CN113199133A - Angle-adjustable conical cylinder annular seam friction stir welding device and welding method - Google Patents

Angle-adjustable conical cylinder annular seam friction stir welding device and welding method Download PDF

Info

Publication number
CN113199133A
CN113199133A CN202110578645.3A CN202110578645A CN113199133A CN 113199133 A CN113199133 A CN 113199133A CN 202110578645 A CN202110578645 A CN 202110578645A CN 113199133 A CN113199133 A CN 113199133A
Authority
CN
China
Prior art keywords
tailstock
angle
headstock
workpiece
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110578645.3A
Other languages
Chinese (zh)
Inventor
赵源
戈军委
刘邦森
张书权
符书豪
郑维浪
张昌飞
王钦伟
张伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Aerospace Tianma Electrical Technology Co Ltd
Original Assignee
Guizhou Aerospace Tianma Electrical Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Aerospace Tianma Electrical Technology Co Ltd filed Critical Guizhou Aerospace Tianma Electrical Technology Co Ltd
Priority to CN202110578645.3A priority Critical patent/CN113199133A/en
Publication of CN113199133A publication Critical patent/CN113199133A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/26—Auxiliary equipment
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The invention discloses an angle-adjustable conical cylinder annular seam friction stir welding device and a welding method, and belongs to the technical field of friction stir welding. The device includes base and work piece fixture, work piece fixture includes the support frame, headstock, pivot and gyration subassembly and pedestal connection are passed through to the one end of support frame, the middle part of support frame is passed through lifting support and base swing joint, the activity is equipped with the tailstock on the support frame, the tailstock can remove under translation drive assembly's ordering about, be equipped with tailstock locking Assembly on the tailstock. The device can be used for welding the circular seam of the cylinder and the circular seam of the conical cylinder after being installed and fixed for one time, does not need to be hoisted and assembled and disassembled for many times, eliminates potential safety hazards, and can greatly improve the circular seam welding efficiency of products. The inclination angle of the workpiece relative to the horizontal plane can be continuously adjusted through the lifting support, so that the device is suitable for welding a cylinder and a conical cylinder in a certain vertex angle range, and the practicability is high.

Description

Angle-adjustable conical cylinder annular seam friction stir welding device and welding method
Technical Field
The invention relates to an angle-adjustable conical cylinder annular seam friction stir welding device and a welding method, and belongs to the technical field of friction stir welding.
Background
Friction stir welding is an advanced solid phase joining technology which is developed rapidly in recent years, has the technical advantages of high efficiency, low consumption, low welding temperature, small residual stress, difficult deformation of welding workpieces, low environmental requirements and the like, and is widely accepted and paid attention to various industries such as aviation, aerospace and the like. The advancement of welding process equipment also represents the industrial development level of a country to a certain extent, and welding devices are gradually developed towards automation and intellectualization. The existing friction stir welding device generally adopts a pressing claw to clamp a workpiece, the welding direction is not easy to adjust, and the welding efficiency is low. The girth welding device is only suitable for welding the welding seam of the cylindrical barrel, does not have the function of adjusting the direction or the angle, cannot weld the girth of the conical barrel, and has certain limitation.
Chinese patent publication No. CN211588901U discloses a conical circumferential seam friction stir welding device for aluminum alloy targets, which can make the angle between the welding device and the horizontal plane more various and flexible through bases with different angles, reduce the welding difficulty of the conical targets, and improve the welding quality of the conical targets. In actual use, the side plates with different angles are assembled to match the target welding with different tapers.
However, the conical circumferential seam friction stir welding device has the following disadvantages:
1. before welding different tapering targets, need change angle assorted curb plate earlier, every change curb plate, just need assemble unable adjustment base once, and need hang whole device earlier before the dismouting unable adjustment base, it is long, the potential safety hazard is big to install and remove the length of consuming time, leads to product welding efficiency to reduce by a wide margin.
2. The angle between the welding device and the horizontal plane cannot be continuously adjusted, and the practicability is poor.
3. The pressing cylinder drives the movable support and the pressing plate to move through the connecting rod mechanism, the pressing plate and the tensioning sleeve are matched to clamp the conical target and the flange plate, the flexible clamping mode is adopted, the movable support can return under the action of the stirring head, and the welding quality of a product is reduced.
4. The fixed base is not effectively fixed, the device can vibrate greatly in the welding process, and even the displacement phenomenon occurs, so that the welding quality of the product is reduced.
Disclosure of Invention
In order to solve the technical problem, the invention provides an angle-adjustable conical cylinder circular seam friction stir welding device and a welding method.
The invention is realized by the following technical scheme:
the utility model provides a toper section of thick bamboo circumferential weld friction stir welding device with adjustable angle, includes base and work piece fixture, work piece fixture includes the support frame, headstock, pivot and gyration subassembly and pedestal connection are passed through to the one end of support frame, the middle part of support frame is passed through lifting support and base swing joint, the activity is equipped with the tailstock on the support frame, the tailstock can be at translation drive assembly's the removal of ordering about, be equipped with tailstock locking Assembly on the tailstock.
The front side and the rear side of the headstock are respectively connected with the base through a rotating shaft and a rotating assembly, and the front side and the rear side of the middle part of the support frame are respectively movably connected with the base through a lifting support.
The rotating shaft is fixedly arranged on the headstock, the rotating shafts on the front side and the rear side of the headstock are coaxial, the axis of the rotating shaft is perpendicular to and intersected with the axis of the headstock and the axis of the tailstock, and the rotating assembly comprises a rotating support and a bearing with a seat arranged on the rotating support.
An angle plate is arranged on the rotary support, an angle scribing line is arranged on the angle plate, the rotating shaft penetrates through the angle plate, and an angle pointer is fixedly arranged at one end of the rotating shaft.
