CN207873376U - A kind of detection bolt screw-in mechanism - Google Patents
A kind of detection bolt screw-in mechanism Download PDFInfo
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- CN207873376U CN207873376U CN201721613474.9U CN201721613474U CN207873376U CN 207873376 U CN207873376 U CN 207873376U CN 201721613474 U CN201721613474 U CN 201721613474U CN 207873376 U CN207873376 U CN 207873376U
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- detection
- bolt
- fixed seat
- detection bolt
- end cover
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
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Abstract
The utility model discloses a kind of detection bolts to screw in mechanism, including mechanism fixed seat, the driving mechanism above the mechanism fixed seat and the detection bolt driven by the driving mechanism, and the driving mechanism adjusts height by guide rail cylinder；It is provided with transmission rod above the detection bolt, spot welding intensity detection mechanism includes fixing support rack, leading screw guidance set is provided on the fixing support rack, the leading screw guidance set is driven by servo motor, the leading screw guidance set is connected with sensor fixed seat, pressure sensor is arranged in the lower section of the sensor fixed seat, and the press rods contacted with the transmission rod are arranged in the lower section of the pressure sensor.Detection bolt provided by the utility model screws in mechanism, the elastomeric check that can be screwed in by bolt, the automatic weld strength detection for realizing project-welding nut, securely and reliably, easy to use.
Description
Technical field
The utility model is related to a kind of testing agencies, it particularly relates to which a kind of detection bolt screws in mechanism.
Background technology
Project-welding nut is mainly used for the stamping parts of welding low-carbon steel and low-alloy steel.In parts industry, projection welding
Connecting mode has the advantages that many：Multiple solder joints can be welded simultaneously in a weld cycle.Not only productivity is high, but also does not have
Shunt influence.Therefore can be arranged on narrow position solder joint without receptor site away from limitation.Since current density combines in salient point, electricity
Current density is big, therefore smaller electric current can be used to be welded, and can be reliably formed smaller nugget.In spot welding, corresponding Mr. Yu
One plate thickness, the nugget that formed less than a certain size is highly difficult.The position of salient point is accurate, size is consistent, the intensity of each point
It is relatively uniform.Therefore spot welding can be less than for given intensity, the size of projection welding spot.Due to using big plane electrode, and
Salient point is arranged on an object, so can mitigate the impression on another workpiece exposed surface to the maximum extent.Big plane simultaneously
The current density of electrode is small, good heat dissipation, and the abrasion of electrode is more much smaller than spot welding, thus greatly reduces maintenance and the dimension of electrode
Repair expense.Compared with spot welding, the influence of the oil, rust, oxide skin, coating and other coatings of workpiece surface to projection welding is smaller, but dry
Net surface remains to obtain relatively stable quality.Since projection welding there are above-mentioned a variety of advantages, thus obtain a very wide range of application.But
It is there are one apparent disadvantage, and in the welding process, high-tension current when pressurization by and will produce spot welding welding slag for project-welding nut
Splashing, these welding slags have a ten thousandth probability it is viscous pay onto the screw thread of nut, cause bolt that can not be screwed into；And point
In weldering production, because intensity is insufficient when the factors such as air pressure and electric current also will appear spot welding, project-welding nut rosin joint and dry joint cause to produce
The abnormal defect that nut falls off when product assemble.
As shown in Figure 1, for the inspection of project-welding nut and the welding slag on nuts and intensity of metal plate point postwelding used by the prior art
Survey mode, the detection operation mainly by manual operation, including：Product 1 ', thread measurement go-no go gauge 2 ' and spot welding intensity detection block
3’；Operator's hand holds product 1 ' when welding slag detects, and is screwed into project-welding nut screw thread with thread measurement go-no go gauge 2 ', screws in screw thread
3-5 circle detections, without welding slag if it can be screwed into product, otherwise there is welding slag；Operator examines spot welding intensity when spot welding intensity detection
Survey block 3 ' be screwed into product 1 ' and fasten it is motionless, be integrally put into universal strength tester carry out spot welding strength failure test,
Judge whether spot welding intensity is qualified by calculating average value.But both methods is required for manual operation, and the product is
Large quantities of mass productions operate relatively complicated, operator's labor one by one during full inspection to screw thread welding slag and the realization of spot welding intensity
Fatigue resistance is big, is affected by artificial subjective factor, and structural stability is poor；Moreover, when being threaded into go-no go gauge, beat is acted
Time can not shorten, and cause whole production efficiency more relatively low.
