Device for quickly calibrating various shearing blade opening degrees of a double shears

Abstract

The utility model relates to metallurgical equipment technical field discloses a kind of multiple shear blade opening degree devices of fast calibration of double-length shears, including mounting disc, the front side of mounting disc is fixedly installed with fixed plate, the front side of fixed plate is fixedly installed with semicircular seat, the inside of semicircular seat is provided with semicircle outer gear ring, the inside of semicircular seat is provided with the limiting component connected with semicircle outer gear ring, the front side of semicircular seat is equipped with arc hole, the inside of arc hole is close to middle part and is provided with sensor support, one end of sensor support is fixed with the side of semicircle outer gear ring, the top surface of sensor support is fixedly installed with proximity switch, and the device is engaged transmission by worm and semicircle outer gear ring, and the angle of proximity switch can be switched quickly with cooperation arc scale, without manually adjusting proximity iron or restarting equipment to calibrate zero, the quick and accurate switching of zero calibration when different specifications rolling can be realized.

Description

Technical Field

[0001] This application belongs to the field of metallurgical equipment technology, specifically a device for quickly calibrating the opening degree of multiple shear blades in a long-length shear. Background Technology

[0002] In the production scenario of double-high bar rolling, the finished product speed can reach up to 40m / s. When rolling small-sized steel, the linear speed of the switch of the multiple-length shear is high. The swing speed of the switch servo motor cannot match the speed of the multiple-length shear. As a result, the shearing action is completed before the switch is swung to the center position of the shear blade, which leads to two shearing marks on the shear blade. In severe cases, the shear blade may not be able to cut the finished product, causing the multiple-length shear to pile up steel.

[0003] To solve this problem, in actual production, a common practice is to have the shear blade rotate to 0° and then send a swing signal to the switch via a proximity switch. The shear blade must complete the zeroing operation at the pre-positioned position. However, the existing operating method involves manually adjusting the shear blade opening to zero, which requires manual operation every time the multiple-length shear is stopped and restarted. This is labor-intensive and affects production stability. On the other hand, adjusting the relative position of the proximity switch and the proximity iron can achieve automatic zeroing of the control table after the multiple-length shear restarts. However, the space for the proximity signal position is narrow, the adjustment process is time-consuming and laborious, and the shear disc will rotate during the adjustment, affecting the accuracy of zeroing. Furthermore, manual adjustment is required every time the rolling specifications are changed. Meanwhile, in the automatic zeroing process, the shear blade must first be rotated to the designated position, then the proximity iron is adjusted to the signal position, and then the locking nut is tightened and manually rotated for testing. However, during the tightening process, the shear blade rotates under force, and the proximity iron also rotates accordingly, causing positional deviations. The zeroing accuracy is difficult to guarantee, which cannot meet the demand for rapid and accurate switching of the zeroing angle when rolling different specifications in double-high bar double-line production. It also cannot solve the pain points of manual zeroing, which wastes manpower, has poor accuracy in adjusting the proximity iron, and is inconvenient to operate. Therefore, a device for quickly calibrating multiple shear blade opening degrees with multiple-length shears is provided. Utility Model Content

[0004] The purpose of this application is to provide a device for quickly calibrating various blade opening sizes of a multiple-length shear in order to solve the problems mentioned above.

[0005] The technical solution adopted in this application is as follows: A device for quickly calibrating multiple blade opening degrees of a double-length shear includes a mounting plate. A fixing plate is fixedly mounted on the front side of the mounting plate. A semi-circular seat is fixedly mounted on the front side of the fixing plate. A semi-circular external gear ring is provided inside the semi-circular seat. A limiting component connected to the semi-circular external gear ring is provided inside the semi-circular seat. An arc-shaped hole is opened on the front side of the semi-circular seat. A sensor bracket is provided near the center of the arc-shaped hole. One end of the sensor bracket is fixed to one side of the semi-circular external gear ring. A proximity switch is fixedly mounted through the top surface of the sensor bracket. A bracket is fixedly mounted on the side of the mounting plate near the fixing plate. A mounting housing is fixedly mounted on one end of the bracket. A worm gear is rotatably connected inside the mounting housing through a bearing. The worm gear meshes with the semi-circular external gear ring.

[0006] In a preferred embodiment, the limiting component includes a limiting protrusion and a connecting groove. The limiting protrusion is symmetrically and fixedly installed on the inner side wall of the semi-circular seat. The connecting groove corresponding to the limiting protrusion is symmetrically opened on the side of the semi-circular external gear ring. The limiting protrusion is inserted into the inside of the connecting groove.

[0007] In a preferred embodiment, an arc-shaped scale is fixedly installed on the front side of the semi-circular seat above the arc-shaped hole.

[0008] In a preferred embodiment, the front side of the mounting plate has a plurality of mounting holes arranged in a circumferential array, and a rubber pad is fixedly mounted on the rear side of the mounting plate.

[0009] In a preferred embodiment, one end of the worm extends to the outside of the mounting housing, and a rotating head is fixedly mounted on the end of the worm extending to the outside of the mounting housing.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: 1. In this application, due to the adoption of the above-mentioned scheme, the operator first rotates the rotating head, causing it to drive the rotating worm gear to rotate. At this time, the worm gear, through meshing transmission with the semi-circular external gear ring, can drive the semi-circular external gear ring to rotate along an arc trajectory within the semi-circular seat. It also slides synchronously within the connecting groove through the limiting protrusion, which can effectively limit the movement direction of the semi-circular external gear ring and prevent it from deviating. When the semi-circular external gear ring rotates, it will drive the sensor bracket to move synchronously along the arc-shaped hole, thereby facilitating the adjustment of the angle of the proximity switch on the sensor bracket. At this time, the operator can observe the arc-shaped scale on the front side of the semi-circular seat, accurately align the proximity switch with the target position, stop rotating the rotating head, and use the self-locking characteristic of the worm gear to keep the position of the proximity switch fixed, thus achieving accurate positioning of the proximity switch. This device can achieve rapid and accurate switching of zero position calibration during rolling of different specifications without the need for manual adjustment of the proximity iron or restarting the equipment for zeroing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the semi-circular seat structure of this application; Figure 3 This is a schematic diagram of the semi-circular external gear ring structure of this application; Figure 4 For the purposes of this application Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the worm gear structure of this application.

[0012] The markings in the diagram are: 1. Mounting plate; 2. Fixing plate; 3. Semi-circular seat; 4. Semi-circular external gear ring; 5. Arc-shaped hole; 6. Sensor bracket; 7. Proximity switch; 8. Bracket; 9. Mounting housing; 10. Limiting component; 101. Limiting protrusion; 102. Connecting groove; 11. Worm gear; 12. Arc-shaped scale; 13. Mounting hole; 14. Rubber pad; 15. Rotating head. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] refer to Figures 1-5 As shown, a device for quickly calibrating multiple blade opening sizes of a reciprocating scissor includes a mounting plate 1. The front side of the mounting plate 1 has a plurality of mounting holes 13 arranged in a circular array, and a rubber pad 14 is fixedly mounted on the rear side of the mounting plate 1. The mounting plate 1 can be connected to the fixed base of the reciprocating scissor blade disc, achieving stable assembly between the device and the reciprocating scissor body. The circular array of mounting holes 13 facilitates the installation of the mounting plate 1 by passing bolts through its interior. The rubber pad 14 buffers vibrations during connection with the reciprocating scissor, preventing wear of components due to rigid contact.

[0015] refer to Figures 1-5As shown, a fixing plate 2 is fixedly installed on the front side of the mounting plate 1, and a semi-circular seat 3 is fixedly installed on the front side of the fixing plate 2. A semi-circular external gear ring 4 is provided inside the semi-circular seat 3, and a limiting component 10 connected to the semi-circular external gear ring 4 is provided inside the semi-circular seat 3. The limiting component 10 includes a limiting protrusion 101 and a connecting groove 102. The limiting protrusion 101 is symmetrically fixedly installed on the inner side wall of the semi-circular seat 3, and the connecting groove 102 corresponding to the limiting protrusion 101 is symmetrically opened on the side of the semi-circular external gear ring 4. The limiting protrusion 101 is inserted into the connecting groove 102. The interior of the connecting groove 102; the fixed plate 2 provides stable support for the semi-circular seat 3, ensuring that its relative position with the mounting plate 1 is fixed. The arc structure of the semi-circular seat 3 can adapt to the movement trajectory of the semi-circular external gear ring 4, providing reasonable space for subsequent angle adjustment. The insertion and cooperation between the limiting protrusion 101 and the connecting groove 102 can limit the movement direction of the semi-circular external gear ring 4 and prevent it from axially shifting during adjustment, avoiding a decrease in angle adjustment accuracy due to component misalignment.

[0016] refer to Figures 1-5 As shown, an arc-shaped hole 5 is provided on the front side of the semi-circular base 3. A sensor bracket 6 is provided near the center of the arc-shaped hole 5. One end of the sensor bracket 6 is fixed to one side of the semi-circular external gear ring 4. A proximity switch 7 is fixedly installed on the top surface of the sensor bracket 6. An arc-shaped scale 12 is fixedly installed on the front side of the semi-circular base 3 above the arc-shaped hole 5. The arc-shaped hole 5 provides guidance for the movement of the sensor bracket 6, ensuring that it always moves along a fixed trajectory when rotating with the semi-circular external gear ring 4. The sensor bracket 6 is fixedly connected to the semi-circular external gear ring 4, which facilitates the subsequent synchronous angle adjustment of the proximity switch 7 and the semi-circular external gear ring 4 without the need to adjust the position of the proximity switch separately. The sensing distance of the proximity switch 7 can be selected according to the needs of on-site debugging. The proximity switch 7 is an existing structure, and this application only uses it without improving its structure. It will not be described in detail here. The arc-shaped scale 12 allows personnel to intuitively display the real-time angle of the proximity switch 7.

[0017] refer to Figures 1-5As shown, a bracket 8 is fixedly installed on the side of the mounting plate 1 near the fixed plate 2. A mounting housing 9 is fixedly installed at one end of the bracket 8. A worm gear 11 is rotatably connected inside the mounting housing 9 through a bearing. The worm gear 11 meshes with a semi-circular external gear ring 4. One end of the worm gear 11 extends to the outside of the mounting housing 9, and a rotating head 15 is fixedly installed at the end of the worm gear 11 extending to the outside of the mounting housing 9. The bracket 8 and the mounting housing 9 provide stable support for the worm gear 11. The bearing connection ensures smooth rotation of the worm gear 11. The meshing transmission between the worm gear 11 and the semi-circular external gear ring 4 has a large worm gear reduction ratio and strong self-locking. The rotating head 15 allows personnel to easily drive the semi-circular external gear ring 4 to rotate, reducing the labor intensity of workers. After adjustment, the worm gear self-locking can prevent the semi-circular external gear ring 4 from rotating on its own due to vibration, ensuring the stability of the position of the proximity switch 7. The mounting housing 9 protects the meshing part between the worm gear 11 and the semi-circular external gear ring 4, preventing dust and iron filings at the rolling site from affecting the transmission accuracy.

[0018] The implementation principle of the device for quickly calibrating multiple blade opening degrees of a double-length shear in this application is as follows: The user first passes the mounting plate 1 through the mounting hole 13 with a bolt and connects it to the threaded hole on the shear blade plate fixing base to achieve the fixed installation of the mounting plate 1, thereby completing the stable connection between the device and the double-length shear body. Subsequently, personnel can rotate the worm gear 11 by holding the rotating head 15 according to the rolling specifications. At this time, the worm gear 11, through meshing with the semi-circular external gear ring 4, can drive the semi-circular external gear ring 4 to rotate along an arc-shaped trajectory within the semi-circular seat 3. During this process, the limiting protrusion 101 in the limiting component 10 slides synchronously within the connecting groove 102, which can effectively limit the movement direction of the semi-circular external gear ring 4 and prevent it from deviating. When the semi-circular external gear ring 4 rotates, it will drive the sensor bracket 6 to move synchronously along the arc-shaped hole 5, thereby facilitating the adjustment of the angle of the proximity switch 7 on the sensor bracket 6. At this time, personnel can accurately align the proximity switch 7 with the target setting by observing the arc-shaped scale 12 on the front side of the semi-circular seat 3. After positioning, stop rotating the rotating head 15 and use the self-locking characteristic of the worm gear 11 to keep the position of the proximity switch 7 fixed, achieving precise positioning of the proximity switch. After debugging, the double-length shear is started. During the rotation of the shear blade, the proximity switch 7 will detect the proximity signal of the shear blade at a preset angle and then send a swing command to the switch, causing the switch to swing to the center position of the shear blade in advance, avoiding two shear marks on the shear blade due to the delayed response of the switch. If it is necessary to change the rolling specification later, simply rotate the rotating head 15 again and quickly switch the angle of the proximity switch 7 through the arc-shaped scale 12. There is no need to manually adjust the proximity iron or restart the equipment to zero, which can achieve rapid and accurate switching of zero position calibration when rolling different specifications.

[0019] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for quickly calibrating multiple blade opening degrees of a double-length shear, comprising a mounting plate, characterized in that: A fixing plate is fixedly installed on the front side of the mounting plate, and a semi-circular seat is fixedly installed on the front side of the fixing plate. A semi-circular external gear ring is provided inside the semi-circular seat, and a limiting component connected to the semi-circular external gear ring is provided inside the semi-circular seat. An arc-shaped hole is opened on the front side of the semi-circular seat, and a sensor bracket is provided near the center inside the arc-shaped hole. One end of the sensor bracket is fixed to one side of the semi-circular external gear ring. A proximity switch is fixedly installed through the top surface of the sensor bracket. A bracket is fixedly installed on the side of the mounting plate near the fixing plate, and a mounting housing is fixedly installed at one end of the bracket. A worm gear is rotatably connected inside the mounting housing through a bearing, and the worm gear meshes with the semi-circular external gear ring.

2. The device for quickly calibrating multiple blade opening degrees of a double-length shear as described in claim 1, characterized in that: The limiting component includes a limiting protrusion and a connecting groove. The limiting protrusion is symmetrically and fixedly installed on the inner side wall of the semi-circular seat. The connecting groove corresponding to the limiting protrusion is symmetrically opened on the side of the semi-circular external gear ring. The limiting protrusion is inserted into the inside of the connecting groove.

3. The device for quickly calibrating multiple blade opening degrees of a double-length shear as described in claim 1, characterized in that: An arc-shaped scale is fixedly installed on the front side of the semi-circular seat above the arc-shaped hole.

4. The device for quickly calibrating multiple blade opening degrees of a double-length shear as described in claim 1, characterized in that: The front side of the mounting plate has multiple mounting holes arranged in a circular array, and a rubber pad is fixedly installed on the rear side of the mounting plate.

5. The device for quickly calibrating multiple blade opening degrees of a double-length shear as described in claim 1, characterized in that: One end of the worm extends to the outside of the mounting housing, and a rotating head is fixedly mounted on the end of the worm extending to the outside of the mounting housing.

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