Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B33/00—Honing machines or devices; Accessories therefor
  • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B33/00—Honing machines or devices; Accessories therefor
  • B24B33/08—Honing tools
  • B24B33/083—Honing tools with different sets of honing stones
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B33/00—Honing machines or devices; Accessories therefor
  • B24B33/08—Honing tools
  • B24B33/084—Honing tools having honing stones at the end of bars

Definitions

• the invention relates to a honing tool for machining a bore in a workpiece according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a honing tool.
• Honing is a machining process with geometrically undefined cutting edges, which is carried out using an expandable honing tool.
• the honing process uses bonded cutting grains with constant surface contact between the abrasive working surface of the honing tool and the bore surface.
• the cutting grains are bound in a bond system (also referred to as "bond") and, together with the bond system, form an abrasive cutting layer.
• the bond system's function is to hold the bonded cutting grains in place until they are blunted by the cutting process. They are then released so that new, still sharp-edged cutting grains can engage the workpiece (self-sharpening effect).
• the honing tool In a typical honing operation, the honing tool is moved back and forth within the bore to be machined in the axial direction of the bore and simultaneously rotated at a suitable speed to generate a rotary motion superimposed on the reciprocating motion.
• the cutting media attached to the honing tool are pressed against the inner surface to be machined via the infeed system with a pressure force acting radially to the tool axis. As the resulting material is removed, the effective outer diameter of the honing tool is gradually increased via the infeed system.
• Honing typically creates a cross-grinding pattern typical of honing on the inner surface, with intersecting machining marks, also known as “honing marks.”
• a honing tool of the type considered in this application is a honing tool with double infeed or double expansion, i.e. a honing tool that has two independent It has cutting groups that can be adjusted to each other. This allows multi-stage machining processes to be carried out, sometimes without changing tools.
• the DE 10 2019 201 465 A1 discloses honing tools with double infeed, which have two independently adjustable cutting groups on their tool body.
• a first cutting group has a plurality of radially adjustable first cutting material carriers, which cover a circumferential angular range of at least 20° on a radial outer side and carry on the outer side a single circumferentially wide first cutting means or a plurality of narrow first cutting means arranged at a mutual distance from one another.
• a second cutting group has a plurality of radially adjustable second cutting means carriers, each of which carries on its radial outer side a single narrow second cutting means in the form of a cutting bar. All cutting means of the first and second cutting groups are arranged in an axially short cutting area, which has a length measured in the axial direction that is significantly smaller than an effective outer diameter of the cutting groups when the cutting means are fully retracted.
• Angular distances can be on the order of approximately 1° or more, e.g., in the range of 0.8° to 3°.
• Classic angular pitch refers to an angular pitch in which the guide openings are evenly distributed over the circumference of the tool body, so that there are, for example, twelve guide openings each spaced at 30°, eight guide openings each spaced at 45°, or six guide openings each spaced at 60°.
• the length LSB of the cutting area here is between 80% and 95% of the outer diameter AD of the honing tool.
• the outer diameter is in the order of 80 mm, but it can be in the range from 60 mm to 90 mm, or possibly higher or lower.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Geometry (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=84439747

Family Applications (1)

Country Status (9)

Families Citing this family (1)

Family Cites Families (4)

• 2021
  • 2021-11-22 DE DE102021213090.9A patent/DE102021213090A1/de active Pending
• 2022
  • 2022-11-17 EP EP22818666.4A patent/EP4436747B1/de active Active
  • 2022-11-17 WO PCT/EP2022/082268 patent/WO2023089025A1/de not_active Ceased
  • 2022-11-17 HU HUE22818666A patent/HUE073605T2/hu unknown
  • 2022-11-17 CN CN202280077538.5A patent/CN118284492A/zh active Pending
  • 2022-11-17 PL PL22818666.4T patent/PL4436747T3/pl unknown
  • 2022-11-17 MX MX2024006125A patent/MX2024006125A/es unknown
  • 2022-11-17 US US18/712,437 patent/US20250010423A1/en active Pending
  • 2022-11-17 ES ES22818666T patent/ES3052183T3/es active Active

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