CN201997904U - Built-in main clamp - Google Patents

Built-in main clamp Download PDF

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Publication number
CN201997904U
CN201997904U CN2010206000619U CN201020600061U CN201997904U CN 201997904 U CN201997904 U CN 201997904U CN 2010206000619 U CN2010206000619 U CN 2010206000619U CN 201020600061 U CN201020600061 U CN 201020600061U CN 201997904 U CN201997904 U CN 201997904U
Authority
CN
China
Prior art keywords
built
clamp
chuck
locating
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010206000619U
Other languages
Chinese (zh)
Inventor
赵卯
史有为
俞锡冶
李靖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FAW Group Corp
FAW Car Co Ltd
Original Assignee
FAW Group Corp
FAW Car Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FAW Group Corp, FAW Car Co Ltd filed Critical FAW Group Corp
Priority to CN2010206000619U priority Critical patent/CN201997904U/en
Application granted granted Critical
Publication of CN201997904U publication Critical patent/CN201997904U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a built-in main clamp, which consists of a bottom car body locating clamp, a built-in clamp body, a lifting system and a switching system. The built-in main clamp is characterized in that four-point locating mode is adopted between the built-in clamp body and the bottom car body clamp, the center of the four locating points is located at the center of gravity of the built-in clamp body to guarantee locating error is removed to the maximum degree during locating process. Two round hook pins and two rhombus hook pins which are arranged at the four locating points have a guiding role during descending process of the built-in clamp body and remove location deviation caused in descending. When the built-in clamp body descends to the right place, the hook pins locate the built-in clamp body and ensure that matching precision between the built-in clamp body and the bottom car body clamp reaches +/- 0.05mm. The built-in clamp body is capable of ascending and descending fast and stably and better guaranteeing precision of the car body dimensions. Meanwhile, the whole built-in clamp switching mechanism can also meet the requirement for multi-type mixed production of cars, the time for switching between different car types is short, and production speed is enhanced. Cost and cycle for production line of replacement between old and new types of cars are lowered. The split structure can have better control on the precision of the car body dimensions, and the objective of producing top-grade cars is achieved.

Description

Built-in main folder tool
Technical field
The utility model relates to a kind of built-in main folder tool, is used for the main chucking appliance system of piecing together of the automatic production line of multi-vehicle-type mixed flow.
Background technology
Along with expanding economy, automobile more and more becomes the walking-replacing tool of people's trip.In the domestic automobile market, along with the emergence of Chinese automobile industry, and the development trend of multi-vehicle-type small batch forms day by day, and particularly nearly 2 years domestic motor markets fiery impels each automobile enterprise new production line of trying to be the first to enhance production capacities.
Production capacity and quality are two big indexs of production line, and be same, as most important dimensional accuracy effector in the body in white welding assembly---and the main anchor clamps of piecing together become a key factor that promotes production capacity and guarantee body quality.
The main anchor clamps of piecing together mainly are divided into two big classes: external anchor clamps and built-in anchor clamps.Domestic each big car manufactures mainly adopts the external anchor clamps at present.
Mainly there is following drawback in present external anchor clamps: but product external anchor clamps reuse of when remodeling is poor, considers generally all to select to make the new new vehicle of main assembly anchor clamps correspondence of a cover from the cost and the project cycle; External anchor clamps are divided into left and right sides two parts, and translation from the side clamps vehicle body, and the relative accuracy between the two parts of the left and right sides is difficult to measure and guarantee; Because the restriction of this body structure adopts the external master to piece together the anchor clamps form, when carrying out the production of multi-vehicle-type mixed flow, the main station of piecing together needs floor space big, and the switching time between the vehicle is long.
Present built-in anchor clamps are mainly adopted by Japanese Toyota Company, and mainly have following drawback: the general location face is all at body top section, and is poor to the size Control of body bottom section; Adopt common SMC cylinder, do not have auto-lock function, cannot better control the vehicle body precision and evade production line and die suddenly and cause the impaired risk of anchor clamps.
Summary of the invention
The purpose of this utility model is to provide a kind of built-in main folder tool, strengthened size Control to body bottom section, and effectively controlled the relative position size of body bottom section anchor clamps and built-in chuck body, and can effectively improve the dimensional accuracy of vehicle body, produce high-quality C level car; Improve the rising or falling speed of built-in chuck body simultaneously by jacking system efficiently greatly, reduced the anchor clamps lifting and step up the shared time, improved the beat of production line; Vehicle switched system at a high speed can not only just carry out the switching of vehicle at short notice, realizes mixed flow production efficiently, and the main folder tool of the vehicle that increases newly do not take the space on ground, has saved the space of whole production line.
The technical solution of the utility model is achieved in that built-in main folder tool, is made up of bottom vehicle body positioning fixture, built-in chuck body, elevating mechanism, switched system; It is characterized in that: adopt four point location modes between built-in chuck body and bottom vehicle body anchor clamps, the center of gravity place that is centered close to built-in chuck body of four anchor points is to guarantee farthest to eliminate position error in location process; Four anchor points arrange alignment pin promptly two circles strike out with two rhombuses and strike out, the corresponding location of alignment pin on locating hole on the built-in chuck body and the bottom vehicle body positioning fixture, the quality of fit between built-in chuck body and the bottom vehicle body anchor clamps reach ± 0.05mm in.
Whole elevating mechanism is that four elevators are made on the basis with four anchor points of built-in chuck body, and elevator is made up of body, balladeur train and carriage; Between body and the balladeur train, be connected by line slideway between balladeur train and the carriage; Elevator adopts chaindriven form; Chain two ends and balladeur train in the body are fixedly linked, and when the driven by motor reductor makes sprocket rotation, slide in orbit by chain drive balladeur train and carriage.
The lifting motor of described four elevators is selected the motor of band absolute encoder for use.
Described body bottom section positioning fixture is struck out with 14 locating surfaces by 6 cover location floor assembly is positioned, and wherein has 2 cover location to strike out and is positioned at the middle size of only controlling the Z direction of floor assembly.
Described built-in chuck body is made up of the thick guidance system of 12 covers, 16 cover alignment pins and 103 locating surfaces, welds together with built-in chuck body body frame.
Good effect of the present utility model is its steadily lifting fast, and can better guarantee the dimensional accuracy of vehicle body, and a whole set of built-in anchor clamps switching mechanism can also satisfy the production of multi-vehicle-type mixed flow simultaneously, and the switching time between the vehicle is short, has promoted productive temp.Reduced the cost and the cycle of improvement of manufacturing line when the old and new's vehicle is replaced, its split-type structural can better be controlled the dimensional accuracy of vehicle body, has realized producing the target of C level high-grade car.
Description of drawings
The structure chart of the built-in main folder tool that Fig. 1 relates to for the utility model.
1 is the multi-vehicle-type switched system among the figure; 2 is built-in chuck body; 3 is the body bottom section positioning fixture; 4 is elevating mechanism.
Fig. 2 is built-in chuck body plane.
2-1 is the locating hole of the corresponding 3-1 alignment pin of four point positioning systems among the figure; 2-2 is the locating hole of corresponding 4-2 carriage alignment pin.
Fig. 3 is a body bottom section positioning fixture plane.
3-1 is four alignment pins of four point positioning systems among the figure.
Fig. 4 is the structure chart of built-in anchor clamps jacking system.
4-1 is a body among the figure; 4-2 is a carriage; 4-3 is a balladeur train; 4-4 is a sprocket wheel; 4-5 is a guide rail; 4-6 is a chain; 4-7 is a reductor; 4-8 is a servomotor.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, built-in main folder tool is made up of bottom vehicle body positioning fixture 3, built-in chuck body 2, elevating mechanism 4, switched system 1; It is characterized in that: 3 of built-in chuck body 2 and bottom vehicle body anchor clamps adopt four point location modes, and the center of gravity place that is centered close to built-in chuck body 2 of four anchor points is to guarantee farthest to eliminate position error in location process; Four anchor points have been arranged that two circles are struck out with two rhombuses and have been struck out, and play the effect of guiding in built-in chuck body 2 decline processes, eliminate the position deviation that produces in the decline process.Put in place when built-in chuck body 2 descends, the locating hole 2-2 that strikes out on the corresponding built-in chuck body 2 of 3-1 on the locating hole 2-1 bottom vehicle body positioning fixture 3 on the built-in chuck body 2 is corresponding with carriage alignment pin 4-2; Guaranteed quality of fit between built-in chuck body 2 and the bottom vehicle body anchor clamps 3 reach ± 0.05mm in.
Whole elevating mechanism 4 is that four elevators are made on the basis with 2 four anchor points of built-in chuck body, and elevator is made up of body 4-1, balladeur train 4-3 and carriage 4-2; Between body 4-1 and the balladeur train 4-3, be connected by line slideway between balladeur train 4-3 and the carriage 4-2; Elevator adopts chaindriven form; Chain 4-6 two ends and balladeur train 4-3 among the body 4-1 are fixedly linked, and when the sprocket wheel 4-4 on the motor 4-8 drive reductor 4-7 rotates, slide in orbit by chain 4-6 drive balladeur train 4-3 and carriage 4-2, realize the elevating movement of balladeur train 4-3; Body 4-1 drives balladeur train 4-3 and carriage 4-2 motion simultaneously, and the speed of service that has realized carriage 4-2 is the twice of body 4-1 chain 4-6 transmission speed, has saved the production line beat, and lift height also is the twice of guide rail 4-5 length.
The lifting motor of described four elevators is selected the motor of band absolute encoder for use, every motor adopts a cover band principal and subordinate to follow the Frequency Converter Control of function, there is a cover to be set at primary transducer in the quadruplet frequency converter, three covers are made as from frequency converter in addition, connect by the frequency converter ad hoc network between the frequency converter, principal and subordinate's frequency converter employing speed is followed function, realizes the synchronization lifting motion of four elevators.
The threshold place of described bottom vehicle body positioning fixture is provided with the Y direction of four groups of locating surface location vehicle bodies, at the wheel cover place Z direction that one group of locating surface supports vehicle body is set, and the Y direction of two groups of locating surface location vehicle bodies is set in vehicle body lower edge, rear portion.
The locating surface of described bottom vehicle body positioning fixture 3 and supporting surface are three-dimensional adjustable; Be easy to dismounting, can adjust according to the variation of body dimensions.
Described body bottom section positioning fixture 3 strikes out 3-1 by 6 cover location and 14 locating surfaces position floor assembly, wherein has 2 cover location to strike out and is positioned at the middle size of only controlling the Z direction of floor assembly.
Described built-in chuck body 2 is made up of the thick guidance system of 12 covers, 16 cover alignment pin 2-1 and 103 locating surfaces, welds together with built-in chuck body body frame.
As shown in Figure 3, body bottom section positioning fixture 3 is struck out with 14 locating surfaces by 6 cover location floor assembly is positioned, and wherein has 2 cover location to strike out and is positioned at the middle size of only controlling the Z direction of floor assembly; Body bottom section positioning fixture 3 establishes four groups of positioning and clamping mechanisms in place, body sill lower edge and two groups of positioning and clamping mechanisms are located in vehicle body lower edge, rear portion, and clamping structure is made up of clamp arm, clamp, hinge component (single gyroaxis), cylinder, cylinder hinge 5 parts.For guaranteeing the open angle maximum, the hinge swivel point should be 1/2 cylinder and uses stroke.The back-up block that the wheel cover place is provided with uses the polyurethane material that prevents bump injury, and polyurethane bears load, deformation direction is provided with metal plate support.
As shown in Figure 2, built-in chuck body 2 is made up of the thick guidance system of 12 covers, 16 cover alignment pin 2-1 and 103 locating surfaces, and these detent mechanisms all will weld together with built-in chuck body body frame; When selecting locating surface and locating hole, follow the principle of the use amount that as far as possible reduces cylinder, to alleviate the weight of built-in anchor clamps.Through the too much loss of weight processing of wheel, about 2.2 tons of present built-in chuck body weight can satisfy instructions for use through the calculating of load.
As shown in Figure 4, jacking system is made up of four elevators, and each elevator is made up of body 4-1, balladeur train 4-3 and carriage 4-2 three parts; Body 4-1 partly is the power source of whole elevator, and body 4-1 is assembling the bottom servomotor 4-8 and reductor 4-7, and reductor 4-7 is in order to underspeed and to improve moment of torsion, and reductor 4-7 holds the sprocket wheel 4-4 that ins succession, and sprocket wheel 4-4 drives chain 4-6 and rotates; Balladeur train 4-3 obtains to pass the power of coming from body 4-1 by sprocket wheel 4-4, and controls positional precision in the balladeur train 4-3 lifting process by slide rail; Carriage 4-2 is used to support built-in chuck body 2 and carries out lifting, and carriage 4-2 relies on sprocket wheel 4-4 to obtain to pass the power come from body 4-1 equally, and controls positional precision in its lifting process by slide rail; Because carriage 4-2 and balladeur train 4-3 rise by the power of body 4-1 simultaneously, and carriage 4-2 and balladeur train 4-3 carry out relative motion at the same time, so the speed of carriage 4-2 is the twice of frame output speed, form a kind of times of fast elevating mechanism, and lift height also is the twice of slide rail length.During the production line operation, rise the simultaneously height of 200mm of four elevator locating pieces contacts with four groups of locating surfaces of built-in anchor clamps and fits, after touch sensor detected elevator and the applying of built-in anchor clamps, the handgrip of gripping apparatus unclamped, and four elevators drop to built-in anchor clamps synchronously to be fallen on the alignment pin.Uphill process in contrast.This elevating mechanism has the advantages that load is big, speed fast, operate steadily.
Wherein built-in anchor clamps switched system adopts the mode of two-way rack-and-pinion to carry out laterally moving.
Wire system is made of the electric hoist and the retaining mechanism of 4 groups of synchronization liftings under the wherein built-in anchor clamps, built-in chuck body 2 moves to the station that rolls off the production line, retaining mechanism unclamps, built-in anchor clamps are caught by retaining mechanism, electric hoist is delivered to built-in anchor clamps on the surface technology dolly, by the technology dolly built-in anchor clamps is delivered to three-dimensional and detects.
The above only is a better embodiment of the present utility model; protection domain of the present utility model does not exceed with above-mentioned embodiment; as long as the equivalence that those of ordinary skills are done according to the utility model disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.

Claims (5)

1. built-in main folder tool is made up of bottom vehicle body positioning fixture, built-in chuck body, elevating mechanism, switched system; It is characterized in that: adopt four point location modes between built-in chuck body and bottom vehicle body anchor clamps, the center of gravity place that is centered close to built-in chuck body of four anchor points, four anchor points arrange alignment pin promptly two circles strike out with two rhombuses and strike out, the corresponding location of alignment pin on locating hole on the built-in chuck body and the bottom vehicle body positioning fixture, the quality of fit between built-in chuck body and the bottom vehicle body anchor clamps reach ± 0.05mm in.
2. according to the described built-in main folder tool of claim 1 system, it is characterized in that described elevating mechanism is that four elevators are made on the basis with four anchor points of built-in chuck body, elevator is made up of body, balladeur train and carriage; Between body and the balladeur train, be connected by line slideway between balladeur train and the carriage; Elevator adopts chaindriven form; Chain two ends and balladeur train in the body are fixedly linked, and when the driven by motor reductor makes sprocket rotation, slide in orbit by chain drive balladeur train and carriage.
3. according to the described built-in main folder tool of claim 1 system, the lifting motor that it is characterized in that described elevator is selected the motor of band absolute encoder for use.
4. according to the described built-in main folder tool of claim 1 system, it is characterized in that described body bottom section positioning fixture is struck out with 14 locating surfaces by 6 cover location positions floor assembly, wherein has 2 cover location to strike out to be positioned at the size of only controlling the Z direction in the middle of the floor assembly.
5. according to the described built-in main folder tool of claim 1 system, it is characterized in that described built-in chuck body is made up of the thick guidance system of 12 covers, 16 cover alignment pins and 103 locating surfaces, weld together with built-in chuck body body frame.
CN2010206000619U 2010-11-10 2010-11-10 Built-in main clamp Expired - Lifetime CN201997904U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206000619U CN201997904U (en) 2010-11-10 2010-11-10 Built-in main clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206000619U CN201997904U (en) 2010-11-10 2010-11-10 Built-in main clamp

Publications (1)

Publication Number Publication Date
CN201997904U true CN201997904U (en) 2011-10-05

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Application Number Title Priority Date Filing Date
CN2010206000619U Expired - Lifetime CN201997904U (en) 2010-11-10 2010-11-10 Built-in main clamp

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102463436A (en) * 2010-11-10 2012-05-23 中国第一汽车集团公司 Built-in main fixture
CN102489887A (en) * 2011-11-23 2012-06-13 湖南大学 Laser cutting and welding integrated fixture for butting vehicle body parts
CN102581535A (en) * 2012-02-29 2012-07-18 长城汽车股份有限公司 Flexible splicing device for sidewalls of automobiles
CN103934614A (en) * 2014-04-25 2014-07-23 上汽通用五菱汽车股份有限公司 Automobile body positioning device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102463436A (en) * 2010-11-10 2012-05-23 中国第一汽车集团公司 Built-in main fixture
CN102463436B (en) * 2010-11-10 2015-10-14 中国第一汽车集团公司 Built-in main fixture
CN102489887A (en) * 2011-11-23 2012-06-13 湖南大学 Laser cutting and welding integrated fixture for butting vehicle body parts
CN102489887B (en) * 2011-11-23 2013-08-14 湖南大学 Laser cutting and welding integrated fixture for butting vehicle body parts
CN102581535A (en) * 2012-02-29 2012-07-18 长城汽车股份有限公司 Flexible splicing device for sidewalls of automobiles
CN103934614A (en) * 2014-04-25 2014-07-23 上汽通用五菱汽车股份有限公司 Automobile body positioning device
CN103934614B (en) * 2014-04-25 2016-08-24 上汽通用五菱汽车股份有限公司 A kind of automotive body positioning device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20111005

Effective date of abandoning: 20151014