CN202106031U - Compacting die for inner conical ring formed by powder metallurgy - Google Patents
Compacting die for inner conical ring formed by powder metallurgy Download PDFInfo
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- CN202106031U CN202106031U CN2011201961154U CN201120196115U CN202106031U CN 202106031 U CN202106031 U CN 202106031U CN 2011201961154 U CN2011201961154 U CN 2011201961154U CN 201120196115 U CN201120196115 U CN 201120196115U CN 202106031 U CN202106031 U CN 202106031U
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Abstract
The utility model relates to a compacting die for an inner conical ring formed by powder metallurgy, comprising a compacting female die, an upper punch I, an upper punch II, a lower punch I, a lower punch II and a core rod. After the compacting is completed, the interior shape of the compacting female die is similar to the exterior shape of the upper punch II, and the interior shape of the inner cavity among the upper punch I, the lower punch I and the lower punch II is similar to the exterior shape of a blank of the inner conical ring. The compacting die adopts the power metallurgy process, the powder metallurgy material is directly compacted to be shaped as the blank of the inner conical ring, and then the copper leakage sintering is conducted, so that the blank of the inner conical ring is formed, and further the manufacturing process of the inner conical ring is simplified, the production efficiency and the material utilization ratio are improved, the manufacturing cost is lowered greatly, and the compacting die is suitable for large batch production of the inner conical ring with stable quality, small machining allowance and good strength and performance.
Description
Technical field
The utility model relates to engine mission parts manufacturing technology field, specifically relates to the press-moulding die of conical ring in a kind of powder metallurgy synchronized.
Background technology
To adopt the high-quality steel pipe be raw material to conical ring in the existing engine mission synchronized, produces inner cone circulation layer spare through mechanical processing technique again, existence not enough as follows:
(1), the body upper edge circumference of interior conical ring is evenly distributed with 3 concave stations, 3 circular holes, these 3 circular holes and lock pin form interference fit, on 3 concave stations, also are uniform-distribution with 3 flat holes.Above-mentioned concave station, circular hole and flat Kong Jun form through machining.Particularly the processing in 3 flat holes is very loaded down with trivial details, must adopt the high-precision processing center to process, and production efficiency is very low and waste a large amount of machining periods.
(2), the junction in interior equally distributed 3 the concave station bottom surfaces of circumference, conical ring body upper edge and 3 flat holes is a wedge angle; Also can't be machined into rounded corner; Part after the machining can only be removed burr simply with file; Remove assembly performance and the outward appearance that does not influence product only because of burr, cause the user to complain.
(3), the junction of interior equally distributed 3 concave station bottom surfaces of circumference, conical ring body upper edge and concave station axial sides is a wedge angle; Also can't be processed into fillet with common mechanical processing technique, the wedge angle that the part after the machining exists because of this junction can reduce the intensity of product because of sharp angle effect.
(4), the inside and outside conical surface of interior conical ring will reach instructions for use through the machining of precision, die cavity can only be circular in the steel pipe that blank uses, and has strengthened the allowance of machining, causes stock utilization to cross low a large amount of machining periods of having wasted.
(5), in a word, the mechanical processing technique of existing interior conical ring is complicated, needs a large amount of process equipment and machining period; And production efficiency is low; Stock utilization is low, has improved manufacturing cost greatly, also is difficult to produce in enormous quantities the interior conical ring product of steady quality, function admirable.
(6), up to the present, also do not occur in the prior art utilizing powder metallurgical technique, powdered metallurgical material is directly formed in the compacting tool set of conical ring.
The utility model content
The utility model technical problem to be solved is the compacting tool set that conical ring in a kind of powder metallurgy is provided to above-mentioned deficiency; This compacting tool set adopts powder metallurgical technique, is interior conical ring pressed compact with the direct compression moulding of powdered metallurgical material, processes interior conical ring blank through oozing the copper sintering again; Thereby the manufacturing process of conical ring in simplifying; Enhance productivity and stock utilization, reduce manufacturing cost greatly, be applicable to production in enormous quantities steady quality, the interior conical ring that allowance is little, strength character is good.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
The compacting tool set of conical ring comprises die mould former, upper punch I, upper punch II bottom punch I, bottom punch II and plug in a kind of powder metallurgy; When being in state of charge, the interior type of said die mould former and form the interior die cavity of an annular in the die mould former between the plug external form at die cavity center, in this die cavity with form matched in clearance by bottom punch I and the assembled external form of a plurality of bottom punch II; During compression moulding, upper punch I and upper punch II are to lower slider, and the external form bottom of upper punch I gets into the inner chamber type top of die mould former, and the flat boss on bottom punch II top stretches in the flat hole on the upper punch I simultaneously, and the two forms matched in clearance; And move downward by upper punch II extruding plug, make the bottom external form of upper punch II get into the interior die cavity top of bottom punch I, the two forms matched in clearance; After compacting is accomplished, close in the external form of the interior type of the external form of the interior type of die mould former and upper punch II and the interior die cavity between upper punch I, bottom punch I and the bottom punch II and interior conical ring blank.
