A road roller rear frame welding equipment

Abstract

The present invention relates to the technical field of welding equipment, and in particular to a rear frame welding equipment for a road roller, comprising a machine base, a mounting frame fixedly connected to the upper end of the machine base, a lower guide rail and an upper guide rail fixedly connected in the mounting frame, a feeding area is arranged in the lower guide rail, and a transition area and a positioning area are arranged in the lower guide rail and the upper guide rail, upper and lower connecting plates are fixedly connected between the mounting frames, a first cylinder is fixedly connected to the surface of the connecting plate, an output end of the first cylinder is slidably connected to the connecting plate, a connecting frame is fixedly connected to the lower end of the output end of the first cylinder, a bidirectional electric push rod is fixedly connected to the lower end of the connecting frame, and a welding mechanism is fixedly connected to the output end of the bidirectional electric push rod. The present invention can adaptively adjust the position of a welding gun body by simultaneously welding along multiple welding paths of a frame body, and when the distance between the welding path and the welding gun body changes, the distance between the welding gun body and the welding path remains unchanged, thereby improving stability during welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and more particularly to a road roller rear frame welding equipment. Background Art

[0002] A road roller, also known as a soil compactor, is a piece of equipment used for road construction. Among engineering machinery, road rollers belong to the category of road equipment and are widely used in filling and compaction operations for large-scale engineering projects such as high-grade highways, railways, airport runways, dams, and stadiums. They can roll sandy, semi-viscous and cohesive soils, roadbed stabilized soils, and asphalt concrete pavement layers. The road roller uses the gravity of the machine itself and is suitable for various compaction operations, causing the rolled layer to be permanently deformed and compacted. The road roller includes a front frame assembly and a rear frame assembly, and the rear frame assembly of the road roller is composed of a rear frame body, a scraper blade, etc. Its main function is to support the engine, vibrating wheel, hydraulic oil tank, fuel tank, rear water tank, etc. The rear frame is welded with high-strength steel plates and has sufficient strength and rigidity to resist the strong impact and torque when the roller is working.

[0003] The shortcomings of the existing technology: However, when welding the rear frame, the welding path of the side panels on both sides and the middle connecting plate is quite long, and the joints on both sides need to be welded, which will undoubtedly take a lot of time. The manual welding method is not only time-consuming and labor-intensive, but also extremely dependent on the workers' skill level and experience accumulation. For this reason, the quality of the weld is difficult to stabilize, and the professional quality of the operator may also affect the production. For this reason, we specially propose a rear frame welding equipment for a road roller. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the present invention provides a road roller rear frame welding equipment to solve the problems existing in the above background technology.

[0005] The present invention provides the following technical solution: a rear frame welding equipment for a road roller, comprising a machine base, a mounting frame fixedly connected to the upper end of the machine base, two lower guide rails and two upper guide rails fixedly connected in the mounting frame, a frame body slidably connected in the lower guide rails and the upper guide rails, the frame body comprising left and right side plates and a middle connecting piece, a pulley and an inner rotatably connected fitting guide wheel are rotatably connected in the middle of the lower guide rails and the upper guide rails, a feeding area is provided in the lower guide rail, a transition area and a positioning area are provided in the lower guide rails and the upper guide rails, an upper and lower connecting plate are fixedly connected between the mounting frames, a first cylinder is fixedly connected to the surface of the connecting plate, and the The first cylinder output end is slidably connected with the connecting plate, the lower end of the first cylinder output end is fixedly connected with a connecting frame, the lower end of the connecting frame is fixedly connected with a two-way electric push rod, the output end of the two-way electric push rod is fixedly connected with a welding mechanism, the welding mechanism includes a mounting block fixedly connected to the output end of the two-way electric push rod, a sliding rod is fixedly connected to the surface of the mounting block, a sliding seat is slidably connected to the circumferential surface of the sliding rod, a connecting block is fixedly connected to the surface of the sliding seat, a welding gun body is fixedly connected in the connecting block, a spring is fixedly connected between the mounting block and the connecting block, a rotating seat is fixedly connected to the lower end of the connecting block, and a roller is rotatably connected in the rotating seat through a rotating shaft;

[0006] Preferably, the loading area includes a loading guide wheel rotatably connected to the lower guide rail through the circumferential surface of the rotating shaft, and a plurality of the loading guide wheels are provided.

