Bushing and extrusion tool with same
A technology for extrusion tools and bushings, which is applied in the field of bushings and extrusion tools with the bushings, can solve the problems of bushing strengthening adverse effects, increased processing costs, lack of speed, etc., to reduce springback and improve quality , Good effect of processing and strengthening
Pending Publication Date: 2021-11-09
烟台安递飞戈材料疲劳技术有限公司
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Problems solved by technology
[0002] The existing bushes are all made of metal, and there is a gap in the axial direction. The performance is limited during use, and the bushes cannot be restored after deformation. Therefore, most of the existing bushes are disposable. Moreover, after the bushing is strengthened, the ridges will flow down the inner hole, which needs to be removed by a special tool in the later stage, which increases the processing cost; the corresponding extrusion tool generally consists of a core head and a mandrel. When working, the bushing will Set on the mandrel, the pulling gun will drive the mandrel and core head through the bushing, fasten and ream the bushing, lack of speed control, and have an adverse effect on the strengthening of the bushing
Method used
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[0029] In order to enable those in the technical field to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0030] Such as Figure 1-8 As shown, a bushing includes a sleeve and a through hole axially passing through the sleeve; the sleeve is made of liquid metal, and the sleeve is set as a closed ring; when the sleeve is subjected to a circumferential expansion force , the bushing will undergo elastic deformation, and the diameter of the through hole will become larger. After the external force disappears, the diameter of the through hole can be restored. The bushing made of the superelasticity of liquid metal can realize the repeated use of the bushing 5-10 times. At the same time, the liquid metal bushing does not need to be slit, which eliminates the ridges caused by process...
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Abstract
The invention discloses a bushing and an extrusion tool with same. The bushing is made of liquid metal; a through hole is formed in the bushing; the extrusion tool comprises a main body, a storage arm, a strengthening tool connecting part, a core head and a driving control mechanism arranged on the main body; the driving control mechanism comprises a storage bin arranged on the main body, a pressurizing spring arranged in the storage bin, a sliding block fixedly connected to the storage arm and slidably connected to the storage bin, a driving hole formed in the storage arm, a driving rod rotatably connected to the driving hole, a special-shaped groove formed in the driving rod and a special-shaped rod, a linkage rod connected with the special-shaped rod, a control flange fixedly connected to the linkage rod, a sliding shaft rotatably connected to the control flange, and a driving shaft slidably connected to the sliding shaft; and a driving control mechanism is arranged, so that the working speed of the extrusion tool can be adjusted according to the wall thickness of the bushing, and the optimal machining strengthening work is achieved.
Description
technical field [0001] The invention belongs to the technical field of extrusion tools, in particular to a bushing and an extrusion tool with the bushing. Background technique [0002] The existing bushes are all made of metal, and there is a gap in the axial direction. The performance is limited during use, and the bushes cannot be restored after deformation. Therefore, most of the existing bushes are disposable. Moreover, after the bushing is strengthened, the ridges will flow down the inner hole, which needs to be removed by a special tool in the later stage, which increases the processing cost; the corresponding extrusion tool generally consists of a core head and a mandrel. When working, the bushing will Set on the mandrel, the pulling gun will drive the mandrel and the core head to pass through the bushing, fasten and ream the bushing, lack of speed control, and have an adverse effect on the strengthening of the bushing. Contents of the invention [0003] In order t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B21C25/02B21C31/00
CPCB21C25/02B21C31/00Y02P70/10
Inventor 盛利涛
Owner 烟台安递飞戈材料疲劳技术有限公司