62 results about "Screw post" patented technology

The utility model relates to fan technical field discloses a kind of high-power direct connection fan support structure, including two support frames, and the middle part of support frame is provided with locking assembly;Locking assembly includes mounting bracket, and mounting bracket is fixedly connected in the middle part of support frame, and the inside of mounting bracket is slidably connected with limit plate, and the lower surface of limit plate is fixedly connected with screw rod, and one end of screw rod is fixedly connected with connecting rod, and the both ends of connecting rod are fixedly connected with fixed sleeve, and the lower surface of fixed sleeve is provided with sucking disc, and the both sides of the inner wall of fixed sleeve are all provided with limit slot.The utility model utilizes sucking disc to adsorb ground, and simultaneously screw post drives piston plate to move up and air in sucking disc is extracted to fixed sleeve, to enhance the adsorption fastening force of sucking disc, reduce the support frame and fan to be caused by human collision and fall down;And through the adjusting rod sliding in connecting pipe, the spacing between the two support frames is conveniently adjusted to adapt to the fan of different width and volume, and the versatility of support frame is improved.

The utility model discloses a cutting device for PVC decorative plate processing, including operation panel, the same width bottom plate is swing -connected in operation platform top, the both ends of bottom plate top are swing -connected with the moving plate, the moving plate upper surface all is equipped with the sliding slot, the sliding slot below all are equipped with the length same limit slot, the both ends of moving plate all are equipped with first screw groove, the both sides of moving plate top all are equipped with two clamping devices, the sliding slot inside all swing -connected with two size mutually consistent sliding block, the limit slot inside all swing -connected with two size mutually consistent moving block, the both sides lower extreme of moving plate all are equipped with the connecting plate, the second screw groove is passed through in the connecting plate side all, the first screw groove inside swing -connected with the size first screw post that agrees with, the second screw groove inside swing -connected with the size second screw post that agrees with, the both ends of bottom plate both sides all arrange several fourth screw grooves, the utility model discloses in use can clamp the decorative plate of different size and cut.

The utility model discloses a screw locking structure which comprises a screw, a support and a screw column. A through hole for the screw to penetrate through is formed in the middle of the bracket; a threaded hole matched with the screw is formed in the middle of the screw column. The bottom of the support is provided with a positioning part used for positioning and rotation stopping of the screw column. The bottom of the support is provided with the positioning part used for positioning the screw column and stopping rotation, so that the screw column can be accurately positioned and stopped from rotating, the screw can be conveniently screwed in, the operation convenience is improved, the assembly efficiency is improved, meanwhile, the assembly precision is stably guaranteed, and the situation that the assembly is not in place is avoided.

The utility model relates to the technical field of power industry, in particular to a cover plate convenient for opening and closing a cable trench, which comprises a plate body positioned on the cable trench, an expansion bolt body mounted in the plate body, a screw column mounted on the plate body and extending into the expansion bolt body, and a lifting ring arranged on the screw column. The expansion bolt body is installed by forming the positioning groove in the plate body, and the screw column in the hanging ring extends into the expansion bolt body, so that tools such as a crowbar do not need to be used when the plate body is opened, the working intensity of an operator is reduced, and the plate body is convenient to open; the movable block is extruded by the bolt column to enable the fixed port to extend into the plate body, so that the plate body and the expansion bolt body are quickly connected, the surrounding encapsulation of the cover plate of the power trench cannot be damaged when the plate body is opened, the hidden effect is achieved after the lifting ring is detached, the appearance of the cover plate is not affected, and the cover plate can be conveniently used when needed.

