Positioning device suitable for mobile phone glass cover plate detection

Abstract

The invention relates to the technical field of glass cover plate detection, and discloses a positioning device suitable for mobile phone glass cover plate detection, the positioning device comprises a detection part, the detection part comprises a workbench, a visual device used for detecting the flatness of a mobile phone glass cover plate and a bearing part are installed above the workbench, the bearing part comprises a supporting plate, and the supporting plate is arranged on the workbench. The positioning device comprises a supporting plate, a plurality of trays are fixedly connected to the upper portion of the supporting plate in a rectangular array mode, and positioning mechanisms used for correcting the position of a mobile phone glass cover plate are connected into the trays. The problems that the appearance is damaged, a stress concentration point is formed in the subsequent use process, and the service life of a mobile phone is influenced due to the fact that the glass cover plate is high in hardness, smooth in surface, fine in friction particles or improper in force and easily generates scratches which are difficult to see by naked eyes are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of glass cover plate detection, and in particular to a positioning device suitable for detecting mobile phone glass cover plates. Background Art

[0002] As a protective barrier for mobile phone screens, mobile phone glass cover plates not only need to have good light transmittance and wear resistance, but their surface flatness also directly affects the display effect and touch sensitivity of the mobile phone. As consumers' requirements for mobile phone quality continue to increase, the inspection process in the production process of mobile phone glass cover plates has become more and more refined and strict.

[0003] Machine vision inspection technology, due to its high precision and high efficiency, is widely used in the surface flatness inspection process of mobile phone glass cover plates. In actual operation, the mobile phone glass cover plate needs to be placed on a specific workbench of the vision equipment so that its surface can be photographed from various angles by a high-precision camera to collect image data, and then the flatness is determined based on image analysis. In order to ensure the accuracy of the camera's shooting path, it is usually necessary to fine-tune the positioning of the placed mobile phone glass cover plate so that it is accurately aligned with the preset inspection coordinates.

[0004] The current conventional practice is to push the mobile phone glass cover directly on the workbench to move it to the ideal position. However, during this process, relative friction will inevitably occur between the workbench and the mobile phone glass cover. Since the material of the mobile phone glass cover is mostly high-hardness and smooth glass, tiny friction particles or improper friction force can easily leave scratches on its surface that are difficult to detect with the naked eye. These scratches will damage the appearance integrity of the glass cover. Summary of the Invention

[0005] In response to the above-mentioned shortcomings of the prior art, the present invention provides a positioning device suitable for detecting mobile phone glass cover plates, which can effectively solve the problem in the prior art that when the mobile phone glass cover plate is conventionally pushed to position it, the workbench and the mobile phone glass cover plate will rub against each other. Due to the high hardness and smooth surface of the glass cover plate, fine friction particles or improper force can easily cause scratches that are difficult to see with the naked eye, which not only destroys the appearance, but also becomes a stress concentration point in subsequent use, affecting the life of the mobile phone.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A positioning device suitable for detecting a mobile phone glass cover, comprising:

[0008] The detection unit includes a workbench, and a visual device for detecting the flatness of the mobile phone glass cover is installed above the workbench.

[0009] The supporting part includes a support plate, a plurality of trays are fixedly connected to the top of the support plate in a rectangular array, a positioning mechanism for correcting the position of the mobile phone glass cover is connected inside the tray, and a tilting mechanism is connected to the bottom of the support plate.

[0010] Among them, the positioning mechanism includes a single-axis roller, and the single-axis roller is connected to the front side wall of the pallet so as to rotate evenly along the left and right directions. The multiple single-axis rollers are connected through the No. 1 pulley and the No. 1 belt transmission. The left and right side walls of the pallet are connected to the multiple double-axis rollers that rotate evenly along the front and back directions. The multiple double-axis rollers are connected to each other through the No. 2 pulley and the No. 2 belt transmission. The bottom of the pallet is connected to a support mechanism that cooperates with the single-axis roller and the double-axis roller.

[0011] Furthermore, the roller bodies of the double-axis roller and the single-axis roller are both elliptical, and the No. 1 belt and the No. 2 belt are both connected with auxiliary mechanisms for assisting the single-axis roller and the double-axis roller to rotate.

[0012] Furthermore, the support mechanism includes a support frame, which is fixedly connected to the bottom of the pallet. A plurality of anti-slip seats are fixedly connected to the support frame, and the plurality of anti-slip seats are evenly and staggeredly arranged between the gaps between adjacent single-axis rollers and adjacent double-axis rollers.

[0013] Furthermore, the uniaxial roller begins to have a spiral groove, and the spiral groove is arranged in a clockwise direction, and the surface of the biaxial roller is provided with a strip groove for enhancing friction.

[0014] Furthermore, the tilting mechanism includes a turntable, which is rotatably connected to the workbench, the lower end of the turntable is connected to a driving unit, the upper end of the turntable is connected to the support plate through a ball joint seat, and a balancing frame is fixedly sleeved on the ball joint seat. The balancing frame is cross-shaped and is hinged to the workbench through four spring rods. The ball joint seat and the turntable are also jointly connected with a tilting assembly.

[0015] Furthermore, the tilting assembly includes a spring seat, which is fixedly connected to the turntable, and the movable end of the spring seat adopts a trapezoidal design. A circular plate is fixedly sleeved on the ball joint seat, and four makeshift grooves corresponding to the balance frame are opened along the circumference of the circular plate. Two balance plates are also symmetrically fixedly connected to the upper end of the turntable. The balance plates are arc-shaped and have chamfers on their front end faces in the clockwise direction.

[0016] Furthermore, the auxiliary mechanism connected to the front belt No. 1 includes a block, which is evenly fixed to the outer surface of the No. 1 belt along the length direction of the No. 1 belt. The front wall of the tray is located above the No. 1 belt and is connected to a counterweight block for sliding left and right. The counterweight block is connected to a pushing assembly, and the pushing assembly and the block are jointly connected to a limiting assembly.

[0017] Furthermore, the pushing assembly includes a cylindrical block, and a cylindrical mounting groove is provided at the lower end of the counterweight block, whose axial direction is parallel to the axial direction of the No. 1 pulley. The cylindrical block is rotatably connected in the cylindrical mounting groove, and the circumferential outer surface of the cylindrical block is fixedly connected to a stop block. The lower end surface of the counterweight block and the right side of the stop block are fixedly connected to a limit plate for limiting the stop block.

[0018] Furthermore, the limiting assembly includes a protective shell, a protective shell is provided on the outside of the No. 1 pulley and the No. 1 belt, the right end face of the stop block is fixedly connected to the No. 1 magnet, the left end face of the stop block is fixedly connected to the No. 2 magnet that attracts the No. 1 magnet, and the fan-shaped block 2644 is fixedly connected to the single-axis roller, the roller shaft of one of the single-axis rollers and the protective shell are jointly connected to the limiting member, and the connection method of the remaining auxiliary mechanisms is the same as the connection method of the auxiliary mechanisms connected to the No. 1 belt on the front side.

[0019] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] When the turntable of the present invention rotates, it will drive the spring seat to rotate synchronously. When the spring seat rotates to the give way groove, its movable section will extend to drive the supporting plate as a whole to tilt forward and then to the right, so that the corresponding counterweight block slides from high to low, and then drives the single-axis roller or the double-axis roller to rotate, and move the mobile phone glass cover to be close to the front inner wall and the right inner wall of the tray, thereby realizing its automatic positioning. The single-axis roller and the double-axis roller both adopt an elliptical design. When they rotate, they will push the mobile phone glass cover to a height higher than the anti-slip seat, and then push it downward. After a single push is completed, the mobile phone The organic glass cover will fall back onto the anti-slip seat again. Due to the large friction resistance on the anti-slip seat, the moving speed of the mobile phone glass cover will be reduced, and the collision force when it contacts the inner wall of the tray will also be small, thereby avoiding damage to the mobile phone glass cover. This positioning method can synchronously position multiple mobile phone glass cover plates at one time, with high efficiency. Compared with extrusion positioning and push positioning, this positioning method has lower precision requirements for the positioning device, but higher positioning accuracy, and is applicable to rectangular mobile phone glass cover plates of various sizes within a certain range, and has a wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0022] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a positioning device suitable for detecting a mobile phone glass cover.

[0023] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a supporting part in a positioning device suitable for detecting a mobile phone glass cover from a first viewing angle.

[0024] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a supporting part in a positioning device suitable for detecting a mobile phone glass cover plate from a second viewing angle.

[0025] Figure 4 For the present invention Figure 3 A partial enlarged view of point A in the middle.

[0026] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a tilting mechanism in a positioning device suitable for detecting a mobile phone glass cover.

[0027] Figure 6 The figure is an exploded view of a tilting mechanism in a positioning device suitable for detecting a mobile phone glass cover according to the present invention.

[0028] Figure 7 The figure is a schematic diagram of the three-dimensional structure of an auxiliary mechanism in a positioning device suitable for detecting a mobile phone glass cover according to the present invention.

[0029] The numbers in the figure represent: 1. Detection unit; 11. Workbench; 12. Visual equipment; 2. Support unit; 21. Pallet; 22. Tray; 23. Positioning mechanism; 231. Single-axis roller; 2311. Threaded groove; 232. Belt No. 1; 233. Double-axis roller; 2331. Strip groove; 234. Belt No. 2; 24. Tilt mechanism; 241. Turntable; 242. Drive unit; 243. Ball joint seat; 244. Balancing frame; 245. Spring rod; 246. Tilt assembly; 246 1. Spring seat; 2462. Round plate; 2463. Giving groove; 2464. Balance plate; 25. Support mechanism; 251. Support frame; 252. Anti-slip seat; 26. Auxiliary mechanism; 261. Stop block; 262. Counterweight block; 263. Push assembly; 2631. Column block; 2632. Stop block; 2633. Limit plate; 264. Limit assembly; 2641. Protective shell; 2642. Magnet No. 1; 2643. Magnet No. 2; 2644. Fan-shaped block; 2645. Limit piece. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The present invention will be further described below with reference to the embodiments.

[0032] Example:

[0033] See Figure 1-Figure 7 , a positioning device suitable for detecting a mobile phone glass cover, comprising:

[0034] The detection part 1 includes a workbench 11, and a visual device 12 for detecting the flatness of the mobile phone glass cover is installed above the workbench 11.

[0035] The supporting part 2 includes a support plate 21, and a plurality of trays 22 are fixedly connected to the top of the support plate 21 in a rectangular array. A positioning mechanism 23 for correcting the position of the mobile phone glass cover is connected inside the tray 22, and a tilting mechanism 24 is connected to the bottom of the support plate 21.

[0036] Among them, the positioning mechanism 23 includes a single-axis roller 231, and the single-axis roller 231 is connected to the front side wall of the tray 22 so as to rotate evenly along the left and right directions. The multiple single-axis rollers 231 are connected through the No. 1 pulley and the No. 1 belt 232. The left and right side walls of the tray 22 are connected with multiple double-axis rollers 233 that rotate evenly along the front and back directions. The multiple double-axis rollers 233 are connected to each other through the No. 2 pulley and the No. 2 belt 234. The bottom of the tray 22 is connected to a support mechanism 25 that cooperates with the single-axis roller 231 and the double-axis roller 233.

[0037] The roller bodies of the double-axis roller 233 and the single-axis roller 231 are both elliptical, and the No. 1 belt 232 and the No. 2 belt 234 are both connected with auxiliary mechanisms 26 for assisting the single-axis roller 231 and the double-axis roller 233 to rotate.

[0038] During the specific implementation, the glass cover of the mobile phone to be tested is first placed on the support mechanism 25 in the tray 22 by a mechanical arm. In the initial state, the tilting mechanism 24 is in a stationary state, and its function is to adjust the support plate 21 to make it in a horizontal state. When it is necessary to fine-tune the position of the mobile phone glass cover plate, the tilting mechanism 24 is operated, first driving the support plate 21 as a whole to tilt forward, and then the double-axis roller 233 rotates clockwise under the joint action of the second pulley, the second belt 234 and the auxiliary mechanism 26. Since the roller body of the double-axis roller 233 is elliptical, when it rotates, the end with the larger diameter is facing upward, which will lift the support plate 21 upward to be higher than the support mechanism 25. At the same time, its clockwise rotation will also drive the mobile phone glass cover plate to move forward, so that the mobile phone glass cover plate moves in a short distance multiple times and finally fits against the front inner wall of the tray 22.

[0039] Then, as the tilting mechanism 24 continues to operate, it will drive the support plate 21 to tilt to the right as a whole. In this state, the double-axis roller 233 remains stationary, and the single-axis roller 231 starts to rotate driven by the No. 1 pulley and the No. 1 belt 232, moving the mobile phone glass cover to fit the inner wall on the left side of the tray 22. Then, as the tilting mechanism 24 continues to operate, it will drive the support plate 21 to return to a horizontal state. At this time, the mobile phone glass cover is also moved and positioned to the right front position in the tray 22. Then, by moving the visual device 12 above the mobile phone glass cover according to the set path, photographing and sampling each point on the mobile phone glass cover, and finally analyzing the collected photo information through the analysis system, the flatness information of the mobile phone glass cover can be obtained.

[0040] The support mechanism 25 includes a support frame 251, which is fixedly connected to the bottom of the tray 22. A plurality of anti-slip seats 252 are fixedly connected to the support frame 251. The plurality of anti-slip seats 252 are evenly and staggeredly arranged between the gaps between adjacent single-axis rollers 231 and adjacent double-axis rollers 233.

[0041] The uniaxial roller 231 begins to have a spiral groove 2311 , and the spiral groove 2311 is arranged in a clockwise direction. The surface of the biaxial roller 233 is provided with a strip groove 2331 for enhancing friction.

[0042] The tilting mechanism 24 includes a turntable 241, which is rotatably connected to the workbench 11. The lower end of the turntable 241 is connected to a driving unit 242 (the driving unit 242 is a prior art and can drive the turntable 241 to rotate intermittently 180 degrees at a slow speed). The upper end of the turntable 241 is connected to the support plate 21 through a ball joint seat 243. A balancing frame 244 is fixedly sleeved on the ball joint seat 243. The balancing frame 244 is cross-shaped and is hinged to the workbench 11 through four spring rods 245. The ball joint seat 243 and the turntable 241 are also commonly connected with a tilting component 246.

[0043] The tilting assembly 246 includes a spring seat 2461, which is fixedly connected to the turntable 241, and the movable end of the spring seat 2461 adopts a trapezoidal design. A circular plate 2462 is fixedly sleeved on the ball joint seat 243, and four circumferentially arranged yielding grooves 2463 corresponding to the balance frame 244 are provided on the circular plate 2462. Two balance plates 2464 are also symmetrically fixedly connected to the upper end of the turntable 241. The balance plate 2464 is arc-shaped and has a chamfer on its front end face in the clockwise direction.

[0044] The auxiliary mechanism 26 connected to the front belt No. 1 232 includes a stopper 261, which is evenly fixed to the outer surface of the No. 1 belt 232 along the length direction of the No. 1 belt 232. The front side wall of the tray 22 is located above the No. 1 belt 232 and is connected to a counterweight block 262 for sliding left and right. The counterweight block 262 is connected to a pushing assembly 263, and the pushing assembly 263 and the stopper 261 are jointly connected to a limiting assembly 264.

[0045] The pushing assembly 263 includes a cylindrical block 2631, and a cylindrical mounting groove is opened at the lower end of the counterweight block 262, whose axial direction is parallel to the axial direction of the No. 1 pulley. The cylindrical block 2631 is rotatably connected in the cylindrical mounting groove, and the circumferential outer surface of the cylindrical block 2631 is fixedly connected to the block 2632. The lower end surface of the counterweight block 262 and the right side of the block 2632 are fixedly connected to a limiting plate 2633 for limiting the block 2632.

