Cutting device for copper tubes

Abstract

This utility model discloses a copper tube cutting device, including a U-shaped frame and a support connected to one end. A sliding component is provided on the support, and a cutting blade is connected to the movable end of the sliding component. The cutting blade is located inside the U-shaped frame. An arc-shaped plate is fixed on the side wall of the U-shaped frame, and an arc-shaped plate is slidably disposed on the side of the arc-shaped plate away from the U-shaped frame. The arc-shaped plate is concentric with the arc-shaped plate. A fixing block is provided on the side of the arc-shaped plate away from the arc-shaped plate. A threaded rod is screwed onto the fixing block. One end of the threaded rod is connected to a base plate. A parting clamp is provided on the side of the base plate away from the threaded rod. Traditionally, copper tubes are cut manually by hand. During the cutting process, the operator's movements will cause some vibration, which can easily cause some deviation during cutting, resulting in deviation of the copper tube. This utility model can reduce the deviation of the cutting blade during cutting.

Description

Technical Field

[0001] This utility model relates to the technical field of copper pipe cutting equipment, and in particular to a copper pipe cutting device. Background Technology

[0002] Copper pipe, also known as red copper pipe, is a type of non-ferrous metal pipe. It is a seamless pipe that is pressed and drawn. Copper pipe has good electrical and thermal conductivity. It is the main material for conductive and heat dissipation components of electronic products, and it has become the first choice for the installation of water supply, heating and cooling pipes. Copper pipe has strong corrosion resistance, is not easy to oxidize, and does not easily react chemically with some liquid substances. It is also easy to bend and shape.

[0003] Traditionally, when using copper pipes, to obtain the appropriate length, personnel use handheld pipe cutters to cut the pipes. Handheld pipe cutters generally include a U-shaped frame and a support connected to one end. A sliding component is installed on the support to connect the cutting blade, which is located inside the U-shaped frame. By placing the section of the copper pipe to be cut inside the U-shaped frame and aligning it with the cutting blade, the operator moves the U-shaped frame to rotate the cutting blade around the central axis of the copper pipe. The sliding component gradually pushes the cutting blade against and cuts the copper pipe. The pipe cutter greatly facilitates the cutting and segmentation of copper pipes and improves the efficiency of copper pipe cutting.

[0004] However, when cutting copper pipes manually by hand, the movements of the personnel during the cutting process will cause some shaking, which can easily lead to deviation during the cutting process, thus affecting the cutting effect of the copper pipe. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a copper tube cutting device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a copper tube cutting device, comprising a U-shaped frame and a support connected to one end thereto, a sliding component provided on the support, a cutting blade connected to the movable end of the sliding component, the cutting blade being located inside the U-shaped frame, an arc-shaped plate one fixed on the side wall of the U-shaped frame, an arc-shaped plate two slidably disposed on the side of the arc-shaped plate one away from the U-shaped frame, and the arc-shaped plate two being concentrically disposed with the arc-shaped plate one, a fixing block provided on the side of the arc-shaped plate two away from the arc-shaped plate one, a threaded rod screwed onto the fixing block, a base plate connected to one end of the threaded rod, and a parting clamp provided on the side of the base plate away from the threaded rod.

[0007] Preferably, a bidirectional screw is provided at the lower end of the U-shaped frame along its length. The two ends of the bidirectional screw are connected to a support frame through a connecting plate. Rollers are provided on the support frame. One end of the bidirectional screw is rotatably connected to the inner wall of the U-shaped frame, and the other end is connected to a driving rod. One end of the driving rod passes through the U-shaped frame.

[0008] Preferably, one end of the threaded rod is rotatably connected to the base plate, a guide groove is provided on the fixing block, and a guide plate that is slidably connected to the guide groove is provided on one side of the base plate.

[0009] Preferably, the arc-shaped plate one is provided with a guide strip along its own length on the side away from the U-shaped frame, and the arc-shaped plate two is provided with a sliding groove that is slidably connected to the guide strip on the side facing the arc-shaped plate one.

[0010] Preferably, the clamping surface of the parting fixture is provided with a friction pad.

[0011] Preferably, a knob is provided at one end of the drive rod that extends out of the U-shaped frame, and a knob is provided at the other end of the threaded rod that is away from the base plate.

[0012] The beneficial effects of this utility model are as follows: By fixing an arc-shaped plate one on the side wall of the U-shaped frame, an arc-shaped plate two is slidably arranged on the arc-shaped plate one, and a fixing block is arranged on the arc-shaped plate two. The fixing block is screwed to a threaded rod, and the threaded rod is connected to the parting clamp through the base plate. The rotating threaded rod pushes the parting clamp to achieve the clamping of the copper tube surface. Compared with the prior art, it can make the parting clamp always apply force along the radial direction of the copper tube, ensuring that the cutting surface of the cutting blade is perpendicular to the axis of the copper tube, and allowing the cutting blade to rotate around the central axis of the copper tube. This eliminates the path deviation caused by hand tremors and reduces the problem of left and right deviation of the cutting when the operator rotates the cutting blade to cut the copper tube.

[0013] Meanwhile, a guide bar is set on the first arc plate and a sliding groove is set on the second arc plate. Compared with simple planar friction sliding, the guide bar and sliding groove structure between the first and second arc plates greatly improves the stability, accuracy and anti-lateral interference ability of the second arc plate sliding on the first arc plate. This makes the cutting blade move more smoothly along the track, with less resistance and less likelihood of jamming or jumping, further reducing the impact of unstable operation by personnel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a part of the mechanism for placing copper tubes on a U-shaped frame, according to one embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram illustrating the inner and outer mechanisms of the U-shaped frame when the parting clamp is attached to the surface of a copper tube, according to one embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram illustrating the internal and external mechanisms of the U-shaped frame after it has been rotated to a certain angle, according to one embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram illustrating the overall structure of the U-shaped frame after it has been rotated 180 degrees, according to one embodiment of this utility model.

[0018] Figure 5 This is an exploded view of the internal and external mechanisms of the U-shaped frame in one embodiment of the present invention.

[0019] Reference numerals: 1. U-shaped frame; 2. Support; 3. Sliding assembly; 4. Cutting blade; 5. Arc plate one; 6. Arc plate two; 7. Fixing block; 8. Threaded rod; 9. Base plate; 10. Parting fixture; 11. Two-way screw; 12. Connecting plate; 13. Support frame; 14. Roller; 15. Driving rod; 16. Guide groove; 17. Guide plate; 18. Guide strip; 19. Sliding groove; 20. Knob one; 21. Knob two. Detailed Implementation

[0020] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0021] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," 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.

[0022] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0023] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figures 1 to 5 As shown, a copper pipe cutting device includes a U-shaped frame 1 and a bracket 2 fixedly connected to its left end. A sliding component 3 is provided on the bracket 2. In this embodiment, the sliding component 3 adopts a technical component commonly used by those skilled in the art. The sliding component 3 includes a threaded rod 8 (not shown in the figure) screwed to the bracket 2 and a positioning rod (not shown in the figure) located at the top of the threaded rod 8. The positioning rod is the movable end of the sliding component 3, and the end away from the threaded rod 8 is used to install the cutting blade 4. The threaded rod 8 and the positioning rod are rotatably connected, so that when the threaded rod 8 rotates, it can push the positioning rod to move horizontally.

[0025] The cutting blade 4 is located inside the U-shaped frame 1. Arc-shaped plates 5 are fixed to each other on the left and right side walls of the U-shaped frame 1. Arc-shaped plates 6 are slidably arranged on the side away from each other of the two sets of arc-shaped plates 5. The arc-shaped plates 5 and 6 are concentrically arranged. At the same time, a guide strip 18 is arranged along its own length on the side of the arc-shaped plate 5 away from the U-shaped frame 1. A sliding groove 19 is arranged on the side of the arc-shaped plate 6 facing the arc-shaped plate 5, which is slidably connected to the guide strip 18. In this embodiment, the arc-shaped plates 5 and 6 have the same length, and the length of each is greater than half of the circumference when they are circular. The purpose is to ensure that the arc-shaped plates 5 and 6 are always in a state of not being separated.

[0026] like Figure 3 As shown, a fixing block 7 is fixed in the middle of the side of the arc plate 6 away from the arc plate 5. A threaded rod 8 is screwed into the middle of the fixing block 7. A base plate 9 is connected to the right end of the threaded rod 8. A parting jig 10 is fixed on the right side of the base plate 9. In this embodiment, a friction pad (not shown in the figure) is provided on the clamping surface of the parting jig 10. The purpose is to increase the contact friction between the parting jig 10 and the surface of the copper tube. A guide groove 16 is provided on the side of the fixing block 7 away from the arc plate 6. A guide plate 17 that is slidably connected to the guide groove 16 is provided on the side of the base plate 9 away from the parting jig 10. A knob 21 is provided on the end of the threaded rod 8 away from the base plate 9 for easy rotation by personnel.

[0027] like Figure 5 As shown, a bidirectional screw 11 is provided at the lower end of the U-shaped frame 1 along its length. The left and right ends of the bidirectional screw 11 are connected to a support frame 13 via a connecting plate 12. The connecting plate 12 is slidably connected to the bidirectional screw 11. Specifically, the connecting plate 12 is sleeved on the outer wall of a slider (not shown in the attached figure) on the bidirectional screw 11. The support frame 13 is U-shaped, and a roller 14 is rotatably arranged inside it. Several sets of rollers 14 are arranged opposite each other and distributed along the height direction of the support frame 13. The right end of the bidirectional screw 11 is rotatably connected to the inner wall of the U-shaped frame 1, and its other end is fixedly connected to a driving rod 15. The left end of the driving rod 15 passes through the U-shaped frame 1 and is provided with a knob 20 for easy rotation by personnel.

[0028] When copper pipe needs to be cut, the section of the copper pipe to be cut is moved into the U-shaped frame 1 and aligned with the cutting blade 4. Then, the operator first rotates knob 20, causing the double-ended screw 11 to indirectly drive the rollers 14 on the two sets of support frames 13 to adhere to the left and right sides of the outer wall of the copper pipe, limiting the left and right offset of the copper pipe. Next, knob 21 is rotated, causing the threaded rod 8 to push the base plate 9. The parting clamp 10 on the base plate 9 adheres to one side of the outer wall of the copper pipe and holds the copper pipe in place, reducing the front-to-back offset of the copper pipe. Then, the operator uses the sliding assembly 3 to drive the cutting blade 4 to contact the surface of the copper pipe and begin rotating it around the central axis of the copper pipe. Figures 3 to 4 As shown, after rotating 90 degrees and 180 degrees, the arc plate 5 will be moved, and the arc plate 6 will remain in place due to the friction between the parting jig 10 and the surface of the copper tube, which will reduce the left and right displacement of the cutting blade 4.

[0029] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A copper pipe cutting device, comprising a U-shaped frame (1) and a support (2) connected to one end thereto, wherein a sliding assembly (3) is provided on the support (2), and a cutting blade (4) is connected to the movable end of the sliding assembly (3), the cutting blade (4) being located inside the U-shaped frame (1). characterized in that An arc plate one (5) is fixed on the side wall of the U-shaped frame (1), and an arc plate two (6) is slidably disposed on the side of the arc plate one (5) away from the U-shaped frame (1), and the arc plate two (6) is concentrically disposed with the arc plate one (5); A fixing block (7) is provided on the side of the arc plate two (6) away from the arc plate one (5). A threaded rod (8) is screwed onto the fixing block (7). One end of the threaded rod (8) is connected to a base plate (9). A parting fixture (10) is provided on the side of the base plate (9) away from the threaded rod (8).

2. The cutting device for copper pipes according to claim 1, wherein The lower end of the U-shaped frame (1) is provided with a bidirectional screw (11) along its length. The two ends of the bidirectional screw (11) are connected to a support frame (13) through a connecting plate (12). The support frame (13) is provided with a roller (14). One end of the bidirectional screw (11) is rotatably connected to the inner wall of the U-shaped frame (1), and the other end is connected to a driving rod (15). One end of the driving rod (15) passes through the U-shaped frame (1).

3. The copper tube cutting device according to claim 1, characterized in that, One end of the threaded rod (8) is rotatably connected to the base plate (9), and a guide groove (16) is provided on the fixing block (7). A guide plate (17) that is slidably connected to the guide groove (16) is provided on one side of the base plate (9).

4. The cutting device for copper pipes according to claim 1, wherein The arc plate one (5) is provided with a guide strip (18) along its own length on the side away from the U-shaped frame (1), and the arc plate two (6) is provided with a sliding groove (19) that is slidably connected to the guide strip (18) on the side facing the arc plate one (5).

5. A copper tube cutting device according to claim 1, characterized in that, The clamping surface of the parting fixture (10) is provided with a friction pad.

6. A copper tube cutting device according to claim 2, characterized in that, The drive rod (15) extends out of the U-shaped frame (1) and has a knob (20) at one end. The threaded rod (8) has a knob (21) at the end away from the base plate (9).

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