Positioning and welding device for bending machine steel part machining and using method of positioning and welding device

Abstract

The invention provides a positioning welding device for bending machine steel part machining and a using method thereof, and relates to the field of positioning welding, the positioning welding device comprises a welding workbench, the welding workbench is rotatably connected with a vertical rotating shaft, and the upper end of the vertical rotating shaft is fixedly connected with a rotating table; a centering position adjusting mechanism is mounted at the top of the rotating table, and a steel plate piece and a flange piece are clamped to the top of the rotating table through the centering position adjusting mechanism. Through the arranged centering position adjusting mechanism, when centering position adjusting is carried out on a steel plate piece and a flange piece, workers do not need to manually place and adjust the position one by one, the operation time and the labor intensity are obviously reduced, meanwhile, the consistency after position adjusting is ensured, the positioning precision is improved, and the quality of a finished welding piece is improved; the problems that when a steel plate piece and a flange piece of an existing bending machine hydraulic oil tank are welded, round holes of the steel plate piece and the flange piece need to be adjusted in the middle, manual one-by-one placement and position adjustment are mostly relied on at present, time and labor are consumed, the adjusting precision is poor, and the quality of finished welding pieces is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of positioning welding, and in particular to a positioning welding device for processing steel parts of a bending machine and a use method thereof. Background Art

[0002] A bending machine is a mechanical device used to bend metal sheets and is widely used in the fields of automobile manufacturing, aerospace, and home appliance manufacturing. The steel parts of a bending machine are an important part of the bending machine. There are many types of steel parts for bending machines, covering multiple key parts, such as: the fuselage, workbench, slide, hydraulic oil tank, etc. are generally welded from high-strength steel plates.

[0003] When the steel plate parts (hereinafter referred to as steel plate parts) on the hydraulic oil tank of the existing bending machine are welded with the flange parts, it is necessary to adjust the circular holes on the steel plate parts and the circular holes on the flange parts to be centered (concentric), and the existing centering adjustment method is mostly for workers to manually place and adjust them one by one, which makes the steel plate parts time-consuming and laborious when being aligned with the flange parts, and the adjustment accuracy is poor, affecting the quality of the finished welded parts. In addition, during the welding process, a large number of positioning fixtures are used, and the positioning fixtures are mostly screw-type, which is very troublesome to operate. After the steel plate parts and the flange parts are welded, the threaded rods on the positioning fixtures need to be rotated one by one to remove the steel plate parts and the flange parts, thereby greatly reducing the work efficiency when welding the steel plate parts and the flange parts. Summary of the invention

[0004] The disclosed embodiments relate to a positioning welding device for processing steel parts of a bending machine and a method of using the same. By providing a centering adjustment mechanism, the device can center and adjust the steel plate parts and flange parts without the need for workers to manually arrange and adjust them one by one, thereby significantly reducing the operation time and labor intensity, while ensuring the consistency after adjustment, improving the positioning accuracy, and improving the quality of the finished welded parts. By providing a clamping assembly, the positioning welding device is relatively simple both in positioning operation and in removal operation, and is easier to operate than traditional positioning fixtures, thereby greatly improving the work efficiency when welding steel plate parts and flange parts.

[0005] In a first aspect of the present disclosure, a positioning welding device for processing steel parts of a bending machine and a method for using the same are provided, which specifically include: a welding workbench, the welding workbench is rotatably connected to a vertical rotating shaft, the upper end of the vertical rotating shaft is fixedly connected to a rotating table, a robot mounting seat is installed on the rear side of the upper end surface of the welding workbench, and a welding robot is installed on the upper part of the robot mounting seat; a centering adjustment mechanism is installed on the top of the rotating table, and a steel plate and a flange are clamped on the top of the rotating table through the centering adjustment mechanism, the centering adjustment mechanism includes a circular fixed disk, an L-shaped expansion support plate, a support column, a support circular plate and a guide groove, the circular fixed disk is fixedly connected to the middle part of the upper end surface of the rotating table, four guide grooves are opened on the outer circumferential surface of the circular fixed disk, and an L-shaped expansion support plate is slidably connected inside each guide groove, the upper end surface of the circular fixed disk is fixedly connected to a support column, and the upper end of the support column is fixedly connected to a support circular plate; three clamping assemblies are arranged in a ring array on the upper end surface of the support circular plate, and a pulling member is arranged on each clamping assembly.

[0006] In at least some embodiments, a first annular baffle plate and a second annular baffle plate are fixedly connected to the front side of the upper end face of the welding workbench, and a slag leakage port is provided on the upper end face of the welding workbench between the first annular baffle plate and the second annular baffle plate; a slag guide pipe is installed on the outside of the lower side of the slag leakage port on the bottom end face of the welding workbench, and a material bucket is placed on the ground directly below the slag guide pipe; four rollers are installed in a circular array on the upper end face of the welding workbench inside the first annular baffle plate; a servo motor is installed at the bottom of the welding workbench, and a worm is fixedly connected to the rotating shaft of the servo motor.

[0007] In at least some embodiments, two brushes are fixedly connected to the outer side of the rotating table through two L-shaped fixing frames, and the two brushes are located between the first annular baffle plate and the second annular baffle plate, and the bristles of the two brushes are in contact with the upper end surface of the welding workbench; three T-shaped clips are fixedly connected in a circular array at the edge of the upper end surface of the rotating table, and a strip clip is provided on the top surface of each T-shaped clip.

[0008] In at least some embodiments, a third annular baffle plate is fixedly connected to the edge of the bottom end surface of the rotating table, and the third annular baffle plate is located outside the first annular baffle plate; a worm wheel meshing with the worm is fixedly connected to the lower end of the vertical rotating shaft.

[0009] The cam is provided with a plurality of sliding plates, each of which is provided with a plurality of sliding plates, each of which is provided with a plurality of sliding plates, each of which is provided with a plurality of sliding plates.

[0010] In at least some embodiments, when the threaded barrel is in a clockwise rotation state, the threaded barrel moves downward with the rotating sleeve, the fixed column, the sliding sleeve and the four driving rods at the same time, and at this time the sliding column moves outward with the eight fixed plates and the four L-shaped expansion plates at the same time.

[0011] In at least some embodiments, the clamping assembly includes a rotating plate, a rectangular sliding rod, a rectangular sliding cylinder, a rectangular sliding mouth, a buckle, a driving column, a triangular prism, a magnet block and a T-shaped sliding groove. The rotating plate is rotatably connected to the outer side of the top of the supporting circular plate through a rotating shaft, and the bottom of the rotating plate is rotatably connected to the rectangular sliding rod through a rotating shaft, and the lower side of the outer side of the rectangular sliding rod is slidably connected to the rectangular sliding cylinder, and springs are installed inside the rectangular sliding cylinder at the lower end of the rectangular sliding rod; two rectangular sliding mouths are provided on the outer side of the upper end surface of the rotating plate, and a buckle is slidably connected inside each rectangular sliding mouth, and a spring is installed inside each rectangular sliding mouth, and a driving column is rotatably connected to the upper end of each buckle; the triangular prism is fixedly connected to the middle part of the upper end surface of the supporting circular plate, and a magnet block is fixedly connected to three end surfaces around the triangular prism; two T-shaped sliding grooves are provided on the upper end surface of the rotating plate.

[0012] In at least some embodiments, when the three clamping assemblies are in a clamping state, the lower ends of the three rectangular slides are in close contact with the upper surface of the flange, and at this time the buckle is clamped with the strip bayonet opened on the top surface of the T-shaped clamp, and the width of the strip bayonet opened on the top surface of the T-shaped clamp is greater than the width of the buckle.

[0013] In at least some embodiments, the pulling member includes a pulling frame, a metal slider, a spring guide rod, a triangular plate, a locking block and a spring limit block. The pulling frame is fixedly connected to a metal slider, and two T-shaped slide bars are fixedly connected to the bottom end surface of the metal slider, and the two T-shaped slide bars are respectively slidably connected to two T-shaped slide grooves. The metal slider is fixedly connected to a spring guide rod, and a circular limit plate is provided at the other end of the spring guide rod. The outside of the spring guide rod is slidably connected to a spring limit block, and the spring limit block is fixedly connected to the top of the rotating plate. The outside of the spring guide rod is provided with a spring between the spring limit block and the circular limit plate; the inside of the pulling frame is fixedly connected to two triangular plates and a locking block, and the bottom end surfaces of the two triangular plates are aligned with the upper end surface of the buckle; when the pulling member is in a non-pulling state, the locking block is located between the two buckles.

[0014] The invention discloses a method for using a positioning welding device for processing steel parts of a bending machine, comprising the following steps: firstly, three rotating plates are rotated to a vertical state, and then a steel plate part and a flange part are placed on the upper part of a rotating table, and the bottom end surface of the steel plate part contacts the upper end surface of the rotating table; then, a threaded cylinder is manually rotated to move downward with a fixed column, a sliding sleeve and four driving rods at the same time, and at this time, the sliding column moves outward with eight fixed plates and four L-shaped expansion plates at the same time, thereby expanding outward with four upper expansion blocks and four lower expansion blocks at the same time, and adjusting the steel plate part and the flange part in the center; After adjustment, the three rotating plates are manually rotated outward in turn, and the lower end of the rectangular slide is placed on the upper surface of the flange. When the rotating plate is in a horizontal state, the buckle is engaged with the strip bayonet, and the rectangular slide is now tightly pressed against the upper surface of the flange. Next, the servo motor is started through the external controller, and the servo motor rotates the worm, worm gear, vertical shaft, rotating table, steel plate and flange. Then, the welding robot installed on the upper part of the robot mounting seat performs a surrounding automated welding operation on the steel plate and flange, thereby completing the steps of the welding operation of the positioning welding device.

[0015] The present invention provides a positioning welding device for processing steel parts of a bending machine and a method for using the same, which has the following beneficial effects: First, by setting up a centering adjustment mechanism, when centering the steel plate and the flange, it is only necessary to rotate the threaded cylinder to drive the four upper expansion blocks and the four lower expansion blocks to expand outward at the same time, so that the steel plate and the flange can be adjusted in the center. Since workers do not need to manually place and adjust them one by one, the operation time and labor intensity are significantly reduced, while ensuring the consistency after adjustment, and greatly improving the positioning accuracy. This efficient and precise adjustment mechanism not only improves the efficiency of welding operations, but also significantly improves the quality of finished welded parts, reduces the defective rate, and provides a strong guarantee for the optimization of the overall welding process and the improvement of product quality.

[0016] Secondly, by setting up the clamping assembly, when performing the fixing operation on the steel plate and the flange, it is only necessary to manually rotate the three rotating plates outward in turn and place the lower end of the rectangular slide on the upper surface of the flange. When the rotating plates are in a horizontal state, the buckles are engaged with the strip bayonet to achieve rapid positioning. When the clamping assembly is separated from the welded part, it is only necessary to pull the pulling frame outward to separate the buckles from the strip bayonet, making the positioning welding device relatively simple both during positioning and removal operations. Compared with traditional positioning fixtures, it is easier to operate, thereby greatly improving the work efficiency during welding of steel plates and flanges.

[0017] Third, by providing a pulling piece, after the buckle is engaged with the strip bayonet, the handle on the pulling frame can be released, and the locking block will be driven between the two buckles to effectively limit the two buckles, so that the clamping assembly is more secure when clamping the steel plate and flange parts. Therefore, the reliability of the positioning welding device during the welding process is greatly improved. This automatic locking function also reduces the need for manual intervention, further simplifies the operating process, and improves work efficiency. Through this design, the clamping assembly can apply pressure more evenly to avoid loosening or deviation due to external force or vibration, thereby providing a strong guarantee for the stability and consistency of welding quality.

[0018] Fourth, by fixing two brushes on the outer side of the turntable, the two brushes can rotate during the rotation of the turntable, so that the welding slag dropped between the first annular baffle plate and the second annular baffle plate during welding can be swept into the slag leakage port, and finally falls into the material bucket through the slag guide pipe, thereby realizing automatic collection and cleaning of welding slag. This automatic cleaning mechanism significantly reduces the frequency and difficulty of manual cleaning, and brings great convenience to subsequent cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture: Figure 1 A structural diagram showing the overall structure of the present application; Figure 2 A schematic diagram showing the structure of the present application from a bottom perspective is shown; Figure 3 A schematic diagram of the structure of the present application in a split state is shown; Figure 4A schematic diagram of the structure of the welding workbench, the first annular shielding plate, the second annular shielding plate and the slag leakage port from a top view of the present application is shown; Figure 5 A schematic diagram of a partial cross-section of the first annular shielding plate, the rotating platform and the third annular shielding plate of the present application is shown; Figure 6 A schematic diagram showing the structure of the steel plate and flange of the present application in a compressed state; Figure 7 A schematic diagram showing the structure of the steel plate and flange of the present application in a centered adjustment state; Figure 8 The schematic diagram of the structure after the steel plate and flange parts of the present application are separated is shown; Fig. 9 The schematic diagram of the structure of the centering adjustment mechanism of the present application after being disassembled is shown; Fig.10 The schematic diagram of the structure of the sliding sleeve, the fixed column, the rotating sleeve and the threaded cylinder of the present application is shown; Fig.11 A schematic structural diagram of the clamping assembly of the present application is shown; Fig.12 A schematic diagram showing the structure of the rotating plate and the rectangular sliding rod of the present application in a vertical state; Fig.13 A schematic diagram showing the structure of the buckle, driving column and pulling member of the present application is shown; Fig.14 A schematic diagram of the structure of the rotating plate and the metal slider after being disassembled is shown.

[0022] Reference numerals list 1. Welding workbench; 101. Robot mounting base; 102. First annular shielding plate; 103. Second annular shielding plate; 104. Slag outlet; 105. Slag guide pipe; 106. Servo motor; 107. Worm; 108. Roller; 2. Rotating table; 201. Vertical rotating shaft; 202. Third annular shielding plate; 203. Brush; 204. Worm gear; 205. T-shaped clamping piece; 3. Steel plate parts; 4. Flange; 5. Centering adjustment mechanism; 501. Circular fixed plate; 502. L-shaped expansion plate; 503. Support column; 504. Sliding sleeve; 505. Support circular plate; 506. Driving rod; 507. Lower expansion block; 508. Upper expansion block; 509. Fixed column; 5010. Rotating sleeve; 5011. Threaded cylinder; 5012. Fixed plate; 5013. Oblique mouth; 5014. Sliding column; 5015. Strip slide groove; 5016. Strip slider; 5017. Guide groove; 6. Clamping assembly; 601. Rotating plate; 602. Rectangular slide bar; 603. Rectangular slide cylinder; 604. Rectangular slide opening; 605. Buckle; 606. Driving column; 607. Triangular prism; 608. Magnet block; 609. T-shaped slide groove; 7. Pulling piece; 701. Pulling frame; 702. Metal slider; 703. Spring guide rod; 704. Triangular plate; 705. Locking block; 706. Spring limit block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1 to 14 : The present invention proposes a positioning welding device for processing steel parts of a bending machine and a method for using the same, comprising: a welding workbench 1, a vertical rotating shaft 201 is rotatably connected to the welding workbench 1, a rotating table 2 is fixedly connected to the upper end of the vertical rotating shaft 201, a robot mounting seat 101 is installed on the rear side of the upper end surface of the welding workbench 1, and a welding robot is installed on the upper part of the robot mounting seat 101; a centering adjustment mechanism 5 is installed on the top of the rotating table 2, and a steel plate 3 and a flange 4 are clamped on the top of the rotating table 2 through the centering adjustment mechanism 5, and the centering adjustment mechanism 5 includes a circular fixed plate 501, an L-shaped expansion support plate 502, and a support column 503, a supporting circular plate 505 and a guide groove 5017, the circular fixed disk 501 is fixedly connected to the middle part of the upper end surface of the rotating table 2, four guide grooves 5017 are opened on the outer circumference of the circular fixed disk 501, and an L-shaped expansion support plate 502 is slidably connected inside each guide groove 5017, the upper end surface of the circular fixed disk 501 is fixedly connected to a supporting column 503, and the upper end of the supporting column 503 is fixedly connected to a supporting circular plate 505; three clamping assemblies 6 are arranged in a ring array on the upper end surface of the supporting circular plate 505, and each clamping assembly 6 is provided with a pulling member 7 for locking and limiting the clamping assembly 6.

[0025] A first annular baffle plate 102 and a second annular baffle plate 103 are fixedly connected to the front side of the upper end surface of the welding workbench 1, and a slag leakage port 104 is provided on the upper end surface of the welding workbench 1 between the first annular baffle plate 102 and the second annular baffle plate 103; a slag guide pipe 105 is installed on the outside of the lower side of the slag leakage port 104 on the bottom end surface of the welding workbench 1, and a material barrel is placed on the ground directly below the slag guide pipe 105; four rollers 108 are installed in a circular array on the upper end surface of the welding workbench 1 on the inner side of the first annular baffle plate 102 to improve the stability of the rotating table 2 during rotation; a servo motor 106 is installed at the bottom of the welding workbench 1, and a worm 107 is fixedly connected to the rotating shaft of the servo motor 106.

[0026] Two brushes 203 are fixedly connected to the outer side of the rotating table 2 through two L-shaped fixing frames, and the two brushes 203 are both located between the first annular baffle plate 102 and the second annular baffle plate 103, and the bristles of the two brushes 203 are in contact with the upper end surface of the welding workbench 1; three T-shaped clips 205 are fixedly connected in a circular array at the edge of the upper end surface of the rotating table 2, and a strip clip is provided on the top surface of each T-shaped clip 205. By fixing the two brushes 203 on the outer side of the rotating table 2, the two brushes 203 can be rotated during the rotation of the rotating table 2, so that the welding slag dropped between the first annular baffle plate 102 and the second annular baffle plate 103 during the welding process can be swept into the slag leakage port 104, and finally falls into the material bucket through the slag guide pipe 105, thereby realizing the automatic collection and cleaning of the welding slag.

[0027] A third annular baffle plate 202 is fixedly connected to the edge of the bottom end surface of the rotating table 2, and the third annular baffle plate 202 is located outside the first annular baffle plate 102; a worm gear 204 meshing with the worm 107 is fixedly connected to the lower end of the vertical rotating shaft 201. Through the cooperation between the third annular baffle plate 202 and the first annular baffle plate 102, welding slag can be prevented from falling to the bottom of the rotating table 2, thereby further improving the convenience of subsequent cleaning work.

[0028] The centering adjustment mechanism 5 also includes a sliding sleeve 504, a driving rod 506, a lower expansion block 507, an upper expansion block 508, a fixed column 509, a rotating sleeve 5010, a threaded cylinder 5011, a fixed plate 5012, an oblique opening 5013, a sliding column 5014, a strip slide 5015 and a strip slider 5016. The sliding sleeve 504 is slidably connected to the lower side of the outer side of the support column 503. The lower side of the outer peripheral surface of the support column 503 is provided with four strip slides 5015 in an annular array. The inner peripheral surface of the sliding sleeve 504 is provided with four strip slides 5015. The outer circumference of the sliding sleeve 504 is fixedly connected with four driving rods 506 in an annular array, and each driving rod 506 is fixedly connected with a sliding column 5014; the outer side of each L-shaped expansion support plate 502 is fixedly connected with a lower expansion support block 507 and an upper expansion support block 508, the upper expansion support block 508 is used to adjust the center of the circular hole on the flange 4, and the lower expansion support block 507 is used to adjust the center of the circular hole on the steel plate 3; the top of the sliding sleeve 504 is fixedly connected with four driving rods 506 in an annular array, and each driving rod 506 is fixedly connected with a sliding column 5014; each L-shaped expansion support plate 502 is fixedly connected with a lower expansion support block 507 and an upper expansion support block 508 on the outer side, the upper expansion support block 508 is used to adjust the center of the circular hole on the flange 4, and the lower expansion support block 507 is used to adjust the center of the circular hole on the steel plate 3; The rotating sleeve 5010 is fixedly connected to the four fixed columns 509, and the upper end of the rotating sleeve 5010 is rotatably connected to the threaded cylinder 5011, and the threaded cylinder 5011 is connected to the upper side of the outer circumference of the support column 503 through a thread; each L-shaped expansion support plate 502 is fixedly connected to two fixed plates 5012, and each fixed plate 5012 is provided with an oblique opening 5013; each driving rod 506 is fixedly connected to a sliding column 5014, and the sliding column 5014 is slidably connected to the oblique opening 5013; when the threaded cylinder 5011 is in the clockwise direction, the sliding column 5014 is in the clockwise direction, and ... When the needle is in the rotating state, the threaded cylinder 5011 moves downward with the rotating sleeve 5010, the fixed column 509, the sliding sleeve 504 and the four driving rods 506 at the same time, and at this time the sliding column 5014 moves outward with the eight fixed plates 5012 and the four L-shaped expansion plates 502 at the same time; through the setting of the centering adjustment mechanism 5, the steel plate part 3 and the flange part 4 are adjusted in the center, and there is no need for workers to manually arrange and adjust them one by one, which significantly reduces the operation time and labor intensity, and at the same time ensures the consistency after adjustment, greatly improving the positioning accuracy.

[0029] The clamping assembly 6 includes a rotating plate 601, a rectangular slide bar 602, a rectangular slide cylinder 603, a rectangular sliding opening 604, a buckle 605, a driving column 606, a triangular prism 607, a magnet block 608 and a T-shaped slide groove 609. The rotating plate 601 is rotatably connected to the outer side of the top of the supporting circular plate 505 through a rotating shaft, and the bottom of the rotating plate 601 is rotatably connected to the rectangular slide bar 602 through a rotating shaft. The lower side of the outer side of the rectangular slide bar 602 is slidably connected to the rectangular slide cylinder 603, and the inner side of the rectangular slide cylinder 603 is provided with a spring at the lower end of the rectangular slide bar 602; two rectangular sliding openings 604 are provided on the outer side of the upper end surface of the rotating plate 601, and each rectangular sliding opening 60 4 is slidably connected with a buckle 605 inside, a spring is installed inside each rectangular sliding opening 604, and a driving column 606 is rotatably connected to the upper end of each buckle 605; the triangular prism 607 is fixedly connected to the middle of the upper end surface of the supporting circular plate 505, and a magnet block 608 is fixedly connected to the three end surfaces of the triangular prism 607; two T-shaped sliding grooves 609 are provided on the upper end surface of the rotating plate 601; through the setting of the clamping assembly 6, the steel plate 3 and the flange 4 can be quickly fixed, and when the clamping assembly 6 is separated from the welding part, the operation is also very simple, which greatly improves the working efficiency of welding the steel plate 3 and the flange 4.

[0030] When the three clamping components 6 are in the clamping state, the lower ends of the three rectangular slides 603 are in close contact with the upper surface of the flange 4, and at this time, the buckle 605 is clamped with the strip bayonet opened on the top surface of the T-shaped clamp 205, and the width of the strip bayonet opened on the top surface of the T-shaped clamp 205 is greater than the width of the buckle 605.

[0031] Embodiment 2, based on embodiment 1, as Figure 6 , Fig.13 and Fig.14As shown, the pulling member 7 includes a pulling frame 701, a metal slider 702, a spring guide rod 703, a triangular plate 704, a locking block 705 and a spring limit block 706. The pulling frame 701 is fixedly connected with the metal slider 702, and the bottom end surface of the metal slider 702 is fixedly connected with two T-shaped slide bars. A handle is welded on the outer side of the pulling frame 701. The two T-shaped slide bars are slidably connected with two T-shaped slide grooves 609 respectively. The metal slider 702 is fixedly connected with the spring guide rod 703, and the other end of the spring guide rod 703 is provided with a circular limit plate. The spring guide rod 703 is externally slidably connected with a spring limit block 706. The spring limit block 706 is slidably connected with the outside of the spring guide rod 703. 06 is fixedly connected to the top of the rotating plate 601, and a spring is sleeved on the outside of the spring guide rod 703 between the spring limit block 706 and the circular limit plate; two triangular plates 704 and a locking block 705 are fixedly connected to the inside of the pulling frame 701, and the bottom end surfaces of the two triangular plates 704 are aligned with the upper end surfaces of the buckles 605; when the pulling member 7 is in a non-pulling state, the locking block 705 is located between the two buckles 605; through the setting of the pulling member 7, the two buckles 605 can be automatically limited, which improves the reliability of the positioning welding device during the welding process and provides a strong guarantee for the stability and consistency of the welding quality.

[0032] The present invention discloses a method for using a positioning welding device for processing steel parts of a bending machine, comprising the following steps: firstly, three rotating plates 601 are rotated to a vertical state, and then a steel plate member 3 and a flange member 4 are placed on the upper part of a rotating table 2, and the bottom end surface of the steel plate member 3 is in contact with the upper end surface of the rotating table 2; then, by manually rotating a threaded cylinder 5011, a fixed column 509, a sliding sleeve 504 and four driving rods 506 are simultaneously moved downward, and at this time, the sliding column 5014 simultaneously moves outward with eight fixed plates 5012 and four L-shaped expansion plates 502, thereby simultaneously expanding outward with four upper expansion blocks 508 and four lower expansion blocks 507, and adjusting the steel plate member 3 and the flange member 4 in the center; After adjustment, the three rotating plates 601 are manually rotated outward in turn, and the lower end of the rectangular slide 603 is placed on the upper surface of the flange 4. When the rotating plate 601 is in a horizontal state, the buckle 605 is engaged with the strip bayonet, and the rectangular slide 603 is now tightly pressed against the upper surface of the flange 4. Next, the servo motor 106 is started through the external controller, and the servo motor 106 rotates with the worm 107, worm gear 204, vertical shaft 201, rotating table 2, steel plate 3 and flange 4. Then, the welding robot installed on the upper part of the robot mounting seat 101 performs a surrounding automated welding operation on the steel plate 3 and the flange 4, thereby completing the steps of the positioning welding device performing the welding operation.

[0033] The working principle of this embodiment is as follows: when in use, first rotate the three rotating plates 601 to a vertical state, at which time the rectangular slide bar 602 will also be in a vertical state under the action of gravity, and then the metal slider 702 will be magnetically attracted to the corresponding magnet block 608, so that the rotating plate 601 in the vertical state is limited, and then the steel plate 3 and the flange 4 are placed on the upper part of the rotating table 2, and the bottom end surface of the steel plate 3 is in contact with the upper end surface of the rotating table 2, and the steel plate 3 and the rotating table 2 are both located outside the centering adjustment mechanism 5, and then the threaded cylinder 5011 is manually rotated, and the threaded cylinder 5011 carries the rotating sleeve 5010 under the action of the thread. , the fixed column 509, the sliding sleeve 504 and the four driving rods 506 move downward at the same time, and then the sliding column 5014 moves outward with the eight fixed plates 5012 and the four L-shaped expansion plates 502 at the same time, thereby expanding the four upper expansion blocks 508 and the four lower expansion blocks 507 outward at the same time, so that the circular hole of the steel plate 3 and the circular hole on the flange 4 are adjusted to be centered. During the adjustment process, since there is no need for workers to manually place and adjust the position, it is more time-saving and labor-saving when the steel plate 3 is aligned with the flange 4, and the consistency after adjustment is better, thereby effectively improving the positioning accuracy and significantly improving the quality of the finished welded parts; After adjustment, the three rotating plates 601 are manually rotated outward in sequence. During rotation, one hand holds the handle on the pull frame 701 and pulls it outward. At this time, the locking block 705 moves forward from between the two buckles 605. The other hand holds the rectangular slide 603 and places the lower end of the rectangular slide 603 on the upper surface of the flange 4. Then, when the rotating plate 601 is in a horizontal state, the two buckles 605 on the rotating plate 601 are both engaged with the strip bayonet openings on the top surface of the corresponding T-shaped clip 205. At this time, the rectangular slide 603 is tightly pressed against the upper surface of the flange 4 under the action of its internal spring. After the strip-shaped bayonet opening on the top surface of the T-shaped bayonet 205 is engaged, the hand is released from the handle on the pulling frame 701. At this time, the circular limiting plate on the spring guide rod 703 moves forward with the spring guide rod 703, the metal slider 702, the pulling frame 701 and the locking block 705 under the action of the spring elastic force outside the spring guide rod 703, so that the locking block 705 is located between the two buckles 605, and the two buckles 605 are effectively limited, so that the clamping assembly 6 is more secure when clamping the steel plate member 3 and the flange member 4, thereby greatly improving the reliability of the positioning welding device during the welding process.

[0034] Next, the servo motor 106 is started through the external controller, and the servo motor 106 drives the worm 107, the worm wheel 204, the vertical shaft 201, the turntable 2, the steel plate 3 and the flange 4 to rotate. Then, the welding robot installed on the upper part of the robot mounting seat 101 performs a surrounding automated welding operation on the steel plate 3 and the flange 4. The welding slag generated during the welding process will fall between the first annular baffle plate 102 and the second annular baffle plate 103.

[0035] When the steel plate 3 and the flange 4 are welded, when the steel plate 3 and the flange 4 need to be removed from the rotating table 2, it is only necessary to pull the pulling frame 701 outward, moving the locking block 705 and the two triangular plates 704 outward. Under the action of the oblique edges of the two triangular plates 704, the two driving columns 606 are forced to move in opposite directions with the two buckles 605 at the same time, so that the two buckles 605 are separated from the strip-shaped bayonet openings opened on the top surface of the T-shaped clamping piece 205. Then, the rotating plate 601 is rotated upward by ninety degrees so that the rotating plate 601 is in a vertical state. At this time, the rectangular sliding bar 602 will also be in a vertical state under the action of gravity, and at this time, the metal sliding block 702 is magnetically attracted to the corresponding magnet block 608, so that the rotating plate 601 in the vertical state To obtain the limiting effect, the threaded cylinder 5011 is then rotated in the opposite direction. Under the action of the thread, the threaded cylinder 5011 moves upward with the rotating sleeve 5010, the fixed column 509, the sliding sleeve 504 and the four driving rods 506 at the same time. Then, at this time, the sliding column 5014 moves inward with the eight fixed plates 5012 and the four L-shaped expansion plates 502 at the same time, thereby moving the four upper expansion blocks 508 and the four lower expansion blocks 507 inward at the same time, so that the four upper expansion blocks 508 are separated from the circular holes on the flange 4, and the lower expansion blocks 507 are separated from the circular holes on the steel plate 3. Then the welded steel plate 3 and flange 4 can be removed upwards, so that the positioning welding device is relatively simple both when performing positioning operations and when performing disassembly operations.

[0036] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0038] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A positioning welding device for processing steel parts of a bending machine, comprising: A welding workbench (1), wherein a vertical rotating shaft (201) is rotatably connected to the welding workbench (1), a rotating table (2) is fixedly connected to the upper end of the vertical rotating shaft (201), a robot mounting seat (101) is installed on the rear side of the upper end surface of the welding workbench (1), and a welding robot is installed on the upper part of the robot mounting seat (101); characterized in that a centering adjustment mechanism (5) is installed on the top of the rotating table (2), and a steel plate member (3) and a flange member (4) are clamped on the top of the rotating table (2) through the centering adjustment mechanism (5), and the centering adjustment mechanism (5) comprises a circular fixed plate (501), an L-shaped expansion support plate (502), and a support column (503). , a supporting circular plate (505) and a guide groove (5017), the circular fixed disk (501) being fixedly connected to the middle of the upper end surface of the rotating table (2), the outer circumferential surface of the circular fixed disk (501) being provided with four guide grooves (5017), each guide groove (5017) being slidably connected to an L-shaped expansion support plate (502), the upper end surface of the circular fixed disk (501) being fixedly connected to a supporting column (503), the upper end of the supporting column (503) being fixedly connected to a supporting circular plate (505); the upper end surface of the supporting circular plate (505) being provided with three clamping assemblies (6) in a ring array, and each clamping assembly (6) being provided with a pulling member (7).

2. The positioning welding device for processing steel parts of a bending machine according to claim 1 is characterized in that: A first annular baffle plate (102) and a second annular baffle plate (103) are fixedly connected to the front side of the upper end face of the welding workbench (1); a slag outlet (104) is provided on the upper end face of the welding workbench (1) between the first annular baffle plate (102) and the second annular baffle plate (103); a slag guide pipe (105) is installed on the lower side of the slag outlet (104) on the lower end face of the welding workbench (1); a material bucket is placed on the ground directly below the slag guide pipe (105); four rollers (108) are installed in an annular array on the upper end face of the welding workbench (1) on the inner side of the first annular baffle plate (102); a servo motor (106) is installed on the bottom of the welding workbench (1), and a worm (107) is fixedly connected to the rotating shaft of the servo motor (106).

3. The positioning welding device for processing steel parts of a bending machine according to claim 2 is characterized in that: Two brushes (203) are fixedly connected to the outer side of the rotating table (2) via two L-shaped fixing frames, and the two brushes (203) are both located between the first annular shielding plate (102) and the second annular shielding plate (103), and the bristles of the two brushes (203) are in contact with the upper end surface of the welding workbench (1); three T-shaped clamping parts (205) are fixedly connected in an annular array at the edge of the upper end surface of the rotating table (2), and a strip-shaped clamping opening is provided on the top surface of each T-shaped clamping part (205).

4. The positioning welding device for processing steel parts of a bending machine according to claim 2 is characterized in that: A third annular shielding plate (202) is fixedly connected to the edge of the bottom end surface of the rotating platform (2), and the third annular shielding plate (202) is located outside the first annular shielding plate (102); and a worm wheel (204) meshing with the worm (107) is fixedly connected to the lower end of the vertical rotating shaft (201).

5. The positioning welding device for processing steel parts of a bending machine according to claim 1 is characterized in that: The centering adjustment mechanism (5) further comprises a sliding sleeve (504), a driving rod (506), a lower expansion support block (507), an upper expansion support block (508), a fixed column (509), a rotating sleeve (5010), a threaded cylinder (5011), a fixed plate (5012), an oblique opening (5013), a sliding column (5014), a strip slide groove (5015) and a strip slider (5016); the sliding sleeve (504) is slidably connected to the lower side of the outer side of the support column (503); four strip slide grooves (5015) are provided on the lower side of the outer peripheral surface of the support column (503) in the shape of an annular array; four strip sliders (5016) are slidably connected to the four strip slide grooves (5015) on the inner peripheral surface of the sliding sleeve (504); the outer peripheral surface of the sliding sleeve (504) is fixedly connected to the four driving rods (506) in the shape of an annular array, and Each driving rod (506) is fixedly connected to a sliding column (5014); the outer side surface of each L-shaped expansion support plate (502) is fixedly connected to a lower expansion support block (507) and an upper expansion support block (508); the top of the sliding sleeve (504) is fixedly connected to a rotating sleeve (5010) through four fixed columns (509); the upper end of the rotating sleeve (5010) is rotatably connected to a threaded cylinder (5011); the threaded cylinder (5011) is connected to the upper side of the outer circumference of the support column (503) through a thread; each L-shaped expansion support plate (502) is fixedly connected to two fixed plates (5012), and each fixed plate (5012) is provided with an oblique opening (5013); each driving rod (506) is fixedly connected to a sliding column (5014), and the sliding column (5014) is slidably connected to the oblique opening (5013).

6. The positioning welding device for processing steel parts of a bending machine according to claim 5 is characterized in that: When the threaded cylinder (5011) is in a clockwise rotation state, the threaded cylinder (5011) moves downward with the rotating sleeve (5010), the fixed column (509), the sliding sleeve (504) and the four driving rods (506) at the same time, and at this time, the sliding column (5014) moves outward with the eight fixed plates (5012) and the four L-shaped expansion plates (502) at the same time.

7. The positioning welding device for processing steel parts of a bending machine according to claim 3 is characterized in that: The clamping assembly (6) comprises a rotating plate (601), a rectangular sliding rod (602), a rectangular sliding cylinder (603), a rectangular sliding mouth (604), a buckle (605), a driving column (606), a triangular prism (607), a magnet block (608) and a T-shaped sliding groove (609); the rotating plate (601) is rotatably connected to the outer side of the top of the supporting circular plate (505) via a rotating shaft; the bottom of the rotating plate (601) is rotatably connected to the rectangular sliding rod (602) via a rotating shaft; the lower side of the outer side of the rectangular sliding rod (602) is slidably connected to the rectangular sliding cylinder (603); the inside of the rectangular sliding cylinder (603) is located on the rectangular sliding rod (602); The lower ends are all equipped with springs; the outer side of the upper end surface of the rotating plate (601) is provided with two rectangular sliding openings (604), each rectangular sliding opening (604) is slidably connected to a buckle (605) inside, each rectangular sliding opening (604) is equipped with a spring, and the upper end of each buckle (605) is rotatably connected to a driving column (606); the triangular prism (607) is fixedly connected to the middle part of the upper end surface of the supporting circular plate (505), and a magnet block (608) is fixedly connected to three end surfaces of the triangular prism (607); the upper end surface of the rotating plate (601) is provided with two T-shaped sliding grooves (609).

8. The positioning welding device for processing steel parts of a bending machine according to claim 7 is characterized in that: When the three clamping assemblies (6) are in a clamping state, the lower ends of the three rectangular slides (603) are in close contact with the upper surface of the flange (4), and at this time, the buckle (605) is clamped with the strip-shaped bayonet opening opened on the top surface of the T-shaped clamping member (205), and the width of the strip-shaped bayonet opening opened on the top surface of the T-shaped clamping member (205) is greater than the width of the buckle (605).

9. The positioning welding device for processing steel parts of a bending machine according to claim 7 is characterized in that: The pulling member (7) comprises a pulling frame (701), a metal slider (702), a spring guide rod (703), a triangular plate (704), a locking block (705) and a spring limit block (706); the pulling frame (701) is fixedly connected to the metal slider (702); two T-shaped slide bars are fixedly connected to the bottom end surface of the metal slider (702); the two T-shaped slide bars are respectively slidably connected to two T-shaped slide grooves (609); the metal slider (702) is fixedly connected to the spring guide rod (703); the other end of the spring guide rod (703) is provided with a circular limit plate; the spring guide rod (703) is externally slidably connected with a spring limit block (706), which is fixedly connected to the top of the rotating plate (601), and the spring guide rod (703) is externally provided with a spring sleeved between the spring limit block (706) and the circular limit plate; the pulling frame (701) is internally fixedly connected with two triangular plates (704) and a locking block (705), and the bottom end surfaces of the two triangular plates (704) are aligned with the upper end surfaces of the buckle (605); when the pulling member (7) is in a non-pulling state, the locking block (705) is located between the two buckles (605).

10. The method for using the positioning welding device for processing steel parts of a bending machine according to claim 1, characterized in that: The following steps are involved: 1) First, rotate the three rotating plates (601) to a vertical state, and then place the steel plate member (3) and the flange member (4) on the upper part of the rotating table (2), with the bottom end surface of the steel plate member (3) in contact with the upper end surface of the rotating table (2); 2) Then, the threaded cylinder (5011) is manually rotated to move the fixed column (509), the sliding sleeve (504) and the four driving rods (506) downward at the same time. At this time, the sliding column (5014) moves the eight fixed plates (5012) and the four L-shaped expansion plates (502) outward at the same time, thereby expanding the four upper expansion blocks (508) and the four lower expansion blocks (507) outward at the same time, and adjusting the steel plate (3) and the flange (4) in the center; 3) After adjustment, the three rotating plates (601) are rotated outwards in sequence manually, and the lower end of the rectangular slide cylinder (603) is placed on the upper surface of the flange (4). When the rotating plate (601) is in a horizontal state, the buckle (605) is engaged with the strip bayonet, and the rectangular slide cylinder (603) is tightly pressed against the upper surface of the flange (4); 4) Next, the servo motor (106) is started by the peripheral controller, and the servo motor (106) drives the worm (107), the worm wheel (204), the vertical shaft (201), the rotating table (2), the steel plate (3) and the flange (4) to rotate, and then the welding robot installed on the upper part of the robot mounting seat (101) performs a surrounding automatic welding operation on the steel plate (3) and the flange (4), thereby completing the steps of the positioning welding device performing the welding operation.

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