Pipe cutting equipment

Abstract

The utility model discloses pipe cutting equipment which comprises a first clamp, an exhaust pipe, a first driving mechanism and a second driving mechanism, and the first clamp is used for installing a pipe; the exhaust pipe is arranged on one side of the first clamp, and an exhaust hole is formed in the side wall; the first driving mechanism is used for driving the first clamp and the exhaust pipe to move relatively, so that the end, with the exhaust hole, of the exhaust pipe can be inserted into a pipe or withdrawn from the pipe; and the second driving mechanism is used for driving the exhaust pipe to rotate, so that the exhaust hole can face downwards. When the pipe is cut, the exhaust pipe extends into the pipe, and the exhaust hole faces upwards and is opposite to the cutting area so as to suck smoke and molten particles generated by cutting and receive falling waste. And after cutting is completed, the exhaust pipe retreats from the pipe and rotates by a certain angle, the exhaust pipe is made to face downwards, large-size waste is poured out, and the situation that the exhaust pipe is blocked due to waste accumulation is avoided.

Description

Technical Field

[0001] The present application relates to the field of automation equipment, and in particular to a pipe cutting device. Background Art

[0002] Laser cutting machine is a kind of equipment that uses high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature, evaporated to form holes, and as the beam moves on the material, the holes continuously form a very narrow slit to complete the cutting of the material. When some pipes are cut, a certain amount of debris will be generated. The debris adheres to the inner wall of the pipe body, will oxidize and rust, and affect the service life of the pipe body. In some equipment, an exhaust pipe will be set inside the pipe to absorb the smoke and debris generated by cutting, but large pieces of waste generated by cutting may block the exhaust pipe. Utility Model Content

[0003] The present application proposes a pipe cutting device, which aims to solve the problem that large pieces of waste generated by pipe cutting may block the exhaust pipe.

[0004] The present application proposes a pipe cutting device, comprising:

[0005] A first clamp, used for installing the pipe;

[0006] An air extraction pipe is provided on one side of the first clamp, and an air extraction hole is provided on the side wall;

[0007] A first driving mechanism is used to drive the first clamp and the air extraction pipe to move relative to each other, so that the end of the air extraction pipe with the air extraction hole can be inserted into the pipe or withdrawn from the pipe;

[0008] The second driving mechanism is used to drive the air extraction pipe to rotate so that the air extraction hole can face downward.

[0009] In some embodiments, the tube cutting device further comprises a material stripping mechanism, which comprises a material stripping member and a material stripping driving member, wherein the material stripping driving member is used to drive the material stripping member to move so that the material stripping member can separate the waste material adhered to the tube cut from the tube.

[0010] In some embodiments, the side wall of the exhaust pipe is further provided with a material receiving groove on the same side as the exhaust hole, and the material receiving groove is located on the side of the exhaust hole close to the first clamp.

[0011] In some embodiments, the tube cutting device further comprises:

[0012] A driving device, disposed at the moving end of the first driving mechanism;

[0013] A laser cutting head, disposed at the moving end of the driving device;

[0014] The material-removing driving member is arranged at the moving end of the driving device and is located at one side of the laser cutting head; in the vertical direction, the laser cutting head corresponds to the air exhaust hole, and the material-removing member corresponds to the material receiving trough.

[0015] In some embodiments, a guide member is further provided in the exhaust pipe, and the guide member has a guide slope, the guide slope is located on one side of the exhaust hole, and the guide slope is arranged toward an end of the exhaust pipe away from the first clamp.

[0016] In some embodiments, the driving direction of the first driving mechanism is along the length direction of the exhaust pipe, the pipe cutting equipment also includes a mounting frame arranged at the movable end of the first driving mechanism, the second driving mechanism is connected to the exhaust pipe driving, and the central axis of the exhaust pipe is coaxial or parallel to the rotation center of the exhaust pipe.

