CN109676414A - Automatic capturing positioning device - Google Patents
Automatic capturing positioning device Download PDFInfo
- Publication number
- CN109676414A CN109676414A CN201910084170.5A CN201910084170A CN109676414A CN 109676414 A CN109676414 A CN 109676414A CN 201910084170 A CN201910084170 A CN 201910084170A CN 109676414 A CN109676414 A CN 109676414A
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- China
- Prior art keywords
- positioning device
- platen
- drive disk
- correcting
- automatic capturing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The present invention provides a kind of automatic capturing positioning device, and which solve the positioning device of existing wheel hub and rotary type workpiece with hole processing installation difficulty height, transmission accuracy is low, stability is poor and technical problem poor for applicability；Including platen, driving device, transmission device and means for correcting, transmission device passes through in the middle part of platen, transmission device lower end is connect with driving device gear, and one end connection of transmission device upper end and means for correcting, the other end of means for correcting is used to contact positioning with workpiece hole side wall；The bottom of means for correcting is connect with platen；The drive disk that transmission device includes gear drive rod, is set on gear drive rod, is uniformly distributed that there are three driver slots on drive disk, and one end of driver slot is close to the drive disk center of circle, and the other end of driver slot is far from the drive disk center of circle.The present invention is widely used in workpiece with hole positioning device field.
Description
Technical field
The present invention relates to a kind of positioning devices, look for more particularly to a kind of wheel hub and the automatic of rotary type workpiece with hole
Positive positioning device.
Background technique
The positioning of wheel hub and rotary type workpiece is basic by the way of fuse positioning center hole or workpiece inner sidewall, but
It is that the hole of workpiece and inner sidewall have certain tolerance.If the tolerance in hole is 100 ± 0.05mm of ￠, the then size of positioning core
Maximum should be ￠ 100-0.05=99.95mm, if ￠ 100+0.05mm is accomplished in hole, the unilateral gap of positioning core and hole at this time
It is up to 0.05mm, will cause certain position error, and then influence the precision of Workpiece boring equidimension.Besides using fixation
The mode of fuse positioning, since the fit clearance in fuse and hole is small, so disassembly workpiece is also inconvenient.
Application No. is 201811020629.7 Chinese patent applications to disclose a kind of processing of automobile hub cover with automatic fixed
Position fixture can be automatically positioned wheel hub cover when wheel hub cover is fixed, and save subsequent positioning operation, improve work
Make efficiency, improves use reliability；And the fixed effect to wheel hub cover is improved, the edge of wheel hub cover will not be damaged,
Improve practicability；Including workbench, left supported plate, right supported plate, placement plate, positive triangle supporting table, three groups of screwed pipes, three groups of screw threads
Bar, three groups of mounting plates and shaft further include three groups of driven taper cone pulleies, three group of first ball bearing, the second ball bearing, third rolling
Pearl bearing and driving cone pulley, three groups of driven taper cone pulleies are engaged with driving cone pulley, and three groups of mounting plate tops are far from positive triangle
One end of supporting table is fixedly welded with curved splint, and the concave surface of three groups of curved splints is towards positive triangle supporting table, and three
Rubber slab is provided on the concave surface of group curved splint.
But there are still following disadvantages for the automatic positioning clamp:
1, it is driven using driving cone pulley and driven taper cone pulley, in order to guarantee the precision of transmission, driving wheel and driven wheel
The two pitch circle vertex of a cones must be overlapped and the angle between 3 driven taper cone pulley axis and driving cone pulley axis must it is identical,
It the accuracy of manufacture and installs difficult very big；
2,1 driving cone pulley drives 3 driven taper cone pulleies, and load is larger, and 3 driven taper cone pulleies are mounted on screwed pipe
On, although screwed pipe one end is located on gusseted platform by bearing, the other end is threadedly attached on threaded rod, spiral shell
The rasp bar other end hingedly on a mounting board, and produces relative rotation between screwed pipe and threaded rod by screw thread, is easy to appear size
Position wild effect；
3, screw thread drives mounting plate and curved splint movement to position workpiece, and screw-driven gap itself is big and easy to wear,
It is easy to appear 3 mounting plate Asynchronies when screw thread forward and reverse rotation, is not suitable for being accurately positioned；
4, lack limiting slot between mounting plate and workbench, although automatic positioning can be realized, the not installation of limiting slot
The plate direction of motion is not fixed, and the power lateral relative to thread spindle, shadow are easy to produce in mounting plate and curved splint motion process
Ring fixture stability；
5, positioning uses curved splint, the arc of curved splint once it is determined that, size that workpiece outer diameter is justified can be clamped just
Determine, if the workpiece for having changed other diameters carrys out clamping, just will appear curved splint circular arc coincide with side surface of workpiece circular arc it is bad
The case where, positioning accuracy is seriously affected, can not achieve the clamping of multiple diameter workpiece.
Summary of the invention
The present invention high, transmission accuracy for the positioning device of existing wheel hub and rotary type workpiece processing installation difficulty
Technical problem low, stability is poor and poor for applicability, provide a kind of low processing installation difficulty, high transmission accuracy, stability it is good and
The good automatic capturing positioning device of applicability.
For this purpose, the technical scheme is that, including platen, driving device, transmission device and means for correcting, transmission device
In the middle part of platen, transmission device lower end is connect with driving device gear, one end connection of transmission device upper end and means for correcting,
The other end of means for correcting is used to contact positioning with workpiece hole side wall；The bottom of means for correcting is connect with platen；
The drive disk that transmission device includes gear drive rod, is set on gear drive rod is evenly distributed on drive disk
Three driver slots, one end of driver slot is close to the drive disk center of circle, and the other end of driver slot is far from the drive disk center of circle.
Preferably, means for correcting includes corpus unguis, the correction pawl pedestal connecting with corpus unguis basal sliding；One end of corpus unguis is upward
Equipped with connecting rod, connecting rod is equipped with small bearing, small bearing and driver slot clearance fit；School is connected with above the other end of corpus unguis
Positive pawl.
Preferably, correction pawl base length direction is equipped with T-slot, and corpus unguis bottom is equipped with the convex block matched with T-slot.
Preferably, correction pawl is equipped with the small arcwall face outwardly protruded far from the side of connecting rod, and small arcwall face is used for and work
Part hole side wall point contact.
Preferably, it there are three means for correctings, and is evenly distributed on platen centered on gear drive rod.
Preferably, it is also connected on platen there are three support device, three support devices are located at below drive disk, and uniformly divide
Cloth is between three means for correctings；Support device top is equipped with support base ball free to rotate, and three support base balls are most
High point is consistent.
Preferably, support device includes support base, support rod, support base ball and clamping screw, and support rod is located at support
In the groove of seat, and spring is equipped between bottom portion of groove；Support base ball it is free to rotate be located at supporting bar top；Locking
Bolt is located on support base side wall, is used for locking support bar.
Preferably, driver slot is arc-shaped slot.
Preferably, gear drive rod lower end is equipped with gear, and gear drive rod is connect by the terminal pad of upper end with drive disk,
Gear drive rod and platen junction are equipped with bearing.
Preferably, driving device includes oil cylinder, cylinder putter and spur rack, and one end of cylinder putter is connect with oil cylinder, oil
The other end of cylinder push rod is connect with spur rack.
Beneficial effects of the present invention can effectively solve gap error caused by positioning using fuse, registration；Structure letter
It is single, drive disk revolution is driven using gear drive rod, driver slot pushes corpus unguis to move synchronously, driver slot and small bearing and correction
The part processing precisions such as pawl easily guarantee, simple installation and high transmission accuracy；Three correction pawl end faces are all arcs, each correction pawl
It is point contact with workpiece hole side wall, three points determine a circle, it can be achieved that arbitrary diameter workpiece in the range of stroke allows
Automated exchanged cutter and positioning accuracy is not influenced, applicability is good；It is convenient after the completion of work pieces process since means for correcting telescopic extensions are big
Remove workpiece；Improve Workpiece Machining Accuracy and clamping efficiency；Correction pawl is moved along T-slot length direction always when mobile,
Support device, good operation stability are equipped with below drive disk.
Detailed description of the invention
Fig. 1 is the status diagram that the present invention clamps workpiece；
Fig. 2 is the status diagram that the present invention does not clamp workpiece；
Fig. 3 is structural schematic diagram of the invention；
Fig. 4 is oil cylinder and spur rack structural schematic diagram；
Fig. 5 is gear drive rod structural schematic diagram；
Fig. 6 is correction pawl and platen structure schematic diagram；
Fig. 7 is correction pawl main view；
Fig. 8 is the A-A cross-sectional view of Fig. 7；
Fig. 9 is support base and platen structure schematic diagram；
Figure 10 is support base cross-sectional view；
Figure 11 drive disk structural schematic diagram.
Symbol description in figure
1. drive disk；2. small bearing；3. corpus unguis；4. correcting pawl pedestal；5. platen；6. bearing；7. support base；8. gear drives
Lever；9. spur rack；10. cylinder putter；11. oil cylinder；12. terminal pad；13. driver slot；14. workpiece hole side wall；15. support base
Ball；16. clamping screw；17. workpiece；18. correcting pawl.
Specific embodiment
The present invention is described further below with reference to embodiment.
As shown in Fig. 1-3,11, the present invention includes platen 5, driving device, transmission device and means for correcting, and transmission device is worn
5 middle part of platen is crossed, transmission device lower end is connect with driving device gear, one end connection of transmission device upper end and means for correcting,
The other end of means for correcting is used to contact positioning with workpiece hole side wall 14；The bottom of means for correcting is connect with platen 5.
Transmission device includes gear drive rod 8, the drive disk being set on gear drive rod 81, is uniformly divided on drive disk 1
There are three driver slots 13 for cloth, and one end of driver slot 13 is close to 1 center of circle of drive disk, and the other end of driver slot 13 is far from the circle of drive disk 1
The heart；Driver slot 13 is arc-shaped slot.
As shown in figure 5,8 lower end of gear drive rod is equipped with gear, the terminal pad 12 and driving that gear drive rod 8 passes through upper end
Disk 1 connects, and gear drive rod 8 and 5 junction of platen are equipped with bearing 6.
As shown in figs 6-8, means for correcting includes corpus unguis 3, the correction pawl pedestal 4 connecting with 3 basal sliding of corpus unguis；Corpus unguis 3
One end be equipped with connecting rod upwards, correction pawl 18 is connected with above the other end of corpus unguis 3.Connecting rod is equipped with small bearing 2, small axis
It holds 2 to cooperate with 13 high-precision gap of driver slot, allows small bearing 2 accurate smooth sliding in driver slot 13, realization was driven
The stability and accuracy of journey, utmostly reduce frictional force.
Correction pawl 18 is threadedly attached on corpus unguis 3, and correction side of the pawl 18 far from connecting rod, that is, outermost side end face is
The small arcwall face outwardly protruded, small arcwall face are used for and 14 point contact of workpiece hole side wall.
13 both ends of driver slot are substantially equal to corpus unguis 3 in the distance of the arrow direction vector of diagram 11 compared with the center of circle of small arc-shaped
Flexible stroke.
There are three means for correctings, and is evenly distributed on platen 5 centered on gear drive rod 8.
It corrects 4 length direction of pawl pedestal and is equipped with T-slot, 3 bottom of corpus unguis is equipped with the convex block matched with T-slot.
As shown in figure 4, driving device includes oil cylinder 11, cylinder putter 10 and spur rack 9, one end and the oil of cylinder putter 10
Cylinder 11 connects, and the other end of cylinder putter 10 is connect with spur rack 9.
As shown in Figures 9 and 10, it being also connected on platen 5 there are three support device, three support devices are located at 1 lower section of drive disk,
And it is evenly distributed between three means for correctings；Support device top is equipped with support base ball 15 free to rotate, three branch
Support 15 highest point of seat ball it is consistent, and with 1 lower end face contact of drive disk.
Three support base balls 15 can not only support drive disk 1, guarantee stationarity when drive disk 1 rotates；It can be with
It produces relative rotation between drive disk 1, utmostly reduces frictional force.
Support device includes support base 7, support rod, support base ball 15 and clamping screw 16, and support rod is located at support base 7
Groove in, and between bottom portion of groove be equipped with spring；Support base ball 15 it is free to rotate be located at supporting bar top；Locking
Bolt 16 is located on 7 side wall of support base, is used for locking support bar.
When first used, the clamping screw 16 of 7 side wall of support base is unclamped for the present apparatus, effect of the support rod in bottom spring
Under move up, support base ball 15 touches 1 bottom surface of drive disk automatically, at this point, by 16 locking support bar of clamping screw, 3 circles
The plane and drive disk bottom surface that ball highest point is constituted are same plane, realize accurate support effect.
The course of work of the invention:
First workpiece 17 is put on platen 5, platen 5 is fixed setting, and three means for correctings are located in the hole of workpiece 17
Side, means for correcting and workpiece hole side wall 14 have gap (referring to fig. 2) at this time.Press hydraulic selector, the cylinder putter 10 of oil cylinder 10
It moves in the direction of the arrow, rotary motion is done with moving gear drive rod 8 by spur rack 9, gear drive rod 8 passes through 12 band of terminal pad
Dynamic drive disk 1 rotates.While drive disk 1 rotates, driver slot 13 pushes three corpus unguis 3 centered on gear drive rod 8 along school
The T-slot of positive pawl pedestal 4 moves in a straight line outward, and corpus unguis 3 uniformly expands outwardly, three correction pawls 18 on three corpus unguis 3
The circle and drive disk 1 that highest point is constituted are concentric, and drive disk 1 is also concentric with drive rod 8.When three correction pawls 18 touch work simultaneously
When the side wall 14 of part hole, 17 center of workpiece is overlapped with 1 center of drive disk automatically, since the oil pressure in hydraulic cylinder 11 persistently exists,
Spur rack 9 has always lasting active force to whole device, and three correction pawls 18 are tightly bonded with workpiece hole side wall 14, without between
Gap, the cooperation for correcting pawl 18 and workpiece 17 at this time have self-locking function.11 stop motion of hydraulic cylinder, the pressure provided maintain
Steady state value, guarantees that three correction pawls 18 and workpiece hole side wall 14 have interaction force, provides guarantee for positioning.
After the completion of work pieces process, hydraulic selector is pressed again, then cylinder putter 10 does linear slide, spur rack to opposite direction
9 band moving gear drive rods 8 rotate backward, and gear drive rod 8 drives drive disk 1 to reversely rotate, and finally returns three correction pawls 18
It contracts and leaves workpiece hole side wall 14.Workpiece 17 is removed, when changing next workpiece, even if the tolerance in hole is different, as long as three
18 contact workpiece hole side wall 14 of pawl is corrected, workpiece centre can be automatically positioned.
The present invention can effectively solve gap error caused by positioning using fuse；Applicability is good, is applicable to different Kong Zhi
The workpiece of diameter；Since means for correcting telescopic extensions are big, workpiece 17 after processing is completed, conveniently removes workpiece 17；Workpiece 17 is improved to add
Work precision and clamping efficiency.Specifically advantage includes:
1, it is driven using spur rack, gear drive rod 8, drive disk 1 are used as slave unit, and gear drive rod 8 and platen 5 connect
It meets place and is equipped with bearing 6, drive disk 1 is connect with correction pawl by small bearing 2, and driving aspect loads small, gear drive rod 8 and straight-tooth
9 manufacturing cost of item is low, and installation is simple；
2, gear drive rod 8 drives drive disk 1 to turn round, and driver slot 13 pushes corpus unguis 3 to move synchronously, driver slot 13 and small axis
It holds 2 and corrects the equal part processing precisions of pawl 18 and easily guarantee, simple installation and high transmission accuracy；
3, correction pawl pedestal 4 is fixedly connected with platen 5, and correction pawl pedestal 4 is slidably connected with corpus unguis 3 by T-slot, is guaranteed
Corpus unguis 3 is moved along T-slot length direction always when mobile, guarantees the stationarity of device movement；
4, there are three support devices for 1 lower end surface of drive disk, can guarantee the stability of drive disk rotation process well；
5, three 18 end faces of correction pawl are all arcs, and each correction pawl 18 and workpiece hole side wall 14 are point contact, three points
Determine a circle, actuator travel allow in the range of, it can be achieved that arbitrary diameter workpiece automated exchanged cutter and do not influence positioning accurate
Degree, three correction 18 whose forwardmost end portions of pawl are readily replaceable after abrasion by being threaded on corpus unguis 3.
The only above person, only specific embodiments of the present invention, when cannot be limited the scope of implementation of the present invention with this, therefore
The displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the invention patent protection scope, should still belong to power of the present invention
The scope that sharp claim is covered.
Claims (10)
1. a kind of automatic capturing positioning device, characterized in that described including platen, driving device, transmission device and means for correcting
Transmission device passes through in the middle part of the platen, and the transmission device lower end is connect with the driving device gear, the transmission device
Upper end is connect with one end of the means for correcting, and the other end of the means for correcting is used to contact positioning with workpiece hole side wall；Institute
The bottom for stating means for correcting is connect with the platen；
The drive disk that the transmission device includes gear drive rod, is set on the gear drive rod, on the drive disk
There are three driver slots for even distribution, and close to the drive disk center of circle, the other end of the driver slot is separate for one end of the driver slot
The drive disk center of circle.
2. automatic capturing positioning device according to claim 1, which is characterized in that the means for correcting include corpus unguis, with
The correction pawl pedestal of the corpus unguis basal sliding connection；One end of the corpus unguis is equipped with connecting rod upwards, sets in the connecting rod
There are small bearing, the small bearing and the driver slot clearance fit；Correction pawl is connected with above the other end of the corpus unguis.
3. automatic capturing positioning device according to claim 2, which is characterized in that on correction pawl base length direction
Equipped with T-slot, the corpus unguis bottom is equipped with the convex block matched with the T-slot.
4. automatic capturing positioning device according to claim 3, which is characterized in that the correction pawl is far from the connecting rod
Side be equipped with the small arcwall face that outwardly protrudes, the small arcwall face is used for and the workpiece hole side wall point contact.
5. automatic capturing positioning device according to claim 4, which is characterized in that there are three the means for correctings, and with
It is evenly distributed on the platen centered on the gear drive rod.
6. automatic capturing positioning device according to claim 5, which is characterized in that branch there are three being also connected on the platen
Support arrangement, three support devices are located at below drive disk, and are evenly distributed between three means for correctings；The branch
Support arrangement top is equipped with support base ball free to rotate, and three support base ball highest points are consistent.
7. automatic capturing positioning device according to claim 6, which is characterized in that the support device include support base,
Support rod, support base ball and clamping screw；The support rod is located in the groove of the support base, and with the bottom portion of groove
Between be equipped with spring；The support base ball it is free to rotate be located at the supporting bar top；The clamping screw is located at institute
It states on support base side wall, for locking the support rod.
8. automatic capturing positioning device according to claim 1 or claim 7, which is characterized in that the driver slot is arc-shaped slot.
9. automatic capturing positioning device according to claim 8, which is characterized in that gear drive rod lower end is equipped with tooth
Wheel, the gear drive rod are connect by the terminal pad of upper end with the drive disk, and the gear drive rod and the platen connect
It meets place and is equipped with bearing.
10. automatic capturing positioning device according to claim 8, which is characterized in that the driving device includes oil cylinder, oil
Cylinder push rod and spur rack, one end of the cylinder putter are connect with the oil cylinder, the other end of the cylinder putter and described straight
Rack gear connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084170.5A CN109676414B (en) | 2019-01-29 | 2019-01-29 | Automatic alignment positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084170.5A CN109676414B (en) | 2019-01-29 | 2019-01-29 | Automatic alignment positioning device |
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| Publication Number | Publication Date |
|---|---|
| CN109676414A true CN109676414A (en) | 2019-04-26 |
| CN109676414B CN109676414B (en) | 2023-09-19 |
Family
ID=66195123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910084170.5A Active CN109676414B (en) | 2019-01-29 | 2019-01-29 | Automatic alignment positioning device |
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| Country | Link |
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| CN (1) | CN109676414B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977554A (en) * | 2019-12-20 | 2020-04-10 | 天津大学 | Automatic centering and clamping machining tool for rotary workpieces |
| CN113664616A (en) * | 2021-07-16 | 2021-11-19 | 安庆中船动力配套有限公司 | Automatic alignment and detection system based on diesel engine cylinder cover processing machine tool |
| CN114310369A (en) * | 2020-09-29 | 2022-04-12 | 宝武装备智能科技有限公司 | Gear sleeve alignment positioning device and pin hole single-matching processing method thereof |
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| CN108772736A (en) * | 2018-09-03 | 2018-11-09 | 太仓盖兹汽车零部件有限公司 | A kind of automobile hub cover processing automatic positioning clamp |
| CN209453191U (en) * | 2019-01-29 | 2019-10-01 | 威海万丰镁业科技发展有限公司 | A kind of automatic capturing positioning device |
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| TW535685U (en) * | 2002-06-28 | 2003-06-01 | Jin-Shuen Huang | Automatic clamping mechanism for rim trimming machine of wheel rim on a bicycle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977554A (en) * | 2019-12-20 | 2020-04-10 | 天津大学 | Automatic centering and clamping machining tool for rotary workpieces |
| CN114310369A (en) * | 2020-09-29 | 2022-04-12 | 宝武装备智能科技有限公司 | Gear sleeve alignment positioning device and pin hole single-matching processing method thereof |
| CN114310369B (en) * | 2020-09-29 | 2023-09-29 | 宝武装备智能科技有限公司 | Pin hole single-matching processing method using tooth sleeve alignment positioning device |
| CN113664616A (en) * | 2021-07-16 | 2021-11-19 | 安庆中船动力配套有限公司 | Automatic alignment and detection system based on diesel engine cylinder cover processing machine tool |
| CN113664616B (en) * | 2021-07-16 | 2022-09-09 | 安庆中船动力配套有限公司 | Automatic alignment and detection system based on diesel engine cylinder cover processing machine tool |
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| Publication number | Publication date |
|---|---|
| CN109676414B (en) | 2023-09-19 |
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