92results about How to "Stable pressing force" patented technology

The invention relates to a multifunctional automatic drilling and riveting actuator based on an autonomous multi-legged mobile platform. According to the multifunctional automatic drilling and riveting actuator, the mobile platform serves as a carrier, product theory information is extracted, a scanning camera and a laser displacement sensor are utilized to establish a drilling and riveting system coordinate system, the relation between the coordinate system and a product coordinate system is established through coordinate conversion, and extracted product theory data are converted to a right-angle three-dimensional coordinate system of the drilling and riveting system; accordingly, the drilling and riveting system can be controlled to conduct drilling and riveting, continuous high-precision and high-efficiency drilling and riveting on products at multiple positions can be achieved.

A linear drive ultrasonic motor includes at least an ultrasonic vibrator having a piezoelectric element, a driven member which is driven by a frictional force between the driven member and the ultrasonic vibrator, a pressing member which presses the ultrasonic vibrator such that a frictional force is generated between the ultrasonic vibrator and the driven member, a guiding mechanism which movably supports the driven member, and a case member which accommodates the ultrasonic vibrator, the pressing member, and the guiding means. The case member includes a first opening portion for making the driven member pass through, and a second opening portion which opens in a direction different from a direction in which the first opening portion opens and a direction of pressing by the pressing member.

The invention discloses a high-power drafting assembly used for a ring spinner, comprising a front drafting roller pair with a front roller and a front belt roller, and a rear drafting roller pair with a rear roller and a rear belt roller, wherein, a middle roller and an upper middle roller are arranged between the front drafting roller pair and the rear drafting roller pair, an upper pin is arranged between the upper middle roller and the front belt roller, while a lower pin is arranged between the middle roller and the front roller, an upper apron is sleeved on the upper middle roller and the upper pin, a lower apron is sleeved on the middle roller and the lower pin, the forward setting distance K between the upper pin front edge and the lower pin front edge is at least 3 millimeters, the ratio of the setting distance L from the upper middle roller to the front belt roller and the setting distance S from the roller to the front roller is between 1.1 and 1.6. The high-power drafting assembly can shorten the freestream flow zone length to the utmost extent, extend the control area of the apron, effectively increase the drafting multiple of the drafting assembly and guarantees the quality of the completed filament.

A one-way roller clutch includes an outer ring, and an inner ring mounted inside the outer ring and having an outer cylindrical surface. The outer ring has on its inner periphery a plurality of cam surfaces each defining a wedge-shaped space in cooperation with the cylindrical surface of the inner ring. Rollers are each mounted between one of the cam surfaces and the cylindrical surface. Each roller is biased by a coil spring toward a narrow portion of the corresponding wedge-shaped space. Each coil spring has at its end facing the roller a radially outwardly extending spiral roller abutment portion. The roller abutment portion prevents the end of the coil spring from slipping along and separating from the roller, thus stabilizing the attitude of the coil spring.

The invention relates to a laser holography graph-text stamping method. The method comprises that a stamping working plate is installed on a cylinder, and at least two stamping working positions are arranged along the circumferential direction of the stamping working plate. The method is characterized in that: a certain pressing force is maintained between the stamping working plate and the cylinder at each stamping working position; the stamping working plate is divided into a stamping working area the temperature of which reaches the stamping working temperature and a transitional area the temperature of which is lower than the stamping working temperature, and the joints of the two ends of the stamping working plate are positioned at the transitional area; at each stamping working position, the stamping working area is used for stamping the laser holography graph-text at the stamping materials, and for leading the laser holography graph-text stamped at the stamping materials by each stamping working position to be subsequently connected. The laser holography graph-text stamping method of the invention does not lead to plate joints corresponding to the joints at the stamping materials, and leads continuous laser holography graph-text to be stamped at the stamping materials; the installation process and the testing process of devices used by the method of the invention are easy and fast; a compression roller and the cylinder are not mutually compacted, thus leading to stable operation and good product quality.

The invention discloses a metal part interference fitting device and a fitting method. The fitting device comprises an equipment base of equipment to be fitted, a first metal part to be fitted, a second metal part to be fitted, a pressing head for pressing and fitting the first metal part, a pressing base adapted to the second metal part, a guide tool used for guiding the first metal part, and a positioning tool used for positioning the first metal part, wherein the first metal part is pressed and fitted into the second metal part; and the pressing base is arranged on the equipment base. With the adoption of the metal part interference fitting device, problems of pressing inclination, directional expansion and great difference caused by factors of equipment and the like can be greatly reduced, a pressing-in force needed by metal part interference fit is stably realized, the probability of not assembling in place is lowered, the coaxiality of an assembly part after the interference fit is greatly improved, and a stable corresponding relation between a releasing force and the pressing-in force of the assembly piece after the interference fit is greatly improved.

The first rotation lock mechanism 31 is configured such that a screw force produced by a rotation operation of an operation member 33 is transmitted to a lock member 42 via a transmission bracket 36 and a transmission rod 40. Through minimizing the length of the screw shaft 35, the transmission bracket 36, and the transmission rod 40, the position of a lock member which a screw shaft 35 is brought into contact with and the screw force is directly applied to is arranged to be closer to a user in comparison with conventional prior art. As a result, transmission loss of the screw force can be reduced, enhancing accuracy and consistency for the fixing force with respect to the table can be improved.

The invention relates to a shell assembly clamp. The shell assembly clamp comprises an upper mold core and a lower mold core arranged in a sliding mode relative to the upper mold core. The upper mold core comprises an upper mold joint face and an upper mold side face surrounding the upper mold joint face. First suction holes are formed in the upper mold side face and used for being communicated with a negative-pressure pump. An accommodation space with an opening facing the lower mold core is formed in the upper mold joint face and used for accommodating a frame. A plurality of second suction holes are formed in the bottom of the accommodation space and are communicated with the first suction holes. The lower mold core comprises a lower mold joint face which is opposite to the upper mold joint face and used for fixing a transparent panel. A plurality of through holes are formed in the lower mold joint face, and a sliding rod is arranged in each through hole in a sliding mode. The sliding rods slide out of the through holes so as to be arranged on the periphery of the transparent panel to locate the transparent panel.

The invention discloses a horizontal alignment structure of aluminum profiles, which includes a bottom plate, a gas pipe and a pressure gauge. Sealing rings are arranged on the vertical section and the horizontal section of the bottom plate. The detection block is fixed on the sealing ring, and a plurality of The air hole, the air pipe is divided into two paths, which respectively pass through the vertical section and the horizontal section of the bottom plate, and then communicate with the air hole. A column and a cylinder are installed on the horizontal section of the bottom plate, and an adjusting rod is hinged on the upper section of the column. A lower pressure block is installed on one end of the adjustment rod, the other end of the adjustment rod is hinged to the middle of the connecting rod, a fastening block is installed on one end of the connecting rod, the rubber block is set on the inclined surface, and a pressure sensor is installed on the outer wall of the rubber block. The cylinder output end is hinged with the other end of the connecting rod. By improving the existing detection equipment, the inventor only needs to adjust the working state of the cylinder to realize the rapid detection of the verticality of the aluminum profile, greatly reducing the abnormal working hours in the detection process.

The invention discloses a device for welding and fixing hydraulic-engineering pipes. The device is directly arranged on the hydraulic-engineering pipes in a sleeving manner, and an oil cylinder is provided for compression and pressure maintaining, so that the welded two pipes are fixed. The device is characterized in that two main U-shaped brackets are parallel with each other; the two ends of thetwo main U-shaped brackets are connected with two fixing base plates through fixing blocks correspondingly; the two fixing base plates are parallel with each other; sliding grooves are formed in thefixing base plates; two subsidiary U-shaped brackets are parallel with each other; the two ends of the subsidiary U-shaped brackets are each provided with a sliding block, and the sliding blocks are arranged in the sliding grooves correspondingly; the subsidiary U-shaped brackets are parallel with the main U-shaped brackets; the inner sides of the main U-shaped brackets and the inner sides of thesubsidiary U-shaped brackets are each provided with two grooves in a symmetrical manner; two threaded holes are symmetrically formed in each main U-shaped bracket and communicate with the grooves in the corresponding main U-shaped bracket correspondingly; and two threaded holes are symmetrically formed in each subsidiary U-shaped bracket and communicate with the two grooves in the corresponding subsidiary U-shaped bracket correspondingly.

The invention relates to a mixing barrel locking mechanism, an automatic locking system and an automatic mixing system, the locking mechanism is used for locking the mixing barrel in a mixing frame; the locking mechanism comprises a first driving device, a second driving device, a clamping device, a locking pin shaft and a locking screw rod, the clamping device is used for clamping or releasing the locking pin shaft, the locking screw rod penetrates through and is connected to the locking pin shaft in a threaded mode, and the first driving device is installed on the clamping device and drivesthe locking screw rod to retract or extend from the locking pin shaft; the second driving device drives the clamping device to move and clamps the locking pin shaft into or out of the mixing frame, and when the first driving device drives the locking screw rod to extend and compress the mixing barrel, the clamping device releases the locking pin shaft. According to the mixing barrel locking mechanism, the automatic locking system and the automatic mixing system, matching of the first driving device and the second driving device is utilized, the locking screw rod extends out of the locking pinshaft and compresses the mixing barrel, a constant preload on the mixing barrel is maintained, and the production accident caused by the difference of the manual tightening torque is prevented.

The invention relates to a laser holography graph-text stamping device. The device comprises a cylinder and a stamping working plate, and the stamping working plate is installed on the cylinder. The device is characterized in that: the surface of the cylinder is divided into a high temperature area the temperature of which reaches the stamping working temperature and a low temperature area the temperature of which is lower than the stamping working temperature; the positions of the joints of the two ends of the stamping working plate correspond to the low temperature area on the surface of the cylinder; the device also comprises at least two compression rollers, and the compression rollers are arranged along the circumferential direction of the cylinder and respectively pressed with the cylinder. At least two stamping working positions are formed by the device of the invention, the laser holography graph-text stamped by each stamping working position is subsequently connected, the positions of the joints of the two ends of the stamping working plate correspond to the low temperature area temperature of which is lower than the stamping working temperature on the surface of the cylinder and no plate joints corresponding to the joints are generated at the stamping materials; the device of the invention has easy and fast installation and testing processes, stable operation, good product quality, wear resistance and long service life, and the product quality can be long-term maintained.

The invention provides a jacking mechanism for a thyristor valve. The jacking mechanism comprises an upper end plate, a guiding jacking column which is arranged between the upper end plate and a thyristor string, and a disc spring group and a screw thread self-locking jacking rod which are arranged on the guiding jacking column in sequence, wherein a screw thread self-locking nut which is matched with the screw thread self-locking jacking rod is arranged on the screw thread self-locking jacking rod in a sleeving manner; and the upper end plate is connected with the screw thread self-locking jacking rod and clamped with the screw thread self-locking nut. The jacking mechanism provided by the invention can bear pressure-mounting force of higher than 200KN; the jacking mechanism is convenient to apply pressure-mounting force, stable and reliable in applying hydraulic force, simple and convenient to operate manually, and capable of satisfying vertical and concentric assembling precision requirement of the thyristor valve string; requirement on the alignment precision of the thyristor valve string is greatly improved; the jacking mechanism is capable of satisfying different pressure-mounting force requirements of the thyristor valve string of different pressure-mounting force; the assembling reliability and stability of the thyristor valve string are improved; and the electrical performance requirement of the thyristor valve for a high-voltage high-current high-capacity power electronic apparatus can be well satisfied.

The invention discloses a clamp for a sliding abrasion test. The clamp is especially suitable for stably clamping two workpieces for the test through a first clamping assembly and a second clamping assembly under the high-temperature and high-pressure water or steam environment, left horizontal, even and stable pressing force and right horizontal, even and stable pressing force which are the same in magnitude are provided for the two workpieces through a pressing assembly, a friction coefficient and an abrasion coefficient between a tube and a plate are quantitatively measured, loading control and measuring are stable, and operation is easy and convenient. The clamp is reasonable in structural design and functional design. The clamp can effectively control an infinitesimal displacement amplitude between the two workpieces in the testing process, guarantee even and stable loading under the high-temperature and high-pressure water or steam environment for a long time and meet the requirement for time of the abrasion test. The clamp is minimal in size, the volume in an autoclave is reduced, the equipment manufacturing cost and the running cost are reduced, and the problem of measurement of the friction coefficient and the abrasion coefficient of the fretting abrasion test under the high-temperature and high-pressure water or steam environment is solved.

The invention provides a rivet press-fitting device, and belongs to the technical field of riveting. The rivet press-fitting device comprises a feeding mechanism and a press-fitting mechanism. A feeding curtain of the feeding mechanism surrounds a front feeding roller and a rear feeding roller. U-shaped bearing bases are arranged on the feeding curtain at equal intervals. The middle end of a leftclamping claw of the press-fitting mechanism is hinged to the left end of a clamping claw support through a left clamping claw pin shaft, and a left pressing plate is arranged at the lower end of theleft clamping claw. A centering pressing column is arranged on the right side of the left pressing plate. The upper end of a right clamping claw is hinged to the right end of the clamping claw supportthrough a right clamping claw pin shaft. A right pressing plate is arranged at the lower end of the right clamping claw. A left finger is located on the upper side of a right finger, and the left finger and the right finger are in lap joint. The left end and the right end of a tension spring are connected with a left tension spring support and a right tension spring support correspondingly. A torsion spring and a lever pin shaft are coaxially arranged. An eccentric wheel is eccentrically arranged on an eccentric wheel support shaft, and a wheel is attached to the eccentric wheel under the action of the torsion spring. The rivet press-fitting device can continuously achieve rivet press-fitting, the press-fitting force is stable, reliability is good, and the automation degree is high.

The invention, which relates to the technical field of electrical equipment protection, discloses a leakage protector comprising a protector device, pins, a bottom plate and an elastic piece. The protector device includes a communication maintaining device, a communicating device and a locking device. The locking device includes an elastic piece pressing block and a locking lifting lever; a lock catch, a transverse fork groove and a buckle sliding way are arranged at the locking lifting lever; and a pressing rod, a buckle and a vertical fork groove are arranged at the elastic piece pressing block. A second iron core extending horizontally is arranged at the communicating device and is in a clamping fit relationship with the vertical fork groove. A first iron core extending longitudinally is arranged at the communication maintaining device and is in a clamping fit relationship with the horizontal fork groove. The elastic piece pressing block includes an upper pressing block part and a lower pressing block part. According to the invention, disconnection of the leakage protector is realized based on the cooperation relationship between mechanical structures under the circumstance thatthe failure of the coil is kept. With pressing block springs, a pressing rod arranged at the lower pressing block part applies a stable compression force to the elastic piece; and with a compressiontop block, the first iron core can move to a lowest position.

A clamping fixture of instant test table is prepared as setting guide track, at least two air-cylinders, four sets of contact paws and side pressure air-cylinder on support frame of said clamping fixture; connecting said at least two air-cylinders separately to four sets of contact paws and setting press-block on said side pressure air-cylinder.