CN111230527B - Auxiliary supporting device, system and method for thin-wall cylindrical part machining - Google Patents
Auxiliary supporting device, system and method for thin-wall cylindrical part machining Download PDFInfo
- Publication number
- CN111230527B CN111230527B CN202010124729.5A CN202010124729A CN111230527B CN 111230527 B CN111230527 B CN 111230527B CN 202010124729 A CN202010124729 A CN 202010124729A CN 111230527 B CN111230527 B CN 111230527B
- Authority
- CN
- China
- Prior art keywords
- air bag
- thin
- air
- air pressure
- cylindrical part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
The invention discloses an auxiliary supporting device, a system and a method for processing a thin-wall cylindrical part, which reduce the processing deformation of the thin-wall cylindrical part, reduce the vibration in processing, reduce the processing error and improve the processing precision; the problem that a common single-layer air bag cannot be suitable for supporting a thin-wall cylindrical part with an uneven surface is solved. The structure is simple, the assembly and disassembly are convenient, and the thin-wall cylindrical part can be tightly attached to the supporting surface of the thin-wall cylindrical part; the technical scheme is as follows: the air bag comprises an inner air bag and an outer air bag which are sleeved together, wherein a plurality of air inlet valves and exhaust valves are arranged between the inner air bag and the outer air bag; under the control of the air inlet valve, the inner layer air bag and the outer layer air bag are sequentially expanded to realize the support of the thin-wall cylindrical piece to be processed.
Description
Technical Field
The invention relates to the field of machining, in particular to an auxiliary supporting device, system and method for machining a thin-wall cylindrical part.
Background
The problems of processing deformation, vibration and the like are easily generated in the processing process of the thin-wall cylindrical part. Therefore, in order to improve the machining accuracy of the thin-walled cylindrical member, it is important to support the thin-walled cylindrical member in an auxiliary manner. The inventor finds that the prior art already supports the thin-wall cylindrical member by the air bag, but the supporting effect of the thin-wall cylindrical member cannot meet the requirement.
For example: the prior art discloses an air bag clamp, which supports the outer surface of a thin-wall cylindrical part by inflating an air bag, and improves the rigidity of the thin-wall cylindrical part by an air bag supporting method. The method has the limitations that the material of the air bag is not clear, the structural design is only suitable for processing the inner surface of the thin-wall cylindrical part, the supporting method is more suitable for the thin-wall cylindrical part with a smooth supporting surface, and the supporting effect of the thin-wall cylindrical part with an uneven supporting surface is not ideal. If the material of the air bag is too hard, the air bag is difficult to fill in the small depressions on the supporting surface of the thin-wall cylindrical part, and if the material of the air bag is too soft, the supporting function of the air bag is greatly reduced, and the rigidity of the thin-wall cylindrical part is slightly increased.
The prior art discloses a method for extruding and filling a thin-wall cylinder barrel to stably process an outer circle, which fills an inner cavity of a thin-wall cylinder piece by using a method of filling cotton yarn, an air bag and an air expansion shaft. This method is inefficient, time and labor consuming to operate, and the support effect is not ideal, and the cotton yarn cannot be supported all the time. When the inner surface of the thin-wall cylindrical part is not a smooth surface but is uneven, the method is more difficult to realize, the cotton yarn can not be ensured to well fill each dent on the inner wall of the thin-wall cylindrical part, and the thin-wall cylindrical part can not be well supported.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an auxiliary supporting device for processing a thin-wall cylindrical part, which can solve the problem that a single-layer air bag is not suitable for supporting the thin-wall cylindrical part with an uneven supporting surface.
The second purpose of the invention is an auxiliary supporting system for processing thin-wall cylindrical parts, wherein gas is used as a filling medium of an air bag, and the auxiliary supporting system can provide comprehensive rigidity support for the thin-wall cylindrical parts.
The third purpose of the invention is to provide a method for using the auxiliary supporting system for thin-wall cylindrical part machining, which is simple to operate and can improve the working efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the embodiment of the invention provides an auxiliary supporting device for processing a thin-wall cylindrical part, which comprises an inner air bag and an outer air bag which are sleeved together, wherein a plurality of air inlet valves and exhaust valves are arranged between the inner air bag and the outer air bag; under the control of the air inlet valve, the inner layer air bag and the outer layer air bag are sequentially expanded to realize the support of the thin-wall cylindrical piece to be processed.
As a further implementation mode, the air inlet valves and the air outlet valves are in one-to-one correspondence, are provided with a plurality of groups, are arranged on the interface of the inner layer air bag and the outer layer air bag, and are uniformly distributed along the axial direction and the circumferential direction.
As a further realization mode, the outer wall of the inner layer air bag is provided with a valve core.
As a further realization mode, the material of the outer layer air bag is made of a high-elasticity soft material. The hardness of the material of the inner layer air bag is greater than that of the material of the outer layer air bag.
In a second aspect, the embodiment of the present invention further provides an auxiliary supporting system for processing a thin-walled cylinder, which is characterized by comprising an inflation/deflation and air pressure detecting device and the auxiliary supporting device, wherein the auxiliary supporting device is detachably connected to the inflation/deflation and air pressure detecting device.
As a further implementation manner, the inflation, deflation and air pressure detection device comprises a pumping and inflating dual-purpose vacuum pump, a hose, an inflation nozzle, an air pressure meter, an air pressure control valve and a computer, wherein one end of the hose is connected with the inflation nozzle, and the other end of the hose is connected with the pumping and inflating dual-purpose vacuum pump; the hose is provided with an air pressure control valve and an air pressure meter; the barometer is connected with the computer.
As a further implementation, the hose is a high pressure resistant hose.
In a third aspect, an embodiment of the present invention further provides a method for using an auxiliary support system for thin-walled cylinder machining, including:
placing the auxiliary support device in an uninflated state in the inner cavity structure of the thin-walled cylindrical member; presetting an air pressure value of an air pressure control valve;
when the dual-purpose vacuum pump works, the inflating nozzle is connected with the valve inside, and the dual-purpose vacuum pump is pumped to inflate the inner-layer air bag; when the pressure of the inner layer air bag exceeds the rated pressure value of the air inlet valve, the air inlet valve is conducted, the outer layer air bag starts to inflate, and the inflation is finished until the air pressure value reaches the set value of the air pressure control valve;
in the working process, the comparison condition of the air pressure change curve and the theoretical curve is observed in real time through a computer connected with the barometer, when the air pressure change curve and the theoretical curve deviate from the set degree, the auxiliary supporting system is considered to be in fault, and the air bag is required to be replaced in time;
after the work is finished, the valve inside is connected with the inflating nozzle, and the dual-purpose vacuum pump is pumped for pumping; the air in the inner layer air bag is firstly removed, when the air pressure difference between the inner layer air bag and the outer layer air bag reaches the air pressure rated value of the exhaust valve, the exhaust valve is conducted, the outer layer air bag starts to exhaust until the air in the outer layer air bag is discharged to the initial capacity.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
(1) one or more embodiments of the invention adopt a double-layer air bag structure, two-stage inflation is carried out, before the operation, the air bag is in a dry-shriveled state, the air bag is integrally placed in an inner cavity of a thin-wall cylindrical part, the first-stage inner-layer air bag is inflated firstly, the inner-layer air bag is contacted with a convex surface of the inner wall of the thin-wall cylindrical part after being inflated, the function of integrally supporting a part can be achieved, the air bag is ensured to be in a proper axial position in the inner cavity of the thin-wall cylindrical part, and the air bag and the thin-wall cylindrical part are relatively static. When the air pressure of the inner layer air bag reaches the conduction value of the air inlet valve, the valve of the air inlet valve is opened, the second-stage outer layer air bag is inflated to be in contact with the concave surface of the thin-wall cylindrical part, so that the concave-convex surface of the thin-wall cylindrical part is supported, and the rigidity during processing is improved.
(2) The inner layer air bag of one or more embodiments of the invention is made of nitrile rubber material, and is hard, so that the supporting device can provide enough rigidity; the outer layer air bag is made of butyl rubber materials, so that the air bag can be well attached to the concave parts of the concave-convex different supporting surfaces of the thin-wall cylindrical part, and the maximization of the integral rigidity is achieved; the problem that rigid support cannot be adopted due to narrow space between thin-wall structures is solved, and additional deformation of the annular thin-wall cylindrical part cannot be caused; the structure is simple and firm, the production is convenient, the use is convenient, and the supporting effect is good;
(3) one or more embodiments of the invention adopt gas as the filling medium of the supporting bag, can provide comprehensive rigidity support for the thin-walled cylindrical part, on one hand because of the function of the gas supporting bag in the course of processing, can increase the rigidity of every part of the thin-walled structure to the same extent; on the other hand, as the rigidity difference is unchanged, but the rigidity of each part on the surface of the thin-wall cylindrical part is increased, the rigidity ratio of each part of the thin-wall cylindrical part is reduced, the change curve of the rigidity tends to be smooth, and the supporting force of the thin-wall cylindrical part is more uniform, so that the processing deformation of the thin-wall cylindrical part is reduced, the flutter in processing is reduced, the processing noise is directly reduced, the processing error is reduced, and the processing precision is improved; the filler is air, so that the energy is saved and the environment is protected; moreover, when the device is in a non-working state, the occupied volume is small;
(4) one or more embodiments of the invention adopt the pumping and beating dual-purpose vacuum pump to supply and exhaust air, which can ensure the high efficiency of the device and greatly reduce the preparation time; the air pressure control valve is arranged, so that the safety of the device is improved;
(5) according to one or more embodiments of the invention, the air pressure value of the inner-layer air bag and the outer-layer air bag in the inflation process can be obtained through the barometer and transmitted to the computer, the relation curve of the air pressure value P and the time t can be drawn on the computer in real time, and whether the device has a fault can be visually distinguished by comparing the real-time curve with a theoretical curve on a product specification.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic block diagram of the present invention according to one or more embodiments;
FIG. 2 is a cross-sectional view of an operating condition of the present invention along an intake valve according to one or more embodiments;
FIG. 3 is a cross-sectional view of the present invention along an exhaust valve in accordance with one or more embodiments;
FIG. 4 is a schematic diagram of a thin-walled cylinder with asperities in the support surface according to one or more embodiments of the invention;
FIG. 5 is a system diagram in accordance with one or more embodiments of the invention;
FIG. 6 is a graph showing the variation of the pressure P with time t during the inflation process under normal operating conditions;
wherein, the air bag comprises 1-an outer layer air bag, 2-an inner layer air bag, 3-an air inlet valve, 4-an exhaust valve, 5-an air valve core, 6-an inflating nozzle, 7-a hose, 8-an air pressure control valve, 9-a pumping and inflating dual-purpose vacuum pump, 10-a thin-wall cylindrical part, 11-an air pressure gauge and 12-a computer.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
the terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected directly or indirectly through an intermediate medium, or the two components can be connected internally or in an interaction relationship, and the terms can be understood by those skilled in the art according to specific situations.
As described in the background art, the thin-walled cylindrical member is easily deformed and vibrated during the machining process, and therefore, it is important to support the thin-walled cylindrical member in an auxiliary manner in order to improve the machining accuracy of the thin-walled cylindrical member. For the problem of improving the processing rigidity of the thin-wall cylindrical part, in the prior art, a single-layer air bag supporting and cotton yarn filling mode is adopted, the problems that the application range is narrow, the thin-wall cylindrical part with an uneven supporting surface cannot be suitable for supporting, and the cotton yarn filling method is troublesome and labor-consuming and poor in effect exist, and in order to solve the technical problems, the invention provides an auxiliary supporting device, a system and a method for processing the thin-wall cylindrical part.
