CN109623428A - The adaptive hold-down mechanism of hinge type three-jaw - Google Patents
The adaptive hold-down mechanism of hinge type three-jaw Download PDFInfo
- Publication number
- CN109623428A CN109623428A CN201910106002.1A CN201910106002A CN109623428A CN 109623428 A CN109623428 A CN 109623428A CN 201910106002 A CN201910106002 A CN 201910106002A CN 109623428 A CN109623428 A CN 109623428A
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- pull rod
- down mechanism
- jaw
- attachment base
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention belongs to clamp arts, are related to a kind of adaptive hold-down mechanism of hinge type three-jaw, the fulcrum bearing including one with axially extending bore；Attachment base, is fixed on the upper end of the fulcrum bearing, and attachment base upper end is evenly distributed with three rotatable pressing plates；Pull rod, it is removable to be actively tied in the axially extending bore of fulcrum bearing, and pull rod upper end is upwardly extended across the centre bore of attachment base, pull rod top is connected with three pressing plates, and when realizing that pull rod stretches, pressing plate is rotated relative to attachment base；Tapered sleeve, axial limiting are fixed on the top of the pull rod, and fitting setting central elastic lasso, central elastic lasso are sheathed on the cylinder table of pull rod upper end formation in tapered sleeve inner hole；The tail end of the pressing plate is equipped with boss, and at work, boss is matched with the circular conical surface that tapered sleeve is arranged upward.The hold-down mechanism can reliably compress aperture blank step surface.
Description
Technical field
The invention belongs to clamp arts, are related to a kind of adaptive hold-down mechanism of hinge type three-jaw.
Background technique
With the continuous development of automobile industry, the aggravation of automobile industry competition, thus to auto parts and components machining accuracy
It is required that also higher and higher.When needing with the blank hole of components come positioning compression, it is desirable to use hold-down mechanism.And when compression position
Set in the casting plane of the stepped hole of workpiece, and need when reliably being compressed with this position to workpiece, due to workpiece hole compared with
It is small, it is difficult to be put into multiple hold-down mechanisms.And use 3 rigid water hammer hold-down mechanisms when, due to workpiece casting plane precision compared with
Difference, three compression points are difficult to while workpiece pressing.Workpiece is caused not to be compacted in some direction.Vibration will be generated when processing,
Machining accuracy is caused to reduce.This just needs a three point self-adapted hold-down mechanisms.
Summary of the invention
The present invention is in view of the above-mentioned problems, provide a kind of adaptive hold-down mechanism of hinge type three-jaw, the hold-down mechanism energy device to hole
Mouth blank step surface is reliably compressed.
Technical solution according to the invention: a kind of adaptive hold-down mechanism of hinge type three-jaw, which is characterized in that including a tool
There is the fulcrum bearing of axially extending bore；
Attachment base, is fixed on the upper end of the fulcrum bearing, and attachment base upper end is evenly distributed with three rotatable pressing plates；
Pull rod, it is removable to be actively tied in the axially extending bore of fulcrum bearing, and pull rod upper end is upwardly extended across the centre bore of attachment base,
Pull rod top is connected with three pressing plates, and when realizing that pull rod stretches, pressing plate is rotated relative to attachment base；
Tapered sleeve, axial limiting are fixed on the top of the pull rod, fitting setting central elastic lasso, central elastic in tapered sleeve inner hole
Lasso is sheathed on the cylinder table of pull rod upper end formation；
The tail end of the pressing plate is equipped with boss, and at work, boss is matched with the circular conical surface that tapered sleeve is arranged upward.
As a further improvement of the present invention, the pressing plate is close to one end of boss one end hinged hinge plate, flap
The other end is hinged with pull rod.
As a further improvement of the present invention, the pull rod upper end is equipped with radial protrusion portion, and flap lower part is placed in radial direction
In the slot of lug boss setting.
As a further improvement of the present invention, the flap is connected by upper pin with pressing plate, is arranged on upper pin
Pressing plate elastic collar, pressing plate are placed in the inner hole of pressing plate with elastic collar.
As a further improvement of the present invention, the attachment base includes plate pedestal, and plate base bottom surface is equipped with axial prolong
The sleeve part stretched, the sleeve part are equipped in the counterbore of fulcrum bearing upper end, and circumferentially shape is equal for the upper surface of plate pedestal
The cloth three pressing plate seats being vertically arranged, each pressing plate seat upper end offer guide groove, and pressing plate is articulated with by big pin shaft
In the guide groove.
