CN216802076U

CN216802076U - Portal frame moving mechanism of gantry friction stir welding machine tool

Info

Publication number: CN216802076U
Application number: CN202122822917.8U
Authority: CN
Inventors: 刘建国; 李继忠; 张标
Original assignee: Fosway Technology Jiashan Co ltd
Current assignee: Fosway Technology Jiashan Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-06-24
Anticipated expiration: 2031-11-17

Abstract

The utility model relates to the field of friction stir welding devices, in particular to a portal frame moving mechanism of a portal friction stir welding machine tool, which comprises a base, a controller, a sliding mechanism and a damping mechanism, wherein the sliding mechanism comprises a driving assembly, two rolling assemblies and two single guide rails, the two single guide rails are symmetrically arranged at the top of the base, the driving assembly is arranged between the two guide rails, each rolling assembly is inserted at the top of one single guide rail, the damping mechanism comprises a telescopic frame and a buffer assembly, the telescopic frame is fixedly arranged at the tops of the two rolling assemblies, the buffer assembly is arranged in the telescopic frame, and the driving assembly is electrically connected with the controller. The welding head is ensured to be stably welded, the welding line is placed to be inclined, and the welding quality and effect are improved.

Description

Portal frame moving mechanism of gantry friction stir welding machine tool

Technical Field

The utility model relates to the field of friction stir welding devices, in particular to a gantry frame moving mechanism of a gantry friction stir welding machine tool.

Background

The friction stir welding process is the most attractive welding method since the advent of laser welding. The appearance of the device can bring about great changes to the connection technology of nonferrous metals such as aluminum alloy and the like. The friction stir welding method has good effect on welding the aluminum alloy. Friction stir welding has now reached the level of large-scale, industrialized application in many fields such as shipbuilding, rail vehicles, aerospace manufacturing, automotive industry, aerospace industry, and the like. Accordingly, higher demands are also placed on the welding equipment. The movable gantry stirring friction equipment with high welding speed, large stroke and multi-dimensional curved surface welding is produced at the same time.

For the friction stir welding equipment with the movable gantry, the lathe bed is an important component of the equipment, is a key bearing part, plays a role in containing and supporting other parts, and bears the weight of a machine, large welding load, bending moment generated by the welding load and the like during working. The machine body is provided with a portal frame moving structure, and the comprehensive performance of the machine body structure and the portal frame moving structure influences the welding precision and the working capacity of the equipment to a great extent.

The existing gantry moving mechanism has the following defects:

1. the bottom of portal frame is mostly the slidingtype project organization of coexistence or single two guide rail combinations of two guide rails, for example slip table and slide rail direct fit, because be metal material, frictional force is great, and wearing and tearing are great, have reduced the life of mechanism, are unfavorable for maintaining.

2. The gantry crane has no damping function, and the machine head is easy to deviate when the gantry crane is vibrated, so that the welding line is inclined, and the welding quality is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gantry frame moving mechanism of a gantry friction stir welding machine tool.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a portal frame moving mechanism of longmen friction stir welding lathe, the on-line screen storage device comprises a base, still include the controller, slide mechanism and damper, slide mechanism establishes the top at the base, slide mechanism includes drive assembly, two roll subassemblies and two single guide rails, two single guide rails are the symmetry and set up the top at the base, drive assembly establishes between two guide rails, every roll subassembly all inserts the top of establishing a single guide rail, damper includes expansion bracket and buffer assembly, the expansion bracket is fixed to be established at the top of two roll subassemblies, buffer assembly establishes the inside at the expansion bracket, drive assembly is electric connection with the controller.

Preferably, drive assembly includes driving motor, lead screw and thread bush, and the top of base is the symmetry and is provided with two and founds the piece, and the rotatable setting of lead screw is founded between the piece at two, and driving motor fixes and establishes at the top of base, and the one end fixed connection of its output and lead screw, thread bush threaded connection are on the outer wall of lead screw, and the bottom and the top of thread bush are all fixed and are equipped with the diaphragm, and driving motor is connected with the controller electricity.

Preferably, every rolling subassembly all includes slider and a plurality of gyro wheel, and every slider is all established at the top of a single guide rail, and a plurality of gyro wheel is the symmetry and sets up on the inner wall of slider, and the both ends of every single guide rail all are the symmetry and are provided with two spouts, and every gyro wheel all laminates with the spout, the both ends of every diaphragm respectively with two slider fixed connection.

Preferably, the telescopic frame comprises a first frame body and a second frame body, the first frame body is fixedly arranged between the tops of the two sliding blocks, the second frame body is sleeved on the outer wall of the top of the first frame body, and a through groove for the first frame body to stretch is formed in the second frame body.

Preferably, the buffering subassembly includes two anticreep poles and two expanding spring, and two anticreep poles are the symmetry and set up at the inboard top that leads to the groove, and the bottom of every anticreep pole all pegs graft with the inner wall of first support body, and every expanding spring all overlaps and establishes on the first outer wall of an anticreep pole, and the top of leading to the groove contradicts with every expanding spring's both ends respectively with first support body.

Preferably, a pointer is fixedly arranged on one end side wall of one of the sliding blocks, a scale value is arranged on the outer top outer wall of one of the single guide rails close to the pointer, and the pointer faces the scale value.

Preferably, the outer wall of the second frame body is fixedly provided with a machine head.

Preferably, the top of the base is fixedly provided with a workbench.

The utility model has the beneficial effects that: the workstation is used for placing the work piece that needs the welded, and the aircraft nose includes bonding tool and fixed knot structure, and the bonding tool is used for welding the work piece, puts the back when the work piece, through controller start-up driving motor, because its output and lead screw fixed connection, the lead screw rotates with two pole settings to be connected, again because thread bush and lead screw threaded connection to it slides to drive the thread bush.

When the thread bush slides, two diaphragms respectively with the top and the bottom fixed connection of thread bush, again because the both ends of every diaphragm respectively with two slider fixed connection, the bottom of expansion bracket and the top fixed connection of two sliders, and then the aircraft nose that drives on the expansion bracket slides, weld workpiece surface, cooperate with the slider through the design gyro wheel, change the slidingtype drive of portal frame among the prior art into roll formula structure, compare in the direct and single guide rail contact of slider, the friction has been reduced, the wearing and tearing of spare part have been reduced, be favorable to promoting the life of guide rail and this mechanism, utilize the power of sliding structure hundredth to accomplish the removal of portal frame simultaneously, it is lighter and swift.

When the aircraft nose is in the slip, the pointer slides on the scale value, makes things convenient for the workman to learn the length of welding seam in real time, and then prevents to cause welding error, promotes welding effect and quality.

The first frame body and the second frame body are inserted and connected to form a telescopic frame, and the telescopic frame is a portal frame of the mechanism.

At the welded in-process, if this mechanism receives the vibration, two expanding spring play the cushioning effect, and two guide arms play the guide effect, guarantee that the second support body steadily slides on first support body to weaken the vibrational force that the expansion bracket received, guarantee that weldment work operates steadily smoothly, and then guarantee that the welding seam is straight neat, promote the welding quality of work piece.

1. According to the utility model, by designing the sliding mechanism, namely the driving assembly, the two rolling assemblies and the two single guide rails, and driving the sliding blocks on the two single guide rails to slide through the screw rod structure, on one hand, the two single guide rails replace a sliding structure with double guide rails coexisting or a single-double guide rail combined sliding structure, so that the driving cost of the mechanism is favorably reduced.

2. According to the utility model, by designing two rolling assemblies, each assembly comprises the sliding block and the plurality of rollers, and by designing the rollers to be matched with the sliding blocks, the sliding type driving of the portal frame in the prior art is changed into a rolling type structure, compared with the condition that the sliding blocks are directly contacted with a single guide rail, the friction is reduced, the abrasion of parts is reduced, the service life of the guide rail and the mechanism is favorably prolonged, meanwhile, the movement of the portal frame can be completed by one percent of force of the sliding structure, the portal frame is easier and quicker, the sliding efficiency is favorably improved, and further the welding efficiency is improved.

