Positioning mechanism and automatic film pasting device

Abstract

The utility model relates to the technical field of film pasting, and particularly discloses a positioning mechanism and an automatic film pasting device. The positioning mechanism comprises a supporting platform, a first limiting assembly, a second limiting assembly and a third limiting assembly. The supporting platform is provided with an assembling position. The first limiting assembly comprises a first fixed part and a first movable part, and the first fixed part and the first movable part are distributed on the two sides of the assembling position in the first direction. The second limiting assembly comprises a second fixed part and a second movable part, and the second fixed part and the second movable part are distributed on the two sides of the assembling position in the second direction. The third limiting assembly comprises a rotary limiting piece and a pushing piece, and the rotary limiting piece moves in the third direction under the action of the pushing piece. According to the positioning mechanism, through cooperation of the first limiting assembly, the second limiting assembly and the third limiting assembly, positioning of the workpiece in three directions can be achieved, the risk that the workpiece deviates during film pasting is reduced, and the film pasting precision and the yield are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of film pasting, and particularly relates to a positioning mechanism and an automatic film pasting device. BACKGROUND

[0002] In the related art, many products need to be pasted with films to ensure production and use of the products. For example, during assembly of a mobile phone, a technician needs to paste a Mic3 film on a middle plate of the mobile phone. However, the existing film pasting process is generally completed manually, and it is difficult to position the product. The product is prone to deviation during the film pasting process, resulting in a high film pasting failure rate. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a positioning mechanism and an automatic film pasting device to improve the technical problem of a high film pasting failure rate.

[0004] An embodiment of the present application provides a positioning mechanism. The positioning mechanism comprises a support platform, a first limiting assembly, a second limiting assembly, and a third limiting assembly. The support platform is provided with an assembly position configured to carry a workpiece. The first limiting assembly comprises a first fixed part and a first movable part, both of which are mounted on the support platform, and the first fixed part and the first movable part are distributed on both sides of the assembly position along a first direction. The first movable part is configured to be capable of moving towards or away from the first fixed part along the first direction. The second limiting assembly comprises a second fixed part and a second movable part, both of which are mounted on the support platform, and the second fixed part and the second movable part are distributed on both sides of the assembly position along a second direction. The second movable part is configured to be capable of moving towards or away from the second fixed part along the second direction, and the second direction intersects the first direction. The third limiting assembly comprises a rotating limiting part and a pushing part. The rotating limiting part is mounted on the support platform and located on the side of the assembly position. The rotating limiting part is configured to move along a third direction under the action of the pushing part to fix the workpiece or release the fixation of the workpiece, and the third direction intersects the first direction and the second direction.

[0005] The positioning mechanism can realize positioning of the workpiece in three directions through cooperation of the first limiting assembly, the second limiting assembly, and the third limiting assembly, which is beneficial to reducing the risk of deviation of the workpiece during film pasting and improving the precision and yield of film pasting.

[0006] In some embodiments of the present application, the rotating limiting part comprises a shaft sleeve and a rod body. The shaft sleeve is mounted on the support platform, and the rod body is slidingly inserted into the shaft sleeve along the third direction. The rod body is provided with a limiting part and an abutting part, and the limiting part and the abutting part are arranged along the third direction. The pushing part acts on the abutting part to drive the rod body to slide along the third direction. The limiting part is configured to move towards or away from the assembly position under the driving of the rod body.

[0007] The third limiting assembly is configured to position the workpiece in the third direction by the cooperation of the shaft sleeve and the rod body. It can be understood that the pushing member moves in the third direction towards the rotating limiting member, the pushing member acts on the abutting portion, the abutting portion drives the rod body to slide in the third direction, and the limiting portion moves in the third direction towards the assembly position until it abuts against the workpiece.

[0008] In some embodiments of the present application, the rod body is configured to rotate around its own axis when the pushing member drives the rod body to move in the third direction, so as to drive the limiting portion to rotate to the first set angle or the second set angle. When the limiting portion is at the first set angle, the projection of the limiting portion in the third direction is at least partially located within the projection of the workpiece. When the limiting portion is at the second set angle, the projection of the limiting portion in the third direction is located outside the projection of the workpiece.

[0009] By configuring the rod body to rotate around its own axis, it is helpful for the technician to store or take the workpiece, and reduces the risk of interference or obstruction of the limiting portion. It can be understood that when the technician takes or places the workpiece, the pushing member drives the rod body to move in the third direction away from the workpiece. At this time, the rod body rotates around its own axis and drives the limiting portion to rotate to the second set angle, and the limiting portion is located at the outer periphery of the workpiece.

[0010] In some embodiments of the present application, the shaft sleeve is provided with a guide hole, and the guide hole is spirally arranged along the outer peripheral wall of the shaft sleeve. The rod body is provided with a protruding portion, and the protruding portion is inserted into the guide hole.

[0011] When the pushing member drives the rod body to move in the third direction, the protruding portion slides along the spirally arranged guide hole to drive the rod body to rotate around its own axis, and then drive the limiting portion to rotate to the first set angle or the second set angle. By the cooperation of the protruding portion and the guide hole, it is helpful to ensure that the rod body rotates around its own axis while improving the compactness of the positioning mechanism and reducing production costs.

[0012] In some embodiments of the present application, the side surface of the abutting portion facing the pushing member is a spherical surface. Alternatively, the side surface of the pushing member facing the abutting portion is a spherical surface.

[0013] By providing a spherical surface, the sliding friction between the abutting portion and the pushing member can be converted into rolling friction. Compared with sliding friction, the friction of rolling friction is smaller, which is helpful for the rotation of the rod body and reduces the risk that the rod body cannot rotate due to excessive friction between the abutting portion and the pushing member.

[0014] In some embodiments of the present application, the positioning mechanism further comprises a driving assembly, and the driving assembly is installed on the support platform and connected with the first movable member and the second movable member respectively. The driving assembly is configured to drive the first movable member to move in the first direction and drive the second movable member to move in the second direction.

[0015] The driving assembly can drive the first movable member and the second movable member to move simultaneously, which is beneficial to reduce the use of the driving member and reduce the cost. Understandably, when the workpiece is placed in the assembly position, the driving assembly drives the first movable member to move towards the first fixed member along the first direction, and the first fixed member and the first movable member jointly abut against the workpiece along the first direction. At the same time, the driving assembly drives the second movable member to move towards the second fixed member along the second direction, and the second fixed member and the second movable member jointly abut against the workpiece along the second direction.

[0016] An embodiment of the present application provides an automatic film pasting device. The automatic film pasting device comprises a feeding mechanism, a film pasting mechanism, and at least one positioning mechanism as described in any of the above embodiments. The feeding mechanism is configured to transport a workpiece and transfer the workpiece to the positioning mechanism. The film pasting mechanism is configured to suck a film material and paste the film material to the workpiece.

[0017] The automatic film pasting device described above adopts the positioning mechanism described above. The positioning mechanism can realize the positioning of the workpiece in three directions through the cooperation of the first limiting assembly, the second limiting assembly, and the third limiting assembly, which is beneficial to reduce the risk of workpiece deviation when the film pasting mechanism pastes the film material to the workpiece, improve the film pasting precision of the automatic film pasting device, and improve the yield of products.

[0018] In some embodiments of the present application, the automatic film pasting device further comprises a workpiece conveying line, and a plurality of positioning mechanisms are installed on the workpiece conveying line. The workpiece conveying line has a feeding station and a film pasting station, and the feeding station and the film pasting station are arranged along the movement track of the workpiece conveying line. The workpiece conveying line is configured to drive the positioning mechanisms to move to the feeding station and the film pasting station respectively. When the positioning mechanism moves to the feeding station, the feeding mechanism can move to be opposite to the positioning mechanism along the third direction. When the positioning mechanism moves to the film pasting station, the film pasting mechanism can move to be opposite to the positioning mechanism along the third direction.

[0019] By arranging the workpiece conveying line, the degree of automation is improved, and the film pasting efficiency of the automatic film pasting device is improved. Understandably, when the automatic film pasting device works, the workpiece conveying line drives the positioning mechanism to move to the feeding station. At this time, the feeding mechanism moves to be opposite to the positioning mechanism along the third direction, and transfers the workpiece to the positioning mechanism. Then, when the workpiece conveying line drives the positioning mechanism to move to the film pasting station, the film pasting mechanism moves to be opposite to the positioning mechanism along the third direction, and pastes the film material to the workpiece.

[0020] In some embodiments of the present application, the automatic film pasting device further comprises a locking mechanism installed on the workpiece conveying line. The locking mechanism is configured to lock the positioning mechanism when the positioning mechanism moves to the film pasting station and / or the feeding station.

[0021] By setting the locking mechanism, it is beneficial to reduce the risk of shaking or displacement of the positioning mechanism, thereby facilitating the feeding of the feeding mechanism and the film pasting of the film pasting mechanism, and further improving the film pasting precision of the automatic film pasting device. Understandably, when the positioning mechanism moves to the film pasting station and / or the feeding station, the locking mechanism locks the workpiece conveying line.

[0022] In some embodiments of the present application, the automatic film pasting device further comprises an angle-adjustable CCD vision mechanism, the CCD vision mechanism is installed at the film pasting station, and the CCD vision mechanism is configured to obtain the deviation compensation between the film material and the assembly position in the workpiece.

[0023] By setting the CCD vision mechanism, it is beneficial to realize the correction between the film material and the workpiece, reduce the deviation of the film material and the workpiece assembly and pasting, and further improve the yield of the film pasting. At the same time, since the CCD vision mechanism is adjustable, it is beneficial to increase the flexibility of the CCD vision mechanism, which can be suitable for different products. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0025] Figure 2 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher; Figure 1 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0026] Figure 3 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0027] Figure 4 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher; Figure 1 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0028] Figure 5 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher; Figure 1 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0029] Figure 6 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher; Figure 1 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0030] Figure 7 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0031] Figure 8 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher; Figure 7 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher;

[0032] Figure 9 is a structural schematic view of the positioning mechanism provided in an embodiment of the present application without a pusher; Figure 7Another angle structure diagram of the positioning mechanism cooperating with the workpiece conveying line in the shown automatic film pasting device.

[0033] Main element symbol explanation:

[0034] 1, automatic film pasting device; 2, workpiece;

[0035] 100, positioning mechanism; 10, support platform; 11, assembly position; 20, first limiting component; 21, first fixed part; 22, first movable part; 30, second limiting mechanism; 31, second fixed part; 32, second movable part; 40, third limiting part; 41, rotating limiting part; 411, shaft sleeve; 4111, guide hole; 412, rod body; 4121, limiting part; 4122, abutting part; 4123, protruding part; 42, pushing part; 50, driving mechanism;

[0036] 200, feeding mechanism;

[0037] 300, film pasting mechanism;

[0038] 400, workpiece conveying line; 410, feeding station; 420, film pasting station;

[0039] 500, locking mechanism;

[0040] 600, CCD vision mechanism;

[0041] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein only for the purpose of describing the specific embodiments of the present application, and is not intended to limit the present application.

[0044] An embodiment of the present application provides a positioning mechanism. The positioning mechanism comprises a support platform, a first limiting assembly, a second limiting assembly and a third limiting assembly. The support platform is provided with an assembly position configured to carry a workpiece. The first limiting assembly comprises a first fixed part and a first movable part, both of which are mounted on the support platform, and the first fixed part and the first movable part are distributed on both sides of the assembly position along a first direction, and the first movable part is configured to be capable of moving towards or away from the first fixed part along the first direction. The second limiting assembly comprises a second fixed part and a second movable part, both of which are mounted on the support platform, and the second fixed part and the second movable part are distributed on both sides of the assembly position along a second direction, and the second movable part is configured to be capable of moving towards or away from the second fixed part along the second direction, and the second direction intersects the first direction. The third limiting assembly comprises a rotating limiting part and a pushing part, the rotating limiting part is mounted on the support platform and located on the side of the assembly position. The rotating limiting part is configured to move along a third direction under the action of the pushing part to fix the workpiece or release the fixation of the workpiece, and the third direction intersects the first direction and the second direction.

[0045] The positioning mechanism described above can realize the positioning of the workpiece in three directions through the cooperation of the first limiting assembly, the second limiting assembly and the third limiting assembly, which is beneficial to reduce the risk of workpiece deviation during film pasting and improve the precision and yield of film pasting.

[0046] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other. As shown in the drawings, Figure 1 In some embodiments, the first direction, the second direction and the third direction intersect each other. The first direction is parallel to the direction indicated by X in the drawings, the second direction is parallel to the direction indicated by Y in the drawings, and the third direction is parallel to the direction indicated by Z in the drawings.

[0047] For the convenience of the drawings, hereinafter, the first direction is represented by "first direction X", the second direction is represented by "second direction Y", and the third direction is represented by "third direction Z". Alternatively, in some embodiments, the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0048] An embodiment of the present application provides a positioning mechanism 100. The positioning mechanism 100 is used for positioning a workpiece 2, such as a mobile phone frame, a watch dial and the like which need to be pasted with a film, and the present application does not limit this, and those skilled in the art can select according to the actual situation.

[0049] As shown in the drawings, Figures 1 to 3As shown, the positioning mechanism 100 comprises a support platform 10, a first limiting assembly 20, a second limiting assembly 30, and a third limiting assembly 40. The support platform 10 is provided with an assembly site 11 configured to carry the workpiece 2.

[0050] By providing the assembly site 11, the workpiece 2 can be preliminarily positioned, and the subsequent positioning and clamping operations of the first limiting assembly 20, the second limiting assembly 30, and the third limiting assembly 40 can be facilitated.

[0051] In some embodiments, the first limiting assembly 20 comprises a first fixed member 21 and a first movable member 22. The first fixed member 21 and the first movable member 22 are both mounted on the support platform 10, and the first fixed member 21 and the first movable member 22 are distributed on both sides of the assembly site 11 along a first direction X. The first movable member 22 is configured to be able to move towards or away from the first fixed member 21 along the first direction X.

[0052] Understandably, when the workpiece 2 is placed on the assembly site 11, the first movable member 22 moves towards the first fixed member 21 along the first direction X, and the first fixed member 21 and the first movable member 22 jointly abut the workpiece 2 along the first direction X, thereby achieving positioning of the workpiece 2 along the first direction X.

[0053] In some embodiments, the second limiting assembly 30 comprises a second fixed member 31 and a second movable member 32. The second fixed member 31 and the second movable member 32 are both mounted on the support platform 10, and the second fixed member 31 and the second movable member 32 are distributed on both sides of the assembly site 11 along a second direction Y. The second movable member 32 is configured to be able to move towards or away from the second fixed member 31 along the second direction Y.

[0054] Understandably, when the workpiece 2 is placed on the assembly site 11, the second movable member 32 moves towards the second fixed member 31 along the second direction Y, and the second fixed member 31 and the second movable member 32 jointly abut the workpiece 2 along the second direction Y, thereby achieving positioning of the workpiece 2 along the second direction Y.

[0055] In some embodiments, as shown, Figures 1 to 3 The third limiting assembly 40 comprises a rotating limiting member 41 and a pushing member 42. The rotating limiting member 41 is mounted on the support platform 10 and located on the side of the assembly site 11. The rotating limiting member 41 is configured to move along a third direction Z under the action of the pushing member 42 to fix the workpiece 2 or release the fixation of the workpiece 2.

[0056] Understandably, when the workpiece 2 is placed on the assembly site 11, the pushing member 42 moves towards the assembly site 11 along the third direction Z and drives the rotating limiting member 41 to move towards the assembly site 11 along the third direction Z. The rotating limiting member 41 abuts the workpiece 2 along the third direction Z, thereby achieving positioning of the workpiece 2 along the third direction Z.

[0057] Compared with the existing way of positioning the workpiece 2, the positioning mechanism 100 in the application can position the workpiece 2 in the first direction X, the second direction Y and the third direction Z through the cooperation of the first limiting assembly 20, the second limiting assembly 30 and the third limiting assembly 40, that is, realize the positioning of the workpiece 2 in three directions, which is beneficial to reduce the risk of workpiece 2 deviation during film pasting and improve the precision and yield of film pasting.

[0058] It is worth noting that the above-mentioned action flow of the first limiting assembly 20, the second limiting assembly 30 and the third limiting assembly 40 is not in order, and the application does not limit this. The person skilled in the art can choose according to the actual situation.

[0059] In some embodiments, the positioning mechanism 100 can first abut the workpiece 2 along the first direction X through the first limiting assembly 20, then abut the workpiece 2 along the second direction Y through the second limiting assembly 30, and finally abut the workpiece 2 along the third direction Z through the third limiting assembly 40.

[0060] In some embodiments, the positioning mechanism 100 can first abut the workpiece 2 along the third direction Z through the third limiting assembly 40, then abut the workpiece 2 along the first direction X through the first limiting assembly 20, and finally abut the workpiece 2 along the second direction Y through the second limiting assembly 30.

[0061] In some embodiments, the positioning mechanism 100 can abut the workpiece 2 along the first direction X and the second direction Y through the first limiting assembly 20 and the second limiting assembly 30 at the same time, and then abut the workpiece 2 along the third direction Z through the third limiting assembly 40.

[0062] In some embodiments, as shown in Figure 3 and Figure 4 The rotating limiting piece 41 includes a shaft sleeve 411 and a rod body 412. The shaft sleeve 411 is installed on the support platform 10, and the rod body 412 is slidingly inserted into the shaft sleeve 411 along the third direction Z. The rod body 412 is provided with a limiting portion 4121 and an abutting portion 4122, which are arranged along the third direction Z.

[0063] The pushing piece 42 acts on the abutting portion 4122 to drive the rod body 412 to slide along the third direction Z. The limiting portion 4121 is configured to approach or move away from the assembly position 11 under the driving of the rod body 412. Through the cooperation of the shaft sleeve 411 and the rod body 412, the third limiting assembly 40 can realize the positioning of the workpiece 2 in the third direction Z.

[0064] As can be understood, when the workpiece 2 is placed in the assembly position 11, the pushing member 42 moves along the third direction Z towards the assembly position 11, and the pushing member 42 acts on the abutting portion 4122 and drives the abutting portion 4122 to move along the third direction Z towards the assembly position 11. The abutting portion 4122 drives the rod body 412 to slide along the third direction Z relative to the shaft sleeve 411. The rod body 412 drives the limiting portion 4121 to move along the third direction Z towards the assembly position 11 until the limiting portion 4121 abuts against the workpiece 2, so as to realize positioning of the workpiece 2 along the third direction Z.

[0065] In some embodiments, the rotation limiting member 41 further comprises an elastic member (not shown in the figure), and the elastic member is sleeved with the rod body 412. One end of the elastic member is connected with the rod body 412, and the other end of the elastic member is connected with the shaft sleeve 411. The rod body 412 is automatically restored to the initial position (specifically, the position where the abutting portion 4122 does not abut against the workpiece 2) by the elastic force of the elastic member, which is beneficial to improve the automation degree of the positioning mechanism 100.

[0066] In some embodiments, as shown in FIG. 4, the rod body 412 is configured to rotate around the axis thereof when the pushing member 42 drives the rod body 412 to move along the third direction Z, so as to drive the limiting portion 4121 to rotate to the first set angle or the second set angle. Figures 4 to 6 When the limiting portion 4121 is at the first set angle, the projection of the limiting portion 4121 along the third direction Z is at least partially located within the projection of the workpiece 2. When the limiting portion 4121 is at the second set angle, the projection of the limiting portion 4121 along the third direction Z is located outside the projection of the workpiece 2.

[0067] As can be understood, when the workpiece 2 is placed in the assembly position 11, the pushing member 42 drives the rod body 412 to move along the third direction Z towards the workpiece 2, the rod body 412 rotates clockwise around the axis thereof, and the limiting portion 4121 rotates to the first set angle. At this time, the projection of the limiting portion 4121 along the third direction Z is at least partially located within the projection of the workpiece 2, so as to stop the workpiece 2 along the third direction Z.

[0068] When the technician needs to take or place the workpiece 2, the pushing member 42 drives the rod body 412 to move along the third direction Z away from the workpiece 2, the rod body 412 rotates counterclockwise around the axis thereof, and the limiting portion 4121 rotates to the second set angle. At this time, the projection of the limiting portion 4121 along the third direction Z is located outside the projection of the workpiece 2.

[0069] By configuring the rod body 412 to be rotatable around the axis thereof, it is helpful for the technician to store or take the workpiece 2, and reduces the risk of interference or obstruction of the limiting portion 4121.

[0070] In some embodiments, as shown in FIG. 4, the rod body 412 is configured to rotate around the axis thereof when the pushing member 42 drives the rod body 412 to move along the third direction Z, so as to drive the limiting portion 4121 to rotate to the first set angle or the second set angle. Figure 4As shown, the shaft sleeve 411 is provided with a guide hole 4111, and the guide hole 4111 is spirally arranged along the outer peripheral wall of the shaft sleeve 411. The rod body 412 is provided with a protruding portion 4123, and the protruding portion 4123 is inserted into the guide hole 4111. When the pusher 42 drives the rod body 412 to move along the third direction Z, the protruding portion 4123 slides along the spirally arranged guide hole 4111 to drive the rod body 412 to rotate around the axis thereof, and in turn drives the limiting portion 4121 to rotate to the first set angle or the second set angle.

[0071] Through the cooperation of the protruding portion 4123 and the guide hole 4111, it is beneficial to ensure that the rod body 412 rotates around the axis thereof while improving the compactness of the positioning mechanism 100 and reducing the production cost.

[0072] In other embodiments, the rotation of the rod body 412 can also be driven by a rotary motor, which is not limited in the present application, and persons skilled in the art can select according to the actual situation.

[0073] In some embodiments, as shown in Figure 4 The side of the abutting portion 4122 facing the pusher 42 is a spherical surface.

[0074] In some embodiments, the side of the pusher 42 facing the abutting portion 4122 is a spherical surface.

[0075] Through the arrangement of the spherical surface, the sliding friction between the abutting portion 4122 and the pusher 42 can be converted into rolling friction. Compared with sliding friction, the rolling friction has smaller friction, which is beneficial to the rotation of the rod body 412 and reduces the risk that the rod body 412 cannot rotate due to excessive friction between the abutting portion 4122 and the pusher 42.

[0076] In other embodiments, a rolling element such as a ball, a steel ball, etc. can also be arranged between the abutting portion 4122 and the pusher 42, which is not limited in the present application, and persons skilled in the art can select according to the actual situation.

[0077] In some embodiments, as shown in Figure 2 and Figure 3 The positioning mechanism 100 further includes a driving assembly 50, which is installed on the support platform 10 and connected with the first movable element 22 and the second movable element 32 respectively. The driving assembly 50 is configured to drive the first movable element 22 to move along the first direction X and drive the second movable element 32 to move along the second direction Y, which is beneficial to reduce the use of driving elements and reduce the cost.

[0078] It can be understood that when the workpiece 2 is placed in the assembly position 11, the driving assembly 50 drives the first movable piece 22 to move towards the first fixed piece 21 along the first direction X, and the first fixed piece 21 and the first movable piece 22 jointly abut against the workpiece 2 along the first direction X. At the same time, the driving assembly 50 drives the second movable piece 32 to move towards the second fixed piece 31 along the second direction Y, and the second fixed piece 31 and the second movable piece 32 jointly abut against the workpiece 2 along the second direction Y.

[0079] In other embodiments, a plurality of driving assemblies 50 can also be used, and the first movable piece 22 and the second movable piece 32 are individually connected with the corresponding driving assembly 50, and each driving assembly 50 is independently controlled. The present application does not limit this, and those skilled in the art can select according to the actual situation.

[0080] An embodiment of the present application provides an automatic film pasting device 1. As shown in Figure 7 , the automatic film pasting device 1 comprises a feeding mechanism 200, a film pasting mechanism 300, and at least one positioning mechanism 100 described above. The feeding mechanism 200 is configured to convey the workpiece 2 and transfer the workpiece 2 to the positioning mechanism 100. The film pasting mechanism 300 is configured to suck the film material (not shown in the figure) and paste the film material to the workpiece 2.

[0081] It can be understood that the automatic film pasting device 1 first conveys the workpiece 2 through the feeding mechanism 200 and transfers the workpiece 2 to the positioning mechanism 100. The positioning mechanism 100 realizes the positioning of the workpiece 2 in three directions through the cooperation of the first limiting assembly 20, the second limiting assembly 30 and the third limiting assembly 40. Finally, the film pasting mechanism 300 sucks the film material and pastes the film material to the workpiece 2, so as to realize the film pasting of the workpiece 2.

[0082] It should be noted that by using the above positioning mechanism 100, the positioning of the workpiece 2 in three directions can be realized, which is beneficial to reducing the risk of deviation of the workpiece 2 when the film pasting mechanism 300 pastes the film material to the workpiece 2, improving the film pasting precision of the automatic film pasting device 1 and the yield of products.

[0083] In some embodiments, as shown in Figures 7 to 9 , the automatic film pasting device 1 further comprises a workpiece conveying line 400, and a plurality of positioning mechanisms 100 are installed on the workpiece conveying line 400. The workpiece conveying line 400 has a feeding station 410 and a film pasting station 420, and the feeding station 410 and the film pasting station 420 are arranged along the movement track of the workpiece conveying line 400. The workpiece conveying line 400 is configured to drive the positioning mechanism 100 to move to the feeding station 410 and the film pasting station 420 respectively.

[0084] When the positioning mechanism 100 moves to the loading station 410, the loading mechanism 200 can move to be opposite to the positioning mechanism 100 along the third direction Z. When the positioning mechanism 100 moves to the film pasting station 420, the film pasting mechanism 300 can move to be opposite to the positioning mechanism 100 along the third direction Z.

[0085] It can be understood that when the automatic film pasting device 1 works, the workpiece conveying line 400 drives the positioning mechanism 100 to move to the loading station 410. At this time, the loading mechanism 200 moves to be opposite to the positioning mechanism 100 along the third direction Z, and transfers the workpiece 2 to the positioning mechanism 100.

[0086] Subsequently, when the workpiece conveying line 400 drives the positioning mechanism 100 to move to the film pasting station 420, the film pasting mechanism 300 moves to be opposite to the positioning mechanism 100 along the third direction Z, and pastes the film material to the workpiece 2. By arranging the workpiece conveying line 400, the automation degree of the automatic film pasting device 1 is improved, and the film pasting efficiency of the automatic film pasting device 1 is improved.

[0087] In some embodiments, as shown in Figure 8 and Figure 9 the workpiece conveying line 400 is annular, the loading station 410 and the film pasting station 420 are located at two ends of the annular workpiece conveying line 400, and a plurality of positioning mechanisms 100 are arranged at intervals along the annular workpiece conveying line 400, which is beneficial to improve the working efficiency of the automatic film pasting device 1.

[0088] For example, the number of positioning mechanisms 100 is two, which are defined as a first positioning mechanism (not shown in the figure) and a second positioning mechanism (not shown in the figure). The first positioning mechanism is located at the loading station 410, and the second positioning mechanism is located at the film pasting station 420.

[0089] When the automatic film pasting device 1 works, the loading mechanism 200 first loads the workpiece 2 to the first positioning mechanism. Subsequently, the workpiece conveying line 400 drives the first positioning mechanism to move to the film pasting station 420, and the second positioning mechanism moves to the loading station 410. At this time, the film pasting mechanism 300 pastes the film material to the workpiece 2 in the first positioning mechanism, and the loading mechanism loads the new workpiece 2 to the second positioning mechanism 100.

[0090] Then, the workpiece conveying line 400 drives the first positioning mechanism to move to the loading station 410, and the second positioning mechanism moves to the film pasting station 420. At this time, the film pasting mechanism 300 pastes the film material to the workpiece 2 in the second positioning mechanism, and the loading mechanism 200 loads the new workpiece 2 to the first positioning mechanism, thereby repeating the cycle.

[0091] It is worth noting that after the film material is pasted to the workpiece 2, the pasted workpiece 2 is transferred to other processes, and does not affect the next loading of the workpiece 2 by the positioning mechanism 100.

[0092] In some embodiments, as shown in Figure 9 The automatic film pasting device 1 further comprises a locking mechanism 500 installed on the workpiece conveying line 400. The locking mechanism 500 is configured to lock the positioning mechanism 100 when the positioning mechanism 100 moves to the film pasting station 420 and / or the feeding station 410.

[0093] With the locking mechanism 500, the risk of the positioning mechanism 100 shaking or moving is reduced, which facilitates the feeding of the feeding mechanism 200 and the film pasting of the film pasting mechanism 300, and further improves the film pasting accuracy of the automatic film pasting device 1.

[0094] In some embodiments, a clamping groove (not shown in the figure) is arranged in the positioning mechanism 100, and the locking mechanism 500 comprises a clamping piece (not shown in the figure) rotatably installed on the workpiece 2 conveying line. When the positioning mechanism 100 moves to the film pasting station 420 and / or the feeding station 410, the clamping piece rotates towards the direction close to the clamping groove and extends into the clamping groove to lock the positioning mechanism 100. When it is necessary to release the locking, the clamping piece is only needed to be rotated reversely and moved out of the clamping groove.

[0095] In some embodiments, as shown in Figure 7 The film pasting device further comprises an angle-adjustable CCD vision mechanism 600 installed on the film pasting station 420. The CCD vision mechanism 600 is configured to obtain the deviation compensation between the film material and the assembly position in the workpiece.

[0096] With the CCD vision mechanism 600, the correction between the film material and the workpiece 2 is facilitated, the deviation of the film material and the workpiece 2 is reduced, and the yield of the film pasting is further improved. At the same time, since the CCD vision mechanism 600 is adjustable, the flexibility of the CCD vision mechanism 600 is increased, which can be suitable for different products.

[0097] For example, when the workpiece conveying line 400 drives the positioning mechanism 100 to move to the film pasting station 420, the CCD vision mechanism 600 photographs the workpiece 2 and obtains a first image. When the film pasting mechanism 300 sucks the film material and moves to the opposite direction of the positioning mechanism 100 along the third direction Z, the CCD vision mechanism 600 photographs the film material and obtains a second image. Subsequently, the CCD vision mechanism 600 automatically calculates the deviation compensation by combining the film pasting position in the first image and the position of the film material in the second image, and the film pasting mechanism 300 adjusts the position of the film material according to the deviation compensation.

[0098] It is worth noting that the automatic calculation of the correction compensation can be in the form of defining a coordinate system to calculate the coordinate difference between the first image and the second image, or in the form of overlapping the first image and the second image to calculate the offset area difference, and the present application does not limit this, and those skilled in the art can select according to the actual situation.

[0099] The working process of the automatic film pasting device 1 in the present application is as follows: the feeding mechanism 200 loads the workpiece 2 to the positioning mechanism 100. The first limiting assembly 20 abuts against the workpiece 2 along the first direction X, the second limiting assembly 30 abuts against the workpiece 2 along the second direction Y, and the third limiting assembly 40 abuts against the workpiece 2 along the third direction Z. The workpiece conveying line 400 drives the positioning mechanism 100 to move to the film pasting station 420. The CCD vision mechanism 600 automatically calculates the correction compensation, and the film pasting mechanism 300 adjusts the position of the film material according to the correction compensation. The film pasting mechanism 300 pastes the film material to the workpiece 2 in the positioning mechanism 100.

[0100] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation on the present application, and as long as the above embodiments are within the spirit and scope of the present application, any appropriate changes and changes to the above embodiments fall within the disclosure range of the present application.

Claims

1. A positioning mechanism, characterized by, The application relates to a positioning mechanism for a workpiece. The positioning mechanism comprises a support platform provided with an assembly position configured to carry the workpiece; a first limiting assembly comprising a first fixed part and a first movable part, both of which are mounted on the support platform and are distributed on both sides of the assembly position along a first direction, and the first movable part is configured to move towards or away from the first fixed part along the first direction; a second limiting assembly comprising a second fixed part and a second movable part, both of which are mounted on the support platform and are distributed on both sides of the assembly position along a second direction, and the second movable part is configured to move towards or away from the second fixed part along the second direction, wherein the second direction intersects the first direction; and a third limiting assembly comprising a rotating limiting part and a pushing part, wherein the rotating limiting part is mounted on the support platform and is located on the periphery of the assembly position, and the rotating limiting part is configured to move along a third direction under the action of the pushing part to fix the workpiece or release the fixation of the workpiece, and the third direction intersects the first direction and the second direction. The rotating limiting part comprises a shaft sleeve and a rod body, the shaft sleeve is mounted on the support platform, the rod body is slidingly inserted into the shaft sleeve along the third direction, the rod body is provided with a limiting part and an abutting part, and the limiting part and the abutting part are arranged along the third direction. The pushing part acts on the abutting part to drive the rod body to slide along the third direction, and the limiting part is configured to move towards or away from the assembly position under the driving of the rod body. The rod body is configured to rotate around its own axis when the rod body is driven by the pushing part to move along the third direction, so as to drive the limiting part to rotate to a first set angle or a second set angle.

2. The positioning mechanism according to claim 1, characterized in that When the limiting part is at the first set angle, the projection of the limiting part along the third direction is at least partially located in the projection of the workpiece, and when the limiting part is at the second set angle, the projection of the limiting part along the third direction is located outside the projection of the workpiece. The shaft sleeve is provided with a guide hole, the guide hole is spirally arranged along the outer wall of the shaft sleeve, the rod body is provided with a protruding part, and the protruding part is inserted into the guide hole.

3. The positioning mechanism according to claim 2, characterized in that The side surface of the abutting part facing the pushing part is a spherical surface, or the side surface of the pushing part facing the abutting part is a spherical surface. The positioning mechanism further comprises a driving assembly mounted on the support platform and connected with the first movable part and the second movable part respectively, and the driving assembly is configured to drive the first movable part to move along the first direction and drive the second movable part to move along the second direction.

4. The positioning mechanism according to claim 3, characterized in that The positioning mechanism comprises a feeding mechanism, a film pasting mechanism and at least one positioning mechanism as claimed in any one of claims 1 to 6, the feeding mechanism is configured to convey the workpiece and transfer the workpiece to the positioning mechanism, and the film pasting mechanism is configured to suck the film material and paste the film material to the workpiece.

5. The positioning mechanism of claim 3, wherein ​ 6. The positioning mechanism according to any one of claims 1 to 5, characterized in that ​ 7. An automatic film attaching apparatus characterized by comprising: ​ 8. The automatic film pasting device according to claim 7, wherein The automatic film pasting device further comprises a workpiece conveying line, a plurality of the positioning mechanisms are installed on the workpiece conveying line, the workpiece conveying line has a feeding station and a film pasting station, the feeding station and the film pasting station are arranged along the movement track of the workpiece conveying line; The workpiece conveying line is configured to drive the positioning mechanisms to move to the feeding station and the film pasting station respectively; When the positioning mechanism moves to the feeding station, the feeding mechanism can move to be opposite to the positioning mechanism along the third direction; when the positioning mechanism moves to the film pasting station, the film pasting mechanism can move to be opposite to the positioning mechanism along the third direction. 9.The automatic film pasting device according to claim 8, characterized in that, The automatic film pasting device further comprises a locking mechanism, the locking mechanism is installed on the workpiece conveying line, the locking mechanism is configured to lock the positioning mechanism when the positioning mechanism moves to the film pasting station and / or the feeding station. 10.The automatic film pasting device according to claim 8, characterized in that, The automatic film pasting device further comprises an angle-adjustable CCD vision mechanism, the CCD vision mechanism is installed on the film pasting station, the CCD vision mechanism is configured to obtain the deviation compensation between the film material and the assembly position in the workpiece.

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