CN113828992A - Double-shaft-head tail type automatic welding positioner and workpiece welding method - Google Patents
Double-shaft-head tail type automatic welding positioner and workpiece welding method Download PDFInfo
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- CN113828992A CN113828992A CN202111181670.4A CN202111181670A CN113828992A CN 113828992 A CN113828992 A CN 113828992A CN 202111181670 A CN202111181670 A CN 202111181670A CN 113828992 A CN113828992 A CN 113828992A
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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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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Abstract
The invention discloses a double-shaft head-tail type automatic welding positioner which comprises a turnover support, a workbench, a rotary position changing device and a first clamp and a second clamp, wherein the turnover support can be arranged around a first shaft in a rotating mode, the workbench is used for placing a workpiece, the rotary position changing device is arranged on the turnover support and is used for driving the workbench to rotate around a second shaft, the first clamp and the second clamp are arranged on the workbench and are used for clamping the workpiece, and the rotary position changing device is connected with the workbench. The double-shaft head-tail automatic welding positioner can realize high-efficiency welding of different types of welding seams on a welding workpiece, and can be compatible with boxes with different sizes. The invention also discloses a workpiece welding method.
Description
Technical Field
The invention belongs to the technical field of welding auxiliary equipment, and particularly relates to a double-shaft head-tail type automatic welding positioner and a workpiece welding method.
Background
At present, the welding of box type parts is widely existed in the production and manufacturing industry, and the welding of box type parts generally has the following characteristics: the size is large, the pose is difficult to change manually, the number of welding seams is large, the distribution is complex, the repetitive work of welding is large, the manual welding efficiency is low, and the situations of wrong welding and missing welding are easy to occur. The welding of box class part wants to avoid above-mentioned problem, can usually realize through automatic welding, and box class automatic welding usually uses end-to-end formula automatic weld positioner. The traditional head-tail automatic welding positioner only has one overturning motion, is difficult to realize the welding of box parts with complex welding seams, has poor welding quality and lacks compatibility for the welding of boxes with different sizes.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a double-shaft head-tail type automatic welding positioner, and aims to improve the welding quality.
In order to achieve the purpose, the invention adopts the technical scheme that: double-shaft-head tail type automatic welding positioner comprises a turnover support capable of being arranged around a first shaft in a rotating mode, a workbench for placing workpieces, a first clamp and a second clamp, wherein the workbench is arranged on the turnover support and used for driving the workbench to rotate around a second shaft, the first clamp and the second clamp are arranged on the workbench and used for clamping the workpieces, the rotary displacement device is connected with the workbench, and the first shaft is perpendicular to the second shaft.
The rotary displacement device comprises a motor base connected with the turnover support and a displacement motor arranged on the motor base and used for driving the workbench to rotate.
The rotary displacement device also comprises a first-stage rotating disk connected with the displacement motor and a second-stage rotating disk connected with the first-stage rotating disk, and the second-stage rotating disk is connected with the workbench.
The rotary displacement device further comprises a motor rear cover arranged on the displacement motor, the first-stage rotating disk is positioned between the motor rear cover and the second-stage rotating disk, and an oil storage tank for storing lubricating media is arranged on the motor rear cover.
The first clamp is connected with the workbench through a first bolt, a plurality of first mounting holes are formed in the workbench, the first bolt penetrates through the first mounting holes, the position of the first clamp on the workbench is adjustable, and the distance between the two first clamps which are arranged oppositely is adjustable.
The second clamp is connected with the workbench through a second bolt, a plurality of second mounting holes are formed in the workbench, the second bolt penetrates through the second mounting holes, the position of the second clamp on the workbench is adjustable, and the distance between the two oppositely arranged second clamps is adjustable.
The first clamp and the second clamp are both hydraulic clamps.
The invention also provides a workpiece welding method, which adopts the double-shaft head-tail automatic welding positioner and comprises the following steps:
s1, fixing the outer frame of the box body on a workbench of a double-shaft head-tail type automatic welding positioner, and then positioning the baffle in the box body inside the outer frame of the box body;
s2, the box body outer frame is in a first horizontal posture, then the baffle in the box body and the bottom plate of the box body outer frame are welded, and then the first reinforcing rib plate and the box body outer frame are welded;
s3, rotating the box outer frame by the double-shaft head-tail type automatic welding positioner to enable the box outer frame to be in a second horizontal posture, and then welding the baffle in the box body with the first side plate of the box outer frame;
s4, the double-shaft head-tail automatic welding positioner rotates the box outer frame to enable the box outer frame to be in a third horizontal posture, then welding the second side plates of the box inner baffle and the box outer frame, arranging the first side plates and the second side plates oppositely, and enabling the box inner baffle to be located between the first side plates and the second side plates.
The step S4 includes:
s401, enabling the box outer frame to rotate by 90 degrees around a first shaft by the aid of a double-shaft head-tail type automatic welding positioner;
s402, rotating the outer frame of the box body by 180 degrees around a second shaft by the double-shaft head-tail automatic welding positioner;
s403, enabling the outer frame of the box body to rotate by 90 degrees around the first shaft by the double-shaft head-tail type automatic welding positioner, and enabling the outer frame of the box body to be in a third horizontal posture;
s404, welding the baffle in the box body and the second side plate of the outer frame of the box body.
In the step S402, the second reinforcing rib plate is welded to the outer frame of the box body.
The double-shaft head-tail automatic welding positioner can realize high-efficiency welding of different types of welding seams on a welding workpiece, is compatible with box parts with different sizes, and can improve the welding efficiency and the welding quality of the box parts.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural view of a biaxial head-to-tail automatic welding positioner of the present invention;
FIG. 2 is an exploded view of the rotary indexing device;
FIG. 3 is a schematic view of the assembly of the dual axis end-to-end automatic weld positioner of the present invention with a workpiece;
FIG. 4 is a schematic view of a biaxial head-to-tail automatic welding positioner and a welding robot in cooperation welding;
FIG. 5 is a schematic view of a structure of a workpiece;
FIG. 6 is a schematic view of the positioning bracket;
labeled as:
1. a base; 2. a head box; 3. a tail box; 4. a turnover driving mechanism; 5. turning over the bracket; 6. a roll-over following mechanism; 7. a rotary displacement device; 701. a motor base; 702. a deflection motor; 703. a motor rear cover; 704. A first-stage rotating disc; 705. a second-stage rotating disc; 706. a first connecting pin;
8. a work table; 801. a first mounting hole; 802. a second mounting hole; 803. a second connecting pin;
9. a first clamp; 10. a second clamp;
11. a first side plate; 12. a second side plate; 13. a base plate; 14. a first end plate; 15. a second end plate; 16. A baffle plate in the box body; 17. a welding robot; 18. a first reinforcing rib plate; 19. a second reinforcing rib plate; 20. A first positioning groove; 21. a second positioning groove.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1 to 5, the invention provides a double-shaft head-tail automatic welding positioner, which comprises a base 1, a head box 2, a tail box 3, a turnover driving mechanism 4, a turnover following mechanism 6, a turnover support 5 capable of being rotatably arranged around a first shaft, a workbench 8 for placing a workpiece, a rotary displacement device 7 arranged on the turnover support 5 and used for driving the workbench 8 to rotate around a second shaft, and a first clamp 9 and a second clamp 10 which are arranged on the workbench 8 and used for clamping the workpiece, wherein the rotary displacement device 7 is connected with the workbench 8, and the first shaft is vertical to the second shaft.
Specifically, as shown in fig. 1 to 4, the head box 2 and the tail box 3 are vertically arranged, the head box 2 and the tail box 3 are fixedly connected with the base 1, the turning driving mechanism 4 is arranged on the head box 2, the turning following mechanism 6 is arranged on the tail box 3, the turning support 5 is located between the turning driving mechanism 4 and the turning following mechanism 6, the turning support 5 is connected with the turning driving mechanism 4 and the turning following mechanism 6, the turning driving mechanism 4 is used for providing a driving force for enabling the turning support 5 to rotate around the first shaft, the turning following mechanism 6 is rotatably arranged on the tail box 3, the turning support 5 is horizontally arranged, and the turning support 5 is located above the base 1. The rotary displacement device 7 comprises a motor base 701 connected with the overturning support 5 and a displacement motor 702 arranged on the motor base 701 and used for driving the workbench 8 to rotate, the displacement motor 702 is used for providing driving force for enabling the workbench 8 to rotate around a second shaft, the first shaft is parallel to the horizontal direction, and the overturning driving mechanism 4 and the overturning following mechanism 6 are positioned on the same straight line parallel to the first shaft. The motor base 701 is fixedly connected with the overturning bracket 5, the position changing motor 702 is fixedly arranged on the motor base 701, and the axis of the position changing motor 702 is parallel to the second shaft. The working table 8 can do the overturning motion along with the overturning bracket 5 and also can do the rotating motion along with the rotating displacement device 7.
As shown in fig. 1, the inversion driving mechanism 4 is provided in the head box 2, and the inversion following mechanism 6 is provided in the tail box 3; the overturning driving mechanism 4 consists of a stepless variable frequency speed regulation servo motor, a primary rotating disk and a secondary rotating disk, but a supporting disk fixed by an auxiliary motor is additionally arranged in the overturning driving mechanism 4; in addition, the integral structure of the turnover following mechanism 6 in the tail box 3 and the two driving mechanisms is also similar, but a stepless variable frequency speed regulation servo motor for providing power is lacked; overall, the motion mechanisms in the three boxes are very similar, and have better replacement and compatibility.
As shown in fig. 2, the rotary indexing device 7 further includes a primary rotary disk 704 connected to the indexing motor 702 and a secondary rotary disk 705 connected to the primary rotary disk 704, and the secondary rotary disk 705 is connected to the table 8. The primary rotating disk 704 is connected with a motor shaft of the deflection motor 702, the primary rotating disk 704 is connected with the secondary rotating disk 705 through a first connecting pin 706, pin holes allowing the first connecting pin 706 to penetrate through are formed in the primary rotating disk 704 and the secondary rotating disk 705, the axis of the first connecting pin 706 is parallel to the second shaft, the first connecting pin 706 is a countersunk cylindrical pin hole, and the primary rotating disk 704 and the secondary rotating disk 705 can transmit rotary motion through the arrangement of the first connecting pins 706. The primary rotary disk 704 and the secondary rotary disk 705 are both disc-shaped structures, and the primary rotary disk 704 and the secondary rotary disk 705 are coaxially arranged with a motor shaft of the displacement motor 702. The secondary rotating disk 705 is connected with the workbench 8 through a second connecting pin 803, pin holes allowing the second connecting pin 803 to penetrate through are formed in the secondary rotating disk 705 and the workbench 8, the axis of the second connecting pin 803 is parallel to a second shaft, the second connecting pin 803 is a countersunk cylindrical pin hole, the secondary rotating disk 705 and the workbench 8 can transmit rotary motion through the arrangement of the plurality of second connecting pins 803, and the secondary rotating disk 705 is located between the workbench 8 and the first rotating disk. The secondary rotating disk 705 is connected with the workbench 8 through a countersunk cylindrical pin, so that the rotary motion is transmitted to the workbench 8.
