Positioning device and film pasting device

Abstract

The invention provides a positioning device and a film pasting device. The positioning device comprises a base, a supporting piece, two first positioning pieces, a first locking piece, a second positioning piece, a second locking piece and a third positioning piece. The supporting piece is assembled on the base in a replaceable mode. The two first positioning pieces are arranged on the base in a sliding mode in the first direction. The first locking piece is configured to lock the two first positioning pieces on the base. The second positioning piece is arranged on the base in a sliding mode in the second direction, and the second direction intersects with the first direction. The second locking piece is configured to lock the second positioning piece on the base. The third positioning piece is arranged on the base and configured to abut against the two opposite sides of the workpiece with the second positioning piece. In the positioning device, the supporting piece adapts to support workpieces of different structures, the two first positioning pieces adapt to size changes of the different workpieces in the first direction, the second positioning piece and the third positioning piece adapt to size changes of the different workpieces in the second direction, and therefore the universality of the positioning device for positioning the workpieces is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of film pasting technology, and in particular to a positioning device and a film pasting device. Background Art

[0002] Currently, users are highly aware of screen protection for products like mobile phones and tablets, and their demand for protective films is high, resulting in a high frequency of protective film application at service outlets. However, differences between products, such as variations in width, thickness, and length, or in the position of protruding features like cameras, battery covers, and buttons, result in poor versatility in protective film application jigs. Custom jigs must be manufactured for each product, leading to high costs and poor positioning accuracy, resulting in a high rate of protective film scrapping. Summary of the Invention

[0003] In view of this, the present application provides a positioning device and a film applying device with improved versatility.

[0004] In a first aspect, the present application provides a positioning device for positioning a workpiece to be attached with a film sheet, the positioning device comprising a base, a support, two first positioning members, a first locking member, a second positioning member, a second locking member and a third positioning member. The support member is replaceably assembled to the base. The two first positioning members are slidably arranged on the base along a first direction to abut against opposite sides of the workpiece. The first locking member is configured to lock the two first positioning members on the base. The second positioning member is slidably arranged on the base along a second direction, and the second direction intersects with the first direction. The second locking member is configured to lock the second positioning member on the base. The third positioning member is arranged on the base and is configured to abut against opposite sides of the workpiece with the second positioning member.

[0005] In the positioning device described above, the support members are replaceably assembled to the base to accommodate workpieces of varying structures. The two first positioning members slide to either side of the workpiece and are locked to the base by a first locking member when the two first positioning members abut against the workpiece. The second positioning member slides to the side of the workpiece facing away from the third positioning member, and are locked to the workpiece by a second locking member when the second and third positioning members abut against the workpiece, respectively. The two first positioning members accommodate dimensional variations of different workpieces along the first direction, while the second and third positioning members accommodate dimensional variations of different workpieces along the second direction, thereby enhancing the versatility of the positioning device in locating workpieces.

[0006] In one possible embodiment, the support member includes a plurality of support columns, each of which is detachably attached to the base to adjust the position of the support column on the base. Each support column is provided with a support surface on a side facing away from the base, and the support surfaces of the plurality of support columns are configured to support the workpiece.

[0007] In the above embodiment, the positions of multiple support columns on the base are variable, which is beneficial for multiple support columns to adapt to different workpieces. There is no need to manufacture support structures adapted to different workpieces, which is beneficial for saving costs and improving the versatility of the positioning device.

[0008] In one possible embodiment, the base is made of a material capable of being attracted by a magnet, and each support column is provided with a first magnetic portion. Alternatively, the base is provided with a second magnetic portion. Each support column is made of a material capable of being attracted by a magnet, and the position of the second magnetic portion is adjustable.

[0009] In the above embodiment, the support member and the base are fixed by magnetic attraction, which is convenient for assembly and disassembly, and further helps to simplify the installation process.

[0010] In a possible embodiment, there are multiple support members, each of which is provided with at least one avoidance hole to form multiple support members with different structures, and each support member can be selectively assembled on the base.

[0011] In the above embodiment, the support member is detachably connected to the base, and a plurality of support members with different structures are provided. Each support member is adapted to one or more workpieces with different structures, thereby improving the versatility of the positioning device.

[0012] In a possible embodiment, the base is provided with a positioning portion, and each support member is provided with a positioning hole, and the positioning hole cooperates with the positioning portion to position the support member and the base relative to each other along the second direction and the first direction.

[0013] In the above embodiment, the positioning portion and the positioning hole cooperate to improve the consistency of the positioning of multiple support members and the base, so as to improve the positioning accuracy of the support members and the base, and facilitate the improvement of the relative position accuracy of the avoidance hole and the avoidance position of the workpiece when the positioning device clamps the workpiece.

[0014] In one possible embodiment, the third positioning member is slidably disposed on the base along a third direction. The third direction is perpendicular to the second and first directions. The third positioning member includes a bearing surface configured to support the diaphragm along the third direction. The positioning device further includes a third locking member, by which the third positioning member is locked to the base.

[0015] In the above embodiment, the third positioning member slides along the third direction, which is conducive to adjusting the bearing surface and the surface of the workpiece to be film-laminated away from the support member to be flush, so as to reduce the step difference between the workpiece and the bearing surface, thereby helping to reduce the risk of bending of the film when placed on the bearing surface and the workpiece, and further helping to improve the accuracy of film lamination.

[0016] In a possible embodiment, the positioning device further includes a film pressing member, which is rotatably disposed on the third positioning member and can be rotated to press the film on the bearing surface.

[0017] In the above-described embodiment, the film pressing member rotates toward the support surface to press against opposite sides of the film sheet, securing the ends of the film sheet. This facilitates stability during the process of pressurized adhesion of the film sheet to the workpiece, thereby improving the accuracy of the adhesion between the film sheet and the workpiece. When the film pressing member rotates away from the support surface, the film sheet is released from pressure, and the remaining film material after bonding can be removed.

[0018] In a possible implementation, the bearing surface is provided with a positioning pin, and the positioning pin is configured to pass through a hole in the diaphragm to position the diaphragm along the first direction and the second direction.

[0019] In the above embodiment, one end of the diaphragm is first positioned in the first and second directions through the cooperation of the hole and the positioning pin, and then is pressed and fixed by the film pressing member to achieve positioning in the third direction, thereby improving the relative positioning accuracy of the diaphragm and the workpiece, which is conducive to improving the accuracy of film pasting.

[0020] In a possible embodiment, the positioning device also includes a correction member, which is rotatably provided on the film pressing member and is configured to be able to rotate to fit with the supporting surface, and to be able to protrude to the side of the third positioning member toward the second positioning member to correct the step difference between the surface to be film-coated and the supporting surface of the workpiece.

[0021] In the above embodiment, the workpiece is carried on the support member, and the side of the workpiece facing away from the support member is the side to be film-applied. The correction member can be fitted with the carrying surface and protrude to the side of the third positioning member facing the second positioning member. The correction member follows the third positioning member to move along the third direction, so that the part of the correction member protruding outside the third positioning member can be fitted with the part of the workpiece to be film-applied, and the third locking member is locked. The position of the third positioning member along the third direction is adjusted to reduce the step difference between the carrying surface and the part of the workpiece to be film-applied.

[0022] In one possible embodiment, the correction member is slidably disposed on the film pressing member along the second direction, and the correction member is configured to fit with the supporting surface and can protrude to the side of the third positioning member toward the second positioning member to correct the step difference between the surface to be film-coated and the supporting surface of the workpiece.

