Clamping jig for assembling USB flash disk
By designing a clamping fixture for USB flash drive assembly with a detachable moving stage and flipping stage combination structure, the problem of USB interface misalignment in the assembly of integrated USB flash drive shells in traditional devices is solved, achieving efficient and accurate USB flash drive assembly, reducing the defect rate and floor space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN KEXIN PRECISION ELECTRONICS CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies make it difficult to automate the assembly of integrated USB flash drive casings, and traditional devices have complex structures and large footprints, resulting in a high rate of misalignment and defective USB interfaces.
A clamping fixture for assembling USB flash drives was designed. It adopts a combination structure of a separable moving stage and a flipping stage, combined with a limiting groove and a clamping structure. The electric slide drive enables the USB flash drive motherboard and USB interface to be quickly and accurately positioned. The rubber sleeve and arc-shaped pressure arm force-increasing structure are used for clamping to prevent the USB interface from being misaligned.
It enables rapid and accurate assembly of the integrated USB flash drive casing, reduces the defect rate of misaligned USB interfaces, reduces floor space, and improves production efficiency and quality.
Smart Images

Figure CN224274835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of USB flash drive assembly technology, specifically a clamping fixture for USB flash drive assembly. Background Technology
[0002] A USB flash drive is a portable storage device. Its structure mainly includes a casing, a motherboard, and a USB interface that is electrically connected to the motherboard and exposed on the outside of the casing.
[0003] The outer casings of USB flash drives are generally divided into two types: top and bottom cover type and one-piece type. Currently, top and bottom cover type flash drives are mostly assembled using robotic arms or semi-automated devices, while some one-piece type flash drives require manual assembly by holding the USB interface and inserting the motherboard into the glued casing. Manually assembled flash drives are prone to uneven force, which can cause the USB interface to become misaligned, resulting in substandard appearance.
[0004] A search revealed an automatic card USB flash drive assembly device in patent application publication number CN103846859B. This device includes a card transporting device for sequentially moving card USB flash drive casings from one station to the next along the process direction; a card pushing device for loading multiple card USB flash drive casings and sequentially pushing them onto the card transporting device; a top-blowing device for opening the card USB flash drive cover; a dispensing device for automatically dispensing adhesive onto the opened card USB flash drive cover; a chip loading device for automatically installing chips into the card USB flash drive cover; a correcting and pressing device for correcting and pressing the chips within the cover; a closing device for automatically closing the cover of the card USB flash drive with the installed chips; and a control device for controlling the operation of the entire device. This automatic card USB flash drive assembly device enables automated assembly of card USB flash drives, thereby improving efficiency, saving production costs, and ensuring production quality.
[0005] Although the device can automatically assemble USB flash drives, its pushing structure and chip correction and clamping structure occupy a large area, and the device structure is only suitable for assembling USB flash drive shells with separate top and bottom covers, not for assembling integrated shells. Utility Model Content
[0006] The purpose of this utility model is to provide a clamping fixture for assembling a USB flash drive. By setting a limiting platform, it provides support for the USB flash drive motherboard and USB interface. The limiting platform is composed of two parts: a moving platform and a flipping platform. The moving platform cooperates with the clamping structure to clamp the USB interface. The flipping platform provides quick positioning when the USB flash drive motherboard is placed manually. During assembly, the flipping platform detaches from the USB flash drive motherboard, making it easier for the moving platform to insert the USB flash drive into the USB flash drive socket, thus realizing the rapid assembly of the integrated USB flash drive shell.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a clamping fixture for assembling a USB flash drive, comprising a base, a fixing platform for supporting the casing of the USB flash drive fixed at one end of the upper surface of the base, a positioning structure for positioning the casing of the USB flash drive provided inside the fixing platform, a limiting platform for limiting the USB flash drive motherboard and the USB flash drive USB interface provided at the other end of the upper surface of the base, and an electric slide for driving the limiting platform to move above the base;
[0008] The limiting platform includes a movable platform for limiting the USB interface of the USB flash drive and a flip platform for supporting the motherboard of the USB flash drive. The bottom of the movable platform is equipped with a rotating structure that drives the flip platform to flip, and the top of the movable platform is equipped with a clamping structure that presses the USB interface of the USB flash drive.
[0009] The clamping structure includes a pressure roller, a first limiting groove for limiting the USB interface, and a drive structure for driving the pressure roller to rotate.
[0010] Preferably, the drive structure includes a bracket and a drive motor. The drive motor is fixed to one side of the bracket by screws. The bracket is fixedly connected to the moving platform. A rotating shaft is rotatably connected inside the bracket. The rotating shaft is fixedly connected to the output end of the drive motor. A pressure arm is fixed to the outer wall of the rotating shaft. The bottom end of the pressure arm is fixedly connected to the pressure roller.
