Mobile phone hinge snap ring assembly jig and application method thereof

Abstract

The application relates to a mobile phone hinge clasp assembling jig and an application method thereof, which comprises a base module, the base module is provided with a positioning table and a support, clamping modules and flat pushing modules are arranged on the two sides of the positioning table on the base module, a pressing module is arranged on the support and located directly above the positioning table, the clamping module comprises a clamping unit and a first guide unit, the flat pushing module comprises a flat pushing block and a second guide unit, the pressing module comprises a pressing block for fixing a mobile phone hinge clasp and a third guide unit for guiding the movement of the pressing block towards the positioning table, the overall structure is reasonable and compact, all the parts involved are positioned by equipment, precise guide mechanisms are designed in the whole pressing process, batch feeding operation can be realized for the core clasp part, the machining precision can be guaranteed, the product yield and consistency can be ensured, and the machining efficiency of the clasp assembling process is improved.

Description

Technical Field

[0001] This invention relates to the field of mobile phone hinge clasp assembly technology, and more specifically, to a mobile phone hinge clasp assembly fixture and its application method. Background Technology

[0002] Foldable phones require a hinge at the folding point to enable unfolding and folding functions. The hinge consists of many tiny parts. The installation of the retaining rings and retaining ring washers is currently done manually. Due to the small size of these parts, precise assembly by operators is difficult, frequently resulting in misalignment and part deformation, leading to low production efficiency. Therefore, it is necessary to develop a mobile phone hinge assembly fixture to solve the problem of retaining ring and retaining ring washer installation in automated mobile phone hinge assembly production, thereby improving production efficiency and assembly yield. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a mobile phone hinge retaining ring assembly fixture, and to provide a method for applying the mobile phone hinge retaining ring assembly fixture, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is: A mobile phone hinge retainer assembly fixture is constructed, comprising a base module, wherein a positioning platform and a bracket are provided on the base module; The base module is provided with clamping modules and flat pushing modules on both sides of the positioning platform; the bracket is provided with a pressing module located directly above the positioning platform. The clamping module includes a clamping unit for clamping the phone hinge body and a first guiding unit for guiding the clamping unit to move toward the positioning platform. The clamping unit is provided with a locking unit that interacts with the base module to lock the position. The push module includes a push block with a fixed retaining ring washer and a second guide unit for guiding the push block to move toward the positioning platform; The pressing module includes a pressing block that fixes the phone hinge retainer and a third guiding unit that guides the pressing block to move toward the positioning platform.

[0005] The mobile phone hinge retaining ring assembly fixture of the present invention includes a clamping unit comprising a first clamping plate and a second clamping plate arranged vertically. The first clamping plate and the second clamping plate are detachably connected. Positioning grooves for positioning the mobile phone hinge body are provided on opposite side surfaces of the first clamping plate and the second clamping plate. The two positioning grooves are combined to form a clamping groove for clamping the mobile phone hinge body.

[0006] The mobile phone hinge retainer assembly fixture of the present invention includes a clamping unit that further includes a sliding table, a second clamping plate that is fixed on the sliding table, side plates that are provided on both sides of the sliding table, and a locking unit that includes two locking nuts that are threaded onto the side plates, with the lower ends of the locking nuts facing the base module.

[0007] The mobile phone hinge retainer assembly fixture of the present invention includes a side plate in the shape of an inverted L, wherein the outer surface of the longitudinal edge is fixedly connected to the side surface of the sliding table; the clamping nut is threaded through the transverse edge of the side plate; the longitudinal edges of the two side plates and the upper surface of the sliding table enclose and form a mounting groove for mounting the second clamping plate.

[0008] The mobile phone hinge retainer assembly fixture of the present invention includes a positioning plate on the upper surface of the positioning platform, and arc-shaped positioning grooves corresponding to the two axes of the mobile phone hinge body on both sides of the positioning plate; and an arc-shaped guide protrusion on the side surface of the positioning plate facing the clamping module.

