CN112547941A - Numerical control incremental thermoforming device with heat insulation coating and supporting plate - Google Patents
Numerical control incremental thermoforming device with heat insulation coating and supporting plate Download PDFInfo
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- CN112547941A CN112547941A CN202011350898.7A CN202011350898A CN112547941A CN 112547941 A CN112547941 A CN 112547941A CN 202011350898 A CN202011350898 A CN 202011350898A CN 112547941 A CN112547941 A CN 112547941A
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- plate
- heating
- heat insulation
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- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention discloses a numerical control incremental thermoforming device with a heat insulation coating and a supporting plate, which comprises a device body and a temperature controller connected with a sensor in the device body through a lead; the device body comprises a plate heating and clamping device, a support body device, a heating and supporting die device and a heat preservation device; the plate heating and clamping device is arranged on the upper part of the support body device; and a heating supporting die device is arranged at the lower part of the heating clamping device, and a heat preservation device is arranged outside the heating supporting die device. The invention can realize integral heating in numerical control incremental forming, so that a forming area is heated all the time, the plasticity of a plate is improved, and the forming performance and the size precision of a product are improved.
Description
Technical Field
The invention belongs to the technical field of novel metal material processing, and particularly relates to a numerical control incremental thermoforming device with a heat insulation coating and a supporting plate.
Background
The numerical control incremental forming technology for the sheet material is based on the idea of layered manufacturing, three-dimensional thin-wall parts are subjected to two-dimension, a machine tool is controlled by using a programmed numerical control code to drive a forming tool head to move along a processing track, the tool head presses the material point by point and layer by layer, the material is subjected to plastic deformation, and the required part shape is finally obtained. The plate incremental forming can be divided into two processes of supported and unsupported, and compared with the unsupported process, the supported incremental forming can obtain parts with complex shapes and higher dimensional accuracy. The principle is shown in fig. 6. For some materials with poor plasticity at normal temperature and large required forming force, such as some aluminum alloys, magnesium alloys, titanium alloys and the like. Under the heating condition, the plasticity of the material is greatly improved, and the deformation resistance is obviously reduced. For such metal materials, it is necessary to perform heating assistance in the incremental forming process. The traditional heating of progressively forming can divide into whole heating and local heating, and traditional heating methods exist a lot of not enoughly:
1. the integral heating progressive forming can effectively improve the integral plasticity of the material and reduce the forming force. The existing heating devices of the electric heating furnace, such as heating devices of the electric heating furnace, integral self-resistance electric heating devices and the like have the disadvantages of complex design, uneven temperature distribution and poor quality of formed parts. The whole self-resistance electric heating current and the blank form a loop, the current flows through the tool head, the plate and the clamping device, the requirements on the insulating property of a forming tool and the clamping device are high, the system is complex, and the obtained workpiece has the defect of serious ablation and even burnthrough caused by current fluctuation.
2. The local heating incremental forming usually adopts the modes of laser heating, self-resistance electric heating, induction heating, gas heating and the like, and a heating tool is usually connected to an incremental forming tool head and moves along with the forming tool head to realize local heating. Local heating devices are often complex systems and expensive.
Disclosure of Invention
The present invention aims to solve or improve the above-mentioned problems by providing a numerically controlled incremental hot forming apparatus with a heat insulating coating for supporting a sheet material.
In order to achieve the purpose, the invention adopts the technical scheme that:
a numerical control incremental thermoforming device with a heat insulation coating and supporting plates comprises a device body and a temperature controller connected with a sensor in the device body through a lead; the device body comprises a plate heating and clamping device, a support body device, a heating and supporting die device and a heat preservation device; the plate heating and clamping device is arranged on the upper part of the support body device; and a heating supporting die device is arranged at the lower part of the heating clamping device, and a heat preservation device is arranged outside the heating supporting die device.
Preferably, the plate heating and clamping device comprises an upper clamping plate, a lower clamping plate and an upper temperature sensor; an upper heat insulation plate is arranged above the upper clamping plate, and a lower heat insulation plate is arranged below the lower clamping plate; the upper clamping plate and the lower clamping plate are connected through an upper fastening bolt; the lower clamping plate is internally provided with a single-end electric heating tube which is connected with a power supply through a lead.
Preferably, the upper temperature sensor is in signal connection with the temperature controller through a lead.
Preferably, the panel heating and clamping device is connected with the sliding plate on the supporting body device through a bolt penetrating through the lower heat insulation plate.
Preferably, the support body arrangement comprises a sliding plate; guide sleeves are arranged at four corners of the sliding plate and are in sliding fit with guide pillars fixedly arranged on the lower bottom plate; each guide post is sleeved with a spring which enables the sliding plate to slide downwards stably.
Preferably, the heating support die device comprises a support die and a lower temperature sensor; the supporting die penetrates through the heat insulation base plate through a lower fastening bolt to be connected with the lower bottom plate; the lower single-end electric heating tube in the supporting die is connected with a power supply through a lead.
Preferably, the lower temperature sensor is arranged in the support die and is in signal connection with the temperature controller through a lead.
Preferably, the heat preservation device comprises an upper fixed cover, a middle cover and a lower fixed cover; the upper fixed cover is connected with the sliding plate through an upper locking bolt, and the lower fixed cover is connected with a lower bottom plate on the support body device through a lower locking bolt; an intermediate cover is arranged between the upper fixed cover and the lower fixed cover.
Preferably, the intermediate cover comprises a plurality of Z-shaped cover plates, and the upper fixed cover, the lower fixed cover and the intermediate cover are in sliding fit with each other and adjacent Z-shaped cover plates in the intermediate cover.
Preferably, the lower heat insulation plate, the upper heat insulation plate, the heat insulation backing plate, the upper fixing cover, the lower fixing cover and the middle cover are made of asbestos or quartz, and the surfaces of the lower heat insulation plate, the upper heat insulation backing plate, the upper fixing cover, the lower fixing cover and the middle cover are coated with ceramic heat insulation coatings.
The numerical control incremental thermoforming device with the heat insulation coating and the supporting plate provided by the invention has the following beneficial effects:
the invention can realize integral heating in numerical control incremental forming, so that a forming area is heated all the time, the plasticity of a plate is improved, and the forming performance and the size precision of a product are improved.
The four sides and the central forming area of the plate are heated simultaneously, the temperature distribution is uniform, so that the formability of the material is improved, and compared with the traditional mode, the forming structure of the plate can be a complex part thin-wall part.
The temperature sensor is used for acquiring temperature signals in real time, the temperature controller is used for supplying power and controlling the temperature, the temperature is kept constant, the material performance is accurately regulated and controlled, and the performance of a formed part is improved.
The heat preservation device adopting the heat insulation coating reduces heat loss caused by convection and heat conduction, improves heat efficiency, reduces energy consumption, saves manufacturing and maintenance cost, and is green and environment-friendly.
Drawings
Figure 1 is a perspective view of a numerically controlled progressive hot forming apparatus with a support slab with a thermal insulation coating.
FIG. 2 is a half-section perspective view of a body of the numerical control incremental hot forming device with a support plate material and a heat insulation coating.
Figure 3 is a top view of a numerically controlled progressive hot forming apparatus with a support slab with a thermal barrier coating.
Fig. 4 is a sectional view taken along a-a in fig. 3.
Figure 5 is a partially sectioned perspective view of the lower jaw with a thermally insulating coating and a numerically controlled progressive thermoforming device for supporting slabs.
FIG. 6 is a drawing of a conventional non-heating process.
Wherein, 1, a plate heating and clamping device; 11. an upper heat insulation plate; 12. an upper splint; 13. fastening a bolt; 14. a single-ended electric heating tube; 15. a lower splint; 16. a lower heat insulation plate; 17. an upper temperature sensor; 18. a wire; 2. a support body device; 21. a guide post; 22. a guide sleeve; 23. a sliding plate; 24. a spring; 25. a lower base plate; 3. heating the support die device; 31. supporting the mold; 32. a lower fastening bolt; 33. a lower single-end electric heating tube; 34. a lower temperature sensor; 35. a heat insulating base plate; 4. a heat preservation device; 41. locking the bolt; 42. an upper fixing cover; 43. a middle cover; 44. a lower fixing cover; 45. and a lower locking bolt.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
According to an embodiment of the application, referring to fig. 1-5, the numerical control incremental thermoforming device with the support plate material and the heat insulation coating comprises a device body and a controller, wherein the device body is used for connecting a sensor in the device with a two-way temperature controller in the controller through a lead, a contactor is connected with a single-end electric heating tube, and the temperature controller is connected with the contactor in a control box to realize the on-off of power supply.
The device body comprises a plate heating and clamping device 1, a support body device 2, a heating and supporting die device 3 and a heat preservation device 4, wherein the plate heating and clamping device 1 is arranged on the upper portion of the support body device 2, the heating and supporting die device 3 is arranged on the lower portion of the heating and clamping device, and the heat preservation device 4 is arranged outside the heating and supporting die device 3.
Each device within the device body will be described in detail below.
The plate heating and clamping device 1 comprises an upper heat insulation plate 11, an upper clamping plate 12, an upper fastening bolt 13, a single-end electric heating tube 14, a lower clamping plate 15, a lower heat insulation plate 16, an upper temperature sensor 17 and a lead 18.
An upper heat insulation plate 11 is arranged above an upper clamping plate 12, a lower heat insulation plate 16 is arranged below a lower clamping plate 15, the upper clamping plate 12 is connected with the lower clamping plate 15 through an upper fixing bolt 13, a single-end electric heating tube 14 is arranged in the lower clamping plate 15, the single-end electric heating tube 14 is connected with a power supply through a lead 18, and an upper temperature sensor 17 is in signal connection with a temperature controller through the lead 18.
The lower heat-insulating plate 16 and the upper heat-insulating plate 11 are made of asbestos or quartz materials, and heat-insulating coatings, optionally ceramic coatings, are coated on the surfaces of the lower heat-insulating plate and the upper heat-insulating plate, so that heat can be insulated from being dissipated outwards, the wear resistance can be improved, and the service life can be prolonged.
The working principle of the plate heating and clamping device 1 is as follows:
the panel heating and clamping device 1 is connected with the sliding plate 23 of the support body device 2 by bolts penetrating through the lower heat insulation plate 16. When the heat insulation plate fixing device works, the upper heat insulation plate 11 is firstly removed, the upper fixing bolt 13 is then removed, the upper clamping plate 12 is removed at the moment, a plate material with round holes on the periphery is placed on the lower clamping plate 15 to be aligned, the upper clamping plate 12 is placed on the plate material to be aligned, the fixing bolt is locked, and the upper heat insulation plate 11 is placed on the upper clamping plate 12 after being aligned.
The controller switch is turned on, the power supply is connected, the current flows into the single-end electric heating tube 14 arranged in the lower clamping plate 15 through the lead 18 to start heating, the heat is transmitted to the plate after being equalized through the lower clamping plate 15, and the detected temperature signal is transmitted to the temperature controller in the controller through the lead 18 by the upper temperature sensor 17. When the temperature reaches the set temperature, the tool head can start the numerical control incremental forming processing.
The support body device 2 includes a guide post 21, a guide bush 22, a slide plate 23, a spring 24, and a lower plate 25.
The working principle of the support body device 2 is as follows:
when the plate is clamped and heated to a preset temperature, a forming tool applies force to the plate, the acting force is transmitted to the sliding plate 23 through the plate heating and clamping device 1, guide sleeves 22 are arranged at four corners of the sliding plate 23, the guide sleeves 22 are in sliding fit with guide columns 21 arranged on a lower bottom plate 25, the sliding plate 23 stably slides downwards under the support of springs 24 and gradually contacts with a support die 31 in a heating and supporting die device 3, and parts are gradually formed.
The heating support die device 3 includes a support die 31, a lower fastening bolt 32, a lower single-end electric heating pipe 33, a lower temperature sensor 34, and a heat insulating shim plate 35.
The supporting die 31 is connected with the lower bottom plate 25 by a lower fastening bolt 32 through a heat insulation backing plate 35; the support die 31 is internally provided with a lower single-end electric heating pipe 33, the lower single-end electric heating pipe 33 is connected with a power supply through a lead 18, and a lower temperature sensor 34 is arranged in the support die 31 and is in signal connection with a temperature controller through the lead 18.
The heat insulation backing plate 35 is made of asbestos or quartz, heat insulation coatings are coated on the surfaces of the heat insulation backing plate, and ceramic coatings can be selected, so that heat can be isolated from being dissipated outwards, the wear resistance can be improved, and the service life can be prolonged.
The working principle of the heating support die 31 device 3 is as follows:
after the plate heating and clamping device 1 clamps the plate, a controller switch is started, a power supply is switched on, current flows into a lower single-end electric heating pipe 33 arranged in the supporting die 31 through a lead 18, and a lower temperature sensor 34 transmits a detected temperature signal to a temperature controller in the controller through the lead 18. And when the temperature reaches the set temperature, starting heat preservation. The support mold 31 is coupled to the lower plate 25 through the heat insulating mat 35 by lower fastening bolts 32.
The heat retaining device 4 includes an upper lock bolt 41, an upper fixing cover 42, an intermediate cover 43, a lower fixing cover 44, and a lower lock bolt 45.
The upper fixing cover 42 is connected with the sliding plate 23 through an upper locking bolt 41, and the lower fixing cover 44 is connected with the lower bottom plate 25 on the support body device 2 through a lower locking bolt 45; an intermediate cover 43 is installed between the upper fixing cover 42 and the lower fixing cover 44.
The upper fixing cover 42, the lower fixing cover 44 and the middle cover 43 are made of asbestos or quartz materials, heat insulation coatings are coated on the surfaces of the upper fixing cover, the lower fixing cover and the middle cover, and ceramic coatings are selected, so that heat can be isolated from being dissipated outwards, the wear resistance can be improved, and the service life can be prolonged.
The working principle of the heat preservation device 4 is as follows:
the upper fixing cover 42 is connected to the sliding plate 23 by an upper locking bolt 41, the lower fixing cover 44 is connected to the lower plate 25 of the lower supporter device 2 by a lower locking bolt 45, and an intermediate cover 43 is installed between the upper fixing cover 42 and the lower fixing cover 44.
The intermediate cover 43 is composed of a plurality of cover plates shaped like a Z, and the lower fixed cover 44 of the upper fixed cover 42 is in sliding fit with the intermediate cover 43 and the cover plates of the intermediate cover 43.
When the numerical control incremental forming is carried out, the heat preservation device 4 contracts along with the downward movement of the sliding plate 23, the acting force is gradually removed along with the upward movement of the forming tool head after the part is formed, and the heat preservation device 4 extends along with the upward movement of the sliding plate 23 under the action of the spring 24.
The invention uses the lower splint 15 and the supporting die 31 which are provided with the single-end electric heating tube 14 as heat sources to quickly heat the plate materials which are directly contacted with the lower splint 15 and the supporting die 31, transmits real-time temperature signals to the temperature controller through two paths of temperature sensors which are arranged in the lower splint 15 and the supporting die 31, and controls the contactor to be opened and closed for power supply through presetting upper and lower temperature limits to realize constant temperature control.
The heat preservation device 4 installed between the lower base plate 25 and the sliding plate 23 can reduce heat loss caused by air convection, the heat insulation coating on the inner and outer surfaces of the heat preservation device 4 can reduce heat loss caused by heat conduction, and the lower heat insulation backing plate 35 and the upper heat insulation backing plate 35 are also coated with heat insulation coatings to reduce heat loss. The invention can realize integral heating in numerical control incremental forming, always heats a forming area, improves sheet plasticity and improves forming performance and size precision of products.
While the embodiments of the invention have been described in detail in connection with the accompanying drawings, it is not intended to limit the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (10)
1. The utility model provides a take adiabatic coating have a support sheet material numerical control thermoforming device that advances gradually which characterized in that: comprises a device body and a temperature controller connected with a sensor in the device body through a lead; the device body comprises a plate heating and clamping device, a support body device, a heating and supporting die device and a heat preservation device; the plate heating and clamping device is arranged on the upper part of the support body device; and a heating supporting die device is arranged at the lower part of the heating clamping device, and a heat preservation device is arranged outside the heating supporting die device.
2. The apparatus according to claim 1, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the plate heating and clamping device comprises an upper clamping plate, a lower clamping plate and an upper temperature sensor; an upper heat insulation plate is arranged above the upper clamping plate, and a lower heat insulation plate is arranged below the lower clamping plate; the upper clamping plate and the lower clamping plate are connected through an upper fastening bolt; the lower clamping plate is internally provided with a single-end electric heating tube which is connected with a power supply through a lead.
3. The apparatus according to claim 2, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the upper temperature sensor is in signal connection with the temperature controller through a lead.
4. The apparatus according to claim 1, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the plate heating and clamping device penetrates through the lower heat insulation plate through a bolt to be connected with the sliding plate on the supporting body device.
5. The apparatus according to claim 1, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the support body arrangement comprises a sliding plate; guide sleeves are arranged at four corners of the sliding plate and are in sliding fit with guide pillars fixedly arranged on the lower bottom plate; each guide post is sleeved with a spring which enables the sliding plate to stably slide downwards.
6. The apparatus according to claim 1, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the heating support die device comprises a support die and a lower temperature sensor; the supporting die penetrates through the heat insulation base plate through a lower fastening bolt to be connected with the lower bottom plate; the lower single-end electric heating tube is arranged in the supporting die and is connected with a power supply through a lead.
7. The apparatus according to claim 6, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the lower temperature sensor is arranged in the supporting die and is in signal connection with the temperature controller through a lead.
8. The apparatus according to claim 1, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the heat preservation device comprises an upper fixing cover, a middle cover and a lower fixing cover; the upper fixed cover is connected with the sliding plate through an upper locking bolt, and the lower fixed cover is connected with a lower bottom plate on the support body device through a lower locking bolt; and a middle cover is arranged between the upper fixed cover and the lower fixed cover.
9. The apparatus according to claim 8, characterized in that it comprises a numerically controlled progressive thermoforming device of a supported slab with insulating coating, characterized in that: the middle cover comprises a plurality of Z-shaped cover plates, and the upper fixed cover, the lower fixed cover and the middle cover are in sliding fit with each other and the adjacent Z-shaped cover plates in the middle cover.
10. The apparatus for numerically controlled progressive thermoforming of supported sheet with thermal insulating coating according to any of claims 1-9, characterized in that: the lower heat insulation plate, the upper heat insulation plate, the heat insulation base plate, the upper fixing cover, the lower fixing cover and the middle cover are made of asbestos or quartz, and ceramic heat insulation coatings are coated on the surfaces of the asbestos or quartz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350898.7A CN112547941A (en) | 2020-11-26 | 2020-11-26 | Numerical control incremental thermoforming device with heat insulation coating and supporting plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350898.7A CN112547941A (en) | 2020-11-26 | 2020-11-26 | Numerical control incremental thermoforming device with heat insulation coating and supporting plate |
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| CN112547941A true CN112547941A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011350898.7A Pending CN112547941A (en) | 2020-11-26 | 2020-11-26 | Numerical control incremental thermoforming device with heat insulation coating and supporting plate |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07132329A (en) * | 1993-11-11 | 1995-05-23 | Shigeo Matsubara | Method and device for forming metal plate |
| CN101347810A (en) * | 2008-08-22 | 2009-01-21 | 江苏大学 | Nc incremental magnesium alloy sheet thermoforming method and heating mechanism thereof |
| US20090158805A1 (en) * | 2005-04-22 | 2009-06-25 | Bart Callebaut | Asymmetric incremental sheet forming system |
| CN104875068A (en) * | 2015-05-03 | 2015-09-02 | 安庆安星电气有限公司 | Drilling machine iron chip shielding device |
| CN105710205A (en) * | 2016-04-06 | 2016-06-29 | 北京航空航天大学 | Self-blocked heating incremental forming device for whole plate |
| CN205587512U (en) * | 2016-03-17 | 2016-09-21 | 沈阳航空航天大学 | Progressive forward of numerical control takes shape and uses fixture device |
| CN207219349U (en) * | 2017-09-22 | 2018-04-13 | 王文英 | A kind of safe and efficient tree planting pit-picker |
| CN110508673A (en) * | 2019-07-23 | 2019-11-29 | 南京航空航天大学 | A kind of device and method of progressive molding and spinning combined shaping |
| CN111774472A (en) * | 2020-07-31 | 2020-10-16 | 重庆交通大学 | Floating support single-point progressive hot forming device |
-
2020
- 2020-11-26 CN CN202011350898.7A patent/CN112547941A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07132329A (en) * | 1993-11-11 | 1995-05-23 | Shigeo Matsubara | Method and device for forming metal plate |
| US20090158805A1 (en) * | 2005-04-22 | 2009-06-25 | Bart Callebaut | Asymmetric incremental sheet forming system |
| CN101347810A (en) * | 2008-08-22 | 2009-01-21 | 江苏大学 | Nc incremental magnesium alloy sheet thermoforming method and heating mechanism thereof |
| CN104875068A (en) * | 2015-05-03 | 2015-09-02 | 安庆安星电气有限公司 | Drilling machine iron chip shielding device |
| CN205587512U (en) * | 2016-03-17 | 2016-09-21 | 沈阳航空航天大学 | Progressive forward of numerical control takes shape and uses fixture device |
| CN105710205A (en) * | 2016-04-06 | 2016-06-29 | 北京航空航天大学 | Self-blocked heating incremental forming device for whole plate |
| CN207219349U (en) * | 2017-09-22 | 2018-04-13 | 王文英 | A kind of safe and efficient tree planting pit-picker |
| CN110508673A (en) * | 2019-07-23 | 2019-11-29 | 南京航空航天大学 | A kind of device and method of progressive molding and spinning combined shaping |
| CN111774472A (en) * | 2020-07-31 | 2020-10-16 | 重庆交通大学 | Floating support single-point progressive hot forming device |
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| CB03 | Change of inventor or designer information |
Inventor after: An Zhiguo Inventor after: Zhou Shuqiang Inventor after: Wang Aijun Inventor after: He Zhengchen Inventor after: Guo Qingfeng Inventor after: Zhou Lixia Inventor before: An Zhiguo Inventor before: Zhou Shuqiang Inventor before: Wang Aijun Inventor before: He Zhengchen Inventor before: Guo Qingfeng Inventor before: Zhou Lixia |
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Application publication date: 20210326 |
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