CN213613902U - Forging and pressing die for connecting rod sample - Google Patents
Forging and pressing die for connecting rod sample Download PDFInfo
- Publication number
- CN213613902U CN213613902U CN202021851909.5U CN202021851909U CN213613902U CN 213613902 U CN213613902 U CN 213613902U CN 202021851909 U CN202021851909 U CN 202021851909U CN 213613902 U CN213613902 U CN 213613902U
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- Prior art keywords
- upper punch
- support
- punch
- connecting rod
- assembly
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- 238000005242 forging Methods 0.000 title claims abstract description 45
- 238000003825 pressing Methods 0.000 title claims description 23
- 238000003860 storage Methods 0.000 claims abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 239000002184 metal Substances 0.000 description 7
- 238000004663 powder metallurgy Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a forging mould of connecting rod appearance spare, include: the device comprises an upper punch assembly, a lower punch assembly, a middle die and a core rod assembly; the upper punch assembly comprises an upper punch, an upper punch support and an upper punch base, wherein the upper punch is connected to the upper punch support, the upper punch support is connected to the upper punch base, and the upper punch support is connected with the upper punch base through a bolt; the lower punch assembly comprises a lower punch and a lower punch base, the lower punch is connected to the lower punch base, the lower punch support is connected with the lower punch base through a bolt, and the lower punch is arranged below the upper punch; the middle die is arranged between the upper punch and the lower punch, and a storage groove is arranged in the middle die; positioning holes are formed in the outer edge of the middle die and are arranged in an annular array; the core rod assembly comprises a core rod and a core rod support, the core rod is connected to the core rod support, and the core rod penetrates through the upper punch assembly and the middle die. In this way, the utility model discloses the commonality is strong, saves time, and the maintenance of being convenient for is favorable to using widely in the connecting rod is made.
Description
Technical Field
The utility model relates to a forging and pressing technical field especially relates to a forging and pressing mould of connecting rod appearance piece.
Background
The manufacturing process of the connecting rod mainly comprises the following steps: manufacturing a connecting rod blank and finely machining the connecting rod blank. The manufacturing method of the connecting rod blank mainly comprises two manufacturing methods of powder metallurgy forging and billet forging, the development time of the blank generally needs at least four months no matter which blank manufacturing method is adopted by the two manufacturing methods, and the development time of a die is more than half of the development time. Connecting rod moulds of different models and sizes are required to be developed and manufactured again, no substitution exists between the connecting rod moulds, so that the comprehensive manufacturing cost of the sample piece, particularly the cost of the mould, is high, meanwhile, the development period is long, and the response requirement of a customer on the rapid sample piece cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a forging and pressing mould of connecting rod appearance piece, can use widely in the connecting rod is made, and the commonality is strong.
In order to achieve the above object, the technical solution of the present invention is:
a forging die for a connecting rod sample, comprising: the device comprises an upper punch assembly, a lower punch assembly, a middle die and a core rod assembly; the upper punch assembly comprises an upper punch, an upper punch support and an upper punch base, wherein the upper punch is connected to the upper punch support, the upper punch support is connected to the upper punch base, and the upper punch support is connected with the upper punch base through a bolt; the lower punch assembly comprises a lower punch and a lower punch base, the lower punch is connected to the lower punch base, the lower punch support is connected with the lower punch base through a bolt, and the lower punch is arranged below the upper punch; the middle die is arranged between the upper punch and the lower punch, and a storage groove is formed in the middle die; positioning holes are formed in the outer edge of the middle die and are arranged in an annular array; the mandrel assembly comprises a mandrel and a mandrel support, the mandrel is connected to the mandrel support, and the mandrel penetrates through the upper punch assembly and the middle die; the mandrel holder is disposed on the upper punch base.
Preferably, the mandrel comprises a first end, a second end and a third end, the first end is arranged above the third end, and the first end is connected with the third end through the second end; the diameter of the second end of the core rod is smaller than the diameter of the third end of the core rod.
Preferably, a projection is arranged at the first end of the mandrel, and the projection is clamped in the mandrel support.
Preferably, the upper punch support comprises an upper punch support first step and an upper punch support second step, the upper punch support first step being disposed above the upper punch support second step.
Preferably, the upper punch assembly further comprises an upper punch plate, the upper punch support is arranged between the upper punch plates, and the upper punch plate is pressed on the first step of the upper punch support.
Preferably, the upper punch assembly further comprises an upper punch pad, the upper punch pad being disposed between the upper punch and the upper punch support.
Preferably, the undershoot assembly further includes a undershoot gasket disposed between the undershoot and undershoot support.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:
the utility model provides a forging and pressing mould of connecting rod appearance piece, not direct molding is the connecting rod, but forging and pressing becomes connecting rod unburned bricks, can all adopt the same connecting rod unburned bricks to the connecting rod that adopts same raw and other materials, only need same forging and pressing mould can, the commonality is strong, saves time, and the maintenance of being convenient for is favorable to using widely in the connecting rod is made.
Drawings
Fig. 1 is a schematic structural view of a finished connecting rod.
Fig. 2 is a schematic view of the structure of a connecting rod sample.
Fig. 3 is a schematic structural view of a forging and pressing mold for a connecting rod sample piece according to the present invention.
Fig. 4 is a sectional view of a forging mold for a connecting rod sample of the present invention.
Description of reference numerals:
the upper punch assembly comprises an upper punch assembly 1, an upper punch 11, an upper punch support 12, an upper punch base 13, an upper punch press plate 14 and an upper punch gasket 15;
the lower punch assembly 2, the lower punch 21, the lower punch base 22 and the lower punch gasket 23;
middle mold 3, article holding groove 31, positioning hole 32;
a core rod assembly 4, a core rod 41 and a core rod support 42;
a connecting rod finished product 5;
a link sample 6.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, a forging die for a connecting rod sample 6 includes: an upper punch assembly 1, a lower punch assembly 2, a middle die 3 and a core rod assembly 44. The forging and pressing die is only used for manufacturing the connecting rod sample piece 6, and then the connecting rod sample piece 6 is processed into the connecting rod finished product 5 through other equipment according to specific requirements. The connecting rod sample 6 is a connecting rod green body, and the raw material for manufacturing the connecting rod green body is a heated powder metallurgy blank. Powder metallurgy is a process technique for producing metal powder or metal powder (or a mixture of metal powder and nonmetal powder) as a raw material, and then forming and sintering the raw material to produce metal materials, composite materials and various products. The powder metallurgy technology has a series of advantages of remarkable energy saving, material saving, excellent performance, high product precision, good stability and the like, and is very suitable for mass production.
The green connecting rod body is manufactured by hot forging and pressing a powder metallurgy blank. Hot forging refers to forging at a temperature above the recrystallization temperature of the metal. The forging can optimize the microstructure, and improve the integral densification degree and related mechanical properties of the connecting rod blank. The forging temperature is increased, so that the plasticity of the metal can be improved, the inherent quality of the workpiece can be improved, and the workpiece is not easy to crack. The high temperature also reduces the deformation resistance of the metal and reduces the tonnage of the required forging machinery. Because the powder metallurgy billet is hot stamped in the die cavity, the circumferential dimension of the green compact produced by the stamping is good, and generally no further processing of the outer contour is required.
The upper punch assembly 1 comprises an upper punch 11, an upper punch support 12 and an upper punch base 13, wherein the upper punch 11 is connected to the upper punch support 12, the upper punch support 12 is connected to the upper punch base 13, and the upper punch support 12 is connected with the upper punch base 13 through bolts. The upper punch assembly 1 further comprises an upper punch pad 15, the upper punch pad 15 is arranged between the upper punch 11 and the upper punch support 12, the upper punch 11 and the upper punch support 12 are connected more tightly through the upper punch pad 15, and meanwhile the upper punch assembly 1 can be suitable for machining connecting rod sample pieces 6 with different thicknesses. The upper punch pad 15 is bolted to the upper punch 11 and the upper punch support 12, which facilitates the replacement of the upper punch pad 15.
In order to better attach the upper punch support 12 to the upper punch base 13, the upper punch support 12 may be stepped. That is, the upper seat 12 includes a first step of the upper seat 12 and a second step of the upper seat 12, and the first step of the upper seat 12 is disposed above the second step of the upper seat 12.
The upper punch assembly 1 further comprises an upper punch plate 14, the upper punch support 12 is arranged between the upper punch plates 14, and the upper punch plate 14 is pressed on the first step of the upper punch support 12. The upper punch support 12 is pressed against the upper punch base 13 by the upper punch plate 14, improving the stability of the connection.
The lower punch assembly 2 comprises a lower punch 21 and a lower punch base 22, the lower punch 21 is connected to the lower punch base 22, a lower punch 21 support is connected with the lower punch base 22 through bolts, the lower punch 21 is arranged below the upper punch 11, and the upper face and the lower face of the connecting rod sample 6 are subjected to forging and forming through the upper punch 11 and the lower punch 21.
The lower punch assembly 2 further comprises a lower punch gasket 23, the lower punch gasket 23 is arranged between the lower punch 21 and the lower punch 21 support, the lower punch 21 and the lower punch 21 support are connected more tightly through the lower punch gasket 23, and meanwhile the lower punch assembly 2 can be suitable for machining connecting rod sample pieces 6 with different thicknesses. The lower punch gasket 23 is connected with the lower punch 21 and the lower punch 21 support through bolts, so that the lower punch gasket 23 can be replaced conveniently.
The middle die 3 is arranged between the upper punch 11 and the lower punch 21, a storage groove 31 is arranged in the middle die 3, and the storage groove 31 is a through hole with the same shape as the outer contour shape of the connecting rod sample piece 6. Positioning holes 32 are formed in the outer edge of the middle mold 3, the positioning holes 32 are arranged in an annular array, and the positioning pins are inserted into the positioning holes 32 to limit circumferential rotation of the middle mold.
The core rod assembly 44 comprises a core rod 41 and a core rod support 42, the core rod 41 is connected to the core rod support 42, and the core rod 41 penetrates through the upper punch assembly 1 and the middle die 3; the mandrel holder 42 is provided on the punch base 13. The core rod 41 comprises a first end of the core rod 41, a second end of the core rod 41 and a third end of the core rod 41, the first end of the core rod 41 is arranged above the third end of the core rod 41, and the first end of the core rod 41 is connected with the third end of the core rod 41 through the second end of the core rod 41. The diameter of the second end of the mandrel 41 is smaller than the diameter of the third end of the mandrel 41. That is, the diameter of the third end of the mandrel 41 is the same as the inner diameter of the through hole at one end of the connecting rod sample 6, and the diameter of the second end of the mandrel 41 is smaller than the diameter of the third end of the mandrel 41, so that the friction force of the mandrel 41 in the up-and-down moving process can be effectively reduced, the abrasion of the mandrel 41 is reduced, and the service life of the mandrel 41 is prolonged.
In order to better connect the mandrel 41 to the mandrel holder 42, the first end of the mandrel 41 is provided with a projection, which is engaged in the mandrel holder 42, and the mandrel 41 is engaged in the groove of the mandrel holder 42 by the projection.
In the forging die, a core rod assembly 44, an upper punch assembly 1, a middle die 3 and a lower punch assembly 2 can freely move up and down in the respective stroke ranges along the vertical direction, wherein the middle die 3 is fixed in a cavity of a forging machine tool and cannot freely move. Specifically, the mandrel holder 42 is bolted to the upper slide of the machine tool, and the mandrel assembly 44 moves up and down with the upper slide during the forging operation. The upper punch base 13 is connected to an upper slide block of a machine tool through a bolt, and the upper punch assembly 1 moves up and down along with the upper slide block in the forging and pressing working process. The middle die 3 is connected to a machine tool cavity through a bolt, and the position of the middle die 3 is always kept unchanged in the forging and pressing working process. The lower punch base 22 is connected to a lower slide block of a machine tool through a bolt, and the lower punch assembly 2 moves up and down along with the lower slide block in the forging and pressing working process.
In the actual forging process of the connecting rod sample piece, the method comprises four processes of resetting feeding, starting forging and pressing, stopping forging and pressing and popping out a forging piece, wherein each process specifically comprises the following steps:
resetting and feeding: the core rod assembly, the upper punch assembly and the lower punch assembly are respectively restored to the initial positions. The middle die is in a static state all the time in the whole working cycle. And a machine tool release agent nozzle sprays a proper amount of release agent into the middle mold cavity. Then the feeding mechanical arm rapidly places the prepared powder metallurgy blank in the middle die cavity and resets.