[0009] The mobile phone hinge retaining ring assembly fixture of the present invention includes two contour positioning grooves for positioning retaining ring gaskets on the side surface of the push block facing the positioning platform. The bottom of the contour positioning groove is provided with an opening for the shaft of the mobile phone hinge body to pass through. The bottom of the contour positioning groove is provided with a plurality of first adsorption holes for adsorbing and fixing the retaining ring gaskets around the opening. The upper surface of the positioning platform is provided with a second adsorption hole for adsorbing and detecting the mobile phone hinge body and a third adsorption hole for adsorbing and detecting the retaining ring gaskets.

[0010] The mobile phone hinge retaining ring assembly fixture of the present invention includes a third guide unit comprising a longitudinal guide plate fixedly connected to a bracket, a guide rail provided on the guide plate, and a lower pressing block comprising a transverse pressing plate longitudinally slidably disposed on the guide rail. The third guide unit also includes two guide rods fixedly connected to the bracket, and two guide sleeves corresponding to the guide rods are provided on the transverse pressure plate; The two guide rods and the guide rail are arranged in an isosceles triangle.

[0011] The mobile phone hinge retaining ring assembly fixture of the present invention includes a lower pressing block that further includes a longitudinal pressing plate fixed on the transverse pressing plate. The lower end of the longitudinal pressing plate is provided with two pressing grooves that correspond to the two axes of the mobile phone hinge body and accommodate the mobile phone hinge retaining ring. The lower ends of the two guide rods are connected by a connecting rod, and the upper surface of the connecting rod is provided with two positioning strips for positioning and distributing the mobile phone hinge retaining rings; the positioning strips correspond one-to-one with the pressing grooves.

[0012] The mobile phone hinge retaining ring assembly fixture of the present invention comprises a positioning strip consisting of a first transverse strip and a second transverse strip arranged vertically and connected together. The first transverse strip has a semi-cylindrical cross-section with its transverse edge facing downwards, and the second transverse strip has an isosceles trapezoidal cross-section with its upper edge integrally formed with the semi-cylindrical transverse edge. The holding groove includes a receiving hole corresponding to the shaft of the mobile phone hinge body and a retaining ring positioning hole disposed at one end of the receiving hole facing the clamping module. The lower end of the longitudinal pressure plate is provided with two strong magnets respectively located directly above the holding groove. When the retaining ring positioning hole is completely aligned with the positioning strip, the strong magnet pulls the mobile phone hinge retaining ring on the nearest positioning strip into the retaining ring positioning hole. When the strong magnet is completely aligned with the positioning strip, the strong magnet attracts the remaining mobile phone hinge retaining ring on the positioning strip and moves the remaining mobile phone hinge retaining ring toward the longitudinal pressure plate.

[0013] A method for applying a mobile phone hinge retaining ring assembly fixture, wherein the method includes the following steps: The two rows of mobile phone hinge rings are loaded onto the two positioning strips and stopped by the longitudinal pressure plate to prevent them from falling off; The phone hinge body is loaded onto the clamping module, where it is clamped by the first clamping plate and the second clamping plate. Guided by the first guide unit, the clamping module is moved to the axis on the phone hinge body, which passes through the arc-shaped positioning groove. The second suction hole attracts the phone hinge body for secondary fixation and to check whether it is in place. The retaining ring washer is fed onto the contour positioning groove on the flat push module and is fixed by adsorption through the first adsorption hole; the flat push module is moved under the guidance of the second guide unit to the shaft on the mobile phone hinge body through the opening; the retaining ring washer is adsorbed by the third adsorption hole for fixation and to check whether it is in place, the first adsorption hole releases adsorption, and the flat push module is reset. Guided by the third guide unit, the longitudinal pressure plate moves downward. When the clasp positioning hole is perfectly aligned with the positioning strip, the strong magnet pulls the phone hinge clasp on the nearest positioning strip into the clasp positioning hole. The longitudinal pressure plate continues to move downward. When the strong magnet is perfectly aligned with the positioning strip, the strong magnet attracts the remaining phone hinge clasps on the positioning strip and moves them toward the longitudinal pressure plate. The longitudinal pressure plate continues to move downward, engaging the phone hinge clasps into the annular groove on the shaft of the phone hinge body, completing the engagement assembly.

