CN108788666B

CN108788666B - Anti-reverse jig and method for detecting whether protective cover is reversely mounted

Info

Publication number: CN108788666B
Application number: CN201810633529.5A
Authority: CN
Inventors: 敖建斌; 程雄斌; 王许澳; 陈永平; 李许
Original assignee: Guangdong Evenwin Precision Technology Co Ltd
Current assignee: Guangdong Evenwin Precision Technology Co Ltd
Priority date: 2018-06-20
Filing date: 2018-06-20
Publication date: 2020-04-17
Anticipated expiration: 2038-06-20
Also published as: CN108788666A

Abstract

The invention relates to an anti-reverse jig and a method for detecting whether a protective cover is reversely mounted. An anti-reverse jig comprises a base and a detection device, wherein the base is provided with an installation position for fixing a middle frame; detection device one end with the base cooperation, the other end is used for detecting whether the safety cover on the center assembles correctly, works as when the safety cover assembles correctly, detection device's being used for detects whether the safety cover on the center adorns correct the other end with a straight flange of safety cover aligns. The condition of the anti-safety cover of dress takes place during can preventing manual assembly, great reduction the defective rate.

Description

Anti-reverse jig and method for detecting whether protective cover is reversely mounted

Technical Field

The invention relates to the technical field of electronic equipment, in particular to an anti-reverse jig and a method for detecting whether a protective cover is reversely mounted.

Background

At present, the functions of electronic devices are increasing, for example, mobile phones or tablet computers are integrating the functions of cameras.

In order to improve the effect of the photo, light is supplemented, and the light is usually supplemented by a flash lamp. The flash lamp needs to be protected by a protective cover, and the protective cover is required to be installed reversely due to the special structure of the protective cover, such as coating on the surface of the protective cover.

At present, the protective cover is usually assembled manually, and the front side and the back side of the protective cover are difficult to identify, so that the protective cover is easy to misjudge by human eyes, the protective cover is reversely assembled, and the defective rate is improved.

Disclosure of Invention

Therefore, it is necessary to provide an anti-reverse jig and a method for detecting whether a protection cover is reversely mounted, so as to prevent occurrence of reverse mounting of the protection cover during manual assembly and greatly reduce the reject ratio.

An anti-reverse jig comprising:

the base is provided with a mounting position for fixing the middle frame; and

one end of the detection device is matched with the base, the other end of the detection device is used for detecting whether the protective cover on the middle frame is assembled correctly, and when the protective cover is assembled correctly, the detection device is used for detecting whether the protective cover on the middle frame is assembled correctly or not, and the other end of the protective cover is aligned with a straight edge of the protective cover.

In one embodiment, the detection device comprises a detection member rotatably connected to the base, and a free end of the detection member comprises a detection edge for aligning with one straight edge of the protective cover.

In one embodiment, the free end of the detection member comprises a detection edge, and when the protective cover is assembled correctly, the detection edge can be jointed with one straight edge of the protective cover; when the protective cover is reversely mounted, the free end presses on the protective cover.

In one embodiment, a groove body is arranged on the base, and one end, matched with the base, of the detection device is embedded into the groove body.

In one embodiment, a sliding groove is formed in the base, and one end of the detection device is connected to the sliding groove in a sliding mode along the horizontal direction.

A method for detecting whether a protective cover is reversely mounted utilizes the reverse prevention jig, and comprises the following steps:

fixing the middle frame on the mounting position of the anti-reverse jig;

and observing one end of the detection device, which is used for detecting whether the protective cover on the middle frame is correctly arranged, and aligning one straight edge of the protective cover.

In one embodiment, the detection device comprises a detection piece rotatably connected to the base, and the end for detecting whether the protection cover on the middle frame is correctly installed comprises a detection edge of a free end of the detection piece.

In one embodiment, the step of the observation and detection device for detecting whether the correct end of the protective cover on the middle frame is aligned with one straight edge of the protective cover comprises:

when the protective cover is correctly assembled, the detection edge can be attached to one straight edge of the protective cover;

when the protective cover is reversely mounted, the free end presses on the protective cover.

In one embodiment, a groove is arranged on the base, and in the step of detecting whether the correct end of the protective cover on the middle frame is aligned with one straight edge of the protective cover: when the protective cover is assembled correctly, one end of the detection device, which is matched with the base, is embedded into the groove body.

In one embodiment, a sliding groove is formed in the base, and before the step of observing whether the correct end of the protection cover on the middle frame is aligned with one straight edge of the protection cover, the step of connecting one end of the detection device to the sliding groove in a sliding manner along a horizontal direction is further included.

By adopting the technical scheme, through the anti-reverse jig, whether the assembly of the protective cover on the middle frame is correct can be detected more visually, the condition that the protective cover is reversely assembled during manual assembly can be prevented, and the reject ratio is greatly reduced.

Drawings

FIG. 1 is a schematic front view of a protective cover according to an embodiment of the invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the back side of the protective cover shown in FIG. 1;

FIG. 4 is a schematic view of two protective covers stacked with their front surfaces facing upwards and their back surfaces facing upwards according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a middle frame according to an embodiment of the present invention;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a schematic structural diagram of an anti-reverse fixture according to an embodiment of the present invention;

FIG. 8 is an enlarged view at C of FIG. 7;

FIG. 9 is a schematic diagram of an anti-reverse fixture detection protective cover according to an embodiment of the present invention;

FIG. 10 is a schematic view illustrating the detecting device and the detecting status of the protecting cover when the protecting cover is correctly installed according to an embodiment of the present invention;

fig. 11 is a schematic view illustrating a detection device and a detection state of a protection cover when the protection cover is reversely mounted according to an embodiment of the present invention.

Reference numerals: 100. an arc-shaped edge; 110. a first straight side; 120. a second straight side; 130. a groove; 200. assembling a groove; 210. an opening; 220. an indicator mark; 230. a through hole; 240. a body; 250. a carrier; 300. a base; 310. a detection device; 311. a fixed seat; 312. a detection member; 313. a free end; 314. detecting edges; 320. an installation position; 330. and (6) accommodating the tank.

Detailed Description

To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

The invention provides an anti-reverse jig and a method for detecting whether a protection cover is reversely mounted, which can prevent reverse mounting when the protection cover is manually assembled on a mobile phone, thereby greatly reducing the reject ratio.

A protective cover is made of transparent material. The protective cover may be used, for example, to protect a flash of a camera. In order to improve the wear resistance of the protective cover, a wear-resistant layer can be arranged on the outer side of the protective cover; in order to make the protective cover oil stain resistant, an oil-repellent layer can be arranged on the outer side of the protective cover. Different coatings may also be provided as desired. This requires that the protective cover be mounted with the side provided with the coating facing outwards so that the coatings can perform their function. Conventional boots are generally of a regular or symmetrical configuration, such as circular, oval, etc., and it is difficult to distinguish between the inside and outside of the boot. The invention provides a protective cover with an asymmetric shape, which can distinguish the front side from the back side due to the posture difference generated when the protective cover is installed.

Specifically, in one embodiment, referring to fig. 1, a shield includes an arc-shaped edge 100, a first straight edge 110, and a second straight edge 120, wherein the arc-shaped edge 100 is a portion of a complete circle, and a distance L4 from a center of the arc-shaped edge 100 to the first straight edge 110 is greater than a distance L3 from the center of the arc-shaped edge 100 to the second straight edge 120. Thus, the lengths of the first straight side 110 and the second straight side 120 are different, i.e. the length of the first straight side 110 is smaller than the length of the second straight side 120. In actual manufacturing, the difference between the lengths of the first straight side 110 and the second straight side 120 can be made larger, so that the eyes can directly distinguish. Certainly, in order to make the protective cover more beautiful, the length difference between the first straight edge 110 and the second straight edge 120 can be made to be not easily recognized by eyes, for example, the size of L1 is 5.8mm in fig. 1, and the size of L2 is 6.1mm, and then the protective cover is matched with the anti-reflection jig or the middle frame provided by the invention to detect whether the protective cover is correctly installed. Referring to fig. 4, fig. 4 is a schematic diagram of two protective covers stacked in postures with their fronts facing upward and their backs facing upward, respectively, and it can be seen from the diagram that the arc portions of the two protective covers can be approximately overlapped, and the straight edge portions of the two protective covers cannot be overlapped, that is, the postures of the two protective covers are different. In this embodiment, as shown in fig. 1, the left side portion is a first straight edge 110, and the upper side portion is a second straight edge 120; in other embodiments, the left portion may also be the second straight edge 120, and the upper portion may also be the first straight edge 110.

Referring to fig. 2, fig. 2 is a sectional view taken along a-a in fig. 1. In the posture shown in fig. 2, the left side of the protective cover is the front side and the right side is the back side. Referring to fig. 3, fig. 3 is a front view of the rear surface of the protective cover shown in fig. 1, the rear surface of the protective cover being provided with an arc-shaped groove 130, the arc-shaped groove 130 being for mounting toward the flashlight. The arcuate grooves 130 are annular rings and the flash is adapted to be disposed within the central annular ring. The arc-shaped groove 130 is used for reflecting the light of the flash lamp and increasing the flash area. The front of safety cover is the matte, can make light produce diffuse reflection, makes light more gentle fit, and is more even, reduces the central bright spot phenomenon of light.

Furthermore, the first straight edge 110 is perpendicular to the second straight edge 120, so that the appearance of the protective cover is more attractive on one hand, and the protective cover is convenient to match with the anti-reflection jig of the invention on the other hand.

The middle frame is similar to a frame and is commonly applied to the field of mobile terminals such as current mobile phones. A middle frame, referring to fig. 5 and 6, comprises a frame-shaped body 240, a carrier 250 is arranged on the inner wall of the body 240, an assembly groove 200 for installing a protective cover is arranged on the carrier 250, a through hole 230 is arranged in the middle of the assembly groove 200, and the through hole 230 is used for allowing light of a flash lamp to pass through. In one embodiment, the shape of the assembly groove 200 can be made to be the same as that of the protective cover, and the protective cover with an asymmetric shape is matched, so that the front side and the back side of the protective cover can be directly distinguished during assembly, namely, when the protective cover is assembled correctly, the protective cover can be just placed in the assembly groove 200, and when the protective cover is reversely assembled, the protective cover cannot be just accommodated in the assembly groove 200. Therefore, whether the protective cover is assembled correctly can be visually and conveniently detected, and the working efficiency is greatly improved. It is easy to think that the technical means of the present embodiment requires high machining accuracy of the fitting groove 200 and high machining cost of the center frame.

In one embodiment, with continued reference to fig. 5 and 6, the outer shape of the assembly groove 200 is slightly larger than that of the protection cover, so that the protection cover can be quickly and conveniently placed in the assembly groove 200, the machining precision of the assembly groove 200 is not strictly controlled, and the machining cost of the middle frame is reduced. The side wall of the mounting groove 200 is provided with an opening 210 for exposing the second straight edge 120 of the boot, and the middle frame is further provided with an indication mark 220, wherein when the boot is correctly mounted in the mounting groove 200, the indication mark 220 is aligned with the second straight edge 120 of the boot. In this embodiment, the indication mark 220 is a line disposed on the middle frame, and in other embodiments, the indication mark 220 may be, for example, an edge of the opening 210 or one sidewall of another slot.

In other embodiments, the assembly groove 200 may further include an opening 210 disposed on a sidewall of the assembly groove 200 for exposing the first straight edge 110, and may also include an opening 210 disposed on a sidewall of the assembly groove 200 for simultaneously exposing the first straight edge 110 and the second straight edge 120; the indicator 220 may be aligned with the first straight edge 110 or with the first straight edge 110 and the second straight edge 120, respectively, when the boot is properly mounted in the mounting slot 200.

An anti-reverse jig is used for detecting whether a protective cover installed on a middle frame is reversely installed. Referring to fig. 7, the anti-reverse jig includes a base 300 and a detection device 310. The base 300 is provided with an installation position 320 for fixing the middle frame, and the installation position 320 may be groove-shaped or may have a plurality of positioning columns for positioning the middle frame. The detecting device 310 may be fixedly installed on the base 300, for example, may be rotatably installed on the base 300, or may be slidably installed on the base 300; the detecting device 310 may also be detachably mounted on the base 300, for example, during detection, the detecting device 310 is mounted on the base 300 by a snap-fit manner, and after the detection is finished, the detecting device 310 is removed from the base 300. One end of the detection device 310 is matched with the base 300, the other end of the detection device is used for detecting whether the protective cover on the middle frame is correctly assembled, and when the protective cover is correctly assembled, the detection device is used for detecting whether the protective cover on the middle frame is correctly assembled, and the other end of the protective cover is aligned with one straight edge of the protective cover.

In one embodiment, referring to fig. 7, an anti-reverse fixture comprises a base 300 and a detection device 310, wherein a groove-shaped mounting position 320 for fixing a middle frame is arranged on the base 300. Referring to fig. 8, the detecting device 310 includes a fixing base 311 and a detecting member 312. The fixing base 311 is fixedly installed on the base 300, and the detecting member 312 is rotatably connected to the fixing base 311. When the middle frame is installed, the detection piece 312 is rotated relative to the fixed seat 311, then the middle frame is fixed at the installation position 320, and then the detection piece 312 is rotated reversely to perform detection. The end of the detecting member 312, which is away from the connection end with the fixing base 311, is a free end 313, and the free end 313 includes a detecting edge 314 for aligning with one straight edge of the protecting cover, for example, in this embodiment, the detecting edge 314 is specifically aligned with the second straight edge 120. Referring to fig. 9, fig. 9 is a schematic diagram of the detecting element 312 detecting whether the protection cover is reversely mounted, and the view angle in the figure is a top view angle, in which the circle centers of the arc-shaped sides 100 of the protection covers on the left side and the right side are on the same horizontal line. The left-hand boot is the boot that fits correctly on the center frame, and as can be seen in FIG. 9, the detection edge 314 is aligned with the second straight edge 120; the right protective cover is a reverse protective cover, and as can be seen from fig. 9, the detecting member 312 presses on the protective cover, that is, the detecting member 312 interferes with the protective cover.

In one embodiment, with continued reference to fig. 7 and 8, the middle frame is provided with a receiving groove 330, and when the protective cover is properly assembled, the free end 313 of the detecting member 312 can be inserted into the receiving groove 330. Referring to fig. 10, when the free end 313 of the detecting element 312 is inserted into the receiving groove 330, the detecting edge 314 can be attached to one straight edge of the protecting cover (specifically, the second straight edge 120 in this embodiment), and the detecting element 312 is in a horizontal state. Referring to fig. 11, when the protective cover is reversely mounted, the free end 313 presses on the protective cover, and the detecting member 312 is in a tilted-up state. The operator can also determine whether the protective cover is properly assembled based on the level or tilt-up of the detecting member 312.

The mating of the base 300 and the detection device 310 may also be performed by:

in one embodiment, the anti-reverse fixture includes a base 300 and a detection device 310. Be provided with the cell body on the base 300, this cell body can be the upper end uncovered, and detection device 310 and base 300 separable installation, in the testing process, it is internal that detection device 310 and base 300 complex one end embedded groove, detect and finish, and detection device 310 can follow and take out in the cell body.

In one embodiment, the anti-reverse fixture includes a base 300 and a detection device 310. The base 300 is provided with a sliding groove, the detecting device 310 is slidably mounted in the sliding groove, and the detecting device 310 is inseparable from the base 300. During testing, the testing device 310 slides along the chute to move closer to or further away from the protective cover. It is easily understood that in the present embodiment, the detecting member 312 in the detecting device 310 is slid in the horizontal direction until the detecting edge 314 of the detecting member 312 is aligned with one of the straight edges.

A method for detecting whether a protective cover is reversely arranged comprises the following steps:

fixing the middle frame on the mounting position 320 of the anti-reverse jig;

the end of the inspection device 310 for inspecting whether the boot on the middle frame is properly attached is aligned with a straight edge of the boot.

In one embodiment, the detecting device 310 comprises a detecting member 312 rotatably connected to the base 300, and the end for detecting whether the protecting cover on the middle frame is correctly installed comprises a detecting edge 314 of a free end 313 of the detecting member 312.

In one embodiment, the step of the observation detection device 310 for detecting whether the correct end of the protective cover on the middle frame is aligned with one straight edge of the protective cover comprises:

when the protective cover is correctly assembled, the detection edge 314 can be attached to one straight edge of the protective cover;

when the protective cover is inverted, the free end 313 presses against the protective cover.

In one embodiment, a groove is provided on the base 300, and in the step of detecting whether the correct end of the protection cover on the middle frame is aligned with one straight edge of the protection cover: when the protective cover is properly assembled, the end of the detection device 310 that mates with the base 300 is inserted into the slot.

In one embodiment, a sliding slot is disposed on the base 300, and before the step of observing whether the correct end of the detecting device 310 for detecting whether the protecting cover on the middle frame is installed is aligned with one straight edge of the protecting cover, the method further includes a step of slidably connecting one end of the detecting device 310 to the sliding slot along a horizontal direction.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An anti-reverse jig is used for detecting whether a protective cover of a flash lamp is reversely arranged on an electronic product or not, and is characterized in that the protective cover comprises an arc-shaped edge (100), a first straight edge (110) and a second straight edge (120), the arc-shaped edge (100) is a part of a complete circle, and the distance from the circle center of the arc-shaped edge (100) to the first straight edge (110) is greater than the distance from the circle center to the second straight edge (120);

prevent reverse tool includes:

the base (300) is provided with a mounting position (320) for fixing the middle frame; and

the detection device (310) is matched with the base (300) at one end, the other end of the detection device is used for detecting whether the protective cover on the middle frame is correctly assembled, and when the protective cover is correctly assembled, the other end of the detection device, which is used for detecting whether the protective cover on the middle frame is correctly assembled, is aligned with one straight edge of the protective cover;

the detection device (310) comprises a detection piece (312) which is rotatably connected with the base (300), and a free end (313) of the detection piece (312) comprises a detection edge (314) which is used for aligning with one straight edge of the protective cover; the free end (313) of the detection member (312) comprises a detection edge (314), and when the protective cover is assembled correctly, the detection edge (314) can be jointed with one straight edge of the protective cover; when the protective cover is inverted, the free end (313) presses against the protective cover.

2. The anti-reverse jig according to claim 1, characterized in that a groove body is arranged on the base (300).

3. The jig of claim 2, wherein one end of the detection device (310) engaged with the base (300) is embedded in the groove.

4. The anti-reverse jig according to claim 1, characterized in that a sliding groove is arranged on the base (300).

5. The jig of claim 4, wherein one end of the detection device (310) is connected to the chute in a sliding manner along a horizontal direction.

6. A method for detecting whether a protective cover of a flash lamp is reversely arranged on an electronic product or not is characterized in that the reverse prevention jig is used, and the method comprises the following steps:

fixing the middle frame at an installation position (320) of an anti-reverse jig;

observe whether detection device (310) be used for the detection whether the correct one end of dress with a straight flange of safety cover on the center aligns, detection device (310) including rotate connect in detection piece (312) of base (300), be used for detecting whether the correct one end of dress is contained to the safety cover on the center detection piece (312) the detection limit (314) of free end (313), when the safety cover assembly is correct, detection limit (314) can with a straight flange laminating of safety cover, when the safety cover dress was reversed, free end (313) are pressed on the safety cover.

7. The method for detecting whether the protection cover is reversely arranged according to claim 6, wherein a groove is arranged on the base (300).

8. The method of claim 7, wherein the step of detecting whether the correct end of the boot on the center frame is aligned with a straight edge of the boot comprises: when the protective cover is correctly assembled, one end of the detection device (310) matched with the base (300) is embedded into the groove body.

9. Method for detecting whether a protective cover is inverted according to claim 6, characterized in that a sliding groove is provided on the base (300).

10. The method of claim 9, wherein said step of observing whether said detecting means (310) is used to detect whether said correct end of said boot on said center frame is aligned with a straight edge of said boot is preceded by the step of slidably attaching an end of said detecting means (310) to said chute in a horizontal direction.