CN105081752B - Multiaxis automatic displacement displacement tightening machine - Google Patents
Multiaxis automatic displacement displacement tightening machine Download PDFInfo
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- CN105081752B CN105081752B CN201410194019.4A CN201410194019A CN105081752B CN 105081752 B CN105081752 B CN 105081752B CN 201410194019 A CN201410194019 A CN 201410194019A CN 105081752 B CN105081752 B CN 105081752B
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Abstract
A kind of multiaxis automatic displacement displacement tightening machine, for the automatic tightening to the multiple attachment bolts of batch.It is made of rack section, controllable angle slewing equipment, stepless displacement driving device and electric control system.The present invention realizes that the accurate indexing of tightening mechanism interval is turned round, tightening axle grouping in groups is made to tighten attachment bolt according to the number of packet of attachment bolt in groups, guider drive turret automatic rotary move angle；Displacement driving motor is according to the signal of receiving, and different for the reference diameter of different cultivars connection bolt, drive gear rack gearing drives displacement slotted disk to realize electric tightening axle mandrel stepless displacement；Electric tightening axle mandrel tightens connection bolt one by one.The present invention makes equipment that there are multi items to tighten ability in groups, can substantially reduce production cost, and operating efficiency and flexibility are high, can multigroup bolt automatic tightening be realized by automatic indexing indexing, automatic displacement precision is high, and indexing is accurate, significantly reduces hand labor intensity.
Description
Technical field
The present invention relates to machinery manufacturing technology fields, are specifically that one kind is used to twist the multiple attachment bolts of batch automatically
Tight multiaxis automatic displacement displacement tightening machine.
Background technology
With the progress of science and technology, in automobile manufacturing process, there are many new connecting mode, such as consolidation techniques, laser
Welding technique, crimp technology etc. so that the connecting mode of counterpart has multiple choices.But since thread connection has easily
Operation, it is easy-maintaining, assembly precision is high the advantages that, at present automotive axle manufacture in be still it is main assembling connecting mode it
One.In the manufacture of automotive axle assembly, the connection side of bolts and nuts is mostly employed between parts, sub-unit and assembly
Formula.
At present, in the batch production of automotive axle assembly, mainly there are pneumatic impact wrench, gas to the tightening way of bolt and nut
Several classes such as dynamic wrest fixing spanner, electric tightening axle mandrel and electronic wrest fixing spanner.It is fast that pneumatic impact wrench tightens speed, but it tightens essence
Degree only reaches ± 30%, and impact vibration adds the labor intensity of employee, and the noise generated in its operation process is far beyond rule
90 decibels fixed of standard；Pneumatic wrest fixing spanner tightens precision reachable ± 10%, and the noise generated in tightening operation is small, but its
It is slow to tighten speed, the scope of application is small；Electric tightening axle mandrel tightens precision reachable ± 3%, torque wide coverage, torque guarantee energy
Power is reliable, however, it is desirable to be matched with fixing device；Electronic wrest fixing spanner to tighten precision high and reliable, it is but domestic
Change degree is low, and import equipment is expensive, it is few in bolt and nut quantity and need carry out priority control station use compare through
Ji.And current tightening device in groups tightens single varieties, can not realize the demand of multi-item production, production efficiency is low.
At present, the phenomenon that loosening due to bolt and nut, caused vehicle is unable to normally travel, is commonplace.It is how right
The torque that key position and a fairly large number of bolt and nut Quick fastening extremely require, and ensure that these numerous connectors are not lost
The progress of leakage is reliably tightened etc., these must be solved the problems, such as in being manufactured to vehicle bridge, is had to product quality and performances
There is conclusive effect.
The content of the invention
It is of the invention to overcome the shortcomings of that precision caused by existing bolt and nut tightening operation is low, noise is big, efficiency is low
Goal of the invention is to provide a kind of multiaxis automatic displacement displacement tightening machine, realizes automatic adjustable-pitch by using tightening axle, divides automatically
The mode of attachment bolt is tightened in degree positioning with grouping, that is, improves production efficiency, and a machine meets multiple kind connection bolts and tightens
The demand of operation, reduces production cost, has also accurately controlled the screw-down torque of bolt and nut, reliable guarantee product quality and
Performance.
To achieve the above object, the tightening machine of the invention is driven by rack section, controllable angle slewing equipment, stepless displacement
Device and electric control system composition；
The fixing bracket of the rack section is connected with steady rest, and steady rest is connected on slide；
The indexable driving motor with angle control of the controllable angle slewing equipment is fixed on fixed branch by connecting plate
On frame, fixing bracket is connected with guider by bearing, and the driving gear of indexable gear pair is mounted in the rotation of indexable driving motor
In shaft, the driven gear of indexable gear pair is fixedly connected by key with guider, and driving gear is mutually nibbled with driven gear
It closes；Upper rotation rack is fixedly connected with guider, and ball is mounted on fixing bracket, the upper upper surface for rotating rack and ball
Contact, upper rotation rack link into an integrated entity to form turret through stabiliser bar with lower rotation rack；Electric tightening axle mandrel is by connecting branch
Frame is mounted on displacement slide, and connecting bracket can be slided on displacement slide, and displacement slide is fixed in lower rotation rack, electronic
Tightening axle passes through connecting bracket, lower rotation rack and displacement slotted disk；The lower lower surface for rotating rack is equipped with ball, ball and displacement
The upper surface contact of slotted disk；Fixing bracket is assembled in upper rotation rack, lower rotation rack and displacement slotted disk by guider
Together, fixed with clamp nut；Each electric tightening axle mandrel is fixed on by multiple electric tightening axle mandrels through connecting bracket, by lower rotation rack
Defined spatial position forms electric tightening axle mandrel in groups；Indexable driving motor drives guider to rotate by indexable gear pair,
Guider drives turret to rotate, and turret drives electric tightening axle mandrel indexing in groups；
In lower rotation rack, gear thereon becomes the displacement driving motor of the stepless displacement driving device with being mounted in
It is meshed away from the arc-shaped rack on slotted disk, displacement slotted disk is connected with guider by bearing, with sliding slot, electricity on displacement slotted disk
Dynamic tightening axle can be relatively moved with sliding slot；Displacement driving motor drives displacement slotted disk to rotate through gear driving rack, displacement slotted disk
On sliding slot drive electric tightening axle mandrel connecting bracket moved on displacement slide, make each electric tightening of electric tightening axle mandrel in groups
Axis distance between axles displacement.
An arc groove is provided on the fixing bracket, upper rotating machine is rack-mounted to be useful for positive and reverse turn of control turret
The electric switch trigger device of position extreme position, electric switch trigger device are inserted into arc groove, support bracket fastened arc groove
Both ends are equipped with electric-controlled switch, and upper rotation rack driving electrical switch trigger device is turned to below electric-controlled switch, electric switch triggering
Device is triggered, and indexable driving motor stops driving indexing of the turret in this direction.
The guider is scalable locating guide device, is made of fixed guide pole, floating guiding bar, floating guiding
The lower thread of bar and fixed guide pole connects.
The electric tightening axle mandrel in groups, displacement slide, sliding slot for two groups and more than.
Attachment bolt with kind is on identical graduation circle, and the present invention is according to the number of packet of attachment bolt in groups, indexing
Driving motor drives turret to be rotated according to the angle of setting by indexable gear pair through guider, realizes tightening mechanism
The accurate indexing revolution of interval, makes tightening axle grouping in groups tighten attachment bolt；Displacement driving motor according to the signal of receiving, for
The difference of the reference diameter of different cultivars connection bolt, drive gear rack gearing rotate, rack drives displacement slotted disk
The stepless displacement for realizing electric tightening axle mandrel is rotated, it is consistent with bolt reference diameter to meet electric tightening distance between axles；It is electronic to twist
Mandrel loads onto sleeve and connection bolt is tightened one by one.
When the present invention tightens multigroup attachment bolt using multiaxis automatic displacement displacement tightening machine, according to the kind of selection, if
Displacement operation is realized for automatic, manually first group of progress is tightened bolt and is positioned, after first group of attachment bolt of equipment automatic tightening, from
Dynamic grouping indexing is simultaneously automatically performed the tightening operation of other group of attachment bolts such as second, third group, the operation after second group
Cheng Zhong need not be participated in manually, significantly reduced artificial labor intensity, improved operating efficiency.
Compared with prior art, the present invention it has the following advantages：
1st, the present invention realizes stepless displacement function using digital control unit control stepless displacement driving device, has equipment
There is the ability that multi items are tightened in groups, production cost can be substantially reduced, operating efficiency and flexibility are high.