[0046] The limiting assembly 264 includes a protective shell 2641, and a protective shell 2641 is provided on the outside of the No. 1 pulley and the No. 1 belt 232. A rectangular groove is provided on the top of the protective shell 2641. The right end face of the stop block 2632 is fixedly connected to the No. 1 magnet 2642, and the left end face of the stop block 261 is fixedly connected to the No. 2 magnet 2643 that attracts the No. 1 magnet 2642. A fan-shaped block 2644 is fixedly connected to the single-axis roller 231, and the roller shaft of one of the single-axis rollers 231 and the protective shell 2641 are jointly connected to a limiting member 2645 (the interior of which is a ratchet and a pawl, and the internal structure is not shown in the figure). The connection method of the remaining auxiliary mechanisms 26 is the same as the connection method of the auxiliary mechanism 26 connected to the front side No. 1 belt 232.

[0047] During specific implementation, when the tray 22 is in a horizontal state, the single-axis roller 231 and the double-axis roller 233 are both in a horizontal state under the action of the fan-shaped blocks 2644 at their ends. At this time, the height of the anti-slip seat 252 is higher than the highest height of the single-axis roller 231 and the double-axis roller 233. When the mobile phone glass cover is placed in the tray 22, the mobile phone glass cover is located on the anti-slip seat 252. At this time, the top ends of the two balance plates 2464 are symmetrically overlapped on the left and right sides of the balance frame 244. The spring seat 2461 is in a compressed state and is in a position farther back in the clockwise direction relative to the rear side give way groove 2463. At this time, the balance frame 244 is in a horizontal state.

[0048] After the glass cover of the mobile phone is on the anti-slip seat 252, the driving unit 242 starts to operate and drives the turntable 241 to rotate slowly by 180 degrees. During the rotation, when the spring seat 2461 moves to the rear give way groove 2463, due to the loss of restriction above it, its movable section will pop out and abut against the rear of the balance frame 244, thereby causing the balance frame 244 to tilt forward. In this state, the counterweight block 262 located on the rear side will slide forward due to loss of balance, thereby driving the stop block 261 located above the second belt 234 to move forward through the abutment block 2632, and then the second belt 234 starts to rotate clockwise, driving the double-axis roller 233 to rotate clockwise as well, thereby driving the glass cover of the mobile phone to move forward.

[0049] Then, as the spring seat 2461 continues to rotate clockwise with the turntable 241, due to its trapezoidal movable section, it will move out of the rear side clearance groove 2463 during the continued movement and abut against the bottom of the circular plate 2462 again. As the abutting force at the rear disappears, the balance frame 244 will return to a relatively horizontal position under the action of the four spring rods 245, until the upper ends of the two balance plates 2464 move and abut against the front and rear ends of the balance frame 244, the balance frame 244 returns to a completely horizontal position, and then as the spring seat 2461 continues to move, it will Move to the left side of the yield groove 2463, and tilt the support plate 21 to the right in the same way as above, so that the mobile phone glass cover moves to fit the inner wall of the right side of the tray 22, and then as the spring seat 2461 continues to rotate, when it rotates one hundred and eighty degrees, the support plate 21 returns to a horizontal equilibrium state. At this time, the positioning of the mobile phone glass cover is completed. The high-precision camera in the visual machine is used to take pictures of the surface of the mobile phone glass cover from various angles to collect image data, and then the flatness of each point on the mobile phone glass cover can be analyzed based on the image.

[0050] When the test is completed, the spring seat 2461 is rotated one hundred and eighty degrees again with the turntable 241. When passing the front give way slot 2463 and the right give way slot 2463, the support plate 21 will rotate backward and to the left respectively. Taking the state when the support plate 21 is tilted backward as an example, when the support plate 21 is tilted backward, the counterweight block 262 above the No. 2 belt 234 slides backward and resets under the action of its own gravity, and the No. 2 pulley cannot rotate due to the restriction of the ratchet and pawl. At this time, the column block 2631 will automatically rotate clockwise by a certain angle, so that the block 2632 connected to it also rotates synchronously, and then it can be reset to the initial position through the block 261 above the No. 2 belt 234.

