CN208937001U - A kind of cylinder internal diameter automatic measurement system for compressor cylinder production line - Google Patents

Abstract

The utility model relates to component of machine to measure detection technique field, it is concretely a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line, it include: workbench, survey the controllable contact air-gauge of son, automatic loading and unloading part device, the enhanced second control system and SPC analysis system be made of previous-next position machine, it is equipped on workbench and surveys the controllable contact air-gauge of son and the automatic loading and unloading part device around main shaft arrangement, workbench side is fixed with slave computer, position is equipped with the sizing apparatus of external host computer and composable cylinder production line near workbench, shifting mechanical arm and ancillary equipment, thus constitute cylinder internal diameter measurement, adjusting, adjustment, transfer and the automatic production line for not conforming to product isolation disposition, it ensure that the precision to cylinder internal diameter measurement, reasonable process capability and dynamic can Control property.

Description

A kind of cylinder internal diameter automatic measurement system for compressor cylinder production line

Technical field

The utility model relates to component of machine to measure detection technique field, concretely be a kind of for compressor cylinder The cylinder internal diameter automatic measurement system of production line.

Background technique

Compressor cylinder internal diameter measurement agreement be meant that in defined several transversal cross-sections perpendicular to tubular axis, The data such as each multiple diameters of section gauge, then the multinomial evaluation diameter and the form error that calculate cylinder inner surface are cylinder Internal diameter adjusting and postorder assembly provide foundation.

General measuring method:

1. manual measurement: axially multiple diameters in multiple sections and being carried out using inside diameter caliper manual measurement perpendicular to workpiece Relevant calculation, work efficiency is extremely low and easily makes mistakes.

2. air-gauge: measuring and calculate analysis/judgement to above-mentioned each cross section using air-gauge.But due to non- The gas nozzle of contact measurement instrument and the gap very little of work piece inner surface；Or survey of contact air-gauge is protected always with workpiece Contact is held, is difficult to need human assistance loading/unloading, work efficiency is also very low, and is easily damaged using shifting apparatus automatic loading and unloading workpiece Air-gauge related components, precision should be had by losing, thus not be able to satisfy the needs of automatic production line.If simple increase The gap of nozzle and work piece inner surface is stated, and the nonlinearity erron that will lead to measurement increases, and loses reasonable measurement accuracy and makes Use meaning.It in the control of process capability, is often calculated using artificial, output result lag cannot be effectively ensured reliable dynamic State process capability.

Designing one kind thus can be surveyed automatically with automatic loading and unloading workpiece, the cylinder internal diameter for compressor cylinder automatic assembly line Amount system be very it is necessary to.

Summary of the invention

The utility model breaches the problem of the prior art, and compressor can be used for automatic loading and unloading workpiece by devising one kind The cylinder internal diameter automatic measurement system of cylinder automatic assembly line.

In order to achieve the above object, the utility model devise a kind of cylinder internal diameter for compressor cylinder production line from Dynamic measuring system specifically includes that workbench, surveys the controllable contact air-gauge of son, automatic loading and unloading part device, by previous-next position machine The second control system and SPC analysis system of composition, it is characterised in that: the controllable contact gas of survey is fixed on the workbench Momentum instrument is equipped with automatic loading and unloading part device, the automatic loading and unloading part device around the controllable contact air-gauge of survey Then be installed on the workbench, workbench side is fixed with slave computer, near workbench position be equipped with external host computer with And sizing apparatus, the shifting mechanical arm, ancillary equipment of composable cylinder production line.

The controllable contact air-gauge of survey is mainly by base rack, pneumatic gauging ring, rod assembly, pneumatic gauging Air pipe and data processing module composition, the pneumatic gauging ring are fixed on base rack, the controllable contact gas of survey Momentum instrument is to survey the retractable contact air-gauge of son, and the base rack is mainly by column, fulcrum bearing, guiding cap, Zi Run Plain besring one, self-lubricating bearing two form, and the center of fulcrum bearing upper surface is equipped with one and plays the convex of guiding and positioning action Play cone；The center of the fulcrum bearing is equipped with through-hole one, self-lubricating bearing one is embedded in through-hole one, in fulcrum bearing Mandrel line is evenly equipped with 3 columns, and the bottom end of the column passes through fulcrum bearing using being screwed, and the top of column is fixed on guiding In cap, the top of the guiding cap is cone, and the lower part of guiding cap is cylindrical body, and the center of the guiding cap offers Stepped hole is embedded with self-lubricating bearing two in stepped hole, and the pull rod top of rod assembly is embedded in self-lubricating axis two, pull rod group The pull rod bottom end of part is embedded in self-lubricating bearing one, and the pull rod bottom end of the rod assembly is connected with the top of floating junction It connects, control cylinder is mounted on the lower section of workbench.

The table top center of workbench offers through-hole two, and pneumatic gauging ring, the pull rod are arranged on the rod assembly Several pairs of annular grooves, the position for opening up position and corresponding to pneumatic gauging ring of each pair of annular groove, institute are also provided on the pull rod of component The top cover stated in stepped hole is equipped with top cover, and the rod assembly is mainly by pull rod, drive disk, rubber-metal connector, card Ring composition, the rubber-metal connector are the entirety by being formed by the way of vulcanization between rubber spring and metal flange, The cylinder body of the control cylinder then uses elastic element and workbench flexible connection, controls the piston rod and floating junction phase of cylinder Even, the drive disk is set on pull rod, and drive disk is embedded with snap ring, position between twice annular groove in twice annular groove It is fastened on metal flange in the outer rim of the snap ring of top, underlying snap ring then holds the bottom surface of drive disk, makes drive disk Between twice annular groove, and pre-tighten；

Rubber spring is equipped between the lower surface of the metal flange and the upper surface of drive disk.

The automatic loading and unloading part device is mainly made of lifter plate, lifting pawl, lifting cylinder, linear guide, lifter plate Center is connected using fixing bolt with the linear guide through table surface, lifting cylinder, close to pneumatic measuring instrument direction Lifter plate lower surface use screw be fixed with can be radially adjusted with adapt to the workpiece of different wall thickness positioning lifting pawl, institute It states lifting pawl upper end and is equipped with guide angle close to the side of workpiece, the angle of the guide angle is 3 ° ~ 15 ° with respect to main shaft；By leading Work-handling/moved up and down is constituted to the conical surface of the periphery of cap, lifting claw radial/axial positioning surface and fulcrum bearing Floating positioning in journey.

Previous-next position machine can use enhanced collecting and distributing type (DCS) system configuration, and field bus system group can also be used State；The enhanced collecting-distributing system mainly implants X-MR monodrome moving range process capability analysis and Control in slave computer Software and dynamic qualification rate control program；Host computer can form enhanced DCS by input/output module and associated peripheral Or FCS automatic control system；

The SPC analysis system is mainly equipped in host computer, can to it is short-term medium-term and long-term process capability it is for statistical analysis And control, mean value, bias, the dispersion index of all kinds of measurement data can be evaluated respectively, and can directly display characterization normal state point The histogram of cloth state, the characterization very poor variable condition of mean value-- R control figure, to provide to each factor of influence process ability Analysis and research；Part short-term dynamic control function, is dispersed to slave computer, as the redundant configuration of second control system, and enhances Autonomous analysis/control ability of measuring system.

The pneumatic gauging ring is mainly made of elastic equilibrium ring, support ring and pneumatic measurement module, the pneumatic gauging Module is mainly surveyed son, locking swivel nut, air inlet by survey stroma, nozzle, air-gauge and is formed, and the survey stroma is embedded in support ring Sliding slot in；The bottom surface of support ring is mutually fixed using the screw with straight pin with stroma is surveyed, and is embedded in the support ring airtight Property screw thread and be directed toward and perpendicular to the air flue of main shaft, for installing nozzle and air inlet, the air inlet utilizes measurement tracheae Road is connected with solenoid valve, piezoelectric transducer；The survey stroma is the lever with elastic hinge, surveys stroma outer rim position benefit on the upper side Air-gauge is fixed with locking swivel nut and surveys son, and the top surface for surveying stroma is offered close to the position of drive disk presser feet with bevelled The inclined-plane of card slot, card slot can be matched with the inclined-plane of the presser feet of drive disk, and the top position of the inner ring for surveying stroma is provided with recessed The edge of slot, the groove and elastic equilibrium ring fastens, and pre-tightens elastic equilibrium ring；

The quantity of pneumatic gauging module is determined by the testing requirements of examined workpiece in the pneumatic gauging ring, but is necessarily idol Number, and a pair of of pneumatic gauging module is diametrically arranged symmetrically about main shaft same；

The elastic equilibrium ring is the circular metal spring that cross section is rectangle.

The pneumatic gauging air pipe connection is as follows: each nozzle corresponds to air flue by support ring and connects air inlet, each Air inlet is connected a piezoelectric transducer, after 2 piezoelectric transducers corresponding to the same diameter are in parallel and a solenoid valve Series connection, then it is connected to the three linked piece of supply air line, the electromagnetic coil of each solenoid valve accesses excitation circuit, and on-off is carried out by slave computer The periphery of real-time control, the fulcrum bearing and the guiding cap is equipped with close to switch, the voltage letter of each piezoelectric transducer output Number access signal transmission line export to the input module of slave computer and data processing module.

The initial axial cross section of the rubber spring is double wasp waist shapes of two end thickness intermediate thins, pre-tightens, pre-tightens in assembly When its axial cross section be intermediate thicker Double drum type；The Shao Er hardness of the rubber spring is 65-80.

It is the threaded curved surface member of an endpiece that the air-gauge, which surveys son, and curved edges radius of curvature is less than and center The radius of curvature at position, is the 1/10 to 1/5 of workpiece for measurement internal diameter, and the air-gauge surveys the surface hardness of the end curved surface of son >=HV750, the air-gauge is fixed in the screw hole for surveying stroma after surveying son with the screw thread and locking swivel nut of endpiece, described Air-gauge surveys son in the case where control cylinder, rod assembly, surveying the driving of stroma, can form gap with workpiece for measurement inner surface.

The nozzle is pneumatic gauging conical nozzle, and there are gas between each nozzle and corresponding survey stroma inner surface Gap.

The utility model compared with prior art, by surveying based on the controllable contact air-gauge of son, mating enhanced two Grade control system, SPC analysis system, automatic loading and unloading part device and peripheral equipment constitute cylinder internal diameter measurement, adjusting, adjustment and not The automatic production line of conjunction product isolation disposition ensure that the precision to cylinder internal diameter measurement, reasonable process capability and dynamic are controllable Property.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the primary structure cross-sectional view of the utility model.

Fig. 3 is the automatically controlled schematic diagram of the utility model.

Fig. 4 is the structural schematic diagram of air-gauge in the utility model.

Fig. 5 is the structural schematic diagram of pneumatic gauging ring in the utility model.

Fig. 6 is the top view of pneumatic gauging ring in the utility model.

Fig. 7 is the partial enlarged view of automatic loading and unloading part device in the utility model.

Fig. 8 is the pneumatic diagram of automatic loading and unloading part device in the utility model.

Fig. 9 is the pneumatic gauging air pipe figure of single pneumatic gauging ring in the utility model.

Specific embodiment

The utility model is described further in conjunction with attached drawing.

Referring to Fig. 1 ~ 9, the utility model devises a kind of cylinder internal diameter automatic measurement for compressor cylinder production line System specifically includes that workbench, surveys son controllable contact air-gauge, automatic loading and unloading part device, is made of previous-next position machine Second control system and SPC analysis system, the controllable contact air-gauge 2 of survey is fixed on the workbench 1, and surveys is sub It is equipped with automatic loading and unloading part device 3 around controllable contact air-gauge 2, the automatic loading and unloading part device 3 is then mounted on work On platform 1,1 side of workbench is fixed with slave computer 4, and position is equipped with external host computer 6 and constitutes near workbench 1 The sizing apparatus 7 of cylinder production line, shifting mechanical arm 8, ancillary equipment 9.

Real-time control module 4-1, data processing module 4-2 and input/output mould are equipped in the utility model in slave computer 4 Block 4-3 is equipped with configuration platform 6-1, data memory module 6-2, SPC analysis system 6-3, system in the host computer 6 and controls mould Block 6-4, touch screen display module 6-5, input/output module 6-6.

