CN114505645A - Positioning clamping slewing mechanism for welding and operation method thereof - Google Patents
Positioning clamping slewing mechanism for welding and operation method thereof Download PDFInfo
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- CN114505645A CN114505645A CN202210413290.7A CN202210413290A CN114505645A CN 114505645 A CN114505645 A CN 114505645A CN 202210413290 A CN202210413290 A CN 202210413290A CN 114505645 A CN114505645 A CN 114505645A
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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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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Abstract
The invention relates to a positioning, clamping and rotating mechanism for welding, which comprises a workbench, a turntable, a positioning mechanism, a driving mechanism, a turntable fine positioning mechanism and a workpiece fine positioning mechanism, wherein the driving mechanism is arranged on the workbench and is in transmission connection with the turntable, the workbench is provided with a preheating station and a welding station, the turntable is provided with at least two positioning mechanisms, the positioning mechanisms can respectively correspond to the preheating station and the welding station, each positioning mechanism comprises a base, one end of each base is rotatably connected with a driving shaft through a supporting frame, the other end of each base is slidably connected with a pressing mechanism, one end of each driving shaft is in transmission connection with a transmission mechanism, the middle part of each driving shaft is provided with a tensioning mechanism, the workpiece fine positioning mechanism is arranged on each base and corresponds to the tensioning mechanism, and the turntable fine positioning mechanism is arranged on the side part of the turntable. This device can carry out axial and radial accurate positioning to flange axle and ring flange, ensures to carry out high accuracy welding to the work piece.
Description
Technical Field
The invention relates to the technical field of clamping equipment, in particular to a positioning clamping swing mechanism for welding and an operation method thereof.
Background
The flange shaft is suitable for various industrial equipment, small to office appliances such as printers and fax machines, large to rotary motors, automobile gearboxes and the like. When the flange shaft is used in an automobile gearbox, the flange shaft and the flange plate need to be welded together, and the flange shaft and the flange plate need to be fixed during welding. When the existing flange shaft and the flange plate are welded, manual welding and fixing are mostly adopted, and the coaxiality of the flange shaft and the flange plate cannot be guaranteed in the welding process, so that the welding precision is low, and the welding efficiency is low.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a positioning, clamping and rotating mechanism for welding and an operating method thereof, which solves the technical problem that the positioning accuracy and the welding accuracy of a flange shaft and a flange plate are not high.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that: the device comprises a workbench, a turntable, a positioning mechanism, a driving mechanism, a turntable fine positioning mechanism and a workpiece fine positioning mechanism, wherein the driving mechanism is arranged on the workbench and is in transmission connection with the turntable;
a preheating station and a welding station are arranged on the workbench;
the rotary table is provided with at least two positioning mechanisms, the positioning mechanisms can respectively correspond to the preheating station and the welding station, each positioning mechanism comprises a base, one end of each base is rotatably connected with a driving shaft through a supporting frame, the other end of each base is slidably connected with a pressing mechanism, one end of each driving shaft is in transmission connection with a transmission mechanism, and the middle part of each driving shaft is provided with a tensioning mechanism;
the workpiece fine positioning mechanism is arranged on the base and corresponds to the tensioning mechanism;
the turntable fine positioning mechanism is arranged on the side portion of the turntable and comprises a turntable positioning telescopic cylinder and a moving block, wherein the fixed end of the turntable positioning telescopic cylinder is connected with the workbench, the moving block is connected with the telescopic end of the turntable positioning telescopic cylinder, and the side portion of the turntable is provided with a rotating groove matched with the moving block.
Preferably, hold-down mechanism is including compressing tightly the support, compressing tightly the seat, compressing tightly ejector pin, lead screw, third synchronous pulley and fourth synchronous pulley, wherein, compress tightly support and base sliding connection, compress tightly the support and be close to the tight mechanism end rotation that rises and be connected with and compress tightly the seat, it is connected with and compresses tightly the ejector pin to compress tightly through the third bearing rotation in the seat, and compress tightly the ejector pin and correspond with the drive shaft, lead screw and compress tightly support threaded connection, third synchronous pulley is connected with screw drive, fourth synchronous pulley lateral part transmission is connected with second servo motor, second servo motor is connected with the base, be connected through second synchronous belt transmission between third synchronous pulley and the fourth synchronous pulley.
Preferably, the tensioning mechanism comprises a pressing disc, a spreading mold and a fixing box, wherein the pressing disc, the spreading mold and the fixing box are sequentially sleeved on the driving shaft, the pressing disc and the opening mould can slide along the axial direction of the driving shaft, the pressing disc, the opening mould and the fixing box can rotate along with the driving shaft, the end of the opening mould far away from the pressing disc is tapered, a plurality of mounting holes are arranged on the fixed box along the circumferential direction, a tensioning block is connected in the mounting holes in a sliding manner, the end surface of the tensioning block close to the end of the driving shaft is obliquely arranged, the inclined direction of the expansion block is matched with the inclined direction of a bus of the conical end of the expanding die, the top end of the expansion block is provided with a limit groove, the top end of the mounting hole is provided with an elastic limiting strip which is connected with the limiting groove, and when the opening die is close to the tensioning block, the top end of the tensioning block extends out of the mounting hole, and the flange plate is radially tensioned.
Preferably, a plurality of compression springs are arranged between the compression disc and the expanding die.
Preferably, the middle part of the driving shaft is axially provided with a ventilation channel, the driving shaft is provided with a plurality of ventilation holes, the ventilation holes are communicated with the ventilation channel and correspond to the compression spring, and one end of the ventilation channel is connected with a heat dissipation fan through a rotary joint.
Preferably, the transmission mechanism comprises a first servo motor, a first synchronous pulley and a second synchronous pulley, wherein the first servo motor is connected with the base, the first synchronous pulley is in transmission connection with the first servo motor, the second synchronous pulley is in transmission connection with the driving shaft, and the first synchronous pulley and the second synchronous pulley are in transmission connection through a first synchronous belt.
Preferably, actuating mechanism includes and rotates circle, gear and servo drive motor, and wherein, rotates the circle and rotate with the workstation and be connected, and rotates the circle outside and be equipped with the driving tooth, it is connected with the carousel to rotate the circle top, the driving tooth meshes with the gear mutually, servo drive motor is connected with gear drive, and servo drive motor is connected with the workstation.
Preferably, the workpiece fine positioning mechanism comprises a workpiece positioning telescopic cylinder and a positioning block, the fixed end of the workpiece positioning telescopic cylinder is connected with the base, the positioning block is connected with the telescopic end of the workpiece positioning telescopic cylinder, and the positioning block is matched with gaps between adjacent flange disc teeth.
Preferably, the workstation is close to welding station side and is equipped with and connects grey device, connect grey device to connect grey box and guard plate including rotating, wherein, be equipped with the welding mouth on the guard plate, and the guard plate bottom is equipped with the stand, the stand bottom is connected with the workstation, it is equipped with the rotating turret to connect grey box bottom portion to rotate, rotating turret upper end and stand sliding connection, the lower extreme is articulated mutually with the stand, and the rotating turret bottom articulates there is the rotation telescoping cylinder, the stiff end that rotates the telescoping cylinder is connected with the workstation.
The scheme also provides an operation method of the positioning, clamping and rotating mechanism for welding based on any one of the schemes, which comprises the following steps:
s1, mounting a workpiece: sleeving a flange plate on a fixed box of a preheating station, and enabling a certain tooth on the flange plate to correspond to a positioning block; then the flange shaft is sleeved on a driving shaft of the preheating station, and the teeth on the flange shaft correspond to the teeth of the flange plate;
s2, pressing the workpiece: the pressing mechanism presses the flange shaft to enable the teeth of the flange shaft to be attached to the teeth of the flange plate;
s3, fine positioning of the workpiece: a piston rod of the positioning telescopic cylinder extends to drive the positioning block to move towards the flange plate and the flange shaft, the positioning block extends into a gap between adjacent flange plate teeth, and the position of the flange shaft is adjusted to enable the tooth flange plate teeth on the flange shaft to completely correspond;
s4, preheating the workpiece: preheating a flange shaft and a flange disc which are arranged at a preheating station;
s5, workpiece rotation: the driving device drives the turntable to rotate, so that the preheated flange plate and the flange shaft are arranged at the welding station;
s6, fine positioning of the turntable: the piston rod of the turntable positioning telescopic cylinder extends to drive the moving block to approach the rotating groove, and the turntable is subjected to micro-adjustment;
s7, welding the workpiece: welding the preheated flange plate and the flange shaft;
s8, rotating and moving the workpiece: and the driving device drives the turntable to rotate, so that the welded flange plate and the welded flange shaft rotate to the preheating station, the pressing mechanism moves reversely to loosen the flange plate and the flange shaft, the welded flange plate and the welded flange shaft are taken down, and the flange plate and the flange shaft to be welded are installed.
