A positioning device

Abstract

This utility model discloses a positioning device, comprising: a base plate; a carrier plate for placing a product to be positioned; a positioning element, including a first positioning part and a second positioning part, wherein the first positioning part is used to fix the product in a first direction, and the second positioning part is used to fix the product in a second direction; and a driving element, including a driving part and a transmission part, wherein the driving part is used to drive the transmission part to move along a preset path, and the transmission part is connected to the first positioning part and the second positioning part respectively; when the transmission part moves along the preset path, it can simultaneously drive the first positioning part and the second positioning part to move in the first direction and the second direction respectively. The positioning device of this utility model drives the transmission part to move along the preset path through the driving part, thereby causing the first positioning part and the second positioning part to move simultaneously in the first direction and the second direction respectively, to achieve the fixing or release of the product. It has a simple structure, a smooth positioning process, effectively avoids collisions or squeezing of the product, and effectively improves the production yield of the product.

Description

Technical Field

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

[0002] In the production process of mobile phone displays, it is necessary to fix the four sides of the display. This usually requires the cooperation of multiple driving and positioning components to fix the four sides of the display. The positioning device has a complex structure, is difficult to operate, and has low positioning efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a positioning device to solve the problems in the prior art, simplify the structure of the positioning device, and improve positioning efficiency.

[0004] This utility model provides a positioning device, including:

[0005] substrate;

[0006] A carrier plate, which is disposed on the substrate, is used to place the product to be positioned;

[0007] The positioning component includes a first positioning part and a second positioning part, wherein the first positioning part is used to fix the product in a first direction, and the second positioning part is used to fix the product in a second direction, wherein the first direction and the second direction are orthogonal.

[0008] A driving component, comprising a driving part and a transmission part, wherein the driving part is used to drive the transmission part to move along a preset path, and the transmission part is connected to the first positioning part and the second positioning part respectively. When the transmission part moves along the preset path, it can simultaneously drive the first positioning part and the second positioning part to move in the first direction and the second direction respectively, so as to fix or release the product.

[0009] In the positioning device described above, preferably, the transmission part includes a cam disk, the cam disk is provided with a plurality of grooves, the plurality of grooves are evenly distributed on the cam disk, the plurality of grooves are respectively provided with the first positioning part and the second positioning part, and both the first positioning part and the second positioning part are provided with a follower part;

[0010] When the cam disk moves along the preset path, the follower moves along the corresponding groove so that the first positioning part and the second positioning part simultaneously move closer to or further away from the center of the cam disk.

[0011] In the positioning device described above, preferably, the preset path is the rotation path of the cam disk with its axis as the center line, the groove is a waist-shaped groove, the waist-shaped groove includes a first end and a second end, and the first end of the waist-shaped groove is closer to the center of the cam disk than the second end of the waist-shaped groove.

[0012] In the positioning device described above, preferably, the driving unit includes a drive motor, a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The first synchronous pulley is connected to the output end of the drive motor, and the first synchronous pulley and the second synchronous pulley are connected via the synchronous belt. The transmission unit is connected to the second synchronous pulley. The drive motor drives the first synchronous pulley to rotate, and the synchronous belt drives the second synchronous pulley to rotate, so that the cam disc moves along the preset path.

[0013] In the positioning device described above, preferably, the first positioning part includes two first positioning blocks, which are arranged opposite to each other along the first direction. Each first positioning block includes a first base plate and a first baffle perpendicularly connected to the first base plate. The follower part protrudes from the first base plate. The first baffle is used to position the product along the first direction. Both first positioning blocks are connected to a pair of grooves on the cam disk through the follower part at their bottom. When the transmission part moves along the preset path, the two first positioning blocks move towards each other along the first direction.

[0014] In the positioning device described above, preferably, the second positioning part includes two second positioning blocks, which are arranged opposite each other along the second direction. Each second positioning block includes a second base plate and a second baffle perpendicularly connected to the second base plate. The follower part protrudes from the second base plate. The second baffle is used to position the product along the second direction. Both second positioning blocks are connected to another pair of grooves on the cam disk through the follower part at their bottom. When the transmission part moves along the preset path, the two second positioning blocks move towards each other along the second direction.

[0015] In the positioning device described above, preferably, the substrate is provided with a guide portion, and both the first positioning portion and the second positioning portion are provided with guide mating portions, and a guide mating can be formed between the guide portion and the guide mating portion.