[0011] Preferably, the pressure arm is arc-shaped, the outer wall of the pressure roller is bonded with a rubber sleeve, and the first limiting groove is linearly arranged on the upper surface of the moving table.
[0012] Preferably, the positioning structure includes a USB flash drive holder, which is fixedly connected to a mounting platform by screws. A vacuum suction cup for adsorbing the USB flash drive casing is installed at the bottom of the USB flash drive holder, and a pipe communicating with the vacuum suction cup is provided on one side of the USB flash drive holder.
[0013] Preferably, the rotating structure includes a rotating rod, and the lower surface of the moving platform is provided with a clearance groove for providing an installation position for the rotating rod. The rotating rod is rotatably connected in the clearance groove. A rotating motor is installed on one side of the moving platform, and the output end of the rotating motor is fixedly connected to one end of the rotating rod. A connecting plate is fixed to the bottom of the flipping platform by screws, and one end of the connecting plate is fixedly connected to the outer wall of the rotating rod.
[0014] Preferably, the upper surface of the flipping table is provided with a plurality of second limiting grooves, the end of the second limiting groove near the first limiting groove is open, and the lower surface of the base is provided with a through groove to prevent the flipping table from interfering with the position of the base when it flips.
[0015] Preferably, the electric slide is provided in two sets, and the two ends of the moving platform are respectively fixedly connected to the slides of the two sets of electric slides.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This utility model utilizes a detachable moving stage and flipping stage combination structure. The first and second limiting grooves cooperate to quickly limit the USB flash drive motherboard and USB interface, while the pressure roller presses the USB interface firmly. This ensures both quick and accurate clamping of the USB interface and stable support for the USB flash drive motherboard. The entire structure is moved by an electric slide, reducing the footprint compared to traditional split-type pushing mechanisms. The flipping stage uses a rotating rod to flip and detach from the USB flash drive motherboard, freeing up space for subsequent insertion and solving the spatial interference problem caused by traditional fixed limiting structures.
[0018] 2. The pressure roller of this utility model is covered with a rubber sleeve, and the lever force-increasing structure of the arc-shaped pressure arm can ensure that the USB interface is not displaced while avoiding surface indentations caused by the metal pressure head, thereby reducing the interface misalignment defect rate. Attached Figure Description
[0019] Figure 1 This is an isometric drawing of this utility model;
[0020] Figure 2 This is a schematic diagram of the rotating structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the clamping structure of this utility model;
[0022] Figure 4 This is a schematic diagram showing the location of the through groove in this utility model.
[0023] In the diagram: 1. Base; 2. Fixed platform; 3. Positioning structure; 4. Limiting platform; 5. Electric slide; 401. Moving platform; 402. Tilting platform; 6. Rotating structure; 7. Clamping structure; 701. Pressure roller; 702. First limiting groove; 703. Bracket; 704. Drive motor; 705. Rotating shaft; 706. Pressure arm; 707. Rubber sleeve; 301. USB flash drive holder; 302. Vacuum suction cup; 303. Pipe; 601. Rotating rod; 602. Clearing groove; 603. Rotating motor; 604. Connecting plate; 605. Second limiting groove; 606. Through groove. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-4 This utility model provides a technical solution: a clamping fixture for assembling a USB flash drive, including a base 1, a fixing platform 2 for supporting the casing of the USB flash drive is fixed at one end of the upper surface of the base 1, a positioning structure 3 for positioning the casing of the USB flash drive is provided inside the fixing platform 2, a limiting platform 4 for limiting the USB flash drive motherboard and the USB flash drive USB interface is provided at the other end of the upper surface of the base 1, and an electric slide 5 for driving the limiting platform 4 to move is provided above the base 1;
[0026] Two sets of electric slides 5 synchronously drive the moving stage 401 to move the entire assembly, pushing the USB flash drive motherboard and USB interface from the initial workstation to the assembly position with the USB flash drive casing. The integrated slide design avoids the complex transmission links of traditional separate pushing mechanisms, reducing the lateral space occupied.
[0027] The limiting platform 4 includes a moving platform 401 that limits the USB interface of the flash drive and a flipping platform 402 that supports the motherboard of the flash drive. The bottom of the moving platform 401 is equipped with a rotating structure 6 that drives the flipping platform 402 to flip. The top of the moving platform 401 is provided with a clamping structure 7 that presses the USB interface of the flash drive.
