CN1981249A - Assembling stand, assembling method, and process display device for article - Google Patents

Abstract

An assembling stand, an assembling method, and a process display device for articles. The process display device is formed to not only change a part or a module to be installed but also change the carrying speed of a carrying means for carrying works according to the specifications of products when the products according to the specifications partly changed from the specifications of the products mass-produced according to standard specifications are added to these mass-produced products. Also, the device displays, in real time, the changing state of the speed of the carrying means according to the specifications so that workers can recognize it.

Description

The assembly bench of goods, assembly method and process display unit

Technical field

The present invention relates to the assembly bench that uses in the assembling of large-scale production goods, use its assembly method and use therein process display unit.Although the present invention is used for the especially assembling of motor vehicle of vehicle, it also can be used widely in other large-scale production goods of assembling.

Background technology

Extensively understand motor vehicle in the routine techniques and make line with rectilinear form.As its a kind of example, each treatment region is for example arranged between 10 and 20 meters with fixed intervals by processing sequence, and along making linearly shape setting of line.At first treatment region, to introducing car beam installation shaft assembly wherein.At next treatment region, temporarily sling this car beam and the rotation of standing upside down, and engine pack, transmission case assembly or the like are installed thereon.In the next treatment region, fuel tank, gas tank, wiring, pipeline or the like are installed on the Che Liang chassis.Each workpiece is in this way through in succession treatment region, and just increase thereon and new part and assembly be installed, and just higher along with become the completeness of vehicle by this workpiece of treatment region at every turn.Usually along making line ten to tens treatment regions are set, more particularly, 20 treatment regions for example are set.Transmit the system that does not finish vehicle and under low fixed speed, transmit the type of sliver along making line, or set the demand beat (takt) of regulation and in each treatment region, move and stop not finish to stepping the type of workpiece.In these two kinds of situations, the operation duration of workpiece during can be accessed in the single treatment region of motor vehicle manufacture process for example is 15 minutes between a few minutes and dozens of minutes.This time is called " demand beat ".The driver climbs up the vehicle that level is in accordance with regulations finished, and vehicle leaves the manufacturing line from the end of such manufacturing line under its driving.

Explained later term used herein " assembly ".The single complex form part that constitutes that the term that uses in this instructions " assembly " expression is assembled into by a plurality of parts, and a part and a material that vehicle assembling process is supplied with are generically and collectively referred to as " assembly ".Install on it engine pack of engine and necessary correlated parts and the operand in constituting vehicle manufacturing process not finish the wheel that vehicle supplies be the exemplary of " assembly ".In addition, be regarded as " assembly " fuel supplied with to the vehicle almost finished of the final stage of manufacture process and other liquid.

Opposite with the conventional manufacture method of extensive realization described above, the patent documentation 1 that applicant of the present invention provides discloses a kind of method of once assembling (two, three or other a smallest number) vehicle on the assembly bench that rotates.In brief, the invention of patent documentation 1 constitutes a kind of vehicle assembly method, wherein carries out the operation of a plurality of feeding parts to single radial center, and the part of these a plurality of supplies of assembling on the rotation assembly bench of this radial center place setting is to form vehicle.The main points of the application's parts invention relate to a kind of vehicle making-up shop, wherein under radial pattern, arrange a plurality of component deliveries district, and arrange single rotation assembly bench in its radial center, and the device that a progress with operation is consistently rotated this rotation assembly bench is set.

Additional explanation for invention that relevant patent documentation 1 is provided, to make single truck is example, plate-like is set in the workshop rotates assembly bench, thereby and this rotations assembly bench for example rotate and per hour turn around, perhaps in other words its fixed speed rotation of spending with per minute six by fixed speed.This rotation assembly bench is a plate-like, has for example 10 to 20 meters diameter.Set up a plurality of assembly drainage areas that are separated in the fan-shaped subregion roughly around this rotations assembly bench, and at first from the first assembly drainage area to this rotation assembly bench transmission shaft assembly.Then, with the corresponding to situation of this rotation under transmit car beam under the unassembled state from the second assembly drainage area to this rotation assembly bench.By the workman on this rotation assembly bench the car beam under this unassembled state is assemblied on this shaft assembly to form the car beam then.Then the car beam is installed on the shaft assembly.As time goes by, this rotation assembly bench further rotates, and near engine pack transmits and be suspended in car beam front end from the 3rd assembly drainage area, installs then.

Then transmit fuel tank and pipeline, and they are installed on the different vehicle parts from the 4th assembly drainage area.Transmit pilothouse from the 5th assembly drainage area and it is installed in the fore-end of car beam, thus the covering engine assembly.Various being connected between the required equipment of driving finished and is installed in the pilothouse, and on engine pack plant equipment is installed.This rotation assembly bench further rotates, and fuel, lubricating oil and other liquid are supplied with from the 6th assembly drainage area and is charged to the different parts of vehicle, now near finishing.In addition, wheel and hood transmit from the 7th assembly drainage area and are installed on the vehicle respectively.Assembly manipulation reaches the state of almost finishing when this rotation assembly bench also further rotates, and the fore-end of the vehicle that is assembling arrives the position of last component drainage area, and inspection part is connected with this vehicle this moment, starts its engine and carries out various inspections.Check that in case finish these turned position of this rotation assembly bench is that the fore-end of vehicle just in time faces toward the mobile route of finishing vehicle.The driver climbs up vehicle and is sitting on driver's the seat, and this vehicle relies on its driving to leave this rotation assembly bench.When this rotation assembly bench further rotates, begin to assemble next vehicle.That is, this rotates assembly bench facing to the first assembly drainage area and transmission shaft assembly.