[0016] In the positioning device described above, preferably, both the first positioning part and the second positioning part are provided with positioning clamps, which are used to adjust the position of the product on the carrier plate.

[0017] In the positioning device described above, preferably, the carrier plate is provided with a detection unit, which is used to check whether the product to be positioned is located in a preset position. The detection unit includes a plurality of suction cups, which are used to adsorb the product.

[0018] In the positioning device described above, preferably, the positioning device further includes a limiting part disposed between the substrate and the first positioning part, the limiting part being used to limit the movable range of the first positioning part and the second positioning part in the first direction and the second direction, respectively.

[0019] Compared with the prior art, the positioning device of this utility model drives the transmission part to move along a preset path through the driving part, and drives the first positioning part and the second positioning part to move simultaneously along the first direction and the second direction respectively, so as to fix or release the product. It has a simple structure, is easy to operate, and the positioning process is stable, effectively avoiding collision or squeezing of the product and improving the production yield of the product. Attached Figure Description

[0020] Figure 1 This is a perspective view of the positioning device provided in an embodiment of the present invention.

[0021] Figure 2 This is a perspective view of the positioning device provided in an embodiment of the present invention from another angle;

[0022] Figure 3 This is an exploded view of the positioning device provided in an embodiment of this utility model;

[0023] Figure 4 This is a top view of the positioning device provided in an embodiment of this utility model;

[0024] Figure 5 This is a perspective view of the transmission unit provided in an embodiment of the present invention;

[0025] Figure 6 This is a top view of the transmission unit provided in an embodiment of this utility model;

[0026] Figure 7 This is a perspective view of the positioning component provided in an embodiment of the present invention.

[0027] Figure 8 This is a perspective view of the positioning component provided in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-product;

[0030] 10-Substrate, 11-Bearing, 12-Rotating shaft, 13-Guide section, 14-Vacuum connector;

[0031] 20-Carrier plate;

[0032] 30-Positioning component, 31-First positioning part, 311-First positioning block, 3111-First base plate, 3112-First baffle, 32-Second positioning part, 321-Second positioning block, 3211-Second base plate, 3212-Second baffle, 33-Following part, 34-Guide mating part, 35-Positioning chuck;

[0033] 40-Drive component, 41-Drive unit, 411-Drive motor, 412-First synchronous pulley, 413-Second synchronous pulley, 414-Synchronous belt, 42-Transmission unit, 421-Cam disc, 422-Groove;

[0034] 50 - Detection section; 51 - Suction cup;

[0035] 60 - Limiting part; 61 - Adjusting bolt;

[0036] D1 - First direction, D2 - Second direction. Detailed Implementation

[0037] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] Reference Figures 1 to 4 As shown, this utility model provides a positioning device, including a base plate 10, a carrier plate 20, a positioning member 30, and a driving member 40, wherein:

[0039] The carrier plate 20 is disposed on the substrate 10. The carrier plate 20 is used to place the product 100 to be positioned. Multiple carrier plates 20 can be disposed on the substrate 10 to support multiple products 100, thereby positioning multiple products 100 at the same time. The number of carrier plates 20 can be set according to actual operation requirements and is not limited here.

[0040] The positioning component 30 includes a first positioning part 31 and a second positioning part 32. The first positioning part 31 can position the product 100 in a first direction D1 to restrict the movement of the product 100 in the first direction D1; the second positioning part 32 can position the product 100 in a second direction D2 to restrict the movement of the product 100 in the second direction D2; the first direction D1 and the second direction D2 are orthogonal. By positioning the product 100 in two mutually orthogonal directions, the spatial position of the product 100 can be controlled more precisely, thereby improving positioning accuracy and stability.

[0041] The driving component 40 includes a driving part 41 and a transmission part 42. The driving part 41 is used to drive the transmission part 42 to move along a preset path. The transmission part 42 is connected to the first positioning part 31 and the second positioning part 32 respectively. The driving part 41 can provide power for the movement of the first positioning part 31 and the second positioning part 32. The transmission part 42 is used to transmit the power provided by the driving part 41 to the first positioning part 31 and the second positioning part 32.

