A correcting tool for pipe and plate workpieces

Abstract

The application relates to a correcting tool for pipes and plates, comprising a platform. The upper surface of the platform is provided with two fixing seats and a sliding rail, the center line of the connecting line between the two fixing seats serving as a correcting baseline, the sliding rail being parallel to the correcting baseline, the sliding rail being slidingly connected with a measuring device for measuring the distance perpendicular to the correcting baseline, and the upper surface of the platform being further provided with an expansion plate, the expansion direction of the expansion plate being perpendicular to the extension direction of the correcting baseline. The two fixing seats on the upper surface of the platform are provided, and the connecting line between the two fixing seats serves as the correcting baseline of the to-be-corrected piece. The bending degree of the to-be-corrected piece placed on the fixing seat is measured by moving the measuring device, and is corrected by the expansion plate.

Description

Technical Field

[0001] This application relates to the field of calibration equipment technology, and in particular to a calibration fixture for pipe and plate workpieces. Background Technology

[0002] Tubes and plates may be bent after manufacturing, requiring correction. This necessitates a measurement and correction process for newly manufactured parts. In existing technologies, this process is performed by specialized equipment and procedures, resulting in low efficiency. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this application is to provide a calibration fixture for pipe and plate workpieces, including a platform. The upper surface of the platform is provided with two fixed seats and a slide rail. The center line connecting the two fixed seats serves as the calibration baseline, and the extension direction of the slide rail is parallel to the extension direction of the calibration baseline. A measuring device is slidably connected to the slide rail, and the measuring direction of the measuring device is perpendicular to the extension direction of the calibration baseline. The upper surface of the platform is also provided with a telescopic plate, the extension direction of which is perpendicular to the extension direction of the calibration baseline.

[0004] Preferably, the measuring device includes a base slidably connected to a slide rail, two support blocks connected to the base, a transmission screw connected between the two support blocks, the extension direction of the transmission screw being perpendicular to the extension direction of the calibration baseline, a movable seat connected to the transmission screw, a transmission nut fixedly provided on the movable seat cooperating with the transmission screw, and a measuring scale connected to the movable seat.

[0005] Preferably, the movable base is connected to the measuring ruler via a connector.

[0006] Preferably, the support block is connected to two guide rods parallel to the transmission lead screw, and both guide rods are slidably connected to the moving seat.

[0007] Preferably, the lead screw passes through the support block in a direction away from the calibration baseline, and a handle is connected to the end of the lead screw passing through the support block.

[0008] Preferably, both mounting bases consist of two mounting plates connected to the upper surface of the platform.

[0009] Preferably, the telescopic drive mechanism of the telescopic plate is a hydraulic drive mechanism.

[0010] Preferably, the upper surface of the platform is provided with a second slide rail, the extension direction of the second slide rail is parallel to the extension direction of the correction baseline, and the telescopic plate is connected to a telescopic base, the telescopic base is slidably connected to the second slide rail.

[0011] In summary, this application includes the following beneficial technical effects: Two fixed seats are provided on the surface of the platform, and the connection between the two fixed seats serves as a calibration baseline for the part to be calibrated. By setting a track parallel to the calibration baseline, the distance between the measuring device on the track and the calibration baseline can be kept constant, facilitating the determination of the reference value for the distance measurement value from the measuring device to the part to be calibrated. That is, after determining the reference value for the distance measurement value, an actual distance measurement value exceeding the set error range indicates that the measured part is bent. Subsequently, for the bent part, a telescopic plate extends and presses, causing the bent part to deform, thereby correcting the bent part to be calibrated. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention;

[0013] Figure 2 This is an enlarged view of the measuring device's structure;

[0014] Figure 3 This is a top view of the present invention.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. Platform; 2. Fixed base; 3. Slide rail; 4. Measuring device; 401. Base; 402. Transmission screw; 403. Moving base; 404. Measuring ruler; 5. Telescopic plate; 6. Second slide rail; 7. Telescopic base. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] The following is in conjunction with the appendix Figure 1-3This application provides a further detailed description. Embodiments of this application disclose a calibration fixture for pipe and plate workpieces, including a platform 1. The upper surface of the platform 1 is provided with two fixed seats 2 and a slide rail 3. The line connecting the slide rail 3 and the two fixed seats 2 is parallel, and the center line of the line connecting the two fixed seats 2 is the calibration baseline for a straight pipe as the workpiece to be calibrated. A measuring device 4 is slidably connected to the slide rail 3, and the measuring direction of the measuring device 4 is perpendicular to the extension direction of the calibration baseline. The upper surface of the platform 1 is also provided with a telescopic plate 5, and the telescopic direction of the telescopic plate 5 is perpendicular to the extension direction of the calibration baseline. By placing both ends of the pipe or plate to be calibrated into the two fixed seats 2 respectively, and by moving the measuring device 4 along the slide rail 3, the straight-line distance between a specific part of the workpiece to be calibrated and the measuring device 4 is measured, obtaining a distance measurement value. The distance measurement values ​​of the parts of the workpiece to be calibrated that are fixed by the fixed seats 2 at both ends are used as reference distance values. When the distance measurement value of the selected measurement part in the middle of the workpiece to be calibrated is the same as the reference distance value, it indicates that the workpiece to be calibrated is straight and does not require calibration. When the distance measurement value of the selected measurement point in the middle of the part to be corrected differs from the reference distance measurement value, it indicates that the part to be corrected is bent and needs correction. Adjust the position of the bent part of the tube to be corrected so that the bent part is close to the telescopic plate 5. The extension of the telescopic plate 5 squeezes the bent part of the tube to be corrected, thereby correcting it. Then, the correction effect is confirmed by the measuring device 4.

[0019] Furthermore, the measuring device 4 includes a base 401 slidably connected to the slide rail 3. Specifically, the base 401 has a groove that mates with the slide rail 3. The movement direction of the base 401 is restricted by the mating surface between the groove and the slide rail 3, allowing the measuring device 4 to slide along the extension direction of the slide rail 3 and change its measurement position relative to the workpiece to be calibrated. The structure in the measuring device 4 that performs the measurement function can be a conventional existing technology such as a laser rangefinder. However, since the surface of the workpiece to be calibrated, such as a pipe, may have irregular surfaces that are not conducive to laser ranging, the laser rangefinder may malfunction. In this embodiment, the structure in the measuring device 4 that performs the measurement function is a measuring ruler 404. The physical measurement function of the measuring ruler 404 ensures that any workpiece to be calibrated can be measured. The measuring ruler 404 can be a conventional physical measuring device 4 such as a micrometer or vernier caliper. To allow the measuring ruler 404 to change the distance between itself and the workpiece to be calibrated, it is designed to accommodate workpieces with different degrees of curvature. Two support blocks are connected to the base 401, and a transmission screw 402 connects the two support blocks. The transmission screw 402 is rotatably connected to the two support blocks via conventional technologies such as bearings or bushings. The extension direction of the transmission screw 402 is perpendicular to the extension direction of the slide rail 3, that is, the extension direction of the transmission screw 402 is also perpendicular to the extension direction of the calibration baseline. The transmission screw 402 is driven by a movable seat 403, which is provided with a nut that mates with the transmission screw 402. A measuring scale 404 is connected to the movable seat 403. By rotating the transmission screw 402, the position of the movable seat 403 is controlled, allowing the measuring scale 404 connected to the movable seat 403 to move closer to or away from the part to be calibrated.

[0020] Furthermore, to enable the measuring scale 404 to have more measuring postures to accommodate parts of different specifications to be calibrated, the movable base 403 is connected to the measuring scale 404 via a connector. The connector can be configured with a suitable shape according to the actual situation. For example, the movable base 403 can be connected to one end of a rigid link, and the other end of the rigid link can be connected to the measuring scale 404; the movable base 403 can also be connected to a rigid link, which can then be connected to another rigid link via a universal joint, hinge, or other movable means, and then connected to the measuring scale 404, thus enabling the measuring scale 404 to have more measuring postures.

[0021] Furthermore, the support block is connected to two guide rods parallel to the transmission screw 402. Both guide rods are slidably connected to the movable seat 403, and the two guide rods are distributed on both sides of the transmission screw 402. Specifically, the movable seat 403 has two grooves that are slidably connected to the two guide rods respectively, which can support the movable seat 403 while ensuring that the movable seat 403 can move along the extension direction of the transmission screw 402.

[0022] Furthermore, both fixing bases 2 consist of two fixing plates connected to the upper surface of platform 1. The end of the part to be calibrated is placed between the two fixing plates to fix it in place. Specifically, the two fixing plates can be two fixedly connected fixing plates specifically designed for the part to be calibrated. Alternatively, one fixing plate can be fixedly connected to the upper surface of platform 1, while the other fixing plate is movably fixedly connected to the upper surface of platform 1. For example, the upper surface of platform 1 has a strip-shaped hole, and the movable fixing plate has a connecting post passing through the strip-shaped hole. A locking nut is connected to the connecting post after it passes through the strip-shaped hole. By aligning the extension direction of the strip-shaped hole towards the fixedly connected fixing plate, the movable fixing plate can be moved towards the fixedly connected fixing plate. After movement, the locking nut is used to lock it in place. When the fixed base 2 adopts a movable fixed plate, both fixed bases 2 include a fixed plate, and the movable fixed plates in the two fixed bases 2 correspond to each other to ensure that the center line connecting the two fixed bases 2 can move simultaneously with the movement of the movable fixed plates in the two fixed bases 2, so that the calibration baseline is always at the center line position of the connection between the two fixed bases 2.

[0023] Furthermore, the telescopic drive mechanism of the telescopic plate 5 can adopt conventional linear drive devices such as hydraulic cylinders, pneumatic cylinders, and electric push rods. In this embodiment, the telescopic drive mechanism of the telescopic plate 5 is a hydraulic drive mechanism.

[0024] Furthermore, the telescopic plate 5 and the drive device controlling the telescopic plate 5 can be set in a fixed position, and the position of the part to be corrected can be adjusted so that the telescopic plate 5 can press the bent part of the part to be corrected. Alternatively, a second slide rail 6 can be provided on the upper surface of the platform 1, and the extension direction of the second slide rail 6 is parallel to the extension direction of the correction baseline. Specifically, the telescopic plate 5 is connected to a telescopic base 7, and the telescopic base 7 has a groove that slides with the second slide rail 6. Through the sliding connection between the telescopic base 7 and the second slide rail 6, the telescopic plate 5 can change its position relative to the upper surface of the platform 1, thereby allowing the telescopic plate 5 to press different positions of the part to be corrected without moving the part to be corrected. The movable connection between the telescopic base 7 and the second slide rail 6 can be the same as the connection between the base 401 of the measuring device 4 and the slide rail 3, or other conventional existing technologies can be used.

[0025] Furthermore, to facilitate the control of the rotation of the transmission screw 402 and thus the movement of the movable seat 403, the transmission screw 402 extends through the support block in a direction away from the fixed seat 2, and a handle is connected to one end of the transmission screw 402 that passes through the support block.

[0026] Working Principle: The two ends of the part to be calibrated are placed on two fixed seats 2. The measuring device 4 slides along the slide rail 3 to one of the fixed seats 2, and measures the distance between the part to be calibrated and the measuring device 4 at the fixed seat 2. The distance between the part to be calibrated and the measuring device 4 at the other fixed seat 2 is then measured. Subsequently, the distance between a selected portion of the middle area of ​​the part to be calibrated and the measuring device 4 is measured. When the distance measurement corresponding to the portion of the part to be calibrated placed on both fixed seats 2 is the same as the distance measurement of the selected portion, it indicates that the part to be calibrated does not need calibration and is straight. When the distance measurement corresponding to the portion of the part to be calibrated placed on both fixed seats 2 is different from the distance measurement of the selected portion, it indicates that the selected portion of the part to be calibrated is bent. The part to be calibrated is adjusted so that the protruding part of the bent selected portion faces the telescopic plate 5. The telescopic plate 5 extends and applies force to press the selected protruding portion of the part to be calibrated, causing the selected protruding portion to undergo reverse plastic deformation due to compression, thus achieving the purpose of straightening. The measurement device 4 is then used to repeat the test until the required standard is met. The number and specific locations of the selected parts of the component to be calibrated are chosen according to actual needs, as are the error ranges of the distance measurement values. In particular, when the distance measurement values ​​corresponding to the portions of the component to be calibrated placed on the two fixing seats 2 are different, especially when these two distance measurement values ​​exceed the set error range, the component to be calibrated cannot be placed on both fixing seats 2 simultaneously. That is, if the component to be calibrated can be placed on both fixing seats 2, it indicates that the positions of the two ends of the component to be calibrated are within an acceptable error range. Otherwise, the component to be calibrated is unqualified and should be reworked without needing to be placed on the fixing seats 2 for calibration. The device embodiment described above is merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of this embodiment.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this application, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A straightening fixture for pipe or plate-type workpieces, characterized in that, The system includes a platform (1), on the upper surface of which are provided two fixed seats (2) and a slide rail (3). The center line connecting the two fixed seats (2) serves as the calibration baseline. The extension direction of the slide rail (3) is parallel to the extension direction of the calibration baseline. The slide rail (3) is slidably connected to a measuring device (4). The measuring direction of the measuring device (4) is perpendicular to the extension direction of the calibration baseline. The upper surface of the platform (1) is also provided with a telescopic plate (5). The telescopic direction of the telescopic plate (5) is perpendicular to the extension direction of the calibration baseline.

2. The alignment fixture for pipe and plate workpieces according to claim 1, characterized in that, The measuring device (4) includes a base (401) slidably connected to the slide rail (3), two support blocks are connected on the base (401), and a transmission screw (402) is connected between the two support blocks. The extension direction of the transmission screw (402) is perpendicular to the extension direction of the calibration baseline. The transmission screw (402) is connected to a movable seat (403), and the movable seat (403) is fixedly provided with a transmission nut that cooperates with the transmission screw (402). The movable seat (403) is connected to a measuring ruler (404).

3. The alignment fixture for pipe and plate workpieces according to claim 2, characterized in that, The movable base (403) is connected to the measuring ruler (404) via a connector.

4. The alignment fixture for pipe and plate workpieces according to claim 2, characterized in that, The support block is connected to two guide rods parallel to the transmission screw (402), and both guide rods are slidably connected to the movable seat (403).

5. The alignment fixture for pipe and plate workpieces according to claim 2, characterized in that, The drive screw (402) passes through the support block in a direction away from the correction baseline, and a handle is connected to the end of the drive screw (402) that passes through the support block.

6. The alignment fixture for pipe and plate workpieces according to claim 1, characterized in that, Both of the aforementioned mounting bases (2) consist of two mounting plates connected to the upper surface of the platform (1).

7. The alignment fixture for pipe and plate workpieces according to claim 1, characterized in that, The telescopic drive mechanism of the telescopic plate (5) is a hydraulic drive mechanism.

8. The alignment fixture for pipe and plate workpieces according to claim 7, characterized in that, The platform (1) has a second slide rail (6) on its upper surface. The extension direction of the second slide rail (6) is parallel to the extension direction of the correction baseline. The telescopic plate (5) is connected to a telescopic base (7), and the telescopic base (7) is slidably connected to the second slide rail (6).

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