CN112388131B - Intersecting line auxiliary cutting device - Google Patents
Intersecting line auxiliary cutting device Download PDFInfo
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- CN112388131B CN112388131B CN202011279197.9A CN202011279197A CN112388131B CN 112388131 B CN112388131 B CN 112388131B CN 202011279197 A CN202011279197 A CN 202011279197A CN 112388131 B CN112388131 B CN 112388131B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 135
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 238000003754 machining Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003698 laser cutting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
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Abstract
The invention provides an intersecting line auxiliary cutting device which comprises a workpiece clamping mechanism, a cutting executing mechanism, a rotary driving device and a power supply assembly. The cutting executing mechanism and the rotary driving device are respectively connected with the power supply assembly. The workpiece clamping mechanism comprises a roller clamp, and a rotary driving device is connected with the roller clamp and used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate. The cutting executing mechanism is arranged on one side of the workpiece clamping mechanism and comprises a cutting driving device and a cutting tool bit. The cutting tool bit is connected with the cutting driving device and driven by the cutting driving device to do left and right feeding movement along the axial direction of the pipe fitting so as to cut the pipe fitting. According to the automatic cutting device, the roller clamp drives the pipe fitting to rotate, and the cutting driving device drives the combined motion of the left and right feeding motions of the cutting tool bit to automatically cut the intersecting line, so that the cutting mode is simpler, the efficiency is higher, and the cutting process is more stable and accurate.
Description
Technical Field
The invention relates to the technical field of pipe cutting, in particular to an intersecting line auxiliary cutting device.
Background
With the development of modern mechanical processing industry, pipe fittings are required in various aspects of automobiles, infrastructure, pipeline transportation and the like, the application of pipe fitting materials is ubiquitous, and simultaneously, higher requirements are also put on the connection processing of the pipe fittings, for example, strict standards are arranged on the connection of high-precision gas-liquid transmission pipelines, because the key point of a pipeline transmission system is the connection position of the pipe fittings. The connection of the precise pipe fittings needs to ensure that the intersecting line cuts of the two connecting pipe fittings can be completely matched, so that strict requirements are also imposed on the cutting equipment of the pipe fittings. Along with the continuous improvement of the quality and precision requirements of workpiece cutting, the equipment requirements of improving the production efficiency, reducing the production cost and having a high intelligent automatic cutting function are also improved.
In industrial production, metal thermal cutting generally includes gas cutting, plasma cutting, laser cutting, and the like. Compared with gas cutting, the plasma cutting has wider cutting range and higher efficiency. While fine plasma cutting techniques have approached the quality of laser cutting in terms of the quality of the cut surface of the material, the cost is far lower than laser cutting. This has prompted the progress of plasma cutting technology from manual or semi-automatic to numerical control and has become one of the main directions of numerical control cutting technology development.
At present, the pipe intersecting line cutting mode mainly adopts plasma cutting. Plasma is an energized high temperature gas and plasma cutting is a process technique that utilizes the arc plasma therein to remove pipe material. The plasma cutting mode of intersecting lines for metal pipe fittings at present mainly comprises manual cutting, profiling cutting and numerical control machining cutting. When the pipe fitting is cut manually, the template is firstly manufactured, drawn and manually lofted, and then the pipe fitting is cut manually and polished manually. The cutting mode has complicated procedures and low production efficiency, and meanwhile, certain danger exists for operators in the processing process, so that the cutting mode has less application in actual industrial production. The profiling cutting is to fix the processed pipe and the processed model pipe on the same axis, and a pulley ejector rod device is additionally arranged at one end of the model and is fixed with a central rotating shaft. When the main shaft rotates, the pulley moves on the intersecting line of the model, and the ejector rod is pushed to feed back and forth along with the track change of the intersecting line, so that the cutting head can cut a notch consistent with the model on the pipe fitting. The machining mode can ensure accurate machining track line, but model pipe fittings with corresponding pipe diameters are required to be prepared, the cutting range is relatively fixed, and the machining mode is not suitable for machining with requirements on pipe diameter change. The numerical control machining and cutting can directly machine the pipe through the numerical control machine tool, the machining is quick, the precision is high, and the machining cost is relatively high.
Disclosure of Invention
The invention provides an intersecting line auxiliary cutting device, which aims to solve the problems that the efficiency of manually cutting a pipe is low, the numerical control machining and cutting cost is high and the like.
The invention is realized in the following way:
The intersecting line auxiliary cutting device is characterized by comprising a workpiece clamping mechanism for clamping a pipe fitting, a cutting executing mechanism, a rotary driving device and a power supply assembly, wherein the cutting executing mechanism and the rotary driving device are respectively connected with the power supply assembly;
The workpiece clamping mechanism comprises a roller clamp, and the rotary driving device is connected with the roller clamp and is used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate;
the cutting executing mechanism is arranged on one side of the workpiece clamping mechanism and comprises a cutting driving device and a cutting tool bit, wherein the cutting tool bit is connected with the cutting driving device and driven by the cutting driving device to do left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting.
Further, in a preferred embodiment of the present invention, the intersecting line assisted cutting device further includes a frame, the workpiece clamping mechanism is disposed on a base of the frame, and the cutting driving device is disposed on a beam of the frame.
Further, in a preferred embodiment of the present invention, the workpiece clamping mechanism further includes a rack driving mechanism and two roller adjusting devices separately disposed at two ends of the roller fixture, each of the roller adjusting devices includes a gear, and an internal rack and an external rack separately disposed at two sides of the gear in parallel, and the rack driving mechanism is respectively connected with the two internal racks and is used for driving the internal racks to move, so as to drive the gear to rotate and drive the external rack to move along a direction opposite to the moving direction of the internal racks.
Further, in a preferred embodiment of the present invention, the rack driving mechanism includes a screw, a first screw slider and a rocker, the rocker is disposed at one end of the screw, the first screw slider is sleeved on the screw, and the first screw slider can reciprocate along an axial direction of the screw when the screw rotates, two ends of the first screw slider are respectively connected with the internal tooth bar, and the rotation driving device includes two first stepping motors, and the first stepping motors are respectively disposed at two ends of the first screw slider.
Further, in a preferred embodiment of the present invention, the roller fixture includes two driving wheels and two driven wheels symmetrically disposed with respect to the driving wheels, the two driving wheels are respectively connected with the first stepping motor on the same side thereof, and the two driven wheels are respectively connected with the external gear on the same side thereof.
Further, in a preferred embodiment of the present invention, the cutting driving device includes a feeding screw, a second stepping motor, and a second screw slider sleeved on the feeding screw, two ends of the feeding screw are rotatably connected with the cross beam, one end of the feeding screw is further connected with the second stepping motor, and the cutting bit is connected with the second screw slider.
Further, in a preferred embodiment of the present invention, two ends of the feed screw are connected to the frame through a limit switch, respectively.
Further, in a preferred embodiment of the present invention, the cutting bit is a plasma bit, and the plasma bit is detachably connected to the second screw slider through a cutting bit clamping structure.
Further, in a preferred embodiment of the present invention, the intersecting line assisted cutting device further includes a controller and a control panel, wherein the controller is connected to the first stepper motor, the second stepper motor, the control panel and the power supply assembly, respectively.
Further, in a preferred embodiment of the present invention, the controller control panel is provided with at least a reset button for resetting the cutter head to an intermediate position and a pipe size input module for selecting a pipe size.
The beneficial effects of the invention are as follows:
The intersecting line auxiliary cutting device comprises a workpiece clamping mechanism, a cutting executing mechanism, a rotary driving device and a power supply assembly. The workpiece clamping mechanism comprises a roller clamp, and a rotary driving device is connected with the roller clamp and used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate. The cutting executing mechanism comprises a cutting driving device and a cutting tool bit, wherein the cutting tool bit is connected with the cutting driving device and driven by the cutting driving device to do left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting. According to the automatic cutting device, the roller clamp drives the pipe fitting to rotate, and the cutting driving device drives the combined motion of the left and right feeding motions of the cutting tool bit to automatically cut intersecting lines. Compared with the traditional manual scribing cutting mode, the method has the advantages that the cutting mode is simpler, the efficiency is higher, and the cutting process is more stable and accurate. Compared with the numerical control machining and cutting mode, the cost is lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an intersecting line assisted cutting device according to an embodiment of the invention;
FIG. 2 is a front view of an intersecting line assisted cutting device according to an embodiment of the invention;
FIG. 3 is a left side view of the intersecting line assisted cutting device shown in FIG. 2;
FIG. 4 is a top view of the intersecting line assisted cutting device shown in FIG. 2;
Fig. 5 is a partial enlarged view of a roller adjusting device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1 to 4, the invention provides an intersecting line auxiliary cutting device, which comprises a workpiece clamping mechanism 1 for clamping a pipe fitting 3, a cutting executing mechanism 2, a rotary driving device and a power supply assembly. The cutting executing mechanism 2 and the rotary driving device are respectively connected with a power supply assembly.
Referring to fig. 1 and 2, in this embodiment, the workpiece clamping mechanism 1 includes a roller fixture 11, and the rotation driving device is connected to the roller fixture 11 and is used for driving the roller fixture 11 to rotate, so as to drive the pipe 3 to rotate.
