CN210365927U - Turnover device and detection system - Google Patents

Abstract

The utility model provides a turning device and detecting system, adsorb the module including base station, first absorption module and upset. The workpiece which is positioned on the jig and faces upwards is adsorbed and fixed through the overturning adsorption module, the workpiece is overturned at a proper angle, the first sucker is convenient to be butted with the second sucker on the overturning adsorption module, the reverse side of the workpiece on the first sucker is butted with the reverse side of the workpiece on the second sucker, the workpiece is separated from the second sucker and is adsorbed and fixed on the first sucker, the first sucker is aligned with the jig in the positioning groove, the workpiece faces towards the jig in the front side and is placed on the jig, the reverse side of the workpiece placed on the jig again faces upwards, and the subsequent processes are convenient to carry out. And forward and reverse visual detection devices are arranged on two sides of the turnover device, and the surfaces of the workpiece before and after turnover are respectively detected. The degree of automation of work piece upset is high, greatly reduced the cost of labor, improved efficiency.

Description

Turnover device and detection system

Technical Field

The utility model belongs to the technical field of fixing device, concretely relates to turning device and detecting system.

Background

The FPC (i.e. flexible circuit board) is widely applied to various electronic products, and is favored by the excellent characteristics of light weight, thin thickness, free bending and folding, etc., but the quality detection of the FPC in China mainly depends on the traditional manual visual inspection, because the FPC has the characteristics of light weight, thin thickness and free bending and folding, the FPC can form suspended bending when being placed on the surface of the jig, when the flat cable on the surface of the FPC product is manually detected, the suspended part of the FPC is manually pressed on the jig, and all parts of the flat cable are observed through an amplifier, the flatness of the FPC is always required to be kept in the observation process, and the flat cable is arranged on the front surface and the back surface of the FPC, in manual line production, after the front detection is finished, the FPC product needs to be manually moved out of the placing groove and turned for 180 degrees so as to detect the back flat cable, and the turned FPC still needs to be accurately placed in another placing groove.

In addition, with the rapid development of the electronic industry, the design of the circuit board tends to be higher and higher in precision and density, the unit time of individual detection of the FPC product is long, the manual turning speed is low, the accuracy is poor, the workload is large, the cost is high, the efficiency is low, and the production requirement cannot be met in long-term flow production.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that adopt artifical upset flexible sheet material with high costs and inefficiency.

Therefore, the utility model provides a turnover device, include

A base station having a positioning groove;

the first adsorption module is arranged on the base platform and is provided with a first driving assembly and a first sucker;

the overturning adsorption module is arranged on the base station and is provided with a second sucker;

the first sucker and the second sucker are suitable for sucking and fixing a workpiece to be turned;

the overturning adsorption module is suitable for driving the second sucker to overturn and switch between a first state of directly facing the positioning groove and a second state of directly facing the first sucker;

the first driving assembly is suitable for driving the first suction cup to move towards the positioning groove or the second suction cup.

Preferably, in the turnover device, the first suction module further includes at least one first guide assembly for guiding the first suction tray to move toward the positioning slot

The first guide assembly comprises

The first guide rail is arranged on the base platform in parallel with the moving track of the first suction disc towards the positioning groove;

at least one first slide block fixed on the first sucker; the first sliding block is arranged on the first guide rail in a sliding mode.

Preferably, in the above turnover device, the turnover adsorption module further includes

The mounting seat is arranged on the base platform;

the rotating cylinder is fixed on the mounting seat and is provided with a rotating table; the second sucker is fixed on the rotating platform.

Preferably, in the above turnover device, the turnover adsorption module further has a second driving assembly;

the second drive assembly comprises

A second driver and a second drive shaft; the second driver is fixed on the rotating platform; one end of the second driving shaft is connected with the second driver, and the other end of the second driving shaft is connected with the second sucker;

the second driver is suitable for driving the second driving shaft so as to drive the second sucker to do telescopic motion along the extension direction of the second driving shaft.

Preferably, in the turnover device, the first suction cup and the second suction cup are both provided with a suction assembly;

any one of the adsorption assemblies comprises

The adsorption holes are respectively formed in the wall surfaces of the first sucker and the second sucker, which are opposite to each other;

a vacuum generator disposed on the base;

and the vacuum pipe is connected with the adsorption hole and the vacuum generator.

Preferably, the turning device further comprises

The deviation rectifying assembly is arranged between the first sucker and the second sucker;

the deviation rectifying assembly is suitable for compensating the position deviation between two opposite planes when the first sucker and the second sucker are mutually butted.

Preferably, in the above turnover device, the deviation rectifying component includes

The shaft sleeves are arranged on the other of the first sucking disc and the second sucking disc and correspond to the pin shafts one by one;

and a spring disposed between the first suction cup and/or the second suction cup and its corresponding actuator.

Preferably, in the turnover device, the first adsorption module is suspended on the base; the first suction disc is opposite to the positioning groove;

the overturning adsorption module is arranged between the base platform and the first adsorption module;

also comprises

The third driving assembly is connected with the overturning adsorption module and arranged on the base platform; the third driving component is suitable for driving the overturning adsorption module to move in or out of the region opposite to the position between the first sucker and the positioning groove.

The utility model provides a detection system, include

The turnover device is arranged above;

and the forward visual detection device and the reverse visual detection device are respectively arranged on two sides of the turnover device and used for detecting the surface of the workpiece to be detected before and after turnover.

Preferably, the above detection system further comprises

The conveying device is suitable for uniformly placing the workpieces to be detected; the conveying device is suitable for driving the workpiece to be detected to sequentially pass through the forward visual detection device, the turnover device and the reverse visual detection device one by one.

The technical scheme of the utility model, have following advantage:

1. the utility model provides a pair of turning device, adsorb the module through the upset and will be located the positive work piece up on the tool and adsorb fixedly, the suitable angle of upset, be convenient for first sucking disc and the butt joint of the second sucking disc on the module is adsorbed in the upset, the reverse side butt joint of the work piece on first sucking disc and the second sucking disc, the work piece breaks away from the second sucking disc and adsorbs to fix on first sucking disc, the tool in the constant head tank is aimed at to first sucking disc, openly move towards the tool with the work piece and place on the tool, place the work piece reverse side on the tool up again this moment, be convenient for going on of follow-up process, the degree of automation of work piece upset is high, greatly reduced the cost of labor, and.

2. The utility model provides a pair of turning device sets up the subassembly of rectifying on first sucking disc and second sucking disc, through the cooperation of round pin axle and axle sleeve for first sucking disc leads with the second sucking disc when the butt joint, through the positional deviation between two butt joint planes of the first sucking disc of swing adjustment of spring and second sucking disc, makes first sucking disc and second sucking disc keep just to the position, has improved the accuracy that the upset was placed.

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

Fig. 1 is a schematic structural view of the turning device of the present invention;

fig. 2 is a partial schematic view of the turning device of the present invention;

fig. 3 is a partial schematic view of the turning device of the present invention;

fig. 4 is a schematic structural view of a first suction cup in the turnover device of the present invention;

fig. 5 is a schematic structural view of a second suction cup in the turnover device of the present invention;

fig. 6 is a schematic view of the turning device of the present invention showing the front state of the workpiece placed on the jig;

fig. 7 is a schematic view of the reverse state of the turnover device of the present invention, wherein the workpiece is placed on the fixture.

Description of reference numerals:

1-base station; 11-a positioning groove; 12-mounting the frame; 13-lower frame;

21-a first drive assembly; 211-a first driver; 212 — a first drive shaft; 22-a first suction cup; 23-a first guide assembly; 231-a first guide rail; 232-a first slider; 24-a sleeve; 25-a first mounting plate; 26-a first mounting frame; 27-a second mounting plate; 28-a main panel;

31-a mounting seat; 32-a second suction cup; 33-a rotary cylinder; 34-a rotating table; 35-a second drive assembly; 36-a third mounting plate;

41-adsorption holes; 42-vacuum tube; 43-a vacuum generator;

51-a pin shaft; 52-shaft sleeve; 53-a spring;

6-a third drive assembly; 61-a third driver; 62-a third drive shaft;

7-a second guide assembly; 71-a second guide rail; 72-a second slide;

8-a jig; 9-pressure switch.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The present embodiment provides a flipping apparatus, as shown in fig. 1, including a base 1, a first adsorption module and a flipping adsorption module. The lower frame 13 is arranged below the base station 1, the upper frame 12 is arranged above the base station 1, the positioning groove 11 is formed in the surface of the base station 1, and the jig 8 carries a workpiece to be turned and stays in the positioning groove 11. In this embodiment, first absorption module and upset absorption module are whole to be vertical distribution, and the unsettled setting of first absorption module is on base station 1, and the upset is adsorbed the module and is set up between first absorption module and base station 1. As shown in fig. 1 to 3, the upper frame 12 is composed of two side-by-side F-shaped brackets, a connecting beam is arranged between the two brackets, the vertical part of the F-shaped bracket is fixed on the base 1, the front ends of the four horizontal parts of the two F-shaped brackets are fixedly connected with a main panel 28, and the first adsorption module is installed on the main panel 28.

The first suction module includes a first driving assembly 21, a first guide assembly 23, and a first suction pad 22. In this embodiment, the first adsorption module is moved in a linear manner, the first driving assembly 21 and the first guiding assembly 23 are disposed from top to bottom on a side wall surface of the main panel 28 facing away from the F-shaped horizontal portion, the first driving assembly 21 includes a first driver 211 and a first driving shaft 212, the first driver 211 is mounted at a top end of the main panel 28, in this embodiment, the first driving shaft 212 is a transmission screw, the transmission screw is connected to the first driver 211 and extends from top to bottom to be disposed at a middle position of the main panel 28, as shown in fig. 3, a sleeve 24 in threaded engagement with the transmission screw is sleeved on the transmission screw, as shown in fig. 1 or fig. 2, the first mounting plate 25 is fixedly connected to the sleeve 24, the first guiding assembly 23 is disposed between the first mounting plate 25 and the main panel 28, the first guiding assembly 23 includes a first guiding rail 231 and at least one first sliding block 232, in this embodiment, two first sliding blocks 232 are arranged, one first sliding block 232 is arranged on each of the two sides of the sleeve 24 on the first mounting plate 25, and two first guide rails 231 extending from top to bottom are fixedly mounted on the main panel 28 in a one-to-one correspondence with the first sliding blocks 232. First mounting panel 25 symmetry sets up two first mounting brackets 26 on the lateral wall face of sleeve 24 dorsad, and first mounting bracket 26 below is fixed with second mounting panel 27, and second mounting panel 27 below sets up first sucking disc 22, sets up pressure switch 9 on the second mounting panel 27, and first sucking disc 22 is just to the constant head tank 11 on the base station 1, just sets up tool 8 promptly.

The overturning adsorption module comprises a mounting seat 31, a rotating cylinder 33, a rotating platform 34, a second suction cup 32 and a second driving assembly 35. The vertical installation of revolving cylinder 33 is fixed on mount pad 31, second drive assembly 35 passes through revolving stage 34 and connects the setting on revolving cylinder 33, set up pressure switch 9 on the second drive assembly 35, second drive assembly 35 includes second driver (be located inside not shown in the figure) and second drive shaft (be located inside not shown in the figure), the second driver adopts the cylinder, the second drive shaft adopts the push rod, the cylinder is connected to push rod one end, third mounting panel 36 is connected to one end, connect second sucking disc 32 on the third mounting panel 36, revolving cylinder 33 is suitable for driving second sucking disc 32 and winds the upset of revolving stage 34, second drive assembly 35 is suitable for driving second sucking disc 32 and stretches out and draws back along the direction of the rotation axis of perpendicular with revolving stage 34. The overturning adsorption module is arranged on the third driving assembly 6 in a sliding mode through the mounting seat 31.

As shown in fig. 1, the third driving assembly 6 includes a third driver 61 and a third driving shaft 62, the third driver 61 is fixed on the base platform 1 and located between the two F-shaped brackets, the third driving shaft 62 is connected to the third driver 61 and extends toward the positioning slot 11 where the jig 8 is located, the mounting base 31 is slidably sleeved on the third driving shaft 62, the second guiding assemblies 7 are further disposed on the base platform 1 on both sides of the third driving shaft 62, the second guiding assemblies 7 include second guide rails 71 and at least one second slider 72, in this embodiment, two second guide rails 71 are disposed, the two second guide rails 71 are parallel to each other and symmetrically distributed on both sides of the third driving shaft 62 and extend toward the positioning slot 11, two second sliders 72 are disposed below the mounting base 31 respectively corresponding to the second guide rails 71, under the driving of the third driver 61, the overturning adsorption module can horizontally move into the facing area between the first suction disc 22 and the positioning slot 11 to overturn the workpiece, or horizontally moving out of the area opposite to the positioning groove 11 between the first suction tray 22 and the positioning groove 11 provides a way for the first suction module to drive the first suction tray 22 to move towards the jig 8 in the positioning groove 11.

As shown in fig. 1 to 3, the first suction cup 22, the second suction cup 32 and the jig 8 are respectively provided with an adsorption component and a deviation rectifying component, and the adsorption component includes an adsorption hole 41, a vacuum generator 43 and a vacuum tube 42. As shown in fig. 4, a plurality of suction holes 41 adapted to the reverse side shape of the workpiece are distributed on the suction panel of the first suction cup 22, a vacuum tube 42 is arranged on the side wall surface of the first suction cup 22, the vacuum tube 42 is connected with the inner cavity of the first suction cup 22 and is communicated with all the suction holes 41 on the first suction cup 22, as shown in fig. 5, a plurality of suction holes 41 adapted to the front side shape of the workpiece are distributed on the suction panel of the second suction cup 32, a vacuum tube 42 is arranged on the side wall surface of the second suction cup 32, the vacuum tube 42 is connected with the inner cavity of the second suction cup 32 and is communicated with all the suction holes 41 on the second suction cup 32, and the suction holes 41 on the first suction cup 22 and the second suction cup 32 are distributed integrally. As shown in fig. 2, two vacuum generators 43 are distributed on the upper frame 12, one vacuum generator 43 corresponds to each suction cup, and the vacuum generators 43 are connected to the vacuum pipes 42 through air pipes (not shown) to perform a vacuum-pumping operation at the suction holes 41.

As shown in fig. 6 or 7, the placing panel of the jig 8 is distributed with a plurality of adsorption holes 41 respectively matched with the back side appearance and the front side appearance of the workpiece, and the adsorption holes 41 on the front side and the back side are integrally distributed on the jig 8 in an axisymmetric manner, for example, the adsorption holes 41 matched with the front side appearance of the workpiece in fig. 5 are suitable for facing the position of the workpiece placed in fig. 6, and the adsorption holes 41 matched with the back side appearance of the workpiece in fig. 4 are suitable for facing the position of the workpiece placed in fig. 7. The side wall surface of the jig 8 is provided with a plurality of vacuum tubes 42, all the vacuum tubes 42 are communicated with the adsorption holes 41 on the placing panel of all the jigs 8, and the vacuum tubes 42 are connected with a vacuum generator (not shown in the figure) of the jig 8. The first sucking disc 22, the second sucking disc 32 and the jig 8 are respectively provided with an adsorption component matched with the front and back shapes of the workpiece, so that the flexible plate (such as FPC) can be kept flat all the time in the moving and overturning processes, the bending damage can not occur, and the detection of flat cables or other appearances on the front and back surfaces of the flexible plate is facilitated.

The deviation rectifying assembly comprises a pin 51, a bushing 52 and a spring 53. The first suction cup 22, the second suction cup 32 and the jig 8 are respectively provided with a deviation rectifying component suitable for mutual matching, as shown in fig. 4, two symmetrical shaft sleeves 52 and two pin shafts 51 are arranged on the surface of the suction hole 41 of the first suction cup 22, all the pin shafts 51 and the shaft sleeves 52 on the first suction cup 22 are positioned on four vertexes of a rectangle, the shaft sleeves 52 are positioned on two vertexes of the same diagonal, and the pin shafts 51 are positioned on two vertexes of the other diagonal. As shown in fig. 5, the shaft sleeves 52 are respectively arranged on four top ends of the surface of the second suction cup 32 located on the suction hole 41, which are matched with the rectangle surrounded by the shaft sleeve 52 and the pin shaft 51 on the first suction cup 22, and when the first suction cup 22 is butted with the second suction cup 32, the two pin shafts 51 of the first suction cup 22 can be inserted into the two corresponding shaft sleeves 52 of the second suction cup 32. As shown in fig. 6 or 7, the jig 8 is provided with two symmetrical shaft sleeves 52 and two pin shafts 51 on the surface of the suction hole 41, the pin shafts 51 and the shaft sleeves 52 on the surface of the jig 8 enclose a rectangle identical to that on the first suction cup 22, the two pin shafts 51 on the jig 8 are arranged on two vertexes of the same diagonal line corresponding to the two shaft sleeves 52 on the first suction cup 22, the two shaft sleeves 52 on the jig 8 are arranged on two vertexes of the other diagonal line corresponding to the two pin shafts 51 on the first suction cup 22, and when the first suction cup 22 is butted with the jig 8, the corresponding pin shafts 51 and the shaft sleeves 52 are mutually inserted together to align the first suction cup 22 with the jig 8. When the second suction cup 32 is butted with the jig 8, the two pins 51 on the jig 8 can be inserted into the two corresponding shaft sleeves 52 of the second suction cup 32.

As shown in any one of fig. 1 to 3, springs 53 are disposed between the first suction cup 22 and the second mounting plate 27, and between the second suction cup 32 and the third mounting plate 36, in this embodiment, four connecting members are further disposed between the first suction cup 22 and the second mounting plate 27, and between the second suction cup 32 and the third mounting plate 36, and are respectively located at four vertex angles opposite to the first suction cup 22 and the second mounting plate 27, and four vertex angles corresponding to the second suction cup 32 and the third mounting plate 36, and a spring 53 is sleeved on any one of the connecting members, in this embodiment, the connecting member is a telescopic ball head, and the position deviation between any two butting planes can be compensated through the swinging of the telescopic ball head and the spring 53 when the first suction cup 22 and the second suction cup 32 are butted, when the first suction cup 22 is butted with the fixture 8, and when the second suction cup 32 is butted with the fixture 8, the pin shaft 51 and the shaft sleeve 52 are matched and aligned, the opposite position between the two butt-joint planes is always kept, and the accuracy of overturning placement is improved.

In this embodiment, the first guide assembly 23 and the second guide assembly 7 are respectively provided with a travel switch and a limit buffer.

The turning process of the turning device in this embodiment is as follows:

take FPC transport flip as an example;

the turnover adsorption module is located outside the area where the first suction cup 22 is opposite to the jig 8 (namely, below the upper bracket), the second suction cup 32 is located below, and the first suction cup 22 is in an initial state when located at the top.

The jig 8 carries the FPC (as shown in fig. 6) with the front surface facing upward and enters the positioning groove 11, the third driving assembly 6 drives the overturning adsorption module to move to the upper part of the jig 8, and the second sucking disc 32 is opposite to the jig 8;

the second driving assembly 35 pushes the second suction cup 32 to move downwards to be in butt joint with the jig 8, the vacuum generator of the jig 8 is closed, the vacuum generator 43 of the second suction cup 32 is started, and the front surface of the FPC is fixedly adsorbed on the second suction cup 32;

the second driving component 35 moves upwards to completely separate the second suction cup 32 from the jig 8;

starting the rotary air cylinder 33 to drive the second suction cup 32 to rotate 180 degrees, so that the second suction cup 32 is opposite to the first suction cup 22;

starting the first driving assembly 21 to drive the first suction cup 22 to move downwards and butt with the second suction cup 32; turning off the vacuum generator 43 of the second suction cup 32, starting the vacuum generator 43 of the first suction cup 22, and fixing the reverse side of the FPC on the first suction cup 22 in an absorption manner;

the first driving assembly 21 moves upward to completely separate the first suction cup 22 from the second suction cup 32;

the third driving assembly 6 drives the overturning adsorption module to return to the initial state;

the first driving assembly 21 drives the first suction disc 22 to move downwards and butt with the jig 8, the vacuum generator 43 of the first suction disc 22 is closed, the vacuum generator of the jig 8 is started, the front surface of the FPC is fixedly adsorbed on the jig 8, and the back surface of the FPC on the jig 8 faces upwards (as shown in fig. 7);

the first driving assembly 21 moves upward to return to the initial state, and the process of turning over once is finished.

As a first alternative embodiment of the embodiment 1, the connection between the first suction cup 22 and the second mounting plate 27, and between the second suction cup 32 and the third mounting plate 36 may be achieved by only using the spring 53 without providing a connecting member; still further, the spring 53 may be provided only between the second suction cup 32 and the third mounting plate 36.

As a second alternative embodiment of example 1, the engagement of the guide rails and the sliders in the first guide assembly 23 and the second guide assembly 7 may be replaced by a rack and pinion engagement.

Example 2

This embodiment provides an inspection system including the turning device, the forward visual inspection device, the reverse visual inspection device, and the conveying device of embodiment 1. Forward visual detection device and reverse visual detection device set up in turning device both sides along conveyor's direction of delivery respectively, and conveyor is last equally divide to place to carry on to treat the tool 8 of examining the work piece (like FPC), and conveyor drives to wait to examine the work piece and pass through forward visual detection device, turning device and reverse visual detection device one by one in proper order to detect the winding displacement or the outward appearance of the work piece tow sides before the upset and after the upset.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. A turnover device, comprising:

a base (1) having a positioning groove (11);

the first suction module is arranged on the base platform (1) and is provided with a first driving component (21) and a first suction cup (22);

the overturning adsorption module is arranged on the base station (1) and is provided with a second sucker (32);

the first suction cup (22) and the second suction cup (32) are suitable for adsorbing and fixing a workpiece to be overturned;

the overturning adsorption module is suitable for driving the second sucker (32) to overturn and switch between a first state of facing the positioning groove (11) and a second state of facing the first sucker (22);

the first driving assembly is suitable for driving the first suction cup (22) to move towards the positioning groove (11) or the second suction cup (32).

2. A roundabout according to claim 1, characterized in that said first suction module further comprises at least one first guide assembly (23) for guiding said first suction cup (22) towards said positioning slot (11);

the first guide assembly (23) comprises

A first guide rail (231) which is arranged on the base platform (1) in parallel with the moving track of the first sucker (22) towards the positioning groove (11);

at least one first slider (232) fixed on said first suction cup (22); the first sliding block (232) is arranged on the first guide rail (231) in a sliding mode.

3. The flipping mechanism of claim 1, wherein the flipping adsorption module further comprises

A mounting base (31) provided on the base (1);

a rotary cylinder (33) fixed to the mount (31) and having a rotary table (34); the second suction cup (32) is fixed on the rotating table (34).

4. The flipping device according to claim 3, wherein the flipping suction module further has a second driving assembly (35);

the second drive assembly (35) comprises

A second driver and a second drive shaft; the second drive is fixed on the rotating table (34); one end of the second driving shaft is connected with the second driver, and the other end of the second driving shaft is connected with the second sucker (32);

the second driver is suitable for driving the second driving shaft so as to drive the second sucker (32) to do telescopic motion along the extension direction of the second driving shaft.

5. The flipping device according to claim 1, wherein a suction assembly is provided on each of the first suction cup (22) and the second suction cup (32);

any one of the adsorption assemblies comprises

Suction holes (41) respectively formed in the wall surfaces of the first suction cup (22) and the second suction cup (32) facing each other;

a vacuum generator (43) provided on the base (1);

a vacuum pipe (42) connecting the adsorption hole (41) and the vacuum generator (43).

6. The flipping mechanism of claim 1, further comprising

The deviation rectifying assembly is arranged between the first sucking disc (22) and the second sucking disc (32);

the deviation rectifying component is suitable for compensating the position deviation between two opposite planes when the first sucking disc (22) and the second sucking disc (32) are mutually butted.

7. The turnover device of claim 6, wherein the deviation correcting assembly comprises at least one pin (51) provided on one of the first suction cup (22) and the second suction cup (32) and a bushing (52) provided on the other of the first suction cup (22) and the second suction cup (32) in one-to-one correspondence with the pin (51);

and a spring (53) arranged between the first suction cup (22) and/or the second suction cup (32) and its corresponding actuator.

8. The turnover device of any one of claims 1 to 7, wherein the first adsorption module is suspended on the base platform (1); the first sucker (22) is opposite to the positioning groove (11);

the overturning adsorption module is arranged between the base platform (1) and the first adsorption module;

also comprises

The third driving assembly (6) is connected with the overturning adsorption module and arranged on the base platform (1); the third driving component (6) is suitable for driving the overturning adsorption module to move in or out of the area opposite to the first sucker (22) and the positioning groove (11).

9. A detection system is characterized by comprising

The flipping mechanism of any one of the preceding claims 1-8;

and the forward visual detection device and the reverse visual detection device are respectively arranged on two sides of the turnover device and used for detecting the surface of the workpiece to be detected before and after turnover.

10. The detection system of claim 9, further comprising

The conveying device is suitable for uniformly placing the workpieces to be detected; the conveying device is suitable for driving the workpiece to be detected to sequentially pass through the forward visual detection device, the turnover device and the reverse visual detection device one by one.

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