Cam connecting rod rotating mechanism

Abstract

The present invention aims to provide a cam-connecting rod rotating mechanism with eccentric rotation, small space occupation and wide applicability. The present invention includes a base plate, a fixed plate, a driving motor, a floating assembly, a transmission assembly and a rotating plate. The fixed plate is arranged on the base plate, and the driving motor is movably matched with the fixed plate through the floating assembly. The transmission assembly includes a worm, a worm wheel, a connecting block, a pulley and a rotating block. The driving motor, the worm, the worm wheel and the connecting block are sequentially connected in transmission. The end of the worm wheel away from the connecting block is rotatably connected to the base plate. A waist-shaped hole is provided on the connecting block, and the pulley is slidably matched on the waist-shaped hole. The pulley, the rotating block and the rotating plate are sequentially connected in transmission. The present invention is applied to the technical field of electronic product screen detection.

Description

Technical Field

[0001] The invention relates to the technical field of electronic product screen detection, and in particular to a cam connecting rod rotating mechanism. Background Art

[0002] During the production process of electronic products, the screen needs to be tested, such as screen testing and calibration of mobile phones and tablets, touch screen pressure testing, screen scratching testing and other testing processes. The fixture often needs to have a rotation function, and traditional rotating fixtures are generally driven by motors and shafts to rotate. For example, Chinese patent publication number CN210499371U discloses a rotatable fixture. Since the center of the motor and the shaft is on the same straight line as the center line of the fixture, the motor and the shaft in this solution will be higher than the horizontal plane where the straight line is located, occupying a large space and not conducive to docking with external testing organizations. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a cam-connecting rod rotating mechanism which has eccentric rotation, occupies a small space and has wide applicability.

[0004] The technical solution adopted by the present invention is: the present invention includes a base plate, a fixed plate, a driving motor, a floating component, a transmission component and a rotating plate, the fixed plate is arranged on the base plate, the driving motor is movably fitted on the fixed plate through the floating component, the transmission component includes a worm, a worm wheel, a connecting block, a pulley and a rotating block, the driving motor, the worm, the worm wheel and the connecting block are sequentially connected in transmission, the end of the worm wheel away from the connecting block is rotatably connected to the base plate, a waist-shaped hole is opened on the connecting block, the pulley is slidably fitted on the waist-shaped hole, the pulley, the rotating block and the rotating plate are sequentially connected in transmission.

[0005] Furthermore, the bottom plate is provided with two sensors, and the rotating plate is provided with a sensing sheet that cooperates with the two sensors.

[0006] Furthermore, a limit block is provided on the fixed plate, and the limit block is matched with the rotating plate.

[0007] Furthermore, the floating assembly includes two slide rails arranged in parallel on the fixed plate, a mounting plate slidably fitted on the slide rails, and a spring arranged between the mounting plate and the bottom plate, and the drive motor is arranged on the mounting plate.

[0008] Furthermore, the rotating plate is provided with a data connection line, and the data connection line is adapted to the product.

[0009] Furthermore, both ends of the rotating plate are rotatably connected to the base plate via a rotating shaft and a bearing, and the rotating shaft close to the driving motor is connected to the rotating block.

[0010] Furthermore, the rotating plate is provided with a fixing groove adapted to the product, the fixing groove has an opening, the rotating plate is provided with a locking block near the opening, the locking block is provided with a plurality of through holes and a plurality of equal-height screws corresponding to the through holes one by one, the equal-height screws pass through the through holes and are connected to the rotating plate.

[0011] The present invention has the following beneficial effects: the cam-connecting rod rotating mechanism is compact and reliable, and is used in conjunction with a worm gear mechanism to ensure the rotation accuracy of the clamp platform and realize eccentric rotation, which can greatly reduce the distance from the output rotation axis to the structural outer contour of the top of the base plate, so that the top platform of the base plate is as flat as possible, reducing the occupied space and facilitating the docking of external components with the cam-connecting rod rotating mechanism. It can be used in different environments and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 It is a structural schematic diagram of another aspect of the present invention;

[0014] Figure 3 It is a structural schematic diagram of the driving motor, the floating assembly and the transmission assembly. DETAILED DESCRIPTION

[0015] like Figures 1 to 3 As shown, in the present embodiment, the cam-connecting rod rotating mechanism comprises a base plate 1, a fixed plate 2, a driving motor 3, a floating assembly 4, a transmission assembly 5 and a rotating plate 6, the fixed plate 2 is arranged on the base plate 1, the driving motor 3 is movably fitted on the fixed plate 2 through the floating assembly 4, the transmission assembly 5 comprises a worm 7, a worm wheel 8, a connecting block 9, a pulley 10 and a rotating block 11, the driving motor 3, the worm 7, the worm wheel 8 and the connecting block 9 are sequentially connected in transmission, the end of the worm wheel 8 away from the connecting block 9 is rotatably connected to the base plate 1, a waist-shaped hole 12 is provided on the connecting block 9, the pulley 10 is slidably fitted on the waist-shaped hole 12, the pulley 10, the rotating block 11 and the rotating plate 6 are sequentially connected in transmission.

[0016] It can be seen from the above scheme that the driving motor 3 drives the connecting block 9 to rotate through the worm 7 and the worm wheel 8, so that the pulley 10 slides in the waist-shaped hole 12, and then the pulley 10 drives the rotating block 11 to rotate, so that the rotating plate 6 rotates with the rotating block 11, so that there is a certain angle between the rotating plate 6 and the base plate 1, and by placing the product on the rotating plate 6, the product can rotate with the rotating plate 6; compared with the traditional transmission method, by placing the driving motor 3 and the transmission assembly 5 downward, the volume of the driving motor 3 and the transmission assembly 5 protruding from the top surface of the base plate 1 is reduced, which effectively reduces the occupied space and facilitates the docking of external components with the fixture of this scheme.

[0017] A preferred solution is, Figure 1 and Figure 2 As shown, two sensors 13 are provided on the bottom plate 1 , and a sensing sheet 14 cooperating with the two sensors 13 is provided on the rotating plate 6 ; a limit block 15 is provided on the fixed plate 2 , and the limit block 15 is arranged in cooperation with the rotating plate 6 .

[0018] It can be seen from the above solution that the arrangement of the two sensors 13 , the induction sheet 14 and the limit block 15 limits the rotation angle of the rotating plate 6 .

[0019] A preferred solution is, Figure 1 and Figure 3 As shown, the floating assembly 4 includes two slide rails 16 arranged in parallel on the fixed plate 2, a mounting plate 17 slidably fitted on the slide rails 16, and a spring arranged between the mounting plate 17 and the base plate 1, and the drive motor 3 is arranged on the mounting plate 17.

[0020] It can be seen from the above scheme that when the worm wheel 8 and the worm 7 are squeezed due to precision problems, the drive motor 3 can slide relatively on the fixed plate 2 along the slide rail 16, indirectly changing the relative positions of the worm 7 and the worm wheel 8, effectively increasing the transmission ratio and stability.

[0021] A preferred solution is, Figure 1 As shown, the rotating plate 6 is provided with a data connection line 18, and the data connection line 18 is adapted to the product.

[0022] As can be seen from the above scheme, the connecting line is connected to the product, thereby completing the test and exporting the corresponding test data.

[0023] A preferred solution is, Figure 1 and Figure 2As shown, both ends of the rotating plate 6 are rotatably connected to the base plate 1 through a rotating shaft 19 and a bearing 20, and the rotating shaft 19 close to the driving motor 3 is connected to the rotating block 11, so that the rotating plate 6 can rotate.

[0024] A preferred solution is, Figure 1 and Figure 2 As shown, the rotating plate 6 is provided with a fixing groove adapted to the product, and the fixing groove has an opening. The rotating plate 6 is provided with a locking block 22 near the opening, and the locking block 22 is provided with a plurality of through holes 23 and a plurality of equal-height screws 24 corresponding to the through holes 23 one by one. The equal-height screws 24 pass through the through holes 23 and are connected to the rotating plate 6.

[0025] It can be seen from the above scheme that there is a certain angle between the rotating plate 6 and the bottom plate 1. When placing the product, the locking block 22 is moved so that the locking block 22 slides along the length direction of the through hole 23, so that the locking block 22 is away from the opening on the fixed groove, so that the product can be smoothly placed on the fixed groove. In this design, the data connection line 18 is slidably engaged on the rotating plate 6 through the movable block. When placing the product, the movable block is moved so that the movable block is away from the fixed groove to complete the avoidance. After the product is completely placed in the fixed groove, the locking block 22 and the movable block are reset, and the locking block 22 locks the product, and the data connection line 18 is connected to the product.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cam-link rotating mechanism, characterized in that: It comprises a base plate (1), a fixed plate (2), a driving motor (3), a floating assembly (4), a transmission assembly (5) and a rotating plate (6); the fixed plate (2) is arranged on the base plate (1); the driving motor (3) is movably matched on the fixed plate (2) through the floating assembly (4); the transmission assembly (5) comprises a worm (7), a worm wheel (8), a connecting block (9), a pulley (10) and a rotating block (11); the driving motor (3), the worm (7), the worm wheel (8) and the connecting block (9) are sequentially connected in transmission; one end of the worm wheel (8) away from the connecting block (9) is rotatably connected to the base plate (1); a waist-shaped hole (12) is provided on the connecting block (9); the pulley (10) is slidably matched on the waist-shaped hole (12); the pulley (10), the rotating block (11) and the rotating plate (6) are sequentially connected in transmission.

2. The cam-connecting rod rotating mechanism according to claim 1, characterized in that: Two sensors (13) are provided on the bottom plate (1), and a sensing sheet (14) matching with the two sensors (13) is provided on the rotating plate (6).

3. The cam-connecting rod rotating mechanism according to claim 1, characterized in that: The fixed plate (2) is provided with a limit block (15), and the limit block (15) is arranged in coordination with the rotating plate (6).

4. The cam-connecting rod rotating mechanism according to claim 1, characterized in that: The floating assembly (4) comprises two slide rails (16) arranged in parallel on the fixed plate (2), a mounting plate (17) slidably engaged with the slide rails (16), and a spring arranged between the mounting plate (17) and the base plate (1); the drive motor (3) is arranged on the mounting plate (17).

5. The cam-connecting rod rotating mechanism according to claim 1, characterized in that: The rotating plate (6) is provided with a data connection line (18), and the data connection line (18) is compatible with the product.

6. The cam-connecting rod rotating mechanism according to claim 1, characterized in that: Both ends of the rotating plate (6) are rotatably connected to the base plate (1) via a rotating shaft (19) and a bearing (20), and the rotating shaft (19) close to the driving motor (3) is connected to the rotating block (11).

7. The cam-connecting rod rotating mechanism according to claim 1, characterized in that: The rotating plate (6) is provided with a fixing groove (21) adapted to the product, the fixing groove (21) having an opening, the rotating plate (6) being provided with a locking block (22) near the opening, the locking block (22) being provided with a plurality of through holes (23) and a plurality of equal height screws (24) corresponding one to the through holes (23), the equal height screws (24) penetrating the through holes (23) and being connected to the rotating plate (6).

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