Pneumatic clamp-type pipe cutting device

Abstract

The application discloses a pneumatic clamping type pipe cutting device and relates to the technical field of pipe cutting, which comprises a pipe cutting machine, a first air cylinder and a second air cylinder on the pipe cutting machine, a fixing support arranged on the pipe cutting machine, a moving support arranged on the second air cylinder, a cutter, an elastic air bag, a connecting frame and a friction wheel. The cutter is provided with an air inlet channel and an air outlet channel, and the air inlet channel and the air outlet channel are communicated. One side of the elastic air bag is provided with an air inlet pipe, and the other side is provided with an air outlet pipe. The connecting frame is fixedly provided with a fixed frame at both ends, and a propelling wheel is rotatably arranged in the fixed frame. The rotation of the friction wheel drives the propelling wheel to rotate, and the two propelling wheels are attached to the pipe to push the pipe forward for the next cutting. In the application, there is no complex control module, and the pipe cutting and feeding are still controlled by the air cylinder, so that the structure is simple and easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe cutting, in particular to a pneumatic clamping pipe cutting device. BACKGROUND

[0002] At present, the pneumatic brake pipe and cooling water pipe on the automobile market are all resin hoses, which are mainly used for conveying gas and liquid to ensure the normal operation of the vehicle, and the resin hoses need to be cut according to the design requirements such as length during production and installation.

[0003] The production of the hose is usually a whole strip, and the whole strip of hose is cut into several end strips for next processing during cutting. Therefore, the cutting-feeding-re-cutting process is usually required during cutting. The existing part of the pipe cutting device usually needs manual feeding or mechanical feeding during cutting. However, no matter which way is used, the feeding needs to be operated independently, so that the pipe cutting process of the worker has an additional step, and the full-automatic pipe cutting control mode involves a PLC control module, which requires professional personnel to program and design and constantly improve and maintain, thereby increasing the personnel cost. SUMMARY

[0004] The purpose of the present application is to provide a pneumatic clamping pipe cutting device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a pneumatic clamping pipe cutting device, comprising a pipe cutting machine and a first air cylinder and a second air cylinder thereon, a fixed support is further arranged on the pipe cutting machine, a moving support is further arranged on the second air cylinder, and the device further comprises: a cutter, an air inlet channel and an air outlet channel are arranged on the cutter, and the air inlet channel and the air outlet channel are communicated; an elastic air bag, an air inlet pipe is arranged on one side of the elastic air bag, and an air outlet pipe is arranged on the other side; a connecting frame, fixed frames are fixedly installed at both ends of the connecting frame, and a propelling wheel is rotatably installed in the fixed frame; a friction wheel, the propelling wheel is driven to rotate by the friction wheel, and a fan blade is arranged in the center through hole of the friction wheel; a limiting mechanism, which is used to open the air outlet pipe when the cutter exits.

[0006] As a preferred, it further comprises a mounting plate.

[0007] The air inlet channel is L-shaped.

[0008] As a preferred, the limiting mechanism comprises a vertical plate fixedly installed on the pipe cutting machine, a sliding plate is horizontally and slidingly installed on the vertical plate, a blocking plate is fixedly installed at one end of the sliding plate, and a spring is fixedly installed between the sliding plate and the vertical plate.

[0009] The cutter is fixedly installed with a protruding block.

[0010] Preferably, a connecting plate is fixedly installed on the pipe cutting machine, the connecting frame is fixedly installed on the connecting plate, and a friction ring is fixedly installed on the side wall of the push wheel, with the friction ring and the friction wheel in contact.

[0011] Preferably, a collar is fixedly installed on the friction wheel, and the collar is rotatably mounted on the fixed frame.

[0012] Preferably, both the fixed bracket and the movable bracket are equipped with clamping rings, and the clamping rings are provided with inner grooves and observation holes.

[0013] Preferably, the connecting frame is concave.

[0014] Preferably, a fixing plate is fixedly installed on the fixing bracket, and the elastic airbag is fixedly installed on the fixing plate.

[0015] Preferably, the propulsion wheel is provided with a rubber pad.

[0016] Preferably, the blocking plate is in the shape of an "I".

[0017] In the above technical solution, the present invention provides a pneumatic clamping pipe cutting device, which has the following beneficial effects: The present invention connects the other end of the pipe to a blower, thereby continuously supplying air into the pipe. The free end of the pipe is cut between a fixed bracket and a movable bracket. When cutting is required, a first cylinder pushes the cutter to cut the pipe. As the cutting ends, the air inlet channel on the cutter aligns with the pipe. At this time, due to the blower blowing air, the gas enters the outlet channel through the air inlet channel on the cutter, and then enters two elastic airbags through two air inlet pipes through the upper and lower openings of the outlet channel. The air inlet pipes are equipped with… The one-way valve allows air to flow only into the elastic air bladder. As the air inlet channel and the pipe are connected, the elastic air bladder will be continuously inflated until it is full. At this point, the cutter retracts, and the air outlet pipe opens through the limiting mechanism. The airflow inside the elastic air bladder enters the fixed frame through the air outlet pipe and passes through the center of the friction wheel. The fan blades at the center of the friction wheel drive the friction wheel to rotate. The rotation of the friction wheel drives the propulsion wheel to rotate. The two propulsion wheels and the pipe are in contact, thus pushing the pipe forward for the next round of cutting. In this application, there is no complex control module. Cutting and feeding are still performed by controlling the cylinder. The structure is simple and easy to operate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the three-dimensional structure provided for the embodiment of the present application is shown in the figure;

[0020] Figure 2 A schematic diagram of the three-dimensional structure provided for the embodiment of the present application is shown in the figure; Figure 1 A schematic diagram of the three-dimensional structure provided for the embodiment of the present application is shown in the figure;

[0021] Figure 3 A schematic diagram of the three-dimensional structure provided for the embodiment of the present application is shown in the figure;

[0022] Figure 4 A schematic diagram of the three-dimensional structure provided for the embodiment of the present application is shown in the figure;

[0023] Figure 5 A schematic diagram of the three-dimensional structure provided for the embodiment of the present application is shown in the figure;

[0024] Figure 6 A schematic diagram of the three-dimensional structure provided for the embodiment of the present application is shown in the figure.

[0025] Explanation of reference signs:

[0026] 1, pipe cutting machine; 2, first cylinder; 3, second cylinder; 4, fixed support; 5, moving support; 6, cutter; 61, air inlet channel; 62, air outlet channel; 63, protruding block; 64, mounting plate; 71, fixed plate; 72, elastic air bag; 73, air inlet pipe; 74, air outlet pipe; 75, vertical plate; 76, sliding plate; 77, blocking plate; 81, connecting plate; 82, connecting frame; 83, fixed frame; 84, friction wheel; 841, sleeve ring; 85, propelling wheel; 86, friction ring; 87, rotating rod; 91, clamping ring; 92, inner groove; 10, pipe. DETAILED DESCRIPTION

[0027] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0028] Please refer to Figures 1-6 , the pneumatic clamping type pipe cutting device, comprising a pipe cutting machine 1 and a first cylinder 2 and a second cylinder 3 thereon, and the pipe cutting machine 1 is further provided with a fixed support 4, and the second cylinder 3 is provided with a moving support 5, further comprising:

[0029] a cutter 6, provided with an air inlet channel 61 and an air outlet channel 62, and the air inlet channel 61 and the air outlet channel 62 are in communication;

[0030] an elastic air bag 72, provided with an air inlet pipe 73 on one side and an air outlet pipe 74 on the other side;

[0031] The connecting frame 82 has fixed frames 83 at both ends, and a push wheel 85 is rotatably installed inside the fixed frame 83;

[0032] The friction wheel 84 rotates, which drives the propulsion wheel 85 to rotate, and the central through hole of the friction wheel 84 is provided with fan blades;

[0033] A limiting mechanism is used to open the vent pipe 74 when the cutter 6 retracts;

[0034] This also includes a fan connected to the other end of the pipe 10, allowing continuous airflow into the pipe 10. The free end of the pipe 10 is connected to a fixed bracket 4 and a movable bracket 5 for cutting. When cutting is required, the first cylinder 2 pushes the cutter 6 to cut the pipe 10. After cutting, the air inlet channel 61 on the cutter 6 aligns with the pipe 10. At this time, due to the fan blowing air, the gas enters the air outlet channel 62 through the air inlet channel 61 on the cutter 6, and then enters the two elastic airbags 72 through the upper and lower openings of the air outlet channel 62 via two air inlet pipes 73. The 3 is equipped with a one-way valve so that air can only be introduced into the elastic airbag 72. Therefore, after the air inlet channel 61 and the pipe 10 are connected, the elastic airbag 72 will be continuously inflated until it is full. At this time, the cutter 6 is withdrawn, and the air outlet pipe 74 is opened by the limiting mechanism. At this time, the airflow in the elastic airbag 72 will enter the fixed frame 83 through the air outlet pipe 74 and pass through the center of the friction wheel 84. The fan blade at the center of the friction wheel 84 will drive the friction wheel 84 to rotate. At this time, the rotation of the friction wheel 84 will drive the push wheel 85 to rotate. The two push wheels 85 and the pipe 10 are in contact to push the pipe 10 forward for the next round of cutting.

[0035] The fixed end of the pipe fitting 10 is wound on the take-up roller. Since the take-up roller is easier to rotate and feed, the push wheel 85 can more easily push the pipe fitting 10.

[0036] In another embodiment of the present invention, a mounting plate 64 is also included;

[0037] The air intake passage 61 is L-shaped;

[0038] The intake passage 61 is horizontally L-shaped. When designing the intake passage 61 and the exhaust passage 62, refer to... Figure 4 First, drill a horizontal hole on the front of the cutter 6. Then, drill a horizontal hole on the side of the cutter 6 until it connects with the horizontal hole drilled on the front. This forms an L-shaped air intake channel 61. The air outlet channel 62 can be drilled directly from top to bottom through a hole. Then, install the side of the cutter 6 on the mounting plate 64. At this time, the outlet of the air intake channel 61 is blocked. At the same time, the cutter 6 can be installed on the first cylinder 2 through the mounting plate 64.

[0039] Another embodiment of the present application: the limiting mechanism comprises a vertical plate 75 fixedly installed on the pipe cutting machine 1, a sliding plate 76 horizontally slidingly installed on the vertical plate 75, a blocking plate 77 fixedly installed on one end of the sliding plate 76, and a spring fixedly installed between the sliding plate 76 and the vertical plate 75;

[0040] The tool 6 is fixedly installed with a protrusion 63;

[0041] When the inflation of the elastic air bag 72 is completed, the protrusion 63 on the tool 6 will contact the sliding plate 76 as the tool 6 is retracted, wherein the protrusion 63 is substantially located on the right side of the sliding plate 76, so that when the tool 6 is retracted to the left, the protrusion 63 will drive the sliding plate 76 to move to the left, and at this time, the sliding plate 76 will drive the blocking plate 77 to move to the left to remove the air outlet pipe 74, so that the inside of the air outlet pipe 74 is unobstructed, and the blocking plate 77 will not be completely removed from the surface of the air outlet pipe 74, thereby avoiding the overflow of gas. Figure 4

[0042] Another embodiment of the present application: the pipe cutting machine 1 is fixedly installed with a connecting plate 81, a connecting frame 82 is fixedly installed on the connecting plate 81, a friction ring 86 is fixedly installed on the side wall of the pushing wheel 85, and the friction ring 86 is in contact with the friction wheel 84;

[0043] When the friction wheel 84 rotates, it will drive the friction ring 86 to rotate, thereby driving the pushing wheel 85 to rotate to push the pipe 10 forward;

[0044] In a further embodiment, the air inlet pipe 73 and the air outlet pipe 74 are both provided as a combination of a soft pipe and a hard pipe, wherein the soft pipe part is connected with the elastic air bag 72, and the hard pipe part is used to be installed on other components, and the blocking plate 77 is inserted into the hard pipe of the air outlet pipe 74 to facilitate plugging;

[0045] The hard pipe part of the air inlet pipe 73 is fixedly installed on the fixed support 4, and the hard pipe part of the air outlet pipe 74 is fixedly installed on the connecting frame 82.

[0046] Another embodiment of the present application: the friction wheel 84 is fixedly installed with a sleeve ring 841, and the sleeve ring 841 is rotatably installed on the fixed frame 83;

[0047] The inner wall of the sleeve ring 841 is fixedly installed with a rotating rod 87, and the fan blades are fixedly installed on the rotating rod 87, the gas in the elastic air bag 72 enters the sleeve ring 841 through the air outlet pipe 74 and passes through the friction wheel 84, at this time, the airflow will pass through the fan blades to drive the friction wheel 84 to rotate through the sleeve ring 841, and with the rotation of the friction wheel 84, it will drive the pushing wheel 85 to rotate through the friction ring 86;

[0048] ​The size of the friction wheel 84 is larger than the size of the friction ring 86, so that one rotation of the friction wheel 84 can drive the friction ring 86 and the propelling wheel 85 to rotate several times, so that the propelling efficiency is higher, and it is also easier to drive the propelling wheel 85 to rotate;

[0049] Further, the surfaces of the friction wheel 84 and the friction ring 86 can be provided with tooth blocks and tooth grooves respectively to engage and obtain better transmission effect;

[0050] Further, a circular ring is fixedly installed on the pipe cutting machine 1, so that the pipe 10 penetrates through the circular ring to enter between the fixed support 4 and the moving support 5, so as to position and limit the pipe 10 to facilitate the pushing of the propelling wheel 85.

[0051] In another embodiment of the present application: the fixed support 4 and the moving support 5 are both provided with clamping rings 91, and the clamping rings 91 are provided with inner grooves 92 and observation holes;

[0052] The two clamping rings 91 can form a complete circular ring, so as to conveniently clamp the pipe 10, and when the pipe 10 penetrates into the two clamping rings 91, the pipe 10 is clamped by the moving of the moving support 5, so as to limit the movement of the pipe 10, and then the first air cylinder 2 is started to push the cutter 6 to cut the pipe 10, so that the cutting precision is higher and the surface of the pipe 10 is smoother. In the prior art, when the pipe 10 is clamped and cut, the fixed clamping mode has a single function, such as clamping, cutting, feeding, and re-cutting, and the damage inspection of the pipe 10 often needs additional steps. In the present application, when the cutting is just finished and the air inlet channel 61 of the cutter 6 is not communicated with the pipe 10, the cutter 6 blocks the opening of the pipe 10, and at this time, the fan is still started to blow air, which can cooperate with the clamping ring 91 to check the damage degree of the pipe 10. The two clamping rings 91 are both provided with inner grooves 92, so that the clamping ring 91 clamps the pipe 10 through the two sides, and there is space between the inner groove 92 and the pipe 10. If the pipe 10 is damaged, the airflow will enter the inner groove 92 through the damaged part and be sprayed out through the observation hole of the clamping ring 91. Further, a balloon or a floating paper sheet can be installed on the observation hole, so that it is easier to observe when the airflow is sprayed out. Therefore, in the present application, when the fan is used to blow air to the pipe 10 to be cut, the transportation problem of the pipe 10 can be solved, and the quality of the pipe 10 itself can be detected.

[0053] In another embodiment of the present application: the connecting frame 82 is concave;

[0054] The connecting frame 82 can connect two fixed frames 83 at the same time, so that the two push wheels 85 are located at the upper and lower ends of the pipe fitting 10 respectively, so as to push the pipe fitting 10 at the same time.

[0055] In another embodiment of the present invention: a fixing plate 71 is fixedly installed on the fixing bracket 4, and the elastic airbag 72 is fixedly installed on the fixing plate 71;

[0056] The elastic airbag 72 is mounted on the fixed bracket 4 via the fixed plate 71.

[0057] In another embodiment of the present invention: a rubber pad is provided on the propulsion wheel 85;

[0058] This increases the friction of the propulsion wheel 85 to facilitate the movement of its propulsion tube 10.

[0059] In another embodiment of the present invention: the blocking plate 77 is in the shape of an "I";

[0060] The upper and lower protruding ends of the blocking plate 77 can be inserted into the two air outlet pipes 74 respectively to block the passage.

[0061] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pneumatic clamping pipe cutting device, comprising a pipe cutting machine (1) and a first pneumatic cylinder (2) and a second pneumatic cylinder (3) on the pipe cutting machine (1), and a fixed support (4) is arranged on the pipe cutting machine (1), and a moving support (5) is arranged on the second pneumatic cylinder (3), characterized in that, Also include: The cutter (6) is provided with an air inlet channel (61) and an air outlet channel (62), and the air inlet channel (61) and the air outlet channel (62) are communicated; The elastic air bag (72) is provided with an air inlet pipe (73) on one side and an air outlet pipe (74) on the other side; The connecting frame (82) is fixedly installed with a fixed frame (83) at both ends, and the fixed frame (83) is rotatably installed with a propelling wheel (85); The friction wheel (84) rotates to drive the propelling wheel (85) to rotate, and the friction wheel (84) is provided with a fan blade at the center through hole position; The limiting mechanism is used to open the air outlet pipe (74) when the cutter (6) is withdrawn; When cutting is needed, the cutter (6) is pushed by the first cylinder (2) to cut the pipe (10); With the end of cutting, the air inlet channel (61) on the cutter (6) will be aligned with the pipe (10), at this time, because the fan is blowing, the gas will enter the air outlet channel (62) through the air inlet channel (61) on the cutter (6), and then enter the two elastic air bags (72) through the upper and lower openings of the air outlet channel (62) respectively, and the air inlet pipe (73) is provided with a one-way valve to allow air to flow only into the elastic air bag (72), after the air inlet channel (61) and the pipe (10) are connected, the elastic air bag (72) will be continuously inflated until it is full, at this time, the cutter (6) is withdrawn, and the limiting mechanism is used to open the air outlet pipe (74), at this time, the airflow in the elastic air bag (72) will enter the fixed frame (83) through the air outlet pipe (74), and penetrate the center of the friction wheel (84), so as to drive the friction wheel (84) to rotate through the fan blade at the center position of the friction wheel (84), at this time, the rotation of the friction wheel (84) will drive the propelling wheel (85) to rotate, and the two propelling wheels (85) and the pipe (10) are in close contact to push the pipe (10) forward for the next round of cutting.

2. The pneumatic clamp style pipe cutting device of claim 1, wherein, Also include mounting plate (64); The air inlet channel (61) is L-shaped.

3. The pneumatic clamp style pipe cutting device of claim 2, wherein, The limiting mechanism includes a vertical plate (75) fixedly installed on the pipe cutting machine (1), a sliding plate (76) horizontally slidably installed on the vertical plate (75), a blocking plate (77) fixedly installed on one end of the sliding plate (76), and a spring fixedly installed between the sliding plate (76) and the vertical plate (75); The cutter (6) is fixedly installed with a protruding block (63).

4. The pneumatic clamp style pipe cutting device of claim 3, wherein, The connecting plate (81) is fixedly installed on the pipe cutting machine (1), the connecting frame (82) is fixedly installed on the connecting plate (81), the side wall of the propelling wheel (85) is fixedly installed with a friction ring (86), and the friction ring (86) is in close contact with the friction wheel (84).

5. The pneumatic clamp style pipe cutting device of claim 1, wherein, The friction wheel (84) is fixedly installed with a sleeve ring (841), and the sleeve ring (841) is rotatably installed on the fixed frame (83).

6. The pneumatic clamp style pipe cutting device of claim 1, wherein, The fixed support (4) and the moving support (5) are both installed with a clamping ring (91), and the clamping ring (91) is provided with an inner recess (92), and the clamping ring (91) is provided with an observation hole.

7. The pneumatic clamp style pipe cutting device of claim 1, wherein, The connecting frame (82) is "concave".

8. The pneumatic clamp style pipe cutting device of claim 1, wherein, A fixing plate (71) is fixedly installed on the fixing bracket (4), and the elastic airbag (72) is fixedly installed on the fixing plate (71).

9. The pneumatic chucking pipe cutting device according to claim 1, characterized in that, The propulsion wheel (85) is equipped with a rubber pad.

10. The pneumatic clamp style pipe cutting device of claim 3, wherein, The blocking plate (77) is in the shape of an "I".

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