CN110405329B - Multi-angle rotary plasma cutting device and use method thereof - Google Patents
Multi-angle rotary plasma cutting device and use method thereof Download PDFInfo
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- CN110405329B CN110405329B CN201910837369.0A CN201910837369A CN110405329B CN 110405329 B CN110405329 B CN 110405329B CN 201910837369 A CN201910837369 A CN 201910837369A CN 110405329 B CN110405329 B CN 110405329B
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
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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 relates to a multi-angle rotary plasma cutting device and a using method thereof, wherein the multi-angle rotary plasma cutting device comprises a bottom plate, a poking plate, a circular dial, a cutting mechanism and a pipe clamp, the circular dial is arranged on the bottom plate, the pipe clamp is arranged on one side part of the bottom plate, the cutting mechanism is arranged at the outer end of the poking plate, a bolt sequentially penetrates through the inner end of the poking plate, the circle center of the circular dial and the bottom plate and is locked by a nut, the cutting mechanism comprises a stand column vertically arranged at the outer end of the poking plate, the stand column Fang Hengzhi is provided with a transmission shaft parallel to the poking plate, a linear guide rail fixing sliding block is sleeved on the transmission shaft, the linear guide rail fixing sliding block is fixedly arranged at the upper end of the stand column, a cutter hand wheel is arranged at the outer end of the transmission shaft, a base is arranged at the inner end of the transmission shaft, a positive and negative screw rod A perpendicular to the transmission shaft is symmetrically arranged on the base, a fixing seat A provided with a laser lamp cap and a fixing seat B provided with a plasma spray head in a threaded fit with the positive and negative screw rod A.
Description
Technical Field
The invention relates to a multi-angle rotary plasma cutting device and a use method thereof.
Background
The plasma cutting is a processing method which utilizes the heat of high-temperature plasma arc to make the metal at the notch of the workpiece be melted (and evaporated) locally, and the momentum of high-speed plasma is used for removing the molten metal to form the notch, and has the advantages of high cutting speed, smooth cutting surface, small thermal deformation, less heat affected zone and the like. In recent years, plasma cutting is widely applied to various industries such as automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general-purpose machinery, engineering machinery, steel structures, ships and the like.
The conventional pipe cutting method comprises manual cutting, semi-automatic cutting by a cutting machine and cutting by a flame intersecting line cutting machine. The manual cutting quality is poor, the size error is large, the material waste is large, the subsequent processing workload is large, the labor condition is bad, and the production efficiency is low. The semi-automatic cutting machine reduces the labor intensity of workers, but has simple functions and is only suitable for cutting parts with more regular shapes. The flame intersecting line cutting machine has the advantages of large cutting deformation, low cutting precision, lower cutting speed, long cutting preheating time and long perforation time, and is difficult to adapt to the requirement of full-automatic operation.
Disclosure of Invention
The invention provides a multi-angle rotary plasma cutting device and a using method thereof.
The invention solves the technical problem by adopting a scheme that the multi-angle rotary plasma cutting device comprises a bottom plate, a poking plate, a circular dial, a cutting mechanism and a pipe clamp, wherein the circular dial is arranged on the bottom plate, the pipe clamp is arranged on one side part of the bottom plate, the cutting mechanism is arranged at the outer end of the poking plate, and a bolt sequentially penetrates through the inner end of the poking plate, the circle center of the circular dial and the bottom plate and is locked by a nut;
the cutting mechanism comprises a vertical column vertically arranged at the outer end of the poking plate, the vertical column Fang Hengzhi is provided with a transmission shaft parallel to the poking plate, a linear guide rail fixing sliding block is sleeved on the transmission shaft, the linear guide rail fixing sliding block is fixedly arranged at the upper end of the vertical column, a cutter hand wheel is arranged at the outer end of the transmission shaft, a base is arranged at the inner end of the transmission shaft, a positive and negative tooth screw rod A perpendicular to the transmission shaft is arranged on the base, a fixing seat A provided with a laser lamp cap and a fixing seat B provided with a plasma spray head are symmetrically arranged on the positive and negative tooth screw rod A in threaded fit with the positive and negative tooth screw rod A.
Further, the screw threads on two sides of the positive and negative screw rod A are opposite in rotation direction, the rotation directions of two screw holes on the fixed seat A and the fixed seat B, which are matched with the positive and negative screw rod A, are the same, two ends of the positive and negative screw rod A are arranged on the base through the bearing seat A, and the end parts of the positive and negative screw rod A are provided with knobs.
Further, the pipe clamp comprises a sliding rail and clamping arms, two clamping arms are symmetrically arranged, clamping grooves are formed in the inner sides of the clamping arms, a sliding block which is in sliding fit with the sliding rail is arranged at the lower ends of the clamping arms, a positive and negative tooth screw rod B which is parallel to the sliding rail is arranged above the sliding rail, and the clamping arms are arranged on the positive and negative tooth screw rod B and are in threaded fit with the positive and negative tooth screw rod B.
Further, the screw threads on two sides of the positive and negative screw rod B are opposite in rotation direction, the rotation directions of two screw holes matched with the positive and negative screw rod B on the two clamping arms are the same, two ends of the positive and negative screw rod B are arranged on the bottom plate through the bearing seat B, and a clamp hand wheel is arranged at one end of the positive and negative screw rod B.
Further, the clamping groove is a V-shaped groove.
Further, each side face of the clamping groove is a frosted surface.
Further, a groove for placing a circular dial is formed in the upper middle of the bottom plate, the range of the circular dial is 0-360 degrees, and the dividing value is 1 degree.
Further, an indication hole is formed in the middle of the shifting plate, and a pointer is arranged in the indication hole.
The application method of the multi-angle rotary plasma cutting device comprises the following steps:
cutting a drawing with a specified size in advance, attaching the drawing to the surface of a cutting part of a round tube to be cut, placing the round tube to be cut between two clamping arms, rotating a clamp hand wheel to enable the two clamping arms to move in opposite directions, and clamping the round tube to be cut through a clamping groove on the clamping arm;
then, the position of the round tube to be cut is adjusted until the symmetry line of the intersecting line and the rotation center of the cutter are positioned on the same plane, so that the accurate positioning of the cutting center is ensured, and the longitudinal positioning is completed;
before cutting, determining the angle between the rotation center line direction of the cutter and the axial direction of the round tube to be cut in advance, rotating the shifting plate to adjust the corresponding angle, and then tightening the nut to fix the adjustable shifting plate on the bottom plate;
rotating a knob for adjusting the end part of the positive and negative tooth screw rod A to enable the fixed seat A and the fixed seat B to synchronously move to the required scales;
turning on a laser lamp switch, rotating a cutter hand wheel to enable the laser lamp and the rotation center to be on the same horizontal plane, adjusting the axial position of the round tube to enable the topmost end of the intersecting line to coincide with the laser point, and completing axial positioning;
rotating the cutter hand wheel again to enable the bright point of the laser lamp thrown on the surface of the circular tube to move along the intersecting line of the drawing, observing whether errors exist or not, and if so, continuing to adjust until the bright point of the laser lamp is basically coincident with the intersecting line of the drawing;
pushing the cutter hand wheel to enable the plasma spray head to be close to the circular tube, opening a plasma spray head switch, rotating the cutter hand wheel to cut the circular tube by utilizing high-temperature plasma arc, rotating the cutter hand wheel for a circle to finish cutting, and rotating the cutter hand wheel for cutting after the adjustment shifting plate rotates 180 degrees around the circle center of the circular dial if the feeding amount is insufficient.
Compared with the prior art, the invention has the following beneficial effects: simple structure, reasonable in design, operation convenient to use, cutting accuracy is high.
Drawings
The patent of the invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the present apparatus;
fig. 2 is a schematic diagram of the structure of the device.
In the figure: 1-a circular dial; 2-a bottom plate; 3-shifting plate; 4-stand columns; 5-a linear guide fixing slide block; 6-a transmission shaft; 7-a cutter hand wheel; 8-a base; 9-a positive and negative tooth screw rod A; 10-bearing seat A; 11-a fixing seat A; 12-fixing seat B; 13-bearing seat B; 14-a round tube to be cut; 15-clamping arms; 16-positive and negative tooth screw rod B; 17-a clamp hand wheel; 18-sliding rails; 19-slider.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
1-2, the multi-angle rotary plasma cutting device comprises a bottom plate, a poking plate, a circular dial, a cutting mechanism and a pipe clamp, wherein the circular dial is arranged on the bottom plate, the pipe clamp is arranged on one side part of the bottom plate, the cutting mechanism is arranged at the outer end of the poking plate, a bolt sequentially penetrates through the inner end of the poking plate, the circle center of the circular dial and the bottom plate and then is locked by a nut, and when the nut is unscrewed, the poking plate can rotate around the circle center of the circular dial;
the cutting mechanism comprises a stand column vertically arranged at the outer end of the poking plate, the stand column Fang Hengzhi is provided with a transmission shaft parallel to the poking plate, a linear guide rail fixing sliding block is sleeved on the transmission shaft, the linear guide rail fixing sliding block is fixedly arranged at the upper end of the stand column, a cutter hand wheel is arranged at the outer end of the transmission shaft, a base is arranged at the inner end of the transmission shaft, the base is a long straight groove-shaped guide rail, a positive and negative tooth screw rod A perpendicular to the transmission shaft is arranged in a groove of the base, a fixing seat A provided with a laser lamp holder and a fixing seat B provided with a plasma spray head and in threaded fit with the positive and negative tooth screw rod A are symmetrically arranged on the positive and negative tooth screw rod A, the stand column is connected with the poking plate through a screw, the linear guide rail fixing sliding block is connected with the stand column through a screw, the distance from the fixing seat A and the fixing seat B to the midpoint of the axis of the positive and negative tooth screw rod A is the same, and the protruding parts on one side of the fixing seat A and the fixing seat B can slide in the groove of the base along the screw rod direction.
In the embodiment, a strip-shaped scale is arranged on the base, the strip-shaped scale takes the midpoint of the axis of the positive and negative tooth screw rod A as an origin, and the scale is uniformly increased along the positive and negative directions of the axis.
In this embodiment, the threads on both sides of the positive and negative screw rod a are opposite in rotation direction, the rotation directions of two screw holes on the fixing seat a and the fixing seat B, which are matched with the positive and negative screw rod a, are the same, both ends of the positive and negative screw rod a are installed on the base through the bearing seat a, and the end parts of the positive and negative screw rod a are provided with the knob.
In this embodiment, the pipe clamp includes slide rail, arm lock, the arm lock symmetry sets up two, and the arm lock inboard is provided with the clamping groove, and the slider with slide rail sliding fit is installed to the arm lock lower extreme, is provided with the positive and negative tooth lead screw B rather than parallel above the slide rail, and the arm lock is installed at positive and negative tooth lead screw B and with its screw thread fit.
In this embodiment, the screw threads on both sides of the positive and negative screw rod B rotate in opposite directions, the screw directions of two screw holes on the two clamping arms, which are matched with the positive and negative screw rod B, are the same, both ends of the positive and negative screw rod B are installed on the bottom plate through the bearing seat B, a fixture hand wheel is installed at one end of the positive and negative screw rod B, and the positive and negative screw rod B is driven to rotate by rotating the fixture hand wheel, so that the two clamping arms synchronously and rapidly feed and clamp round pipes with any pipe diameters, and the axial positions of the round pipes are not changed under different pipe diameters.
In this embodiment, the positive and negative screw rod a is a positive and negative screw T20 screw rod, the positive and negative screw rod B is a positive and negative screw T10 screw rod, the slide rail is a TRH20A square slide rail, and the slide block is a TRH20A square slide block.
In this embodiment, the clip groove is a V-shaped groove.
In this embodiment, each side surface of the clamping groove is a frosted surface, so that the friction force is increased by increasing the roughness of the contact surface of the round pipe to be cut and the V-shaped clamp.
In the embodiment, the upper middle part of the bottom plate is provided with a groove for placing a circular dial, the range of the circular dial is 0-360 degrees, and the indexing value is 1 degree.
In this embodiment, an indication hole is formed in the middle of the dial plate, a pointer is arranged in the indication hole, and the position of the dial plate can be determined through the scale pointed by the tip of the pointer.
The application method of the multi-angle rotary plasma cutting device comprises the following steps:
cutting a drawing with a specified size in advance, attaching the drawing to the surface of a cutting part of a round tube to be cut, placing the round tube to be cut between two clamping arms, rotating a clamp hand wheel to enable the two clamping arms to move in opposite directions, and clamping the round tube to be cut through a clamping groove on the clamping arm;
then, the position of the round tube to be cut is adjusted until the symmetry line of the intersecting line and the rotation center of the cutter are positioned on the same plane, so that the accurate positioning of the cutting center is ensured, and the longitudinal positioning is completed;
before cutting, determining the angle between the rotation center line direction of the cutter and the axial direction of the round tube to be cut in advance, rotating the shifting plate to adjust the corresponding angle, and then tightening the nut to fix the adjustable shifting plate on the bottom plate;
rotating a knob for adjusting the end part of the positive and negative tooth screw rod A to enable the fixed seat A and the fixed seat B to synchronously move to the required scales;
turning on a laser lamp switch, rotating a cutter hand wheel to enable the laser lamp and the rotation center to be on the same horizontal plane, adjusting the axial position of the round tube to enable the topmost end of the intersecting line to coincide with the laser point, and completing axial positioning;
rotating the cutter hand wheel again to enable the bright point of the laser lamp thrown on the surface of the circular tube to move along the intersecting line of the drawing, observing whether errors exist or not, and if so, continuing to adjust until the bright point of the laser lamp is basically coincident with the intersecting line of the drawing;
pushing the cutter hand wheel to enable the plasma spray head to be close to the circular tube, opening a plasma spray head switch, rotating the cutter hand wheel to cut the circular tube by utilizing high-temperature plasma arc, rotating the cutter hand wheel for a circle to finish cutting, and rotating the cutter hand wheel for cutting after the adjustment shifting plate rotates 180 degrees around the circle center of the circular dial if the feeding amount is insufficient.
The device adopts the double-screw mechanism at two positions, the rotation of the driving part (screw rod) can be converted into the linear motion of the driven part (sliding block and fixed seat) within a certain range, the structure is simple, the manufacturing is easy, and the small torque can generate great axial force (labor saving). The clamp clamps the round tube through the screw mechanism, so that the axial line position of the round tube under different tube diameters can be ensured not to be changed; the rotating radius of the laser lamp cap fixing seat and the plasma spray head fixing seat is adjusted through the screw mechanism, so that the adjusting precision is improved, and the requirements of different working conditions are met.
The laser lamp of the device can greatly reduce errors when the round tube and the cutter are axially positioned, and can preview the processing track in advance, thereby avoiding misoperation. The circular dial of the bottom plate has an accurate calibration angle, and the required intersecting angle can be adjusted when the adjustable dial plate is rotated, so that the cutting precision is improved.
The device adopts a hand wheel to directly drive in a cutter feeding mode, so that the device is stable in driving, labor-saving in rotation and free of noise; the hand wheel has lighter weight and low cost, and can greatly reduce the cost.
The application of the device is as follows: the requirements of automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general machinery, engineering machinery, steel structures, ships and the like can be met by cutting pipe fittings with small surface deformation and high dimensional control accuracy. Like the circular tube structures such as formula car frame, satisfy simultaneously that the pipe fitting outward appearance surface deformation after cutting is little, pipe fitting size variation is little and production process security is high etc. requirement.
While the foregoing is directed to the preferred embodiment, other and further embodiments of the invention will be apparent to those skilled in the art from the following description, wherein the invention is described, by way of illustration and example only, and it is intended that the invention not be limited to the specific embodiments illustrated and described, but that the invention is to be limited to the specific embodiments illustrated and described.
Claims (7)
1. A multi-angle rotary plasma cutting device, characterized in that: the cutting mechanism is used for cutting a pipe intersecting line, and a bolt sequentially penetrates through the inner end of the shifting plate, the circle center of the circular dial and the bottom plate and is locked by a nut;
the cutting mechanism comprises a stand column vertically arranged at the outer end of the poking plate, the stand column Fang Hengzhi is provided with a transmission shaft parallel to the poking plate, a linear guide rail fixing sliding block is sleeved on the transmission shaft, the linear guide rail fixing sliding block is fixedly arranged at the upper end of the stand column, a cutter hand wheel is arranged at the outer end of the transmission shaft, a base is arranged at the inner end of the transmission shaft, a positive and negative tooth screw rod A perpendicular to the transmission shaft is arranged on the base, a fixing seat A provided with a laser lamp cap and a fixing seat B provided with a plasma spray head are symmetrically arranged on the positive and negative tooth screw rod A in threaded fit with the positive and negative tooth screw rod A; the upper middle part of the bottom plate is provided with a groove for placing a circular dial, and the range of the circular dial is 0-360 degrees; an indication hole is formed in the middle of the shifting plate, and a pointer is arranged in the indication hole.
2. The multi-angle rotary plasma cutting apparatus according to claim 1, wherein: the screw threads on two sides of the positive and negative screw rod A are opposite in rotation direction, the rotation directions of two screw holes matched with the positive and negative screw rod A on the fixing seat A and the fixing seat B are the same, two ends of the positive and negative screw rod A are arranged on the base through the bearing seat A, and the end part of the positive and negative screw rod A is provided with a knob.
3. The multi-angle rotary plasma cutting apparatus according to claim 2, wherein: the pipe clamp comprises slide rails and clamp arms, wherein two clamp arms are symmetrically arranged, clamp grooves are formed in the inner sides of the clamp arms, sliding blocks which are in sliding fit with the slide rails are arranged at the lower ends of the clamp arms, positive and negative tooth screw rods B which are parallel to the slide rails are arranged above the slide rails, and the clamp arms are arranged on the positive and negative tooth screw rods B and are in threaded fit with the positive and negative tooth screw rods B.
4. The multi-angle rotary plasma cutting apparatus as set forth in claim 3, wherein: the screw threads on two sides of the positive and negative screw rod B are opposite in rotation direction, the rotation directions of two screw holes matched with the positive and negative screw rod B on the two clamping arms are the same, two ends of the positive and negative screw rod B are arranged on the bottom plate through the bearing seat B, and a clamp hand wheel is arranged at one end of the positive and negative screw rod B.
5. The multi-angle rotary plasma cutting apparatus as set forth in claim 3, wherein: the clamping groove is a V-shaped groove.
6. The multi-angle rotary plasma cutting apparatus as set forth in claim 3, wherein: each side surface of the clamping groove is a frosted surface.
7. A method for using the multi-angle rotary type plasma cutting device according to claim 4, characterized in that:
cutting a drawing with a specified size in advance, attaching the drawing to the surface of a cutting part of a round tube to be cut, placing the round tube to be cut between two clamping arms, rotating a clamp hand wheel to enable the two clamping arms to move in opposite directions, and clamping the round tube to be cut through a clamping groove on the clamping arm;
then, the position of the round tube to be cut is adjusted until the symmetry line of the intersecting line and the rotation center of the cutter are positioned on the same plane, so that the accurate positioning of the cutting center is ensured, and the longitudinal positioning is completed;
before cutting, determining the angle between the rotation center line direction of the cutter and the axial direction of the round tube to be cut in advance, rotating the shifting plate to adjust the corresponding angle, and then tightening the nut to fix the adjustable shifting plate on the bottom plate;
rotating a knob for adjusting the end part of the positive and negative tooth screw rod A to enable the fixed seat A and the fixed seat B to synchronously move to the required scales;
turning on a laser lamp switch, rotating a cutter hand wheel to enable the laser lamp and the rotation center to be on the same horizontal plane, adjusting the axial position of the round tube to enable the topmost end of the intersecting line to coincide with the laser point, and completing axial positioning;
rotating the cutter hand wheel again to enable the bright point of the laser lamp thrown on the surface of the circular tube to move along the intersecting line of the drawing, observing whether errors exist or not, and if so, continuing to adjust until the bright point of the laser lamp is basically coincident with the intersecting line of the drawing;
pushing the cutter hand wheel to enable the plasma spray head to be close to the circular tube, opening a plasma spray head switch, rotating the cutter hand wheel to cut the circular tube by utilizing high-temperature plasma arc, rotating the cutter hand wheel for a circle to finish cutting, and rotating the cutter hand wheel for cutting after the adjustment shifting plate rotates 180 degrees around the circle center of the circular dial if the feeding amount is insufficient.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837369.0A CN110405329B (en) | 2019-09-05 | 2019-09-05 | Multi-angle rotary plasma cutting device and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837369.0A CN110405329B (en) | 2019-09-05 | 2019-09-05 | Multi-angle rotary plasma cutting device and use method thereof |
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| CN110405329A CN110405329A (en) | 2019-11-05 |
| CN110405329B true CN110405329B (en) | 2024-03-01 |
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| CN115229317B (en) * | 2022-09-21 | 2022-12-23 | 贝光科技(苏州)有限公司 | Multi-shaft ion cutting sample loading device |
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| CN110026664A (en) * | 2019-05-23 | 2019-07-19 | 厦门大学嘉庚学院 | A kind of pipeline tracking formula intersection cutting equipment and its working method |
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| Publication number | Publication date |
|---|---|
| CN110405329A (en) | 2019-11-05 |
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