CN218238719U

CN218238719U - High-precision laser composite detection device for shape and position size defects of complex workpiece

Info

Publication number: CN218238719U
Application number: CN202221074879.0U
Authority: CN
Inventors: 侯兴强; 闫炜楠; 李天豪; 赵迎辉; 俞航; 赵恒升; 马新强; 郭玉晶; 王靖雯
Original assignee: Qilu University of Technology
Current assignee: Qilu University of Technology
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2023-01-06
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a complex workpiece shape and position size defect high-precision laser composite detection device, which comprises a workbench, wherein a slide rail and a second lead screw are arranged on the workbench, a first slide plate and a second slide plate are arranged on the slide rail, and the second lead screw can drive the first slide plate and the second slide plate to realize opposite or back-to-back movement; fixed mounting has first stand on the first slide, the wired laser scanning determine module of first stand through first lifting unit installation, fixed mounting has the second stand on the second slide, the laser projection determine module is installed through second lifting unit to the second stand, still install on the workstation with line laser scanning determine module and laser projection determine module assorted rotating assembly. The utility model discloses a non-contact detects, can effectively avoid the damage to the work piece in the testing process, but each part of workstation free movement can adapt to different shapes and the complicated instrument of size better.

Description

High-precision laser composite detection device for shape and position size defects of complex workpiece

Technical Field

The utility model relates to a complicated work piece parameter detection area, in particular to complicated work piece configuration size defect high accuracy laser composite detection device.

Background

With the development of manufacturing technology and the continuous innovation of high-grade numerical control machine tools, the machining precision of the machine tool and the manufacturing technology level of products are continuously improved, and the detection of complex workpieces on an industrial field increasingly presents the characteristics of automation of the detection process, complex detection environment and diversified detection objects.

Conventional complex workpiece inspection typically uses conventional gauges for measurement, such as height gauges, disc gauges, tape measures, and the like. The conventional measuring tool is often used in the detection process to bring larger comprehensive errors, mainly the measurement efficiency is lower, and the measurement precision cannot be ensured.

For some workpieces with higher measurement accuracy requirements, a three-coordinate measuring instrument, a total station, a laser tracker and the like are generally used for measurement. The three-coordinate measuring instrument is expensive, large in size, not suitable for field detection, slow in measuring speed and poor in flexibility; the total station has higher measurement accuracy, but for some complex workpieces, the required measurement point cannot be detected due to reasons such as shielding and the like; the laser tracker needs to measure by means of a marker, and is complex to operate and low in working efficiency. The traditional complex workpiece detection device cannot meet the requirement of online detection of complex workpieces on an industrial field.

Disclosure of Invention

The utility model discloses a remedy prior art not enough, provide a complex work piece configuration size defect high accuracy laser composite detection device.

The utility model discloses a realize through following technical scheme:

a high-precision laser composite detection device for the shape and position size defects of a complex workpiece comprises a workbench, wherein a slide rail and a second lead screw are arranged on the workbench, a first slide plate and a second slide plate are arranged on the slide rail, and the second lead screw can drive the first slide plate and the second slide plate to realize opposite or back-to-back movement; fixed mounting has first stand on the first slide, the wired laser scanning determine module of first stand through first lifting unit installation, fixed mounting has the second stand on the second slide, the laser projection determine module is installed through second lifting unit to the second stand, still install on the workstation with line laser scanning determine module and laser projection determine module assorted rotating assembly.

The top fixed mounting of workstation has first slide rail and the third slide rail that is parallel to each other, the both ends of first slide and second slide respectively with first slide rail and third slide rail sliding fit, first slide and second slide still are connected with the second lead screw through first nut slider, second nut slider respectively.

First lifting unit includes first lead screw and the second slide rail of fixed mounting on first stand, the wired laser scanning determine module is installed through first slider to the second slide rail, first slider also is connected with first lead screw through the third nut slider, the one end fixed mounting of first lead screw has first hand wheel.

The second lifting assembly comprises a fourth sliding rail and a third lead screw which are fixedly mounted on the second stand column, the third lead screw is provided with a laser projection detection assembly through a second sliding block, the second sliding block is connected with the third lead screw through a fourth nut sliding block, and a second hand wheel is mounted at one end of the third lead screw.

One end of the second lead screw is connected with the output end of the first servo motor through a coupler.

The bottom of the workbench is provided with universal wheels.

The laser projection detection assembly comprises a laser transmitter and a receiver.

The rotating assembly is located between the first slide rail and the third slide rail.

The rotating assembly is driven by a second servo motor.

The utility model discloses has following technological effect:

compared with the traditional detection mode, the non-contact detection mode is adopted, the damage to the workpiece in the detection process can be effectively avoided, each part of the workbench can move freely, and the detection device can be better suitable for tools with different shapes and sizes. The device can quickly obtain the appearance parameters of the workpiece, shorten the detection time, improve the detection efficiency and simultaneously improve the safety and the stability of workpiece detection. This device carries out the combined detection through utilizing two sets of different laser detection subassemblies, reachs two sets of data and is mutually for verifying, has greatly improved the detection precision and has improved the detection precision greatly, can reach some detection requirements that are applicable to special occasion high accuracy work pieces.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic top view of the present invention.

In the figure, 1-workbench, 2-universal wheel, 3-first box door, 4-control button, 5-first slide rail, 6-first slide plate, 7-first servo motor, 8-first upright post, 9-first lead screw, 10-second slide rail, 11-line laser scanning detection component, 12-second upright post, 13-second lead screw, 14-second slide plate, 15-second box door, 16-heat dissipation hole, 17-fourth slide rail, 18-second hand wheel, 19-third lead screw, 20-laser projection detection component, 21-rotation component, 22-first slide block and 23-second slide block.

Detailed Description

The following are only embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention are intended to be covered by the scope of the present invention.

The words "front", "back", "inner" and "outer" used in this invention to describe the directional relationship are for convenience of description of the embodiments only and should not be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The fixed connection mode comprises but is not limited to a connection mode known in the prior art, such as welding, screwing, clamping, interference fit, integral forming and the like; the number of the plurality is more than one.

Fig. 3 to the accompanying drawings show an embodiment of the present invention. The embodiment provides a high-precision laser composite detection device for the shape and position size defects of complex workpieces, which comprises a workbench 1 with universal wheels 2 mounted at the bottom, wherein a first box door 3 and a second box door 15 are mounted on the workbench 1, and heat dissipation holes 16 are formed in the workbench. The worktable 1 is also provided with a control button 4.

A first sliding plate 6 and a second sliding plate 14 are arranged on the top of the workbench 1 through a first sliding rail 5 and a third sliding rail. Specifically, a first slide rail 5 and a third slide rail are parallel to each other and fixedly mounted at the top of the workbench 1, two ends of the first slide plate 6 are in sliding fit with the first slide rail 5 and the third slide rail respectively, and two ends of the second slide plate 14 are in sliding fit with the first slide rail 5 and the third slide rail respectively.

The first sliding plate 6 and the second sliding plate 14 are further connected with a second lead screw 13 arranged at the top of the workbench 1 through a first nut slider and a second nut slider respectively, and one end of the second lead screw 13 is connected with the output end of a first servo motor 7 fixedly arranged at the top of the workbench 1 through a coupler. The second lead screw 13 is driven to rotate by the first servo motor 7, so that the first sliding plate 6 and the second sliding plate 14 are driven to move in the opposite direction or move in the opposite direction, that is, the threads on the nut sliding block connecting the first sliding plate 6 and the second sliding plate 14 are opposite.

Fixed mounting has first stand 8 on the first slide 6, and first stand 8 passes through the wired laser scanning detection module 11 of first lifting unit installation. Specifically, a first lead screw 9 and a second slide rail 10 are mounted on the first upright post 8, a linear laser scanning detection assembly 11 is mounted on the second slide rail 10 through a first slider 22, the first slider 22 is also connected with the first lead screw 9 through a third nut slider, a first hand wheel is fixedly mounted at one end of the first lead screw 9, and the adjustment of the upper position and the lower position of the linear laser scanning detection assembly 11 is realized by rotating the first hand wheel.

And a second upright post 12 is fixedly mounted on the second sliding plate 14, and a laser projection detection assembly 20 is mounted on the second upright post 12 through a second lifting assembly. Specifically, a fourth slide rail 17 and a third lead screw 19 are mounted on the second column 12, and the laser projection detection assembly 20 is mounted on the third lead screw 19 through a second slider 23. The second slider 23 is connected with the third screw rod 19 through a fourth nut slider, a second hand wheel 18 is mounted at one end of the third screw rod 19, and the up-and-down position adjustment of the laser projection detection assembly 20 is realized by rotating the second hand wheel 18.

A rotating assembly 21 is installed between the first slide rail 5 and the third slide rail, the rotating assembly 21 is driven by a second servo motor fixedly installed on the top of the worktable 1, and the rotating assembly 21 is matched with the line laser scanning detection assembly 11 and the laser projection detection assembly 20. The rotating assembly 21 is used for mounting the tool clamp.

When the laser scanning detection device is used, a workpiece to be detected is firstly arranged on a workpiece fixture, two stand columns move oppositely to a position to be detected, the linear laser scanning detection assembly 11 and the laser projection detection assembly 20 are matched to slide up and down to a proper position, then the rotating assembly 21 drives the workpiece to rotate, the two laser detection assemblies respectively collect workpiece contour data and upload the workpiece contour data to the control center, and the control center analyzes the two sets of data to obtain the condition of the shape and position size defects of the workpiece, so as to obtain whether the workpiece is a defective product.

Specifically, a workpiece to be detected is fixed on a workpiece fixture, and then the equipment is initialized, that is, the first servo motor drives the two columns to move oppositely from the two ends of the detection platform to a proper position, and then the two laser detection units, that is, the laser projection detection assembly 20 and the line laser scanning detection assembly 11, move up and down to a proper position.

After initialization is completed, the rotating component 21 drives the workpiece to rotate, and meanwhile, the laser projection detection component 20 and the line laser scanning detection component 11 acquire data simultaneously. Wherein laser projection determine module 20 sends the laser light column by one end laser emitter, shelters from through the work piece that awaits measuring and produces the illumination shadow face, and the receiver of the other end receives the laser light column imaging conditions, and then the controller obtains the form and position size defect condition of the work piece that awaits measuring through analysis image. The line laser scanning detection assembly 11 irradiates the surface of the workpiece to be detected vertically through a laser beam emitted by a laser through a transmitter lens, and then the reflected laser beam irradiates the photosensitive element through a receiver lens. After the laser is reflected by the workpiece, an image is finally formed on the photoelectric sensing device through the objective lens, the appearance shape of the workpiece to be measured can be measured by detecting the change of the reflection position of the laser, and then the controller obtains the condition of the shape, position and size defects of the workpiece to be measured through analysis.

And after the two groups of data are transmitted to the control center, the control center respectively processes the two groups of data and compares the two groups of data with the standard size of the workpiece, and if the two groups of data are consistent with the standard data, the workpiece is judged to be qualified. If the difference between one group of data and the standard data is too large, the workpiece is judged to have a problem possibly, and further more accurate detection is carried out. And if the two groups of data are different from the standard, judging that the workpiece is unqualified.

Claims

1. The utility model provides a complex work piece shape and position size defect high accuracy laser composite detection device, includes workstation (1), its characterized in that: the workbench (1) is provided with a slide rail and a second lead screw (13), the slide rail is provided with a first sliding plate (6) and a second sliding plate (14), and the second lead screw (13) can drive the first sliding plate (6) and the second sliding plate (14) to move in the opposite direction or in the opposite direction; fixed mounting has first stand (8) on first slide (6), first stand (8) are through the wired laser scanning determine module (11) of first lifting unit installation, fixed mounting has second stand (12) on second slide (14), laser projection determine module (20) are installed through second lifting unit in second stand (12), still install on workstation (1) with line laser scanning determine module (11) and laser projection determine module (20) assorted rotating assembly (21).

2. The complex workpiece form and position size defect high-precision laser composite detection device of claim 1, which is characterized in that: the top fixed mounting of workstation (1) has first slide rail (5) and the third slide rail that is parallel to each other, the both ends of first slide (6) and second slide (14) respectively with first slide rail (5) and third slide rail sliding fit, first slide (6) and second slide (14) still are connected with second lead screw (13) through first nut slider, second nut slider respectively.

3. The complex workpiece form and position size defect high-precision laser composite detection device of claim 1, which is characterized in that: first lifting unit includes first lead screw (9) and second slide rail (10) of fixed mounting on first stand (8), second slide rail (10) are through first slider (22) installation wired laser scanning determine module (11), first slider (22) also are connected with first lead screw (9) through third nut slider, the one end fixed mounting of first lead screw (9) has first hand wheel.

4. The complex workpiece form and position size defect high-precision laser composite detection device of claim 1, which is characterized in that: the second lifting assembly comprises a fourth sliding rail (17) and a third lead screw (19) which are fixedly mounted on a second upright post (12), the third lead screw (19) is provided with a laser projection detection assembly (20) through a second sliding block (23), the second sliding block (23) is connected with the third lead screw (19) through a fourth nut sliding block, and one end of the third lead screw (19) is provided with a second hand wheel (18).

5. The complex workpiece form and position size defect high-precision laser composite detection device of claim 1, which is characterized in that: one end of the second lead screw (13) is connected with the output end of the first servo motor (7) through a coupler.

6. The complex workpiece form and position size defect high-precision laser composite detection device of claim 1, which is characterized in that: the bottom of the workbench (1) is provided with universal wheels (2).

7. The complex workpiece form and position size defect high-precision laser composite detection device of claim 2, which is characterized in that: the laser projection detection assembly (20) includes a laser transmitter and a receiver.

8. The complex workpiece form and position size defect high-precision laser composite detection device of claim 2, which is characterized in that: the rotating assembly (21) is positioned between the first sliding rail (5) and the third sliding rail.

9. The complex workpiece form and position size defect high-precision laser composite detection device according to claim 7, characterized in that: the rotating assembly (21) is driven by a second servo motor.