that: It includes a base plate, an intermediate plate, a top plate and a central block. The base plate is detachably connected to the bottom of the central block, and the top plate is detachably connected to the top of the central block. A central hole is provided in the center of the intermediate plate, and the intermediate plate is movably matched with the central block through the central hole. Four first limiting grooves are evenly distributed on the intermediate plate, and guide grooves are provided on the top plate corresponding to the first limiting grooves. Second limiting grooves are provided at the bottoms of the guide grooves, and the first limiting grooves intersect with the second limiting grooves. Four movable blocks are movably arranged on the top plate. Guide blocks are provided at the bottoms of the movable blocks, and the guide blocks are slidably matched in the guide grooves. Limiting posts are provided on the guide blocks, and the limiting posts sequentially pass through the second limiting grooves and the first limiting grooves from top to bottom. A positioning plate is installed on the four movable blocks. A rectangular positioning frame is formed by the four positioning plates at the center of the top surface of the top plate. A positioning ring is detachably installed on the top surface of the top plate, and notches are provided on the side wall of the positioning ring corresponding to the movable blocks.

2. The flat package device positioning mechanism according to claim 1, wherein: The base plate, the intermediate plate and the top plate are all disc-shaped, and the central block is a cylinder.

3. The flat package device positioning mechanism according to claim 2, wherein: The first limiting groove is a long circular through groove, which extends along the radial direction of the intermediate plate.

4. The flat package device positioning mechanism according to claim 3, wherein: The included angle between the second limiting groove and the first limiting groove is 95°.

5. The flat package device positioning mechanism according to claim 4, wherein: An adjusting handle is detachably installed on the intermediate plate.

6. The flat package device positioning mechanism according to claim 5, wherein: Threaded holes communicating with the central hole are provided on the side wall of the intermediate plate, and locking screws are in threaded fit in the threaded holes.

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