CN209272979U - The front-fork seat positioning clamping device of excavator swing arm processing tool - Google Patents
The front-fork seat positioning clamping device of excavator swing arm processing tool Download PDFInfo
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- CN209272979U CN209272979U CN201822025983.0U CN201822025983U CN209272979U CN 209272979 U CN209272979 U CN 209272979U CN 201822025983 U CN201822025983 U CN 201822025983U CN 209272979 U CN209272979 U CN 209272979U
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- China
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- positioning
- clamping device
- lead screw
- drive lead
- gripping block
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Abstract
The utility model discloses a kind of front-fork seat positioning clamping devices of excavator swing arm processing tool, including front fork pedestal, axial silk pole clamping device, symmetrical positioning clamping device；The axial silk pole clamping device is mounted on front fork the middle of the base, and symmetrical positioning clamping device is mounted on front fork the middle of the base and is located at the surface of axial silk pole clamping device.Due to being that two shaft shoulders limit its axial movement among the drive lead screw of the utility model, two sides are the screw thread of opposite rotation direction, cooperate with the positioning gripping block of corresponding rotation direction, the positioning gripping block of two sides inwardly or outwardly moves simultaneously when rotating drive lead screw, it is placed in front-fork seat in the utility model structure, realizes median plane positioning.Has the advantages that easy to operate, accurate positioning.
Description
Technical field
The utility model relates to field of machining, fixed more particularly to a kind of front-fork seat of excavator swing arm processing tool
Position clamping device.
Background technique
The swing arm of hydraulic crawler excavator is very important structural member, and it is the highest portion of failure rate that receiving external load function is big
Part, quality directly determine excavator quality and working performance.
As shown in Figure 1, swing arm A use box typed structure, generally have certain camber guarantee its function, mainly by A1 after
The composition such as bearing, A2 upper cover plate, A3 left side plate, A4 lower ear plate, A5 upper ear plate, A6 lower cover plate and A7 front-fork seat.Using postwelding
Overall processing, processing content are as follows: A1 rear support, A4 lower ear plate, A5 upper ear plate and A7 front-fork seat bore hole；A1 rear support mills face, A7
Front-fork seat shaving.
Swing arm process for machining is complex, for the finishing operation of boom structure part manufacture, because of a group weldering dimensional accuracy, welds
It connects the error that the reasons such as deformation generate and all focuses on machining processes, there is higher incidence relation between each group hole, meanwhile, processing
Hole is also one of weak vulnerable zone of swing arm, if deviation occurs in processing dimension, the abrasion of swing arm several sets of apertures gently occurs and accelerates to shorten
Service life occurs fatigue rupture and generates the functional issues such as abnormal sound shake, heavy then lead to not machine assembly, directly report
It is useless, therefore, higher technical requirements are machined with to swing arm hole, to guarantee the quality of boom structure part.
Summary of the invention
The purpose of this utility model is to provide before a kind of easy to operate, accurate positioning excavator swing arm processing tool
Forked standard positioning clamping device.
To achieve the above object, the technical solution of the utility model is:
The utility model is a kind of front-fork seat positioning clamping device of excavator swing arm processing tool, including front fork pedestal,
Axial silk pole clamping device, symmetrical positioning clamping device；The axial silk pole clamping device is mounted on front fork the middle of the base,
Symmetrical positioning clamping device is mounted on front fork the middle of the base and is located at the surface of axial silk pole clamping device.
The axial silk pole clamping device include two pieces of support plates, anti-rotation transmission shaft, bearing mounting base, screw rod, axle sleeve,
Clamping plate, limit plectane, bolt, bearing；Two pieces of support plates, which are respectively separated, to be mounted on front fork pedestal, bearing mounting base
It is mounted by means of bolts in two pieces of support plates, the both ends of anti-rotation transmission shaft pass through limit plectane respectively and are fixed on two pieces of supports
On plate, the both ends of screw rod are distinguished on the bearing mounting base of rotatable socket on the supporting plate by bearing, and clamping plate passes through axis
Set slips on anti-rotation transmission shaft and the lower part of clamping plate is screwed on screw rod.
The symmetrical positioning clamping device includes positioning grip base, drive lead screw, drive lead screw mounting base, left-handed
Position gripping block, dextrorotation positions gripping block；The lower end of the positioning grip base is fixed on front fork pedestal, drive lead screw peace
Dress seat is fixedly mounted on the upper cover plate of positioning grip base, in the middle part of drive lead screw activity be nested in drive lead screw mounting base and
It is resisted against the two sidewalls of drive lead screw mounting base by two shaft shoulders limitation in the middle part of drive lead screw, limits the axis of drive lead screw
To movement, the both ends of drive lead screw have the screw thread of opposite rotation direction；The left-handed positioning gripping block and dextrorotation position gripping block
It is screwed onto the both ends of drive lead screw respectively, all downward limit of projection one of left-handed positioning gripping block and dextrorotation positioning gripping block bottom surface is led
To block, which all slips in the sliding slot that positioning clamps on base upper cover plate, to limit the rotation of positioning gripping block
Freedom degree.
