Thin-wall curved-surface conical cylinder inner hole positioning and clamping lathe fixture
A technology of positioning clamping and lathe fixtures, which is applied in the direction of positioning devices, clamping, manufacturing tools, etc., can solve the problems of thin wall thickness, inability to completely fix parts, and inability to meet the processing of such parts, so as to reduce deformation. Effect
Pending Publication Date: 2021-04-30
中船重工龙江广瀚燃气轮机有限公司
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Problems solved by technology
[0002] For thin-walled sheet metal parts and profiled curved surface parts, when turning the outer diameter, the traditional clamping fixture method is to position and compress the end face. However, due to the thin wall thickness of the part and the compression of the end mandrel, the part cannot be completely fixed. Easy to deform and move
Therefore, the traditional design scheme cannot meet the processing requirements of such parts
Method used
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[0013] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0014] combine Figure 1-2 , the present invention is a kind of thin-walled surface cone tube inner hole positioning and clamping lathe fixture, which consists of a clamping and positioning mechanism and a pressing mechanism; the clamping and positioning mechanism includes a mandrel 1, a positioning disc 2, an expansion block 3, a cover plate 4, Stop pin 5, cone 6, retaining ring 7, spring 9, pin 10, hold-down mechanism comprises adjusting nut 8 and screw, described mandrel 1 and positioning disc 2 are fixedly connected by screw 11, positioning disc 2 and The expansion block 3 is connected with the stop pin 5 and the spring 9, the cone 6 penetrates into the mandrel 1, and sticks to the slope of the expansion block 3, the retaining ring 7 is fixedly connected with the cone 6 through the bolt, and the adjusting nut 8 is connected with the core through the thread. A...
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The invention aims at providing a thin-wall curved-surface conical cylinder inner hole positioning and clamping lathe fixture. The thin-wall curved-surface conical cylinder inner hole positioning and clamping lathe fixture comprises a mandrel, a positioning disc, an expansion block and a cone, wherein the mandrel comprises a small cylinder part and a large cylinder part which are connected, an adjusting nut is mounted on the small cylinder part of the mandrel, and the positioning disc comprises a clamping part and a positioning part which are connected. The large cylindrical part of the mandrel is fixed with the positioning part of the positioning disc, the expansion block sleeves outside the mandrel, the expansion block comprises an inner layer and an outer layer, a spring is arranged between the inner layer and the outer layer, one end of a stop pin is fixed on the positioning part of the positioning disc, and the other end of the stop pin extrudes the spring on the inner layer. One side opposite to the mandrel, of the inner layer is a slope surface, the core is arranged on the mandrel in a sleeving manner, and the outer surface of the cone is attached to the slope surface of the outer layer of the expansion block. Similar thin-wall straight-surface or curved-surface sheet metal parts can be machined, design of controllable clamping force of spring adjustment is achieved, and deformation can be well reduced.
Description
technical field [0001] The invention relates to a lathe fixture, specifically an inner hole positioning fixture. Background technique [0002] For thin-walled sheet metal parts and profiled curved surface parts, when turning the outer diameter, the traditional clamping fixture method is to position and compress the end face. However, due to the thin wall thickness of the part and the compression of the end mandrel, the part cannot be completely fixed. Easy to deform and move. Therefore, the traditional design scheme cannot satisfy the processing of such parts. Contents of the invention [0003] The object of the present invention is to provide a lathe fixture for positioning and clamping the inner hole of a thin-walled curved cone cylinder with perfect positioning and control of clamping force. [0004] The purpose of the present invention is achieved like this: [0005] The present invention is a lathe fixture for positioning and clamping the inner hole of a thin-walle...
Claims
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Login to View More IPC IPC(8): B23Q3/12
CPCB23Q3/12
Inventor 王继鑫张雷周全崔凤鹏刘天宇姜嘉平刘影
Owner 中船重工龙江广瀚燃气轮机有限公司