Front rack robot automatic welding workstation

Abstract

The invention discloses an automatic robot welding work station for a front rack. The automatic robot welding work station comprises a movable track, a flexible welding machine mechanism, a rack side plate welding tool and a rack welding tool. A welding robot is mounted on the upper side of the moving track; the flexible welding machine mechanism comprises a first platform, a transverse and vertical square connecting piece fixing assembly and a bumper fixing assembly, the first platform is located on the left side of the moving track, the transverse and vertical square connecting piece fixing assembly is arranged at the front end of the upper side of the first platform, and the bumper fixing assembly is arranged at the rear end of the upper side of the first platform; according to the front rack robot automatic welding workstation, through cooperation of the transmission element and the welding robot, all assemblies of an agricultural machine front rack can be automatically fixed and welded, the labor intensity of workers is reduced, the automation degree is high, meanwhile, the device can conduct overturning adjustment on the welding portion of the agricultural machine front rack through the transmission element according to the welding requirement of the agricultural machine front rack, and the welding efficiency is improved. And the welding operation of the welding robot on the front rack is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of welding of front frames of agricultural machinery, in particular to a front frame robot automatic welding workstation. Background Art

[0002] Agricultural machinery refers to various machines used in the production process of crop planting and animal husbandry, as well as in the primary processing and handling of agricultural and livestock products. The front frame, as a component in the agricultural machinery industrial production process, is composed of horizontal and vertical connecting components, bumper components, front and rear side panel components, a diesel engine mounting base and a front frame connector. When preparing the front frame of the agricultural machinery, welding is usually used to connect and fix the components of the front frame. The traditional front frame welding method is usually manual spot welding and splicing. When welding the front frame, the staff first manually supports and fixes a certain component of the front frame, and then the staff holds a spot welding machine in the other hand to weld and fix the component connection parts of the front frame. However, this method usually requires the staff to hold and support and fix the components of the front frame, and perform welding based on the staff's own experience. The degree of automation is low and needs to be improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a front frame robot automatic welding workstation. The device can automatically fix and weld the various components of the front frame of agricultural machinery through the cooperation of transmission elements and welding robots, thereby reducing manual labor intensity and having a high degree of automation. At the same time, the device can flip and adjust its welding part according to the welding requirements of the front frame of the agricultural machinery through transmission elements, which is more conducive to the welding operation of the welding robot on the front frame and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a front frame robot automatic welding workstation, comprising a moving track, a flexible welding machine mechanism, a frame side panel welding tool and a frame welding tool; Mobile track: A welding robot is installed on its upper side; Flexible welding machine mechanism: it includes a platform 1, a horizontal and vertical connecting piece fixing assembly and a bumper fixing assembly, wherein the platform 1 is located on the left side of the moving track, a horizontal and vertical connecting piece fixing assembly is provided at the upper front end of the platform 1, and a bumper fixing assembly is provided at the upper rear end of the platform 1; Frame side panel welding tooling: It is located at the front left end of the moving track; Frame welding tooling: It is located at the front right end of the moving track. The device cooperates with the transmission elements and the welding robot to automatically fix and weld the components of the front frame of the agricultural machinery, reduce the intensity of manual labor, and has a high degree of automation. At the same time, the device can flip and adjust its welding part according to the welding requirements of the front frame of the agricultural machinery through the transmission elements, which is more conducive to the welding operation of the welding robot on the front frame.

[0005] Furthermore, it also includes a controller, which is located outside the moving track, the input end of the controller is electrically connected to the external power supply, and the output end of the controller is electrically connected to the input end of the welding robot, so that the control of the electrical components is convenient.

[0006] Furthermore, the horizontal and vertical connecting member fixing components include a base one, a limit column, an electro-hydraulic push rod one, an intercepting seat, an electro-hydraulic push rod two, a pressure seat one and an upright clamping seat, the base one is arranged at the upper front end of the platform one, the upper side of the base one is provided with two symmetrically distributed limit columns and two symmetrically distributed electro-hydraulic push rods two, the telescopic ends of the electro-hydraulic push rods two are provided with a pressure seat one, the upper front end of the platform one is provided with two symmetrically distributed electro-hydraulic push rods one and two symmetrically distributed upright clamping seats, the telescopic ends of the electro-hydraulic push rod one are provided with an intercepting seat, the input ends of the electro-hydraulic push rod one and the electro-hydraulic push rod two are electrically connected to the output end of the controller, and the various components of the horizontal and vertical connecting components in the front frame are welded and self-fixed.

[0007] Furthermore, the bumper fixing assembly includes a base 2, a limit clamp seat 1 and a vertical limit frame. The base 2 is arranged at the upper rear end of the platform 1. The upper side of the base 2 is provided with two symmetrically distributed limit clamp seats 1 and two symmetrically distributed vertical limit frames to weld and self-fix the various components of the bumper assembly in the front frame.

[0008] Furthermore, the frame side panel welding tooling includes platform two, a placement seat, an electro-hydraulic push rod three, a pressure seat two, a support card seat one, an electro-hydraulic push rod four and a pressure seat three. The platform two is located at the front left end of the movable track. Two placement seats are provided on the upper side of the platform two. A plurality of evenly distributed electro-hydraulic push rods three, a support card seat one and an electro-hydraulic push rod four are provided on the upper side of the platform two. The telescopic end of the electro-hydraulic push rod three is provided with a pressure seat two, and the telescopic end of the electro-hydraulic push rod four is provided with a pressure seat three. The input ends of the electro-hydraulic push rod three and the electro-hydraulic push rod four are electrically connected to the output end of the controller. The electro-hydraulic push rod three, the support card seat one and the electro-hydraulic push rod four are installed in cooperation with the adjacent placement seats to weld and self-fix the components of the frame side panel in the front frame.

[0009] Furthermore, the frame welding tooling includes a support base, a rotating frame, a brake motor, a bumper limit assembly, a front frame connecting party and a diesel engine mounting base limit assembly, a frame side panel limit assembly, a horizontal and vertical connecting piece limit assembly and a support card seat 2. The support base is located at the front right end of the movable track, and the interior of the support base is rotatably connected to the rotating frame through a rotating shaft. A brake motor is provided on the left side of the support base, and the input end of the brake motor is electrically connected to the output end of the controller, and the output shaft of the brake motor is fixedly connected to the rotating shaft on the left side. A bumper limit assembly is provided at the upper left end of the rotating frame, a front frame connecting party and a diesel engine mounting base limit assembly are provided at the middle left end of the rotating frame, frame side panel limit assemblies are provided at the front and rear ends of the middle part of the rotating frame, and a horizontal and vertical connecting piece limit assembly and two symmetrically distributed support card seats 2 are provided at the middle right end of the rotating frame to weld and fix the components when the front frame is welded as a whole.

[0010] Furthermore, the bumper limit assembly includes a connecting seat 1, an electro-hydraulic push rod 5, a pressure seat 4 and a clamping column. The connecting seat 1 is arranged at the upper left end of the rotating frame. Two symmetrically distributed electro-hydraulic push rods 5 and two symmetrically distributed clamping columns are provided on the upper side of the connecting seat 1. The input ends of the electro-hydraulic push rods 5 are electrically connected to the output ends of the controller. The telescopic ends of the electro-hydraulic push rods 5 are provided with pressure seats 4, which are used to weld and self-fix the bumper assembly when the front frame is welded as a whole.

[0011] Furthermore, the front frame connector and diesel engine mounting base limit assembly include a connector seat 2, an electro-hydraulic push rod 6, a pressure seat 5, a front frame connector support card seat and a diesel engine mounting base support card seat. The connector seat 2 is arranged at the left end of the middle part of the rotating frame. The upper side of the connector seat 2 is provided with a front frame connector support card seat, a diesel engine mounting base support card seat and three symmetrically distributed electro-hydraulic push rods 6. The input ends of the electro-hydraulic push rods 6 are electrically connected to the output ends of the controller. The telescopic ends of the electro-hydraulic push rods 6 are provided with pressure seats 5. The front frame connector support card seat and the diesel engine mounting base support card seat are both installed in cooperation with the adjacent pressure seats 5. The front frame connector and the diesel engine mounting base are welded and self-fixed when the front frame is welded as a whole.

[0012] Furthermore, the frame side panel limit assembly includes a contact card seat, an electro-hydraulic push rod seven and a pressure seat six. The contact card seat is symmetrically arranged at the front and rear ends of the middle part of the rotating frame. Two symmetrically distributed electro-hydraulic push rods seven are arranged at the upper end of the contact card seat. The input ends of the electro-hydraulic push rods seven are electrically connected to the output ends of the controller. The telescopic ends of the electro-hydraulic push rods seven are provided with pressure seats six, which are used to weld and self-fix the frame side panel assembly when the front frame is welded as a whole.

[0013] Furthermore, the horizontal and vertical connection limit assembly includes a connection seat three, an electro-hydraulic push rod eight and a pressure seat seven. The connection seat three is arranged at the right end of the middle part of the rotating frame. The bottom wall of the connection seat three is provided with two symmetrically distributed electro-hydraulic push rods eight. The input ends of the electro-hydraulic push rods eight are electrically connected to the output ends of the controller. The telescopic ends of the electro-hydraulic push rods eight are provided with pressure seats seven. The horizontal and vertical connection assemblies are welded and self-fixed when the front frame is welded as a whole.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the front frame robot automatic welding workstation has the following advantages: 1. When welding the components of the front frame, the components of the front frame of the agricultural machinery can be automatically fixed and welded through the mobile track, welding robot, flexible welding machine mechanism, frame side panel welding tooling, frame welding tooling and controller, which reduces the labor intensity and has a high degree of automation.

[0015] 2. When welding the components of the front frame, the welding parts can be flipped and adjusted according to the welding requirements of the front frame of the agricultural machinery through the support base, rotating frame and brake motor, which is more conducive to the welding operation of the front frame by the welding robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 The present invention is a schematic diagram of the flexible welding machine structure; Figure 3 This is a schematic diagram of the frame side panel welding tooling structure of the present invention; Figure 4 This is a schematic diagram of the frame welding tooling structure of the present invention; Figure 5 It is a schematic diagram of the top view of the frame welding tooling of the present invention.

[0017] In the figure: 1 moving track, 2 welding robot, 3 flexible welding machine mechanism, 31 platform one, 32 horizontal and vertical connecting parts fixing assembly, 321 base one, 322 limit column, 323 electro-hydraulic push rod one, 324 interception seat, 325 electro-hydraulic push rod two, 326 pressure seat one, 327 upright card seat, 33 bumper fixing assembly, 331 base two, 332 limit card seat one, 333 vertical limit frame, 4 frame side panel welding tooling, 41 platform two, 42 placement seat, 43 electro-hydraulic push rod three, 44 pressure seat two, 45 support card seat one, 46 electro-hydraulic push rod four, 47 pressure seat three, 5 frame welding tooling, 51 support base, 52 rotary Rotating frame, 53 brake motor, 54 bumper limit assembly, 541 connecting seat one, 542 electro-hydraulic push rod five, 543 pressure seat four, 544 clamping column, 55 front frame connecting side and diesel engine mounting base limit assembly, 551 connecting seat two, 552 electro-hydraulic push rod six, 553 pressure seat five, 554 front frame connecting side support seat, 555 diesel engine mounting base support seat, 56 frame side panel limit assembly, 561 contact seat, 562 electro-hydraulic push rod seven, 563 pressure seat six, 57 horizontal and vertical connecting piece limit assembly, 571 connecting seat three, 572 electro-hydraulic push rod eight, 573 pressure seat seven, 58 support seat two, 6 controller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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 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.

[0019] See also Figure 1-5 ,This embodiment provides a technical solution: a front frame robot automatic welding workstation, including a moving track 1, a flexible welding machine mechanism 3, a frame side panel welding tool 4 and a frame welding tool 5; Mobile track 1: A welding robot 2 is installed on its upper side, and also includes a controller 6. The controller 6 is located outside the mobile track 1. The input end of the controller 6 is electrically connected to the external power supply, and the output end of the controller 6 is electrically connected to the input end of the welding robot 2. The mobile track 1 is composed of a base, a slide plate, a travel drive mechanism, etc. The base is made of rectangular steel pipe welding, and the rigidity and strength meet the use requirements. The travel drive mechanism adopts a servo motor + precision reducer + gear rack transmission mode, and the repeated positioning accuracy meets the use requirements. The input end of the servo motor is electrically connected to the output end of the controller 6. The servo motor is controlled by the controller 6 to realize the horizontal movement control of the welding robot 2; Flexible welding machine mechanism 3: It includes a platform 31, a horizontal and vertical connecting piece fixing assembly 32 and a bumper fixing assembly 33. The platform 31 is located on the left side of the moving track 1. The upper front end of the platform 31 is provided with a horizontal and vertical connecting piece fixing assembly 32. The upper rear end of the platform 31 is provided with a bumper fixing assembly 33. The horizontal and vertical connecting piece fixing assembly 32 includes a base 321, a limit column 322, an electro-hydraulic push rod 1 323, an intercepting seat 324, an electro-hydraulic push rod 2 325, a pressure seat 1 326 and an upright seat 327. The base 321 is arranged at the upper front end of the platform 31. The upper side of the base 321 is provided with two symmetrically distributed The limiting column 322 and two symmetrically distributed electro-hydraulic push rods 325 are provided, and the telescopic ends of the electro-hydraulic push rods 325 are provided with a pressure seat 326. The upper front end of the platform 31 is provided with two symmetrically distributed electro-hydraulic push rods 323 and two symmetrically distributed upright clamping seats 327. The telescopic ends of the electro-hydraulic push rods 323 are provided with intercepting seats 324. The input ends of the electro-hydraulic push rods 323 and the electro-hydraulic push rods 325 are electrically connected to the output end of the controller 6. The bumper fixing assembly 33 includes a base 331, a limiting clamping seat 332 and a vertical limiting frame 333. The base 331 is arranged at the upper rear end of the platform 31. The base 331 Two symmetrically distributed limiting card seats 332 and two symmetrically distributed vertical limiting frames 333 are provided on the upper side. When the front frame of the agricultural machinery is automatically welded, the controller 6 starts the electro-hydraulic push rod 323 to extend its telescopic end to drive the interception seat 324 to move. The staff inserts the bottom component of the horizontal and vertical connecting pieces into the limiting column 322, and the bottom component of the horizontal and vertical connecting pieces is translated and limited through the two interception seats 324 and the limiting column 322. Then, the left and right side components of the horizontal and vertical connecting pieces are respectively inserted into the corresponding upright card seats 327, so that the bottoms of the left and right side components of the horizontal and vertical connecting pieces are aligned with the bottom components of the horizontal and vertical connecting pieces. The upper side of the parts is contacted, and then the controller 6 starts the electro-hydraulic push rod 2 325 so that its telescopic end drives the pressure seat 1 326 to move, thereby vertically moving and squeezing the bottom components of the horizontal and vertical connecting parts to limit the position, and then the controller 6 starts the welding robot 2 to automatically weld and fix the components of the horizontal and vertical connecting parts. At the same time, the staff will successively clamp the bumper components into the limiting slots formed by the limiting clamping seat 1 332 and the vertical limiting frame 333, and then the controller 6 starts the welding robot 2 to weld and fix the components of the bumper. The device can weld and self-fix the bumper components and the components of the horizontal and vertical connecting components in the front frame; Frame side panel welding tool 4: It is located at the front left end of the moving track 1. The frame side panel welding tool 4 includes platform two 41, a placement seat 42, an electro-hydraulic push rod three 43, a pressure seat two 44, a support card seat one 45, an electro-hydraulic push rod four 46 and a pressure seat three 47. Platform two 41 is located at the front left end of the moving track 1. Two placement seats 42 are arranged on the upper side of platform two 41. A plurality of evenly distributed electro-hydraulic push rods three 43, a support card seat one 45 and an electro-hydraulic push rod four 46 are arranged on the upper side of platform two 41. The telescopic end of the electro-hydraulic push rod three 43 is provided with a pressure seat two 44, and the telescopic end of the electro-hydraulic push rod four 46 is provided with a pressure seat three 47. The input ends of the electro-hydraulic push rod three 43 and the electro-hydraulic push rod four 46 are electrically connected to the output end of the controller 6. The electro-hydraulic push rod three 43, the support card seat one 45 and the electro-hydraulic push rod four 46 are all installed in cooperation with the adjacent placement seat 42. The electro-hydraulic push rod three 43, the support card seat one 45 and the electro-hydraulic push rod four 46 are installed in cooperation with the adjacent placement seat 42. There are more than two support bases 45 and electro-hydraulic push rods 46. The staff place the front and rear side panels of the front frame on the corresponding placement seats 42, and then place the reinforcing ribs and arc reinforcing ribs in the side panel assembly above the side panels placed on the placement seats 42, respectively. The reinforcing ribs are placed and supported by the corresponding support bases 45. Then the controller 6 starts the electro-hydraulic push rod 3 43 so that its telescopic end drives the pressure seat 2 44 to move downward, and the arc reinforcing ribs are squeezed and fixed to the upper surface of the side panel through the pressure seat 2 44. Then the controller 6 starts the electro-hydraulic push rod 46 so that its telescopic end drives the pressure seat 3 47 to move downward, thereby vertically moving and squeezing the reinforcing ribs placed on the side panels. Then the controller 6 starts the welding robot 2 to weld the two side panel assemblies of the front frame. The device performs welding and self-fixing on each assembly of the rack side panel in the front frame. Frame welding fixture 5: It is located at the front right end of the moving track 1. The frame welding fixture 5 includes a support base 51, a rotating frame 52, a brake motor 53, a bumper limit assembly 54, a front frame connection side and a diesel engine mounting base limit assembly 55, a frame side panel limit assembly 56, a horizontal and vertical connection piece limit assembly 57 and a support card seat 2 58. The support base 51 is located at the front right end of the moving track 1. The interior of the support base 51 is rotatably connected to the rotating frame 52 through a rotating shaft. A brake motor 53 is provided on the left side of the support base 51. The input end of the brake motor 53 is electrically connected to the output end of the controller 6. The output shaft of the brake motor 53 is fixedly connected to the rotating shaft on the left. The bumper limit assembly 54 is provided on the upper left end of the rotating frame 52. The rotating frame 52 A front frame connection square and a diesel engine mounting base limiting assembly 55 are provided at the middle left end, frame side plate limiting assemblies 56 are provided at the front and rear ends of the middle part of the rotating frame 52, a horizontal and vertical connection piece limiting assembly 57 and two symmetrically distributed supporting card seats 2 58 are provided at the middle right end of the rotating frame 52, a bumper limiting assembly 54 includes a connecting seat 1 541, an electro-hydraulic push rod 5 542, a pressure seat 4 543 and a card column 544, the connecting seat 1 541 is arranged at the upper left end of the rotating frame 52, two symmetrically distributed electro-hydraulic push rods 5 542 and two symmetrically distributed card columns 544 are provided on the upper side of the connecting seat 1 541, the input ends of the electro-hydraulic push rods 5 542 are electrically connected to the output ends of the controller 6, and the telescopic ends of the electro-hydraulic push rods 5 542 are provided with pressure seats 4 543, and the front engine The frame connector and diesel engine mounting base limiting assembly 55 include a second connector 551, a sixth electro-hydraulic push rod 552, a fifth pressure seat 553, a front frame connector support seat 554 and a diesel engine mounting base support seat 555. The second connector 551 is arranged at the left end of the middle part of the rotating frame 52. The upper side of the second connector 551 is provided with a front frame connector support seat 554, a diesel engine mounting base support seat 555 and three symmetrically distributed electro-hydraulic push rods 6 552. The input ends of the electro-hydraulic push rods 6 552 are electrically connected to the output ends of the controller 6. The telescopic ends of the electro-hydraulic push rods 6 552 are provided with fifth pressure seats 553. The front frame connector support seat 554 and the diesel engine mounting base support seat 555 are both installed in cooperation with the adjacent fifth pressure seat 553. The frame side plate The limit assembly 56 includes a contact card seat 561, an electro-hydraulic push rod seven 562 and a pressure seat six 563. The contact card seat 561 is symmetrically arranged at the front and rear ends of the middle part of the rotating frame 52. Two symmetrically distributed electro-hydraulic push rods seven 562 are arranged at the upper end of the contact card seat 561. The input ends of the electro-hydraulic push rods seven 562 are electrically connected to the output ends of the controller 6. The telescopic ends of the electro-hydraulic push rods seven 562 are provided with pressure seats six 563. The horizontal and vertical connecting piece limit assembly 57 includes a connecting seat three 571, an electro-hydraulic push rod eight 572 and a pressure seat seven 573. The connecting seat three 571 is arranged at the right end of the middle part of the rotating frame 52. The bottom wall of the connecting seat three 571 is provided with two symmetrically distributed electro-hydraulic push rods eight 572. The input ends of the electro-hydraulic push rods eight 572 are electrically connected to the output ends of the controller 6.The telescopic ends of the electro-hydraulic push rod eight 572 are each provided with a pressure seat seven 573. The staff removes the welded horizontal and vertical connecting pieces, and places the lower ends of the horizontal and vertical connecting pieces on the connecting seat three 571. Then the controller 6 starts the electro-hydraulic push rod eight 572 so that its telescopic end drives the pressure seat seven 573 to squeeze and fix the bottom of the horizontal and vertical connecting pieces. Then the staff removes the welded bumper assembly from the base two 331, and then inserts the bumper assembly into the clamping column 544. The bumper assembly is translated and limited by the clamping column 544. Then the controller 6 starts the electro-hydraulic push rod five 542 so that its telescopic end drives the pressure seat four 543 to move, thereby The assembly is vertically extruded, and then the vertical movement is limited, and then the front and rear side panel assemblies are respectively placed in the corresponding contact card seat 561, and then the controller 6 starts the electro-hydraulic push rod seven 562 so that its telescopic end drives the corresponding pressure seat six 563 to move, so as to fix the side panel assembly to the corresponding contact card seat 561. At this time, the right end of the reinforcing rib plate of the side panel assembly is respectively connected to the corresponding support card seat two 58, and then the front frame connection side is connected to the front frame connection side support card seat 554, and the diesel engine mounting base is connected to the diesel engine mounting base support card seat 555, and then the controller 6 starts the electro-hydraulic push rod six 552 to drive the pressure seat five 5 53 moves downward, thereby squeezing and limiting the corresponding diesel engine mounting base or the front frame connection side. After the fixed limiting between the components of the front frame is completed, the controller 6 starts the welding robot 2 to weld and fix the components of the front frame. The operation is convenient. When the device welds the components of the front frame as a whole, the controller 6 starts the brake motor 53 to make its output shaft drive the rotating frame 52 to rotate through the rotating shaft, and the rotating frame 52 drives the components of the front frame fixed by the device to flip. By flipping and adjusting the components of the front frame, the position of the welding points is adjusted to facilitate the welding operation. After the brake motor 53 is energized, the armature inside the brake motor 53 is electrically The magnetic attraction makes the brake disc rotatable and the brake motor 53 rotate freely. When the brake motor 53 loses power, the electromagnet loses power, and the armature is immediately supported by the spring, so that the brake disc and the rear end cover of the motor are pressed together and stop rotating. Therefore, the brake motor 53 has a self-locking function. The controller 6 controls the brake motor 53 so that its forward and reverse rotation does not exceed 360 degrees, thereby avoiding the winding phenomenon. The device can weld and fix the components when the front frame is welded as a whole. At the same time, the device can flip and adjust its welding part according to the welding requirements of the front frame of the agricultural machinery through the transmission element, which is more conducive to the welding operation of the welding robot on the front frame.

[0020] The working principle of a front frame robot automatic welding workstation provided by the present invention is as follows: when automatically welding the front frame of the agricultural machinery, the controller 6 starts the electro-hydraulic push rod 1 323 to extend its telescopic end to drive the interception seat 324 to move, and the staff inserts the bottom component of the horizontal and vertical connecting pieces into the limiting column 322, and limits the translation of the bottom component of the horizontal and vertical connecting pieces through the two interception seats 324 and the limiting column 322, and then inserts the left and right side components of the horizontal and vertical connecting pieces into the corresponding upright holders 327 respectively, so that the bottoms of the left and right side components of the horizontal and vertical connecting pieces are in contact with the upper side of the bottom component of the horizontal and vertical connecting pieces, and then the controller 6 starts the electro-hydraulic push rod 2 325 to make its telescopic end drive the pressure seat 1 326 to move, thereby The bottom component of the connecting piece is vertically moved and squeezed to limit the position, and then the controller 6 starts the welding robot 2 to automatically weld and fix the components of the horizontal and vertical connecting pieces. At the same time, the staff will successively clamp the bumper components into the limit card slot formed by the limit card seat 332 and the vertical limit frame 333, and then the controller 6 starts the welding robot 2 to weld and fix the components of the bumper. Then the staff will place the front and rear side panels of the front frame on the corresponding placement seats 42, and then place the reinforcing ribs and arc reinforcing ribs in the side panel assembly on top of the side panels placed on the placement seats 42, and support the reinforcing ribs through the corresponding support card seat 45, and then the controller 6 starts the electro-hydraulic push rod 3 43 so that its telescopic end drives the pressure seat 2 4 4 moves downward, and the arc reinforcing rib plate is squeezed and fixed to the upper surface of the side plate through the pressure seat 2 44, and then the controller 6 starts the electro-hydraulic push rod 4 46 so that its telescopic end drives the pressure seat 3 47 to move downward, so as to vertically move and squeeze the reinforcing rib plate placed on the side plate to limit the position, and then the controller 6 starts the welding robot 2 to weld the two side plate assemblies of the front frame, and then the staff removes the welded horizontal and vertical connecting pieces, and places the lower ends of the horizontal and vertical connecting pieces on the connecting seat 3 571, and then the controller 6 starts the electro-hydraulic push rod 8 572 so that its telescopic end drives the pressure seat 7 573 to squeeze and fix the bottom of the horizontal and vertical connecting pieces, and then the staff removes the welded bumper assembly from the base 2 331, and then inserts the bumper assembly into the clamping column 544. , the bumper assembly is limited in translation through the clamping column 544, and then the controller 6 starts the electro-hydraulic push rod five 542 so that its telescopic end drives the pressure seat four 543 to move, thereby vertically squeezing the bumper assembly and then limiting its vertical movement, and then the front and rear side panel assemblies are respectively placed in the corresponding contact clamping seats 561, and then the controller 6 starts the electro-hydraulic push rod seven 562 so that its telescopic end drives the corresponding pressure seat six 563 to move, thereby fixing the side panel assembly to the corresponding contact clamping seat 561, at this time, the right end of the reinforcing rib plate of the side panel assembly is respectively clamped into the corresponding support clamping seat two 58, and then the front frame connecting side is clamped into the front frame connecting side support clamping seat 554, and the diesel engine mounting base is clamped into the diesel engine mounting base support clamping seat 555,Then the controller 6 starts the electro-hydraulic push rod 6 552 to drive the pressure seat 5 553 to move downward, so as to squeeze and limit the corresponding diesel engine mounting base or the front frame connection side. After the fixed limit between the components of the front frame is completed, the controller 6 starts the welding robot 2 to weld and fix the components of the front frame. The operation is convenient. The movable track 1 is composed of a base, a slide plate, a walking drive mechanism, etc. The base is made of rectangular steel pipe welding, and the rigidity and strength meet the use requirements. The walking drive mechanism adopts a servo motor + precision reducer + gear rack transmission mode, and the repeated positioning accuracy meets the use requirements. The input end of the servo motor is electrically connected to the output end of the controller 6. The servo motor is controlled by the controller 6 to run and the horizontal movement control of the welding robot 2 is realized. The device controls the front machine When the components of the frame are welded as a whole, the controller 6 starts the brake motor 53 so that its output shaft drives the rotating frame 52 to rotate through the rotating shaft, and the rotating frame 52 drives the fixed front frame components to flip over. By flipping and adjusting the components of the front frame, the position of the welding points is adjusted to facilitate the welding operation. After the brake motor 53 is energized, the armature inside the brake motor 53 is electromagnetically attracted, so that the brake disc is in a rotatable state and the brake motor 53 rotates freely. When the brake motor 53 loses power, the electromagnet loses power, and the armature is immediately supported by the spring, so that the brake disc and the rear end cover of the motor are pressed together and stop rotating. Therefore, the brake motor 53 has a self-locking function. The controller 6 controls the brake motor 53 so that its forward and reverse rotation does not exceed 360 degrees, thereby avoiding the winding phenomenon.

[0021] It is worth noting that the controller 6 disclosed in the above embodiment can adopt 6ES7274-1XK30-0XA0, the welding robot 2 can adopt IRB6700-150 / 3.20 industrial robot, the brake motor 53 can adopt YEJ6324, the electro-hydraulic push rod 1 323, the electro-hydraulic push rod 2 325, the electro-hydraulic push rod 3 43, the electro-hydraulic push rod 4 46, the electro-hydraulic push rod 5 542, the electro-hydraulic push rod 6 552, the electro-hydraulic push rod 7 562 and the electro-hydraulic push rod 8 572 can all adopt DYZW integral vertical micro electro-hydraulic push rods, and the controller 6 controls the welding robot 2, the brake motor 53, the electro-hydraulic push rod 1 323, the electro-hydraulic push rod 2 325, the electro-hydraulic push rod 3 43, the electro-hydraulic push rod 4 46, the electro-hydraulic push rod 5 542, the electro-hydraulic push rod 6 552, the electro-hydraulic push rod 7 562 and the electro-hydraulic push rod 8 572 to work, all of which adopt the methods commonly used in the prior art.

[0022] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A front frame robot automatic welding workstation, characterized by: It comprises a movable track (1), a flexible welding machine mechanism (3), a frame side plate welding tool (4) and a frame welding tool (5); Mobile track (1): a welding robot (2) is installed on its upper side; A flexible welding machine mechanism (3): comprising a platform one (31), a horizontal and vertical connecting piece fixing assembly (32) and a bumper fixing assembly (33), wherein the platform one (31) is located on the left side of the moving track (1), the horizontal and vertical connecting piece fixing assembly (32) is provided at the upper front end of the platform one (31), and the bumper fixing assembly (33) is provided at the upper rear end of the platform one (31); Frame side panel welding tool (4): located at the front left end of the moving track (1); Frame welding tooling (5): It is located at the front right end of the moving track (1).

2. The front frame robot automatic welding workstation according to claim 1, characterized in that: It also includes a controller (6), which is located outside the movable track (1), an input end of the controller (6) is electrically connected to an external power supply, and an output end of the controller (6) is electrically connected to an input end of the welding robot (2).

3. The front frame robot automatic welding workstation according to claim 2, characterized in that: The horizontal and vertical connecting member fixing assembly (32) comprises a base 1 (321), a limiting column (322), an electro-hydraulic push rod 1 (323), an intercepting seat (324), an electro-hydraulic push rod 2 (325), a pressing seat 1 (326) and an upright clamping seat (327), wherein the base 1 (321) is arranged at the upper front end of the platform 1 (31), and the upper side of the base 1 (321) is provided with two symmetrically distributed limiting columns (322) and two symmetrically distributed electro-hydraulic Push rod 2 (325), the telescopic end of the electro-hydraulic push rod 2 (325) is provided with a pressure seat 1 (326), the upper front end of the platform 1 (31) is provided with two symmetrically distributed electro-hydraulic push rods 1 (323) and two symmetrically distributed upright clamping seats (327), the telescopic end of the electro-hydraulic push rod 1 (323) is provided with an intercepting seat (324), and the input ends of the electro-hydraulic push rod 1 (323) and the electro-hydraulic push rod 2 (325) are both electrically connected to the output end of the controller (6).

4. The front frame robot automatic welding workstation according to claim 1, characterized in that: The bumper fixing assembly (33) comprises a second base (331), a limiting clamping seat (332) and a vertical limiting frame (333); the second base (331) is arranged at the upper rear end of the platform (31); and the upper side of the second base (331) is provided with two symmetrically distributed limiting clamping seats (332) and two symmetrically distributed vertical limiting frames (333).

5. The front frame robot automatic welding workstation according to claim 2, characterized in that: The frame side panel welding tool (4) comprises a second platform (41), a placement seat (42), a third electro-hydraulic push rod (43), a second pressure seat (44), a first support seat (45), a fourth electro-hydraulic push rod (46) and a third pressure seat (47), wherein the second platform (41) is located at the front left end of the moving track (1), two placement seats (42) are provided on the upper side of the second platform (41), and a plurality of evenly distributed third electro-hydraulic push rods (43), The telescopic ends of the supporting card seat 1 (45), the electro-hydraulic push rod 4 (46), and the electro-hydraulic push rod 3 (43) are all provided with a pressure seat 2 (44), and the telescopic ends of the electro-hydraulic push rod 4 (46) are all provided with a pressure seat 3 (47). The input ends of the electro-hydraulic push rod 3 (43) and the electro-hydraulic push rod 4 (46) are all electrically connected to the output end of the controller (6). The electro-hydraulic push rod 3 (43), the supporting card seat 1 (45), and the electro-hydraulic push rod 4 (46) are all installed in coordination with the adjacent placement seat (42).

6. The front frame robot automatic welding workstation according to claim 2, characterized in that: The frame welding tool (5) comprises a support base (51), a rotating frame (52), a brake motor (53), a bumper limit assembly (54), a front frame connection side and a diesel engine mounting base limit assembly (55), a frame side plate limit assembly (56), a horizontal and vertical connection piece limit assembly (57) and a second support base (58), wherein the support base (51) is located at the front right end of the movable track (1), the interior of the support base (51) is rotatably connected to the rotating frame (52) via a rotating shaft, a brake motor (53) is provided on the left side of the support base (51), and the brake motor (53) is provided on the left side of the support base (51). The input end of the driving motor (53) is electrically connected to the output end of the controller (6), the output shaft of the brake motor (53) is fixedly connected to the rotating shaft on the left side, a bumper limit assembly (54) is provided at the upper left end of the rotating frame (52), a front frame connecting square and a diesel engine mounting base limit assembly (55) is provided at the middle left end of the rotating frame (52), frame side plate limit assemblies (56) are provided at the front and rear ends of the middle of the rotating frame (52), and a horizontal and vertical connecting piece limit assembly (57) and two symmetrically distributed supporting bases (58) are provided at the middle right end of the rotating frame (52).

7. The front frame robot automatic welding workstation according to claim 6, characterized in that: The bumper limiting assembly (54) comprises a connecting seat one (541), an electro-hydraulic push rod five (542), a pressure seat four (543) and a clamping column (544); the connecting seat one (541) is arranged at the upper left end of the rotating frame (52); two symmetrically distributed electro-hydraulic push rods five (542) and two symmetrically distributed clamping columns (544) are arranged on the upper side of the connecting seat one (541); the input end of the electro-hydraulic push rod five (542) is electrically connected to the output end of the controller (6); and the telescopic end of the electro-hydraulic push rod five (542) is provided with a pressure seat four (543).

8. The front frame robot automatic welding workstation according to claim 6, characterized in that: The front frame connection side and diesel engine mounting base limiting assembly (55) comprises a connection seat 2 (551), an electro-hydraulic push rod 6 (552), a pressure seat 5 (553), a front frame connection side support card seat (554) and a diesel engine mounting base support card seat (555); the connection seat 2 (551) is arranged at the left end of the middle part of the rotating frame (52); the upper side of the connection seat 2 (551) is provided with a front frame connection side support card seat (554), a diesel engine mounting base support card seat (555) and three symmetrically distributed electro-hydraulic push rods 6 (552); the input ends of the electro-hydraulic push rods 6 (552) are electrically connected to the output ends of the controller (6); the telescopic ends of the electro-hydraulic push rods 6 (552) are provided with pressure seats 5 (553); the front frame connection side support card seat (554) and the diesel engine mounting base support card seat (555) are both installed in coordination with the adjacent pressure seats 5 (553).

9. The front frame robot automatic welding workstation according to claim 6, characterized in that: The frame side plate limiting assembly (56) comprises a contact card seat (561), an electro-hydraulic push rod seven (562) and a pressure seat six (563), wherein the contact card seat (561) is symmetrically arranged at the front and rear ends of the middle part of the rotating frame (52), and two symmetrically distributed electro-hydraulic push rods seven (562) are arranged at the upper end of the contact card seat (561), and the input end of the electro-hydraulic push rod seven (562) is electrically connected to the output end of the controller (6), and the telescopic end of the electro-hydraulic push rod seven (562) is provided with a pressure seat six (563).

10. The front frame robot automatic welding workstation according to claim 6, characterized in that: The horizontal and vertical connecting member limit assembly (57) comprises a connecting seat three (571), an electro-hydraulic push rod eight (572) and a pressure seat seven (573). The connecting seat three (571) is arranged at the right end of the middle part of the rotating frame (52). The bottom wall of the connecting seat three (571) is provided with two symmetrically distributed electro-hydraulic push rods eight (572). The input ends of the electro-hydraulic push rods eight (572) are electrically connected to the output ends of the controller (6), and the telescopic ends of the electro-hydraulic push rods eight (572) are provided with pressure seats seven (573).

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