A small-caliber pipe cutting device

Abstract

The present application relates to the field of cutting equipment, and discloses a small-diameter pipe cutting device, which includes a circular saw, a pipe clamping device installed below the circular saw, a lifting device for lifting the pipe clamping device, and a guide rail for the pipe clamping device to slide; the pipe clamping device includes a first fixing plate and a second fixing plate arranged oppositely, a fixing rod penetrating through the first fixing plate and fixedly connected to the second fixing plate at one end is arranged on the first fixing plate, a fixing block is slidably installed on the fixing rod, the fixing block is fixedly connected to the first fixing plate, and a wrench is connected to the fixing block; the second fixing plate can slide on the guide rail, and the lifting device is fixedly connected to the second fixing plate. The present application has the effect of effectively improving the problem that the inner diameter of small-diameter pipe materials is prone to shrinkage after cutting and requires secondary machining and cutting.

Description

Technical Field

[0001] This application relates to the field of cutting equipment, and in particular to a cutting device for micro-diameter pipes. Background Art

[0002] With the development of society, more and more precision instruments have emerged. In precision instruments, the use of micro-diameter pipes is also increasing.

[0003] In related technologies, micro-diameter pipes are usually cut using a pipe cutter. The sharp end of the pipe cutter squeezes the outer wall of the pipe, causing the outer wall of the pipe to deform under pressure and form a circular indentation. By rotating multiple times and continuously applying pressure, the indentation becomes deeper until the metal pipe is cut off.

[0004] Regarding the above related technologies, the inventor believes that during the cutting process of the pipe, the inner diameter of the pipe will shrink, and there is a problem that the cutting surface needs secondary processing, which is time-consuming and laborious, and the working efficiency is relatively low. Summary of the Invention

[0005] In order to effectively improve the problem that the inner diameter of micro-diameter pipes is prone to shrinkage and requires secondary processing after cutting, this application provides a cutting device for micro-diameter pipes.

[0006] The cutting device for micro-diameter pipes provided by this application adopts the following technical solutions:

[0007] A cutting device for micro-diameter pipes, used for cutting micro-diameter pipes, includes a circular saw, a pipe clamping device installed below the circular saw, a lifting device for lifting the pipe clamping device, and a guide rail for the pipe clamping device to slide;

[0008] The pipe clamping device includes a first fixing plate and a second fixing plate arranged opposite to each other. A fixing rod passing through the first fixing plate and fixedly connected to the second fixing plate at one end is provided on the first fixing plate. A fixing block is slidably installed on the fixing rod, and the fixing block is fixedly connected to the first fixing plate. A wrench is connected to the fixing block.

[0009] The second fixing plate can slide on the guide rail, and the lifting device is fixedly connected to the second fixing plate.

[0010] By adopting the above technical solution, before use, pull the wrench. Under the action of the wrench, the fixing block moves along the axis of the fixing rod. Since the fixing block is fixedly connected to the first fixing plate, the first fixing plate is separated from the second fixing plate under the action of the fixing block; the staff can control the distance between the first fixing plate and the second fixing plate by pulling the wrench; after the staff separates the first fixing plate and the second fixing plate, place the pipe between the first fixing plate and the second fixing plate, and pull the wrench again to make the first fixing plate and the second fixing plate approach each other to complete the fixing of the pipe; under the action of the lifting device, the first fixing plate and the second fixing plate drive the pipe to move towards the circular saw, start the circular saw, and the circular saw cuts the pipe; in this process, it is not necessary to rotate and press repeatedly for many times to cut the pipe. The cutting is fast and accurate, which can effectively reduce the possibility of necking, and further effectively reduce the possibility that the cut pipe needs to be machined twice, effectively improving work efficiency.

[0011] Optionally, a sliding rod is connected to the side wall of the fixing block, and a deflecting rod is rotatably connected to the other end of the sliding rod. The deflecting rod is L-shaped, and the sliding rod is rotatably connected to the corner of the deflecting rod;

[0012] The end of the horizontal rod of the deflecting rod away from the corner is rotatably connected to the end of the fixing rod away from the first fixing plate, and the end of the vertical rod of the deflecting rod away from the corner is fixedly connected to the wrench.

[0013] By adopting the above technical solution, under the action of the deflecting rod, the movement of the fixing block is more stable. When pulling the wrench, the steering rod can drive the sliding rod to move along the axis of the fixing rod, and then drive the fixing block to move. Therefore, the first fixing plate is separated from the second fixing plate; at the same time, under the action of the deflecting rod, the fixing block will not slide easily, which can strengthen the stability of the pipe clamping device for fixing the pipe.

[0014] Optionally, the cross section of the fixing block is T-shaped, and a communication hole for the small column of the fixing block to slide is opened in the first fixing plate.

[0015] By adopting the above technical solution, the fixing block can extend into the first fixing plate, which can further enhance the limit of the fixing block, making the fixing block more stable when the first fixing plate and the second fixing plate are in a fitting state, and then making the pipe more stable during the cutting process, effectively enhancing the safety and stability of the device and protecting the safety of the staff; at the same time, during the cutting process, since the circular saw generates a vertically downward pressure when cutting the pipe, the fixing block located in the first fixing plate can be subjected to a squeezing force, and the fixing block will generate a reaction force, and this reaction force squeezes the pipe, which can further restrict the pipe to enhance the stability of the pipe during the cutting process.

[0016] Optionally, mounting holes are formed in the surface of the second fixed plate, fixing bolts are installed in the mounting holes, and threaded holes adapted to the fixing bolts are formed at the ends of the fixing rods.

[0017] By adopting the above technical solution, the pre-tightening force between the fixing bolt and the fixing rod is controllable. Therefore, the tightness of the connection between the fixing rod and the second fixed plate is controllable. Furthermore, the degree of fit between the first fixed plate and the second fixed plate is controllable, and thus the restriction on the pipe is controllable. The staff can control the restriction force during pipe cutting by controlling the pre-tightening force of the fixing bolt.

[0018] Optionally, a clamping device is further included and disposed in the pipe clamping device. The clamping device includes a first clamping module and a second clamping module disposed opposite to each other. A semi-circular notch is formed in the first clamping module, and a semi-circular notch is also formed in the second clamping module. The two semi-circular notches are adapted to each other.

[0019] By adopting the above technical solution, the first clamping module and the second clamping module can further enhance the stability of the pipe. The staff can select clamping devices of different sizes according to the size of the pipe, thereby effectively expanding the application range of the device and enabling the device to cut pipes of many models.

[0020] Optionally, a collecting device is further included. One end of the collecting device near the disk saw has an opening, and the collecting device is fixedly connected to the second fixed plate.

[0021] By adopting the above technical solution, the cut pipes can be collected into the collecting box, which is convenient for the staff to collect and sort out. At the same time, the collecting device can also collect the sawdust generated during the cutting process, which is convenient for the staff to clean up.

[0022] Optionally, a guiding rod is disposed in the second fixed plate. One end of the guiding rod is fixed in the second fixed plate, and the other end extends into the first fixed plate.

[0023] By adopting the above technical solution, during the separation and approach of the first fixed plate and the second fixed plate, the guiding rod can enhance the connection stability between the first fixed plate and the second fixed plate.

[0024] Optionally, a handle is disposed on the surface of the first fixed plate facing away from the second fixed plate.

[0025] By adopting the above technical solution, the handle is more convenient for the staff to pull the first fixed plate. When the wrench fails, the handle can facilitate the staff to quickly separate the first fixed plate and the second fixed plate, reducing the possibility of danger due to the failure.

