Positioning device

Abstract

The utility model relates to the technical field of machining positioning, in particular to a positioning device. The positioning device comprises a material clamping jig and a positioning unit. The material clamping jig comprises a carrier plate provided with a first containing hole and a positioning hole, a plurality of material carrying pieces connected to the carrier plate, arranged around the first containing hole and used for carrying workpieces, and a plurality of material pressing mechanisms connected to the carrier plate, arranged corresponding to the first containing hole and used for pressing the workpieces. The positioning unit comprises a supporting plate provided with a second containing hole, a plurality of clamp opening driving pieces connected to the supporting plate, a first positioning mechanism connected to the supporting plate and used for positioning the carrier plate, and a second positioning mechanism comprising a limiting assembly and an abutting-pushing assembly which are connected to the supporting plate, the limiting assembly comprises a limiting piece arranged in the second containing hole, and the abutting-pushing assembly comprises an abutting-pushing piece arranged in the second containing hole. The abutting and pushing assembly comprises an abutting and pushing piece arranged in the second containing hole. According to the positioning device, the positioning precision of the workpiece can be improved, and scratches, bumping damage and the like caused to the workpiece are reduced.

Description

Technical Field

[0001] This application relates to the technical field of processing positioning, and specifically relates to a positioning device. Background Art

[0002] During the production process of electronic devices, processing operations such as laser marking need to be performed on products. High precision is required for the position of the products during processing. Therefore, jigs are needed to position the products to improve processing accuracy. Currently, products are usually manually loaded into jigs. However, for products with irregular shapes, the positioning accuracy of manual loading is low, and the products are easily scratched or bruised during the clamping process. Summary of the Utility Model

[0003] In view of the above, it is necessary to provide a positioning device to improve the positioning accuracy of workpieces and reduce scratches, bruises, etc. caused to the workpieces.

[0004] An embodiment of this application provides a positioning device, including: a material clamping jig, including: a carrier plate, which is provided with a first accommodation hole and a positioning hole spaced from the first accommodation hole; a plurality of material loading members, all connected to the carrier plate and arranged around the first accommodation hole, and the plurality of material loading members are used for carrying workpieces; and a plurality of pressing mechanisms, all connected to the carrier plate and corresponding to the first accommodation hole, and the plurality of pressing mechanisms are used for pressing the workpieces; and a positioning unit, including: a support plate, which is provided with a second accommodation hole, and the support plate is used for carrying the carrier plate; a plurality of clamp opening driving members, all connected to one side of the support plate for carrying the carrier plate; a first positioning mechanism, connected to the support plate, and used for cooperating with the positioning hole to position the carrier plate; and a second positioning mechanism, including a limiting component and a pushing component both connected to the support plate, the limiting component includes a limiting member movably arranged in the second accommodation hole, and the pushing component includes a pushing member movably arranged in the second accommodation hole and opposite to the limiting member; wherein, when the carrier plate is placed on the support plate, the first accommodation hole corresponds to the second accommodation hole, the limiting member and the pushing member both extend into the first accommodation hole, the plurality of clamp opening driving members respectively correspond to the plurality of pressing mechanisms one by one, the clamp opening driving members are used for driving the corresponding pressing mechanisms to open the clamp, the limiting member in the limiting component is used for moving to a preset position, the pushing member in the pushing component is used for elastically pushing the workpiece to the limiting member to position the workpiece, and the clamp opening driving members release the pressing mechanisms so that the pressing mechanisms press the workpieces.

[0005] The above-mentioned positioning device can carry the workpiece through the material carrier in the clamping jig, and can clamp and position the workpiece with the material carrier through the pressing mechanism. When positioning the workpiece, the clamping jig is placed on the support plate of the positioning unit, and the carrier of the clamping jig can be positioned through the first positioning mechanism to improve the positioning accuracy of the carrier on the carrier. The pressing mechanism can be driven to open the clamp by the clamping drive to facilitate the placement of the workpiece on the carrier. After the workpiece is placed on the carrier, the workpiece can be accurately positioned through the cooperation of the limiting component and the push component of the second positioning mechanism. After the second positioning mechanism accurately positions the workpiece, the clamping drive releases the pressing mechanism to allow the pressing mechanism to clamp the workpiece. The above-mentioned positioning device can effectively improve the positioning accuracy of the workpiece by the clamping jig through the cooperation of the positioning unit and the clamping jig, and reduce human work operations, which can reduce the risk of scratches and bumps when positioning the workpiece.

[0006] In some embodiments, the positioning device also includes a lifting unit, which includes: a base plate, connected to the side of the support plate away from the clamping drive member and spaced apart from the support plate; a lifting assembly, including a lifting drive member connected to the base plate facing the support plate and a plurality of lifting members connected to the lifting drive member; the support plate is also provided with a plurality of movable holes corresponding to the plurality of lifting members, and the plurality of movable holes are all opposite to the carrier plate placed on the support plate; wherein, one end of the lifting member away from the lifting drive member is movably arranged in the corresponding movable hole, and the lifting drive member is used to drive the lifting member to move toward the support plate to lift the carrier plate located on the support plate.

[0007] In some embodiments, the pressing mechanism includes a first pressing assembly, which includes: a first fixed block fixedly connected to a side of the carrier plate facing away from the support plate, the first fixed block being provided with a first through hole and a blind hole, one end of the first through hole being arranged toward the corresponding clamping drive member, and the other end being arranged near the first accommodating hole, the extension direction of the blind hole being parallel to the extension direction of the first through hole, the blind hole being spaced apart from the first through hole in a direction away from the carrier plate, and the orifice of the blind hole being arranged toward the first accommodating hole; a first pressing piece being rotatably connected to an end of the first fixed block near the first accommodating hole, and one end of the first pressing piece being opposite to the first through hole, and the other end being opposite to the blind hole; a first connecting rod being movably arranged in the blind hole and rotatably connected to the first pressing piece; and a first elastic piece being arranged in the blind hole and abutting against the first connecting rod, the first elastic piece being used to push the first connecting rod to move away from the blind hole, so that the first connecting rod drives the first pressing piece to move to abut against the workpiece.

