CN111001681A - A Coaxiality Automatic Detection and Correction Mechanism Based on Magnetic Flux Changes - Google Patents

A Coaxiality Automatic Detection and Correction Mechanism Based on Magnetic Flux Changes Download PDF

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Publication number
CN111001681A
CN111001681A CN201911388731.7A CN201911388731A CN111001681A CN 111001681 A CN111001681 A CN 111001681A CN 201911388731 A CN201911388731 A CN 201911388731A CN 111001681 A CN111001681 A CN 111001681A
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coaxiality
workpiece
jaw chuck
deviation correction
detection
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Inventor
王匀
张�成
陈杰
李瑞涛
周建忠
李富柱
孟宪凯
郭俊
胡乔
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Jiangsu Gangyang Co Ltd
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Jiangsu Gangyang Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B7/31—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B7/312—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

本发明公开了一种基于磁通量变化的同轴度自动检测与纠偏机构，属于检测设备技术领域，主要包括工作台、夹持旋转机构、检测机构、纠偏机构及PC端控制机构。当待检测轴通过传感器所在区域时，由于同轴度误差会引起磁通量的变化，传感器记录磁通量变化数据并传回PC端控制机构，由此检测到磁通量变化时相对应的工件所在的位置，再由PC端控制机构控制三爪卡盘将所记录的工件的磁通量变化位置移送至纠偏机构，压头下压，从而达到同轴度的自动检测与纠偏的目的。本装置可自动检测轴类零件的同轴度误差并通过PC控制机构实现自动纠偏，具有结构简单、易操作，效率高等优点，以及很好的可视化和实用性，能有效减少工作人员的工作强度。

Figure 201911388731

The invention discloses an automatic coaxiality detection and deviation correction mechanism based on magnetic flux changes, belonging to the technical field of detection equipment, and mainly includes a worktable, a clamping and rotating mechanism, a detection mechanism, a deviation correction mechanism and a PC terminal control mechanism. When the axis to be detected passes through the area where the sensor is located, the magnetic flux will change due to the coaxiality error. The sensor records the magnetic flux change data and transmits it back to the PC-side control mechanism to detect the position of the corresponding workpiece when the magnetic flux changes. The three-jaw chuck is controlled by the PC-side control mechanism to transfer the recorded magnetic flux change position of the workpiece to the deviation correction mechanism, and the indenter is pressed down, so as to achieve the purpose of automatic detection and deviation correction of the coaxiality. The device can automatically detect the coaxiality error of shaft parts and realize automatic deviation correction through the PC control mechanism. It has the advantages of simple structure, easy operation, high efficiency, good visualization and practicability, and can effectively reduce the work intensity of the staff. .

Figure 201911388731

Description

Coaxiality automatic detection and deviation rectification mechanism based on magnetic flux change
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to an automatic coaxiality detection and correction mechanism.
Background
The coaxiality indicates a degree of deviation of the axis of the measured part from a reference axis, that is, a coaxial degree.
With the vigorous development of the mechanical industry, the qualification rate of shaft part products is always the key point of enterprise attention. In the field of machinery, coaxiality detection is usually required to be performed on parts, however, most of detection methods for coaxiality of parts in factories for large-scale production of shaft parts at the present stage are meter printing methods, the techniques of related operators are closely related, the efficiency is low, the accuracy is poor, the working strength of the operators is high, and particularly in batch production, the meter printing methods influence the production efficiency and have certain limitations.
Disclosure of Invention
Aiming at the problems of low efficiency, poor accuracy and the like in the existing manual detection technology, the invention provides the automatic coaxiality detection and correction mechanism which can finish the automatic detection and correction of the coaxiality of most shaft parts, adopts the PC end to control the movement of the workbench and the pressure head, has high precision, simple operation and good controllability, improves the accuracy of the coaxiality detection and correction result of shaft parts by a manufacturer, is favorable for improving the quality of a product and improves the production efficiency.
The present invention achieves the above-described object by the following technical means.
An automatic coaxiality detection and correction mechanism adopts the technical scheme that the mechanism comprises a workbench, a clamping and rotating mechanism, a detection mechanism, a correction mechanism and a PC (personal computer) end control mechanism; the clamping and rotating mechanism comprises a three-jaw chuck, a driving motor I and a three-jaw chuck base, is used for positioning and clamping a workpiece and is responsible for movement of the workpiece in a detection stage; the detection mechanism comprises a sensor bracket and a sensor, is used for detecting and recording the coaxiality error of the workpiece, and transmits a signal to the PC end; the deviation correcting mechanism comprises a pressure head connecting rod, a pressure head and a pressure head supporting plate and is used for detecting the deviation correcting work of the finished workpiece;
in the scheme, the number of the clamping and rotating mechanisms is 2, and the clamping and rotating mechanisms comprise three-jaw chucks, driving motors I and three-jaw chuck bases; the three-jaw chuck base is fixed on the workbench through double rows of guide rails and can do linear motion on the workbench; the driving motor I is fixedly connected to the three-jaw chuck base through a bolt; the three-jaw chuck is connected with the driving motor I through a bolt, and the starting and stopping of the pressure head connecting rod are controlled by the PC end control mechanism.
In the above scheme, the detection mechanism comprises a sensor support and a sensor, the sensor is fixed on the sensor support through bolt connection and is connected with the PC end control mechanism through a data line, the sensor support is fixed on the workbench through symmetrically distributed bolts, and a component capable of generating a magnetic field is arranged on the sensor support.
In the scheme, the pressure head and the pressure head connecting rod are connected through the bolt, the tail end of the pressure head connecting rod is matched with the groove in the pressure head supporting plate, the pressure head can integrally move up and down in a reciprocating mode along the groove direction, the pressure head connecting rod is started and stopped by the PC end through the driving motor III, and the pressure head supporting plate is welded on the workbench.
In the above scheme, the coaxiality detection devices are all arranged on the workbench.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can be used for automatically detecting the coaxiality error generated in the reprocessing process of the shaft parts, automatically corrects the detected error, and avoids manual error as workers only need to complete the feeding and discharging operation.
2. The invention has the advantages of simple structure, easy operation, high working efficiency, no requirements on the parameters of parts needing to be detected and strong universality.
3. The invention adopts the detection of the magnetic flux change to detect the position of the coaxiality error, and the detection precision can reach 0.1mm and is higher than other detection devices of the same type.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
In the figure:
1-workbench, 2-double-row guide rails, 3-pressure head support plate, 4-groove, 5-pressure head connecting rod, 6-pressure head, 7-three-jaw chuck, 8-driving motor I, 9-three-jaw chuck base, 10-sensor support, 11-sensor, 12-bolt, 13-initial point, 14-end point, 15-PC control mechanism, 16-driving motors III, 17-workpiece and 18-driving motor II.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1 and 2, an automatic coaxiality detection and correction mechanism comprises a workbench 1, a clamping and rotating mechanism, a detection mechanism, a correction mechanism and a PC end control mechanism 15; the clamping and rotating mechanism comprises a three-jaw chuck 7, a driving motor I and a three-jaw chuck base 9, is used for positioning and clamping a workpiece and is responsible for movement of the workpiece in a detection stage; the detection mechanism comprises a sensor bracket 10 and a sensor 11, is used for detecting and recording the coaxiality error of the workpiece, and transmits a signal to a PC end control mechanism 15; the deviation correcting mechanism comprises a pressure head connecting rod 5, a pressure head 6 and a pressure head supporting plate 3 and is used for detecting the deviation correcting work of the finished workpiece; the number of the clamping and rotating mechanisms is 2, and the clamping and rotating mechanisms comprise three-jaw chucks 7, driving motors I and three-jaw chuck bases 9; the three-jaw chuck base 9 is fixed on the workbench 1 through the double-row guide rail 2 and can do linear motion on the workbench 1; the driving motor I is fixedly connected with the three-jaw chuck base 9 through bolts; the three-jaw chuck 7 is connected with the driving motor I through a bolt, and the starting and stopping of the pressure head connecting rod 5 are controlled by the PC end control mechanism 15; the detection mechanism comprises a sensor support 10 and a sensor 11, the sensor 11 is fixedly connected to the sensor support 10 through bolts and is connected to a PC end control mechanism through a data line, the sensor support 10 is fixedly arranged on the workbench 1 through symmetrically distributed bolts 12, and a component capable of generating a magnetic field is arranged on the sensor support; the pressing head 6 is connected with one end of a pressing head connecting rod 5 through a bolt, the other end of the pressing head connecting rod 5 is matched with a groove in a pressing head supporting plate 3, so that the pressing head can reciprocate up and down along the direction of the groove, the pressing head connecting rod 5 is controlled by a PC end control mechanism 15 through a driving motor III, and the pressing head supporting plate 3 is welded on the workbench 1; the coaxiality detection device is arranged on the workbench 1.
The invention relates to a coaxiality automatic detection and correction mechanism, which comprises the following specific working processes:
1) clamping and fixing a workpiece 17 to be processed by two three-jaw chucks distributed on the double-row guide rail 2, and returning the three-jaw chucks to the initial point 13;
2) the device starts to operate, the three-jaw chuck 7 starts to rotate under the action of the driving motor I, and the three-jaw chuck base 9 moves linearly along the direction of the double-row guide rail 2 under the action of the driving motor II and slowly passes through a magnetic field generated below the sensor bracket 10;
3) due to coaxiality errors, different magnetic flux changes are caused when different positions of the workpiece 17 pass through a magnetic field, the three-jaw chuck stops when running to the termination point 14, the workpiece 17 passes through the magnetic field completely, and the change is converted into a signal by the sensor 11 and transmitted to the PC-end control mechanism 15 through a data line;
4) the PC end control mechanism 15 reversely pushes out the position with the maximum workpiece coaxiality error according to the change and the positions of the starting point 13 and the ending point 14, controls the three-jaw chuck base 9 to convey the position to the position under the pressure head 6, starts the driving motor III, and presses down the pressure head 6 to finish the deviation correction work of the workpiece;
5) after the correction work is finished, the workpiece 17 is taken down from the three-jaw chuck 7, and a new workpiece is clamped to perform the detection and correction of the next workpiece.
The present invention is not limited to the above-described embodiments, and any obvious modification, replacement or variation which can be made by those skilled in the art without departing from the spirit of the present invention falls within the scope of the present invention.

Claims (5)

1.一种基于磁通量变化的同轴度自动检测与纠偏机构，包括工作台(1)，其特征在于，还包括与PC端控制机构(15)信号控制连接的夹持旋转机构、检测机构及纠偏机构，所述夹持旋转机构包括三爪卡盘(7)，驱动电机Ⅰ(8)以及三爪卡盘底座(9)，所述检测机构包括传感器支架(10)与传感器(11)，所述的纠偏机构包括压头连杆(5)，压头(6)及压头支撑板(3)。1. A coaxiality automatic detection and deviation-correcting mechanism based on changes in magnetic flux, comprising a workbench (1), characterized in that it also comprises a clamping rotation mechanism, a detection mechanism and a signal-controlled connection with a PC-side control mechanism (15). A deviation correction mechanism, the clamping and rotating mechanism includes a three-jaw chuck (7), a drive motor I (8) and a three-jaw chuck base (9), and the detection mechanism includes a sensor bracket (10) and a sensor (11), The deflection rectification mechanism includes a pressure head connecting rod (5), a pressure head (6) and a pressure head support plate (3). 2.根据权利要求1所述的一种同轴度自动检测与纠偏机构，其特征在于，在同一轴心线上设有2个其结构相同的夹持旋转机构，置于与工件(17)其长度相适配位置，所述三爪卡盘底座(9)通过双排导轨(2)固定在工作台(1)上，所述驱动电机Ⅰ(8)通过螺栓连接固定在三爪卡盘底座(9)上；所述三爪卡盘(7)与驱动电机Ⅰ(8)通过螺栓连接。2. A coaxiality automatic detection and deviation correction mechanism according to claim 1, characterized in that, two clamping and rotating mechanisms with the same structure are arranged on the same axis line, which are placed on the same axis as the workpiece (17) Its length is adapted to the position, the three-jaw chuck base (9) is fixed on the worktable (1) through the double-row guide rails (2), and the drive motor I (8) is fixed on the three-jaw chuck by bolting. on the base (9); the three-jaw chuck (7) and the drive motor I (8) are connected by bolts. 3.根据权利要求1所述的一种同轴度自动检测与纠偏机构，其特征在于，所述检测机构包括传感器支架(10)与传感器(11)，所述传感器(11)通过螺栓连接固设于传感器支架(10)上，所述传感器支架(10)通过对称分布的螺栓(12)固定在工作台(1)上，在传感器支架(11)上设有产生磁场的部件。3. An automatic detection and deviation correction mechanism for coaxiality according to claim 1, wherein the detection mechanism comprises a sensor bracket (10) and a sensor (11), and the sensor (11) is fixedly connected by bolts It is arranged on a sensor bracket (10), the sensor bracket (10) is fixed on the worktable (1) by symmetrically distributed bolts (12), and a component for generating a magnetic field is arranged on the sensor bracket (11). 4.根据权利要求1所述的一种同轴度自动检测与纠偏机构，其特征在于，所述压头(6)与压头连杆(5)的一端通过螺栓连接，压头连杆(5)的另一端与压头支撑板(3)上的沟槽(4)配合，使压头整体可沿沟槽(4)方向作上下往复运动，压头连杆(5)通过驱动电机Ⅲ(16)与PC端控制机构(15)信号控制连接，压头支撑板(3)焊接固设于工作台(1)上。4. A coaxiality automatic detection and deviation correction mechanism according to claim 1, wherein the indenter (6) and one end of the indenter connecting rod (5) are connected by bolts, and the indenter connecting rod ( The other end of 5) is matched with the groove (4) on the indenter support plate (3), so that the indenter can reciprocate up and down along the direction of the groove (4), and the indenter connecting rod (5) is driven by the motor III (16) It is connected with the PC end control mechanism (15) for signal control, and the indenter support plate (3) is welded and fixed on the workbench (1). 5.如权利要求1所述的一种同轴度自动检测与纠偏机构，其特征在于，其同轴度自动检测与纠偏工艺过程包括以下步骤：5. a kind of coaxiality automatic detection and deviation correction mechanism as claimed in claim 1 is characterized in that, its coaxiality automatic detection and deviation correction technological process comprises the following steps: 1)将所需加工的工件(17)通过分布在双排导轨(2)上的两个三爪卡盘进行装夹固定，三爪卡盘归位到起始点(13)；1) The workpiece (17) to be processed is clamped and fixed by two three-jaw chucks distributed on the double-row guide rails (2), and the three-jaw chuck is returned to the starting point (13); 2)装置开始运行，三爪卡盘(7)在驱动电机Ⅰ(8)作用下开始旋转，三爪卡盘底座(9)在驱动电机Ⅱ(18)作用下沿双排导轨(2)方向作直线运动，缓慢通过传感器支架(10)；2) The device starts to run, the three-jaw chuck (7) starts to rotate under the action of the drive motor I (8), and the three-jaw chuck base (9) follows the direction of the double-row guide rail (2) under the action of the drive motor II (18). Make a linear motion and slowly pass the sensor bracket (10); 3)由于同轴度误差，使得工件(17)的不同位置在通过传感器支架(10)时引起不同的磁通量变化，三爪卡盘运行到终止点(14)时停止，此时工件(17)已全部通过磁场，传感器(11)将此磁通量变化转变为电信号通过数据线传递到PC端控制机构(15)；3) Due to the coaxiality error, different positions of the workpiece (17) cause different magnetic flux changes when passing through the sensor bracket (10), and the three-jaw chuck stops when it reaches the end point (14), and the workpiece (17) After all the magnetic fields have passed through, the sensor (11) converts this change in the magnetic flux into an electrical signal and transmits it to the PC-side control mechanism (15) through the data line; 4)PC端控制机构(15)根据此磁通量变化以及起始点(13)和终止点(14)的位置计算出工件同轴度误差最大的位置，启动驱动电机Ⅱ(18)，三爪卡盘底座(9)将此位置运送到压头(6)正下方，启动驱动电机Ⅲ(16),压头(6)下压完成工件的纠偏工作；4) The PC-side control mechanism (15) calculates the position with the largest workpiece coaxiality error according to the magnetic flux change and the positions of the starting point (13) and the ending point (14), and starts the drive motor II (18), the three-jaw chuck The base (9) transports this position to just below the indenter (6), starts the drive motor III (16), and the indenter (6) presses down to complete the work of correcting the workpiece; 5)纠偏工作完成后，将工件(17)从三爪卡盘(7)上取下，装夹新的工件进行下一工件检测与纠偏。5) After the deviation correction work is completed, the workpiece (17) is removed from the three-jaw chuck (7), and a new workpiece is clamped for the next workpiece detection and deviation correction.
CN201911388731.7A 2019-12-30 2019-12-30 A Coaxiality Automatic Detection and Correction Mechanism Based on Magnetic Flux Changes Pending CN111001681A (en)

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