Ring part positioning tool with adjustable radial positioning seam allowance
A radial positioning and positioning tooling technology, applied in positioning devices, manufacturing tools, metal processing equipment, etc., can solve the problems of unqualified dimensional machining accuracy, difficulty in preventing cutting deformation, and difficulty in ensuring small tolerance dimensions of thin-walled parts, etc., to achieve The effect of reliable positioning, preventing positioning failure and avoiding waste
Pending Publication Date: 2021-12-28
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Problems solved by technology
However, for thin-walled parts, it is difficult to prevent cutting deformation only through point positioning, resulting in unqualified dimensional machining accuracy
The use of ring-type special fixtures with positioning spigots can solve the problems of cutting deformation and tool clearance to a certain extent, but it is still difficult to guarantee the small tolerance size of thin-walled parts
The main reason is that the positioning notch of the special fixture is fixed, but the diameter of each part will be different due to the machining error of the previous process, so there is no guarantee that there will be no gap between the part and the positioning notch
Method used
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Embodiment
[0026] Such as image 3 Shown: The positioning tooling for ring parts with adjustable positioning spigot is composed of four parts, including: base plate 1, positioning spigot 3, transmission device and adjustment device.
[0027] Bottom plate 1: There is a chute 13 on the bottom plate 1, and the prismatic sliding body 2 can slide radially in the chute 13 (see figure 2 ); the base plate 1 has a threaded hole, and the transmission rod seat 7 can be fixed on the base plate 1 through the hole 16 using a screw connection; the base plate 1 has a positioning hole 21 (see Figure 5 ), for cooperating with the locating pin 22 that has at the bottom of the fixed box 8 to realize the radial constraint of the fixed box 8; the bottom plate 1 has a threaded hole 23 (see Image 6 ), connect the fixed box body 8 and the bottom plate 1 with nuts, and realize the axial constraint of the fixed box body 8.
[0028] Positioning seam 3: There are two countersunk threaded holes 14 on the positio...
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The invention discloses a ring part positioning tool with an adjustable radial positioning seam allowance. The ring part positioning tool comprises a bottom plate 1, wherein an adjusting device is mounted at the center of the bottom plate 1; when the adjusting device ascends, a transmission device is driven to move outwards along the radial direction; the transmission device is connected with the positioning seam allowance 3; and the positioning seam allowance 3 is mounted on the bottom plate 1 in a sliding manner. With the adoption of the technical scheme, the positioning failure caused by the fact that the positioning size of the tool is fixed and the sizes of parts in the same batch are different can be prevented; and meanwhile, wastes caused by the fact that different positioning tools are manufactured for the parts with different diameters are avoided, so that the machining sizes of the parts can be guaranteed, the production cost can be reduced and the production efficiency is improved.
Description
technical field [0001] The invention relates to a tool, in particular to positioning in the processing of ring parts, in particular to a ring part positioning tool capable of realizing adjustable radial positioning dimensions. Background technique [0002] In the turning and milling of ring parts, it is necessary to use positioning and pressing devices to ensure that the parts will not be displaced during processing. Generally, traditional pressing plates can be used for pressing and positioning to basically achieve this purpose. However, for thin-walled parts, it is difficult to prevent cutting deformation only through point positioning, resulting in unqualified dimensional machining accuracy. The use of ring-type special fixtures with positioning spigots can solve the problems of cutting deformation and tool clearance to a certain extent, but it is still difficult to guarantee the small tolerance size of thin-walled parts. The main reason is that the positioning spigot of...
Claims
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IPC IPC(8): B23Q3/06
CPCB23Q3/062
Inventor 陈世尧杨大江龙羽翔朱梦余长久王方建韦正
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD