258results about How to "Avoid position changes" patented technology

A high-speed carding machine comprises a base and a vibration wool feeding machine, a high-speed carding device and an automatic three-position barrel changing device which are connected with one another sequentially. The vibration wool feeding machine in the high-speed carding machine utilizes a translational vibration plate and a baffle to push textile raw materials uniformly, and moreover, the falling and outputting speeds of the textile raw materials are increased. A shaft seat of the high-speed carding machine is arranged on a breast cylinder wallboard and a large cylinder wallboard, so that the phenomenon that the positions of a breast cylinder and a large cylinder are changed relatively to the positions of a working roller and a wool stripping roller due to the high-speed rotation is avoided, the production quality is ensured, a suction pipe is arranged to suck the textile raw materials and reduce air flow which is generated by high-speed rotation, and the operation stability and high speed of the carding machine are ensured. The automatic three-position barrel changing device can control rotating wheels to change collection barrels, so that the high-speed carding machine is simple in structure and the labor intensity of the working personnel is reduced; and a U-shaped guardrail can ensure that the operation tracks of the collection barrels are stable when the collection barrels are changed, so that the whole barrel changing operation is carried out stably, and the collection barrels are prevented from tipping over during the barrel changing process.

The invention discloses a non-woven fabric dying production line which comprises an uncoiling device, a dying cylinder, a cleaning cylinder, dry-rolling device, a drying device, a coiling device, a plurality of guide rollers, net belts and a first frame body. The uncoiling device, the dying cylinder, the cleaning cylinder and the dry-rolling device are arranged on the first frame body in sequence. The coiling device is arranged in rear of the drying device, and the dying cylinder, the cleaning cylinder and the first frame body are provided with the guide rollers. The net belts are arranged on the guide rollers in a tensioning mode. Compared with the prior art, the good cleaning effect can be achieved, the dying quality of a product is not affected, the size of an exhaust opening can be adjusted, the normal temperature in drying non-woven fabric in a drying oven and the coherence of the whole production process are guaranteed, production efficiency is not affected, crimples are avoided, the overall attractiveness and the coiling quality of the non-woven fabric are ensured, slippage in transmission can also be avoided, the transmission rate is guaranteed, the uncoiling speed can be prevented from being higher than the belt supporting speed of the net belts, water removing is even, the normal water removing effect is achieved, and the drying effect is not affected.

A method for producing highly dimensionally accurate, deep-drawn half shells with a base region (122), a body region (116) and a flange region (118), includes firstly forming a pre-formed half shell (24, 50, 72, 92) from a blank (4) and then shaping the pre-formed half shell (24, 50, 72, 92) into a finally formed half shell (112), wherein the pre-formed half shell has excess blank material due to its geometric shape and wherein, owing to the excess material during the shaping of the pre-formed half shell into its final shape the half shell is compressed into the finally formed half shell by at least one further pressing process. The method requires that the pre-formed half shell has excess blank material in a transition region between the body region and flange region.

A novel high-speed carding machine comprises a base and a protecting housing mounted on the base. Baseplates are symmetrically mounted on the base in the protecting housing, a feeding roller, an opening and scutching roller, a chest cylinder, a transferring roller, a big cylinder, a doffer and a three-roller wool stripping device are sequentially mounted in the protecting housing, and a wool top drafting device is mounted on the base in rear of the protecting housing. Shaft seats among the rollers are arranged on chest cylinder wall plates and big cylinder wall plates, and working rollers and wool stripping rollers are mounted between the chest cylinder wall plates and the big cylinder wall plates, so that relative position changing between the chest cylinder as well as the big cylinder and the working rollers as well as the wool stripping rollers is avoided due to high-speed rotation, and production quality is guaranteed; due to arrangement of an air suction pipe, spinning raw materials raised in the protecting housing can be sucked out, and airflow generated by high-speed rotation can be reduced, so that stability and high-speed of running of the carding machine are guaranteed.

The present invention discloses a turning-over wheelchair nursing bed. The turning-over wheelchair nursing bed comprising a bed body mechanism and a wheelchair mechanism arranged on an inner side of the bed body mechanism, the bed body mechanism comprises a bed plate and L-shaped support plates arranged at both sides of a bottom part of the bed plate, a rectangular receiving groove is arranged atone end of the bed plate, and the other end of a top part of the bed plate is provided with a bed head plate. In a process of pushing the wheelchair mechanism into the inner side of the bed body mechanism, a limiting member releases locking of a driving member, at the same time, the driving member drives a lifting member to move downward, the lifting member drives downward to drive a backup plateto turn downward through a connecting member, at the same time, and an L-shaped pedal is turned up automatically form a horizontal bed plate. During a process of pushing the wheelchair mechanism out of the inner side of the bed mechanism, the driving member drives the lifting member to move upward, the lifting member moves upward to drive the backup plate to turn upward through the connecting member, at the same time, the L-shaped pedal is turned down to automatically form a chair body, and besides, the limiting member automatically locks the driving member, thereby ensuring stability of the chair body shape.

A permanent magnet motor stator assembling device is characterized by comprising an assembling platform for supporting, a positioning plate and a guide bushing, wherein the positioning plate is provided with a guide hole and is fixed to the assembling platform, the guide bushing is axially detachably connected with a revolving shaft drive end of a rotor, and a stator is detachably mounted on the positioning plate and aligned to the guide hole coaxially; in the assembling process of the stator and rotor, the guide bushing matches with the guide hole in a guided way and runs through the positioning plate to extend to the assembling platform. In application of the permanent magnet motor stator and rotor assembling device, accurate centering positioning and guiding of the stator and the rotorduring assembling is guaranteed, centering requirements of assembling of the stator and the rotor are met, the stator and the rotor are assembled in a reliable, safe and effective way without any damage to winding, and quality and precision of assembling of the stator and the rotor are guaranteed. The invention further relates to a permanent magnet motor stator and rotor assembling method.

The present invention provides a camera module including an image sensor, a package substrate for packaging the image sensor, a lens seat covering the image sensor, and a lens provided on the lens seat. The lower end portion of the lens seat away from the lens includes a dispensing face facing the package substrate and a plurality of bumps protruding toward the package substrate from the dispensing face, the dispensing face is adhered to the package substrate by gel, and the bumps directly touch the package substrate. The gel on the dispensing face does not deform due to effects of various heat and force, avoiding change of relative position between the lens and the image sensor, and ensuring imaging quality of the camera module.

The invention relates to a welding belt bonding device of a solar module, comprising a loading machine which clamps and leads out the welding belt supplied by a welding belt supply portion, enabling the welding belt to pass the upper part of a solar cell, and a heating bonding portion which is provided with a plurality of first pins in the bottom to prevent the led-out welding belt from displacing under the state of clamping release. The welding belt under the state of clamping release is fixed and bonded to the solar cell by means of the first pins and a plurality of second pins protruding the bottom face. The welding belt is fixed to a bus of the solar cell by means of pins whose height of the tail ends are shorter among all the pins, and a component enabling the welding belt to completely disengage from a clamp is provided. Therefore, the position of the welding belt can be prevented from changing and bonding can be conducted at a correct position. The effect of preventing the solar module from having a low efficiency and preventing the service lifetime from being shortened can be achieved.

The invention discloses a laser cutting machine. The laser cutting machine comprises a machine frame, wherein a pipe feeding device, a workpiece conveying device, a rotation clamping device, a laser head device and a discharging device are arranged on the machine frame, the workpiece conveying device is used for conveying pipes conveyed from the pipe feeding device, the rotation clamping device is used for clamping the pipes conveyed from the workpiece conveying device, and the laser head device is used for cutting the pipes clamped by the rotation clamping device. The discharging device comprises an installation base, a tilting mechanism arranged on the installation base, a chucking mechanism which is arranged on the installation base and is located at the back of the tilting mechanism in the conveying direction of the pipes, and a clamping device which is arranged on the installation base and is located in front of the tilting mechanism in the conveying direction of the pipes. The laser cutting machine is simple in structure, convenient to use, good in pipe cutting effect and high in work efficiency.

