Positioning jig and processing machine table

Abstract

The utility model provides a positioning jig and a machining machine table, the positioning jig is used for positioning a product, the front face of the product is provided with a containing groove, the back face of the product is provided with a protrusion, and the protrusion is provided with a through hole. The positioning jig comprises a base and a cover plate, a notch is formed in the base, a first supporting face is arranged outside the notch of the base, a second supporting face is arranged in the notch of the base, a positioning pin is arranged on the first supporting face, and a supporting pin is arranged on the second supporting face. The cover plate is arranged in the containing groove and provided with a positioning hole, and the positioning hole is used for containing the positioning pin so as to position the cover plate and the base. When the product is positioned with the front face facing upwards, the notch accommodates the protrusion, the first supporting face supports the back face of the product, the second supporting face supports the protrusion, the supporting pin is located in the through hole, and the positioning pin is located in the positioning hole. When the product is positioned with the back face facing upwards, the cover plate is supported by the first supporting face and the supporting pin, and the positioning pin is located in the positioning hole. The positioning jig can support both the front face and the back face of the product, and two traditional jigs are replaced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automation processing, in particular to a positioning jig and a processing machine. BACKGROUND

[0002] In the production process of electronic devices, the front and back of the parts product usually need to be processed. For example, in the polishing process of the frame parts product of a mobile phone, the front and back of the product need to be polished respectively. The front of the product is relatively flat, but the back of the product has a protrusion at the camera position, resulting in unevenness of the back. Therefore, two jigs are usually used to support the front and back of the product respectively. The first jig has a relatively flat supporting surface to support the front of the product with the back facing up, and the second jig has a gap to avoid the protrusion of the back to support the back of the product with the front facing up. When polishing, the product is first positioned on the first jig and the back is polished, and then the product is positioned on the second jig and the front is polished.

[0003] However, this way of polishing the product has the problem that the two jigs are not universal. Because the first jig has no gap and will interfere with the protrusion of the back of the product, the first jig cannot support the back of the product. And when the gap of the second jig is not filled, the product is easy to be tilted, so the second jig cannot support the front of the product. Therefore, by the above-mentioned way of polishing the product, two jigs need to be designed and produced at the same time, resulting in increased cost and low efficiency. CONTENT OF THE INVENTION

[0004] Therefore, the present application provides a positioning jig that can support both the front and back of the product, and a processing machine with the positioning jig, to reduce cost and improve efficiency.

[0005] In an embodiment of the present application, a positioning jig is provided for positioning a product. The front of the product has a receiving groove, and the back of the product has a protrusion with a through hole. The positioning jig includes a base and a cover plate. The base has a gap, the base has a first supporting surface outside the gap, and the base has a second supporting surface inside the gap. The first supporting surface is provided with a positioning pin, and the second supporting surface is provided with a supporting pin. The cover plate is used to be placed in the receiving groove, and the cover plate has a positioning hole for accommodating the positioning pin to position the cover plate and the base. When the product is positioned with the front facing up, the gap accommodates the protrusion, the first supporting surface supports the back of the product, the second supporting surface supports the protrusion, the supporting pin is located in the through hole, and the positioning pin is located in the positioning hole. When the product is positioned with the back facing up, the first supporting surface and the supporting pin support the cover plate, and the positioning pin is located in the positioning hole.

[0006] In use, when the front of the product needs to be processed, the positioning jig accommodates the protrusion through the gap, so that the protrusion on the back of the product does not interfere with the base. The positioning jig supports the back of the product through the first support surface and supports the protrusion through the second support surface, so that the base can stably support the back of the product. The positioning jig accommodates the support pin in the through hole, so that the support pin does not interfere with the product. The positioning jig accommodates the positioning pin in the positioning hole, so that the cover plate cannot slide relative to the base. Since the cover plate is placed in the accommodation groove of the product, the product also cannot slide relative to the base. Thus, the product is positioned with the front facing upward, so that the front of the product can be processed.

