Rotary tool applied to electron beam welding

Abstract

The invention discloses a rotating tool applied to electron beam welding, and belongs to the technical field of electron beam welding, the rotating tool comprises a main rotating module, a revolution driving rack module, a gear module, a rotating support module and a bottom plate module, and the main rotating module comprises a main revolution body and a plurality of clamping assemblies; the revolution driving rack module is in transmission connection with the main revolution body; the gear module is used for transmitting drive between a chuck of the electron beam welding machine and the clamping assembly; the rotary bracket module supports the main rotary body; the bottom plate module supports the revolution driving rack module and the rotating bracket module; the gear module drives the clamping assemblies to rotate, meanwhile, the driving mechanism drives the multiple clamping assemblies to revolve, the two kinds of movement are independently controlled, the size of the device and the number of the assemblies are effectively reduced, welding of multiple sets of parts can be completed through one-time vacuum pumping, the structure is simple, positioning is accurate, running is smooth, clamping is reliable and stable, and operation is convenient. The method is suitable for an electron beam welding process and improves production efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electron beam welding, and particularly relates to a rotating tool applied to electron beam welding. BACKGROUND

[0002] In the welding process of small-batch tubular, columnar and other metal parts, a special tool clamp is usually needed to realize a series of processes such as feeding, clamping, welding and discharging. If the traditional mode of repeated clamping is adopted, the production efficiency is not high. For electron beam welding, there is no effective tool clamp at present, because electron beam welding is a welding method that uses a focused high-speed electron beam to bombard the joint of a workpiece in a vacuum environment to generate heat, thereby melting the welded metal. This method has the advantages of strong penetration, high speed, small deformation, high quality, and is especially suitable for the welding of butt joints of tubular and columnar metal parts.

[0003] Before electron beam welding is carried out, vacuum must be developed, and the space of the vacuum chamber is limited, so the welding tool not only needs to adapt to the vacuum environment, but also should have the characteristics of simple structure and compact design. In addition, in order to ensure that the electron beam emitted by the welding machine can be accurately focused to improve the welding quality, the position of the part in the height direction needs to meet certain conditions, which puts higher requirements on the movement and repeated positioning accuracy of the welding tool.

[0004] At present, although there are some tool clamps in the prior art, there is no tool clamp suitable for the above welding process, and the following problems exist:

[0005] (1) Complex mechanical structure, difficult to maintain

[0006] The existing scheme adopts gear train, cam set, clutch and other structures to realize the self-rotation movement of the welded part and the switching of the work station, and the driving source is the rotating main shaft motor of the electron beam welding machine. The transmission structure and the driving device are connected by a shaft coupling, the clutch on the main disc structure is connected with the main shaft through a key, connected with the left and right end cover discs through a clamping groove, and connected with the main disc through a screw. The overall mechanical structure and transmission relationship are relatively complex. The mechanical transmission structure is easy to wear after long-term use, which not only has the risk of failure, but also affects the movement accuracy.

[0007] (2) Two kinds of motion are coupled, and it is difficult to ensure control accuracy

[0008] The existing scheme adopts the rotating spindle motor of the electron beam welding machine as the only driving source of the system, and provides torque with opposite directions and different sizes through the spindle motor to realize the rotation of the welding part and the switching motion of the station. During the welding process, the spindle motor of the electron beam welding machine rotates forward to drive the part to rotate, and then reverses to switch the station after each part is welded. The positioning and locking of each station are realized through the spring and roller structure. Kinematic analysis of the structure shows that the rotation speed during the switching of the station will be six times the rotation speed of the part. When the rotation of the part and the switching of the station are converted, the motion direction and speed of the spindle motor change suddenly, and the spring locking is prone to overshoot and lag, which is not conducive to ensuring the control accuracy and affects the welding processing effect.

