21results about How to "Guaranteed positional relationship" patented technology

The utility model relates to the technical field of linear transmission, in particular to a linear motor with a marble base, which comprises the marble base, two groups of guide sliding rails, a stator magnetic block, a rotor assembly and a sliding seat, the two sets of guide sliding rails are installed on the two sides of the sinking groove respectively, the multiple stator magnetic blocks are continuously arranged in the length direction of the sinking groove, the sliding seat is provided with sliding blocks, the sliding blocks are arranged on the guide sliding rails in a sliding mode, a placement groove is formed in one face of the sliding seat, the placement groove and the sinking groove are oppositely arranged, and the rotor assembly is installed in the placement groove. And the stator magnets are arranged opposite to the stator magnets. According to the utility model, the motor can still maintain high precision and stable performance during high-speed operation. The stability not only prolongs the service life of the motor, but also ensures that the motor can exert the optimal performance under various working conditions.

The present invention discloses a conveying mechanism for plate materials, including a driving device, a positioning device and at least two supporting seats, wherein a rotating shaft is rotatably provided on the supporting seat, each rotating shaft is arranged side by side, the first end of each rotating shaft is respectively connected to the driving device by transmission, and at least two groups of first belts are connected to the second end of each rotating shaft by transmission, and the upstream of each group of first belts is connected to the positioning device. The machining accuracy requirements for the rotating shaft and the supporting seat are low, the installation is convenient, the installation error is small, the first belt is very convenient to replace, and the conveying speed is uniform and stable. The present invention is applied to the field of material transmission equipment.

The invention discloses a processing method of a multilayer ring plate type magnet yoke, which comprises the following steps: processing two end ring plates and a middle ring plate, and preparing a positioning cushion block; one end annular plate is horizontally placed, the first end face of the end annular plate is punched upwards, then positioning cushion blocks are placed in the two counter bore punches correspondingly, and then the positioning cushion blocks are used for positioning so that the middle annular plates can be stacked on the end annular plate according to the designated position; lapping blocks are arranged on the periphery and are fixed; the other end annular plate is positioned by two positioning cushion blocks and stacked on the middle annular plate, and lapping blocks are arranged on the periphery and fixed; and the magnet yoke outer plane and the T-shaped groove which are connected into a whole are subjected to finish machining, and after finish machining, a tensioning screw rod penetrates into the T-shaped groove subjected to finish machining and is tightened by a hydraulic tensioner. The double-side positioning cushion blocks are adopted, and the relative position relation between the annular plates is effectively guaranteed; and meanwhile, the annular plates are connected into a whole in a spot welding and screw tensioning manner, so that the requirements of axial positioning and hoisting are met.

This invention discloses a welding positioning device and its forming method for training missiles. The welding positioning device includes: a missile body welding fixture, a pouring fixture, a tail fin welding fixture, and two centers. Each of the two centers consists of a frustum and a round rod coaxially fixed to the large-diameter end of the frustum. The two centers are respectively used to hold the inner hole of the missile body's central tube and the positioning sleeve. The missile body welding fixture is used to weld and position the missile head and cylindrical section, and the missile head and mounting sleeve. The pouring fixture is used for pouring and forming concrete inside the conical section of the missile body. The tail fin welding fixture is used to weld and position the tail fin and the conical section, and to ensure the relative angle between the tail fin blades and the positional relationship between the blades and the missile body axis. This invention can ensure the welding quality and welding accuracy of the training missile, thereby ensuring coaxiality, symmetry, and straightness.

The invention relates to measuring equipment for monitoring lines, in particular to a track detection platform and an inspection robot. The inspection robot comprises a track detection platform, the track detection platform comprises a rack, a guide wheel pair is installed at the bottom of the rack, the guide wheel pair comprises two guide wheels which are arranged on the left side and the right side of a to-be-detected track respectively and are in rolling fit with the left side face and the right side face of the to-be-detected track, and each guide wheel comprises a wheel carrier and a wheel body; one of the two guide wheels of the guide wheel pair is a fixed guide wheel which is fixed relative to the position of the platform body, the other guide wheel is a movable guide wheel which is movably assembled on the platform body along the left-right direction in a guiding manner, and a tension spring is arranged between the movable guide wheel and the corresponding fixed guide wheel; by means of the structure, it can be guaranteed that the platform body stably runs on the upper surface of the track, and the accuracy of track geometric parameter measurement is improved.

The utility model relates to an arc line expansion joint, including two edge beams, a plurality of anchor plates and a sealing strip, a plurality of anchor plates set up respectively in the outside of two edge beams, the edge beam includes the side plate with the top plate, the front and back of side plate all are provided with the clamping slot, the surface of top plate is equipped with the metal sheet, the surface of metal sheet is equipped with the convex, the top plate is located the top of side plate and has reserved the sealant installation groove between, through the edge beam design is the side plate with the top plate, and the top plate is handled with the side plate between using the metal sheet and the convex realization clamping and connects, makes its side plate and top plate form sealant installation groove between, to be more favorable to the staff between sealing strip and this edge beam carries out the installation operation, does not need to utilize external auxiliary tool to complete the installation dismounting operation when installation operation, makes the installation dismounting operation between this expansion joint and sealing strip more simple and convenient, saves time and labour, and the whole practicality is stronger.

The present invention discloses an array type optical orbital angular momentum multiplexing shaping optical system, comprising: an optical fiber light source, a lens group and a Fourier transform lens, wherein the optical fiber light source, the lens group and the Fourier transform lens are sequentially arranged along the incident direction of light, the lens group comprises: a one-dimensional microsphere lens array and a cylindrical lens group, the one-dimensional microsphere lens array is composed of a plurality of microsphere lenses with the same structure uniformly distributed in the lateral space, the cylindrical lens group is composed of a negative focal power cylindrical lens and a positive focal power cylindrical lens, the optical fiber light source is located on the symmetry plane of the cylindrical lens group and is placed on the front focal plane of the microsphere lens, the positive focal power cylindrical lens is located on the front focal plane of the Fourier transform lens, and the negative focal power cylindrical lens and the positive focal power cylindrical lens are arranged on the same optical axis. By adopting a one-dimensional microsphere lens array, the negative focal power cylindrical lens and the positive focal power cylindrical lens form an inverted telescope type cylindrical lens group, and beam shaping is achieved. The present invention is mainly used in the field of optical technology.

The invention relates to a novel side hanging type two-chuck pipe cutting machine, and relates to the technical field of pipe machining equipment.The novel side hanging type two-chuck pipe cutting machine comprises a lathe bed, a front chuck, a rear chuck, a cutting device, a feeding device and a discharging device, and the discharging device comprises a discharging main frame, a discharging lifting frame, a supporting plate, an overturning air cylinder and a plurality of first rollers; the discharging main frame is in sliding connection with the lathe bed in the pipe conveying direction, the discharging lifting frame is in sliding connection with the discharging main frame in the vertical direction, a cylinder body of the overturning air cylinder is rotationally connected with the discharging lifting frame, the end, away from the lathe bed, of the supporting plate is rotationally connected with the telescopic shaft end of the overturning air cylinder, and the end, close to the lathe bed, of the supporting plate is rotationally connected with the discharging lifting frame. The multiple first rollers are evenly arranged in the conveying direction of the pipes, the first rollers are rotationally connected with the supporting plate in the direction perpendicular to the conveying direction of the pipes, and the circumferential sides of the first rollers are located on the outer side of the supporting plate. The cutting device has the effect of improving the safety, the cutting precision and the production efficiency of equipment.

The invention discloses a method for directionally clamping a rotor part on a three-jaw chuck, which is characterized in that a positioning plate is designed, the positioning plate is provided with a through groove matched with three jaw seats on the three-jaw chuck, and a directional groove is formed in the breadth of the positioning plate from the edge to the center; a directional pin is designed, and the directional pin is matched with the directional groove and is also matched with a directional hole or a directional groove or a groove gap axially fixed to the rotor part; soft claws are mounted on the three claw seats; in the process that the rotor part is clamped by the soft claw, the orientation pin drives an axially fixed orientation hole or orientation groove or notch of the rotor part to move in the radial direction or rotate in the angular direction, and one-way movement of the rotor part in the radial direction is achieved. And the positioning precision is accurate, the product machining precision is guaranteed, the machining process is safe, the machining procedure is simplified, the machining efficiency is improved, and clamping and positioning of the product can be achieved on single-workbench equipment.

This invention provides an in-situ measurement and analysis method for the wear characteristics of a small-diameter ball-end grinding wheel for hemispherical harmonic oscillators, based on a spectral confocal sensor. It relates to the field of ultra-precision grinding and polishing technology, addressing the problem that existing in-situ detection methods cannot eliminate system installation errors, and that sensor-acquired signal data cannot accurately characterize the true wear condition of the grinding wheel. This invention uses a spectral confocal sensor to collect relative distance data of a standard sphere, utilizing the constraint conditions of the measurement coordinate points satisfying the ideal standard spherical surface equation. Simultaneously, based on multibody theory, it establishes the kinematic chain transmission relationship of the machine tool measurement system, constructs an error transmission model of the machine tool, and solves for assembly error values. The assembly error results are then used to compensate for the grinding wheel coordinate measurement results to obtain the calibrated grinding wheel coordinates, which are further fitted to the morphology of the small-diameter ball-end grinding wheel, thus achieving in-situ measurement and analysis of the grinding wheel wear characteristics.

The utility model discloses an insulated support device for conductor rail, including mounting seat, support insulator, set up on the mounting seat, be used for supporting and insulation to the conductor rail, and compensation component, set up on the mounting seat with the guide rail is connected, compensation component configuration can allow guide rail moves on the mounting seat along the first direction to compensate the deflection of guide rail. When the guide rail is because the deflection of guide rail produces the position deviation of compensation component compensation, avoids the contact pressure imbalance caused by mounting seat and guide rail rigid fixed.

The application discloses a heater positioning jig for silicon carbide epitaxial equipment and a use method. The positioning jig comprises a handle assembly, a bottom plate, a roller assembly, a support assembly, a support platform, an electrode positioning block and a pressing component. The bottom plate is provided with a bottom positioning block and mounting holes. The support assembly comprises a plurality of support rods, the side ends of the support rods are embedded in the mounting holes, and the other side is connected with the support platform. The bottom plate is provided with the roller assembly. The electrode positioning block is placed on the support platform and used for positioning the electrode. The two sides of the handle component are provided with fixing parts which are used for fixing the second ends of the electrode. The distance between the fixing parts is the same as or approximately the same as the distance between the two second ends of the electrode. After the fixing parts are fixed with the second ends of the electrode respectively, the corresponding heater is taken out through the handle component, so that the positional relationship between the heater and the electrode is guaranteed, and the uneven force of the heater during the transfer is avoided. The method improves the maintenance or replacement efficiency of the heater assembly.

The invention relates to an indicating grating of a grating ruler, which is characterized in that an incremental code channel, an absolute or zero window, a cross window and a device bonding window are carved on the indicating grating, and the front surface of the indicating grating is plated with chromium; the incremental code channel and the absolute or zero window are respectively positioned on two sides of the cross window; the incremental code channel of the indication grating corresponds to the incremental code channel of the main grating and the pixel of the photoelectric device for receiving the incremental signal, and the absolute or zero window corresponds to the absolute or zero code channel of the main grating and the pixel of the photoelectric device for receiving the absolute or zero signal; the windows of the incremental code channels follow the arrangement mode of phase differences of 0, pi / 2, 3pi / 2 and pi, and when illumination light divergence and temperature change exist in the grating ruler and linear errors are introduced in the process of manufacturing the indication grating, the position error increase in the period of the grating ruler is not obvious, so that the signal quality is improved.

The utility model discloses a kind of battery mechanism of cycling equipment, driving mechanism and cycling equipment, it is related to battery technology field.The battery mechanism of cycling equipment, including battery assembly and control assembly, battery assembly includes first shell and the electric core being arranged in the inside of first shell, control assembly includes second shell and the first circuit board and second circuit board being stacked along axial direction in the inside of second shell, communication module is equipped on the first circuit board, MOS module is equipped on the second circuit board.The first shell is detachably connected along axial direction with the second shell, the control upper shell of plastic article and the control lower shell of metal article are included in the second shell along axial direction, control upper shell connects battery lower shell, communication module on the first circuit board is arranged in the inside of control upper shell, MOS module on the second circuit board is arranged in the inside of control lower shell.The battery mechanism of the utility model can improve the integrated degree of internal device.

The utility model discloses a guide connecting structure which is used for assisting in high-precision butt-joint assembly of an impeller and a base of a wind driven generator, the diameter of a threaded hole of the impeller is larger than that of a threaded hole of the base, and the guide connecting structure comprises at least two guide pieces arranged in the circumferential direction of the impeller at intervals. One end, in the length direction, of the guide piece is used for being detachably connected into the threaded hole of the base, the other end of the guide piece is sleeved with a flexible piece, and the flexible piece is used for being inserted into and penetrating through the threaded hole of the impeller. According to the utility model, the impeller and the base are quickly and accurately guided and aligned, the mounting efficiency is improved, the alignment precision of the threaded hole of the impeller and the threaded hole of the base is ensured, and the damage to internal threads of the threaded holes of the impeller and the base in the process of fixing the impeller and the base by using a bolt is effectively avoided.

The present invention discloses a multi-channel optical orbital angular momentum beam shaping optical system, comprising: an optical fiber light source, a cylindrical lens group and a Fourier transform lens, wherein the optical fiber light source, the cylindrical lens group and the Fourier transform lens are sequentially arranged along the incident direction of light, the cylindrical lens group comprises: a one-dimensional micro-cylindrical lens array and a cylindrical lens, the one-dimensional micro-cylindrical lens array is composed of a plurality of micro-cylindrical lenses of the same structure uniformly distributed in the transverse space, the optical fiber light source is located on the symmetry plane of the cylindrical lens and is placed on the front focal plane of the micro-cylindrical lens, and the cylindrical lens is located on the front focal plane of the Fourier lens; the present invention ingeniously adopts a one-dimensional micro-cylindrical lens array and a single cylindrical lens combination mode, and the light sources of all channels are shaped by the one-dimensional micro-lens array and the cylindrical lens, and the beam shaping of multi-channel optical orbital angular momentum multiplexing is truly realized. The present invention is mainly used in the field of optical technology.

The cooking utensil comprises a pot body, a heating device and a circuit board support located on one side of the heating device, the pot body comprises a base and a middle ring located above the base, the middle ring is provided with a first installation column extending towards the base, the heating device is provided with a first installation through hole, and the first installation through hole is communicated with the first installation column. The circuit board support is provided with a mounting arm extending towards one side of the heating device, one of the first mounting column and the mounting arm is provided with a first convex part, the other one of the first mounting column and the mounting arm is provided with a first concave part, and at least part of the first convex part penetrates through the first mounting through hole and extends into the first concave part. According to the circuit board provided by the invention, the use of fasteners is reduced, the assembly is simple and convenient, and the assembly efficiency can be improved.

The utility model discloses a rear panel assembly and an intelligent door lock. The rear panel assembly comprises a rear bottom plate, a driving shaft, a fixing structure and a rear panel. The driving shaft is arranged on the rear bottom plate; the fixing structure is used for limiting the driving shaft to the rear bottom plate so that the driving shaft can rotate in the circumferential direction and can be limited in the axial direction. The rear panel is connected to the rear bottom plate, a rotatable knob is arranged on the rear panel in a penetrating mode, and the knob is used for driving the driving shaft to rotate. According to the technical scheme, the assembling efficiency of the rear panel assembly can be improved.

A medium conveying device and a medium processing device using the same, which take into account both the parallelism of the image transferred to the medium and the oblique adjustment of the medium. The medium conveying device includes: a conveying belt; a first tensioning roller, which clamps the medium between the image holding element and the conveying belt and conveys it, and transfers the image held by the image holding element to the medium; a second tensioning roller, which is tensioned from a tensioning position based on the first tensioning roller to a position located on the downstream side of the conveying direction of the medium; a contact adjustment element, which uses one end of the axial direction of the first tensioning roller as a fulcrum to swing the other end to adjust the contact state of the contact area between the image holding element and the conveying belt along the long side direction; and a posture adjustment element, which keeps the distance between the axes of the first tensioning roller and the second tensioning roller constant, and uses one end of the axial direction of the second tensioning roller as a fulcrum to swing the other end to adjust the posture of the second tensioning roller relative to the first tensioning roller.