The invention discloses an electromagnetic drive type magnetic suspension rotating platform which comprises an electromagnetic suspension structure positioned on an outer ring and an electromagnetic drive structure positioned on an inner ring, wherein a rotating platform casing is arranged outside the electromagnetic suspension structure and the electromagnetic drive structure; the electromagnetic suspension structure comprises an annular electromagnetic suspension iron core; a plurality of teeth are symmetrically arranged on the annular electromagnetic suspension iron core along the circumference; an electromagnetic suspension winding is wound on each tooth; a high-precision air gap sensor is arranged at the clearance between every two teeth; an annular suspension conductor plate is arranged above the annular electromagnetic suspension iron core; the electromagnetic suspension structure comprises an annular electromagnetic drive iron core; three groups of teeth are symmetrically arranged on the outer side of the electromagnetic drive iron core along the circumference; the electromagnetic suspension windings are continuously wound on each group of teeth; each group of electromagnetic drive winding is in a link type structure; an annular permanent magnet rotor is arranged outside the annular electromagnetic drive iron core; and a photoelectric encoder is arranged on a rotating shaft of the rotating platform casing. The assembly difficulty is reduced and the manufacturability is improved.

The invention discloses a device for synchronously measuring axial displacement and radial displacement of a rigid coupler. The device comprises a supporting rod which is connected in opposite connecting holes of two half couplers in a penetrating mode, a support is fixedly installed on the supporting rod, an axial measuring device measuring the axial displacement of the coupler and a radial measuring device measuring the radial displacement of the coupler are arranged on the support, threads are arranged on the supporting rod, the supporting rod and the coupler are connected through a pair of nuts I which are arranged on the supporting rod and positioned on the two sides of the coupler, and the support is installed on the supporting rod in a sleeved mode and fixed through a pair of nuts II. The device is simple in structure and convenient to operate, by the adoption of the axial measuring device and the radial measuring device which are installed on the support, axial displacement deviations and radial displacement deviations of the rigid coupler can be measured simultaneously, accumulative errors caused by separated measuring are reduced to the maximum, and measurement accuracy is improved substantially.

The invention provides a wafer vertical stability calibration system and a method for calibrating the vertical stability of a wafer. The system comprises a wafer to be calibrated, a supporting device,a dynamic balance system and a grabbing device, wherein supporting device is used for placing the wafer to be calibrated; the dynamic balance system is arranged at two sides of the wafer to be calibrated and opposite to the surface of the wafer to be calibrated, the dynamic balance system includes a plurality of nozzles which are different in position, the nozzles can spray a liquid or gas to thesurface of the wafer to be calibrated so as to calibrate the position of the wafer to be calibrated and enable the wafer to be calibrated to keep a vertical state; and the grabbing device is used forgrabbing the wafer to be calibrated to move from one position to another position. The system provided by the invention avoids the problems such as wafer dropping, breaking and scratching due to thechange in position when a transmission gripper grabs the wafer, and improves the yield and output.

The invention relates to a single pole assembly tool for an immobilized and encapsulated post terminal and a casting method for the immobilized and encapsulated post terminal. The single pole assembly tool for the immobilized and encapsulated post terminal comprises a wire outgoing base support frame. the wire outgoing base support frame is provided with an upper wire outgoing base positioning structure and a lower wire outgoing base positioning structure, wherein the upper wire outgoing base positioning structure and the lower wire outgoing base positioning structure are used for enabling an upper wire outgoing base and a lower wire outgoing base for the single pole assembly of the immobilized and encapsulated post terminal to meet a preset positional relationship. The single pole assembly tool further comprises a wire outgoing base connecting piece. The wire outgoing base connecting piece is provided with a fixation part fixedly connected with one of the upper wire outgoing base and the lower wire outgoing base, and a positioning part in axial and circumferential location fit with the other one of the upper wire outgoing base and the lower wire outgoing base. By using the above tool, the single-pole assembly of the above immobilized and encapsulated post terminal is prevented from relatively rotating or axially moving to cause the relative position change during the transferring and preheating process. Therefore, the assembling efficiency and the die-filling efficiency of the single-pole assembly of the immobilized and encapsulated post terminal are ensured. Meanwhile, the yield and the production efficiency of the immobilized and encapsulated post terminal are ensured. The cost is lowered.

The invention discloses a repair method for complexing of inner flow passages of single-crystal or directional-crystal alloy blades. The repair method includes step S100, judging and analyzing blade failure and defects before repair; step S200, cutting failure or defective portions of the blades, and polishing and cleaning the blades; step S300, mounting pre-produced and pretreated complexing molds used for guaranteeing high-accuracy complexing of inner flow passage structures of the blades, and fastening the complexing molds in to-be-repaired blade cavities, wherein the complexing molds are core molds with outer surfaces capable of forming blade cavity flow passages through solidification of follow-up blade material melts; step S400, preheating to-be-repaired portions to more than 75% ofa material melting point calculated by Kelvin, and allowing the blade repair portions to extend externally to grow in a direction control way according to a metal melt filling method; step S500, removing the complexing molds after metal cladding, and performing follow-up processing on the blades. The repaired blades meet application requirements of the single-crystal or directional-crystal blades,service life of the blades is prolonged to the greatest extent, and the repair method has great theoretical and practical significance.

The invention relates to the field of mechanical equipment processing and discloses a drilling machine. The drilling machine comprises a fixing base, an angle plate, a first drilling unit, a second drilling unit, a clamping unit and a control unit, wherein the fixing base is used for supporting tubing to be drilled; the angle plate is arranged above the fixing base; the first drilling unit is arranged on the angle plate in a slidable manner so that the drilling axis of the first drilling unit can be adjustable relative to the azimuth angle of the tubing to be drilled; the second drilling unitis arranged on the fixing base and located below the fixing base and is used for machining holes of the tubing to be drilled in the vertical direction; the clamping unit is arranged on the fixing baseand used for clamping the two ends of the tubing to be drilled; and the control unit is connected with the clamping unit, the first drilling unit and the second drilling unit. The drilling machine solves the problems that equipment cost is high, precision is low, and production efficiency is high when tube parts need to be machined for multiple holes.

The invention discloses a stripping device for an EVA (Ethylene Vinyl Acetate) sample strip in the detection of crosslinking degree. The stripping device comprises a bottom plate, wherein two upright columns are mounted at the two sides of the bottom plate in parallel; a guide rod is mounted between the two upright columns; a sample stripping cutter capable of moving along the guide rod is mounted on the guide rod; a cultivation sheet placement platform capable of moving in a manner vertical to the guide rod is mounted on the bottom plate between the two upright columns; and the cultivation sheet placement platform is positioned between the sample stripping cutter and the bottom plate. Compared with the conventional stripping method, the stripping device does not adopt tools such as clamps, the safety is higher, and the danger caused by operating personnel using cutters and clamps in a labor-consuming way in the sampling process is reduced; the sample strip is not deformed, so that the sample strip can be used for the crosslinking degree test, and the utilization rate of sample strips after sampling is improved; the sample strip is not subjected to the external mechanical tensile force, the situation that the test result is affected due to test sample strips undergoing mechanical stress effect is avoided, and the test result can be reflected more objectively and fairly, and accurate parameters are obtained.

The invention discloses a hydraulic movable dam, which comprises a rebar ground anchor piece, a hinged support, a movable plate, a hydraulic station, an oil pipe, a hydraulic cylinder and two support rods, wherein the rebar ground anchor piece is deeply buried in the foundation of the dam; the part, which extends out of the ground, of the rebar ground anchor piece is provided with the hinged support; the hinged support is a loop-type hinged support; the hinged support is provided with a concentric shaft; the concentric shaft penetrates through the hinged support and is movably connected with the hinged support; the movable plate is provided with two hydraulic rods and the two support rods; the hydraulic rods and the support rods are in articulated juncture with the movable plate; the hydraulic rods and the support rods are controlled by the hydraulic cylinder; the hydraulic cylinder is connected with the hydraulic station through the oil pipe; the hydraulic station is used for controlling the direction, the pressure and the flow of oil flow. The movable dam disclosed by the invention is simple in structure and convenient in operation, and can swing within a range of 0-180 degrees, and thus, single-sided and two-sided water stopping of the movable dam can be conveniently realized; the concentric shaft is fixedly arranged on the loop-type hinged support, so that the concentric shaft and a base are prevented from being changed in position, and the water leakage of the bottom part of the movable dam is effectively prevented.

The invention discloses a sea cucumber catching device. The sea cucumber catching device comprises a pipeline, a first support, a second support and a waterproof camera. The upper portion of the first support is connected with a first motor, a motor shaft of the first motor is fixedly connected with a first gear, the lower portion of a pipeline is movably connected with a second gear through a first rotating shaft, the first gear and the second gear are connected with each other through a first chain, and the first chain is connected with catching parts; each catching part comprises a first connecting rod and a second connecting rod, the outer side of each second connecting rod is fixedly connected with a bearing plate, the outer side of each bearing plate is fixedly connected with raking hooks, the outer side of each raking hook is movably connected with a first rotating wheel, each bearing plate is provided with a through hole, the lower portion of each bearing plate is fixedly connected with a catching net, the upper portion of each bearing plate is connected with a door plate in a hinged mode through a hinging wheel, the upper portion of each second connecting rod is fixedly connected with a stop block, and one side of each door plate is connected with bristles evenly. The sea cucumber catching device can overcome the defects in the prior art and effectively filter out sea sand in catching.

The invention discloses a nondestructive testing method for water distribution in the drying process of roots of red-rooted salvia. Roots of red-rooted salvia samples with different drying times and different drying temperatures are coated with thread seal tapes in a sealed mode, and the coated roots of red-rooted salvia samples are placed for 3-5min at room temperature; a T2 spectrogram and proton density weighed images are obtained through the low-field nuclear magnetic resonance technology, the positions of 10 ms and 100 ms in the T2 spectrogram serve as boundaries, bound water exists at the positions of 0.1-10 ms, water not likely to flow exists at the positions of 10-100 ms, free water exists at the positions of 100-1,000 ms, the peak integral area serves as the relative content of the water, and therefore the relative content of the bound water, the relative content of the water not likely to flow and the relative content of the free water are obtained; distribution positions of the water in the roots of red-rooted salvia samples in the roots of red-rooted salvia samples are obtained according to the proton density weighed images, therefore, the distribution states of the bound water, the water not likely to flow and the free water of the roots of red-rooted salvia samples with the different drying times and the different drying temperatures are obtained, and then the water distribution in the drying process of the roots of red-rooted salvia is obtained.

The invention discloses a lithium ion battery diaphragm cutting machine and relates to the technical field of production of lithium ion batteries. The lithium ion battery diaphragm cutting machine comprises a frame, a motor, a synchronous belt and a cutting device, wherein the frame comprises a support frame, roller frames and a cutting platform; the roller frames comprise a first roller frame, a second roller frame and a third roller frame; an unwinding roller is arranged at the upper part of the first roller frame; a first positioning roller is arranged at the lower part of the first roller frame; a second positioning roller and a finished product roller are arranged on the second roller frame; a residual material roller is arranged on the third roller frame; the motor is connected with the two positioning rollers via the synchronous belt; the cutting device is arranged on the cutting platform and comprises vertical plates, a threaded shaft, a sliding block, a blade, a limiting rod and a transverse plate; the threaded shaft is mounted at the upper parts of the two vertical plates; the sliding blocks is mounted on the threaded shaft; the blade is arranged at the lower part of the sliding block; the upper part of the sliding block is connected with the limiting rod; the transverse plate is arranged at the tops of the two vertical plates; a limiting elongated slot is formed in the transverse plate. The lithium ion battery diaphragm cutting machine is simple in structure, convenient to use, high in cutting efficiency and high in cutting accuracy; the demand of lithium ion battery diaphragms in small-batch production of lithium ion batteries can be met.

The invention relates to a forming process of a support connecting piece of a bridge steel structure foundation. A bridge support connecting piece forming device is adopted in the forming process of the support connecting piece of the bridge steel structure foundation, and the bridge support connecting piece forming device comprises a mounting bracket, an adjusting support plate, an adjusting mechanism, a positioning plate, a rotating lead screw, a movable block, a telescopic rod and a guide post. The forming process of the support connecting piece of the bridge steel structure foundation by adopting the bridge support connecting piece forming device comprises the following steps of (S1) locking the connecting piece support plate; (S2) adjusting the position of a bonding frame; (S3) positioning upper side plates; and (S4) welding a ribbed plate. According to the forming process, the problems of poor splicing effect between the upper side plates, influence on the forming effect of the upper side plates, incapability of accurate positioning of the upper side plates and the like because the upper side plates are not firmly locked by locking clamps when the upper side plates of different sizes are spliced during processing of an existing steel structure support connecting piece can be solved.

The invention discloses a Chinese medicinal material slicing device which automatically controls the slice thickness, relates to the field of traditional Chinese medicine processing equipment, and solves the technical problems that the pressing mechanism of the existing equipment is easy to flatten the material and the thickness of the cutting material is difficult to adjust. It includes a frame, The slicing mechanism and the driving device for feeding, the slicing mechanism is provided with a cutter head drive end, the drive device realizes left and right reciprocating motion through the incomplete gear shaft, the cutter head is perpendicular to the moving direction of the drive device, the cutter head drive end and the incomplete gear shaft pass through the The gear steering mechanism is connected with the driving motor, and the bevel gear steering mechanism includes two bevel gear shafts. The two bevel gear shafts are provided with transmission ends with adjustable diameters, and are respectively connected with the drive end of the cutter head and the incomplete gear shaft. In the present invention, the diameter of the shaft connected to the transmission device is adjusted to change the rotational speed ratio, thereby adjusting the slice thickness and speed. The utility model is suitable for slicing Chinese medicinal materials whose slice thickness is automatically controlled.

The invention discloses a method for measuring flux of a magnetic element and a device thereof. The magnetic element to be detected is placed into Helmholtz coils. A magnetizing direction of the magnetic element to be measured is in the axial direction of the Helmholtz coils, and furthermore the magnetic element to be measured is arranged at right central part between a first coil and a second coil. After a flux meter is reset, the magnetic element is overturned for 180 DEG through an overturning mechanism and is kept still. An output value of the flux meter is read as a flux value of the magnetic element to be measured, thereby obtaining the flux value of the magnetic element to be measured. The method of the invention is advantageous in that: in the measurement process, defining of the magnetic field area of the Helmholtz coils is not required; and the flux value can be measured through overturning the magnetic element for 180 DEG by the overturning mechanism. Simple operation, low labor intensity and relatively high measurement efficiency are realized. The overturning mechanism can ensure same measurement condition and position of each magnetic element to be tested. Relatively high repeatability and high accuracy of the measured data are realized. Furthermore the method is not limited by the volume of the magnetic element.

The invention relates to a large-span truss supporting structure and a construction method thereof, in particular to the field of constructional engineering. The supporting structure comprises a jig frame and an adjusting device installed on the jig frame, wherein the jig frame is placed on a base plate, the adjusting device comprises a base, an adjustable supporting column and a driving piece, the base is in location fit with the jig frame, and the adjustable supporting column and the driving piece are fixed to the side, without the jig frame, of the base. The structure solves the problem that a truss supporting structure is too troublesome in the construction process.

The invention discloses a combined tunnel type guide limiting structure of a die-casting mold. The combined tunnel type guide limiting structure of the die-casting mold comprises a movable mold frame with a mold cavity positioning concave cavity, a movable mold cavity and a core mold sliding block. The core mold sliding block is provided with a sliding block mold core, the movable mold cavity is installed in the mold cavity positioning concave cavity, the movable mold frame is provided with a guide sliding groove used for improving the sliding stability of the core mold sliding block, the core mold sliding block and the guide sliding groove are matched in a front-and-back sliding mode, the front end of the upper end face of the movable mold cavity is provided with a tunnel limiting block, the tunnel limiting block is provided with a mold cavity tunnel which forms a sliding block tunnel structure, the mold cavity tunnel is composed of a cylindrical sliding hole and a tunnel sliding hole, and the end face, where the cylindrical sliding hole is formed, of the tunnel limiting block is matched with the hole end face of a part hole of a product part in a limiting mode. According to the combined tunnel type guide limiting structure of the die-casting mold, the sliding block tunnel structure design is adopted, and a guide rail is provided so that the motion trail of the core mold sliding block can be limited through the cavity tunnel and the guide rail, position change caused by the core mold sliding block during mold sinking is effectively avoided, and the defects that the size of die castings is out of tolerance due to mold swelling of a movable mold and a fixed mold, the sliding block fails in sliding and inlet flashing is stuck are thoroughly overcome or improved.

The invention belongs to the technical field of punching machines, and particularly relates to a plastic part punching machine, which comprises a lower base, a support disposed vertically on the lower base and an upper base disposed at the upper end of the support. A lower punching disc provided with a plurality of punching dies is disposed on the upper end face of the lower base. An upper punching disc matched with a punching disc is disposed below the upper base. The lower end face of the upper punching disc is provided with punching heads which correspond to the punching dies on the lower punching disc one to one. A guide rod is fixedly arranged at the upper end of the upper punching disc, a punching cylinder is fixedly arranged below the upper base, and a piston rod of the punching cylinder is fixedly connected with the guide rod through a connector. During punching, a plurality of parts to be punched are correspondingly placed on the plurality of punching dies of the lower punching disc, the punching cylinder is started, the piston rod of the punching cylinder drives the upper punching disc downwards to enable the plurality of punching heads on the lower end face of the lower punching disc to correspond to the respective punching dies of the lower punching disc for punching, and accordingly a plurality of parts can be punched at one time and punching efficiency is improved.

The invention discloses an emergency traffic light, and mainly relates to the field of road traffic facilities. The emergency traffic light comprises a bottom plate, a fixed pipe is arranged at one side of the surface of the bottom plate, and a supporting rod is arranged on the inner bottom surface of the fixed pipe. A screw rod is rotatably arranged at the top end of the supporting rod, a threaded sleeve is in threaded connection with the outside of the screw rod, and a sliding block sleeves one end, positioned in the fixed pipe, of the threaded sleeve. The sliding block is in sliding connection with an inner cavity of the fixed pipe, a driving mechanism is arranged outside the fixed pipe and penetrates through the fixed pipe to control the rotation of the screw, and a signal lamp is arranged at the end, located outside the fixed pipe, of the threaded sleeve. Walking wheels are arranged under the bottom plate, a hydraulic lifting rod is arranged in the middle of the bottom of the bottom plate, and a supporting plate is arranged at the bottom of the hydraulic lifting rod. The emergency traffic light has the beneficial effects that the emergency traffic light can be stably placed after being moved to a designated position, the height is adjustable, and the emergency traffic light is suitable for roads with complex pavements.

The invention relates to the technical field of battery assembling, and particularly relates to a welding clamp for cylindrical battery. The welding clamp for the cylindrical battery comprises a framebody in which a battery mould can be placed, wherein pressing plates are correspondingly mounted at a front frame opening and a rear frame opening of the frame body, and a collecting plate positionedon the battery mould is pressed on the battery mould through the pressing plates; a plurality of collecting sheets on the collecting plate are corresponding to a plurality of cell electrodes of the battery mould; and welding operating ports through which the collecting sheets are welded with the cell electrodes in a one-to-one correspondence manner are formed in the pressing plates. With the adoption of the welding clamp for the cylindrical battery, the battery mould can be reliably fixed, and the collecting plate is compressed on the battery mould; the welding can be performed through the welding operating ports; and in addition, the welding clamp is high in welding quality, stable in structure, and convenient and simple to operate.

There is provided a filter-equipped microplate including: an upper container 41 having openings 50 for injection of a substance to be tested; a top packing 44 and a bottom packing 45 that hold filters 46; a middle container 42 that fits with the upper container 41 and has openings 63 through which a test sample that has passed through the filters 46 runs, and that clamps the top packing 44 and the bottom packing 45 against the upper container 41: and a lower container 43 having reservoirs 80 that retain the test sample, the lower container 43 being held in a freely detachable manner against the middle container 42, wherein the middle container 42 has guide walls 64 that suspend down from the openings 63 and provide downward openings 65 to the bottom end, and the reservoirs 80 in the lower container 43 house the guide walls 64, the reservoirs 80 receiving the test sample supplied from the downward openings 65 of the guide walls 64 through the filters 46, and the lower container 43 having vents 90 at a widening slant 92 at the top, that communicate with the outside of the reservoirs 80.