(III) advantageous effects
The invention has the beneficial effects that:
1. the compressing mechanism and the tensioning mechanism are combined, so that the axial direction and the radial direction of the flange shaft and the flange plate can be fixed, the teeth of the flange shaft are attached to the teeth of the flange plate, and the coaxiality of the flange shaft and the flange plate is high;
2. the workpiece fine positioning mechanism can enable the teeth of the flange shaft to correspond to the teeth of the flange plate, so that the welding precision of a product is high;
3. the driving mechanism is combined with the rotary table fine positioning mechanism, so that the rotary table can drive the flange plate and the flange shaft to rotate, and the flange plate and the flange shaft can be accurately transferred to corresponding stations.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of the driving mechanism of the present invention;
FIG. 3 is a top view of the positioning mechanism of the present invention;
FIG. 4 is a sectional view taken along line F-F of FIG. 3;
FIG. 5 is an enlarged sectional view of the tensioning mechanism of FIG. 3 from F-F;
FIG. 6 is a schematic structural view of an ash receiving device according to the present invention;
FIG. 7 is a top view of the flange shaft and the flange plate of the embodiment;
fig. 8 is an enlarged schematic view of a point a in fig. 5.
[ description of reference ]
1: a welding robot; 2: a turntable; 3: a positioning mechanism; 4: a workpiece fine positioning mechanism; 5: a turntable fine positioning mechanism; 6: a loading and unloading robot; 101: a gear; 102: a servo drive motor; 103: rotating the ring; 201: a base; 202: a grounded telescopic cylinder; 203: a drive shaft; 204: a compression disc; 205: opening the mold; 206. a rotating joint; 207: a second timing pulley; 208: a first timing pulley; 209: a first servo motor; 210: a workpiece positioning telescopic cylinder; 211: positioning blocks; 212: a fixing box; 213: a tensioning block; 214: compressing the bracket; 215: a second servo motor; 216: a lead screw; 217: a first spring; 218: the mandril is pressed tightly; 219: a pressing seat; 220: a first conductive block; 221: a second conductive block; 222: a vent passage; 223: a position sensor; 224: a third bearing; 225: a third synchronous pulley; 226: a fourth timing pulley; 227: a first bearing; 228: a spring guide rod; 229: a second bearing; 230: a support frame; 231: a first synchronization belt; 232 a second synchronous belt; 233: a third guide key; 234: a second spring; 235: a second guide key; 236: a first guide key; 301: a column; 302: rotating the telescopic cylinder; 303: a rotating frame; 304: rotating the ash receiving box; 305: a protection plate; 306: welding the opening; 307: a second sliding plate; 308: a first sliding plate; 401: a flange shaft; 402: a flange plate; 403: flange plate teeth; 501: a moving block; 502: the telescopic cylinder is positioned by the rotary table.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a positioning, clamping and rotating mechanism for welding, which comprises a workbench, a turntable 2, a positioning mechanism 3, a driving mechanism, a turntable fine positioning mechanism 5 and a workpiece fine positioning mechanism 4, wherein the driving mechanism is arranged on the workbench and is in transmission connection with the turntable 2; the driving mechanism is used for driving the turntable 2 to rotate, and the turntable 2 drives the flange shaft 401 and the flange plate 402 to intermittently rotate between the preheating station and the welding station.
The welding machine is characterized in that a preheating station and a welding station are arranged on the workbench, a welding robot 1 is arranged on one side of the workbench, a loading and unloading robot 6 is arranged on the other side of the workbench, the loading and unloading robot 6 is in the prior art, and the flange shaft 401 and the flange plate 402 can be mounted on the positioning mechanism 3 of the preheating station or taken down from the positioning mechanism 3 of the preheating station; the welding robot 1 is a conventional one, and only can weld the flange shaft 401 and the flange plate 402.
