64results about How to "Reduce fit accuracy" patented technology

An improved golf club fitting system for fitting a set of golf clubs to a player includes the steps of measuring a player's hand grip strength and selecting a representative golf club having a dead weight directly proportional to the player's grip strength. The club length and the swing weight of the representative golf club are then determined by standard testing procedures commonly used in the golf club industry. A balance index (BI) for the representative golf club is then computed by dividing the dead weight (DW) by the swing weight (SW) (DW / SW=BI) and the balance index (BI) is compared to the dead weight to determine generally corresponding values for the remaining other golf clubs in the set such that the system user can match different irons and woods to the representative golf club thereby creating an ideal matched set of golf clubs for the player.

The invention relates to a rotary valve type large torque hydraulic corner self-servo valve, which has the technical scheme that: a valve body (10) is concentrically arranged in a cylinder body cylindrical cavity (18); a valve sleeve (8) is concentrically arranged in a valve body cylindrical cavity (27); a right end of a valve plug (9) penetrates through the valve sleeve (8) so as to be concentrically arranged in the valve body cylindrical cavity (27); and an output shaft of a motor (3) is in key joint with an inner hole (46) on a left end of the valve plug (9) concentrically. Fixed stops (7) are respectively arranged on an upper part and a lower part of an inner wall of a cylinder body (4), and are in movable fit with the valve body (10); two blades (17) are fixed on an outer wall of the valve body cylindrical cavity (27), are arranged at an angle of 180 degrees, and are in movable fit with the cylinder body (4); and the fixed stops (7) and the blades (17) are in staggered arrangement with the blades (17). The rotary valve type large torque hydraulic corner self-servo valve has the characteristics of simple structure, easiness in processing, balance in stressing of the valve plug, large output torque, good dynamic property, flow gain linear, quick respond speed, and high control accuracy.

The invention relates to the technical field of vehicle engineering, and provides a Mecanum electric wheel and an omnibearing mobile platform. The Mecanum electric wheel comprises a rotating mechanism and multiple Mecanum components. The rotating mechanism comprises a stator part and a rotor part which can coaxially rotate relative to the stator part. All the Mecanum components are equidistantly and circumferentially arranged outside the side wall of the rotor part in a surrounding way with the rotating shaft of the stator part acting as the center. All the Mecanum components are fixedly connected on the rotor part. According to the Mecanum electric wheel, the whole structure is simple and the conventional wheel hub structure is replaced by the rotating mechanism so that the number of parts of the whole electric wheel can be reduced, and the matching precision required for the stator part and the rotor part is low and thus the Mecanum electric wheel is more suitable for production and processing.

The invention discloses a hermetic package method and structure of a transistor base and a transistor pin. According to the invention, when a transistor pin (2) of a transistor is fixed on a metal transistor base (1) of the transistor, and a glass insulator assembly which is composed of a welding sleeve (3) and a glass insulation layer (4) is made on the transistor pin (2) in advance; when the welding sleeve (3) is made, a circle of flange (3.1) is also made on the port of one end of the welding sleeve (3), and a transistor pin (2) with the glass insulator assembly is inserted in a transistor pin hole of the metal transistor base (1), the flange (3.1) of the welding sleeve (3) is in contact with the metal transistor base (1), and than the welding sleeve (3) and the metal transistor base (1) are welded together on the flange (3.1) of the welding sleeve (3) in a brazing manner. The hermetic package method and structure provided by the invention have the advantages of convenience for operation, good production quality, low cost, low processing accuracy requirement, high production efficiency, good product quality and the like.

The invention discloses a centrifugation electric vibration table system. The centrifugation electric vibration table system comprises a centrifuge, an electric vibration table, a power amplifier, a vibration control instrument, a cooling apparatus, a centering apparatus and an acceleration transducer, wherein a vibration table body is arranged at the tail end of an arm of the centrifuge, the power amplifier, the vibration control instrument, the cooling apparatus and the centering apparatus are arranged around the rotation center of the centrifuge and realize equipment communication with a master control chamber through a slip ring system, the acceleration transducer is arranged on the electric vibration table, and a closed-loop control circuit formed by the vibration control instrument, the power amplifier, the vibration table body, the acceleration transducer and the vibration control instrument does not pass through the slip ring system. The centrifugation electric vibration table system is safe and reliable, centrifugal forces applied to the power amplifier, the cooling apparatus and a control cabinet are the smallest, the maintenance and the debugging are convenient, and the requirement for application of the electric vibration table system on the centrifuge can be satisfied.

The invention discloses a sliding nozzle. A rotatable synchronous ring is arranged on an upper nozzle ring in a coaxial mode, and a synchronous ring inner circle connected with the upper nozzle ring in an assembling mode is of an interrupted structure in the radial direction. A first sliding block device comprises a flow guiding vane and an open shifting fork connected with the shaft end of the flow guiding vane. The shaft end of the flow guiding vane is provided with two parallel lateral planes. One end of the open shifting fork is connected with the two lateral planes in a matched mode. A second sliding block device comprises a main shifting fork assembly, one end of the main shifting fork assembly is connected with an actuator, and the other end of the main shifting fork assembly is connected with the synchronous ring through a synchronous pin. By means of the sliding nozzle, precision loss caused by fast abrasion of a line-plane friction pair in actual use is effectively avoided. Transmission precision and abrasion resistance are effectively improved. The inner circle is of an interrupted synchronous ring structure, matching area of the synchronous ring and the upper nozzle ring is reduced, and the phenomenon that the synchronous ring and the nozzle ring are clamped due to thermal deformation is effectively prevented.

The invention relates to an automatic bottle clamping, placing and discharging device for a visible foreign matter detector. The device comprises a base, a mounting seat, a mechanical arm, a door opening and closing device, a bottle discharging device and a translation device, wherein the mounting seat is fixed with the translation device; the translation device is fixed on the base; and the mechanical arm, the door opening and closing device and the bottle discharging device are connected with the mounting seat. The device is reasonable in structural design, the mechanical arm can automatically translate, clamp and place a liquor bottle, and the liquor bottle is reliably and stably clamped and loosened; the door opening and closing device automatically opens or closes the door of a bottle falling groove and is matched with the bottle discharging device to push the liquor bottle in a bottle discharging box from the bottle falling groove; and the mechanical arm, the door opening and closing device and the bottle discharging device are synchronously controlled to translate by the translation device in the whole process, bottle taking, falling and discharging are integrated, and full-automatic control is realized.

Provided is a paper currency pressing device of a counting and sorting machine. Guide rods are arranged on the outer sides of side plates on the two sides of the counting and sorting machine, and a paper currency pressing plate descends along the guide rods under self weight and presses the surface of paper currency to apply pressure on the paper currency or ascends to be in a standby mode under the action of a driving mechanism. The paper currency pressing device of the counting and sorting machine simply completes paper currency pressing work through the guide rods, the paper currency pressing plate and the driving mechanism, and is simple in structure, easy to maintain and low in cost. The requirement for the fit accuracy between the paper currency pressing plate and the guide rods is extremely low, matching is easy to achieve, sufficient fit accuracy can be available after long time working, technological requirements are effectively lowered, needed production cost and needed maintenance cost are lowered, the service life is prolonged, and working stability is high.

The invention discloses a pushing-needle type anti-theft nut developed on the basis of a rolling needle type anti-theft bolt, which is an anti-theft nut with excellent anti-theft performance and can also be used as an anti-theft nut with an anti-theft function. The pushing-needle type anti-theft nut comprises a nut body and a pushing needle, wherein the pushing needle is extruded into a groove for one-way braking in an installation process, thus the sensitivity of the anti-theft function and anti-dismounting moment are improved and anti-theft effect is ensured. The pushing-needle type anti-theft nut can be combined with a nut with an anti-theft appearance to form a secondary anti-theft nut. The pushing-needle type anti-theft nut has the advantages of being reliable in the anti-theft function, reasonably reducing matching precision of manufacture and installation, eliminating tolerance clearance and increasing the anti-dismounting torque, and is suitable for batch production and wide application.

A two-dimensional angle adjusting frame comprises an L-shaped base, an adjusting base, two two-dimensional flexible hinges, two lead screws, two nuts, steel balls, two ball pits, three positioning columns, two elastic collars, a first connecting screw, a second connecting screw, a fixing screw and a third connecting screw. The two-dimensional angle adjusting frame has the advantages of being simple in structure, low in lead screw machining requirement, free of transmission gaps, high in two-dimensional angle adjusting resolution ratio and high in rigidity.

The invention relates to an indirect type matrix control system for an electricity-oil hybrid energy conversion electric driving ship. A three-phase alternating current diesel generating set is connected with an input end AC / DC converter of an indirect type matrix converter, a three-phase alternating current propulsion motor is connected with an output end DC / AC converter of the indirect type matrix converter, a virtual direct current link clamping circuit of the indirect type matrix converter is connected with a both-way PWM switch, the both-way PWM switch is connected with a power storage battery pack, a switch commutation controller is connected with switch control circuits of the input end AC / DC converter and the output end DC / AC converter of the indirect type matrix converter, a direct torque control frequency converter is connected with the switch commutation controller, the three-phase alternating current diesel generating set, the three-phase alternating current propulsion motor and a speed sensor, and a charger is connected with the power storage battery pack. By means of the indirect type matrix control system, efficient connection and parallel operation of alternating currents and direct currents can be achieved, and efficient and energy-saving frequency-conversion stepless speed-regulation control over the propulsion motor can be achieved.

The invention discloses a picture frame structure of a heavy-calibre combined lens, which comprises a picture frame, a space ring, a gasket and a threaded ring, wherein regulating screw structures are additionally arranged on the picture frame. According to the invention, by using the symmetric regulating screw structures, the position of one lens in the combined lens is regulated, the processing requirement of center deviation of an optical element and the matching precision of a mechanical member are reduced, an optical system is more conveniently debugged, and an ideal imaging quality is reached. The picture frame structure can be widely applied to optical system debugging, system imaging and system detection of a heavy-calibre imaging system in optical engineering and optical experimental devices, and has strong practicability.

The invention provides an axial double-floating structure of a scroll compressor. The scroll compressor adopts a static-scroll axial floating structure or a movable-scroll axial floating structure, wherein sealing grooves are simultaneously formed at tooth tips of a movable scroll and a static scroll; sealing rings are put into the sealing grooves; the tooth tips and tooth bottoms of the movable scroll are respectively in clearance fit with tooth bottoms and the tooth tips of the static scroll; and clearances are larger than the elongation amount of teeth of the scrolls, which is caused due to thermal expansion, and smaller than fit clearances between the tooth tips and the tooth bottoms of the static and the movable scrolls of a compressor which does not float and adopts tooth tip sealing ring structures of the movable and the static scrolls. Compared with the prior art, the axial double-floating structure has the advantages that leakage at the tooth tips and the tooth bottoms of the movable and the static scrolls can be effectively reduced, the tooth height fitting accuracy of the movable and the static scrolls can be further lowered, and the processing economy of the scrolls is improved.

The invention discloses a rotary type multi-nozzle proportional spray head. The rotary type multi-nozzle proportional spray head comprises a water inlet pipe, wherein the rear end of the water inlet pipe is connected with a motor; the motor is in transmission connection with a rotary end cover arranged at the front end port of the water inlet pipe through a transmission shaft arranged in the water inlet pipe; the rotary end cover is provided with a radial extending part; the radial extending part is in transmission connection with a sliding support sleeve arranged on the periphery of the front end part of the water inlet pipe in a sleeving manner through a connecting piece; a plurality of water outlet holes are formed in the pipe wall of the sliding support sleeve; the water outlet holes are connected to nozzles through corresponding guide pipes; a water outlet is formed in the pipe wall of the front end part of the water inlet pipe; the water outlet is communicated with the water outlet hole rotating to the position of the water outlet; a stop step raised along the radial direction is arranged on the port of the water inlet pipe between the radial extending part of the rotary end cover and the sliding support sleeve; and a water inlet is formed in the water inlet pipe between the sliding support sleeve and the motor. According to the rotary type multi-nozzle proportional spray head disclosed by the invention, the external volume can be decreased, the matching precision and processing cost are reduced, and the transmission is smooth and reliable.

The present invention discloses an engine piston rod measuring tool. The engine piston rod measuring tool comprises an adjusting core shaft extending along a horizontal direction, one end of the adjusting core shaft is fixedly connected with a workbench while the other end is connected in a sliding manner with an adjusting sliding block, the adjusting sliding block is provided with an adjusting stage for height adjustment in a vertical direction, an adjusting disc is connected in a rotating manner onto the workbench through a rotating part, one end of a driving swing arm is hinged to the adjusting disc while the other end is hinged to a guide swing arm, a guide press plate fixedly connected onto the workbench is provided with at least two sliding chutes along a radial direction of the guide press plate, the adjusting disc rotates and drives clamping posts disposed on the guide swing arm to be connected in a sliding manner into the respective sliding chutes, the end face of a large hole of a piston rod is attached to the guide press plate, the inner wall of the large hole is abutted against the clamping posts, and the end face of a small hole of the piston rod is attached to the adjusting stage. With adoption of the technical scheme, the coordinating precision is reduced, the processing difficulty is lowered, and universality of the measuring tool to piston rods of different types is realized.

The invention provides a novel fabricated building system and further provides an assembly method of the novel fabricated building system. The novel fabricated building system comprises a prefabricated foundation, a structural supporting frame, at least one prefabricated floor and a plurality of wallboards. The structural supporting frame comprises prefabricated reinforcing columns and prefabricated beams, and the prefabricated reinforcing columns are connected with the prefabricated foundation. The prefabricated beams comprise main beams and inserting pieces, and the main beams are connectedwith the prefabricated reinforcing columns. The inserting pieces are connected with the main beams, the prefabricated floors and the main beams are connected through prefabricated connecting pieces and / or adhesives, and every two adjacent wallboards are mutually spliced or glued. The wallboards and the prefabricated reinforcing columns are connected through anchoring steel structures, inserting parts are arranged on the wallboards, and the inserting parts and the inserting pieces are connected in an inserted mode and fixed through adhesives. The wallboards are light wallboards based on graphene and nonmetal foaming and have the advantages of corrosion resistance, heat preservation, heat insulation, fire resistance, water resistance, impermeability, earthquake resistance, cracking resistance, low weight, high strength and the like. The assembled construction method adopted by the building system can shorten the construction period and is safe and efficient.

The invention provides a connecting structure for a wardrobe side plate and a wall. The connecting structure comprises a wardrobe side plate and a wall surface both perpendicular to the ground. A seam is formed between the wardrobe side plate and the wall surface. The connecting structure further comprises an 'H'-shaped member with a large-opening side portion and a small-opening side portion, wherein the large-opening side portion and the small-opening side portion are integrally combined. The small-opening side portion is used for clamping the wardrobe side plate, the smallest opening of the small-opening side portion is slightly smaller than the thickness of the wardrobe side plate, and a plurality of rubber protrusions are arranged on the inner wall of the small-opening side portion contacting with the wardrobe side plate and coated by adhesives. The large-opening side portion is made of soft materials and used for contacting with the wall surface. When the large-opening side portion contacts with the wall surface, the soft portion tightly clings to the wall. The connecting structure can be in batch production, is low in manufacturing cost and convenient and quick to mount and construct and is tidy and attractive in appearance after mounted, and the seam between a wardrobe and the wall can be reduced to the greatest extent.

The invention discloses an ultrasound-assisted cutting vibration system which comprises an ultrasonic transducer, an insulation sleeve and an overall superhard cutting tool bar. The insulation sleeveand the overall superhard cutting tool bar are located at the front end of an ultrasonic amplitude transformer; and the front end of the ultrasonic amplitude transformer and the overall superhard cutting tool bar are connected in a hot-charging interference fit way. According to the ultrasound-assisted cutting vibration system provided by the invention, the overall superhard cutting tool bar for shaping and the ultrasonic amplitude transformer for shaping are connected in the hot-charging interference fit way, so that the problems that stress concentration exists in the connecting part, and anoverall superhard cutting tool is easy to break or fragment under high-frequency or large-amplitude ultrasonic vibration are solved. Meanwhile, only one-time fitting-surface connection is adopted, sothat the assembling accuracy of the cutting tool is high, and the high-precision reliable connection for the high-frequency or large-amplitude ultrasonic cutting processing of the overall superhard cutting tool bar is realized.

The invention discloses a cover opening mechanism for an electric kettle. The cover opening mechanism comprises a handle base (2), a kettle cover (4), a handle cover (14), a kettle cover connecting base (3), a latching rocker arm (13) and a cover opening button (12), wherein the kettle cover connecting base (3) is fixed on the handle base (2), the latching rocker arm (13) is hinged on the kettle cover connecting base (3) through a hinging shaft (11) of the latching rocker arm (13), the hinging shaft (11) of the latching rocker arm (13) is provided with a rocker arm torsional spring (16), the cover opening button (12) is arranged on the handle cover (14) and corresponds to the latching rocker arm (13) in the vertical direction, a connection part of the kettle cover (4) is hinged on the kettle cover connecting base (3) through a kettle cover hinging shaft (7), the kettle cover hinging shaft (7) is provided with a kettle cover torsional spring (15), the connection part of the kettle cover (4) is provided with an upper kettle cover leaning head (9), the latching rocker arm (13) is provided with a locking shoulder (10), and in a closed state, the locking shoulder (10) props against the upper kettle cover leaning head (9). Due to the structure, the cover opening mechanism has the characteristics of simple and reasonable structure, convenience in operation and use, stable and reliable work, good opening effect, long service life and the like.

The invention discloses a hub bearing unit and a stop ring. The stop ring comprises a connecting portion, a first supporting portion and a second supporting portion, the connecting portion is integrally of a closed annular structure, the first supporting portion is integrally of an annular structure and is fixedly connected with the axial first end of the connecting portion, the diameter of the outer ring surface of the first supporting portion is larger than that of the outer ring surface of the connecting portion, the second supporting portion is integrally of an annular structure and is fixedly connected with the axial second end of the connecting portion, and the diameter of the outer ring surface of the second supporting portion is larger than that of the outer ring surface of the connecting portion. According to the stop ring provided by the embodiment, the deformation resistance is relatively high, change, cause by assembly, of the inner diameter size of the stop ring can be avoided, so that it is ensured that under the situation that the stop ring is matched with a hub bearing, the change, caused by assembly, of the inner diameter of the stop ring can be avoided, then the assembled stop ring protrudes out of the inner diameter portion of the hub bearing, and interference on shaft pipe installation is avoided.

The invention belongs to the technical field of energy-conservation and environment-friendly equipment and particularly relates to a float type composite powder plunger device. The float type composite powder plunger device comprises a hoisting mechanism capable of achieving lifting liquid conveying, a lifting mechanism used for hoisting and a gas-liquid replacement acting mechanism providing powder for the hoisting mechanism and the lifting mechanism. The upward hoisting part of the hoisting mechanism is connected with the upward lifting part of the lifting mechanism through a power transmission chain. The gas-liquid replacement acting mechanism is connected with the hoisting mechanism and the lifting mechanism through gas exchange systems correspondingly. Floating force generated in thegas-liquid replacement process is used for providing power for the hoisting mechanism and the lifting mechanism. The hoisting mechanism is arranged in a high-water-level area, and the lifting mechanism is located above a low-water-level area. The float type composite power plunger device is a combination body of a float and a plunger, liquid conveying is achieved through the gas-liquid replacementacting mechanism and the water level difference, a large amount of energy does not need to be consumed in the liquid conveying process, and only an extremely small part of electric energy is needed for providing electricity for an electrical element. Structural design is reasonable, energy conservation and environment friendliness are achieved, and the device can be easily used and popularized ina large scale.

The invention discloses a mold for a large-size uniparted hyperboloid injection molding part. The mold comprises a front template, a hot-runner plate, a mold A and a mold B which are arranged from top to bottom sequentially, wherein pad bearing steps bulged on the edge of a cavity of the mold A are formed on a forming surface of the mold A, runner slots extending to the cavity are formed in the pad bearing steps, and hot sprues are arranged on the hot-runner plate and penetrate through the mold A to extend to the runner slots; a first core-pulling slider and a second core-pulling slider which are horizontally and coaxially butted are arranged between the mold A and the mold B, first slide rails are arranged on one side of the mold B and extend in the axial direction, first slider pieces are fixedly mounted on the mold B, and the first core-pulling slider can outwards slide out of the mold along the first slide rails; and second slide rails are arranged on the opposite side of the mold B and extend in the axial direction, second slide rail parts are fixedly mounted on the mold B, and the second core-pulling slider can outwards slide out of the mold along the second slide rails. The mold is used for injection molding of the large-size uniparted hyperboloid injection molding part, the problem about coaxiality of the core-pulling sliders and the injection molding part when the core-pulling sliders perform core pulling can be effectively solved, and the injection molding quality of products is guaranteed.

The improved finned heat sink with composite steel-aluminum tubes includes heat radiating finned tubes, and upper collecting box and lower connecting box connected to the heat radiating finned tubes. The heat radiating finned tube includes one aluminum tube, aluminum fins around the aluminum tube and one steel tube fitted closely inside the aluminum tube. The steel tubes are welded to the upper collecting box and the lower connecting box, and the aluminum tube has at least one longitudinal slot for enclasping the steel tube tightly through elastic deformation. The present invention has simple steel tube-aluminum tube combining process and lowered production cost of the finned heat sink with composite steel-aluminum tubes.