In order to realize project-welding nut automatic detection, it is necessary to provide a kind of detection bolt screw-in mechanism, there is elasticity inspection
Survey and weld strength detection function, to realize the automatic detection of project-welding nut automatically.
Utility model content
The technical problem to be solved by the utility model is in view of the deficienciess of the prior art, provide a kind of inspection
It surveys bolt and screws in mechanism, the elastomeric check that can be screwed in by bolt, the automatic weld strength detection for realizing project-welding nut, safety
Reliably, easy to use.
The utility model is to solve above-mentioned technical problem and the technical solution adopted is that provide a kind of detection bolt screw-on machine
Structure, including mechanism fixed seat, the driving mechanism above the mechanism fixed seat and driven by the driving mechanism
Bolt is detected, the driving mechanism adjusts height by guide rail cylinder；It is provided with transmission rod above the detection bolt, it is described
Spot welding intensity detection mechanism includes fixing support rack, and leading screw guidance set is provided on the fixing support rack, and the leading screw is led
It is driven to component by servo motor, the leading screw guidance set is connected with sensor fixed seat, the sensor fixed seat
Pressure sensor is arranged in lower section, and the press rods contacted with the transmission rod are arranged in the lower section of the pressure sensor.
Above-mentioned detection bolt screws in mechanism, wherein it further includes main shaft that the detection bolt, which screws in mechanism, the main shaft tool
There are hollow cavity, the both ends of the main shaft that upper end cover and bottom end cover is respectively set, the detection bolt is stretched by the bottom end cover
Go out, is provided between detection bolt and the bottom end cover for applying the first of upward elastic force to the detection bolt
Spring is provided between the detection bolt and the upper end cover for applying the of downward elastic force to the detection bolt
Two springs, the transmission rod by the upper end cover penetrate the cavity and with the detection threaded bolt contacts.
The utility model comparison prior art has following advantageous effect：Detection bolt screw-on machine provided by the utility model
Structure is screwed in axis and spot welding intensity detection mechanism by the way that bolt is arranged, is coordinated using transmission rod and pressure sensor, realized automatically convex
The weld strength detection of nut is welded, it is securely and reliably, easy to use；The mode to compare with artificial detection, operation are more laborsaving, just
Victory improves measurement accuracy and accuracy, greatly reduces production cost, and improve working efficiency.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is project-welding nut assay device structures schematic diagram used by the prior art；
Fig. 2 is to detect the project-welding nut automatic detection system structural representation that bolt screws in mechanism using the utility model
Figure；
Fig. 3 is that the detection bolt of the utility model embodiment screws in the structural schematic diagram of mechanism；
Fig. 4 is that bolt screws in axle construction schematic diagram in the utility model embodiment；
Fig. 5 is spot welding intensity detection mechanism structure schematic diagram in the utility model embodiment.
Specific implementation mode
In order to make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached
The utility model is further described in figure.
As shown in Fig. 2, the project-welding nut automatic detection system for screwing in mechanism using the utility model detection bolt includes
Organic frame 1, reference seat 2, slide way mechanism 3, snap-gauge elevating mechanism 4, snap-gauge translation mechanism 5, feeding pressure mechanism 6, detection bolt screw in
Mechanism 7, spot welding intensity detection mechanism 8, discharging mechanism 9 and man-machine interface 10；Wherein the equipment rack 1 supports placement as a whole
In mill floor, remaining Ji Zu mechanisms whole positioning and locking is in reference seat 2.
Shown in Figure 3, detection bolt screws in mechanism and screws in axis 703, inspection by transmission rod 701, V-type V belt translation 702, bolt
Bolt 704, gear motor 705, guide rail cylinder 706 and mechanism fixed seat 707 is surveyed to form.Transmission rod 701 adds up to steel using hard
Turnery processing forms, and mainly plays intermal force, i.e., when detecting bolt 704 in the case where bolt screws in the effect of axis 703, screws in projection welding spiral shell
It is female in place after, spot welding intensity detection mechanism action is in lower pressure to transmission rod 701；V-type V belt translation 702 is chosen from standardization machine
Tool accessory is that the rotary force of gear motor 705 is transmitted to bolt and is screwed on axis 703 for transmitting rotary force；Bolt screws in axis
703 have turnery processing to go out outer circle using hard alloy steel, then go out hexagon by linear cutter, to enable detection bolt 704
It blocks and rotates together with；704 selection standard fastener of bolt is detected, high grade requirement, 12.9 grades of outer-hexagonal M6 bolts should
Bolt strength is high, wear-resistant, can be suitably used for batch and uses, detection result is good；Gear motor 705 is selected electrically matches from standardization
Part, output torque is big, and has the function of speed governing；Guide rail cylinder 706 is chosen from standardized pneumatic accessory, for doing testing agency
Lifting action, detection bolt is imported into projection welding bolt；Mechanism fixed seat 707 is by steel part screw and positioning pin combination locking
It forms, is used for the entire mechanism of component.
In the mechanism, characteristic innovative point is in this widgets of bolt screw-in axis 703, and the project-welding nut on product
According to screw characteristic, there are chamfering, effect to be easy for being threaded into screwing in head end, because detecting the action of bolt rotating mechanism 7
There are rise and fall, is currently to avoid the shift action of product, is to rise before product immigration, when product is moved to
After detecting fine positioning, which can just decline, and kinetic energy be will produce in lowering action, detection bolt can be with the project-welding nut of product
Collision is generated, causes nut to generate damage, influences entire detection operation, knotty problem is easily generated in manual operations, very
It is unstable；And the innovation mode of the widgets perfectly solves the problem, the widgets structure referring to Fig. 4, the widgets by
Main shaft 7031, long cylinder compressed spring 7032, axis clamp spring 7033, upper end cover 7034, bottom end cover 7035 and short cylindrical compress bullet
Spring 7036 forms, which has turning and linear cutter, has the characteristics that outer circle and interior hexagonal, outer circle numerically controlled lathe add
Work is used for accessory deep groove ball bearing endoporus, and to ensure to rotate around the center of circle, interior hexagonal is formed by linear cutter, for blocking inspection
The outer-hexagonal for surveying bolt 704 makes rotary force pass to detection bolt 704, which is process there are two types of technique, and high-precision adds
Work ensure that outer circle center and interior hexagonal central coaxial, keep entire mechanism action accurate and reliable；Long cylinder compressed spring 7032 is used
The detection flexible lower pressure of bolt 704 is kept, is detection bolt 704 when being in contact with the guide angle of both project-welding nut screw threads
Will not be open-top, and the elastic force of the spring is smaller, is unlikely to that nut thread is made to generate damage；Axis clamp spring 7033 is standard
Part is used for axial restraint deep groove ball bearing；Upper end cover 7034 is formed with bottom end cover 7035 using turnery processing, is respectively intended to fix
Bolt 704 is detected with guide support；Short spring 7036 is used for supporting detection bolt 704, it is made to keep vacant state, convenient for rotation
It is screwed into.
Shown in Figure 5, spot welding intensity detection mechanism is by spoke type pressure sensor 801, sensor fixed seat 802, essence
Close leading screw guidance set 803, safty shield 804, servo motor 805 and fixing support rack 806 form.Pressure sensor 801
Transmission rod be connected through a screw thread right angle setting and (be rigidly connected) on a sensor.Wherein spoke type pressure sensor is selected from mark
The automatically controlled accessory of standardization, measure pressure limit 0-1T, be suitable for the spot welding nut weld strength detect, and detect force value precision compared with
It is high；Sensor fixed seat 802 is welded by steel material group, for sensor and other moving parts of being connected and fixed, is integrated with processing
Center mills out, and ensure that installation accuracy and geometric tolerance；Precision lead screw guidance set 803 has precision lead screw to be combined with linear slide rail
It forms, the precision drive of lead screw makes pressure sensor 801 realize that rise and fall, linear slide rail ensure that lifting by control requirement
During direction it is always consistent；Safty shield 804 is formed by metal plate bending, inside have high speed rotation transmission, rise
Protective effect prevents operative employee's hand from stretching into generation injury；Servo motor 805 is selected from standardization electric fittings, rotation hand system
System control, precision is higher, can control it to rotate to any angle, the power of rise and fall is provided for the mechanism；Fixed support
Mechanism 806 has steel material to be composed, and whole linear cutter goes out, and ensure that installation accuracy and deformation tolerance, makes each portion of the mechanism
Part is installed on it.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (2)
1. a kind of detection bolt screws in mechanism, which is characterized in that including spot welding intensity detection mechanism, mechanism fixed seat, be located at institute
The detection bolt stated the driving mechanism above mechanism fixed seat and driven by the driving mechanism, the driving mechanism pass through
Guide rail cylinder adjusts height；Transmission rod is provided with above the detection bolt, spot welding intensity detection mechanism includes fixing
Supporting rack is provided with leading screw guidance set on the fixing support rack, and the leading screw guidance set is driven by servo motor, institute
It states leading screw guidance set and is connected with sensor fixed seat, pressure sensor, the pressure is arranged in the lower section of the sensor fixed seat
The press rods contacted with the transmission rod are arranged in the lower section of force snesor.
2. detection bolt according to claim 1 screws in mechanism, which is characterized in that the detection bolt screws in mechanism and also wraps
Main shaft is included, the main shaft has hollow cavity, and upper end cover and bottom end cover, the detection spiral shell is respectively set in the both ends of the main shaft
Bolt is stretched out by the bottom end cover, be provided between the detection bolt and the bottom end cover for the detection bolt apply to
On elastic force the first spring, be provided between the detection bolt and the upper end cover for the detection bolt apply
The second spring of downward elastic force, the transmission rod are penetrated the cavity by the upper end cover and are connect with the detection bolt
It touches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613474.9U CN207873376U (en) | 2017-11-28 | 2017-11-28 | A kind of detection bolt screw-in mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613474.9U CN207873376U (en) | 2017-11-28 | 2017-11-28 | A kind of detection bolt screw-in mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207873376U true CN207873376U (en) | 2018-09-18 |
Family
ID=63501205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721613474.9U Active CN207873376U (en) | 2017-11-28 | 2017-11-28 | A kind of detection bolt screw-in mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207873376U (en) |
-
2017
- 2017-11-28 CN CN201721613474.9U patent/CN207873376U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210526 Address after: 315100 Yuanjia village, Panhuo street, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Wison Automotive Technology (Ningbo) Co.,Ltd. Address before: 315104 Yuanjia village, Panhuo street, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: ZHEJIANG YIJIE AUTO PARTS Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240228 Address after: No. 4 Guihua Fourth Road, Meijiao Qi Industrial Community, Xiaotang Township, Xiangshan County, Ningbo City, Zhejiang Province, 315191 Patentee after: Huiyi New Energy Technology (Ningbo) Co.,Ltd. Country or region after: China Address before: 315100 Yuan Jia Village, Pan Huo Street, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Wison Automotive Technology (Ningbo) Co.,Ltd. Country or region before: China |
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