Positioning mechanism and assembling device

Abstract

A positioning mechanism is used for positioning a magnetic workpiece, and the magnetic workpiece comprises a front face and a back face which are opposite in magnetism. The positioning mechanism comprises a supporting assembly which comprises a base and a cover plate, a containing space is formed between the base and the cover plate, and the cover plate is used for bearing a magnetic workpiece; the magnetic positioning part is arranged in the containing space, the structure and the magnetic setting of the magnetic positioning part are the same as those of the magnetic workpiece, and the magnetic positioning part attracts and positions the magnetic workpiece when the magnetic workpiece abuts against the positioning face. The assembling device is used for assembling the magnetic workpiece on the shell and comprises the positioning mechanism and the magnetic workpiece. The carrier plate is connected with the base, and a third positioning hole is formed in the carrier plate; and the positioning jig is used for positioning the shell, the positioning jig is provided with a plurality of second positioning pins, and the second positioning pins are inserted into the third positioning holes to position the carrier plate. The positioning mechanism and the assembling device are easy to assemble, convenient to use and high in positioning precision of the magnetic workpiece.

Description

Technical Field

[0001] The present application relates to the technical field of assembly mechanisms, and in particular to a positioning mechanism and an assembly device. Background Art

[0002] In the production and processing of electronic products such as tablet computers, it is necessary to assemble some magnetic parts inside the shell of the electronic products. Since the magnetic parts have positive and negative poles, during assembly, it is necessary not only to position the magnetic parts, but also to determine the positive and negative poles of the magnetic parts, so that the magnetic poles of the magnetic parts are connected to the shell in a predetermined direction. The positioning device currently used has a magnet inside, so that while positioning the magnetic parts, the magnetic poles of the magnetic parts are prevented from being fooled by the magnets. However, this method is only suitable for fool-proof positioning of a single magnetic part. When it is necessary to assemble a small structural part composed of multiple magnetic parts with different positive and negative poles, only using magnets for fool-proofing has many disadvantages. For example, it is necessary to install multiple magnets corresponding to the magnetic parts in the small structural part in the positioning device, which leads to high labor intensity for the operators. Since magnets attract opposites and repel likes, installation is difficult, and the accuracy of the magnet position is affected, which leads to low positioning of the magnetic parts. Utility Model Content

[0003] In view of the above, it is necessary to propose a positioning mechanism and an assembly device, wherein the positioning mechanism is simple to assemble, the assembly device is easy to use, and the positioning accuracy of the magnetic workpiece is high.

[0004] An embodiment of the present application provides a positioning mechanism for positioning a magnetic workpiece, wherein the magnetic workpiece includes a front side and a back side with opposite magnetism, and comprises: a supporting assembly, comprising a base and a cover plate connected to the base, wherein an accommodating space is formed between the base and the cover plate, and a positioning surface for supporting the magnetic workpiece is provided on a side of the cover plate facing away from the base; and a magnetic positioning member, which is arranged in the accommodating space and abuts against the base and the cover plate respectively, wherein the structure of the magnetic positioning member is the same as that of the magnetic workpiece, and the magnetic settings of the front and back sides of the magnetic positioning member are the same as those of the magnetic workpiece, and the magnetism of a side of the magnetic positioning member abutting against the cover plate is opposite to the magnetism of a side of the magnetic workpiece close to the magnetic positioning member, so that when the magnetic workpiece abuts against the positioning surface, the magnetic positioning member adsorbs the magnetic workpiece and positions the magnetic workpiece on the positioning surface.

[0005] The above positioning mechanism is provided with a supporting assembly, and the magnetic positioning member is fixed in the accommodating space and positioned by the base and cover plate in the supporting assembly. The structure of the magnetic positioning member is the same as that of the magnetic workpiece, and the magnetic setting of the front and back sides of the magnetic positioning member is the same as that of the magnetic workpiece. When the magnetic workpiece is placed on the positioning surface of the cover plate, if the magnetism of the side of the magnetic workpiece abutting the positioning surface is opposite to the magnetism of the side of the magnetic positioning member abutting the cover plate, the magnetic positioning member can adsorb the magnetic workpiece on the positioning surface to complete the positioning of the magnetic workpiece; if the magnetism of the side of the magnetic workpiece abutting the positioning surface is the same as the magnetism of the side of the magnetic positioning member abutting the cover plate, the magnetic positioning member repels the magnetic workpiece, and the magnetic workpiece cannot be adsorbed on the positioning surface at this time, which can play a foolproof effect. When installing the above positioning mechanism, it is only necessary to install the magnetic positioning member with the same structure as the magnetic workpiece in the accommodating space between the base and the cover plate, so that the positioning mechanism is simple to assemble and easy to use. The magnetic pole setting and structure of the magnetic positioning member and the magnetic workpiece are the same, so that the consistency of the position of the magnetic workpiece and the magnetic positioning member during positioning can be improved, and the positioning accuracy is high.

