A positioning device

Abstract

A positioning device comprises a base, two first limiting assemblies and two second limiting assemblies. The base comprises a bearing surface, and a first direction and a second direction perpendicular to each other in the bearing surface are defined. The two first limiting assemblies are oppositely arranged along the first direction. Each first limiting assembly comprises a first adjusting seat and a first limiting strip. The two first adjusting seats are adjustably connected to the bearing surface along the second direction, and the first limiting strip is adjustably connected to the first adjusting seat along the first direction. The two second limiting assemblies are oppositely arranged along the second direction. Each second limiting assembly comprises a second adjusting seat and a second limiting strip. The two second adjusting seats are adjustably connected to the bearing surface along the first direction, and the second limiting strip is adjustably connected to the second adjusting seat along the second direction. The two first limiting strips and the two second limiting strips enclose an avoiding space, and the two first limiting strips and the two second limiting strips form a support surface for bearing a product to be measured.

Description

Technical Field

[0001] This utility model relates to the field of electronic product testing fixture technology, and in particular to a positioning device. Background Technology

[0002] Electronic products are products that operate on the basis of electrical energy. They mainly include: watches, smartphones, telephones, televisions, DVD players (VCD, SVCD, DVD), video recorders, camcorders, radios, tape recorders, stereo systems, CD players, computers, game consoles, mobile communication products, etc. They are named electronic products because early products mainly used vacuum tubes as basic components. With the development of modern technology, mankind has gradually entered the information age, and the demand and requirements for electronic products are getting higher and higher. The appearance and lifespan of electronic products are also important factors for consumers when making choices. With the continuous development and pursuit of technology in electronic products, the stress testing experiments on electronic products are also constantly improving.

[0003] Currently, pressure testing fixtures are used to fix electronic products in place, and then pressure testing equipment is used to test the structural strength or connection reliability of the electronic products. However, existing pressure testing fixtures can only support electronic products of a single size, meaning that one fixture is only for electronic products of one size. This leads to the need to manufacture hundreds of different fixtures for products with diverse sizes, resulting in high material and processing costs. Moreover, single-purpose fixtures cannot be reused, creating a storage and management burden. Utility Model Content

[0004] In view of this, the present invention provides a positioning device that can be adapted to electronic products of various sizes and can effectively reduce material and processing costs.

[0005] A positioning device, comprising:

[0006] The base includes a bearing surface, and defines a first direction and a second direction that are perpendicular to each other within the bearing surface.

[0007] Two first limiting components are disposed opposite to each other along a first direction. Each first limiting component includes a first adjusting seat and a first limiting strip. The two first adjusting seats are adjustablely connected to the bearing surface along a second direction, and the first limiting strip is adjustablely connected to the first adjusting seat along the first direction.

[0008] Two second limiting components are arranged opposite each other along the second direction. Each second limiting component includes a second adjusting seat and a second limiting bar. The two second adjusting seats are adjustablely connected to the bearing surface along the first direction, and the second limiting bar is adjustablely connected to the second adjusting seat along the second direction.

[0009] The two first limiting strips and the two second limiting strips enclose a clearance space, and the side of the two first limiting strips and the two second limiting strips near the clearance space forms a support surface for bearing the product to be tested.

[0010] Optionally, the ends of the two first limiting strips abut against the sidewalls of the two second limiting strips, and the ends of the two second limiting strips abut against the sidewalls of the two first limiting strips, and the support surface formed by the combination of the two first limiting strips and the two second limiting strips is a rectangular ring.

[0011] Optionally, product limiting blocks are connected to both of the first limiting strips and both of the second limiting strips, and the four product limiting blocks are arranged around the clearance space. The four product limiting blocks are used to limit the side of the product to be tested.

[0012] Optionally, the bearing surface is provided with a plurality of first positioning holes corresponding to the two first adjustment seats, the plurality of first positioning holes are arranged sequentially at intervals along the second direction, each first adjustment seat is provided with at least one first waist-shaped hole, and each first adjustment seat is connected to the first positioning hole through the first positioning member passing through the first waist-shaped hole;

[0013] The bearing surface is provided with a plurality of second positioning holes corresponding to the two second adjustment seats. The plurality of second positioning holes are arranged sequentially at intervals along the first direction. Each second adjustment seat is provided with at least one second waist-shaped hole. Each second adjustment seat is connected to the second positioning hole through a second positioning member passing through the second waist-shaped hole.

[0014] Optionally, each of the first adjusting seats is provided with a plurality of third positioning holes, the plurality of third positioning holes are arranged sequentially at intervals along the first direction, each of the first limiting strips is provided with at least one third waist-shaped hole, and each of the first limiting strips is connected to the third positioning hole through the third waist-shaped hole via a third positioning member;

[0015] Each of the second adjusting seats is provided with a plurality of fourth positioning holes, which are arranged sequentially at intervals along the second direction. Each of the second limiting strips is provided with at least one fourth waist-shaped hole, and each of the second limiting strips is connected to the fourth positioning hole through a fourth positioning member passing through the fourth waist-shaped hole.

[0016] Optionally, the first adjusting seat is provided with a first guide groove, the first guide groove is arranged along the first direction, each of the third positioning holes is opened at the bottom of the first guide groove, and the first limiting strip is at least partially disposed in the first guide groove;

[0017] The second adjusting seat is provided with a second guide groove, which is arranged along the second direction. Each of the fourth positioning holes is opened at the bottom of the second guide groove, and the second limiting strip is at least partially disposed in the second guide groove.

[0018] Optionally, the base is provided with a support platform, two first adjustment seats and two second adjustment seats are located on the periphery of the support platform, and two first limiting strips are at least partially disposed on the support platform, and two second limiting strips are at least partially disposed on the support platform.

[0019] Optionally, the bottom of the first guide groove is on the same horizontal plane as the surface of the support platform; the bottom of the second guide groove is on the same horizontal plane as the surface of the support platform.

[0020] Optionally, two first blocking strips and two second blocking strips are connected to the bearing surface. The two first blocking strips are arranged along the second direction, and two first guide channels are formed between the two first blocking strips and the support platform. Two first adjusting seats are respectively arranged in the two first guide channels. The two second blocking strips are arranged along the first direction, and two second guide channels are formed between the two second blocking strips and the support platform. Two second adjusting seats are respectively arranged in the two second guide channels.

[0021] Optionally, the support platform is rectangular and includes two first side surfaces arranged opposite each other along the first direction and two second side surfaces arranged opposite each other along the second direction. The two first side surfaces are parallel to and opposite to the two first blocking bars. The two sides of each first adjustment seat are respectively adjacent to the first side surface and the first blocking bar. The two second side surfaces are parallel to and opposite to the two second blocking bars. The two sides of each second adjustment seat are respectively adjacent to the second side surface and the second blocking bar.

[0022] The positioning device of this invention features two first limiting components and two second limiting components whose positions can be adjusted according to the size of the product under test, thus meeting the product's support requirements. Therefore, the positioning device of this application can be adapted to electronic products of various sizes, effectively reducing material and processing costs, and simplifying storage and management. Furthermore, the space formed by the two first limiting strips and two second limiting strips facilitates precise downward pressure from the pressure testing head, which helps improve the reliability of test results. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the positioning device of this application.

[0024] Figure 2This is a top view of the positioning device of this application in its maximum state.

[0025] Figure 3 This is a top view of the positioning device of this application in its minimum state.

[0026] Figure 4 This is a top view of the support surface of this application.

[0027] Figure 5 This is a schematic diagram showing the disassembled structure of the base, the second adjustment seat, and the second limiting strip of this application. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0029] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical and operational aspects may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for describing particular embodiments only and is not intended to limit the present application.

[0030] Although the terms first, second, etc., are used in some instances to describe various elements herein, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0031] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of a feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0032] Figure 1 This is a three-dimensional structural diagram of the positioning device of this application. Figure 2 This is a top view schematic diagram of the positioning device of this application in its maximum state. Figure 3This is a top view of the positioning device of this application in its minimum state, as shown below. Figure 1 , Figure 2 and Figure 3 As shown, the positioning device includes:

[0033] The base 12 includes a bearing surface 121, defining a first direction X and a second direction Y that are perpendicular to each other within the bearing surface 121 (e.g., ...). Figure 2 (as shown);

[0034] Two first limiting components 13 are disposed opposite each other along a first direction X. Each first limiting component 13 includes a first adjusting seat 131 and a first limiting strip 132. The two first adjusting seats 131 are adjustablely connected to the bearing surface 121 along a second direction Y, and the first limiting strip 132 is adjustablely connected to the first adjusting seat 131 along the first direction X.

[0035] Two second limiting components 14 are arranged opposite each other along the second direction Y. Each second limiting component 14 includes a second adjusting seat 141 and a second limiting bar 142. The two second adjusting seats 141 are adjustablely connected to the bearing surface 121 along the first direction X, and the second limiting bar 142 is adjustablely connected to the second adjusting seat 141 along the second direction Y.

[0036] The two first limiting strips 132 and the two second limiting strips 142 enclose and form a clearance space 101. The two first limiting strips 132 and the two second limiting strips 142 form a support surface 133 for bearing the product to be tested on the side of the clearance space 101.

[0037] When pressure testing is required on an electronic product, the positions of the two first adjustment seats 131 and the two second adjustment seats 141 are first adjusted manually. Then, the positions of the two first limit bars 132 and the two second limit bars 142 are adjusted so that the size of the clearance space 101 matches the electronic product under test. Then, the edge of the electronic product can be pressed against the support surface 133 by the positioning device. Finally, the testing equipment is used to apply pressure to the electronic product to test its structural strength or connection reliability.

[0038] The two first limiting components 13 and two second limiting components 14 of the positioning device of this application can adjust their positions according to the size of the product under test, so as to meet the support requirements of the product. Therefore, the product pressure testing positioning device of this application can be adapted to electronic products of various sizes, effectively reducing material and processing costs and simplifying storage management. Moreover, the avoidance space 101 formed by the two first limiting bars 132 and the two second limiting bars 142 facilitates the precise downward pressure of the pressure testing head, which helps to improve the reliability of the test results.

[0039] Optionally, Figure 4This is a top view of the supporting surface of this application, as shown below. Figure 1 , Figure 2 and Figure 4 As shown, the ends of the two first limiting strips 132 abut against the side walls of the two second limiting strips 142, and the ends of the two second limiting strips 142 abut against the side walls of the two first limiting strips 132. The support surface 133 formed by the combination of the two first limiting strips 132 and the two second limiting strips 142 is rectangular and annular. In this embodiment, regardless of how the two first limiting components 13 and the two second limiting components 14 are adjusted, as long as the support surface 133 remains rectangular and annular, it can adapt to electronic products of different sizes. Furthermore, the rectangular and annular support surface 133 can support the four sides of the electronic product. In addition, during pressure testing, it ensures more uniform stress distribution on the electronic product, avoids localized stress concentration, and helps improve the accuracy of the test results.

[0040] Optionally, such as Figure 1 and Figure 2 As shown, product limiting blocks 134 are connected to both first limiting strips 132 and two second limiting strips 142. The four product limiting blocks 134 are arranged around the clearance space 101 and are used to limit the sides of the product under test. In this embodiment, the four product limiting blocks 134 limit the four sides of the electronic product, fixing the four sides of the electronic product to the support surface 133, ensuring testing accuracy and improving the reliability of the test results.

[0041] Optionally, the sidewall of the product limiting block 134 is vertically connected to the support surface 133 to vertically limit the electronic product to be tested.

[0042] Optionally, the product limiting block 134 is set along the length direction of the first limiting bar 132 or the second limiting bar 142.

[0043] Optionally, the bearing surface 121 is provided with a plurality of first positioning holes 102 corresponding to the two first adjusting seats 131. The plurality of first positioning holes 102 are arranged sequentially at intervals along the second direction Y. Each first adjusting seat 131 is provided with at least one first waist-shaped hole 106, and at least two first positioning holes 102 can be exposed from the first waist-shaped hole 106. Each first adjusting seat 131 is connected to the first positioning hole 102 through a first positioning member passing through the first waist-shaped hole 106. In this embodiment, each first positioning hole 102 is, for example, a screw hole, and the first positioning member is, for example, a screw. When the first positioning member is rotated to disengage from the first positioning hole 102, the position of the first adjusting seat 131 can be adjusted along the second direction Y. Then, the first adjusting seat 131 can be fixed by connecting the first positioning member to the first positioning hole 102.

[0044] Optionally, the first adjusting seat 131 is provided with two first waist-shaped holes 106, and the two first waist-shaped holes 106 are arranged opposite each other along the second direction Y.

[0045] Optionally, the bearing surface 121 is provided with a plurality of second positioning holes 103 corresponding to the two second adjusting seats 141. The plurality of second positioning holes 103 are arranged sequentially at intervals along the first direction X. Each second adjusting seat 141 is provided with at least one second oblong hole 201, and at least two second positioning holes 103 can be exposed from the second oblong hole 201. Each second adjusting seat 141 is connected to the second positioning hole 103 by a second positioning member passing through the second oblong hole 201. In this embodiment, each second positioning hole 103 is, for example, a screw hole, and the second positioning member is, for example, a screw. When the second positioning member is rotated to disengage from the second positioning hole 103, the position of the second adjusting seat 141 can be adjusted along the first direction X. Then, the second adjusting seat 141 can be fixed by connecting the second positioning member to the second positioning hole 103.

[0046] Optionally, the second adjusting seat 141 is provided with two second waist-shaped holes 201, which are arranged opposite each other along the first direction X.

[0047] Optionally, Figure 5 This is a schematic diagram showing the disassembled structure of the base, the second adjusting seat, and the second limiting strip of this application, as shown below. Figure 2 , Figure 3 and Figure 5 As shown, each first adjusting seat 131 is provided with a plurality of third positioning holes 107, which are arranged sequentially at intervals along the first direction X. Each first limiting strip 132 is provided with at least one third oblong hole 109, and at least two third positioning holes 107 can be exposed through the third oblong hole 109. Each first limiting strip 132 is connected to the third positioning hole 107 by a third positioning member passing through the third oblong hole 109. In this embodiment, each third positioning hole 107 is, for example, a screw hole, and the third positioning member is, for example, a screw. When the third positioning member is rotated to disengage from the third positioning hole 107, the position of the first limiting strip 132 can be adjusted along the first direction X. Then, the first limiting strip 132 can be fixed by connecting the third positioning member to the third positioning hole 107.

[0048] Optionally, such as Figure 2 , Figure 3 and Figure 5As shown, each second adjusting seat 141 is provided with a plurality of fourth positioning holes 202, which are arranged sequentially at intervals along the second direction Y. Each second limiting strip 142 is provided with at least one fourth oblong hole 204, and at least two fourth positioning holes 202 can protrude from the fourth oblong hole 204. Each second limiting strip 142 is connected to the fourth positioning hole 202 by a fourth positioning member passing through the fourth oblong hole 204. In this embodiment, each fourth positioning hole 202 is, for example, a screw hole, and the fourth positioning member is, for example, a screw. When the fourth positioning member is rotated to disengage from the fourth positioning hole 202, the position of the second limiting strip 142 can be adjusted along the second direction Y. Then, the second limiting strip 142 can be fixed by connecting the fourth positioning member to the fourth positioning hole 202.

[0049] Optionally, such as Figure 2 , Figure 3 and Figure 5 As shown, the first adjusting seat 131 is provided with a first guide groove 108, which is arranged along the first direction X. Each third positioning hole 107 is formed at the bottom of the first guide groove 108. The first limiting strip 132 is at least partially disposed in the first guide groove 108, and the first guide groove 108 is used to guide the first limiting strip 132. In this embodiment, the first guide groove 108 is located between the two first waist-shaped holes 106.

[0050] Optionally, such as Figure 5 As shown, the second adjusting seat 141 is provided with a second guide groove 203, which is arranged along the second direction Y. Each fourth positioning hole 202 is opened at the bottom of the second guide groove 203. The second limiting strip 142 is at least partially disposed in the second guide groove 203, and the second guide groove 203 is used to guide the second limiting strip 142. In this embodiment, the second guide groove 203 is located between the two second waist-shaped holes 201.

[0051] Optionally, such as Figure 1 and Figure 3 As shown, a support platform 122 is provided on the base 12. Two first adjusting seats 131 and two second adjusting seats 141 are located around the support platform 122. Two first limiting bars 132 and two second limiting bars 142 are at least partially disposed on the support platform 122. In this embodiment, the support platform 122 is used to support the two first limiting bars 132 and the two second limiting bars 142, thereby improving the stability of the electronic product pressure test.

[0052] Optionally, the bottom of the first guide groove 108 is on the same horizontal plane as the surface of the support platform 122, meaning that the first adjusting seat 131 and the support platform 122 can jointly support the first limiting strip 132, further improving test stability; the bottom of the second guide groove 203 is on the same horizontal plane as the surface of the support platform 122, meaning that the second adjusting seat 141 and the support platform 122 can jointly support the second limiting strip 142, further improving test stability.

[0053] Optionally, such as Figure 1 and Figure 5 As shown, two first blocking bars 123 and two second blocking bars 124 are connected to the bearing surface 121. The two first blocking bars 123 are arranged along the second direction Y, and two first guide channels 104 are formed between the two first blocking bars 123 and the support platform 122. Two first adjusting seats 131 are respectively arranged in the two first guide channels 104, and the first guide channels 104 are used to guide the first adjusting seats 131. The two second blocking bars 124 are arranged along the first direction X, and two second guide channels 105 are formed between the two second blocking bars 124 and the support platform 122. Two second adjusting seats 141 are respectively arranged in the two second guide channels 105, and the second guide channels 105 are used to guide the second adjusting seats 141.

[0054] Optionally, such as Figure 1 and Figure 5 As shown, the support platform 122 is rectangular and includes two first side surfaces arranged opposite each other along the first direction X and two second side surfaces arranged opposite each other along the second direction Y. The two first side surfaces are parallel to and opposite to the two first blocking bars 123. The two sides of each first adjusting seat 131 are respectively adjacent to the first side surface and the first blocking bar 123. The two second side surfaces are parallel to and opposite to the two second blocking bars 124. The two sides of each second adjusting seat 141 are respectively adjacent to the second side surface and the second blocking bar 124.

[0055] The specific steps for positioning the product to be tested using the positioning device in this application include:

[0056] First, manually rotate the first positioning component to disengage it from the first positioning hole 102, and rotate the second positioning component to disengage it from the second positioning hole 103. Then, adjust the two first adjustment seats 131 and the two second adjustment seats 141 to the appropriate positions according to the size of the product to be tested. After that, rotate the first positioning component to engage with the first positioning hole 102, and rotate the second positioning component to engage with the second positioning hole 103.

[0057] Then, manually rotate the third positioning member to disengage it from the third positioning hole 107, and rotate the fourth positioning member to disengage it from the fourth positioning hole 202. Adjust the positions of the two first limiting strips 132 and the two second limiting strips 142 so that the ends of the two first limiting strips 132 abut against the side walls of the two second limiting strips 142, and the ends of the two second limiting strips 142 abut against the side walls of the two first limiting strips 132. At this time, the support surface 133 formed by the combination of the two first limiting strips 132 and the two second limiting strips 142 is rectangular. Then rotate the third positioning member to engage with the third positioning hole 107, and rotate the fourth positioning member to engage with the fourth positioning hole 202.

[0058] Finally, the edge of the electronic product to be tested is placed against the support surface 133.

[0059] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Furthermore, the structures or structural features involved can be arbitrarily combined and superimposed. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A positioning device, characterized in that, include: The base includes a bearing surface, and defines a first direction and a second direction that are perpendicular to each other within the bearing surface. Two first limiting components are arranged opposite each other along the first direction. Each first limiting component includes a first adjusting seat and a first limiting strip. The two first adjusting seats are adjustablely connected to the bearing surface along the second direction, and the first limiting strip is adjustablely connected to the first adjusting seat along the first direction. as well as Two second limiting components are arranged opposite each other along the second direction. Each second limiting component includes a second adjusting seat and a second limiting bar. The two second adjusting seats are adjustablely connected to the bearing surface along the first direction, and the second limiting bar is adjustablely connected to the second adjusting seat along the second direction. The two first limiting strips and the two second limiting strips enclose a clearance space, and the side of the two first limiting strips and the two second limiting strips near the clearance space forms a support surface for bearing the product to be tested.

2. The positioning device as described in claim 1, characterized in that, The ends of the two first limiting strips abut against the side walls of the two second limiting strips, and the ends of the two second limiting strips abut against the side walls of the two first limiting strips. The support surface formed by the combination of the two first limiting strips and the two second limiting strips is a rectangular ring.

3. The positioning device as described in claim 2, characterized in that, Each of the two first limiting strips and the two second limiting strips is connected to a product limiting block. The four product limiting blocks are arranged around the clearance space and are used to limit the side of the product to be tested.

4. The positioning device as described in claim 1, characterized in that, The bearing surface is provided with a plurality of first positioning holes corresponding to the two first adjustment seats. The plurality of first positioning holes are arranged at intervals along the second direction. Each first adjustment seat is provided with at least one first waist-shaped hole. Each first adjustment seat is connected to the first positioning hole by a first positioning member passing through the first waist-shaped hole. The bearing surface is provided with a plurality of second positioning holes corresponding to the two second adjustment seats. The plurality of second positioning holes are arranged sequentially at intervals along the first direction. Each second adjustment seat is provided with at least one second waist-shaped hole. Each second adjustment seat is connected to the second positioning hole through a second positioning member passing through the second waist-shaped hole.

5. The positioning device as described in claim 1, characterized in that, Each of the first adjusting seats is provided with a plurality of third positioning holes, and the plurality of third positioning holes are arranged sequentially at intervals along the first direction. Each of the first limiting strips is provided with at least one third waist-shaped hole, and each of the first limiting strips is connected to the third positioning hole through the third waist-shaped hole via a third positioning member. Each of the second adjusting seats is provided with a plurality of fourth positioning holes, which are arranged sequentially at intervals along the second direction. Each of the second limiting strips is provided with at least one fourth waist-shaped hole, and each of the second limiting strips is connected to the fourth positioning hole through a fourth positioning member passing through the fourth waist-shaped hole.

6. The positioning device as described in claim 5, characterized in that, The first adjusting seat is provided with a first guide groove, which is arranged along the first direction. Each of the third positioning holes is opened at the bottom of the first guide groove, and the first limiting strip is at least partially disposed in the first guide groove. The second adjusting seat is provided with a second guide groove, which is arranged along the second direction. Each of the fourth positioning holes is opened at the bottom of the second guide groove, and the second limiting strip is at least partially disposed in the second guide groove.

7. The positioning device as described in claim 6, characterized in that, The base is provided with a support platform, two first adjustment seats and two second adjustment seats are located on the periphery of the support platform, and two first limiting strips are at least partially disposed on the support platform, and two second limiting strips are at least partially disposed on the support platform.

8. The positioning device as described in claim 7, characterized in that, The bottom of the first guide groove is on the same horizontal plane as the surface of the support platform; the bottom of the second guide groove is on the same horizontal plane as the surface of the support platform.

9. The positioning device as described in claim 7, characterized in that, Two first blocking strips and two second blocking strips are connected to the bearing surface. The two first blocking strips are arranged along the second direction. The two first blocking strips and the support platform form two first guide channels. The two first adjusting seats are respectively arranged in the two first guide channels. Two second blocking strips are arranged along the first direction, and two second guide channels are formed between the two second blocking strips and the support platform. Two second adjusting seats are respectively arranged in the two second guide channels.

10. The positioning device as described in claim 9, characterized in that, The support platform is rectangular and includes two first side surfaces arranged opposite each other along the first direction and two second side surfaces arranged opposite each other along the second direction. The two first side surfaces are parallel to and opposite to the two first blocking bars. The two sides of each first adjustment seat are respectively adjacent to the first side surface and the first blocking bar. The two second side surfaces are parallel to and opposite to the two second blocking bars. The two sides of each second adjustment seat are respectively adjacent to the second side surface and the second blocking bar.

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