CN102300790A

CN102300790A - Work holding and transfer device

Info

Publication number: CN102300790A
Application number: CN2009801559513A
Authority: CN
Inventors: 松本文吾
Original assignee: Hirata Corp
Current assignee: Hirata Corp
Priority date: 2009-01-29
Filing date: 2009-01-29
Publication date: 2011-12-28
Anticipated expiration: 2029-01-29
Also published as: JPWO2010086980A1; KR101307993B1; JP5385922B2; CN102300790B; KR20110099290A; WO2010086980A1

Abstract

A work holding and transfer device has a base (10) placed below a first conveyance line so that the base (10) can transfer work between the first conveyance line and a second conveyance line and can lift up and hold the work in order to apply predetermined processing to the work; a holding unit (20) vertically movably placed on the base and capable of holding the work; a transfer unit (30) vertically movably placed on the base and capable of transferring the work; and a vertical movement drive unit (40) placed on the base and vertically moving each of the holding unit and the transfer unit such that the unit extends and retracts at a predetermined timing relative to the first conveyance line. The construction enables a processing area and a common transfer area to be arranged in one area. In the processing area, predetermined processing is applied to the work, and in the common transfer area, the work is transferred from the first conveyance line to the second conveyance line and vice versa. The construction simplifies a facility, reduces the space for installing the work holding and transfer device, and improves productivity.

Description

Workpiece keeps transfer device

Technical field

The present invention relates to a kind of workpiece and keep transfer device, this workpiece keeps transfer device to remain on processing station (Japanese: carry out predetermined process processing ステ one シヨ Application), and repairing the handover of carrying out workpiece between line and the main transfer line when substandard products occurring at the workpiece that will utilize main transfer line carrying on the manufacturing line of component of machine and electronic machine etc.

Background technology

On the manufacturing line of existing mechanical parts and electronic machine etc., as shown in Figure 1, the workpiece W that utilizes main transfer line ML to carry is stopped at handle on the station WS and carry out predetermined process.In addition, adopt following method: when workpiece W is non-defective unit (certified products), utilize main transfer line ML this workpiece W to be carried to the subsequent processing in downstream, and when workpiece W is substandard products (off gauge), utilizing transfer device TM1 that this workpiece W is transferred to is positioned at than the carrying face of the main transfer line ML boost line of high position (Japanese: SL and it is carried to repairs station RS サ Block ライ Application) more, behind the dressing operation that has carried out regulation, utilize the transfer device TM2 to make workpiece be back to main transfer line ML once more and it is carried to the subsequent processing in downstream.

At this, as existing transfer device TM1, TM2, known have a following conveying branch unit, this conveying with branch unit comprise base, being supported to can be with respect to the lifting frame of base free lifting, the transfer unit of being located at the lifting frame, driving motor, free-wheel clutch and cam mechanism etc., it can utilize just changeing of driving motor to make cam mechanism work carry out the action of lifting of workpiece W, and can utilize the counter-rotating of driving motor to make transfer unit work workpiece W be taken out of (for example patent documentation 1).

In addition, as other transfer device TM1, TM2, known have a following conveying transfer device, this conveying transfer device comprises a driving motor, the closed chain that can keep workpiece W, supply closed chain to open two sprocket wheels establishing and drive its rotation and be supported to and make the eccentric capacity eccentric bearing that rotates of sprocket wheel etc., when driving motor is just being changeed, the eccentric rotation of capacity eccentric bearing and sprocket wheel, thereby closed chain is risen, workpiece W is kept and takes out of, on the contrary, when making the driving motor counter-rotating, the eccentric in the opposite direction rotation of capacity eccentric bearing and sprocket wheel is so that closed chain descends when workpiece W is moved into and transfers (for example patent documentation 2).

Yet, in above-mentioned existing manufacturing line, WS only carries out predetermined process at the processing station, for the workpiece W with substandard products transfers to boost line SL or takes over the workpiece W that has repaired, be provided with special-purpose transfer device TM1, TM2, in addition, boost line SL links with the transfer device TM2 that is positioned at processing station WS upstream side via repairing station RS from transfer device TM1.Therefore, equipment complexity, and the area that is provided with of equipment becomes big in addition, from workpiece W is sent to repairing station RS that to be moved into the required time of main transfer line ML once more to the workpiece W that has repaired elongated, thereby is difficult to increase productivity.

Patent documentation 1: Japanese patent laid-open 07-315562 communique

Patent documentation 2: Japanese Utility Model is registered communique No. 3022763

Disclosure of an invention

Invent technical matters to be solved

The present invention is based on the problems referred to above point and do, its purpose is to provide a kind of workpiece to keep transfer device, this workpiece keeps transfer device can not only realize the simplification of the simplification of equipment, structure, space savingization etc., especially can also shorten to repair and carry the required time, thereby capacity rating is improved.

The technical scheme that the technical solution problem is adopted

The workpiece of the present invention of realizing above-mentioned purpose keep transfer device can first transfer line with second transfer line adjacent with first transfer line mode of intersecting between workpiece is transferred and in order to carry out predetermined process, workpiece can be lifted and keeps from first transfer line, above-mentioned workpiece keeps transfer device to comprise: base, and this base is arranged on the below of first transfer line; Holding unit, this holding unit are configured to free lifting and come workpiece is kept on base; Transfer unit, this transfer unit are configured to free lifting and come workpiece is transferred on base; And the lifting driver element, this lifting driver element is set on the base, and respectively the regulation the moment can drive holding unit and transfer unit lifting with respect to the mode that first transfer line freely haunts.

According to said structure, be held the unit when utilizing workpiece that first transfer line carrying comes above the base that arrives this device and lift and keep, carry out predetermined process by the operator.Then, the non-defective unit of finishing after the processing (certified products) returns first transfer line and side carrying towards downstream by the decline of holding unit.On the contrary, substandard products (off gauge) are transferred to transfer unit by the decline of holding unit, and are transferred to second transfer line.Then, the workpiece that utilizes second transfer line will finish behind the dressing operation of regulation is moved into, and by transfer unit it is transferred to side carrying towards downstream behind first transfer line.

Like this, as long as being set, a workpiece keeps transfer device, just can guarantee workpiece is carried out the processing region of predetermined processing, and can guarantee to carry out from first transfer line to the handover of second transfer line and from the shared handover zone of second transfer line to the handover of first transfer line.Consequently, can realize the simplification of equipment, the space savingization that area is set, the raising of capacity rating etc.

In said structure, can adopt following structure: holding unit comprises the maintenance platform, this maintenance platform is being kept workpiece in the lifting by the lifting drive unit drives, transfer unit comprises a pair of handover movable body, this a pair of handover movable body is configured in and clips two outsides that keep platform, and workpiece is being transferred in the lifting by the lifting drive unit drives.

According to said structure, because the maintenance platform of holding unit and a pair of handover movable body of transfer unit are configured to nested shape (Japanese: go into れ shape) and are driven into lifting relatively, therefore, with guarantee spacial situation respectively and compare, energy implementation space savingization, and can make equipment miniaturization.

In said structure, can adopt following structure: holding unit comprises maintenance platform, shank and engagement section, wherein, above-mentioned maintenance platform keeps workpiece, above-mentioned shank extends towards the below from keeping platform, and guided by base can free lifting, and above-mentioned engagement section engages with the lifting driver element bears the lifting propulsive effort; Transfer unit comprises a pair of handover movable body, driver train, maintenance frame and engagement section, wherein, above-mentioned a pair of handover movable body is configured in and clips two outsides that keep platform, above-mentioned driver train drives a pair of handover movable body or workpiece is pushed driving, above-mentioned maintenance frame keeps a pair of handover movable body and driver train, and above-mentioned engagement section is located at and is kept frame and engage with the lifting driver element bearing the lifting propulsive effort.

According to said structure, in holding unit, when utilizing the lifting driver element to apply the lifting propulsive effort via the engagement section, shank is guided the energy free lifting by base, and the maintenance platform rises and workpiece is kept, and keeps platform decline and leaves workpiece.

In addition, in transfer unit, when utilizing the lifting driver element to apply the lifting propulsive effort via the engagement section, a pair of handover movable body rises workpiece is kept, and utilizes the driving of driver train to carry out the transfer movement of workpiece.At this, can use a pair of roller group or a pair of endless belt etc. as a pair of handover movable body, the mechanism of energy a pair of roller group of application drives or the rotation of a pair of endless belt is as driver train, or be under the situation of the revolution roller that only rolls in a pair of roller group, can use mechanism that workpiece is pushed as driver train.

Like this, because holding unit is by keeping platform, shank and engagement section to constitute, transfer unit is made of a pair of handover movable body, driver train, maintenance frame, therefore, the simplification of energy implementation structure, in addition, owing to keep platform to be configured to the energy free lifting in the inboard of a pair of handover movable body, therefore, can make equipment miniaturization because of the centralization of parts.

In said structure, can adopt following structure: transfer unit comprises through-hole section, and this through-hole section is located at and is kept frame to run through for shank, and through-hole section forms utilizes shank will keep frame to guide the portion that is directed to of energy free lifting.

According to said structure,, therefore, do not need transfer unit to be guided the special-purpose guiding mechanism of energy free lifting, thereby can make designs simplification because of the minimizing of part number because through-hole section is guided the energy free lifting as being directed to portion by shank.

In said structure, can adopt following structure: a pair of handover movable body keeps a pair of roller group of frame to constitute by being disposed at, driver train comprises propulsive effort transfer part and drive source, wherein, above-mentioned propulsive effort transfer part is passed to a pair of roller group with rotary driving force, and above-mentioned drive source is fixed in and keeps frame and the propulsive effort transfer part is applied rotary driving force.

According to said structure, can not only utilize and keep frame to make a pair of roller group, propulsive effort transfer part and drive source one lifting, and, drive source drives power can drive a pair of roller group rotation via propulsive effort transfer part (for example gear cluster, closed chain or endless belt, binding are positioned at the connection shaft etc. of the roller of both sides), transfers workpiece thus.

In said structure, can adopt following structure: the lifting driver element comprises rotating shaft, keeps with cam, transfers with cam and driving motor, wherein, above-mentioned rotating shaft is become and can freely rotate by base support, above-mentioned maintenance applies camming action with the rotation of cam and rotating shaft one and to the engagement section of holding unit, above-mentioned handover applies camming action with the rotation of cam and rotating shaft one and to the engagement section of transfer unit, and above-mentioned driving motor drives the rotating shaft rotation.

According to said structure, utilize driving motor that rotating shaft is suitably rotated, thereby can utilize the camming action that keeps with cam to make the lifting of maintenance platform, or utilize the camming action of transferring with cam to make the lifting of a pair of handover movable body respectively in the moment of hope.

At this, keep with cam and transfer both can be respectively forming by the cam member of special use with cam, also can adjacently form a cam member.

As mentioned above, because the lifting driver element is made of cam mechanism, therefore, need only the rotation of controlling and driving electrical motor, the moment lifting that holding unit (maintenance platform) and transfer unit (a pair of handover movable body) are being stipulated respectively.

In said structure, can adopt following structure: handover becomes with cam-shaped draws as bottom profiled, utilize the just commentaries on classics of rotating shaft, make a pair of handover movable body rise to the handover stop position that can keep and transfer workpiece of first transfer line top from the non-handover stop position of workpiece not being transferred of first transfer line below, and utilize the counter-rotating of rotating shaft, make a pair of handover movable body drop to non-handover stop position from transferring stop position; Maintenance becomes with cam-shaped draws as bottom profiled, utilize the just commentaries on classics of rotating shaft, make and keep platform to rise to the maintenance stop position that workpiece is kept of transferring the stop position top via the intermediate stop position of transferring the stop position below from the non-maintenance stop position that workpiece is not kept of first transfer line below, and utilize the counter-rotating of rotating shaft, make to keep platform to drop to non-maintenance stop position via intermediate stop position from keeping stop position.

According to said structure, when rotating shaft is just changeed predetermined angular, a pair of handover movable body rises to from non-handover stop position and transfers stop position and workpiece is held in and can transfers, and, keep platform to rise to intermediate stop position from non-maintenance stop position, when rotating shaft is further just being changeed predetermined angular, rest under the state of transferring stop position at a pair of handover movable body, keep platform to rise to and keep stop position to come workpiece is kept.On the contrary, keeping platform to be under the state that keeps stop position, when rotating shaft counter-rotating predetermined angular, keep platform to descend and workpiece transferred to being positioned at a pair of handover movable body of transferring stop position, when predetermined angular is further reversed in rotating shaft, a pair of handover movable body drops to non-handover stop position workpiece is transferred to first transfer line, and keeps platform to drop to non-maintenance stop position.Like this, only by the just commentaries on classics and the counter-rotating of rotating shaft, the moment lifting that just can make a pair of handover movable body and keep platform stipulating respectively.

In said structure, can adopt following structure: maintenance becomes with cam-shaped draws as bottom profiled, utilize the just commentaries on classics of rotating shaft, make the maintenance stop position that workpiece is kept that keeps platform to rise to first transfer line top from the non-maintenance stop position that workpiece is not kept of first transfer line below, and utilize the counter-rotating of rotating shaft, make to keep platform to drop to non-maintenance stop position from keeping stop position; Handover becomes with cam-shaped draws as bottom profiled, utilize the just commentaries on classics of rotating shaft, make a pair of handover movable body rest on the non-handover stop position of workpiece not being transferred of first transfer line below, and, utilize the counter-rotating of rotating shaft, keeping after platform drops to non-maintenance stop position, making a pair of handover movable body rise to the handover stop position that can keep and transfer workpiece of first transfer line top.

According to said structure, when rotating shaft is just changeed, rest under the state of non-handover stop position at a pair of handover movable body, keep platform to rise to and keep stop position to come workpiece is kept from non-maintenance stop position.On the contrary, keeping platform to be in the state that keeps stop position, when rotating shaft counter-rotating predetermined angular, keep platform decline and workpiece is transferred to first transfer line, when predetermined angular is further reversed in rotating shaft, after the maintenance platform dropped to non-maintenance stop position, a pair of handover movable body rose to the handover stop position from non-handover stop position workpiece is held in and can transfers.Like this, only by the just commentaries on classics and the counter-rotating of rotating shaft, the moment lifting that just can make a pair of handover movable body and keep platform stipulating respectively.

In said structure, can adopt following structure: the lifting driver element comprises the maintenance actuator, transfers with actuator and control element, wherein, above-mentioned maintenance is fixed in base and the engagement section of holding unit is applied the lifting propulsive effort with actuator, above-mentioned handover is fixed in base and the engagement section of transfer unit is applied the lifting propulsive effort with actuator, and above-mentioned control element is to keeping with actuator and transferring and carry out drive controlling with actuator.

According to said structure, utilize the lifting that keeps with actuator to drive, can make to keep the platform lifting, in addition, utilize the lifting of transferring with actuator to drive, can make the lifting of a pair of handover movable body.

As mentioned above, owing to the lifting driver element is made of actuator mechanism, therefore, and as long as utilize control element to control the driving of actuator, the moment lifting that holding unit (maintenance platform) and transfer unit (a pair of handover movable body) are being stipulated respectively.For example, control element can carry out following control: keep platform to be positioned at the maintenance stop position that workpiece is kept of the non-maintenance stop position that workpiece is not kept of first transfer line below and first transfer line top in order to make, carry out drive controlling to keeping with actuator, in order to make a pair of handover movable body be positioned at the handover stop position that can keep and transfer workpiece of the non-handover stop position of workpiece not being transferred of first transfer line below and first transfer line top, carry out drive controlling to transferring with actuator, by this, when workpiece being kept with the maintenance platform, utilize the rising that keeps with actuator to drive, the maintenance platform is risen to from non-maintenance stop position keeps stop position to come workpiece is kept, and when workpiece is transferred, the rising of utilize transferring with actuator drives, and a pair of handover movable body is risen to from non-handover stop position transfer stop position and workpiece is held in and can transfers.

Like this, as long as utilize control element to keeping with actuator and transferring and carry out drive controlling, the moment lifting that just can make a pair of handover movable body and keep platform stipulating respectively with actuator.

The invention effect

Keep transfer device according to workpiece with said structure, can make and carry out the processing region of predetermined processing and transfer the zone shared workpiece, can not only realize simplification, space-savingization of simplification, the structure of equipment etc., especially can also shorten to repair and carry the required time, thereby capacity rating is improved.

Description of drawings

Fig. 1 is the birds-eye view of the existing manufacturing line of expression.

Fig. 2 is that expression is provided with the birds-eye view that workpiece of the present invention keeps the manufacturing line of transfer device.

Fig. 3 is on manufacturing line shown in Figure 2, in the zone that is provided with workpiece maintenance transfer device main transfer line is carried out side cross sectional view.

Fig. 4 is the block diagram that expression workpiece of the present invention keeps an embodiment of transfer device.

Fig. 5 is the lateral plan that expression workpiece of the present invention keeps an embodiment of transfer device.

Fig. 6 is the part sectional view that expression workpiece of the present invention keeps an embodiment of transfer device.

Fig. 7 is the partial perspective view that expression workpiece of the present invention keeps an embodiment of transfer device.

Fig. 8 is that expression workpiece of the present invention keeps the included maintenance of transfer device to use the lateral plan of the action of cam with cam and handover.

