CN115122010A - Welding equipment for producing valve - Google Patents
Welding equipment for producing valve Download PDFInfo
- Publication number
- CN115122010A CN115122010A CN202211059236.3A CN202211059236A CN115122010A CN 115122010 A CN115122010 A CN 115122010A CN 202211059236 A CN202211059236 A CN 202211059236A CN 115122010 A CN115122010 A CN 115122010A
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- ring
- fastening mechanism
- driving wheel
- locking
- along
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
Abstract
The invention relates to the technical field of welding, in particular to welding equipment for producing valves, which comprises a locking ring, a fixing ring, a first fastening mechanism, a second fastening mechanism, an adjusting mechanism and a welding mechanism, wherein the first fastening mechanism and the second fastening mechanism are the same in structure and respectively comprise a control ring, a connecting assembly and a plurality of clamping rods, and the clamping rods are in sliding connection and enclosure end to end and are used for clamping workpieces; the control ring drives the plurality of clamping rods to rotate through the connecting component, so that the plurality of clamping rods are folded or expanded; when the locking ring rotates, the control rings of the second fastening assembly and the first fastening assembly are sequentially driven to rotate through the adjusting mechanism, so that the plurality of clamping rods respectively clamp the two workpieces; after the workpiece is clamped, the adjusting mechanism enables the control ring of the first fastening mechanism to limit the control ring of the second fastening mechanism to rotate reversely, and enables the control ring of the second fastening mechanism to limit the control ring of the first fastening mechanism to rotate reversely, so that the two control rings are locked with each other, and the workpiece is prevented from loosening due to the fact that a plurality of clamping rods are expanded.
Description
Technical Field
The invention relates to the technical field of welding, in particular to welding equipment for producing a valve.
Background
In the prior art, the invention patent with the publication number of CN111230382B discloses a welding process for connecting a valve and a flange, wherein a flange and the valve are welded in a rotating manner after being clamped in a butt joint manner, and the welding mode needs to ensure that the flange and the valve are stably clamped and prevent looseness from being generated in the welding process. Current clamping device mostly presss from both sides tightly respectively to two spare parts, and the welding effect all can be influenced in two spare parts respective rocks when the welding, consequently, needs a welding equipment that can press from both sides two spare parts simultaneously and carry out the welding.
Disclosure of Invention
The invention provides welding equipment for producing a valve, which aims to solve the problem that two parts are easy to loosen when being clamped respectively during welding.
The welding equipment for producing the valve adopts the following technical scheme:
a welding device for producing a valve is used for welding the connecting ends of two workpieces and comprises a locking ring, a fixing ring, a first fastening mechanism, a second fastening mechanism, an adjusting mechanism and a welding mechanism, wherein the fixing ring is fixedly arranged, and the axis of the fixing ring is a first vertically extending axis; the upper side surface and the lower side surface of the fixing ring are respectively provided with a plurality of vortex grooves; the first fastening mechanism and the second fastening mechanism are identical in structure and respectively comprise a control ring, a connecting assembly and a plurality of clamping rods, the control ring and the fixing ring are coaxial and are rotatably arranged outside the fixing ring around a first axis, the plurality of clamping rods are circumferentially distributed around the first axis, one end of each clamping rod is slidably arranged on the previous clamping rod along the length direction of the previous clamping rod, and the other end of each clamping rod is slidably arranged in the volute groove; the control ring drives the plurality of clamping rods to rotate around the first axis through the connecting assembly, and the plurality of clamping rods are folded or expanded under the limitation of the vortex-shaped groove; the first fastening mechanism and the second fastening mechanism are respectively arranged on the upper side and the lower side of the fixing ring, when the control ring of the first fastening mechanism rotates along a first rotating direction, the clamping rods of the first fastening mechanism are folded to clamp one workpiece, and when the control ring of the second fastening mechanism rotates along a second rotating direction opposite to the first rotating direction, the clamping rods of the second fastening mechanism are folded to clamp another workpiece; the locking ring is sleeved outside the control ring and is coaxial with the control ring, and when the locking ring rotates along the second rotation direction, the control ring of the second fastening mechanism is driven by the adjusting mechanism to rotate along the second rotation direction, until the clamping rod of the second fastening mechanism clamps another workpiece; the rear locking ring continues to rotate and drives the control ring of the first fastening mechanism to rotate along the first direction through the adjusting mechanism until a clamping rod of the first fastening mechanism clamps a workpiece; after the first fastening mechanism and the second fastening mechanism clamp the two workpieces, the adjusting mechanism enables the control ring of the first fastening mechanism to limit the control ring of the second fastening mechanism to rotate along a first direction, and enables the control ring of the second fastening mechanism to limit the control ring of the first fastening mechanism to rotate along a second direction, so that the two control rings are locked with each other, and the relaxation of a plurality of clamping rods is avoided; the welding mechanism comprises a rotating ring and a welding head, the rotating ring is rotatably arranged in the fixed ring and is coaxial with the fixed ring, and the welding head is fixed on the inner side of the rotating ring and is used for welding the connecting ends of the two workpieces when rotating along with the rotating ring.
Furthermore, a plurality of vortex grooves on the upper side surface of the fixing ring form a group, and a plurality of vortex grooves on the lower side surface of the fixing ring form a group; each volute groove is arranged around a first axis, the two ends of each volute groove are respectively a head end and a tail end, the distance between the head end of each volute groove and the first axis is smaller than the distance between the tail end of each volute groove and the first axis, the head ends of a plurality of volute grooves in the same group are located on the same circumference and are uniformly distributed around the first axis in the circumferential direction, and the tail ends of a plurality of volute grooves in the same group are located on the same circumference and are uniformly distributed around the first axis in the circumferential direction; the volute groove on the upper side surface of the fixing ring extends from the head end to the tail end of the fixing ring along a first direction, and the volute groove on the lower side surface of the fixing ring extends from the head end to the tail end of the fixing ring along a second direction; the other end of each clamping rod of the first fastening mechanism is slidably mounted in a volute groove in the upper side face of the fixing ring, so that the plurality of clamping rods of the first fastening mechanism are folded along with the control ring when rotating in a first direction, and each clamping rod of the second fastening mechanism is slidably mounted in a volute groove in the lower side face of the fixing ring, so that the plurality of clamping rods of the second fastening mechanism are folded along with the control ring when rotating in a second direction.
Furthermore, the adjusting mechanism comprises a center ring, a first driving wheel, a second driving wheel, a third driving wheel, a fourth driving wheel and an adjusting ring, the center ring is rotatably sleeved between the fixing ring and the locking ring and is coaxial with the fixing ring, and friction force exists between the center ring and the fixing ring; the second transmission wheel, the third transmission wheel and the fourth transmission wheel are rotatably arranged on the center ring around a vertical axis, the first transmission wheel is rotatably arranged on the center ring around a second axis, and the first transmission wheel, the second transmission wheel, the third transmission wheel and the fourth transmission wheel synchronously rotate around the first axis along with the center ring; the upper end of the inner ring of the locking ring is provided with a conical surface, and the diameter of the upper end of the conical surface is larger than that of the lower end of the conical surface; the second driving wheel comprises a conical part and a cylindrical part, the conical part is positioned at the upper end of the cylindrical part and is coaxial with the cylindrical part, and the lower end of the conical part is small and the upper end of the conical part is large; the first driving wheel is positioned between the conical part and the conical surface of the locking ring and is provided with an initial position and a locking position, the first driving wheel is respectively in contact with and drives the upper end of the conical part and the upper end of the conical surface of the locking ring at the initial position, and the second driving wheel is respectively in contact with and drives the lower end of the conical part and the lower end of the conical surface of the locking ring at the locking position; the cylindrical part is in contact with and drives the outer ring of the control ring of the first fastening mechanism, the third driving wheel is in contact with and drives the outer ring of the control ring of the second fastening mechanism, and the fourth driving wheel is in contact with and drives the inner ring of the locking ring and the third driving wheel respectively; on the premise that the two control rings cannot rotate, the transmission ratio of the locking ring to the center ring is i1 when the locking ring drives the center ring to rotate through the first transmission wheel and the second transmission wheel, and the transmission ratio of the locking ring to the center ring is i2 when the locking ring drives the center ring to rotate through the fourth transmission wheel and the third transmission wheel; when the first driving wheel is located at the locking position, i1 is equal to i2, and when the first driving wheel is located at the initial position, i1 is larger than i 2.
In an initial state, a plurality of clamping rods of the first fastening mechanism are all positioned at the head end of the volute groove on the upper side surface of the fixing ring, and a plurality of clamping rods of the second fastening mechanism are all positioned at the head end of the volute groove on the lower side surface of the fixing ring, so that the control ring of the first fastening mechanism is limited to rotate along the second direction, and the control ring of the second fastening mechanism is limited to rotate along the first direction; the first driving wheel is located at the initial position, the locking ring drives the control ring of the second fastening mechanism to rotate along the second rotation direction through the transmission of the fourth driving wheel and the third driving wheel when rotating along the second rotation direction, and the rotation of the control ring of the first fastening mechanism along the second rotation direction is limited, so that the center ring rotates along the first rotation direction under the transmission of the first driving wheel and the second driving wheel; friction between the central ring and the fixed ring enables the central ring to intermittently rotate, and the control ring of the first fastening mechanism is kept static under the autorotation action of the second driving wheel; when the locking ring continues to rotate along the second rotation direction, the center ring rotates along the first rotation direction under the transmission of the fourth transmission wheel and the third transmission wheel, the rotation speed is higher than that of the center ring when the center ring rotates along the first rotation direction under the transmission of the first transmission wheel and the second transmission wheel, and then the control ring of the first fastening mechanism rotates along the first rotation direction under the rotation action of the center ring until the clamping rods of the first fastening mechanism clamp one workpiece.
The adjusting ring enables the first driving wheel to be in a locking position after the clamping rods of the first fastening mechanism clamp the workpiece, and the control ring of the first fastening mechanism is prevented from rotating along the second rotating direction and the control ring of the second fastening mechanism is prevented from rotating along the first rotating direction.
Furthermore, a telescopic loop bar is arranged between the locking ring and the conical part of the second driving wheel and comprises an inner rod, a sleeve and a spring, the inner rod and the sleeve are sleeved in a sliding mode along a second axis, the other end of the inner rod is fixed to the center ring, and the spring is arranged in the sleeve and enables the other end of the sleeve to be abutted against the adjusting ring; the first driving wheel is rotatably arranged on the sleeve and synchronously moves along the second axis along with the sleeve; the adjusting ring is sleeved outside the locking ring and is in threaded connection with the locking ring, so that when the adjusting ring rotates relative to the locking ring, the adjusting ring can move up and down relative to the locking ring; the first driving wheel is moved to a locking position from an initial position by rotating the adjusting ring to push the sleeve, and the first driving wheel is kept at the locking position by utilizing self-locking of threads between the adjusting ring and the locking ring.
