Positioning mechanism

Abstract

The utility model provides a positioning mechanism, and relates to the technical field of product positioning. The positioning mechanism comprises at least two fixing pieces, a positioning assembly and at least one driving assembly, each fixing piece is provided with a fixing face, the two fixing faces are oppositely arranged in the first horizontal direction to form a first positioning space used for positioning a to-be-detected product, the positioning assembly comprises two positioning pieces arranged corresponding to the fixing pieces, and the two positioning pieces are oppositely arranged in the first horizontal direction to form a second positioning space used for positioning the to-be-detected product. The positioning pieces are located at the downstream of the fixing piece in the second horizontal direction, the positioning pieces are provided with positioning surfaces attached to the product, the two positioning surfaces are oppositely arranged along the first horizontal direction to form a second positioning space used for positioning the to-be-detected product, and at least one positioning piece is arranged to be capable of moving in the direction close to or away from the other positioning piece; and each driving assembly is connected with one positioning piece, and the driving assemblies are used for driving the positioning pieces to form a second positioning space. The positioning mechanism provided by the utility model can accurately position the products to be detected, and can adjust the spacing according to the sizes of different products to be detected.

Description

Technical Field

[0001] The utility model relates to the technical field of product positioning, and particularly relates to a positioning mechanism. Background Art

[0002] In industrial production and quality inspection, the precise positioning of a product to be measured is a key factor in ensuring the processing quality of the product and the accuracy of the test. Existing positioning devices usually use fixing parts to clamp the product.

[0003] In the prior art, due to the differences in the shapes and sizes of different products, traditional positioning mechanisms often have limitations in terms of adaptability, positioning accuracy, and product protection. That is to say, the positioning device lacks sufficient adjustment ability during the positioning process. Especially for products with different sizes or shapes, it is usually necessary to replace different jigs or readjust the position of the fixing parts, which is cumbersome and inefficient. Summary of the Utility Model

[0004] One object of the utility model is to provide a positioning mechanism to solve the technical problem that the spacing of the positioning mechanism in the prior art cannot be adjusted.

[0005] Another object of the utility model is to improve the multi-directional guiding function of the positioning mechanism.

[0006] According to the object of the utility model, the utility model provides a positioning mechanism, including:

[0007] At least two fixing parts are arranged on the top of the carrier plate. Each fixing part forms a fixing surface. The two fixing surfaces are arranged opposite to each other in the first horizontal direction to form a first positioning space for positioning the product to be measured.

[0008] A positioning component includes two positioning parts corresponding to the fixing parts. The positioning parts are located downstream of the fixing parts in the second horizontal direction. The second horizontal direction is the moving direction of the product to be measured. The second horizontal direction is perpendicular to the first horizontal direction. The positioning parts have positioning surfaces that fit the product. The two positioning surfaces are arranged opposite to each other in the first horizontal direction to form a second positioning space for positioning the product to be measured. And at least one of the positioning parts is arranged to be movable in a direction close to or away from the other positioning part.

[0009] At least one driving component. Each driving component is connected to a positioning part. The driving component is used to drive the positioning part to move and form the second positioning space.

[0010] Optionally, the fixing part further includes:

[0011] The first guiding portion is arranged to bend away from the first positioning space from the top surface of the fixing member.

[0012] Optionally, the fixing member further includes:

[0013] A second guiding portion is arranged to bend away from the first positioning space from the target side surface of the fixing member, and the target side surface is the side of the fixing member away from the positioning assembly.

[0014] Optionally, fillets are provided at the connection between the first guiding portion and the fixing member and at the connection between the second guiding portion and the fixing member. Optionally, the driving assembly includes:

[0015] At least one connecting rod is connected to the positioning member, and the connecting rod is arranged to be perpendicular to the positioning surface;

[0016] A driving member is connected to the connecting rod, and the driving member is used to drive the connecting rod to move in a direction perpendicular to the positioning surface.

[0017] Optionally, the driving member is a cylinder.

[0018] Optionally, the positioning member connected to the driving assembly is arranged such that the bottom surface thereof is spaced from the top surface of the carrier plate by a preset distance.

[0019] Optionally, the positioning surface has a buffer layer.

[0020] Optionally, the material of the buffer layer is silicone rubber material.

[0021] The positioning mechanism of the present utility model includes at least two fixing members and a positioning assembly. The two fixing members have positioning surfaces arranged opposite to each other, and a first positioning space for positioning the product to be measured is formed between the two positioning surfaces. The fixing surfaces of the two fixing members can effectively fit and fix the product to be measured, and can perform preliminary positioning on the product to be measured, ensuring its stability and accuracy during the positioning process. And at least one positioning member in the positioning assembly is arranged to be movable in a direction close to or away from the other fixing member, that is, the second positioning space formed between the two positioning members can be adjusted according to the sizes of different products to be measured, so as to adapt to products to be measured of different sizes and shapes, and improve the applicability and versatility of the positioning mechanism.

[0022] Further, the first guiding portion of the present utility model is located at the top of the fixing member, and the first guiding portion is arranged to bend away from the first positioning space from the top surface of the fixing member, that is, the two first guiding portions of the two fixing members form a first opening that gradually expands from bottom to top. When the product to be tested is placed from top to bottom in the first positioning space, the first opening can not only guide and position the product to be tested, but the smoothness of its arc-shaped structure can reduce the friction between the product to be tested and the fixing member, avoiding scratching the product to be tested.

[0023] The above description is only an overview of the technical solution of the present utility model. In order to be able to more clearly understand the technical means of the present utility model and to be implemented in accordance with the content of the description, the following takes the preferred embodiments of the present utility model and describes them in detail with reference to the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Some specific embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0025] Figure 1 is a schematic structural diagram of a positioning mechanism according to an embodiment of the present utility model;

[0026] Figure 2 is a schematic cross-sectional view of a positioning mechanism according to an embodiment of the present utility model.

[0027] REFERENCE NUMERALS:

[0028] 100 - positioning mechanism, 200 - product to be tested, 300 - stage, 10 - fixing member, 11 - fixing surface, 20 - positioning assembly, 21 - first positioning member, 22 - second positioning member, 211 - positioning surface, 212 - buffer layer, 30 - driving assembly, 12 - first guiding portion, 13 - second guiding portion, 31 - connecting rod, 32 - driving member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0030] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. It can be understood that the specific embodiments described herein are only for explaining the present application and not for limiting the present application. Additionally, it should be noted that for the convenience of description, only the parts related to the present application rather than all the structures are shown in the drawings. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0031] The terms "comprising" and "having" in this application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0032] Referring to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0033] Figure 1 is a schematic structural diagram of a positioning mechanism according to an embodiment of the present utility model. Figure 2 is a schematic cross-sectional view of a positioning mechanism according to an embodiment of the present utility model.

[0034] As Figure 1As shown in the figure, the present utility model provides a positioning mechanism 100, which includes at least two fixing members 10, a positioning assembly 20, and at least one driving assembly 30. The fixing members 10 are arranged on the top of the carrier plate. Each fixing member 10 forms a fixing surface 11. The two fixing surfaces 11 are arranged opposite to each other in the first horizontal direction to form a first positioning space for positioning the product to be tested 200. The positioning assembly 20 includes two positioning members corresponding to the fixing members 10. The positioning members are located downstream of the fixing members 10 in the second horizontal direction. The second horizontal direction is the moving direction of the product to be tested 200, and the second horizontal direction is perpendicular to the first horizontal direction and parallel to the fixing members 10. The positioning members have positioning surfaces 211 that fit the product. The two positioning surfaces 211 are arranged opposite to each other in the first horizontal direction to form a second positioning space for positioning the product to be tested 200. And at least one positioning member is arranged to be movable in a direction close to or away from the other positioning member. Each driving assembly 30 is connected to a positioning member, and the driving assembly 30 is used to drive the positioning member to move and form the second positioning space. Here, the number of the fixing members 10 can be two, four, or more.

[0035] In this embodiment, the positioning mechanism 100 includes at least two fixing members 10 and a positioning assembly 20. The two fixing members 10 have positioning surfaces 211 arranged opposite to each other. A first positioning space for positioning the product to be tested 200 is formed between the two positioning surfaces 211. The fixing surfaces 11 of the two fixing members 10 can effectively fit and fix the product to be tested 200, and can preliminarily position the product to be tested 200 to ensure its stability and accuracy during the positioning process. And at least one positioning member in the positioning assembly 20 is arranged to be movable in a direction close to or away from the other fixing member 10, that is, the second positioning space formed between the two positioning members can be adjusted according to the sizes of different products to be tested 200, so as to adapt to products to be tested 200 with different sizes and shapes, and improve the applicability and versatility of the positioning mechanism 100.

[0036] In this embodiment, by controlling the distance between the two positioning members through the driving assembly 30, it can be ensured that the pressure is evenly distributed when the positioning members clamp the product, avoiding excessive local extrusion of the product, thereby protecting the product to be tested 200 from deformation or damage. In addition, the introduction of the driving assembly 30 enables the movement of the positioning members to be automated without manual intervention, improves the operation efficiency, reduces the positioning error caused by human factors, and ensures the high efficiency and repeatability of the entire positioning process.

[0037] As Figure 1As shown, in this embodiment, the number of the fixing members 10 is two, and the number of the driving components 30 is one. The two positioning members are respectively a first positioning member 21 and a second positioning member 22. The first positioning member 21 is arranged to be connected to the driving component 30. That is, in the positioning mechanism 100 of this embodiment, the first positioning space formed by the two fixing members 10 is used for preliminarily positioning the product 200 to be measured. The driving component 30 drives the one positioning member connected thereto to move towards the other positioning member to form a second positioning space adapted to the width of the product 200 to be measured, so that the positioning mechanism 100 in this embodiment can be adjusted according to the size of the product 200 to be measured, thereby realizing the precise positioning and fixing of the positioning mechanism 100.

[0038] As Figure 1 shown, in a further embodiment, the fixing member 10 further includes a first guiding portion 12, and the first guiding portion 12 is arranged to bend from the top surface of the fixing member 10 in a direction away from the first positioning space. In this embodiment, the first guiding portion 12 is located at the top of the fixing member 10, and the first guiding portion 12 is arranged to bend from the top surface of the fixing member 10 in a direction away from the first positioning space. That is, the two first guiding portions 12 of the two fixing members 10 form a first opening that gradually expands from bottom to top. When the product 200 to be measured is placed in the first positioning space from top to bottom, the first opening can not only play a role in guiding and positioning the product 200 to be measured, but the smoothness of its arc structure can reduce the friction between the product 200 to be measured and the fixing member 10, avoiding scratching the product 200 to be measured.

[0039] As Figure 1 shown, in a further embodiment, the fixing member 10 further includes a second guiding portion 13, and the second guiding portion 13 is arranged to bend from the target side surface of the fixing member 10 in a direction away from the first positioning space. The target side surface is the side of the fixing member 10 away from the positioning assembly 20. In this embodiment, the second guiding portion 13 is located at the end of the fixing member 10, and the second guiding portion 13 is arranged to bend from the side surface of the fixing member 10 in a direction away from the first positioning space. That is, the two second guiding portions 13 of the two fixing members 10 form a gradually expanding second opening in the horizontal direction away from the fixing member 10 on the side surface of the fixing member 10. When the product 200 to be measured is moved in the horizontal extension direction of the fixing member 10, the second opening can not only play a role in guiding and positioning the product 200 to be measured, but the smoothness of its arc structure can reduce the friction between the product 200 to be measured and the fixing member 10, avoiding scratching the product 200 to be measured.

[0040] In a further embodiment, rounded corners are provided at the connection between the first guiding portion 12 and the fixing member 10 and at the connection between the second guiding portion 13 and the fixing member 10. In this embodiment, rounded corners are provided at the connection between the first guiding portion 12 and the fixing member 10 and at the connection between the second guiding portion 13 and the fixing member 10. The rounded corners are provided to form a smooth fixing surface 11 on the side of the fixing member 10 close to the product under test 200, so as to avoid scratching and wear of the product under test 200 when it is placed in the first positioning space and comes into contact with the fixing member 10.

[0041] As Figure 2 shown, in a further embodiment, the driving assembly 30 includes at least one connecting rod 31 and a driving member 32. The connecting rod 31 is connected to the positioning member, and the connecting rod 31 is arranged perpendicular to the positioning surface 211. The driving member 32 is connected to the connecting rod 31, and the driving member 32 is used to drive the connecting rod 31 to move in a direction perpendicular to the positioning surface 211. In this embodiment, the driving member 32 drives the positioning surface 211 to move in a direction perpendicular to the positioning surface 211 through the connecting rod 31, which can achieve precise adjustment of the positioning surface 211, so that the positioning mechanism 100 can flexibly adjust the height or position of the positioning surface 211 according to the size or position requirements of the product under test 200, thereby ensuring the stability and accuracy of the product. Moreover, since the connecting rod 31 is arranged perpendicular to the positioning surface 211 and its movement is controlled by the driving member 32, the positioning mechanism 100 can adapt to products under test 200 with different heights and shapes. This vertical adjustability improves the versatility of the device, enabling it to be used for positioning operations of various products.

[0042] In this embodiment, by moving the connecting rod 31 and the positioning surface 211 in the vertical direction by the driving member 32, it can be ensured that the pressure applied to the product is uniform, reducing the concentrated stress that may occur during the positioning process, thereby preventing excessive squeezing force on the product and avoiding deformation or damage to the product. In addition, the perpendicular arrangement of the connecting rod 31 and the positioning surface 211 enhances the mechanical stability of the entire positioning structure, enabling high-precision operations to be maintained during positioning and movement, reducing positioning errors caused by vibration or impact, and improving the reliability of the positioning mechanism 100.

[0043] In a further embodiment, the driving member 32 is a cylinder. In this embodiment, the driving member 32 is configured as a cylinder. Since the cylinder can provide a stable and powerful driving force, it can ensure the smooth and reliable movement of the connecting rod 31 and the positioning surface 211. The cylinder has a fast response speed and can quickly execute the positioning instruction. The design of the pneumatic system usually has good repeatability and consistency, can maintain the same positioning effect in multiple operations, and reduce errors. Moreover, the structure of the cylinder is simple, and since the pneumatic system is not prone to generating heat and has less wear, it has high durability and low cost. In other embodiments, the driving member 32 can also be configured as a servo motor.

[0044] As Figure 2 shown, in a further embodiment, the positioning member connected to the driving assembly 30 is arranged such that the bottom surface thereof is spaced apart from the top surface of the carrier plate by a preset distance. In this embodiment, the positioning member in the positioning mechanism 100 connected to the driving assembly 30 is arranged such that the bottom surface thereof is spaced apart from the top surface of the carrier plate by a preset distance, that is, the positioning member connected to the driving mechanism is disposed above the carrier plate, reducing the friction generated when the driving assembly 30 drives the positioning member to move, avoiding the wear of the positioning member and the carrier plate, and at the same time reducing the resistance generated when the driving member 32 drives the positioning member to move, avoiding the movement of the driving member 32 from being blocked.

[0045] As Figure 2 shown, in a further embodiment, the positioning surface 211 has a buffer layer 212. In this embodiment, the positioning surface 211 has a buffer layer 212, that is, the buffer layer 212 can effectively and evenly distribute the pressure exerted by the positioning surface 211 on the product to be measured 200, avoiding the generation of concentrated stress, preventing the positioning surface 211 from exerting excessive pressure on a local area of the product when positioning and fixing the product under the drive of the driving assembly 30, thereby reducing the risk of product damage. At the same time, the presence of the buffer layer 212 can absorb and relieve the pressure, avoiding the deformation or damage of the product caused by excessive extrusion. The buffer layer 212 can also absorb and relieve the vibration or impact that may occur during the positioning process, thereby reducing the influence on the product to be measured 200.

