CN112238317A - Roller assembly tool and assembly method of road roller - Google Patents
Roller assembly tool and assembly method of road roller Download PDFInfo
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- CN112238317A CN112238317A CN202011119609.2A CN202011119609A CN112238317A CN 112238317 A CN112238317 A CN 112238317A CN 202011119609 A CN202011119609 A CN 202011119609A CN 112238317 A CN112238317 A CN 112238317A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a roller assembly tool and an assembly method of a road roller, and relates to the technical field of road rollers. The roller assembling tool of the road roller comprises a roller body positioning mechanism and an excitation chamber clamping and positioning mechanism. The cylinder positioning mechanism is used for supporting and positioning the cylinder. The excitation chamber clamping and positioning mechanism comprises a first clamping and positioning component and a second clamping and positioning component, and the first clamping and positioning component and the second clamping and positioning component are respectively arranged at two ends of the cylinder positioning mechanism so as to position the axial position of the excitation chamber in the cylinder; the vibration excitation chamber clamping and positioning mechanism and the cylinder positioning mechanism can jointly adjust the radial matching position of the vibration excitation chamber and the cylinder. According to the roller assembling tool for the road roller, provided by the invention, the welding seam gap between the annular web plate of the excitation chamber and the roller body is more uniform, so that automatic welding can be realized, the production efficiency is improved, and the welding quality is ensured.
Description
Technical Field
The invention relates to the technical field of road rollers, in particular to a roller assembling tool and a roller assembling method for a road roller.
Background
In the production and manufacturing process of the roller of the road roller, the roller comprises a roller body and an excitation chamber, wherein the excitation chamber is arranged in the roller body, and annular webs at two ends of the excitation chamber are welded and fixed with the inner wall of the roller body.
The assembly mode of the cylinder body and the excitation chamber of the existing roller is vertical shaft or pit type vertical assembly, and the excitation chamber is mainly hoisted, placed and adjusted, an inner hole of the excitation chamber is positioned by adopting a mandrel, and the bottom of the excitation chamber supports and positions the outer surface of a web plate of the excitation chamber. Then vertical hoist and mount barrel, place down along the annular web edge of excitation chamber, adopt the bottom location, hoist and mount and place the annular web clearance of back barrel and excitation chamber in place and just stereotype basically, also can only observe the clearance condition above, the clearance below can't observe more inconvenient regulation. Part of manufacturers optimize the process, and a plurality of groups of self-centering oil cylinders are adopted below the process to adjust the roller body. However, the assembly clearance below the assembly clearance is still not uniform due to the fact that observation cannot be carried out, confirmation can be carried out only through the clearance above the assembly clearance, manual welding priming needs to be adopted, welding automation is not facilitated, welding deformation uniformity is poor due to the fact that the clearance is not uniform, and larger machining amount needs to be reserved for machining after integral assembly welding. Meanwhile, after assembly, the welding seam part on the upper surface can be fixed only by spot welding, the barrel on the other side of the bottom and the annular web plate cannot be fixed by spot welding, and the end which is not fixed by spot welding deforms occasionally when the crane is hoisted and overturned to impact, so that the welding seam gap is uneven.
Disclosure of Invention
The invention aims to provide a roller assembly tool and an assembly method of a road roller, so that a welding seam gap between an annular web plate of an excitation chamber and a roller body is more uniform.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a cylinder assembly fixture of road roller, the cylinder includes barrel and excitation chamber, the excitation chamber is located in the barrel, and with barrel welded connection, it includes:
the cylinder positioning mechanism is used for supporting and positioning the cylinder;
the excitation chamber clamping and positioning mechanism comprises a first clamping and positioning component and a second clamping and positioning component, wherein the first clamping and positioning component and the second clamping and positioning component are respectively arranged at two ends of the cylinder positioning mechanism and are used for clamping two ends of the excitation chamber so as to position the axial position of the excitation chamber in the cylinder;
the vibration excitation chamber clamping and positioning mechanism and the cylinder positioning mechanism can jointly adjust the radial matching position of the vibration excitation chamber and the cylinder.
Optionally, the first clamping and positioning assembly and the second clamping and positioning assembly both comprise positioning shafts, and the positioning shafts are matched with inner holes of the excitation chamber to clamp and position the excitation chamber.
Optionally, the positioning shaft is provided as a telescopic structure to adjust the axial position of the excitation chamber in the barrel.
Optionally, the excitation chamber clamping and positioning mechanism further comprises a rotation assembly, and the positioning shaft is connected with the rotation assembly to drive the excitation chamber to rotate.
Optionally, an absolute value encoder is disposed on the slewing assembly.
Optionally, the first clamping and positioning assembly and the second clamping and positioning assembly are height adjustable.
Optionally, the excitation chamber clamping and positioning mechanism further comprises a first support frame and a second support frame which are arranged oppositely, and the first clamping and positioning assembly is arranged on the first support frame and can move along the height direction of the first support frame; the second clamping and positioning assembly is arranged on the second support frame and can move along the height direction of the second support frame.
Optionally, the cylinder positioning mechanism comprises a rotating assembly, and the rotating assembly can support and drive the cylinder to rotate so as to adjust the radial matching position of the excitation chamber and the cylinder.
Optionally, the rotating assembly includes a first rotating member including a first roller set and a second roller set, the barrel is disposed between the first roller set and the second roller set, and the first rotating member rotates to drive the barrel to rotate.
Optionally, the rotating assembly further comprises a second rotating member rotatably connected to the base frame to rotate the drum relative to the base frame.
Optionally, the second rotating part further comprises a rotation limiter disposed on the base frame for limiting a rotational position of the cylinder.
Optionally, a distance between the first roller set and the second roller set is adjustable.
Optionally, the barrel positioning mechanism further includes a limiting assembly, the limiting assembly includes a first limiting member and a second limiting member, the first limiting member and the second limiting member are used for limiting the axial displacement of the barrel, and the distance between the first limiting member and the second limiting member is adjustable.
The roller assembling method of the road roller applying the roller assembling tool of the road roller comprises the following steps:
placing the assembled excitation chamber in a cylinder, and then placing the cylinder on a cylinder positioning mechanism;
the excitation chamber clamping and positioning mechanism clamps and positions the excitation chamber to determine the axial position of the excitation chamber in the cylinder;
the cylinder positioning mechanism and the excitation chamber clamping and positioning mechanism jointly adjust the radial matching position of the excitation chamber and the cylinder so as to ensure that the gap between the excitation chamber and the cylinder is uniform;
and pre-fixing the excitation chamber and the cylinder body in a spot welding manner.
The invention has the beneficial effects that:
the roller assembling tool of the road roller is provided with the roller positioning mechanism and the excitation chamber clamping and positioning mechanism, and the roller positioning mechanism is used for supporting and positioning the roller. The vibration excitation chamber clamping and positioning mechanism comprises a first clamping and positioning component and a second clamping and positioning component, the first clamping and positioning component and the second clamping and positioning component respectively clamp two ends of the vibration excitation chamber to position the axial position of the vibration excitation chamber in the barrel, and the vibration excitation chamber clamping and positioning mechanism and the barrel positioning mechanism can jointly adjust the radial matching position of the vibration excitation chamber and the barrel so that the weld seam gap between the annular web of the vibration excitation chamber and the barrel is more uniform. According to the roller assembling tool for the road roller, provided by the invention, the welding seam gap between the annular web plate of the excitation chamber and the roller body is more uniform, so that automatic welding can be realized, the production efficiency is improved, and the welding quality is ensured.
According to the roller assembling method of the road roller, the roller assembling tool of the road roller is used for assembling, the roller body and the excitation chamber are transversely assembled, compared with the vertical assembly in the prior art, the potential safety hazard caused by overturning by using a travelling crane is avoided, the production efficiency is improved, the gap of a welding seam between the excitation chamber and the roller body is more uniform, and the welding quality is improved.
Drawings
FIG. 1 is a schematic diagram of a roller drum according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an assembly cylinder and an excitation chamber of a cylinder assembly tool of a road roller according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a clamping and positioning mechanism of an excitation chamber according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first clamping and positioning assembly and a second clamping and positioning assembly provided by an embodiment of the present invention;
FIG. 5 is a schematic structural view of a cartridge positioning mechanism provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural view of a rotary assembly provided in accordance with an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 in the direction A;
FIG. 8 is a schematic structural view of a base frame according to an embodiment of the present invention;
fig. 9 is a flow chart of a method of assembling a drum of a soil compactor according to an embodiment of the invention.
In the figure:
100. a drum;
101. a barrel; 102. an excitation chamber; 103. auxiliary rib plates; 104. a hook;
1021. an annular web;
200. a vibration excitation chamber clamping and positioning mechanism;
210. a first clamping and positioning assembly; 220. a second clamping and positioning assembly;
211. a first support frame; 212. a second support frame;
201. positioning the shaft; 202. a second driving member; 203. a guide sleeve; 204. positioning a plate; 205. a swivel assembly; 206. a supporting seat; 207. a first driving member; 208. a lead screw;
2051. a first connecting member; 2052. a second connecting member; 2053. a third driving member;
300. a barrel positioning mechanism;
310. a rotating assembly; 320. a base frame; 330. a limiting component; 340. a moving assembly;
311. a first rotating member; 312. a second rotating member; 313. mounting a bracket; 314. a fourth drive; 315. a fifth driving member; 321. rotating the mounting seat; 322. positioning holes; 331. a first limit piece; 332. a second limiting member; 333. a sixth driving member; 341. a chute; 342. a slide rail; 343. a seventh driving member;
3111. a first roller train; 3112. a second roller set; 3113. an eighth driving member; 3121. a semicircular disc; 3122. a rotating shaft; 3123. a rotation limiter; 3131. and a positioning pin.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, the roller drum 100 comprises a drum 101, an excitation chamber 102 and an annular web 1021. The inner wall of the barrel 101 is provided with a hook 104 near the open end for facilitating the hoisting. The excitation chamber 102 is of an independent modular design and comprises an inner cylinder, an inner web plate and a lubricating system, flange plates are arranged at two ends of the inner cylinder, all parts are assembled by adopting a self-centering tool, then a robot or a special machine is adopted to carry out ship-shaped welding of annular welding seams, holes for installing the flange plates at two ends of the excitation chamber 102 are utilized and sealed after welding, then compactness inspection of an inner cavity is carried out, and finally the independent excitation chamber 102 is processed into parts to be stored as a modular finished product. According to the on-line plan configuration, the production task of the roller 100 is carried out by selecting the specifications of the cylinder body 101, the annular web 1021 and the excitation chamber 102 of the roller 100 according to the model, then connecting the annular web 1021 with two ends of the excitation chamber 102 through bolts, assembling the excitation chamber 102 with the annular web 1021 in the cylinder body 101 through a roller assembly tool, pre-fixing the assembled cylinder body by spot welding, and arranging the auxiliary rib plate 103 between the annular web 1021 and the inner wall of the cylinder body 101 to increase the supporting strength of the annular web 1021. And then welding the annular web 1021 with the cylinder body 101 by a robot of a warping positioner, and finally coating to obtain a finished roller product.
The independent modularized excitation chamber 102 structure is adopted to reduce the processing difficulty of products, the processing efficiency is improved by more than 30%, the problem of large structural part welding overturning in the operation process is well solved, the production efficiency is high, the welding quality is stable, meanwhile, the labor intensity of workers is greatly reduced, and the system is novel in structure, convenient to operate, good in universality, reliable in operation and good in effect.
The existing roller assembly process cannot meet the modularized production requirement of each type of roller 100, the gap between a ring web 1021 and a roller body 101 cannot be guaranteed, the uniformity is poor, manual welding is needed for bottoming, automatic welding cannot be achieved, welding deformation is unstable due to uneven gaps, processing can only be carried out after integral assembly welding, large-scale processing equipment is needed for carrying out boring, milling, drilling, tapping and other processes, meanwhile, the roller body 101 and an excitation chamber 102 with the ring web 1021 are vertically arranged during assembly, the roller body is horizontally arranged during welding, a travelling crane is needed for hoisting and overturning, the operation is troublesome, the weight of each roller 100 is 4-6 tons, the overturning impacts travelling cranes and lifting appliances greatly, potential safety hazards exist, the production efficiency is low, and automatic logistics cannot be achieved.
The invention aims to design a transverse assembly tool and an assembly method of a roller 100 aiming at the product structure of the roller 100, and solve the process difficulty in the production of large cylindrical structural members such as the roller 100 and the like. The assembly tool is more suitable for the production mode of the current multi-variety small-batch products, is simple and convenient to operate, high in production efficiency and strong in universality, and can realize automatic welding.
As shown in fig. 2 and fig. 3, the present embodiment provides a roller assembly fixture for a road roller, which includes a cylinder positioning mechanism 300 and an excitation chamber clamping and positioning mechanism 200. The cylinder positioning mechanism 300 is used to support and position the cylinder 101. The excitation chamber clamping and positioning mechanism 200 comprises a first clamping and positioning component 210 and a second clamping and positioning component 220, wherein the first clamping and positioning component 210 and the second clamping and positioning component 220 are respectively arranged at two ends of the cylinder positioning mechanism 300 so as to position the axial position of the excitation chamber 102 in the cylinder 101; the excitation chamber clamping and positioning mechanism 200 and the cylinder positioning mechanism 300 can jointly adjust the radial matching position of the excitation chamber 102 and the cylinder 101.
