Rapid positioning tool for mobile phone metal middle frame
By using a rapid positioning system driven by a guide groove, connecting rod, limiting beam, and motor, combined with a pneumatically controlled support mechanism and rotary drive components, the problems of slow positioning speed, low accuracy, and unstable support of traditional positioning fixtures are solved. This enables rapid, accurate positioning and stable support of the metal frame of mobile phones, improving processing quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽策睿精密机械有限公司
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional positioning fixtures for mobile phone metal frames suffer from slow positioning speed, low positioning accuracy, and unstable support leading to frame deformation, making it difficult to meet the high-efficiency and high-precision production needs of modern mobile phone manufacturing.
A rapid positioning system using guide grooves, connecting rods, limiting beams, and motor drive, combined with a pneumatically controlled support mechanism and a rotary drive assembly, enables rapid, precise positioning and stable support of the mobile phone's metal frame.
It enables rapid positioning of the metal frame of mobile phones, improves positioning accuracy and processing quality, reduces product scrap rate, and enhances processing flexibility and production efficiency.
Smart Images

Figure CN224333985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile phone manufacturing technology, and in particular to a quick positioning tool for a mobile phone metal frame. Background Technology
[0002] In the mobile phone manufacturing process, the machining precision of the metal mid-frame has a significant impact on the overall quality and performance of the phone. When performing machining operations such as drilling and grooving on the metal mid-frame, precise positioning and stable support are required. Traditional positioning fixtures often suffer from slow positioning speed and low positioning accuracy, making it difficult to meet the high-efficiency and high-precision production demands of modern mobile phone manufacturing. Furthermore, due to the inherent structural characteristics of the mid-frame, unstable support during drilling or grooving can easily lead to deformation, affecting machining quality and even causing product scrap. Therefore, there is an urgent need for a mobile phone metal mid-frame positioning fixture that can achieve rapid positioning and provide stable support. Utility Model Content
[0003] To address the technical problems existing in the background art, this utility model proposes a quick positioning fixture for the metal frame of a mobile phone.
[0004] This utility model proposes a quick positioning fixture for a mobile phone metal frame, including a platform and a base;
[0005] The platform is rectangular, and four sets of guide grooves are arranged through the platform. One end of each set of guide grooves converges at the geometric center of the platform, and the other end points to the four corners of the rectangle.
[0006] Each of the four sets of guide grooves is vertically engaged with a slidable connecting rod, and the top of each of the four sets of connecting rods extends to the top of the platform and is fixedly connected to a positioning component.
[0007] The platform has two sets of horizontally sliding limiting beams at its bottom. Each set of limiting beams has a straight limiting groove along its length, and a moving block is installed in the middle of the limiting groove.
[0008] The four sets of connecting rods are divided into two groups, left and right, in a mirror relationship. The lower ends of the two connecting rods in each group are inserted into the limiting grooves of the corresponding limiting beams and are symmetrically distributed on both sides of the moving block.
[0009] The bottom of the platform is fixed with a bidirectional output motor, and the two ends of the motor are respectively connected to lead screws with opposite threads. Each of the two sets of lead screws and the corresponding moving block form a threaded transmission pair.
[0010] The four corners of the base are fixedly connected to the platform by multiple sets of support rods.
[0011] Preferably, four sets of support mechanisms are evenly distributed on the upper edge of the platform, and each set of support mechanisms is used to support the corresponding inner sidewall of the metal frame of the mobile phone.
[0012] Preferably, the support mechanism includes:
[0013] A rectangular groove formed on the upper surface of the platform;
[0014] A lifting beam is fitted into a groove, and an annular sealing rubber ring is provided on the outer wall of the lifting beam to form a sliding sealing structure with the inner wall of the groove.
[0015] Four sets of air nozzles are installed on the side wall of the platform, and each air nozzle is sealed and connected to the bottom of the corresponding groove through an air passage.
[0016] An air pump is installed on the base, and the air pump is connected to four sets of air nozzles through four sets of hoses to form an air circuit control system.
[0017] Multiple support members are evenly distributed on the top of the lifting beam, and the lifting function is achieved through air circuit control: when inflated, the support members rise and support the inner side wall of the middle frame, and when deflated, the support members fall back into the groove.
[0018] Preferably, multiple limiting posts are vertically arranged at the bottom of the lifting beam, and the limiting posts and the guide holes corresponding to the bottom wall of the groove form a sliding snap-fit structure.
[0019] Preferably, it also includes a base, on which a rotation drive assembly is disposed, the output end of which is connected to the bottom of the base for driving the base to rotate around an axis.
[0020] The quick positioning fixture for a mobile phone metal frame proposed in this utility model has the following beneficial effects:
[0021] 1. Rapid positioning: This invention, through the cooperation of a bidirectional output motor, lead screw, limiting beam and connecting rod, can realize the synchronous movement of four positioning components, and quickly locate the four corners from inside the metal frame of the mobile phone. Compared with the traditional positioning method, it greatly shortens the positioning time and improves production efficiency.
[0022] 2. Precise positioning: The guide groove design provides a precise movement trajectory for the positioning component, ensuring that the positioning component can be accurately positioned at the four corners of the middle frame, improving positioning accuracy, and thus ensuring the processing accuracy of the mobile phone metal middle frame.
[0023] 3. Stable support: The support mechanism uses an air circuit control system to raise and lower the support components. When drilling or grooving the middle frame, it can provide stable support to the inner wall of the middle frame, effectively preventing deformation of the middle frame, ensuring processing quality, and reducing product scrap rate.
[0024] 4. Flexible processing: The rotary drive component on the base allows the base to rotate around the axis, which facilitates the processing of different parts of the metal frame of the mobile phone, meets diverse processing needs, and improves the applicability of the tooling and processing efficiency.
[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a partial structural diagram of the platform in this utility model;
[0028] Figure 3 This is a schematic diagram of the limiting beam portion in this utility model;
[0029] Figure 4 This is a schematic diagram of the support mechanism in this utility model;
[0030] Explanation of the numbers in the diagram: 1. Platform; 101. Guide groove; 102. Motor; 103. Lead screw; 104. Limiting beam; 105. Moving block;
[0031] 2. Base; 201. Connecting rod; 202. Positioning component; 203. Support rod;
[0032] 3. Support mechanism; 301. Groove; 302. Lifting beam; 303. Support component; 304. Limiting post; 305. Air nozzle;
[0033] 4. Base. Detailed Implementation
[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0035] like Figures 1-4 The illustrated quick positioning fixture for a mobile phone metal frame includes a platform 1 and a base 2. The platform 1 is rectangular, and four sets of guide grooves 101 are arranged through it. One end of each guide groove 101 converges at the geometric center of the platform 1, and the other end points to the four corners of the rectangle. This arrangement of the guide grooves 101 provides a guiding path for the subsequent positioning component 202, ensuring that the positioning component 202 moves along a predetermined trajectory, thereby achieving precise positioning of the mobile phone metal frame.
[0036] Each of the four sets of guide grooves 101 has a vertically engaging slidable connecting rod 201. The top ends of the four sets of connecting rods 201 extend above the platform 1 and are fixedly connected to the positioning components 202. Through the cooperation between the connecting rods 201 and the guide grooves 101, the positioning components 202 can slide on the platform 1, and the four positioning components 202 can locate the four corners from inside the metal frame of the mobile phone, thereby achieving precise positioning of the frame.
[0037] The bottom of platform 1 is provided with two sets of laterally sliding limiting beams 104. Each set of limiting beams 104 has a straight limiting groove along its length, and a moving block 105 is installed in the middle of the limiting groove. Four sets of connecting rods 201 are divided into left and right sets in a mirror relationship. The lower ends of the two connecting rods 201 in each set are inserted into the limiting grooves of the corresponding limiting beams 104 and are symmetrically distributed on both sides of the moving block 105. A bidirectional output motor 102 is fixedly installed at the bottom of platform 1. The two ends of the motor 102 are respectively connected to lead screws 103 with opposite thread directions. The two sets of lead screws 103 and their corresponding moving blocks 105 form a threaded transmission pair. The bidirectional output motor 102 drives the limiting beam 104 to slide laterally through the threaded transmission of the lead screw 103 and the moving block 105. Then, through the connecting rod 201, it pushes the positioning component 202 to slide in the guide groove 101, realizing the synchronous movement of the four positioning components 202 and quickly completing the positioning of the mobile phone metal frame. The four corners of the base 2 are fixedly connected to the platform 1 through multiple sets of support rods 203.
[0038] Four sets of support mechanisms 3 are evenly distributed along the edge of the upper surface of platform 1, each set of support mechanisms 3 being used to support the corresponding inner sidewall of the metal frame of the mobile phone. The support mechanism 3 includes a rectangular groove 301 opened on the upper surface of platform 1; a lifting beam 302 embedded in the groove 301, the outer sidewall of the lifting beam 302 is provided with an annular sealing rubber ring, forming a sliding sealing structure with the inner sidewall of the groove 301; four sets of air nozzles 305 installed on the sidewall of platform 1, each air nozzle 305 being sealed and connected to the bottom of the corresponding groove 301 through an air passage; an air pump located on the base 2, the air pump being connected to the four sets of air nozzles 305 through four sets of hoses, forming an air circuit control system; multiple support members 303 are evenly distributed on the top of the lifting beam 302, and the lifting function is realized through air circuit control: when inflating, the support members 303 rise and support the inner sidewall of the frame, and when deflating, the support members 303 fall back into the groove 301. When drilling or grooving is performed on the middle frame, the air pump inflates the air circuit system, and the support 303 rises, which can provide stable support for the inner wall of the middle frame and prevent the middle frame from deforming during processing. After processing is completed, the air pump is deflated, and the support 303 falls back, making it easy to remove the middle frame.
[0039] To further improve the stability of the lifting beam 302, multiple limiting posts 304 are vertically installed at the bottom of the lifting beam 302. The limiting posts 304 and the guide holes corresponding to the bottom wall of the groove 301 form a sliding engagement structure. This structure can limit the direction of movement of the lifting beam 302, prevent it from deviating during the lifting process, and ensure the stable operation of the support mechanism 3.
[0040] In addition, this fixture also includes a base 4, on which a rotary drive assembly is mounted. The output end of the drive assembly is connected to the bottom of the base 2, and is used to drive the base 2 to rotate around an axis. The rotary drive assembly allows the metal frame of the mobile phone to rotate during processing, facilitating the processing of different parts of the frame and improving processing flexibility and efficiency.
[0041] In this embodiment, during operation:
[0042] Positioning operation: Place the metal frame of the mobile phone on platform 1, start the bidirectional output motor 102, the motor 102 drives the lead screw 103 with opposite threads at both ends to rotate, the lead screw 103 drives the two sets of limiting beams 104 to slide laterally through the thread transmission with the moving block 105, and then pushes the four sets of positioning parts 202 to slide in the guide groove 101 through the connecting rod 201 until the four positioning parts 202 accurately position the four corners of the frame from the inside, completing the rapid positioning operation.
[0043] Support operation: Before drilling or grooving the middle frame, start the air pump on the base 2. The air pump fills the air passage connected to the bottom of the rectangular groove 301 through the hose and air nozzle 305. The gas pushes the lifting beam 302 to rise. The support 303 on the top of the lifting beam 302 rises and supports the inner side wall of the middle frame, providing stable support for the middle frame.
[0044] Processing and Reset: After processing is completed, the air pump evacuates the air circuit system. Under the action of air pressure, the lifting beam 302 descends and the support 303 falls back into the groove 301, making it easy to remove the processed mobile phone metal frame.
[0045] Rotational processing: If different parts of the middle frame need to be processed, start the rotation drive component on the base 4. The drive component drives the base 2 to rotate around the axis, adjusting the middle frame to the appropriate processing position for subsequent processing operations.
[0046] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A quick positioning fixture for a mobile phone metal frame, comprising a platform (1) and a base (2), characterized in that: The platform (1) is rectangular, and four sets of guide grooves (101) are provided through the platform (1). One end of each set of guide grooves (101) converges at the geometric center of the platform (1), and the other end points to the four corners of the rectangle respectively. Each of the four sets of guide grooves (101) is vertically engaged with a sliding connecting rod (201), and the top of the four sets of connecting rods (201) extends to the top of the platform (1) and is fixedly connected to the positioning component (202). The platform (1) has two sets of horizontally sliding limiting beams (104) at its bottom. Each set of limiting beams (104) has a straight limiting groove along its length. A moving block (105) is installed in the middle of the limiting groove. The four sets of connecting rods (201) are divided into two groups, left and right, according to a mirror relationship. The lower ends of the two connecting rods (201) in each group are inserted into the limiting grooves of the corresponding limiting beams (104) and are symmetrically distributed on both sides of the moving block (105). The platform (1) is fixedly equipped with a bidirectional output motor (102) at the bottom. The two ends of the motor (102) are respectively connected to lead screws (103) with opposite screw directions. The two sets of lead screws (103) and their corresponding moving blocks (105) form a threaded transmission pair. The four corners of the base (2) are fixedly connected to the platform (1) by multiple sets of support rods (203).
2. The quick positioning fixture for a mobile phone metal frame according to claim 1, characterized in that, The platform (1) has four sets of support mechanisms (3) evenly distributed on the upper surface edge. Each set of support mechanisms (3) is used to support the corresponding inner wall of the metal frame of the mobile phone.
3. The quick positioning fixture for a mobile phone metal frame according to claim 2, characterized in that, The support mechanism (3) includes: A rectangular groove (301) is formed on the upper surface of the platform (1); A lifting beam (302) is embedded in a groove (301), and an annular sealing rubber ring is provided on the outer side wall of the lifting beam (302) to form a sliding sealing structure with the inner side wall of the groove (301); Four sets of air nozzles (305) are installed on the side wall of the platform (1). Each air nozzle (305) is sealed and connected to the bottom of the corresponding groove (301) through an air passage. An air pump is installed on the base (2), and the air pump is connected to four sets of air nozzles (305) through four sets of hoses to form an air circuit control system. The top of the lifting beam (302) is evenly distributed with multiple support members (303), and the lifting function is realized by air circuit control: when inflated, the support member (303) rises and supports the inner side wall of the middle frame, and when deflated, the support member (303) falls back into the groove (301).
4. The quick positioning fixture for a mobile phone metal frame according to claim 3, characterized in that, Multiple limiting posts (304) are vertically arranged at the bottom of the lifting beam (302), and the limiting posts (304) and the guide holes corresponding to the bottom wall of the groove (301) form a sliding snap-fit structure.
5. The quick positioning fixture for a mobile phone metal frame according to claim 1, characterized in that, It also includes a base (4), on which a rotation drive assembly is provided. The output end of the drive assembly is connected to the bottom of the base (2) for driving the base (2) to rotate around an axis.