Forging and pressing are started: the punch assembly is pressed at a relatively high speed in a vertically downward direction against the upper surface of the blank while the core rod assembly is dropped and introduced into the corresponding hole of the blank.
And (3) forging and pressing termination: and maintaining the pressure of the upper punch assembly and the core rod assembly for about 1s after the upper punch assembly and the core rod assembly reach the preset positions.
Ejecting a forged piece: and the upper punch assembly and the core rod assembly quickly return to the initial positions, and meanwhile, the lower punch assembly presses the lower surface of the forging piece at a high speed in the vertical upward direction, so that the forging piece is quickly ejected out of the middle mold cavity. And the material taking mechanical arm rapidly takes out the forged piece, places the forged piece on the metal conveying belt and resets.
Only one set of universal die needs to be developed through the forging die, so that the die development time and cost are very low, and the die can be maintained and repaired daily. Because all the connecting rod projects adopting the same raw material can adopt the same connecting rod green body, the production amount of single raw material can be very large, so that the connecting rod can be taken at any time, and meanwhile, the cost of a single piece is lower. And the response of customers to the requirements of rapid sample pieces with different projects and sizes can be met.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a forging and pressing mould of connecting rod appearance spare which characterized in that includes: the device comprises an upper punch assembly, a lower punch assembly, a middle die and a core rod assembly; the upper punch assembly comprises an upper punch, an upper punch support and an upper punch base, wherein the upper punch is connected to the upper punch support, the upper punch support is connected to the upper punch base, and the upper punch support is connected with the upper punch base through a bolt; the lower punch assembly comprises a lower punch and a lower punch base, the lower punch is connected to the lower punch base, the lower punch support is connected with the lower punch base through a bolt, and the lower punch is arranged below the upper punch; the middle die is arranged between the upper punch and the lower punch, and a storage groove is formed in the middle die; positioning holes are formed in the outer edge of the middle die and are arranged in an annular array; the mandrel assembly comprises a mandrel and a mandrel support, the mandrel is connected to the mandrel support, and the mandrel penetrates through the upper punch assembly and the middle die; the mandrel holder is disposed on the upper punch base.
2. The forging die for a connecting rod sample as recited in claim 1, wherein: the mandrel comprises a first end, a second end and a third end, the first end is arranged above the third end, and the first end is connected with the third end through the second end; the diameter of the second end of the core rod is smaller than the diameter of the third end of the core rod.
3. The forging die for a connecting rod sample as recited in claim 2, wherein: the first end of the core rod is provided with a convex block, and the convex block is clamped in the core rod support.
4. The forging die for a connecting rod sample as recited in claim 1, wherein: the upper punch support comprises an upper punch support first step and an upper punch support second step, and the upper punch support first step is arranged above the upper punch support second step.
5. The forging die for a connecting rod sample as recited in claim 4, wherein: the upper punch assembly further comprises an upper punch pressing plate, the upper punch support is arranged between the upper punch pressing plates, and the upper punch pressing plate is arranged on the first step of the upper punch support in a pressing mode.
6. The forging die for a connecting rod sample as recited in claim 1, wherein: the upper punch assembly further comprises an upper punch pad disposed between the upper punch and the upper punch support.
7. The forging die for a connecting rod sample as recited in claim 1, wherein: the undershoot assembly further includes a undershoot gasket disposed between the undershoot and undershoot support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021851909.5U CN213613902U (en) | 2020-08-31 | 2020-08-31 | Forging and pressing die for connecting rod sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021851909.5U CN213613902U (en) | 2020-08-31 | 2020-08-31 | Forging and pressing die for connecting rod sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213613902U true CN213613902U (en) | 2021-07-06 |
Family
ID=76647402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021851909.5U Expired - Fee Related CN213613902U (en) | 2020-08-31 | 2020-08-31 | Forging and pressing die for connecting rod sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213613902U (en) |
-
2020
- 2020-08-31 CN CN202021851909.5U patent/CN213613902U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210706 |