493results about How to "Improve clamping effect" patented technology

The utility model discloses a luggage case convenient to use when going out, which comprises a case body, and a plurality of raised lines are arranged on the inner walls of two opposite sides of the case body; the partition plates are connected to the inner side wall of the box body in a sliding mode and divide the interior of the box body into a plurality of storage cavities, the two side edge ends of each partition plate are provided with a plurality of pliers and tweezers mechanisms used for clamping and fixing the protruding strips, and the pliers and tweezers mechanisms clamp and fix the protruding strips on the corresponding sides and limit the sliding positions of the partition plates in the box body; the telescopic insertion plate assemblies are located in the storage cavities and are in sliding connection with the partition plates or the box walls close to the side, and the telescopic insertion plate assemblies are used for partitioning the storage cavities. According to the novel storage box, the storage space and the number of the storage grids can be reasonably divided according to the storage condition, the size and the number of the storage cavities are divided according to the needs of a user, and the storage space and the number of the storage grids can be reasonably divided according to the needs of the user; and the user can better store articles in a classified manner, and the travel convenience is improved.

The invention relates to the technical field of hemostatic clips, in particular to a chuck mechanism and a hemostatic clip. In order to solve the technical problem that an existing hemostatic clip has defects, according to the chuck mechanism and the hemostatic clip, the boss is arranged at the tail of the clamping piece, the locking table is arranged on the movement path of the boss, and the clamping piece is locked in the clamping state through the limiting effect of the locking table on the boss. The mode is easy and convenient to operate, the clamping and closing effect is good, foreign matter cannot be additionally generated, and troubles cannot be caused to patients and medical staff.

The utility model discloses a high-strength right-angle fastener, which relates to the related field of fasteners and comprises a fixing seat, a fastener is hinged to the left front end of the fixing seat, a screw at the right front end of the fixing seat penetrates through a concave plate on the right side of the fastener, and an anti-skid mechanism is arranged on the inner front end face of the fixing seat. The friction force between the right-angle fastener and the steel pipe is increased through the gasket and the friction increasing column, so that the anti-skid effect of the right-angle fastener during use is enhanced, the assembling efficiency of the scaffold is effectively improved, and the clamping effect of the scaffold is enhanced through elastic potential energy; according to the right-angle fastener, the reinforcing mechanism is arranged on the front end face of the fastener, and the fastener is reinforced through the reinforcing plate, the positioning rod and the central column, so that the overall structural strength of the right-angle fastener is enhanced, the right-angle fastener is prevented from being deformed during use, the service life of the right-angle fastener is effectively prolonged, and the safety of assembly work is effectively improved.

The invention relates to the technical field of transport rolling unloading operation, in particular to a ship unloader berthing rolling unloading system and method.The ship unloader berthing rolling unloading system comprises a rigid string protection mechanism and a rolling unloading mechanism, and the rigid string protection mechanism is arranged at the edge of a transport ship; the rolling unloading mechanism comprises a deck bridge head, a sleeper, an ashore bridge head, a slope track and a rigid gap bridge, and the deck bridge head is fixedly arranged on the transport ship and corresponds to the deck track; the sleeper is fixedly arranged on the berthing wharf, the ashore bridge head is arranged at the top, one end of the rigid gap bridge is hinged to the ashore bridge head, the other end of the rigid gap bridge is in free lap joint with the deck bridge head, one end of the slope track is located on the wharf track, and the other end of the slope track is located on the sleeper and connected with the ashore bridge head. By changing the traditional roll-roll loading mode of jacking, steering and rail falling and the conventional berthing mode of the transport ship, the effect that the ship unloader unloads the ship from the transport ship conveniently is achieved, the ship unloading risk of the ship unloader is reduced, and the working efficiency of roll unloading operation of the ship unloader is improved.

The utility model discloses an auxiliary device for erecting an electric power high-voltage transmission cable, and belongs to the field of electric power operation auxiliary equipment. An auxiliary device for erecting a power high-voltage transmission cable comprises a mounting base which is of a double-layer structure, and further comprises four groups of positioning bottom feet which are rotatably connected to the inner wall of the mounting base and are uniformly arranged; the supporting telescopic column is mounted on the top wall of the mounting base, and the top of the supporting telescopic column is connected with a conveying plate; the control mechanism comprises a transmission assembly and a gear assembly, the output end of the gear assembly is connected with a third rotating roller and a fourth rotating roller, a sliding groove is formed in the top wall of the conveying plate, and the third rotating roller and the fourth rotating roller are slidably connected to the inner wall of the sliding groove. The conveying mechanism is arranged on the top wall of the conveying plate; according to the utility model, the conveyed power transmission line can be clamped at any time, the tension of the installed power transmission line can be adjusted, the mechanism is simple, the conveying is convenient, and the use process is stable.

The utility model relates to a finish turning excircle tooling for processing high hardness thin wall cylindrical part, including support shaft sleeve, expansion sleeve, support piece, wedge block, pull rod, pressure plate, bolt and thin wall cylindrical part, the expansion sleeve is provided in the thin wall cylindrical part, the outer ring surface of expansion sleeve is matched with thin wall cylindrical part inner surface, the support shaft sleeve extends into the expansion sleeve, the support piece is provided with the wedge block, the pull rod is provided with the pressure plate, the bolt is provided with the pressure plate. Wedge blocks and a supporting piece are arranged between the expansion sleeve and the supporting shaft sleeve, the two wedge blocks are symmetrically arranged on the supporting shaft sleeve in a sleeving mode, the supporting piece is arranged between the two wedge blocks in a clamping mode, one wedge block is limited through a shaft ring of the supporting shaft sleeve, the other wedge block is limited through a pressing plate, the pressing plate is connected with a pull rod through a bolt, and the pull rod is arranged in the supporting shaft sleeve. The wedge block and the expansion sleeve are in wedge-shaped connection, and the wedge block and the supporting piece are in wedge-shaped connection. The clamp is simple in structure, the whole expansion sleeve expands outwards, a machined workpiece is evenly stressed, the clamping effect of the clamp is enhanced, and the machining precision is greatly improved.

The utility model discloses a centring and clamping mechanism applied to round metal piece, including bottom plate, clamping cylinder, wedge plate and positioning and clamping mechanism, the middle part of bottom plate is equipped with the positioning and clamping mechanism along Y axis, wedge plate nests and sets up in the positioning and clamping mechanism, one side of bottom plate is fixed with clamping cylinder, and the clamping cylinder is fixed with the clamping cylinder. The telescopic end of the clamping air cylinder is in locking connection with a wedge plate, and the bottom of the wedge plate is fixedly connected with a bottom plate through an X-axis linear guide rail. The positioning and clamping mechanism comprises two oppositely-arranged clamping plates, a positioning groove for containing the circular workpiece is formed between the clamping plates, a clamping air cylinder drives a wedge plate to move along the X axis, the wedge plate drives the two clamping plates to move oppositely, and the positioning groove clamps or loosens the circular workpiece. The centering clamping device is high in clamping force and precision, precision loss or fatigue cannot be caused after the centering clamping device is used for many times, and a round metal piece can be accurately centered and clamped.

The present invention relates to the field of gear burr grinding and processing equipment, and in particular to a universal gear processing equipment, including a grinding power chassis, and also including a clamping mechanism rotatably connected to the grinding power chassis, the clamping mechanism including a chuck, the peripheral wall of the chuck is provided with an oil hole one along its radial direction, and the oil hole one is distributed in a pair along the axial direction of the chuck. The clamping mechanism of the universal gear processing equipment combines the advantages of existing pneumatic chucks and hydraulic chucks. The driving part of the device can make full use of the working characteristics of compressed gas through the design of cover plate 2, airbag and adapter plate, provide reliable and convenient initial pressure for the chuck, and further amplify the thrust on the clamping claw through a very compact jack structure composed of a piston rod and a bearing piston, so as to achieve reliable clamping performance. The clamping mechanism realizes the convenience and quick action of pneumatic operation, and also realizes the high clamping force of hydraulic drive.

The invention provides a tool for machining a rear cover of an automobile air conditioner compressor. The tool comprises a tool table, and a clamp is connected to the upper surface of the tool table; the clamp comprises an air cylinder connected to the upper surface of the tool table, a pressing plate connected to the top end of a piston rod of the air cylinder and a supporting plate connected to the surface of one side of the air cylinder. The bottom end of the air cylinder is connected with an angle adjusting assembly, and the bottom end of the air cylinder is connected with the tool table through the angle adjusting assembly. The clamp can adapt to the shape of the rear cover of the air conditioner compressor, and the clamping effect of the rear cover is improved.

The invention provides a flexible clamping jaw for a spacer mounting robot and a using method of the flexible clamping jaw, and relates to the technical field of spacer mounting, the flexible clamping jaw comprises a mounting base, a sliding base, a rotating device, a rotating joint, power equipment and a pressing clamping jaw, the mounting base is mounted at the output end of the mounting robot, and the sliding base is slidably connected to the mounting base; the input end of the rotating device is connected to the sliding base, the output end of the rotating device is connected to the rotating connector, one side of the rotating connector is connected with the power equipment, and the pressing clamping jaw is connected to the output end of the power equipment and used for clamping or disengaging from the chuck. According to the spacer clamping device, the rotating and sliding component is connected with the pressing clamping jaw, the spacer clamping device has multiple degrees of freedom and can clamp a clamping head of a spacer from all directions, the pressing clamping jaw can be directly moved to a deviation position through the rotating and sliding component, and the clamping effect is good; the pressing clamping jaw can clamp the chuck, and after the chuck is fixedly connected with the split conductor, the chuck can be quickly separated from the split conductor through power equipment, so that the installation operation is relatively flexible.

The invention relates to the technical field of mechanical arms, and discloses a high-safety multifunctional mechanical arm which comprises a bottom plate, a control panel and a rotating rod, a linear motor is fixedly mounted in the middle of the interior of the bottom plate, a mounting base is fixedly connected to the top of the output end of the linear motor, and the high-safety multifunctional mechanical arm further comprises a clamping assembly arranged in a mounting box, an adjusting assembly is arranged at the top of the mounting base; the clamping assembly comprises a first motor, the first motor is fixedly installed in the middle of the inner top face of the installation box, the output end of the first motor is fixedly connected with a lead screw, the inner bottom face of the installation box is symmetrically and fixedly connected with limiting rods, and the outer side of the lower portion of the lead screw is in threaded connection with a moving plate. And the bottom of the moving plate is fixedly connected with an extrusion rod, and the problems that when two vertically-arranged clamping plates are used for carrying out clamping operation on a workpiece with an irregular shape, the workpiece is inconvenient to stably clamp, and the follow-up moving and machining efficiency of the workpiece is reduced are solved.

The present invention discloses a welding device based on a prefabricated box girder steel bar skeleton, which specifically relates to the technical field of box girder processing, including a workbench, a fixed seat is vertically installed in the middle position on one side of the upper surface of the workbench, a welding robot is detachably installed on the upper surface of the fixed seat; and a connecting piece is rotatably installed on one side of the fixed seat. The present invention completes the active switching of two limiting mechanisms through a power mechanism, and at the same time drives multiple clamps on the limiting mechanism to act synchronously, thereby completing the internal and external multiple clamping and fixing of the stirrups, and can additionally complete the top limiting action of the stirrups, and can complete the synchronous control of the clamps in different positions, making the welding work more efficient, and can complete the active feeding action of the limiting mechanism under the welding platform through the feeding mechanism, thereby completing the pre-installation action of the stirrups, and subsequently driving the welding platform to complete the flipping to complete the continuous welding action, thereby improving the welding efficiency.

The utility model discloses filling equipment which comprises a sterile bin, a clamping component, a transmission component, a power component and a steam barrier bin, the clamping component is located in the sterile bin, the power component is located outside the sterile bin and the steam barrier bin, and the transmission component penetrates through the steam barrier bin to be connected with the clamping component and the power component. According to the utility model, the clamping parts which can be thoroughly sterilized are all arranged in the sterile bin, the power part which is difficult to thoroughly sterilize is arranged outside the sterile bin, and the transmission part is used for transmission, so that the power part can stably drive the clamping parts in the sterile bin outside the sterile bin; the steam barrier bin can prevent bacteria in outside air from entering the sterile bin, sterilization operation can be carried out on the transmission part arranged in the steam barrier bin in a penetrating mode through high-temperature steam, the situation that the transmission part carries the bacteria from the outside to enter the sterile bin in the moving process is avoided, the sterile environment of the sterile bin can be kept for a long time, and then stable sterile filling is guaranteed.

The utility model is applicable to the field of coating plating, and provides a chemical reaction kettle inner wall anticorrosive coating plating device, which comprises a rack, a reaction kettle, a rotating component and a fixing component, the rotating component and the fixing component are mounted on the rack, the rack comprises a base and a mounting box, the reaction kettle comprises a kettle body and a kettle cover, and the kettle body and the kettle cover are fixedly connected through a connecting piece. A discharging port is fixedly formed in the side face of the kettle body, a plurality of feeding ports are fixedly formed in the side face of the kettle cover, the rotating assembly comprises a driving device and a rotating chuck, and the fixing assembly comprises a fixing base, a plurality of telescopic cylinders, a movable plate and a chuck. A pipe opening used for adding plating liquid is reserved, the reaction kettle is completely sealed after the plating liquid is added, driving equipment is started to drive the reaction kettle to rotate, and the inner wall of the reaction kettle is uniformly plated under the influence of centrifugal force and the gravity of the plating liquid.

The invention discloses an electric needle clamp for acupuncture and moxibustion, an electric needle assembly and an electric needle apparatus with the assembly. The electroacupuncture device comprises a positioning seat, a suction cup is fixed to the lower end face of the positioning seat, a first vertical plate is installed on the upper end face of the positioning seat, needle clamping pieces are symmetrically arranged on the two sides of the first vertical plate, the middle of each needle clamping piece is hinged to the first vertical plate, and a first torsional spring is installed at the joint of the middle of each needle clamping piece and the first vertical plate. The electric needle body is detachably connected with the needle clamping pieces, and a fastening structure is arranged between the rear end parts of the two needle clamping pieces. The electroacupuncture clamp has the advantages that the electroacupuncture body is prevented from falling off from the electroacupuncture clamp due to movement of the body of a patient; the clamping effect of the two needle clamping pieces on the electric needle body is improved; accurate clamping of the electroacupuncture bodies with different lengths is realized; the phenomenon that the clamping effect is reduced due to the fact that the two needle clamping pieces deviate and are staggered in the rotating process is avoided; and the needle clamping sheet can firmly clamp the electric needle body all the time.

The utility model discloses a locking mechanism for fixing a communication case, and relates to the field of communication cases, the locking mechanism comprises a communication case main body, the inner wall of the communication case main body is provided with a bottom plate, the top of the bottom plate is provided with a plurality of arc-shaped grooves and a locking assembly, and the locking assembly comprises a plurality of pressing rods. By arranging the locking assembly, when the pressing rod moves downwards, the pressing rod can push the stop block to move downwards, the stop block pushes the guide rod to move downwards and extrudes the second spring, meanwhile, the guide rod drives the push plate to move downwards, and the push plate pushes the movable blocks on the two sides to move at the same time, drives the fixing sleeve to move and then drives the connecting rod and the clamping block to move. And along with continuous movement of the fixing sleeve, the clamping blocks and the connecting rods extrude the first springs, so that the first springs are compressed under stress, and meanwhile, the clamping blocks are tightly attached to the cable under the counter-acting force of the first springs, so that the cable can be clamped, three surfaces of the cable are extruded, and the stability of the cable is improved.

The utility model discloses an image reading device which comprises a reading machine, the reading machine comprises a supporting sleeve, a supporting rod and a reading plate, the supporting sleeve is provided with an adjusting box and an adjusting rod, the adjusting rod is provided with an adjusting gear, the supporting rod is provided with an adjusting rack, the reading plate is provided with a comparison plate, the reading plate is provided with a hinge plate, and the comparison plate is provided with a hinge shaft. A limiting groove and a sliding groove are formed in the hinged shaft, a limiting block is arranged in the limiting groove, sliding blocks are arranged on the two sides of the limiting block, a limiting annular groove and a limiting groove are formed in the hinged plate, pressing devices are arranged on the film reading plate and the comparison plate, and when the sliding blocks are located in the limiting annular groove, steering movement of the comparison plate and the film reading plate is facilitated; when a sliding block extends into a limiting groove under the action of a limiting spring, the position of a comparison plate is convenient to fix, then the comparison plate is convenient to stretch and retract, through cooperation of an adjusting gear and an adjusting rack, a supporting rod is driven to adjust the vertical height, and then the height of a film reading plate is adjusted.

The utility model provides a fixing buckle assembly for a curtain pull rope. The fixing buckle assembly comprises a lower rail buckle arranged on a curtain lower rail in a clamped mode and a pull rope buckle arranged at an inner hole of the lower rail buckle. At least one first clamping groove is formed in the bottom face of the pull rope buckle and extends in the radial direction to penetrate through the inner wall face and the outer wall face of the pull rope buckle, and the top of the first clamping groove is narrowed. A second clamping groove corresponding to the first clamping groove is formed in the inner wall of the pull rope buckle, the bottom end of the second clamping groove extends to the first clamping groove, and the top end of the second clamping groove extends to the top face of the pull rope buckle. The structure is simple, the number of clamping matching parts is increased, the overall clamping effect can be enhanced, and loosening is effectively prevented.

The utility model relates to the technical field of medicament production, and discloses a mixing device for medicament production, which comprises a main body, the right side of the main body is fixedly connected with a feed port, the main body is internally provided with a stirring control mechanism, and the left side of the main body is provided with a sampling device. A first motor drives a first belt wheel to rotate, then a second belt wheel drives a cylindrical cam to rotate, the cylindrical cam drives a limiting column to move in a groove of the cylindrical cam, the limiting column drives a pressing plate to move, meanwhile, the cylindrical cam drives a first gear to rotate, and then the first gear drives a second gear to rotate; a first gear and a second gear respectively drive a first stirring blade and a second stirring blade to rotate, so that raw materials sinking to the bottom of the main body are crushed through a pressing plate in the stirring process, the stirring effect is further improved, the stirring speed is increased, and the medicament is stirred more sufficiently.

The present invention discloses a portable online shaft power measurement and calibration device, comprising an installation test component, a movable component, and a C-type fixed component. The installation test component is located on one side of the whole device, and the movable component is fixedly installed at one end of the installation test component, and the C-type fixed component is fixedly installed at one end of the movable component away from the installation test component. The present invention is scientific and reasonable, safe and convenient to use, has no impact on the original equipment and shaft system during the installation process, and the installation process is simple, which greatly improves the online calibration of the fixed-mounted shaft power meter. It is the first case to synchronously compare the data measured by the device with the data collected by the fixed-mounted central shaft power meter. The design of the relative rotation of the first connecting rod and the second connecting rod in the device, and the design of the pull-out and adjustable second connecting rod make the fixed position of the C-type clamping support more flexible, and also make the clamping effect of the device on the antenna more stable, which is beneficial to the stability of the signal.

The utility model relates to the technical field of roller machining, in particular to a laser cutting device for roller machining, which comprises a workbench, a feeding component is arranged at one end of the workbench, a bracket is slidably connected onto the feeding component, and guide rods are slidably connected onto the feeding component and positioned on two sides of the bracket respectively. A lead screw assembly is installed on the feeding assembly, the feeding assembly reciprocates under the action of the lead screw assembly, the end, away from the feeding assembly, of the bracket is connected with a clamping assembly, the clamping assembly is arranged on a control table, a feeding cavity is formed in the control table and is in a square shape, a cutting assembly is installed on the control table, and a controller is installed on one side of the control table. The feeding assembly, the lead screw assembly, the clamping assembly and the cutting assembly are all electrically connected with the controller. The device designed by the utility model is simple and reasonable in structure and novel in design, has the characteristics of simplicity in operation, good clamping effect, high applicability and capability of automatically rotating the clamping piece, and has higher practicability.

The utility model relates to a refrigerator field especially relates to a wire harness positioning structure and refrigerator. Wire harness positioning structure includes buckle and base, and the hollow setting of buckle, the inner wall of buckle is used for fixed wire harness, and the outer wall of buckle is convex and sets up the limit bulge, base is connected in the refrigerator body, and the hollow setting of base, the inner wall of base is set up and limits the groove, and the buckle is connected in the base, and limit bulge and limit groove are connected. Its advantage lies in, limit bulge and limit groove can be mutually connected, and then realized the circumferential angle positioning between buckle and base, effectively prevented wire harness from rotating after installation, solved the problem that wire harness angle is uncontrollable in the prior art, and simultaneously, the joint cooperation also provided radial constraint, enhanced the connection strength and stability of overall structure, made it can better resist the impact and pressure produced in processes such as foaming process.

The invention discloses a wire clamp which comprises a main box body, a wire clamp shell and a wire clamp seat arranged in the wire clamp shell, an installation groove is formed in the wire clamp shell, the wire clamp seat is placed in the installation groove, two inner wire clamping through holes are formed in the wire clamp seat, more than one first insertion groove is formed above each inner wire clamping through hole in parallel, and the first insertion groove and the second insertion groove are arranged in parallel. An upper aluminum pressing column is inserted in each first inserting groove, more than one upper thorn piece is vertically arranged below each upper aluminum pressing column, an aluminum sliding block is connected below each inner wire clamping through hole in an up-down sliding mode, more than one second inserting groove is formed in the upper portion of each aluminum sliding block in parallel, and a lower aluminum pressing column is inserted in each second inserting groove. More than one lower stabbing piece is vertically arranged above each lower aluminum pressing column, the lower stabbing pieces and the upper stabbing pieces are symmetrically arranged, a torque screw rod is rotatably connected below each aluminum sliding block, and the screw rod part of the torque screw rod is in threaded connection with the bottom of the wire clamp seat. According to the structure, the cable clamping effect is improved.

The utility model relates to the technical field of mold manufacturing equipment, and discloses a release agent spraying device which comprises a lower base, a lower mold and a limiting rod are arranged on the top side of the lower base, and an upper base and an upper mold are connected to the outer side of the upper end of the limiting rod in a sleeved mode. In the mold closing process, the motor drives the threaded rod to rotate, so that the two threaded sleeves drive the corresponding frames to move relatively, a release agent is conveniently and preferentially sprayed to the lower mold and the upper mold at different speeds in the mold closing process, and the mold closing device is convenient and fast to use; the stability of the frame in the moving process is improved under the combined action of the sliding rods and the sliding sleeves, the mold is sprayed at the same time under the action of the corresponding four sets of spraying assemblies, overall spraying is uniform and rapid, the manual spraying time is greatly shortened, and the machining efficiency is improved. And under the action of the splash-proof frame, peripheral sputtering during spraying of the spray head can be reduced, so that the overall working environment is improved, and the phenomenon of non-uniform spraying is avoided.

The utility model discloses a ground rail type conveying belt, which relates to the technical field of conveyors and comprises a ground rail trolley, two sliding rails are connected to the top of the ground rail trolley, supports are connected to two sides of the top of the ground rail trolley, servo electric cylinders are mounted above one sides of the two supports, and the output ends of the servo electric cylinders are connected with clamping plates. One side of the clamping plate is connected with a clamping pad, and the other side is connected with a roller. Through the arrangement of the support, the servo electric cylinder, the clamping plates and the sliding rails, after feeding, the output end of the servo electric cylinder drives the clamping plates to move, the clamping plates abut against goods, the phenomenon that the goods are collided or fall off due to displacement is avoided, the stability in the transferring process is improved, the clamping plates are n-shaped, collision between the clamping plates and a conveying belt is avoided, and the working efficiency is improved. The slide rails are arranged to assist in supporting the clamping plates; and the phenomena of collision and falling of the goods are effectively avoided.

The utility model discloses a mould for producing a pump cover, which relates to the technical field of moulds, and comprises an upper mould body, the outer wall of the upper mould body is fixedly connected with a connecting ring, the inner wall of the connecting ring is provided with a circular hole, the outer wall of the circular hole is provided with a lengthened bolt, the outer wall of the lengthened bolt is in threaded connection with a circular ring, and the circular ring is provided with a through hole. A supporting block is fixedly connected to the outer wall of the circular ring, and a mounting hole is formed in the inner wall of the supporting block. According to the mold for producing the pump cover, the upper mold body, the connecting ring, the circular hole, the lengthened bolt, the circular ring, the supporting block, the mounting hole, the vertical locking bolt and the inserting block are matched for use, so that the mold for producing the pump cover is convenient to assemble, the mold assembly process is more accurate, the mold assembly effect is good, the upper mold body and the lower mold body are fixed through the lengthened bolt, and the mold assembly efficiency is improved. And the vertical locking bolts are screwed through the mounting holes, so that the upper mold body and the lower mold body can be firmly fixed and closed, the mold closing is better, and the use requirements of people can be met.

The utility model discloses a dental diaphragm color measurement sample fixing device which comprises an L-shaped mounting base and a spring clamping mechanism, and the L-shaped mounting base comprises a horizontal base and a clamping base plate vertically connected with the horizontal base; the spring clamping mechanism comprises a fixing seat, a clamping seat and a spring, the fixing seat is vertically and fixedly connected to the top of the horizontal base, the clamping seat extends in the direction perpendicular to the horizontal base and is located between the fixing seat and the clamping base plate, clamping lug plates are symmetrically arranged on the two sides of the clamping seat, and the clamping lug plates are connected with the spring. The clamping base plate, the fixed seat and the clamping seat are correspondingly provided with test light channels along the direction parallel to the horizontal base, and the spring is elastically connected between the clamping seat and the fixed seat in a compressed manner, so that the clamping seat can directionally move to be close to or far away from the clamping base plate. The sample fixing device for color measurement of the dental diaphragm is convenient to operate and good in clamping stability.

The invention relates to the technical field of clamping mechanisms, and discloses a sheet metal clamping air cylinder in order to solve the technical problems that an existing product lacks a self-locking function, stability of a workpiece is difficult to keep, and accurate clamping is difficult to achieve, the sheet metal clamping air cylinder comprises an upper cylinder body and a lower cylinder body, a piston is arranged in the lower cylinder body, and the piston is fixedly connected with a piston rod; a first air port and a second air port are formed in the upper portion and the lower portion of the lower cylinder body respectively, a connecting plate is fixedly connected to the lower cylinder body, a piston rod penetrates through the connecting plate and extends into the upper cylinder body, a clamping arm partially located in the upper cylinder body is arranged, a clamping screw is installed at the top of the clamping arm, and a smooth protruding structure is formed at the bottom of the clamping arm. A shaft hole and a crescent hole are formed in the smooth protruding structure, the clamping arm can rotate around a rotating shaft arranged in the shaft hole, and a shaft sleeve fixedly connected with the piston rod is arranged in the crescent hole. A clamping machine is self-locked, a set screw is matched with a clamping screw, so that the clamping position is rotationally adjustable, adjustment can be carried out according to different positions of clamping points, and field adjustment is facilitated.

The utility model belongs to the field of mechanical part machining, and particularly relates to a positioning and clamping device for mechanical part machining, which solves the problems in the prior art that the direction of a mechanical part is difficult to adjust and the part cannot be turned over, and comprises a control arm, a first motor is fixedly arranged at the top end of the control arm, and a second motor is fixedly arranged at the bottom end of the control arm. A control panel is fixedly connected to the outer side of the first motor, and a connecting rod is fixedly mounted on the outer side of the control panel; through the arrangement of a control arm and a movable arm, the whole device can be controlled by a telescopic rod so as to change the lifting height and angle, a user can conveniently adjust the spatial orientation of a part, through the arrangement of a first motor, the output end of the first motor is connected with a control panel, and the control panel can be driven to rotate; accordingly, relevant structures on the outer side of the fixing plate are driven to rotate simultaneously, so that a user can adjust overturning of the part conveniently, and the requirement for machining different faces of the part is met.