Fig. 9 is that expression keeps the maintenance of the part of the included lifting driver element of transfer device to use the figure of the profile of cam with cam and handover as workpiece of the present invention.

Figure 10 A is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 10 B is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 10 C is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 11 A is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 11 B is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 11 C is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 12 A is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 12 B is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 12 C is that explanation workpiece of the present invention keeps the action diagram of the action of transfer device.

Figure 13 is that expression workpiece of the present invention keeps maintenance in another embodiment of transfer device with cam and transfer lateral plan with the action of cam.

Figure 14 A is that maintenance shown in Figure 13 keeps the action of transfer device with the workpiece of cam with cam and handover action diagram has been used in explanation.

Figure 14 B is that maintenance shown in Figure 13 keeps the action of transfer device with the workpiece of cam with cam and handover action diagram has been used in explanation.

Figure 14 C is that maintenance shown in Figure 13 keeps the action of transfer device with the workpiece of cam with cam and handover action diagram has been used in explanation.

Figure 15 A is that maintenance shown in Figure 13 keeps the action of transfer device with the workpiece of cam with cam and handover action diagram has been used in explanation.

Figure 15 B is that maintenance shown in Figure 13 keeps the action of transfer device with the workpiece of cam with cam and handover action diagram has been used in explanation.

Figure 15 C is that maintenance shown in Figure 13 keeps the action of transfer device with the workpiece of cam with cam and handover action diagram has been used in explanation.

Figure 16 is the lateral plan that expression workpiece of the present invention keeps the another embodiment of transfer device.

Figure 17 is the birds-eye view of another embodiment that the manufacturing line of Workpiece transfer device of the present invention has been used in expression.

Figure 18 is the birds-eye view of another embodiment that the manufacturing line of Workpiece transfer device of the present invention has been used in expression.

Figure 19 A is that the workpiece in the explanation manufacturing line shown in Figure 180 keeps the action diagram of the action of transfer device and main transfer line.

Figure 19 B is that the workpiece in the explanation manufacturing line shown in Figure 180 keeps the action diagram of the action of transfer device and main transfer line.

Figure 19 C is that the workpiece in the explanation manufacturing line shown in Figure 180 keeps the action diagram of the action of transfer device and main transfer line.

Figure 20 A is that the workpiece in the explanation manufacturing line shown in Figure 180 keeps the action diagram of the action of transfer device and main transfer line.

Figure 20 B is that the workpiece in the explanation manufacturing line shown in Figure 180 keeps the action diagram of the action of transfer device and main transfer line.

Figure 20 C is that the workpiece in the explanation manufacturing line shown in Figure 180 keeps the action diagram of the action of transfer device and main transfer line.

(nomenclature)

ML master's transfer line (first transfer line)

ML ' is cut apart transfer line

The ML1 base portion

The ML2 shank

The ML3 frame

ML4 roller group

Sm carries face

SL boost line (second transfer line)

The SL1 base portion

The SL2 shank

The SL3 frame

SL4 roller group

Ss carries face

RS, RS ' repair station (repair station)

The W workpiece

The M workpiece keeps transfer device

The carrying direction of T1 master's transfer line

The L axis

The V above-below direction

The carrying direction of T2 boost line

The carrying face height and position of Po master's transfer line

The non-maintenance stop position of P1

The Pm intermediate stop position

P2 keeps stop position

The non-handover stop position of P3

P4 transfers stop position

10,10 ' base

11 base stations

12 sidewalls

The 12a knock hole

13 upper walls

The 13a circular open

The 13b through hole

14 guide cylinders

The 14a cap

14b cylinder guide part

20,20 ' holding unit

21,21 ' keeps platform

The 21a location division

22 shanks

23 dip portion

24 driven members (engagement section)

24 ' engagement section

25 strip component

The 25a knock hole

25b bar locating part

30,30 ' transfer unit

31 a pair of roller groups (a pair of handover movable body)

The 31a connection shaft

32 driver trains

The 32a driving motor

The 32b transfer part

33,33 ' keeps frame

The 33a through hole

The 33b peristome

34 through-hole section (being directed to portion)

35 dip portion

36 driven members (engagement section)

36 ' engagement section

37 strip component

The 37a knock hole

40 lifting driver elements

41 rotating shafts

The 41a detection lug

42,42 ' keeps using cam member

42a, 42a ' keep using cam

A1, A2, A3, A4 cam region

The 42b limiting member

43,43 ' handover cam member

43a, 43a ' transfer and use cam

B1, B2, B3 cam region

44 driving motors

45,46,47,48 position transdusers

50 stopper mechanisms

51 locating parts

52 drive actuator

140 lifting driver elements

142 keep using actuator

143 handover actuators

The specific embodiment

Below, with reference to accompanying drawing embodiments of the present invention are described.

As shown in Figures 2 and 3, comprise with workpiece W towards the main transfer line ML as first transfer line of carrying direction T1 carrying, with the mode disposed adjacent (Japanese: O connects) of intersecting with main transfer line ML and with workpiece W towards the boost line SL of carrying direction T2 carrying and be disposed on the manufacturing line of reparation station RS, RS ' etc. of boost line SL end regions, this workpiece maintenance transfer device M is configured in main transfer line ML upward and boost line SL adjacent areas.

At this, as shown in Figure 3, main transfer line ML comprises base portion ML1, shank ML2, frame ML3 and roller group ML4 etc., wherein, above-mentioned base portion ML1 extends on carrying direction T1, and above-mentioned shank ML2 vertically erects on base portion ML1, above-mentioned frame ML3 is supported by shank ML2, and on carrying direction T1, extend, above-mentioned roller group ML4 is supported by frame ML3, and forms carrying face Sm.

In addition, as shown in Figure 3, boost line SL comprises base portion SL1, shank SL2, frame SL3 and roller group SL4 etc., wherein, above-mentioned base portion SL1 extends on carrying direction T2, and above-mentioned shank SL2 vertically erects on base portion SL1, above-mentioned frame SL3 is supported by shank SL2, and on carrying direction T2, extend, above-mentioned roller group SL4 is supported by frame SL3, and forms the carrying face Ss that is positioned at the position higher than the carrying face Sm of main transfer line ML.

In addition, as workpiece W, be comprise by main transfer line ML directly carrying carry out the parts of the machinery of predetermined processing or electronic machine etc. and in mounting in carriage (Japanese: carried the parts of the machinery that carries out predetermined processing or electronic machine etc. in interior notion by main transfer line ML under state トレイ).

Extremely shown in Figure 7 as Fig. 3, workpiece keeps transfer device M to comprise base 10, holding unit 20, transfer unit 30, lifting driver element 40 and stopper mechanism 50 etc., wherein, above-mentioned base 10 is arranged on main transfer line ML below, above-mentioned holding unit 20 is configured to free lifting and workpiece W is kept on base 10, above-mentioned transfer unit 30 is configured to free lifting and workpiece W is transferred on base 10, above-mentioned lifting driver element 40 is located on the base 10, and driving holding unit 20 and transfer unit 30 liftings in the moment of regulation in the mode of freely haunting respectively with respect to main transfer line ML (carrying face Sm), above-mentioned stopper mechanism 50 stops workpiece W.

To shown in Figure 7, base 10 comprises base station 11, two sidewalls 12, upper wall 13 and four guide cylinders 14 etc. as Fig. 3.

Base station 11 forms tabular in the form of a substantially rectangular as shown in Figure 7, and mounting positions fixing on the base portion ML1 of main transfer line ML as shown in Figure 3.By this, the special-purpose part that is provided with need not be set on the ground, device M is easily positioned with respect to main transfer line ML.

As Figure 6 and Figure 7, two sidewalls 12 erect in mode respect to one another on axis L direction with separating predetermined distance and are arranged on the base station 11, have the knock hole 12a that passes for bar locating part 25b described later, and the rotating shaft 41 of lifting driver element 40 can be supported to freely and rotate.

As shown in Figure 5,12 pairs of a plurality of (is four at this) position transdusers 45,46,47,48 that detect the rotary angle position of rotating shaft 41 of a sidewall are fixed.

As shown in Figure 7, upper wall 13 forms outline tabular in the form of a substantially rectangular, and combines with the upper surface of two sidewalls 12.In addition, upper wall 13 comprises: circular open 13a, this circular open 13a are formed at the position relative with four guide cylinders 14; And the through hole 13b of rectangle, this through hole 13b is formed at the position, two places on the diagonal line roughly.

As shown in Figure 5, four guide cylinders 14 are made of the cap 14a and the cylinder guide part 14b of essentially rectangular, wherein, above-mentioned cap 14a is located between base station 11 and the upper wall 13, above-mentioned cylinder guide part 14b is disposed at the inboard of cap 14a, and goes up the guide path cylindraceous that extends with the circular open 13a of upper wall 13 is chimeric to be formed on above-below direction V.In addition, four guide cylinders 14 are by becoming shank 22 folding and unfoldings of holding unit 20 can lead by free lifting with cylinder guide part 14b.

Like this, chimeric and fixing respectively by the circular open 13a that makes four cylinder guide part 14b and upper wall 13, can adjust squareness (parallelism each other) separately thus accurately.

Holding unit 20 is for workpiece W is carried out the member that predetermined processing is lifted workpiece W and keep, extremely shown in Figure 7 as Fig. 4, above-mentioned holding unit 20 comprises maintenance platform 21, four shanks 22, two dip portion 23, as two driven members 24 of engagement section and two strip component 25 etc., wherein, above-mentioned maintenance platform 21 tabular in the form of a substantially rectangular, but above-mentioned shank 22 leads from keeping platform 21 and extending towards the below and be directed to tube 14 free lifting ground, above-mentioned dip portion 23 formed from sagging (separating predetermined distance in axis L direction) near the both ends of the axis L direction that keeps platform 21, above-mentioned driven member 24 is configured to rotate freely around the horizontal axis parallel with axis L in the lower end area of dip portion 23, and above-mentioned strip component 25 is extended towards the below from the two corner portions that keep platform 21.

Keep platform 21 to comprise four location division 21a, these location divisions 21a enters workpiece W (knock holees of the knock hole of part or falsework etc.) workpiece W is located in the horizontal direction.

Shank 22 forms rounded shaft-like in cross section, is led by free lifting ground thereby can insert guide cylinder 14 with being free to slide.

As shown in Figure 3, dip portion 23 forms from the following table faced downwards that keeps platform 21 extends specified length, and keeps driven member 24 in its lower end area.

As shown in Figure 7, driven member 24 forms the maintenance that can have with lifting driver element 40 and contacts with cam (camming surface) 42a with the maintenance of cam member 42 with rotating freely, thereby is subjected to making the camming action of its lifting on above-below direction V.

Strip component 25 forms the cross section in the form of a substantially rectangular, and runs through the maintenance frame 33 (through hole 33a) of transfer unit 30 and the through hole 13b of upper wall 13.In addition, as Fig. 5 and shown in Figure 6,, be formed with three knock hole 25a in mode on above-below direction V on the strip component 25 across predetermined distance for the bar locating part 25b for the knock hole 12a that passes sidewall 12 passes.

In addition, when bar locating part 25b passes the knock hole 25a of three tops among the knock hole 25a, keep platform 21 to be positioned on the non-maintenance stop position of carrying face Sm below of main transfer line ML, when bar locating part 25b passes middle knock hole 25a, keep platform 21 to be positioned on the intermediate stop position of the carrying face Sm below of main transfer line ML, non-maintenance stop position top, when bar locating part 25b passes the knock hole 25a of below, keep platform 21 to be positioned on the maintenance stop position of carrying face Sm top.

In above-mentioned holding unit 20, when utilizing lifting driver element 40 to apply the lifting propulsive effort via driven member 24, shank 22 is guided by base 10 (guide cylinder 14) can free lifting, when keeping platform 21 to rise workpiece W is kept thus, and break away from workpiece W when keeping platform 21 to descend.

As mentioned above, because holding unit 20 is by keeping formations such as platform 21, shank 22 and driven member (engagement section) 24, therefore, simplification that can implementation structure and the miniaturization of device M.In addition, in order easily workpiece W to be carried out predetermined process (operation), keeping platform 21 also can comprise can the bevelled leaning device.

Extremely shown in Figure 7 as Fig. 4, transfer unit 30 comprises a pair of roller group 31, driver train 32, the flat maintenance frame 33 of essentially rectangular, four through-hole section 34, two dip portion 35, two driven members 36 and two strip component 37 etc., wherein, above-mentioned a pair of roller group 31 is as a pair of handover movable body, be configured in and clip two outsides that keep platform 21, above-mentioned driver train 32 drives a pair of roller group 31 rotations, 33 pairs of a pair of roller groups 31 of above-mentioned maintenance frame and driver train 32 keep, above-mentioned four through-hole section 34 are as being directed to portion, be located at and keep frame 33 with being free to slide so that shank 22 can pass, above-mentioned two dip portion 35 are from keeping frame 33 sagging, and on axis L direction, separate predetermined distance ground and form, above-mentioned two driven members 36 are as the engagement section, lower end area in dip portion 35 is configured to rotate freely, and above-mentioned two strip component 37 are extended towards the below from the two corner portions that keep frame 33.

Roller group 31 comprises four rollers, respectively with the integrally formed sprocket wheel of these four rollers on the closed chain of reeling, drive to transmit rotation, in addition, above-mentioned roller group 31 forms when rotary driving force is passed to the roller group 31 of side's side, and this rotary driving force is passed to the roller group 31 of the opposing party's side via connection shaft 31a.

Driver train 32 comprises driving motor 32a and transfer part 32b etc., wherein, roller group 31 disposed adjacent of above-mentioned driving motor 32a and side's side, above-mentioned transfer part 32b utilizes driving motor 32a to transmit rotary driving force.

As shown in Figure 4, keep frame 33 to have: two through hole 33a, these two through hole 33a pass with supplying strip component 25 free liftings; And two peristome 33b, these two peristome 33b pass with supplying driven member 24 and dip portion 23 free liftings.

As Fig. 4 and shown in Figure 5, through-hole section 34 forms shank 22 folding and unfoldings are become the embedded hole that can be free to slide on above-below direction V, and plays so that the effect of the portion that is directed to that transfer unit 30 is directed with respect to the mode of holding unit 20 relative liftings.

As Fig. 4 and shown in Figure 7, dip portion 35 forms the nearby sagging and extension specified length from the both ends of the axis L direction that keeps frame 33, and in its lower end area driven member 36 is held in and can rotates freely around the horizontal axis parallel with axis L.

As shown in Figure 8, driven member 36 forms the handover that can have with lifting driver element 40 and contacts with cam (camming surface) 43a with the handover of cam member 43 with rotating freely, thereby is subjected to making the camming action of its lifting on above-below direction V.

Strip component 37 forms the cross section in the form of a substantially rectangular, and is adjacent to run through the through hole 13b of upper wall 13 with the strip component 25 of holding unit 20.In addition, as Fig. 5 and shown in Figure 6,, be formed with two knock hole 37a in mode on above-below direction V on the strip component 37 across predetermined distance for the bar locating part 25b for the knock hole 12a that passes sidewall 12 passes.

In addition, when bar locating part 25b passes the knock hole 37a of two tops among the knock hole 37a, roller group 31 is positioned on the non-handover stop position of carrying face Sm below of main transfer line ML, when bar locating part 25b passed the knock hole 37a of below, roller group 31 was positioned on the handover stop position of carrying face Sm top.

In above-mentioned transfer unit 30, when utilizing lifting driver element 40 to apply the lifting propulsive effort via driven member 36, a pair of roller group 31 rises and workpiece W is kept, and utilizes the rotation of driver train 32 to drive the transfer movement that carries out workpiece W.

As mentioned above, because transfer unit 30 is made of a pair of roller group 31, driver train 32, maintenance frame 33 etc. with through-hole section 34, therefore, the simplification of energy implementation structure, in addition, because transfer unit 30 can be configured to nested shape in the mode of the inboard free lifting of a pair of roller group 31 to keep platform 21, therefore, can pass through the miniaturization of the centralization implement device of part.

In addition,, adopt a pair of roller group 31, replace a pair of roller group 31 but also can adopt a pair of ring-type to bring as a pair of handover movable body at this.In addition, be the revolution roller that only rolls (Japanese: under situation Swam translocation ロ one ラ), also can be adopted as the mechanism's (pressing mechanism etc.) that workpiece W is extruded or be pressed into and push driving and be used as driver train on carrying direction T2 in a pair of roller group.

This be because, in the structure that comprises above-mentioned holding unit 20 and transfer unit 30, not when normal operation, but when carrying out specific operation such as upkeep operation, use bar locating part 25b to position, remain on ad-hoc location on the above-below direction V with the roller group 31 that will keep platform 21 and transfer unit 30.

As Fig. 4, Fig. 5, shown in Figure 7, lifting driver element 40 comprises rotating shaft 41, four

position transdusers

45,46,47,48 that detect with the rotary angle position of cam member 43, driving motor 44 that driving rotating shaft 41 is rotated, countershaft 41 with cam member 42, with two handovers of rotating shaft 41 one rotation with two maintenances of rotating shaft 41 one rotations and the control element (not shown) that plays various drive controlling etc.

As Fig. 4 and shown in Figure 7, rotating shaft 41 forms has the axis L that extends in the horizontal direction, and is supported to and can freely rotates by two sidewalls 12 of base 10.In addition, as shown in Figure 5, rotating shaft 41 comprises detection lug 41a, and this detection lug 41a can rotate in one end and rotating shaft 41 one, thereby can be approaching and relative with four position transdusers 45～48 respectively.

Two maintenances separate the predetermined distance configuration and are fixed in rotating shaft 41 with cam member 42 on axis L direction, it has respectively: keep using cam 42a, this maintenance contacts with the driven member 24 of holding unit 20 with cam 42a and applies camming action; And limiting member 42b, this limiting member 42b prevents that holding unit 20 from dropping to and is lower than specified altitude.

As Fig. 8 and shown in Figure 9, maintenance forms with cam 42a and draws as bottom profiled: the just commentaries on classics by rotating shaft 41 (is left-hand revolution among Fig. 5, among Fig. 8 clickwise), make and keep the non-maintenance stop position P1 that not keep workpiece W of platform 21 from main transfer line ML below, via the intermediate stop position Pm that transfers the handover stop position P4 below that stops with cam 43a because of aftermentioned, rise to the maintenance stop position P2 that workpiece W is kept that transfers stop position P4 top, and the counter-rotating by rotating shaft 41 (is clickwise among Fig. 5, be left-hand revolution among Fig. 8), make to keep platform 21 to drop to non-maintenance stop position P1 via intermediate stop position Pm from keeping stop position P2.

As shown in Figure 9, keep constituting by aftermentioned (10 place) cam region A1～A10 with the profile of cam 42a.That is, cam region A1～A10 is respectively:

A1: be equivalent to the nearby part in zone of non-maintenance stop position P1, in the angular range of regulation, form the cam height of almost fixed, and the slow cam region that tilts;

A3: be equivalent to the nearby regional part of carrying face height and position Po of main transfer line ML, in the angular range of regulation, form the cam height of almost fixed, and the cam region that tilts and delay;

A5: be equivalent to the nearby part in zone of intermediate stop position Pm, in the angular range of regulation, form the cam height of almost fixed, and the slow cam region that tilts;

A7: be equivalent to transfer the nearby part in zone of stop position P2, in the angular range of regulation, form the cam height of almost fixed, and the slow cam region that tilts;

A9: be equivalent to keep the nearby part in zone of stop position P2, in the angular range of regulation, form the cam height of almost fixed, and the slow cam region that tilts;

A2: between cam region A1 and cam region A3, form continuously with cam region A1 and cam region A3, and the steeper cam region that tilts;

A4: between cam region A3 and cam region A5, form continuously with cam region A3 and cam region A5, and the steeper cam region that tilts;

A6: between cam region A5 and cam region A7, form continuously with cam region A5 and cam region A7, and the steeper cam region that tilts;

A8: between cam region A7 and cam region A9, form continuously with cam region A7 and cam region A9, and the steeper cam region that tilts;

A10: A9 is continuous with cam region, and forms the cam region of fixing cam height in the angular range of regulation.

In addition, holding unit 20 begins to carry out following action: rise (or the decline) of slowly slowing down in cam region A1, A3, A5, A7, A9, stop and being positioned on position P1, Po, Pm, P4, the P2, or in cam region A1, A3, A5, A7, A9, slowly quicken rise (or decline).

When keeping making holding unit 20 when keeping the approaching non-maintenance stop position P1 of stop position P2 with cam member 42 counter-rotatings, limiting member 42b is on (P1, P3's) angle position of Fig. 8, with the lower surface butt that keeps frame 33, limit maintenance frame 33 and further descend.

Two handovers are disposed at two maintenances with the outside of cam member 42 and be fixed in rotating shaft 41 with cam member 43 with separating predetermined distance on axis L direction, it has respectively with the driven member 36 of transfer unit 30 and contacts the handover that applies camming action cam 43a.

As Fig. 8 and shown in Figure 9, handover forms with cam 43a and draws as bottom profiled: the just commentaries on classics by rotating shaft 41 (is left-hand revolution among Fig. 5, among Fig. 8 clickwise), make a pair of roller group 31 rise to the handover stop position P4 that can keep and transfer workpiece W of main transfer line ML top from the non-handover stop position P3 that workpiece W is not transferred of main transfer line ML below, and the counter-rotating by rotating shaft 41 (is clickwise among Fig. 5, be left-hand revolution among Fig. 8), make a pair of roller group 31 drop to non-handover stop position P3 from transferring stop position P4.

As shown in Figure 9, the profile of transferring with cam 43a is made of aftermentioned (6 place) cam region B1～B6.That is, cam region B1～B6 is respectively:

B1: be equivalent to the nearby part in zone of non-handover stop position P3, in the angular range of regulation, form the cam height of almost fixed, and the slow cam region that tilts;

B3: be equivalent to the nearby regional part of carrying face height and position Po of main transfer line ML, in the angular range of regulation, form fixing cam height, and tilt than slow cam region;

B5: be equivalent to transfer the nearby part in zone of stop position P4, in the angular range of regulation, form the cam height of almost fixed, and the slow cam region that tilts;

B2: between cam region B1 and cam region B3, form continuously with cam region B1 and cam region B3, and the steeper cam region that tilts;

B4: between cam region B3 and cam region B5, form continuously with cam region B3 and cam region B5, and the steeper cam region that tilts;

B6: B5 is continuous with cam region, and forms the cam region of fixing cam height in the angular range of regulation.

In addition, transfer unit 30 begins to carry out following action: slowly slow down to rise in cam region B1, B3, B5 (or decline) stops and being positioned on position P1, Po, the P4, or slowly quicken rise (or decline) in cam region B1, B3, B5.

In addition, fasten with the pass of the camming surface height of cam 43a with handover with the camming surface height of cam 42a in maintenance, as shown in Figure 9, in the angular regions till the position of the Location-to-Location sensor 47 of position transduser 45, keep being positioned at the below of transferring with the camming surface height of cam 43a with the camming surface height of cam 42a, and in the angular regions till the position of the Location-to-Location sensor 48 of position transduser 47, keep being positioned at the top of transferring with the camming surface height of cam 43a with the camming surface height of cam 42a, in addition, on the position of position transduser 47, keep camming surface height and the camming surface height of transferring with cam 43a identical (being height P4) with cam 42a.

As Fig. 4, Fig. 5, shown in Figure 7, driving motor 44 is fixed on the base 10 (base station 1), and via speed reduction gearing (not shown) rotary driving force is applied to rotating shaft 41.

As shown in Figure 5,

position transduser

45,46,47,48 is with interval that upwards separates regulation in week and the sidewall 12 that can be fixed in base 10 with the detection lug 41a of rotating shaft 41 near also relative mode.

Position transduser 45 can detect rotating shaft 41 and be positioned at initial position, can detect that holding unit 20 is positioned at non-maintenance stop position P1 and transfer unit 30 is positioned at non-handover stop position P3.

Position transduser 46 can detect the angle position after rotating shaft 41 turns over predetermined angular, can detect holding unit 20 and be positioned at intermediate stop position Pm and transfer unit 30 and be positioned at and transfer stop position P4.

Position transduser 47 can detect the angle position after rotating shaft 41 turns over predetermined angular again, can detect holding unit 20 and be positioned at position with the handover stop position P4 equal height of transfer unit 30.

Position transduser 48 can detect the angle position after rotating shaft 41 further turns over predetermined angular, can detect transfer unit 30 and rest under the state of transferring stop position P4, and holding unit 20 is positioned at and keeps stop position P2.

As mentioned above, by utilizing driving motor 44 that rotating shaft 41 is suitably rotated, just can make holding unit 20 (keeping platform 21) use lifting under the camming action of cam 42a in maintenance in the moment of hope respectively, or make transfer unit 30 (a pair of roller group 31) lifting under transferring with the camming action of cam 43a.

At this, keep with cam 42a and transfer forming by the cam member (keep with cam member 42, transfer) of special use respectively, but also can adjacently form a cam member with cam member 43 with cam 43.

As mentioned above, because lifting driver element 40 is made of cam mechanism, therefore, if the rotation (just change, reverse) of controlling and driving electrical motor 44, the moment lifting that holding unit 20 (keeping platform 21) and transfer unit 30 (a pair of roller group 31) are being stipulated respectively.

As shown in Figure 7, stopper mechanism 50 is located at the upper wall 13 of base 10, it comprises locating part 51, drive actuator 52 and position transduser (not shown) etc., wherein, above-mentioned locating part 51 can freely haunt by the carrying face S with respect to main transfer line ML on above-below direction V, above-mentioned drive actuator 52 drives locating parts 51 and moves up and down, above-mentioned position transduser to the workpiece W that utilizes main transfer line ML carrying whether be in workpiece keep transfer device M (base 10) directly over the position detect.