The lifting support comprises a hollow swinging block and a lifting block, one end of the hollow swinging block is rotatably connected with the base through a pin shaft, the other end of the hollow swinging block is provided with a top plate, a lifting driving motor is arranged on the top plate, a lead screw is movably arranged in the hollow swinging block, gear transmission or chain transmission is adopted between the lead screw and the lifting driving motor, the lifting block is in threaded connection with the lead screw, two circular shafts are coaxially arranged on the lifting block and are connected with the support frame through connecting blocks, and a slot-drawing hole is formed in the hollow swinging block at a position corresponding to the circular shafts along the length direction.
When the connecting block is in contact with the plane determined by the bottom surface of the base, the supporting frame is located at a horizontal position.
The base is provided with two guide rails side by side, the tail frame is connected with the two guide rails in a sliding mode, the translation driving assembly comprises a rack arranged on the base and a speed reducing motor arranged on the tail frame, a gear is sleeved on an output shaft of the speed reducing motor, and the gear is meshed with the rack.
The tailstock locking assembly comprises an air cylinder and a pressing plate, the pressing plate penetrates through the tailstock and is in sliding connection with the tailstock, a friction plate is arranged on the pressing plate, a wedge-shaped hole is formed in the pressing plate, the air cylinder is arranged on the tailstock, a wedge block is arranged on a piston rod of the air cylinder, and the wedge block is inserted into the wedge-shaped hole.
A welding method of an angle-adjustable conical cylinder circular seam friction stir welding device comprises the following main steps:
step 1, driving the tail frame to move in a direction far away from the headstock through the translation driving assembly to ensure that enough installation space is formed between the headstock and the tail frame,
step 2, mounting the workpiece on a mandrel with an internal support, adjusting the internal support to fix the workpiece, integrally hoisting the workpiece, the mandrel and the internal support between a headstock and a tailstock by a crane or a traveling crane, driving the tailstock to move towards the direction close to the headstock by a translation driving assembly, clamping and fixing the workpiece by the tailstock matching with the headstock, ensuring the workpiece to be coaxial with the headstock and the tailstock,
step 3, locking and fixing the tailstock through the tailstock locking assembly,
step 4, adjusting the angle of the workpiece clamping mechanism through the lifting bracket according to the type of the workpiece to ensure that the axial line of the stirring head is positioned in the circular seam section,
step 5, driving the workpiece to do rotary motion through the headstock, inserting the stirring head into the welding line, starting welding work,
and 6, after welding is finished, loosening the tailstock by the tailstock locking assembly, driving the tailstock to move in the direction away from the headstock by the translation driving assembly, integrally taking down the workpiece, the mandrel and the inner support, manually loosening the inner support, and taking out the workpiece.
If the workpiece is a conical cylinder in the step 2, the large end of the conical cylinder is close to the headstock, and the small end of the conical cylinder is close to the tailstock; in the step 4, if the workpiece is a cylinder, the lifting driving motor drives the connecting block to move downwards until the lower end of the connecting block is in contact with the ground, at this time, the angle pointer points to a zero scale mark on the angle plate, and if the workpiece is a conical cylinder, the lifting driving motor drives the connecting block to move upwards or downwards until the angle value pointed by the angle pointer on the angle plate is equal to 1/2 at the vertex angle of the conical cylinder.
The invention has the beneficial effects that:
1. the device can be used for welding the circular seam of the cylinder and the circular seam of the conical cylinder after being installed and fixed for one time, does not need to be hoisted and assembled and disassembled for many times, eliminates potential safety hazards, and can greatly improve the circular seam welding efficiency of products.
2. The inclination angle of the workpiece relative to the horizontal plane can be continuously adjusted through the lifting support, so that the device is suitable for welding a cylinder and a conical cylinder in a certain vertex angle range, and the practicability is high.
3. The relative position of the angle pointer and the angle plate is referred, the inclined circular seam of the conical cylinder can be adjusted to be horizontal through the lifting support, the defect that the circular seam with a large inclination angle cannot be welded due to the limited swing angle of the stirring head is overcome, and the conical circular seam welding quality is ensured.
4. After the tail frame moves in place, the tail frame is locked and fixed through the tail frame locking assembly, the tail frame is prevented from returning, the tail frame and the head frame are enabled to stably and reliably clamp a workpiece, and the improvement of the girth welding quality of the product is facilitated.
5. Whole device passes through base fixed mounting subaerial, avoids the device to appear vibrating by a wide margin in welding process, helps improving product girth welding quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the assembled structure of the base, rotating assembly, escalator and lifting frame of the present invention;
FIG. 3 is a schematic view of the assembled structure of the headstock, tailstock and support frame of the present invention;
FIG. 4 is a cross-sectional view of the headstock, tailstock, and support of the present invention;
FIG. 5 is a schematic view of the assembled structure of the guide rail, tailrack, and tailrack locking assembly of the present invention;
fig. 6 is a schematic view of an assembly structure of the slewing bracket, the seated bearing, the angle plate and the angle indicator according to the present invention.
In the figure: 1-base, 2-headstock, 3-tailstock, 4-slewing bracket, 5-lifting bracket, 6-staircase, 7-headstock, 8-rear side shield, 9-crossed cylindrical roller bearing A, 10-helical gear, 11-planetary reducer, 12-slewing drive motor, 13-headstock slewing connection disc, 14-rack, 15-guide rail, 16-tailstock, 17-tailstock slewing connection disc, 18-speed reduction motor, 19-tailstock locking assembly, 20-cylinder, 21-friction plate, 22-wedge, 23-pressing plate, 24-lifting drive motor, 25-angle plate and 26-angle pointer.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 6, the angle-adjustable conical cylinder circumferential weld friction stir welding device comprises a base 1 and a workpiece clamping mechanism, wherein the workpiece clamping mechanism comprises a support frame, one end of the support frame is connected with the base 1 through a headstock 2, a rotating shaft and a rotating assembly, the middle of the support frame is rotatably connected with the base 1 through a lifting support 5, a tailstock 3 is movably mounted on the support frame, the tailstock 3 can move under the driving of a translation driving assembly, and a tailstock locking assembly 19 is mounted on the tailstock 3. When the rotary table is used, the base 1 is of a U-shaped structure and fixedly mounted on the ground, and the two ends of the base 1 are welded with the double lug plates, so that the base is conveniently connected with the hollow swing block in a rotating mode through the pin shaft. The support frame also is the U-shaped structure, and the inboard welding of support frame has the reinforcing plate, and the support frame is located the inboard of base 1, and headstock 2 fixed mounting is at the U-shaped open end of support frame, and headstock 2 and tailstock 3 coaxial arrangement.
The front side and the rear side of the headstock 2 are respectively connected with the base 1 through a rotating shaft and a rotating assembly, and the front side and the rear side of the middle part of the support frame are respectively connected with the base 1 through a lifting support 5 in a rotating manner.
The rotating shaft is fixedly welded on the headstock 2, the rotating shafts on the front side and the rear side of the headstock 2 are coaxial, the axis of the rotating shaft is perpendicular to and intersected with the axis of the headstock 2 and the axis of the tailstock 3, and the rotating assembly comprises a rotating support 4 and a bearing with a seat, which is arranged on the rotating support 4. The axis of the rotating shaft is vertical to and intersected with the axis of the headstock 2 and the axis of the tailstock 3, and when the workpiece is coaxial with the headstock 2 and the tailstock 3, the rotating shaft rotates by more or less degrees, and the axis of the workpiece rotates by more or less degrees around the rotating shaft.
An angle plate 25 is mounted on the rotary support 4, an angle groove is processed on the angle plate 25, a rotating shaft penetrates through the angle plate 25, and an angle pointer 26 is fixedly mounted at one end of the rotating shaft. The angle pointer 26 and the angle plate 25 are conveniently referred, and the support frame and the workpiece are quickly and accurately rotated to a required angle through the lifting support 5.
The lifting support 5 comprises a hollow swinging block and a lifting block, one end of the hollow swinging block is rotatably connected with the base 1 through a pin shaft, the other end of the hollow swinging block is provided with a top plate, a lifting driving motor 24 is arranged on the top plate, a screw rod is movably arranged in the hollow swinging block, gear transmission or chain transmission is adopted between the screw rod and the lifting driving motor 24, the lifting block is in threaded connection with the screw rod, two circular shafts are coaxially welded on the lifting block and are connected with the support frame through connecting blocks, and a slot stretching hole is formed in the hollow swinging block at the position corresponding to the circular shafts along the length direction. The lifting driving motor 24 drives the screw rod to rotate through gear transmission or chain transmission, and the lifting block can move along the length direction of the screw rod due to the threaded connection of the lifting block and the screw rod, so that the supporting frame, the headstock 2, the tailstock 3 and the like are driven to rotate around the rotating shaft through the round shaft and the connecting block, and the purpose of adjusting the angle of the workpiece is achieved.