The invention relates to the field of valve machining, in particular to a valve seat grinding, clamping and moving device. The device comprises a lathe bed, a valve seat clamping mechanism and a valveseat clamping and moving mechanism, wherein the valve seat clamping mechanism comprises a transmission main shaft, a transmission shaft, a clamping mechanism base and a spring; the transmission mainshaft penetrates through the clamping mechanism base, a fixing groove is formed in the transmission main shaft, the transmission shaft is coaxial with the transmission main shaft, and a rectangular linear bearing is arranged between the transmission shaft and the transmission main shaft; the upper end of the transmission shaft is connected with a self-centering chuck; the spring is positioned between the transmission main shaft and the self-centering chuck; the valve seat clamping and moving mechanism comprises a lead screw, and the lead screw penetrates through the clamping mechanism base andthe lathe bed and is in threaded fit with the clamping mechanism base; a guide groove is formed in the lathe bed in the axial direction of the transmission shaft; and the clamping mechanism base is connected with the guide groove in a sliding manner. The valve seat grinding, clamping and moving device disclosed by the invention can drive a valve seat to move, so that the workload of workers is reduced, and the machining efficiency is improved.

The present invention discloses a transmission mechanism for a 40.5kV switch cabinet isolation switch. The mechanism comprises an insulation screw, the insulation screw is sleeved with a ground contact, a movable contact support and a static contact which are fixed on a switch cabinet in order in the axial direction, the movable contact support is provided with a through hole configured to allow the insulation screw to pass through, the through hole is internally provided with a movable contact being in threaded connection with the insulation screw, one ends, close to the movable contact support, of the ground contact and the static contact are provided with slotted holes holding the movable contact, the movable contact is moved left and right into the slotted holes with the rotation of the insulation screw, the length of the movable contact is smaller than a distance between the static contact and the ground contact, and the length of the movable contact is larger than a distance between the static contact and the movable contact support and a distance between the ground contact and the movable contact support. The transmission mechanism is simple in structure, convenient to transport, install and operate, high in reliability and free of maintenance and little in maintenance.

The invention provides a novel assembly type building system with a concrete structure. The novel assembly type building system comprises a prefabricated foundation, a structural supporting frame, a prefabricated floor and a plurality of wall plates; the structural supporting frame comprises concrete prefabricated reinforcing columns and prefabricated beams; the concrete prefabricated reinforcingcolumns are connected with the prefabricated foundation; the prefabricated beams comprise concrete main beams and inserting pieces; the concrete main beams are connected with the concrete prefabricated reinforcing columns; the inserting pieces and the prefabricated floor are connected with the concrete main beams; the wall plates and the concrete prefabricated reinforcing columns are connected through anchoring steel structures; the wall plates are provided with inserting parts; the inserting parts and the inserting pieces are in inserted connection and fixed in a cast-in-place mode. The wallplates are foamed light wall plates based on graphene and nonmetal and have the excellent advantages of corrosion resistant, heat preservation and insulation, fire prevention, water prevention, anti-permeability, anti-earthquake, anti-crack, small weight, high strength and the like. According to the assembly type construction mode adopted by the building system, the construction period can be shortened, and safety and high efficiency are achieved. The invention further provides an assembly method of the novel assembly type building system with the concrete structure.

Provided is an embrittling splitting and clamping device used for a connecting rod cap and a connecting rod body with high strength and toughness steel. The embrittling splitting and clamping device used for the connecting rod cap and the connecting rod body with high strength and toughness steel is characterized by comprising a base plate, a positioning sleeve, a positioning pin, a fixed taper-lock, fixed clamping chucks, a slipway, a movable taper-lock, an expansion rod, movable clamping chucks and a reset mechanism, wherein the positioning sleeve is longitudinally arranged on the upper surface of the base plate; the positioning pin is arranged on the positioning sleeve and is provided with the periphery surface which is sleeved with a connection rod smaller head; the slipway is arranged on the base plate in a horizontally moving mode; a first wedge surface is formed in the interior of the movable taper-lock and formed in the slipway, the movable taper-lock is matched with the fixed taper-lock to form a taper-lock assembly, and the taper-lock assembly is longitudinally hollow and is provided with the periphery surface which is sleeved with a positioning connection rod larger head; the expansion rod is longitudinally arranged in the taper-lock assembly and provided with a second wedge surface which is matched with the first wedge surface of the movable taper-lock. Compared with the prior art, the embrittling splitting and clamping device used for the connecting rod cap and the connecting rod body with high strength and toughness steel has the advantages that the whole clamping device structure is simple in structure, easy to manufacture and relatively low in cost.