Previous-next position machine uses enhanced collecting and distributing type (DCS) system configuration in the utility model；The enhanced collecting and distributing type system System mainly implants X-MR monodrome moving range process capability analysis and Control software and dynamic qualification rate control journey in slave computer Sequence, when dynamic process ability in a short time and/or dynamic qualification rate occur it is abnormal, when being unsatisfactory for setting index, slave computer in time into Row alarm, and relevant device operation can be automatically stopped according to setting Scheme Choice, slave computer autonomous control ability is improved, is prevented When host computer or Transmission system break down, cause product that quality of lot defect occurs, when host computer and Transmission system occur When failure, by switching, slave computer and diameter adjusting equipment and shifting apparatus can also meet an urgent need combined running, and host computer can be by defeated Enter output module and associated peripheral forms enhanced DCS automatic control system.

After the completion of every cycle detection, calculate by multiple diameters of the data processing module 4-2 to each section and be divided in real time Analysis, can directly export the maximum/minimum diameter in each section, the data such as straightness of circularity, taper and axis are set according to items Determine index, determine whether the workpiece is qualified automatically, issue display signal, and statistic record, qualified/unqualified information of this sequence is passed Shifting mechanical arm 8 and other peripheral equipments are passed, following process is carried out or isolation is placed.

In the utility model SPC analysis system 6-3 can to it is short-term medium-term and long-term process capability it is for statistical analysis and control, Mean value, bias, the dispersion index of all kinds of measurement data can be evaluated respectively, and can directly display characterization normal distribution state Histogram, the characterization very poor variable condition of mean value-- R control figure, to provide the analysis and research to each factor of influence process ability Foundation；Part short-term dynamic control function, is dispersed to slave computer, as the redundant configuration of second control system, and enhances Autonomous analysis/control ability of measuring system issues compensating instruction to preamble internal diameter in time and adjusts to the project for exceeding control line Device, adjusting process parameter keep enough process capabilities, to note until workpiece diameter is restored to normal condition in control line The measured data of record, storage carries out the analytical calculation of long process ability and every statistical data, for sustained improvement provide according to According to.

The controllable contact air-gauge 2 of survey is stated in the utility model mainly by base rack, pneumatic gauging ring 2-9, drawing Bar assembly, pneumatic gauging air pipe and data processing module composition, the pneumatic gauging ring 2-9 are fixed on base rack, institute The controllable contact air-gauge 2 of survey is stated to survey the retractable contact air-gauge of son, the base rack is mainly by column 2-4, fulcrum bearing 2-2, guiding cap 2-5, one 2-3 of self-lubricating bearing, two 2-6 of self-lubricating bearing composition, the upper surface fulcrum bearing 2-2 Center is equipped with a raised cone, plays guiding and positioning action；The center of the fulcrum bearing 2-2 is equipped with through-hole one, leads to It is embedded with one 2-3 of self-lubricating bearing in hole one, is evenly equipped with 3 column 2-4, the column around the central axis of fulcrum bearing 2-2 The bottom end of 2-4 passes through fulcrum bearing 2-2 using being screwed, and the top of column 2-4 is fixed in guiding cap 2-5, the guiding cap The top of 2-5 is cone, and guiding when as piece installing, the lower part of guiding cap 2-5 is cylindrical body, cooperates automatic loading and unloading part device 3 one of the axial reference as positioning of floating, the center of the guiding cap 2-5 offers stepped hole, is embedded in stepped hole There is two 2-6 of self-lubricating bearing, the pull rod top of rod assembly is embedded in two 2-6 of self-lubricating axis, the pull rod bottom end of rod assembly It is embedded in one 2-3 of self-lubricating bearing, the pull rod bottom end of the rod assembly is connected with the top of floating junction 2-8, control Cylinder 2-1 is mounted on the lower section of workbench 1.

The table top center of workbench 1 offers through-hole two in the utility model, and pneumatic survey is arranged on the rod assembly Ring 2-9 is measured, is also provided with several couples of annular groove 2-11 on the pull rod 2-7 of the rod assembly, each pair of annular groove 2-11's opens up position The position corresponding to pneumatic gauging ring 2-9 is set, the top cover in stepped hole is equipped with top cover 2-12, and the rod assembly is main It is made of pull rod 2-7, drive disk 2-9-8, rubber-metal connector, snap ring 2-9-11, the rubber-metal connector is By the entirety formed by the way of vulcanization between rubber spring 2-9-1 and metal flange 2-9-9, the upper end metal flange 2-9-9 Equipped with a cyclic annular card slot, snap ring 2-9-11 outer circle is constrained after completing assembly, prevents snap ring 2-9-11 from falling off, the control cylinder The cylinder body of 2-1 then uses elastic element and 1 flexible connection of workbench, controls the piston rod and floating junction 2-8 phase of cylinder 2-1 Even, the drive disk 2-9-8 is set on pull rod 2-7, and drive disk 2-9-8 is located between twice annular groove 2-11, twice annular groove Snap ring 2-9-11 is embedded in 2-11, the outer rim for the snap ring 2-9-11 being located above is fastened on metal flange 2-9-9, is located at The snap ring 2-9-11 of lower section then holds the bottom surface of drive disk 2-9-8, is located at drive disk 2-9-8 between twice annular groove 2-11, and It is pre-tightened；

Rubber spring 2-9-1 is equipped between the lower surface of the metal flange 2-9-9 and the upper surface of drive disk 2-9-8.

