CN211248717U - Steel plate circle cutting device - Google Patents
Steel plate circle cutting device Download PDFInfo
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- CN211248717U CN211248717U CN201921929020.1U CN201921929020U CN211248717U CN 211248717 U CN211248717 U CN 211248717U CN 201921929020 U CN201921929020 U CN 201921929020U CN 211248717 U CN211248717 U CN 211248717U
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Abstract
The utility model discloses a steel plate circle cutting device, including cutting torch, base and cutting torch dead lever, the base up end is opened flutedly, be equipped with the rotation axis bearing in the recess, install rather than coaxial rotation axis in the rotation axis bearing, the rotation axis upper segment extends to the base top along its axial, and its extension section lateral wall has seted up first through-hole along its radial, the cutting torch dead lever body of rod runs through first through-hole and extends along its axial outwards, the body of rod terminal surface is connected with cylinder cutting torch defining head lateral wall, cutting torch defining head axis is perpendicular with the body of rod axis and its both ends opening, the cutting torch nozzle embolias its drum along cutting torch defining head axial downwards; and a rotating assembly for controlling the rotation of the rotating shaft is also arranged in the base. Compared with the prior art, the utility model discloses a steel sheet circle cutting device utilizes the fixed burning torch of base and cutting torch dead lever, retrains the burning torch displacement, makes the burning torch rotate the orbit along the cutting torch dead lever and cuts, improves the edge precision of circle of cutting.
Description
Technical Field
The utility model relates to a cutting tool specifically is steel sheet circle cutting device.
Background
In the daily maintenance manufacturing process, round materials are required to be taken from top to bottom of the steel plate, the circle cutting of the steel plate is an important link, and the quality of the cut steel plate has important influence on the maintenance effect and the maintenance time. The prior art generally directly adopts handheld burning torch cutting, utilizes the high temperature that gas flame produced to heat up the local rapid heating of steel material to the state of melting, makes the steel sheet produce the cutting edge, and operating personnel need strict control direction, angle and the distance of cutting among the cutting process, especially will make cutting torch cutting edge and steel sheet cutting plane keep perpendicular, and the cutting process will be even stable, and is very high to operating personnel's technical requirement.
Because of the limitation of everyone's technique, hand stability and environmental impact, even experienced operating personnel also very easily appear the deviation in the cutting process, make the circle edge that leads to cutting out very coarse, the circular material edge quality of getting down most is relatively poor, can use after needing the further processing of lathe, not only causes wasting of resources such as manpower, material, still makes the process complicated, and work load increases.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art and adopt handheld burning torch cutting to easily appear the deviation, the round edge that the cutting was come out is very coarse not enough, provides a steel sheet circle cutting device, utilizes the fixed burning torch of base and cutting torch dead lever, retrains the burning torch displacement, makes the burning torch rotate the orbit along the cutting torch dead lever and cuts, improves the edge precision of circle of cutting.
The purpose of the utility model is mainly realized through the following technical scheme:
the steel plate circle cutting device comprises a cutting gun, a base and a cutting gun fixing rod, wherein the upper end face of the base is provided with a groove, a rotating shaft bearing is arranged in the groove, a rotating shaft coaxial with the rotating shaft bearing is installed in the rotating shaft bearing, the axis of the rotating shaft is vertical to a cutting surface of the steel plate, the upper section of the rotating shaft upwards extends to the upper part of the base along the axial direction of the rotating shaft, a first through hole is radially formed in the side wall of the upper section extending section of the rotating shaft, a rod body of the cutting gun fixing rod penetrates through the first through hole and outwards extends along the axial direction of the rod body, the end face of the rod body is connected with the side wall of a cylindrical cutting torch limiting head, the axis of the cutting torch limiting head is; and a rotating assembly for controlling the rotation of the rotating shaft is also arranged in the base.
In the process of cutting a round steel plate, a handheld cutting torch is generally adopted to cut the steel plate, the cutting torch is completely fixed by hands, and the cutting torch has small displacement in each constraint direction in the cutting process due to the constraint of human technology and physiological characteristics, so that the edge of the round steel plate obtained by cutting is irregular and rough. This technical scheme sets up the rotation axis bearing in the base to install the rotation axis in the rotation axis bearing, make the rotation axis can be in the rotation axis bearing rotation of freedom, and produce relative rotation with the base, fix the cutting torch dead lever on the rotation axis through first through-hole again, make rotary-cut cutting torch dead lever can rotate along with the rotation of rotation axis, consequently set up the cutting torch in the cutting torch dead lever cutting torch is injectd the head and also can rotate along with the rotation of rotation axis. According to the technical scheme, the steel plate circle cutting device is placed on a steel plate through the base, the rotating shaft is rotated to drive the cutting gun fixing rod and the cutting torch limiting head to move relative to the base, and the cutting gun finally cuts around the base to form a complete steel plate as the cutting gun rotates around the rotating shaft; the steel sheet circle cutting instrument of this technical scheme utilizes base and the fixed burning torch of cutting torch dead lever, and restraint burning torch displacement makes the burning torch rotate the orbit along the cutting torch dead lever and cuts, improves the edge precision of circle of cutting, because the cutting edge of cutting torch keeps perpendicular with the cutting plane always in cutting process, also can improve cutting effect and efficiency greatly.
In the process of cutting the steel plate into a circle, the nozzle of the cutting gun is kept perpendicular to the steel plate, so that the heat of the nozzle can be better contacted with the steel plate in the cutting process, the heat received by the steel plate is uniform, the cut is uniform, and the edge accuracy of the circle is improved; in the technical scheme, the rotating shaft is fixed in the base, and the radial displacement of the rotating shaft bearing is limited by the base and the rotating shaft bearing fixed in the base, so that the axis of the rotating shaft does not deviate, the heat in the circle cutting process is uniform, the cut is uniform, and the edge precision of the circle cutting is improved. This technical scheme has still set up control rotation axis pivoted rotating assembly in the base, and through rotating assembly control rotation axis rotation, compare the manual mark according to on the steel sheet of people and cut, use rotating assembly burning torch slew velocity homogeneous, the turned position is more accurate, makes the heat even in the circle cutting process, and the incision homogeneous improves the edge precision of circle cutting.
It needs to be further explained that, in the technical scheme, the bottom surface of the base is a horizontal plane, the end surface of the bearing of the rotating shaft is also a horizontal plane, and the rotating shaft is vertical to the horizontal plane.
Further, the rotating component comprises a motor, an input shaft and an output shaft, the axes of the input shaft, the output shaft and the rotating shaft are parallel, the bottom ends of the input shaft and the output shaft are respectively arranged on an input shaft bearing and an output shaft bearing, the input shaft bearing and the output shaft bearing are fixed in the base, a conical gear is arranged on the output end of the motor, a planetary gear matched with the conical gear is arranged on the lower section of the input shaft, a plurality of driving wheels with diameters sequentially increased are arranged on the input shaft along the axial direction from top to bottom, an outer gear is arranged on the outer circumferential wall of the output shaft, a plurality of sliding gears matched with the driving wheels one by one sequentially along the output axial direction from top to bottom are arranged on the outer gear, an outer gear is arranged on the outer circumferential wall of the sliding gear, an inner gear is arranged on the inner circumferential wall of the sliding gear, the inner gear of the, the annular boss is connected with a connecting rod vertical to the axis of the output shaft, a limiting boss extending outwards along the radial direction of the output shaft is arranged below each sliding gear on the output shaft, the top end of the output shaft is provided with an output gear, and the bottom end of the rotating shaft is provided with a rotating gear matched with the output gear; in the initial state, the sliding gear positioned at the top of the output shaft is meshed with the driving gear matched with the sliding gear, the other driving gears are not in contact with the sliding gear, a limiting boss is arranged below each sliding gear to limit the sliding gear to move downwards along the axial direction of the output shaft, the connecting rod moves upwards along the axial direction of the output shaft to enable the sliding gear at the top to be disengaged from the driving gear, and the next driving gear below the axial direction of the output shaft is meshed with the next sliding gear.
In the circle cutting process, a cutting gun melts a metal part or a local part at the cut of a workpiece by utilizing the heat of a gun head to form a cut, the quality of a material cut by using the handheld cutting gun is related to the cutting speed, generally speaking, the thinner the workpiece is, the faster the cutting speed is, otherwise, the slower the cutting speed is, if the cutting rotating speed is too high in the cutting process, the metal is easy to cut continuously, the cutting moving speed is too slow, the welding of a cutting seam near the cutting gun for cutting is caused, or the area of the cutting seam which is too wide and is cut into a circle is small, so in the cutting process, an operator needs to adjust the rotating speed of the cutting gun according to the cutting condition. The technical scheme includes that the rotating assembly is arranged, the driving wheels and the sliding gears are sequentially matched one by one, the matching means that the outer diameters of the driving wheels and the sliding gears are matched, one driving wheel is meshed with the matched sliding gear in the process that the sliding gear slides along the axial direction of an output shaft, the other driving wheels are in contact with the sliding gears, and when the driving wheel is disengaged from the sliding gear, the next driving wheel along the moving direction of the connecting rod is meshed with the next sliding gear; in the process, the axes of the input shaft and the output shaft are parallel, the diameters of the driving wheels are sequentially increased from top to bottom along the axial direction of the input shaft, the sliding gears are matched with the driving wheels one by one, the diameters of the sliding gears are sequentially reduced from top to bottom along the axial direction of the input shaft, the input shaft is driven by the motor to rotate, the rotating speed of the output shaft is fixed, the diameters of the driving wheels and the sliding gears which are meshed at each time along the axial direction of the output shaft are different, the rotating speed of the input shaft is also different, the rotating speed of the input shaft can be controlled by controlling the meshed driving wheels and the sliding gears through the connecting rods, operators can select different cutting speeds according to the thicknesses of.
It should be further explained that, in the technical scheme, the output gear is arranged at the top end of the output shaft, and in practical application, the output gear can be arranged between the sliding gears or between the output shaft gear bearing and the lowest sliding gear according to the thickness of the gear and the height of the base; however, no matter the arrangement mode is the mode of the technical scheme or the arrangement mode is the mode, the output gear is fixedly connected with the output shaft and cannot move along the output shaft, and the output gear is not on the moving path of the sliding gear; in the technical scheme, the driving wheels and the sliding gears are matched into one group one by one, if more than two groups are arranged, each group of gears are meshed one by one from top to bottom along with the upward movement of the connecting rod, when one group of gears are meshed, the rest gears are not contacted, and after the connecting rod moves upwards to the lowest group of gears, the connecting rod can move downwards along the axial direction of the output shaft to enable each group of gears to be meshed one by one from bottom to top; in the technical scheme, the sliding gear can be moved by manually controlling the connecting rod, the position of the gear is fixed by manually fixing the connecting rod after the sliding gear is moved, and the connecting rod can also be controlled to move by connecting other devices on the connecting rod; the side wall of the base is provided with a strip-shaped hole with a long shaft parallel to the rotating shaft, the free end of the connecting rod extends out of the base from the inside of the base, and the connecting rod can be stirred outside the base to move up and down along the long shaft direction of the strip-shaped hole.
