Automatic screw locking machine for locking mobile phone frame

Abstract

This utility model discloses an automatic screw-locking machine for locking mobile phone frames, including a mounting frame, a housing, a screw-locking device, and a product feeding device. The screw-locking device is installed on one side of the mounting frame, and the housing is arranged below the screw-locking device. The product feeding device includes a Y-axis translation mechanism installed on the housing, a Y-axis translation plate connected to the Y-axis translation mechanism, a rotation drive mechanism installed on the Y-axis translation plate, and a rotation plate connected to the rotation drive mechanism. A positioning fixture for carrying the product is also installed on one side of the rotation plate, and a clamping and limiting mechanism for pressing and fixing the product is installed at each end of the rotation plate. A screw feeder is also provided on one side of the housing located on the product feeding device. This utility model realizes automatic feeding and automatic screw-locking of mobile phone frames, greatly improving production efficiency and reducing labor costs.

Description

Technical Field

[0001] This utility model relates to the field of automation technology, and in particular to an automatic screw fastening machine for locking the frame of a mobile phone. Background Technology

[0002] In the mobile phone manufacturing industry, the screw-locking process for mobile phone frames largely relies on manual operation, requiring workers to possess rich experience and precise skills. The mobile phone motherboard needs to be fixed to the mid-frame with multiple tiny screws (such as M0.6-M1.2 specifications). Traditional processes are prone to signal interference due to missing screws or uneven torque. At the same time, they also suffer from problems such as low efficiency, high labor intensity, and unstable screw tightening quality. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic screw-locking machine for locking mobile phone frames. By setting up a product feeding device and a screw-locking device, the automatic feeding and screw-locking processes of mobile phone frames are realized, which greatly improves production efficiency and reduces labor costs. At the same time, a clamping and limiting mechanism is also provided, which can firmly press and fix the mobile phone frame on the positioning fixture to prevent the product from shifting during the screw-locking process, and further ensure the accuracy of screw-locking.

[0004] To achieve the above objectives, the following technical solution is adopted: An automatic screw-locking machine for locking mobile phone frames includes a mounting frame, a housing, a screw-locking device, and a product feeding device. The screw-locking device is installed on one side of the mounting frame, and the housing is arranged below the screw-locking device. The product feeding device includes a Y-axis translation mechanism installed on the housing, a Y-axis translation plate connected to the Y-axis translation mechanism, a rotation drive mechanism installed on the Y-axis translation plate, and a rotation plate connected to the rotation drive mechanism. A positioning fixture for carrying the product is also installed on one side of the rotation plate, and a clamping and limiting mechanism for pressing and fixing the product is installed at each end of the rotation plate. A screw feeder is also provided on one side of the housing located on the product feeding device.

[0005] Furthermore, the rotary drive mechanism includes a mounting plate connected vertically to the Y-axis translation plate, a rotary drive motor mounted on one side of the mounting plate, and a hollow rotary platform arranged on the other side of the mounting plate and connected to the rotary drive motor; the rotary plate is arranged vertically and connected to the hollow rotary platform.

[0006] Furthermore, the clamping and limiting mechanism includes a clamping cylinder mounted on the rotating plate, a connecting rod connected to the output shaft of the clamping cylinder, and a clamping strip mounted on the connecting rod and arranged on one side of the positioning fixture.

[0007] Furthermore, a clamping block is connected to the side of the clamping strip near the positioning fixture, and a buffer pad is provided on one side of the clamping block.

[0008] Furthermore, the screw-locking device includes an X-axis translation mechanism mounted on one side of the mounting bracket, an X-axis translation plate connected to the X-axis translation mechanism, a Z-axis lifting mechanism mounted on the X-axis translation plate, and a Z-axis lifting plate slidably arranged on one side of the X-axis translation plate and connected to the Z-axis lifting mechanism; the screw-locking mechanism is also mounted on the Z-axis lifting plate.

[0009] Furthermore, the screw-locking mechanism includes a suction nozzle fixing block, a first mounting plate installed on one side of the Z-axis lifting plate, a first fixing seat connected to the lower part of one side of the first mounting plate, an electric screwdriver installed on the first fixing seat, and a screwdriver bit connected to the electric screwdriver; the suction nozzle fixing block has an L-shaped structure, with the L-shaped vertical end of the suction nozzle fixing block installed on one side of the Z-axis lifting plate, and the L-shaped horizontal end of the suction nozzle fixing block extending to the lower part of the electric screwdriver; a vacuum suction nozzle is also installed at the bottom of the L-shaped horizontal end of the suction nozzle fixing block, and the lower part of the screwdriver bit is movably inserted into the vacuum suction nozzle.