Automatic loading and unloading part device 3 is mainly by lifter plate 3-1, lifting pawl 3-4, lifting cylinder 3-3, straight line in the utility model Guide rail 3-2 composition, lifter plate 3-1 is using fixing bolt and the linear guide 3-2 through 1 table top of workbench, lifting cylinder 3-3 phase Even, using screw to be fixed in the lower surface of the lifter plate 3-1 close to pneumatic measuring instrument direction can be radially adjusted to adapt to not With the lifting pawl 3-4 that the workpiece of wall thickness positions, the quantity of lifting pawl 3-4 can be adjusted according to implementation demand, and lifter plate can Radiai adjustment is carried out with respect to main shaft in the plane, lifter plate connects 2 lifting cylinder 3-3 and 2 linear guide 3-2, is able to The translation in main shaft direction is carried out, realizes that lifting pawl 3-4 is parallel to the motion profile of main shaft；It is terminated on the lifting pawl 3-4 The side of nearly workpiece is equipped with guide angle, and the angle of the guide angle is 3 ° ~ 15 ° with respect to main shaft, to adapt to due to wall thickness change And the workpiece for causing outer diameter to change；When lifting pawl 3-4 is located at limes superiors, workpiece lower end surface is accepted, and to workpiece lower end outer circle Cylinder carries out radial constraint, during lifting pawl 3-4 downlink, keeps axial direction to workpiece lower end, radial constraint, makes the axis of workpiece Line and air-gauge main shaft almost coaxial, convenient for the workpiece amount of stepping into instrument, when being located at limit inferior, bearing surface is lower than work Part datum plane, that is, fulcrum bearing positioning datum plane, the radial constraint and axial constraint of measured workpiece are by pneumatic measuring instrument master The fulcrum bearing of body substitutes；By the periphery of guiding cap 2-5, the circle of lifting claw 3-4 radial/axial positioning surface and fulcrum bearing 2-2 Poppet surface constitutes the floating positioning during work-handling/move up and down.

Pneumatic gauging ring 2-9 is mainly by elastic equilibrium ring 2-10, support ring 2-9-2 and pneumatic gauging mould in the utility model Block composition, the pneumatic gauging module mainly survey sub- 2-9-6, locking spiral shell by survey stroma 2-9-3, nozzle 2-9-4, air-gauge Set, air inlet 2-9-5 composition, the survey stroma 2-9-3 are embedded in the sliding slot of support ring 2-9-2, and composition only can be specified The kinematic pair being translatable in axial plane；The bottom surface of support ring 2-9-2 is using the screw with straight pin and survey stroma 2-9-3 phase It is fixed, air-tightness screw thread is embedded in the support ring 2-9-2 with direction and perpendicular to the air flue of main shaft, for installing nozzle 2-9-4 and air inlet 2-9-5, the air inlet are connected using measurement air pipe with solenoid valve, piezoelectric transducer.The survey stroma 2-9-3 is the lever with elastic hinge, surveys stroma 2-9-3 outer rim position on the upper side using locking swivel nut and is fixed with air-gauge survey Sub- 2-9-6, the top surface for surveying stroma 2-9-3 are offered close to the position of drive disk 2-9-8 presser feet with bevelled card slot 2-9-7, The inclined-plane of card slot 2-9-7 can be matched with the inclined-plane of the presser feet of drive disk 2-9-8, converted radial motion for axial movement, mentioned For surveying stroma and surveying radial forces of the son to contract, the top position of the inner ring for surveying stroma 2-9-3 is provided with groove 2- The edge of 9-10, the groove 2-9-10 and elastic equilibrium ring 2-10 fasten, and pre-tighten elastic equilibrium ring, by elastic equilibrium Based on ring 2-10, the elastic-restoring force moved out is provided to surveying stroma and surveying son；

The connection of pneumatic gauging air pipe is as follows in the utility model: each nozzle 2-9-4 corresponds to air flue by support ring and connects Tap into port 2-9-5, each air inlet 2-9-5 connects a piezoelectric transducer, and 2 piezoelectricity corresponding to the same diameter pass It connects after sensor is in parallel with a solenoid valve, then is connected to the three linked piece of supply air line；The electromagnetic coil access of each solenoid valve is encouraged Magnetic circuit, on-off carry out real-time control by slave computer, and the periphery of the fulcrum bearing 2-2 and the guiding cap 2-5 are equipped with close to opening It closes, provides the position signal of workpiece to slave computer, as the one of the prerequisite of control exciting current on/off, each piezoelectricity is passed The voltage signal access signal transmission line of sensor output is exported to the input module of slave computer and data processing module；

The data processing module receives the correspondence measured value inputted by data transmission link through slave computer input module Information of voltage after, calculate separately workpiece it is each by inspection cross section the real time data about diameter；

Each specifically included that by the measurement Value Data of inspection cross section

Diameter on same section on each assigned direction；

Maximum, minimum diameter and circularity on same section；

The detection projects such as the taper and axis verticality of work piece inner surface；

Real time data is inputted into slave computer control module, carries out the short-term dynamic process capability of X-MR monodrome range chart Analysis, and carry out the statistics of each detection individual event dynamic qualification rate, control.

The initial axial cross section of rubber spring 2-9-1 is double wasp waist shapes of two end thickness intermediate thins in the utility model, is being filled Timing pre-tightens, its pre- next axial cross section is intermediate thicker Double drum type, acts on and surveys stroma, drive disk and pull rod card slot for compensation The foozle of equal parts and the stiffness difference of each link of transmission chain guarantee each survey stroma synchronous working；The rubber spring 2- The Shao Er hardness of 9-1 is 65-80.

The controllable contact air-gauge 2 of son is surveyed in the utility model in loading/unloading part state and the upper and lower operational process of workpiece In, all air-gauges survey sub- 2-9-6 under system control, by control cylinder 2-1 and rod assembly, survey stroma 2-9-3 dress Driving is set, to contract, air-gauge is surveyed between sub- 2-9-6 and work piece inner surface and is formed with conducive to workpiece importing/upper and lower fortune The reasonable clearance of row/taking-up, and reduce and survey sub- abrasion；The present embodiment is according to workpiece diameter variation range and shifting apparatus positioning accurate Degree, gap takes 0.3-1.0；

The controllable contact air-gauge 2 of survey is multiple in elastic equilibrium loopback due to device elastic equilibrium ring 2-10 So that same diametrically a pair of in tested cross section is surveyed son under power effect and tend to be equal with the contact force of cylinder inboard wall, drive workpiece into Row is accurately positioned, and reduces coaxiality error of the work piece inner surface axis with respect to air-gauge main shaft.To make this to survey stroma Inner surface tends to be equal with the air gap of corresponding nozzle, makes gas pressure-gap curve linearly partly obtain filling part utilization, reduces The nonlinearity erron of measured value.

