Clamp tool for heat exchanger sleeve production
By using symmetrical cylinder drive and arc-shaped notch design, the fixture tooling solves the problems of compatibility and uneven clamping of traditional fixture tooling, realizes efficient and stable processing of multi-size sleeves, and improves production quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional fixtures used in heat exchanger tube production are difficult to adapt to tubes of different diameters, resulting in frequent changes, uneven clamping, and difficulty in ensuring accuracy, which affects production efficiency and quality.
The symmetrically arranged cylinder-driven fixture, combined with the arc-shaped notch design and elastic buffer, achieves multi-size adaptation and uniform clamping. The clamping and releasing are automatically controlled by the cylinder, reducing manual intervention.
It improves the clamping uniformity and processing accuracy of sleeve production, reduces the frequency of fixture replacement, enhances production efficiency and safety, and extends the service life of tooling.
Smart Images
Figure CN224059670U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat exchanger tube manufacturing, specifically relating to a fixture for heat exchanger tube manufacturing. Background Technology
[0002] In the production process of heat exchanger sleeves, fixtures are key equipment to ensure the machining accuracy of the sleeves. Traditional fixtures have the following problems: fixed fixtures are difficult to adapt to sleeves of different diameters, requiring frequent replacement of fixture heads, which affects production efficiency; manual or simple mechanical clamping can easily lead to uneven force on the sleeve, causing deformation or surface damage; and relying on manual operation to adjust the clamping position makes it difficult to guarantee accuracy and is time-consuming. Utility Model Content
[0003] The main purpose of this utility model is to provide a fixture for the production of heat exchanger sleeves. Through symmetrical cylinder drive, arc-shaped notch adaptation and elastic buffer design, it achieves efficient clamping, multi-size compatibility and stable processing, significantly improving production quality and efficiency.
[0004] To achieve the above objectives, this utility model provides a fixture for producing heat exchanger sleeves. The fixture includes a first fixture and a second fixture arranged symmetrically. Both the first fixture and the second fixture are provided with a fixing block, and the fixing block is provided with an arc-shaped notch. The first fixture and the second fixture are provided with a cylinder. The drive rod of the cylinder is connected to a connecting plate. A moving block is connected to the connecting plate, and the front end of the moving block is provided with an arc-shaped notch.
[0005] This utility model provides a fixture for producing heat exchanger sleeves. The symmetrical fixture clamps the sleeves synchronously, ensuring balanced force and preventing skewing or deformation. The cylinder drive enables automated clamping / unclamping, improving operational efficiency. The arc-shaped notch adapts to sleeves of different diameters, reducing the frequency of fixture replacement.
[0006] In one possible implementation, the fixed block and the movable block have a total of four arc-shaped notches, each being a quarter-circle. The four notches close to form a complete circular clamping surface, increasing the contact area and dispersing the clamping force.
[0007] In one possible implementation, the cylinder is positioned on the back of the fixed block, and the connecting plate has an L-shaped structure. Rear-mounted cylinder saves space, avoids interference with the processing area, and improves operational safety.
[0008] In one possible implementation, a clamping block is provided in front of the moving block, and the arc-shaped notch is provided on the clamping block. Modular design reduces maintenance costs and extends the service life of the tooling.
[0009] In one possible implementation, a spring is provided between the movable block and the clamping block on the first fixture. The spring buffers the impact force of the cylinder, preventing excessive clamping that could cause indentation on the sleeve, and elastically compensates for minor gaps between the clamping block and the sleeve, ensuring clamping stability. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of a fixture for producing heat exchanger sleeves provided by this utility model. Detailed Implementation
[0011] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0012] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.
[0013] In the description of this application, the terms "first," "second," etc., 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.
[0014] See attached diagram. Figure 1 , Figure 1 This is a schematic diagram of a fixture for producing heat exchanger sleeves provided by this utility model. Figure 1 As shown, the present invention provides a fixture for producing heat exchanger sleeves, comprising a first fixture 11 and a second fixture 12 symmetrically arranged. Both the first fixture 11 and the second fixture 12 are provided with a fixing block 2, and the fixing block 2 is provided with an arc-shaped notch 3. The first fixture 11 and the second fixture 12 are provided with a cylinder 4, the drive rod of the cylinder 4 is connected to a connecting plate 5, and a moving block 6 is connected to the connecting plate 5. The front end of the moving block 6 is provided with an arc-shaped notch 3.
[0015] This utility model provides a fixture for producing heat exchanger sleeves. The symmetrical fixture clamps the sleeves synchronously, ensuring balanced force and preventing skewing or deformation. The cylinder 4 drives the automatic clamping / releasing, improving operating efficiency. The arc-shaped notch 3 adapts to sleeves of different diameters, reducing the frequency of fixture replacement.
[0016] In one possible implementation, the fixed block 2 and the movable block 6 are provided with a total of four arc-shaped notches 3, each being a quarter-circle arc. The four notches close to form a complete circular clamping surface, increasing the contact area and dispersing the clamping force.
[0017] In one possible implementation, the cylinder 4 is positioned on the back of the fixing block 2, and the connecting plate 5 has an L-shaped structure. Positioning the cylinder 4 at the rear saves space, avoids interference with the processing area, and improves operational safety.
[0018] In one possible implementation, a clamping block 7 is provided in front of the moving block 6, and the arc-shaped notch 3 is provided on the clamping block 7. Modular design reduces maintenance costs and extends the service life of the tooling.
[0019] In one possible implementation, a spring 8 is provided between the movable block 6 and the clamping block 7 on the first fixture 11. The spring 8 buffers the impact force of the cylinder 4, prevents excessive clamping that could cause indentation on the sleeve, and elastically compensates for the small gap between the clamping block 7 and the sleeve, ensuring clamping stability.
[0020] It is worth mentioning that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A clamp tool for heat exchanger tube production, characterized by, The utility model provides a first clamp tool and a second clamp tool are arranged symmetrically, and are provided with fixed blocks on the first clamp tool and the second clamp tool, are provided with arc notches on the fixed blocks, are provided with air cylinders on the first clamp tool and the second clamp tool, the drive rod of air cylinder is connected to a connecting plate, is connected with moving block on the connecting plate, and is provided with arc notches on the front end of moving block.
2. The heat exchanger tube production clamp tool according to claim 1, wherein Four arc notches are arranged on the fixed block and the moving block in total, and are all quarter circular arcs.
3. The heat exchanger tube production clamp tool of claim 2, wherein, The air cylinder is arranged on the back of the fixed block, and the connecting plate is of L-shaped structure.
4. The heat exchanger tube production clamp tool of claim 3, wherein, The moving block is provided with a clamp block in front, and the arc notch is arranged on the clamp block.
5. The heat exchanger tube production clamp tool of claim 4, wherein, A spring is arranged between the moving block and the clamp block on the first clamp tool.