CN208358259U

CN208358259U - A kind of high-precision servo turntable

Info

Publication number: CN208358259U
Application number: CN201821022812.6U
Authority: CN
Inventors: 刘权; 杨叶
Original assignee: Shanghai Only Industrial Development Co Ltd
Current assignee: Shanghai Only Industrial Development Co Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2019-01-11
Anticipated expiration: 2028-06-29

Abstract

The utility model discloses a kind of high-precision servo turntables, including rack body and center turntable, central rotating shaft and support workpiece are provided on the turntable of center, turret supports connecting plate is provided on rack body, central rotating shaft lower end is connected with aligning ball bearing, aligning ball bearing is connect with turret supports connecting plate centralized positioning, central rotating shaft upper end is connected with speed reducer by hitch bar, speed reducer is connected with servo motor, the speed reducer is fixed on rack body by speed reducer connecting plate, the detection positioning component for acting on center turntable is provided on rack body, not only mechanical structure is simple but also simplifies electric control structure for the utility model, simultaneously be also able to achieve centering heart turntable rotate smoothly and precise positioning, structure is simple, it is easy to the maintenance etc. in later period, the high-precision servo turntable is easy to operate, spirit Living, required electric control system is simple, stablizes, reduce product manufacturing cost and subsequent maintenance cost.

Description

A kind of high-precision servo turntable

Technical field

The utility model relates to technical field of automobile manufacture, specially a kind of high-precision servo turntable.

Background technique

It is processed in automotive upholstery and technology fields, the most frequently used six axis robot arms such as surface treatment is processed accordingly And surface treatment, because often there are the feelings such as structure is complicated, and type face is irregular in the automotive upholstery of corresponding processing or surface treatment Condition it is enterprising need to be then placed within equipment center turntable according to the compatible clamping mould of corresponding automotive upholstery production Row quick-clamping loading and unloading, and fast exchange is realized by autospinning platform mechanism.Turntable mechanism generallys use cam at present Divider, the direct-connected connection of threephase asynchronous machine, driving center turntable rotate clockwise 180 ° and position, and six axis robot arm adds After the completion of work or surface treatment, turntable mechanism another mistake hour hands rotate 180 ° and return to pick-and-place part origin, artificial to carry out blanking replacement After repeat this set processing action.

Existing turntable mechanism principle figure as shown in Figure 1: mainly put by limit switch 1, electronic adjustable ball by the mechanism Bar a2, electronic adjustable ball swing rod b3, center turntable 4, support base 5, threephase asynchronous machine 6, speed reducer 7, cam point Cutter mechanism 8, workpiece sensing sensor 9 and workpiece fastening screw 10 form, and wherein support base 5 is that rotating mechanism integrally props up Support, Cam splitter mechanism 8 are fixed in support base 5, and 7 torque output end of speed reducer and Cam splitter mechanism 8 are using rigid Property the band direct-connected connection of key coupler, 7 moment input end of speed reducer using flexible clutch and the direct-connected connection of threephase asynchronous machine 6, Positive and negative rotation campaign is done with threephase asynchronous machine 6 above by the control of PLC master control signal, it is defeated to be output to 7 moment amplification of speed reducer It is sent to above Cam splitter mechanism 8, drives center turntable 4 to do positive and negative rotation campaign, wherein doing clockwise with center turntable 4 The dynamic signal of transhipment, workpiece mould is by the way that on 10 centre of location turntable 4 of workpiece fastening screw, workpiece sensing sensor 9 is sensed After workpiece mould is in place signal, PLC controls threephase asynchronous machine 6 and speed reducer 7 is driven to move, and makes Cam splitter mechanism 8 Drive center turntable 4 rotates clockwise 180 °, after workpiece rotation is moved to Processing Room, and limit switch 1 detects that center is revolved In place after signal, threephase asynchronous machine 6 stops working turntable 4, and electronic adjustable ball swing rod a2 is detecting center turntable 4 just Face signal feeds back to PLC system, and detection front workpiece mould has arrived Processing Room, carries out processing or facing operation, processing or PLC, which controls signal and is sent to threephase asynchronous machine 6 and is output to 7 moment amplification of speed reducer, after the completion of surface treatment is transported to cam point Above cutter mechanism 8, drives center turntable 4 to do 180 ° of rotation counterclockwise, center turntable 4 is rotatably moved to loading and unloading side Afterwards, limit switch 1 detects center turntable 4 in place after signal, and electronic adjustable ball swing rod b3 detects center turntable 4 Front signal feeds back to PLC system, and detection front workpiece mould has arrived loading and unloading side, and threephase asynchronous machine 6 stops working, manually Loading and unloading movement is carried out, the above movement moves back and forth.

However above-mentioned turntable mechanism has the disadvantage in that

1, in 4 rotation process of center turntable, Cam splitter mechanism 8 is worm gear structure, due to this cam point Cutter mechanism 8 be driven back clearance it is larger, torque output transmission process in, can not to center turntable 4 carry out precise positioning, and this Transmission back clearance can not be compensated by other PLC control modes, in the mistake of quickly rotation start and stop by the way of stiffened limit Cheng Zhong is easy to damage speed reducer 7, and threephase asynchronous machine 6 passes through Frequency Converter Control speed signal, live signal feedback effect Fruit is poor, and positioning accuracy is not high.Such structure is only applicable in the product required with common process processing accuracy, is unable to satisfy part The precision use demand of product；

2, such Cam splitter mechanism 8 can be only installed at device bottom, wherein corresponding driving part, phase asynchronous electricity Machine 6, speed reducer 7 are mounted in Cam splitter mechanism 8, are placed in plant bottom case, are made to the mounting height of center turntable 4 At certain limitation, there are large effect, the relatively useless power of overall mechanism operator loading and unloading, to peace to subsequent human engineering layout Part is picked and placed in full operation, and there are more hidden danger, while also affecting the efficiency of subsequent loading and unloading；

3, such Cam splitter mechanism 8 drives higher cost, and power consumption is higher, manufactures item with the green intelligent advocated at present Mesh theory is not inconsistent, subsequent costly using power consumption and overall mechanism maintenance etc., does not meet public chemical plant energy conservation and environmental protection and uses Demand.

Utility model content

The problem of for background technique, the utility model provide a kind of high-precision servo turntable, machinery knot Structure is simple, automatic DNA image cytometer system cost is low, while can guarantee that workpiece does high-precision rotary positioning movement.

To achieve the above object, the utility model provides the following technical solutions: a kind of high-precision servo turntable, including branch Frame ontology and center turntable are provided with central rotating shaft and support workpiece on the center turntable, set on the rack body Be equipped with turret supports connecting plate, the central rotating shaft lower end is connected with aligning ball bearing, the aligning ball bearing with it is described Turret supports connecting plate centralized positioning connection, the central rotating shaft upper end is connected with speed reducer, the deceleration by hitch bar Machine is connected with servo motor, which is fixed on the rack body by speed reducer connecting plate, on the rack body It is provided with the detection positioning component for acting on the center turntable.

As the utility model a preferred technical solution, the detection positioning component is two groups, solid by support frame Above the center turntable, and respectively at center turntable two sides, the detection positioning component includes for examining It surveys the center turntable in place and the limit switch of front signal and electronic adjustable ball swing rod travel switch, further includes using In the positioning cylinder assembly of center turntable positioning.

As the utility model a preferred technical solution, this is fixed with hard limit anticollison block on support frame as described above.

As the utility model a preferred technical solution, the support workpiece includes that the center rotation is fixed in distribution The support cylinder of turntable two sides, the rack body two sides are provided with turret supports frame, are connected on the turret supports frame Turret supports connecting rod, the support cylinder tail end are provided with turntable mould positioning shaft sleeve, turret supports connecting rod top It is provided with Universal caster bearing, the turntable mould positioning shaft sleeve is corresponding with the Universal caster bearing.

As the utility model a preferred technical solution, it is provided between the support cylinder and the rack body Reinforcing rib.

As the utility model a preferred technical solution, aligning ball bearing periphery is provided with protection Plate.

As the utility model a preferred technical solution, the hitch bar includes the keyed axle sleeve of speed reducer and rigidity Connecting bushing, the speed reducer are connect by the keyed axle sleeve of the speed reducer with the rigid connection axle sleeve, the rigid connection Axle sleeve is connect with the central rotating shaft.

Compared with prior art, the utility model has the beneficial effects that the high-precision servo turntable of the utility model, no But mechanical structure is simple, and simplifies electric control structure, at the same be also able to achieve centering heart turntable rotate smoothly and it is precisely fixed Position, structure is simple, is easy to the maintenance etc. in later period, and the high-precision servo turntable is easy to operate, flexible, required electrical control System is simple, stablizes, reduce product manufacturing cost and subsequent maintenance cost.

Detailed description of the invention

Fig. 1 is turntable structural scheme of mechanism in the prior art；

Fig. 2 is the utility model rotary display stand structure schematic diagram；

Fig. 3 is the utility model turntable side view；

Fig. 4 is I-I sectional view in Fig. 3；

Fig. 5 is the utility model positioning cylinder assembly structure schematic diagram；

In Fig. 1: 1- limit switch；2- electronic adjustable ball swing rod a；3- electronic adjustable ball swing rod b；The rotation of the center 4- Turntable；5- support base；6- is phase asynchronous；7- speed reducer；8- Cam splitter mechanism；9- workpiece sensing sensor；10- workpiece Fastening screw.

In Fig. 2~Fig. 5: 1- rack body；The center 2- turntable；3- central rotating shaft；4- turret supports connecting plate；5- aligning Ball bearing；6- speed reducer；7- servo motor；8- speed reducer connecting plate；9- support frame；10- limit switch；11- electronics is adjustable Formula ball swing rod travel switch；12- positioning cylinder assembly；13- limits anticollison block firmly；14- support cylinder；15- turret supports frame； 16- turret supports connecting rod；17- turntable mould positioning shaft sleeve；18- Universal caster bearing；19- reinforcing rib；20- protection Plate；The keyed axle sleeve of 21- speed reducer；22- rigid connection axle sleeve；23- fastening screw.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please see Fig. 2 to Fig. 4, the utility model provides a kind of high-precision servo turntable, including rack body 1 and center Turntable 2 is provided with central rotating shaft 3 and support workpiece on the center turntable 2, is provided with turntable on the rack body 1 Connecting plate 4 is supported, 3 lower end of central rotating shaft is connected with aligning ball bearing 5, the aligning ball bearing 5 and the turntable 4 centralized positioning of connecting plate connection is supported, 3 upper end of central rotating shaft is connected with speed reducer 6, the speed reducer by hitch bar 6 are connected with servo motor 7, which is fixed on the rack body 1 by speed reducer connecting plate 8, the rack body The detection positioning component for acting on the center turntable 2 is provided on 1.

In a particular embodiment, the detection positioning component is two groups, is fixed on the center by support frame 9 and revolves 2 top of turntable, and respectively at 2 two sides of center turntable, the detection positioning component includes for detecting the center rotation Turntable 2 further includes for described in place and the limit switch 10 of front signal and electronic adjustable ball swing rod travel switch 11 The positioning cylinder assembly 12 that center turntable 2 positions；

The support workpiece includes the support cylinder 14 that 2 two sides of center turntable are fixed in distribution, the bracket sheet 1 two sides of body are provided with turret supports frame 15, and turret supports connecting rod 16, the support are connected on the turret supports frame 15 14 tail end of cylinder is provided with turntable mould positioning shaft sleeve 17, and 16 top of turret supports connecting rod is provided with Universal caster bearing 18, the turntable mould positioning shaft sleeve 17 is corresponding with the Universal caster bearing 18, the further support cylinder 14 with Reinforcing rib 19 is provided between the rack body 1.

The High Precision Servo Table course of work of the utility model is as follows: being manually centrally disposed workpiece in loading and unloading side On turntable 2,14 stress of support cylinder supports workpiece, and the reinforcing rib added plays firm effect, then passes through Universal caster It is fixed finally to carry out manual mould by bolt insertion turntable mould positioning shaft sleeve 17 by distribution of force to rack body 1 for bearing 18 Behind position, manual loading and unloading movement is completed, PLC control signal feeds back to servo motor 7, speed reducer 6 is driven to rotate clockwise 180 ° Processing Room is reached, the limit switch 10 of side detects center turntable 2 in place after signal, and servo motor 6 stops working, positioning Cylinder assembly 12, which controls for alignment pin 23 to be inserted into center turntable 2 by PLC, is positioned (as shown in Figure 5), side Electronic adjustable ball swing rod travel switch 11 detects that turntable 2 front signal in center feeds back to PLC system, detects positive work Part mould has arrived Processing Room, carries out processing or facing operation, and PLC control signal is sent to after the completion of processing or surface treatment Servo motor 6 is output to speed reducer 7 and center turntable 2 is driven to do 180 ° of rotation counterclockwise above, and center turntable 2 is rotated and is moved After moving loading and unloading side, the limit switch 10 and electronic adjustable ball swing rod travel switch 11 of the other side detect that center rotates The positioning of platform 2 and front signal simultaneously feed back to PLC system, and detection front workpiece mould has arrived loading and unloading side, and servo motor 6 stops Work after the completion of the above set, manually carries out loading and unloading, repeats above-mentioned movement and is processed or be surface-treated.

In a particular embodiment, this is fixed with hard limit anticollison block 13 on support frame as described above 9, in protecting Heart turntable 2, caused overtravel problem is after preventing the overload overshoot of center turntable 2 so as to cause colliding.

In a particular embodiment, 5 periphery of aligning ball bearing is provided with protection plate 20, and the purpose is to rise To the effect of protection aligning ball bearing 5.

In a particular embodiment, the hitch bar includes the keyed axle sleeve of speed reducer 21 and rigid connection axle sleeve 22, The speed reducer 6 is connect by the keyed axle sleeve 21 of the speed reducer with the rigid connection axle sleeve 22, the rigid connection axle sleeve 22 connect with the central rotating shaft 3, the purpose is to guarantee the cylindricity deviation in 2 process of center turntable and caused by it is same Wherein the keyed axle sleeve 21 of speed reducer is connect the influence of heart degree Error on Machining Accuracy with speed reducer 6 with flat key (being not drawn into figure), Axial float of the center turntable 2 in rotary course is prevented, the whole positioning accuracy of mould equipment is influenced.

Based on above-mentioned, the utility model is had advantages in that

1, using the above structure, servomotor, gear reducer, center turntable, self-aligning roller bearing, pedestal support assembly connect It is connected in an overall mechanism, to being fixed above and below the turntable of center by the way of two-point locating, forms one Formula torque output system improves stability of the center turntable overall mechanism in rotary course, and coupling part is all made of anti- Keyway or positioning finger setting are loosened, prevents assembly precision in use from deviating, greatly reduces in subsequent use process Cost of equipment maintenance, such structure can by servo motor carry out fast signal feedback, it can be achieved that center turntable it is quick Start and stop, directly by the way that after the positioning accuracy of equipment adjustment apparatus body, equipment overall precision is stablized, will not deviation, mesh can be met Preceding diversified processing or surface treatment need, this structure can easily realize fast accurate positioning and horizontal revolving motion in a word, Reduce swing of workpiece during setting-out, automatic control system is simple；

2, by being set to detection and localization component in equipment aspect, such as electronic adjustable ball swing rod travel switch, limit Switch and positioning cylinder assembly, limit switch can sense the displacement of center turntable rotation and the A/B of center turntable Face, and the displacement signal sensed is passed into control system, control system again by controlling servo motor speed, from And realize to the precise positioning in turntable rotary course, keep position of the center turntable in entire rotary course more accurate；

3, above such structure is instead of customary cam divider structure, and conventional Cam splitter structure is hollow at present Cabling, water power line are formed directly by hollow tube, wire rod loss abrasion are be easy to cause in rotation shutdown process, in addition cam point Cutter overall mechanism is heavy, and cost maintenance cost is high, lacks economy to subsequent clients use, is driven and is tied using such integral type Structure directly fixes pipeline on the rotary shaft, is rotated, is solved this problem in that by drag chain, and saves installation space, increases Subsequent artefacts use operating space, solve, the situations such as overload overshoot not accurate using cam orientation in Cam splitter structure,

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims

1. a kind of high-precision servo turntable, including rack body (1) and center turntable (2), it is characterised in that: the center It is provided with central rotating shaft (3) and support workpiece on turntable (2), is provided with turret supports connecting plate on the rack body (1) (4), central rotating shaft (3) lower end is connected with aligning ball bearing (5), the aligning ball bearing (5) and the turntable branch Connecting plate (4) centralized positioning connection is supportted, central rotating shaft (3) upper end is connected with speed reducer (6) by hitch bar, described to subtract Fast machine (6) is connected with servo motor (7), which is fixed in the rack body (1) by speed reducer connecting plate (8) On, the detection positioning component for acting on the center turntable (2) is provided on the rack body (1).

2. a kind of high-precision servo turntable according to claim 1, it is characterised in that: the detection positioning component is two Group is fixed on above the center turntable (2) by support frame (9), and respectively at center turntable (2) two sides, institute Stating detection positioning component includes for detecting the center turntable (2) in place and the limit switch of front signal (10) and electronics Adjustable ball swing rod travel switch (11) further includes the positioning cylinder assembly (12) for the center turntable (2) positioning.

3. a kind of high-precision servo turntable according to claim 2, it is characterised in that: fixed on support frame as described above (9) There is hard limit anticollison block (13).

4. a kind of high-precision servo turntable according to claim 1, it is characterised in that: the support workpiece includes distribution It is fixed on the support cylinder (14) of center turntable (2) two sides, rack body (1) two sides are provided with turret supports Frame (15) is connected with turret supports connecting rod (16) on the turret supports frame (15), support cylinder (14) the tail end setting There is turntable mould positioning shaft sleeve (17), turret supports connecting rod (16) top is provided with Universal caster bearing (18), described Turntable mould positioning shaft sleeve (17) is corresponding with Universal caster bearing (18).

5. a kind of high-precision servo turntable according to claim 4, it is characterised in that: the support cylinder (14) and institute It states and is provided with reinforcing rib (19) between rack body (1).

6. a kind of high-precision servo turntable according to claim 1, it is characterised in that: the aligning ball bearing (5) Periphery is provided with protection plate (20).

7. a kind of high-precision servo turntable according to claim 1, it is characterised in that: the hitch bar includes slowing down The keyed axle sleeve of machine (21) and rigid connection axle sleeve (22), the speed reducer (6) pass through the keyed axle sleeve of the speed reducer (21) and institute Rigid connection axle sleeve (22) connection is stated, the rigid connection axle sleeve (22) connect with the central rotating shaft (3).