[0023] In the above embodiment, the workpiece is supported on the support member, with the side of the workpiece facing away from the support member being the side to be film-applied. The calibration member is capable of contacting the support surface and protruding to the side of the third positioning member facing the second positioning member. The calibration member moves in the third direction following the third positioning member, enabling the portion of the calibration member protruding outside the third positioning member to contact the area of ​​the workpiece to be film-applied. The third locking member is then locked, completing the adjustment of the third positioning member's position in the third direction, thereby reducing the step difference between the support surface and the area of ​​the workpiece to be film-applied.

[0024] In one possible embodiment, the film pressing member rotates between a first position and a second position, pressing the diaphragm in the first position and releasing the diaphragm in the second position. The correction member moves between a third position and a fourth position, engaging the support surface in the third position and releasing the support surface in the fourth position. When the film pressing member is in the first position and / or the second position, it is magnetically positioned relative to the third positioning member. And / or when the correction member is in the third position, it is magnetically positioned relative to the support surface. And / or when the correction member is in the fourth position, it is magnetically positioned relative to the film pressing member.

[0025] In the above-mentioned embodiment, when the film pressing member is in the first position, it presses the diaphragm and is positioned relative to the bearing surface by magnetic attraction, which is conducive to stabilizing the pressing of the diaphragm and improving the reliability of the film being attached to the workpiece. When the film pressing member is in the second position, it is detached from the diaphragm and is positioned relative to the top surface of the third positioning member by magnetic attraction, which is conducive to the position stability of the film pressing member when not in use. When the correction member is in the third position, it is in contact with the bearing surface and is positioned relative to the bearing surface by magnetic attraction, which is conducive to reducing the possibility that the correction member is moved or tilted by external force, resulting in inaccurate step difference between the correction bearing surface and the surface of the workpiece to be attached to the film. When the correction member is in the fourth position, it is detached from the bearing surface and is positioned relative to the film pressing member by magnetic attraction, which is conducive to improving the position stability of the correction member when not in use and reducing the possibility that the correction member protrudes out of the bearing surface and affects the film attachment when the film is attached to the workpiece.

[0026] In one possible embodiment, the third locking member is threadedly connected to the third positioning member and is configured to move relative to the third positioning member in a direction intersecting the third direction until it abuts the base when it rotates. Alternatively, the third locking member is threadedly connected to the base and is configured to move relative to the base in a direction intersecting the third direction until it abuts the third positioning member when it rotates.

[0027] In the above embodiment, the third locking member is connected to the third positioning member and abuts the base. The friction between the third locking member and the base allows the third positioning member to be positioned relative to the base. Alternatively, the third locking member is connected to the base and abuts the third positioning member. The friction between the third locking member and the third positioning member allows the third positioning member to be positioned relative to the base. This allows the third positioning member to be locked to the base after adjustment along the third direction, thereby stably positioning the workpiece and the diaphragm, thereby improving the accuracy of film application.

[0028] In a possible implementation, the third locking member is rotatably connected to the base and is threadedly connected to the third positioning member along the third direction. The third locking member is configured to drive the third positioning member to move along the third direction and maintain a position when rotating.

[0029] In the above embodiment, the third locking member rotates and is threadedly driven to drive the third positioning member to move along the third direction and be locked in a position, which is easy to install and operate.

[0030] In one possible embodiment, the third locking member includes a first supporting member and a second supporting member, each of which is rotatably connected to the base. The first supporting member abuts one end of the second supporting member, and rotation of the first supporting member drives the second supporting member to rotate until the other end of the second supporting member abuts the third positioning member.

[0031] In the above embodiment, the friction between the second abutting member and the third positioning member allows the base connected to the second supporting member to be positioned relative to the third positioning member. This allows the third positioning member to be locked to the base after adjustment along the third direction, thereby stably positioning the workpiece and the film, thereby improving film application accuracy.

[0032] In one possible embodiment, the first supporting member is a cam structure, and the rotation axes of the first supporting member and the second supporting member are parallel. Alternatively, the first supporting member is threadedly connected to the base, and the rotation axes of the first supporting member and the second supporting member are perpendicular.

[0033] In the above embodiment, the first supporting member is a cam structure, or is threadedly connected to the base, so that the first supporting member drives the second supporting member to rotate and abut the third positioning member, thereby achieving relative positioning between the third positioning member and the base.

[0034] In a possible implementation, the positioning device further includes a first elastic member, which is held between the third positioning member and the base and configured to exert an elastic force on the third positioning member to move away from the base along the third direction.

[0035] In the above embodiment, the first elastic member elastically supports the third positioning member, and the third positioning member can be adjusted along the third direction by simply pressing down without pulling up the third positioning member, making the adjustment labor-saving and easy to operate.

[0036] In one possible embodiment, the first locking member includes a screw, a nut, and two connecting rods. The screw is rotatably mounted on the base, and the nut is threadedly connected to the screw and moves in a first direction as the screw rotates. The two connecting rods are symmetrically and rotationally connected to opposite sides of the nut, and each connecting rod has an end distal to the nut that is rotatably connected to a first positioning member.

[0037] In the above embodiment, the rotation of the connecting rod drives the movement of the nut, and the nut drives the two connecting rods to move symmetrically, thereby causing the two first positioning members to move symmetrically, which is beneficial for the two first positioning members to clamp the workpiece in the first direction to improve the positioning accuracy of the workpiece, thereby improving the fitting accuracy between the diaphragm and the workpiece. In addition, the cooperation between the screw and the nut simultaneously drives the two first positioning members to move to a position and lock them in that position.

[0038] In a possible embodiment, the positioning device further includes a guide assembly, the guide assembly includes a guide rail and a plurality of sliders, the plurality of sliders are slidably disposed on the guide rail, and the second positioning member and the nut are respectively connected to different sliders.

[0039] In the above embodiment, the second positioning member and the nut are respectively connected to different sliders to provide support and guidance for the second positioning member and the nut to move along the first direction. The second positioning member and the nut share a common guide assembly when moving along the first direction, which simplifies the structure and helps reduce costs.

[0040] In a possible embodiment, the first locking member includes two resisting members disposed on both sides of the supporting member, each resisting member is threadedly connected to the base and pushes a first positioning member along the second direction.

[0041] In the above embodiment, the supporting member is rotated to be threaded relative to the base and then moved toward the first positioning member, so that the two supporting members respectively support the outside of the two first positioning members, thereby locking the two first positioning members to the base.

[0042] In one possible embodiment, the second locking member includes a locking member, a sliding shaft, and a second elastic member. The sliding shaft is provided with a first stop portion, the second positioning member is provided with a through sliding hole, the inner wall of the sliding hole extends inward to form a second stop portion, and the sliding shaft is slidably disposed in the sliding hole. The second elastic member is disposed in the sliding hole, and its two ends are abutted between the first stop portion and the second stop portion. The locking member is rotationally connected to the sliding shaft and is stopped by the second positioning member on one side of the second stop portion. The first stop portion is configured to abut against the base in a direction intersecting with the sliding direction of the sliding shaft under the elastic force of the second elastic member when the locking member is rotated to the locking position. And the first stop portion is configured to move with the sliding shaft and separate from the base when the locking member is rotated to leave the locking position.

[0043] In the above embodiment, the second locking member moves along the second direction with the second positioning member and is locked after the second positioning member moves into position, which helps to increase the moving range of the second positioning member to accommodate different workpieces with a larger size range.

[0044] In a possible embodiment, the positioning device also includes a bracket, which is slidably arranged on the base along the second direction and protrudes to both sides of the support member. The bracket is configured to support and drive a rolling member to move, and the rolling member is used to roll the diaphragm to adhere to the workpiece.

[0045] In the above embodiment, the bracket provides movement guidance and support for the rolling member, which is beneficial to improving the stability and smoothness of film application, and further beneficial to improving the film application effect.

[0046] On the second aspect, the present application proposes a film-sticking device, comprising a rolling member and a positioning device, the positioning device being used to position a workpiece, the rolling member being configured to roll a film onto the workpiece on the positioning device, the positioning device being used to position the workpiece to which the film is to be stuck, and the positioning device comprising a base, a support member, two first positioning members, a first locking member, a second positioning member, a second locking member and a third positioning member. The support member is replaceably assembled to the base. The two first positioning members are slidably arranged on the base along a first direction to abut against opposite sides of the workpiece. The first locking member is configured to lock the two first positioning members on the base. The second positioning member is slidably arranged on the base along a second direction, the second direction intersecting with the first direction. The second locking member is configured to lock the second positioning member on the base. The third positioning member is arranged on the base and is configured to abut against opposite sides of the workpiece with the second positioning member.

[0047] In the above-mentioned film laminating device, the support member is replaceably assembled to the base to accommodate workpieces of varying structures. The two first positioning members slide to either side of the workpiece and are locked to the base by the first locking member when the two first positioning members abut against the workpiece. The second positioning member slides to the side of the workpiece facing away from the third positioning member and is locked to the workpiece by the second locking member when the second and third positioning members abut against the workpiece, respectively. The two first positioning members accommodate dimensional variations of different workpieces along the first direction, while the second and third positioning members accommodate dimensional variations of different workpieces along the second direction, thereby enhancing the versatility of the positioning device in locating workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A schematic diagram of a film-sticking device provided in an embodiment of the present application.

[0049] Figure 2 for Figure 1 The diagram shows a top view of the positioning device in the film laminating device when positioning the workpiece.

[0050] Figure 3 for Figure 2 The structural diagram of the positioning device is shown.

[0051] Figure 4 for Figure 2 A schematic diagram showing the exploded support and base parts of the positioning device is shown.

[0052] Figure 5 for Figure 2 Schematic diagram of the support column in the positioning device shown.

[0053] Figure 6 for Figure 3 The schematic diagram of another embodiment is shown when the structure of the support member in the positioning device is changed.

[0054] Figure 7 for Figure 4A schematic diagram of the positioning device shown with the base and support removed.

[0055] Figure 8 for Figure 3 The schematic diagram of another embodiment in which the structure of the first locking member in the positioning device is changed is shown.

[0056] Figure 9 for Figure 3 The schematic diagram of the cross-section of the positioning device shown.

[0057] Figure 10 for Figure 9 The partial schematic diagram of the positioning device at X is shown.

[0058] Figure 11 for Figure 9 The partial schematic diagram of the positioning device shown at XI.

[0059] Figure 12 for Figure 3 The figure shows an exploded schematic diagram of the third positioning member, the third locking member and part of the base in the positioning device.

[0060] Figure 13 for Figure 12 The schematic diagram of the positioning device shown is from another perspective.

[0061] Figure 14 for Figure 12 Shown is a schematic diagram of a positioning device in another embodiment.

[0062] Figure 15 for Figure 14 Schematic diagram of the positioning device shown in which the correction member protrudes out of the bearing surface.

[0063] Figure 16 for Figure 12 Shown is a schematic diagram of a positioning device in yet another embodiment.

[0064] Description of main component symbols

[0065] Positioning device 100

[0066] Base 10, 10a

[0067] First substrate 11

[0068] Accommodation chamber 1101

[0069] Second base body 13

[0070] The second magnetic attraction portion 15

[0071] Positioning portion 103

[0072] Chute 105

[0073] Support members 20, 20a

[0074] Support column 21

[0075] Support surface 211

[0076] First magnetic attraction portion 213

[0077] Avoidance hole 201

[0078] Positioning hole 203

[0079] First positioning member 30

[0080] First body 31

[0081] First abutment block 33

[0082] The third positioning surface 301

[0083] First locking member 40

[0084] Screw 41

[0085] Nut 43

[0086] Connecting rod 45

[0087] Abutment 47

[0088] Second positioning member 50

[0089] Slide hole 501

[0090] Second stopper 51

[0091] First positioning surface 503

[0092] Second body 53

[0093] Second abutment block 55

[0094] Second locking member 60

[0095] Locking member 61

[0096] Sliding shaft 63

[0097] First stopper 631

[0098] Second elastic member 65

[0099] The third positioning member 70

[0100] Bearing surface 701

[0101] Second positioning surface 703

[0102] Top surface 705

[0103] Avoidance slot 707

[0104] Positioning pin 71

[0105] Main body 73

[0106] Abutment 75

[0107] Third locking members 80, 80a, 80b

[0108] First top holding member 83

[0109] Second top holding member 85

[0110] Pressed film 90

[0111] Correction parts 110, 110a

[0112] First elastic member 120

[0113] Guide assembly 130

[0114] Guide Rail 131

[0115] Slider 133

[0116] First in command 140

[0117] Second Hand 150

[0118] Bracket 160

[0119] Film sticking device 300

[0120] Rolled parts 3001

[0121] First direction X

[0122] Second direction Y

[0123] The third direction Z

[0124] Workpiece 400

[0125] Diaphragm 500

[0126] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0127] In order to further illustrate the technical means and effects adopted by this application to achieve the intended application purpose, the following is combined with the drawings and implementation methods. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0128] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0129] Some embodiments of the present application provide a positioning device for positioning a workpiece to be attached with a film sheet, and the positioning device includes a base, a support, two first positioning members, a first locking member, a second positioning member, a second locking member, and a third positioning member. The support member is replaceably assembled to the base. The two first positioning members are slidably arranged on the base along a first direction to abut against opposite sides of the workpiece. The first locking member is configured to lock the two first positioning members on the base. The second positioning member is slidably arranged on the base along a second direction, and the second direction intersects with the first direction. The second locking member is configured to lock the second positioning member on the base. The third positioning member is arranged on the base and is configured to abut against opposite sides of the workpiece with the second positioning member.

[0130] In the positioning device described above, the support members are replaceably assembled to the base to accommodate workpieces of varying structures. The two first positioning members slide to either side of the workpiece and are locked to the base by a first locking member when the two first positioning members abut against the workpiece. The second positioning member slides to the side of the workpiece facing away from the third positioning member, and are locked to the workpiece by a second locking member when the second and third positioning members abut against the workpiece, respectively. The two first positioning members accommodate dimensional variations of different workpieces along the first direction, while the second and third positioning members accommodate dimensional variations of different workpieces along the second direction, thereby enhancing the versatility of the positioning device in locating workpieces.

[0131] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0132] Please also see Figures 1 to 3 One embodiment of the present application provides a positioning device 100. In one embodiment, the workpiece 400 is a bar phone, but is not limited thereto. For example, in other embodiments, the workpiece 400 may also be a tablet computer, a learning device, a foldable phone, or other structures to be film-coated. The positioning device 100 positions the workpiece 400 and exposes the portion of the workpiece 400 to be film-coated, so that the workpiece 400 enters the film-coating process. The portion to be film-coated may be, for example, a screen or a camera trim.

[0133] It is understood that in other embodiments, the positioning device 100 can also be applied to other manufacturing processes of the workpiece 400. For example, the positioning device 100 clamps and positions the workpiece 400, and the workpiece 400 is used to assemble parts such as camera decorations and flashlights, or to repair parts such as cameras.

[0134] The present application also provides a film laminating device 300 . The film laminating device 300 includes a rolling member 3001 and a positioning device 100 . The rolling member 3001 is configured to roll the film 500 on the positioning device 100 so that the film 500 adheres to the workpiece 400 .

[0135] The positioning device 100 includes a base 10 and a support member 20. The support member 20 is replaceably assembled to the base 10. In one embodiment, the support member 20 includes a plurality of support columns 21. The plurality of support columns 21 are respectively attached to the base 10, and each support column 21 is configured to be repositionable on the base 10. Each support member 20 has a support surface 211. The support surfaces 211 of the plurality of support columns 21 are configured to support a workpiece 400.