[0017] In some embodiments, the second driving mechanism includes a second driving member disposed on the mounting frame, and a transmission assembly connecting the second driving member and the exhaust pipe; the transmission assembly includes a gear disposed on the exhaust pipe, and a rack meshing with the gear, and the second driving member is used to drive the rack to move.

[0018] In some embodiments, the first fixture comprises:

[0019] The receiving seat is used to place the pipe and radially position the pipe;

[0020] The clamping assembly is used to fix the pipe on the receiving seat.

[0021] In some embodiments, the tube cutting device further comprises a positioning mechanism, wherein the positioning mechanism comprises:

[0022] A positioning member, disposed on one side of the receiving seat, for axially limiting the end of the pipe;

[0023] The positioning drive member is used to drive the pipe to move along the length direction of the exhaust pipe so that the end of the pipe abuts against the positioning member.

[0024] In some embodiments, the positioning member is disposed on a side of the receiving seat facing the exhaust pipe, and the positioning mechanism further includes a third driving member, and the third driving member is used to drive the positioning member to move radially along the exhaust pipe.

[0025] In some embodiments, the first clamp includes a centering jaw, and the pipe cutting device further includes a rotating mechanism, and the rotating mechanism is used to drive the first clamp to rotate.

[0026] The pipe cutting equipment in the present application includes a first clamp, an exhaust pipe, a first driving mechanism and a second driving mechanism, wherein the first clamp is used to install the pipe; the exhaust pipe is arranged on one side of the first clamp, and the side wall is provided with an exhaust hole; the first driving mechanism is used to drive the first clamp and the exhaust pipe to move relative to each other, so that the end of the exhaust pipe with the exhaust hole can be inserted into the pipe, or withdrawn from the pipe; the second driving mechanism is used to drive the exhaust pipe to rotate so that the exhaust hole can face downward. When cutting the pipe, the exhaust pipe extends into the pipe, and the exhaust hole faces upward and opposite to the cutting area to absorb the smoke and molten particles generated by the cutting, and to receive the fallen waste. After the cutting is completed, the exhaust pipe withdraws from the pipe and rotates a certain angle so that the exhaust pipe faces downward, and large-sized waste is poured out to avoid waste accumulation and clogging the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a pipe cutting device in one embodiment of the present application;

[0028] Figure 2 for Figure 1 A schematic structural diagram of the pipe cutting device from another perspective in the embodiment;

[0029] Figure 3 for Figure 1 A schematic structural diagram of the pipe cutting device from another perspective in the embodiment;

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of the air extraction pipe in the embodiment.

[0031] Description of labels:

[0032] 1. Pipe; 10. First clamp; 11. Socket; 12. Clamping assembly; 121. Clamping member; 20. Exhaust pipe; 21. Exhaust hole; 22. Guide member; 23. Material receiving trough; 31. First drive mechanism; 32. Third drive mechanism; 33. Fourth drive mechanism; 40. Second drive mechanism; 41. Mounting frame; 42. Second drive member; 43. Gear; 44. Rack; 51. Positioning member; 52. Positioning drive member; 53. Positioning frame; 60. Material return mechanism; 61. Material return drive member; 62. Material return member; 70. Laser cutting head.

[0033] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the scheme in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments in the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0036] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0037] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0038] This application proposes a pipe cutting device, referring to Figures 1 to 4 The pipe cutting equipment includes: a first clamp 10, used to install the pipe 1; an exhaust pipe 20, which is arranged on one side of the first clamp 10 and has an exhaust hole 21 on the side wall; a first driving mechanism 31, used to drive the first clamp 10 and the exhaust pipe 20 to move relative to each other, so that the end of the exhaust pipe 20 with the exhaust hole 21 can be inserted into the pipe 1, or withdrawn from the pipe 1; a second driving mechanism 40, used to drive the exhaust pipe 20 to rotate so that the exhaust hole 21 can face downward.

[0039] In the embodiment of the present application, when the pipe cutting device is cutting the pipe 1, the pipe 1 is first positioned by the first clamp 10, and the first driving mechanism 31 drives the first clamp 10 and the pipe 1 to move toward the exhaust pipe 20 together, or the first driving mechanism 31 drives the exhaust pipe 20 to move toward the pipe 1, so that the exhaust pipe 20 extends into the pipe 1, and the exhaust hole 21 faces upward and is opposite to the cutting area. In order to absorb the smoke and molten particles generated by the cutting, and to receive the fallen waste. After the cutting is completed, the exhaust pipe 20 withdraws from the pipe 1 and rotates a certain angle so that the exhaust pipe 20 faces downward, and the large-sized waste is poured out to avoid the waste accumulation and blocking the exhaust pipe 20.

[0040] In some embodiments, reference Figures 1 to 4 , the driving direction of the first driving mechanism 31 is along the length direction of the exhaust pipe 20, the pipe cutting equipment also includes a mounting frame 41 arranged at the moving end of the first driving mechanism 31, the mounting frame 41 is rotatably connected to the exhaust pipe 20, the second driving mechanism 40 is drivingly connected to the exhaust pipe 20, and the central axis of the exhaust pipe 20 is coaxial or parallel to the rotation center of the exhaust pipe 20. In this embodiment, the exhaust pipe 20 can use its own center as the rotation center. Of course, in the case of a certain assembly error, the exhaust pipe 20 is also allowed to rotate eccentrically, and the eccentric distance can be controlled to ensure that the eccentric rotation does not collide with the inner wall of the pipe 1. The first driving mechanism 31 can be a cylinder or an electric cylinder, and the mounting frame 41 is arranged at the moving end of the electric cylinder. The exhaust pipe 20 is connected to the mounting frame 41 through a bearing, and a box is provided on the side of the mounting frame 41 away from the exhaust pipe 20, and the box is connected to an external vacuum pump to build a negative pressure in the exhaust pipe 20 and the box to extract smoke and molten particles. The second driving mechanism 40 may be a stepper motor, which is arranged on the mounting frame 41, and can directly drive the exhaust pipe 20 to rotate. It can also be connected to the exhaust pipe 20 through a guide wheel. Specifically, the guide wheel can be arranged on the rotating shaft of the stepper motor, and the circumference of the guide wheel is in contact with the outer wall of the exhaust pipe 20 to achieve transmission. Of course, the torque of the stepper motor can also be transmitted to the exhaust pipe 20 in the form of a gear set or a pulley transmission.

[0041] In some embodiments, reference Figures 1 to 4The second driving mechanism 40 includes a second driving member 42 disposed on the mounting frame 41, and a transmission assembly connecting the second driving member 42 and the exhaust pipe 20. The transmission assembly includes a gear 43 disposed on the exhaust pipe 20, and a rack 44 meshing with the gear 43. The second driving member 42 is used to drive the rack 44 to move. The gear 43 is disposed on the outer periphery of the exhaust pipe 20. The second driving member 42 can be a cylinder. The push rod of the cylinder is connected to the rack 44. The cylinder drives the rack 44 to move and can drive the gear 43 and the exhaust pipe 20 to rotate. Since the stroke of the cylinder is fixed, by controlling the radius and module of the gear 43 and the number of teeth of the rack 44, it can be ensured that the gear 43 and the exhaust pipe 20 can rotate 180 degrees to achieve the flipping of the exhaust hole 21. At the same time, this embodiment adopts the transmission of the cylinder and the gear 43 and the rack 44, which is lower in cost than the stepping motor.

[0042] In some embodiments, reference Figures 1 to 4 , the exhaust pipe 20 is also provided with a guide member 22, which has a guide slope, which is located on one side of the exhaust hole 21 and is arranged toward the end of the exhaust pipe 20 away from the first clamp 10. In this embodiment, the guide member 22 can be a ceramic member arranged in the exhaust pipe 20, which has the characteristics of high temperature resistance to withstand the high temperature generated by cutting and improve the service life of the dust extraction pipe. At the same time, the setting of the guide slope can make the molten particles generated by cutting rebound, change the direction of movement to make it move along the axial direction, and further improve the dust removal efficiency.

[0043] In some embodiments, reference Figures 1 to 4 , the side wall of the exhaust pipe 20 is also provided with a material receiving groove 23 on the same side as the exhaust hole 21, and the material receiving groove 23 is located on the side of the exhaust hole 21 close to the first clamp 10. The large-sized waste generated when the pipe 1 is cut may block the exhaust hole 21. At the end of the cutting process, the first driving mechanism 31 can drive the exhaust pipe 20 to withdraw a distance so that the material receiving groove 23 is opposite to the waste to receive the larger-sized waste and avoid blocking the exhaust hole 21. Of course, a partition can also be set between the material receiving groove 23 and the exhaust hole 21 to avoid affecting the suction force at the exhaust hole 21 and the dust extraction efficiency due to the opening being too large. After the cutting is completed, the exhaust pipe 20 withdraws and rotates a certain angle, and the waste is poured out from the material receiving groove 23. The material receiving groove 23 can be a notch set on the side wall of the exhaust pipe 20, or a half groove formed by cutting half of the end of the exhaust pipe 20.

[0044] In some embodiments, reference Figures 1 to 4The first clamp 10 includes: a receiving seat 11 for placing the pipe 1 and radially positioning the pipe 1; a clamping assembly 12 for fixing the pipe 1 on the receiving seat 11. The receiving seat 11 includes a plurality of positioning blocks distributed along the axial direction, and the positioning blocks are provided with V-shaped grooves to radially position the pipe fitting. The clamping assembly 12 can be optionally provided with a rotating downward-pressing cylinder on one side of the pipe fitting. A downward-pressing piece is provided at the end of its push rod. The push rod also moves and rotates during the extension and retraction process. When fixing the pipe 1, the downward-pressing piece moves downward and rotates a certain angle to approach and hold the pipe 1. After the cutting is completed, the downward-pressing piece moves upward and rotates a certain angle away from the pipe 1, and is on one side of the pipe 1.

[0045] In some embodiments, reference Figures 1 to 4 The pipe cutting device also includes a positioning mechanism, which includes: a positioning member 51, which is arranged on one side of the receiving seat 11 and is used to axially limit the end of the pipe 1; a positioning driving member 52, which is used to drive the pipe 1 to move along the length direction of the exhaust pipe 20, so that the end of the pipe 1 abuts against the positioning member 51. In this embodiment, the positioning member 51 can be a stopper, which can be arranged at one end of the pipe 1 close to the exhaust pipe 20, or at one end of the pipe 1 away from the exhaust pipe 20. In one embodiment, the stopper is arranged at one end of the pipe 1 away from the exhaust pipe 20. The positioning driving member 52 can also be selected to be a rotary downward pressure cylinder at the other end of the pipe 1, and the cylinder body is located on one side of the pipe 1, and a push block is arranged at the end of its push rod. The push block also has a certain amount of rotation when it moves. When the pipe 1 is axially positioned. The push block moves along the axial direction, and also swings from the outside of the pipe 1 to the center of the pipe 1, and then contacts the end of the pipe 1, and the pipe 1 abuts against the positioning member 51. After the axial positioning is completed, the clamping assembly 12 clamps the pipe 1. The push block is reset away from the pipe 1 to avoid interference with the exhaust pipe 20.

[0046] In some embodiments, reference Figures 1 to 4 The positioning member 51 is arranged on the side of the receiving seat 11 facing the exhaust pipe 20. The positioning mechanism also includes a third driving member (not shown in the figure). The third driving member is used to drive the positioning member 51 to move radially along the exhaust pipe 20. The positioning driving member 52 can be an air cylinder. When axial positioning is required, the third driving member drives the positioning member 51 to rise and be between the pipe 1 and the exhaust pipe 20. The positioning frame 53 on the positioning driving member 52 pushes the pipe 1 to abut against the positioning member 51. After the axial positioning is completed, the clamping assembly 12 clamps the pipe 1. The third driving member drives the positioning member 51 to descend and move away from the pipe 1 to avoid blocking the movement path of the exhaust pipe 20.

[0047] In some embodiments, reference Figures 1 to 4The pipe cutting device also includes a material stripping mechanism 60, which includes a material stripping member 62 and a material stripping driving member 61. The material stripping driving member 61 is used to drive the material stripping member 62 to move, so that the material stripping member 62 can separate the waste material adhering to the slit of the pipe 1 from the pipe 1. The material stripping driving member 61 can be a material stripping cylinder located above the first clamp 10, and the material stripping member 62 is arranged at the moving end of the material stripping cylinder and faces the first clamp 10. When there is a large size of waste material adhering inside the pipe 1, the material stripping driving member 61 can drive the material stripping member 62 downward and push the waste material away from the slit. And enter the above-mentioned air extraction hole 21 or material receiving trough 23.

[0048] In some embodiments, reference Figures 1 to 4 The pipe cutting equipment also includes: a driving device, which is arranged at the moving end of the first driving mechanism 31; a laser cutting head 70, which is arranged at the moving end of the driving device; a material stripping driving member 61 is arranged at the moving end of the driving device and is located on one side of the laser cutting head 70; in the vertical direction, the laser cutting head 70 corresponds to the exhaust hole 21, and the material stripping member 62 corresponds to the material receiving groove 23.

[0049] It is worth noting that the above-mentioned material return mechanism 60 can be connected to the first driving mechanism 31 by driving, and is opposite to the above-mentioned air extraction hole 21 or the material receiving groove 23 in the vertical direction. Of course, the laser cutting head 70 can also be connected to the first driving mechanism 31 by driving, and the laser cutting head 70 is opposite to the air extraction hole 21 in the vertical direction. The material return mechanism 60 is arranged on one side of the laser cutting head 70, and is opposite to the material receiving groove 23 in the vertical direction. A driving device can also be arranged between the laser cutting heads 70, and the driving device includes a third driving mechanism 32 and a fourth driving mechanism 33. The first driving mechanism 31, the third driving mechanism 32 and the fourth driving mechanism 33 constitute a three-axis orthogonal driving mechanism, and the third driving mechanism 32 and the fourth driving mechanism are respectively used to drive the laser cutting head 70 to rise and fall and translate. After the cutting is completed, the air extraction pipe 20 is withdrawn a certain distance so that the material receiving groove 23 corresponds to the cutting area, and the upper material return member 62 moves downward to push the large-sized waste in the cutting area away from the pipe 1, and is received by the material receiving groove 23. Then the suction pipe 20 is completely withdrawn and rotated to a certain angle so that the waste can be poured out.

[0050] In some embodiments, reference Figures 1 to 4 The first clamp 10 includes a centering jaw, and the pipe cutting device further includes a rotating mechanism, which is used to drive the first clamp 10 to rotate. The rotating mechanism can drive the pipe 1 to rotate around its own central axis, thereby cutting various places around the pipe 1.

[0051] Working principle of the pipe cutting equipment in this application:

[0052] The pipe cutting device in the present application includes a first clamp 10, an exhaust pipe 20, a first driving mechanism 31 and a second driving mechanism 40, wherein the first clamp 10 is used to install the pipe 1; the exhaust pipe 20 is arranged on one side of the first clamp 10, and the side wall is provided with an exhaust hole 21; the first driving mechanism 31 is used to drive the first clamp 10 or the exhaust pipe 20 to move relative to each other, so that the end of the exhaust pipe 20 with the exhaust hole 21 can be inserted into the pipe 1, or withdraw from the pipe 1; the second driving mechanism 40 is used to drive the exhaust pipe 20 to rotate so that the exhaust hole 21 can face downward. When cutting the pipe 1, the exhaust pipe 20 extends into the pipe 1, and the exhaust hole 21 faces upward and opposite to the cutting area to absorb the smoke and molten particles generated by the cutting, and to receive the fallen waste. After the cutting is completed, the exhaust pipe 20 withdraws from the pipe 1 and rotates a certain angle so that the exhaust pipe 20 faces downward, and the large-sized waste is poured out to avoid the accumulation of waste and blocking the exhaust pipe 20.

[0053] The above are only partial or preferred embodiments of the present application. Neither the text nor the drawings can limit the scope of protection of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the overall concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A pipe cutting device, characterized in that: include: A first clamp, used for installing the pipe; An air extraction pipe is provided on one side of the first clamp, and an air extraction hole is provided on the side wall; A first driving mechanism is used to drive the first clamp and the air extraction pipe to move relative to each other, so that the end of the air extraction pipe with the air extraction hole can be inserted into the pipe or withdrawn from the pipe; The second driving mechanism is used to drive the air extraction pipe to rotate so that the air extraction hole can face downward.

2. The pipe cutting device according to claim 1, characterized in that: The pipe cutting equipment also includes a material stripping mechanism, which includes a material stripping member and a material stripping driving member, wherein the material stripping driving member is used to drive the material stripping member to move so that the material stripping member can separate the waste material adhering to the pipe cut from the pipe.

3. The pipe cutting device according to claim 2, characterized in that: The side wall of the air extraction pipe is further provided with a material receiving groove on the same side as the air extraction hole, and the material receiving groove is located on a side of the air extraction hole close to the first clamp.

4. The pipe cutting device according to claim 3, characterized in that: The pipe cutting equipment also includes: A driving device, disposed at the moving end of the first driving mechanism; A laser cutting head, disposed at the moving end of the driving device; The material-removing driving member is arranged at the moving end of the driving device and is located at one side of the laser cutting head; in the vertical direction, the laser cutting head corresponds to the air exhaust hole, and the material-removing member corresponds to the material receiving trough.

5. The tube cutting device according to claim 1, characterized in that: A guide member is also provided in the air extraction pipe. The guide member has a guide slope. The guide slope is located on one side of the air extraction hole. The guide slope is arranged toward an end of the air extraction pipe away from the first clamp.

6. The tube cutting device according to claim 1, characterized in that: The driving direction of the first driving mechanism is along the length direction of the exhaust pipe. The pipe cutting equipment also includes a mounting frame arranged at the movable end of the first driving mechanism. The second driving mechanism is connected to the exhaust pipe driving, and the central axis of the exhaust pipe is coaxial or parallel to the rotation center of the exhaust pipe.

7. The pipe cutting device according to claim 6, characterized in that: The second driving mechanism includes a second driving member arranged on the mounting frame, and a transmission assembly connecting the second driving member and the exhaust pipe; the transmission assembly includes a gear arranged on the exhaust pipe, and a rack meshing with the gear, and the second driving member is used to drive the rack to move.

8. The pipe cutting device according to claim 1, characterized in that: The first fixture comprises: The receiving seat is used to place the pipe and radially position the pipe; The clamping assembly is used to fix the pipe on the receiving seat.

9. The tube cutting device according to claim 8, characterized in that: The pipe cutting device further comprises a positioning mechanism, wherein the positioning mechanism comprises: A positioning member, disposed on one side of the receiving seat, for axially limiting the end of the pipe; The positioning drive member is used to drive the pipe to move along the length direction of the exhaust pipe so that the end of the pipe abuts against the positioning member.

10. The pipe cutting device according to claim 9, characterized in that: The positioning member is arranged on a side of the receiving seat facing the exhaust pipe, and the positioning mechanism further comprises a third driving member, and the third driving member is used to drive the positioning member to move along the radial direction of the exhaust pipe.

11. The tube cutting device according to claim 1, characterized in that: The first clamp includes a centering jaw, and the pipe cutting device also includes a rotating mechanism, and the rotating mechanism is used to drive the first clamp to rotate.

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