The first embodiment is as follows:
the present invention is described in detail below with reference to fig. 1 to 4, and specifically, the structure is as follows:
the embodiment provides an auxiliary supporting device for processing a thin-wall cylindrical part, which comprises an outer layer air bag 1, an inner layer air bag 2, an air inlet valve 3 and an air outlet valve 4, wherein the inner layer air bag 2 is arranged inside the outer layer air bag 1. The outer layer air bag 1 and the inner layer air bag 2 are both annular air bags with the length corresponding to that of the thin-wall cylindrical part 10 to be processed, and in an initial state, a supporting device with the size corresponding to that of the thin-wall cylindrical part 10 is placed in an inner cavity structure of the thin-wall cylindrical part 10 in an uninflated state.
The outer wall of the inner layer air bag 2 is provided with a valve core 5 which is used for connecting an inflation/deflation and air pressure detection device. An air inlet valve 3 and an air outlet valve 4 are arranged between the inner layer air bag 2 and the outer layer air bag 1. When the air is inflated, the inner layer air bag 2 is inflated firstly, and when the pressure of the inner layer air bag 2 exceeds the rated pressure value of the air inlet valve 3, the air inlet valve 3 is conducted, and the outer layer air bag 1 starts to be inflated. When the air is exhausted, the air in the inner layer air bag 2 is exhausted firstly, when the air pressure difference between the inner layer air bag 2 and the outer layer air bag 1 reaches the air pressure rated value of the exhaust valve 4, the exhaust valve 4 is conducted, and the outer layer air bag 1 starts to exhaust.
The air inlet valves 3 and the air outlet valves 4 are in one-to-one correspondence and are provided with a plurality of groups, are arranged on the interface of the inner layer air bag 2 and the outer layer air bag 1, and are uniformly distributed along the axial direction and the circumferential direction. In the present embodiment, the intake valves 3 are arranged in two rows symmetrically with respect to the centers of the inner bag 2 and the outer bag 1, the exhaust valves 4 are arranged in two rows symmetrically with respect to the centers of the inner bag 2 and the outer bag 1, and a line between the two rows of intake valves 3 is perpendicular to a line between the two rows of exhaust valves 4. The arrangement mode of the air inlet valve 3 and the air outlet valve 4 can enable the air bag to uniformly intake and exhaust air in the axial direction. It will be appreciated that in other embodiments the inlet valves 3 and the exhaust valves 4 may be arranged in a plurality of rows, depending on the actual support requirements.
The material of the outer layer air bag 1 is a high-elasticity soft material, and the hardness of the material of the inner layer air bag 2 is greater than that of the material of the outer layer air bag. In the present embodiment, the material of the outer airbag 1 is butyl rubber, which has high elasticity, tear resistance, fatigue resistance, and excellent air tightness. The inner layer air bag 2 is made of nitrile rubber, and the material has the characteristics of good wear resistance, high hardness, aging resistance and chemical corrosion resistance. It will be appreciated that in other embodiments, other materials may be selected for the outer and inner bladders 1, 2.
Because the common single-layer air bag is made of a single material, the thin-wall cylindrical part 10 cannot be well attached. The airbag material is too soft and hardly plays a role in increasing the rigidity of the thin-wall cylindrical part 10; if the bladder material is too hard, the thin-walled cylinder 10 with the irregularities of the support surface will not fill well into each of the depressions of its support surface. In the embodiment, the integral rigidity is ensured by the hard material (nitrile rubber) on the inner layer, and the good filling effect on the supporting surface of the uneven thin-wall cylindrical part 10 can be realized by the soft material (butyl rubber) on the outer layer.
The common single-layer airbag is more suitable for supporting the thin-wall cylindrical part 10 with a smooth surface, and the embodiment is suitable for supporting the thin-wall cylindrical part 10 with a smooth surface and the thin-wall cylindrical part 10 with an uneven surface. The auxiliary supporting device of the embodiment reduces the processing deformation of the thin-wall structure and reduces the vibration in processing; meanwhile, the problem that the supporting is difficult in a narrow space is solved, and the additional deformation of the annular thin-wall cylindrical part 10 cannot be caused; and further solves the problems of large processing deformation, difficult guarantee of processing surface quality and the like caused by weak rigidity in the cutting process of the annular thin-wall cylindrical part 10.
The present embodiment uses gas as the filling medium for the inner bag 2 and the outer bag 1, and can provide overall rigidity support to the thin-walled cylindrical member 10. On one hand, the rigidity of each part of the thin-wall structure can be increased to the same extent due to the action of the gas bearing bag in the processing process; on the other hand, as the rigidity difference is unchanged, but the rigidity of each part on the surface of the thin-wall cylindrical part 10 is increased, the rigidity ratio of each part of the thin-wall cylindrical part 10 is reduced, so that the change curve of the rigidity tends to be smooth, and the supporting force of the thin-wall deep cavity is more uniform; therefore, the processing deformation of the thin-wall structure is reduced, the vibration in processing is reduced, the processing noise is directly reduced, the processing error is reduced, and the processing precision is improved.
Example two:
the embodiment provides an auxiliary supporting system for thin-wall cylindrical part processing, as shown in fig. 5, the auxiliary supporting system comprises an embodiment one of the auxiliary supporting device, an inflating nozzle 6, a hose 7, an air pressure control valve 8, a pumping and inflating dual-purpose vacuum pump 9, an air pressure gauge 11 and a computer 12, one end of the inflating nozzle 6 is connected with a valve core 5, the other end of the inflating nozzle 6 is connected with the pumping and inflating dual-purpose vacuum pump 9 through the hose 7, the air pressure control valve 8 and the air pressure gauge 11 are installed on the hose 7, and the air pressure gauge 11 is connected with the computer 12 to perform real-time data transmission. In this embodiment, the hose 7 is a high pressure hose.
The air pressure control valve 8 can realize the automatic setting of a proper upper limit air pressure value, when the pressure of the filling medium in the supporting device reaches the set upper limit of the air pressure, the air pressure control valve 8 is closed, and the purpose that the supporting device is filled with constant pressure every time is realized. When the air inlet valve 3 between the inner layer air bag 2 and the outer layer air bag 1 is in failure, the air pressure control valve 8 is closed when the pressure of the air pressure control valve 8 reaches the set upper limit of air pressure, and the air bag can be well protected from bursting.
In the initial state, a supporting device with the size corresponding to the size of the thin-wall cylindrical part 10 is placed in the inner cavity structure in the uninflated state; the air pressure value of the air pressure control valve 8 is set in advance, and this value is obtained through experiments.
When the double-purpose vacuum pump works, the inflating nozzle 6 is connected with the valve core 5, and the inner-layer air bag 2 is inflated by the pumping and inflating dual-purpose vacuum pump 9. When the pressure of the inner layer air bag 2 exceeds the rated pressure value of the air inlet valve 3, the air inlet valve 3 is conducted, the outer layer air bag 1 starts to inflate, and the inflation is finished until the air pressure value reaches the set value of the air pressure control valve 8.
During the operation, the comparison between the air pressure change curve and the theoretical curve can be observed in real time through the computer 12 connected with the barometer 11, when the deviation is large, the auxiliary supporting system is considered to be in failure (possibly air bag leakage, air inlet valve failure and air bag material aging), and the air bag is replaced in time.
After the work is finished, the valve core 5 is connected with the inflating nozzle 6, and the pumping and beating dual-purpose vacuum pump 9 is used for pumping air. The air in the inner layer air bag 2 is firstly removed, when the air pressure difference between the inner layer air bag 2 and the outer layer air bag 1 reaches the air pressure rated value of the exhaust valve 4, the exhaust valve 4 is conducted, the outer layer air bag 1 starts to exhaust until the air in the outer layer air bag 1 is exhausted to the initial capacity, and at the moment, the two layers of air bags become the shriveled state.
