Mobile phone mainboard screw locking jig

Abstract

The utility model provides a mobile phone mainboard screw locking jig. The mobile phone mainboard screw locking jig comprises a fixed base, a supporting frame, a clamping assembly and a driving device. The clamping assembly comprises a containing cavity, a plurality of first guide holes and a plurality of second guide holes are formed in the clamping assembly, the first guide holes vertically penetrate through the containing cavity from the upper surface of the clamping assembly, and the second guide holes vertically penetrate through the containing cavity from the lower surface of the clamping assembly; the support frame is fixed on the upper surface of the fixed base; the clamping assembly is arranged on the supporting frame through a rotating shaft. And the driving device is in driving connection with the rotating shaft, the driving device is in driving connection with the clamping assembly, and the lower surface of the clamping assembly faces the upper surface of the fixed base or the upper surface of the clamping assembly faces the upper surface of the fixed base by driving the clamping assembly to rotate with the rotating shaft as the center. According to the utility model, the screw locking operation of the mobile phone mainboard is greatly facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment manufacturing, and more specifically, to a screw-locking fixture for mobile phone motherboards. Background Technology

[0002] In the mobile phone manufacturing process, a large number of screw fastening operations are required on the motherboard. Currently, most screw fastening fixtures can only provide simple fixation for the motherboard. When screw fastening operations are required on different sides of the motherboard, the motherboard needs to be manually flipped and repositioned. This is not only cumbersome and inefficient, but also prone to inaccurate screw fastening positions, affecting product quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a screw-locking fixture for mobile phone motherboards, addressing the cumbersome operation of screwing on different sides of the motherboard.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a screw-locking fixture for a mobile phone motherboard, including a fixed base, a support frame, a clamping assembly, and a driving device; the clamping assembly includes an upper surface and a lower surface that are parallel to each other and a receiving cavity located between the upper surface and the lower surface for accommodating the mobile phone motherboard, and the clamping assembly is provided with a plurality of first guide holes and a plurality of second guide holes, the first guide holes corresponding to the screw holes on the upper surface of the mobile phone motherboard in the receiving cavity and penetrating vertically from the upper surface of the clamping assembly into the receiving cavity, and the second guide holes corresponding to the screw holes on the lower surface of the mobile phone motherboard in the receiving cavity and penetrating vertically from the lower surface of the clamping assembly into the receiving cavity;

[0005] The support frame is fixed to the upper surface of the fixed base; the clamping assembly is mounted on the support frame via a rotating shaft arranged along a first direction, which is parallel to the upper surface of the fixed base; the driving device is fixed to the support frame and drivenly connected to the clamping assembly, and the driving device drives the clamping assembly to rotate around the rotating shaft, so that the lower surface of the clamping assembly faces the upper surface of the fixed base or the upper surface of the clamping assembly faces the upper surface of the fixed base.

[0006] As a further improvement of this utility model, the clamping assembly includes a fixture base plate and a fixture cover plate. The fixture base plate and the fixture cover plate are hinged together by a plurality of hinges arranged along a first direction via a rotation axis. The lower surface of the fixture base plate constitutes the lower surface of the clamping assembly, and the upper surface of the fixture cover plate constitutes the upper surface of the clamping assembly.

[0007] The accommodating cavity is formed by a groove located on the upper surface of the fixture base plate and adapted to the shape and size of the mobile phone motherboard, or the accommodating cavity is formed by combining a first groove located on the lower surface of the fixture cover plate and a second groove located on the upper surface of the fixture base plate.

[0008] As a further improvement of this utility model, the distance between the rotating shaft and the upper surface of the fixed base is greater than half the width of the clamping assembly; the sides of the fixture base plate and fixture cover plate opposite to the hinge are respectively provided with buckles and hooks, and after the mobile phone motherboard is placed into the receiving cavity, the fixture base plate and fixture cover plate are locked together by the buckles and hooks.

