CN104889438A - Self-locking type expansion sleeve structure - Google Patents
Self-locking type expansion sleeve structure Download PDFInfo
- Publication number
- CN104889438A CN104889438A CN201510286432.8A CN201510286432A CN104889438A CN 104889438 A CN104889438 A CN 104889438A CN 201510286432 A CN201510286432 A CN 201510286432A CN 104889438 A CN104889438 A CN 104889438A
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- CN
- China
- Prior art keywords
- cylinder
- expansion set
- thread
- endoporus
- projection
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- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/42—Expansion mandrels characterised by features relating primarily to remote control of the gripping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a self-locking type expansion sleeve structure, which is characterized in that a front end of a base plate is provided with a conical rod; a pull rod sequentially penetrates through inner holes of an expansion sleeve and the conical rod; a second inner hole is provided with a circular conical surface and a clamp groove; the circular conical surface of the second inner hole is cooperated with that of the conical rod; a front end of the pull rod is provided with a projection; the projection is cooperated with the clamp groove; a back end of the pull rod is provided with a thread; front and back ends of a connection block are provided with threads; the thread of the pull rod is connected to the thread at the front end of the connection block in a cooperated way; the thread at the back end of the connection block is connected to a connection thread at a front end of an air cylinder piston rod in a cooperated way; a thread at a back end of a connection bolt is connected to a threaded hole at a front end of an air cylinder connection bolt in a cooperated way; the expansion sleeve structure and an air cylinder are fixed and connected as a whole; a spring penetrates between a front end plate of the air cylinder and an air cylinder piston; the external diameter of the expansion sleeve is pressed on an inner wall of an inner hole of a workpiece, thus the workpiece is positioned and clamped; the expansion sleeve is connected to other fixed mechanisms through a through hole on the base plate, thus the positioning and clamping functions to the workpiece are maintained; and the workpiece is prevented from loosing due to a failure of the air cylinder.
Description
Technical field
The present invention relates to plant equipment manufacture assembling field, particularly a kind of self-locking expansion set
mounting structure.
Background technology
Manufacture in assembling process in plant equipment, because the structure of workpiece is different with shape, often need the location of endoporus for workpiece adopting workpiece, holes for clamping, particularly need the locating clip tieholen from top, expansion set being inserted workpiece, position clamping, and need workpiece lift move to another place time, the clamping and positioning expansion set of current use, expansion set clamping and positioning function is realized by cylinder or oil cylinder effect, but when cylinder or oil tank lost efficacy, event resolves, clamping and positioning lost efficacy, if need to avoid clamping and positioning power to lose efficacy, need to install pressurizer additional in gas circuit or oil circuit, clamping and positioning function required for maintenance.
Summary of the invention
The object of the invention is to overcome defect in above-mentioned prior art, a kind of self-locking expansion set mounting structure is provided, make part when ensureing that part lost efficacy at clamping and positioning cylinder (oil cylinder), clamping and positioning expansion set keeps certain active force, keep the clamping and positioning active force continued, ensure that the reliable grip location of workpiece.
Technical solution of the present invention is such, and a kind of self-locking expansion set, comprises cylinder, base plate, accounts, pull bar, contiguous block, spacer, connecting bolt, cone bar, external diameter, connecting plate, first internal thread, through hole, bolt and contiguous block joint, piston rod, spring, first connecting bolt, step, cylinder piston, groove, second internal thread, 3rd internal thread, 4th internal thread, draw-in groove, conical bore, cushion block, projection, first endoporus, counterbore, through hole, the conical surface, second endoporus, cylinder front end-plate, connecting thread, screw thread, circular cone, groove, front end face, baseplane, it is characterized in that pull bar (4) rear end has screw thread (34) to be connected with the 3rd internal thread (21) of contiguous block (5), piston rod (14) front end has screw thread to be connected with second internal thread (20) of contiguous block (5), pull bar (4) cover loads second endoporus (31) of cone bar (8), there is projection (26) pull bar (4) front end, be connected with connecting bolt (7) between base plate (2) with spacer (6), spacer (6) is arranged on cylinder front end-plate (32), spring (15) is arranged on piston rod (14) external diameter, piston rod (14) and spring (15) are arranged in cylinder (1) inner chamber, cushion block (25) is had between piston rod (14) and connecting plate (10), connect with the first connecting bolt (16) and tighten up, there is draw-in groove (23) the endoporus front end of accounts (3), baseplane (38), projection (26) snaps in draw-in groove (23), and base plate (2) front end is provided with cone bar (8), and accounts (3) have the second endoporus (31), and accounts (3) are provided with conical bore (24), conical bore (24) and the cone match of boring bar (8).