[0006] In some embodiments, the magnetic workpiece is provided with a plurality of first positioning holes, and the magnetic positioning member is provided with a plurality of second positioning holes, and the plurality of second positioning holes correspond one-to-one to the plurality of first positioning holes; the support assembly also includes a plurality of first positioning pins each connected to the base, and the plurality of first positioning pins correspond one-to-one to the plurality of second positioning holes, and each of the first positioning pins is inserted into the corresponding second positioning hole to position the magnetic positioning member, and the plurality of first positioning pins all penetrate the cover plate and protrude from the positioning surface, and the first positioning pins are inserted into the corresponding first positioning holes of the magnetic workpiece to position the magnetic workpiece.

[0007] In some embodiments, a receiving groove adapted to the shape of the magnetic positioning member is formed on one side of the cover plate facing the base, and the receiving space is formed between the receiving groove and the base, and the receiving groove is used to accommodate the magnetic positioning member.

[0008] In some embodiments, a plurality of magnetic protrusions are provided on one side of the magnetic positioning member abutting against the cover plate, and a plurality of grooves connected to the accommodating groove are provided at the bottom of the accommodating groove, and the plurality of grooves respectively correspond to the plurality of magnetic protrusions and are used to respectively accommodate the plurality of magnetic protrusions.

[0009] In some embodiments, a support portion is provided on a side of the base facing the cover plate, the support portion is used to support the magnetic positioning member, and the support portion is inserted into the accommodating groove when the base is connected to the cover plate.

[0010] In some embodiments, the cover plate is provided with a protrusion, and the protrusion protrudes from the positioning surface in a direction away from the base, so as to support the magnetic workpiece.

[0011] In some embodiments, a limiting groove is provided on one side of the protrusion for supporting the magnetic workpiece, and the limiting groove is used to accommodate the magnetic workpiece to position the magnetic workpiece.

[0012] In some embodiments, the magnetic workpiece is provided with a through groove running through the front and back surfaces of the magnetic workpiece, and the cover plate is provided with a limiting protrusion, the limiting protrusion is arranged on the positioning surface and connected to the groove wall of the limiting groove, and the limiting protrusion is used to be inserted into the through groove to position the magnetic workpiece.

[0013] The present application also provides an assembly device for assembling a magnetic workpiece to a shell, comprising: the above-mentioned positioning mechanism; a carrier plate connected to the side of the base in the positioning mechanism facing away from the cover plate, the carrier plate being used to support the positioning mechanism, the carrier plate being provided with a plurality of third positioning holes; and a positioning fixture for supporting and positioning the shell, the surface of the positioning fixture for supporting the shell being provided with a plurality of second positioning pins respectively corresponding to the third positioning holes, the plurality of second positioning pins being respectively inserted into the corresponding third positioning holes to position the carrier plate; wherein the carrier plate is used to drive the positioning mechanism to abut against the shell located in the positioning fixture under the drive of an external force, thereby assembling the magnetic workpiece to the shell.

[0014] In some embodiments, the assembly device also includes a plurality of limit members connected to the carrier, and the plurality of limit members and the positioning mechanism are arranged on the same side of the carrier. The limit members are used to abut against the shell when the carrier is assembled on the positioning fixture to limit the distance that the carrier moves toward the shell.

[0015] The above-mentioned assembly device uses the above-mentioned positioning mechanism to position the magnetic workpiece. Through the cooperation of the carrier plate and the positioning fixture, the magnetic workpiece can be assembled to the shell. It is easy to use and has high positioning accuracy for the magnetic workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the positioning mechanism provided in an embodiment of the present application.

[0017] Figure 2 for Figure 1 The shown schematic cross-sectional view of the positioning mechanism along the II-II direction.

[0018] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the positioning mechanism shown.

[0019] Figure 4 for Figure 1 A schematic diagram of the exploded structure of the positioning mechanism shown in another angle.

[0020] Figure 5 A schematic diagram of the structure of an assembly device provided in an embodiment of the present application.

[0021] Figure 6 for Figure 5 Schematic diagram of the exploded structure of the assembly device shown.

[0022] Main component symbols

[0023] Positioning mechanism 100

[0024] Support assembly 10

[0025] Base 11

[0026] Supporting portion 111

[0027] Cover 12

[0028] Positioning surface 121

[0029] Accommodating groove 122

[0030] Groove 1221

[0031] Raised portion 123

[0032] Limiting slot 124

[0033] Limiting protrusion 125

[0034] Accommodation space 13

[0035] First positioning pin 14

[0036] Magnetic positioning element 20

[0037] Second positioning hole 21

[0038] Magnetic protrusion 22

[0039] Magnetic workpiece 200

[0040] Front 201, 23

[0041] Reverse 202, 24

[0042] First positioning hole 203

[0043] Through slot 204

[0044] Assembly device 300

[0045] Carrier board 310

[0046] The third positioning hole 311

[0047] Positioning fixture 320

[0048] Second positioning pin 321

[0049] Limiting piece 330

[0050] Housing 400 DETAILED DESCRIPTION

[0051] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0052] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0053] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0054] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0055] See also Figure 1 and Figure 2 The present application embodiment provides a positioning mechanism 100 for positioning a magnetic workpiece 200, wherein the magnetic workpiece 200 includes a front side 201 and a back side 202 with opposite magnetic properties (see Figure 4). The magnetic workpiece 200 can be a sheet structure, the magnetic workpiece 200 can be a single magnet or a small structural part with a single magnet arranged inside, in which case the front side 201 of the magnetic workpiece 200 is an S pole or an N pole, and the back side 202 is an N pole or an S pole opposite to the front side 201. The magnetic workpiece 200 can also be a combination of multiple magnets, such as a sheet support body having multiple magnet blocks arranged at intervals inside, and the magnetic poles of the multiple magnet blocks can remain consistent, such as the front side 201 of the magnetic workpiece 200 is all S poles or N poles, and the back side 202 is all N poles or S poles opposite to the front side 201; or the magnetic poles on the same side are not completely the same, such as the front side 201 of the magnetic workpiece 200 has some magnets as S poles or N poles, and the back side 202 has some magnets as corresponding N poles or S poles. The specific structure of the magnetic workpiece 200 is subject to actual needs and is not limited here. The positioning mechanism 100 includes a support assembly 10 and a magnetic positioning member 20.

[0056] Specifically, see Figure 1 , Figure 2 and Figure 3 The support assembly 10 includes a base 11 and a cover plate 12 connected to the base 11, an accommodating space 13 is formed between the base 11 and the cover plate 12, and a positioning surface 121 for carrying the magnetic workpiece 200 is provided on the side of the cover plate 12 away from the base 11. The base 11 can be a block structure to provide a stable support. The cover plate 12 is detachably connected to the base 11, for example, by bolts, etc. When the cover plate 12 is connected to the base 11, an accommodating space 13 exists between the cover plate 12 and the base 11.

[0057] Please also see Figure 4The magnetic positioning member 20 is arranged in the accommodating space 13 and abuts against the base 11 and the cover plate 12 respectively. The structure of the magnetic positioning member 20 is the same as that of the magnetic workpiece 200, and the magnetism of the front surface 23 and the back surface 24 of the magnetic positioning member 20 is the same as that of the magnetic workpiece 200. The magnetism of the side of the magnetic positioning member 20 abutting against the cover plate 12 is opposite to the magnetism of the side of the magnetic workpiece 200 close to the magnetic positioning member 20, so that when the magnetic workpiece 200 abuts against the positioning surface 121, the magnetic positioning member 20 absorbs the magnetic workpiece 200 and positions the magnetic workpiece 200 on the positioning surface 121. It can be understood that the magnetic positioning member 20 can be replaced by the magnetic workpiece 200, so that the magnetic positioning member 20 and the magnetic workpiece 200 can maintain the same structure and magnetic pole. At the same time, there is no need to process the magnetic positioning member 20 separately, which is conducive to reducing production costs. Further, when positioning different magnetic workpieces 200, the corresponding magnetic positioning member 20 can be installed to position the magnetic workpiece 200, thereby improving the applicability of the positioning mechanism 100. It can be understood that when positioning the magnetic workpiece 200, in order to make the front side 201 of the positioned magnetic workpiece 200 face upward, when installing the magnetic positioning member 20, the front side 23 of the magnetic positioning member 20 is kept facing the cover plate 12, so that when positioning, according to the principle of opposites attract, the front side 23 of the magnetic positioning member 20 can adsorb the back side 202 of the magnetic workpiece 200, thereby making the front side 201 of the magnetic workpiece 200 face upward. In other embodiments, in order to make the back side 202 of the magnetic workpiece 200 face upward, when installing the magnetic positioning member 20, the back side 24 of the magnetic positioning member 20 is set toward the cover plate 12, so that when positioning, according to the principle of opposites attract, the back side 24 of the magnetic positioning member 20 can adsorb the front side 201 of the magnetic workpiece 200, thereby making the back side 202 of the magnetic workpiece 200 face upward.

[0058] The positioning mechanism 100 provided in the embodiment of the present application is provided with a supporting assembly 10, and the magnetic positioning member 20 is fixed in the accommodating space 13 and positioned by the base 11 and the cover plate 12 in the supporting assembly 10. The structure of the magnetic positioning member 20 is the same as that of the magnetic workpiece 200, and the magnetic setting of the front surface 23 and the back surface 24 of the magnetic positioning member 20 is the same as that of the magnetic workpiece 200. When the magnetic workpiece 200 is placed on the positioning surface 121 of the cover plate 12, if the magnetic workpiece 200 abuts against the positioning surface If the magnetism of one side of the magnetic positioning member 20 abutting the cover plate 12 is opposite to the magnetism of one side of the magnetic positioning member 20 abutting the cover plate 12, the magnetic positioning member 20 can adsorb the magnetic workpiece 200 on the positioning surface 121 to complete the positioning of the magnetic workpiece 2002. If the magnetism of one side of the magnetic workpiece 200 abutting the positioning surface 121 is the same as the magnetism of one side of the magnetic positioning member 20 abutting the cover plate 12, the magnetic positioning member 20 repels the magnetic workpiece 200. At this time, the magnetic workpiece 200 cannot be adsorbed on the positioning surface 121, which can play a foolproof effect. When installing the positioning mechanism 100 provided in the embodiment of the present application, it is only necessary to install the magnetic positioning member 20 having the same structure as the magnetic workpiece 200 in the accommodating space 13 between the base 11 and the cover plate 12, so that the positioning mechanism 100 is simple to assemble and easy to use. The magnetic pole setting and structure of the magnetic positioning member 20 and the magnetic workpiece 20 are the same, so that the consistency of the position of the magnetic workpiece 200 and the magnetic positioning member 20 during positioning can be improved, and the positioning accuracy is high.

[0059] In some embodiments, see Figure 1 and Figure 3, the magnetic workpiece 200 is provided with a plurality of first positioning holes 203, and the magnetic positioning member 20 is provided with a plurality of second positioning holes 21, and the plurality of second positioning holes 21 correspond to the plurality of first positioning holes 203 one by one. The support assembly 10 further includes a plurality of first positioning pins 14 connected to the base 11, and the plurality of first positioning pins 14 correspond to the plurality of second positioning holes 21 one by one, and each first positioning pin 14 is inserted into the corresponding second positioning hole 21 to position the magnetic positioning member 20, and the plurality of first positioning pins 14 penetrate the cover plate 12 and protrude from the positioning surface 121, and the first positioning pins 14 are inserted into the first positioning holes 203 corresponding to the magnetic workpiece 200 to position the magnetic workpiece 200. The magnetic workpiece 200 may have a plurality of first positioning holes 203, such as two or three, and the number, structure and position of the second positioning holes 21 on the magnetic positioning member 20 are consistent with the first positioning holes 203 on the magnetic workpiece 200. The number of the first positioning pins 14 is consistent with the number of the first positioning holes 203, and the first positioning pins 14 may be a columnar structure. It can be understood that the first positioning pin 14 is fixedly connected to the base 11. When the magnetic positioning member 20 is installed, the first positioning pin 14 is inserted into the second positioning hole 21 to position the magnetic positioning member 20. When the cover plate 12 is installed, the first positioning pin 14 passes through the cover plate 12. It can be understood that a corresponding hole is provided on the cover plate 12 so that the first positioning pin 14 can pass through the cover plate 12. The first positioning pin 14 protrudes from the positioning surface 121. When the magnetic workpiece 200 is placed, the magnetic workpiece 200 can be positioned by inserting the first positioning pin 14 into the first positioning hole 203, thereby improving the accuracy of positioning the magnetic workpiece 200.

[0060] In some embodiments, see Figure 2 and Figure 4 The cover plate 12 is provided with a receiving groove 122 on one side facing the base 11, which is adapted to the shape of the magnetic positioning member 20. An accommodating space 13 is formed between the receiving groove 122 and the base 11. The receiving groove 122 is used to accommodate the magnetic positioning member 20. By providing the receiving groove 122, the magnetic positioning member 20 can be accommodated, and the side wall of the magnetic positioning member 20 can be restricted, thereby improving the stability of the magnetic positioning member 20 and the accuracy of the position of the magnetic positioning member 20, thereby improving the accuracy of positioning the magnetic workpiece 200.

[0061] In some embodiments, see Figure 2 and Figure 4, a plurality of magnetic protrusions 22 are provided on the side where the magnetic positioning member 20 abuts against the cover plate 12, and a plurality of grooves 1221 connected to the receiving groove 122 are provided at the bottom of the receiving groove 122, and the plurality of grooves 1221 correspond to the plurality of magnetic protrusions 22 respectively, and are used to accommodate the plurality of magnetic protrusions 22 respectively. In this way, by providing the grooves 1221, the magnetic protrusions 22 can be accommodated, so as to prevent the cover plate 12 from squeezing the magnetic protrusions 22 and thus damaging the magnetic protrusions 22. The magnetic protrusions 22 on the magnetic positioning member 20 can be provided with two, four, eight, etc., and the specific number is subject to actual needs and is not limited here. The number of grooves 1221 can be the same as the number of magnetic protrusions 22, so that each groove 1221 corresponds to accommodating one magnetic protrusion 22, and the number of grooves 1221 can also be less than the number of magnetic protrusions 22, such as each groove 1221 accommodating two, three, etc. magnetic protrusions 22.

[0062] In some embodiments, see Figure 1 and Figure 3 The base 11 is provided with a support portion 111 on one side facing the cover 12. The support portion 111 is used to support the magnetic positioning member 20. The support portion 111 is inserted into the receiving groove 122 when the base 11 is connected to the cover 12. In this way, the stability of the connection between the base 11 and the cover 12 can be improved.

[0063] In some embodiments, see Figure 1 and Figure 3 , the cover plate 12 is provided with a protrusion 123, which protrudes from the positioning surface 121 in a direction away from the base 11, so as to carry the magnetic workpiece 200. It can be understood that the cover plate 12 is provided with a receiving groove 122 for accommodating the magnetic positioning member 20, and the area of ​​the positioning surface 121 on the cover plate 12 is larger than the cross-sectional area of ​​the receiving groove 122, that is, the area of ​​the positioning surface 121 is larger than the area of ​​the magnetic workpiece 200. The magnetic workpiece 200 positioned by the positioning mechanism 100 needs to be installed on other structures such as the housing 400 (see Figure 5 ), therefore, it is necessary to avoid the external structures such as the frame of the shell 400, that is, the closer the area of ​​the structure for supporting the magnetic workpiece 200 is to the area of ​​the magnetic workpiece 200, the stronger the applicability. By setting the protrusion 123, the magnetic workpiece 200 can be supported, and the area of ​​the protrusion 123 is smaller than the area of ​​the positioning surface 121, which is convenient for avoiding other structures, thereby improving applicability.

[0064] In some embodiments, see Figure 1 and Figure 3The protrusion 123 is used to support the magnetic workpiece 200, and a limiting groove 124 is provided on one side thereof. The limiting groove 124 is used to accommodate the magnetic workpiece 200 to position the magnetic workpiece 200. By providing the limiting groove 124, the magnetic workpiece 200 can be preliminarily positioned, and the magnetic workpiece 200 can be accurately positioned in cooperation with the first positioning pin 14. The magnetic positioning member 20 can be foolproof and adsorb the magnetic workpiece 200. By providing the limiting groove 124, it is convenient to quickly find the position of the magnetic workpiece 200, and it is convenient to quickly position the magnetic workpiece 200.

[0065] In some embodiments, see Figure 1 , Figure 3 and Figure 4 The magnetic workpiece 200 is provided with a through slot 204 that passes through the front side 201 and the back side 202 of the magnetic workpiece 200. The cover plate 12 is provided with a limiting protrusion 125. The limiting protrusion 125 is provided on the positioning surface 121 and connected to the groove wall of the limiting groove 124. The limiting protrusion 125 is used to be inserted into the through slot 204 to position the magnetic workpiece 200. By providing the limiting protrusion 125, the magnetic workpiece 200 can be positioned in conjunction with the through slot 204 on the magnetic workpiece 200, thereby further improving the accuracy of positioning the magnetic workpiece 200.

[0066] In one embodiment, the base 11 is made of a magnetic material so that the magnetic positioning member 20 can adsorb the base 11 when it is located in the accommodating space 13, and the cover 12 is made of a non-magnetic material. The base 11 can be made of a magnetic material such as iron that can be adsorbed by a magnet, so that the magnetic positioning member 20 can be adsorbed on the base 11, thereby improving the stability of the magnetic positioning member 20, and further improving the stability of the magnetic positioning member 20 when positioning the magnetic workpiece 200. The cover 12 can be made of plastic, non-magnetic stainless steel, etc., so that the magnetic workpiece 200 can be prevented from adsorbing the cover 12, resulting in the magnetic positioning member 20 not being able to play a fool-proofing effect, or making it difficult to remove the magnetic workpiece 200 from the cover 12.

[0067] The working process of the positioning mechanism 100 provided in the embodiment of the present application is roughly as follows:

[0068] First, when assembling the positioning mechanism 100, a magnetic positioning member 20 having the same structure as the magnetic workpiece 200 to be positioned is selected, the magnetic positioning member 20 is installed on the base 11 and positioned by the first positioning pin 14, and then the cover plate 12 is covered on the magnetic positioning member 20 and connected to the base 11, and the receiving groove 122 in the cover plate 12 accommodates the magnetic positioning member 20 for positioning the magnetic positioning member 20. In this way, the assembly of the positioning mechanism 100 is completed. It should be noted that if the front side 201 of the magnetic workpiece 200 needs to be facing upward when positioning the magnetic workpiece 200, the side of the magnetic positioning member 20 corresponding to the front side 201 of the magnetic workpiece 200 is abutted against the cover plate 12 when the magnetic positioning member 20 is installed. If the reverse side 202 of the magnetic workpiece 200 needs to be facing upward when positioning the magnetic workpiece 200, the side of the magnetic positioning member 20 corresponding to the reverse side 202 of the magnetic workpiece 200 is abutted against the cover plate 12 when the magnetic positioning member 20 is installed.

[0069] When positioning the workpiece, the workpiece is placed in the limiting groove 124, and the first positioning pin 14 is inserted into the first positioning hole 203, and the limiting protrusion 125 is inserted into the through groove 204 to position the magnetic workpiece 200. At this time, if the magnetic pole directions of the magnetic workpiece 200 and the magnetic positioning member 20 are inconsistent, the magnetic positioning member 20 repels the magnetic workpiece 200 to achieve a foolproof effect; if the magnetic pole directions of the magnetic workpiece 200 and the magnetic positioning member 20 are consistent, the magnetic positioning member 20 can adsorb the magnetic workpiece 200 on the positioning surface 121 to position the magnetic workpiece 200.

[0070] See also Figure 5 and Figure 6 The present application also provides an assembly device 300 for assembling the magnetic workpiece 200 in a housing 400 , which may be a rear housing of an electronic product such as a tablet. The assembly device 300 includes the above-mentioned positioning mechanism 100 , a carrier plate 310 and a positioning fixture 320 .

