Automatic deviation rectifying and positioning system

Abstract

The invention relates to the field of automation, in particular to an automatic deviation rectifying and positioning system which comprises a working rotary table driven by a power source to rotate, positioning tables are evenly arranged on the working rotary table in the circumferential direction, and deviation rectifying areas used for containing products to be subjected to deviation rectifying are arranged on the positioning tables; a first positioning block and a second positioning block which are perpendicular to each other are arranged in each deviation rectifying area, and the main pushing deviation rectifying mechanism linearly pushes products to be rectified in the direction perpendicular to the first positioning blocks. A side pushing deflector rod of the side pushing deviation rectifying mechanism linearly pushes the product to be rectified in the direction perpendicular to the second positioning block, the first positioning block and the second positioning block are matched to form right-angle abutting positioning on the product to be rectified, and a pressing block for pressing the product to be rectified in the vertical direction is further arranged in the deviation rectifying area. According to the invention, automatic deviation correction and positioning of the product position can be realized, and subsequent automatic testing of the product is facilitated.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202411113994.8, filed on August 14, 2024, entitled "A Side-Push Correction Mechanism and an Automatic Correction and Positioning System for Product Installation". Technical Field

[0002] This invention relates to the field of automation, specifically to an automatic alignment and positioning system. Background Technology

[0003] For 3C digital products that require component assembly, the assembly, installation, and testing process is as described in patent number "CN118404181A". A turntable platform is set up in the middle of the main unit to support the components. A loading and transfer robot, assembly module, testing module, marking module, and unloading module are sequentially distributed along the circumference of the turntable. After the product components are picked up and assembled by the robot, they are placed on the turntable and transported to the next station for testing. Currently, the equipment used for product testing is all automated. Testing requires that the product's position correspond to the testing equipment's position. However, the position of the product, after assembly by the robot, on the turntable often deviates from the testing position of the equipment. When the product rotates to the testing station, it cannot be guaranteed that it will perfectly correspond to the testing equipment's position. To avoid this, manual alignment and correction of the product are required before testing. This position adjustment is time-consuming and extremely inefficient, thus requiring a solution. Summary of the Invention

[0004] To avoid and overcome the technical problems existing in the prior art, this invention provides an automatic deviation correction and positioning system. This invention can achieve automatic deviation correction and positioning of the product, facilitating subsequent automated testing of the product.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic correction and positioning system includes a working turntable driven to rotate by a power source. Positioning platforms are evenly arranged on the working turntable along the circumference. Correction areas for placing products to be corrected are provided on the positioning platforms. First positioning blocks and second positioning blocks are arranged perpendicularly to each other in each correction area. The main correction mechanism generates a linear pushing action on the products to be corrected along the direction perpendicular to the first positioning block.

[0007] It also includes a side-push correction mechanism, which includes a side-push lead screw mounted on a side-push platform. The side-push lead screw drives the side-push lead screw slider to move linearly through a lead screw and slider engagement. A side-push slider is installed inside the side-push lead screw slider to form a horizontal sliding engagement with the side-push lead screw slider, and the sliding direction of the side-push slider and the movement direction of the side-push lead screw slider are at an angle, which is not a right angle. A side-push lever for the side-push product is fixed on the side-push slider along the travel direction of the side-push lead screw slider. A limit head is installed on the side-push platform. When the side-push slider moves with the side-push lead screw slider until it abuts against the limit head, the limit head generates a reverse thrust on the side-push slider so that the side-push slider and the side-push lead screw slider slide relative to each other. Along the sliding direction of the side-push lead screw slider, the distance between the side-push slider and the limit head is smaller than the distance between the side-push lead screw slider and the limit head.

[0008] The side push lever of the side push correction mechanism pushes the product to be corrected in a straight line along the direction perpendicular to the second positioning block. After the first positioning block and the second positioning block cooperate, they form a right-angle abutment positioning of the product to be corrected. The correction zone is also equipped with a clamping block that presses the product to be corrected in the vertical direction.

[0009] As a further aspect of the present invention: the main push correction mechanism includes a main push screw, which drives the main push screw slider to move linearly through a screw-slider cooperation; the side push platform is fixed at the axis of the working turntable and cooperates with the working turntable to rotate; the main push correction mechanism is arranged on the outside of the working turntable, along the radial direction of the working turntable; the side push correction mechanism and the main push correction mechanism are distributed on both sides of the positioning table; the side push screw and the main push screw are both arranged along the radial direction of the working turntable.

[0010] As a further aspect of the present invention: when the side push slider does not abut against the limiting head, the side push lever avoids the rotation path position of the positioning table along the radial direction of the working turntable; when the side push slider abuts against the limiting head, the side push lever is located on the side of the product to be corrected along the radial direction of the working turntable and is arranged opposite to the second positioning block; when the side push slider and the side push screw slider slide together, the side push lever is driven to move towards the second positioning block.

[0011] As a further embodiment of the present invention: the main push screw slider of the main push correction mechanism is provided with at least two sets of parallel main push elastic pins, each main push elastic pin applying an elastic pressing action to the product to be corrected; the pressing block is an elastic pressing block driven by a cylinder to lift and lower.

[0012] As a further embodiment of the present invention: the positioning platform is pressed and fixed on the working turntable by a pressure plate, forming a detachable fit with the working turntable.

[0013] As a further embodiment of the present invention: the side push slider horizontally passes through the side push screw slider and slides in a sliding engagement with the side push screw slider. A guide groove is provided on the side push slider along the length direction. A guide post corresponding to the width of the guide groove is provided on the side push screw slider along the vertical direction. The end of the guide post and the cavity of the guide groove form a sliding engagement.

[0014] As a further embodiment of the present invention: a reset spring is provided in the guide groove along the length of the guide groove, one end of the reset spring abuts against the groove wall of the guide groove, and the other end of the reset spring abuts against the column of the guide post.

[0015] As a further embodiment of the present invention: the limiting head is a limiting bearing, the axis of the limiting bearing is arranged along the vertical direction, and the side push slider rolls and rubs against the limiting bearing after abutting.

[0016] As a further aspect of the present invention, the side push lever is an elastic lever capable of bending.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention arranges a main push correction mechanism and a side push correction mechanism radially on the working turntable. In two mutually perpendicular pushing directions, the adjacent two sides of the product to be corrected are pushed to the two positioning blocks in the correction area. After the two sets of positioning blocks form a right-angle abutment and positioning of the product to be corrected, the product to be corrected is pressed by the clamping block. The main push correction mechanism and the side push correction mechanism are withdrawn and returned to their original positions. The product to be corrected can then be transported to the next test station under the set positioning surface, thereby completing the automated testing work.

[0019] 2. In this invention, the lead screw structures of both the main push correction mechanism and the side push correction mechanism are arranged radially along the working turntable. When the side push slider and the side push lever move linearly with the side push lead screw slider, and the side push slider is not in contact, there is still a certain distance between the side push lever and the positioning table along the radial direction of the working turntable. The side push lever moves linearly along the radial direction of the working turntable to approach the side of the product to be corrected. When the side push slider abuts against the limiting head, the side push lever moves to the side of the corresponding product to be corrected, thus being arranged opposite to the second positioning block. After the side push slider abuts against the limiting head, when the side push lead screw slider continues to move forward, the side push slider and the side push lead screw slider move to the side of the corresponding product to be corrected. The lead screw and slider slide relative to each other. While sliding, the side push slider cannot continue to move forward and thus rolls with the limit head. The side push lever at the end of the side push slider is horizontally displaced along the tangent of the working turntable, thus moving towards the second positioning block. This presses the other end of the product to be corrected onto the second positioning block. The forward and backward movement of the side push lever can be achieved through the linear movement of the side push lead screw. There is no need to install a linear drive source in the tangent of the working turntable. By using two sets of lead screw structures arranged radially along the working turntable, a right-angle positioning of the product to be corrected can be formed, making full use of the compact installation space of the working turntable.

[0020] 3. This invention guides the sliding of the side push slider through the sliding cooperation of the guide post and guide groove. The arrangement of the return spring in the guide groove compresses the return spring when relative sliding occurs between the side push screw slider and the side push slider. After the side push screw slider is reset, the side push slider can automatically slide back to its original position under the elastic force of the return spring. The limit head is designed as a bearing structure, which allows rolling friction cooperation between the side push slider and the limit head when sliding, resulting in less friction. The bendable design of the side push lever allows for the application of elastic clamping force to the product to be corrected, avoiding rigid pressure damage to the product surface during clamping.

[0021] 4. The main design of the correction mechanism of this invention is based on the design of multiple sets of main elastic pins, which can apply multi-point clamping force to the product to be corrected, adapt to products with irregular shapes, and make the side of the product to be corrected fully abut against the first positioning block. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention.

[0023] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0024] Figure 3 This is a schematic diagram of the side-pushing correction mechanism in this invention.

[0025] Figure 4 This is an enlarged view of the structure of the side-push slider in the present invention, viewed from below.

[0026] Figure 5 This is a simplified diagram of the action state of the side-push slider and the limiting head in this invention.

[0027] In the picture:

[0028] 1. Working turntable; 11. Positioning table; 111. Correction zone; 112. First positioning block;

[0029] 113. Second positioning block; 114. Clamping block; 12. Pressure plate;

[0030] 2. Main steering correction mechanism; 21. Main steering screw;

[0031] 22. Main push screw slider; 23. Main push elastic ejector pin;

[0032] 3. Side-push correction mechanism; 31. Side-push lever; 32. Side-push slider;

[0033] 321. Guide groove; 322. Return spring; 33. Side push screw slider; 331. Guide post;

[0034] 34. Side push screw; 35. Side push platform; 36. Limit head; 4. Product to be corrected. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-5 In this embodiment of the invention, an automatic alignment and positioning system includes a working turntable 1 driven to rotate by a power source. A side-push platform 35 of a side-push alignment mechanism 3 is fixed at the axis of the working turntable 1 and rotates in coordination with the working turntable 1. While the working turntable 1 rotates, the side-push platform 35 remains stationary. Positioning platforms 11 are evenly arranged circumferentially on the working turntable 1. The positioning platforms 11 are pressed against the working turntable 1 by pressure plates 12, thus forming a detachable fit with the working turntable 1. Different sizes of positioning platforms 11 can be replaced depending on the product.

[0037] The main push correction mechanism 2 is arranged outside the working turntable 1. When the working turntable 1 rotates, both the main push correction mechanism 2 and the side push correction mechanism 3 avoid the rotation path position of the positioning table 11. When one of the positioning tables 11 rotates between the main push correction mechanism 2 and the side push correction mechanism 3, the product 4 to be corrected in the positioning table 11 begins the correction operation.

[0038] Along the radial direction of the working turntable 1, the main push correction mechanism 2 and the side push correction mechanism 3 are located on the same straight line. A correction zone 111 for placing the product 4 to be corrected is evenly arranged along the length of the positioning table 11. A first positioning block 112 and a second positioning block 113 are arranged perpendicularly to each other within the correction zone 111. After the product 4 to be corrected is placed in the correction zone 111 by the robotic arm, it is pushed by the main push correction mechanism 2 and the side push correction mechanism 3. The two sides of the product 4 abut against the first positioning block 112 and the second positioning block 113 respectively, thus completing the positioning.

[0039] The correction zone 111 is also equipped with a clamping block 114 that clamps the product 4 to be corrected along the vertical direction. The clamping block 114 is driven by a cylinder and is an elastic clamping block, which clamps the corrected product with elastic clamping force in the vertical direction. Preferably, there are multiple sets of clamping blocks 114 to clamp the product 4 to be corrected at multiple points.

[0040] The main push correction mechanism 2 includes a main push screw 21 arranged radially along the working turntable 1, and the number of main push screws 21 corresponds to the number of correction zones 111. Each main push screw 21 drives the corresponding main push screw slider 22 to move linearly through a screw-slider cooperation. Preferably, at least two sets of parallel main push elastic pins 23 are arranged inside each main push screw slider 22. The main push elastic pins 23 are arranged parallel to the main push screw 21 and opposite to the position of the first positioning block 112. After the main push elastic pins 23 move linearly with the main push screw slider 22 until they abut against the product 4 to be corrected, the main push elastic pins 23 elastically extend and retract, applying an elastic clamping force to the product 4 to be corrected. Through the cooperation of multiple sets of main push elastic pins 23, multiple clamping forces can be applied to the product 4 to be corrected, adapting to products with irregular shapes, so that the side of the product 4 to be corrected fully abuts against the first positioning block 112.

[0041] The side push platform 35 of the side push correction mechanism 3 is fixed with side push screws 34 corresponding to the number of correction zones 111. Each side push screw 34 drives the corresponding side push screw slider 33 to move linearly through the screw slider cooperation. The side push screws 34 are arranged radially along the working turntable 1.

[0042] The side-push slider 32 passes horizontally through the side-push lead screw slider 33 and slides in cooperation with it. The sliding direction of the side-push slider 32 and the side-push lead screw slider 33 forms an angle with the linear motion direction of the side-push lead screw slider 33, and this angle is not a right angle. Preferably, a guide groove 321 is formed on the side-push slider 32 along its length, and a guide post 331 protrudes from the side-push lead screw slider 33 and is inserted into the guide groove 321. The diameter of the guide post 331 corresponds to the width of the guide groove 321. A return spring 322 is built into the guide groove 321. One end of the return spring 322 abuts against the groove wall of the guide groove 321, and the other end abuts against the guide post 331. When the side-push slider 32 is driven by an external force and slides relative to the side-push lead screw slider 33, the return spring 322 is compressed. After the external force is removed, the side-push slider 32 slides back to its original position under the elastic force of the return spring 322.

[0043] A limiting head 36 is provided at one end of the side push platform 35 adjacent to the positioning table 11. The limiting head 36 is preferably a limiting bearing arranged vertically along its axis. The distance between the side push slider 32 and the limiting head 36 is less than the distance between the side push screw slider 33 and the limiting head 36. A side push lever 31, arranged radially along the working turntable 1, is fixed at one end of the side push slider 32 adjacent to the positioning table 11. The side push lever 31 is a slightly bendable elastic lever. To avoid positional interference, the side push lever 31 and the limiting head 36 are staggered in height, and the side push lever 31 and the main push elastic ejector pin 23 are at the same height.

[0044] When the side push slider 32 and the side push lever 31 move linearly with the side push screw slider 33, and the side push slider 32 is not in contact, there is still a certain gap between the side push lever 31 and the positioning table 11 along the radial direction of the working turntable 1. The side push lever 31 moves linearly along the radial direction of the working turntable 1 to approach the side of the product 4 to be corrected. When the side push slider 32 abuts against the limiting head 36, the side push lever 31 moves exactly to the side of the corresponding product 4 to be corrected, thus being arranged opposite to the second positioning block 113. After the side push slider 32 abuts against the limiting head 36, when the side push screw slider 33 continues to move forward, relative sliding occurs between the side push slider 32 and the side push screw slider 33. While sliding, under the action of the included angle, the side push slider 32 and the limiting head 36 roll together, and the side push lever 31 at the end of the side push slider 32 generates a horizontal displacement along the tangent direction of the working turntable 1, thereby moving towards the second positioning block 113 and pressing the other end of the product 4 to be corrected onto the second positioning block 113. After the main push correction mechanism 2 and the side push correction mechanism 3 press and position the product 4 to be corrected in sequence, the pressing block 114 presses and positions the product 4 to be corrected from top to bottom, and then the main push correction mechanism 2 and the side push correction mechanism 3 reset, waiting for the next correction operation.

[0045] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0046] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. An automatic deviation correction and positioning system, characterized in that, The system includes a rotating turntable (1) driven by a power source, on which positioning platforms (11) are evenly arranged circumferentially. The positioning platforms (11) are provided with correction areas (111) for placing the product (4) to be corrected. Each correction area (111) is provided with a first positioning block (112) and a second positioning block (113) arranged perpendicularly to each other. The main correction mechanism (2) generates a linear pushing action on the product (4) to be corrected in the direction perpendicular to the first positioning block (112). It also includes a side-push correction mechanism (3), which includes a side-push lead screw (34) installed on the side-push platform (35). The side-push lead screw (34) drives the side-push lead screw slider (33) to move linearly through the lead screw slider cooperation. The side-push lead screw slider (33) is equipped with a side-push slider (32) that forms a horizontal sliding cooperation with the side-push lead screw slider (33). The sliding direction of the side-push slider (32) is at an angle with the movement direction of the side-push lead screw slider (33), and the angle is not a right angle. The side push lever (31) for the side push product is fixed on the side push slider (32) along the travel direction of the side push screw slider (33). A limit head (36) is installed on the side push platform (35). When the side push slider (32) travels (33) with the side push screw slider until it comes into contact with the limit head (36), the limit head (36) generates a reverse thrust on the side push slider (32) so that the side push slider (32) and the side push screw slider (33) slide relative to each other. Along the sliding direction of the side push screw slider (33), the distance between the side push slider (32) and the limiting head (36) is smaller than the distance between the side push screw slider (33) and the limiting head (36); The side push lever (31) of the side push correction mechanism (3) pushes the product (4) to be corrected in a straight line along the direction perpendicular to the second positioning block (113). After the first positioning block (112) and the second positioning block (113) cooperate, they form a right-angle abutment positioning for the product (4) to be corrected. A pressing block (114) is also provided in the correction zone (111) to press the product (4) to be corrected in the vertical direction.

2. The automatic deviation correction and positioning system according to claim 1, characterized in that, The main push correction mechanism (2) includes a main push screw (21), which drives the main push screw slider (22) to move linearly through the cooperation of the screw and slider. The side push platform (35) is fixed at the axis of the working turntable (1) and rotates in coordination with the working turntable (1). The main push correction mechanism (2) is arranged on the outside of the working turntable (1) along the radial direction of the working turntable (1). The side push correction mechanism (3) and the main push correction mechanism (2) are distributed on both sides of the positioning table (11). The side push screw (34) and the main push screw (21) are both arranged along the radial direction of the working turntable (1).

3. The automatic deviation correction and positioning system according to claim 1, characterized in that, When the side push slider (32) does not contact the limit head (36), the side push lever (31) avoids the rotation path position of the positioning table (11) along the radial direction of the working turntable (1); when the side push slider (32) contacts the limit head (36), the side push lever (31) is located on the side of the product to be corrected (4) along the radial direction of the working turntable (1) and is arranged opposite to the second positioning block (113); when the side push slider (32) and the side push screw slider (33) slide together, the side push lever (31) is driven to move towards the second positioning block (113).

4. The automatic deviation correction and positioning system according to claim 1, characterized in that, The main push correction mechanism (2) has at least two sets of parallel main push elastic pins (23) on the main push screw slider (22). Each main push elastic pin (23) applies an elastic pressing action to the product (4) to be corrected; the pressing block (114) is an elastic pressing block that is driven to rise and fall by a cylinder.

5. The automatic deviation correction and positioning system according to claim 1, characterized in that, The positioning platform (11) is pressed and fixed on the working turntable (1) by the pressure plate (12), and forms a detachable fit with the working turntable (1).

6. An automatic deviation correction and positioning system according to any one of claims 1 to 5, characterized in that, The side push slider (32) passes horizontally through the side push screw slider (33) and slides with it. The side push slider (32) has a guide groove (321) along its length. The side push screw slider (33) has a guide post (331) along its vertical direction that corresponds to the width of the guide groove (321). The end of the guide post (331) slides with the cavity of the guide groove (321).

7. An automatic deviation correction and positioning system according to claim 6, characterized in that, A reset spring (322) is provided inside the guide groove (321) along the length direction of the guide groove (321). One end of the reset spring (322) abuts against the groove wall of the guide groove (321), and the other end of the reset spring (322) abuts against the column of the guide post (331).

8. An automatic deviation correction and positioning system according to any one of claims 1 to 5, characterized in that, The limiting head (36) is a limiting bearing. The axis of the limiting bearing is arranged in the vertical direction. The side push slider (32) rolls and rubs against the limiting bearing after contact.

9. An automatic deviation correction and positioning system according to any one of claims 1 to 5, characterized in that, The side push lever (31) is an elastic lever that can produce a bending action.

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