CN213728724U - High-precision low-cost equal-wall-thickness single-screw pump hollow rotor forming equipment - Google Patents
High-precision low-cost equal-wall-thickness single-screw pump hollow rotor forming equipment Download PDFInfo
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- CN213728724U CN213728724U CN202022383868.8U CN202022383868U CN213728724U CN 213728724 U CN213728724 U CN 213728724U CN 202022383868 U CN202022383868 U CN 202022383868U CN 213728724 U CN213728724 U CN 213728724U
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Abstract
The utility model discloses a wall thickness single screw pump hollow rotor former such as high accuracy low cost, including forming die, accress structure, seamless steel pipe and feeding mechanism, slide and last slide are installed to the accress structure upside, and go up the slide and be located the slide upside down, the one end that slide and last slide were close to mutually is fixed with bed die and last mould respectively down, one side of feeding mechanism is fixed with the rack that sets up along its horizontal length direction, and feeding mechanism upper end sliding connection has fixture, and fixture's base upper end is fixed with second servo motor, and second servo motor's output shaft end fixing has the gear, and the transmission of gear and rack toothing, one side rotation of fixture is connected with the clamping jaw that is used for centre gripping seamless steel pipe. The utility model discloses the raw and other materials sources are extensive low in price, and equipment requirement is simple, and the technology link is few, can greatly reduce single screw pump wait wall thickness hollow rotor's processing cost.
Description
Technical Field
The utility model relates to a single screw pump part production technical field especially relates to a wall thickness single screw pump hollow rotor former such as high accuracy low cost.
Background
In the single screw pump, the hollow rotor has the advantages of light weight, material saving, easy installation and the like compared with a solid rotor. The hollow rotor of the single-screw pump with the same specification is 50% -80% lighter than the solid rotor, and because the rotor eccentrically rotates in the cavity of the stator, the hollow rotor can reduce vibration obviously, reduce starting torque and prolong the service life of the single-screw pump.
Because the rotor of the single-screw pump needs to be in interference fit with the stator cavity, and the amount of interference fit needs to be in a proper range, the lead precision, the eccentricity and the section size precision of the hollow rotor are required to be higher. This has higher requirement just to the former technology of equal wall thickness hollow rotor, and the technological requirement height is then very big increase manufacturing cost, for this reason, the utility model provides a wall thickness single screw pump hollow rotor former such as high accuracy low cost solves above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a wall thickness hollow rotor former such as high accuracy low-cost, raw and other materials source is extensive low price, and equipment requirement is simple, and the technology link is few, can greatly reduce the processing cost of wall thickness hollow rotor such as single-screw pump.
(II) technical scheme
The utility model provides a high-precision low-cost equal-wall-thickness single-screw pump hollow rotor forming device, which comprises a forming die, a pressure mechanism, a seamless steel pipe and a feeding mechanism, wherein the forming die comprises an upper die and a lower die, the upper side of the pressure mechanism is provided with a lower slide seat and an upper slide seat, the upper slide seat is positioned on the upper side of the lower slide seat, the lower die and the upper die are respectively fixed at one end of the lower slide seat and one end of the upper slide seat which are close to each other, one side of the feeding mechanism is fixed with a rack arranged along the transverse length direction of the feeding mechanism, the upper end of the feeding mechanism is connected with a clamping mechanism in a sliding way, the upper end of a base of the clamping mechanism is fixed with a second servo motor, the end part of an output shaft of the second servo motor is fixed with a gear, the gear and the rack are meshed for transmission, one side of the clamping mechanism is rotatably connected with a clamping jaw used for clamping the seamless steel pipe, and the other end of the seamless steel pipe is positioned between the upper die and the lower die, a first servo motor is fixed at the upper end of the clamping mechanism, a synchronous belt wheel is connected to the end portion of an output shaft of the clamping mechanism, and the synchronous belt wheel is in synchronous transmission connection with the clamping jaw through a synchronous belt.
Preferably, a cavity curved surface is processed on one side of the upper die close to one side of the lower die.
Preferably, the inlet end of the cavity formed by the matched upper die and lower die forms a circle with the diameter of D1, the outlet end cavity formed by the matched upper die and lower die forms a circle with the diameter of D2, D1 is larger than D2, and D1 is connected to D2 through a special smooth curved surface of the cavity.
Preferably, the circle with diameter D1 is not concentric with the circle with diameter D2.
Preferably, a chamfer R1 with a specific size range is arranged at the intersection of the mold cavity and part of or all of the parting surfaces;
the upper die and the lower die are composed of one or more dies;
after the upper die and the lower die are assembled, a section of spiral cavity identical to the rotor of the single-screw pump is formed on one side of the outlet end, and a chamfer is arranged at the intersection of the cavity and part of or all of the parting surfaces.
Preferably, the first servo motor and the second servo motor are controlled by a numerical control system or a PLC and can be linked, and the numerical control system or the PLC also controls the opening and closing of the lower sliding seat and the upper sliding seat of the pressure mechanism.
Compared with the prior art, the beneficial effects of the utility model are that:
the seamless steel pipe is used as a raw material, so that the purchase cost of the raw material can be reduced, the process requirement in manufacturing can be simplified through the upper die and the lower die with special cavities, and the processing cost of the hollow rotors with the wall thicknesses such as the single-screw pump and the like is greatly reduced.
Drawings
FIG. 1 is a front view of a high-precision low-cost equal-wall-thickness single-screw pump hollow rotor molding device provided by the utility model;
FIG. 2 is a side view of an upper mold and a lower mold of a hollow rotor forming device of a single-screw pump with high precision, low cost and equal wall thickness;
fig. 3 is another side view of the upper mold and the lower mold in the high-precision low-cost equal-wall-thickness single-screw pump hollow rotor molding equipment provided by the utility model.
In the figure: the device comprises a pressure mechanism 1, a lower sliding seat 2, an upper sliding seat 3, an upper die 4, a lower die 5, a seamless steel pipe 6, a clamping jaw 7, a clamping mechanism 8, a first servo motor 9, a synchronous belt 10, a second servo motor 11, a gear 12, a rack 13 and a feeding mechanism 14.
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.
As shown in fig. 1-3, the present invention provides a high-precision low-cost equal-wall-thickness single-screw pump hollow rotor molding device, which comprises a molding die, a pressure mechanism 1, a seamless steel tube 6 and a feeding mechanism 14, wherein the molding die comprises an upper die 4 and a lower die 5, a lower slide 2 and an upper slide 3 are mounted on the upper side of the pressure mechanism 1, the upper slide 3 is located on the upper side of the lower slide 2, the lower die 5 and the upper die 4 are respectively fixed on one end of the lower slide 2 close to the upper slide 3, a rack 13 arranged along the transverse length direction of the feeding mechanism 14 is fixed on one side of the feeding mechanism 14, a clamping mechanism 8 is slidably connected to the upper end of the feeding mechanism 14, a second servo motor 11 is fixed to the upper end of the base of the clamping mechanism 8, a gear 12 is fixed to the end of an output shaft of the second servo motor 11, the gear 12 is engaged with the rack 13 for transmission, a clamping jaw 7 for clamping the seamless steel tube 6 is rotatably connected to one side of the clamping mechanism 8, and the other end of the seamless steel tube 6 is positioned between the upper die 4 and the lower die 5, the upper end of the clamping mechanism 8 is fixed with a first servo motor 9, the end part of an output shaft of the clamping mechanism 8 is connected with a synchronous belt pulley, and the synchronous belt pulley is in synchronous transmission connection with the clamping jaw 7 through a synchronous belt 10.
In an alternative embodiment, the sides of the upper mold 4 and the lower mold 5 adjacent to each other are both processed with cavity curved surfaces.
In an alternative embodiment, the inlet end of the cavity formed by the upper mold 4 and the lower mold 5 after they are closed forms a circle with a diameter D1, the outlet end of the cavity formed by the upper mold 4 and the lower mold 5 after they are closed forms a circle with a diameter D2, D1 is larger than D2, and D1 is connected to D2 by a special smooth curved surface of the cavity.
In an alternative embodiment, the circle with diameter D1 is not concentric with the circle with diameter D2.
In an alternative embodiment, the intersection of the mold cavity and part or all of the parting plane has a chamfer R1 with a specific size range;
the upper die 4 and the lower die 5 are composed of one or more dies;
after the upper die 4 and the lower die 5 are assembled, a section of spiral cavity which is the same as the rotor of the single-screw pump is formed on one side of the outlet end, and a chamfer is arranged at the intersection of the cavity and part of or all parting surfaces.
In an alternative embodiment, the first servo motor 9 and the second servo motor 11 are controlled by a numerical control system or a PLC and can be linked, and the numerical control system or the PLC also controls the opening and closing of the lower slide 2 and the upper slide 3 of the pressure mechanism 1.
The working principle is as follows: because the rotor of the single-screw pump needs to be in interference fit with the stator cavity, and the amount of interference fit needs to be in a proper range, the lead precision, the eccentricity and the section size precision of the hollow rotor are required to be higher. In the embodiment, one end of a seamless steel pipe 6 is clamped on a clamping mechanism 8, the other end of the seamless steel pipe is placed in a forming die cavity, a pressure mechanism 1 drives an upper die 4 to be separated from a lower die 5, a numerical control system controls a second servo motor 11 and a first servo motor 9 to drive a feeding mechanism 14 to advance and a clamping mechanism 8 to rotate, the seamless steel pipe 6 advances for a small distance and rotates for an angle, the advancing distance and the rotating angle of the seamless steel pipe 6 enable the part of the seamless steel pipe 6 in the die to move along the die cavities of the upper die 4 and the lower die 5 as far as possible, after the movement of the seamless steel pipe 6 stops, the numerical control system sends an instruction to enable the movement of the clamping mechanism 8 on the feeding mechanism 14 to be free when the second servo motor 11 is disconnected, the numerical control system controls the lower sliding seat 2 and the upper sliding seat 3 on the upper side of the pressure mechanism 1 to move oppositely to drive the upper die 4 and the lower die 5 to be matched, the straight seamless steel pipe 6 is gradually pressed into a spiral shape in the die matching process by the die, the diameter D1 of the seamless steel pipe 6 is gradually compressed to the diameter D2 of a spiral pipe in the pressing process, so that the metal of the seamless steel pipe generates radial plastic deformation, the plastic deformation process can enable the metal to generate metal memory and overcome elastic deformation, the section diameter and the lead of the hollow rotor can reach a higher precision, a certain axial force can be generated in the plastic deformation process of the seamless steel pipe 6, the seamless steel pipe 6 outside the die generates slight axial movement, at the moment, the movement of the clamping mechanism 8 in the axial direction of the seamless steel pipe 6 is not restrained, the clamping mechanism 8 slides on the feeding mechanism 14 by the axial force, and adverse effects brought by the movement are counteracted, after the lower sliding seat 2 and the upper sliding seat 3 move relatively to drive the upper die 4 and the lower die 5 to be matched and reach a certain pressure, the numerical control system sends out an instruction to control the lower sliding seat 2 and the upper sliding seat 3 to move reversely and drive the upper die 4 and the lower die 5 to be separated, after the upper die 4 and the lower die 5 are separated by one end, the numerical control system sends out an instruction to repeatedly advance the seamless steel pipe 6 for a small distance and rotate for an angle and follow-up action, and the seamless steel pipe 6 is gradually compressed into a spiral single-screw pump hollow rotor through the repeated action.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the present invention, the technical solution and the utility model thereof should be covered within the protection scope of the present invention without any creative work.
Claims (6)
1. A high-precision low-cost equal-wall-thickness single-screw pump hollow rotor forming device is characterized by comprising a forming die, a pressure mechanism (1), a seamless steel pipe (6) and a feeding mechanism (14), wherein the forming die comprises an upper die (4) and a lower die (5), a lower sliding seat (2) and an upper sliding seat (3) are installed on the upper side of the pressure mechanism (1), the upper sliding seat (3) is located on the upper side of the lower sliding seat (2), the lower die (5) and the upper die (4) are respectively fixed at one end, close to each other, of the lower sliding seat (2) and the upper sliding seat (3), a rack (13) arranged along the transverse length direction of the feeding mechanism (14) is fixed on one side of the feeding mechanism (14), a clamping mechanism (8) is connected to the upper end of the feeding mechanism (14) in a sliding manner, a second servo motor (11) is fixed at the upper end of a base of the clamping mechanism (8), and a gear (12) is fixed at the end of an output shaft of the second servo motor (11), gear (12) and rack (13) meshing transmission, one side of fixture (8) is rotated and is connected with clamping jaw (7) that are used for centre gripping seamless steel pipe (6), and the other end of seamless steel pipe (6) is located between mould (4) and bed die (5), the upper end of fixture (8) is fixed with first servo motor (9), and the output shaft end connection of fixture (8) has synchronous pulley, and synchronous pulley passes through hold-in range (10) and is connected with clamping jaw (7) synchronous transmission.
2. A high-precision low-cost single-screw pump hollow rotor forming device with equal wall thickness according to claim 1, characterized in that the sides of the upper die (4) and the lower die (5) close to each other are both provided with cavity curved surfaces.
3. A high precision low cost single screw pump hollow rotor forming equipment according to claim 2, characterized in that the inlet end of the cavity after the upper die (4) and the lower die (5) are closed forms a circle with diameter D1, the outlet end of the cavity after the upper die (4) and the lower die (5) are closed forms a circle with diameter D2, D1 is larger than D2, and D1 is connected to D2 through a special smooth curved surface of the cavity.
4. A high accuracy low cost constant wall thickness single screw pump hollow rotor molding apparatus as claimed in claim 3 wherein said circle of diameter D1 is not concentric with the circle of diameter D2.
5. A high-precision low-cost single-screw pump hollow rotor forming device with the same wall thickness as the hollow rotor of claim 4, wherein a chamfer R1 with a specific size range is arranged at the intersection of the die cavity and part of or all of the parting surfaces;
the upper die (4) and the lower die (5) are composed of one or more dies;
and after the upper die (4) and the lower die (5) are closed, a section of spiral cavity identical to the rotor of the single-screw pump is formed on one side of the outlet end, and a chamfer is arranged at the intersection of the cavity and part of or all parting surfaces.
6. The high-precision low-cost single-screw pump hollow rotor forming equipment with the same wall thickness as the claim 1 is characterized in that the first servo motor (9) and the second servo motor (11) are controlled by a numerical control system or a PLC (programmable logic controller) and can be linked, and the numerical control system or the PLC also controls the opening and closing of the lower sliding seat (2) and the upper sliding seat (3) of the pressure mechanism (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022383868.8U CN213728724U (en) | 2020-10-23 | 2020-10-23 | High-precision low-cost equal-wall-thickness single-screw pump hollow rotor forming equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022383868.8U CN213728724U (en) | 2020-10-23 | 2020-10-23 | High-precision low-cost equal-wall-thickness single-screw pump hollow rotor forming equipment |
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| Publication Number | Publication Date |
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| CN213728724U true CN213728724U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022383868.8U Active CN213728724U (en) | 2020-10-23 | 2020-10-23 | High-precision low-cost equal-wall-thickness single-screw pump hollow rotor forming equipment |
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| CN (1) | CN213728724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351911A (en) * | 2023-06-02 | 2023-06-30 | 广东思豪流体技术有限公司 | Straightening tool for aluminum alloy pipeline and operation method thereof |
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2020
- 2020-10-23 CN CN202022383868.8U patent/CN213728724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351911A (en) * | 2023-06-02 | 2023-06-30 | 广东思豪流体技术有限公司 | Straightening tool for aluminum alloy pipeline and operation method thereof |
| CN116351911B (en) * | 2023-06-02 | 2023-08-08 | 广东思豪流体技术有限公司 | Straightening tool for aluminum alloy pipeline and operation method thereof |
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