Provided is a tool state detection system capable of improving usability. A tool state detection system that detects a state of a tool attached to a machining device includes: a detection device which is formed separately from a tool holder that holds the tool and is detachably attached to the tool holder, the detection device being configured to detect the state of the tool and output measurement data; and a data analysis device which provided to be communicable with the detection device, the data analysis device being configured to analyze the measurement data from the detection device. As a result, usability for a user is improved since the detection device can be formed separately from the tool holder and be detachably attached to the tool holder.

Methods, systems, and apparatus, including medium-encoded computer program products, for computer aided design and manufacture of physical structures using subtractive manufacturing systems and techniques include, in one aspect, a method including obtaining information regarding a geometry of a part to be machined by a computer-controlled manufacturing system from a workpiece; based on the information regarding the geometry, identifying machine components to be used by the computer-controlled manufacturing system during machining the part; determining a position for the machining of the part with respect to at least one of the machine components, to even out wear on the machine components, based on data indicating previous positions, movements and wear of components associated with the computer-controlled manufacturing system; and providing instructions usable by the computer-controlled manufacturing system, wherein the instructions are configured to cause the computer-controlled manufacturing system to use the position for the machining.

A machine tool includes a tool and a workpiece machined by the tool, and sensors configured to detect a position of the tool and/or the tool holder holding the tool in a spatially and time resolved manner A method for offline and/or online identification of a state of the machine tool includes: a) detecting or providing positions p.sub.i of the tool and/or of the tool holder at a series of points in time i, i=1 . . . n; b) determining for the series of points in time i a series of position changes Δm.sub.i according to the formula Δm.sub.i=p.sub.i/p.sub.i-1 and a series of speed changes Δv.sub.i according to the formula Δv.sub.i=v.sub.i/v.sub.i-1 with

[00001]$v_i=\frac{P_i-P_{i-1}}{t_i-t_{i-1}}$

and formula

[00002]$v_{i-1}=\frac{P_{i-1}-P_{i-2}}{t_{i-1}-t_{i-2}};$

c) identifying the state of the tool, the tool holder, the machine tool and/or the workpiece machined in the machine tool based on the position changes Δm.sub.i and the speed changes Δv.sub.i.

A method for detecting and compensating CNC tools being implemented in an electronic device, receives from a detector first parameters and second parameters in respect of a first tool. Such first parameters include at least one of service life, blade break information, and blade chipping information of the first tool, and such second parameters include at least one of length extension information, length wear information, radial wear information, and blade thickness wear information of the first tool. Based on the first parameters, instructions to process the workpiece are transmitted or not. Upon receiving the second parameters, instructions to adjust operation of the first tool are transmitted, to compensate for deterioration in normal use.

A machine tool machining dimensions prediction device (100) includes: a data collector (10) to acquire driving state information of a machine tool; a feature amount extractor (211) to extract a feature amount from the driving state information; a data analyzer (311) to analyze the extracted feature amount; and a machining quality prediction model generator (312) to generate, from the analyzed information, a prediction model of a machining dimension of a workpiece. The machine tool machining dimensions prediction device (100) applies the feature amount and the driving state information to the prediction model during machining of the workpiece to predict a machining quality and refers to a machining dimension quality regulation to determine whether the machining quality satisfies a standard.

Provided herein are a numerical control mechanism, a tool replacement equipment and a tool replacement method, which are used for disassembling a first tool and preparing a second tool according to a tool replacement task and replacing the first tool with a second tool, so as to realize automatic tool replacement, reduce manpower and machine waiting time for the tool replacement, and improve the tool replacement efficiency.

A system for improving drill bit performance, comprising processors and memory storing instructions to obtain a wear report for a drill bit, wherein the wear report includes wear characteristics of the drill bit and drill operating parameters under which the drill bit was used; compare the wear characteristics of the drill bit to a threshold for acceptable drill bit wear; and adjust drill operating parameters based on the wear characteristics of the drill bit. The instructions to obtain the wear report for the drill bit include instructions to analyze images of the drill bit to identify wear characteristics; identify wear patterns based on the wear characteristics of the drill bit; identify probable drilling conditions based on the wear patterns; and generate the wear report for the drill bit based on the images of the drill bit, the wear characteristics of the drill bit, and the probable drilling conditions.

A production device having wear and/or manipulation identification is provided. The production device is produced at least for the most part by additive production methods and has a surface. The production device may be constructed as an assembly device, in particular workpiece coordination device, shaping tool or auxiliary technical production device. According to the present disclosure there is provided at least in a region of the surface at least one signal layer which, in an initial state of the production device, is arranged at a predetermined depth below a surface termination layer of the surface and is covered externally by the surface termination layer of the surface. In this instance, the signal layer differs in a visually perceptible manner from the surface termination layer.

When the number of machining operations using a tool attached to a machining head of a machine tool has reached a predetermined number of machining operations for replacement, without a determination unit determining that an abnormality has occurred in the tool, then the tool is replaced with a replacement tool that is held in a tool magazine. Further, the tool removed from the machining head is returned to the tool magazine and stored as an auxiliary replacement tool. Then, if the determination unit determines that an abnormality has occurred in the replacement tool, the replacement tool is replaced with the auxiliary replacement tool.

The invention relates to a machine tool, hi particular a lathe grinding machine, comprising a tool spindle, a spindle motor and a tool clamped in a covet, with which tool a workpiece may be machined which may be moved in several axes relative to the tool, and comprising a control device for the tool spindle which controls the spindle motor. A spindle load detection device (24) which is connected with the control device (20) is provided and the control device (20) compares the output signal (26) of the spindle load detection device (24) with a predetermined threshold value (50), said threshold value (50) being below, in particular at least 20% below, the breaking load (54) of the tool (18). The control device (20) turns off the spindle motor (14) when the output signal (26) of the spindle load detection device (24) exceeds the threshold value (50).