CN216359444U

CN216359444U - Cell-phone center tool

Info

Publication number: CN216359444U
Application number: CN202123162633.7U
Authority: CN
Inventors: 赖淑军
Original assignee: Shandong Huagang Intelligent Technology Co ltd
Current assignee: Shandong Huagang Intelligent Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-04-22
Anticipated expiration: 2031-12-16

Abstract

The utility model provides a mobile phone middle frame jig, which solves the technical problems of high cost and low processing efficiency of the existing mobile phone middle frame jig. The jig mainly comprises a platform, supporting legs, a pressing mechanism and a positioning structure. The upper surface array of the platform is provided with at least two clamping areas, a lower die is arranged in each clamping area, and a plurality of pressing mechanisms are arranged laterally. The upper surface of the lower die is a profiling surface and is attached to the lower surface of the middle frame of the mobile phone, and the upper surface of the lower die is also provided with a vacuum adsorption area and is connected with an air exhaust device arranged outside through a pipeline. According to the utility model, by adding the lower die design and combining the vacuum adsorption and pressing mechanism design, the middle frame is clamped more stably, the processing quality is improved, and only the corresponding lower die needs to be replaced in the modification process, so that the jig cost is saved; the multi-station design is combined, the machining efficiency can be improved, and the multi-station machining device can be widely applied to the technical field of machining.

Description

Cell-phone center tool

Technical Field

The utility model relates to a jig, in particular to a jig for a middle frame of a mobile phone.

Background

The cell phone middle frame generally needs a special fixture to be fixed in the machining process. And because each manufacturer designs different, the overall arrangement is different to cell-phone internal components, leads to different middle frame structure of different batches, and this also makes the tool need constantly customize according to the middle frame model, has increased the processing cost. Meanwhile, in the process of clamping the middle frame, the problems of deformation of the middle frame, poor surface quality, low finished product yield and the like are caused by unreasonable design of a stress, support or adsorption structure of the existing jig, and the production cost is increased; and current tool is mostly the simplex position design, can only a center of clamping once, and machining efficiency is also lower, so still need further improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides the mobile phone middle frame jig which is simple in structure, low in modification cost and difficult to damage a middle frame during clamping.

Therefore, the utility model provides a mobile phone middle frame jig which mainly comprises a platform, supporting legs, a pressing mechanism and a positioning structure;

the platform is of a flat structure, and a plurality of supporting legs are arranged on the lower surface of the platform; the upper surface of the platform is provided with at least two clamping areas in an array manner;

a plurality of pressing mechanisms are arranged on the lateral side of each clamping area; a lower die is arranged on the clamping area;

the upper surface of the lower die is a profiling surface and is attached to the lower surface of the middle frame of the mobile phone, and the upper surface of the lower die is also provided with a vacuum adsorption area; an air suction hole is arranged in the vacuum adsorption area and is connected with an air suction device arranged outside through a pipeline;

and a positioning structure is arranged at the edge of the clamping area.

Preferably, the pressing mechanism comprises a first pressing mechanism; the first pressing mechanism is a corner cylinder, the cylinder body is arranged on the lower surface of the platform, and the clamping arm is positioned above the clamping area; and at least one group of corner cylinders are symmetrically arranged on two sides of each clamping area.

Preferably, the pressing mechanism comprises a second pressing mechanism; the main body of the second pressing mechanism is an air cylinder, and a cylinder body is arranged on the lower surface of the platform; a piston rod of the air cylinder is hinged with a pressing block above the platform through a through hole arranged on the platform; the platform is also provided with a connecting rod support and a movable connecting rod; one end of the movable connecting rod is hinged with the pressing block, and the other end of the movable connecting rod is hinged with the connecting rod support.

Preferably, two ends of each clamping area are provided with one second pressing mechanism.

Preferably, the lower die main body is of a flat plate structure, and cross-shaped vent grooves are arrayed in a vacuum adsorption area on the upper surface; the bottom surface of the vent groove is provided with a plurality of air suction holes; and a sealing groove is formed in the boundary of the vacuum adsorption area, and a sealing ring is installed on the sealing groove.

Preferably, a sinking platform structure is arranged on the back surface of the lower die, and a clamping cavity is formed between the sinking platform structure and the upper surface of the platform; the clamping cavity is communicated with the air exhaust hole; and the upper surface of the platform is provided with a vent hole which is respectively communicated with the clamping cavity and a pipeline of the air exhaust device.

Preferably, the back of the lower die is provided with an annular sealing groove and a sealing ring; the sinking platform structure is positioned on the inner side of the annular sealing groove.

Preferably, the positioning structure is a positioning pin and is vertically installed on the upper surface of the platform.

