30results about How to "Meet the requirements of parallelism" patented technology

The invention relates to a preparation device of a rock cracked specimen, in particular to a preparation device of a single-cracked rock specimen filled with a binding material with a certain thickness. The preparation device comprises a base, an upper movable seat, a lower rock core fixing lantern ring, an upper rock core fixing lantern ring, a threaded spindle, an adjusting screw cap and a fastening screw cap; the concentricity of an upper rock core and a lower rock core arranged in the upper rock core fixing lantern ring and the lower rock core fixing lantern ring can be ensured through adjusting the position of the spindle relative to a through groove of the base and the position of the upper rock core fixing lantern ring relative to a horizontal through groove; the distance between the upper rock core and the lower rock core is controlled through the adjusting screw cap and the fastening screw cap; and meanwhile, the thickness of a binding layer between the upper rock core and the lower rock core is ensured so that the upper rock core and the lower rock core are coupled and butt-jointed to form a standard single-cracked rock specimen. The preparation device of the single-cracked rock specimen in the invention is easy to manufacture, simple in operation, strong in practicability and capable of being widely used for preparing single-cracked rock specimens.

The invention provides a method capable of adjusting the position of a suspended beam screw rod to a guide rail. The method includes the steps of aligning a special rack on the guide rail screw rod with the known accuracy, reading data on a data acquisition unit and zero clearing, arranging the adjustment rack on the parallel guide rail to be detected, clamping screw rod nut through a clamping device, contacting the screw rod nut with a pressure sensor, and displaying a pressure value of a contact point of a clamping device mechanical arm and the screw rod in real time by being connected with the data acquisition unit. The special rack is capable of slowly moving on the guide rail through rotation of the screw rod to achieve automatic detection. A dial indicator which is arranged on the special rack is capable of being used for detecting, when the screw rod is arranged or positional accuracy of the screw rod is periodically detected. The method capable of adjusting the position of the suspended beam screw rod to the guide rail has the advantages of being simple in structure, reasonable in design, high in installation accuracy, capable of automatically detecting, integral in installation and detection, easy to operate and convenient to handle. The invention further provides the special rack capable of adjusting the position of the suspended beam screw rod to the guide rail.

The embodiment of the invention discloses a double-camera system, a double-camera adjusting method and a terminal. The double-camera system is applied to the terminal, and a shell of the terminal is provided with a cavity area. The double-camera system comprises two turnover components, two cameras, a laser ranging part, a processor and a motor, wherein the processor generates a driving instruction, the motor receiving the driving instruction drives the turnover components to rotate, and the two cameras rotate along with the turnover components, so that by rotating the turnover components, the two front-mounted cameras or the two rear-mounted cameras or one front-mounted camera and one rear-mounted camera are obtained; the laser ranging part transmits the distance value between a laser transmitting point and a laser receiving point to the processor, the processor judges whether or not the two cameras meet the requirement of the parallelism degree of the optical axis according to the distance value, if not, the processor generates the driving instruction, and the motor receiving the driving instruction drives the turnover components, so that the two cameras meet the requirement of the parallelism degree of the optical axis, and the definition of shot images is improved.

The invention discloses a nozzle trolley structure of a digital printing machine, which includes a back plate, a casing and a nozzle. The casing includes two side plates and a bottom plate. The nozzle is fixed on the bottom plate. The adjusting plate, the adjusting plate includes a first connecting plate and a second connecting plate arranged at right angles, the first connecting plate and the side plate are hingedly connected and the casing can rotate around the hinge point, and the casing is provided with a The casing is fixed on the limit piece on the adjusting plate, and a moving structure is arranged between the second connecting plate and the back plate to drive the adjusting plate to move in the vertical direction, and at the same time discloses a digital printing machine with the nozzle trolley structure The purpose of the present invention is to provide a digital printing machine nozzle carriage structure and a high-precision digital printer that can improve installation efficiency while ensuring installation efficiency.

The invention relates to a spray head frame positioning device of a continuous ink-jet printing production line, and a control method thereof. The device comprises a left crossbeam lifting plate, a fixed plate, a right crossbeam lifting plate and a transmission mechanism. The device is characterized in that the left crossbeam lifting plate is provided with a fixed block A and a fixed block B, and the fixed block A and the fixed block B are respectively provided with a steel ball A and a steel ball B; the right crossbeam lifting plate is provided with a fixed block C, and the fixed block C is provided with a steel ball C; and the transmission mechanism comprises a nut, a leading screw, a worm and gear, a shaft coupling and a servo motor. The invention provides technical means of integral position adjustment of a large-span spray head frame; the parallelism requirement between a spray head and a fabric surface is effectively met, and the printing precision is ensured; in addition, manual adjustment is avoided, and the production efficiency is improved.

The invention discloses a blue-ray disc die assembly, which comprises a mounting base, a lower mold plate and an upper mold plate. The mounting base is provided with a level mounting surface; the lower mold plate is arranged on the mounting surface; the lower mold plate is provided with a level lower laminating surface; the upper mold plate is provided with a level upper laminating surface opposite to the lower laminating surface; the center of the lower laminating surface protrudes a positioning column; and the upper laminating surface facing the positioning column dents inwards to form a positioning hole. The blue-ray disc die assembly also comprises an elastic circular gasket, wherein the center of the gasket is provided with a mounting hole; the positioning column passes through the mounting hole of the gasket to make the gasket borne on the lower laminating surface; and an outer ring of the gasket is provided with a protruding ring protruding the faced upper laminating surface. The blue-ray disc die assembly can automatically adjust an upper mold and a lower mold to reach micron-sized parallelism in the process of pressing dies.

The invention relates to an automatic grinding device. The automatic grinding device comprises two mutually-parallel grinding tool bodies, a rotary grinding cylinder, a linear grinding cylinder and a frame, wherein the rotary grinding cylinder is used for controlli8ng the grinding tool bodies to rotate; the linear grinding cylinder is used for controlling the grinding tool bodies to perform rectilinear motion; the frame is connected with the grinding tool bodies, the rotary grinding cylinder and the linear grinding cylinder; the automatic grinding device also comprises a bearing seat and a hoisting device, wherein the bearing seat is used for supporting the grinding tool bodies, and the hoisting device is used for hoisting; two frames are respectively mounted at the two ends of the two parallel grinding tool bodies; the other side of one frame is connected with the linear grinding cylinder. The grinding tool is capable of realizing automatic grinding on 20 frame holes of a rolling machine by rotation motion and rectilinear motion of the grinding tool bodies and is also capable of guaranteeing the requirements on toughness and parallelism degree of the frame holes.

The invention relates to a manufacturing method for a simulation test bed altitude chamber. The method comprises the following steps of assembly installing of a chamber body and a rear sealing head, strengthening ring assembly, assembling and welding of a door frame, test platform fixing, pre-installing adjusting of a hinge assembly, trepanning, welding of a door frame assembly and the chamber body and test platform chamber entry. According to the manufacturing method, accurate trepanning is achieved, and accurate assembling with the door frame is achieved. It is guaranteed that the test platform meets the requirement for the depth of parallelism. The method can be popularized to manufacturing of similar products.

The invention discloses a device for adjusting installing parallelism and perpendicularity of components on a wire cutting machine. The device is used for installing first components to be installed and second components to be installed on the wire cutting machine. Adjusting screw seats with first spherical surfaces are arranged on the first components, adjusting screws with second spherical surfaces which are matched with the first spherical surfaces are arranged on the second components, then adjusting washer sets with spherical matching surfaces are arranged, the adjusting washer sets, the adjusting screws and the adjusting screw seats are compressed through compression screws, and the matching state of the first spherical surfaces and the second spherical surfaces is adjusted in the installing process, so that the positions of the first components and the positions of the second components are correspondingly adjusted to meet the requirements for the installing parallelism and the perpendicularity. The device is simple in structure. The installing surfaces of the components to be installed do not need to be secondarily or repeatedly machined in the installing process, the installing accuracy and the installing efficiency of the components to be installed on the wire cutting machine are improved, and labor intensity of relevant operators is also reduced.

The invention provides a folding roof bolter capable of carrying out circumferential rotation for multi-hole construction. The folding roof bolter comprises a base part, circumferential holing parts and two-stage folding parts. The circumferential holing parts are located on two sides of the base part. The two-stage folding parts are located on the other two sides of the base part. Each circumferential holing part is provided with a holing part and an axial rotation mechanism, wherein the axial rotation mechanism is used for making the circumferential holing part to axially rotate to be at thesame horizontal plane as the two-stage folding parts, and the holing part is used for smooth feeding drilling in the horizontal plane or a horizontal plane where the circumferential holing part is located on before or after axial rotation. The two-stage folding part is used for implementing inclined drilling. With the folding roof bolter capable of carrying out circumferential rotation for multi-hole construction, it is solved that a drilling equipment in the prior art cannot make anchor holes be in the same straight line, and cannot meet the requirements of construction for large, medium, small and narrow roadways either.

The invention relates to the technical field of machining, and discloses an assembly machining method. The assembly machining method comprises the steps that S1, a first part is machined, so that a first mounting surface and a second mounting surface are formed on the first part, and a first preset machining allowance is reserved on the second mounting surface; S2, a second part is machined, and a third mounting surface is formed on the second part; S3, the second part is assembled on the first part through the first mounting surface; and S4, the second mounting surface is machined, so that the second mounting surface and the third mounting surface meet the parallelism requirement, and the second mounting surface and the third mounting surface are used for mounting a third part. By means of the structure, the assembly machining method can meet the requirement for the parallelism of the installation surfaces so as to achieve the installation precision, and the machining cost can be reduced.

The invention discloses a special explosion-proof motor for a plunger pump and a process. The explosion-proof motor comprises a motor stator, a motor rotor and a base, the motor stator is arranged inthe base, and the motor rotor is arranged at the inner side of the motor stator. The explosion-proof motor also comprises a front shaft supporting structure and a machine base bottom foot plate. A motor shaft is arranged in the motor rotor and is sleeved with a belt wheel, and the front end of the motor shaft penetrates out of the front end of the belt wheel and then is connected with the front shaft supporting structure. According to the machining process of the explosion-proof motor, the base bottom foot plate of the explosion-proof motor is machined through a vertical milling machine. According to the explosion-proof motor, the unique front shaft supporting structure is newly added, so that the stress form of the motor shaft is changed into a simply supported beam from an existing cantilever beam, the stress of the motor shaft is reasonable, the overload capacity is enhanced, and the quality is guaranteed. Under the auxiliary effect of an auxiliary machining device, the upper end face and the lower end face of the machine base bottom foot plate are machined through the vertical milling machine so as to meet the requirement for parallelism of the upper end face and the lower endface of the machine base bottom foot plate.

The invention discloses a die-casting mold structure and die-casting method capable of achieving high parallelism. The die-casting mold structure comprises a fixed mold, a movable mold and a core inserting structure; a mold cavity is formed between the fixed mold and the movable mold, the mold cavity comprises a fixed mold mold cavity formed in the fixed mold and a movable mold mold cavity formedin the movable mold, the fixed mold mold cavity is internally provided with a fixed mold protruding block, and the fixed mold protruding block is provided with a plurality of fixed mold fixing holes;the movable mold mold cavity is internally provided with a movable mold protruding block, and a plurality of movable mold fixing holes matched with the plurality of fixed mold fixing holes are formedin the movable mold protruding block; a core pulling mechanism is arranged on the side surface of the fixed mold and the movable mold, the core pulling mechanism comprises a plurality of sliding blockmold cores, the sliding block mold cores, the fixed mold fixing holes and the movable mold fixing holes are in one-to-one correspondence, and the plurality of sliding block mold cores are inserted into the corresponding fixed mold fixing holes and the corresponding movable mold fixing holes correspondingly. According to the die-casting mold structure and the die-casting method capable of achieving the high parallelism, the movable mold protruding block and the fixed mold protruding block are combined and the sliding block mold cores are taken to be combined in a penetrating, locking and matching manner, so that the product parallelism requirement which originally needs to be guaranteed through machining is reached.

The invention discloses an assembly method and assembly fixture for a pitching frame component. The pitching frame component comprises a pitching frame, a gyroplatform, a first rocker arm and a secondrocker arm. The assembly method comprises the following steps of: firstly arranging the first rocker arm and the second rocker arm on the gyroplatform by virtue of the assembly fixture; then arranging the gyroplatform on the assembly fixture; adjusting the relative position of the rocker arms and the gyroplatform in the assembly fixture, and threshing a taper pin for positioning; disassembling the first rocker arm, the second rocker arm and the gyroplatform for cleaning; and finally loading the gyroplatform in the pitching frame, and loading the first rocker arm and the second rocker arm in the gyroplatform according to threshing holes, thereby completing assembly. Compared with a conventional assembly method, the assembly method for the pitching frame component has the advantages that bychanging the assembly reference and adjusting the assembly sequence, the assembly operation is simplified, the assembly difficulty is reduced, and the assembly accuracy and the assembly efficiency are improved.

The invention relates to a sterile filling device. The sterile filling device comprises a filling valve and a stop valve, wherein the filling valve is connected with a first power mechanism, the stopvalve is connected with a second power mechanism, and the filling valve is connected with a shell of the second power mechanism; the filling valve is provided with a feeding port; the filling valve communicates with a filling head matched with a bag mouth; and the stop valve comprises a first valve rod used for opening and closing the filling head, wherein the first valve rod is movably connectedwith the filling head, the first valve rod is connected with a second valve rod, and the second valve rod is matched with the second power mechanism in arrangement. Through adopting the technical scheme, machining precision requirements of the stop valve during production is lowered, so that the filling valve and the stop valve are easy to machine, and the corresponding production cost is reduced;the defect that a traditional filling valve is high in requirement for straightness in the stop valve machining process is overcome, and convenient installation is realized; and meanwhile, an effectof reducing the production cost is achieved, thereby achieving sterile filling.