Positioning jig

Abstract

The utility model relates to a positioning jig. The positioning jig comprises a jig base, the jig base is provided with a concave positioning space, and the positioning space is used for positioning a first product; and the positioning structure comprises an inserting piece and a positioning piece, the inserting piece is suitable for extending into an inserting hole formed in the upper end face of the jig base, and the positioning piece is located above the jig base and used for positioning the second product. The positioning jig can be applied to positioning and attaching of an assembly, smaller than a first product, of a second product, in addition, due to the fact that the positioning structure is assembled on the jig base in an inserting and assembling mode, the positioning structure is convenient to disassemble and assemble, meanwhile, the relative position of the positioning structure and the jig base can be accurately determined, and the positioning accuracy is improved. Therefore, the relative position of the second product and the first product is determined, and the positioning accuracy of the second product and the first product is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen assembly, in particular to a positioning jig. BACKGROUND

[0002] The cross section of the cover plate in the current display screen assembly is larger than the cross section size of the display unit, so the current positioning jig can only be applied to the display screen assembly with the cover plate larger than the display unit. If the current display screen assembly is used for the display screen assembly with the cover plate smaller than the display unit, the problem that the display screen assembly after bonding cannot be detached from the positioning jig exists. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a positioning jig for the problem that the display screen assembly cannot be detached from the positioning jig.

[0004] A positioning jig, the positioning jig comprising:

[0005] A jig base, the jig base being provided with an inner concave positioning space, the positioning space being used for positioning a first product;

[0006] A positioning structure, the positioning structure comprising a plug-in piece and a positioning piece, the plug-in piece being adapted to extend into a plug-in hole provided in an upper end face of the jig base, and the positioning piece being located above the jig base for positioning a second product.

[0007] In one of the embodiments, the plug-in piece is provided with a first assembly part, and the positioning piece is provided with a second assembly part, the second assembly part being matched with the first assembly part, so that the positioning piece is detachably assembled on the plug-in piece.

[0008] In one of the embodiments, the positioning structure further comprises a screw fixing piece, the first assembly part is at least one screw hole, and the second assembly part is at least one strip-shaped counterbore, the screw fixing piece being adapted to be assembled into the strip-shaped counterbore to be screwedly matched with the screw hole.

[0009] In one of the embodiments, two screw holes are provided in the first assembly part, and two strip-shaped counterbores are provided in the second assembly part, the two strip-shaped counterbores being arranged in parallel.

[0010] In one of the embodiments, the first assembly part is one of a clamping groove and a clamping boss, the second assembly part is the other one of the clamping groove and the clamping boss, and the clamping groove is clamped and matched with the clamping boss.

[0011] In one of the embodiments, in the height direction of the positioning jig, the lower end face of the positioning piece abuts against the upper end face of the jig base.

[0012] In one of the embodiments, the jig base has a transverse direction perpendicular to the height of the jig base, and the at least two positioning structures are oppositely arranged along the transverse direction.

[0013] In one of the embodiments, the outer peripheral wall of the insertion piece is provided with one of the clamping protrusion and the clamping groove in the height direction of the positioning jig, the inner peripheral wall of the insertion hole is provided with the other one of the clamping protrusion and the clamping groove, and the clamping protrusion and the clamping groove are clamped and matched.

[0014] In one of the embodiments, the insertion piece is provided with a guide inclined surface away from the positioning piece, and the peripheral wall of the insertion hole is provided with a guide matching inclined surface connected with the upper end surface of the jig base.

[0015] In one of the embodiments, the peripheral wall of the jig base is provided with a lifting notch, and the lifting notch is recessed towards the inside of the jig base.

[0016] The positioning jig can be applied to the positioning and fitting of the display screen assembly with the cover plate smaller than the display unit. In addition, the positioning structure is assembled in the jig base in the form of insertion assembly, which not only facilitates the disassembly of the positioning structure, but also can accurately determine the relative position of the positioning structure and the jig base, so as to determine the relative position of the cover plate and the display unit, and ensure the fitting accuracy of the cover plate and the display unit. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the positioning jig according to one embodiment of the present application.

[0018] Figure 2 It is a top view of the positioning jig according to one embodiment of the present application.

[0019] Figure 3 It is a front view of the positioning jig according to one embodiment of the present application.

[0020] Figure 4 It is a perspective view of the jig base according to one embodiment of the present application.

[0021] Figure 5 It is a perspective view of the positioning structure according to one embodiment of the present application.

[0022] REFERENCE NUMERALS

[0023] 100, positioning jig; 1, jig base; 10, positioning space; 11, insertion hole; 110, guide matching inclined surface; 12, lifting notch; 2, positioning structure; 21, insertion piece; 210, first assembly part; 211, threaded hole; 22, positioning piece; 220, second assembly part; 221, strip-shaped counterbore; 222, guide inclined surface; 223, positioning end surface; 3, limiting space. DETAILED DESCRIPTION

[0024] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0025] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0027] In the present application, unless otherwise specifically defined and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0029] It should be noted that if an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not mean the only implementation.

[0030] Referring to Figures 1 to 5 As shown, the positioning jig 100 according to some embodiments of the present application comprises a jig base 1 and a positioning structure 2, the jig base 1 is provided with an inner recessed positioning space 10 for positioning a first product. The positioning structure 2 comprises a plug-in piece 21 and a positioning piece 22, the plug-in piece 21 is adapted to extend into a plug-in hole 11 provided in the upper end face of the jig base 1, and the positioning piece 22 is located above the jig base 1 for positioning a second product. Since the positioning structure 2 is detachably assembled on the jig base 1, the positioning structure 2 is detached from the jig base 1 before the product is detached from the positioning jig 100, thereby avoiding the problem that the positioning structure 2 blocks the product and cannot be detached from the positioning jig 100.

[0031] For example, referring to Figures 1 to 5 As shown, in an embodiment of the present application, the positioning jig 100 can be applied to the positioning and lamination of a display screen assembly whose cover plate is smaller than the display unit. During the lamination process, the operator places the display unit in the positioning space 10 so that the outer peripheral wall of the display unit abuts against the jig base 1 for limiting the relative position of the display unit and the jig base 1, thereby realizing the effect of the positioning space 10 for positioning the display unit.

[0032] Referring to Figure 2As shown, along the circumference of the positioning space 10, the plurality of positioning structures 2 are sequentially arranged and assembled on the jig base 1, so that the positioning pieces 22 of the plurality of positioning structures 2 define a limiting space 3 above the positioning space 10, the size of the limiting space 3 is adapted to the size of the cover plate, in the process that the cover plate passes through the limiting space 3 to be attached with the display unit, the outer peripheral wall of the cover plate contacts the positioning end face 223 of the positioning piece 22, thereby limiting the relative position of the cover plate and the jig base 1, realizing the effect of the positioning piece 22 for positioning the cover plate. Since the relative position of the positioning piece 22 and the jig base 1 is determined, the relative position of the limiting space 3 and the display unit placed in the jig base 1 can be determined, therefore, when the positioning jig 100 of the present application is used for the attachment of the cover plate and the display unit, the attachment position of the cover plate and the display unit can be accurately controlled, and the attachment accuracy of the cover plate and the display unit is ensured.

[0033] Since the size of the cover plate is smaller than the size of the display unit, after the cover plate and the display unit are attached and combined into a display screen assembly, at least part of the structure of the positioning piece 22 is located above the display unit in the height direction of the positioning jig 100. Therefore, by detaching the positioning structure 2 from the jig base 1, the positioning piece 22 can be avoided from interfering with the display unit, so as to facilitate the detachment of the display screen assembly from the positioning jig 100. In addition, it should be further pointed out that before the display unit is loaded into the positioning space 10, the positioning structure 2 also needs to be detached from the jig base 1, so as to avoid the display unit being blocked by the positioning piece 22, and the display unit can be loaded into the positioning space 10.

[0034] In the process of assembling the positioning structure 2 on the jig base 1, the plug-in piece 21 is inserted into the plug-in hole 11 of the jig base 1, so that the plug-in piece 21 is plug-in matched with the plug-in hole 11, thereby realizing the effect that the positioning structure 2 is plug-in assembled on the jig base 1. Since the assembling mode of the positioning structure 2 and the jig base 1 is plug-in assembly, no additional tool is needed to detach the positioning structure 2 during the process of detaching the positioning structure 2 from the jig base 1, which makes the detachment of the positioning structure 2 more convenient and improves the work efficiency. In addition, since the relative position of the plug-in hole 11 provided in the jig base 1 and the jig base 1 is fixed, when the positioning structure 2 is assembled on the jig base 1, the relative position of the positioning structure 2 and the jig base 1 can be accurately determined, that is, the relative position of the cover plate and the display unit can be determined, thereby being beneficial to ensuring the attachment accuracy of the cover plate and the display unit.

[0035] It should be understood that, referring to Figure 1 As shown, the positioning jig 100 is placed in Figure 1 the height direction. Figure 1 As shown in the figure, the Z direction is the height direction of the positioning jig 100, in addition, the height direction of the positioning jig 100 is also the height direction of the jig base 1.