Referring to fig. 1, in this embodiment, the cutting actuator 2 is provided on one side of the workpiece clamping mechanism 1. The cutting actuator 2 comprises a cutting drive and a cutting bit 21. The cutting head 21 is connected with a cutting driving device and driven by the cutting driving device to do left and right feeding motion along the axial direction of the pipe fitting 3 so as to cut the pipe fitting 3.
The roller clamp 11 can drive the pipe fitting 3 to rotate, and the cutting driving device can drive the cutting tool bit 21 to do left and right feeding movement. Corresponding intersecting lines can be automatically cut through the combined movement of the two. Compared with the traditional manual scribing cutting mode, the method has the advantages that the cutting mode is simpler and more efficient, the cutting speed can reach more than 10m/min, and the cutting process is more stable and accurate. Compared with the numerical control machining and cutting mode, the cost is lower.
Referring to fig. 1, in this embodiment, the intersecting line assisted cutting device further includes a frame 4. The workpiece clamping mechanism 1 is arranged on a base 41 of the frame 4, and the cutting driving device is arranged on a beam 42 of the frame 4.
Referring to fig. 1, 3 and 5, in this embodiment, the workpiece clamping mechanism 1 further includes a rack driving mechanism and two roller adjusting devices separately disposed at two ends of the roller clamp 11. Each roller adjusting device comprises a gear 12, an inner tooth bar 13 and an outer tooth bar 14 which are arranged on two sides of the gear in parallel. The rack driving mechanism is respectively connected with the two inner racks 13 and is used for driving the inner racks 13 to move, so as to drive the gear 12 to rotate and drive the outer racks 14 to move along the direction opposite to the moving direction of the inner racks 13.
Referring to fig. 1, in particular, the rack driving mechanism includes a screw 15, a first screw slider 16, and a rocker 17. The rocker 17 is arranged at one end of the screw rod 15. The first screw slider 16 is sleeved on the screw 15, and the first screw slider 16 can reciprocate along the axial direction of the screw 15 when the screw 15 rotates. Both ends of the first screw slider 16 are connected to the internal tooth bars 13, respectively. The rotary drive means comprise two first stepper motors 5. The first stepping motor 5 is respectively arranged at two ends of the first screw rod sliding block 16. When the pipe fittings 3 with different pipe diameters are fixed on the roller clamp 11, the rocker 17 drives the screw rod 15 to rotate, so that the first screw rod sliding block 16 moves linearly along the screw rod 15 and drives the inner rack 13 to slide. Since the inner rack 13 and the outer rack 14 are connected through the gear 12, when the inner rack 13 slides, the outer rack 14 can slide along the direction opposite to the movement direction of the inner rack 13 under the driving of the gear 12, so as to realize the rapid adjustment of the roller clamp 11.
Referring to fig. 1 and 3, in the present embodiment, the roller clamp 11 includes two driving wheels 111 and two driven wheels 112 symmetrically disposed with respect to the driving wheels 111, respectively. The two driving wheels 111 are respectively connected with the first stepping motor 5 on the same side, and the two driven wheels 112 are respectively connected with the outer racks 14 on the same side.
When the intersecting line auxiliary cutting device works, the first stepping motor 5 can drive the driving wheel 111 to rotate, so as to drive the pipe fitting 3 to rotate, and the driven wheel 112 is used as an auxiliary wheel to rotate. Through the design, the pipe fitting 3 can be guaranteed to stably rotate on the roller clamp, the pipe fitting 3 does not need to be fixedly clamped like a traditional chuck clamp, quick feeding and discharging can be realized, and the time for clamping and positioning is greatly saved, so that the machining efficiency is improved. In addition, in the adjusting process, the driving wheel 111 and the driven wheel 112 can be simultaneously drawn close to or expanded towards the central axis of the roller clamp 11, so that the central axis of the roller clamp 11 is unchanged in the adjusting process, and the purpose of quickly and accurately adjusting the radius of the pipe fitting 3 is achieved. In the preferred embodiment of the present invention, the roller clamp 11 is made of a high damping polyacrylate material to ensure that the roller clamp 11 can stably rotate the pipe 3.
Referring to fig. 1 and 4, in the present embodiment, the cutting driving device includes a feed screw 22, a second stepping motor 23, and a second screw slider 24 sleeved on the feed screw 22. Both ends of the feed screw 22 are rotatably connected to the cross member 42, respectively, and one end of the feed screw 22 is also connected to the second stepping motor 23. The cutting head 21 is connected to a second screw slide 24. The feed screw 22 can be driven to rotate by the second stepping motor 23, so that the second screw slider 24 and the cutting bit 21 arranged on the second screw slider 24 are driven to do left-right feed motion, and the pipe 3 is cut. Because the central axis of the roller clamp 11 and the axial direction of the cutting tool bit 21 are positioned on the same plumb face, automatic centering can be realized when the pipe fitting 3 is placed, the procedure is simple, and the roller clamp 11 is not required to be aligned again after being adjusted.
In order to facilitate an understanding of the invention, some preferred embodiments of the invention are described further below.
Referring to fig. 1, in a preferred embodiment, two ends of the feed screw 22 are connected to the frame 4 through a limit switch 6, respectively. By setting the limit switch 6, the accurate limit of the second screw slider 24 can be ensured.
Referring to fig. 1, in a preferred embodiment, the cutting bit 21 is a plasma bit. The cutting precision of the plasma cutter head is higher than that of flame cutting, so that the accurate cutting of intersecting lines can be ensured. The plasma tool bit is detachably connected with the second screw slider 24 through a cutting tool bit clamping structure 25. Because the cutter head 21 is detachably connected with the second screw rod sliding block 24, the cutter head 21 is convenient to replace, and the height of the cutter head 21 can be adjusted according to the pipe diameter of the pipe fitting 3 when different pipe fittings 3 are cut, so that accurate cutting is realized.
In another preferred embodiment, the intersecting line assisting cutting device further comprises a controller and a control panel. The controller is connected with the first stepping motor 5, the second stepping motor 23, the control panel and the power supply assembly respectively. The controller controls the rotation speed of the first stepping motor 5 and the second stepping motor 23, so as to control the rotation speed of the pipe fitting 3 and the feeding speed of the cutting bit 21, and finally ensures the stable rotation of the pipe fitting 3 and the accurate cutting of the cutting bit 21 in the cutting process.
In a preferred embodiment, the controller control panel is provided with at least a reset button for resetting the cutter head to an intermediate position and a tube size input module for selecting a tube size. Before cutting, the controller controls the cutter head 21 to return to the neutral position by pressing the reset button. Then, after the pipe diameter of the pipe 3 to be cut is selected through the pipe dimension input module, the controller controls the speeds of the first stepping motor 5 and the second stepping motor 23 according to the pipe diameter of the pipe 3 to be cut, and further controls the rotation speed of the pipe 3 and the speed of the left and right feeding movement of the cutting tool bit 21 respectively so as to cut out the required intersecting line.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011279197.9A CN112388131B (en) | 2020-11-16 | 2020-11-16 | Intersecting line auxiliary cutting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279197.9A CN112388131B (en) | 2020-11-16 | 2020-11-16 | Intersecting line auxiliary cutting device |
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| CN112388131A CN112388131A (en) | 2021-02-23 |
| CN112388131B true CN112388131B (en) | 2024-11-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664293A (en) * | 2021-08-26 | 2021-11-19 | 中国核电工程有限公司 | Cutting device and sealing system |
| CN113787216B (en) * | 2021-09-18 | 2023-08-18 | 江苏理工学院 | Industrial robot-based glass fiber reinforced plastic pipeline intersecting line milling platform |
| CN113787221A (en) * | 2021-09-18 | 2021-12-14 | 江苏理工学院 | Full-automatic FRP pipe says intersecting line milling unit based on robot |
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| CN101653872A (en) * | 2009-09-24 | 2010-02-24 | 南京奥特电气有限公司 | Rolling disc type two-axis numerical control pipeline cutting machine |
| CN206028980U (en) * | 2016-08-25 | 2017-03-22 | 广州市粤雕自动化设备有限公司 | Novel plasma cutting machine |
| CN210100462U (en) * | 2019-04-16 | 2020-02-21 | 苏州市倍思创电子有限公司 | Solid rubber mold fixing clamp |
| CN213794761U (en) * | 2020-11-16 | 2021-07-27 | 三明学院 | Auxiliary cutting device for intersecting line |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201906908U (en) * | 2010-11-16 | 2011-07-27 | 无锡华光工业锅炉有限公司 | Saddle-shaped pipe end cutting device |
| US9075031B2 (en) * | 2011-10-11 | 2015-07-07 | Ortho-Clinical Diagnostics, Inc. | Apparatus for gripping and holding diagnostic cassettes |
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2020
- 2020-11-16 CN CN202011279197.9A patent/CN112388131B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653872A (en) * | 2009-09-24 | 2010-02-24 | 南京奥特电气有限公司 | Rolling disc type two-axis numerical control pipeline cutting machine |
| CN206028980U (en) * | 2016-08-25 | 2017-03-22 | 广州市粤雕自动化设备有限公司 | Novel plasma cutting machine |
| CN210100462U (en) * | 2019-04-16 | 2020-02-21 | 苏州市倍思创电子有限公司 | Solid rubber mold fixing clamp |
| CN213794761U (en) * | 2020-11-16 | 2021-07-27 | 三明学院 | Auxiliary cutting device for intersecting line |
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