General quick product loading and unloading mechanism of pipe product winding machine

CN224917241UActive Publication Date: 2026-10-30DONGGUAN YAOLONG AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202522637342.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-10-30
Estimated Expiration
2035-12-12

AI Technical Summary

Technical Problem

[0003]然而,铜管及铜铝复合管的材质特性和加工场景对夹持夹具提出了严苛要求:现有夹持方式中,传统的外夹式夹具容易导致管材外壁产生夹痕、变形,尤其在薄壁铜管加工中,夹伤问题会直接影响管材的密封性能和使用寿命;而部分内撑式夹具则存在涨紧力不均、定位精度低的缺陷,在高速缠绕过程中,管材易出现轴向窜动或周向打滑,导致缠绕层厚度不均、排线紊乱,严重影响产品质量稳定性

Benefits of technology

[0009]本实用新型的有益效果:本实用新型通过内撑式涨紧结构与驱动气缸的协同设计,实现了铜管及铜铝复合管缠绕加工的高效稳定夹持,其核心效果显著:涨紧套经内撑套驱动后均匀向外撑开,与工件内壁全面贴合,既避免了传统外夹式夹具造成的表面划伤、变形问题,又解决了普通内撑夹具涨紧力不均导致的轴向窜动、周向打滑现象,大幅提升了工件定位精度和缠绕层加工质量;

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Abstract

The utility model discloses a general quick product mechanism of winding machine of pipe product, include: the material carrier pedestal is provided with on this material carrier pedestal: the material carrier sleeve, the installation on the material carrier sleeve and be used for realizing the drive cylinder of tight clamp control, tight clamp includes: fixed base, tight sleeve, inner support cover and pull block, fixed base is encased in the one end position of material carrier sleeve, and the fixed base is formed with the encased section that extends outward, tight sleeve, inner support cover and pull block are installed in sequence on this encased section, have realized copper pipe and copper aluminium composite pipe winding processing's high -efficient stable clamping, and its core effect is remarkable: tight sleeve is driven after inner support cover and opens outwards evenly, and the workpiece inner wall is overall attached, avoids the surface scratch, the deformation problem caused by traditional outer clamping type clamp, and also has solved the axial displacement, the circumferential skidding phenomenon of the ordinary inner support clamp tight force uneven, has promoted workpiece positioning accuracy and winding layer processing quality greatly.
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Description

Technical Field

[0001] This utility model belongs to the field of winding equipment technology, and relates to a universal quick loading and unloading mechanism for a winding machine for tubular products. Background Technology

[0002] In fields such as air conditioning and refrigeration, HVAC heat exchange, and automotive piping, copper pipes and copper-aluminum composite pipes are widely used in the processing and manufacturing of various tubular components due to their excellent thermal conductivity, corrosion resistance, and mechanical strength. Among these processes, winding is one of the key steps in the production of these pipes. It requires the use of winding equipment to tightly wrap the insulation layer, protective strip, or other functional layers onto the outer wall of the pipe, or to wind a reinforcing layer with a specific structure onto the surface of the pipe to meet the product's requirements for thermal insulation, protection, or structural strength.

[0003] However, the material properties and processing scenarios of copper tubes and copper-aluminum composite tubes place stringent requirements on clamping fixtures. Existing clamping methods, such as traditional external clamps, easily cause clamping marks and deformation on the outer wall of the tube, especially in the processing of thin-walled copper tubes, where these marks directly affect the sealing performance and service life of the tube. Meanwhile, some internal support clamps suffer from uneven tension and low positioning accuracy. During high-speed winding, the tube is prone to axial movement or circumferential slippage, resulting in uneven winding layer thickness and disordered wire arrangement, severely impacting product quality stability. Furthermore, existing fixtures have poor adaptability; special fixtures are required for tubes of different diameters, making operation cumbersome, reducing production efficiency, and increasing equipment investment costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A universal quick loading and unloading mechanism for a tubular product winding machine includes: a material carrier base, on which are provided: a material carrier sleeve, a tensioning clamp mounted on the material carrier sleeve, and a drive cylinder for controlling the tensioning clamp;

[0006] The tensioning clamp includes: a fixed seat, a tensioning sleeve, an inner support sleeve, and a pull block; the fixed seat is fitted onto one end of the material-carrying sleeve, and the fixed seat has an outwardly extending fitting section formed on the fixed seat, and the tensioning sleeve, the inner support sleeve, and the pull block are sequentially nested on the fitting section;

[0007] The drive cylinder is installed at the other end of the material-carrying sleeve, and a drive connecting rod is provided on the piston rod of the drive cylinder. The other end of the drive connecting rod extends axially along the inside of the material-carrying sleeve, passes through to the outside of the pull block, and a drive nut is installed at the end.

[0008] As a further embodiment of this utility model: the end of the inner support sleeve that contacts the tensioning sleeve is an embedded part with a conical structure, and the opening of the tensioning sleeve is formed with a guide surface that is inclined towards the center.

[0009] The beneficial effects of this utility model are as follows: Through the coordinated design of the internal support tensioning structure and the driving cylinder, this utility model achieves efficient and stable clamping for the winding processing of copper tubes and copper-aluminum composite tubes. Its core effect is significant: after being driven by the internal support sleeve, the tensioning sleeve is evenly expanded outward and fully fits the inner wall of the workpiece. This not only avoids the surface scratches and deformation problems caused by traditional external clamping fixtures, but also solves the axial movement and circumferential slippage caused by uneven tensioning force of ordinary internal support fixtures, thus greatly improving the workpiece positioning accuracy and the processing quality of the winding layer.

[0010] By leveraging the elastic deformation characteristics of the tensioning sleeve, it can be compatible with the processing of pipes of different diameters within a certain range, eliminating the need for frequent replacement of special fixtures, simplifying the operation process, and reducing equipment investment and maintenance costs. The drive cylinder, combined with a simple linkage transmission structure, enables the clamping and loosening actions to respond quickly and switch smoothly, fully adapting to continuous and high-speed production cycles, effectively improving overall processing efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a cross-sectional view of the present invention.

[0013] Figure 3 This is a schematic diagram of the tensioning clamp in this utility model. Detailed Implementation

[0014] 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 some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0015] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] This utility model provides a reference. Figures 1-3 In this embodiment of the utility model, a universal quick loading and unloading mechanism for a tubular product winding machine includes: a material carrier base 2, on which are provided: a material carrier sleeve 3, a tensioning clamp 4 mounted on the material carrier sleeve 3, and a drive cylinder 1 for controlling the tensioning clamp 4.

[0019] The tensioning clamp 4 includes: a fixed base 41, a tensioning sleeve 42, an inner support sleeve 43, and a pull block 44; the fixed base 41 is fitted onto one end of the material-carrying sleeve 3, and an outwardly extending fitting section 411 is formed on the fixed base 41, and the tensioning sleeve 42, the inner support sleeve 43, and the pull block 44 are sequentially nested on the fitting section 411.

[0020] The drive cylinder 1 is installed at the other end of the material loading sleeve 3, and a drive connecting rod 6 is provided on the piston rod of the drive cylinder 1. The other end of the drive connecting rod 6 extends axially along the inside of the material loading sleeve 3, passes through to the outside of the pull block 44, and a drive nut 5 is installed at the end.

[0021] During operation, the sleeve section 411 of the fixed seat 41 is inserted into the inner hole of the tubular workpiece; then, the piston rod is driven to retract by the drive cylinder 1, and the drive nut 5 is moved towards the material-carrying sleeve 3 by the drive connecting rod 6, so that the pull block 44 pulls the inner support sleeve 43 to move towards the inner support sleeve 43. The inner support sleeve 43 causes the tension sleeve 42 to be stretched outward and contact the inner wall of the workpiece to achieve tension and fixation of the workpiece; when the piston rod of the drive cylinder 1 extends, the inner support sleeve 43 returns to its original position with the connecting rod, and the tension sleeve 42 elastically contracts after losing the conical surface support, releasing the clamping of the workpiece.

[0022] Furthermore, the end of the inner support sleeve 43 that contacts the tensioning sleeve 42 is a tapered embedded part 431, and the opening of the tensioning sleeve 42 is formed with a guide surface 421 that is inclined towards the center. When the inner support sleeve 43 and the tensioning sleeve 42 work together, the tapered structure of the embedded part 431 and the guide surface 421 are used to make the tensioning sleeve 42 open outward, thereby achieving tensioning and fixing of the workpiece.

[0023] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 limitations, 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 said element.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A universal quick loading and unloading mechanism for a tubular product winding machine, characterized in that, include: A material carrier base, on which are provided: a material carrier sleeve, a tensioning clamp mounted on the material carrier sleeve, and a drive cylinder for controlling the tensioning clamp; The tensioning clamp includes: a fixed seat, a tensioning sleeve, an inner support sleeve, and a pull block; the fixed seat is fitted onto one end of the material-carrying sleeve, and the fixed seat has an outwardly extending fitting section formed on the fixed seat, and the tensioning sleeve, the inner support sleeve, and the pull block are sequentially nested on the fitting section; The drive cylinder is installed at the other end of the material-carrying sleeve, and a drive connecting rod is provided on the piston rod of the drive cylinder. The other end of the drive connecting rod extends axially along the inside of the material-carrying sleeve, passes through to the outside of the pull block, and a drive nut is installed at the end.

2. The universal quick loading and unloading mechanism for a tubular product winding machine according to claim 1, characterized in that, The end of the inner support sleeve that contacts the tensioning sleeve is a tapered embedded part, and the opening of the tensioning sleeve is formed with a guide surface that is inclined towards the center.