After adopting the above scheme, since the utility model includes front fork pedestal, axial silk pole clamping device, symmetrical positioning
Clamping device is that two shaft shoulders limit its axial movement among the drive lead screw in symmetrical positioning clamping device, and two sides are phase
Derotation to screw thread, cooperate with the positioning gripping block of corresponding rotation direction, when rotating drive lead screw the positioning gripping block of two sides simultaneously to
It outside or moves inward, is placed in front-fork seat in the utility model structure, realize median plane positioning.With easy to operate, positioning is quasi-
True advantage.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the axonometric drawing of swing arm；
Fig. 2 is the axonometric drawing of the utility model front-fork seat positioning clamping device；
Fig. 3 is the axonometric drawing of the utility model axial direction silk pole clamping device；
Fig. 4 is the axonometric drawing of the utility model symmetrical expression positioning clamping device；
Fig. 5 is the axonometric drawing of the utility model drive lead screw；
Fig. 6 is the axonometric drawing of the utility model drive lead screw mounting base.
Specific embodiment
As shown in Fig. 2, the utility model is a kind of front-fork seat positioning clamping device of excavator swing arm processing tool, including
Front fork pedestal 1, axial silk pole clamping device 2, symmetrical positioning clamping device 3；Positioning for front-fork seat clamps.
The front fork pedestal 1 is front-fork seat altitude location and support member, is formed by plate welding post-processing；Described
Axial silk pole clamping device 2 is mounted on the middle part of front fork pedestal 1, symmetrical positioning clamping device 3 be mounted on 1 middle part of front fork pedestal and
Positioned at the surface of axial silk pole clamping device 2.
As shown in figure 3, the axial silk pole clamping device 2 includes two pieces of support plates 21, anti-rotation transmission shaft 22, bearing peace
Fill seat 23, screw rod 24, axle sleeve 25, clamping plate 26, limit plectane 27, bolt 28, bearing 29；Two pieces of support plates 21 difference
Interval is mounted on front fork pedestal 1, and bearing mounting base 23 is fixedly mounted in two pieces of support plates 21 by bolt 28, anti-rotation transmission
The both ends of axis 22 pass through limit plectane 27 respectively and are fixed in two pieces of support plates 21, and the both ends of screw rod 24 respectively can by bearing 29
On the bearing mounting base 23 of rotation being socketed in support plate 21, clamping plate 26 is slipped on anti-rotation transmission shaft 22 by axle sleeve 25
And the lower part of clamping plate 26 is screwed on screw rod 24.23 mounted inside of bearing mounting base has bearing 29, and is assemblied in branch
On fagging 21, screw rod sleeve is fixed on clamping plate 26, rotary screw rod 24, drives clamping plate 26 along axis by screw-driven principle
It not can rotate, can only be axially moveable to movement, 2 guarantee clamping plates 26 of anti-rotation transmission shafts 22, to prevent clamping plate 26 from wearing
Problem, by the axle sleeve assembly through Overheating Treatment in the position for passing through hole with anti-rotation transmission shaft 22.
As shown in Figure 4-Figure 6, the symmetrical positioning clamping device 3 include positioning grip base 31, drive lead screw 32,
Drive lead screw mounting base 33, left-handed positioning gripping block 34, dextrorotation position gripping block 35；The lower end of the positioning grip base 31
It is fixed on front fork pedestal 1, drive lead screw mounting base 33 is assembled using semi-circular piece and it is fixedly mounted on positioning and clamps
On the upper cover plate 311 of pedestal 31,32 middle part activity of drive lead screw is nested in drive lead screw mounting base 33 and passes through drive lead screw
Two shaft shoulders limitation at 32 middle parts is resisted against the two sidewalls of drive lead screw mounting base 33, limits the axial of drive lead screw 32 and moves
Dynamic, the both ends of drive lead screw 32 have the screw thread of opposite rotation direction, cooperate with the positioning gripping block 34,35 of corresponding rotation direction；Described
Left-handed positioning gripping block 34 and dextrorotation positioning gripping block 35 are screwed onto the both ends of drive lead screw 32, left-handed positioning gripping block 34 respectively
All downward one limit guide block 341,351 of projection in 35 bottom surface of gripping block is positioned with dextrorotation, the limit guide block 341,351 is all sliding
On positioning 31 upper cover plate of grip base in 311 sliding slot 312, to limit left-handed positioning gripping block 34 and dextrorotation positioning gripping block
35 rotational freedoms, it, which can only be moved, when guarantee rotates drive lead screw 32 is not able to rotate.When rotating drive lead screw 32, two sides are determined
Position gripping block 34,35 inwardly or outwardly moves simultaneously, realizes median plane positioning.
