CN110193721B - Blind hole workpiece dismounting device - Google Patents
Blind hole workpiece dismounting device Download PDFInfo
- Publication number
- CN110193721B CN110193721B CN201910557673.XA CN201910557673A CN110193721B CN 110193721 B CN110193721 B CN 110193721B CN 201910557673 A CN201910557673 A CN 201910557673A CN 110193721 B CN110193721 B CN 110193721B
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- China
- Prior art keywords
- blind hole
- workpiece
- press
- dowel bar
- rod head
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Forging (AREA)
Abstract
The invention relates to a blind hole workpiece dismounting device, and belongs to the field of machining. The technical scheme adopted by the invention is as follows: the blind hole workpiece dismounting device comprises a dowel bar, wherein the top of the dowel bar is a press mounting top disc, the bottom of the dowel bar is provided with a self-centering conversion chuck, a press bar head or a pull bar head is arranged on the self-centering conversion chuck, and the press bar head extrudes a shaft workpiece in a blind hole on a workpiece or is pulled up after being fixed with a broken piece in the blind hole. The invention can ensure that the blind hole workpiece is more accurately installed, the blind hole workpiece is more convenient and rapid to detach, the disassembly is not damaged, and the labor intensity of workers can be greatly reduced.
Description
Technical Field
The invention relates to a blind hole workpiece dismounting device, and belongs to the field of machining.
Background
In the machining process, blind hole workpiece machining is common machining, and a common method is to impact a shaft piece by a hand hammer, so that the shaft piece can slowly move downwards under the action of impact force until the shaft piece is in place. The blind hole workpiece is more difficult to disassemble, an easily-disassembled workpiece is welded on the broken workpiece by an electric welding machine, and the combined workpiece is disassembled by a tool. Some blind hole workpieces have smaller diameters, the broken parts are not exposed out of the blind holes, the broken parts cannot be taken out, and the workpieces can only be used for reporting fees.
At present, the hand hammer for blind hole installation is laborious and can easily smash the shaft or the bearing, waste working hours, delay the construction period and compensate the workpiece. The electric welding operation for disassembling the blind hole piece can only marginally process a part of the workpiece with the blind hole exposed, but the electric welding operation for the broken piece without exposing the blind hole cannot be performed. Especially for removing and installing large diameter workpieces, the labor intensity of workers is too great.
Disclosure of Invention
The invention provides a blind hole workpiece dismounting device which solves the problems of blind hole dismounting broken pieces and blind hole mounting shaft workpieces.
In order to achieve the purpose of the commercial tenant, the invention adopts the following technical scheme:
the blind hole workpiece dismounting device comprises a dowel bar, wherein the top of the dowel bar is a press mounting top disc, the bottom of the dowel bar is provided with a self-centering conversion chuck, a press bar head or a pull bar head is arranged on the self-centering conversion chuck, and the press bar head extrudes a shaft workpiece in a blind hole on a workpiece or is pulled up after being fixed with a broken piece in the blind hole.
Preferably, the device further comprises a base, wherein two upright posts are arranged on the base, a cross beam is arranged on the two upright posts, a hydraulic cylinder is arranged on the cross beam, a piston of the hydraulic cylinder contacts with a press-fit top disc to press down the dowel bar, a workpiece provided with a blind hole is arranged on the base, and the press bar head extrudes the shaft workpiece in the blind hole on the workpiece.
Preferably, the impact hammer is sleeved on the dowel bar, the broken piece in the blind hole is provided with a screw hole, the end part of the pull rod head is matched and fixed with the screw hole on the broken piece, and the pull rod head is pulled up after fixing the broken piece in the blind hole.
Preferably, the device further comprises a shaft piece positioning seat, the lower end of the pull rod head penetrates through the shaft piece positioning seat, the shaft piece positioning seat is arranged at the position of the blind hole of the workpiece, and the pull rod head penetrating hole of the shaft piece positioning seat is concentric with the broken piece in the blind hole.
Preferably, the hydraulic cylinder is characterized by further comprising a pulling-pressing conversion connector, wherein the upper side surface and the lower side surface of the pulling-pressing conversion connector are respectively provided with a T-shaped groove, and the top press-mounting top disc of the dowel bar and the piston end part of the hydraulic cylinder are embedded into the T-shaped grooves.
The invention can ensure that the blind hole workpiece is more accurately installed, the blind hole workpiece is more convenient and rapid to detach, the disassembly is not damaged, and the labor intensity of workers can be greatly reduced.
Drawings
Figure 1 is a block diagram of a first embodiment of the invention,
figure 2 is a block diagram of a second embodiment of the invention,
fig. 3 is a structural diagram of a third embodiment of the present invention.
Reference numerals:
the top plate 3 is pressed and assembled by the dowel steel 2, the self-centering conversion chuck 4 is used for pressing the rod head 5, the rod head 6, the workpiece 7, the base 8, the upright post 9, the cross beam 10, the hydraulic cylinder 11, the impact hammer 12 and the shaft positioning seat 13 are used for pulling and pressing the conversion joint.
