A transmission structure of a woodworking lathe contains: a case, a driven gear, a first gear set, a second gear set, and an adjustment lever. The case includes a transmission shaft, a variable speed shaft, and a driven shaft. The driven gear is fixed on the variable speed shaft and meshes with the transmission gear. The first gear set contains a first gear and a third gear which is coaxial with the first gear. Diameters of the first gear and the third gear are different. The second gear set is disposed on the variable speed shaft and contains a second gear and a fourth gear, a diameter of the second gear corresponds to a diameter of the first gear, and a diameter of the fourth gear corresponds to a diameter of the third gear. The adjustment lever is defined between the second gear and the fourth gear.

A central axis adjustment structure of a tailstock of a woodworking lathe is disclosed. The tailstock has a circular hole therein, a front opening and a rear opening at front and rear ends of the tailstock. An end surface of the front opening has at least one screw hole. A guide rod is disposed in the circular hole, and has a rear end extending out of the rear opening. A collar is fitted onto an axial connecting shaft that is inserted in the circular hole. The guide rod is insertedly connected to a rear end of the axial connecting shaft. The collar has at least one perforation corresponding to the screw hole. At least one bolt is inserted through the perforation and screwed to the screw hole so that the collar is locked to the front end of the tailstock. A first annular gap is defined between the guide rod and the rear opening of the tailstock. A second annular gap is defined between the axial connecting shaft and the front opening of the tailstock. A third annular gap is defined between the bolt and the perforation of the collar.

A working control module of a woodworking tenoning machine is configured to work a wood material in a desired tenoning shape by using a human machine interface (HMI). The working control module contains: a tool selection module, a tenoning shape selection module, a model calculation module, a three-dimensional (3D) drawing module, a working path module, a feeding module, a working module, and a material returning module. Thereby, the user is capable of selecting the desired tenon shape, inputting the at least one characteristic variable of the desired tenon shape to draw, view or amend the 3D model by using the HMI of the working control module. After confirming the 3D model, the wood material is worked in the desired tenon shape automatically, thus enhancing working efficiency and working accuracy.

A working control module of a woodworking tenoning machine is configured to work a wood material in a desired tenoning shape by using a human machine interface (HMI). The working control module contains: a tool selection module, a tenoning shape selection module, a model calculation module, a three-dimensional (3D) drawing module, a working path module, a feeding module, a working module, and a material returning module. Thereby, the user is capable of selecting the desired tenon shape, inputting the at least one characteristic variable of the desired tenon shape to draw, view or amend the 3D model by using the HMI of the working control module. After confirming the 3D model, the wood material is worked in the desired tenon shape automatically, thus enhancing working efficiency and working accuracy.

A central axis adjustment structure of a tailstock of a woodworking lathe is disclosed. The tailstock has a circular hole therein, a front opening and a rear opening at front and rear ends of the tailstock. An end surface of the front opening has at least one screw hole. A guide rod is disposed in the circular hole, and has a rear end extending out of the rear opening. A collar is fitted onto an axial connecting shaft that is inserted in the circular hole. The guide rod is insertedly connected to a rear end of the axial connecting shaft. The collar has at least one perforation corresponding to the screw hole. At least one bolt is inserted through the perforation and screwed to the screw hole so that the collar is locked to the front end of the tailstock. A first annular gap is defined between the guide rod and the rear opening of the tailstock. A second annular gap is defined between the axial connecting shaft and the front opening of the tailstock. A third annular gap is defined between the bolt and the perforation of the collar.

A handheld wood thread cutting tool with an elongated shank formed with a planar surface and including a first end and a second end with a length substantially longer than its width. The first end has a first wood thread cutting edge aligned substantially in parallel relative to a first vertical plane perpendicular to the planar surface and passing through the length of the elongated shank from the first end to the second end. The second end has a second wood thread cutting edge aligned substantially parallel to a second vertical plane perpendicular to the planar surface and running through the width of the elongated shank from a first side wall to a second side wall. A ball handle is affixed between the first and the second end.

A tool, system, and method for shaping a wooden workpiece. The system includes a lathe, a toolrest, and a woodturning tool for removing material from the workpiece. The tool includes a handle with a shaft extending longitudinally outwardly therefrom. A cutter is provided on an end of the shaft. The shaft includes a longitudinally-extending bottom surface and a longitudinally-extending side surface. The side surface extends laterally outwardly from the bottom surface and at an obtuse angle relative thereto. Two contact points provided on one of the bottom and side surfaces are brought into contact with the toolrest on the lathe to steady the shaft and use the cutter on the workpiece. The orientation of the cutter is changed between a first position and second position depending on which of the bottom surface or side surface contacts the toolrest.

A turning assembly used to form at least a portion of a turned object comprises a plurality of prism block segments. The outer face includes a width that is greater than a width of the inner face. A radial central axis extends between and is perpendicular to the outer face and the inner face and has a length greater than the width of the inner face. A first set of block segments is arranged in a side-to-side orientation to form a first turning blank with the outer faces generally forming a regular polygon. A second set of block segments is arranged in a side-to-side orientation to form a second turning blank with the outer faces generally forming a regular polygon. The first turning blank is coupled to the second turning blank to form a coupled turning blank that is formed into the portion of the turned object.

A working control module of a woodworking tenoning machine is configured to work a wood material in a desired tenoning shape by using a human machine interface (HMI). The working control module contains: a tool selection module, a tenoning shape selection module, a model calculation module, a three-dimensional (3D) drawing module, a working path module, a feeding module, a working module, and a material returning module. Thereby, the user is capable of selecting the desired tenon shape, inputting the at least one characteristic variable of the desired tenon shape to draw, view or amend the 3D model by using the HMI of the working control module. After confirming the 3D model, the wood material is worked in the desired tenon shape automatically, thus enhancing working efficiency and working accuracy.

A working control module of a woodworking tenoning machine is configured to work a wood material in a desired tenoning shape by using a human machine interface (HMI). The working control module contains: a tool selection module, a tenoning shape selection module, a model calculation module, a three-dimensional (3D) drawing module, a working path module, a feeding module, a working module, and a material returning module. Thereby, the user is capable of selecting the desired tenon shape, inputting the at least one characteristic variable of the desired tenon shape to draw, view or amend the 3D model by using the HMI of the working control module. After confirming the 3D model, the wood material is worked in the desired tenon shape automatically, thus enhancing working efficiency and working accuracy.