The turntable 2 is provided with two positioning mechanisms 3, the two positioning mechanisms 3 can respectively correspond to a preheating station and a welding station, each positioning mechanism 3 comprises a base 201, one end of each base 201 is provided with a supporting frame 230, the supporting frame 230 is rotatably connected with a driving shaft 203 through a first bearing 227 and a second bearing 229, the other end of each base 201 is slidably connected with a pressing mechanism, one end of each driving shaft 203 is in transmission connection with a transmission mechanism, and the middle part of each driving shaft 203 is provided with a tensioning mechanism; the pressing mechanism axially fixes the flange shaft 401 and the flange plate 402, and the tensioning mechanism radially fixes the flange plate 402.
The workpiece fine positioning mechanism 4 is arranged on the base 201 and corresponds to the tensioning mechanism; after the positioning mechanism 3 performs rough positioning on the flange shaft 401 and the flange plate 402, the teeth of the flange shaft 401 completely correspond to the flange plate teeth 403 through the workpiece fine positioning mechanism 4, so that the welding precision of the flange shaft 401 and the flange plate 402 is ensured.
The rotary table fine positioning mechanism 5 is arranged on the side portion of the rotary table 2, the rotary table fine positioning mechanism 5 comprises a rotary table positioning telescopic cylinder 502 and a moving block 501, the fixed end of the rotary table positioning telescopic cylinder 502 is connected with the workbench, the moving block 501 is connected with the telescopic end of the rotary table positioning telescopic cylinder 502, a rotating groove matched with the moving block 501 is formed in the side portion of the rotary table 2, the driving mechanism drives the rotary table 2 to rotate, after the flange shaft 401 and the flange plate 402 move to corresponding stations, the rotary table fine positioning mechanism 5 performs fine positioning on the rotary table 2, the flange shaft 401 and the flange plate 402 are accurately arranged at the corresponding stations, and welding accuracy is guaranteed.
As shown in fig. 3 and 4, the pressing mechanism includes a pressing support 214, a pressing base 219, a pressing rod 218, a screw rod 216, a third synchronous pulley 225 and a fourth synchronous pulley 226, wherein the pressing support 214 is slidably connected to the base 201, the pressing base 219 is disposed at the end of the pressing support 214 close to the tension mechanism, the pressing rod 218 is rotatably connected to the inside of the pressing base 219 through a third bearing 224, the pressing rod 218 corresponds to the driving shaft 203, the screw rod 216 is in threaded connection with the pressing support 214, the third synchronous pulley 225 is in transmission connection with the screw rod 216, a second servo motor 215 is in transmission connection with the side portion of the fourth synchronous pulley 226, the second servo motor 215 is connected to the base 201, and the third synchronous pulley 225 is in transmission connection with the fourth synchronous pulley 226 through a second synchronous belt 232. When the flange plate is used, after the flange plate 402 and the flange shaft 401 are sleeved on the tensioning mechanism, the second servo motor 215 drives the fourth synchronous belt pulley 226 to rotate, the fourth synchronous belt pulley 226 drives the third synchronous belt pulley 225 and the lead screw 216 to rotate, and the lead screw 216 drives the pressing support 214, the pressing base 219 and the pressing ejector rod 218 to move and press the flange shaft 401.
The pressing support 214 is provided with a first conductive block 220 and a grounding telescopic cylinder 202, the telescopic end of the grounding telescopic cylinder 202 is provided with a second conductive block 221, the lateral part of the second conductive block 221 is provided with a grounding wire, and when the grounding telescopic cylinder 202 drives the second conductive block 221 to be attached to the first conductive block 220, the pressing seat 219 and the pressing ejector rod 218 can be grounded, so that the pressing mechanism is prevented from being electrified in the working process, and the personal safety of workers is prevented from being influenced.
Be equipped with location displacement sensor support on the base 201, be equipped with at least one position sensor 223 on the location displacement sensor support, position sensor 223 is prior art, as long as can judge the position that compresses tightly support 214, can confirm through position sensor 223 that compresses tightly support 214 the position go on to whether can confirm to compress tightly ejector pin 218 and compress tightly flange axle 401.
