A welding device for processing tower crane mechanical arm

Abstract

The invention discloses a tower crane mechanical arm processing welding equipment, and the invention relates to the tower crane mechanical arm welding technical field. The tower crane mechanical arm processing welding equipment comprises a processing table, a slide seat slidably connected to the processing table, and a welding gun arranged on the slide seat, the upper end surface of the processing table is symmetrically and fixedly connected with a U-shaped placement seat for placing the mechanical arm main beam, the upper part of the processing table is installed with a transverse moving part, and a C-shaped slide is installed on the transverse moving part, and a fixed point mechanism for locking the C-shaped slide at the main beam welding point is commonly arranged between the left and right two placement cylinders and the C-shaped slide, and the original scattered operations are integrated into a complete process through the mechanism of mutual linkage of the tilting mechanism, the tightening mechanism and the fixed point mechanism in the present invention, so that all preparations can be completed by starting once, which greatly simplifies the welding steps, thereby facilitating the continuous welding processing of multiple auxiliary beam groups.

Description

Technical Field

[0001] The invention relates to the technical field of tower crane mechanical arm welding, in particular to welding equipment for processing tower crane mechanical arms. Background Art

[0002] Tower crane is a kind of lifting equipment widely used in construction sites and large engineering projects. Its structure usually includes a vertical tower body, a horizontal mechanical arm and a slewing mechanism. With its efficient lifting and moving ability, tower crane can lift heavy objects at high altitudes and is widely used in construction, bridges, tunnels and other projects. The mechanical arm of tower crane is its core component, which is responsible for lifting and moving various heavy objects. The mechanical arm of tower crane is usually composed of multiple main beams and multiple sub-beam groups evenly distributed on each main beam. Each group of sub-beams includes a vertical rod and two symmetrically inclined V-shaped diagonal rods on both sides of the vertical rod. These sub-beam groups are connected to the main beam to provide additional support and enhance the overall rigidity of the main beam to cope with the huge load and torque generated when heavy objects are moved. Welding is crucial in the processing of the mechanical arm. The main beam and sub-beam components are connected together by welding to form the whole of the mechanical arm.

[0003] When welding the main beam and the auxiliary beam in the existing robotic arm, the welding of each group of auxiliary beams requires gradually adjusting the angle of each auxiliary beam rod, positioning and clamping the vertical rod and the two oblique rods respectively, and at the same time, the auxiliary beam needs to be tightly pressed against the main beam to ensure the firmness of the welding. For the welding of multiple groups of continuous auxiliary beams, each group needs to be adjusted and welded separately, so that after each group of auxiliary beams is completed, the equipment must be moved to the next welding point and the same operation must be restarted, which reduces the welding efficiency.

[0004] Since each step of adjusting the inclination angle, pressing the sub-beam rod against the main beam and finally clamping and limiting the position during the welding process of each sub-beam rod needs to be completed independently by manual or equipment, this step-by-step operation means that the welding of each set of sub-beam rods cannot be completed in one go and must be processed in stages, resulting in the entire welding process being fragmented and complicated, the work pace being slowed down, and the overall welding efficiency being reduced. Summary of the invention

[0005] The present invention provides a welding device for processing a tower crane mechanical arm, which solves the problem that when welding a main beam and a sub-beam group in an existing mechanical arm, the welding of each group of sub-beams needs to gradually adjust the angle of each sub-beam rod, and respectively position and clamp the sub-beam vertical rod and the sub-beam diagonal rod, and at the same time touch the main beam to ensure the firmness of the welding. For the continuous welding of multiple groups of sub-beams, each group needs to be adjusted and welded separately, and the welding equipment must move to the next welding point to repeat the same operation after completing one group, resulting in frequent preparation, scattered operations, and complicated welding process. Technical problems.

[0006] The present invention provides a tower crane mechanical arm processing welding equipment, comprising a processing table, a slide seat slidably connected to the processing table and a welding gun arranged on the slide seat, the upper end surface of the processing table is symmetrically fixedly connected with a U-shaped placement seat for placing the mechanical arm main beam, a transverse movement portion is installed on the upper part of the processing table, and a C-shaped slide is installed on the transverse movement portion, the upper end surface of the C-shaped slide is slidably provided with a support platform, the upper end surface of the support platform is symmetrically fixedly connected with a support ear, the upper end surface of the support platform is symmetrically fixedly connected with a support ear, and the support ear is rotatably connected with a rotating shaft, and the rear ends of the two rotating shafts and the middle of the upper end surface of the support platform are respectively fixedly connected with a placement tube for placing the mechanical arm auxiliary beam rod, the upper end surface of the support platform is symmetrically slidably connected with an electric slider, a tightening mechanism for pushing the auxiliary beam rod placed in the placement tube to tightly touch the main beam is jointly arranged between the electric slider and the placement tube, a tilting mechanism for adjusting the inclination angle of the left and right placement tubes is jointly arranged between the electric slider and the rotating shaft, and a fixed point mechanism for locking the C-shaped slide at the welding point of the main beam is jointly arranged between the left and right placement tubes and the C-shaped slide.

[0007] In a possible implementation, the tilting mechanism includes an L-shaped slide plate, a transverse seat, a gear ring, a rack and a distance limiting component. The upper end surfaces of the two electric sliders are respectively fixedly connected with the L-shaped slide plates, the transverse seat sliding sleeve is arranged on the transverse section of the L-shaped slide plate, a limit spring is commonly fixedly connected between the transverse seat and the L-shaped slide plate, the outside of the rotating shaft is fixedly connected with a gear ring, the lower end surface of the transverse seat is fixedly connected with a rack meshing with the upper part of the gear ring, and a distance limiting component for limiting the transverse travel distance of the transverse seat is commonly arranged between the two transverse seats and the support platform.

[0008] In one possible implementation, the clamping mechanism includes a bar-shaped through groove opened on the front part of the placing cylinder, a sliding bar slidably connected in the bar-shaped through groove, a C-shaped frame fixedly connected to the rear end of the sliding bar, two inclined lead-in plates symmetrically hinged on the lower end surface of the C-shaped frame through a rotating column and a torsion spring, a top contact block fixedly connected to the lower part of the inclined lead-in plate, and a sliding frame slidably sleeved on the outside of the sliding bar, a pulling component for pulling the C-shaped frame downward at a spacing so that the top contact block abuts against the upper part of the auxiliary beam rod and pushes the auxiliary beam rod downward, a No. 1 spring is fixedly connected between the bar-shaped through groove and the sliding bar, and a No. 2 spring is fixedly connected between the sliding frame and the sliding bar.

[0009] In a possible implementation, the transverse movement portion includes a transverse guide groove opened on the end surface of the processing table, a guide block is slidably connected in the transverse guide groove, a connecting telescopic rod is fixedly connected to the upper end surface of the guide block, and the C-shaped slide is fixedly connected to the upper end of the connecting telescopic rod.

[0010] In a possible implementation, the fixed-point mechanism includes two sliding grooves symmetrically opened on the vertical section of the C-shaped slide and a sliding frame slidably connected to the sliding grooves, the rear end face of the sliding frame is fixedly connected with a brake plate, the upper cavity wall of the C-shaped slide is provided with an embedding groove matching the brake plate, the front end faces of the left and right placing tubes are fixedly connected with an axle rod, a bidirectional spring telescopic rod is hinged between the two axles, the front end face of the sliding frame is fixedly connected with a sliding rod, the outside of the sliding rod is slidably connected with a slip ring, a connecting strip is fixedly connected to the middle of the outer wall of the bidirectional spring telescopic rod, and a spring telescopic top rod is fixedly connected between the connecting strip and the slip ring.

[0011] In a possible implementation, a plurality of slots are equidistantly formed on the upper and lower cavity walls of the C-shaped slide, and a guide wheel rotates in each of the slots.

[0012] In one possible implementation, the distance limiting assembly includes a strip groove opened on the upper end surface of the horizontal seat, an L-shaped limiting plate slidably connected to the strip groove, a support rod fixedly connected to the middle part of the upper end surface of the support platform, and a bidirectional screw rotatably connected to the support rod, and a connecting ear is fixedly connected to the lower end surface of the transverse section of the L-shaped limiting plate, and the connecting ear is threadedly connected to the bidirectional screw.

[0013] In a possible implementation, the rear end surfaces of the two front and rear wall panels of the placement cylinder are equidistantly connected to a plurality of lug groups, the lug groups are fixedly connected to a connecting shaft, and a limit stop bar is hinged on the connecting shaft via a torsion spring.

[0014] In one possible implementation, the pulling assembly includes a No. 1 cable, a No. 1 guide column, a No. 2 guide column, a pulley and a No. 2 cable. The lower portions of the left and right sliding frames are fixedly connected to the No. 1 cable, and the front end surfaces of the left and right placement cylinders are rotatably connected to the No. 1 guide column. The lower end of the No. 1 cable passes through the outside of the No. 1 guide column and is fixedly connected to the electric slider. The front end surface of the placement cylinder in the middle is symmetrically rotatably connected to the No. 2 guide column. The lower end surface of the sliding frame in the middle is fixedly connected to a fixing bar, and the front end surface of the fixing bar is rotatably connected to a pulley. The upper end surfaces of the two electric sliders are commonly fixedly connected to the No. 2 cable, and the middle section of the No. 2 cable passes through the outside of the two No. 2 guide columns and is slidably mounted on the outside of the pulley.

[0015] In a possible implementation, two slide rail plates are symmetrically fixedly connected to the upper portion of the C-shaped slide, a guide groove group is provided on the upper surface of the slide rail plate, and a sliding block slidably arranged in the guide groove group is fixedly connected to the lower end surface of the support platform.

[0016] It can be seen from the above technical solutions that the present invention has the following advantages:

[0017] In the present invention, the tilting angle of the two oblique sub-beams can be quickly adjusted according to the required angle through the tilting mechanism, without the need to independently adjust the angle and position each time, thereby reducing the preparation time for welding each group of sub-beams. At the same time, the tilting mechanism can also be linked with the tightening mechanism to contact the end of the sub-beam rod placed in the placing tube, so that the end of the sub-beam rod that contacts the main beam automatically and tightly contacts the main beam, ensuring the stability and firmness of the welding position.

[0018] In the present invention, the C-shaped slide is temporarily locked at the welding point of the main beam by adjusting the angle of the tilting mechanism and then interacting with the fixed-point mechanism, ensuring that the auxiliary beam rod is always stable during the welding process, avoiding the auxiliary beam rod from shaking or deflecting and affecting the welding quality, thereby improving the firmness of the welding.

[0019] In the present invention, the angle adjustment and tightening of the auxiliary beam rod and the positioning and locking of the C-shaped slide are synchronously completed through the mechanism of mutual linkage of the tilting mechanism, the tightening mechanism and the fixed-point mechanism, and the originally scattered operations are integrated into a complete process, so that all preparations can be completed by starting once, which greatly simplifies the welding steps and facilitates the continuous welding processing of multiple auxiliary beam groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of the welding equipment for machining the mechanical arm of a tower crane provided by the present invention.

[0022] Figure 2 This is a schematic diagram from a front view of the connection structure of the C-shaped slide and the placement tube provided by the present invention.

[0023] Figure 3 The present invention provides Figure 2 Schematic diagram of the enlarged structure of part A in FIG.

[0024] Figure 4 This is a schematic diagram of the rear view structure of the C-shaped slide and placement tube connection structure provided by the present invention.

[0025] Figure 5 This is a schematic diagram of the installation structure of the tightening mechanism, tilting mechanism and fixed-point mechanism provided by the present invention.

[0026] Figure 6 The present invention provides Figure 5 Schematic diagram of the enlarged structure of part B.

[0027] Figure 7 This is a schematic cross-sectional view of a partial structure of the tightening mechanism provided by the present invention.

[0028] Figure 8 This is a schematic diagram of the installation structure of the fixed-point mechanism provided by the present invention.

[0029] Fig. 9 This is a partial structural schematic diagram of the operating object provided by the present invention.

[0030] The above drawings include the following reference numerals:

[0031] 1. Processing table; 2. Slide seat; 3. Welding gun; 4. U-shaped placement seat; 5. Transverse moving part; 51. Transverse guide groove; 52. Guide block; 53. Connecting telescopic rod; 6. C-shaped slide; 7. Clamping mechanism; 71. Bar through groove; 72. Sliding bar; 73. C-shaped frame; 74. Oblique introduction plate; 75. Top contact block; 76. Sliding frame; 77. Pulling assembly; 771. No. 1 cable; 772. No. 1 guide column; 773. No. 2 guide column; 774. Pulley; 775. No. 2 cable; 78. No. 1 spring; 79. No. 2 spring; 8. Inclined mechanism; 81. L-shaped slide plate; 82 , horizontal seat; 83, gear ring; 84, rack; 85, distance limit assembly; 851, strip groove; 852, L-shaped limit plate; 853, support rod; 854, bidirectional screw; 855, connecting ear; 86, limit spring; 9, fixed point mechanism; 91, sliding groove; 92, sliding frame; 93, brake plate; 94, shaft; 95, bidirectional spring telescopic rod; 96, sliding rod; 97, slip ring; 98, spring telescopic top rod; 10, support platform; 11, rotating shaft; 12, placing cylinder; 13, electric slider; 14, guide wheel; 15, limit stop strip; 16, slide rail plate; 17, guide groove group. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1 and Figure 2The present invention provides a technical solution: a tower crane mechanical arm processing welding equipment, comprising a processing table 1, a slide 2 slidably connected to the processing table 1 and a welding gun 3 arranged on the slide 2, the upper end surface of the processing table 1 is symmetrically fixedly connected with a U-shaped placement seat 4 for placing the main beam of the mechanical arm, a transverse moving part 5 is installed on the upper part of the processing table 1, a C-shaped slide 6 is installed on the transverse moving part 5, a support platform 10 is slidably arranged on the upper end surface of the C-shaped slide 6, two slide rail plates 16 are symmetrically fixedly connected to the upper part of the C-shaped slide 6, a guide groove group 17 is opened on the upper end surface of the slide rail plate 16, a sliding block slidably arranged in the guide groove group 17 is fixedly connected to the lower end surface of the support platform 10, and the upper end surface of the support platform 10 is symmetrically fixedly connected to the upper end surface of the guide rail plate 16. A support ear is fixedly connected to the support ear, and a rotating shaft 11 is rotatably connected to the support ear. A placement cylinder 12 for placing the auxiliary beam rod of the robotic arm is fixedly connected to the rear ends of the two rotating shafts 11 and the middle of the upper end surface of the support platform 10 respectively. An electric slider 13 is symmetrically slidably connected to the upper end surface of the support platform 10. A tightening mechanism 7 for pushing the auxiliary beam rod placed in the placement cylinder 12 to tightly touch the main beam is commonly provided between the electric slider 13 and the placement cylinder 12. A tilting mechanism 8 for adjusting the inclination angle of the left and right placement cylinders 12 is commonly provided between the electric slider 13 and the rotating shaft 11. A fixed-point mechanism 9 for locking the C-shaped slide 6 at the welding point of the main beam is commonly provided between the left and right placement cylinders 12 and the C-shaped slide 6.

[0034] See also Figure 1 and Figure 4 In this embodiment, a plurality of slots are equidistantly provided on the upper and lower cavity walls of the C-shaped slide 6, a guide wheel 14 is rotated in each slot, and the transverse moving portion 5 includes a transverse guide groove 51 provided on the upper end surface of the processing table 1, a guide block 52 is slidably connected in the transverse guide groove 51, a connecting telescopic rod 53 is fixedly connected to the upper end surface of the guide block 52, and the C-shaped slide 6 is fixedly connected to the upper end of the connecting telescopic rod 53.

[0035] When the robot arm is performing welding work, first pull the C-shaped slide 6 upwards, then place the main beam into the U-shaped placement seat 4, then push the main beam forward so that the C-shaped slide 6 is mounted on the outside of the main beam, and then the connection point between the auxiliary beam rod and the main beam can be manually pushed to move the C-shaped slide 6 horizontally on the main beam as needed. The C-shaped slide 6 drives the guide wheel 14 to move on the main beam until the C-shaped slide 6 moves to the welding point, and then manually push the support platform 10 to move backward, and the support platform 10 drives the sliding block to move in the guide groove group 17 until the support plate drives the placement cylinder 12 to move directly above the welding point, and then the auxiliary beam rod is placed in the placement cylinder 12 one by one.

[0036] See also Figure 5 and Figure 6In this embodiment, the tilting mechanism 8 includes an L-shaped slide 81, a transverse seat 82, a gear ring 83, a rack 84 and a distance limiting component 85. The upper end surfaces of the two electric sliders 13 are respectively fixedly connected with the L-shaped slide 81, the transverse seat 82 is slidably sleeved on the transverse section of the L-shaped slide 81, and a limit spring 86 is fixedly connected between the transverse seat 82 and the L-shaped slide 81. The outer part of the rotating shaft 11 is fixedly connected with the gear ring 83, and the lower end surface of the transverse seat 82 is fixedly connected with a rack 84 meshing with the upper part of the gear ring 83. A distance limiting component 85 for limiting the lateral travel distance of the transverse seat 82 is commonly arranged between the two transverse seats 82 and the support platform 10.

[0037] See also Figure 6 The distance limiting assembly 85 includes a strip groove 851 opened on the upper end surface of the horizontal seat 82, an L-shaped limiting plate 852 slidably connected in the strip groove 851, a support rod 853 fixedly connected to the middle part of the upper end surface of the support platform 10, and a bidirectional screw 854 rotatably connected to the support rod 853. A connecting ear 855 is fixedly connected to the lower end surface of the transverse section of the L-shaped limiting plate 852, and the connecting ear 855 is threadedly connected to the bidirectional screw 854.

[0038] After the auxiliary beam rod is placed in the placement cylinder 12, the inclination angles of the left and right placement cylinders 12 are adjusted according to the inclination angles of the two oblique rods in the auxiliary beam group, so that the inclination angles of the left and right placement cylinders 12 are consistent with the inclination angles of the two oblique rods in the required auxiliary beam group, and the two-way screw rod 854 is driven to rotate manually or by an external rotating device, and the two-way screw rod 854 then drives the connecting ear 855 to move toward each other, and the connecting ear 855 then drives the L-shaped limit plate 852 to move, so that the distance between the two L-shaped plates can be adjusted, and then the distance of the rack 84 movement stroke can be adjusted, and then the two electric sliders 1 are controlled 3 move synchronously in the direction away from each other, the electric slider 13 drives the transverse seat 82 to move through the L-shaped slide plate 81 and the limit spring 86, the transverse seat 82 then drives the rack 84 to move, the rack 84 then drives the ring gear 83 to rotate, the ring gear 83 then drives the placement tube 12 to rotate through the rotating shaft 11, after the placement tube 12 rotates to the desired angle, the transverse seat 82 drives the groove wall of the strip groove 851 close to the support rod 853 to collide with the L-shaped limit plate 852, and then the transverse seat 82 stops moving, so that the left and right placement tubes 12 can stay at the desired angle.

[0039] See also Figure 2 ,, Figure 3 , Figure 4 and Figure 7In this embodiment, the rear end surfaces of the two front and rear wall panels of the placement cylinder 12 are equidistantly connected to a plurality of lug groups, and a connecting shaft is fixedly connected to the lug group. A limit stop bar 15 is hinged on the connecting shaft through a torsion spring. The initial position of the limit stop bar 15 is parallel to the front wall panel of the placement cylinder 12. The limit stop bar 15 is used to block the auxiliary beam rod when it is placed in the placement cylinder 12 and moves downward to prevent the auxiliary beam rod from tilting and escaping from the opening at the rear of the placement cylinder 12. The tightening mechanism 7 includes a strip-shaped through groove 71 opened on the front of the placement cylinder 12, a sliding bar 72 slidably connected to the strip through groove 71, a C-shaped frame 73 fixedly connected to the rear end of the sliding bar 72, and two rotating columns symmetrically hinged on the C-shaped frame with a torsion spring. The inclined introduction plate 74 on the lower end surface of 73, the top contact block 75 fixedly connected to the lower part of the inclined introduction plate 74 and the sliding frame 76 slidably sleeved on the outside of the sliding bar 72, the rotating column is fixedly connected to the lower end surface of the C-shaped frame 73 through a protrusion, the inclined introduction plate 74 is rotatably connected to the outside of the rotating column, and a torsion spring is fixedly connected between the rotating column and the inclined introduction plate 74, and a pulling component 77 is provided between the electric slider 13 and the sliding frame 76 for pulling the C-shaped frame 73 downward at a distance so that the top contact block 75 contacts the upper part of the auxiliary beam rod and pushes the auxiliary beam rod downward, a No. 1 spring 78 is fixedly connected between the bar-shaped through groove 71 and the sliding bar 72, and a No. 2 spring 79 is fixedly connected between the sliding frame 76 and the sliding bar 72.

[0040] See also Figure 2 , Figure 3 and Figure 5 The pulling assembly 77 includes a No. 1 cable 771, a No. 1 guide column 772, a No. 2 guide column 773, a pulley 774 and a No. 2 cable 775. The lower parts of the left and right sliding frames 76 are fixedly connected to the No. 1 cable 771. The front ends of the left and right placement cylinders 12 are rotatably connected to the No. 1 guide column 772. The lower end of the No. 1 cable 771 passes through the outside of the No. 1 guide column 772 and is fixedly connected to the electric slider 13. The front end surface of the placement cylinder 12 in the middle is symmetrically rotatably connected to the No. 2 guide column 773. The lower end surface of the sliding frame 76 in the middle is fixedly connected to a fixing bar, and the front end surface of the fixing bar is rotatably connected to a pulley 774. The upper end surfaces of the two electric sliders 13 are commonly fixedly connected to the No. 2 cable 775. The middle section of the No. 2 cable 775 passes through the outside of the two No. 2 guide columns 773 and is slidably sleeved on the outside of the pulley 774.

[0041] When the auxiliary beam rod is placed into the placement tube 12: align the lower end of the auxiliary beam rod with the upper port of the placement tube 12 and then release it. The auxiliary beam rod moves downward under its own weight and gradually enters the placement tube 12. The lower end of the auxiliary beam rod abuts against the inclined introduction plate 74 (the initial position of the two inclined introduction plates 74 is a closed state in which the lower parts abut against each other). The auxiliary beam rod squeezes the inclined surface of the inclined introduction plate 74 to push the two inclined introduction plates 74 in the C-shaped frame 73 to rotate away from each other. At this time, the inclined introduction plate 74 can play a guiding role. After the auxiliary beam rod completely enters the placement tube 12, the auxiliary beam rod completely passes over the inclined introduction plate 74, and then the inclined introduction plate 74 is reset and reversed under the action of the torsion spring, and rotates again to a closed state in which the two inclined introduction plates 74 abut against each other.

[0042] When the two electric sliders 13 move away from each other, they will also drive the No. 1 cable 771 and the No. 2 cable 775 to move downward. When the No. 1 cable 771 is driven to move downward, it will drive the sliding frame 76 connected to it to move downward synchronously. When the two ends of the No. 2 cable 775 are pulled, it will drive the pulley 774 to move downward. The pulley 774 then drives the sliding frame 76 located in the middle to move downward through the fixed bar. During the downward movement of the sliding frame 76, the No. 2 spring 79 drives the sliding bar 72 to move downward synchronously. The sliding bar 72 then drives the C-shaped frame 73 to move synchronously. The C-shaped frame 73 then drives the top contact block 75 to move downward through the inclined introduction plate 74, so that the top contact block 75 moves downward and contacts the upper end of the sub-beam rod. Then the electric slider 13 continues to move, driving the No. 1 cable 771 and the No. 2 cable 775 moves, and the top contact block 75 stops moving after it hits the upper end of the auxiliary beam rod. The No. 1 cable 771 and the No. 2 cable 775 drive the sliding frame 76 to continue to move downward, and the sliding frame 76 that continues to move downward slowly drives the No. 2 spring 79 to be stretched. During the stretching process of the No. 2 spring 79, the top contact block 75 is continuously applied with a top pressure on the upper end of the auxiliary beam rod, so that the lower end of the auxiliary beam rod can be tightly pressed against the main beam. Then, the slide seat 2 can be controlled to move to the welding position point, and the welding gun 3 can be controlled to operate to weld the connection between the auxiliary beam rod and the main beam. When the transverse seat 82 stops moving due to the L-shaped limit plate 852 and the electric slider 13 continues to move, the electric slider 13 drives the L-shaped slide plate 81 to slide in the transverse seat 82, pushing the limit spring 86 to be gradually compressed.

[0043] See also Figure 2 , Figure 4 , Figure 5 and Figure 8In this embodiment, the fixed-point mechanism 9 includes two sliding grooves 91 symmetrically opened on the vertical section of the C-shaped slide 6 and a sliding frame 92 slidably connected to the sliding grooves 91, the rear end face of the sliding frame 92 is fixedly connected with a brake plate 93, and the upper cavity wall of the C-shaped slide 6 is provided with an embedding groove matching the brake plate 93, the front end faces of the left and right placement tubes 12 are fixedly connected with shaft rods 94, and a two-way spring telescopic rod 95 is hinged between the two shaft rods 94, the front end face of the sliding frame 92 is fixedly connected with a slide rod 96, and the outside of the slide rod 96 is slidably connected with a slip ring 97, and the middle part of the outer wall of the two-way spring telescopic rod 95 is fixedly connected with a connecting strip, and a spring telescopic top rod 98 is fixedly connected between the connecting strip and the slip ring 97, and the lower end face of the brake plate 93 can be set to a rough surface, which can enhance the friction resistance between the brake plate 93 and the main beam when it contacts the main beam.

[0044] The left and right placing tubes 12 will drive the shaft rod 94 to continue to move downward when the inclination angle is adjusted and rotate in the direction away from each other. The shaft rod 94 then drives the two-way spring telescopic rod 95 to move downward. The two-way spring telescopic rod 95 then drives the slip ring 97 to move downward through the connecting strip and the spring telescopic push rod 98. The slip ring 97 then pushes the sliding frame 92 to move downward in the sliding groove 91 through the sliding rod 96. The sliding frame 92 then drives the brake plate 93 to move downward and touch the main beam. Then the brake plate 93 stops moving and continues to adjust the angle. The left and right placing tubes 12 that are rotating drive the shaft rod 94 to continue to move downward. The shaft rod 94 then applies pressure to the spring telescopic push rod 98 through the two-way spring telescopic rod 95 and the connecting strip, so that the spring telescopic push rod 98 is gradually compressed. The spring telescopic push rod 98 then applies pressure to the brake plate 93, gradually increasing the friction between the brake plate 93 and the main beam, thereby temporarily locking the C-shaped slide 6 at the welding point position to ensure stability during welding.

[0045] After the welding of the secondary beam and the main beam is completed, the support plate is pushed forward on the slide rail plate 16 by manually pushing the equipment, and the support platform 10 then drives the placement cylinder 12 to move forward. During the forward movement of the placement cylinder 12, the limit stop bar 15 will be driven to contact the secondary beam, and then the limit stop bar 15 will be pushed to rotate around the lug group until the secondary beam is completely moved out of the placement cylinder 12, and the limit stop bar 15 is reset to the initial position; the forward movement of the placement cylinder 12 will also drive the shaft rod 94 to move synchronously, and the shaft rod 94 is then driven to the slip ring 97 through the two-way spring telescopic rod 95, the connecting strip and the spring telescopic push rod 98 to move forward on the slide rod 96, so that the brake plate 93 is always in a pressurized state during the forward movement.

[0046] Then, the two electric sliders 13 are controlled to move closer to each other. During the movement of the electric sliders 13 closer to each other, the No. 1 cable 771 and the No. 2 cable 775 are gradually loosened, and then the No. 1 spring 78 and the No. 2 spring 79 push the sliding bar 72 and the sliding frame 76 to reset upward until they move to the initial position height. After the two electric sliders 13 move closer to each other for a distance, they will drive the transverse seat 82 to move synchronously through the L-shaped slide plate 81, and the transverse seat 82 will then drive the two racks 84 to move closer to each other, and the racks 84 will then drive the rotating shaft 11 to rotate through the gear ring 83, and the rotating shaft 11 will then drive the left and right placement tubes 12 to rotate closer to the middle placement tube 12 until they rotate to the initial position.

[0047] The rotation of the left and right placement cylinders 12 will also drive the height of the shaft rod 94 to rise step by step. The shaft rod 94 then drives the two-way spring telescopic rod 95 to move up. The two-way spring telescopic rod 95 then drives the spring telescopic push rod 98 in the compressed state to release and reset to its natural length through the connecting strip. Then the spring telescopic push rod 98 is driven to move up synchronously, and the spring telescopic push rod 98 drives the brake plate 93 to move up through the slip ring 97, the slide rod 96 and the slide frame 92. The brake plate 93 is driven to move up and slide into the embedded groove to separate from the main beam, which can release the locked state of the C-shaped slide 6, and then the C-shaped slide 6 can be pushed to move horizontally on the main beam again. After moving the C-shaped slide 6 to the next welding point of the sub-beam group, the above-mentioned steps of placing the sub-beam rod into the placement cylinder 12, adjusting the inclination angles of the left and right placement cylinders 12, pushing the sub-beam rod to contact the main beam, and locking the C-shaped slide 6 on the main beam are repeated again, so that the welding process of the sub-beam rod and the main beam at the next position can be quickly performed.

[0048] During operation, the C-shaped slide 6 is pulled up to a suitable height, and the main beam is placed on the U-shaped placement seat 4. The position of the main beam is adjusted so that the C-shaped slide 6 is sleeved on the outside of the main beam. Then, the C-shaped slide 6 is pushed to move to the welding point, and the auxiliary beam rod is placed in the placement cylinder 12. Then, the two electric sliders 13 are controlled to move away from each other. During the movement of the electric slider 13, the tilting mechanism 8, the tightening mechanism 7 and the fixed-point mechanism 9 are triggered to operate synchronously. When the tilting mechanism 8 is running, the inclination angle of the left and right placement cylinders 12 is automatically and synchronously adjusted. When the tightening mechanism 7 is running, it automatically pushes the auxiliary beam rod in the placement cylinder 12 to tightly touch the main beam. When the fixed-point mechanism 9 is running, the C-shaped slide 6 is automatically locked on the main beam. Subsequently, By controlling the movement of the slide 2 to drive the welding gun 3 to move to the connection between the auxiliary beam and the main beam, the auxiliary beam and the main beam can be connected together by controlling the operation of the welding gun 3. After welding is completed, the support platform 10 is pushed forward to move the placement tube 12 away from the outside of the auxiliary beam. Then the two electric slides 13 are controlled to move closer to each other. At this time, the electric slide 13 triggers the tilting mechanism 8, the tightening mechanism 7 and the fixed point mechanism 9 to run in reverse and reset to the initial position. Then the C-shaped slide 6 can be pushed again to move on the main beam, and the C-shaped slide 6 can be quickly moved to the welding position of the next auxiliary beam group. The above steps are repeated again to quickly weld the next auxiliary beam to the main beam, thereby continuously welding the auxiliary beam group and the main beam.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for processing a tower crane mechanical arm, comprising a processing table, a slide seat slidably connected to the processing table, and a welding gun arranged on the slide seat, characterized in that: The upper end surface of the processing table is symmetrically fixedly connected with a U-shaped placement seat for placing the main beam of the robot arm, a transverse moving part is installed on the upper part of the processing table, a C-shaped slide is installed on the transverse moving part, a support platform is slidably arranged on the upper end surface of the C-shaped slide, and the upper end surface of the support platform is symmetrically fixedly connected with support ears, and a rotating shaft is rotatably connected to the support ears, and a placement cylinder for placing the auxiliary beam rod of the robot arm is fixedly connected to the rear ends of the two rotating shafts and the middle of the upper end surface of the support platform respectively; The upper surface of the support platform is symmetrically slidably connected with an electric slider, and a tightening mechanism for pushing the secondary beam rod placed in the placing tube to tightly touch the main beam is provided between the electric slider and the placing tube; A tilting mechanism for adjusting the inclination angles of the left and right placement cylinders is provided between the electric slider and the rotating shaft, and a fixed-point mechanism for locking the C-shaped slide at the welding point of the main beam is provided between the left and right placement cylinders and the C-shaped slide; The tilting mechanism comprises an L-shaped slide plate, a transverse seat, a gear ring, a rack and a distance limiting component. The upper end surfaces of the two electric slide blocks are respectively fixedly connected with the L-shaped slide plate. The transverse seat is slidingly sleeved on the transverse section of the L-shaped slide plate. A limit spring is fixedly connected between the transverse seat and the L-shaped slide plate. The outer part of the rotating shaft is fixedly connected with a gear ring. The lower end surface of the transverse seat is fixedly connected with a rack meshing with the upper part of the gear ring. The tightening mechanism includes a strip-shaped through groove opened on the front part of the placement cylinder, a sliding bar slidably connected in the strip-shaped through groove, a C-shaped frame fixedly connected to the rear end of the sliding bar, two inclined introduction plates symmetrically hinged on the lower end surface of the C-shaped frame through a rotating column and a torsion spring, a top contact block fixedly connected to the lower part of the inclined introduction plate, and a sliding frame slidably sleeved on the outside of the sliding bar, and a pulling assembly for intermittently pulling the C-shaped frame downward so that the top contact block abuts against the upper part of the auxiliary beam rod and pushes the auxiliary beam rod downward is provided between the electric slider and the sliding frame. Through the mutual linkage and cooperation of the tilting mechanism, the tightening mechanism and the fixed-point mechanism, the angle adjustment and tightening of the auxiliary beam rod and the positioning and locking of the C-shaped slide are completed synchronously.

2. The tower crane mechanical arm processing welding equipment according to claim 1 is characterized in that: A distance limiting component for limiting the lateral travel distance of the transverse seats is commonly arranged between the two transverse seats and the support platform.

3. The tower crane mechanical arm processing welding equipment according to claim 1 is characterized in that: A No. 1 spring is fixedly connected between the strip-shaped through groove and the sliding bar, and a No. 2 spring is fixedly connected between the sliding frame and the sliding bar.

4. The tower crane mechanical arm processing welding equipment according to claim 1 is characterized in that: The transverse movement portion includes a transverse guide groove opened on the end surface of the processing table, a guide block is slidably connected in the transverse guide groove, a connecting telescopic rod is fixedly connected to the upper end surface of the guide block, and the C-shaped slide is fixedly connected to the upper end of the connecting telescopic rod.

5. The tower crane mechanical arm processing welding equipment according to claim 1 is characterized in that: The fixed-point mechanism includes two sliding grooves symmetrically opened on the vertical section of the C-shaped slide and a sliding frame slidably connected to the sliding grooves, the rear end face of the sliding frame is fixedly connected with a brake plate, and the upper cavity wall of the C-shaped slide is provided with an embedding groove matching the brake plate, the front end faces of the left and right placing tubes are fixedly connected with an axle rod, a bidirectional spring telescopic rod is hinged between the two axles, the front end face of the sliding frame is fixedly connected with a sliding rod, the outside of the sliding rod is slidably connected with a slip ring, a connecting strip is fixedly connected to the middle of the outer wall of the bidirectional spring telescopic rod, and a spring telescopic top rod is fixedly connected between the connecting strip and the slip ring.

6. The tower crane mechanical arm processing welding equipment according to claim 1, characterized in that: The upper and lower cavity walls of the C-shaped slide are evenly spaced with a plurality of slots, and a guide wheel is rotated in each of the slots.

7. The tower crane mechanical arm processing welding equipment according to claim 2 is characterized in that: The distance limiting assembly includes a strip groove opened on the upper end surface of the horizontal seat, an L-shaped limiting plate slidably connected to the strip groove, a support rod fixedly connected to the middle part of the upper end surface of the support platform, and a bidirectional screw rotatably connected to the support rod. The lower end surface of the transverse section of the L-shaped limiting plate is fixedly connected to a connecting ear, and the connecting ear is threadedly connected to the bidirectional screw.

8. The tower crane mechanical arm processing welding equipment according to claim 1, characterized in that: The rear end surfaces of the two front and rear wall plates of the placement cylinder are equidistantly connected to a plurality of lug groups, the lug groups are fixedly connected to a connecting shaft, and a limited stop bar is hinged on the connecting shaft through a torsion spring.

9. The tower crane mechanical arm processing welding equipment according to claim 3, characterized in that: The pulling assembly includes a No. 1 cable, a No. 1 guide column, a No. 2 guide column, a pulley and a No. 2 cable. The lower parts of the left and right sliding frames are fixedly connected to the No. 1 cable, and the front ends of the left and right placement cylinders are rotatably connected to the No. 1 guide column. The lower end of the No. 1 cable passes through the outside of the No. 1 guide column and is fixedly connected to the electric slider. The front end surface of the placement cylinder in the middle is symmetrically rotatably connected to the No. 2 guide column. The lower end surface of the sliding frame in the middle is fixedly connected to a fixing bar, and the front end surface of the fixing bar is rotatably connected to a pulley. The upper end surfaces of the two electric sliders are commonly fixedly connected to the No. 2 cable, and the middle section of the No. 2 cable passes through the outside of the two No. 2 guide columns and is slidably mounted on the outside of the pulley.

10. The tower crane mechanical arm processing welding equipment according to claim 1, characterized in that: The upper part of the C-shaped slide is symmetrically and fixedly connected with two slide rail plates, the upper end surface of the slide rail plate is provided with a guide groove group, and the lower end surface of the support is fixedly connected with a sliding block slidably arranged in the guide groove group.

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