Detailed Description
Example 1
The main structure includes base 7 and dowel bar 1, and self-centering conversion chuck 3 is set up to dowel bar 1's bottom, installs pressure pole head 4 on the self-centering conversion chuck 3, and dowel bar 1's top is pressure equipment roof plate 2. The press rod head 4 presses the shaft workpiece in the blind hole on the workpiece 6.
The upper side surface of the base 7 is a horizontal plane, two upright posts 8 are fixed on the base, and the two upright posts 8 are vertical and parallel to each other. The upper parts of the two upright posts 8 are provided with fixed cross beams which are horizontally arranged. The middle part of the beam 9 is provided with a hydraulic cylinder 10, and the piston of the hydraulic cylinder 10 faces downwards.
The piston of the hydraulic cylinder 10 contacts with the press-fit top disc 2 to press down the dowel bar 1, the workpiece 6 with the blind hole is placed on the base 7, the press bar head 4 presses the shaft workpiece in the blind hole on the workpiece 6, and the shaft workpiece 6 is pressed into the blind hole on the workpiece 6.
This embodiment is to implement the installation step.
Example 2
The main structure includes dowel bar 1, dowel bar 1 is gone up to overlap and is established jump bit 11, and dowel bar 1's top is pressure equipment roof plate 2, and self-centering conversion chuck 3 is set up to dowel bar 1's bottom, installs pull rod head 5 on the self-centering conversion chuck 3.
The pull rod head 5 is sleeved with a shaft positioning seat 12, specifically, the lower end of the pull rod head 5 penetrates through the shaft positioning seat 12, the shaft positioning seat 12 is arranged at the position of a blind hole of the workpiece 6, and a through hole of the pull rod head 5 of the shaft positioning seat 12 is concentric with a broken piece in the blind hole.
The pull rod head is connected with the broken piece in the blind hole in a threaded mode, specifically, a screw hole is formed in the center of the broken piece in the blind hole, the end part of the pull rod head 5 is matched and fixed with the screw hole on the broken piece, and the pull rod head 5 is pulled up after fixing the broken piece in the blind hole.
The hand-held impact hammer impacts the press-mounting top disc 2 upwards, the press-mounting top disc 2 transmits upward impact force to the dowel bar, the dowel bar transmits upward impact force to the pull rod head, and the pull rod head drives the blind hole inner broken piece fixedly connected to pull up, so that the purpose of disassembling the blind hole inner broken piece is achieved.
The embodiment is suitable for disassembling the broken piece in the pin blind hole.
In the case of example 3,
the main structure includes dowel bar 1 and base 7, and the top of dowel bar 1 is pressure equipment roof plate 2, and self-centering conversion chuck 3 is set up to the bottom of dowel bar 1, installs pull rod head 5 on the self-centering conversion chuck 3.
The upper side surface of the base 7 is a horizontal plane, two upright posts 8 are fixed on the base, and the two upright posts 8 are vertical and parallel to each other. The upper parts of the two upright posts 8 are provided with fixed cross beams which are horizontally arranged. The middle part of the beam 9 is provided with a hydraulic cylinder 10, and the piston of the hydraulic cylinder 10 faces downwards.
The pull-press conversion connector 13 is provided with T-shaped grooves on the upper and lower sides of the pull-press conversion connector 13, and the top press-mounting top plate 2 of the dowel bar 1 and the piston end of the hydraulic cylinder 10 are embedded into the T-shaped grooves.
The pull rod head 5 is sleeved with a shaft positioning seat 12, specifically, the lower end of the pull rod head 5 penetrates through the shaft positioning seat 12, the shaft positioning seat 12 is arranged at the position of a blind hole of the workpiece 6, and a through hole of the pull rod head 5 of the shaft positioning seat 12 is concentric with a broken piece in the blind hole.
The pull rod head is connected with the broken piece in the blind hole in a threaded mode, specifically, a screw hole is formed in the center of the broken piece in the blind hole, the end part of the pull rod head 5 is matched and fixed with the screw hole on the broken piece, and the pull rod head 5 is pulled up after fixing the broken piece in the blind hole.
And starting the hydraulic cylinder, driving the dowel bar to pull up by the piston, driving the broken piece in the blind hole to pull up by the head of the dowel bar at the end part of the dowel bar, and removing the blind hole to realize the disassembly of the broken piece in the blind hole.
The embodiment can realize the disassembly operation of the broken piece in the blind hole with large diameter.
The embodiment can reduce labor intensity and improve labor productivity through the operation of a hydraulic system. When the broken piece is detached, a heavy electric welding machine is not used. The disassembly or the installation is successful once, and the risk and the economic loss caused by operation failure are avoided. The device can disassemble small-diameter blind hole broken pieces which cannot be disassembled by other methods. The disassembly and press fitting conversion are quick, and the machine can be used for multiple purposes only by replacing a pulling and pressing conversion joint. The large-diameter workpiece is disassembled quickly and labor-saving, and the working efficiency is improved.
Claims (1)
1. The blind hole workpiece dismounting device is characterized by comprising a dowel bar (1), wherein the top of the dowel bar (1) is provided with a press-fit top disc (2), the bottom of the dowel bar (1) is provided with a self-centering conversion chuck (3), a press rod head (4) or a pull rod head (5) is arranged on the self-centering conversion chuck (3), and the press rod head (4) extrudes an inner shaft type workpiece (6) in a blind hole on a workpiece (6) or the pull rod head (5) is fixed with a broken piece in the blind hole and then pulls up;
the device also comprises a base (7), wherein two vertical columns (8) are arranged on the base (7), a cross beam (9) is arranged on the two vertical columns (8), a hydraulic cylinder (10) is arranged on the cross beam (9), a piston of the hydraulic cylinder (10) contacts with a press-fit top disc (2) to press down the dowel bar (1), a workpiece (6) with a blind hole is arranged on the base (7), and the press head (4) presses the shaft workpiece (6) in the blind hole on the workpiece (6);
the impact hammer (11) is sleeved on the dowel bar (1), a screw hole is formed in the broken piece in the blind hole, the end part of the draw bar head (5) is matched and fixed with the screw hole on the broken piece, and the draw bar head (5) is pulled up after fixing the broken piece in the blind hole;
the device also comprises a shaft piece positioning seat (12), the lower end of the pull rod head (5) passes through the shaft piece positioning seat (12), the shaft piece positioning seat (12) is arranged at the blind hole position of the workpiece (6), and the through hole of the pull rod head (5) of the shaft piece positioning seat (12) is concentric with the broken piece in the blind hole;
the hydraulic pressure device is characterized by further comprising a pulling-pressing conversion connector (13), wherein T-shaped grooves are respectively formed in the upper side face and the lower side face of the pulling-pressing conversion connector (13), and the top pressing top disc (2) of the dowel bar (1) and the piston end portion of the hydraulic cylinder (10) are embedded into the T-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910557673.XA CN110193721B (en) | 2019-06-26 | 2019-06-26 | Blind hole workpiece dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910557673.XA CN110193721B (en) | 2019-06-26 | 2019-06-26 | Blind hole workpiece dismounting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110193721A CN110193721A (en) | 2019-09-03 |
| CN110193721B true CN110193721B (en) | 2024-03-29 |
Family
ID=67755205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910557673.XA Active CN110193721B (en) | 2019-06-26 | 2019-06-26 | Blind hole workpiece dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110193721B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535982A (en) * | 2022-04-02 | 2022-05-27 | 中国航发沈阳发动机研究所 | Aeroengine doublestage high whirlpool stator unit body assembly fixture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984726Y (en) * | 2006-12-31 | 2007-12-05 | 南京金城机械有限公司 | Blind hole bush withdrawing device |
| CN103029099A (en) * | 2013-01-15 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司川西钻探公司 | Quick dismounting tool for cylinder sleeve of internal combustion engine and realization method thereof |
| CN104874992A (en) * | 2015-03-25 | 2015-09-02 | 东风汽车公司 | Automotive rear bridge torsion beam hinged lining assembling and disassembling tool |
| CN207087280U (en) * | 2017-07-31 | 2018-03-13 | 上海仁朋实业有限公司 | A kind of graphite boat fixture disassemblerassembler |
| CN210147415U (en) * | 2019-06-26 | 2020-03-17 | 山东公信安全科技有限公司 | Blind hole workpiece dismounting device |
-
2019
- 2019-06-26 CN CN201910557673.XA patent/CN110193721B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984726Y (en) * | 2006-12-31 | 2007-12-05 | 南京金城机械有限公司 | Blind hole bush withdrawing device |
| CN103029099A (en) * | 2013-01-15 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司川西钻探公司 | Quick dismounting tool for cylinder sleeve of internal combustion engine and realization method thereof |
| CN104874992A (en) * | 2015-03-25 | 2015-09-02 | 东风汽车公司 | Automotive rear bridge torsion beam hinged lining assembling and disassembling tool |
| CN207087280U (en) * | 2017-07-31 | 2018-03-13 | 上海仁朋实业有限公司 | A kind of graphite boat fixture disassemblerassembler |
| CN210147415U (en) * | 2019-06-26 | 2020-03-17 | 山东公信安全科技有限公司 | Blind hole workpiece dismounting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110193721A (en) | 2019-09-03 |
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Country or region after: China Address after: 1 Qingquan West Road, Shizhong District, Zaozhuang City, Shandong Province 277100 Applicant after: China Inspection Group Gongxin Security Technology Co.,Ltd. Address before: 1 Qingquan West Road, Shizhong District, Zaozhuang City, Shandong Province 277100 Applicant before: SHANDONG GONGXIN SECURITY TECHNOLOGY Co.,Ltd. Country or region before: China |
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