Pipe cutting machine

Abstract

The utility model relates to the field of cutting equipment, and discloses a pipe cutting machine which comprises a machine frame. A pipe pressing space is formed in the pipe pressing mechanism; the pipe cutting mechanism is provided with a tool apron, a rotatable blade is arranged on the tool apron and located on one side of the pipe pressing space, the top side of the blade upwards protrudes out of the tool apron, the part, protruding out of the tool apron, of the blade can directly face or be staggered from the pipe pressing space, and stabilizing blocks are arranged at the positions, located on the left side and the right side of the blade, in the tool apron correspondingly. The two stabilizing blocks are close to the left side and the right side of the blade correspondingly. The pipe feeding mechanism is located on the other side of the pipe pressing space, the pipe feeding mechanism is provided with a pipe feeding base capable of moving left and right on the rack, and a pipe clamping space capable of being opened and closed up and down is arranged in the pipe feeding base. And the pipe cutting machine can cut pipes with large radiuses or multiple pipes at the same time, and the functionality and practicability of the pipe cutting machine are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of cutting and preparation, in particular to a pipe cutting machine. Background Art

[0002] When cutting pipes, traditional pipe cutting machines use a knife seat to drive the cutter to swing from one side to approach the pipe. The extension line of the knife seat's active path passes through the cutter's center. As the knife seat gradually approaches, the cutter is used to cut the pipe. The radius of the pipe that the pipe cutting machine can cut and the number of pipes cut generally depend on the size of the blade. When the radius of the pipe required to be cut is larger or the number of pipes required to be cut is more, the radius requirement of the blade is also larger. At this time, the volume of the entire knife seat also needs to be increased, resulting in the problem of the pipe cutting machine being too large and the manufacturing cost being too high. Therefore, some pipe cutting machines on the market cut pipes by translating the cutter. The extension line of the knife seat's active path does not intersect with the cutter's center. At this time, the cutter can cut more pipes with a larger radius and a larger number, which can effectively control the volume of the pipe cutting machine. However, this type of pipe cutting machine has the problem of cutter polarization during operation, which affects the processing quality. Therefore, a pipe cutting machine with more stable processing is urgently needed. Utility Model Content

[0003] The utility model aims to provide a pipe cutting machine to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A pipe cutting machine comprises: a frame; a pipe pressing mechanism, which has a pipe pressing space that can be opened and closed up and down; the pipe cutting mechanism has a knife seat that can move forward and backward on the frame, the knife seat is provided with a rotatable blade, the rotation axis of the blade extends in the left and right direction, the blade is located on one side of the pipe pressing space, the top side of the blade protrudes upward from the knife seat, the part of the blade protruding from the knife seat can be directly opposite to or staggered from the pipe pressing space, and the knife seat is provided with stabilizing blocks at the left and right sides of the blade, respectively, and the two stabilizing blocks are respectively close to the left and right sides of the blade; a pipe feeding mechanism is located on the other side of the pipe pressing space, the pipe feeding mechanism has a pipe feeding seat that can move left and right on the frame, and the pipe feeding seat has a pipe clamping space that can be opened and closed up and down.

[0006] The technical solution has at least the following beneficial effects: the clamping space in the tube feeding seat and the tube pressing space in the tube pressing mechanism are opened, the tube to be cut is passed through the clamping space and fed into the tube pressing space, the required cutting length is exposed from the tube pressing space, the blade in the knife seat is rotated, and the knife seat is moved so that the blade moves to face the tube pressing space, and the part of the tube exposed from the tube pressing space is cut. In the process of cutting the tube, the part of the top side of the blade protruding upward from the knife seat is mainly used to cut the tube. At this time, the blade is moved left and right, and the knife seat will not interfere with the tube pressing space or the tube, so that the size can be realized. A blade with a smaller size can also cut pipes with a larger radius or multiple pipes. After completing the pipe cutting action, the knife seat returns to its original position, and the blade and the pipe pressing space are staggered to prepare for the next pipe cutting action. This can effectively reduce the design volume of the pipe cutting mechanism, thereby reducing the volume of the entire machine and reducing the manufacturing cost of the entire machine. It can also achieve simultaneous cutting of pipes with a larger radius or multiple pipes, greatly improving the functionality and practicality of the pipe cutting machine. When working, the two stabilizing blocks are located on both sides of the blade, which is conducive to stabilizing the blade, especially the part of the blade protruding from the knife seat for work, thereby improving the quality of pipe cutting processing.

[0007] As a further improvement of the above technical solution, the pipe cutting mechanism includes a driving motor and a reduction gear set, the reduction gear set is arranged in the knife seat, the reduction gear set has an input shaft and an output shaft that transmit to each other, the blade is connected to the output shaft, the driving motor is connected to the side of the knife seat, and the driving motor is connected to the input shaft. The driving motor is installed on the side of the knife seat, which can reduce the height of the entire pipe cutting mechanism, thereby better controlling the height of the top side of the blade processing the pipe. The driving motor provides power, which is transmitted to the reduction gear set through the input shaft, and the reduction gear set is used to increase the output torque, and the power is output to the blade through the output shaft, thereby driving the blade to rotate.

[0008] As a further improvement of the above technical solution, the pipe pressing mechanism includes a pipe pressing frame, a first lifting drive, an upper pressing plate and a bottom plate, the pipe pressing frame and the bottom plate are both connected to the frame, the bottom plate is located in the pipe pressing frame, the first lifting drive is connected to the top side of the pipe pressing frame, the movable end of the first lifting drive extends downward into the pipe pressing frame and connects to the upper pressing plate, and the pipe pressing space is formed between the upper pressing plate and the bottom plate. The first lifting drive provides a driving force for the upper pressing plate to reciprocate in the up and down directions. When it is necessary to fix the pipe, the first lifting drive drives the upper pressing plate to move downward, and the pipe pressing space formed between the upper pressing plate and the bottom plate closes, pressing the pipe tightly against the bottom plate. After the pipe cutting is completed, the first lifting drive drives the upper pressing plate to move upward again, and the pipe pressing space formed between the upper pressing plate and the bottom plate opens, so that the pipe can be pulled and adjusted from the pipe pressing space to prepare for the next cutting process of the pipe.

[0009] As a further improvement of the above technical solution, the pipe pressing rack is connected with a first translation driving member, which is drivably connected to a material pulling rack, and the first translation driving member can drive the material pulling rack to move left and right, and the material pulling rack is located on the side of the pipe pressing rack away from the pipe feeding seat, and the material pulling rack is provided with a hole passing through in the left and right directions, and the material pulling rack is connected with a second lifting driving member, and the second lifting driving member is drivably connected to a material pulling plate, and the second lifting driving member can drive the material pulling plate to move up and down in the hole. Before preparing to cut the pipe, the pipe passes through the pipe pressing space and extends into the hole. The second lifting drive member drives the pulling plate to move down in the hole, and presses the pipe against the position of the pulling rack at the bottom side of the hole. At this time, the left and right sides of the position where the pipe is to be cut are respectively pressed and positioned, which greatly improves the stability of the pipe during cutting, reduces the offset or vibration of the pipe during processing, and further improves the quality of pipe processing. When the pipe is cut, the first translation drive member drives the pulling rack to move away from the pipe pressing rack, and pulls the cut pipe away from the blade. At this time, the blade returns to its original position, which can reduce the friction between the blade and the end of the pipe, thereby reducing the burrs on the end of the pipe and improving the cutting quality of the pipe. Finally, the second lifting drive member drives the pulling plate to move up and reset, thereby loosening the cut pipe. In addition, when the length of the pipe to be cut is small, the pulling plate can be used to press the pipe and then pull the pipe to a suitable position, which can improve the utilization rate of the pipe and reduce the abandonment of the pipe.

[0010] As a further improvement of the above technical solution, a material receiving plate is connected to the side of the material drawing rack away from the pipe pressing rack, and the material receiving plate is located below the hole. Since the material receiving plate is located below the hole, there is a height difference between the position of the material drawing rack at the bottom side of the hole and the material receiving plate, forming a step structure. When the material drawing plate presses the pipe to the bottom side of the hole of the material drawing rack, the pipe is still located above the material receiving plate. When the material drawing plate moves away from the pipe, the cut pipe falls into the material receiving plate, so that the cut pipe automatically falls into the material receiving plate, avoiding entering the side of the material drawing rack facing the pipe pressing rack and affecting the next pipe cutting.

[0011] As a further improvement of the above technical solution, the pulling rack is connected with a second translation driving member, which is drivingly connected with a first side pressure plate, and the second translation driving member can drive the first side pressure plate to move forward and backward in the hole. When the pipe is inserted into the hole, the second translation driving member can drive the first side pressure plate to press against one side of the pipe, and at this time, a single pipe or multiple pipes can be pressed and limited in the front-to-back direction, further reducing the deviation of the pipe during the cutting process and improving the stability of pipe processing.

[0012] As a further improvement of the above technical solution, the tube delivery mechanism includes a tube clamping part, which includes a third translation drive member, a third lifting drive member and a clamping plate. The third translation drive member is connected to the frame, and the third translation drive member is driven to connect to the tube delivery seat. The third translation drive member can drive the tube delivery seat to move left and right. The third lifting drive member is connected to the tube delivery seat, and the third lifting drive member is driven to connect to the clamping plate. The tube clamping space is formed between the clamping plate and the tube delivery seat, and the third lifting drive member can drive the clamping plate to move up and down. The third lifting drive can provide a driving force for the clamping plate in the up and down directions. Before positioning the pipe, the third lifting drive drives the clamping plate to move up, the pipe clamping space between the clamping plate and the pipe delivery seat is opened, and then the pipe is inserted into the pipe clamping space. The third lifting drive drives the clamping plate to move down, the pipe clamping space between the clamping plate and the pipe delivery seat is closed, and the pipe is clamped and positioned. When the pipe needs to be shifted during operation, the third translation drive drives the pipe delivery seat to move left and right to achieve approaching or moving away from the pipe pressing space.

[0013] As a further improvement of the above technical solution, the tube feeding mechanism further includes a fourth translation driving member and a second side pressure plate, wherein the fourth translation driving member is connected to the tube feeding seat, the fourth translation driving member is drivingly connected to the second side pressure plate, and the fourth translation driving member can drive the second side pressure plate to move forward and backward. When the tube is inserted into the tube clamping space, the fourth translation driving member drives the second side pressure plate to approach the tube, and at this time, a single tube or multiple tubes can be pressed and limited in the front-to-back direction, further reducing the deviation of the tail of the tube during feeding or cutting, and improving the stability of tube processing.

[0014] As a further improvement of the above technical solution, two tube clamping parts are provided in the left and right directions, and the second side pressure plate is located between the two tube clamping parts. Two tube clamping parts are provided at the tail of the tube to press and limit the tube in the up-down direction, and there is a pressing and limiting function for the tube in the front-back direction between the two tube clamping parts, which further improves the stability of the tube when being pressed and limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0016] Figure 1 It is an overall stereogram of the utility model.

[0017] Figure 2 It is a top view of the pipe cutting mechanism of the utility model.

[0018] Figure 3 It is a three-dimensional diagram of the pipe pressing mechanism of the utility model.

[0019] Figure 4 It is a three-dimensional diagram of the pipe delivery mechanism of the utility model.

[0020] Figure 5 yes Figure 2 A is a partial enlarged schematic diagram.

[0021] In the accompanying drawings: 100-frame, 200-tube pressing mechanism, 210-tube pressing frame, 220-first lifting drive member, 230-upper pressure plate, 240-bottom plate, 250-material pulling frame, 251-hole, 260-material pulling plate, 270-material receiving plate, 280-second translation drive member, 290-first side pressure plate, 300-tube cutting mechanism, 310-knife seat, 320-blade, 330-stabilizing block, 340-driving motor, 400-tube feeding mechanism, 410-tube feeding seat, 420-third lifting drive member, 430-clamp, 440-second side pressure plate. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference Figure 1 and Figure 2 , a pipe cutting machine, comprising: a frame 100; a pipe pressing mechanism 200, wherein a pipe pressing space that can be opened and closed up and down is formed inside; a pipe cutting mechanism 300, comprising a knife seat 310 that can move forward and backward on the frame 100, wherein a rotatable blade 320 is arranged on the knife seat 310, wherein the rotation axis of the blade 320 extends in the left-right direction, wherein the blade 320 is located at one side of the pipe pressing space, wherein the top side of the blade 320 protrudes upward from the knife seat 310, wherein the portion of the blade 320 protruding from the knife seat 310 can be directly opposite to or staggered from the pipe pressing space, wherein stabilizing blocks 330 are respectively arranged at positions on the left and right sides of the blade 320 in the knife seat 310, wherein the two stabilizing blocks 330 are respectively close to the left and right sides of the blade 320; a pipe feeding mechanism 400, wherein the pipe feeding mechanism 400 has a pipe feeding seat 410 that can move left and right on the frame 100, wherein the pipe feeding seat 410 has a pipe clamping space that can be opened and closed up and down.

