A depth gauge device including a body extending a central longitudinal axis and including a channel and a light-passing hole, the light passing hole open to the channel, a light source mounted in the body for generating a light beam, the light beam passing through the light-passing hole toward a surface of a drill-bit extending through the channel, the light beam forming an incident light beam when reflected away from the drill-bit surface, an image sensor mounted in the body for sensing the incident light beam and generating a plurality of successive images of the drill-bit surface to detect variations in the position of the drill-bit moving through the channel and an clamp coupled to the body, the clamp including a plurality of adjustable arms configured to clamp the device to a protection sleeve.

An electric device, including a body, a working module, a control module, and a radar, where the radar includes: an antenna unit, configured to transmit and receive an electromagnetic wave signal; a transmitting unit, configured to generate an electromagnetic wave signal transmitted by the antenna unit; a receiving unit, configured to process an electromagnetic wave signal received by the antenna unit; and a control unit, connected to the transmitting unit and the receiving unit; where the antenna unit, the transmitting unit, the receiving unit, and the control unit are integrated in one chip. The described chip-type radar is small in size and low in cost, the detection accuracy is improved through the combination of multiple radars, and the influence on appearance design is minimized.

A sensor module for a tool holder for a cutting tool, such that when the sensor module is arranged to the tool holder having a cutting tool connected thereto, an axial portion of the cutting tool is positionable in a predefined rest position with respect to the sensor module. The sensor module includes at least one position sensor, wherein, when the sensor module is arranged to the tool holder having a cutting tool connected thereto, the position sensor is located radially spaced from the axial portion of the cutting tool for measuring deflection of the cutting tool with respect to the rest position. The disclosure further relates to a tool holder, a cutting tool, a cutting assembly, and a method for measuring deflection of a cutting tool.

Disclosed is an automatic hole-processing method with self-adapting adjustment of processing parameters, including the following steps: performing tool feeding, detecting whether the rotate speed changes or not, if changes, judging the type of the processing material according to the new rotate speed after stabilization (if not, the tool feeding is continued); feeding the tool according to the processing parameters suitable for the material, detecting whether the rotate speed changes or not, if changes, judging whether the hole processing has been completed or not according to the new rotate speed after stabilization (if not, the tool feeding is continued), if completed, retracting the tool with the set parameters (if not, judging the type of the processing material according to the new rotate speed after stabilization, and repeating the above steps), completing the hole processing. During the hole processing in the present disclosure, there is no need to know the type of workpiece material of each processing hole in advance and to set processing parameters for each material respectively; there is no need for axial tool setting, processing parameters can be changed automatically after the tool contacts the workpiece; there is no need to know the total thickness of each processing hole material in advance and to set the feed stokes respectively, after cutting through the workpiece, the tool automatically identifies and begins to retract.

Disclosed is an automatic hole-processing method with self-adapting adjustment of processing parameters, including the following steps: performing tool feeding, detecting whether the rotate speed changes or not, if changes, judging the type of the processing material according to the new rotate speed after stabilization (if not, the tool feeding is continued); feeding the tool according to the processing parameters suitable for the material, detecting whether the rotate speed changes or not, if changes, judging whether the hole processing has been completed or not according to the new rotate speed after stabilization (if not, the tool feeding is continued), if completed, retracting the tool with the set parameters (if not, judging the type of the processing material according to the new rotate speed after stabilization, and repeating the above steps), completing the hole processing. During the hole processing in the present disclosure, there is no need to know the type of workpiece material of each processing hole in advance and to set processing parameters for each material respectively; there is no need for axial tool setting, processing parameters can be changed automatically after the tool contacts the workpiece; there is no need to know the total thickness of each processing hole material in advance and to set the feed stokes respectively, after cutting through the workpiece, the tool automatically identifies and begins to retract.

A drilling system is provided for drilling a workpiece. The drilling system includes a pattern generator configured to apply a pattern on a workpiece surface of the workpiece at a reference location relative to a target drilling location. The drilling system includes a drilling end effector, which includes a chuck configured to hold a drilling tool. The drilling end effector also includes a nosepiece configured to at least partially surround the drilling tool when the drilling tool is held by the chuck. The nosepiece includes an end portion that is configured to be held on the workpiece surface of the workpiece. The drilling end effector also includes a camera configured to acquire an image of an area of the workpiece surface that includes the pattern. The image acquired by the camera indicates whether the end portion of the nosepiece is aligned with the pattern on the workpiece surface.

A drilling system is provided for drilling a workpiece. The drilling system includes a pattern generator configured to apply a pattern on a workpiece surface of the workpiece at a reference location relative to a target drilling location. The drilling system includes a drilling end effector, which includes a chuck configured to hold a drilling tool. The drilling end effector also includes a nosepiece configured to at least partially surround the drilling tool when the drilling tool is held by the chuck. The nosepiece includes an end portion that is configured to be held on the workpiece surface of the workpiece. The drilling end effector also includes a camera configured to acquire an image of an area of the workpiece surface that includes the pattern. The image acquired by the camera indicates whether the end portion of the nosepiece is aligned with the pattern on the workpiece surface.

The present invention relates to a needle-guiding device (2) for a specified drilling resistance measurement unit, a drilling resistance measurement unit itself for investigating the nature of wood, and to a method for investigating the nature of wood. The needle-guiding device (2) for the drilling resistance measurement unit is designed to guide the drill needle (1) and to be operatively coupled to a drive of the drilling resistance measurement unit. The needle-guiding device (2) has a supporting device and a needle holder (4). The needle holder (4) has a drill chuck which is designed to receive the specified drill needle (1), and the supporting device extends in the longitudinal direction of the specified drill needle (1). According to the invention, the supporting device comprises at least one scissor-type extending grid device (8) having a scissor-type extending grid (8′) consisting of bars (81) or has a drive device having two interacting force transmission elements which are arranged parallel next to each other.

The present invention relates to a needle-guiding device (2) for a specified drilling resistance measurement unit, a drilling resistance measurement unit itself for investigating the nature of wood, and to a method for investigating the nature of wood. The needle-guiding device (2) for the drilling resistance measurement unit is designed to guide the drill needle (1) and to be operatively coupled to a drive of the drilling resistance measurement unit. The needle-guiding device (2) has a supporting device and a needle holder (4). The needle holder (4) has a drill chuck which is designed to receive the specified drill needle (1), and the supporting device extends in the longitudinal direction of the specified drill needle (1). According to the invention, the supporting device comprises at least one scissor-type extending grid device (8) having a scissor-type extending grid (8′) consisting of bars (81) or has a drive device having two interacting force transmission elements which are arranged parallel next to each other.

The invention relates to a tool holder (2) for connecting a machining tool (4) having a depth-control stop (3) to a working spindle of a machine tool, having a spindle-side shaft part (6) and a receiving part (7) which supports the machining tool (4) and is connected in a rotationally fixed manner to the shaft part (6). The receiving part (7) is axially displaceable in the tool feed direction via a compression spring arrangement (21), that is supported on the shaft part (6), counter to a fixed stop (17a) on the shaft part (6) and can be displaced away from the fixed stop (17a) on the shaft part (6) during the impact of the depth stop (3) on a workpiece against the spring force of the compression spring device (21).