[0009] As a further improvement of this utility model, the edge of the fixture cover plate opposite to the hinge has a number of locking blocks, and the locking blocks protrude from the lower surface of the fixture cover plate; the edge of the fixture base plate opposite to the hinge has a number of notches, and when the fixture cover plate is fastened to the fixture base plate, the locking blocks on the fixture cover plate are respectively embedded in the notches on the fixture base plate.

[0010] As a further improvement of this utility model, both the fixture base plate and the fixture cover plate are rectangular parallelepiped; the rotating shaft is respectively connected to two end faces of the fixture base plate perpendicular to the first direction, and the distance between the rotating shaft and the two end faces of the fixture base plate perpendicular to the second direction is equal, and the second direction is perpendicular to the first direction.

[0011] As a further improvement of this utility model, the support frame includes a first support plate and a second support plate, the first support plate and the second support plate are respectively fixed on the upper surface of the fixed base, and the clamping assembly is installed between the first support plate and the second support plate.

[0012] As a further improvement of this utility model, the driving device includes a rotary cylinder, which is fixed to the outer wall of the second support plate, and the rotary table of the rotary cylinder is drivenly connected to the rotating shaft.

[0013] As a further improvement of this utility model, the mobile phone motherboard screw-locking fixture also includes a turntable, which is installed between the clamping assembly and the rotary table of the rotary cylinder and rotates under the drive of the rotary cylinder. The turntable has a protruding limiting block on its outer periphery. The inner wall of the second support plate is fixed with two limiting members, which are located on both sides of the turntable. By blocking the limiting block of the turntable, the lower surface of the clamping assembly faces the upper surface of the fixed base or the upper surface of the clamping assembly faces the upper surface of the fixed base.

[0014] As a further improvement of this utility model, each of the limiting components includes a transverse plate, an adjusting nut, and a bolt. The transverse plate is vertically fixed to the inner wall of the second support plate, and the bolt is assembled to the transverse plate by the adjusting nut and its height protruding from the transverse plate is adjusted by the adjusting nut.

[0015] As a further improvement of this utility model, the first guide hole and the second guide hole respectively include a columnar section adjacent to the accommodating cavity and an open section away from the accommodating cavity.

[0016] The present invention has the following beneficial effects: by using a driving device to flip the clamping component holding the mobile phone motherboard, and by setting a first guide hole and a second guide hole on the upper and lower surfaces of the clamping component respectively, the flipping operation of the mobile phone motherboard can be automatically realized and the screw alignment can be facilitated, thereby greatly facilitating the screw fastening operation of the mobile phone motherboard. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the screw-locking fixture for a mobile phone motherboard provided in this embodiment of the utility model.

[0018] Figure 2 This is another structural schematic diagram of the screw-locking fixture for mobile phone motherboards provided in this embodiment of the utility model.

[0019] Figure 3 This is another structural schematic diagram of the screw-locking fixture for mobile phone motherboards provided in this embodiment of the utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] like Figures 1-3 The diagram shows a structural schematic of a mobile phone motherboard screw-locking fixture provided in this embodiment of the invention. This fixture can be used in mobile phone production equipment and, in conjunction with an electric screwdriver, to perform screw-locking operations on two surfaces of the mobile phone motherboard. The mobile phone motherboard screw-locking fixture of this embodiment includes a fixed base 10, a support frame, a clamping assembly 30, and a driving device 40. The fixed base 10 can be made of a metal plate. The fixed base 10 allows the mobile phone motherboard screw-locking fixture to be placed on an operating platform or fixed to the frame of automated production equipment, ensuring the stability of the entire fixture during use. The clamping assembly 30 and the driving device 40 are respectively fixed above the fixed base 10 by the support frame, thereby enabling the flipping operation of the mobile phone motherboard.

[0022] The aforementioned clamping assembly 30 includes an upper surface and a lower surface that are parallel to each other, and a receiving cavity (not shown in the figure) located between the upper and lower surfaces for accommodating the mobile phone motherboard. Furthermore, the clamping assembly 30 is provided with a plurality of first guide holes 311 and a plurality of second guide holes 321, wherein the first guide holes 311 correspond to the screw holes on the upper surface of the mobile phone motherboard within the receiving cavity and penetrate vertically through the upper surface of the clamping assembly 30 into the receiving cavity; the second guide holes 321 correspond to the screw holes on the lower surface of the mobile phone motherboard within the receiving cavity and penetrate vertically through the lower surface of the clamping assembly 30 into the receiving cavity. Those skilled in the art will understand that, to prevent the mobile phone motherboard from moving within the receiving cavity during screw tightening, the shape and size of the receiving cavity are preferably adapted to the shape and size of the mobile phone motherboard. The first guide hole 311 and the second guide hole 321 are adapted to the shape and size of the screws to be fastened to the motherboard of the mobile phone. That is, when fastening the screws, the screws can be pressed down onto the surface of the motherboard inside the receiving cavity along the first guide hole 311 and the second guide hole 321. In particular, when screws of different sizes need to be fastened to the surface of the motherboard of the mobile phone, the dimensions of the first guide hole 311 and the second guide hole 321 can be different.

[0023] The aforementioned support frame is fixed to the upper surface of the fixed base 10. The clamping assembly 30 is mounted to the support frame via a rotating shaft 51, which rotates along a first direction (e.g., ...). Figure 1 As indicated by arrow X in the diagram, the first direction is parallel to the upper surface of the fixed base 10. Furthermore, to ensure that the clamping assembly 30 can rotate along the pivot 51, the distance between the pivot 51 and the upper surface of the fixed base 10 must be greater than the width of the clamping assembly 30 (i.e., the distance between the clamping assembly 30 and the upper surface of the fixed base 10). Figure 1 The dimension (in the opposite direction of the middle arrow Y) is half of the width of the clamping assembly 30 (to improve stability, the pivot 51 is usually fixed at the center of the width direction).

[0024] The driving device 40 is fixed on the support frame and driven to connect with the clamping assembly 30. By driving the clamping assembly 30 to rotate around the pivot, the lower surface of the clamping assembly 30 faces the upper surface of the fixed base 10, or the upper surface of the clamping assembly 30 faces the upper surface of the fixed base 10. That is, the clamping assembly 30 can rotate 180° around the pivot under the drive of the driving device 40, so that the two surfaces of the mobile phone motherboard face upwards in sequence, which makes it easier for the screwdriver above the screw fastening fixture of the mobile phone motherboard to fasten the screws to the upper and lower surfaces of the mobile phone motherboard.

[0025] When using the aforementioned mobile phone motherboard screw-locking fixture to screw onto a mobile phone motherboard, first place the mobile phone motherboard in the receiving cavity of the clamping component 30 and tighten the clamping component 30; when screws need to be tightened in different positions, start the drive device, and the rotating shaft drives the clamping component 30 and the mobile phone motherboard to rotate to a suitable angle; the screw-locking device precisely screws the screws into the screw holes of the mobile phone motherboard through the first guide hole or the second guide hole on the clamping component 30, thus completing the screw-locking operation.

[0026] The aforementioned mobile phone motherboard screw fastening fixture uses a drive device 40 to flip the clamping component 30 holding the mobile phone motherboard. A first guide hole 311 and a second guide hole 321 are respectively provided on the upper and lower surfaces of the clamping component 30. This can automatically realize the flipping operation of the mobile phone motherboard and facilitate screw alignment, thereby greatly facilitating the screw fastening operation of the mobile phone motherboard.

[0027] Specifically, the first guide hole 311 and the second guide hole 321 mentioned above each include a columnar section adjacent to the receiving cavity and an open section away from the receiving cavity. The open section is flared to facilitate the screw entering the first guide hole 311 and the second guide hole 321, while the columnar section allows the screw to be perpendicular to the mobile phone motherboard inside the receiving cavity, which is beneficial for subsequent fastening operations.