3. According to the utility model, through designing the damping mechanism, namely the telescopic frame and the buffer assembly, in the welding process, if the mechanism is vibrated, the two telescopic springs play a damping role, the two guide rods play a guiding role, and the second frame body is ensured to stably slide on the first frame body, so that the vibration force borne by the telescopic frame is weakened, the welding work is ensured to stably and smoothly run, the welding seam is ensured to be straight and neat, and the welding quality of a workpiece is improved.

4. According to the utility model, by designing the pointer and the scale value, when the machine head slides, the pointer slides on the scale value, so that a worker can conveniently learn the length of a welding seam in real time, further, welding errors are prevented, and the welding effect and quality are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments of the present invention are briefly described below.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a cross-sectional view of the table and telescoping boom of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at B;

FIG. 5 is an enlarged view at C in FIG. 3;

in the figure: base 1, slide mechanism 2, damper 3, drive assembly 4, rolling assembly 5, single guide rail 6, expansion bracket 7, buffer assembly 8, driving motor 9, lead screw 10, thread bush 11, found piece 12, diaphragm 13, slider 14, gyro wheel 15, first support body 16, second support body 17, anticreep pole 18, expanding spring 19, pointer 20, scale interval 21, aircraft nose 22, workstation 23.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.

Referring to fig. 1 to 5, a portal frame moving mechanism of gantry friction stir welding machine tool, which comprises a base 1, the portal frame moving mechanism comprises a controller, a sliding mechanism 2 and a damping mechanism 3, the sliding mechanism 2 is arranged at the top of the base 1, the sliding mechanism 2 comprises a driving assembly 4, two rolling assemblies 5 and two single guide rails 6, the two single guide rails 6 are symmetrically arranged at the top of the base 1, the driving assembly 4 is arranged between the two guide rails, each rolling assembly 5 is inserted at the top of one single guide rail 6, the damping mechanism 3 comprises an expansion bracket 7 and a buffer assembly 8, the expansion bracket 7 is fixedly arranged at the tops of the two rolling assemblies 5, the buffer assembly 8 is arranged inside the expansion bracket 7, and the driving assembly 4 is electrically connected with the controller.

Drive assembly 4 includes driving motor 9, lead screw 10 and thread bush 11, base 1's top is the symmetry and is provided with two and founds piece 12, the rotatable setting of lead screw 10 is between two founds pieces 12, driving motor 9 is fixed at base 1's top, the one end fixed connection of its output and

lead screw

10, 11 threaded connection of thread bush is on the outer wall of lead screw 10, thread bush 11's bottom and top are all fixed and are equipped with diaphragm 13, driving motor 9 is connected with the controller electricity, after the work piece is put, start driving motor 9 through the controller, because its output and 10 fixed connection of lead screw, lead screw 10 rotates with two pole settings and is connected, again because

thread bush

11 and 10 threaded connection of lead screw, thereby it slides to drive thread bush 11.

Each rolling component 5 comprises a sliding block 14 and a plurality of rollers 15, each sliding block 14 is sleeved on the top of one single guide rail 6, the plurality of rollers 15 are symmetrically arranged on the inner wall of the sliding block 14, two sliding grooves are symmetrically arranged at two ends of each single guide rail 6, each roller 15 is attached to the sliding grooves, two ends of each transverse plate 13 are fixedly connected with the two sliding blocks 14 respectively, when the threaded sleeve 11 slides, the two transverse plates 13 are fixedly connected with the top and the bottom of the threaded sleeve 11 respectively, and because two ends of each transverse plate 13 are fixedly connected with the two sliding blocks 14 respectively, the bottom of the telescopic frame 7 is fixedly connected with the top of the two sliding blocks 14, so as to drive a machine head 22 on the telescopic frame 7 to slide and weld the surface of a workpiece, the sliding driving of the portal frame in the prior art is changed into a rolling type structure by designing the rollers 15 to be matched with the sliding blocks 14, and compared with the sliding blocks 14 directly contacted with the single guide rails 6, the friction is reduced, the abrasion of parts is reduced, the service life of the guide rail and the mechanism is prolonged, meanwhile, the movement of the portal frame can be completed by one percent of force of the sliding structure, and the portal frame is easier and quicker.

The expansion bracket 7 comprises a first bracket body 16 and a second bracket body 17, the first bracket body 16 is fixedly arranged between the tops of the two sliding blocks 14, the second bracket body 17 is sleeved on the outer wall of the top of the first bracket body 16, a through groove for the expansion of the first bracket body 16 is formed in the second bracket body 17, the first bracket body 16 and the second bracket body 17 are inserted and connected to form the expansion bracket 7, and the expansion bracket 7 is a portal frame of the mechanism.

Buffer unit 8 includes two anticreep poles 18 and two expanding spring 19, two anticreep poles 18 are the inboard top that the symmetry set up at logical groove, every anticreep pole 18's bottom all pegs graft with first support body 16's inner wall, every expanding spring 19 all overlaps and establishes on an anticreep pole 18's first outer wall, the inner wall that leads to the groove and first support body 16's top are contradicted with every expanding spring 19's both ends respectively, at the welded in-process, if this mechanism receives the vibration, two expanding spring 19 play the cushioning effect, two guide arms play the guide effect, guarantee that second support body 17 steadily slides on first support body 16, thereby weaken the vibrational force that expansion bracket 7 received, guarantee the smooth and steady operation of weldment work, and then guarantee that the welding seam is straight neat, promote the welding quality of work piece.

The pointer 20 is fixedly arranged on the side wall of one end of one of the sliding blocks 14, a scale value 21 is arranged on the outer top outer wall of the single guide rail 6 close to the pointer 20, the pointer 20 faces the scale value 21, when the machine head 22 slides, the pointer 20 slides on the scale value 21, a worker can conveniently learn the length of a welding seam in real time, welding errors are prevented from being caused, and the welding effect and quality are improved.

The outer wall of the second frame body 17 is fixedly provided with a machine head 22, and the machine head 22 comprises a welding head and a fixing structure, wherein the welding head is used for welding a workpiece.

A workbench 23 is fixedly arranged at the top of the base 1, and the workbench 23 is used for placing workpieces needing to be welded.

The working principle of the utility model is as follows: the table 23 is used to place the workpieces to be welded, and the head 22 includes a welding head for welding the workpieces and a fixture.

After the workpiece is placed, the driving motor 9 is started through the controller, the output end of the driving motor is fixedly connected with the screw rod 10, the screw rod 10 is rotatably connected with the two vertical rods, and the threaded sleeve 11 is in threaded connection with the screw rod 10, so that the threaded sleeve 11 is driven to slide.

When the thread bush 11 slides, two transverse plates 13 respectively with the top and the bottom fixed connection of thread bush 11, because the both ends of every transverse plate 13 respectively with two slider 14 fixed connection, the bottom of expansion bracket 7 and the top fixed connection of two sliders 14, and then drive the aircraft nose 22 on the expansion bracket 7 and slide, weld the workpiece surface, cooperate with slider 14 through design gyro wheel 15, change the slidingtype drive of portal frame among the prior art into roll formula structure, compare in slider 14 direct and single guide 6 contact, the friction has been reduced, the wearing and tearing of spare part have been reduced, be favorable to promoting the life of guide rail and this mechanism, utilize the power of sliding structure hundredth to accomplish the removal of portal frame simultaneously, it is lighter and swift.

When the aircraft nose 22 is in the slip, pointer 20 slides on scale value 21, makes things convenient for the workman to learn the length of welding seam in real time, and then prevents to cause welding error, promotes welding effect and quality.

The first frame body 16 and the second frame body 17 are inserted and connected to form the telescopic frame 7, and the telescopic frame 7 is a portal frame of the mechanism.

At the welded in-process, if this mechanism receives the vibration, two expanding spring 19 play the cushioning effect, and two guide arms play the guide effect, guarantee that second support body 17 steadily slides on first support body 16 to weaken the vibrational force that expansion bracket 7 received, guarantee that weldment work moves smoothly steadily, and then guarantee that the welding seam is straight neat, promote the welding quality of work piece.

Claims

1. The utility model provides a portal frame moving mechanism of longmen friction stir welding lathe, includes base (1), its characterized in that: still include the controller, slide mechanism (2) and damper (3), the top in base (1) is established in slide mechanism (2), slide mechanism (2) are including drive assembly (4), two rolling subassembly (5) and two single guide rail (6), two single guide rail (6) are the symmetry and set up the top in base (1), drive assembly (4) are established between two guide rails, every rolling subassembly (5) all insert the top of establishing a single guide rail (6), damper (3) are including expansion bracket (7) and buffer assembly (8), expansion bracket (7) are fixed to be established at the top of two rolling subassembly (5), the inside in expansion bracket (7) is established in buffer assembly (8), drive assembly (4) are electric connection with the controller.

2. The gantry frame moving mechanism of the gantry friction stir welding machine tool according to claim 1, characterized in that: drive assembly (4) are including driving motor (9), lead screw (10) and thread bush (11), the top of base (1) is the symmetry and is provided with two and founds piece (12), rotatable setting of lead screw (10) is founded between piece (12) at two, driving motor (9) are fixed to be established at the top of base (1), the one end fixed connection of its output and lead screw (10), thread bush (11) threaded connection is on the outer wall of lead screw (10), the bottom and the top of thread bush (11) are all fixed and are equipped with diaphragm (13), driving motor (9) are connected with the controller electricity.

3. The gantry frame moving mechanism of the gantry friction stir welding machine tool according to claim 2, characterized in that: every rolling component (5) all includes slider (14) and a plurality of gyro wheel (15), and every slider (14) is all established at the top of a single guide rail (6) in the cover, and a plurality of gyro wheel (15) are the symmetry and set up on the inner wall of slider (14), and the both ends of every single guide rail (6) all are the symmetry and are provided with two spouts, and every gyro wheel (15) all laminates with the spout, the both ends of every diaphragm (13) respectively with two slider (14) fixed connection.

4. The gantry frame moving mechanism of the gantry friction stir welding machine tool according to claim 3, characterized in that: the telescopic frame (7) comprises a first frame body (16) and a second frame body (17), the first frame body (16) is fixedly arranged between the tops of the two sliding blocks (14), the second frame body (17) is sleeved on the outer wall of the top of the first frame body (16), and a through groove for the first frame body (16) to stretch is formed in the second frame body (17).

5. The gantry frame moving mechanism of the gantry friction stir welding machine tool according to claim 4, characterized in that: buffering subassembly (8) include two anticreep poles (18) and two expanding spring (19), and two anticreep poles (18) are the symmetry and set up at the inboard top that leads to the groove, and the bottom of every anticreep pole (18) all pegs graft with the inner wall of first support body (16), and every expanding spring (19) all overlap and establish on the first outer wall of an anticreep pole (18), and the top of the inner wall that leads to the groove and first support body (16) is contradicted with the both ends of every expanding spring (19) respectively.

6. The gantry frame moving mechanism of the gantry friction stir welding machine tool according to claim 5, characterized in that: and a pointer (20) is fixedly arranged on the side wall of one end of one of the sliding blocks (14), a scale value (21) is arranged on the outer top outer wall of the single guide rail (6) close to the pointer (20), and the pointer (20) faces the scale value (21).

7. The gantry frame moving mechanism of the gantry friction stir welding machine tool according to claim 6, characterized in that: a machine head (22) is fixedly arranged on the outer wall of the second frame body (17).

8. The gantry frame moving mechanism of the gantry friction stir welding machine tool according to claim 7, characterized in that: the top of the base (1) is fixedly provided with a workbench (23).