It is the threaded curved surface member of an endpiece, curved edges curvature that air-gauge, which surveys sub- 2-9-6, in the utility model Radius is smaller, and the radius of curvature in centre is larger, is the 1/10 to 1/5 of workpiece for measurement internal diameter, to reduce work piece inner surface Scratch the influences of the local dents to diameter measurement such as point；The air-gauge surveys the surface hardness of the end curved surface of sub- 2-9-6 >=HV750, the air-gauge is fixed on after surveying sub- 2-9-6 with the screw thread and locking swivel nut of endpiece surveys stroma 2-9-3's In screw hole, the air-gauge survey sub- 2-9-6 control cylinder 2-1, rod assembly, survey stroma 2-9-3 driving under, can with to It surveys work piece inner surface and forms gap, convenient for the importing of workpiece for measurement, up and down operation and taking-up.

In the utility model nozzle 2-9-4 be pneumatic gauging conical nozzle 2-9-4, each nozzle 2-9-4 with it is corresponding There are air gap, the diameters of corresponding the surveyed workpiece of the size of air gap between survey stroma 2-9-3 inner surface, and determine corresponding input Air pressure, as the original output of air-gauge measured value, which is sent to piezoelectricity by pipeline 34 by air inlet 2-9-5 and is passed Sensor 33 completes the raw information acquisition of pneumatic gauging.

The utility model in specific implementation, measures as follows:

Step 1: workpiece for measurement is placed on guiding cap 2-5 and lifting pawl 3-4 by external shifting mechanical arm 8, at this time gas Momentum instrument surveys sub- 2-9-6 and is in contraction state, and the pull rod 2-7 of air-gauge 2 is pulled by control cylinder 2-1 is in limit inferior；

Step 2: lifting pawl 3-4 downlink simultaneously keeps positioning of floating, under the collective effect of lifting pawl 3-4 and guiding cap 2-5, Workpiece for measurement and 2 main shaft almost coaxial of air-gauge are kept, and workpiece for measurement is set on air-gauge 2, with fulcrum bearing The circular cone major diameter and datum plane of 2-2 positions, and all air-gauges survey sub- 2-9-6 and are still in contraction state at this time；

Step 3: all air-gauges survey sub- 2-9-6 release, and rod assembly goes upward to upper pole by control cylinder 2-1 promotion Limit, in elastic equilibrium ring 2-10 and under surveying the collective effect of stroma 2-9-3 elastic hinge restoring force, each air-gauge surveys sub- 2-9- 6 contact measured workpiece inner walls, and workpiece for measurement is pushed, axis of workpiece to be measured is finely adjusted；

Step 4: keeping the state of step 3, each nozzle 2-9-4 sprays compressed air, carries out pneumatic gauging；

Step 5: converting, institute's measured data is transmitted in slave computer 4, data processing module is received by data through gas-electricity After the information of voltage for the correspondence measured value that transmission line is inputted through slave computer input module, it is each transversal by examining to calculate separately workpiece Real time data is inputted slave computer control module, carries out X-MR monodrome range chart by the real time data about diameter in face The analysis of short-term dynamic process capability, and the statistics of each detection individual event dynamic qualification rate, control are carried out, when short-term dynamic qualification rate And/or dynamic process ability be unsatisfactory for setting index when, alarm immediately.And production ordering can be stopped according to setting Scheme Choice, It is transmitted to associate device, and by real-time Data Transmission to host computer, carries out the online of comprehensive SPC analysis and Control and whole production line Control；

Step 6: air-gauge is surveyed sub- 2-9-6 and is shunk, and generates gap with workpiece for measurement inner wall, rod assembly is by control cylinder 2-1 is pulled to limit inferior, lifts pawl 3-4 uplink under the promotion of lifting cylinder 3-3, removes workpiece by shifting mechanical arm 8, according to Workpiece is distinguished and is stored by corresponding data handled by step 5.

The utility model central post 2-4 is the coaxial smooth cylindrical of two sections of reducings, and big axle journal is longer, to install guiding cap 2-5 and pneumatic gauging ring 2-9, pilot pin are used for installation bearing seat 2-2, the axially disposed one group of pin hole of each column 2-4 with Fixed pneumatic gauging ring 2-9, specific hole location and hole count are determined that the present embodiment is every vertical by the detection sectional plane position of examined workpiece 5 hole of column；The pull rod 2-7 is also the coaxial smooth cylindrical of two sections of reducings, based on big axle journal, axially disposed several couples of annular groove 2- 11, particular number and position by examined workpiece measured section quantity and position determine that the present embodiment is 5 pairs of totally 10 slots, small Axle journal is located at the lower end of pull rod, for the piston rod by floating junction 2-8 connection control cylinder 2-1.

Guiding cap 2-5 is the combined shaped of a circular cone and cylinder in the utility model, and upper section is cone, the circular cone Major diameter is equal with body diameter, and value range is that measured workpiece internal diameter subtracts gap needed for piece uploading, and under normal circumstances, gap takes 0.3mm to 1mm, the path value range of circular cone are that measured workpiece internal diameter subtracts shifting apparatus piece uploading error and there are gaps, are used Smoothly to import workpiece, around the center of guiding cap 2-5,3 stepped holes is evenly equipped with, are mutually assembled with 3 columns respectively.

One 2-3 of self-lubricating bearing and two 2-6 of self-lubricating bearing controls Jin Hegai by steel back, Cu-base powder in the utility model Property coating be combined, to steel high rigidity smooth surface have good antifriction, wear-resisting effect, meet guiding cap, pedestal and Oil-free self lubrication steady in a long-term requirement between center pull rod.

Every group of pneumatic gauging ring in the utility model configures the quantity of pneumatic gauging module in use, can be as needed Configuration mainly meets the detection accuracy (sampling number) of the indexs such as maximum gauge, minimum diameter, circularity, the present embodiment configuration For 3 pairs of pneumatic gauging modules/every pneumatic gauging ring.

Support ring 2-9-2 is flat ring in the utility model, thereon the uniformly distributed location hole of 3 corresponding column 2-4, with column Match, support ring 2-9-2 can be moved axially along column 2-4 and be passed through controllable type positioning pin and fix, and axial position is according to quilt It surveys product technology to require to determine, to adapt to the product measurement of same diameter series different lengths specification and requirement.

Elastic equilibrium ring 2-10 is the circular metal spring that cross section is rectangle, Ying Youyi after assembly in the utility model Determine radial tightening, pretightning force pushes each survey stroma to be radially displaced, and is enough to drive survey that workpiece is pushed to carry out axis Fine tuning, in a pair of stroma of surveying being arranged symmetrically along a certain diameter about main shaft in the diametrical direction, pretightning force size is basic Equal, active force and reaction force, corresponding each pair of pretightning force surveyed in stroma diametrical direction should be greater than calibrating to stroma bullet each other 3 times of elastic-restoring force or more at property hinge, to compensate the difference of the elastic-restoring force of elastic hinge from each other.

Elastic equilibrium ring 2-10 can guarantee in same diametrical direction, each pair of to survey the sub basic phase of contact force with workpiece inner wall Deng, and workpiece is pushed to be finely adjusted axis, it is relatively accurate to have been carried out by the cone of fulcrum bearing 2-2 since workpiece lower end is radial Positioning pushed back from micro deflection so surveying that son pushes as a result, being that work piece inner surface axis is carried out micro adjustment Just, this is made to tend to be of substantially equal to the air gap for surveying stroma inner wall and corresponding nozzle, purpose make measured value be maintained at the range of linearity with It is interior, reduce pneumatic gauging nonlinearity erron, under same measurement accuracy, it is possible to increase range.

Drive disk 2-9-8 is the curl discoid part with multiple presser feets, the quantity and angle of distribution of presser feet in the utility model Degree is corresponding with pneumatic gauging ring, and each presser feet end is inclined-plane, corresponding to the inclined-plane for surveying stroma groove, by drive disk 2-9-8 axis It is changed into the radial motion for surveying stroma free end 2-9-12 to movement, and then drives and survey sub- receiving/releasing.

In the utility model snap ring 2-9-11 be the circular ring metal elastomer with opening, the non-opening of annulus it is transversal Face is rectangle, generates pretightning force it acts as axial metal flange 2-9-9, rubber spring 2-9-1 and drive disk 2-9-8 and transmits Axial load.

In the utility model control cylinder 2-1 by two-position four-way solenoid valve control run, when rod chamber inflation when, piston to Lower movement simultaneously drives pull rod to limit inferior, and corresponding son of surveying is to contract, and when rodless cavity inflation, piston upwards simultaneously drive drawing Bar to limes superiors, corresponding son of surveying discharges outward, and the piston rod of control cylinder 2-1 is coupled by floating junction 2-8 with pull rod lower end, Cylinder body and bracket flexible connection.

Referring to Fig. 3 and Fig. 9, each air inlet 2-9-5 one piezoelectric transducer 33 of series connection and a solenoid valve 32 are connected to The three linked piece of supply air line, the voltage signal that piezoelectric transducer 33 exports access signal line 43, the electromagnetic wire of each solenoid valve 32 321 access excitation circuit of circle, on-off carry out real-time control by slave computer 4, and fulcrum bearing and guiding cap are equipped with close to switch, downwards Position machine 4 provides the position signal of workpiece, as the one of the prerequisite of control exciting current on/off, each piezoelectric transducer 33 The voltage signal of output accesses the data processing module of slave computer 4 by transmission line 43, calculates about the straight of each measurement section The real time data of diameter, and real time data is inputted into host computer 6, it stored, determined, SPC analysis, when dynamic process ability is discontented When sufficient, the adjustment instruction of the technological parameters such as expanding amount is provided to the numerical control sizing apparatus 7 of preamble by output module, until process It can be satisfaction, the analysis to storage data long process ability excessively, in time prompt influences the variation of the factor of product quality and changes Qualified/underproof Subsequent processing instructions of workpiece are issued into foundation, while from the output module of host computer 6 to shifting mechanical arm 8, It is isolated to unqualified；SPC analyzes data and real-time measuring data, quality judging information on the touch screen of host computer 6 Dynamically Announce, and to rejected product alarm/statistics.

Referring to Fig. 8, compressed air is supplied through three linked piece 51 to automatic loading and unloading part device 3, lifting cylinder pressure regulator valve 52 and control Cylinder pressure regulator valve 55 processed can be adjusted by electric-control system, to adapt to the variation of characteristic and working condition, each gas circuit it is disconnected/ Logical/commutation is realized that the exciting current of solenoid directional control valve is provided by field power supply by respective solenoid directional control valve, by electric-control system bottom Machine 4 controls, and guiding cap and each device of fulcrum bearing have close to switch, monitors workpiece present position and signal is fed back to slave computer 4, As the prerequisite for changing executive component working condition, when occur workpiece be not placed to benchmark or the inloading part height that does not lift or When the abnormal conditions such as midway clamping stagnation, equipment carries out self-test and issues corresponding warning message without further work.

In specific implementation, the measurement method of the utility model is to measure as follows:

Step 1: workpiece for measurement is placed on guiding cap 2-5 and lifting pawl 3-4 by external shifting mechanical arm 8, at this time gas Momentum instrument surveys sub- 2-9-6 and is in contraction state, and the pull rod 2-7 of air-gauge 2 is pulled by control cylinder 2-1 is in limit inferior；

Step 2: lifting pawl 3-4 downlink simultaneously keeps positioning of floating, under the collective effect of lifting pawl 3-4 and guiding cap 2-5, Workpiece for measurement and 2 main shaft almost coaxial of air-gauge are kept, and workpiece for measurement is set on air-gauge 2, with fulcrum bearing The circular cone major diameter and datum plane of 2-2 positions, and all air-gauges survey sub- 2-9-6 and are still in contraction state at this time；

Step 3: all air-gauges survey sub- 2-9-6 release, and pull rod 2-7 goes upward to limes superiors by control cylinder 2-1 promotion, In elastic equilibrium ring 2-10 and under surveying the collective effect of stroma 2-9-3 elastic hinge restoring moment, each air-gauge surveys sub- 2-9-6 Contact measured workpiece inner wall, and workpiece for measurement is pushed, axis of workpiece to be measured is finely adjusted；

