35results about How to "Guaranteed coaxial" patented technology

The invention relates to the field of welding equipment. The invention discloses automatic welding equipment for a single crystal furnace and a using method of the automatic welding equipment, and aims to solve the problem that after the equipment is used for welding the external joint of a furnace body and a top accessory, a clamp needs to be unlocked, and then the inner wall of the furnace body and the inner wall of the top accessory are welded. The welding device is composed of an inner side supporting and welding mechanism and an outer side supporting and welding mechanism. According to the automatic welding equipment for the single crystal furnace and the using method thereof, the lower sleeve is driven to move downwards and abut against the top face of the hollow rotating disc through extension of the air cylinder, the sliding block is driven to move downwards and slide in the sliding groove along with continuous extension of the air cylinder, and then the bearing is driven to move downwards; a first spring telescopic rod at the lower end of a pressing rod is pushed through downward movement of a bearing to extrude a hinged plate to deflect, then an L-shaped clamping plate is pushed to move towards the side away from the pressing rod and is internally supported on the inner walls of the ring and the single crystal furnace body, it is guaranteed that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, and follow-up welding is facilitated.

The invention relates to the technical field of welding, and discloses an automobile part welding machining device which comprises a fixing support, a control motor, a rotating shaft, a bevel gear transmission set, a rotating workbench, a control air cylinder, a lifting frame, a positioning assembly and the like. A control motor is installed in the fixing support, a rotating shaft is rotationally connected into the fixing support, the rotating shaft is connected with an output shaft of the control motor through a bevel gear transmission set, the control motor drives the rotating shaft to rotate through the bevel gear transmission set, and a rotating workbench is fixedly connected to the rotating shaft. According to the device, processes such as raw material positioning, raw material conveying and spin welding are produced through an automatic flow line, four sets of supporting frames are arranged on the rotary workbench, a four-station machining platform is formed, a plurality of procedures are carried out synchronously, the labor cost is saved, meanwhile, the working efficiency is improved, and the basin stand and the guide ring are limited by the positioning assembly; when the basin stand and the guide ring are welded together through the welding mechanism, the guide ring or the basin stand can be prevented from deviating, and the welding effect is guaranteed.

The utility model relates to the technical field of resistance wires, in particular to a resistance wire clamping device, which comprises a bottom plate, a hollow shaft, a driving component, a movable plate, a guide wheel and a support wheel, the bottom plate is connected with a vertical plate, and the vertical plate is rotatably connected with a turntable A. The hollow shaft is connected with the rotating disc A. The hollow shaft is provided with a plurality of storage grooves communicating with the interior of the hollow shaft, and clamping blocks are slidably connected into the storage grooves. The driving assembly is connected with the hollow shaft and is in driving connection with the clamping blocks. The movable plate is slidably connected with the bottom plate and rotationally connected with the rotary disc B. The hollow shaft penetrates through the rotary disc B and slides with the rotary disc B. A tensioning assembly A used for pushing the movable plate to the rotary disc A is arranged on the bottom plate. And the two guide wheels are rotationally connected with the vertical plate. The supporting wheel is rotationally connected with the vertical plate, an upper pressing wheel matched with the supporting wheel is arranged on the vertical plate, and a tensioning assembly B used for pushing the upper pressing wheel downwards is arranged on the vertical plate. When the resistance wire winding rollers with different inner diameters are clamped, the resistance wire winding rollers can be effectively prevented from jumping, and the linear output of the resistance wire is stable.

The present invention relates to an optical wire feeding device for laser additive manufacturing, which comprises a sleeve, a wire feeding pipeline and an optical path unit, wherein the optical path unit comprises a laser connector, a beam splitter module, a reflector module, an optical path steering module and a focusing mirror module; the wire feeding pipeline comprises a wire feeding tube and a wire feeding nozzle, which successively passes through the optical path steering module and the focusing mirror module from top to bottom and avoids the reflector module to reflect the optical path to the optical path steering module, wherein the center of the focus formed by the focusing mirror module is located on the center line of the wire feeding nozzle, and the focus is located below the wire outlet end of the wire feeding nozzle and is arranged close to the wire outlet end. The present invention changes the optical path so that the optical path and the wire feeding pipeline do not interfere with each other, and the laser focus is colinear with the center of the wire feeding pipeline, and the wire is prevented from being deflected in the wire delivered from the wire feeding nozzle, and the optical mirror is cooled to prevent the optical mirror from deforming and changing the optical path, thereby ensuring that the light beam and the wire are coaxial when entering the molten pool, and improving the hot melt forming accuracy.

The invention provides a hydrophone sensing optical cable automatic fiber winding device which comprises an equipment platform, a clamping and conveying assembly and a gluing assembly are arranged on the equipment platform, an optical fiber winding assembly is arranged between the clamping and conveying assembly and the gluing assembly, one end of an elastic body is provided with the clamping and conveying assembly, and the other end of the elastic body is arranged at the optical fiber winding assembly. A fiber releasing assembly is further arranged on the equipment platform, a guide wheel system is arranged between the fiber releasing assembly and the optical fiber winding assembly, the elastic body moves in the length direction, the optical fiber starts from the fiber releasing assembly, passes through the guide wheel system, reaches the optical fiber winding assembly and is wound on the outer wall of the elastic body, and the problem that the production efficiency of the hydrophone sensing optical cable is low is solved.

The present invention discloses a pressure vessel welding butt joint device, which relates to the field of welding technology and comprises a welding base, wherein a fixed seat and a movable seat are sequentially arranged along a straight line on the welding base, end fixing devices are rotatably arranged on the fixed seat and the movable seat, and an extension clamping device is arranged on the opposite sides of the two end fixing devices. The present invention inserts the pressure vessel into the corresponding end fixing device, adjusts the length by the extension clamping device, and aligns the pressure vessel by squeezing the end of the pressure vessel, thereby ensuring that the axes of the two pressure vessels are parallel, and then squeezes the peripheral side of the pressure vessel by the end fixing device, so that the pressure vessel moves to the center of the end fixing device and is fixed, thereby ensuring that the two pressure vessels are coaxial, and there is no need to repeatedly adjust the fixed position of the pressure vessel, and then the movable seat is moved to the point where the ends of the two pressure vessels are in contact and stop, thereby ensuring the welding quality and welding efficiency.

The utility model provides a cigarette packer strip package forming wheel dismounting tool for carrying out dismounting to strip package forming wheel end screw, and strip package forming wheel end has screw installation counterbore for screw head sinking, and the dismounting tool includes lengthened rod, force bar, lengthened rod includes lengthened rod body, and one end of lengthened rod body is equipped with the outer hexagonal head that is in line with the internal hexagon hole of screw head, and the other end of lengthened rod body is connected with the force bar perpendicular to lengthened rod body, and lengthened rod body is slidably sleeved with support ring, and support ring is step ring, and the small head end of support ring is towards the outer hexagonal head and is in line with the screw installation counterbore of strip package forming wheel end. The utility model has the advantages that compared with prior art: through support ring to lengthened rod whole course support, avoid strip package forming wheel to appear the situation of skidding when dismounting and installing, make the maintenance convenient and fast, save maintenance time.

The present invention discloses a label-free photoacoustic pathology microscopic imaging system and imaging method. The system includes: an optical surface wave sensor for carrying tissue samples and water layers; an excitation light generating device; a detection light generating device; an objective lens, which allows the excitation light beam and the detection light beam to be incident on the tissue sample through the optical surface wave sensor; a processing and control device, which is used to control the movement of the excitation light beam to scan the tissue sample; an optical surface wave sensor, which is used to fully reflect the detection light beam, so that the reflected detection light beam is emitted through the objective lens; a processing and control device, which is used to split the detection light beam, synthesize photoacoustic signals and reconstruct images to obtain a target image. The imaging system has a high degree of integration and integration, and uses the optical surface wave sensor as a slide to carry the tissue sample, which can retain high-frequency signals to a great extent and improve the longitudinal resolution. In addition, the excitation light beam and the detection light beam share an objective lens, which can better ensure the coaxiality of the two light beams.

The present invention relates to the field of medical equipment technology, and in particular to a three-dimensional visual left atrial appendage occlusion device, comprising: a left atrial appendage occluder, a joint component, a pushing component and a three-dimensional marking system. The front end of the pushing component is connected to the left atrial appendage occluder, and the pushing component is used to store the left atrial appendage occluder to its inner side or release it from the inner side. A plurality of first electrodes are arranged on the outside of the left atrial appendage occluder, and the first electrodes are electrically connected to the three-dimensional marking system; a plurality of second electrodes are arranged on the front end of the pushing component, and the second electrodes are electrically connected to the three-dimensional marking system. The three-dimensional visual left atrial appendage occlusion device provided by the present invention ensures the coaxiality of the occluder and the left atrial appendage, and improves the effectiveness of the occluder insertion.

The utility model relates to a screw jack device for large -scale work piece support leveling, including support frame, screw rod, hand wheel, bracket and bolt, support frame whole presents the trapezoidal structure of little up big, is equipped with the mounting hole on the support frame, is equipped with the stop hole on the upper portion of mounting hole, hand wheel is installed in the stop hole, and can rotate relative to support frame, screw rod lower part passes in hand wheel and mounting hole in proper order, and is fixedly connected through trapezoidal thread and hand wheel screw thread cooperation, upper portion passes through bolt and bracket fixed connection, the utility model discloses through support frame adopts the trapezoidal structure of little up big, greatly enhanced the overall rigidity, effectively reduced the risk of falling when supporting large -scale work piece, provides the stable support foundation for large -scale work piece, guarantees the security of operation process, simultaneously through the trapezoidal thread cooperation of hand wheel and screw rod, single person can easily realize the lifting operation of screw rod, need not many people cooperation, significantly improves the operation efficiency, can satisfy the demand of large -scale work piece support leveling fast.

A comprehensive loading test bench for a tractor vehicle test comprises a test bench, four drum motors and a switching device, the four drum motors respectively correspond to four wheels of a test vehicle, and each drum motor is installed on a support of the test bench and is independently controlled by a corresponding controller; the rotary drum motor comprises a rotary drum and a plurality of disc type synchronous motors in the rotary drum, a wiring space is arranged on one side of the rotary drum motor to serve as the switching device, and all wiring terminals of the disc type synchronous motors in the rotary drum are integrated in the switching device and connected with a power supply cable. According to the utility model, through the arranged switching device, the winding wiring mode of the plurality of disc-type synchronous motors in the drum motor is adjusted, and the switching of the drum motor between two working modes of high-speed small torque and low-speed large torque is realized, so that the test of a tractor and an automobile on one loading test bench is realized.

The invention discloses a construction method for newly building a pier on an in-situ pier column in water. The technical problem that an existing construction method cannot be suitable for newly building the pier on the in-situ pier column in water is solved. According to the method, the hole is guided in the in-situ pier column in the water, and the hole guiding protection cylinder is arranged, so that compared with the method that the hole is directly drilled in the in-situ pier column in the water to construct the pile foundation hole, the hole guiding height is greatly reduced, and the construction difficulty of directly drilling in the in-situ pier column in the water is reduced; underwater concrete is poured in a gap between the bottom of the guide hole casing and the bottom of the pile foundation casing, a guide device is arranged at the top of the pile foundation casing, the two ends of the guide device are fixed to stably support the pile foundation casing, then downward impact hole forming is conducted along a center hole of the pile foundation casing, the size, the surface quality and the perpendicularity of the formed hole are guaranteed, and the quality of the formed hole of the pile foundation is guaranteed. The construction of the new bridge pier is completed on the basis of pile foundation hole forming, and the construction difficulty of the new bridge pier is reduced.

The application relates to the technical field of injection molding equipment, in particular to a target machine body plate lower shell structure forming die, which comprises a workbench, the upper end of the workbench is fixedly connected with a female die, the inner side of the female die is provided with a trimming mechanism for processing plastic plates, the trimming mechanism comprises a moving assembly for moving the processed plates, the trimming mechanism further comprises a trimming assembly for processing the edges of the plates and the inner wall, the upper end of the workbench is provided with a mechanical arm, the output shaft of the mechanical arm is provided with a stripping mechanism of a processing die, a flexible polishing strip adjusts the adhesion force through a fourth electric push rod, the granular protrusions and bubble residues generated due to the uneven melting of recycled materials on the inner wall of the shell are removed in a targeted manner, and the problem that the inner wall is not completely processed in the prior art is solved; the detection position can be adjusted through a CCD camera along with the extension and retraction of a second electric push rod, and the real-time monitoring of defects such as scratches and depressions on the outer side of the recycled plastic shell is avoided.

The present invention relates to the technical field of positioning devices, and provides a pin shaft positioning device and a docking beam. The pin shaft positioning device includes a pin shaft assembly and a latch seat assembly, wherein the pin shaft assembly includes a linear drive, a positioning seat and a pin shaft, wherein the output end of the linear drive is connected to the first end of the pin shaft, the pin shaft passes through the positioning seat and the second end can extend out of the positioning boss at the end of the positioning seat; the latch seat assembly includes a latch seat, and the latch seat includes a positioning groove adapted to the positioning boss and a pin shaft hole adapted to the pin shaft; the pin shaft assembly and / or the latch seat assembly move to position the positioning boss in the positioning groove, and the linear drive drives the pin shaft to be plugged into the pin shaft hole. The pin shaft positioning device and the docking beam of the present invention are convenient and accurate in positioning, and do not require top screw adjustment, thereby solving the problems of inconvenient operation, high manpower and time costs caused by top screw adjustment.

The utility model provides an optical fiber precise rotation clamping device which comprises a fixing frame, one side of the fixing frame is provided with an electric rotation sliding table and an optical fiber clamping arm fixed on the output side of the electric rotation sliding table, and one side of the optical fiber clamping arm is connected with a guide pipe in an inserted mode. According to the precise rotary clamping device for the optical fiber, the guide block is arranged on the optical fiber clamping arm, and the tapered channel is formed between the guide block and the optical fiber clamping arm, so that the guide pipe is conveniently fixed, and the optical fiber passes through the guide pipe and then is transited in the optical fiber channel through the tapered channel. The utility model further provides a cold grinding platform of the optical fiber lens, and the cold grinding platform comprises the optical fiber precise rotary clamping device, and further comprises a base plate, and a cold grinding unit, a light source unit, a CCD camera observation unit and a light spot online monitoring unit which are arranged at the top of the base plate. According to the cold grinding platform for the optical fiber lens, the optical fiber end cannot be eccentric in the grinding and polishing process through the high-precision limiting and end adjusting effects of the optical fiber precise rotary clamping device on the optical fiber.

The utility model discloses an injection chamber welding device, and relates to the technical field of injection chamber welding and fixing. The device comprises a bottom plate, a left supporting block, a middle supporting block, a right supporting block, a baffle and a hoop connector. A plurality of positioning pin holes are formed in the left supporting block at intervals; a first notch is formed in the upper portion of the middle supporting block, and a plurality of positioning pin holes are formed in the middle supporting block around the first notch at intervals. A second notch matched with the first notch is formed in the lower portion of the baffle, a third notch is formed in the upper portion of the baffle, and a plurality of positioning pin holes are formed in the baffle around the second notch at intervals. The utility model solves the current situation that all parts cannot be fixed and welding deformation cannot be limited in the injection chamber welding process, improves the product quality and the processing stability, mainly aims at ensuring the product quality and the processing precision, and has the advantages of compact structure, accurate positioning, reliable support, sufficient rigidity, good contact with a workpiece and high production efficiency. And the manufacturability of structural components is good.

The application discloses a cutting device for metal-clad pipe production and belongs to the technical field of metal-clad pipe production, which comprises a machine body, a moving seat arranged at the lower side of the inside of the machine body, a cutting part arranged at the inner upper side of the moving seat, a fixed cylinder fixedly connected to the left side of the machine body, first sliding grooves arranged at the front and back sides of the left end of the fixed cylinder, first sliding blocks slidingly connected to the inside of the first sliding grooves, and a moving frame fixedly connected to the left sides of the two first sliding blocks. The moving frame is arranged to adjust the positions of the first cutting part and the second cutting part under the pushing of the first electric push rod. Since the clad layer is first stripped during the cutting process of the metal-clad pipe, the laser is prevented from directly irradiating the stripped adhesive layer and metal mesh layer, heat degradation and interlayer shear stress are prevented, thereby realizing the layered cutting of "first mechanically cutting the clad layer and then laser cutting the base layer" and inhibiting the damage of the heat affected zone to the intermediate adhesive layer.

The invention relates to the technical field of powder mixing, in particular to a powder mixing device and a processing method for processing recycled rubber from waste tires, comprising: a base, on which a mixer is rotatably mounted; a rotating shaft, which is rotatably mounted in the mixer, one end of which is provided with a hysteresis chamber, and a side of the hysteresis chamber is provided with a through hole opening inclined upward; a follower structure, which is arranged on the rotating shaft and can generate downward pressure when the rotating shaft rotates; a trigger component, which is arranged on the base and can transport compressed gas into the hysteresis chamber and drive the rotating shaft to rotate; an energy storage component, which is connected to the trigger component and can passively store potential energy and actively release potential energy, and when the energy storage component actively releases potential energy, it will drive the trigger component to act; and a connecting component, which is arranged on the base and can connect the hysteresis chamber with the trigger component when the energy storage component acts, so as to improve the mixing effect between powders.

The utility model discloses a kind of guiding cylinder quick installation device, including base, base is fixed with quick clamping device, flange attachment device and quick positioning device, quick positioning device includes support rod, positioning rod, moving seat, stud and V block, support rod is fixedly connected with base and is slidably connected with moving seat, stud is connected with moving seat by thread and is contact connection with support rod, V block is fixedly connected with base and there is gap with positioning rod, flange attachment device includes first clamping plate, second clamping plate, adjusting column and knob, adjusting column is fixedly connected with knob and is connected with V block by thread, first clamping plate and second clamping plate are respectively located V block both sides and are all connected with adjusting column by thread, first clamping plate and second clamping plate are all with gap with positioning rod, the utility model solves the problem of traditional guiding cylinder quick installation device in guiding cylinder clamping quickness, flange face attachment compactness and guiding cylinder positioning quickness.

The invention discloses a watch middle frame injection mold, and relates to the field of injection molds, the watch middle frame injection mold comprises an upper mold assembly and a lower mold assembly, the upper mold assembly comprises an upper mold plate and an upper mold core, the lower mold assembly comprises a lower mold plate and a lower mold core, and a middle frame mold cavity is formed when the upper mold core and the lower mold core are closed; first slide assemblies are arranged between the upper mold core and the lower mold core and located on the two symmetrical sides of the middle frame mold cavity, the first slide assemblies can enter the watch middle frame mold cavity in the transverse direction in the mold closing process, and needle cores which are symmetrical and can stretch out and draw back are arranged at the front ends of the first slide assemblies; the symmetrical and telescopic needle cores are arranged at the front end of the first slide assembly, so that the buckle needle hole can be directly formed in the injection molding process, the secondary processing procedure is avoided, the production procedure is reduced, and the needle cores can enter a cavity during mold closing and exit during mold opening, so that the molding of the buckle needle hole structure is realized, and the production efficiency is improved. And therefore, the watchband assembling precision is improved, the production efficiency is obviously improved, and the production cost is reduced.

The utility model discloses a non-contact testing device for testing the high-temperature performance of a wire rod, which comprises an environment box and a mounting rod, the mounting rod is arranged at the front part of a box door of the environment box, quartz glass is embedded in the center of the box door of the environment box, two fixing frames are arranged outside the mounting rod, and the fixing frames are fixed on the mounting rod. An adjustable adjusting frame is connected between the two fixing frames, a video extensometer and a green light source are arranged on the adjusting frame, the green light source is arranged on the side edge of the front portion of the video extensometer, an upper chuck and a lower chuck are connected to the upper position and the lower position in the environment box through sleeves respectively, and the upper chuck and the lower chuck are symmetrically arranged. Conical cavities are formed in the upper chuck and the lower chuck, and two wedge blocks are symmetrically embedded in the conical cavities; according to the testing device for non-contact testing of the high-temperature performance of the wire rod, the probability of jaw breaking, slipping and the like in the stretching process of the wire rod can be greatly reduced.

The utility model relates to the field of gas stoves. The gas stove comprises a bottom shell and a face shell which are connected with each other, and further comprises a gas valve and a gas pipe which are communicated with each other, a mounting hole is formed in the face shell, the gas stove is characterized by further comprising a gland, the gland is annular, the outer edge of the gland is connected to the face shell in a pressing mode, and the inner edge of the gland extends to the inner side of the mounting hole. The part, located on the inner side of the mounting hole, of the gland is fixedly connected with the gas valve. The gas valve comprises a valve rod, the valve rod is arranged in the gland in a penetrating mode, the upper end of the valve rod is connected with a rotary knob, the rotary knob is in a column shape with an opening in the bottom, and a gap is formed between the side wall of the rotary knob and the gland. The utility model has the advantages that the positions of the knob and the mounting hole are relatively fixed, so that the knob and the mounting hole can be kept coaxial.

This invention belongs to the field of phase-type spatial light modulator detection technology, and particularly relates to a defect detection device and method for phase-type spatial light modulators based on a loaded phase lens. The defect detection device for phase-type spatial light modulators based on a loaded phase lens includes a support and a housing. The housing covers the outside of the support. The support has a first space, a second space, and a third space, with the third space positioned between the first and second spaces. A base plate is provided on both the first and second spaces. A laser source is installed in the first space via a first mounting mechanism, and the phase-type spatial light modulator is installed in the second space via a second mounting mechanism. This invention constructs the detection device through a modular design. The support is divided into independent first, second, and third spaces, accommodating the installation of the laser source, the spatial light modulator under test, collimating and beam expander, beam splitter cube, and camera. The structure is regular and the layout is reasonable.

The utility model discloses a grinding device for machining a CD angle of a ceramic chopper. The grinding device comprises a base, an integrated microscope, a chopper fixing seat, a Z-axis driving device, a rotating main shaft, a grinding needle positioning shaft, a grinding needle chuck and a grinding needle, the chopper fixing seat and the Z-axis driving device are respectively arranged on the base, and the ceramic chopper is clamped on the upper end surface of the chopper fixing seat; the Z-axis driving device is provided with a rotating spindle, a grinding needle positioning shaft is arranged at the lower end of the rotating spindle, a grinding needle chuck is arranged in the grinding needle positioning shaft, the upper end of the grinding needle chuck is connected with a cylinder, and a grinding needle is fixed at the lower end; the integrated microscope is installed on the base and used for observing the relative position between the ceramic chopper and the grinding needle. The grinding device is simple in structure and convenient to operate, the ceramic chopper can be rapidly clamped, the positioning precision of the grinding needle and the inner hole of the chopper is high, and therefore the machining precision and efficiency of the CD angle of the chopper can be improved.

The utility model discloses an extruding machine die of high extrusion precision, including upper die, lower die, the upper die middle part slidingly connected with the shunt block, the shunt block downside middle part fixedly connected with the core, the upper die both sides are equipped with the buffer groove, the buffer groove inside fixedly connected with the sliding rod, the sliding rod outside is connected with the ear, the ear is fixedly connected with the shunt block, the spring is fixedly connected between the ear lower part and the buffer groove, the spring cover is equipped in the sliding rod outside, the recess of the lower die upper part is equipped with the shunt block, the lower die middle part is equipped with the die cavity of the core, prolongs the service life of die, improves the extrusion precision of die.

A machine tool fixture for ball valve seat processing includes a fixture body, a clamping jaw, a push rod and a positioning piece. The push rod is slidably installed in the fixture body, the positioning piece is installed on the end face of the push rod, one end of the clamping jaw is slidably installed in the fixture body, and the clamping jaw is connected to the part of the push rod installed in the fixture body, and the positioning piece and the clamping jaw are driven to work simultaneously by the push rod. A guide push portion is provided on the push rod, and the clamping jaw is connected to the guide push portion. The clamping jaw is driven to move radially by the guide push portion. When the push rod is pushed outward (toward the ball valve seat), the clamping jaw is closed, and at the same time, the positioning piece is pushed out, and the positioning piece is abutted against the center hole of the ball valve seat; when the push rod is moved inward (away from the ball valve seat), the clamping jaw is spread open, and the positioning piece is separated from the center hole.

The invention relates to the technical field of batteries, in particular to a clamp for a battery and a welding process for the end of the battery, the clamp comprises a bottom plate and a side plate, the side plate is provided with a limiting plate, the bottom plate is provided with a movable pushing part, and a space for placing the battery is formed between the pushing part and the limiting plate. The side plate is provided with a limiting assembly between the pushing part and the limiting plate; a movable limiting piece I is arranged on the limiting plate, a limiting hole is formed in the limiting piece I, the aperture of the limiting hole is equal to the diameter of the joint of the connecting column and the battery, and the circle center of the limiting hole is located on the axis of the pushing part. The battery fixing device can adapt to batteries with different heights through movable arrangement of the pushing part, the limiting hole is formed, the hole diameter of the limiting hole is equal to the connecting position of the connecting column and the battery, namely the diameter of the bottom of the connecting part, and the circle center of the limiting hole is located on the axis of the pushing part, namely the axis of the battery; therefore, the connecting column and the battery can be ensured to be coaxial.

The invention provides a positioning and clamping method during surfacing of a vertical mill roller sleeve, which can quickly align the roller sleeve and reliably position and clamp the roller sleeve, is simple and convenient, has good universality, and comprises the following steps: hoisting a tool assembled by a supporting seat, a main shaft, a lower adjusting device, an upper adjusting device, a spacer sleeve and a handle, keeping the main shaft vertical, and placing the main shaft on a base; the roller sleeve is stably lifted in a horizontal state, penetrates through the upper end of the main shaft and is integrally sleeved on the tool downwards until the lower plane of the large end of the roller sleeve is in contact with the supporting position, and telescopic mechanisms of the lower adjusting devices are respectively adjusted to enable three groups of clamping heads to extend out to abut against an inner cavity of the large end of the roller sleeve; the upper adjusting device is kept in a horizontal state and stably lifted to the clamping head supporting position to make contact with the upper plane of the small end of the roller sleeve, and a telescopic mechanism of the upper adjusting device is adjusted to enable three sets of clamping heads to abut against an inner cavity of the small end of the roller sleeve; the handle is rotated to vertically clamp the two end faces of the roller sleeve through the spacer sleeve, the lower adjusting device and the upper adjusting device to fasten the roller sleeve, so that the tool and the roller sleeve form a combined body.

The utility model discloses a support that can install red dot sighting telescope and magnifying lens simultaneously, including support body and magnifying lens mounting bracket, the bottom of support body is equipped with guide rail clamping piece, and the top of support body is equipped with red dot sighting telescope installation position, magnifying lens mounting bracket installs on the support body behind red dot sighting telescope installation position, and can switch between first position state and second position state, and the top of magnifying lens mounting bracket is equipped with magnifying lens installation position, the utility model discloses can install red dot sighting telescope and magnifying lens simultaneously, has saved the use length of gun guide rail, and can unify the height of two mirrors, ensures that the sighting center is coaxial, avoids excessive adjustment, and provides magnifying lens quick switching mode simultaneously.