CN114473176A - Three-dimensional parallel friction stir welding spindle device - Google Patents
Three-dimensional parallel friction stir welding spindle device Download PDFInfo
- Publication number
- CN114473176A CN114473176A CN202210148035.4A CN202210148035A CN114473176A CN 114473176 A CN114473176 A CN 114473176A CN 202210148035 A CN202210148035 A CN 202210148035A CN 114473176 A CN114473176 A CN 114473176A
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- China
- Prior art keywords
- parallel
- mechanisms
- rack
- friction stir
- stir welding
- 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
Links
- 238000003466 welding Methods 0.000 title claims abstract description 38
- 238000003756 stirring Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 121
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 4
- 230000020347 spindle assembly Effects 0.000 claims 8
- 238000009434 installation Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
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
- B23K20/1245—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 characterised by the apparatus
-
- 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
- B23K20/1245—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 characterised by the apparatus
- B23K20/125—Rotary tool drive mechanism
-
- 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
- B23K20/1245—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 characterised by the apparatus
- B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention provides a three-dimensional parallel friction stir welding spindle device, which comprises a rack; the machine frame is cylindrical, a main machine head is fixed at the inner bottom of the machine frame, a plurality of groups of parallel mechanisms are installed on the main machine head, a plurality of lead screw mechanisms are arranged in each group of parallel mechanisms, and the lead screw mechanisms in the groups of parallel mechanisms are installed in parallel. The invention can realize the three-dimensional angle adjustment of the main head space while finishing the up-and-down movement of the main head, has sufficient structural rigidity and reliable connection, and can perfectly match the welding of a space three-dimensional curve welding seam; the independent drawing mechanism and the main shaft rotating mechanism are integrated on the main machine head, and the drawing action of the spatial three-dimensional curve welding seam can be perfectly realized.
Description
Technical Field
The invention relates to a three-dimensional parallel friction stir welding spindle device.
Background
The friction stir welding technology is a solid phase connection technology which is green, high-quality, high-efficiency, low in deformation and high in intelligent degree, and is widely applied to welding of aluminum, magnesium and alloy materials thereof. With the size complication of friction stir welding products and the multi-dimensionality of appearance characteristics, the traditional welding equipment cannot meet the current welding requirements, and particularly, the welding of a spatial three-dimensional curve welding seam and a keyhole-free welding seam becomes a bottleneck problem which is urgently solved in the technical field of friction stir welding at present.
Most of the friction stir welding spindle devices disclosed at present are of series structures, structural rigidity, bearing capacity and service life are seriously insufficient, and the requirements of thick plate welding with large upsetting force and welding of a spatial three-dimensional curve are difficult to meet for a long time.
Disclosure of Invention
In order to solve the technical problems, the invention provides the three-dimensional parallel friction stir welding main shaft device which can realize the three-dimensional angle adjustment of the main machine head space while finishing the up-and-down motion of the main machine head, has sufficient structural rigidity and reliable connection, and can perfectly match the welding of a spatial three-dimensional curve welding seam.
The invention is realized by the following technical scheme.
The invention provides a three-dimensional parallel friction stir welding spindle device, which comprises a frame; the machine frame is a cylinder, a main machine head is fixed at the inner bottom of the machine frame, a plurality of groups of parallel mechanisms are installed on the main machine head, a plurality of screw rod mechanisms are arranged in each group of parallel mechanisms, and the screw rod mechanisms in the plurality of groups of parallel mechanisms are installed in parallel.
The rack is in a square cylinder shape, the parallel mechanisms are in three groups and are respectively installed close to three side faces of the rack, and the side face, which is not close to the rack and is installed with the parallel mechanisms, is a fourth side face.
And a sliding block is arranged on the outer wall of the fourth side surface of the frame.
A rack screw mechanism is arranged on the rack and on the inner wall of the side surface of the rack close to the two opposite parallel mechanisms; the extending direction of the rack screw mechanism is positioned on the side surface normal of the rack; the rack screw mechanism is connected with a cable drag chain for restraining cables.
Two spherical hinge connecting rods are arranged in each group of parallel mechanisms, and the bottom parts of the spherical hinge connecting rods are connected with the main machine head in a spherical hinge mode; and a screw rod mechanism is arranged above the spherical hinge connecting rod.
The upper part of the spherical hinge connecting rod is connected with and provided with a lead screw mechanism through a guide rail sliding block mechanism; a servo motor is arranged at the top of one of the two screw rod mechanisms of each group of parallel mechanisms, and the servo motor synchronously drives the two screw rod mechanisms through a belt.
The main machine head consists of a movable platform, and a cutter mounting sleeve is arranged at the center of the bottom of the movable platform.
And the middle part of the top surface of the movable platform is provided with a transmission mechanism, and the transmission mechanism is provided with a main shaft rotating motor.
And the middle part of the top surface of the movable platform is also provided with a pumping-back mechanism, the output of the pumping-back mechanism is connected to a transmission mechanism, and the pumping-back mechanism is driven by a pumping-back motor through a speed reducer.
The invention has the beneficial effects that: the three-dimensional angle adjustment of the space of the main machine head can be realized while the up-and-down movement of the main machine head is finished, the structural rigidity is sufficient, the connection is reliable, and the welding of a space three-dimensional curve welding seam can be perfectly matched; the independent withdrawing mechanism and the main shaft rotating mechanism are integrated on the main machine head, and the withdrawing action of the spatial three-dimensional curve welding line can be perfectly realized.
Drawings
FIG. 1 is a schematic block diagram of at least one embodiment of the present invention;
FIG. 2 is a schematic diagram of the arrangement of the parallel mechanism of FIG. 1;
FIG. 3 is a schematic view of the frame of FIG. 1;
FIG. 4 is a schematic structural diagram of the main head of FIG. 1;
fig. 5 is a schematic structural diagram of the parallel mechanism in fig. 1.
In the figure: 1-parallel mechanism, 2-frame, 3-main head, 4-first parallel mechanism, 5-second parallel mechanism, 6-third parallel mechanism, 7-frame screw mechanism, 8-cable drag chain, 9-slide block, 10-drawing motor, 11-speed reducer, 12-drawing mechanism, 13-spindle rotating motor, 14-transmission mechanism, 15-movable platform, 16-cutter mounting sleeve, 17-servo motor, 18-first screw mechanism, 19-belt, 20-second screw mechanism, 21-guide rail slide block mechanism, 22-first spherical hinge connecting rod, 23-second spherical hinge connecting rod, 24-third spherical hinge connecting rod, 25-fourth spherical hinge connecting rod, 26-fifth spherical hinge connecting rod and 27-sixth spherical hinge connecting rod.
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.
Example 1
A three-dimensional parallel friction stir welding spindle device as shown in fig. 1 to 5, comprising a frame 2; the machine frame 2 is in a cylindrical shape, a main machine head 3 is fixed at the inner bottom of the machine frame, a plurality of groups of parallel mechanisms 1 are installed on the main machine head 3, a plurality of screw rod mechanisms are arranged in each group of parallel mechanisms 1, and the screw rod mechanisms in the groups of parallel mechanisms 1 are installed in parallel.
Example 2
Based on embodiment 1, the frame 2 is a square tube, the parallel mechanisms 1 are three groups and are respectively installed near three sides of the frame 2, and the side of the frame 2 where no parallel mechanism 1 is installed is a fourth side.
Example 3
According to the embodiment 2, the slide block 9 is installed on the outer wall of the fourth side surface of the frame 2.
Example 4
Based on the embodiment 2, a rack screw mechanism 7 is arranged on the rack 2 and on the inner wall of the side surface of the rack 2, which is close to the two opposite parallel mechanisms 1; the extending direction of the rack screw mechanism 7 is positioned on the side surface normal of the rack 2; the rack screw mechanism 7 is connected with a cable drag chain 8 for restraining cables.