[0051] It is worth noting that the above positioning device suitable for mobile phone glass cover detection has the following advantages:

[0052] Advantage 1: In this embodiment, when the turntable 241 rotates, it will drive the spring seat 2461 to rotate synchronously. When the spring seat 2461 rotates to the give way groove 2463, its movable section will extend to drive the support plate 21 to tilt as a whole, thereby causing the counterweight block 262 to slide from a high position to a low position, and then drive the single-axis roller 231 or the double-axis roller 233 to rotate, moving the mobile phone glass cover to be close to the front inner wall and the right inner wall of the tray 22, thereby realizing its automatic positioning. This positioning method can synchronously position multiple mobile phone glass cover plates at one time, with high efficiency.

[0053] Advantage 2: In this embodiment, the single-axis roller 231 and the double-axis roller 233 both adopt an elliptical design rather than a traditional circular design. The advantage is that when the single-axis roller 231 and the double-axis roller 233 rotate, they will push the mobile phone glass cover to a height higher than the anti-slip seat 252, and then push it forward. After a single push is completed, the mobile phone glass cover will fall back onto the anti-slip seat 252 again. Due to the friction resistance between the anti-slip seat 252, the movement speed of the mobile phone glass cover will be reduced, thereby moving toward the inner wall of the tray 22 in an intermittent feeding manner. Under this movement mode, the speed of the mobile phone glass cover when reaching the inner wall of the tray 22 is relatively small, and the collision force between the two when contacting the inner wall of the tray 22 is also small, thereby protecting the mobile phone glass cover to the greatest extent. Compared with extrusion positioning and push positioning, this positioning method has lower requirements on the accuracy of the positioning device, but has higher positioning accuracy, and is applicable to rectangular mobile phone glass cover plates of various sizes within a certain range, and has a wide applicability.

[0054] Advantage 3: A threaded groove 2311 is fixedly connected to the uniaxial roller 231 in this embodiment. When the uniaxial roller 231 rotates to lift the mobile phone glass cover plate and transport it to the inner wall on the right side of the tray 22, the threaded groove 2311 will rotate synchronously during the rotation of the uniaxial roller 231, thereby driving the mobile phone glass cover plate to slide forward, so that the mobile phone glass cover plate is always in contact with the inner wall on the front side of the tray 22, avoiding secondary separation after positioning is completed due to vibration or other factors, thereby ensuring accurate positioning.

[0055] Advantage 4. In this embodiment, taking the state when the support plate 21 is tilted forward as an example, when the counterweight blocks 262 on the left and right sides move from the back to the front, the stop blocks 2632 thereon will automatically fit with the stop blocks 261 under the action of the magnetic force between the No. 1 magnet 2642 and the No. 2 magnet 2643. When the counterweight block 262 moves to the front and stops, the No. 2 belt 234 also stops synchronously at this time, so that the double-axis roller 233 remains in a horizontal state at this time. In the horizontal state, the highest point of the double-axis roller 233 is lower than the lowest point of the anti-slip seat 252. Then, when the support plate 21 returns to a horizontal state, the double-axis roller 233 will not rotate again under the influence of the fan-shaped block 2644, thereby avoiding the mobile phone glass cover from shifting again after the positioning is completed due to the rotation of the double-axis roller 233.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A positioning device suitable for detecting mobile phone glass cover plates, characterized by: include: A detection unit (1), the detection unit (1) comprising a workbench (11), and a visual device (12) for detecting the flatness of a mobile phone glass cover plate is installed above the workbench (11); A supporting portion (2), the supporting portion (2) comprising a supporting plate (21), a plurality of trays (22) being fixedly connected above the supporting plate (21) in a rectangular array, a positioning mechanism (23) for correcting the position of a mobile phone glass cover being connected inside the tray (22), and a tilting mechanism (24) being connected below the supporting plate (21); The positioning mechanism (23) comprises a single-axis roller (231), wherein the single-axis roller (231) is connected to the front side wall of the tray (22) so as to rotate uniformly in the left and right directions, and the multiple single-axis rollers (231) are connected to each other through a first pulley and a first belt (232). The left and right side walls of the tray (22) are connected to each other so as to rotate uniformly in the front and back directions, and the multiple double-axis rollers (233) are connected to each other through a second pulley and a second belt (234). The bottom of the tray (22) is connected to a support mechanism (25) that cooperates with the single-axis roller (231) and the double-axis rollers (233).