[0014] The beneficial effects of this invention are as follows: In application, two rows of mobile phone hinge retaining rings are loaded onto two positioning strips and prevented from falling off by longitudinal pressure plates; the mobile phone hinge body is loaded onto the clamping module and clamped by the first clamping plate and the second clamping plate; the clamping module is moved under the guidance of the first guide unit to the shaft on the mobile phone hinge body through the arc-shaped positioning groove; the second suction hole adsorbs the mobile phone hinge body for secondary fixation and to check whether it is in place; the retaining ring gasket is loaded onto the contour positioning groove on the flat push module and is adsorbed and fixed by the first suction hole; the flat push module is moved under the guidance of the second guide unit to the shaft on the mobile phone hinge body through the opening; the third suction hole adsorbs the retaining ring gasket for fixation and to check whether it is in place; the first suction hole releases the adsorption, and the flat push module resets; in the third guide unit... Under the guidance of the magnet, the longitudinal pressure plate moves downward. When the clasp positioning hole is perfectly aligned with the positioning strip, the strong magnet pulls the phone hinge clasp on the nearest positioning strip into the clasp positioning hole. The longitudinal pressure plate continues to move downward. When the strong magnet is perfectly aligned with the positioning strip, the strong magnet attracts the remaining phone hinge clasps on the positioning strip and moves them toward the longitudinal pressure plate. The longitudinal pressure plate continues to move downward, snapping the phone hinge clasps into the annular groove of the shaft on the phone hinge body, completing the snap-in assembly. The overall structure is reasonable and compact. All parts involved are positioned by the equipment. At the same time, the entire pressing process is designed with a precise guiding mechanism. Moreover, batch feeding operations can be achieved for the core clasp components, which can ensure processing accuracy, ensure product yield and consistency, and also improve the processing efficiency of the clasp assembly process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a schematic diagram of the structure of the mobile phone hinge retaining ring assembly fixture according to a preferred embodiment of the present invention; Figure 2 This is a structural schematic diagram of the mobile phone hinge retaining ring assembly fixture from another perspective of a preferred embodiment of the present invention; Figure 3 This is an exploded view of the clamping module of the mobile phone hinge retaining ring assembly fixture according to a preferred embodiment of the present invention; Figure 4 This is an enlarged view of the positioning table of the mobile phone hinge retaining ring assembly fixture according to a preferred embodiment of the present invention; Figure 5 This is an enlarged view of the positioning table from another perspective of the mobile phone hinge retaining ring assembly fixture of the preferred embodiment of the present invention; Figure 6This is a partial enlarged view of the push block of the mobile phone hinge retaining ring assembly fixture according to a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the pressing module structure of the mobile phone hinge retaining ring assembly fixture according to a preferred embodiment of the present invention; Figure 8 yes Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the pressing module structure of the mobile phone hinge retaining ring assembly fixture from another perspective of a preferred embodiment of the present invention; Figure 10 yes Figure 9 Enlarged view at point B in the middle; Figure 11 This is a flowchart illustrating the application method of a mobile phone hinge retaining ring assembly fixture according to a preferred embodiment of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0017] The preferred embodiment of the present invention is a mobile phone hinge retainer assembly fixture, such as... Figure 1 As shown, see also Figures 2-10 It includes a base module 1, on which a positioning platform 2 and a bracket 3 are provided; The base module 1 is provided with clamping modules 4 and flat pushing modules 5 on both sides of the positioning platform 2; the bracket 3 is provided with pressing modules 6 located directly above the positioning platform 2. The clamping module 4 includes a clamping unit 40 for clamping the phone hinge body and a first guide unit 41 for guiding the clamping unit 40 to move toward the positioning platform 2 (a conventional guide structure such as a guide rail can be used). The clamping unit 40 is provided with a locking unit 42 that works with the base module 1 to lock the position. The flat push module 5 includes a flat push block 50 with a fixed retaining ring gasket and a second guide unit 51 (which can be a conventional guide structure such as a guide rail) to guide the flat push block 50 to move toward the positioning stage 2. The pressing module 6 includes a pressing block 60 for fixing the phone hinge retainer and a third guide unit 61 for guiding the pressing block 60 to move toward the positioning stage 2; The overall structure is reasonable and compact, and all the parts involved are positioned by the equipment. At the same time, the entire pressing process is designed with a precise guiding mechanism. Furthermore, the core retaining ring components can be batch-loaded, which can ensure processing accuracy, ensure product yield and consistency, and also improve the processing efficiency of the retaining ring assembly process.

[0018] Preferably, the clamping unit 40 includes a first clamping plate 400 and a second clamping plate 401 arranged vertically. The first clamping plate 400 and the second clamping plate 401 are detachably connected. Each of the opposite surfaces of the first clamping plate 400 and the second clamping plate 401 is provided with a positioning groove 402 for positioning the mobile phone hinge body. The two positioning grooves 402 are combined to form a clamping groove for clamping the mobile phone hinge body. The structure is simple and easy to operate, and the mobile phone hinge body has good positional accuracy under the action of the two positioning grooves 402. The detachable connection of the first clamping plate 400 and the second clamping plate 401 can adopt existing detachable connection methods, such as screw connection, etc., and there is no limitation thereto.

[0019] Preferably, the clamping unit 40 further includes a sliding table 403, the second clamping plate 401 is fixed on the sliding table 403, and side plates 404 are provided on both sides of the sliding table 403. The locking unit 42 includes two abutting nuts 420 respectively threaded on the side plates 404. The lower end of the abutting nuts 420 is directly opposite to the base module 1. The structure is reasonable and compact. When moved to the assembly position, the position can be quickly locked by rotating the abutting nuts 420, and vice versa.

[0020] Preferably, the side plate 404 is inverted L-shaped, and the outer surface of the longitudinal edge is fixedly connected to the side surface of the sliding table 403; the clamping nut 420 is threaded through the transverse edge of the side plate 404; the longitudinal edges of the two side plates 404 and the upper surface of the sliding table 403 enclose and form a mounting groove 405 for mounting the second clamping plate 401; the structural layout is reasonable, and the overall volume of the module can be reduced through this spatial layout.

[0021] Preferably, the upper surface of the positioning platform 2 is provided with a positioning piece 20, and the two sides of the positioning piece 20 are respectively provided with arc-shaped positioning grooves 21 corresponding to the two shafts of the mobile phone hinge body; the side surface of the positioning piece 20 facing the clamping module is provided with an arc-shaped guide protrusion 22; during assembly, with the positioning piece 20 as the center, the two shafts of the mobile phone hinge body pass through the arc-shaped positioning grooves 21 under the action of the guide protrusion 22, and complete the further precise positioning of the shafts; the purpose of this design is to accurately position the two shafts of the mobile phone hinge body again on the basis of the clamping unit 40 clamping the mobile phone hinge body for precise positioning, so as to avoid the failure of the snap ring assembly due to errors, etc. This part of the structure provides a solid foundation for the precise assembly of the snap ring.

[0022] Preferably, the side surface of the flat push block 50 facing the positioning table 2 is provided with two contour positioning grooves 500 for positioning the retaining ring gaskets. The bottom of the contour positioning groove 500 is provided with an opening 501 for the shaft of the mobile phone hinge body to pass through. The bottom of the contour positioning groove 500 is provided with multiple first adsorption holes 502 around the opening to adsorb and fix the retaining ring gaskets. The upper surface of the positioning table 2 is provided with a second adsorption hole 23 for adsorbing and detecting the mobile phone hinge body and a third adsorption hole 24 for adsorbing and detecting the retaining ring gaskets. During processing, the two... Each retaining ring washer is fed into two contoured positioning grooves 500 and is fixed by the negative pressure at the first adsorption hole 502. During assembly, the two shafts of the phone hinge body will pass through the retaining ring washer and enter the corresponding opening 501. When the flat push block 50 moves to the assembly position, the first adsorption hole 502 releases the adsorption, and the third adsorption hole 24 adsorbs and fixes the retaining ring washer, completing the step of the retaining ring washer passing through the shaft. The second adsorption hole 23 is for further adsorption detection of the phone hinge body to ensure that the phone hinge body has been fed.

