A flexible limiting U-shaped positioner

CN224701473UActive Publication Date: 2026-09-01SHANGHAI DONGHU MASCH FACTORY
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Patent Information

Application Number
CN202521018870.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-09-01
Estimated Expiration
2035-05-22

AI Technical Summary

Technical Problem

在变位机的使用时,通常使用桁车或叉车将工件放置在变位机夹具上,放置位置普遍存在偏差,无法达到精准定位,可能存在工件与变位机碰撞、刮擦等,增加工件损坏的风险,尤其在高精度操作中更为显著

Benefits of technology

[0010]作为优选的技术方案,所述承载部件为托盘,用于承载工件。总体而言,通过本实用新型所构思的以上技术方案与现有技术相比,具有的有益效果包括:

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a flexible limiting U-shaped positioner, including a first support base, a second support base, and a support base, which together form a U-shaped support structure. The bearing component has a symmetrical U-shaped structure and is used to bear the workpiece. The limiting components are arranged on both sides of the support base, including a support plate, a tightening screw, a pressure cap, and screws, to achieve flexible limiting of the bearing component. The drive motor in the first support base is connected to a rotary transmission component through a gear pair. The driven component of the second support base rotates synchronously with the rotary transmission component, driving the bearing component to complete the workpiece flipping or processing. The size of the through hole along the edge of the bearing component allows for horizontal positional deviation, and the screws cooperate with the pressure cap to achieve vertical clamping and limiting. This utility model can flexibly limit and fix the workpiece when there is a relative positional deviation between the workpiece and the positioner, ensuring that the workpiece maintains the correct posture during flipping or welding.
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Description

Technical Field

[0001] This utility model belongs to the technical field of heavy equipment flipping and positioning machines, specifically a flexible limiting U-shaped positioner. Background Technology

[0002] A U-shaped positioner is a high-precision mechanical device widely used in welding, assembly, and other processes. It enables the positioning and orientation changes of workpieces in space. A U-shaped positioner typically consists of a servo motor, gears, guide rails, and fixtures. The motor drives the rotating parts, and a precise control system allows for arbitrary angle flipping and position adjustment of the workpiece. When using a positioner, a gantry crane or forklift is usually used to place the workpiece on the positioner's fixtures. However, placement deviations are common, making precise positioning impossible. This can lead to collisions and scratches between the workpiece and the positioner, increasing the risk of workpiece damage, especially in high-precision operations. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a flexible limiting U-shaped positioner, which flexibly limits the workpiece when there is a relative positional deviation between the workpiece and the positioner, improves the compatibility of the positioner with the workpiece, prevents the workpiece from sliding during welding or flipping, and improves the safety of the positioner.

[0004] To solve the above problems, the technical solution adopted by this utility model of a flexible limiting U-shaped positioner is as follows: It includes a first support base, a second support base, and a support base; The first support base and the second support base are installed opposite each other at both ends of the support base, forming a U-shaped support structure with the support base; A load-bearing component is disposed between the first support base and the second support base for supporting the workpiece; Limiting components are respectively installed on both sides of the first support and the second support, and are used to flexibly limit and fix the load-bearing components.

[0005] As a preferred technical solution, the limiting component includes: a support plate, a plurality of tightening screws, a pressure cap, and screws; The support plate has several threaded holes; The tightening screws are fixed to both ends of the upper surface of the support plate to restrict the horizontal movement of the load-bearing components; The screws pass sequentially through the pressure cap, the edge through hole of the bearing component, and the threaded hole of the support plate, and are fixed by threaded connection to restrict the vertical movement of the bearing component.

[0006] As a preferred technical solution, the first support base includes a support column, a drive motor, a rotary transmission component, and a control button; The drive motor is installed inside the support column and is fixed to one side of the support column by bolts; The rotary transmission component is a standard rotary support bearing component, which is installed on the inner side of the support column and connected to the drive motor through gears to drive the limiting component and the load-bearing component to rotate synchronously.

[0007] As a preferred technical solution, the second support includes a tail end column, and a driven member is provided on the inner side of the tail end column. The driven member is driven by a rotary transmission member, and the two rotate synchronously, jointly driving the bearing component to control the flipping of the workpiece.

[0008] As a preferred technical solution, each side of the bearing component is provided with a plurality of through holes evenly distributed along its edge, the size of which is smaller than the outer diameter of the pressure cap.

[0009] As a preferred technical solution, the length of the screw is greater than the sum of the thickness of the gland, the edge thickness of the bearing component, and the thickness of the support plate, and the gland and the support plate form a clamping and limiting effect on the bearing component.

[0010] As a preferred technical solution, the supporting component is a tray used to support the workpiece. Overall, compared with the prior art, the above technical solution conceived by this utility model has the following beneficial effects: This utility model forms a U-shaped support structure with the first and second support seats and the support base. Combined with symmetrical U-shaped bearing components and limiting assemblies on both sides, it achieves flexible limiting and efficient processing of the workpiece. The limiting assembly includes a tightening screw that restricts horizontal movement, and a screw and pressure cap that restrict vertical movement through a clamping structure. The bearing component's edge through-hole allows for a reasonable horizontal deviation of the workpiece, balancing limiting stability and installation adaptability. The drive motor inside the first support seat drives a rotary transmission component via a gear pair, rotating synchronously with the driven component of the second support seat, ensuring smooth rotation of the bearing component. This allows for flexible limiting and fixing of the workpiece when there is a relative positional deviation between the workpiece and the positioner, ensuring the workpiece maintains the correct posture during rotation or welding. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a flexible limiting U-shaped positioner in operation according to this utility model.

[0012] Figure 2 This is a front view cross-sectional schematic diagram of the overall structure of a flexible limiting U-shaped positioner according to this utility model.

[0013] The meanings of the markings in the attached diagram are as follows: 1. First support base; 101. Support column; 102. Drive motor; 103. Rotary transmission component; 104. Control button; 2. Second support base; 201. Tail end column; 202. Driven component; 3. Support base; 4. Bearing component; 5. Limiting assembly; 501. Tightening screw; 502. Pressure cap; 503. Screw; 504. Support plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0016] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0017] In the embodiments, such as Figure 1 and Figure 2As shown, the flexible U-shaped positioner of this embodiment consists of a first support base 1, a second support base 2, a support base 3, a load-bearing component 4, and a limiting component 5. Specifically: the first support base 1 is trapezoidal in shape and is located at one end of the upper surface of the support base 3. It is fixed to the support base 3 by screws and mainly consists of a support column 101, a drive motor 102, a rotary transmission component 103, and a control button 104. The support column 101 is the outer main structure of the first support base 1, providing support for the other components of the first support base 1; the drive motor 102 is located inside the support column 101 and is the power source of this invention; the rotary transmission component 103 is located on the outside of the support column 101 and is connected to the drive motor 102 via gears and fixed to the limiting component 5 by welding, transmitting the torque of the drive motor 102 to the limiting component 5; the control button 104 is located on the outer side of the inclined surface of the support column 101 and controls the start, stop, and emergency stop of the positioner. The second support base 2 is generally rectangular and is located at the other end of the upper surface of the support base 3. It is connected and fixed to the support base 3 by screws and consists of a tail end column 201 and a driven member 202. The tail end column 201 is the outer main structure of the second support base 2 and provides support for the driven member 202. The driven member 202 is located outside the tail end column 201 and is fixed to the limiting component 5 by welding. It rotates synchronously with the rotary transmission component 102. The bearing component 4 is generally U-shaped, with three through holes designed on each of the two support surfaces. The diameter of the holes is the flexible limiting range of the positioner in the horizontal direction. Its main function is to install the workpiece to be flipped or welded. The limiting component 5 mainly consists of two tightening screws 501, three pressure caps 502, three screws 503, and a support plate 504. There are two sets of limiting components 5 in this positioner, which are fixed to the rotary transmission component 102 and the driven member 202 by welding, respectively, to provide support and flexible limiting fixation for the bearing component 4. The support plate 504 is a flat rectangular parallelepiped with three evenly distributed threaded holes at its center. These holes are located at the bottom of the limiting assembly 5 and serve as the main load-bearing component of the bearing member 4. Two tightening screws 501 are respectively located at both ends of the upper surface of the support plate 504 and welded to it. After the bearing member 4 is placed on the support plate 504, the tightening screws 501 limit and fix the bearing member 4 horizontally. The pressure cap 502 is a flat annular shape, with its inner circle engaging with screws 503. After the tightening screws 501 are applied, it is placed on the upper surface of the circular hole in the bearing member 4 and fixed to the support plate 504 by screws 503, thus limiting and fixing the bearing member 4 vertically.

[0018] The specific working process of this utility model: Place the workpiece on the bearing component 4 and adjust its position so that the through hole of the bearing component 4 aligns with the threaded hole of the support plate 504. Screw in the screw 503 to clamp the bearing component onto the support plate 504 through the pressure cap 502, achieving vertical positioning. Rotate the tightening screw 501 to press the rubber pad at the end of the screw against the side plate of the bearing component 4, adjusting it to a stable state without wobbling, restricting horizontal movement while allowing the bearing component 4 to move slightly within the diameter of the through hole to accommodate workpiece installation deviations. Activate the control button 104, and the drive motor 102 drives the rotary transmission component 103 to rotate via gears, synchronously driving the driven component 202, causing the bearing component 4 to rotate smoothly around the horizontal axis. During processing, the U-shaped support structure provides symmetrical support, reducing vibration; the flexible design of the limiting component avoids rigid contact stress, ensuring workpiece positioning accuracy.

[0019] In summary, this utility model forms a U-shaped support structure with the first and second support seats and the support base, and, in conjunction with symmetrical U-shaped bearing components and limiting components on both sides, achieves flexible limiting and efficient processing of the workpiece: the tightening screw in the limiting component restricts horizontal movement, the screw and the pressure cap restrict vertical movement through the clamping structure, and the bearing component allows for a reasonable deviation in the horizontal direction of the workpiece through the edge through hole, taking into account both limiting stability and installation adaptability; the drive motor in the first support seat drives the rotary transmission component through a gear pair, which rotates synchronously with the driven component of the second support seat, ensuring that the bearing component flips smoothly; it can flexibly limit and fix the workpiece when there is a relative positional deviation between the workpiece and the positioner, ensuring that the workpiece maintains the correct posture during flipping or welding.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible limit U-type positioner, characterized in that: It includes a first support base (1), a second support base (2), and a support base (3); The first support base (1) and the second support base (2) are installed opposite to each other at both ends of the support base (3), forming a U-shaped support structure with the support base (3); The supporting component (4) is disposed between the first support base (1) and the second support base (2) for supporting the workpiece; Limiting components (5) are respectively set on both sides of the first support (1) and the second support (2) for flexibly limiting and fixing the bearing component (4).

2. The flexible U-shaped positioner of claim 1, wherein: The limiting component (5) includes: a support plate (504), a plurality of tightening screws (501), a pressure cap (502), and screws (503); The support plate (504) has several threaded holes; The tightening screw (501) is fixed at both ends on the upper surface of the support plate (504) to restrict the horizontal movement of the bearing component (4); The screw (503) passes through the pressure cap (502), the edge through hole of the bearing component (4), and the threaded hole of the support plate (504) in sequence, and is fixed by threaded connection to restrict the vertical movement of the bearing component (4).

3. The flexible U-shaped positioner of claim 1, wherein: The first support base (1) includes a support column (101), a drive motor (102), a rotary transmission component (103), and a control button (104). The drive motor (102) is located inside the support column (101) and is fixed to one side of the support column (101) by bolts; the rotary transmission component (103) is located inside the support column (101) and is connected to the drive motor (102) by gears, and is used to drive the limiting component (5) and the bearing component (4) to rotate synchronously.

4. The flexible U-shaped positioner of claim 1, wherein: The second support base (2) includes a tail end column (201), and a follower (202) is provided on the inner side of the tail end column (201). The follower (202) is driven by the rotary transmission component (103), and the two rotate synchronously, jointly driving the bearing component (4) to control the flipping of the workpiece.

5. The flexible U-shaped positioner of claim 1, wherein: The bearing component (4) has several through holes evenly opened along each side, and the size of the through holes is smaller than the outer diameter of the pressure cap (502).

6. The flexible U-shaped positioner of claim 2, wherein: The length of the screw (503) is greater than the sum of the thickness of the cover (502), the edge thickness of the bearing component (4), and the thickness of the support plate (504). The cover (502) and the support plate (504) form a clamping limit on the bearing component (4).

7. The flexible U-shaped positioner of claim 1, wherein: The supporting component (4) is a tray used to support the workpiece.