A positioning welding device for processing steel parts of a bending machine and its use method

Abstract

The present invention provides a positioning welding device for processing steel parts of a bending machine and a method for using the same, which relates to the field of positioning welding and includes: a welding workbench, wherein the welding workbench is rotatably connected to a vertical rotating shaft, and the upper end of the vertical rotating shaft is fixedly connected to a rotating table; a centering adjustment mechanism is installed on the top of the rotating table, and the top of the rotating table is clamped with a steel plate part and a flange part through the centering adjustment mechanism. By setting up the centering adjustment mechanism, when centering the steel plate part and the flange part, there is no need for workers to manually place and adjust them one by one, which significantly reduces the operation time and labor intensity, and at the same time ensures the consistency after the adjustment, improves the positioning accuracy, and improves the quality of the finished welded parts; it solves the problem that when welding the steel plate part and the flange part of the hydraulic oil tank of the existing bending machine, the circular holes of the two need to be centered and adjusted, which currently relies on workers to manually place and adjust them one by one, which is time-consuming and labor-intensive, and has poor adjustment accuracy, affecting the quality of the finished welded parts.

Description

Technical Field

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

[0002] A press brake is a mechanical device used to bend sheet metal and is widely used in the automotive, aerospace, and home appliance industries. Steel components are an essential component of a press brake. These components come in a wide variety, covering several key areas. For example, the machine body, worktable, slide, and hydraulic tank are typically welded from high-strength steel plates.

[0003] When welding the steel plate parts (hereinafter referred to as steel plate parts) on the hydraulic oil tank of the existing bending machine 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). 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 labor-intensive when welding 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 are very troublesome to operate. Moreover, 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. Therefore, the work efficiency when welding the steel plate parts and the flange parts is greatly reduced. 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 for using the same. The device, by providing a centering adjustment mechanism, 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 operation time and labor intensity, while ensuring consistency after adjustment, improving positioning accuracy, and improving the quality of the finished welded parts. The provided clamping assembly makes the positioning welding device relatively simple both during positioning and removal operations, and is easier to operate than traditional positioning fixtures, thereby greatly improving the work efficiency when welding steel plate parts and flange parts.

[0005] ] a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a lifting mechanism, and a lifting mechanism comprises a lifting mechanism, a lifting mechanism comprises a first leg, a second leg, and a third leg, and a lifting mechanism comprises a first leg, a second leg, and a second leg, and a third leg, and a lifting mechanism comprises a first leg, a second leg, and a second leg, and a second leg, and a third leg, and a third leg, and a fourth leg, and a fourth leg, and a fifth ...

[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 outlet 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 outlet 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 on the upper end face of the welding workbench in a circular array on the inner side of the first annular baffle; a servo motor is installed on 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 and the second annular baffle, and the bristles of the two brushes are in contact with the 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-shaped clip is provided on the top surface of each T-shaped clip.

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

[0009] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

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

[0011] The cam is fixedly mounted on a support frame, and the cam is secured to the support frame by means of a pin. The cam is secured to a position detachable from the support frame by means of a pin. The cam is secured to the support frame by means of a pin.

[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 clip is engaged with the strip clip opened on the top surface of the T-shaped clip, and the width of the strip clip opened on the top surface of the T-shaped clip is greater than the width of the clip.

[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 the metal slider, and the bottom end surface of the metal slider is fixedly connected to two T-shaped slides, and the two T-shaped slides are respectively slidably connected to the two T-shaped slide grooves. The metal slider is fixedly connected to the 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 the 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 located between the spring limit block and the circular limit plate and is provided with a spring; 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 present invention discloses a method for using a positioning welding device for processing steel parts of a bending machine, comprising the following steps: first, rotating three rotating plates to a vertical state, then placing a steel plate and a flange on the upper portion of the rotating table, with the bottom end surface of the steel plate in contact with the upper end surface of the rotating table; then, manually rotating a threaded cylinder, causing a fixed column, a sliding sleeve, and four driving rods to move downward simultaneously, at which time the sliding column causes eight fixed plates and four L-shaped expansion plates to move outward simultaneously, thereby causing four upper expansion blocks and four lower expansion blocks to expand outward simultaneously, thereby adjusting the centering of the steel plate and the flange; 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, rotary table, steel plate and flange. Then, the welding robot installed on the upper part of the robot mounting seat performs a surrounding automatic 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:

[0016] First, through the centering adjustment mechanism, when centering the steel plate and flange, it is only necessary to rotate the threaded barrel 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 flange can be adjusted to 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.

[0017] 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 plate is in a horizontal state, the buckle is 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 pull frame outward to separate the buckle from the strip bayonet, making this 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 when welding steel plates and flanges.

[0018] 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, thereby greatly improving the reliability of the positioning welding device during the welding process. 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, providing a strong guarantee for the stability and consistency of welding quality.

[0019] Fourth, by fixing two brushes on the outside of the turntable, the two brushes can be rotated during the rotation of the turntable, so that the welding slag that falls between the first annular baffle and the second annular baffle 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 automated cleaning mechanism significantly reduces the frequency and difficulty of manual cleaning, and brings great convenience to subsequent cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0021] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached figure:

[0023] Figure 1 A structural diagram showing the overall structure of the present application;

[0024] Figure 2 A schematic diagram showing the structure of the present application from a bottom perspective is shown;

[0025] Figure 3 A schematic diagram showing the structure of the present application in a split state is shown;

[0026] Figure 4 A 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;

[0027] 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;

[0028] Figure 6 A schematic diagram showing the structure of the steel plate and flange of the present application in a compressed state is shown;

[0029] Figure 7 A schematic diagram showing the structure of the steel plate and flange of the present application in a centered position adjustment state is shown;

[0030] Figure 8 The figure shows the structural diagram of the steel plate and flange components after being disassembled;

[0031] Figure 9 The figure shows the structural diagram of the centering adjustment mechanism of the present application after being disassembled;

[0032] Figure 10 A schematic structural diagram of the sliding sleeve, fixed column, rotating sleeve and threaded barrel of the present application is shown;

[0033] Figure 11 A schematic structural diagram of the compression assembly of the present application is shown;

[0034] Figure 12 A schematic diagram showing the structure of the rotating plate and rectangular sliding rod of the present application in a vertical state;

[0035] Figure 13 A schematic structural diagram of the buckle, driving column and pulling member of the present application is shown;

[0036] Figure 14 A schematic diagram of the structure of the rotating plate and the metal slider after being disassembled is shown.

[0037] Reference Signs List

[0038] 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;

[0039] 2. Rotating table; 201. Vertical rotating shaft; 202. Third annular shielding plate; 203. Brush; 204. Worm gear; 205. T-shaped clamping piece;

[0040] 3. Steel plates;

[0041] 4. Flange;

[0042] 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 barrel; 5012. Fixed plate; 5013. Bevel; 5014. Sliding column; 5015. Strip slide; 5016. Strip slider; 5017. Guide groove;

[0043] 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;

[0044] 7. Pulling member; 701. Pulling frame; 702. Metal slider; 703. Spring guide rod; 704. Triangular plate; 705. Locking block; 706. Spring limit block. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments 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.

[0046] Example 1: Please refer to Figures 1 to 14 :

[0047] 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 being rotatably connected to the welding workbench 1, a rotating table 2 being fixedly connected to the upper end of the vertical rotating shaft 201, a robot mounting seat 101 being installed on the rear side of the upper end surface of the welding workbench 1, and a welding robot being installed on the upper part of the robot mounting seat 101; a centering adjustment mechanism 5 being installed on the top of the rotating table 2, and a steel plate 3 and a flange 4 being clamped to the top of the rotating table 2 through the centering adjustment mechanism 5, the centering adjustment mechanism 5 comprising a circular fixing 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 provided 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 the support column 503, and the upper end of the support column 503 is fixedly connected to the supporting circular plate 505; the upper end surface of the supporting circular plate 505 is provided with three clamping assemblies 6 in a ring array, and each clamping assembly 6 is provided with a pulling member 7 for locking and limiting the clamping assembly 6.

[0048] 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 outlet 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 outlet 104 on the bottom end surface of the welding workbench 1, and a material bucket is placed on the ground directly below the slag guide pipe 105; the upper end surface of the welding workbench 1 is located on the inner side of the first annular baffle plate 102 and is installed with four rollers 108 in a circular array 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.

[0049] Two brushes 203 are fixedly connected to the outside 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 an annular array at the edge of the upper end surface of the rotating table 2, and a strip-shaped clip is provided on the top surface of each T-shaped clip 205. By fixing the two brushes 203 on the outside 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 fall into the material bucket through the slag guide pipe 105, thereby realizing automatic collection and cleaning of the welding slag.

[0050] A third annular baffle plate 202 is fixedly connected to the edge of the bottom end surface of the turntable 2, and the third annular baffle plate 202 is located outside the first annular baffle plate 102; a worm gear 204 engaged 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 turntable 2, thereby further improving the convenience of subsequent cleaning work.

[0051] 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, a bevel 5013, a sliding column 5014, a strip slide 5015 and a strip slider 5016. The sliding sleeve 504 is slidably connected to the outer lower side of the support column 503. The lower side of the outer circumference of the support column 503 is provided with four strip slides 5015 in an annular array. The inner circumference of the sliding sleeve 504 is provided with four strip slides. 5015 are slidably connected to four strip-shaped sliders 5016; the outer circumference of the sliding sleeve 504 is fixedly connected to four driving rods 506 in an annular array, and each driving rod 506 is fixedly connected to a sliding column 5014; each L-shaped expansion plate 502 is fixedly connected to a lower expansion block 507 and an upper expansion block 508 on the outer side, the upper expansion block 508 is used to center the circular hole on the flange 4, and the lower expansion block 507 is used to center the circular hole on the steel plate 3; the top of the sliding sleeve 504 is fixed to the outer circumference of the sliding sleeve 504. The four fixed columns 509 are fixedly connected to a rotating sleeve 5010, and the upper end of the rotating sleeve 5010 is rotatably connected to a 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 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 screw thread 5011 is rotated to rotate. 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 to the center, and there is no need for workers to manually place and adjust them one by one, which significantly reduces the operation time and labor intensity, while ensuring the consistency after adjustment, and greatly improving the positioning accuracy.

[0052] The pressing assembly 6 includes a rotating plate 601, a rectangular slide 602, a rectangular slide 603, a rectangular slide 604, a buckle 605, a driving column 606, a triangular prism 607, a magnet block 608 and a T-shaped slide 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. The bottom of the rotating plate 601 is rotatably connected to the rectangular slide 602 through a rotating shaft. The lower side of the outer side of the rectangular slide 602 is slidably connected to the rectangular slide 603. The inner side of the rectangular slide 603 is provided with a spring at the lower end of the rectangular slide 602. Two rectangular slides 604 are provided on the outer side of the upper end surface of the rotating plate 601. Each rectangular slide 60 4 is slidably connected to a buckle 605 inside, a spring is installed inside each rectangular sliding mouth 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 part 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 welded part, the operation is also very simple, which greatly improves the working efficiency when welding the steel plate 3 and the flange 4.

[0053] 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.

[0054] Example 2, based on Example 1, Figure 6 、 Figure 13 and Figure 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 to the metal slider 702, and the bottom end surface of the metal slider 702 is fixedly connected to two T-shaped slides. A handle is welded on the outer side of the pulling frame 701. The two T-shaped slides are slidably connected to the two T-shaped slide grooves 609 respectively. 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 slidably connected to the outside of the spring limit block 706. The spring limit block 706 is slidably connected to the outside of the spring limit block 706. 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 faces of the two triangular plates 704 are aligned with the upper end faces 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.

