CN109093377B - Combined assembling mechanism and assembling method for sleeve - Google Patents
Combined assembling mechanism and assembling method for sleeve Download PDFInfo
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- CN109093377B CN109093377B CN201710466491.2A CN201710466491A CN109093377B CN 109093377 B CN109093377 B CN 109093377B CN 201710466491 A CN201710466491 A CN 201710466491A CN 109093377 B CN109093377 B CN 109093377B
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- frame
- upper frame
- assembly
- hydraulic cylinder
- sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
Abstract
The invention belongs to the field of assembly of oil immersed bushings, in particular to a bushing combined assembly mechanism and an assembly method thereof.A hydraulic lifting frame is arranged in a pit, and a bushing fixing frame for fixing a bushing is arranged on the hydraulic lifting frame; the assembly device is characterized in that a portal frame is arranged on an assembly station, an upper frame of the portal frame is hinged to a vertical frame, one end of the portal frame is connected with an output end of an upper frame opening hydraulic cylinder arranged on the vertical frame, the other end of the portal frame is a free end and is connected with the vertical frame during sleeve assembly, and the upper frame is driven by the upper frame opening hydraulic cylinder to realize opening and closing; and a pressing hydraulic cylinder which is switched along with the upper frame is arranged on the upper frame, and the pressing hydraulic cylinder compresses a spring in the oil collecting box through a pressing tool during the assembly of the sleeve. The invention not only improves the production efficiency, simplifies the assembly process of the sleeve, but also eliminates the potential safety hazard, and can ensure that the assembly process of the sleeve is safe, reliable and efficient.
Description
Technical Field
The invention belongs to the field of assembly of oil immersed bushings, and particularly relates to a bushing combined assembly mechanism and an assembly method thereof.
Background
The oil immersed transformer bushing is composed of a lower porcelain bushing, a middle flange, an upper porcelain bushing, an oil collecting box, a press-mounting spring, a core and the like. The assembly of the sleeve is to assemble all parts together in sequence, and the lower porcelain bushing, the middle flange, the upper porcelain bushing, the oil collecting box and the like are connected in series with a certain tensioning force through a pressure mounting spring tensioning core in the oil collecting box, so that the good sealing among all parts is ensured.
The pulling force of the spring reaches about 7 tons after the sleeve is assembled. A set of pressure devices must be provided to initially compress the springs within the sump housing by a sufficient amount to achieve the desired pressure during assembly. The existing various sleeve pipe assembling modes are different, as shown in fig. 1, most manufacturers in China install a tensioning fixing tool 3 on a sleeve pipe bracket 2 during the assembly of a sleeve pipe 1, and compress a spring 4 in an oil collecting box 5 through a jack 6 by means of the tensioning fixing tool 3. Some joint ventures adopt a single arm support (a rotating arm 10) to compress a spring 4 through a hydraulic cylinder 9, as shown in figure 2; the sleeve 1 is placed on the assembling frame 7, the hydraulic cylinder 9 is installed on the rotating arm 10, and the output end compresses the spring 4 in the oil collecting box 5 through the compression spring tool 8. By means of the tool, the operation process is very complex, the tool is quite complicated to disassemble and fix the jack, the efficiency is low, and certain potential safety hazards exist. Although the efficiency of assembling the casing by adopting the single-arm support is improved, the stress condition is not ideal because the single-arm support belongs to the cantilever beam during assembling, and certain potential safety hazards also exist.
Disclosure of Invention
In order to solve the above problems of the conventional bushing assembly, the present invention provides a bushing assembly assembling mechanism and an assembling method thereof.
