CN206656692U - A kind of multistation non-destructive detecting device of gas spring bar - Google Patents

Abstract

The utility model provides a kind of multistation non-destructive detecting device of gas spring bar, including frame and upper computer control system, characterized in that, also include being used for guide groove, the feed mechanism for being transported in the guide groove detected gas spring bar, the pusher for promoting detected gas spring bar, the first station for detecting gas spring bar size, the second station for detecting gas spring bar surface defect and the sorting discharging mechanism for sorting out qualified and unqualified gas spring bar being oriented to being detected gas spring bar.Detection process is automation mechanized operation process, and detection efficiency is high, and the precision and stability of detection is good.

Description

A kind of multistation non-destructive detecting device of gas spring bar

Technical field

It the utility model is related to test technique automatic field, more particularly to a kind of multistation Non-Destructive Testing of gas spring bar Equipment.

Background technology

Gas spring (gas spring) is that one kind can play the functions such as support, buffering, braking, height regulation and angular adjustment Accessory.It is obtained in fields such as Medical Devices, automobile, furniture, Weaving device, processing industries and widely applied.It is high-quality The gas spring product of amount should have good sealing (not water clock), internal resistance small (compression stress is small) and have enough screen resiliences, fit Suitable rebound velocity, enough coupling mechanism forces etc..Therefore very high is required to its spring-mass.

In industrial production line, in order to meet the requirement of speed of production and product quality, it is necessary to coordinate each on production line Individual flow carries out the detection of the performance indications such as outward appearance, size.Existing detection method is manually to detect.For gas spring bar This parameter is more, for the unconspicuous object of open defect, artificial detection gas spring bar surface defect be touched by hand, visually, The methods of illumination reflection, light projection, is checked.And artificial detection gas spring bar dimensional parameters are then using traditional " smelting tool formula " Measurement, the gas spring bar size detection of same model need about 10 sleeve clamps to measure, when the different Dimension Types of measurement During air spring piston bar, it is also necessary to design different fixtures.Above-mentioned manual inspection method efficiency is low, and between smelting tool and product Gap be present, larger error can be produced in detection process.

In addition, in high-volume industrial processes, and precision low using the method efficiency of hand inspection product be not high, holds Easy flase drop missing inspection situation.

It can be seen that prior art could be improved and improve.

The content of the invention

In view of in place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multiplexing of gas spring bar Position non-destructive detecting device, it is intended to solve it is existing it is artificial carry out it is less efficient when gas spring bar size and Surface testing, exist compared with The problem of big error.

In order to achieve the above object, the utility model takes following technical scheme：

A kind of multistation non-destructive detecting device of gas spring bar, including frame and upper computer control system, it is characterised in that Also including the guide groove for being oriented to detected gas spring bar, for detected gas spring bar to be transported in the guide groove Feed mechanism, the pusher for promoting detected gas spring bar, the first station for detecting gas spring bar size, it is used for Detect the second station of gas spring bar surface defect and sub-elected for what qualified and unqualified gas spring bar was sorted out Expect mechanism.

The multistation non-destructive detecting device of the gas spring bar, in addition to two guide groove branch being vertically arranged in frame Post, level and two guide groove slide rails for being arranged on guide groove pillar upper end in parallel to each other；The guide groove is by being slideably sheathed on Several guide groove blocks composition on two guide groove slide rails；Guide groove slide rail length direction described in each guide groove block upper end edge Offer the " V " shape groove of one.

The multistation non-destructive detecting device of the gas spring bar, wherein, the feed mechanism is included positioned at guide groove side The upper flitch that is fixed in frame and be arranged between the upper flitch and guide groove be used to single gas spring bar be transported to leading Elevator structure in groove；The upper flitch is obliquely installed, and its outside is higher than inner side, and its inner side is less than the upper end of guide groove.

The multistation non-destructive detecting device of the gas spring bar, wherein, the pusher includes being horizontally set on frame On pusher slide rail, the pusher slide rail is arranged on the side relative with the upper flitch of guide groove, and its length direction is led with described Groove slide rail is parallel；The expeller that also includes being slidably disposed on pusher slide rail, it is arranged in pusher slide rail and is used to drive institute State the reciprocating pusher belt of expeller and the pusher motor for driving pusher belt movement；The pusher motor leads to Cross the first belt drive component driving pusher belt.

The multistation non-destructive detecting device of the gas spring bar, wherein, first station includes being horizontally placed on frame On Y-axis slide rail, be slidably disposed on Y-axis slide rail two camera adjusting devices, be arranged at directly over the guide groove point The first camera and second camera at gas spring bar riveting end and end of thread image Yong Yu not gathered and be slidably disposed in guide groove Two background light source modules of underface.

The multistation non-destructive detecting device of the gas spring bar, wherein, first camera and second camera are CCD industry phases Machine, its camera lens are telecentric lens.

The multistation non-destructive detecting device of the gas spring bar, wherein, each background light source module includes sliding The light source sliding block that is arranged at dynamicly on light source slide rail and the background light source for being arranged at light source upper end of slide block；The light source slide rail It is be arranged in parallel with the guide groove slide rail.

The multistation non-destructive detecting device of the gas spring bar, wherein, the background light source shines for White LED collimated backlight Mingguang City source.

The multistation non-destructive detecting device of the gas spring bar, wherein, the second station includes and detected gas spring The annular light source that bar is coaxially disposed, several third camera for gathering gas spring bar surface image information and for handle Third camera is fixed on the third camera link in frame；The third camera is uniformly set along the annular light source circumferencial direction Put.

The multistation non-destructive detecting device of the gas spring bar, wherein, the sorting discharging mechanism includes rotationally setting Put the sorting guide groove in frame, be arranged at the reclaiming plate of the sorting guide groove both sides and for driving sorting guide groove rotation Sort motor；The sorting motor drives sorting guide groove to rotate by the second belt drive component；Each reclaiming plate inclines Tiltedly set, its inner side is higher than outside.

Beneficial effect：

A kind of multistation non-destructive detecting device of gas spring bar provided by the utility model, utilizes Machine Vision Detection skill Art, realize to the gas spring bar bar size and the Non-contact nondestructive automatic detection of surface defect on production line, entirely detected Journey is automation mechanized operation process, and detection efficiency is high, and the precision and stability of detection can be ensured well, relative to biography The Optimum Design of system, saves space, reduces equipment cost, improves operating efficiency.

Brief description of the drawings

Fig. 1 is the positive stereochemical structure signal of the multistation non-destructive detecting device of gas spring bar provided by the utility model Scheme, the device structure seen from left front is shown in figure.

Fig. 2 is illustrating backwards to stereochemical structure for the multistation non-destructive detecting device of gas spring bar provided by the utility model Scheme, the device structure seen from left back is shown in figure.

Fig. 3 is illustrating backwards to stereochemical structure for the multistation non-destructive detecting device of gas spring bar provided by the utility model Scheme, the device structure seen from right front is shown in figure.

Fig. 4 is the partial enlarged drawing of S portion in Fig. 2.

Fig. 5 is the schematic diagram of elevator structure in the multistation non-destructive detecting device of gas spring bar provided by the utility model, The original state of elevator structure is shown in figure.

Fig. 6 is the schematic diagram of elevator structure in the multistation non-destructive detecting device of gas spring bar provided by the utility model, Elevator structure working condition is shown in figure.

Fig. 7 is the partial enlarged drawing of C portion in Fig. 1.

Fig. 8 is the knot of camera adjusting device in the multistation non-destructive detecting device of gas spring bar provided by the utility model Structure schematic diagram.

Fig. 9 is the partial enlarged drawing of F parts in Fig. 3.

Figure 10 is the knot that discharging mechanism is sorted in the multistation non-destructive detecting device of gas spring bar provided by the utility model Structure schematic diagram.

Figure 11 is the system block diagram of the multistation non-destructive detecting device of gas spring bar provided by the utility model.

Embodiment

The utility model provides a kind of multistation non-destructive detecting device of gas spring bar, for make the purpose of this utility model, Technical scheme and effect are clearer, clear and definite, and the utility model is further described the embodiment that develops simultaneously referring to the drawings. It should be appreciated that specific embodiment described herein is not used to limit the utility model only to explain the utility model.

Fig. 1,2 and 3 are referred to, the utility model provides a kind of multistation non-destructive detecting device of gas spring bar, including machine Frame 10 and upper computer control system A10.Wherein, its mechanical part structure also includes：For being led to being detected gas spring bar To guide groove 200, for detected gas spring bar is transported in the guide groove feed mechanism 100, for promoting detected gas The pusher 300 of spring lever, the first station 400 for detecting gas spring bar size, lack for detecting gas spring bar surface Sunken second station 500 and the sorting discharging mechanism 600 for qualified and unqualified gas spring bar to be sorted out.

Fig. 1-6, the multistation non-destructive detecting device of the gas spring bar are referred to, in addition to is vertically arranged in frame It is two guide groove pillars 210, horizontal and be arranged on two guide groove slide rails 220 of guide groove pillar upper end in parallel to each other；The guide groove 200 several guide groove blocks 230 by being slideably sheathed on two guide groove slide rails form；Each guide groove block upper end The " V " shape groove of one is offered along the length direction of guide groove slide rail 220.The " V " shape will be positioned over by being detected gas spring bar In groove.

Fig. 1-6 are referred to, the feed mechanism 100 includes the upper flitch being fixed in frame positioned at the side of guide groove 200 110 and be arranged between the upper flitch and guide groove 200 be used for single gas spring bar is transported to elevator structure in guide groove 120；The upper flitch 110 is obliquely installed, and its outside is higher than inner side（Inner side refers to that outside refers to remote close to the side of guide groove The side of guide groove）, its inner side is less than the upper end of guide groove 200.Specifically, the elevator structure 120 includes being used for single gas bullet The liter flitch 121 and two liter material cylinders 122 for being used to drive this liter of flitch up and down motion that spring base is transported in guide groove；Institute The upper surface of liter flitch is stated as the outside inclined-plane higher than inner side, its thickness is only capable of accommodating a gas spring, it is preferred that its thickness is 1.3~2.3 times of gas spring bar radius, it both can guarantee that only a gas spring bar can be promoted by liter flitch, in turn ensure that gas bullet Spring base uphill process has enough stability, does not fall out.

Feeding process is as follows：Production line belt is transported to gas spring bar to be detected in upper flitch 110, now rises flitch With being flushed on the inside of upper flitch on the outside of 121 upper surface（As shown in Figure 5）, then liter material cylinder 122 rise flitch 121 and promote Rise, while promote a gas spring bar to rise, after being flushed until the upper surface inner side of liter flitch with the upper end side of guide groove 200（Such as Shown in Fig. 6）, the gas spring bar rolled into guide groove under gravity, is then risen flitch 121 and is resetted, the gas bullet in upper flitch 110 Inside side roll enters liter flitch 121 upper surface to spring base under gravity, completes a feeding.

Fig. 1,2,7 are referred to, the pusher 300 includes the pusher slide rail 310 being horizontally set in frame 10, and this is pushed away Material slide rail is arranged on the side relative with the upper flitch 110 of guide groove 200, and its length direction and the guide groove slide rail 220 are flat OK；The expeller 320 that also includes being slidably disposed on pusher slide rail, be arranged in pusher slide rail 310 be used to driving it is described The reciprocating pusher belt of expeller 320（Do not have picture in figure）And for driving the pusher motor 330 of pusher belt movement； The pusher motor 330 drives pusher belt by the first belt drive component 340；The expeller 320 is included slideably The pusher block body 321 that is arranged on pusher slide rail 310, it is arranged at pusher block body upper end and is stretched to the direction of guide groove 200 Ram seat 322 and it is arranged on the push rod 323 that can be moved below ram seat and in the " V " shape groove；The push rod passes through two Root connecting rod 324 is connected with ram seat.During work, the push rod is pushed to detected gas spring bar from the first station along guide groove Second station sorts discharging mechanism until entering.

In the present embodiment, Fig. 1,4,8 are referred to, the Y-axis that first station 400 includes being horizontally placed in frame is slided Rail 410, two camera adjusting devices 420 being slidably disposed on Y-axis slide rail, it is arranged at directly over the guide groove 200 and divides The first camera 430 at gas spring bar riveting end and end of thread image Yong Yu not gathered and second camera 440 and be mounted slidably Two background light source modules 450 immediately below guide groove 200.The first camera and second camera are CCD industrial cameras, its Camera lens is telecentric lens.

The Y-axis slide rail is parallel with the length direction of guide groove 200；Each camera adjusting device 420 includes being arranged In the adjustment sliding block 421 on Y-axis slide rail 410, the Z axis travelling carriage 422 being slidably disposed on the adjustment sliding block, it is horizontally disposed with In the X-axis slide rail 423 on Z axis travelling carriage and the camera support 424 being slidably disposed in X-axis slide rail；The Z axis is slided Moving frame 422 drives it to be moved along Z-direction by Z axis fine-tuning screw 425；The camera support 424 passes through X-axis fine-tuning screw（In figure No picture）It is driven to move in X direction；The adjustment sliding block for being used to install second camera 440 is driven by Y-axis fine-tuning screw 426 Move it to move along Y-direction, the Y-axis fine-tuning screw adjusts the unthreaded hole on sliding block and the adjustment being fixed in frame 10 through another Rotating disk 427 connects.Provide herein, along the length direction of guide groove 200 be Y-direction, horizontal vertical in the direction of Y-direction be X to Z-direction and X Right-handed coordinate system is formed to, Y-direction.

Fig. 2,4 are referred to, each background light source module 450 includes being slidably disposed on light source slide rail 451 Light source sliding block 452 and be arranged at the background light source 453 of light source upper end of slide block；The light source slide rail and the guide groove slide rail 220 be arranged in parallel.Preferably, the background light source is White LED collimated backlight lighting source, is advantageous to improve image procossing Accuracy.

, it is necessary to first establish measuring coordinate system before progress size detection, and the ratio of uncalibrated image length in pixels and physical length Example relation, specific method are as follows：A standard cylindrical bar is placed in guide groove 200, length and the gas spring bar of the cylindrical bar are grown Identical, the position of adjustment first camera and second camera is spent, them is respectively aligned to the both ends of standard cylindrical bar, while adjust two The position of individual background light source 453 makes it distinguish face first camera and second camera, the guide groove between camera and background light source Block 230, which is removed, reserves thang-kng position；After gathering both ends of the image, using the projecting section of standard cylindrical bar（Rectangle）Establish two CCD coordinate system, ensure that overlapping of axles, the origin of coordinates are respectively in end in the transverse axis and image of the coordinate system；Pass through standard again The size of cylindrical bar and two cameras adopt image size（Pixel number）Can determine two coordinate systems and physical length it Between mapping relations.

First camera and second camera position are motionless during detection, gather the gas spring bar end of thread and riveting end image respectively, on Position machine control system to adopt image is filtered processing, image is split and utilizes edge detection algorithm measured zone from the back of the body Separated in scape, by direct measurement can obtain the reach of gas spring bar, stroke, the diameter of thread, the core diameter of thread, The parameters such as riveting end length, riveting end external diameter（These parameter distributions can be obtained with direct measurement at gas spring bar both ends）, gas spring bar Overall length can be calculated by the coordinate value of standard cylindrical bar length and end face in two coordinates.

Further, the second station 500 includes annular light source 510, the use being coaxially disposed with detected gas spring bar In several third camera 520 of collection gas spring bar surface image information and for third camera to be fixed on frame Third camera link 530.The image acquisition region of third camera described in the annular light source uniform irradiation.The third phase Machine is uniformly arranged along the annular light source circumferencial direction.Preferably, the third camera is 4, between two neighboring third camera Every 90 °.

Because the axial length of gas spring bar workpiece is longer, there is width in the data image region that third camera can gather The limitation of degree.Therefore, in the preferred embodiment, the step-by-step movement of pusher 300 propulsion gas spring bar workpiece to be detected, 4 The circumferential surface image of the axial length of predetermined gas spring bar workpiece corresponding to the collection of third camera gradually, until whole gas bullet The circumferential surface image of spring base workpiece, which gathers, to be finished.Specifically, the predetermined axial length is 10mm.Gather every time The surface image of gas spring bar workpiece 10mm length, finally gives complete circumferential surface image, and pass through upper computer control system Judged.

Upper computer control system to adopt image analyzing and processing and detect defect process it is as follows：First in host computer control System processed stores qualified workpiece surface image as standard form, and the image arrived to actual acquisition carries out ROI positioning, then right ROI image carries out image smoothing, image enhaucament, image binaryzation, carries out connected domain analysis to binary image afterwards, then pass through The area of connected region, the maximum of profile length and particle number are calculated to judge whether that various defects (are scraped on surface Trace, fall paint, corrosion, spot, crackle etc.), obtain the whether qualified result of product.

Specifically, it is described sorting discharging mechanism 600 include be rotatably arranged in frame 10 sorting guide groove 610, set It is placed in the reclaiming plate 620 of the sorting guide groove both sides and the sorting motor for driving sorting guide groove to rotate（Do not have picture in figure）；Institute State sorting motor drives sorting guide groove to rotate by the second belt drive component 630, when product is certified products, selects motor to rotate forward Product is entered the reclaiming plate of wherein side from sorting guide groove, when product be defective work, select motor reversal to make product from dividing Guide groove is selected to enter the reclaiming plate of opposite side；Each reclaiming plate is obliquely installed, and its inner side is higher than outside, and its outside is settable The conveyer belt of production line, it can under gravity automatically fall on conveyer belt and be transported to respective after product enters reclaiming plate Storage area.

Preferably, the reclaiming plate 620 includes being arranged at the first reclaiming plate 621 of sorting guide groove 610 side, is arranged at point The second reclaiming plate 622 for selecting guide groove opposite side, the 3rd reclaiming plate 623 being arranged at below the first reclaiming plate and it is arranged at The 4th reclaiming plate 624 below two reclaiming plates；The reclaiming plate 622 of first reclaiming plate 621 and second and sorting guide groove 610 it Between rotatably arranged with there is screen plate 640, each screen plate drives by a material splitting cylinder being arranged in frame 650. The open or close of upper computer control system situation control screen plate according to the defects of product, makes product according to defect type point four Individual region storage, such as：First reclaiming plate is used to place qualified products, and the second reclaiming plate is used for the unqualified production for being placed with crackle Product, the 3rd reclaiming plate are used to place off-dimension product, and the 4th reclaiming plate is used for the defective substandard product of placement surface.

As described in Figure 11, the upper computer control system A10 includes technical grade computer A11, and it passes through 1394 buses point Camera model not with the first station and second station is connected, and transmits view data.The upper computer control system A10 passes through 485 buses and PLC（Programmable logic controller (PLC)）Controller is communicated to connect, and the dynamic of each mechanism is controlled by PLC A12 Perform, export corresponding trigger signal, motion control signal, position charging signal or separation results signal etc. are and above-mentioned Mechanical structure device is engaged, and completes the automatic detection of gas spring bar workpiece.

In summary, above-mentioned automatic checkout equipment can carry out gas spring bar bar size and surface defect automatic detection, lead to Camera adjustments device adjustment camera model position is crossed, with suitable for carrying out automatic detection to various sizes of gas spring bar bar.Its The artificial detection that original reliability is low, efficiency is low is instead of, enables the detection process of original complexity automatic in a detection device Complete.Relative to traditional artificial detection method, improve accuracy of detection, detection efficiency, reduce cost of labor.

It is understood that for those of ordinary skills, can according to the technical solution of the utility model and The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model Scope of the claims.

Claims (10)

1. a kind of multistation non-destructive detecting device of gas spring bar, including frame and upper computer control system, it is characterised in that also Including the guide groove for being oriented to detected gas spring bar, for detected gas spring bar to be transported in the guide groove Expect mechanism, the pusher for promoting detected gas spring bar, the first station for detecting gas spring bar size, for examining Survey second station and the discharging of the sorting for qualified and unqualified gas spring bar to be sorted out of gas spring bar surface defect Mechanism.

2. the multistation non-destructive detecting device of gas spring bar according to claim 1, it is characterised in that also include being vertically arranged Two guide groove pillars, level in frame and two guide groove slide rails of guide groove pillar upper end are arranged in parallel to each other；It is described Guide groove is made up of several guide groove blocks being slideably sheathed on two guide groove slide rails；Each guide groove block upper end edge The guide groove slide rail length direction offers the " V " shape groove of one.

3. the multistation non-destructive detecting device of gas spring bar according to claim 2, it is characterised in that the feed mechanism bag Include the upper flitch being fixed in frame for being located at guide groove side and be arranged between the upper flitch and guide groove and be used for single Gas spring bar is transported to the elevator structure in guide groove；The upper flitch is obliquely installed, and its outside is higher than inner side, and its inner side, which is less than, leads The upper end of groove.

4. the multistation non-destructive detecting device of gas spring bar according to claim 3, it is characterised in that the pusher bag The pusher slide rail being horizontally set in frame is included, the pusher slide rail is arranged on the side relative with the upper flitch of guide groove, its Length direction is parallel with the guide groove slide rail；Also include be slidably disposed on pusher slide rail expeller, be arranged on pusher It is used to drive the reciprocating pusher belt of the expeller and the pusher electricity for driving pusher belt movement in slide rail Machine；The pusher motor drives pusher belt by the first belt drive component.

5. the multistation non-destructive detecting device of gas spring bar according to claim 2, it is characterised in that the first station bag Two camera adjusting devices include the Y-axis slide rail being horizontally placed in frame, being slidably disposed on Y-axis slide rail, it is arranged at It is respectively used to gather first camera and second camera, the Yi Jike of gas spring bar riveting end and end of thread image directly over the guide groove Two background light source modules being slidingly arranged at immediately below guide groove.

6. the multistation non-destructive detecting device of gas spring bar according to claim 5, it is characterised in that first camera and second Camera is CCD industrial cameras, and its camera lens is telecentric lens.

7. the multistation non-destructive detecting device of gas spring bar according to claim 5, it is characterised in that each bias light Source module includes the light source sliding block being slidably disposed on light source slide rail and the bias light for being arranged at light source upper end of slide block Source；The light source slide rail be arranged in parallel with the guide groove slide rail.

8. the multistation non-destructive detecting device of gas spring bar according to claim 7, it is characterised in that the background light source is White LED collimated backlight lighting source.

9. the multistation non-destructive detecting device of gas spring bar according to claim 1, it is characterised in that the second station bag Include be coaxially disposed with detected gas spring bar annular light source, for gather gas spring bar surface image information several the 3rd Camera and the third camera link for third camera being fixed in frame；The third camera is along the ring light Source circumferencial direction is uniformly arranged.

10. according to the multistation non-destructive detecting device of any one of the claim 1-9 gas spring bars, it is characterised in that described Sorting discharging mechanism include be rotatably arranged in frame sorting guide groove, be arranged at the sorting guide groove both sides reclaiming plate, And the sorting motor for driving sorting guide groove to rotate；The sorting motor drives sorting to lead by the second belt drive component Groove rotates；Each reclaiming plate is obliquely installed, and its inner side is higher than outside.