Furthermore, the two ends of each clamping rod are respectively a first end and a second end, each clamping rod is provided with a sliding groove extending along the length direction of the clamping rod, the plurality of clamping rods surround the first axis, the first end of each clamping rod is slidably mounted on the sliding groove on the adjacent clamping rod on the front side, and the second end of each clamping rod is slidably mounted on one vortex-shaped groove; the connecting assembly is formed by hinging and enclosing a plurality of connecting rods around a vertical axis, and the number of the connecting rods is twice of that of the clamping rods of the first fastening mechanism; the hinge positions of the connecting rods are sequentially and alternately a first hinge position and a second hinge position, each first hinge position is arranged on the control ring in a sliding mode along the radial direction of the control ring, and each second hinge position is hinged to the first end of one clamping rod around the vertical axis; the first end that the control ring passes through the connecting rod and drives the supporting rod rotates, makes the second end of supporting rod when the vortex inslot slides from the head end to the end, and the first end of supporting rod moves to the first end direction that is close to another supporting rod in the spout of another supporting rod for a plurality of supporting rods enclose the scope size reduction that closes out.
Furthermore, the conical surfaces of the first driving wheel and the locking ring and the conical part of the second driving wheel are in friction transmission, and the cylindrical part of the second driving wheel and the control ring of the first fastening mechanism, the fourth driving wheel and the locking ring, the fourth driving wheel and the third driving wheel, and the third driving wheel and the control ring of the second fastening mechanism are in gear transmission.
Furthermore, the first driving wheel, the second driving wheel, the third driving wheel, the fourth driving wheel and the telescopic loop bar form a group of driving assemblies, and the plurality of groups of driving assemblies are uniformly distributed around the first axis in the circumferential direction.
The invention has the beneficial effects that: according to the welding equipment for producing the valve, the second fastening mechanism and the first fastening mechanism sequentially clamp two workpieces by rotating the locking ring, and after the workpieces are clamped, the control ring of the first fastening mechanism limits the control ring of the second fastening mechanism to rotate along the first direction, and the control ring of the second fastening mechanism limits the control ring of the first fastening mechanism to rotate along the second direction, so that the two control rings are mutually locked, and the workpieces are prevented from being loosened by the relaxation of a plurality of clamping rods.
Furthermore, the range limited by the plurality of clamping rods of the first fastening mechanism and the second fastening mechanism can be adapted to workpieces with different sizes, the adaptability is strong, and the plurality of clamping rods can ensure that the two workpieces are coaxial when being synchronously folded inwards. And the operation is simple, and the workpiece can be clamped only by respectively putting the two workpieces into the clamping ring and rotating the clamping ring after the two workpieces are abutted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a welding apparatus for manufacturing a valve according to the present invention;
FIG. 2 is a sectional view showing the overall construction of a welding apparatus for manufacturing a valve according to the present invention;
FIG. 3 is an enlarged view of the point A in FIG. 2;
FIG. 4 is a schematic view illustrating the installation of an adjusting ring and a locking ring in the welding apparatus for manufacturing a valve according to the present invention;
FIG. 5 is a schematic view illustrating the installation of the fixing ring and the welding mechanism in the welding apparatus for manufacturing a valve according to the present invention;
FIG. 6 is a schematic view of a first fastening mechanism of the welding apparatus for manufacturing a valve according to the present invention;
FIG. 7 is a schematic view of an adjusting mechanism of the welding apparatus for manufacturing a valve according to the present invention;
FIG. 8 is an enlarged view of the point B in FIG. 7;
FIG. 9 is a schematic view of the structure of the clamping rod in the welding equipment for manufacturing valve of the present invention;
in the figure: 100. locking a ring; 200. a fixing ring; 210. a volute groove; 300. a first fastening mechanism; 310. a control loop; 311. mounting a column; 320. a connection assembly; 321. a connecting rod; 330. a clamping rod; 331. a chute; 332. a first traveler; 333. a second strut; 400. a second fastening mechanism; 500. an adjustment mechanism; 510. a center ring; 520. a first drive pulley; 530. a second transmission wheel; 531. a tapered portion; 532. a cylindrical portion; 540. a third transmission wheel; 550. a fourth transmission wheel; 560. an adjusting ring; 570. a telescopic loop bar; 571. an inner rod; 572. a sleeve; 573. a spring; 600. a welding mechanism; 610. a rotating ring; 620. and (5) welding a head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
An embodiment of a welding apparatus for manufacturing a valve according to the present invention, which is used for welding the connection ends of two workpieces, as shown in fig. 1 to 9, includes a locking ring 100, a fixing ring 200, a first fastening mechanism 300, a second fastening mechanism 400, an adjusting mechanism 500, and a welding mechanism 600,
the fixing ring 200 is fixedly arranged, and the axis of the fixing ring 200 is a first vertically extending axis; the upper and lower sides of the fixing ring 200 are respectively provided with a plurality of scroll grooves 210;
the first fastening mechanism 300 and the second fastening mechanism 400 have the same structure, and each of the first fastening mechanism 300 and the second fastening mechanism 400 includes a control ring 310, a connecting assembly 320, and a plurality of clamping rods 330, wherein the control ring 310 is coaxial with the fixing ring 200 and is rotatably mounted outside the fixing ring 200 around a first axis, the plurality of clamping rods 330 are circumferentially distributed around the first axis, one end of each clamping rod 330 is slidably mounted on the previous clamping rod 330 along the length direction of the previous clamping rod 330, and the other end of each clamping rod 330 is slidably mounted on the spiral groove 210; the control ring 310 drives the plurality of clamping rods 330 to rotate around the first axis through the connection assembly 320, and enables the plurality of clamping rods 330 to be closed or expanded under the limitation of the spiral groove 210; the first fastening mechanism 300 and the second fastening mechanism 400 are respectively arranged at the upper side and the lower side of the fixing ring 200, and when the control ring 310 of the first fastening mechanism 300 rotates along a first rotation direction, the plurality of clamping rods 330 of the first fastening mechanism 300 are drawn together to clamp one workpiece, and when the control ring 310 of the second fastening mechanism 400 rotates along a second rotation direction opposite to the first rotation direction, the plurality of clamping rods 330 of the second fastening mechanism 400 are drawn together to clamp another workpiece; wherein the first turning direction is clockwise from top to bottom, and the second turning direction is anticlockwise from top to bottom;
the locking ring 100 is sleeved outside the control ring 310 and is coaxial with the control ring 310, when the locking ring 100 rotates along the second rotation direction, the control ring 310 of the second fastening mechanism 400 is firstly driven by the adjusting mechanism 500 to rotate along the second rotation direction, and the clamping rod 330 of the second fastening mechanism 400 clamps another workpiece; the rear locking ring 100 continues to rotate and drives the control ring 310 of the first fastening mechanism 300 to rotate in the first direction through the adjusting mechanism 500 until the clamping rod 330 of the first fastening mechanism 300 clamps a workpiece; after the first fastening mechanism 300 and the second fastening mechanism 400 clamp two workpieces, the adjusting mechanism 500 makes the control ring 310 of the first fastening mechanism 300 limit the control ring 310 of the second fastening mechanism 400 to rotate along the first rotation direction, and makes the control ring 310 of the second fastening mechanism 400 limit the control ring 310 of the first fastening mechanism 300 to rotate along the second rotation direction, so that the two control rings 310 are locked with each other, and the relaxation of the plurality of clamping rods 330 is avoided;
the welding mechanism 600 includes a rotating ring 610 and a welding head 620, the rotating ring 610 is rotatably installed in the fixing ring 200 and is coaxial with the fixing ring 200, and the welding head 620 is fixed inside the rotating ring 610 and welds the connection ends of the two workpieces while rotating with the rotating ring 610.