[0007] When the back of the product needs to be processed, the positioning jig supports the cover plate through the first support surface and the support pin, so that the cover plate and the product cannot be tilted and raised. Since the support pin can compensate for the defect that the gap is not filled by the protrusion, the cover plate can be supported at the gap. Thus, the cover plate and the product cannot be tilted and raised relative to the base. The positioning jig accommodates the positioning pin in the positioning hole, so that the cover plate and the product cannot slide relative to the base. Thus, the product is positioned with the back facing upward, so that the back of the product can be processed.

[0008] In summary, the positioning jig can support both the front and the back of the product, replacing the two jigs used in the related art. The production quantity of the jigs is reduced, the production cost is reduced, and the production efficiency is improved.

[0009] In some embodiments, the cover plate is provided with a first magnetic member. The positioning jig further includes a moving member and a second magnetic member. The moving member is located on the side of the first support surface away from the cover plate. The second magnetic member is provided on the moving member. The moving member can move relative to the base between a magnetic attraction position and a disengagement position. The moving member is closer to the cover plate at the magnetic attraction position than at the disengagement position. When the product is positioned with the back facing upward, the moving member moves to the magnetic attraction position, and the first magnetic member is magnetically attracted by the second magnetic member. When the product is positioned with the front facing upward, the moving member moves to the disengagement position, and the first magnetic member is free from magnetic repulsion by the second magnetic member.

[0010] In some embodiments, the moving member has a boss, and the second magnetic member is provided on the top of the boss. The base is provided with an avoidance hole for accommodating the boss. When the moving member moves to the magnetic attraction position, the boss is located in the avoidance hole, so that the second magnetic member is close to the first magnetic member.

[0011] In some embodiments, the cross-sectional area of the boss and the avoidance hole gradually increases from the disengagement position to the magnetic attraction position.

[0012] In some embodiments, the moving member has a guide hole, and the positioning jig further includes a guide column. The position of the guide column relative to the base is fixed. The guide column passes through the guide hole to guide the movement of the moving member between the magnetic attraction position and the disengagement position.

[0013] In some embodiments, the positioning fixture further includes a bracket and a driver. The base and the driver are disposed on the bracket. The driver is connected to the movable member and is used to drive the movable member to move. The driver can adjust the position of the movable member relative to the bracket along the moving direction of the movable member, so as to adjust the magnetic attraction position and disengagement position of the movable member relative to the base.

[0014] In some embodiments, the bracket is provided with an adjustment hole that extends along the moving direction of the moving member, the driver is provided with a mounting hole that is aligned with any position of the adjustment hole, and the positioning fixture further includes a locking member that includes a connected rod and a clamping part. One end of the rod away from the clamping part passes through the adjustment hole and extends into the mounting hole to connect the driver, so that the driver and the clamping part clamp the bracket to fix the driver to the bracket.

[0015] In some embodiments, the cover plate has an annular convex wall that surrounds to form a limiting groove. When the product is positioned with its back facing up, a support pin extends into the limiting groove and abuts against the groove wall to support the cover plate.

[0016] In some embodiments, the locating pin includes a first pin and a second pin, the first pin having a first cross-sectional profile of a first shape and the second pin having a second cross-sectional profile of a second shape, and the locating hole includes a first hole and a second hole, the first hole having a first cross-sectional profile of a first shape and being used to receive the first pin, the first hole penetrating the edge of the cover plate, and the second hole having a second cross-sectional profile of a second shape and being used to receive the second pin.

[0017] In one embodiment of this application, a processing machine is also provided, including a processing mechanism, a flipping mechanism, and a positioning fixture as described in any of the above embodiments. The processing mechanism is used to process the front and back sides of the product, and the flipping mechanism is used to grip the cover plate and the product on the base and flip the cover plate and the product over. Attached Figure Description

[0018] Figure 1 The perspective view of the positioning fixture provided in this application shows an exploded view of the product being positioned with its back facing up.

[0019] Figure 2 for Figure 1 The three-dimensional view of another state of the positioning fixture shows an exploded view of the product being positioned face up.

[0020] Figure 3 for Figure 1 The cross-sectional view of the positioning fixture shows the product positioned with its back facing up.

[0021] Figure 4 for Figure 2 The cross-sectional view of the positioning fixture shows the product positioned with its front facing up.

[0022] Figure 5 forFigure 1 FIG. 6 is an exploded view of the positioning fixture of FIG. 5 with a portion of the cover removed.

[0023] Figure 6 FIG. 7 is a perspective view of a cover being positioned on a base in accordance with some embodiments of the present application. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0025] It should be noted that when one component is considered to be "connected to", "disposed on", "fixed to" another component, it can be directly connected to the other component or there can be a component disposed in between. The terms "mounting", "connecting", "fixing" and the like should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrally connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. The meaning of the term "multiple" is two or more, unless otherwise explicitly specified. The shape descriptions such as length, thickness, width, etc. in the present application are only exemplary descriptions, and should not constitute any absolute limitation on the present application. The terms "including", "having" and "provided with" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion.

[0026] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. Various embodiments of the present application can be combined with each other, provided that there is no conflict.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0028] The technical solutions of the present application will be described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application. Figures 1 to 6 Some embodiments of the present application will be described in detail below. The following embodiments and features in the embodiments can be combined with each other, provided that there is no conflict.

[0029] For the convenience of describing the technical solutions in the present application, the upward and downward directions as shown in the figures are defined, wherein the upward direction refers to the direction close to the anti-gravity direction, and the downward direction refers to the direction close to the gravity direction.

[0030] Some embodiments of the present application provide a positioning jig 100, as shown in Figure 1 and Figure 2 The positioning jig 100 is used to position a product 200 and can position the product 200 with the front face upward or the back face upward, so as to process the front face and the back face of the product 200, respectively. The front face of the product 200 has a receiving groove 201, and the back face of the product 200 has a protrusion 202 provided with a through hole 203. Exemplarily, the product 200 is a frame component of an electronic device such as a mobile phone, the receiving groove 201 is a space of the frame component for accommodating a mainboard or a battery, the protrusion 202 is a protruding structure of the frame component at a rear camera of the mobile phone, and the through hole 203 is a space of the frame component for accommodating a rear lens of the mobile phone. The front face of the product 200 refers to the side of the frame component facing the screen of the mobile phone, and the back face of the product 200 refers to the side of the frame component facing the rear camera of the mobile phone. The required processing operation of the front face and the back face of the product 200 is polishing processing, such as chamfering or rounding of the product 200.

[0031] As shown in Figures 1-4 The positioning jig 100 includes a base 10 and a cover plate 20. The base 10 is provided with a notch 11, and the base 10 has a first support surface 12 outside the notch 11 and a second support surface 13 inside the notch 11. The base 10 is provided with a positioning pin 14 on the first support surface 12 and a support pin 15 on the second support surface 13. The cover plate 20 is placed in the receiving groove 201 of the product 200, and the cover plate 20 has a positioning hole 21 for accommodating the positioning pin 14 to position the cover plate 20 and the base 10.

[0032] In the use process of the positioning jig 100, when the front face of the product 200 needs to be processed, as shown in Figure 2 and Figure 4As shown in FIG. 1, the product 200 needs to be positioned with the front face upward (i.e., the back face downward), at this time, the base 10 supports the back face of the product 200, wherein the gap 11 accommodates the protrusion 202, so that the protrusion 202 does not interfere with the base 10; the first support surface 12 supports the back face of the product 200, and the second support surface 13 supports the protrusion 202, so that the base 10 can stably support the back face of the product 200; the support pin 15 is located in the through hole 203, so that the support pin 15 does not interfere with the product 200; the positioning pin 14 is located in the positioning hole 21, so that the cover plate 20 does not slip relative to the base 10, and since the cover plate 20 is placed in the accommodation groove 201, the product 200 also does not slip relative to the base 10, thereby achieving positioning of the product 200 with the front face upward, so as to process the front face of the product 200.

[0033] As shown in FIG. 2, when the back face of the product 200 needs to be processed, the product 200 needs to be positioned with the back face upward (i.e., the front face downward), at this time, the base 10 supports the product 200 through the cover plate 20, wherein the first support surface 12 and the support pin 15 jointly support the cover plate 20, so that the cover plate 20 and the product 200 do not tilt and rise, because at this time the support pin 15 can make up for the defect that the gap 11 is not filled by the protrusion 202, so that the cover plate 20 can be supported at the gap 11, preventing the cover plate 20 from sinking into the gap 11, so that the cover plate 20 and the product 200 do not tilt and rise relative to the base 10; the positioning pin 14 is located in the positioning hole 21, so that the cover plate 10 and the product 200 do not slip relative to the base 100, thereby achieving positioning of the product 200 with the back face upward, so as to process the back face of the product 200. Figure 1 Figure 3 As shown in FIG. 2, when the back face of the product 200 needs to be processed, the product 200 needs to be positioned with the back face upward (i.e., the front face downward), at this time, the base 10 supports the product 200 through the cover plate 20, wherein the first support surface 12 and the support pin 15 jointly support the cover plate 20, so that the cover plate 20 and the product 200 do not tilt and rise, because at this time the support pin 15 can make up for the defect that the gap 11 is not filled by the protrusion 202, so that the cover plate 20 can be supported at the gap 11, preventing the cover plate 20 from sinking into the gap 11, so that the cover plate 20 and the product 200 do not tilt and rise relative to the base 10; the positioning pin 14 is located in the positioning hole 21, so that the cover plate 10 and the product 200 do not slip relative to the base 100, thereby achieving positioning of the product 200 with the back face upward, so as to process the back face of the product 200.

[0034] In summary, the positioning jig 100 can support both the front face and the back face of the product 200, and the positioning jig 100 can replace the two jigs used in the related art, reducing the number of jigs produced, thereby reducing production costs and improving production efficiency.

[0035] It should be noted that the cover plate 20 is placed in the accommodation groove 201 of the product 200, which can support the product 200 and reduce the risk of deformation of the product 200 during processing. In addition, when the product 200 is turned over, the cover plate 20 is also turned over with the product 200. For ease of description, the side of the cover plate 20 facing the front face of the product 200 is defined as the front face of the cover plate 20, and the side of the cover plate 20 facing the back face of the product 200 is defined as the back face of the cover plate 20.

[0036] In some embodiments, as shown in FIG. 3, the positioning jig 100 further comprises a positioning plate 30, the positioning plate 30 is arranged on the base 10, and the positioning plate 30 is provided with a positioning hole 31.​Figures 3-5 As shown, the front side of the cover plate 20 is provided with a first magnetic member 22. The positioning jig 100 further comprises a moving member 30 and a second magnetic member 40. The moving member 30 is located on the side of the first support surface 12 away from the cover plate 20, i.e. the moving member 30 is located below the first support surface 12. The second magnetic member 40 is provided on the moving member 30. The moving member 30 is movable relative to the base 10 between a magnetic attraction position and a disengagement position, wherein the magnetic attraction position is higher than the disengagement position, and the moving member 30 is closer to the cover plate 20 at the magnetic attraction position than at the disengagement position, i.e. the second magnetic member 40 is closer to the first magnetic member 22 at the magnetic attraction position than at the disengagement position.

[0037] When the product 200 is positioned with the back side upward, the moving member 30 is moved to the magnetic attraction position, as shown in FIG. 2B. Figure 3 As shown, the first magnetic member 22 is magnetically attracted by the second magnetic member 40, so that the cover plate 20 is subjected to a downward force, thereby making the cover plate 20 tightly adhere to the base 10, improving the stability of the cover plate 20 and the product 200. The reason why the first magnetic member 22 is attracted by the second magnetic member 40 when the product 200 is positioned with the back side upward is that, when the product 200 is positioned with the back side upward, although the cover plate 20 is supported by the support pin 15 at the gap 11, the contact area between the cover plate 20 and the support pin 15 is small, so that when the back side of the product 200 is processed, the cover plate 20 has a risk of shaking relative to the base 10. Therefore, in order to improve the stability, the first magnetic member 22 is attracted by the second magnetic member 40, so that the cover plate 20 tightly adheres to the first support surface 12 and the support pin 15, thereby increasing the friction between the cover plate 20 and the first support surface 12 and the support pin 15, and further reducing the risk of the cover plate 20 shaking relative to the base 10.

