CN104056995A - Hot forming trimming process production line - Google Patents
Hot forming trimming process production line Download PDFInfo
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- CN104056995A CN104056995A CN201410270858.XA CN201410270858A CN104056995A CN 104056995 A CN104056995 A CN 104056995A CN 201410270858 A CN201410270858 A CN 201410270858A CN 104056995 A CN104056995 A CN 104056995A
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Abstract
The invention relates to a hot forming trimming process production line. The hot forming trimming process production line comprises a feeding frame and a collection frame. The hot forming trimming process production line is characterized in that a plurality of presses, a feeding device, a discharging device and a conveying device are arranged between the feeding frame and the collection frame; each press comprises an upper worktable surface and a lower worktable surface which are connected through a press stand column, and a hot forming stamping die is installed between the upper worktable surface and the lower worktable surface; the hot forming stamping die comprises an upper die holder, an upper die insert, a lower die insert and a lower die holder, the lower die insert is fixedly arranged on the lower die holder, the upper die insert is fixedly arranged on the upper die holder, a workpiece is positioned between the upper die insert and the lower die insert, and the shape of the lower surface of the upper die insert and the shape of the upper surface of the lower die insert are consistent with the shape of the surface of the workpiece; a cutting edge gap is left between the cutting edge of the upper die insert and the cutting edge of the lower die insert and the width of the cutting edge gap is 7%-20% of the thickness of the workpiece. The hot forming trimming process production line has the advantages that the stamping force can be effectively reduced and the goals of reducing the investment and improving the efficiency are achieved.
Description
Technical field
The present invention relates to a kind of hot forming deburring production line, belong to hot forming Trimming Die technical field.
Background technology
Automobile boron steel part is as a series of hot forming parts, and production technology is divided into shaping and 2 stages of quench cooled, wherein: shaping stage needs be at high temperature shaped by mould punching; Need to, by controlling certain cooling velocity, can there is the transformation from austenite microstructure to martensite microstructure in the quench cooled stage, obtain high intensity and hardness: different according to boron steel kind, its intensity can reach 500～2000MPa.It is as shown in table 1 that after common hot forming, intensity reaches the boron steel chemical composition of 1500MPa.
Table 1
| C | Si | Mn | P | S | Cr | B | |
| Minimum | 0.20 | 0.20 | 1.00 | - | - | 0.15 | 0.0015 |
| Maximum | 0.25 | 0.35 | 1.30 | 0.025 | 0.015 | 0.25 | 0.0050 |
Utilize the deburring of hot forming Trimming Die, experience feeds intake, mould closure and several stages of die sinking feeding complete hot forming trimming part.
Because part strength is up to 1500MPa, hot forming trimming part mould is to utilize high tonnage mechanical type press to realize deburring at present.For example a pair of A post one order deburring need to be used the punching machine of 1000 tons conventionally.For this reason, the investment of hot forming production line is very large, for example, produce continuously the production line of A post size part for one, needs the mechanical press of 1000 tons of left and right of 2-3 platform, makes an investment in 6,000 ten thousand RMB left and right.Powerful impulsive force also makes edge iron piece shorter service life.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of hot forming deburring production line is provided, can effectively reduce stamping press, reach the object of saving investment and raising the efficiency.
According to technical scheme provided by the invention, described hot forming deburring production line, comprise material loading frame and rewinding frame, it is characterized in that: between described material loading frame and rewinding frame, set gradually 2～4 press, in material loading frame one side, feeding device is set, in rewinding frame one side, blanking device is set, between two press, conveyer is set; Described press comprises upper table face and lower table face, and upper table face is connected by press column with lower table face, between upper table face and lower table face, hot forming diel is installed; Described hot forming diel comprises that upper bolster, patrix are inserted, counterdie is inserted and die shoe, counterdie is inserted and is fixed on die shoe, patrix is inserted and is fixed on upper bolster, workpiece is positioned between patrix is inserted and counterdie is inserted, and patrix underside shape, the counterdie upper surface shape of inserting of inserting is consistent with surface of the work shape; Between the cutting edge that the cutting edge that described patrix is inserted and counterdie are inserted, leave cutting edge gap, described cutting edge gap is thickness of workpiece 7%～20%.
Further, the upper table face of described press and the length dimension of lower table face are Workpiece length 50～150%; The distance of described two press columns between Workpiece length direction is than the large 50～300mm of size of upper table face and lower table face.
Further, the cutting edge that described patrix is inserted is that point contacts with workpiece.
Further, between the tangent line of the cutting edge that described patrix is inserted corresponding contact point on the tangent line of any point and workpiece sideline, have angle α, angle α is 0.5 °～35 °.
Further, described feeding device, blanking device and conveyer are arranged at respectively a press side parallel with Workpiece length direction; To realize the loading and unloading direction of workpiece on press as a side parallel with Workpiece length, effectively shorten the distance of transmitting between press.
Further, the 5-20% that the rated operating pressure that described patrix is inserted is theoretical stamping press; The computing formula of described theoretical stamping press is: P=KLt τ, and wherein, P is theoretical stamping press, unit is N; L is that workpiece separates peripheral length, and unit is mm; T is the thickness of workpiece, and unit is mm; τ is Tensile strength, and unit is MPa; K is coefficient, and value is 1.3.
The present invention includes following advantage: (a) the present invention makes full use of a contact cutting edge and large cutting edge gap, significantly reduces the feature of trimming and piercing die stamping press, significantly reduces the specified press tonnage of production line, reaches the effect reducing costs.(b) press stamping press of the present invention is only the 5-20% of theoretical stamping press, significantly reduces the cost of investment of forcing press.For example, adopt this production line to produce a common B post, required forcing press is only 50 tons.(c) press of the present invention is when stamping press reduces, and mesa dimensions also significantly reduces, and workpiece is in the non-processing part of each station, with the hands-off condition of press column under, can hang press table.For example, can adopt the common A post of the press production length 2200mm of 3 2m length mesa dimensions.(d), because press tonnage of the present invention is little, produce required energy consumption less, more energy-conservation.(e) because press tonnage of the present invention is little, stroke is long, the noise when punching press is less, more environmental protection.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of described hot forming diel.
Fig. 3 is the schematic diagram that cutting edge that described patrix is inserted contacts with workpiece section point.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1: described hot forming deburring production line comprises press 1, upper table face 1-1, lower table face 1-2, feeding device 2, blanking device 3, material loading frame 4, rewinding frame 5, conveyer 6, upper bolster 7-1, patrix insert 7-2, counterdie insert 7-3, die shoe 7-4, workpiece 17 etc.
As shown in Figure 1, the present invention includes material loading frame 4 and rewinding frame 5, between material loading frame 4 and rewinding frame 5, set gradually 2～4 press 1, in material loading frame 4 one sides, feeding device 2 is set, in rewinding frame 5 one sides, blanking device 3 is set, conveyer 6 is set between two press 1;
Described press 1 is hydraulic press or servo press, can be within the scope of rated pressure stroke stamped workpieces to set under the operating pressure set and this pressure, continue acting; The rated operating pressure of described press 1 is 5～20% of theoretical stamping press, and the computing formula of theoretical stamping press is: P=KLt τ, and wherein, P is theoretical stamping press, unit is N; L is workpiece hot forming deburring rear perimeter edge length, and unit is mm; T is the thickness of workpiece, and unit is mm; τ is Tensile strength, and unit is MPa; K is coefficient, and value is 1.3;
Described press 1 comprises upper table face 1-1 and lower table face 1-2, and upper table face 1-1 is connected by press column with lower table face 1-2, between upper table face 1-1 and lower table face 1-2, hot forming diel is installed; The length dimension of the upper table face 1-1 of described press 1 and lower table face 1-2 is Workpiece length 50～150%, and concrete size is adjusted variation according to production line press quantity; In the time that press quantity is more, the technique content of every press deburring, punching is fewer, and required press table and die size are less, and when work is placed on mould, the size that exceeds press bed face is larger; The distance of described two press columns between Workpiece length direction is than the large 50～300mm of the size of work top, during according to the upper and lower workpiece of conveyer, do not interfere with press column the variation that adjusts, in the time realizing upper and lower workpiece by robot, must ensure to work with press column without interference in robot motion's track;
As shown in Figure 2, described hot forming diel comprises upper bolster 7-1, patrix insert 7-2, counterdie insert 7-3 and die shoe 7-4, the counterdie 7-3 that inserts is fixed on die shoe 7-4, the patrix 7-2 that inserts is fixed on upper bolster 7-1, workpiece 17 is positioned at insert 7-2 and counterdie of patrix and inserts between 7-3, and patrix 7-2 underside shape, the counterdie 7-3 upper surface shape of inserting of inserting is consistent with workpiece 17 surface configurations; The insert cutting edge of 7-2 and counterdie of described patrix inserted and left cutting edge gap between the cutting edge of 7-3, the cutting edge gap large 10%～150% of this cutting edge Gap-Ratios tradition diel, according to the difference of workpiece 17 thickness and shape, described cutting edge gap is preferably 7%～20% of workpiece 17 thickness.Because patrix the insert cutting edge gap of the cutting edge Gap-Ratios tradition diel between the cutting edge of 7-3 of the cutting edge of 7-2 and counterdie of inserting is large, thus significantly reduced separate after the insert rollback resistance of 7-2 of patrix, reduced pressure-plate-force requirement.Pressure-plate-force in structure required as 5%～7% of theoretical shearing force in the past, and the present invention is by increasing cutting edge gap, making pressure-plate-force requirement is only 0.5%～5% of theoretical shearing force, thereby makes required number of springs and tonnage still less less, and the manufacturing cost of mould also decreases.
In addition, as shown in Figure 3, insert cutting edge and the workpiece 17 of 7-2 of patrix in the present invention is always and contacts, be that patrix is inserted and had angle α (specifically as shown in Figure 3 between the tangent line of cutting edge corresponding contact point on the tangent line of any point and workpiece 17 sidelines of 7-2, the angle that on workpiece 17 sections, the tangent line PE of certain 1 P and patrix are inserted between the tangent line PF of the upper corresponding contact point of 7-2 is angle α, angle α according to the thickness of workpiece 17, shape, deburring length and change, is preferably 0.5 °～35 °); Due to patrix insert the blade shape of 7-2 and the surface configuration of workpiece 17 inconsistent, and between the two, there is angle α, thus, patrix is inserted 7-2 while contacting with workpiece 17, due to the existence of angle α, the insert cutting edge of 7-2 of patrix separates workpiece 17 gradually in descending process, and it is only the 5-20% of theoretical stamping press that workpiece 17 separates required stamping press.Because stamping press requires significantly to reduce, reduce investment and the instructions for use of press required for the present invention, and also less to the insert cutting edge impulsive force of 7-2 of patrix.
As shown in Figure 1, described feeding device 2, blanking device 3 and conveyer 6 adopt manual and/or automatic mode, and automated manner is 5 axle standard robotic preferably, increase flexible, according to the length difference of transmission range, can further transfer belt, the servicing unit such as Shuttling trolley or lubricating substance platform.
Hot forming deburring production line of the present invention, be mainly used in workpiece to carry out deburring, punching, before using this production line, workpiece must be through heat processing technique, heat-complete drop stamping-quench hot at heating furnace, thereby obtain meeting the workpiece of mechanical property and shape of product requirement.
Concrete hot forming deburring technique comprises the steps:
(1) feeding device 2 is delivered to press 1 by the workpiece 17 through heat processing technique by material loading frame 4, and press 1 drives the upper bolster 7-1 of hot forming diel descending, carries out deburring, punching; Conveyer 6 is for being sent to next press 1 by the workpiece 17 after last press 1 deburring; The rated operating pressure of described press 1 is 5～20% of theoretical stamping press, and the computing formula of theoretical stamping press is: P=KLt τ, and wherein, P is theoretical stamping press, unit is N; L is workpiece hot forming deburring rear perimeter edge length, and unit is mm; T is the thickness of workpiece, and unit is mm; τ is Tensile strength, and unit is MPa; K is coefficient, and value is 1.3;
(2) blanking device 3 is for being sent to rewinding frame 5 by the workpiece 17 after press 1 deburring, punching; Feeding device 2, conveyer 6 and blanking device 3 are in workpiece transfer process, and the loading and unloading direction of workpiece on press is a side parallel with Workpiece length, can effectively shorten the distance of transmitting between press.
Claims (6)
1. a hot forming deburring production line, comprise material loading frame (4) and rewinding frame (5), it is characterized in that: between described material loading frame (4) and rewinding frame (5), set gradually 2～4 press (1), in material loading frame (4) one sides, feeding device (2) is set, in rewinding frame (5) one sides, blanking device (3) is set, conveyer (6) is set between two press (1); Described press (1) comprises upper table face (1-1) and lower table face (1-2), upper table face (1-1) is connected by press column with lower table face (1-2), between upper table face (1-1) and lower table face (1-2), hot forming diel is installed; Described hot forming diel comprises that upper bolster (7-1), patrix are inserted (7-2), counterdie is inserted (7-3) and die shoe (7-4), counterdie insert (7-3) be fixed on die shoe (7-4), patrix insert (7-2) be fixed on upper bolster (7-1), workpiece (17) is positioned at that patrix is inserted (7-2) and counterdie is inserted between (7-3), and patrix (7-2) underside shape, counterdie (7-3) upper surface shape of inserting of inserting is consistent with workpiece (17) surface configuration; Insert cutting edge and the counterdie of (7-2) of described patrix inserted and left cutting edge gap between the cutting edge of (7-3), and described cutting edge gap is 7%～20% of workpiece (17) thickness.
2. hot forming deburring production line as claimed in claim 1, is characterized in that: the upper table face (1-1) of described press (1) and the length dimension of lower table face (1-2) are Workpiece length 50～150%; The distance of described two press columns between Workpiece length direction is than the large 50～300mm of size of upper table face (1-1) and lower table face (1-2).
3. hot forming deburring production line as claimed in claim 1, is characterized in that: insert cutting edge and the workpiece (17) of (7-2) of described patrix contacts for point.
4. hot forming deburring production line as claimed in claim 3, is characterized in that: described patrix is inserted and had angle α between the tangent line of cutting edge corresponding contact point on the tangent line of any point and workpiece (17) sideline of (7-2), and angle α is 0.5o～35o.
5. hot forming deburring production line as claimed in claim 1, is characterized in that: described feeding device (2), blanking device (3) and conveyer (6) are arranged at respectively press (1) side parallel with workpiece (17) length direction.
6. hot forming deburring production line as claimed in claim 1, is characterized in that: the described patrix 5-20% that the rated operating pressure of (7-2) is theoretical stamping press that inserts; The computing formula of described theoretical stamping press is: P=KLt τ, and wherein, P is theoretical stamping press, unit is N; L is that workpiece (17) separates peripheral length, and unit is mm; T is the thickness of workpiece (17), and unit is mm; τ is Tensile strength, and unit is MPa; K is coefficient, and value is 1.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270858.XA CN104056995A (en) | 2014-06-17 | 2014-06-17 | Hot forming trimming process production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410270858.XA CN104056995A (en) | 2014-06-17 | 2014-06-17 | Hot forming trimming process production line |
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| CN104056995A true CN104056995A (en) | 2014-09-24 |
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| CN201410270858.XA Pending CN104056995A (en) | 2014-06-17 | 2014-06-17 | Hot forming trimming process production line |
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- 2014-06-17 CN CN201410270858.XA patent/CN104056995A/en active Pending
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Application publication date: 20140924 |