In the present embodiment, the plurality of spiral grooves 210 on the upper side of the fixing ring 200 are grouped, and the plurality of spiral grooves 210 on the lower side of the fixing ring 200 are grouped; each vortex-shaped groove 210 is arranged around a first axis, the two ends of each vortex-shaped groove 210 are respectively a head end and a tail end, the distance between the head end of each vortex-shaped groove 210 and the first axis is smaller than the distance between the tail end of each vortex-shaped groove 210 and the first axis, the head ends of a plurality of vortex-shaped grooves 210 in the same group are located on the same circumference and are uniformly distributed around the circumference of the first axis, and the tail ends of a plurality of vortex-shaped grooves 210 in the same group are located on the same circumference and are uniformly distributed around the circumference of the first axis; the spiral groove 210 of the upper side of the fixing ring 200 extends from the head end to the tail end thereof in the first direction, and the spiral groove 210 of the lower side of the fixing ring 200 extends from the head end to the tail end thereof in the second direction; the other end of each clamping rod 330 of the first fastening mechanism 300 is slidably mounted in one of the spiral grooves 210 on the upper side of the fixing ring 200 such that the plurality of clamping rods 330 of the first fastening mechanism 300 are folded when the control ring 310 rotates in the first rotation direction, and each clamping rod 330 of the second fastening mechanism 400 is slidably mounted in one of the spiral grooves 210 on the lower side of the fixing ring 200 such that the plurality of clamping rods 330 of the second fastening mechanism 400 are folded when the control ring 310 rotates in the second rotation direction.
In the embodiment, the adjusting mechanism 500 comprises a center ring 510, a first driving wheel 520, a second driving wheel 530, a third driving wheel 540, a fourth driving wheel 550 and an adjusting ring 560, the center ring 510 is rotatably sleeved between the fixed ring 200 and the locking ring 100 and is coaxial with the fixed ring 200, and a friction force exists between the center ring 510 and the fixed ring 200; the second transmission wheel 530, the third transmission wheel 540 and the fourth transmission wheel 550 are rotatably mounted on the center ring 510 around a vertical axis, the first transmission wheel 520 is rotatably mounted on the center ring 510 around a second axis, and the first transmission wheel 520, the second transmission wheel 530, the third transmission wheel 540 and the fourth transmission wheel 550 synchronously rotate around the first axis along with the center ring 510; the upper end of the inner ring of the locking ring 100 is provided with a conical surface, and the diameter of the upper end of the conical surface is larger than that of the lower end of the conical surface; the second transmission wheel 530 comprises a conical part 531 and a cylindrical part 532, the conical part 531 is positioned at the upper end of the cylindrical part 532 and is coaxial with the cylindrical part 532, the lower end of the conical part 531 is small, the upper end of the conical part 531 is large, an included angle between a generatrix of the conical part 531 and a first axis is equal to an included angle between a generatrix of a conical surface and the first axis, and a second axis is parallel to the conical part 531 and two generatrixes closest to the conical surface; the first driving wheel 520 is positioned between the conical part 531 and the conical surface of the locking ring 100 and has an initial position and a locking position, the first driving wheel 520 respectively contacts and drives the upper end of the conical part 531 and the upper end of the conical surface of the locking ring 100 in the initial position, and the second driving wheel 530 respectively contacts and drives the lower end of the conical part 531 and the lower end of the conical surface of the locking ring 100 in the locking position; the cylindrical part 532 contacts and drives the outer ring of the control ring 310 of the first fastening mechanism 300, the third transmission wheel 540 contacts and drives the outer ring of the control ring 310 of the second fastening mechanism 400, and the fourth transmission wheel 550 contacts and drives the inner ring of the locking ring 100 and the third transmission wheel 540 respectively; wherein, the transmission ratio of the second transmission wheel 530 to the control ring 310 of the first fastening mechanism 300 is a, the transmission ratio of the third transmission wheel 540 to the control ring 310 of the second fastening mechanism 400 is b, and a and b are equal by configuring the second transmission wheel 530 and the third transmission wheel 540; when the first transmission wheel 520 is located at the locking position, when the locking ring 100 drives the second transmission wheel 530 to rotate through the first transmission wheel 520, the transmission ratio of the locking ring 100 to the second transmission wheel 530 is m, when the locking ring 100 drives the third transmission wheel 540 to rotate through the fourth transmission wheel 550, the transmission ratio of the locking ring 100 to the third transmission wheel 540 is n, and the sizes of m and n are equal through the arrangement of the first transmission wheel 520, the second transmission wheel 530, the third transmission wheel 540 and the fourth transmission wheel 550; on the premise that the two control rings 310 cannot rotate, the transmission ratio of the locking ring 100 to the center ring 510 is i1 when the locking ring 100 drives the center ring 510 to rotate through the first driving wheel 520 and the second driving wheel 530, and the transmission ratio of the locking ring 100 to the center ring 510 when the locking ring 100 drives the center ring 510 to rotate through the fourth driving wheel 550 and the third driving wheel 540 is i 2; when the first driving wheel 520 is located at the locking position, i1 is equal to i2, and when the first driving wheel 520 is located at the initial position, i1 is larger than i 2; that is, when the rotation speed of the locking ring 100 is constant, the rotation speed of the center ring 510 when the first drive pulley 520 is located at the initial position is less than the rotation speed of the center ring 510 when the first drive pulley 520 is located at the locking position. Specifically, when the first driving wheel 520 is at the initial position, the ratio of the diameter of the upper end of the tapered surface of the locking ring 100 to the diameter of the upper end of the tapered portion 531 of the second driving wheel 530 is n1, when the first driving wheel 520 is at the locking position, the ratio of the diameter of the lower end of the tapered surface of the locking ring 100 to the diameter of the lower end of the tapered portion 531 of the second driving wheel 530 is n2, since the diameter of the locking ring 100 is much greater than the diameter of the tapered portion 531, n1 is smaller than n2, that is, when the first driving wheel 520 is at the initial position, the number of turns of the locking ring 100 per turn drives the second driving wheel 530 to rotate is smaller than the number of turns of the locking ring 100 per turn drives the second driving wheel 530 per turn when the first driving wheel 520 is at the locking position. When the first driving wheel 520 is in the locked position and the rotation direction of the center ring 510 is the same as the rotation direction of the second driving wheel 530 or the third driving wheel 540, the control ring 310 rotates with the center ring 510 and the rotation direction is the same as the rotation direction of the center ring 510; when the first driving wheel 520 is at the initial position and the rotation direction of the center ring 510 is opposite to the rotation direction of the second driving wheel 530 or the third driving wheel 540, the control ring 310 rotates with the second driving wheel 530 or the third driving wheel 540 and the rotation direction is opposite to the rotation direction of the second driving wheel 530 or the third driving wheel 540.
In an initial state, the plurality of clamping rods 330 of the first fastening mechanism 300 are all located at the head end of the spiral groove 210 on the upper side of the fixing ring 200, and the plurality of clamping rods 330 of the second fastening mechanism 400 are all located at the head end of the spiral groove 210 on the lower side of the fixing ring 200, so that the size of a range enclosed by the plurality of clamping rods 330 is largest, a workpiece is convenient to place, the control ring 310 of the first fastening mechanism 300 is limited to rotate along the second rotation direction, and the control ring 310 of the second fastening mechanism 400 is limited to rotate along the first rotation direction; and the first driving wheel 520 is located at the initial position, when the locking ring 100 rotates along the second direction, the control ring 310 of the second fastening mechanism 400 is driven to rotate along the second direction through the transmission of the fourth driving wheel 550 and the third driving wheel 540, and the rotation of the control ring 310 of the first fastening mechanism 300 along the second direction is limited, so that the center ring 510 rotates along the first direction under the transmission of the first driving wheel 520 and the second driving wheel 530; since the first driving wheel 520 is located at the initial position, the rotation speed of the center ring 510 in the first rotation direction is not enough to drive the control ring 310 of the second fastening mechanism 400 to rotate in the first rotation direction, and the friction between the center ring 510 and the fixed ring 200 causes the center ring 510 to rotate intermittently, so that the control ring 310 of the first fastening mechanism 300 is kept stationary under the self-rotation action of the second driving wheel 530; when the clamping rods 330 of the second fastening mechanism 400 clamp another workpiece, the control ring 310 of the second fastening mechanism 400 cannot rotate further in the second rotation direction, and the locking ring 100 continues to rotate in the second rotation direction, the central ring 510 rotates in the first rotation direction under the transmission of the fourth transmission wheel 550 and the third transmission wheel 540 at a higher rotation speed than that of the central ring 510 rotating in the first rotation direction under the transmission of the first transmission wheel 520 and the second transmission wheel 530, so that the control ring 310 of the first fastening mechanism 300 rotates in the first rotation direction under the rotation of the central ring 510 until the clamping rods 330 of the first fastening mechanism 300 clamp one workpiece.
The adjustment ring 560 places the first drive pulley 520 in a locked position after the plurality of clamping bars 330 of the first fastening mechanism 300 clamp the workpiece, impeding rotation of the control ring 310 of the first fastening mechanism 300 in the second rotational direction and rotation of the control ring 310 of the second fastening mechanism 400 in the first rotational direction. Specifically, after the first fastening mechanism 300 and the second fastening mechanism 400 respectively clamp two workpieces, the control ring 310 of the first fastening mechanism 300 cannot further rotate in the first direction, and the control ring 310 of the second fastening mechanism 400 cannot further rotate in the second direction; if the clamping rods 330 of the first fastening mechanism 300 are loosened, the control ring 310 of the first fastening mechanism 300 is driven to rotate by a predetermined angle along the second rotation direction, and then the control ring 310 of the second fastening mechanism 400 rotates by the predetermined angle along the second rotation direction through the transmission of the second transmission wheel 530, the first transmission wheel 520, the locking ring 100, the fourth transmission wheel 550 and the third transmission wheel 540, and the control ring 310 of the first fastening mechanism 300 cannot rotate along the second rotation direction because the control ring 310 of the second fastening mechanism 400 cannot further rotate along the second rotation direction, so that the two control rings 310 of the first fastening mechanism 300 and the second fastening mechanism 400 form self-locking.
In this embodiment, a telescopic bar 570 is disposed between the locking ring 100 and the tapered portion 531 of the second transmission wheel 530, the telescopic bar 570 includes an inner bar 571, a sleeve 572, and a spring 573, the inner bar 571 and the sleeve 572 are slidably fitted along the second axis, the other end of the inner bar 571 is fixed to the center ring 510, the spring 573 is disposed in the sleeve 572, and the other end of the sleeve 572 is abutted against the adjusting ring 560; the first drive wheel 520 is rotatably mounted to the sleeve 572 and moves synchronously with the sleeve 572 along the second axis; the adjusting ring 560 is sleeved outside the locking ring 100 and is in threaded connection with the locking ring 100, so that the adjusting ring 560 can move up and down relative to the locking ring 100 when the adjusting ring 560 rotates relative to the locking ring 100; the first drive wheel 520 is moved from the initial position to the locked position by rotating the adjustment ring 560 to push the sleeve 572, and the first drive wheel 520 is maintained in the locked position by self-locking with the threads between the adjustment ring 560 and the locking ring 100.
In this embodiment, two ends of each clamping rod 330 are respectively a first end and a second end, each clamping rod 330 is provided with a sliding slot 331 extending along the length direction thereof, the plurality of clamping rods 330 surround the first axis, the first end of each clamping rod 330 is slidably mounted on the sliding slot 331 of the front adjacent clamping rod 330, and the second end of each clamping rod 330 is slidably mounted on one scroll-shaped slot 210; specifically, a first end of each clamping rod 330 is provided with a first sliding column 332, a second end of each clamping rod 330 is provided with a second sliding column 333, the first sliding column 332 is slidably mounted on a sliding groove 331 on the adjacent clamping rod 330, and the second sliding column 333 is slidably mounted on the spiral groove 210; the connecting assembly 320 is formed by hinging and enclosing a plurality of connecting rods 321 around a vertical axis, and the number of the connecting rods 321 is twice that of the clamping rods 330 of the first fastening mechanism 300; the hinge positions of the plurality of connecting rods 321 are sequentially and alternately a first hinge position and a second hinge position, each first hinge position is radially and slidably mounted on the control ring 310 along the control ring 310, and each second hinge position is hinged to the first end of one clamping rod 330 around a vertical axis; specifically, the inner ring of the control ring 310 is provided with a plurality of mounting posts 311 extending in the radial direction of the control ring 310, and each first hinge position is slidably mounted on the mounting posts 311; the control ring 310 drives the first ends of the clamping rods 330 to rotate through the connecting rods 321, so that when the second ends of the clamping rods 330 slide from the head ends to the tail ends in the spiral grooves 210, the first ends of the clamping rods 330 move towards the first end direction close to another clamping rod 330 in the sliding grooves 331 of another clamping rod 330, and the size of the range enclosed by the clamping rods 330 is reduced.
In this embodiment, the conical surfaces of the first transmission wheel 520 and the locking ring 100 and the conical portion 531 of the second transmission wheel 530 are in friction transmission, and the cylindrical portion 532 of the second transmission wheel 530 and the control ring 310 of the first fastening mechanism 300, the fourth transmission wheel 550 and the locking ring 100, the fourth transmission wheel 550 and the third transmission wheel 540, and the third transmission wheel 540 and the control ring 310 of the second fastening mechanism 400 are in gear transmission.
In this embodiment, the first driving wheel 520, the second driving wheel 530, the third driving wheel 540, the fourth driving wheel 550 and the telescopic rods 570 form a group of driving assemblies, and the plurality of groups of driving assemblies are circumferentially and uniformly distributed around the first axis.
In an initial state, the fixing ring 200 is fixed on an external bracket to keep fixed, second ends of the clamping rods 330 of the first fastening mechanism 300 and the second fastening mechanism 400 are located at the head end of the spiral groove 210, so that the size of a range enclosed by the clamping rods 330 is the largest, and the sleeve 572 enables the first transmission wheel 520 to be located at an initial position under the pushing of the spring 573; when in use, two workpieces are respectively arranged in the space enclosed by the plurality of clamping rods 330 of the first fastening mechanism 300 and the space enclosed by the plurality of clamping rods 330 of the second fastening mechanism 400, and are abutted at the rotating ring 610; the locking ring 100 rotates along the second rotation direction, the locking ring 100 drives the control ring 310 of the second fastening mechanism 400 to rotate along the second rotation direction through the transmission of the fourth transmission wheel 550 and the third transmission wheel 540, and further drives the clamping rods 330 to rotate through the connection assembly 320 and slide in the spiral groove 210, so that the plurality of clamping rods 330 are folded until the plurality of clamping rods 330 of the second fastening mechanism 400 clamp the workpiece; the locking ring 100 continues to rotate in the second direction, so that the control ring 310 of the first fastening mechanism 300 rotates in the first direction, and the plurality of clamping rods 330 of the first fastening mechanism 300 are closed until the workpiece is clamped; by rotating the adjustment ring 560, the adjustment ring 560 moves the first driving wheel 520 to the locked position by pushing the sleeve 572, and the control rings 310 of the first fastening mechanism 300 and the second fastening mechanism 400 are locked to each other.
When unlocking is required, the adjusting ring 560 is rotated in the reverse direction, allowing the sleeve 572 to move the first driving wheel 520 upward to the initial position under the action of the spring 573, and rotating the locking ring 100 in the first direction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a production welding equipment for valve for the link to two work pieces welds its characterized in that: comprises a locking ring, a fixing ring, a first fastening mechanism, a second fastening mechanism, an adjusting mechanism and a welding mechanism,
the fixing ring is fixedly arranged, and the axis of the fixing ring is a first vertically extending axis; the upper side surface and the lower side surface of the fixing ring are respectively provided with a plurality of vortex grooves;
the first fastening mechanism and the second fastening mechanism are identical in structure and respectively comprise a control ring, a connecting assembly and a plurality of clamping rods, the control ring and the fixing ring are coaxial and are arranged outside the fixing ring in a rotating mode around a first axis, the plurality of clamping rods are circumferentially distributed around the first axis, one end of each clamping rod is slidably arranged on the previous clamping rod along the length direction of the previous clamping rod, and the other end of each clamping rod is slidably arranged in the volute groove; the control ring drives the plurality of clamping rods to rotate around the first axis through the connecting assembly, and the plurality of clamping rods are folded or expanded under the limitation of the vortex-shaped groove; the first fastening mechanism and the second fastening mechanism are respectively arranged on the upper side and the lower side of the fixing ring, when the control ring of the first fastening mechanism rotates along a first rotating direction, the clamping rods of the first fastening mechanism are folded to clamp one workpiece, and when the control ring of the second fastening mechanism rotates along a second rotating direction opposite to the first rotating direction, the clamping rods of the second fastening mechanism are folded to clamp another workpiece;
the locking ring is sleeved outside the control ring and is coaxial with the control ring, and when the locking ring rotates along the second rotation direction, the control ring of the second fastening mechanism is driven by the adjusting mechanism to rotate along the second rotation direction, until the clamping rod of the second fastening mechanism clamps another workpiece; the rear locking ring continues to rotate and drives the control ring of the first fastening mechanism to rotate along the first direction through the adjusting mechanism until a clamping rod of the first fastening mechanism clamps a workpiece; after the first fastening mechanism and the second fastening mechanism clamp the two workpieces, the adjusting mechanism enables the control ring of the first fastening mechanism to limit the control ring of the second fastening mechanism to rotate along a first direction, and enables the control ring of the second fastening mechanism to limit the control ring of the first fastening mechanism to rotate along a second direction, so that the two control rings are locked with each other, and the relaxation of a plurality of clamping rods is avoided;
the welding mechanism comprises a rotating ring and a welding head, the rotating ring is rotatably arranged in the fixed ring and is coaxial with the fixed ring, and the welding head is fixed on the inner side of the rotating ring and is used for welding the connecting ends of the two workpieces when rotating along with the rotating ring.
2. The welding equipment for producing the valve according to claim 1, wherein: the fixing ring is provided with a plurality of vortex grooves on the upper side surface, and the fixing ring is provided with a plurality of vortex grooves on the lower side surface; each volute groove is arranged around a first axis, the two ends of each volute groove are respectively a head end and a tail end, the distance between the head end of each volute groove and the first axis is smaller than the distance between the tail end of each volute groove and the first axis, the head ends of a plurality of volute grooves in the same group are located on the same circumference and are uniformly distributed around the first axis in the circumferential direction, and the tail ends of a plurality of volute grooves in the same group are located on the same circumference and are uniformly distributed around the first axis in the circumferential direction; the volute groove on the upper side surface of the fixing ring extends from the head end to the tail end of the fixing ring along a first direction, and the volute groove on the lower side surface of the fixing ring extends from the head end to the tail end of the fixing ring along a second direction; the other end of each clamping rod of the first fastening mechanism is slidably mounted in a volute groove in the upper side face of the fixing ring, so that the plurality of clamping rods of the first fastening mechanism are folded along with the control ring when rotating in a first direction, and each clamping rod of the second fastening mechanism is slidably mounted in a volute groove in the lower side face of the fixing ring, so that the plurality of clamping rods of the second fastening mechanism are folded along with the control ring when rotating in a second direction.
3. The welding equipment for producing the valve according to claim 2, wherein: the adjusting mechanism comprises a center ring, a first driving wheel, a second driving wheel, a third driving wheel, a fourth driving wheel and an adjusting ring, the center ring is rotatably sleeved between the fixing ring and the locking ring and is coaxial with the fixing ring, and friction force exists between the center ring and the fixing ring; the second driving wheel, the third driving wheel and the fourth driving wheel are rotatably arranged on the center ring around a vertical axis, the first driving wheel is rotatably arranged on the center ring around a second axis, and the first driving wheel, the second driving wheel, the third driving wheel and the fourth driving wheel synchronously rotate around the first axis along with the center ring; the upper end of the inner ring of the locking ring is provided with a conical surface, and the diameter of the upper end of the conical surface is larger than that of the lower end of the conical surface; the second driving wheel comprises a conical part and a cylindrical part, the conical part is positioned at the upper end of the cylindrical part and is coaxial with the cylindrical part, and the lower end of the conical part is small and the upper end of the conical part is large; the first driving wheel is positioned between the conical part and the conical surface of the locking ring and is provided with an initial position and a locking position, the first driving wheel is respectively in contact with and drives the upper end of the conical part and the upper end of the conical surface of the locking ring at the initial position, and the second driving wheel is respectively in contact with and drives the lower end of the conical part and the lower end of the conical surface of the locking ring at the locking position; the cylindrical part is in contact with and drives the outer ring of the control ring of the first fastening mechanism, the third driving wheel is in contact with and drives the outer ring of the control ring of the second fastening mechanism, and the fourth driving wheel is in contact with and drives the inner ring of the locking ring and the third driving wheel respectively; on the premise that the two control rings cannot rotate, the transmission ratio of the locking ring to the center ring is i1 when the locking ring drives the center ring to rotate through the first transmission wheel and the second transmission wheel, and the transmission ratio of the locking ring to the center ring is i2 when the locking ring drives the center ring to rotate through the fourth transmission wheel and the third transmission wheel; when the first driving wheel is located at the locking position, i1 is equal to i2, and when the first driving wheel is located at the initial position, i1 is larger than i 2;
in an initial state, a plurality of clamping rods of the first fastening mechanism are all positioned at the head end of the volute groove on the upper side surface of the fixing ring, and a plurality of clamping rods of the second fastening mechanism are all positioned at the head end of the volute groove on the lower side surface of the fixing ring, so that the control ring of the first fastening mechanism is limited to rotate along the second direction, and the control ring of the second fastening mechanism is limited to rotate along the first direction; the first driving wheel is located at the initial position, the locking ring drives the control ring of the second fastening mechanism to rotate along the second rotation direction through the transmission of the fourth driving wheel and the third driving wheel when rotating along the second rotation direction, and the rotation of the control ring of the first fastening mechanism along the second rotation direction is limited, so that the center ring rotates along the first rotation direction under the transmission of the first driving wheel and the second driving wheel; friction between the central ring and the fixed ring enables the central ring to intermittently rotate, and the control ring of the first fastening mechanism is kept static under the autorotation action of the second driving wheel; when the locking ring continues to rotate along the second rotation direction, the center ring rotates along the first rotation direction under the transmission of the fourth transmission wheel and the third transmission wheel, and the rotation speed is higher than that of the center ring rotating along the first rotation direction under the transmission of the first transmission wheel and the second transmission wheel, so that the control ring of the first fastening mechanism rotates along the first rotation direction under the rotation action of the center ring until the clamping rods of the first fastening mechanism clamp one workpiece;
the adjustment ring positions the first drive wheel in a locked position after the clamping rods of the first fastening mechanism clamp the workpiece, preventing the control ring of the first fastening mechanism from rotating in the second direction and preventing the control ring of the second fastening mechanism from rotating in the first direction.
4. The welding equipment for producing the valve according to claim 3, wherein: a telescopic loop bar is arranged between the locking ring and the conical part of the second driving wheel and comprises an inner rod, a sleeve and a spring, the inner rod and the sleeve are sleeved in a sliding mode along a second axis, the other end of the inner rod is fixed to the center ring, and the spring is arranged in the sleeve and enables the other end of the sleeve to abut against the adjusting ring; the first driving wheel is rotatably arranged on the sleeve and synchronously moves along the second axis along with the sleeve; the adjusting ring is sleeved outside the locking ring and is in threaded connection with the locking ring, so that the adjusting ring can move up and down relative to the locking ring when the adjusting ring rotates relative to the locking ring; the first driving wheel is moved to a locking position from an initial position by rotating the adjusting ring to push the sleeve, and the first driving wheel is kept at the locking position by utilizing self-locking of threads between the adjusting ring and the locking ring.
5. The welding equipment for producing the valve according to claim 1, wherein: the two ends of each clamping rod are respectively a first end and a second end, each clamping rod is provided with a sliding groove extending along the length direction of the clamping rod, the plurality of clamping rods surround the first axis, the first end of each clamping rod is slidably mounted on the sliding groove of the adjacent clamping rod on the front side, and the second end of each clamping rod is slidably mounted on one vortex-shaped groove; the connecting assembly is formed by hinging and enclosing a plurality of connecting rods around a vertical axis, and the number of the connecting rods is twice of that of the clamping rods of the first fastening mechanism; the hinge positions of the connecting rods are sequentially and alternately a first hinge position and a second hinge position, each first hinge position is arranged on the control ring in a sliding mode along the radial direction of the control ring, and each second hinge position is hinged to the first end of one clamping rod around the vertical axis; the control ring drives the first end of the clamping rod to rotate through the connecting rod, so that when the second end of the clamping rod slides from the head end to the tail end in the volute groove, the first end of the clamping rod moves towards the direction of the first end close to another clamping rod in the sliding groove of another clamping rod, and the size of the range enclosed by the plurality of clamping rods is reduced.
6. The welding equipment for producing the valve according to claim 3, wherein: the conical surfaces of the first driving wheel and the locking ring and the conical part of the second driving wheel are in friction transmission, and the cylindrical part of the second driving wheel and the control ring of the first fastening mechanism, the fourth driving wheel and the locking ring, the fourth driving wheel and the third driving wheel and the control ring of the second fastening mechanism are in gear transmission.
7. The welding equipment for producing the valve according to claim 4, wherein: the first transmission wheel, the second transmission wheel, the third transmission wheel, the fourth transmission wheel and the telescopic loop bar form a group of transmission assemblies, and the transmission assemblies are provided with a plurality of groups and are uniformly distributed in the circumferential direction around the first axis.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211059236.3A CN115122010B (en) | 2022-08-31 | 2022-08-31 | Welding equipment for producing valves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211059236.3A CN115122010B (en) | 2022-08-31 | 2022-08-31 | Welding equipment for producing valves |
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| CN115122010A true CN115122010A (en) | 2022-09-30 |
| CN115122010B CN115122010B (en) | 2022-11-25 |
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| CN202211059236.3A Active CN115122010B (en) | 2022-08-31 | 2022-08-31 | Welding equipment for producing valves |
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| CN113634981A (en) * | 2021-08-29 | 2021-11-12 | 陈宏� | Welding system and welding method based on industrial manufacturing |
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| CH634247A5 (en) * | 1979-03-29 | 1983-01-31 | Fischer Ag Georg | Apparatus for the concentric clamping of workpieces which are circular in cross-section, in particular tubes |
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| CN115122010B (en) | 2022-11-25 |
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