CN114346269A - Flexible clamping and positioning tool and method for thin-wall complex-profile product - Google Patents
Flexible clamping and positioning tool and method for thin-wall complex-profile product Download PDFInfo
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- CN114346269A CN114346269A CN202111651025.4A CN202111651025A CN114346269A CN 114346269 A CN114346269 A CN 114346269A CN 202111651025 A CN202111651025 A CN 202111651025A CN 114346269 A CN114346269 A CN 114346269A
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- 238000003825 pressing Methods 0.000 claims description 13
- 238000003754 machining Methods 0.000 description 4
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Abstract
The invention discloses a flexible clamping and positioning tool and a method for a thin-wall complex-profile product, wherein the flexible clamping and positioning tool comprises a workbench, a headstock, a centre, an angular support, a flexible clamping device and a tailstock; the headstock and the tailstock are respectively arranged at two ends of the workbench, and are provided with finials for aligning the center line of the product; the angular bearing is used for supporting the product to realize positioning; the flexible clamping device is arranged on a workbench between the headstock and the tailstock, flexibly adjusted according to the surface appearance of a product, and locked after being in place. The invention can ensure the alignment precision requirement of the product on the premise of quick clamping.
Description
Technical Field
The invention relates to the technical field of machining of ramjet engine air inlet parts, in particular to a flexible clamping and positioning tool and method for a thin-wall complex-profile product.
Background
The air inlet channel in the ramjet is one of key parts of the engine, is formed by assembling and welding machining parts, sheet metal parts, forged parts, castings and the like which are made of materials difficult to machine, such as a plurality of titanium alloys and the like, a bracket welded in a manual welding mode needs to be machined after welding, and the machining precision requirement after welding is high. The clamping alignment times are many in processing, the clamping is easy to deform after clamping, the requirement on the skill of an operator is high, the product quality is influenced, and the production efficiency and the delivery cycle are restricted.
Disclosure of Invention
In view of the above, the invention provides a flexible clamping and positioning tool and method for a thin-wall complex-profile product, which can ensure the alignment precision requirement of the product on the premise of rapid clamping.
The technical scheme adopted by the invention is as follows:
a flexible clamping and positioning tool for a thin-wall complex-profile product comprises a workbench, a headstock, a centre, an angular bearing, a flexible clamping device and a tailstock;
the headstock and the tailstock are respectively arranged at two ends of the workbench, and are provided with apexes for aligning a center line of a product; the angular bearings are used for supporting the product to realize positioning; the flexible clamping device is arranged on a workbench between the headstock and the tailstock, flexibly adjusted according to the surface appearance of a product, and locked after being in place.
Furthermore, the flexible clamping device comprises a clamping unit and a locking device, wherein the clamping unit adopts an elastic element and adapts to different surface appearances of products; the locking device adopts hydraulic equipment.
Furthermore, the flexible clamping and positioning tool further comprises a pressing plate, and the pressing plate is used for being matched with the angular support to fix a product.
A flexible clamping and positioning method for a thin-wall complex-profile product adopts the flexible clamping and positioning tool, and comprises the following steps:
step one, a headstock side center and a tailstock side center are adopted to support two ends of a product and center a center line; then the angular support fixes the angular direction to realize product positioning;
and step two, flexibly adjusting the part positioning surface appearance by adopting a flexible clamping device, clamping and locking the part after the part positioning surface appearance is in place, and finishing the positioning and clamping work.
Further, the first step also comprises the step of utilizing a pressure plate to assist in pressing the upper surface of the product, so that the product is kept balanced; and after the clamping and locking are completed, the pressing plate is loosened for subsequent processing.
Has the advantages that:
1. the invention provides a flexible clamping tool with stronger universality, a flexible clamping device is designed near the processing characteristics, flexible adjustment can be carried out according to the surface appearance of a product, the problems of large deformation of the welded product and poor consistency of processing positioning reference are solved, and the clamping, alignment times and the adjusting process of parts are reduced; when the positioning reference surface is not attached, the clamping force is flexibly adjusted and locked after being in place, so that the deformation of the part in the machining process is ensured to be within a controllable range, and the precision requirement of the machined product is effectively ensured.
2. The clamping unit of the flexible clamping device adopts the elastic element, so that the attaching degree of the elastic element and a product can be ensured, the elastic clamping device is suitable for different surface appearances of thin-wall complex-profile products, and the product clamping is not easy to deform.
3. The invention adds the pressing plate for auxiliary pressing, thereby further ensuring the product clamping and the processed surface level.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the flexible clamping device.
The device comprises a workbench, a 2-headstock, a 3-tailstock, a 4-centre I, a 5-centre II, a 6-flexible clamping device, a 7-pressing plate, an 8-angular support, a 9-product, a 10-lower supporting block, an 11-heightening block, a 12-vice and a 13-positioning block.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides a flexible clamping and positioning tool for a thin-wall complex-profile product, which comprises a workbench 1, a headstock 2, a centre, an angular support 8, a flexible clamping device 6, a pressure plate 7 and a tailstock 3, and is shown in figure 1.
The headstock 2 and the tailstock 3 are respectively arranged at two ends of the workbench 1, the headstock 2 is provided with a centre I4, and the tailstock 3 is provided with a centre II 5 for aligning the center line of the product 9; the angular bearings 8 are used for supporting the products 9 for positioning; the pressure plate 7 is used to cooperate with the angular supports 8 to achieve the fixing of the product 9. In this embodiment, the machined surface of the product 9 is located at the head of the product 9, and thus both the angle bearing and the platen 7 are disposed on the headstock 2 side.
The flexible clamping device 6 is arranged on the workbench 1 between the headstock 2 and the tailstock 3, and is flexibly adjusted according to the surface appearance of a product 9 and locked after being in place.
The flexible clamping device 6 comprises a clamping unit and a locking device, wherein the clamping unit adopts an elastic element and adapts to different surface appearances of the product 9; the locking device adopts hydraulic equipment. As shown in fig. 2, the product 9 is placed on the lower holder block 10, and the lower holder block 10 is fixed to the vise 12; the both sides of product 9 are by the centre gripping unit centre gripping, and the centre gripping unit passes through bed hedge piece 11 to be fixed on vice 12, and vice 12 passes through locating piece 13 to be fixed on workstation 1.
The flexible clamping and positioning method comprises the following steps:
step one, a headstock 2 side center I4 and a tailstock 3 side center II 5 are adopted to prop against two ends of a product 9 and center and align a center line, the headstock 2 side center I4 is used as a reference, and the tailstock 3 side center II 5 is manually pushed tightly; then the angular support 8 at the bottom of the product 9 orients the angular direction to realize the positioning of the product 9;
step two, the pressing plate 7 is manually operated to assist in pressing the upper surface of the product 9, so that the product 9 is kept balanced without being screwed down vigorously, and the subsequent flexible clamping operation is facilitated;
and step three, flexibly adjusting the flexible clamping device 6 according to the shape of the positioning surface of the part, and hydraulically clamping and locking the part by using a locking device after the part is in place to finish the positioning and clamping work.
And step four, after all the clamping operations are finished, loosening the pressing plate 7, pulling backwards to make the upper processing surface clear, and finishing the positioning and clamping work, so as to achieve the purposes of positioning and clamping.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A flexible clamping and positioning tool for a thin-wall complex-profile product is characterized by comprising a workbench, a headstock, a centre, an angular bearing, a flexible clamping device and a tailstock;
the headstock and the tailstock are respectively arranged at two ends of the workbench, and are provided with apexes for aligning a center line of a product; the angular bearings are used for supporting the product to realize positioning; the flexible clamping device is arranged on a workbench between the headstock and the tailstock, flexibly adjusted according to the surface appearance of a product, and locked after being in place.
2. The flexible clamping and positioning tool for the thin-walled complex-profile product according to claim 1, wherein the flexible clamping device comprises a clamping unit and a locking device, and the clamping unit adopts an elastic element and is adapted to different surface appearances of the product; the locking device adopts hydraulic equipment.
3. The flexible clamping and positioning tool for the thin-walled complex-profile product according to claim 1, further comprising a pressing plate for fixing the product by cooperating with the angular support.
4. A flexible clamping and positioning method for a thin-wall complex-profile product is characterized in that the flexible clamping and positioning tool of claim 1 is adopted, and the flexible clamping and positioning method comprises the following steps:
step one, a headstock side center and a tailstock side center are adopted to support two ends of a product and center a center line; then the angular support fixes the angular direction to realize product positioning;
and step two, flexibly adjusting the part positioning surface appearance by adopting a flexible clamping device, clamping and locking the part after the part positioning surface appearance is in place, and finishing the positioning and clamping work.
5. The flexible clamping and positioning tool for the thin-walled complex-profile product according to claim 4, wherein the first step further comprises the step of pressing the upper surface of the product with a pressure plate to keep the product balanced; and after the clamping and locking are completed, the pressing plate is loosened for subsequent processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651025.4A CN114346269A (en) | 2021-12-30 | 2021-12-30 | Flexible clamping and positioning tool and method for thin-wall complex-profile product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651025.4A CN114346269A (en) | 2021-12-30 | 2021-12-30 | Flexible clamping and positioning tool and method for thin-wall complex-profile product |
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| CN114346269A true CN114346269A (en) | 2022-04-15 |
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| CN202111651025.4A Pending CN114346269A (en) | 2021-12-30 | 2021-12-30 | Flexible clamping and positioning tool and method for thin-wall complex-profile product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115816083A (en) * | 2022-11-28 | 2023-03-21 | 北京航星机器制造有限公司 | Device and method for processing thin-walled parts |
| CN115816083B (en) * | 2022-11-28 | 2025-10-17 | 北京航星机器制造有限公司 | Thin-wall part machining device and method |
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| CN104942615A (en) * | 2015-06-30 | 2015-09-30 | 安徽埃夫特智能装备有限公司 | Industrial robot transmission shaft key groove machining fixture |
| CN105014438A (en) * | 2015-08-19 | 2015-11-04 | 安徽合力股份有限公司 | Fixture with elastic clamping mechanism |
| CN207710291U (en) * | 2017-12-29 | 2018-08-10 | 南京嘉玺数控科技有限公司 | A kind of boring and milling machine workbench of processing new-energy automobile rear axle |
| CN109590776A (en) * | 2018-12-12 | 2019-04-09 | 成都飞机工业（集团）有限责任公司 | A kind of flexible fixture and clamping method based on magnetorheological fluid |
| CN212170140U (en) * | 2020-02-28 | 2020-12-18 | 徐州宝盈新能源科技有限公司 | Clamping device for lithium battery machining |
| CN113579807A (en) * | 2021-07-26 | 2021-11-02 | 重庆美心翼申机械股份有限公司 | Clamping fixture for milling key grooves at two ends of crankshaft |
| CN214559218U (en) * | 2021-03-31 | 2021-11-02 | 青岛海诺机械制造有限公司 | Automatic positioning device for special-shaped pipe fittings |
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2021
- 2021-12-30 CN CN202111651025.4A patent/CN114346269A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942615A (en) * | 2015-06-30 | 2015-09-30 | 安徽埃夫特智能装备有限公司 | Industrial robot transmission shaft key groove machining fixture |
| CN105014438A (en) * | 2015-08-19 | 2015-11-04 | 安徽合力股份有限公司 | Fixture with elastic clamping mechanism |
| CN207710291U (en) * | 2017-12-29 | 2018-08-10 | 南京嘉玺数控科技有限公司 | A kind of boring and milling machine workbench of processing new-energy automobile rear axle |
| CN109590776A (en) * | 2018-12-12 | 2019-04-09 | 成都飞机工业（集团）有限责任公司 | A kind of flexible fixture and clamping method based on magnetorheological fluid |
| CN212170140U (en) * | 2020-02-28 | 2020-12-18 | 徐州宝盈新能源科技有限公司 | Clamping device for lithium battery machining |
| CN214559218U (en) * | 2021-03-31 | 2021-11-02 | 青岛海诺机械制造有限公司 | Automatic positioning device for special-shaped pipe fittings |
| CN113579807A (en) * | 2021-07-26 | 2021-11-02 | 重庆美心翼申机械股份有限公司 | Clamping fixture for milling key grooves at two ends of crankshaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115816083A (en) * | 2022-11-28 | 2023-03-21 | 北京航星机器制造有限公司 | Device and method for processing thin-walled parts |
| CN115816083B (en) * | 2022-11-28 | 2025-10-17 | 北京航星机器制造有限公司 | Thin-wall part machining device and method |
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