[0028] The first limiting slot 702, linearly arranged on the moving stage 401, engages with both sides of the USB interface, restricting its horizontal freedom of movement; the second limiting slot 605 of the flip stage 402 has an open end design, supporting the edge of the USB flash drive motherboard from below, forming vertical support. Together, these two elements achieve coaxial alignment between the interface and the motherboard.
[0029] The clamping structure 7 includes a pressure roller 701, a first limiting groove 702 for limiting the USB interface, and a driving structure for driving the pressure roller 701 to rotate.
[0030] The drive structure includes a bracket 703 and a drive motor 704. The drive motor 704 is fixed to one side of the bracket 703 by screws. The bracket 703 is fixedly connected to the moving platform 401. A rotating shaft 705 is rotatably connected inside the bracket 703. The rotating shaft 705 is fixedly connected to the output end of the drive motor 704. A pressure arm 706 is fixed to the outer wall of the rotating shaft 705. The bottom end of the pressure arm 706 is fixedly connected to the pressure roller 701.
[0031] The drive motor 704 drives the arc-shaped pressure arm 706 downward via the rotating shaft 705, amplifying the driving force using the lever principle, so that the pressure roller 701 at the end of the pressure arm 706 presses the USB interface tightly. The pressure roller 701 is covered with a rubber sleeve 707, which absorbs local stress through elastic deformation when pressing the USB interface, avoiding direct metal contact that could cause indentations or deformation on the interface surface, while also increasing friction to prevent the interface from slipping.
[0032] The pressure arm 706 is arc-shaped, and the outer wall of the pressure roller 701 is glued with a rubber sleeve 707. The first limiting groove 702 is linearly arranged on the upper surface of the moving table 401.
[0033] The positioning structure 3 includes a USB flash drive holder 301, which is fixedly connected to the mounting platform 2 by screws. A vacuum suction cup 302 for adsorbing the USB flash drive shell is installed at the bottom of the USB flash drive holder 301, and a pipe 303 communicating with the vacuum suction cup 302 is provided on one side of the USB flash drive holder 301.
[0034] After the USB flash drive casing is placed on the USB flash drive holder 301, the vacuum suction cup 302 is connected to a vacuum pump through the pipe 303 to generate negative pressure, which tightly adheres the bottom of the casing to the surface of the USB flash drive holder 301, preventing the casing from shifting during the assembly process.
[0035] The rotating structure 6 includes a rotating rod 601. The lower surface of the moving platform 401 is provided with a clearance groove 602 to provide an installation position for the rotating rod 601. The rotating rod 601 is rotatably connected in the clearance groove 602. A rotating motor 603 is installed on one side of the moving platform 401. The output end of the rotating motor 603 is fixedly connected to one end of the rotating rod 601. A connecting plate 604 is fixed to the bottom of the flipping platform 402 by screws. One end of the connecting plate 604 is fixedly connected to the outer wall of the rotating rod 601.
[0036] The upper surface of the flipping table 402 is provided with a plurality of second limiting grooves 605, and the end of the second limiting groove 605 near the first limiting groove 702 is open. The lower surface of the base 1 is provided with a through groove 606 to prevent the flipping table 402 from interfering with the position of the base 1 when it flips.
[0037] When the USB flash drive motherboard arrives at the assembly position with the moving stage 401, the rotating motor 603 drives the rotating rod 601 to rotate, and through the connecting plate 604, the flipping stage 402 flips downward around the axis of the rotating rod 601, so that the second limiting groove 605 is separated from the motherboard, making room for the subsequent operation of inserting the motherboard into the shell.
[0038] It should be noted that the second limiting groove 605 is used to limit the two sides of the USB flash drive motherboard. When the USB flash drive motherboard is manually placed in the first limiting groove 702 and the second limiting groove 605, the USB interface at one end of the USB flash drive motherboard should be manually pressed against one end of the first limiting groove 702, and the end of the USB flash drive motherboard away from the USB interface should not be pressed against the inner wall of the second limiting groove 605, so as to avoid the tail end of the USB flash drive motherboard being scratched when the flip table 402 flips.
[0039] The electric slide table 5 is provided in two sets, and the two ends of the moving platform 401 are respectively fixedly connected to the slide table of the two sets of electric slide tables 5.
[0040] When in use, manually place the USB flash drive shell with adhesive coating on both sides of the inner cavity onto the USB flash drive holder 301. The vacuum suction cup 302 is connected to a vacuum pump through the pipe 303 to generate negative pressure, which tightly adsorbs the bottom of the shell onto the surface of the USB flash drive holder 301.
[0041] Place the USB flash drive motherboard in the first limiting slot 702 and the second limiting slot 605, manually press the USB interface at one end of the USB flash drive motherboard against one end of the first limiting slot 702, and do not press the end of the USB flash drive motherboard away from the USB interface against the inner wall of the second limiting slot 605, so as to avoid the tail end of the USB flash drive motherboard being scratched when the flip table 402 flips.