[0023] Preferably, the third guiding unit 61 includes a longitudinal guide plate 610 fixedly connected to the bracket 3, a guide rail 611 is provided on the guide plate 610, and the lower pressing block 60 includes a transverse pressing plate 600 longitudinally slidably disposed on the guide rail 611; the third guiding unit 61 also includes two guide rods 612 fixedly connected to the bracket 3, and two guide sleeves 601 corresponding to and cooperating with the guide rods 612 are provided on the transverse pressing plate 600; the two guide rods 612 and the guide rail 611 are distributed in an isosceles triangle; a triangular distribution guiding structure is adopted here to ensure the processing accuracy.

[0024] Preferably, the lower pressure block 60 further includes a longitudinal pressure plate 602 fixed on the transverse pressure plate 600. The lower end of the longitudinal pressure plate 602 is provided with two pressure-holding grooves corresponding to the two axes of the mobile phone hinge body, respectively, to accommodate the mobile phone hinge retaining ring 8. The lower ends of the two guide rods 612 are connected by a connecting rod 613. The upper surface of the connecting rod 613 is provided with two positioning strips 614 for positioning and distributing the mobile phone hinge retaining ring 8. The positioning strips 614 correspond one-to-one with the pressure-holding grooves. The positioning strips 614 are formed by connecting a first transverse strip 6140 and a second transverse strip 6141 arranged vertically. The cross section of the first transverse strip 6140 is semi-cylindrical with the transverse edge facing downwards. The cross section of the second transverse strip 6141 is semi-cylindrical with the transverse edge facing downwards. The surface is in the shape of an isosceles trapezoid, with the upper edge of the trapezoid integrally formed with the transverse edge of a semi-cylindrical shape; the holding groove includes a receiving hole 6030 corresponding to the shaft of the mobile phone hinge body and a retaining ring positioning hole 6031 provided at one end of the receiving hole facing the clamping module; the lower end of the longitudinal pressure plate 602 is provided with two strong magnets 604 respectively located directly above the holding groove; when the retaining ring positioning hole 6031 is completely aligned with the positioning strip 614, the strong magnet 604 pulls the mobile phone hinge retaining ring 8 on the nearest positioning strip into the retaining ring positioning hole 6031; when the strong magnet 604 is completely aligned with the positioning strip, the strong magnet attracts the remaining mobile phone hinge retaining ring 8 on the positioning strip and moves the remaining mobile phone hinge retaining ring towards the longitudinal pressure plate; During loading, two rows of mobile phone hinge retaining rings are loaded onto two positioning strips, and the longitudinal pressure plate stops them from falling off. During processing, under the guidance of the third guide unit, the longitudinal pressure plate moves downward. When the retaining ring positioning hole is completely aligned with the positioning strip, the strong magnet pulls the mobile phone hinge retaining ring 8 on the nearest positioning strip into the retaining ring positioning hole. The longitudinal pressure plate continues to move downward. When the strong magnet is completely aligned with the positioning strip, the strong magnet attracts the remaining mobile phone hinge retaining ring 8 on the positioning strip and moves the remaining mobile phone hinge retaining ring 8 toward the longitudinal pressure plate. The longitudinal pressure plate continues to move downward, snapping the mobile phone hinge retaining ring into the annular groove of the shaft on the mobile phone hinge body, completing the snapping assembly. For the core retaining ring components, batch loading operations can be achieved, which can ensure processing accuracy and ensure product yield and consistency.

[0025] A method for applying a mobile phone hinge retainer assembly fixture, wherein the mobile phone hinge retainer assembly fixture described above is used. Figure 11 As shown, the method includes the following steps: S01: Load the two rows of mobile phone hinge retaining rings onto the two positioning strips, and prevent them from falling off by the longitudinal pressure plate; load the mobile phone hinge body onto the clamping module, which is clamped by the first clamping plate and the second clamping plate; guide the clamping module to the shaft on the mobile phone hinge body through the arc-shaped positioning groove under the guidance of the first guide unit; the second suction hole adsorbs the mobile phone hinge body for secondary fixation and to check whether it is in place; S02: The retaining ring washer is loaded onto the contour positioning groove on the flat push module and fixed by adsorption through the first adsorption hole; the flat push module is moved under the guidance of the second guide unit to the shaft on the mobile phone hinge body through the opening; the retaining ring washer is adsorbed by the third adsorption hole for fixing and to check whether it is in place; the first adsorption hole releases adsorption and the flat push module is reset. S03: Under the guidance of the third guide unit, the longitudinal pressure plate moves downward. When the retaining ring positioning hole is completely aligned with the positioning strip, the strong magnet pulls the mobile phone hinge retaining ring on the nearest positioning strip into the retaining ring positioning hole. The longitudinal pressure plate continues to move downward. When the strong magnet is completely aligned with the positioning strip, the strong magnet attracts the remaining mobile phone hinge retaining ring on the positioning strip and moves the remaining mobile phone hinge retaining ring toward the longitudinal pressure plate. The longitudinal pressure plate continues to move downward, snapping the mobile phone hinge retaining ring into the annular groove of the shaft on the mobile phone hinge body, completing the snap-in assembly.

[0026] The overall structure is reasonable and compact, and all the parts involved are positioned by the equipment. At the same time, the entire pressing process is designed with a precise guiding mechanism. Furthermore, the core retaining ring components can be batch-loaded, which can ensure processing accuracy, ensure product yield and consistency, and also improve the processing efficiency of the retaining ring assembly process.

[0027] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A mobile phone hinge retaining ring assembly fixture, characterized in that, Includes a base module, on which a positioning platform and a bracket are provided; The base module is provided with clamping modules and flat pushing modules on both sides of the positioning platform; the bracket is provided with a pressing module located directly above the positioning platform. The clamping module includes a clamping unit for clamping the phone hinge body and a first guiding unit for guiding the clamping unit to move toward the positioning platform. The clamping unit is provided with a locking unit that interacts with the base module to lock the position. The push module includes a push block with a fixed retaining ring washer and a second guide unit for guiding the push block to move toward the positioning platform; The pressing module includes a pressing block for fixing the phone hinge retaining ring and a third guiding unit for guiding the pressing block to move toward the positioning platform; The upper surface of the positioning platform is provided with a positioning piece, and the two sides of the positioning piece are respectively provided with arc-shaped positioning grooves corresponding to the two axes of the mobile phone hinge body; the side surface of the positioning piece facing the clamping module is provided with an arc-shaped guide protrusion. The flat push block has two contoured positioning grooves on the side facing the positioning platform for positioning the retaining ring gasket. The bottom of the contoured positioning groove has an opening for the shaft of the mobile phone hinge body to pass through. The bottom of the contoured positioning groove has multiple first adsorption holes around the opening for adsorbing and fixing the retaining ring gasket. The upper surface of the positioning platform has a second adsorption hole for adsorbing and detecting the mobile phone hinge body and a third adsorption hole for adsorbing and detecting the retaining ring gasket. The third guiding unit includes a longitudinal guide plate fixedly connected to the bracket, a guide rail is provided on the guide plate, and the lower pressing block includes a transverse pressing plate that is longitudinally slidably disposed on the guide rail; The third guide unit also includes two guide rods fixedly connected to the bracket, and two guide sleeves corresponding to the guide rods are provided on the transverse pressure plate; The two guide rods and the guide rail are arranged in an isosceles triangle. The lower pressure block also includes a longitudinal pressure plate fixed on the transverse pressure plate. The lower end of the longitudinal pressure plate is provided with two pressure grooves that correspond to the two axes of the mobile phone hinge body and accommodate the mobile phone hinge retaining ring. The lower ends of the two guide rods are connected by a connecting rod, and the upper surface of the connecting rod is provided with two positioning strips for positioning and distributing the mobile phone hinge retaining rings; the positioning strips correspond one-to-one with the pressing grooves; The positioning strip is formed by connecting a first horizontal strip and a second horizontal strip arranged vertically. The first horizontal strip has a semi-cylindrical cross-section with its horizontal edge facing downwards, and the second horizontal strip has an isosceles trapezoidal cross-section with its upper edge integrally formed with the semi-cylindrical horizontal edge. The holding groove includes a receiving hole corresponding to the shaft of the phone hinge body and a retaining ring positioning hole located at the end of the receiving hole facing the clamping module. The lower end of the longitudinal pressure plate is provided with two strong magnets located directly above the holding groove. When the retaining ring positioning hole is completely aligned with the positioning strip, the strong magnet pulls the phone hinge retaining ring on the nearest positioning strip into the retaining ring positioning hole. When the strong magnet is completely aligned with the positioning strip, the strong magnet attracts the remaining phone hinge retaining ring on the positioning strip and moves the remaining phone hinge retaining ring toward the longitudinal pressure plate.

