CN112355546A - System for welding helical blade on circular inner cylinder wall - Google Patents
System for welding helical blade on circular inner cylinder wall Download PDFInfo
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- CN112355546A CN112355546A CN202011244657.4A CN202011244657A CN112355546A CN 112355546 A CN112355546 A CN 112355546A CN 202011244657 A CN202011244657 A CN 202011244657A CN 112355546 A CN112355546 A CN 112355546A
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- welding
- steel cylinder
- blade
- blade clamping
- clamping
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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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0252—Steering means
Abstract
The invention relates to a system for welding a helical blade on a circular inner cylinder wall, which comprises blade clamping equipment for clamping the helical blade, a steel cylinder assembly device for clamping a circular steel cylinder, and a welding device for performing spot welding primary connection between the helical blade and the steel cylinder and realizing helical welding between the helical blade and the steel cylinder, wherein the steel cylinder assembly device is provided with a steel cylinder rotation adjusting mechanism for driving the steel cylinder to rotate around the center line of the steel cylinder, the welding device comprises a welding arm and a welding device arranged on the welding arm, the welding arm is movably arranged along the length direction of the steel cylinder and penetrates into an inner cavity of the steel cylinder for welding, the blade clamping equipment is assembled on a blade clamping walking frame, and the blade clamping walking frame adjusts the helical blade clamped on the blade clamping equipment to enter the steel cylinder and be concentrically arranged with the steel cylinder. Through above-mentioned scheme, it can effectual realization match corresponding welding demand to the reliable clamp dress of the helical blade of unidimensional, guarantees the reliable welding between helical blade and the steel cylinder.
Description
Technical Field
The invention relates to the field of helical blade welding devices, in particular to a system for welding helical blades on a circular inner cylinder wall.
Background
The traditional welding mode of helical blade is that divide into a plurality of sub-blades with holistic helical blade, then cooperate with a plurality of sub-blades respectively with the axle or with the steel cylinder, the manual welding of a slice with each sub-blade weld rather than the assembly body of assembly to also link together through the welding between each sub-blade. The welding mode is low in efficiency, manual welding quality is difficult to guarantee, and the quality of products can be affected when the blades are connected together through welding.
Disclosure of Invention
To solve the above problems, the present invention provides a system for welding a helical blade on a circular inner cylindrical wall.
The technical scheme adopted by the invention is as follows.
The utility model provides a system for welding helical blade on circular inner tube wall which characterized in that: the blade clamping device comprises blade clamping equipment for clamping a helical blade, a steel cylinder assembling device for clamping a circular steel cylinder, and a welding device for performing spot welding primary connection between the helical blade and the steel cylinder and realizing spiral welding between the helical blade and the steel cylinder, wherein the steel cylinder assembling device is provided with a steel cylinder rotation adjusting mechanism for driving the steel cylinder to rotate around the central line of the steel cylinder, the welding device comprises a welding arm and a welding device arranged on the welding arm, the welding arm is movably arranged along the length direction of the steel cylinder and penetrates into the inner cavity of the steel cylinder to be welded, the blade clamping equipment is assembled on a blade clamping walking frame, and the blade clamping walking frame adjusts the helical blade clamped on the blade clamping equipment to enter the steel cylinder and be concentrically arranged with the steel cylinder.
The blade clamping equipment is assembled on the blade clamping walking frame in an overhanging mode, the blade clamping equipment and the welding device are respectively arranged on the outer sides of two ends of the steel cylinder assembling device, and a connecting device used for connecting the blade clamping equipment into an inner cavity of the steel cylinder is further arranged beside the welding device.
The connecting and guiding device comprises a connecting and guiding blade clamping walking frame movably mounted in the depth direction of the steel cylinder and a connecting and guiding device which is arranged on the connecting and guiding blade clamping walking frame and used for extending into an inner cavity of the steel cylinder, the connecting and guiding device is detachably assembled and connected with an overhanging end of the blade clamping equipment, the connecting and guiding device is movably mounted on the connecting and guiding blade clamping walking frame, a connecting and guiding adjusting mechanism for adjusting the state of the connecting and guiding device is arranged on the connecting and guiding blade clamping walking frame, the connecting and guiding adjusting mechanism adjusts the working state that the connecting and guiding device is arranged corresponding to the blade clamping equipment, or the avoiding state that the connecting and guiding device extends into the inner cylinder of the steel cylinder for avoiding is formed.
The blade clamping walking frame is provided with a supporting bracket for supporting the blade clamping equipment, the supporting bracket is assembled on the blade clamping walking frame in a lifting mode, and the supporting bracket is arranged at intervals along the length direction of the steel cylinder.
The connecting and leading device comprises a connecting and leading arm which can stretch into the steel cylinder, a connecting and leading connecting sleeve is arranged at the overhanging end of the connecting and leading arm, the connecting and leading connecting sleeve is rotatably assembled on the connecting and leading arm, the inner cavity of the connecting and leading connecting sleeve is arranged into a conical tooth surface, and a conical tooth column part which is detachably connected and assembled with the connecting and leading connecting sleeve is arranged on the blade clamping equipment.
The welding device comprises a welding gun, the welding gun is movably arranged on a welding gun support, and a welding gun adjusting mechanism for adjusting the orientation of a welding gun muzzle is arranged on the welding gun support.
The welding gun support is assembled on the spiral welding arm in a lifting mode, and the welding gun support is connected with the welding gun lifting adjusting mechanism.
The steel cylinder rotation adjusting mechanism is a roller rotation adjusting mechanism. The blade clamping walking frame is rotatably arranged on the blade clamping walking frame. The welding gun is rotatably installed on the installation seat, the axis of the rotary installation is vertically arranged, the welding gun support is rotatably installed on the welding gun lifting frame, the welding gun lifting frame is assembled on the spiral welding arm in a lifting mode, and the welding gun is arranged in a mode of deviating from the installation axis of the rotary installation of the welding gun support.
The invention also provides a method for welding the helical blade on the circular inner cylinder wall, which comprises the following operation steps: fix the spiral blade and press from both sides the dress according to the standard of predetermineeing the helix on blade presss from both sides the dress, then send into the fixed spiral blade of attitude adjustment preset the mounted position in the steel cylinder inner chamber that the attitude adjustment was good on the steel cylinder fixed equipment, adopt the mode of spot welding to carry out preliminary welding between spiral blade and the steel cylinder, then press from both sides the dress equipment with the spiral blade phase separation and with the blade and press from both sides the dress equipment and take out from the steel cylinder, then adopt spiral welding's mode to reliably welded connection between spiral blade and the steel cylinder again.
The steel cylinder is horizontally arranged, and the blade clamping equipment is concentrically and horizontally pushed into the steel cylinder from one end of the steel cylinder. Blade presss from both sides dress equipment and sets up along its circumference interval and is used for pressing from both sides the dress unit of pressing from both sides that spiral blade pressed from both sides, welding mechanism stretches into inside the steel cylinder from the vacancy region between two adjacent dress units of pressing from both sides, select each point corresponding with this region to carry out spot welding and realize connecting between each circle spiral blade and the steel cylinder inner wall, then withdraw from welding mechanism from the steel cylinder, adjust the rotatory w degree of steel cylinder and blade clamp dress equipment, the numerical value of w is unanimous with adjacent two radians of pressing from both sides between the dress unit, adjust welding mechanism again and stretch into inside the steel cylinder from the vacancy region between two adjacent dress units of pressing from both sides and carry out spot welding, until all circles spiral blade between all adjacent the centre gripping unit and all carried out welded connection between the steel cylinder inner wall, thereby realize carrying out preliminary welding between spiral blade and the steel cylinder.
And adjusting the welding gun to translate in the steel cylinder, and enabling the steel cylinder to rotate around the central line of the steel cylinder, so that the welding line of the welding gun on the inner wall of the steel cylinder is consistent with the shape of the helical blade, and the helical welding of the helical blade is realized. Firstly, adjusting the direction of a muzzle of a welding gun to point at the joint of the a surface of the helical blade and the inner wall of the steel cylinder, gradually moving the welding gun from the a end to the b end of the steel cylinder, simultaneously adjusting the forward rotation of the steel cylinder to realize the automatic welding of the a surface of the helical blade and the inner wall of the steel cylinder, then adjusting the direction of the welding gun to enable the muzzle of the welding gun to point at the joint of the b surface of the helical blade and the inner wall of the steel cylinder, gradually moving the welding gun from the b end to the a end of the steel cylinder, simultaneously adjusting the reverse rotation of the steel cylinder to realize the automatic welding of the b surface of the helical blade and the inner wall of the steel cylinder, then completely moving the welding gun out of the steel cylinder to finish the spiral welding between the helical blade and the steel cylinder, wherein the a surface and the b surface are two surfaces of the helical blade, the a end and the.
When the blade clamping equipment is adjusted to push the spiral blade from the end b to enter the inner cavity of the steel cylinder, the leading device is stretched into from the end a of the steel cylinder to lead the blade clamping equipment. The connecting device and the blade clamping equipment are detachably assembled in a jaw clutch mode. The concentric assembly of the steel cylinder and the helical blade is realized by adjusting the height of the steel cylinder fixing equipment and the height of the blade clamping equipment.
The blade clamping device is rotatably arranged on the blade clamping walking frame, the steel cylinder and the blade clamping device are adjusted to rotate synchronously, and the welding position between different adjacent clamping units is converted to be welded correspondingly with the welding mechanism. The three groups of clamping units are adopted to clamp the blades, the whole spiral blade is sleeved on the blade clamping equipment, the pitch of the spiral blade is adjusted to be consistent with a preset value, each clamping opening on the clamping fixture is adjusted to clamp the spiral blade, the clamping openings are arranged in an A spiral line shape, and the shape of the A spiral line is consistent with that of the spiral blade after the pitch is adjusted. And the welding gun is adjusted to rotate around the rotating shaft to change the direction of the welding gun muzzle.
The invention has the beneficial effects that: according to the technical scheme provided by the invention, the clamping fixture can effectively and reliably clamp the helical blades with different sizes, and the helical blades and the steel cylinder are reliably welded by matching with corresponding welding requirements.
Drawings
FIG. 1 is a process of assembling a helical blade on a welding assembly fixture to match a steel cylinder;
FIG. 2 is a process of the welding device joining the helical blade and the steel cylinder together by spot welding;
FIG. 3 is a process of the welding device connecting the helical blade and the steel cylinder together by traveling a helical path;
FIG. 4 is an isometric view of the weld assembly fixture;
FIG. 5 is a front view of the weld assembly fixture of FIG. 4;
FIG. 6 is a partial right side view of the weld assembly fixture of FIG. 4;
FIG. 7 is a partial right side view of the weld assembly fixture in a drive state;
FIG. 8 is a front view of the weld assembly fixture of FIG. 7;
FIG. 9 is an isometric view of the weld assembly fixture of FIG. 4 with a protective housing.
The reference numbers in the figures are:
100-clamp body, 110-support frame, 111-left and right support slide rails, 120-protective shell, 200-clamping unit, 210-clamping part, 211-clamping opening, 220-mounting frame, 221-fixed rod, 222-movable rod, 223-movable part, 225-spacing connecting rod, 300-A adjusting unit, 310-A adjusting part, 311-A adjusting shaft, 312-A1 adjusting section, 313-A2 adjusting section, 314-A nut part, 315-adjusting connecting rod, 320-A clutch part, 321-A clutch gear, 322-A limiting part, 323-A rack, 324-A spring, 325-A abutting part, 330-A driving part, 331-A driving gear, 400-B adjusting unit, 410-B adjusting shaft, 411-B1 adjusting section, 412-B2 adjusting section, 413-B annular nut sleeve, 414-A mounting section, 415-supporting connecting rod, 500-steel cylinder, 600-welding device, 610-welding gun, 620-welding point, 700-steel cylinder assembling device, 800-helical blade, 900-connecting device, 1000-blade clamping walking frame, 1010-supporting cylinder and 1020-transferring supporting frame.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.
As used herein, the terms "parallel," "perpendicular," and the like are not limited to their strict geometric definition, but include tolerances for machining or human error, reasonable and inconsistent.
The technical scheme of the invention is as shown in figures 1-9, a system for welding a helical blade on a circular inner cylinder wall comprises a blade clamping device for clamping the helical blade, a steel cylinder assembly device 700 for clamping a round steel cylinder and a welding device 600 for performing spot welding primary connection between the helical blade and the steel cylinder and realizing the helical welding between the helical blade and the steel cylinder, wherein the steel cylinder assembly device 700 is provided with a steel cylinder rotation adjusting mechanism for driving the steel cylinder to rotate around the central line of the steel cylinder, the welding device comprises a welding arm and a welding device 600 arranged on the welding arm, the welding arm is movably arranged along the length direction of the steel cylinder and penetrates into the inner cavity of the steel cylinder for welding, the blade clamping equipment (rotating) is assembled on the blade clamping walking frame 1000, and the blade clamping walking frame 1000 adjusts the helical blades clamped on the blade clamping equipment to enter the steel cylinder and be concentrically arranged with the steel cylinder.
Through the implementation of the technical scheme, the reliable welding of the helical blade can be realized, and the labor intensity of the whole welding operation is low. The equipment can also comprise a control device, the control device is consistent with the mode adopted by common automation equipment, and welding parameters including thread pitch, welding speed, welding gun position parameters and the like are input through an operation panel on the control device, so that reliable welding can be effectively and automatically carried out on the spiral blade.
The detailed scheme is that the blade clamping device is assembled on the blade clamping walking frame 1000 in a suspension-extension mode, the blade clamping device and the welding device 600 are respectively arranged on the outer sides of two ends of the steel cylinder assembling device 700, and the connecting device 900 used for connecting the blade clamping device into the inner cavity of the steel cylinder is further arranged beside the welding device 600. Therefore, the whole equipment is more reasonable in layout, and the occupied space of the whole equipment is saved.
The guiding device 900 comprises a guiding blade clamping walking frame 1000 movably mounted in the depth direction of the steel cylinder and a guiding device 900 arranged on the guiding blade clamping walking frame 1000 and used for extending into the inner cavity of the steel cylinder, the guiding device 900 is detachably assembled and connected with the overhanging end of the blade clamping equipment, the guiding device 900 is movably mounted on the guiding blade clamping walking frame 1000, a guiding adjusting mechanism for adjusting the state of the guiding device is arranged on the guiding blade clamping walking frame 1000, the guiding adjusting mechanism adjusts the working state of the guiding device corresponding to the blade clamping equipment or adjusts the avoiding state of the guiding device extending into the inner cylinder of the steel cylinder for avoiding. Because whole blade clamping device is the overhanging form and arranges, through the setting of connecing the device that draws, improve the blade and impel the stability of assembling in the steel cylinder. Meanwhile, the synchronous rotation between the helical blade and the steel cylinder during spot welding is facilitated. Specifically, the connecting and guiding device 900 includes a connecting and guiding arm capable of extending into the steel cylinder, a connecting and guiding connection sleeve is arranged at the overhanging end of the connecting and guiding arm, the connecting and guiding connection sleeve is rotatably assembled on the connecting and guiding arm, an inner cavity of the connecting and guiding connection sleeve is arranged to be a tapered tooth surface, and a tapered tooth column part which is detachably connected and assembled with the connecting and guiding connection sleeve is arranged on the blade clamping equipment. Other corresponding quick-connecting mechanisms with similar functions can also be adopted for operation.
The blade clamping walking frame 1000 is provided with a support bracket for supporting the blade clamping equipment, the support bracket is assembled on the blade clamping walking frame in a lifting manner, and the support bracket is arranged at intervals along the length direction of the steel cylinder. With such an arrangement, the reliability of clamping the helical blade on the blade clamping device is improved.
Welding set 600 includes welder, and welder movable mounting is provided with the welder adjustment mechanism of adjustment welder muzzle orientation on the welder support. The welding gun support is assembled on the spiral welding arm in a lifting mode, and the welding gun support is connected with the welding gun lifting adjusting mechanism. The steel cylinder rotation adjusting mechanism is a roller rotation adjusting mechanism. The blade clamping walking frame is rotatably arranged on the blade clamping walking frame. The welding gun is rotatably installed on the installation seat, the axis of the rotary installation is vertically arranged, the welding gun support is rotatably installed on the welding gun lifting frame, the welding gun lifting frame is assembled on the spiral welding arm in a lifting mode, and the welding gun is arranged in a mode of deviating from the installation axis of the rotary installation of the welding gun support. Through the arrangement of the scheme, the welding gun can meet the requirements of various postures of welding requirements between the helical blade and the steel cylinder, the occupied space of the whole welding adjusting mechanism is small, and the structure of the blade clamping device can be fine.
The invention also provides a method for welding the helical blade on the circular inner cylinder wall, which comprises the following operation steps: fix the spiral blade and press from both sides the dress according to the standard of predetermineeing the helix on blade presss from both sides the dress, then send into the fixed spiral blade of attitude adjustment preset the mounted position in the steel cylinder inner chamber that attitude adjustment was good on the steel cylinder assembly quality, adopt the mode of spot welding to carry out preliminary welding between spiral blade and the steel cylinder, then press from both sides the dress equipment with the spiral blade phase separation and with the blade and press from both sides the dress equipment and take out from the steel cylinder, then adopt spiral welding's mode to reliably welded connection between spiral blade and the steel cylinder again.
Specifically, the steel cylinder is horizontally arranged, and the blade clamping device is concentrically and horizontally pushed into the steel cylinder from one end of the steel cylinder.
Blade presss from both sides dress equipment and sets up along its circumference interval and is used for pressing from both sides the dress unit of pressing from both sides that spiral blade pressed from both sides, welding mechanism stretches into inside the steel cylinder from the vacancy region between two adjacent dress units of pressing from both sides, select each point corresponding with this region to carry out spot welding and realize connecting between each circle spiral blade and the steel cylinder inner wall, then withdraw from welding mechanism from the steel cylinder, adjust the rotatory w degree of steel cylinder and blade clamp dress equipment, the numerical value of w is unanimous with adjacent two radians of pressing from both sides between the dress unit, adjust welding mechanism again and stretch into inside the steel cylinder from the vacancy region between two adjacent dress units of pressing from both sides and carry out spot welding, until all circles spiral blade between all adjacent the centre gripping unit and all carried out welded connection between the steel cylinder inner wall, thereby realize carrying out preliminary welding between spiral blade and the steel cylinder.
And adjusting the welding gun to translate in the steel cylinder, and enabling the steel cylinder to rotate around the central line of the steel cylinder, so that the welding line of the welding gun on the inner wall of the steel cylinder is consistent with the shape of the helical blade, and the helical welding of the helical blade is realized. Firstly, adjusting the direction of a muzzle of a welding gun to point at the joint of the a surface of the helical blade and the inner wall of the steel cylinder, gradually moving the welding gun from the a end to the b end of the steel cylinder, simultaneously adjusting the forward rotation of the steel cylinder to realize the automatic welding of the a surface of the helical blade and the inner wall of the steel cylinder, then adjusting the direction of the welding gun to enable the muzzle of the welding gun to point at the joint of the b surface of the helical blade and the inner wall of the steel cylinder, gradually moving the welding gun from the b end to the a end of the steel cylinder, simultaneously adjusting the reverse rotation of the steel cylinder to realize the automatic welding of the b surface of the helical blade and the inner wall of the steel cylinder, then completely moving the welding gun out of the steel cylinder to finish the spiral welding between the helical blade and the steel cylinder, wherein the a surface and the b surface are two surfaces of the helical blade, the a end and the. When the blade clamping equipment is adjusted to push the spiral blade from the end b to enter the inner cavity of the steel cylinder, the leading device is stretched into from the end a of the steel cylinder to lead the blade clamping equipment.
The connecting device and the blade clamping equipment are detachably assembled in a jaw clutch mode. The concentric assembly of the steel cylinder and the helical blade is realized by adjusting the height of the steel cylinder assembly device and the height of the blade clamping equipment. The blade clamping device is rotatably arranged on the blade clamping walking frame, the steel cylinder and the blade clamping device are adjusted to rotate synchronously, and the welding position between different adjacent clamping units is converted to be welded correspondingly with the welding mechanism.
The three groups of clamping units are adopted to clamp the blades, the whole spiral blade is sleeved on the blade clamping equipment, the pitch of the spiral blade is adjusted to be consistent with a preset value, each clamping opening on the clamping fixture is adjusted to clamp the spiral blade, the clamping openings are arranged in an A spiral line shape, and the shape of the A spiral line is consistent with that of the spiral blade after the pitch is adjusted. And the welding gun is adjusted to rotate around the rotating shaft to change the direction of the welding gun muzzle.
As shown in fig. 4, the blade clamping apparatus includes a clamp body 100, clamping units 200 are provided at intervals in the circumferential direction of the clamp body 100, the clamping unit 200 is provided with clamping parts 210 at intervals, the clamping parts 210 are provided with the clamping openings 211, each clamping opening 211 on each clamping part 210 is positioned on a preset spiral line, still be provided with the A adjusting element of the pitch of adjusting the preset helix on anchor clamps body 100 and adjust the B adjusting element 400 of the external diameter of presetting the helix, the A adjusting element includes each A regulating part 310, each A separation and reunion portion 320 and A drive division 330, each A regulating part 310 corresponds each clamping unit 200 respectively and arranges, each A separation and reunion portion 320 corresponds each A regulating part 310 and sets up respectively, A drive division 330 is connected with each A regulating part 310 transmission through each A separation and reunion portion 320, each A regulating part 310, each A separation and reunion portion 320, A drive division 330 and B adjusting element 400 are in following X and Y two kinds of states: and (4) X state: starting the B adjusting unit 400, adjusting each clamping unit 200 to move to a position close to the center of the clamp body 100, enabling each A clutch part 320 to be in a transmission connection state, and operating the A driving part 330 to synchronously adjust the distance between the clamping openings 211 on each clamping unit 200; y state: starting the B adjusting unit 400, adjusting each clamping unit 200 to move towards the side far away from the center of the clamp body 100, and turning each A clutch part 320 to a transmission disconnection state, so that each clamping opening 211 on each clamping unit 200 falls onto a preset spiral line respectively; the preset spiral line is the spiral line which is consistent with the state that the spiral blade 800 needs to be adjusted and fixed.
As shown in fig. 1, the spiral blade 800 is placed on each of the clamping openings 211 of the clamp body 100, the clamp body 100 is rotatably mounted on the material transferring support frame 1020, and the material transferring support frame 1020 is mounted on the blade clamping traveling frame 1000. Each of the chucking holes 211 is provided on a predetermined spiral line. The device can adjust the pitch between the spiral lines and the outer diameter of the spiral lines to adapt to the spiral blades with different sizes. After the spiral blade is placed on the clamping opening 211, the spiral blade 800 and the clamp body 100 are integrally moved, and the supporting cylinder 1010 on the clamp body 100 supports the middle part and the end part of the clamp body 100 to be matched with the steel cylinder 500. The steel cylinder 500 is placed on the steel cylinder assembly device 700 which can make the steel cylinder rotate, and a connecting device 900 for receiving the other end of the overhanging-state clamp is arranged beside the steel cylinder 500. When the helical blade is about to contact the steel cylinder 500, the supporting cylinder 1010 at the end part returns for avoiding the steel cylinder 500, when the supporting cylinder 1010 at the middle part is about to contact the steel cylinder 500, the connecting device 900 extends into one end of the steel cylinder 500 where the supporting clamp is suspended, and then the supporting cylinder 1010 at the middle part returns. As shown in fig. 1-2, the helical blade can be more stable by supporting both ends of the helical blade, and the collision of the helical blade with the steel cylinder 500 due to the deformation of the fixture can be reduced. Finally, the helical blade 800 and the steel cylinder 500 are coupled together by the welding device 600.
As shown in fig. 2, the spiral blade 800 and the steel cylinder 500 are spot-welded together along the length direction of the steel cylinder 500 by extending the welding gun 610 of the welding device 600 into the inner cavity of the steel cylinder 500, and the spiral blade 800 and the steel cylinder 500 are connected together by the welding spot 620 shown in fig. 2, and then the welding gun is withdrawn. The steel cylinder 500 and the helical blade 800 are rotated by 120 degrees simultaneously, the helical blade and the tubular product are spot-welded together along the tube length direction of the steel cylinder 500, and then the welding gun is returned again, the tubular object and the clamp body are rotated by 120 degrees simultaneously, and the helical blade and the tubular product are spot-welded together along the tube length direction of the tubular product. The 3 rows of welding spots are welded along the circumferential direction of the steel cylinder 500 uniformly, so that the steel cylinder 500 and the helical blade 800 are connected together more firmly through spot welding.
As shown in fig. 3, after the jig body 100 is withdrawn, the steel cylinder 500 is rotated while the welding gun 610 is moved to move along the tube length direction of the steel cylinder 500, and the rotational speed and the moving speed are adjusted so that the welding path is also a spiral line and has the same pitch as that of the spiral blade.
Of course, the height of the welding gun can be adjusted, the welding gun is assembled on a manipulator which can rotate and move up and down, and the manipulator is assembled on a suspension rod which can move horizontally, so that the welding gun is suitable for helical blades with different outer diameters, and various requirements of spot welding and continuous welding are met. The steel cylinder assembling apparatus 700 is also adjustable up and down to adapt to steel cylinders 500 with different outer diameters.
This welding along the path of the helical blade 800 may provide a very secure attachment of the helical blade to the assembled steel can 500. Compared with the traditional welding spiral blade, the spiral blade has obvious advantages. In the traditional method for welding the helical blade, the helical blade is divided into a plurality of small helical blades which are spliced together one by one. Obviously, the assembly fixture disclosed by the invention not only can obviously improve the welding efficiency of the helical blade, but also can improve the welding quality. The outer diameter and pitch can be adjusted so that the clamp can accommodate a variety of sizes of helical blades 800.
The specific structure of the mechanism for adjusting the pitch and the outer diameter dimension is specifically described below.
As shown in fig. 5, the a adjusting part 310 includes an a adjusting shaft 311 rotatably installed on the a clamping unit 200, the a adjusting shaft 311 is connected to each of the clamping parts 210 through an a transmission assembly, a length direction of the a adjusting shaft 311 coincides with a length direction of a predetermined spiral line, the clamping unit 200 is slidably installed in a radial direction of the clamp body 100, the a clutch part 320 is installed at one end of the a adjusting shaft 311, and switching of the a clutch part 320 between a transmission connection state and a transmission disconnection state is achieved by adjusting radial movement of the clamping unit 200 along the clamp body 100.
The a clutch part 320 includes an a clutch gear 321 mounted on the a adjustment shaft 311, and the a driving part 330 is in driving connection with the a clutch gear 321 when the a clutch gear 321 is in a driving connection state.
The a driving part 330 includes an a driving gear 331, the a driving gear 331 is rotatably mounted on the jig body 100, the a driving gear 331 and the center of the jig body 100 coincide with each other, and the a clutch gear 321 and the a driving gear 331 are engaged and connected in a transmission manner when the a clutch gear 321 is in a transmission connection state.
The a clutch gear 321 may be in two states, one is that the a clutch gear 321 and the a drive gear 331 are not in a connected transmission state as shown in fig. 5 and 6, and the other is that the a clutch gear 321 and the a drive gear 331 are in a connected transmission state as shown in fig. 7 and 8.
The a clutch part 320 further includes an a restricting part 322, and when the a driving part 330 is in the transmission disconnected state, the a restricting part 322 restricts the rotation of the a clutch gear 321, and when the a driving part 330 is in the transmission connected state, the a restricting part 322 releases the restriction of the a clutch gear 321.
The a restricting part 322 includes an a rack 323, the a rack 323 is movably installed, the a rack 323 restricts rotation of the a clutch gear 321 when engaged with the a clutch gear 321, and the a rack 323 releases restriction of the a clutch gear 321 when separated from the a clutch gear 321.
The A rack 323 is located on the outer side of the A clutch gear 321, the body length direction of the A rack 323 is perpendicular to the radial direction of the A clamp body 100, the A rack 323 is fixedly installed along the body length direction, and the A rack 323 is movably installed along the tooth height direction.
The a rack 323 is installed in a floating mode through an a spring 324, the a spring 324 drives the a rack 323 and the a clutch gear 321 to be meshed and connected, the a rack 323 is assembled on the clamping unit 200, an a abutting portion 325 is arranged on the moving path of the a rack 323, and the a abutting portion 325 abuts against the a rack 323 so that the a rack 323 and the a clutch gear 321 are in a separated state.
As shown in fig. 6, when the a clutch gear 321 and the a drive gear 331 are not in a connected transmission state, the a clutch gear 321 is restricted in rotation by the a rack 323. As shown in fig. 7, when the a clutch gear 321 and the a drive gear 331 are in a connected transmission state, the a rack 323 is restricted by the a abutting portion 325 so that the a clutch gear 321 can rotate.
As shown in fig. 8, in a front view of the clamp with a portion of the clamping portion hidden, the clamp body 100 is circumferentially provided with supporting units at intervals, each supporting unit includes a supporting frame 110 fixedly installed along a radial direction of the clamp body 100, each clamping unit 200 includes a mounting frame 220 slidably installed along the radial direction of the clamp body 100, each mounting frame 220 is provided with a fixed rod 221 fixedly installed and a movable rod 222 movably installed along the radial direction of the clamp body 100, each fixed rod 221 is provided with a clamping portion 210 at equal intervals, each clamping portion 210 is slidably installed on the corresponding fixed rod 221, each movable rod 222 is provided with a movable portion 223 at equal intervals, each movable portion 223 is slidably installed on the corresponding movable rod 222, each fixed rod 221 and each a corresponding adjustment shaft 311 are arranged in parallel, each movable rod 222 is located between the corresponding fixed rod 221 and each a corresponding adjustment shaft 311, the movable portions 223 and the clamping portions 210 are arranged at intervals along a length direction of the corresponding movable rods, two ends of the spacing connecting rod 225 are respectively hinged and assembled with the movable part 223 and the clamping part 210, adjacent spacing connecting rods 225 are arranged in a V shape, an A1 adjusting section 312 and an A2 adjusting section 313 are arranged on an A adjusting shaft 311, the A1 adjusting section and the A2 adjusting section are thread sections with opposite thread turning directions, an A nut part 314 which forms a screw nut adjusting mechanism is respectively arranged on the A1 adjusting section and the A2 adjusting section, an A adjusting part 310 which is arranged corresponding to the A nut part is further arranged on the movable rod 222, an adjusting connecting rod 315 is arranged between the A adjusting part 310 and the A nut part 314, two ends of the adjusting connecting rod 315 are respectively hinged and connected with the A adjusting part 310 and the A nut part 314, and two adjacent adjusting connecting rods are arranged in a V shape.
As shown in fig. 5 and 8, the a clutch gear 321 rotates to drive the a adjusting shaft 311 to rotate, the a adjusting shaft 311 rotates to adjust the two a nut portions 314 to approach or separate from each other, the adjusting movable rod 222 approaches the fixed rod 221 when approaching each other, and the adjusting movable rod 222 separates from the fixed rod 221 when the two a nut portions 314 separate from each other. When the movable lever 222 approaches the fixed lever 221, the pitch link 225, the clamping portion 210, and the movable portion 223 cooperate to adjust the pitch of the thread to increase, and when the movable lever 222 moves away from the fixed lever 221, the pitch link 225, the clamping portion 210, and the movable portion 223 cooperate to adjust the pitch of the thread to decrease.
The B adjusting unit 400 comprises a B adjusting shaft 410, the B adjusting shaft 410 and a driving gear are correspondingly arranged, a B1 adjusting section 411 and a B2 adjusting section 412 are arranged on the B adjusting shaft 410, the B1 adjusting section and the B2 adjusting section are thread sections with opposite thread turning directions, a B1 adjusting section and a B2 adjusting section are respectively provided with a B annular nut sleeve 413 which forms a screw nut adjusting mechanism, an A adjusting rod 311 is further provided with an A mounting part 414 which is correspondingly arranged with the B annular nut sleeve, a support connecting rod 415 is respectively arranged between the A mounting part 414 and two B annular nuts 413, two ends of the support connecting rod 415 are respectively hinged with the A mounting part 414 and the B annular nut 413, and the two support connecting rods 415 are arranged in a V shape.
The supporting frame 110 comprises left and right supporting rails 111, the mounting frame 220 comprises left and right mounting beams, the left and right mounting beams 229 are slidably mounted on the left and right supporting rails, respectively, and the a abutting portion 325 is disposed on the fixture body 100.
The fixed rod 221, the movable rod 222 and the A adjusting shaft 311 are all installed on the left and right installation beams 229, the movable rod 222 can slide along the left and right installation beams 229, the left and right installation beams 229 are installed on the left and right support sliding rails 111 in a sliding manner, when the B adjusting shaft 410 is rotated, the two B annular nut sleeves 413 can be adjusted to be close to or away from each other, when the two B annular nut sleeves 413 are close to each other, the support connecting rod 415 adjusts the A adjusting shaft 311 to be away from the center of the clamp body, the A adjusting shaft 311 drives the left and right installation beams 229 to slide on the left and right support sliding rails 111, and the fixed rod 221 is driven to be away from the center of the clamp. Finally, the outer diameter of the spiral line is adjusted by rotating the B adjusting shaft 410.
As shown in fig. 9, in order to protect the a clutch gear 321 and the a drive gear 331, a protective case 120 is provided outside the gears.
Provided is a posture adjusting method of a clutch type welding clamp.
As shown in fig. 1 to 8, the clamping device includes a B-start adjusting unit for adjusting the clamping units 200 to a position close to the middle of the clamp body 100, so that the a clutch portions 320 on the a adjusting unit are in a transmission connection state, the a driving portion 330 for adjusting the a adjusting unit is used for synchronously adjusting the distance between the clamping ports 211 on the clamping units 200, thereby meeting the pitch requirement of the preset spiral line, and then the B adjusting unit is started again to adjust the clamping units 200 to move to the central position far from the clamp body 100, and adjust the a clutch portions 320 to be in a transmission disconnection state, thereby meeting the outer diameter requirement of the preset spiral line.
As shown in fig. 4 and 8, the B adjusting shaft 410 is rotated by rotating the rotating knob 411 on the B adjusting shaft 410. Firstly, the A adjusting shaft 311 is rotatably adjusted to be close to the B adjusting shaft 410 through the B adjusting shaft 410, so that the A clutch gear 321 is meshed with the A driving gear 331, the A driving gear 331 is sleeved on the rotating handle 411, and the A clutch gear 321 is driven to rotate through rotating the A driving gear 331, so that the A adjusting shaft 311 is driven to rotatably adjust a proper thread pitch to adapt to the thread pitch of the pre-welded helical blade.
Then, the rotating handle 411 is rotated to adjust the center position of each clamping opening 211 far away from the clamp body 100, so as to adjust the outer diameter of the spiral line to the outer diameter of the pre-welded spiral blade. At this time, the a rack 323 cooperates with the a clutch gear 321 to restrict the rotation of the a adjusting shaft 311 so that the pitch is not changed.
As shown in fig. 5-7, the a clutch part 320 is formed by using a movably mounted a clutch gear, and the switching of the a clutch part 320 between the transmission connection state and the transmission disconnection state is realized by adjusting the movement of the clutch gear.
An a limiting part 322 is further disposed beside the a clutch gear 321, and the a limiting part 322 is used to limit the rotational freedom of the a clutch gear 321 in the transmission disconnection state.
An A limiting part 322 is formed by an A rack 323 movably arranged relative to the A clutch gear 321, the A rack 323 is adjusted to be meshed with the A gear, and the freedom degree of the A rack 323 along the length direction is limited, so that the limitation of the freedom degree of the A clutch gear 321 is realized.
The a rack 323 is disposed outside the a clutch gear 321, and the a rack 323 is disposed to be floatingly mounted in the radial direction of the jig body 100, and when the grip unit 200 is close to the center of the jig body 100, the a abutment 325 on the jig body 100 abuts the a rack 323 so that the a rack 323 and the a clutch gear 321 are separated.
As shown in fig. 4 and 8, the a clamping unit 200 is movably mounted on the clamp body 100 along the radial direction of the clamp body 100, an a adjusting shaft 311 is adopted to form an a adjusting part 310, the clamping part 210 is slidably mounted on the fixed rod 221 on the clamping unit 200 at equal intervals, the movable rod 222 on the clamping unit 200 is provided with movable parts 223 movably mounted at equal intervals, each movable part 223 is connected with the clamping part 210 in an assembling way through a spacing connecting rod 225, and the adjustment of the spacing between the movable rod 222 and the fixed rod 221 is realized by adjusting the rotation of the a adjusting shaft 311 through an a clutch gear 321.
As shown in fig. 8, two a1 adjusting sections 312 and a2 adjusting sections 313 with opposite thread directions are arranged on an a adjusting shaft 311, a nut part 314 is respectively arranged on an a1 adjusting section and an a2 adjusting section, an a adjusting part 310 is further arranged on the movable rod 222, the a adjusting part 310 and the nut part 314 are connected by an adjusting link 315, the a adjusting shaft 311 is rotated to enable the distance between the a adjusting shaft 311 and the movable rod 222 to change in a trend, the distance between the movable rod 222 and the fixed rod 221 to change in a trend, the trends of a and b are opposite, and the trend of a is that the distance is increased or decreased.
As shown in fig. 6 to 8, by providing a B adjusting shaft 410 at the center of the clamp body 100, providing a B1 adjusting section 411 and a B2 adjusting section 412 with opposite thread directions on the B adjusting shaft 410, providing a B ring nut sleeve 413 constituting a lead screw nut adjusting mechanism on each of the B1 and the B2 adjusting sections, providing an a mounting section 414 on the clamping unit 200, connecting the a mounting section 414 and the two B ring nuts 413 by using a support link 415, and rotating the B adjusting shaft 410 to move the clamping unit 200 closer to or away from the center of the clamp body 100.
As shown in fig. 6 to 7, the a drive section 330 is formed by an a drive gear 331, and the a clutch gear 321 is disposed in mesh with the a drive gear 331 in the transmission connection state.
As shown in fig. 8, the a mounting portion 414 is provided on the a adjustment shaft 311, the B1 adjustment segment 411 and the B2 adjustment segment 412 are provided at both ends of the B adjustment shaft 410, and the a1 adjustment segment 312 and the a2 adjustment segment 313 are provided at both ends of the a adjustment shaft 311.
As shown in fig. 8, it is needless to say that a common air cylinder or the like may be used to adjust the distance between the a adjustment shaft 311 and the movable rod 222, and the distance between the a adjustment shaft 311 and the B adjustment shaft 410. Compared with an air cylinder, the mechanical spacing adjusting mode is relatively more reliable, simple in structure and low in cost.
The step of adopting above-mentioned welding assembly jig gesture adjustment mechanism to carry out helical blade welding assembly does, adjusts clamping unit 200 on the welding assembly jig to the position that is close to the center earlier, adjusts the pitch of clamping mouth 211 for the pitch of clamping mouth is unanimous with predetermineeing, then adjusts clamping unit 200 and moves to the outside, makes the position of clamping mouth 211 corresponding with helical blade's external diameter. Then, the steel cylinder is assembled on the steel cylinder assembling device 700, then the blade clamping walking frame 1000 is started to enable the welding assembling fixture to extend into the steel cylinder, meanwhile, the supporting frame (supporting cylinder 1010) is started to sequentially retract, the welding assembling fixture is connected by starting the connecting device 900, after the spiral blade is completely in place, the welding device 600 is started to temporarily fix the welding assembling fixture in a spot welding mode, the steel cylinder and the fixture are synchronously adjusted to rotate through the steel cylinder assembling device 700 and the material transferring supporting frame 1020 during the spot welding mode, so that the spot welding can be carried out at different positions, then the welding assembling fixture and the connecting device are withdrawn, then the welding device 600 is adopted to carry out spiral welding, during the spiral welding, the steel cylinder rotates, the welding gun 610 translates along the length direction of the steel cylinder, and the welding gun 610 and the steel cylinder are completely welded into a.
According to the posture adjusting mechanism of the welding assembly fixture and the posture adjusting method of the clutch type welding fixture, the preset pitch and the external diameter of the clamping opening on the welding assembly fixture can be adjusted, the spiral blade with any pitch external diameter can be matched, the spiral blade is firmly supported and positioned, and finally the spiral blade is assembled with the steel cylinder and is firmly connected together through the welding device.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. The utility model provides a system for welding helical blade on circular inner tube wall which characterized in that: the blade clamping device comprises blade clamping equipment for clamping a helical blade, a steel cylinder assembling device for clamping a circular steel cylinder, and a welding device for performing spot welding primary connection between the helical blade and the steel cylinder and realizing spiral welding between the helical blade and the steel cylinder, wherein the steel cylinder assembling device is provided with a steel cylinder rotation adjusting mechanism for driving the steel cylinder to rotate around the central line of the steel cylinder, the welding device comprises a welding arm and a welding device arranged on the welding arm, the welding arm is movably arranged along the length direction of the steel cylinder and penetrates into the inner cavity of the steel cylinder to be welded, the blade clamping equipment is assembled on a blade clamping walking frame, and the blade clamping walking frame adjusts the helical blade clamped on the blade clamping equipment to enter the steel cylinder and be concentrically arranged with the steel cylinder.
2. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 1, wherein: the blade clamping equipment is assembled on the blade clamping walking frame in an overhanging mode, the blade clamping equipment and the welding device are respectively arranged on the outer sides of two ends of the steel cylinder assembling device, and a connecting device used for connecting the blade clamping equipment into an inner cavity of the steel cylinder is further arranged beside the welding device.
3. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 2, wherein: the connecting and guiding device comprises a connecting and guiding blade clamping walking frame movably mounted in the depth direction of the steel cylinder and a connecting and guiding device which is arranged on the connecting and guiding blade clamping walking frame and used for extending into an inner cavity of the steel cylinder, the connecting and guiding device is detachably assembled and connected with an overhanging end of the blade clamping equipment, the connecting and guiding device is movably mounted on the connecting and guiding blade clamping walking frame, a connecting and guiding adjusting mechanism for adjusting the state of the connecting and guiding device is arranged on the connecting and guiding blade clamping walking frame, the connecting and guiding adjusting mechanism adjusts the working state that the connecting and guiding device is arranged corresponding to the blade clamping equipment, or the avoiding state that the connecting and guiding device extends into the inner cylinder of the steel cylinder for avoiding is formed.
4. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 3, wherein: the blade clamping walking frame is provided with a supporting bracket for supporting the blade clamping equipment, the supporting bracket is assembled on the blade clamping walking frame in a lifting mode, and the supporting bracket is arranged at intervals along the length direction of the steel cylinder.
5. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 1, wherein: the connecting and leading device comprises a connecting and leading arm which can stretch into the steel cylinder, a connecting and leading connecting sleeve is arranged at the overhanging end of the connecting and leading arm, the connecting and leading connecting sleeve is rotatably assembled on the connecting and leading arm, the inner cavity of the connecting and leading connecting sleeve is arranged into a conical tooth surface, and a conical tooth column part which is detachably connected and assembled with the connecting and leading connecting sleeve is arranged on the blade clamping equipment.
6. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 1, wherein: the welding device comprises a welding gun, the welding gun is movably arranged on a welding gun support, and a welding gun adjusting mechanism for adjusting the orientation of a welding gun muzzle is arranged on the welding gun support.
7. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 6, wherein: the welding gun support is assembled on the spiral welding arm in a lifting mode, and the welding gun support is connected with the welding gun lifting adjusting mechanism.
8. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 7, wherein: the steel cylinder rotation adjusting mechanism is a roller rotation adjusting mechanism.
9. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 8, wherein: the blade clamping walking frame is rotatably arranged on the blade clamping walking frame.
10. The system for welding helical blades on a circular inner cylindrical wall as claimed in claim 8, wherein: the welding gun is rotatably installed on the installation seat, the axis of the rotary installation is vertically arranged, the welding gun support is rotatably installed on the welding gun lifting frame, the welding gun lifting frame is assembled on the spiral welding arm in a lifting mode, and the welding gun is arranged in a mode of deviating from the installation axis of the rotary installation of the welding gun support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244657.4A CN112355546B (en) | 2020-11-10 | 2020-11-10 | System for welding helical blade on circular inner cylinder wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244657.4A CN112355546B (en) | 2020-11-10 | 2020-11-10 | System for welding helical blade on circular inner cylinder wall |
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| CN112355546A true CN112355546A (en) | 2021-02-12 |
| CN112355546B CN112355546B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2001041194A (en) * | 1999-07-30 | 2001-02-13 | Toyo Kinzoku Kk | Manufacture of impeller |
| JP2007203318A (en) * | 2006-01-31 | 2007-08-16 | Koyo Giken:Kk | Spot welding equipment |
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|---|---|
| CN112355546B (en) | 2023-04-25 |
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