CN108918122A - High-accuracy and constant pressure valve processing technology and its production line - Google Patents
High-accuracy and constant pressure valve processing technology and its production line Download PDFInfo
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- CN108918122A CN108918122A CN201810759650.2A CN201810759650A CN108918122A CN 108918122 A CN108918122 A CN 108918122A CN 201810759650 A CN201810759650 A CN 201810759650A CN 108918122 A CN108918122 A CN 108918122A
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- 238000012545 processing Methods 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 230000006835 compression Effects 0.000 claims abstract description 57
- 238000007906 compression Methods 0.000 claims abstract description 57
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 claims description 41
- 238000012360 testing method Methods 0.000 claims description 36
- 238000003801 milling Methods 0.000 claims description 25
- 238000004904 shortening Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of high-accuracy and constant pressure valve processing technology, the high-accuracy and constant pressure valve has the pressure values p of setting, includes the following steps：First, applying pressure to the pressure spring makes the pressure on its unit area reach the pressure values, the pressure spring is measured by compressed length, then the compression spring hole is processed with compression spring hole deep processing device, keep the depth of the compression spring hole corresponding with the compressed length, the pressure spring is placed in the compression spring hole, then completes the assembly of the high-accuracy and constant pressure valve with assembly equipment.High-accuracy and constant pressure valve production line is also disclosed.The present invention improves the constant pressure precision and yield rate of constant pressure valve.
Description
Technical field
The present invention relates to constant pressure valves to produce and process technical field, and especially a kind of high-accuracy and constant pressure valve processing technology also relates to
And a kind of high-accuracy and constant pressure valve production line.
Background technique
The working principle of constant pressure valve is：As shown in Figure 1, constant pressure valve includes upper valve body 141, lower valve body 142, separating device
143 and elastic device, elastic device be placed in lower valve body 142, upper valve body 141 and lower valve body 142 are separated by separating device 143
Two separate spaces, elastic device include pressure spring 8 and the compression spring hole being located in lower valve body 142 144, and when assembly, pressure spring 8 is by precompressed
Contracting makes it have reaction force to separating device 143, in use, filling it for separating when the pressure in upper valve body 141 becomes larger
Set 143 pressure be greater than elastic device setting value when, separating device 143 by pressure spring 8 further compression so that upper valve body 141 with
Lower valve body 142 is connected to, and the fluid of upper valve body 141 makes pressure become smaller to the leakage of lower valve body 142, until pressure spring 8 is by separating device 143
It resets, to play the effect for keeping 141 pressure of upper valve body constant.In the prior art, the processing technology of constant pressure valve is：By pressure spring
Length is set in the margin of tolerance, the depth tolerances value range of compression spring hole is reduced as far as possible, but the constant pressure that actual effect obtains
The pressure value fluctuation range that valve is opened is big, and the constant pressure constant value of mark is not achieved, the reason is that the material of F=Kx, K value and pressure spring
And the value that the combined factors such as effect of heat treatment embody, the K value of each pressure spring are different from, moreover, x value refers to that pressure spring is pressurized
Length varying value afterwards, therefore only control pressure spring length tolerance in a free state and the depth tolerances range of compression spring hole, no
High-precision constant pressure valve can be obtained, while also improving rejection rate, reduces yield.
Summary of the invention
The first problem that the present invention solves is to provide a kind of raising precision, reduces rejection rate, improves yield high-accuracy and constant
Pressure valve processing technology.
The Second Problem that the present invention solves is to provide high-accuracy and constant pressure valve production corresponding with above-mentioned processing technology
Line.
To solve first problem, the present invention provides a kind of high-accuracy and constant pressure valve processing technology, the high-accuracy and constant pressure valve
Including upper valve body, lower valve body, separating device and elastic device, the elastic device includes pressure spring and the pressure spring that is located in lower valve body
Hole, the high-accuracy and constant pressure valve have the pressure values p of setting, include the following steps：Firstly, applying pressure to the pressure spring makes it
Pressure on unit area reaches the pressure values, measures the pressure spring by compressed length, is then added with pressure spring hole depth
Tooling sets the processing compression spring hole, keeps the depth of the compression spring hole corresponding with the compressed length, the pressure spring is set
In in the compression spring hole, then complete with assembly equipment the assembly of the high-accuracy and constant pressure valve.
Beneficial effect：Since the constant pressure value test pressure spring using constant pressure valve is by compressed length, after being pressurized
Length value processed springs hole, the length after the depth of compression spring hole is compressed with pressure spring are corresponding：When assembling constant pressure valve, by the pressure
After spring is pressed into the compression spring hole with the depth, by compressed length when length that pressure spring is presented by compression is equal to test, from
And ensure that the pressure accuracy of constant pressure valve, high-precision constant pressure valve is obtained, since pressure spring is by the error of compressed length
It is to be determined by the precision of measurement operation, so that can suitably relax to the required precision of the drift of pressure spring, to reduce pressure
The rejection rate of spring, improves yield.
As further improvement to above-mentioned technical proposal, constant pressure survey is carried out to the high-accuracy and constant pressure valve after assembly
Examination.
To solve Second Problem, the present invention provides a kind of high-accuracy and constant pressure valve production line, the high-accuracy and constant pressure valve packets
Include upper valve body, lower valve body, separating device and elastic device, the elastic device includes pressure spring and the pressure that is located in the lower valve body
Spring hole, the pressure spring in a free state have length value a, the high-accuracy and constant pressure valve have setting pressure values p, including
Pressure spring testing device, compression spring hole deep processing device；The pressure spring testing device includes test chassis, pressure sensor, pressurization
Device and decrement reading device；The pressurizing device includes measurement motor, force frame and measurement screw device, the measurement
Motor drives measurement screw device rotation, and the measurement screw device affects force frame movement, the force frame and
Pressure sensor face, the pressure spring are placed between force frame and the pressure sensor, and the decrement reading device is anti-
Answer pressured state shortening value b；
The compression spring hole deep processing device includes processing rack；Work piece holder；Milling cutter device；The milling cutter device includes processing
Motor and by the motor-driven milling cutter of the processing；Guide rail, the guide rail and the work piece holder cooperate, and make the work piece holder
It can be moved along guide rail, the guide rail is parallel to the milling cutter axis；The lower valve body is fixed on the work piece holder, is made described
Compression spring hole and the milling cutter are coaxial；Auto-feeder, the auto-feeder includes feeding motor and feed arrangement, described
Feeding motor drives feed arrangement to control the work piece holder and moves along the guide rail；The auto-feeder, milling cutter device
And guide rail is fixed in the processing rack；When the hole outer of the compression spring hole and the milling cutter offset, the auto-feed
Device is in initial position on the rack, when the hole bottom of the compression spring hole offsets with the milling cutter, the auto-feed dress
It sets on the rack in final position, the distance value of the initial position and final position, with the length value a and pressured state
The difference of shortening value b is corresponding.
Beneficial effect：It measures motor and drives measurement screw device rotation, the measurement screw device affects the force frame
Frame is mobile, carries out applied voltage test to the pressure spring being placed between the force frame and pressure sensor, tests the pressure spring in perseverance
Length varying value under constant-pressure tests the length varying value of the pressure spring under a constant by pressure spring testing device, will
The length standard value of pressure spring in a free state converses the depth value of corresponding compression spring hole with measured length varying value, just
In the depth for processing the compression spring hole with compression spring hole deep processing device, this contrary operation ensure that pressure spring generates this length
It is constant to spend pressure suffered when changing value, the initial position of auto-feeder and the distance value of final position, with the length
The difference of value a and pressured state shortening value b are corresponding, i.e.,：When assembling constant pressure valve, which is pressed into the compression spring hole with the depth
Afterwards, by compressed length when the length that pressure spring is presented by compression is equal to test, to ensure that the pressure of constant pressure valve is accurate
Degree, has obtained high-precision constant pressure valve.