2nd, the automatic tightening of multigroup bolt can be realized by automatic indexing indexing.Compared with manually indexing is tightened one by one
For the equipment of operation, automatic displacement precision of the present invention is high, and indexing is accurate, and substituting manual operation equipment by equipment automatic displacement turns
Position, significantly reduces hand labor intensity.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the controllable angle revolution simplified schematic diagram of Fig. 1.
Fig. 3 is the displacement slotted disk simplified schematic diagram of the stepless displacement driving of Fig. 1.
Fig. 4 is guider structure schematic diagram.
Fig. 5 is the electric control principle schematic diagram of the present invention.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the fixing bracket 3 of rack section of the present invention is connected with steady rest 15, steady rest
15 are connected on slide 18, and all components for realizing tightening machine move up and down function.The feeding of steady rest 15 and rollback can make
With pneumatic element or electronic it is driven.
The indexable driving motor 1 with angle control of controllable angle slewing equipment is fixed on fixing bracket by connecting plate 23
On 3, fixing bracket 3 is connected with guider 14 by bearing, and the driving gear 24 of indexable gear pair 2 is mounted in indexable driving motor
In 1 rotation axis, the driven gear 25 of indexable gear pair 2 is fixedly connected by key with guider 14, driving gear 24 with from
Moving gear 25 is intermeshed；Upper rotation rack 5 is fixedly connected with guider 14, and ball 4 is mounted on fixing bracket 3, upper to turn
The upper surface of motivation frame 5 is contacted with ball 4, and ball 4 plays a part of to stablize and reduce resistance, upper rotation rack 5 and lower rotating machine
Frame 12 links into an integrated entity to form turret through stabiliser bar 16；Electric tightening axle mandrel 7 is mounted on displacement slide 11 by connecting bracket 9
On, connecting bracket 9 can be slided on displacement slide 11, and displacement slide 11 is fixed in lower rotation rack 12, and electric tightening axle mandrel 7 is worn
Cross connecting bracket 9, lower rotation rack 12, displacement slotted disk 27；The lower lower surface for rotating rack 12 is equipped with ball 4, ball 4 and displacement
The upper surface contact of slotted disk 27；Fixing bracket 3 is filled with upper rotation rack 5, lower rotation rack 12 and displacement slotted disk 27 by being oriented to
It puts 14 to fit together, be fixed with clamp nut 21；Multiple electric tightening axle mandrels 7 are incited somebody to action each through connecting bracket 9, by lower rotation rack 12
Electric tightening axle mandrel 7 is fixed on defined spatial position, and electric tightening axle mandrel, electric tightening axle mandrel 7 carry speed reducer 8 to composition in groups.When
When driven gear 25 drives the rotation of guider 14, guider 14 drives to be passed through by upper rotation rack 5 and lower rotation rack 12
The turret that stabiliser bar 16 links into an integrated entity rotates, it is achieved thereby that the whole indexing function of electric tightening axle mandrel in groups.Fixed branch
Be provided with an arc groove on frame 3, it is upper rotate rack 5 be equipped with to control turret positive and reverse indexable extreme position it is electrical
Switch trigger gear 29, electric switch trigger device 29 are inserted into arc groove, and the both ends of the arc groove of fixing bracket 3 are equipped with automatically controlled
Switch 28, upper rotation rack 5 turn to 28 lower section of electric-controlled switch, electric switch trigger device with driving electrical switch trigger device 29
29 are triggered, and indexable driving motor 1 is made to stop driving indexing of the turret in this direction.
The displacement driving motor 10 of stepless displacement driving device is mounted in lower rotation rack 12, and gear 13 thereon is with becoming
It is meshed away from the arc-shaped rack 20 on slotted disk 27, displacement slotted disk 27 is connected with guider 14 by bearing, on displacement slotted disk 27
Rotating rack 12 with sliding slot 26, under the tightening axle of installation displacement slide 11 can surround with being provided with the displacement slotted disk 27 of sliding slot 26
Guider 14 is relatively rotated, and electric tightening axle mandrel 7 can be relatively moved with sliding slot 26.After displacement driving motor 10 is started,
Displacement driving motor 10 drives displacement slotted disk 27 to rotate, and electric tightening axle mandrel 7 and connection are driven by the sliding slot 26 of displacement slotted disk 27
Stent 9 along the circumferential direction outwardly or inwardly moves on displacement slide 11, so as to fulfill the automatic electrodeless displacement of electric tightening axle mandrel 7
Function.
Guider 14 is scalable locating guide device, is made of fixed guide pole 19, floating guiding bar 22, floating is led
It is connected to bar 22 with the lower thread of fixed guide pole 19.Floating guiding bar 22 by the upper and lower turn with fixed guide pole 19,
It realizes the scalable positioning and guiding of guider 14, to adapt to the workpiece of plurality of specifications, is automatically positioned workpiece relative device.
In groups electric tightening axle mandrel, displacement slide 11, sliding slot 26 for two groups and more than.
The electric control system of the present invention includes operation button（Knob）And the devices such as extreme position detection switch, it can be real
Existing multi items selection function realizes automatic adjustable-pitch, automatic indexing revolution according to the kind of selection, is automatically performed bolt in groups and tightens
The functions such as operation.The electric control theory of equipment is as shown in Figure 5 in the present invention：Operator is produced on operation panel electric-controlled box
Product selection, tightening axle torque setting, equipment such as start at the content operations, and the signal of electrical equipment is transmitted on operation panel electric-controlled box
In equipment master control electricity cabinet, the execution signal driving that the control signal received is converted into the equipment such as motor by equipment master control electricity cabinet is set
Signal is fed back to equipment master control electricity cabinet by received shipment row, equipment operation condition such as torque value, indexable angle etc. by detection device
In, equipment master control electricity cabinet is translated into digital signal and feeds back on the display screen of operation panel electric-controlled box, so as to operating personnel
Confirmed.
The operation process of the present invention：
1st, the variety selection knob selection operation kind on electric control system control panel, displacement driving motor 10 are operated
Driving electric tightening axle mandrel 7 realizes automatic adjustable-pitch on displacement slide 11.
2nd, before tightening operation, first the floating guiding bar 22 of guider 14 is inserted into the centre bore of workpiece, then is made electronic
Sleeve in tightening axle 7 starts automatically controlled operation button, tightening machine automatic tightening to positive first group after attachment bolt is tightened simultaneously
First group of connection bolt.
3rd, for the drive of fixing bracket 3 single unit system along 18 rollback certain altitude of slide, indexable driving motor 1 drives indexable gear
Pair 2 drives the turret for rotating rack 5 and lower rotation rack 12 composition to carry out indexing according to different indexing, makes multiple electronic
For sleeve in tightening axle 7 simultaneously to positive second group after attachment bolt is tightened, fixing bracket 3 drives single unit system to run downwards,
Second group of attachment bolt of automatic tightening.
4th, the automatic tightening operation of the 3rd, the 4th group of attachment bolt is realized automatically successively.
Claims (4)
1. a kind of multiaxis automatic displacement displacement tightening machine, it is characterised in that：The tightening machine is by rack section, controllable angle revolution dress
It puts, stepless displacement driving device and electric control system composition；
The fixing bracket of the rack section（3）With steady rest（15）Connection, steady rest（15）It is connected to slide（18）On；
The indexable driving motor with angle control of the controllable angle slewing equipment（1）Pass through connecting plate（23）It is fixed on fixation
Stent（3）On, fixing bracket（3）With guider（14）It is connected by bearing, indexable gear pair（2）Driving gear（24）Dress
In indexable driving motor（1）Rotation axis on, indexable gear pair（2）Driven gear（25）Pass through key and guider（14）Gu
Fixed connection, driving gear（24）With driven gear（25）Intermeshing；Upper rotation rack（5）With guider（14）It is fixed to connect
It connects, ball（4）Mounted on fixing bracket（3）On, upper rotation rack（5）Upper surface and ball（4）Contact, upper rotation rack
（5）With lower rotation rack（12）Through stabiliser bar（16）It links into an integrated entity to form turret；Electric tightening axle mandrel（7）Pass through connecting bracket
（9）Mounted on displacement slide（11）On, connecting bracket（9）It can be in displacement slide（11）Upper slip, displacement slide（11）It is fixed on
Lower rotation rack（12）On, electric tightening axle mandrel（7）Through connecting bracket（9）, lower rotation rack（12）And displacement slotted disk（27）；Under
