CN214173162U

CN214173162U - Mechanical product geometric accuracy quality inspection system based on LabVIEW

Info

Publication number: CN214173162U
Application number: CN202022909688.9U
Authority: CN
Inventors: 韦欢文; 黄才贵; 蒋正忠; 庞湘萍
Original assignee: Nanning University
Current assignee: Nanning University
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-09-10
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a mechanical product geometric accuracy quality inspection system based on LabVIEW, including signal conditioning circuit, data acquisition card, computer, LabVIEW software system, drive circuit, geometric accuracy detection device, install LabVIEW software system in the computer, and the computer connects gradually drive circuit, geometric accuracy detection device through LabVIEW software system, and the signal input part of computer connects gradually data acquisition card, signal conditioning circuit, geometric accuracy detection device. The utility model discloses can realize the integration of on-line monitoring, collection, demonstration and the processing of mechanical product geometric accuracy quality testing process, replace the full control of traditional artifical appraisal process to the system has good human-computer interaction interface, guarantees rationality and the accuracy of data processing result, makes the process of adjusting monitoring point position steady, reliable.

Description

Mechanical product geometric accuracy quality inspection system based on LabVIEW

Technical Field

The utility model belongs to the machining measuring equipment field especially relates to a mechanical product geometric accuracy quality inspection system based on LabVIEW.

Background

The geometric precision of mechanical products dominates product development, and the excellent geometric precision influences development cost and product quality through a whole set of processes of structural design, processing technological rule formulation, processing process, assembly and the like of the mechanical products. And a strict, standard and efficient quality inspection and detection system is indispensable for ensuring the geometric accuracy of the product. On the premise of strict and normative inspection, the efficiency of inspection and detection affects the cycle and cost of product development. At present, a plurality of inspection and detection devices for the geometric accuracy of mechanical products are old, inspection and detection technologies and methods are more traditional, and a lot of inspection and detection devices rely on manual operation and data analysis and calculation, so that the inspection efficiency of the mechanical products is low, the intelligent development is not facilitated, and rapid and efficient data acquisition, monitoring and analysis inspection cannot be performed.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a mechanical product geometric accuracy quality inspection system based on LabVIEW can solve prior art mechanical product inspection inefficiency and be unfavorable for intelligent development, can't carry out the problem of quick, efficient data acquisition, control and analysis inspection.

The utility model discloses a following technical scheme can realize.

The utility model provides a pair of mechanical product geometric accuracy quality inspection system based on LabVIEW, including signal conditioning circuit, data acquisition card, computer, LabVIEW software system, drive circuit, geometric accuracy detection device, install LabVIEW software system in the computer, and the computer connects gradually drive circuit, geometric accuracy detection device through LabVIEW software system, and the signal input part of computer connects gradually data acquisition card, signal conditioning circuit, geometric accuracy detection device.

Geometric accuracy detection device includes the base, the base both ends are equipped with vertical A and vertical B, and vertical A upper portion is equipped with the fixing base, and fixing base one side is equipped with fixed top, and vertical B upper portion is equipped with the guide holder, is equipped with the rack on the guide holder, rack and guide holder sliding connection, and guide holder one side is equipped with adjusts the seat, is equipped with adjusting motor B on adjusting the seat, and adjusting motor B is through adjusting wheel and rack connection, and rack one end is equipped with movable top.

The geometric accuracy detection device further comprises a sliding rail and a digital dial indicator, the sliding rail is fixed to the upper portion of the base, a hinged support A and a hinged support B are arranged at two ends of the sliding rail respectively, a screw rod is arranged between the hinged support A and the hinged support B, an adjusting motor A is arranged on the hinged support A, an output shaft of the adjusting motor A is connected with the screw rod, a sliding seat is arranged on the screw rod, the middle of the sliding seat is in threaded connection with the screw rod, the lower portion of the sliding seat is in sliding connection with the sliding rail, the upper portion of the sliding seat is connected with the digital dial indicator through an adjusting frame, and the digital dial indicator is connected with a signal conditioning circuit through a wire.

The LabVIEW software system comprises a data acquisition module, a data processing module, a data display module, a data storage module and a control module, wherein the data acquisition module, the data processing module, the data display module, the data storage module and the control module are sequentially connected in series.

The connecting lines of the fixed center, the movable center and the rack are on the same straight line.

The sliding rail is parallel to the rack.

And the driving circuit is electrically connected with the adjusting motor A and the adjusting motor B through leads respectively.

And the adjusting motor A and the adjusting motor B are both servo motors.

The data acquisition card is connected with the computer through a USB interface.

And a rotating shaft is arranged in the middle of the adjusting frame.

The beneficial effects of the utility model reside in that:

1. the integration of on-line monitoring, acquisition, display and processing of the mechanical product geometric precision quality inspection process can be realized, the full monitoring of the traditional manual identification process is replaced, and the system has a good human-computer interaction interface;

2. the system can adopt an advanced computer data automatic processing method to ensure the rationality and accuracy of data processing results;

3. the system can adjust the position of the detection point through automatic control, so that the process of adjusting the position of the detection point is stable and reliable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the adjustment block;

in the figure: 1-a signal conditioning circuit, 2-a data acquisition card, 3-a computer, 4-a LabVIEW software system, 5-a driving circuit, 41-a data acquisition module, 42-a data processing module, 43-a data display module, 44-a data storage module, 45-a control module, 61-a rack, 62-an adjusting seat, 63-a guide seat, 64-a movable center, 65-a digital dial indicator, 66-an adjusting frame, 67-a fixed center, 68-a fixed seat, 69-a vertical frame A, 610-a hinged support A, 611-an adjusting motor A, 612-a sliding seat, 613-a screw rod, 614-a sliding rail, 615-a hinged support B, 616-a vertical frame B, 617-an adjusting motor B, 618-a base and 619-an adjusting gear.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1 and 2, a mechanical product geometric precision quality inspection system based on LabVIEW comprises a signal conditioning circuit 1, a data acquisition card 2, a computer 3, a LabVIEW software system 4, a driving circuit 5 and a geometric precision detection device, wherein the LabVIEW software system 4 is installed in the computer 3, the computer 3 is sequentially connected with the driving circuit 5 and the geometric precision detection device through the LabVIEW software system 4, and a signal input end of the computer 3 is sequentially connected with the data acquisition card 2, the signal conditioning circuit 1 and the geometric precision detection device.

When the digital dial indicator is used, the control module 45 sends an instruction to control the driving circuit 5, so that the adjusting motor B617 rotates to drive the movable center 64 to move, a measured workpiece is clamped by the movable center 64 and the fixed center 67, then the adjusting motor A611 drives the screw 613 to rotate, the sliding seat 612 is driven to move on the sliding rail 614, the measuring position of the digital dial indicator 65 is adjusted today, after measurement is carried out, the digital dial indicator 65 converts a measuring signal through the signal conditioning circuit 1, the measuring signal is sent to the computer 3 through the data acquisition card 2, and data processing, display and storage are carried out in the LabVIEW software system 4.

The geometric accuracy detection device comprises a base 618, two ends of the base 618 are provided with a vertical frame A69 and a vertical frame B616, the upper portion of a vertical frame A69 is provided with a fixed seat 68, one side of the fixed seat 68 is provided with a fixed center 67, the upper portion of the vertical frame B616 is provided with a guide seat 63, the guide seat 63 is provided with a rack 61, the rack 61 is in sliding connection with the guide seat 63, one side of the guide seat 63 is provided with an adjusting seat 62, the adjusting seat 62 is provided with an adjusting motor B617, the adjusting motor B617 is connected with the rack 61 through an adjusting gear 619, one end of the rack 61 is provided with a movable center 64, the adjusting motor B617 can drive the rack 61 to move through the adjusting gear 619 after rotating, a measured workpiece can be clamped through the movable center 64 and the fixed center 67, the workpiece is prevented from moving during measurement, and meanwhile, the measurement can be carried out by taking the fixed center 67 as a coordinate origin.

The geometric accuracy detection device further comprises a sliding rail 614 and a digital dial indicator 65, the sliding rail 614 is fixed on the upper portion of the base 618, two ends of the sliding rail 614 are respectively provided with a hinged support A610 and a hinged support B615, a screw rod 613 is arranged between the hinged support A610 and the hinged support B615, an adjusting motor A611 is arranged on the hinged support A610, an output shaft of the adjusting motor A611 is connected with the screw rod 613, the screw rod 613 is provided with a sliding seat 612, the middle portion of the sliding seat 612 is in threaded connection with the screw rod 613, the lower portion of the sliding seat 612 is in sliding connection with the sliding rail 614, the upper portion of the sliding seat 612 is connected with the digital dial indicator 65 through an adjusting frame 66, the digital dial indicator 65 is connected with the signal conditioning circuit 1 through a conducting wire, and during measurement, the adjusting motor A611 drives the screw rod 613 to rotate, so that the sliding seat 612 is driven to move on the sliding rail 614, the position of the digital dial indicator 65 can be controlled, and different positions of a workpiece can be conveniently measured.

The LabVIEW software system 4 comprises a data acquisition module 41, a data processing module 42, a data display module 43, a data storage module 44 and a control module 45, wherein the data acquisition module 41, the data processing module 42, the data display module 43, the data storage module 44 and the control module 45 are sequentially connected in series, the LabVIEW software system adopts a LabVIEW2012 version, the data acquisition module 41 is used for receiving data from the data acquisition card 2, the data processing module 42 is used for converting the data, the data display module 43 is used for displaying measured data on a computer, the data storage module 44 is used for storing the data, and the control module 45 is used for sending an instruction to the driving circuit 5.

The connecting line of the fixed center 67, the movable center 64 and the rack 61 is a straight line, so that the rack 61 can be conveniently moved to clamp the workpiece.

The sliding rail 614 is parallel to the rack 61, so that the measuring precision is improved.

The driving circuit 5 is electrically connected with the adjusting motor a611 and the adjusting motor B617 through wires, so that the driving circuit 5 can control the start and stop of the adjusting motor a611 and the adjusting motor B617.

The adjusting motor A611 and the adjusting motor B617 are both servo motors, and the servo motors can accurately control the rotating speed and the number of turns, so that the measuring precision is improved conveniently.

The data acquisition card 2 is connected with the computer 3 through a USB interface.

The middle part of the adjusting frame 66 is provided with a rotating shaft, so that the position of the digital dial indicator 65 can be conveniently adjusted.

Claims

1. A mechanical product geometric accuracy quality inspection system based on LabVIEW is characterized in that: the device comprises a signal conditioning circuit (1), a data acquisition card (2), a computer (3), a LabVIEW software system (4), a driving circuit (5) and a geometric precision detection device, wherein the LabVIEW software system (4) is installed in the computer (3), the computer (3) is sequentially connected with the driving circuit (5) and the geometric precision detection device through the LabVIEW software system (4), and a signal input end of the computer (3) is sequentially connected with the data acquisition card (2), the signal conditioning circuit (1) and the geometric precision detection device.

2. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 1, wherein: geometric accuracy detection device includes base (618), base (618) both ends are equipped with vertical A (69) and vertical B (616) of putting up, vertical A (69) upper portion of putting up is equipped with fixing base (68), fixing base (68) one side is equipped with fixed top (67), vertical B (616) upper portion of putting up is equipped with guide holder (63), be equipped with rack (61) on guide holder (63), rack (61) and guide holder (63) sliding connection, and guide holder (63) one side is equipped with adjusts seat (62), be equipped with on adjusting seat (62) and adjust motor B (617), adjust motor B (617) and be connected with rack (61) through adjusting gear (619), rack (61) one end is equipped with movable top (64).

3. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 2, wherein: the geometric accuracy detection device further comprises a sliding rail (614) and a digital dial indicator (65), the sliding rail (614) is fixed to the upper portion of the base (618), two ends of the sliding rail (614) are respectively provided with a hinged support A (610) and a hinged support B (615), a screw rod (613) is arranged between the hinged support A (610) and the hinged support B (615), the hinged support A (610) is provided with an adjusting motor A (611), an output shaft of the adjusting motor A (611) is connected with the screw rod (613), the screw rod (613) is provided with a sliding seat (612), the middle of the sliding seat (612) is in threaded connection with the screw rod (613), the lower portion of the sliding seat (612) is in sliding connection with the sliding rail (614), the upper portion of the sliding seat (612) is connected with the digital dial indicator (65) through an adjusting frame (66), and the digital dial indicator (65) is connected with the signal conditioning circuit (1) through a conducting wire.

4. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 2, wherein: the connecting lines of the fixed center (67), the movable center (64) and the rack (61) are on the same straight line.

5. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 3, wherein: the sliding rail (614) is parallel to the rack (61).

6. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 1, wherein: the driving circuit (5) is electrically connected with the adjusting motor A (611) and the adjusting motor B (617) through conducting wires respectively.

7. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 3, wherein: the adjusting motor A (611) and the adjusting motor B (617) are both servo motors.

8. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 1, wherein: the data acquisition card (2) is connected with the computer (3) through a USB interface.

9. The LabVIEW-based mechanical product geometric accuracy quality inspection system of claim 3, wherein: the middle part of the adjusting frame (66) is provided with a rotating shaft.