CN214640280U - Powder metallurgy forming die of multistage difference angle piece - Google Patents

Powder metallurgy forming die of multistage difference angle piece Download PDF

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Publication number
CN214640280U
CN214640280U CN202022860511.4U CN202022860511U CN214640280U CN 214640280 U CN214640280 U CN 214640280U CN 202022860511 U CN202022860511 U CN 202022860511U CN 214640280 U CN214640280 U CN 214640280U
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punch
forming
section
effective
hole
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刘醇彬
刘季寰
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Qingzhi Wuxi Powder Casting And Forging Co Ltd
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Qingzhi Wuxi Powder Casting And Forging Co Ltd
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Abstract

The utility model provides a powder metallurgy forming die of different angle piece of multistage, including the differential type bed die of section, take shape plug, take shape next down towards, take shape down two towards, take shape one towards and take shape two towards, take shape the cover establish take shape down two towards, take shape down two towards the cover establish take shape next towards, take shape down towards and set up the differential type bed die of section, set up the differential type chamber of section in the differential type bed die of section, take shape down two towards and take shape down one towards the cover establish the back set up in the differential type chamber of section, take shape two towards go up the cover establish take shape one towards, take shape go up two towards and take shape last one towards the cover establish the back set up in the differential type chamber of section. The utility model discloses a powder metallurgy forming die of multistage difference angle piece has reduced the loaded down with trivial details step to the external shape of multistage difference angle piece base and the poor processing of section, has reduced the technology annoyance that follow-up gross times got rid of, has had the advantage that base body size is stable, the precision is high concurrently, is particularly suitable for in a large number and have steady quality's production concurrently to the poor angle piece base body of multistage, greatly reduced production man-hour and manufacturing cost.

Description

Powder metallurgy forming die of multistage difference angle piece
Technical Field
The utility model relates to an improve powder metallurgy shaping technical field, concretely relates to powder metallurgy forming die of different angle piece of multistage.
Background
With the continuous development of the modern industry, the powder metallurgy has an unprecedented development opportunity' because the powder metallurgy products have the advantages of less cutting and no cutting. The method has the characteristics of energy saving, material saving and high production efficiency, and is suitable for mass production. The use of powder metallurgy parts is increasing, the performance requirements are higher, and structural parts with different shapes are more and more dominant in the market.
Disclosure of Invention
To exist not enough among the prior art, the utility model provides a powder metallurgy forming die of different angle piece of multistage has loaded down with trivial details nature, save material, the high advantage of size precision that reduces machining, especially adapted large batch production. The utility model adopts the technical proposal that:
a powder metallurgy forming die of multistage difference angle piece, wherein: including the differential type female die that takes shape of section, shaping plug, take shape down one dash, take shape down two dash, take shape last one dash and take shape last two dash, take shape on the plug two dash establish take shape down two dash, take shape down two dash the cover establish take shape down one dash, take shape down one dash set up the differential type female die of taking shape, set up the differential type chamber of section in the differential type female die of taking shape, take shape down two dash and take shape down one dash the cover establish the back set up in the differential type chamber of section, take shape two dash the cover establish on the shaping plug, take shape two dash the cover establish take shape last one dash and set up in the differential type chamber of section after taking shape last two dash and take shape last one dash the cover establish.
Preferably, the powder metallurgy forming die of the multi-step angle block, wherein: a first through hole and a second through hole are formed in the level difference cavity surface of the level difference forming female die, and a fourth level difference forming surface is formed between the first through hole and the second through hole.
Preferably, the powder metallurgy forming die of the multi-step angle block, wherein: the forming core rod comprises a tungsten steel effective section and a core rod connecting rod, and the tungsten steel effective section is internally provided with an effective outline part of the forming core rod.
Preferably, the powder metallurgy forming die of the multi-step angle block, wherein: the forming next punch comprises a next punch base and a next punch forming section arranged on the next punch base, the next punch forming section sequentially comprises a next punch escaping section and a forming next punch effective section from bottom to top, the upper end face of the forming next punch effective section is provided with a next punch chamfer surface, the length of the next punch forming section is 40-60 mm, and the length of the forming next punch effective section is 10-30 mm.