When disclosed new manufacture method is once made (two, three or other a smallest number) vehicle in this way in patent documentation 1, obviously reduce as the number and corresponding time of the vehicle that is kept at inside, workshop at goods (work-in-process).Have realized that the obvious benefit that to see with the interests of carrying in the goods form as its result.Except with the relevant benefit of the interests of goods form carrying, can realize other economic benefit in a large number by the invention of implementing patent documentation 1, in the present patent application people's manufacturing shop, this system has been applied to large-scale or medium sized vehicle.

In addition, known to Kanban (sign board) system that the system of information and indication is provided to the workman who is just operating in manufacture process.When slightly changing each unit, the technical requirement of the workpiece of making on the single manufacturing line uses the Kanban system.If it is identical constituting the technical requirement of the vehicle that is incorporated into the workpiece in the wall scroll manufacturing line, then repeatedly finish the assembly manipulation of identical parts or assembly on the workpiece that in all treatment regions, arrives one by one in a predetermined manner at interval by the demand beat.But in actual motor vehicle manufacture process, even suppose that the vehicle model of all manufacturings is identical, the technical requirement of each vehicle in succession also can slightly change.In the Kanban system, when at the car beam sign board being set when the starting point of making line is introduced the car beam.When assembling one as the part of Assembly part when having the specific component that different technologies requires, on this sign board, show corresponding particular technology requirement, thereby the workman is understood.

In addition, known this pattern in the routine techniques is seen by the workman who makes the enterprising line operate of line easily thereby luminous license plate promptly is set near such manufacturing line.These conventional luminous license plates for example are to have the rectangle sign board view orientation and that hang from ceiling, thereby can be seen jointly from a plurality of operating process position by the workman.This sign board is with to be arranged at the set out sign board difference of message of demonstration that the platform at station and ticket card etc. locate such as " next train is on the x line: special fast No.yy, when the departure time mails to zz " of backbone very little.Show on these luminous license plates: current manufacturing time is set (be workpiece can in the duration that single treatment region is tided over), the degree that this manufacturing time of current time has been passed, and the planned production amount on the same day, completed actual quantity and other such details.Under the situation that manufacturing line accident stops, some sign boards show shut-down reasons and expect release time.Can also on such luminous license plate, show out of Memory and the indication that a plurality of workmans are provided jointly.As a cardinal rule, revise and control the displaying contents of conventional luminous license plate by the operation of managerial personnel in the Shop floor control chamber.

As the background technology relevant with luminous indication, patent documentation 2 and patent documentation 3 disclose a kind of the supervision and the parts of the error message of record-keeping system manufacturing apparatus under programmed control.In addition, disclose in patent documentation 4 that a kind of to reduce about the people be the display device that the capacity utilization of the manufacturing equipment mistake that causes descends.

Patent documentation 1:JP2004-291954A

Patent documentation 2:JP2003-263322A

Patent documentation 3:JP11-090795A

Patent documentation 4:JP9-141531A

Summary of the invention

Make on the line modification of not making the line transfer rate in response to the technical requirement of workpiece in the routine of making the identical product of a large amount of technical requirements continuously.As the explanation that is used for Kanban described above system is carried out, even exist technical requirement to require different parts with standard technique, it is consistent also making the duration of making the operation of carrying out in the different disposal district on the line, receives growth or the shortening that requires the different operation duration of causing owing to technical requirement and standard technique thereby absorb.Its consequence is, according to the manufacture target that set the same day, demand beat or transfer rate is set at the standard value in the permission variation range of operation duration.

But,, must can obtain the time enough reservation by prior confirmation for the absorption that can carry out the operation duration is increased or shortens for this reason.Although this is an acceptable under the frequency of the technical requirement of the operation duration that needs prolong is high situation, it is not preferred can obtaining for low-frequency technical requirement that the time keeps.

The objective of the invention is to solve such problem, and a kind of assembly bench and assembly method that is used for goods is provided, it can not carry out process operation to have under waste and the effective and efficient manner.Another object of the present invention provides the process display unit that a kind of and this assembly bench and assembly method are used together.

According to a first aspect of the present invention, a kind of assembly bench that is used for goods is provided, it comprises according to the device of the progress transmission work of process operation and depends on the technical conditions of the workpiece of transmission, sets the device of the transfer rate of conveyer in variable mode.

This assembly bench that is used for goods preferably includes near one or more being based upon the conveyer, perhaps in other words be positioned at the optical display that the related workman of process operation sees the position easily, and a display control unit of controlling the information that shows on the display device, and this display control unit comprises the unit that is used to read the movement position information of conveyer and shows this positional information on display device.In the case, preferably be provided for from the operating means of operation input is provided to display control unit near the conveyer.Can the touch screen district be set on the display screen of display device and serve as this operating means.

This display control unit preferably includes and is used for and the temporal information device of the movement position information of record transferring means and the information that shows on display device at least in part together.

Display device is preferably disposed on from the position of seeing easily to the operational zone of conveyer feeding parts or assembly, thereby and this indicative control unit preferably include and be used for the device that on each display device workman in the display message corresponding operating district can determine to prepare the technical requirement of start time of certain element or certain assembly and the part that will prepare or assembly.