Example 5
Based on the embodiment 1, each group of parallel mechanisms 1 is provided with two spherical hinge connecting rods, and the bottoms of the spherical hinge connecting rods are connected with the main machine head 3 in a spherical hinge mode; and a screw rod mechanism is arranged above the spherical hinge connecting rod.
Example 6
Based on the embodiment 5, the upper part of the spherical hinge connecting rod is connected with and provided with a screw rod mechanism through a guide rail sliding block mechanism 21; the top of one of the two screw mechanisms of each group of parallel mechanisms 1 is provided with a servo motor 17, and the servo motor 17 synchronously drives the two screw mechanisms through a belt 19.
Example 7
Based on the embodiment 1, the main head 3 is composed of a movable platform 15, and a cutter mounting sleeve 16 is arranged at the center of the bottom of the movable platform 15.
Example 8
Based on the embodiment 7, the transmission mechanism 14 is installed in the middle of the top surface of the movable platform 15, and the spindle rotating motor 13 is installed on the transmission mechanism 14.
Example 9
Based on embodiment 8, the central portion of the top surface of the movable platform 15 is further provided with a drawing mechanism 12, the output of the drawing mechanism 12 is connected to a transmission mechanism 14, and the drawing mechanism 12 is driven by a drawing motor 10 through a speed reducer 11.
Example 10
Based on the above embodiment, the method specifically includes: the parallel mechanism comprises a parallel mechanism 1, a frame 2 and a main machine head 3, wherein the parallel mechanism comprises a first parallel mechanism 4, a second parallel mechanism 5 and a third parallel mechanism 6.
The first parallel mechanism 4, the second parallel mechanism 5 and the third parallel mechanism 6 are similar in structure and comprise a servo motor 17, a first lead screw mechanism 18, a belt 19, a second lead screw mechanism 20 and a guide rail slider mechanism 21, the first parallel mechanism 4 further comprises a first spherical hinge connecting rod 22 and a second spherical hinge connecting rod 23, and the first parallel mechanism 4 is fixed on the left side of the rack 2 through the guide rail slider mechanism 21. The second parallel mechanism 5 further comprises a third spherical hinge connecting rod 24 and a fourth spherical hinge connecting rod 25, and the second parallel mechanism 5 is fixed on the upper side of the rack 2 through the guide rail sliding block mechanism 21. The third parallel mechanism 6 further comprises a fifth spherical hinge connecting rod 26 and a sixth spherical hinge connecting rod 27, and the third parallel mechanism 6 is fixed on the upper side of the frame 2 through the guide rail sliding block mechanism 21.
One end of each of the first spherical hinge connecting rod 22, the second spherical hinge connecting rod 23, the third spherical hinge connecting rod 24, the fourth spherical hinge connecting rod 25, the fifth spherical hinge connecting rod 26 and the sixth spherical hinge connecting rod 27 is connected with the parallel mechanism, the other end of each of the first spherical hinge connecting rod, the second spherical hinge connecting rod and the sixth spherical hinge connecting rod is connected with the movable platform 15, and welding requirements of welding seams with different angles can be met through parallel linkage of the parallel mechanism.
The rack 2 is square, a screw mechanism 7, a cable drag chain 8 and a slide block 9 are fixed on the rack, the screw mechanism 7 and the slide block 9 are used for realizing external connection of the device, and the cable drag chain 8 is used for restraining a main machine head cable.
The main machine head 3 comprises a drawing motor 10, a speed reducer 11, a drawing mechanism 12, a main shaft rotating motor 13, a transmission mechanism 14, a movable platform 15 and a cutter mounting sleeve 16.
The drawing mechanism 12 and the main shaft rotation transmission structure 14 do not interfere with each other, the drawing action is completed while the main shaft rotation is kept, the structure is reliable, and the movement is smooth.
Claims (9)
1. The utility model provides a three-dimensional friction stir welding spindle unit that connects in parallel, includes frame (2), its characterized in that: the machine frame (2) is in a cylindrical shape, a main machine head (3) is fixed to the inner bottom of the machine frame, a plurality of groups of parallel mechanisms (1) are installed on the main machine head (3), a plurality of lead screw mechanisms are arranged in each group of parallel mechanisms (1), and the lead screw mechanisms in the groups of parallel mechanisms (1) are installed in parallel.
2. The three-dimensional parallel friction stir welding spindle assembly of claim 1, wherein: the rack (2) is in a square cylinder shape, the parallel mechanisms (1) are in three groups and are respectively installed close to three side faces of the rack (2), and the side face of the rack (2) without the parallel mechanisms (1) close to installation is a fourth side face.
3. The three-dimensional parallel friction stir welding spindle assembly of claim 2, wherein: and a sliding block (9) is arranged on the outer wall of the fourth side surface of the frame (2).
4. The three-dimensional parallel friction stir welding spindle assembly of claim 2, wherein: a rack lead screw mechanism (7) is arranged on the inner wall of the side surface of the rack (2) close to the two groups of parallel mechanisms (1) which are opposite to each other on the rack (2); the extension direction of the rack screw mechanism (7) is positioned on the side surface normal of the rack (2); a cable drag chain (8) is connected and mounted on the rack screw mechanism (7) and used for restraining a cable.
5. The three-dimensional parallel friction stir welding spindle assembly of claim 1, wherein: two spherical hinge connecting rods are arranged in each group of parallel mechanisms (1), and the bottom parts of the spherical hinge connecting rods are connected with the main machine head (3) in a spherical hinge mode; and a screw rod mechanism is arranged above the spherical hinge connecting rod.
6. The three-dimensional parallel friction stir welding spindle assembly of claim 5, wherein: a lead screw mechanism is connected and installed above the spherical hinge connecting rod through a guide rail sliding block mechanism (21); a servo motor (17) is arranged at the top of one of the two screw mechanisms of each group of parallel mechanisms (1), and the servo motor (17) synchronously drives the two screw mechanisms through a belt (19).
7. The three-dimensional parallel friction stir welding spindle assembly of claim 1, wherein: the main machine head (3) is composed of a movable platform (15), and a cutter mounting sleeve (16) is arranged at the center of the bottom of the movable platform (15).
8. The three-dimensional parallel friction stir welding spindle assembly of claim 7 wherein: the middle of the top surface of the movable platform (15) is provided with a transmission mechanism (14), and the transmission mechanism (14) is provided with a spindle rotating motor (13).
9. The three-dimensional parallel friction stir welding spindle assembly of claim 8 wherein: the middle part of the top surface of the movable platform (15) is also provided with a withdrawing mechanism (12), the output of the withdrawing mechanism (12) is connected to a transmission mechanism (14), and the withdrawing mechanism (12) is driven by a withdrawing motor (10) through a speed reducer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210148035.4A CN114473176A (en) | 2022-02-17 | 2022-02-17 | Three-dimensional parallel friction stir welding spindle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210148035.4A CN114473176A (en) | 2022-02-17 | 2022-02-17 | Three-dimensional parallel friction stir welding spindle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114473176A true CN114473176A (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210148035.4A Pending CN114473176A (en) | 2022-02-17 | 2022-02-17 | Three-dimensional parallel friction stir welding spindle device |
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| CN (1) | CN114473176A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203003336U (en) * | 2012-11-12 | 2013-06-19 | 上海航天设备制造总厂 | Pumpback type friction stir welding spindle head with differential rotation of stirring needle and shaft shoulder |
| CN106342136B (en) * | 2010-09-30 | 2014-02-12 | 上海航天设备制造总厂 | The stirring-head pumpback device of agitating friction bonding machine bed |
| CN103909518A (en) * | 2014-03-11 | 2014-07-09 | 浙江理工大学 | Hybrid robot for stirring friction welding in redundant drive space |
| CN105598574A (en) * | 2014-11-18 | 2016-05-25 | 上海航天设备制造总厂 | Friction stirring seam welding and spot welding integrated spindle |
| CN105710529A (en) * | 2014-12-05 | 2016-06-29 | 上海航天设备制造总厂 | Pumpback type friction stir welding head based on parallel mechanism |
| CN105834576A (en) * | 2016-05-03 | 2016-08-10 | 浙江理工大学 | Redundant-driven friction stir welding parallel robot |
| CN205702834U (en) * | 2016-05-03 | 2016-11-23 | 浙江理工大学 | A kind of agitating friction weldering parallel robot of redundant drive |
| CN106891089A (en) * | 2017-03-27 | 2017-06-27 | 宁波海天精工股份有限公司 | A kind of multiplex main axle structure |
| CN108465929A (en) * | 2018-01-22 | 2018-08-31 | 清华大学 | A kind of agitating friction welder and the stirring friction welding system including it |
| CN108655558A (en) * | 2018-05-25 | 2018-10-16 | 河北工程大学 | A kind of hard and soft cooperation friction stir weld device |
| CN108817652A (en) * | 2018-09-17 | 2018-11-16 | 安徽理工大学 | A kind of four-degree-of-freedom parallel connection friction stir welding machine device people |
| CN110605474A (en) * | 2019-09-17 | 2019-12-24 | 贵州航天天马机电科技有限公司 | Synchronous driving six-rod drawing-back type three-dimensional parallel friction stir welding device |
-
2022
- 2022-02-17 CN CN202210148035.4A patent/CN114473176A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106342136B (en) * | 2010-09-30 | 2014-02-12 | 上海航天设备制造总厂 | The stirring-head pumpback device of agitating friction bonding machine bed |
| CN203003336U (en) * | 2012-11-12 | 2013-06-19 | 上海航天设备制造总厂 | Pumpback type friction stir welding spindle head with differential rotation of stirring needle and shaft shoulder |
| CN103909518A (en) * | 2014-03-11 | 2014-07-09 | 浙江理工大学 | Hybrid robot for stirring friction welding in redundant drive space |
| CN105598574A (en) * | 2014-11-18 | 2016-05-25 | 上海航天设备制造总厂 | Friction stirring seam welding and spot welding integrated spindle |
| CN105710529A (en) * | 2014-12-05 | 2016-06-29 | 上海航天设备制造总厂 | Pumpback type friction stir welding head based on parallel mechanism |
| CN105834576A (en) * | 2016-05-03 | 2016-08-10 | 浙江理工大学 | Redundant-driven friction stir welding parallel robot |
| CN205702834U (en) * | 2016-05-03 | 2016-11-23 | 浙江理工大学 | A kind of agitating friction weldering parallel robot of redundant drive |
| CN106891089A (en) * | 2017-03-27 | 2017-06-27 | 宁波海天精工股份有限公司 | A kind of multiplex main axle structure |
| CN108465929A (en) * | 2018-01-22 | 2018-08-31 | 清华大学 | A kind of agitating friction welder and the stirring friction welding system including it |
| CN108655558A (en) * | 2018-05-25 | 2018-10-16 | 河北工程大学 | A kind of hard and soft cooperation friction stir weld device |
| CN108817652A (en) * | 2018-09-17 | 2018-11-16 | 安徽理工大学 | A kind of four-degree-of-freedom parallel connection friction stir welding machine device people |
| CN110605474A (en) * | 2019-09-17 | 2019-12-24 | 贵州航天天马机电科技有限公司 | Synchronous driving six-rod drawing-back type three-dimensional parallel friction stir welding device |
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Application publication date: 20220513 |