CN113510424B - Assembling workbench for assembling chain wheel and main shaft and assembling method thereof - Google Patents
Assembling workbench for assembling chain wheel and main shaft and assembling method thereof Download PDFInfo
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- CN113510424B CN113510424B CN202110734852.3A CN202110734852A CN113510424B CN 113510424 B CN113510424 B CN 113510424B CN 202110734852 A CN202110734852 A CN 202110734852A CN 113510424 B CN113510424 B CN 113510424B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000003466 welding Methods 0.000 claims abstract description 36
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 description 9
- 230000000149 penetrating effect Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
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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
-
- 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
- B23K37/0461—Welding tables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides an assembling workbench for assembling a chain wheel and a main shaft and an assembling method thereof, and belongs to the technical field of assembling equipment for the chain wheel and the main shaft. The welding device solves the problems that the existing assembly equipment cannot improve the assembly accuracy and the welding efficiency. The invention relates to an assembling workbench for assembling a chain wheel and a main shaft, which comprises a base, a fixed shell, a left positioning component, a left clamping shaft component, a sliding frame, a right clamping shaft component, a right positioning component and a positioning mechanism. In the invention, one chain wheel is positioned on the left positioning component, the other chain wheel is positioned on the right positioning component, the positioning mechanism supports the two chain wheels, and the main shaft is positioned on the moving frame, so that the central axis of the main shaft is coincident with the central axes of the two chain wheels, and the main shaft and the chain wheels can be accurately assembled together.
Description
Technical Field
The invention belongs to the technical field of assembly equipment of chain wheels and spindles, and relates to an assembly workbench for assembling the chain wheels and the spindles and an assembly method thereof.
Background
An escalator or an automatic pedestrian elevator, a handrail elevator and an escalator are transportation means for transporting pedestrians in a conveyor belt mode. The escalator is generally inclined, and pedestrians can automatically walk on the steps at one end of the escalator, so that the pedestrians can be automatically brought to the other end of the escalator, and the steps can be kept horizontal all the way. The escalator is provided with handrails which move synchronously with the steps at two sides for a user to hold.
The sprocket is an important component in the staircase, and in the process of sprocket installation, the sprocket needs to be installed and welded with the main shaft, and this process often adopts manual installation and manual welding, and this just leads to needing a plurality of workman to operate together, so, not only has increased the equipment cost of main shaft and sprocket, and installation effectiveness is also lower, and secondly, the sprocket of manual assembly and main shaft, can not guarantee its precision.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an assembling workbench for assembling a chain wheel and a main shaft and an assembling method thereof, wherein the assembling accuracy is improved, and the welding efficiency is improved.
The aim of the invention can be achieved by the following technical scheme: an assembly table for assembling a sprocket with a spindle, comprising:
the base is provided with a fixed shell at one side;
the left positioning assembly is rotatably arranged in the fixed shell, a left clamping shaft assembly is movably clamped in the left positioning assembly, and a driving mechanism for driving the left positioning assembly to rotate is arranged in the fixed shell;
the sliding frame is slidably arranged on the base, and the right clamping shaft assembly is movably arranged on the sliding frame;
the right positioning assembly is movably sleeved on the right clamping shaft assembly, and a positioning mechanism for supporting the chain wheel is arranged on the base.
In the above assembling workbench for assembling the sprocket and the spindle, the left positioning assembly comprises a rotating sleeve, a main gear connected with the driving mechanism is mounted on the rotating sleeve, at least two clamping rings connected with the fixed shell are movably sleeved on the rotating sleeve, and an outer bearing is arranged between the clamping rings and the rotating sleeve.
In the above assembling workbench for assembling the sprocket and the spindle, one end of the rotating sleeve is clamped with the clamping shell, the left clamping shaft assembly comprises an outer sleeve capable of moving relative to the rotating sleeve and a clamping shaft member, the clamping shaft member is movably clamped in the clamping shell, and the outer sleeve is connected with the clamping shaft member through a push rod.
In the assembling workbench for assembling the chain wheel and the main shaft, the sliding frame is provided with the right cylinder body for driving the right clamping shaft assembly to move, and the right cylinder body is provided with the right cylinder rod for installing the right clamping shaft assembly and the right positioning assembly.
In the assembling workbench for assembling the chain wheel and the main shaft, the right clamping shaft assembly comprises a clamping sleeve movably sleeved on the right cylinder rod, an anti-slip sleeve for preventing the clamping sleeve from moving in a dislocation manner is detachably connected on the right cylinder rod, and a left bearing is arranged between the clamping sleeve and the right cylinder rod.
In the above assembling workbench for assembling the sprocket and the spindle, the right positioning assembly comprises a fixing sleeve sleeved on the right cylinder rod, the fixing sleeve is detachably connected with the right cylinder rod, and the right cylinder rod can move relative to the fixing sleeve.
In the assembling workbench for assembling the chain wheel and the main shaft, the right positioning sleeve is movably sleeved on the fixed sleeve, a plurality of right protruding blocks are arranged on the right positioning sleeve, and a right bearing is arranged between the right positioning sleeve and the fixed sleeve.
In the above-mentioned assembly workbench for assembling sprocket and main shaft, positioning mechanism includes the lifting seat and is used for driving the lifting assembly that the lifting seat goes up and down, one side of lifting seat is equipped with the plug bush, the plug bush interpolation is equipped with the depression bar, be equipped with two at least brake components in the balladeur train, each brake component passes through same connecting rod and connects, the depression bar is located the top of connecting rod.