[0046] In a further embodiment, the material of the buffer layer 212 is silicone rubber material. In this embodiment, the silicone rubber material has excellent elasticity and softness, can effectively buffer the pressure during the positioning process, evenly distribute the stress exerted on the product to be measured 200, thereby reducing local pressure concentration, preventing the product from deforming or being damaged. The silicone rubber material can still return to its original state after repeated compression, has good resistance to compressive deformation, so that the buffer layer 212 can still maintain its buffering and protection effect after long-term use and is not prone to permanent deformation. At the same time, the silicone rubber has a moderate coefficient of friction, can enhance the friction between the positioning surface 211 and the product to be measured 200, prevent the product from sliding during the positioning process, and thus improve the stability of positioning.

[0047] In this embodiment, first, the product 200 to be measured is moved downward from above the fixing member 10 towards the first positioning space until the bottom of the product 200 to be measured is in contact with the stage 300, completing the preliminary positioning of the product 200 to be measured. Subsequently, the product 200 to be measured is moved towards the side close to the positioning assembly 20 along the second horizontal direction until its side surface abuts against the positioning surface 211 in the second positioning member 22. The first positioning member 21 is moved along the first horizontal direction towards the second positioning member 22 under the drive of the drive assembly 30 until the positioning surface 211 of the first positioning member 21 is in contact with the other side surface of the product 200 to be measured, so as to perform secondary positioning on the product 200 to be measured and fix the position of the product 200 to be measured.

[0048] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0049] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A positioning mechanism, characterized in that: include: At least two fixing members are arranged on the top of the carrier plate, each of the fixing members is formed with a fixing surface, and the two fixing surfaces are arranged opposite to each other along a first horizontal direction to form a first positioning space for positioning the product to be tested; A positioning assembly, comprising two positioning members arranged corresponding to the fixing member, the positioning members being located downstream of the fixing member in a second horizontal direction, the second horizontal direction being the moving direction of the product to be tested, the second horizontal direction being perpendicular to the first horizontal direction, the positioning member having a positioning surface fitted with the product, the two positioning surfaces being arranged opposite to each other along the first horizontal direction to form a second positioning space for positioning the product to be tested, and at least one of the positioning members being arranged to be movable in a direction approaching or away from another positioning member; At least one driving assembly, each of which is connected to one of the positioning members, and the driving assembly is used to drive the positioning member to move and form the second positioning space.

2. The positioning mechanism according to claim 1, characterized in that: The fixing member also includes: The first guide portion is configured to bend from the top surface of the fixing member toward a direction away from the first positioning space.

3. The positioning mechanism according to claim 2, characterized in that: The fixing member also includes: The second guide portion is configured to bend from a target side surface of the fixing member toward a direction away from the first positioning space, and the target side surface is a side of the fixing member away from the positioning assembly.

4. The positioning mechanism according to claim 3, characterized in that: A connection point between the first guide portion and the fixing member and a connection point between the second guide portion and the fixing member are both provided with rounded corners.

5. The positioning mechanism according to claim 4, characterized in that: The drive assembly comprises: At least one connecting rod connected to the positioning member, and the connecting rod is arranged to be perpendicular to the positioning surface; A driving member is connected to the connecting rod, and the driving member is used to drive the connecting rod to move in a direction perpendicular to the positioning surface.

6. The positioning mechanism according to claim 5, characterized in that: The driving member is a cylinder.

7. The positioning mechanism according to claim 6, characterized in that: The positioning member connected to the driving assembly is arranged so that a bottom surface thereof is spaced a preset distance from a top surface of the carrier plate.

8. The positioning mechanism according to any one of claims 1 to 7, characterized in that: The positioning surface has a buffer layer.

9. The positioning mechanism according to claim 8, characterized in that: The material of the buffer layer is silicone rubber material.

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