A cutting device for heat exchanger production
Patent Information
- Application Number
- CN202521915248.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-05
AI Technical Summary
Existing cutting equipment mostly uses a fixed clamp structure, which requires frequent replacement of clamp components when processing heat exchange tubes of different lengths, reducing production efficiency. Furthermore, the lack of effective tube limit protection affects cutting quality and poses safety hazards.
A cutting device for heat exchanger production was designed, comprising an adjustable clamping mechanism, a fixed clamping mechanism, an electric cutting mechanism, and a limiting mechanism. Through the combined use of these mechanisms, the heat exchange tubes are stably clamped and precisely cut, ensuring the consistency of length and cutting quality of each tube.
This technology enables efficient and precise cutting of heat exchange tubes, improving production efficiency, ensuring consistent cutting quality, and reducing operational safety hazards.
Smart Images
Figure CN224927091U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger tube cutting technology, specifically a cutting device used in heat exchanger production. Background Technology
[0002] In the heat exchanger manufacturing industry, heat exchanger tubes, as core heat transfer elements, directly affect the overall performance and assembly quality of the heat exchanger due to their cutting accuracy. Traditional heat exchanger tube cutting equipment suffers from the following technical defects: existing cutting equipment mostly adopts a fixed clamp structure, requiring frequent clamp assembly changes when processing heat exchanger tubes of different lengths, leading to reduced production efficiency. Furthermore, traditional equipment lacks effective tube limiting protection devices, which not only affects cutting quality but also poses operational safety hazards. Therefore, a cutting device for heat exchanger production is proposed to solve the above problems. Utility Model Content
[0003] (a) Technical problems to be solved The purpose of this invention is to address the problems of existing cutting equipment, which mostly uses a fixed clamp structure, requiring frequent replacement of clamp components when processing heat exchange tubes of different lengths, resulting in reduced production efficiency. Furthermore, traditional equipment lacks an effective tube limiting protection device, which not only affects cutting quality but also poses operational safety hazards. Therefore, this invention proposes a cutting device for heat exchanger production.
[0004] (II) Technical Solution The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A cutting device for heat exchanger production includes a cutting bracket, an adjustable clamping mechanism and a fixed clamping mechanism at the top of the cutting bracket, a column fixedly connected to the top of the cutting bracket, an electric cutting mechanism for cutting heat exchanger tubes on the column, and a limiting mechanism for limiting the heat exchanger tubes at the top of the cutting bracket.
[0005] Based on the above technical solution, the present invention can be further improved as follows.
[0006] Preferably, the adjustable clamping mechanism includes slide rails, and two slide rails are fixedly connected to the top of the cutting bracket. Slide bars are slidably connected to the inner sides of the two slide rails, and the tops of the two slide bars are fixedly connected to the connecting plate. A fixed end is fixedly connected to the top of the connecting plate, and a cylinder is fixedly connected to the top of the connecting plate. A clamping end is fixedly connected to the output end of the cylinder. A linear module is provided at the top of the cutting bracket, and the moving end of the linear module is connected to the connecting plate.
[0007] Preferably, the fixed clamping mechanism includes a first electric push rod, two first electric push rods are fixedly connected to the top of the cutting bracket, and movable clamping plates are fixedly connected to the output ends of the two first electric push rods. Two fixed clamping plates are fixedly connected to the top of the cutting bracket. An arc-shaped notch is opened on the opposite side of the adjacent movable clamping plates and fixed clamping plates. Two guide strips are fixedly connected to the top of the cutting bracket, and guide blocks are slidably connected to the outer sides of the two guide strips. The two guide blocks are respectively fixedly connected to the bottom ends of the two movable clamping plates.
[0008] Preferably, the electric cutting mechanism includes a base, the top end of the cutting bracket is fixedly connected to the base, the top end of the base is hinged to an electric cutting machine, the front end of the column is hinged to a second electric push rod, and the output end of the second electric push rod is hinged to the electric cutting machine.
[0009] Preferably, the limiting mechanism includes a limiting seat, the top end of the cutting bracket is fixedly connected to the limiting seat, the top end of the limiting seat is fixedly connected to the limiting block, an L-shaped elastic sheet is inserted into the inner side of the limiting block, and a limiting baffle is fixedly connected to the left end of the L-shaped elastic sheet.
