178results about How to "Stable clamping force" patented technology

The invention discloses a hydraulic fixture used for machining a precision forging blade tenon root. The fixture consists of a fixture box cover part in contact with a blade back and a fixture box body part in contact with a blade basin; by transferring pressure of liquid in a hydraulic cavity of the fixture to other parts, a blade is clamped, so that the clamping force applied on the blade is more uniform and stable; when the hydraulic fixture is used for clamping, the blade can be clamped and loosened only by screwing a pressing regulation rod in and out, the operation control is convenient, and the damage to the blade is reduced. According to the hydraulic fixture used for machining the precision forging blade tenon root, the machining efficiency of the blade of an aviation engine can be improved, the machining precision of the blade of the aviation engine is also improved, and the clamping problem brought about when the precision forging blade tenon root is machined is solved; the fixture is simple in structure, convenient to install and high in positioning precision; the positioning precision is not affected even when the hydraulic fixture is dismounted for a plurality of times; and the hydraulic fixture is also applicable to the machining and application of the other types of blades.

The invention discloses a clamping mechanism of a line pipe welding edge. The clamping mechanism comprises a support rack, wherein the support rack is provided with a fixed rod, which is provided with a fixed cylinder and a check ring, an air cylinder is fixed on the check ring, the output end of the air cylinder is connected with the fixed rod through a slide cylinder, the slide cylinder is arranged between the fixed cylinder and the check ring, pull-down rods are connected to two ends of the slide cylinder through hinges, swing arms are connected to the ends of the pull-down rods through hinges, the swing arms are hinged with the fixed cylinder through an upper swing rod and a lower swing rod, and when force of the swing arm applied to the inner wall of a pipe fitting reaches the maximum, a cutting tool on a lathe rotatably processes the edge of the pipe fitting, the adjustable swing arm can be used for processing grooves of pipe fittings with various diameters; the upper swing rod, the lower swing rod, the pull-down rods and the fixed rod form a triangular frame, and according to the principle of highest stability of the triangle, the swing arm can provide stable clamping force for the inner wall of the pipe fitting, and the high processing efficiency of the groove of the pipe fitting is guaranteed.

The invention discloses a panel feeding clamp, which comprises a base for external installation, a pincer seat with one end fixed on the base, a substrate fixed on the base, a compression bar with the middle hinged with the other end of the pincer seat and an external casing. The compression bar is provided with a pincer opening end and a non-pincer opening end, wherein the pincer opening end andthe pincer seat form a pincer opening, and the non-pincer opening end is controlled by a driving mechanism to achieve opening or closing of the pincer opening, the driving mechanism comprises a cylinder arranged on the pincer seat and a spring assembly arranged on the substrate, the cylinder is connected with the spring assembly, the casing is rotatably provided with a C-shaped crank arm, one endof the crank arm is hinged to a connection portion of the cylinder and the spring assembly, the other end of the crank arm is hinged to a connection plate capable of sliding along the surface of the pincer seat, and elasticity effects of the spring assembly drive the connection plate to move close to the compression bar to enable the pincer opening to clamp a panel through the crank arm. When thecylinder applies reverse force on the crank arm, the crank arm drives the connection plate to move far away from the compression bar to enable the pincer opening to open. The clamp force is stable and reliable, has no damage to the surface of the panel, and avoids influences of power-down, decompression or pressure oscillation.

The invention provides a clamping instrument which mainly comprises a base, at least two clamping structures distributed on the base in the circumferential direction and at least two abutting structures correspondingly arranged on the sides, close to the base, of the clamping structures. when the clamping structures are in the locking state, the abutting structures clamped between the base and the clamping structures can apply abutting force to the clamping structures so as to adjust the clamping gaps corresponding to the clamping structures. Therefore, the clamping device can provide stable and continuous clamping force.

The invention discloses a pneumatic torque-adjustable cap screwing device capable of flexibly clamping, which comprises a cap screwing thread bushing, an elastic clamp ring, a rotary cover base, a gland core, a central spindle seal ring, a tightening nut, an air cavity, air inlet passages, a hollow rotating shaft, a protecting bush, an axial seal ring, a lower bearing pedestal, a bearing, an air inlet pipe, an upper bearing pedestal, an adapter sleeve, a connecting seat and a pneumatic motor, wherein the cap screwing thread bushing, the elastic clamp ring, the rotary cover base, the gland core, the central spindle seal ring, the tightening nut, the air cavity and the air inlet passages form a bottle cap pneumatic chuck; the hollow rotating shaft, the protecting bush, the axial seal ring, the lower bearing pedestal, the bearing, the air inlet pipe, the upper bearing pedestal, the adapter sleeve, the connecting seat and the pneumatic motor form a pneumatic cap screwing drive part; the bottle cap pneumatic chuck is utilized to flexibly clamp a bottle cap, the clamping force can be adjusted, the bottle cap cannot be damaged, and clamp marks cannot be preserved on the bottle cap. The pneumatic cap screwing drive part can stably screw the bottle cap in a fixed torque manner according to the predetermined requirements, and the torque of cap screwing can be adjusted and controlled. A pressure relief air passage communicated with the outside is arranged on the lower end surface of the gland core, so that a bottle cap can be conveyed to a certain position. The device has the advantages that the structure is simple, the pneumatic flexible clamp is realized, the pneumatic cap screwing is performed in a torque-adjustable manner, the cap screwing operation is stable and reliable, the cap screwing speed is high and steady, the running cost is low, and the maintenance is facilitated.

The invention discloses a locating device for line pipe groove machining. The locating device for the line pipe groove machining comprises a central shaft, the central shaft is fixed on a turning lathe, and a fixed barrel is mounted on the central shaft. The locating device for the line pipe groove machining further comprises an air cylinder, the output end of the air cylinder is connected with the central shaft through a sliding barrel, a sliding barrel is arranged on the central shaft, lower links are connected to the two ends of the sliding barrel through hinges, swinging arms are connected to the ends of the lower links through hinges, the swinging arms are hinged to the fixed barrel through an upper oscillating bar and a lower oscillating bar, grooves are formed in the two ends of the central shaft, multiple rolling wheels are mounted in the sliding barrel, and the rolling wheels are arranged in the grooves in a sliding mode, and the upper oscillating bar, the lower oscillating bar, the lower links and the central shaft form a triangular frame. According to the principle that a triangle is highest in stability, the swinging arms can provide stable clamping force for the inner wall of the pipe fittings, and the efficiency for processing grooves of pipe fittings is guaranteed.

The invention discloses an enameled wire paint film tensile test clamp device, comprising a holder, wherein a storage space of which one side is open is set in the holder; a rotation shaft which penetrates the holder located at two ends of the storage space, wherein a fixing part for fixing one end of a test sample is set on the rotation shaft; a positioning pin which penetrates the holder locatedat one end of the storage space, resists against with a side wall of the rotation shaft and is used for limiting displacement in an axial direction of the rotation shaft and rotation of the rotationshaft; a fixing shaft which penetrates the holder located at the other end of the storage space and the rotation shaft and is used for limiting the displacement in the axial direction of the rotationshaft and the rotation of the rotation shaft; and an eccentric screw which stretches into an end part of an end of the rotation shaft away from the fixing shaft, is fixedly connected with the rotationshaft and is used for fastening one end of the test sample. According to the device, completeness of paint film of the test sample is ensured, under the condition that the paint film is not broken bya clamp, clamping force is stable without slipping, and accuracy of a test result is ensured.

The invention discloses a flexible self-adaptive hub carrying mechanical arm, which comprises a support frame. The left side surface of a support plate is connected with a left cylinder, and the rightside surface is connected with a right cylinder; a supporting plate is connected with a fixed base; guide rails are arranged on the fixed base; guide rail grooves are formed in the bottoms of a leftside moving base and a right side moving base; the left cylinder is connected to the left side of the fixed base; a cylinder shaft of the left cylinder is connected with the left side moving base; theright cylinder is connected with the right side of the fixed base; a cylinder shaft of the right cylinder is connected with the right side moving base; the left moving base is connected with a left finger-shaped clamping jaw; and the right moving base is connected with a right finger-shaped clamping jaw. According to the driving mode, more stable clamping force is provided, and a larger clampingjaw change range is obtained, so that hubs in a larger size range can be clamped; and the mechanical arm has large clamping force clamping force for large hubs and small clamping force for small hubs,and high flexibility of a hub production line is achieved.

The invention discloses splined hub middle hole boring equipment with a size adaption function, and relates to the technical field of automobile part production. The equipment specifically comprises abase, a scrap iron collecting mechanism, an adjustable boring mechanism, an inner hole machining pin and a self-centering lever clamp, wherein a control end is arranged on one side of the base, a cutting fluid sprayer is arranged on one side of a shaft sleeve, and a press claw is arranged at the top end of a trapezoidal base. According to the splined hub middle hole boring equipment with the sizeadaption function, through the arrangement of the scrap iron collecting mechanism, and the structure that a flow guide groove is hidden in a groove 20-60 cm away from the top end of the base, the cutting fluid and the scrap iron are prevented from overflowing due to too small height, and the spiral transmission effect is not obvious and the scrap iron is easily accumulated in the middle of the groove to cause blockage due to too large height is avoided; and due to the sawtooth-shaped structural design of a spiral progressive blade, the sawtooth-shaped spiral blade has the advantages of high efficiency of a rectangular spiral blade and high strength of a trapezoidal spiral blade, and can adapt to rapid conveying of the scrap iron and cutting fluid waste.

A material grabbing flexible gripper suitable for various structure styles relates to a material grabbing flexible gripper and solves problems of cost increase and production efficiency reduction due to the employments of mechanical grippers with various structural shapes or sizes when material with various shapes or sizes is grabbed by a robot gripper in the prior art. The material grabbing flexible gripper comprises a gripper assembly (1), a lead screw (2), a servo motor (3) and a supporting rack body (4), wherein the servo motor (3) is installed on one side of the lower end of the supporting rack body (4); an output end of the servo motor (3) is connected with one end of the lead screw (2); the other end of the lead screw (2) is connected with the supporting rack body (4); and the gripper assembly (1) is movably installed on the lead screw assembly (2). Material with various structure styles can be grabbed.

The invention discloses asynchronous gear ring machining-oriented production equipment with a depth measurement function and belongs to the technical field of automobile part detection. The equipmentcomprises a base, a self-centering lever clamp, a linear guide rail lead screw mechanism, a synchronous belt clutch mechanism and a depth and inner diameter measuring mechanism; a control end is arranged at one end of the base; the top end of a support is provided with a ram. According to the synchronous gear ring machining-oriented production equipment with the depth measurement function, a depthand inner diameter measuring mechanism is arranged, the linear guide rail screw rod mechanism assists the depth and inner diameter measuring mechanism to descend to a specified height under the guidance of a fixing pin to accurately and quickly measure the depth of an inner cavity of a synchronous gear ring material, and then a worm is separated from a spiral sleeve under the action of the worm and threaded hubs to drive an elastic pin to expand and deform, so that the inner diameter of the synchronous gear ring material can be measured. The flow design is adopted, the speed and precision arehigh, rapid conveying detection of large-batch materials can be achieved through the continuous conveying of a conveying belt, so that the production efficiency is greatly improved.

The invention discloses a clamping method for a wire pipe welding edge. When an acting force of a swinging arm on the inner wall of a pipe fitting becomes maximum, a cutting tool on a lathe starts to perform rotary machining on the edge of the pipe fitting; the swing arm capable of being freely adjusted can be used for pipe fitting grooves in various diameter sizes for treatment; and an upper swing rod, a lower swing rod, a lower pulling rod and a fixing rod form a triangular framework, according to the principle that the stability of a triangle is highest, the swing arm can provide a stable clamping force for the inner wall of the pipe fitting, and the pipe fitting groove treatment efficiency is guaranteed.

The invention belongs to the technical field of machine manufacturing and discloses a built-in hydraulic clamping chuck used for a spline cold rolling machine tool and an assembly machine. The built-in hydraulic clamping chuck comprises a flange positioning installation component, an axial positioning radial elastic clamping component, a connecting component and a movable center component. The movable center component is located at the central part of the built-in hydraulic clamping chuck; the left end of the movable center component is provided with the axial positioning radial elastic clamping component; the flange positioning installation component is arranged outside the left end of the movable center component; the flange positioning installation component is in threaded screwed connection with the axial positioning radial elastic clamping component by the connecting component; the connecting component is located outside the right end of the chuck. According to the built-in hydraulic clamping chuck disclosed by the invention, not only can accurate axial positioning be realized but also the uncertainty of the strength of a clamping force can be eliminated by using hydraulic clamping. The clamping force is stable and reliable. Moreover, the built-in hydraulic clamping chuck has the advantages that the structure is compact, the occupied length of a machine tool slide guide is small, and the processing range of the machine tool is broadened. The built-in hydraulic clamping chuck is easy to manufacture and install, and is very good in use value.

The invention relates to the field of mechanical clamps, and discloses an automatic mechanical clamp device and a clamping method. The automatic mechanical clamp device comprises a supporting rod. A sliding block with a guide rod is mounted on the supporting rod. Two clamp pieces with clamping force adjusting mechanisms are mounted on the guide rod. Each clamping force adjusting mechanism comprises multiple hydraulic cylinders with pistons. An electric conduction coil is wound around the barrel wall of each hydraulic cylinder. A pressure sensor is arranged at the free end of each piston. A relay control board is arranged on each electric conduction coil. Each replay control board is electrically connected with the corresponding pressure sensor. Liquid media of the hydraulic cylinders are magnetorheological fluid. According to the automatic mechanical clamp device, when clamping force reaches a threshold value set by the replay control boards, the replay control boards achieve circuit breakover of the electric conduction coils, a magnetic field is applied to the magnetorheological fluid, the magnetorheological fluid is converted into high viscosity and a low flowing state from a flowing state, and therefore the clamping force is stable; and clamped objects can be clamped and moved, and meanwhile the problem that too large clamping force is applied, and consequently the clamped objects are damaged can be avoided.

The invention discloses an intelligent, adjustable, accurate and self-locking type clamping device for a furniture plate body. The intelligent, adjustable, accurate and self-locking type clamping device for the furniture plate body comprises a fixed base and an adjusting screw, wherein the fixed base comprises a clamping portion and a fixing portion. The intelligent, adjustable, accurate and self-locking type clamping device for the furniture plate body is characterized in that a movable base which is connected with the fixed base in a sliding mode is arranged on the fixed base, the adjusting screw is connected to the fixed base and the movable base in a penetrating mode, the adjusting screw is connected with the fixed base in a threaded mode, an adjusting plate is arranged on the top of the movable base, the end portion of the adjusting screw is sleeved with the adjusting plate, and the position of the adjusting plate corresponds to the position of the clamping portion. The intelligent, adjustable, accurate and self-locking type clamping device for the furniture plate body can be flexibly adjusted, is strong in stability and can automatically conduct locking.

The invention discloses a compression tensile testing machine controlled by a computer. The compression tensile testing machine comprises a support body, a base and a computer, the support body and the computer are fixedly arranged on the top surface of the base, the computer is located on the right side of the support body, a lifting cavity with a rightward opening is formed in the support body,an auxiliary block is arranged on the left wall of the lifting cavity in an up-down sliding manner, and a rectangular cavity with a forward opening is formed in the auxiliary block. According to the invention, in a condition that a special clamp does not need to be manufactured, a vertical tensile compression test is carried out on a test article, a tensile compression test in the cross section direction can be easily carried out, the test process becomes easier and more convenient, time does not need to be wasted for manufacturing a clamp, the intelligent automation degree of the compressiontensile testing machine can be increased by direct calculation of the computer, and the obtained test data is more accurate.

The invention discloses a rotating type hydraulic manipulator. The rotating type hydraulic manipulator comprises a base, a rotating base, a first mechanical arm, a second mechanical arm and a clampingplier body; the rotating base is arranged at the upper end of the base in a relative rotating manner; a lifting hydraulic cylinder is fixed to the upper end face of the rotating base; a lifting loopbar is installed on the upper end face of the lifting hydraulic cylinder, and a lifting sliding rod is arranged in the lifting loop bar in a sliding sleeved manner; a stand column is vertically fixedto the upper end face of the lifting sliding rod; a rotating shaft is arranged between the first mechanical arm and the stand column for rotational connection; the first mechanical arm and the secondmechanical arm are rotationally connected through a rotational connection piece; a hydraulic pump is fixed to the outer surface of one side of the clamping plier body, and is connected with a hydraulic cylinder arranged in the clamping plier body; hydraulic loop bars are uniformly installed on the hydraulic cylinder; and hydraulic sliding rods are installed in the hydraulic loop bars in a slidingsleeved manner. According to the rotating type hydraulic manipulator, height adjusting and firm grabbing on articles, especially large articles, can be achieved through a hydraulic principle.