CN210412363U - Piston head forging die with annular composite ejector rod mechanism - Google Patents
Piston head forging die with annular composite ejector rod mechanism Download PDFInfo
- Publication number
- CN210412363U CN210412363U CN201921199267.2U CN201921199267U CN210412363U CN 210412363 U CN210412363 U CN 210412363U CN 201921199267 U CN201921199267 U CN 201921199267U CN 210412363 U CN210412363 U CN 210412363U
- Authority
- CN
- China
- Prior art keywords
- ejector rod
- lower die
- annular
- die
- piston head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Forging (AREA)
Abstract
The utility model discloses a piston head forging die with an annular composite ejector rod mechanism, which comprises a lower die core and a lower die sleeve, wherein the lower die core is fixed in the lower die sleeve, and the top surface of the lower die core and the inner surface of the lower die sleeve form a forming surface corresponding to a piston head forging; the bottom of the lower die core is provided with a mandril mechanism, a cavity for accommodating the mandril mechanism is arranged in the die, and the cavity is of an up-and-down penetrating structure; the ejector rod mechanism comprises a main ejector rod, a T-shaped ejector rod, a plurality of step ejector rods and an annular ejector rod. The utility model has the advantages that: the integral die is divided into two module structures along the corners of the die by the lower die, namely a lower die core and a lower die sleeve, so that the stress concentration area in the forging process is eliminated, and the service life of the die is obviously prolonged; and multiple ejection is realized through the plurality of step ejector rods and the annular ejector rods, the ejection force is homogenized, the forge piece can be ensured to be ejected smoothly and demoulded, the deformation of the hot forge piece caused by ejection can be effectively reduced, and the quality of the forge piece is improved.
Description
Technical Field
The utility model relates to a forge the mould, what especially related to is a piston head forges mould with compound ejector pin mechanism of annular.
Background
Forged steel pistons can be divided into two main categories according to structural style: the piston comprises an integral piston and a split piston, wherein the split piston is formed by welding and combining a piston head and a piston skirt. Usually, the forging of the piston head adopts open die forging, the heating temperature of a blank is about 1200 ℃, the machining allowance of the piston head blank is large, and the corner R is large (generally R is more than or equal to 3). The open forging process has low material utilization rate, high processing cost and great complaints of customers.
The advanced forging process of the piston head is 'closed die forging', but the corner R of the forged piece is often less than the corner R of the forged piece, so that the filling effect is poor; when a forging piece is ejected by a traditional cylindrical ejector rod, the stress on two sides is unbalanced, and the die clamping phenomenon occurs when the forging piece is ejected, so that the production line is stopped; because a fit clearance is formed between the cylindrical ejector rod and the die, the cylindrical ejector rod is usually left at the ejection position of the forge piece
The lug boss or the burr is not beneficial to the processing of the blank in the later period; the more outstanding problems are that the closed forging die has low service life and high manufacturing cost and cannot adapt to large-batch automatic forging.
Conventional piston head forging die ejection schemes are broadly divided into two categories: first, the entire piston head of the lower die core is used as a part of the ejector rod of the die. When the ejector rod works, the whole lower mold core is ejected out, and then the lower mold core ejects out the forge piece. The structure is simple in design and convenient to install, the requirement on corners R is not high (R is more than or equal to 3), the piston head forge piece with the lower mould cavity not deep can be easily demoulded when being ejected, and the structure has good applicability. However, in the forging process, because the stress of the forging core part is the largest, the forging pressure on the upper end of the single ejector rod is large, and because the outer diameter of the single ejector rod is smaller, the single ejector rod is easy to deform, and finally the ejector rod cannot be ejected smoothly until the lower die is clamped, and normal production cannot be realized;
such as patent No. 201710174665.8, entitled: closed die forging mechanism of closed single-point press discloses a press, especially relates to a closed die forging mechanism of closed single-point press. The technical problems that in the prior art, all parts of a press are designed to be straight, so that the gap is large during die forging, the die forging is inaccurate, and the precision of produced parts is low are solved. The utility model discloses a die carrier, be equipped with cope match-plate pattern and lower bolster on the die carrier, the cope match-plate pattern is fixed with the die shank, it is connected with the drift that takes shape through last mould fixation nut to go up the die shank, the drift that takes shape is including the drift body, the upper portion of drift body is equipped with the holding ring, drift body lower extreme is equipped with the lug, the head and the root of lug all are equipped with the arc surface, be equipped with gassing channel on the drift body, be equipped with the die holder on the lower bolster, cross-under has big ejector pin in the die holder, there is the forming die on big ejector pin upper portion through little ejector pin top, the forming die outside is equipped with. Adopt an ejector pin to realize in this application, nevertheless have the atress inhomogeneous, yielding problem.
And secondly, two or even a plurality of thin ejector rods are adopted to directly eject the forge piece. The length of the ejector rod needs to be strictly controlled in the assembly of the ejector rod, and because the stress area is too small, in order to ensure that the thin ejector rod cannot be ejected into the forge piece when ejecting the forge piece, a plurality of process bosses with certain heights usually remain on the contact surface of the ejector rod and the forge piece, and the bosses are not favorable for subsequent finished product processing and cannot be received by customers, so that the machining processing is required, and the cost is increased.
As patent numbers: 201710333432.8, entitled flexible demoulding method of closed die forging large-scale special-shaped structure forging, discloses that the demoulding device adopted by the method comprises at least 3 ejector rods and a base, wherein the lower die of the die forging is provided with through holes, the lower ends of the ejector rods are fixed on the base, the upper ends of the ejector rods penetrate through the through holes of the lower die to be contacted with different bottom surfaces of the large-scale special-shaped structure forging in a die cavity, the number of the through holes of the lower die is equal to that of the ejector rods, and the ejector rods are composed of flexible sections with elasticity at the upper ends and rigid sections with rigidity at the lower ends;
in order to adapt to the demoulding of larger parts, a plurality of ejector rods are adopted for ejecting out simultaneously; therefore, the length of the top rod needs to be strictly controlled, and the process requirement is high.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: how to solve the problem that the existing die can not meet the process requirement after the piston head forge piece is ejected.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: the utility model discloses a piston head forging die with an annular composite ejector rod mechanism, which comprises a lower die core and a lower die sleeve, wherein the lower die core is fixed in the lower die sleeve, and the top surface of the lower die core and the inner surface of the lower die sleeve form a forming surface corresponding to a piston head forging; the bottom of the lower die core is provided with a mandril mechanism, a cavity for accommodating the mandril mechanism is arranged in the die, and the cavity is of an up-and-down penetrating structure;
the ejector rod mechanism comprises a main ejector rod, a T-shaped ejector rod, a plurality of step ejector rods and an annular ejector rod from bottom to top in sequence, a piston head forging piece is arranged at the top of the annular ejector rod, the annular ejector rod is arranged in the lower die core, the annular ejector rod is in clearance fit with the lower die core, and the step ejector rod is fixedly connected with the bottom of the annular ejector rod.
The utility model divides the whole die into two modular structures, namely a lower die core and a lower die sleeve, along the die corner of the lower die, thus eliminating the stress concentration area in the forging process and obviously prolonging the service life of the die; multiple ejection is realized through the plurality of step ejector rods, the ejection force generated by the step ejector rods is homogenized through the annular ejector rods, the contact surface between the ejection mechanism and the piston head forge piece is increased, the forge piece can be ensured to be ejected smoothly and demoulded, the deformation of the hot forge piece caused by ejection can be effectively reduced, and the quality of the forge piece is improved; the T-shaped ejector rod can also enable ejection force at the T-shaped surface to be uniform.
Preferably, the die further comprises a base, a lower die base plate and a lower die sleeve, wherein the lower die base plate is fixed on the base, the lower die sleeve is fixed on the lower die base plate, the lower die core is fixed on the lower die sleeve, and cavities for accommodating the ejector rod mechanisms are formed in the base, the lower die base plate and the lower die sleeve.
The forging lower mold core is fixed in a lower mold sleeve, and the lower mold sleeve and a lower mold base plate are tightly pressed with a mold frame of the fixed mold through a tool;
the cavity for ejecting the ejection mechanism is adaptively arranged in the mold according to the connection position condition of the ejection mechanism, and the cavity can be large, such as the cavity for accommodating the main ejector rod and the T-shaped ejector rod, or small, such as the cavity for accommodating the step ejector rod in the lower mold core.
Preferably, still include die holder, annular setting element, the die holder is fixed at the base upper surface, and the annular setting element sets up and is connected face department at base and die holder to base and die holder, lower die backing plate fix the die holder upper surface, main ejector pin sets up in the cavity of base, the vertical pole setting of T type ejector pin is in the cavity of die holder, the horizontal panel of T type ejector pin is spacing at the upper surface of die holder.
The annular positioning piece can realize the center positioning of the equipment base and the lower die holder.
Preferably, the device also comprises a plurality of return springs, and the return springs are sleeved outside the step ejector rod and limited between the lower mold core and the step surface of the step ejector rod.
The reset spring has the effect that the reset spring is beneficial to resetting of the step ejector rod after the forging is ejected by the ejection mechanism, the reset spring is compressed in the ejection process, and after ejection is finished, ejection force is not exerted, and the spring has outward elasticity.
Preferably, the lower mold core is of a step-shaped structure with a small upper part and a large lower part, and a deep hole for accommodating the return spring is formed in the bottom of the lower mold core.
The lower die core can be clamped with the lower die sleeve at the step, so that the stability is improved; the deep hole is also a step hole, and the return spring can be limited at the step surface of the deep hole.
Preferably, the step ejector rod is of a structure with a large lower part and a small upper part, and the top end of the step ejector rod is connected with the annular ejector rod in an interference fit manner.
Preferably, the number of the step mandrils is four, and the step mandrils are uniformly arranged on the same circumference.
Preferably, the annular ejector rod is of an annular cylinder structure, and the thickness of one end, which is in contact with the forge piece, of the annular ejector rod is larger than that of one end, which is connected with the step ejector rod, of the annular ejector rod. The thickness of the upper end is large, the gap between the upper end and the inner part of the upper die core is small, the residue of a boss of a forge piece can be reduced, the thickness of the lower end is small, and the push rod can be conveniently pushed out.
Preferably, the die further comprises an upper die core, the upper die core is installed above the forge piece, and during forging, the upper die core and the lower die core form a forging space. The upper mold core is tightly pressed with the mold frame of the fixed mold through the tool.
Preferably, the main ejector rod is connected with a hydraulic cylinder. The ejection smoothness of the forged piece in automatic forging can be ensured, and the ejection force and the stroke adjustment are convenient.
Compared with the prior art, the utility model has the following advantages:
(1) the utility model divides the whole die into two modular structures, namely a lower die core and a lower die sleeve, along the die corner of the lower die, thus eliminating the stress concentration area in the forging process and obviously prolonging the service life of the die; multiple ejection is realized through the plurality of step ejector rods, the ejection force generated by the step ejector rods is homogenized through the annular ejector rods, the contact surface between the ejection mechanism and the piston head forge piece is increased, the forge piece can be ensured to be ejected smoothly and demoulded, the deformation of the hot forge piece caused by ejection can be effectively reduced, and the quality of the forge piece is improved; the T-shaped ejector rod can also enable ejection force at the T-shaped surface to be uniform;
(2) the reset spring has the function that after the forging is ejected by the ejection mechanism, the reset spring is beneficial to the reset of the step ejector rod, the reset spring is compressed in the ejection process, and after the ejection is finished, the ejection force is not exerted, and the spring has outward elasticity;
(3) the upper end of the annular ejector rod is thick, the gap between the upper end of the annular ejector rod and the inner part of the upper die core is small, the residue of a boss of a forge piece can be reduced, the lower end of the annular ejector rod is small in thickness, and the push rod can be conveniently pushed out;
(4) the main ejector rod is connected with the hydraulic cylinder, so that the ejection smoothness of the forge piece in automatic forging can be ensured, and the ejection force and the stroke adjustment are convenient.
Drawings
FIG. 1 is a schematic structural diagram of a piston head forging die with an annular composite ejector rod mechanism according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a cross-sectional view of the annular stem bar;
fig. 4 is a plan view of the ring jack.
Reference numbers in the figures: the die comprises a base 1, a lower die base 2, an annular positioning piece 3, a lower die cushion plate 4, a lower die sleeve 5, a lower die core 6, an ejection mechanism 7, a main ejector rod 71, a T-shaped ejector rod 72, a step ejector rod 73, a return spring 731, an annular ejector rod 74, an upper die core 8 and a piston head forge piece 9.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The first embodiment is as follows:
as shown in fig. 1 and 2, in the piston head forging die with the annular composite ejector rod mechanism of the present embodiment, the die sequentially includes, from bottom to top, a base 1, a lower die base 2, an annular positioning element 3, a lower die backing plate 4, a lower die sleeve 5, a lower die core 6, an ejection mechanism 7, and an upper die core 8;
in the design of the lower die, the lower die core 6 is fixed in the lower die sleeve 5, and the top surface of the lower die core 6 and the inner surface of the lower die sleeve 5 form a forming surface corresponding to the piston head forging 9; the whole die is divided into two module structures along the die corners by the lower die, namely the lower die core 6 and the lower die sleeve 5, so that the stress concentration area in the forging process is eliminated, and the service life of the die is obviously prolonged
A cavity for accommodating the ejector rod mechanism 7 is formed in the die and is of an up-and-down penetrating structure;
the ejector rod mechanism 7 comprises a main ejector rod 71, a T-shaped ejector rod 72, four step ejector rods 73 and an annular ejector rod 74 from bottom to top in sequence, a piston head forge piece 9 is arranged at the top of the annular ejector rod 74, the annular ejector rod 74 is arranged in the lower mold core 6, the annular ejector rod 74 is in clearance fit with the lower mold core 6, the step ejector rod 73 is fixedly connected with the bottom of the annular ejector rod 74, the main ejector rod 71 is in contact connection with the T-shaped ejector rod 72, and the step ejector rod 73 is in contact connection with the T-shaped ejector rod 72. The main ejector rod 71 is a cylindrical ejector rod, the T-shaped ejector rod 72 is of a structure with a T-shaped cross section, the vertical rod can be a cylindrical rod, the cross surface can be a circular plate structure, the step ejector rod 73 is of a structure with a large lower part and a small upper part, and the top end of the step ejector rod is connected with the annular ejector rod 74 in an interference fit mode.
With reference to fig. 3 and 4, the number of the step push rods 73 is four, the step push rods are uniformly arranged on the same circumference, correspondingly, the annular push rod 74 is provided with four cavities on the circumference in the thickness direction, the annular push rod 74 is of an annular cylinder structure, and the thickness of one end of the annular push rod 74 in contact with the forging is greater than that of one end of the annular push rod connected with the step push rod, that is: the upper end thickness is big, and is little with the clearance between the inside of last mould core 6, can reduce the residue of the boss of forging, and lower extreme thickness is less, can be convenient for the push rod to release.
The base 1 is in a round table or square structure, and the whole of the main ejector rod 71 and the lower part of the T-shaped ejector rod are accommodated inside the base, or the bottom of the base is provided with an adaptive design.
The lower die holder 2 is fixed on the upper surface of the base 1, the annular positioning piece 3 is arranged at the position of the connecting surface of the base 1 and the lower die holder 2 and is connected with the base 1 and the lower die holder 2, and the annular positioning piece 3 can realize the central positioning of the base 1 and the lower die holder 2. The vertical rod of the T-shaped ejector rod 72 is arranged in the cavities of the lower die holder 2 and the bottom 1, the transverse panel of the T-shaped ejector rod is limited on the upper surface of the lower die holder 2, when the T-shaped ejector rod pushes upwards, the T-shaped ejector rod moves upwards and can be separated from the lower die holder 2, and when the T-shaped ejector rod 72 is restored to the initial position, the T-shaped ejector rod 72 can be lapped on the top surface of the lower die holder 2.
The lower die base plate 4 is fixed on the upper surface of the lower die base 2, the diameter of a cavity inside the lower die base plate 4 is slightly larger than the maximum diameter of the T-shaped ejector rod 72, the lower die sleeve 5 is fixed on the lower die base plate 4, the lower die sleeve 5 and the lower die base plate 4 are tightly pressed with a die frame of a fixed die through a tool, the lower die core 6 is fixed in the lower die sleeve 5, the outer wall of the lower die core 6 is fixedly connected with the inner wall of the lower die sleeve 5, the lower die core 6 is in a convex step type structure with a small upper part and a large lower part, the middle part of the lower die sleeve 5 is a cavity with a small upper part and a large; the lower mold core 6 is provided with a circumferential array of cavities for receiving the upper or/and middle part of the step mandril 73
Wherein, the base 1, the lower die holder 2, the annular positioning piece 3, the lower die base plate 4, the lower die sleeve 5 and the lower die core 6 are all internally provided with a cavity for accommodating the ejector rod mechanism 7.
The cavity for ejecting the ejection mechanism is adaptively arranged in the mold according to the connection position condition of the ejection mechanism, and the cavity can be one large cavity, such as the cavity for accommodating the main ejector rod 71 and the T-shaped ejector rod 72, or a plurality of small cavities, such as the cavity for accommodating the step ejector rod 73 in the lower mold core 6.
The die further comprises an upper die core 8, the upper die core 8 is installed above the forge piece 9, during forging, the upper die core 8 and the lower die core 6 form a forging space, and the upper die core 8 is tightly pressed with a die frame of the fixed die through a tool.
The utility model discloses a plurality of positions are ejecting to four step ejector pins 73, and the ejecting power that produces step ejector pin 73 is homogenized through annular ejector pin 74 again to increase the contact surface of ejection mechanism and piston head forging 9, can guarantee that the forging is gently ejecting, the drawing of patterns, can effectively reduce because of ejecting the hot forging deformation that produces, improve the quality of forging; wherein the T-shaped ejector rods 72 also enable the ejection force at the T-profile to be homogenized.
Example two:
as shown in fig. 1, the present embodiment is different from the first embodiment in that: the present embodiment further includes a plurality of return springs 731, the return springs 731 are sleeved outside the step mandril 73, the bottom of the lower mold core 6 is provided with deep holes for accommodating the return springs 731, the deep holes and the cavity on the upper portion of the deep holes form step holes, the return springs 731 are limited between the deep holes of the lower mold core 6 and the step surface of the step mandril 73, and the original state of the return springs 731 can be a slightly compressed state or a normal state.
The function of the reset spring 731 is to help the reset of the step ejector rod 73 after the ejection mechanism ejects the forged piece, in the ejection process, the reset spring is compressed, and after the ejection is finished, the ejection force is not exerted, and the spring has outward elasticity.
It should be noted that:
in the first and second embodiments, the main ram 71 is connected to a hydraulic cylinder. The ejection smoothness of the forged piece in automatic forging can be ensured, and the ejection force and the stroke adjustment are convenient.
The annular ejector rod 74 can be equivalent to an annular block which is divided along the corners of the lower die core 6 and is directly used as an ejector rod, so that when forging is required, the upper surface of the annular ejector rod 74 and the lower die core 6 are matched to jointly form a forming surface corresponding to the lower surface of the piston head forging 9, and meanwhile, the annular ejector rod 74 is subjected to strengthening treatment such as heat treatment and nitriding treatment to enhance the strength and the wear resistance of the annular ejector rod 74.
The die assembly and installation process is as follows: after the tool is manufactured, firstly, two (two are taken as an example here) step mandrils 73 are assembled with two return springs 731; the step mandril 73 penetrates through the lower mold core 6 and is pressed into a corresponding hole of the annular mandril 74 (preheated to 350 ℃) to realize interference fit, and the length requirements of the two mandrils (after the step mandril 72 and the annular mandril 74 are combined) after assembly are consistent; and finally, assembling the lower mold core 6 and the parts according to the drawing sequence, then installing an upper mold tool, and pressing the mold and the press workbench after adjusting the centers and the closing heights of the upper mold and the lower mold.
And (3) ejection process: the hydraulic cylinder extends out, the main ejector rod 71 moves upwards, then the T-shaped ejector rod 72, the step ejector rod 73 and the annular ejector rod 74 move upwards, the piston head forging 9 is ejected, and the reset spring 731 is compressed in the ejection process; after the ejection is finished, the hydraulic cylinder is contracted, the main ejector rod 71 returns to the initial position, the return spring 731 has outward elasticity, and the gravity of the individual ejector rod per se realizes the return of the individual ejector rod to the original position.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The piston head forging die with the annular composite ejector rod mechanism is characterized by comprising a lower die core and a lower die sleeve, wherein the lower die core is fixed in the lower die sleeve, and the top surface of the lower die core and the inner surface of the lower die sleeve form a forming surface corresponding to a piston head forge piece; the bottom of the lower die core is provided with a mandril mechanism, a cavity for accommodating the mandril mechanism is arranged in the die, and the cavity is of an up-and-down penetrating structure;
the ejector rod mechanism comprises a main ejector rod, a T-shaped ejector rod, a plurality of step ejector rods and an annular ejector rod from bottom to top in sequence, a piston head forging piece is arranged at the top of the annular ejector rod, the annular ejector rod is arranged in the lower die core, the annular ejector rod is in clearance fit with the lower die core, and the step ejector rod is fixedly connected with the bottom of the annular ejector rod.
2. The die for forging the piston head with the annular composite ejector rod mechanism according to claim 1, further comprising a base and a lower die backing plate, wherein the lower die backing plate is fixed on the base, the lower die sleeve is fixed on the lower die backing plate, and cavities for accommodating the ejector rod mechanism are formed in the base, the lower die backing plate and the lower die sleeve.
3. The piston head forging die with the annular composite ejector rod mechanism is characterized by further comprising a lower die base and an annular positioning piece, wherein the lower die base is fixed on the upper surface of the base, the annular positioning piece is arranged at the position, where the base is connected with the lower die base, and is connected with the base and the lower die base, the lower die base plate is fixed on the upper surface of the lower die base, the main ejector rod is arranged in a cavity of the base, a vertical rod of the T-shaped ejector rod is arranged in the cavity of the lower die base, and a transverse panel of the T-shaped ejector rod is limited on the upper surface of the lower die base.
4. The piston head forging die with the annular composite ejector rod mechanism as claimed in claim 1, further comprising a plurality of return springs, wherein the return springs are sleeved outside the step ejector rod and limited between the lower die core and the step surface of the step ejector rod.
5. The piston head forging die with the annular composite ejector rod mechanism as claimed in claim 4, wherein the lower die core is of a stepped structure with a small top and a large bottom, and a deep hole for accommodating a return spring is formed in the bottom of the lower die core.
6. The piston head forging die with the annular composite ejector rod mechanism as claimed in claim 1, wherein the step ejector rod is of a step structure with a large lower part and a small upper part, and the top end of the step ejector rod is connected with the annular ejector rod in an interference fit mode.
7. The piston head forging die with the annular composite ejector rod mechanism as claimed in claim 1, wherein the number of the step ejector rods is four, and the four step ejector rods are uniformly arranged on the same circumference.
8. The piston head forging die with the annular composite ejector rod mechanism as claimed in claim 1, wherein the annular ejector rod is of an annular cylindrical structure, and the thickness of the end in contact with the forging piece is larger than that of the end connected with the step ejector rod.
9. The piston head forging die with the annular composite ejector rod mechanism as claimed in claim 1, wherein the die further comprises an upper die core, the upper die core is mounted above the forging, and during forging, the upper die core and the lower die core form a forging space.
10. The piston head forging die with the annular composite carrier rod mechanism as claimed in claim 1, wherein the main carrier rod is connected to a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921199267.2U CN210412363U (en) | 2019-07-25 | 2019-07-25 | Piston head forging die with annular composite ejector rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921199267.2U CN210412363U (en) | 2019-07-25 | 2019-07-25 | Piston head forging die with annular composite ejector rod mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210412363U true CN210412363U (en) | 2020-04-28 |
Family
ID=70383313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921199267.2U Active CN210412363U (en) | 2019-07-25 | 2019-07-25 | Piston head forging die with annular composite ejector rod mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210412363U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252925A (en) * | 2019-07-25 | 2019-09-20 | 安徽安簧机械股份有限公司 | Piston head forging mold with annular compound post rod mechanism |
| CN111604425A (en) * | 2020-05-18 | 2020-09-01 | 广东润德利科技有限公司 | High-strength die frame for special die |
| WO2023229554A1 (en) * | 2022-05-25 | 2023-11-30 | Parsan Maki̇na Parçalari Sanayi̇ Anoni̇m Şi̇rketi̇ | A piston mold structure |
-
2019
- 2019-07-25 CN CN201921199267.2U patent/CN210412363U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252925A (en) * | 2019-07-25 | 2019-09-20 | 安徽安簧机械股份有限公司 | Piston head forging mold with annular compound post rod mechanism |
| CN111604425A (en) * | 2020-05-18 | 2020-09-01 | 广东润德利科技有限公司 | High-strength die frame for special die |
| WO2023229554A1 (en) * | 2022-05-25 | 2023-11-30 | Parsan Maki̇na Parçalari Sanayi̇ Anoni̇m Şi̇rketi̇ | A piston mold structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210412363U (en) | Piston head forging die with annular composite ejector rod mechanism | |
| CN101767153B (en) | Composite forming die | |
| CN110252925A (en) | Piston head forging mold with annular compound post rod mechanism | |
| CN110842128A (en) | Hub direct forging die and forging process thereof | |
| CN109622845B (en) | Closed near-net forming process and die for drum type knuckle pre-forging piece | |
| CN211413524U (en) | Hub direct forging die | |
| CN115338328A (en) | AMT clutch case and diaphragm spring assembly riveting die | |
| CN210359086U (en) | Annular composite ejector rod mechanism | |
| CN210498184U (en) | Ejection device suitable for automatic closed forging of steel piston | |
| CN109454167B (en) | Single-step forming die for integral wave-shaped sheet of clutch | |
| CN103990695A (en) | Blanking and bending compound die | |
| CN201603812U (en) | Compound forming die | |
| CN207447247U (en) | Double floating type lock ring cold closed-die forging one step forming mould | |
| CN107335768B (en) | The small gear ring radial direction wedge pressure mould of combination gear | |
| CN110252931A (en) | A kind of annular compound post rod mechanism | |
| CN214161117U (en) | Mould of blade circle on area material | |
| CN213613907U (en) | Forging die of aluminum alloy wheel with concave wheel well portion | |
| CN213436930U (en) | Forging forming die for hinge | |
| CN212239078U (en) | Double-end riveting die tool for balancing oil cylinder | |
| CN211304634U (en) | Die for preparing pre-forged piece with outer circle groove aluminum shell | |
| CN210387410U (en) | Valve cover forging die | |
| CN208513481U (en) | Upper suspension arm arm body flanging forming mold | |
| CN113399611A (en) | Friction press-based spline hub forging process | |
| CN111975291A (en) | Near-net forging forming method for precision forging of aluminum alloy special-shaped shell | |
| CN219324673U (en) | Multi-station cold heading punching die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |