CN213857590U - Friction stir welding tool and welding system - Google Patents
Friction stir welding tool and welding system Download PDFInfo
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- CN213857590U CN213857590U CN202021508735.2U CN202021508735U CN213857590U CN 213857590 U CN213857590 U CN 213857590U CN 202021508735 U CN202021508735 U CN 202021508735U CN 213857590 U CN213857590 U CN 213857590U
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- stirring head
- shaft shoulder
- static shaft
- discharge
- welding
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- 238000003756 stirring Methods 0.000 title claims abstract description 83
- 238000003466 welding Methods 0.000 title claims abstract description 57
- 230000003068 static effect Effects 0.000 claims abstract description 60
- 238000007599 discharging Methods 0.000 claims abstract description 32
- 238000002360 preparation method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 21
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005476 soldering Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a friction stir welding tool and a welding system, which comprises a stirring head and a static shaft shoulder, wherein the static shaft shoulder has a hollow structure, the stirring head passes through the static shaft shoulder, and the static shaft shoulder and the stirring head are coaxial; the stirring head rotates along with the main shaft in a welding state, and the static shaft shoulder keeps static relative to the rotation of the stirring head in the welding state; a first discharging structure and a second discharging structure which are matched with each other are respectively arranged on the stirring head and the static shaft shoulder; the first discharging structure consists of a first annular boss arranged on the radial direction of the stirring head and a first discharging unit arranged on the static shaft shoulder; the second discharging structure consists of a second annular boss arranged on the radial direction of the stirring head and a second discharging unit arranged on the static shaft shoulder; the first discharge structure is closer to the workpiece to be welded than the second discharge structure in the axial direction. Welding materials in a gap between the stirring head and the static shaft shoulder can be removed through the arrangement of the upper layer of material discharge structure and the lower layer of material discharge structure, the service life of the assembly is prolonged, and the welding performance is improved.
Description
Technical Field
The utility model relates to a friction stir welding technical field, concretely relates to welding set and welding system thereof.
Background
The friction stir welding technology is characterized in that a welding tool is driven to synchronously rotate through high-speed rotation of a machine shaft, slowly pricks into a workpiece to be welded and moves along the position of a to-be-welded seam, and the material around the welding tool is plasticized and connected through the friction heat of the welding tool and the material to be welded serving as a welding heat source.
Static shoulder friction stir welding is a method developed on the basis of conventional friction stir welding. The static shaft shoulder has the functions of welding and rolling and absorbing heat, and is widely applied to friction stir welding. Friction between the stationary shoulder and the pin head generates more heat, which is detrimental to the performance of the weld joint. To prevent contact between the stationary shoulder and the pin, a clearance fit is typically used between the stationary shoulder and the pin. In the welding process, the welded material is softened under the action of the stirring head, and the plastic flow capacity is enhanced. The softened material can flow upwards along the gap between the static shaft shoulder and the stirring head under the upsetting action of the welding tool, and the accumulated material in the gap can gradually increase along with the increase of the welding distance, so that the abrasion degree of the matching surface of the stirring head and the static shaft shoulder is increased. In addition, friction between the pin and the stationary shoulder not only increases the wasteful consumption of energy, but also increases the additional heat input during welding. In long-distance welding, materials continuously entering the gap even enter the main shaft, and adverse effects are caused to a welding machine.
Along with the development of friction stir welding of robot, the trend of lightweight structure and miniaturization is strengthening, compares in the static shaft shoulder system of tradition, and the friction stir system that the robot adopted is compacter at present, leads to near static shaft shoulder and the stirring head fitting surface space less, is difficult to hold more material. In actual production, long welds can create more material in the stationary shoulder and pin gap that is stored, increasing the degree of wear between the stationary shoulder and pin mating surfaces.
SUMMERY OF THE UTILITY MODEL
For solving above-mentioned problem, make the material between static shaft shoulder and stirring head gap discharge fast, reduce the wearing and tearing of stirring head and static shaft shoulder, the utility model provides a friction stir welding's soldering set and welding system has seted up row material groove in static shaft shoulder side for the material of packing in static shaft shoulder and stirring needle has the passageway of the static shaft shoulder of outflow, and the stirring needle adopts two-stage boss structure simultaneously, so that the material flows the gap more easily in the packing gap.
The utility model provides a friction stir welding tool, which comprises a stirring head and a static shaft shoulder, wherein the static shaft shoulder has a hollow structure, the stirring head passes through the static shaft shoulder, and the static shaft shoulder and the stirring head are coaxial;
a first discharging structure and a second discharging structure which are matched with each other are respectively arranged on the stirring head and the static shaft shoulder;
the first discharging structure consists of a first annular boss arranged on the radial direction of the stirring head and a first discharging unit arranged on the static shaft shoulder;
the second discharging structure is composed of a second annular boss arranged on the radial direction of the stirring head and a second discharging unit arranged on the static shaft shoulder;
in the axial direction, the first discharge structure is closer to the workpiece to be welded than the second discharge structure.
Further, the first annular boss is farther from the workpiece to be welded than the first discharge unit in the direction along the main axis; the second annular boss is farther from the workpiece to be welded than the first discharge unit.
Further, in the direction along the main shaft, the distance between the first annular boss and the first discharge unit is 0-5 mm; the distance between the second annular boss and the second discharge unit is 0-5 mm; the thickness of the second annular boss is 0-5 mm.
The first and second discharge units include at least one discharge hole, respectively, and the first and second discharge units include the same or different number of discharge holes.
The first and second discharge units respectively include at least one discharge hole having a circular, square or elliptical shape.
The utility model also provides a friction stir welding system, which comprises a main shaft and a motor and is characterized by also comprising the welding tool; the stirring head of the welding tool is connected with the main shaft, and the stirring head rotates along with the main shaft under the drive of the output of the motor.
The utility model discloses technical scheme has following advantage: through the structure that changes stirring head and static shaft shoulder, the effectual gap that prevents between static shaft shoulder and the stirring head of material jam, simple structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a whole welding tool provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a stirring head provided in an embodiment of the present invention;
description of reference numerals:
1-a stirring head; 2-stationary shaft shoulder; 3-a first discharge unit; 4-a second discharge unit; 5-a second annular boss; 6-a first annular boss; 7-stationary shaft shoulder and stirring head clearance fit surface
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The utility model provides a friction stir welding set, which comprises a stirring head and a static shaft shoulder, wherein the static shaft shoulder is of a hollow structure, the stirring head passes through the static shaft shoulder to be connected with a main shaft, and the static shaft shoulder, the stirring head and the main shaft are coaxial; the stirring head rotates along with the main shaft in a welding state, and the static shaft shoulder keeps static relative to the rotation of the stirring head in the welding state,
a first discharging structure and a second discharging structure which are matched with each other are respectively arranged on the stirring head and the static shaft shoulder;
the first discharging structure consists of a first annular boss arranged on the radial direction of the stirring head and a first discharging unit arranged on the static shaft shoulder;
the second discharging structure is composed of a second annular boss arranged on the radial direction of the stirring head and a second discharging unit arranged on the static shaft shoulder;
in the axial direction, the first discharge structure is closer to the workpiece to be welded than the second discharge structure.
The first annular boss is farther from the workpiece to be welded than the first discharge unit in the axial direction; the second annular boss is farther from the workpiece to be welded than the first discharge hole.
The first and second discharge units include at least one discharge hole, respectively, and the first and second discharge units include the same or different number of discharge holes.
The first and second discharge units respectively include at least one discharge hole having a circular, square or elliptical shape.
The utility model also provides a friction stir welding system, which comprises a main shaft and a motor and is characterized by also comprising the welding tool; the stirring head of the welding tool is coaxially connected with the main shaft, and the stirring head rotates along with the main shaft under the output drive of the motor.
The following describes a specific implementation of the book utility model by taking example 1 as an example, but the invention is not limited thereto.
Example 1
The utility model provides a friction stir welding's soldering set, it includes stirring head 1 and static shaft shoulder 2, static shaft shoulder 2 has hollow structure (not shown), stirring head 1 passes static shaft shoulder 2 and links to each other with the main shaft (not shown), static shaft shoulder, stirring head and main shaft three are coaxial; the stirring head 1 rotates along with the main shaft in a welding state, and the static shaft shoulder 2 keeps static relative to the rotation of the stirring head in the welding state.
The stirring head 1 and the static shaft shoulder 2 are respectively provided with a first discharging structure and a second discharging structure which are matched with each other.
The first discharging structure consists of a first annular boss 6 arranged on the radial direction of the stirring head 1 and a first discharging unit 3 arranged on the static shaft shoulder; in this embodiment, the first discharging unit 3 is an oblong hole.
The second discharging structure consists of a second annular boss 5 arranged on the radial direction of the stirring head and a second discharging unit 4 arranged on the static shaft shoulder; in this embodiment, the second discharging unit 4 is a circular hole.
In the axial direction, the first discharge structure is closer to the workpiece to be welded than the second discharge structure.
In the axial direction, the first annular boss 6 is farther from the workpiece to be welded than the first discharge unit 3; the second annular boss 5 is farther from the workpiece to be welded than the first discharge unit 3.
In an alternative embodiment, the first discharge unit 3 and the second discharge unit 4 each comprise at least one discharge hole, the first discharge unit and the second discharge unit comprising the same or different number of discharge holes.
Alternatively, the first and second discharge units may include at least one discharge hole, respectively, the discharge hole having a circular, square or oval shape.
By this arrangement, it is possible to prevent the welding material from accumulating in the gap between the pin 1 and the stationary shoulder 2 and further entering upward into the main shaft.
Preferably, the distance between the first annular boss and the first discharge unit in the direction along the main axis is 0-5 mm; the distance between the second annular boss and the second discharge hole is 0-5 mm; the thickness of the second annular boss is 0-5 mm.
The utility model provides a friction stir welding soldering set can be applied to in friction stir welding's system, the system includes main shaft and motor, the soldering set links to each other with the main shaft, under the drive of motor the stirring head is rotatory along with the main shaft.
The utility model discloses a friction stir welding's soldering set is equipped with first discharge structure and second discharge structure on stirring head 1 and static shaft shoulder 2 cooperatedly, discharge structure comprises boss and the discharge unit that is located static shaft shoulder 2 that is located stirring head 1 radial upward respectively, and upper and lower two-stage discharge structure can play effectual barrier effect to the welding material who gets into the gap between static shaft shoulder and the stirring needle, provides the discharge passage, and first discharge structure can block most welding material and continue to get into and discharge it; the second discharge structure may further discharge the welding material that is not blocked in the first discharge structure. The boss and the combination of discharge unit can be with the quick gap between the static shaft shoulder of discharge and the stirring head of waste material, and then avoid in the welding material and static shaft shoulder and stirring head's friction to produce a large amount of heats, be unfavorable for the promotion of welding seam quality.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (7)
1. A friction stir welding tool comprises a stirring head and a static shaft shoulder, wherein the static shaft shoulder is of a hollow structure, the stirring head penetrates through the static shaft shoulder, and the static shaft shoulder and the stirring head are coaxial; it is characterized in that the preparation method is characterized in that,
a first discharging structure and a second discharging structure which are matched with each other are respectively arranged on the stirring head and the static shaft shoulder;
the first discharging structure consists of a first annular boss arranged on the radial direction of the stirring head and a first discharging unit arranged on the static shaft shoulder;
the second discharging structure is composed of a second annular boss arranged on the radial direction of the stirring head and a second discharging unit arranged on the static shaft shoulder;
in the axial direction, the first discharge structure is closer to the workpiece to be welded than the second discharge structure.
2. The bonding tool of claim 1, wherein, in a direction along the major axis,
the first annular boss is farther away from the workpiece to be welded than the first discharge unit;
the second annular boss is farther from the workpiece to be welded than the first discharge unit.
3. The bonding tool of claim 2, wherein, in an axial direction,
the distance between the first annular boss and the first discharge unit is 0-5 mm;
the distance between the second annular boss and the second discharge unit is 0-5 mm.
4. A bonding tool as claimed in any one of claims 1 to 3, wherein the thickness of the second annular land is 0 to 5 mm.
5. The bonding tool according to claim 4, wherein the first and second discharge units respectively include at least one discharge hole, and the first and second discharge units include the same or different number of discharge holes.
6. The bonding tool according to claim 4, wherein the first and second discharge units each include at least one discharge hole having a circular, square, or oval shape.
7. A friction stir welding system comprising a spindle and a motor, further comprising a bonding tool according to any one of claims 1-6; the stirring head of the welding tool is coaxially connected with the main shaft, and the stirring head rotates along with the main shaft under the output drive of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021508735.2U CN213857590U (en) | 2020-07-27 | 2020-07-27 | Friction stir welding tool and welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021508735.2U CN213857590U (en) | 2020-07-27 | 2020-07-27 | Friction stir welding tool and welding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213857590U true CN213857590U (en) | 2021-08-03 |
Family
ID=77033567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021508735.2U Active CN213857590U (en) | 2020-07-27 | 2020-07-27 | Friction stir welding tool and welding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213857590U (en) |
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2020
- 2020-07-27 CN CN202021508735.2U patent/CN213857590U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230420 Address after: Room 611-426, R&D Center Building, China (Hefei) International Intelligent Voice Industrial Park, 3333 Xiyou Road, High-tech Zone, Hefei City, Anhui Province, 230094 Patentee after: Anhui Wanyu mechanical equipment Technology Co.,Ltd. Address before: 215000 No.2 workshop, No.135 Zhangji Road, Kunshan Development Zone, Suzhou City, Jiangsu Province Patentee before: Kunshan Hagong Wanzhou Welding Research Institute Co.,Ltd. |