An automatic centering device

By using a single driver-driven transmission unit and centering unit, and utilizing gear and rack transmission and guides, the problems of poor synchronization performance and high cost of existing centering devices are solved, achieving stable workpiece centering and cost reduction, making it suitable for large-scale automated production lines.

CN115625649BActive Publication Date: 2026-04-14TIANJIN GUOKE MEDICAL ENG & TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-28
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing centering devices are inadequate in terms of synchronization performance and cost, making them unsuitable for large-scale automated production lines.

Method used

A single driver enables centering of the workpiece in two different directions through a transmission unit and a centering unit. The use of gear and rack transmission and a guide simplifies the structure and reduces costs.

Benefits of technology

It enables stable workpiece alignment, reduces costs, and is easy to integrate and flexibly adapt, making it suitable for large-scale automated production lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an automatic centering device, comprising a driver, a transmission unit connected with the power output end of the driver, a first centering unit fixedly connected with the transmission unit, a second centering unit fixedly connected with the transmission unit, a third centering unit connected with the first centering unit, and a fourth centering unit connected with the second centering unit, wherein the first centering unit and the second centering unit are oppositely arranged, and the third centering unit and the fourth centering unit are oppositely arranged. According to the application, the centering operation of a workpiece in two different directions is realized by a single driver, the result is simple, easy to operate, and good in stability, the cost can be effectively reduced, and the device is convenient to integrate and flexible to adapt while the function is ensured.
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Description

Technical Field

[0001] This application relates to the field of non-standard automation. More specifically, this application relates to an automatic alignment device. Background Technology

[0002] In the field of automation engineering, many rectangular products require precise placement during inspection to ensure the feasibility of subsequent processes. Therefore, equipment is needed to ensure the accurate positioning of the products.

[0003] Currently, the existing centering devices on the market fall into two categories: one uses cylinders to achieve synchronous centering, but the synchronization performance is poor and the mechanism is unstable; the other uses a vision system to identify the product's position, and then uses a robotic arm to adjust the product's position to achieve precise placement. This device has a complex structure and high cost. Neither of these two centering devices is suitable for large-scale automated production lines.

[0004] In view of this, it is necessary to develop an automatic centering device to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the main purpose of this application is to provide an automatic centering device that realizes the centering operation of the workpiece in two different directions through a single driver. The result is simple, easy to operate, and has good stability. It can effectively reduce costs and is easy to integrate. While ensuring functionality, the device can be flexibly adapted.

[0006] To achieve these objectives and other advantages according to this application, an automatic centering device is provided, comprising: a driver;

[0007] A transmission unit that is connected to the power output end of the driver;

[0008] The first centering unit is fixedly connected to the transmission unit;

[0009] The second centering unit is fixedly connected to the transmission unit;

[0010] The third centering unit is drive-connected to the first centering unit; and

[0011] The fourth centering unit is connected to the second centering unit via a transmission connection;

[0012] The first and second centering units are arranged opposite to each other, and the third and fourth centering units are arranged opposite to each other.

[0013] Under the action of the driver, the first centering unit and the second centering unit move closer to each other or further away from each other, and the third centering unit and the fourth centering unit move closer to each other or further away from each other.

[0014] Preferably, it further includes: a substrate, which includes: a first end, a second end, a third end, and a fourth end.

[0015] The first end and the second end are arranged opposite to each other, and the third end and the second end are arranged opposite to each other.

[0016] The first centering unit is movably arranged on the first end, the second centering unit is movably arranged on the second end, the third centering unit is movably arranged on the third end, and the fourth centering unit is movably arranged on the fourth end.

[0017] Preferably, the transmission unit is movably disposed in the central region of the substrate, and the transmission unit includes: a first transmission member, which is connected to the power output end of the driver.

[0018] A second transmission component, which is drively connected to the first transmission component; and

[0019] The third transmission component is connected to the first transmission component in a transmission manner;

[0020] The second transmission component is disposed opposite to the third transmission component, and the first transmission component, the second transmission component, and the third transmission component are connected by a gear and rack transmission.

[0021] Preferably, the first centering unit includes: a first adapter, which is fixedly connected to the second transmission member; and

[0022] The first centering component is fixedly installed above the first adapter component;

[0023] The top region of the first pair of centering components is provided with at least two first pair of centering parts, which are arranged in the same layer array along an array direction.

[0024] Preferably, the second centering unit includes: a second adapter, which is fixedly connected to the third transmission member; and

[0025] The second centering component is fixedly installed above the second adapter component;

[0026] The top region of the second pair of centering members is provided with at least two second pairs of centering parts, which are arranged in the same layer array along an array direction.

[0027] Preferably, the third centering unit includes: a third centering member, which is movably arranged above the substrate;

[0028] The third centering member is provided with a first transmission wall, which is arranged at an axial angle relative to the substrate.

[0029] A first guide is provided on the side of the first adapter near the third centering member, and the first guide is in contact with the first transmission wall.

[0030] Under the action of the driver, the third centering unit and the fourth centering unit are brought closer or further apart by the cooperation of the first guide and the first transmission wall.

[0031] Preferably, the top region of the third pair of centering members is provided with a third pair of centering portions.

[0032] The bottom region of the third centering member is provided with a first clamping part, the top region of the substrate is provided with a second clamping part, and a first elastic element is provided between the first clamping part and the second clamping part.

[0033] Preferably, the fourth centering unit includes a fourth centering member, which is movably arranged on the substrate.

[0034] The inner side of the fourth centering member is provided with a second transmission wall, which is arranged obliquely relative to the circumferential direction of the substrate.

[0035] The second adapter is provided with a second guide at one end near the fourth centering member, and the second guide is in contact with the second transmission wall.

[0036] Under the action of the driver, the third centering unit and the fourth centering unit are brought closer or further apart by the cooperation of the second guide and the second transmission wall.

[0037] Preferably, the top region of the fourth pair of centering members is provided with a fourth pair of centering portions.

[0038] The bottom region of the fourth centering member is provided with a third clamping part, the top region of the substrate is provided with a fourth clamping part, and a second elastic element is provided between the third clamping part and the fourth clamping part.

[0039] One of the above technical solutions has the following advantages or beneficial effects: In this application, the centering operation of the workpiece in two different directions is realized by a single driver. The result is simple, easy to operate, and has good stability. It can effectively reduce costs and is convenient to integrate. While ensuring functionality, the device can be flexibly adapted.

[0040] Other advantages, objectives and features of this application will be partly apparent from the description below, and partly understood by those skilled in the art through study and practice of this application. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application and are not intended to limit this application, wherein:

[0042] Figure 1 This is a top view of an automatic centering device according to one embodiment of this application;

[0043] Figure 2 This is a three-dimensional structural view of the automatic centering device according to one embodiment of this application after the workpiece is hidden;

[0044] Figure 3 An exploded structural view of an automatic centering device according to one embodiment of this application;

[0045] Figure 4 This is a top view of an automatic centering device according to one embodiment of this application;

[0046] Figure 5 This is a cross-sectional view of an automatic centering device according to one embodiment of this application. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0048] In the accompanying drawings, shapes and dimensions may be enlarged for clarity, and the same reference numerals will be used in all figures to indicate the same or similar parts.

[0049] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the element or object preceding “comprising” or “including” encompasses the element or object listed following “comprising” or “including” and its equivalents, but do not exclude other elements or objects. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower are defined relative to the structure shown in the accompanying drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These are relative concepts and may vary depending on their location and usage. Therefore, these or other orientations should not be interpreted as restrictive terms.

[0051] Terms involving attachment, connection, etc. (e.g., “connection” and “attachment”) refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through an intermediate structure, and to the relationship of movable or rigid attachment, unless otherwise explicitly stated.

[0052] According to one embodiment of this application, in conjunction with Figures 1-5 As shown in the diagram, the automatic centering device 100 includes: a driver 110; a transmission unit 160, which is pulsatorically connected to the power output end of the driver 110; a first centering unit 120, which is fixedly connected to the transmission unit 120; a second centering unit 130, which is fixedly connected to the transmission unit 120; a third centering unit 140, which is pulsatorically connected to the first centering unit 130; and a fourth centering unit 150, which is pulsatorically connected to the second centering unit 140.

[0053] The first centering unit 120 and the second centering unit 130 are arranged opposite to each other, and the third centering unit 140 and the fourth centering unit 150 are arranged opposite to each other.

[0054] Under the action of the driver 110, the first centering unit 120 and the second centering unit 130 move closer to each other or further away from each other, and the third centering unit 140 and the fourth centering unit 150 move closer to each other or further away from each other.

[0055] Understandably, the automatic centering device 100 in this application is suitable for automatically centering rectangular workpieces. Specifically, the workpiece is placed between the first centering unit 120, the second centering unit 130, the third centering unit 140, and the fourth centering unit 150. Under the action of the driver 110, the first centering unit 120 and the second centering unit 130 move closer to each other, and the third centering unit 140 and the fourth centering unit 150 move closer to each other, so as to achieve automatic centering of the workpiece.

[0056] After the workpiece is processed, under the action of the driver 110, the first centering unit 120 and the second centering unit 130 move away from each other, and the third centering unit 140 and the fourth centering unit 150 move away from each other, so as to loosen the workpiece and transfer it.

[0057] Furthermore, the automatic alignment device 100 also includes a substrate 170, which includes a first end 171, a second end 172, a third end 173, and a fourth end 174.

[0058] The first end 171 and the second end 172 are arranged opposite to each other, and the third end 173 and the third end 174 are arranged opposite to each other.

[0059] The first centering unit 120 is movably arranged on the first end 171, the second centering unit 130 is movably arranged on the second end 172, the third centering unit 140 is movably arranged on the third end 173, and the fourth centering unit 150 is movably arranged on the fourth end 174.

[0060] Furthermore, the transmission unit 160 is movably disposed in the central region of the substrate 170, and the transmission unit 160 includes: a first transmission member 161, which is connected to the power output end of the driver 110; a second transmission member 162, which is connected to the first transmission member 161; and a third transmission member 163, which is connected to the first transmission member 161.

[0061] The second transmission member 162 is disposed opposite to the third transmission member 163, and the first transmission member 161, the second transmission member 162 and the third transmission member 163 are connected by a gear and rack transmission.

[0062] Furthermore, the first centering unit 120 includes: a first adapter 121, which is fixedly connected to the second transmission member 162; and a first centering member 122, which is fixedly installed above the first adapter 121;

[0063] The top region of the first pair of centering members 122 is provided with at least two first pair of centering parts 1221, which are arranged in the same layer array along an array direction.

[0064] In a preferred embodiment of this application, the circumferential region of the first pair of center portions 1221 is covered with an outer layer made of a flexible material; or the first pair of center portions 1221 is made of a flexible material to prevent the first pair of center portions 1221 from contacting the workpiece 200 and damaging the workpiece, thereby effectively protecting the workpiece 200 and reducing production costs.

[0065] Furthermore, the second centering unit 130 includes: a second adapter 131, which is fixedly connected to the third transmission member 163; and a second centering member 132, which is fixedly installed above the second adapter 132;

[0066] The top region of the second pair of centering members 132 is provided with at least two second pair of centering parts 1321, which are arranged in the same layer array along an array direction.

[0067] In a preferred embodiment of this application, the circumferential region of the second pair of center portions 1321 is covered with an outer layer made of a flexible material; or the second pair of center portions 1321 is made of a flexible material to prevent the second pair of center portions 1321 from contacting the workpiece 200 and damaging the workpiece, thereby effectively protecting the workpiece 200 and reducing production costs.

[0068] Understandably, under the action of the driver 110, the first transmission member 161 drives the second transmission member 162 and the third transmission member 163 to move, so that the second transmission member 162 and the third transmission member 163 are relatively displaced, thereby driving the first centering part 1221 and the second centering part 1321 to move closer to each other, so as to achieve centering of the workpiece.

[0069] Furthermore, the third centering unit 140 includes a third centering member 141, which is movably arranged above the substrate 170;

[0070] The third centering member 141 is provided with a first transmission wall 1411, which is arranged obliquely relative to the axial direction of the base plate 170.

[0071] A first guide 123 is provided on the side of the first adapter 121 near the third centering member 141, and the first guide 123 is in contact with the first transmission wall 1411.

[0072] Under the action of the driver 110, the third centering unit 140 and the fourth centering unit 150 are brought closer or further apart by the cooperation of the first guide 123 and the first transmission wall 1411.

[0073] In a preferred embodiment of this application, the distance between the first transmission wall 1411 and the midline symmetry axis of the substrate 170 gradually increases in the direction from the first end 171 of the substrate 170 to the second end 172 of the substrate 170.

[0074] The included angle between the first transmission wall 1411 and the axial direction of the substrate 170 is defined as α, and the size of the included angle α is 10° to 20°.

[0075] Specifically, in one embodiment of this application, the included angle α is 10°; in another embodiment of this application, the included angle α is 15°; and in yet another embodiment of this application, the included angle α is 20°.

[0076] The specific setting of the included angle α can be selected by the staff according to the actual situation.

[0077] In a preferred embodiment of this application, the included angle α is 15°.

[0078] Understandably, in this application, the included angle α between the first transmission wall 1411 and the axial direction of the substrate 170 is limited to adjust and limit the rate at which the third centering unit 140 and the fourth centering unit 150 approach or move away, thereby facilitating the centering operation.

[0079] Furthermore, the top region of the third pair of centering members 141 is provided with a third pair of centering portions 1413.

[0080] The bottom region of the third centering member 141 is provided with a first clamping part 1412, and the top region of the substrate 170 is provided with a second clamping part 175. A first elastic element 142 is provided between the first clamping part 1412 and the second clamping part 175.

[0081] In a preferred embodiment of this application, the circumferential region of the third pair of center portions 1413 is covered with an outer layer made of a flexible material; or the third pair of center portions 1413 is made of a flexible material to prevent the third pair of center portions 1413 from contacting the workpiece 200 and damaging the workpiece, thereby effectively protecting the workpiece 200 and reducing production costs.

[0082] The first elastic element 142 is any one of a spring, an elastic sheet, or a bouncy ball.

[0083] In one embodiment of this application, the first elastic element 142 is a spring; in another embodiment of this application, the first elastic element 142 is an elastic sheet; in yet another embodiment of this application, the first elastic element 142 is a bouncy ball.

[0084] The specific configuration of the first elastic element 142 can be selected by the staff according to the actual situation.

[0085] Understandably, when the third centering unit 140 and the fourth centering unit 150 approach each other, the first elastic element 142 is stretched to generate a reset elastic force, and the third centering unit 140 can be reset under the action of the reset elastic force.

[0086] Furthermore, the fourth centering unit 150 includes a fourth centering member 151, which is movably arranged on the substrate 170.

[0087] The inner side of the fourth centering member 151 is provided with a second transmission wall 1511, which is arranged circumferentially inclined relative to the base plate 170.

[0088] The second adapter 131 is provided with a second guide 133 at one end near the fourth centering member 151, and the second guide 133 is in contact with the second transmission wall 1511.

[0089] Under the action of the driver 110, the third centering unit 140 and the fourth centering unit 150 are brought closer or further apart by the cooperation of the second guide 133 and the second transmission wall 1511.

[0090] In a preferred embodiment of this application, the distance between the second transmission wall 1511 and the centerline symmetry axis of the substrate 170 gradually decreases in the direction from the first end 171 of the substrate 170 to the second end 172 of the substrate 170.

[0091] The included angle between the second transmission wall 1511 and the axial direction of the substrate 170 is defined as β, and the size of the included angle β is 10° to 20°.

[0092] Specifically, in one embodiment of this application, the included angle β is 10°; in another embodiment of this application, the included angle β is 15°; and in yet another embodiment of this application, the included angle β is 20°.

[0093] The specific setting of the included angle β can be selected by the staff according to the actual situation.

[0094] In a preferred embodiment of this application, the included angle β is 15°.

[0095] Understandably, in this application, the included angle β between the second transmission wall 1511 and the axial direction of the substrate 170 is defined to adjust and limit the rate at which the third centering unit 140 and the fourth centering unit 150 approach or move away, thereby facilitating the centering operation.

[0096] Furthermore, the top region of the fourth pair of centering members 151 is provided with a fourth pair of centering portions 1513.

[0097] The bottom region of the fourth centering member 151 is provided with a third clamping part 1512, the top region of the substrate 170 is provided with a fourth clamping part 176, and a second elastic element 152 is provided between the third clamping part 1512 and the fourth clamping part 176.

[0098] In a preferred embodiment of this application, the circumferential region of the fourth pair of center portions 1513 is covered with an outer layer made of a flexible material; or the fourth pair of center portions 1513 is made of a flexible material to prevent the fourth pair of center portions 1513 from contacting the workpiece 200 and damaging the workpiece, thereby effectively protecting the workpiece 200 and reducing production costs.

[0099] The second elastic element 152 is any one of a spring, an elastic sheet, or a bouncy ball.

[0100] In one embodiment of this application, the second elastic element 152 is a spring; in another embodiment of this application, the second elastic element 152 is an elastic sheet; in yet another embodiment of this application, the second elastic element 152 is a bouncy ball.

[0101] The specific configuration of the second elastic element 152 can be selected by the staff according to the actual situation.

[0102] Understandably, when the third centering unit 140 and the fourth centering unit 150 approach each other, the second elastic element 152 is stretched to generate a reset elastic force, and the fourth centering unit 150 can be reset under the action of the reset elastic force.

[0103] When the driver 110 drives the first transmission member 161 to rotate in the opposite direction, a relative displacement occurs between the second transmission member 162 and the third transmission member 163. This causes a relative displacement between the first guide 123 and the first transmission wall 1411, and simultaneously causes a relative displacement between the second guide 133 and the second transmission wall 1511. This brings the third centering portion 1413 and the fourth centering portion 1513 closer together, achieving workpiece centering.

[0104] When the driver 110 drives the first transmission member 161 to rotate in the forward direction, a relative displacement occurs between the second transmission member 162 and the third transmission member 163, thereby causing a relative displacement between the first guide 123 and the first transmission wall 1411, and simultaneously causing a relative displacement between the second guide 133 and the second transmission wall 1511. The third pair of middle parts 1413 is reset under the action of the first elastic element 142, and the fourth pair of middle parts 1513 is reset under the action of the second elastic element 152.

[0105] The number of devices and processing scale described herein are for the purpose of simplifying the description of this application. Applications, modifications, and variations of this application will be readily apparent to those skilled in the art.

[0106] Although the embodiments of this application have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this application. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this application is not limited to the specific details and examples shown and described herein.

Claims

1. An automatic centering device, characterized in that, include: Driver (110); substrate(170); A transmission unit (160) is connected to the power output end of the driver (110); The first centering unit (120) is fixedly connected to the transmission unit (160); The second centering unit (130) is fixedly connected to the transmission unit (160); The third centering unit (140) is drive-connected to the first centering unit (120); and The fourth centering unit (150) is drive-connected to the second centering unit (130); The first centering unit (120) and the second centering unit (130) are arranged opposite to each other, and the third centering unit (140) and the fourth centering unit (150) are arranged opposite to each other. The transmission unit (160) includes: The first transmission component (161) is connected to the power output end of the driver (110); The second transmission member (162) is connected to the first transmission member (161) in a transmission manner; and The third transmission component (163) is connected to the first transmission component (161) in a transmission connection. The first centering unit (120) includes: a first adapter (121), which is fixedly connected to the second transmission member (162); The second centering unit (130) includes: a second adapter (131), which is fixedly connected to the third transmission member (163); The third centering unit (140) includes: a third centering member (141) which is movably arranged above the substrate (170); a first transmission wall (1411) is provided on the third centering member (141), the first transmission wall (1411) is arranged obliquely relative to the axial direction of the substrate (170), and a first guide (123) is provided on the side of the first adapter (121) near the third centering member (141), the first guide (123) is in contact with the first transmission wall (1411); A fourth centering member (151) is movably arranged on the substrate (170). A second transmission wall (1511) is provided on the inner side of the fourth centering member (151). The second transmission wall (1511) is arranged circumferentially inclined relative to the substrate (170). A second guide (133) is provided at one end of the second adapter (131) near the fourth centering member (151). The second guide (133) is in contact with the second transmission wall (1511). Under the action of the driver (110), the first centering unit (120) and the second centering unit (130) move closer or further apart from each other, and through the cooperation of the first guide (123) with the first transmission wall (1411) and the cooperation of the second guide (133) with the second transmission wall (1511), the third centering unit (140) and the fourth centering unit (150) move closer or further apart from each other.

2. The automatic centering device as described in claim 1, characterized in that, Also includes: The substrate (170) includes: a first end (171), a second end (172), a third end (173) and a fourth end (174). The first end (171) and the second end (172) are arranged opposite to each other, and the third end (173) and the fourth end (174) are arranged opposite to each other. The first centering unit (120) is movably arranged on the first end (171), the second centering unit (130) is movably arranged on the second end (172), the third centering unit (140) is movably arranged on the third end (173), and the fourth centering unit (150) is movably arranged on the fourth end (174).

3. The automatic centering device as described in claim 2, characterized in that, The transmission unit (160) is movably disposed in the central region of the substrate (170). The second transmission member (162) is disposed opposite to the third transmission member (163), and the first transmission member (161), the second transmission member (162) and the third transmission member (163) are connected by a gear and rack transmission.

4. The automatic centering device as described in claim 3, characterized in that, The first centering component (122) is fixedly installed above the first adapter (121); The top region of the first pair of centering members (122) is provided with at least two first pair of centering parts (1221), and the first pair of centering parts (1221) are arranged in the same layer array along an array direction.

5. The automatic centering device as described in claim 3, characterized in that, The second centering component (132) is fixedly installed above the second adapter (131); The top region of the second pair of centering members (132) is provided with at least two second pair of centering parts (1321), and the second pair of centering parts (1321) are arranged in the same layer array along an array direction.

6. The automatic centering device as described in claim 1, characterized in that, The top region of the third centering member (141) is provided with a third centering portion (1413). The bottom region of the third centering member (141) is provided with a first clamping part (1412), the top region of the substrate (170) is provided with a second clamping part (175), and a first elastic element (142) is provided between the first clamping part (1412) and the second clamping part (175).

7. The automatic centering device as described in claim 1, characterized in that, The top region of the fourth centering member (151) is provided with a fourth centering part (1513). The bottom region of the fourth centering member (151) is provided with a third clamping part (1512), the top region of the substrate (170) is provided with a fourth clamping part (176), and a second elastic element (152) is provided between the third clamping part (1512) and the fourth clamping part (176).

Citation Information

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