896 results about "Headstock" patented technology

The invention relates to a welding device, in particular to a circular and longitudinal seam welder special for automatically welding multi-specification tank bodies. The speed-variable circular and longitudinal seam welder applied to the multi-specification tank bodies mainly comprises four parts, namely a bed body (1), a headstock (2), a beam mechanism (12) and a tailstock (5). Compared with the prior art, the circular and longitudinal seam welder has the advantages of adapting to the change of the tank body diameter range of phi300 to 1,400mm and welding linear speed range of 200 to 1,200mm/min, realizing edge sealing and dual circular and longitudinal seam welding of the tank bodies, along with multiple functions, compact structure, convenient operation, high stability and low production cost.

The invention relates to a welding fixture of a main chassis, which comprises a pedestal, a plurality of bearing blocks used for bearing welded workpieces and fixedly arranged on the pedestal, and a clamping device arranged on the pedestal with a part propped up against the workpieces to be welded. The clamping device comprises a headstock fixing seat positioned at the front part of the pedestal; a second workpiece table is fixedly arranged at the rear part of the pedestal; and a first workpiece table is also arranged between the headstock fixing seat and the second workpiece table. The welding fixture can rapidly position and fix each component to be welded, thereby improving the accuracy of welding positions, and further improving processing quality; in addition, the invention allows the multi-step welding during the one-time process of clamping, thereby improving processing efficiency.

The invention includes mainly a machine base, a carrier, a sliding control mechanism, a latch mechanism, a horizontal shifting mechanism, and a lifting mechanism. The FOUP (front-opening unified pod) is put on the carrier and latched by a locking plate of the latch at an accurate position. The carrier moves forwardly to tightly engage the FOUP to a gate on an access at a backboard of the machine base, and thus a cover of the FOUP is opened by a headstock gear at the back of the gate then carried backwardly away from the FOUP by the horizontal shifting mechanism and lowered by the lifting mechanism. Reversely, the cover is closed on the FOUP. As such, the cover is loaded and opened automatically, as well as in closed, which can be a part of automation and prevents wafers from contamination.

There is provided a precision roll turning lathe which can not only machine with high precision circumferential transverse grooves in the peripheral surface of a roll but can also machine with high precision longitudinal grooves in the peripheral surface. The precision roll turning lathe includes: a bed 10; a headstock 12, mounted on the bed 10, for rotating a roll-shaped workpiece while holding one end of the workpiece by means of a chuck, said headstock having an indexing axis (C axis) for performing circumferential indexing of the workpiece; a tail stock 14, mounted on the bed 10 and disposed opposite the headstock 12, for rotatably supporting the other end of the workpiece; a carriage 16 including a saddle 26 mounted on the bed 10 movably in the longitudinal direction (Z-axis direction) of the workpiece, and a table 28 mounted on the saddle 26 movably in a direction (X-axis direction) perpendicular to the longitudinal direction of the workpiece; a tool swivel 30 mounted on the table 28 and having an indexing axis (B axis); a tool post 33 mounted on the tool swivel 30 and having a plurality of cutting tools 36 attached thereto; and a fly cutter spindle device 34 mounted to the tool post 34 and having a cutter spindle for rotating a fly cutter 39.

The invention discloses a machine tool and a method for machining an over-long diameter ratio shaft exceeding the machine tool standard. The method comprises the following steps: firstly, leaving a section of chuck dock with an effective length respectively at two ends of a workpiece in advance, and drilling central holes on two end surfaces of the workpiece; secondly clamping one end of the workpiece on a chuck of a headstock, and supporting the other end by a finial on a tailstock; thirdly, coarsely turning the excircle of each section of the workpiece, and reversing the workpiece for turning when a knife rest feeds to the tail end of a knife rest lead rail; fourthly, finely turning the excircle of each section of the workpiece, and reversing and clamping the workpiece for turning when the knife rest feeds to the tail end of the knife rest lead rail; and finally, milling the chuck docks at the two ends and the chamfer angle on a boring lathe, a milling machine or other machine tools. The machine tool and the method for machining an over-long diameter ratio shaft exceeding the machine tool standard achieve the purpose of machining long-shaft parts over 15 m on a common machine tool for machining long shaft parts, thereby reducing the production cost.