[0007] Preferably, a support frame is fixedly connected to the upper end of the machine base, a second cylinder is fixedly connected to the upper end of the support frame, a limiting plate is fixedly connected to the output end of the second cylinder, a connecting shaft is rotatably connected inside the limiting plate, a push plate is fixedly connected to the circumferential surface of the connecting shaft, the push plate and the limiting plate are rotatably connected, a torsion spring is fixedly connected to the circumferential surface of the connecting shaft, and the torsion spring is fixedly connected to the end away from the connecting shaft and the limiting plate.

[0008] Preferably, the transition area includes a transition guide wheel rotatably connected to the lower guide rail and the upper guide rail via a rotating shaft, and a plurality of the transition guide wheels are provided, and the diameters of the transition guide wheels increase sequentially from front to back.

[0009] Preferably, the positioning area includes a positioning guide wheel rotatably connected to the lower guide rail and the upper guide rail via a rotating shaft, a plurality of the positioning guide wheels are provided, and an extrusion sleeve is fixedly connected to the circumferential surface of the positioning guide wheel.

[0010] Preferably, the lower end of the lower guide rail is fixedly connected to a mounting seat, the surface of the mounting seat is fixedly connected to a motor, the output end of the motor is fixedly connected to a drive shaft, the circumferential surface of the drive shaft is fixedly connected to a first sprocket, the circumferential surface of the rotating shaft fixedly connected inside the positioning guide wheel is fixedly connected to a second sprocket, the first sprocket and the second sprocket are connected by a first chain, and the second sprockets are connected by a second chain.

[0011] Preferably, a connecting rod is fixedly connected to the front end of the connecting block, an end of the connecting rod away from the connecting block is fixedly connected to an inclined plate, a trigger button is fixedly connected to the surface of the slide seat, and a trigger block is fixedly connected to the surface of the slide rod.

[0012] Preferably, a positioning seat is fixedly connected to the surface of the mounting frame, a negative pressure pump and an air handling box are fixedly connected to the upper end of the positioning seat, the input end of the negative pressure pump is connected to the air handling box via a connecting pipe, the input end of the air handling box is fixedly connected to a first three-way pipe, both ends of the first three-way pipe away from the negative pressure pump are fixedly connected to a shunt pipe, two connecting pipes are fixedly connected to the circumferential surface of the shunt pipe, one end of the connecting pipe away from the shunt pipe is fixedly connected to a second three-way pipe, both ends of the second three-way pipe away from the connecting pipe are fixedly connected to a hose, an air intake shell is fixedly connected to the surface of the connecting block, the air intake shell is located at the front and rear sides of the welding gun body, and the hose is fixedly connected to the air intake shell.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention conveys the preassembled frame body to the loading area on the upper guide rail, and then controls the frame body to move backward. When the frame body passes through the loading area, the transition area and the positioning area, the position of the side panels on both sides of the frame body is gradually corrected. At this time, the side panels on both sides will be attached to the middle connecting piece to complete the positioning of the frame body. Then, the frame body is continuously conveyed backward in the positioning area. The length of the positioning area in the lower guide rail and the upper guide rail in the equipment is relatively long, so multiple frame bodies can be positioned and conveyed at the same time, so as to achieve the effect of continuously welding the frame bodies, and the frame bodies can be welded along multiple welding paths, thereby improving the welding efficiency.

[0015] 2. Under the action of rollers, slide bars, slide seats and springs, if the side plates on both sides and the four connection paths of the connecting parts are tilted, when the welding path tilts forward, the rollers will drive the connecting block and the welding gun body to move to the corresponding height positions. When the welding path tilts backward, the spring will immediately push the slide seat to synchronously adjust the connecting block and the welding gun body to the corresponding height positions. When the welding path fluctuates, the distance between the welding gun body and the welding path can be adjusted accordingly. During welding, the distance between the welding gun body and the welding path can be kept the same, thereby improving the stability and quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the right view in the present invention.

[0018] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of part A.

[0019] Figure 4 It is a schematic diagram of the structure of the frame body disassembled in the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the lower guide rail in the present invention when viewed from above.