[0042] When the drive motor 704 starts, the rotating shaft 705 rotates, causing the arc-shaped pressure arm 706 to press down, so that the pressure roller 701 at the end of the pressure arm 706 presses against the USB interface. The rubber sleeve 707 covering the pressure roller 701 is in close contact with the upper surface of the USB interface, thereby positioning the USB interface and releasing the pressure force of the hand on the USB flash drive motherboard.
[0043] Start the electric slide 5 to move the moving stage 401 toward the USB flash drive holder 301. When the USB flash drive motherboard reaches the assembly position with the moving stage 401, the rotating motor 603 drives the rotating rod 601 to rotate. Through the connecting plate 604, the flipping stage 402 flips downward around the axis of the rotating rod 601, so that the second limiting groove 605 separates from the motherboard. The electric slide 5 drives the moving stage 401 to continue to move forward and insert the USB flash drive motherboard into the outer shell. The two sides of the USB flash drive motherboard contact the two sides of the glued inner cavity of the USB flash drive outer shell, completing the assembly.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping fixture for assembling a USB flash drive, characterized in that: Includes a base (1), one end of the upper surface of the base (1) is fixed with a fixing platform (2) for supporting the casing of the USB flash drive, the fixing platform (2) is provided with a positioning structure (3) for positioning the casing of the USB flash drive, the other end of the upper surface of the base (1) is provided with a limiting platform (4) for limiting the USB flash drive motherboard and the USB flash drive USB interface, and an electric slide (5) for driving the limiting platform (4) to move is provided above the base (1); The limiting platform (4) includes a moving platform (401) for limiting the USB interface of the USB flash drive and a flipping platform (402) for supporting the motherboard of the USB flash drive. The bottom of the moving platform (401) is equipped with a rotating structure (6) for driving the flipping platform (402) to flip. The top of the moving platform (401) is provided with a clamping structure (7) for pressing the USB interface of the USB flash drive. The clamping structure (7) includes a pressure roller (701), a first limiting groove (702) for limiting the USB interface, and a driving structure for driving the pressure roller (701) to rotate.
2. The clamping jig for assembling a U disk according to claim 1, wherein: The drive structure includes a bracket (703) and a drive motor (704). The drive motor (704) is fixed to one side of the bracket (703) by screws. The bracket (703) is fixedly connected to the moving platform (401). A rotating shaft (705) is rotatably connected inside the bracket (703). The rotating shaft (705) is fixedly connected to the output end of the drive motor (704). A pressure arm (706) is fixed to the outer wall of the rotating shaft (705). The bottom end of the pressure arm (706) is fixedly connected to the pressure roller (701).
3. The clamping jig for assembling a U disk according to claim 2, wherein: The pressure arm (706) is arc-shaped, and the outer wall of the pressure roller (701) is glued with a rubber sleeve (707). The first limiting groove (702) is linearly arranged on the upper surface of the moving table (401).
4. The clamping jig for assembling a U disk according to claim 3, wherein: The positioning structure (3) includes a USB flash drive holder (301), which is fixedly connected to the fixed platform (2) by screws. A vacuum suction cup (302) for adsorbing the USB flash drive shell is installed at the bottom of the USB flash drive holder (301), and a pipe (303) communicating with the vacuum suction cup (302) is provided on one side of the USB flash drive holder (301).
5. The clamping jig for assembling a U disk according to claim 4, wherein: The rotating structure (6) includes a rotating rod (601). The lower surface of the moving platform (401) is provided with a relief groove (602) to provide an installation position for the rotating rod (601). The rotating rod (601) is rotatably connected in the relief groove (602). A rotating motor (603) is installed on one side of the moving platform (401). The output end of the rotating motor (603) is fixedly connected to one end of the rotating rod (601). A connecting plate (604) is fixed to the bottom of the flipping platform (402) by screws. One end of the connecting plate (604) is fixedly connected to the outer wall of the rotating rod (601).
6. The clamping fixture for assembling a USB flash drive according to claim 1, characterized in that: The upper surface of the flipping table (402) is provided with a plurality of second limiting grooves (605), and the end of the second limiting groove (605) near the first limiting groove (702) is open. The lower surface of the base (1) is provided with a through groove (606) to prevent the flipping table (402) from interfering with the position of the base (1) when it flips.
7. A clamping fixture for assembling a USB flash drive according to claim 1, characterized in that: The electric slide (5) is provided in two sets, and the two ends of the moving platform (401) are respectively fixedly connected to the slides of the two sets of electric slides (5).