[0042] When the transmission unit 42 moves along the preset path, it can simultaneously drive the first positioning unit 31 and the second positioning unit 32 to move in the first direction D1 and the second direction D2 respectively, thereby fixing or releasing the product 100. When the transmission unit 42 is at the beginning of the preset path, the product 100 is not fixed. As the drive unit 41 drives the transmission unit 42 to move towards the end of the preset path, it can simultaneously drive the first positioning unit 31 and the second positioning unit 32 to move in the first direction D1 and the second direction D2 respectively. When the transmission unit 42 moves to the end of the preset path, the product 100 is fixed in the first direction D1 and the second direction D2. When the drive unit 41 drives the transmission unit 42 to move towards the beginning of the preset path, it simultaneously drives the first positioning unit 31 and the second positioning unit 32 to release the product 100, thereby releasing the fixation of the product 100.

[0043] The positioning device of this application can drive the first positioning part 31 and the second positioning part 32 to move simultaneously through only one driving part 41, thereby achieving fixation of the product 100 in two directions. It has a simple structure, compact spatial layout, and is easy to install and debug.

[0044] In the embodiments provided in this application, reference is made to Figure 5 as well as Figure 6 As shown, the transmission unit 42 includes a cam disk 421, on which a plurality of grooves 422 are provided. The grooves 422 are evenly distributed on the cam disk 421, and the grooves 422 are respectively corresponding to the first positioning part 31 and the second positioning part 32. (Refer to...) Figure 7 as well as Figure 8 As shown, both the first positioning part 31 and the second positioning part 32 are provided with follower parts 33. The follower parts 33 are used to move along the corresponding groove 422 to drive the first positioning part 31 and the second positioning part 32 to move synchronously.

[0045] When the cam disk 421 moves along the preset path, the follower 33 can move in the corresponding groove 422 so that the first positioning part 31 and the second positioning part 32 simultaneously approach or move away from the center of the cam disk 421. When the first positioning part 31 and the second positioning part 32 simultaneously approach the center of the cam disk 421, that is, simultaneously approach the product 100, so as to achieve positioning of the product 100; when the first positioning part 31 and the second positioning part 32 simultaneously move away from the center of the cam disk 421, that is, simultaneously move away from the product 100, thereby releasing the product 100.

[0046] Furthermore, the preset path is the rotation path of the cam disk 421 with its axis as the center line, and the groove 422 is a waist-shaped groove, which includes a first end and a second end. The first end of the waist-shaped groove is closer to the center of the cam disk 421 than the second end of the waist-shaped groove.

[0047] Cam disk 421 is connected to drive unit 41. Drive unit 41 drives cam disk 421 to rotate. When cam disk 421 rotates, follower 33 moves from the second end of waist-shaped groove to the first end of waist-shaped groove, thereby causing the first positioning part 31 and the second positioning part 32 to move closer to product 100 at the same time to fix product 100.

[0048] Preferably, the follower 33 is a follower provided at the bottom of the first positioning part 31 and the second positioning part 32. The shape of the follower is adapted to the shape of the waist-shaped groove. When the cam disk 421 rotates, the follower moves along the waist-shaped groove to get closer to or away from the center of the cam disk 421.

[0049] By cooperating with the cam disk 421 and the follower, the linkage between the first positioning part 31 and the second positioning part 32 can be realized. That is, only one driving part 41 is needed to drive the cam disk 421 to rotate, so that the first positioning part 31 and the second positioning part 32 can move simultaneously, thereby improving the positioning efficiency of the product 100.

[0050] In one feasible implementation, refer to Figure 2 as well as Figure 3 As shown, the drive unit 41 includes a drive motor 411, a first synchronous pulley 412, a second synchronous pulley 413, and a synchronous belt 414. The first synchronous pulley 412 is connected to the output end of the drive motor 411, and the first synchronous pulley 412 and the second synchronous pulley 413 are connected by the synchronous belt 414. The transmission unit 42 is connected to the second synchronous pulley 413. After the drive motor 411 starts, it drives the first synchronous pulley 412 to rotate. Through the action of the synchronous belt 414, the second synchronous pulley 413 rotates synchronously, thereby driving the transmission unit 42 to move along a preset path.

[0051] Specifically, refer to Figure 1 as well as Figure 3As shown, a bearing 11 is provided on the substrate 10, and a rotating shaft 12 is provided inside the bearing 11. The rotating shaft 12 is connected to the cam disk 421 and the second synchronous wheel 413 in sequence, so that the cam disk 421 can rotate synchronously with the rotation of the second synchronous wheel 413, thereby driving the first positioning part 31 and the second positioning part 32 to move along the first direction D1 and the second direction D2 respectively.

[0052] The structure of the drive unit 41 has the advantages of smooth operation and parameterizable stroke adjustment, which can reduce the debugging time of the equipment. When the product 100 is a fragile product such as a mobile phone screen, the drive unit 41 can drive the first positioning unit 31 and the second positioning unit 32 to move smoothly, thereby reducing the impact of the first positioning unit 31 and the second positioning unit 32 on the product 100 during the positioning process, which is conducive to improving the product yield.

[0053] In the embodiments provided by this utility model, reference is made to Figure 2 , Figure 7 as well as Figure 8 As shown, the first positioning part 31 includes two first positioning blocks 311, which are arranged opposite to each other in the first direction D1. Each first positioning block 311 includes a first base plate 3111 and a first baffle 3112 that is perpendicularly connected to the first base plate 3111. Each first base plate 3111 has a follower part 33 protruding from it. The first baffle 3112 is used to position the product 100 along the first direction D1. Both first positioning blocks 311 are connected to a pair of grooves 422 on the transmission part 42 through the follower part 33 at their bottom. When the transmission part 42 moves along a preset path, the two first positioning blocks 311 move towards each other along the first direction D1. When the transmission unit 42 moves toward the end of the preset path, the two first positioning blocks 311 move closer to each other along the first direction D1 to fix the product 100 in the first direction D1. When the transmission unit 42 moves toward the beginning of the preset path, the two first positioning blocks 311 move further apart along the first direction D1, thereby releasing the product 100 in the first direction D1.

[0054] Similarly, continue to refer to Figure 2 , Figure 7 as well as Figure 8As shown, the second positioning part 32 includes two second positioning blocks 321, which are arranged opposite to each other in the second direction D2. Each second positioning block 321 includes a second base plate 3211 and a second baffle 3212 that is perpendicularly connected to the second base plate 3211. Each second base plate 3211 has a follower part 33 protruding from it. The second baffle 3212 is used to position the product 100 along the second direction D2. Both second positioning blocks 321 are connected to another pair of grooves 422 on the transmission part 42 through the follower part 33 at their bottom. When the transmission part 42 moves along the preset path, the two second positioning blocks 321 move towards each other in the second direction D2. When the transmission unit 42 moves toward the end of the preset path, the two second positioning blocks 321 move closer to each other along the second direction D2 to fix the product 100 in the second direction D2. When the transmission unit 42 moves toward the beginning of the preset path, the two second positioning blocks 321 move further apart from each other along the second direction D2, thereby releasing the product 100 in the second direction D2.

[0055] When the first positioning part 31 and the second positioning part 32 move along the first direction D1 and the second direction D2 respectively, in order to ensure the stability of the movement of the first positioning part 31 and the second positioning part 32, in the embodiments provided in this application, refer to Figure 3 as well as Figure 7 As shown, a guide portion 13 is provided on the substrate 10, and a guide engagement portion 34 is provided on both the first positioning portion 31 and the second positioning portion 32. A guide engagement can be formed between the guide portion 13 and the guide engagement portion 34.

[0056] Preferably, the guide portion 13 is a guide rail provided at the bottom of the substrate 10, and the guide mating portion 34 is a slider provided at the first positioning portion 31 and the second positioning portion 32. The guide rail that mates with the slider on the first positioning portion 31 extends along the first direction D1, and the guide rail that mates with the slider on the second positioning portion 32 extends along the second direction D2. When the transmission portion 42 moves along the preset path, the guide mating between the slider and the corresponding guide rail enables the first positioning portion 31 and the second positioning portion 32 to move stably along the first direction D1 and the second direction D2, respectively, thereby achieving accurate positioning of the product 100.

[0057] During the positioning process, product 100 may be placed in a position that does not meet the requirements of subsequent operations. Therefore, the position of product 100 needs to be adjusted during the positioning process. In the embodiments provided in this application, reference is made to... Figure 4As shown, both the first positioning part 31 and the second positioning part 32 are provided with positioning clamps 35, which are used to adjust the position of the product 100 on the carrier plate 20. During positioning, if the position of the product 100 is offset, as the first positioning part 31 and the second positioning part 32 move along the first direction D1 and the second direction D2 respectively, the positioning clamps 35 will contact the product 100 to push the product 100, so that the product 100 can move to the required position.

[0058] Specifically, each of the two first positioning blocks 311 and the two second positioning blocks 321 is provided with two positioning clamps 35. The two positioning clamps 35 on the first positioning block 311 are arranged at both ends of the first positioning block 311 along the second direction D2, and the two positioning clamps 35 on the second positioning block 321 are arranged at both ends of the second positioning block 321 along the first direction D1. If the product 100 is offset during the positioning process, the offset position will contact the corresponding positioning clamp 35, thereby moving the offset part to the accurate position.

[0059] After the product 100 is placed on the substrate 10, it may not be placed flat before the positioning operation, which could cause damage to the product 100 during the positioning process. To avoid damage to the product 100 due to uneven placement, the embodiments provided in this application refer to... Figure 1 as well as Figure 4 As shown, the carrier plate 20 is provided with a detection unit 50, which is used to check whether the product 100 to be positioned is in a preset position.

[0060] In one feasible implementation, refer to Figure 3 As shown, the detection unit 50 includes multiple suction cups 51, which are disposed on the substrate 10 at positions corresponding to the carrier plate 20. The substrate 10 is provided with a vacuum port 14, and the substrate 10 has an internal air passage (not shown). The air passage is connected to the vacuum port 14 and the suction cups 51. The vacuum port 14 is connected to a vacuum device. When the product 100 is placed on the carrier plate 20, the vacuum device is activated, causing the multiple suction cups 51 to adsorb the product 100. During the adsorption process, the vacuum value is observed. If the vacuum value is consistent with the preset value, it indicates that the product 100 is placed flat (the multiple suction cups 51 are adsorbed well with the product 100). If the observed vacuum value differs from the preset value, it indicates that the product 100 is not placed flat (at least one suction cup 51 has a gap or offset with the product 100).

[0061] During the movement of the first positioning part 31 and the second positioning part 32, in order to prevent the positioning clamp 35 from colliding with the product 100 and causing damage to the product 100 due to misoperation, the embodiments provided in this application refer to... Figures 1 to 4As shown, the positioning device also includes a limiting part 60, which is disposed between the substrate 10 and the first positioning part 31. The limiting part 60 is used to limit the range of movement of the first positioning part 31 and the second positioning part 32 in the first direction D1 and the second direction D2, respectively.

[0062] Since both the first positioning part 31 and the second positioning part 32 are provided with positioning clamps 35, the moving range of the first positioning part 31 and the second positioning part 32 in the first direction D1 and the second direction D2 is limited by the limiting part 60, thereby limiting the moving range of the positioning clamps 35. After the product 100 completes positioning, there is a certain gap between the positioning clamps 35 and the product 100, so that the product 100 still has room to move. Therefore, the moving range of the positioning clamps 35 is limited by the limiting part. When the motor is accidentally started or the debugging is misoperated, the positioning clamps 35 can be effectively prevented from squeezing the product 100 and causing damage to the product 100.

[0063] In one feasible embodiment, the limiting part 60 includes an adjusting bolt 61. The base plate 10 is provided with a threaded hole that mates with the adjusting bolt 61. The first positioning part 31 is provided with a through hole. The adjusting bolt 61 passes through the through hole and is threaded into the threaded hole. The depth to which the adjusting bolt 61 is screwed into the threaded hole is determined according to the movable range of the first positioning part 31 and the second positioning part 32. After the position of the adjusting bolt 61 is determined, the distance between the end of the adjusting bolt 61 and the base plate 10 is the movable range of the first positioning part 31. Since the second positioning part 32 and the first positioning part 31 are linked, the movable range of the second positioning part 32 is determined synchronously.

[0064] Based on the above embodiments, product 100 is a mobile phone display screen, the first direction D1 is the length direction of the mobile phone display screen, and the second direction D2 is the width direction of the mobile phone display screen. Before fixing the mobile phone display screen, the adjusting bolt 61 is connected to the base plate 10 to limit the range of movement of the first positioning block 311 and the second positioning block 321.

[0065] Next, place the mobile phone display screen on the carrier plate 20, activate the vacuum device so that the suction cup 51 can adsorb the mobile phone display screen. By observing the vacuum value, check whether the mobile phone display screen is placed flat. After the check is completed, release the vacuum adsorption state.