[0071] The positioning mechanism 100 is used to position the magnetic workpiece 200 .

[0072] The carrier plate 310 is connected to the side of the base 11 in the positioning mechanism 100 away from the cover plate 12. The carrier plate 310 is used to carry the positioning mechanism 100. The carrier plate 310 is provided with a plurality of third positioning holes 311. The carrier plate 310 may be a plate-like structure to facilitate carrying the positioning mechanism 100. It is understood that, according to the design requirements of the product, a plurality of positioning mechanisms 100 may be provided on the carrier plate 310 to simultaneously install a plurality of magnetic workpieces 200.

[0073] The positioning jig 320 is used to carry and position the housing 400. The surface of the positioning jig 320 used to carry the housing 400 is provided with a plurality of second positioning pins 321 corresponding to the third positioning holes 311, respectively. The plurality of second positioning pins 321 are respectively inserted into the corresponding third positioning holes 311 to position the carrier 310. The carrier 310 is used to drive the positioning mechanism 100 to abut against the housing 400 located in the positioning jig 320 under the drive of an external force, and then assemble the magnetic workpiece 200 to the housing 400. It can be understood that the positioning jig 320 can position the housing 400 so as to facilitate the assembly of the magnetic workpiece 200 to the housing 400. The position corresponding to the magnetic workpiece 200 in the housing 400 can be pre-coated with glue to bond the magnetic workpiece 200 to the housing 400. Alternatively, glue is pre-coated on one side of the magnetic workpiece 200 used to abut against the housing 400 to bond the magnetic workpiece 200 to the housing 400. When driving the carrier 310 to move, the carrier 310 can be manually held, or connected to a driving mechanism (not shown) such as a robot, etc., to provide external force to drive the carrier 310 to be placed on the housing 400 positioned by the positioning fixture 320.

[0074] The above-mentioned assembly device 300 uses the above-mentioned positioning mechanism 100 to position the magnetic workpiece 200. Through the cooperation of the carrier plate 310 and the positioning fixture 320, the magnetic workpiece 200 can be assembled to the housing 400, and the positioning accuracy of the magnetic workpiece 200 is high.

[0075] In some embodiments, see Figure 5 and Figure 6 The assembly device 300 further includes a plurality of stoppers 330 connected to the carrier 310. The plurality of stoppers 330 and the positioning mechanism 100 are disposed on the same side of the carrier 310. The stoppers 330 are used to abut against the housing 400 when the carrier 310 is assembled on the positioning fixture 320, so as to limit the distance that the carrier 310 moves toward the housing 400. The stoppers 330 may be a block structure, and are used to abut against the housing 400 when the carrier 310 is assembled on the positioning fixture 320, so as to prevent the carrier 310 from excessively moving toward the housing 400, causing the positioning mechanism 100 to over-press the magnetic workpiece 200, and thus causing poor assembly.

[0076] The working process of the assembly device 300 provided in the embodiment of the present application is roughly as follows:

[0077] First, the magnetic workpiece 200 is positioned by the positioning mechanism 100, and the housing 400 is positioned by the positioning fixture 320. Before assembling the magnetic workpiece 200, glue can be pre-coated at a position corresponding to the magnetic workpiece 200 in the housing 400, or glue can be pre-coated on the side of the magnetic workpiece 200 that is used to abut the housing 400. Then, the carrier plate 310 is covered on the positioning fixture 320, and the carrier plate 310 is positioned by the third positioning hole 311 in conjunction with the second positioning pin 321 on the positioning fixture 320, and the positioning mechanism 100 is set toward the housing 400 so that the magnetic workpiece 200 corresponds to the housing 400. Then, the carrier plate 310 is further moved toward the housing 400 so that the positioning mechanism 100 presses the magnetic workpiece 200 on the housing 400, thereby assembling the magnetic workpiece 200 and the housing 400 together.

[0078] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A positioning mechanism for positioning a magnetic workpiece, wherein the magnetic workpiece comprises a front side and a back side with opposite magnetic properties, characterized in that: include: A support assembly, comprising a base and a cover plate connected to the base, an accommodating space is formed between the base and the cover plate, and a positioning surface for carrying the magnetic workpiece is provided on a side of the cover plate away from the base; and A magnetic positioning member is arranged in the accommodating space and abuts against the base and the cover plate respectively. The structure of the magnetic positioning member is the same as that of the magnetic workpiece, and the magnetic settings of the front and back surfaces of the magnetic positioning member are the same as those of the magnetic workpiece. The magnetism of a side of the magnetic positioning member abutting against the cover plate is opposite to the magnetism of a side of the magnetic workpiece close to the magnetic positioning member, so that when the magnetic workpiece abuts against the positioning surface, the magnetic positioning member adsorbs the magnetic workpiece and positions the magnetic workpiece on the positioning surface.

2. The positioning mechanism according to claim 1, characterized in that: The magnetic workpiece is provided with a plurality of first positioning holes, the magnetic positioning member is provided with a plurality of second positioning holes, and the plurality of second positioning holes correspond to the plurality of first positioning holes one by one; The support assembly also includes a plurality of first positioning pins connected to the base, the plurality of first positioning pins correspond one-to-one to the plurality of second positioning holes, each of the first positioning pins is inserted into the corresponding second positioning hole to position the magnetic positioning member, the plurality of first positioning pins all penetrate the cover plate and protrude from the positioning surface, and the first positioning pins are inserted into the corresponding first positioning holes of the magnetic workpiece to position the magnetic workpiece.

3. The positioning mechanism according to claim 1, characterized in that: A receiving groove matched with the shape of the magnetic positioning member is formed on one side of the cover plate facing the base, and the receiving space is formed between the receiving groove and the base, and the receiving groove is used to accommodate the magnetic positioning member.

4. The positioning mechanism according to claim 3, characterized in that: A plurality of magnetic protrusions are arranged on one side of the magnetic positioning member abutting against the cover plate, and a plurality of grooves connected to the accommodating groove are arranged at the bottom of the accommodating groove, and the plurality of grooves respectively correspond to the plurality of magnetic protrusions and are used to respectively accommodate the plurality of magnetic protrusions.

5. The positioning mechanism according to claim 3, characterized in that: A support portion is provided on one side of the base facing the cover plate, and the support portion is used to support the magnetic positioning member. The support portion is inserted into the accommodating groove when the base is connected to the cover plate.

6. The positioning mechanism according to claim 1, characterized in that: The cover plate is provided with a protrusion, and the protrusion protrudes from the positioning surface in a direction away from the base, so as to be used for carrying the magnetic workpiece.

7. The positioning mechanism according to claim 6, characterized in that: A limiting groove is arranged on one side of the protruding portion for supporting the magnetic workpiece, and the limiting groove is used to accommodate the magnetic workpiece to position the magnetic workpiece.

8. The positioning mechanism according to claim 7, characterized in that: The magnetic workpiece is provided with a through groove which passes through the front and back surfaces of the magnetic workpiece, and the cover plate is provided with a limiting protrusion, which is arranged on the positioning surface and connected to the groove wall of the limiting groove, and the limiting protrusion is used to be inserted into the through groove to position the magnetic workpiece.

9. An assembly device for assembling a magnetic workpiece to a housing, characterized in that: include: The positioning mechanism according to any one of claims 1 to 8; A carrier plate connected to a side of the base in the positioning mechanism away from the cover plate, the carrier plate being used to carry the positioning mechanism, and the carrier plate being provided with a plurality of third positioning holes; and A positioning fixture is used to carry and position the shell, and a surface of the positioning fixture used to carry the shell is provided with a plurality of second positioning pins respectively corresponding to the third positioning holes, and the plurality of second positioning pins are respectively inserted into the corresponding third positioning holes to position the carrier; wherein, The carrier plate is used to drive the positioning mechanism to abut against the shell in the positioning fixture under the driving of external force, thereby assembling the magnetic workpiece on the shell.

10. The assembly device according to claim 9, characterized in that The assembly device also includes a plurality of limit members connected to the carrier, wherein the plurality of limit members and the positioning mechanism are arranged on the same side of the carrier, and the limit members are used to abut against the shell when the carrier is assembled on the positioning fixture to limit the distance that the carrier moves toward the shell.

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