A folding table steel pipe leg cutting device
By employing a multi-limiting structure and an elastic clamping mechanism in the steel pipe leg cutting device for folding tables, the problem of steel pipe displacement caused by the small clamping surface was solved, thereby improving cutting accuracy and pass rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN NANJING TAIFENG METAL IND CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-31
AI Technical Summary
In existing folding table steel pipe leg cutting devices, the clamping surface of the fixture is a flat or slightly arc-shaped surface, which has a small contact area with the surface of the circular steel pipe and insufficient friction. This causes the steel pipe to easily shift during the cutting process, affecting the cutting accuracy and pass rate.
Multiple arc surfaces are used to compress and limit the steel pipe from the outside. Through the multiple limiting structure of the supporting cylindrical rod and the positioning cylindrical rod, combined with the clamping effect of the elastic pressure rod, the stability of the steel pipe is ensured during the cutting process. The threaded rod can be adjusted to accommodate steel pipes of different diameters.
This effectively prevents the steel pipe from shifting during the cutting process, improves cutting accuracy and pass rate, and ensures the accuracy of the cutting dimensions.
Smart Images
Figure CN224574765U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting steel pipe legs for folding tables, specifically a cutting device for steel pipe legs of folding tables. Background Technology
[0002] Cutting the steel pipe legs of a folding table is a crucial step in the production process. Using an electric cutting machine, a suitable cutting head is selected based on the diameter of the steel pipe. The steel pipe is then fixed in a fixture, the machine is started, and an appropriate cutting speed is selected for cutting. The application of the cutting fixture has a significant impact on the processing quality of the steel pipe.
[0003] For example, the steel pipe cutting device disclosed in patent CN210451160U has a feeding assembly welded to one side of the top surface of the worktable. Rollers are evenly installed inside the mounting opening. Studs penetrate both ends of the baffle, and a push plate is movably installed at one end of each stud. A support plate is welded to the end of the support plate away from the baffle. Clamping assemblies are installed on the top surfaces of both the fixed and movable seats. Clamping tubes are placed inside the mounting groove. Cylinders are installed on the front of both the fixed and movable seats via screws. When a steel pipe is placed on the top surface of the support plate, it slides to the top of the support plate under gravity. Adjusting the position of the push plate changes the number of steel pipes at the top of the rollers, thus pushing the rollers... The steel pipe at the top of the cylinder can be fed into the cutting position, which is convenient, saves time and effort, and can feed multiple steel pipes at once, improving cutting efficiency. The clamping components hold the steel pipe to be cut, which is stable and not easy to loosen, improving the accuracy of cutting steel pipes and making cutting more convenient. However, the clamping surface of ordinary clamps is mostly flat or slightly curved, and there is usually only one line of contact between it and the surface of the round steel pipe. The force-bearing area is small, and the corresponding friction is also small, making it difficult to provide sufficient clamping force. The clamp cannot firmly fix the steel pipe, and the steel pipe is prone to displacement under the action of cutting force, resulting in the actual cutting size not matching the design size, which affects the pass rate of cutting steel pipe legs of folding table.
[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing steel pipe leg cutting device for folding tables. Utility Model Content
[0005] The purpose of this utility model is to provide a cutting device for steel pipe legs of folding tables, in order to solve the problem mentioned in the background art that the clamping surface of ordinary clamps is mostly a flat or slightly arc-shaped surface, and there is usually only one line contact between it and the surface of the circular steel pipe. The force-bearing area is small, and the corresponding friction is also small, making it difficult to provide sufficient clamping force. The clamp cannot firmly fix the steel pipe, and the steel pipe is prone to displacement under the action of cutting force, resulting in the actual cutting size not matching the design size, which affects the qualified rate of cutting steel pipe legs of folding tables.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a folding table steel pipe leg cutting device, comprising a base and a frame fixedly installed on the base, a cutting module slidably installed on the frame, a cutting blade rotatably installed in the cutting module, a top cylinder fixedly installed on the frame, the output end of the top cylinder being fixedly connected to the cutting module; three sets of bases fixedly installed on the base, two sets of supporting cylindrical rods for supporting steel pipe legs being provided above the bases, and two sections of displacement components for the spacing between the two sets of supporting cylindrical rods being provided in the bases; a bottom cylinder fixedly installed on the base, a lifting frame fixedly installed at the output end of the bottom cylinder, a positioning cylindrical rod fixedly installed on the lifting frame, the positioning cylindrical rod being centrally positioned above the two sets of supporting cylindrical rods; a positioning mechanism for reinforcing and limiting the cutting of the steel pipe is provided on the supporting cylindrical rod.
[0007] Preferably, the displacement assembly includes a movable frame slidably mounted in the base, a supporting cylindrical rod fixedly connected to the movable frame, and two sets of movable frames are distributed crosswise.
[0008] Preferably, the base is rotatably connected to a bidirectional threaded rod, and two sets of movable frames are threaded onto both ends of the bidirectional threaded rod.
[0009] Preferably, the positioning mechanism includes a through groove formed on the supporting cylindrical rod, and a spring-loaded pressure rod is slidably connected in the through groove, the spring-loaded pressure rod penetrating vertically through the supporting cylindrical rod.
[0010] Preferably, a guide plate is fixedly installed inside the supporting cylindrical rod, and an elastic pressure rod is slidably connected through the guide plate; a return spring is elastically connected between the elastic pressure rod and the guide plate.
[0011] Preferably, a drive frame is longitudinally slidably connected to the upright frame, and a push rod is rotatably connected to the drive frame, with the push rod rotatably connected to the end face of the elastic pressure rod.
[0012] Preferably, a power frame is fixedly installed on the cutting module, the power frame is engaged and slidably installed on the upright, and a driven frame is also engaged and slidably installed on the upright, with the power frame correspondingly positioned directly above the driven frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the steel pipe leg cutting device for folding tables uses multiple arc surfaces to externally compress and limit the steel pipe, maintaining the stability of the corresponding position of the steel pipe during the cutting process and avoiding cutting deviation.
[0014] The base is equipped with a displacement assembly with two sections and two sets of supporting cylindrical rods. According to the diameter of the round tube, the distance between the two sets of supporting cylindrical rods is adjusted by the threaded transmission of the bidirectional threaded rod and the moving frame to ensure that the two sets of supporting cylindrical rods can effectively support the round tube. Before cutting, the bottom cylinder controls the positioning cylindrical rod to press down on the top of the round tube. Under the multiple limiting of the supporting cylindrical rod and the positioning cylindrical rod, the round tube is stably limited below the cutting blade.
[0015] The supporting cylindrical rod is equipped with a positioning mechanism to reinforce and limit the cutting of the steel pipe. During the cutting process, the cutting module moves downward. Driven by the power frame, driven frame and push rod, the elastic pressure rod can be controlled to move in the direction of the internal movement of the supporting cylindrical rod. The elastic pressure rod moves and presses against the surface of the round tube, further pressing and limiting the position of the round tube during cutting. At the same time, it can buffer the reverse force during cutting, fully maintaining the round tube in a stable state to complete the cutting and improving the cutting accuracy. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the base structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the support frame structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the mobile frame structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the lifting frame structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the cutting module structure of this utility model.
[0021] Figure 6 This is a schematic diagram of the cylindrical rod support structure of this utility model.
[0022] Figure 7 This is a schematic diagram of the elastic pressure bar structure of this utility model.
[0023] In the diagram: 1. Base; 2. Stand; 3. Cutting module; 4. Cutting blade; 5. Top cylinder; 6. Base; 7. Supporting cylindrical rod; 8. Shifting assembly; 81. Moving frame; 82. Bidirectional threaded rod; 9. Bottom cylinder; 10. Lifting frame; 11. Positioning cylindrical rod; 12. Through slot; 13. Elastic pressure rod; 14. Guide plate; 15. Return spring; 16. Drive frame; 17. Push rod; 18. Power frame; 19. Driven frame. Detailed Implementation
[0024] 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.
[0025] Example 1: Please refer to Figures 1-5 This utility model provides the following technical solution: a folding table steel pipe leg cutting device, including a base 1 and a frame 2 fixedly installed on the base 1. A cutting module 3 is slidably installed on the frame 2, and a cutting blade 4 is rotatably installed in the cutting module 3. A top cylinder 5 is fixedly installed on the frame 2, and the output end of the top cylinder 5 is fixedly connected to the cutting module 3. Three sets of bases 6 are fixedly installed on the base 1. Two sets of supporting cylindrical rods 7 for supporting steel pipe legs are set above the bases 6, and two sections of displacement components 8 with a spacing between the two sets of supporting cylindrical rods 7 are set in the bases 6. A bottom cylinder 9 is fixedly installed on the base 1. A lifting frame 10 is fixedly installed at the output end of the bottom cylinder 9. A positioning cylindrical rod 11 is fixedly installed on the lifting frame 10, and the positioning cylindrical rod 11 is centrally located above the two sets of supporting cylindrical rods 7. A positioning mechanism for reinforcing and limiting the cutting of steel pipes is provided on the supporting cylindrical rods 7.
[0026] Please see Figure 2 , Figure 3 and Figure 6 The displacement assembly 8 includes a movable frame 81 slidably mounted in the base 6, a supporting cylindrical rod 7 fixedly connected to the movable frame 81, and two sets of movable frames 81 are distributed crosswise. A bidirectional threaded rod 82 is rotatably connected in the base 6, and the two sets of movable frames 81 are threaded onto both ends of the bidirectional threaded rod 82.
[0027] Before cutting, the distance between the two sets of supporting cylindrical rods 7 is adjusted according to the diameter of the round tube material of the steel tube legs of the folding table. The rotation of the bidirectional threaded rod 82 is manually controlled. Under the threaded transmission, the moving frame 81 is sleeved on the outside of the bidirectional threaded rod 82 and moves in a directional manner. The moving frame 81 drives the supporting cylindrical rod 7 above to move synchronously so that the round tube can be stably placed above the two sets of supporting cylindrical rods 7. Then, the bottom cylinder 9 is operated to control the lifting frame 10 to move downward. The lifting frame 10 drives the positioning cylindrical rod 11 to move down and press against the top of the round tube. The outer surfaces of the positioning cylindrical rod 11 and the supporting cylindrical rod 7 are both arc surfaces, which have good contact with the round tube. Under the multiple limiting action of the positioning cylindrical rod 11 and the supporting cylindrical rod 7, the round tube can be initially limited in the cutting device.
[0028] During the cutting process, the top cylinder 5 controls the cutting module 3 to move downward. The cutting module 3 and the cutting blade 4 are respectively set between the two sets of bases 6. Supporting cylindrical rods 7 and positioning cylindrical rods 11 are set on both sides of the cutting position to keep the cutting position relatively stable. The cutting module 3 drives the cutting blade 4 to move closer to the round tube, so that the cutting blade 4 contacts the surface of the round tube. The motor on the cutting module 3 controls the cutting blade 4 to rotate. During the downward movement and rapid rotation, the cutting blade 4 completes the cutting process of the round tube.
[0029] Example 2: Please refer to Figure 6 and Figure 7 Based on Embodiment 1, a positioning mechanism is also disclosed, the specific structure of which is as follows: The positioning mechanism includes a through groove 12 formed on the supporting cylindrical rod 7, and a spring-loaded pressure rod 13 is slidably connected in the through groove 12, the spring-loaded pressure rod 13 penetrating vertically through the supporting cylindrical rod 7. A guide plate 14 is fixedly installed inside the supporting cylindrical rod 7, and the spring-loaded pressure rod 13 is slidably connected in the guide plate 14; a return spring 15 is elastically connected between the spring-loaded pressure rod 13 and the guide plate 14.
[0030] Please see Figure 2 , Figure 3 and Figure 5 A drive frame 16 is longitudinally slidably connected to the upright frame 2, and a push rod 17 is rotatably connected to the drive frame 16. The push rod 17 is rotatably connected to the end face of the elastic pressure rod 13. A power frame 18 is fixedly installed on the cutting module 3. The power frame 18 is engaged and slidably installed on the upright frame 2, and a driven frame 19 is also engaged and slidably installed on the upright frame 2. The power frame 18 is correspondingly positioned directly above the driven frame 19.
[0031] During the cutting process, the cutting module 3 moves downward, causing the power frames 18 on both sides to move downward synchronously. As the power frames 18 move downward, they approach and press against the driven frame 19, causing the driven frame 19 and the drive frame 16 to move downward. At this time, the push rod 17 connecting the drive frame 16 and the elastic pressure rod 13 rotates at both ends. The rotating push rod 17 pushes the elastic pressure rod 13 through the supporting cylindrical rod 7. The elastic pressure rod 13 passes through the through groove 12 and contacts the outer wall of the cylindrical tube. Simultaneously, during the movement of the elastic pressure rod 13, it presses against the return spring 15. Under the elastic action of spring 15 and spring pressure rod 13, the cutting position of the round tube can be further limited, and the reverse force generated on the round tube during the cutting process can be buffered to keep the round tube in a relatively stable state to complete the cutting operation, thereby improving the cutting accuracy of the round tube. After the cutting is completed, the cutting module 3 and the cutting blade 4 move upward and the power frame 18 and the driven frame 19 move and separate. At this time, under the elastic thrust of the return spring 15, the spring pressure rod 13 moves and resets to the inside of the supporting cylindrical rod 7, and the drive frame 16 and the driven frame 19 move and reset, waiting for the next cutting process.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A folding table steel pipe leg cutting device, comprising a base (1) and a stand (2) fixedly mounted on the base (1), wherein a cutting module (3) is slidably mounted on the stand (2), and a cutting blade (4) is rotatably mounted in the cutting module (3), characterized in that: A top cylinder (5) is fixedly installed on the stand (2), and the output end of the top cylinder (5) is fixedly connected to the cutting module (3); Three sets of bases (6) are fixedly installed on the base (1). Two sets of supporting cylindrical rods (7) supporting steel pipe legs are set above the bases (6), and two sections of displacement components (8) with a spacing of two sets of supporting cylindrical rods (7) are set in the bases (6). A bottom cylinder (9) is fixedly installed on the base (1), and a lifting frame (10) is fixedly installed at the output end of the bottom cylinder (9). A positioning cylindrical rod (11) is fixed on the lifting frame (10), and the positioning cylindrical rod (11) is centrally located above the two sets of supporting cylindrical rods (7). A positioning mechanism for reinforcing and limiting the cutting of steel pipes is provided on the supporting cylindrical rod (7).
2. The folding table steel pipe leg cutting device according to claim 1, characterized in that: The displacement assembly (8) includes a movable frame (81) slidably mounted in the base (6), a supporting cylindrical rod (7) fixedly connected to the movable frame (81), and two sets of movable frames (81) are distributed crosswise.
3. The folding table steel pipe leg cutting device according to claim 2, characterized in that: The base (6) is rotatably connected to a bidirectional threaded rod (82), and two sets of movable frames (81) are threaded onto both ends of the bidirectional threaded rod (82).
4. The folding table steel pipe leg cutting device according to claim 1, characterized in that: The positioning mechanism includes a through groove (12) opened on the supporting cylindrical rod (7), and a spring pressure rod (13) is slidably connected in the through groove (12), the spring pressure rod (13) penetrating vertically through the supporting cylindrical rod (7).
5. A folding table steel tube leg cutting apparatus according to claim 4, characterized in that: The supporting cylindrical rod (7) has a guide plate (14) fixedly installed inside, and the elastic pressure rod (13) is slidably connected in the guide plate (14); A return spring (15) is elastically connected between the elastic pressure rod (13) and the guide plate (14).
6. A folding table steel tube leg cutting apparatus according to claim 5, characterized in that: A drive frame (16) is longitudinally slidably connected to the upright frame (2), and a push rod (17) is rotatably connected to the drive frame (16). The push rod (17) is rotatably connected to the end face of the elastic pressure rod (13).
7. A folding table steel tube leg cutting apparatus according to claim 6, characterized in that: A power frame (18) is fixedly installed on the cutting module (3). The power frame (18) is engaged and slidably installed on the upright frame (2). A driven frame (19) is also engaged and slidably installed on the upright frame (2). The power frame (18) is correspondingly positioned directly above the driven frame (19).