Rotate rack（12）Lower surface be equipped with ball（4）, ball（4）With displacement slotted disk（27）Upper surface contact；Fixing bracket（3）
With upper rotation rack（5）, lower rotation rack（12）And displacement slotted disk（27）Pass through guider（14）It fits together, with fastening
Nut（21）It is fixed；Multiple electric tightening axle mandrels（7）Through connecting bracket（9）, by lower rotation rack（12）By each electric tightening axle mandrel（7）
Defined spatial position is fixed on, forms electric tightening axle mandrel in groups；Indexable driving motor（1）Pass through indexable gear pair（2）It drives
Guider（14）It rotates, guider（14）Turret is driven to rotate, turret drives electric tightening axle mandrel indexing in groups；
The displacement driving motor of the stepless displacement driving device（10）Mounted in lower rotation rack（12）On, gear thereon（13）
With mounted in displacement slotted disk（27）On arc-shaped rack（20）It is meshed, displacement slotted disk（27）With guider（14）Connected by bearing
It connects, displacement slotted disk（27）It is upper to carry sliding slot（26）, electric tightening axle mandrel（7）With sliding slot（26）It can relatively move；Displacement driving motor
（10）Through gear（13）Drive rack（20）Drive displacement slotted disk（27）It rotates, displacement slotted disk（27）On sliding slot（26）Drive electricity
Dynamic tightening axle（7）Connecting bracket（9）In displacement slide（11）Upper movement makes each electric tightening axle mandrel of electric tightening axle mandrel in groups
（7）Distance between axles displacement.
2. multiaxis automatic displacement displacement tightening machine according to claim 1, it is characterised in that：The fixing bracket（3）On
It is provided with an arc groove, upper rotation rack（5）Equipped with for controlling turret positive and the electrical of reverse indexable extreme position opens
Close trigger device（29）, electric switch trigger device（29）It is inserted into arc groove, fixing bracket（3）The both ends of arc groove be equipped with
Electric-controlled switch（28）, upper rotation rack（5）Band driving electrical switch trigger device（29）Turn to electric-controlled switch（28）Lower section, electrically
Switch trigger gear（29）It is triggered, indexable driving motor（1）Stop driving indexing of the turret in this direction.
3. multiaxis automatic displacement displacement tightening machine according to claim 1, it is characterised in that：The guider（14）For
Scalable locating guide device, by fixed guide pole（19）, floating guiding bar（22）Composition, floating guiding bar（22）It is led with fixation
To bar（19）Lower thread connection.
4. multiaxis automatic displacement displacement tightening machine according to claim 1, it is characterised in that：The electric tightening in groups
Axis, displacement slide（11）, sliding slot（26）For two groups and more than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410194019.4A CN105081752B (en) | 2014-05-09 | 2014-05-09 | Multiaxis automatic displacement displacement tightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410194019.4A CN105081752B (en) | 2014-05-09 | 2014-05-09 | Multiaxis automatic displacement displacement tightening machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105081752A CN105081752A (en) | 2015-11-25 |
| CN105081752B true CN105081752B (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410194019.4A Active CN105081752B (en) | 2014-05-09 | 2014-05-09 | Multiaxis automatic displacement displacement tightening machine |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020504A (en) * | 2016-01-29 | 2017-08-08 | 天津市津耐电器有限公司 | A kind of new screwing device |
| CN108677438B (en) * | 2018-04-06 | 2021-06-15 | 于都县恒新服装有限公司 | Automatic cover opening device for printing and dyeing handling cup |
| CN108971957A (en) * | 2018-08-28 | 2018-12-11 | 安徽航大智能科技有限公司 | A kind of multiple-shaft tightening displacement modified gear |
| CN108858059B (en) * | 2018-08-31 | 2023-12-26 | 苏州托克斯冲压设备有限公司 | Transmission shaft flange fastening device |
| CN110695688A (en) * | 2019-10-25 | 2020-01-17 | 安徽巨一自动化装备有限公司 | High-precision servo flexible pitch-changing mechanism for multi-shaft screwing or multi-head press mounting |
| CN111185868B (en) * | 2020-03-09 | 2023-12-22 | 欧盾科技有限公司 | movable sleeve |
| CN116117499B (en) * | 2023-02-28 | 2024-05-10 | 陕西法士特齿轮有限责任公司 | Automatic tightening and riveting device and method for flange nuts of speed changer |
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| US6196089B1 (en) * | 1999-01-27 | 2001-03-06 | Hyundai Motor Company | Hub nut fastener for mounting wheel |
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| CN105081752A (en) | 2015-11-25 |
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