85results about How to "Reduced Alignment Difficulty" patented technology

The invention relates to the field of insulating sheath installation, in particular to an electrified installation transformer pile head insulating sheath installation device which comprises a first installation rod, a second installation rod and a connecting rod, an insulating sheath is installed in the installation rod, a wire sheath is installed on the insulating sheath, and wire grooves are formed in the same horizontal line of the insulating sheath and the wire sheath. A linear motor is installed in the installation sleeve, the output end of the linear motor is connected with the top of the insulation sheath, an empty groove is formed in the installation sleeve, a first spring is installed in the empty groove and connected with a clamping block, a top block is installed on the top of the insulation sheath, and the side, close to the clamping block, of the top block is provided with an inclined face matched with the side face of the clamping block. A first mounting disc is mounted on the outer side of the mounting sleeve, a driving structure is arranged in the first mounting disc, and the driving structure is used for driving the mounting sleeve to rotate so as to adjust the mounting direction of the insulating sheath and the wire sheath, manual mounting is not needed, the risk of safety accidents is reduced, and the life safety of operators is guaranteed.

The invention provides stamping equipment for automobile engine oil pan production, and belongs to the technical field of oil pan stamping equipment. Which comprises a stamping equipment body and is characterized in that a lower die and an upper die are installed on the stamping equipment body, a first supporting frame is installed on one side of the stamping equipment body, and a second supporting frame is installed on the other side of the stamping equipment body; an automobile oil pan material plate is placed on the top of the first supporting frame. By arranging the auxiliary feeding mechanism and the auxiliary discharging mechanism, the auxiliary feeding mechanism can be utilized, workers do not need to make direct contact with an automobile oil pan material plate, the automobile oil pan material plate can be rapidly and stably transferred to the position between the lower die and the upper die, and accurate alignment can be achieved after transferring, and the automobile oil pan material plate can be reliably placed on the top of the lower die; and compared with a traditional manual handheld plate feeding mode, the feeding device is safer and more reliable.

The invention discloses a four-axis compensation machining method under a workpiece offset clamping state, which comprises the following steps of: modeling a kinematic chain of a rotary table type four-axis machine tool to obtain a motion transformation equation between a coordinate axis of the four-axis machine tool and a cutter location under a workpiece non-offset clamping state; modeling a kinematic chain of the four-axis machine tool in the workpiece offset clamping state to obtain a general cutter spacing compensation calculation formula in the workpiece offset clamping state; and according to the obtained cutter spacing compensation calculation formula, a general numerical control machining program under the actual working condition is written. A cutter location source file generated by CAM software is processed, a numerical control machining program with a macro variable is obtained, and precise machining of a workpiece in an offset clamping state is achieved. Precise machining under the non-collinear state of the zero point of the workpiece and the rotary shaft of the rotary table can be achieved, the operation difficulty is lowered, the product clamping and aligning time is shortened, and the production efficiency is improved.

The invention discloses a mountain tunnel arch frame mounting device which comprises a frame vehicle, a screw rod is rotatably mounted at the bottom of the side end face of the frame vehicle, a base is mounted on the outer side of the screw rod through threads, a position adjusting seat is rotatably mounted on one side of the top end of the base, a machine base is slidably mounted at the top of the position adjusting seat, and guide rails are symmetrically mounted on the side end face of the position adjusting seat. According to the device, gravity can be converted into driving force, energy consumption in the arch frame installation process is reduced, the energy-saving and environment-friendly performance of the device is improved, the flexibility of installation work is improved, double alignment correction can be conducted on a side arch and an arc-shaped arch frame, and the device has the advantages of being simple in structure, convenient to use and high in practicability. The alignment accuracy and the fitting property with the side wall of the tunnel are improved, so that the assembling and connecting work of the side arch and the arc-shaped arch frame is more efficient, convenient and flexible, the safety and reliability of arch frame installation are fully improved, and the supporting effectiveness of the arch frame is improved.

The invention discloses a precise-control three-main-truss steel truss girder closure section mounting method, belongs to the technical field of truss girder closure, and aims to realize precise control of a three-main-truss steel truss girder closure section through optimization of a closure section structure, a sling-free double-machine lifting technology, a steel girder longitudinal movement control method under limited release conditions and optimization and adjustment of a closure gap butt joint process. The invention discloses a method for predicting, analyzing and controlling a closure gap based on ballastless track control requirements. By means of the mode, according to the technical scheme, the closure section structure is optimized, the problem of diagonal web member interference in the hoisting alignment process is avoided, and the relative error of downwarping and rotating angles of closure openings on the two sides is reduced by adopting a sling-free double-machine hoisting mode and a control method; a cantilever steel beam on one side is integrally and limitedly moved longitudinally, a closure gap is expanded, the alignment difficulty of a closure section is reduced, and a vertical adjustment measure is improved by utilizing a low-temperature method; the problems that the linear requirement of a ballastless track is high, and the requirement for the installation precision of a closure section is high due to the fact that a steel strand stay cable can only be tensioned and cannot be released are solved, the technical scheme is feasible, and the construction cost is saved.

This utility model discloses a conical drum device for a horizontal decanter centrifuge, relating to the field of horizontal decanter centrifuge technology. It includes a straight drum body and a conical drum body, with a positioning component between them. The positioning component includes an inner positioning groove fixedly formed on the inner wall of the end of the straight drum body, and an outer positioning groove fixedly formed on the outer ring of the end of the conical drum body. The outer and inner positioning grooves are interlocked. This utility model, through the installation of the positioning component, pre-positions the welding area between the straight and conical drum bodies before welding, thereby ensuring the welding quality. This solves the problem in existing horizontal decanter centrifuges where the conical and straight drum bodies cannot be pre-positioned before welding, leading to easy misalignment during welding and affecting the welding quality.

The utility model relates to fan transmission system technical field, and disclose a kind of assembly impeller, including impeller and main shaft, the detachable connection between the impeller and main shaft, at least two symmetrical distribution's protruding tooth is processed in the main shaft end face;The recess matched with the protruding tooth is opened in the impeller body end face, and torque is transferred by the side surface contact of the protruding tooth and recess;The utility model is matched by protruding tooth and recess, and contact area is big, can effectively disperse torque, reduce local stress concentration;Symmetrical distribution's protruding tooth makes stress more balanced, avoids the local failure caused by structural deviation.

The utility model relates to the technical field of natural gas conveying pipelines, and discloses a long-distance natural gas conveying pipeline which comprises a gas conveying pipeline, connecting flanges are arranged at the two ends of the gas conveying pipeline, threaded holes are formed in the two connecting flanges, connecting bolts are installed in the threaded holes, and a sealing groove is formed in the end face of the connecting flange at any end. The end face of the connecting flange at the other end protrudes outwards to form a sealing protrusion matched with the sealing groove, the sealing grooves and the sealing protrusions of the two adjacent gas pipelines are installed in a butt joint mode, the sealing grooves and the sealing protrusions are provided with sealing structures, wedge-shaped tangent planes are formed in the outer edges of the connecting flanges, and the wedge-shaped tangent planes and the threaded holes are distributed in a staggered mode. The wedge-shaped sections of every two adjacent connecting flanges are combined to form a wedge-shaped notch, an opening of each wedge-shaped notch is gradually enlarged from inside to outside in the radial direction, a pressing structure is installed in each wedge-shaped notch, and the lower end of each pressing structure makes contact with the corresponding sealing structure. According to the utility model, the sealing performance of the joint of the underwater gas pipeline is enhanced, and the maintenance cost is reduced.

The application relates to a quick dismounting structure and method for a heavy mold, and relates to the technical field of mold manufacturing. The quick dismounting structure comprises a mounting mold frame and a heavy mold arranged on the mounting mold frame. The mounting mold frame comprises a lower mold base for supporting the heavy mold, an upper mold frame, and a wedge block assembly wedged between the heavy mold and the mounting mold frame. The heavy mold is provided with an upper mounting portion and a lower mounting portion. The lower mounting portion is provided with a lower guide surface inclined towards both sides of the heavy mold from top to bottom. The upper mold frame is provided with an upper mounting groove matched with the upper mounting portion for locking. The lower mold base is provided with a lower mounting groove matched with the lower mounting portion for locking and a push assembly slidably arranged on both sides of the lower mounting groove. The push assembly comprises an ejection unit arranged on one side of the lower mounting portion and a push-in unit arranged on the other side. The ends of the ejection unit and the push-in unit are respectively parallel to the corresponding lower guide surfaces. The application can improve the quick dismounting effect of the heavy mold and the mold frame support.

The water dispenser convenient to assemble comprises a dispenser body, the dispenser body comprises a shell with a mounting cavity, the mounting cavity is provided with a front side opening, the dispenser body further comprises a front cover used for sealing the front side opening, and a surrounding edge protruding in the direction away from the front cover is arranged on the circumferential edge of the front cover; the shell is provided with a guide part, the surrounding edge is in guide fit with the guide part to pre-position the front cover, and a buckle structure for fixing the front cover and the shell is further arranged between the front cover and the shell. When the front cover and the shell are assembled, pre-positioning of the front cover can be realized through matching of the surrounding edge and the guide part, on the basis, the front cover and the shell are fixed, so that the assembling difficulty is reduced, the assembling efficiency is improved, and the front cover can be prevented from deviating from the mounting position in the mounting process through pre-positioning of the front cover; the front cover and the shell are fixed, favorable conditions are provided for fixing the front cover and the shell, the requirement for operators is low, the front cover and the shell are fixed in a buckled mode, operation is easy, and efficiency is high.

This application relates to the field of sensor technology, providing a force sensor and its fabrication method. The force sensor has a disk-shaped structure, including four irregularly shaped elastic beams connected between an outer support ring and a central support platform, and multiple strain gauges on the main surface of the elastic beams. The main surface is parallel or substantially parallel to the disk surface of the disk-shaped structure. Each of the four elastic beams includes four straight arms. The two ends of the first straight arm are orthogonally connected to the second and third straight arms, respectively, and the middle of the first straight arm is orthogonally connected to the fourth straight arm. The fourth straight arm is located on either side of the second and third straight arms. The outer ends of the fourth straight arm and the second and third straight arms are each connected to the central support platform or the outer support ring. Because the irregularly shaped elastic beams include multiple orthogonal straight arms, the strain gauges can be flexibly arranged in a bridging configuration, making the bridging output sensitive only to specific forces or torques, thus improving the decoupling capability of the sensor structure. Simultaneously, placing the strain gauges only on the main surface reduces the mounting difficulty.

This utility model discloses a three-dimensional wound core low-loss intelligent distribution transformer, relating to the field of distribution transformer technology. It includes a transformer body and a docking base plate. A fixed base is provided on the lower surface of the docking base plate. Multiple heat dissipation components are equidistantly installed on the outer wall of the transformer body. The fixed base is provided with a docking mechanism for convenient docking and fixing of the fixed base and the docking base plate. This utility model, through the docking mechanism, enables precise docking between the fixed base and the docking base plate, significantly reducing the alignment difficulty during transformer body hoisting and installation, effectively improving the convenience of docking between the fixed base and the docking base plate. After the transformer body is rotated to the designated position, the docking base plate can be easily engaged, positioned, and locked, ensuring the structural stability of the transformer body after installation and effectively preventing loosening of connections due to vibration and other factors, thereby further improving the efficiency of transformer body installation.

The utility model relates to experimental consumables, in particular to a perforated plate for zebra fish culture, which comprises a plurality of groups of culture holes, each group of culture holes comprises a plurality of culture holes, adjacent culture holes in the same group are communicated through micropores, the diameters of the micropores are matched with those of eggs of zebra fish, and the diameters of the micropores are matched with those of the eggs of the zebra fish. And when the amount of the culture medium added into the culture holes is a preset volume, the culture medium just enters the micropores. By arranging the micropores, the old culture medium does not need to be sucked away first and then the new culture medium is quantitatively added, only the new culture medium needs to be continuously added on the basis of the old culture medium until the culture medium enters the micropores, at the moment, the volume of the culture medium in the culture holes is close to the preset volume, and the excessive part can be automatically transferred to the communicated adjacent culture holes and does not need to be sucked out manually; and the roes with large direct drop cannot pass through the micropores, so that the operation difficulty of exposing and culturing the roes is reduced by adopting the structure.

The utility model is suitable for the technical field of endoscopes, and provides a handle shell, an endoscope handle and an endoscope, the handle shell is used for the endoscope, the handle shell comprises a first sub-shell and a second sub-shell, the first sub-shell is provided with a first alignment end and a first covering end in the extending direction of the first sub-shell, and the first alignment end is provided with an alignment groove; the second sub-shell is provided with a second alignment end and a second covering end along the extension direction of the second sub-shell, and the second alignment end is provided with an alignment bulge; the alignment protrusion can be buckled into the alignment groove in the extending direction of the first sub-shell so that the second sub-shell can rotate around the alignment groove relative to the first sub-shell to the first covering end to be covered with the second covering end. According to the invention, in the covering process of the first sub-shell and the second sub-shell, the alignment of other parts of the handle shell can be realized only by aligning the alignment bulge with the alignment groove for clamping, so that the alignment difficulty of the handle shell in the covering process is reduced.

The utility model discloses a kind of reinforcing structures between steel structure factory building beam column steel frame, including the inclined brace component being arranged between existing steel column and existing steel frame beam, inclined brace component includes inclined brace rod, and column connecting plate and beam connecting plate being arranged at both ends, column connecting plate connects the existing steel column, and beam connecting plate connects the existing steel frame beam;Existing steel column is provided with column reinforcing plate in the region of connecting the column connecting plate, and existing steel frame beam is provided with beam reinforcing plate in the region of connecting the beam connecting plate;Adjacent the existing steel column between being arranged at factory building side wall is further provided with detachable intercolumnar rigid tie rod, and the setting height of the intercolumnar rigid tie rod is not lower than the height of column connecting plate at the position. Through the above setting, the safety and stability of the roof truss beam can be better ensured, the roof permanent load can be increased, the overall structure is simple, and the original structure does not need to be disassembled or adjusted, so the installation and construction are easy.

The invention relates to a machining method for a thin-wall cylinder with a composite angle characteristic, belongs to the technical field of machining, and solves the problem that a small-size cylinder with an inner cavity with the composite angle characteristic is difficult to machine in the prior art. The invention discloses a machining method for a thin-wall cylinder with composite angle characteristics. The machining method comprises the steps that the cylinder is fixed to a machine tool rotary table (A axis) through an inner cavity machining clamping tool and is positioned and aligned; the machine tool turntable is fixed on the machine tool worktable (B shaft); the required composite angle is fitted by rotating the A shaft and the B shaft, and the long-arm right-angle milling head is matched to realize the processing of the composite angle characteristic of the inner cavity of the barrel. According to the machining method, the non-linkage five-axis machine tool can be used in cooperation with the special tool and the milling head, machining of the small-size barrel with the inner cavity having the composite angle characteristic is achieved, the requirement for machining equipment is lowered, operation is relatively easy, the machining precision is controllable, the machining cost is greatly reduced, and the machining method is suitable for large-scale production and large-scale popularization.

The utility model discloses a quartz tube sleeve for assembling a bonding wire annealing tube gas sensor, which comprises a tube body, the fixing pipe is used for being inserted into an annealing pipe opening to achieve sleeving connection of the pipe body and the annealing pipe, the limiting protrusion is used for abutting against the end face of the annealing pipe opening, the mounting base is used for mounting a gas sensor, and the limiting protrusion is arranged on the inner circumferential wall of the pipe body. One end of the limiting protrusion is connected between the fixing pipe and the installation base, the other end of the limiting protrusion is arranged in an inclined mode in the direction where the fixing pipe is located, a connecting table is arranged on the side wall of the installation base, and a containing cavity used for containing the sensor body is formed in the connecting table. The gas concentration monitoring device is simple in structure and convenient and reliable to assemble, facilitates monitoring of gas concentration and has a good use effect.

An adjusting pad and a linear guide system for machine tools, belonging to the technical field of machine tool parts, are disclosed. The adjusting pad includes two elongated, sheet-like pads, each fixedly connected at one end by a connecting part. All pads are spaced apart along the length of the connecting part, with a first clearance groove between adjacent pads. The first clearance groove is open at the end furthest from the connecting part. A second clearance groove is provided on the outer side of each pad near the two ends of the connecting part, also open at the end furthest from the connecting part, and open on the side closest to the end of the connecting part. The first and second clearance grooves together provide clearance for all fastening screws. The sides of the second clearance grooves at both ends open simultaneously, eliminating the need for the outermost sheet, reducing the workpiece machining accuracy requirements, and facilitating the insertion and positioning of the adjusting pad, significantly reducing alignment difficulty.

This invention relates to the field of optical technology and provides a short-to-mid-wave infrared broadband achromatic telescope lens. Along the object-to-image direction, it sequentially includes an aperture stop, a first lens, a second lens, a third lens, a fourth lens, a beam splitter, a compensating plate, and a multi-stage micromirror. Incident light passes through the aperture stop, then sequentially through the first lens, second lens, third lens, fourth lens, beam splitter, and compensating plate, before being received by the multi-stage micromirror. The optical path direction is the direction of the incident beam. The first lens is a zero-power tilted lens, the second lens is a negative-power negative meniscus lens, the third lens is a negative-power negative meniscus lens, and the fourth lens is a positive-power biconvex lens. The beam splitter and compensating plate are both 45° tilted flat plates, and are arranged parallel to each other. The entire lens improves the consistency of illumination between the edge and center fields of view, with the edge relative illumination approaching 1, ensuring the accuracy of the spectral information of the measured image.

The utility model relates to the technical field of automation, in particular to an automatic feeding device. According to the automatic feeding device, the material trays on the feeding frame are jacked to the feeding position through the jacking assembly, the material trays at the feeding position are carried to the limiting mechanism through the carrying mechanism to be centered and positioned, the centered and positioned material trays are transferred to the positioning assembly through the transferring assembly to be positioned and fed, and automatic conveying, positioning and feeding of the material trays are achieved; the working efficiency is high; the limiting mechanism is used for centering and positioning the charging tray, so that the position precision of the subsequent charging tray can be ensured, and the alignment difficulty of the charging tray and the positioning assembly is reduced; and the transferring assembly transfers the centered and positioned trays to the positioning assembly for positioning and feeding, so that the trays with the large length-width ratio are effectively prevented from warping or deforming, the trays are kept flat, and the feeding precision is guaranteed.

The invention discloses an arch frame installation device for a mountain tunnel, comprising a frame carriage, a screw rod is rotatably installed at the bottom of the side end surface of the frame carriage, a base is installed on the outer side of the screw rod through a thread, an adjustment seat is rotatably installed on one side of the top of the base, a machine base is slidably installed on the top of the adjustment seat, a guide rail is symmetrically installed on the side end surface of the adjustment seat, and support ears are symmetrically installed at the bottom end of the machine base corresponding to the position of the guide rail, and the support ears are slidably connected to the guide rail. The invention can transform gravity into driving force, save energy consumption in the process of arch frame installation, improve the energy-saving and environmental protection performance of the device, and improve the flexibility of installation work, and can perform double alignment correction on the side arch and the arc arch frame, improve the alignment accuracy and the fit with the tunnel side wall, which not only makes the assembly and connection work of the side arch and the arc arch frame more efficient, convenient and flexible, but also fully improves the safety and reliability of the arch frame installation, and improves the support effectiveness of the arch frame.

The utility model discloses a forced centering device of quick positioning relates to engineering surveying and drawing equipment technical field. The utility model discloses a base, the base inner chamber slidingly connected with connecting rod, the base bottom is provided with locking assembly. The utility model locking assembly is driven through the screw rod and the thread transmission cooperation connecting rod of pull block, realizes the stable sliding of locking plate, and the accurate clamping of combination intercalation and intercalation forms double fixed restraint, and the locking positioning of connecting rod is more firm and reliable, effectively resists the vibration of field operation, wind power etc. External interference, avoid the loosening deviation after locking, guarantee the stability of the centering accuracy, and only need to rotate screw rod can drive locking assembly linkage, through the screw rod transmission, connecting rod traction drive locking plate stable sliding, complete accurate locking fast, whole installation process does not need complex tool and tedious step, and the operation is coherent and efficient, effectively reduces the installation time -consumption of field surveying and drawing operation.

This utility model belongs to the technical field of duct reinforcement structure, and discloses a reinforcing support structure for a smoke-proof and exhaust composite duct. It includes a support beam, with a duct fixedly connected to its lower surface. The lower surface of the support beam has a slot with insertion holes. An installation block is installed within the slot. A reinforcing beam is fixedly connected to the lower surface of the installation block, and an installation beam is fixedly connected to the lower surface of the reinforcing beam. The installation beam has a slot with a connecting beam installed within it, and a second bolt is installed on the installation beam. Through the cooperation of the installation beam, slot, connecting beam, and second bolt, the two reinforcing beams are connected by the connecting beam, improving overall stability and transforming the independent reinforcing beams into a continuous load-bearing system. This increases the equivalent section modulus, significantly improving resistance to bending moment, shear, and torque. The integrated rigidity distribution reduces stress concentration at local weak sections, and the overall frame stiffness transmission path is more uniform.

The utility model discloses a dip-coating device. The dip-coating device is used for immersing a guide wire or a catheter into dip-coating liquid so as to form a dip-coating layer on the surface of the guide wire or the catheter. The dip-coating device comprises a clamping mechanism, a straightening mechanism, a dip-coating container and a first power mechanism which are sequentially arranged. The clamping mechanism is used for clamping and fixing one end of the guide wire or the catheter, so that the other end of the guide wire or the catheter is arranged towards the dip-coating container; the first power mechanism is connected with the clamping mechanism and is used for driving the clamping mechanism to move towards the dip-coating container, so that the guide wire or the catheter clamped by the clamping mechanism is gradually immersed into the dip-coating container; the straightening mechanism is arranged between the clamping mechanism and the dip-coating container and comprises a straightening assembly and a second power device, a first channel is formed in the straightening assembly, the guide wire or the guide pipe penetrates through the first channel, and the second power device is connected with the straightening assembly so as to be used for driving the straightening assembly to move towards the dip-coating container; therefore, the guide wire or the catheter is straightened.

The utility model provides a kind of connecting structure of steel structure node, it is related to building steel structure technical field, comprising: fixed column and positioning structure;The side surface of the fixed column is provided with clamping groove, and the outside of fixed column is equipped with positioning structure, and positioning structure contains following components: connecting concave frame: be equipped in one side of fixed column, the side wall of connecting concave frame is fixedly connected with first insert strip, and first insert strip is inserted in clamping groove, and the both ends of connecting concave frame are fixedly connected with first tab, and first tab is provided with first perforation;By setting positioning structure, it realizes the accurate and fast alignment of beam and column, not only greatly reduces the alignment difficulty of worker, more conveniently worker fastens and installs bolt, avoids bolt from being unable to accurately install due to misplacement, significantly improves construction convenience, simultaneously, in the double restraint mechanism of positioning angle frame and bolt, further improves node shear capacity, effectively enhances the overall stability of steel structure, provides reliable guarantee for building safety.

The present disclosure relates to the field of photovoltaics, and provides a solar cell, a manufacturing method thereof, a laminated cell and a photovoltaic module. The solar cell comprises a substrate and a plurality of fine grids on the substrate. The fine grids are arranged along a first direction and extend along a second direction, and the first direction intersects the second direction. The fine grid comprises a positioning portion arranged at intervals along the second direction, a first connecting portion extending along the second direction and electrically connected to two adjacent positioning portions, and at least two positioning portions between the two adjacent first connecting portions. A connecting layer is arranged on the positioning portion and electrically connected to all the positioning portions. The reliability of the solar cell can be improved.

The utility model belongs to the field of electric power overhaul auxiliary equipment, and particularly relates to auxiliary equipment for installing a current transformer. Comprising a placing platform used for placing a current transformer; the placement platform is located on the horizontal centering mechanism, and a transverse movement module and a longitudinal movement module on the horizontal plane are arranged on the centering mechanism; the lifting mechanism is located below the alignment centering mechanism; the current transformer is placed on the placing platform, and rapid installation can be carried out after connecting holes in the upper side and the lower side of the current transformer and installation holes in an installation plate in a switch cabinet are centered through the lifting mechanism and the horizontal centering mechanism. And the placing platform, the horizontal centering mechanism and the lifting mechanism are carried on the walking mechanism. And the traveling mechanism can complete the required transfer in the mounting process.

This application relates to a display panel, a backplane, and a display device. The display panel includes: a packaging structure and a driving backplane; the packaging structure includes: a first substrate, the first substrate including a first side and an opposing second side; a light-emitting unit disposed on the first side of the first substrate; a contact structure formed on the second side of the first substrate; the contact structure includes a plurality of concentrically arranged annular pins, the plurality of annular pins being connected to a plurality of pins of the light-emitting unit through a plurality of conductive vias in the first substrate; the driving backplane includes: a second substrate, one side of the second substrate having a plurality of first limiting portions; the second substrate having a first through hole in the axial direction of the first limiting portions; and first pad structures disposed within the plurality of first limiting portions and formed on the side of the second substrate near the first limiting portions. Using this display panel can reduce the difficulty of mass transfer of light-emitting chips.