General clamp for abrasive flow polishing of complicated hole surface

An abrasive flow and hole surface technology, applied in the direction of grinding workpiece supports, can solve the problems of fixture design, increased manufacturing workload, poor economy, waste of manpower and material resources, etc., and achieves low cost, universal fixtures, and wide adaptive effect

Inactive Publication Date: 2015-04-29
CHANGCHUN UNIV OF SCI & TECH
6 Cites 39 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0004] The invention discloses a universal jig for complex hole surface abrasive flow polishing to solve the problem that when there are many types of parts to be polished in the prior art, the nu...
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Abstract

The invention discloses a general clamp for abrasive flow polishing of a complicated hole surface. The general clamp comprises a clamp body and one or more embedded modules; the clamp body is provided with uniformly distributed threaded holes in the peripheral direction; the clamp body comprises a lower pressing plate, a sleeve, an upper pressing plate and a sealing ring; the upper pressing plate and the sleeve are connected in a fastened manner; the lower pressing plate is connected with the sleeve; the upper pressing plate is provided with embedded module connecting holes and abrasive flow channel holes; the embedded modules are arranged in the clamp body; the embedded modules are detachably connected with the upper pressing plate in a fastened manner; the embedded modules compresses a non-polishing surface of a polished workpiece; the upper pressing plate is provided with the embedded module connecting holes uniformly distributed in the peripheral direction, and the embedded module connecting holes are used for connecting with different embedded modules; the abrasive flowing channel holes of the upper pressing plate are axially parallel to the polishing surface of the polished workpiece; the abrasive flow circulates in the abrasive flow channel holes in the part, which is not pressed and covered, of the upper pressing plate; when the surface of the polished workpiece is a curved surface, a columnar surface or a hole parallel to the direction of the abrasive flow, the embedded modules of corresponding shapes are replaced and recombined according to the appearance surface of the polished workpiece.

Application Domain

Technology Topic

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  • General clamp for abrasive flow polishing of complicated hole surface
  • General clamp for abrasive flow polishing of complicated hole surface
  • General clamp for abrasive flow polishing of complicated hole surface

Examples

  • Experimental program(1)

Example Embodiment

[0014] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0015] Examples of the present invention figure 1 , figure 2 , image 3 , Figure 4 As shown, this embodiment includes a clamp body, an embedded module, and bolts 13; the clamp body includes a lower guide sleeve 1, an upper guide sleeve 2, a lower pressure plate 3, a sleeve 4, an upper pressure plate 5, a sealing ring 6, and a bolt 7. , nut 8; the upper pressure plate 5 has a built-in module connection hole 5a, and the abrasive flow channel hole 5b distributed in the circumferential radial direction; the upper pressure plate 5 abrasive flow channel hole 5b is axially parallel to the polished surface of the polished workpiece 14; The sleeve 2, the upper pressure plate 5 and the sleeve 4 are tightly connected; the sealing ring 6 is installed between the joint surface between the lower guide sleeve 1 and the lower pressure plate 3, the lower guide sleeve 1 and the lower pressure plate 3 are tightly connected, and the lower pressure plate 3 Connected with the sleeve 4; the lower guide sleeve 1 and the upper guide sleeve 2 have circumferentially evenly distributed threaded holes for installation and fixation on different machine tools; the embedded module is installed in the fixture body; the embedded module and the upper pressure plate 5 It is fastened and connected by bolts 13; the clamp body positions and clamps the processed parts, guides the abrasive to reciprocate through the surface to be processed, and seals the flow channel; the embedded module has a circulation gap for the abrasive flow; the abrasive flow passes through the abrasive on the embedded module. The flow gap of the flow flows into the processing area in the fixture; when the abrasive particles flow into the fixture, the lower guide sleeve 1 and the upper guide sleeve 2 prevent the macro-flare phenomenon at the entrance due to elastic turbulence and the uneven flow rate will affect the polishing accuracy, making The elastic turbulence of the abrasive is completed in the guide sleeve, so when the abrasive passes through the corresponding channel to polish the workpiece, the flow of the abrasive is continuously stable, ensuring the stability of the polishing process.
[0016] The number of embedded modules is 4; when the polishing surface of the polished workpiece 14 is a tooth surface, the first embedded module includes a positioning mandrel 9, a compression nut 10, a compression knob 11, and a gasket 12; the polished workpiece 14 is installed by gears On the positioning mandrel 9 , the washer 12 is installed between the workpiece gear and the compression nut 10 , the compression knob 11 is above the compression nut 10 , and the compression knob 11 presses the compression nut 10 and is fastened to the positioning mandrel 9 On; the gear end surface of the workpiece 14 to be polished is pressed and covered by the center of the upper pressure plate 5, and the abrasive flow is circulated in the abrasive flow channel hole 5b where the end surface of the workpiece gear 14 is not pressed and covered by the upper pressure plate 5, so as to realize the gear tooth surface of the polished workpiece 14 polishing.
[0017] When the polishing surface of the workpiece to be polished is a cylindrical surface, the second embedded module presses the end face of the polished workpiece, the embedded module is fastened and installed on the upper pressure plate 5, the end surface of the workpiece is pressed and covers the center of the upper pressure plate 5, and the abrasive flows on the upper plate 5. The pressing plate 5 is not pressed by the end face of the workpiece and circulates through the abrasive flow channel hole 5b at the covered place, so as to realize the cylindrical polishing of the polished workpiece.
[0018] When the polishing surface of the workpiece to be polished is a hole, the third embedded module presses the end face of the polished workpiece, the embedded module is fastened and installed on the upper pressing plate 5, the end face of the workpiece is pressed and covers the center of the upper pressing plate 5, and the abrasive flows on the upper pressing plate. 5. The abrasive flow channel hole 5b at the place not pressed by the end face of the workpiece and covered is circulated, so as to realize the polishing of the polished workpiece hole.
[0019] When the outer contour of the polished workpiece is not polished and the polishing surface is a hole, the inner contour of the fourth embedded module is the same as the unpolished outer contour of the polished workpiece, and the inner contour of the fourth embedded module is in close contact with the unpolished outer contour of the polished workpiece. Tighten and cover the non-polishing surface of the polished workpiece to avoid polishing to the surface of the workpiece that does not need to be processed; the fourth embedded module presses the end face of the polished workpiece, the embedded module is firmly installed on the upper pressure plate 5, and the end face of the workpiece is pressed tightly In addition to covering the center of the upper platen 5, the abrasive flow flows through the abrasive flow channel hole 5b where the upper platen 5 is not pressed by the end face of the workpiece and is covered, so as to realize the polishing of the polished workpiece hole.
[0020] To achieve positioning and installation of different shapes and types of polished parts, it is only necessary to design the surface shape of the corresponding embedded module coupled with the surface of the polished part, replace and recombine the embedded modules, and then process different types of artifact.
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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