1891results about How to "Quick clamping" patented technology

The invention provides a full-automatic PCB (printed circuit board) positioning clamp. The full-automatic PCB positioning clamp comprises a support seat, a support rod, a sliding support plate, a fixed-side railing, a movable-side railing, width adjusting mechanisms, conveying mechanisms, clamping mechanisms, a top plate mechanism, a detecting mechanism and a positioning mechanism, wherein the support rod and the width adjusting mechanisms are assembled on holes reserved on the lateral side of the support seat, the fixed-side railing is fixed on the support seat, the sliding support plate is slidably connected with the support rod, the movable-side railing is fixed on the sliding support plate which is connected with the width adjusting mechanisms, the conveying mechanisms are mounted on the inner sides of the fixed-side railing and the movable-side railing to form a PCB delivery rail, the clamping mechanisms are fixed on the fixed-side railing and the movable-side railing, the detecting mechanism is mounted on the fixed-side railing, and the positioning mechanism used for positioning the PCB when entering is fixed at a positioning position on the fixed-side railing. The full-automatic PCB positioning clamp can quickly automatically deliver the PCB, and can position and clamp the PCB accurately, reliably and conveniently, and production efficiency of an assembly line is improved.

The invention provides a self-centering clamping device of a drill press workpiece. The device can realize the self-centering function for a workpiece. The device comprises a connecting base, a workbench rotary disc, a main shaft, a parabola self-centering flower disc, a plurality of connecting rods and a plurality of positioning pawls, wherein the workbench rotary disc can be arranged above the connecting base in a rotary way, the main shaft is fixedly arranged below the middle part of the workbench rotary disc, the parabola self-centering flower disc can be arranged below the workbench rotary disc on the main shaft by a transmission mechanism in a rotary way, arc-shaped gradually slotting grooves are uniformly formed in the parabola self-centering flower disc in the radial direction, the head of one connecting rod is hinged to the end of the other connecting rod, both ends of each of the connecting rods are respectively a first hinging end and a second hinging end, the first hinging ends are respectively hinged to the arc-shaped gradually slotting grooves on the parabola self-centering flower disc, long hinging grooves corresponding to the positions of the peripheral sides of the arc-shaped gradually slotting grooves are respectively formed in the parabola self-centering flower disc, the second hinging ends are respectively hinged to the long hinging grooves in a hinge way, and the positioning pawls are respectively arranged above the second hinging ends of the connecting rods.

The invention discloses a V-block-positioning pneumatic clamping machining center fixture comprising a fixture body, a positioning mechanism and a clamping mechanism. The positioning mechanism comprises a V-block fixed on the fixture body, a fixed support and an auxiliary support are fixed on the upper end faces of two ends of the V-block respectively, and a cylindrical stop pin is arranged on one side corresponding to the center of a V-opening of the V-block. The clamping mechanism comprises two cylinders respectively located on two sides of the V-block, a column is arranged between each cylinder and the V-block, the bottoms of the two columns are fixed on the fixture body, push rods of the cylinders are arranged vertically, a lever is mounted on the top of each push rod transversely and rotationally, the middle of each lever is rotationally mounted at the top of the corresponding column, the other end of each lever is fixed with a pressing block, and each pressing block is located on the lower end face of the corresponding lever and located over the fixing support or the auxiliary support. The V-block-positioning pneumatic clamping machining center fixture is quick and accurate in positioning, quick, controllable and reliable in clamping, and capable of guaranteeing machining stability.

The invention discloses a hydraulic support plunger outer surface laser cladding repairing method. The hydraulic support plunger outer surface laser cladding repairing method comprises the following steps that firstly, turning is carried out on the outer surface of a hydraulic support plunger to be repaired to remove a fatigue layer and an electroplated layer on the outer surface of the hydraulicsupport plunger, and the outer surface of the hydraulic support plunger is washed; secondly, iron-base alloy powder for laser cladding is put into laser cladding equipment, the laser cladding equipment is used for carrying out laser cladding on the outer surface of the hydraulic support plunger, and a laser cladding layer is formed; thirdly, rough turning is carried out on the hydraulic support plunger which is subjected to laser cladding; fourthly, abrasive machining and polishing treatment are carried out on the hydraulic support plunger which is subjected to rough turning, and the roughnessRa of the outer surface of the polished hydraulic support plunger is smaller than or equal to 0.4; and fifthly, checking and flaw detection are carried out on the outer surface of the polished hydraulic support plunger, and laser cladding repairing of the outer surface of the hydraulic support plunger is completed after it is ensured that no defect exists. The laser cladding layer formed throughthe repairing method is high in hardness, large in thickness and high in corrosion resistance and longer in service life.

The invention discloses a fixture which is used for grinding a spherical gasket and is characterized in that the fixture comprises a flange and a clamp head which are fixedly connected; the clamp head has a same spherical arc surface as the spherical gasket, and the inside of the clamp head is provided with an electromagnetic coil. The fixture can fast clamp and fix a plurality of spherical gaskets, and is convenient for the processing device to finely process the spherical gasket with high efficiency. The accuracy and the surface smoothness of the spherical gasket are greatly increased without greatly increasing the processing cost..

The invention relates to a dimension correction device in large double-curved surface plate part processing; a T-shaped groove in a rectangular direction is arranged on the upper surface of the workbench surface of a milling machine, and a plurality of connecting bolts are arranged in the T-shaped groove; and one end of a pressure plate is provided with a long strip hole and the other end of the pressure plate is provided with a reverse support bolt, wherein the long strip hole is connected with the connecting bolt, and the bottom surface of the support bolt is contacted with the surface of the workbench surface of the milling machine. According to the correction device, the structure is simple, the correction method is easy and convenient, simultaneously the working efficiency is improved, the problems of a large vacuum absorption platform that the fixation is not firm and the hole positioning stress cannot be released are solved, and the number of various other positioning clamps in processing is greatly reduced.

The invention discloses a full-automatic commutator excircle lathe which comprises a lathe bed, a main spindle box and a tool rest, wherein the main spindle box is fixedly arranged on the lathe body and is internally provided with an electrical main spindle; and the tool rest is slidably arranged on the lathe body and is driven by a motor. The invention is characterized in that the full-automatic commutator excircle lathe also comprises an automatic loading device, a rapid clamping device and an automatic unloading device. The lathe can realize full-automatic processing of the excircle of a commutator, has simple structure, greatly improves the processing efficiency and lightens the labor intensity.

The invention discloses a welding tool of an anti-collision beam and a mounting plate. The welding tool comprises a mounting plate body, the anti-collision beam and an energy absorbing box, wherein the anti-collision beam is welded to the energy absorbing box. Positioning holes are formed in the mounting plate body. The mounting plate body comprises a mounting platform. The mounting platform is provided with a supporting platform, a supporting assembly, a first pressing assembly, a second pressing assembly, a transverse pushing positioning assembly and end part positioning blocks. A positioning column is arranged on the supporting platform. The supporting platform and the positioning column position the mounting plate body. The second pressing assembly compresses the mounting plate body and the supporting platform. A positioning circular hole is formed in the anti-collision beam. A circular hole positioning assembly are arranged on the mounting platform. The supporting assembly, the end part positioning blocks and the circular hole positioning assembly position the anti-collision beam. The first pressing assembly compresses the anti-collision beam. The transverse pushing positioning assembly positions the energy absorbing box, so that the welding positions of the energy absorbing box and the mounting plate body are determined. Clamping is reliable, rapid and accurate, and efficiency is improved greatly.

A clutch master cylinder body piston hole drilling clamp comprises a base, a first hydraulic cylinder, a first pin, a pressing plate, a second pin, a V-shaped locating block and a second hydraulic cylinder. Lug seats are arranged at the left end and the right end of the base, a round boss is arranged at the right end of the upper surface of the base, a supporting frame is arranged on the left side of the round boss, a trapezoid supporting table is arranged at the left end of the upper surface of the base, the first hydraulic cylinder is fixed to the round boss of the base through screws, the tail end of the pressing plate is hinged to one end of a first piston of the first hydraulic cylinder through the first pin, the middle of the pressing plate is hinged to the supporting frame through the second pin, the V-shaped locating block is located between the supporting frame and the trapezoid supporting table, and is fixed to the base through bolts, and the second hydraulic cylinder is welded to the trapezoid supporting table. Fast clamping can be achieved, work efficiency is greatly improved, machining precision is guaranteed, meanwhile, labor force is saved, and the investment of production cost is lowered.

The invention discloses a test device, in particular to a connector product test device which is high in test accuracy, reduces test cost and improves test efficiency. According to the connector product test device, a test pin is adopted to replace the test connector in the prior art for product testing, is arranged on a movable carrier and is electrically connected with a test terminal. During testing, the carrier moves by aid of manual operation or through a power device and drives the test pin to move in the direction of a connector to be tested, and finally the tail end of the test pin is contacted with a metal sheet of the connector to be tested to achieve testing. The connector product test device is widely applied to the connector test field.

The invention discloses an efficient furniture board polishing device. The efficient furniture board polishing device comprises a bottom plate, a left side plate, a right side plate, a top plate, a supporting plate, a first connecting rod, a second connecting rod, slide rails, a first electric push rod, mounting plates, rotating shafts, semicircular gears, clamping devices, a gear, a first motor,a second motor, a threaded rod, an internal threaded sleeve, a connection rod and a polishing roller. By joint action of the first connecting rod, the second connecting rod and the first electric pushrod, the supporting plate is driven to perform lifting motion, then the supporting plate drives boards to realize lifting motion, and convenience in polishing of the boards in different thicknesses is achieved; by combination with translation of the polishing roller, arc polishing of the boards on a polishing table can be realized through joint motion; by arrangement of the clamping devices, theboards are clamped or released by clamping plates through part cooperation, and convenience in operation and reliability in clamping are realized; by arrangement of the semicircular gears and the gear, quick turning of the boards is realized, double-side polishing of the boards is facilitated, and simplicity in operation, convenience and practicality are realized.

The invention relates to a quick automatic installation tool for charged fire welding operation. The tool comprises a clamping device, a screwing device, an unlocking device and an insulating rod, wherein the screwing device comprises a spiral self-elevating sleeve, a rotary sleeve fixing seat and a fixed torque spanner; the spiral self-elevating sleeve has external threads, and the rotary sleeve fixing seat has internal threads; the spiral self-elevating sleeve is connected with the rotary sleeve fixing seat by the threads; one end of the spiral self-elevating sleeve is connected with the fixed torque spanner in a transmission way, and the other end of the spiral self-elevating sleeve is in profile connection with a nut of a J-shaped parallel groove clamp; the rotary sleeve fixing seat is fixed relative to the clamping device; the clamping device and the screwing device are positioned at one end of the insulating rod, and the unlocking device is positioned at the other end of the insulating rod or is close to the other end of the insulating rod. The quick automatic installation tool is used for installing the J-shaped parallel groove clamp applied to the fire welding operation, can realize long-distance operation, is convenient in clamping and rapid in fire welding process, and is capable of realizing automatic long-distance quick unlocking.

The invention discloses an alignment clamp with a top opening and the 360-degree rotation function. The alignment clamp with the top opening and the 360-degree rotation function is a clamping and turnover device for welding a weld assembly which is of a long-box-shaped steel structure, can achieve rapid clamping and high-accuracy and 360-degree continuous rotation of the weld assembly of the long-box-shaped steel structure, and can stop at any position. When the center of gravity of the weld assembly of the long-box-shaped steel structure and the alignment clamp with the top opening and the 360-degree rotation function do not share the same axis, the center of gravity of the weld assembly of the long-box-shaped steel structure can coincide with the center of rotation by adjusting the positions of three sliding plates. The alignment clamp with the top opening and the 360-degree rotation function comprises a rack, a rotation mechanism, an electric clamping mechanism and a safety mechanism.

A pedal beating apparatus for musical instruments comprises a pedal beating holder, an elevation adjustment tray and a clamp beam. The elevation adjustment tray is movable against the pedal beating holder and has an elevation difference curved surface. The pedal beating holder has a fulcrum member. The clamp beam hinged on the fulcrum member has a clamp end and a leaning end at two ends. A compression spring is interposed between the clamp beam and pedal beating holder and located between the clamp end and fulcrum member to allow the leaning end to move downward to contact the elevation difference curved surface. By moving the elevation adjustment tray, position of the leaning end contacting the elevation difference curved surface is adjusted to further drive the clamp end to move. Thus distance between the clamp end and clamp boss can be changed to rapidly clamp drum hoops with varying thicknesses.

The invention discloses a clamp device for processing a brake cylinder of a high-speed rail train, comprising a dividing head (1), a positioning clamp (2), a cylinder tail stock (3) and a pedestal. In the technical scheme, the clamp device is formed by the quarter dividing head driven and locked by a high-accuracy hydraulic valve, the positioning clamp, the cylinder tail stock and the pedestal; when in application, the positioning clamp is clamped by a dividing head clamping disc; a workpiece is clamped by the positioning clamp and is tightly pressed on the positioning clamp by means of the cylinder tail stock; and the hydraulic valve of the dividing head is driven by a numerical control milling machine to control the dividing head to drive the workpiece to be matched with the cutting of a cutting tool in a controlled mode so as to automatically rotate and change the surface. Thus, the invention overcomes the problems and defects of high cost, low efficiency and possible out-of-tolerance in the prior art, and ensures that the multi-surface processing of the brake cylinder of the high-speed rail train can be finished in one-time clamping procedure on a general numerical control milling machine through fast clamping and controlled rotation and surface changing, thereby achieving the purposes of reducing the cost, improving the efficiency and improving the product qualification rate.

The invention relates to the technical field of fruit processing equipment and especially relates to a machine for automatic hole opening and juice extraction of a coconut, and a method for the hole opening and juice extraction. The machine for the automatic hole opening and juice extraction of the coconut provided by the invention comprises a supporting tray mechanism and at least one set of clamping mechanism and hole opening cutter, wherein each set of clamping mechanism and hole opening cutter are coaxially disposed on two sides of the supporting tray mechanism and can be moved relatively along the axis; and each clamping mechanism is used to clamp and fix the coconut on the supporting tray mechanism, and the hole opening cutter is inserted into the coconut for synchronous hole opening and juice extraction of the coconut. The machine and method for the automatic hole opening and juice extraction of the coconut have the advantages that the juice extraction operation can be executed automatically during the hole opening; operation processes are simplified; the structure is simple; and production efficiency is increased.