When the connecting block is contacted with a plane (namely the ground) determined by the bottom surface of the base 1, the supporting frame is positioned at a horizontal position. When the connecting block is in contact with the ground, the angle pointer 26 points to the zero scale mark on the angle plate 25, which is helpful to improve the speed of adjusting the support frame to the horizontal position.
Two guide rails 15 are arranged on the base 1 side by side, the tail frame 3 is connected with the two guide rails 15 in a sliding mode, the translation driving assembly comprises a rack 14 arranged on the base 1 and a speed reducing motor 18 arranged on the tail frame 3, a gear is sleeved on an output shaft of the speed reducing motor 18, and the gear is meshed with the rack 14. The gear motor 18 drives the tailstock 3 to move towards or away from the headstock 2 through a gear rack mechanism.
Tailstock locking assembly 19 includes cylinder 20 and clamp plate 23, and clamp plate 23 runs through tailstock 3 to with tailstock 3 sliding connection, install friction disc 21 on the clamp plate 23, processing has the wedge hole on the clamp plate 23, and cylinder 20 installs on tailstock 3, installs wedge 22 on the piston rod of cylinder 20, and wedge 22 inserts in the wedge hole. As shown in fig. 5, the wedge block 22 is slidably connected with the wedge hole, when the piston rod of the air cylinder 20 extends, the wedge block 22 is pushed to move leftwards, and simultaneously the wedge block 22 lifts the pressing plate 23 upwards, so that the friction plate 21 is pressed on the guide rail 15, and the tailstock 3 is kept fixed; when the piston rod of the air cylinder 20 is retracted, the wedge block 22 is pulled to move rightwards, the pressure plate 23 moves downwards under the action of self weight, and the friction plate 21 is separated from the guide rail 15.
A welding method of an angle-adjustable conical cylinder circular seam friction stir welding device comprises the following main steps:
step 1, driving the tail frame 3 to move in a direction away from the headstock 2 through the translation driving assembly, and ensuring that a sufficient installation space is formed between the headstock 2 and the tail frame 3.
And 2, mounting the workpiece on a mandrel with an internal support, adjusting the internal support to fix the workpiece, integrally hoisting the workpiece, the mandrel and the internal support between the headstock 2 and the tailstock 3 by a crane or a traveling crane, driving the tailstock 3 to move towards the direction close to the headstock 2 by a translation driving assembly, clamping and fixing the workpiece by matching the tailstock 3 with the headstock 2, and ensuring that the workpiece is coaxial with the headstock 2 and the tailstock 3.
And 3, locking and fixing the tail frame 3 through the tail frame locking assembly 19.
And 4, adjusting the angle of the workpiece clamping mechanism through the lifting support 5 according to the type of the workpiece, and ensuring that the axis of the stirring head is positioned in the circular seam section.
And 5, driving the workpiece to do rotary motion through the headstock 2, inserting the stirring head into the welding line, and starting welding.
And 6, after welding is finished, the tailstock locking assembly 19 releases the tailstock 3, the translation driving assembly drives the tailstock 3 to move towards the direction far away from the headstock 2, meanwhile, the workpiece, the mandrel and the inner support are integrally taken down, then the inner support is manually released, and the workpiece is taken out.
In the step 2, if the workpiece is a conical cylinder, the large end of the conical cylinder is close to the headstock 2, and the small end of the conical cylinder is close to the tailstock 3; in the step 4, if the workpiece is a cylinder, the lifting drive motor 24 drives the connecting block to move downwards until the lower end of the connecting block contacts with the ground, at this time, the angle pointer 26 points to the zero scale mark on the angle plate 25, and if the workpiece is a cone, the lifting drive motor 24 drives the connecting block to move upwards or downwards until the angle value pointed by the angle pointer 26 on the angle plate 25 is equal to 1/2 at the vertex angle of the cone.
Specifically, the escalator 6 is welded on the outer side of the rotary support 4 on the base 1.
The headstock 2 comprises a headstock body 7, a planetary reducer 11, a rotary driving motor 12, a crossed cylindrical roller bearing A9 and a headstock rotary connecting disc 13, the planetary reducer 11 is installed on the headstock body 7, the rotary driving motor 12 is connected with the input end of the planetary reducer 11, an output shaft of the planetary reducer 11 is sleeved with a helical gear 10, the crossed cylindrical roller bearing A9 is coaxial with the headstock 2, an inner ring of the crossed cylindrical roller bearing A9 is fixedly connected with the headstock body 7, an outer ring of the crossed cylindrical roller bearing A9 is processed with helical teeth, an outer ring of the crossed cylindrical roller bearing A9 is meshed with the helical gear 10, the headstock rotary connecting disc 13 is coaxially and fixedly installed on the outer ring of the crossed cylindrical roller bearing A9, and a secondary switching tool is coaxially installed on the headstock rotary connecting disc 13. In addition, a rear side shield 8 is installed at one side of the head frame body 7.
Tailstock 3 includes tailstock body 16 and crossed cylindrical roller bearing B, and crossed cylindrical roller bearing B is coaxial with tailstock 3, and crossed cylindrical roller bearing B's inner circle and tailstock body 16 fixed connection, coaxial fixed mounting has tailstock gyration connection pad 17 on the outer lane, and coaxial mounting has the secondary switching frock on tailstock gyration connection pad 17. The two ends of the workpiece are positioned through secondary switching tools on the headstock rotary connecting disc 13 and the tailstock rotary connecting disc 17, and the coaxiality of the headstock rotary connecting disc 13, the workpiece and the tailstock rotary connecting disc 17 is guaranteed.
The invention relates to an angle-adjustable conical cylinder annular seam friction stir welding device, which has the following working principle:
installing a workpiece on a mandrel with an internal support, adjusting the internal support to fix the workpiece, integrally hoisting the workpiece, the mandrel and the internal support between a headstock 2 and a tailstock 3 by a crane or a traveling crane, positioning two ends of the workpiece by a secondary transfer tool on a headstock rotary connecting disc 13 and a tailstock rotary connecting disc 17, and ensuring the coaxiality of the headstock rotary connecting disc 13, the workpiece and the tailstock rotary connecting disc 17;
the gear motor 18 drives the tailstock 3 to move towards the direction close to the headstock 2 through a gear rack mechanism, the tailstock 3 is matched with the headstock 2 to clamp and fix a workpiece, the air cylinder 20 acts, a piston rod of the air cylinder extends out to push the wedge block 22 to move leftwards, and meanwhile, the wedge block 22 lifts the pressing plate 23 upwards to press the friction plate 21 on the guide rail 15, so that the tailstock 3 is kept fixed;
according to the type of the workpiece (namely, the circular seam type), the connecting block is driven to move upwards or downwards by the lifting driving motor 24, and the workpiece is adjusted to a required angle;
the rotary driving motor 12 drives the helical gear 10 to rotate through the planetary reducer 11, then drives the headstock rotary connecting disc 13, the workpiece and the tailstock rotary connecting disc 17 to do rotary motion through gear transmission, and the circular seam welding work can be started by inserting the stirring head into a welding seam.
The angle-adjustable conical cylinder circular seam friction stir welding device and the welding method provided by the invention have the beneficial effects that:
1. the device can be used for welding the circular seam of the cylinder and the circular seam of the conical cylinder after being installed and fixed for one time, does not need to be hoisted and assembled and disassembled for many times, eliminates potential safety hazards, and can greatly improve the circular seam welding efficiency of products.
2. The inclination angle of the workpiece relative to the horizontal plane can be continuously adjusted through the lifting support 5, so that the device is suitable for welding a cylinder and a conical cylinder in a certain vertex angle range, and the practicability is high.
3. By referring to the relative positions of the angle pointer 26 and the angle plate 25, the inclined circular seam of the conical cylinder can be adjusted horizontally through the lifting support 5, the defect that the circular seam with a large inclination angle cannot be welded due to the limited swing angle of the stirring head is overcome, and the conical circular seam welding quality is ensured.
4. After the tail frame 3 is moved in place, the tail frame 3 is locked and fixed through the tail frame locking assembly 19, the tail frame 3 is prevented from returning, the tail frame 3 and the headstock 2 can stably and reliably clamp a workpiece, and the improvement of the girth welding quality of a product is facilitated.
5. Whole device passes through 1 fixed mounting of base subaerial, avoids the device to appear vibrating by a wide margin in welding process, helps improving product girth welding quality.

Claims (10)

1. The utility model provides a toper section of thick bamboo circumferential weld friction stir welding device with adjustable angle which characterized in that: including base (1) and work piece fixture, work piece fixture includes the support frame, headstock (2), pivot and gyration subassembly are passed through to the one end of support frame and are connected with base (1), the middle part of support frame is passed through lifting support (5) and base (1) swing joint, the activity is equipped with tailstock (3) on the support frame, tailstock (3) can be at translation drive assembly's the removal of ordering about down, be equipped with tailstock locking Assembly (19) on tailstock (3).
2. The angle-adjustable conical barrel circumferential seam friction stir welding apparatus of claim 1, wherein: the front side and the rear side of the headstock (2) are respectively connected with the base (1) through a rotating shaft and a rotating assembly; the front side and the rear side of the middle part of the supporting frame are respectively movably connected with the base (1) through a lifting bracket (5).
3. The angle-adjustable conical barrel circumferential seam friction stir welding apparatus of claim 2, wherein: the rotating shaft is fixedly arranged on the headstock (2), the rotating shafts on the front side and the rear side of the headstock (2) are coaxial, and the axis of the rotating shaft is perpendicular to and intersected with the axis of the headstock (2) and the axis of the tailstock (3); the rotating assembly comprises a rotating support (4) and a bearing with a seat arranged on the rotating support (4).
4. The angle-adjustable conical barrel circumferential seam friction stir welding apparatus of claim 3, wherein: the angle plate (25) is arranged on the rotary support (4), an angle groove is formed in the angle plate (25), the rotating shaft penetrates through the angle plate (25), and an angle pointer (26) is fixedly arranged at one end of the rotating shaft.
5. The angle-adjustable conical barrel circumferential seam friction stir welding apparatus of claim 1, wherein: the lifting support (5) comprises a hollow swinging block and a lifting block, one end of the hollow swinging block is rotatably connected with the base (1) through a pin shaft, the other end of the hollow swinging block is provided with a top plate, a lifting driving motor (24) is arranged on the top plate, a screw rod is movably arranged in the hollow swinging block, gear transmission or chain transmission is adopted between the screw rod and the lifting driving motor (24), the lifting block is in threaded connection with the screw rod, two round shafts are coaxially arranged on the lifting block and are connected with the support frame through connecting blocks, and a stretching hole is formed in the hollow swinging block at a position corresponding to the round shafts along the length direction.
6. The angle-adjustable conical barrel circumferential seam friction stir welding apparatus of claim 5, wherein: when the connecting block is in contact with the plane determined by the bottom surface of the base (1), the supporting frame is located at a horizontal position.
7. The angle-adjustable conical barrel circumferential seam friction stir welding apparatus of claim 1, wherein: the base (1) is provided with two guide rails (15) side by side, and the tail frame (3) is connected with the two guide rails (15) in a sliding manner; the translation driving assembly comprises a rack (14) arranged on the base (1) and a speed reducing motor (18) arranged on the tail frame (3), a gear is sleeved on an output shaft of the speed reducing motor (18), and the gear is meshed with the rack (14).
8. The angle-adjustable conical barrel circumferential seam friction stir welding apparatus of claim 1, wherein: tailstock locking Assembly (19) includes cylinder (20) and clamp plate (23), and tailstock (3) is run through in clamp plate (23) to with tailstock (3) sliding connection, be equipped with friction disc (21) on clamp plate (23), be equipped with the wedge hole on clamp plate (23), establish on tailstock (3) cylinder (20), be equipped with wedge (22) on the piston rod of cylinder (20), wedge (22) insert in the wedge hole.
9. The welding method of the angle-adjustable conical cylinder circular seam friction stir welding device is characterized in that: the method comprises the following main steps:
step 1, driving a tail frame (3) to move towards a direction far away from a headstock (2) through a translation driving assembly, and ensuring that a sufficient installation space is formed between the headstock (2) and the tail frame (3);
step 2, mounting a workpiece on a mandrel with an internal support, adjusting the internal support to fix the workpiece, integrally hoisting the workpiece, the mandrel and the internal support between a headstock (2) and a tailstock (3) through a crane or a traveling crane, driving the tailstock (3) to move towards the direction close to the headstock (2) through a translation driving assembly, clamping and fixing the workpiece by matching the headstock (2) with the tailstock (3), and ensuring that the workpiece is coaxial with the headstock (2) and the tailstock (3);
step 3, locking and fixing the tailstock (3) through a tailstock locking assembly (19);
step 4, adjusting the angle of the workpiece clamping mechanism through the lifting support (5) according to the type of the workpiece, and ensuring that the axial line of the stirring head is positioned in the circular seam section;
step 5, driving the workpiece to do rotary motion through the headstock (2), inserting the stirring head into the welding line, and starting welding;
and 6, after welding is finished, the tailstock (3) is loosened by the tailstock locking assembly (19), the translation driving assembly drives the tailstock (3) to move in the direction away from the headstock (2), meanwhile, the workpiece, the mandrel and the inner support are integrally taken down, then the inner support is manually loosened, and the workpiece is taken out.
10. The welding method of the angle-adjustable conical cylinder circumferential seam friction stir welding device according to claim 9, characterized in that: in the step 2, if the workpiece is a conical cylinder, the large end of the conical cylinder is close to the headstock (2), and the small end of the conical cylinder is close to the tailstock (3); in the step 4, if the workpiece is a cylinder, the lifting driving motor (24) drives the connecting block to move downwards until the lower end of the connecting block is contacted with the ground, at the moment, the angle pointer (26) points to a zero scale mark on the angle plate (25), and if the workpiece is a conical cylinder, the lifting driving motor (24) drives the connecting block to move upwards or downwards until the angle value pointed by the angle pointer (26) on the angle plate (25) is equal to 1/2 at the vertex angle of the conical cylinder.
CN202110578645.3A 2021-05-26 2021-05-26 Angle-adjustable conical cylinder annular seam friction stir welding device and welding method Pending CN113199133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110578645.3A CN113199133A (en) 2021-05-26 2021-05-26 Angle-adjustable conical cylinder annular seam friction stir welding device and welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110578645.3A CN113199133A (en) 2021-05-26 2021-05-26 Angle-adjustable conical cylinder annular seam friction stir welding device and welding method

Publications (1)

Publication Number Publication Date
CN113199133A true CN113199133A (en) 2021-08-03

Family

ID=77023294

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110578645.3A Pending CN113199133A (en) 2021-05-26 2021-05-26 Angle-adjustable conical cylinder annular seam friction stir welding device and welding method

Country Status (1)

Country Link
CN (1) CN113199133A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114406445A (en) * 2022-03-11 2022-04-29 哈尔滨焊接研究院有限公司 Rotary isolation mechanism and friction welding machine
CN114918514A (en) * 2022-06-08 2022-08-19 河北业鑫金属制品有限公司 Cable bridge forming and processing device and processing method
WO2023168958A1 (en) * 2022-03-11 2023-09-14 哈尔滨焊接研究院有限公司 Axis adjusting device of friction welding machine, slide mechanism, and friction welding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114406445A (en) * 2022-03-11 2022-04-29 哈尔滨焊接研究院有限公司 Rotary isolation mechanism and friction welding machine
WO2023168958A1 (en) * 2022-03-11 2023-09-14 哈尔滨焊接研究院有限公司 Axis adjusting device of friction welding machine, slide mechanism, and friction welding machine
CN114918514A (en) * 2022-06-08 2022-08-19 河北业鑫金属制品有限公司 Cable bridge forming and processing device and processing method

Similar Documents

Publication Publication Date Title
CN113199133A (en) Angle-adjustable conical cylinder annular seam friction stir welding device and welding method
CN211840813U (en) Novel rapid welding equipment
CN214921355U (en) Circular seam friction stir welding device
CN212704690U (en) A cutting device for five metals pipe fitting
CN112091525A (en) Steel pipe flange butt welding robot
CN112427775A (en) Automatic annular welding device for automobile sleeve parts
CN110303196B (en) Cutting robot for two ends of axle housing and cutting method thereof
CN112108809B (en) High-vacuum metal corrugated pipe welding machine and welding method
CN110202253B (en) Friction stir welding clamping device and three-dimensional welding equipment
CN216802280U (en) Automatic positioning device for valve flange welding
CN217371193U (en) Clamping device for automatic welding
CN214721328U (en) Automatic annular welding device for automobile sleeve parts
CN113798889B (en) Worker who gear machine tool cylinder liner profile of tooth processing used grinds anchor clamps
CN214161640U (en) Chamfering device for inner hole of circular tube
CN116140913A (en) Automobile part welding clamping device
CN213053547U (en) Pipe fitting welding auxiliary device
CN204893206U (en) Airborne vehicle fuel storage tube's friction stir welding device
CN114383022A (en) Support device for accurately adjusting laser direction indicator and measuring method
CN220533125U (en) Sawing machine feeding frame and sawing machine
CN216730800U (en) Automatic beveler clamping machine of numerical control pipe base constructs
CN221185651U (en) General fixture convenient to adjust center location height
CN219026082U (en) Industrial workpiece cutting device
CN221658398U (en) Automatic welding device for shielding sleeve
CN219379594U (en) Barrel welding auxiliary machine
CN214978672U (en) Automatic tube plate welding device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination