Positioning device and clamp positioning system

Abstract

This application relates to the field of fixture technology, and discloses a positioning device and a fixture positioning system. The positioning device provided in this application includes a base assembly, a drive mechanism, an identification unit, and at least two positioning members. The base assembly has a mounting portion, and each positioning member is movably mounted on the base assembly. The drive mechanism includes a rotating member and a drive assembly. The rotating member and at least part of the drive assembly are mounted on the base assembly. The rotating member is driveably connected to each positioning member, and the drive assembly is driveably connected to the rotating member. The drive assembly moves relative to the base assembly, causing the rotating member to rotate, thereby driving each positioning member to move towards the center of the mounting portion. Each positioning member abuts against a positioning body, pushing the positioning body to the center of the mounting portion. The identification unit performs image recognition on the orientation of the positioning body relative to the center. According to the positioning device provided in this application, precise adjustment of the orientation of the assembly can be achieved, thereby ensuring the processing or assembly accuracy of the product.

Description

Technical Field

[0001] This application relates to the field of fixture technology, and in particular to a positioning device and fixture positioning system. Background Technology

[0002] During the processing or assembly of the product, the product is positioned by a fixture to form an assembly of the fixture and the product. The assembly is then transported to the worktable of the processing or assembly equipment by a robot arm and connected to the positioning structure of the worktable to position the assembly on the worktable.

[0003] In related technologies, a locating pin is provided on the fixture, and a locating structure (e.g., a locating hole) that cooperates with the locating pin is provided on the worktable. When the robot moves the assembly to the designated position, the locating pin needs to be inserted into the locating hole to ensure the locating accuracy, thereby ensuring the machining accuracy or assembly accuracy.

[0004] However, due to the existence of movement errors of the robotic arm, the positioning pin and the positioning hole may not be properly inserted, thus affecting the processing or assembly accuracy of the product. Utility Model Content

[0005] In view of this, the present application provides a positioning device and a fixture positioning system to solve the problem that the existing robot arm motion error causes the positioning pin and positioning hole to not be properly inserted, thus affecting the product processing or assembly accuracy.

[0006] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0007] In a first aspect, embodiments of this application provide a positioning device, including:

[0008] A base assembly having a mounting section;

[0009] At least two positioning elements are provided, each of which is movably mounted on the base assembly.

[0010] A drive mechanism, comprising a rotating component and a drive assembly, wherein the rotating component and at least part of the drive assembly are disposed on a base assembly, the rotating component is drivenly connected to each positioning component, and the drive assembly is drivenly connected to the rotating component.

[0011] Identification unit;

[0012] The drive assembly is configured such that when the positioning body on the assembly is located within a preset area of ​​the mounting portion, at least a portion of the drive assembly moves relative to the base assembly, thereby causing the rotating member to rotate and drive each positioning member to move toward the center of the mounting portion, with each positioning member abutting against the positioning body to push the positioning body to the center of the mounting portion; the recognition unit is configured to perform image recognition on at least the orientation of the positioning body relative to the center to coordinate with the movement of the drive assembly.

[0013] The positioning device provided in this application includes a base assembly, a drive mechanism, and at least two positioning members. A mounting portion is provided on the base assembly for positioning the positioning bodies on the assembly. Each positioning member is moved on the base assembly towards or away from the center of the mounting portion. The drive mechanism includes a rotating member and a drive assembly. The rotating member and at least a portion of the drive assembly are mounted on the base assembly. The rotating member is connected to each positioning member in a transmission manner, and the drive assembly is connected to the rotating member in a transmission manner. When the positioning body on the assembly is located within a preset area of ​​the mounting portion, at least a portion of the drive assembly moves relative to the base assembly, causing the rotating member to rotate and drive each positioning member to move towards the center of the mounting portion. Each positioning member abuts against the positioning body, pushing the positioning body to the center of the mounting portion. The recognition unit performs image recognition on the orientation of the positioning body relative to the center to coordinate with the movement of the drive assembly. By adjusting the positioning body to coincide with the center of the mounting portion, precise adjustment of the assembly's orientation is achieved, thereby ensuring the processing or assembly accuracy of the product.

[0014] In one possible implementation of this application, the drive component includes a movable member, which is disposed on the base assembly and is drively connected to the rotating member;

[0015] The movable component is configured to move relative to the base assembly along the circumferential tangent of the rotating component, thereby causing the rotating component to rotate.

[0016] In one possible implementation of this application, the driving component further includes a driving element connected to the rotating element and used to drive the moving element to move.

[0017] In one possible implementation of this application, the rotating member has at least two first transmission parts on the side facing the positioning member, and each positioning member has a second transmission part on the side facing the rotating member.

[0018] Each second transmission part is matched with a corresponding first transmission part, and each second transmission part is connected to the corresponding first transmission part in a transmission connection.

[0019] The second transmission unit is configured to slide relative to the first transmission unit when the rotating member rotates, so as to drive the corresponding positioning member to slide.

[0020] In one possible implementation of this application, the first transmission part is a groove, which is obliquely arranged on a portion of the periphery of the mounting part, with one end of the groove close to the mounting part and the other end away from the mounting part;

[0021] The second transmission part is a protrusion that matches the groove, and the protrusion is slidably connected to the groove.

[0022] In one possible implementation of this application, the positioning member has a positioning portion on the side facing the mounting portion, which is used to mate with a portion of the peripheral wall of the positioning body.

[0023] In one possible implementation of this application, the number of positioning elements is at least three, and each positioning element is evenly distributed around the periphery of the mounting part.

[0024] In one possible implementation of this application, the base assembly has a first sliding portion on the side facing the positioning member, and the positioning member has a second sliding portion on the side facing the base assembly.

[0025] The sliding directions of the second sliding part and the first sliding part are arranged along the direction close to or far from the center of the mounting part. The second sliding part matches the corresponding first sliding part, and the second sliding part is slidably connected to the corresponding first sliding part.

[0026] In one possible implementation of this application, the base assembly includes a base and a cover connected to the base, and at least one of the base and the cover has a mounting cavity;

[0027] The rotating component and part of the drive assembly are located inside the mounting cavity, while the mounting part and the first sliding part are located on the cover.

[0028] Secondly, embodiments of this application provide a fixture positioning system, including an assembly and at least one positioning device provided in the first aspect above. The assembly has at least one positioning body, and the positioning body is positioned and connected to the corresponding positioning device. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a partial structural schematic diagram of the positioning device provided in the embodiments of this application;

[0031] Figure 2 for Figure 1 A partial structural diagram after the second base has been removed;

[0032] Figure 3 This is a partial structural schematic diagram of the clamp positioning system provided in the embodiments of this application;

[0033] Figure 4 for Figure 3 A schematic diagram of the structure along direction A in the middle.

[0034] Figure label:

[0035] 10: Assemblies;

[0036] 11: Positioning element;

[0037] 20: Limiting components;

[0038] 100: Base assembly;

[0039] 101: Installation Department;

[0040] 102: First sliding part;

[0041] 110: Base;

[0042] 111: Installation cavity;

[0043] 120: Cover;

[0044] 200: Positioning component;

[0045] 210: Positioning section;

[0046] 220: Second sliding part;

[0047] 230: Second transmission unit;

[0048] 300: Drive mechanism;

[0049] 310: Rotating component;

[0050] 311: First transmission unit;

[0051] 320: Driver component;

[0052] 321: Moving parts;

[0053] 322: Drive component;

[0054] 400: Identification unit. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0056] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0057] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0058] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0059] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0060] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0061] This application provides a positioning device and a fixture positioning system for a robotic arm. The robotic arm can be a multi-degree-of-freedom robotic arm that can grasp or release assemblies. The assemblies include fixtures and products fixed thereon. The robotic arm can transport the assemblies to the worktable of processing equipment or assembly equipment.

[0062] Currently, the fixtures for assemblies are equipped with locating pins, and the worktable has a positioning structure (e.g., a positioning hole) that mates with the locating pins. When the robot moves the assembly to the designated position, the locating pin needs to be inserted into the positioning hole to ensure positioning accuracy, thereby ensuring machining or assembly accuracy. However, due to the robot's own motion error, there may be a deviation in the axis between the locating pin and the positioning hole, resulting in incomplete insertion of the locating pin and the positioning hole. This causes a deviation between the actual position of the assembly and the designed position, making it impossible to guarantee machining or assembly accuracy when processing or assembling the product on the processing or assembly equipment. Furthermore, when the clamping mechanism on the worktable clamps the assembly, it cannot clamp it accurately, and may even cause deformation or damage to the fixture, rendering it unusable and increasing costs.

[0063] To address the aforementioned issues, this application provides a positioning device and a fixture positioning system. The positioning device includes a base assembly, a drive mechanism, and at least two positioning components. A mounting portion is provided on the base assembly for positioning the positioning bodies on the assembly. Each positioning component is moved on the base assembly towards or away from the center of the mounting portion. The drive mechanism includes a rotating component and a drive assembly. The rotating component and at least a portion of the drive assembly are mounted on the base assembly. The rotating component is connected to each positioning component via a transmission connection, and the drive assembly is connected to the rotating component via a transmission connection. When the positioning body on the assembly is located within a preset area of ​​the mounting portion, at least a portion of the drive assembly moves relative to the base assembly, causing the rotating component to rotate and drive each positioning component to move towards the center of the mounting portion. Each positioning component abuts against the positioning body, pushing the positioning body to the center of the mounting portion. A recognition unit performs image recognition on at least the orientation of the positioning body relative to the center to coordinate with the movement of the drive assembly. By adjusting the positioning body to coincide with the center of the mounting portion, precise adjustment of the assembly's orientation is achieved, thereby ensuring the processing or assembly accuracy of the product.

[0064] The positioning device provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0065] Please refer to Figures 1-2 As shown, this application provides a positioning device, including a base assembly 100, a drive mechanism 300, an identification unit 400 and at least two positioning members 200. The base assembly 100 has a mounting part 101, and each positioning member 200 is movably disposed on the base assembly 100.

[0066] The drive mechanism 300 includes a rotating member 310 and a drive assembly 320. The rotating member 310 and at least part of the drive assembly 320 are disposed on the base assembly 100. The rotating member 310 is connected to each positioning member 200 in a transmission manner, and the drive assembly 320 is connected to the rotating member 310 in a transmission manner.

[0067] The drive assembly 320 is configured such that, when the positioning body 11 on the assembly 10 is located within a preset area of ​​the mounting portion 101, at least a portion of the drive assembly 320 moves relative to the base assembly 100, thereby causing the rotating member 310 to rotate. This drives each positioning member 200 to move towards the center of the mounting portion 101, with each positioning member 200 abutting against the positioning body 11 to push the positioning body 11 to the center of the mounting portion 101. The recognition unit 400 is configured to perform image recognition on at least the orientation of the positioning body 11 relative to the center, in order to coordinate with the movement of the drive assembly 320.

[0068] In this embodiment, the base assembly 100 is used to support the positioning member 200 and part of the drive mechanism 300, and to provide a mounting base. It can be a combined structure or an integral structure. The base assembly 100 has a mounting part 101, which can be a mounting cavity, mounting hole, mounting groove, etc., for positioning and adjusting the positioning body 11 on the assembly 10. The positioning body 11 can be a positioning pin, positioning post, positioning rod, etc., so that the center of the positioning body 11 coincides with the center of the mounting part 101.

[0069] In this embodiment, the positioning element 200 is used to move and adjust the positioning body 11 on the assembly 10 towards the center of the mounting part 101. It can be a positioning block, positioning plate, etc. Each positioning element 200 can be connected to the base assembly 100 through a sliding structure, guide rail mechanism, etc., and each positioning element 200 can move in a direction close to or away from the center of the mounting part 101, that is, move radially along the center of the mounting part 101.

[0070] In this embodiment, the driving mechanism 300 is used to drive each positioning component 200 to move. It can be a gear transmission mechanism, a telescopic mechanism, etc. Specifically, it can include a rotating component 310 and a driving assembly 320. The rotating component 310 can be a gear, a pulley, a turntable, etc. It can be connected to the base assembly 100 through a rotating shaft, a rotating structure, etc. The rotation axis of the rotating component 310 is arranged in the vertical direction.

[0071] Furthermore, the rotating member 310 and each positioning member 200 are connected by a transmission structure, such as a sliding transmission structure or a screw transmission structure. In addition, the drive assembly 320 is used to drive the rotating member 310 to rotate. It can be a telescopic mechanism, that is, at least part of the drive assembly 320 is connected to the base assembly 100, and at least part of the drive assembly 320 can move relative to the base assembly 100. By driving the rotating member 310 through the transmission connection between the drive assembly 320 and the rotating member 310, the rotating member 310 can be driven to rotate, thereby driving each positioning member 200 to move towards or away from the center of the mounting part 101, resulting in a more compact structure.

[0072] The identification unit 400 in this embodiment can be an industrial camera or a vision sensor, etc. It can be set on one side of the base assembly 100 or on the base assembly 100. The camera on the identification unit 400 can face the mounting part 101 to perform image recognition on the orientation of the positioning body 11 relative to the center, so as to cooperate with the movement operation of the drive assembly 320 and ensure positioning accuracy.

[0073] Specifically, such as Figure 3 As shown, the robotic arm grasps the assembly 10 and moves it laterally and then downward toward the worktable. When the positioning body 11 on the assembly 10 is located within the preset area of ​​the mounting part 101, at least part of the drive mechanism 300 moves relative to the base assembly 100, thereby driving the rotating part 310 to rotate. This drives each positioning part 200 to move toward the center of the mounting part 101. Each positioning part 200 abuts against the positioning body 11, pushing the positioning body 11 to the center of the mounting part 101. During this process, the recognition unit 400 can perform image recognition on the orientation of the positioning body 11 relative to the center to coordinate with the movement of the drive assembly 320. If it is not pushed into place, the drive assembly 320 continues to move, which facilitates the processing equipment or assembly equipment to process or assemble the product of the assembly 10. At this time, the robotic arm releases the assembly 10, completing the handling.

[0074] It is understandable that, compared to existing positioning structures that only use positioning pins inserted into positioning holes, the positioning device provided in this embodiment achieves precise adjustment of the orientation of the assembly 10 by adjusting the positioning body 11 to coincide with the center of the mounting part 101, thereby ensuring the processing or assembly accuracy of the product. Moreover, since each positioning member 200 is initially located away from the center of the mounting part 101, the positioning body 11 will not collide or interfere with each positioning member 200.

[0075] It should be noted that if there are only two positioning elements 200, the two positioning elements 200 should preferably be arranged on opposite sides of the mounting part 101, and should not be arranged on the same side of the mounting part 101 as much as possible. That is, the central angle between the two positioning elements 200 and the center of the mounting part 101 should be greater than or equal to 90°. Therefore, the number, shape, position, etc. of the positioning elements 200 can be determined according to actual needs.

[0076] Therefore, the positioning device provided in this application embodiment includes a base assembly 100, a drive mechanism 300, and at least two positioning members 200. A mounting portion 101 is provided on the base assembly 100 to position the positioning body 11 on the assembly 10. Each positioning member 200 is movably disposed on the base assembly 100 and moves towards or away from the center of the mounting portion 101. The drive mechanism 300 includes a rotating member 310 and a drive assembly 320. The rotating member 310 and at least a portion of the drive assembly 320 are disposed on the base assembly 100. The rotating member 310 is connected to each positioning member 200 in a transmission connection, and the drive assembly 320 is connected to the rotating member 310 in a transmission connection. Next, when the positioning body 11 on the assembly 10 is located within the preset area of ​​the mounting part 101, at least part of the drive component 320 moves relative to the base assembly 100, thereby driving the rotating component 310 to rotate, so as to drive each positioning component 200 to move toward the center of the mounting part 101. Each positioning component 200 abuts against the positioning body 11, so as to push the positioning body 11 to the center of the mounting part 101. The recognition unit 400 performs image recognition on the orientation of the positioning body 11 relative to the center, so as to coordinate with the movement of the drive component 320. By adjusting the positioning body 11 to coincide with the center of the mounting part 101, the orientation of the assembly 10 is precisely adjusted, thereby ensuring the processing or assembly accuracy of the product.

