53results about How to "Clamp evenly" patented technology

The utility model discloses a tab penetrating device and assembling equipment of a battery. The battery comprises a shell and an electrode assembly, the shell is provided with a containing cavity, a through hole communicated with the containing cavity and the outside is formed in the shell, the electrode assembly is arranged in the containing cavity, and the tab penetrating device is used for guiding a tab part of the electrode assembly to extend out of the through hole. The tab penetrating device comprises a clamping mechanism and a driving mechanism, the clamping mechanism comprises a first clamping piece and a second clamping piece which are movably connected, and a clamping space with an adjustable opening and closing angle can be formed between the first clamping piece and the second clamping piece. And the driving mechanism is in transmission connection with the first clamping piece and / or the second clamping piece so as to drive the first clamping piece and / or the second clamping piece to move to adjust the size of the opening and closing angle. And the driving mechanism is configured to drive the first clamping piece and / or the second clamping piece to move, so that the first clamping piece and the second clamping piece can clamp the tab part to pass through the through hole and extend out of the accommodating cavity. Through the mode, the assembly difficulty of the battery can be effectively reduced.

The utility model discloses a photoelectric platform stabilizing device, the utility model relates to photoelectric platform technical field, including base, the middle part fixedly connected with fixed block in the base inner wall, the fixed block inner wall fixedly connected with first motor, the output end transmission of first motor has the rotary disc, the upper surface fixedly connected with stabilizing device of rotary disc. This photoelectric platform stabilizing device, through setting stabilizing device, positive and negative toothed rod cooperation limiting rod drive clamping stable frame synchronous relative motion can realize even clamping to different size photoelectric equipment, avoid equipment to shake, the cover plate further prevents equipment from falling off, ensure that the equipment is fixed in the position in the working process, when the first motor drives the rotary disc to rotate, the limiting ring on fixed plate and the limiting block under rotary disc accurate adaptation, limit the radial displacement of rotary disc, reduce the shake, guarantee the stability when azimuth adjustment.

The utility model discloses quality detection equipment for medical packaging barrel processing, which comprises a supporting table, a limiting seat is arranged at one end of the supporting table, a clamping assembly is arranged on the limiting seat, a clamping block in the clamping assembly can be subjected to angle adjustment so as to adapt to packaging barrels of different barrel types, and a group of stand columns are mounted at the other end of the supporting table. The clamping blocks are adjustable in angle and can be matched with medical packaging barrels in various shapes such as a cylindrical shape and a conical shape, the problem that traditional equipment cannot be matched with special-shaped barrels is solved, the barrel bodies are effectively prevented from shaking during detection through matching of the adjustable clamping blocks and the limiting seats, the accuracy of detection data is guaranteed, and the detection efficiency is improved. Meanwhile, equipment damage caused by shaking of the barrel body is prevented, the barrel body fixing function and the wall thickness detection function are integrated, fixing and detection work is completed on one piece of equipment, the detection efficiency is improved, and the detection process is simplified.

The utility model relates to fan maintenance technical field discloses a kind of impeller dismounting device, including first clamping piece, second clamping piece, pusher plate and at least two installation rods;First clamping piece and second clamping piece are all provided with clamping cavity, and each clamping cavity is provided with inner lug;First clamping piece and second clamping piece are all provided with outer lug, and the clamping cavity is formed accommodating cavity after being connected by first clamping piece and second clamping piece, and the matching design of inner lug and impeller radial groove is combined, the accurate positioning and uniform clamping of impeller are realized;Outer lug is used as structure reinforcing part, not only strengthen the local strength of first clamping piece and second clamping piece, also provide stable installation base for installation rod, so that the axial force transmitted by installation rod of pusher plate can be uniformly, stably act on the matching surface of impeller and motor shaft, avoid direct artificial knock impeller or heat impeller shaft sleeve to cause impeller or motor shaft damage, significantly improve dismounting efficiency and security.

The utility model relates to the technical field of engraving, disclose glass bottle surface pattern engraving device, including mesa and cylinder, the side surface fixed connection of mesa has laser engraver, the top fixed connection of mesa has shell no.

A multifunctional transport system for straw bale recovery is provided, wherein a lifting drive device is provided on a flip-type storage frame and the lifting drive device is connected to a lifting frame arranged inside the flip-type storage frame, a transverse drive device is provided on the lifting frame and the transverse drive device is connected to a transfer manipulator device arranged in the lifting frame, a lifting transfer device and a lifting rotation device are provided in front of the flip-type storage frame, the lifting rotation device is connected to a picking manipulator device, the lifting rotation device drives the picking manipulator device holding the straw bale to rotate above the lifting transfer device, and the transfer manipulator device loads the straw bale on the lifting transfer device into the flip-type storage frame under the combined drive of the transverse drive device and the lifting drive device. The present invention realizes the integration of picking up and loading and stacking of straw bales, reduces the difficulty of picking up and loading and stacking of straw bales, improves the efficiency of picking up and loading of straw bales, and reduces the labor intensity of staff.

The utility model relates to the technical field of heat conduction performance test, disclose a device for testing silicon grease thermal resistance, including base, base outer wall fixedly connected with support plate, base outer wall fixedly connected with support wheel, the extrusion subassembly that is provided with in base top, the extrusion subassembly includes cylinder, cylinder sets up in base top, support plate outer wall fixedly connected with slide post, slide post outer wall slidingly connected with connecting plate no.

The invention relates to the technical field of computers, in particular to computer component installation auxiliary equipment which comprises a fixing frame, the fixing frame is divided into an upper layer and a lower layer, square grooves are formed in the upper surfaces of the upper layer and the lower layer of the fixing frame in a penetrating mode, and a heat dissipation device is detachably connected to the top of the fixing frame. First sliding parts are slidably connected into the square grooves in the upper layer and the lower layer of the fixing frame, a plurality of second sliding parts are slidably connected to the two ends of each first sliding part, a limiting frame is fixedly connected between the sides, away from each other, of the second sliding parts, and a plurality of threaded holes are formed in the outer surface of the limiting frame in a penetrating mode. One end of each first sliding part is rotationally connected with a two-way screw rod, and when the two-way screw rods are rotated, the limiting frames can clamp the hard disks in the middle and slide the hard disks into the inner side of the fixing frame, so that the hard disks are uniformly clamped on the sides, close to each other, of the limiting frames, and vibration and noise generated by loosening or shaking of the hard disks are avoided; and when the limiting frame is driven to be centered through rotation, the hard disk damage risk is reduced.

This utility model discloses a reducer device for emulsion drilling rigs, including a first mounting shell, a second mounting shell disposed on the first mounting shell, and fixing bolts disposed between the first and second mounting shells. It enables rapid fixing and disassembly of the reducer body without disassembling numerous related components, significantly simplifying the replacement process, shortening downtime, and reducing the impact on construction progress. In terms of maintenance, the ease of assembly and disassembly reduces reliance on confined operating spaces and the risk of secondary damage due to improper operation. Regarding costs, it reduces labor hours and labor costs; reduces wear and tear on surrounding components from repeated disassembly, lowering the probability of unplanned replacements; and eliminates the need to stock complete units, reducing inventory costs. Furthermore, the flexible fixing method facilitates adaptation to equipment upgrade needs without requiring modification or replacement of the entire machine, further reducing costs, making it particularly suitable for scenarios such as underground mining.

The utility model relates to the technical field of electrode machining, and discloses an adjustable chuck for electrode machining, which comprises a fixed column, a rotating valve is arranged on the front side of the outer wall of the fixed column, and the top of the inner wall of the rotating valve is rotatably connected with a bidirectional threaded rod. The front end of the bidirectional threaded rod penetrates through the inner wall of the fixing column and is fixedly connected with the rotating valve, first clamping jaws are rotationally connected to the front side and the rear side of the outer wall of the bidirectional threaded rod correspondingly, first sliding grooves are formed in the left side and the right side of the outer wall of the two first clamping jaws correspondingly, and rotating teeth are fixedly connected to the middle of the outer wall of the bidirectional threaded rod. And clamping jaws II are arranged at the upper ends and the lower ends of the outer walls of the rotating teeth. According to the utility model, through the matching of the rotating valve and the bidirectional threaded rod, the operation is simple and convenient, the relative or reverse movement of the clamping jaw I can be accurately controlled, and the clamping jaw I is more stable and more accurate to guide when moving through the matching of the sliding chute on the outer wall of the clamping jaw I and the sliding block.

The present invention relates to the technical field of spherical fillers, and discloses a spherical filler feeding mechanism, including a frame, two clamping assemblies symmetrically arranged on the frame, a driving mechanism and a discharge assembly, wherein the clamping assembly includes a positioning mold arranged below the frame, and the driving mechanism drives the two clamping assemblies to move relative to or away from each other to achieve positioning, clamping or resetting of the filler, and the discharge assembly is arranged on the frame corresponding to the clamping assembly, and is used to press the spherical filler on the clamping assembly into the next station. The present invention requires that the two clamping assemblies be opened when loading, and the material is fed and placed between the two clamping assemblies to achieve clamping of the material. When the material reaches the top of the cover closing mechanism, the discharge assembly presses down the spherical filler on the clamping assembly, so that the spherical filler enters the cover closing mechanism, thereby achieving automatic loading of the spherical filler and ensuring loading accuracy, thereby ensuring that the cover closing mechanism of the next station can be closed smoothly, thereby improving production efficiency.

The utility model relates to the technical field of cutter production, provide a kind of hard alloy cutter fine grinding tool, including bottom plate, the bottom plate is provided with polishing part, the bottom plate is provided with clamping assembly, the clamping assembly is used to clamp workpiece to be processed;The polishing part includes installation part and polishing part, one end of the installation part is fixedly connected with one end of polishing part, one side of the polishing part is set as cambered surface, the projection of the cambered surface is towards the recess of workpiece to be processed and is set;The end of the installation part away from polishing part is provided with sliding portion, the sliding portion is slidably arranged on the bottom plate along the length direction of bottom plate, the length direction of the polishing part is parallelly arranged with the length direction of bottom plate, the utility model can improve the processing effect of double-end hard alloy cutter bottom burr.

This invention discloses a coaxial precision stacking device for multi-layer optical filter detection in laser measurement, belonging to the technical field of auxiliary equipment for optical filter detection. The device includes a main body with a height adjustment mechanism, a filter positioning and clamping mechanism, an adjustment mechanism, and a linked flipping mechanism. The adjustment mechanism employs a dual-operation mode with a main knob and a sub-knob. The main knob drives the flipping mechanism to switch positions, while the sub-knob, via bevel gear transmission, drives the flipping mechanism to precisely lift the filter. The filter positioning and clamping mechanism achieves flexible clamping through an elastic rubber ring and an annular gap, ensuring suspension stability. The height adjustment mechanism can quickly calibrate the reference height. This invention, through the coordinated linkage of multiple mechanisms, achieves precise coaxial stacking of multi-layer filters without manual intervention, combining ease of operation, positioning accuracy, and filter protection, significantly improving stacking efficiency and detection reliability, and meeting the multi-layer filter stacking requirements before optical detection.

This utility model discloses a hydraulic pressing device for assembling gear shafts, belonging to the field of gear shaft technology. It includes: a worktable; a U-shaped pressing plate installed on the worktable surface, with an inverted L-shaped vertical plate welded to the outer wall behind the U-shaped pressing plate; an assembly component disposed within the U-shaped pressing plate and centripetally holding a gear component; a hydraulic pressing component longitudinally installed on the inner top wall of the L-shaped vertical plate, with a shaft body pressed down at its bottom lifting end, the bottom end of the shaft body being inserted into the shaft hole of the gear component; the gear component is centripetally clamped by two symmetrically arranged arc-shaped internal gear plates on its circumference. During the pressing process of the hydraulic pressing component, the shaft body is raised and lowered for positioning by a positioning auxiliary component to prevent the shaft body from getting stuck in the shaft hole. This utility model avoids the errors caused by traditional manual adjustment, achieves precise positioning of the gear component, improves assembly efficiency, and achieves the effects of improving assembly accuracy and reducing manual labor intensity.

This utility model relates to the field of automatic grain processing equipment technology, and discloses an automatic packaging device for grain processing, including a packaging table. A conveyor frame is provided at the top of the packaging table, and a conveyor belt is driven to the inner wall of the conveyor frame. A guide rail is fixedly connected to the upper surface of the packaging table, and a sliding plate is slidably connected to the top of the guide rail. Compared with traditional devices, this utility model features a support frame, a clamping frame, and clamping wheels. The operator can stabilize the grain bags for packaging using a clamping cylinder. The clamping cylinder, through precise transmission via connecting blocks, push-pull rods, and a sliding plate, drives the two clamping wheels and sealing rollers to synchronously approach, thereby stabilizing the grain bags so that both sides and the bag opening are evenly clamped, avoiding problems such as skewed or misaligned bag openings during heat sealing, ensuring stable packaging quality. Furthermore, compared to manual fixing and stacking, efficiency is improved, effectively shortening the production cycle.

The utility model relates to the technical field of packaging, in particular to a clamping jaw module and a wheel rotating machine. Each clamping jaw assembly is composed of a first clamping jaw structure and a second clamping jaw structure, wherein the clamping ends of the first clamping jaw structure and the second clamping jaw structure are opposite. Clamping ends of the first clamping jaw structure and the second clamping jaw structure respectively clamp a first end and a second end of a bag opening of a packaging bag; the first clamping jaw structure and the second clamping jaw structure are each provided with a clamping mechanism, and the clamping mechanisms provide independent clamping force tending to be in a clamping state for the clamping end of each clamping jaw assembly. The linkage driving mechanism overcomes the clamping force of the clamping mechanism and loosens the end part of the bag opening at the same time; according to the packaging bag clamping device, clamping force is provided for each clamping end through the clamping mechanism, the influence of the installation precision of the first clamping jaw structure and the second clamping jaw structure does not need to be considered, the packaging bag can be effectively and reliably clamped only by providing enough clamping force for each clamping end, and the packaging bag clamping device has good compensation performance and smoothness.

The utility model discloses a waste material winding mechanism of blister forming machine relates to blister forming machine waste material collection technical field, including frame, be equipped with winding roller through bearing on the frame, the outside of winding roller is equipped with winding drum, just the inside installation of winding roller has control piece and fixed part, control piece is used for driving fixed part radial movement to with winding drum clamping or release, still be equipped with telescopic part on the frame, the output of telescopic part is connected with tight pressure roller spare, is used for exerting the preset pressure to the waste material in the winding process. The waste material winding mechanism of blister forming machine, realizes winding drum quick clamping and release through rotating driving shaft, and the operation is simple, and tight pressure roller spare cooperation pressure sensor and spring, realize constant pressure flexible compression, effectively prevent loose roll, wrinkle, improve winding quality and the efficiency of material replacement.

The application relates to a pipeline external crawling cutting robot and a control method of the crawling cutting robot, and belongs to the field of robot technology and operation. The application aims to solve the problems that the existing pipeline external operation robot has poor passability and is difficult to autonomously complete cutting, and the pipeline external crawling cutting robot comprises a camera holder car head, a cutting operation mechanism, two steering structures and four clamping driving structures. The two clamping driving structures are connected through the steering structure, the angle is adjusted through the steering structure, the four clamping driving structures are arranged side by side in a straight line direction, the cutting operation mechanism is arranged between the two clamping driving structures in the middle, the cutting operation mechanism is used for pipeline cutting, the clamping driving structure drives the cutting operation mechanism to move in the axial direction and the radial direction of the pipeline, the camera holder car head is arranged on one clamping driving structure at the end, and the camera holder car head is used for collecting pipeline and surrounding environment images.

The invention discloses a financial voucher pressing machine, and belongs to the technical field of financial tools. Comprising a machining table and a machining unit, four sets of assemblies clamped by the inner end face of an assembly semi-ring are combined and spliced, materials with different thicknesses and different corners can be pressed and pressed under different requirements, due to the design, the situation that the device is limited in use due to the fact that the thickness of the materials is too large can be avoided, and meanwhile effective pressing of the thick materials is guaranteed; when a thick material needs to be subjected to corner pressing from one side, the side, needing to be pressed, of the material is placed over the table top, the side, not needing to be pressed, of the material extends out of the edge of the whole device, the other worker can hold the device by hand, two sets of transversely-arranged combined parts far away from one side of the lifting frame can be dismantled, and the device can be used for carrying out corner pressing on the material. The bottoms of only two sets of assemblies can only make contact with the upper portion of the material on the pressed side, and when a single corner of the material needs to be pressed, the lower end faces of the two sets of assemblies are used for pressing the corner position of the material.

The utility model discloses an aluminum foil sealing machine for cosmetic production, it includes: work platform, heating assembly, the upper surface left and right sides of work platform all are established with rotary groove, the inner surface front and back sides of rotary groove all are fixedly connected with fixed column, one end of fixed column is rotatably connected with rotary frame, the upper surface fixed connection of rotary frame has the abutment arc block, the lower surface front and back sides of rotary frame all are fixedly connected with connecting rod. Through adjusting motor drive screw rod rotation, drive connecting plate movement with second guide screw thread tooth, through fixed block, first connecting column, rotary rod, second connecting column, connecting rod linkage rotary frame, make the abutment arc block and positioning seat cooperation clamping bottle. Limiting slide column guarantees the stable movement of connecting plate, and fixed column ensures the smooth rotation of rotary frame, and each part cooperates and realizes synchronous clamping, can stably fix bottle, avoids the shaking when sealing, guarantees the sealing quality, also simplifies the operation, improves work efficiency.

The utility model provides a tightener for electric power construction, which relates to the technical field of tighteners and comprises a support, a take-up roller is rotatably arranged between the front inner wall and the rear inner wall of the support, a steel rope is wound around the take-up roller, and one end of the steel rope is provided with a joint piece. The combined piece comprises a square block and clamping plates, one end of the square block is fixed to the steel rope, a through groove is formed in the square block, the two movable clamping plates are arranged in the through groove, and a two-way screw is rotationally arranged at one end of the square block and used for controlling the two clamping plates to move. According to the utility model, the two clamping plates clamp a cable at the same time, and force can be uniformly applied from two directions, so that the cable is stably fixed in the circular through groove, shaking and displacement of the cable are reduced, and the cable is stably clamped; and meanwhile, the two clamping plates are screwed through the two-way screw rod and are lifted up and down at the same time, it can be guaranteed that pressure borne by the cable in the circumferential direction is more uniform in the clamping process, and an insulating layer or an internal structure of the cable is prevented from being damaged.

The utility model belongs to wall, column external corner template fixed technical field, concretely relates to a kind of efficient template fastening construction tool of occlusion type;Including scissor type occlusion support, the top of the middle articulation shaft of scissor type occlusion support is connected with control mechanism, the bottom of the outside articulation shaft of scissor type occlusion support is provided with clamping part, control mechanism can control scissor type occlusion support telescoping to adjust the spacing between the clamping part of two sides, the clamping part of two sides can be clamped and fixed external corner template;Through the structural design of scissor type occlusion support, clamping part can simultaneously act on multiple positions of template, realize the uniform clamping of external corner template, effectively avoid the stress concentration problem caused by traditional single-point clamping mode, improve the overall stability and security of template.

The utility model discloses a warping plate coating device which comprises a coating clamping jaw used for clamping the top of a warping plate and a lifting mechanism used for driving the coating clamping jaw to move up and down, a positioning clamping jaw is arranged below the coating clamping jaw and comprises two positioning blocks and a first moving mechanism, and the positioning blocks are symmetrically arranged in the front-back direction. The first moving mechanism is used for driving the two positioning blocks to move towards each other or away from each other; two coating wheels which are symmetrically arranged in the front-back direction are arranged between the coating clamping jaw and the positioning clamping jaw; the two coating wheels move towards each other or away from each other through a second moving mechanism; the two coating wheels are used for clamping the warped plate and coating the warped plate with oil by rotating along the center shafts of the two coating wheels. According to the utility model, the two positioning blocks are used for pressing the middle part of the warped plate front and back, so that the most serious warpage position of the plate is avoided, and the positioning clamping jaw can stably clamp the warped plate.

This utility model relates to the field of tooling technology, specifically a tooling for machining the ball stem hole of a large-size flange ball valve. It includes a tooling base with a bearing concave surface on its top surface. A support block is fixedly connected to the top of the tooling base, and a positioning groove is formed on the top surface of the support block. The top surface of the tooling base also has an avoidance concave surface. A positioning hole is formed at the top of the tooling base. A left limiting plate is rotatably connected to the top surface of the support block, and a right limiting plate is rotatably connected to the top of the support block. The left and right limiting plates are the same size and symmetrically arranged. A left arc-shaped groove is formed on the inner side of the left limiting plate, and a right arc-shaped groove is formed on the inner side of the right limiting plate. The purpose of this utility model is to solve the problem of poor batch consistency when using existing ball stem hole machining tooling in the machining of large-size flange ball valves for mass production.

The utility model relates to mechanical clamp technical field discloses a kind of clamps of processing parallelism, comprising: base and briquetting piece.Base, the upper surface of base is equipped with recess for accommodating workpiece to be processed, the bottom surface of recess is positioning datum surface, and the depth of recess is less than the height of workpiece, to make workpiece top end face protrude from recess;Briquetting piece, briquetting piece has the compacting surface compatible with workpiece top end face, compacting surface is used to compact workpiece in recess to limit the displacement of workpiece in processing process.With the briquetting piece that sticks to product shape, accurate positioning and stable clamping of part are realized.Displacement and deformation of part in processing process are effectively reduced, and then parallelism precision of processing part is effectively improved.Meanwhile, the clamp can control parallelism error in very small range, meet high-precision processing demand.When workpiece is semicircular ring product, the clamp for processing parallelism provided by the utility model can clamp workpiece evenly.

The application discloses a polishing fixing device for a plastic support suction disc, and belongs to the field of plastic part processing auxiliary equipment. The fixing device comprises a base and a clamping mechanism arranged on the base. The clamping mechanism comprises oppositely arranged elastic rubber blocks, an arc-shaped fitting plate fixedly connected to one end of the elastic rubber block close to the plastic support suction disc, a supporting rod fixedly connected to the other end of the elastic rubber block away from the arc-shaped fitting plate, and a driving piece. The arc-shaped fitting plate is provided with an anti-skid silica gel pad in contact with the plastic support suction disc. The elastic deformation capacity of the elastic rubber block and the curved surface structure of the arc-shaped fitting plate are matched, so that the edges of plastic support suction discs with different radii can be self-adapted, the problem of local stress concentration caused by traditional rigid clamping is solved, and the edges of the suction disc are prevented from being deformed or cracked. Meanwhile, the concave surface of the arc-shaped fitting plate is complementarily fitted with the convex edge of the suction disc, so that stable clamping with uniform stress can be realized, and the positioning precision requirement of the workpiece in the polishing process is met.

The application provides a circulating waste heat generator unit installation device, which comprises a bottom plate and an X-direction electric sliding table, two groups of supporting plates movably arranged above the bottom plate and capable of supporting pipes to be assembled at different positions, a clamping air cylinder arranged on one side of the upper surface of the bottom plate, a clamping assembly arranged at the end of the piston rod on both sides of the clamping air cylinder, and the clamping air cylinder and the clamping assembly movably arranged on the upper surface of the bottom plate, and the included angle between the two groups of clamping assemblies is adjustable. The clamping angle between the two groups of clamping assemblies can be controlled by starting the clamping air cylinder, so that the equipment in the lifting process is clamped, the stability of the equipment in the lifting process is ensured, the collision of the equipment in the lifting process with the surrounding equipment is avoided, the vertical column is connected to the movable moving block by using the two groups of horizontal moving plates, the horizontal position of the adjusting supporting plate is driven by rotating the ball screw, the position of the supporting plate is adjusted in a larger range, and the supporting effect on the metal pipe is ensured.

The utility model relates to the technical field of casting, and discloses a casting taking-out mechanism for manufacturing a precision casting sand mold. The lifting assembly is arranged on the upper surface of the mounting plate; the grabbing assembly is arranged on the lifting assembly; the lifting assembly comprises a fixed sliding rod fixedly connected to the upper surface of the mounting plate; the limiting plate is fixedly connected to the upper surface of the fixed sliding rod; the electric lifting rod is arranged on the upper surface of the mounting plate. By starting an electric lifting rod, the electric lifting rod drives a sliding rod to slide downwards on the inner wall of a fixed sliding rod, and meanwhile, the sliding rod drives a connecting and fixing plate to descend, so that the connecting and fixing plate drives a grabbing assembly to descend, and after a clamping plate clamps a workpiece, the electric lifting rod ascends to drive the sliding rod to slide upwards on the inner wall of the fixed sliding rod; and the sliding rod drives the grabbing assembly to ascend through the connecting and fixing plate, the casting sand mold is taken out, and the effect of lifting the grabbing assembly is achieved.

The utility model discloses a clamping device for processing parts of medical instruments, which comprises a clamp base, a group of limiting round rods fixedly connected with the clamp base, and a central plate fixedly connected with each limiting round rod; a center shaft of each transmission gear is in bearing connection with the center plate, and the center shaft of each transmission gear is fixedly connected with a swing arm; central shafts of the group of symmetrical mounting discs are respectively connected with the corresponding swinging arms through bearings, and the eccentric part of each mounting disc is respectively and fixedly connected with a clamping column. The utility model relates to the technical field of clamps, in particular to a clamping device for machining parts of medical instruments. The technical problem to be solved by the utility model is to provide the clamping device for processing the parts of the medical equipment, so that the thin-wall circular ring part can be conveniently and uniformly clamped, the damage to the thin-wall circular ring part can be avoided, and the subsequent processing can be conveniently realized.

The utility model relates to the technical field of clothing production, in particular to a clamping and positioning device for clothing embroidery production, which comprises a bottom frame, a surface frame, two driving devices and a pulling and fixing mechanism, and the pulling and fixing mechanism comprises a rack, a plurality of spring clips, a driving component, a driving roller, a moving component, a compression roller and an auxiliary component. A fabric penetrates between the bottom frame and the face frame, the tail end of the fabric is clamped through the multiple spring clamps, the front end of the fabric is placed between the driving roller and the pressing roller, the moving assembly is started, the pressing roller is pressed downwards, the driving roller is matched to clamp the front end of the fabric, the driving assembly is started, the driving roller rotates, and under the cooperation of the auxiliary assembly, the pressing roller and the multiple spring clamps, the fabric is pressed downwards. During embroidering, the fabric is leveled and tightened, the two driving devices are started, the face frame is pressed downwards to be matched with the bottom frame, the leveled and tightened fabric is clamped and fixed, and the effect that the fabric is uniformly tightened so as to facilitate embroidering is achieved.