Pipe sawing device

Abstract

This utility model relates to a pipe sawing device, including a sawing mechanism and a pipe clamping mechanism mounted on a frame. The sawing mechanism includes two sawing components that slide relative to each other, located above the frame. The pipe clamping mechanism is located below the frame and has two clamping arms and a liftable guide block. Two guide grooves are symmetrically arranged on the guide block, and the lower end of each clamping arm is slidably connected to the guide groove on the same side. The lifting and lowering of the guide block causes the two clamping arms to close or separate. This utility model overcomes the shortcomings of existing technologies, such as slow speed, low cutting efficiency, high maintenance costs, and large footprint. It utilizes a smaller saw blade to cut pipes of various diameters, exhibiting strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, and in particular to a pipe sawing device. Background Technology

[0002] At construction sites, pipe fitting installation areas require sawing tools to cut the pipes according to construction needs. When conventional cold saws cut pipe fittings, a large-sized saw blade is typically used to cut all the way through. Especially when sawing large-sized pipe fittings, additional saw blades or band saws are often used. These sawing tools are slow, have low cutting efficiency, high maintenance costs, and occupy a large space. Utility Model Content

[0003] The purpose of this utility model is to provide a pipe sawing device that overcomes the shortcomings of existing technologies, such as slow speed, low cutting efficiency, high maintenance cost, and large footprint.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A pipe sawing device includes a frame, and a sawing mechanism and a pipe clamping mechanism disposed on the frame. The sawing mechanism includes two sawing assemblies that slide relative to each other above the frame, each sawing assembly including a saw blade and a saw blade driving component. The pipe clamping mechanism is disposed below the frame and includes a pipe clamping bracket, two clamping arms symmetrically pivotally connected to the upper part of the pipe clamping bracket, a guide block, and a guide block driving component for driving the guide block to rise / fall in the pipe clamping bracket. The guide block is disposed below the clamping arms, and two guide grooves are symmetrically arranged on the guide block. The lower end of each clamping arm is slidably connected to the guide groove on the same side. The guide block driving component is connected to the bottom of the guide block.

[0005] A slide rail is installed on the top of the frame, and two sawing components are slidably connected to the slide rail; the two sawing components are screwed onto a reverse lead screw, which is connected to a servo motor. The servo motor drives the reverse lead screw to rotate in the forward / reverse direction, thereby driving the two sawing components to move closer / separate.

[0006] The two guide slots of the guide block are arranged in a figure-eight shape. The upper ends of the two guide slots are located in the middle of the guide block. From top to bottom, the two guide slots extend downward and outward in an arc shape and move away from each other. Each clamping arm includes a clamping part, a pivoting part, and a guiding part; the clamping arm is pivotally connected to the clamping tube support via the pivoting part; The guide parts of the two clamping arms are slidably connected to the guide grooves on the same side. When the guide block rises, the two guide parts slide from the inside to the outside along the guide grooves, thereby causing the two clamping parts to move closer to each other. When the guide block falls, the two guide parts slide from the outside to the inside along the guide grooves, thereby causing the two clamping parts to separate from each other.

[0007] Each clamping part is equipped with a roller at its top.

[0008] The clamping support is also equipped with an auxiliary clamping arm, which is located between the pivot joints of the two clamping arms.

[0009] The auxiliary clamping arm is equipped with rollers.

[0010] The sawing mechanism and the pipe clamping mechanism are located on the same side of the frame; the guide block drive component is a hydraulic cylinder.

[0011] Pipe support rollers are installed, and the pipe support rollers, sawing mechanism, and pipe clamping mechanism are respectively located on both sides of the machine frame.

[0012] The advantages of this utility model are: 1. Small saw blade diameter, easy to replace, and low maintenance cost; 2. Dual sawing components feed simultaneously, resulting in fast cutting speed; 3. The sawing device of this utility model is designed to cut through the wall thickness of a single side of the pipe fitting. It uses a smaller diameter saw blade and dual sawing components feed simultaneously from opposite sides of the pipe fitting. After cutting through one side of the pipe fitting, the pipe fitting rotates 30°-140° to cut it off completely, abandoning the cutting method of cutting all the way through in the existing technology; 4. The sawing device of this utility model has a small saw blade diameter, which allows for a second feed after the pipe fitting is cut, to trim the burrs on the cut; 5. The sawing device of this utility model can saw pipe fittings of various diameters and can also be used with pipe fitting conveying devices of different lengths, making it highly adaptable and cost-effective. Attached Figure Description

[0013] Figure 1 The structure of this utility model is simple. Figure 1 ; Figure 2 The structure of this utility model is simple. Figure 2 ; Figure 3 The structure of this utility model is simple. Figure 3 ; Figure 4 This is a simplified structural diagram of the tube clamping mechanism in this utility model; In the diagram: 1-Frame; 11-Slide rail; 2-Sawing mechanism; 21-Saw blade; 22-Saw blade drive component; 3-Pipe clamping mechanism; 31-Pipe clamping bracket; 32-Clamping arm; 321-Clamping part; 322-Pivot part; 323-Guide part; 33-Guide block; 331-Guide groove; 34-Guide block drive component; 35-Roller; 36-Auxiliary clamping arm; 4-Reverse screw; 5-Servo motor; 6-Pipe fitting; 7-Pipe fitting support roller. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0015] To simplify the description of this embodiment, some components that are well-known to those skilled in the art but are not related to the main content of this invention may be omitted in the accompanying drawings or description. Additionally, for ease of description, some components in the drawings may be omitted, enlarged, or reduced, but these do not represent the actual product dimensions or the complete structure.

[0016] This utility model discloses a pipe sawing device, which is used in conjunction with a pipe conveying device, such as... Figure 1-4 As shown, it includes a frame 1, and a sawing mechanism 2 and a pipe clamping mechanism 3 disposed on the frame 1.

[0017] Preferably, the sawing mechanism 2 and the pipe clamping mechanism 3 are located on the same side of the frame 1.

[0018] The sawing mechanism 2 includes two sawing components that slide relative to each other and are disposed above the frame 1. A slide rail 11 is disposed above the frame 1, and the two sawing components are slidably connected to the slide rail 11. The two sawing components are screwed to both ends of a reverse lead screw 4. The reverse lead screw 4 is connected to a servo motor 5. The servo motor 5 drives the reverse lead screw 4 to rotate in the forward / reverse direction, thereby driving the two sawing components to move closer to each other / separate.

[0019] like Figure 1-3 As shown, each sawing assembly includes a saw blade 21 and a saw blade drive component 22; the pipe clamping mechanism 3 is located below the frame 1 and includes a pipe clamping bracket 31, two clamping arms 32 symmetrically pivotally connected to the upper part of the pipe clamping bracket 31, a guide block 33, and a guide block drive component 34 that drives the guide block 33 to rise / fall in the pipe clamping bracket 31.

[0020] like Figure 4 As shown, each clamping arm 32 includes a clamping part 321, a pivoting part 322, and a guiding part 323; the clamping arm 32 is pivotally connected to the clamping tube support 31 through the pivoting part 322; The guide block 33 is located below the clamping arm 32, and two guide grooves 331 are symmetrically arranged on the guide block 33. The lower ends of the two clamping arms 32 are slidably connected to the guide grooves 331 on the same side. The guide block driving component 34 is connected to the bottom of the guide block 33. The guide block driving component 34 is generally a hydraulic cylinder.

[0021] Two guide grooves 331 are arranged in a figure-eight shape on the guide block 33. The upper ends of the two guide grooves 331 are located in the middle of the guide block 33. From top to bottom, the two guide grooves 331 extend downward and outward in an arc shape and move away from each other. The guide parts 323 of the two clamping arms 32 are slidably connected to the guide grooves 331 on the same side. When the pipe 6 is transported to the sawing position, the guide block driving component 34 drives the guide block 33 to rise. The two guide parts 323 slide from the inside to the outside along the guide grooves 331, thereby driving the two clamping parts 321 to move closer to each other and clamp the pipe 6. The servo motor 5 drives the reverse lead screw 4 to rotate in the forward direction. The two sawing mechanisms 2 move closer to each other. At the same time, the saw blade driving component 22 drives the saw blade 21 to rotate. When the saw blade 21 abuts against the outer wall of the pipe 6, it begins to cut the pipe 6. After the outer wall of the pipe 6 is cut through at the current position, the pipe 6 conveying device will rotate the pipe 6. The pipe 6 is cut off during the rotation.

[0022] After the pipe 6 is cut, the saw blade 21 stops working, the servo motor 5 drives the reverse screw 4 to rotate in the opposite direction, the two sawing mechanisms 2 separate from each other, the guide block drive component 34 drives the guide block 33 to descend, the two guide parts 323 slide from the outside to the inside along the guide groove 331, thereby driving the two clamping parts 321 to separate from each other, releasing the pipe 6, the pipe 6 can continue to be conveyed forward to start the next section of cutting, or the cut pipe 6 can be transferred.

[0023] Because the sawing process involves the pipe 6 rotating while being sawed, each clamping part 321 is equipped with a roller 35 at its top to ensure that the rotation of the pipe 6 is unimpeded. The surface of the roller 35 is often made of rubber, which increases friction and the relatively soft rubber material can protect the surface of the pipe 6 from damage.

[0024] Furthermore, to maintain the stability of the pipe fitting 6 during clamping, the pipe clamping support 31 is also equipped with an auxiliary clamping arm 36, which is located between the pivot joints 322 of the two clamping arms 32. The auxiliary clamping arm 36 is also equipped with rollers 35. In this way, when the pipe fitting 6 enters the cutting position, it is clamped by the two clamping arms 32 on the left and right and the auxiliary clamping arm 36 below, greatly improving its stability.

[0025] To further ensure that the position of pipe fitting 6 does not shift when it is cut, such as Figure 3 As shown, a pipe support roller 7 is provided. The pipe support roller 7 works in conjunction with the pipe conveying device to ensure that the pipe 6 does not move up and down during processing, which greatly helps to maintain processing accuracy. The pipe support roller 7, the sawing mechanism 2, and the pipe clamping mechanism 3 are respectively set on both sides of the frame 1. The pipe support roller 7 is set on the side where the pipe 6 is conveyed in.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made within the scope of the claims of this utility model should be considered within the technical scope of this utility model.

Claims

1. A pipe sawing device, comprising a frame (1), and a sawing mechanism (2) and a pipe clamping mechanism (3) disposed on the frame (1); characterized in that: The sawing mechanism (2) includes two sawing components that slide relative to each other and are located above the frame (1). Each sawing component includes a saw blade (21) and a saw blade driving component (22). The pipe clamping mechanism (3) is located below the frame (1) and includes a pipe clamping bracket (31), two clamping arms (32) symmetrically pivoted on the upper part of the pipe clamping bracket (31), a guide block (33), and a guide block driving component (34) that drives the guide block (33) to rise / fall on the pipe clamping bracket (31). The guide block (33) is located below the clamping arms (32), and two guide grooves (331) are symmetrically arranged on the guide block (33). The lower end of each clamping arm (32) is slidably connected to the guide groove (331) on the same side. The guide block driving component (34) is connected to the bottom of the guide block (33).

2. The pipe sawing device according to claim 1, characterized in that: A slide rail (11) is provided above the frame (1), and two sawing components are slidably connected to the slide rail (11). The two sawing components are screwed to both ends of a reverse screw (4), and the reverse screw (4) is connected to a servo motor (5). The servo motor (5) drives the reverse screw (4) to rotate in the forward / reverse direction, thereby driving the two sawing components to move closer / separate.

3. The pipe sawing device according to claim 1, characterized in that: Two guide grooves (331) are arranged in a figure-eight shape on the guide block (33). The upper ends of the two guide grooves (331) are located in the middle of the guide block (33). From top to bottom, the two guide grooves (331) extend downward and outward in an arc and move away from each other. Each clamping arm (32) includes a clamping part (321), a pivoting part (322), and a guiding part (323); the clamping arm (32) is pivotally connected to the clamping tube support (31) via the pivoting part (322); The guide parts (323) of the two clamping arms (32) are slidably connected to the guide grooves (331) on the same side. When the guide block (33) rises, the two guide parts (323) slide from the inside to the outside along the guide grooves (331), thereby causing the two clamping parts (321) to move closer to each other. When the guide block (33) falls, the two guide parts (323) slide from the outside to the inside along the guide grooves (331), thereby causing the two clamping parts (321) to separate from each other.

4. The pipe sawing device according to claim 3, characterized in that: Each clamping part (321) is provided with a roller (35) at its top.

5. The pipe sawing device according to claim 1, characterized in that: The clamping support (31) is also provided with an auxiliary clamping arm (36), which is located between the pivots (322) of the two clamping arms (32).

6. The pipe sawing device according to claim 5, characterized in that: The auxiliary clamping arm (36) is equipped with rollers (35).

7. The pipe sawing device according to claim 1, characterized in that: The sawing mechanism (2) and the pipe clamping mechanism (3) are located on the same side of the frame (1); the guide block drive component (34) is a hydraulic cylinder.

8. The pipe sawing device according to claim 1, characterized in that: Pipe support rollers (7) are provided, and the pipe support rollers (7), sawing mechanism (2), and pipe clamping mechanism (3) are respectively located on both sides of the frame (1).

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