Pull bar (4) front end is provided with projection (26), and accounts (3) end face has front end face (37), and the second endoporus (31) front end is provided with draw-in groove (23), and projection (26) coordinates with draw-in groove (23).
Cylinder (1) inner chamber between cylinder front end-plate (32) and cylinder piston (18) is provided with spring (15).
Compared with prior art, the present invention has following beneficial effect: the conical surface of pull bar front end face coordinates with the taper seat of expansion set endoporus, and pull bar front end is provided with projection, and expansion set endoporus front end is provided with draw-in groove, projection coordinates with draw-in groove, and projection can drive expansion set to move left and right by draw-in groove.Be equipped with spring between cylinder front end-plate and cylinder piston, when cylinder does not work under the action of the spring, pull bar keeps active force backward, pulls expansion set to keep active force backward, and expansion set produces the radial tensile force of self-locking.Simply rational in infrastructure, certain acting force of the spring can be kept when cylinder (oil cylinder) loses efficacy, keep the location clamping function to workpiece, and prevent workpiece from getting loose when cylinder deactivation.
Accompanying drawing explanation
Fig. 1 is that the overall structure of a kind of self-locking of the present invention expansion set structure assembles main apparent direction cross-sectional schematic.
Fig. 2 is the main apparent direction cross-sectional schematic of base plate of a kind of self-locking of the present invention expansion set structure.
Fig. 3 is the base plate schematic top plan view of a kind of self-locking expansion set of the present invention structure.
Fig. 4 is the main apparent direction cross-sectional schematic of pull bar of a kind of self-locking of the present invention expansion set structure.
Fig. 5 is the left apparent direction schematic diagram of pull bar of a kind of self-locking of the present invention expansion set structure.
Fig. 6 is the sectional structure schematic diagram of the main apparent direction of the expansion set of a kind of self-locking of the present invention expansion set mounting structure.
Fig. 7 is the structural representation of the left apparent direction of expansion set of a kind of self-locking of the present invention expansion set structure.
Fig. 8 is the sectional structure schematic diagram that the expansion set of a kind of self-locking expansion set of the present invention structure looks up direction.
Fig. 9 is the sectional structure schematic diagram that the expansion set of a kind of self-locking expansion set of the present invention structure overlooks direction.
Figure 10 is the sectional structure schematic diagram of the main apparent direction of contiguous block of a kind of self-locking of the present invention expansion set structure.
Figure 11 is the structural representation that the contiguous block of a kind of self-locking expansion set of the present invention structure overlooks direction.
Figure 12 is the sectional structure schematic diagram of the main apparent direction of connecting bolt of a kind of self-locking of the present invention expansion set structure.
Figure 13 is the sectional structure schematic diagram of the main apparent direction of adapter sleeve of a kind of self-locking of the present invention expansion set structure.
Figure 14 is the structural representation of the left apparent direction of adapter sleeve of a kind of self-locking of the present invention expansion set structure.
Figure 15 is the sectional structure schematic diagram of the main apparent direction of connecting plate of a kind of self-locking of the present invention expansion set structure.
Figure 16 is the sectional structure schematic diagram that the connecting plate of a kind of self-locking expansion set of the present invention structure overlooks direction.
Reference numeral: cylinder (1), base plate (2), accounts (3), pull bar (4), contiguous block (5), spacer (6), connecting bolt (7), cone bar (8), external diameter (9), connecting plate (10), first internal thread (11), through hole (12), bolt and contiguous block joint (13), piston rod (14), spring (15), first connecting bolt (16), step (17), cylinder piston (18), groove (19), second internal thread (20), 3rd internal thread (21), 4th internal thread (22), draw-in groove (23), conical bore (24), cushion block (25), projection (26), first endoporus (27), counterbore (28), through hole (29), the conical surface (30), second endoporus (31), cylinder front end-plate (32), connecting thread (33), screw thread (34), circular cone (35), groove (36), front end face (37), baseplane (38).
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
Embodiment 1, this self-locking expansion set method utilizes the taper seat of expansion set to coordinate with the taper seat of the cone bar of base plate, under the push-and-pull action of cylinder (oil cylinder), pull bar drives expansion set to move forward and backward, axially relative displacement is being produced with the position of cone bar, expansion set radial direction produces elastic deformation, expansion set external diameter overlays at inner hole of workpiece inwall, thus realize location, the clamping function of workpiece, spring is provided with between contiguous block and base plate, when cylinder deactivation is inoperative under the action of the spring, pull bar keeps active force backward.Base plate front end is provided with cone bar, pull bar is located in the endoporus of expansion set and cone bar successively, expansion set endoporus is provided with taper seat, draw-in groove, taper seat coordinates with the taper seat of cone bar, pull bar front end is provided with projection, projection coordinates with draw-in groove, when pull bar slides to left end, drive expansion set moves forward, expansion set recovers original state under natural resiliency metamorphosis, back end of tie rod is provided with screw thread, before contiguous block, rear end is provided with screw thread, screw thread and the contiguous block nose threads of pull bar are connected, the screw thread of contiguous block rear end and the connecting thread of cylinder piston rod front end are connected, base plate divides and is separately provided with 4 counterbores, 4 through holes, 4 spacers are provided with between base plate and cylinder front end-plate, connecting bolt is located in counterbore successively, in the endoporus of spacer, the screw thread of connecting bolt rear end and the screwed hole of cylinder connecting bolt front end are connected, whole expansion set structure and cylinder (oil cylinder) are fixedly connected as an overall structure, spring is equipped with between cylinder front end-plate and cylinder piston, when cylinder (oil cylinder) inefficacy does not act under the action of the spring, pull bar keeps active force backward, expansion set is pulled to keep active force backward, expansion set produces the radial tensile force of self-locking.Pull bar is at cylinder piston rod, slide left under the promotion of contiguous block, projection drives expansion set to be moved to the left, expansion set recovers original state under natural resiliency metamorphosis, in this case, expanding sleeve device is inserted in required location, in the endoporus of the workpiece of clamping, pull bar is at cylinder piston rod, slide to the right under the pulling of contiguous block, projection drives expansion set to move right, expansion set and cone bar generation relative displacement, expansion set produces radial deformation under the effect of the conical surface, expansion set external diameter overlays at inner hole of workpiece inwall, thus location, clamping work pieces, whole expansion set structure is connected with other fixed mechanism by the through hole of 4 on base plate.This expansion set is simply rational in infrastructure, can keep certain acting force of the spring when cylinder deactivation, keeps the location clamping function to workpiece, prevents workpiece from getting loose when cylinder deactivation.
Embodiment 2, base plate (2) front end is provided with cone bar (8), cone bar (8) is provided with the second endoporus (31), pull bar (4) is located in second endoporus (31) of expansion set (3) and cone bar (8) successively, the cylindrical of pull bar (4) is slidably matched with second endoporus (31) of cone bar (8), the endoporus of expansion set (3) is provided with front end face (37) successively, draw-in groove (23), conical bore (24), conical bore (24) coordinates with the taper seat (30) of cone bar (8), pull bar (4) front end is provided with circular cone (35) successively, projection (26), circular cone (35), groove (36) is provided with between projection (26), projection (26) coordinates with draw-in groove (23), when pull bar (4) slides to left end, expansion set (3) is driven to move forward, expansion set (3) recovers original state under natural resiliency metamorphosis, pull bar (4) rear end is provided with screw thread (34), before contiguous block (5) endoporus, rear end is provided with the 3rd screw thread (21), second screw thread (20), the screw thread (34) of pull bar and the 3rd screw thread (21) of contiguous block front end are connected, second screw thread (20) of contiguous block rear end and the connecting thread (33) of cylinder piston rod front end are connected, base plate (2) is arranged with 4 counterbores (28) respectively, 4 through holes (29), 4 spacers (6) are provided with between base plate (2) and cylinder front end-plate, connecting bolt (7) is located in counterbore (28) successively, in first endoporus (27) of spacer (6), the connecting thread (33) of connecting bolt (7) rear end and the 4th internal thread (22) of the first connecting bolt (16) are fixedly connected, as a whole structure is connected with cylinder whole for expansion set structure, spring (15) is equipped with between cylinder front end-plate (32) and cylinder piston (18), when cylinder (oil cylinder) inefficacy does not act under the effect of spring (15), expansion set (3) is pulled to keep active force to the right, the external diameter (9) of expansion set (3) keeps being close to inner hole of workpiece inwall, thus keep location, clamping work pieces.
During locating clip clamping of workpieces, first cylinder (1) rear end inflation, under the influence of air pressure, cylinder piston (18) promotes cylinder piston rod (14) and is moved to the left, contiguous block (5) is driven to be moved to the left at cylinder piston rod (14), contiguous block (5) pushing drawing rod (4) slides left, projection (26) drives expansion set (3) to be moved to the left by draw-in groove (23), relative displacement is there is in expansion set (3) with cone bar (8), expansion set (3) recovers original state under natural resiliency metamorphosis, in this case, expanding sleeve device is inserted in required location under the effect of part device, in the endoporus of the workpiece of clamping, during the clamping of location, pull bar (4) is in cylinder piston rod (14), slide to the right under the pulling of contiguous block (5), baseplane (38) is pressed in the front end face (37) of expansion set (3), expansion set (3) is driven to move right, relative displacement is there is in expansion set (3) with cone bar (8), expansion set (3) produces radial deformation under the effect of the conical surface (30), overlay at inner hole of workpiece inwall after external diameter (9) radial deformation of expansion set (3), thus location, clamping work pieces.Base plate (2) front end face, near the fixed connecting plate of expansion set, is fixedly connected with by 4 counterbores (28) are relative with the fixed connecting plate of expansion set (3), thus uses expansion set (3) to be mounted on clamping device, realizes clamping the location of workpiece.
When unclamping the location clamping to workpiece, cylinder (oil cylinder) left end inflation (oil), under the influence of air pressure, cylinder piston promotes cylinder piston rod and is moved to the left, contiguous block (5) is driven to be moved to the left at cylinder piston rod, contiguous block (5) pushing drawing rod (4) slides left, projection (26) drives expansion set (3) to be moved to the left by draw-in groove (23), relative displacement is there is in expansion set (3) with cone bar (8), expansion set (3) recovers original state under natural resiliency metamorphosis, unclamps and clamps the location of workpiece.
This expansion set is simply rational in infrastructure, can keep certain acting force of the spring when cylinder deactivation, keeps the location clamping function to workpiece, prevents workpiece from getting loose when cylinder deactivation.
Be only specific embodiments of the invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (3)
1. a self-locking expansion set
structure, comprise cylinder, base plate, accounts, pull bar, contiguous block, spacer, connecting bolt, cone bar, external diameter, connecting plate, first internal thread, through hole, bolt and contiguous block joint, piston rod, spring, first connecting bolt, step, cylinder piston, groove, second internal thread, 3rd internal thread, 4th internal thread, draw-in groove, conical bore, cushion block, projection, first endoporus, counterbore, through hole, the conical surface, second endoporus, cylinder front end-plate, connecting thread, screw thread, circular cone, groove, front end face, baseplane, it is characterized in that pull bar (4) rear end has screw thread (34) to be connected with the 3rd internal thread (21) of contiguous block (5), piston rod (14) front end has screw thread to be connected with second internal thread (20) of contiguous block (5), pull bar (4) cover loads second endoporus (31) of cone bar (8), there is projection (26) pull bar (4) front end, be connected with connecting bolt (7) between base plate (2) with spacer (6), spacer (6) is arranged on cylinder front end-plate (32), spring (15) is arranged on piston rod (14) external diameter, piston rod (14) and spring (15) are arranged in cylinder (1) inner chamber, cushion block (25) is had between piston rod (14) and connecting plate (10), connect with the first connecting bolt (16) and tighten up, there is draw-in groove (23) the endoporus front end of accounts (3), baseplane (38), projection (26) snaps in draw-in groove (23), and base plate (2) front end is provided with cone bar (8), and accounts (3) have the second endoporus (31), and accounts (3) are provided with conical bore (24), conical bore (24) and the cone match of boring bar (8).
2. a kind of self-locking expansion set according to claim 1
structure, it is characterized in that pull bar (4) front end is provided with projection (26), accounts (3) end face has front end face (37), and the second endoporus (31) front end is provided with draw-in groove (23), and projection (26) coordinates with draw-in groove (23).
3. a kind of self-locking expansion set according to claim 1
structure, it is characterized in that cylinder (1) inner chamber between cylinder front end-plate (32) and cylinder piston (18) is provided with spring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510286432.8A CN104889438A (en) | 2015-05-30 | 2015-05-30 | Self-locking type expansion sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510286432.8A CN104889438A (en) | 2015-05-30 | 2015-05-30 | Self-locking type expansion sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104889438A true CN104889438A (en) | 2015-09-09 |
Family
ID=54022627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510286432.8A Pending CN104889438A (en) | 2015-05-30 | 2015-05-30 | Self-locking type expansion sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104889438A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555856A (en) * | 2019-01-15 | 2019-04-02 | 苏州天准科技股份有限公司 | A kind of aperture sealing device |
| CN112548232A (en) * | 2020-11-30 | 2021-03-26 | 重庆机床(集团)有限责任公司 | Positioning fixture for reference circle of cylindrical inner gear ring |
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| EP1541265A2 (en) * | 2003-12-09 | 2005-06-15 | Bilz Werkzeugfabrik GmbH & Co. KG | Tool holder for the shrink-fitting of rotary tools with predominantly cylindrical shafts |
| CN202240634U (en) * | 2011-09-16 | 2012-05-30 | 中山市蒂桦机械制造有限公司 | A new type of automatic tool loading and unloading device |
| CN102554301A (en) * | 2012-02-12 | 2012-07-11 | 唐维刚 | Machine tool fixture for machining sleeve parts |
| CN203556903U (en) * | 2013-11-05 | 2014-04-23 | 陕西法士特齿轮有限责任公司 | Clamp for digital controlled lathe |
| CN203830762U (en) * | 2014-04-28 | 2014-09-17 | 泸州沱江液压件有限公司 | Hydraulic clamp used for processing of cylinder liner |
| CN203887255U (en) * | 2014-06-13 | 2014-10-22 | 南充同俊机械制造有限公司 | Elastic chuck type lathe fixture |
| CN204234774U (en) * | 2014-10-11 | 2015-04-01 | 蒋飞雪 | Bivalve body self-centering sleeve vehicle clamper |
| CN204673000U (en) * | 2015-05-30 | 2015-09-30 | 广西玉柴机器股份有限公司 | A kind of self-locking expansion set |
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2015
- 2015-05-30 CN CN201510286432.8A patent/CN104889438A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1541265A2 (en) * | 2003-12-09 | 2005-06-15 | Bilz Werkzeugfabrik GmbH & Co. KG | Tool holder for the shrink-fitting of rotary tools with predominantly cylindrical shafts |
| CN202240634U (en) * | 2011-09-16 | 2012-05-30 | 中山市蒂桦机械制造有限公司 | A new type of automatic tool loading and unloading device |
| CN102554301A (en) * | 2012-02-12 | 2012-07-11 | 唐维刚 | Machine tool fixture for machining sleeve parts |
| CN203556903U (en) * | 2013-11-05 | 2014-04-23 | 陕西法士特齿轮有限责任公司 | Clamp for digital controlled lathe |
| CN203830762U (en) * | 2014-04-28 | 2014-09-17 | 泸州沱江液压件有限公司 | Hydraulic clamp used for processing of cylinder liner |
| CN203887255U (en) * | 2014-06-13 | 2014-10-22 | 南充同俊机械制造有限公司 | Elastic chuck type lathe fixture |
| CN204234774U (en) * | 2014-10-11 | 2015-04-01 | 蒋飞雪 | Bivalve body self-centering sleeve vehicle clamper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555856A (en) * | 2019-01-15 | 2019-04-02 | 苏州天准科技股份有限公司 | A kind of aperture sealing device |
| CN109555856B (en) * | 2019-01-15 | 2023-08-18 | 苏州天准科技股份有限公司 | Small hole sealing device |
| CN112548232A (en) * | 2020-11-30 | 2021-03-26 | 重庆机床(集团)有限责任公司 | Positioning fixture for reference circle of cylindrical inner gear ring |
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Application publication date: 20150909 |
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