[0008] In some embodiments, the pressing mechanism also includes a second pressing assembly, which includes: a second fixed block fixedly connected to a side of the carrier plate facing away from the support plate, the second fixed block is provided with a second through hole, one end of the second through hole is arranged toward the corresponding clamping drive member, and the other end is arranged near the first accommodating hole, the second through hole is a step hole, and the radius of the end of the second through hole facing the clamping drive member is greater than the radius of the end of the second through hole near the first accommodating hole; a second pressing member, rotatably connected to an end of the second fixed block near the first accommodating hole, and one end of the second pressing member is opposite to the second through hole; a second connecting rod, movably arranged in the second through hole and rotatably connected to the second pressing member; and a second elastic member, arranged in the second through hole and sleeved on the second connecting rod, one end of the second elastic member abuts against the step surface in the second through hole, and the other end abuts against an end of the second connecting rod away from the second pressing member, and the second elastic member is used to push the second connecting rod to move away from the second pressing member, so that the second connecting rod drives the second pressing member to move to press the workpiece.

[0009] In some embodiments, two positioning holes are provided, and the two positioning holes are spaced apart; the first positioning mechanism includes a first positioning assembly, and the first positioning assembly includes: a first positioning drive member, connected to the side of the support plate away from the clamping drive member; and a positioning column, connected to the first positioning drive member and movably inserted in the support plate, and the positioning column is provided corresponding to one of the positioning holes; wherein, the first positioning drive member is used to drive the positioning column to move toward the carrier plate, so that the positioning column is inserted into the positioning hole corresponding to the positioning column, thereby positioning the carrier plate.

[0010] In some embodiments, the first positioning mechanism also includes a second positioning assembly, the second positioning assembly including: a second positioning drive connected to the side of the support plate facing away from the clamping drive; and an expansion pin including a sleeve and a pin shaft, the sleeve being fixedly connected to the support plate for supporting one side of the carrier and being arranged corresponding to the other positioning hole, the pin shaft being connected to the second positioning drive and movably passing through the support plate, and the end of the pin shaft away from the second positioning drive member being movably arranged in the sleeve; wherein, the sleeve is used to be inserted into the corresponding positioning hole to position the carrier, and the second positioning drive is used to drive the pin shaft to move to expand the sleeve, thereby causing the sleeve to press against the inner wall of the positioning hole to fix the carrier.

[0011] In some embodiments, the first positioning mechanism also includes a third positioning assembly, and the third positioning assembly includes: a third positioning drive member, connected to a side of the support plate away from the clamping drive member, and spaced apart from the first positioning drive member in a direction away from the second accommodating hole; and a pushing member, connected to the third positioning drive member and movably inserted in the support plate; wherein the third positioning drive member is used to drive the pushing member to move toward the carrier plate so that the pushing member is held against the carrier plate, thereby positioning the carrier plate.

[0012] In some embodiments, the limit assembly also includes: a limit drive member connected to the support plate; a first fixed seat connected to the support plate for supporting a side of the carrier plate, the first fixed seat including a connecting portion and a stopping portion, the connecting portion being connected to the support plate, and the stopping portion being arranged on a side of the connecting portion facing the second accommodating hole; a sliding block connected to the limit drive member and slidably connected to the connecting portion, and arranged opposite to a side of the stopping portion away from the second accommodating hole; and a third elastic member, the two ends of the third elastic member respectively abut against the sliding block and the stopping portion for pushing the sliding block away from the stopping portion; wherein the limit member is connected to the side of the sliding block away from the connecting portion, the limit drive member is used to drive the sliding block to move toward the stopping portion, thereby driving the limit member to move toward the stopping portion, and when the sliding block abuts against the stopping portion, the limit member is located at the preset position.

[0013] In some embodiments, the limit assembly also includes a stop column, which is connected to the support plate and is spaced apart from the first fixed seat along the direction of the first fixed seat away from the first accommodating hole. The stop column is used to stop the sliding block when the third elastic member pushes the sliding block away from the stopping portion.

[0014] In some embodiments, the pushing component further includes: a pushing driver connected to the support plate; a second fixed seat connected to the support plate on the side for carrying the carrier plate, the second fixed seat is provided with a sliding hole, one end of the sliding hole faces the second accommodating hole, and the pushing member is movably inserted into the sliding hole; a sealing plate connected to the side of the second fixed seat away from the second accommodating hole and covering the end of the sliding hole facing away from the second accommodating hole; and a fourth elastic member disposed in the sliding hole, two ends of the fourth elastic member respectively abut against the pushing member and the sealing plate, and the fourth elastic member is used to push the pushing member away from the sealing plate; wherein, when the pushing component pushes the workpiece, the output end of the pushing driver is away from the pushing member, and the fourth elastic member drives the pushing member to push the workpiece to the limiting member. When the pushing component releases the workpiece, the output end of the pushing driver abuts against the pushing member and moves along the sliding hole towards the sealing plate, so that the pushing member is away from the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of the positioning device provided by an embodiment of the present application.

[0016] Figure 2 is Figure 1 a schematic structural diagram of the material clamping fixture of the positioning device shown in FIG.

[0017] Figure 3 is Figure 1 a schematic structural diagram of the positioning unit of the positioning device shown in FIG.

[0018] Figure 4 is Figure 1 a schematic structural diagram of the lifting unit of the positioning device shown in FIG.

[0019] Figure 5 is Figure 2 a schematic structural diagram of the first pressing component of the material clamping fixture shown in FIG.

[0020] Figure 6 is Figure 2 a schematic structural diagram of the second pressing component of the material clamping fixture shown in FIG.

[0021] Figure 7 is Figure 3 a schematic structural diagram of the first positioning mechanism of the positioning unit shown in FIG.

[0022] Figure 8 is Figure 3 a schematic structural diagram of the second positioning mechanism of the positioning unit shown in FIG.

[0023] Figure 9 is Figure 8Schematic diagram of the limiting component of the second positioning mechanism shown

[0024] Figure 10 For Figure 8 Schematic diagram of the pushing component of the second positioning mechanism shown

[0025] Description of main component symbols

[0026] Positioning device 100

[0027] Material clamping fixture 10

[0028] Carrier plate 11

[0029] First accommodation hole 111

[0030] Positioning hole 112

[0031] Material carrier 12

[0032] Material pressing mechanism 13

[0033] First material pressing component 131

[0034] First fixing block 1311

[0035] First through hole 1311a

[0036] Blind hole 1311b

[0037] First material pressing piece 1312

[0038] First linkage rod 1313

[0039] First elastic member 1314

[0040] Second material pressing component 132

[0041] Second fixing block 1321

[0042] Second through hole 1321a

[0043] Second material pressing piece 1322

[0044] Second linkage rod 1323

[0045] Second elastic member 1324

[0046] Positioning unit 20

[0047] Support plate 21

[0048] Second accommodation hole 211

[0049] Moving hole 212

[0050] Clamping driving part 22

[0051] The first positioning mechanism 23

[0052] The first positioning component 231

[0053] The first positioning driving part 2311

[0054] The positioning column 2312

[0055] The second positioning component 232

[0056] The second positioning driving part 2321

[0057] The expansion pin 2322

[0058] The sleeve 2322a

[0059] The pin shaft 2322b

[0060] The third positioning component 233

[0061] The third positioning driving part 2331

[0062] The pushing part 2332

[0063] The second positioning mechanism 24

[0064] The limiting component 241

[0065] The limiting part 2411

[0066] The limiting driving part 2412

[0067] The first fixed seat 2413

[0068] The connecting part 2413a

[0069] The stopping part 2413b

[0070] The sliding block 2414

[0071] The third elastic part 2415

[0072] The stopping column 2416

[0073] The pushing component 242

[0074] The pushing part 2421

[0075] The pushing driving part 2422

[0076] The second fixed seat 2423

[0077] The sliding hole 2423a

[0078] The sealing plate 2424

[0079] Fourth elastic member 2425

[0080] Lifting unit 30

[0081] Base plate 31

[0082] Lifting assembly 32

[0083] Lifting driving member 321

[0084] Lifting member 322

[0085] Workpiece 200 Detailed implementation manners

[0086] The following details the implementation manners of the present application. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0087] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, in the description of the present application, it should be noted that the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0088] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances. Some embodiments of the present application will be described in detail below with reference to the drawings.

[0089] The following further illustrates the embodiments of the present application with reference to the drawings.

[0090] Please refer to Figure 1 , an embodiment of the present application provides a positioning device 100 for positioning a workpiece 200. The workpiece 200 can be a middle frame of an electronic watch, a housing of a headphone case, etc. The positioning device 100 includes a clamping jig 10 and a positioning unit 20.

[0091] Specifically, please refer toFigure 1 and Figure 2 The clamping fixture 10 includes a carrier plate 11, a plurality of workpiece carriers 12 and a plurality of pressing mechanisms 13.

[0092] The carrier plate 11 is provided with a first accommodation hole 111 and a positioning hole 112 spaced apart from the first accommodation hole 111. The carrier plate 11 may be a plate-like structure. The structure of the first accommodation hole 111 may be circular, rounded rectangular or irregular, and the specific structure only needs to be adapted to the structure of the workpiece 200. The positioning hole 112 may be a circular hole, a square hole, etc.

[0093] The plurality of workpiece carriers 12 are all connected to the carrier plate 11 and arranged around the first accommodation hole 111. The plurality of workpiece carriers 12 are used to carry the workpiece 200. The number of the workpiece carriers 12 may be three, four, five, etc., as long as the workpiece 200 can be stably supported. It can be understood that a profiling structure may be provided on the side of the workpiece carrier 12 for carrying the workpiece 200 to improve the fit with the workpiece 200 and thus improve the stability of supporting the workpiece 200.

[0094] The plurality of pressing mechanisms 13 are all connected to the carrier plate 11 and arranged corresponding to the first accommodation hole 111. The plurality of pressing mechanisms 13 are used to press the workpiece 200. The number of the pressing mechanisms 13 may be two, three, etc., as long as the workpiece 200 can be stably pressed. In order to improve the stability of the pressing mechanism 13 pressing the workpiece 200, the pressing mechanisms 13 may be arranged symmetrically.

[0095] Please also refer to Figure 3 The positioning unit 20 includes a support plate 21, a plurality of clamping driving members 22, a first positioning mechanism 23 and a second positioning mechanism 24.

[0096] The support plate 21 is provided with a second accommodation hole 211. The support plate 21 is used to support the carrier plate 11. The support plate 21 is a plate-like structure, and a convex block for supporting the carrier plate 11 is provided on the support plate 21.

[0097] The plurality of clamping driving members 22 are all connected to one side of the support plate 21 for supporting the carrier plate 11. The clamping driving member 22 may be a cylinder, and its output end may be a rod-like structure. The number of the clamping driving members 22 may be two, three, etc., which is the same as the number of the pressing mechanisms 13. And when the clamping fixture 10 is placed on the support plate 21, the positions of the plurality of clamping driving members 22 correspond to the positions of the plurality of pressing mechanisms 13 one by one.

[0098] The first positioning mechanism 23 is connected to the support plate 21 and is used to cooperate with the positioning hole 112 to position the carrier plate 11. It can be understood that when the clamping fixture 10 is placed on the support plate 21, the first positioning mechanism 23 can be inserted into the positioning hole 112 to position the carrier plate 11.

[0099] The second positioning mechanism 24 includes a limiting component 241 and a pushing component 242. The limiting component 241 includes a limiting member 2411 movably disposed in the second accommodation hole 211, and the pushing component 242 includes a pushing member 2421 movably disposed in the second accommodation hole 211 and oppositely disposed to the limiting member 2411.

[0100] Wherein, when the carrier plate 11 is placed on the support plate 21, the first accommodation hole 111 corresponds to the second accommodation hole 211. Both the limiting member 2411 and the pushing member 2421 extend into the first accommodation hole 111. A plurality of clamping driving members 22 respectively correspond to a plurality of pressing mechanisms 13 one by one. The clamping driving member 22 is used to drive the corresponding pressing mechanism 13 to open the clamp. The limiting member 2411 in the limiting component 241 is used to move to a preset position, and the pushing member 2421 in the pushing component 242 is used to elastically push the workpiece 200 to the limiting member 2411 to position the workpiece 200. The clamping driving member 22 releases the pressing mechanism 13 so that the pressing mechanism 13 presses the workpiece 200.

[0101] The positioning device 100 provided by the embodiment of the present application can carry the workpiece 200 through the loading member 12 of the clamping fixture 10, and can cooperate with the loading member 12 to clamp and position the workpiece 200 through the pressing mechanism 13. When positioning the workpiece 200, the clamping fixture 10 is placed on the support plate 21 of the positioning unit 20. The first positioning mechanism 23 can position the carrier plate 11 of the clamping fixture 10 to improve the positioning accuracy of the loading member 12 on the carrier plate 11. The clamping driving member 22 can drive the pressing mechanism 13 to open the clamp to facilitate placing the workpiece 200 on the loading member 12. After the workpiece 200 is placed on the loading member 12, the limiting component 241 and the pushing component 242 in the second positioning mechanism 24 can cooperate to accurately position the workpiece 200. After the second positioning mechanism 24 accurately positions the workpiece 200, the clamping driving member 22 releases the pressing mechanism 13 so that the pressing mechanism 13 clamps the workpiece 200. The positioning device 100 provided by the embodiment of the present application can effectively improve the positioning accuracy of the clamping fixture 10 for the workpiece 200 through the cooperation of the positioning unit 20 and the clamping fixture 10, reduce manual operations, and reduce the risk of scratching and bumping the workpiece 200 during positioning.

[0102] In some embodiments, please refer to Figure 1 、 Figure 3 and Figure 4 The positioning device 100 further includes a jacking unit 30. The jacking unit 30 includes a bottom plate 31 and a jacking assembly 32.

[0103] The bottom plate 31 is connected to the side of the support plate 21 facing away from the clamping driving member 22 and is arranged at an interval from the support plate 21. The bottom plate 31 is in a plate-like structure to improve the support stability. It can be understood that a plurality of columnar structures can be arranged between the bottom plate 31 and the support plate 21 to connect the bottom plate 31 and the support plate 21 and keep the bottom plate 31 and the support plate 21 spaced apart, reserving an activity space for the jacking assembly 32.

[0104] The jacking assembly 32 includes a jacking driving member 321 connected to the side of the bottom plate 31 facing the support plate 21 and a plurality of jacking members 322 connected to the jacking driving member 321. The jacking driving member 321 can be a cylinder or the like. The jacking members 322 can be columnar structures. The number of the jacking members 322 can be four, five, six, etc., as long as the carrier plate 11 can be stably pushed. The positions of the jacking members 322 can be freely set as long as they avoid other structures. The number and positions of the jacking members 322 are not limited herein. To improve the stability of the jacking driving member 321 driving the jacking members 322 to move, a plate-like structure can be arranged at the output end of the jacking driving member 321, and a plurality of jacking members 322 are all connected to the plate-like structure.

[0105] The support plate 21 is also provided with a plurality of moving holes 212 corresponding to the plurality of jacking members 322 one by one. The plurality of moving holes 212 are all opposite to the carrier plate 11 placed on the support plate 21. The moving holes 212 can be provided with four, five, six, etc. The number and positions of the moving holes 212 are consistent with the number and positions of the jacking members 322, and the jacking members 322 can slide along the extending direction of the moving holes 212.

[0106] Wherein, one end of the jacking member 322 away from the jacking driving member 321 is movably arranged in the corresponding moving hole 212, and the jacking driving member 321 is used to drive the jacking member 322 to move towards the support plate 21 to jack up the carrier plate 11 located on the support plate 21.

[0107] In some embodiments, please refer to Figure 1 、 Figure 2 and Figure 5 , the material pressing mechanism 13 includes a first material pressing assembly 131. The first material pressing assembly 131 includes a first fixing block 1311, a first material pressing member 1312, a first linkage rod 1313 and a first elastic member 1314.

[0108] The first fixing block 1311 is fixedly connected to the side of the carrier plate 11 facing away from the support plate 21. The first fixing block 1311 is provided with a first through hole 1311a and a blind hole 1311b. One end of the first through hole 1311a faces the corresponding clamping driving member 22, and the other end is close to the first accommodating hole 111. The extending direction of the blind hole 1311b is parallel to the extending direction of the first through hole 1311a. The blind hole 1311b is spaced from the first through hole 1311a in the direction away from the carrier plate 11, and the orifice of the blind hole 1311b faces the first accommodating hole 111.

[0109] The first pressing member 1312 is rotatably connected to one end of the first fixing block 1311 close to the first accommodating hole 111, and one end of the first pressing member 1312 is opposite to the first through hole 1311a, and the other end is opposite to the blind hole 1311b. The first pressing member 1312 can be a special-shaped structure, and the included angle between the extending directions of the two ends of the first pressing member 1312 is an obtuse angle. The first pressing member 1312 can be rotatably connected to the first fixing block 1311 through a rotating shaft or the like. The end opposite to the first through hole 1311a covers the first through hole 1311a, and the end opposite to the blind hole 1311b extends toward the first accommodating hole 111 for pressing the workpiece 200.

[0110] The first linkage rod 1313 is movably arranged in the blind hole 1311b and is rotatably connected to the first pressing member 1312. The first linkage rod 1313 can be rotatably connected to the end of the first pressing member 1312 opposite to the blind hole 1311b through a connecting member such as a rotating shaft. When the first movable rod slides along the blind hole 1311b, it can drive the first pressing member 1312 to rotate relative to the first fixing block 1311.

[0111] The first elastic member 1314 is arranged in the blind hole 1311b and abuts against the first linkage rod 1313. The first elastic member 1314 is used to push the first linkage rod 1313 to move away from the blind hole 1311b, so that the first linkage rod 1313 drives the first pressing member 1312 to move to press the workpiece 200. The first elastic member 1314 can be a spring or the like to elastically push the first linkage rod 1313 to move away from the blind hole 1311b.

[0112] It can be understood that when the first pressing component 131 needs to be opened, the output end of the opening driving member 22 corresponding to the first fixed block 1311 is inserted into the first through hole 1311a, and pushes the end of the first pressing member 1312 opposite to the first through hole 1311a to move away from the first through hole 1311a, thereby causing the first pressing member 1312 to rotate, and the end of the first pressing member 1312 opposite to the blind hole 1311b rotates away from the first accommodating hole 111, and drives the first connecting rod 1313 to move into the blind hole 1311b, and the first connecting rod 1313 compresses the first elastic member 1314. When the first pressing component 131 is needed to press the workpiece 200, the output end of the clamping drive 22 moves out of the first through hole 1311a, and the first elastic member 1314 pushes the first connecting rod 1313 to move away from the blind hole 1311b. The first connecting rod 1313 drives the first pressing member 1312 to rotate, so that the end of the first pressing member 1312 opposite to the blind hole 1311b moves toward the first accommodating hole 111, thereby pressing the workpiece 200.

[0113] In some embodiments, see Figure 1 , Figure 2 and Figure 6 The pressing mechanism 13 further includes a second pressing assembly 132 , and the second pressing assembly 132 includes a second fixing block 1321 , a second pressing member 1322 , a second connecting rod 1323 and a second elastic member 1324 .

[0114] The second fixing block 1321 is fixedly connected to the side of the carrier plate 11 away from the support plate 21, and the second fixing block 1321 is provided with a second through hole 1321a, one end of the second through hole 1321a is arranged toward the corresponding clamping drive member 22, and the other end is arranged close to the first accommodating hole 111, the second through hole 1321a is a step hole, and the radius of the end of the second through hole 1321a facing the clamping drive member 22 is larger than the radius of the end of the second through hole 1321a close to the first accommodating hole 111.

[0115] The second pressing piece 1322 is rotatably connected to one end of the second fixing block 1321 close to the first receiving hole 111, and one end of the second pressing piece 1322 is opposite to the second through hole 1321a. The second pressing piece 1322 can be a special-shaped structure, and the angle between the extension directions of the two ends of the second pressing piece 1322 is an obtuse angle. The second pressing piece 1322 can be rotatably connected to the second fixing block 1321 through a connecting piece such as a rotating shaft, one end of the second pressing piece 1322 is opposite to the second through hole 1321a, and the other end extends toward the first receiving hole 111, for pressing and holding the workpiece 200.

[0116] The second linkage rod 1323 is movably arranged in the second through hole 1321a and is rotatably connected to the second pressure member 1322. The second linkage rod 1323 can be rotatably connected to one end of the second pressure member 1322 and the second through hole 1321a opposite thereto through a rotating shaft or the like. A sheet-shaped stopper can be provided at one end of the second linkage rod 1323 away from the second pressure member 1322.

[0117] The second elastic member 1324 is arranged in the second through hole 1321a and sleeved on the second linkage rod 1323. One end of the second elastic member 1324 abuts against the stepped surface in the second through hole 1321a, and the other end abuts against one end of the second linkage rod 1323 away from the second pressure member 1322. The second elastic member 1324 is used to push the second linkage rod 1323 to move away from the second pressure member 1322, so that the second linkage rod 1323 drives the second pressure member 1322 to move to press the workpiece 200. The second elastic member 1324 can be a spring or the like. The second elastic member 1324 is arranged at one end of the second through hole 1321a facing the clamp-opening driving member 22, and its two ends respectively abut against the stepped surface in the second through hole 1321a and the sheet-shaped stopper on the second linkage rod 1323 to push the second linkage rod 1323 to move.

[0118] It can be understood that when the second pressure component 132 needs to open the clamp, the output end of the clamp-opening driving member 22 corresponding to the second fixed block 1321 pushes the second linkage rod 1323 to move towards the first accommodation hole 111. The second linkage rod 1323 compresses the second elastic member 1324 and drives the second pressure member 1322 to rotate, so that one end of the second pressure member 1322 extending towards the first accommodation hole 111 rotates away from the first accommodation hole 111. When the second pressure component 132 needs to press the workpiece 200, the output end of the clamp-opening driving member 22 moves out of the second through hole 1321a. The second elastic member 1324 pushes the second linkage rod 1323 to move away from the first accommodation hole 111. The second linkage rod 1323 pulls the second pressure member 1322 to rotate, so that the second pressure member 1322 presses the workpiece 200.

[0119] It can be understood that only a plurality of first pressure components 131, or only a plurality of second pressure components 132, or a mixture of first pressure components 131 and second pressure components 132 can be provided on the carrier plate 11. The specific setting situation is set according to actual needs and is not limited here.

[0120] Specifically, the first pressure member 1312 of the first pressure component 131 is not opposite to the loading member 12, and the second pressure member 1322 of the second pressure component 132 is opposite to one of the loading members 12. When positioning the workpiece 200, the first pressure member 1312 is used to abut against the workpiece 200 to limit the workpiece 200, and the second pressure member 1322 cooperates with the corresponding loading member 12 to clamp the workpiece 200 to fix the workpiece 200.

[0121] In some embodiments, please refer to Figure 1 and Figure 2 , there are two positioning holes 112, and the two positioning holes 112 are arranged at intervals. The first positioning mechanism 23 includes a first positioning component 231, and the first positioning component 231 includes a first positioning driving member 2311 and a positioning post 2312. Please refer to Figure 3 and Figure 7 together. The first positioning driving member 2311 is connected to the side of the support plate 21 away from the clamping driving member 22, and the first positioning driving member 2311 can be a cylinder or the like. The positioning post 2312 is connected to the first positioning driving member 2311 and is movably inserted into the support plate 21. The positioning post 2312 is correspondingly arranged with one of the positioning holes 112. The positioning post 2312 is a cylindrical structure. It can be understood that an arc surface structure can be provided at the end of the positioning post 2312 away from the first positioning driving member 2311 to facilitate the insertion of the positioning post 2312 into the positioning hole 112. The first positioning driving member 2311 is used to drive the positioning post 2312 to move towards the carrier plate 11 so that the positioning post 2312 is inserted into the positioning hole 112 corresponding to the positioning post 2312, thereby positioning the carrier plate 11.

[0122] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 7 , the first positioning mechanism 23 further includes a second positioning component 232, and the second positioning component 232 includes a second positioning driving member 2321 and an expansion pin 2322. The second positioning driving member 2321 is connected to the side of the support plate 21 away from the clamping driving member 22, and the second positioning driving member 2321 can be a cylinder or the like. The expansion pin 2322 includes a sleeve 2322a and a pin shaft 2322b. The sleeve 2322a is fixedly connected to the side of the support plate 21 for carrying the carrier plate 11 and is correspondingly arranged with the other positioning hole 112. The pin shaft 2322b is connected to the second positioning driving member 2321 and movably passes through the support plate 21. The end of the pin shaft 2322b away from the second positioning driving member 2321 is movably arranged in the sleeve 2322a. Wherein, the sleeve 2322a is used to be inserted into the corresponding positioning hole 112 to position the carrier plate 11, and the second positioning driving member 2321 is used to drive the pin shaft 2322b to move so that the sleeve 2322a expands, and then the sleeve 2322a abuts against the inner wall of the positioning hole 112 to fix the carrier plate 11.

[0123] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 7The first positioning mechanism 23 also includes a third positioning assembly 233, and the third positioning assembly 233 includes a third positioning driver 2331 and a pushing member 2332. The third positioning driver 2331 is connected to the side of the support plate 21 away from the clamping driver 22, and is spaced apart from the first positioning driver 2311 in a direction away from the second accommodating hole 211. The third positioning driver 2331 can be a cylinder or the like. The pushing member 2332 is connected to the third positioning driver 2331 and movably inserted in the support plate 21. The pushing member 2332 can be a strip-shaped or plate-shaped structure. The third positioning driver 2331 is used to drive the pushing member 2332 to move toward the carrier 11, so that the pushing member 2332 is held against the carrier 11, thereby positioning the carrier 11.

[0124] The positioning process of the first positioning mechanism 23 provided in the embodiment of the present application on the carrier 11 is roughly as follows:

[0125] First, when the carrier 11 is placed on the support plate 21, the two positioning holes 112 correspond to the positioning column 2312 and the expansion pin 2322 respectively, wherein the positioning hole 112 corresponding to the expansion pin 2322 is clamped on the expansion pin 2322. Then the first positioning driver 2311 drives the positioning column 2312 to be inserted into the positioning hole 112 corresponding to the positioning column 2312 to position the carrier 11. Again, the second positioning driver 2321 drives the expansion pin 2322 to expand so that the expansion pin 2322 clamps the hole wall of the positioning hole 112 corresponding to the expansion pin 2322 to further position the carrier 11. Finally, the third positioning driver 2331 drives the pushing member 2332 to press against the side wall of the carrier 11 to cooperate with the positioning column 2312 to clamp the carrier 11, thereby increasing the stability of positioning. In this way, the positioning accuracy of the carrier plate 11 and the stability of the carrier plate 11 after positioning can be effectively improved, thereby improving the stability of the subsequent positioning of the workpiece 200 on the carrier plate 11.

[0126] In some embodiments, see Figure 1 , Figure 3 , Figure 8 and Figure 9The limiting assembly 241 further includes a limiting driving member 2412, a first fixed seat 2413, a sliding block 2414 and a third elastic member 2415. The limiting driving member 2412 is connected to the support plate 21, and the limiting driving member 2412 can be a cylinder or the like. The first fixed seat 2413 is connected to the support plate 21 for supporting one side of the carrier plate 11, and the first fixed seat 2413 includes a connecting portion 2413a and a stopper 2413b, the connecting portion 2413a is connected to the support plate 21, and the stopper 2413b is arranged on the side of the connecting portion 2413a facing the second accommodating hole 211. The first fixed seat 2413 is roughly L-shaped, the connecting portion 2413a is roughly plate-shaped, and the stopper 2413b is roughly plate-shaped. The sliding block 2414 is connected to the limit driving member 2412, and is slidably connected to the connecting portion 2413a, and is arranged opposite to the side of the stopper 2413b away from the second receiving hole 211. The sliding block 2414 is a block structure, and the sliding block 2414 and the stopper 2413b can be slidably connected through a dovetail groove structure to improve the stability of the connection between the sliding block 2414 and the connecting portion 2413a. The two ends of the third elastic member 2415 are respectively abutted against the sliding block 2414 and the stopper 2413b, and the third elastic member 2415 is used to push the sliding block 2414 away from the stopper 2413b, and the third elastic member 2415 can be a spring. It can be understood that a blind groove for accommodating the third elastic member 2415 can be provided in the sliding block 2414.

[0127] The position-limiting member 2411 is connected to the side of the sliding block 2414 away from the connecting portion 2413a, and the position-limiting driving member 2412 is used to drive the sliding block 2414 to move toward the stop portion 2413b, thereby driving the position-limiting member 2411 to move toward the stop portion 2413b, and when the sliding block 2414 abuts against the stop portion 2413b, the position-limiting member 2411 is located at a preset position. It can be understood that when the workpiece 200 needs to be released, the output end of the position-limiting driving member 2412 is away from the sliding block 2414, and the sliding block 2414 is away from the stop portion 2413b under the push of the third elastic member 2415, thereby driving the position-limiting member 2411 away from the workpiece 200.

[0128] In some embodiments, see Figure 8 and Figure 9, the limiting component 241 further includes a stop post 2416. The stop post 2416 is connected to the support plate 21 and is spaced from the first fixing seat 2413 along the direction in which the first fixing seat 2413 is away from the first receiving hole 111. The stop post 2416 is configured to stop the sliding block 2414 when the third elastic member 2415 pushes the sliding block 2414 away from the stop portion 2413b. In this way, the distance that the sliding block 2414 is away from the stop portion 2413b can be limited by the stop member, and further the distance that the limiting member 2411 is away from the second receiving hole 211 can be limited, so that when the carrier plate 11 is placed on the support plate 21, the limiting member 2411 can extend into the first receiving hole 111.

[0129] In some embodiments, please refer to Figure 1 , Figure 3 , Figure 8 and Figure 10 , the pushing component 242 further includes a pushing driving member 2422, a second fixing seat 2423, a sealing plate 2424 and a fourth elastic member 2425.

[0130] The pushing driving member 2422 is connected to the support plate 21, and the pushing driving member 2422 can be a cylinder or the like.

[0131] The second fixing seat 2423 is connected to the support plate 21 to support one side of the carrier plate 11. The second fixing seat 2423 is provided with a sliding hole 2423a. One end of the sliding hole 2423a faces the second receiving hole 211. The pushing member 2421 is movably inserted into the sliding hole 2423a. The second fixing seat 2423 can be a block structure. In this embodiment, the sliding hole 2423a can be a stepped hole, and the cross-sectional area of one end of the sliding hole 2423a close to the second receiving hole 211 is smaller than the cross-sectional area of the other end of the sliding hole 2423a away from the second receiving hole 211.

[0132] The sealing plate 2424 is connected to the side of the second fixing seat 2423 away from the second receiving hole 211 and covers one end of the sliding hole 2423a facing away from the second receiving hole 211. The sealing plate 2424 can be a plate-like structure for sealing one end of the sliding hole 2423a away from the second receiving hole 211.

[0133] The fourth elastic member 2425 is disposed in the sliding hole 2423a. The two ends of the fourth elastic member 2425 respectively abut against the pushing member 2421 and the sealing plate 2424. The fourth elastic member 2425 is used to push the pushing member 2421 away from the sealing plate 2424, and the fourth elastic member 2425 can be a spring. In this embodiment, the pushing member 2421 has a special-shaped structure, which is generally L-shaped. A protrusion is provided at the end extending into the sliding hole 2423a. The protrusion contacts the fourth elastic member 2425. When the fourth elastic member 2425 pushes the pushing member 2421 to move away from the sealing plate 2424, the protrusion on the pushing member 2421 can abut against the step surface of the sliding hole 2423a to prevent the pushing member 2421 from moving out of the moving hole 212.

[0134] Among them, when pushing the workpiece 200, the output end of the pushing driving member 2422 is far from the pushing member 2421, and the fourth elastic member 2425 drives the pushing member 2421 to push the workpiece 200 to the limiting member 2411. When releasing the workpiece 200, the output end of the pushing driving member 2422 abuts against the pushing member 2421 and moves along the sliding hole 2423a towards the sealing plate 2424, so that the pushing member 2421 moves away from the workpiece 200. In this way, the fourth elastic member 2425 drives the pushing member 2421 to push the workpiece 200 to the limiting member 2411. The fourth elastic member 2425 has elasticity, which can prevent the pushing member 2421 from rigidly contacting the workpiece 200. Furthermore, when positioning the workpiece 200, scratches, bruises, etc. on the surface of the workpiece 200 can be reduced.

[0135] It can be understood that in order to improve the positioning accuracy of the second positioning mechanism 24 for the workpiece 200, both the limiting component 241 and the pushing component 242 in the second positioning mechanism 24 are provided with two groups. Each group of limiting components 241 is disposed opposite to a group of pushing components 242. When positioning the positioning component, the pushing component 242 pushes the workpiece 200 to the corresponding limiting component 241 to position the four sides of the workpiece 200.

[0136] The working process of the positioning device 100 provided by the embodiment of the present application is generally as follows:

[0137] First, place the clamping fixture 10 on the support plate 21 of the positioning unit 20, and align the two positioning holes 112 on the carrier plate 11 with the positioning posts 2312 and the expansion pins 2322 respectively. The positioning hole 112 corresponding to the expansion pin 2322 is snap-fitted onto the expansion pin 2322. Then, the first positioning driving member 2311 drives the positioning post 2312 to insert into the corresponding positioning hole 112 of the positioning post 2312 to position the carrier plate 11. Again, the second positioning driving member 2321 drives the expansion pin 2322 to expand, so that the expansion pin 2322 clamps the hole wall of the positioning hole 112 corresponding to the expansion pin 2322, further positioning the carrier plate 11. Finally, the third positioning driving member 2331 drives the pressing member 2332 to abut against the side wall of the carrier plate 11 to cooperate with the positioning post 2312 to clamp the carrier plate 11 and increase the stability of positioning. At this time, both the limiting member 2411 and the pushing member 2421 extend into the first accommodation hole 111 of the carrier plate 11.

[0138] After the positioning of the carrier plate 11 is completed, the clamping driving member 22 moves, pushing the first pressing member 1312 in the first pressing component 131 to rotate away from the first accommodation hole 111, and pushing the second pressing member 1322 in the second pressing component 132 to rotate away from the first accommodation hole 111, so that the pressing mechanism 13 opens the clamp, and then the workpiece 200 is placed on the loading member 12 of the clamping fixture 10.

[0139] After the workpiece 200 is placed, the limiting driving member 2412 drives the sliding block 2414 to move towards the stop portion 2413b, and then drives the limiting member 2411 to move towards the stop portion 2413b. When the sliding block 2414 abuts against the stop portion 2413b, the limiting member 2411 is located at the preset position, and at this time the limiting member 2411 abuts against the workpiece 200. Then, the output end of the pushing driving member 2422 moves away from the pushing member 2421, and the fourth elastic member 2425 drives the pushing member 2421 to push the workpiece 200 to the limiting member 2411 to accurately position the workpiece 200 on the loading member 12.

[0140] After the positioning is completed, the clamping driving member 22 releases the corresponding first pressing component 131 and second pressing component 132, so that the first pressing member 1312 and the second pressing member 1322 rotate to press the workpiece 200 to fix the workpiece 200 on the clamping fixture 10.

[0141] After the workpiece 200 is fixed, the output end of the limiting driving member 2412 moves away from the sliding block 2414, and the sliding block 2414 moves away from the stop portion 2413b under the pushing action of the third elastic member 2415, and then drives the limiting member 2411 to move away from the workpiece 200. The output end of the pushing driving member 2422 abuts against the pushing member 2421 and moves along the sliding hole 2423a towards the sealing plate 2424, so that the pushing member 2421 moves away from the workpiece 200.

[0142] Then, the first positioning component 231, the second positioning component 232, and the third positioning component 233 in the first positioning mechanism 23 all release the carrier plate 11. Finally, the lifting drive member 321 drives the lifting member 322 to push against the carrier plate 11, so that the carrier plate 11 is separated from the expansion pin 2322, facilitating the removal of the material clamping fixture 10. The material clamping fixture 10 drives the workpiece 200 with positioning completed and can be placed on other processing mechanisms to perform precise processing on the workpiece 200.

[0143] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present application, the present application can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed in the present application.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A positioning device, characterized in that: include: Clamping fixtures, including: The carrier plate is provided with a first accommodating hole and a positioning hole spaced apart from the first accommodating hole. a plurality of material carriers, each connected to the carrier plate and arranged around the first receiving hole, the plurality of material carriers being used to carry workpieces, and A plurality of material pressing mechanisms, all connected to the carrier plate and arranged corresponding to the first receiving holes, the plurality of material pressing mechanisms being used to press and hold the workpiece; and Positioning unit, comprising: A support plate is provided with a second accommodating hole, and the support plate is used to support the carrier plate. A plurality of clamping driving members are connected to one side of the support plate for supporting the carrier plate. a first positioning mechanism connected to the support plate and used to cooperate with the positioning hole to position the carrier plate, and The second positioning mechanism includes a limiting assembly and a resisting assembly both connected to the support plate, the limiting assembly includes a limiting member movably disposed in the second receiving hole, and the resisting assembly includes a resisting member movably disposed in the second receiving hole and disposed opposite to the limiting member; wherein, When the carrier plate is placed on the support plate, the first accommodating hole and the second accommodating hole correspond to each other, the limiting member and the pushing member both extend into the first accommodating hole, the multiple clamping driving members correspond one by one to the multiple pressing mechanisms respectively, the clamping driving member is used to drive the corresponding pressing mechanism to clamp, the limiting member in the limiting assembly is used to move to a preset position, the pushing member in the pushing assembly is used to elastically push the workpiece to the limiting member to position the workpiece, and the clamping driving member releases the pressing mechanism so that the pressing mechanism presses the workpiece.

2. The positioning device according to claim 1, characterized in that The positioning device further comprises a lifting unit, and the lifting unit comprises: A bottom plate connected to a side of the support plate facing away from the clamping drive member and spaced apart from the support plate; A lifting assembly, comprising a lifting driving member connected to a side of the bottom plate facing the support plate and a plurality of lifting members connected to the lifting driving member; The support plate is also provided with a plurality of movable holes corresponding to the plurality of lifting members, and the plurality of movable holes are all opposite to the carrier plate placed on the support plate; wherein, One end of the lifting member away from the lifting driving member is movably arranged in the corresponding movable hole, and the lifting driving member is used to drive the lifting member to move toward the support plate to lift the carrier plate located on the support plate.

3. The positioning device according to claim 1, characterized in that: The material pressing mechanism comprises a first material pressing component, and the first material pressing component comprises: a first fixing block, fixedly connected to a side of the carrier plate away from the support plate, the first fixing block being provided with a first through hole and a blind hole, one end of the first through hole being arranged toward the corresponding clamping drive member, and the other end being arranged close to the first receiving hole, the extension direction of the blind hole being parallel to the extension direction of the first through hole, the blind hole being arranged spaced apart from the first through hole in a direction away from the carrier plate, and the opening of the blind hole being arranged toward the first receiving hole; A first pressing piece is rotatably connected to one end of the first fixing block close to the first containing hole, and one end of the first pressing piece is opposite to the first through hole, and the other end is opposite to the blind hole; A first connecting rod, movably disposed in the blind hole and rotatably connected to the first pressing member; and The first elastic member is disposed in the blind hole and abuts against the first connecting rod. The first elastic member is used to push the first connecting rod to move away from the blind hole, so that the first connecting rod drives the first pressing member to move to abut against the workpiece.

4. The positioning device according to claim 3, characterized in that: The material pressing mechanism further includes a second material pressing component, and the second material pressing component includes: a second fixing block, fixedly connected to a side of the carrier plate away from the support plate, the second fixing block being provided with a second through hole, one end of the second through hole being arranged toward the corresponding clamping drive member, and the other end being arranged close to the first receiving hole, the second through hole being a stepped hole, and the radius of the end of the second through hole facing the clamping drive member being larger than the radius of the end of the second through hole close to the first receiving hole; A second pressing piece is rotatably connected to one end of the second fixing block close to the first accommodating hole, and one end of the second pressing piece is opposite to the second through hole; A second connecting rod, movably disposed in the second through hole and rotatably connected to the second pressing member; and A second elastic member is arranged in the second through hole and sleeved on the second connecting rod. One end of the second elastic member abuts against the step surface in the second through hole, and the other end abuts against one end of the second connecting rod away from the second pressing piece. The second elastic member is used to push the second connecting rod to move away from the second pressing piece, so that the second connecting rod drives the second pressing piece to move to press the workpiece.

5. The positioning device according to claim 1, characterized in that: There are two positioning holes, and the two positioning holes are spaced apart. The first positioning mechanism includes a first positioning assembly, and the first positioning assembly includes: A first positioning driving member connected to a side of the support plate facing away from the clamping driving member; and A positioning column is connected to the first positioning drive member and is movably inserted into the support plate, and the positioning column is arranged corresponding to one of the positioning holes; wherein, The first positioning driving member is used to drive the positioning post to move toward the carrier plate, so that the positioning post is inserted into the positioning hole corresponding to the positioning post, thereby positioning the carrier plate.

6. The positioning device according to claim 5, characterized in that: The first positioning mechanism further includes a second positioning assembly, wherein the second positioning assembly includes: A second positioning driving member connected to a side of the support plate facing away from the clamping driving member; and An expansion pin comprises a sleeve and a pin shaft, wherein the sleeve is fixedly connected to the support plate for supporting one side of the carrier plate and is arranged corresponding to the other positioning hole, the pin shaft is connected to the second positioning drive member and movably passes through the support plate, and the end of the pin shaft away from the second positioning drive member is movably arranged in the sleeve; wherein, The sleeve is used to be inserted into the corresponding positioning hole to position the carrier, and the second positioning drive member is used to drive the pin shaft to move to expand the sleeve, thereby making the sleeve abut against the inner wall of the positioning hole to fix the carrier.

7. The positioning device according to claim 6, characterized in that: The first positioning mechanism further includes a third positioning assembly, and the third positioning assembly includes: a third positioning driving member connected to a side of the support plate away from the clamping driving member and spaced apart from the first positioning driving member in a direction away from the second accommodating hole; and A pushing member is connected to the third positioning driving member and is movably inserted into the supporting plate; wherein, The third positioning driving member is used to drive the pushing member to move toward the carrier plate, so that the pushing member is pressed against the carrier plate, thereby positioning the carrier plate.

8. The positioning device according to claim 1, characterized in that: The limiting component also includes: A limit driving member connected to the support plate; a first fixing seat connected to one side of the support plate for supporting the carrier plate, the first fixing seat comprising a connecting portion and a stopping portion, the connecting portion being connected to the support plate, and the stopping portion being arranged on one side of the connecting portion facing the second receiving hole; a sliding block connected to the limit driving member, slidably connected to the connecting portion, and arranged opposite to a side of the stopping portion away from the second receiving hole; and A third elastic member, two ends of which are respectively abutted against the sliding block and the stopper, for pushing the sliding block away from the stopper; wherein, The limit member is connected to a side of the sliding block away from the connecting portion, and the limit driving member is used to drive the sliding block to move toward the stop portion, thereby driving the limit member to move toward the stop portion. When the sliding block abuts against the stop portion, the limit member is located at the preset position.

9. The positioning device according to claim 8, characterized in that: The limit assembly also includes a stop column, which is connected to the support plate and is spaced apart from the first fixing seat along a direction in which the first fixing seat is away from the first accommodating hole. The stop column is used to stop the sliding block when the third elastic member pushes the sliding block away from the stopping portion.

10. The positioning device according to claim 1, characterized in that: The push assembly also includes: A push driving member connected to the support plate; A second fixing seat is connected to the support plate and is used to support one side of the carrier plate. The second fixing seat is provided with a sliding hole, one end of the sliding hole is arranged toward the second accommodating hole, and the push member is movably inserted in the sliding hole; a sealing plate connected to a side of the second fixing seat away from the second receiving hole and covering an end of the sliding hole away from the second receiving hole; and A fourth elastic member is disposed in the sliding hole, and two ends of the fourth elastic member are respectively abutted against the push member and the sealing plate, and the fourth elastic member is used to push the push member away from the sealing plate; wherein, When the push assembly pushes the workpiece, the output end of the push driving member moves away from the push member, and the fourth elastic member drives the push member to push the workpiece to the limiting member. When the push assembly releases the workpiece, the output end of the push driving member pushes the push member to move along the sliding hole toward the sealing plate to move the push member away from the workpiece.

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