Step 4: keeping the state of step 3, each nozzle 2-9-4 sprays compressed air, carries out pneumatic gauging；

Step 5: will be converted through gas-electricity, and institute's measured data will be transmitted to slave computer 4, data processing module is received by data After the information of voltage for the correspondence measured value that transmission line is inputted through slave computer input module, it is each transversal by examining to calculate separately workpiece Real time data is inputted slave computer control module, carries out X-MR monodrome range chart by the real time data about diameter in face The analysis of short-term dynamic process capability, and the statistics of each detection individual event dynamic qualification rate, control are carried out, when short-term dynamic qualification rate And/or dynamic process ability be unsatisfactory for setting index when, alarm immediately；And production ordering can be stopped according to setting Scheme Choice, It is transmitted to associate device, and by real-time Data Transmission to host computer, carries out the online of comprehensive SPC analysis and Control and whole production line Control；

Step 6: air-gauge is surveyed sub- 2-9-6 and is shunk, and generates gap with workpiece for measurement inner wall, pull rod 2-7 is by control cylinder 2-1 is pulled to limit inferior, lifts pawl 3-4 uplink under the promotion of lifting cylinder 3-3, removes workpiece by shifting mechanical arm 8, according to Workpiece is distinguished and is stored by the data finished handled by step 5.

In specific implementation, the cone path of fulcrum bearing is 148mm, major diameter 149.7mm, workpiece name internal diameter 150mm, minimum diameter 149.8mm, fulcrum bearing carry out guiding and axis location to workpiece lower end inner circle；Each column is then along axial direction 6 pin holes are arranged, to fix 3 pneumatic gauging rings, 5 grades of measurement positions is combined into, is examined for the product of 4 kinds of length specifications It surveys, the major diameter of guiding cap is equal with body diameter, it is contemplated that the repeatable accuracy of shifting mechanical arm grabbing workpiece lower end central point, Major diameter takes 149.5mm, and the path of guiding cap takes 147mm, and smoothly to import workpiece, air-gauge surveys sub- 2-9-6 curved surface side Edge radius of curvature be workpiece diameter 1/20, and the radius of curvature in centre be 1/10 workpiece diameter, each nozzle 2-9-4 with Corresponding survey stroma 2-9-3 inner surface forms air gap, average airgap 0.10mm, and used drive disk is 6 presser feets of band Curl discoid part, each presser feet end chamfer gradient are 1:8, and the Shao Er hardness of used rubber spring is 70-80, assembly Afterwards, relatively primitive thickness has the preload of 1:7, and used control cylinder is double acting small cylinder, cylinder diameter 75mm, by 24 Three-way electromagnetic valve control operation, in automatic loading and unloading part device, using 3 lifting pawls, the guide angle for lifting pawl is 5 °, later according to Step measures operation.

Claims (10)

1. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line specifically includes that workbench, surveys son controllably Contact air-gauge, automatic loading and unloading part device, the second control system being made of previous-next position machine and SPC analysis system, it is special Sign is: the controllable contact air-gauge (2) of survey is fixed on the workbench (1), the controllable contact of survey is pneumatic It measures and is equipped with automatic loading and unloading part device (3) around instrument (2), the automatic loading and unloading part device (3) is then mounted on workbench (1), Workbench (1) side is fixed with slave computer (4), and position is equipped with external host computer (6) and can group near workbench (1) At the sizing apparatus (7), shifting mechanical arm (8), ancillary equipment (9) of cylinder production line.

2. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 1, special Sign is: the controllable contact air-gauge (2) of survey mainly by base rack, pneumatic gauging ring (2-9), rod assembly, Pneumatic gauging air pipe and data processing module composition, the pneumatic gauging ring (2-9) are fixed on base rack, survey Controllable contact air-gauge (2) is to survey the retractable contact air-gauge of son, and the base rack is mainly by column (2- 4), fulcrum bearing (2-2), guiding cap (2-5), self-lubricating bearing one (2-3), self-lubricating bearing two (2-6) composition, fulcrum bearing (2- 2) center of upper surface is equipped with a raised cone for playing guiding and positioning action；The center of the fulcrum bearing (2-2) Equipped with through-hole one, self-lubricating bearing one (2-3) is embedded in through-hole one, the central axis around fulcrum bearing (2-2) is evenly equipped with 3 Column (2-4), the bottom end of the column (2-4) pass through fulcrum bearing (2-2) using being screwed, and the top of column (2-4) is fixed In guiding cap (2-5), the top of the guiding cap (2-5) is cone, and the lower part of guiding cap (2-5) is cylindrical body, described The center of guiding cap (2-5) offers stepped hole, and self-lubricating bearing two (2-6) is embedded in stepped hole, rod assembly Pull rod top is embedded in self-lubricating bearing two (2-6), and the pull rod bottom end of rod assembly is embedded at self-lubricating bearing one (2-3) In, the pull rod bottom end of the rod assembly is connected with the top of floating junction (2-8), and control cylinder (2-1) is mounted on work The lower section of platform (1).

3. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 2, special Sign is: the table top center of workbench (1) offers through-hole two, and pneumatic gauging ring (2-9), the drawing are arranged on rod assembly Several pairs of annular grooves (2-11) are also provided on the pull rod (2-7) of bar assembly, the position that opens up of each pair of annular groove (2-11) corresponds to The position of pneumatic gauging ring (2-9) is equipped with top cover (2-12) in the top cover of stepped hole, and the rod assembly is mainly by pull rod (2-7), drive disk (2-9-8), rubber-metal connector, snap ring (2-9-11) composition, the rubber-metal connector be by The entirety formed by the way of vulcanization between rubber spring (2-9-1) and metal flange (2-9-9), control cylinder (2-1) Cylinder body then uses elastic element and workbench (1) flexible connection, controls the piston rod and floating junction (2-8) phase of cylinder (2-1) Even, the drive disk (2-9-8) is set on pull rod (2-7), and drive disk (2-9-8) is located between twice annular groove (2-11), It is embedded in twice annular groove (2-11) snap ring (2-9-11), the outer rim of the snap ring being located above (2-9-11) is fastened on metal method On blue (2-9-9), underlying snap ring (2-9-11) then holds the bottom surface of drive disk (2-9-8), makes the position drive disk (2-9-8) Between twice annular groove (2-11), and pre-tighten；

Rubber spring (2-9- is equipped between the lower surface of the metal flange (2-9-9) and the upper surface of drive disk (2-9-8) 1).

4. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 1, special Sign is: the automatic loading and unloading part device (3) is mainly by lifter plate (3-1), lifting pawl (3-4), lifting cylinder (3-3), straight line Guide rail (3-2) composition, the center of lifter plate (3-1) is using fixing bolt and the linear guide (3- for running through workbench (1) table top 2), lifting cylinder (3-3) is connected, and is fixed in the lower surface of the lifter plate (3-1) close to pneumatic measuring instrument direction using screw It can be radially adjusted to adapt to the lifting pawl (3-4) of the workpiece of different wall thickness positioning, the lifting pawl upper end (3-4) is close to workpiece Side be equipped with guide angle, the angle of the guide angle is 3 ° ~ 15 ° with respect to main shaft；By the periphery of guiding cap (2-5), Lifting pawl (3-4) radial/axial positioning surface and the conical surface of fulcrum bearing (2-2) are constituted during work-handling/move up and down Floating positioning.

5. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 1, special Sign is: previous-next position machine can use enhanced collecting and distributing type (DCS) system configuration, and field bus system group can also be used State；The enhanced collecting-distributing system mainly implants X-MR monodrome moving range process capability analysis and Control in slave computer Software and dynamic qualification rate control program；Host computer can form enhanced DCS by input/output module and associated peripheral Or FCS automatic control system；

The SPC analysis system is mainly equipped in host computer, can to it is short-term medium-term and long-term process capability it is for statistical analysis and control System, can evaluate mean value, bias, the dispersion index of all kinds of measurement data respectively, and can directly display characterization normal distribution shape The histogram of state, the characterization very poor variable condition of mean value-- R control figure, to provide the analysis to each factor of influence process ability Research；Part short-term dynamic control function, is dispersed to slave computer, as the redundant configuration of second control system, and enhances survey Autonomous analysis/control ability of amount system.

6. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 2, special Sign is: the pneumatic gauging ring (2-9) is mainly by elastic equilibrium ring (2-10), support ring (2-9-2) and pneumatic measurement module Composition, the pneumatic gauging module mainly survey sub (2-9-6), locking by survey stroma (2-9-3), nozzle (2-9-4), air-gauge Swivel nut, air inlet (2-9-5) composition, the survey stroma (2-9-3) are embedded in the sliding slot of support ring (2-9-2)；Support ring (2- Bottom surface 9-2) is mutually fixed using the screw with straight pin with stroma (2-9-3) is surveyed, and is embedded with gas in the support ring (2-9-2) Close property screw thread and be directed toward and perpendicular to the air flue of main shaft, for installing nozzle (2-9-4) and air inlet (2-9-5), it is described into Port is connected using measurement air pipe with solenoid valve, piezoelectric transducer (33)；

The survey stroma (2-9-3) is the lever with elastic hinge, surveys stroma (2-9-3) outer rim position on the upper side and utilizes locking spiral shell Set is fixed with air-gauge and surveys sub (2-9-6), and the top surface for surveying stroma (2-9-3) is opened close to the position of drive disk (2-9-8) presser feet It can match with the inclined-plane of the presser feet of drive disk (2-9-8) equipped with the inclined-plane with bevelled card slot (2-9-7), card slot (2-9-7) It closes, the top position of the inner ring for surveying stroma (2-9-3) is provided with groove (2-9-10), and the groove (2-9-10) and elasticity are flat The edge of weighing apparatus ring (2-10) fastens, and pre-tightens elastic equilibrium ring；

The quantity of pneumatic gauging module is determined by the testing requirements of examined workpiece in the pneumatic gauging ring (2-9), but is necessarily Even number, and a pair of of pneumatic gauging module is diametrically arranged symmetrically about main shaft same；

The elastic equilibrium ring (2-10) is the circular metal spring that cross section is rectangle.

7. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 2, special Sign is: the pneumatic gauging air pipe connection is as follows: each nozzle (2-9-4) corresponds to air flue by support ring and connects air inlet (2-9-5), each air inlet (2-9-5) are connected a piezoelectric transducer (33), and 2 piezoelectricity corresponding to the same diameter pass It connects after sensor (33) is in parallel with a solenoid valve, then is connected to the three linked piece of supply air line, the electromagnetic coil of each solenoid valve connects Enter excitation circuit, on-off carries out real-time control by slave computer, and the periphery of the fulcrum bearing (2-2) and the guiding cap (2-5) is set Have close to switch, the voltage signal access signal transmission line of each piezoelectric transducer (33) output is exported to the input of slave computer Module and data processing module.

8. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 3, special Sign is: the initial axial cross section of the rubber spring (2-9-1) is double wasp waist shapes of two end thickness intermediate thins, pre- in assembly Tightly, its pre- next axial cross section is intermediate thicker Double drum type；The Shao Er hardness of the rubber spring (2-9-1) is 65-80.

9. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 6, special Sign is: it is the threaded curved surface member of an endpiece that the air-gauge, which surveys sub (2-9-6), and curved edges radius of curvature is less than The radius of curvature in centre, is the 1/10 to 1/5 of workpiece for measurement internal diameter, and the end that the air-gauge surveys sub (2-9-6) is bent Surface hardness >=the HV750 in face, the air-gauge are fixed on after surveying sub (2-9-6) with the screw thread and locking swivel nut of endpiece It surveys in the screw hole of stroma (2-9-3), the air-gauge surveys sub (2-9-6) in control cylinder (2-1), rod assembly, survey stroma Under the driving of (2-9-3), gap can be formed with workpiece for measurement inner surface.

10. a kind of cylinder internal diameter automatic measurement system for compressor cylinder production line according to claim 6, special Sign is: the nozzle (2-9-4) is pneumatic gauging conical nozzle (2-9-4), and each nozzle (2-9-4) is sub with corresponding survey There are air gaps between seat (2-9-3) inner surface.