As a further improvement of the present invention, fulcrum bearing bottom surface installation oil cylinder, the piston rod of oil cylinder and pull rod lower end
It is connected.
As a further improvement of the present invention, the end cap limit that the tapered sleeve is arranged by tie rod end is fixed.
The technical effects of the invention are that: product of the present invention is directed to the shortcomings that existing connector progress specific aim Curve guide impeller,
It may be implemented specifically to set up needs according to frame body in use, corresponding angular adjustment carried out to steering knuckle, is met
Various angles set up needs；Meanwhile the connecting shaft of product of the present invention special designing, no-welding connection may be implemented, and connecting can
By stabilization.
Detailed description of the invention
Fig. 1 is main view of the invention.
Fig. 2 is perspective view of the invention.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing.
Fig. 1, in 2, including oil cylinder 1, fulcrum bearing 2, attachment base 3, pull rod 4, lower bearing pin 5, tapered sleeve 6, big pin shaft 7, flap
8, the first pressing plate 9, upper pin 10, end cap 11, the second pressing plate 12, third pressing plate 13, pressing plate circlip 14, central elastic set
Circle 15 etc..
As shown in Figure 1, 2, the present invention is a kind of adaptive hold-down mechanism of hinge type three-jaw, has axially extending bore including one
Fulcrum bearing 2；2 upper end fixed connecting base 3 of fulcrum bearing, 3 upper end of attachment base are evenly distributed with three rotatable pressing plates 9,12,13；Fulcrum bearing 2
Axially extending bore in move and be equipped with pull rod 4, the centre bore that 4 upper end of pull rod passes through attachment base 3 upwardly extends, on pull rod 4
Portion is connected with three pressing plates 9,12,13, and when realizing that pull rod 4 stretches, pressing plate 9,12,13 is rotated relative to attachment base 3；Pull rod 4
Top axial limits fixed tapered sleeve 6, is equipped with central elastic lasso 15 in 6 inner hole of tapered sleeve, central elastic lasso 15 is sheathed on
On the cylinder table that 4 upper end of pull rod is formed；The tail end of pressing plate 9,12,13 is equipped with boss, and at work, boss and tapered sleeve 6 are towards upper
The circular conical surface being just arranged matches, to realize the floating support to pressing plate.Tapered sleeve 6 by 4 end of pull rod be arranged end cap 11 into
Row axial limiting is fixed.
In order to realize that pressing plate 9,12,13 and pull rod 4 reliably link and ensure that pressing plate 9,12,13 can be in the work of pull rod 4
With lower reliable workpiece pressing, pressing plate 9,12,13 is close to one end of boss one end hinged hinge plate 8, the other end of flap 8 and drawing
Bar 4 is hinged.
4 upper end of pull rod is equipped with radial protrusion portion, and 8 lower part of flap is placed in the slot of radial protrusion portion setting.It is understood that
Be in order to be matched with three block pressur plates 9,12,13, in radial protrusion portion be arranged three slots, three 8 upper ends of flap respectively with
Corresponding pressing plate is hinged, and three 8 lower parts of flap are respectively placed in corresponding slot, and at work, flap 8 can be corresponding
Make radial rotating in slot.
Flap 8 is connected by upper pin 10 with pressing plate 9,12,13, and pressing plate elastic collar is arranged on upper pin 10
14, pressing plate elastic collar 14 is placed in the inner hole of pressing plate 9,12,13.14 stress of pressing plate elastic collar can generate deformation.
Attachment base 3 includes plate pedestal 3-1, and the plate bottom surface pedestal 3-1 is equipped with axially extending sleeve part 3-2, the set
Canister portion 3-2 is equipped in the counterbore of 2 upper end of fulcrum bearing, and circumferentially shape is evenly distributed with three vertically for the upper surface of plate pedestal 3-1
The pressing plate seat 3-3 of setting, each upper end pressing plate seat 3-3 offer guide groove, and pressing plate 9,12,13 is cut with scissors by big pin shaft 7
It is connected in the guide groove.In specific setting, pressing plate includes the first pressing plate 9, the second pressing plate 12, third pressing plate 13.
When in order to realize work, pull rod 4 can be realized axial movement, in 2 bottom surface installation oil cylinder 1 of fulcrum bearing as execution
The piston rod of part, oil cylinder 1 is connected with 4 lower end of pull rod.
The course of work of the invention is as follows: the fulcrum bearing 2 of the adaptive hold-down mechanism of hinge type three-jaw is mounted on fixture.
After workpiece is in place in fulcrum bearing 2.The piston rod of oil cylinder 1 stretches out, and pull rod 4 is driven to move upwards.Pull rod 4 passes through end cap
11 and upper pin 10 and pressing plate elastic collar 14, drive the first pressing plate 9, the second pressing plate 12, third pressing plate 17 to move.First pressure
Plate 9, the second pressing plate 12, third pressing plate 13 are protruding under the constraint of flap 8.Until some pressing plate contact workpiece.If
The pressing plate of contact workpiece is the first pressing plate 9 first, then after the head contact workpiece of the first pressing plate 9, in the reaction force of workpiece
Under, upper pin 10 compresses pressing plate elastic collar 14, and pressing plate is deformed with elastic collar 14.Simultaneously below 9 tail portion of the first pressing plate
Boss contacts tapered sleeve 6, pushes tapered sleeve 6, and 6 center of compression elastic collar 15 of tapered sleeve is moved to tapered sleeve 6 at lower resistance.Pull rod 4 after
It is continuous to rise, until another pressing plate contact workpiece.If the pressing plate of second contact workpiece is the second pressing plate 12, the second pressing plate
After 12 head contact workpiece, under the reaction force of workpiece, upper pin 10 compresses pressing plate elastic collar 14, pressing plate elasticity
Lasso 14 deforms.The boss below 12 tail portion of the second pressing plate contacts tapered sleeve 6 simultaneously, pushes tapered sleeve 6, tapered sleeve 6 center of compression elasticity
Lasso 15 is moved to tapered sleeve 6 at lower resistance.Pull rod 4 continues to rise, until the head contact workpiece of third pressing plate 13.Third
After the head contact workpiece of pressing plate 17, under the reaction force of workpiece, upper pin 10 compresses pressing plate elastic collar 14, and pressing plate is used
Elastic collar 14 deforms, and then the boss below 13 tail portion of third pressing plate contacts tapered sleeve 6, at this time the first pressing plate 9, the second pressing plate
12, the tail portion lower projection of third pressing plate 13 contacts tapered sleeve 6, and tapered sleeve 6 can not be moved by self-centering, and the first pressing plate 9,
The equal contact workpiece in head of second pressing plate 12, third pressing plate 13.Pull rod 4 continues to rise, and the pressure of pull rod 4 is passed by tapered sleeve 6
It is delivered to the tail portion lower projection of the first pressing plate 9, the second pressing plate 12, third pressing plate 17.First pressing plate 9, the second pressing plate 12, third pressure
The head workpiece pressing of plate 17.Compaction process of the present invention terminates.
After process finishing, the piston rod of oil cylinder 1 is retracted, and pull rod 4 is driven to move downward.Pull rod 4 passes through upper pin 10 and pressure
Plate elastic collar 14 drives the first pressing plate 9, the second pressing plate 12, third pressing plate 17 to move.First pressing plate 9, the second pressing plate 12,
The tail portion lower projection of three pressing plates 17 disengages tapered sleeve 6.Central elastic lasso 15 restores shape automatically, and tapered sleeve 6 recenters.
First pressing plate 9, the second pressing plate 12, third pressing plate 17 are total to flap 8 and attachment base 3 and pin shaft and pressing plate elastic collar 14
Under constraining, to contract, until the piston rod of oil cylinder 1 is shunk in place.Pressing plate restores shape with elastic collar 14 automatically simultaneously,
Release process of the invention terminates.
The working principle of the invention: this is the adaptive hold-down mechanism of hinge type three-jaw.By rationally design linkage and
Platen shape makes pressing plate under linkage constraint, when moving to theoretical compacted position, pressing plate tail portion boss and tapered sleeve contact,
Hold-down mechanism is automatically switched to three lever mechanisms of 6 actuator of tapered sleeve, passes through the pressing plate elasticity of elastic collar 14
Deform bullet, the Planar Mechanisms of eliminating machine.By the floating of tapered sleeve 6, enable three lever mechanisms according to the difference of workpiece pressure point height
Different automatic adjustment makes three pressing plates can reliable workpiece pressing.When mechanism is unclamped, pass through pressing plate elastic collar 14 and central elastic
The recoverable force of property lasso 15, makes mechanism automatically reset.
Claims (7)
1. a kind of adaptive hold-down mechanism of hinge type three-jaw, which is characterized in that including a fulcrum bearing (2) with axially extending bore；
Attachment base (3), is fixed on the upper end of the fulcrum bearing (2), and attachment base (3) upper end is evenly distributed with three rotatable pressing plates
(9,12,13)；
Pull rod (4), in the removable axially extending bore for being actively tied in fulcrum bearing (2), and pull rod (4) upper end passes through in attachment base (3)
Heart hole upwardly extends, and pull rod (4) top is connected with three pressing plates (9,12,13), when realizing that pull rod (4) stretch, pressing plate (9,
12,13) it relative to attachment base (3) rotates；
Tapered sleeve (6), axial limiting are fixed on the top of the pull rod (4), fitting setting central elastic lasso in tapered sleeve (6) inner hole
(15), central elastic lasso (15) is sheathed on the cylinder table of pull rod (4) upper end formation；
The tail end of the pressing plate (9,12,13) is equipped with boss, at work, the circular cone that boss is arranged upward with tapered sleeve (6)
Face matches.
2. the adaptive hold-down mechanism of hinge type three-jaw as described in claim 1, which is characterized in that the pressing plate (9,12,13)
Close to one end of boss one end hinged hinge plate (8), the other end of flap (8) and pull rod (4) are hinged.
3. the adaptive hold-down mechanism of hinge type three-jaw as claimed in claim 2, which is characterized in that pull rod (4) upper end is set
There is radial protrusion portion, flap (8) lower part is placed in the slot of radial protrusion portion setting.
4. the adaptive hold-down mechanism of hinge type three-jaw as claimed in claim 2, which is characterized in that the flap (8) passes through
Upper pin (10) is connected with pressing plate (9,12,13), is arranged on upper pin (10) pressing plate elastic collar (14), pressing plate elasticity
Lasso (14) is placed in the inner hole of pressing plate (9,12,13).
5. the adaptive hold-down mechanism of hinge type three-jaw as described in claim 1, which is characterized in that the attachment base (3) includes
Plate pedestal (3-1), the plate pedestal bottom surface (3-1) are equipped with axially extending sleeve part (3-2), sleeve part (3-2) cooperation
It is set in the counterbore of fulcrum bearing (2) upper end, circumferentially shape is evenly distributed with three pressures being vertically arranged for the upper surface of plate pedestal (3-1)
Panel seat (3-3), each pressing plate seat (3-3) upper end offer guide groove, and pressing plate (9,12,13) is cut with scissors by big pin shaft (7)
It is connected in the guide groove.
6. the adaptive hold-down mechanism of hinge type three-jaw as described in claim 1, which is characterized in that fulcrum bearing (2) bottom surface
The piston rod of installation oil cylinder (1), oil cylinder (1) is connected with pull rod (4) lower end.
7. the adaptive hold-down mechanism of hinge type three-jaw as described in claim 1, which is characterized in that the tapered sleeve (6) passes through drawing
The end cap (11) of bar (4) end setting, which limits, to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106002.1A CN109623428A (en) | 2019-02-02 | 2019-02-02 | The adaptive hold-down mechanism of hinge type three-jaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106002.1A CN109623428A (en) | 2019-02-02 | 2019-02-02 | The adaptive hold-down mechanism of hinge type three-jaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109623428A true CN109623428A (en) | 2019-04-16 |
Family
ID=66064898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910106002.1A Pending CN109623428A (en) | 2019-02-02 | 2019-02-02 | The adaptive hold-down mechanism of hinge type three-jaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109623428A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453821A (en) * | 2021-01-26 | 2021-03-09 | 菲格瑞特（苏州）汽车科技有限公司 | Clamping device for automobile parts |
| CN113263342A (en) * | 2021-06-29 | 2021-08-17 | 浙江今飞机械有限公司 | Auxiliary device for processing bicycle chain wheel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU984798A1 (en) * | 1981-07-31 | 1982-12-30 | Специальное Конструкторское Бюро Агрегатных Станков | Wedge plunger power mechanism |
| CN2900043Y (en) * | 2006-01-23 | 2007-05-16 | 许晓华 | Press plate turning processing clamp |
| CN202428210U (en) * | 2012-01-18 | 2012-09-12 | 苏州农业职业技术学院 | Anti-drop workpiece holding clamp |
| CN204771646U (en) * | 2015-07-02 | 2015-11-18 | 庆铃汽车（集团）有限公司 | Mechanism in automatic correction of branch of spindle |
| CN205763956U (en) * | 2016-05-19 | 2016-12-07 | 宁波汇众汽车车桥制造有限公司 | Modified model turning clamp |
| CN106799603A (en) * | 2016-12-28 | 2017-06-06 | 无锡贝斯特精机股份有限公司 | 2 Compliant pressure fixtures of different height |
-
2019
- 2019-02-02 CN CN201910106002.1A patent/CN109623428A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU984798A1 (en) * | 1981-07-31 | 1982-12-30 | Специальное Конструкторское Бюро Агрегатных Станков | Wedge plunger power mechanism |
| CN2900043Y (en) * | 2006-01-23 | 2007-05-16 | 许晓华 | Press plate turning processing clamp |
| CN202428210U (en) * | 2012-01-18 | 2012-09-12 | 苏州农业职业技术学院 | Anti-drop workpiece holding clamp |
| CN204771646U (en) * | 2015-07-02 | 2015-11-18 | 庆铃汽车（集团）有限公司 | Mechanism in automatic correction of branch of spindle |
| CN205763956U (en) * | 2016-05-19 | 2016-12-07 | 宁波汇众汽车车桥制造有限公司 | Modified model turning clamp |
| CN106799603A (en) * | 2016-12-28 | 2017-06-06 | 无锡贝斯特精机股份有限公司 | 2 Compliant pressure fixtures of different height |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453821A (en) * | 2021-01-26 | 2021-03-09 | 菲格瑞特（苏州）汽车科技有限公司 | Clamping device for automobile parts |
| CN112453821B (en) * | 2021-01-26 | 2021-04-16 | 菲格瑞特（苏州）汽车科技有限公司 | Clamping device for automobile parts |
| CN113263342A (en) * | 2021-06-29 | 2021-08-17 | 浙江今飞机械有限公司 | Auxiliary device for processing bicycle chain wheel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109623428A (en) | The adaptive hold-down mechanism of hinge type three-jaw | |
| CN110216508B (en) | Auxiliary supporting and clamping linkage device | |
| CN106695301A (en) | Self-adaptive placing angle pressing device and pressing method thereof | |
| CN105922033A (en) | Step shaft clamping device | |
| CN108214037A (en) | Machine tool fixture | |
| CN103737372B (en) | Expansion sleeve linkage compression mechanism | |
| CN213258020U (en) | Bush press fitting clamp with error proofing function | |
| CN107081384A (en) | One kind rises riveting tool | |
| CN205834834U (en) | A kind of lathe and the pneumatic milling clamper of connecting rod cap pressure-bearing surface thereof | |
| CN104096770A (en) | Seal contactor riveting clamp for moving contact chip component with elastic reed | |
| CN217223653U (en) | Mobile hydraulic tensioning and positioning mechanism | |
| KR102458888B1 (en) | Annulr crimping apparatus | |
| CN215927998U (en) | Pneumatic actuator detects anchor clamps | |
| CN205834768U (en) | Multiple spot becomes a high integrated positioning supporting mechanism | |
| CN205572625U (en) | Bench drill work piece clamping device | |
| CN205685079U (en) | Pump housing positioning clamping device | |
| CN210588004U (en) | Elastic cylindrical pin press-fitting tool | |
| KR20100031982A (en) | Fixing method of oil pump cover for automatic transmission and fixing device | |
| CN209466178U (en) | Three knuckle outer ring press-fitting tools | |
| CN212217835U (en) | Tooling for processing upper hole of special-shaped servo piston | |
| CN109623425A (en) | The adaptive hold-down mechanism of lever three-jaw | |
| CN106363203A (en) | Chuck used for machining synchronizer friction ring thin-walled parts | |
| CN215698508U (en) | Electric actuator output shaft hole shaping device | |
| CN104801649B (en) | Anti-bend chuck type hot forging die | |
| CN107538243A (en) | Female members positioning clamping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
|
| RJ01 | Rejection of invention patent application after publication |