Mobile phone rear cover grinding and clamping tool and anti-shaking structure

By improving the clamping fixture components and negative pressure adsorption structure, the problem of shaking caused by unstable clamping was solved, achieving stable clamping of the phone back cover and efficient collection of grinding particles.

CN224129455UActive Publication Date: 2026-04-17SUZHOU XINSHENGYI PRECISION HARDWARE MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU XINSHENGYI PRECISION HARDWARE MOULD CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing mobile phone back cover grinding clamping fixtures are prone to clamping damage or shaking during the clamping process due to excessive or insufficient clamping force, which affects the stability and yield of the grinding process.

Method used

The clamping fixture assembly includes an upper clamping seat, pressure dividing column, clamping plate and cylinder. Combined with negative pressure adsorption and rubber pressure dividing component, a stable clamping structure is formed. The stability is improved by negative pressure adsorption and rubber buffer. At the same time, an annular dust collection seat is set to collect grinding particles.

Benefits of technology

It improves the clamping stability of the phone back cover, reduces shaking during the grinding process, lowers the defect rate, and facilitates the collection of grinding particles.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a mobile phone rear cover grinding and clamping tool and an anti-shaking structure, the mobile phone rear cover grinding and clamping tool comprises a clamping tool assembly, a lower clamping seat is arranged in the clamping tool assembly, and an upper clamping seat used for clamping a mobile phone rear cover is further arranged in the clamping tool assembly. Compared with the prior art, the mobile phone rear cover clamping device has the advantages that the clamping tool assembly and the pressure dividing pieces are additionally arranged, the three pressure dividing pieces are installed below the three pressure dividing columns respectively, a mobile phone rear cover is arranged above the lower clamping base, the clamping air cylinder drives the three pressure dividing pieces to move downwards through the upper clamping base to form a clamping structure with the lower clamping base, and therefore the mobile phone rear cover is clamped. The soft contact structure forms clamping buffering, the upper adsorption hole and the lower adsorption hole generate suction force to assist fixation, the clamping stability can be improved, the clamping tool assembly is additionally arranged, particles generated by grinding fall into the collecting groove, negative pressure suction force is generated intermittently through the dust suction pipe, the particles are adsorbed and collected through the annular dust suction base, and the grinding effect is improved. And grinding particles can be conveniently collected.
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Description

Technical Field

[0001] This utility model belongs to the field of mobile phone back cover grinding technology, and specifically relates to a mobile phone back cover grinding clamping fixture and anti-shaking structure. Background Technology

[0002] The back cover of a mobile phone is a crucial component for protecting internal electronic components. To prevent scratches caused by rough edges and other non-smooth surfaces during use, it undergoes a grinding process during production to achieve a high degree of smoothness. Before grinding, the back cover typically requires clamping to ensure stability and prevent movement during the grinding process. However, in actual production, clamping fixtures often rely solely on a rigid lower support structure and a rigid clamping plate to hold the back cover in place. This clamping force can be reduced to prevent damage from excessive force, while insufficient force can lead to movement during grinding, increasing the defect rate and impacting the overall grinding process.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mobile phone back cover grinding clamping fixture and anti-shaking structure to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a mobile phone back cover grinding clamping fixture and anti-shaking structure, comprising: a clamping fixture assembly, wherein the clamping fixture assembly is provided with a lower clamping seat, and the clamping fixture assembly is also provided with an upper clamping seat for clamping the mobile phone back cover, wherein three sets of pressure dividing columns evenly distributed in a circle are fixedly connected below the upper clamping seat, and a pressure dividing component is installed below the pressure dividing columns, wherein a group feeding hole is opened between the upper clamping seat and the three sets of pressure dividing columns, wherein a clamping plate is provided in the pressure dividing component, wherein a number of upper adsorption holes for forming contact suction are opened on the lower surface of the clamping plate, and a number of lower adsorption holes are opened on the upper surface of the lower clamping seat, and a clamping cylinder is fixedly connected above the upper clamping seat.

[0006] In a preferred embodiment, a group delivery pipe is fixedly connected to each of the three group delivery holes on the upper surface of the upper clamping seat. A delivery ring pipe is fixedly connected above the delivery pipe, and an upper air pipe is fixedly connected to the right side of the delivery ring pipe. The upper air pipe is connected to an external negative pressure device.

[0007] In a preferred embodiment, a lower air tube is fixedly connected to the front side of the lower clamping seat, and a lower air chamber is opened on the inner side of the lower clamping seat. The lower air chamber is connected to the lower air tube, and the lower air tube is also connected to the upper air tube. Negative pressure suction is guided through the upper air tube and the lower air tube to form negative pressure adsorption assistance during clamping.

[0008] In a preferred embodiment, the clamping plate has an upper air chamber on its inner side, which is interconnected with several sets of upper adsorption holes, and the lower air chamber is interconnected with several sets of lower adsorption holes.

[0009] In a preferred embodiment, a fitting seat is fixedly connected above the clamping plate, and a connecting hole is opened on the upper surface of the fitting seat facing upward into the air cavity. The connecting hole communicates with the dispensing hole.

[0010] In a preferred embodiment, the lower surface of the pressure-distributing column is provided with a fitting groove, the pressure-distributing component is made of rubber material, the fitting seat and the fitting groove fit together, and a soft lower clamping plate is fixedly connected above the lower clamping seat. The upper surface of the soft lower clamping plate and the lower surface of the clamping plate are provided with anti-slip textures. The pressure-distributing component is connected to the pressure-distributing column through the fitting seat and the fitting groove, so that the pressure-distributing component directly contacts the back cover of the mobile phone during clamping.

[0011] In a preferred embodiment, the clamping fixture assembly is further provided with a fixture base, a bracket is fixedly connected to the front side of the upper surface of the fixture base, and the clamping cylinder is fixedly connected to the rear end of the bracket.

[0012] In a preferred embodiment, the upper surface of the tooling base is provided with a collection groove, which is a trapezoidal structure that is wider at the top and narrower at the bottom. At the center of the collection groove, there is an annular dust collection seat for adsorbing grinding particles in a ring structure. A dust collection pipe is fixedly connected to the lower side of the annular dust collection seat. The grinding particles fall into the collection groove and are intermittently drawn by the dust collection pipe to generate negative pressure suction, so that the annular dust collection seat adsorbs and collects the particles, thereby facilitating the collection of grinding particles.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By adding clamping fixture components and pressure-dividing parts, the three pressure-dividing parts are installed below the three pressure-dividing columns respectively. The back cover of the mobile phone is placed above the lower clamping seat. The clamping cylinder drives the three pressure-dividing parts to move down through the upper clamping seat to form a clamping structure with the lower clamping seat. The soft contact structure forms a clamping buffer, and the clamping contact surface has an anti-slip texture structure to improve clamping stability. During clamping, the upper and lower air pipes guide negative pressure suction, and then the upper and lower adsorption holes generate suction to assist in fixing the back cover of the mobile phone, thereby improving clamping stability.

[0015] 2. By adding clamping fixture components, the particles generated during grinding fall into the collection tank and are intermittently suctioned by the suction pipe to allow the annular suction seat to adsorb and collect the particles, thus facilitating the collection of grinding particles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a mobile phone back cover grinding clamping fixture and anti-shaking structure according to the present invention.

[0018] Figure 2 This is a schematic diagram of the upper structure of the clamping fixture component in the grinding and clamping fixture and anti-shaking structure for a mobile phone back cover according to this utility model.

[0019] Figure 3 This is a schematic diagram of the lower side structure of the clamping fixture component in the mobile phone back cover grinding clamping fixture and anti-shaking structure of this utility model.

[0020] Figure 4 This is a partial cross-sectional view of the clamping fixture components in the mobile phone back cover grinding clamping fixture and anti-shaking structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the pressure-dividing component in a mobile phone back cover grinding clamping fixture and anti-shaking structure according to the present invention.

[0022] Figure 6 This is a cross-sectional schematic diagram of the pressure-dividing component in the grinding and clamping fixture and anti-shaking structure for a mobile phone back cover according to this utility model.

[0023] In the diagram, 100-clamping fixture assembly, 101-tooling base, 102-bracket, 103-clamping cylinder, 104-upper clamping seat, 105-pressure dividing column, 106-fitting groove, 107-distribution hole, 108-distribution ring pipe, 109-upper air pipe, 110-lower clamping seat, 111-lower suction hole, 112-lower air pipe, 113-lower air chamber, 114-collection groove, 115-ring dust collection seat, 116-dust collection pipe;

[0024] 200-Pressure-dividing component, 201-Clamping plate, 202-Matching seat, 203-Connecting hole, 204-Upper air chamber, 205-Upper dust suction hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 As the first embodiment of this utility model:

[0027] A mobile phone back cover grinding clamping fixture and anti-shaking structure includes: a clamping fixture assembly 100, a lower clamping seat 110 in the clamping fixture assembly 100, and an upper clamping seat 104 for clamping the mobile phone back cover in the clamping fixture assembly 100.

[0028] Three sets of pressure-dividing columns 105 are fixedly connected below the upper clamping seat 104 and are evenly distributed in a circle. A pressure-dividing component 200 is installed below the pressure-dividing column 105. A group feeding hole 107 is opened between the upper clamping seat 104 and the three sets of pressure-dividing columns 105.

[0029] The pressure dividing component 200 is provided with a clamping plate 201. The lower surface of the clamping plate 201 is provided with several sets of upper adsorption holes 205 for forming contact suction. The upper surface of the lower clamping seat 110 is provided with several sets of lower adsorption holes 111. A clamping cylinder 103 is fixedly connected above the upper clamping seat 104.

[0030] A group of feeding pipes is fixedly connected to each of the three feeding holes 107 on the upper surface of the upper clamping seat 104. A feeding ring pipe 108 is fixedly connected above the feeding pipe. An upper air pipe 109 is fixedly connected to the right side of the feeding ring pipe 108. The upper air pipe 109 is connected to an external negative pressure device.

[0031] The lower clamping seat 110 is fixedly connected to the front side of the lower air tube 112. The lower clamping seat 110 has a lower air chamber 113 on the inner side. The lower air chamber 113 is connected to the lower air tube 112. The lower air tube 112 is also connected to the upper air tube 109. Negative pressure suction is guided through the upper air tube 109 and the lower air tube 112 to form negative pressure adsorption assistance during clamping.

[0032] An upper air chamber 204 is provided on the inner side of the clamping plate 201. The upper air chamber 204 is interconnected with several sets of upper adsorption holes 205, and the lower air chamber 113 is interconnected with several sets of lower adsorption holes 111.

[0033] A fitting seat 202 is fixedly connected above the clamping plate 201. A connecting hole 203 is opened on the upper surface of the fitting seat 202 facing the air cavity 204. The connecting hole 203 is connected to the dispensing hole 107.

[0034] The pressure dividing column 105 has a fitting groove 106 on its lower surface. The pressure dividing component 200 is made of rubber material. The fitting seat 202 fits into the fitting groove 106. A soft lower clamping plate is fixedly connected above the lower clamping seat 110. The upper surface of the soft lower clamping plate and the lower surface of the clamping plate 201 are provided with anti-slip texture. The pressure dividing component 200 is connected to the pressure dividing column 105 through the fitting seat 202 and the fitting groove 106, so that the pressure dividing component 200 directly contacts the back cover of the mobile phone during clamping.

[0035] The clamping fixture assembly 100 also includes a fixture base 101. A bracket 102 is fixedly connected to the front side of the upper surface of the fixture base 101, and a clamping cylinder 103 is fixedly connected to the rear end of the bracket 102.

[0036] Specifically, the user connects the three pressure components 200 to the fitting slots 106 via the fitting seats 202, and connects the pressure components 200 to the pressure columns 105. The back cover of the mobile phone is placed on the lower clamping seat 110. The clamping cylinder 103 drives the upper clamping seat 104 to move down, so that the pressure components 200 and the soft lower clamping plate form a clamping action to stably clamp the back cover of the mobile phone. The pressure components 200 and the soft lower clamping plate, which are made of rubber material, prevent the pinching damage caused by hard clamping. The contact surface has an anti-slip texture structure, which can improve the clamping stability.

[0037] Secondly, negative pressure suction is guided through the upper air tube 109 and the lower air tube 112 and introduced into the upper air chamber 204 and the lower air chamber 113 respectively. Then, negative pressure suction is generated through the upper adsorption hole 205 and the lower adsorption hole 111. In the clamping of the back cover of the mobile phone, the negative pressure adsorption assists in stabilization, thereby improving the clamping stability.

[0038] Please see Figures 1-3 As a second embodiment of this utility model:

[0039] The upper surface of the tooling base 101 is provided with a collection groove 114. The collection groove 114 has a trapezoidal structure that is wider at the top and narrower at the bottom. At the center of the collection groove 114, there is an annular dust collection seat 115 for adsorbing grinding particles in a ring structure. A dust collection pipe 116 is fixedly connected to the lower side of the annular dust collection seat 115. The grinding particles fall into the collection groove 114 and are intermittently drawn by the negative pressure suction generated by the dust collection pipe 116, so that the annular dust collection seat 115 adsorbs and collects the particles.

[0040] Based on the first embodiment described above, a large number of grinding particles are generated during the grinding operation of the mobile phone back cover. The particles generated during grinding naturally fall into the collection groove 114 and are intermittently subjected to negative pressure suction through the suction pipe 116, so that the annular suction seat 115 adsorbs and collects the particles, thereby facilitating the collection of grinding particles.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile phone back cover grinding clamping tool and anti-shaking structure, comprising: A clamping fixture assembly (100) is characterized in that: the clamping fixture assembly (100) is provided with a lower clamping seat (110), and the clamping fixture assembly (100) is also provided with an upper clamping seat (104) for clamping the back cover of a mobile phone. Three sets of pressure-distributing columns (105) are fixedly connected below the upper clamping seat (104) and are evenly distributed in a circle. A pressure-distributing component (200) is installed below the pressure-distributing column (105). A group feeding hole (107) is opened between the upper clamping seat (104) and the three sets of pressure-distributing columns (105). The pressure distribution component (200) is provided with a clamping plate (201). The lower surface of the clamping plate (201) is provided with a number of upper adsorption holes (205) for forming contact suction. The upper surface of the lower clamping seat (110) is provided with a number of lower adsorption holes (111). A clamping cylinder (103) is fixedly connected above the upper clamping seat (104).

2. The mobile phone back cover grinding clamping fixture and anti-shake structure as described in claim 1, characterized in that: The upper clamping seat (104) has a group delivery pipe fixedly connected to each of the three group delivery holes (107) on its upper surface. A delivery ring pipe (108) is fixedly connected above the delivery pipe. An upper air pipe (109) is fixedly connected to the right side of the delivery ring pipe (108). The upper air pipe (109) is connected to an external negative pressure device.

3. The mobile phone back cover grinding clamping fixture and anti-shake structure as described in claim 2, characterized in that: The lower clamping seat (110) is fixedly connected to the front side of the lower air pipe (112), and the lower clamping seat (110) has a lower air chamber (113) on the inner side. The lower air chamber (113) is connected to the lower air pipe (112), and the lower air pipe (112) is also connected to the upper air pipe (109).

4. The mobile phone rear cover grinding clamping tool and anti-shaking structure of claim 3, characterized in that: The clamping plate (201) has an upper air chamber (204) on its inner side. The upper air chamber (204) is interconnected with several sets of upper adsorption holes (205). The lower air chamber (113) is interconnected with several sets of lower adsorption holes (111).

5. The mobile phone rear cover grinding clamping tool and anti-shaking structure of claim 1, wherein: A fitting seat (202) is fixedly connected above the clamping plate (201). A connecting hole (203) is opened on the upper surface of the fitting seat (202) towards the upward air cavity (204). The connecting hole (203) is connected to the dispensing hole (107).

6. The mobile phone back cover grinding clamping fixture and anti-shake structure as described in claim 5, characterized in that: The pressure dividing column (105) has a fitting groove (106) on its lower surface. The pressure dividing component (200) is made of rubber material. The fitting seat (202) fits into the fitting groove (106). A soft lower clamping plate is fixedly connected above the lower clamping seat (110). The upper surface of the soft lower clamping plate and the lower surface of the clamping plate (201) are both provided with anti-slip texture.

7. The mobile phone back cover grinding clamping fixture and anti-shake structure as described in claim 6, characterized in that: The clamping fixture assembly (100) is further provided with a fixture base (101), and a bracket (102) is fixedly connected to the front side of the upper surface of the fixture base (101). The clamping cylinder (103) is fixedly connected to the rear end of the bracket (102).

8. The mobile phone back cover grinding clamping fixture and anti-shake structure as described in claim 7, characterized in that: The tooling base (101) has a collection groove (114) on its upper surface. The collection groove (114) is a trapezoidal structure that is wider at the top and narrower at the bottom. The center of the collection groove (114) is provided with an annular dust collection seat (115) for adsorbing abrasive particles in an annular structure. A dust collection pipe (116) is fixedly connected to the lower side of the annular dust collection seat (115).