A special vehicle carriage frame processing system

Abstract

The present invention discloses a special vehicle carriage frame processing system, which mainly relates to the field of carriage frame welding. It includes a positioning and conveying mechanism, a pushing mechanism, a feeding mechanism, a welding module, a feeding slide of the feeding mechanism, a lifting platform, a mounting seat, and a swing frame. The swing frame has a 90-degree swing stroke and has a material picking stroke position and a feeding stroke position. A manipulator for grabbing a secondary reinforcement rod is installed at the end of the swing frame. The lifting platform has an upper loading position and a lower loading position. When the swing frame is located at the loading stroke position, the secondary reinforcement rod grabbed by the manipulator corresponds to the processing station, and when the lifting platform is located at the upper loading position, the secondary reinforcement rod is above the main reinforcement rod, and when the lifting platform is located at the lower loading position, the secondary reinforcement rod is below the main reinforcement rod. The beneficial effect of the present invention is that the secondary reinforcement rods can be welded to both sides of the main reinforcement rod to obtain a more solid carriage frame.

Description

Technical Field

[0001] The invention relates to the field of carriage frame welding, in particular to a special-purpose vehicle carriage frame processing system. Background Art

[0002] In order to ensure the strength of the trailer compartment, a steel structure frame is often used for internal support, and the compartment panels are welded on the frame or fixed by other means. Some cold chain compartments also need to add insulation materials inside the compartment panels. The steel structure compartment frame is an important part of the truck compartment, and its structural design is crucial to ensure the load-bearing capacity and durability of the compartment. The existing processing of the compartment frame mostly relies on manual work, and a small number of large factories have realized automated welding operations.

[0003] Due to its large size, the carriage frame is usually assembled and welded after the bottom frame, side frame and top frame are processed separately. The structure of the bottom frame and side frame generally adopts a grid structure with multiple secondary ribs welded on double or single main ribs. When welding, the connecting parts need to be welded one by one. The existing processing methods and conditions can only meet the requirements of fixing the secondary ribs on the same side of the main ribs, that is, both are fixed on the outside or inside. Under this structure, when the secondary ribs and main ribs of the frame are unevenly stressed, the stress is concentrated at the intersection. The support capacity of the frame is limited by welding alone, and it is difficult to improve the existing technology in this regard. Summary of the invention

[0004] The purpose of the present invention is to provide a special vehicle carriage frame processing system, which can weld secondary reinforcement rods to both sides of the main reinforcement rod respectively to obtain a more solid carriage frame.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A special vehicle carriage frame processing system, comprising:

[0007] A positioning and conveying mechanism is configured to convey the main reinforcement rod in a straight line and in a directional manner, and a processing station is arranged on the positioning and conveying mechanism;

[0008] The pushing mechanism is two and symmetrically arranged relative to the processing station, and the pushing mechanism includes a circular rotating pushing belt, and the gap of the pushing belt is used to clamp the secondary reinforcement rod and push it in parallel to the main reinforcement rod;

[0009] The feeding mechanism comprises a feeding slide with a straight horizontal feeding stroke in the width direction of the relative positioning conveying mechanism, the feeding slide is provided with a lifting platform with a lifting stroke, a mounting seat is fixed on the top of the lifting platform, a swing frame is rotatably installed on the top of the mounting seat, the swing frame has a 90-degree swing stroke, and the swing frame has a material picking stroke position and a material loading stroke position based on its swing stroke, the swing frame is horizontal under the material picking stroke position, and is upright under the material loading stroke position, and a manipulator for grabbing the secondary rib rod is installed at the end of the swing frame, and based on the lifting stroke of the lifting platform, the lifting platform has an upper loading position and a lower loading position, when the swing frame is located at the loading stroke position, the secondary rib rod grabbed by the manipulator corresponds to the processing position, and when the lifting platform is located at the upper loading position, the secondary rib rod grabbed by the manipulator is above the main rib rod, and when the lifting platform is located at the lower loading position, the secondary rib rod grabbed by the manipulator is below the main rib rod;

[0010] The welding module includes a plurality of welding guns, which perform welding operations on the top surface or the bottom surface of the main reinforcement rod at the processing station.

[0011] A belt conveyor is provided on one side of the feeding mechanism, and the belt conveyor includes a conveyor belt. A positioning frame symmetrical with respect to the width direction of the conveyor belt is provided at one end of the conveyor belt close to the feeding mechanism, and the positioning frame has a right-angle internal angle structure. The internal angles of the two positioning frames correspond to each other, and the spacing between the two positioning frames corresponds to the length of the secondary reinforcement rod. When the two ends of the secondary reinforcement rod are located in the internal angle of the positioning frame on the same side, the secondary reinforcement rod corresponds to the grabbing position of the manipulator when the swing frame is in the material picking stroke position.

[0012] The pushing mechanism comprises two upright pulleys arranged in parallel, the circumference of the upright pulleys is vertically arranged, the push belt is wound around the two upright pulleys, the two push belts rotate in opposite directions, and the inner belt surface spacing of the two push belts is adapted to the thickness of the secondary rib rod.

[0013] The feeding mechanism comprises a relatively fixedly installed base frame, a feeding guide rail extending vertically and horizontally relative to the length direction of the positioning conveying mechanism is fixedly installed on the base frame, a feeding slider is slidably matched on the feeding guide rail, the feeding slide is fixed on the feeding slider, a feeding screw is provided below the base frame, a nut is matched on the feeding screw, a connecting frame is fixed on the nut, a strip-shaped through hole parallel to the feeding guide rail is opened on the base frame, the connecting frame passes through the strip-shaped through hole and the top end of the connecting frame is fixed on the feeding slide;

[0014] and / or,

[0015] An upright frame is fixedly mounted on the loading slide, a lifting guide rail and a lifting cylinder are fixed on the frame, a lifting cylinder rod matched with the lifting cylinder is provided at the top end, a lifting slide block is matched with the lifting guide rail, and the top end of the lifting cylinder rod and the lifting slide block are both fixed on the lifting platform;

[0016] and / or,

[0017] A U-shaped mounting seat is fixedly installed on the top of the lifting platform, a mounting shaft is fixed on the top of the mounting seat, a shaft sleeve is rotatably installed on the outside of the mounting shaft through a bearing, a half gear is provided in the middle of the shaft sleeve, and a swing gear driven by a motor is rotatably installed in the middle of the mounting seat, the swing gear is meshed with the half gear, so that the swing frame has a swing stroke of 90 degrees.

[0018] The manipulator includes a material picking cylinder fixed at the end of a swing frame, the material picking cylinder is a double-headed cylinder, and both ends of the material picking cylinder are respectively provided with material picking cylinder rods that cooperate with the material picking cylinder for telescopic operation, and a grab frame is fixed to the outer end of the material picking cylinder rod away from the material picking cylinder, and the grab frames on both sides have a grabbing action of approaching or moving away from each other based on the telescopic operation of the material picking cylinder rod, and a rubber strip is fixed to the wider side of the grab frame.

[0019] The positioning and conveying mechanism includes a plurality of fixed support shafts arranged in a linear direction, and fixed support wheels are fixed on the fixed support shafts at positions corresponding to the main ribs in the skeleton. Positioning ring grooves for placing the main ribs are provided on the circumferential surfaces of the fixed support wheels, and the fixed support shafts are actively rotated based on motor drive.

[0020] The positioning and conveying mechanism is provided with a movable frame at one end close to the material removal side, and the movable frame has a follow-up stroke that can approach or move away from one end of the frame. The movement of the movable frame is linked to the rotation of the fixed support shaft. The movable frame is provided with a movable wheel axle. The movable wheel axle is provided with a movable support wheel at the position of the main reinforcement rod in the skeleton. The movable support wheel is supported on the bottom surface of the main reinforcement rod. A limiting strip is also fixed on the movable frame. The limiting strip extends horizontally along the width direction of the positioning and conveying mechanism, and the limiting strip is used to contact the front end of the main reinforcement rod.

[0021] A movable slide is fixed under the movable frame, and a movable rail and a rack installed in parallel are provided under the movable frame. The length direction of the movable rail is consistent with the length direction of the positioning and conveying mechanism. One end of the movable rail is arranged near the processing station. A movable slider is slidably fitted on the movable rail, and the top of the movable slider is fixed on the bottom surface of the movable slide. A movable motor is also installed on the movable slide, and a movable gear is installed on the output shaft of the movable motor. The movable gear is rotatably installed under the movable slide, and the movable gear is meshed with the rack.

[0022] A pressing mechanism is provided on the side of the processing station close to the movable frame, and the pressing mechanism includes mounting cylinders symmetrically arranged on both sides of the main rib rod, and two pressing shafts arranged in parallel up and down are provided between the mounting cylinders, and pressing wheels are rotatably installed on the pressing shafts corresponding to the positions of the main rib rods, and vertical inner rods are provided at both ends of the pressing shaft, and the inner rod is located in the mounting cylinder, and through holes for the inner rod to pass through are provided on the upper and lower end surfaces of the mounting cylinder, and a compression spring is sleeved on the outside of the inner rod, and an inner sliding block that slides up and down with the mounting cylinder is provided on the inner end of the inner rod, and two strip holes are provided on the inner vertical end surface of the mounting cylinder close to the frame, and the strip holes are symmetrically arranged up and down relative to the main rib rod.

[0023] The processing station is provided with a first supporting wheel group and a second supporting wheel group arranged on both sides of the relative positioning conveying mechanism, the first supporting wheel group includes a first wheel frame, on which an upper roller, a clamping roller and a lower roller arranged in parallel from top to bottom are rotatably installed, the axial directions of the upper roller, the lower roller and the clamping roller are consistent with the length direction of the main rib rod, the top side circumference of the clamping roller is tangent to the top surface of the main rib rod, the bottom side circumference of the clamping roller is tangent to the bottom surface of the main rib rod, the minimum spacing between the upper roller and the clamping roller is adapted to the width of the secondary rib rod, and the minimum spacing between the lower roller and the clamping roller is adapted to the width of the secondary rib rod;

[0024] The second supporting wheel group includes a second wheel frame, on which upper rollers, clamping rollers and lower rollers are also installed, and the number of installed rollers is the same as or different from that of the first supporting wheel group.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] When using this system to process the side frame, bottom frame, and top frame of the frame, it is possible to weld and fix the secondary reinforcement bars alternately on the inside and outside of the main reinforcement bars, so that when the reinforcement bars are subjected to uneven force, the tolerance and strength of the entire frame can be greatly improved. In addition, the assembly and alignment are automated, achieving efficient production and improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram (the swing frame is in the loading stroke position, and the lifting platform is in the upper loading position).

[0028] Figure 2 It is an overall schematic diagram (the swing frame is located in the material taking stroke position, and the pushing mechanism pushes the secondary reinforcement rod into place).

[0029] Figure 3 yes Figure 1 Top view of the .

[0030] Figure 4 It is a schematic diagram of grabbing the secondary reinforcement rod according to the present invention.

[0031] Figure 5 It is a schematic diagram of loading the secondary reinforcement rod according to the present invention.

[0032] Figure 6 It is a schematic diagram of component disassembly of the feeding mechanism of the present invention.

[0033] Figure 7 It is a schematic diagram of the directional conveying mechanism and matching components of the present invention.

[0034] Figure 8 The present invention Figure 7 View in incoming direction.

[0035] Fig. 9 It is a schematic diagram of the internal structure of the installation cylinder of the present invention.

[0036] Fig.10 It is a schematic diagram of the grabbing action of the feeding mechanism of the present invention.

[0037] Numbers shown in the accompanying drawings:

[0038] 1. Positioning conveying mechanism; 2. Fixed supporting shaft; 3. Fixed supporting wheel; 4. Positioning ring groove; 5. Moving frame; 6. Moving wheel shaft; 7. Moving supporting wheel; 8. Limiting strip; 9. Moving track; 10. Rack; 11. Moving slide; 12. Mounting cylinder; 13. Compression shaft; 14. Compression wheel; 15. Inner rod; 16. Compression spring; 17. Inner slide block; 18. Strip hole; 19. First supporting wheel group; 20. Second supporting wheel group; 21. Upper roller; 22. Clamping roller; 23. Lower roller; 24. Pushing mechanism ; 25. Push belt; 26. Base frame; 27. Feeding guide rail; 28. Feeding slide; 29. ​​Feeding screw; 30. Connecting frame; 31. Strip through hole; 32. Vertical frame; 33. Lifting guide rail; 34. Lifting cylinder; 35. Lifting platform; 36. Mounting seat; 37. Mounting shaft; 38. Bushing; 39. Half gear; 40. Swinging gear; 41. Swinging frame; 42. Removing cylinder; 43. Removing cylinder rod; 44. Grabbing frame; 45. Rubber strip; 46. Conveyor belt; 47. Positioning frame; 48. Inclined plate. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0040] like Figure 1-10As shown (since the welding gun is a common device, it is not shown in the figure), this processing system is mainly used to process the side frames and top frames of the car body frame. Some cars include a bottom frame 26, while some cars use an integrated bottom plate. Therefore, if there is a bottom frame 26, the bottom frame 26 can also be processed.

[0041] This example uses the processing of side frames as an example. According to the usual practice, the side frames use two parallel main reinforcement bars (extending in the same direction as the length of the car), and the secondary reinforcement bars with poor verticality are welded equidistantly on the main reinforcement bars to obtain the grid frame sheet, which is then fixed to the car frame in the subsequent assembly. The main reinforcement bars are made of I-beams or square steels, and the secondary reinforcement bars are mostly made of channel steels, with the grooved surface on one side. The groove walls on both sides of the channel steel are used for welding with the main reinforcement bars, so the welding surface is large and the fixation is reliable.

[0042] The existing processing method, if double-sided fixation is used, is very difficult and inefficient. Therefore, double-sided fixation is not used based on cost. Instead, single-sided fixation is used on the main reinforcement rod. Under this structure, when the forces on the main reinforcement rod and the secondary reinforcement rod are reversed or uneven, the stress is concentrated at the welding position, and it is difficult to break through the strength.

[0043] Structurally, the system includes a positioning and conveying mechanism 1, which is used to convey the main reinforcement rods in a directional manner and maintain the spacing and position of the main reinforcement rods during transportation, so as to facilitate the positioning and cooperation with the auxiliary reinforcement rods for welding.

[0044] The positioning and conveying mechanism 1 includes a fixedly installed frame, which is symmetrically arranged on the left and right. The frame is provided with a plurality of fixed support shafts 2 along its length direction, and the fixed support shaft 2 is located between the frames on both sides. The fixed support shaft 2 is rotatably installed relative to the frame, and a fixed support wheel 3 is installed on the fixed support shaft 2. The fixed support wheel 3 fixed on a fixed support shaft 2 can be one or more. Based on the side frame processed in this example, a double main rib structure is adopted. Therefore, fixed support wheels 3 are respectively installed at both ends of a fixed support shaft 2 in this example. The spacing of the fixed support wheels 3 corresponds to the spacing of the two main ribs. A positioning ring groove 4 for placing the main ribs is provided on the circumferential surface of the fixed support wheel 3. The cross-section of the positioning ring groove 4 is trapezoidal, and the bottom of the positioning ring groove 4 is adapted to the width of the main ribs. The main ribs are loaded into the positioning ring groove 4 on the fixed support wheel 3 (robot or manual loading can be used), which can constrain the directional transportation of the main ribs.

[0045] Part or all of the fixed support shafts 2 are driven by a motor, and at least the support shafts located at both ends of the frame are driven by a motor, so as to push the main reinforcement rods to one end for transportation.

[0046] A movable frame 5 is provided at the end of the frame close to (the end away from the material source), and the movable frame 5 has a follow-up stroke that approaches or moves away from one end of the frame, and the follow-up stroke is a linear stroke and is consistent with the length direction of the positioning and conveying mechanism 1. A movable wheel axle 6 is provided on the movable frame 5, and the movable wheel axle 6 and the fixed wheel axle are located on the same horizontal plane and are arranged in parallel. Both ends of the movable wheel axle 6 are provided with movable supporting wheels 7 corresponding to the positions of the main ribs, and the shape and structure of the movable supporting wheels 7 are consistent with the fixed supporting wheels 3. A limiting strip 8 is also fixed on the movable frame 5, and the limiting strip 8 is horizontally arranged and extends relative to the width direction of the frame. The limiting strip 8 is used to position and align two ribs at one end of the main ribs so that the position of the ribs matches the processing station.

[0047] A processing station is arranged at the edge of the frame close to the movable frame 5, and the processing station is used to assemble and weld the secondary reinforcement rods and the main reinforcement rods at this position.

[0048] A moving rail 9 fixedly installed relative to the ground is provided at the bottom of the moving frame 5. The moving rails 9 are two and arranged in parallel. The length direction of the moving rails 9 is consistent with the length direction of the positioning and conveying mechanism 1. One end of the moving rail 9 is arranged near the processing station. A moving slider is slidably fitted on the moving rail 9. A moving slide 11 is fixed at the bottom of the moving frame 5. The top of the moving slider is fixed to the bottom surface of the moving slide 11. A moving motor is also installed on the moving slide 11. A moving gear is installed on the output shaft of the moving motor. The moving gear is rotatably installed at the bottom of the moving slide 11. A rack 10 is arranged in parallel between the two moving rails 9. The moving gear is meshed with the rack 10 to realize the driving of the moving slide 11 to move linearly, thereby obtaining the follow-up stroke of the moving frame 5.

[0049] A pressing mechanism is provided on one side of the processing station close to the mobile frame 5, and the pressing mechanism includes mounting cylinders 12 symmetrically arranged on both sides of the main ribs, the mounting cylinders 12 are arranged vertically, and two pressing shafts 13 arranged in parallel are arranged between the mounting cylinders 12, and the pressing shafts 13 are rotatably installed with pressing wheels 14 at the positions corresponding to the main ribs. During specific processing, the two pressing shafts 13 are respectively arranged above and below the main ribs, and the main ribs are pressed by the pressing wheels 14. The main ribs near the welding are stabilized and fixed. Both ends of the compression shaft 13 are provided with vertical inner rods 15, and the inner rods 15 of the upper and lower compression shafts 13 extend in opposite directions. The inner rod 15 is located in the mounting tube 12, and the upper and lower end surfaces of the mounting tube 12 are provided with through holes for the inner rod 15 to pass through. The outer side of the inner rod 15 is sleeved with a compression spring 16, and the compression spring 16 has an elastic force to bring the two compression shafts 13 closer to each other. The inner end of the inner rod 15 is provided with an inner slider 17 that slides up and down with the mounting tube 12. Two strip holes 18 are symmetrically provided on the inner vertical end surface of the mounting tube 12 close to the frame. The strip holes 18 are symmetrically arranged with respect to the main rib rod (located on the fixed support wheel 3). The compression shaft 13 passes through the strip hole 18 and cooperates with the axial mouth of the strip hole 18. Based on the strip hole 18, the elastic lifting range of the compression shaft 13 is constrained.

[0050] Based on the above structure, the pressing wheel 14 can press the main rib rods above and below the main rib rods, thereby stabilizing the main rib rods near the processing and assisting the stability of the processing process. After the processing is completed, the secondary rib rods have been welded and fixed on the main rib rods, and the pressing wheel with elastic lifting can easily roll over the secondary rib rods without affecting the movement of the processed side frame.

[0051] A first supporting wheel group 19 and a second supporting wheel group 20 are provided on both sides of the frame respectively, and the first supporting wheel group 19 and the second supporting wheel group 20 are used for supporting and conveying the auxiliary rib rod from below and limiting the position from above (to prevent warping) when the auxiliary rib rod cooperates with the main rib rod. The first supporting wheel group 19 includes a first wheel frame, and the second supporting wheel group 20 includes a second wheel frame. A plurality of upper rollers 21, clamping rollers 22 and lower rollers 23 are rotatably mounted on the first wheel frame. The upper rollers 21, clamping rollers 22 and lower rollers 23 are arranged side by side from top to bottom, and the axial directions of the upper rollers 21, lower rollers 23 and clamping rollers 22 are consistent with the length direction of the frame.

[0052] The clamping roller wheel 22 is arranged at the same height as the main rib rod on the fixed supporting wheel 3, and the top side circumference of the clamping roller wheel 22 is tangent to the top surface of the main rib rod, and the bottom side circumference of the clamping roller wheel 22 is tangent to the bottom surface of the main rib rod, so that the clamping roller wheel 22 can support and position the bottom surface of the auxiliary rib rod fixed on the upper side of the main rib rod, and can also position the top surface of the auxiliary rib rod fixed on the lower side of the main rib rod.

[0053] The upper rollers 21 are arranged in parallel above the clamping rollers 22, and the minimum distance between the upper rollers 21 and the clamping rollers 22 is adapted to the width of the secondary rib rod.

[0054] The lower rollers 23 are arranged in parallel below the clamping rollers 22, and the minimum distance between the lower rollers 23 and the clamping rollers 22 is adapted to the width of the secondary rib rods;

[0055] Therefore, when the secondary rib rod is fixed on the upper side of the main rib rod placed flat on the fixed support wheel 3, the upper and lower end faces of the secondary rib rod are guided, supported and positioned by the upper roller 21 and the clamping roller 22. When the secondary rib rod is fixed on the lower side of the main rib rod, the upper and lower end faces of the secondary rib rod are clamped, rolled, guided and positioned by the clamping roller 22 and the lower roller 23. No matter which side of the main rib rod the secondary rib rod is loaded on, the loading and processing of the secondary rib rod are coordinated to achieve clamping and positioning.

[0056] The second wheel frame is equipped with an upper roller 21, a clamping roller 22 and a lower roller 23 corresponding to the structure and position of the first supporting roller group 19. In this example, the first wheel frame is far away from the loading position of the secondary rib rod, and is used to dock the loading of the secondary rib rod on the opposite side. Four rollers of each type are designed. The second supporting roller group 20 is close to the side of the loading position of the secondary rib rod, and it is also necessary to make way for other equipment, and this position only needs to assist in the positioning and conveying structure of loading. There are two rollers of each type. Through the cooperation of the first supporting roller group 19 and the second supporting roller group 20 located on both sides of the main rib rod at the processing station, when the secondary rib rod is loaded, the two ends of the secondary rib rod can be better supported and assisted in conveying.

[0057] Two parallel pushing mechanisms 24 are provided on the side of the second roller group 20 away from the frame, and the pushing mechanisms 24 include two parallel upright pulleys, the circumference of the upright pulleys is vertically arranged, and the two pushing mechanisms 24 are symmetrically arranged relative to the processing station, one of the upright pulleys is driven by a motor, and a pushing belt 25 is wound around the outside of the two upright pulleys. The inner belt surface spacing of the push belts 25 of the two pushing mechanisms 24 is adapted to the thickness of the secondary rib rod, and is used to squeeze the secondary rib rod between the two and push it toward the processing station.

[0058] A loading mechanism is provided at one end of the pushing mechanism 24 away from the frame and the main reinforcing rod, and the loading mechanism is used to load the auxiliary reinforcing rod at the corresponding processing station.

[0059] The feeding mechanism includes a relatively fixed base frame 26, on which a feeding guide rail 27 extending perpendicularly and horizontally relative to the length direction of the frame is fixedly installed, and a feeding slider is slidably fitted on the feeding guide rail 27, and a feeding slide 28 is fixed on the feeding slider, and a feeding screw 29 is provided below the base frame 26, and a nut is fitted on the feeding screw 29, and a connecting frame 30 is fixed on the nut, and a strip through hole 31 parallel to the feeding guide rail 27 is opened on the base frame 26, and the connecting frame 30 passes through the strip through hole and the top of the connecting frame 30 is fixed on the feeding slide 28, and a feeding stroke of the feeding slide 28 approaching or moving away from the frame is obtained by guiding the feeding guide rail 27 and driving the feeding screw 29.

[0060] An upright frame 32 is fixedly installed on the loading slide 28, and a lifting guide rail 33 and a lifting cylinder 34 are fixed on the upright frame 32. The top of the lifting cylinder 34 is provided with a lifting cylinder rod matched with it, and a lifting platform 35 is fixed on the top of the lifting cylinder rod. The lifting guide rail 33 is matched with a lifting slider, and the lifting slider is fixed on the lifting platform 35 to guide and drive the lifting stroke of the lifting platform 35.

[0061] A U-shaped mounting seat 36 is fixedly installed on the top of the lifting platform 35, and a mounting shaft 37 is fixed on the top of the mounting seat 36. A shaft sleeve 38 is rotatably installed on the outside of the mounting shaft 37 through a bearing. A half gear 39 is provided in the middle of the shaft sleeve 38. A swing gear 40 is rotatably installed in the middle of the mounting seat 36. The swing gear 40 is meshed with the half gear 39. A swing motor is fixed on the mounting seat 36, and the output shaft of the swing motor is connected to the swing gear 40 to realize the transmission and drive of the rotation of the shaft sleeve 38. A swing frame 41 is fixed on the shaft sleeve 38, and the swing frame 41 has a swing stroke of 90 degrees. The swing frame 41 has a material picking stroke position and a material loading stroke position based on its swing stroke. The swing frame 41 is horizontally arranged under the material picking stroke position, and is upright under the material loading stroke position.

[0062] Two groups of feeding cylinders 42 are fixed at the end of the swing frame 41. The feeding cylinders 42 are double-headed cylinders. Both ends of the feeding cylinders 42 are provided with feeding cylinder rods 43 that are telescopically matched with the feeding cylinders 42. A grab frame 44 is fixed to the outer end of the feeding cylinder rod 43 away from the feeding cylinder 42. The grab frames 44 on both sides have a grasping action of approaching or moving away from each other based on the telescopic movement of the feeding cylinder rod 43. The grab frame 44 is trapezoidal and is used to obtain a longer grasping range. The grab frame 44 is vertically arranged relative to the feeding cylinder rod 43. A rubber strip 45 is fixed to the wider side of the grab frame 44, which can increase the frictional force of contact with the secondary rib rod. Through the joint grasping operation of the two grab frames 44, a sufficient and firm grasping effect can be obtained on the secondary rib rod to achieve material grasping.

[0063] Based on the lifting stroke of the lifting platform 35, the lifting platform 35 has an upper loading position and a lower loading position;

[0064] When the grab frame 44 grabs the secondary rib rod, the swing frame 41 is in its loading stroke position (that is, the swing frame 41 is in an upright state), and when the lifting platform 35 is in the upper loading position, the position of the secondary rib rod grabbed by the grab frame 44 corresponds to the processing station, and the bottom surface of the secondary rib rod grabbed by the grab frame 44 corresponds to the top surface of the main rib rod located on the fixed support wheel 3. When the loading slide 28 moves toward the frame, the secondary rib rod is moved closer to the main rib rod and finally placed on the top surface of the main rib rod.

[0065] When the lifting platform 35 is located at the lower loading position, the top surface of the secondary rib rod grabbed by the grab frame 44 corresponds to the bottom surface of the main rib rod; when the loading slide 28 moves toward the frame, the secondary rib rod is moved closer to the main rib rod and finally placed on the bottom surface of the main rib rod.

[0066] Based on the above-mentioned actions, the secondary ribs are grabbed by the feeding mechanism and matched above or below the main ribs. Therefore, when the lifting platform 35 is alternately positioned at the upper loading position and the lower unloading position in combination with each feeding of the secondary ribs, the secondary ribs can be alternately welded to the two sides of the main ribs, thereby obtaining a more solid side frame structure.

[0067] A belt conveyor is provided on one side of the feeding mechanism, and the belt conveyor includes a conveyor belt 46. One end of the conveyor belt 46 is arranged close to the feeding mechanism, and the end of the conveyor belt 46 close to the feeding mechanism is provided with a positioning frame 47 symmetrical with respect to its width direction. The positioning frame 47 has a right-angle inner angle structure, and the inner angles of the two positioning frames 47 correspond to each other, and the spacing between the two positioning frames 47 corresponds to the length of the secondary rib rod. When the swing frame 41 is located in the grabbing stroke position, one end of the conveyor belt 46 is located below the swing frame 41. When the two ends of the secondary rib rod are located in the inner angle of the positioning frame 47 on the same side, the secondary rib rod corresponds to the material picking cylinder 42 above it up and down, and the rubber strip 45 can be located on both sides of the secondary rib rod by lifting and lowering to complete the grabbing action.

[0068] An end of the positioning frame 47 away from the feeding mechanism is provided with an outwardly expanded inclined plate 48, and the inclined plates 48 on both sides form a bell mouth, which is convenient for guiding the secondary reinforcement rod to between the two positioning frames 47 during transportation.

[0069] When loading the secondary reinforcement rods on the conveyor belt 46, pay attention to leaving a certain distance to facilitate material removal. At the same time, let the notch of the secondary reinforcement rod (channel steel) fall downward onto the conveyor belt 46 when loading. After being grabbed by the grab frame 44, the notch of the secondary reinforcement rod can be moved to one side through the 90-degree swing stroke of the swing frame 41, so that the end faces of the groove walls on the upper and lower sides can be easily contacted and welded with the main reinforcement rods.

[0070] A welding module is provided on the workstation, and the welding module includes 2 or 4 welding guns, which are arranged at the intersection of the secondary reinforcement rod and the main reinforcement rod on the processing station. The welding gun can be controlled by swinging the welding gun to achieve welding at the intersection above and below the main reinforcement rod. Four welding guns can also be arranged to correspond to the intersection above and below the main reinforcement rod, respectively, so as to start welding according to the position of the secondary reinforcement rod. This example is not limited to this example, and based on the automatic mechanical alignment, the solution of manual welding fixation is not excluded.

[0071] Based on the above structure, the workflow and processing method of this system are as follows:

[0072] S1 loads two main ribs onto the fixed supporting wheels 3 on both sides respectively, places the main ribs into the positioning ring grooves 4, and pushes the main ribs by pushing or rotating the fixed supporting wheels 3;

[0073] S2: The mobile frame 5 is arranged close to the processing station. When the main reinforcement rod is pushed to one end of the main reinforcement rod against the limit bar 8, the area where the main reinforcement rod is located at the processing station is the first position where the secondary reinforcement rod needs to be welded.

[0074] S3 The secondary ribs (channel steels cut in equal lengths, with the notches at the bottom) on the conveyor belt 46 are transported to one side of the feeding mechanism at intervals. When the swing frame 41 is in its material-retrieving stroke position (the swing frame 41 is in a horizontal state), the gripping is achieved by lifting. During the gripping, the rubber strips 45 on the bottom side of the gripping frame 44 are respectively located on both sides of the secondary ribs. The material-retrieving cylinder rod 43 retracts to achieve the gripping of the secondary ribs by the gripping frame 44. After the gripping, the swing frame 41 swings upward to the material-retrieving stroke position (i.e., the upright state).

[0075] S4: adjusting the height of the lifting platform 35 so that the bottom surface of the secondary reinforcement rod corresponds to the top surface of the main reinforcement rod, or so that the top surface of the secondary reinforcement rod corresponds to the bottom surface of the main reinforcement rod;

[0076] S5: the loading slide 28 moves toward the frame, driving the grabbed secondary rib rod to approach the main rib rod until one end of the secondary rib rod is located outside the two pushing mechanisms 24;

[0077] S6 The pushing mechanism 24 clamps the secondary rib rod by the rotation of the pushing belt 25, and at the same time the material taking cylinder rod 43 retracts to make the grab frame 44 release the secondary rib rod; the pushing mechanism 24 continues to clamp the secondary rib rod and push the material toward the main rib rod until the secondary rib rod is centered relative to the main rib rod. During the pushing process, the secondary rib rod is supported and positioned up and down by the first supporting wheel group 19 and the second supporting wheel group 20 located on both sides of the main rib rod;

[0078] S7: Weld and fix the cross-joint positions of the main reinforcement rod and the secondary reinforcement rod;

[0079] S8 The fixed support wheel 3 rotates to drive the main reinforcement rod fixed with the secondary reinforcement rod to be pushed toward the direction of the moving frame 5, and the moving frame 5 also moves in the same direction, so that the moving frame 5 moves with the main reinforcement rod at the front end of the main reinforcement rod to support the front end of the main reinforcement rod;

[0080] In the welding of two adjacent secondary reinforcement rods, the moving frame 5 stops after moving a distance d, and then the pushing of the fixed support wheel 3 also stops. The distance d corresponds to the preset spacing between adjacent secondary reinforcement rods, so that the position of the next secondary reinforcement rod to be welded on the main reinforcement rod is correspondingly located on the processing station;

[0081] During the pushing of the main rib rod, the pressing wheel 14 can be raised and lowered elastically, adaptively rolling over the position where the secondary rib rod is welded, and maintaining the clamping and stability of the main rib rod near the processing station;

[0082] The above steps s3-s8 are a circulation unit for welding the secondary ribs once. Steps s3-s8 are repeated multiple times until all the secondary ribs are welded, and the lifting platform 35 in adjacent circulation units is respectively located at the upper loading position and the lower loading position, so that the secondary ribs are alternately welded on both sides of the main ribs.

[0083] In the side frame obtained through the above steps, the main reinforcement rods are alternately welded and fixed to the auxiliary reinforcement rods on the inner and outer sides, so that when only part of the reinforcement rods are stressed or the reinforcement rods are stressed unevenly, and the stress is concentrated at the reinforcement rod connection position, the force can not only be fixed by the welding points, but also dispersed by the reversely arranged auxiliary reinforcement rods. This breaks the limitation of relying only on welding points and greatly improves the tolerance and strength of the entire frame.

[0084] Based on the above structure and method, the improved skeleton can be automatically assembled and processed, completely automatically positioned, and simultaneously realize the alignment operation of the two surfaces, which greatly reduces costs and increases efficiency and greatly improves production capacity.

Claims

1. A special vehicle carriage frame processing system, characterized in that: include: A positioning and conveying mechanism (1) is configured to convey the main reinforcing bar in a straight line and in a directional manner, and a processing station is arranged on the positioning and conveying mechanism (1); The pushing mechanism (24) is two and symmetrically arranged relative to the processing station, the pushing mechanism (24) comprises a circular rotating pushing belt (25), the gap between the pushing belt (25) is used to clamp the secondary reinforcement rod and push it in parallel to the main reinforcement rod; The feeding mechanism comprises a feeding slide (28) having a straight horizontal feeding stroke in the width direction relative to the positioning conveying mechanism (1), the feeding slide (28) being provided with a lifting platform (35) having a lifting stroke, a mounting seat (36) being fixed at the top of the lifting platform (35), a swing frame (41) being rotatably mounted at the top of the mounting seat (36), the swing frame (41) having a 90-degree swing stroke, the swing frame (41) having a material taking stroke position and a material feeding stroke position based on its swing stroke, the swing frame (41) being horizontal at the material taking stroke position , the swing frame (41) is upright under the loading stroke position, a manipulator for grabbing the secondary rib rod is installed at the end of the swing frame (41), and based on the lifting stroke of the lifting platform (35), the lifting platform (35) has an upper loading position and a lower loading position, when the swing frame (41) is located at the loading stroke position, the secondary rib rod grabbed by the manipulator corresponds to the processing position, and when the lifting platform (35) is located at the upper loading position, the secondary rib rod grabbed by the manipulator is above the main rib rod, and when the lifting platform (35) is located at the lower loading position, the secondary rib rod grabbed by the manipulator is below the main rib rod; The welding module includes a plurality of welding guns, which perform welding operations on the top surface or the bottom surface of the main reinforcement rod at the processing station.

2. According to claim 1, a special vehicle carriage frame processing system is characterized in that: A belt conveyor is provided on one side of the feeding mechanism, the belt conveyor comprising a conveyor belt (46), a positioning frame (47) symmetrical with respect to the width direction of the conveyor belt (46) is provided at one end of the conveyor belt (46) close to the feeding mechanism, the positioning frame (47) having a right-angle inner corner structure, the inner corners of the two positioning frames (47) corresponding to each other, and the spacing between the two positioning frames (47) corresponding to the length of the secondary rib rod, when the two ends of the secondary rib rod are located within the inner corner of the positioning frame (47) on the same side, the secondary rib rod and the swing frame (41) correspond to the grasping position of the manipulator when they are located in the material picking stroke position.

3. According to claim 1, a special vehicle carriage frame processing system is characterized in that: The pushing mechanism (24) comprises two upright pulleys arranged in parallel, the circumference of the upright pulleys being arranged vertically, the pushing belt (25) being wound around the two upright pulleys, the two pushing belts (25) rotating in opposite directions, and the distance between the inner belt surfaces of the two pushing belts (25) being adapted to the thickness of the secondary reinforcement rod.

4. According to claim 1, a special vehicle carriage frame processing system is characterized in that: The feeding mechanism comprises a relatively fixedly mounted base frame (26), a feeding guide rail (27) extending vertically and horizontally relative to the length direction of the positioning conveying mechanism (1) being fixedly mounted on the base frame (26), a feeding slider being slidably matched on the feeding guide rail (27), the feeding slide (28) being fixed on the feeding slider, a feeding screw (29) being provided below the base frame (26), a nut being matched on the feeding screw screw (29), a connecting frame (30) being fixed on the nut, a strip-shaped through hole (31) being parallel to the feeding guide rail (27) being opened on the base frame (26), the connecting frame (30) passing through the strip-shaped through hole and the top end of the connecting frame (30) being fixed on the feeding slide (28); and / or, A vertical frame (32) is fixedly mounted on the loading slide (28), a lifting guide rail (33) and a lifting cylinder (34) are fixed on the frame (32), a lifting cylinder rod matched with the lifting cylinder (34) is provided at the top end, a lifting slide block is matched with the lifting guide rail (33), and the top end of the lifting cylinder rod and the lifting slide block are both fixed on the lifting platform (35); and / or, A U-shaped mounting seat (36) is fixedly mounted on the top of the lifting platform (35), a mounting shaft (37) is fixed on the top of the mounting seat (36), a shaft sleeve (38) is rotatably mounted on the outside of the mounting shaft (37) via a bearing, a half gear (39) is provided in the middle of the shaft sleeve (38), and a swing gear (40) driven by a motor is rotatably mounted in the middle of the mounting seat (36), the swing gear (40) is meshed with the half gear (39), so that the swing frame (41) has a swing stroke of 90 degrees.

5. According to claim 1, a special vehicle carriage frame processing system is characterized in that: The manipulator comprises a material picking cylinder (42) fixed at the end of a swing frame (41), the material picking cylinder (42) being a double-headed cylinder, and the two ends of the material picking cylinder (42) are respectively provided with material picking cylinder rods (43) that cooperate with the material picking cylinder (42) to be telescopically matched, and a grabbing frame (44) is fixed to the outer end of the material picking cylinder rod (43) away from the material picking cylinder (42), and the grabbing frames (44) on both sides have a grabbing action of approaching or moving away from each other based on the telescopic movement of the material picking cylinder rod (43), and a rubber strip (45) is fixed to the wider side of the grabbing frame (44).

6. A special vehicle carriage frame processing system according to claim 1, characterized in that: The positioning and conveying mechanism (1) comprises a plurality of fixed support shafts (2) arranged in a linear direction, fixed support wheels (3) being fixed on the fixed support shafts (2) at positions corresponding to main ribs in the frame, and positioning ring grooves (4) for accommodating the main ribs are provided on the circumference of the fixed support wheels (3), and the fixed support shafts (2) are actively rotated based on motor drive.

7. A special vehicle carriage frame processing system according to claim 6, characterized in that: A movable frame (5) is provided at one end of the positioning and conveying mechanism (1) close to the material removal side. The movable frame (5) has a follow-up stroke that moves closer to or farther from one end of the frame. The movement of the movable frame (5) is linked to the rotation of the fixed support shaft (2). A movable wheel shaft (6) is provided on the movable frame (5). A movable support wheel (7) is provided on the movable wheel shaft (6) corresponding to the position of the main reinforcement rod in the frame. The movable support wheel (7) is supported on the bottom surface of the main reinforcement rod. A limit strip (8) is also fixed on the movable frame (5). The limit strip (8) extends horizontally along the width direction of the positioning and conveying mechanism (1). The limit strip (8) is used to contact the front end of the main reinforcement rod.

8. A special vehicle carriage frame processing system according to claim 7, characterized in that: A movable slide (11) is fixed below the movable frame (5), and a movable rail (9) and a rack (10) are arranged in parallel below the movable frame (5). The length direction of the movable rail (9) is consistent with the length direction of the positioning and conveying mechanism (1). One end of the movable rail (9) is arranged near the processing station. A movable slider is slidably matched on the movable rail (9). The top of the movable slider is fixed on the bottom surface of the movable slide (11). A movable motor is also installed on the movable slide (11). A movable gear is installed on the output shaft of the movable motor. The movable gear is rotatably installed below the movable slide (11), and the movable gear is meshed with the rack (10).

9. A special vehicle carriage frame processing system according to claim 7, characterized in that: A pressing mechanism is provided on one side of the processing station close to the movable frame (5), the pressing mechanism comprising mounting cylinders (12) symmetrically arranged on both sides of the main rib rod, two pressing shafts (13) arranged in parallel up and down are provided between the mounting cylinders (12), the pressing shafts (13) are rotatably provided with pressing wheels (14) at the positions corresponding to the main rib rods, vertical inner rods (15) are provided at both ends of the pressing shafts (13), the inner rod (15) is located in the mounting cylinder (12), through holes for the inner rod (15) to pass through are provided on the upper and lower end surfaces of the mounting cylinder (12), a compression spring (16) is sleeved on the outside of the inner rod (15), an inner slider (17) which is slidably matched with the mounting cylinder (12) up and down is provided on the inner end of the inner rod (15), and two strip holes (18) are provided on the inner vertical end surface of the mounting cylinder (12) close to the frame, and the strip holes (18) are symmetrically arranged with respect to the main rib rod.

10. A special vehicle carriage frame processing system according to claim 1, characterized in that: The processing station is provided with a first supporting wheel group (19) and a second supporting wheel group (20) arranged on both sides of the relative positioning conveying mechanism (1), the first supporting wheel group (19) comprising a first wheel frame, on which an upper roller (21), a clamping roller (22) and a lower roller (23) are rotatably mounted and arranged in parallel from top to bottom, the axial directions of the upper roller (21), the lower roller (23) and the clamping roller (22) are consistent with the length direction of the main rib rod, the top side circumference of the clamping roller (22) is tangent to the top surface of the main rib rod, the bottom side circumference of the clamping roller (22) is tangent to the bottom surface of the main rib rod, the minimum spacing between the upper roller (21) and the clamping roller (22) is adapted to the width of the secondary rib rod, and the minimum spacing between the lower roller (23) and the clamping roller (22) is adapted to the width of the secondary rib rod; The second supporting wheel group (20) comprises a second wheel frame, on which an upper roller (21), a clamping roller (22) and a lower roller (23) are also mounted, and the number of mounted rollers is the same as or different from that of the first supporting wheel group (19).

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