[0038] However, when the product 200 is positioned with the front side upward, the cover plate 20 will be flipped after the product 200, which will cause the magnetic poles of the first magnetic member 22 to be upside down, but the magnetic poles of the second magnetic member 40 remain unchanged. Therefore, the first magnetic member 22 will not be magnetically attracted by the second magnetic member 40, but will be magnetically repelled by the second magnetic member 40. The magnetic repulsion will cause the cover plate 20 to be subjected to an upward force, resulting in a tendency of the cover plate 20 and the product 200 to be separated from the base 10, reducing the stability of the cover plate 20 and the product 200. Therefore, in order to avoid magnetic repulsion, when the product 200 is positioned with the front side upward, the moving member 30 is moved to the disengagement position, as shown in FIG. 2C. Figure 4 As shown, the distance between the second magnetic member 40 in the disengagement position and the first magnetic member 22 is far enough, so that the first magnetic member 22 is not magnetically repelled by the second magnetic member 40, thereby ensuring the stability of the cover plate 20 and the product 200.

[0039] In some embodiments, as shown in FIG. 3, the first magnetic member 22 is provided on the first support surface 12, and the second magnetic member 40 is provided on the moving member 30. Figures 3-5As shown, the moving piece 30 has a boss 31, and the second magnetic piece 40 is arranged on the top of the boss 31. The base 10 is provided with a clearance hole 16 for accommodating the boss 31. When the moving piece 30 moves to the magnetic attraction position, the boss 31 is located in the clearance hole 16, so that the second magnetic piece 40 can be closer to the first magnetic piece 22, thereby enhancing the magnetic attraction between the second magnetic piece 40 and the first magnetic piece 22, and improving the stability of the cover plate 20 relative to the base 10.

[0040] For example, the first magnetic piece 22, the second magnetic piece 40, the boss 31 and the clearance hole 16 each have a plurality of and one-to-one correspondence, each clearance hole 16 is used to accommodate a corresponding boss 31, each boss 31 is provided with a second magnetic piece 40, and each second magnetic piece 40 is attracted to a corresponding first magnetic piece 22 in an up-down alignment, and a plurality of first magnetic pieces 22 are distributed at different positions of the cover plate 20 in a spaced manner, so that the stress of the cover plate 20 is more uniform, thereby improving the stability of the cover plate 20 relative to the base 10. Specifically, the first magnetic piece 22, the second magnetic piece 40, the boss 31 and the clearance hole 16 each have six, and the cover plate 20 and the base 10 have a first shape, and the six first magnetic pieces 22 are arranged in two rows along the width of the cover plate 20, and each row has three first magnetic pieces 22 arranged along the length of the cover plate 20.

[0041] In some embodiments, as shown, Figures 3-5 Due to certain factors, for example, the positioning jig 100 is deformed or worn due to long-term use, etc., the moving piece 30 may be offset in the horizontal direction relative to the base 10, thereby causing the boss 31 to be offset relative to the clearance hole 16, at this time, it is easy to cause the risk that the boss 31 cannot enter the clearance hole 16 due to misalignment of the clearance hole 16. Therefore, in order for the boss 31 to smoothly enter the clearance hole 16, the cross-sectional area of the boss 31 and the clearance hole 16 gradually increases from the disengagement position to the magnetic attraction position (i.e. from bottom to top), so that the cross-sectional area of the bottom of the clearance hole 16 is greater than the cross-sectional area of the top of the boss 31. Even in the case of offset of the boss 31 relative to the clearance hole 16, the boss 31 can enter the clearance hole 16, and in the process of the boss 31 entering the clearance hole 16, the hole wall of the clearance hole 16 can guide the boss 31 to gradually return to position, so that the second magnetic piece 40 on the boss 31 is aligned with the first magnetic piece 22 of the cover plate 20, thereby ensuring that the second magnetic piece 40 has sufficient magnetic attraction to the first magnetic piece 22.

[0042] Alternatively, the boss 31 is in the shape of a conical table, and the hole wall of the clearance hole 16 is also in the shape of a conical surface, or the boss 31 is in the shape of a hemisphere, and the hole wall of the clearance hole 16 is also in the shape of a hemisphere. It can be understood that the boss 31 and the hole wall of the clearance hole 16 can also have other shapes, as long as the boss 31 can smoothly enter the clearance hole 16.

[0043] In some embodiments, such as Figure 5 As shown, the movable member 30 has a guide hole 32, and the positioning fixture 100 also includes a guide post 50. The guide post 50 is fixed in position relative to the base 10. The guide post 50 passes through the guide hole 32 and is used to guide the movement of the movable member 30 between the magnetic attraction position and the disengagement position, thereby reducing the risk of the movable member 30 shifting relative to the base 10.

[0044] In some embodiments, such as Figure 5 As shown, the positioning fixture 100 also includes a bracket 60 and a driver 70. The base 10 is fixedly mounted on the bracket 60. The driver 70 is connected to the movable member 30 and is used to drive the movable member 30 to move, wherein the driving stroke of the driver 70 on the movable member 30 remains constant. The driver 70 is disposed on the bracket 60, and the driver 70 can be adjusted relative to the bracket 60 along the moving direction of the movable member 30, thereby adjusting the magnetic attraction position and disengagement position of the movable member 30 relative to the base 10. For example, when the driver 70 is adjusted downwards relative to the bracket 60 by a certain distance, the magnetic attraction position and disengagement position will also decrease by a certain distance; or, when the driver 70 is adjusted upwards relative to the bracket 60 by a certain distance, the magnetic attraction position and disengagement position will also increase by a certain distance. Exemplarily, the driver 70 is a cylinder.

[0045] When the positioning fixture 100 is in use, if the distance between the second magnetic element 40 and the first magnetic element 22 is too large after the moving part 30 moves to the magnetic attraction position, causing the second magnetic element 40 to be unable to generate a sufficiently large magnetic attraction to the first magnetic element 22, the driver 70 can be adjusted upward relative to the bracket 60 by a certain distance. After adjustment, the magnetic attraction position and the disengagement position will also rise by a certain distance, thereby reducing the distance between the second magnetic element 40 and the first magnetic element 22 after the moving part 30 moves to the magnetic attraction position, thus enabling the second magnetic element 40 to generate a sufficiently large magnetic attraction to the first magnetic element 22.

[0046] Alternatively, when the positioning fixture 100 is in use, if the distance between the second magnetic element 40 and the first magnetic element 22 is too small after the moving part 30 moves to the disengaged position, causing the second magnetic element 40 to generate a magnetic repulsive force on the first magnetic element 22, the driver 70 can be adjusted downward relative to the bracket 60 by a certain distance. After adjustment, the magnetic attraction position and the disengagement position will also decrease by a certain distance, thereby increasing the distance between the second magnetic element 40 and the first magnetic element 22 after the moving part 30 moves to the disengaged position, so that the second magnetic element 40 no longer generates a magnetic repulsive force on the first magnetic element 22.

[0047] In some embodiments, such as Figure 5As shown, the bracket 60 is provided with an adjusting hole 61 extending along the moving direction of the moving part 30, the driver 70 is provided with a mounting hole 71 aligned with any position of the adjusting hole 61, and the positioning jig 100 further comprises a locking member 80 comprising a rod portion 81 and a clamping portion 82 connected with each other, the rod portion 81 passing through the adjusting hole 61 and extending into the mounting hole 71 to connect the driver 70, so that the driver 70 and the clamping portion 82 jointly clamp the bracket 60 to fix the driver 70 to the bracket 60.

[0048] Exemplarily, the locking member 80 is a screw, the rod portion 81 is a threaded rod portion of the screw and has external threads, the clamping portion 82 is a screw head portion of the screw, and the mounting hole 71 has internal threads, so that when the screw is tightened, the driver 70 and the screw head jointly clamp the bracket 60 to fix the driver 70 to the bracket 60.

[0049] It can be understood that in other embodiments, the adjusting mode of the driver 70 relative to the bracket 60 can be other structures, for example, a straight screw and a threaded slider can be used, the driver 70 is arranged on the slider, and the height of the driver 70 is adjusted by rotating the straight screw to adjust the height of the slider.

[0050] In some embodiments, as shown, Figures 2-3 As shown, the front surface of the cover plate 20 is provided with an annular convex wall 23 surrounding a limiting groove 24 for accommodating the support pin 15. When the product 200 is positioned with the back surface upward, the front surface of the cover plate 20 is supported by the support pin 15 at the gap 11, at this time, the top of the support pin 15 extends into the limiting groove 24, and the support pin 15 abuts against the groove wall of the limiting groove 24 to support the cover plate 20. The annular convex wall 23 can limit the support pin 15 to reduce the shaking of the cover plate 20 relative to the support pin 15.

[0051] Exemplarily, the product 200 is provided with three through holes 203 at the protrusion 202, the three through holes 203 are at positions corresponding to the three rear cameras of the mobile phone, correspondingly, the base 10 is provided with three support pins 15, and the front surface of the cover plate 20 has three annular convex walls 23, each annular convex wall 23 forms a limiting groove 24, and the limiting groove 24, the support pin 15 and the through hole 203 correspond one by one.

[0052] In some embodiments, as shown, Figure 1 , 2As shown in FIGS. 6, the positioning pin 14 includes a first pin 141 and a second pin 142, and the positioning hole 21 includes a first hole 211 and a second hole 212. The first pin 141 has a first shape in cross section, which can be rectangular, and the first hole 211 has the first shape in cross section and is configured to accommodate the first pin 141. The second pin 142 has a second shape in cross section, which can be circular, and the second hole 212 has the second shape in cross section and is configured to accommodate the second pin 142, and the diameter of the second hole 212 is the same as the diameter of the second pin 142.

[0053] The first hole 211 extends through the edge of the cover plate 20, so that the first pin 141 can enter the first hole 211 through the edge of the cover plate 20, rather than being inserted into the first hole 211 only along the axis of the first hole 211. In addition, the width of the first hole 211 along the X direction is the same as the width of the first pin 141 along the X direction. When the first pin 141 enters the first hole 211, the opposite sides of the first pin 141 along the X direction abut the opposite hole walls of the first hole 211 along the X direction, so that the cover plate 20 can only rotate relative to the base 10 about an axis parallel to the X direction. At this time, since the distance between the first pin 141 and the second pin 142 is close to the distance between the first hole 211 and the second hole 212, the second pin 142 is more easily aligned with the second hole 212 by rotating the cover plate 20, which saves time compared to blindly aligning the second pin 142 and the second hole 212, thereby improving the efficiency of positioning the cover plate 20.

[0054] For example, when placing the cover plate 20 on the base 10, the first pin 141 can be first inserted into the first hole 211 through the edge of the cover plate 20, and then the cover plate 20 is rotated downward, which makes it easier to align the second pin 142 with the second hole 212 so that the second pin 142 is inserted into the second hole 212, thereby saving the operation of blindly aligning the second pin 142 and the second hole 212, and improving the efficiency of positioning the cover plate 20.

[0055] It can be understood that the product 200 is correspondingly provided with two through holes 204, which are respectively aligned with the first hole 211 and the second hole 212, so that the first pin 141 and the second pin 142 can pass through the product 200 to enter the first hole 211 and the second hole 212.

[0056] In other embodiments, the first pin 141 and the second pin 142 can also be cylindrical pins or prismatic pins, and the first hole 211 and the second hole 212 can also be circular holes or rectangular holes, and in addition, the positioning pin 14 can include a third pin, a fourth pin, etc., and the positioning hole 21 can include a third hole, a fourth hole, etc., as long as the cover plate 20 and the base 10 can be positioned.

[0057] In some embodiments, the present application also provides a processing platform (not shown in the figure) comprising a processing mechanism, a turning mechanism and the positioning jig 100. The processing mechanism is used to process the front and back surfaces of the product 200, and the turning mechanism is used to grab the cover plate 20 and the product 200 on the base 10 and turn them over. For example, after the processing mechanism finishes processing the front surface of the product 200, the turning mechanism turns over the cover plate 20 and the product 200 so that the back surface of the product 200 faces upward, and then the processing mechanism processes the back surface of the product 200, thereby realizing automatic processing of the front and back surfaces of the product 200.

[0058] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation to the present application. Any appropriate changes and variations made to the above embodiments within the spirit and principles of the present application fall within the scope of the present application.

Claims

1. A positioning jig for positioning a product, a front surface of the product having a receiving groove, a back surface of the product having a protrusion provided with a through hole, characterized by, The positioning jig comprises: a base provided with a notch, the base having a first supporting surface outside the notch, the base having a second supporting surface inside the notch, the first supporting surface being provided with a positioning pin, the second supporting surface being provided with a supporting pin; and a cover plate for being placed in the accommodating groove, the cover plate having a positioning hole for accommodating the positioning pin to position the cover plate with the base; when the product is positioned with the front face upward, the notch accommodates the protrusion, the first supporting surface supports the back face of the product, the second supporting surface supports the protrusion, the supporting pin is located in the through hole, and the positioning pin is located in the positioning hole; when the product is positioned with the back face upward, the first supporting surface and the supporting pin support the cover plate, and the positioning pin is located in the positioning hole.

2. The positioning fixture of claim 1, wherein: The cover plate is provided with a first magnetic member, the positioning jig further comprises a moving member and a second magnetic member, the moving member is located on a side of the first supporting surface away from the cover plate, the second magnetic member is arranged on the moving member, the moving member is movable relative to the base between a magnetic attraction position and a disengagement position, the moving member is closer to the cover plate at the magnetic attraction position than at the disengagement position; when the product is positioned with the back face upward, the moving member moves to the magnetic attraction position, and the first magnetic member is magnetically attracted by the second magnetic member; when the product is positioned with the front face upward, the moving member moves to the disengagement position, and the first magnetic member is free from magnetic repulsion of the second magnetic member.

3. The positioning fixture of claim 2, wherein: The moving member has a boss, the second magnetic member is arranged on the top of the boss, the base is provided with an avoiding hole for accommodating the boss, when the moving member moves to the magnetic attraction position, the boss is located in the avoiding hole, so that the second magnetic member is close to the first magnetic member.

4. The positioning fixture of claim 3, wherein: The cross-sectional area of the boss and the avoiding hole gradually increases from the disengagement position to the magnetic attraction position.

5. The positioning fixture of claim 2, wherein: The moving member has a guide hole, the positioning jig further comprises a guide column, the position of the guide column relative to the base is fixed, and the guide column passes through the guide hole to guide the movement of the moving member between the magnetic attraction position and the disengagement position.

6. The positioning fixture of claim 2, wherein: The positioning jig further comprises a bracket and a driver, the base and the driver are arranged on the bracket, the driver is connected with the moving member and is used to drive the moving member to move, the position of the driver relative to the bracket can be adjusted along the moving direction of the moving member, so as to adjust the magnetic attraction position and the disengagement position of the moving member relative to the base.

7. The positioning fixture of claim 6, wherein: The bracket is provided with an adjusting hole extending along the moving direction of the moving member, the driver is provided with a mounting hole aligned with any position of the adjusting hole, and the positioning jig further comprises a locking member comprising a rod portion and a clamping portion connected with each other, one end of the rod portion away from the clamping portion passes through the adjusting hole and extends into the mounting hole to connect with the driver, so that the driver and the clamping portion clamp the bracket to fix the driver to the bracket.

8. The positioning fixture of any one of claims 1 to 7, wherein: The cover plate is provided with an annular convex wall, which surrounds a limiting groove. When the product is positioned with the back face upward, the supporting pin extends into the limiting groove and abuts against the groove wall to support the cover plate.

9. The positioning fixture of any one of claims 1 to 7, wherein: The positioning pin includes a first pin and a second pin, the first pin has a first shape in cross-sectional profile, the second pin has a second shape in cross-sectional profile, the positioning hole includes a first hole and a second hole, the first hole has a first shape in cross-sectional profile and is used for accommodating the first pin, the first hole penetrates the edge of the cover plate, the second hole has a second shape in cross-sectional profile and is used for accommodating the second pin.

10. A processing station, characterized by: The processing machine includes a processing mechanism, a turnover mechanism and the positioning jig as claimed in any one of claims 1 to 9, the processing mechanism is used for processing the front face and the back face of the product, and the turnover mechanism is used for grabbing the cover plate and the product on the base and turning over the cover plate and the product.

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