[0136] See also Figure 3 、 Figure 4 and Figure 5 In one embodiment, the support member 20 is adsorbed to the base 10 by magnetic attraction. For example, the support member 20 is provided with a first magnetic attraction portion 213, and the side of the base 10 facing the support member 20 is provided with a second magnetic attraction portion 15 made of a material that is adsorbed by a magnet. For example, the first magnetic attraction portion 213 is a magnet structure. The base 10 includes a first base 11, a second base 13 and a second magnetic attraction portion 15. The first base 11 is provided with a accommodating cavity 1101, and the second base 13 is covered on the first base 11. The second magnetic attraction portion 15 is provided on the side of the second base 13 facing away from the first base 11. In one embodiment, the second magnetic attraction portion 15 is a steel plate structure, but is not limited thereto. For example, in other embodiments, the second magnetic attraction portion 15 may also be a plate-like structure made of a material that can be adsorbed by a magnet, such as nickel and / or cobalt.

[0137] The second base 13 can be made of plastic material to reduce the overall weight of the base 10 and provide support for the second magnetic portion 15 , thereby providing support for the pressing force of the film sheet 500 .

[0138] It is understood that in other embodiments, the second base 13 may also be omitted. The second magnetic portion 15 is directly connected to the first base 11 .

[0139] It is understood that in other embodiments, the second magnetic attraction portion 15 may also be a plate-shaped magnet structure, and the first magnetic attraction portion 213 may be a structure made of a material capable of being attracted by a magnet, such as iron, nickel, and / or cobalt. The support member 20 may also be entirely supported by a material capable of being attracted by a magnet.

[0140] Each support frame selects a location on the second magnetic attraction portion 15 for attachment to a specific workpiece 400. For example, the support member 20 can be attached to a relatively flat surface of the workpiece 400, avoiding protrusions or depressions on the workpiece 400. In one embodiment, there are four support members 20, each attached to the four corners of the workpiece 400, but this is not limiting.

[0141] In one embodiment, the support surfaces 211 of the plurality of support members 20 on the side facing away from the base 10 are coplanar, thereby reducing the dimensional chain and improving the accuracy of the support members 20 in positioning the workpiece 400, but the present invention is not limited thereto. For example, in another embodiment, the support surfaces 211 of a portion of the plurality of support members 20 are coplanar with one plane, while the support surfaces 211 of another portion are coplanar with another plane, and the two planes are not coplanar.

[0142] The positions of the multiple support columns 21 on the base 10 are variable, which helps the multiple support columns 21 adapt to different workpieces 400. There is no need to manufacture support structures adapted to different workpieces 400, which helps save costs.

[0143] The support member 20 and the base 10 are fixed by magnetic attraction, which is convenient for assembly and disassembly, further improving the convenience of installation.

[0144] It can be understood that in other embodiments, the support member 20 and the base 10 can also be positioned by negative pressure adsorption. For example, the base 10 has multiple adsorption holes (not shown in the figure), and the support member 20 can cooperate with each adsorption hole. The adsorption holes are correspondingly configured with plugs (not shown in the figure). After the plugs are removed, the adsorption holes are connected to the negative pressure device and can adsorb and fix the support member 20.

[0145] In another embodiment, if Figure 6 As shown, the support member 20a can be made into multiple pieces, and each support member 20a is provided with at least one avoidance hole 201 to form support members 20a with different structures. Each support member 20a is adapted to one or more structures of the workpiece 400, and the multiple support members 20a are detachably connected to the base 10. The support member 20a adapted to the workpiece 400 is selected and installed on the base 10, and then the subsequent workpiece 400 positioning and film application operations are carried out. The support member 20a is detachably connected to the base 10, and a plurality of support members 20a with different structures are provided. Each support member 20a is adapted to one or more structures of the workpiece 400, thereby improving the versatility of the positioning device 100.

[0146] The base 10 is provided with two positioning portions 103. Each support member 20a is provided with two positioning holes 203. Each positioning portion 103 is passed through a positioning hole 203 to improve the consistency of the positioning of different support members 20a and the base 10, to improve the positioning accuracy of the support member 20a and the base 10, and to facilitate improving the relative position accuracy of the avoidance hole 201 and the avoidance position of the workpiece 400 when the positioning device 100 clamps the workpiece 400. In one embodiment, the positioning portion 103 is a cylindrical pin structure, and the positioning hole 203 is a circular hole structure, but is not limited to this. For example, in other embodiments, the positioning portion 103 is a square column structure, and the positioning hole 203 is an adapted square hole. It can be understood that in other embodiments, the number of positioning portions 103 and positioning holes 203 can also be three or other numbers.

[0147] See also Figure 3 、 Figure 4 and Figure 7 The positioning device 100 further includes two first positioning members 30, a first locking member 40, a second positioning member 50, a second locking member 60, and a third positioning member 70. The two first positioning members 30 are slidably disposed on the base 10 along the first direction X and are configured to be clamped on opposite sides of the workpiece 400. The first locking member 40 is configured to lock the two first positioning members 30 on the base 10. The third positioning member 70 is disposed on the base 10. The second positioning member 50 is slidably disposed on the base 10 along the second direction Y and is configured to be clamped on opposite sides of the workpiece 400 with the third positioning member 70. The second locking member 60 is configured to lock the second positioning member 50 on the base 10.

[0148] The support member 20 is replaceably assembled on the base 10 to adapt to supporting workpieces 400 with different structures; the two first positioning members 30 slide to both sides of the workpiece 400, and are locked to the base 10 by the first locking member 40 when the two first positioning members 30 are against the workpiece 400; the second positioning member 50 slides to the side of the workpiece 400 away from the third positioning member 70, and is locked to the workpiece 400 by the second locking member 60 when the second positioning member 50 and the third positioning member 70 are respectively against the workpiece 400; the two first positioning members 30 adapt to the dimensional changes of different workpieces 400 along the first direction X, and the second positioning members 50 and the third positioning members 70 adapt to the dimensional changes of different workpieces 400 along the second direction Y, thereby improving the versatility of the positioning device 100 for positioning the workpiece 400.

[0149] An existing jig adapted for product film lamination has a groove for accommodating and positioning the product. To facilitate the removal and placement of the product from the groove, there is a gap between the product and the groove wall, which results in poor positioning accuracy of the jig for the product and increases the scrap rate of the product protective film.

[0150] The positioning device 100 is respectively abutted against the workpiece 400 through the first positioning member 30, the second positioning member 50 and the third positioning member 70. There is no gap between the positioning device 100 and the workpiece 400, thereby reducing the dimension chain, which is beneficial to improving the accuracy of the positioning device 100 in positioning the workpiece 400, and is beneficial to increasing the distance between the edge of the diaphragm 500 and the edge of the workpiece 400 where the film is to be pasted, thereby improving the relative position accuracy of the diaphragm 500 and the workpiece 400.

[0151] See also Figure 7 In one embodiment, the first locking member 40 includes a screw 41, a nut 43, and two connecting rods 45. The screw 41 is rotatably mounted on the base 10. The nut 43 is threadedly connected to the screw 41 and moves along the first direction X as the screw 41 rotates. The two connecting rods 45 are symmetrically and rotationally connected to opposite sides of the nut 43. Each connecting rod 45 is rotatably connected to a first positioning member 30 at one end away from the nut 43. The rotation of the screw 41 drives the nut 43 to move, which in turn drives the two connecting rods 45 to move symmetrically, thereby causing the two first positioning members 30 to move symmetrically. This facilitates the two first positioning members 30 to align and clamp the workpiece 400 along the first direction X, thereby improving the positioning accuracy of the workpiece 400 and the fit between the diaphragm 500 and the workpiece 400. For example, this improves the positional accuracy between a mobile phone camera and the hole in the diaphragm 500. Furthermore, the cooperation between the screw 41 and the nut 43 simultaneously drives the two first positioning members 30 to move to a position and locks them in that position.