2. The mobile phone hinge retaining ring assembly fixture according to claim 1, characterized in that, The clamping unit includes a first clamping plate and a second clamping plate arranged vertically. The first clamping plate and the second clamping plate are detachably connected. Positioning grooves for positioning the mobile phone hinge body are provided on the opposite side surfaces of the first clamping plate and the second clamping plate. The two positioning grooves are combined to form a clamping groove for clamping the mobile phone hinge body.

3. The mobile phone hinge retaining ring assembly fixture according to claim 2, characterized in that, The clamping unit also includes a sliding table, the second clamping plate is fixed on the sliding table, and side plates are provided on both sides of the sliding table. The locking unit includes two locking nuts that are threaded onto the side plates respectively, and the lower end of the locking nuts is directly opposite the base module.

4. The mobile phone hinge retaining ring assembly fixture according to claim 3, characterized in that, The side plate is inverted L-shaped, and the outer surface of the longitudinal edge is fixedly connected to the side surface of the sliding table; the clamping nut is threaded through the transverse edge of the side plate; the longitudinal edges of the two side plates and the upper surface of the sliding table enclose and form a mounting groove for mounting the second clamping plate.

5. A method for applying a mobile phone hinge retaining ring assembly fixture, comprising using the mobile phone hinge retaining ring assembly fixture as described in any one of claims 1-4, characterized in that, The method includes the following steps: The two rows of mobile phone hinge retaining rings are loaded onto the two positioning strips and stopped by the longitudinal pressure plate to prevent them from falling off; The phone hinge body is loaded onto the clamping module, where it is clamped by the first clamping plate and the second clamping plate. Guided by the first guide unit, the clamping module is moved to the axis on the phone hinge body, which passes through the arc-shaped positioning groove. The second suction hole attracts the phone hinge body for secondary fixation and to check whether it is in place. The retaining ring washer is fed into the contour positioning groove on the flat push module and is fixed by adsorption through the first adsorption hole; Guided by the second guide unit, the flat push module is moved to the shaft on the phone hinge body through the opening; the third suction hole adsorbs the retaining ring gasket for fixing and checking whether it is in place, the first suction hole releases the adsorption, and the flat push module is reset. Guided by the third guide unit, the longitudinal pressure plate moves downward. When the clasp positioning hole is perfectly aligned with the positioning strip, the strong magnet pulls the phone hinge clasp on the nearest positioning strip into the clasp positioning hole. The longitudinal pressure plate continues to move downward. When the strong magnet is perfectly aligned with the positioning strip, the strong magnet attracts the remaining phone hinge clasps on the positioning strip and moves them toward the longitudinal pressure plate. The longitudinal pressure plate continues to move downward, engaging the phone hinge clasps into the annular groove on the shaft of the phone hinge body, completing the engagement assembly.

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