[0010] Furthermore, a first slide rail is arranged vertically on one side of the Z-axis lifting plate, and a first mounting plate is slidably arranged on the first slide rail; a first connecting block is connected to the upper part of one side of the Z-axis lifting plate, and a first guide rod is connected to the top of the first mounting plate; the upper part of the first guide rod moves through the first connecting block, and a limiting step is provided at the top of the first guide rod; a buffer spring is also sleeved on the outer wall of the first guide rod, and the two ends of the buffer spring abut against the bottom of the first connecting block and the top of the first mounting plate, respectively.

[0011] Furthermore, a clearance hole extending to the bottom of the first mounting plate is provided on one side in the vertical direction; the L-shaped vertical end of the suction nozzle fixing block is arranged in the clearance hole and slidably connected to the first slide rail.

[0012] Furthermore, a first limiting block is connected to each of the two ends of the lower part of one side of the X-axis translation plate, and a buffer rod is connected to each first limiting block; a first limiting plate is also connected to the top of the L-shaped vertical end of the suction nozzle fixing block, and the two ends of the first limiting plate extend upwards towards a buffer rod.

[0013] The beneficial effects of this utility model by adopting the above solution are: This utility model achieves automatic feeding and screw fastening of mobile phone frames by setting up a product feeding device and a screw fastening device, which greatly improves production efficiency and reduces labor costs. At the same time, it is also equipped with a clamping and limiting mechanism, which can firmly press and fix the mobile phone frame on the positioning fixture, prevent the product from shifting during the screw fastening process, and further ensure the accuracy of screw fastening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rotary drive mechanism and the clamping and limiting mechanism of this utility model; Figure 3 This is a schematic diagram of the screw-locking device of this utility model; Figure 4 for Figure 3 Another structural diagram (omitting electric screwdriver); The following are explanations of the labels in the attached diagram: 1. Mounting bracket; 2. Chassis; 3. Screw fastening device; 4. Product feeding device; 5. Screw feeder; 31. X-axis translation mechanism; 32. X-axis translation plate; 33. Z-axis lifting mechanism; 34. Z-axis lifting plate; 35. Screw fastening mechanism; 41. Y-axis translation mechanism; 42. Y-axis translation plate; 43. Rotating plate; 44. Positioning fixture; 45. Mounting vertical plate; 46. Rotary drive motor; 47. Hollow rotating plate 48. Clamping cylinder; 49. Clamping bar; 40. Clamping block; 321. First limiting block; 322. Buffer rod; 323. First limiting plate; 341. First slide rail; 342. First connecting block; 343. First guide rod; 344. Limiting step; 351. Nozzle fixing block; 352. First mounting plate; 353. First fixing seat; 354. Electric screwdriver; 355. Screwdriver bit; 356. Vacuum nozzle. Detailed Implementation

[0015] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Reference Figures 1 to 4 As shown, this utility model provides an automatic screw-locking machine for locking mobile phone frames. In one embodiment, it includes a mounting frame 1, a housing 2, a screw-locking device 3, and a product feeding device 4. The screw-locking device 3 is installed on one side of the mounting frame 1, and the housing 2 is arranged below the screw-locking device 3. The product feeding device 4 includes a Y-axis translation mechanism 41 installed on the housing 2, a Y-axis translation plate 42 connected to the Y-axis translation mechanism 41, a rotation drive mechanism installed on the Y-axis translation plate 42, and a rotation plate 43 connected to the rotation drive mechanism. A positioning fixture 44 for carrying the product is also installed on one side of the rotation plate 43, and a clamping and limiting mechanism for pressing and fixing the product is installed at each end of the rotation plate 43. A screw feeder 5 is also provided on one side of the housing 2 located on the product feeding device 4.

[0017] Continue to refer to Figures 1 to 4As shown, in this embodiment, the mounting frame 1 is a gantry frame, the screw-locking device 3 is installed on the crossbeam of the gantry frame, and the chassis 2 is arranged between the two vertical frames of the gantry frame. The front of the chassis 2 is also equipped with a display screen and related function buttons, and the bottom four corners of the chassis 2 are also equipped with foot cups. In this embodiment, in order to improve work efficiency, two sets of screw-locking device 3, product feeding device 4 and screw feeder 5 (an existing feeder can be used) are provided. The Y-axis translation mechanism 41 can be a linear module. During operation, the product (phone frame) is first placed on the positioning fixture 44 by a person or robot. The clamping and limiting mechanism clamps and fixes the product. Then, the Y-axis translation mechanism 41 drives the product to move to the bottom of the screw-locking device 3. At this time, the screw-locking device 3 has picked up the screw from the screw feeder 5 and locked the screw into the corresponding hole of the product. At the same time, the rotation drive mechanism can drive the product to rotate so that the screw-locking device 3 can lock the product in different positions. It is highly practical.

[0018] In one embodiment, the rotary drive mechanism includes a mounting vertical plate 45 connected vertically to a Y-axis translation plate 42, a rotary drive motor 46 mounted on one side of the mounting vertical plate 45, and a hollow rotary platform 47 arranged on the other side of the mounting vertical plate 45 and connected to the rotary drive motor 46; the rotary plate 43 is arranged vertically and connected to the hollow rotary platform 47. The mounting vertical plate 45 serves as a connection and support, and the hollow rotary platform 47 has a large hollow structure, which facilitates the installation of the rotary plate 43 and can withstand a certain load, ensuring the stability and reliability of the rotation process. Under the drive of the rotary drive motor 46, the mobile phone frame can rotate to adapt to the screw fastening requirements at different positions.

[0019] Meanwhile, the clamping and limiting mechanism includes a clamping cylinder 48 mounted on the rotating plate 43, a connecting rod connected to the output shaft of the clamping cylinder 48, and a clamping strip 49 mounted on the connecting rod and arranged on one side of the positioning fixture 44. The clamping and limiting mechanism utilizes the driving force generated by the clamping cylinder 48 to press the clamping strip 49 against the phone frame on the positioning fixture 44 via the connecting rod, thereby firmly fixing the phone frame to the positioning fixture 44. Furthermore, a clamping block 40 is connected to the side of the clamping strip 49 closest to the positioning fixture 44, and a buffer pad is provided on one side of the clamping block 40. The buffer pad provides cushioning during the clamping process, preventing excessive clamping force from damaging the phone frame.

[0020] In one embodiment, the screw-locking device 3 includes an X-axis translation mechanism 31 mounted on one side of the mounting bracket 1, an X-axis translation plate 32 connected to the X-axis translation mechanism 31, a Z-axis lifting mechanism 33 mounted on the X-axis translation plate 32, and a Z-axis lifting plate 34 slidably arranged on one side of the X-axis translation plate 32 and connected to the Z-axis lifting mechanism 33; a screw-locking mechanism 35 is also mounted on the Z-axis lifting plate 34. In this embodiment, both the X-axis translation mechanism 31 and the Z-axis lifting mechanism 33 are linear modules. Their cooperation drives the screw-locking mechanism 35 to perform translational and lifting movements, enabling the screw-locking mechanism 35 to tighten screws on the product. The screw-locking mechanism 35 includes a suction nozzle fixing block 351, a first mounting plate 352 mounted on one side of the Z-axis lifting plate 34, a first fixing seat 353 connected to the lower part of one side of the first mounting plate 352, an electric screwdriver 354 mounted on the first fixing seat 353, and a screwdriver bit 355 connected to the electric screwdriver 354. The suction nozzle fixing block 351 has an L-shaped structure. The vertical L-shaped end of the suction nozzle fixing block 351 is mounted on one side of the Z-axis lifting plate 34, and the horizontal L-shaped end of the suction nozzle fixing block 351 extends to the lower part of the electric screwdriver 354. A vacuum suction nozzle 356 is also mounted at the bottom of the horizontal L-shaped end of the suction nozzle fixing block 351, and the lower part of the screwdriver bit 355 is movably inserted into the vacuum suction nozzle 356. The screw is picked up by the vacuum nozzle 356, and then the screw is screwed into the screw hole of the phone frame by the electric screwdriver 354 and the screwdriver bit 355.

[0021] Preferably, a first slide rail 341 is arranged vertically on one side of the Z-axis lifting plate 34, and a first mounting plate 352 is slidably arranged on the first slide rail 341; a first connecting block 342 is connected to the upper part of one side of the Z-axis lifting plate 34, and a first guide rod 343 is connected to the top of the first mounting plate 352; the upper part of the first guide rod 343 is arranged to move through the first connecting block 342, and a limiting step 344 is provided on the top of the first guide rod 343; a buffer spring is also sleeved on the outer wall of the first guide rod 343, and the two ends of the buffer spring abut against the bottom of the first connecting block 342 and the top of the first mounting plate 352, respectively. When tightening screws, a buffer spring maintains a certain downward pressure on the electric screwdriver 354, improving screw fastening effect. Furthermore, to enhance structural compactness, a clearance hole extending to the bottom is vertically formed on one side of the first mounting plate 352. The L-shaped vertical end of the suction nozzle fixing block 351 is positioned within the clearance hole and slidably connected to the first slide rail 341. A first limiting block 321 is connected to each end of the lower part of one side of the X-axis translation plate 32, and a buffer rod 322 is attached to each first limiting block 321. A first limiting plate 323 is connected to the top of the L-shaped vertical end of the suction nozzle fixing block 351, and both ends of the first limiting plate 323 extend upwards towards the buffer rod 322. The buffer rod 322 limits the downward stroke of the suction nozzle fixing block 351.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. An automatic screw-fastening machine for fastening the frame of a mobile phone, characterized in that, The system includes a mounting frame, a chassis, a screw-locking device, and a product loading device. The screw-locking device is mounted on one side of the mounting frame, and the chassis is located below the screw-locking device. The product loading device includes a Y-axis translation mechanism mounted on the chassis, a Y-axis translation plate connected to the Y-axis translation mechanism, a rotary drive mechanism mounted on the Y-axis translation plate, and a rotary plate connected to the rotary drive mechanism. A positioning fixture for carrying the product is also mounted on one side of the rotary plate, and a clamping and limiting mechanism for pressing and fixing the product is mounted on each end of the rotary plate. A screw feeder is also provided on one side of the chassis located on the product loading device.

2. The automatic screw-fastening machine for locking mobile phone frames according to claim 1, characterized in that, The rotary drive mechanism includes a mounting plate connected vertically to the Y-axis translation plate, a rotary drive motor mounted on one side of the mounting plate, and a hollow rotary platform arranged on the other side of the mounting plate and connected to the rotary drive motor; the rotary plate is arranged vertically and connected to the hollow rotary platform.

3. The automatic screw-fastening machine for locking mobile phone frames according to claim 2, characterized in that, The clamping and limiting mechanism includes a clamping cylinder mounted on a rotating plate, a connecting rod connected to the output shaft of the clamping cylinder, and a clamping strip mounted on the connecting rod and arranged on one side of the positioning fixture.

4. The automatic screw-fastening machine for locking mobile phone frames according to claim 3, characterized in that, The clamping strip is connected to a clamping block on the side near the positioning fixture, and a buffer pad is provided on one side of the clamping block.

5. The automatic screw-fastening machine for locking mobile phone frames according to claim 1, characterized in that, The screw-locking device includes an X-axis translation mechanism mounted on one side of the mounting bracket, an X-axis translation plate connected to the X-axis translation mechanism, a Z-axis lifting mechanism mounted on the X-axis translation plate, and a Z-axis lifting plate slidably arranged on one side of the X-axis translation plate and connected to the Z-axis lifting mechanism; the screw-locking mechanism is also mounted on the Z-axis lifting plate.

6. The automatic screw-fastening machine for locking mobile phone frames according to claim 5, characterized in that, The screw-locking mechanism includes a suction nozzle fixing block, a first mounting plate installed on one side of the Z-axis lifting plate, a first fixing seat connected to the lower part of one side of the first mounting plate, an electric screwdriver installed on the first fixing seat, and a screwdriver bit connected to the electric screwdriver. The suction nozzle fixing block has an L-shaped structure, with the L-shaped vertical end of the suction nozzle fixing block installed on one side of the Z-axis lifting plate, and the L-shaped horizontal end of the suction nozzle fixing block extending to the lower part of the electric screwdriver. A vacuum suction nozzle is also installed at the bottom of the L-shaped horizontal end of the suction nozzle fixing block, and the lower part of the screwdriver bit is movably inserted into the vacuum suction nozzle.

7. The automatic screw-fastening machine for locking mobile phone frames according to claim 6, characterized in that, A first slide rail is arranged vertically on one side of the Z-axis lifting plate, and a first mounting plate is slidably arranged on the first slide rail; a first connecting block is connected to the upper part of one side of the Z-axis lifting plate, and a first guide rod is connected to the top of the first mounting plate; the upper part of the first guide rod moves through the first connecting block, and a limiting step is provided at the top of the first guide rod; a buffer spring is sleeved on the outer wall of the first guide rod, and the two ends of the buffer spring abut against the bottom of the first connecting block and the top of the first mounting plate, respectively.

8. The automatic screw-fastening machine for locking mobile phone frames according to claim 7, characterized in that, The first mounting plate also has a clearance hole extending to its bottom on one side in the vertical direction; the L-shaped vertical end of the suction nozzle fixing block is arranged in the clearance hole and is slidably connected to the first slide rail.

9. The automatic screw-fastening machine for locking mobile phone frames according to claim 8, characterized in that, The lower two ends of one side of the X-axis translation plate are each connected to a first limiting block, and each first limiting block is also connected to a buffer rod; the top of the L-shaped vertical end of the suction nozzle fixing block is also connected to a first limiting plate, and the two ends of the first limiting plate extend upwards towards a buffer rod.

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