As shown in fig. 2, the rotary indexing device 7 further includes a motor rear cover 703 disposed on the indexing motor 702, the primary rotating disk 704 is disposed between the motor rear cover 703 and the secondary rotating disk 705, an oil storage tank for storing a lubricating medium is disposed on the motor rear cover 703, and the lubricating medium enters between the motor rear cover 703 and the primary rotating disk 704 to reduce the friction force between the motor rear cover 703 and the primary rotating disk 704. The primary rotating disk 704 is positioned between the secondary rotating disk 705 and the motor rear cover 703, the motor rear cover 703 is fixedly connected with the shell of the displacement motor 702, the motor rear cover 703 is of a disc-shaped structure, the motor rear cover 703 and the primary rotating disk 704 are coaxially arranged, and the diameter of the motor rear cover 703 is larger than that of the primary rotating disk 704. The deflection motor 702 is a stepless variable frequency speed regulating motor, and the first-stage rotating disk 704 also bears the pressure of other rotating mechanisms on the upper part and workpieces to be welded while transmitting power upwards, so that the conventional direct rotation can generate large friction force between the first-stage rotating disk 704 and the motor rear cover 703, so that the power transmission loss is reduced, and the power transmission precision of the stepless variable frequency speed regulating motor is influenced.
As shown in fig. 1 to 4, the first clamp 9 is connected to the table 8 by a first bolt, a plurality of first mounting holes 801 are provided in the table 8 for the first bolt to pass through, the position of the first clamp 9 on the table 8 is adjustable, and the distance between two first clamps 9 arranged opposite to each other is adjustable. The first clamps 9 are provided in plurality, the first clamps 9 are arranged in pairs, the workpiece is located between the two first clamps 9 arranged in pairs, and the two first clamps 9 arranged in pairs exert clamping force on the workpiece, so that the workpiece is fixed on the workbench 8. The table 8 has a positioning surface in contact with the workpiece, the positioning surface being a plane parallel to the first axis, the positioning surface being perpendicular to the second axis. The first mounting hole 801 is a circular hole formed in the positioning surface, and the axis of the first mounting hole 801 is parallel to the second shaft. Two first anchor clamps 9 that arrange in pairs are located the relative both ends on the length direction of workstation 8 respectively, the length direction of workstation 8 is parallel with the primary shaft, both ends on the length direction of workstation 8 all set up a plurality of first mounting holes 801, all first mounting holes 801 are the multirow and arrange, all first mounting holes 801 that are in the same row are in the same straight line that parallels with the length direction of workstation 8, all first mounting holes 801 that are in the same row are for arranging in proper order and for the equidistance along the length direction of workstation 8 and distribute, first anchor clamps 9 are installed on workstation 8 through a plurality of first bolts, each first bolt inserts respectively in one first mounting hole 801, adopt bolted connection, make things convenient for the dismouting between first anchor clamps 9 and the workstation 8, and then make things convenient for the regulation of first anchor clamps 9's position. First anchor clamps 9 have a plurality of mounted positions on workstation 8, and the distance between two first anchor clamps 9 of arranging in pairs is adjustable to be suitable for the tight fixed of the clamp of the work piece of different length size, thereby make positioner can be compatible not unidimensional work piece, improve the commonality.
As shown in fig. 1 to 4, the second clamp 10 is connected to the table 8 by a second bolt, a second mounting hole 802 through which the second bolt passes is provided in the table 8, a plurality of second mounting holes 802 are provided, and an axis of the second mounting hole 802 is parallel to the second axis. The position of the second clamp 10 on the table 8 is adjustable, and the distance between two second clamps 10 arranged opposite to each other is adjustable. The second clamps 10 are provided in plurality, the second clamps 10 are arranged in pairs, the workpiece is located between the two second clamps 10 arranged in pairs, and the two second clamps 10 arranged in pairs apply clamping force to the workpiece, so that the workpiece is fixed on the workbench 8. Two second anchor clamps 10 that arrange in pairs are located the relative both ends on the width direction of workstation 8 respectively, the width direction of workstation 8 is mutually perpendicular with primary shaft and secondary shaft, both ends on the width direction of workstation 8 all set up a plurality of second mounting holes 802, all second mounting holes 802 are the multirow and arrange, all second mounting holes 802 that are in the same row are in the collinear that parallels with the width direction of workstation 8, all second mounting holes 802 that are in the same row are for arranging in proper order and for the equidistance along the width direction of workstation 8 and distribute, second anchor clamps 10 are installed on workstation 8 through a plurality of second bolts, each second bolt inserts respectively in a second mounting hole 802, adopt bolted connection, make things convenient for the dismouting between second anchor clamps 10 and the workstation 8, and then make things convenient for the regulation of second anchor clamps 10's position. The second clamps 10 have a plurality of mounted positions on workstation 8, and the distance between two second clamps 10 that arrange in pairs is adjustable to be suitable for the clamp of the work piece of different width sizes fixed, thereby make positioner can be compatible not unidimensional work piece, improve the commonality.
Preferably, the first clamp 9 and the second clamp 10 are both hydraulic clamps and are fully automated hydraulic clamps. The structure of the hydraulic clamp is well known to those skilled in the art and will not be described herein. Two oil ports of the hydraulic clamp have different oil inlet and outlet characteristics at different stages, in the clamping stroke stage, the oil port close to the front end of the hydraulic push rod is an oil outlet, the rear oil port is an oil inlet, and in the unloading stroke stage, the oil outlet and the rear oil port are opposite; the clamping and unloading stages are completed by related control systems, so that the clamping stroke and the clamping force of the hydraulic push rod can be controlled more accurately, the time consumption of installation and positioning is greatly reduced, and the welding efficiency is obviously improved.
As shown in fig. 3 and 4, in the present embodiment, two first jigs 9 are provided, four second jigs 10 are provided, one first jig 9 is provided at each end of the table 8 in the longitudinal direction, and two second jigs 10 are provided at each end of the table 8 in the width direction.
As shown in fig. 1 to 4, the motor base 701 is located below the turning support 5, the motor base 701 is fixedly connected with the turning support 5 at a middle position in the length direction of the turning support 5, the length direction of the turning support 5 is parallel to the length direction of the workbench 8, the width direction of the turning support 5 is parallel to the width direction of the workbench 8, the workbench 8 is in a cross-shaped structure, and the workbench 8 is located above the turning support 5.
The invention also provides a workpiece welding method, which adopts the double-shaft head-tail type automatic welding positioner with the structure and comprises the following steps:
s1, fixing the outer box frame on a workbench 8 of a double-shaft head-tail automatic welding positioner, and then positioning the baffle 16 in the box body inside the outer box frame;
s2, the box outer frame is in a first horizontal posture, then the baffle 16 in the box body is welded with the bottom plate 13 of the box outer frame, and then the first reinforcing rib plate 18 is welded with the box outer frame;
s3, rotating the box outer frame by the double-shaft head-tail type automatic welding positioner to enable the box outer frame to be in a second horizontal posture, and then welding the baffle 16 in the box body with the first side plate 11 of the box outer frame;
s4, the double-shaft head-tail automatic welding positioner rotates the box outer frame to enable the box outer frame to be in a third horizontal posture, then welding the baffle 16 in the box and the second side plate 12 of the box outer frame, arranging the first side plate 11 and the second side plate 12 oppositely, and enabling the baffle 16 in the box to be located between the first side plate 11 and the second side plate 12.
As shown in fig. 5, the workpiece is a box part, the box part includes a box outer frame, and a box inner baffle 16, a first reinforcing rib plate 18 and a second reinforcing rib plate 19 connected to the box outer frame, the box outer frame is a rectangular frame structure, the box outer frame includes a bottom plate 13, and a first side plate 11, a second side plate 12, a first end plate 14 and a second end plate 15 vertically disposed on the bottom plate 13, the bottom plate 13 is a rectangular flat plate, the first side plate 11 and the second side plate 12 are oppositely disposed, the first end plate 14 and the second end plate 15 are respectively fixedly connected to two ends of the bottom plate 13 in the length direction, the first side plate 11 and the second side plate 12 are oppositely disposed, the first side plate 11 and the second side plate 12 are respectively fixedly connected to two opposite ends of the bottom plate 13 in the width direction, two ends of the first side plate 11 in the length direction are respectively fixedly connected to one end of the first end plate 14 and one end of the second end plate 15, the two ends of the second side plate 12 in the length direction are fixedly connected with the other ends of the first end plate 14 and the second end plate 15 respectively. Baffle 16 is located the interior cavity of box frame in the box, baffle 16 is located between first curb plate 11 and the second curb plate 12 in the box, baffle 16 also is located between first end plate 14 and the second end plate 15 in the box, baffle 16 is mutually perpendicular with bottom plate 13 in the box, baffle 16 sets up a plurality ofly in the box, baffle 16 arranges in proper order for the length direction along bottom plate 13 in all boxes, baffle 16 in the box, first curb plate 11, second curb plate 12, first end plate 14 and second end plate 15 are located the same one side of bottom plate 13. In the process of manufacturing box type parts, a box inner baffle 16 needs to be welded with a first side plate 11, a second side plate 12 and a bottom plate 13, a first reinforcing rib plate 18 needs to be welded with a first end plate 14, a second reinforcing rib plate 19 needs to be welded with a second end plate 15, the box inner baffle 16 is welded with the first side plate 11, the second side plate 12 and the bottom plate 13, the first reinforcing rib plate 18 is welded with the first end plate 14, and the second reinforcing rib plate 19 is welded with the second end plate 15.
In the above step S1, the box outer frame is placed on the positioning surface of the workbench 8, at this time, the workbench 8 is in a horizontal state, both the length direction and the width direction of the workbench 8 are in the horizontal direction, the positioning surface is the top surface of the workbench 8, then the box outer frame is clamped by the first clamp 9 and the second clamp 10, the two first clamps 9 arranged in pair are respectively located at two opposite ends of the box outer frame in the length direction, the two first clamps 9 arranged in pair are respectively contacted with the first end plate 14 and the second end plate 15, the two second clamps 10 arranged in pair are respectively located at two opposite ends of the box outer frame in the width direction, and the two second clamps 10 arranged in pair are respectively contacted with the first side plate 11 and the second side plate 12. After the box outer frame is fixed, all the internal baffles 16 in the box are placed in the inner cavity of the box outer frame, all the internal baffles 16 in the box are positioned between the first side plate 11 and the second side plate 12, all the internal baffles 16 in the box are also positioned between the first end plate 14 and the second end plate 15, at the moment, the internal baffles 16 in the box are in a vertical state, the internal baffles 16 in the box are parallel to the first end plate 14 and the second end plate 15, and the internal baffles 16 in the box are perpendicular to the first side plate 11 and the second side plate 12; and then, positioning the baffle 16 in the box body by using the positioning bracket, so that the baffle 16 in the box body is fixed in the inner cavity of the outer frame of the box body.
As shown in fig. 6, the positioning bracket has a first positioning groove 20 and a second positioning groove 21, the baffle 16 in the box body is a rectangular flat plate, the first positioning groove 20 and the second positioning groove 21 are used for inserting the baffle 16 in the box body, the first positioning groove 20 and the second positioning groove 21 are rectangular grooves, and the length direction of the first positioning groove 20 is perpendicular to the length direction of the second positioning groove 21. First constant head tank 20 and second constant head tank 21 all set up two, and the length direction of two first constant head tanks 20 parallels, and two second constant head tanks 21 are in same straight line, and the locating support can be fixed a position baffle 16 in two adjacent boxes simultaneously. Set up the magnet that is used for adsorbing the box frame on the locating support, fix the locating support inside the box frame through absorbent mode, make things convenient for the dismouting. In the step S1, the baffle 16 in the box is positioned by using a plurality of positioning brackets, the top of the baffle 16 in the box is embedded into one first positioning groove 20 or two second positioning grooves 21 of the positioning brackets, the bottom surface of the baffle 16 in the box is attached to the bottom plate 13, the positioning brackets are vertically placed in the inner cavity of the outer frame of the box, and the magnet is adsorbed on the bottom plate 13 of the outer frame of the box, so that the positioning brackets are fixed in the inner cavity of the outer frame of the box. Through adopting the locating support, location convenient operation is simple, avoids baffle position removal in the welding process box, helps improving welding quality.
In the above step S2, when the box outer frame is in the first horizontal posture, the length direction and the width direction of the box outer frame are both horizontal directions, the bottom plate 13 is attached to the positioning surface of the working table 8, then the welding robot 17 welds all the box inner baffles 16 and the bottom plate 13 of the box outer frame, the welding seam at the joint of the bottom plate 13 and the box inner baffles 16 is a horizontal welding seam, and after the welding of the box inner baffles 16 and the bottom plate 13 is completed, the first reinforcing rib plate 18 is welded to the first end plate 14 of the box outer frame.
In the above step S3, the turning support 5 drives the turning displacement device 7 and the box outer frame thereon to rotate 90 degrees along the first direction, so that the box outer frame is in the second horizontal posture, at this time, the width direction of the box outer frame is parallel to the second axis, the internal baffle 16 and the bottom plate 13 are in the vertical state, the second side plate 12 is located above the internal baffle 16, the first side plate 11 is located below the internal baffle 16, then all the internal baffles 16 are welded to the first side plate 11 of the box outer frame, the first side plate 11 and the second side plate 12 are in the horizontal state, and the welding seam at the joint of the first side plate 11 and the internal baffle 16 is a horizontal welding seam.
The step S4 includes:
s401, enabling the box outer frame to rotate by 90 degrees around a first shaft by the aid of a double-shaft head-tail type automatic welding positioner;
s402, rotating the outer frame of the box body by 180 degrees around a second shaft by the double-shaft head-tail automatic welding positioner;
s403, enabling the outer frame of the box body to rotate by 90 degrees around the first shaft by the double-shaft head-tail type automatic welding positioner, and enabling the outer frame of the box body to be in a third horizontal posture;
s404, welding the baffle 16 in the box body and the second side plate 12 of the box body outer frame.
In step S401, the turning bracket 5 drives the rotary displacement device 7 and the box outer frame thereon to rotate 90 degrees along the second direction, so that the box outer frame is in a horizontal state. The first direction and the second direction are opposite directions, and if the first direction is a counterclockwise direction, the second direction is a clockwise direction.
In step S402, the rotary displacement device 7 drives the box outer frame to rotate 180 degrees around the second axis, and then the second reinforcing rib plate 19 is welded to the second end plate 15 of the box outer frame.
In the step S403, after the turning support 5 drives the rotary displacement device 7 and the box outer frame thereon to rotate 90 degrees along the first direction, the box outer frame is in a third horizontal posture, at this time, the width direction of the box outer frame is parallel to the second axis, the internal baffle 16 and the bottom plate 13 are in a vertical state, the second side plate 12 is located below the internal baffle 16, and the first side plate 11 is located above the internal baffle 16.
In the step S404, all the baffles 16 in the box body and the second side plate 12 of the box body outer frame are welded, the first side plate 11 and the second side plate 12 are in a horizontal state, and the welding seam at the joint of the second side plate 12 and the baffles 16 in the box body is a horizontal welding seam.
And after welding is finished, all the positioning supports are taken out, the first clamp and the second clamp are loosened, and finally the workpiece is taken down from the workbench.
The baffle 16 is the rectangle sheet metal in the box, and the welding seam of box class part is the linear type, lets the welding seam be in horizontal gesture when guaranteeing the welding and can obtain best welding quality, so when baffle 16 and bottom plate 13 in the welding box, should guarantee that the welding seam at this moment keeps horizontal gesture to also let it keep the level when baffle 16 and two curb plates in the welding box. However, when the welding seam of the bottom plate 13 is horizontal, both side plates are in a vertical state, so that the side plates must be turned by 90 degrees after the welding of the baffle plate 16 and the bottom plate 13 in the box body is completed to be in an optimal welding position during the welding. It should be noted that, although both the two side plates of the thin plate are in the horizontal state after the box body is turned over by 90 degrees, the side plate above the side plate cannot complete the welding, the welding wire melted by the horizontal welding line above the side plate during the welding will fall down, and a stable molten pool cannot be formed, so that the welding quality is greatly reduced, and therefore, the posture of the outer frame of the box body needs to be adjusted.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (10)
1. Double-shaft-head tail type automatic welding positioner comprises a turnover support capable of being arranged around a first shaft in a rotating mode and a workbench used for placing workpieces, and is characterized by further comprising a first fixture and a second fixture, wherein the first fixture and the second fixture are arranged on the turnover support and used for driving the workbench to rotate around a second shaft and used for clamping the workpieces, the rotation displacement device is connected with the workbench, and the first shaft is perpendicular to the second shaft.
2. The dual-axis head-tail automatic welding positioner according to claim 1, wherein the rotary positioner comprises a motor base connected with the overturning bracket and a displacement motor arranged on the motor base and used for driving the workbench to rotate.
3. The dual-axis head-tail automatic welding positioner according to claim 2, wherein the rotary displacement device further comprises a primary rotating disk connected with the displacement motor and a secondary rotating disk connected with the primary rotating disk, and the secondary rotating disk is connected with the workbench.
4. The dual-shaft head-tail automatic welding positioner according to claim 3, wherein the rotary displacement device further comprises a motor rear cover arranged on the displacement motor, the primary rotating disk is positioned between the motor rear cover and the secondary rotating disk, and an oil storage tank for storing a lubricating medium is arranged on the motor rear cover.
5. The double-shaft head-tail automatic welding positioner according to any one of claims 1 to 4, wherein the first clamp is connected with the workbench through a first bolt, a first mounting hole for the first bolt to pass through is formed in the workbench, the first mounting holes are formed in a plurality of numbers, the position of the first clamp on the workbench is adjustable, and the distance between two oppositely arranged first clamps is adjustable.
6. The double-shaft head-tail automatic welding positioner according to any one of claims 1 to 5, wherein the second clamp is connected with the workbench through a second bolt, a second mounting hole for the second bolt to pass through is formed in the workbench, a plurality of second mounting holes are formed in the second clamp, the position of the second clamp on the workbench is adjustable, and the distance between two oppositely arranged second clamps is adjustable.
7. The dual-axis head-tail automatic welding positioner according to any one of claims 1 to 6, wherein the first clamp and the second clamp are both hydraulic clamps.
8. A workpiece welding method characterized by using the biaxial head-to-tail type automatic welding positioner according to any one of claims 1 to 7, and comprising the steps of:
s1, fixing the outer frame of the box body on a workbench of a double-shaft head-tail type automatic welding positioner, and then positioning the baffle in the box body inside the outer frame of the box body;
s2, the box body outer frame is in a first horizontal posture, then the baffle in the box body and the bottom plate of the box body outer frame are welded, and then the first reinforcing rib plate and the box body outer frame are welded;
s3, rotating the box outer frame by the double-shaft head-tail type automatic welding positioner to enable the box outer frame to be in a second horizontal posture, and then welding the baffle in the box body with the first side plate of the box outer frame;
s4, the double-shaft head-tail automatic welding positioner rotates the box outer frame to enable the box outer frame to be in a third horizontal posture, then welding the second side plates of the box inner baffle and the box outer frame, arranging the first side plates and the second side plates oppositely, and enabling the box inner baffle to be located between the first side plates and the second side plates.
9. The workpiece welding method according to claim 8, characterized in that said step S4 includes:
s401, enabling the box outer frame to rotate by 90 degrees around a first shaft by the aid of a double-shaft head-tail type automatic welding positioner;
s402, rotating the outer frame of the box body by 180 degrees around a second shaft by the double-shaft head-tail automatic welding positioner;
s403, enabling the outer frame of the box body to rotate by 90 degrees around the first shaft by the double-shaft head-tail type automatic welding positioner, and enabling the outer frame of the box body to be in a third horizontal posture;
s404, welding the baffle in the box body and the second side plate of the outer frame of the box body.
10. The workpiece welding method according to claim 9, wherein in step S402, the second reinforcing rib plate is welded to the outer frame of the box body.
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| CN113828992B (en) | 2023-04-14 |
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