The purpose of the invention is realized by the following technical scheme:
the assembling mechanism comprises a hydraulic lifting frame, a sleeve fixing frame, a portal frame, a pressing hydraulic cylinder and an upper frame opening hydraulic cylinder, wherein the hydraulic lifting frame is arranged in a pit, and the sleeve fixing frame for fixing a sleeve is arranged on the hydraulic lifting frame; the assembly device comprises a portal frame, a sleeve pipe opening hydraulic cylinder, a portal frame, a vertical frame, a sleeve pipe opening hydraulic cylinder, a sleeve pipe and a hydraulic control system, wherein the portal frame is arranged on an assembly station, an upper frame of the portal frame is hinged to the vertical frame, one end of the portal frame is connected with the output end of the upper frame opening hydraulic cylinder arranged on the vertical frame, the other end of the portal frame; a pressing hydraulic cylinder which is switched on and off along with the upper frame is arranged on the upper frame, and the pressing hydraulic cylinder compresses a spring in the oil collecting box through a pressing tool during the assembly of the sleeve;
wherein: an assembly platform is arranged in the middle of the pit opening, an assembly station is arranged on each of the left side and the right side of the assembly platform, and the hydraulic lifting frame is arranged in the pit of each assembly station;
the front upright frame and the rear upright frame of the portal frame are respectively fixed on the opposite inner walls of the pit, the upper frame is hinged to one of the upright frames, and the other end of the upper frame is connected with the other upright frame through an upper frame locking shaft; the upper frame is driven to rotate at 0-90 degrees by an upper frame opening hydraulic cylinder;
the pressing hydraulic cylinder is arranged in the middle of the upper frame; the lifting height of the hydraulic lifting frame is flush with the opening of the pit;
the assembling method of the thimble combined assembling mechanism comprises the following steps:
before assembly, firstly, the sleeve fixing frame is arranged on a hydraulic lifting frame, a lower porcelain sleeve, a core, a middle flange, an upper porcelain sleeve and an oil collecting box of the sleeve are sequentially sleeved, and the height of the hydraulic lifting frame is adjusted to adapt to operation on an assembly platform; placing a spring into the oil collecting box, sleeving a pressing plate and a locking nut, placing a pressing tool on the pressing plate, driving an upper frame through an upper frame opening hydraulic cylinder to close the upper frame, and fixing the upper frame and a vertical frame through an upper frame locking shaft; starting a pressing hydraulic cylinder to enable the pressing hydraulic cylinder to be abutted to a pressing tool; the pressing hydraulic cylinder compresses the spring until the compression requirement is met, the locking nut is screwed, the pressing hydraulic cylinder is retracted, the pressing tool is taken down, the upper frame locking shaft is opened, the hydraulic cylinder is opened through the upper frame to lift the upper frame, the product is lifted out after the upper end cover of the sleeve is assembled, and the assembling process is completed;
the assembly stations on the two sides of the assembly platform can be operated simultaneously; the pressing hydraulic cylinder compresses the spring, measures the spring compression amount of the spring at the same time, and screws the locking nut after the set requirement is met.
The invention has the advantages and positive effects that:
the invention not only improves the production efficiency, simplifies the assembly process of the sleeve, but also eliminates the potential safety hazard, and can ensure that the assembly process of the sleeve is safe, reliable and efficient.
Drawings
FIG. 1 is a schematic structural diagram of a conventional casing assembling process by means of a tooling;
FIG. 2 is a schematic structural diagram of a conventional casing assembly using a single boom;
FIG. 3 is a front view of the assembled mechanism of the present invention;
FIG. 4 is a structural left side view of the combined ferrule assembly mechanism of the present invention;
FIG. 5 is a schematic view of the assembled and fixed structure of the bushing of the present invention;
FIG. 6 is a view showing the working state of the gantry with the upper frame opened in the assembling mechanism of the sleeve assembly of the present invention;
FIG. 7 is a schematic view of the assembled state of the present invention;
wherein: 1 is the sleeve pipe, 2 is the sleeve pipe support, 3 is taut fixed frock, 4 is the spring, 5 is the collection oil box, 6 is the jack, 7 is the assembly jig, 8 is the pressure spring frock, 9 is the pneumatic cylinder, 10 is the swinging boom, 11 is the pit, 12 is the hydraulic pressure crane, 13 is the sleeve pipe mount, 14 is assembly platform, 15 is the portal frame, 16 is the upper ledge, 17 is the upright frame, 18 is for compressing tightly the pneumatic cylinder, 19 is the upper ledge and opens the pneumatic cylinder, 20 is for compressing tightly the frock, 21 is lock nut, 22 is the clamp plate, 23 is the pneumatic cylinder pressure head, 24 is the upper ledge lock axle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3 to 7, the casing combined assembly mechanism of the present invention includes a hydraulic crane 12, a casing fixing frame 13, a portal frame 15, a pressing hydraulic cylinder 18 and an upper frame opening hydraulic cylinder 19, wherein the hydraulic crane 12 is disposed in the pit 11, and a lifting height of the hydraulic crane 12 is flush with an opening of the pit. A sleeve fixing frame 13 for fixing the sleeve 1 is arranged on the hydraulic lifting frame 12, and the sleeve fixing frame 13 is positioned in the middle of the upper surface of the hydraulic lifting frame 12. The portal frame 15 is installed on an assembling station, a front upright frame 17 and a rear upright frame 17 of the portal frame 15 are respectively fixed on the opposite inner walls of the pit 11, the upper frame 16 is hinged to one upright frame 17, one end of the upper frame is connected with the output end of an upper frame opening hydraulic cylinder 19 installed on the upright frame 17, the other end of the upper frame opening hydraulic cylinder is a free end, and the upper frame opening hydraulic cylinder is connected with the other upright frame 17 through an upper frame locking shaft 24 during sleeve assembling. The upper frame 16 is driven by the upper frame opening hydraulic cylinder 19 to be switched on and off, and rotates at 0-90 degrees. A pressing hydraulic cylinder 18 (the pressing hydraulic cylinder 18 of the invention is a 10-ton hydraulic cylinder) which is opened and closed along with the upper frame 16 is arranged on the upper frame 16, the pressing hydraulic cylinder 18 is arranged at the middle position of the upper frame 16, and the spring 4 in the oil collecting box 5 is compressed by a pressing tool 20 when the sleeve 1 is assembled.
In order to improve the assembly efficiency of the casing, an assembly platform 14 can be arranged at the middle position of the opening of the pit 11, and the height of the assembly platform 14 ensures that the highest product meets the assembly requirement when the lifting frame is to the lowest position. The left side and the right side of the assembling platform 14 are respectively provided with an assembling station, and a pit 11 of each assembling station is provided with a hydraulic lifting frame 12.
The assembling method of the thimble combined assembling mechanism comprises the following steps:
before assembly, the sleeve fixing frame 13 is firstly placed in the middle of the upper surface of the hydraulic lifting frame 12, the lower porcelain bushing, the core, the middle flange, the upper porcelain bushing and the oil collecting box 5 of the sleeve 1 are sequentially sleeved, and the height of the hydraulic lifting frame 12 is adjusted to be suitable for operation on the assembly platform 14.
The spring 4 is put into the oil collecting box 5, a pressure plate 22 and a locking nut 21 are sleeved, a pressing tool 20 is put on the pressure plate 22, the upper frame 16 is driven by an upper frame opening hydraulic cylinder 19 to close the upper frame 16, and the upper frame 16 and the upright frame 17 are fixed by an upper frame locking shaft 24.
Starting the pressing hydraulic cylinder 18 to enable the pressing hydraulic cylinder 18 to be abutted to the pressing tool 20, and after the pressing hydraulic cylinder 18 continues to work and compress the spring 4 after the pressing hydraulic cylinder is confirmed to be correct; and simultaneously measuring the compression amount of the spring, screwing a locking nut 21 after the compression requirement is met, withdrawing a compression hydraulic cylinder 18, taking down a compression tool 20, opening an upper frame locking shaft 24, lifting an upper frame 16 through an upper frame opening hydraulic cylinder 19, assembling the upper end cover of the sleeve, and then lifting out the product to finish the assembling process.
The assembly stations on the two sides of the assembly platform 14 can simultaneously carry out the same operation process, and the two assembly stations are adopted, so that the assembly efficiency of the sleeve is improved.
Claims (9)
1. The utility model provides a modular assembly devices of thimble which characterized in that: the device comprises a hydraulic lifting frame (12), a sleeve fixing frame (13), a portal frame (15), a pressing hydraulic cylinder (18) and an upper frame opening hydraulic cylinder (19), wherein the hydraulic lifting frame (12) is arranged in a pit (11), and the sleeve fixing frame (13) for fixing a sleeve (1) is arranged on the hydraulic lifting frame (12); a portal frame (15) is arranged on an assembly station, an upper frame (16) of the portal frame (15) is hinged on a vertical frame (17), one end of the portal frame is connected with an output end of an upper frame opening hydraulic cylinder (19) arranged on the vertical frame (17), the other end of the portal frame is a free end and is connected with the vertical frame (17) during sleeve assembly, and the upper frame (16) is driven by the upper frame opening hydraulic cylinder (19) to realize switching; and a pressing hydraulic cylinder (18) which is switched on and off along with the upper frame (16) is arranged on the upper frame (16), and the pressing hydraulic cylinder (18) compresses a spring (4) in the oil collecting box (5) through a pressing tool (20) when the sleeve (1) is assembled.
2. The modular ferrule assembly mechanism of claim 1, wherein: an assembly platform (14) is arranged in the middle of the opening of the pit (11), assembly stations are respectively arranged on the left side and the right side of the assembly platform (14), and the hydraulic lifting frame (12) is arranged in the pit (11) of each assembly station.
3. The modular ferrule assembly mechanism of claim 1, wherein: the front upright frame and the rear upright frame (17) of the portal frame (15) are respectively fixed on the opposite inner walls of the pit (11), the upper frame (16) is hinged to one upright frame (17), and the other end of the upper frame (16) is connected with the other upright frame (17) through an upper frame locking shaft (24).
4. A modular ferrule assembly mechanism according to claim 3, wherein: the upper frame (16) is driven to rotate at 0-90 degrees by an upper frame opening hydraulic cylinder (19).
5. The modular ferrule assembly mechanism of claim 1, wherein: the pressing hydraulic cylinder (18) is arranged in the middle of the upper frame (16).
6. The modular ferrule assembly mechanism of claim 1, wherein: the lifting height of the hydraulic lifting frame (12) is flush with the opening of the pit.
7. A method of assembling the cannula assembling mechanism of any one of claims 1 to 6, wherein: before assembly, firstly, a sleeve fixing frame (13) is arranged on a hydraulic lifting frame (12), a lower porcelain sleeve, a core, a middle flange, an upper porcelain sleeve and an oil collecting box of a sleeve (1) are sequentially sleeved, and the height of the hydraulic lifting frame (12) is adjusted to be suitable for operation on an assembly platform (14); the spring (4) is placed into the oil collecting box (5), a pressure plate (22) and a locking nut (21) are sleeved, a pressing tool (20) is placed on the pressure plate (22), an upper frame (16) is driven by an upper frame opening hydraulic cylinder (19) to close the upper frame (16), and the upper frame (16) and the vertical frame (17) are fixed well through an upper frame locking shaft (24); starting the pressing hydraulic cylinder (18) to enable the pressing hydraulic cylinder (18) to be abutted to the pressing tool (20); the pressing hydraulic cylinder (18) compresses the spring (4) until the compression requirement is met, the locking nut (21) is screwed, the pressing hydraulic cylinder (18) is retracted, the pressing tool (20) is taken down, the upper frame locking shaft (24) is opened, the upper frame (16) is lifted through the upper frame opening hydraulic cylinder (19), a product is lifted out after the upper end cover of the sleeve is assembled, and the assembling process is completed.
8. The assembly method of claim 7, wherein: the assembly stations on both sides of the assembly platform (14) can be operated simultaneously.
9. The assembly method of claim 7, wherein: the pressing hydraulic cylinder (18) compresses the spring (4), measures the spring compression amount of the spring (4), and screws the locking nut (21) after the set requirement is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466491.2A CN109093377B (en) | 2017-06-20 | 2017-06-20 | Combined assembling mechanism and assembling method for sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466491.2A CN109093377B (en) | 2017-06-20 | 2017-06-20 | Combined assembling mechanism and assembling method for sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109093377A CN109093377A (en) | 2018-12-28 |
| CN109093377B true CN109093377B (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710466491.2A Active CN109093377B (en) | 2017-06-20 | 2017-06-20 | Combined assembling mechanism and assembling method for sleeve |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05226884A (en) * | 1991-12-19 | 1993-09-03 | Sanyo Electric Co Ltd | Part mounting device |
| KR100791525B1 (en) * | 2007-01-27 | 2008-01-03 | (주) 대세 | The assembly apparatus for mechanical seal spring |
| CN202079382U (en) * | 2010-11-26 | 2011-12-21 | 天津天德减震器有限公司 | Piston rod sub assembly snap ring pressing device |
| CN204035927U (en) * | 2014-06-27 | 2014-12-24 | 贵州毕节汇丰汽车零部件制造有限公司 | Front slotting nameplate press-fitting mould |
| CN105834719A (en) * | 2016-05-27 | 2016-08-10 | 苏州凯磊胜自动化科技有限公司 | Device and method for assembling sealing ring in pen clip of gel pen |
| CN205629886U (en) * | 2016-05-25 | 2016-10-12 | 苏州博众精工科技有限公司 | Lever compression fittings |
-
2017
- 2017-06-20 CN CN201710466491.2A patent/CN109093377B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05226884A (en) * | 1991-12-19 | 1993-09-03 | Sanyo Electric Co Ltd | Part mounting device |
| KR100791525B1 (en) * | 2007-01-27 | 2008-01-03 | (주) 대세 | The assembly apparatus for mechanical seal spring |
| CN202079382U (en) * | 2010-11-26 | 2011-12-21 | 天津天德减震器有限公司 | Piston rod sub assembly snap ring pressing device |
| CN204035927U (en) * | 2014-06-27 | 2014-12-24 | 贵州毕节汇丰汽车零部件制造有限公司 | Front slotting nameplate press-fitting mould |
| CN205629886U (en) * | 2016-05-25 | 2016-10-12 | 苏州博众精工科技有限公司 | Lever compression fittings |
| CN105834719A (en) * | 2016-05-27 | 2016-08-10 | 苏州凯磊胜自动化科技有限公司 | Device and method for assembling sealing ring in pen clip of gel pen |
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| Publication number | Publication date |
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| CN109093377A (en) | 2018-12-28 |
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