Preferably, the powder metallurgy forming die of the multi-step angle block, wherein: the shaping lower second punch comprises a lower second punch base, a lower second punch forming section and a lower second punch forming core rod through hole, the lower second punch forming section comprises a lower second punch material escaping section and a lower second punch effective section, the lower second punch effective section is arranged on the lower second punch material escaping section, the end face of the lower second punch effective section is provided with a lower second punch first chamfer surface, the lower second punch forming core rod through hole comprises a lower second punch effective through hole arranged in the middle of the lower second punch effective section and a lower second punch material escaping hole arranged in the middle of the lower second punch material escaping section, and the outer end of the lower second punch effective through hole is provided with a lower second punch second chamfer surface.
Preferably, the powder metallurgy forming die of the multi-step angle block, wherein: the former dashes and includes that the last dashes the base and set up the last section of taking shape that dashes on the last base that dashes, the last section of taking shape that dashes includes that the last dashes escapes the material section and sets up the last effective section that dashes on the last material section that escapes, last dashes effective section up end and sets up the next chamfer face of dashing and get, last dashing and set up in the middle of the base and dashing and run through the dysmorphism hole.
Preferably, the powder metallurgy forming die of the multi-step angle block, wherein: the two-punch forming device is characterized in that the two-punch forming device comprises an upper two-punch base, an upper two-punch forming section and an upper two-punch forming mandrel through hole, the upper two-punch forming section comprises an upper two-punch escaping section and an upper two-punch effective section arranged on the upper two-punch escaping section, the top end face of the upper two-punch effective section is provided with an upper two-punch first chamfer surface for taking, the upper two-punch forming mandrel through hole comprises an upper two-punch effective through hole arranged in the middle of the upper two-punch effective section and an upper two-punch escaping hole arranged in the middle of the upper two-punch escaping section, and the end face of the upper two-punch effective through hole is provided with an upper two-punch second chamfer surface for taking.
The invention has the advantages that: the utility model discloses a powder metallurgy forming die of multistage difference angle piece, when producing multistage difference angle piece body, each section poor face that sets for in the multistage difference angle piece body all forms into independent adjustable mould structure in the mould, can carry out the independent adjustment of each section poor distance according to the demand, consequently can be smooth reach the one shot forming target of multistage difference angle piece body and in the shaping next towards, the shaping is two towards, the shaping is first towards, all be equipped with on the shaping in two towards each mould profile with the multistage difference angle piece in the protruding chamfer face that accords with that establishes gets, consequently the chamfer of establishing can take shape simultaneously in the multistage difference angle piece in the forming process, consequently not only a large amount of reduction to the loaded down with trivial details step of multistage difference angle piece body appearance and section poor processing, still reduced the technology vexation that follow-up mao times got rid of; simultaneously because of the utility model discloses an adopted powder metallurgy die forming process, therefore had concurrently advantages such as body size stability, precision height, very suitable to have stable in quality's production to a large amount of the poor angle piece base plate of multistage and concurrently, greatly reduced production man-hour and manufacturing cost.
Drawings
Fig. 1 is a top view of the multi-stage differential angle block of the present invention.
Fig. 2 is a cross-sectional view of the multi-stage differential angle block of the present invention.
Fig. 3 is a detailed view of the part a in fig. 2 according to the present invention.
Fig. 4 is an isometric view of the multi-step angle block of the present invention.
Fig. 5 is a top view of the segment difference type female forming die of the present invention.
Fig. 6 is a schematic diagram of the segment difference type female forming die of the present invention.
Fig. 7 is a cross-sectional view of the forming mandrel of the present invention.
Figure 8 is an isometric view of the next punch being formed in accordance with the present invention.
Figure 9 is a semi-sectional isometric view of the lower punch of the present invention.
Fig. 10 is an isometric view of the first punch forming the present invention.
Fig. 11 is a half-sectional isometric view of the upper punch forming of the present invention.
Fig. 12 is an isometric view of the half section of the forming die assembly of the present invention.
Detailed Description
The invention is further described with reference to the following specific drawings and examples.
Example 1
The multi-stage difference angle block 1 is provided with a cross-shaped main body outline 1-1, the upper end surface of the main body outline is provided with a first stage difference surface 1-2, a second stage difference surface 1-3 which is 1-23-3.5 mm away from the position 2 and is lower than the first stage difference surface, the lower end surface of the cross-shaped main body outline 1-1 is provided with 2 corner block third stage difference surfaces 1-4, 2 corner block fourth stage difference surfaces 1-5 m lower than the corner block third stage difference surfaces 5.1-5.5 m and 1 corner block fifth stage difference surface 1-6 lower than the corner block third stage difference surface 0.3-0.7 mm, a circular through hole 1-7 is arranged in the middle of the first stage difference surface 1-2, a corner block second stage difference surface 1-3, a corner block third stage difference surface 1-4, a corner block fifth stage difference surface 1-6 and a through hole with the depth of 0.5-0.5 mm is arranged at the upper and lower ends of the circular through hole 2, the angle is 20-45 degrees and comprises a chamfer 1-8 of 0.1-0.3 plane section, as can be obviously seen in the isometric schematic diagram of a multi-section angle difference block, if a product is manufactured by adopting a machining mode, not only the machining procedure is complicated, but also the material waste is serious, and the powder metallurgy process can form a product with a nearly final shape, so that the multi-section angle difference block is produced by adopting the powder metallurgy process, has the advantages of reducing the troublesome trouble of machining, saving the material waste, having high size precision and the like, and is very suitable for mass production.
As shown in fig. 1 to 12, the present embodiment provides a powder metallurgy forming die of a multi-stage differential angle block, wherein: including the differential type female die that takes shape 2, the plug that takes shape 3, take shape next towards 4, take shape down two towards 5, take shape last towards 6 and take shape last two towards 7, take shape the plug 3 go up the cover establish take shape down two towards 5, take shape down two towards 5 go up the cover establish take shape next towards 4, take shape down and set up the differential type female die 2 of taking shape on 4, set up the differential type chamber 2-1 of section in the differential type female die 2 of section, take shape down two towards 5 and take shape down and set up in the differential type chamber 2-1 of section after 4 covers establish, take shape two towards 7 covers and establish last towards 6 on the plug that takes shape, take shape two towards 7 go up the cover establish last towards 6, take shape go up two towards 7 and take shape last towards 6 cover and set up in the differential type chamber 2-1 of section.
Wherein: a first through hole 2-3 and a second through hole 2-4 are arranged on the surface of a section difference cavity 2-1 of the section difference forming female die 2, and a fourth section difference forming surface 2-2 is formed between the first through hole 2-3 and the second through hole 2-4.
Wherein: the forming core rod 3 comprises a tungsten steel effective section 3-1 and a core rod connecting rod 3-2, and the tungsten steel effective section 3-1 is internally provided with a forming core rod effective outline part 3-1-1.
Wherein: the forming next punch 4 comprises a next punch base 4-1 and a next punch forming section 4-2 arranged on the next punch base 4-1, the next punch forming section 4-2 sequentially comprises a next punch escaping section 4-2-2 and a forming next punch effective section 4-2-1 from bottom to top, the upper end face of the forming next punch effective section 4-2-1 is provided with a next punch chamfer face 4-2-3, the length of the next punch forming section 4-2 is 40-60 mm, and the length of the forming next punch effective section 4-2-1 is 10-30 mm.
Wherein: the forming lower secondary punch 5 comprises a lower secondary punch base 5-1, a lower secondary punch forming section 5-2 arranged on the lower secondary punch base 5-1 and a lower secondary punch forming core rod through hole 5-3, the lower secondary punch forming section 5-2 comprises a lower secondary punch escape section 5-2-2 and a lower secondary punch effective section 5-2-1 arranged on the lower secondary punch escape section 5-2-2, the end surface of the lower secondary punch effective section 5-2-1 is provided with a lower secondary punch first chamfer surface 5-2-3, the lower secondary punch forming core rod through hole 5-3 comprises a lower secondary punch effective through hole 5-3-1 arranged in the middle of the lower secondary punch effective section 5-2-1 and a lower secondary punch escape hole 5-3-2 arranged in the middle of the lower secondary punch escape section 5-2-2, and the outer end of the lower second punching effective through hole 5-3-1 is provided with a lower second punching second chamfer angle surface 5-3-3.
Wherein: the forming upper punch 6 comprises an upper punch base 6-1 and an upper punch forming section 6-2 arranged on the upper punch base 6-1, the upper punch forming section 6-2 comprises an upper punch escaping section 6-2-2 and an upper punch effective section 6-2-1 arranged on the upper punch escaping section 6-2-2, the upper end face of the upper punch effective section 6-2-1 is provided with a next punch chamfer face 6-2-3, and the middle of the upper punch base 6-1 is provided with an upper punch through special-shaped hole.
Wherein: the forming upper secondary punch 7 comprises an upper secondary punch base 7-1, an upper secondary punch forming section 7-2 and an upper secondary punch forming core rod through hole 7-3, the upper secondary punch forming section 7-2 comprises an upper secondary punch escape section 7-2-2 and an upper secondary punch effective section 7-2-1 arranged on the upper secondary punch escape section 7-2-2, the top end surface of the upper secondary punch effective section 7-2-1 is provided with an upper secondary punch first chamfer surface 7-2-3, the upper secondary punch forming core rod through hole 7-3 comprises an upper secondary punch effective through hole 7-3-1 arranged in the middle of the upper secondary punch effective section 7-2-1 and an upper secondary punch escape hole 7-3-2 arranged in the middle of the upper secondary punch effective section 7-2-2, and the upper secondary punch second chamfer surface 7-3-1 is arranged on the end surface of the upper secondary punch effective through hole 7-3-1 -3.
A section difference cavity 2-1 in a section difference type forming female die 2 is matched with a cross main body profile 1-1 arranged in a section difference angle block 1, the depth of the section difference cavity 2-1 is 5-8 mm, and 2 parts of through holes 2-3 and 2-4 with the same profile as a third section difference surface 1-4 of the angle block and 1 part of through holes 2-3 and 2-4 with the same profile as a fifth section difference surface 1-6 of the angle block are arranged on the section difference cavity 2-1 surface, so that solid powder retained by the through holes is matched with a fourth section difference surface 1-5 of the angle block, and a fourth section difference forming surface 2-2 at the 2 parts is formed.
The effective contour 3-1-1 of the forming core rod is in accordance with the diameter of the circular through hole 1-7 arranged on the multi-section difference angle block 1.
The overall length of the next punch 4 is 85-100 mm, the specific length of the next punch forming section 4-2 is 40-60 mm, the next punching forming section 4-2 is provided with a forming next punching effective section 4-2-1 which is consistent with the outline of a third section differential surface 1-4 of the angle block arranged in the multi-section differential angle block (1) and has the specific length of 10-30 mm, the rest part is a next punching escape section 4-2-2 with the outline 0.1-0.5 smaller than that of the next punching effective section 4-2-1, the end surface of the next punching forming section 4-2 is provided with a next punching chamfer surface 4-2-3 which has the same size with the chamfer 1-8 arranged in the multi-section differential angle block (1) but is convex in shape, the middle of the next punch base 4-1 is provided with a next punch through special-shaped hole 4-1-1 which is 0.2-1 mm larger than the outline of a fifth section difference surface 1-6 of the corner block arranged in the multi-section difference corner block 1.
The whole length of a forming lower secondary punch 5 is 150-170 mm, the specific length of a lower secondary punch forming section 5-2 is 85-110 mm, a forming lower secondary punch effective section 5-2-1 which is in accordance with the outline of a fifth section difference 1-6 of an angle block arranged in a multi-section difference angle block 1 and has the specific length of 10-30 mm is arranged in the lower secondary punch forming section 5-2, the rest parts are lower secondary punch material escape sections 5-2-2 which are 0.1-0.5 smaller than the outline of the forming lower secondary punch effective section 5-2-1, a lower secondary punch first chamfer surface which is in accordance with the size of a chamfer 1-8 arranged in the multi-section difference angle block 1 but has a convex shape is taken as 5-2-3 is arranged in the end surface of the forming lower secondary punch 5-2, a lower secondary punch 2-section forming core rod through hole 5-3 is arranged in the middle of the forming lower secondary punch 5, and the size of the upper section is in accordance with the forming core rod effective outline 2-1-1, specifically, a lower secondary punching effective through hole 5-3-1 with the length of 10-30 mm, a lower secondary punching escape hole 5-3-2 with the size 0.1-0.5 larger than that of the lower secondary punching effective through hole 5-3-1, and a lower secondary punching secondary chamfer surface 5-3-3 which is matched with a chamfer 1-8 in the multi-section difference angle block 1 in size but is convex in shape is arranged on the end face of the lower secondary punching effective through hole 5-3-1.
The length of the whole upper punch 6 is 60-75 mm, the length of the upper punch 6-2 is 10-25 mm, the next punching forming section 6-2 is provided with a forming previous punching effective section 6-2-1 which is consistent with the outline of the second step difference 1-3 of the angle block arranged in the multi-step difference angle block 1 and has the specific length of 5-20 mm, the rest parts are an upper punching material escaping section 6-2-2 with the outline 0.1-0.5 smaller than that of the upper punching effective section 6-2-1, a next punching first chamfer surface 6-2-3 which is consistent with the chamfer 1-8 in the multi-section differential angle block 1 in size but is convex in shape is arranged in the end surface of the upper punching forming section 6-2-2, the middle of the upper punch base 6-1 is provided with an upper punch through special-shaped hole 6-1-1 which is 0.2-1 mm larger than the outline of a first section difference surface 1-2 of the angle block arranged in the multi-section difference angle block 1.
The integral length of the upper two-punch forming section 7 is 120-140 mm, the specific length of the upper two-punch forming section 7-2 is 95-110 mm, the upper two-punch forming section 7-2-2 is provided with a forming upper two-punch effective section 7-2-1 which is consistent with the contour of the first section difference 1-2 of the angle block arranged in the multi-section difference angle block 1 and has the specific length of 20-35 mm, the rest parts are upper two-punch material escaping sections 7-2-2 which are 0.1-0.5 smaller than the contour of the forming upper two-punch effective section 7-2-1, the end surface of the forming upper two-punch forming section 7-2 is provided with an upper two-punch chamfer surface 7-2-3 which is consistent with the size of a chamfer 1-8 arranged in the multi-section difference angle block 1 but has a convex shape, the middle of the forming upper two-punch (5) is provided with an upper two-punch 2 sectional forming through hole 7-3, the size of which is consistent with the forming core rod effective core rod wheel 2-1-1 arranged in the forming core rod wheel 2, specifically, an upper secondary punching effective through hole 7-3-1 with the length of 10-30 mm, an upper secondary punching escape hole 7-3-2 with the lower section size 0.1-0.5 larger than the upper secondary punching effective through hole 7-3-1, and an upper secondary punching first chamfer surface 7-2-3 and an upper secondary punching second chamfer surface 7-3-3 which are convex in shape and have the size consistent with the chamfer 1-8 arranged in the multi-section angle difference block 1 are respectively arranged at the end surfaces of the upper secondary punching effective section 7-2-1 and the upper secondary punching effective through hole 7-3-1.
Integrally assembling a multi-section difference corner block forming die: firstly, a forming core rod 2 is locked on a forming press by using a forming core rod fixing thread arranged in a forming core rod connecting rod, a forming lower punch 4 is sleeved into the forming core rod from top to bottom through a 2-section forming core rod through hole 5-3, the forming lower punch 4 is locked on the forming press, the next punch through special-shaped hole 4-1-1 of the forming lower punch 3 is set as the size by setting the outline of the fifth section difference surface 1-6 of the corner block to be 0.2-1 mm larger, the forming lower punch effective section 5-2-1 in the forming lower punch forming section 5-2 is matched with the outline of the fifth section difference 1-6 of the corner block, therefore, the next punch through special-shaped hole 4-1-1 can be used for assembling the forming lower punch 3 after penetrating through the forming lower punch forming section 5-2, the forming lower punch 3 and the forming lower punch 4 are assembled on the forming press to form a mutual staggered assembly mode, respectively penetrating through holes 2-3 and 2-4 with the same profile as the third section difference surface 1-4 of the corner block at the position 2 and the fifth section difference surface (1-6) of the corner block at the position 1 in the section difference type forming female die 2 from top to bottom through a next punching forming section 4-2 and a next second punching forming section 5-2, and then assembling the section forming female die 2 on a forming press; assembling an upper two-punch forming section 7-2 in the upper two-punch forming section 7 on a forming press downwards; the former punch forming section 6-2 in the former punch 5 is downward, and the arranged former punch through special-shaped hole 6-1-1 penetrates through the upper two punch forming sections 7-2 to be assembled on a forming machine, the former punch 6 and the former punch are mutually staggered, and the contour of the former punch effective section 6-2-1 arranged on the former punch 6 and the contour of the former punch effective section 7-2-1 are mutually attached to form a contour which is consistent with the contour of the section difference cavity 2-1 arranged in the section difference forming female die 2, so that the former punch 6 and the former punch 7 can be smoothly assembled and then smoothly placed into the section difference cavity 2-1.
Utilize the utility model discloses the poor forming die of multistage manufactured is when producing the poor angle piece body of multistage, each section poor face that sets for in the poor angle piece body of multistage all forms into independent adjustable mould structure in the mould designed through this new form, can carry out the independent adjustment of each section poor distance according to the demand, consequently can be smooth reach the one-shot forming target of poor angle piece body of multistage and all be equipped with on each mould profile in the poor angle piece of multistage and take with the protruding chamfer face that sets up in the poor angle piece of multistage on the next dashing of shaping, the second dashing under shaping, the first dashing of shaping, the second dashing of shaping, the protruding chamfer face that accords with the chamfer that sets up in the poor angle piece of multistage is got, therefore set up in the poor angle piece of multistage in the middle of shaping process and can take shape simultaneously, therefore not only a large amount of reduction to the poor angle piece body appearance of multistage and the loaded down with trivial details step of section poor processing, the technology vexation that follow-up the hair is got rid of still reduced; simultaneously because of the utility model discloses an adopted powder metallurgy die forming process, therefore had concurrently advantages such as body size stability, precision height, very suitable to have stable in quality's production to a large amount of the poor angle piece base plate of multistage and concurrently, greatly reduced production man-hour and manufacturing cost.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a powder metallurgy forming die of multistage difference angle piece which characterized in that: comprises a segment difference type forming female die (2), a forming core rod (3), a forming next punch (4), a forming lower second punch (5), a forming upper first punch (6) and a forming upper second punch (7), a forming lower secondary punch (5) is sleeved on the forming core rod (3), a forming lower primary punch (4) is sleeved on the forming lower secondary punch (5), a segment difference type forming female die (2) is arranged on the next forming punch (4), a segment difference type cavity (2-1) is arranged in the segment difference type forming female die (2), the forming lower second punch (5) and the forming lower first punch (4) are sleeved and then arranged in the section differential cavity (2-1), the forming upper punch (7) is sleeved on the forming core rod (3), the forming upper punch (6) is sleeved on the forming upper punch (7), the forming upper punch (7) and the forming upper punch (6) are sleeved and then arranged in the section difference cavity (2-1).
2. The powder metallurgy forming die of multi-segment difference angle block of claim 1, wherein: a first through hole (2-3) and a second through hole (2-4) are formed in the surface of a section difference cavity (2-1) of the section difference forming female die (2), and a fourth section difference forming surface (2-2) is formed between the first through hole (2-3) and the second through hole (2-4).
3. The powder metallurgy forming die of multi-segment difference angle block of claim 1, wherein: the forming core rod (3) comprises a tungsten steel effective section (3-1) and a core rod connecting rod (3-2), and the tungsten steel effective section (3-1) is internally provided with a forming core rod effective outline part (3-1-1).
4. The powder metallurgy forming die of multi-segment difference angle block of claim 1, wherein: the forming next punch (4) comprises a next punch base (4-1) and a next punch forming section (4-2) arranged on the next punch base (4-1), the next punch forming section (4-2) sequentially comprises a next punch escaping section (4-2-2) and a forming next punch effective section (4-2-1) from bottom to top, a next punch chamfer surface taking section (4-2-3) is arranged on the upper end surface of the forming next punch effective section (4-2-1), the length of the next punch forming section (4-2) is 40-60 mm, and the length of the forming next punch effective section (4-2-1) is 10-30 mm.
5. The powder metallurgy forming die of multi-segment difference angle block of claim 1, wherein: the forming lower secondary punch (5) comprises a lower secondary punch base (5-1), a lower secondary punch forming section (5-2) arranged on the lower secondary punch base (5-1) and a lower secondary punch forming core rod through hole (5-3), the lower secondary punch forming section (5-2) comprises a lower secondary punch escape section (5-2-2) and a lower secondary punch effective section (5-2-1) arranged on the lower secondary punch escape section (5-2-2), the end face of the lower secondary punch effective section (5-2-1) is provided with a lower secondary punch first chamfer face taking part (5-2-3), and the lower secondary punch forming core rod (5-3) comprises a lower secondary punch effective through hole (5-3-1) arranged in the middle of the lower secondary punch effective section (5-2-1) and a lower secondary punch material hole (5-2-2) arranged in the middle of the lower secondary punch escape section (5-2-2) 3-2), and a second lower punching chamfer surface (5-3-3) is arranged at the outer end of the second lower punching effective through hole (5-3-1).
6. The powder metallurgy forming die of multi-segment difference angle block of claim 1, wherein: the forming upper punch (6) comprises an upper punch base (6-1) and an upper punch forming section (6-2) arranged on the upper punch base (6-1), the upper punch forming section (6-2) comprises an upper punch escaping section (6-2-2) and an upper punch effective section (6-2-1) arranged on the upper punch escaping section (6-2-2), the upper end face of the upper punch effective section (6-2-1) is provided with a lower punch chamfer face taking section (6-2-3), and the middle of the upper punch base (6-1) is provided with an upper punch through special-shaped hole.
7. The powder metallurgy forming die of multi-segment difference angle block of claim 1, wherein: the forming upper secondary punch (7) comprises an upper secondary punch base (7-1), an upper secondary punch forming section (7-2) and an upper secondary punch forming core rod through hole (7-3), the upper secondary punch forming section (7-2) comprises an upper secondary punch escaping section (7-2-2) and an upper secondary punch effective section (7-2-1) arranged on the upper secondary punch escaping section (7-2-2), the top end surface of the upper secondary punch effective section (7-2-1) is provided with an upper secondary punch first chamfer surface taking part (7-2-3), the upper secondary punch forming core rod through hole (7-3) comprises an upper secondary punch effective through hole (7-3-1) arranged in the middle of the upper secondary punch effective section (7-2-1) and an upper secondary punch escaping hole (7-3-2) arranged in the middle of the upper secondary punch escaping section (7-2-2), an upper second punching second chamfer angle surface (7-3-3) is arranged at the end surface of the upper second punching effective through hole (7-3-1).
CN202022860511.4U 2020-12-01 2020-12-01 Powder metallurgy forming die of multistage difference angle piece Active CN214640280U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114871430A (en) * 2022-04-07 2022-08-09 南通鸿明新材料有限公司 Forming die and forming process for bimetal oil-retaining bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114871430A (en) * 2022-04-07 2022-08-09 南通鸿明新材料有限公司 Forming die and forming process for bimetal oil-retaining bearing

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Address after: 214105 No. 62, Jiaoyang East Road, Xishan mechanical equipment Industrial Park, Wuxi City, Jiangsu Province

Patentee after: Qingzhi (Wuxi) powder casting and Forging Co., Ltd

Address before: 214101 No.11 HUAFA Road, Dongting street, Xishan District, Wuxi City, Jiangsu Province

Patentee before: Qingzhi (Wuxi) powder casting and Forging Co., Ltd