CN115365749B - Multi-station rotating part welding deflection device - Google Patents
Multi-station rotating part welding deflection device Download PDFInfo
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- CN115365749B CN115365749B CN202210915044.1A CN202210915044A CN115365749B CN 115365749 B CN115365749 B CN 115365749B CN 202210915044 A CN202210915044 A CN 202210915044A CN 115365749 B CN115365749 B CN 115365749B
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- 238000003466 welding Methods 0.000 title claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 abstract description 32
- 238000009423 ventilation Methods 0.000 description 6
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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 application discloses a multi-station rotating part welding position changing device, which comprises a driving motor, a main shaft, a rotating station, a gear disc, a first gear, a second gear and a transmission assembly; the driving motor is in transmission connection with the main shaft; the first gear and the second gear are both matched on the main shaft; a plurality of rotating stations are arranged on the gear plate; the driving ends of the rotating stations are connected with the first gears in a transmission way, so that the first gears drive the rotating stations to rotate; the transmission assembly comprises an input end and an output end, the input end is in transmission connection with the second gear, and the output end is in transmission connection with the gear disc; the second gear is provided with a second unidirectional mechanism which enables the second gear to rotate unidirectionally. The utility model provides a multistation rotating member welding positioner through set up multiunit rotatory station on the toothed disc, has solved the rotating member electron beam welding inefficiency's of simplex position technical problem, has realized improving the efficiency of rotating member electron beam welding, has reduced welding cost simultaneously.
Description
Technical Field
The application relates to the technical field of welding equipment, in particular to a multi-station rotating part welding deflection device.
Background
Electron beam welding requires a high vacuum environment, and electron beams generated by high pressure are radioactive, so that vacuum electron beam welding equipment is usually performed in a sealed space which is sealed and radiation-proof and can be evacuated. For spin-welded workpieces, currently vacuum electron beam welding is commonly used with a control motor to effect single-station spin welding of the parts. At present, the electron beam welding efficiency of a single-station rotating piece is low, and the cost is high.
The foregoing is merely provided to facilitate an understanding of the principles of the present application and is not admitted to be prior art.
Disclosure of Invention
The utility model provides a main aim at provides a multistation rotating member welding positioner, aims at solving the technical problem that the rotating member electron beam welding of single station is inefficiency.
In order to achieve the above purpose, the application provides a multi-station rotating member welding position changing device, which comprises a driving motor, a main shaft, a rotating station, a gear disc, a first gear, a second gear and a transmission assembly for driving the gear disc to rotate;
the main shaft and the gear disc are coaxially arranged;
the driving motor is in transmission connection with the main shaft;
the first gear and the second gear are both arranged on the main shaft;
the gear plate is provided with a plurality of rotating stations, and the circumferences of the rotating stations are uniformly distributed on the gear plate;
the rotary stations are provided with driving ends, and the driving ends of the rotary stations are in transmission connection with the first gears, so that the first gears drive the rotary stations to rotate;
the transmission assembly comprises an input end and an output end, the input end is in transmission connection with the second gear, and the output end is in transmission connection with the gear disc;
the second gear is provided with a second unidirectional mechanism which enables the second gear to rotate unidirectionally.
Optionally, the transmission assembly includes a shift shaft, a third gear, and a fourth gear;
the third gear and the fourth gear are both arranged on the displacement shaft;
the third gear is meshed with the second gear;
the fourth gear is meshed with the gear plate.
Optionally, the fourth gear is an arc gear, the arc gear includes an arc, and gear teeth are arranged on the arc.
Optionally, the arc gear comprises two sections of arcs, and the two sections of arcs are equal in length and symmetrically distributed;
the radius of the gear disc is R, the position of the rotating station is N, and the arc lengths of the two sections of arcs are pi R/N.
Optionally, a first unidirectional mechanism for unidirectional rotation of the first gear is arranged on the first gear;
the gear plate is provided with a third unidirectional mechanism which enables the gear plate to rotate unidirectionally;
and the unidirectional rotatable direction of the first gear is opposite to the unidirectional rotatable direction of the second gear, and the unidirectional rotatable direction of the gear disc is opposite to the unidirectional rotatable direction of the first gear.
Optionally, the first unidirectional mechanism, the second unidirectional mechanism, and the third unidirectional mechanism are all ratchet wheels.
Optionally, the rotation station is fitted on the gear disc by means of bearings.
Optionally, the bearing is a thrust bearing.
Optionally, six rotation stations are uniformly distributed on the circumference of the gear plate.
Optionally, the driving end is a fifth gear, and the fifth gear is meshed with the first gear.
The beneficial effect that this application can realize:
the rotation of rotatory station is realized through first gear to this application, can understand the rotation of rotatory station, and through the rotation of drive assembly drive gear disk, realize the transposition of rotatory station, can understand the revolution of rotatory station to this application can realize the welding of multistation, because each part of welding all need pass through clamping, evacuation, welding, heat preservation, ventilation, delivery uninstallation when traditional simplex position welds. And compared with clamping, vacuumizing, ventilation, discharging and taking the workpiece, the actual welding time is relatively short. Therefore, the electron beam welding efficiency of the rotating piece with a single station is relatively low and the cost is high. The multi-station welding device can realize multi-station welding, solves the technical problem that the traditional single-station rotating piece electron beam welding efficiency is low, improves the efficiency of the rotating piece electron beam welding, and reduces the welding cost.
According to the multi-station rotating member welding position changing device, multiple groups of rotating stations are arranged on the gear plate, the technical problem of low welding efficiency of the rotating member electron beam with a single station is solved, the efficiency of welding the rotating member electron beam is improved, and meanwhile welding cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a multi-station rotary member welding position changing device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a gear plate according to an embodiment of the present disclosure when engaged with a fourth gear;
FIG. 3 is a schematic diagram of a gear plate according to an embodiment of the present disclosure when the fourth gear is not engaged with the gear plate;
FIG. 4 is a schematic diagram of a second gear engaged with a third gear according to an embodiment of the present disclosure;
the device comprises a main shaft, a 2-rotation station, a 3-gear disc, a 4-first gear, a 5-second gear, a 6-transmission assembly, a 601-deflection shaft, a 602-third gear, a 603-fourth gear, a 7-circular arc, an 8-second unidirectional mechanism, a 9-first unidirectional mechanism, a 10-driving end and an 11-third unidirectional mechanism.
The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
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.
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, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Electron beam welding requires a high vacuum environment, and electron beams generated by high pressure are radioactive, so that vacuum electron beam welding equipment is usually performed in a sealed space which is sealed and radiation-proof and can be evacuated. For spin-welded workpieces, currently vacuum electron beam welding is commonly used with a control motor to effect single-station spin welding of the parts. Because each part is welded in single-station welding, the parts are subjected to clamping, vacuumizing, welding, heat preservation, ventilation and unloading. And compared with clamping, vacuumizing, ventilation, discharging and taking the workpiece, the actual welding time is relatively short. Therefore, the electron beam welding efficiency of the rotating piece with a single station is relatively low and the cost is high.
Referring to fig. 1, 2, 3 and 4, a first embodiment of a multi-station rotary member welding position changing device of the present application provides a multi-station rotary member welding position changing device, which includes a driving motor, a spindle 1, a rotary station 2, a gear disc 3, a first gear 4, a second gear 5 and a transmission assembly 6 for driving the gear disc 3 to rotate;
the main shaft 1 and the gear disc 3 are coaxially arranged;
the driving motor is in transmission connection with the main shaft 1;
the first gear 4 and the second gear 5 are both arranged on the main shaft 1;
a plurality of rotating stations 2 are arranged on the gear plate 3, and the circumference of the rotating stations 2 is uniformly distributed on the gear plate 3;
the rotary working stations 2 are provided with driving ends 10, and the driving ends 10 of the rotary working stations 2 are in transmission connection with the first gears 4, so that the first gears 4 drive the rotary working stations 2 to rotate;
the transmission assembly 6 comprises an input end and an output end, the input end is in transmission connection with the second gear 5, and the output end is in transmission connection with the gear disc 3;
the second gear 5 is provided with a second unidirectional mechanism 8 which enables the second gear 5 to rotate unidirectionally.
The driving motor, the gear disc 3 and the transmission assembly 6 can be arranged on the base, the main shaft 1 is driven to rotate by the driving motor, the main shaft 1 is matched with the first gear 4, and the first gear 4 is in transmission connection with the driving end 10 of the rotary station 2, so that the rotary station 2 is driven to rotate; the main shaft 1 is matched with a second gear 5, a second unidirectional mechanism 8 which enables the second gear 5 to rotate unidirectionally is arranged on the second gear 5, namely the second gear 5 can only rotate towards one direction, for example, the main shaft 1 rotates positively, the second gear 5 does not rotate, the main shaft 1 rotates reversely, the second gear 5 rotates, and the second gear 5 drives the gear disc 3 to rotate through a transmission assembly 6;
fig. 1 is a top view of the present application, and an electron beam welding apparatus is located above the present application, where an electron beam can be perpendicular to a paper surface to weld a rotation station 2 located in the middle of three rotation stations 2 illustrated in fig. 1, and the working principle of the present application is as follows: first all set up the work piece that needs spin welding on every rotatory station 2, then driving motor drive main shaft 1 rotates towards a direction, the cooperation has first gear 4 and second gear 5 on the main shaft 1, second gear 5 is owing to be provided with the messenger second gear 5 unidirectional rotation's second unidirectional mechanism 8, as shown in fig. 1 and fig. 4, main shaft 1 rotates at this moment and will not drive second gear 5, main shaft 1 drives first gear 4 rotation this moment, first gear 4 is connected with rotatory station 2's drive end 10 transmission, thereby drive rotatory station 2 is rotatory, electron beam can weld the rotatory station 2 that is located the top this moment, after the rotatory station 2 welding of top finishes, driving motor drive main shaft 1 rotates towards another direction, main shaft 1 rotates this moment and will drive second gear 5, second gear 5 drives gear disk 3 through drive assembly 6, thereby for the rotatory station 2 that is located the top is rotated to the below, rotatory station 2 that carries out the welding is rotated and is put as top position department, realize rotatory electron beam welding and is being welded to be the rotatory 2, the rotatory application of being convenient for being welded, can realize the rotatory station 2 through first gear 2, the realization of rotation position that the rotation of rotation position is realized through the rotatory station 2, the rotation of rotation station 2, the realization is the rotation of rotation station 2, the realization of rotation station 2 through the rotation station 2 of rotation station 2, the realization of rotation station 2 is realized through the rotation station 2, the realization of rotation station has been realized through the rotation of rotation station 2, the realization of rotation station has been realized through the rotation station 2, and has been realized through the realization of the rotation station 2, and has the realization station has been realized through the realization work station rotation station has the realization work station 2 and has been welded station rotation station and has heat station rotation station has heat station rotation and has the realization and has been welded station rotation and has the realization. And compared with clamping, vacuumizing, ventilation, discharging and taking the workpiece, the actual welding time is relatively short. Therefore, the electron beam welding efficiency of the rotating piece with a single station is relatively low and the cost is high. The multi-station welding device can realize multi-station welding, solves the technical problem that the traditional single-station rotating piece electron beam welding efficiency is low, improves the efficiency of the rotating piece electron beam welding, and reduces the welding cost.
The transmission assembly 6 is used for transmitting the kinetic energy of the second gear 5 to the gear disc 3 so as to drive the gear disc 3 to rotate, the transmission assembly 6 can be a gear set or the like, for example, by arranging a plurality of groups of gear meshes so as to increase the transmitted torque and enhance the power, and in the embodiment, in order to simplify the structure and reduce the cost, and simultaneously consider the actual requirement, the transmission assembly 6 comprises a deflection shaft 601, a third gear 602 and a fourth gear 603;
the third gear 602 and the fourth gear 603 are both disposed on the displacement shaft 601;
the third gear 602 is meshed with the second gear 5;
the fourth gear 603 meshes with the gear disc 3.
The working principle is as follows: the second gear 5 drives the third gear 602 to rotate, so as to drive the displacement shaft 601 to rotate, the displacement shaft 601 rotates so as to drive the fourth gear 603 to rotate, and the fourth gear 603 rotates so as to drive the gear disc 3 to rotate; through the setting of drive assembly 6 to this application only needs a motor can realize the rotation of rotatory station 2 and the transposition of rotatory station 2, has reduced motor quantity, has practiced thrift manufacturing cost, has reduced the area of this application.
The fourth gear 603 is used for driving the gear disc 3 to rotate, so that transposition of the rotary station 2 is achieved, welding of other rotary stations by electron beams is facilitated, the fourth gear 603 can be a conventional gear, such as a straight gear, a helical gear, a herringbone gear, a bevel gear, a curved gear, a worm gear and the like, and also can be a gear such as an arc gear, in this embodiment, the fourth gear 603 is an arc gear, the arc gear comprises an arc 7, and gear teeth are arranged on the arc 7. The structure of the arc gear is shown in fig. 2 and 3, that is, the arc gear is provided with gear teeth on the arc 7, no gear teeth are provided on the arc 7, that is, the arc 7 is meshed with the gear disc 3, so as to drive the gear disc 3 to rotate, no arc 7 is meshed with the gear disc 3, so that the gear disc 3 cannot be driven to rotate, the fourth gear 603 is set as the arc gear, the length of the arc 7 and the number of the arc 7 of the arc gear are set, so that a circle of fourth gear 603 can be accurately set, the rotating angle of the gear disc 3 can be controlled, each rotating station 2 on the gear disc 3 can be rotated to a designated position, the welding of electron beams is facilitated, the welding precision and the welding quality are improved, a driving motor at the moment can be a common motor, a special motor for accurately controlling the rotating angle is not needed, and the manufacturing cost of the special motor for accurately controlling the rotating angle is greatly reduced compared with that of a motor for accurately controlling the rotating angle, and the manufacturing cost of the common motor is further reduced.
By setting the length of the arc 7 sections of the arc gear and the number of the arc 7 sections, a circle of fourth gear 603 can be accurately set to rotate, the rotation angle of the gear disc 3 can be controlled, each rotation station 2 on the gear disc 3 can rotate to a designated position, the welding of electron beams is facilitated, the length of the arc 7 sections of the specific arc gear and the number of the arc 7 sections can be set according to specific conditions, experiments on site can be conducted, and in addition, the diameter of the arc gear, the diameter of the gear disc 3, the number of teeth, the modulus and the like can be considered;
the radius of the gear disc 3 is R, and the position of the rotary station 2 is N, so that the arc length of each of the two sections of the circular arcs 7 is pi R/N.
In order to realize accurate station conversion, according to the principle that two gears which are meshed and rotated arbitrarily are equal in rotation arc length, when the radius of the gear disc 3 is R, the arc gears are designed into two sections of pi R/N arc length gears which are symmetrically distributed, and the rest of the circumference is not meshed with the gear disc 3, so that the fourth gear 603 meshed with the gear disc 3 on the deflection shaft 601 rotates for one circle, and the gear disc 3 meshed with the fourth gear rotates for 2 pi R/N arc length, namely, the gear disc 3 rotates for one station (360 degrees/N). The radius ratio of the second gear 5 which is elastically and unidirectionally connected with the main shaft 1 through the ratchet wheel to the third gear 602 which is meshed with the main shaft 1 on the deflection shaft 601 is M1, and M is an integer, and M is more than or equal to 1 and less than or equal to N/2. Usually M is taken as 1, so that the main shaft 1 reversely rotates for one circle, and the gear disc 3 is driven to rotate for one station. The fourth gear 603 (radius R) on the shift shaft 601 meshed with the gear disc 3 is only symmetrically distributed for a certain arc length, and the rest is not meshed with the gear disc 3, and the gears thereof are generally vertically symmetrically distributed due to the action of gravity, so that one station conversion can be realized when the main shaft 1 rotates within 270 degrees+90 degrees R/(Nr) to 450 degrees to 90 degrees R/(Nr). Because R/R is less than or equal to 1 and less than or equal to 2 and N is more than or equal to 3 in the design, when R/R is less than or equal to 2 and N is less than or equal to 3, 90 degrees is taken as the maximum value of R/(Nr) to be 60 degrees, and at the moment, the main shaft 1 can realize the change of one station only by rotating 330 degrees to 390 degrees, and 360 degrees of accurate rotation of the main shaft 1 is not needed, namely the safety margin of the rotation angle required by the change of the main shaft 1 for one station is +/-30 degrees. When the stations are more and N is larger, the safety margin of the rotation angle of the main shaft 1 changing an angle is larger. Thereby ensuring the accurate change of the stations in design.
As shown in fig. 2 and 3, a first unidirectional mechanism 9 for unidirectional rotation of the first gear 4 is arranged on the first gear 4; the gear disc 3 is provided with a third unidirectional mechanism 11 which enables the gear disc 3 to rotate in one direction; and the unidirectional rotatable direction of the first gear 4 is opposite to the unidirectional rotatable direction of the second gear 5, and the unidirectional rotatable direction of the gear disc 3 is opposite to the unidirectional rotatable direction of the first gear 4. For example, when the main shaft 1 rotates positively, the first gear 4 is driven to rotate positively; due to the limitation of the second unidirectional mechanism 8, the second gear 5 cannot rotate, namely the gear disc 3 cannot rotate, and the rotary station 2 cannot shift, when the main shaft 1 is reversed, the second gear 5 is driven to rotate reversely, and the gear disc 3 is driven to rotate, so that the rotary station 2 can shift, due to the limitation of the first unidirectional mechanism 9, the first gear 4 cannot rotate reversely, and the rotary station 2 cannot be driven to rotate, the rotary station 2 cannot rotate during shifting, and the safety of a workpiece during shifting is guaranteed. The third unidirectional mechanism 11 is used for enabling the gear disc 3 to rotate in a unidirectional mode, the rotation direction of the gear disc 3 is the rotation direction of the gear disc 3 driven by the fourth gear 603, accordingly, the gear disc 3 is prevented from reversing, the deflection precision of the rotary station 2 is affected, and the deflection precision is improved.
As shown in fig. 2, 3 and 4, the second unidirectional mechanism 8 is configured to unidirectional rotate the second gear 5, the first unidirectional mechanism 9 is configured to unidirectional rotate the first gear 4, the third unidirectional mechanism 11 is configured to unidirectional rotate the gear disc 3, the first unidirectional mechanism 9 and the second unidirectional mechanism 8 may be configured in a known structure, such as a ratchet structure, and in this embodiment, the first unidirectional mechanism 9, the second unidirectional mechanism 8 and the third unidirectional mechanism 11 are all ratchet wheels. The ratchet wheel is of a known structure, is defined as a gear with a rigid tooth-shaped surface or friction surface on the outer edge or the inner edge, and is an important component for forming the ratchet mechanism. The ratchet wheel is pushed by a pawl to perform stepping movement, and the meshing movement is characterized in that the ratchet wheel can only rotate in one direction and cannot be reversed. When the driving member rocker swings anticlockwise, the driving pawl is inserted into the tooth groove of the ratchet wheel to push the ratchet wheel to rotate through an angle, and at the moment, the stopping pawl slides on the tooth back of the ratchet wheel. When the driving member rocker swings clockwise, the pawl prevents the ratchet wheel from rotating in a clockwise direction, and the driving pawl is able to slide over the back of the ratchet teeth so that the ratchet wheel is stationary. Thus, when the rocker swings continuously and reciprocally, the ratchet wheel moves intermittently in one direction. Wherein the reciprocating swing of the driving member can be obtained by a swing follower cam mechanism, a crank rocker mechanism or by hydraulic transmission, electromagnetic devices and the like. In this embodiment, the ratchet wheel acts to rotate the gear wheel 3, the first gear 4 and the second gear 5 in one direction, wherein in order to ensure that the unidirectional rotation direction of the first gear 4 is opposite to the unidirectional rotation direction of the second gear 5, the unidirectional rotation direction of the gear wheel 3 is opposite to the unidirectional rotation direction of the first gear 4. The rotation direction of the ratchet wheel of the second unidirectional mechanism 8 is opposite to the rotation direction of the ratchet wheel of the first unidirectional mechanism 9, and the rotation direction of the ratchet wheel of the third unidirectional mechanism 11 is opposite to the rotation direction of the ratchet wheel of the first unidirectional mechanism 9.
The circumference equipartition of a plurality of rotatory station 2 is on gear plate 3, and the drive end 10 of rotatory station 2 of first gear 4 drive makes it take place to rotate, in order to guarantee the stability that rotatory station 2 is connected with gear plate 3 and guarantee that rotatory station 2 can be effective and normal rotation, in this embodiment, rotatory station 2 passes through the bearing fit on the gear plate 3. The rotary station 2 is arranged on the gear disc 3 through the bearing, when the rotary station 2 rotates, the gear disc 3 cannot rotate due to the action of the bearing, so that the normal rotation of the rotary station 2 is effectively ensured, and the transmission efficiency is improved.
The function of the bearing is to ensure the connection between the rotating station 2 and the gear disc 3, so that the first gear 4 drives the rotating station 2 to rotate, and the bearing can be a sliding bearing, a knuckle bearing, a rolling bearing, a deep groove ball bearing angle, a contact ball bearing and the like.
A plurality of the rotating stations 2, such as 2, 3, 4, etc., may be circumferentially and uniformly distributed on the gear plate 3, and in this embodiment, six of the rotating stations 2 are circumferentially and uniformly distributed on the gear plate 3 in order to take into account the machining efficiency and ensure that the stress of the gear plate 3 is uniform. Six interval between the rotatory station 2 is equal, evenly sets up on the gear plate 3 round gear plate 3 circumference to make gear plate 3 atress even, improved the stability of gear plate 3.
The driving end 10 is in transmission connection with the first gear 4 to transmit power to the rotary station 2 for rotating, and the driving end 10 may be a gear set or other existing driving components, for example, by providing multiple sets of gear engagement, so that the transmitted torque is increased and the power is enhanced. The drive end 10 is arranged to mesh with the first gear 4 with a fifth gear so that the power of the first gear 4 can be effectively transmitted to the drive end 10, thereby rotating the rotary station 2.
To sum up, this application realizes the rotation of rotatory station 2 through driving motor drive first gear 4, can understand as the rotation of rotatory station 2, when the welding of welded rotatory station 2 finishes the back, driving motor reversal passes through drive assembly 6 drive gear disk 3 and rotates, realize the transposition of rotatory station 2, can understand as the revolution of rotatory station 2 to realize welding another rotatory station 2, and then this application can realize the welding of multistation, because each part of welding all needs to pass through clamping, evacuation, welding, keep warm, ventilate, the unloading of delivering from the warehouse when traditional single-station welding. And compared with clamping, vacuumizing, ventilation, discharging and taking the workpiece, the actual welding time is relatively short. Therefore, the electron beam welding efficiency of the rotating piece with a single station is relatively low and the cost is high. The multi-station welding device can realize multi-station welding, solves the technical problem that the traditional single-station rotating piece electron beam welding efficiency is low, improves the efficiency of the rotating piece electron beam welding, and reduces the welding cost. Meanwhile, the fourth gear 603 is set to be an arc gear, the length of the arc 7 section of the arc gear and the number of the arc 7 sections are set, so that the rotating angle of the circle of fourth gear 603 can be accurately set, the rotating angle of the gear disc 3 can be controlled, each rotating station 2 on the gear disc 3 can rotate to a designated position, welding of electron beams is facilitated, welding precision and welding quality are improved, a driving motor at the moment can be an ordinary motor, transposition work can be completed without a special motor for accurately controlling the rotating angle, and the cost of the ordinary motor is much lower than that of the motor for accurately controlling the rotating angle due to the fact that the special motor for accurately controlling the rotating angle is high in manufacturing cost, so that the manufacturing cost of the device is further reduced, the pre-examination expense of a factory is reduced, and environmental protection is facilitated.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.
Claims (10)
1. The multi-station rotating part welding position changing device is characterized by comprising a driving motor, a main shaft, a rotating station, a gear disc, a first gear, a second gear and a transmission assembly for driving the gear disc to rotate;
the main shaft and the gear disc are coaxially arranged;
the driving motor is in transmission connection with the main shaft;
the first gear and the second gear are both arranged on the main shaft;
the gear plate is provided with a plurality of rotating stations, and the circumferences of the rotating stations are uniformly distributed on the gear plate;
the rotary stations are provided with driving ends, and the driving ends of the rotary stations are in transmission connection with the first gears, so that the first gears drive the rotary stations to rotate;
the transmission assembly comprises an input end and an output end, the input end is in transmission connection with the second gear, and the output end is in transmission connection with the gear disc;
the second gear is provided with a second unidirectional mechanism which enables the second gear to rotate unidirectionally.
2. A multi-station rotational member welding indexing apparatus as claimed in claim 1, wherein the drive assembly includes an indexing shaft, a third gear and a fourth gear;
the third gear and the fourth gear are both arranged on the displacement shaft;
the third gear is meshed with the second gear;
the fourth gear is meshed with the gear plate.
3. A multi-station rotary member welding position changing device as defined in claim 2 wherein the fourth gear is an arc gear, the arc gear comprising an arc with teeth disposed thereon.
4. A multi-station rotary member welding position changing device according to claim 3, wherein said arc gear comprises two segments of said arcs, and said two segments of said arcs are equally long and symmetrically distributed;
the radius of the gear disc is R, the position of the rotating station is N, and the arc lengths of the two sections of arcs are pi R/N.
5. A multi-station rotary member welding position changing apparatus according to claim 1, wherein,
the first gear is provided with a first unidirectional mechanism which enables the first gear to rotate unidirectionally;
the gear plate is provided with a third unidirectional mechanism which enables the gear plate to rotate unidirectionally;
and the unidirectional rotatable direction of the first gear is opposite to the unidirectional rotatable direction of the second gear, and the unidirectional rotatable direction of the gear disc is opposite to the unidirectional rotatable direction of the first gear.
6. A multiple station rotational member welding indexing device as defined in claim 5 wherein said first unidirectional mechanism, said second unidirectional mechanism and said third unidirectional mechanism are ratchet mechanisms comprising ratchet and pawl.
7. A multiple station rotary member welding position changing apparatus as defined in claim 1 wherein said rotary stations are mounted to said gear plate by bearings.
8. A multiple station rotational member weld indexing apparatus as claimed in claim 7, wherein the bearing is a thrust bearing.
9. A multi-station rotary member welding position changing device as defined in claim 1 wherein six of said rotary stations are circumferentially and uniformly distributed on said gear plate.
10. A multiple station rotary member welding position changing apparatus according to claim 1 wherein said drive end is a fifth gear, said fifth gear being in mesh with said first gear.
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