In the above assembling workbench for assembling the sprocket and the spindle, the driving mechanism comprises a first rotating shaft, a second rotating shaft and a third rotating shaft movably mounted in the fixed shell, the first rotating shaft is provided with a second gear and a third gear, the second rotating shaft is provided with a fourth gear and a fifth gear, the fourth gear is meshed with the third gear, the third rotating shaft is provided with a sixth gear meshed with the main gear, and the sixth gear is meshed with the fifth gear.
An assembly method for an assembly table for assembling a sprocket with a spindle, comprising:
s1, positioning one chain wheel on a left positioning assembly, positioning the other chain wheel on a right positioning assembly, enabling a positioning mechanism to support the two chain wheels, and then placing a main shaft on a moving frame;
S2, pushing the sliding frame to the direction of the fixed shell until two ends of the main shaft respectively pass through the chain wheels, and simultaneously, inserting one end of the left clamping shaft assembly into the main shaft and inserting one end of the right clamping shaft assembly into the main shaft;
s3, separating a positioning rod on the positioning mechanism from the chain wheel, braking the sliding frame on the guide rail by the braking component, and separating a compression rod on the positioning mechanism from the braking component;
s3, unfolding the clamping shaft piece of the left clamping shaft assembly so as to clamp the clamping shaft piece in the main shaft, and then driving the left positioning assembly and the left clamping shaft assembly to synchronously rotate by the driving mechanism so as to synchronously rotate the main shaft and the chain wheel;
S4, welding the inner side connection part between the main shaft and the chain wheel by a welding gun;
s5, after welding is completed, releasing the brake of the brake assembly, and stopping the driving mechanism;
s6, moving the carriage to a direction away from the fixed seat, and simultaneously controlling the left clamping shaft assembly to push to the carriage direction relative to the left positioning assembly and controlling the right clamping shaft assembly to move to the fixed shell direction relative to the right positioning assembly;
s7, stopping moving the carriage after the left positioning component and the right positioning component are separated from the corresponding chain wheels respectively, and braking the carriage on the guide rail by the braking component;
S8, the driving mechanism drives the left positioning assembly and the left clamping shaft assembly to synchronously rotate so as to synchronously rotate the main shaft and the chain wheel;
s9, welding the outer side connection part between the main shaft and the chain wheel by a welding gun;
and S10, stopping the operation of the driving mechanism after the welding is finished, resetting the left clamping shaft assembly, and resetting the right clamping shaft assembly.
Compared with the prior art, the invention has the following beneficial effects:
1. in the invention, one chain wheel is positioned on the left positioning component, the other chain wheel is positioned on the right positioning component, the positioning mechanism supports the two chain wheels, and the main shaft is positioned on the moving frame, so that the central axis of the main shaft is coincident with the central axes of the two chain wheels, and the main shaft and the chain wheels can be accurately assembled together.
2. Through the use of this equipment workstation for people can weld the inside and outside junction of sprocket smoothly, thereby guarantee the stability of being connected between sprocket and the main shaft.
3. Through the use of this equipment workstation, realize main shaft and sprocket synchronous rotation, afterwards, people only need hold welder or control the manipulator and press from both sides tight welder to aim at inboard junction and outside junction with this welder, alright weld inboard junction and outside junction, so, effectively improve the welding efficiency between main shaft and the sprocket, reduce the degree of difficulty of manual operation.
4. When the left clamping shaft assembly and the right clamping shaft assembly are respectively inserted into the main shaft, the positioning mechanism does not need to provide supporting force for the chain wheel, so that people can control the lifting assembly to drive the lifting seat to move downwards until the positioning rod is separated from the chain wheel, and the positioning mechanism can be used as a power source for driving the braking assembly to lock the guide rail, so that people do not need to apply downward pressure to the braking assembly, and the operation of people is facilitated.
5. Through the assembly method, the accurate installation between the chain wheel and the main shaft can be ensured, the inner and outer connection parts of the chain wheel can be smoothly welded, and meanwhile, the operation difficulty of people can be effectively reduced through the method.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a cross-sectional view of fig. 2 at A-A.
Fig. 4 is a schematic diagram of a half-section structure of the left positioning assembly and the left clamping shaft assembly after assembly.
Fig. 5 is a schematic structural view of the stopper.
Fig. 6 is a schematic diagram of a half-section structure of the right positioning assembly and the right clamping shaft assembly after assembly.
Fig. 7 is a schematic structural view of the brake assembly.
Fig. 8 is an enlarged schematic view of the structure at B in fig. 3.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 8, an assembling table for assembling a sprocket and a spindle according to the present invention includes a base 100, a fixing case 200, a left positioning assembly 300, a left clamping shaft assembly 400, a carriage 110, a right clamping shaft assembly 600, a right positioning assembly 500, and a positioning mechanism 700.
In the present invention, the sprocket near the right clamping shaft assembly 600 is referred to as a right sprocket, and the sprocket near the left clamping shaft assembly 400 is referred to as a left sprocket.
In the present invention, the inside connection means a connection between the sprocket and the main shaft and between the two sprockets, and the outside connection means a connection between the sprocket and the main shaft and not between the two sprockets.
A fixed shell 200 is arranged on one side of the base 100, a left positioning component 300 is rotatably arranged in the fixed shell 200, a left clamping shaft component 400 is movably clamped in the left positioning component 300, a driving mechanism 800 for driving the left positioning component 300 to rotate is arranged in the fixed shell 200, a carriage 110 is slidably arranged on the base 100, a right clamping shaft component 600 is movably arranged on the carriage 110, a right positioning component 500 is movably sleeved on the right clamping shaft component 600, a positioning mechanism 700 for supporting a chain wheel is arranged on the base 100, at least two braking components 120 are arranged in the carriage 110, at least two guide rails 140 for guiding and moving the carriage 110 are arranged on the base 100, a moving frame 150 for supporting a main shaft is rotatably connected on the guide rails 140, the braking components 120 are positioned right above the guide rails 140, one chain wheel is positioned on the left positioning component 300 in the process of assembling the chain wheel and the main shaft, the other sprocket is positioned on the right positioning assembly 500 such that the positioning mechanism 700 supports the two sprockets, and then the main shaft is placed on the moving frame 150, after which the carriage 110 is pushed toward the fixing case 200 until both ends of the main shaft pass through the sprockets, respectively, while one end of the left clamping shaft assembly 400 is inserted into the main shaft, one end of the right clamping shaft assembly 600 is inserted into the main shaft, after which the positioning mechanism 700 is separated from the sprockets, i.e., the positioning mechanism 700 presses down the brake assembly 120 such that the brake assembly 120 brakes the carriage 110 on the guide rail 140, after which the positioning mechanism 700 is reset to the original position, after which the end of the left clamping shaft assembly 400 inserted into the main shaft is unfolded such that one end of the left clamping shaft assembly 400 inserted into the main shaft is clamped in the main shaft, after which the driving mechanism 800 drives the left positioning assembly 300 and the left clamping shaft assembly 400 to rotate synchronously, such that the main shaft rotates synchronously with the sprockets, in this way, people only need to hold the welding gun to weld the inner side connection part, after welding is finished, the brake component 120 is released from braking, the driving mechanism 800 stops running, afterwards, the carriage 110 moves away from the fixed seat, meanwhile, the left clamping shaft component 400 is controlled to push the left positioning component 300 towards the carriage 110, and the left clamping shaft component 400 is controlled to move towards the fixed shell 200 relative to the left positioning component 300, so that the left positioning component 300 and the right positioning component 500 are separated from corresponding chain wheels respectively, when the left positioning component 300 and the right positioning component 500 are separated from the corresponding chain wheels respectively, the carriage 110 is stopped moving, the brake component 120 brakes the carriage 110 on the guide rail 140, the driving mechanism 800 drives the left positioning component 300 and the left clamping shaft component 400 to synchronously rotate, so that the main shaft and the chain wheels synchronously rotate, after the connection part of the chain wheels and the main shaft is welded, namely, after the main shaft and the chain wheels form a whole, the driving mechanism 800 stops running, the left clamping shaft component 400 resets, and the right clamping shaft component 600 resets, and the use of the assembly workbench effectively improves the stability in the welding process of the main shaft and the chain wheels; and the main shaft and the chain wheel are welded, and the movable frame 150 always supports the main shaft, so that the main shaft can not fall off the movable frame 150 when the left clamping shaft assembly 400 is separated from the main shaft and the right clamping shaft assembly 600 is separated from the main shaft, and the main shaft is convenient for people to move the welded main shaft.
Furthermore, when the main shaft and the chain wheel synchronously rotate, the welding gun can be clamped by the manipulator and aligned with the inner side connecting position and the outer side connecting position, and the inner side connecting position and the outer side connecting position can be welded, so that the welding efficiency between the main shaft and the chain wheel is effectively improved.
As shown in fig. 1-5, the left positioning assembly 300 includes a rotating sleeve 310, a main gear 311 connected with a driving mechanism 800 is installed on the rotating sleeve 310, a left positioning sleeve 320 for installing a sprocket is sleeved at one end of the rotating sleeve 310, a plurality of left protruding blocks 321 are arranged on the left positioning sleeve 320, when the sprocket is installed in a positioning manner, people need to place the sprocket on the left positioning sleeve 320 and enable the left protruding blocks 321 to penetrate through the sprocket, the bottom of the sprocket is positioned on two positioning rods 713 to realize the positioning and installation of the sprocket on an assembly workbench, when the left sprocket is to be welded, the positioning mechanism 700 is required to be separated from the left sprocket firstly, so that the driving mechanism 800 drives the main gear 311 to synchronously rotate with the rotating sleeve 310, the rotating sleeve 310 can drive the left positioning sleeve 320 and the left sprocket to synchronously rotate, and the left clamping shaft assembly 400 is clamped in the left positioning assembly 300 at the moment, when the left positioning assembly 300 can simultaneously drive the left clamping shaft assembly 400 to synchronously rotate with a main shaft, and secondly, at least two clamping rings 312 connected with the fixing shell 200 are movably sleeved on the rotating sleeve 310, and a clamping ring 312 and the rotating sleeve 310 are arranged between the clamping ring 310 and the rotating sleeve 313 to enable the rotating shell 200 to rotate relatively.
The left clamping shaft assembly 400 comprises an outer sleeve 420 capable of moving relative to the rotating sleeve 310 and a clamping shaft member 430, the clamping shaft member 430 is movably clamped in the clamping housing 410, the outer sleeve 420 is connected with the clamping shaft member 430 through a push rod 440, a left cylinder 450 for pushing the outer sleeve 420 to move relative to the rotating sleeve 310 is arranged on the fixed housing 200, the rotating sleeve 310 is provided with a left limiting plate 330, the push rod 440 penetrates through the left limiting plate 330, a spring 340 is arranged between the outer sleeve 420 and the left limiting plate 330, a right limiting plate 350 is arranged in the rotating sleeve 310 and between the left limiting plate 330 and the clamping housing 410, a limiting block 441 is sleeved on the push rod 440, a plurality of left limiting strips 331 are arranged on the left limiting plate 330, a plurality of right limiting strips 351 are arranged on the right limiting plate 350, a left limiting hole 441a corresponding to the left limiting strip 331 is arranged on the limiting block 441, the length of the left limit bar 331 is far greater than that of the left limit hole 441a, the left cylinder 450 is provided with a left cylinder rod 451, the inside of the outer sleeve 420 is movably provided with an inner sleeve 421, one end of the left cylinder rod 451 is clamped in the inner sleeve 421, the inside of the inner sleeve 421 is provided with a blocking block 422 for preventing the left cylinder rod 451 from separating, an inner bearing 423 is arranged between the outer sleeve 420 and the inner sleeve 421, when the left cylinder 450 pushes the left cylinder rod 451 out, the outer sleeve 420 moves along with the left cylinder rod 451, one end of the push rod 440 is connected with the outer sleeve 420, the other end of the push rod 440 is connected with the clamping shaft member 430, the clamping shell 410 is propped against the inside of the main shaft, so that the clamping shaft member 430 is unfolded and penetrates through the clamping shell 410, the spring 340 is stressed to compress, when the clamping shaft member 430 presses the inner wall of the main shaft, the left cylinder 450 stops working, so that the left clamping shaft assembly 400 is connected with the main shaft through the clamping shaft member 430, and in the process, the left limit bar 331 always penetrates the left limit hole 441a, the left limiting plate 330 is fixedly connected with the rotating sleeve 310, so that when the rotating sleeve 310 rotates, the left limiting plate 330 drives the limiting block 441, the push rod 440, the outer sleeve 420, the clamping shell 410, the main shaft and the clamping shaft piece 430 to synchronously rotate, and the left positioning assembly 300, the left clamping shaft assembly 400, the main shaft and the left chain wheel synchronously rotate, thereby facilitating welding of the inner side connecting parts of the left chain wheel by people; when the outer side connection part of the left sprocket is to be welded, people need to operate the left cylinder body 450 to continuously push the left cylinder rod 451 out in the process of moving the carriage 110 until the left limit hole 441a is separated from the left limit hole 331 and the right limit hole 351 on the right limit plate 350 passes through the right limit hole 441b, then, the left cylinder body 450 stops working, in the process, the main shaft moves in the direction away from the left positioning assembly 300, so that when the push rod 440 pushes the clamping shell 410 to move in the direction away from the rotating sleeve 310, the clamping shaft member 430 is always clamped in the main shaft, and when the rotating sleeve 310 rotates, the right limit plate 350 drives the limiting block 441, the push rod 440, the outer sleeve 420, the clamping shell 410, the main shaft and the clamping shaft member 430 to synchronously rotate, so that the synchronous rotation of the left positioning assembly 300, the left clamping shaft assembly 400, the main shaft and the left sprocket can be realized, and the outer side connection part of the left sprocket can be conveniently welded; when the welding operation is finished, the left cylinder body 450 retracts the left cylinder rod 451, the outer sleeve 420 is connected with the inner sleeve 421 through the inner bearing 423, so that the outer sleeve 420, the push rod 440 and the clamping shell 410 move synchronously, in the process, the clamping shaft member 430 is retracted back into the clamping shell 410, when the clamping shell 410 clamps the rotating sleeve 310 again and the left cylinder rod 451 continues to retract, the clamping shaft member 430 is retracted back into the clamping shell 410 completely, in addition, when the left clamping shaft assembly 400 performs the resetting movement, one end of the spring 340 abuts against the outer sleeve 420, the other end of the spring 340 abuts against the left limiting plate 330, and the left limiting plate 330 is fixedly connected with the rotating sleeve 310, so that the spring 340 has a certain thrust to the outer sleeve 420, and the resetting of the left clamping shaft assembly 400 is further ensured.
Further, when the outer sleeve 420 rotates, the inner sleeve 421 and the outer sleeve 420 are movably connected through the inner bearing 423, and one end of the left cylinder rod 451 is clamped in the inner sleeve 421, so that the inner sleeve 421 and the left cylinder rod 451 are not affected during the rotation of the outer sleeve 420, and the left clamping shaft assembly 400 is ensured to work normally.
The clamping shaft member 430 includes a claw block 431 movably passing through the clamping shell 410, a plurality of claws 432 are hinged on the clamping block, the claws 432 movably pass through the side surface of the clamping shell 410, when the clamping shell 410 abuts against the inner wall of the main shaft and the claw block 431 is continuously inserted into the clamping shell 410, one end of each claw 432 is hinged with the claw block 431, and the other end of each claw 432 is arranged on the side surface of the clamping shell 410 in a penetrating manner, so that each claw 432 extends out of the clamping shell 410, and the claws 432 are enabled to squeeze the inner wall of the main shaft, namely, the clamping shaft member 430 is clamped on the inner wall of the main shaft.
As shown in fig. 1-3 and 6, a right cylinder body 111 for driving a right clamping shaft assembly 600 to move is arranged on a carriage 110, a right cylinder rod 111a for installing the right clamping shaft assembly 600 and a right positioning assembly 500 is arranged on the right cylinder body 111, the right clamping shaft assembly 600 comprises a clamping sleeve 610 movably sleeved on the right cylinder rod 111a, an anti-drop sleeve 620 for preventing the clamping sleeve 610 from moving in a dislocation manner is detachably connected on the right cylinder rod 111a, a left bearing 630 is installed between the clamping sleeve 610 and the right cylinder rod 111a, the right positioning assembly 500 comprises a fixed sleeve 510 sleeved on the right cylinder rod 111a, the fixed sleeve 510 is detachably connected with the right cylinder rod 111a, the right cylinder rod 111a can move relative to the fixed sleeve 510, a right positioning sleeve 520 is movably sleeved on the fixed sleeve 510, a plurality of right bumps 521 are arranged on the right positioning sleeve 520, and a right bearing 530 is arranged between the right positioning sleeve 520 and the fixed sleeve 510.
When the inner side connection part of the right sprocket needs to be welded, people need to place the sprocket on the positioning mechanism 700, the main shaft is placed on the moving frame 150, and the right protruding block 521 penetrates through the sprocket, when people move the carriage 110, one end of the main shaft is inserted into the sprocket and has a certain friction force with the sprocket, meanwhile, the clamping sleeve 610 is also inserted into the main shaft, and a certain friction force exists between the clamping sleeve 610 and the main shaft, so that the main shaft can drive the sprocket to synchronously rotate when rotating, specifically, the sprocket is installed on the right positioning sleeve 520 through the right protruding block 521, the right positioning sleeve 520 is movably installed on the fixed sleeve 510 through the right bearing 530, the rotation of the right positioning sleeve 520 and the sprocket can be realized, the clamping sleeve 610 is inserted into the main shaft through the left bearing 630 and is movably installed on the right cylinder rod 111a, the main shaft and the clamping sleeve 610 can synchronously rotate relative to the right cylinder rod 111a, and one end of the main shaft is inserted into the sprocket, thereby the main shaft drives the sprocket to synchronously rotate, and the main shaft can accurately position the sprocket and accurately rotate, and the inner side connection part of the sprocket can be accurately aligned, and the inner side connection part of the sprocket can be accurately welded only by the inner side connection part of the sprocket can be accurately welded.
When the outer side connection part of the right side sprocket is to be welded, people need to move the carriage 110 to a direction far away from the fixed shell 200, meanwhile, the right cylinder body 111 pushes the right cylinder rod 111a out, the cutting sleeve 610 is movably mounted on the right cylinder rod 111a through the left bearing 630, so that the right cylinder rod 111a drives the cutting sleeve 610 to move, the cutting sleeve 610 is always inserted into the main shaft in the moving process, when the right lug 521 is separated from the right sprocket and a certain distance is reached between the right positioning sleeve 520 and the right sprocket, the carriage 110 is stopped to be moved, the right cylinder body 111 is stopped to work, the main shaft rotates, the inner side connection part of the right sprocket is welded, the right sprocket can synchronously rotate along with the main shaft, and then, people can stably weld the outer side connection part of the right sprocket only by aligning the welding gun with the outer side connection part of the right sprocket.
Through above-mentioned welding process, alright weld the inside and outside junction with right sprocket to make main shaft and sprocket can be connected steadily, simultaneously, also make things convenient for people to operate.
As shown in fig. 1-3 and fig. 7-8, the positioning mechanism 700 comprises a lifting seat 710 and a lifting assembly 720 for driving the lifting seat 710 to lift, a plug housing 711 is arranged at one side of the lifting seat 710, a pressing rod 712 is inserted into the plug housing 711, each braking assembly 120 is connected through the same connecting rod 130, the pressing rod 712 is positioned above the connecting rod 130, at least two positioning rods 713 are arranged on the lifting seat 710, when a sprocket is placed, a person needs to operate the lifting assembly 720 to drive the lifting seat 710 to lift to a preset position, after that, the sprocket is placed on the two positioning rods 713, and then a left lug 321 is inserted into a left sprocket and a right lug 521 is inserted into a right sprocket, so that the accurate positioning of the sprocket is realized; when the left and right clamping shaft assemblies 400 and 600 are inserted into the main shafts respectively, the positioning mechanism 700 does not need to provide a supporting force for the sprocket, so that a person can control the lifting assembly 720 to drive the lifting seat 710 to move downwards until the positioning rod 713 is separated from the sprocket, and the positioning mechanism 700 thereafter can be used as a power source for driving the brake assembly 120 to lock the guide rail 140, specifically, since the compression rod 712 is located above the connecting rod 130, the compression rod 712 is inserted into the insert 711, the insert 711 is connected with the lifting seat 710, and the two brake assemblies 120 are connected through the connecting rod 130, so that the compression rod 712 can press the connecting rod 130 to move downwards in the process that the lifting seat 710 drives the insert 711 and the compression rod 712 to move downwards, thereby locking the brake assembly 120 to the guide rail 140.
The lifting assembly 720 comprises at least two lifting rods 721 connected with the lifting seat 710 and a rotating rod 722 for driving the lifting rods 721 to move, a lifting motor 723 for driving the rotating rods 722 to rotate is arranged on the base 100, a worm wheel seat 724 is arranged on the base 100, a worm wheel (not shown in the figure) is movably clamped in the worm wheel seat 724, one end of each lifting rod 721 is inserted into the worm wheel, a worm 725 meshed with the worm wheel is arranged on the rotating rod 722, when the lifting seat 710 needs to lift relative to the base 100, people only need to control the lifting motor 723 to drive the rotating rods 722 to rotate, the worm wheel 725 is arranged on the rotating rod 722, the worm wheel is movably clamped in the worm wheel seat, the lifting rods 721 are inserted into the worm wheel, the lifting rods 721 are fixedly connected with the lifting seat 710, and the worm wheel drives the lifting rods 721 to lift relative to the base 100 when the worm wheel 725 drives the worm wheel to lift relative to the base 100, and accordingly lifting of the lifting seat 710 can be realized.
Each brake assembly 120 comprises a pair of first hinge rods 121, a pair of second hinge rods 122 and a penetrating rod 123, one ends of the two first hinge rods 121 are hinged, one ends of the two second hinge rods 122 are hinged through a connecting plate 124, the first hinge rods 121 are hinged with the adjacent second hinge rods 122, the penetrating rod 123 is provided with hinge blocks 125, the joints of the hinge blocks 125 and the two first hinge rods 121 are hinged, an angle (not labeled in the figure) is formed between the first hinge rods 121 and the second hinge rods 122, the angle is an obtuse angle, one end of each second hinge rod 122 far away from the first hinge rod 121 is provided with a brake block 126, each penetrating rod 123 is provided with a moving plate 123a, each moving plate 123a is in sliding connection with the carriage 110, the penetrating rod 123 is connected with a connecting rod 130, when the brake assembly 120 is braked on the guide rail 140, people only need to operate the lifting motor 723 to enable the lifting seat 710 to descend, as the pressing rod 712 is arranged on the lifting seat 710 through an inserting sleeve, and the compression bar 712 is located above the connecting rod 130, so that when the compression bar 712 descends, the compression bar 712 can compress the connecting rod 130 and the moving plate 123a to move synchronously towards the base 100, because the penetrating bar 123 is connected with the connecting rod 130, the penetrating bar 123 is hinged with the connecting positions of the two first hinge rods 121 through the hinge blocks 125, so that after the connecting plate 124 is propped against the corresponding guide rail 140, the penetrating bar 123 drives the hinge blocks 125 to move towards the guide rail 140, because one end of the two first hinge rods 121 is hinged, the first hinge rods 121 are hinged with the adjacent second hinge rods 122, so that the angle between the first hinge rods 121 and the second hinge rods 122 is gradually reduced, namely, the two first hinge rods 121 are unfolded, and in the process, because one end of the two second hinge rods 122 is hinged with the connecting plate 124, the brake blocks 126 are respectively located at two ends of the second hinge rods 122, so that the two brake blocks 126 are folded towards the center between the two, that is, the corresponding guide rail 140 is clamped by the brake block 126, and in this process, the moving plate 123a is movably clamped in the carriage 110 all the time, so that when the brake assembly 120 brakes on the guide rail 140, the brake assembly 120 limits the carriage 110 to move on the guide rail 140, thereby ensuring that the spindle and the sprocket can rotate stably when people connect outside welding.
The base 100 is provided with a guide plate 151, one end of the pressure bar 712 is provided with a guide wheel 151a movably clamped in the guide plate 151, when the lifting seat 710 lifts relative to the base 100, the guide wheel 151a is arranged on the pressure bar 712, and the guide wheel 151a is movably arranged in the guide plate 151, so that the guide wheel 151a can move along the track of the guide plate 151, and the pressure bar 712 can stably lift or descend.
The pressure lever 712 is provided with at least two openings 712a corresponding to the connecting rods 130, when the inner connecting part is welded, the pressure lever 712 is just under one opening 712a, so that when the pressure lever 712 moves downwards, the pressure lever 712 is just embedded into the opening 712a, so that the pressure lever 712 can stably press the connecting rods 130 downwards, when the outer connecting part is welded, the pressure lever 712 is just under the other opening 712a, so that when the pressure lever 712 moves downwards, the pressure lever 712 is just embedded into the opening 712a, so that the pressure lever 712 can stably press the connecting rods 130 downwards.
The driving mechanism 800 comprises a first rotating shaft 810, a second rotating shaft 820 and a third rotating shaft 830 which are movably arranged in a fixed shell 200, wherein the first rotating shaft 810 is provided with a second gear 811 and a third gear 812, the second rotating shaft 820 is provided with a fourth gear 821 and a fifth gear 822, the fourth gear 821 is meshed with the third gear 812, the third rotating shaft 830 is provided with a sixth gear 831 meshed with the main gear 311, the sixth gear 831 is meshed with the fifth gear 822, a driving motor 840 is arranged in the fixed shell 200, the driving motor 840 is provided with a first gear 841 meshed with the second gear 811, when the driving motor 840 drives the first gear 841 to rotate, the second gear 811, the third gear 812, the fourth gear 821, the fifth gear 822, the sixth gear 831 and the main gear 311 also simultaneously rotate, the diameter of the second gear 811 is larger than the diameter of the fourth gear 821, the diameters of the first gear 841, the third gear 812, the fifth gear 831 and the main gear 311 are the same, the diameters of the fourth gear 821 are larger than the diameters of the first gear 821, and the diameters of the fourth gear 821 are larger than the diameters of the first gear 821, so that the rotation speed of the first gear 311 can be reduced, and the rotation speed of the driving mechanism can be further reduced, and the driving mechanism can be driven by a left rotation of the driving mechanism 300 and a user can be stably and a rotation speed can be further driven to rotate.
An assembly method for an assembly table for assembling a sprocket with a spindle, comprising:
Step S1, a left chain wheel is placed on a left positioning sleeve 320, a left lug 321 penetrates through the left chain wheel, the bottom of the left chain wheel is positioned on two positioning rods 713 to realize the positioning and placement of the left chain wheel, a right chain wheel is placed on a right positioning sleeve 520, a right lug 521 penetrates through the right chain wheel, the bottom of the right chain wheel is positioned on two positioning rods 713 to realize the positioning and placement of the right chain wheel, and then a main shaft is placed on a moving frame 150, and the main shaft and the moving frame are arranged on a guide rail in a rolling way, and the central axis of a left clamping shaft component coincides with the central axis of a right clamping shaft component and coincides with the central axes of the main shaft, so that the central axes of the main shaft and the central axes of the two chain wheels can be ensured to coincide;
Step S2, pushing the carriage 110 towards the direction of the fixed housing 200 until the two ends of the main shaft respectively pass through the corresponding chain wheels, and simultaneously, inserting the clamping housing 410 of the left clamping shaft assembly 400 into the main shaft and propping against the inside of the main shaft, and inserting the clamping sleeve 610 of the right clamping shaft assembly 600 into the main shaft;
Step S3, separating the positioning rod 713 on the positioning mechanism 700 from the two sprockets, and the brake assembly 120 brakes the carriage 110 on the guide rail 140, so as to avoid the dislocation movement of the carriage 110 during the subsequent welding process, affecting the welding, and then separating the compression bar 712 on the positioning mechanism 700 from the brake assembly 120, that is, the lifting assembly 720 drives the lifting seat 710 to lift a certain distance, and making the two positioning rods 713 not contact with the sprockets, so as to avoid the positioning rod 713 affecting the rotation of the sprockets;
Step S3, the left cylinder 450 pushes the left cylinder rod 451 out, the outer sleeve 420 will move along with it, because one end of the push rod 440 is connected with the outer sleeve 420, the other end of the push rod 440 is connected with the clamping shaft member 430, and the clamping shell 410 at this time props against the inside of the spindle, so that the clamping shaft member 430 is unfolded and passes through the clamping shell 410, the spring 340 is forced to compress, when the clamping shaft member 430 presses the inner wall of the spindle, the left cylinder 450 stops working, so that the left clamping shaft assembly 400 is connected with the spindle through the clamping shaft member 430, in this process, the left limiting bar 331 always passes through the left limiting hole 441a, and the left limiting plate 330 is fixedly connected with the rotating sleeve 310, so that when the rotating sleeve 310 rotates, the left limiting plate 330 drives the limiting block 441, the push rod 440, the outer sleeve 420, the clamping shell 410, the spindle and the clamping shaft member 430 to synchronously rotate, so that the left positioning assembly 300, the left clamping shaft assembly 400, the spindle and the left sprocket can synchronously rotate;
S4, welding the joint of the inner sides of the two chain wheels by a welding gun;
Step S5, after the welding is completed, the connecting rod 130 is manually lifted upwards, the brake assembly 120 releases the brake, and meanwhile, the driving mechanism 800 stops running;
Step S6, moving the carriage 110 away from the fixed seat, and simultaneously, controlling the left cylinder 450 and the right cylinder 111 to enable the push rod 440 to push the clamping shell 410 to move away from the rotating sleeve 310, wherein the right cylinder 111 pushes the right cylinder rod 111a and the clamping sleeve 610 out, and in the process, the clamping shaft member 430 is always clamped on the main shaft and the clamping shell 410 is abutted in the main shaft, and the clamping sleeve 610 is always inserted in the main shaft, so that the left sprocket wheel can be separated from the left positioning sleeve 320, and the right sprocket wheel is separated from the right positioning sleeve 520;
step S7, after the left positioning assembly 300 and the right positioning assembly 500 are separated from the corresponding chain wheels, the carriage 110 stops moving, and the lifting assembly 720 drives the lifting seat 710 to descend, so that the braking assembly 120 brakes the carriage 110 on the guide rail 140;
Step S8, the driving mechanism 800 drives the left positioning assembly 300 and the left clamping shaft assembly 400 to synchronously rotate, so that one end of the main shaft is arranged on the left clamping shaft assembly 400 through the clamping shaft piece 430, the other end of the main shaft is movably arranged on the right cylinder rod 111a through the clamping sleeve 610, and the inner side connection parts of the two chain wheels are welded, so that the main shaft and the chain wheels synchronously rotate;
s9, welding the outer side connection part between the main shaft and the chain wheel by a welding gun;
in step S10, after the welding is completed, the driving mechanism 800 stops operating, the left clamping shaft assembly 400 resets, the right clamping shaft assembly 600 resets, and the moving frame 150 always supports the spindle during the welding process of the spindle and the sprocket, so that the spindle will not fall from the moving frame 150 when the left clamping shaft assembly 400 is separated from the spindle and the right clamping shaft assembly 600 is separated from the spindle, thereby facilitating the movement of the welded spindle by people.
Through the assembling method for the chain wheel and the main shaft, not only can the accurate installation between the chain wheel and the main shaft be ensured, but also the inner and outer connection parts of the chain wheel can be smoothly welded, and meanwhile, the operation difficulty of people can be effectively reduced through the method.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
Claims (9)
1. A method for assembling a sprocket with a spindle, the assembly station comprising:
the base is provided with a fixed shell at one side;
the left positioning assembly is rotatably arranged in the fixed shell, a left clamping shaft assembly is movably clamped in the left positioning assembly, and a driving mechanism for driving the left positioning assembly to rotate is arranged in the fixed shell;
the sliding frame is slidably arranged on the base, and the right clamping shaft assembly is movably arranged on the sliding frame;
the right positioning assembly is movably sleeved on the right clamping shaft assembly, and a positioning mechanism for supporting the chain wheel is arranged on the base;
The base is provided with at least two guide rails for guiding the movable carriage, and the guide rails are connected with a movable frame for supporting the main shaft in a rolling manner;
The left positioning component comprises a rotating sleeve, one end of the rotating sleeve is provided with a clamping shell in a clamping way, the left clamping shaft component comprises an outer sleeve capable of moving relative to the rotating sleeve and a clamping shaft piece,
The positioning mechanism comprises a lifting seat and a lifting assembly for driving the lifting seat to lift, one side of the lifting seat is provided with a plug bush, a compression bar is inserted in the plug bush, at least two braking assemblies are arranged in the sliding frame, and at least two positioning rods are arranged on the lifting seat;
The method comprises the following steps:
s1, positioning one chain wheel on a left positioning assembly, positioning the other chain wheel on a right positioning assembly, enabling a positioning mechanism to support the two chain wheels, and then placing a main shaft on a moving frame;
S2, pushing the sliding frame to the direction of the fixed shell until two ends of the main shaft respectively pass through the chain wheels, and simultaneously, inserting one end of the left clamping shaft assembly into the main shaft and inserting one end of the right clamping shaft assembly into the main shaft;
s3, separating a positioning rod on the positioning mechanism from the chain wheel, braking the sliding frame on the guide rail by the braking component, and separating a compression rod on the positioning mechanism from the braking component;
s3, unfolding the clamping shaft piece of the left clamping shaft assembly so as to clamp the clamping shaft piece in the main shaft, and then driving the left positioning assembly and the left clamping shaft assembly to synchronously rotate by the driving mechanism so as to synchronously rotate the main shaft and the chain wheel;
S4, welding the inner side connection part between the main shaft and the chain wheel by a welding gun;
s5, after welding is completed, releasing the brake of the brake assembly, and stopping the driving mechanism;
S6, moving the carriage in a direction away from the fixed shell, and simultaneously controlling the left clamping shaft assembly to push towards the carriage relative to the left positioning assembly and controlling the right clamping shaft assembly to move towards the fixed shell relative to the right positioning assembly;
s7, stopping moving the carriage after the left positioning component and the right positioning component are separated from the corresponding chain wheels respectively, and braking the carriage on the guide rail by the braking component;
S8, the driving mechanism drives the left positioning assembly and the left clamping shaft assembly to synchronously rotate so as to synchronously rotate the main shaft and the chain wheel;
s9, welding the outer side connection part between the main shaft and the chain wheel by a welding gun;
and S10, stopping the operation of the driving mechanism after the welding is finished, resetting the left clamping shaft assembly, and resetting the right clamping shaft assembly.
2. The method for assembling a sprocket and a spindle as set forth in claim 1, wherein the rotating sleeve is provided with a main gear connected to the driving mechanism, the rotating sleeve is movably provided with at least two snap rings connected to the fixed housing, and an outer bearing is provided between the snap rings and the rotating sleeve.
3. The method for assembling a sprocket and a spindle as set forth in claim 2, wherein the clamping shaft is movably clamped in the clamping housing, and the outer sleeve is connected to the clamping shaft by a push rod.
4. The method for assembling a sprocket and a spindle as set forth in claim 1, wherein the carriage is provided with a right cylinder for driving the right clamping shaft assembly to move, and the right cylinder is provided with a right cylinder rod for mounting the right clamping shaft assembly and the right positioning assembly.
5. The method for assembling a sprocket and a spindle of claim 4, wherein the right clamping shaft assembly comprises a clamping sleeve movably sleeved on a right cylinder rod, an anti-slip sleeve for preventing the clamping sleeve from moving in a dislocation manner is detachably connected to the right cylinder rod, and a left bearing is installed between the clamping sleeve and the right cylinder rod.
6. The method of assembling a sprocket with a main shaft according to claim 4, wherein the right positioning assembly includes a fixed sleeve that is sleeved over the right cylinder rod, the fixed sleeve being removably coupled to the right cylinder rod, the right cylinder rod being movable relative to the fixed sleeve.
7. The method for assembling a sprocket and a spindle as set forth in claim 6, wherein the movable sleeve is provided with a right positioning sleeve, the right positioning sleeve is provided with a plurality of right protrusions, and a right bearing is provided between the right positioning sleeve and the fixed sleeve.
8. A method for assembling a sprocket with a spindle according to claim 1, wherein each brake assembly is connected by the same link, the strut being located above the link.
9. The method for assembling a sprocket and a main shaft according to claim 2, wherein the driving mechanism comprises a first rotating shaft, a second rotating shaft and a third rotating shaft movably installed in the fixed housing, the first rotating shaft is installed with a second gear and a third gear, a fourth gear and a fifth gear are installed on the second rotating shaft, the fourth gear is meshed with the third gear, a sixth gear meshed with the main gear is installed on the third rotating shaft, and the sixth gear is meshed with the fifth gear.
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| CN202110734852.3A CN113510424B (en) | 2021-06-30 | 2021-06-30 | Assembling workbench for assembling chain wheel and main shaft and assembling method thereof |
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| CN202110734852.3A CN113510424B (en) | 2021-06-30 | 2021-06-30 | Assembling workbench for assembling chain wheel and main shaft and assembling method thereof |
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| CN114769995B (en) * | 2022-04-18 | 2024-02-06 | 荣成锻压机床有限公司 | Synchronous positioning tool for double workpieces of eccentric wheel of forging press |
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| Title |
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| 地铁扶手装配尺寸链稳健优化设计;李永华;张晓丹;智鹏鹏;;安阳工学院学报;20180716(第04期);84-87 * |
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| CN113510424A (en) | 2021-10-19 |
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