A kind of processing tool and processing method of automatic diminution damping block casting shape position error
Technical field
The present invention relates to processing tool equipment technical fields, inclined more particularly to a kind of automatic diminution damping block casting morpheme
The processing tool and processing method of difference.
Background technique
Automobile shock block is an indispensable aftermarket product in automobile.In addition to size Control when automobile shock block is processed
It is required that it is outer, also there is higher control requirement to weight, generally requiring weight tolerance is positive and negative 35g, in order to guarantee automobile shock block casting
The consistency of part, general we can select high-pressure horizontal automatic production line to produce casting, but to move back useless amount still high for average processing
Up to 26%, economic loss is serious.
The processing technology of existing automobile absorber is as follows: the first procedure, with lengthening three grab Vehicle Processing at outside casting
94 degree of identical angles of circle, axially position is with facet by flat, and radial to lengthen the three big planes for grabbing clamping vehicle casting, cutting output is
2.0mm, while the R4 of falling bull nose are shown in Fig. 1;Second operation work, using the good big plane of vehicle as benchmark face, three grab the big planar side of clamping
Outer circle is cut with scissors intermediate counterbore with forming reamer and is struck off, sees Fig. 2;Third procedure, on the basis of the big plane processed, three grab folder
Tight outer circle bores 10 centre bore of Φ;4th procedure removes 10 wedge angle of Φ.
Due to the non-standard face in casting face, especially casting side it can be seen from above-mentioned processing technology, there are rough surface,
The problems such as small plethora, use three grab folder 94 degree of sides of damping block, while also to guarantee that clump weight facet is grabbed interior benchmark against three and put down
Face be it is insecure, can be because side irregularly makes damping block facet and three grab interior datum level and deviation occur when clamping side
Form empty positioning phenomenon;It facts have proved that there are unparalleled phenomenons for the good rear and casting facet of big plane machining, then result in flat greatly
There is serious uneven phenomenon in the 179.4mm of falling Φ bull nose after face processes, which leads to the big plane processed and casting hair
Base sinks recessed concentricity and goes wrong, next procedure sink it is recessed strike off processing when heavy concave side wall single side cutting, and lead to casting not
Deng weight key factor, so that substantially increasing processing moves back useless amount.
Summary of the invention
The technical problem to be solved by the present invention is to, the shortcomings that overcoming the prior art, provides and a kind of automatic reduce damping block
The processing tool and processing method of casting shape position error.
In order to solve the above technical problems, technical scheme is as follows:
A kind of processing tool of automatic diminution damping block casting shape position error, including magnesium iron disk and locating piece, in the magnesium iron disk
Columned first shaft hole, the second axis hole, third axis hole and the 4th axis hole are successively offered from a side end face to another side end face,
The first shaft hole, the second axis hole, third axis hole and the 4th axis hole are coaxially disposed and diameter successively successively decreases, the first shaft hole
It is flushed respectively with the both sides of the face of magnesium iron disk with the outer end face of the 4th axis hole;The locating piece includes locating rod and positioning head, institute
The first limit cylinder that positioning head includes is stated, the diameter of the first limit cylinder is greater than the diameter of the 4th axis hole and is less than third
The diameter of axis hole, the second limit cylinder that first limit cylinder end face is coaxially arranged with shape and the 4th axis hole matches,
Second limit cylinder end face is provided with and the spacing block set that shrinkage pool matches in the middle part of damping block casting facet, the positioning
Bar is arranged along the axis of magnesium iron disk, and cover board is fixedly installed in second axis hole, offers through-hole in the middle part of the cover board, described
One end of locating rod passes through through-hole, and the other end is fixedly connected with the first limit cylinder, between the first limit cylinder and cover board
It is provided with reset spring, the reset spring is set in locating rod, in the case where not by external force, the length of the reset spring
Degree is greater than the thickness of third axis hole and the difference of the first limit cylinder thickness;The magnesium iron disk on the end face of first shaft hole far from opening
If three location holes are located on same circumference, and the positioning hole is provided with contour column, three institutes there are three location hole
State contour column stretch out magnesium iron disk height it is equal and be less than the height of spacing block set.
Further, three contour columns are all provided on the same circumference.
The preceding automatic processing tool for reducing damping block casting shape position error of described one kind, the diameter of cover board are greater than third axis
The diameter in hole and less than the diameter of the second axis hole, cover board is mounted by means of bolts on the end face of the second axis hole.
The preceding automatic processing tool for reducing damping block casting shape position error of described one kind, first shaft hole connect with lathe spindle
Disk matches.