[0027] As can be seen from the above, the tube clamping space in the tube feeding seat 410 and the tube pressing space in the tube pressing mechanism 200 are opened, the tube to be cut is passed through the tube clamping space and sent into the tube pressing space, the length to be cut is exposed from the tube pressing space, the blade 320 in the knife seat 310 is rotated, and the knife seat 310 is moved so that the blade 320 moves to face the tube pressing space, and the part of the tube exposed from the tube pressing space is cut. In the process of cutting the tube, the part of the top side of the blade 320 protruding upward from the knife seat 310 is mainly used to cut the tube. At this time, the left and right movable blade 320 and the knife seat 310 will not interfere with the tube pressing space or the tube, so that a smaller size can be achieved. The blade 320 can also cut pipes with a larger radius or multiple pipes. After completing the pipe cutting action, the knife seat 310 returns to its original position, and the blade 320 is offset from the pipe pressing space to prepare for the next pipe cutting action. This can effectively reduce the design volume of the pipe cutting mechanism 300, thereby reducing the volume of the entire machine and reducing the manufacturing cost of the entire machine, and can achieve simultaneous cutting of pipes with a larger radius or multiple pipes, greatly improving the functionality and practicality of the pipe cutting machine. When working, the two stabilizing blocks 330 are respectively located on both sides of the blade 320, which is beneficial to stabilizing the blade 320, especially the part of the blade 320 protruding from the knife seat 310 used for work, thereby improving the quality of pipe cutting processing.

[0028] A cavity for accommodating the blade 320 may be provided in the knife seat 310. The blade 320 is connected to the cavity via a rotating shaft, which can better store and protect the blade 320 and improve safety during use. In addition, a knife cover or other structure may be further provided on the knife seat 310 to partially store and protect the blade 320.

[0029] For the entire rotating blade 320, the portion used for processing and cutting is mainly located at the top of the blade 320, especially the portion of the blade 320 protruding from the blade holder 310. When the top side of the blade 320 contacts the pipe, the top side of the blade 320 is prone to large shaking due to the large torque force. In order to improve the stability of the blade 320 in cutting the pipe, Figure 5 As shown, in this embodiment, the knife seat 310 is provided with stabilizing blocks 330 at the left and right sides of the blade 320, and the two stabilizing blocks 330 are respectively close to the left and right sides of the blade 320. The two stabilizing blocks 330 are respectively located on both sides of the blade 320, which is conducive to stabilizing the blade 320, especially the part of the blade 320 protruding from the knife seat 310 for working, thereby improving the quality of the pipe cutting process. In actual application, there is a gap between the two stabilizing blocks 330 and the two sides of the blade 320, and the size of the gap is between 1 and 3 mm. When the blade 320 is polarized, the stabilizing block 330 effectively reduces the polarization of the blade 320 by limiting the blade 320. The two stabilizing blocks 330 located on the left and right sides of the blade 320 are a stabilizing group. Stabilizing groups can be respectively arranged at the front and rear positions of the blade 320 to further improve the stabilizing effect on the blade 320. Since the stabilizing block 330 will generate friction with the blade 320 when stabilizing the blade 320, the stabilizing block 330 is made of a wear-resistant material, such as tungsten steel.

[0030] Since the pipe cutting mechanism 300 needs to use the upwardly protruding blade 320 for pipe cutting, it is necessary to control the overall height of the pipe cutting mechanism 300 to avoid the pipe cutting mechanism 300 being too high as a whole, which causes the pipe to be placed too high, affecting the loading and unloading of the pipe and the observation during the pipe cutting process. In this embodiment, the pipe cutting mechanism 300 includes a driving motor 340 and a reduction gear set. The reduction gear set is arranged in the knife seat 310. The reduction gear set has an input shaft and an output shaft that transmit to each other. The blade 320 is connected to the output shaft. The driving motor 340 is connected to the side of the knife seat 310. The driving motor 340 is connected to the input shaft. In actual application, the driving motor 340 and the input shaft can be connected by a synchronous belt transmission. The reduction gear set is in the knife seat 310. The reduction gear set has a plurality of gears that mesh with each other, one of which is connected to the input shaft, and one is connected to the output shaft. The internal gears can be adjusted according to the use requirements to output the required torque. The drive motor 340 is installed on the side of the blade holder 310, which can reduce the height of the entire pipe cutting mechanism 300, so as to better control the height of the pipe processed by the top side of the blade 320. The drive motor 340 provides power, which is transmitted to the reduction gear set through the input shaft. The reduction gear set is used to increase the output torque, and the power is output to the blade 320 through the output shaft, thereby driving the blade 320 to rotate.

[0031] In order to realize the forward and backward movement of the knife seat 310 on the frame 100, it is natural that a driving source for driving the knife seat 310 to move forward and backward is provided on the frame 100, such as an electric push rod, a pneumatic push rod or a hydraulic cylinder. In order to improve the activity stability of the knife seat 310, a first guide rail extending along the front-to-back direction can be provided on the frame 100, and a first slide groove is provided on the bottom side of the knife seat 310. The knife seat 310 and the frame 100 cooperate with each other through the first guide rail and the first slide groove to realize stable sliding along the front-to-back direction on the frame 100. In order to reduce the interference of debris and the like on the sliding of the knife seat 310, an accordion cover can be provided on the front and rear sides of the knife seat 310. The accordion cover can block the first guide rail, the first slide groove and the transmission part of the driving source to reduce the interference of debris and the like on the normal sliding of the knife seat 310.

[0032] The tube pressing mechanism 200 mainly has a tube pressing space that can be opened and closed up and down. For example, two upper and lower driving sources can be set, and the two upper and lower driving sources can respectively drive the two plates to move up and down, thereby clamping or loosening the tube. In order to simplify the structure, one driving source can be used. In this embodiment, Figure 3 As shown, the pipe pressing mechanism 200 includes a pipe pressing frame 210, a first lifting drive member 220, an upper pressing plate 230 and a bottom plate 240. The pipe pressing frame 210 and the bottom plate 240 are both connected to the frame 100, and the bottom plate 240 is located in the pipe pressing frame 210. The first lifting drive member 220 is connected to the top side of the pipe pressing frame 210. The movable end of the first lifting drive member 220 extends downward into the pipe pressing frame 210 and is connected to the upper pressing plate 230. The pipe pressing space is formed between the upper pressing plate 230 and the bottom plate 240. In actual applications, in order to improve the stability of the activity of the upper pressing plate 230, a plurality of first guide columns can be connected to the top side of the upper pressing plate 230, and the plurality of first guide columns pass through the pipe pressing frame 210 upward, and bearings are arranged between the plurality of first guide columns and the pipe pressing frame 210, and the first guide columns are slidably connected to the pipe pressing frame 210 through the bearings. The first lifting drive member 220 provides a driving force for the upper pressure plate 230 to reciprocate in the up and down directions. When the pipe needs to be fixed, the first lifting drive member 220 drives the upper pressure plate 230 to move downward, and the pipe pressing space formed between the upper pressure plate 230 and the bottom plate 240 is closed, and the pipe is pressed tightly against the bottom plate 240. After the pipe cutting is completed, the first lifting drive member 220 drives the upper pressure plate 230 to move upward again, and the pipe pressing space formed between the upper pressure plate 230 and the bottom plate 240 is opened, so that the pipe can be pulled and adjusted from the pipe pressing space to prepare for the next cutting process of the pipe.

[0033] In order to further improve the stability of the pipe at the cutting position, a pipe pressing structure can be added at the pipe cutting position. Specifically, the pipe pressing rack 210 is connected to a first translation drive member, and the first translation drive member drives and connects to a material pulling rack 250. The first translation drive member can drive the material pulling rack 250 to move left and right. The material pulling rack 250 is located on a side of the pipe pressing rack 210 away from the pipe feeding seat 410. The material pulling rack 250 is provided with a hole 251 that passes through in the left and right directions. The material pulling rack 250 is connected to a second lifting drive member, and the second lifting drive member can be installed on a side of the material pulling rack 250 away from the pipe pressing rack 210, thereby reducing the gap between the material pulling rack 250 and the pipe pressing rack 210. The second lifting drive member can be installed on a side of the material pulling rack 250 away from the pipe pressing rack 210, thereby reducing the gap between the material pulling rack 250 and the pipe pressing rack 210. The driving member is connected to the material pulling plate 260, and the second lifting driving member can drive the material pulling plate 260 to move up and down in the hole 251. In actual application, a second guide rail extending along the left and right direction can be set on the top side of the pipe pressing rack 210, and a second slide groove extending along the left and right direction can be also set on the material pulling rack 250. Through the mutual cooperation of the second guide rail and the second slide groove, a sliding connection can be directly formed between the material pulling rack 250 and the pipe pressing rack 210, thereby further improving the sliding stability of the material pulling rack 250. Similarly, for the material pulling plate 260, a plurality of second guide pillars can be connected to the top side of the material pulling plate 260, and a sliding connection is formed between the plurality of second guide pillars and the material pulling rack 250, which can improve the stability of the up and down movement of the material pulling plate 260.

[0034] In this embodiment, before preparing to cut the pipe, the pipe passes through the pipe pressing space and then extends into the hole 251. The second lifting drive member drives the pulling plate 260 to move downward in the hole 251, pressing the pipe to the position of the pulling rack 250 at the bottom side of the hole 251. At this time, the left and right sides of the position where the pipe is to be cut are respectively pressed and positioned, which greatly improves the stability of the pipe during cutting, reduces the deviation or vibration of the pipe during processing, and further improves the quality of pipe processing. When the pipe is cut, the first translation drive member drives the pulling rack 250 to move away. The cutting blade 320 moves in the direction away from the pressing tube rack 210 to pull the cut tube away from the blade 320. At this time, the blade 320 returns to its original position, which can reduce the friction between the blade 320 and the end of the tube, thereby reducing the burrs on the end of the tube and improving the cutting quality of the tube. Finally, the second lifting drive member drives the pulling plate 260 to move upward and reset, thereby loosening the cut tube. In addition, when the length of the tube to be cut is small, the pulling plate 260 can be used to compress the tube and then pull the tube to a suitable position. This can improve the utilization rate of the tube and reduce the discard of the tube.

[0035] In some embodiments, a receiving plate 270 is connected to the side of the material drawing rack 250 away from the tube pressing rack 210, and the receiving plate 270 is located below the hole 251. Since the receiving plate 270 is located below the hole 251, there is a height difference between the position of the material drawing rack 250 at the bottom side of the hole 251 and the receiving plate 270, forming a step structure. When the material drawing plate 260 presses the pipe to the bottom side of the hole 251 of the material drawing rack 250, the pipe is still located above the receiving plate 270. When the material drawing plate 260 moves up and away from the pipe, the cut pipe falls onto the receiving plate 270, so that the cut pipe automatically falls into the receiving plate 270, avoiding entering the side of the material drawing rack 250 facing the tube pressing rack 210 and affecting the next pipe cutting.

[0036] In practical applications, the receiving plate 270 is located above the knife seat 310, and the top side of the knife seat 310 can be a plane. In this case, the receiving plate 270 can be directly arranged above the knife seat 310, so that the overall structure is more compact.

[0037] When there are multiple pipes, the multiple pipes are arranged side by side in the pipe pressing space along the front-to-back direction. In order to make the structure of the pipes more compact when arranged, in the present embodiment, the pulling rack 250 is connected with a second translation drive member 280, and the second translation drive member 280 is drivingly connected with a first side pressure plate 290. The second translation drive member 280 can drive the first side pressure plate 290 to move forward and backward in the hole 251. In actual application, in order to improve the stability of the movement of the first side pressure plate 290, a third guide column extending along the front-to-back direction can be provided in the pulling rack 250, the third guide column is passed through the first side pressure plate 290, and a sliding structure is provided between the third guide column and the first side pressure plate 290, so that the first side pressure plate 290 has better stability when sliding. When the pipe is inserted into the hole 251, the second translation drive 280 can drive the first side pressure plate 290 to press against one side of the pipe. At this time, a single pipe or multiple pipes can be clamped and limited in the front-to-back direction, further reducing the deviation of the pipe during the cutting process and improving the stability of the pipe processing.

[0038] The pipe delivery structure is mainly used to form a pipe clamping space that can be opened and closed up and down. It can also use two independent driving sources to drive the two plates to move up and down, so as to form a pipe clamping space between the two plates. In this embodiment, Figure 4As shown, the tube delivery mechanism 400 includes a tube clamping portion, and the tube clamping portion includes a third translation drive member, a third lifting drive member 420 and a clamping plate 430. The third translation drive member is connected to the frame 100, and the third translation drive member is driven to connect to the tube delivery seat 410. The third translation drive member can drive the tube delivery seat 410 to move left and right. The third translation drive member has various structural forms, such as an electric screw, a cylinder or a hydraulic cylinder, etc. In order to better control the movement accuracy of the tube delivery seat 410, the third translation drive member can use an electric screw. The third lifting drive member 420 is connected to the tube delivery seat 410, and the third lifting drive member 420 is driven to connect to the clamping plate 430. The tube clamping space is formed between the clamping plate 430 and the tube delivery seat 410, and the third lifting drive member 420 can drive the clamping plate 430 to move up and down. The third lifting drive 420 can provide a driving force in the up and down directions to the clamping plate 430. Before positioning the pipe, the third lifting drive drives the clamping plate 430 to move upward, and the pipe clamping space between the clamping plate 430 and the pipe delivery seat 410 is opened. Then the pipe is inserted into the pipe clamping space. The third lifting drive drives the clamping plate 430 to move downward, and the pipe clamping space between the clamping plate 430 and the pipe delivery seat 410 is closed to clamp the pipe in position. When the pipe needs to be shifted during operation, the third translation drive drives the pipe delivery seat 410 to move left and right to move close to or away from the pipe pressing space.

[0039] In actual applications, in order to improve the stability of the activity of the tube delivery seat 410, a third slide groove extending in the left-right direction may be provided on the bottom side of the tube delivery seat 410, and a third guide rail extending in the left-right direction may be provided on the frame 100. The tube delivery seat 410 may slide in the left-right direction on the frame 100 through the sliding fit connection between the third guide rail and the third slide groove. In order to improve the activity stability of the splint 430, a plurality of fourth guide columns may be connected to the top side of the splint 430. The plurality of third guide columns may pass upward through the tube delivery seat 410. The sliding fit connection formed between the third guide column and the tube delivery seat 410 may make the splint 430 more stable during the sliding process.

[0040] When there are multiple pipes, a structure for limiting the position in the front-to-back direction can also be provided at the tail of the pipe, so that the multiple pipes can be arranged more closely in the front-to-back direction. Specifically, the pipe feeding mechanism 400 also includes a fourth translation driving member and a second side pressing plate 440. The fourth translation driving member is connected to the pipe feeding seat 410, and the fourth translation driving member drives the second side pressing plate 440. The fourth translation driving member can drive the second side pressing plate 440 to move forward and backward. In practical applications, a fifth guide column extending in the front-to-back direction can be provided in the pipe feeding seat 410, and the fifth guide column slides through the second side pressing plate 440, so as to improve the stability of the front-to-back movement of the second side pressing plate 440. When the pipe is extended into the pipe clamping space, the fourth translation driving member drives the second side pressing plate 440 to approach the pipe, and at this time, a single pipe or multiple pipes can be pressed and limited in the front-to-back direction, further reducing the deviation of the tail of the pipe during feeding or cutting, and improving the stability of pipe processing.

[0041] In the above embodiment, the number of the clamping parts can be one, and in this case, the tail of the pipe is subjected to a clamping force in the front-to-back direction at one position and a clamping force in the up-down direction at another position. In order to further improve the clamping effect on the tail of the pipe, in this embodiment, two clamping parts are provided in the left-right direction, and the second side pressure plate 440 is located between the two clamping parts. There are two clamping parts at the tail of the pipe to clamp and limit the pipe in the up-down direction, and there is a clamping and limiting part for the pipe in the front-to-back direction between the two clamping parts, which further improves the stability of the clamping and limiting part of the pipe.

[0042] In actual applications, the first lifting drive 220, the first translation drive, the second lifting drive, the second translation drive 280, the third lifting drive 420 and the fourth translation drive are mainly used to provide driving force for reciprocating motion in a linear direction, and their structural forms include electric screws, cylinders or hydraulic cylinders.

[0043] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A pipe cutting machine, characterized in that: include: Rack(100); The pipe pressing mechanism (200) has a pipe pressing space formed therein which can be opened and closed upwards and downwards; The pipe cutting mechanism (300) comprises a knife seat (310) which can move forward and backward on the frame (100); a rotatable blade (320) is arranged on the knife seat (310); the rotation axis of the blade (320) extends in the left-right direction; the blade (320) is located on one side of the pipe pressing space; the top side of the blade (320) protrudes upward from the knife seat (310); the portion of the blade (320) protruding from the knife seat (310) can be directly opposite to or staggered from the pipe pressing space; stabilizing blocks (330) are respectively arranged at the left and right sides of the blade (320) in the knife seat (310); the two stabilizing blocks (330) are respectively close to the left and right sides of the blade (320); The tube delivery mechanism (400) is located at the other side of the tube pressing space. The tube delivery mechanism (400) has a tube delivery seat (410) that can move left and right on the frame (100). The tube delivery seat (410) has a tube clamping space that can be opened and closed up and down.

2. A pipe cutting machine according to claim 1, characterized in that: The pipe cutting mechanism (300) comprises a driving motor (340) and a reduction gear set, wherein the reduction gear set is arranged in the knife seat (310), and the reduction gear set has an input shaft and an output shaft that transmit transmission to each other, the blade (320) is connected to the output shaft, and the driving motor (340) is connected to the side of the knife seat (310), and the driving motor (340) is transmission-connected to the input shaft.

3. A pipe cutting machine according to claim 1, characterized in that: The pipe pressing mechanism (200) comprises a pipe pressing frame (210), a first lifting drive member (220), an upper pressing plate (230) and a bottom plate (240); the pipe pressing frame (210) and the bottom plate (240) are both connected to the frame (100); the bottom plate (240) is located inside the pipe pressing frame (210); the first lifting drive member (220) is connected to the top side of the pipe pressing frame (210); the movable end of the first lifting drive member (220) extends downward into the pipe pressing frame (210) and is connected to the upper pressing plate (230); and the pipe pressing space is formed between the upper pressing plate (230) and the bottom plate (240).

4. A pipe cutting machine according to claim 3, characterized in that: The tube pressing frame (210) is connected to a first translation driving member, which is drivably connected to a material pulling frame (250), and the first translation driving member can drive the material pulling frame (250) to move left and right. The material pulling frame (250) is located on a side of the tube pressing frame (210) away from the tube feeding seat (410), and a hole (251) penetrating along the left and right directions is provided on the material pulling frame (250). The material pulling frame (250) is connected to a second lifting driving member, and the second lifting driving member is drivably connected to a material pulling plate (260), and the second lifting driving member can drive the material pulling plate (260) to move up and down in the hole (251).

5. A pipe cutting machine according to claim 4, characterized in that: A material receiving plate (270) is connected to a side of the material pulling rack (250) away from the pipe pressing rack (210), and the material receiving plate (270) is located below the hole (251).

6. A pipe cutting machine according to claim 4, characterized in that: The pulling rack (250) is connected to a second translation driving member (280), and the second translation driving member (280) is drivingly connected to a first side pressure plate (290). The second translation driving member (280) can drive the first side pressure plate (290) to move forward and backward in the hole (251).

7. A pipe cutting machine according to claim 1, characterized in that: The tube delivery mechanism (400) comprises a tube clamping portion, which comprises a third translation driving member, a third lifting driving member (420) and a clamping plate (430). The third translation driving member is connected to the frame (100), the third translation driving member is drivingly connected to the tube delivery seat (410), and the third translation driving member can drive the tube delivery seat (410) to move left and right. The third lifting driving member (420) is connected to the tube delivery seat (410), the third lifting driving member (420) is drivingly connected to the clamping plate (430), the tube clamping space is formed between the clamping plate (430) and the tube delivery seat (410), and the third lifting driving member (420) can drive the clamping plate (430) to move up and down.

8. A pipe cutting machine according to claim 7, characterized in that: The tube delivery mechanism (400) further comprises a fourth translation driving member and a second side pressure plate (440), wherein the fourth translation driving member is connected to the tube delivery seat (410), and the fourth translation driving member is drivingly connected to the second side pressure plate (440), and the fourth translation driving member can drive the second side pressure plate (440) to move forward and backward.

9. A pipe cutting machine according to claim 8, characterized in that: The tube clamping parts are provided with two in the left-right direction, and the second side pressure plate (440) is located between the two tube clamping parts.

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