Numerical control necking machine for micro-channel zinc-sprayed aluminum flat pipe production

By designing the clamping and driving components, the problems of low production efficiency and product quality caused by unstable fixing in the existing technology are solved. Stable fixing and movement of flat tubes of different sizes are achieved, improving processing efficiency and product quality.

CN223789407UActive Publication Date: 2026-01-13BANG DE SAN RE KE JI (SU ZHOU) YOU XIAN GONG SI
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Patent Information

Application Number
CN202520315568.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-01-13
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Existing shrinking machines cannot stably fix flat tubes of different sizes, resulting in low production efficiency and poor product quality. Furthermore, flat tubes are prone to displacement and deformation during processing.

Method used

The device employs a clamping assembly and a driving assembly. The clamping assembly drives the moving block and roller via first and second bidirectional lead screws to achieve stable fixing of flat tubes of different sizes. The driving assembly adjusts the position of the roller via a second drive motor and a throttle to achieve movement and necking of the flat tube.

Benefits of technology

It enables stable fixing and movement of flat tubes of different sizes, improving production efficiency and product quality, and ensuring processing accuracy and stability.

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Abstract

The utility model belongs to the technical field of micro-channel zinc-sprayed aluminum flat tube production equipment, and particularly relates to a numerical control necking machine for micro-channel zinc-sprayed aluminum flat tube production, which comprises a support plate, a clamping component fixedly mounted at the top of the support plate, a driving component fixedly mounted in the clamping component, a fire spraying tube fixedly mounted at the front end of the support plate, and a control component fixedly mounted at the rear end of the fire spraying tube. A shaping block is fixedly installed at the front end of the supporting plate and located at the front end of the fire spraying pipe. And the clamping assembly comprises two first moving blocks, a first rolling shaft and a first two-way lead screw, and the two first moving blocks are slidably mounted at the top of the supporting plate. According to the utility model, flat tubes with different sizes can be stably fixed; and the movement of the flat pipe is realized, the flat pipe can be conveniently subjected to necking processing, and the production efficiency and the product quality of the flat pipe are improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of microchannel zinc-aluminum sprayed flat tube production equipment, specifically a CNC shrinking machine for microchannel zinc-aluminum sprayed flat tube production. Background Technology

[0002] Microchannel zinc-aluminum sprayed flat tubes can be used in heat exchange systems, refrigeration equipment, etc., possessing excellent heat dissipation and corrosion resistance, effectively improving equipment operating efficiency and extending service life. In the production process of microchannel zinc-aluminum sprayed flat tubes, a CNC necking machine plays a crucial role. Based on precise control of a CNC system, it can neck the ends of the flat tubes to meet specific installation and usage requirements, ensuring stable connection and efficient operation within the system.

[0003] However, existing shrinking machines cannot fix flat tubes of different sizes. Different fixing devices need to be replaced for flat tubes of different specifications, which is time-consuming and labor-intensive and affects production efficiency. Moreover, due to inaccurate fixing, problems such as flat tube displacement and deformation are prone to occur during the shrinking process, thus affecting the quality of flat tube products. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC shrinking machine for the production of microchannel zinc-aluminum sprayed flat tubes, which can stably fix flat tubes of different sizes and realize the movement of flat tubes, making it convenient to perform shrinking processing on flat tubes, thereby improving production efficiency and the quality of flat tube products.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a CNC shrinking machine for producing microchannel zinc-aluminum flat tubes is provided, including a support plate, a clamping assembly fixedly installed on the top of the support plate, a driving assembly fixedly installed inside the clamping assembly, a flame-spraying pipe fixedly installed at the front end of the support plate, and a shaping block fixedly installed at the front end of the support plate, the shaping block being located at the front end of the flame-spraying pipe.

[0006] The clamping assembly includes a first movable block, a first roller, and a first bidirectional lead screw. There are two first movable blocks, which are slidably mounted on the top of the support plate. There are multiple first rollers, which are movably mounted inside the first movable blocks. The first bidirectional lead screw is movably mounted inside the support plate. The two first movable blocks are threaded onto the outer wall of the first bidirectional lead screw.

[0007] Optionally, the clamping assembly further includes a first drive motor, a first slide rod, and ear plates. The first moving block is fixedly installed on the outer wall of the support plate. One end of the first bidirectional lead screw is fixedly installed on the output end of the first drive motor. The first slide rod is fixedly installed inside the support plate. Two ear plates are fixedly connected to the bottom of the first moving block. The ear plate on one side of the first bidirectional lead screw is threaded onto the outer wall of the first bidirectional lead screw. The first slide rod on one side of the first slide rod is slidably sleeved onto the outer wall of the first slide rod.

[0008] Optionally, the drive assembly includes a mounting block, a second bidirectional lead screw, a second slide rod, a second moving block, and a second roller. The mounting block is fixedly connected to the rear end of the outer wall of the first moving block. The second bidirectional lead screw is movably installed inside the mounting block. The second slide rod is fixedly connected inside the mounting block. There are two second moving blocks, located on the upper and lower sides of the mounting block. The second moving blocks are sleeved on the outer walls of the second bidirectional lead screw and the second slide rod.

[0009] Optionally, the drive assembly further includes a second drive motor and a throttle, the second drive motor being fixedly installed inside the second moving block, one end of the second roller being fixedly installed at the output end of the second drive motor, and the throttle being fixedly connected to the top of the second bidirectional lead screw.

[0010] Optionally, a connecting pipe is fixedly connected to the outer wall of the flamethrower.

[0011] Optionally, the bottom of the support plate is fixedly connected to a support leg, and there are multiple support legs. The multiple support legs are distributed in a rectangular shape at the bottom of the support plate, and the bottom of the support legs is fixedly installed on the machine tool.

[0012] Optionally, a connecting frame is fixedly installed at the front end of the support plate, and the flame tube and the shaping block are both fixedly installed inside the flame tube and the shaping block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model is equipped with a clamping assembly. When in use, the first drive motor is started, which drives the first bidirectional lead screw to rotate. Since the two first moving blocks are threaded on the outer wall of the first bidirectional lead screw, and the first moving blocks will move towards or away from each other along the first bidirectional lead screw with the cooperation of the first slide bar and the ear plate, the first roller can fit against the outer wall of flat tubes of different sizes, thereby stably fixing flat tubes of different sizes, improving production efficiency and product quality.

[0015] This utility model is equipped with a drive assembly. Rotating the throttle drives the second bidirectional lead screw to rotate, thereby causing the two second moving blocks to move in opposite directions or away from each other along the second slide bar. This adjusts the fit between the second roller and the flat tube. Starting the second drive motor drives the second roller to rotate, thereby realizing the movement of the flat tube. This facilitates the narrowing process of the flat tube and further improves production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0021] In the diagram: 1. Support plate; 2. Clamping assembly; 201. First moving block; 202. First roller; 203. First bidirectional lead screw; 204. First drive motor; 205. First slide bar; 206. Ear plate; 3. Drive assembly; 301. Mounting block; 302. Second bidirectional lead screw; 303. Second slide bar; 304. Second moving block; 305. Second roller; 306. Second drive motor; 307. Throttle; 4. Connecting frame; 5. Flame pipe; 6. Shaping block; 7. Support leg. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0025] 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.

[0026] Reference Figure 1-4This invention provides a CNC shrinking machine for producing microchannel zinc-aluminum sprayed flat tubes. The machine includes a support plate 1, on top of which a flat tube is placed. A clamping assembly 2 is fixedly installed on the top of the support plate 1, fixing the flat tube from both sides to prevent displacement during processing. A drive assembly 3 is fixedly installed inside the clamping assembly 2, enabling movement of the flat tube after the first roller 202 fixes both sides, facilitating shrinking. The flat tube is located inside the clamping assembly 2. A flame-blowing pipe 5 is fixedly installed at the front end of the support plate 1. The flame-blowing pipe 5 is used for… The flat tube end is heated to a suitable temperature for necking and shaping. A shaping block 6 is fixedly installed at the front end of the support plate 1. The shaping block 6 is used to shape the heated flat tube end to form the required necking shape, which cooperates with the flame tube 5 to complete the necking process of the flat tube. The shaping block 6 is located at the front end of the flame tube 5. The shaping block 6 is set at the front end of the flame tube 5 to ensure that the flat tube is heated by the flame tube 5 first, and then enters the shaping block 6 for shaping. The clamping assembly 2 includes a first moving block 201, a first roller 202, and a first bidirectional lead screw 20. 3. There are two first movable blocks 201, which are slidably mounted on the top of the support plate 1. The distance between the two first movable blocks 201 can be changed by sliding to accommodate flat tubes of different sizes. There are multiple first rollers 202, which are movably mounted inside the first movable blocks 201. When the first movable block 201 moves and contacts the flat tube, the first rollers 202... 02 can fit against the outer wall of the flat tube and roll during the movement of the flat tube, thereby reducing friction. The first bidirectional lead screw 203 is movably installed inside the support plate 1. The first bidirectional lead screw 203 is movably installed inside the support plate 1. By rotating, it can drive the two first moving blocks 201 to move towards or away from each other. The two first moving blocks 201 are threaded onto the outer wall of the first bidirectional lead screw 203. The first roller 202 fits against the outer wall of the flat tube, which can ensure stable clamping of the flat tube. At the same time, rolling will not affect the movement of the flat tube under the action of the drive component 3.

[0027] This utility model provides a CNC shrinking machine for producing microchannel zinc-aluminum sprayed flat tubes. Compared with the prior art, it can stably fix flat tubes of different sizes and realize the movement of flat tubes, which facilitates the shrinking process of flat tubes, thereby improving production efficiency and the quality of flat tube products.

[0028] In another embodiment of this utility model, please refer to Figures 1 to 3The clamping assembly 2 also includes a first drive motor 204, a first slide rod 205, and an ear plate 206. The first moving block 201 is fixedly installed on the outer wall of the support plate 1. One end of the first bidirectional lead screw 203 is fixedly installed on the output end of the first drive motor 204. The first bidirectional lead screw 203 is fixedly connected to the output end of the first drive motor 204. When the first drive motor 204 rotates, it can drive the first bidirectional lead screw 203 to rotate, providing power for the movement of the first moving block 201. The first slide rod 205 is fixedly installed inside the support plate 1. The first slide rod 205 serves as a guide, ensuring that the first moving block 201 moves in a straight line during movement, avoiding... To prevent deviation, two ear plates 206 are fixedly connected to the bottom of the first moving block 201. The ear plates 206 are fixed to the bottom of the first moving block 201 and are used to cooperate with the first bidirectional lead screw 203 and the first slide rod 205 to realize the movement and positioning of the first moving block 201. The ear plate 206 on one side of the first bidirectional lead screw 203 is threaded onto the outer wall of the first bidirectional lead screw 203, so that the first bidirectional lead screw 203 can drive the first moving block 201 to move when it rotates. The first slide rod 205 on one side of the first slide rod 205 is slidably sleeved on the outer wall of the first slide rod 205 to ensure the stability of the first moving block 201 during the movement and enable it to move in a straight line.

[0029] In another embodiment of this utility model, please refer to Figures 1 to 4The drive assembly 3 includes a mounting block 301, a second bidirectional lead screw 302, a second slide bar 303, a second moving block 304, and a second roller 305. The mounting block 301 is fixedly connected to the rear end of the outer wall of the first moving block 201. The second bidirectional lead screw 302 is movably installed inside the mounting block 301. Rotation of the second bidirectional lead screw 302 can drive the second moving block 304 to move, thereby adjusting the position of the second roller 305. The second slide bar 303 is fixedly connected inside the mounting block 301, providing guidance for the movement of the second moving block 304 and ensuring its linear movement. There are two second moving blocks 304, located on the upper and lower sides of the mounting block 301. The movable blocks 304 are located on the upper and lower sides of the mounting block 301, respectively. By moving towards or away from each other, the degree of contact between the second roller 305 and the flat tube can be adjusted. The second movable block 304 is sleeved on the outer wall of the second bidirectional lead screw 302 and the second slide rod 303. The sleeved relationship between the second movable block 304, the second bidirectional lead screw 302, and the second slide rod 303 allows the second movable block 304 to move along the second slide rod 303 when the second bidirectional lead screw 302 rotates. The second roller 305 is movably mounted on the side of the second movable block 304 near the flat tube. When the second movable block 304 moves, the second roller 305 can contact the flat tube and drive the flat tube to move when it rotates. The outer wall of the second roller 305 is in contact with the top of the flat tube.

[0030] In another embodiment of this utility model, please refer to Figures 1 to 4 The drive assembly 3 also includes a second drive motor 306 and a throttle 307. The second drive motor 306 is fixedly installed inside the second moving block 304. The second drive motor 306 provides power for the rotation of the second roller 305, ensuring that the second roller 305 can drive the flat tube to move. One end of the second roller 305 is fixedly installed at the output end of the second drive motor 306. The throttle 307 is fixedly connected to the top of the second bidirectional lead screw 302. The throttle 307 can be rotated to drive the second bidirectional lead screw 302 to rotate, thereby adjusting the position of the second moving block 304 to accommodate flat tubes of different thicknesses.

[0031] In another embodiment of this utility model, please refer to Figure 1 and Figure 2 A connecting pipe is fixedly connected to the outer wall of the flame tube 5. The connecting pipe is used to supply fuel such as gas to the flame tube 5 to ensure that the flame tube 5 can spray flames normally to heat the flat tube.

[0032] In another embodiment of this utility model, please refer to Figure 1and Figure 2 The bottom of the support plate 1 is fixedly connected to a support leg 7. There are multiple support legs 7, which are arranged in a rectangular shape at the bottom of the support plate 1. The multiple support legs 7 are arranged in a rectangular shape at the bottom of the support plate 1 to provide stable support for the support plate 1 and ensure the stability of the present invention during operation. The bottom of the support leg 7 is fixedly installed on the machine tool, which connects the present invention and the machine tool into a whole, further enhancing the stability and reliability of the equipment.

[0033] In another embodiment of this utility model, please refer to Figure 1 and Figure 2 A connecting bracket 4 is fixedly installed at the front end of the support plate 1. The flame tube 5 and the plastic block 6 are both fixedly installed inside the flame tube 5 and the plastic block 6. The connecting bracket 4 is fixed at the front end of the support plate 1 to fix the flame tube 5 and the plastic block 6, ensuring that the flame tube 5 and the plastic block 6 are stable in position during the working process, thereby ensuring the accuracy of the necking process.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A CNC shrinking machine for producing microchannel zinc-aluminum sprayed flat tubes, comprising a support plate (1), characterized in that: A clamping assembly (2) is fixedly installed on the top of the support plate (1), a driving assembly (3) is fixedly installed inside the clamping assembly (2), a flame pipe (5) is fixedly installed at the front end of the support plate (1), and a shaping block (6) is fixedly installed at the front end of the support plate (1). The shaping block (6) is located at the front end of the flame pipe (5). The clamping assembly (2) includes a first moving block (201), a first roller (202), and a first bidirectional lead screw (203). There are two first moving blocks (201), which are slidably mounted on the top of the support plate (1). There are multiple first rollers (202), which are movably mounted inside the first moving block (201). The first bidirectional lead screw (203) is movably mounted inside the support plate (1), and the two first moving blocks (201) are threaded onto the outer wall of the first bidirectional lead screw (203).

2. The CNC necking machine for producing microchannel zinc-aluminum sprayed flat tubes as described in claim 1, characterized in that: The clamping assembly (2) further includes a first drive motor (204), a first slide rod (205), and ear plates (206). The first moving block (201) is fixedly installed on the outer wall of the support plate (1). One end of the first bidirectional lead screw (203) is fixedly installed on the output end of the first drive motor (204). The first slide rod (205) is fixedly installed inside the support plate (1). Two ear plates (206) are fixedly connected to the bottom of the first moving block (201). The ear plate (206) on one side of the first bidirectional lead screw (203) is threaded onto the outer wall of the first bidirectional lead screw (203). The first slide rod (205) on one side of the first slide rod (205) is slidably sleeved on the outer wall of the first slide rod (205).

3. The CNC necking machine for producing microchannel zinc-aluminum sprayed flat tubes as described in claim 1, characterized in that: The drive assembly (3) includes a mounting block (301), a second bidirectional lead screw (302), a second slide rod (303), a second moving block (304), and a second roller (305). The mounting block (301) is fixedly connected to the rear end of the outer wall of the first moving block (201). The second bidirectional lead screw (302) is movably installed inside the mounting block (301). The second slide rod (303) is fixedly connected inside the mounting block (301). There are two second moving blocks (304), which are located on the upper and lower sides of the mounting block (301). The second moving blocks (304) are sleeved on the outer walls of the second bidirectional lead screw (302) and the second slide rod (303).

4. The CNC necking machine for producing microchannel zinc-aluminum sprayed flat tubes as described in claim 3, characterized in that: The drive assembly (3) further includes a second drive motor (306) and a throttle (307). The second drive motor (306) is fixedly installed inside the second moving block (304). One end of the second roller (305) is fixedly installed at the output end of the second drive motor (306). The throttle (307) is fixedly connected to the top of the second bidirectional lead screw (302).

5. The CNC necking machine for producing microchannel zinc-aluminum sprayed flat tubes as described in claim 1, characterized in that: A connecting pipe is fixedly connected to the outer wall of the flamethrower tube (5).

6. The CNC necking machine for producing microchannel zinc-aluminum sprayed flat tubes as described in claim 1, characterized in that: The bottom of the support plate (1) is fixedly connected to a support leg (7). There are multiple support legs (7), which are arranged in a rectangular shape at the bottom of the support plate (1). The bottom of the support leg (7) is fixedly installed on the machine tool.

7. The CNC necking machine for producing microchannel zinc-aluminum sprayed flat tubes as described in claim 1, characterized in that: A connecting frame (4) is fixedly installed at the front end of the support plate (1), and the flame pipe (5) and the plastic block (6) are both fixedly installed inside the flame pipe (5) and the plastic block (6).