The invention relates to a fully-automatic grinder comprising a base, a workbench, a headstock, a tailstock, a grinding wheel mechanism, a feeding and discharging manipulator, an automatic feeding mechanism, an automatic discharging mechanism and a numerical control device. A chuck and a centre are arranged on opposite faces of the headstock and the tailstock respectively and concentrically. The feeding and discharging manipulator comprises a taking pneumatic gripper, a taking cylinder, a putting pneumatic gripper, a putting cylinder, a guide slide fixing frame, a ball screw, a linear guide rail and a guide rail bracket, the taking pneumatic gripper, the taking cylinder, the putting pneumatic gripper and the putting cylinder are all mounted on the guide slide fixing frame, the taking pneumatic gripper and the putting pneumatic gripper are arranged at an included angle forward and backward and arranged parallelly leftward and rightward, and the guide slide fixing frame is in sliding fit with the ball screw and the linear guide rail. The grinder is high in automation degree, the whole process of feeding, discharging, clamping, machining, on-line measurement and the like of workpieces is completed automatically through the numerical control device, one-man multi-machine operation can be realized, production efficiency and production quality are improved, and labor intensity and production cost of workers are lowered.

An interchangeable cover covers the front viewable face of a body and/or a headstock of a guitar. The removable cover has an outline corresponding to an outline of the front face of the guitar body and/or headstock. Fasteners are provided along a periphery of each removable cover to attach each respective cover to the front viewable face of the body and or headstock of the guitar. The covers may have decorative apertures filled with a replaceable decorative insert, such as one or more pieces of mosaic inlay, a rastered image engraved on a rear portion thereof, multiple apertures with replaceable decorative inserts with different design features or a strip light embedded in the face of the body, with the cover being transparent over an area above the strip light. Preferably the periphery of each cover has a rounded and polished edge.

The invention relates to an insulator horizontal tensile testing machine, which comprises a working platform, wherein a rail is arranged on the working platform; the rail is provided with a headstock and a tailstock; the side wall of the working platform is provided with a plurality of through pin holes; the tailstock comprises a traveling mechanism, locking mechanisms and a fine adjustment mechanism, and is provided with a travel switch; the traveling mechanism comprises a driving motor, and an output end of the driving motor drives a pulley block through a middle transmission mechanism; the locking mechanisms are divided into two groups and are symmetrically arranged on two sides of the tailstock, each group of the locking mechanisms comprises a locking motor, an output end of the locking motor is connected with a transverse screw rod, a sliding block provided with a plug pin is inserted on the screw rod, and the position of the plug pin corresponds to the through pin holes; and the fine adjustment mechanism comprises a fine adjustment motor, an output end of the fine adjustment motor is connected with a rotating wheel, a longitudinally arranged screw rod is inserted on the rotating wheel, and the front end of the screw rod is connected with a tailstock clamp. The insulator horizontal tensile testing machine is also provided with a loading cylinder which is controlled by a remote measurement and control system. The insulator horizontal tensile testing machine adopts the movable tailstock, and has macro-movements, positioning and micro-adjustments so that the distance between the headstock and the tailstock on the working platform is convenient to adjust to adapt to tensile tests of insulators with different lengths.

Cases for the protection of stringed musical instruments having a bottom, a sidewall of a predetermined height extending from the bottom and a cover which is hingedly connected to the sidewall and which can be closed and secured with an appropriate fastener are described herein. The cases include a semi-rigid neck-brace having a height approximately the same as the inner height of the sidewall and being affixed to the bottom. The cases further include at least one retaining band that may be used to releasably secure the instrument neck to the neck-brace. Instrument damage may be prevented in the event of a sideways or backward fall, in at least part, because the neck-brace suspends the headstock between the bottom, sidewall and cover of the case and thereby prevents it from making contact.

The invention discloses a dynamic measuring device for worm helix errors and pitch errors, which comprises a headstock, a measuring table, a worm to be measured, a machine bed, a tailstock, an interference mirror, a compensator, a laser support, a computer, a laser head, a flat-V-shaped guide rail, a movable pyramid reflecting mirror, a measuring head, a circular grating system, an axial feed transmission assembly and the like. The circular grating system in the headstock and the worm to be measured are driven by the axial feed transmission assembly to realize synchronous rotation. When the worm to be measured rotates, the measuring table is dragged to move on the guide rail through the measuring head. The laser support supports the laser head, the interference mirror and the compensator. The movable pyramid reflecting mirror is fixedly arranged on the measuring table and moves along with the measuring table relative to the laser support. Since the entire instrument is provided with compensation units for temperature, environment and the like, the measuring accuracy is further improved. By using the measuring device, the automatic and dynamic high-accuracy measurement of the helix errors, pitch deviations and accumulated pitch errors of the worm with precision being or above third grade can be realized.

The invention discloses a horizontal drilling device which comprises a machine body, an adjustable-speed motor and a hydraulic pressure station, wherein a headstock is installed on the machine body, a gear case is arranged on one side of the headstock, a change gear set is arranged in the gear case, an input shaft of the change gear set is in drive connection with the adjustable-speed motor, the change gear set is provided with two output shafts which respectively pass through the headstock and are connected with a regulation spindle through a universal joint, a sliding operating platform is arranged at the upper end of the machine body in a sliding manner, one side of the sliding operating platform is fixedly connected with a piston rod of an operating cylinder, a drill jig tool is fixedly arranged at one end of the sliding operating platform, the drill jig tool is internally provided with a drill jig matched with a drill, a compressing cylinder is fixedly arranged at the other end of the sliding operating platform, a V-shaped press block is installed on a piston rod of the compressing cylinder, a machined part is clamped between the V-shaped press block and the drill jig, and the compressing cylinder, the operating cylinder and the hydraulic station are connected. According to the horizontal drilling device, multiple holes on the end face of one part can be machined at one time, the operation is simple, the speed is high, the size is accurate, the labor intensity is greatly reduced, and the working efficiency is improved, so that the horizontal drilling device is ideal equipment for high volume products.

The invention belongs to the technical field of polishing of the inner surfaces of straight pipes and particularly relates to a polishing device for the inner surface of a straight pipe. The polishingdevice comprises an overall machine tool frame and a three-jaw chuck arranged on the overall machine tool frame; and the overall machine tool frame comprises a tool body and further comprises a spindle box, a lead screw and a tailstock which are arranged on the tool body. The polishing device is characterized in that a clamping machining part, a guiding part and a magnetic pole part are arrangedon the overall machine tool frame. The polishing device is compact in structure, high in universality, easy to operate and convenient to mount; a magnetic pole chain is mounted, grinding particles arefully utilized to polish the straight pipe which is long and small in inner diameter, and the effect is better especially for a magnetic conductive straight pipe; and compared with a traditional modeof additionally arranging an auxiliary magnetic pole, according to the polishing device, leftward-rightward moving of the magnetic pole chain can be controlled, and the inner surface of a workpiece can be polished thoroughly.

The invention relates to a robot welding system, in particular to a box robot welding system. The box robot welding system comprises a positioner headstock, a tool clamp, a robot sliding table walking mechanism, a robot welding system body, a positioner tail frame and a positioner base. The positioner headstock and the positioner tail frame are mounted on the positioner base. The positioner tail frame can move in the direction close to or away from the positioner headstock. The two ends of the tool clamp are connected with the positioner headstock and the positioner tail frame through fast connecting devices correspondingly. The robot sliding table walking mechanism is arranged on one side of the positioner base. The robot welding system body is arranged on the robot sliding table walking mechanism. According to the box robot welding system, the servo drive sliding table walking mechanism can do X-axis linear motion, and positioner and workpiece rotation and a robot welding gun are matched for achieving welding in various angles.

The invention relates to hydraulic start-stop technique field, particularly a control device of high degree of accuracy synchronization hydraulic start-stop machine. The hydraulic can auto controls double-cylinder synchronous operation in start-stop progress of anchor gate. It has a hydraulic and an electricity control device. The hydraulic control device makeup with an oil pump electric engine group, two rectified speed control value group and a by-pass cut-away gate gurgle value group. The electricity control system makeup with a gate opening-detection device and a PLC. The invention use synchronous closed loop program combine the coarse adjustment of rectified speed control value group and gate gurgle of by-pass cut-away gate gurgle value group. It makes high degree of accuracy synchronization of two fluid cylinders and low cost of hydraulic start-stop machine.

The invention discloses a high-efficiency dial linking machine. The high-efficiency dial linking machine comprises a headstock, a speed-regulating unit, a case and a dial; the headstock comprises a box, a box cover, a gear assembly and an adjusting handle, wherein the box cover is mounted on the top of the box, the gear assembly is mounted in the box, the adjusting handle is linked with the gear assembly, and the gear assembly comprises a first gear assembly and a second gear assembly which are respectively provided with a first helical gear and a second helical gear and are engaged with each other; the speed-regulating unit is linked with the gear assembly through a transmission by being matched with a motor; the case comprises a mounting bracket, an upper shield and a lower shield, and the upper shield and the lower shield are jointly formed into an automatic oil filling device; a helical tooth drive unit, a cam drive mechanism linked with the helical tooth drive unit, a striping unit, a push rod drive mechanism and a dividing unit linked with the cam drive mechanism are mounted in the case, wherein the helical tooth drive unit is linked with the gear assembly through a synchronous drive mechanism; and a debuggable counterweight is mounted on the dividing unit. The high-efficiency dial linking machine has the advantages of stable and smooth operation, good sewing quality, long service life and the like.

The invention relates to an experimental device to detect and analyze wearing of superhard tool. It is a multifunctional rubbing-wearing experimental machine. It is characterized in that: it contains first hydraulic cylinder (1), soleplate (2), first guide (3), upright column (4), gliding block joint plate (5), crossbeam (6), torque sensor (7), hydraulic motor (8), headstock (9), principle axis (10), rotary transducer (11), workbench (13), third hydraulic cylinder (14), third guide (15), slip board (16), second guide (17), second hydraulic cylinder (19) and first pressure sensor (20). Set (20) in (1) and rotate speed measuring flag on principle axis of hole in (11). (11) and (9) are connected. (7) is composed of a twist bar (28) and two torque meter pressure sensors (29). The invention can realize drilling, sawing and milling of tool, test torque, drilling speed and infix pressure parameters of superhard tool during working.

A bicycle headstock assembly may include a lower member adapted to be attached to a steering rod of the bicycle, and an upper member adjustably connected to the lower member. A pivot joint may be formed at a connection of the lower and upper members respectively. A handle bar clamp may be connected to the upper member and extending away therefrom. A primary fastener may pass through a first location of the pivot joint while an auxiliary fastener may pass through a second location of the pivot joint respectively. In this way, the primary and auxiliary fasteners may cooperate to permit the upper member to selectively pivot and lock at alternate positions relative to the lower member.

A tool holding device is disposed between a headstock unit and a tailstock unit of a five-axis lathe, and includes a saddle driven to move longitudinally, a cross-slide riding on the saddle and driven to move transversely, a turntable platform disposed on a base mount that is disposed on the cross-slide and driven to revolve about an upright axis, and a tool post mounted on a base rest that is disposed on the turntable platform and driven to move uprightly. An indexable turret is disposed on the tool post for holding tool bits such that the five-axis lathe can perform movements about five axes to machine a workpiece so as to obtain a complicated geometric shape, thereby reducing setup time and errors and increasing production.

The invention discloses a welding system, in particular to an assembly welding system for cone-shaped pipe circumferential welds. A headstock locking machine is arranged on a headstock installing plate. The right end of a base is provided with a tailstock locking machine, a gantry external pressure tool is arranged on the base, and the two ends of the gantry external pressure tool are provided with rolling wheel bracket machines respectively. An overturn railway is provided with an overturn feeding machine. The tailstock locking machine, the gantry external pressure tool, the rolling wheel bracket machines and the overturn feeding machine are connected with a drag chain. The upper portions of the headstock locking machine and the tailstock locking machine are provided with flange hoisting systems respectively, and the flange hoisting systems are distributed correspondingly to the rolling wheel bracket machines. The assembly welding system for the cone-shaped pipe circumferential welds is compact in structure, manual press-button operating is achieved, and feeding and centering are completed electrically; mechanized production is achieved, efficiency is greatly improved, labor intensity is reduced, production quality is ensured, and human factors are decreased; the assembly welding system is convenient to operate, high in speed, stable and high in efficiency.

The invention relates to a broken chain monitor device and method for a coal face scraper conveyer. The device is characterized by comprising pressure load sensors installed on two arc blocks of a headstock of the scraper conveyer, so that pressure signals between each arc block and a bearing pedestal of a chain wheel shaft set are measured in the working process of the scraper conveyer, the pressure load sensors are connected with a PLC in a monitor case of the scraper conveyer, and the PLC is also connected with a head motor and a tail motor of the scraper conveyer through a combined switch. It is proved on trial that by adoption of the monitor method, the pressure signals between each arc block and the bearing pedestal of the chain wheel shaft set can be measured in the working process of the scraper conveyer according to the pressure load sensors installed on the two arc blocks of the headstock, so that the operating situation of a chain is monitored and controlled in real time.

The invention relates to a crankshaft flange eccentric hole clamp for a drill, which comprises a clamp body, a positioning column, a headstock mechanism and a tailstock mechanism. In the headstock mechanism, a headstock oil cylinder is fixed on a fixed support with bolts and positioning pins; the fixed support is fixed on the clamp body; a guide sleeve is installed on the headstock oil cylinder; one end of a piston rod is provided with a piston, the other end of the piston rod passes through the guide sleeve and is installed in the hole of the headstock oil cylinder; and the conic section of the front of the piston rod is pushed into the central hole of the big end of a crankshaft. In the tailstock mechanism, a tip guide sleeve is installed on a tailstock; the tailstock is connected with and installed on a subplate by keys; the subplate is connected with and installed on the clamp body by radial keys; one end of the tailstock piston rod is provided with a piston, the other end of the tailstock piston rod is installed in the hole of the tailstock by a fixing flange, a connecting flange and the tip guide sleeve, and the conic part of the front end of the tailstock piston rod is pushed into the small end of the crankshaft. The invention has the advantages of reasonable structure, convenient assembly, low production cost, high universality, and oil hole drilling high efficiency and is suitable for processing various crankshaft flange eccentric holes.

A bracket for mounting a tuning device on a headstock of a string instrument and a bracket-mountable tuning device are disclosed. A primary arm with a plate attaches to a spring arm with a clamping arm by a releasable ratchet engagement. The clamping arm is reciprocable to the plate. A tuner attaches in a rotatable engagement to the plate opposite a mounting surface. An instrument headstock can be positioned between the plate mounting surface and clamping arm and the clamping arm moved toward the plate to a clamping position with the headstock trapped therebetween with substantially constant pressure on the headstock. The tuner is substantially hidden from the front view of the headstock. The clamping arm is maintained in the clamping position by the ratchet engagement until the ratchet engagement is released.