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CN-121973097-A - Multi-station clamping device for processing ceramic surface

CN121973097ACN 121973097 ACN121973097 ACN 121973097ACN-121973097-A

Abstract

The invention discloses a multi-station clamping device for processing a ceramic surface, and aims to provide the multi-station clamping device for processing the ceramic surface, which is convenient to clamp, can realize high-precision batch clamping of cylindrical ceramic workpieces, and can effectively solve the problem that the surface or edge of brittle ceramic caused by clamping causes microcracks and even overall cracks. The clamping device comprises a base, a plurality of clamping units, a wedge block assembly, a clamping bolt and a movable clamping plate, wherein the base is fixedly provided with a bottom plate, the upper surface of the bottom plate is a horizontal supporting surface, the clamping units are distributed side by side and comprise vertical plates and are fixed on the supporting surface, the wedge block assembly comprises a fixed wedge block fixed on the supporting surface and a movable wedge block positioned between the fixed wedge block and the vertical plates, two opposite side surfaces of the fixed wedge block and the movable wedge block are inclined wedge surfaces which are mutually matched, the movable wedge block is provided with a strip-shaped hole penetrating through the upper surface and the lower surface of the movable wedge block, the clamping bolt penetrates through the strip-shaped hole and is connected into a screw hole of the supporting surface, and the movable clamping plate is fixed on the movable wedge block and is a vertical reference surface facing the side surface of the movable clamping plate.

Inventors

  • FAN HUI
  • YAO XIANGMIN
  • MA YUQI

Assignees

  • 杭州大和江东新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20251205

Claims (10)

  1. 1. A multistation clamping device of processing ceramic surface, characterized by includes: the base is fixedly provided with a bottom plate, and the upper surface of the bottom plate is a horizontal supporting surface; A plurality of clamping units distributed side by side, comprising: The vertical plate is fixed on the supporting surface; The wedge block assembly comprises a fixed wedge block fixed on the supporting surface and a movable wedge block positioned between the fixed wedge block and the vertical plate, wherein two opposite side surfaces of the fixed wedge block and the movable wedge block are mutually matched inclined wedge surfaces, and a strip-shaped hole penetrating through the upper surface and the lower surface of the movable wedge block is formed in the movable wedge block; the clamping bolt penetrates through the strip-shaped hole and is connected into the screw hole of the supporting surface; The movable clamping plate is fixed on one side of the movable wedge block, which faces the vertical plate, the side face of the vertical plate, which faces the movable clamping plate, is a vertical reference surface, the vertical reference surfaces of the clamping units are parallel, and the vertical plate and the movable clamping plate are made of plastic materials.
  2. 2. The multi-station clamping device for processing ceramic surfaces according to claim 1, further comprising: The transverse sliding rail is arranged on the base, the clamping units are sequentially distributed along the sliding rail, and the vertical reference surface is perpendicular to the sliding rail; The transverse sliding seat slides along the transverse sliding rail, and is provided with a locking screw; the longitudinal sliding seat is arranged on the transverse sliding seat in a sliding manner along the water direction, and the sliding direction of the longitudinal sliding seat is parallel to the vertical reference plane; The dial indicator or the dial indicator is fixed on the longitudinally moving slide seat.
  3. 3. The multi-station clamping device for machining the ceramic surface according to claim 2, wherein the dial indicator or the dial indicator is a lever dial indicator or a dial indicator, or the dial indicator is an inner diameter dial indicator or a dial indicator, and the dial indicator or the dial indicator detects the levelness of the inner hole axis of the cylindrical ceramic workpiece fixed on the clamping unit.
  4. 4. A multi-station clamping device for machining a ceramic surface according to claim 2 or 3, wherein the longitudinally moving sliding seat is provided with a bracket and an upward-opening mounting groove, the dial indicator or the dial indicator is positioned in the mounting groove, the bracket is provided with a locking bolt, the locking bolt is positioned above the mounting groove, and the dial indicator or the dial indicator is locked and fixed in the mounting groove.
  5. 5. The multi-station clamping device for machining the ceramic surface according to claim 1, 2 or 3, further comprising an adjusting assembly, wherein the levelness of the inner hole axis of the cylindrical ceramic workpiece mounted on the clamping unit is adjusted, the adjusting assembly corresponds to the clamping unit one by one, the adjusting assembly comprises two vertical screw holes arranged on the bottom plate, the two vertical screw holes are positioned in the middle of the clamping unit between the vertical plate and the movable clamping plate, the two vertical screw holes are sequentially distributed along the intersection line of the supporting surface and the vertical reference surface, and adjusting bolts are arranged in the vertical screw holes.
  6. 6. A multi-station clamping device for machining a ceramic surface according to claim 1,2 or 3, wherein the movable clamping plate comprises an inner clamping plate, an outer clamping plate and an elastic rubber layer arranged between the inner clamping plate and the outer clamping plate and connected with the inner clamping plate and the outer clamping plate, and the inner clamping plate is fixed on one side of the movable wedge block facing the vertical plate.
  7. 7. A multi-station clamping device for machining a ceramic surface according to claim 1,2 or 3, wherein one side surface of the bottom plate is a vertical limiting surface, and the vertical limiting surface is perpendicular to a vertical reference surface.
  8. 8. A multi-station clamping device for processing ceramic surfaces according to claim 1,2 or 3, wherein a side surface of the movable clamping plate facing the vertical plate is parallel to the vertical reference surface.
  9. 9. A multi-station clamping device for processing a ceramic surface according to claim 1,2 or 3, wherein a side surface of the movable clamping plate facing the vertical plate is a pressing inclined surface, the upper part of the pressing inclined surface is inclined towards the vertical plate, and the intersection line of the pressing inclined surface and the supporting surface is parallel to the vertical reference surface.
  10. 10. A multi-station clamping device for processing a ceramic surface according to claim 1,2 or 3, wherein the vertical plate is fixed on the supporting surface of the base plate through bolts, the fixed wedge is fixed on the supporting surface of the base plate through bolts, the base is provided with a magnetic attraction piece, and the two opposite sides of the base are provided with holding handles.

Description

Multi-station clamping device for processing ceramic surface Technical Field The invention relates to the technical field of ceramic processing, in particular to a multi-station clamping device for processing a ceramic surface. Background Ceramic materials are widely used in high-tech fields such as aerospace, precision instruments, semiconductors, biomedical and the like due to excellent performances such as high hardness, high wear resistance, high temperature resistance, corrosion resistance and the like. These fields place near-critical demands on the end face dimensional accuracy, geometric tolerances, and surface quality of ceramic critical parts. However, the inherent high brittleness and low fracture toughness of ceramic materials make them very susceptible to damage during machining, which puts high demands on the clamping link during machining. At present, in the finish machining such as grinding and polishing of ceramic surfaces (especially small-sized and thin-walled workpieces), the existing clamping method has obvious limitations, and positioning accuracy, efficiency and yield are difficult to be considered. Firstly, although a single ceramic workpiece precision clamp (such as a precision spring chuck and a vacuum chuck) can realize higher single-piece positioning precision, only one or a small number of workpieces can be clamped at a time, the production efficiency is low, and the requirement of mass production is difficult to meet. For example, chinese patent publication No. CN116638210a, the name of the invention is a ceramic cutting device that facilitates clamping, comprising a base, wherein a clamping adjusting mechanism is fixedly connected in the middle of the top of the base, which can clamp only one workpiece at a time. On the other hand, the concentrated stress generated by clamping the metal chuck is easy to cause microcracks or even overall cracks on the surface or edge of the brittle ceramic, so that workpieces are scrapped, and the yield is difficult to control. Secondly, although mechanical clamping injury can be avoided and simultaneous processing of multiple pieces can be realized by adopting a bonding or paraffin fixing method, a series of new problems of complicated process flow (coating, curing, processing, dissolving and cleaning), long production period, high energy consumption, chemical pollution risk and the like are brought. In addition, the adhesive may soften during processing heat generation, resulting in problems such as a decrease in positioning accuracy. Furthermore, by manually arranging the workpieces and matching with the cushion blocks and the screws for positioning, although certain batch clamping can be realized, the positioning accuracy is seriously dependent on experience of operators, the accumulated error is large, and the consistency of batch workpieces cannot be ensured. In conclusion, the existing ceramic workpiece clamping device is often compatible with positioning accuracy and efficiency, batch production and workpiece protection. Along with the increasing demand of high-end equipment for ceramic parts, development of a special device capable of simultaneously realizing high-precision batch clamping and easy operation has become an urgent need for promoting the upgrading of related industrial technologies. Disclosure of Invention The invention aims to provide a multi-station clamping device for processing ceramic surfaces, which is convenient to clamp, can realize high-precision batch clamping of cylindrical ceramic workpieces, and can effectively improve the problems of workpiece scrapping caused by microcrack or even integral cracking caused by brittle ceramic surfaces or edges caused by clamping. The technical scheme of the invention is as follows: A multistation clamping device for processing ceramic surfaces comprises: the base is fixedly provided with a bottom plate, and the upper surface of the bottom plate is a horizontal supporting surface; A plurality of clamping units distributed side by side, comprising: The vertical plate is fixed on the supporting surface; The wedge block assembly comprises a fixed wedge block fixed on the supporting surface and a movable wedge block positioned between the fixed wedge block and the vertical plate, wherein two opposite side surfaces of the fixed wedge block and the movable wedge block are mutually matched inclined wedge surfaces, and a strip-shaped hole penetrating through the upper surface and the lower surface of the movable wedge block is formed in the movable wedge block; the clamping bolt penetrates through the strip-shaped hole and is connected into the screw hole of the supporting surface; The movable clamping plate is fixed on one side of the movable wedge block, which faces the vertical plate, the side face of the vertical plate, which faces the movable clamping plate, is a vertical reference surface, the vertical reference surfaces of the clamping units are parallel, and the vertical plate