Be preferably in and set up the abnormal show district in the display device, and this indicative control unit preferably includes the device that shows stop reason when the shut-down operation of conveyer accident in this abnormal show district.

This setting device preferably includes the sensor unit of detection conveyer position and according to the output information of this sensor unit and the technical requirement information of workpiece, controls the transmit control unit of the speed of this conveyer with programmable way.

Conveyer is plate-like preferably, so that the workpiece of or smallest number to be set on this plate-like conveyer, this conveyer preferably set for its roughly one cycle period executable operations to predetermined performance level.In the case, this setting device can comprise the sensor unit of the angle of rotation that detects conveyer and according to the technical requirement information of the output information of this sensor unit and the workpiece transmit control unit with the velocity of rotation of programming mode control conveyer.This sensor unit can comprise rotation that detects conveyer and the device that produces pulse information, and the output information of this sensor unit can be configured to comprise the time integral value of its pulse information.A device that is used at this time integral value that resets with regard to the prior datum of setting of the angle of rotation of this conveyer preferably is set.

This transmit control unit can comprise the device of setting the velocity of rotation of this conveyer according to its angle of rotation.Especially, the velocity of rotation of this assembly bench is set to little value or zero in the moment to the assembly of this turntable conveying work pieces, and on workpiece the moment of making-up unit the velocity of rotation of assembly bench is set to big value.

Can obtain the technical requirement information of workpiece from master unit.

This plate-like conveyer can comprise: the dish structure that workpiece can be installed thereon, support the bearing of the central shaft of this dish, a plurality of bottom surfaces from this dish are blown pressure-air and are risen the air cushion of this dish, the motor that driving-disc rotates around its central shaft, and this motor supplied with the driving circuit of drive current, and this setting device can comprise the control circuit of the drive current of this driving circuit output of control.

According to a second aspect of the present invention, a kind of assembly method that is used for goods is provided, it relates to: workpiece is set on assembly bench, the assembly manipulation that when being sent on this assembly bench, workpiece is advanced from the assembly drainage area handle component of setting up along the circumference of this assembly bench, and the regulation of this assembly bench between moving period in accordance with regulations degree carry out the assembly manipulation of this workpiece, in the method, according to the technical requirement of workpiece, control the movement velocity of this assembly bench in variable mode.Preferably this assembly bench is a plate-like, and the velocity of rotation of this plate-like assembly bench is controlled by variable mode.

According to a third aspect of the present invention, a kind of one or more process display units that are positioned near the optical display of conveyer that have are provided, wherein this conveyer is according to the progress travelling workpiece of process operation, wherein, set the transfer rate of conveyer in variable mode according to the technical requirement of the workpiece that transmits, this process display unit comprises the display control unit of control shown information on the display device, and this display control unit comprises the movement position information that reads this conveyer and the unit of display position information on display device.

According to the present invention, can utilize single assembly bench to carry out a plurality of assembly manipulations with each product in the different technologies requirement product with the rational running time.According to the present invention, to each operating process on this assembly bench, automatically from the assembly drainage area to the position control on this assembly bench of its transfer assembly to optimal location.According to the present invention, can be on the assembly bench that rotates rationally, correct and operate according to manufacturing planning, and do not need the workman according to its expectation or convenient to operation carry out any in advance or stop.The assembly bench that is used for the vehicle assembling of the present invention has the configuration through obtaining after repeatedly improving according to prototyping testing, and can stand the test of actual use by this enforcement.

In addition, as the movement position information by reading conveyer with show the result of this positional information, when the transfer rate of setting conveyer (orthoscopic or rolling disc) in variable mode (travelling speed or transport regularly), the workman is the recognition this point correctly, can carry out rational time distribution and operation is advanced under the situation of little waste.Because this demonstration, each workman who participates in assembling can correctly determine total situation line operate of going forward side by side, thereby optimizes action under the situation that needn't receive indication singly, and shortens process stand-by time and raising operating efficiency all sidedly.The workpeople can determine comprehensive situation and operation is advanced from displaying contents.Displaying contents is automatically as recorded and stored, and this can be useful later when the troublesome problem that occurs in the process correctly solving the time.

Description of drawings

Fig. 1 illustrates the planimetric map according to the essential part of the rotary type assembly bench of one embodiment of the invention.

Fig. 2 illustrates the front view according to the essential part of the rotary type assembly bench of one embodiment of the invention.

Fig. 3 illustrates the side view according to the essential part of the rotary type assembly bench of one embodiment of the invention.

Fig. 4 illustrates the square arrangement plan according to the control system of the parts of one embodiment of the invention.

Fig. 5 illustrates the front view according to the essential part of demonstration of one embodiment of the invention and control panel.

Fig. 6 explanation and according to the operation of the angle of rotation correspondence of the rotary type assembly bench of one embodiment of the invention.

Fig. 7 illustrates the analog representation that is input to according to the rotation control information in the parts of one embodiment of the invention.

Fig. 8 illustrates the enlarged drawing of Fig. 7 first.

Fig. 9 illustrates the square arrangement plan, with the electric system of explanation according to a kind of parts that contain the process display unit of one embodiment of the invention.

Figure 10 illustrates the process flow diagram that the process of finishing with control circuit shows the part of relevant control.

Figure 11 illustrates the control flow chart of display control section.

Figure 12 illustrates the control flow chart of abnormal show.

Figure 13 illustrates the display screen example under the steady state (SS).

Figure 14 illustrates master menu display screen example under the input pattern.

Figure 15 illustrates current state display screen example.

Figure 16 illustrates abnormal show screen example.

Description of reference numerals

1 dish

2 ground

3 bearings

4 column chambeies

5 air cushions

6 pedals

7 motors

8 sensors

Vehicle in 10 assemblings

12 control circuits

13 show and control panel

14 driving circuits

15 master units

16 pneumatic control valves

21 display control sections

22 process display units

Embodiment

Make in the line as the linear of the example of routine techniques explanation in front, the line forwarder supplies with respect to all component that is provided with along this line or the operational zone moves simultaneously, thereby must make the operation man-hour in all operations district be design uniformly.More extensive employing wherein according to demand beat drive discontinuously in the system of forwarder, fore-and-aft distance along each operational zone of making the line setting can not be distributed on basis alone and be set, thereby for the operation man-hour who makes each unit in each operational zone is uniformly, accurately batch operation.Uneven operation man-hour is that inevitably this causes consumption when making various types of model.From this angle, the assembling of adopting the rotary type assembly bench is obviously favourable.

In addition, during disclosed rotary type assembly bench, setting the various models that can utilize this rotary type assembly bench to make is favourable economically in patent documentation 1 is installed in the workshop.This can be supported by the velocity of rotation of setting this rotary type assembly bench according to the model that will make changeably.That is to say, in the manufacture method that adopts the rotary type assembly bench, as cardinal rule, finish the assembling that a time circulation time is finished vehicle by the performance level of setting at the rotary type assembly bench, thereby, by revising the velocity of rotation of this rotary type assembly bench, this manufacture method can keep rational and economic support to the vehicle with the different assembling man-hours of promptly having of different technologies requirement.

The technological concept of setting the velocity of rotation of rotary type assembly bench in variable mode that this paper proposes comprises two ideas.Its first idea is to set the idea that the rotary type assembly bench rotates the once required time in variable mode.For example, this is corresponding to being (mean speed is per minute 6 degree) or the notion of assembling a vehicle 40 minutes (mean speed is per minute 9 degree) in 60 minutes.Its second idea is also will be by variable mode fine division and setting velocity of rotation during the rotary type assembly bench rotates once.The notion that when for example, this is corresponding to assembling car beam the velocity of rotation of rotary type assembly bench is set as per minute 6 degree and the velocity of rotation of rotary type assembly bench is set as per minute 9 degree when assembling engine.In order to realize more rational vehicle assembling process, comprise these notions among the present invention.

On total operation man-hour, for example assembling in 60 minutes of oversize vehicle, and for example assembling in 40 minutes of medium sized vehicle.Correspondingly, process is designed to be configured to per minute 6 degree and be configured to per minute 9 degree in following average velocity of rotation of medium sized vehicle situation in following average velocity of rotation of oversize vehicle situation.But, can not be configured to move when needed around the assembly drainage area that rotary type assembly bench periphery is set up, be to take in by revising subtly and control velocity of rotation according to the technical requirement of the goods that will make during the process of rotating once to this support.Assembling car beam needs the different duration on the rotary type assembly bench, and for example oversize vehicle has long car beam and medium sized vehicle has short relatively car beam.Suppose the velocity of rotation of rotary type assembly bench is controlled to the speed of setting corresponding to mean speed described above that is fixed as, be sent on the rotary type assembly bench at following car beam of the situation of oversize vehicle, thereby and under the still uncompleted situation of its assembly manipulation this rotary type assembly bench be rotated further the assembly drainage area that becomes facing to wherein having prepared engine.Similar situation appears in the process of vehicle being installed engine.The technical requirement of the engine that will install for different models alters a great deal, thereby requires not simultaneously when engine technology, a part of installing as engine and the pipeline that will connect and the quantity of lead also are different.That is to say, be applicable to that according to the model difference operation duration of engine installation is also different.So just expect idea according to the velocity of rotation of the meticulous modification rotary type of model assembly bench.

Simultaneously, in the large-scale production process of goods, the velocity of rotation that the workman revises the rotary type assembly bench arbitrarily according to convenience separately is irrational.Promptly allow to change velocity of rotation, also should control it, and except the special circumstances of accident occur such as accident according to the process large-scale production plan of setting in advance rationally, velocity of rotation not should be able to by the workman according to its work and control on demand.In addition, although also can under the inhomogeneity situation that keeps total velocity of rotation, pass through to revise the modification of the rotational angle solution of per minute to velocity of rotation, but consider the duration of the assembly delivering position of rotary type assembly bench facing to each assembly drainage area, meticulous modification and setting velocity of rotation are rational during a rotating process.

By this angle, explained later adopts the embodiments of the invention of rotary type assembly bench.

Embodiment 1

Fig. 1 is the planimetric map according to the rotary type assembly bench of one embodiment of the invention.Fig. 2 is its front view.Fig. 3 is its side view.The dash area of Fig. 2 illustrates the ground cut-open view along the A-A shown in Fig. 1.The dash area of Fig. 3 illustrates the ground cut-open view.

Dish 1 be a wheel-like structure, and is installed on the mattess 2 of formation in the workshop, from but level with concordant.The diameter of dish 1 is approximately 12 meters.Dish 1 has the central shaft that is positioned at its center, and this central shaft is from coiling 1 bottom surface side and protrude by vertical with it orientation and in vertical direction by bearing 3 supportings.The central shaft of bearing 3 support discs 1, thus can in digging in the ground tens centimetres cylinder chamber 4 down, freely rotate, and can also allow along several millimeters of the direction backlash of central shaft.The bottom of cylinder chamber 4 is to form by enough hardness, thereby can support the weight of the vehicle that will assemble also can use repeatedly.In addition, in Fig. 1,, in the hole that hollows out ground by substantial cylindrical, air cushion 5 is set, 10 air cushions 5 are arranged altogether approximately with each position of dot-and-dash line circle mark indication.

Transmit pressurized air by the pipeline (not shown) to air cushion 5.Supply with the air pressure blow out like this, the lower surface of rise dish 1 in the upward direction, and because this air pressure, dish 1 floats over above the ground.Bearing 3 and air cushion 5 are article of having bought, serve as each part of this equipment, and the structure of bearing and air cushion does not comprise a kind of neoteric key element of formation.Around dish 1 16 arcuation pedals 6 (steel construction) altogether are set on the ground.Each pedal 6 fixes on the ground.Thereby these pedals are set between the dish 1 and the difference in height on ground, conveniently reorientate personnel, equipment and material earthward easily from ground to the top of dish 1 or from coiling 1 top.

The vehicle 10 of the goods that formation will be processed is arranged on the position that is shown in broken lines among Fig. 1.The simple expression of vehicle shape respectively is shown in Fig. 2 and Fig. 3.As explained earlier, when air cushion 5 was transmitted air pressure, dish 1 and vehicle became slight rising (between several millimeters and 10 to 20 millimeters) together.Periphery at dish 1 is provided with motor 7.The rotation axis belt pulley of motor 7 is arranged to contact with this dish, and gently around central shaft rolling disc 1.On the periphery of dish 1, whitewash black and white bar pattern, and sensor 8 is configured to utilize this pattern of optical signal detecting and calculates velocity of rotation by uniform spacing.Although constituting the vehicle that will process and be installed in the goods on the dish 1 is light at first, along with its weight increase of progress of processing.Becoming several tons near general assembly (TW) under the state of finishing; But, thereby be conditioned and be arranged to make dish 1 under this state, still can freely rotate even it should be noted that the air pressure of transmission from raked floor.

With respect to the center of Fig. 1 downwards and the parallel lines formed of the single-point of drawing to the right line constitute the passage that forms in the concrete surface.Be used for motor 7 power line, be used for the signal wire of sensor 8 and the piping that is used for air cushion 5 is transmitted air pressure or the like all is arranged on this passage.Also form several other passages in the ground of mounting disc thereon 1, though the air pressure piping that utilizes their signalization lines and arrive each air cushion 5 comprises the pipeline that is used for each bar circuit and pipeline in the drawings and can make this figure complexity, thereby omits them.

Fig. 4 is the square arrangement plan, and it illustrates the electrical system according to the equipment of one embodiment of the invention.Control circuit 12 is the sequence circuits that are made of integrated circuit.The sensor of explaining from above 8 is input to the rotational pulse of dish 1 in the control circuit 12.In addition, from master unit 15 through communication line input and the relevant information of technical requirement at the vehicle of the top operational of this rotary type assembly bench.Control circuit 12 is electrically connected with demonstration and control panel 13.Demonstration and control panel 13 are arranged near the position of seeing easily this rotary type assembly bench.The control output of control circuit 12 sends to the pneumatic control valve 16 of driving circuit 14 and air cushion 5.Driving circuit 14 is to driving the motor 7 supply power that above-mentioned dish rotates.

Fig. 5 is according to the demonstration of one embodiment of the invention and the front view of control panel.Demonstration and control panel 13 are arranged on the installation top of the assembly bench of suitable height on the ground.Some switches are drawn together in the end package of demonstration and control panel 13.Arrange power switch, automatic/hand selector switch, speed regulator switch (using), rotation direction selector switch, hummer cancellation switch and emergent shutdown switch for manual mode from a left side.Last package is drawn together display lamp and is formed, and G represents the lamp of green light and R represents the lamp that glows.The display lamp of green light indication present mode, and be synchronous operation lamp, standby lamp, operating light and desired location lamp automatically from a left side.Red colored lamp is luminous and show its reason under abnormal conditions.From left side demonstration be unusually: motor mistake, air pressure mistake, emergent halted state and auxiliary power battery mistake.

Each of the operator scheme of parts is configured to numeric data according to the technical requirement of each vehicle that is assembling.During test operation, accurately programme and preserve the velocity of rotation pattern that this rotary type assembly bench is used for tens kinds of vehicle technology requirements, and this component configuration is become by selecting one of them to finish setting.The sign content that responds so-called " Kanban system " is selected and is set.The Kanban system is a kind of system that manufacturing technology requires the slight mass production of products that changes in each unit that is used for, and be a kind of manufacturing control system, wherein the workpiece of advancing on the forwarder is applied sign, so the workman understands the change point in its technical requirement.The Kanban system is known, thereby this paper is not explained.

Fig. 6 illustrates an example of the rotation mode of rotary type assembly bench, and it assembles medium sized vehicle during corresponding to test operation.In Fig. 6, be positioned at the absolute value (0 to 360 degree) of angle of rotation that numeral on the inner round side is indicated the dish 1 of this rotary type assembly bench.The reset of these angles of rotation is carried out a spool assembly manipulation at this rotary type assembly bench in the position that vehicle withdraws from during from 0 to 95 degree rotates.Then, between the angle of rotation of 95 and 140 degree, advance the crane beam assembly manipulation.Then, between the angle of rotation of 140 and 177 degree, carry out the engine fitting operation.Then, fuel tank or the like is installed between the angle of rotation of 177 and 210 degree.

In this way, when this rotary type assembly bench rotates, with bracket in sequentially carry out pilothouse fitting operation (210 to 278 degree) in period of the angle of rotation correspondence that provides, liquid charges into operation (278 to 305 degree), tire fitting operation (305 to 320 degree) and hood fitting operation (320 to 330 degree).Then, as last processing, in the rotational segment of 330 and 360 degree angles of rotation, check the vehicle that assembling has almost been finished.Except various visual inspection items, have lead and probe on this rotary type assembly bench, they are electrically connected with the various piece that just is being assembled vehicle, and carry out the regulation inspection.Finish after the inspection, the driver climbs up and steering vehicle, thereby vehicle leaves this rotary type assembly bench under its propelling.

The numeral that circle contains among Fig. 6 illustrates angular span.For example, between angle of rotation 0 and 95 degree angles of rotation, carry out the assembly manipulation of axle, thereby its angular span is 95 degree.Between the angle of rotation of 95 and 140 degree, advance the assembly manipulation of crane beam, thereby angular span is 45 degree.Correspondingly, when all numerals in the addition circle, their total amount is 360 degree (once rotating).The numeral duration of containing in Fig. 6 square frame (second).The duration of axle assembly manipulation is depicted as 145 seconds.The duration of car beam assembly manipulation is 130 seconds.Correspondingly, all digital summations of containing of square frame are represented the required T.T. of assembly manipulation of a car.Point out that in passing all digital summations that contain in Fig. 6 square frame are 2780.0 seconds, promptly 46 minutes and 20 seconds.

In method of the present invention and parts, even in a part handling single step, velocity of rotation is not uniformly, and feature of the present invention also is velocity of rotation is carried out more accurate control.

Fig. 7 illustrates and goes through above-mentioned 2,780 seconds promptly 46 minutes and 20 seconds corresponding rotational angles.This figure shows the table that the input and the numeric data of control circuit 12 explained before are set with curve form so that to this easily with the understanding that quantizes.Time illustrates on transverse axis and extended to 2,780 seconds from 0 second.The rotational angle of rotary type assembly bench (dish 1) illustrates on Z-axis and extends to 360 degree from 0 degree.The details that shows each process operation in the bracket on Fig. 7 transverse axis (elapsed time) with numeral.That is to say that the velocity of rotation of rotary type assembly bench of the present invention is accurately programme controlled, thereby each specific operation is realized rationally supporting, or even also be like this within the single operation process.

Fig. 8 be its first promptly and the enlarged drawing of the part of the operation (1) of Fig. 7 correspondence.As an example, this illustrates the enlarged drawing of the relation between time and the angle of rotation process in the axle assembly manipulation of angle of rotation between 0 and 95 degree with this.Although be to top repetition, Fig. 8 still shows the table of the numeric data that is used to set control circuit 12 with the curve form, so that promote this convenience and the understanding of quantification.As top explanation, during 145 seconds between rotary type assembly bench 0 degree and the 95 degree angles of rotation, carry out an assembly manipulation, what Fig. 8 utilized angle of rotation on time on the transverse axis and the Z-axis shows this part through coming.The velocity of rotation of rotary type assembly bench is represented in the inclination of this curve.That is,, required all parts, material and the instrument of axle assembly manipulation on the rotary type assembly bench is sent on this rotary type assembly bench from the assembly drainage area in the starting point of these operation beginnings.For this reason, the velocity of rotation of this rotary type assembly bench is controlled to temporarily low especially.Carry out therein during the period of assembly manipulation, the rotary type assembly bench to be rotating relative to high speed, thereby the transmission edge of transfer equipment and material arrives just in time the position that faces toward with corresponding assembly drainage area in the next one is handled.Then, its velocity of rotation descends gradually on the point of an assembly manipulation finishing, and transition that the next one is handled takes place.The next transition point of handling is positioned on the angle of 95 degree, goes through 145 seconds from beginning to rotate on this angle.

The Fig. 7 that explains above and Fig. 8 are examples, and this paper does not provide the demonstration or the explanation of relevant other model example.In fact, be that tens kinds of vehicle technology requirements have designed and prepared similar control model.All these is numeric data and is input in the sequence circuit.

Although this paper has provided explanation with regard to motor vehicle or vehicle, the assembly manipulation that uses this rotary type assembly bench is not subjected to the restriction of vehicle but can extensively realizes.

Embodiment 2

Owing to control the movement velocity of assembly bench in the present invention changeably according to the technical requirement of workpiece, therefore needs are in real time along with the progress of process operation provides required indication to the workman.In addition, also need the demonstration input appropriate responsive of workman to the process display unit.The process display unit that adopts previously is insufficient for these purposes.The embodiment that the example of realizing together below by the rotary type assembly bench of one and Fig. 1 addresses these problems.

Fig. 9 is the square arrangement plan of explanation according to the electrical system of the parts that comprise the process display unit of one embodiment of the invention.Except the configuration shown in Fig. 4, the parts of this embodiment comprise that process display unit 22 is with one or more optical display as near foundation dish 1, and comprise display control section 21, be used for control procedure display unit 22 with show the information relevant with operating process, to the reading of the output signal of sensor 8, and control procedure display unit 22 makes the movement position information of display panel 1.Display control section 21 is connected with control circuit 12.

A plurality of process display units 22 are respectively pressed favourable angle setting, thereby can not only be seen by the personnel that work on dish 1, can also be seen by the personnel in other operational zone work.In addition, the part of process display unit 22 display screens has the touch screen district so that realize to show and the partial function of control panel 13 or help to be independent of the operation of demonstration and control panel 13.

Process display unit 22 is connected with display control section 21 and is controlled by the latter.That is to say that display control section 21 is the demonstration of the display screen of control procedure display unit 22 in real time, and in real time the operation of the touch screen of setting up in the part of coming comfortable this display screen input is read in the display control section 21.

Figure 10 is the process flow diagram that 12 pairs of processes of control circuit show the part of the control of carrying out.In order to explain this control flow simply, the technical requirement of the model that will assemble according to the next one on the dish 1 is carried out initial setting and is handled (S1).For example, if this model has the standard technique requirement at all models, then dish 1 velocity of rotation is set to and remains fixed on the standard speed.Has the technical requirement that the engine that contains the supplementary technology requirement is installed in requirement if suppose this model, and the engine fitting operation needs a large amount of man-hours, then carry out the initial setting of program at the moment, temporarily descend so that work as the velocity of rotation that transmits this engine hour indicator 1 from the assembly drainage area.If supposition is for the model of going through assembly work, the part that its technical requirement does not need that a part of fuel tank is installed, do not need to assemble a part of electric fittings or other parts, then can reduce the man-hour of this process, temporarily become higher thereby control program is set for the velocity of rotation that ought carry out this process hour indicator 1.

Read from show and the input data of control panel 13 and from the input data of the sensing 8 of dish 1 (S2, S3), and boot disk 1 rotation under its setting speed.When making operation when advancing like that, from showing and the input of control panel 13 is affirmation data from the workman by expectation.When the workman determines problem such as the delay that part or assembly transmit, can be from showing and control panel 13 is imported this.Then, control circuit 12 reads rotation position information from coiling 1 sensor 8, and confirm to rotate whether as one man occur with control in (S4, S5) to display control section 21 corresponding angle of rotation of output and positional informations (S6), and display control section 21 shows these information on the screen of process display unit 22.This is (S7) that carries out repeatedly before the official hour expiration, and generates a sign when this stipulated time expires, and shows this sign (S8) by display control section 21 on the screen of process display unit 22.This is (S9) that carries out repeatedly, up to the amount of plan of finishing the same day.

When process display unit 22 being adjusted to the dark what is said or talked about that the workman in the operation is provided convenience when showing, the workshop workman calls it " finding a place for (andon) ".Figure 11 is the control flow chart of display control section 21.When display control section 21 begins to operate, carry out the reading and setting of initial value (S11), and on process display unit 22, show they (S12).Then, read in sensor information (S13), and judge that this is for start-up control whether normal (S14).If normal, the process of display panel 1 (S15).If unusual, then show this unusual details (S16).The work of reading in starts the state (S17) of sign, if it is " work starts ", then demonstration work starts indication.Before finishing, the amount of plan on the same day this is shown repeatedly (S19) during each rotation period of dish 1.When the amount of hitting the target, show that this finishes (S20).

An example of process is controlled in the demonstration relevant with abnormal show shown in Figure 12.Wherein, utilize color coding to carry out abnormal show according to urgent level.In addition, in dish 1 situation of having stopped (S21), constitute the zone (S22) of the process of its origin cause of formation with red display, the corresponding stand-by time of AutoSum also shows (S23) to it, also shows the stop reason (S24) that is exclusively used in the origin cause of formation in addition.Than making dish 1 stop lower but need under call manager personnel's the abnormal conditions (S25),, and show the corresponding reason (S27) that causes calling in abnormal level with the yellow zone (S26) that constitutes its origin cause of formation that shows.In addition, in memory circuitry, store all these demonstrations (S28) with temporal information.If need to read in the operation of these records.

Figure 13 is an example of the displaying contents of process display unit 22.This screen is an example that is in steady state (SS) display screen of following time, the current angle of rotation of the diagram placing 1 that shows with circle in the left side.Numeral in circular is carried out the zone of process operation just therein.This circle is to fill shown in the green according to the angle of rotation of dish 1.The angle of rotation of dish 1, the perhaps state of progress of these operating process in other words, be under enough detailed level, to show, a rotation be divided into resulting certain angle of 60 equal parts (the perhaps moiety between 12 and 120) so that identify.In each field of screen right side, show " the plan unit of today ", " unit so far ", " assembly line total stop time ", " current model ", " structure time ", " capacity utilization " or the like.In these, " current model " is the coding that shows on the sign of so-called " Kanban system ".According to corresponding a plurality of letter and numbers, the workman who is carrying out various assembly manipulations can determine type or its details of operation of the part that will install.In each frame of following row, show and relevant character such as stop reason.In case occur just in these fields, showing unusually with redness.

Figure 14 carries out screen display under the situation of input operation from process display unit 22.When showing this screen, can operate and select displaying contents by the inside that utilizes the corresponding frame of Fingertip touch.Figure 15 is the demonstration example of the relevant status information of the time point that advances with operating process.By touching " menu " at upper right quarter, turn back to the menu screen that in Figure 14, shows as an example thereby can operate with finger.In case the 1 screen display example of selecting when stopping to appear for example coiling in Figure 16.

It should be noted that and to amplify the displaying contents shown in Figure 13, and it is projected on the screen of easily seeing the position installation that does not hinder operation in the workshop, thereby the workman of rotary type assembly bench or assembly drainage area can determine current situation easily.

Thereby in this embodiment, when the transfer rate of setting rolling disc 1 in variable mode (travelling speed or transport regularly), the workpeople can correctly determine this point, can carry out the rational time with very little waste and distribute, and make to operate and advance.As the result who uses this process display unit, each workman who processes can correctly determine total situation and complete operation, thereby, needn't receive indication one by one and just can optimize action, and reduce the processing stand-by time in general and improve operating efficiency.By using this parts, reduce the tired and raising operating efficiency of workman.According to this displaying contents, the workman can determine general status and operation is advanced.Automatically preserve displaying contents as the record in the database, this can be useful later when the troublesome problem that occurs in the process correctly solving the time.

Although in embodiment 1, explained above, also can carry out identical process demonstration to orthoscopic or the shaped form device that is used to transmit the example of plate-like article as conveyer.

Claims (18)

1. assembly bench that is used for goods comprises according to the conveyer of the progress travelling workpiece of process operation and depends on that the technical requirement of the workpiece that is transmitted sets the device of the transfer rate of this conveyer in variable mode.

2. the assembly bench of claim 1 comprises:

Be arranged near the one or more optical displays of this conveyer; And

Control the display control unit of the information that shows on this display device,

This display control unit comprises the unit that is used to read the movement position information of this conveyer and is used for showing this positional information on this display device.

3. the assembly bench of claim 2 comprises from the operating means of operation input is provided to this display control unit near this conveyer.

4. the assembly bench of claim 3 wherein is provided as the touch screen district of this operating means on the display screen of this display device.

5. the assembly bench of claim 2, wherein this display control unit comprises the unit that writes down the information that shows on a part of movement position information of this conveyer and this display device with temporal information together at least.

6. the assembly bench of claim 2, even wherein this display device is arranged on from the position of also seeing easily to the operational zone of this conveyer feeding parts or assembly, and this display control unit is included in the unit of display message on each display device, thereby the workman in the corresponding operating district can determine to prepare the start time of certain part or certain assembly and the technical requirement of this part that will prepare or assembly.

7. the assembly bench of claim 2, wherein this display device is equipped with the abnormal show district, and this display control unit comprises the device that shows stop reason when the operation accident of this conveyer stops in this abnormal show district.

8. the assembly bench of claim 1, wherein this setting device comprises the sensor unit of the position of detecting this conveyer and controls the transmit control unit of the speed of this conveyer according to the technical requirement information of the output information of this sensor unit and workpiece with programmable way.

9. the assembly bench of claim 1, wherein this conveyer is a plate-like, the workpiece of one or smallest number is set on this plate-like conveyer, and this conveyer is arranged so that executable operations is to the performance level of regulation during this conveyer roughly rotates once.

10. the assembly bench of claim 9, wherein this setting device comprises the sensor unit of the angle of rotation that detects this conveyer, with according to the output information of this sensor unit and the technical requirement information of workpiece, control the transmit control unit of the velocity of rotation of this conveyer with programmable way.

11. the assembly bench of claim 10, wherein this sensor unit comprises the rotation that detects this conveyer and the device of production burst information, and the output information of this sensor unit comprises the time integral value of its pulse information.

12. the assembly bench of claim 11 comprises a device that is used at this time integral value that resets with regard to the prior datum of setting of the angle of rotation of this conveyer.

13. the assembly bench of claim 10, wherein this transmit control unit comprises the device of setting its velocity of rotation according to the angle of rotation of conveyer.

14. the assembly bench of claim 9 wherein obtains the technical requirement information of workpiece from master unit.

15. the assembly bench of claim 8, wherein:

This conveyer comprises: the dish structure that workpiece can be installed thereon; Support the bearing of the central shaft of this dish; A plurality of from this dish following table top blast pressure-air and rise the air cushion of this dish; The motor that driving-disc rotates around its central shaft; And this motor supplied with the driving circuit of drive current, and

This setting device comprises the control circuit of the drive current of this driving circuit output of control.

16. assembly method that is used for goods, comprise: workpiece is set on assembly bench, when being sent on this assembly bench, the assembly manipulation of workpiece is advanced from the assembly drainage area handle component of setting up along the periphery of this assembly bench, and the assembly manipulation that carries out this workpiece between moving period in the regulation of this assembly bench is to the degree of regulation

Wherein control the movement velocity of this assembly bench in variable mode according to the technical requirement of workpiece.

17. the assembly method of claim 16, wherein this assembly bench is a plate-like, and controls the velocity of rotation of this plate-like assembly bench in variable mode.

18. a process display unit has one or more being positioned at according near the optical display the conveyer of the progress travelling workpiece of process operation,

Wherein this conveyer is set its transfer rate according to the technical requirement of the workpiece that is transmitted in variable mode,

This process display unit comprises the display control unit that is controlled at the information that shows on this display device, and

This display control unit comprises the unit that is used to read the movement position information of this conveyer and is used for showing this positional information on this display device.

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