CN210907442U - Wheel limit supporting shaft thermoforming crack control mould reaches mould subassembly including it - Google Patents
Wheel limit supporting shaft thermoforming crack control mould reaches mould subassembly including it Download PDFInfo
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- CN210907442U CN210907442U CN201921534120.4U CN201921534120U CN210907442U CN 210907442 U CN210907442 U CN 210907442U CN 201921534120 U CN201921534120 U CN 201921534120U CN 210907442 U CN210907442 U CN 210907442U
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Abstract
The utility model relates to an axle type part thermoforming extrusion die field especially relates to a wheel limit supporting shaft thermoforming crack control mould reaches mould assembly including it, wheel limit supporting shaft thermoforming crack control mould includes upper end moulded die and lower extreme moulded die, the upper end moulded die includes the bottom and is located the spacing portion of bottom upside, spacing portion has columniform one-tenth die cavity, the bottom corresponds the position department in one-tenth die cavity is equipped with and is used for the cartridge to be in cartridge hole on the lower extreme moulded die, wherein the bottom with spacing portion towards the handing-over position department of the lateral wall in one-tenth die cavity is equipped with the dashpot sunken below, be equipped with the intercommunication in the dashpot the outside exhaust hole of upper end moulded die. The utility model discloses thereby the blank can continue to warp to the dashpot in during the use and alleviate the blank because pressurize or excessive extrusion to the excessive extrusion force that becomes the die cavity lateral wall and produce, and then reduce the fracture frequency, improve life.
Description
Technical Field
The utility model relates to an axle type part thermoforming extrusion die field especially relates to a wheel limit supporting shaft thermoforming crack control mould reaches mould subassembly including it.
Background
The engineering machinery vehicle is an important component of equipment industry, and the wheel edge supporting shaft is a key part in the engineering machinery vehicle, so the market demand for the wheel edge supporting shaft is large. The primary process of manufacturing a wheel edge supporting shaft product is mold design, in order to reduce stress concentration in the existing mold, a corner or a turning part is usually set to be in a shape of circular arc transition, but in the process of mass production of the product, the structure often cracks due to overlarge extrusion force, and at the moment, the mold needs to be replaced, but the mold is complex in structure and large in self weight, wastes time and labor in the replacement process, and influences the production efficiency, and if the cracking frequency of the mold can be reduced and the service life of the mold can be prolonged, the quality and the efficiency of production can be improved, and the competitiveness of enterprises can be increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wheel limit supporting shaft thermoforming crack control mould to solve the problem that the mould is easy to split among the prior art. Still provide simultaneously one kind and include the mould subassembly of above-mentioned wheel limit supporting axle thermoforming crack control mould.
The utility model discloses a wheel limit supporting shaft thermoforming crack control mould adopts following technical scheme:
the upper end forming die comprises a bottom and a limiting part positioned on the upper side of the bottom, the limiting part is provided with a cylindrical forming cavity, an insertion hole for inserting the upper end forming die is formed in the position, corresponding to the forming cavity, of the bottom, a buffer groove which is sunken downwards is formed in the position, facing the side wall of the forming cavity, of the bottom and the limiting part, a blank positioned in the forming cavity deforms and extrudes the side wall, and then deforms in the buffer groove to buffer and reduce extrusion force at the position of the connection, and an exhaust hole communicated with the outside of the upper end forming die is formed in the buffer groove.
The limiting part is of a cylindrical structure, an inner cavity of the limiting part forms the forming cavity, and the outer wall of the limiting part is in a conical shape with a small upper part and a large lower part, so that the deformation resistance of the limiting part in the horizontal direction is enhanced.
The included angle between the bus of the outer wall of the limiting part and the vertical plane is 0-20 degrees.
The vent holes are arranged to be inclined downwards so as to prevent foreign matters from entering and causing blockage.
And an extrusion cavity which corresponds to the molding cavity and is reduced in a step shape from top to bottom is arranged in the lower end molding die, and the reduction position of at least one part of the extrusion cavity from top to bottom is an inclined surface structure which forms an included angle of 45 degrees with a horizontal plane.
The utility model discloses a mould assembly adopts following technical scheme:
a mold assembly comprises a wheel-side supporting shaft thermal forming anti-cracking mold, a limiting hoop sleeved at the upper end of the wheel-side supporting shaft thermal forming anti-cracking mold and used for limiting the same, and an upper pressure head and a lower pressure head which are respectively movably arranged in the upper end and the lower end of the wheel-side supporting shaft thermal forming anti-cracking mold in a penetrating mode, wherein the wheel-side supporting shaft thermal forming anti-cracking mold comprises an upper end forming mold and a lower end forming mold which are vertically inserted together, the upper end forming mold comprises a bottom and a limiting part located on the upper side of the bottom, the limiting part is provided with a cylindrical forming cavity, an insertion hole used for being inserted into the lower end forming mold is formed in the position, corresponding to the forming cavity, of the bottom, a buffer groove which is recessed downwards is formed in the position, facing the side wall of the forming cavity, of the bottom and the limiting part, a buffer groove is formed in the position, a, And the extrusion force at the joint position is reduced, and an exhaust hole communicated with the outside of the upper end forming die is formed in the buffer groove.
The limiting part is of a cylindrical structure, an inner cavity of the limiting part forms the forming cavity, and the outer wall of the limiting part is in a conical shape with a small upper part and a large lower part, so that the deformation resistance of the limiting part in the horizontal direction is enhanced.
The included angle between the bus of the outer wall of the limiting part and the vertical plane is 0-20 degrees.
The vent holes are arranged to be inclined downwards so as to prevent foreign matters from entering and causing blockage.
And an extrusion cavity which corresponds to the molding cavity and is reduced in a step shape from top to bottom is arranged in the lower end molding die, and the reduction position of at least one part of the extrusion cavity from top to bottom is an inclined surface structure which forms an included angle of 45 degrees with a horizontal plane.
The utility model has the advantages that: the utility model discloses handing-over position department that is located the shaping intracavity in the spacing portion of upper end moulded die and bottom has set up the dashpot sunken downwards, after on the lateral wall that becomes the die cavity blank warp and extrude to the shaping chamber, thereby the blank can continue to warp in the dashpot and alleviate the blank because pressurize or excessive extrusion to the excessive extrusion force that becomes the die cavity lateral wall and produce, and then make the upper end moulded die have bearing capacity on a relatively large scale, the exhaust hole also can be to the shaping chamber decompression in the extrusion simultaneously, prevent because of the atmospheric pressure increase aggravation upper end moulded die that the shaping intracavity bore the extrusion force, consequently the utility model discloses can reduce the fracture frequency, improve life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of a specific embodiment of a mold assembly according to the present invention;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
FIG. 3 is an enlarged schematic view of detail B of FIG. 1;
in the figure: 1. an upper pressure head; 2. a blank; 3. a limiting hoop; 31. a through hole; 4. forming the upper end of the mould; 41. an exhaust hole; 42. a molding cavity; 43. a buffer tank; 401. a bottom; 402. a limiting part; 5. a lower end forming die; 51. an extrusion chamber; 6. and (4) a lower pressure head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses an embodiment of a mould subassembly, as shown in fig. 1 to fig. 3, a mould subassembly, including wheel limit supporting axle thermoforming crack control mould and cover establish in order to its spacing hoop 3 in wheel limit supporting axle thermoforming crack control mould upper end, be equipped with on the spacing hoop 3 and be used for fixing bolt to wear the through-hole 31 of dress, still wear the dress including the activity respectively and go up pressure head 1 and lower pressure head 6 in wheel limit supporting axle thermoforming crack control mould upper and lower both ends.
Wheel limit supporting axle thermoforming crack control mould is including inserting upper end moulded die 4 and lower extreme moulded die 5 together from top to bottom, upper end moulded die 4 includes bottom 401 and the spacing portion 402 that is located the bottom 401 upside, spacing portion 402 has columniform shaping chamber 42, bottom 401 is equipped with the cartridge hole that is used for inserting on lower extreme moulded die 5 corresponding to the position department of shaping chamber 42, wherein bottom 401 and spacing portion 402 are equipped with the dashpot 43 of sunken below towards the handing-over position department of the lateral wall of shaping chamber 42, thereby the extrusion force of handing-over position department is alleviated to the dashpot 43 internal deformation behind the blank 2 deformation and the extrusion lateral wall that is located shaping chamber 42, be equipped with the exhaust hole 41 of intercommunication upper end moulded die 4 outside in the dashpot 43.
In this embodiment, the limiting portion 402 is a cylindrical structure, the inner cavity of the limiting portion forms the forming cavity 42, the outer wall of the limiting portion 402 is tapered from top to bottom to enhance the deformation resistance of the limiting portion 402 in the horizontal direction, and the included angle between the generatrix of the outer wall of the limiting portion 402 and the vertical plane is 10 °.
In other embodiments, the limiting part can also be in the shape of a square cylinder and the like; the included angle between the generatrix of the outer wall of the limiting part and the vertical plane can be any degree within 0-20 degrees except 10 degrees.
In the present embodiment, the air discharge hole 41 is inclined downward by 45 ° to prevent foreign materials from entering and causing clogging; in other embodiments the angle of inclination may be any degree from 0 to 90.
The lower end forming die 5 is internally provided with an extrusion cavity 51 which corresponds to the forming cavity 42 and is reduced in a step shape from top to bottom, and the reduction position of the extrusion cavity 51 above is an inclined plane structure with an included angle of 45 degrees with the horizontal plane, so that the stress concentration of the lower end forming die 5 is reduced in the extrusion process, the cracking frequency is reduced, and the service life is prolonged.
In other embodiments, at least one of the narrowing positions of the extrusion cavity from top to bottom can be a bevel structure with an included angle of 45 degrees with the horizontal plane according to actual conditions.
The upper pressure head 1 is movably arranged in the molding cavity 42 in a penetrating way up and down, and the lower pressure head 6 is movably arranged in the extrusion cavity 51 in a penetrating way up and down.
In other embodiments, the upper forming die, the lower forming die and the spacing collar can be integrally manufactured.
During the specific use, at first extrude the mound with blank 2 heating back, put into extrusion chamber 51 and shaping chamber 42 again, go up pressure head 1 and push down under the drive of hold-down mechanism and carry out forward extrusion, blank 2 walks down earlier, then lower pressure head 6 pushes up under the drive of hold-down mechanism and carries out backward extrusion, final extrusion, wherein go up pressure head 1 and lower pressure head 6 and all pass through oil press etc. drive, above-mentioned forming method has avoided only carrying out the big and unbalanced condition of mould atress that forward extrusion leads to, increases mould life.
The utility model discloses handing-over position department that spacing portion 402 and bottom 401 of upper end moulded die 4 are located into die cavity 42 has set up the dashpot 43 of undercut, after blank 2 among the die cavity 42 warp and extrudees to the lateral wall of die cavity 42, thereby blank 2 can continue to warp the buffering in dashpot 43, alleviate blank 2 because pressurize or excessive extrusion to the excessive extrusion force that the die cavity 42 lateral wall produced, and then make upper end moulded die 4 have bearing capacity on a large scale, exhaust hole 41 also can decompress to the die cavity 42 among the extrusion simultaneously, prevent because of the increase of atmospheric pressure in the die cavity 42 aggravates the extrusion force that upper end moulded die 4 bore, consequently the utility model discloses can reduce the fracture frequency, improve life.
A thermal forming anti-cracking die for a wheel side supporting shaft is provided, which is as above and is not repeated.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a wheel limit supporting shaft thermoforming crack control mould, includes upper end moulded die and lower extreme moulded die that the cartridge is in the same place from top to bottom, its characterized in that: the upper end forming die comprises a bottom and a limiting portion located on the upper side of the bottom, the limiting portion is provided with a cylindrical forming cavity, an insertion hole used for being inserted into the lower end forming die is formed in the position, corresponding to the forming cavity, of the bottom, a buffer groove sunken downwards is formed in the position, facing the connecting position of the side wall of the forming cavity, of the bottom and the limiting portion, a blank located in the forming cavity deforms and extrudes the side wall, then the blank deforms in the buffer groove, extrusion force of the connecting position is buffered and relieved, and an exhaust hole communicated with the outside of the upper end forming die is formed in the buffer groove.
2. The thermal forming anti-cracking die for the wheel rim support shaft as claimed in claim 1, wherein: the limiting part is of a cylindrical structure, an inner cavity of the limiting part forms the forming cavity, and the outer wall of the limiting part is in a conical shape with a small upper part and a large lower part, so that the deformation resistance of the limiting part in the horizontal direction is enhanced.
3. The thermal forming anti-cracking die for the wheel rim support shaft as claimed in claim 2, wherein: the included angle between the bus of the outer wall of the limiting part and the vertical plane is 0-20 degrees.
4. The thermal forming anti-cracking die for the wheel rim support shaft as claimed in claim 1, 2 or 3, wherein: the vent holes are arranged to be inclined downwards so as to prevent foreign matters from entering and causing blockage.
5. The thermal forming anti-cracking die for the wheel rim support shaft as claimed in claim 1, wherein: and an extrusion cavity which corresponds to the molding cavity and is reduced in a step shape from top to bottom is arranged in the lower end molding die, and the reduction position of at least one part of the extrusion cavity from top to bottom is an inclined surface structure which forms an included angle of 45 degrees with a horizontal plane.
6. The utility model provides a mould assembly, includes wheel limit supporting axle thermoforming crack control mould and cover and establishes wheel limit supporting axle thermoforming crack control mould upper end is in order to its spacing hoop, still including respectively the activity wear the dress in the last pressure head and the lower pressure head in wheel limit supporting axle thermoforming crack control mould upper and lower both ends, wheel limit supporting axle thermoforming crack control mould includes upper end moulded die and lower extreme moulded die that cartridge is in the same place from top to bottom, its characterized in that: the upper end forming die comprises a bottom and a limiting portion located on the upper side of the bottom, the limiting portion is provided with a cylindrical forming cavity, an insertion hole used for being inserted into the lower end forming die is formed in the position, corresponding to the forming cavity, of the bottom, a buffer groove sunken downwards is formed in the position, facing the connecting position of the side wall of the forming cavity, of the bottom and the limiting portion, a blank located in the forming cavity deforms and extrudes the side wall, then the blank deforms in the buffer groove, extrusion force of the connecting position is buffered and relieved, and an exhaust hole communicated with the outside of the upper end forming die is formed in the buffer groove.
7. A mold assembly as recited in claim 6, wherein: the limiting part is of a cylindrical structure, an inner cavity of the limiting part forms the forming cavity, and the outer wall of the limiting part is in a conical shape with a small upper part and a large lower part, so that the deformation resistance of the limiting part in the horizontal direction is enhanced.
8. A mold assembly as recited in claim 7, wherein: the included angle between the bus of the outer wall of the limiting part and the vertical plane is 0-20 degrees.
9. A mould assembly according to claim 6 or 7 or 8, wherein: the vent holes are arranged to be inclined downwards so as to prevent foreign matters from entering and causing blockage.
10. A mold assembly as recited in claim 6, wherein: and an extrusion cavity which corresponds to the molding cavity and is reduced in a step shape from top to bottom is arranged in the lower end molding die, and the reduction position of at least one part of the extrusion cavity from top to bottom is an inclined surface structure which forms an included angle of 45 degrees with a horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921534120.4U CN210907442U (en) | 2019-09-16 | 2019-09-16 | Wheel limit supporting shaft thermoforming crack control mould reaches mould subassembly including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921534120.4U CN210907442U (en) | 2019-09-16 | 2019-09-16 | Wheel limit supporting shaft thermoforming crack control mould reaches mould subassembly including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210907442U true CN210907442U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921534120.4U Active CN210907442U (en) | 2019-09-16 | 2019-09-16 | Wheel limit supporting shaft thermoforming crack control mould reaches mould subassembly including it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210907442U (en) |
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2019
- 2019-09-16 CN CN201921534120.4U patent/CN210907442U/en active Active
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