positioning device

Abstract

The application provides a positioning device for positioning a workpiece with a receiving groove to improve the positioning efficiency of the workpiece, which comprises a bearing assembly for bearing the workpiece; a plurality of sets of pressing assemblies which are arranged at intervals and movably penetrate the bearing assembly, each set of the pressing assemblies comprising a rotating member movably penetrating the bearing assembly, a pressing member connected to the rotating member, and a rotating member connected to the rotating member; a driving assembly connected to the plurality of sets of the pressing assemblies and comprising a linkage member and a pressing driving member connected to the linkage member, the linkage member being arranged on a side of the bearing assembly away from the pressing member and movably connected to the rotating member; and a poking assembly connected to the bearing assembly and comprising a poking member and a poking driving member, the poking member being provided with a through groove and a plurality of poking grooves, the through groove penetrating the poking member in a direction of the bearing assembly pointing to the linkage member, the plurality of poking grooves being arranged at intervals on groove walls of the through groove and corresponding to the plurality of rotating members one by one, the poking grooves receiving the corresponding rotating members, and the poking driving member being arranged on the linkage member and connected to the poking member.

Description

Technical Field

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

[0002] Currently, after a product (such as a mobile phone case) is formed, workers typically need to use several screws to simultaneously pass them through holes in a positioning fixture and the wall of the storage groove at the bottom of the product, thereby locking the product into the positioning fixture for subsequent secondary processing. However, the above screw-fastening process involves numerous steps and is time-consuming, resulting in reduced positioning efficiency. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a positioning device to improve positioning efficiency.

[0004] This application provides a positioning device for positioning a workpiece with a receiving groove. The positioning device includes: A support component is configured to support the workpiece; Multiple sets of holding components are spaced apart and movably pass through the bearing component. Each set of holding components includes a rotating component, a holding component, and a rotating component. The rotating component is movably pass through the bearing component. One end of the holding component is connected to the rotating component. The holding component is configured to be inserted into the storage groove and abut against the groove wall of the storage groove adjacent to the bearing component. The rotating component is connected to the rotating component. A drive assembly, connected to multiple sets of the pressing assemblies, includes a linkage member and a pressing drive member. The linkage member is located on the side of the bearing assembly opposite to the pressing member and is movably connected to the rotating member. The pressing drive member is connected to the linkage member and configured to drive the linkage member to move the rotating member and the pressing member along the direction from the bearing assembly to the linkage member, so that the pressing member presses the workpiece against the bearing assembly; and A toggle assembly, connected to the support assembly, includes a toggle member and a toggle drive member. The toggle member has a through groove and multiple toggle slots. The through groove passes through both sides of the toggle member in the direction from the support assembly to the linkage member. The multiple toggle slots are spaced apart on the groove wall of the through groove and correspond one-to-one with the multiple rotating members. The toggle slots receive the corresponding rotating members. The toggle drive member is located on the linkage member and connected to the toggle member. The toggle drive member is configured to drive the toggle member to slide relative to the linkage member, so that the groove wall of the toggle slot actuates the rotating member, causing the rotating member and the holding member to rotate.

[0005] In use, the aforementioned positioning device first carries the workpiece, allowing the holding member to be inserted into the workpiece's receiving slot. Then, the actuating drive drives the actuating member to slide relative to the linkage member. The slot walls of the actuating grooves actuate corresponding rotating members, causing them to rotate and the holding member to abut against the slot wall of the receiving slot adjacent to the carrying component. Finally, the holding drive drives the linkage member to move multiple rotating members along the direction from the carrying component to the linkage member, causing multiple holding members to press the workpiece against the carrying component. Thus, by actuating multiple rotating members through the slot walls of the actuating member, causing multiple rotating members to abut against the slot wall of the receiving slot, and by driving the linkage member through the holding drive to move multiple holding members synchronously, the multiple holding members press the workpiece against the carrying component, achieving rapid workpiece positioning and improving positioning efficiency.

[0006] In some embodiments, the rotating element includes: A rotating body is sleeved on the rotating component and connected to the rotating component; A supporting body protrudes from the side wall of the rotating body and is inserted into the actuating groove. The supporting body drives the rotating body and the rotating component to rotate under the pushing force of the groove wall.

[0007] In some embodiments, the rotating body has two abutting inclined surfaces on the side facing the abutting body. The two abutting inclined surfaces are located on both sides of the abutting body and are respectively connected to the side wall of the abutting body. The abutting inclined surfaces are inclined relative to the side wall of the abutting body.

[0008] In some embodiments, the wall of the actuating groove and the wall of the through groove are connected by an arc transition.

[0009] In some embodiments, the linkage member is provided with a communicating groove and a receiving groove, the communicating groove being adjacent to the bearing component relative to the receiving groove, and the cross-sectional area of ​​the communicating groove being smaller than the cross-sectional area of ​​the receiving groove in the direction of movement of the actuating member; The rotating component includes a main body and a rotating body. The main body is movably disposed through the bearing assembly and the communicating groove. The main body is connected to the rotating component and the pressing component respectively. The rotating body is rotatably disposed in the receiving groove and connected to the main body.

[0010] In some embodiments, the linkage includes: A linkage body, one side of which is connected to the pressing drive member, and the other side of which is provided with the receiving groove; A connecting body is located on the side of the linkage body away from the pressing drive member and is detachably connected to the linkage body. The actuating member and the actuating drive member are both located on the connecting body. The connecting body is provided with the communicating groove, which is coaxially arranged with the receiving groove.

[0011] In some embodiments, the connecting body has a guide groove on the side opposite to the linkage body, and the connecting groove is located at the bottom of the guide groove. The guide groove is configured to receive the actuating member to guide the movement direction of the actuating member.

[0012] In some embodiments, the carrier component includes: A support member is disposed on one side of the linkage member and is configured to support the workpiece; A guide member, movably passing through the linkage member and connected to the support member, is configured to guide the movement direction of the linkage member; and The base is connected to the end of the guide member away from the carrier member, the base is connected to the pressing drive member, and a storage space is formed between the base and the carrier member. The storage space is configured to accommodate the toggle assembly and part of the pressing assembly.

[0013] In some embodiments, the carrier includes: The support body is connected to the end of the guide member away from the base; A carrier is disposed on the side of the support body away from the linkage member. In the direction of movement of the actuating member, the cross-sectional area of ​​the carrier body is smaller than that of the support body. The rotating member passes through the support body and the carrier body in sequence. The carrier body is configured to support the workpiece.

[0014] In some embodiments, the carrier further includes: The first positioning body and the second positioning body are offset from each other along the movement direction of the actuating member and are located on the side of the carrier opposite to the support body. The first positioning body and the second positioning body are configured to position the workpiece. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the positioning device and the workpiece adapted thereto, provided in the embodiments of this application.

[0016] Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the workpiece.

[0017] Figure 3 for Figure 1 A three-dimensional structural diagram of the holding component and the actuating component in the positioning device shown.

[0018] Figure 4 for Figure 1 The diagram shows an exploded view of the linkage components in the positioning device.

[0019] Explanation of main component symbols: Positioning device 100, bearing assembly 10, bearing element 11, support body 111, bearing body 112, first positioning body 113, second positioning body 114, guide element 12, base 13, storage space 14, pressing assembly 20, rotating element 21, main body 211, rotating body 212, pressing element 22, rotating element 23, rotating body 231, abutting inclined surface 2311, abutting body 232, driving assembly 30, linkage element 31, linkage body 311, receiving groove 3111, connecting body 312, guide groove 3121, connecting groove 3122, pressing driving element 32, actuating assembly 40, actuating element 41, through groove 411, actuating groove 412, actuating driving element 42, workpiece 200, storage groove 210. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0024] Please see Figure 1 This application provides a positioning device 100, which includes a supporting component 10, a holding component 20 movably passing through the supporting component 10, a driving component 30 connected to the holding component 20, and a toggle component 40 connected to the supporting component 10. The number of holding components 20 is multiple. The positioning device 100 is used to position a workpiece 200. Please refer to... Figure 2 The workpiece 200 has a receiving groove 210 on one surface. In this embodiment, the workpiece 200 can be a mobile phone case.

[0025] Please see Figure 1 The supporting assembly 10 includes a supporting member 11 disposed adjacent to the actuating assembly 40, a guide member 12 connected to the supporting member 11, and a base 13 connected to the guide member 12. The supporting member 11 is disposed on one side of the actuating assembly 40 and is configured to support the workpiece 200. The guide member 12 is generally rod-shaped, with one end connected to the supporting member 11 and the other end connected to the base 13. A storage space 14 is formed between the base 13 and the supporting member 11. The storage space 14 is configured to accommodate the actuating assembly 40 and part of the pressing assembly 20.

[0026] Thus, through the above arrangement, the support member 11 can support the workpiece 200 so that the actuating component 40 and multiple sets of pressing components 20 cooperate to position the workpiece 200 supported on the support member 11; the storage space 14 formed between the support member 11 and the base 13 can accommodate the actuating component 40 and part of the pressing components 20, so as to optimize the layout of the positioning device 100 and make the structure of the positioning device 100 more compact.

[0027] Please see Figure 1 The carrier 11 includes a support body 111 connected to the guide 12, a carrier body 112 connected to the support body 111, and a first positioning body 113 and a second positioning body 114 connected to and spaced apart from the carrier body 112. The support body 111 is generally plate-shaped and connected to the end of the guide 12 away from the base 13. The carrier body 112 is generally block-shaped and located on the side of the support body 111 away from the base 13. In the direction perpendicular to the direction of the carrier body 112 pointing towards the support body 111, the cross-sectional area of ​​the carrier body 112 is smaller than the cross-sectional area of ​​the support body 111. The carrier body 112 is configured to carry the workpiece 200. In the direction perpendicular to the direction of the carrier body 112 pointing towards the support body 111, the first positioning body 113 and the second positioning body 114 are offset and located on the side of the carrier body 112 away from the support body 111, and are respectively connected to the carrier body 112. The first positioning body 113 and the second positioning body 114 are configured to position the workpiece 200.

[0028] Thus, through the above arrangement, since the cross-sectional area of ​​the carrier 112 is smaller than that of the support 111, the contact area between the workpiece 200 and the carrier 11 is reduced, which is beneficial for subsequent secondary processing of the outer surface of the workpiece 200. Through the staggered arrangement of the first positioning body 113 and the second positioning body 114, the workpiece 200 can be stably positioned on the carrier 112, preventing the workpiece 200 from being placed in reverse or shifting on the carrier 112, so that the workpiece 200 maintains a preset orientation on the carrier 112, thereby improving the positioning stability.

[0029] Please see Figure 1 and Figure 3 Multiple sets of pressing components 20 are spaced apart and movably inserted into the support component 10. In this embodiment, there are ten sets of pressing components 20, which are spaced apart. Each set of pressing components 20 includes a rotating member 21 movably inserted into the support component 10, a pressing member 22 connected to the rotating member 21, and a rotating member 23 connected to the rotating member 21. The rotating member 21 movably inserts into the support component 11 and is connected to the drive component 30. The pressing member 22 is generally block-shaped and is connected to one end of the rotating member 21. The pressing member 22 is configured to be inserted into the receiving groove 210 of the workpiece 200 and abut against the groove wall of the receiving groove 210 adjacent to the support component 11. The rotating member 23 is sleeved on the rotating member 21 and connected to the rotating member 21.

[0030] Thus, through the above arrangement, multiple holding members 22 are inserted into the receiving groove 210 of the workpiece 200 and respectively abut against different positions of the groove wall of the receiving groove 210 adjacent to the carrier member 11. The driving component 30 drives multiple rotating members 21 to move the corresponding holding members 22 synchronously closer to the carrier member 11, so that multiple holding members 22 synchronously press the workpiece 200 to the carrier member 11, thereby positioning the workpiece 200 to the carrier member 11 and improving the positioning efficiency.

[0031] Please see Figure 1 and Figure 3 The rotating member 21 includes a main body 211 connected to the pressing member 22 and a rotating body 212 connected to the main body 211. The main body 211 is generally rod-shaped and is movably inserted through the bearing member 11 and connected to the rotating member 23 and the pressing member 22 respectively. The rotating body 212 is connected to the main body 211.

[0032] Please see Figure 3 The rotating component 23 includes a rotating body 231 connected to the main body 211 and a supporting body 232 connected to the rotating body 231. The rotating body 231 is generally block-shaped and is sleeved on and connected to the main body 211. The supporting body 232 is generally rod-shaped and protrudes from the side wall of the rotating body 231.

[0033] The rotating body 231 has two abutting inclined surfaces 2311 on the side facing the abutting body 232. The two abutting inclined surfaces 2311 are located on both sides of the abutting body 232 and connected to the side wall of the abutting body 232. The abutting inclined surfaces 2311 are inclined relative to the side wall of the abutting body 232.

[0034] Please see Figure 1 The drive assembly 30 includes a linkage 31 movably connected to the rotating member 21 and a pressing drive 32 connected to the linkage 31. The linkage 31 is located on the side of the support member 11 opposite to the pressing member 22 and is movably connected to the rotating member 21. A guide member 12 movably passes through the linkage 31 to guide the movement direction of the linkage 31. The pressing drive 32 is located on the base 13 and connected to the linkage 31. The pressing drive 32 is configured to drive the linkage 31 to move the rotating member 21 and the pressing member 22 along the direction from the support member 11 to the linkage 31, so that the pressing member 22 presses the workpiece 200 against the support member 11. In this embodiment, the pressing drive 32 can be a cylinder.

[0035] Thus, through the above configuration, the pressing drive 32 drives the linkage 31 to move multiple rotating bodies 212 synchronously along the direction of the bearing 11 pointing to the linkage 31, so that the linkage 31 drives multiple pressing parts 22 to perform pressing operations, thereby improving positioning efficiency.

[0036] Please see Figure 1 and Figure 4 The linkage 31 includes a linkage body 311 connected to the pressing drive 32 and a connecting body 312 detachably connected to the linkage body 311. The linkage body 311 is generally plate-shaped, with one side connected to the pressing drive 32 and the other side of the linkage body 31 having a receiving groove 3111. The connecting body 312 is located on the side of the linkage body 311 away from the pressure-holding drive member 32. The connecting body 312 is detachably connected to the linkage body 311. The connecting body 312 is provided with a guide groove 3121 and a connecting groove 3122. The guide groove 3121 is located on the side of the connecting body 312 facing the support member 11. The connecting groove 3122 is located at the bottom of the guide groove 3121 and passes through the connecting body 312. The connecting groove 3122 is coaxially arranged with the receiving groove 3111 and is connected to it. The connecting groove 3122 is adjacent to the support member 11 relative to the receiving groove 3111. In the direction perpendicular to the direction of the linkage member 31 pointing to the support member 11, the cross-sectional area of ​​the connecting groove 3122 is smaller than the cross-sectional area of ​​the receiving groove 3111. The main body 211 is movably inserted through the connecting groove 3122. The rotating body 212 is rotatably disposed in the receiving groove 3111 and connected to the main body 211. There are multiple connecting grooves 3122 and multiple receiving grooves 3111, and each of the multiple connecting grooves 3122 and multiple receiving grooves 3111 corresponds to a one-to-one main body 211 of multiple rotating parts 21.

[0037] Thus, through the above arrangement, the connecting body 312 abuts against the rotating body 212 into the receiving groove 3111, so that the rotating part 21 and the linkage 31 form a movable connection structure, ensuring that the linkage 31 drives multiple rotating parts 21 to move synchronously along the direction of the bearing 11 pointing to the linkage 31. At the same time, each rotating part 21 can also rotate relative to the linkage 31, thereby driving each pressing part 22 to abut against the groove wall of the receiving groove 210, thereby ensuring positioning stability.

[0038] Please see Figure 1 and Figure 3 The actuating assembly 40 includes an actuating member 41 slidably disposed on the linkage member 31 and an actuating drive member 42 connected to the actuating member 41. The actuating member 41 is generally a frame, and has a through groove 411 and multiple actuating grooves 412. The through groove 411 passes through both sides of the actuating member 41 in the direction from the bearing member 11 to the linkage member 31. Multiple rotating members 21 are movably disposed through the through groove 411. The multiple actuating grooves 412 are spaced apart on the groove wall of the through groove 411 and correspond one-to-one with multiple rotating members 23. The actuating grooves 412 receive the corresponding rotating members 23. The actuating drive member 42 is disposed on the linkage member 31 and connected to the actuating member 41. The actuating drive member 42 is configured to drive the actuating member 41 to slide relative to the linkage member 31, so that the groove wall of the actuating groove 412 actuates the rotating members 23, causing the rotating members 21 and the holding member 22 to rotate. In this embodiment, the actuating drive member 42 can be a cylinder.

[0039] Thus, through the above configuration, the toggle drive 42 drives the toggle member 41 to slide relative to the linkage member 31, so that the groove walls of the multiple toggle grooves 412 respectively push against the corresponding rotating member 23, so that the rotating member 23 drives the rotating member 21 and the pressing member 22 to rotate under the toggle of the groove walls of the toggle grooves 412, so that the pressing member 22 abuts against the groove wall of the storage groove 210, which is beneficial for the subsequent pressing operation of the pressing member 22 driven by the pressing drive 32.

[0040] Please see Figure 3 The actuating groove 412 houses the support body 232 of the rotating part 23. When the actuating part 41 slides relative to the linkage 31 under the drive of the actuating drive part 42, the groove wall of the actuating groove 412 pushes against the side wall of the support body 232, so that the support body 232 drives the rotating body 231 and the rotating body 212 to rotate, so that the pressing part 22 rotates into the receiving groove 210, thereby making the pressing part 22 abut against the groove wall of the receiving groove 210, ensuring that the pressing part 22 stably presses the workpiece 200 to the carrier 11.

[0041] Furthermore, when the holding member 22 is in the initial position or abuts against the wall of the receiving groove 210, one of the abutting inclined surfaces 2311 abuts against the wall of the through groove 411 adjacent to the actuating groove 412, thereby restricting the rotating member 23 from continuing to rotate and ensuring that the holding member 22 is stably in the initial position or stably abuts against the wall of the receiving groove 210.

[0042] The arc-shaped transition between the wall of the actuating groove 412 and the wall of the through groove 411 facilitates the smooth movement of the rotating body 231 from the actuating groove 412 to the through groove 411, ensuring that the supporting inclined surface 2311 is stably abutted against the wall of the through groove 411.

[0043] The working process of the positioning device 100 described above is roughly as follows: First, the carrier 112 carries the workpiece 200 so that the holding member 22 is inserted into the receiving groove 210 of the workpiece 200. The first positioning body 113 and the second positioning body 114 position the workpiece 200 so that the workpiece 200 maintains a preset orientation. Then, the toggle drive 42 drives the toggle 41 to slide relative to the linkage 31, and the groove wall of the toggle groove 412 toggle the corresponding rotating member 23, so that the rotating member 23 drives the rotating member 21 and the pressing member 22 to rotate, so that the pressing member 22 abuts against the groove wall of the storage groove 210 adjacent to the bearing member 11. Finally, the pressing drive 32 drives the linkage 31 to move multiple rotating parts 21 in the direction of the bearing assembly 10 pointing to the linkage 31, so that the multiple pressing parts 22 press the workpiece 200 to the bearing assembly 10, thereby realizing the rapid completion of the workpiece 200 positioning operation and improving the positioning efficiency.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A positioning device for positioning a workpiece having a receiving groove, characterized in that, The positioning device includes: A support component is configured to support the workpiece; Multiple sets of holding components are spaced apart and movably pass through the bearing component. Each set of holding components includes a rotating component, a holding component, and a rotating component. The rotating component is movably pass through the bearing component. One end of the holding component is connected to the rotating component. The holding component is configured to be inserted into the storage groove and abut against the groove wall of the storage groove adjacent to the bearing component. The rotating component is connected to the rotating component. A drive assembly, connected to multiple sets of the pressing assemblies, includes a linkage member and a pressing drive member. The linkage member is located on the side of the bearing assembly opposite to the pressing member and is movably connected to the rotating member. The pressing drive member is connected to the linkage member and configured to drive the linkage member to move the rotating member and the pressing member along the direction from the bearing assembly to the linkage member, so that the pressing member presses the workpiece against the bearing assembly; and A toggle assembly, connected to the support assembly, includes a toggle member and a toggle drive member. The toggle member has a through groove and multiple toggle slots. The through groove passes through both sides of the toggle member in the direction from the support assembly to the linkage member. The multiple toggle slots are spaced apart on the groove wall of the through groove and correspond one-to-one with the multiple rotating members. The toggle slots receive the corresponding rotating members. The toggle drive member is located on the linkage member and connected to the toggle member. The toggle drive member is configured to drive the toggle member to slide relative to the linkage member, so that the groove wall of the toggle slot actuates the rotating member, causing the rotating member and the holding member to rotate.

2. The positioning device as described in claim 1, characterized in that, The rotating component includes: A rotating body is sleeved on the rotating component and connected to the rotating component; A support body protrudes from the side wall of the rotating body and is inserted into the actuating groove. The support body drives the rotating body and the rotating component to rotate under the pushing force of the groove wall.

3. The positioning device as described in claim 2, characterized in that, The rotating body has two abutting inclined surfaces on the side facing the abutting body. The two abutting inclined surfaces are located on both sides of the abutting body and are respectively connected to the side wall of the abutting body. The abutting inclined surfaces are inclined relative to the side wall of the abutting body.

4. The positioning device as described in claim 1, characterized in that, The wall of the actuating groove and the wall of the through groove are connected by an arc-shaped transition.

5. The positioning device as described in claim 1, characterized in that, The linkage component is provided with a connecting groove and a receiving groove. The connecting groove is adjacent to the bearing component relative to the receiving groove. In the direction of movement of the actuating component, the cross-sectional area of ​​the connecting groove is smaller than the cross-sectional area of ​​the receiving groove. The rotating component includes a main body and a rotating body. The main body is movably disposed through the bearing assembly and the communicating groove. The main body is connected to the rotating component and the pressing component respectively. The rotating body is rotatably disposed in the receiving groove and connected to the main body.

6. The positioning device as described in claim 5, characterized in that, The linkage component includes: A linkage body, one side of which is connected to the pressing drive member, and the other side of which is provided with the receiving groove; A connecting body is located on the side of the linkage body away from the pressing drive member and is detachably connected to the linkage body. The actuating member and the actuating drive member are both located on the connecting body. The connecting body is provided with the communicating groove, which is coaxially arranged with the receiving groove.

7. The positioning device as described in claim 6, characterized in that, The connecting body is provided with a guide groove on the side opposite to the linkage body, and the connecting groove is located at the bottom of the guide groove. The guide groove is configured to accommodate the actuating member in order to guide the movement direction of the actuating member.

8. The positioning device as described in claim 1, characterized in that, The carrier component includes: A support member is disposed on one side of the linkage member and is configured to support the workpiece; A guide member, movably passing through the linkage member and connected to the support member, is configured to guide the movement direction of the linkage member; and The base is connected to the end of the guide member away from the carrier member, the base is connected to the pressing drive member, and a storage space is formed between the base and the carrier member. The storage space is configured to accommodate the toggle assembly and part of the pressing assembly.

9. The positioning device as described in claim 8, characterized in that, The carrier includes: The support body is connected to the end of the guide member away from the base; A carrier is disposed on the side of the support body away from the linkage member. In the direction of movement of the actuating member, the cross-sectional area of ​​the carrier body is smaller than that of the support body. The rotating member passes through the support body and the carrier body in sequence. The carrier body is configured to support the workpiece.

10. The positioning device as described in claim 9, characterized in that, The carrier also includes: The first positioning body and the second positioning body are offset from each other along the movement direction of the actuating member and are located on the side of the carrier opposite to the support body. The first positioning body and the second positioning body are configured to position the workpiece.

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