As shown in fig. 5, the tensioning mechanism includes a pressing plate 204, a spreading mold 205, and a fixing box 212, wherein the pressing plate 204, the spreading mold 205, and the fixing box 212 are sequentially sleeved on the driving shaft 203, the pressing plate 204 is connected to the driving shaft 203 through a first guide key 231, the spreading mold 205 is connected to the driving shaft 203 through a second guide key 235 and a third guide key 233, the pressing plate 204 and the spreading mold 205 can slide along the axial direction of the driving shaft 203, the pressing plate 204, the spreading mold 205, and the fixing box 212 can rotate along with the driving shaft 203, the spreading mold 205 is tapered away from the pressing plate 204, a plurality of mounting holes are arranged on the fixing box 212 along the circumferential direction, tensioning blocks 213 are slidably connected in the mounting holes, the tensioning blocks 213 are obliquely arranged near the end surface of the driving shaft 203, and the oblique direction is matched with the oblique direction of the bus of the tapered end of the spreading mold 205, the top end of the tensioning block 213 is provided with a limiting groove, the top end of the mounting hole is provided with an elastic limiting strip, the limiting strip is connected with the limiting groove, and when the opening mold 205 is close to the tensioning block 213, the top end of the tensioning block 213 extends out of the mounting hole and radially tensions the flange plate 402. During the use, earlier with ring flange 402 cover locate fixed box 212 on, again with flange axle 401 cover locate compress tightly on the dish 204, hold-down mechanism compresses tightly flange axle 401, flange axle 401 promotes compress tightly the dish 204 and struts mould 205 and is close to fixed box 212, struts mould 205 and promotes tight piece 213 and stretch out the mounting hole, carries out radial fixation to ring flange 402.
A plurality of compression springs are arranged between the compression disc 204 and the expanding die 205, the compression springs comprise a first spring 217 and a second spring 234, a first spring cavity is arranged at the end of the compression disc 204 close to the expanding die 205, a plurality of first springs 217 are arranged in the first spring cavity, the end of the first spring 217 close to the expanding die 205 is connected with the expanding die 205, a second spring cavity is arranged at the end of the expanding die 205 close to the compression disc 204, a plurality of second springs 234 are arranged in the second spring cavity, the end of the second spring 234 close to the compression disc 204 is connected with the expanding die 205, the end of the second spring 234 far from the compression disc 204 is connected with the driving shaft 203, a spring guide rod 228 is arranged in the second spring cavity, the first spring 217 and the second spring 218 are sleeved on the spring guide rod 228, when the compression disc 204 pushes the expanding die 205 to move, the expanding die 205 can move in the first spring cavity, the impact force of the pressing disc 204 on the expanding die 205 can be relieved through the pressing spring, and the service life is prolonged.
The middle of the driving shaft 203 is provided with a ventilation channel 222 along the axial direction, the driving shaft 203 is provided with a plurality of ventilation holes, the ventilation holes are communicated with the ventilation channel 222 and correspond to the compression springs, and one end of the ventilation channel 222 is connected with a heat radiation fan (not shown in the figure) through a rotary joint 206.
As shown in fig. 3, the transmission mechanism includes a first servo motor 209, a first synchronous pulley 208 and a second synchronous pulley 207, wherein the first servo motor 209 is connected with the base 201, the first synchronous pulley 208 is in transmission connection with the first servo motor 209, the second synchronous pulley 207 is in transmission connection with the driving shaft 203, and the first synchronous pulley 208 and the second synchronous pulley 207 are in transmission connection through a first synchronous belt 231. The driving shaft 203 is driven to rotate through the transmission mechanism, the driving shaft 203 drives the flange shaft 401 and the flange plate 402 to rotate intermittently, and the teeth on the flange shaft 401 and the flange plate 402 are welded one by one.
As shown in fig. 2, the driving mechanism includes a rotating ring 103, a gear 101 and a servo driving motor 102, wherein the rotating ring 103 is rotatably connected with the worktable, a transmission gear is arranged on the outer side of the rotating ring 103, the top end of the rotating ring 103 is connected with the turntable 2, the transmission gear is meshed with the gear 101, the servo driving motor 102 is in transmission connection with the gear 101, and the servo driving motor 102 is connected with the worktable.
As shown in fig. 3, the workpiece fine positioning mechanism 4 includes a workpiece positioning telescopic cylinder 210 and a positioning block 211, the fixed end of the workpiece positioning telescopic cylinder 210 is connected to the base 201, the positioning block 211 is connected to the telescopic end of the workpiece positioning telescopic cylinder 210, and the positioning block 211 is intermittently matched with the interval between adjacent flange teeth 403.
As shown in fig. 6, an ash receiving device is arranged on the side of the workbench close to the welding station, the ash receiving device comprises a rotary ash receiving box 304 and a protection plate 305, wherein the protection plate 305 is provided with a welding port 306, the bottom of the protection plate 305 is provided with a vertical column 301, the welding port 306 corresponds to the fixed box 212, the bottom of the vertical column 301 is connected with the workbench, the side of the vertical column 301 is provided with a first slide rail, the first slide rail is connected with a first slide plate 308 in a sliding manner, the end of the first slide plate 308 close to the workbench is provided with an ash receiving box support plate, the ash receiving box support plate is provided with a second slide rail, the second slide rail is connected with a second slide plate 307 in a sliding manner, the second slide plate 307 is provided with the ash receiving box 304, the bottom of the rotary ash receiving box 304 is provided with a rotary frame 303, the upper end of the rotary frame 303 is provided with a rotary frame slide hole, and the second slide plate 307 is provided with a connecting column, the spliced pole and rotating turret slide opening sliding connection, the rotating turret 303 lower extreme is articulated mutually with stand 301, and the rotating turret 303 bottom is articulated to have and rotates telescopic cylinder 302, the stiff end of rotating telescopic cylinder 302 is connected with the workstation. During the use, welding robot 1 welds the work piece through welding mouth 306, simultaneously, rotates telescoping cylinder 302 drive rotating turret 303 and rotates, and rotating turret 303 drives and rotates and connect ash box 304 to rotate, makes to rotate and connects ash box 304 to stretch into to the welding position below through the tooth between flange axle 401 and flange 402, connects the welding slag of getting the welding in-process production.
The scheme also provides an operation method of the positioning, clamping and rotating mechanism for welding based on any one of the schemes, which comprises the following steps:
s1, mounting a workpiece: sleeving a flange plate 402 on a fixed box 212 of a preheating station, so that a certain tooth on the flange plate 402 corresponds to a positioning block 211; sleeving the flange shaft 401 on the driving shaft 203 of the preheating station, and enabling the teeth on the flange shaft 401 to correspond to the flange disc teeth 403;
s2, pressing the workpiece: the pressing mechanism presses the flange shaft 401 to enable the teeth of the flange shaft 401 to be attached to the flange disc teeth 403;
s3, fine positioning of the workpiece: the piston rod of the positioning telescopic cylinder 210 extends to drive the positioning block 211 to move towards the flange plate 402 and the flange shaft 401, the positioning block 211 extends into a gap between adjacent flange plate teeth 403, and the position of the flange shaft 401 is adjusted to enable the teeth on the flange shaft 401 to completely correspond to the flange plate teeth 403;
s4, preheating the workpiece: preheating a flange shaft 401 and a flange plate 402 which are arranged at a preheating station;
s5, workpiece rotation: the driving device drives the turntable 2 to rotate, so that the preheated flange plate 402 and the flange shaft 401 are arranged at a welding station;
s6, fine positioning of the turntable: the piston rod of the turntable positioning telescopic cylinder extends to drive the moving block to approach the rotating groove, and the turntable 2 is finely adjusted;
s7, welding the workpiece: welding the preheated flange plate 402 and the flange shaft 401;
s8, rotating and moving the workpiece: the driving device drives the turntable 2 to rotate, so that the welded flange plate 402 and the welded flange shaft 401 are transferred to a preheating station, the pressing mechanism moves reversely, the flange plate 402 and the flange shaft 401 are loosened, the welded flange plate 402 and the welded flange shaft 401 are taken down, and the flange plate 402 and the flange shaft 401 to be welded are installed.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a welding is with location clamping rotation mechanism which characterized in that: the device comprises a workbench, a turntable (2), a positioning mechanism (3), a driving mechanism, a turntable fine positioning mechanism (5) and a workpiece fine positioning mechanism (4), wherein the driving mechanism is arranged on the workbench and is in transmission connection with the turntable (2);
a preheating station and a welding station are arranged on the workbench;
the rotary table (2) is provided with at least two positioning mechanisms (3), the positioning mechanisms (3) can respectively correspond to a preheating station and a welding station, each positioning mechanism (3) comprises a base (201), one end of each base (201) is rotatably connected with a driving shaft (203) through a supporting frame (230), the other end of each base (201) is slidably connected with a pressing mechanism, one end of each driving shaft (203) is in transmission connection with a transmission mechanism, and the middle part of each driving shaft (203) is provided with a tensioning mechanism;
the workpiece fine positioning mechanism (4) is arranged on the base (201) and corresponds to the tensioning mechanism;
the rotary table fine positioning mechanism (5) is arranged on the side portion of the rotary table (2), the rotary table fine positioning mechanism (5) comprises a rotary table positioning telescopic cylinder (502) and a moving block (501), the fixed end of the rotary table positioning telescopic cylinder (502) is connected with the workbench, the moving block (501) is connected with the telescopic end of the rotary table positioning telescopic cylinder (502), and a rotating groove matched with the moving block (501) is formed in the side portion of the rotary table (2).
2. The positioning, clamping and rotating mechanism for welding as claimed in claim 1, wherein: the pressing mechanism comprises a pressing bracket (214), a pressing seat (219), a pressing mandril (218), a lead screw (216), a third synchronous pulley (225) and a fourth synchronous pulley (226), wherein the pressing support (214) is connected with the base (201) in a sliding way, the pressing support (214) is rotatably connected with a pressing seat (219) close to the tensioning mechanism end, a pressing mandril (218) is rotatably connected in the pressing seat (219) through a third bearing (224), the pressing mandril (218) corresponds to the driving shaft (203), the lead screw (216) is in threaded connection with the pressing bracket (214), the third synchronous belt wheel (225) is in transmission connection with a lead screw (216), the side part of the fourth synchronous belt wheel (226) is in transmission connection with a second servo motor (215), the second servo motor (215) is connected with the base (201), and the third synchronous pulley (225) is in transmission connection with the fourth synchronous pulley (226) through a second synchronous belt (232).
3. The positioning, clamping and rotating mechanism for welding as claimed in claim 2, wherein: the tensioning mechanism comprises a pressing disc (204), a spreading mold (205) and a fixing box (212), wherein the pressing disc (204), the spreading mold (205) and the fixing box (212) are sequentially sleeved on a driving shaft (203), the pressing disc (204) and the spreading mold (205) can slide along the axial direction of the driving shaft (203), the pressing disc (204), the spreading mold (205) and the fixing box (212) can rotate along with the driving shaft (203), the end, far away from the pressing disc (204), of the spreading mold (205) is tapered, a plurality of mounting holes are formed in the fixing box (212) along the circumferential direction, tensioning blocks (213) are connected in the mounting holes in a sliding mode, the end faces, close to the end of the driving shaft (203), of the tensioning blocks (213) are obliquely arranged, the oblique direction of the tensioning blocks is matched with the oblique direction of a bus of the tapered end of the spreading mold (205), and limit grooves are formed in the top ends of the tensioning blocks (213), the top end of the mounting hole is provided with an elastic limiting strip, the limiting strip is connected with a limiting groove, and when the opening die (205) is close to the tensioning block (213), the top end of the tensioning block (213) extends out of the mounting hole and radially tensions the flange plate (402).
4. The positioning, clamping and rotating mechanism for welding as claimed in claim 3, wherein: a plurality of compression springs are arranged between the compression disc (204) and the expanding die (205).
5. The positioning, clamping and rotating mechanism for welding as claimed in claim 2, wherein: the middle of the driving shaft (203) is provided with a ventilation channel (222) along the axial direction, the driving shaft (203) is provided with a plurality of ventilation holes, the ventilation holes are communicated with the ventilation channel (222), and the ventilation holes correspond to the compression springs.
6. The positioning, clamping and rotating mechanism for welding as claimed in claim 3, wherein: the transmission mechanism comprises a first servo motor (209), a first synchronous pulley (208) and a second synchronous pulley (207), wherein the first servo motor (209) is connected with the base (201), the first synchronous pulley (208) is in transmission connection with the first servo motor (209), the second synchronous pulley (207) is in transmission connection with the driving shaft (203), and the first synchronous pulley (208) is in transmission connection with the second synchronous pulley (207) through a first synchronous belt (231).