A kind of processing method of automatic diminution damping block casting shape position error, comprising the following steps:
S1: connecing disk with lathe spindle for the first shaft hole of processing tool and be connected, fastening, by damping block casting facet to be processed
The shrinkage pool at middle part is docked with the spacing block set on positioning head, then the big plane of damping block casting is pressed with lathe tailstock thimble, will
The facet of damping block casting is pressed to the end face with three contour columns;
S2: after damping block casting is compressed, the big plane of vehicle damping block casting, the then angle the R1 of falling outer circle;
S3: the damping block casting clamping after big plane and the processing in place of the angle R1 is grabbed into tooling the three of vertical drilling milling machine table
On, reamer striking off from the hinge with holes that carries out to damping block casting center is scraped with special molding, until it is flat greatly with damping block casting
The distance in face reaches pre-provisioning request;
S4: the damping block in place drill centers on vertical drilling milling machine is struck off, then bevelling angle, obtains full process process finishing
Damping block;
S5: checking damping block, purged and packed after qualification.
The beneficial effects of the present invention are:
(1) processing tool provided by the invention, the positioning surface by the facet of damping block casting as axially position, damping block
The facet of casting is not in the phenomenon that mould assembling gap, lift case etc. deform in casting process not on die joint, therefore small
Coplanar flat rule, effectively increases the accuracy of casting axially position;
(2) processing tool provided by the invention is when carrying out axially position, by the facet of damping block casting press to three
The contact of contour column determines the fixed plane of a benchmark by the end face of three contour columns, makes the flat of damping block and fixed reference
Face paste is closed, and the big planar dimension deviation of damping block casting caused by casting parting can be eliminated automatically by processing big plane in this way, is formed certainly
Correction guarantees that the accuracy of casting axially position makes casting move back useless rate from original 26% to guarantee the quality of Mechanical processing of casting
It is down to 0.5%;
(3) spacing block set is arranged in the present invention on positioning head, corresponding with the shrinkage pool in the middle part of damping block casting facet, makes damping
Block casting part is when clamping, and in the embeddable shrinkage pool of spacing block set, limitation casting is moved radially, to realize to damping block casting
Radial positioning, avoid damping block casting irregularly leads to the inaccurate phenomenon of radial positioning, during making Mechanical processing of casting
Position is fixed and accurately, guarantees the quality of processing;
(4) in the present invention locating piece by the first limit cylinder, the second limit cylinder, spacing block set and locating rod form one it is whole
Body, the first limit cylinder, the second limit cylinder and spacing block set can extend in magnesium iron disk third axis hole and the 4th axis hole, with reset
Spring, cover board form the caging system being axially movable, and so that processing tool is suitable for various sizes of damping block casting, work as damping
In the middle part of block casting part when the diameter change of shrinkage pool, the facet of damping block casting still can make to process by press to flushing with contour column
The use scope of tooling is wider, can also prevent axially position and interfere with each other with radial positioning;
(5) present invention is provided with reset spring between the first limit cylinder and cover board, and the second convex block of positioning head is completely embedding
When entering four axis holes, reset spring is in micro- deformed state, and reset spring can apply pressure to positioning head always, guarantee in casting
Positioning head can be made to reset after processing is completed, be convenient for subsequent processing, effectively increase processing efficiency.
Detailed description of the invention
Fig. 1 is the existing processing technology step schematic diagram of damping block;
Fig. 2 is the existing processing technology step schematic diagram of damping block;
Fig. 3 is structural schematic diagram of the invention;
Fig. 4 is the perspective view of Fig. 3;
Fig. 5 is the diagrammatic cross-section of processing tool in Fig. 4;
Fig. 6 is the diagrammatic cross-section of magnesium iron disk in Fig. 3;
Fig. 7 is the structural schematic diagram of contour column;
Fig. 8 is the structural schematic diagram of locating piece;
Fig. 9 is the main view of damping block casting;
Figure 10 is the A-A sectional view of Fig. 9;
Wherein: 1, magnesium iron disk;2, first shaft hole;3, the second axis hole;4, third axis hole;5, the 4th axis hole;6, locating piece;7, it positions
Bar;8, positioning head;9, the first limit cylinder;10, the second limit cylinder;11, spacing block set;12, cover board;13, reset spring;
14, contour column;15, damping block casting.
Specific embodiment
It is right below according to specific embodiment and in conjunction with attached drawing to make the contents of the present invention be easier to be clearly understood
The present invention makes further details of explanation.
Present embodiments provide a kind of automatic processing tool for reducing 15 shape position error of damping block casting, including magnesium iron disk 1
With locating piece 6.
Referring to Fig. 6, magnesium iron disk 1 is the cylinder of diameter 110mm, thickness 47mm, at lower end surface middle vehicle one of magnesium iron disk 1
The cylindric first shaft hole 2 that diameter is 100mm, depth is 5mm, shape and the lathe spindle of first shaft hole 2 connect the shape phase of disk
Matching, makes magnesium iron disk 1 is mountable to connect on disk in lathe spindle;2 inner face of first shaft hole one diameter of middle vehicle be 80mm,
Depth is cylindric second axis hole 3 of 15mm, one diameter of middle vehicle of 3 inner face of the second axis hole is 42.15mm, depth is
The cylindric third axis hole 4 of 23mm, one diameter of middle vehicle of the inner face of third axis hole 4 be 38.15mm, depth 5mm
Cylindric 4th axis hole 5, the upper surface of the 4th axis hole 5 extends to the upper surface of magnesium iron disk 1, first shaft hole 2, the second axis hole 3,
Third axis hole 4 and the 4th axis hole 5 are coaxially disposed with magnesium iron disk 1.
Referring to Fig. 8, locating piece 6 includes locating rod 7 and positioning head 8, and positioning head 8 includes that diameter is 42mm, is highly 5mm's
First limit cylinder 9 is coaxially arranged with diameter in the middle part of the first limit 9 upper surface of cylinder and is 38mm, is highly the second of 5mm
Cylinder 10 is limited, the upper surface of the second limit cylinder 10 is provided with spacing block set 11, the cross sectional shape of the spacing block set 11 is
Arc offers shrinkage pool referring to Fig. 9, Figure 10 in the middle part of the facet of damping block casting 15, spacing block set 11 can be partially submerged into recessed
Kong Zhong realizes radial positioning to make damping block casting 15 that can not move radially.
Locating rod 7 is arranged along the axis direction of magnesium iron disk 1, and the upper surface of the second axis hole 3, which is bolted, is equipped with lid
Plate 12 offers the through-hole that a diameter is 15.15mm at the middle part of cover board 12, and one end of locating rod 7 passes through through-hole, the other end
It is fixedly connected with the first limit cylinder 9, is provided with reset spring 13, reset spring 13 between the first limit cylinder 9 and cover board 12
It is set in locating rod 7, in the case where not by external force, the length of reset spring 13 is greater than 18mm, referring to Fig. 5, when positioning head 8
When being entrenched in magnesium iron disk 1, reset spring 13 is in micro- pressured state, applies upward power to positioning head 8.When positioning head by
When to pressure inside magnesium iron disk, positioning head can be to moving inside magnesium iron disk;When positioning head is not by external force, reset spring can be incited somebody to action
Positioning head is pushed to state as shown in Figure 5.
Threaded on the upper surface of magnesium iron disk 1 there are three threaded locating holes, and the diameter of the location hole is 10mm, is highly
10mm, these three location holes are located on the circumference that the same radius is 27mm, and the circumference and 1 end face of magnesium iron disk circle coaxial line,
Three location holes are evenly distributed on the circumference.It is mounted on contour column 14 in each location hole, contour column 14 is by diameter
It 10mm, the threaded rod of height 10mm and diameter 20mm, is highly the column cap composition of 5mm, threaded rod is mounted in location hole, column cap
On the upper surface of magnesium iron disk 1, the upper surface of column cap is respectively positioned in same level.
The present embodiment additionally provides a kind of automatic processing method for reducing 15 shape position error of damping block casting, including following step
It is rapid:
S1: connecing disk with lathe spindle for the first shaft hole 2 of processing tool and be connected, will be in 15 facet of damping block casting to be processed
The shrinkage pool in portion is docked with the spacing block set 11 on positioning head 8, then the big plane of damping block casting 15 is pressed with lathe tailstock thimble,
The facet of damping block casting 15 is pressed to the end face with three contour columns 14;
S2: after damping block casting 15 is compressed, the big plane of vehicle damping block casting 15, the then angle the R1 of falling outer circle;
S3: 15 clamping of damping block casting after big plane and the processing in place of the angle R1 is grabbed into tooling the three of vertical drilling milling machine table
On, with special molding flexible spatulas striking off from holes to 15 center of damping block casting, until it is big with damping block casting 15
The distance of plane reaches pre-provisioning request;
S4: the damping block in place drill centers on vertical drilling milling machine is struck off, then bevelling angle, obtains full process process finishing
Damping block;
S5: checking damping block, purged and packed after qualification.
Above-mentioned processing method passes through using the facet of damping block casting 15 as the positioning surface of axially position, damping block casting
15 facet is not in the phenomenon that mould assembling gap, lift case etc. deform in casting process not on die joint, therefore small flat
The smooth rule in face, effectively increases the accuracy of casting axially position, to guarantee the quality of Mechanical processing of casting, casting is made to move back useless rate
0.5% is down to from original 26%.
In addition to the implementation, the present invention can also have other embodiments;It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.