CN209829916U - Lubrication-free expansion rounding die - Google Patents
Lubrication-free expansion rounding die Download PDFInfo
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- CN209829916U CN209829916U CN201822132774.6U CN201822132774U CN209829916U CN 209829916 U CN209829916 U CN 209829916U CN 201822132774 U CN201822132774 U CN 201822132774U CN 209829916 U CN209829916 U CN 209829916U
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Abstract
The utility model discloses a lubricated type of rising whole round mould of exempting from, including main part mechanism and actuating mechanism, wherein: the main body mechanism at least comprises a die body, an expansion sleeve and a pull rod, wherein the die body, the expansion sleeve and a pull cylinder are nested from outside to inside, the expansion sleeve has the performance of expanding under compression and recovering after the compression disappears, and the die body has the capacity of expanding towards the outer side when being driven by the expansion sleeve; one end of the pull rod is provided with a limiting structure, so that the expansion sleeve is forced to expand under the action of external force; the actuator drives the other section of the control rod. The scheme realizes a lubrication-free liquid mode for processing the low-power motor shell, obviously improves the processing efficiency and reduces the processing cost.
Description
Technical Field
The utility model relates to a embossing mold utensil, especially a lubricated type rounding off mould that rises exempts from.
Background
The motor shell with small power is formed by cutting and shaping aluminum profiles, the traditional method is that shell blanks cut off are finished by a press machine in a pressing mode, workpieces are placed on a male die with a cone, then the workpieces are pressed in through a sliding block, a large amount of lubricating liquid is used in the whole process, cleaning treatment is carried out by using a cleaning agent after pressing is finished, two additional processes such as drying and the like are carried out, the lubricating liquid is used each time, a large amount of cleaning waste liquid is generated, and environment-friendly treatment is carried out subsequently. The process is easy to cause environmental pollution, is not beneficial to energy conservation and environmental protection, and has the advantages of complex processing process, high equipment requirement, more and miscellaneous auxiliary equipment, high production cost of enterprises and low labor efficiency.
Disclosure of Invention
In order to solve the problem, the utility model discloses a lubricated whole round mould exempts from. The method for eliminating the lubricating liquid meets the requirements of the size and the precision of the processed part, and has the advantages of convenient processing, simplified production equipment and production procedures, improved production efficiency, energy conservation, environmental protection, reduced production cost and the like.
The utility model discloses a lubricated type of rising whole round mould of exempting from, including main part mechanism and actuating mechanism, wherein:
the main body mechanism at least comprises a die body, an expansion sleeve and a pull rod, wherein the die body, the expansion sleeve and a pull cylinder are nested from outside to inside, the expansion sleeve has the performance of expanding under compression and recovering after the compression disappears, and the die body has the capacity of expanding towards the outer side when being driven by the expansion sleeve;
one end of the pull rod is provided with a limiting structure, so that the expansion sleeve is forced to expand under the action of external force;
the other end of the control pull rod is driven by the actuating mechanism;
when in molding, the actuating mechanism drives the pull rod to expand the expansion sleeve, so that the die body nested outside the expansion sleeve is extruded outwards, and the motor shell blank is pressed by the die body to be expanded outwards;
after the molding is finished, the actuating mechanism reversely drives the pull rod to recover the expansion sleeve, and then the mold body is recovered to be demolded.
The utility model discloses an improvement of an expansion rounding die without lubrication, wherein the die body at least comprises a plurality of die body unit structures;
when the unit structure of the die body is not driven by the expansion sleeve, at least part of the unit structure is in an overlapped state;
when the die body unit structure of the die body is driven by the expansion sleeve to expand towards the outer side, at least part of the die body unit structure in the overlapped state is released from the overlapped state, so that the die body is integrally expanded towards the outer side, and the motor shell blank is extruded to be formed.
The utility model discloses an exempt from lubricated type of rising whole round mould's improvement, the mould body unit structure of the mould body has the sheet-like of circular arc structure for having the at least part of symmetry, and its sheet-like and at least part have the mould body unit structure of circular arc structure and formed the mould body through the form of the at least partial coincide of multi-disc. Further, the die bodies have a structure of at least 6 die body units and are uniformly distributed to form the die bodies on the outer side of the expansion sleeve. Furthermore, the main body mechanism further comprises an adjusting sleeve which is formed on the outer side of the extension direction of the pull rod, and the die body unit structures are uniformly connected to the adjusting sleeve, so that the die body units can be uniformly expanded to the outer side of the adjusting sleeve at least when the die body is driven by the expansion sleeve to be expanded to the outer side, and the motor shell blank is extruded to be formed.
The utility model discloses an exempt from lubricated type of rising whole round mould's improvement, the mould body cell structure of the mould body adopts evenly distributed's form to form jointly to be located the mould body in the cover outside that rises. Further, the die bodies have a structure of at least 6 die body units and are uniformly distributed to form the die bodies on the outer side of the expansion sleeve. Furthermore, the main body mechanism further comprises an adjusting sleeve which is formed on the outer side of the extension direction of the pull rod, and the die body unit structures are uniformly connected to the adjusting sleeve, so that the die body units can be uniformly expanded to the outer side of the adjusting sleeve at least when the die body is driven by the expansion sleeve to be expanded to the outer side, and the motor shell blank is extruded to be formed.
The utility model discloses an exempt from lubricated type of rising whole round mould's improvement, limit structure are the retaining ring of slice cavity circular structure, and the retaining ring assembles in the one end of pull rod to the external diameter is greater than the cover that rises rather than the internal diameter by the near-end.
The utility model discloses an improvement of aforementioned mould equipment's designability has realized the one-time no lubricated shaping of small-size low-power motor housing to at the processing equipment system, reduce the processing degree of difficulty and simplify the processing system, and all obtain apparent promotion in the aspect of energy-concerving and environment-protective reduction in production cost etc. the average machining efficiency in unit promotes 30-50%, and the manufacturing cost of product processing reduces 10-20%, and the acquisition cost of equipment then sees the rule and reduces more.
In order to obtain better rigidity and wear resistance of the die body, the die body is used as a main consumable, and further improvement is made: the unit structure of the die body comprises a framework and a coating layer formed on the outer side of the framework (the coating layer can be assembled on the framework in a detachable assembly mode, such as riveting or mortise-tenon joint structure or screw connection mode),
the framework is a composite ceramic-based material lined with stainless steel material;
the coating layer is made of carbon-containing material, and the coating layer is made of high-temperature wear resistant rigid material. The mold body of the scheme aims at the problems in multiple aspects such as easy abrasion, easy deformation and large maintenance difficulty of the mold body in the prior art, the composite structure of the composite ceramic is taken as the core in the mold body, so that on the premise of improving the production processing performance and the maintenance performance of the mold by a product, the post-treatment performance is also improved by the coating layer, so that the adhesion of extrusion metal is reduced (in the extrusion process, part of blank materials are separated from blanks and are adhered to the surface of the mold in the form of particles or metal wires to damage the processing capacity of the mold, the cleaning difficulty is increased, scratches are easy to form in subsequent processing), the inner side structure and the framework are subjected to heat insulation protection and are matched with the lubricating performance and the oxidation resistance performance of a carbon material when the coating layer of the carbon-containing material is extruded, the mold is prevented from being deformed or abraded in long-term use, and the, and corresponding coating layers can be directly replaced when maintenance is needed, so that the maintenance efficiency is higher and the cost is lower.
Preferably, the ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.15-0.18%, magnesium carbonate 2.0-3.5%, calcium carbonate 1.0-2.0%, sodium bicarbonate 1.20-1.40%, and the balance of alumina and inevitable impurities. The proper amount of clay can effectively play a role in auxiliary forming of blanks without adding other auxiliary materials in forming, has good dispersibility for magnesium carbonate, calcium carbonate, sodium bicarbonate and the like, and does not influence the performance of the materials due to excessive addition, such as the negative influence on high-temperature performance, mechanical performance and the like is controlled to be minimum. This scheme is through adopting a small amount of clay to play partial fluxing bonding effect of stereotyping at ceramic matrix material skeleton sintering, and here control clay quantity can just adjust the melting of in-process alumina to, proper amount magnesium carbonate, calcium carbonate play supplementary pore-forming simultaneously and with the cooperation reinforcing ceramic performance play a role, sodium bicarbonate is when adjusting raw materials pH environment, has mainly played the efficiency of pore-forming, and the porous ceramic material that light intensity is suitable is obtained through the raw materials cooperation.
Preferably, the raw material of the ceramic-based material also comprises at least one of carbon fiber or ceramic fiber accounting for 0.3-0.5wt% of the total mass of the raw material, and the carbon fiber or ceramic fiber is short fiber with the length of 0.1-0.3mm and the diameter of 10-20 microns. Through the uniformly distributed fiber structure, the point supporting effect is achieved, the wear resistance and the rigidity are obviously improved, and meanwhile, the problem that long fibers are easy to break and remain to cause extrusion scratches on the surface of a workpiece in long-term use is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the lubrication-free expansion rounding die.
Reference numerals: 1-nut, 2-washer, 3-retainer ring, 4-expansion sleeve, 5-die body, 6-pull rod, 7-pressing ring, 9-adjusting sleeve, 10-fixing screw, 11-spring washer, 12-screw, 14-die holder, 15-ejector rod 16-supporting ring, 17-oil cylinder, 18-stroke guide rod, 20-induction block
Detailed Description
The present invention will be further explained with reference to the following detailed description, which is to be understood as illustrative only and not as limiting the scope of the invention.
The present solution includes, but is not limited to, the following examples, and while only the innovative aspects are pointed out in the examples, the remaining portions of the respective solutions can be supplemented by any feasible prior art to form a complete embodiment.
Example 1
In this embodiment, lubricated full circle mould that rises exempts from, including main part mechanism and actuating mechanism, wherein: the main body mechanism at least comprises a die body, an expansion sleeve and a pull rod, wherein the die body, the expansion sleeve and a pull cylinder are nested from outside to inside, the expansion sleeve has the performance of expanding under compression and recovering after the compression disappears, and the die body has the capacity of expanding towards the outer side when being driven by the expansion sleeve; one end of the pull rod is provided with a limiting structure, so that the expansion sleeve is forced to expand under the action of external force; the other end of the control pull rod is driven by the actuating mechanism; when in molding, the actuating mechanism drives the pull rod to expand the expansion sleeve, so that the die body nested outside the expansion sleeve is extruded outwards, and the motor shell blank is pressed by the die body to be expanded outwards; after the molding is finished, the actuating mechanism reversely drives the pull rod to recover the expansion sleeve, and then the mold body is recovered to be demolded. And further, the processing of a single product is realized, and after simple cleaning, the re-processing can be realized by repeating the actions.
Example 2
The difference from the embodiment 1 is that the mould body comprises 6 mould body unit structures;
when the unit structure of the die body is not driven by the expansion sleeve, at least part of the unit structure is in an overlapped state;
when the die body unit structure of the die body is driven by the expansion sleeve to expand towards the outer side, at least part of the die body unit structure in the overlapped state is released from the overlapped state, so that the die body is integrally expanded towards the outer side, and the motor shell blank is extruded to be formed.
Example 3
The difference from the embodiment 2 is that the mold body unit structure of the mold body is a sheet shape having a symmetrical long shape with a circular arc structure at one end of the long shape, and the sheet-shaped mold body unit structure forms the mold body by at least partially overlapping a plurality of sheets.
Example 4
The difference from the embodiment 2 is that the mold body unit structure of the mold body is a sheet shape having a symmetrical long shape with circular arc structures at both ends of the long shape, and the sheet-shaped mold body unit structure forms the mold body by at least partially overlapping a plurality of sheets.
Example 5
In contrast to embodiment 3, the main body mechanism further includes an adjustment sleeve formed on the outer side in the extending direction of the tie bar, and the end of the unit structure of the die body having the arc structure is uniformly connected to the adjustment sleeve so as to be uniformly expanded to the outer side thereof at least when the die body is expanded to the outer side thereof by the driving of the expansion sleeve, and the motor housing blank is pressed to be formed.
Example 6
In contrast to embodiment 3, the main body mechanism further includes an adjustment sleeve formed on the outer side in the extending direction of the tie bar, and the end of the unit structure of the die body not having the arc structure is uniformly connected to the adjustment sleeve so as to be uniformly expanded to the outer side thereof at least when the die body is expanded to the outer side thereof by the driving of the expansion sleeve, and the motor housing blank is pressed to be formed.
Example 7
In contrast to embodiment 4, the main body mechanism further includes an adjustment sleeve formed outside the extension direction of the tie bar, and one end of the unit structure of the die body is uniformly connected to the adjustment sleeve so as to be uniformly expanded to the outside thereof at least when the die body is expanded to the outside thereof by the driving of the expansion sleeve, and the motor housing blank is extruded to be formed.
Different from the previous embodiment, the limiting structure is a check ring with a sheet-shaped hollow circular structure, the check ring is assembled at one end of the pull rod, and the outer diameter of the check ring is larger than the inner diameter of the expansion sleeve close to the expansion sleeve.
The utility model discloses an improvement of aforementioned mould equipment's structurality, the disposable unlubricated shaping of small-size low-power motor housing (the 130 motors of aluminium system shell are the example, and every batch processing is 1000, calculates the average value) has been realized to at the processing equipment system, reduce the processing degree of difficulty and simplify the processing system, and all obtain apparent promotion in the aspect of energy-concerving and environment-protective reduction in production cost etc. the average machining efficiency of unit promotes 30-50%, and the manufacturing cost of product processing reduces 10-20%, and the acquisition cost of equipment then sees the rule and reduces more.
The embodiment of the utility model provides an in, adopt including but not limited to following technical scheme after, the mould body unit structure includes the coating that forms in the skeleton outside of skeleton and spiro union, and the skeleton is the compound ceramic-based material that is lined with stainless steel material, and the ceramic-based material's as the skeleton raw materials mainly do, wt%: clay 0.15%, magnesium carbonate 3.5%, calcium carbonate 1.2%, sodium bicarbonate 1.40%, and the balance of alumina and inevitable impurities; the coating layer is a carbon fiber layer. Compared with the previous embodiment, the service life of the product is further prolonged by about 30%, and the labor and time consumption of production and maintenance are saved by more than 30%.
The ceramic-based material, namely the foamed ceramic material in the above embodiment is mainly prepared from the following raw materials in wt%: clay (the utility model discloses in be ceramic clay) 0.15-0.18%, magnesium carbonate 2.0-3.5%, calcium carbonate 1.0-2.0%, sodium bicarbonate 1.20-1.40%, the surplus is aluminium oxide and inevitable impurity.
The composition technical scheme of the ceramic-based material in the above embodiment may also include, but is not limited to, any of the following technical schemes:
1. the ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.15%, magnesium carbonate 3.5%, calcium carbonate 1.2%, sodium bicarbonate 1.40%, and the balance of alumina and inevitable impurities.
2. The ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.16%, magnesium carbonate 2.0%, calcium carbonate 1.4%, sodium bicarbonate 1.30%, and the balance of alumina and inevitable impurities.
3. The ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.17%, magnesium carbonate 3.0%, calcium carbonate 1.6%, sodium bicarbonate 1.20%, and the balance of alumina and inevitable impurities.
4. The ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.18%, magnesium carbonate 2.5%, calcium carbonate 1.0%, sodium bicarbonate 1.25%, and the balance of alumina and inevitable impurities.
5. The ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.155%, magnesium carbonate 2.7%, calcium carbonate 2.0%, sodium bicarbonate 1.36%, and the balance of alumina and inevitable impurities.
6. The ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.175%, magnesium carbonate 3.2%, calcium carbonate 1.5%, sodium bicarbonate 1.27%, and the balance of alumina and inevitable impurities.
7. The ceramic-based material mainly comprises the following raw materials in percentage by weight: clay 0.165%, magnesium carbonate 2.9%, calcium carbonate 1.7%, sodium bicarbonate 1.32%, and the balance of alumina and inevitable impurities.
In the technical scheme including but not limited to the above ceramic-based materials, the total amount of impurity elements should be not higher than 0.07%, and the single composition should be not higher than 0.03%.
In contrast to the above embodiment, the difference may be any of the following cases: a. the raw material of the ceramic-based material also comprises carbon fiber accounting for 0.3-0.5wt% of the total mass of the raw material, wherein the carbon fiber is short fiber with the length of 0.1-0.3mm and the diameter of 10-20 microns; b. the raw material of the ceramic-based material also comprises ceramic fiber accounting for 0.3-0.5wt% of the total mass of the raw material, wherein the ceramic fiber is short fiber with the length of 0.1-0.3mm and the diameter of 10-20 microns; c. the raw material of the ceramic-based material also comprises carbon fiber and ceramic fiber accounting for 0.3-0.5wt% of the total mass of the raw material, wherein the carbon fiber and the ceramic fiber are short fibers with the length of 0.1-0.3mm and the diameter of 10-20 microns;
in the above embodiment, the fibers are short fibers having a length of 0.1mm (which may include, but is not limited to, any of the following list: 0.2, 0.3, 0.14, 0.16, 0.17, 0.19, 0.22, 0.23, 0.25, 0.27, 0.28, 0.29, and any other value within the range of 0.1 to 0.3 mm), a diameter (maximum diameter) of 10 micrometers (which may include, but is not limited to, any of the following list: 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and any other value within the range of 10 to 20 micrometers); the carbon fiber and the ceramic fiber (both of which may satisfy the following definition, including the case where both are present individually or together) are in a total amount of 0.3wt% (the total amount may also be any of values including, but not limited to, 0.31wt%, 0.32wt%, 0.33wt%, 0.34wt%, 0.35wt%, 0.36wt%, 0.37wt%, 0.38wt%, 0.39wt%, 0.40wt%, 0.41wt%, 0.42wt%, 0.43wt%, 0.44wt%, 0.45wt%, 0.46wt%, 0.47wt%, 0.48wt%, 0.49wt%, 0.50wt%, and any other value within a range of 0.3 to 0.5 wt%).
As shown in figure 1, the basic structure of a lubrication-free expansion type rounding die (hereinafter referred to as a die) is composed of a part number 1 to a part number 16, and an actuating mechanism oil cylinder assembly of the die is mainly composed of a part number 17 to a part number 20.
The die is vertically installed, firstly, a die holder 14 is fixed at the central hole position of a workbench by a screw 12 and a spring washer 11, the fixing screw of an actuating oil cylinder part (17-20) is reliably fixed on the bottom plane of the workbench upwards, a support ring 16 is sleeved (each ejector rod 15 is screwed in advance), then a pull rod is screwed through the central hole of the workbench, an adjusting sleeve 9, an expansion sleeve 4, a die body 5, a check ring 3 and a washer 2 are sequentially sleeved, an upper pressing ring 7 is screwed by a nut 1 and is reliably connected by a fixing screw 10,
the execution oil cylinder is a double-output-shaft double-acting oil cylinder 17, the left end of an oil cylinder body is provided with a cylinder opening flange at the outer end of a high-pressure sealing ring, one end of a piston rod of a double-output shaft is provided with threads and is connected with a pull rod 6, so that the corresponding functions of mold expanding and demolding actions are realized, and the precision is accurately adjusted: firstly, the setting of the external dimension tolerance and the dimension is set by the height of the expansion sleeve 4, when the pull rod 6 moves to the lowest position, the external dimension of the expansion die 5 is the final dimension of the workpiece, and the height of the adjustment sleeve 9 is corrected to realize higher final dimension precision. Secondly, the cylindricity tolerance is that the mould body consists of 6 (or more) arc sheets in a center, when the arc parts of the mould body are not uniformly distributed, the cylindricity tolerance of the inner hole of the part is out of tolerance, so that the bottom of the adjusting sleeve 9 is provided with a groove and a falcon which are uniformly distributed on the circumference and correspond to the mould body, the mould body 5 is always in the groove, and the ideal form and position tolerance requirement is met
Explanation of the operation:
starting the ejection position of the oil cylinder to enable the mold to be in a loose state, adjusting the position of a proximity switch 19 (if an induction block 20 of the proximity switch plays a role in position limitation control during induction switching), sending a signal after adjustment, stopping the oil cylinder, installing a shell, pressing a start expansion button, driving a pull rod by the oil cylinder, enabling an expansion sleeve to move downwards, and enabling the mold body 5 to move outwards to perform expansion ring movement.
When the mold is tensioned when the position of the pre-adjusted adjusting sleeve 9 is touched, pressure is transmitted, the oil cylinder returns, the pull rod drives the ejector rods 15 (distributed in the circumference) to demold, the mold body 5 is tightened inwards, and the mold body is a cylinder formed by a plurality of mold body unit structures, so that the action can be realized. One action is completed.
The power of the die can be driven by an oil cylinder, can also be driven by the oil cylinder, can also be driven by a motor or even a stepping motor, and can also be matched with a manipulator to be used as a full-automatic assembly line.
The embodiment of the present invention is not exhaustive in the technical scope claimed in the present invention and the technical solutions of the embodiments are equally applicable to the new technical solutions formed by equivalent replacement of a single or multiple technical features; in the embodiments of the present invention, all the parameters in the same embodiment are only an example (i.e. a feasible solution) of the technical solution, and there is no strict matching and limiting relationship between the parameters, wherein the parameters can be replaced with each other without violating the axiom and the requirements of the present invention, except for the specific statement.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme formed by the arbitrary combination of the technical characteristics. The foregoing is a detailed description of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations are also considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a lubricated type of rising whole round mould of exempting from, includes main part mechanism and actuating mechanism, wherein:
the main body mechanism at least comprises a die body, an expansion sleeve and a pull rod, wherein the die body, the expansion sleeve and a pull cylinder are nested from outside to inside, the expansion sleeve has the performance of expanding under compression and recovering after the compression disappears, and the die body has the capacity of expanding towards the outer side when being driven by the expansion sleeve;
one end of the pull rod is provided with a limiting structure, so that the expansion sleeve is forced to expand under the action of external force;
the actuating mechanism drives the other end of the control pull rod;
when in molding, the actuating mechanism drives the pull rod to expand the expansion sleeve, so that the die body nested outside the expansion sleeve is extruded outwards, and the motor shell blank is pressed by the die body to be expanded outwards;
after the molding is finished, the actuating mechanism reversely drives the pull rod to recover the expansion sleeve, and then the mold body is recovered to be demolded.
2. The lubrication-free expansion rounding die as claimed in claim 1, wherein the die body at least comprises a plurality of die body unit structures;
when the unit structure of the die body is not driven by the expansion sleeve, at least part of the unit structure is in an overlapped state;
when the die body unit structure of the die body is driven by the expansion sleeve to expand towards the outer side, at least part of the die body unit structure in the overlapped state is released from the overlapped state, so that the die body is integrally expanded towards the outer side, and the motor shell blank is extruded to be formed.
3. The lubrication-free expanding rounding die as claimed in claim 2, wherein the die body unit structure of the die body is a sheet shape having a symmetrical at least partially circular arc structure, and the sheet shape and the at least partially circular arc structure of the die body unit structure form the die body by a plurality of sheets at least partially overlapped.
4. The lubrication-free expansion rounding die as claimed in claim 2 or 3, wherein the die body unit structures of the die bodies are uniformly distributed to form the die bodies on the outer side of the expansion sleeve.
5. The lubrication-free expansion rounding die of claim 4, wherein the die bodies have a die body unit structure of at least 6 pieces and are distributed uniformly to form the die bodies on the outer side of the expansion sleeve.
6. The lubrication-free expansion rounding die of claim 3, wherein the die bodies have a die body unit structure of at least 6 pieces and are distributed uniformly to form the die bodies on the outer side of the expansion sleeve.
7. The lubrication-free expansion rounding die as claimed in claim 5, wherein the main body mechanism further comprises an adjusting sleeve formed on the outer side of the extension direction of the pull rod, and the die body unit structures are uniformly connected to the adjusting sleeve so as to be uniformly expanded to the outer side thereof at least when the die body is driven by the expansion sleeve to expand to the outer side thereof, thereby extruding the motor housing blank to be formed.
8. The lubrication-free expansion rounding die as claimed in claim 3 or 6, wherein the main body mechanism further comprises an adjusting sleeve formed on the outer side of the extension direction of the pull rod, and the die body unit structures are uniformly connected to the adjusting sleeve so as to be uniformly expanded to the outer side thereof at least when the die body is driven by the expansion sleeve to expand to the outer side thereof, thereby extruding the motor housing blank to be formed.
9. The lubrication-free expansion rounding die as claimed in claim 1, wherein the limiting structure is a retaining ring of a sheet-shaped hollow circular structure, the retaining ring is assembled at one end of the pull rod, and the outer diameter of the retaining ring is larger than the inner diameter of the expansion sleeve close to the end of the expansion sleeve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822132774.6U CN209829916U (en) | 2018-12-19 | 2018-12-19 | Lubrication-free expansion rounding die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822132774.6U CN209829916U (en) | 2018-12-19 | 2018-12-19 | Lubrication-free expansion rounding die |
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| CN209829916U true CN209829916U (en) | 2019-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530491A (en) * | 2018-12-19 | 2019-03-29 | 浙江振兴阿祥集团有限公司 | A kind of non-lubricating rises type rounding die |
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2018
- 2018-12-19 CN CN201822132774.6U patent/CN209829916U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530491A (en) * | 2018-12-19 | 2019-03-29 | 浙江振兴阿祥集团有限公司 | A kind of non-lubricating rises type rounding die |
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