80results about How to "Reduce machining errors" patented technology

The utility model provides a pitched roof sleeve structure and a mold capable of automatically compensating installation angle and location degree machining errors, and relates to the technical field of molds, the pitched roof sleeve structure capable of automatically compensating installation angle and location degree machining errors comprises a pitched roof assembly and a pitched roof hole formed in a mold plate in a penetrating mode, the pitched roof assembly is arranged in the pitched roof hole; a compensation gap used for compensating installation angle and position degree machining errors is formed between the inclined ejection assembly and the inner wall of the inclined ejection hole. The mold comprises the inclined ejector sleeve structure capable of automatically compensating the installation angle and position degree machining errors. According to the utility model, through the pitched roof hole with the compensation gap, the installation angle and the location degree of the pitched roof assembly can be automatically compensated in the installation process of the pitched roof assembly, and the processing error of the pitched roof hole can be effectively compensated on the basis of ensuring the installation effect of the pitched roof assembly, so that the production and the processing are more convenient; and meanwhile, the phenomenon that the pitched roof is stuck due to insufficient machining precision of the pitched roof hole can be effectively avoided, and the ejection effect is ensured.

The application discloses a high-temperature gas flow automatic regulating valve and relates to the technical field of valves.The application solves the problems of slow response speed and poor sealing and heat insulation capacity in the prior art.The application comprises a valve body, a flow-limiting nozzle structure is arranged on the valve body, a chamber is arranged on the flow-limiting nozzle structure, flow channel openings I and II, which are in communication with the chamber, are arranged on the flow-limiting nozzle structure, an electromagnet is connected to the valve body, a movable end of the electromagnet is connected to one end of a yoke, the other end of the yoke extends into the chamber and is matched with the flow channel opening II, the movable end of the electromagnet can drive the yoke to control the opening and closing degree of the flow channel opening II, and a sealing and heat insulation structure for matching with the yoke is arranged on the chamber.The sealing and heat insulation structure is matched with the yoke directly, sealing and heat insulation are formed, and the use requirement of a high-temperature medium conveying scene is met.The end of the yoke is matched with the flow channel opening II directly to control the flow, the design of a valve core is cancelled, space occupation is saved, the structure is simplified, friction in the control process is reduced, the driving force requirement of an electromagnetic valve is reduced, the response time of control is improved.

The present application relates to helical slot processing technical field, disclose a kind of helical slot bevel cutting mechanism and processing method, including linear module and two processing tool bits, the linear module and two processing tool bits are all installed on machine tool, the moving seat of the linear module is fixedly connected with support plate, the outside of the support plate is fixedly connected with two mounting brackets, the outside of the mounting bracket is provided with rotating mechanism and chip removal mechanism, the rotating mechanism includes motor, the motor is installed on the outside of mounting bracket, the output of the motor is fixedly connected with mounting sleeve, the inside of the mounting sleeve is slidably connected with sliding rod. By two processing tool bits simultaneously to the both sides of part helical slot processing, cooperate with the rotation of part and the position of overall structure to move, realize the accurate control of cutting path, compared with the traditional single tool rotation angle cutting, can effectively improve processing efficiency, and ensure helical slot cutting seam precision is more stable, improve processing quality.

The utility model belongs to the technical field of power tool turrets, and particularly relates to a numerical control machine tool slant bed power tool turret turning and milling composite machine tool which comprises a numerical control turning and milling composite machine tool body, a power tool turret is arranged on the inner wall of the numerical control turning and milling composite machine tool body, and a motor installation groove is formed in the inner wall of the power tool turret. Servo motors are installed on the inner wall of the power tool turret, one servo motor is installed on the inner wall of the motor installation groove, a thermal shrinkage tool handle is installed at the output end of the servo motor, and a tool bit is movably connected to the inner wall of the thermal shrinkage tool handle. By arranging the thermal shrinkage cutter handle and utilizing the principle of thermal expansion and cold contraction, the cutter head is installed during heating and tightly held after cooling, vibration transmission can be reduced, the machining precision can be improved, errors can be automatically compensated, the coaxiality is ensured, the service life of the cutter head is prolonged, the surface quality is improved, the clamping force is higher, the cutter head can be effectively prevented from loosening, and the machining yield of fragile materials is improved.

This utility model relates to the technical field of injection molding parts processing equipment, and discloses an injection molding parts flattening and shaping mechanism, including a base and an injection molding part. A support frame is fixedly connected to the top of the base, and a flattening machine is slidably connected to the top of the support frame. A flipping mechanism is provided at the top of the base, and a clamping mechanism is fixedly connected to the left end of the flipping mechanism. The clamping mechanism includes a fixing block, the right end of which is fixedly connected to the left end of the flipping mechanism, and a motor is fixedly connected inside the fixing block. In this utility model, the motor drives the gear to rotate, causing the rack plate to slide, so that the L-shaped plate moves the square plate to achieve initial clamping. Multiple through holes, bolts, nuts, positioning rods, and clamping rods of the component work together. Appropriate through holes can be selected to install bolts according to the shape of the part, adapting to injection molding parts of different shapes and improving the accuracy and efficiency of clamping and positioning.

The utility model belongs to copper foil hot pressing processing equipment technical field especially for a kind of copper foil hot pressing processing device, including work bench, the upper end of work bench is respectively fixed mounting with heating bearing plate and fixed frame, the top of fixed frame is inserted with guide insertion rod, the top of fixed frame is fixedly installed with hydraulic cylinder, the lower end of guide insertion rod is connected with buffer structure, the output of hydraulic cylinder is fixedly connected with buffer structure, the utility model can accurately control the relative position between cutting tool and pressing plate by limiting component, ensure in hot pressing processing and cutting process, cutting tool can accurately aim at copper foil and carry out cutting, to greatly improve the machining accuracy, simultaneously, the adaptive design of limiting insertion rod and limiting insertion hole, and the reset action of spring two, ensure the stability of cutting tool after multiple uses, reduce the processing error caused by position deviation.

The utility model belongs to the technical field of profile machining equipment, and particularly relates to an aluminum profile axial positioning device which comprises a rack, an operation table, a sliding base part, a sliding positioning unit and a driving source. An operation table used for bearing and placing aluminum profiles is arranged in the middle of the machine frame, a sliding base part arranged in the length direction of the operation table is arranged on the upper portion of the machine frame, and a sliding positioning unit used for axially positioning the aluminum profiles is installed on the sliding base part. A driving source for driving the sliding positioning unit to move in the length direction of the operation table is arranged on one side of the rack; by designing the cooperation of the side face pressing block and the top face pressing plate, it is ensured that the aluminum profile is always subjected to uniform and appropriate pressure during positioning, and surface pressing damage or deformation caused by too large or non-uniform pre-tightening force is avoided.

The utility model discloses a positioning mechanism for board processing, which comprises a conveying assembly line and a mounting bracket, one side of the conveying assembly line is provided with an in-place photoelectric mechanism used for carrying out in-place detection on boards conveyed above the conveying assembly line, and the in-place photoelectric mechanism can drive a blocking mechanism to intercept the boards. A movable baffle mechanism is arranged on one side of the in-place photoelectric mechanism, and a flange rotating assembly used in cooperation with the movable baffle mechanism is installed on the top of the installation support. By designing the angle-variable flange rotating assembly and the angle-variable movable baffle mechanism, wood boards of various sizes and angles can be accurately and rapidly positioned; by arranging the in-place photoelectric mechanism and the blocking mechanism, the same equipment can meet the machining requirements of wood boards of different specifications, the wood boards can be rapidly and accurately positioned to the designated positions, the positioning time is shortened, the machining error is reduced, and therefore the overall production efficiency is improved.

The utility model discloses a four-axis machine of a machining center, and relates to the technical field of four-axis machines. The machining center four-axis machine comprises a machining center, a fixing assembly and a replacing assembly, a bridge plate is arranged on the machining center, the fixing assembly is arranged on the bridge plate, the replacing assembly is arranged on the bridge plate, the replacing assembly comprises a fixing frame, sliding blocks, springs and clamping rods, and the two sets of sliding blocks are installed in the fixing frame in a sliding mode and are symmetrically distributed; a spring is fixedly installed on one side of the sliding block, a clamping rod is fixedly installed on the other side of the sliding block, and the other end of the clamping rod penetrates through the fixing frame and extends into the connecting plate. Through the arrangement of the replacement assembly, workpieces of different shapes and sizes possibly need different clamping modes and force distribution, the most suitable clamping mode can be selected according to the specific requirement of each workpiece by replacing the clamping fixing plate, and the flexibility can ensure that each workpiece can be stably and reliably clamped; and machining errors or workpiece damage caused by improper clamping are avoided.

The invention relates to the technical field of crankshaft chain wheel machining, and discloses a crankshaft chain wheel machining compensation method and system, terminal equipment and a storage medium, and the crankshaft chain wheel machining compensation method comprises the steps that after a gear hobbing machine completes primary machining of an odd-number crankshaft chain wheel, the assumed cross-rod distance deviation of the current odd-number crankshaft chain wheel and a qualified odd-number crankshaft chain wheel is determined; calculating the reference circle radius deviation of the current odd crankshaft sprocket and the qualified odd crankshaft sprocket based on the assumed cross-rod distance deviation and the sprocket tooth number of the current odd crankshaft sprocket; and the distance between the axis of the hobbing cutter and the axis of the crankshaft chain wheel is adjusted based on the reference circle radius deviation, the first reference circle radius and the second reference circle radius, so that the machining error of the crankshaft chain wheel is compensated. The distance between the axis of the hobbing cutter and the axis of the workpiece is dynamically calculated and adjusted, accurate compensation of machining errors is achieved, integrated crankshaft chain wheel machining is adapted, and the production efficiency of the crankshaft chain wheel is improved.

The utility model discloses a numerical control processing automatic line, including frame, portal frame, feed conveyor, waste conveyor, conveying line, take material mechanism, three -axis positioning mechanism, processing mechanism and conveying jig, conveying line and waste conveyor are in parallel set up in the frame, and the waste conveyor is located one side of conveying line, and conveying jig transmission is in conveying line, and three -axis positioning mechanism and processing mechanism are installed in the portal frame, and take material mechanism is installed in three -axis positioning mechanism and realizes three -dimensional motion through three -axis positioning mechanism, and conveying jig includes workstation, and a plurality of discharge chute are seted up in the workstation, and the discharge port of a plurality of discharge chute is located above the waste conveyor, and the workstation is installed with sectional material frame, and a plurality of fastening jigs are installed on sectional material frame, and a plurality of fastening jigs are fixed to the sample of processing. The numerical control processing automatic line through the cooperation of each component operation, realize material automation conveying, accurate positioning and efficient processing, effectively improve production efficiency and processing accuracy, reduce the artificial cost.

This utility model provides an anti-rotation mechanism for machining steering gear housings, relating to the field of steering gear housing machining technology. It includes: a jig ejector seat, an ejector shaft penetrating the inner side of the jig ejector seat, an internally threaded slot on the front end face of the jig ejector seat, a limit screw threaded through the inner side of the internally threaded slot, an anti-rotation groove on the axial surface of the ejector shaft, and a limit screw inserted into the anti-rotation groove. The front end of the limit screw is limited in the internally threaded slot by a flat head. This utility model solves the problem that during the machining of steering gear housing holes, the ejector shaft easily rotates under cutting torque, causing machining errors in the steering gear housing holes.

The utility model discloses a kind of outer hexagonal nut machining chip removal mechanisms, it is related to nut production technical field, including chassis, the middle fixed connection of chassis is limit sleeve one and limit sleeve two, the inner side wall of limit sleeve one is rotatably connected with rotating shaft one, the inner side wall of limit sleeve two is rotatably connected with rotating shaft two, in the utility model, three blades of processing tool cantilever after cutting outer hexagonal nut, its surface is easy to adhere to chip, if not cleaning can reduce blade sharpness and processing accuracy.Arc cover one is rotated 120 degrees in the range after corresponding blade leaves workpiece, airflow generated by axial fan is guided through arc cover two, when passing through the gradually narrow passage between the conical plate on the supporting plate, flow rate is enhanced, can efficiently blow off chip on blade, ensure that blade always maintains good sharpness, to ensure the accuracy of subsequent outer hexagonal nut polishing, reduce the processing error caused by chip residue, improve the stability of product quality.

The utility model relates to the field of bending mechanism, and disclose a kind of bending mechanism of hydraulic bending machine, including support, hydraulic cylinder one, piston rod one, hydraulic cylinder two, piston rod two, the plane of support is equipped with groove, the bottom surface middle part of support is equipped with through-hole, the bottom surface middle part of support is fixedly installed with hydraulic cylinder two, and piston rod two is connected on the upper transmission of hydraulic cylinder two, and the bottom surface four corners of support are fixedly connected with support leg, and the upper surface of support is fixedly installed with support column corresponding the four around grooves of support, the top surface of two adjacent support columns at support short shaft is connected with top plate, the top plate middle part of support is equipped with through-hole, and the top plate middle part of support is fixedly installed with hydraulic cylinder one, and piston rod one is connected on the upper transmission of hydraulic cylinder one, and clamping mechanism is arranged in the groove of support, and bending mechanism is arranged on piston rod one, the bending mechanism of the utility model can change lower mould, and the shape of upper mould can be adjusted by rotating carousel, and it is efficient and accurate, and production efficiency and quality are improved.

The utility model relates to a kind of mixing devices, provide such a kind of cable insulation layer raw material's multi-component stirring device, including shell, control panel, mounting seat and temporary storage cylinder etc.;Control panel is equipped on the upper front side of shell, mounting seat is evenly equipped in the left and right sides of shell, cavity is equipped in the inside of shell, not less than two feed ports are equipped in the upper portion of shell, temporary storage cylinder is equipped in the feed port. The utility model is equipped with multiple temporary storage cylinders and weighing bin, can orderly temporary storage and accurate measurement to each component material before mixing, effectively reduce the processing error caused by raw material loss or artificial intervention due to the need for transfer between proportioning and mixing equipment, improve the uniformity and production efficiency of multi-component raw material stirring, it is favorable to guarantee the performance stability of subsequent cable insulation layer.

The utility model discloses a kind of fixed tool for photovoltaic module support processing, including installation platform, the installation platform top is provided with fixed component, the installation platform bottom four corners position place is uniformly connected with lifting rod, four the lifting rod outside is uniformly slidably connected with connecting sleeve, four the lifting rod bottom is uniformly fixedly connected with sliding rod in connecting sleeve inside, two the connecting sleeve between front and back sides are uniformly fixedly connected with connecting strip, two the connecting strip between middle part are fixedly connected with fixed rod, the fixed rod top middle part is fixedly installed with rotating support, the rotating support inside left and right sides are rotatably connected with transmission rod, two the transmission rod front and back ends are fixedly connected with rotating strip. The utility model said a kind of fixed tool for photovoltaic module support processing, can quickly adapt to different size support, reduce the time of manual adjustment, work efficiency is significantly improved.

The utility model discloses a numerical control machining center with high machining precision, which comprises a machine base, an integrated casting machine frame positioned on one side of the machine base and a machine head movably arranged on one side of the integrated casting machine frame, and a machine table mechanism capable of moving along a plane is arranged on the machine base. A receding groove extending in the vertical direction and a vertical guide rail extending in the vertical direction are arranged on the side, facing the machine head, of the integrated casting machine frame, the machine head is in sliding fit with the vertical guide rail, and a machine head driving mechanism used for driving the machine head to move is arranged in the receding groove. According to the machining center, the machine head used for machining the workpiece is installed through the integrated casting machine frame, the integrated casting machine frame is integrally cast, the installation and machining errors are reduced through the integrated design, the machining center is not prone to shaking in the working process, vibration is effectively resisted, the stability of the machine head in the workpiece machining process is effectively improved, and the machining accuracy of the machining center is improved. Therefore, the machining precision of the machine head is improved.

The utility model discloses a fixing device for processing a corrosion-resistant rubber tube, which relates to the technical field of rubber processing and comprises a base and a clamping component, the inner wall of the clamping component is rotatably connected with a fixing column at the top of the base, and the outer wall of the clamping component is fixedly connected with a clearing component; the clamping assembly comprises a rotating seat, the top of the rotating seat is fixedly connected with a fixing seat, the inner wall of the fixing seat is fixedly connected with an air bag, and the inner wall of the top of the air bag is fixedly connected with an air inlet header pipe through a pipeline. According to the device, pressure is applied in multiple directions to achieve firm clamping, the device can adapt to rubber pipes with different pipe diameters, the problem that a traditional rigid clamping mode is narrow in application range is solved, the device can be suitable for machining corrosion-resistant rubber pipes of various specifications, and the universality of the device is improved.

The utility model discloses a protective device for a bending machine, and relates to the field of bending machines. The device comprises a supporting table top and a workpiece, an abutting plate is arranged above the supporting table top, a protection mechanism is installed below the abutting plate, the protection mechanism comprises two sets of guide frames, an installation plate is fixed to one side of each guide frame and movably connected with the abutting plate, the two sets of guide frames are of a mirror symmetry structure, and the two sets of guide frames are arranged on the supporting table top. Through the protection mechanism, when the abutting part abuts against the workpiece in a limiting mode, the first electric push rod drives the abutting plate to drive the workpiece to rotate by a synchronous angle through the protection mechanism, and in the process, the distance between the workpiece and the supporting table top and the position where the hand of an operator can make contact with the workpiece are gradually increased; the distance between the workpiece and the abutting plate is fixed through the guiding and limiting functions of the guiding frame, the hands of an operator are effectively prevented from entering the gap by mistake, the risk that the hands of the operator are injured in the bending process is directly eradicated, and the use safety is remarkably improved.

The utility model discloses an automatic milling tool of automobile door threshold beam belongs to automobile door threshold beam technical field, including base, the upper surface both ends of base are equipped with support, and the outer side of support is equipped with X direction compression assembly, and the upper of support is equipped with Z direction compression assembly, and one side of base is equipped with Y direction compression assembly, the upper surface of support is equipped with detection hole, and the drive part of Z direction compression assembly is air detection cylinder, and the drive end of X direction compression assembly is connected with flush water block, and flush water block compression surface array is equipped with a plurality of locating column, and locating column stretches into work piece. Realized the effective clamping to the door threshold beam, improved the processing stability. Automatic detection clamping and loosening action whether in place, realized the automatic anti -stupid function.

A medical stainless steel tube chambering device comprises a grab handle device, a limiting device connected to one end of the grab handle device and a chambering device connected to the other end of the grab handle device, external threads are arranged on the head of the grab handle device, a connecting hole is formed in the tail of the grab handle device, and a set of sliding grooves are formed in three grooves formed in the head of the grab handle device in an annular array. The set of sliding grooves comprises two sliding grooves, a sliding block is connected into each sliding groove in a sliding mode, a hinge joint is arranged on each sliding block, the limiting device comprises three limiting clamps, the three limiting clamps are matched with one another, limiting parts in the limiting clamps are connected with connecting parts, and hinge joint holes are formed in the connecting parts and matched with the hinge joints; the center of the reaming device and the center of the limiting device are located on the same center line, the reaming device is connected to the tail of the grab handle device, and the reaming end of the reaming device penetrates through and extends into the grab handle device through the connecting hole, so that in the reaming machining process of the stainless steel pipe fitting, the production cost and the machining error are reduced, and the reaming effect is improved.

The utility model relates to the technical field of millimeter wave radars, in particular to an eight-transmitting and eight-receiving dual-chip 4D millimeter wave radar antenna array, which comprises eight transmitting antennas and eight receiving antennas, and the transmitting antennas and the receiving antennas are arranged in the horizontal direction and the pitching direction in a physical space. According to the utility model, the eight transmitting antennas and the eight receiving antennas are arranged, the transmitting antennas and the receiving antennas are distributed in the horizontal direction and the pitching direction in a physical space according to a certain rule, and the array element coordinates of the transmitting antennas and the receiving antennas are distributed in a differentiated manner according to a preset optimization algorithm instead of being simply and uniformly distributed; therefore, the equivalent array synthesized by the virtual channels has better sidelobe performance and higher angular resolution.

The present application relates to the field of cutting tool temperature measurement, and particularly relates to an intelligent temperature measuring tool and a tool rake face temperature field reconstruction method based on inverse heat conduction. The present application comprises a blade arranged on a tool shank body, a blade surface groove, an ultra-fine thermocouple, a PCB circuit board, a battery and a data display device. The blade is connected to the tool shank body through a blade mounting screw, and the blade surface groove is arranged on the blade rake face. The present application proposes a tool rake face temperature field reconstruction method based on inverse heat conduction to solve the technical problem of tool temperature measurement in the turning process. By integrating advanced temperature measurement technology and mathematical modeling, the present application can realize temperature monitoring in a complex machining environment and effectively capture the temperature dynamic changes of the tool and workpiece contact area.

This invention discloses a coating composite structure and a coating device. The composite structure includes at least a first structural component, a second structural component, and a third structural component. The first and second structural components are assembled to form a coating head liquid outlet, and the third structural component is assembled to form an air knife outlet. The second structural component is positioned between the first and third structural components. The coating head liquid outlet and the air knife outlet are located on the same side of the coating composite structure. The integration of coating and drying core functions is achieved through the coordinated installation of the first, second, and third structural components, replacing the independent components and support designs of the coating head and air knife in traditional coating equipment. This makes the coating and drying process flow structure more compact and significantly reduces the distance between the coating head liquid outlet and the air knife outlet, allowing for a closer connection between the perovskite solution coating and air curtain drying processes.

The invention discloses a sectional switching control method and a sectional switching control system for reciprocating wire moving abrasive wire cutting tension, and belongs to the technical field of numerical control machining. The problems of violent sudden change during reciprocating wire moving reversing, high-frequency shaking at a constant speed and other non-uniform tension are solved. Starting a closed-loop control strategy based on tension real-time feedback in a constant-speed wire feeding stage based on real-time acquisition of a wire cylinder reversing electric signal; and in the reversing wire feeding stage, closed-loop control is closed, and feed-forward compensation cooperative mechanical buffer unit control synchronously triggered by a reversing signal is started. Correspondingly, a system for implementing the method is provided and comprises a tension detection unit, a tension execution unit, a mechanical buffering unit and a control unit. The control unit can achieve independent compensation of tension disturbance of the motor end and the hand wheel end of the wire cylinder. Through segmented switching control and electromechanical cooperative compensation, the tension reversing fluctuation is controlled within + / -1N, and the constant-speed fluctuation is controlled within + / -0.2 N, so that the single-side wire loosening phenomenon is effectively improved, and the stability of reciprocating wire moving sand wire cutting is improved.

The application discloses a kind of based on multimodal deep learning's numerical control machine tool key position temperature prediction method, by designing the multimodal LSTM deep learning model of combination time series data, environmental parameter and processing process parameter, using LSTM extracts time series feature, and by fully connected network respectively processing environment and process data, then multimodal feature is integrated in fusion layer, finally generate accurate prediction result, for guiding machine tool temperature control operation, also can carry out SHAP value analysis.The method of the application is suitable for the temperature change prediction of key position in numerical control machine tool under non-constant temperature environment, can improve machine tool machining precision and realize real-time error compensation, utilize a variety of sensor data, environmental information and processing process parameter data, model and prediction are carried out in combination with deep learning technology, while improving prediction accuracy, significantly enhance the transparency and credibility of model, can be widely applied to industrial equipment process control temperature prediction regulation and other fields.

This application provides a method for processing an optical component with a light-reflecting cavity, comprising the steps of: processing a first coated component and a second coated component; processing two plates having the same reference surface on the same disc, positioning them using the reference surface, and processing the two plates respectively to obtain a third coated component and a fourth coated component; providing an assembly fixture to position the first coated component and the third coated component, fixing the bottom surface of the third coated component to the surface of the first coated component; positioning the second coated component using the assembly fixture, and bonding the surface of the second coated component to the third coated component and the fourth coated component. This method solves the problem that the processing of optical components in the prior art is difficult to achieve high-standard quality requirements.

This utility model discloses an installation buckle structure for electronic tags on turnover boxes, relating to the field of logistics container technology. It includes a turnover box body, with an electronic tag card disposed on the front side of the body. Connecting blocks corresponding to the electronic tag cards are disposed on both the left and right sides of the front side of the turnover box body. A snap-fit ​​post is fixed at the center of the front side of each connecting block. The electronic tag card has insertion holes on both the left and right sides corresponding to the snap-fit ​​posts. Mushroom-shaped pins are installed inside the snap-fit ​​posts. The snap-fit ​​posts of this utility model adopt a stepped structure with a thicker outer edge and a thinner inner edge, effectively preventing accidental detachment of the electronic tag. The snap-fit ​​post is locked by the interlocking structure of the mushroom-shaped pin and the snap-fit ​​groove, significantly improving vibration resistance. The snap-fit ​​groove inside the snap-fit ​​post integrates the functions of fixing the mushroom-shaped pin and inward movement under pressure. Through the cooperation of the two snap-fit ​​grooves on both sides with the first groove, the contact pressure is evenly distributed, avoiding localized stress concentration. This installation buckle structure not only achieves stable assembly of the electronic tag card but also makes the assembly and disassembly of the electronic tag card more efficient.

The utility model relates to the technical field of machining, in particular to a clamp for an eccentric part, which comprises an adapter and a positioning mechanism, the adapter is provided with a limit disc and an adapter part, the limit disc is provided with a positioning groove, the adapter part is arranged on one side of the limit disc deviating from the positioning groove and is coaxial with an eccentric shaft of the eccentric part, and the positioning mechanism is arranged on the adapter part. The positioning mechanism comprises a positioning piece and a positioning assembly, the positioning piece is installed on the limiting disc and connected with the base in the positioning groove in an inserted mode, one end of the positioning assembly is connected with the limiting disc, and the other end of the positioning assembly is used for providing acting force for abutting the base against the limiting disc. According to the clamp for the eccentric part, horizontal displacement of the base is limited through matching of the positioning part and the positioning groove, the positioning accuracy of the eccentric shaft is guaranteed, the base and the limiting disc are tightly abutted through abutting acting force provided by the positioning assembly, and therefore the eccentric part is accurately positioned, and the positioning accuracy is improved. The purpose of improving the machining precision and the machining quality of the eccentric shaft of the eccentric part is achieved.

The utility model relates to pipe fixing technology field especially, more particularly to a kind of clamping device for pipe cutting machine.For the clamping device of cutting machine, including support mechanism and at least two groups of clamping device that can simultaneously clamp same pipe by being oppositely spaced installation in support mechanism, cutting station for setting cutting knife is formed between adjacent two groups of clamping device.Each group of clamping device includes connecting rod mechanism, clamping component and drive component, and clamping component includes multiple clamping ends.The output end of drive component is rotatably connected with one or more connecting rods in connecting rod mechanism, and multiple connecting rods of connecting rod mechanism are fixedly connected with multiple clamping ends of clamping component, and drive component is used to drive the bidirectional movement of connecting rod mechanism, to drive the clamping end of clamping component to be close to each other or away from each other to clamp or release pipe.By the linkage design of clamping device, it makes that clamping action is efficient, synchronous and stable, can be adapted to multiple pipe diameter, need not to replace clamp, improves the concentricity and stability of clamping.