CN110308057A - A kind of horizontal bolt axial force-torque microvariations testing machine - Google Patents
A kind of horizontal bolt axial force-torque microvariations testing machine Download PDFInfo
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- CN110308057A CN110308057A CN201910648193.4A CN201910648193A CN110308057A CN 110308057 A CN110308057 A CN 110308057A CN 201910648193 A CN201910648193 A CN 201910648193A CN 110308057 A CN110308057 A CN 110308057A
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- axial force
- torsion
- microvariations
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000010009 beating Methods 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/26—Investigating twisting or coiling properties
Abstract
The present invention relates to bolt torsion test fields, specifically a kind of horizontal bolt axial force-torque microvariations testing machine, including axial force sensor, torque sensor, the bolt rod end fixture for sample bolt head screw-in, the bolt torq for twisting sample bolt, it further include disappear torsion-beam and torsional brace, swivel mount is installed in torsional brace, it is furnished with ball bearing and tapered roller bearing between torsional brace and swivel mount, one end of swivel mount towards bolt rod end fixture is connect with bolt torq, and other end is connect with torque sensor.The present invention avoids axis from beating and constrains axle power by torsional brace, ball bearing and tapered roller bearing, sample spiral generated axle power in the state of by torque is avoided to impact torque sensor, the torque that sample bolt is subject to is eliminated by the torsion-beam that disappears simultaneously to be transmitted on axial force sensor, it is final to realize that the bolt axial force influenced in high precision without interaction, torsion measure purpose.
Description
Technical field
The present invention relates to bolt torsion test field, in particular to a kind of horizontal bolt axial force-torque microvariations testing machines.
Background technique
Being mainly used for of bolt provides certain clamping force to two components of fitting, and the clamping force of bolt is mainly exactly
Tension caused by bolt axial deformation and tension stress, i.e. axle power, general axle power size are about the 10% of torque.And in reality
In use process, the relationship between different size, its axle power of the bolt of material and torque be also it is different, need to be surveyed one by one
It is fixed, so that related personnel consults and provides calculation basis.The testing equipment for surveying axle power existing at present, is often surveyed by torque spanner
Determine torque, to realize measurement axle power, the method limitation is larger, and precision is not high, cannot control torque well, furthermore
Interference of the axle power measurement portion due to torque to measuring part, reading error are also larger.
CN208860588U discloses a kind of high-strength bolt tension-torsion testing machine, and the support case of working plate is equipped with including top
Body, working plate upper one end are provided with main gear reducer, and the other end is provided with sliding case, installs on the output shaft of main gear reducer
There is torque sensor, the front end of torque sensor is connected with torque sensor front stall, connects in the front end of torque sensor front stall
There is nut deck set, the front end of nut deck set is provided with nut card, and sliding case is slidably arranged on the guide rail on working plate,
Sliding case is internally provided with force application mechanism, force application mechanism include be successively set on from front to back clamp body inside sliding case,
Fast-assembling stick is helped pull a cart, clamp body and fast-assembling stick help pull a cart between connected by fast-assembling stick, the front end of clamp body is test block clamping end,
The tail portion of sliding case is provided with axial force sensor, and axial force sensor is fixed on the rear wall of sliding case by tie down screw and nut
On, the front end of tie down screw is helped pull a cart with fast-assembling stick to be connect, and the front end of sliding case is provided with nut baffle.
Above-mentioned apparatus torque sensor when measuring bolt directly passes through nut card and applies torsion, and nut to bolt and nut
It will be accompanied with axle power during applying torsion, thus the axle power will bring certain error to the torsion measurement of bolt.In addition,
Axial force sensor is also directly contacted with bolt stud, in extrusion process equally can be with biggish torsion, thus can also give spiral shell
The axle power measurement of bolt brings error.CN201689006U high-strength bolt tension-torsion combined testing machine, CN204405453U one kind are micro-
Machine controls high-intensitive king-bolt torsion testing machine and equally exists the defect.
How to solve above-mentioned technical problem becomes the direction that those skilled in the art make great efforts.
Summary of the invention
Based on problem above, the present invention provides a kind of horizontal bolt axial force-torque microvariations testing machines.The present invention is main
For detecting bolt generated axial force when (non-demolition) torsion under the yield strength by 70% screw thread effective area, with
And bolt torque failure test.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of horizontal bolt axial force-torque microvariations testing machine, including axial force sensor, torque sensor, be used for sample
The bolt rod end fixture of bolt head screw-in, the bolt torq for twisting sample bolt further include the torsion-beam that disappears, axle power sensing
Device is mounted in the one side for the torsion-beam that disappears, and bolt rod end fixture is mounted in the other one side for the torsion-beam that disappears, and the one of bolt rod end fixture
Side is equipped with torsional brace, is equipped with swivel mount in torsional brace, is furnished with ball bearing and taper roller between torsional brace and swivel mount
One end of bearing, swivel mount towards bolt rod end fixture is connect with bolt torq, and other end is connect with torque sensor, is turned round
Square sensor is connect away from one end of swivel mount with torsion driving device.
It as a preferred mode, further include translating device, translating device includes sliding rail, and the torsion-beam that disappears is mounted on slide
On, slide agrees with sliding rail, and sliding rail is equipped with bearing block away from one end of torsional brace, ball screw is installed on bearing block,
Associated ball-screw is combined in ball screw, ball-screw one end is connect by oscillating bearing with axial force sensor.
As a preferred mode, it is also equipped with mobile motor on bearing block, is equipped between mobile motor and ball screw
Transmission device is for driving ball screw to rotate, and mobile motor output shaft is equipped with drive sprocket, and ball screw periphery is equipped with
Driven sprocket, drive sprocket are connect with driven sprocket by chain.
As a preferred mode, drive mode is belt transmission, gear drive, in the sprocket wheel kind of drive
One kind.
As a preferred mode, drive mode is sprocket wheel transmission, and mobile motor output shaft is equipped with master
Movable sprocket, ball screw periphery are equipped with driven sprocket, and drive sprocket is connect with driven sprocket by chain.
As a preferred mode, torsion driving device includes torsion motor, and torsion motor passes through shaft coupling and torque
Sensor connection.
As a preferred mode, bolt torq is to be detachably connected with swivel mount, and bolt torq is equipped with and is used for
With the matched interior six side's grooves of sample bolt head.
As a preferred mode, bolt rod end fixture and the torsion-beam that disappears are to be detachably connected.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention avoids axis from beating and constrains axle power by torsional brace, ball bearing and tapered roller bearing, avoids trying
Sample spiral generated axle power in the state of by torque impacts torque sensor, while eliminating examination by the torsion-beam that disappears
The torque that sample bolt is subject to is transmitted on axial force sensor, and the final bolt axial force for realizing high-precision without interaction influence is turned round
Power measures purpose；
(2) the invention also includes the translating device for being installed on left end of the base, translating device includes sliding rail, and the torsion-beam that disappears is mounted on
On slide, slide agrees with sliding rail, and sliding rail is equipped with bearing block away from one end of torsional brace, is equipped with ball wire on bearing block
Mother, associated ball-screw is combined in ball screw, and ball-screw one end is connected by oscillating bearing and axial force sensor
It connects.By the ball screw being rotatably installed on bearing block, move left and right ball-screw, and the oscillating bearing by connecting,
Axial force sensor pulling disappears torsion-beam and slide slides on the slide rail, and the position for realizing the torsion-beam that disappears is adjusted, convenient for being directed to different length
The sample bolt of degree is tested.The latching characteristics for relying on ball-screw simultaneously can bear horizontal direction power, and then also be axle power
Sensor provides test support；
(3) present invention cooperates translating device that can not only be directed to by dismountable bolt rod end fixture, bolt torq
The sample bolt of different length is tested, and can also be tested for the sample spiral of different model, improve the spirit of device
Activity
(4) present invention is controlled by computer servo, and the degree of automation is higher, as long as setting correlation test data, test
Machine can accurately work.Can real-time display trystate, and draw the Complete Curve, analysis processing test result.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is circuit control principle figure of the invention.
Wherein, 1 pedestal, 2 translating devices, 201 sliding rails, 202 slides, 203 bearing blocks, 204 ball screws, 205 driven chains
Wheel, 206 ball-screws, 207 mobile motors, 208 drive sprockets, 3 oscillating bearings, 4 axial force sensors, 5 disappear torsion-beam, 6 shanks of bolt
Hold fixture, 7 sample bolts, 8 torsional braces, 9 bolt torqs, 10 swivel mounts, 11 torque sensors, 12 shaft couplings, 13 torsions
Motor.
Specific embodiment
The present invention will be further described below with reference to the drawings.Embodiments of the present invention include but is not limited to following reality
Apply example.
Embodiment 1:
Referring to Fig. 1, a kind of horizontal bolt axial force-torque microvariations testing machine mainly includes pedestal 1, and the purpose of pedestal 1 exists
In providing other component installation sites, generally one rectangular platform can also need to be adjusted according to specific installation.And in base
Disappear torsion-beam 5 and torsional brace 8 are installed, the main function for the torsion-beam 5 that disappears is to avoid sample bolt 7 and axial force sensor 4 direct on seat 1
Contact eliminates the torsion by sample bolt 7 and axial force sensor 4, prevents torsion from causing shadow to the detection accuracy of axial force sensor 4
It rings, the torsion-beam 5 that disappears is generally flat member, can obstruct sample bolt 7 and directly contact with axial force sensor 4, in general, being
Simplifying torsion-beam 5 structure of disappearing reduces its difficulty of processing, and the present embodiment torsion-beam 5 that disappears is flat member, axial force sensor 4 and for trying
The bolt rod end fixture 6 that 7 head of sample bolt screws in is respectively arranged in the two sides for the torsion-beam 5 that disappears, and axial force sensor 4 is using common at present
Pressure sensor, it is outer in addition to needing to be fixed on the torsion-beam 5 that disappears, also need to connect with auxiliary equipment, guarantee axial force sensor 4
Both ends receive the axle power of stretching or compression when work.Bolt rod end fixture 6 is mainly provided with internal screw thread, when sample bolt 7 is threaded to bottom
Afterwards, in the torque by hand of spiral, bolt no longer rotates bolt.
Swivel mount 10 is installed in torsional brace 8, is furnished with ball bearing and taper roller axis between torsional brace 8 and swivel mount 10
It holds, not coaxial brought axis bounce when ball bearing is used to constrain due to installation, tapered roller bearing is used to constrain axle power, prevent
Only torque sensor 11 is by axial tension.Swivel mount 10 is a Cylinder shape constructional element, and periphery connects with ball bearing and tapered roller bearing
Touching, inner circumferential with set keyway and connect respectively with bolt torq 9 and torque sensor 11, be worth noting yes, be keyed mode only
The connection type of the swivel mount 10 and bolt torq 9 and torque sensor 11 that are used for this implementation, connection side in addition to this
Formula can also even be welded using the connection of rear pin, threaded connection, in order to guarantee connection specification, especially between axis and axis
Connection, the present embodiment connection type using key connection.Torque sensor 11 is finally connect with torsion driving device for providing
Power is tested, torsion driving device can be by the way of motor or manual rotation.
Test process: test bolt right end head is caught in bolt torq 9, left end head screws in bolt rod end fixture 6
Internal screw thread at, then by torsion driving device drive torque sensor 11 rotate, start carry out test process.Specifically making
Torsion is first passed to torsional brace 8 by used time, torque sensor 11, and torsional brace 8 twists sample spiral shell by bolt torq 9 again
Bolt 7, it is final test bolt left end head and be connected through a screw thread pulling disappear torsion-beam 5, thus in the axial force sensor of 5 left end of torsion-beam that disappears
4 both ends are stretched, and finally measure bolt axial force.The present embodiment avoids axis by torsional brace 8, ball bearing and tapered roller bearing
It beats and constrains axle power, sample spiral generated axle power in the state of by torque is avoided to cause shadow to torque sensor 11
It rings, while the torque that sample bolt 7 is subject to is eliminated by the torsion-beam 5 that disappears and is transmitted on axial force sensor 4, it is final to realize high-precision nothing
Interact the bolt axial force influenced, torsion measurement purpose.
Further, it is tested for the ease of the sample bolt 7 for different length, the present embodiment further includes being installed on
The translating device 2 of 1 left end of pedestal, translating device 2 include sliding rail 201, and the torsion-beam 5 that disappears is mounted on slide 202, slide 202 and cunning
Rail 201 agrees with, and sliding rail 201 is equipped with bearing block 203 away from one end of torsional brace 8, is equipped with ball screw on bearing block 203
204, associated ball-screw 206 is combined in ball screw 204,206 one end of ball-screw passes through oscillating bearing 3 and axis
Force snesor 4 connects.By the ball screw 204 being rotatably installed on bearing block 203, move left and right ball-screw 206, and
Oscillating bearing 3 by connection, the pulling of axial force sensor 4 disappear torsion-beam 5 and slide 202 slides on sliding rail 201, realize the torsion that disappears
The position of beam 5 is adjusted, and is tested convenient for the sample bolt 7 for different length.The self-locking spy of ball-screw 206 is relied on simultaneously
Property, horizontal direction power can be born, and then also provide test support for axial force sensor 4.
Further, it improves and is rotated convenient for driving ball screw 204, be also equipped with mobile motor 207 on bearing block 203,
Transmission device is equipped between mobile motor 207 and ball screw 204 for driving the rotation of ball screw 204, drive side
Formula can choose belt transmission, gear drive or the sprocket wheel kind of drive, this implementation drive mode is sprocket wheel transmission, tool
Body is to be equipped with drive sprocket 208 in 207 output shaft of mobile motor, and 204 periphery of ball screw is equipped with driven sprocket 205, main
Movable sprocket 208 is connect with driven sprocket 205 by chain.
Further, for the ease of providing torque for torque sensor 11, torsion driving device includes torsion motor 13, is turned round
Rotating motor 13 is connect by shaft coupling 12 with torque sensor 11.
Further, it is tested for the ease of the bolt for different model, bolt torq 9 is with swivel mount 10 can
Dismantling connection, bolt rod end fixture 6 are to be detachably connected with the torsion-beam 5 that disappears, and specific the present embodiment, which is detachably connected, selects bolt to connect
It connects, it is also an option that other such as pins or key connection detachable connection method, this outer bolt torq 9, which is equipped with, to be used for and sample
7 head of bolt matches groove, and groove structure can be adjusted according to bolt head shape, the present embodiment bolt torq 9
The groove in portion is interior six sides groove.Translating device 2 is cooperated not only may be used by dismountable bolt rod end fixture 6, bolt torq 9
It is tested with the sample bolt 7 for different length, can also be tested for the sample spiral of different model, improve dress
The flexibility set.
The present embodiment circuit control principle is as shown in Fig. 2, mainly include computer, A/D and D/A change-over panel and servo
Control cabinet.Computer is communicated by A/D and D/A change-over panel with SERVO CONTROL cabinet.Servo-control system effect is will to come from torque
The signal of sensor 11 amplifies filtering by amplifier, and after be sent to microcomputer through A/D plate (in microcomputer) and axial control
The closed loop of device, the quantization display and controller of completing microcomputer compares.
Servo control system uses torque value control mode.Controlled by nonshared control unit, the part be by
Sensor signal from twist amplifier plate compares with corresponding Setting signal row, and after carrying out PID control, goes to drive
Dynamic servo motor presses instruction works.Force snesor acquires axle power data, transfers data to computer, and show.Computer will
Data after the completion of test are handled through row, are printed test report by printer, are finally completed test process.
It as above is the embodiment of the present invention.Design parameter in above-described embodiment and embodiment is merely to understand table
State the invention verification process of inventor, the scope of patent protection being not intended to limit the invention, scope of patent protection of the invention
Still it is subject to the claims, it is all to change with equivalent structure made by specification and accompanying drawing content of the invention, together
Reason should be included within the scope of the present invention.
Claims (8)
1. a kind of horizontal bolt axial force-torque microvariations testing machine, including axial force sensor (4), torque sensor (11), it is used for
The bolt rod end fixture (6) of sample bolt (7) head screw-in, the bolt torq (9) for twisting sample bolt (7), it is special
Sign is: further including disappear torsion-beam (5), the axial force sensor (4) is mounted in the one side of the torsion-beam that disappears (5), the bolt rod end
Fixture (6) is mounted in the other one side of the torsion-beam that disappears (5), and the side of the bolt rod end fixture (6) is equipped with torsional brace (8),
It is equipped with swivel mount (10) in the torsional brace (8), is furnished with ball bearing and circle between the torsional brace (8) and swivel mount (10)
One end of taper roller bearing, the swivel mount (10) towards bolt rod end fixture (6) is connect with bolt torq (9), and in addition one
End is connect with torque sensor (11), and the torque sensor (11) connects away from the one end of swivel mount (10) and torsion driving device
It connects.
2. a kind of horizontal bolt axial force-torque microvariations testing machine according to claim 1, it is characterised in that: further include
Translating device (2), the translating device (2) include sliding rail (201), and the torsion-beam that disappears (5) is mounted on slide (202), described
Slide (202) agrees with sliding rail (201), and the sliding rail (201) is equipped with bearing block (203) away from the one end of torsional brace (8),
It is equipped with ball screw (204) on the bearing block (203), is combined with associated ball in the ball screw (204)
Lead screw (206), described ball-screw (206) one end are connect by oscillating bearing (3) with axial force sensor (4).
3. a kind of horizontal bolt axial force-torque microvariations testing machine according to claim 2, it is characterised in that: the axis
It holds and is also equipped with mobile motor (207) on seat (203), transmission dress is equipped between the mobile motor (207) and ball screw (204)
It sets for driving ball screw (204) to rotate.
4. a kind of horizontal bolt axial force-torque microvariations testing machine according to claim 3, it is characterised in that: the biography
The dynamic device kind of drive is one of belt transmission, gear drive, the sprocket wheel kind of drive.
5. a kind of horizontal bolt axial force-torque microvariations testing machine according to claim 4, it is characterised in that: the biography
The dynamic device kind of drive is sprocket wheel transmission, and mobile motor (207) output shaft is equipped with drive sprocket (208), the ball
Screw (204) periphery is equipped with driven sprocket (205), and the drive sprocket (208) and driven sprocket (205) are connected by chain
It connects.
6. a kind of described in any item horizontal bolt axial force-torque microvariations testing machines, feature exist according to claim 1~5
In: the torsion driving device includes torsion motor (13), and the torsion motor (13) passes through shaft coupling (12) and torque sensing
Device (11) connection.
7. a kind of described in any item horizontal bolt axial force-torque microvariations testing machines, feature exist according to claim 1~5
It with swivel mount (10) is to be detachably connected in: the bolt torq (9), the bolt torq (9), which is equipped with, to be used for and sample
Six side's grooves in bolt (7) head is matched.
8. a kind of described in any item horizontal bolt axial force-torque microvariations testing machines, feature exist according to claim 1~5
In: the bolt rod end fixture (6) is to be detachably connected with the torsion-beam that disappears (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648193.4A CN110308057A (en) | 2019-07-18 | 2019-07-18 | A kind of horizontal bolt axial force-torque microvariations testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648193.4A CN110308057A (en) | 2019-07-18 | 2019-07-18 | A kind of horizontal bolt axial force-torque microvariations testing machine |
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| CN110308057A true CN110308057A (en) | 2019-10-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910648193.4A Pending CN110308057A (en) | 2019-07-18 | 2019-07-18 | A kind of horizontal bolt axial force-torque microvariations testing machine |
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Cited By (3)
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| CN112611630A (en) * | 2020-12-09 | 2021-04-06 | 广东博智林机器人有限公司 | Torsional rigidity measuring equipment |
| CN113108978A (en) * | 2021-04-26 | 2021-07-13 | 上海长肯试验设备有限公司 | Industrial bolt torque testing machine |
| CN113251886A (en) * | 2021-04-21 | 2021-08-13 | 淮南师范学院 | Control motor test equipment |
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