The utility model provides a mobile phone middle frame jig which has the following beneficial effects:

according to the utility model, by adding the lower die design and combining the vacuum adsorption and pressing mechanism design, the middle frame is clamped more stably, the processing quality is improved, and only the corresponding lower die needs to be replaced in the modification process, so that the jig cost is saved; and the processing efficiency can be improved by combining the multi-station design.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of a platform in accordance with an embodiment of the present invention;

FIG. 3 is a perspective view of a second hold-down mechanism in an embodiment of the utility model;

FIG. 4 is an isometric view of a lower mold in an embodiment of the utility model;

FIG. 5 is an oblique view of a lower mold in an embodiment of the present invention;

FIG. 6 is a rear side view of the lower mold in an embodiment of the utility model;

the labels in the figure are: 1. the device comprises a platform, 2 parts of a corner cylinder, 3 parts of a second pressing mechanism, 4 parts of a lower die, 5 parts of a positioning pin, 6 parts of supporting legs, 101 parts of a U-shaped groove, 102 parts of a clamping area, 103 parts of vent holes, 104 parts of a positioning hole, 105 parts of a mounting through hole, 106 parts of a mounting waist hole, 301 parts of a cylinder, 302 parts of a connecting rod support, 303 parts of a movable connecting rod, 304 parts of a first pressing block, 305 parts of a second pressing block, 401 parts of a vacuum adsorption area, 402 parts of a groove, 403 parts of a limiting boss, 404 parts of a sinking platform structure, 405 parts of a second sealing groove, 4011 parts of an air suction hole, 4012 parts of a vent groove, 4013 parts of a first sealing groove.

Detailed Description

The utility model is further described below in conjunction with the drawings and the specific embodiments to assist in understanding the contents of the utility model. The method used in the utility model is a conventional method if no special provisions are made; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

As shown in fig. 1, a mobile phone middle frame fixture mainly comprises a platform 1, support legs 6, a pressing mechanism and a positioning structure;

as shown in fig. 2, the platform 1 is a flat structure, and the corners of the two sides are provided with U-shaped grooves 101, and steps are provided in the grooves, so that the platform can be conveniently and fixedly connected with the i-shaped support legs 6 on the lower surface through bolts. The platform 1 is supported by legs 6 at both sides to form a work surface.

The upper surface of the platform 1 is provided with two clamping areas 102 in parallel, as shown by the dashed box in the figure. A plurality of pressing mechanisms are arranged on the lateral side of each clamping area 102; preferably, as shown in fig. 1, the pressing mechanism includes a first pressing mechanism, namely, a corner cylinder 2, the cylinder body of which is mounted on the lower surface of the platform 1; the piston rod passes through a mounting through hole 105 formed in the platform 1 and extends to the platform 1, so that the clamping arm at the tail end of the piston rod is positioned above the clamping area 102. As shown in the figure, in order to clamp stably and uniformly, two sets of corner cylinders 2 are symmetrically arranged on two sides of each clamping area 102, that is, four corner cylinders 2 are arranged laterally of each clamping area 2. Further, the pressing mechanism further comprises a second pressing mechanism 3, as shown in fig. 3, the main body of the second pressing mechanism 3 is a cylinder 301, the cylinder body is also installed on the lower surface of the platform, and the piston rod extends to the platform 1 through the installation waist hole 106 arranged on the platform and is hinged to a pressing block arranged above the platform 1. The platform 1 is also provided with a connecting rod support 302, specifically a boss with folded edges, the two folded edges are fixed on the platform 1 through bolts, and the boss is provided with a movable connecting rod 303. One end of the movable connecting rod 303 is hinged with the pressing block, and the other end is hinged with the connecting rod support 302. Correspondingly, for symmetrical force application, two second pressing mechanisms 3 are arranged at two ends of each clamping area 102, and pressing blocks at two ends are designed in a differentiated mode by considering the structural characteristics of the middle frame, as shown in fig. 3, and the pressing blocks comprise a first pressing block 304 and a second pressing block 305. The end of the first pressing block 304 is designed to be a fork-shaped sloping platform structure, and the end of the second pressing block 305 is designed to be a sloping platform structure. In the specific work, when a piston rod of the air cylinder 301 descends, the tail end of the pressing block is driven to turn upwards, the movable connecting rod 303 deflects slightly, so that the clamping position is separated, the upper part of the middle frame is left empty, and the middle frame is convenient to take; when the piston rod rises, the tail end of the pressing block is driven to turn downwards, the movable connecting rod 303 deflects slightly, and the pressing block is pressed downwards onto the middle frame so as to be pressed and fixed.

Each clamping area 102 is provided with a lower die 4 for supporting the middle frame of the mobile phone, the main body of the lower die 4 is of a flat plate structure, and the upper surface of the lower die is designed to be a profiling surface, namely the surface shape is consistent with the shape of the lower surface of the middle frame of the mobile phone and can be attached together; for this purpose, as shown in fig. 4, a groove 402 is formed on the upper surface of the lower mold 4 for avoiding the position, and a limit boss 403 is formed for fitting the cavity or square hole of the middle frame. In this embodiment, for better clamping the middle frame, two vacuum adsorption areas 401 are further disposed on the upper surface of the lower mold 4, and an air suction hole is disposed in each vacuum adsorption area 401 and connected to an air suction device disposed outside through a pipeline; preferably, as shown in fig. 5, cross-shaped vent grooves 4012 are arrayed in the vacuum adsorption area 401, and are formed by processing a plurality of parallel vertical grooves and transverse grooves to intersect. The bottom surface of the ventilating groove 4012 is provided with a plurality of pumping holes 4011, which are disposed at the cross of the ventilating groove 4012 in this embodiment. In order to ensure the suction force of the vacuum adsorption region, a first sealing groove 4013 is formed at the boundary thereof, and a sealing ring (not shown) is installed therein.

Preferably, as shown in fig. 6, in order to balance the air pressure between the pumping holes 4011, a sunken platform structure 404 is designed to be arranged on the back surface of the lower mold, and a cavity is formed on the upper surface of the platform 1, and the cavity is designed to have a size that is required to ensure that the cavity is communicated with each pumping hole 4011 in the two vacuum adsorption areas 401. Correspondingly, as shown in fig. 2, a vent hole 103 is formed in the middle of each clamping area 102, so that a passage of an air suction hole 4011, a clamping cavity and the vent hole 103 is formed, and an externally arranged air suction device is connected through a pipeline. Further, to ensure the sealing performance of the clamping cavity, an annular second sealing groove 405 is designed to be machined on the back surface of the lower die 4, and a sealing ring (not shown in the figure) is installed, so that the sinking platform structure 404 is located inside the annular sealing groove.

A positioning structure is arranged at the edge of the clamping area 102; preferably, as shown in fig. 1, the positioning structure is embodied as a plurality of positioning pins 5 arranged along the edge of the lower mold 4 and vertically installed in the positioning holes 104 on the upper surface of the platform 1, as shown in fig. 2. The end of the positioning pin 5 is higher than the upper surface of the lower die 4, and is used for positioning the lower die 4 on one hand and guiding the put-in middle frame on the other hand. In addition, in order to accurately position the lower mold 4, other types of positioning structures are designed to be disposed between the platform 1 and the lower mold 4, which is not specifically limited in this embodiment.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A mobile phone middle frame jig is characterized by comprising a platform, supporting legs, a pressing mechanism and a positioning structure;

and a positioning structure is arranged at the edge of the clamping area.

2. The mobile phone middle frame fixture according to claim 1, wherein the pressing mechanism comprises a first pressing mechanism; the first pressing mechanism is a corner cylinder, the cylinder body is arranged on the lower surface of the platform, and the clamping arm is positioned above the clamping area; and at least one group of corner cylinders are symmetrically arranged on two sides of each clamping area.

3. The mobile phone middle frame fixture according to claim 1 or 2, wherein the pressing mechanism comprises a second pressing mechanism; the main body of the second pressing mechanism is an air cylinder, and a cylinder body is arranged on the lower surface of the platform; a piston rod of the air cylinder is hinged with a pressing block above the platform through a through hole arranged on the platform; the platform is also provided with a connecting rod support and a movable connecting rod; one end of the movable connecting rod is hinged with the pressing block, and the other end of the movable connecting rod is hinged with the connecting rod support.

4. The mobile phone middle frame fixture according to claim 3, wherein two ends of each clamping area are provided with one second pressing mechanism.

5. The jig for the middle frame of the mobile phone according to claim 1, wherein the lower die body has a flat plate structure, and cross-shaped vent grooves are arrayed in the vacuum adsorption area on the upper surface; the bottom surface of the vent groove is provided with a plurality of air suction holes; and a sealing groove is formed in the boundary of the vacuum adsorption area, and a sealing ring is installed on the sealing groove.

6. The fixture for the middle frame of the mobile phone according to claim 5, wherein a sinking platform structure is arranged on the back surface of the lower die, and a clamping cavity is formed between the sinking platform structure and the upper surface of the platform; the clamping cavity is communicated with the air exhaust hole; and the upper surface of the platform is provided with a vent hole which is respectively communicated with the clamping cavity and a pipeline of the air exhaust device.

7. The mobile phone middle frame fixture as claimed in claim 6, wherein the back of the lower mold is provided with an annular sealing groove and a sealing ring; the sinking platform structure is positioned on the inner side of the annular sealing groove.

8. The fixture for middle frames of mobile phones according to claim 1, wherein the positioning structure is a positioning pin and is vertically installed on the upper surface of the platform.