Positioning device

Abstract

The utility model provides a positioning device. The positioning device comprises a base; the fixing plate is fixedly connected with the base; the force bearing plate is arranged to be close to or far away from the fixing plate, and the force bearing plate is provided with a first position close to the fixing plate, a second position far away from the fixing plate and a third position located between the first position and the second position; the driving device is arranged on the fixing plate and used for driving the force bearing plate to move between a first position and a second position; and when the force bearing plate is located at the third position, the force bearing block is located between the fixing plate and the force bearing plate, and at least part of the external force borne by the force bearing plate is transmitted to the fixing plate.

Description

Technical Field

[0001] The present disclosure relates to a positioning device and belongs to the technical field of automation equipment. Background Art

[0002] In the assembly of complex and irregular mechanisms, due to the large number of irregular product mechanisms, large bases, and large weight bases, handling and positioning are relatively difficult. Especially for products with irregular mechanisms, the complexity of their parts is more serious, the manual assembly intensity increases, and the cost is relatively high.

[0003] There are many existing positioning mechanisms. However, when applied to the assembly line of irregular mechanisms, their load-bearing capacity is insufficient, the allowable variables do not meet the requirements, and it is difficult to guarantee the quality of the products produced. At the same time, it also severely restricts the production output of enterprises. Summary of the Utility Model

[0004] In order to solve one of the above technical problems, the present disclosure provides a positioning device.

[0005] According to one aspect of the present disclosure, there is provided a positioning device, which includes:

[0006] A base;

[0007] A fixing plate, the fixing plate is fixedly connected to the base;

[0008] A load-bearing plate, the load-bearing plate is configured to be able to approach or move away from the fixing plate, wherein the load-bearing plate has a first position approaching the fixing plate, a second position away from the fixing plate, and a third position between the first position and the second position;

[0009] A driving device, the driving device is disposed on the fixing plate and is used for driving the load-bearing plate to move between the first position and the second position; and

[0010] A load-bearing block, when the load-bearing plate is in the third position, the load-bearing block is located between the fixing plate and the load-bearing plate and transmits at least part of the external force borne by the load-bearing plate to the fixing plate.

[0011] For the positioning device according to at least one embodiment of the present disclosure, a guiding hole is provided on the fixing plate, and a guiding column is slidably disposed in the guiding hole, and the load-bearing plate is fixed to the upper end of the guiding column.

[0012] For the positioning device according to at least one embodiment of the present disclosure, a limiting plate is provided at the lower end of the guiding column, wherein the limiting plate is located below the fixing plate, and the load-bearing plate is located above the fixing plate.

[0013] A positioning device according to at least one embodiment of the present disclosure, wherein a through hole is formed in the fixing plate, and the load-bearing block is configured to be able to pass through the through hole. When the load-bearing plate is in the first position, at least a part of the load-bearing block is located within the through hole, and the lower end of the load-bearing block is located below the fixing plate.

[0014] The positioning device according to at least one embodiment of the present disclosure further includes:

[0015] A driving assembly, which is disposed on the limiting plate and is configured to drive the load-bearing block to rotate by a preset angle.

[0016] When the load-bearing plate is in a position between the second position and the third position, the driving assembly of the positioning device according to at least one embodiment of the present disclosure drives the load-bearing block to rotate by a preset angle, and at least a part of the projection of the load-bearing block on the fixing plate is located outside the through hole of the fixing plate.

[0017] The positioning device according to at least one embodiment of the present disclosure, wherein a limiting device is provided on the fixing plate, and the limiting device is configured to limit the rotation angle of the load-bearing block.

[0018] The driving device of the positioning device according to at least one embodiment of the present disclosure includes a cylinder, the cylinder is connected to a pipeline through which gas passes, and a mid-way exhaust valve is provided on the pipeline.

[0019] The positioning device according to at least one embodiment of the present disclosure further includes a detection device, and the detection device is configured to obtain an in-position signal of a workpiece above the load-bearing plate.

[0020] On the load-bearing plate of the positioning device according to at least one embodiment of the present disclosure, a steel ball roller set and / or a floating positioning post are / is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, are used to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are included in this specification and form a part of this specification.

[0022] Figure 1 It is a schematic structural diagram of a positioning device according to an embodiment of the present disclosure.

[0023] Figure 2 It is a schematic structural diagram of the positioning device according to an embodiment of the present disclosure from another angle.

[0024] Figures 3 to 5 It is a schematic structural diagram of the positioning device according to an embodiment of the present disclosure from different angles.

[0025] The specific reference numerals in the figure are as follows:

[0026] 101 Guide post

[0027] 102 Ball roller set

[0028] 103 Floating positioning post

[0029] 100 Substrate

[0030] 200 Fixed plate

[0031] 300 Load-bearing plate

[0032] 400 Driving device

[0033] 500 Load-bearing block

[0034] 600 Limiting plate

[0035] 700 Driving assembly

[0036] 800 Limiting device

[0037] 900 Buffer limiting device. Detailed implementation manners

[0038] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and implementation manners. It can be understood that the specific implementation manners described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the convenience of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0039] It should be noted that, without conflict, the implementation manners and features in the implementation manners of the present disclosure can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and implementation manners.

[0040] Unless otherwise specified, the exemplary implementation manners / embodiments shown will be understood to provide exemplary features of various details of some ways that can implement the technical concept of the present disclosure in practice. Therefore, unless otherwise specified, without departing from the technical concept of the present disclosure, the features of various implementation manners / embodiments can be additionally combined, separated, interchanged, and / or rearranged.

[0041] In the drawings, the use of cross-hatching and / or shading is generally used to make the boundaries between adjacent components clear. Thus, unless otherwise stated, the presence or absence of cross-hatching or shading does not convey or imply any preference or requirement for the specific material, material properties, dimensions, proportions, commonality between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the drawings, for clarity and / or descriptive purposes, the dimensions and relative dimensions of components may be exaggerated. When the exemplary embodiments can be implemented differently, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in an order opposite to that described. In addition, the same reference numerals denote the same components.

[0042] When a component is referred to as being "on" or "above" another component, "connected to" or "coupled to" another component, the component can be directly on the other component, directly connected to or directly coupled to the other component, or there may be intervening components. However, when a component is referred to as being "directly on" another component, "directly connected to" or "directly coupled to" another component, there are no intervening components. For this reason, the term "connected" can refer to physical connection, electrical connection, etc., and with or without intervening components.

[0043] For descriptive purposes, the present disclosure may use spatial relative terms such as "under", "below", "beneath", "lower", "above", "upper", "on", "over", "higher", and "side (e.g., as in "sidewall")" to describe the relationship of one component to another (other) component as shown in the drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as "under" or "beneath" another component or feature will then be positioned "above" the other component or feature. Thus, the exemplary term "under" can encompass both "above" and "below" orientations. In addition, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), and accordingly, the spatial relative descriptors used herein are to be interpreted.

[0044] The terms used herein are for the purpose of describing particular embodiments and are not intended to be limiting. As used herein, unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" are also intended to include the plural forms. Further, when the terms "comprises" and / or "comprising" and variations thereof are used in this specification, it is stated that the stated features, integers, steps, operations, elements, components, and / or groups thereof are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should also be noted that, as used herein, the terms "substantially", "about", and other similar terms are used as approximate terms and not as terms of degree, so they are used to explain the inherent deviations of measured, calculated, and / or provided values that would be recognized by a person of ordinary skill in the art.

[0045] Figure 1 is a schematic structural view of a positioning device according to an embodiment of the present disclosure. Figure 2 is a schematic structural view of the positioning device from another angle according to an embodiment of the present disclosure.

[0046] As Figure 1 and Figure 2 shown, the present disclosure provides a positioning device, particularly a floating positioning device, which may include structures such as a base 100, a fixing plate 200, a load-bearing plate 300, a driving device 400, and a load-bearing block 500.

[0047] The base 100 is formed as a frame structure and is configured to be suitably fixed to other devices.

[0048] The fixing plate 200 is fixedly connected to the base 100, and the gravity of the workpiece to be positioned is borne through the fixing plate 200.

[0049] In one embodiment, guide holes are provided on the fixing plate 200, and guide posts 101 are slidably disposed in the guide holes. Preferably, the fixing plate 200 may be formed in a substantially rectangular shape, and the number of the guide holes is four, and the four guide holes respectively correspond to the four corner positions of the fixing plate 200.

[0050] Components such as linear axes or bushings may be provided in the guide holes, whereby the guide posts 101 can slide more smoothly in the guide holes.

[0051] The load-bearing plate 300 is arranged to be able to approach or move away from the fixed plate 200. Thus, the load-bearing plate 300 has a first position, a second position, and a third position. Among them, the first position is the position close to the fixed plate 200; the second position is the position far from the fixed plate 200, and the third position is the position between the first position and the second position.

[0052] Specifically, the load-bearing plate 300 is fixed to the upper end of the guiding column 101, so that the load-bearing plate 300 can reciprocate between the first position and the second position in the vertical direction.

[0053] The driving device 400 is arranged on the fixed plate 200 and is used to drive the load-bearing plate 300 to move between the first position and the second position; in the present disclosure, the driving device 400 can be a cylinder. In a specific embodiment, the cylinder block of the cylinder can be fixed to the fixed plate 200, and the piston rod of the cylinder is fixed to the lower surface of the load-bearing plate 300. Thus, the cylinder can drive the load-bearing plate 300 to perform a lifting action.

[0054] In a preferred embodiment, the cylinder is connected with a pipeline for gas to pass through, and a mid-relief valve is arranged on the pipeline. Thus, when the driving device 400 is subjected to the gravity of the workpiece, the mid-relief valve can be in an open state. Correspondingly, the position of the load-bearing plate 300 can drop, achieving the effect of floating support for the workpiece. In other words, when the load-bearing plate 300 is under the action of the gravity of the workpiece, it will exert pressure on the driving device 400. At this time, the driving device 400 will release some gas and make the load-bearing plate 300 drop in position.

[0055] When the load-bearing plate 300 is located at the third position, the load-bearing block 500 is located between the fixed plate 200 and the load-bearing plate 300, and transfers at least part of the external force borne by the load-bearing plate 300 to the fixed plate 200.

[0056] That is to say, in the present disclosure, the load-bearing block 400 can bear the gravity of the workpiece and can also ensure the unity of the positioning height of the workpiece.

[0057] Thus, when the positioning device of the present disclosure is working, the driving device 400 can move the load-bearing plate 300 to the second position, and the workpiece can be received at this position. After the workpiece is placed behind the driving device 400, due to the buffering effect of the driving device 400, the load-bearing plate 300 will move downward to the third position. At this third position, the load-bearing block 400 supports the load-bearing plate 300, thereby realizing the floating positioning of the workpiece.

[0058] In the present disclosure, a limiting plate 600 is provided at the lower end of the guiding column 101. Among them, the limiting plate 600 is located below the fixing plate 200, and the load-bearing plate 300 is located above the fixing plate 200.

[0059] A through hole is formed in the fixing plate 200, and the load-bearing block 500 is arranged to be able to pass through the through hole. Among them, when the load-bearing plate 300 is in the first position, at least a part of the load-bearing block 500 is located in the through hole, and the lower end of the load-bearing block 500 is located below the fixing plate 200.

[0060] In other words, the limiting plate 600 is arranged to move together with the load-bearing plate 300. In one embodiment, the load-bearing block 500 can be arranged on the limiting plate 600. At this time, the upper end surface of the load-bearing block 500 can be in contact with the lower surface of the load-bearing plate 300, and the lower surface of the load-bearing plate 300 will not affect the rotation of the load-bearing block 500; moreover, the lower end of the load-bearing block 500 is rotatably arranged on the limiting plate 600 through a rotating shaft portion.

[0061] The positioning device may further include a driving assembly 700. The driving assembly 700 is arranged on the limiting plate 600 and is used to drive the load-bearing block 500 to rotate a preset angle.

[0062] Specifically, a rotating shaft portion is provided at the lower end of the load-bearing plate 300. The rotating shaft portion is rotatably arranged on the limiting plate 600, and the rotation axis of the rotating shaft portion is in a vertical state or approximately in a vertical state. That is to say, the rotation axis of the rotating shaft portion is the same as the moving direction of the guiding column 101.

[0063] At the same time, a gear can be arranged on the rotating shaft portion. Preferably, the gear has the same rotation axis as the rotating shaft portion. The gear meshes with the rack, and at this time, the teeth of the rack will be arranged vertically.

[0064] In some embodiments, a guide rail is arranged on the limiting plate 600, and a slider is arranged on the guide rail. The rack is fixed to the slider, so that the rack has a high horizontal movement accuracy.

[0065] At the same time, the rack can be connected to a cylinder, so as to push the rack to move reciprocally through the cylinder, thereby realizing the reciprocating rotation of the load-bearing block 500.

[0066] When the load-bearing plate 300 is located above the third position, that is, when the load-bearing plate 300 is located between the second position and the third position (including the second position and the third position), the load-bearing block 500 can pass through the through-hole and be located above the fixing plate 200. At this time, the rotating shaft portion can be located within the through-hole. Accordingly, at this time, the load-bearing block 500 can be driven to rotate without being blocked by the side wall of the through-hole.

[0067] Specifically, when the load-bearing plate 300 is located at the third position, the lower end surface of the load-bearing block 500 is flush with the upper surface of the fixing plate 200, and the fixing plate 200 does not affect the rotation of the load-bearing block 500.

[0068] Accordingly, when the load-bearing plate 300 is located between the second position and the third position, a preset interval can be provided between the lower end surface of the load-bearing block 500 and the upper surface of the fixing plate 200, and this preset interval is the floating amount of the positioning device of the present disclosure.

[0069] The driving assembly 700 drives the load-bearing block 500 to rotate a preset angle, and makes at least a part of the projection of the load-bearing block 500 on the fixing plate 200 located outside the through-hole of the fixing plate 200. Thus, when the load-bearing plate 300 is located at the third position, the upper end of the load-bearing block 500 contacts the lower surface of the load-bearing plate 300, and the lower end of the load-bearing block 500 contacts the upper surface of the fixing plate 200.

[0070] More preferably, the through-hole is formed as a rectangular hole, the length direction of the rectangular hole corresponds to the length direction of the load-bearing block 500, and the width direction of the rectangular hole corresponds to the thickness direction of the load-bearing block 500. Specifically, the dimension of the load-bearing block 500 in the length direction is slightly smaller than the dimension of the through-hole in the length direction, and the dimension of the load-bearing block 500 in the length direction is greater than its thickness. In a preferred embodiment, the dimension of the load-bearing block 500 in the length direction is 4-5 times its thickness, so that when the load-bearing block 500 is driven to rotate a preset angle, the load-bearing block 500 can stably transmit force.

[0071] In a preferred embodiment, a limiting device 800 is provided on the fixing plate 200, and the limiting device 800 is used to limit the rotation angle of the load-bearing block 500. Specifically, the limiting device 800 can be set to two. One limiting device is arranged near the through hole. After the load-bearing block 500 is limited by this limiting device 800, the load-bearing block 500 can pass through the through hole. The other limiting device 800 is used for the rotational limit of the load-bearing block 500. For example, after the load-bearing block 500 is driven to rotate approximately 90°, it will be limited by this limiting device 800, and the length direction of the load-bearing block 500 will be substantially perpendicular to the length direction of the through hole.

[0072] In the present disclosure, the positioning device further includes a detection device, and the detection device is used to obtain the in-position signal of the workpiece on the load-bearing plate 300. Specifically, the detection device can be a photoelectric sensor or a distance sensor, etc. When there is a workpiece above the load-bearing plate 300 (the workpiece is not placed on the load-bearing plate 300), the detection device is triggered, so as to obtain the in-position signal of the workpiece.

[0073] In addition, a steel ball roller group 102 and / or a floating positioning post 103 are provided on the load-bearing plate 300. When the upstream mechanism discloses the product, the product will fall onto the steel ball roller group 102 and can slide on the steel ball roller group 102. When the product is moved to a preset position, the floating positioning post 103 is inserted into the positioning hole reserved on the product, and the positioning of the product can be achieved.

[0074] The positioning device of the present disclosure, through the floating positioning method, meets the accuracy requirements during the positioning of the special-shaped module. At the same time, it can allow relative errors and will not be over-positioned, ensuring the smooth operation of the mechanism.

[0075] When the positioning device of the present disclosure is in use, the handling mechanism transports the product (such as the parts of the special-shaped mechanism) to a designated position. The detection device gives the in-position signal of the product, and the driving device acts to raise the load-bearing plate 300. Then the driving assembly 700 acts to rotate the load-bearing block 500 by 90°, and the rotation angle of the load-bearing block 500 is limited by the limiting device 800.

[0076] Then, the upstream mechanism releases the product, and the product falls onto the steel ball roller group. The floating positioning post is inserted into the reserved position of the product; the driving device (cylinder) is controlled by a mid-leakage valve, and the gravity of the product can be transferred to the load-bearing block to ensure the height uniformity.

[0077] After the automatic assembly operation of the product is completed, the upstream mechanism lifts the product, actuates the drive assembly 700, and drives the load-bearing block to rotate reversely by 90 degrees (return to the illustrated position); when the driving device retracts, components such as the load-bearing plate descend to the initial position, and the upstream mechanism transports the product away, waits for the next product to reach the designated position, and continues to repeat the above operations.

[0078] In addition, when the positioning device of the present disclosure is in use, the positions of the load-bearing plate and the limiting plate can be limited by the buffer limiting device 900. Specifically, when the limiting plate 600 moves upward, it can cooperate with the buffer limiting device provided on the fixed plate 200, so that the limiting plate 600 cannot move further upward. On the other hand, when the load-bearing plate 300 moves downward, the load-bearing plate 300 can cooperate with the buffer limiting device provided on the fixed plate 200, so that the load-bearing plate 300 cannot move further downward, thereby controlling the positions of the load-bearing plate 300 of the present disclosure in the upward and downward directions within a certain range.

[0079] In the description of this specification, the description with reference to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0080] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0081] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A positioning device, characterized in that: include: Pedestal; A fixing plate, the fixing plate is fixedly connected to the base; A load-bearing plate, wherein the load-bearing plate is arranged to be able to approach or be away from the fixed plate, wherein the load-bearing plate has a first position close to the fixed plate, a second position away from the fixed plate, and a third position between the first position and the second position; A driving device, the driving device is disposed on the fixing plate and is used to drive the bearing plate to move between a first position and a second position; and The load-bearing block is located between the fixed plate and the load-bearing plate when the load-bearing plate is located at the third position, and transmits at least part of the external force borne by the load-bearing plate to the fixed plate.

2. The positioning device according to claim 1, characterized in that: The fixing plate is provided with a guide hole, a guide column is slidably provided in the guide hole, and the load-bearing plate is fixed to the upper end of the guide column.

3. The positioning device according to claim 2, characterized in that: A limiting plate is disposed at the lower end of the guide column, wherein the limiting plate is located below the fixing plate, and the bearing plate is located above the fixing plate.

4. The positioning device according to claim 3, characterized in that: The fixing plate is provided with a through hole, and the load-bearing block is configured to be able to pass through the through hole, wherein when the load-bearing plate is located at the first position, at least a portion of the load-bearing block is located in the through hole, and the lower end of the load-bearing block is located below the fixing plate.

5. The positioning device according to claim 4, characterized in that: Also includes: A driving assembly is arranged on the limiting plate and is used to drive the load-bearing block to rotate a preset angle.

6. The positioning device according to claim 5, characterized in that: When the load-bearing plate is located between the second position and the third position, the driving assembly drives the load-bearing block to rotate a preset angle, and makes the projection of at least part of the load-bearing block on the fixing plate be located outside the through hole of the fixing plate.

7. The positioning device according to claim 1, characterized in that: A limiting device is arranged on the fixing plate, and the limiting device is used to limit the rotation angle of the bearing block.

8. The positioning device according to claim 1, characterized in that: The driving device comprises a cylinder, the cylinder is connected to a pipeline for gas to pass through, and a drain valve is arranged on the pipeline.

9. The positioning device according to claim 1, characterized in that: It also includes a detection device, which is used to obtain an in-position signal of the workpiece above the bearing plate.

10. The positioning device according to claim 1, characterized in that: The load-bearing plate is provided with a steel ball roller group and / or a floating positioning column.

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