CN221312500U - Shaft extrusion forming die - Google Patents
Shaft extrusion forming die Download PDFInfo
- Publication number
- CN221312500U CN221312500U CN202322953030.1U CN202322953030U CN221312500U CN 221312500 U CN221312500 U CN 221312500U CN 202322953030 U CN202322953030 U CN 202322953030U CN 221312500 U CN221312500 U CN 221312500U
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- lower die
- die body
- fixedly connected
- sliding
- shaping
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- 238000001125 extrusion Methods 0.000 title claims abstract description 24
- 238000007493 shaping process Methods 0.000 claims abstract description 55
- 238000003825 pressing Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 6
- 238000004663 powder metallurgy Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The utility model provides a shaft extrusion forming die which comprises a die assembly and a shaping mechanism, wherein the die assembly comprises a lower die holder, an upper die holder, a lower die body and an upper die body; the upper die holder is arranged above the lower die holder, the lower die body and the upper die body are arranged between the lower die holder and the upper die holder, and the shaping mechanism is arranged in the middle of the inner side wall of the lower die body; according to the utility model, the lower die body is attached to the lower die base so as to insert the seal seat into the bottom of the lower die body, then the upper die body is pressed down to drive the two sliding blocks to move by the driving mechanism, the moving sliding blocks drive the two convex ring shaping modules and the two lower shaft shaping modules to attach, so that a shaping space is formed in the lower die body, and then the upper die body which is continuously pressed down is used for completing extrusion shaping of metal powder in the shaping space to form a spline shaft blank, so that the spline shaft can be processed by utilizing an extrusion molding mode, the processing precision is improved, and the situation that spline teeth deform in the processing process is avoided.
Description
Technical Field
The utility model relates to a die, in particular to a shaft extrusion forming die, and belongs to the technical field of shaft processing.
Background
The spline shaft is one kind of mechanical transmission shaft, and has the same function as that of flat key, semi-circular key and wedge key, and has longitudinal key slot in the outer surface and corresponding key slot in the rotating part to rotate synchronously with the shaft and to slide longitudinally on the shaft while rotating, such as gear shifting gear of gear box;
Powder metallurgy is a process technology for preparing metal powder or using the metal powder as a raw material, and manufacturing metal materials, composite materials and various products through forming and sintering; the powder metallurgy method is similar to the ceramic production, and belongs to the powder sintering technology, so that a series of novel powder metallurgy technology can be used for preparing ceramic materials; because of the advantages of the powder metallurgy technology, the novel material has become a key for solving the problem of the novel material, and plays a role in the development of the novel material;
Extrusion molding die is one of the important equipment in powder metallurgy process, mainly used for accomplishing the extrusion design with metallurgical powder in the mould to follow-up sintering treatment.
When the traditional spline shaft is processed and produced, the spline shaft is produced in a machining mode, the machining precision is poor, spline teeth are easy to deform in the machining process, and the working efficiency is low, so that the shaft extrusion forming die is provided.
Disclosure of utility model
In view of the foregoing, the present utility model provides a shaft extrusion molding die to solve or alleviate the technical problems existing in the prior art, at least providing a beneficial choice.
The technical scheme of the embodiment of the utility model is realized as follows: the shaft extrusion forming die comprises a die assembly and a shaping mechanism, wherein the die assembly comprises a lower die holder, an upper die holder, a lower die body and an upper die body;
The upper die holder is arranged above the lower die holder, the lower die body and the upper die body are arranged between the lower die holder and the upper die holder, the shaping mechanism is arranged in the middle of the inner side wall of the lower die body, the top of the inner side wall of the lower die body is provided with a driving mechanism, and a blanking mechanism is symmetrically arranged between the lower die body and the lower die holder;
the driving mechanism is used for driving the shaping mechanism to move by utilizing the pressure of the upper die body;
the blanking mechanism is used for assisting the separation of the lower die body and the lower die seat;
the shaping mechanism comprises two sliding blocks, two convex ring shaping modules, two lower shaft shaping modules and a sealing seat;
The two sliding blocks are symmetrically and slidably connected to the middle part of the inner side wall of the lower die body, the two lower shaft shaping modules are respectively and fixedly connected to two adjacent sides of the sliding blocks, and the two convex ring shaping modules are respectively and fixedly connected to the tops of the two lower shaft shaping modules.
Further preferably, the shaping mechanism further comprises two first springs;
one ends of the two first springs are respectively and fixedly connected to one sides of the two sliding blocks, and the other ends of the two first springs are fixedly connected to the inner side wall of the lower die body.
Further preferably, the driving mechanism comprises two sliding rods, two sliding grooves and two inclined parts;
The sliding bars are symmetrically and slidably connected to the top of the inner side wall of the lower die holder, the sliding grooves are respectively formed in the inner side walls of the sliding blocks, the inclined portions are respectively formed in the bottoms of the sliding bars, and the inclined portions are slidably connected with the inner side walls of the sliding grooves.
Further preferably, the blanking mechanism comprises four positioning rods, four sliding sheets and four second springs;
The bottom of the four locating rods is fixedly connected to the upper surface of the lower die holder, the four sliding sheets are respectively and fixedly connected to the tops of the four locating rods, and the outer side walls of the sliding sheets are in sliding connection with the inner side walls of the lower die body.
Further preferably, one ends of the four second springs are fixedly connected to the upper surfaces of the four sliding sheets respectively, and the other ends of the four second springs are fixedly connected to the top of the inner side wall of the lower die body.
Further preferably, the inner side wall of the upper die holder is symmetrically provided with four first hydraulic cylinders, and piston rods of the four first hydraulic cylinders are fixedly connected to the upper surface of the lower die body.
Further preferably, a second hydraulic cylinder is installed in the middle of the upper surface of the upper die base, and a piston rod of the second hydraulic cylinder is fixedly connected to the middle of the upper surface of the upper die body.
Further preferably, the top parts of the outer side walls of the two sliding rods are fixedly connected with pressing sheets, the outer side walls of the two sliding rods are sleeved with third springs, one ends of the third springs are fixedly connected to the bottoms of the pressing sheets, and the other ends of the third springs are fixedly connected to the inner side walls of the lower die holders.
By adopting the technical scheme, the embodiment of the utility model has the following advantages:
1. According to the utility model, the lower die body is attached to the lower die base so as to insert the seal seat into the bottom of the lower die body, then the upper die body is pressed down to drive the two sliding blocks to move by the driving mechanism, the moving sliding blocks drive the two convex ring shaping modules and the two lower shaft shaping modules to attach, so that a shaping space is formed in the lower die body, and then the upper die body which is continuously pressed down is used for completing extrusion shaping of metal powder in the shaping space to form a spline shaft blank, so that the spline shaft can be processed by utilizing an extrusion molding mode, the processing precision is improved, and the situation that spline teeth deform in the processing process is avoided.
2. According to the utility model, the limit of the spline shaft blank in the lower die body is relieved by utilizing the reset shaping mechanism, and then the seal seat slides out from the inside of the lower die body by utilizing the reset lower die body, so that the bottom of the lower die body is opened for blanking, and the production efficiency is improved.
The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of the present utility model;
FIG. 2 is a schematic cross-sectional view of a lower mold body according to the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model;
FIG. 4 is a schematic view of a slider according to the present utility model.
Reference numerals: 1. a mold assembly; 2. a shaping mechanism; 3. a driving mechanism; 4. a blanking mechanism; 101. a lower die holder; 102. an upper die holder; 103. a lower die body; 104. an upper die body; 201. a slide block; 202. a convex ring shaping module; 203. a lower shaft shaping module; 204. a first spring; 205. sealing the seat; 301. a slide bar; 302. a chute; 303. an inclined portion; 401. a positioning rod; 402. a sliding sheet; 403. a second spring; 51. a first hydraulic cylinder; 52. a second hydraulic cylinder; 53. tabletting; 54. and a third spring.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
It should be noted that the terms "first," "second," "symmetric," "array," and the like are used merely for distinguishing between description and location descriptions, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of features indicated. Thus, a feature defining "first," "symmetry," or the like, may explicitly or implicitly include one or more such feature; also, where certain features are not limited in number by words such as "two," "three," etc., it should be noted that the feature likewise pertains to the explicit or implicit inclusion of one or more feature quantities.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, an embodiment of the present utility model provides a shaft extrusion molding die, which comprises a die assembly 1 and a shaping mechanism 2, wherein the die assembly 1 comprises a lower die holder 101, an upper die holder 102, a lower die body 103 and an upper die body 104;
Wherein, the upper die holder 102 is arranged above the lower die holder 101, the lower die body 103 and the upper die body 104 are arranged between the lower die holder 101 and the upper die holder 102, the shaping mechanism 2 is arranged in the middle of the inner side wall of the lower die body 103, the top of the inner side wall of the lower die body 103 is provided with the driving mechanism 3, and the blanking mechanism 4 is symmetrically arranged between the lower die body 103 and the lower die holder 101;
Wherein, the driving mechanism 3 is used for driving the shaping mechanism 2 to move by utilizing the pressure of the upper die body 104;
Wherein, the blanking mechanism 4 is used for assisting the separation of the lower die body 103 and the lower die holder 101;
The shaping mechanism 2 comprises two sliding blocks 201, two convex ring shaping modules 202, two lower shaft shaping modules 203 and a seal seat 205;
Wherein, two sliders 201 are symmetrically and slidably connected to the middle part of the inner sidewall of the lower mold 103, two lower shaft shaping modules 203 are respectively and fixedly connected to one sides of the two sliders 201 adjacent to each other, and two convex ring shaping modules 202 are respectively and fixedly connected to the tops of the two lower shaft shaping modules 203.
In one embodiment, the setting mechanism 2 further comprises two first springs 204;
One ends of the two first springs 204 are fixedly connected to one sides of the two sliding blocks 201, and the other ends of the two first springs 204 are fixedly connected to the inner side wall of the lower die body 103.
The first spring 204 is pulled by the moving slider 201, so that the slider 201 is reset by the pulled first spring 204.
In one embodiment, the drive mechanism 3 comprises two slide bars 301, two slide grooves 302 and two inclined portions 303;
Wherein, two slide bars 301 are symmetrically and slidingly connected to the top of the inner sidewall of the lower die holder 101, two sliding grooves 302 are respectively arranged on the inner sidewalls of the two sliding blocks 201, two inclined portions 303 are respectively arranged at the bottoms of the two slide bars 301, and the inclined portions 303 are slidingly connected with the inner sidewalls of the sliding grooves 302.
The slide bar 301 presses the slide groove 302 by the inclined part 303 to drive the slide block 201 to move.
In one embodiment, the blanking mechanism 4 includes four positioning rods 401, four sliding sheets 402, and four second springs 403;
Wherein, the bottoms of the four positioning rods 401 are all fixedly connected to the upper surface of the lower die holder 101, the four sliding sheets 402 are respectively and fixedly connected to the tops of the four positioning rods 401, the outer side walls of the sliding sheets 402 are in sliding connection with the inner side walls of the lower die body 103, one ends of the four second springs 403 are respectively and fixedly connected to the upper surface of the four sliding sheets 402, and the other ends of the four second springs 403 are fixedly connected to the tops of the inner side walls of the lower die body 103.
The second spring 403 is driven to compress by the lower die body 103 being pressed down, and the lower die base 101 and the lower die body 103 are guided by the positioning rod 401 and the sliding sheet 402.
In one embodiment, four first hydraulic cylinders 51 are symmetrically installed on the inner side wall of the upper die holder 102, piston rods of the four first hydraulic cylinders 51 are fixedly connected to the upper surface of the lower die body 103, a second hydraulic cylinder 52 is installed in the middle of the upper surface of the upper die holder 102, and the piston rods of the second hydraulic cylinders 52 are fixedly connected to the middle of the upper surface of the upper die body 104.
The piston rod of the second hydraulic cylinder 52 drives the upper die body 104 to perform a downward pressing motion, and the piston rod of the first hydraulic cylinder 51 drives the lower die body 103 to perform a downward pressing motion.
In one embodiment, the top of the outer side wall of each of the two slide rods 301 is fixedly connected with a pressing sheet 53, the outer side walls of each of the two slide rods 301 are sleeved with a third spring 54, one end of the third spring 54 is fixedly connected to the bottom of the pressing sheet 53, and the other end of the third spring 54 is fixedly connected to the inner side wall of the lower die holder 101.
The slide rod 301 drives the pressing piece 53 to move, and the moving pressing piece 53 drives the third spring 54 to compress.
The utility model works when in work: the lower die holder 101 and the upper die holder 102 are installed and fixed at a specified position, then the piston rod of the first hydraulic cylinder 51 is utilized to drive the lower die body 103 to press down, and then the second spring 403 is driven to compress through the pressed lower die body 103, so that the seal seat 205 is inserted into the bottom of the lower die body 103 to seal the lower die body 103.
The upper die body 104 is driven to be pressed down once by utilizing the piston rod of the second hydraulic cylinder 52, the moving upper die body 104 drives the slide rod 301 to move, the moving slide rod 301 drives the pressing sheet 53 to move, the inclined part 303 is utilized to extrude the slide groove 302 to drive the slide block 201 to move, the moving pressing sheet 53 drives the third spring 54 to compress, the moving slide block 201 drives the convex ring shaping module 202, the lower shaft shaping module 203 and the first spring 204 to move, the moving first spring 204 stretches, and the moving convex ring shaping module 202 and the lower shaft shaping module 203 are attached to the convex ring shaping module 202 and the lower shaft shaping module 203 on the other side, so that a shaping space is formed in the lower die body 103.
Metal powder is added into the shaping space in the lower die body 103, and is tapped by matching with vibration equipment.
The piston rod of the second hydraulic cylinder 52 drives the upper die body 104 to be pressed down for the second time, so that the bottom of the upper die body 104 is inserted into the lower die body 103, metal powder in the shaping space is extruded and molded, and a spline shaft blank is formed, so that the spline shaft can be processed in an extrusion molding mode, the processing precision is improved, and the situation that spline teeth deform in the processing process is avoided.
After extrusion molding is completed, the upper die body 104 is driven to reset by a piston rod of the second hydraulic cylinder 52, then the compressed third spring 54 is used for driving the pressing sheet 53 and the sliding rod 301 to reset, so that the limit on the sliding block 201 is eliminated, then the sliding block 201, the convex ring shaping module 202 and the lower shaft shaping module 203 are driven to reset by the stretched first spring 204, so that the limit on the inner spline shaft blank of the lower die body 103 is eliminated, then the lower die body 103 is driven to reset by the piston rod of the first hydraulic cylinder 51, the stability of the lower die body 103 in the resetting movement process is ensured by the compressed second spring 403, so that the sealing seat 205 slides out of the lower die body 103, and the bottom of the lower die body 103 is opened for blanking.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various modifications and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a shaft extrusion forming mould, includes mould subassembly (1) and forming mechanism (2), its characterized in that: the die assembly (1) comprises a lower die holder (101), an upper die holder (102), a lower die body (103) and an upper die body (104);
The upper die holder (102) is arranged above the lower die holder (101), the lower die body (103) and the upper die body (104) are arranged between the lower die holder (101) and the upper die holder (102), the shaping mechanism (2) is arranged in the middle of the inner side wall of the lower die body (103), the driving mechanism (3) is arranged at the top of the inner side wall of the lower die body (103), and the blanking mechanism (4) is symmetrically arranged between the lower die body (103) and the lower die holder (101);
Wherein the driving mechanism (3) is used for driving the shaping mechanism (2) to move by utilizing the pressure of the upper die body (104);
The blanking mechanism (4) is used for assisting the separation of the lower die body (103) and the lower die holder (101);
The shaping mechanism (2) comprises two sliding blocks (201), two convex ring shaping modules (202), two lower shaft shaping modules (203) and a sealing seat (205);
The two sliding blocks (201) are symmetrically and slidably connected to the middle part of the inner side wall of the lower die body (103), the two lower shaft shaping modules (203) are respectively and fixedly connected to one adjacent sides of the two sliding blocks (201), and the two convex ring shaping modules (202) are respectively and fixedly connected to the tops of the two lower shaft shaping modules (203).
2. The shaft extrusion die of claim 1 wherein: the shaping mechanism (2) further comprises two first springs (204);
One ends of the two first springs (204) are fixedly connected to one sides of the two sliding blocks (201) respectively, and the other ends of the two first springs (204) are fixedly connected to the inner side wall of the lower die body (103).
3. The shaft extrusion die of claim 2, wherein: the driving mechanism (3) comprises two sliding rods (301), two sliding grooves (302) and two inclined parts (303);
The two sliding rods (301) are symmetrically and slidably connected to the top of the inner side wall of the lower die holder (101), the two sliding grooves (302) are respectively formed in the inner side walls of the two sliding blocks (201), the two inclined portions (303) are respectively formed in the bottoms of the two sliding rods (301), and the inclined portions (303) are slidably connected with the inner side walls of the sliding grooves (302).
4. The shaft extrusion die of claim 1 wherein: the blanking mechanism (4) comprises four positioning rods (401), four sliding sheets (402) and four second springs (403);
the bottom of the four locating rods (401) is fixedly connected to the upper surface of the lower die holder (101), the four sliding sheets (402) are respectively and fixedly connected to the tops of the four locating rods (401), and the outer side walls of the sliding sheets (402) are in sliding connection with the inner side walls of the lower die body (103).
5. The shaft extrusion die of claim 4 wherein: one end of each of the four second springs (403) is fixedly connected to the upper surface of each of the four sliding sheets (402), and the other end of each of the four second springs (403) is fixedly connected to the top of the inner side wall of the lower die body (103).
6. The shaft extrusion die of claim 1 wherein: four first hydraulic cylinders (51) are symmetrically arranged on the inner side wall of the upper die holder (102), and piston rods of the four first hydraulic cylinders (51) are fixedly connected to the upper surface of the lower die body (103).
7. The shaft extrusion die of claim 1 wherein: the middle part of the upper surface of the upper die holder (102) is provided with a second hydraulic cylinder (52), and a piston rod of the second hydraulic cylinder (52) is fixedly connected to the middle part of the upper surface of the upper die body (104).
8. A shaft extrusion die as in claim 3, wherein: the top of the outer side wall of each sliding rod (301) is fixedly connected with a pressing sheet (53), the outer side walls of each sliding rod (301) are sleeved with a third spring (54), one end of each third spring (54) is fixedly connected to the bottom of each pressing sheet (53), and the other end of each third spring (54) is fixedly connected to the inner side wall of each lower die holder (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322953030.1U CN221312500U (en) | 2023-11-01 | 2023-11-01 | Shaft extrusion forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322953030.1U CN221312500U (en) | 2023-11-01 | 2023-11-01 | Shaft extrusion forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221312500U true CN221312500U (en) | 2024-07-12 |
Family
ID=91787774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322953030.1U Active CN221312500U (en) | 2023-11-01 | 2023-11-01 | Shaft extrusion forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221312500U (en) |
-
2023
- 2023-11-01 CN CN202322953030.1U patent/CN221312500U/en active Active
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