Blade replacing device for pipe cutting machine
By adopting toothed plug-in structure and locking technology in the pipe cutting machine, the problems of slip wire and safety hazards during the blade replacement process are solved, and the stability and efficiency of the replacement process are improved.
Patent Information
- Application Number
- CN202422227699.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing pipe cutting machines are prone to slipping wire problems during the blade replacement process, which leads to safety hazards and the replacement process is cumbersome.
The toothed plug-in structure is used to replace the traditional screw screwing method, connect it to the toothed structure of the cutter plate through the insertion shaft, and lock the cutter plate with clamping teeth and rack to avoid falling off.
It effectively avoids slip wires, improves the stability of blade installation and replacement efficiency, and ensures the safety of the replacement process.
Smart Images
Figure CN223012584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe cutting machines, and particularly relates to a blade replacement device for a pipe cutting machine. Background Technique
[0002] The main function of a pipe cutting machine is to cut tubular materials according to specific lengths or shapes to meet the requirements of subsequent processing or installation. It can achieve precise cutting of pipes according to preset dimensions, ensure that the cut materials meet the design specifications, and can perform rapid and continuous cutting to improve production efficiency. In short, the pipe cutting machine plays an indispensable role in modern industrial production. It not only improves production efficiency and product quality but also helps to reduce costs and enhance the market competitiveness of enterprises.
[0003] However, in the current existing technology, when cutting pipes, the cutting blades will be worn after long-term use. Severely worn blades will affect the quality of pipe cutting. Therefore, the blades of the pipe cutting machine need to be frequently replaced. When replacing and installing the blades, they are generally fixed by screwing and locking with screws. However, the screws used for fixation are at risk of slipping threads after multiple blade replacements, thus posing a safety hazard. And because the tightness requirements for the installation of the fixing screws of the blades are relatively high, tools need to be used for locking, resulting in a cumbersome replacement process. Content of the Utility Model
[0004] The purpose of the utility model is to provide a blade replacement device for a pipe cutting machine to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A blade replacement device for a pipe cutting machine includes a tool rest and a cutter head. A connection component for installing the blade is arranged on the inner wall of the tool rest. The connection component includes a support frame arranged on the inner wall of the tool rest. A plug shaft is arranged on the outer wall of the support frame. Cavities are arranged on both sides of the outer wall of the plug shaft. A rack and a spring are arranged inside both of the two cavities. A through groove is arranged inside the plug shaft. A sliding rod is arranged inside the through groove. A plurality of inclined grooves and connecting rods are arranged on both sides of the outer wall of the sliding rod. A connection frame is arranged inside the cutter head. Tooth-like structures are arranged on both sides of the inner wall of the connection frame.
[0007] As a preferred scheme of the utility model, the support frame is located on the inner wall of the tool rest and is rotatably connected to the inner wall of the tool rest through a driving shaft. The plug shaft is connected to the outer wall of the support frame by welding.
[0008] As a preferred scheme of the utility model, both the plug shaft and the connection frame on the inner wall of the cutter head are tooth-like structures and correspond to each other. The plug shaft can be inserted into the connection frame of the cutter head, and the cutter head and the plug shaft are assembled by inserting through the tooth-like structures.
[0009] As a preferred solution of the present utility model, the two cavities are annularly distributed on both sides of the outer wall of the insertion shaft. One end of the rack is located in the cavity and is slidably connected to the inner wall of the cavity. Both ends of the spring are connected to the inner wall of the cavity and the rack by welding.
[0010] As a preferred solution of the present utility model, the inner wall of the support frame is filled with high-pressure gas and is communicated with the through groove. The through groove is communicated with both cavities through through holes, so that the high-pressure gas can flow into the cavities, and cooperate with the spring to push the rack out of the cavity.
[0011] As a preferred solution of the present utility model, one end of the sliding rod is located in the through groove, and a piston is installed at one end of the through groove and is slidably connected to the inner wall of the through groove. A plurality of the inclined grooves are arrayed in the area of the outer wall of the sliding rod close to both cavities. Both ends of the connecting rod are rotatably connected to the inclined grooves and one end of the rack through damping shafts.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: In response to the problems raised in the background art, the present application adopts a connection component. By setting the connection shaft of the tool rest and the central plug-in of the tool disc as a toothed structure, the toothed structure is used for plugging and replacing the conventional screw screwing fixation, which can avoid the problem of thread slipping and increase the tightness and stability during the connection of the tool disc. At the same time, when plugging, the tool disc can be locked on the insertion shaft through the engagement of the locking teeth and the rack, avoiding the tool disc from falling off during use, ensuring the normal use of the tool disc, and through the plug-in installation method, while ensuring the stable installation of the tool disc, it can quickly replace the blade and improve the replacement efficiency.
[0013] The present utility model replaces the screw screwing method with a toothed plugging structure for blade replacement, avoiding the thread slipping situation after long-term use, and improving the stability of blade installation and the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a three-dimensional view of the overall structure of the present utility model;
[0015] Figure 2 is an external view structure diagram of the insertion shaft of the present utility model;
[0016] Figure 3 is an internal cross-sectional view of the insertion shaft of the present utility model.
[0017] In the figure: 1. Tool rest; 2. Support frame; 3. Insertion shaft; 4. Cavity; 401. Rack; 402. Spring; 5. Through groove; 6. Sliding rod; 601. Inclined groove; 7. Connecting rod; 8. Tool disc; 9. Connecting frame; 901. Locking teeth. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described.
[0019] Embodiment
[0020] Please refer to Figures 1-3 , the present utility model provides a technical solution: a blade replacement device for a pipe cutting machine, including a tool holder 1 and a cutter head 8. A connection component for installing the blade is provided on the inner wall of the tool holder 1. The connection component includes a support frame 2 provided on the inner wall of the tool holder 1, which is used to fix the insertion shaft 3 to the tool holder 1 and is coaxially connected to the drive shaft in the tool holder 1. After the blade is installed, it can drive the blade to rotate to complete cutting (and an injection hole is provided at the top of the support frame 2, through which high-pressure gas can be injected into the interior). An insertion shaft 3 is provided on the outer wall of the support frame 2. The insertion holes of the insertion shaft 3 and the internal connecting frame 9 of the cutter head 8 are both tooth-shaped structures, and the cutter head 8 is installed in a plug-in manner with the insertion shaft 3, which can be quickly loaded and unloaded. After plugging, the tooth-shaped structure can increase the stability of the cutter head 8 and avoid the situation of thread slipping. On both sides of the outer wall of the insertion shaft 3, cavities 4 are provided. In both of the two cavities 4, a rack 401 and a spring 402 are provided. One end of the rack 401 extends out of the cavity 4 and can be engaged with the teeth 901 on the inner wall of the connecting frame 9 when the cutter head 8 is plugged and installed, so as to lock the cutter head 8 through the meshing angle and prevent it from detaching from the tool holder 1 during use (and the high-pressure gas in the support frame 2 can flow into the through groove 5 and be injected into the cavity 4 through the through hole, and cooperate with the spring 402 to support the rack 401 and push it out of the cavity 4). A through groove 5 is provided inside the insertion shaft 3. A sliding rod 6 is provided inside the through groove 5, and the sliding rod 6 can move and expand and contract inside the through groove 5. On both sides of the outer wall of the sliding rod 6, a plurality of inclined grooves 601 and connecting rods 7 are provided. When the sliding rod 6 extends and contracts inside the through groove 5, the connecting rod 7 cooperates with the inclined groove 601 to drive the rack 401 to contract into the cavity 4, so as to disengage from the engagement with the teeth 901, facilitating the disassembly and replacement of the cutter head 8. A connecting frame 9 is provided inside the cutter head 8, and teeth 901 are provided on both sides of the inner wall of the connecting frame 9.
[0021] In this embodiment, all electrical components are controlled by a conventional controller.
[0022] Embodiment, please refer to Figures 1-3, the support frame 2 is located inside the inner wall of the tool rest 1 and is rotatably connected to the inner wall of the tool rest 1 through a drive shaft. The insertion shaft 3 is connected to the outer wall of the support frame 2 by welding. Both the insertion shaft 3 and the connecting frame 9 on the inner wall of the tool disc 8 are tooth-shaped structures and correspond to each other. The insertion shaft 3 can be inserted into the connecting frame 9 of the tool disc 8. Through the tooth-shaped structure, the tool disc 8 and the insertion shaft 3 are inserted and assembled. The two cavities 4 are annularly distributed on both sides of the outer wall of the insertion shaft 3. One end of the rack 401 is located inside the cavity 4 and is slidably connected to the inner wall of the cavity 4. Both ends of the spring 402 are connected to the inner wall of the cavity 4 and the rack 401 by welding. The inner part of the inner wall of the support frame 2 is filled with high-pressure gas and is communicated with the through groove 5. The through groove 5 is communicated with both cavities 4 through through holes, so that the high-pressure gas can flow into the cavity 4, and cooperate with the spring 402 to push the rack 401 to extend out of the cavity 4. One end of the sliding rod 6 is located inside the through groove 5, and a piston is installed at one end of the through groove 5 and is slidably connected to the inner wall of the through groove 5. A plurality of inclined grooves 601 are arrayed on the outer wall of the sliding rod 6 near the two cavities 4. Both ends of the connecting rod 7 are rotatably connected to the inclined groove 601 and one end of the rack 401 through damping shafts. When in use, first, the insertion slot of the connecting frame 9 inside the tool disc 8 is angularly docked with the insertion shaft 3, and then the tool disc 8 and the insertion shaft 3 are inserted and installed. During the insertion, the teeth 901 on the inner wall of the connecting frame 9 are engaged with the rack 401 extending from the insertion shaft 3, so as to fix the tool disc 8. After the fixation, high-pressure gas is injected into the support frame 2 again, and the support for the rack 401 is increased through the increased air pressure to ensure the stability of the installation of the tool disc 8. When replacement is needed, only need to press the sliding rod 6 extending from the front end of the insertion shaft 3 to make it contract inside the insertion shaft 3. At the same time, the connecting rod 7 drives the rack 401 to contract into the cavity 4 and disengage from the teeth 901 obliquely, and then the tool disc 8 can be slid out and removed.
[0023] The working process of the present utility model: When in use, first, the insertion slot of the connecting frame 9 inside the tool disc 8 is angularly docked with the insertion shaft 3, and then the tool disc 8 and the insertion shaft 3 are inserted and installed. During the insertion, the teeth 901 on the inner wall of the connecting frame 9 are engaged with the rack 401 extending from the insertion shaft 3, so as to fix the tool disc 8. After the fixation, high-pressure gas is injected into the support frame 2 again, and the support for the rack 401 is increased through the increased air pressure to ensure the stability of the installation of the tool disc 8. When replacement is needed, only need to press the sliding rod 6 extending from the front end of the insertion shaft 3 to make it contract inside the insertion shaft 3. At the same time, the connecting rod 7 drives the rack 401 to contract into the cavity 4 and disengage from the teeth 901 obliquely, and then the tool disc 8 can be slid out and removed. The present utility model replaces the screw screwing method with a tooth-shaped insertion structure for blade replacement, avoids the thread slipping situation after long-term use, and improves the stability of blade installation and the replacement efficiency.
[0024] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A blade replacement device for a pipe cutting machine, comprising a blade holder (1) and a blade disc (8), wherein the inner wall of the blade holder (1) is provided with a connecting assembly for installing the blade, characterized in that: The connecting assembly comprises a support frame (2) arranged on the inner wall of the tool holder (1); an insert shaft (3) is arranged on the outer wall of the support frame (2); cavities (4) are arranged on both sides of the outer wall of the insert shaft (3); racks (401) and springs (402) are arranged inside the two cavities (4); a through groove (5) is arranged inside the insert shaft (3); a slide bar (6) is arranged inside the through groove (5); a plurality of inclined grooves (601) and connecting rods (7) are arranged on both sides of the outer wall of the slide bar (6); a connecting frame (9) is arranged inside the tool disc (8); and latch teeth (901) are arranged on both sides of the inner wall of the connecting frame (9).
2. A blade replacement device for a pipe cutting machine according to claim 1, characterized in that: The support frame (2) is located on the inner wall of the tool holder (1) and is rotatably connected to the inner wall of the tool holder (1) via a driving shaft, and the insertion shaft (3) is connected to the outer wall of the support frame (2) via welding.
3. A blade replacement device for a pipe cutting machine according to claim 2, characterized in that: The insertion shaft (3) and the connecting frame (9) on the inner wall of the cutter disc (8) are both tooth-shaped structures and correspond to each other. The insertion shaft (3) can be inserted into the connecting frame (9) of the cutter disc (8), and the cutter disc (8) and the insertion shaft (3) are inserted and assembled through the tooth-shaped structure.
4. The blade replacement device for a pipe cutting machine according to claim 1, characterized in that: The two cavities (4) are distributed in an annular manner on both sides of the outer wall of the insertion shaft (3); one end of the rack (401) is located in the cavity (4) and is slidably connected to the inner wall of the cavity (4); and both ends of the spring (402) are connected to the inner wall of the cavity (4) and the rack (401) by welding.
5. The blade replacement device for a pipe cutting machine according to claim 1, characterized in that: The inner wall of the support frame (2) is loaded with high-pressure gas and is in communication with the through groove (5). The through groove (5) is in communication with the cavities (4) on both sides via through holes, so that the high-pressure gas can flow into the cavity (4) and cooperate with the spring (402) to push the rack (401) out of the cavity (4).
6. The blade replacement device for a pipe cutting machine according to claim 1, characterized in that: One end of the slide bar (6) is located in the through groove (5), and a piston is installed at one end of the through groove (5) and is slidably connected to the inner wall of the through groove (5). A plurality of inclined grooves (601) are arrayed on the outer wall of the slide bar (6) near the cavities (4) on both sides. Both ends of the connecting rod (7) are rotatably connected to the inclined grooves (601) and one end of the rack (401) through a damping shaft.