As shown in Fig. 2, working principle of the utility model is:
The upper cover plate 311 of the pedestal 31 of the utility model is provided with sliding slot 312, left-handed positioning gripping block 34 and dextrorotation locating clip
Tight 35 bottom limit guide block 341,351 of block is placed in sliding slot 312, limits rotational freedom, when guaranteeing rotation drive lead screw 32
It can only move and not be able to rotate；Drive lead screw mounting base 33 is assembled using semi-circular piece, is two among drive lead screw 32
The shaft shoulder limits its axial movement, and two sides are the screw thread of opposite rotation direction, cooperates with the positioning gripping block 34,35 of corresponding rotation direction, rotation
The positioning gripping block 34,35 of two sides inwardly or outwardly moves simultaneously when drive lead screw 32, and front-fork seat is made to be placed in the utility model knot
In structure, median plane positioning is realized.
The above, only the utility model preferred embodiment, therefore the utility model implementation cannot be limited with this
Range should still belong to this reality that is, according to equivalent changes and modifications made by present utility model application the scope of the patents and description
In the range of being covered with new patent.
Claims (3)
1. a kind of front-fork seat positioning clamping device of excavator swing arm processing tool, it is characterised in that: including front fork pedestal, axial direction
Silk pole clamping device, symmetrical positioning clamping device；The axial silk pole clamping device is mounted on front fork the middle of the base, symmetrically
Formula positioning clamping device is mounted on front fork the middle of the base and is located at the surface of axial silk pole clamping device.
2. the front-fork seat positioning clamping device of excavator swing arm processing tool according to claim 1, it is characterised in that: institute
The axial silk pole clamping device stated includes two pieces of support plates, anti-rotation transmission shaft, bearing mounting base, screw rod, axle sleeve, clamping plate, limit
Circle of position plate, bolt, bearing；Two pieces of support plates, which are respectively separated, to be mounted on front fork pedestal, and bearing mounting base passes through bolt
It is fixedly mounted in two pieces of support plates, the both ends of anti-rotation transmission shaft pass through limit plectane respectively and are fixed in two pieces of support plates, silk
The both ends of bar are distinguished on the bearing mounting base of rotatable socket on the supporting plate by bearing, and clamping plate is slipped by axle sleeve
On the anti-rotation transmission shaft and lower part of clamping plate is screwed on screw rod.
3. the front-fork seat positioning clamping device of excavator swing arm processing tool according to claim 1, it is characterised in that: institute
The symmetrical positioning clamping device stated includes positioning grip base, drive lead screw, drive lead screw mounting base, left-handed positioning clamping
Block, dextrorotation position gripping block；The lower end of the positioning grip base is fixed on front fork pedestal, and drive lead screw mounting base is fixed
It is mounted on the upper cover plate of positioning grip base, activity is nested in drive lead screw mounting base and passes through transmission in the middle part of drive lead screw
Two shaft shoulders limitation in the middle part of screw rod is resisted against the two sidewalls of drive lead screw mounting base, limits the axial movement of drive lead screw,
The both ends of drive lead screw have the screw thread of opposite rotation direction；The left-handed positioning gripping block and dextrorotation positioning gripping block are spirally connected respectively
At the both ends of drive lead screw, left-handed positioning gripping block and dextrorotation position all downward one limit guide block of projection in gripping block bottom surface, should
Limit guide block is all slipped in the sliding slot that positioning clamps on base upper cover plate, to limit the rotational freedom of positioning gripping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822025983.0U CN209272979U (en) | 2018-12-04 | 2018-12-04 | The front-fork seat positioning clamping device of excavator swing arm processing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822025983.0U CN209272979U (en) | 2018-12-04 | 2018-12-04 | The front-fork seat positioning clamping device of excavator swing arm processing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209272979U true CN209272979U (en) | 2019-08-20 |
Family
ID=67609548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822025983.0U Active CN209272979U (en) | 2018-12-04 | 2018-12-04 | The front-fork seat positioning clamping device of excavator swing arm processing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209272979U (en) |
-
2018
- 2018-12-04 CN CN201822025983.0U patent/CN209272979U/en active Active
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