7. The positioning, clamping and rotating mechanism for welding as claimed in any one of claims 1 to 6, wherein: the driving mechanism comprises a rotating ring (103), a gear (101) and a servo driving motor (102), wherein the rotating ring (103) is connected with the workbench in a rotating mode, transmission teeth are arranged on the outer side of the rotating ring (103), the top end of the rotating ring (103) is connected with the turntable (2), the transmission teeth are meshed with the gear (101), the servo driving motor (102) is connected with the gear (101) in a transmission mode, and the servo driving motor (102) is connected with the workbench.
8. The positioning, clamping and rotating mechanism for welding as claimed in any one of claims 1 to 6, wherein: the workpiece fine positioning mechanism (4) comprises a workpiece positioning telescopic cylinder (210) and a positioning block (211), the fixed end of the workpiece positioning telescopic cylinder (210) is connected with the base (201), the positioning block (211) is connected with the telescopic end of the workpiece positioning telescopic cylinder (210), and the positioning block (211) is matched with the interval between adjacent flange plate teeth (403).
9. The positioning, clamping and rotating mechanism for welding as claimed in any one of claims 1 to 6, wherein: the workstation is close to welding station side and is equipped with and connects grey device, connect grey device to connect ash box (304) and guard plate (305) including rotating, wherein, be equipped with on guard plate (305) welding mouth (306), and guard plate (305) bottom is equipped with stand (301), stand (301) bottom is connected with the workstation, it is equipped with rotating turret (303) to rotate ash box (304) bottom, rotating turret (303) upper end and stand (301) sliding connection, the lower extreme is articulated mutually with stand (301), and rotating turret (303) bottom articulates there is rotation telescoping cylinder (302), the stiff end that rotates telescoping cylinder (302) is connected with the workstation.
10. An operation method of the positioning, clamping and rotating mechanism for welding according to any one of claims 1 to 9, comprising the following steps: the method comprises the following steps:
s1, mounting a workpiece: sleeving a flange plate (402) on a fixed box (212) of a preheating station, and enabling a certain tooth on the flange plate (402) to correspond to a positioning block (211); sleeving a flange shaft (401) on a driving shaft (203) of a preheating station, and enabling teeth on the flange shaft (401) to correspond to flange disc teeth (403);
s2, pressing the workpiece: the pressing mechanism presses the flange shaft (401) to enable the teeth of the flange shaft (401) to be attached to the teeth (403) of the flange plate;
s3, fine positioning of the workpiece: a piston rod of the positioning telescopic cylinder (210) extends to drive the positioning block (211) to move towards the flange plate (402) and the flange shaft (401), the positioning block (211) extends into a gap between adjacent flange plate teeth (403), and the position of the flange shaft (401) is adjusted to ensure that the flange plate teeth (403) on the flange shaft (401) completely correspond to each other;
s4, preheating the workpiece: preheating a flange shaft (401) and a flange plate (402) which are arranged at a preheating station;
s5, workpiece rotation: the driving device drives the turntable (2) to rotate, so that the preheated flange plate (402) and the flange shaft (401) are arranged at a welding station;
s6, carrying out fine positioning on the turntable: the piston rod of the turntable positioning telescopic cylinder extends to drive the moving block to be close to the rotating groove, and the turntable (2) is finely adjusted;
s7, welding the workpiece: welding the preheated flange plate (402) and the flange shaft (401);
s8, rotating and moving the workpiece: the driving device drives the turntable (2) to rotate, so that the welded flange plate (402) and the welded flange shaft (401) are transferred to a preheating station, the pressing mechanism moves reversely, the flange plate (402) and the welded flange shaft (401) are loosened, the welded flange plate (402) and the welded flange shaft (401) are taken down, and the welded flange plate (402) and the welded flange shaft (401) are installed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210413290.7A CN114505645B (en) | 2022-04-20 | 2022-04-20 | Positioning clamping slewing mechanism for welding and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210413290.7A CN114505645B (en) | 2022-04-20 | 2022-04-20 | Positioning clamping slewing mechanism for welding and operation method thereof |
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| CN114505645A true CN114505645A (en) | 2022-05-17 |
| CN114505645B CN114505645B (en) | 2022-07-26 |
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|---|---|
| CN114505645B (en) | 2022-07-26 |
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