Pull stud

• US 4,773,800 A
• Filed: 01/08/1987
• Issued: 09/27/1988
• Est. Priority Date: 01/09/1987
• Status: Expired due to Term

• Current Assignee: Yamazaki Mazak Corporation
• Original Assignee: Yamazaki Mazak Corporation
• Inventors: Furuhashi, Ryoichi, Nagase, Shinsuke
• Primary Examiner(s): Briggs, William R.
• Application Number:
  US07/001,465
• Time in Patent Office: 628 Days
• Field of Search: 409/233, 409/234, 409/80, 29/568, 279/1 TS, 40/913, 408/16, 408/3, 408/239 A, 408/239 R
• US Class Current: 409/234
• CPC Class Codes: B23B 2231/10 Chucks having data storage chips
• CPC Class Codes: B23B 31/006 Conical shanks of tools
• CPC Class Codes: B23Q 3/15546 Devices for recognizing tools in a storage device, e.g. coding devices
• CPC Class Codes: G05B 19/128 the workpiece itself serves as a record carrier, e.g. by its form, by marks or codes on it
• CPC Class Codes: Y10S 279/90 Adapted for automatic tool changer
• CPC Class Codes: Y10S 40/913 Tool identification
• CPC Class Codes: Y10T 279/21 with measuring, indicating or control means
• CPC Class Codes: Y10T 409/30952 with cutter holder
• CPC Class Codes: Y10T 483/134 Identifying information on tool or tool holder

Abstract

A pull stud detachably attached to a tool holder includes a tool data storing element for storing tool data. The arrangement being such that tool data of each tool can be stored in the tool data storing element within the pull stud attached to the tool holder holding the tool.

Claims

1. An apparatus which allows a tool to be removed from a tool magazine and which stores tool data for access by an external read-write device comprising:

a pull stud having a hole at a center portion thereof which extends from a first end thereof to second end thereof and is detachably mounted at said first end thereof to said holder; and

means disposed within said hole for storing tool data said tool data storing means including;

memory means for storing said data, and

input-output means for writing data and reading data from said memory means.

2. An apparatus according to claim 1 wherein said input-output means is disposed along said second end of said pull stud.

3. An apparatus according to claim 1 wherein said tool data storing means is disposed along the circumference of said hole.

4. The pull stud as claimed in claim 1, wherein said input-output means is of a noncontact type.

5. The pull stud as claimed in claim 1, wherein said input-output means is of a noncontact type.