In the inflation process of the present embodiment, the theoretical basis of the change curve of the air pressure with time is as follows: according to the ideal gas state equation, PV — nRT, where T denotes temperature (assuming no change), R denotes gas constant, n denotes the mass of the gas, and n increases at a constant rate during homogeneous inflation.
When the inner bag 2 is inflated (uniformly inflated with time), P rises with a slope k1 with time t, and when the pressure of the inner bag 2 reaches the conduction value of the intake valve 3, the outer bag 1 starts to inflate, and since the outer bag 1 is softer and less rigid than the inner bag 2, the rate of change of V becomes larger than that in the first stage, and then the rate of change of P becomes smaller.
Thus, after the inlet valve 3 is switched on, P rises with a slope k2 with time t, where k2< k 1; when the outer envelope 1 fills the recess (filled with gas) of the thin-walled cylinder 10, V becomes constant and P rises with a slope k3 with time t, where k3> k1, and when the gas pressure reaches the set value of the gas pressure control valve 8, the gas supply is stopped, i.e. the vacuum pump is turned off, and the thin-walled cylinder is fully tightened.
Before the product leaves a factory, data is firstly tested, after the air passage is connected, the barometer 11 is connected to the computer 12, and the change curve of the air pressure P in the air passage along with the time t can be obtained in real time through data acquisition and data processing of the computer 12. As shown in fig. 6, the air pressure values of the first curve are related to the sizes of two members, and the air pressure values of the second and third curves are related to the actual conditions of the members (member size, material, rigidity, etc.).
When the product is sold, the standard air pressure curve is noted in the specification and is used as reference when the product is actually used by a client. In actual use, if the air pressure value deviates from the standard curve too much, the air bag may be aged and damaged, and the air inlet valve may be failed. At this time, the replacement should be performed in time.
The embodiment has simple operation, only needs to press gas as filling medium into and out of the supporting device, reduces preparation time and improves working efficiency.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. An auxiliary supporting device for processing a thin-wall cylindrical part is characterized by comprising an inner air bag and an outer air bag which are sleeved together, wherein the inner air bag is arranged in the outer air bag, and a plurality of air inlet valves and exhaust valves are arranged between the inner air bag and the outer air bag; under the control of an air inlet valve, the inner layer air bag and the outer layer air bag sequentially expand to realize the support of the thin-wall cylindrical piece to be processed; the air inlet valves and the air outlet valves are in one-to-one correspondence, are provided with a plurality of groups, are arranged at the interface of the inner layer air bag and the outer layer air bag, and are uniformly distributed along the axial direction and the circumferential direction.
2. The auxiliary supporting device for processing the thin-walled cylindrical member as claimed in claim 1, wherein the positions of the air inlet valve and the air outlet valve are symmetrical with respect to the centers of the inner bladder and the outer bladder.
3. The auxiliary supporting device for processing the thin-walled cylindrical part as claimed in claim 1, wherein the outer wall of the inner air bag is provided with a valve core.
4. The auxiliary supporting device for processing the thin-walled cylindrical member as claimed in claim 1, wherein the material of the outer air bag is selected from a high-elasticity soft material.
5. An auxiliary supporting device for processing a thin-walled cylindrical member as claimed in claim 4, wherein the hardness of the material of the inner bladder is greater than that of the material of the outer bladder.
6. An auxiliary support system for thin-walled cylinder processing, comprising an inflation/deflation and air pressure detection device and an auxiliary support device according to any of claims 1 to 5, wherein the auxiliary support device is detachably connected with the inflation/deflation and air pressure detection device.
7. The auxiliary supporting system for processing the thin-wall cylindrical part as claimed in claim 6, wherein the inflation/deflation and air pressure detection device comprises a pumping and inflating dual-purpose vacuum pump, a hose, an inflation nozzle, an air pressure meter, an air pressure control valve and a computer, wherein one end of the hose is connected with the inflation nozzle, and the other end of the hose is connected with the pumping and inflating dual-purpose vacuum pump; the hose is provided with an air pressure control valve and an air pressure meter; the barometer is connected with the computer.