According to the roller assembling tool for the road roller, by arranging the cylinder positioning mechanism 300 and the excitation chamber clamping and positioning mechanism 200, the cylinder positioning mechanism 300 is used for supporting and positioning the cylinder 101, the excitation chamber clamping and positioning mechanism 200 comprises the first clamping and positioning component 210 and the second clamping and positioning component 220, the first clamping and positioning component 210 and the second clamping and positioning component 220 respectively clamp two ends of the excitation chamber 102 so as to position the axial position of the excitation chamber 102 in the cylinder 101, and the excitation chamber clamping and positioning mechanism 200 and the cylinder positioning mechanism 300 can jointly adjust the radial matching position of the excitation chamber 102 and the cylinder 101, so that the gap between the annular web 1021 of the excitation chamber 102 and the weld between the cylinder 101 is more uniform. According to the roller assembling tool for the road roller, provided by the invention, the weld seam gap between the annular web 1021 of the excitation chamber 102 and the roller body 101 is more uniform, so that automatic welding can be realized, the production efficiency is improved, and the welding quality is ensured.
Optionally, the first clamping and positioning assembly 210 and the second clamping and positioning assembly 220 each include a positioning shaft 201, and the positioning shaft 201 cooperates with an inner bore of the excitation chamber 102 to clamp and position the excitation chamber 102. Preferably, the first clamping and positioning assembly 210 and the second clamping and positioning assembly 220 are height adjustable. To adapt to the height of the cylinder 101 so that the axis of the excitation chamber 102 coincides with the axis of the cylinder 101, thereby determining the axial position of the excitation chamber 102 within the cylinder 101.
Optionally, the excitation chamber clamping and positioning mechanism 200 further includes a first support frame 211 and a second support frame 212, which are oppositely disposed, and the first clamping and positioning assembly 210 is disposed on the first support frame 211 and can move along the height direction of the first support frame 211; the second clamping and positioning assembly 220 is disposed on the second supporting frame 212 and can move along the height direction of the second supporting frame 212. In this embodiment, the first support frame 211 and the second support frame 212 are both rectangular frames, the support seat 206 and the first driving member 207 are disposed in the rectangular frames, the positioning shaft 201 is disposed in the support seat 206, and the first driving member 207 drives the support seat 206 to move up and down to adjust the height of the positioning shaft 201, so that the axis of the excitation chamber 102 connected to the positioning shaft 201 coincides with the axis of the cylinder 101.
In this embodiment, the first driving member 207 is a servo motor, the servo motor drives the screw rod 208 to rotate through the worm gear, the screw rod 208 is in transmission connection with the nut seat, and the nut seat drives the supporting seat 206 to move up and down. In order to ensure the synchronism of the first clamping and positioning component 210 and the second clamping and positioning component 220, a signal encoder for controlling the speed acquisition of the servo motor by a PLC is adopted for intercommunication feedback. Of course, in other embodiments, the first driving member 207 may be other driving members such as a hydraulic cylinder.
Preferably, a third limiting member and a fourth limiting member are further disposed in the rectangular frame, and the third limiting member and the fourth limiting member are respectively used for limiting the highest position and the lowest position of the supporting seat 206. In this embodiment, two sensors are further disposed in the rectangular frame, and the two sensors are respectively used for sensing the highest position and the lowest position of the supporting seat 206. The excitation chamber clamping and positioning mechanism 200 provided by the embodiment adopts mechanical limit and electrical limit dual protection, the top end of the rectangular frame is further provided with a pulley, the pulley is connected with a steel wire rope, one end of the steel wire rope is connected with the supporting seat 206, and the other end of the steel wire rope is connected with a balancing weight so as to reduce the stress of the lead screw 208 and avoid the excessive damage of the lead screw 208 due to the overweight of the excitation chamber 102.
Alternatively, as shown in fig. 4, the positioning shaft 201 is provided as a telescopic structure to adjust the axial position of the excitation chamber 102 within the cylinder 101. The positioning shaft 201 is arranged to be of a telescopic structure, so that the length of the positioning shaft 201 can be adjusted according to the axial position of the excitation chamber 102 in the cylinder body 101, and the assembly of the rollers 100 with different specifications can be adapted.
Specifically, the first clamping and positioning assembly 210 and the second clamping and positioning assembly 220 further comprise a second driving member 202, and the second driving member 202 is a hydraulic cylinder. The stiff end of pneumatic cylinder is connected with supporting seat 206, and the drive end is connected with location axle 201, adjusts the length of location axle 201 through the flexible length of control hydraulic stem to the cylinder 100 assembly of adaptation different specifications.
In the present embodiment, a guide sleeve 203 is further sleeved on the positioning shaft 201, a positioning plate 204 is connected to the inner hole matching end of the positioning shaft 201 and the excitation chamber 102, and the positioning plate 204 is matched with the inner hole of the excitation chamber 102 to connect the excitation chamber 102. The specification of the positioning plate 204 can be changed according to the size of the inner hole of the excitation chamber 102 so as to adapt to the rollers 100 with different specifications, and the universality is strong.
Optionally, the excitation chamber clamping and positioning mechanism 200 further comprises a rotation assembly 205, and the positioning shaft 201 is connected with the rotation assembly 205 to drive the excitation chamber 102 to rotate. Because the roundness of the cylinder 101 has a certain error, when the cylinder 101 is assembled with the excitation chamber 102, the problem of uneven clearance between the outer circle of the annular web 1021 and the inner wall of the cylinder 101 can occur, the excitation chamber 102 is driven to rotate by the rotation component 205 to adjust the matching position of the outer circle of the annular web 1021 and the inner wall of the cylinder 101, so that the clearance between the upper part and the lower part and the clearance between the left part and the right part cannot be too large, and the clearance is more uniform.
Preferably, the rotating assembly 205 includes a first connecting member 2051, a second connecting member 2052 and a third driving member 2053, the first connecting member 2051 and the second connecting member 2052 are both cylindrical and are in meshing transmission, an outer wall of the first connecting member 2051 is fixedly connected to the supporting base 206, an inner wall of the first connecting member 2051 is in meshing transmission with an outer wall of the second connecting member 2052, an inner wall of the second connecting member 2052 is connected to the third driving member 2053, and the third driving member 2053 drives the second connecting member 2052 to rotate. A connecting plate is arranged in the second connecting part 2052, the positioning shaft 201 is connected to the central position of the connecting plate, and the positioning shaft 201 is driven by the second connecting part 2052 to rotate so as to drive the excitation chamber 102 to rotate. In this embodiment, the third drive 2053 is a hydraulic motor.
Optionally, an absolute value encoder is disposed on the slewing assembly 205. Absolute encoders determine the code from mechanical positions, which do not require memory, do not require a reference point to be found, and do not count all the time, but only need to read the position when needed. The anti-interference characteristic and the data reliability of the encoder are greatly improved. The absolute value encoder can record the rotation state in real time, and can accurately control the radial position of the excitation chamber 102 in the cylinder 101. In the present embodiment, the rotation angle of the rotating assembly 205 is ± n × 360 °, and the rotation speed is 2.0 rpm.
In this embodiment, in order to ensure the welding quality between the annular web 1021 of the excitation chamber 102 and the inner wall of the cylinder 101, and to make the weld gap between the two more uniform, usually when the excitation chamber 102 and the cylinder 101 are assembled, the cylinder 101 and the excitation chamber 102 need to be adjusted together, and the fitting position of the inner wall circumference of the cylinder 101 and the outer circumference of the annular web 1021 is adjusted to quickly adjust the weld gap between the two more uniform.
Alternatively, as shown in fig. 5 and 6, the cylinder positioning mechanism 300 includes a rotating component 310, and the rotating component 310 can support and drive the cylinder 101 to rotate so as to adjust the radial matching position of the excitation chamber 102 and the cylinder 101. Since the roundness of the cylinder 101 has a certain deviation, the rotating assembly 310 adjusts the matching position of the inner wall circumference of the cylinder 101 and the outer circle of the annular web 1021, so that the gap between the inner wall circumference of the cylinder 101 and the annular web 1021 of the excitation chamber 102 is more uniform.
Specifically, the rotating assembly 310 includes a first rotating part 311, the first rotating part 311 includes a first roller set 3111 and a second roller set 3112, the cylinder 101 is interposed between the first roller set 3111 and the second roller set 3112, and the first rotating part 311 rotates to drive the cylinder 101 to rotate. In this embodiment, the cylinder positioning mechanism 300 further includes a mounting bracket 313, a base frame 320 and a fourth driving member 314, the first rotating member 311 is fixedly connected to the mounting bracket 313, the first roller set 3111 and the second roller set 3112 are disposed on the mounting bracket 313 at intervals, the cylinder 101 is disposed between the first roller set 3111 and the second roller set 3112, and the mounting bracket 313 is disposed on the base frame 320. The two sides of the mounting bracket 313 are provided with positioning pins 3131, the base frame 320 is correspondingly provided with positioning holes 322, the positioning pins 3131 are matched with the positioning holes 322, and the mounting bracket 313 is arranged on the base frame 320. The first roller set 3111 and the second roller set 3112 each include two rollers connected through a transmission shaft, the fourth driving member 314 drives the first roller set 3111 to rotate, and the second roller set 3112 is driven by the cylinder 101, so that the cylinder 101 rotates relative to the excitation chamber 102 to change a radial matching position therebetween.
Preferably, the spacing between the first and second roller sets 3111 and 3112 is adjustable. The distance between the first roller set 3111 and the second roller set 3112 is set to be adjustable to adapt to the cylinders 101 with different diameters, and the universality is high. In this embodiment, first roller train 3111 and second roller train 3112 can be dismantled with installing support 313 through the pedestal and be connected, be provided with eighth driving piece 3113 between first roller train 3111 and the second roller train 3112, eighth driving piece 3113 is electric putter, electric putter's stiff end is connected with installing support 313, the drive end is connected with the pedestal of second roller train 3112, move with drive second roller train 3112, thereby adjust the interval between first roller train 3111 and the second roller train 3112.
Optionally, as shown in fig. 6 and 8, the rotating assembly 310 further includes a second rotating member 312, and the second rotating member 312 is rotatably connected to the base frame 320 to rotate the cylinder 101 with respect to the base frame 320. In this embodiment, the second rotating member 312 includes a semicircular disc 3121 and a fifth driving member 315, a rotation shaft 3122 is connected to a center of the semicircular disc 3121, the semicircular disc 3121 is disposed at both sides of the mounting bracket 313 and fixedly connected to the mounting bracket 313, the rotary mounting seats 321 are disposed at both sides of the base frame 320, the semicircular disc 3121 is hinged to the rotary mounting seats 321 through the rotation shaft 3122, the fifth driving member 315 drives the semicircular disc 3121 to rotate, and the semicircular disc 3121 drives the mounting bracket 313 to rotate, so that the cylinder 101 is inclined at a certain angle relative to the base frame 320, so as to compensate for a gap uniformity difference between the cylinder 101 and the excitation chamber 102 caused by a roundness error of the cylinder 101. The fifth driving member 315 is a servo motor.
Optionally, the second rotating member 312 further includes a rotation limiter 3123, and the rotation limiter 3123 is disposed on the base frame 320 for limiting a rotation position of the drum 101. The rotation limiter 3123 is a sensor for limiting a maximum angle of rotation of the semicircular disk 3121. Since the angle of the cylinder 101 is adjusted to a fine rotation by the semicircular disc 3121, the uniformity of the gap is ensured. If the rotation angle is too large, the cylinder 101 interferes with the excitation chamber 102, causing damage to the cylinder 101 or the annular web 1021 of the damping chamber.
Optionally, as shown in fig. 6 and 7, the barrel positioning mechanism 300 further includes a limiting component 330, the limiting component 330 includes a first limiting member 331 and a second limiting member 332, the first limiting member 331 and the second limiting member 332 are used for limiting the axial displacement of the barrel 101, and a distance between the first limiting member 331 and the second limiting member 332 is adjustable. A first stopper 331 and a second stopper 332 are provided at both front and rear ends (both ends extending in the longitudinal direction of the cylinder 101) of the mounting bracket 313, respectively, to restrict displacement in the longitudinal direction of the cylinder 101. The distance between the first limiting member 331 and the second limiting member 332 is adjustable to adapt to the cylinder bodies 101 with different lengths, and the universality is strong. A sixth driving element 333 is disposed in the mounting base body of the first limiting element 331 and the second limiting element 332, and the sixth driving element 333 drives the first limiting element 331 and/or the second limiting element 332 to move, so as to adjust a distance between the first limiting element 331 and the second limiting element 332. The sixth driving member 333 is an electric push rod or a hydraulic cylinder.
Preferably, as shown in fig. 8, the base frame 320 is movably provided. In this embodiment, the barrel positioning mechanism 300 further includes a moving assembly 340, the moving assembly 340 includes a sliding slot 341, a sliding rail 342 and a seventh driving member 343, the sliding rail 342 is disposed on the ground, the sliding slot 341 is disposed at the bottom end of the base frame 320, one end of the seventh driving member 343 is fixedly connected to the ground, the other end of the seventh driving member 343 is connected to the base frame 320, and the seventh driving member 343 drives the base frame 320 to move relative to the ground to adapt to the rollers 100 with different specifications.
As shown in fig. 9, the embodiment further provides a roller assembly method of a road roller, and the roller assembly tool of the road roller is applied, and includes the following steps:
s10, placing the assembled excitation chamber 102 in the cylinder 101, and then placing the cylinder 101 on the cylinder positioning mechanism 300;
in the embodiment, firstly, according to the specification of the drum 100, the excitation chamber 102, the annular web 1021 and the drum body 101 with corresponding specifications are selected, the annular web 1021 is fixed at two ends of the excitation chamber 102 through bolts, then the assembled excitation chamber 102 is placed in the drum body 101, and the drum body 101 is hung on the drum body positioning mechanism 300. Before the excitation chamber 102 is assembled, the finish machining of the inner hole is finished, the finish machining can be finished by using common machining equipment, and the process is simple; the annular web 1021 and the cylinder are not required to be welded and then subjected to finish machining, so that the use of large-scale machining equipment is reduced, and the cost is reduced; and the roller is hoisted and turned without using a travelling crane, so that safety accidents are avoided.
S20, the excitation chamber clamping and positioning mechanism 200 clamps and positions the excitation chamber 102 to determine the axial position of the excitation chamber 102 in the cylinder 101;
in the embodiment, after the cylinder 101 is hung on the cylinder positioning mechanism 300, the first clamping and positioning assembly 210 and the second clamping and positioning assembly 220 are adjusted to enable the positioning disc 204 on the positioning shaft 201 to be matched and connected with the inner hole of the excitation chamber 102, and the axial position of the excitation chamber 102 in the cylinder 101 is determined by adjusting the length of the positioning shaft 201.
S30, the cylinder positioning mechanism 300 and the excitation chamber clamping and positioning mechanism 200 jointly adjust the radial matching position of the excitation chamber 102 and the cylinder 101, so that the gap between the excitation chamber 102 and the cylinder 101 is uniform;
after the axial position of the excitation chamber 102 in the cylinder 101 is determined, the excitation chamber 102 is rotated by the rotation component 205 to adjust the radial position of the excitation chamber 102 in the cylinder 101, and the cylinder 101 is rotated by the rotation component 310 to finely adjust the radial matching position of the inner wall of the cylinder 101 and the annular web 1021 of the excitation chamber 102, so that the gap between the excitation chamber 102 and the cylinder 101 is uniform.
S40, the excitation chamber 102 and the cylinder 101 are tack-welded and pre-fixed.
After the welding seam clearance between the annular web 1021 of the excitation chamber 102 and the inner wall of the cylinder 101 is adjusted uniformly, the annular webs 1021 at two ends of the excitation chamber 102 and the inner wall of the cylinder 101 are pre-fixed through spot welding, and then the cylinder 101 and the excitation chamber 102 are welded by a robot of a seesaw type positioner.
After welding is complete, the drum 100 may be coated and then assembled with the road roller.
By applying the assembling method of the roller of the road roller provided by the embodiment, the mechanical processing finally performed in the prior art is moved to the processing procedure of the excitation chamber, the selection of the roller body 101, the excitation chamber 102 and the annular web 1021 is performed according to the specification of the roller 100, the finished product is obtained after the assembly welding processing of the excitation chamber and the roller, and the production period of the roller is shortened by about 60%.
According to the assembling method of the roller, the roller assembling tool of the roller is used for assembling, the roller body 101 and the excitation chamber 102 are transversely assembled, compared with the vertical assembling in the prior art, the potential safety hazard caused by overturning by using a travelling crane is avoided, the production efficiency is improved, the gap of a welding seam between the excitation chamber 102 and the roller body 101 is more uniform, and the welding quality is improved.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (14)
1. The utility model provides a cylinder assembly fixture of road roller, cylinder (100) include barrel (101) and excitation chamber (102), excitation chamber (102) are located in barrel (101), and with barrel (101) welded connection, its characterized in that includes:
the barrel positioning mechanism (300), the barrel positioning mechanism (300) is used for supporting and positioning the barrel (101);
the excitation chamber clamping and positioning mechanism (200) comprises a first clamping and positioning component (210) and a second clamping and positioning component (220), wherein the first clamping and positioning component (210) and the second clamping and positioning component (220) are respectively arranged at two ends of the cylinder positioning mechanism (300) and are used for clamping two ends of the excitation chamber (102) so as to position the axial position of the excitation chamber (102) in the cylinder (101);
the excitation chamber clamping and positioning mechanism (200) and the cylinder positioning mechanism (300) can jointly adjust the radial matching position of the excitation chamber (102) and the cylinder (101).
2. The roller assembling tool for the road roller as claimed in claim 1, wherein the first clamping and positioning assembly (210) and the second clamping and positioning assembly (220) each comprise a positioning shaft (201), and the positioning shafts (201) are matched with inner holes of the excitation chamber (102) so as to clamp and position the excitation chamber (102).
3. The drum assembling tool for the road roller as claimed in claim 2, wherein the positioning shaft (201) is provided with a telescopic structure so as to adjust the axial position of the excitation chamber (102) in the drum body (101).
4. The drum assembling tool for the road roller as claimed in claim 2, wherein the excitation chamber clamping and positioning mechanism (200) further comprises a rotation assembly (205), and the positioning shaft (201) is connected with the rotation assembly (205) to drive the excitation chamber (102) to rotate.
5. The roller assembly tooling of the road roller as claimed in claim 4, wherein an absolute value encoder is arranged on the rotating assembly (205).
6. The roller assembling tool for the road roller as claimed in claim 1, wherein the heights of the first clamping and positioning assembly (210) and the second clamping and positioning assembly (220) are adjustable.
7. The drum assembling tool for the road roller according to claim 6, wherein the excitation chamber clamping and positioning mechanism (200) further comprises a first support frame (211) and a second support frame (212) which are arranged oppositely, and the first clamping and positioning assembly (210) is arranged on the first support frame (211) and can move along the height direction of the first support frame (211); the second clamping and positioning assembly (220) is arranged on the second supporting frame (212) and can move along the height direction of the second supporting frame (212).
8. The drum assembling tool for the road roller as claimed in claim 1, wherein the drum positioning mechanism (300) comprises a rotating assembly (310), and the rotating assembly (310) can support and drive the drum (101) to rotate so as to adjust a radial matching position of the excitation chamber (102) and the drum (101).
9. The drum assembling tooling for the road roller according to claim 8, wherein the rotating assembly (310) comprises a first rotating part (311), the first rotating part (311) comprises a first roller set (3111) and a second roller set (3112), the drum body (101) is arranged between the first roller set (3111) and the second roller set (3112), and the first rotating part (311) rotates to drive the drum body (101) to rotate.
10. The drum assembling tool of the road roller according to claim 9, wherein the rotating assembly (310) further comprises a second rotating component (312), and the second rotating component (312) is rotatably connected with the base frame (320) so as to enable the drum body (101) to rotate relative to the base frame (320).
11. The roller assembling tool of the road roller as claimed in claim 10, wherein the second rotating component (312) further comprises a rotation limiter (3123), and the rotation limiter (3123) is disposed on the base frame (320) and is used for limiting a rotation position of the drum (101).
12. The drum assembling tooling for road roller according to claim 9, characterized in that the distance between the first roller set (3111) and the second roller set (3112) is adjustable.
13. The roller assembling tool of the road roller according to claim 9, wherein the roller positioning mechanism (300) further comprises a limiting component (330), the limiting component (330) comprises a first limiting component (331) and a second limiting component (332), the first limiting component (331) and the second limiting component (332) are used for limiting axial displacement of the roller body (101), and a distance between the first limiting component (331) and the second limiting component (332) is adjustable.
14. A method of assembling a drum of a road roller, characterised in that the drum assembly tooling of a road roller as claimed in any one of claims 1 to 13 is applied, comprising the steps of:
placing the assembled excitation chamber (102) in a cylinder body (101), and then placing the cylinder body (101) on a cylinder body positioning mechanism (300);
a vibration excitation chamber clamping and positioning mechanism (200) clamps and positions the vibration excitation chamber (102) to determine the axial position of the vibration excitation chamber (102) in the cylinder body (101);
the cylinder positioning mechanism (300) and the excitation chamber clamping and positioning mechanism (200) jointly adjust the radial matching position of the excitation chamber (102) and the cylinder (101) so as to enable the gap between the excitation chamber (102) and the cylinder (101) to be uniform;
and (3) the excitation chamber (102) and the cylinder (101) are pre-fixed in a spot welding mode.
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| CN202011119609.2A CN112238317B (en) | 2020-10-19 | 2020-10-19 | Roller assembly tool and assembly method of road roller |
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| CN202011119609.2A CN112238317B (en) | 2020-10-19 | 2020-10-19 | Roller assembly tool and assembly method of road roller |
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| CN112238317B (en) | 2022-09-06 |
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