2. A positioning device suitable for detecting mobile phone glass cover plates according to claim 1, characterized in that: The roller bodies of the biaxial roller (233) and the uniaxial roller (231) are both elliptical, and the first belt (232) and the second belt (234) are both connected with auxiliary mechanisms (26) for assisting the rotation of the uniaxial roller (231) and the biaxial roller (233).

3. The positioning device for detecting mobile phone glass cover plates according to claim 1, characterized in that: The support mechanism (25) comprises a support frame (251), the support frame (251) being fixedly connected to the bottom of the tray (22), a plurality of anti-slip seats (252) being fixedly connected to the support frame (251), and the plurality of anti-slip seats (252) being evenly and staggeredly arranged between the gaps between adjacent single-axis rollers (231) and adjacent double-axis rollers (233).

4. The positioning device for detecting mobile phone glass cover plates according to claim 1, characterized in that: The uniaxial roller (231) begins to have a thread-shaped groove (2311), and the thread-shaped groove (2311) is arranged in a clockwise direction. The surface of the biaxial roller (233) is provided with a strip-shaped groove (2331).

5. The positioning device for detecting mobile phone glass cover plates according to claim 1, characterized in that: The tilting mechanism (24) includes a turntable (241) which is rotatably connected to the workbench (11). The lower end of the turntable (241) is connected to a driving unit (242). The upper end of the turntable (241) is connected to the support plate (21) via a ball joint seat (243). A balancing frame (244) is fixedly sleeved on the ball joint seat (243). The balancing frame (244) is cross-shaped and is hinged to the workbench (11) via four spring rods (245). A tilting assembly (246) is also commonly connected to the ball joint seat (243) and the turntable (241).

6. The positioning device for detecting mobile phone glass cover plates according to claim 5, characterized in that: The tilting assembly (246) includes a spring seat (2461), which is fixedly connected to the turntable (241). A circular plate (2462) is fixedly sleeved on the ball joint seat (243). Four circumferentially arranged yielding grooves (2463) corresponding to the balancing frame (244) are provided on the circular plate (2462). Two balancing plates (2464) are symmetrically fixedly connected to the upper end of the turntable (241). The balancing plates (2464) are arc-shaped and have chamfers on their front end faces in the clockwise direction.

7. The positioning device for detecting mobile phone glass cover plates according to claim 1, characterized in that: The auxiliary mechanism (26) connected to the front belt (232) includes a stopper (261), which is evenly fixedly connected to the outer surface of the belt (232) along the length direction of the belt (232). A counterweight (262) is connected to the front side wall of the tray (22) and is located above the belt (232) so as to slide left and right. A push assembly (263) is connected to the counterweight (262). A limit assembly (264) is connected to the push assembly (263) and the stopper (261).

8. The positioning device for detecting mobile phone glass cover plates according to claim 7, characterized in that: The pushing assembly (263) includes a cylindrical block (2631), a cylindrical mounting groove with an axial direction parallel to the axial direction of the first pulley is opened at the lower end of the counterweight block (262), the cylindrical block (2631) is rotatably connected in the cylindrical mounting groove, the circumferential outer surface of the cylindrical block (2631) is fixedly connected to the stop block (2632), and a limiting plate (2633) for limiting the stop block (2632) is fixedly connected to the lower end surface of the counterweight block (262) and located on the right side of the stop block (2632).

9. The positioning device for detecting mobile phone glass cover plates according to claim 8, characterized in that: The limiting assembly (264) includes a protective shell (2641), the outer side of the No. 1 pulley and the No. 1 belt (232) is provided with a protective shell (2641), the right end face of the stop block (2632) is fixedly connected to the No. 1 magnet (2642), the left end face of the stop block (261) is fixedly connected to the No. 2 magnet (2643) that attracts the No. 1 magnet (2642), the fan-shaped block (2644) is fixedly connected to the single-axis roller (231), the roller shaft of one of the single-axis rollers (231) and the protective shell (2641) are jointly connected to the limiting member, and the connection method of the remaining auxiliary mechanisms (26) is the same as the connection method of the auxiliary mechanism (26) connected to the No. 1 belt (232) on the front side.

Images