[0055] The present invention discloses a method for using a positioning welding device for processing steel parts of a bending machine, comprising the following steps: first, rotating three rotating plates 601 to a vertical state, then placing a steel plate 3 and a flange 4 on the upper part of a rotating table 2, with the bottom end surface of the steel plate 3 in contact with the upper end surface of the rotating table 2; then, manually rotating a threaded cylinder 5011, causing a fixed column 509, a sliding sleeve 504, and four driving rods 506 to move downward simultaneously, at which time the sliding column 5014 causes eight fixed plates 5012 and four L-shaped expansion plates 502 to move outward simultaneously, thereby causing four upper expansion blocks 508 and four lower expansion blocks 507 to expand outward simultaneously, thereby adjusting the centering of the steel plate 3 and the flange 4; 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, turntable 2, steel plate 3 and flange 4, and then the welding robot installed on the upper part of the robot mounting seat 101 performs a circumferential 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.

[0056] 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 by 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 contacts the upper end surface of the rotating table 2, and the steel plate 3 and the rotating table 2 are both located outside the center adjustment mechanism 5, and then manually rotate the threaded barrel 5011, and the threaded barrel 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 the center. 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 part;

[0057] After adjustment, the three rotating plates 601 are rotated outwards in sequence by hand. When rotating, one hand holds the handle on the pull frame 701 and pulls it outwards. At this time, the locking block 705 moves forward from between the two clips 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 clips 605 on the rotating plate 601 are engaged with the strip clips opened 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 engaging with the strip-shaped bayonet opening on the top surface of the T-shaped clamping member 205, the user releases his hand from the handle on the pulling frame 701. At this time, the circular limiting plate on the spring guide rod 703, under the action of the spring force outside 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, so that the locking block 705 is located between the two clips 605, effectively limiting the two clips 605. This makes the pressing assembly 6 more secure when pressing the steel plate 3 and the flange 4, thereby greatly improving the reliability of the tack welding device during the welding process.

[0058] Next, the servo motor 106 is started through the external controller, and the servo motor 106 rotates with the worm 107, the worm wheel 204, the vertical shaft 201, the turntable 2, the steel plate 3 and the flange 4, and 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 shielding plate 102 and the second annular shielding plate 103.

[0059] When the steel plate 3 and the flange 4 are welded, and 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, and move 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 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 slide bar 602 will also be in a vertical state under the action of gravity, and the metal slider 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, 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 part 4, and the lower expansion blocks 507 are separated from the circular holes on the steel plate part 3. Then, the welded steel plate part 3 and the flange part 4 can be removed upward, so that the positioning welding device is relatively simple both during positioning operation and during disassembly operation.

[0060] In this article, there are several points to note:

[0061] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0062] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0063] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection 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); it is characterized in that 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 disk (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 of the upper end surface of the rotating table (2), the outer peripheral surface of the circular fixed disk (501) is provided with four guide grooves (5017), each guide groove (5017) is slidably connected to an L-shaped expansion support plate (502), the upper end surface of the circular fixed disk (501) is fixedly connected to a support column (503), and the upper end of the support column (503) is fixedly connected to the supporting circular plate (505); the upper end surface of the supporting circular plate (505) is provided with three clamping assemblies (6) in an annular array, and each clamping assembly (6) is provided with a pulling member (7); 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-shaped clip is provided on the top surface of each T-shaped clip (205); The pressing assembly (6) includes a rotating plate (601), a rectangular slide bar (602), a rectangular slide cylinder (603), a rectangular slide mouth (604), a buckle (605), a driving column (606), a triangular prism (607), a magnet block (608) and a T-shaped slide groove (609), wherein the rotating plate (601) is rotatably connected to the outer side of the top of the supporting circular plate (505) via a rotating shaft, and the bottom of the rotating plate (601) is rotatably connected to the rectangular slide bar (602) via a rotating shaft, and the outer lower side of the rectangular slide bar (602) is slidably connected to the rectangular slide cylinder (603), and the interior of the rectangular slide cylinder (603) is located on the rectangular slide bar (602). The lower ends are all provided 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 provided 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 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); the upper end surface of the rotating plate (601) is provided with two T-shaped sliding grooves (609); 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 engaged 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).

2. The positioning welding device for processing steel parts of a bending machine according to claim 1 is characterized in that: The front side of the upper end of the welding workbench (1) is fixedly connected to a first annular baffle (102) and a second annular baffle (103); the upper end of the welding workbench (1) is located between the first annular baffle (102) and the second annular baffle (103) and is provided with a slag outlet (104); the bottom of the welding workbench (1) is located below the slag outlet (104) and is externally provided with a slag guide pipe (105); a material bucket is placed on the ground directly below the slag guide pipe (105); the upper end of the welding workbench (1) is located inside the first annular baffle (102) and is provided with four rollers (108) in an annular array; 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).

3. The positioning welding device for processing steel parts of a bending machine according to claim 2, characterized in that: Two brushes (203) are fixedly connected to the outside 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).

4. The positioning welding device for processing steel parts of a bending machine according to claim 2, 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, characterized in that: The centering adjustment mechanism (5) further comprises 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), wherein the sliding sleeve (504) is slidably connected to the outer lower side of the support column (503), and four strip slides (5015) are provided on the lower side of the outer circumference of the support column (503) in an annular array shape, and four strip sliders (5016) are slidably connected to the four strip slides (5015) on the inner circumference of the sliding sleeve (504); the outer circumference of the sliding sleeve (504) is fixedly connected to the four driving rods (506) in an annular array shape, and Each driving rod (506) is fixedly connected to a sliding column (5014); the outer side surface of each L-shaped expansion plate (502) is fixedly connected to a lower expansion block (507) and an upper expansion 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), and the threaded cylinder (5011) is connected to the upper side of the outer peripheral surface of the support column (503) through a thread; each L-shaped expansion 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, characterized in that: When the threaded barrel (5011) is in a clockwise rotation state, the threaded barrel (5011) moves downward simultaneously with the rotating sleeve (5010), the fixed column (509), the sliding sleeve (504) and the four driving rods (506), and at this time, the sliding column (5014) moves outward simultaneously with the eight fixed plates (5012) and the four L-shaped expansion plates (502).

7. The positioning welding device for processing steel parts of a bending machine according to claim 1, characterized in that: 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 to the metal slider (702). The bottom end surface of the metal slider (702) is fixedly connected to two T-shaped slides, and the two T-shaped slides are slidably connected to two T-shaped slots (609) respectively. 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 rod (703) is externally slidably connected to 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 located between the spring limit block (706) and the circular limit plate; the pulling frame (701) is internally fixedly connected to 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 buckles (605); when the pulling member (7) is in a non-pulling state, the locking block (705) is located between the two buckles (605).

8. The method for using the positioning welding device for processing steel parts of a bending machine according to claim 5, 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 (3) and the flange (4) on the upper part of the rotating table (2), with the bottom end surface of the steel plate (3) in contact with the upper end surface of the rotating table (2); 2) Then, by manually rotating the threaded cylinder (5011), the fixed column (509), the sliding sleeve (504) and the four driving rods (506) are simultaneously moved downwards. At this time, the sliding column (5014) simultaneously moves outwards with the eight fixed plates (5012) and the four L-shaped expansion plates (502), thereby simultaneously expanding the four upper expansion blocks (508) and the four lower expansion blocks (507) outwards, thereby adjusting the centering of the steel plate (3) and the flange (4); 3) After adjustment, manually rotate the three rotating plates (601) outward in sequence, and place the lower end of the rectangular slide (603) 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 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) rotates with the worm (107), the worm wheel (204), the vertical shaft (201), the rotary table (2), the steel plate (3) and the flange (4), 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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