[0077] In some embodiments, the drive assembly 320 includes a movable element 321, which is disposed on the base assembly 100 and is drively connected to the rotating element 310.

[0078] The movable member 321 is configured to move relative to the base assembly 100 along the circumferential tangential direction of the rotating member 310, so as to drive the rotating member 310 to rotate.

[0079] For example, such as Figure 2 As shown, the moving part 321 can be a rack, and the rotating part 310 is a gear that matches the rack. The rack and the gear cooperate to drive the transmission. The rack can be connected to the base assembly 100 through a slide or guide assembly and moves along the tangential direction of the gear. That is, the moving direction of the moving part 321 is perpendicular to the rotation axis of the rotating part 310.

[0080] In this way, when the moving component 321 moves, it can drive the rotating component 310 to rotate, thereby driving the positioning components 200 to move. The arrangement of the transmission components is more reasonable and the structure is more compact. Of course, the moving component 321 and the rotating component 310 can also be replaced by other types of transmission structures, such as linkage mechanisms. Any transmission structure that satisfies the requirement of driving the rotating component 310 to rotate through the movement of the moving component 321 is acceptable. It can be determined according to actual needs, and no excessive restrictions are imposed in this embodiment.

[0081] Furthermore, in this embodiment, the driving component 320 also includes a driving member 322, which is connected to the rotating member 310 and is used to drive the moving member 321 to move.

[0082] For example, such as Figure 2 As shown, the driving component 322 can be a telescopic component such as a cylinder, hydraulic cylinder, or electric push rod. The telescopic end of the telescopic component is connected to the moving component 321, and the telescopic direction is consistent with the moving direction of the moving component 321. In this way, when the telescopic component extends or retracts, the rotating component 310 is rotated under the driving action of the moving component 321, resulting in a more reasonable arrangement of transmission components and a more compact structure.

[0083] Of course, the specific structure, specifications, and layout of the drive component 320 can be determined according to actual needs, and no specific limitations are made in this embodiment.

[0084] In some embodiments, the rotating member 310 has at least two first transmission parts 311 on the side facing the positioning member 200, and each positioning member 200 has a second transmission part 230 on the side facing the rotating member 310.

[0085] Each second transmission unit 230 is matched with a corresponding first transmission unit 311, and each second transmission unit 230 is connected to the corresponding first transmission unit 311 in a transmission connection.

[0086] The second transmission unit 230 is configured to slide relative to the first transmission unit 311 when the rotating member 310 rotates, so as to drive the corresponding positioning member 200 to slide.

[0087] With this configuration, the rotating component 310 and each positioning component 200 are connected by the cooperation of the first transmission part 311 and each second transmission part 230, making the transmission structure more compact and the arrangement more reasonable.

[0088] In one example, combining Figure 1 , Figure 2 As shown, the first transmission part 311 is a groove, which is inclinedly arranged on part of the periphery of the mounting part 101, with one end of the groove close to the mounting part 101 and the other end away from the mounting part 101.

[0089] The second transmission part 230 is a protrusion that matches the groove, and the protrusion is slidably connected to the groove.

[0090] The groove can be an arc-shaped groove that extends circumferentially along the mounting portion 101, with one end close to the mounting portion 101 and the other end gradually moving away from it. The second transmission portion 230 is a protrusion that matches the groove, such as a protruding post or a ball head, and the protrusion is slidably connected to the groove. In this way, when the rotating member 310 rotates, the groove drives the protrusion to move radially only along the center of the mounting portion 101, thereby driving the corresponding positioning member 200 to move radially.

[0091] In another example, not shown in the figure, the first transmission part 311 can also be a protrusion arranged in a spiral shape. Correspondingly, the second transmission part 230 can also be a matching groove, also arranged in a spiral shape. The protrusion and the groove are connected in a transmission manner, which can also achieve stable transmission between the rotating part 310 and each positioning part 200. The specific structure and size of the groove and the protrusion can be determined according to actual needs, and no excessive restrictions are imposed in this embodiment.

[0092] In some embodiments, the positioning member 200 has a positioning portion 210 on the side facing the mounting portion 101, the positioning portion 210 being used to mate with a portion of the peripheral wall of the positioning body 11.

[0093] For example, such as Figure 1 or Figure 2 As shown, the positioning part 210 is an arc-shaped concave surface, and the positioning body 11 can be a columnar structure such as a positioning pin or a positioning post. The peripheral wall of the arc-shaped concave positioning body 11 is matched to ensure higher positioning accuracy and more stable positioning.

[0094] Of course, the shape, size, and position of the positioning part 210 are related to the shape, size, and position of the positioning body 11. Therefore, the shape, size, and position of the positioning part 210 can be determined according to actual needs, and no specific limitation is made in this embodiment.

[0095] In some embodiments, the number of positioning members 200 is at least three, and each positioning member 200 is evenly distributed around the periphery of the mounting portion 101.

[0096] Specifically, such as Figure 1 As shown, there are three positioning elements 200, which are arranged in a circular array around the mounting part 101, that is, the three positioning elements 200 are arranged at 120° to each other. In this way, by moving the three positioning elements 200 simultaneously toward the mounting part 101 and pressing against the peripheral wall of the positioning body 11, the centering accuracy is higher, the force is more balanced, and the structure is more reasonable.

[0097] Of course, the number of positioning components 200 can also be set to more, such as four, five, six, etc., depending on the actual needs. This embodiment does not impose too many restrictions.

[0098] In some embodiments, the base assembly 100 has a first sliding portion 102 on the side facing the positioning member 200, and the positioning member 200 has a second sliding portion 220 on the side facing the base assembly 100.

[0099] The sliding direction of the second sliding part 220 and the first sliding part 102 is arranged along the direction of being close to or away from the center of the mounting part 101. The second sliding part 220 matches the corresponding first sliding part 102, and the second sliding part 220 is slidably connected to the corresponding first sliding part 102.

[0100] In one example, such as Figure 1 , Figure 2 As shown, the first sliding part 102 can be a groove, such as a T-shaped groove or a dovetail groove, which is arranged in a direction close to or away from the center of the mounting part 101. Correspondingly, the second sliding part 220 can be a tooth that matches the groove, such as a T-shaped tooth or a dovetail tooth, which extends in a direction close to or away from the center of the mounting part 101. The groove and the tooth are slidably connected.

[0101] In this way, the positioning member 200 can be radially and stably slid relative to the base assembly 100 along the center of the mounting portion 101, so as to push and adjust the positioning body 11 or release the positioning body 11.

[0102] In another example, not shown in the figure, the first sliding part 102 can also be a sliding tooth. Correspondingly, the second sliding part 220 can be a sliding groove that matches the sliding tooth. The sliding groove and the sliding tooth are slidably connected, which can also realize the stable radial movement of the positioning member 200 relative to the base assembly 100 along the center of the mounting part 101.

[0103] Of course, the first sliding part 102 and the second sliding part 220 can also be replaced by other types of sliding structures, which can be determined according to actual needs. This embodiment does not impose too many restrictions.

[0104] Furthermore, in this embodiment, the base assembly 100 includes a base 110 and a cover 120 connected to the base 110, and at least one of the base 110 and the cover 120 has a mounting cavity 111.

[0105] The rotating component 310 and the partially moving component 321 are located in the mounting cavity 111, and the mounting part 101 and the first sliding part 102 are located on the cover 120.

[0106] With this setting, such as Figure 1 , Figure 2 As shown, the base assembly 100 is assembled from the base 110 and the cover 120, which facilitates the installation of the rotating part 310 and part of the moving part 321 inside the base assembly 100.

[0107] For example, both the base 110 and the cover 120 can be circular block structures. The base 110 has a mounting cavity 111 to facilitate the installation of the rotating part 310 and part of the moving part 321. The cover 120 covers the base 110 and can be connected by screws, snaps, etc., which facilitates processing and assembly.

[0108] The mounting cavity 111 can also be located on the side of the cover 120 facing the base 110. Of course, the base assembly 100 can also be replaced by other types of structures, such as a shell structure. The specific composition, structure, shape, etc. of the base assembly 100 can be determined according to actual needs, and no excessive restrictions are imposed in this embodiment.

[0109] Secondly, such as Figure 3 , Figure 4 As shown, this application embodiment also provides a fixture positioning system, including an assembly 10 and at least one positioning device as described in any of the above embodiments. The assembly 10 has at least one positioning body 11, and the positioning body 11 is positioned and connected to the corresponding positioning device. For example, two positioning bodies 11 can be arranged opposite to each other on the assembly 10, and correspondingly, two positioning devices are arranged on the worktable so that the two positioning bodies 11 cooperate with the two positioning devices for positioning, resulting in higher positioning accuracy.

[0110] The structure of the positioning device has been described in detail in the above embodiments, and will not be repeated here.

[0111] It is understood that the fixture positioning system provided in this application embodiment, by setting the above-mentioned positioning device, includes a base assembly 100, a drive mechanism 300, and at least two positioning elements 200. A mounting portion 101 is provided on the base assembly 100 for positioning the positioning body 11 on the assembly 10. Each positioning element 200 is movably disposed on the base assembly 100, moving towards or away from the center of the mounting portion 101. The drive mechanism 300 includes a rotating element 310 and a drive assembly 320. The rotating element 310 and at least a portion of the drive assembly 320 are disposed on the base assembly 100. The rotating element 310 is connected to each positioning element 200 in a transmission manner, and the drive assembly 320 is provided... The 0 is connected to the rotating component 310. When the positioning body 11 on the assembly 10 is located in the preset area of ​​the mounting part 101, at least part of the driving component 320 moves relative to the base assembly 100, thereby driving the rotating component 310 to rotate, so as to drive each positioning component 200 to move towards the center of the mounting part 101. Each positioning component 200 abuts against the positioning body 11 to push the positioning body 11 to the center of the mounting part 101. The identification unit 400 performs image recognition on the orientation of the positioning body 11 relative to the center, so as to coordinate with the movement of the driving component 320. By adjusting the positioning body 11 to coincide with the center of the mounting part 101, the orientation of the assembly 10 is precisely adjusted, thereby ensuring the processing or assembly accuracy of the product.

[0112] Furthermore, the fixture positioning system provided in this application embodiment may also include a limiting member 20, which is used to restrict the rotation of the assembly 10 for auxiliary positioning. The assembly 10 has at least two positioning bodies 11. When one positioning body 11 is positioned and connected to the positioning device, the other positioning body 11 is engaged and connected to the limiting member 20, thereby preventing the assembly 10 from rotating around the center of the mounting portion 101.

[0113] For example, such as Figure 3 , Figure 4 As shown, the limiting member 20 can be an auxiliary positioning block, auxiliary positioning plate, etc., which is arranged at intervals from the positioning device. The assembly 10 has two positioning bodies 11, one of which at least partially matches the limiting member 20. In this way, when the positioning body 11 and the limiting member 20 are engaged and connected, the assembly 10 is further positioned and adjusted to prevent it from rotating freely.

[0114] In a specific example, such as Figure 4 As shown, the positioning body 11 has a limiting protrusion on the side facing the limiting member 20, and correspondingly, the limiting member 20 has a limiting groove on the side facing the positioning body 11 that matches the limiting protrusion. When the positioning body 11 moves to align with the limiting member 20, the limiting protrusion and the limiting groove cooperate and connect.

[0115] In another specific example, which is not shown in the figure, the side of the positioning body 11 facing the limiting member 20 can also be a limiting groove. Correspondingly, the side of the limiting member 20 facing the positioning body 11 can also be a limiting protrusion that matches the limiting groove. When the positioning body 11 moves to align with the limiting member 20, the limiting protrusion and the limiting groove can also be connected.

[0116] It should be noted that, in order to avoid repeated positioning with the positioning body 11, the limiting groove can be a long slot, and the end of the limiting protrusion facing the limiting groove can be set as a pointed part, so that the limiting protrusion can be smoothly inserted into the long slot, and can be slightly moved in the length extension direction of the long slot for adaptive adjustment.

[0117] Of course, the positioning body 11 and the limiting member 20 can also be replaced by other types of limiting structures. Any limiting structure that can satisfy the limiting between the two without causing repeated positioning with the positioning body 11 is acceptable. It can be determined according to actual needs. In this embodiment, no excessive restrictions are imposed.

[0118] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A positioning device, characterized in that, include: A base assembly (100) having a mounting portion (101). At least two positioning elements (200) are provided, each of which is movably disposed on the base assembly (100); A drive mechanism (300) includes a rotating member (310) and a drive assembly (320). The rotating member (310) and at least a portion of the drive assembly (320) are disposed on the base assembly (100). The rotating member (310) is drivenly connected to each of the positioning members (200), and the drive assembly (320) is drivenly connected to the rotating member (310). Identification unit (400); The drive assembly (320) is configured such that when the positioning body (11) on the assembly (10) is located within a preset area of ​​the mounting portion (101), at least a portion of the drive assembly (320) moves relative to the base assembly (100), thereby causing the rotating member (310) to rotate, thereby driving each positioning member (200) to move toward the center of the mounting portion (101), and each positioning member (200) abuts against the positioning body (11) to push the positioning body (11) to the center of the mounting portion (101); the recognition unit (400) is configured to perform image recognition on at least the orientation of the positioning body (11) relative to the center, in order to coordinate with the movement of the drive assembly (320).

2. The positioning device according to claim 1, characterized in that, The drive assembly (320) includes a movable member (321), which is disposed on the base assembly (100) and is connected in a transmission manner to the rotating member (310); The movable member (321) is configured to move relative to the base assembly (100) along the circumferential tangent direction of the rotating member (310) to drive the rotating member (310) to rotate.

3. The positioning device according to claim 2, characterized in that, The drive assembly (320) further includes a drive member (322), which is connected to the rotating member (310) and is used to drive the moving member (321) to move.

4. The positioning device according to claim 1, characterized in that, The rotating member (310) has at least two first transmission parts (311) on the side facing the positioning member (200), and each positioning member (200) has a second transmission part (230) on the side facing the rotating member (310). Each of the second transmission parts (230) is matched with the corresponding first transmission part (311), and each of the second transmission parts (230) is connected to the corresponding first transmission part (311) in a transmission connection; The second transmission part (230) is configured to slide relative to the first transmission part (311) when the rotating member (310) rotates, so as to drive the corresponding positioning member (200) to slide.

5. The positioning device according to claim 4, characterized in that, The first transmission part (311) is a groove, which is obliquely arranged on a portion of the periphery of the mounting part (101), with one end of the groove close to the mounting part (101) and the other end away from the mounting part (101). The second transmission part (230) is a protrusion that matches the groove, and the protrusion is slidably connected to the groove.

6. The positioning device according to any one of claims 1 to 5, characterized in that, The positioning member (200) has a positioning part (210) on the side facing the mounting part (101), the positioning part (210) being used to match a portion of the peripheral wall of the positioning body (11).

7. The positioning device according to any one of claims 1 to 5, characterized in that, The number of positioning elements (200) is at least three, and each positioning element (200) is evenly distributed around the periphery of the mounting part (101).

8. The positioning device according to any one of claims 1 to 5, characterized in that, The base assembly (100) has a first sliding portion (102) on the side facing the positioning member (200), and the positioning member (200) has a second sliding portion (220) on the side facing the base assembly (100). The sliding directions of the second sliding part (220) and the first sliding part (102) are arranged along the central direction close to or away from the mounting part (101). The second sliding part (220) matches the corresponding first sliding part (102), and the second sliding part (220) is slidably connected to the corresponding first sliding part (102).

9. The positioning device according to claim 8, characterized in that, The base assembly (100) includes a base (110) and a cover (120) connected to the base (110), at least one of the base (110) and the cover (120) having a mounting cavity (111). The rotating component (310) and part of the driving assembly (320) are located in the mounting cavity (111), and the mounting part (101) and the first sliding part (102) are located on the cover (120).

10. A fixture positioning system, characterized in that, The assembly (10) includes an assembly (10) and at least one positioning device as claimed in any one of claims 1 to 9, wherein the assembly (10) has at least one positioning body (11) that is positioned and connected to the corresponding positioning device.

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