CN217043561U

CN217043561U - Cylindrical workpiece surface flaw detection device

Info

Publication number: CN217043561U
Application number: CN202220983049.3U
Authority: CN
Inventors: 蒋乐; 汤永山; 唐为玲
Original assignee: Wuxi Jingzhi Testing Technology Co ltd
Current assignee: Wuxi Jingzhi Testing Technology Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-07-26
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a cylindricality work piece surface flaw detection device, including fixture, elevating system and detection mechanism, fixture includes rotating assembly and fixed subassembly, and the both sides of production line are located to rotating assembly and fixed subassembly, and rotating assembly and the cooperation of fixed subassembly are used for fixed and rotatory work piece. The lifting mechanism comprises a lifting cylinder, an output shaft of the lifting cylinder is connected with the clamping mechanism, and the output shaft of the lifting cylinder reciprocates along the vertical direction; the lifting mechanism is used for lifting the workpiece on the production line. The detection mechanism is matched with the clamping mechanism and used for acquiring images of the surface of the workpiece. The utility model discloses automatic acquisition cylindricality work piece surface image can be realized to the device to the image of collection is more comprehensive.

Description

Cylindrical workpiece surface flaw detection device

Technical Field

The utility model relates to an outward appearance check out test set technical field specifically is a cylindricality work piece surface flaw detection device.

Background

It is known that when workpieces are manufactured in large quantities in factories, quality defects of different degrees often occur for different reasons. In order to better realize the performance of industrial products to which the workpieces belong, appearance detection is generally required to be carried out on the produced workpieces, and unqualified products are removed.

In the detection process, in order to comprehensively acquire the image of the surface of the cylindrical workpiece on the production line and prevent the workpiece from shifting in the detection process, the workpiece needs to be fixed and rotated so that the surface image of the workpiece is acquired. The device therefore generally needs to have the following requirements: 1. the workpiece is ensured not to move in the working process; 2. the clamping force is proper in size, so that the situation that the workpiece is clamped to be deformed is reduced; 3. the working process is reliable and safe; 4. the clamping device is economical and practical, the clamping action is rapid, and the operation of the clamping device is convenient and labor-saving.

Patent "CN 202021481295.6" discloses a novel cylindrical work piece surface defect detection device, fixes and rotates the work piece through first grip slipper and second grip slipper, and below test probe removes and detects corresponding position. However, the device of this patent has the following problems: 1. extra manpower or machinery is needed to convey the workpiece between the first clamping seat and the second clamping seat; 2. the workpiece is easy to deform in the fixing mode of the first clamping seat and the second clamping seat; 3. only one workpiece can be detected independently at a time, and the detection speed is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the fixed mode among the prior art and make the work piece produce deformation and detect the slow scheduling problem of speed, the utility model provides a cylindricality work piece surface flaw detection device, include:

the clamping mechanism comprises a rotating assembly and a fixing assembly, the rotating assembly and the fixing assembly are arranged on two sides of the production line, and the rotating assembly is matched with the fixing assembly and used for fixing and rotating workpieces;

the lifting mechanism comprises a lifting cylinder, an output shaft of the lifting cylinder is connected with the clamping mechanism, and the output shaft of the lifting cylinder reciprocates along the vertical direction; the lifting mechanism is used for lifting the workpiece on the production line;

the detection mechanism is matched with the clamping mechanism and used for acquiring images of the surface of the workpiece.

As a further improvement of the technical scheme:

the rotating assembly comprises a first fixed seat, a first air cylinder, a rotating seat, a rotating shaft and a rotating motor, the rotating seat is connected with the first fixed seat in a sliding mode, the first air cylinder is connected with the first fixed seat, and an output shaft of the first air cylinder is connected with the rotating seat; the rotating shaft is connected with the rotating seat in a rotating mode, the rotating motor is connected with the rotating seat, an output shaft of the rotating motor is in transmission connection with one end of the rotating shaft through a belt, the other end of the rotating shaft is used for fixing and rotating workpieces, and the rotating shafts are multiple in number.

The fixing assembly comprises a second fixing seat, a second air cylinder, a clamping seat and a clamping shaft, the clamping seat is connected with the second fixing seat in a sliding mode, the second air cylinder is connected with the second fixing seat, and an output shaft of the second air cylinder is connected with the clamping seat; the clamping shaft and the rotation shaft are coaxially arranged, one end of the clamping shaft is rotatably connected with the clamping seat, the other end of the clamping shaft is used for fixing workpieces, and the number of the clamping shafts is multiple.

The first fixing seat is connected with the second fixing seat through a substrate, and the substrate is located below the production line.

The lifting mechanism further comprises a lifting seat, a limiting sleeve, a limiting shaft and a lifting arm, the lifting cylinder is connected with the lifting seat, and an output shaft of the lifting cylinder is connected with the substrate; the limiting sleeve is connected with the lifting seat, the limiting shaft is connected with the substrate, and the limiting sleeve is sleeved on the limiting shaft; the quantity of lifting arm is a plurality of, and is a plurality of the lifting arm is along production line symmetry, the one end of lifting arm with the seat is connected, and the other end runs through the base plate.

The clamping shaft comprises a fixed core and a movable sleeve, the fixed core is connected with the clamping seat, and the movable sleeve is sleeved on the fixed core and is rotatably connected with the clamping seat; the movable sleeve comprises a head part, a spring and a base part, the spring is connected with the head part and the base part, the base part is rotatably connected with the clamping seat, and the head part is used for fixing a workpiece.

The detection mechanism comprises a linear array camera and an auxiliary light source.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) when the lifting mechanism is lifted, the workpiece on the production line can be driven to be lifted between the rotating assembly and the fixing assembly; the rotating assembly and the fixing assembly can approach or depart from each other, so that the workpiece can be clamped or loosened; when the rotating assembly drives the workpiece to rotate, the detection mechanism collects the image of the surface of the workpiece. The utility model discloses automatic acquisition cylindricality work piece surface image can be realized to the device to the image of collection is more comprehensive.

(2) The height of the axis of the rotating shaft and the height of the axis of the clamping shaft relative to the production line can be adjusted by adjusting the position of the substrate, so that the rotary clamping device is suitable for workpieces with different axis heights and is convenient to maintain; the images of a plurality of workpieces can be acquired simultaneously, and the equipment has compact space and high efficiency; the spring can adjust the pressure that the centre gripping axle applyed to the work piece, prevents that the work piece from producing deformation.

(3) Mechanical clamping is adopted, so that the stability is high; the air cylinder compressed air is used as power to push the pressure lever, so that the clamping and loosening speed is high, the installation cost is low, and the device is economical and practical; compared with manual clamping, the clamping device is time-saving and labor-saving, simple and convenient to operate and high in safety performance.

(4) Utilize mechanical detection to replace artifical the detection, can guarantee production quality and can improve production efficiency again for the reasonable arrangement activity duration of producers.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a clamping mechanism;

FIG. 3 is a schematic view of the lift mechanism;

fig. 4 is another view angle overall structure diagram.

Reference numerals:

1. a clamping mechanism; 11. a rotating assembly; 111. a first fixed seat; 112. a first cylinder; 113. a rotating base; 114. a rotating shaft; 115. a rotating electric machine; 12. a fixing component; 121. a second fixed seat; 122. a second cylinder; 123. a clamping seat; 124. a clamping shaft; 13. a substrate; 2. a lifting mechanism; 21. a lifting cylinder; 22. a lifting seat; 23. a position limiting sleeve; 24. a limiting shaft; 25. a lift arm; 3. a detection mechanism; 31. a line scan camera; 32. an auxiliary light source.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention. Those skilled in the art will be able to combine and combine features of different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

Fig. 1 illustrates the overall structure schematic diagram of the present invention, fig. 2 illustrates the schematic diagram of the clamping mechanism 1, fig. 3 illustrates the schematic diagram of the lifting mechanism 2, fig. 4 illustrates the overall structure schematic diagram of another viewing angle, as shown in fig. 1-4, the device for detecting surface flaws of a cylindrical workpiece of this embodiment includes: fixture 1, elevating system 2 and detection mechanism 3, fixture 1 includes rotating assembly 11 and fixed subassembly 12, and the both sides of production line are located to rotating assembly 11 and fixed subassembly 12, and rotating assembly 11 and the cooperation of fixed subassembly 12 for fixed and rotatory work piece. The lifting mechanism 2 comprises a lifting cylinder 21, an output shaft of the lifting cylinder 21 is connected with the clamping mechanism 1, and the output shaft of the lifting cylinder 21 reciprocates along the vertical direction; the lifting mechanism 2 is used for lifting the workpieces on the production line. The detection mechanism 3 is matched with the clamping mechanism 1, and the detection mechanism 3 is used for acquiring images of the surface of the workpiece.

It should be noted here that the rotating assembly 11 and the fixed assembly 12 can move toward or away from each other, so as to clamp or unclamp a workpiece. When the lifting mechanism 2 is lifted, the workpieces on the production line can be driven to be lifted between the rotating assembly 11 and the fixing assembly 12. When the rotating component 11 drives the workpiece to rotate, the detection mechanism 3 acquires an image of the surface of the workpiece. The utility model discloses the device can realize automatic acquisition cylindricality work piece surface image to the image of gathering is more comprehensive.

According to the embodiment of the present invention, as shown in fig. 2, the rotating assembly 11 includes a first fixing base 111, a first cylinder 112, a rotating base 113, a rotating shaft 114 and a rotating electrical machine 115, the rotating base 113 is slidably connected to the first fixing base 111, the first cylinder 112 is connected to the first fixing base 111, and an output shaft of the first cylinder 112 is connected to the rotating base 113; the rotating shaft 114 is rotatably connected with the rotating base 113, the rotating motor 115 is connected with the rotating base 113, an output shaft of the rotating motor 115 is in transmission connection with one end of the rotating shaft 114 through a belt, the other end of the rotating shaft 114 is used for fixing and rotating workpieces, and the number of the rotating shafts 114 is multiple.

It should be noted that the first cylinder 112 can push the rotating base 113 to move toward the workpiece, so that the plurality of rotating shafts 114 abut against the plurality of workpieces, and the rotating motor 115 drives the plurality of rotating shafts 114 to rotate synchronously through the belt, so as to drive the plurality of workpieces to rotate synchronously, so that the images of the surfaces of the workpieces are collected by the detection mechanism 3.

According to the embodiment of the present invention, as shown in fig. 2, the fixing assembly 12 includes a second fixing base 121, a second cylinder 122, a clamping base 123 and a clamping shaft 124, the clamping base 123 is slidably connected to the second fixing base 121, the second cylinder 122 is connected to the second fixing base 121, and an output shaft of the second cylinder 122 is connected to the clamping base 123; the clamping shaft 124 is coaxially arranged with the rotating shaft 114, one end of the clamping shaft 124 is rotatably connected with the clamping seat 123, the other end of the clamping shaft 124 is used for fixing a workpiece, and the number of the clamping shafts 124 is multiple.

It should be noted that the second cylinder 122 can push the clamping base 123 toward the workpieces, so that the plurality of clamping shafts 124 abut against the plurality of workpieces, and the clamping shafts 124 rotate with the workpieces.

According to the utility model discloses an embodiment, first fixing base 111 and second fixing base 121 pass through base plate 13 and connect, and base plate 13 is located the below of production line.

Here, it should be noted that the height of the axis of the rotating shaft 114 and the axis of the clamping shaft 124 with respect to the production line can be adjusted by adjusting the position of the substrate 13, so that the device is suitable for workpieces having different axis heights, and is convenient for maintenance.

According to the embodiment of the present invention, as shown in fig. 3 and 4, the lifting mechanism 2 further includes a lifting seat 22, a limiting sleeve 23, a limiting shaft 24 and a lifting arm 25, the lifting cylinder 21 is connected with the lifting seat 22, and an output shaft of the lifting cylinder 21 is connected with the substrate 13; the limiting sleeve 23 is connected with the lifting seat 22, the limiting shaft 24 is connected with the substrate 13, and the limiting sleeve 23 is sleeved on the limiting shaft 24; the number of the lifting arms 25 is multiple, the plurality of lifting arms 25 are symmetrical along the production line, one end of each lifting arm 25 is connected with the lifting seat 22, and the other end of each lifting arm 25 penetrates through the substrate 13.

Here, the lift cylinder 21 can raise the lift arm 25 with respect to the base plate 13, and the lift arm 25 can lift the axis of the workpiece to be collinear with the axis of the rotary shaft 114 and the axis of the clamp shaft 124. The limiting sleeve 23 can limit the limiting shaft 24, so that the substrate 13 moves along the extending direction of the limiting sleeve 23, the number of the limiting sleeves 23 can be multiple, and the limiting sleeves 23 are symmetrical along the vertical central plane of the substrate 13, so that the substrate 13 moves more stably; and the spacing sleeve 23 can also limit the minimum distance between the base plate 13 and the lifting seat 22, so that the distance of each movement of the lifting seat 22 is the same.

According to the embodiment of the present invention, the clamping shaft 124 comprises a fixed core and a movable sleeve, the fixed core is connected to the clamping base 123, and the movable sleeve is sleeved on the fixed core and rotatably connected to the clamping base 123; the movable sleeve comprises a head, a spring and a base, the spring is connected with the head and the base, the base is rotatably connected with the clamping seat 123, and the head is used for fixing a workpiece. The spring can adjust the pressure applied by the clamping shaft 124 to the workpiece, and prevent the workpiece from deforming.

According to the utility model discloses an embodiment, detection mechanism 3 includes line camera 31 and auxiliary light source 32. The line camera 31 collects images of the surface of the workpiece and uploads the images to a control system (not shown in the figure), and the control system judges the quality of the workpiece and guides a subsequent device to remove inferior workpieces.

When the utility model is used, a workpiece is placed on a production line, and equipment is started; the lifting cylinder 21 below the device operates to lift the workpiece upwards, so that the axis of the workpiece is collinear with the axis of the rotating shaft 114 and the axis of the clamping shaft 124; the first air cylinder 112 pushes the rotating base 113 to move towards the workpiece, and simultaneously the second air cylinder 122 pushes the clamping base 123 to move towards the workpiece, so that the rotating shafts 114 and the clamping shafts 124 abut against the workpiece from two ends of the workpiece; the detection mechanism 3 starts to acquire the image of the surface of the workpiece; the rotating motor 115 drives the rotating shaft 114 to rotate through a belt, so as to drive the workpiece to rotate, the detection mechanism 3 continuously performs image acquisition on the surface of the workpiece, and the image acquisition on the surface of the workpiece is automatically completed; the collected images are uploaded to a control system, and the control system judges the quality of the workpiece and guides a follow-up device to reject the inferior workpiece.

The utility model discloses in the technical scheme of each embodiment can make up, technical feature in the embodiment also can make up and form new technical scheme, the structure that does not mention, can realize the correlation function in the embodiment is prior art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cylindrical workpiece surface flaw detection device, comprising:

2. The apparatus for detecting surface defects of a cylindrical workpiece according to claim 1, wherein the rotating assembly comprises a first fixed base, a first air cylinder, a rotating base, a rotating shaft and a rotating motor, the rotating base is slidably connected with the first fixed base, the first air cylinder is connected with the first fixed base, and an output shaft of the first air cylinder is connected with the rotating base; the rotating shaft is connected with the rotating seat in a rotating mode, the rotating motor is connected with the rotating seat, an output shaft of the rotating motor is in transmission connection with one end of the rotating shaft through a belt, the other end of the rotating shaft is used for fixing and rotating workpieces, and the rotating shafts are multiple in number.

3. The cylindrical workpiece surface flaw detection device according to claim 2, wherein the fixing assembly comprises a second fixing seat, a second air cylinder, a clamping seat and a clamping shaft, the clamping seat is slidably connected with the second fixing seat, the second air cylinder is connected with the second fixing seat, and an output shaft of the second air cylinder is connected with the clamping seat; the clamping shaft and the rotating shaft are coaxially arranged, one end of the clamping shaft is rotatably connected with the clamping seat, the other end of the clamping shaft is used for fixing workpieces, and the number of the clamping shafts is multiple.

4. The apparatus of claim 3, wherein the first and second holders are connected by a substrate, and the substrate is located below the production line.

5. The cylindrical workpiece surface flaw detection device according to claim 4, wherein the lifting mechanism further comprises a lifting seat, a limiting sleeve, a limiting shaft and a lifting arm, the lifting cylinder is connected with the lifting seat, and an output shaft of the lifting cylinder is connected with the base plate; the limiting sleeve is connected with the lifting seat, the limiting shaft is connected with the substrate, and the limiting sleeve is sleeved on the limiting shaft; the quantity of lifting arm is a plurality of, and is a plurality of the lifting arm is along production line symmetry, the one end of lifting arm with the seat that goes up and down is connected, and the other end runs through the base plate.

6. The cylindrical workpiece surface flaw detection device according to any one of claims 3 to 5, wherein the clamping shaft comprises a fixed core and a movable sleeve, the fixed core is connected with the clamping seat, and the movable sleeve is sleeved on the fixed core and is rotatably connected with the clamping seat; the movable sleeve comprises a head part, a spring and a base part, the spring is connected with the head part and the base part, the base part is rotatably connected with the clamping seat, and the head part is used for fixing a workpiece.

7. The cylindrical workpiece surface flaw detection apparatus of any one of claims 1 to 5, wherein the detection mechanism comprises a line camera and an auxiliary light source.