[0021] Figure 6 It is a schematic diagram of the structure of a part of the lower guide rail in the present invention.

[0022] Figure 7 It is a schematic structural diagram of the lower guide rail and the upper guide rail in the present invention when viewed from the front.

[0023] Figure 8 It is a structural schematic diagram of the connecting plate in the present invention.

[0024] Fig. 9 It is a structural schematic diagram of the welding mechanism in the present invention when viewed from the front.

[0025] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure of part B.

[0026] Fig.11 It is a schematic diagram of the structure of the negative pressure pump in the present invention.

[0027] Fig.12 It is a structural schematic diagram of the welding mechanism in the present invention.

[0028] The accompanying drawings are marked as follows: 1. base; 101. mounting frame; 102. lower guide rail; 103. upper guide rail; 1001. pulley; 1002. fitting guide wheel; 1003. feeding area; 1004. transition area; 1005. positioning area; 1006. feeding guide wheel; 1007. transition guide wheel; 1008. positioning guide wheel; 1009. extrusion sleeve; 2. frame body; 3. connecting plate; 301. first cylinder; 302. connecting frame; 303. two-way electric push rod; 4. welding mechanism; 401. mounting block; 402. slide rod; 403. slide seat; 404. connecting block; 405. welding gun body; 406. spring; 407, rotating seat; 408, roller; 409, connecting rod; 4010, inclined plate; 4011, trigger button; 4012, trigger block; 5, support frame; 501, second cylinder; 502, limit plate; 503, connecting shaft; 504, push plate; 505, torsion spring; 6, mounting seat; 601, motor; 602, driving shaft; 603, first sprocket; 604, second sprocket; 7, positioning seat; 701, negative pressure pump; 702, air handling box; 703, connecting pipe; 704, first three-way pipe; 705, shunt pipe; 706, connecting pipe; 707, second three-way pipe; 708, hose; 709, suction shell. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The roller rear frame welding equipment involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0030] like Figure 1-12As shown, in one embodiment, a rear frame welding equipment for a road roller is proposed, including a machine base 1, a mounting frame 101 is fixedly connected to the upper end of the machine base 1, two lower guide rails 102 and two upper guide rails 103 are fixedly connected in the mounting frame 101, a frame body 2 is slidably connected in the lower guide rails 102 and the upper guide rails 103, the frame body 2 includes left and right side panels and a middle connecting piece, a pulley 1001 and an inner rotatably connected fitting guide wheel 1002 are rotatably connected in the middle of the lower guide rail 102 and the upper guide rail 103, a loading area 1003 is provided in the lower guide rail 102, a transition area 1004 and a positioning area 1005 are provided in the lower guide rail 102 and the upper guide rail 103, an upper and lower connecting plate 3 are fixedly connected between the mounting frames 101, a first cylinder 301 is fixedly connected to the surface of the connecting plate 3, and a second cylinder 302 is fixedly connected to the surface of the connecting plate 3. The output end of a cylinder 301 is slidably connected to the connecting plate 3, the lower end of the output end of the first cylinder 301 is fixedly connected to a connecting frame 302, the lower end of the connecting frame 302 is fixedly connected to a two-way electric push rod 303, the output end of the two-way electric push rod 303 is fixedly connected to a welding mechanism 4, the welding mechanism 4 includes a mounting block 401 fixedly connected to the output end of the two-way electric push rod 303, a sliding rod 402 is fixedly connected to the surface of the mounting block 401, a sliding seat 403 is slidably connected to the circumferential surface of the sliding rod 402, a connecting block 404 is fixedly connected to the surface of the sliding seat 403, a welding gun body 405 is fixedly connected in the connecting block 404, a spring 406 is fixedly connected between the mounting block 401 and the connecting block 404, a rotating seat 407 is fixedly connected to the lower end of the connecting block 404, and a roller 408 is rotatably connected in the rotating seat 407 through a rotating shaft.

[0031] In actual application of the embodiment of the present invention, the pre-assembled frame body 2 is transported to the loading area 1003 on the upper guide rail 103, and the frame body 2 is located on the circumferential surface of the pulley 1001. At this time, the frame body 2 can be easily pushed backward by the pulley 1001 to move the frame body 2 to the transition area 1004. At this time, the side panels on both sides of the frame body 2 are corrected by the transition area 1004, so that the side panels on both sides move inward, and then the two side panels are fitted under the action of the guide wheel 1002. The inner wall of the side panel on the side is fitted with the fitting guide wheel 1002, so that the position of the side panels on both sides of the frame body 2 is gradually corrected, and then the frame body 2 will move to the positioning area 1005. At this time, the side panels on both sides will be squeezed by the positioning guide wheel 1008 in the positioning area 1005, so that the frame body 2 is clamped between the positioning guide wheel 1008 and the fitting guide wheel 1002. At this time, the side panels on both sides will be fitted with the middle connecting piece, and then the frame body 2 will continue to be transported backward in the positioning area 1005 until it moves to the welding mechanism 4;

[0032] By controlling the operation of the first cylinder 301 in advance, the welding mechanism 4 is driven to descend, and then the left and right positions of the welding mechanism 4 are adjusted by controlling the operation of the two-way electric push rod 303, so that the welding gun body 405 is close to the intersection between the side plate and the connecting piece. At this time, the position of the welding mechanism 4 will be gradually raised by the action of the inclined plate 4010 until the roller 408 fits with the surface of the connecting piece, and then the welding gun is turned on. The forty-five-degree inclined welding gun body 405 is located in the middle of the angle between the side plate and the connecting piece, which can ensure that the welding area between the side plate and the connecting piece is uniform. At this time, as the connecting piece continues to move backward, the four welding gun bodies 405 will simultaneously perform welding operations along the four connection paths between the side plates and the connecting piece on both sides, thereby achieving the effect of welding the side plates and the connecting piece on both sides together.

[0033] At the same time, during the welding process, if the four connection paths of the side plates and the connecting parts on both sides are tilted, under the action of the roller 408, the slide bar 402, the slide seat 403 and the spring 406, when the welding path tilts forward, the roller 408 will drive the connecting block 404 and the welding gun body 405 to move to the corresponding horizontal position. When the welding path tilts backward, the spring 406 will immediately push the slide seat 403, so that the connecting block 404 and the welding gun body 405 can synchronously adapt to the adjusted horizontal position, ensuring that when the welding path has ups and downs, the welding gun body 405 is at the same distance from the welding path, thereby improving the stability during welding. After the welding of the frame body 2 is completed, the roller 408 will be disengaged from the connecting part, the welding gun body 405 will stop running, and the frame body 2 in the subsequent positioning area 1005 will continue to be transported backward, and the welding mechanism 4 will continue to perform welding operations on the frame body 2.

[0034] In one case of an embodiment of the present invention, the frame body 2 is pre-positioned between the two side panels and the connecting piece by the action of the positioning holes, and the operation is relatively simple. The positioning can only simply ensure that the front and rear up and down positions of the connecting piece and the two side panels remain unchanged, but the fit is poor. Subsequently, the frame body 2 is corrected and fixed between the two side panels and the connecting piece by the action of the loading area 1003, the transition area 1004 and the positioning area 1005, so that they fit tightly, and then welding can be performed. The length of the positioning area 105 in the lower guide rail 102 and the upper guide rail 103 in the equipment is relatively long, so multiple frame bodies 2 can be positioned and transported at the same time.

[0035] like Figure 5-7 As shown, as a preferred embodiment of the present invention, the loading area 1003 includes a loading guide wheel 1006 rotatably connected to the lower guide rail 102 through the circumferential surface of the rotating shaft, and a plurality of loading guide wheels 1006 are provided.

[0036] When the embodiment of the present invention is actually used, when the preassembled frame body 2 is placed in the loading area 1003, since the gap between the loading guide wheel 1006 and the fitting guide wheel 1002 in the loading area 1003 is large, sufficient space is reserved for the side panels on both sides, which is convenient for loading and the frame body 2 can be easily placed in the loading area 1003.

[0037] like Figure 2 and 3 As shown, as another preferred embodiment of the present invention, a support frame 5 is fixedly connected to the upper end of the base 1, a second cylinder 501 is fixedly connected to the upper end of the support frame 5, an output end of the second cylinder 501 is fixedly connected to a limiting plate 502, a connecting shaft 503 is rotatably connected inside the limiting plate 502, a push plate 504 is fixedly connected to the circumferential surface of the connecting shaft 503, the push plate 504 and the limiting plate 502 are rotatably connected, a torsion spring 505 is fixedly connected to the circumferential surface of the connecting shaft 503, and an end of the torsion spring 505 away from the connecting shaft 503 is fixedly connected to the limiting plate 502.

[0038] When the embodiment of the present invention is actually applied, by controlling the operation of the second cylinder 501, the retraction of the output end of the second cylinder 501 will drive the limit plate 502 and the push plate 504 to move backward, and the push plate 504 will push the front end of the connecting piece. Through the action of the pulley 1001, the frame body 2 can be easily pushed into the transition area 1004 and the positioning area 1005, so that the overall position of the frame body 2 is corrected, and it is moved to the positioning area 1005 and continues to move backward. At the same time, after pushing away a frame body 2, the new frame body 2 will be transported to the loading area 1003. Then, when the second cylinder 501 is extended and reset, under the action of the connecting shaft 503 and the torsion spring 505, the push plate 504 will rotate in the limit plate 502, and then reset to enter the pre-working state.

[0039] like Figure 5-7 As shown, as another preferred embodiment of the present invention, the transition area 1004 includes a transition guide wheel 1007 rotatably connected through a rotating shaft in the lower guide rail 102 and the upper guide rail 103, and a plurality of transition guide wheels 1007 are provided, and the diameter of the transition guide wheels 1007 increases sequentially from front to back.

[0040] In actual application of the embodiment of the present invention, after the frame body 2 moves to the transition area 1004, the gap between the transition guide wheel 1007 and the fitting guide wheel 1002 is gradually reduced by the action of the transition guide wheel 1007 and the fitting guide wheel 1002 whose diameters are successively increased. At this time, the position of the side panels on both sides can be gradually corrected so that the inner sides of the side panels on both sides are fitted with the fitting guide wheels 1002 when they move to the positioning area 1005, and then the left and right ends of the connecting piece are fitted with the inner walls of the side panels on both sides, thereby achieving the effect of correcting and positioning the position of the frame body 2 as a whole.

[0041] like Figure 5 and 6 As shown, as another preferred embodiment of the present invention, the positioning area 1005 includes a positioning guide wheel 1008 rotatably connected through a rotating shaft in the lower guide rail 102 and the upper guide rail 103, and a plurality of positioning guide wheels 1008 are provided, and an extrusion sleeve 1009 is fixedly connected to the circumferential surface of the positioning guide wheel 1008.

[0042] In actual application of the embodiment of the present invention, after the frame body 2 moves to the positioning area 1005, the gap distance between the positioning guide wheel 1008 and the fitting guide wheel 1002 is greater than the thickness of the side plate. At this time, under the action of the extrusion sleeve 1009 fixedly connected to the circumferential surface of the positioning guide wheel 1008, the side plate can be extruded to make it completely fit with the circumferential surface of the fitting guide wheel 1002 and the extrusion sleeve 1009. At this time, the position of the side plate can be completed, and the connecting piece can be tightly fitted with the inside of the side plate. When the frame body 2 continues to move backward, the frame body 2 can be completely welded.

[0043] In one embodiment of the present invention, the longest dimension between the fitting guide wheels 1002 on both sides matches the connecting piece. When the side panels on both sides are tightly fitted on the fitting guide wheels 1002, the side panels on both sides are tightly fitted with the connecting piece.

[0044] like Figure 6 As shown, as another preferred embodiment of the present invention, the lower end of the lower guide rail 102 is fixedly connected to a mounting base 6, the surface of the mounting base 6 is fixedly connected to a motor 601, the output end of the motor 601 is fixedly connected to a drive shaft 602, the circumferential surface of the drive shaft 602 is fixedly connected to a first sprocket 603, the circumferential surface of the rotating shaft fixedly connected inside the positioning guide wheel 1008 is fixedly connected to a second sprocket 604, the first sprocket 603 and the second sprocket 604 are connected by a first chain, and the second sprockets 604 are connected by a second chain.

[0045] When the embodiment of the present invention is actually applied, by controlling the operation of the motor 601, the motor 601 will drive the driving shaft 602 to rotate. The driving shaft 602 can drive the positioning guide wheel 1008 to rotate through the rotating shaft under the action of the first sprocket 603, the first chain and the second sprocket 604. Subsequently, under the action of the second sprocket 604 and the second chain, multiple positioning guide wheels 1008 rotate at the same time. Under the action of the extrusion sleeve 1009, the friction between the side plate is relatively large, thereby achieving the effect of driving the frame body 2 to move into the positioning area 1005 and then continue to move backward.

[0046] like Fig.10 and 12 As shown, as another preferred embodiment of the present invention, the front end of the connecting block 404 is fixedly connected to a connecting rod 409, the end of the connecting rod 409 away from the connecting block 404 is fixedly connected to an inclined plate 4010, the surface of the slide seat 403 is fixedly connected to a trigger button 4011, and the surface of the slide rod 402 is fixedly connected to a trigger block 4012.

[0047] When the roller 408 is detached from the connecting piece, the slide 403 is driven to reset under the action of the spring 406, so that the trigger block 4012 is pressed on the trigger button 4011, and the welding gun body 405 stops working automatically, thereby achieving the effect of controlling the welding gun body 405 to automatically start working and automatically close after welding is completed.

[0048] like Figure 8-11As shown, as another preferred embodiment of the present invention, a positioning seat 7 is fixedly connected to the surface of the mounting frame 101, and a negative pressure pump 701 and an air handling box 702 are fixedly connected to the upper end of the positioning seat 7. The input end of the negative pressure pump 701 is connected to the air handling box 702 via a connecting pipe 703, and a first three-way pipe 704 is fixedly connected to the input end of the air handling box 702. Both ends of the first three-way pipe 704 away from the negative pressure pump 701 are fixedly connected to a shunt pipe 705, and two connecting pipes 706 are fixedly connected to the circumferential surface of the shunt pipe 705. One end of the connecting pipe 706 away from the shunt pipe 705 is fixedly connected to a second three-way pipe 707, and both ends of the second three-way pipe 707 away from the connecting pipe 706 are fixedly connected to a hose 708, and the surface of the connecting block 404 is fixedly connected to an air suction shell 709, and the air suction shell 709 is located at the front and rear sides of the welding gun body 405, and the hose 708 is fixedly connected to the air suction shell 709.

[0049] In actual application, the embodiment of the present invention controls the operation of the negative pressure pump 701. At this time, through the action of the connecting pipe 703, the first three-way pipe 704, the shunt pipe 705, the connecting pipe 706, the second three-way pipe 707 and the hose 708, a negative pressure is generated in the air intake shell 709 to absorb the air on both sides of the welding gun, so that the harmful gas generated when the welding gun is working can be absorbed and absorbed into the air treatment box 702 for filtration and purification, so as to avoid a high concentration of harmful gases in the surrounding air during long-term welding operation, which affects the health of the workers.

[0050] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0051] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0052] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A road roller rear frame welding device, comprising a machine base (1), characterized in that: The upper end of the machine base (1) is fixedly connected to a mounting frame (101), two lower guide rails (102) and two upper guide rails (103) are fixedly connected inside the mounting frame (101), a frame body (2) is slidably connected inside the lower guide rails (102) and the upper guide rails (103), the frame body (2) comprises left and right side panels and a connecting piece in the middle, a pulley (1001) and an inner rotatably connected fitting guide wheel (1002) are rotatably connected in the middle of the lower guide rails (102) and the upper guide rails (103), a loading area (1003) is provided in the lower guide rails (102), and a transition area is provided in the lower guide rails (102) and the upper guide rails (103). A region (1004) and a positioning region (1005) are provided between the mounting frame (101), and an upper and lower connecting plate (3) are fixedly connected between the mounting frame (101); a first cylinder (301) is fixedly connected to the surface of the connecting plate (3); an output end of the first cylinder (301) is slidably connected to the connecting plate (3); a connecting frame (302) is fixedly connected to the lower end of the output end of the first cylinder (301); a bidirectional electric push rod (303) is fixedly connected to the lower end of the connecting frame (302); a welding mechanism (4) is fixedly connected to the output end of the bidirectional electric push rod (303); the welding mechanism (4) comprises a mounting block (401) fixedly connected to the output end of the bidirectional electric push rod (303). The surface of the mounting block (401) is fixedly connected to a slide bar (402), the circumferential surface of the slide bar (402) is slidably connected to a slide seat (403), the surface of the slide seat (403) is fixedly connected to a connecting block (404), a welding gun body (405) is fixedly connected inside the connecting block (404), a spring (406) is fixedly connected between the mounting block (401) and the connecting block (404), a rotating seat (407) is fixedly connected at the lower end of the connecting block (404), a roller (408) is rotatably connected inside the rotating seat (407) via a rotating shaft, and the loading area (1003) includes a roller (408) rotatably connected inside the lower guide rail (102) via a rotating shaft. The feeding guide wheel (1006) is provided in plurality, the transition area (1004) includes a transition guide wheel (1007) rotatably connected to the lower guide rail (102) and the upper guide rail (103) via a rotating shaft, the transition guide wheel (1007) is provided in plurality, the diameter of the transition guide wheel (1007) increases from front to back, the positioning area (1005) includes a positioning guide wheel (1008) rotatably connected to the lower guide rail (102) and the upper guide rail (103) via a rotating shaft, the positioning guide wheel (1008) is provided in plurality, and the circumferential surface of the positioning guide wheel (1008) is fixedly connected to an extrusion sleeve (1009).

2. The rear frame welding equipment for a road roller according to claim 1, characterized in that: The upper end of the machine base (1) is fixedly connected to a support frame (5), the upper end of the support frame (5) is fixedly connected to a second cylinder (501), the output end of the second cylinder (501) is fixedly connected to a limit plate (502), a connecting shaft (503) is rotatably connected inside the limit plate (502), a push plate (504) is fixedly connected to the circumferential surface of the connecting shaft (503), the push plate (504) and the limit plate (502) are rotatably connected, a torsion spring (505) is fixedly connected to the circumferential surface of the connecting shaft (503), and an end of the torsion spring (505) away from the connecting shaft (503) is fixedly connected to the limit plate (502).

3. The rear frame welding equipment for a road roller according to claim 1, characterized in that: The lower end of the lower guide rail (102) is fixedly connected to a mounting seat (6), the surface of the mounting seat (6) is fixedly connected to a motor (601), the output end of the motor (601) is fixedly connected to a drive shaft (602), the circumferential surface of the drive shaft (602) is fixedly connected to a first sprocket (603), the circumferential surface of the rotating shaft fixedly connected inside the positioning guide wheel (1008) is fixedly connected to a second sprocket (604), the first sprocket (603) and the second sprocket (604) are connected via a first chain, and the second sprockets (604) are connected via a second chain.

4. The rear frame welding equipment for a road roller according to claim 1, characterized in that: The front end of the connecting block (404) is fixedly connected to a connecting rod (409), one end of the connecting rod (409) away from the connecting block (404) is fixedly connected to an inclined plate (4010), the surface of the sliding seat (403) is fixedly connected to a trigger button (4011), and the surface of the sliding rod (402) is fixedly connected to a trigger block (4012).

5. The road roller rear frame welding equipment according to claim 1, characterized in that: A positioning seat (7) is fixedly connected to the surface of the mounting frame (101); a negative pressure pump (701) and an air treatment box (702) are fixedly connected to the upper end of the positioning seat (7); an input end of the negative pressure pump (701) and the air treatment box (702) are connected via a connecting pipe (703); a first three-way pipe (704) is fixedly connected to the input end of the air treatment box (702); both ends of the first three-way pipe (704) away from the negative pressure pump (701) are fixedly connected to a shunt pipe (705); and the shunt pipe (705) is fixedly connected to the input end of the air treatment box (702). 05) Two connecting pipes (706) are fixedly connected on the circumferential surface, one end of the connecting pipe (706) away from the diversion pipe (705) is fixedly connected to a second three-way pipe (707), and both ends of the second three-way pipe (707) away from the connecting pipe (706) are fixedly connected to a hose (708), and the surface of the connecting block (404) is fixedly connected to an air intake shell (709), and the air intake shell (709) is located on the front and rear sides of the welding gun body (405), and the hose (708) is fixedly connected to the air intake shell (709).

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