[0152] In one embodiment, the first locking member 40 is accommodated in the accommodating cavity 1101, and the screw 41, nut 43, and two connecting rods 45 are respectively accommodated in the accommodating cavity 1101. The base 10 is further provided with a slide groove 105 extending along the first direction X. The slide groove 105 communicates with the accommodating cavity 1101, allowing the first positioning member 30 to pass through the slide groove 105 and connect with the connecting rod 45, and the first positioning member 30 slides along the slide groove 105.

[0153] It is understood that in other embodiments, the first base 11 may be omitted, and the first locking member 40 and the supporting member 20 are disposed on opposite sides of the second base 13 along the third direction Z. The third direction Z is perpendicular to the first direction X and the second direction Y.

[0154] In one embodiment, the first direction X is perpendicular to the second direction Y, but the present invention is not limited thereto. For example, in other embodiments, the angle between the first direction X and the second direction Y may be 30°, 50°, 60°, 70°, or other angles.

[0155] In one embodiment, the positioning device 100 further includes a first handle 140. The screw 41 protrudes from the exterior of the base 10 and is connected to the first handle 140. The first handle 140 facilitates gripping to rotate the screw 41. It is understood that in other embodiments, the first handle 140 may be omitted. For example, in another embodiment, the screw 41 is externally connected to a drive mechanism (not shown), such as a motor, which is activated by a switch to drive the screw 41.

[0156] In another embodiment, if Figure 8 As shown, the first locking member 40a includes two abutting members 47. Each abutting member 47 is threadedly connected to the base 10. The two abutting members 47 are disposed on opposite sides of the support member 20 along the first direction X. Each abutting member 47 is configured to push against a first positioning member 30. The two first positioning members 30 are moved toward each other by an external force and abut against opposite sides of the workpiece 400 along the first direction X. The abutting members 47 are rotated to thread the abutting members 47 relative to the base 10 and then move toward the first positioning members 30, so that the two abutting members 47 respectively abut against the outer sides of the two first positioning members 30, thereby locking the two first positioning members 30 to the base 10.

[0157] In one embodiment, the positioning device 100 further includes a guide assembly 130, such as Figure 7 As shown, the guide assembly 130 includes a guide rail 131 and a plurality of sliders 133. The sliders 133 are slidably mounted on the guide rail 131. The second positioning member 50 and the nut 43 are respectively connected to different sliders 133 to provide support and guidance for the second positioning member 50 and the nut 43 to move along the first direction X. The second positioning member 50 and the nut 43 share the guide assembly 130 for movement along the first direction X, simplifying the structure and reducing costs.

[0158] In one embodiment, there are two guide assemblies 130 , which are symmetrically located on both sides of the screw rod 41 , but the present invention is not limited thereto. For example, in other embodiments, there may be only one guide assembly 130 .

[0159] It is understandable that in other embodiments, a groove structure can also be opened on the base 10, and the nut 43 and the second positioning member 50 respectively protrude into the groove and slide in the groove along the first direction X, which can also provide motion guidance for the second positioning member 50 and the nut 43.

[0160] See also Figure 9 and Figure 10In one embodiment, the second locking member 60 includes a locking member 61, a sliding shaft 63, and a second elastic member 65. The sliding shaft 63 is provided with a first stop portion 631. The second positioning member 50 is provided with a through sliding hole 501. The sliding shaft 63 is slidably disposed in the sliding hole 501. The inner wall of the sliding hole 501 extends inward to form the second stop portion 51. The second elastic member 65 is disposed in the sliding hole 501, with both ends abutting between the first stop portion 631 and the second stop portion 51. The locking member 61 is rotatably connected to the sliding shaft 63 and is stopped by the side of the second positioning member 50 away from the first stop portion 631.

[0161] The first stop portion 631 is configured to abut against the base 10 in a direction intersecting the sliding direction of the sliding shaft 63 under the elastic force of the second elastic member 65 when the locking member 61 rotates to the locked position. When the second positioning member 50 is subjected to a force in the second direction Y, the friction force between the first stop portion 631 and the base 10 causes the second positioning member 50 to be positioned relative to the base 10 in the second direction Y. The first stop portion 631 is configured to move with the sliding shaft 63 and disengage from the base 10 when the locking member 61 rotates out of the locked position.

[0162] In one embodiment, the locking member 61 is in the locked position when it rotates to a position substantially parallel to the side of the second positioning member 50. The spacing between the outer peripheral wall of the locking member 61 in contact with the second positioning member 50 and the rotation axis of the second slide shaft 63, through which the locking member 61 is rotatably connected, varies. When the locking member 61 rotates toward the locked position, the spacing between the outer peripheral wall in contact with the second positioning member 50 and the rotation axis of the locking member 61 decreases, causing the slide shaft 63 to move toward the side of the second positioning member 50 away from the locking member 61. Consequently, under the action of the second elastic force, the second stop portion 51 is driven to move toward the base 10, causing the second stop portion 51 to abut against the base 10, thereby positioning the second positioning member 50 relative to the base 10.

[0163] When positioning the workpiece 400, first place the workpiece 400 on the support member 20 and make the workpiece 400 fit the third positioning member 70; rotate the screw 41 of the first locking member 40 to move the two first positioning members 30 along the first direction X and align the pre-positioned workpiece 400; push the second positioning member 50 to move along the second direction Y so that the second positioning member 50 and the third positioning member 70 abut against opposite sides of the workpiece 400; press down the locking member 61 so that the second stop portion 51 abuts against the base 10, locking the second positioning member 50.

[0164] The second locking member 60 moves along the second direction Y with the second positioning member 50 and is locked after the second positioning member 50 moves into position, thereby increasing the movement range of the second positioning member 50 to accommodate different workpieces 400 with a larger size range.

[0165] It is understandable that in other embodiments, the second locking member 61 can also be an adjusting bolt, which is threadedly connected to the base 10 and pushes the second positioning member 50 along the first direction X or the third direction Z, thereby positioning the second positioning member 50 relative to the base 10.

[0166] See also Figure 9 and Figure 11 In one embodiment, the third positioning member 70 is slidably provided on the base 10 along the third direction Z. The positioning device 100 further includes a third locking member 80. The third locking member 80 is configured to lock the third positioning member 70 on the base 10. The third positioning member 70 is provided with a bearing surface 701. The bearing surface 701 is configured to support the diaphragm 500. The support member 20 supports the workpiece 400. The third positioning member 70 slides along the third direction Z, which is conducive to adjusting the bearing surface 701 to be flush with the surface of the workpiece 400 to be film-applied away from the support member 20, so as to reduce the step difference between the workpiece 400 and the bearing surface 701, thereby reducing the risk of the diaphragm 500 being bent when placed on the bearing surface 701 and the workpiece 400, thereby facilitating improving the accuracy of film application.

[0167] Please continue reading Figures 11 to 13 In one embodiment, the positioning device 100 further includes a film pressing member 90. The film pressing member 90 is rotatably disposed on the third positioning member 70 and can be rotated to press against the diaphragm 500. One end of the diaphragm 500 is supported on the supporting surface 701. The film pressing member 90 rotates toward the supporting surface 701 to press against the supporting surface 701 on opposite sides of the diaphragm 500, thereby fixing the ends of the diaphragm 500, thereby facilitating the stability of the diaphragm 500 during the process of being pressed against the workpiece 400, and improving the fitting accuracy between the diaphragm 500 and the workpiece 400. When the film pressing member 90 rotates away from the supporting surface 701, the diaphragm 500 is released from pressure, and the excess material of the diaphragm 500 after bonding can be removed.

[0168] In one embodiment, the bearing surface 701 is provided with a positioning pin 71, such as Figure 3 As shown, the positioning pin 71 is configured to pass through the hole in the diaphragm 500 to position the diaphragm 500 along the first direction X and the second direction Y. One end of the diaphragm 500 is first positioned in the first direction X and the second direction Y through the hole and the positioning pin 71, and then the film pressing member 90 is pressed and fixed to achieve positioning in the third direction Z. This improves the relative positioning accuracy between the diaphragm 500 and the workpiece 400, which helps improve the accuracy of film application.

[0169] In one embodiment, the positioning pin 71 is a cylindrical structure, and the number of the positioning pins 71 is two, but the present invention is not limited thereto. For example, in other embodiments, the positioning pin 71 may also be a rectangular block structure.

[0170] It is understandable that in other embodiments, the film pressing member 90 may also be omitted, and the positioning pin 71 cooperates with the hole of the diaphragm 500 to achieve pre-positioning.

[0171] It is understood that in other embodiments, the positioning pin 71 may be omitted. For example, the diaphragm 500 is positioned by abutting against the third positioning member 70 along the first direction X and the second direction Y, and then is pressed and fixed to the bearing surface 701 by the film pressing member 90 .

[0172] In one embodiment, the positioning device 100 further includes a calibration member 110. The calibration member 110 is used to calibrate the flatness of the support surface 701 and the workpiece 400 positioned on the support member 20. The calibration member 110 is rotatably mounted on the die pressing member 90. The calibration member 110 is rotatable to engage the support surface 701, with one end of the calibration member 110 protruding from the side of the third positioning member 70 facing the second positioning member 50.

[0173] In one embodiment, the second positioning member 50 has a first positioning surface 503 on a side facing the third positioning member 70, and the third positioning member 70 has a second positioning surface 703 on a side facing the second positioning member 50. The first positioning surface 503 and the second positioning surface 703 are configured to abut opposite sides of the workpiece 400 along the second direction Y. The calibration member 110 protrudes from the side of the second positioning surface 703 facing the first positioning surface 503.

[0174] In another embodiment, see Figure 14 and Figure 15 The calibration member 110a is slidably disposed on the die pressing member 90 along the second direction Y. The calibration member 110a is configured to be in contact with the supporting surface 701, and one end of the calibration member 110a can slide to the side of the third positioning member 70 facing the second positioning member 50, that is, one end of the calibration member 110a protrudes outside the supporting surface 701.

[0175] The workpiece 400 is carried on the support member 20, and the side of the workpiece 400 facing away from the support member 20 is the side to be film-applied. The correction member 110 can fit with the carrying surface 701 and protrude to the side of the third positioning member 70 facing the second positioning member 50. The correction member 110 moves along the third direction Z following the third positioning member 70, so that the part of the correction member 110 protruding outside the third positioning member 70 can fit with the part of the workpiece 400 to be film-applied, thereby correcting the flatness of the carrying surface 701 and the part of the workpiece 400 to be film-applied, thereby reducing the step difference between the carrying surface 701 and the part of the workpiece 400 to be film-applied. After the correction of the correction member 110 is completed, the third locking member 80 is locked to position the workpiece 400 and the carrying surface 701 relative to each other along the third direction Z; then, the correction member 110 returns to its original position: Figure 7As shown, the calibration member 110 rotates away from the support surface 701 and engages the film pressing member 90. The calibration member 110 clears the support surface 701 in the third direction Z. The second positioning member 50 moves along the second direction Y to the opposite sides of the workpiece 400 where it is clamped by the third positioning member 70, thereby securing the workpiece 400. The film 500 is placed on the support surface 701 and the workpiece 400, and is rolled to adhere to the area of ​​the workpiece 400 to be filmed.

[0176] In one embodiment, the film pressing member 90 rotates 180° between a first position and a second position. When the film pressing member 90 rotates to press against the diaphragm 500, it is in the first position, and the film pressing member 90 is in contact with the support surface 701. When the film pressing member 90 rotates to release from the diaphragm 500 and contact the third positioning member 70, it is in the second position, but the present invention is not limited thereto. For example, in another embodiment, the film pressing member 90 is parallel to the support surface 701, or the third positioning member 70 faces away from the top surface 705 of the base 10, and is spaced apart from both the support surface 701 and the top surface 705. The film pressing member 90 may also rotate 120° between the first position and the second position, or at other angles.

[0177] When the film pressing member 90 is in the first position, it presses against the diaphragm 500 and is magnetically positioned relative to the support surface 701. This helps stabilize the film 500 and improves the reliability of the film 500 when attached to the workpiece 400. When the film pressing member 90 is in the second position, it is detached from the diaphragm 500 and is magnetically positioned relative to the top surface 705 of the third positioning member 70, which helps maintain the positional stability of the film pressing member 90 when not in use. When the calibration member 110 is in the third position, it is in contact with the support surface 701 and is magnetically positioned relative to the support surface 701. This helps reduce the possibility that the calibration member 110 may be moved or tilted by external forces, resulting in an inaccurate step difference between the calibration support surface 701 and the surface of the workpiece 400 to be filmed. When the correction member 110 is in the fourth position, it is separated from the supporting surface 701 and is positioned relative to the film pressing member 90 through magnetic attraction, which helps to improve the position stability of the correction member 110 when not in use and reduces the possibility of the correction member 110 protruding out of the supporting surface 701 and affecting the film application when the workpiece 400 is applied with the film sheet 500.

[0178] In one embodiment, the third locking member 80 is threadedly connected to the third positioning member 70 and is configured to rotate relative to the third positioning member 70 in a direction intersecting the third direction Z until it abuts the base 10, but the present invention is not limited thereto. The third locking member 80 is connected to the third positioning member 70 and abuts the base 10. The friction between the third locking member 80 and the base 10 maintains the relative positioning of the third positioning member 70 and the base 10. After the third positioning member 70 is adjusted in the third direction Z, it is locked to the base 10, thereby stably positioning the workpiece 400 and the diaphragm 500 and improving the accuracy of film application.

[0179] In one embodiment, the positioning device 100 further includes a second handle 150. The second handle 150 is connected to the third locking member 80 and protrudes out of the base 10 for easy operation.

[0180] It can be understood that in other embodiments, the third locking member 80 can also be threadedly connected to the base 10, and is configured to move relative to the base 10 in a direction intersecting with the third direction Z when rotating until it abuts against the third positioning member 70, and the third positioning member 70 is positioned relative to the base 10 by relying on the friction force between the third locking member 80 and the third positioning member 70.

[0181] In another embodiment, see Figure 14 and Figure 15 The third locking member 80a includes a first supporting member 83 and a second supporting member 85. The first supporting member 83 and the second supporting member 85 are respectively rotatably connected to the base 10. The first supporting member 83 abuts one end of the second supporting member 85. When the first supporting member 83 rotates, it can drive the second supporting member 85 to rotate until the other end of the second supporting member 85 abuts the third positioning member 70. The base 10 connected to the second supporting member 85 is positioned relative to the third positioning member 70 by relying on the friction between the second abutting member 47 and the third positioning member 70.

[0182] In one embodiment, the first supporting member 83 is a cam structure, and the rotation axes of the first supporting member 83 and the second supporting member 85 are parallel, but the present invention is not limited thereto. For example, in another embodiment, the first supporting member 83 is threadedly connected to the base 10, and the rotation axes of the first supporting member 83 and the second supporting member 85 are perpendicular. The first supporting member 83 is a cam structure, or is threadedly connected to the base 10, so that the first supporting member 83 drives the second supporting member 85 to rotate and abut against the third positioning member 70, thereby achieving relative positioning between the third positioning member 70 and the base 10, thereby locking the third locking member 80a.

[0183] The calibration member 110a moves along the second direction Y until it contacts the support surface 701. The third positioning member 70 moves along the third direction Z, bringing the calibration member 110a into contact with the area of ​​the workpiece 400 to be film-applied. After calibration of the calibration member 110a is completed, the third locking member 80a is locked, positioning the workpiece 400 relative to the support surface 701 along the third direction Z. The calibration member 110a then returns to its original position. After calibration, the calibration member 110a slides along the second direction Y to disengage and expose the support surface 701, clearing the support surface 701 in the third direction Z. The second positioning member 50 moves along the second direction Y to the opposite sides of the workpiece 400 clamped by the third positioning member 70, securing the workpiece 400. The film 500 is placed on the support surface 701 and the workpiece 400, and the film 500 is rolled to adhere to the area of ​​the workpiece 400 to be film-applied.

[0184] In another embodiment, Figure 16 As shown, the third locking member 80b is rotatably connected to the base 10 and is threadedly connected to the third positioning member 70 along the third direction Z. The third locking member 80b is configured to move the third positioning member 70 along the third direction Z and maintain it in a fixed position when rotated. For example, the third locking member 80b is configured as an adjustment bolt. The third locking member 80b rotates and transmits a threaded drive to move the third positioning member 70 along the third direction Z and lock it in a fixed position, thereby achieving a secure lock for the third locking member 80b. This facilitates installation and operation.

[0185] The calibration member 110a moves along the second direction Y until it contacts the support surface 701. The third positioning member 70 moves along the third direction Z, bringing the calibration member 110a into contact with the area of ​​the workpiece 400 to be film-applied. After calibration of the calibration member 110a is completed, the third locking member 80b is locked, positioning the workpiece 400 relative to the support surface 701 along the third direction Z. The calibration member 110a then returns to its original position. After calibration, the calibration member 110a slides along the second direction Y to disengage from the support surface 701, clearing the support surface 701 in the third direction Z. The second positioning member 50 moves along the second direction Y to the opposite sides of the workpiece 400 clamped by the third positioning member 70, securing the workpiece 400. The film 500 is placed on the support surface 701 and the workpiece 400, and the film 500 is rolled to adhere to the area of ​​the workpiece 400 to be film-applied.

[0186] In one embodiment, the positioning device 100 further includes a first elastic member 120. The first elastic member 120 is positioned between the third positioning member 70 and the base 10 and is configured to apply an elastic force to the third positioning member 70, causing it to move away from the base 10 in the third direction Z. The first elastic member 120 elastically supports the third positioning member 70. Adjustment of the third positioning member 70 in the third direction Z can be achieved by simply pressing downward, without having to lift the third positioning member 70, making adjustment effortless and easy.

[0187] In one embodiment, the positioning device 100 further includes a bracket. The bracket is slidably disposed on the base 10 along the second direction Y and protrudes to both sides of the support member 20. The bracket is configured to support and drive the movement of the rolling member 3001, which is used to roll the film 500 onto the workpiece 400. The bracket provides movement guidance and support for the rolling member 3001, thereby improving the stability and smoothness of film application, thereby enhancing the film application effect.

[0188] It is understandable that in other embodiments, the third positioning member 70 can also be fixedly connected to the base 10, and through the different thicknesses of the support member 20, it can adapt to workpieces 400 of different thicknesses, so that the surface to be film-laminated of the workpiece 400 is flush with the bearing surface 701.

[0189] The first positioning member 30, the second positioning member 50 and the third positioning member 70 are respectively provided with avoidance positions to avoid the structural features of the peripheral side of the workpiece 400: for example, buttons, sound holes, charging ports, etc. Figure 3 As shown, the third positioning member 70 is provided with an avoidance groove 707 , and the avoidance groove 707 is used to avoid the structure of the workpiece 400 , such as a button (not shown).

[0190] When the size or structure of the workpiece 400 changes, the position of the structure to be avoided on the side of the workpiece 400 changes. In one embodiment, the third positioning member 70 includes a main body 73 and an abutment member 75. The main body 73 is slidably connected to the base 10 along the third direction Z. The abutment member 75 is adjustably connected to the main body 73. The avoidance groove 707 is provided on the side of the abutment member 75 facing the support member 20. When the structure of the workpiece 400 changes, for example, the position of the structure to be avoided changes, the position of the abutment member 75 installed on the main body 73 is adjusted so that the avoidance groove 707 corresponds to the position of the structure to be avoided. For example, the abutment member 75 is connected to the main body 73 by magnetic attraction, and the abutment member 75 is connected to the main body 73 after rotating 180° in a plane perpendicular to the second direction Y, and the position of the avoidance groove 707 changes to adapt to the structure to be avoided at different positions of the workpiece 400.

[0191] It is understood that in other embodiments, the abutment member 75 can also be connected after being moved along the first direction X or the second direction Y to achieve position adjustment of the avoidance groove 707. For example, one of the abutment member 75 and the main body 73 is provided with a pin (not shown), and the other is provided with a plurality of pin holes (not shown) arranged along the first direction X and / or the second direction Y. The pins are connected to different pin holes to achieve adjustment of the position of the abutment member 75 relative to the main body 73, thereby adjusting the position of the avoidance groove 707 according to the position of the structure to be avoided on the workpiece 400.

[0192] Alternatively, in another embodiment, the abutment member 75 can be magnetically connected to different positions of the main body 73, thereby adjusting the position of the avoidance groove 707 to adapt to structures to be avoided at different positions.

[0193] like Figure 3As shown, the first positioning member 30 includes a first body 31 and a first abutment block 33. The first body 31 and the first abutment block 33 are respectively provided with a third positioning surface 301. The first abutment block 33 is located on the side of the first body 31 away from the base 10 along the third direction Z. When the size of the workpiece 400 along the third direction Z changes, the first abutment block 33 can be removed from the first body 31 or first abutment blocks 33 of different sizes along the third direction Z can be installed to obtain different sizes of the third positioning surface 301 along the third direction Z, thereby adapting to the different sizes of the workpiece 400 along the third direction Z. The second positioning member 50 includes a second body 53 and a second abutment block 55. The second body 53 and the second abutment block 55 are respectively provided with a first positioning surface 503. The second abutment block 55 is located on the side of the second body 53 along the third direction Z away from the base 10. When the size of the workpiece 400 along the third direction Z changes, the second abutment block 55 can be removed from the second body 53 or a second abutment block 55 of different sizes along the third direction Z can be installed to obtain different sizes of the first positioning surface 503 along the third direction Z, thereby adapting to different sizes of the workpiece 400 along the third direction Z.

[0194] It is understood that in other embodiments, the first abutment block 33 and / or the second abutment block 55 may be omitted, and the positioning device 100 may further include a lifting drive structure (not shown). The lifting drive structure drives the support member 20 to move along the third direction Z, thereby adjusting the positions of the first positioning member 30 and the second positioning member 50 against the circumference of the workpiece 400 to accommodate workpieces 400 of different sizes along the third direction Z, thereby preventing the first positioning member 30 and the second positioning member 50 from protruding to the side of the workpiece 400 where the film is to be applied, away from the support member 20, thereby affecting the film application.

[0195] In the above-mentioned positioning device 100, the support member 20 is replaceably assembled on the base 10 to adapt to supporting workpieces 400 with different structures. The two first positioning members 30 slide to both sides of the workpiece 400, and are locked to the base 10 by the first locking member 40 when the two first positioning members 30 are against the workpiece 400; the second positioning member 50 slides to the side of the workpiece 400 away from the third positioning member 70, and is locked to the workpiece 400 by the second locking member 60 when the second positioning member 50 and the third positioning member 70 are respectively against the workpiece 400; the two first positioning members 30 adapt to the dimensional changes of different workpieces 400 along the first direction X, and the second positioning members 50 and the third positioning members 70 adapt to the dimensional changes of different workpieces 400 along the second direction Y, thereby improving the versatility of the positioning device 100 for positioning the workpiece 400.

[0196] In addition, those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present application and are not intended to limit the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of disclosure of the present application.

Claims

1. A positioning device for positioning a workpiece, characterized in that: The positioning device comprises: base; a support member, replaceably assembled on the base; Two first positioning members are slidably disposed on the base along a first direction to abut against opposite sides of the workpiece; A first locking member configured to lock the two first positioning members to the base; and a second positioning member, slidably disposed on the base along a second direction, wherein the second direction intersects the first direction; a second locking member configured to lock the second positioning member to the base; The third positioning member is disposed on the base and is configured to abut against two opposite sides of the workpiece with the second positioning member.

2. The positioning device according to claim 1, wherein: The support member includes a plurality of support columns, each of which is detachably adsorbed on the base to change the position of the support column on the base; A supporting surface is provided on a side of each of the supporting columns facing away from the base, and the supporting surfaces of the plurality of supporting columns are configured to support the workpiece.

3. The positioning device according to claim 2, wherein: The base is made of a material that can be attracted by a magnet, and each of the support columns is provided with a first magnetic attraction portion; or The base is provided with a second magnetic attraction portion; each of the support columns is made of a material that can be attracted by a magnet, and the position of the second magnetic attraction portion is changeable.

4. The positioning device according to claim 1, wherein: There are multiple support members, each of which is provided with at least one avoidance hole to form multiple support members with different structures. Each of the support members can be selectively assembled on the base.

5. The positioning device according to claim 4, wherein: The base is provided with a positioning portion, and each of the support members is provided with a positioning hole, and the positioning hole cooperates with the positioning portion to position the support member and the base relatively along the second direction and the first direction.

6. The positioning device according to claim 1, wherein: The third positioning member is slidably disposed on the base along a third direction; the third direction is perpendicular to the second direction and the first direction; the third positioning member is provided with a bearing surface, and the bearing surface is configured to support a diaphragm along the third direction; The positioning device further includes a third locking member, and the third positioning member is locked to the base through the third locking member.

7. The positioning device according to claim 6, wherein: The positioning device further includes a film pressing member, which is rotatably disposed on the third positioning member and can be rotated to press the film on the bearing surface.

8. The positioning device according to claim 6, wherein: The bearing surface is provided with a positioning pin, and the positioning pin is configured to pass through the hole of the diaphragm to position the diaphragm along the first direction and the second direction.

9. The positioning device according to claim 7, wherein: The positioning device also includes a correction part, which is rotatably arranged on the film pressing part and is configured to be able to rotate to fit with the supporting surface, and to be able to protrude to the side of the third positioning part toward the second positioning part to correct the step difference between the surface to be film-coated of the workpiece and the supporting surface.

10. The positioning device according to claim 9, wherein: The correction member is slidably arranged on the film pressing member along the second direction. The correction member is configured to fit with the supporting surface and can protrude to the side of the third positioning member facing the second positioning member to correct the step difference between the surface to be film-coated of the workpiece and the supporting surface.

11. The positioning device according to claim 9 or 10, characterized in that: The film pressing member rotates between a first position and a second position, and presses the film when in the first position, and is separated from the film when in the second position; The correction member moves between a third position and a fourth position, and is in contact with the bearing surface in the third position, and is separated from the bearing surface in the fourth position; When the film pressing member is located at the first position and / or the second position, it is positioned relative to the third positioning member through magnetic attraction; and / or When the correction member is in the third position, it is positioned relative to the bearing surface through magnetic attraction; and / or When the correction member is located at the fourth position, the correction member is positioned relative to the film pressing member through magnetic attraction.

12. The positioning device according to claim 6, wherein: The third locking member is threadedly connected to the third positioning member and is configured to move relative to the third positioning member in a direction intersecting the third direction until it abuts against the base when rotating; or The third locking member is threadedly connected to the base and is configured to move relative to the base along a direction intersecting the third direction when rotating until it abuts against the third positioning member.

13. The positioning device according to claim 6, wherein: The third locking member is rotatably connected to the base and is threadedly connected to the third positioning member along the third direction. The third locking member is configured to drive the third positioning member to move along the third direction and maintain a position when rotating.

14. The positioning device according to claim 6, wherein: The third locking member includes a first supporting member and a second supporting member, wherein the first supporting member and the second supporting member are rotatably connected to the base respectively; The first supporting member abuts against one end of the second supporting member. When the first supporting member rotates, it can drive the second supporting member to rotate until the other end of the second supporting member abuts against the third positioning member.

15. The positioning device according to claim 14, wherein: The first supporting member is a cam structure, and the rotation axis of the first supporting member is parallel to the rotation axis of the second supporting member; or The first supporting member is threadedly connected to the base, and the rotation axes of the first supporting member and the second supporting member are perpendicular.

16. The positioning device according to claim 6, wherein: The positioning device further includes a first elastic member, which is held between the third positioning member and the base and is configured to apply an elastic force to the third positioning member to move away from the base along the third direction.

17. The positioning device according to any one of claims 1 to 10 and 12 to 16, characterized in that: The first locking member includes a screw, a nut, and two connecting rods, wherein the screw is rotatably disposed on the base, and the nut is threadedly connected to the screw and moves along the first direction as the screw rotates; The two connecting rods are symmetrically and rotationally connected to opposite sides of the nut, and one end of each connecting rod away from the nut is rotationally connected to one of the first positioning members.

18. The positioning device according to claim 17, wherein: The positioning device further includes a guide assembly, the guide assembly including a guide rail and a plurality of sliders, the plurality of sliders being slidably disposed on the guide rail; The second positioning member and the nut are respectively connected to different sliding blocks.

19. The positioning device according to any one of claims 1 to 10 and 12 to 16, characterized in that: The first locking member includes two abutting members respectively disposed on both sides of the supporting member. Each of the abutting members is threadedly connected to the base and pushes one of the first positioning members along the second direction.

20. The positioning device according to any one of claims 1 to 10 and 12 to 16, characterized in that: The second locking member includes a locking member, a sliding shaft and a second elastic member, the sliding shaft is provided with a first stop portion, the second positioning member is provided with a through sliding hole, the inner wall of the sliding hole extends inwardly to form a second stop portion, and the sliding shaft is slidably disposed in the sliding hole; The second elastic member is disposed in the sliding hole, and two ends thereof are held between the first stop portion and the second stop portion; The locking member is rotatably connected to the sliding shaft and is stopped by one side of the second stop portion of the second positioning member; The first stop portion is configured to, when the locking member is rotated to the locking position, be pressed against the base in a direction intersecting with the sliding direction of the sliding shaft under the elastic force of the second elastic member; and the first stop portion is configured to, when the locking member is rotated to leave the locking position, move with the sliding shaft and disengage from the base.

21. The positioning device according to any one of claims 1 to 10 and 12 to 16, characterized in that: The positioning device also includes a bracket, which is slidably arranged on the base along the second direction and protrudes to both sides of the support member. The bracket is configured to support and drive a rolling member to move, and the rolling member is used to roll the diaphragm to adhere to the workpiece.

22. A film laminating device comprising a rolling element and a positioning device, wherein the positioning device is used to position a workpiece, and the rolling element is configured to roll a film onto the workpiece on the positioning device, characterized in that: The positioning device is the positioning device according to any one of claims 1 to 21.

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