Tool magazine
AssigneeDn Solutions Co., Ltd.
InventorSeonghoon Jeong
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a tool magazine of a machine tool such as a moving column-type machining center, in which a magazine unit is installed on a saddle, a tool accommodated in a gripper part of the magazine unit is loaded or unloaded in a direction perpendicular to a tool axis, and a gripping part of a change arm directly grips a flange portion of the tool at the time of changing the tools by means of a tool changing part movably installed on the saddle and a tool changing part transfer part configured to move the tool changing part independently of a column, thereby reducing tool change time, improving productivity, minimizing a collision or mechanical interference, and improving stability and reliability in the medium-sized or large-sized machine tool having a length in a width direction.
Claims10
A tool magazine of a machine tool, the tool magazine comprising:
- a magazine unit having a plurality of gripper parts configured to accommodate tools to supply the tools to a spindle, each of the gripper parts being configured to store a respective one of the tools, and the magazine unit being installed on a saddle such that the magazine unit moves together with the saddle when the saddle moves;
- and
- a tool changing part movably installed on the saddle to replace a tool mounted on a spindle with a tool accommodated in a respective one of the gripper parts,
- wherein,
- each of the tools is loaded or unloaded to/from a respective one of the gripper parts in a direction perpendicular to an axis of each of the tools,
- the tool changing part comprises a change arm having grips and being configured to grip the tool accommodated in the respective one of the gripper parts or the tool mounted on the spindle,
- the grips of the change arm are configured to grip a flange portion of the tool accommodated in the respective one of the gripper parts or the tool mounted on the spindle by a rectilinear movement of the tool changing part, and
- each of the gripper parts clamps a respective one of the tools accommodated in the respective one of the gripper parts while avoiding a flange portion of the respective one of the tools,
- the magazine unit further comprises:
- a main frame;
- a support frame configured to couple the main frame to the saddle;
- a motor installed on the main frame or the support frame and configured to generate a rotational power;
- a link installed to be movable along the main frame by the rotational power of the motor;
- and
- a release part installed on the main frame so as to be adjacent to a standby position and configured to unclamp a standby tool accommodated in a respective one of the gripper parts located at the standby position,
- the plurality of the gripper parts are mounted on the link and configured to accommodate the tools,
- each of the gripper parts comprises:
- a fixing part coupled to the link;
- a moving part installed on the fixing part so as to be movable upward and downward;
- a handle part configured to move the moving part upward or downward by an operation of the release part;
- two guide shafts installed on the moving part in parallel, facing each other with the handle part located in the middle of the two guide shafts;
- and
- a pressing part installed on the moving part and configured to press the accommodated tool to clamp the tool,
- each of the two guide shafts comprises an elastic member installed on a lower portion of a corresponding guide shaft and configured to press the moving part downward so that the moving part comes into contact with the fixing part when the respective one of the gripper parts clamps the tool.
Dependencies are inferred from the claim text.