Furthermore, a fixed rod parallel to the axis of the output shaft is fixed in the base, a sliding groove is formed in the side wall of the fixed rod along the axial direction of the fixed rod, a sliding rod sliding along the axial direction of the sliding groove is arranged in the sliding groove, the side wall of the sliding rod is connected with the end faces of all the connecting rods, sliding rod teeth are arranged in the middle section of the sliding rod along the axial direction of the sliding rod, a second through hole is formed in the side wall of the sliding groove, teeth of the control gear portion penetrate through the second through hole to be meshed with the sliding rod teeth.
The positions of the sliding gears can be moved by manually moving the connecting rods, so that different driving wheels are meshed with the sliding gears, but in the mode, all the connecting rods are required to be operated each time, the positions of the connecting rods are adjusted to enable only one pair of driving wheels to be meshed with the sliding gears, the operation process is complex, and the positions are prone to being inaccurate; according to the technical scheme, the fixed rod and the sliding rod sliding in the sliding groove of the fixed rod are arranged, the sliding position of the sliding rod is controlled by meshing the control gear with the teeth of the sliding rod, all the connecting rods can be moved at one time through the sliding rod, and the displacement of the connecting rods is more accurate along the direction of the sliding groove, so that the displacement position and the direction are more accurate; and in the technical scheme, the control gear is used for controlling the displacement of the slide bar, the slide bar can be fixed at the position after the slide bar is displaced and can be fixed through the rotation direction of the manual stabilizing gear, so that the driving wheel is meshed with the sliding temperature in the cutting process, the cutting speed is stable, the cut is uniform, and the edge precision of the circle is improved.
It should be further noted that, in the technical solution, the control gear is used for controlling the sliding gear to move, the control gear is manually rotated, when a certain group of sliding gears is meshed with the driving wheel, the control gear is fixed and does not rotate any more, the gear can be kept in a fixed state when not being subjected to hand rotating force by increasing the rotating resistance of the control gear, or a plurality of through holes are arranged on the end surface of the control gear along the circumferential direction thereof, a semicircular lug coaxial with the control gear is arranged on the side wall of the fixing rod close to one side of the control gear, and a plurality of through holes are arranged on the semicircular lug along the circumferential direction thereof; according to the technical scheme, the side wall of the base can be provided with a strip-shaped hole with a long shaft parallel to the rotating shaft, the fixed rod is arranged in the strip-shaped hole, one part of the control gear is meshed with the slide rod in the fixed rod, and the other part of the control gear is exposed out of the side wall of the base, so that the control gear can be conveniently rotated from the outside of the side wall of the base.
Furthermore, an annular limiting clamping block is arranged on the lower section of the groove along the inner circumferential wall of the groove, the lower section of the rotating shaft penetrates through the annular limiting clamping block and extends into the groove, the extending section of the lower section of the rotating shaft protrudes outwards along the radial direction of the extending section of the lower section of the rotating shaft to form an annular flange, the annular limiting clamping block is positioned between the annular flange and a rotating shaft bearing, and the annular flange and the annular limiting clamping block are matched to limit the axial displacement of the rotating shaft; the inner diameter of the annular limiting clamping block is smaller than the outer diameter of the rotary shaft bearing.
In the process of cutting a circle of the steel plate, the distance between the nozzle of the cutting gun and the steel plate is kept, so that the heat of the nozzle can be better contacted with the steel plate through cutting, and the axial lines of the nozzle of the cutting gun and the limiting head of the cutting nozzle are the same, namely the axial line of the nozzle of the cutting gun is parallel to the axial line of the rotating shaft, so that the axial distance between the nozzle of the cutting gun and the steel plate can be unchanged without the rotating shaft deviating along the axial line when the steel plate is cut; according to the technical scheme, the lower end of the groove is provided with the annular limiting clamping block, the lower section extension section of the bearing is provided with the annular flange matched with the annular limiting clamping block, the annular flange and the annular limiting clamping block are matched to limit the axial displacement of the rotating shaft, so that the rotating shaft is axially fixed, and the axial distance between a gun nozzle and a steel plate is unchanged in the cutting process; according to the technical scheme, the inner diameter of the annular limiting clamping block is smaller than the outer diameter of the bearing, so that the downward displacement of the bearing along the axis can be limited, the axial displacement of the rotating shaft is further limited, the rotating shaft is axially fixed, and the axial distance between a gun nozzle and a steel plate is unchanged in the cutting process; keep the axial distance of rifle nozzle and steel sheet unchangeable among the cutting process, enable the better and steel sheet contact of nozzle heat, the heat that the steel sheet received is even, and the incision homogeneous improves the edge precision of circle of contact.
Preferably, the outer diameter of the upper section extension section of the rotating shaft in the technical scheme is larger than the inner diameter of the bearing, so that the axial displacement of the rotating shaft is further limited, the rotating shaft is axially fixed, and the axial distance between a gun nozzle and a steel plate is unchanged in the cutting process.
Furthermore, a threaded hole is formed in the upper end face of the rotating shaft along the axial direction of the rotating shaft, the bottom of the threaded hole is communicated with the side wall of the first through hole, and a bolt matched with the threaded hole is arranged in the threaded hole.
This technical scheme utilizes the decurrent rotatory extrusion cutting torch dead lever lateral wall of bolt through setting up the screw hole, makes the cutting torch dead lever more stable.
Further, the base is cylindrical and coaxial with the rotating shaft.
This technical scheme sets up the shape of base for following rotation axis symmetry, because the rotation axis rotates along its axis during the use, can follow a week applied force to the base, consequently sets up the shape of base for following rotation axis symmetry, and the impartial that the base received when enabling rotation axis rotation a week makes the cutting process balanced, and the incision is homogeneous, improves the edge precision of tangent circle. Preferably, the threaded bore is coaxial with the axis of rotation.
Furthermore, a strong magnet is arranged on the bottom surface inside the base, and the bottom surface of the strong magnet is flush with the bottom surface of the base.
Because in the cutting process, the base needs to keep motionless, and the rotation axis of being connected with the base and cutting torch dead lever continue to rotate, probably can make the base produce the skew, in order to improve the stability of base, this technical scheme sets up powerful magnet in the base, utilizes the appeal of magnet to enable the stable fixing of base on the steel sheet, makes the cutting process in the device more stable, and the incision homogeneous improves the edge precision of cutting the circle. The powerful magnet is generally selected from an electromagnet, and is powered on when in use and powered off when not in use, so that the base is easy to remove from the steel plate.
Preferably, the base is arranged on the centering seat plate in the technical scheme, the centering seat plate is used for drawing a circle on a steel plate to be cut by compasses before cutting, a cross mark is drawn at the center of the circle, four notches in the centering seat plate are aligned to the cross mark, the central point of the surface of the centering seat plate is on the axis of the base, and the surface area of the centering seat plate is larger than the area of the bottom surface of the base.
Furthermore, the base still includes centering bedplate and cone, and centering bedplate is fixed on the base bottom surface, and the cone major diameter end runs through centering bedplate and is connected with the base bottom surface, and the cone is coaxial with the base.
This technical scheme is through setting up the base conical, drills out the through-hole that supplies conical base to pass through on the steel sheet during use, inserts conical base, makes the stable fixing of base on the steel sheet, recycles centering bedplate bottom surface and steel sheet laminating, makes the cutting in-process device more stable, and the incision is homogeneous, improves the edge precision of cutting the circle. The central point of the surface of the centering seat plate is on the axis of the base, and the surface area of the centering seat plate is larger than the area of the bottom surface of the base.
To sum up, compared with the prior art, the utility model has the following beneficial effects:
1. the base of the steel plate circle cutting device is placed on a steel plate, the rotating shaft is rotated to drive the cutting gun fixing rod and the cutting torch limiting head to move relative to the base, and the cutting gun finally forms a complete steel plate by cutting around the base as the cutting gun rotates by taking the rotating shaft as a center; the steel plate circle cutting tool of the technical scheme utilizes the base and the cutting gun fixing rod to fix the cutting gun, restrains the displacement of the cutting gun, enables the cutting gun to cut along the rotating track of the cutting gun fixing rod, and improves the edge precision of circle cutting.
2. The utility model fixes the rotating shaft in the base, utilizes the base and the rotating shaft bearing fixed in the base to limit the radial displacement of the rotating shaft bearing, utilizes the matching of the annular flange and the annular limiting fixture block, and the inner diameter of the annular limiting fixture block is smaller than the outer diameter of the bearing to limit the axial displacement of the rotating shaft, so that the rotating shaft is axially fixed, and the axial distance and the radial displacement between the gun nozzle and the steel plate are unchanged in the cutting process; keep the distance of rifle nozzle and steel sheet unchangeable among the cutting process, enable better and the steel sheet contact of nozzle heat, the heat that the steel sheet received is even, and the incision homogeneous improves the edge precision of circle of cutting.
3. The utility model discloses still set up control rotation axis pivoted rotating assembly in the base, through rotating assembly control rotation axis rotation, compare the manual mark according to on the steel sheet of people and cut, use rotating assembly burning torch slew velocity homogeneous, the turned position is more accurate, makes the heat even in the circle of contact process, and the incision homogeneous improves the edge precision of circle of contact.
4. The utility model discloses utilize action wheel and the sliding gear of in proper order one-to-one matching, the slew velocity of control input shaft, operating personnel can select different cutting speed according to the thickness of cutting steel plate, improves the edge precision of circle of cutting.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a steel plate circle cutting device in use;
FIG. 2 is a schematic view of the steel plate circle cutting device in use;
FIG. 3 is a cross-sectional view of a steel plate rounding device;
FIG. 4 is a schematic view of the structure of the rotating assembly;
FIG. 5 is a schematic view showing the connection relationship between the connecting rod, the slide rod teeth and the control gear;
wherein, 1-base, 101-concave groove, 102-annular limit fixture block, 103-powerful magnet, 104-centering seat plate, 2-cutting gun fixed rod, 201-cutting nozzle limiting head, 3-rotating shaft bearing, 4-rotating shaft, 401-annular flange, 402-threaded hole, 403-bolt, 404-rotating gear, 501-motor, 5011-conical gear, 502-input shaft, 5021-planetary gear, 5022-driving wheel, 5023-input shaft bearing, 503-output shaft, 5031-sliding gear, 5032-annular boss, 5033-connecting rod, 5034-fixed rod, 5035-control gear, 5036-output shaft bearing, 5037-sliding rod, 5038-sliding rod tooth, 5039-limit boss, 504-output gear, 6-cutting gun.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1:
as shown in fig. 1 and 3, the steel plate circle cutting device comprises a cutting gun 6, a base 1 and a cutting gun fixing rod 2, wherein a groove 101 is formed in the upper end surface of the base 1, a rotating shaft bearing 3 is arranged in the groove 101, a rotating shaft 4 coaxial with the rotating shaft bearing 3 is installed in the rotating shaft bearing 3, the axis of the rotating shaft 4 is perpendicular to a steel plate cutting surface, the upper section of the rotating shaft 4 extends upwards to the upper side of the base 1 along the axial direction of the rotating shaft 4, a first through hole is formed in the side wall of the extending section of the upper section of the rotating shaft 4 along the radial direction of the rotating shaft, a rod body of the cutting gun fixing rod 2 penetrates through the first through hole and extends outwards along the axial direction of the rod body, the end surface of the rod body is connected with a cylindrical cutting nozzle limiting head 201, the axis of the cutting nozzle; and a rotating assembly for controlling the rotation of the rotating shaft 4 is also arranged in the base 1. In the embodiment, the rotating shaft bearing is arranged in the base, the rotating shaft is arranged in the rotating shaft bearing, so that the rotating shaft can freely rotate in the rotating shaft bearing and can rotate relative to the base, the cutting gun fixing rod is fixed on the rotating shaft through the first through hole, and the rotary cutting gun fixing rod can rotate along with the rotation of the rotating shaft, so that a cutting gun arranged in a cutting nozzle limiting head of the cutting gun fixing rod can also rotate along with the rotation of the rotating shaft, a rotating assembly for controlling the rotation of the rotating shaft is further arranged in the base, the rotation of the rotating shaft is controlled through the rotating assembly, compared with the manual cutting according to marks on a steel plate, the rotating assembly is used for uniformly rotating the cutting gun, the rotating position is more accurate, the heat in the circle cutting process is uniform, the notch is uniform, the edge precision of the circle is improved, and the cutting nozzle of the cutting gun is always vertical to a cutting surface in, the cutting effect and efficiency can be greatly improved.
Preferably, an annular limiting clamping block 102 is arranged at the lower section of the groove 101 along the inner circumferential wall thereof, the lower section of the rotating shaft 4 penetrates through the annular limiting clamping block 102 and extends into the groove 101, an annular flange 401 is formed at the lower section extending section of the rotating shaft 4 and protrudes outwards along the radial direction thereof, the annular limiting clamping block 102 is positioned between the annular flange 401 and the rotating shaft bearing 3, the annular flange 401 and the annular limiting clamping block 102 are matched to limit the axial displacement of the rotating shaft 4, the annular limiting clamping block is arranged at the lower end of the groove, and an annular flange matched with the annular limiting clamping block is arranged at the lower section extending section of the bearing, so that the axial displacement of the rotating shaft is limited by the matching of the annular flange and the annular limiting clamping block, the rotating shaft. The inner diameter of the annular limiting fixture block 102 is smaller than the outer diameter of the rotating shaft bearing 3, the inner diameter of the annular limiting fixture block is smaller than the outer diameter of the bearing, the downward displacement of the bearing along the axis can be limited, the axial displacement of the rotating shaft is further limited, the rotating shaft is axially fixed, and the axial distance between a gun nozzle and a steel plate is unchanged in the cutting process; keep the axial distance of rifle nozzle and steel sheet unchangeable among the cutting process, enable the better and steel sheet contact of nozzle heat, the heat that the steel sheet received is even, and the incision homogeneous improves the edge precision of circle of contact.
The upper end surface of the rotating shaft 4 is provided with a threaded hole 402 along the axial direction, the bottom of the threaded hole 402 is communicated with the side wall of the first through hole, a bolt 403 matched with the threaded hole 402 is arranged in the threaded hole 402, and preferably, the threaded hole is coaxial with the rotating shaft; through setting up the screw hole, utilize the decurrent rotatory extrusion cutting torch dead lever lateral wall of bolt, make the cutting torch dead lever more stable.
Preferably, the base 1 is cylindrical and coaxial with the rotation axis 4. Set up the base for following the cylindric of rotation axis symmetry, because the rotation axis rotates along its axis during the use, can follow a week applied force to the base, consequently set up the base for following the shape of rotation axis symmetry, the impartial that the base received when enabling the rotation axis rotation a week makes the cutting process balanced, and the incision is homogeneous, improves the edge precision of tangent circle.
Preferably, the outer diameter of the upper section extension section of the rotating shaft in the technical scheme is larger than the inner diameter of the rotating bearing, so that the axial displacement of the rotating shaft is further limited, the rotating shaft is axially fixed, and the axial distance between a gun nozzle and a steel plate is unchanged in the cutting process.
In this embodiment, the bottom surface of the base is a horizontal surface, the end surface of the bearing of the rotating shaft is also a horizontal surface, and the rotating shaft is perpendicular to the horizontal surface.
In the embodiment, the base of the steel plate circle cutting device is placed on a steel plate, the rotating shaft 4 is rotated to drive the cutting gun fixing rod 2 and the cutting torch limiting head 201 to move relative to the base, and the cutting gun 6 finally cuts around the base 1 to form a complete steel plate as the cutting gun 6 rotates around the rotating shaft 4 as a center; the cutting torch 6 is fixed by the base 1 and the cutting torch fixing rod 2, and the displacement of the cutting torch 6 is restrained, so that the cutting torch 6 cuts along the rotating track of the cutting torch fixing rod 2, and the edge precision of circle cutting is improved; the embodiment further fixes the rotating shaft 4 in the base 1, and then the annular flange 401 and the annular limiting fixture block 102 are arranged, wherein the inner diameter of the annular limiting fixture block 102 is smaller than the outer diameter of the rotating bearing 3, so that the radial and axial displacement of the rotating shaft 4 is limited, the device is more stable in the cutting process, the cut is uniform, and the edge precision of the circle is improved.
Example 2:
this example differs from example 1 in that: as shown in fig. 4 and 5, the rotating assembly includes a motor 501, an input shaft 502 and an output shaft 503, the axes of the input shaft 502, the output shaft 503 and a rotating shaft 4 are parallel, the bottom ends of the input shaft 502 and the output shaft 503 are respectively arranged on an input shaft bearing 5023 and an output shaft bearing 5036, the input shaft bearing 5023 and the output shaft bearing 5036 are fixed in a base 1, a bevel gear 5011 is arranged on the output end of the motor 501, a planetary gear 5021 matched with the bevel gear 5011 is arranged on the lower section of the input shaft 502, a plurality of driving wheels 5022 with diameters increasing in sequence are arranged on the input shaft 502 along the axial direction from top to bottom, an external gear is arranged on the outer circumferential wall of the output shaft 503, a plurality of sliding gears 5031 matched with the driving wheels 5022 in sequence from top to bottom are arranged on the external gear along the output shaft 503, an external gear is arranged on the outer circumferential wall of the sliding gear 5031 and an internal gear is arranged in the circumferential wall, an annular boss 5032 extending outwards along the axial direction of the sliding gear 5031 is arranged on one side end face of the sliding gear 5031, a connecting rod 5033 perpendicular to the axis of the output shaft is connected to the annular boss 5032, a limiting boss 5039 extending outwards along the radial direction of the output shaft 503 is arranged below each sliding gear 5031 on the output shaft 503, an output gear 504 is arranged at the top end of the output shaft 503, and a rotary gear 404 matched with the output gear 504 is arranged at the bottom end of the rotary shaft 4; in an initial state, the uppermost sliding gear 5031 of the output shaft 503 is engaged with the driving gear 5022 matched with the uppermost sliding gear 5031, the other driving gears 5022 are not in contact with the sliding gears 5031, a limiting boss 5039 is arranged below each sliding gear 5031 to limit the axial downward movement of the sliding gear 5031 along the output shaft 503, the connecting rod 5033 is moved upward along the axial direction of the output shaft 503, so that the uppermost sliding gear 5031 is disengaged from the driving gear 5022, and the next driving gear 5022 below the axial direction of the output shaft 503 is engaged with the next sliding gear 5031. In the embodiment, the rotating assembly is arranged, and by using the driving wheels and the sliding gears which are sequentially matched one by one, one driving wheel is meshed with one sliding gear while the sliding gears axially slide along the output shaft, and the other driving wheels and the sliding gears are not meshed; in the process, the axes of the input shaft and the output shaft are parallel, the diameters of the driving wheels are sequentially increased from top to bottom along the axial direction of the input shaft, the sliding gears are matched with the driving wheels one by one, the diameters of the sliding gears are sequentially reduced from top to bottom along the axial direction of the input shaft, the input shaft is driven by the motor to rotate, the rotating speed of the output shaft is fixed, the diameters of the driving wheels and the sliding gears which are meshed at each time along the axial direction of the output shaft are different, the rotating speed of the input shaft is also different, the rotating speed of the input shaft can be controlled by controlling the meshed driving wheels and the sliding gears through the connecting rods, operators can select different cutting speeds according to the thicknesses of.
Preferably, a fixing rod 5034 parallel to the axis of the output shaft 503 is fixed in the base 1, a sliding slot is formed in the side wall of the fixing rod 5034 along the axial direction thereof, a sliding rod 5037 sliding along the axial direction of the sliding slot is arranged in the sliding slot, the side wall of the sliding rod 5037 is connected with the end faces of all the connecting rods 5033, a sliding rod tooth 5038 is arranged at the middle section of the sliding rod 5037 along the axial direction thereof, a second through hole is formed in the side wall of the sliding slot, part of teeth of the control gear 5035 penetrates through the second through hole to be meshed with the sliding rod tooth 5038, and the sliding rod 5037. The sliding position of the sliding rod is controlled by arranging the fixed rod and the sliding rod sliding in the sliding groove of the fixed rod and utilizing the meshing of the control gear and the teeth of the sliding rod, all connecting rods can be moved at one time through the sliding rod, and the displacement of the connecting rods is more accurate along the direction of the sliding groove; and in the technical scheme, the control gear is used for controlling the displacement of the slide bar, the slide bar can be fixed at the position after the slide bar is displaced by fixing the rotation direction of the manual stabilizing gear, so that the driving wheel and the sliding gear are meshed in the cutting process, the cutting speed is stable, the cut is uniform, and the edge precision of the circle of contact is improved.
Preferably, in this embodiment, the gear is maintained in a fixed state when the gear is not subjected to a hand rotation force by increasing the rotation resistance of the control gear, or a plurality of through holes are formed in the end face of the control gear along the circumferential direction thereof, a semicircular projection coaxial with the control gear is formed in the side wall of the fixed rod on the side close to the control gear, and a plurality of through holes are formed in the semicircular projection along the circumferential direction thereof, when the control gear rotates to mesh a certain group of the sliding gears with the driving wheel, one through hole in the semicircular projection is coaxial with one through hole in the control gear, and a fixing rod is inserted into and simultaneously penetrates through the two through holes, so that the control gear is fixed; preferably, the side wall of the base is further provided with a bar-shaped hole with a long axis parallel to the rotating shaft, the fixing rod is arranged in the bar-shaped hole, one part of the control gear is engaged with the sliding rod in the fixing rod, and the other part of the control gear is exposed out of the side wall of the base, so that the control gear can be conveniently rotated from the outside of the side wall of the base.
In the embodiment, the sliding rod controls the sliding gear to be meshed with the driving wheel in a matching manner, the rotating speed of the output shaft is controlled, the rotating speed of the rotating shaft is controlled, an operator can select different cutting speeds according to the thickness of the cut steel plate, and the edge precision of the circle is improved.
Example 3:
this example differs from example 2 in that: a strong magnet 103 is arranged on the bottom surface inside the base 1, and the bottom surface of the strong magnet 103 is flush with the bottom surface of the base 1; preferably, the base is disposed on the centering saddle 104. Set up powerful magnet in the base, utilize the appeal ability of magnet to make the base stable fix on the steel sheet, make the cutting process in the device more stable, the incision is even, improves the edge precision of circle of contact.
The working process of the steel plate circle cutting device provided by the embodiment is as follows:
1. drawing a circle on a steel plate to be cut by using compasses, drawing a cross mark line at the circle center, and aligning four notches on the centering seat plate 104 of the steel plate circle cutting device with the cross mark line; 2. igniting a cutting gun 6 prepared in advance, sleeving the cutting gun 6 into the cutting nozzle limiting head 201, and adjusting flame; 3. the control gear is shifted to enable the sliding rod 5037 to drive the connecting rod 5033 to displace, and the sliding gear 5031 on the output shaft 503 slides along the axial direction to be meshed with a driving wheel 5022 matched with the input shaft 502; 4. the motor 501 is turned on, and the bevel gear 5011 on the motor 501 drives the planetary gear 5021 to rotate, so that the input shaft 502 rotates; the driving wheel 5022 rotates to drive the sliding gear 5031 to rotate, so that the output shaft 503 rotates; the output gear on the output shaft 503 rotates to make the rotary gear rotate, the rotary gear drives the rotating shaft 4 to rotate, so that the cutting gun fixing rod 2 drives the cutting gun 6 to rotate around the rotating shaft 4, and the nozzle of the cutting gun 6 performs circular motion on a steel plate to cut a circle.
Example 4:
this example differs from example 2 in that: as shown in FIG. 2, the base 1 further comprises a centering seat plate 104 and a cone, the centering seat plate 104 is fixed on the bottom surface of the base 1, the large diameter end of the cone penetrates through the centering seat plate 104 to be connected with the bottom surface of the base 1, and the cone is coaxial with the base 1. Through setting up the base conically, drill out the through-hole that supplies conical base to pass through on the steel sheet during use, insert conical base, reuse centering bedplate to make the stable fixing of base on the steel sheet, make the cutting in-process device more stable, the incision is even, improves the edge precision of cutting the circle.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The steel plate circle cutting device comprises a cutting gun (6) and is characterized by also comprising a base (1) and a cutting gun fixing rod (2), the upper end surface of the base (1) is provided with a groove (101), a rotating shaft bearing (3) is arranged in the groove (101), a rotating shaft (4) coaxial with the rotating shaft bearing (3) is arranged in the rotating shaft bearing (3), the axis of the rotating shaft (4) is vertical to a cutting surface of a steel plate, the upper section of the rotating shaft (4) upwards extends to the upper part of the base (1) along the axial direction, a first through hole is formed in the side wall of the extending section of the upper section of the rotating shaft (4) along the radial direction of the rotating shaft, the rod body of the cutting gun fixing rod (2) penetrates through the first through hole and extends outwards along the axial direction of the first through hole, the end face of the rod body is connected with the side wall of a cylindrical cutting torch limiting head (201), the axis of the cutting torch limiting head (201) is perpendicular to the axis of the rod body of the cutting gun fixing rod (2), the two ends of the cutting torch limiting head are opened, and a nozzle of a cutting gun (6) is axially fixed in; and a rotating assembly for controlling the rotation of the rotating shaft (4) is also arranged in the base (1).
2. The steel plate circle cutting device according to claim 1, wherein the rotating assembly comprises a motor (501), an input shaft (502) and an output shaft (503), the axes of the input shaft (502), the output shaft (503) and the rotating shaft (4) are parallel, the bottom ends of the input shaft (502) and the output shaft (503) are respectively arranged on an input shaft bearing (5023) and an output shaft bearing (5036), the input shaft bearing (5023) and the output shaft bearing (5036) are fixed in the base (1), a bevel gear (5011) is arranged on the output end of the motor (501), a planetary gear (5021) matched with the bevel gear (5011) is arranged on the lower section of the input shaft (502), a plurality of driving wheels (5022) with diameters increasing in sequence are arranged on the input shaft (502) along the axial direction thereof to the lower direction, an outer gear is arranged on the outer circumferential wall of the output shaft (503), a plurality of sliding gears (5031) matched with the driving wheels (5022) in sequence from top to bottom are arranged on the outer gear along the, the outer circumferential wall of the sliding gear (5031) is provided with an outer gear, the inner circumferential wall of the sliding gear (5031) is provided with an inner gear, the inner gear of the sliding gear (5031) is matched with the outer gear of the output shaft (503) to enable the sliding gear (5031) to axially slide along the output shaft (503), one side end face of the sliding gear (5031) is provided with an annular boss (5032) which axially extends outwards, the annular boss (5032) is connected with a connecting rod (5033) which is perpendicular to the axis of the output shaft, a limiting boss (5039) which radially extends outwards along the output shaft (503) is arranged below each sliding gear (5031) on the output shaft (503), the top end of the output shaft (503) is provided with an output gear (504), and the bottom end of the rotating shaft (4) is provided with a rotating gear; in an initial state, the uppermost sliding gear (5031) of the output shaft (503) is meshed with the driving gear (5022) matched with the uppermost sliding gear, the other driving gears (5022) are not contacted with the sliding gears (5031), a limiting boss (5039) is arranged below each sliding gear (5031) to limit the sliding gears to move downwards along the axial direction of the output shaft (503), the connecting rod (5033) is moved upwards along the axial direction of the output shaft (503), the uppermost sliding gear (5031) is disengaged from the driving gear (5022), and the next driving gear (5022) below the axial direction of the output shaft (503) is meshed with the next sliding gear (5031).
3. The steel plate rounding device according to claim 2, wherein a fixing rod (5034) parallel to the axis of the output shaft (503) is fixed in the base (1), a sliding slot is formed in the side wall of the fixing rod (5034) along the axial direction thereof, a sliding rod (5037) sliding along the axial direction of the sliding slot is arranged in the sliding slot, the side wall of the sliding rod (5037) is connected with the end faces of all the connecting rods (5033), sliding rod teeth (5038) are arranged in the middle section of the sliding rod (5037) along the axial direction thereof, a second through hole is formed in the side wall of the sliding slot, part of teeth of the control gear (5035) penetrate through the second through hole to be meshed with the sliding rod teeth (5038), and the sliding rod (5037) slides along the axial direction of the.
4. The steel plate circle cutting device according to claim 1, wherein an annular limiting fixture block (102) is arranged at the lower section of the groove (101) along the inner circumferential wall thereof, the lower section of the rotating shaft (4) penetrates through the annular limiting fixture block (102) and extends into the groove (101), the lower section extending section of the rotating shaft (4) protrudes outwards along the radial direction thereof to form an annular flange (401), the annular limiting fixture block (102) is located between the annular flange (401) and the rotating shaft bearing (3), and the annular flange (401) and the annular limiting fixture block (102) are matched to limit the axial displacement of the rotating shaft (4); the inner diameter of the annular limiting fixture block (102) is smaller than the outer diameter of the rotating shaft bearing (3).
5. The steel plate rounding device according to claim 1, wherein the upper end surface of the rotating shaft (4) is provided with a threaded hole (402) along the axial direction thereof, the bottom of the threaded hole (402) is communicated with the side wall of the first through hole, and a bolt (403) matched with the threaded hole (402) is arranged in the threaded hole (402).
6. The steel plate rounding device according to claim 1, characterized in that the base (1) is cylindrical and coaxial with the axis of rotation (4).
7. The steel plate rounding device according to claim 1, characterized in that the base (1) is provided with a strong magnet (103) inside, and the bottom surface of the strong magnet (103) is flush with the bottom surface of the base (1).
8. The steel plate circle cutting device according to claim 1, wherein the base (1) further comprises a centering seat plate (104) and a cone, the centering seat plate (104) is fixed on the bottom surface of the base (1), the large diameter end of the cone penetrates through the centering seat plate (104) to be connected with the bottom surface of the base (1), and the cone is coaxial with the base (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929020.1U CN211248717U (en) | 2019-11-08 | 2019-11-08 | Steel plate circle cutting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929020.1U CN211248717U (en) | 2019-11-08 | 2019-11-08 | Steel plate circle cutting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548374A (en) * | 2020-11-25 | 2021-03-26 | 中船澄西船舶修造有限公司 | Hatch board material feed inlet trompil frock |
| CN114749807A (en) * | 2022-05-17 | 2022-07-15 | 华能淮阴第二发电有限公司 | Welding circle cutting device |
-
2019
- 2019-11-08 CN CN201921929020.1U patent/CN211248717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548374A (en) * | 2020-11-25 | 2021-03-26 | 中船澄西船舶修造有限公司 | Hatch board material feed inlet trompil frock |
| CN114749807A (en) * | 2022-05-17 | 2022-07-15 | 华能淮阴第二发电有限公司 | Welding circle cutting device |
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