8. An auxiliary support system for thin-walled cylindrical workpiece machining according to claim 7 wherein said hose is a high pressure hose.
9. The use method of an auxiliary support system for thin-walled cylinder machining according to claim 8, characterized by comprising:
placing the auxiliary support device in an uninflated state in the inner cavity structure of the thin-walled cylindrical member; presetting an air pressure value of an air pressure control valve;
when the dual-purpose vacuum pump works, the inflating nozzle is connected with the valve inside, and the dual-purpose vacuum pump is pumped to inflate the inner-layer air bag; when the pressure of the inner layer air bag exceeds the rated pressure value of the air inlet valve, the air inlet valve is conducted, the outer layer air bag starts to inflate, and the inflation is finished until the air pressure value reaches the set value of the air pressure control valve;
in the working process, the comparison condition of the air pressure change curve and the theoretical curve is observed in real time through a computer connected with the barometer, when the air pressure change curve and the theoretical curve deviate from the set degree, the auxiliary supporting system is considered to be in fault, and the air bag is required to be replaced in time;
after the work is finished, the valve inside is connected with the inflating nozzle, and the dual-purpose vacuum pump is pumped for pumping; the air in the inner layer air bag is firstly removed, when the air pressure difference between the inner layer air bag and the outer layer air bag reaches the air pressure rated value of the exhaust valve, the exhaust valve is conducted, the outer layer air bag starts to exhaust until the air in the outer layer air bag is discharged to the initial capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124729.5A CN111230527B (en) | 2020-02-27 | 2020-02-27 | Auxiliary supporting device, system and method for thin-wall cylindrical part machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124729.5A CN111230527B (en) | 2020-02-27 | 2020-02-27 | Auxiliary supporting device, system and method for thin-wall cylindrical part machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111230527A CN111230527A (en) | 2020-06-05 |
| CN111230527B true CN111230527B (en) | 2021-01-22 |
Family
ID=70862150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010124729.5A Active CN111230527B (en) | 2020-02-27 | 2020-02-27 | Auxiliary supporting device, system and method for thin-wall cylindrical part machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111230527B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735875B (en) * | 2020-07-21 | 2020-11-17 | 中南大学 | Device and method for measuring radial acoustic characteristics of rock core |
| CN111993173B (en) * | 2020-08-29 | 2022-06-07 | 中国航发南方工业有限公司 | Device for processing thin-wall blind hole slender shaft |
| CN113224894A (en) * | 2020-11-22 | 2021-08-06 | 李波波 | Aluminum alloy motor shell and installation method |
| CN113305598B (en) * | 2021-06-09 | 2024-04-19 | 霍山嘉远智能制造有限公司 | Multi-station machining tool for valve rod hole of thin eccentric butterfly valve |
| CN113843504B (en) * | 2021-10-13 | 2022-12-06 | 大连理工大学 | Automatic welding equipment and method for thin-wall non-rotary tank barrel |
| CN114871801B (en) * | 2022-06-01 | 2024-03-08 | 沈阳飞机工业（集团）有限公司 | Clamp and method for precisely turning inner hole of flanged aluminum alloy thin-wall cylinder |
| CN116423306A (en) * | 2023-04-25 | 2023-07-14 | 扬州澳洋顺昌金属材料有限公司 | Surface treatment pretreatment equipment |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190704988A (en) * | 1906-06-20 | 1908-05-01 | Alexander Heyland | Improvements in Rotary Transformers Permitting the Transformation of Alternating Current into Continuous Current and vice versa. |
| JPH04111735A (en) * | 1990-08-31 | 1992-04-13 | Suzuki Motor Corp | Clamping device for workpiece |
| CN2776846Y (en) * | 2005-01-26 | 2006-05-03 | 李峰 | Adjustable aeration type backing device of aviation seat |
| CN201907005U (en) * | 2010-12-15 | 2011-07-27 | 安徽省岳西缸套有限公司 | Air bag clamp |
| CN104625772A (en) * | 2013-11-08 | 2015-05-20 | 无锡市雪江环境工程设备有限公司 | Steel tube machining clamp |
| CN104014831A (en) * | 2014-05-23 | 2014-09-03 | 南京农业大学 | Method and clamp for clamping thin-walled cylinder-shaped workpieces |
| CN104691787A (en) * | 2014-12-31 | 2015-06-10 | 哈尔滨工业大学 | Inflatable spreading support framework for multi-layer sandwich air inflation cabin |
| CN104741627B (en) * | 2015-03-03 | 2017-09-26 | 长治清华机械厂 | A kind of thin-walled cylinder barrel extrusion packing stable state processing excircles method |
| EP3517161B1 (en) * | 2016-09-21 | 2021-06-16 | Asahi Intecc Co., Ltd. | Catheter and balloon catheter |
| CN106740612A (en) * | 2016-11-10 | 2017-05-31 | 刘红才 | Buffer device for collision |
| CN106736756A (en) * | 2017-01-13 | 2017-05-31 | 山东大学 | It is a kind of to wait rigidity bearing servicing unit and method for the chamber processing of annular thin wall depth |
| CN207390898U (en) * | 2017-09-25 | 2018-05-22 | 嘉兴市永邦机电有限公司 | A kind of high security inflating jack |
| CN108326777A (en) * | 2018-03-07 | 2018-07-27 | 北京软体机器人科技有限公司 | Inner bearing type fixture based on air bag |
| CN108581567A (en) * | 2018-05-30 | 2018-09-28 | 姚冬冬 | A kind of thin-wall sleeve parts clamping tooling |
| CN109262292A (en) * | 2018-12-11 | 2019-01-25 | 河南理工大学 | With the fluid pressure type fixture and its application method of Internal hole positioning automated exchanged cutter thin-walled steel bushing |
-
2020
- 2020-02-27 CN CN202010124729.5A patent/CN111230527B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111230527A (en) | 2020-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111230527B (en) | Auxiliary supporting device, system and method for thin-wall cylindrical part machining | |
| CN101793584B (en) | Large-diameter pipeline sealing property detection device and method | |
| EP3437862A1 (en) | Controlling application of forces to different portions of object surface using bladder | |
| EP3437863B1 (en) | Controlling application of forces to different portions of object surface using flexible wall | |
| CN101367200B (en) | Polishing pad finishing head | |
| EP3199386B1 (en) | Valve stem-based air maintenance tire and method | |
| US6953054B2 (en) | Relief valve | |
| CN112620677A (en) | Thin metal shell turning tool | |
| CN108087262A (en) | A kind of high-pressure high-flow plunger pump | |
| CN211465587U (en) | Pneumatic supporting tool inside barrel part | |
| CN114871987A (en) | Anti-deformation device for assembling sealing ring and using method | |
| CN112824046B (en) | Inner wall combined sand prevention plug for sand blasting of external threads of oil casing and anti-blocking method thereof | |
| CN109915353B (en) | Quality control air bag type clearance stepless adjustment executing mechanism and method | |
| CN108443265B (en) | Compressed air engine with pooling feature | |
| CN107120321A (en) | A kind of power saving energy accumulator | |
| CN210014013U (en) | Inflatable internal expanding type inner hole plugging device | |
| CN206374468U (en) | A kind of fast-assembling inner tube of a tyre | |
| CN114458656B (en) | Hydraulic oil cylinder with axial support protection | |
| CN219788378U (en) | Flexible clamping jaw mechanism | |
| CN217762330U (en) | Pressure release valve of air compressor | |
| CN2738034Y (en) | Sheath type air spring | |
| CN216478958U (en) | Stirling refrigerator is with aerifing frock | |
| CN217300838U (en) | Integral anti-rotation air valve unloader with flow guide sleeve | |
| CN215950767U (en) | Device for blocking and intercepting water of pipeline | |
| CN113231850B (en) | Rigid-free inner hub flexible supporting device for complex thin-walled part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |