阅读说明：本技术 基于数控机床的棒材供给装置的控制方法 (Control method of bar feeding device based on numerical control machine tool ) 是由 不公告发明人 于 2019-10-08 设计创作，主要内容包括：本发明公开了基于数控机床的棒材供给装置的控制方法,属于机械加工领域,基于数控机床的棒材供给装置的控制方法,所涉及的棒材供给装置包括棒材仓,用于充当存储器具,在棒材仓的出口端安装有转动盖板,在转动盖板的内侧壁上设有缓冲垫,该转动盖板的转轴位于棒材仓出口端的下边缘处,在棒材仓出口端的下方固定有棒材导轨,在棒材导轨上安装有主轴电机,在主轴电机的顶部设有渐变挡板,在主轴电机的输出轴上安装有换向齿轮组,它可以实现安全有效的对棒材进行供给,不仅节省了人力资源,且降低了安全隐患,提高了机械加工的安全性,还在大批量加工时减少了棒材更换的时间,提高了加工效率。(The invention discloses a control method of a bar feeding device based on a numerical control machine, belonging to the field of machining, the control method of the bar feeding device based on the numerical control machine comprises a bar bin used as a storage device, a rotating cover plate is arranged at the outlet end of the bar bin, a buffer pad is arranged on the inner side wall of the rotating cover plate, a rotating shaft of the rotating cover plate is positioned at the lower edge of the outlet end of the bar bin, a bar guide rail is fixed below the outlet end of the bar bin, a spindle motor is arranged on the bar guide rail, a gradual change baffle is arranged at the top of the spindle motor, a reversing gear set is arranged on an output shaft of the spindle motor, the bar feeding device can realize safe and effective bar feeding, not only saves human resources, but also reduces potential safety hazards, improves the safety of machining, and reduces the time for replacing bars in large-scale machining, the processing efficiency is improved.)

1. Control method of bar feeding device based on digit control machine tool, its characterized in that: the method comprises the following specific steps:

s1, bar feeding: placing a plurality of raw material workpieces in a bar material supply device of a numerical control machine tool;

s2, blanking of bars: controlling a bar material supply device of the numerical control machine tool to operate by a numerical control system, so that a raw material workpiece falls on a feeding device of the numerical control machine tool;

s3, finishing blanking: after a certain time interval, the numerical control system controls a bar feeding device of the numerical control machine to finish blanking and seals the bar feeding device of the numerical control machine;

s4, centering feed: after blanking is finished, the numerical control system reduces the rotating speed of the main shaft, performs centering clamping on a raw material workpiece, and then resumes normal-speed feeding;

s5, feed suspension: after feeding for a certain distance, the numerical control system controls the feeding device to pause feeding the raw material workpiece and keeps the raw material workpiece to rotate;

s6, resetting and blanking: after the raw material workpiece is processed, the numerical control system controls the feeding device to reset, and the bar feeding device of the numerical control machine repeats the blanking step.

2. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 1, wherein: the bar feeding device comprises a bar bin (1), a rotary cover plate (2) is installed at the outlet end of the bar bin (1), a cushion pad (21) is arranged on the inner side wall of the rotary cover plate (2), a rotary shaft of the rotary cover plate (2) is located at the lower edge position of the outlet end of the bar bin (1), a bar guide rail (8) is fixed below the outlet end of the bar bin (1), a spindle motor (3) is installed on the bar guide rail (8), a gradual change baffle (4) is arranged at the top of the spindle motor (3), a reversing gear set (5) is installed on an output shaft of the spindle motor (3), one end, far away from the spindle motor (3), of an output shaft of the spindle motor (3) is connected with a spindle (6), an output end of the reversing gear set (5) is connected with a speed reducer (14), and a telescopic rod (13) is installed at, and the spindle motor (3) is connected with the side wall of the speed reducer (14) through the telescopic rod (13), the output shaft of the speed reducer (14) is connected with the feed gear (11), the circle center position of the feed gear (11) is provided with a gear mounting hole (12) in an interference fit manner, the gear mounting hole is in interference fit with the output shaft of the speed reducer (14), the bar guide rail (8) is provided with a feed groove, the side wall of the feed groove is fixedly provided with a rack (81), the rack (81) is meshed with the feed gear (11), the bar guide rail (8) is provided with a bar (7), one end of the bar (7) close to the spindle motor (3) is provided with a centering hole in an opening manner, one end of the bar (7) far away from the spindle motor (3) is provided with a telescopic cylinder (10), the motion end of the telescopic cylinder (10) is connected with a clamping piece (9), and the clamping piece (9) is abutted to the, the side department that holding piece (9) and rod (7) pasted mutually is equipped with concatenation arc board (91), install a plurality of universal ball (92) on concatenation arc board (91).

3. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 1, wherein: in the step S1, the positions of the centering holes of the bar (7) are the same and are all located at one end far away from the clamping piece (9).

4. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 1, wherein: in the step S2, the rotating cover plate (2) is connected to the bar bin (1) by a hinge.

5. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 1, wherein: in step S3, the time interval between the end of the reverse rotation and the start of the forward rotation of the spindle motor (3) is the time when the single rod (7) falls on the rod guide rail (8).

6. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 1, wherein: in the step S4, when the main shaft (6) rotates at a low speed, the main shaft (6) enters the centering hole of the bar (7), so that the bar (7) coincides with the central axis of the main shaft (6), and the main shaft (6) drives the bar (7) to rotate synchronously.

7. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 1, wherein: in the step S6, after the bar (7) stops rotating, the clamping piece (9) is opened, the bar is taken down by the mechanical fixture, and the spindle motor (3) is separated from the rotating cover plate (2).

8. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 2, wherein: and viscose glue is filled between the buffer pad (21) and the inner side wall of the rotary cover plate (2).

9. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 2, wherein: the main shaft (6) is in clearance fit with the centering hole.

10. The control method of a numerically controlled machine tool-based bar feeding apparatus according to claim 2, wherein: the splicing arc plate (91) is formed by splicing a plurality of arc plates, and the radiuses of the arc plates are sequentially increased from inside to outside.

Technical Field

The invention relates to the field of machining, in particular to a control method of a bar feeding device based on a numerical control machine tool.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, which are conventionally referred to as machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization.

When the existing numerical control machine tool carries out bar machining, manual feeding and material changing are mostly carried out, so that not only is manpower wasted, but also certain danger is caused in material changing.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a control method of a bar feeding device based on a numerical control machine tool, which can realize safe and effective feeding of bars, not only saves human resources, but also reduces potential safety hazards, improves the safety of machining, reduces the time for replacing the bars during large-scale machining, and improves the machining efficiency.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The control method of the bar feeding device based on the numerical control machine tool comprises the following specific steps:

s1, bar feeding: placing a plurality of raw material workpieces in a bar material supply device of a numerical control machine tool;

s2, blanking of bars: controlling a bar material supply device of the numerical control machine tool to operate by a numerical control system, so that a raw material workpiece falls on a feeding device of the numerical control machine tool;

s3, finishing blanking: after a certain time interval, the numerical control system controls a bar feeding device of the numerical control machine to finish blanking and seals the bar feeding device of the numerical control machine;

s4, centering feed: after blanking is finished, the numerical control system reduces the rotating speed of the main shaft, performs centering clamping on a raw material workpiece, and then resumes normal-speed feeding;

s5, feed suspension: after feeding for a certain distance, the numerical control system controls the feeding device to pause feeding the raw material workpiece and keeps the raw material workpiece to rotate;

s6, resetting and blanking: after the raw material workpiece is processed, the numerical control system controls the feeding device to reset, and the bar feeding device of the numerical control machine repeats the blanking step.

Further, the bar feeding device comprises a bar bin, a rotary cover plate is installed at the outlet end of the bar bin, a cushion pad is arranged on the inner side wall of the rotary cover plate, a rotary shaft of the rotary cover plate is located at the lower edge of the outlet end of the bar bin, a bar guide rail is fixed below the outlet end of the bar bin, a spindle motor is installed on the bar guide rail, a gradual change baffle is arranged at the top of the spindle motor, a reversing gear set is installed on an output shaft of the spindle motor, one end, far away from the spindle motor, of the output shaft of the spindle motor is connected with a spindle, the output end of the reversing gear set is connected with a speed reducer, a telescopic rod is installed at one end, close to the speed reducer, of the spindle motor, the spindle motor is connected with the side wall of the speed reducer through the, this gear mounting hole and the output shaft interference fit of reduction gear, it has the feed chute to cut on the rod guide rail, fixed mounting has the rack on the lateral wall of feed chute, this rack and feed gear engagement, the rod has been placed on the rod guide rail, the rod closes on spindle motor's one end and cuts there is the centering hole, spindle motor's one end is kept away from to the rod is equipped with telescopic cylinder, telescopic cylinder's motion end is connected with the holding piece, and this holding piece supports on the rod, the side department that the holding piece pasted mutually with the rod is equipped with the concatenation crown plate, install a plurality of universal balls on the concatenation crown plate.

Further, in step S1, the positions of the centering holes of the bars are the same and are all located at one end away from the clamping piece.

Further, in step S2, the rotating cover plate is connected to the rod bin by a hinge.

Further, in step S3, the time interval between the end of the reverse rotation and the start of the forward rotation of the spindle motor is the time when the single rod falls on the rod guide.

Further, in the step S4, when the main shaft rotates at a low speed, the main shaft enters the centering hole of the bar material, so that the bar material coincides with the central axis of the main shaft, and the main shaft drives the bar material to rotate synchronously.

Further, in step S6, after the bar stops rotating, the clamping piece is opened, the mechanical fixture takes down the bar, and the spindle motor is disengaged from the rotating cover plate.

Furthermore, viscose is filled between the buffer pad and the inner side wall of the rotary cover plate.

Further, the main shaft is in clearance fit with the centering hole.

Furthermore, the splicing arc plates are formed by splicing a plurality of arc plates, and the radiuses of the arc plates are sequentially increased from inside to outside.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

this scheme can realize safe effectual supplying with the rod, has not only saved manpower resources, and has reduced the potential safety hazard, has improved machining's security, still adds the time that has reduced the rod and change in big batch man-hour, has improved machining efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a clamping mechanism according to the present invention;

FIG. 3 is a schematic view of the feeding mechanism of the present invention;

FIG. 4 is a schematic view of a spindle motor according to the present invention;

FIG. 5 is a schematic view of the feeding mechanism of the present invention;

FIG. 6 is a schematic view of a clamping piece according to the present invention.

The reference numbers in the figures illustrate:

1 rod storehouse, 2 rotation apron, 3 spindle motor, 4 gradual change baffles, 5 reversing gear group, 6 main shafts, 7 rods, 8 rod guide rails, 9 holding pieces, 10 telescopic cylinder, 11 feed gears, 12 gear mounting holes, 13 telescopic rods, 14 speed reducers, 21 blotter, 81 racks, 91 concatenation arc boards, 92 universal ball.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.