A kind of monoblock type balance weight and its moulding process
Technical field
The present invention relates to balance weight technical field more particularly to a kind of monoblock type balance weight and its moulding process.
Background technology
It is quickly grown as highway in China improvement of terms and automotive engineering are horizontal, the travel speed of vehicle is also increasingly
Soon.If the quality of automotive wheel is uneven, during this run at high speed, comfort by bus can be not only influenced, but also
Automobile tire and the irregular wear of suspension can be increased, increase the difficulty that automobile controls in the process of moving, cause to drive a vehicle
It is dangerous.In order to avoid this kind of situation, wheel has to pass through special equipment before the mounting --- dynamic wheelo balancer
Device carries out dynamic balancing measurement, increases counterweight appropriate at wheel mass place less than normal, wheel is made to keep dynamic balancing under high speed rotation,
This counterweight is exactly wheel balancing block.
Currently, automobile wheel balance weight mainly has two kinds of forms of coupling type and adhesive type both at home and abroad.Coupling type wheel balance
Block has many advantages, such as to be convenient to mount and dismount, but it requires hub for vehicle wheel that must have a circle flange, and to facilitate installation balance weight, this is to vapour
The appearance of vehicle wheel has a certain impact, and on the other hand installation dismounting has cut scuffing to wheel hub, does each position when dynamic balancing
Difference, a plurality of scuffing influence appearance looks elegant.In recent years, as the high-volume of aluminium alloy wheel hub of vehicle uses and to automobile appearance
Rigors, superior automobile or even common family car also use adhesive wheel balance weight one after another, therefore adhesive type balances
Market demand it is very huge.
Adhesive type balance weight has lead matter, zinc matter, steel material.For a long time, wheel balancing block uses lead to manufacture substantially,
The cost of raw material of the automobile wheel balance weight of lead manufacture is higher, the heavy metal pollution pair that more crucially lead balance weight generates
Human body is harmful.In addition, lead adhesive wheel balance weight used at present is all made of die-casting process molding, which melts lead pig
Energy consumption it is very high, power consumption is several times as much as the energy consumption of die casting machine.The cost that zinc material pastes balance weight is higher, warp
Cost performance of helping is not high.Therefore, current trend is gradually to use steel balance block.Existing steel material pastes balance weight, is
It is made of multiple single small blocks split back side rubberizings, due to the limitation of Sheet Metal Forming Technology, the section of this small blocks is broken
Layer gradient is inconsistent, and aesthetics is not high, and another main aspect, which is such block Sheet Metal Forming Technology, need to cut waste material, and stock utilization only has
60%~65%.
Invention content
Based on above-mentioned background technology, a kind of monoblock type balance weight of present invention proposition and its molding work
Skill.
The present invention proposes a kind of monoblock type balance weight, including:Block body is balanced, the balance block body is strip shape body,
It balances on block body and is equipped with N number of indent being equally spaced along its width direction along its length direction, each indent will be put down
Weighing apparatus block body cuts into the N+1 sub-block bodies being connected to each other, wherein N >=1, and N is integer, indent includes upper indent and pushing
Slot, upper indent and pushing slot are oppositely disposed on the upper surface and lower face of balance block body, and upper indent is by balance block body
End face extends downwards for upper end, pushing slot is extended by the lower end of the balance weight end face that faces upward so that upper indent and pushing slot
The squeezing action extended between bottom surface forms sheet type connect band, and sheet type connect band includes the first tearing band, the second tearing
Band and the connect band between the first tearing band and the second tearing band, the first tearing band and the second tearing band are respectively connected to
Indent and pushing slot, connect band is separately connected two adjacent sub- blocks, and connect band is located at two connected sub- blocks
Center;
It the both sides of the balance weight body length direction and is respectively equipped with from side to center line positioned at the both ends of indent
The recessing groove that position extends.
Preferably, the groove depth of upper indent is more than the groove depth of pushing slot.
Preferably, upper indent is V-shaped groove.
Preferably, pushing slot is V-shaped groove.
Preferably, the opening width of upper indent is L1, and the opening width of pushing slot is L2, and L2 > L1.
Preferably, L1=2.5~3.0mm.
Preferably, L2=3.5~4.0mm.
Preferably, L1=2.5mm.
Preferably, L2=3.5mm.
Preferably, the angle between upper indent two side is A1, and the angle between pushing slot two side is A2, and A2 >
A1。
Preferably, A1=50 °.
Preferably, A2=80 °.
Preferably, along the width direction of balance block body, the width of connect band is D, and the thickness of connect band is H, D:H=
50:8。
Preferably, D=5mm, H=0.8mm.
Preferably, balancing coining on block body has grammes per square metre label.
Preferably, further include Continuous pressing device for stereo-pattern, balance block body is pasted onto on Continuous pressing device for stereo-pattern.
Preferably, balance block body is process using cold-rolled strip.
Preferably, the thickness of cold-rolled strip is 2-4mm.
A kind of moulding process of monoblock type balance weight, specifically includes following steps:
S1, liquidate forming upper indent and pushing slot in the upper and lower end face of cold-rolled strip by upper punch and low punch,
And in upper indent and the reserved sheet type connect band between pushing slot;
S2, when upper indent and pushing slot are during liquidating, when the material thickness of sheet type connect band reaches predetermined value, to thin slice
Formula connect band carries out calking and forms the first tearing band, the second tearing band, and is reserved between the first tearing band and the second tearing band
Connect band;Meanwhile during calking, in the both sides of cold-rolled strip length direction and positioned at the first tearing band and the second tearing band
One end away from each other is respectively formed the recessing groove extended from side to position of center line;
S3, when the quantity of indent on cold-rolled strip reaches preset value, blocked, that cuts blocks body with indent
As monoblock type balance weight.
Preferably, in S1, when upper punch and low punch liquidate, precompressed is first carried out, then liquidate.
In the present invention, multiple indents are stamped and formed out by being carried out to cold-rolled strip, are separated into steel band using indent multiple
For the sub-block body being connected to each other to form monoblock type balance weight, the invention monolithic construction and punching press are formed by indent
Design, waste material resection is few, and stock utilization is high, and up to 90% or more, and monolithic construction design is conducive to processing, can have
Effect improves production efficiency, and reduces energy consumption.In addition, the structure design of monoblock type balance weight can promote the beauty of steel balance block
And subsequent handling operation convenience.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of monoblock type balance weight proposed by the present invention;
Fig. 2 is a kind of vertical view of monoblock type balance weight proposed by the present invention;
Fig. 3 is that the second tearing band and the relationship of the connect band described in a kind of monoblock type balance weight proposed by the present invention are shown
It is intended to;
Fig. 4 is a kind of design sketch of monoblock type balance weight proposed by the present invention;
Fig. 5 is a kind of monoblock type balance weight machining sketch chart proposed by the present invention;
Fig. 6 is a kind of monoblock type balance weight proposed by the present invention lateral forces schematic diagram in process;
Fig. 7 is a kind of monoblock type balance weight proposed by the present invention end face stress diagram in process.
Specific implementation mode
In the following, technical scheme of the present invention is described in detail by specific embodiment.
As shown in figs. 1-7, Fig. 1 is a kind of structural schematic diagram of monoblock type balance weight proposed by the present invention;Fig. 2 is the present invention
A kind of vertical view of the monoblock type balance weight proposed;Fig. 3 is second to be torn described in a kind of monoblock type balance weight proposed by the present invention
Split the relation schematic diagram of band and the connect band;Fig. 4 is a kind of design sketch of monoblock type balance weight proposed by the present invention;Fig. 5 is
A kind of monoblock type balance weight machining sketch chart proposed by the present invention;Fig. 6 is that a kind of monoblock type balance weight proposed by the present invention is adding
Lateral forces schematic diagram during work;Fig. 7 is a kind of monoblock type balance weight proposed by the present invention end face stress in process
Schematic diagram.
Referring to Fig.1-7, a kind of monoblock type balance weight and its moulding process that the embodiment of the present invention proposes, including:Balance weight
Ontology, the balance block body are strip shape body, and balance block body uses thickness to be process for 2-4mm cold-rolled strips, balance weight
It is equipped with N number of indent 1 being equally spaced along its width direction on ontology and along its length direction, each indent 1 is by balance weight
Ontology cuts into the N+1 sub-block bodies 2 being connected to each other, wherein N >=1, and N is integer, indent 1 includes upper indent 11 and pushes
Slot 12, upper indent 11 and pushing slot 12 are oppositely disposed on the upper surface and lower face of balance block body, and upper indent 11 is by putting down
Weigh block body upper end downwards end face extend, pushing slot 12 by the lower end of balance weight face upward end face extend, upper indent 11
Groove depth is more than the groove depth of pushing slot 12, and the opening width of upper indent 11 is L1, and the opening width of pushing slot 12 is L2, and L2 >
L1;The squeezing action extended between upper indent 11 and the bottom surface of pushing slot 12 forms sheet type connect band 3, sheet type connect band
3 include that the first tearing band 31, second tears band 32 and tears the connect band 33 between band 32 positioned at the first tearing band 31 and second,
First tearing band 31 is respectively connected to indent 11 and pushing slot 12 with the second tearing band 32, and connect band 33 is separately connected adjacent
Two sub- blocks 2, and connect band 33 is located at the center of two connected sub- blocks 2, along the width of balance block body
The width in direction, connect band 33 is D, and the thickness of connect band 33 is H, D:H=50:8;The two of the balance weight body length direction
Side and respectively it is equipped with recessing groove 4 from side to position of center line that extend from positioned at the both ends of indent 1.
In the present embodiment, upper indent 11 and pushing slot 12 are V-shaped groove, and the angle between 11 two side of upper indent is A1,
Angle between 12 two side of pushing slot is A2, and A1=50 °, A2=80 °;The opening width of upper indent 11 is L1, pushing slot
12 opening width is L2, and L1=2.5mm, L2=3.5mm;Along the width direction of balance block body, the width of connect band 33
Degree is D, and the thickness of connect band 33 is H, D=5mm, H=0.8mm;Made by the restriction to above-mentioned size by this set
The monoblock type balance weight is obtained when pasting different size wheel, is used convenient for forming the curvature relatively met, convenient for not bending
It is bonded the wheel hub of any specification, and in process, is also conducive to the machine-shaping of mold.
In addition, in the present embodiment, balancing coining on block body has grammes per square metre label, in order to be used for autonomous choosing as needed
It selects.
Balance block body is pasted onto on Continuous pressing device for stereo-pattern 5 by monoblock type balance weight proposed by the invention when specifically used.
A kind of moulding process of monoblock type balance weight, specifically includes following steps:
S1, liquidate forming upper indent 11 and pushing in the upper and lower end face of cold-rolled strip by upper punch and low punch
Slot 12, and in upper indent 11 and the reserved sheet type connect band 3 between pushing slot 12;
S2, when upper indent 11 and pushing slot 12 are during liquidating, when the material thickness of sheet type connect band 3 reaches predetermined value,
Calking is carried out to sheet type connect band 3 and forms the first tearing tearing band 32 of band 31, second, and is torn in the first tearing band 31 and second
It splits and reserves connect band 33 between band 32;Meanwhile during calking, torn in the both sides of cold-rolled strip length direction and positioned at first
It splits the one end of the tearing of band 31 and second band 32 away from each other and is respectively formed the recessing groove 4 extended from side to position of center line;
S3, when the quantity of indent 11 on cold-rolled strip reaches preset value, blocked, cut with indent 1 cut
Disconnected body is monoblock type balance weight.
In the present embodiment, in S1, when upper punch and low punch liquidate, precompressed is first carried out, then liquidate.
In the present invention, multiple indents 1 are stamped and formed out by being carried out to cold-rolled strip, are separated into steel band using indent 1 more
For a sub-block body 2 being connected to each other to form monoblock type balance weight, the invention monolithic construction and punching press are formed by indent
1 design, waste material resection is few, and stock utilization is high, and up to 90% or more, and monolithic construction design is conducive to processing,
Production efficiency height can be effectively improved, energy consumption is reduced.In addition, the structure design of monoblock type balance weight can promote steel balance block
Beautiful and subsequent handling operation convenience.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.