[0026] Optionally, the end of the handle is detachably connected to the first fixed plate by a bolt.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By providing a disk saw, a pipe clamping device installed below the disk saw, a lifting device for lifting the pipe clamping device, and a guide rail for the pipe clamping device to slide, the pipe can be cut without repeatedly rotating and applying pressure. The cutting is fast and accurate, which can effectively reduce the possibility of diameter reduction and thus effectively improve work efficiency.

[0029] 2. By providing a sliding rod and a deflecting rod, the fixed block will not easily slide, which can effectively enhance the stability of the pipe clamping device for fixing the pipe.

[0030] 3. By providing that the cross-section of the fixed block is T-shaped and a communication hole for the small cylinder of the fixed block to slide is provided in the first fixing plate, the restriction on the fixed block can be further enhanced, making the fixed block more stable when the first fixing plate and the second fixing plate are in a fitting state, and thus making the pipe more stable during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a small-diameter pipe cutting device.

[0032] Figure 2 is Figure 1 a partial enlarged schematic view of part A in

[0033] Figure 3 is a partial cross-sectional view of a small-diameter pipe cutting device.

[0034] Description of the reference numerals: 1, frame; 11, disk saw; 2, pipe; 3, pipe clamping device; 31, first fixing plate; 311, communication hole; 312, fixed block; 313, sliding rod; 314, fixed rod; 315, deflecting rod; 316, connecting rod; 317, wrench; 32, second fixing plate; 321, mounting hole; 322, fixing bolt; 323, guide rod; 33, handle; 4, clamping device; 41, first clamping module; 42, second clamping module; 5, guide rail; 6, collecting device; 7, lifting device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following will Figures 1-3 be further described in detail with reference to the

[0036] The embodiment of the present application discloses a small-diameter pipe cutting device.

[0037] Combined with Figure 1 and Figure 2, A micro-diameter pipe cutting device is used to cut micro-diameter pipes 2, and includes a frame 1, a disk saw 11 fixedly installed on the frame 1, two guide rails 5 oppositely installed on both sides of the frame 1, a pipe clamping device 3 installed on the guide rails 5, a lifting device 7 installed on the frame 1 for lifting the pipe clamping device 3, a clamping device 4 installed on the pipe clamping device 3, and a collecting device 6 installed on the pipe clamping device 3.

[0038] The frame 1 is in a rectangular ring shape, the disk saw 11 is installed at the upper end of the frame 1, the main body of the disk saw 11 is installed on the outer wall surface of the side wall at the upper end of the frame 1, and the saw blade of the disk saw 11 is located outside the side wall at the upper end of the frame 1, which is convenient for cutting the pipe 2.

[0039] The two guide rails 5 are respectively fixed on the outer side walls of the side walls on both sides of the frame 1, and the axis of the guide rail 5 is perpendicular to the axis of the side wall at the upper end of the frame 1.

[0040] Combined Figure 2 and Figure 3 , the pipe clamping device 3 includes a first fixing plate 31, a second fixing plate 32 cooperating with the first fixing plate 31, and a handle 33 installed on the first fixing plate 31. The second fixing plate 32 can slide on the guide rail 5. The handle 33 is fixed on the plate surface of the first fixing plate 31 facing away from the second fixing plate 32. The handle 33 is in a U shape, the opening of the handle 33 faces the plate surface of the first fixing plate 31, and both ends of the handle 33 are fixed on the first fixing plate 31 by bolts.

[0041] Combined Figure 2 and Figure 3 , the first fixing plate 31 is a strip-shaped plate, the axis of the first fixing plate 31 is parallel to the axis of the guide rail 5, the second fixing block plate 31 is the same size as the first fixing plate 31, the first fixing plate 31 and the second fixing block plate 31 are arranged oppositely, and two uniformly sized and communicating notches are respectively opened on the opposite side walls of the first fixing plate 31 and the second fixing block plate 31. The clamping device 4 is installed in the notches. The clamping module includes a first clamping module 41 installed on the first fixing plate 31 and a second clamping module 42 installed on the second fixing plate 32. The second clamping module 42 is used in cooperation with the first clamping module 41. Two uniformly sized and communicating semi-circular notches are respectively opened on the opposite side walls of the first clamping module 41 and the second clamping module 42, and the two notches are used in cooperation. The aperture of the circular hole formed by the two notches is the same as the outer diameter of the pipe 2. During use, the staff can replace different clamping devices 4 according to the size of the pipe 2 to be cut.

[0042] Combined Figure 2 and Figure 3, an installation hole 321 is provided on the side wall of the second fixing plate 32 facing away from the first fixing plate 31, and the axis of the installation hole 321 is perpendicular to the axis of the guide rail 5. A fixing bolt 322 is installed in the installation hole 321. A guide rod 323 for connecting with the first fixing plate 31 is further provided in the second fixing plate 32. The axis of the guide rod 323 is perpendicular to the axis of the second fixing plate 32. One end of the guide rod 323 is fixed in the second fixing plate 32, and the other end extends into the first fixing plate 31.

[0043] A communication hole 311 is provided on the side wall of the first fixing plate 31 opposite to the second fixing plate 32, and a fixing block 312 is installed in the communication hole 311. The fixing block 312 is T-shaped, and the outer diameter of the small column of the fixing block 312 is the same as the aperture of the communication hole 311.

[0044] Combined Figure 2 and Figure 3 , a through hole penetrating the fixing block 312 is provided on the end face of the fixing block 312, a fixing rod 314 is installed in the through hole, the axis of the fixing rod 314 is collinear with the center line of the through hole, and a threaded hole for cooperating with the fixing bolt 322 is provided at one end of the fixing rod 314.

[0045] Two sliding rods 313 are respectively rotatably connected to the opposite side surfaces of the large column of the fixing block 312. A deflecting rod 315 is connected to one end of each sliding rod 313 away from the fixing block 312. The deflecting rod 315 is L-shaped, and the corner of the deflecting rod 315 is rotatably connected to one end of the sliding rod 313 away from the fixing block 312. One end of the horizontal side rod of the deflecting rod 315 away from the corner is rotatably connected to one end of the fixing rod 314 away from the fixing bolt 322.

[0046] Combined Figure 2 and Figure 3 , the other side rod of the deflecting rod 315 is in a vertical state. A connecting rod 316 is connected to one end of the vertical rod of the deflecting rod 315 away from the corner. One ends of the two connecting rods 316 away from the deflecting rod 315 are connected, and a wrench 317 is connected to the connecting end of the two connecting rods 316.

[0047] Before cutting the pipe 2, select a clamping device 4 that fits the pipe 2. Pull the wrench 317. Under the action of the wrench 317, the deflecting rod 315 drives the sliding rod 313 to move along the axis of the fixed rod 314. At the same time, the sliding rod 313 drives the fixed block 312 to slide along the axis of the fixed rod 314. Since the fixed block 312 is fixedly connected to the first fixing plate 31, under the action of the fixed block 312, the first fixing plate 31 separates from the second fixing plate 32. The staff can control the distance between the first fixing plate 31 and the second fixing plate 32 by pulling up and lowering the wrench 317. During the process of the separation and approach of the first fixing plate 31 and the second fixing plate 32, the guide rod 323 can strengthen the stability of the connection between the first fixing plate 31 and the second fixing plate 32.

[0048] After the staff installs the first clamping module 41 and the second clamping module 42, place the pipe 2 in the clamping device 4, and turn the wrench 317 again to make the first fixing plate 31 approach the second fixing plate 32 to complete the fixation of the pipe 2.

[0049] Combined with Figure 1 and Figure 2 , a sliding block (not shown in the figure) is installed on the lifting device 7. The sliding block is connected to the collecting device 6. Since the collecting device 6 is connected to the second fixing plate 32, during the rising and falling process of the collecting device 6, the pipe clamping device 3 also rises or falls accordingly. After the pipe 2 is fixed, start the lifting device 7 to drive the pipe 2 to move upward and cut with the saw blade, so as to realize the rapid cutting of the pipe 2.

[0050] The collecting device 6 is a collecting box with an open side on one side, so that the cut pipe 2 can be collected into the collecting box, which is convenient for the staff to collect and sort.

[0051] The implementation principle of the micro-caliber pipe cutting device in the embodiment of the present application is as follows: The staff rotates the wrench 317 to separate the first fixing plate 31 from the second fixing plate 32. After fixing the clamping device 4, put the pipe 2 in, rotate the wrench 317 again to make the first fixing plate 31 fit the second fixing plate 32, start the lifting device 7, move the pipe 2 under the saw blade, start the circular saw 11, and cut the pipe 2. The cut pipe 2 is collected into the collecting device 6.

[0052] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A micro-diameter pipe cutting device for cutting pipes (2) with a micro-diameter, characterized in that: It includes a circular saw (11), a pipe clamping device (3) installed below the circular saw, a lifting device (7) for lifting the pipe clamping device (3), and a guide rail (5) for the pipe clamping device (3) to slide on; The pipe clamping device (3) includes a first fixing plate (31) and a second fixing plate (32) arranged oppositely. A fixing rod (314) that penetrates the first fixing plate (31) and has one end fixedly connected to the second fixing plate (32) is provided on the first fixing plate (31). A fixing block (312) is slidably installed on the fixing rod (314), and the fixing block (312) is fixedly connected to the first fixing plate (31). A wrench (317) is connected to the fixing block (312); The second fixing plate (32) can slide on the guide rail (5), and the lifting device (7) is fixedly connected to the second fixing plate (32); A sliding rod (313) is connected to the side wall of the fixing block (312). A deflecting rod (315) is rotatably connected to the other end of the sliding rod (313). The deflecting rod (315) is L-shaped, and the sliding rod (313) is rotatably connected to the deflecting rod (315) at the corner; The end of the horizontal rod of the deflecting rod (315) far from the corner is rotatably connected to the end of the fixing rod (314) far from the first fixing plate (31), and the end of the vertical rod of the deflecting rod (315) far from the corner is fixedly connected to the wrench (317); The cross-section of the fixing block (312) is T-shaped, and a communicating hole (311) for the small cylinder of the fixing block (312) to slide is provided in the first fixing plate (31).

2. The micro-diameter pipe cutting device according to claim 1, characterized in that: An installation hole (321) is provided on the plate surface of the second fixing plate (32). A fixing bolt (322) is installed in the installation hole (321), and a threaded hole adapted to the fixing bolt (322) is provided at the end of the fixing rod (314).

3. The micro-diameter pipe cutting device according to claim 1, characterized in that: It also includes a clamping device (4) arranged in the pipe clamping device (3). The clamping device (4) includes a first clamping module (41) and a second clamping module (42) arranged oppositely. A semicircular notch is provided on the first clamping module (41), and a semicircular notch is also provided on the second clamping module (42). The two semicircular notches are adapted; 4. The micro-diameter pipe cutting device according to claim 1, characterized in that: It also includes a collecting device (6). One end of the collecting device (6) close to the circular saw has an opening, and the collecting device (6) is fixedly connected to the second fixing plate (32).

5. The micro-diameter pipe cutting device according to claim 1, characterized in that: A guide rod (323) is arranged in the second fixing plate (32). One end of the guide rod (323) is fixed in the second fixing plate (32), and the other end extends into the first fixing plate (31).

6. The micro-diameter pipe cutting device according to claim 1, characterized in that: A handle (33) is arranged on the plate surface of the first fixing plate (31) facing away from the second fixing plate (32).

7. The micro-diameter pipe cutting device according to claim 6, characterized in that: The end of the handle (33) is detachably connected to the first fixing plate (31) by a bolt.

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