Abrégé

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.

Classes IPC  ?

• B27C 7/04 - Dispositifs pour centrer ou monter la pièce
• B23B 23/00 - ContrepointesPointes à centrer

Abrégé

A speed change auxiliary device of a lathe is provided. A side chamber of the lathe is provided with a shaft seat and a bottom shaft seat at the top and bottom thereof. An auxiliary device is provided between the shaft seat and the bottom shaft seat. The auxiliary device includes a shaft. A spring, an eccentric block, an engaging member, a positioning nut, a rotary sleeve and a fixing block are fitted on the shaft. The rotary sleeve includes a handle. Two sides of an inner circumferential surface of the rotary sleeve have protrusions. The protrusions each have an upright surface and an upper guide bevel at two sides thereof. The fixing block is disposed on the bottom shaft seat. Two sides of a circumferential surface of the fixing block have recesses. The recesses each have a stop surface and a lower guide bevel at two sides thereof.

Classes IPC  ?

• F16H 7/14 - Moyens pour faire varier la tension des courroies, des câbles ou des chaînes par réglage de la position de l'axe d'une poulie d'une poulie d'entraînement ou d'une poulie entraînée
• B23Q 5/14 - Entraînement mécanique avec des moyens permettant de faire varier les rapports de vitesses de façon discontinue
• B23Q 5/20 - Réglage ou arrêt des broches de travail dans une position prédéterminée
• B27C 7/02 - Tours pour le tournage à la main
• B23Q 5/12 - Entraînement mécanique avec des moyens permettant de faire varier les rapports de vitesses

Abrégé

A motor fixing structure of an engraving machine is provided. A lifting platform has a through hole, at least three protruding walls spaced and arranged around the through hole, and notches each defined between every two of the protruding walls. The outer side of each notch is provided with a clamping block. The lifting platform has a radial guide hole corresponding in position to the clamping block. The clamping block has a vertical aperture. The bottom surface of the lifting platform has an adjustment seat with a peroration. The protruding walls are fitted with a turning disc. The turning disc has at least three oblique curved holes. The turning disc is pivotally connected with a shaft. A drive rod is screwed to the shaft. A quick release assembly is inserted in the corresponding oblique curved holes, the aperture and the guide hole for tightening or loosening the clamping block.

Classes IPC  ?

• B44B 1/06 - Accessoires
• B44B 3/06 - Accessoires, p. ex. supports d'outils ou d'ouvrages
• B44B 1/02 - Machines ou appareils d'artistes équipés d'outils ou de supports de l'ouvrage, susceptibles d'être déplacés selon les trois dimensions pour produire individuellement des formes ou sculptures pour faire des reproductions à trois dimensions

Abrégé

A lifting structure of an engraving machine is provided. A lifting platform of the engraving machine has four pivot holes each provided with a screw seat, and is mounted with a shaft seat having a drive gear. A sprocket is provided under each screw seat. A driven gear is provided under one of the sprockets to mesh with the drive gear. The sprockets of the pivot holes are connected by a chain. The screw seat includes an upper screw sleeve, a lower screw sleeve, an upper thrust bearing, a lower thrust bearing, and a spring. The lower screw sleeve is rotatable in the pivot hole through the upper thrust bearing and the lower thrust bearing. The spring is located between the upper screw sleeve and the lower screw sleeve. Two screws pass through the upper screw seat and are screwed to the lower screw seat, respectively.

Classes IPC  ?

• B44B 3/06 - Accessoires, p. ex. supports d'outils ou d'ouvrages
• B44B 1/06 - Accessoires

Abrégé

A working height adjustment device of a processing machine includes a retaining frame, a slide seat, and a lever having a connecting rod pivoted between the retaining frame and the slide seat. An adjustment seat of the slide seat has an accommodation hole. The accommodation hole is provided with an elastic member, a movable member, and an eccentric rod. The movable member has an engaging hole. The engaging hole has a diameter greater than that of a micro adjustment screw rod. The engaging hole has a toothed portion. Thereby, the eccentric rod is turned to push or release the movable member for the toothed portion of the engaging hole to engage with or disengage from a threaded section of the micro adjustment screw rod, such that the micro adjustment screw rod is tuned or the lever is pulled up and down to adjust the cutter seat quickly.

Classes IPC  ?

• B27C 1/14 - Autres parties constitutives ou accessoires
• F16B 37/08 - Écrous à largage rapide, p. ex. faits de plusieurs partiesÉcrous mobiles le long du boulon après basculement de l’écrou
• F16M 11/18 - Têtes des supports avec mécanisme déplaçant les appareils par rapport au banc
• B24B 41/02 - BâtisBancsChariots
• F16H 7/08 - Moyens pour faire varier la tension des courroies, des câbles ou des chaînes
• F16B 7/08 - Pattes d'attache pour tubes
• B23Q 16/00 - Équipement non prévu ailleurs pour mettre en position de façon précise l'outil ou la pièce à travailler
• F16H 7/14 - Moyens pour faire varier la tension des courroies, des câbles ou des chaînes par réglage de la position de l'axe d'une poulie d'une poulie d'entraînement ou d'une poulie entraînée

Abrégé

A working height adjustment device of a processing machine includes a slide seat mounted to a fixing frame seat. The slide seat is provided with an adjustment seat having a through hole. The through hole is inserted with a micro adjustment rod having a threaded section. The micro adjustment rod is pivotally connected with a rotatable handle. A control rod having a link rod is provided between the fixing frame seat and the slide seat. The adjustment seat has an accommodation hole which is provided with an elastic member, a movable member and a push knob. The movable member has an engaging hole. One side of the engaging hole is formed with a toothed portion. The threaded section of the micro adjustment rod passes through the engaging hole. One end of the movable member is inserted into the elastic member, and another end is connected with the push knob.

Classes IPC  ?

• B27C 1/14 - Autres parties constitutives ou accessoires
• B24B 7/28 - Machines ou dispositifs pour meuler les surfaces planes des pièces, y compris ceux pour le polissage des surfaces planes en verreAccessoires à cet effet caractérisés par le fait qu'ils sont spécialement étudiés en fonction des propriétés de la matière des objets non métalliques à meuler pour meuler le bois

Abrégé

A movement auxiliary device for a machine stand includes a foot stand. Two sides of the lower end of the foot stand are provided with first and second side seats having vertical rail grooves, respectively. A movable lever, a pivot seat and a lifting roller assembly are provided between the two rail grooves. The foot stand is provided with a support seat. A connecting board having a pedal is pivotally connected between the support seat and the pivot seat, which can be pivoted on the pivot seat. The movable lever is pivotally connected with a pneumatic cylinder to provide a buffering function for the lifting roller assembly and the machine stand. The pedal is controlled for the connecting board and the pivot seat to generate a link pivot, such that the lifting roller assembly is descended to the ground or ascended upward.

Classes IPC  ?

• F16M 13/00 - Autres supports ou appuis pour positionner les appareils ou les objetsMoyens pour maintenir en position les appareils ou objets tenus à la main
• F16M 11/42 - Appuis ou tréteaux en tant que supports pour appareils ou objets avec dispositions pour mouvoir le support

Abrégé

A woodworking lathe adjustment structure includes a base having an axial slide trough thereon, a head unit and a tail unit disposed on the base. An adjustment block is provided between the head unit/the tail unit and the slide trough. The adjustment block includes a groove, a space adjustment bolt, and an adjustment bolt. The groove has a compelling hole therein. The compelling hole has a threaded section and a non-threaded section therein. The space adjustment bolt is screwed to the threaded section. The adjustment block is secured to the bottom of the head unit/the tail unit by fixing bolts, respectively, and inserted in the slide trough. When the space adjustment bolt passes the non-threaded section of the compelling hole, the sides of the groove will be deformed outward and curvedly to offset a gap which is caused by wear and tear of the adjustment block and the slide trough.

Classes IPC  ?

• B23B 21/00 - Chariots de tourChariots transversauxChariots porte-outilsPièces similaires de n'importe quelles machines-outils
• B27C 7/00 - Machines à tourner le boisÉquipement de ces machines
• B23B 3/00 - Machines ou dispositifs à tourner d'utilisation générale, p. ex. tours parallèles à barres de chariotage et vis-mèreEnsembles de machines à tourner

Abrégé

A main shaft structure of a tool machine includes a base, a worktable, a motor fixing seat, a cutter seat, and a cutter wheel unit. The worktable is mounted on the base. The motor fixing seat is connected to one side of the base, and another side is connected with the cutter seat. Two ends of the cutter seat respectively have bearing recesses and first positioning portions close to the bearing recesses. The cutter wheel unit is coupled to the cutter seat. Two ends of the cutter wheel unit are provided with bearing seats which are placed into the bearing recesses. The bearing seats have second positioning portions to connect with the first positioning portions, so that the cutter wheel unit can be detached from the cutter seat quickly.

Classes IPC  ?

• A01B 3/00 - Charrues à socs fixes
• A01B 5/08 - Charrues réversibles
• A01B 5/14 - Charrues réversibles
• B24B 7/07 - Machines ou dispositifs pour meuler les surfaces planes des pièces, y compris ceux pour le polissage des surfaces planes en verreAccessoires à cet effet comportant une table porte-pièce fixe
• B27C 1/04 - Machines à raboter pour réduire l'épaisseur

Abrégé

An abrasive apparatus of a sander is provided. The abrasive apparatus is disposed above a worktable of the sander and includes a base and a lift unit. At least one abrasive wheel is provided in the base. The base has a top formed with at least one slot. The lift unit is disposed on the abrasive wheel to bring the abrasive wheel to move up so that an abrasive surface of the abrasive wheel passes through the slot of the base and protrudes from the base for the top of the base to sand the side of a workpiece. The cutting width of the sander can be extended to enhance the use of the sander, so the manufacturing process can be shortened to increase the production efficiency.

Classes IPC  ?

• B24B 41/00 - Éléments constitutifs des machines ou dispositifs à meuler, tels que bâtis, bancs, chariots ou poupées

Abrégé

A clutch device for a roller sand for controlling reciprocating movement of a roller includes a belt wheel, a connecting shaft and a adjusting button. The roller sander consists of a base, a motor set, a roller set and a linking device. The belt wheel is pivotally connected with the connecting shaft, mounted around by a belt that is also mounted around a belt wheel of a shaft of the motor set. In addition, the belt wheel of the clutch device is provided with plural fixing grooves at its front end. The adjusting button is connected with the connecting shaft, provided with a fixing bar fitting in a slot in an annular outer surface of said connecting shaft. Then the adjusting button is pushed in or pulled out to let the roller reciprocate or not. Therefore, two operating ways are optional for the roller sander.

Classes IPC  ?

• B24B 7/00 - Machines ou dispositifs pour meuler les surfaces planes des pièces, y compris ceux pour le polissage des surfaces planes en verreAccessoires à cet effet