CN105171326A - Hollow shaft welding fixture and method thereof - Google Patents
Hollow shaft welding fixture and method thereof Download PDFInfo
- Publication number
- CN105171326A CN105171326A CN201510565788.5A CN201510565788A CN105171326A CN 105171326 A CN105171326 A CN 105171326A CN 201510565788 A CN201510565788 A CN 201510565788A CN 105171326 A CN105171326 A CN 105171326A
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- block
- screw mandrel
- circular cone
- fixture
- hollow shaft
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- 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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a hollow shaft welding fixture and a method thereof. Support discs are respectively arranged at the two ends of an I-shaped support frame; three dovetail guide grooves are evenly distributed on the end surfaces of the left and right support discs; each dovetail guide groove is embedded with a fan-shaped slide block capable of sliding along the guide groove; three fan-shaped slide blocks at each side are formed to an inner hole having a taper angle; conical wedges are matched in the inner holes; a first lead screw is rotationally matched with a thread on the I-shaped support frame by penetrating through a through hole in the conical wedge at the right side; the left end of the first lead screw is connected with the conical wedge at the left side; a second lead screw penetrates through the conical wedge at the right side; the conical wedge at the right side is axially positioned on the second lead screw; the second lead screw is rotationally matched with the thread on the I-shaped support frame; a rotating motion of the lead screws drives an axial linear motion of the conical wedges; and the axial linear motion of the conical wedges enables the fan-shaped slide blocks to move on the guide grooves in the radial direction; and the outer circular surfaces of the fan-shaped slide blocks and the inner wall surfaces of parts to be welded generate pressure to realize the clamping so as to adapt to the clamping positioning of different hollow shafts.
Description
Technical field
The present invention relates to a kind of fixture and method thereof of welding hollow shaft, belong to welding shaft part equipment technology field.
Background technology
Welding of the welding of hollow shaft type parts and solid shafting and hollow shaft often can be related in industrial production; along with the development of technology and the in short supply of the energy; the advantage that hollow shaft is few with its consumptive material, quality is light; under the prerequisite meeting properties instructions for use; replace solid shafting gradually, become the trend of research and development.
Conventional welding hollow shaft method for positioning and clamping has: one is that two sections of axles clamp rotation respectively, this method is simple to operate, and universal fixturing can meet the demands, but also there is shortcoming, axiality is difficult to ensure, the welding axiality of hollow shaft type parts directly affects weldquality; Another kind method adopts mandrel to position, required mandrel is and hollow shaft interference fits, the advantage of this method to ensure two sections of axialities treating weldment, shortcoming is the hollow shaft that a kind of mandrel of size can only be applicable to same apertures, and versatility is poor, in addition, after having welded, mandrel cannot take out, and not only have impact on the quality of part, cannot meet instructions for use to some parts.
Summary of the invention
The object of the invention is the deficiency overcoming prior art existence, a kind of fixture and method thereof of welding hollow shaft are provided, to location clamping during two sections of welding hollow shafts.
Object of the present invention is achieved through the following technical solutions:
The fixture of welding hollow shaft, feature is: comprise I-shaped support frame and quadrant block, the two ends of I-shaped support frame are respectively equipped with supporting disk, the end face of left and right supporting disk is evenly equipped with three dovetail guide grooves, angle between adjacent dovetail guide groove is 120 °, each dovetail guide groove is all embedded with the quadrant block that can slide along guide groove, three quadrant blocks of every side form the endoporus with cone angle, be fitted with associated circular cone in endoporus and carve block, the screw thread that first screw mandrel is carved on block on through hole and I-shaped support frame through right side circular cone screws, and the left end of the first screw mandrel is carved block with left side circular cone and is connected, second screw mandrel carves block through right side circular cone, and right side circular cone is carved block and is axially positioned on the second screw mandrel, screw thread on second screw mandrel and I-shaped support frame screws, on the left of the rotational movement of the first screw mandrel, circular cone carves block axial linear movement, on the right side of the rotational movement of the second screw mandrel, circular cone carves block axial linear movement, left side circular cone carves the axial linear movement that block and right side circular cone carve block makes quadrant block radially move on guide groove.
Further, the fixture of above-mentioned welding hollow shaft, wherein, the cylindrical of described quadrant block is provided with groove, is embedded with ring spring in groove.
Further, the fixture of above-mentioned welding hollow shaft, wherein, the body diameter of described I-shaped support frame interlude is less than the diameter of two ends supporting disk, and interlude is provided with the screwed hole for matching with the first screw mandrel and the second screw mandrel.
Further, the fixture of above-mentioned welding hollow shaft, wherein, the periphery of described quadrant block is matsurface.
Again further, the fixture of above-mentioned welding hollow shaft, wherein, the end of described first screw mandrel and the second screw mandrel external part is provided with annulus.
Above-mentioned fixture realizes the method for welding hollow shaft, comprises the following steps:
(1) left end of fixture is put into the axis hole of one section of to-be-welded pieces, rotate the first screw mandrel, on the left of the rotational movement of the first screw mandrel, circular cone carves block axial linear movement, the axial linear movement that left side circular cone carves block makes on left support dish three quadrant blocks radially move on guide groove, its diameter becomes large, the periphery of quadrant block and the internal face of to-be-welded pieces produce pressure, thus clamp this section of to-be-welded pieces;
(2) fixture right-hand member is placed in the axis hole of another section of to-be-welded pieces, ensure two sections of to-be-welded pieces close contacts, rotate the second screw mandrel, on the right side of the rotational movement of the second screw mandrel, circular cone carves block axial linear movement, the axial linear movement that right side circular cone carves block makes on right support dish three quadrant blocks radially move on guide groove, its diameter becomes large, and the periphery of quadrant block and the internal face of to-be-welded pieces produce pressure, thus clamp this section of to-be-welded pieces;
(3) make two sections of to-be-welded pieces be fastenedly connected, ensure hollow shaft axiality, entirety adopted scroll chuck to clamp and rotate, weld;
(4) after having welded, reversely rotate the first screw mandrel and the second screw mandrel, the quadrant block on supporting disk is radially inwardly moved on guide groove, makes it shrink and discharge workpiece, fixture is taken out.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progress are mainly reflected in:
The present invention is novel in design, and effectively can ensure axiality when hollow shaft type parts welds, and conveniently take out fixture after welding completes, fixture is reusable, cost-saving.In addition, fixture is applicable to the Set and Positioning of pore size different hollow shafts within the specific limits, and versatility is better.Ease in use, simple and easy applicable, be the new design of a practicality.
Accompanying drawing explanation
Fig. 1: the decomposition texture schematic diagram of fixture of the present invention;
Fig. 2: the cross-sectional schematic of fixture of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
As Fig. 1, shown in Fig. 2, the fixture of welding hollow shaft, comprise I-shaped support frame 4 and quadrant block 3, the two ends of I-shaped support frame 4 are respectively equipped with supporting disk, the end face of left and right supporting disk is evenly equipped with three dovetail guide grooves, angle between adjacent dovetail guide groove is 120 °, each dovetail guide groove is all embedded with the quadrant block 3 that can slide along guide groove, three quadrant blocks of every side form the endoporus with cone angle, be fitted with associated circular cone in endoporus and carve block 2, the screw thread that first screw mandrel 7 is carved on block on through hole and I-shaped support frame through right side circular cone screws, and the left end of the first screw mandrel 7 is carved block with left side circular cone and is connected, second screw mandrel 6 carves block through right side circular cone, and right side circular cone is carved block and is axially positioned on the second screw mandrel, second screw mandrel 6 screws with the screw thread on I-shaped support frame, on the left of the rotational movement of the first screw mandrel 7, circular cone carves block axial linear movement, on the right side of the rotational movement of the second screw mandrel 6, circular cone carves block axial linear movement, left side circular cone carves the axial linear movement that block and right side circular cone carve block makes quadrant block radially move on guide groove.Workpiece 5 is hollow shaft, comprises two sections of to-be-welded pieces, need carry out butt welding, and fixture positions clamping to workpiece 5 and is connected.
Wherein, the cylindrical of quadrant block is provided with groove, is embedded with ring spring 1 in groove, and spring force shrinks quadrant block and gets back to center.The body diameter of the interlude of I-shaped support frame 4 is less than the diameter of two ends supporting disk, and interlude is provided with the screwed hole for matching with the first screw mandrel and the second screw mandrel.The periphery of quadrant block is matsurface, and to increase the frictional force with inner wall of hollow shaft, thus it is fastening to realize clamping.The end of the first screw mandrel 7 and the second screw mandrel 6 external part is provided with annulus, is convenient to manual rotation stock, lengthens when weldment is longer to stock.
When above-mentioned fixture is used for welding hollow shaft, processing step is:
(1) left end of fixture is put into the axis hole of one section of to-be-welded pieces, rotate the first screw mandrel 7, on the left of the rotational movement of the first screw mandrel, circular cone carves block axial linear movement, the axial linear movement that left side circular cone carves block makes on left support dish three quadrant blocks radially move on guide groove, its diameter becomes large, the periphery of quadrant block and the internal face of to-be-welded pieces produce pressure, thus clamp this section of to-be-welded pieces;
(2) fixture right-hand member is placed in the axis hole of another section of to-be-welded pieces, ensure two sections of to-be-welded pieces close contacts, rotate the second screw mandrel 6, on the right side of the rotational movement of the second screw mandrel, circular cone carves block axial linear movement, the axial linear movement that right side circular cone carves block makes on right support dish three quadrant blocks radially move on guide groove, its diameter becomes large, and the periphery of quadrant block and the internal face of to-be-welded pieces produce pressure, thus clamp this section of to-be-welded pieces;
(3) make two sections of to-be-welded pieces be fastenedly connected, ensure hollow shaft axiality, entirety adopted scroll chuck to clamp and rotate, weld;
(4), after having welded, reversely rotate the first screw mandrel 7 and the second screw mandrel 6, the quadrant block on supporting disk is radially inwardly moved on guide groove, makes it shrink and discharge workpiece, fixture is taken out.
In sum, the present invention designs uniqueness, novel structure, and effectively can ensure axiality when hollow shaft type parts welds, and conveniently take out fixture after welding completes, fixture is reusable, cost-saving.In addition, fixture is applicable to the Set and Positioning of pore size different hollow shafts within the specific limits, and versatility is better.
It is to be understood that: the above is only the preferred embodiment of the present invention; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. the fixture of welding hollow shaft, it is characterized in that: comprise I-shaped support frame and quadrant block, the two ends of I-shaped support frame are respectively equipped with supporting disk, the end face of left and right supporting disk is evenly equipped with three dovetail guide grooves, angle between adjacent dovetail guide groove is 120 °, each dovetail guide groove is all embedded with the quadrant block that can slide along guide groove, three quadrant blocks of every side form the endoporus with cone angle, be fitted with associated circular cone in endoporus and carve block, the screw thread that first screw mandrel is carved on block on through hole and I-shaped support frame through right side circular cone screws, and the left end of the first screw mandrel is carved block with left side circular cone and is connected, second screw mandrel carves block through right side circular cone, and right side circular cone is carved block and is axially positioned on the second screw mandrel, screw thread on second screw mandrel and I-shaped support frame screws, on the left of the rotational movement of the first screw mandrel, circular cone carves block axial linear movement, on the right side of the rotational movement of the second screw mandrel, circular cone carves block axial linear movement, left side circular cone carves the axial linear movement that block and right side circular cone carve block makes quadrant block radially move on guide groove.
2. the fixture of welding hollow shaft according to claim 1, is characterized in that: the cylindrical of described quadrant block is provided with groove, is embedded with ring spring in groove.
3. the fixture of welding hollow shaft according to claim 1, is characterized in that: the body diameter of described I-shaped support frame interlude is less than the diameter of two ends supporting disk, and interlude is provided with the screwed hole for matching with the first screw mandrel and the second screw mandrel.
4. the fixture of welding hollow shaft according to claim 1, is characterized in that: the periphery of described quadrant block is matsurface.
5. the fixture of welding hollow shaft according to claim 1, is characterized in that: the end of described first screw mandrel and the second screw mandrel external part is provided with annulus.
6. utilize fixture described in claim 1 to realize the method for welding hollow shaft, it is characterized in that: comprise the following steps:
(1) left end of fixture is put into the axis hole of one section of to-be-welded pieces, rotate the first screw mandrel, on the left of the rotational movement of the first screw mandrel, circular cone carves block axial linear movement, the axial linear movement that left side circular cone carves block makes on left support dish three quadrant blocks radially move on guide groove, its diameter becomes large, the periphery of quadrant block and the internal face of to-be-welded pieces produce pressure, thus clamp this section of to-be-welded pieces;
(2) fixture right-hand member is placed in the axis hole of another section of to-be-welded pieces, ensure two sections of to-be-welded pieces close contacts, rotate the second screw mandrel, on the right side of the rotational movement of the second screw mandrel, circular cone carves block axial linear movement, the axial linear movement that right side circular cone carves block makes on right support dish three quadrant blocks radially move on guide groove, its diameter becomes large, and the periphery of quadrant block and the internal face of to-be-welded pieces produce pressure, thus clamp this section of to-be-welded pieces;
(3) make two sections of to-be-welded pieces be fastenedly connected, ensure hollow shaft axiality, entirety adopted scroll chuck to clamp and rotate, weld;
(4) after having welded, reversely rotate the first screw mandrel and the second screw mandrel, the quadrant block on supporting disk is radially inwardly moved on guide groove, makes it shrink and discharge workpiece, fixture is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565788.5A CN105171326A (en) | 2015-09-08 | 2015-09-08 | Hollow shaft welding fixture and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565788.5A CN105171326A (en) | 2015-09-08 | 2015-09-08 | Hollow shaft welding fixture and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105171326A true CN105171326A (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565788.5A Pending CN105171326A (en) | 2015-09-08 | 2015-09-08 | Hollow shaft welding fixture and method thereof |
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| Country | Link |
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| CN (1) | CN105171326A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665977A (en) * | 2016-04-13 | 2016-06-15 | 羊丁 | Intelligent welding robot |
| CN107214405A (en) * | 2017-05-22 | 2017-09-29 | 彭州市长庆全成技术开发有限公司 | A kind of end plug chuck |
| CN107322224A (en) * | 2017-08-18 | 2017-11-07 | 中国航发贵州黎阳航空动力有限公司 | A kind of device and method for annular heat screen laser boring |
| CN111036443A (en) * | 2019-12-09 | 2020-04-21 | 日照市伟业工具股份有限公司 | Paint spraying apparatus is used in construction scaffolding production |
| CN113001078A (en) * | 2019-12-19 | 2021-06-22 | 天津平高智能电气有限公司 | Clamping tool for welding gas tank |
-
2015
- 2015-09-08 CN CN201510565788.5A patent/CN105171326A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665977A (en) * | 2016-04-13 | 2016-06-15 | 羊丁 | Intelligent welding robot |
| CN107214405A (en) * | 2017-05-22 | 2017-09-29 | 彭州市长庆全成技术开发有限公司 | A kind of end plug chuck |
| CN107322224A (en) * | 2017-08-18 | 2017-11-07 | 中国航发贵州黎阳航空动力有限公司 | A kind of device and method for annular heat screen laser boring |
| CN107322224B (en) * | 2017-08-18 | 2019-11-08 | 中国航发贵州黎阳航空动力有限公司 | A kind of device and method for annular heat screen laser boring |
| CN111036443A (en) * | 2019-12-09 | 2020-04-21 | 日照市伟业工具股份有限公司 | Paint spraying apparatus is used in construction scaffolding production |
| CN113001078A (en) * | 2019-12-19 | 2021-06-22 | 天津平高智能电气有限公司 | Clamping tool for welding gas tank |
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Application publication date: 20151223 |