An automatic guiding and rectifying device

Abstract

The application relates to an automatic guiding deviation rectifying device, and relates to the field of modern automobile industrial production and manufacturing. The device comprises a deviation rectifying mechanism and a return mechanism. The deviation rectifying mechanism comprises a rotating arm, the rotating arm comprises a long arm and a short arm used for driving the long arm to be lifted after the long arm is driven to descend when the plate contacts the front end of the long arm, the front ends of the long arm and the short arm are upwardly arranged and are mutually angled, a rotating pin is arranged in the middle of the rotating arm so as to divide the rotating arm into the long arm and the short arm, and the return mechanism comprises an elastic component used for descending the short arm to return when the plate leaves the long arm. The rotating pin and the deviation rectifying mechanism are adopted to rectify the plate through the tilting and rotating mode. The deviation rectifying device has the advantages of strong deviation rectifying capacity, high efficiency, large deviation rectifying range, larger deviation rectifying moving distance compared with the existing deviation rectifying mechanism, small friction force generated during deviation rectification, and difficulty in being stuck during the deviation rectification of the plate.

Description

Technical Field

[0001] This invention relates to the field of modern automotive industrial manufacturing, and specifically to an automatic guidance and correction device. Background Technology

[0002] In the modern automotive manufacturing industry, there are numerous processes for handling automotive materials, such as uncoiling, shearing, bending, cutting, stamping, and punching. Material conveying is an essential step in these processes. Materials or scrap materials are very prone to deflection during conveying, especially long sheets. If long sheets deflect, it can cause jamming during feeding and dimensional deviations. Therefore, a sheet material auxiliary guiding and correction mechanism is needed to calibrate and correct the sheet material.

[0003] There are two existing sheet metal auxiliary guiding and correction mechanisms. The first is a "roller-type" mechanical guiding device, which uses fixed rollers as guide wheels. If the diameter of the guide wheel is too small, the correction ability will be reduced, and the material will easily jam. If the diameter of the guide wheel is too large, the guiding and correction ability can be enhanced, but it requires a larger installation space. In addition, this device has built-in bearings, which require regular lubrication and maintenance. The second is a Y-type / "trumpet-mouth" type guiding device. This device uses a guide rail bent to a certain arc to guide and correct the sheet metal. The size of the arc angle determines the guide angle. If the guide angle is too small, it is easy to cause jamming. If the guide angle is too large, the guiding and correction ability is too small, and the correction effect is poor. In addition, the sliding friction of this device is relatively large, which will generate greater resistance to the sheet metal, making it more likely to jam. Summary of the Invention

[0004] This application provides an automatic guide and correction device that can solve the problems of existing sheet metal auxiliary guide and correction mechanisms having small correction capacity and small correction range, which leads to the sheet metal easily getting stuck and requires subsequent lubrication and maintenance.

[0005] In a first aspect, embodiments of this application provide an automatic guiding and correcting device, including a correction mechanism and a return mechanism. The correction mechanism includes a rotating arm, which includes a long arm and a short arm that is driven to rise after the long arm descends when the sheet material contacts the front end of the long arm. The front ends of the long arm and the short arm are both upward and at an angle to each other. A rotating pin is provided in the middle of the rotating arm to divide the rotating arm into a long arm and a short arm. The return mechanism includes an elastic component for lowering the short arm back to its original position after the sheet material leaves the long arm.

[0006] In conjunction with the first aspect, in one embodiment, the short arm is located at the front end of the correction mechanism, the long arm is located at the rear end of the correction mechanism, and the short arm and the long arm together form a groove.

[0007] In conjunction with the first aspect, in one embodiment, the initial position of the correction mechanism is when the correction mechanism is not in contact with the sheet metal and both the correction mechanism and the return mechanism are naturally stationary. When the correction mechanism is in the initial position, the height of the front end of the short arm is lower than the height of the front end of the long arm.

[0008] In conjunction with the first aspect, in one embodiment, when the correction mechanism is in the initial position, the height of the front end of the short arm is lower than the height of the bottom surface of the sheet metal.

[0009] In conjunction with the first aspect, in one embodiment, the correction position of the correction mechanism is when the front end of the short arm and the front end of the long arm are both in contact with the sheet metal. When the correction mechanism is in the correction position, the height of the front end of the short arm is equal to the height of the front end of the long arm.

[0010] In conjunction with the first aspect, in one embodiment, a limiting block is installed below the long arm.

[0011] In conjunction with the first aspect, in one embodiment, when the correction mechanism is in the correction position, the long arm is connected to the limiting block.

[0012] In conjunction with the first aspect, in one embodiment, the end of the correction mechanism is provided with a guide wheel.

[0013] In conjunction with the first aspect, in one embodiment, the top height of the guide wheel is the same as the front height of the correction mechanism when it is in the correction position.

[0014] In conjunction with the first aspect, in one embodiment, the elastic component includes a return spring, one end of which is connected to the short arm, and the other end of which is connected to the ground.

[0015] The beneficial effects of the technical solutions provided in this application include:

[0016] This application employs a rotating pin and a correction mechanism to correct the deviation of the sheet metal by prying and rotating. This application has strong correction capability, high efficiency, and a large correction range. Compared with existing correction mechanisms, this application has a larger correction movement distance. At the same time, the use of rotation reduces the friction generated during correction, and the sheet metal is less likely to get stuck during the correction process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the initial position structure of an automatic guidance and correction device provided in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the correction position structure of an automatic guidance and correction device provided in an embodiment of this application;

[0020] Figure 3 A schematic diagram of the guide wheel structure of an automatic guidance and correction device provided in an embodiment of this application;

[0021] Figure 4 A schematic diagram illustrating the correction distance of an automatic guidance and correction device provided in an embodiment of this application;

[0022] In the diagram: 1. Correction mechanism; 2. Rotating pin; 3. Return mechanism; 4. Short arm; 5. Long arm; 6. Groove; 7. Limiting block; 8. Guide wheel; 9. Sheet material. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0024] This application provides an automatic guide and correction device and a combined correction device, which can solve the problems of existing sheet metal auxiliary guide and correction mechanisms having small correction capacity and small correction range, which leads to the sheet metal easily getting stuck and requires subsequent lubrication and maintenance.

[0025] See Figure 1 and Figure 2 As shown, this application embodiment provides an automatic guide correction device, including a correction mechanism 1 and a return mechanism 3. The correction mechanism 1 includes a rotating arm, which includes a long arm 5 and a short arm 4 for being driven to rise after the long arm 5 is driven to fall when the sheet 9 contacts the front end of the long arm 5. The front ends of the long arm 5 and the short arm 4 are both set upward and at an angle to each other. A rotating pin 2 is provided in the middle of the rotating arm to divide the rotating arm into the long arm 5 and the short arm 4. The return mechanism 3 includes an elastic component for lowering the short arm 4 back to its original position after the sheet 9 leaves the long arm 5.

[0026] The automatic guide and correction device provided in this application embodiment has a correction mechanism 1 for correcting the deviation of sheet metal 9. A short arm 4 is used to lift and correct the sheet metal 9, and a long arm 5 is used to contact the sheet metal 9 and be pushed by it to rotate around a rotating pin 2. A return mechanism 3 is used to pull the correction mechanism 1 back to its original position after the sheet metal 9 leaves the correction mechanism 1. During the correction operation of the sheet metal 9, the sheet metal 9 first passes the short arm 4, then continues to move forward, contacts the long arm 5 of the automatic guide and correction device provided in this application embodiment, and is blocked by the long arm 5. Then, the sheet metal 9 pushes the long arm 5 to rotate around the rotating pin 2. The short arm 4 is indirectly driven to rotate, and the front end of the short arm 4 rises upward, simultaneously lifting the sheet metal 9. The sheet metal 9 pushes the long arm 5 to rotate around the rotating pin 2, and it will continue to move forward. When the sheet metal 9 passes the front end of the long arm 5, the line connecting the front end of the short arm 4 and the front end of the long arm 5 is parallel to the bottom of the sheet metal 9, at which point the correction of the sheet metal 9 is completed. When the sheet metal 9 continues to move forward until it completely leaves the automatic guide correction device provided in this application embodiment, the elastic component of the return mechanism 3 pulls the short arm 4 to rotate in the opposite direction of the rotation direction during the correction operation until the elastic component returns to its initial state.

[0027] As an optional embodiment, see [link to example]. Figure 1 and Figure 2 As shown, the short arm 4 is located at the front end of the correction mechanism 1, and the long arm 5 is located at the rear end of the correction mechanism 1. The short arm 4 and the long arm 5 together form a groove 6. The correction mechanism 1 of the automatic guiding correction device provided in this application provides two rotating arms, so that the sheet metal 9 can be positioned by the two vertices of the short arm 4 and the long arm 5 during the correction operation, making the correction of the sheet metal 9 more accurate. The groove formed by the short arm 4 and the long arm 5 can be filled with the same material, so that the correction mechanism 1 composed of the short arm 4, the long arm 5 and the filling material forms a triangular structure. Alternatively, the groove can be left unfilled, so that the correction mechanism 1 composed of the short arm 4 and the long arm 5 forms an L-shaped structure. For the triangular structure, when the front end of the sheet metal 9 abuts against the structural surface of the correction mechanism and continues to move forward, pushing the long arm 5 to rotate, the triangular structure allows the sheet metal 9 to complete the correction operation only through the front end contact, reducing the friction between the sheet metal 9 and the correction mechanism 1 and reducing the wear of the sheet metal 9 during the correction operation. For the L-shaped structure, although there are two contact points between the sheet metal 9 and the correction mechanism 1, namely the front end of the short arm 4 and the front end of the long arm 5, the correction of the sheet metal 9 is smoother during the correction operation, reducing the chance of the sheet metal getting stuck during the correction process.

[0028] As an optional embodiment, see [link to example]. Figure 1 and Figure 2As shown, when the correction mechanism 1 does not contact the sheet metal 9 and both the correction mechanism 1 and the return mechanism 3 are naturally stationary, it is the initial position of the correction mechanism 1. When the correction mechanism 1 is in the initial position, the height of the front end of the short arm 4 is lower than the height of the front end of the long arm 5. When the correction mechanism 1 of the automatic guide correction device provided in this application embodiment is in the initial position, the elastic component of the return mechanism 3 is in a state of natural extension or compression by the short arm 4, but the correction mechanism 1 and the return mechanism 3 maintain a force balance. That is, in this state, both the correction mechanism 1 and the return mechanism 3 remain stationary. At the same time, the height of the front end of the short arm 4 is lower than the height of the front end of the long arm 5, so that when the sheet 9 is being corrected, the sheet 9 can pass over the short arm 4 and contact the long arm 5. If the height of the front end of the short arm 4 is higher than the height of the front end of the long arm 5, the sheet 9 cannot contact the long arm 5 after passing over the short arm 4, thus failing to achieve the purpose of rotating the correction mechanism 1 by pushing the long arm 5. In the correction operation, the lower the height of the front end of the short arm 4 in the initial state, the better the correction mechanism 1 can be. The larger the correction range of the automatic guide correction device provided in the embodiments of this application, the greater the correction range. This is because the automatic guide correction device provided in the embodiments of this application uses a prying and rotating method for correction. The correction range of this application is the difference between the height of the front end of the short arm 4 when the line connecting the front end of the long arm 5 and the front end of the long arm 5 is parallel to the bottom of the sheet 9 and the height of the front end of the short arm 4 when the automatic guide correction device provided in the embodiments of this application is in the initial state. Since the height of the front end of the short arm 4 when the line connecting the front end of the short arm 4 and the front end of the long arm 5 is parallel to the bottom of the sheet 9 is a constant value, the lower the height of the front end of the short arm 4 in the initial state, the larger the correction range of the automatic guide correction device provided in the embodiments of this application.

[0029] As an optional embodiment, see [link to example]. Figure 1 and Figure 2 As shown, when the correction mechanism 1 is in the initial position, the height of the front end of the short arm 4 is lower than the height of the bottom surface of the sheet 9. If the height of the front end of the short arm 4 is higher than the height of the bottom surface of the sheet 9, the sheet 9 will directly contact the short arm 4, resulting in the sheet 9 being corrected independently by the short arm 4, which is inefficient. When the height of the front end of the short arm 4 is lower than the height of the bottom surface of the sheet 9, the sheet 9 can pass over the short arm 4 and contact the long arm 5. By pushing the long arm 5 to rotate, the short arm 4 is raised, and the sheet 9 is corrected.

[0030] As an optional embodiment, see [link to example]. Figure 1 and Figure 2As shown, the correction position of the correction mechanism 1 is when the front ends of both the short arm 4 and the long arm 5 are in contact with the sheet metal 9. When the correction mechanism 1 is in the correction position, the height of the front end of the short arm 4 is equal to the height of the front end of the long arm 5. When the correction mechanism 1 of the automatic guide correction device provided in this application is in the correction position, the sheet metal 9 abuts against the long arm 5 of the automatic guide correction device provided in this application, causing the elastic component of the return mechanism 3 to be in a stretched state and unable to return. At the same time, the sheet metal 9 is in contact with the front ends of the short arm 4 and the long arm 5, the height of the front end of the short arm 4 is equal to the height of the front end of the long arm 5, and the line connecting the front ends of the short arm 4 and the long arm 5 is parallel to the bottom surface of the sheet metal 9. At this time, the maximum correction height of the automatic guide correction device provided in this application has been reached, and the correction operation of the sheet metal 9 is completed.

[0031] As an optional embodiment, see [link to example]. Figure 1 and Figure 2 As shown, a limiting block 7 is installed below the long arm 5. The limiting block 7 can be connected to the long arm 5 and grounded below the long arm 5, or it can be installed on the ground below the long arm 5 to accommodate the correction mechanism for excessive rotation, making it difficult for the automatic guide correction device provided in this embodiment to reset, thereby reducing the probability of the automatic guide correction device provided in this embodiment jamming the sheet metal during the correction operation.

[0032] As an optional embodiment, see [link to example]. Figure 1 and Figure 2 As shown, when the correction mechanism 1 is in the correction position, the long arm 5 is connected to the limiting block 7. When the correction mechanism 1 is in the correction position, if the limiting block 7 is installed on the ground below the long arm 5, the long arm 5 and the limiting block 7 are connected; if the limiting block 7 is connected to the long arm 5 and installed below the long arm 5, the limiting block 7 is connected to the bottom surface. By limiting the size of the limiting block 7 to the space formed between the long arm 5 and the ground when the automatic guide correction device provided in this embodiment is in the correction position, the sheet 9 can be more accurately ensured to reach the preset correction height during the sheet correction operation, thereby improving the correction accuracy of the automatic guide correction device provided in this embodiment.

[0033] As an optional embodiment, see [link to example]. Figure 3As shown, the end of the correction mechanism 1 is provided with a guide wheel 8. After the front end of the sheet metal 9 passes the front end of the long arm 5 of the automatic guide correction device provided in this embodiment, it continues to move forward and contacts the guide wheel 8. The guide wheel 8 can further correct and adjust the sheet metal 9. At the same time, the automatic guide correction device provided in this embodiment can also drive the sheet metal to move. The guide wheel 8 and the sheet metal 9 have rolling friction, which generates small friction force, so that the automatic guide correction device provided in this embodiment further reduces the wear of the sheet metal 9 during the correction operation.

[0034] As an optional embodiment, see [link to example]. Figure 3 As shown, the top height of the guide wheel 8 is the same as the front height of the correction mechanism 1 when it is in the correction position. The apex of the guide wheel 8 is located on the line connecting the front end of the short arm 4 and the front end of the long arm 5 when the automatic guide correction device provided in this embodiment is in the correction position. This ensures that after the front end of the sheet metal 9 passes the front end of the long arm 5 and contacts the guide wheel 8, the guide wheel 8 can again ensure that the sheet metal 9 is in the designated correction position, thereby improving the correction accuracy of the automatic guide correction device provided in this embodiment.

[0035] As an optional embodiment, see [link to example]. Figure 1 and Figure 2 As shown, the elastic component includes a return spring, one end of which is connected to the short arm 4, and the other end of which is connected to the ground. The return spring is used to pull the short arm 4 to rotate in the opposite direction of the rotation direction during the correction operation after the sheet 9 has completely left the correction mechanism 1, until the elastic component returns to its initial state to prepare for the next correction of the sheet.

[0036] This application provides an automatic guidance and correction device, the specific implementation of which is as follows:

[0037] First, the automatic guiding and correction device provided in this application embodiment is assembled. The rotating arm of the correction mechanism 1 is fabricated according to a pre-designed engineering structure drawing. The rotating arm includes a short arm 4 and a long arm 5. A hole is made in the middle of the rotating arm, and a rotating pin 2 corresponding to the hole size is fabricated. The elastic component of the return mechanism 3, corresponding to the calculation results, is selected according to the engineering design. The stiffness coefficient and length of the elastic component are consistent with the engineering design. Then, the automatic guiding and correction device provided in this application embodiment is installed. The rotating pin 2 is installed together with the rotating arm. One end of the transmission pin is installed at a preset position on the fixed structure in the engineering, so that the rotating arm rotates around the rotating pin 3. One end of the elastic component of the return mechanism 3 is connected to the short arm 4 of the rotating arm, and the other end of the elastic component is fixed at a preset point on the ground. The positions of the correction mechanism 1 and the return mechanism 3 are further adjusted and checked to ensure that when the automatic guiding and correction device provided in this application embodiment is in place, the corrective mechanism is in place. When the automatic guide and correction device is in its initial position, i.e., when both the correction mechanism 1 and the return mechanism 3 are naturally stationary, the height of the front end of the short arm 4 is lower than the height of the front end of the long arm 5. This allows the sheet 9 to pass over the short arm 4 and contact the long arm 5 during the correction operation. At the same time, the height of the front end of the short arm 4 is lower than the bottom surface height of the sheet 9, allowing the sheet 9 to pass over the short arm 4 and contact the long arm 5. By pushing the long arm 5 to rotate, the short arm 4 is raised, and the sheet 9 is corrected. Next, a limiting block 7 is installed below the long arm 5 of the correction mechanism 1. The correction mechanism 1 is rotated so that the line connecting the front end of the short arm 4 and the front end of the long arm 5 is parallel to the horizontal line. At this time, the automatic guide and correction device provided in this embodiment is in the correction position. Then, the limiting block 7 is installed on the bottom surface, and the height of the limiting block 7 is adjusted so that in this state, the limiting block 7 just contacts the long arm 5 to limit the rotation of the long arm 5. Finally, a guide wheel 8 is installed at the end of an automatic guiding and correction device provided in this application embodiment to ensure that the top height of the guide wheel 8 is the same as the front height of the correction mechanism 1 when it is in the correction position.

[0038] During the correction operation of sheet metal 9, sheet metal 9 first passes the short arm 4, then continues to move forward, contacting and being blocked by the long arm 5 of the automatic guide correction device provided in this embodiment. Sheet metal 9 then pushes the long arm 5 to rotate around the rotating pin 2, indirectly causing the short arm 4 to rotate. The front end of the short arm 4 rises upward, simultaneously lifting sheet metal 9. While pushing the long arm 5 to rotate around the rotating pin 2, sheet metal 9 continues to move forward. When sheet metal 9 passes the front end of the long arm 5, the line connecting the front end of the short arm 4 and the front end of the long arm 5 is parallel to the bottom of sheet metal 9, and the long arm 5 contacts the limiting block 7. At this point, the correction of sheet metal 9 is completed. As sheet metal 9 continues to move forward until it completely leaves the automatic guide correction device provided in this application embodiment, the elastic component of the return mechanism 3 pulls the short arm 4 to rotate in the opposite direction of the rotation direction during the correction operation until the elastic component returns to its initial state, that is, the correction mechanism 1 is pulled back from the correction position to the initial state. During the process of sheet metal 9 continuing to move forward, it contacts the guide wheel 8, and the guide wheel 8 further corrects the sheet metal 9, improving the correction accuracy of the automatic guide correction device provided in this application embodiment, and at the same time reducing the loss of sheet metal 9 during transportation.

[0039] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0040] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An automatic guiding and deviation rectifying device, characterized in that, Comprising: a deviation rectifying mechanism (1) comprising a rotating arm, the rotating arm comprising a long arm (5) and a short arm (4) for being driven to rise after being driven to descend before the plate (9) contacts the front end of the long arm (5), the front end of the long arm (5) and the front end of the short arm (4) are upwardly arranged and mutually angled, a rotating pin (2) is arranged in the middle of the rotating arm to divide the rotating arm into the long arm (5) and the short arm (4); a return mechanism (3) comprising an elastic component for descending the short arm (4) to return after the plate (9) leaves the long arm (5); the initial position of the deviation rectifying mechanism (1) is when the deviation rectifying mechanism (1) does not contact the plate (9) and the deviation rectifying mechanism (1) and the return mechanism (3) are naturally static, when the deviation rectifying mechanism (1) is in the initial position, the height of the front end of the short arm (4) is lower than the height of the front end of the long arm (5); the deviation rectifying position of the deviation rectifying mechanism (1) is when the front end of the short arm (4) and the front end of the long arm (5) both contact the plate (9), when the deviation rectifying mechanism (1) is in the deviation rectifying position, the height of the front end of the short arm (4) is equal to the height of the front end of the long arm (5); a limiting block (7) is arranged below the long arm (5); when the deviation rectifying mechanism (1) is in the initial position, the height of the front end of the short arm (4) is lower than the height of the bottom surface of the plate (9); when the deviation rectifying mechanism (1) is in the deviation rectifying position, the long arm (5) contacts the limiting block (7).

2. An automatic guiding and correcting device as claimed in claim 1, characterized in that: The short arm (4) is located at the front end of the deviation rectifying mechanism (1), the long arm (5) is located at the rear end of the deviation rectifying mechanism (1), and the short arm (4) and the long arm (5) enclose a groove (6).

3. An automatic guiding and correcting device as claimed in claim 1, characterized in that: The deviation rectifying mechanism (1) is provided with a guide wheel (8) at the end.

4. An automatic guiding and correcting device as claimed in claim 3, characterized in that: The height of the top end of the guide wheel (8) is the same as the height of the front end of the deviation rectifying mechanism (1) when the deviation rectifying mechanism (1) is in the deviation rectifying position.

5. An automatic guiding and correcting device as claimed in claim 2, characterized in that: The elastic component comprises a return spring, one end of the return spring is connected with the short arm (4), and the other end of the return spring is connected with the ground.

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