[0010] (III) Beneficial Effects Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This utility model incorporates a limiting mechanism that ensures all subsequent tubes have the same length as the first one, guaranteeing production quality. The limiting mechanism also acts as a stop for the tubes, preventing them from being ejected due to the electric cutting mechanism during the cutting process. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adjustable clamping mechanism of this utility model; Figure 3 This is a schematic diagram of the fixed clamping mechanism of this utility model; Figure 4 This is a schematic diagram of the electric cutting mechanism of this utility model; Figure 5 This is a schematic diagram of the limiting mechanism of this utility model.
[0012] In the diagram: 1. Cutting bracket; 2. Adjustable clamping mechanism; 21. Slide rail; 22. Slide bar; 23. Connecting plate; 24. Fixed end; 25. Cylinder; 26. Clamping end; 27. Linear module; 3. Fixed clamping mechanism; 31. First electric push rod; 32. Moving clamping plate; 33. Fixed clamping plate; 34. Arc-shaped notch; 35. Guide bar; 36. Guide block; 4. Column; 5. Electric cutting mechanism; 51. Base; 52. Electric cutting machine; 53. Second electric push rod; 6. Limiting mechanism; 61. Limiting seat; 62. Limiting block; 63. L-shaped elastic sheet; 64. Limiting baffle. Detailed Implementation
[0013] 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.
[0014] In the embodiments, by Figure 1-5 A cutting device for heat exchanger production is provided, comprising a cutting bracket 1, an adjustable clamping mechanism 2 and a fixed clamping mechanism 3 at the top of the cutting bracket 1, a column 4 fixedly connected to the top of the cutting bracket 1, an electric cutting mechanism 5 for cutting heat exchanger tubes on the column 4, and a limiting mechanism 6 for limiting the heat exchanger tubes at the top of the cutting bracket 1.
[0015] With the above setup, the operator places the long heat exchanger tube to be cut horizontally on the cutting support 1. One end of the tube is placed in the fixed clamping mechanism 3 and initially clamped, while the other end extends to the adjustable clamping mechanism 2. Depending on the length of the tube to be cut, the position of the adjustable clamping mechanism 2 is moved or adjusted to securely clamp the other end of the tube. Simultaneously, the fixed clamping mechanism 3 and the adjustable clamping mechanism 2 are activated to firmly fix the entire tube on the cutting support 1, ensuring that the tube will not rotate, move, or vibrate during cutting. The operator uses the limiting mechanism 6 to hold the heat exchanger tube in place according to the required cutting length. This mechanism ensures that the cutting length of each tube is consistent and is crucial for achieving precise batch cutting. The electric cutting mechanism 5 is activated, rotating at high speed and feeding smoothly and evenly to complete a single cut. After cutting, the electric cutting mechanism 5 is raised and reset. The adjustable clamping mechanism 2 and the fixed clamping mechanism 3 are released, and the operator removes the heat exchanger tube that has been cut to the specified length. The next long tube to be cut is placed in, and the above steps are repeated for continuous operation. The limiting mechanism 6 ensures that the length of all subsequent tubes is the same as the first one, thus guaranteeing production quality. The limiting mechanism 6 also serves to hold the tube in place, preventing it from being ejected due to the influence of the electric cutting mechanism 5 during the cutting process.
[0016] Reference Figure 1-5 The adjustable clamping mechanism 2 includes a slide rail 21. Two slide rails 21 are fixedly connected to the top of the cutting bracket 1. Slide bars 22 are slidably connected to the inner side of each slide rail 21. The top of each slide bar 22 is fixedly connected to a connecting plate 23. A fixed end 24 is fixedly connected to the top of the connecting plate 23. A cylinder 25 is fixedly connected to the top of the connecting plate 23. A clamping end 26 is fixedly connected to the output end of the cylinder 25. A linear module 27 is provided at the top of the cutting bracket 1. The moving end of the linear module 27 is connected to the connecting plate 23. With the above structural setup, cylinder 25 is in a retracted state, and its driven clamping end 26 separates from the fixed end 24, forming an open clamping port. The linear module 27 may be in a default position. The operator starts the linear module 27 according to the length of the long pipe to be cut. The moving end of the linear module 27 begins to move precisely, driving the connected plate 23 to slide along the slide rail 21. The connected plate 23 engages with the slide rail 21 through two bottom slide bars 22, ensuring the smoothness and straightness of the entire movement process, preventing deviation or jamming. When the fixed end 24 moves to a position suitable for clamping the other end of the pipe, the linear module 27 stops. The operator places one end of the long pipe into the fixed clamping mechanism 3 and clamps it. The other end of the pipe is inserted into the opening between the fixed end 24 and the clamping end 26 of the adjustable clamping mechanism 2. After the position is adjusted, the operator starts cylinder 25. The output end of cylinder 25 extends forward, pushing the clamping end 26 towards the fixed end 24. The clamping end 26 and the fixed end 24 work together to firmly clamp the pipe in the middle like a vise, providing uniform and sufficient clamping force. At this time, both ends of the pipe are firmly fixed by the fixed clamping mechanism 3 and the adjustable clamping mechanism 2, respectively, and the entire pipe is suspended and stably clamped on the cutting bracket 1, ready for precise cutting. After cutting, the cylinder 25 retracts first, driving the clamping end 26 to retract and release the pipe. After the operator removes the cut pipe, the linear module 27 can automatically or manually drive the connecting plate 23 to slide back to the initial position, waiting for the next cycle.
[0017] Reference Figure 1-5 The fixed clamping mechanism 3 includes a first electric push rod 31. Two first electric push rods 31 are fixedly connected to the top of the cutting bracket 1. The output ends of the two first electric push rods 31 are fixedly connected to movable clamping plates 32. Two fixed clamping plates 33 are fixedly connected to the top of the cutting bracket 1. An arc-shaped notch 34 is opened on the opposite side of the adjacent movable clamping plates 32 and fixed clamping plates 33. Two guide bars 35 are fixedly connected to the top of the cutting bracket 1. Guide blocks 36 are slidably connected to the outer side of the two guide bars 35. The two guide blocks 36 are respectively fixedly connected to the bottom ends of the two movable clamping plates 32. With the above structural arrangement, the first electric push rod 31 is normally in the extended state, so the moving clamp 32 it drives is separate from the fixed clamp 33, forming an open "V"-shaped inlet, which facilitates the operator to insert the pipe. The operator places one end of the long heat exchange tube as the reference end into the arc-shaped notch 34 of the two fixed clamps 33. At this time, the pipe is temporarily supported by the fixed clamps 33. The control switch is activated, and the two first electric push rods 31 move simultaneously, and their output ends begin to retract. The retraction force of the electric push rod is directly transmitted to the moving clamp 32, causing it to slide smoothly along the guide bar 35 towards the fixed clamp 33. As the arc-shaped notches 34 on the moving clamp 32 and the fixed clamp 33 gradually approach each other, they clamp the pipe together. Because the notches are arc-shaped, they can automatically guide the center of the pipe to align, achieving self-centering clamping and ensuring that the pipe will not shift due to the clamping force. The cooperation of guide bar 35 and guide block 36 ensures that the moving clamping plate 32 can only move horizontally and linearly, preventing it from tilting or twisting during clamping and ensuring the stability and reliability of the clamping. When the first electric push rod 31 retracts to its final position, the moving clamping plate 32 and the fixed clamping plate 33 firmly clamp the pipe in the middle. At this time, the reference end of the pipe is completely fixed, providing a solid foundation for the subsequent clamping and cutting of the adjustable clamping mechanism 2. After cutting, the adjustable clamping mechanism 2 releases first. After receiving a signal, the output end of the first electric push rod 31 extends, pushing the moving clamping plate 32 backward along the guide bar 35, opening the clamping port. The operator can then easily remove the cut pipe.
[0018] Reference Figure 1-5 The electric cutting mechanism 5 includes a base 51, the top of the cutting bracket 1 is fixedly connected to the base 51, the top of the base 51 is hinged to the electric cutting machine 52, the front end of the column 4 is hinged to the second electric push rod 53, and the output end of the second electric push rod 53 is hinged to the electric cutting machine 52. With the above structural configuration, the electric cutting machine 52 (typically a handheld cutting machine, including a motor and cutting blade) is in the raised position, with its cutting blade away from the heat exchange tube below. The second electric push rod 53 is in the retracted state. After the heat exchange tube is firmly fixed by the adjustable clamping mechanism 2 and the fixed clamping mechanism 3, the operator issues a cutting command. The second electric push rod 53 starts, and its output end begins to extend slowly and uniformly. Since the output end of the push rod is hinged to the body of the electric cutting machine 52, and the body of the cutting machine is hinged to the support through the base 51, the extension movement of the push rod is transformed into an arc-shaped downward pressing action. The electric cutting machine 52 rotates downward around the hinge point of the base 51, causing the high-speed rotating cutting blade to gradually approach and finally contact the clamped heat exchange tube. Under the continuous push of the second electric push rod 53, the rotating cutting blade cuts the tube with a constant feed force. This arc-shaped feed trajectory has a natural advantage: the cutting blade starts cutting into the tube from the upper side, gradually moving downward and to the other side, eventually completely cutting off the tube. This process is smoother, involves less resistance, and produces better cutting results than pure vertical downward pressure. Once the cutting blade has completely pierced the pipe and the cut is complete, the second electric push rod 53 immediately reverses, and its output end rapidly retracts. The retracting push rod pulls the electric cutter 52, causing it to rotate upwards around the hinge point of the base 51, lifting the cutting blade and completely detaching it from the workpiece, returning it to its initial standby position. At this point, the clamping mechanism releases, and the operator can remove the cut pipe.
[0019] Reference Figure 1-5 The limiting mechanism 6 includes a limiting seat 61, the top end of the cutting bracket 1 is fixedly connected to the limiting seat 61, the top end of the limiting seat 61 is fixedly connected to the limiting block 62, an L-shaped elastic sheet 63 is inserted into the inner side of the limiting block 62, and a limiting baffle 64 is fixedly connected to the left end of the L-shaped elastic sheet 63. With the above-described structure, the operator places a long heat exchange tube into the clamping mechanism. One end of the tube, typically facing the fixed clamping mechanism 3, is pushed forward along the top of the cutting bracket 1 until the tube end abuts against the vertical surface of the limiting baffle 64, and until the limiting baffle 64 is pushed against the limiting seat 61. At this point, the axial position of the tube is precisely determined. Subsequently, the fixed clamping mechanism 3 and the adjustable clamping mechanism 2 actuate to clamp the tube. The electric cutting mechanism 5 descends to perform the cutting. After cutting, the clamping mechanism releases, and the finished tube is removed. When placing the next long tube, simply push its top end again until it contacts the limiting baffle 64. Because the position of the limiting baffle 64 is fixed, the cutting length of all subsequent tubes is exactly the same as the first one, achieving length consistency in mass production.
[0020] It should 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.
[0021] 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 cutting device for heat exchanger production, characterized in that, The cutting bracket (1) includes an adjustable clamping mechanism (2) and a fixed clamping mechanism (3) at the top of the cutting bracket (1). A column (4) is fixedly connected to the top of the cutting bracket (1). An electric cutting mechanism (5) for cutting heat exchange tubes is provided on the column (4). A limiting mechanism (6) for limiting the heat exchange tubes is provided at the top of the cutting bracket (1).
2. The cutting equipment for heat exchanger production according to claim 1, characterized in that: The adjustable clamping mechanism (2) includes a slide rail (21). The top of the cutting bracket (1) is fixedly connected to two slide rails (21). The inner sides of the two slide rails (21) are slidably connected to slide bars (22). The tops of the two slide bars (22) are fixedly connected to the connecting plate (23). The top of the connecting plate (23) is fixedly connected to a fixed end (24). The top of the connecting plate (23) is fixedly connected to a cylinder (25). The output end of the cylinder (25) is fixedly connected to a clamping end (26). The top of the cutting bracket (1) is provided with a linear module (27). The moving end of the linear module (27) is connected to the connecting plate (23).
3. The cutting equipment for heat exchanger production according to claim 1, characterized in that: The fixed clamping mechanism (3) includes a first electric push rod (31). Two first electric push rods (31) are fixedly connected to the top of the cutting bracket (1). The output ends of the two first electric push rods (31) are fixedly connected to movable clamping plates (32). Two fixed clamping plates (33) are fixedly connected to the top of the cutting bracket (1). An arc-shaped notch (34) is opened on the opposite side of the adjacent movable clamping plates (32) and fixed clamping plates (33). Two guide strips (35) are fixedly connected to the top of the cutting bracket (1). Guide blocks (36) are slidably connected to the outer side of the two guide strips (35). The two guide blocks (36) are fixedly connected to the bottom ends of the two movable clamping plates (32).
4. A cutting device for heat exchanger production according to claim 1, characterized in that: The electric cutting mechanism (5) includes a base (51), the top of the cutting bracket (1) is fixedly connected to the base (51), the top of the base (51) is hinged to an electric cutting machine (52), the front end of the column (4) is hinged to a second electric push rod (53), and the output end of the second electric push rod (53) is hinged to the electric cutting machine (52).
5. A cutting device for heat exchanger production according to claim 1, characterized in that: The limiting mechanism (6) includes a limiting seat (61), the top end of the cutting bracket (1) is fixedly connected to the limiting seat (61), the top end of the limiting seat (61) is fixedly connected to the limiting block (62), the inner side of the limiting block (62) is inserted with an L-shaped elastic sheet (63), and the left end of the L-shaped elastic sheet (63) is fixedly connected to a limiting baffle (64).