Said die mould former, die cavity is cylindrical die cavity in it; Said plug, its external form are cylindrical structural; Said bottom punch I, die cavity is a cylindrical hole in it, corresponding setting with the plug external form, the two forms matched in clearance during assembling; Its external form is to be interconnected by a plurality of radial grooves that are equally spaced along circumference and extend vertically and a plurality of radial protrusion to form, and this radial groove and radial protrusion are provided with at interval; The circumference equidistance is provided with a plurality of axial projection or axial notch in the upper edge, upper surface of bottom punch I; Said bottom punch II, its quantity is identical with the quantity of the radial groove that the bottom punch I is provided with; The medial surface of this bottom punch II and the corresponding setting of radial groove on the bottom punch I, the two forms matched in clearance during assembling, simultaneously, and itself and the assembled external form of bottom punch I, with the corresponding setting of interior die cavity of die mould former, the two forms matched in clearance again; The top of this bottom punch II is provided with a flat boss, the corresponding setting of interior die cavity in the flat hole on the external form of this flat boss and the upper punch I, and the two forms matched in clearance during compression moulding; Said upper punch I, type is a cylindrical hole in it, with the corresponding setting of cylindrical cylindrical on upper punch II top, the two forms matched in clearance; The corresponding setting of cylindrical die cavity of its external form and die mould former, the two forms matched in clearance; The cylindrical position of said upper punch I lower surface is provided with annular chamfer; Said upper punch II, its external form are followed successively by the face of cylinder, the conical surface and the following face of cylinder from top to bottom.
The axial height of the annular chamfer on the said upper punch I lower surface is X=0～2mm, and radial width is W=0～1.5mm; The inner peripheral surface of this annular chamfer is the conical surface, and the angle between the above-mentioned conical surface and the horizontal plane is α=1 °～80 °.
Flat hole on the said upper punch I is a plurality of and the same circumference in edge evenly distributes, and the quantity in this flat hole is identical with the quantity of flat boss; The junction of above-mentioned flat hole and upper punch I lower surface is flat Hole chamfering, and the shape and the annular chamfer of this flat Hole chamfering are identical.
Said upper punch II is uniform-distribution with the counterbore and the through hole of a plurality of connections along same circumference, and the conical surface that which is provided with and the angle between the central axis are β=0.1 °～15 °.
The bottom cylindrical of said bottom punch I is provided with base.
The lower surface of said bottom punch I is provided with locating slot.
The axial projection on the said bottom punch I or the shape of cross section of axial notch are any in circle, prismatic, square, the round dot.
The junction of flat boss on the said bottom punch II and bottom punch II body is a rounded corner; Bottom at bottom punch II body is provided with holder.
Be provided with a step in the middle of the external form of said die mould former.
The junction of the interior cavity surface end face upper and lower with it of said die mould former is a rounded corner, and the radius of this rounded corner is R0.01～5mm.
The joint of the cylindrical cylindrical end face upper and lower with it of said plug is a rounded corner, and the radius of this rounded corner is R0.01～5mm.
The utlity model has following advantage and good effect: the utility model is applied to powder metallurgical technique, and can make the direct compression moulding of powdered metallurgical material is interior conical ring blank.According to interior conical ring service condition and powder metallurgical technique characteristics, adopt special mould design, thereby make the inner cone ring structure of compression moulding more reasonable.For example: 3 the concave station bottom surfaces on the interior conical ring and the rounded corner of junction, 3 flat holes, by the compacting tool set straight forming.The junction of 3 concave station bottom surfaces of interior conical ring and concave station axial sides is directly formed to rounded corner by compacting tool set; 3 concave stations of interior conical ring are by compacting tool set straight forming, machining again; The endoporus of interior conical ring blank adopts the compacting tool set straight forming to go out the conical surface, reduces machine-finish allowance; 3 orifice region on interior conical ring finished product will be oozed copper, for conveniently oozing the operation of process for copper, ooze in the lower surface of interior conical ring copper zone with bottom punch I straight forming 3 placements ooze the mark of copper billet, to prevent misplacing the position with oozing copper billet.In a word; The utlity model has simplified manufacturing technique, operation is simple and reliable, enhances productivity and stock utilization; Reduce manufacturing cost greatly, be applicable to advantages such as the inner cone ring quality of producing in enormous quantities and producing is stable, machining accuracy is high, strength character is good.
Description of drawings
Fig. 1 is interior conical ring compacting tool set charging sketch map;
Fig. 2 a is an interior conical ring compacting tool set moulding sketch map at the end; Fig. 2 b is the cutaway view of Fig. 2 a along E-E line direction; Fig. 2 c is the cutaway view of Fig. 2 a along F-F line direction;
Fig. 3 is the axial cutaway view of die mould former;
Fig. 4 a is the upward view of upper punch I; Fig. 4 b is the cutaway view of Fig. 4 a along Y-Y line direction; Fig. 4 c is a N portion enlarged drawing in the upper punch I;
Fig. 5 a is the axial cutaway view of upper punch II; Fig. 5 b is the vertical view of Fig. 5 a;
Fig. 6 a is the axial cutaway view of bottom punch I; Fig. 6 b is the vertical view of Fig. 6 a;
Fig. 7 a is the side view of bottom punch II; Fig. 7 b is the vertical view of Fig. 7 a;
Fig. 8 is the axial cutaway view of plug;
Fig. 9 a is by the structural representation of the interior conical ring blank of compacting tool set straight forming among Fig. 2 a; Fig. 9 b is the axial cutaway view of interior conical ring blank; Fig. 9 c is the enlarged drawing at I place among Fig. 9 b; Fig. 9 d is the enlarged drawing at II place among Fig. 9 b; Fig. 9 e is the cutaway view of Fig. 9 a along K-K line direction.
Description of symbols among the figure:
1, die mould former; 11, cylindrical die cavity; 12, step; 13, rounded corner; 14, rounded corner;
2, upper punch I; 21, holder; 22, flat hole; 221, flat Hole chamfering; 23, centre bore; 24, chamfering;
3, upper punch II; 31, counterbore; 32, the conical surface; 33, through hole;
4, bottom punch I; 41, cylindrical hole; 42, base; 43, locating slot; 44, radial protrusion; 45, radial groove; 46, axial projection or axial notch;
5, bottom punch II; 51, flat boss; 52, bottom punch II body; 53, holder; 54, rounded corner;
6, plug; 61, counterbore; 62, centre bore; 63, rounded corner; 64, rounded corner;
7, pulverous powdered metallurgical material;
8, interior conical ring blank; 81, blank body; 811, upper surface; 812, lower surface; 82, concave station; 821, concave station rounded corner; 83, flat hole; 831, flat hole circle chamfering; 84, ooze the copper mark; 85, the conical surface; 86, the face of cylinder on top; 87, the face of cylinder of bottom.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.
One, the concrete structure of interior conical ring compacting tool set: with reference to Fig. 1-Fig. 8.
The compacting tool set of conical ring comprises die mould former 1, upper punch I 2, upper punch II 3, bottom punch I 4, bottom punch II 5 and plug 6 in a kind of powder metallurgy, wherein:
(1), the die mould former, as shown in Figure 3, die cavity is cylindrical die cavity 11 in it, the interior cavity surface of die mould former 1 and the junction of upper and lower end face are rounded corner 13,14, the radius of this rounded corner 13,14 is R0.01～5mm.In the middle of the external form of die mould former 1, be provided with step 12, be used for the die mould former is fixed on the press mould bases.
The cylindrical die cavity 11 of said die mould former forms matched in clearance with the external form of upper punch I and by bottom punch I and three common assembled external forms of bottom punch II when assembling.
(2) upper punch is assembled by upper punch I 2 and upper punch II 3, wherein:
Said upper punch I, shown in Fig. 4 a, Fig. 4 b, Fig. 4 c, die cavity is a cylindrical hole 23 in it, with the corresponding setting of cylindrical cylindrical on upper punch II top, the two forms matched in clearance during assembling; The cylindrical die cavity 11 corresponding settings on its external form and die mould former 1 top, the two forms matched in clearance during compression moulding.The top of said upper punch I cylindrical is provided with base 21, is used to be fixed on the press mould bases.
Shown in Fig. 4 a; The same circumference in said upper punch I upper edge is evenly distributed with 3 flat holes 22 vertically; Above-mentioned flat hole 22 is flat Hole chamfering 221 with the junction of upper punch I lower surface, and the shape and the annular chamfer on the compacting tool set 24 of this flat Hole chamfering 221 are identical.During assembling, the corresponding setting of external form of the flat boss in the flat hole on die cavity and the bottom punch II, the two forms matched in clearance.The quantity of the flat boss 51 on the quantity in said flat hole 22 and the bottom punch II is identical.
Shown in Fig. 4 c, be provided with annular chamfer 24 at the cylindrical position of upper punch I lower surface, the axial height of this annular chamfer is X=0～2mm, radial width is W=0～1.5mm; The inner peripheral surface of this chamfering 24 is the conical surface, and the angle between this conical surface and the horizontal plane is α=1 °～80 °.The effect of this chamfering 24 is: be used for the annular chamfer structure that the platform at cylindrical position, conical ring blank upper surface is connected with frustum in the moulding.
Said upper punch II, shown in Fig. 5 a, Fig. 5 b, its external form is provided with the face of cylinder, the conical surface 32 and the following face of cylinder from top to bottom successively; Angle between this conical surface 32 and its central axis is β=0.1 °～15 °, and it is used for the endoporus conical surface of conical ring blank in the moulding, the allowance when reducing machining.The same circumference in upper punch II 3 edges is uniform-distribution with the counterbore 31 and through hole 33 of a plurality of connections, can be 2～6, is 4 in the present embodiment, and its effect is that the upper punch II is installed on the mould bases.
(3) bottom punch is assembled by bottom punch I 4 and three bottom punch II 5, and the external form after its assembly unit matches with the corresponding setting of interior type, the shape of die mould former 1, and the two forms matched in clearance during assembling.Wherein:
Said bottom punch I; Shown in Fig. 6 a, Fig. 6 b; Die cavity is a cylindrical hole 41 in it, and its external form is to be interconnected by a plurality of radial grooves that are equally spaced along circumference and extend vertically 45 and a plurality of radial protrusions 44 to form, and said radial groove 45 is provided with radial protrusion 44 at interval.The bottom cylindrical of this bottom punch I 4 is provided with base 42, on the press mould bases.
Know by Fig. 6 a; Upper edge, the upper surface circumference equidistance of said bottom punch I 4 is provided with a plurality of axial projection or axial notch 46; Its effect is: 3 orifice region on interior conical ring finished product will be oozed copper; For conveniently oozing the operation of process for copper, ooze in the upper surface of interior conical ring copper zone with the upper punch straight forming 3 placements ooze the mark of copper billet, prevent to misplace the position with oozing copper billet.Specifically, axial projection on the compacting tool set or axial notch structure, the copper billet that oozes that can corresponding compression moulding is labeled as axial notch or axial projection, and its shape of cross section can be any shapes such as circle, prismatic, square, round dot.
The interior die cavity of said bottom punch I 4 is a cylindrical hole 41, its corresponding setting with the plug external form, and the two forms matched in clearance during assembling; With the corresponding setting of the bottom external form of upper punch II, the two formed matched in clearance when compacting was accomplished again.The top external form of said bottom punch I 4 respectively with the bottom of die mould former in the corresponding setting of interior type on type and bottom punch II top, form matched in clearance respectively.On the lower surface of bottom punch I, be provided with radial detents 43.
Said bottom punch II is shown in Fig. 7 a, Fig. 7 b.Its top is flat boss 51, and center and bottom are bottom punch II body 52; The junction of this flat boss and bottom punch II body 52 is a rounded corner 54.The corresponding setting of interior type of die cavity in the flat hole on the external form of this flat boss and the bottom punch I.Bottom at bottom punch II body 52 is provided with holder 53, on the press mould bases.
The medial surface of said bottom punch II is the medial surface of bottom punch II body 52, and with the radial groove 45 corresponding settings that the bottom punch I is provided with vertically, the two structure matches.During assembling; The medial surface of three bottom punch II respectively with the bottom punch I on three radial grooves 45 match; Like this by the lateral surface of three bottom punch II and the good external form of the common assembly unit of external form of bottom punch I, both, when assembling, formed matched in clearance again with the corresponding setting of interior die cavity of die mould former.During compression moulding, the flat boss on three bottom punch II tops stretches in three flat holes on the upper punch I, and the two forms matched in clearance.
(4) plug, as shown in Figure 8, its external form is a cylindrical structural, and the cylindrical cylindrical of this plug and the joint of upper and lower end face are rounded corner 63,64, and the radius of this rounded corner is R0.01～5mm.This plug 6 is provided with the counterbore 61 and centre bore 62 of connection.
Two, the course of work of interior conical ring compacting tool set: with reference to Fig. 1, Fig. 2 a, Fig. 2 b, Fig. 2 c.
Be installed in die mould former 1, upper punch I 2, upper punch II 3, bottom punch I 4, bottom punch II 5 and plug 6 on the mould bases, this mould bases is fixed on the forcing press.Form the interior die cavity of an annular between the plug external form at die cavity center in the interior type of die mould former 1 and in the die mould former; From stretching into down in the above-mentioned annular the die cavity, and form die cavity in the charging by the common assembled bottom punches of bottom punch I and three bottom punch II 4.And be matched in clearance between all mould parts of die cavity in the formation charging, can be free to slide each other.During compression moulding, matched in clearance is formed at the top of die cavity in the external form bottom of upper punch I 2 and the above-mentioned charging, can be free to slide each other, and upper punch II 3 is descending with upper punch I 2, and extruding plug 6 is descending, and forms matched in clearance with the bottom punch I.After compacting is accomplished, between the interior type and upper punch I 2, bottom punch I 4 and bottom punch II 5 of the interior type of die mould former 1 and upper punch II 3, a type and the akin interior die cavity of the external form of interior conical ring blank 8, promptly interior conical ring blank cavity in it have been formed.Specifically, the interior type of above-mentioned upper punch II 3 is to be made up of the face of cylinder and the conical surface between the two under the last face of cylinder of part and the part.
Before the charging, upper punch I, upper punch II be positioned at die mould former 1 directly over, and its bottom is uncovered corresponding with the upper end of interior die cavity.After filling up pulverous powdered metallurgical material 7 in the die cavity in above-mentioned charging; Upper punch I, upper punch II are descending with the forcing press top shoe; The upper punch II at first contacts with plug 6, and extruding plug 6 is descending, behind the descending segment distance; The bottom of upper punch I gets into the top of the cylindrical die cavity 11 of die mould former, and upper punch II bottom gets into the top of bottom punch I.The regulation pressure lower compression powdered metallurgical material to assigned position; At this moment, three of bottom punch II top flat boss have stretched in three flat holes of upper punch I lower end.Die mould former 1 is descending then, and upper punch I, upper punch II are up, and the bottom punch II is descending, and the interior conical ring blank 8 after the moulding is deviate from from die mould former 1, accomplishes a production process.Move in circles successively.
What Fig. 9 a, Fig. 9 b were represented is the structural representation by the interior conical ring blank of this compacting tool set straight forming.Conical ring blank 8 comprises blank body 81, evenly distributes and be connected the concave station 82 on the blank body and be arranged on the flat hole 83 on the concave station along circumference in said.Interior conical ring lower surface 812 has in 3 centre bore zones and prevents to ooze that copper billet misplaces the position oozes copper mark 84.Wherein: the junction of concave station bottom surface and concave station axial sides is the concave station rounded corner 821 by the mould straight forming, shown in Fig. 9 e.Said flat hole 83 is flat hole circle chamfering 831 with the junction of concave station bottom surface, shown in Fig. 9 c, Fig. 9 b.
Shown in Fig. 9 b, the interior die cavity of said interior conical ring blank is to be made up of the face of cylinder 86 on top, the conical surface 85 at middle part and the face of cylinder 87 of bottom; Angle between the conical surface 85 of center and its center axially bored line is γ=0.1 °～15 °.
Shown in Fig. 9 d, Fig. 9 b; The cylindrical position of the upper surface 811 of interior conical ring blank is provided with the annular chamfer structure that platform is connected with frustum; The width of its platform is L=0～1.5mm; Its frustum height vertically is H=0～2mm, and the angle between this frustum and the horizontal plane is β=1 °～80 °.
Interior conical ring blank 8 needs through turning the end face that oozes the copper mark is arranged; The turning endoporus conical surface; And process with 3 holes of lock pin interference fit and Hole chamferings thereof, in 3 transverse holes of 3 flat holes place's processing oozing the copper zone, just can obtain at last satisfactory in the conical ring finished product.
What the accompanying drawing of the utility model was represented is to be used for moulding to have 3 concave stations, 3 interior conical ring compacting tool sets that ooze the copper mark.Compacting tool set has 4 concave stations and 4 and oozes copper mark or 6 concave stations and 6 interior conical rings that ooze the copper mark if will be used for moulding; That is to say; Interior conical ring fovea superior platform and quantity selection in addition between 2-10 of oozing the copper mark will be done the correspondence adjustment to the compacting tool set structure according to the quantity of interior conical ring fovea superior platform.Specifically; Only need following the mould structure of change to get final product, that is: the number of the number of radial groove on the bottom punch I and radial protrusion, bottom punch II, and the bottom punch II on the corresponding upper punch I of flat boss on quantity and the axial projection on the bottom punch I or the number of axial notch etc. in flat hole.
Claims (12)
1. the compacting tool set of the interior conical ring of powder metallurgy is characterized in that,
Comprise die mould former (1), upper punch I (2), upper punch II (3), bottom punch I (4), bottom punch II (5) and plug (6);
When being in state of charge; The interior type of said die mould former and form the interior die cavity of an annular in the die mould former between the plug external form at die cavity center, in this die cavity with form matched in clearance by bottom punch I (4) and the assembled external form of a plurality of bottom punch II (5);
During compression moulding; Upper punch I (2) and upper punch II (3) are to lower slider; The external form bottom of upper punch I (2) gets into the inner chamber type top of die mould former (1), and the flat boss (51) on bottom punch II (5) top stretches in the flat hole (22) on the upper punch I simultaneously, and the two forms matched in clearance; And move downward by upper punch II (3) extruding plug (6), make the bottom external form of upper punch II (3) get into the interior die cavity top of bottom punch I (4), the two forms matched in clearance;
After compacting was accomplished, the type of the type that is positioned at die mould former (1) and the external form of upper punch II (3) and the die cavity between upper punch I (2), bottom punch I (4) and the bottom punch II (5) was close with the external form of conical ring blank (8).
2. the compacting tool set of conical ring is characterized in that in a kind of powder metallurgy as claimed in claim 1,
Said die mould former (1), die cavity is cylindrical die cavity (11) in it;
Said plug (6), its external form are cylindrical structural;
Said bottom punch I (4), die cavity is cylindrical hole (41) in it, with the corresponding setting of plug (6) external form, the two forms matched in clearance during assembling; Its external form is to be interconnected by a plurality of radial grooves (45) that are equally spaced along circumference and extend vertically and a plurality of radial protrusion (44) to form, and this radial groove and radial protrusion are provided with at interval; The circumference equidistance is provided with a plurality of axial projection or axial notch (46) in the upper edge, upper surface of bottom punch I (4);
Said bottom punch II (5), its quantity is identical with the quantity of the radial groove (45) that the bottom punch I is provided with; The corresponding setting of radial groove (45) on the medial surface of this bottom punch II and the bottom punch I (4); The two forms matched in clearance during assembling, simultaneously, and itself and the assembled external form of bottom punch I; With the corresponding setting of interior die cavity of die mould former (1), the two forms matched in clearance again; The top of this bottom punch II (5) is provided with a flat boss (51), the corresponding setting of interior die cavity in the flat hole (22) on the external form of this flat boss (51) and the upper punch I (2), and the two forms matched in clearance during compression moulding;
Said upper punch I (2), type is cylindrical hole (23) in it, with the corresponding setting of cylindrical cylindrical on upper punch II (3) top, the two forms matched in clearance; The corresponding setting of cylindrical die cavity (11) of its external form and die mould former (1), the two forms matched in clearance; The cylindrical position of said upper punch I (2) lower surface is provided with annular chamfer (24);
Said upper punch II (3), its external form are followed successively by the face of cylinder, the conical surface (32) and the following face of cylinder from top to bottom.
3. the compacting tool set of conical ring is characterized in that the axial height of the annular chamfer (24) on said upper punch I (2) lower surface is X=0～2mm in a kind of powder metallurgy as claimed in claim 2, and radial width is W=0～1.5mm; The inner peripheral surface of this chamfering (24) is the conical surface, and the angle between this conical surface and the horizontal plane is α=1 °～80 °.
4. the compacting tool set of conical ring is characterized in that in a kind of powder metallurgy as claimed in claim 3, and the flat hole (22) on the said upper punch I (2) evenly distributes for a plurality of and the same circumference in edge, and the quantity in this flat hole is identical with the quantity of flat boss (51); Above-mentioned flat hole (22) is flat Hole chamfering (221) with the junction of upper punch I lower surface, and the shape of this flat Hole chamfering and annular chamfer (24) are identical.
5. the compacting tool set of conical ring in a kind of powder metallurgy as claimed in claim 2; It is characterized in that; Said upper punch II (3) is uniform-distribution with the counterbore (31) and the through hole (33) of a plurality of connections along same circumference, and the angle between the conical surface that which is provided with (32) and the central axis is β=0.1 °～15 °.
6. the compacting tool set of conical ring is characterized in that the bottom cylindrical of said bottom punch I (4) is provided with base (42) in a kind of powder metallurgy as claimed in claim 2.
7. the compacting tool set of conical ring is characterized in that the lower surface of said bottom punch I (4) is provided with locating slot (43) in a kind of powder metallurgy as claimed in claim 6.
8. the compacting tool set of conical ring is characterized in that in a kind of powder metallurgy as claimed in claim 7, and the shape of cross section of axial projection on the said bottom punch I (4) or axial notch (46) is any in circle, prismatic, square, the round dot.
9. the compacting tool set of conical ring is characterized in that in a kind of powder metallurgy as claimed in claim 2, and the flat boss (51) on the said bottom punch II (5) is rounded corner (54) with the junction of bottom punch II body (52); Be provided with holder (53) in the bottom of bottom punch II body (52).
10. the compacting tool set of conical ring is characterized in that in a kind of powder metallurgy as claimed in claim 2, is provided with a step (12) in the middle of the external form of said die mould former (1).
11. the compacting tool set of conical ring is characterized in that the junction of the interior cavity surface end face upper and lower with it of said die mould former (1) is rounded corner (13,14) in a kind of powder metallurgy as claimed in claim 10, the radius of this rounded corner (13,14) is R0.01～5mm.
12. the compacting tool set of conical ring is characterized in that the joint of the cylindrical cylindrical end face upper and lower with it of said plug (6) is rounded corner (63,64) in a kind of powder metallurgy as claimed in claim 2, the radius of this rounded corner (63,64) is R0.01～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201961154U CN202106031U (en) | 2011-05-31 | 2011-05-31 | Compacting die for inner conical ring formed by powder metallurgy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201961154U CN202106031U (en) | 2011-05-31 | 2011-05-31 | Compacting die for inner conical ring formed by powder metallurgy |
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| CN202106031U true CN202106031U (en) | 2012-01-11 |
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| CN2011201961154U Expired - Fee Related CN202106031U (en) | 2011-05-31 | 2011-05-31 | Compacting die for inner conical ring formed by powder metallurgy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071801A (en) * | 2013-02-05 | 2013-05-01 | 江西稀有稀土金属钨业集团有限公司 | Mold and method for pressing hard alloy formed press blanks with double inclined holes |
| CN117655323A (en) * | 2024-01-29 | 2024-03-08 | 山东富蓝动力科技有限公司 | Powder metallurgy die-casting forming device |
-
2011
- 2011-05-31 CN CN2011201961154U patent/CN202106031U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071801A (en) * | 2013-02-05 | 2013-05-01 | 江西稀有稀土金属钨业集团有限公司 | Mold and method for pressing hard alloy formed press blanks with double inclined holes |
| CN103071801B (en) * | 2013-02-05 | 2015-07-22 | 江西稀有稀土金属钨业集团有限公司 | Mold and method for pressing hard alloy formed press blanks with double inclined holes |
| CN117655323A (en) * | 2024-01-29 | 2024-03-08 | 山东富蓝动力科技有限公司 | Powder metallurgy die-casting forming device |
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