[0066] Next, the drive motor 411 is started. Under the transmission action of the first synchronous pulley 412, the synchronous belt 414 and the second synchronous pulley 413, the power is transmitted to the cam disk 421, driving the cam disk 421 to rotate. Then, the follower moves along the waist-shaped groove on the cam disk 421, so that the two first positioning blocks 311 move closer to each other along the first direction D1 and the two second positioning blocks 321 move closer to each other along the second direction D2, so as to fix the product 100. During the movement of the first positioning block 311 and the second positioning block 321, if the position of the mobile phone screen is slightly off, it will contact the positioning clamp 35 on the first positioning block 311 or the second positioning block 321, so that the mobile phone screen moves to the accurate position.

[0067] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A positioning device, characterized in that, include: substrate; A carrier plate, which is disposed on the substrate, is used to place the product to be positioned; A positioning component, comprising a first positioning part and a second positioning part, wherein the first positioning part is used to position the product in a first direction, and the second positioning part is used to fix the product in a second direction, wherein the first direction is orthogonal to the second direction; A driving component, comprising a driving part and a transmission part, wherein the driving part is used to drive the transmission part to move along a preset path, and the transmission part is connected to the first positioning part and the second positioning part respectively. When the transmission part moves along the preset path, it can simultaneously drive the first positioning part and the second positioning part to move in the first direction and the second direction respectively, so as to fix or release the product.

2. The positioning device according to claim 1, characterized in that, The transmission part includes a cam disk, on which a plurality of grooves are provided. The plurality of grooves are evenly distributed on the cam disk, and the plurality of grooves are respectively provided corresponding to the first positioning part and the second positioning part. Both the first positioning part and the second positioning part are provided with a follower part. When the cam disk moves along the preset path, the follower moves along the corresponding groove so that the first positioning part and the second positioning part simultaneously move closer to or further away from the center of the cam disk.

3. The positioning device according to claim 2, characterized in that, The preset path is the rotation path of the cam disk with its axis as the center line. The groove is a waist-shaped groove, which includes a first end and a second end. The first end of the waist-shaped groove is closer to the center of the cam disk than the second end of the waist-shaped groove.

4. The positioning device according to claim 3, characterized in that, The drive unit includes a drive motor, a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The first synchronous pulley is connected to the output end of the drive motor, and the first synchronous pulley and the second synchronous pulley are connected by the synchronous belt. The transmission unit is connected to the second synchronous pulley. The drive motor is used to drive the first synchronous pulley to rotate, and the synchronous belt is used to drive the second synchronous pulley to rotate, so that the cam disk moves along the preset path.

5. The positioning device according to any one of claims 2-4, characterized in that, The first positioning part includes two first positioning blocks, which are arranged opposite each other along the first direction. Each first positioning block includes a first base plate and a first baffle perpendicularly connected to the first base plate. The follower part protrudes from the first base plate. The first baffle is used to position the product along the first direction. Both first positioning blocks are connected to a pair of grooves on the cam disk through the follower part at their bottom. When the transmission part moves along the preset path, the two first positioning blocks move towards each other along the first direction.

6. The positioning device according to any one of claims 2-4, characterized in that, The second positioning part includes two second positioning blocks, which are arranged opposite each other along the second direction. Each second positioning block includes a second base plate and a second baffle perpendicularly connected to the second base plate. The follower part protrudes from the second base plate. The second baffle is used to position the product along the second direction. Both second positioning blocks are connected to another pair of grooves on the cam disk through the follower part at their bottom. When the transmission part moves along the preset path, the two second positioning blocks move towards each other along the second direction.

7. The positioning device according to claim 1, characterized in that, The substrate is provided with a guide portion, and both the first positioning portion and the second positioning portion are provided with guide mating portions, and the guide portion and the guide mating portion can form a guide mating.

8. The positioning device according to claim 1, characterized in that, Both the first positioning part and the second positioning part are provided with positioning clamps, which are used to adjust the position of the product on the carrier plate.

9. The positioning device according to claim 1, characterized in that, The carrier plate is provided with a detection unit, which is used to check whether the product to be positioned is located in a preset position. The detection unit includes multiple suction cups, which are used to adsorb the product.

10. The positioning device according to claim 1, characterized in that, The positioning device further includes a limiting part, which is disposed between the substrate and the first positioning part. The limiting part is used to limit the range of movement of the first positioning part and the second positioning part in the first direction and the second direction, respectively.

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