CN214640278U - Improve loose mould of local density of automobile oil pump rotor - Google Patents
Improve loose mould of local density of automobile oil pump rotor Download PDFInfo
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- CN214640278U CN214640278U CN202022853740.3U CN202022853740U CN214640278U CN 214640278 U CN214640278 U CN 214640278U CN 202022853740 U CN202022853740 U CN 202022853740U CN 214640278 U CN214640278 U CN 214640278U
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Abstract
The utility model provides an improve loose mould of automobile oil pump rotor local density, including forming die and integer mould, forming die is including the shaping plug, the shaping plug overcoat is established into the upper punch that takes shape, the shaping upper punch overcoat is established into the shape bed die, shaping plug top cover is established the down punch that takes shape, the shaping bed die is including the shaping bed die cavity, the shaping upper punch gets into the shaping bed die cavity after establishing with the shaping down the cover, form automobile oil pump rotor in the shaping bed die cavity, the integer mould includes the integer plug, the integer upper punch is established to the integer plug overcoat, the integer bed die is established to the integer upper punch overcoat, the integer is down punched to integer core top cover, the integer bed die includes integer bed die cavity, the integer upper punch and the integer down the cover enter integer bed die cavity after establishing, automobile oil pump rotor puts into integer bed die intracavity integer. The utility model discloses a mould local density has all promoted with hardness, has improved the product and has add the problem that tooth portion edge peeled off man-hour, improves the wearability of product when using, has improved production efficiency by a wide margin.
Description
Technical Field
The utility model relates to an improve powder metallurgy product and make production field, concretely relates to improve loose mould of car oil pump rotor local density.
Background
Powder metallurgy is a processing method for making various products by using metal powder as a raw material and carrying out processes such as extrusion forming, sintering, finishing, machining and the like. The powder metallurgy process comprises three main steps, first the main constituent material is decomposed into a lot of powder consisting of fine particles, then the powder is loaded into the mold cavity and a certain pressure is applied to form a compact having the shape and size of the desired part. And finally, sintering, finishing, machining and the like are carried out on the pressed compact.
The essential advantage of the powder metallurgy part production process is that the final forming capacity and the material utilization rate of the part are high. The method is widely applied to manufacturing mechanical parts with complex shapes, such as automobiles, motorcycles, electric tools, hardware tools and the like.
When the automobile oil pump rotor is produced by powder metallurgy, the edge density of the tooth part is low and the structure is loose due to the factors such as powder compression and the like. And the product will have the phenomena of tooth edge peeling and the like during subsequent machining. The product needs heavy work if the product is light, and even the product is scrapped if the product is serious. Resulting in an increase in production cost and a reduction in production efficiency.
Disclosure of Invention
To exist not enough among the prior art, the utility model provides an improve loose mould of car oil pump rotor local density, simple structure and can effectively improve tooth portion edge utensil partial density. The utility model adopts the technical proposal that:
a mould for improving local density looseness of an oil pump rotor of an automobile is disclosed, wherein: the automobile engine oil pump shaping die comprises a shaping die and a shaping die, wherein the shaping die comprises a shaping core rod, a shaping upper punch is sleeved outside the shaping core rod, a shaping female die is sleeved outside the shaping upper punch, the shaping lower punch is sleeved at the top end of the shaping core rod, the shaping female die comprises a shaping female die cavity and a shaping female die cavity tooth profile part arranged on the periphery of the shaping female die cavity, the shaping upper punch and the shaping lower punch are sleeved in the shaping female die cavity, an automobile engine oil pump rotor is formed in the shaping female die cavity, the shaping die comprises a shaping core rod, a shaping upper punch is sleeved outside the shaping core rod, a shaping female die is sleeved outside the shaping upper punch, a shaping lower punch is sleeved at the top end of the shaping core rod, the shaping female die comprises a shaping female die cavity and a shaping female die cavity tooth profile part arranged on the periphery of the shaping female die cavity, and the shaping upper punch and the shaping lower punch are sleeved in the shaping female die cavity, and the automobile oil pump rotor is placed into the shaping female model cavity for shaping.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the forming core rod comprises a forming core rod head, a forming core rod connecting rod, a forming core rod separating screw and a forming core rod locking screw, the forming core rod head is arranged at the top end of the forming core rod connecting rod, the forming core rod connecting rod and the forming core rod head are fixed through the forming core rod locking screw, and the forming core rod separating screw is arranged at the bottom end of the forming core rod connecting rod.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the forming mandrel head comprises a forming mandrel head body, a countersink arranged at the top end of the forming mandrel head body and a forming mandrel head guide section arranged at the bottom end; the top end of the connecting rod of the forming mandrel is provided with a first protruding guide section which is matched with the head guide section of the forming mandrel, and the end surface of the first protruding guide section is provided with a threaded hole which is matched with the locking screw of the forming mandrel; the bottom end of the connecting rod of the forming core rod is provided with a guiding section of the connecting rod of the forming core rod, and the top of the guiding section of the connecting rod of the forming core rod is provided with a screw locking thread hole.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the forming core rod separation type screw is internally provided with a first cylinder matched with the guide section of the connecting rod of the forming core rod, the upper end face of the first cylinder is internally provided with a first thread matched with the screw locking thread hole, and the lower end face of the first cylinder is internally provided with a first thread section.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the forming upper punch is provided with a forming upper punch head, the periphery of the forming upper punch head is provided with a forming upper punch head outline part, the forming upper punch head outline part is the same as the forming female die cavity tooth-shaped outline part, and a first through hole matched with the forming core rod head body is arranged in the forming upper punch head.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: and a lower forming punch is arranged on the lower forming punch, a lower forming punch profile part is formed on the periphery of the lower forming punch, the lower forming punch profile part is the same as the tooth-shaped profile part of the forming female die cavity, and a second through hole matched with the forming core rod punch body is arranged in the lower forming punch.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the shaping female die is characterized in that a shaping female die cavity is arranged in the shaping female die (6), a shaping female die cavity tooth profile contour part is formed at the periphery of the shaping female die cavity, a product guide section is arranged on the end face of the shaping female die cavity, the depth of the product guide section is 3-10 mm, and the angle is 3-10.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the shaping mandrel comprises a shaping mandrel head, a shaping mandrel connecting rod, a shaping mandrel separating screw and a shaping mandrel locking screw, wherein the shaping mandrel head is arranged at the top end of the shaping mandrel connecting rod, the shaping mandrel head and the shaping mandrel connecting rod are fixed through the shaping mandrel locking screw, and the shaping mandrel separating screw is arranged at the bottom end of the shaping mandrel connecting rod; the shaping mandrel head comprises a shaping mandrel head body, the outer diameter of the shaping mandrel head body is the same as that of the inner hole, a through hole matched with the shaping mandrel locking screw is formed in the top end of the shaping mandrel head, and a shaping mandrel head guide section is arranged at the bottom end of the shaping mandrel head; the top end of the connecting rod of the shaping mandrel is provided with a second convex guide section which is matched with the guide section of the head of the shaping mandrel, the end surface of the second convex guide section is provided with a threaded hole which is matched with a locking screw of the shaping mandrel, the bottom end of the connecting rod of the shaping mandrel is provided with a guide section at the bottom end of the connecting rod of the shaping mandrel, and the guide section at the bottom end of the connecting rod of the shaping mandrel is provided with a locking thread hole of a separating screw of the shaping mandrel; a second cylinder matched with the guide section at the bottom end of the connecting rod of the shaping core rod is arranged in the shaping core rod separating screw; and a second screw thread matched with the shaping mandrel separating type screw locking screw thread hole is arranged in the upper end face of the second cylinder, and a second screw thread section matched with the shaping machine is arranged in the lower end face of the second cylinder.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the shaping upper punch is provided with a shaping upper punch head, the periphery of the shaping upper punch head forms a shaping upper punch head profile part, the shaping upper punch head profile part is the same as the shaping female die cavity tooth profile part, and a third through hole with the same size as the outer diameter of the shaping mandrel head body is arranged in the shaping upper punch head.
Preferably, the die for improving local density looseness of the oil pump rotor of the automobile is characterized in that: the shaping lower punch is internally provided with a shaping lower punch, the periphery of the shaping lower punch forms a shaping lower punch profile part, the shaping lower punch profile part is the same as the shaping female die cavity tooth profile part, and the shaping lower punch is internally provided with a fourth through hole matched with the shaping mandrel punch body.
The invention has the advantages that: the utility model discloses improve loose mould of automobile oil pump rotor local density, local density has all promoted with hardness, has also improved the product relatively and has add the problem that the tooth portion edge peeled off man-hour, improves the wearability of product when using, has improved production efficiency by a wide margin, has reduced manufacturing cost, and the product of messenger has more competitiveness in the market.
Drawings
Fig. 1 is an isometric view of the oil pump rotor of the present invention.
Fig. 2 is an isometric view of the female forming die of the present invention.
Fig. 3 is a cross-sectional view of the forming mandrel of the present invention.
Figure 4 is an isometric view of the forming punch of the present invention.
Figure 5 is an isometric view of the inventive punch under forming.
Fig. 6 is an assembly view of the forming mold of the present invention.
Fig. 7 is an isometric view of the shaping cavity block of the present invention.
Fig. 8 is a cross-sectional view of the shaping mandrel of the present invention.
Fig. 9 is an isometric view of the integer punch of the present invention.
Figure 10 is an isometric view of the present invention punch under the integer.
Fig. 11 is an assembly drawing of the shaping mold of the present invention.
Fig. 12 is a comparison diagram of the original design tooth profile of the cavity and the oil pump rotor after the modification of the forming female die of the present invention.
Detailed Description
The invention is further described with reference to the following specific drawings and examples.
Example 1
Powder metallurgy during the production process, a die is an inevitable key tool. The invention relates to a method for improving the edge density of a tooth part, which is provided by changing the profile of the tooth shape of a cavity of a forming and shaping die on the premise of not increasing the production process and the production cost.
As shown in fig. 1 to 11, the embodiment provides a mold for improving local density porosity of an oil pump rotor of an automobile, wherein: the automobile engine oil pump rotor forming die comprises a forming die and a shaping die, wherein the forming die comprises a forming core rod 3, a forming upper punch 4 is sleeved outside the forming core rod 3, a forming female die 2 is sleeved outside the forming upper punch 4, the forming female die 4 is sleeved outside a forming female die 2, the forming female die 2 comprises a forming female die cavity 2-1 and a forming female die cavity tooth-shaped outline part 2-2 arranged on the periphery of the forming female die cavity 2-1, the forming upper punch 4 and the forming lower punch 5 are sleeved and then enter the forming female die cavity 2-1, an automobile engine oil pump rotor 1 is formed in the forming female die cavity 2-1, the shaping die comprises a shaping core rod 7, a shaping upper punch 8 is sleeved outside the shaping core rod 7, a shaping female die 6 is sleeved outside the shaping upper punch 8, a shaping lower punch 9 is sleeved on the top end of the shaping core rod 7, and the shaping female die 6 comprises a shaping female die cavity 6-1 and a shaping die cavity 6-1 arranged on the periphery of the shaping female die cavity 6-1 The oil pump rotor of the automobile is characterized in that a tooth-shaped outline part 6-2 of a cavity of a shaping female die, the shaping upper punch 8 and the shaping lower punch 9 are sleeved and then enter the cavity 6-1 of the shaping female die, and the rotor 1 of the oil pump of the automobile is placed into the cavity 6-1 of the shaping female die for shaping.
Wherein: the forming core rod 3 comprises a forming core rod head 3-1, a forming core rod connecting rod 3-2, a forming core rod separating type screw 3-3 and a forming core rod locking screw (3-4), the top end of the forming core rod connecting rod (3-2) is provided with the forming core rod head 3-1, the forming core rod connecting rod 3-2 and the forming core rod head 3-1 are fixed through the forming core rod locking screw 3-4, and the bottom end of the forming core rod connecting rod 3-2 is provided with the forming core rod separating type screw 3-3.
Wherein: the forming mandrel head 3-1 comprises a forming mandrel head body 3-1-1, a countersink 3-1-2 arranged at the top end of the forming mandrel head body 3-1-1 and a forming mandrel head guide section 3-1-3 arranged at the bottom end; the top end of the forming mandrel connecting rod 3-2 is provided with a first protruding guide section 3-2-1 matched with the forming mandrel head guide section 3-1-3, and the end face of the first protruding guide section 3-2-1 is provided with a threaded hole 3-2-2 matched with the forming mandrel locking screw 3-4; the bottom end of the forming core rod connecting rod 3-2 is provided with a forming core rod connecting rod guiding section 3-2-3, and the top of the forming core rod connecting rod guiding section 3-2-3 is provided with a screw locking thread hole 3-2-4.
The forming core rod head body 3-1-1 is the same as an inner hole 1-2 arranged in an oil pump rotor 1 of an automobile, and the specific depth of a forming core rod head guide section 3-1-3 is 2-5 mm;
wherein: the forming core rod separating type screw 3-3 is internally provided with a first cylinder 3-3-1 matched with a connecting rod guide section 3-2-3 of the forming core rod, the upper end face of the first cylinder 3-3-1 is internally provided with a first screw thread 3-3-2 matched with a screw locking screw thread hole 3-2-4, and the lower end face of the first cylinder 3-3-1 is internally provided with a screw thread section 3-3-3.
The specific length of the first cylinder 3-3-1 is higher than the depth of the guide section 3-2-3 of the connecting rod of the forming core rod by 2-5 mm.
Wherein: the forming upper punch 4 is provided with a forming upper punch 4-1, the periphery of the forming upper punch 4-1 is provided with a forming upper punch profile part 4-2, the forming upper punch profile part 4-2 is the same as the forming female die cavity tooth profile part 2-2, and the forming upper punch 4-1 is provided with a first through hole 4-3 matched with the forming core rod head body 3-1-1.
Wherein: the lower forming punch 5 is provided with a lower forming punch 5-1, the periphery of the lower forming punch 5-1 forms a lower forming punch profile 5-2, the lower forming punch profile 5-2 is the same as the tooth-shaped profile 2-2 of the forming female die cavity, and a second through hole 5-3 matched with the forming core rod punch body 3-1-1 is arranged in the lower forming punch 5-1.
Wherein: the oil pump rotor of the automobile is characterized in that a tooth-shaped profile part 1-1 is formed on the periphery of the oil pump rotor 1 of the automobile, an inner hole 1-2 is formed in the middle of the oil pump rotor 1 of the automobile, a shaping female die cavity 6-1 is arranged in the shaping female die 6, a shaping female die cavity tooth-shaped profile part 6-2 identical to the tooth-shaped profile part 1-1 is formed on the periphery of the shaping female die cavity 6-1, a product guide section 6-3 is arranged on the end face of the shaping female die cavity 6-1, the depth of the product guide section 6-3 is 3-10 mm, and the angle is 3-10.
Because the modified tooth profile is larger than the tooth profile part 6-2 of the shaping female die cavity of the shaping female die after being sintered, in order to lead the sintered blank into the cavity 6-1 of the shaping female die smoothly, a product guide section 6-3 with the depth of 3-10 mm in the whole circumference and the angle of 3-10 degrees is set at the end surface of the cavity of the shaping female die, so that the product can smoothly and effectively enter the cavity 6-1 of the shaping female die in the shaping process.
Wherein: the shaping mandrel 7 comprises a shaping mandrel head 7-1, a shaping mandrel connecting rod 7-2, a shaping mandrel separating screw 7-3 and a shaping mandrel locking screw 7-4, the shaping mandrel head 7-1 is arranged at the top end of the shaping mandrel connecting rod 7-2, the shaping mandrel head 7-1 and the shaping mandrel connecting rod 7-2 are fixed through the shaping mandrel locking screw 7-4, and the shaping mandrel separating screw 7-3 is arranged at the bottom end of the shaping mandrel connecting rod 7-2; the shaping mandrel head 7-1 comprises a shaping mandrel head body 7-1-1, the outer diameter of the shaping mandrel head body 7-1-1 is the same as that of the inner hole 1-2, a through hole 7-1-2 matched with a shaping mandrel locking screw 7-4 is arranged at the top end of the shaping mandrel head 7-1, and a shaping mandrel head guide section 7-1-3 is arranged at the bottom end of the shaping mandrel head 7-1; the top end of the shaping mandrel connecting rod 7-2 is provided with a second convex guide section 7-2-1 matched with the shaping mandrel head guide section 7-1-3, the end face of the second convex guide section 7-2-1 is provided with a threaded hole 7-2-2 matched with the shaping mandrel locking screw 7-4, the bottom end of the shaping mandrel connecting rod 7-2 is provided with a shaping mandrel connecting rod bottom end guide section 7-2-3, and the shaping mandrel connecting rod bottom end guide section 7-2-3 is provided with a shaping mandrel separated screw locking thread hole 7-2-4; a second cylinder 7-3-1 matched with a guide section 7-2-3 at the bottom end of a connecting rod of the shaping core rod is arranged in the shaping core rod separating screw 7-3; a second thread 7-3-2 matched with the shaping core rod separated screw locking thread hole 7-2-4 is arranged in the upper end face of the second cylinder 7-3-1, and a second thread section 7-3-3 matched with the shaping machine is arranged in the lower end face of the second cylinder 7-3-1.
The specific depth of the shaping mandrel head guide section 7-1-3 is 2-5 mm, and the specific length of the cylinder 7-3-1 is 2-5 mm higher than the depth of the guide section (7-2-3) at the bottom end of the connecting rod of the shaping mandrel.
Wherein: the shaping upper punch 8 is provided with an shaping upper punch 8-1, the periphery of the shaping upper punch 8-1 forms an shaping upper punch outline part 8-2, the shaping upper punch outline part 8-2 is the same as the shaping female die cavity tooth-shaped outline part 6-2, and a third through hole 8-3 with the same outer diameter size as the shaping mandrel head body 7-1-1 is arranged in the shaping upper punch 8-1.
The lower shaping punch 9 is internally provided with a lower shaping punch 9-1, the periphery of the lower shaping punch 9-1 forms a lower shaping punch profile part 9-2, the lower shaping punch profile part 9-2 is the same as the tooth-shaped profile part 6-2 of the shaping female die cavity, and the lower shaping punch 9-1 is internally provided with a fourth through hole 9-3 matched with the shaping mandrel punch body 7-1-1.
Generally, when an automobile oil pump rotor 1 is designed in a powder metallurgy die, a forming female die cavity tooth profile part 2-2 of a forming female die cavity 2-1 is designed to be consistent with an originally designed tooth profile part 1-1 of the oil pump rotor, the invention modifies the forming female die cavity tooth profile part 2-2 of the forming female die cavity 2-1 to cause local difference with the originally designed tooth profile part 1-1 of the oil pump rotor, after a product is formed and sintered, because the forming female die cavity tooth profile part 2-2 is modified, the profile of the sintered tooth profile edge of the product is relatively larger compared with the originally designed tooth profile part 1-1 of the automobile oil pump rotor 1, and the forming female die cavity tooth profile 6-2 is manufactured by the originally designed tooth profile part 1-1, when the product is in the shaping process, because the shaping female die cavity tooth-shaped profile part 6-2 is designed and manufactured by the tooth-shaped profile part 1-1 originally designed for the oil pump rotor of the automobile, the larger tooth-shaped edge profile of the product after sintering can be extruded by the shaping female die cavity tooth-shaped profile part 6-2 of the shaping female die 6, and further the redundant meat is extruded into the tooth-shaped edge of the product, so that the tooth-shaped density of the tooth-shaped edge of the product is increased.
The forming core rod 3 is specifically assembled and positioned by assembling and positioning a forming core rod head guide section 3-1-3 arranged in a forming core rod 3-1 and a first convex guide section 3-2-1 arranged in a forming core rod connecting rod 3-2, then screwing a forming core rod locking screw 3-4 into a threaded hole 3-2-2 from top to bottom through a matched countersink 3-1-2, tightly combining the forming core rod head 3-1 and the forming core rod connecting rod 3-2, screwing a first screw thread 3-3-2 arranged in the upper end surface of a first cylinder 3-3-1 in a forming core rod separating type screw 3-3 into a screw locking screw thread hole 3-2-4, and performing center guide by utilizing the first cylinder 3-3-1 and the forming core rod connecting rod guide section 3-2-3, and tightly combining the connecting rod of the forming core rod with the separated screw 3-3 of the forming core rod.
When the forming die body is assembled, a forming core rod 3 is locked on a forming machine in advance, a second through hole 5-3 arranged in a forming lower punch 4 is aligned with a forming core rod body 3-1-1 arranged in the forming core rod 4-1, the lower punch 5-1 is placed upwards and fixed on the forming machine from top to bottom, a forming cavity tooth-shaped profile part 2-2 in a forming female die 2 is aligned to form a forming lower punch profile part 5-2 and then placed from top to bottom and fixed in the forming machine, a forming upper punch 4-1 arranged on the forming upper punch 4 is placed downwards, the forming upper punch profile part 4-2 is aligned to the forming cavity tooth-shaped profile part 2-2 and then placed in a forming female die cavity 2-1 arranged on the forming female die 2 and fixed on a machine table.
Filling powder into the female die during formingIn the cavity 2-1, a forming pressure of 4-6 tons per square centimeter is applied to obtain a density of 6.7-6.9 g/cm3The tooth edge density of the formed blank is lower due to the factors of lower powder pressure and the like, and is only about 6.4-6.6 g/cm3The edge structure of the tooth part is looser, but the tooth part edge of the oil pump rotor blank is larger than the original profile design after the oil pump rotor blank is sintered because the tooth profile part 2-2 of the forming female die cavity arranged in the forming female die 2 is modified, and the tooth profile of the oil pump rotor 1 blank is corrected to the original designed tooth profile part 1-1 by utilizing the shaping process.
The shaping mandrel 7 is specifically assembled and positioned by assembling and positioning a shaping mandrel head guide section 7-1-3 arranged in a shaping mandrel head 7-1 and a second convex guide section 7-2-1 arranged in a shaping mandrel connecting rod 7-2, then screwing a shaping mandrel locking screw 7-4 into a threaded hole 7-2-2 from top to bottom through a matched through hole 7-1-2, tightly combining the shaping mandrel head 7-1 and a shaping mandrel connecting rod 7-2, screwing a second screw thread 7-3-2 arranged in the upper end surface of a second cylinder 7-3-1 in a shaping mandrel separating screw 7-3 into a shaping mandrel separating screw locking screw thread hole 7-2-4, and performing center guide by using the second cylinder 7-3-1 and a shaping mandrel connecting rod bottom end guide section 7-2-3, tightly combining the connecting rod of the shaping core rod with the separated screw 7-3 of the shaping core rod.
When the shaping die body is assembled, a shaping core rod 7 is locked on the shaping machine in advance, a fourth through hole 9-3 formed in a shaping lower punch 9 is aligned with the external dimension 7-1-1 formed in a shaping core rod head 7-1, the shaping lower punch 9-1 is placed upwards and fixed on the shaping machine from top to bottom, a shaping female die cavity tooth-shaped profile part 6-2 in a shaping female die 6 is aligned with a shaping lower punch profile part 9-2 and then placed from top to bottom and fixed in the shaping machine, a shaping upper punch 8 is provided with a shaping upper punch 8-1, the punch is placed downwards, the shaping lower punch profile part 9-2 is aligned with the shaping female die cavity tooth-shaped profile part 6-2 and then placed in a shaping female die cavity 6-1 arranged in the shaping female die 6 and fixed on a machine table.
Setting the sintered oil pump rotor blank in the shaping female die 6The product guide section 6-3 is placed into the shaping female die cavity 6-1, pressure is applied to the oil pump rotor blank by utilizing the shaping upper punch 8 and the shaping lower punch 9, the tooth profile of the oil pump rotor blank is limited by the tooth profile outline part 6-2 of the shaping female die cavity, the edge of a tooth part with a larger tooth profile of the oil pump rotor blank can be extruded into the oil pump rotor blank, the local density of the tooth part edge tooth profile is further increased, the problem of lower tooth part edge density is solved, and the oil pump rotor produced by the die modified in the novel mode can be actually tested from the original 6.4-6.6 g/cm in tooth profile edge local density3Increasing the concentration to 6.7-6.9 g/cm3The hardness can be increased from HRB 60-63 to HRB 65-70. Therefore, compared with the prior art, the local density and hardness are improved, the problem that the edges of the teeth of the product are peeled off during processing is relatively solved, the wear resistance of the product during use is improved, the production efficiency is greatly improved, the production cost is reduced, and the product has higher competitiveness in the market.
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 (10)
1. The utility model provides an improve loose mould of local density of automobile oil pump rotor which characterized in that: the automobile engine oil pump forming die comprises a forming die and a shaping die, wherein the forming die comprises a forming core rod (3), a forming upper punch (4) is sleeved outside the forming core rod (3), a forming female die (2) is sleeved outside the forming upper punch (4), a forming lower punch (5) is sleeved at the top end of the forming core rod (3), the forming female die (2) comprises a forming female die cavity (2-1) and a forming female die cavity tooth profile outline part (2-2) arranged on the periphery of the forming female die cavity (2-1), the forming upper punch (4) and the forming lower punch (5) are sleeved and then enter the forming female die cavity (2-1), an automobile engine oil pump rotor (1) is formed in the forming female die cavity (2-1), the shaping die comprises a shaping core rod (7), a shaping upper punch (8) is sleeved outside the shaping core rod (7), a shaping female die (6) is sleeved outside the shaping upper punch (8), the top end of the shaping core rod (7) is sleeved with a shaping lower punch (9), the shaping female die (6) comprises a shaping female die cavity (6-1) and a shaping female die cavity tooth-shaped profile part (6-2) arranged on the periphery of the shaping female die cavity (6-1), the shaping upper punch (8) and the shaping lower punch (9) are sleeved and then enter the shaping female die cavity (6-1), and the automobile oil pump rotor (1) is placed into the shaping female die cavity (6-1) for shaping.
2. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 1, characterized in that: the forming core rod (3) comprises a forming core rod head (3-1), a forming core rod connecting rod (3-2), a forming core rod separating type screw (3-3) and a forming core rod locking screw (3-4), the forming core rod head (3-1) is arranged at the top end of the forming core rod connecting rod (3-2), the forming core rod connecting rod (3-2) and the forming core rod head (3-1) are fixed through the forming core rod locking screw (3-4), and the forming core rod separating type screw (3-3) is arranged at the bottom end of the forming core rod connecting rod (3-2).
3. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 2, characterized in that: the forming mandrel head (3-1) comprises a forming mandrel head body (3-1-1), a countersink (3-1-2) arranged at the top end of the forming mandrel head body (3-1-1) and a forming mandrel head guide section (3-1-3) arranged at the bottom end; the top end of the forming core rod connecting rod (3-2) is provided with a first protruding guide section (3-2-1) matched with the forming core rod head guide section (3-1-3), and the end face of the first protruding guide section (3-2-1) is provided with a threaded hole (3-2-2) matched with the forming core rod locking screw (3-4); the bottom end of the forming core rod connecting rod (3-2) is provided with a forming core rod connecting rod guiding section (3-2-3), and the top of the forming core rod connecting rod guiding section (3-2-3) is provided with a screw locking thread hole (3-2-4).
4. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 3, wherein: the forming core rod separation type screw (3-3) is internally provided with a first cylinder (3-3-1) matched with a forming core rod guide section (3-2-3), the upper end face of the first cylinder (3-3-1) is internally provided with a first thread (3-3-2) matched with a screw locking thread hole (3-2-4), and the lower end face of the first cylinder (3-3-1) is internally provided with a first thread section (3-3-3).
5. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 3, wherein: the forming upper punch (4) is provided with a forming upper punch head (4-1), the periphery of the forming upper punch head (4-1) is provided with a forming upper punch head contour part (4-2), the forming upper punch head contour part (4-2) is the same as the forming female die cavity tooth-shaped contour part (2-2), and a first through hole (4-3) matched with the forming core rod head body (3-1-1) is arranged in the forming upper punch head (4-1).
6. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 3, wherein: the lower forming punch (5) is provided with a lower forming punch (5-1), the periphery of the lower forming punch (5-1) forms a lower forming punch profile (5-2), the lower forming punch profile (5-2) is the same as the tooth-shaped profile (2-2) of the forming female die cavity, and a second through hole (5-3) matched with the lower forming punch body (3-1-1) is formed in the lower forming punch (5-1).
7. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 1, characterized in that: the shaping female die is characterized in that a shaping female die cavity (6-1) is arranged in the shaping female die (6), a shaping female die cavity tooth-shaped profile part (6-2) is formed at the periphery of the shaping female die cavity (6-1), a product guide section (6-3) is arranged on the end face of the shaping female die cavity (6-1), the depth of the product guide section (6-3) is 3-10 mm, and the angle is 3-10 degrees.
8. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 7, wherein: the shaping mandrel (7) comprises a shaping mandrel head (7-1), a shaping mandrel connecting rod (7-2), a shaping mandrel separating screw (7-3) and a shaping mandrel locking screw (7-4), the shaping mandrel head (7-1) is arranged at the top end of the shaping mandrel connecting rod (7-2), the shaping mandrel head (7-1) and the shaping mandrel connecting rod (7-2) are fixed through the shaping mandrel locking screw (7-4), and the shaping mandrel separating screw (7-3) is arranged at the bottom end of the shaping mandrel connecting rod (7-2); the shaping mandrel head (7-1) comprises a shaping mandrel head body (7-1-1), the outer diameter of the shaping mandrel head body (7-1-1) is the same as that of the inner hole (1-2), a straight through hole (7-1-2) matched with the shaping mandrel locking screw (7-4) is formed in the top end of the shaping mandrel head (7-1), and a shaping mandrel head guide section (7-1-3) is arranged at the bottom end of the shaping mandrel head (7-1); the top end of the shaping mandrel connecting rod (7-2) is provided with a second convex guide section (7-2-1) matched with the shaping mandrel head guide section (7-1-3), the end face of the second convex guide section (7-2-1) is provided with a threaded hole (7-2-2) matched with the shaping mandrel locking screw (7-4), the bottom end of the shaping mandrel connecting rod (7-2) is provided with a shaping mandrel connecting rod bottom guide section (7-2-3), and the shaping mandrel connecting rod bottom guide section (7-2-3) is provided with a shaping mandrel separated screw locking thread hole (7-2-4); a second cylinder (7-3-1) which is matched with a guide section (7-2-3) at the bottom end of a connecting rod of the shaping mandrel is arranged in the separating screw (7-3) of the shaping mandrel; a second thread (7-3-2) matched with the shaping core rod separated screw locking thread hole (7-2-4) is arranged in the upper end face of the second cylinder (7-3-1), and a second thread section (7-3-3) matched with the shaping machine is arranged in the lower end face of the second cylinder (7-3-1).
9. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 8, wherein: the shaping upper punch is characterized in that a shaping upper punch head (8-1) is arranged on the shaping upper punch (8), a shaping upper punch head contour part (8-2) is formed on the periphery of the shaping upper punch head (8-1), the shaping upper punch head contour part (8-2) is the same as a shaping female die cavity tooth-shaped contour part (6-2), and a third through hole (8-3) with the same outer diameter size as that of a shaping mandrel head body (7-1-1) is formed in the shaping upper punch head (8-1).
10. The mold for improving the local density porosity of the oil pump rotor of the automobile according to claim 8, wherein: the lower shaping punch is characterized in that a lower shaping punch head (9-1) is arranged in the lower shaping punch head (9), a lower shaping punch head contour part (9-2) is formed on the periphery of the lower shaping punch head (9-1), the lower shaping punch head contour part (9-2) is the same as the tooth-shaped contour part (6-2) of the shaping female die cavity, and a fourth through hole (9-3) matched with the lower shaping punch head body (7-1-1) is arranged in the lower shaping punch head (9-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022853740.3U CN214640278U (en) | 2020-12-01 | 2020-12-01 | Improve loose mould of local density of automobile oil pump rotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022853740.3U CN214640278U (en) | 2020-12-01 | 2020-12-01 | Improve loose mould of local density of automobile oil pump rotor |
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| Publication Number | Publication Date |
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| CN214640278U true CN214640278U (en) | 2021-11-09 |
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| CN202022853740.3U Active CN214640278U (en) | 2020-12-01 | 2020-12-01 | Improve loose mould of local density of automobile oil pump rotor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589096A (en) * | 2020-12-01 | 2021-04-02 | 青志(无锡)粉末铸锻有限公司 | Improve loose mould of local density of automobile oil pump rotor |
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2020
- 2020-12-01 CN CN202022853740.3U patent/CN214640278U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589096A (en) * | 2020-12-01 | 2021-04-02 | 青志(无锡)粉末铸锻有限公司 | Improve loose mould of local density of automobile oil pump rotor |
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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 |
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