CN105043292B - Image shooting device for quality detection and analysis of machine tool guide rail surface - Google Patents

Abstract

An image capture device used for quality detection and analysis of machine tool guide rail surface. It mainly includes a moving box, a sliding component, a rotating component and a shooting component. The mobile box is mainly composed of an inner rail cover 1, an outer box 2, a hand wheel 3, and a built-in friction wheel 4. The sliding assembly is mainly composed of a handle 5, a sliding body 6, a screw 7, and a mobile table 8 The rotating assembly is mainly composed of a rotating base 9, a worm 21, a rotating platform 10, and a fixed block 11. The shooting assembly is connected with the fixed block 11 through a V-shaped rod 12, and mainly includes a sliding rod 19, an eyepiece moving device 14 , U-shaped bracket 15, connector 16, eyepiece 17, moving square block 18, and lighting device 20. It has a simple structure and low production cost. By replacing the inner guide rail sleeve, images of the guide rail surface of large machine tools with different cross-sections can be quickly and accurately obtained, providing image support for the identification of the wear state of the guide rail surface based on machine vision inspection technology, and finally being able to take effective measures. Mitigate wear or repair rails to provide decision basis. It is of great significance to the maintenance of machine tool precision and product quality assurance, and can be widely used in the field of quality inspection of machine tool guide rail surfaces.

Description

An image capture device for quality inspection and analysis of machine tool guide rail surface

technical field

The invention relates to the field of quality detection of machine tool guide rails, in particular to an image capturing device for detecting and analyzing the quality of machine tool guide rails.

Background technique

The accuracy of the guide rail of the machine bed directly affects the size, shape and position error of the machined parts. Therefore, whether it can maintain high-precision machining status will affect the product qualification rate and the service life of the machine tool. Therefore, the accuracy of the guide rail of the machine tool Testing is critical. Since the guide rails of the bed are exposed to the air all the year round without protection, the dustproof and chipproof conditions are poor, and wear will inevitably occur after long-term use. When the wear is serious, the machining accuracy of the parts will not meet the requirements, and even cause The guide rail fails, so wear is the root cause of the decline in the accuracy of the guide rail. That is to say, the wear state of the guide rail surface will largely reflect the precision of the machine tool guide rail.

At present, the level meter method or the autocollimator method is generally used to test the accuracy of the guide rail of the machine tool. The whole process is time-consuming and labor-intensive, and the data collection and arrangement are prone to errors, so the measurement accuracy is very low. In recent years, some special guide rail detection devices have gradually appeared on the market, but the effect is not ideal.

For example, Qian Panping of Zhejiang Quanshun Machine Tool Co., Ltd., Yujiang Village, Zao Town, Zhuji City, Shaoxing City, Zhejiang Province invented the "detection device suitable for the guide rail of the bed of a large cylindrical grinding machine" (such as patent number: 201320265700.4, application date: 2013.05.14, Notification number: CN203259102U, announcement date: 2013.10.30), it includes a reference plate with a reference plane, on the side of the reference plate away from the reference plane, there are plane measuring blocks matching the plane guide rail and the V-shaped guide rail respectively With the V-row measuring block, the reference plate is provided with a through slot between the plane measuring block and the V-row measuring block, and several suspenders are connected to the reference plate through a detachable structure. When this device is used, there is still a large detection error, and the application range is limited to the guide rail of the large cylindrical grinding machine bed. Therefore, based on the important influence of the accuracy of the guide rail of the machine tool on the processing quality of the part, it is necessary to use an efficient and simple method The accuracy of the guide rail of the machine tool is detected.

Machine vision inspection technology has the advantages of non-contact, fast detection speed and high accuracy, and has gradually become an important technical means in the field of surface inspection. For example, it has been successfully applied to the steel plate surface quality defect detection system. Therefore, the The technology is used to classify and identify the different wear states of the guide rail surface, so that the idea of realizing the accuracy detection of the guide rail of the machine tool is feasible. The invention can quickly and accurately acquire the image of the guide rail surface of the machine tool, and provides image support for the identification of the wear state of the guide rail surface based on the machine vision detection technology.

Contents of the invention

The purpose of the present invention is to provide a device for quickly and accurately acquiring images of machine tool guide rail surfaces.

In order to solve the above technical problems, the present invention adopts the following technical scheme: it includes a moving box, a sliding assembly, a rotating assembly and a shooting assembly; Wheel 4, wherein the inner guide rail cover 1 fits the guide rail to be detected; the sliding assembly includes a handle 5, a sliding body 6, a lead screw 7, and a mobile platform 8, and the sliding body 6 is fixed on the top of the outer box 2 , the upper surface of the sliding fuselage is provided with a sliding track, the mobile platform 8 is installed above the sliding track, and the lower end is provided with a threaded hole, and one end of the screw 7 is provided with a handle 5, which passes through the threaded hole at the lower end of the mobile platform 8 and is installed on the sliding On the fuselage 6; the rotating assembly includes a rotating base 9, a worm 21, a rotating platform 10, and a fixed block 11. The rotating base 9 is fixed on the top of the mobile platform 8, and the overall shape is semicircular and the diameter at both ends is large and the diameter in the middle is small , there are circumferential guide grooves at both ends, and turbine gear teeth are designed in the middle. The two ends of the rotating platform 10 are arc-shaped, and are attached to the two ends of the rotating base 9, and the axial positioning is realized by inserting the sliders into the guide grooves. , the worm 21 is horizontally installed in the middle of the rotating platform 10, and meshes with the gear teeth on the rotating base 9; the shooting assembly is connected with the rotating platform 10 through the first square block 13, the V-shaped rod 12, and the fixed block 11, It includes a sliding rod 19, an eyepiece moving device 14, a U-shaped bracket 15, a connector 16, an eyepiece 17, a moving square block 18, and a lighting device 20, wherein the eyepiece moving device 14 can move up and down along the sliding rod 19, and the connector 16 passes through the U-shaped bracket 15 is connected with eyepiece moving device 14, eyepiece 17 is screwed under connector 16, lighting device 20 is arranged under eyepiece, has a circular hole in the middle, and is connected with moving square block 18 by connecting rod 25.

In the mobile box of the present invention, the inner guide rail cover 1 moves based on the guide rail surface to be tested itself.

In the mobile box of the present invention, the inner guide rail cover 1 fits the guide rail to be tested, and can be designed as a series of corresponding components according to the guide rail sections of different shapes for replacement, and is fixedly connected to the outer box body 2 by screws. The built-in friction wheel 4 is pressed against the surface of the guide rail, and the hand wheel 3 is rotated to realize the movement of the whole device along the surface of the guide rail to be tested.

The inventive device of the present invention can realize the shooting of long guide rail surfaces of large machine tools with different sections.

In the sliding assembly of the present invention, the sliding body 6 is screwed on the top of the outer box 2, and the rotating handle 5 makes the mobile platform 8 move back and forth along the leading screw 7.

In the rotating assembly of the present invention, the rotating base 9 is fixed on the mobile platform 8, and the circumferential rotation of the rotating platform 10 can be realized by turning the worm 21, and the fixed block 11 is fixed on the rotating platform 10 with screws.

The photographing assembly of the present invention is connected with the rotating platform 10 through the first square block 13, V-shaped bar 12, fixed block 11, wherein after the eyepiece moving device 14 moves to a suitable position along the sliding rod 19, it is fixed by the tightening device 22 Fixed, the lighting device 20 can slide along the hole in the moving square block 18 and tighten it to fix it, and adjust the relative position of the eyepiece 17 and the light 27 through the fine-tuning knob 28 so that the quality of the photographed picture is optimal.

Working principle of the present invention: connect light 27 and eyepiece 17 with external power supply and computer, adjust eyepiece moving device 14, move square block 18 to an appropriate position and tighten, light device 20 moves along the hole in square block 18 Move so that the centerline of the eyepiece 17 and the centerline of the light 27 are roughly on a straight line, adjust the relative position of the eyepiece 17 and the light 27 through the fine-tuning knob 28 to make the picture quality optimal, and shake the handle 5 to move the mobile platform 8 to an appropriate position Rotate the worm 21 to realize the rotation of the rotating platform 10, so that the eyepiece 17 reaches the position perpendicular to the slope of the guide rail surface, adjust the fine-tuning knob 28 again to make the shooting effect reach the best, and then shoot, and rotate the hand wheel 3 to realize the whole device along the direction of the guide rail. Move, and shoot again after moving an appropriate distance, and finally obtain the image of the machine tool guide rail surface quickly and accurately.

Beneficial effects of the present invention: it can quickly and accurately acquire the image of the guide rail surface of the machine tool, and by replacing the inner guide rail sleeve and the rotation of the rotating platform, the device can realize the shooting of long guide rail surfaces of large machine tools with different sections; acquiring the guide rail surface image is It is the premise to realize the identification of wear state of guide rail surface based on machine vision detection technology. Therefore, it is the basis for using machine vision technology to detect the accuracy of machine tool guide rails, and it fundamentally solves the shortcomings of time-consuming, laborious and low detection accuracy of commonly used detection methods. The utility model has the advantages of simple structure and low manufacturing cost, and can be widely used in the field of quality detection of machine tool guide rail surfaces.

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the general assembly drawing of the present invention.

Fig. 2 is a front view of the present invention.

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

Fig. 4 is a left view of the present invention.

Fig. 5 is a schematic diagram of the rotating platform of the present invention.

Fig. 6 is a schematic diagram of assembly of the photographing assembly of the present invention.

In the figure: 1-inner rail cover, 2-outer box, 3-hand wheel, 4-built-in friction wheel, 5-handle, 6-sliding body, 7-lead screw, 8-moving table, 9-rotating base , 10-rotary platform, 11-fixed block, 12-V-shaped rod, 13-first square block, 14-eyepiece moving device, 15-U-shaped bracket, 16-connector, 17-eyepiece, 18-moving square Block, 19-sliding rod, 20-lighting device, 21-worm screw, 22-24 tightening device, 25-protruding rod, 26-connecting plate, 27-light, 28-fine-tuning knob, 29-screwing device.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Embodiment 1, the present invention includes a moving box, a sliding assembly, a rotating assembly, and a shooting assembly; Fitted with the guide rail to be detected; the sliding assembly includes a handle 5, a sliding body 6, a lead screw 7, and a mobile platform 8, the sliding body 6 is fixed above the outer box 2, and the upper surface of the sliding body is provided with Sliding track, the mobile platform 8 is installed above the sliding track, and the lower end is provided with a threaded hole, and one end of the screw 7 is provided with a handle 5, which passes through the threaded hole at the lower end of the mobile platform 8 and is installed on the sliding body 6; The assembly includes a rotating base 9, a worm 21, a rotating platform 10, and a fixed block 11. The rotating base 9 is fixed above the mobile platform 8. The overall shape is semicircular and the diameter at both ends is large and the diameter in the middle is small. There are circumferential guides at both ends. The two ends of the rotating platform 10 are arc-shaped, and fit with the two ends of the rotating base 9, and the axial positioning is realized by inserting the slider into the guide groove. The worm 21 is installed laterally on the In the middle of the rotating platform 10, it is engaged with the gear teeth on the rotating base 9; the photographing assembly is connected with the rotating platform 10 through the first square block 13, the V-shaped bar 12, and the fixed block 11, and it includes a sliding rod 19, an eyepiece moving Device 14, U-shaped bracket 15, connector 16, eyepiece 17, moving square block 18, lighting device 20, wherein the eyepiece moving device 14 can move up and down along the sliding rod 19, and the connector 16 connects with the eyepiece moving device through the U-shaped bracket 15 14 is connected, the eyepiece 17 is screwed tightly under the connector 16, and the lighting device 20 is arranged under the eyepiece, with a circular hole in the middle, and is connected with the moving square block 18 through the connecting rod 25.

Embodiment 2, the working process of the present invention: connect the light 27 and the eyepiece 17 to an external power supply and a computer, adjust the eyepiece moving device 14, move the square block 18 to an appropriate position and tighten it, and move the light device 20 along the moving square block 18 The inner hole is moved so that the centerline of the eyepiece 17 and the centerline of the light 27 are roughly in a straight line, the relative position of the eyepiece 17 and the light 27 is adjusted by the fine-tuning knob 28 to make the picture quality optimal, and the mobile platform 8 is moved by shaking the handle 5 To the appropriate position, the rotating worm 21 realizes the rotation of the rotating platform 10, so that the eyepiece 17 reaches the position perpendicular to the slope of the guide rail surface, adjusts the fine-tuning knob 28 again to make the shooting effect reach the best, and then shoots, and rotates the handwheel 3 to realize the whole device along the Move in the direction of the guide rail, and shoot again after moving an appropriate distance, and finally obtain the image of the guide rail surface of the machine tool quickly and accurately. See Figures 1 through 6.

Embodiment 3, the inner rail cover 1 in the mobile box described in the present invention moves based on the rail surface to be tested itself. Referring to Fig. 1 to Fig. 6, all the other are the same as embodiment 1.

Embodiment 4, the inner guide rail cover 1 in the mobile box described in the present invention fits with the guide rail to be tested, it can be designed into a series of corresponding components according to the guide rail sections of different shapes for replacement, and is connected by screws The outer box body 2 is fixedly connected, the built-in friction wheel 4 is pressed on the guide rail surface, and the hand wheel 3 is rotated to realize the movement of the whole device along the guide rail surface to be tested. Referring to Fig. 1 to Fig. 6, all the other are the same as embodiment 1.

Embodiment 5, the inventive device described in the present invention can realize the shooting of long guide rail surfaces of large machine tools with different sections. Referring to Fig. 1 to Fig. 6, all the other are the same as embodiment 1.

Embodiment 6, in the sliding assembly described in the present invention, the sliding body 6 is screwed on the top of the outer box 2 , and the handle 5 is rotated to make the mobile platform 8 move back and forth along the lead screw 7 . Referring to Fig. 1 to Fig. 6, all the other are the same as embodiment 1.

Embodiment 7, in the rotating assembly described in the present invention, the rotating base 9 is fixed on the mobile platform 8, and the rotating platform 10 can be rotated in the circumferential direction by rotating the worm 21, and the fixed block 11 is fixed on the rotating platform 10 with screws. Referring to Fig. 1 to Fig. 6, all the other are the same as embodiment 1.

Embodiment 8, the shooting assembly described in the present invention is connected with the rotating platform 10 through the first square block 13, the V-shaped rod 12, and the fixed block 11, wherein after the eyepiece moving device 14 moves to a suitable position along the sliding rod 19, Fix it by screwing the device 22, the lighting device 20 can slide along the hole in the moving square block 18 and screw it to fix it, adjust the relative position of the eyepiece 17 and the light 27 through the fine-tuning knob 28 to make the picture quality optimal . Referring to Fig. 1 to Fig. 6, all the other are the same as embodiment 1.

Claims (7)

1. a kind of image capturing device analyzed for the quality testing of machine tool guideway face, it is characterised in that：It include mobile box, Slide assemblies, rotary components and picture shooting assembly；The mobile box includes interior guide rail sleeve（1）, outer case（2）, handwheel（3）, it is interior Put friction pulley（4）, wherein interior guide rail sleeve（1）Fitted with guide rail to be detected；Described slide assemblies include handle（5）, slide Fuselage（6）, leading screw（7）, mobile station（8）, the slip fuselage（6）It is fixed on outer case（2）Surface is set with top, skate machine There are sliding rail, the mobile station（8）Above sliding rail, lower end is provided with screwed hole, the leading screw（7）One end is provided with Handle（5）, through mobile station（8）Lower end screwed hole, which is arranged on, slides fuselage（6）On；The rotary components include rotating base （9）, worm screw（21）, rotation platform（10）, fixed block（11）, the rotating base（9）It is fixed on mobile station（8）Top, it is overall Semicircular in shape and diameter big mid diameter in two ends is small, two ends are provided with circumferential guide groove, and medium design has the turbine gear teeth, the rotation Turn platform（10）Two ends are in circular arc, and and rotating base（9）Two ends are fitted, and are axially determined by inserting the sliding block of guide groove and realizing Position, the worm screw（21）It is transversely mounted on rotation platform（10）Centre, and and rotating base（9）On gear teeth meshing；It is described to clap Take the photograph component and pass through the first square block（13）, V-type bar（12）, fixed block（11）With rotation platform（10）Connection, picture shooting assembly includes Sliding bar（19）, eyepiece mobile device（14）, U-shaped support（15）, connector（16）, eyepiece（17）, mobile square block（18）, lamp Electro-optical device（20）, wherein eyepiece mobile device（14）Can be along sliding bar（19）Move up and down, connector（16）Pass through U-shaped support （15）With eyepiece mobile device（14）It is connected, eyepiece（17）It is tightened on connector（16）Lower section, lighting fixture（20）It is arranged in mesh Below mirror, centre is provided with circular port, and passes through connecting rod（25）With mobile square block（18）Connection.

2. it is used for the image capturing device that the quality testing of machine tool guideway face is analyzed according to claim 1, it is characterised in that：Institute State guide rail sleeve in mobile box（1）By guide pass to be measured in itself on the basis of move.

3. it is used for the image capturing device that the quality testing of machine tool guideway face is analyzed according to claim 1, it is characterised in that：Institute State guide rail sleeve in mobile box（1）Fitted with guide rail to be measured, phase can be designed into according to guide rail section of different shapes A series of components answered pass through screw and outer case to be replaced（2）It is affixed, built-in friction pulley（4）It is pressed on guide pass On, turn handwheel（3）Realize that whole device is moved along guide pass to be measured.

4. it is used for the image capturing device that the quality testing of machine tool guideway face is analyzed according to claim 1, it is characterised in that：Institute State and fuselage is slided in slide assemblies（6）Outer case is tightened on screw（2）Top, rotary handle（5）Make mobile station（8）Along silk Thick stick（7）Move back and forth.

5. it is used for the image capturing device that the quality testing of machine tool guideway face is analyzed according to claim 1, it is characterised in that：Institute State rotating base in rotary components（9）It is fixed on mobile station（8）On, pass through rotary worm（21）Rotation platform can be realized（10） Circumferentially rotate, fixed block（11）It is screwed in rotation platform（10）On.

6. it is used for the image capturing device that the quality testing of machine tool guideway face is analyzed according to claim 1, it is characterised in that：Institute State picture shooting assembly and pass through the first square block（13）, V-type bar（12）, fixed block（11）With rotation platform（10）Connection, wherein eyepiece Mobile device（14）Along sliding bar（19）It is moved to after correct position, passes through winding device（22）It is fixed, lighting fixture （20）Square block can be moved along（18）Interior hole is entered line slip and is tightened, and passes through vernier knob（28）Adjust mesh Mirror（17）With light（27）Relative position cause shoot picture quality it is optimal.

7. it is used for the image capturing device that the quality testing of machine tool guideway face is analyzed according to claim 1, it is characterised in that：Will Light（27）With eyepiece（17）It is connected with extraneous power supply, computer, adjusts eyepiece mobile device（14）, mobile square block（18）Arrive Appropriate location is simultaneously screwed, by lighting fixture（20）Move along square block（18）Interior hole is moved so that eyepiece（17）In Heart line and light（27）Center line substantially point-blank, passes through vernier knob（28）Adjust eyepiece（17）With light（27）'s Relative position make it that shooting picture quality is optimal, swinging handle（5）Make mobile station（8）It is moved to appropriate location, rotary worm （21）Realize rotation platform（10）Rotation so that eyepiece（17）The position vertical with guide pass inclined-plane is reached, is adjusted again micro- Adjust knob（28）So that shooting effect is shot after reaching most preferably, turn handwheel（3）Realize single unit system along guide rail direction Movement, shot again after mobile suitable distance, finally quickly and accurately acquisition machine tool guideway face image.