CN108827129A - A kind of screw thread flatness inspection machine of internal screw workpiece - Google Patents
A kind of screw thread flatness inspection machine of internal screw workpiece Download PDFInfo
- Publication number
- CN108827129A CN108827129A CN201810325253.4A CN201810325253A CN108827129A CN 108827129 A CN108827129 A CN 108827129A CN 201810325253 A CN201810325253 A CN 201810325253A CN 108827129 A CN108827129 A CN 108827129A
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- Prior art keywords
- screw thread
- workpiece
- internal screw
- rack
- belt conveyor
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention relates to detections to examine apparatus field, the screw thread flatness inspection machine of specifically a kind of internal screw workpiece.Including rack, the side of being arranged on the rack internal screw thread inspection body and be arranged on the rack conveying mechanism below the internal screw thread inspection body and for conveying workpiece for measurement one by one towards internal screw thread inspection body；Invention high degree of automation examines accuracy rate high, effectively uses manpower and material resources sparingly, and is capable of the internal screw workpiece flatness inspection of high efficiency completion high-volume same size.
Description
Technical field
The present invention relates to detections to examine apparatus field, the screw thread flatness inspection of specifically a kind of internal screw workpiece
Machine.
Background technique
The production operation performance of the flatness of screw thread and whole set equipment in internal screw workpiece, security performance, service life breath
Manner of breathing closes.If the screw thread flatness in internal screw workpiece not only will affect because of the manufacturing process generation flaws such as burr or tomography
The production capacity of whole set equipment, increases unnecessary machine maintenance, and is easy because of inflammable and explosive material leakage caused by poorly sealed, to production
Enterprise brings great security risk.
Since the screw thread in internal screw workpiece is hidden in inside workpiece, when exfactory inspection, can only lean on inspector to take out in proportion
It looks into, is mainly determined by estimating qualified or not.When yield is larger, the accuracy rate not only examined is low, but also wastes big
The manpower and material resources of amount.
Summary of the invention
The present invention is intended to provide a kind of high degree of automation, examines accuracy rate high, effectively uses manpower and material resources sparingly, it can be efficient
Rate completes the checking machine of the internal screw workpiece flatness inspection of high-volume same size.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of screw thread of internal screw workpiece is smooth
Spend checking machine, including rack, the side of being arranged on the rack internal screw thread inspection body and be arranged on the rack positioned at internal screw thread examine
Test the conveying mechanism below mechanism and for conveying workpiece for measurement one by one towards internal screw thread inspection body；The internal screw thread is examined
Mechanism includes hoistable platform and determines torque spanner, and threaded hole and through-hole are offered on hoistable platform, is coupled in threaded hole
There is the ball-screw being arranged along the vertical direction, the upper end of ball-screw is connected to the output shaft for the servo motor being fixed in rack
On, the traveller being arranged along the vertical direction is fitted in through-hole, the upper end of traveller is fixedly connected on the rack, determines torque spanner
Output end be arranged straight down and be fixedly and coaxially connected with the big end of an external screw thread frustum, determine the upper end and one of torque spanner
The lower end of root lifting shaft is fixedly connected, and the upper end of lifting shaft is slidably threaded through in the axis hole on hoistable platform, lifting shaft and
The cross section of axis hole is corresponding rectangle, and hoistable platform is located on lifting shaft and determines to be arranged with spring between torque spanner,
One end of spring is fixed with hoistable platform, and the other end determines torque spanner upper end and for measuring the pulling force of spring tension with being arranged in
Sensor is fixed；The conveying mechanism includes horizontally disposed belt conveyor, the end of belt conveyor conveying direction
End is located at the underface of the external screw thread frustum, is respectively equipped with baffle, two block baffles in the two sides of belt conveyor conveying direction
Respectively the spacing between one section of belt conveyor conveying direction starting point is twice or more, two pieces of workpiece for measurement width
Baffle respectively the spacing between one section of belt conveyor conveying direction end be twice of workpiece for measurement width hereinafter,
Two sides in the rack positioned at belt conveyor conveying direction end, which are respectively provided with, to be located at immediately below external screw thread frustum
The fixed mold that grips of workpiece for measurement and movable mold half, fixed mold be fixedly connected with rack, movable mold half can pass through
The electric pushrod being fixed on the rack is moved back and forth along the direction towards or away from fixed mold, in fixed mold and activity
The holding tank of corresponding workpiece for measurement exterior contour is respectively equipped on the opposite face of half module.
Preferably, the fixed mold and movable mold half are all made of rubber material production.
Preferably, spacing of two block baffle respectively between one section of belt conveyor conveying direction starting point is
5 times of workpiece for measurement width, two block baffles respectively the spacing between one section of belt conveyor conveying direction end be to
Survey wide 1.2 times of workpiece.
Preferably, the threaded hole and through-hole are separately positioned on the two sides for being located at axis hole on hoistable platform.
Preferably, described to determine to be equipped with lengthening connecting rod between torque spanner and external screw thread frustum.
Beneficial effect
The present invention includes two great institutions of internal screw thread inspection body and conveying mechanism, and internal screw thread inspection body passes through by determining torque spanner
Movement travel of the external screw thread frustum of driving in internal screw workpiece pulls spring to extend, and detects tension sensor centainly
Numerical value.If the screw thread out-of-flatness of internal screw workpiece, there is burr or zone of fracture etc. to influence external screw thread frustum in internal screw thread work
Formation in part, then the elongation of corresponding spring is different, and the numerical value of tension sensor detection is also different.It as a result, can intuitively simultaneously
Accurately judge have which screw thread flatness cannot be up to standard in multiple internal screw workpieces of same batch same size, it cannot
Flow to market.
Conveying mechanism be used for by a large amount of internal screw workpieces of same batch same size towards internal screw thread inspection body one by one
Conveying carries out screw thread flatness inspection for internal screw thread inspection body one by one, and to be measured interior immediately below external screw thread frustum by being located at
Whorl work piece is securely fixed to carry out posture correction, so that hoistable platform is dropping to one by the cooperation of ball-screw and traveller
After determining height, to the screw thread of internal screw workpiece, torque spanner is determined in starting at this time can make outside the toe contact of external screw thread frustum
Screw thread frustum smoothly screws in internal screw workpiece.It is not required to special messenger in checkout procedure to keep an eye on, checkability is high, uses manpower and material resources sparingly.
Detailed description of the invention
Fig. 1 is of the invention do not include fixed mold, movable mold half and electric pushrod structural schematic diagram；
Fig. 2 is the overlooking structure diagram of conveying mechanism part of the invention；
It is marked in figure：1, rack, 2, servo motor, 3, ball-screw, 4, traveller, 5, lifting shaft, 6, spring, 7, hoistable platform,
8, tension sensor, 9, determine torque spanner, 10, lengthen connecting rod, 11, external screw thread frustum, 12, baffle, 13, belt conveyor,
14, fixed mold, 15, movable mold half, 16, electric pushrod.
Specific embodiment
As shown in Figures 1 and 2, the screw thread flatness inspection machine of a kind of internal screw workpiece of the invention, including rack 1, set
It sets the internal screw thread inspection body above rack 1 and is arranged in rack 1 and be located at below internal screw thread inspection body and for inciting somebody to action
The conveying mechanism that workpiece for measurement conveys one by one towards internal screw thread inspection body.
Internal screw thread inspection body passes through by determining the movement of external screw thread frustum 11 that torque spanner 9 drives in internal screw workpiece
Stroke come pull spring 6 extend, so that tension sensor 8 is detected certain numerical value.If the screw thread out-of-flatness of internal screw workpiece,
Formation of the external screw thread frustum 11 in internal screw workpiece is influenced with burr or zone of fracture etc., then the elongation of corresponding spring 6
Difference, the numerical value that tension sensor 8 detects is also different, that is, can determine whether that surveyed internal screw workpiece is rejected product.Conveying mechanism is used
It is conveyed one by one in by a large amount of internal screw workpieces of same batch same size towards internal screw thread inspection body, for internal screw thread checking machine
Structure carries out screw thread flatness inspection one by one, and by the internal screw workpiece to be measured for being located at immediately below external screw thread frustum 11 securely fix with
Posture correction is carried out, so that hoistable platform 7 is after the cooperation of ball-screw 3 and traveller 4 drops to certain altitude, outer spiral shell
For the toe contact of line frustum 11 to the screw thread of internal screw workpiece, torque spanner 9 is determined in starting at this time can make external screw thread frustum 11 suitable
Benefit screws in internal screw workpiece.
Internal screw thread inspection body includes hoistable platform 7 and determines torque spanner 9, is spaced apart on hoistable platform 7 and is equipped with screw thread
Hole and through-hole.The ball-screw 3 being arranged along the vertical direction is fitted in threaded hole, the upper end of ball-screw 3 is connected to solid
Due on the output shaft of the servo motor 2 in rack 1, the traveller 4 being arranged along the vertical direction, traveller 4 are fitted in through-hole
Upper end be fixedly connected in rack 1.Hoistable platform 7 is driven back and forth to be gone up and down by the positive and negative rotation of servo motor 2, so that rising
Drop platform 7 determine after dropping to certain altitude the external screw thread frustum 11 on torque spanner 9 can in internal screw workpiece to be measured
Thread contact, torque spanner 9 is determined in starting can be such that external screw thread frustum 11 screws in internal screw workpiece.
The output end for determining torque spanner 9 is arranged straight down and coaxially fixation connects with the big end of an external screw thread frustum 11
It connects.In the present embodiment, determine to be equipped with lengthening connecting rod 10 between torque spanner 9 and external screw thread frustum 11 to adapt to different depth screw thread
Internal screw workpiece.The upper end for determining torque spanner 9 is fixedly connected with the lower end of a lifting shaft 5, and the upper end of lifting shaft 5 is slidably
It is threaded through in the axis hole on hoistable platform 7.Axis hole is located between the threaded hole and through-hole on hoistable platform 7, lifting shaft 5 and axis
The cross section in hole is corresponding rectangle, is produced relative rotation to avoid between lifting shaft 5 and axis hole.It is located on lifting shaft 5
Hoistable platform 7 and determine to be arranged with spring 6 between torque spanner 9, one end of spring 6 and hoistable platform 7 are fixed, the other end and setting
Tension sensor 8 determining 9 upper end of torque spanner and for measuring 6 pulling force of spring is fixed, and tension sensor 8 can external controller
And alarm, inspector is reminded to incite somebody to action by alarm equipment alarm after the surveyed pulling force of tension sensor 8 small Mr. Yu's default value
Underproof internal screw workpiece is rejected.
Conveying mechanism includes horizontally disposed belt conveyor 13, the end position of 13 conveying direction of belt conveyor
In the underface of external screw thread frustum 11, for the large batch of internal screw workpiece of same specification to be delivered to Thread check mechanism one by one
Position and fixation, for Thread check, mechanism tests.
In order to enable multiple internal screw workpieces to fix in place one by one, the present invention in 13 conveying direction of belt conveyor two
Side is respectively equipped with baffle 12, the respective spacing between one section of 13 conveying direction starting point of belt conveyor of two block baffles 12
It is twice or more of workpiece for measurement width, preferably 5 times, as much as possible on belt conveyor 13 can places in be detected
Whorl work piece.Respectively the spacing between one section of 13 conveying direction end of belt conveyor is workpiece for measurement to two block baffles 12
Hereinafter, preferably 1.2 times, it is more easier to adjust interior spiral shell to be measured under the premise of only holding a workpiece for measurement and passing through twice of width
The posture of line workpiece, the screw thread convenient for being internal screw workpiece to be measured are docked with external screw thread frustum 11.
Two sides in rack 1 positioned at 13 conveying direction end of belt conveyor, which are respectively provided with, will be located at external screw thread cone
The fixed mold 14 and movable mold half 15 that workpiece for measurement immediately below platform 11 grips.Fixed mold 14 and the fixed company of rack 1
It connects, movable mold half 15 can be by the electric pushrod 16 that is fixed in rack 1 along the direction towards or away from fixed mold 14
It moves back and forth, the clamping of corresponding workpiece for measurement exterior contour is respectively equipped on the opposite face of fixed mold 14 and movable mold half 15
Slot.Due to passing through the cooperation of two block baffles 12 and belt conveyor 13, multiple internal screw workpieces to be measured can closely be conveyed, only be needed
Be electric pushrod 16 keep the reciprocating sliding of certain frequency will can accurately be located at one immediately below external screw thread frustum 11 to
Internal screw workpiece is surveyed to clamp and fix.Fixed mold 14 and movable mold half 15 in the present embodiment are all made of rubber material production,
The rotation of internal screw workpiece to be measured itself can be prevented using frictional force after clamping internal screw workpiece to be measured.
In specific implementation process, electric pushrod 16, servo motor 2 and determine torque spanner 9 by controller link, first
Electric pushrod 16 releases movable mold half 15, and internal screw workpiece to be measured is fixed, and then servo motor 2 rotates, and driving lifting is flat
Platform 7 declines, and makes the thread contact of external screw thread frustum 11 Yu internal screw workpiece, and finally starting determines torque spanner 9 and drives external screw thread cone
Platform 11 screws in progress screw thread flatness inspection in internal screw workpiece to be measured.Torque spanner is inverted external screw thread frustum after test ending
11 back-outs, the reversion of servo motor 2 drive hoistable platform 7 to rise, and the withdrawal of electric pushrod 16 tested the release of movable mold half 15
Internal screw workpiece, so that the internal screw workpiece tested enters next test stage under the action of belt conveyor 13.
Claims (5)
1. a kind of screw thread flatness inspection machine of internal screw workpiece, it is characterised in that：Including rack（1）, be arranged in rack（1）On
The internal screw thread inspection body of side and setting are in rack（1）It is upper to be located at below internal screw thread inspection body and be used for workpiece for measurement court
The conveying mechanism that inside Thread check mechanism conveys one by one；The internal screw thread inspection body includes hoistable platform（7）With determine torsion
Spanner（9）, in hoistable platform（7）On offer threaded hole and through-hole, be fitted in threaded hole and be arranged along the vertical direction
Ball-screw（3）, ball-screw（3）Upper end be connected to and be fixed on rack（1）On servo motor（2）Output shaft on, lead to
The traveller being arranged along the vertical direction is fitted in hole（4）, traveller（4）Upper end be fixedly connected on rack（1）On, determine torsion
Spanner（9）Output end be arranged straight down and with an external screw thread frustum（11）Big end be fixedly and coaxially connected, determine torsion and pull
Hand（9）Upper end and a lifting shaft（5）Lower end be fixedly connected, lifting shaft（5）Upper end be slidably threaded through it is flat in lifting
Platform（7）On axis hole in, lifting shaft（5）Cross section with axis hole is corresponding rectangle, in lifting shaft（5）It is upper flat positioned at lifting
Platform（7）With determine torque spanner（9）Between be arranged with spring（6）, spring（6）One end and hoistable platform（7）It is fixed, the other end with
Torque spanner is being determined in setting（9）Upper end simultaneously is used to measure spring（6）The tension sensor of pulling force（8）It is fixed；The conveying mechanism
Including horizontally disposed belt conveyor（13）, belt conveyor（13）The end of conveying direction is located at the external screw thread
Frustum（11）Underface, in belt conveyor（13）The two sides of conveying direction are respectively equipped with baffle（12）, two block baffles（12）
Respectively close to belt conveyor（13）Spacing between one section of conveying direction starting point is twice or more of workpiece for measurement width,
Two block baffles（12）Respectively close to belt conveyor（13）Spacing between one section of conveying direction end is workpiece for measurement width
Twice hereinafter, in the rack（1）It is upper to be located at belt conveyor（13）The two sides of conveying direction end be respectively provided with by
Positioned at external screw thread frustum（11）The fixed mold that the workpiece for measurement of underface grips（14）And movable mold half（15）, fixed half
Mould（14）With rack（1）It is fixedly connected, movable mold half（15）It can be by being fixed at rack（1）On electric pushrod（16）Edge
Towards or away from fixed mold（14）Direction move back and forth, in fixed mold（14）And movable mold half（15）Opposite face on point
The holding tank of workpiece for measurement exterior contour She You not corresponded to.
2. a kind of screw thread flatness inspection machine of internal screw workpiece according to claim 1, it is characterised in that：The fixation
Half module（14）And movable mold half（15）It is all made of rubber material production.
3. a kind of screw thread flatness inspection machine of internal screw workpiece according to claim 1, it is characterised in that：Described two pieces
Baffle（12）Respectively close to belt conveyor（13）Spacing between one section of conveying direction starting point is the 5 of workpiece for measurement width
Times, two block baffles（12）Respectively close to belt conveyor（13）Spacing between one section of conveying direction end is that workpiece for measurement is wide
1.2 times.
4. a kind of screw thread flatness inspection machine of internal screw workpiece according to claim 1, it is characterised in that：The screw thread
Hole and through-hole are separately positioned on hoistable platform（7）The upper two sides positioned at axis hole.
5. a kind of screw thread flatness inspection machine of internal screw workpiece according to claim 1, it is characterised in that：It is described to determine torsion
Torque wrench（9）With external screw thread frustum（11）Between be equipped with lengthen connecting rod（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325253.4A CN108827129B (en) | 2018-04-12 | 2018-04-12 | Thread flatness inspection machine for internal thread workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325253.4A CN108827129B (en) | 2018-04-12 | 2018-04-12 | Thread flatness inspection machine for internal thread workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108827129A true CN108827129A (en) | 2018-11-16 |
| CN108827129B CN108827129B (en) | 2020-02-04 |
Family
ID=64155547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810325253.4A Active CN108827129B (en) | 2018-04-12 | 2018-04-12 | Thread flatness inspection machine for internal thread workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108827129B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358375A (en) * | 2023-03-22 | 2023-06-30 | 浙江群展精密紧固件股份有限公司 | Bolt and internal thread nut matching general screwing equipment |
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| BR102013032473A2 (en) * | 2013-12-17 | 2015-10-13 | Fundação Euclides Da Cunha De Apoio Institucional Uff | post lock assembly |
| CN105300671A (en) * | 2015-09-16 | 2016-02-03 | 北京理工大学 | Precision bolting torque-preload mapping relationship measuring device |
| CN206839560U (en) * | 2017-05-27 | 2018-01-05 | 宋丽 | A kind of tightening machine locking device |
| CN206899106U (en) * | 2017-06-27 | 2018-01-19 | 天津市瑞朗科技有限公司 | A kind of wireless torque spanner control system |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178606A (en) * | 1994-12-27 | 1996-07-12 | Hikari Seiko Kk | Tap female screw hole inspection instrument and inspection device using the instrument |
| CN201540080U (en) * | 2009-10-30 | 2010-08-04 | 秦山第三核电有限公司 | Screw lead difference measuring tool |
| CN201993096U (en) * | 2011-03-23 | 2011-09-28 | 上海沿浦金属制品有限公司 | Thread fully inspection machine by self-gravity |
| CN103411721A (en) * | 2013-07-26 | 2013-11-27 | 太仓中博铁路紧固件有限公司 | Bolt torque detection device |
| CN104516367A (en) * | 2013-09-26 | 2015-04-15 | 南京德朔实业有限公司 | Electric tool and threaded piece fastening degree control method |
| BR102013032473A2 (en) * | 2013-12-17 | 2015-10-13 | Fundação Euclides Da Cunha De Apoio Institucional Uff | post lock assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358375A (en) * | 2023-03-22 | 2023-06-30 | 浙江群展精密紧固件股份有限公司 | Bolt and internal thread nut matching general screwing equipment |
| CN116358375B (en) * | 2023-03-22 | 2023-10-03 | 浙江群展精密紧固件股份有限公司 | Bolt and internal thread nut matching general screwing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108827129B (en) | 2020-02-04 |
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Effective date of registration: 20220302 Address after: 471000 No. 90, Wangcheng Avenue, Luolong District, Luoyang City, Henan Province Patentee after: LUOYANG XINCHENG PRECISION MACHINERY Co.,Ltd. Address before: 471000 Building 1, Yin Kun science and Technology Park, 8 Fenghua Road, hi tech Zone, Luoyang, Henan Patentee before: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY |
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