[0009] (3) Poor clamping performance, strong interference between parts

[0010] All three-jaw chucks and centers of the existing scheme are located on two discs. Since the welded parts have fixed size parameters, the clamping force of each part will affect each other when clamped one by one, resulting in inconsistent clamping state of the parts, which is not conducive to ensuring the consistency of the part welding quality. During the electron beam welding process, the weld will first expand and then shrink, and the first welded part will cause insufficient clamping force of the weld of other unwelded parts, further affecting the welding effect. SUMMARY

[0011] The present application aims to solve the technical problem that there is currently a lack of effective tooling fixtures suitable for electron beam welding processes. To this end, the present application provides a rotating tooling device for electron beam welding, which is suitable for electron beam welding processes and can switch between multiple stations to perform electron beam welding of multiple groups of parts, thereby improving production efficiency.

[0012] The present application provides a rotating tooling device for electron beam welding, which comprises:

[0013] A main rotating module, comprising a main rotating body and a plurality of clamping assemblies, the main rotating body having opposite second and first ends, the plurality of clamping assemblies being arranged in a ring around the main rotating body, the abutting end of the clamping assembly passing through the second end of the main rotating body, the clamping assembly being used to clamp and fix the parts to be welded;

[0014] A revolution driving frame module, rotationally connected to the first end of the main rotating body, the revolution driving module having a built-in driving mechanism, the output end of the driving mechanism being in transmission connection with the main rotating body;

[0015] A gear module, comprising a main gear and a plurality of secondary gears meshing with the main gear, the plurality of secondary gears being arranged in a ring around the outer edge of the main gear, the main gear being used to abut the chuck of the electron beam welding machine, and the secondary gear being connected to the abutting end of the clamping assembly;

[0016] A rotating support module, supporting and mounting the second end of the main rotating body;

[0017] A base module is used to fix to the work platform of the electron beam welding machine, and the two ends of the base module support and connect the revolution driving frame module and the rotation support module, respectively.

[0018] The first end of the main rotary body is driven by the driving mechanism to make the plurality of clamping assemblies revolve in a circle, and the main gear is driven by the chuck to make the secondary gear rotate with the main gear, and meanwhile each clamping assembly rotates.

[0019] In some embodiments, when the plurality of clamping assemblies rotate, the plurality of secondary gears rotate synchronously with the clamping assemblies.

[0020] In some embodiments, when the plurality of clamping assemblies revolve in a circle, the plurality of secondary gears rotate with the main rotary body.

[0021] In some embodiments, the rotation support module comprises a rotation support and a gear protective cover, the main gear and the plurality of secondary gears are enclosed in the second end of the main rotary body, and the gear protective cover is fixed to the rotation support.

[0022] In some embodiments, the rotation support module further comprises a roller assembly installed in the gear protective cover, the roller assembly is rotatable relative to the main rotary body and is used to support the main rotary body.

[0023] In some embodiments, the main rotation module further comprises a clamping assembly, the clamping chuck is fixed to the main rotary body, the clamping assembly corresponds to the clamping chuck one by one, the clamping assembly is slidable relative to the clamping chuck in the direction from the second end to the first end of the main rotary body, and the clamping chuck and the clamping assembly are used to fix the two ends of the parts to be welded.

[0024] In some embodiments, the clamping assembly comprises a guide rail, a sliding block and a clamp, the guide rail is installed on the main rotary body in the direction from the second end to the first end of the main rotary body, and the clamp is connected to the sliding block and is used to fix the relative position of the sliding block and the guide rail.

[0025] In some embodiments, the clamping assembly comprises a center, a seat, a locking device and a driving part, the center is used to fix the parts to be welded, the center is connected to the seat, the seat is fixed to the sliding block, the driving part is connected to the center and is used to drive the center to move back and forth in the direction from the second end to the first end, and the locking device is used to fix the position of the center relative to the guide rail.

[0026] In some embodiments, the main rotation module further comprises a protective ring, the protective ring is sleeved on the outer edge of the second end of the main rotary body, and the protective ring is in rotational contact with the roller assembly.

[0027] In some embodiments, a lifting ring is further included for lifting and is fixed to the revolution driving frame module and the rotation support module.

[0028] From the above technical solutions, the beneficial effects of the present application are:

[0029] At present, there is a lack of effective tooling fixtures suitable for electron beam welding process, the present application clamps and fixes the parts to be welded through a plurality of clamping assemblies, so as to electron beam weld a plurality of parts to be welded, drives the main rotating body to rotate through the driving mechanism, so that the plurality of clamping assemblies can switch the station in turn, so as to electron beam weld different parts to be welded, through the meshing of the main gear and the plurality of secondary gears, the chuck of electron beam welding can drive the plurality of clamping assemblies to rotate, so as to realize the rotation of the plurality of parts to be welded. The present application can realize the welding of a plurality of parts to be welded by automatic means once vacuumizing, and ensure that the parts in each welding station do not interfere with each other and are tightly and reliably clamped, and the switching of the station is convenient; thus the present application is suitable for electron beam welding process, can switch multiple stations to perform electron beam welding of multiple groups of parts, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be simply introduced one by one below, and obviously, the drawings in the following description are some embodiments of the present application, and other embodiments and drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings, various schematic diagrams according to the embodiments of the present application are shown, which are not necessarily drawn to scale, some details are exaggerated for the purpose of clear expression, and some details can be omitted.

[0031] Figure 1 An embodiment schematic diagram of the rotating tooling applied to electron beam welding of the present application is shown;

[0032] Figure 2 An embodiment schematic diagram of the rotating tooling applied to electron beam welding of the present application is shown;

[0033] Figure 3 An embodiment schematic diagram of the main rotating module of the present application is shown;

[0034] Figure 4 A partial embodiment schematic diagram of the main rotating module of the present application is shown;

[0035] 100, main rotating module; 110, main rotating body; 111, first end; 112, second end; 120, clamping assembly; 121, three-jaw chuck; 130, tightening assembly; 131, guide rail; 132, sliding block; 133, clamp; 134, center; 135, seat body; 136, locker; 137, driving piece; 140, protection ring; 200, revolution driving frame module; 210, driving mechanism; 220, frame; 300, gear module; 310, main gear; 320, auxiliary gear; 400, rotating support module; 410, rotating support; 420, gear protection cover; 430, roller assembly; 440, lifting ring; 500, bottom plate module; 600, chuck of electron beam welding machine; 700, part to be welded. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely in the following detailed description of the embodiments of the present application in combination with the drawings corresponding to the specific embodiments of the present application. The detailed description of the embodiments of the present application provided in the following drawings is not intended to limit the scope of the present application claimed, and the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, various different configurations can be arranged and designed, and all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0037] The present application will be described below in combination with the drawings and with reference to specific embodiments:

[0038] Please refer to Figure 1 and Figure 4The embodiment of the application provides a rotary tool applied to electron beam welding, which comprises a main rotary module 100, a revolution driving rack module 200, a gear module 300, a rotary support module 400 and a bottom plate module 500, the main rotary module 100 comprises a main rotary body 110 and a plurality of clamping assemblies 120, the main rotary body 110 is integrally formed by aluminum alloy and can also be made of stainless steel, so that the main rotary body 110 is not abraded during operation, the main rotary body 110 is in a cylindrical shape, the main rotary body 110 has a second end 112 and a first end 111 opposite to each other, the second end 112 is the right end in the drawing, the first end 111 is the left end in the drawing, the second end 112 of the main rotary body 110 is outwardly protruded in a circumferential direction to form an annular structure, so that the second end 112 of the main rotary body 110 is in a flange shape, the first end 111 of the main rotary body 110 is outwardly protruded with a column structure on an end face, and is connected with a bearing to support and butt the revolution driving rack module 200, and a round nut can be used to lock the bearing; the plurality of clamping assemblies 120 are arranged at intervals on the main rotary body 110, specifically, the second end 112 of the main rotary body 110 is provided with a plurality of butt joints at intervals around a circumference, the right end of the clamping assembly 120 is installed at the butt joint, and the clamping assembly 120 is rotatable relative to the main rotary body 110, the butt joint end of the clamping assembly 120 penetrates through the second end 112 of the main rotary body 110, that is, the right end of the clamping assembly 120 is axially outwardly protruded with a butt joint end, the butt joint end penetrates through the butt joint and extends out of the outer end face of the second end 112 of the main rotary body 110, the clamping assembly 120 is used for clamping and fixing a part 700 to be welded, and the clamping assembly 120 is internally provided with a clamping position used for clamping the part 700 to be welded.

[0039] Please refer to Figure 2, the first end 111 of the main rotating body 110, and the driving mechanism 210 is built in the revolution driving frame module. The driving mechanism 210 adopts a conventional driving device capable of driving the main rotating body 110 to rotate. The output end of the driving mechanism 210 is in transmission connection with the main rotating body 110, that is, the output end of the driving mechanism 210 is in butt joint with the column structure of the first end 111 of the main rotating body 110, and a shaft coupling, a spline connection or other conventional connection mode can be adopted. The first end 111 of the main rotating body 110 is driven by the driving mechanism 210, so that the plurality of clamping assemblies 120 drive the to-be-welded parts 700 to revolve, and the to-be-welded parts 700 make a circular motion along with the main rotating body 110 in the vertical direction. The gear module 300 includes a main gear 310 and a plurality of sub-gears 320 in mesh with the main gear 310. The plurality of sub-gears 320 are arranged along the outer edge of the main gear 310 and are spaced apart. The main gear 310 is used to butt joint with the chuck 600 of the electron beam welder, and the sub-gears 320 are connected with the butt joint ends of the clamping assemblies 120. The main gear 310 is driven by the chuck, so that the sub-gears 320 rotate along with the main gear 310, and each clamping assembly 120 rotates at the same time, thereby realizing the rotation of the to-be-welded parts 700. The plurality of sub-gears 320 are located at the outer end surface of the first end 111 of the main rotating body 110. The butt joint end of each clamping assembly 120 is connected with a sub-gear 320, and the two are fixed with each other. The main gear 310 can effectively output torque to the clamping assemblies 120. The main gear 310 can be installed on the rotating support module 400. For example, the shaft of the main gear 310 is installed at the bearing of the rotating support module 400, and the main gear 310 has a spacing with the main rotating body 110.

[0040] The rotating support module 400 supports and installs the second end 112 of the main rotating body 110. The rotating support module 400 is provided with a position or mounting port for installing the second end 112 of the main rotating body 110. The annular structure of the main rotating body 110 is in rotation connection with the rotating support module 400. The bottom ends of the rotating support module 400 and the revolution driving frame module 200 are respectively and spaced apart installed on the bottom plate module 500. The bottom plate module 500 is used to be fixed to the working platform of the electron beam welder. In this way, the whole rotating tool is installed in a region that can be vacuumized, thereby facilitating electron beam welding. The two ends of the bottom plate module 500 support and connect the revolution driving frame module 200 and the rotating support module 400. Specifically, the bottom plate module 500 is in a plate shape and directly contacts with the T-shaped groove platform of the electron beam welder. Screws are used for fixed installation. The bottom plate module 500 is used to bear the whole rotating tool. The bottom plate module 500 is integrally processed from an aluminum alloy block. It has good flatness and parallelism between the upper and lower installation surfaces. As a base, the bottom plate module 500 provides support for the revolution driving frame module 200 and the rotating support module 400 and ensures the installation and positioning accuracy. The bottom of the bottom plate module 500 is also provided with a positioning boss for embedding into the T-shaped groove of the welder during installation to assist positioning.

[0041] At present, there is a lack of effective tooling fixtures suitable for electron beam welding process. When the existing tooling fixtures are used for electron beam welding of parts, vacuum conditions are required. At present, only one group of parts can be welded at a time for each vacuuming. For example, for a certain type of electron beam welder, the vacuuming time is about 15 minutes, which is much longer than the welding time of about 5 minutes. This not only increases resource waste and work intensity, but also seriously affects the efficiency of welding production. When the present application is used, the rotary tooling is first installed on the T-shaped groove platform of the electron beam welder. The entire rotary tooling is within the vacuuming range. Through one-time vacuuming, the welding of multiple groups of parts to be welded 700 can be completed. The switching of the welding stations is realized by rotating the main revolving body 110 driven by the driving mechanism 210, the mechanical structure and transmission are simplified, and the convenience of assembly and maintenance is effectively improved. At the same time, the multiple clamping assemblies 120 revolve with the main revolving body 110, realizing the switching of the parts to be welded 700 at each station. The chuck for electron beam welding is driven to rotate by gear engagement, thereby decoupling the revolution and rotation of the clamping assembly 120, and the processes between the parts do not affect each other. On the other hand, the present application has a compact and simple structure, which ensures the repeatability and positioning accuracy of the rotary switching station, ensures the clamping accuracy of the parts, and can adapt to machining parts within a certain size range.

[0042] Please refer to Figure 2 In some embodiments, the revolution driving frame module 200 provides installation support and driving force for the rotation of the main revolving body 110, including a frame 220. The frame 220 is a support body, which is integrally processed by aluminum alloy. The top is provided with a lifting ring 440, which is used for convenient connection when the rotary tooling is installed and used, so as to be hoisted to the T-shaped groove platform of the vacuum electron beam welder. The upper part of the frame 220 is processed with a bearing mounting hole, which cooperates with a bearing end cover to realize the installation of the bearing of the first end 111 of the main revolving body 110. A vacuum servo motor and a vacuum speed reducer drive the main revolving body 110 to make a revolution motion for switching stations. The revolution angle is detected and fed back by a rotary transformer. The in-place locking is realized by the motor itself. A home switch is introduced to determine the reference zero position of the revolution motion of the rotary tooling. The control accuracy of the motor ensures the motion and repeatability and positioning accuracy of the main revolving body 110. The present application can adapt to the vacuum environment. A mechanical interface matched with the electron beam welder is designed. Considering that the electron beam trajectory in the vacuum chamber is easily disturbed during the welding process, a motor shield is designed to contain the vacuum servo motor, thereby shielding the electromagnetic interference generated during the operation of the motor to the maximum extent, and ensuring the welding accuracy and quality.

[0043] In some embodiments, the plurality of sub-gears 320 rotate synchronously with the clamping assemblies 120 when the plurality of clamping assemblies 120 rotate. The clamping assemblies 120 and the tightening assemblies 130 in this embodiment are arranged in 8 groups, and the 8 groups of clamping assemblies 120 and the tightening assemblies 130 are arranged at intervals around the outer periphery of the cylindrical main revolving body 110, so that 8 welding stations are provided, and the parts 700 to be welded are fixed on the welding stations have two kinds of movements: one is that the vacuum servo motor drives the main revolving body 110 to rotate by a certain angle to change the parts under the electron beam of the welding machine to realize the station switching, which is hereinafter referred to as "revolution"; the other is that the main shaft motor of the electron beam welding machine is connected to the rotating chuck to drive the main gear 310 to rotate, and at the same time, the eight sub-gears 320 are rotated to realize the rotation of the parts during the welding process. In order to reduce the difficulty of system integration and consider the operation convenience and intuition, the control terminal of the welding machine and the use method remain unchanged, and the station switching is controlled by the newly added human-computer interaction terminal (touch screen). The structure and function of each module will be introduced one by one below.

[0044] In some embodiments, when the plurality of clamping assemblies 120 revolve, the plurality of sub-gears 320 revolve with the main revolving body 110, and the sub-gears 320 roll relative to the outer edge of the main gear 310; that is, the sub-gears 320 revolve on the outer edge of the main gear 310 and also spin at a certain angle due to the meshing with the main gear 310, and the main gear 310 does not move at this time. When the plurality of clamping assemblies 120 revolve, the plurality of clamping assemblies 120 rotate with the main revolving body 110, and the station switching of the clamping assemblies 120 is realized by revolution, so that only one vacuum operation is required during the welding process, and the welding of multiple parts can be realized only by the revolution of the clamping assemblies 120 when welding different parts 700 to be welded, thereby improving the production efficiency.

[0045] Please refer to Figure 1 and Figure 2In some embodiments, the rotating support module 400 comprises a rotating support 410 and a gear protection cover 420. The top end of the rotating support 410 is provided with a lifting ring 440 for hoisting, and the bottom end of the rotating support 410 is installed on the bottom plate module 500 for providing support. The gear protection cover 420 encloses the main gear 310 and the plurality of pinion gears 320 at the second end 112 of the main revolving body 110. The gear protection cover 420 is fixed to the top end of the rotating support 410 and has a box shape with a space for accommodating the gear module 300. The gear protection cover 420 is used to prevent the gear module 300 from causing harm or affecting the outside during operation. The gear protection cover 420 is provided with an axle hole in which a bearing is installed. The wheel shaft of the main gear 310 is connected with a driving shaft coaxial with the main revolving body 110. The driving shaft is installed on the bearing, and the end of the driving shaft extends out of the gear protection cover 420 and is connected to the chuck clamping transition shaft through a shaft coupling, and then connected to the chuck. During welding operation, the spindle motor of the electron beam welding machine drives the main gear 310 to rotate with the original chuck, and the pinion gears 320 are driven to rotate, realizing the rotation function of the welded parts.

[0046] Please refer to Figure 3 In some embodiments, the rotating support module 400 further comprises a roller assembly 430 installed in the gear protection cover 420. The roller assembly 430 is rotatable relative to the main revolving body 110 and is used to support the main revolving body 110. The roller assembly 430 comprises two sets of rollers, a wheel seat and a hinge pin. The wheel seat is fixed in the gear protection cover 420 by screws. The two wheel seats are fixed in the gear protection cover 420 at intervals. The rollers are installed in the wheel seat by the hinge pin. The distance between the two rollers can be adjusted by screws to facilitate the adjustment of the height in cooperation with the revolution driving rack module 200. The outer edge of the annular structure of the second end 112 of the main revolving body 110 is sleeved with a protection ring 140 and fixed by screws. The protection ring 140 moves with the main revolving body 110. The protection ring 140 is arranged to protect the second end 112 of the main revolving body 110. The protection ring 140 is in contact with the roller assembly 430 in rotation. The protection ring 140 can be placed on the two rollers to support the main revolving body 110 on the two rollers.

[0047] Please refer to Figure 3 and Figure 4In some embodiments, the main rotary body 110 further comprises a clamping assembly 130, the clamping assembly 120 is fixed to the main rotary body 110, the clamping assembly 120 adopts a three-jaw chuck 121 for positioning one end of the part, the clamping assembly 130 corresponds to the three-jaw chuck 121 one by one and is kept in the same horizontal line, the clamping assembly 130 is slidable relative to the three-jaw chuck 121 along the direction from the second end 112 to the first end 111 of the main rotary body 110, and the three-jaw chuck 121 and the clamping assembly 130 are used for fixing two ends of the part to be welded 700. Since the relative position of the clamping assembly 130 and the three-jaw chuck 121 can be adjusted, the clamping and clamping effects of the part to be welded 700 can be optimized by using the clamping assembly 130, which not only can adapt to parts within a certain size range, but also can ensure the firmness and reliability of the clamping and clamping of the parts in each station.

[0048] Please refer to Figure 4 In some embodiments, the clamping assembly 130 comprises a guide rail 131, a sliding block 132 and a clamp 133, the guide rail 131 is installed on the main rotary body 110 along the direction from the second end 112 to the first end 111 of the main rotary body 110, and the outer periphery of the main rotary body 110 is provided with a plurality of guide rails 131, such as 8 guide rails 131 in the figure, each guide rail 131 is arranged in parallel, each guide rail 131 is matched with the sliding block 132, the clamp 133 is connected to the sliding block 132 and is used for fixing the relative position of the sliding block 132 and the guide rail 131, after the sliding block 132 moves, the clamp 133 fixes the sliding block 132 to determine the position of the three-jaw chuck 121 and the clamping assembly 130, and realizes coarse adjustment, and the clamp 133 adopts a conventional clamp for guide rail 131.

[0049] Please refer to Figure 4In some embodiments, the assembly 130 further comprises a top 134 for fixing the parts 700 to be welded, the top 134 has a tapered end and a rod end, the rod end is connected to a seat 135, the seat 135 is fixedly connected to the slider 132, the seat 135 moves along with the slider 132 along the guide rail 131, a driving member 137 is connected to the rod end of the top 134 and used to drive the top 134 to move back and forth along the guide rail 131 from the second end 112 to the first end 111, the driving member 137 is a hand wheel and a screw rod, the hand wheel is connected to one end of the screw rod, the screw rod is installed in the seat 135, the other end of the screw rod is connected to the rod end of the top 134, a locker 136 is used to fix the position of the top 134 relative to the guide rail 131, the locker 136 is fixed to one side of the seat 135, the rod end of the top 134 passes through the locker 136, the locker 136 is a clamp and a screw rod, the clamp is clamped by tightening the screw rod, thereby fixing the position of the top 134, achieving fine adjustment, thereby achieving the function of clamping parts with multiple lengths, ensuring that the parts are in a stable state, and ensuring that the parts do not interfere with each other, preventing the assembly state of other parts from being affected during the clamping or welding process due to the operation of a part, and being conducive to ensuring the consistency of the processing quality.

[0050] In some embodiments, in order to accurately adjust, a rotary transformer can also be installed on the revolution driving frame module 200 or the rotation support module 400, which is used to feed back signals to the vacuum servo motor, and the rotary transformer is used as an angle feedback and measurement element, which has high motion control accuracy and repeat positioning accuracy. The locking of the work station switching is realized by the vacuum motor itself, without the need to additionally introduce mechanical limiting and locking devices, effectively avoiding overshoot, shaking, blocking and other phenomena, and ensuring smooth and smooth motion process. During use, the work station switching supports forward and reverse rotation, and the zero mark can be realized by means of the original position switch, further improving the operation convenience and accuracy.

[0051] Regarding the specific embodiments of the present application, it should be noted that:

[0052] In the description of the application, unless otherwise clearly specified and limited, the terms "connection", "fixation", "communication" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral molding; "connection" can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, can be internal connection of two elements or interaction relationship between two elements, unless otherwise clearly limited; "communication" can be internal of two components and between two components, or space communication between the two, the two are connected directly or indirectly through the part forming the space. The terms "set", "install", "provided with", "configuration" and the like should also be understood in a broad sense. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0053] In the description of the application, the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. All directional indications are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0054] In the description of the application, the description with reference to the terms "some embodiments", "optional embodiments", "examples", "specific examples", "optional examples" or "optional examples" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the application, but does not mean that all possible forms of the application are described and explained by these embodiments. In the specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification.

[0055] The above detailed description together with examples will not be exhaustively described to limit the embodiments disclosed herein; rather, the above description together with examples will be understood in connection to explain the embodiments disclosed herein; the above description together with examples cannot be understood as a limitation on the embodiments disclosed herein. The technical solutions among the embodiments can be combined with each other, but it must be based on the implementation of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application. Although the embodiments of the present application have been shown and described, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application. It can be understood by those skilled in the art that various other specific changes and combination embodiments made according to the technical inspirations disclosed in the present application without departing from the essence of the present application are still within the protection scope defined by the claims of the present application and equivalent technical solutions.

Claims

1. A rotating fixture for electron beam welding, characterized in that, include: The main rotating module (100) includes a main rotating body (110) and a plurality of clamping assemblies (120). The main rotating body (110) has a second end (112) and a first end (111) opposite to each other. The plurality of clamping assemblies (120) are spaced apart and arranged in a ring around the main rotating body (110). The mating end of the clamping assembly (120) passes through the second end (112) of the main rotating body (110). The clamping assembly (120) is used to clamp and fix the part (700) to be welded. The revolution drive frame module (200) is rotatably connected to the first end (111) of the main rotating body (110). The revolution drive module has a built-in drive mechanism (210), and the output end of the drive mechanism (210) is connected to the main rotating body (110) in a transmission manner. The gear module (300) includes a main gear (310) and a plurality of auxiliary gears (320) meshing with the main gear (310). The plurality of auxiliary gears (320) are arranged in a ring around the outer edge of the main gear (310) and spaced apart. The main gear (310) is used to dock with the chuck (600) of the electron beam welding machine. The auxiliary gears (320) are connected to the docking end of the clamping assembly (120). A rotating support module (400) supports and mounts the second end (112) of the main rotating body (110); The base plate module (500) is used to fix to the working platform of the electron beam welding machine. The two ends of the base plate module (500) support and connect the revolution drive frame module (200) and the rotating support module (400) respectively. The first end (111) of the main rotating body (110) is driven by the driving mechanism (210) to make the multiple clamping components (120) revolve in a circle; the main gear (310) is driven by the chuck (600) of the electron beam welding machine to make the secondary gear (320) rotate with the main gear (310), while each clamping component (120) rotates on its own axis.

2. The rotating fixture for electron beam welding according to claim 1, characterized in that, As the plurality of clamping assemblies (120) rotate, the plurality of secondary gears (320) rotate synchronously with the clamping assemblies (120).

3. The rotating fixture for electron beam welding according to claim 1, characterized in that, As the plurality of clamping assemblies (120) revolve in a circular orbit, the plurality of secondary gears (320) rotate with the main rotating body (110).

4. The rotating fixture for electron beam welding according to claim 1, characterized in that, The rotating support module (400) includes a rotating support (410) and a gear guard (420), which encloses the main gear (310) and a plurality of the secondary gears (320) at the second end (112) of the main rotating body (110), and the gear guard (420) is fixed to the rotating support (410).

5. The rotating fixture for electron beam welding according to claim 4, characterized in that, The rotating support module (400) also includes a roller assembly (430) installed inside the gear guard (420). The roller assembly (430) is rotatable relative to the main rotating body (110) and is used to support the main rotating body (110).

6. The rotating fixture for electron beam welding according to claim 1, characterized in that, The main rotating module (100) further includes a clamping assembly (130), the clamping assembly (120) is fixed to the main rotating body (110), the clamping assembly (130) corresponds one-to-one with the clamping assembly (120), the clamping assembly (130) can move relative to the clamping assembly (120) along the direction from the second end (112) to the first end (111) of the main rotating body (110), the clamping assembly (120) and the clamping assembly (130) are used to fix the two ends of the part to be welded (700).

7. The rotating fixture for electron beam welding according to claim 6, characterized in that, The clamping assembly (130) includes a guide rail (131), a slider (132), and a clamp (133). The guide rail (131) is mounted on the main rotating body (110) along the direction from the second end (112) to the first end (111). The clamp (133) is connected to the slider (132) and is used to fix the relative position of the slider (132) and the guide rail (131).

8. The rotary tooling for electron beam welding according to claim 7, characterized in that, The clamping assembly (130) further includes a tip (134), a base (135), a locking device (136), and a drive member (137). The tip (134) is used to fix the part (700) to be welded. The tip (134) is connected to the base (135). The base (135) is fixed to the slider (132). The drive member (137) is connected to the tip (134) and is used to drive the tip (134) to move back and forth in the direction from the second end (112) to the first end (111). The locking device (136) is used to fix the position of the tip (134) relative to the guide rail (131).

9. The rotating fixture for electron beam welding according to claim 5, characterized in that, The main rotating module (100) also includes a protective ring (140), which is sleeved on the outer edge of the second end (112) of the main rotating body (110) and is in rotational contact with the roller assembly (430).

10. The rotary tooling for electron beam welding according to any one of claims 1-9, characterized in that, It also includes lifting rings (440) for hoisting, which are fixed to the revolution drive frame module (200) and the rotating support module (400).

Images