Circle shear backlash adjusting structure

Abstract

The utility model relates to a circle shear backlash adjusting structure which effectively solves the problems that an existing circle shear backlash adjusting structure is complex, low in adjusting repeated precision and poor in stability, the backlash of a circle shear cannot be accurately adjusted conveniently, and shearing precision is affected. According to the circle shear backlash adjusting structure, the driving mechanism drives the backlash adjusting mechanism to rotate, the backlash adjusting mechanism can rotate in the U-shaped groove, the cutter sleeve can be pushed to transversely reciprocate according to the assembly design between the U-shaped groove and the backlash adjusting mechanism, and therefore circle shear backlash adjustment is achieved, and the circle shear backlash adjusting structure is simple in overall structure, stable and reliable in adjusting mode and high in practicability. The problems of deviation and instability caused by deformation of a structural part and rigidity of a bearing are effectively solved, the adjustment precision of the backlash can be improved in the mode that the cutter sleeve is pushed to move through eccentric action, the repeated adjustment precision is high, and therefore the adjustment precision of the backlash of the circle shear can be improved, and the size precision and the overall quality of a sheared product can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to disc shearing machine technical field, concretely relates to a disc shearing side gap adjusting structure. BACKGROUND

[0002] Disc shearing machine has wide application in metallurgical rolling industry, is mainly used for cutting off the edge defect of steel plate or strip, improves the edge quality of product, guarantees the dimensional accuracy of product. The factors that influence disc shearing quality have many, and shear blade side gap is a very important factor.

[0003] At present, disc shearing side gap adjusting device has two ways of manual adjustment and automatic adjustment, the former precision is lower, and the efficiency is low;And the existing disc shearing side gap automatic adjusting structure is more, generally speaking, the structure is more complex, the rigidity of assembly gap, bearing, linear guide to disc shearing side gap precision, stability has certain influence, leading to the low repeat accuracy of adjustment, poor stability, it is inconvenient to carry out accurate adjustment to disc shearing side gap, thereby influence shearing precision. UTILITY MODEL CONTENTS

[0004] In view of above situation, in order to overcome the defects of prior art, the utility model provides a disc shearing side gap adjusting structure, the overall structure of the disc shearing side gap adjusting structure is simple, the adjustment mode is stable and reliable, effectively avoids the problems of deviation and instability caused by structural deformation and the rigidity of bearing, the adjustment precision of side gap can be improved by the mode that eccentric action promotes cutter bush movement, the repeat accuracy of adjustment is high, thereby the adjustment precision of disc shearing side gap can be improved, the dimensional accuracy and overall quality of sheared product are improved.

[0005] A disc shearing side gap adjusting structure, including frame and cutter shaft for installing cutter head, the upper surface of frame is provided with driving mechanism and the output end of driving mechanism is provided with side gap adjusting mechanism, the outside of cutter shaft is fixedly installed with bearing and is rotationally connected with cutter bush through bearing, the lower surface of frame is abutted with cutter bush and the part corresponding to the outer surface of side gap adjusting mechanism is provided with circumferentially U-shaped groove around the outside of cutter bush, the bottom of side gap adjusting mechanism is arranged in the inside of U-shaped groove.

[0006] Preferably, the driving mechanism includes servo motor and speed reducer, the speed reducer is fixedly installed on the upper surface of frame and the output end is arranged in the inside of frame, the servo motor is installed on the top of speed reducer and is drivingly connected with the output end through driving shaft.

[0007] Preferably, the side gap adjusting mechanism includes eccentric shaft and taper sleeve, the eccentric shaft is connected on the output end of speed reducer through spline and is arranged in the inside of frame, the taper sleeve is fixedly installed on the bottom of eccentric shaft and the taper sleeve is vertically arranged in the inside of U-shaped groove.

[0008] Preferably, the vertical section of the taper sleeve and the U-shaped groove are both inverted isosceles trapezoid, the diameter of the taper sleeve is matched with the width of the U-shaped groove and the taper sleeve is fully inserted into the U-shaped groove.

[0009] Preferably, the number of bearings is three and the three bearings are all installed inside the cutter sleeve, the cutter shaft is arranged inside the three bearings and is rotationally connected with the cutter sleeve through the bearings.

[0010] Preferably, the frame is fixedly connected with the machine body of the external disc shear, one end of the cutter shaft is connected with the driving structure of the external disc shear through the spline, the bottom of the frame is attached to the upper surface of the cutter sleeve and the two are relatively movable.

[0011] The above technical scheme has the beneficial effects of:

[0012] The disc shear side gap adjusting structure is provided with the driving mechanism, the side gap adjusting mechanism, the cutter sleeve and the U-shaped groove, the driving mechanism drives the side gap adjusting mechanism to rotate, the side gap adjusting mechanism can rotate in the U-shaped groove, the cutter sleeve can be pushed to reciprocate horizontally according to the assembly design between the U-shaped groove and the side gap adjusting mechanism, so that the disc shear side gap adjusting is realized, the overall structure of the mechanism is simple, the adjusting mode is stable and reliable, the problems of the deviation and instability caused by the deformation of the structural parts and the rigidity of the bearings are effectively avoided, the adjustment precision of the side gap is improved through the mode of pushing the cutter sleeve to move by the eccentric action, the repeated precision of the adjustment is high, so that the adjustment precision of the disc shear side gap is improved and the size precision and overall quality of the sheared products are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view schematic diagram of the utility model in a section state;

[0014] Fig. 2 It is a side view schematic diagram of the utility model in a section state.

[0015] In the drawing: 1, frame; 2, cutter shaft; 3, driving mechanism; 301, servo motor; 302, speed reducer; 4, side gap adjusting mechanism; 401, eccentric shaft; 402, taper sleeve; 5, bearing; 6, cutter sleeve; 7, U-shaped groove. DETAILED DESCRIPTION

[0016] The foregoing and other technical contents, features and effects of the utility model are described below in combination with the accompanying drawings. Figs. 1-2 The embodiment is described in detail.

[0017] The embodiment provides a disc shear side gap adjusting structure, as shown in the accompanying drawings. Figs. 1-2As shown, including rack 1 and for installing cutter disc cutter shaft 2, rack 1 is fixedly connected to the body of the external disc shear, and forms an integral structure with the disc shear, the upper surface of the rack 1 is provided with a driving mechanism 3, the driving mechanism 3 includes a servo motor 301 and a speed reducer 302, the speed reducer 302 is fixedly installed on the upper surface of the rack 1 and the output end is arranged in the interior of the rack 1, the servo motor 301 is installed on the top of the speed reducer 302 and is drivingly connected with it through a driving shaft, the servo motor 301 is electrically connected with the external circuit through wires; the servo motor 301 can drive the speed reducer 302 to rotate, the speed reducer 302 can reduce the rotating speed of the driving shaft of the servo motor 301 through its internal structure, increase the torque, thereby slow down the overall rotating speed of the side gap adjusting mechanism 4;

[0018] The output end of the driving mechanism 3 is provided with a side gap adjusting mechanism 4, the side gap adjusting mechanism 4 includes an eccentric shaft 401 and a taper sleeve 402, the eccentric shaft 401 is connected with the output end of the speed reducer 302 through spline and arranged in the interior of the rack 1, the taper sleeve 402 is fixedly installed on the bottom of the eccentric shaft 401 and the taper sleeve 402 is vertically arranged in the interior of the U-shaped groove 7, the vertical section of the taper sleeve 402 and the U-shaped groove 7 is an inverted isosceles trapezoid, the diameter of the taper sleeve 402 is matched with the width of the U-shaped groove 7 and is completely inserted in the interior of the U-shaped groove 7;

[0019] One end of the cutter shaft 2 is connected with the driving structure of the external disc shear through spline, the external driving structure can drive the cutter shaft 2 to rotate in the cutter sleeve 6, the outer surface of the cutter shaft 2 is fixedly installed with a bearing 5 and the cutter sleeve 6 is rotatably connected with the bearing 5, the number of the bearing 5 is three and the three bearings 5 are all installed in the interior of the cutter sleeve 6, the cutter shaft 2 is arranged in the interior of the three bearings 5 and is rotatably connected with the cutter sleeve 6 through the bearing 5, the cutter sleeve 6 abuts against the lower surface of the rack 1, the bottom of the rack 1 is attached with the upper surface of the cutter sleeve 6 and the two can relatively move, the outer surface of the cutter sleeve 6 is provided with a circumferential U-shaped groove 7 around the outer surface of the cutter sleeve 6, the bottom of the side gap adjusting mechanism 4 is arranged in the interior of the U-shaped groove 7, the servo motor 301 can drive the eccentric shaft 401 to rotate through the speed reducer 302, thereby the taper sleeve 402 at the bottom of the eccentric shaft 401 can rotate in the U-shaped groove 7, since the width of the U-shaped groove 7 in the same direction of the axis of the cutter shaft 2 is matched with the taper sleeve 402 and the two sides perpendicular to the axis of the cutter shaft 2 are both interconnected grooves, therefore when the eccentric shaft 401 and the taper sleeve 402 rotate, only the thrust in the same direction of the axis of the cutter shaft 2 is applied to the cutter sleeve 6, thereby the cutter sleeve 6 can be linearly reciprocated along the axis direction of the cutter shaft 2, the purpose of adjusting the disc shear side gap is achieved, and the moving precision of the cutter sleeve 6 can be more finely adjusted through the slow rotation of the eccentric shaft 401, the side gap adjusting precision and the repeat precision are improved.

[0020] In summary, the disc shear side gap adjusting structure, the use steps are as follows:

[0021] 1. By servo motor 301 driving reduction gear 302 to rotate, it drives eccentric shaft 401 and taper sleeve 402 to rotate slowly, which can make taper sleeve 402 rotate in U-shaped groove 7 to drive cutter sleeve 6 to move;

[0022] 2. Since taper sleeve 402 rotates in U-shaped groove 7 on cutter sleeve 6, the width of U-shaped groove 7 in the same direction of cutter shaft 2 axis is matched with taper sleeve 402, and the two sides perpendicular to cutter shaft 2 axis are both interconnected grooves, so when eccentric shaft 401 and taper sleeve 402 rotate, only the same direction thrust as cutter shaft 2 axis direction is applied to cutter sleeve 6, so as to push cutter sleeve 6 to move linearly reciprocating along cutter shaft 2 axis direction, according to the required adjustment direction, controlling eccentric shaft 401 and taper sleeve 402 to rotate to the corresponding side, the cutter sleeve 6 can be finely adjusted, so as to improve the adjustment accuracy of disc shear.

[0023] The above is only for illustrating the present application, it should be understood that the present application is not limited to the above embodiments, various modifications in accordance with the present application idea are all within the protection scope of the present application.

Claims

1. A side gap adjusting structure of a flying shear, comprising a frame (1) and a blade shaft (2) for mounting a blade disc, characterized in that: The upper surface of the frame (1) is provided with a driving mechanism (3), and the output end of the driving mechanism (3) is provided with a side gap adjusting mechanism (4), the outer part of the cutter shaft (2) is fixedly provided with a bearing (5), and the cutter sleeve (6) is rotatably connected through the bearing (5), the cutter sleeve (6) abuts against the lower surface of the frame (1), and the outer surface of the cutter sleeve (6) is provided with a circumferential U-shaped groove (7) surrounding the outer part of the cutter sleeve (6) at the position corresponding to the side gap adjusting mechanism (4), and the bottom of the side gap adjusting mechanism (4) is arranged in the U-shaped groove (7).

2. The side gap adjustment structure of a flying shear according to claim 1, wherein: The driving mechanism (3) comprises a servo motor (301) and a speed reducer (302), the speed reducer (302) is fixedly arranged on the upper surface of the frame (1) and the output end penetrates the inside of the frame (1), and the servo motor (301) is arranged on the top of the speed reducer (302) and is drivingly connected with the speed reducer (302) through a driving shaft.

3. The side gap adjustment structure of a flying shear according to claim 2, wherein: The side gap adjusting mechanism (4) comprises an eccentric shaft (401) and a taper sleeve (402), the eccentric shaft (401) is connected with the output end of the speed reducer (302) through a spline and penetrates the inside of the frame (1), and the taper sleeve (402) is fixedly arranged on the bottom of the eccentric shaft (401) and vertically penetrates the inside of the U-shaped groove (7).

4. The side gap adjustment structure of a flying shear according to claim 3, wherein: The vertical section of the taper sleeve (402) and the U-shaped groove (7) is an inverted isosceles trapezoid, the diameter of the taper sleeve (402) is matched with the width of the U-shaped groove (7) and is completely inserted into the inside of the U-shaped groove (7).

5. The side gap adjustment structure of a flying shear according to claim 1, wherein: The number of the bearings (5) is three, and the three bearings (5) are arranged in the inside of the cutter sleeve (6), the cutter shaft (2) penetrates the inside of the three bearings (5) and is rotatably connected with the cutter sleeve (6) through the bearings (5).

6. The side gap adjustment structure of a flying shear according to claim 1, wherein: The frame (1) is fixedly connected with the body of an external disc shearing machine, one end of the cutter shaft (2) is connected with the driving structure of the external disc shearing machine through a spline, the bottom of the frame (1) is attached with the upper surface of the cutter sleeve (6), and the two are relatively movable.

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