[0028] In one embodiment of this utility model, the clamping assembly 30 includes a fixture cover plate 31 and a fixture base plate 32, which are hinged together by a plurality of hinges 33 (the rotation axis of the hinges 33 is arranged along a first direction, that is, the rotation axis of the hinges 33 is parallel to the central axis of the rotating shaft 51), thereby facilitating the assembly of the fixture cover plate 31 and the fixture base plate 32. Furthermore, in the clamping assembly 30, the lower surface of the fixture base plate 32 constitutes the lower surface of the clamping assembly 30, and the upper surface of the fixture cover plate 31 constitutes the upper surface of the clamping assembly 30.

[0029] Accordingly, the receiving cavity for loading the mobile phone motherboard is formed by a groove on the upper surface of the fixture base plate 32. This groove can be adapted to the shape and size of the mobile phone motherboard, that is, the fixture cover plate 31 is generally flat, or has a concave-convex structure adapted to the shape of the surface of the mobile phone motherboard. Alternatively, the receiving cavity for loading the mobile phone can be formed by combining a first groove on the lower surface of the fixture cover plate 31 and a second groove on the upper surface of the fixture base plate 32. Accordingly, after the mobile phone motherboard is installed into the clamping assembly 30, a part of the mobile phone motherboard is located in the first groove and another part is located in the second groove. In particular, to ensure that the mobile phone motherboard is stably fixed in the receiving groove, the bottom walls of the aforementioned grooves, the first groove, and the second groove can also have a concave-convex structure adapted to the surface shape of the mobile phone motherboard, as well as a positioning structure for positioning the mobile phone motherboard, etc., which will not be described in detail here.

[0030] Of course, in practical applications, the clamping component 30 can also adopt other clamping structures commonly used in the art, as long as it can stably fix the mobile phone motherboard and expose the screw fastening positions on the surface of the mobile phone motherboard under the screwdriver.

[0031] Combination Figure 2 , Figure 3 As shown, in one embodiment of this utility model, the fixture base plate 32 and fixture cover plate 31 are provided with buckles 34 and hooks 35. The buckles 34 and hooks 35 are respectively fixed to the sides of the fixture cover plate 31 and fixture base plate 32 opposite to the hinge 33. After the mobile phone motherboard is placed into the receiving cavity, the fixture base plate 32 and fixture cover plate 31 are locked together by the buckles 34 and hooks 35. The buckles 34 and hooks 35 are easy to operate and have a stable connection, which can ensure that the mobile phone motherboard in the receiving cavity will not shift during the flipping process.

[0032] Specifically, the buckle 34 can be fixed to either the fixture base plate 32 or the fixture cover plate 31, while the hook 35 is fixed to the other one. Of course, in practical applications, the fixture base plate 32 and the fixture cover plate 31 can also be locked together by other existing locking structures, as long as it can be ensured that the mobile phone motherboard inside the accommodating cavity will not shift during the flipping process.

[0033] In one embodiment of this utility model, the edge of the fixture cover plate 31 opposite to the hinge 33 has a plurality of locking blocks 312, and these locking blocks 312 protrude from the lower surface of the fixture cover plate 31. Correspondingly, the edge of the fixture base plate 32 opposite to the hinge 33 has a plurality of notches, and when the fixture cover plate 31 is fastened to the fixture base plate 32, the locking blocks 312 on the fixture cover plate 31 are respectively embedded in the notches on the fixture base plate 32. With the above structure, not only can the accurate alignment of the fixture cover plate 31 and the fixture base plate 32 be guaranteed when they are fastened, but also the mobile phone motherboard in the accommodating cavity will not be damaged or shaken due to relative sliding after the fixture cover plate 31 and the fixture base plate 32 are fastened.

[0034] In one embodiment of this utility model, both the fixture base plate 32 and the fixture cover plate 31 are rectangular parallelepipeds. The rotating shaft 51 is connected to two end faces of the fixture base plate 32 perpendicular to the first direction, and the distance between the rotating shaft 51 and the two end faces of the fixture base plate 32 perpendicular to the second direction is equal. Since most mobile phone motherboards are rectangular, the rectangular fixture base plate 32 and fixture cover plate 31 can reduce the size of the clamping assembly 30 while ensuring the mobile phone motherboard is fixed.

[0035] In one embodiment of this utility model, the support frame includes a first support plate 21 and a second support plate 22, which are respectively fixed to the upper surface of the fixed base 10. A clamping assembly 30 is installed between the first support plate 21 and the second support plate 22. Specifically, the first support plate 21 and the second support plate 22 can be vertically fixed to the fixed base 10, and in order to improve the structural strength, ribs 23 can be added between the inner sides of the first support plate 21 and the second support plate 22 and the fixed base 10.

[0036] In one embodiment of this utility model, the driving device 40 includes a rotary cylinder, which is fixed to the outer wall of the second support plate 22, and the rotary table of the rotary cylinder is driven to the rotating shaft. The rotary cylinder drives the internal piston or vane by the pressure of compressed air, causing the output shaft to rotate. In this embodiment, the rotary cylinder drives the clamping assembly 30 to rotate 180° around the rotating shaft 51 when compressed air is introduced, and resets when the air is released (i.e., rotates 180° in the opposite direction). The specific structure of the rotary cylinder is conventional technology in the art and will not be described in detail here.

[0037] Because the rotation angle of the rotary cylinder has a certain error, the aforementioned mobile phone motherboard screw-locking fixture also includes a turntable 52 (which can also be regarded as a "rotating shaft"). The turntable 52 is installed between the clamping assembly 30 and the rotary cylinder and rotates under the drive of the rotary cylinder, thereby driving the clamping assembly 30 to rotate synchronously. Specifically, the second support plate 22 has a through hole, and the rotating platform of the rotary cylinder passes through the through hole from the outside of the second support plate 22 to the inside of the second support plate 22. One side of the turntable 52 is fixed to the rotating platform of the rotary cylinder (for example, by screws); the other side of the turntable 52 is fixed to the clamping assembly 30 (for example, the fixture base plate 32).

[0038] The turntable 52 has a protruding limiting block 521 on its outer periphery. Two limiting members 53 are fixed to the inner wall of the second support plate 22. These two limiting members 53 are located on both sides of the turntable 52 (on both sides in the second direction), and by blocking the limiting block 521 on the turntable 52, they either prevent the lower surface of the clamping assembly 30 from facing the upper surface of the fixed base 10, or prevent the upper surface of the clamping assembly 30 from facing the upper surface of the fixed base 10. That is, when the limiting block 521 rotates with the turntable 52 to abut against one of the limiting members 53, the turntable 52 can no longer rotate. Through the cooperation of the limiting member 53 and the limiting block 521, the rotation angle of the clamping assembly 30 is limited, ensuring that the two surfaces of the mobile phone motherboard inside the accommodating cavity face upwards, thus facilitating screw fastening operations.

[0039] Specifically, each limiting member 53 includes a transverse plate 531, an adjusting nut 532, and a bolt 533. The transverse plate 531 is vertically fixed to the inner wall of the second support plate 22. The bolt 533 is assembled to the transverse plate 531 via the adjusting nut 532, and its height protruding from the transverse plate 531 is adjusted by the adjusting nut 532. That is, by adjusting the top height of the bolt 533, the rotation angle of the clamping assembly 30 can be adjusted.

[0040] Of course, in practical applications, the drive unit 40 can also use other power devices, such as motors.

[0041] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A screw-locking fixture for a mobile phone motherboard, characterized in that, The device includes a fixed base, a support frame, a clamping assembly, and a driving device. The clamping assembly includes an upper surface and a lower surface that are parallel to each other, and a receiving cavity located between the upper surface and the lower surface for accommodating the mobile phone motherboard. The clamping assembly is provided with a plurality of first guide holes and a plurality of second guide holes. The first guide holes correspond to the screw holes on the upper surface of the mobile phone motherboard in the receiving cavity and penetrate vertically through the upper surface of the clamping assembly into the receiving cavity. The second guide holes correspond to the screw holes on the lower surface of the mobile phone motherboard in the receiving cavity and penetrate vertically through the lower surface of the clamping assembly into the receiving cavity. The support frame is fixed to the upper surface of the fixed base; the clamping assembly is mounted on the support frame via a rotating shaft arranged along a first direction, which is parallel to the upper surface of the fixed base; the driving device is fixed to the support frame and drivenly connected to the clamping assembly, and the driving device drives the clamping assembly to rotate around the rotating shaft, so that the lower surface of the clamping assembly faces the upper surface of the fixed base or the upper surface of the clamping assembly faces the upper surface of the fixed base.

2. The mobile phone motherboard screw-locking fixture according to claim 1, characterized in that, The clamping assembly includes a fixture base plate and a fixture cover plate. The fixture base plate and the fixture cover plate are hinged together by a plurality of hinges arranged along a first direction via a rotation axis. The lower surface of the fixture base plate constitutes the lower surface of the clamping assembly, and the upper surface of the fixture cover plate constitutes the upper surface of the clamping assembly. The accommodating cavity is formed by a groove located on the upper surface of the fixture base plate and adapted to the shape and size of the mobile phone motherboard, or the accommodating cavity is formed by combining a first groove located on the lower surface of the fixture cover plate and a second groove located on the upper surface of the fixture base plate.

3. The mobile phone motherboard screw-locking fixture according to claim 2, characterized in that, The distance between the rotating shaft and the upper surface of the fixed base is greater than half the width of the clamping assembly; the jig base plate and jig cover plate have buckles and hooks on the sides opposite to the hinge, and after the mobile phone motherboard is placed into the receiving cavity, the jig base plate and jig cover plate are locked together by the buckles and hooks.

4. The mobile phone motherboard screw-locking fixture according to claim 3, characterized in that, The jig cover plate has several locking blocks on the edge opposite to the hinge, and the locking blocks protrude from the lower surface of the jig cover plate; the jig bottom plate has several notches on the edge opposite to the hinge, and when the jig cover plate is fastened to the jig bottom plate, the locking blocks on the jig cover plate are respectively embedded in the notches on the jig bottom plate.

5. The mobile phone motherboard screw-locking fixture according to claim 2, characterized in that, Both the fixture base plate and the fixture cover plate are rectangular parallelepipeds; the rotating shaft is connected to two end faces of the fixture base plate perpendicular to the first direction, and the distance between the rotating shaft and the two end faces of the fixture base plate perpendicular to the second direction is equal, and the second direction is perpendicular to the first direction.

6. The mobile phone motherboard screw-locking fixture according to claim 1, characterized in that, The support frame includes a first support plate and a second support plate, which are respectively fixed to the upper surface of the fixed base, and the clamping assembly is installed between the first support plate and the second support plate.

7. The mobile phone motherboard screw-locking fixture according to claim 6, characterized in that, The driving device includes a rotary cylinder, which is fixed to the outer wall of the second support plate, and the rotary table of the rotary cylinder is drivenly connected to the clamping assembly.

8. The mobile phone motherboard screw-locking fixture according to claim 7, characterized in that, The mobile phone motherboard screw-locking fixture also includes a turntable, which is installed between the clamping assembly and the rotary cylinder's rotating table and rotates under the drive of the rotary cylinder. The turntable has a protruding limiting block on its outer periphery. The inner wall of the second support plate is fixed with two limiting members, which are located on both sides of the turntable. By blocking the limiting block of the turntable, the lower surface of the clamping assembly faces the upper surface of the fixed base, or the upper surface of the clamping assembly faces the upper surface of the fixed base.

9. The mobile phone motherboard screw-locking fixture according to claim 8, characterized in that, Each of the aforementioned limiting components includes a transverse plate, an adjusting nut, and a bolt. The transverse plate is vertically fixed to the inner wall of the second support plate, and the bolt is assembled to the transverse plate by means of the adjusting nut and its height protruding from the transverse plate is adjusted by means of the adjusting nut.

10. The mobile phone motherboard screw-locking fixture according to claim 1, characterized in that, The first guide hole and the second guide hole each include a columnar section adjacent to the accommodating cavity and an open section away from the accommodating cavity.

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