In addition, when workpiece W was detected by position transduser, in stop gear 50, drive actuator 52 actions stopped workpiece W so that locating part 51 is projected into the carrying face Sm top of main transfer line ML.On the other hand, when drive actuator 52 command signal according to the rules makes locating part 51 not become owner of the carrying face Sm below of transfer line ML, allow the workpiece of side carrying downstream W.

Then, keep the action of transfer device M to describe with reference to Figure 10 A to Figure 12 C to above-mentioned workpiece.In addition, in the production system that is provided with this workpiece maintenance transfer device M, as shown in Figure 3, the carrying face of boost line SL Ss is set at than on the high position of the carrying face Sm of main transfer line ML.

At first, shown in Figure 10 A, holding unit 20 (keeping platform 21) stops at the non-maintenance stop position P1 of carrying face height and position Po below, and transfer unit 30 stops at the non-handover stop position P3 of carrying face height and position Po below.Under above-mentioned readiness for action, when utilize main transfer line ML workpiece W is transported to device M directly over the time, by stopper mechanism 50 stop the action workpiece W is stopped.

Then, shown in Figure 10 B, rising by lifting driver element 40 drives, the handover stop position P4 that transfer unit 30 (a pair of roller group 31) rises to carrying face height and position Po top lifts workpiece W and be held in and can transfer from main transfer line ML, and holding unit 20 (keeping platform 21) stops behind the intermediate stop position Pm above the carrying face of the rising to height and position Po, below the handover stop position P4 simultaneously.

Then, shown in Figure 10 C, rising by lifting driver element 40 drives, rest under the state of transferring stop position P4 at transfer unit 30 (a pair of roller group 31), holding unit 20 (keeping platform 21) rises to the maintenance stop position P2 that transfers stop position P4 top, and takes over workpiece W and maintenance from transfer unit 30 (a pair of roller group 31).

Under this state, workpiece W is carried out predetermined process.In addition, keeping platform 21 to be provided with under the situation of leaning device, can make to keep platform 21 suitably to tilt to carry out predetermined process.

Then, shown in Figure 11 A, decline by lifting driver element 40 drives, holding unit 20 (keeping platform 21) drops to the intermediate stop position Pm that transfers stop position P4 below from keeping stop position P2, stops at the transfer unit of transferring on the stop position P4 30 (a pair of roller group 31) so that workpiece W is transferred to.

At this, when workpiece W is non-defective unit (certified products), shown in Figure 11 B, decline by lifting driver element 40 drives, transfer unit 30 (a pair of roller group 31) is from transferring the non-handover stop position P3 that stop position P4 drops to carrying face height and position Po below, workpiece W is transferred to main transfer line ML, holding unit 20 (keeping platform 21) drops to the non-maintenance stop position P1 of carrying face height and position Po below from middle stop position Pm simultaneously.Then, by the releasing action of stopper mechanism 50, make workpiece W along main transfer line ML side carrying towards downstream.

On the other hand, when workpiece W is substandard products (off gauge), is shown in as Figure 11 A and transfers the transfer unit 30 (a pair of roller group 31) that stop position P4 accepts workpiece W and can shown in Figure 11 C, workpiece W be taken out of towards boost line SL.

After this, shown in Figure 11 C, decline by lifting driver element 40 drives, transfer unit 30 (a pair of roller group 31) is from transferring the non-handover stop position P3 that stop position P4 drops to carrying face height and position Po below, and holding unit 20 (keeping platform 21) drops to the non-maintenance stop position P1 of carrying face height and position Po below from middle stop position Pm.

Then, when shown in Figure 12 A, utilizing boost line SL to have carried out the workpiece W behind the dressing operation when moving into once more repairing station RS, shown in Figure 12 B, rising by lifting driver element 40 drives, the handover stop position P4 that transfer unit 30 (a pair of roller group 31) rises to above the carrying face height and position Po to take over workpiece W and maintenance from boost line SL, and holding unit 20 (keeping platform 21) stops behind the intermediate stop position Pm above the carrying face of the rising to height and position Po, below the handover stop position P4 simultaneously.

Then, shown in Figure 12 C, decline by lifting driver element 40 drives, transfer unit 30 (a pair of roller group 31) is from transferring the non-handover stop position P3 that stop position P4 drops to carrying face height and position Po below, workpiece W is transferred to main transfer line ML, holding unit 20 (keeping platform 21) drops to the non-maintenance stop position P1 of carrying face height and position Po below from middle stop position Pm simultaneously.Then, by the releasing action of stopper mechanism 50, make workpiece W along main transfer line ML side carrying towards downstream.

In addition, as other sequence of operation, when shown in Figure 12 A, utilizing boost line SL to have carried out after the workpiece W behind the dressing operation moves into once more repairing station RS, when carrying out manual work etc., shown in Figure 10 C, rising by lifting driver element 40 drives, rest under the state of transferring stop position P4 at transfer unit 30 (a pair of roller group 31), holding unit 20 (keeping platform 21) rises to the maintenance stop position P2 that transfers stop position P4 top and also keeps to take over workpiece W from transfer unit 30 (a pair of roller group 31).Then, workpiece W is carried out predetermined process.

After this, will carry out the workpiece W of manual work along main transfer line ML side carrying towards downstream by the action of Figure 12 B to Figure 12 C.

Like this, as long as being set, a workpiece keeps transfer device M, just can be when guaranteeing that workpiece W carried out the processing region of predetermined processing, guarantee to carry out to the handover of boost line SL and from the shared handover zone of boost line SL to the handover of main transfer line ML from main transfer line ML, thereby can realize the simplification of equipment, the space savingization of area, the raising of capacity rating etc. are set.

Figure 13 to Figure 15 C is the figure that expression workpiece of the present invention keeps another embodiment of transfer device, owing to keep using cam member (keeping using cam) and handover with all identical the cam member (transfer and use cam) with above-mentioned embodiment except having changed, therefore, to the identical identical symbol of structure mark, and omit its explanation.

This workpiece maintenance transfer device M comprises maintenance cam member 42 ' and handover cam member 43 ', to replace above-mentioned maintenance cam member 42 and handover cam member 43.

Keep having maintenance with cam member 42 ' and use cam 42a ', this maintenance uses cam 42a ' to contact with the driven member 24 of holding unit 20, to apply the camming action that makes driven member 24 lifting on above-below direction V.

Handover has to transfer with cam member 43 ' uses cam 43a ', and this handover uses cam 43a ' to contact with the driven member 36 of transfer unit 30, to apply the camming action that makes driven member 36 lifting on above-below direction V.

As shown in figure 13, keeping using cam 42a ' to form draws as bottom profiled: the just commentaries on classics by rotating shaft 41 (is that conter clockwise is from starting point θ among Figure 13 ₀Via θ ₁To θ ₂Rotation), make to keep platform 21 to rise to the maintenance stop position P2 that workpiece W is kept of main transfer line ML top, and (be that cw is from θ among Figure 13 by the counter-rotating of rotating shaft 41 from the non-maintenance stop position P1 that workpiece W is not kept of main transfer line ML below ₂Via θ ₁And starting point θ ₀To θ ₃Rotation), make to keep platform 21 to drop to non-maintenance stop position P1 from keeping stop position P2.

That is, as shown in figure 13, keep use the profile of cam 42a ' to form and have following cam region: for setting non-maintenance stop position P1 forms the cam height of fixing in the angular range of regulation cam region C1; Nearby zone at the carrying face height and position Po of main transfer line ML forms the cam region C2 of slow transition curve that tilts; And for setting the cam region C3 that keeps stop position P2 in the angular range of regulation, to form fixing cam height.

Handover is used cam 43a ' to form and drawn as bottom profiled: the just commentaries on classics by rotating shaft 41 (is that conter clockwise is from starting point θ among Figure 13 ₀Via θ ₁To θ ₂Rotation), a pair of roller group 31 is rested on the non-handover stop position P3 that workpiece W is not transferred of main transfer line ML below, and (is that cw is from θ among Figure 13 by the counter-rotating of rotating shaft 41 ₂Via θ ₁And starting point θ ₀To θ ₃Rotation), after keeping platform 21 to drop to non-maintenance stop position P1, make a pair of roller group 31 rise to the handover stop position P4 that can keep and transfer workpiece W of main transfer line ML top.

That is, as shown in figure 13, transfer the profile use cam 43a ' and form and have following cam region: for setting non-handover stop position P3 forms the cam height of fixing in the angular range of regulation cam region D1; Transfer stop position P4 forms fixing cam height in the angular range of regulation cam region D2 for setting; And between cam region D1 and cam region D2 the bevelled cam region.

That is, as shown in figure 13, just changeing when rotating shaft 41 (is that conter clockwise is from starting point θ among Figure 13 ₀Via θ ₁To θ ₂Rotation) time, rest in a pair of roller group 31 under the state of non-handover stop position P3, keeping platform 21 (driven member 24) to rise to from non-maintenance stop position P1 keeps stop position P2 to come workpiece W is kept, and when keeping platform 21 to be positioned at the state lower rotary shaft 41 counter-rotating predetermined angulars of maintenance stop position P2, keep platform 21 to descend workpiece W is transferred to main transfer line ML, when rotating shaft 41 further counter-rotating predetermined angulars (are that cw is from θ among Figure 13 ₂Via θ ₁And starting point θ ₀To θ ₃Rotation) time, keeping after platform 21 drops to non-maintenance stop position P1, a pair of roller group 31 rises to from non-handover stop position P3 and transfers stop position P4 workpiece W is held in and can transfers.

Then, keep the action of transfer device M to describe with reference to Figure 14 A to Figure 15 C to above-mentioned workpiece.

At first, shown in Figure 14 A, holding unit 20 (keeping platform 21) stops at the non-maintenance stop position P1 of carrying face height and position Po below, and transfer unit 30 stops at the non-handover stop position P3 of carrying face height and position Po below.Under above-mentioned readiness for action, when utilize main transfer line ML workpiece W is transported to device M directly over the time, by stopper mechanism 50 stop the action workpiece W is stopped.

Then, as shown in Figure 14B, the rising by lifting driver element 40 drives, and the maintenance stop position P2 that holding unit 20 (keeping platform 21) rises to carrying face height and position Po top to take over workpiece W and keep from main transfer line ML.In addition, transfer unit 30 (a pair of roller group 31) is in the state of the non-handover stop position P3 of the carrying face of resting on height and position Po below.

Then, shown in Figure 14 C, by the decline driving of lifting driver element 40, holding unit 20 (keeping platform 21) drops to the non-maintenance stop position P1 of carrying face height and position Po below from keeping stop position P2, and workpiece W is transferred to main transfer line ML.

At this, when workpiece W is non-defective unit (certified products), shown in Figure 14 C,, make workpiece W along main transfer line ML side carrying towards downstream by the releasing action of stopper mechanism 50.

On the other hand, when workpiece W is substandard products (off gauge), from holding unit 20 shown in Figure 14 C (keep platform 21) drop to carrying face height and position Po below non-maintenance stop position P1 and with the state of workpiece W mounting to the main transfer line ML, rising (counter-rotating) by lifting driver element 40 drives, shown in Figure 15 A, transfer unit 30 (a pair of roller group 31) takes over workpiece W and be held in and can transfer from main transfer line ML from the handover stop position P4 that non-handover stop position P3 rises to carrying face height and position Po top.

Then, shown in Figure 15 B, transfer transfer unit 30 (one group of roller group 31) that stop position P4 or rising (counter-rotating) driving by lifting driver element 40 be positioned at handover stop position P4 and take over workpiece W and keep when utilizing boost line SL will on repairing station RS, carry out the workpiece W behind the dressing operation when moving into once more, resting on from boost line SL.

Then, shown in Figure 15 C, by the decline driving of lifting driver element 40, transfer unit 30 (a pair of roller group 31) transfers to main transfer line ML from transferring the non-handover stop position P3 that stop position P4 drops to carrying face height and position Po below with workpiece W.Then, by the releasing action of stopper mechanism 50, make workpiece W along main transfer line ML side carrying towards downstream.

In addition, as other sequence of operation, when shown in Figure 15 B, utilizing boost line SL to have carried out after the workpiece W behind the dressing operation moves into once more repairing station RS, when carrying out manual work etc., as shown in Figure 14B, rising by lifting driver element 40 drives, rest under the state of transferring stop position P4 at transfer unit 30 (a pair of roller group 31), holding unit 20 (keeping platform 21) rises to the maintenance stop position P2 that transfers stop position P4 top and also keeps to take over workpiece W from transfer unit 30 (a pair of roller group 31).Then, workpiece W is carried out predetermined process.

After this, by the action of Figure 14 C, the workpiece W that will carry out manual work is along main transfer line ML side carrying towards downstream.

Figure 16 is the diagrammatic side view that expression workpiece of the present invention keeps the another embodiment of transfer device, because except having changed the lifting driver element, all identical with above-mentioned embodiment, therefore, identical structure is marked identical symbol and omits its explanation.

That is, the workpiece of present embodiment keeps transfer device M to comprise base 10 ', has holding unit 20 ', transfer unit 30 ' that comprises a pair of roller group 31, driver train 32 and engagement section 36 ' that keeps platform 21 and engagement section 24 ' and the lifting driver element 140 that drives holding unit 20 ' and transfer unit 30 ' lifting etc.

Lifting driver element 140 comprises and keeping with actuator 142, handover actuator 143 and control element (not shown) etc., wherein, above-mentioned maintenance is fixed in base 10 ' and the engagement section 24 ' of holding unit 20 ' is applied the lifting propulsive effort with actuator 142, above-mentioned handover is fixed in base 10 ' and the engagement section 36 ' of transfer unit 30 ' is applied the lifting propulsive effort with actuator 143, and above-mentioned control element carries out drive controlling with actuator 142 and handover with actuator 143 to keeping.

Keep utilizing its lifting to drive and make holding unit 20 ' (keeping platform 21) lifting with actuator 142.

Handover utilizes its lifting to drive with actuator 143 and makes transfer unit 30 ' (a pair of roller group 31) lifting.

At this, can adopt the actuator that utilizes air pressure or hydraulic pressure or electromagnetic actuation force etc. to be used as keeping with actuator 142 and handover actuator 143.

Specifically, utilize control element to carry out drive controlling with actuator 142 to keeping, so that keep platform 21 to be positioned at the maintenance stop position P2 that workpiece W is kept of the non-maintenance stop position P1 that workpiece W is not kept of main transfer line ML below and main transfer line ML top, or utilize control element carry out drive controlling to transferring with actuator 143, so that a pair of roller group 31 is positioned at the handover stop position P4 that can keep and transfer workpiece W above the non-handover stop position P3 that workpiece W is not transferred of main transfer line ML below and the main transfer line ML.

Like this, because lifting driver element 140 is made of actuator mechanism, therefore, as long as utilize control element to keeping with actuator 142 and transfer and carry out drive controlling, the moment lifting that a pair of roller group 31 and maintenance platform 21 are being stipulated respectively with actuator 143.

Figure 17 is that the figure that workpiece of the present invention keeps another production system of transfer device M is used in expression.As shown in figure 17, in this production system, comprise main transfer line ML, two boost line SL, two repair station RS and automatic processor AM etc., wherein, above-mentioned two boost line SL disposed adjacent become to intersect toward each other and with main transfer line ML, and above-mentioned automatic processor AM disposes for carry out the regulation operation automatically in the zone that disposes workpiece maintenance transfer device M.

In this production system, when utilize main transfer line ML workpiece W is carried to device M directly over the time, with above-mentioned the same, the maintenance action of holding unit 20 work carrying out workpiece W, and the operation that utilizes automatic processor AM to stipulate, when being certified products, workpiece W returns main transfer line ML and side carrying towards downstream once more, and when being off gauge, with above-mentioned the same, the transfer movement of transfer unit 30 work carrying out workpiece W is transferred to boost line SL, after this, after the dressing operation that has carried out regulation, once more workpiece W is transferred to main transfer line ML from boost line SL, thus side carrying towards downstream.

In the present embodiment, also can make and carry out the processing region of predetermined processing and transfer the zone shared workpiece W, thereby can not only realize the simplification, space savingization of simplification, the structure of equipment etc., especially can also shorten to repair and carry the required time, thereby capacity rating is improved.

Figure 18 is that the figure that workpiece of the present invention keeps the another production system of transfer device M is used in expression.As shown in figure 18, in this production system, comprise main transfer line ML, boost line SL and repair station RS etc., wherein, above-mentioned main transfer line ML have by cut apart form can lifting cut apart transfer line ML ', above-mentioned boost line SL is adjacent to be configured to intersect with main transfer line ML (cut apart transfer line ML '), and above-mentioned reparation station RS is disposed at the front end area of boost line SL.

At this, workpiece keeps transfer device M to be configured in the below of cutting apart transfer line ML ', and cutting apart transfer line ML ' can free lifting under the driving of the lift drive mechanism of regulation.

With reference to Figure 19 A to Figure 20 C the action of this production system is described.

At first, shown in Figure 19 A, holding unit 20 (keeping platform 21) stops at the stop position of carrying face height and position Po below, and transfer unit 30 stops at the stop position of carrying face height and position Po below.Under above-mentioned readiness for action,, workpiece W is stopped by the action that stops that being located at the stopper mechanism of cutting apart transfer line ML ' when utilizing main transfer line ML that workpiece W is transported to when cutting apart transfer line ML ' and going up.In addition, under above-mentioned state, holding unit 20 (keeping platform 21) stops at than on the high position of transfer unit 30 (a pair of roller group 31).

Then, shown in Figure 19 B, when cutting apart transfer line ML ' decline, workpiece W is held unit 20 (keeping platform 21) and transfers and maintenance.Then, workpiece W is carried out predetermined process.In addition, keeping platform 21 to be provided with under the situation of leaning device, can make to keep platform 21 suitably to tilt to carry out predetermined process.

Then, when workpiece W is non-defective unit (certified products), shown in Figure 19 C, cuts apart transfer line ML ' and rise to initial height and position (the carrying height and position of main transfer line ML), to lift workpiece W and to take over workpiece W from holding unit 20.After this, by the releasing action of stopper mechanism 50, make workpiece W along main transfer line ML side carrying towards downstream.

On the other hand, when workpiece W is substandard products (off gauge), from the state shown in Figure 19 B, shown in Figure 20 A, transfer unit 30 rises, to take over workpiece W from holding unit 20, and this workpiece W lifted carrying face height and position to boost line SL, and be transferred to boost line SL.

Then, after carrying out dressing operation at reparation station RS, utilize boost line SL that workpiece W is kept by transfer unit 30 once more, shown in Figure 20 B, transfer unit 30 drops to the specified height position, cuts apart transfer line ML ' rising simultaneously and takes over workpiece W.

After this, shown in Figure 20 C, cut apart transfer line ML ' and rise to initial height and position (the carrying height and position of main transfer line ML), to lift workpiece W and to take over workpiece W from holding unit 20.After this, by the releasing action of stopper mechanism 50, make workpiece W along main transfer line ML side carrying towards downstream.

On the other hand, shown in Figure 20 C, holding unit 20 and transfer unit 30 descend and stop on the initial height and position.

This moment is also with above-mentioned the same, as long as being set, a workpiece keeps transfer device M, just can be when guaranteeing that workpiece W carried out the processing region of predetermined processing, guarantee to carry out from main transfer line ML (cut apart transfer line ML ') to the handover of boost line SL and from the shared handover zone of boost line SL to the handover of main transfer line ML (cut apart transfer line ML '), thereby can realize the simplification of equipment, the space savingization of area, the raising of capacity rating etc. are set.

In sum, in the above-described embodiment, show main transfer line ML as first transfer line, boost line SL situation as second transfer line, but be not limited to this, also can use boost line or other main transfer line as first transfer line, use main transfer line or other boost line as second transfer line.

In addition, in the above-described embodiment, the engagement section that has as lifting driver element 40, show the driven

member

24,36 that can rotate freely, but be not limited to this, also can adopt respectively and keep with

cam

42a, 42a ' and transfer with the pin member of

cam

43a, 43a ' moving contact or other haunched member etc.

Industrial utilizability

In sum, keep in the transfer device at workpiece of the present invention, carry out the processing region of predetermined processing and transfer the zone shared owing to can make to workpiece, can not only realize simplification, space savingization of simplification, the structure of equipment etc., especially can also shorten to repair and carry the required time, thereby capacity rating is improved, therefore, certainly can be applicable to the manufacturing line of component of machine or electric component etc., the manufacturing line for other field also is useful in addition.

Claims

1. a workpiece keeps transfer device, its can first transfer line with second transfer line adjacent with described first transfer line mode of intersecting between workpiece is transferred, and in order to carry out predetermined process, workpiece can be lifted and keeps from described first transfer line, it is characterized in that, comprising:

Base, this base is arranged on the below of described first transfer line;

Holding unit, this holding unit are configured to free lifting and come workpiece is kept on described base;

Transfer unit, this transfer unit are configured to free lifting and come workpiece is transferred on described base; And

The lifting driver element, this lifting driver element is arranged on the described base, and respectively the regulation the moment can drive described holding unit and transfer unit lifting with respect to the mode that described first transfer line freely haunts.

2. workpiece as claimed in claim 1 keeps transfer device, it is characterized in that,

Described holding unit comprises the maintenance platform, and this maintenance platform is being kept workpiece in the lifting by described lifting drive unit drives,

Described transfer unit comprises a pair of handover movable body, and this a pair of handover movable body is configured in two outsides that clip described maintenance platform, and workpiece is being transferred in the lifting by described lifting drive unit drives.

3. workpiece as claimed in claim 1 keeps transfer device, it is characterized in that,

Described holding unit comprises: keep platform, this maintenance platform keeps workpiece; Shank, this shank extends towards the below from described maintenance platform, and is guided the energy free lifting by described base; And the engagement section, this engagement section engages with described lifting driver element bears the lifting propulsive effort,

Described transfer unit comprises: a pair of handover movable body, this a pair of handover movable body are configured in two outsides that clip described maintenance platform and come workpiece is transferred; Driver train, this driver train drives described a pair of handover movable body or workpiece is pushed driving; Keep frame, this maintenance frame keeps described a pair of handover movable body and driver train; And the engagement section, described maintenance frame is located in this engagement section, and engages with described lifting driver element and to bear the lifting propulsive effort.

4. workpiece as claimed in claim 3 keeps transfer device, it is characterized in that,

Described transfer unit comprises through-hole section, and this through-hole section is located at described maintenance frame, run through for described shank,

Described through-hole section forms utilizes described shank described maintenance frame to be guided the portion that is directed to of energy free lifting.

5. workpiece as claimed in claim 3 keeps transfer device, it is characterized in that,

Described a pair of handover movable body is made of a pair of roller group that is disposed at described maintenance frame,

Described driver train comprises: the propulsive effort transfer part, and this propulsive effort transfer part is passed to described a pair of roller group with rotary driving force; And drive source, this drive source is fixed in described maintenance frame, and described propulsive effort transfer part is applied rotary driving force.

6. workpiece as claimed in claim 3 keeps transfer device, it is characterized in that,

Described lifting driver element comprises: rotating shaft, and this rotating shaft is become and can freely rotate by described base support; Keep using cam, this keeps with cam and the rotation of described rotating shaft one, and the engagement section of described holding unit is applied camming action; Transfer and use cam, this is transferred with cam and the rotation of described rotating shaft one, and the engagement section of described transfer unit is applied camming action; And driving motor, this driving motor is located at described base and is driven described rotating shaft rotation.

7. workpiece as claimed in claim 6 keeps transfer device, it is characterized in that,

Described handover becomes with cam-shaped draws as bottom profiled: the just commentaries on classics of rotating shaft as described in utilizing, make described a pair of handover movable body rise to the handover stop position that can keep and transfer workpiece of described first transfer line top from the non-handover stop position of workpiece not being transferred of described first transfer line below, and utilize the counter-rotating of described rotating shaft, make described a pair of handover movable body drop to described non-handover stop position from described handover stop position

Described maintenance becomes with cam-shaped draws as bottom profiled: the just commentaries on classics of rotating shaft as described in utilizing, make described maintenance platform rise to the maintenance stop position that workpiece is kept of described handover stop position top via the intermediate stop position of described handover stop position below from the non-maintenance stop position that workpiece is not kept of described first transfer line below, and utilize the counter-rotating of described rotating shaft, make described maintenance platform drop to described non-maintenance stop position via described intermediate stop position from described maintenance stop position.

8. workpiece as claimed in claim 6 keeps transfer device, it is characterized in that,

Described maintenance becomes with cam-shaped draws as bottom profiled: the just commentaries on classics of rotating shaft as described in utilizing, make described maintenance platform rise to the maintenance stop position that workpiece is kept of described first transfer line top from the non-maintenance stop position that workpiece is not kept of described first transfer line below, and utilize the counter-rotating of described rotating shaft, make described maintenance platform drop to described non-maintenance stop position from described maintenance stop position

Described handover becomes with cam-shaped draws as bottom profiled: the just commentaries on classics of rotating shaft as described in utilizing, make described a pair of handover movable body rest on the non-handover stop position of workpiece not being transferred of described first transfer line below, and utilize the counter-rotating of described rotating shaft, after described maintenance platform drops to described non-maintenance stop position, make described a pair of handover movable body rise to the handover stop position that can keep and transfer workpiece of described first transfer line top.

9. workpiece as claimed in claim 3 keeps transfer device, it is characterized in that,

Described lifting driver element comprises: keep using actuator, this maintenance is fixed in described base with actuator, and the engagement section of described holding unit is applied the lifting propulsive effort; Transfer and use actuator, this handover is fixed in described base with actuator, and the engagement section of described transfer unit is applied the lifting propulsive effort; And control element, this control element carries out drive controlling with actuator and handover with actuator to described maintenance.