Heat exchange pipe groove processing die
The improved mold design simplifies the maintenance process of the stamping head, improves maintenance efficiency and stamping accuracy, enhances production safety, and solves the problem of low bolt disassembly efficiency in existing molds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江中颐气体科技有限公司
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-23
AI Technical Summary
In existing heat exchanger tube groove processing dies, the stamping head needs to be replaced frequently, requiring disassembly with multiple bolts, resulting in low maintenance efficiency.
The combination design of sliding block, limit plug, limit plate and fastening bolt simplifies the installation and disassembly process of the stamping head; combined with the protective cover driven by the lifting motor, it provides debris protection and guidance functions.
It improves the maintenance efficiency of the stamping head, ensures the subsequent stamping accuracy, reduces the harm of debris to operators, and enhances production safety.
Smart Images

Figure CN224389702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, and in particular to a die for processing heat exchanger tube grooves. Background Technology
[0002] In the field of heat exchanger tube manufacturing, grooving plays a crucial role in improving heat exchange efficiency. With the increasing demands of modern industry on the performance of heat exchange equipment, standards for the shape, dimensional accuracy, and surface quality of heat exchanger tube grooves are becoming increasingly stringent. Stamping dies are widely used in heat exchanger tube grooving; through the cooperation of a punch and die, driven by a press, the heat exchanger tube material undergoes plastic deformation, thereby forming grooves.
[0003] In the existing heat exchanger tube groove processing mold, the stamping head needs to frequently come into contact with and rub against the heat exchanger tube during the processing. Over long-term use, it is prone to wear and tear, which requires replacement and maintenance of the stamping head. However, the existing stamping head is usually fastened with a large number of bolts, which requires the use of special tools to disassemble multiple bolts, thus reducing maintenance efficiency. Utility Model Content
[0004] The purpose of this invention is to solve the problem that existing stamping heads are usually fastened with a large number of bolts, which requires the use of special tools to disassemble multiple bolts, thus reducing maintenance efficiency. Therefore, this invention proposes a heat exchange tube groove processing mold.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat exchanger tube groove processing mold, comprising a processing mold assembly, a protective component provided on the outer side of the processing mold assembly, and an installation / removal component provided on the processing mold assembly. The processing mold assembly includes an upper mold and a lower mold. An installation groove is provided on the upper mold, and a punching head is provided on the upper mold. The installation / removal component includes a sliding block, which is disposed on the top of the punching head and slides inside the installation groove. A limit plug is provided inside the installation groove. A fixing frame is symmetrically installed at one end of the upper mold, and a limit plate is movably installed inside the fixing frame.
[0006] Preferably, the protective component includes a protective cover, a light-transmitting plate is provided on the protective cover, a threaded rod passes through the protective cover, and a lifting motor is connected to the top of the threaded rod.
[0007] Preferably, a fastening bolt runs through the interior of the limiting plate, and a connecting seat is installed at one end of the upper mold, with the fastening bolt disposed on the connecting seat.
[0008] Preferably, the protective cover has guide posts extending through both ends, and a support frame is installed on the top of the guide posts.
[0009] Preferably, the lower mold has a forming chamber, and guide rods are installed at the four top corners of the lower mold.
[0010] Preferably, a cylinder is mounted on the top of the upper mold, and the cylinder is mounted on a support frame.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. In this utility model, by sliding the sliding block inside the mounting groove, it is convenient to install and remove the stamping head. Then, the limiting plug is slidably installed inside the mounting groove, which is beneficial to provide lateral limiting for the sliding block. The movable limiting plate moves inside the fixed frame, which is beneficial to provide limiting effect for the limiting plug. Then, the fastening bolt is inserted through the inside of the limiting plate, which is beneficial to limit the limiting plate. The stamping head can be maintained and replaced without installing and removing a large number of bolts, which improves maintenance efficiency and ensures the subsequent stamping accuracy.
[0013] 2. In this utility model, the screw rod is electrically driven by the lifting motor to rotate, which facilitates the lifting and adjustment of the protective cover. This makes it easier for the protective cover to provide protection during stamping, helps to block some of the flying debris, and reduces the possibility of operators being accidentally injured by debris, thus ensuring the safety of production. The guide column helps to guide the lifting and lowering of the protective cover. Attached Figure Description
[0014] Figure 1 A three-dimensional structural diagram of a heat exchanger tube groove processing mold is provided for this utility model;
[0015] Figure 2 This utility model provides another structural schematic diagram of a heat exchanger tube groove processing mold;
[0016] Figure 3 This utility model provides a partial structural schematic diagram of a heat exchanger tube groove processing mold;
[0017] Figure 4 This utility model provides a schematic diagram of the protective component structure for a heat exchanger tube groove machining mold;
[0018] Figure 5 This utility model provides an exploded view of the assembly and disassembly components of a heat exchanger tube groove machining mold.
[0019] Legend: 1. Machining mold components; 101. Upper mold; 102. Lower mold; 103. Forming chamber; 104. Guide rod; 105. Cylinder; 106. Punch head; 2. Protective components; 201. Protective cover; 202. Light-transmitting plate; 203. Guide column; 204. Threaded rod; 205. Lifting motor; 206. Support frame; 3. Installation and removal components; 301. Sliding block; 302. Limiting plug; 303. Fixing frame; 304. Limiting plate; 305. Fastening bolt. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1: As Figures 1-5 As shown, this utility model provides a technical solution: a heat exchanger tube groove processing mold, including a processing mold assembly 1, a protective assembly 2 provided on the outside of the processing mold assembly 1, and an installation / removal assembly 3 provided on the processing mold assembly 1. The processing mold assembly 1 includes an upper mold 101 and a lower mold 102. The upper mold 101 has an installation groove and a punch head 106. The installation / removal assembly 3 includes a sliding block 301, which is disposed on the top of the punch head 106 and slides inside the installation groove. The slot is equipped with a limit plug 302. A fixing frame 303 is symmetrically installed at one end of the upper mold 101. A limit plate 304 is movably installed inside the fixing frame 303. A fastening bolt 305 passes through the inside of the limit plate 304. A connecting seat is installed at one end of the upper mold 101. The fastening bolt 305 is set on the connecting seat. A forming chamber 103 is opened on the lower mold 102. Guide rods 104 are installed at the four corners of the top of the lower mold 102. A cylinder 105 is installed on the top of the upper mold 101. The cylinder 105 is set on the support frame 206.
[0023] In this embodiment, the heat exchange tube is placed inside the forming chamber 103. By controlling the extension of the cylinder 105, the upper mold 101 is pushed down. The guide rod 104 provides a guiding function, causing the stamping head 106 to stamp the heat exchange tube, thereby forming a groove on the heat exchange tube. By sliding the sliding block 301 inside the mounting groove, it is easy to install and remove the stamping head 106. Then, the limiting plug 302 is simultaneously slidable inside the mounting groove, which helps to provide lateral limitation for the sliding block 301. The movable limiting plate 304 moves inside the fixed frame 303, which helps to limit the limiting plug 302. Then, the fastening bolt 305 passes through the inside of the limiting plate 304, which helps to limit the limiting plate 304. The stamping head 106 can be maintained and replaced without installing and removing a large number of bolts, which improves maintenance efficiency and ensures the subsequent stamping accuracy.
[0024] Example 2: Figures 1-5 As shown, the protective component 2 includes a protective cover 201, a light-transmitting plate 202 on the protective cover 201, a threaded rod 204 passing through the protective cover 201, a lifting motor 205 connected to the top of the threaded rod 204, guide columns 203 passing through both ends of the protective cover 201, and a support frame 206 installed on the top of the guide columns 203.
[0025] In this embodiment, the threaded rod 204 is electrically driven by the lifting motor 205 to rotate, which facilitates the lifting and lowering adjustment of the protective cover 201. This makes it easier for the protective cover 201 to provide protection during stamping, which helps to block some of the flying debris and reduces the possibility of operators being accidentally injured by debris, thus ensuring production safety. The guide column 203 helps to guide the lifting and lowering of the protective cover 201. When stamping is not required, the protective cover 201 can be moved to a higher position without affecting the normal handling of heat exchange tubes.
[0026] The working principle of this embodiment is as follows: During use, the heat exchange tube is first placed inside the forming chamber 103. Then, the threaded rod 204 is electrically driven by the lifting motor 205 to rotate, which facilitates the lifting and adjustment of the protective cover 201. This allows the protective cover 201 to provide protection during stamping, helping to prevent some debris from splashing. Subsequently, the control cylinder 105 extends to push the upper mold 101 down. The guide rod 104 provides guidance, causing the stamping head 106 to stamp the heat exchange tube, thus forming grooves on the heat exchange tube. When stamping is no longer needed, the protective cover 201 is moved to a higher position. This does not affect the normal handling of heat exchange tubes. Sliding the sliding block 301 inside the mounting groove facilitates the installation and removal of the stamping head 106. Then, the limiting plug 302 is simultaneously slidable inside the mounting groove, which helps to provide lateral limitation for the sliding block 301. The movable limiting plate 304 moves inside the fixed frame 303, which helps to limit the limiting plug 302. Then, the fastening bolt 305 is inserted through the limiting plate 304, which helps to limit the limiting plate 304. The stamping head 106 can be maintained and replaced without the need to install and remove a large number of bolts, thus improving maintenance efficiency.
[0027] The cylinder 105, threaded rod 204, and lifting motor 205 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the cylinder 105, threaded rod 204, and lifting motor 205 will not be explained in detail.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A mold for machining heat exchanger tube grooves, comprising a mold assembly (1), characterized in that: The processing mold assembly (1) is provided with a protective component (2) on its outer side. The processing mold assembly (1) is provided with a disassembly component (3). The processing mold assembly (1) includes an upper mold (101) and a lower mold (102). The upper mold (101) is provided with an installation groove and a punch head (106) is provided on the upper mold (101). The disassembly component (3) includes a sliding block (301). The sliding block (301) is located on the top of the punch head (106) and slides inside the installation groove. A limit plug (302) is provided inside the installation groove. A fixing frame (303) is symmetrically installed at one end of the upper mold (101). A limit plate (304) is movably installed inside the fixing frame (303).
2. The heat exchanger tube groove processing mold according to claim 1, characterized in that: The protective component (2) includes a protective cover (201), on which a light-transmitting plate (202) is provided, and a threaded rod (204) passes through the protective cover (201), with a lifting motor (205) connected to the top of the threaded rod (204).
3. The heat exchanger tube groove processing mold according to claim 1, characterized in that: A fastening bolt (305) runs through the interior of the limiting plate (304), and a connecting seat is installed at one end of the upper mold (101), with the fastening bolt (305) set on the connecting seat.
4. The heat exchanger tube groove processing mold according to claim 2, characterized in that: The protective cover (201) has guide posts (203) running through both ends, and a support frame (206) is installed on the top of the guide posts (203).
5. The heat exchanger tube groove processing mold according to claim 1, characterized in that: The lower mold (102) is provided with a forming chamber (103), and guide rods (104) are installed at the four corners of the top of the lower mold (102).
6. The heat exchanger tube groove processing mold according to claim 4, characterized in that: A cylinder (105) is mounted on the top of the upper mold (101), and the cylinder (105) is mounted on the support frame (206).