The utility model relates to the technical field of installation of automobile interior trim panels, and discloses a screw stud anti-thread-slipping structure of an automobile interior trim panel, two supporting seats are integrally formed on one side of an interior trim panel body and located on the outer side of a cylinder body, and two screw stud bodies are fixedly connected to one sides of the two supporting seats respectively. Connecting holes are formed in one ends of the two screw column bodies, arc-shaped faces are arranged at the ends of the connecting holes, and positioning assemblies are arranged on the sides, located on the two screw column bodies, of the two supporting bases. According to the self-tapping screw, through the arrangement of the arc-shaped surface on the inner side of the screw column body, the self-tapping screw can be guided, meanwhile, the temperature generated during tapping is reduced, the stability of the self-tapping screw during tapping is enhanced, and the condition of screw loosening during tapping of the self-tapping screw is prevented; and through arrangement of the positioning columns, positioning during installation of the interior trimming panel body can be assisted, correction of the installation positions of the installation holes and the screw column bodies can be rapidly completed, and the assembly efficiency of the interior trimming panel body can be improved.

The utility model provides an adjustable pipeline support which comprises a pipe column, a fixed bracket is installed on the top of the pipe column, a U-shaped screw rod is arranged on the upper side of the fixed bracket, the two ends of the U-shaped screw rod are sleeved with movable brackets, the two ends of the U-shaped screw rod are in threaded connection with positioning nuts, and the two ends of the U-shaped screw rod are in threaded connection with the movable brackets. Supporting lugs are installed in the middles of the two parallel side faces of the fixed bracket correspondingly, horizontal studs are inserted into small holes of the supporting lugs, limiting nuts in threaded connection with the horizontal studs are arranged on the two sides of the supporting lugs correspondingly, the two ends of the horizontal studs are sleeved with connecting lugs correspondingly, the connecting lugs are fixedly connected with the movable bracket, and the movable bracket is fixedly connected with the movable bracket. The two ends of the horizontal stud are in threaded connection with end nuts, the end nuts are arranged on the sides, away from the supporting lugs, of the connecting lugs, and the supporting seat has the advantages that supporting seats of different specifications do not need to be manufactured, and the supporting seat is suitable for the requirements of different pipelines.

The utility model discloses a reinforcing steel bar splicing device for building engineering, including support, the top and bottom of support surface all are provided with clamp seat, the right side fixedly connected with the jaw of clamp seat, the front of clamp seat is provided with clamping subassembly, clamping subassembly includes the fixed connection of screw bushing of clamp seat front, the inner chamber screw thread connection of screw bushing has screw resistance post, the inner chamber of jaw is provided with the clamping block of slidable, the right -hand member fixedly connected with screw post of clamping block, the right side of jaw is provided with rotatable screw bushing through setting, the utility model discloses the cooperation of jaw and clamping subassembly is used to two different diameter reinforcing steel bars, and the clamping is fixed, and then carries out welding to two reinforcing steel bars through welding machine, when welding, through the cooperation of clamp seat, gear box and elevating unit, the butt joint of upper reinforcing steel bar is carried out and presses down, can reach the purpose of accurate butt joint of axial position and the splicing of different diameter reinforcing steel bars.

The utility model discloses a kind of forming devices of porous alumina ceramics, comprising: reinforcing part, the reinforcing part inside is provided with forming piece, forming plate is provided in the forming piece, upper cover is inserted on the forming piece, and forming plate top end penetrates upper cover, fixed plate is inserted on the upper cover, and fixed plate is inserted with forming plate;Through the screw post of reinforcing part and handle cooperation, reverse rotation can quickly release clamping force, take out forming assembly, through the plug-in block of forming piece and the plug-in slot insertion, after drying, plug-in block can be separated left and right box body, through the fixed plate insertion locking of upper cover, after pulling out, upper cover can be quickly taken down forming plate by lifting, realize efficient demoulding.

The utility model relates to the technical field of industrial factory building independent foundation pouring, in particular to a convenient scaffold for industrial factory building independent foundation pouring, which comprises a scaffold body, the scaffold body comprises a vertical rod, a cross rod, a diagonal bridging and a scaffold board, an adjusting box is arranged at the bottom of the vertical rod, and a foot supporting seat is arranged below the adjusting box. A leveling assembly is arranged between the adjusting box and the foot support seat, a plurality of reinforcing assemblies are arranged below the foot support seat, the leveling assembly comprises a worm gear arranged in an inner cavity of the adjusting box, one side of the worm gear is connected with a worm in a meshed mode, an adjusting stud is fixedly connected to the center of the bottom of the worm gear, and an adjusting screw groove is formed in the center of the top of the foot support seat. When the ground where the scaffold is placed is bumpy and uneven, leveling treatment can be conducted, the situation that the scaffold inclines due to the uneven foundation is avoided, uneven stress, deformation and damage of the vertical rods are avoided, the overall structural strength is guaranteed, meanwhile, unbalance overturning under construction loads due to inclination is avoided, and casualties and property losses are prevented.

The application discloses a sliding ring gap adjusting structure and relates to the technical field of seed meters. The sliding ring is sleeved on the back plate bearing seat, is fixedly connected with the back plate bearing seat in the circumferential direction and can axially slide relative to the back plate bearing seat. The screw post is fixed on the back plate bearing seat. The bolt is threadedly connected with the screw post. The connecting piece comprises a screw sleeve, a convex ring and a twisting block which are coaxially arranged. The screw sleeve is threadedly connected with the screw post. The screw sleeve and the twisting block are fixedly connected with the convex ring at one end, respectively. The through hole is arranged on the sliding ring and corresponds to the screw sleeve. The screw sleeve passes through the through hole. The diameter of the convex ring is larger than that of the through hole. The through hole is located between the screw post and the convex ring. The convex ring is in abutment with the sliding ring. The knob comprises a screwing part and a clamping part which can be clamped in the circumferential direction on the twisting block. The screwing part is provided with a screwing opening. The limiting sheet is connected with the sliding ring through the screw. The limiting sheet is used for limiting the rotation of the screwing part. The size of the finger clamping opening of the finger clamping type seed meter is conveniently adjusted.

The utility model provides a building electromechanical pipeline laying structure which comprises two right-angle angle irons, kidney-shaped holes are formed in the upper surfaces of the right-angle angle irons, detachable lifting pieces used for being installed on an indoor top plate are installed in the kidney-shaped holes, supporting lugs are installed on the vertical portions of the two right-angle angle irons, and the supporting lugs are connected with the right-angle angle irons. Penetrating holes are formed in the opposite faces of the two supporting lugs, a straight threaded cylinder is arranged between the two supporting lugs, two studs are in threaded connection with the interior of the straight threaded cylinder, the ends, located on the outer side of the straight threaded cylinder, of the studs penetrate through the penetrating holes, and limiting nuts are arranged on the two sides, in the length direction of the studs, of the penetrating holes; the two right-angle angle irons are connected with the stud in a threaded mode, the limiting nuts are connected to the stud in a threaded mode, positioning sleeves are installed on the horizontal portions of the two right-angle angle irons, and a lifting piece used for lifting a pipeline is installed between the two positioning sleeves. And right-angle angle irons with different lengths are not required to be manufactured.

The utility model discloses a bean bin cover of a bean grinder, which comprises a cover body and a bin body, the bottom of the cover body is embedded into the inner side of the bin body, an annular magnet is arranged on the inner side of the cover body, a first screw column is arranged above the annular magnet and is integrally connected with the cover body, a plurality of arc-shaped iron bars are arranged on the inner side of the bin body, an air chamber is arranged above the cover body, and a screw cover is arranged at the top of the cover body. The annular magnet is integrally cast, a plurality of screws are arranged in the annular magnet in a penetrating mode, and the screws are connected with the first screw columns through threads after penetrating through the annular magnet; a supporting piece is arranged at the bottom of the arc-shaped iron bar, the supporting piece and the cabin body are formed through integral injection molding, a second screw column embedded into the inner side of the arc-shaped iron bar is arranged on the supporting piece, a plurality of screws penetrate through the arc-shaped iron bar, and the screws penetrate through the arc-shaped iron bar and then are connected with the second screw column through threads; the utility model has the advantages of simple structure, strong stability, stable sealing performance and good usability.

The utility model relates to the technical field of injection molds, and discloses a high-position screw column body forming structure which comprises a plastic column body and an inner mold body, the plastic column body and the high-position screw column body are integrally formed, a forming cavity with an opening in the top is formed in the inner mold body, the plastic column body is located in the forming cavity, and the plastic column body and the forming cavity are coaxially arranged; through tight combination of the plastic column body and the screw column position, firm installation is ensured, the overall performance of a product is not affected, the problem that the appearance surface of the screw column position shrinks is effectively solved, the appearance quality of a plastic product is remarkably improved, the plastic column body is subjected to injection molding through waste materials, the production cost is greatly reduced, and the requirement for raw materials is reduced; meanwhile, the waste treatment cost is also reduced; the problem that the screw column is easily shrunk due to complete glue injection molding is solved.

The utility model provides an integral well completion pipe column relates to well completion pipe column technical field, include: well completion pipe column body, the well completion pipe column body upper end pipe is connected with the oil pipe, the well completion pipe column body outer pipe face welds has the link block, the link block outside inserts the support plate, the support plate is fixed with the link block through the location screw post and the nut and screws, the support plate outside end is connected with the link frame through the limiting block, the link frame and the limiting block interval between the adhesion has the damping block, the link frame side end welds has the well wall fixed part, the well wall fixed part side end is connected with the support plate through the hydraulic buffer, the well completion pipe column body upper end face presses down has the sealing press plate, the sealing press plate lower end face holds the sealing inner race and sealing outer race through the ring air bag. The utility model has solved the vibration load of high pressure fluid impact in prior art well completion pipe column, is easy to cause the problem of the fixed assembly fixed unstable influence well completion pipe column stability.

The application belongs to the technical field of steel pipe finishing, and discloses a long steel pipe automatic finishing equipment, which comprises an operating table, a bearing frame and a finishing robot. The operating table is arranged on a support, a stand is arranged on the operating table, a driving structure is arranged at the bottom of the operating table, a bearing block which is movably connected with the driving structure is arranged on the operating table, a rotating structure and a limiting structure are arranged on the bearing block, the bearing frame is arranged on the stand, an adjusting structure is arranged on the bearing frame, and the finishing robot is arranged on the adjusting structure. The double-shaft motor drives the rotating screw post to rotate, the rotating screw post drives the connecting screw cylinder to move back and forth, the bearing block moves back and forth in the bearing groove on the operating table, the long steel pipe is conveniently held from the appropriate position, the stability of the long steel pipe in the finishing process is improved, the finishing equipment is applicable to long steel pipes of different sizes, the versatility of the finishing equipment is improved, and the application range of the finishing equipment is expanded.

The utility model discloses an extrusion forming die for an aluminum profile of a driving device, which comprises an upper die and a lower die, a die core is arranged at the bottom of a connecting column protruding from the middle of the bottom surface of the upper die, and a plurality of flow dividing holes which are circumferentially spaced and vertically penetrate through the upper die are formed in the periphery of the connecting column; a plurality of forming holes are formed in the peripheral wall of the mold core in an inwards-concave mode and penetrate through the lower end face of the mold core, and a forming wall is arranged between every two adjacent forming holes. The forming holes comprise larger screw column forming holes and smaller tooth forming holes; a flow guide opening is formed in the position, corresponding to the screw column forming hole, of the joint of the connecting column and the mold core in a concave mode, and the flow guide opening is inwards concave and downwards extends to communicate with the screw column forming hole. The width of the forming wall is larger than that of the tooth forming hole, and a mold core flow stopping block is arranged on the forming wall in an outward protruding mode. Therefore, the structural strength of the screw column of the extruded aluminum profile can be effectively improved.

The utility model relates to the field of charging piles, in particular to a magnet adsorption quick mounting structure for a charging pile, which comprises a lower shell, an upper shell is arranged at the top of the lower shell, two first positioning columns are fixedly connected to the left side of the bottom of the upper shell, and threaded holes are formed in the tops of inner cavities of the first positioning columns. A countersunk head screw is arranged at the bottom of the first positioning column, and the surface of the countersunk head screw is sleeved with a magnet. Through the arrangement of the limiting mechanism, the effect of fixing the position of the cross-shaped round-head screw is achieved, the cross-shaped round-head screw is not prone to shaking when connected with a large flat-head screw column, meanwhile, when threads on the surface of the cross-shaped round-head screw are abraded, the cross-shaped round-head screw can be easily and conveniently detached, a user can conveniently replace the cross-shaped round-head screw, and the practicability of the cross-shaped round-head screw is improved. And due to the arrangement of the locking mechanism, the wedge-shaped block is tightly pressed in the inner cavity of the positioning block through the resilience force of the second spring, so that tight and stable connection between the upper shell and the lower shell is ensured.

The utility model relates to the technical field of robot automatic gluing, and discloses a tool for robot automatic gluing rapid teaching, which comprises a base, the top of the base is rotatably connected with a mechanical arm, the bottom of the mechanical arm is fixedly connected with a fixing block, the bottom of the fixing block is fixedly connected with an arc-shaped block, and the arc-shaped block is fixedly connected with the bottom of the mechanical arm. The outer wall of the arc-shaped block is fixedly connected with a threaded column, the outer wall of the threaded column is in threaded connection with a connecting column, the bottom of the connecting column is fixedly connected with a plurality of fixing columns, the bottom side of the connecting column is fixedly connected with a buffer spring, and the bottoms of the fixing columns are fixedly connected with a fixing disc. According to the buffering device, the conical block on the fixing disc is taken down firstly, then a new L-shaped clamping block is inserted into the clamping hole, rapid replacement is achieved, when different buffering springs are replaced, only the connecting column needs to be rotated to remove connection on the threaded column, replacement can be completed, and then the buffering device adapts to different metal plate gaps.

The utility model relates to the technical field of resistance welding, and discloses a resistance welding transformer for welding aluminum plates, which comprises a welding head, a mounting shell is fixedly mounted at the top of the welding head, a sealing plate is arranged on the outer wall of the mounting shell, the inner wall of the sealing plate is in threaded connection with a fixing bolt, the inner wall of the welding head is in sliding connection with a sliding plate, and the sliding plate is in threaded connection with the sealing plate. The outer wall of the sliding plate is slidably connected with a lifting L-shaped plate, and the top of the lifting L-shaped plate is provided with a transformer body. By rotating a rotating rod, the rotating rod drives bevel gears to rotate, the two bevel gears rotate at the same time through meshing, then a threaded column rotates, the threaded column drives a lifting block to move upwards, a lifting L-shaped plate drives a transformer body to move upwards, at the moment, a pull rod is pulled, and then the pull rod drives a locking plate to move; and at the moment, a sliding plate is pulled, so that the sliding plate drives the lifting L-shaped plate and the transformer main body to move out of the inner wall of the welding head, and the welding head can be observed conveniently.

The present discloses a waterproof socket for solving the technical problems of poor design of waterproof structure and assembly structure design of related parts of existing similar products. The socket is sealed and fixed to a module hole in a socket shell, a connecting body and a protection film are arranged between the bottom bracket and the socket body, a through hole of the connecting body and a through hole of the protection film are aligned with the through hole of the socket body, and the bottom bracket is sealed and fixed to the socket body by the connecting body, a sealing ring is arranged at the connection between the connecting body and the socket body, and the bottom of the connecting body is arranged with long and short screw posts.

The utility model relates to the technical field of engineering supports, in particular to a medium and heavy type welding damping double-wheel which comprises an upper plate, a main rivet and a lower plate, the lower end of the upper plate is fixedly connected with a buckle cover, the lower end of the buckle cover is rotatably connected with the lower plate, the bottom end of the main rivet is rotatably connected with the upper portion of the lower plate, and the lower end of the main rivet is rotatably connected with the lower plate. The two sides of the bottom end of the lower square plate are fixedly connected with supports. According to the medium-heavy type welding damping double-wheel, the supports are made of high-strength stainless steel materials, the first screw column penetrates through the inner sides of the two parallel supports, the protruding position of the outer side of the first screw column on the outer sides of the supports can be sleeved with the transverse plate, then the two ends of the first screw column are fixed by screwing nuts, and the other end of the transverse plate penetrates through the second screw column; the aluminum core polyurethane wheels which are tightly connected with the inner sides are fixed through the supports arranged on the two sides, the whole double-wheel structure is compact, the borne weight of the double-wheel structure can be shared by the supports and the transverse plates, and the pressure bearing and load bearing capacity of the medium-heavy type welding damping double-wheel structure is greatly improved.

The utility model discloses a gas-assisted molding structure for a mold, which comprises a gas channel and a gas nozzle, the gas channel passes through a rear mold plate and a rear mold core and extends into a rear mold main body insert, the rear mold main body insert is provided with a gas nozzle mounting port, and the gas nozzle is mounted in the gas nozzle mounting port and is connected with an exhaust port of the gas channel; a gas groove is formed in the edge of the rear mold main body insert and is communicated with a screw stud forming groove and a gas nozzle mounting opening in the rear mold main body insert. Blowing is started at the initial stage of glue injection, and gas is sprayed out through the gas nozzle after passing through the gas channel. Gas enters the screw stud forming groove through the gas groove, so that a hollow structure is blown out of the thick glue position, and the product forming defect caused by the too thick glue position of the screw stud is overcome.

The invention provides an anti-falling force-bearing fastening device for repairing a stud on a cartridge receiver, and relates to the technical field of aero-engine cartridge receivers, the anti-falling force-bearing fastening device comprises a first cartridge receiver and a second cartridge receiver, the outer surface of a bolt is in threaded connection with a nut, and a fastening assembly is arranged on the side, close to the bolt, of the outer surface of the first cartridge receiver; a backing ring is fixedly connected to the end, away from the welding block, of the rotating rod, protruding blocks are fixedly connected to the two sides of the outer surface of the shaft block correspondingly, a pressing block is fixedly connected to one end of the shaft block, and two groove rods are fixedly connected to the top end of the welding block. The fastening assemblies are additionally arranged at the positions, where bolts are used for installation and connection, of the outer surface of the cartridge receiver, the bolts entering the outer surface of the cartridge receiver for connection penetrate through the backing rings of the fastening assemblies, the positions of the bolts are fastened through the pressing blocks, and when the bolts are maintained, the positions of the bolts can be temporarily limited through the backing rings; and maintenance is facilitated, and meanwhile follow-up bolt installation is facilitated.

The utility model discloses a fireproof glass transfer device which comprises a cart, a rolling rod and a telescopic rod, a plurality of brakes are installed on the side face of the cart, a support is fixedly connected to the left side face of the cart, the rolling rod is fixedly connected with the support, a bandage is installed on the rolling rod, the other end of the bandage is fixedly connected with the support, and a hole disc is arranged at the upper end of the rolling rod. The two telescopic rods are installed on the upper portion and the lower portion of the support, the upper telescopic rod is rotationally connected with a supporting plate, and the lower telescopic rod abuts against the supporting plate. The supporting plate can be jacked by rotating the stud at the lower part, so that the supporting plate is inclined, the glass is placed on the trolley to lean against the supporting plate, a plurality of pieces of glass with different sizes are conveniently placed, the glass is bound by using a binding band, the safety and the stability of glass transfer are improved, and the movement of the trolley can be limited by treading a clamp to enable a second supporting leg to be attached to the ground. The first supporting legs are in contact with the ground, so that the trolley can be prevented from inclining, and certain heavy glass can be more stably loaded on the trolley.

The utility model provides a saw blade locking device, include: output shaft and locking block, the output shaft upper end is provided with the cushion block, the cushion block is provided with the reverse tooth thread hole, the reverse tooth thread hole spiral line rotation direction is opposite with output shaft rotation direction, the locking block is provided with the reverse tooth screw post in vertical direction, the reverse tooth screw post cooperates with the reverse tooth thread hole, the locking block is provided with the pin, when the reverse tooth screw post is spun into the reverse tooth thread hole, the locking block cooperates with the cushion block on the output shaft upper end to lock the saw blade and the pin is clamped into the positioning hole of saw blade, when the machine is in the use process and the saw blade meets the resistance, the saw blade passes through the pin and gives the locking block power, thereby makes the output shaft relatively locking block produces the rotation of the tightening direction, the locking block drives the reverse tooth screw post to spin into the reverse tooth thread hole, makes the locking block and the cushion block lock the saw blade, forms the self locking effect.

The utility model relates to the technical field of metallurgical steel rolling equipment, and particularly discloses a sealing structure of an output flange of a primary speed reducer of a converter tilting device, which comprises a primary speed reducer box body, the flange seat is welded on the outer side of the primary speed reducer box body; the gear shaft is arranged in the primary speed reducer box body, a bearing is mounted on the gear shaft, and a plurality of fastening studs are mounted outside the flange seat; according to the utility model, through the arrangement of the flange seat, the bearing and the fastening stud, the bearing hole on the flange side adopts a blind hole structure, and the combined processing link of the flange and the end cover is omitted, so that three processing parts are reduced, in addition, positioning pins and connecting bolts required by the two end covers are omitted, and the cost is reduced. By means of the design, oil leakage accidents can be effectively prevented in actual use, the structure is reasonable, the machining difficulty is reduced, the assembly time is shortened, and the sealing reliability is guaranteed through the overall sealing face of the flange.

This invention relates to the field of multi-station machining technology, and more particularly to a multi-station synchronous machining fixture based on screw post positioning. The fixture includes a slide, a fixing mechanism above the slide, a buffer assembly on one side of the fixing mechanism, and an adjustment mechanism on one side of the slide. This multi-station synchronous machining fixture based on screw post positioning, through the coordinated arrangement of a support plate, a scale, a slide groove, a threaded rod, a measuring rod, a force-bearing button, and a limiting rod, can perform top-mounted clamping positioning of screw post-type workpieces. The height of the support plate is read by the measuring rod, and the sliding distance is read by the scale and the limiting rod. The coordinated arrangement of the support rod, the guide rod, and the pressure plate provides elastic buffering clamping to the circumference of the workpiece. The coordinated arrangement of the guide rail, the slider, the bidirectional threaded screw, the disc gear, the transmission gear, and the force-bearing rod enables multiple sets of slides to move synchronously closer or further apart, achieving multi-station synchronous adjustment and synchronous machining.

This utility model discloses a gas valve seat mold, including a base plate, a lower mold, an upper mold, and four screws for connecting the base plate and the lower mold. The base plate has a through hole at the connection point, and a protrusion extending towards the axis is located in the middle of the inner wall of the through hole. The bottom of the screw protrusion is attached to the top of the protrusion, and its screw post faces upwards and connects to the lower mold. A locking block is engaged with the protrusion, and the locking block has a slot in its middle that opens to one side, forming an upper plate and a lower plate. The slot engages with the protrusion. The upper plate has a notch for the screw to enter, and the screw is engaged in the notch. The lower surface of the upper plate presses against the top surface of the screw protrusion. The lower plate has a screw hole, which is a through hole. A pre-tightening bolt connects to the screw hole and abuts against the lower surface of the protrusion. The base plate of this mold does not have threaded holes, eliminating the need to consider thread stripping issues later, resulting in a long service life and overcoming the thread stripping phenomenon caused by frequent mold disassembly and assembly.