A screw-locking fixture for mobile phone assembly

Abstract

This utility model relates to a screw-locking fixture for mobile phone assembly, belonging to the field of mobile phone assembly equipment. It includes a flexible protective sleeve for fitting onto the mobile phone; a positioning plate corresponding to the screw positions on the phone, with positioning holes extending through its thickness; and a base. The top of the base has a horizontal top surface with a first positioning groove matching the shape of the positioning plate for embedding the positioning plate. The bottom of the first positioning groove has a second positioning groove matching the shape of the flexible protective sleeve for embedding the flexible protective sleeve. This utility model facilitates manual identification of screw hole positions on mobile phones, thereby improving the efficiency of the screw-locking process and preventing missed screw holes.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone assembly equipment, and in particular to a screw-locking fixture for mobile phone assembly. Background Technology

[0002] The standard assembly process for mobile phones typically includes the following steps: motherboard installation into the mid-frame → assembly of modules such as camera and battery → screw tightening → installation of sub-modules such as antenna and speaker → functional testing (intermediate testing) → back cover bonding → overall device testing (final testing). In this process, the screw tightening step is crucial for ensuring the secure installation of internal components and guaranteeing the overall reliability of the device.

[0003] However, for small-batch production or assembly operations that require frequent model changes, the cost of automated equipment is too high, and the screw fastening process often relies on manual operation. Due to the compact internal structure of mobile phones, the large number of screws, and their complex distribution, manual fastening is not only time-consuming but also prone to "missed screws" caused by missing screw holes. Missed screws not only affect structural strength but may also lead to functional abnormalities, reduced drop resistance, and ultimately affect the overall product quality.

[0004] Based on the above problems, there is an urgent need for an assembly tool that can accurately indicate the position of screws and assist operators in efficiently completing the screw-on operation, thereby improving assembly efficiency and product quality. To this end, this utility model provides a screw-on fixture for mobile phone assembly, which can clearly indicate each screw-on point, reduce the difficulty of manual identification, prevent missed screws, and is suitable for flexible production needs of multiple models and small batches. Utility Model Content

[0005] Based on this, the present invention provides a screw-locking fixture for mobile phone assembly, including a flexible protective sleeve for fitting onto the mobile phone, wherein the motherboard structure of the mobile phone needs to be exposed after the flexible protective sleeve is fitted onto the mobile phone; it also includes a positioning plate, which corresponds to the position on the mobile phone where screws need to be locked, and has a positioning hole extending through it along its thickness direction; it also includes a base, the top of which forms a horizontal top surface, and the top surface has a first positioning groove with a shape matching the positioning plate, the first positioning groove being used for embedding the positioning plate, and the bottom of the first positioning groove has a second positioning groove with a shape matching the flexible protective sleeve, the second positioning groove being used for embedding the flexible protective sleeve.

[0006] Furthermore, the positioning plate is square, and one corner of the positioning plate has a rounded transition to form a guide positioning corner.

[0007] Furthermore, the flexible protective sleeve includes a square base plate, the edge of which is bent to one side to form a square frame enclosure perpendicular to the base plate, and a retaining edge is formed on the inner side of the enclosure at the end away from the base plate.

[0008] Furthermore, the second positioning groove has an installation groove on its side wall corresponding to the tail plug interface of the mobile phone, and the installation groove extends upward from the base. The tail plug connector is rotatably provided in the installation groove, and the front end of the tail plug extends into the second positioning groove. The flexible protective cover has an opening corresponding to the tail plug interface of the mobile phone to expose the tail plug interface of the mobile phone.

[0009] Furthermore, an installation shaft is fixedly installed in the installation groove, the installation shaft is arranged in the left-right direction, an installation cylinder is rotatably sleeved on the installation shaft, and the tail plug is fixedly installed on the installation cylinder.

[0010] Furthermore, the end of the mounting cylinder facing the second positioning groove is flush with the side wall of the second positioning groove.

[0011] Furthermore, a torsion spring is also fitted onto the mounting shaft, and the two torsion arms of the torsion spring are respectively fixedly connected to the mounting groove and the mounting cylinder to fix the tail plug connector. Preferably, the tail plug connector is in a horizontal state after being fixed by the torsion spring.

[0012] Furthermore, notches are provided on both the left and right side walls of the base, and the notches extend upward out of the base, and the notches are simultaneously connected to the first positioning groove and the second positioning groove.

[0013] The principle and effects of this utility model will be further explained below with reference to the above technical solution and the accompanying drawings: In this invention, the second positioning groove on the base is used for embedding and positioning a mobile phone with a flexible protective cover, and the first positioning groove is used for embedding and positioning a positioning plate. When the mobile phone and the positioning plate are embedded into the base at the same time, the positioning hole on the positioning plate will be located directly above the corresponding screw hole on the mobile phone. At this time, the positioning hole can indicate the position of the screw hole on the mobile phone, which can facilitate manual identification of the position of the screw hole on the mobile phone, thereby improving the efficiency of the screw fastening process and preventing the screw hole from being missed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the base described in an embodiment of the present utility model; Figure 2 for Figure 1 Sectional view of AA; Figure 3 This is a schematic diagram of the structure of the flexible protective sleeve described in an embodiment of the present utility model; Figure 4 for Figure 3 BB section view; Figure 5 for Figure 4 A magnified view of a portion of the image; Figure 6 This is a schematic diagram of the structure of the base with a mobile phone embedded in it, as described in an embodiment of this utility model; Figure 7 This is a cross-sectional structural diagram of the mounting cylinder described in an embodiment of the present utility model; Figure 8 This is a schematic diagram of the structure of the base with a mobile phone and a positioning plate embedded in it, as described in an embodiment of this utility model.

[0015] Figure Labels

[0016] 1-Base, 11-First positioning groove, 12-Second positioning groove, 121-Mounting groove, 122-Mounting shaft, 123-Mounting cylinder, 124-Tail plug connector, 13-Notch, 2-Positioning plate, 21-Positioning hole, 22-Guide positioning angle, 3-Flexible protective sleeve, 31-Base plate, 32-Enclosure, 33-Side guard, 4-Mobile phone. Detailed Implementation

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In this description, directional terms such as up, down, left, and right are all used in conjunction with the accompanying drawings. Figure 1 For reference: like Figure 1-8 A screw-locking fixture for mobile phone assembly includes a flexible protective sleeve 3, which is used to fit onto a mobile phone 4, wherein the motherboard structure of the mobile phone 4 needs to be exposed after the flexible protective sleeve 3 is fitted onto the mobile phone 4; it also includes a positioning plate 2, which corresponds to the position on the mobile phone 4 where screws need to be locked, and has a positioning hole 21 extending through it along its thickness direction; it also includes a base 1, the top of which forms a horizontal top surface, and the top surface has a first positioning groove 11 with a shape matching the positioning plate 2, the first positioning groove 11 being used for embedding the positioning plate 2, and the bottom of the first positioning groove 11 has a second positioning groove 12 with a shape matching the flexible protective sleeve 3, the second positioning groove 12 being used for embedding the flexible protective sleeve 3.

[0018] In this invention, a flexible protective sleeve 3 is used to cover a mobile phone 4, providing protection. The mobile phone 4 refers to a semi-finished mobile phone 4 with its camera, battery, and tail connector modules assembled and awaiting screw fastening. A second positioning groove 12 on the base 1 is used to embed the mobile phone 4 with the flexible protective sleeve 3. After the mobile phone 4 is embedded into the second positioning groove 12, its position is fixed by the second positioning groove 12. A first positioning groove 11 on the base 1 is used to embed a positioning plate 2. After the positioning plate 2 is embedded into the first positioning groove 11, its position is fixed by the first positioning groove 11. At this time, the positioning hole 21 on the positioning plate 2 is located directly above the corresponding screw hole on the mobile phone 4. The positioning hole 21 indicates the position of the screw hole on the mobile phone 4, facilitating manual identification of the screw hole position and improving the efficiency of the screw fastening process, preventing screw holes from being missed. When manually fastening screws, an electric screwdriver is inserted through the positioning hole 21 to fasten the corresponding screw.

[0019] In one embodiment, the positioning plate 2 is square, and one corner of the positioning plate 2 is rounded to form a guide positioning angle 22.

[0020] In this embodiment, during the process of embedding the positioning plate 2 into the first positioning groove 11, the rounded corner structure of the positioning plate 2 can guide the assembly direction and ensure the uniqueness of the embedding posture, thereby achieving the foolproof function and effectively avoiding the incorrect installation of the positioning plate 2 in the opposite direction.

[0021] In one embodiment, the flexible protective sleeve 3 includes a square base plate 31, the edge of which is bent to one side to form a square frame enclosure 32 perpendicular to the base plate 31, and a retaining edge 33 is formed on the inner side of the end of the enclosure 32 away from the base plate 31.

[0022] In this embodiment, the flexible protective sleeve 3 can be made of flexible materials, such as silicone or TPU, thus possessing a certain degree of softness and providing good protection for the mobile phone 4. Simultaneously, the flexibility of the protective sleeve 3 ensures that the mobile phone 4, with the sleeve 3 on, can be smoothly embedded into the second positioning groove 12. Furthermore, the flexible protective sleeve 3 can be placed on the mobile phone 4 during the pre-screw fastening process. This allows the flexible protective sleeve 3 to protect the mobile phone 4 throughout the pre-screw fastening process and during the transfer between processes, rather than just when the mobile phone 4 is embedded in the second positioning groove 12.

[0023] In this embodiment, when the mobile phone 4 is put into the flexible protective case 3, the side of the mobile phone 4 with the screen is attached to the bottom plate 31 of the flexible protective case 3. At this time, the middle frame of the mobile phone 4 is attached to the inner side wall of the enclosure 32, and the edge 33 on the flexible protective case 3 is pressed against the top of the middle frame of the mobile phone 4, so that the motherboard on the back of the mobile phone 4 can be exposed by the protective case.

[0024] In one embodiment, the side wall of the second positioning groove 12 is provided with a mounting groove 121 corresponding to the tail plug interface of the mobile phone 4, and the mounting groove 121 extends upward from the base 1. The tail plug connector 124 is rotatably provided in the mounting groove 121, and the front end of the tail plug extends into the second positioning groove 12. The flexible protective cover 3 is provided with a window corresponding to the tail plug interface of the mobile phone 4 to expose the tail plug interface of the mobile phone 4.

[0025] In this embodiment, the tail plug connector 124 is used to be inserted into the tail plug interface of the mobile phone 4 and connected to the tail plug interface of the mobile phone 4.

[0026] In this embodiment, since the tail plug connector 124 extends into the second positioning groove 12, it will obstruct the insertion of the phone 4 during the process of embedding the phone 4 into the second positioning groove 12. Only after the tail plug connector 124 is inserted into the tail plug interface of the phone 4 can the phone 4 be successfully embedded into the second positioning groove 12. Therefore, the presence of the tail plug connector 124 can prevent the phone 4 from being inserted into the second positioning groove 12 in the wrong direction, thus achieving a foolproof function. In addition, in order for the tail plug connector 124 to be inserted into the tail plug interface of the phone 4, the window on the flexible protective case 3 must expose the tail plug interface of the phone 4. In this way, during the screw fastening operation, it can be found whether the flexible protective case 3 is put on backwards.

[0027] In one embodiment, an installation shaft 122 is fixedly disposed in the installation groove 121. The installation shaft 122 is disposed in the left-right direction. An installation cylinder 123 is rotatably sleeved on the installation shaft 122. The tail plug 124 is fixedly disposed on the installation cylinder 123.

[0028] In this embodiment, the mounting cylinder 123 is rotatably sleeved on the mounting shaft 122. The up-and-down rotation of the tail connector 124 can be achieved by rotating the mounting cylinder 123 relative to the mounting shaft 122. The mounting cylinder 123 can be rotatably mounted on the mounting shaft 122 by means of a bearing structure, or it can be rotatably sleeved on the mounting shaft 122 by means of a clearance fit.

[0029] In one embodiment, the end of the mounting cylinder 123 facing the second positioning groove 12 is flush with the side wall of the second positioning groove 12.

[0030] In this embodiment, the end of the mounting cylinder 123 facing the second positioning groove 12 is flush with the side wall of the second positioning groove 12. Therefore, during the process of inserting the tail plug 124 into the tail plug interface, the side wall of the mounting cylinder 123 can also play a positioning role. By abutting against the flexible protective sleeve 3, the depth of the tail plug 124 inserted into the tail plug interface can be controlled, which can avoid the tail plug 124 being over-inserted and damaging the tail plug interface.

[0031] In one embodiment, a torsion spring is also fitted onto the mounting shaft 122. The two torsion arms of the torsion spring are fixedly connected to the mounting groove 121 and the mounting cylinder 123, respectively, to fix the tail plug 124. Preferably, the tail plug 124 is in a horizontal state after being fixed by the torsion spring.

[0032] In this embodiment, using a torsion spring to fix the tail plug structure ensures that the tail plug connector 124 always extends into the second positioning groove 12 when not subjected to external force, thus maintaining its foolproof function. During the process of inserting the phone 4 into the second positioning groove 12, when the tail plug connector 124 needs to be rotated, the torsion spring will be compressed or stretched, preventing obstruction of the phone 4's insertion.

[0033] In one embodiment, notches 13 are provided on both the left and right sidewalls of the base 1. The notches 13 extend upward out of the base 1 and are connected to both the first positioning groove 11 and the second positioning groove 12.

[0034] In this embodiment, the notch 13 on the side wall of the base 1 is used to expose the positioning plate 2 and the mobile phone 4 in the first positioning groove 11 and the second positioning groove 12, so that the positioning plate 2 and the mobile phone 4 can be placed and removed conveniently.

[0035] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A screw-locking fixture for assembling mobile phones, characterized in that, The device includes a flexible protective case for fitting onto a mobile phone; a positioning plate corresponding to the location on the phone where screws are needed, and a positioning hole extending through it along its thickness; and a base with a horizontal top surface at its top, a first positioning groove matching the shape of the positioning plate for embedding the positioning plate, and a second positioning groove matching the shape of the flexible protective case at its bottom for embedding the flexible protective case.

2. The screw locking jig for assembling a mobile phone according to claim 1, wherein The positioning plate is square, and one corner of the positioning plate has a rounded transition to form a guide positioning corner.

3. The screw locking jig for assembling a mobile phone according to claim 1, wherein The flexible protective sleeve includes a square base plate, the edge of which is bent to one side to form a square frame enclosure perpendicular to the base plate, and a retaining edge is formed on the inner side of the enclosure at the end away from the base plate.

4. The screw locking jig for assembling a mobile phone according to any one of claims 1 to 3, wherein The second positioning groove has an installation groove on its side wall corresponding to the tail plug interface of the mobile phone, and the installation groove extends upward from the base. The tail plug connector is rotatably installed in the installation groove, and the front end of the tail plug extends into the second positioning groove. The flexible protective cover has an opening corresponding to the tail plug interface of the mobile phone to expose the tail plug interface of the mobile phone.

5. The screw locking jig for assembling a mobile phone according to claim 4, wherein An installation shaft is fixedly installed in the installation groove. The installation shaft is arranged in the left-right direction. An installation cylinder is rotatably sleeved on the installation shaft. The tail plug is fixedly installed on the installation cylinder.

6. The screw locking jig for assembling a mobile phone according to claim 5, wherein The end of the mounting cylinder facing the second positioning groove is flush with the side wall of the second positioning groove.

7. The screw locking jig for assembling a mobile phone according to claim 6, wherein A torsion spring is also fitted on the mounting shaft. The two torsion arms of the torsion spring are fixedly connected to the mounting groove and the mounting cylinder, respectively, to fix the tail plug connector.

8. The screw locking jig for assembling a mobile phone according to claim 1, wherein The base has notches on both the left and right sidewalls, which extend upward out of the base and connect to both the first positioning groove and the second positioning groove.

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