Efficient cutting device for metal pipe fittings

Abstract

The utility model provides an efficient cutting device for metal pipe fittings, which relates to the technical field of cutting devices and comprises a cutting table, a continuous cutting mechanism is arranged at the upper end of the cutting table and comprises a first lower V-shaped clamping seat, and a cutting avoiding groove is formed in the upper end of the first lower V-shaped clamping seat. A discharging notch is formed in the front face of one end of the first lower V-shaped clamping base, a fixing support is fixedly connected to the upper end of the cutting table, a first servo electric cylinder is fixedly installed on the rear inner wall of the fixing support, a baffle is fixedly connected to one end of a piston rod of the first servo electric cylinder, and one end of the baffle is movably connected with the inner wall of the cutting receding groove in an inserted mode. Through cooperative use of the continuous cutting mechanism and the automatic feeding mechanism, automatic fixed-distance cutting of metal pipes is achieved, the situation that the metal pipes need to be detached, moved, clamped and fixed again before and after each time of cutting is avoided, and therefore the manual labor force is reduced, and the metal pipe cutting efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a high-efficiency cutting device for metal pipes. Background Technology

[0002] Metal pipe fittings are an important component in the connection pipelines of modern industrial equipment. They have properties such as high temperature resistance, low temperature resistance, aging resistance, and corrosion resistance, and are therefore widely used. In the production and processing of metal pipe fittings, it is necessary to cut the length of the metal pipe fittings to adapt to different usage needs.

[0003] For example, a cutting device for metal pipes disclosed in Chinese patent literature (publication number: CN222002020U) adds a first pipe fixing component and a second pipe fixing component. In use, the metal pipe is placed on the lower clamping plate by passing it between the upper clamping plate and the lower clamping plate. Then, the twisting disc is turned so that the threaded rod engages with the threaded sleeve and moves downward, pushing the upper clamping plate to abut against the upper end of the metal pipe. The metal pipe is clamped by the cooperation of the upper and lower clamping plates. Then, the first nut is turned until it abuts against the adjusting plate, thereby cooperating with the threaded sleeve to fix the threaded rod. This allows the device to flexibly adjust the distance between the upper and lower clamping plates, so as to clamp metal pipes of different diameters and thicknesses.

[0004] However, on large-scale metal pipe production lines, the cutting work is continuous and high-frequency. After each cut, the threaded rod needs to be rotated to move the upper clamping plate away from the metal pipe, and then the next metal pipe to be cut needs to be moved to the cutting position. Finally, the threaded rod needs to be rotated again to move the upper clamping plate to clamp and fix the metal pipe. The whole process is quite cumbersome, which greatly reduces the efficiency of continuous cutting and significantly reduces the efficiency of continuous cutting. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the cumbersome and inefficient cutting process that currently exists when cutting metal tubes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency cutting device for metal pipe fittings includes a cutting table, a continuous cutting mechanism is provided at the upper end of the cutting table, and the continuous cutting mechanism includes a first lower V-shaped clamp, a cutting clearance groove is provided at the upper end of the first lower V-shaped clamp, and a discharge slot is provided on the front of one end of the first lower V-shaped clamp.

[0008] A fixed bracket is fixedly connected to the upper end of the cutting table. A first servo electric cylinder is fixedly installed on the rear inner wall of the fixed bracket. A baffle is fixedly connected to one end of the piston rod of the first servo electric cylinder. One end of the baffle is movably inserted into the inner wall of the cutting clearance groove.

[0009] An automatic feeding mechanism is provided at the lower end of the cutting table.

[0010] Preferably, a second servo electric cylinder is fixedly installed at the upper end of the fixed bracket, one end of the piston rod of the second servo electric cylinder passes through and extends into the interior of the fixed bracket, a lifting plate is fixedly connected to one end of the piston rod of the second servo electric cylinder, and a mounting plate is fixedly connected to the lower end of the lifting plate.

[0011] Preferably, a first servo motor is fixedly mounted on one side of the mounting plate, and a rotating shaft is fixedly mounted on the output shaft of the first servo motor via a coupling. One end of the rotating shaft passes through and extends to the other side of the mounting plate, and a cutting disc is fixedly connected to one end of the rotating shaft.

[0012] Preferably, symmetrically distributed guide plates are fixedly connected to both sides of the lifting plate, and symmetrically distributed movable rods are movably sleeved on the inner wall of the guide plates. The lower ends of the two movable rods are fixedly connected to a first upper V-shaped clamp, and the upper ends of the first upper V-shaped clamp are fixedly connected to symmetrically distributed support springs. One end of each of the two support springs is fixedly connected to the lower end of the guide plate.

[0013] Preferably, the automatic feeding mechanism includes a second servo motor, the upper end of which is fixedly installed with the lower end of the cutting table, and a lead screw is fixedly installed on the output shaft of the second servo motor through a coupling. One end of the lead screw is rotatably connected to a fixed seat through a bearing.

[0014] Preferably, the upper end of the fixed base is fixedly connected to the lower end of the cutting table, the upper end of the cutting table is provided with a stroke groove, the inner wall of the stroke groove is slidably connected with a stroke block, the lower end of the stroke block is fixedly connected with a threaded block, and the inner wall of the threaded block is connected to the external thread of the lead screw.

[0015] Preferably, a movable frame is fixedly connected to the upper end of the stroke block, a second lower V-shaped clamp is fixedly connected to the inner bottom wall of the movable frame, a third servo electric cylinder is fixedly installed at the upper end of the movable frame, one end of the piston rod of the third servo electric cylinder passes through and extends into the interior of the movable frame, and a second upper V-shaped clamp is fixedly connected to one end of the piston rod of the third servo electric cylinder.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the combined use of a continuous cutting mechanism and an automatic feeding mechanism enables automated, distance-based cutting of metal pipes. This avoids the need to disassemble, move, and re-clamp the metal pipes before and after each cutting operation, thereby reducing manual labor and significantly improving the efficiency of metal pipe cutting. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a high-efficiency cutting device for metal pipe fittings provided by this utility model;

[0019] Figure 2 A perspective view of the lead screw structure of a high-efficiency cutting device for metal pipe fittings provided by this utility model;

[0020] Figure 3 Exploded view of the mounting plate structure of a high-efficiency cutting device for metal pipe fittings provided by this utility model;

[0021] Figure 4 A perspective view of the guide plate structure of a high-efficiency cutting device for metal pipe fittings provided by this utility model;

[0022] Figure 5 A perspective view of the first lower V-shaped clamp structure of a high-efficiency cutting device for metal pipes provided by this utility model.

[0023] Legend: 1. Cutting table; 2. First lower V-shaped clamp; 21. Cutting clearance groove; 22. Discharge slot; 23. Fixed bracket; 24. First servo electric cylinder; 25. Baffle; 26. Second servo electric cylinder; 27. Lifting plate; 28. Mounting plate; 29. ​​First servo motor; 210. Rotary shaft; 211. Cutting disc; 212. Guide plate; 213. Movable rod; 214. First upper V-shaped clamp; 215. Support spring; 3. Second servo motor; 31. Lead screw; 32. Fixed seat; 33. Stroke groove; 34. Stroke block; 35. Threaded block; 36. Moving frame; 37. Second lower V-shaped clamp; 38. Third servo electric cylinder; 39. Second upper V-shaped clamp. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a high-efficiency cutting device for metal pipe fittings, including a cutting table 1. The cutting table 1 is made of high-strength, corrosion-resistant steel and is equipped with stable shock-absorbing pads at the bottom. A continuous cutting mechanism is cleverly arranged at the upper end of the cutting table 1. The continuous cutting mechanism includes a first lower V-shaped clamp 2. The first lower V-shaped clamp 2 is made of a tough and wear-resistant alloy material and is precision milled to form a V-shaped groove that fits the shape of the pipe fitting. The upper end of the clamp has a carefully chiseled cutting avoidance groove 21 with a regular groove shape and smooth inner wall, which provides an unobstructed channel for the cutting disc 211 to cut in, effectively avoiding collision interference during the cutting process. A discharge slot 22 is also provided on the front of one end of the first lower V-shaped clamp 2. The size of the discharge slot 22 is designed just right, which can ensure that the cut pipe fitting is discharged smoothly without affecting the overall structural strength. When discharging, the pipe fitting can naturally slide down to the collection area under the action of gravity, which is convenient for subsequent processing.

[0030] The upper end of the cutting table 1 is fixedly connected to a fixed bracket 23 by a robust welding process. The fixed bracket 23 is constructed of heavy metal profiles, with a stable structure, providing solid support for the drive components above. The rear inner wall of the fixed bracket 23 is fixedly installed with bolts to the first servo electric cylinder 24. The first servo electric cylinder 24 serves as a precise displacement control unit and is made of high-precision, high-response-speed industrial-grade product. One end of its piston rod is fixedly connected to a baffle 25 by strong welding. The baffle 25 is made of high-strength steel plate. The gap between one end of the baffle 25 and the inner wall of the cutting clearance groove 21 is extremely small, allowing for precise movable insertion. Before cutting, it provides a reliable positioning reference for the metal pipe and ensures that the starting point of each cut is consistent.

[0031] The lower end of the cutting table 1 conceals an automatic feeding mechanism, which acts like a tireless porter, continuously and accurately delivering the pipe fittings to the cutting area.

[0032] A second servo electric cylinder 26 is bolted to the upper end of the fixed bracket 23. The second servo electric cylinder 26 also possesses excellent performance, capable of quickly and smoothly driving the piston rod to extend and retract. One end of the piston rod of the second servo electric cylinder 26 precisely penetrates and extends into the interior of the fixed bracket 23, achieving close linkage with internal components. A lifting plate 27 is welded to one end of the piston rod of the second servo electric cylinder 26. The lifting plate 27 is made of lightweight yet sufficiently strong aluminum alloy, with a compact design for easy and flexible lifting within the bracket. A mounting plate 28 is welded to the lower end of the lifting plate 27, providing a stable platform for the subsequent installation of cutting components.

[0033] The first servo motor 29 is fixedly mounted on one side of the mounting plate 28 by bolts. The first servo motor 29 is the core source of the entire cutting power. It is a high-power, high-speed motor with precise speed control. Its output shaft is fixedly mounted with a rotating shaft 210 through a high-strength coupling. The coupling can effectively buffer the vibration during motor start-up and operation to ensure stable power transmission. One end of the rotating shaft 210 precisely passes through and extends to the other side of the mounting plate 28, and is rigidly connected to the cutting disc 211. The cutting disc 211 is fixedly connected to the other end of the rotating shaft 210 by welding. The cutting disc 211 is made of ultra-hard alloy material, with a sharp cutting edge and fine grinding, which has a strong cutting ability and can quickly and smoothly cut metal pipes.

[0034] The lifting plate 27 has symmetrically distributed guide plates 212 fixedly connected to both sides by welding. The guide plates 212 are made of straight and smooth metal plates, which provide precise guidance for the lifting of the movable rod 213. The inner wall of the guide plate 212 is fitted with the symmetrically distributed movable rod 213, and the movable rod 213 can slide freely in it. The lower ends of the two movable rods 213 are fixedly connected to the first upper V-shaped clamp 214 by welding. The first upper V-shaped clamp 214 and the first lower V-shaped clamp 2 are made of the same material and have complementary structures. The two can clamp the pipe more stably. The upper end of the first upper V-shaped clamp 214 is fixedly connected to the symmetrically distributed support spring 215 by welding. The support spring 215 is made of high-quality spring steel with a spring coefficient that has been strictly tested. After a fine heat treatment process, the elastic force is guaranteed to be stable and durable. During the cutting process, it can not only buffer the impact force brought by the descent of the cutting disc 211, but also help maintain the clamping force to ensure that the cutting is carried out smoothly.

[0035] The automatic feeding mechanism includes a second servo motor 3, which is installed at the lower end of the cutting table 1 and is securely connected by strong bolts. The upper end of the second servo motor 3 is tightly fitted to the lower end of the cutting table 1. Its output shaft is fixedly mounted with a lead screw 31 through a high-strength coupling. The lead screw 31 is made of high-precision, high-strength threaded screw with a smooth surface and extremely high thread precision, ensuring accurate meshing with the threaded block 35. One end of the lead screw 31 is externally connected to a fixed seat 32 through a high-precision bearing. The bearing is selected with full consideration of load-bearing capacity and rotational flexibility to ensure smooth rotation of the lead screw 31.

[0036] The upper end of the fixed base 32 is welded to the lower end of the cutting table 1, forming a stable overall structure. The upper end of the cutting table 1 is provided with a stroke groove 33 using advanced processing technology. The inner wall of the stroke groove 33 is smooth and straight, providing an excellent guide track for the sliding of the stroke block 34. The stroke block 34 is slidably connected to the inner wall of the stroke groove 33. The stroke block 34 is made of low-friction engineering plastic material with a special polished surface, which fits tightly against the inner wall of the stroke groove 33, allowing it to slide quickly and smoothly within the groove. The lower end of the stroke block 34 is welded to a threaded block 35. The inner wall of the threaded block 35 is tightly connected to the external thread of the lead screw 31. The two work together to achieve precise linear motion conversion, driving the stroke block 34 to move.

[0037] A movable frame 36 is welded to the upper end of the travel block 34. The movable frame 36 uses a lightweight and sturdy metal frame structure for easy movement of the pipe fitting. A second lower V-shaped clamp 37 is welded to the inner bottom wall of the movable frame 36. The second lower V-shaped clamp 37 functions similarly to the first lower V-shaped clamp 2, providing initial support for the pipe fitting. A third servo electric cylinder 38 is bolted to the upper end of the movable frame 36. The third servo electric cylinder 38 is used to precisely control the lifting and lowering of the second upper V-shaped clamp 39. One end of the piston rod of the third servo electric cylinder 38 precisely penetrates and extends into the interior of the movable frame 36, working in conjunction with the internal components. One end of the piston rod of the third servo electric cylinder 38 is welded to the second upper V-shaped clamp 39. The second upper V-shaped clamp 39 cooperates with the second lower V-shaped clamp 37 to firmly fix the pipe fitting inside the movable frame 36, ready for feeding.

[0038] The working process of this utility model:

[0039] Step 1: The operator manually places the metal pipe to be cut on the second lower V-shaped clamp 37. Immediately afterwards, the operator gently pushes the metal pipe so that one end precisely abuts against the baffle 25 connected to the first servo electric cylinder 24 on the fixed bracket 23. Then, the third servo electric cylinder 38 is activated, and the piston rod extends smoothly, driving the second upper V-shaped clamp 39 downward. Together with the second lower V-shaped clamp 37, they work together to firmly clamp and fix the metal pipe, completing the initial loading operation. Then, the first servo electric cylinder 24 receives the PLC program instruction, and the piston rod drives the baffle 25 to retract, causing it to disengage from the cutting clearance groove 21, making room for the movement of the metal pipe.

[0040] Step two, simultaneously, the second servo motor 3 drives the lead screw 31 to rotate precisely according to the preset cutting length parameters, moving the metal pipe firmly held by the second lower V-shaped clamp 37 and the second upper V-shaped clamp 39 a specified distance, accurately delivering the part to be cut to the cutting area. When the metal pipe is in place, the second servo electric cylinder 26 responds quickly, the piston rod extends, and pushes the lifting plate 27 to descend smoothly. During this process, the guide plates 212 on both sides of the lifting plate 27 and the movable rod 213 work together in a precise manner. As the lifting plate 27 moves down, the movable rod 213 guides the first upper V-shaped clamp 214 to descend synchronously, implementing auxiliary limiting on the metal pipe to be cut. The support spring 215 continuously contracts during this process to ensure a stable and orderly cutting process. The first servo motor 29 on one side of the mounting plate 28 runs at high speed, driving the rotating shaft 210 to rotate rapidly, which in turn drives the cutting disc 211 to rotate at high speed. The moment the cutting disc 211 contacts the metal pipe, the cutting operation officially begins. With the powerful cutting force of the cutting disc 211, the metal pipe is gradually cut off.

[0041] Step 3: After completing one cutting task, all components quickly enter the reset and preparation state for the next cycle. The piston rod of the second servo electric cylinder 26 retracts, and the cutting disc 211 rises and resets along with the lifting plate 27, leaving the cutting area. Immediately afterwards, the lead screw 31, driven by the second servo motor 3, drives the remaining metal tube to continue moving and feeding to the preset cutting length, ensuring the consistency of the cutting length, and then cutting again. During feeding, the cut metal tube is pushed to the discharge slot 22, and the tube is smoothly discharged under the action of gravity. When feeding is completed, the stroke block 34 approaches its stroke limit after multiple movements and cannot meet the requirements for the next movement. When material demand is met, the PLC program intelligently controls the process. After the cutting disc 211 completes the cutting, the second servo electric cylinder 26 pauses its upward and reset action, causing its first upper V-shaped clamp 214 to limit the metal tube. At the same time, the second upper V-shaped clamp 39 releases the metal tube from its fixation. Subsequently, the second servo motor 3 drives the lead screw 31 to reverse, causing the moving frame 36 to quickly reset and move back to the initial feeding position. After the reset is completed, the second upper V-shaped clamp 39 fixes the metal tube again, and a new round of feeding and cutting cycle begins. This process repeats continuously, operating automatically throughout the entire process, greatly improving the efficiency of metal tube cutting and effectively meeting the needs of large-scale production and processing.

[0042] 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 high efficiency cutting device for metal pipes comprising a cutting table (1), characterized in that: The upper end of the cutting table (1) is provided with a continuous cutting mechanism, and the continuous cutting mechanism comprises a first lower V-shaped clamping seat (2), the upper end of the first lower V-shaped clamping seat (2) is provided with a cutting avoiding groove (21), and the front end of the first lower V-shaped clamping seat (2) is provided with a discharge notch (22). The upper end of the cutting table (1) is fixedly connected with a fixed support (23), the rear inner wall of the fixed support (23) is fixedly installed with a first servo electric cylinder (24), one end of the piston rod of the first servo electric cylinder (24) is fixedly connected with a baffle (25), and one end of the baffle (25) is movably inserted into the inner wall of the cutting avoiding groove (21). The lower end of the cutting table (1) is provided with an automatic feeding mechanism.

2. A high efficiency cutting device for metal pipes according to claim 1, characterized in that: The upper end of the fixed support (23) is fixedly installed with a second servo electric cylinder (26), one end of the piston rod of the second servo electric cylinder (26) penetrates through and extends into the inside of the fixed support (23), one end of the piston rod of the second servo electric cylinder (26) is fixedly connected with a lifting plate (27), and the lower end of the lifting plate (27) is fixedly connected with a mounting plate (28).

3. A high efficiency cutting device for metal pipe as defined in claim 2 wherein: One side of the mounting plate (28) is fixedly installed with a first servo motor (29), the output shaft of the first servo motor (29) is fixedly installed with a rotating shaft (210) through a shaft coupling, one end of the rotating shaft (210) penetrates through and extends to the other side of the mounting plate (28), and one end of the rotating shaft (210) is fixedly connected with a cutting disc (211).

4. A high efficiency cutting device for metal pipe as defined in claim 2 wherein: The two sides of the lifting plate (27) are fixedly connected with symmetrically distributed guide plates (212), the inner walls of the guide plates (212) movably sleeve the symmetrically distributed movable rods (213), the lower ends of the two movable rods (213) are fixedly connected with first upper V-shaped clamping seats (214), the upper ends of the first upper V-shaped clamping seats (214) are fixedly connected with symmetrically distributed supporting springs (215), and one end of each of the two supporting springs (215) is fixedly connected with the lower end of the guide plate (212).

5. A high efficiency cutting device for metal pipe as defined in claim 1 wherein: The automatic feeding mechanism comprises a second servo motor (3), the upper end of the second servo motor (3) is fixedly installed with the lower end of the cutting table (1), the output shaft of the second servo motor (3) is fixedly installed with a lead screw (31) through a shaft coupling, and one end of the lead screw (31) is rotatably connected with a fixed seat (32) through a bearing.

6. A high efficiency cutting device for metal pipe as defined in claim 5 wherein: The upper end of the fixed seat (32) is fixedly connected with the lower end of the cutting table (1), the upper end of the cutting table (1) is provided with a stroke groove (33), the inner wall of the stroke groove (33) is slidably connected with a stroke block (34), the lower end of the stroke block (34) is fixedly connected with a threaded block (35), and the inner wall of the threaded block (35) is threadedly connected with the outer portion of the lead screw (31).

7. A high efficiency cutting device for metal pipe as defined in claim 6 wherein: The upper end of the travel block (34) is fixedly connected with a moving frame (36), the inner bottom wall of the moving frame (36) is fixedly connected with a second lower V-shaped clamping base (37), the upper end of the moving frame (36) is fixedly installed with a third servo electric cylinder (38), one end of the piston rod of the third servo electric cylinder (38) penetrates and extends to the inside of the moving frame (36), and one end of the piston rod of the third servo electric cylinder (38) is fixedly connected with a second upper V-shaped clamping base (39).

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