A concrete scheme as above-mentioned technical proposal, the test chassis include the workbench and electricity to fix as one
Machine fixed frame, the motor fixing frame are placed in the lower section of workbench, and the measurement motor is fixed on the motor fixing frame, institute
It is fixed on the workbench to state pressure sensor, the measurement screw device includes measurement screw rod and matched measurement spiral shell
The output shaft of mother set, the measurement screw rod and the measurement motor is coaxially affixed, the measurement nut set and the force frame
Lower end it is affixed, it is described force frame the affixed force application board in top, the force application board is placed in the top of the workbench, described to apply
The lower end of power frame is placed in the lower section of the workbench, and the pressure sensor protrudes into the force frame and the force application board
Face.
As a further improvement of the above technical scheme, the n that the force frame further includes bottom plate and is fixed on bottom plate
Root pull rod, n >=3, the top of the pull rod and the force application board are affixed, and force application board lower end surface is fixed with the briquetting of face pressure spring；
The pressurizing device further includes the guide post of two fixations on the workbench, and the guide post is parallel to the screw rod, institute
Stating has pilot hole on force application board, the guide post is adapted with the pilot hole.
As a further improvement of the above technical scheme, the n that the force frame further includes bottom plate and is fixed on bottom plate
Root pull rod, n >=3, the top of the pull rod and the force application board are affixed, and force application board lower end surface is fixed with the briquetting of face pressure spring；
The pressurizing device further includes the guide post of two fixations on the workbench, and the guide post is parallel to the screw rod, institute
Stating has pilot hole on force application board, the guide post is adapted with the pilot hole.
A concrete scheme as above-mentioned technical proposal, the workbench upper surface are fixed with pressure sensor installation
Seat, the pressure sensor are mounted in the pressure sensor mounting base, and the pressure spring is fixed on the pressure sensor
End face.
A concrete scheme as above-mentioned technical proposal, the feed arrangement include mutually matched feed screw and into
Nut set is given, the feed screw is rotatably supported in the processing rack, the feed nut set and the workpiece clamp
Have affixed, the feed screw is parallel to the guide rail, and the feeding motor drives feed screw rotation；The feed screw
Both ends are equipped with the protective switch for connecting with feeding motor and stalling for controlling feeding motor.
Further technical solution is that the work piece holder includes clamp tool and dynamic fixture, and the dynamic fixture includes cylinder,
Piston rod, compression spring hole and the milling cutter of the cylinder are coaxial and are sequentially arranged, and the dynamic fixture further includes mounting base, and the cylinder is solid
It is scheduled in mounting base, the mounting base fixes as one with clamp tool, and the piston rod end is fixed with force-application block.
Further technical solution be further include PLC controller, the pressure spring length testing device further includes pressure inverting
Device, the pressure sensor, pressure transmitter, measurement motor, feeding motor and processing motor and the PLC controller Electricity Federation
It connects, the PLC controller receives the pressure sensor and measures the data of motor, and converses the corresponding depth of the compression spring hole
Degree, the PLC controller also control the feeding motor and processing motor, make distance and the institute of the work piece holder axial movement
It is corresponding to state the corresponding depth of compression spring hole.
Further technical solution is that the decrement reading device is the counting module in the PLC controller, institute
It states counting module and converts electric signal for the test motor turnning circle and the product for the screw pitch multiplication for testing screw rod, obtain described
The difference of length value a and pressured state shortening value b.
Compared with prior art, high-accuracy and constant pressure valve production line of the invention, the length of pressure spring is directly read by PLC controller
The numerical value of the difference of angle value a and pressured state shortening value b, and corresponding pressure spring hole depth is conversed, it is directly controlled by PLC controller
Motor and processing motor are fed, to carry out pressure spring hole machined automatically, artificial convenient for saving, a worker can three works of pipe
Position, from the test of operation pressure spring, processing compression spring hole to assembly, by once.
Detailed description of the invention
Fig. 1 is the cross-sectional view of high-accuracy and constant pressure valve；
Fig. 2 is the schematic diagram of high-accuracy and constant pressure valve production line of the invention；
Fig. 3 is the structural schematic diagram of pressure spring testing device；
Fig. 4 is the structural schematic diagram of compression spring hole deep processing device；
Fig. 5 is circuit control principle block diagram.
Specific embodiment
The invention will be further described combined with specific embodiments below.
High-accuracy and constant pressure valve processing technology embodiment
As shown in Figure 1, the high-accuracy and constant pressure valve in the present embodiment includes upper valve body 141, lower valve body 142, separating device 143 and bullet
Property device, elastic device is placed in lower valve body 142, and upper valve body 141 and lower valve body 142 are separated into two solely by separating device 143
Vertical space, elastic device includes pressure spring 8 and the compression spring hole being located in lower valve body 142 144, the length of pressure spring 8 in a free state
In the margin of tolerance, the length value of the pressure spring 8 of the present embodiment in a free state is value:47 ± 1.0mm encloses number：7.5 circle；Bullet
The closing of spring tail portion；Outer diameter：24.2~24.5mm；Line footpath:3.2±0.10mm；When spring-compressed is to 32.2mm, pressure is:245
±10N；Tail portion polishes, and mill both ends inner hole batch cutting edge of a knife or a sword is heat-treated after impulse- free robustness forming：350 DEG C continue 30 minutes；It is wanted after heat treatment
Ask product indeformable；Material：304 stainless steels, performance meet AS2837；Spring stiffness：15±1.0N/mm.High-accuracy and constant pressure valve
Pressure values p with setting.
The high-accuracy and constant pressure valve processing technology of the present embodiment：Referring to fig. 2, firstly, by pressure spring testing device 100 to pressure spring
8 application pressure make the pressure on its unit area reach pressure values p, measure pressure spring 8 by compressed length, then use compression spring hole
Deep processing device 200 processes compression spring hole 144, keeps the depth of compression spring hole 144 corresponding with compressed length, pressure spring 8 is set
In in compression spring hole 144, then complete with assembly equipment the assembly of high-accuracy and constant pressure valve.High-accuracy and constant pressure valve after assembly is carried out permanent
Pressure test.
High-accuracy and constant pressure valve production line embodiment
The high-accuracy and constant pressure valve processed in the present embodiment is same as the previously described embodiments, reviews Fig. 1, pressure spring 8 is in a free state
Have length value a, high-accuracy and constant pressure valve have setting pressure values p.
As shown in Fig. 2, the production line of the high-accuracy and constant pressure valve of the present embodiment includes pressure spring testing device 200, pressure spring hole depth
Spend processing unit (plant) 100, PLC controller 300 and installation test station.
As shown in figure 3, pressure spring testing device 200 includes that test chassis, pressure sensor 7, pressurizing device and decrement are read
Device is taken, pressurizing device includes the measurement motor 3 being fixed on motor fixing frame 2, force frame 5 and measurement screw device 4, is surveyed
Measuring motor 3 drives measurement screw device 4 to rotate, and measurement screw device 4 affects force frame 5 mobile, and force frame 5 and pressure pass
7 face of sensor, pressure spring 8 are placed between pressure sensor 7 and force frame 5, apply pressure, pressure spring to pressure spring 8 by force frame 5
8 reaction force forms pressure on pressure sensor 7, when pressure is equal to the pressure values p of high-accuracy and constant pressure valve setting, compression
Measure the pressured state shortening value b of reading device reaction pressure spring 8.
Test chassis includes the workbench 1 and motor fixing frame 2 to fix as one, and motor fixing frame 2 is placed in workbench 1
Lower section, pressure sensor 8 are fixed on workbench 1, and measurement screw device 4 includes measurement screw rod 41 and matched measurement spiral shell
Mother set 101, measurement screw rod 41 and the output shaft for measuring motor 3 are coaxially affixed, and force frame 5 includes bottom plate and is fixed on bottom plate
N root pull rod 51, n >=3, the measurement nut set 101 and bottom plate of the present embodiment be integrally formed, and the top for the frame 5 that exerts a force affixed is applied
Power plate 103, the top of pull rod 51 and force application board 103 are affixed, pressure sensor 7 protrude into force frame 5 in force application board 103 just
Right, 1 upper surface of workbench of pressure spring testing device is fixed with pressure sensor mounting base 6, and pressure sensor 7 is mounted on pressure biography
In sensor mounting base 6, pressure spring 8 is fixed on 7 upper surface of pressure sensor, and 103 lower end surface of force application board is fixed with determining for face pressure spring 8
Position block 9.Measurement motor 3 is servo motor.
In the present embodiment, pressurizing device further includes two guide posts being fixed on workbench 1 102, and guide post 102 is parallel
In there is pilot hole on screw rod 4, force application board 103, guide post 102 is adapted with pilot hole.
As shown in figure 4, the compression spring hole deep processing device 100 of the present embodiment is used to process the compression spring hole 144 of lower valve body 142
Depth, including；Process rack 10；Work piece holder 1001；Milling cutter device 1002；Auto-feeder 1003；Guide rail 17；Milling cutter dress
Setting 1002 includes the milling cutter 12 that processing motor 11 and processed motor 11 drive；Guide rail 17 and work piece holder 1001 cooperate, and make work
Part fixture 1001 can be moved along guide rail 17, and guide rail 17 is parallel to 12 axis of milling cutter；Lower valve body 142 is fixed on work piece holder, is made
Compression spring hole 144 and milling cutter 12 are coaxial；Auto-feeder 1003 includes feeding motor 20 and feed arrangement 201, feeds motor 20
It drives feed arrangement 201 to control work piece holder to move along guide rail 17；Auto-feeder 1003, milling cutter device 1002 and guide rail 17
It is fixed in processing rack 10.
Feed arrangement 201 includes mutually matched feed screw 22 and feed nut set 19, and feed screw 22 is rotationally
It is supported in processing rack 10, feed nut set 19 is affixed with work piece holder 1001, and feed screw 22 is parallel to guide rail 17, feeding
Motor 20 drives feed screw 22 to rotate.
Work piece holder 1001 includes clamp tool 13 and dynamic fixture 15, and moving fixture 15 includes cylinder 16 and mounting base 151, cylinder
16 piston rod, compression spring hole 144 and milling cutter 12 is coaxial and is sequentially arranged.Cylinder 16 is fixed in mounting base 151, mounting base 151
13 fix as one with clamp tool, the piston rod end of cylinder 16 is fixed with force-application block 21, force-application block 21 by lower valve body 142 push up to
Clamp tool 13, keeps fixture 15 more stable to the force of lower valve body 142, and clamp tool 13 clamps lower valve body 142 with dynamic fixture 15
It is more stable.
The both ends of feed screw 22 are equipped with the protective switch for connecting with feeding motor 20 and stalling for controlling feeding motor
18.Protective switch 18 primarily serves protective action, continues to feed or retreat for preventing feeding motor 20 from generating failure and not shutting down
The case where damaging equipment appearance.
Fig. 2 combination Fig. 5 is reviewed, pressure spring length testing device 200 further includes pressure transmitter 71, pressure sensor 7, pressure
Transmitter 71, measurement motor 3, feeding motor 20 and processing motor 11 are electrically connected with PLC controller 300, and PLC controller 300 connects
It receives pressure sensor 7 and measures the data that motor 3 transmits, and converse the corresponding depth of compression spring hole 144, PLC controller 300 is also
Control feeding motor 20 and processing motor 11, the distance depth corresponding with compression spring hole 144 for moving axially work piece holder 1001
It is corresponding.
Decrement reading device is the counting module in PLC controller 300, and counting module will test 3 turnning circle of motor
And the product that the screw pitch of test screw rod 41 is multiplied is converted into electric signal, obtains the difference of length value a and pressured state shortening value b.
High-accuracy and constant pressure valve production line of the invention is directly read the length value a of pressure spring 8 by PLC controller 300 and is pressurized
The numerical value of the difference of state shortening value b, and corresponding 144 depth of compression spring hole is conversed, feeding is directly controlled by PLC controller 300
Motor 20 and processing motor 11 are processed to carry out compression spring hole 144 automatically, and artificial convenient for saving, a worker can be pipe three
Station detects, by once from the test of operation pressure spring, processing compression spring hole to assembly.
Claims (10)
1. a kind of high-accuracy and constant pressure valve processing technology, the high-accuracy and constant pressure valve includes upper valve body, lower valve body, separating device and bullet
Property device, the elastic device includes pressure spring and the compression spring hole that is located in lower valve body, and the high-accuracy and constant pressure valve has setting
Pressure values p, which is characterized in that include the following steps：The pressure on its unit area is reached firstly, applying pressure to the pressure spring
To the pressure values, the pressure spring is measured by compressed length, then processes the pressure spring with compression spring hole deep processing device
Hole keeps the depth of the compression spring hole corresponding with the compressed length, the pressure spring is placed in the compression spring hole, then is used
Assembly equipment completes the assembly of the high-accuracy and constant pressure valve.
2. high-accuracy and constant pressure valve processing technology according to claim 1, it is characterised in that：To the high-precision after assembly
Constant pressure valve carries out constant pressure test.
3. a kind of high-accuracy and constant pressure valve production line, the high-accuracy and constant pressure valve includes upper valve body, lower valve body, separating device and elasticity
Device, the elastic device include pressure spring and the compression spring hole that is located in the lower valve body, and the pressure spring has in a free state
Length value a, the high-accuracy and constant pressure valve have the pressure values p of setting, it is characterised in that：Including pressure spring testing device, compression spring hole
Deep processing device；The pressure spring testing device includes that test chassis, pressure sensor, pressurizing device and decrement read dress
It sets；The pressurizing device includes measurement motor, force frame and measurement screw device, and the measurement motor drives measurement screw rod dress
Rotation is set, the measurement screw device affects the force frame mobile, and the force frame and pressure sensor face are described
Pressure spring is placed between force frame and the pressure sensor, and the decrement reading device reacts the pressured state of the pressure spring
Shortening value b；
The compression spring hole deep processing device includes processing rack；Work piece holder；Milling cutter device；The milling cutter device includes processing
Motor and by the motor-driven milling cutter of the processing；Guide rail, the guide rail and the work piece holder cooperate, and make the work piece holder
It can be moved along guide rail, the guide rail is parallel to the milling cutter axis；The lower valve body is fixed on the work piece holder, is made described
Compression spring hole and the milling cutter are coaxial；Auto-feeder, the auto-feeder includes feeding motor and feed arrangement, described
Feeding motor drives feed arrangement to control the work piece holder and moves along the guide rail；The auto-feeder, milling cutter device
And guide rail is fixed in the processing rack；When the hole outer of the compression spring hole and the milling cutter offset, the auto-feed
Device is in initial position on the rack, when the hole bottom of the compression spring hole offsets with the milling cutter, the auto-feed dress
It sets on the rack in final position, the distance value of the initial position and final position, with the length value a and pressured state
The difference of shortening value b is corresponding.
4. high-accuracy and constant pressure valve production line according to claim 3, it is characterised in that：The test chassis includes affixed
The workbench and motor fixing frame of one, the motor fixing frame are placed in the lower section of workbench, and the measurement motor is fixed on institute
It states on motor fixing frame, the pressure sensor is fixed on the workbench, and the measurement screw device includes measurement screw rod
And matched measurement nut set, the output shaft of the measurement screw rod and the measurement motor is coaxially affixed, the measurement spiral shell
Mother set and the lower end of the force frame are affixed, and the affixed force application board in top of the force frame, the force application board is placed in described
The lower end of the top of workbench, the force frame is placed in the lower section of the workbench, and the pressure sensor protrudes into described apply
In power frame with the force application board face.
5. high-accuracy and constant pressure valve production line according to claim 4, it is characterised in that：The force frame further includes bottom plate
And it is fixed on the n root pull rod on bottom plate, n >=3, the top of the pull rod and the force application board are affixed, and force application board lower end surface is fixed
There is the briquetting of face pressure spring；The pressurizing device further includes the guide post of two fixations on the workbench, the guide post
It is parallel to the screw rod, there is pilot hole on the force application board, the guide post is adapted with the pilot hole.
6. high-accuracy and constant pressure valve production line according to claim 4, it is characterised in that：The workbench upper surface is fixed with
Pressure sensor mounting base, the pressure sensor are mounted in the pressure sensor mounting base, and the pressure spring is fixed on institute
State pressure sensor upper surface.
7. high-accuracy and constant pressure valve production line according to claim 3, it is characterised in that：The feed arrangement includes phase interworking
The feed screw and feed nut set of conjunction, the feed screw are rotatably supported in the processing rack, the feeding spiral shell
Mother set and the work piece holder are affixed, and the feed screw is parallel to the guide rail, and the feeding motor drives feed screw to turn
It is dynamic；The both ends of the feed screw are equipped with the protective switch for connecting with feeding motor and stalling for controlling feeding motor.
8. high-accuracy and constant pressure valve production line according to claim 3, it is characterised in that：The work piece holder includes clamp tool
And dynamic fixture, the dynamic fixture includes cylinder, and piston rod, compression spring hole and the milling cutter of the cylinder are coaxial and are sequentially arranged, described
Dynamic fixture further includes mounting base, and the cylinder is fixed in mounting base, and the mounting base fixes as one with clamp tool, the work
Stopper rod end is fixed with force-application block.
9. according to described in any item high-accuracy and constant pressure valve production lines of claim 3 to 8, it is characterised in that：It further include PLC control
Device processed, the pressure spring length testing device further includes pressure transmitter, the pressure sensor, pressure transmitter, measurement motor,
Feeding motor and processing motor are electrically connected with the PLC controller, and the PLC controller receives the pressure sensor and measurement
The data of motor transmission, and converse the corresponding depth of the compression spring hole, the PLC controller also control the feeding motor and
Motor is processed, keeps the distance depth corresponding with the compression spring hole of the work piece holder axial movement corresponding.
10. high-accuracy and constant pressure valve production line according to claim 9, it is characterised in that：The decrement reading device
It is the counting module in the PLC controller, the counting module is by the test motor turnning circle and tests the spiral shell of screw rod
Product away from multiplication is converted into electric signal, and is converted into the difference of the length value a and pressured state shortening value b.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810759650.2A CN108918122B (en) | 2018-07-11 | 2018-07-11 | High-precision constant-pressure valve processing technology and production line thereof |
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| CN201810759650.2A CN108918122B (en) | 2018-07-11 | 2018-07-11 | High-precision constant-pressure valve processing technology and production line thereof |
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| CN108918122B CN108918122B (en) | 2023-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114020058A (en) * | 2021-11-03 | 2022-02-08 | 中国工程物理研究院机械制造工艺研究所 | Internal force loading device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202852100U (en) * | 2012-09-26 | 2013-04-03 | 苏州赛华仪控股份有限公司 | Constant pressure valve |
| CN104259536A (en) * | 2014-09-25 | 2015-01-07 | 天津市奥瑞特阀门有限公司 | Valve plate valve opening trimming device |
| CN107621246A (en) * | 2017-09-19 | 2018-01-23 | 芜湖炬胜机电设备厂 | Spring detection utensil easy to operate |
| CN208879774U (en) * | 2018-07-11 | 2019-05-21 | 鹤山麦瑟文卫浴有限公司 | High-accuracy and constant pressure valve production line |
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2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202852100U (en) * | 2012-09-26 | 2013-04-03 | 苏州赛华仪控股份有限公司 | Constant pressure valve |
| CN104259536A (en) * | 2014-09-25 | 2015-01-07 | 天津市奥瑞特阀门有限公司 | Valve plate valve opening trimming device |
| CN107621246A (en) * | 2017-09-19 | 2018-01-23 | 芜湖炬胜机电设备厂 | Spring detection utensil easy to operate |
| CN208879774U (en) * | 2018-07-11 | 2019-05-21 | 鹤山麦瑟文卫浴有限公司 | High-accuracy and constant pressure valve production line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114020058A (en) * | 2021-11-03 | 2022-02-08 | 中国工程物理研究院机械制造工艺研究所 | Internal force loading device |
| CN114020058B (en) * | 2021-11-03 | 2023-05-16 | 中国工程物理研究院机械制造工艺研究所 | Internal force loading device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108918122B (en) | 2023-11-03 |
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