[0036] In summary, the positioning jig 100 according to the present application can be used for positioning and fitting of a display screen assembly whose cover plate is smaller than the display unit. In addition, since the positioning structure 2 is assembled to the jig base 1 by plug-in assembly, this not only facilitates the assembly and disassembly of the positioning structure 2, but also can accurately determine the relative position of the positioning structure 2 and the jig base 1, so as to determine the relative position of the cover plate and the display unit, and ensure the fitting accuracy of the cover plate and the display unit.

[0037] It should be noted that, in the above embodiment, the positioning jig 100 is used for positioning and laminating a display screen assembly as an example for description, but the present application is not limited thereto, and the positioning jig 100 can also be used for laminating operations on other products.

[0038] In some embodiments of the present application, the hole shape of the plug hole 11 can be a through hole or a countersunk hole. For example, when the plug hole 11 is a through hole, the plug hole 11 passes through the jig base 1 in the height direction of the jig base 1, or when the plug hole 11 is a countersunk hole, the plug hole 11 is recessed downward from the upper end surface of the jig base 1 along the height direction of the jig base 1.

[0039] In some embodiments of the present application, the positioning structure 2 can be an integrally formed part, that is, the connector 21 and the positioning part 22 in the integrally formed positioning structure 2 are in a permanently fixed connection state, avoiding the risk of breakage between the connector 21 and the positioning part 22.

[0040] In some embodiments of this application, see Figure 5 As shown, the connector 21 is provided with a first assembly portion 210, and the positioning member 22 is provided with a second assembly portion 220. The second assembly portion 220 and the first assembly portion 210 are arranged so that the positioning member 22 can be detachably assembled to the connector 21. Since the positioning member 22 is detachably assembled to the connector 21, at least one of the connector 21 and the positioning member 22 can be replaced. For example, when the connector 21 in the positioning structure 2 cannot be stably inserted into the plug hole 11, by replacing the appropriate connector 21, the positioning structure 2 can be stably inserted into the plug hole 11. Alternatively, the positioning fixture 100 needs to be used for a different second product (for example, the size of the second product or the shape of the outer peripheral wall has changed). By replacing the adapted positioning member 22, the positioning structure 2 can be adapted to the new second product.

[0041] In some embodiments of the present application, see Figure 5As shown, the first assembly portion 210 is one of a snap-fit ​​groove (not shown) and a snap-fit ​​protrusion (not shown), and the second assembly portion 220 is the other of the snap-fit ​​groove and the snap-fit ​​protrusion. The snap-fit ​​groove and the snap-fit ​​protrusion snap-fit ​​to engage with each other so that the plug-in component 21 and the positioning component 22 snap-fit. In this way, during the process of disassembling the plug-in component 21 and the positioning component 22, no additional tools are required for disassembly and assembly, thereby facilitating the disassembly and assembly of the plug-in component 21 and the positioning component 22. For example, in one embodiment, the first assembly portion 210 is a snap-fit ​​groove, and the corresponding second assembly portion 220 is a snap-fit ​​protrusion. Alternatively, in another embodiment, the first assembly portion 210 is a snap-fit ​​protrusion, and the corresponding second assembly portion 220 is a snap-fit ​​groove.

[0042] In some embodiments of the present application, see Figure 5 As shown, the positioning structure 2 may also include a screw fixing member (not shown in the figure), the first assembly part 210 is at least one screw hole 211, and the second assembly part 220 is at least one strip countersunk hole 221, and the screw fixing member is suitable for being installed in the strip countersunk hole 221 to be screwed together with the screw hole 211.

[0043] For example, see Figure 5 As shown, the positioning structure 2 is Figure 5 When placed in the middle direction, Figure 5 The Z direction is the height direction of the positioning structure 2 and the height direction of the plug-in connector 21. The screw hole 211 is provided at the upper end of the plug-in connector 21 so that when the positioning member 22 is assembled to the plug-in connector 21, the positioning member 22 is fixedly assembled to the upper end of the plug-in connector 21. In addition, the positioning structure 2 also has a front-to-back direction perpendicular to its height direction. Figure 5 The X direction in the figure is the front-to-back direction of the positioning structure 2. When the positioning member 22 is assembled with the connector 21, the extending direction of the strip-shaped countersunk hole 221 is parallel to the front-to-back direction of the positioning structure 2, so that the positioning member 22 can move relative to the connector 21 along the front-to-back direction of the positioning structure 2, thereby achieving the effect of adjusting the positioning member 22 in the front-to-back direction of the positioning structure 2.

[0044] It should be further explained that the screw fixing member can include a screw head and a screw rod fixedly connected, and in the process of using the screw fixing member to fixedly assemble the positioning member 22 to the plug-in member 21, the screw rod of the screw fixing member passes through the positioning member 22 through the strip-shaped counterbore 221, and the screw rod extends into the corresponding screw hole 211, so that the screw fixing member is screwed with the plug-in member 21, and in the height direction of the positioning structure 2, the screw head located in the strip-shaped counterbore 221 presses the positioning member 22 against the plug-in member 21, thereby realizing the effect of using the screw fixing member to fixedly assemble the positioning member 22 to the plug-in member 21. In addition, it should be pointed out that since the screw fixing member is used to fixedly assemble the positioning member 22 to the plug-in member 21, only slight loosening of the screw fixing member is required to realize the effect of adjusting the position of the positioning member 22, and the positioning member 22 can also be prevented from being separated from the plug-in member 21 to prevent the positioning member 22 from being lost.

[0045] Since the relative position of the positioning member 22 to the plug-in member 21 in the front-rear direction of the positioning structure 2 is adjustable, the positioning structure 2 can be adapted to second products of different sizes. For example, for the same batch of second products (for example, cover plates), when there is a tolerance in the batch of second products, the positioning end surface 223 of the positioning member 22 can be brought into abutting contact with the outer peripheral wall of the second product by adjusting the positioning member 22, so as to ensure that the positioning jig 100 can be used to position each second product, and to ensure the fitting effect of the second product and the first product.

[0046] Since the relative position of the positioning member 22 to the plug-in member 21 in the front-rear direction of the positioning structure 2 is adjustable, the positioning structure 2 can be adapted to second products of different sizes. For example, for the same batch of second products (for example, cover plates), when there is a tolerance in the batch of second products, the positioning end surface 223 of the positioning member 22 can be brought into abutting contact with the outer peripheral wall of the second product by adjusting the positioning member 22, so as to ensure that the positioning jig 100 can be used to position each second product, and to ensure the fitting effect of the second product and the first product.

[0047] In some embodiments of the present application, referring to Figure 5 As shown in the figure, two screw holes 211 are arranged in the first assembly part 210, and two strip-shaped counterbores 221 are arranged in the second assembly part 220, and the two strip-shaped counterbores 221 are arranged in parallel. When two screw fixing members are used to fixedly assemble the positioning member 22 to the plug-in member 21, the arrangement direction of the two screw fixing members is perpendicular to the extension direction of the strip-shaped counterbores 221, and the two screw fixing members are cooperatively arranged to limit the relative position of the positioning member 22 and the plug-in member 21 in the circumferential direction of the screw fixing member, thereby preventing the positioning member 22 from rotating relative to the plug-in member 21 and ensuring the assembly stability of the positioning member 22.

[0048] In some embodiments of the present application, referring to Figure 1 and Figure 3As shown, the lower end surface of the positioning member 22 abuts against the upper end surface of the jig base 1 in the height direction of the positioning jig 100, thereby limiting the movement of the positioning member 22 in the height direction of the positioning jig 100, and improving the stability of the positioning member 22.

[0049] In some embodiments of the present application, referring to Figures 1 to 3 As shown, the jig base 1 has a transverse direction perpendicular to the height of the jig base 1, and the at least two positioning structures 2 are oppositely arranged along the transverse direction. For example, referring to Figures 1 to 3 As shown, in an embodiment, the jig base 1 is rectangular, and the transverse direction of the jig base 1 can be the length direction and / or the width direction of the jig base 1, for example Figure 2 As shown, Figure 2 The X direction shown in the above embodiment is the length direction of the jig base 1, Figure 2 The Y direction shown in the above embodiment is the width direction of the jig base 1, and two pairs of oppositely arranged positioning structures 2 are arranged in the length direction of the jig base 1, and two pairs of oppositely arranged positioning structures 2 are also arranged in the width direction of the jig base 1. Since the positioning structures 2 are oppositely arranged along the transverse direction of the jig base 1, the positioning end surfaces 223 of the two oppositely arranged positioning structures 2 are parallel to each other, so that when the second product is in the limiting space 3 defined by the multiple positioning structures 2, the relative position of the second product to the first product is more accurate, thereby ensuring the fitting accuracy of the first product and the second product.

[0050] In some embodiments of the present application, referring to Figure 4 and Figure 5 As shown, the outer peripheral wall of the insertion piece 21 is provided with one of the clamping protrusions (not shown in the figure) and the clamping grooves (not shown in the figure), and the inner peripheral wall of the insertion hole 11 is provided with the other one of the clamping protrusions and the clamping grooves, and the clamping protrusions and the clamping grooves are clamped and matched, so that when the insertion piece 21 is inserted into the insertion hole 11, the insertion piece 21 is also clamped and matched with the insertion hole 11, thereby limiting the relative position between the insertion piece 21 and the jig base 1 in the height direction of the insertion piece 21 and the circumferential direction of the insertion piece 21, thereby further reducing the risk of loosening of the insertion piece 21, and ensuring the assembly stability of the positioning structure 2.

[0051] For example, the surface of the clamping protrusion is arc convex, and the surface of the clamping groove is corresponding arc concave, so that the clamping protrusion can slide into the clamping groove to realize the clamping effect of the clamping protrusion and the clamping groove during the process of inserting the inserting piece 21 into the inserting hole 11. Moreover, the surface of the clamping protrusion is arc convex, and the surface of the clamping groove is corresponding arc concave, so that the resistance is smaller during the process of disassembling or assembling the positioning structure 2 and the jig base 1, thereby avoiding the operator from exerting a large force during the disassembling or assembling process, for example, exerting a pulling force on the positioning structure 2 and the jig base 1 respectively during the disassembling process, or exerting a pressure on the positioning structure 2 and the jig base 1 respectively during the assembling process.

[0052] In some embodiments of the present application, referring to Figure 4 and Figure 5 , the end of the inserting piece 21 away from the positioning piece 22 is provided with a guide inclined surface 222, and the part of the peripheral wall of the inserting hole 11 connected with the upper end surface of the jig base 1 is provided with a guide matching inclined surface 110 matched with the guide inclined surface 222. During the process of inserting the inserting piece 21 into the inserting hole 11, the guide inclined surface 222 and the guide matching inclined surface 110 are matched to guide, so as to facilitate the inserting piece 21 to move into the inserting hole 11, thereby facilitating the operator to quickly and accurately insert the positioning structure 2 into the jig base 1, and improving the assembling efficiency of assembling the positioning structure 2 into the jig base 1.

[0053] In some embodiments of the present application, referring to Figure 1 , Figure 3 and Figure 4 , the peripheral wall of the jig base 1 is provided with a lifting notch 12, which is recessed towards the inside of the jig base 1, so as to facilitate lifting the positioning jig 100 from the table surface on which the positioning jig 100 is placed.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, not all possible combinations of the technical features in the above-mentioned embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0055] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A positioning jig characterized by, The utility model relates to a positioning jig, comprising: a jig base provided with a concave positioning space for positioning a first product; a positioning structure comprising a plug-in piece and a positioning piece, the plug-in piece being provided with a first assembly part, the positioning piece being provided with a second assembly part, the second assembly part being matched with the first assembly part so that the positioning piece is detachably assembled on the plug-in piece, the plug-in piece being adapted to extend into a plug-in hole provided in the upper end surface of the jig base, and the positioning piece being located above the jig base for positioning a second product.

2. The positioning jig according to claim 1, wherein The positioning structure further comprises a screwing fixing piece, the first assembly part is at least one screwing hole, and the second assembly part is at least one strip-shaped counterbore, the screwing fixing piece being adapted to be assembled into the strip-shaped counterbore to be screwingly matched with the screwing hole.

3. The positioning fixture of claim 2, wherein Two screwing holes are provided in the first assembly part, and two strip-shaped counterbores are provided in the second assembly part, the two strip-shaped counterbores being arranged in parallel.

4. The positioning fixture of claim 1, wherein The first assembly part is one of a clamping groove and a clamping boss, the second assembly part is the other of the clamping groove and the clamping boss, and the clamping groove is clampingly matched with the clamping boss.

5. The positioning fixture of claim 1, wherein In the height direction of the positioning jig, the lower end surface of the positioning piece abuts against the upper end surface of the jig base.

6. The positioning jig according to any one of claims 1 to 5, wherein The jig base has a transverse direction perpendicular to the height of the jig base, and at least two positioning structures are oppositely arranged along the transverse direction.

7. The positioning jig according to any one of claims 1 to 5, wherein The outer peripheral wall of the plug-in piece is provided with one of a clamping protrusion and a clamping groove, the inner peripheral wall of the plug-in hole is provided with the other of the clamping protrusion and the clamping groove, and the clamping protrusion is clampingly matched with the clamping groove.

8. The positioning jig according to any one of claims 1 to 5, wherein The end of the plug-in piece away from the positioning piece is provided with a guide inclined surface, and the part of the peripheral wall of the plug-in hole connected with the upper end surface of the jig base is provided with a guide matching inclined surface guided matched with the guide inclined surface.

9. The positioning jig according to any one of claims 1 to 5, wherein The peripheral wall of the jig base is provided with a lifting notch recessed towards the inside of the jig base.

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