JPS59213578A - Work lifting device - Google Patents

Abstract

PURPOSE:To prevent a work from slanting when it is brought up and down in a device to bring up and down the work such as a car body in an asembly line and the like for automobile by synchronously operating support members to support the work for bringing up and down by means of a guide member. CONSTITUTION:When a work W placed on a work-receiving piece 9 of a conveyor 1 and conveyed to the left comes to a corresponding position to an automatic assembling device 29, a drive device 27 is driven, and a pinion gear 23 is rotated to trasfer a work conveying table 17 on a guide rail 15 via a rack 21 and rollers 19 synchronously with the conveyance of the work W. When rotational members 43a and 43b supported on brackets 31 of a lifting device 3 to be vertically movable are brought up to moved on slant faces of movable guide parts 37a and 37b for the advance of a guide member 47, support members 39a and 39b are brought up to be in contact with the lower face of the work W, which is lifted up from the receiving piece 9. In this state, the work W is maintained at the lifted up position, and furnished with various parts.

Description

[Detailed Description of the Invention] Is this invention a work receiver? Regarding the I'FT device, in more detail, for example, a conveyor ("1 on the body of a car being conveyed;
Automatically removes the parts such as ``A'', and lowers the car body from the loading platform 7 to the ``21i-7'' conveyor for slurping. It is something that

A conventional work lifting device of this type will be explained with reference to FIG.

Figure 1 shows a conveyor 10 that is a conveying device located directly below the workpiece W.
1, and a pair of workpiece processing devices 103 installed on both left and right sides of the conveyor 101 in the WI feeding direction (from the front side to the back side of the page) (X).

The conveyor 101 includes a conveying section 107 of the conveying member 105.
Conveying section 1 on which a plurality of workpiece receivers (pull pieces 109 are attached)
11, and a frame 113 that movably supports 121 the transport unit 111 on both left and right sides in the transport direction of the transport unit 111.
extends in the transport direction.

On both sides of the conveyor 101, that is, on the sides of each frame 113, a plurality of guide rails 115 are provided extending in the conveyance direction at a distance from the frame 113. A workpiece carrier 117 that can freely reciprocate on this rail 115 has a plurality of rotating wheels 119 at its lower end, and when the door is opened (-
There is.

An automatic assembly device 121 is installed in the center of the upper surface of the workpiece conveyance table 117 to perform work W (work W) and an automatic assembly device 121 for assembling the parts to be worked. Conveyor 121' 101 [Work conveyance platform 1'17] on the front side in the feeding direction is equipped with a bra cover 123. It has a protrusion 125 that protrudes horizontally from one side to the other.

This protrusion 12! ] A plurality of cylinders 127 are superimposed on the lower surface. Then, the cylinder 11 can be freely cut downward to pass upwardly through the protrusion 125 of the bracket 12:3.
The cylinder 127 has a cylinder 127 (12°C) with a workpiece W supported at the upper end of the cylinder 129.
J hf: ','i "The workpiece support member 131 is attached.

LX I-ノ(M + &'(', lT, l Nhe 7'
101 (7) wa') 20? -;ii The workpiece W being transported by U on 09 goes to 1-'10
'1 No. ``During G's work descending device 103, paraphrase +
, J automatic silk drawing device 121 removes the silk f of the parts appearing on the workpiece W ((As soon as J reaches the possible position, each workpiece Il
l'J feed stand 'l' + 71J, J > to 7' 101
(7) IE feed speed is approximately the same speed 1σC' kite rail 11
The 5 pieces are moved in the same direction as the conveyance direction of the conveyor 1°1.

By moving the workpiece conveyance table 117, this +fG conveyance table 1
17. Bracket 123. cylinder 1
27 mag will also move. In other words, the work lifting device 103 moves.

Almost at the same time as the movement of the workpiece gastrointestinal device 103 is started,
As each cylinder 127 operates and the cylinder rod 129 moves upward, the workpiece W is raised and supported by the workpiece support member 131 from the conveyor 101.

However, cylinder 127 is conveyor 1014 fall/υ
It is extremely difficult to control the cylinders 127 that face each other synchronously, and there is a possibility that the f-nork W may be tilted as shown in FIG. Then, the workpiece W is lowered by the workpiece lifting device 103.
When the conveyor 101 is up and the workpiece stomach is 1 7 times lowered! If 'f mounting'; 1103 is moving, the automatic assembly device 121 performs a predetermined operation on the workpiece W. When this work is completed, each cylinder 127 operates to place the workpiece W onto the workpiece number block 109 of the conveyor 101, and the cylinder rod') 29 descends. Lowering of the workpiece W by -t- lowering of the cylinder rod 129 1
141. ) Approximately the same child as the upper world (2, 1 Nbe 7101)
It is difficult to synchronize the cylinders 127 that face each other at υ.

In order to eliminate l111i during ε, each cylinder 12
7 cylinders/) [Connect 1 cylinder 129 and avoid the same operation (it's okay, but 221 hair 101 is 1 fire) 1 Connect each cylinder 127 on both right sides! J: There is a problem such as when there is a conveyor i''l01 between the cylinders 127, ij,'4)M becomes multiple 211.

This invention was created in view of the problem described in Section 11.4 Also, b, =
1. Remove the workpiece from the conveyor L, or transfer it to the conveyor'
-1- [When lowering the workpiece, move the workpiece 41-jizaUi1'l Nork fi descending 1--buy j11
``The purpose is to lie down.''

In order to achieve the objective of C, this invention limits the workpiece to λ
i'iJ Nohna II'! A workpiece carrier is installed on both the left and right sides of the feeding device that can move back and forth in the direction of conveyance by the C column in synchronization with the positioning. A guide member is provided within the locus of movement of the workpiece support members in the conveyance direction so that each workpiece support member is always moved up and down to the same height by movement of the workpiece conveyance table.

Hereinafter, one embodiment of the present invention will be explained in detail with reference to FIG. 2 and subsequent figures.

2 to 4 show a conveyor 1. There are a front view and a side view showing the workpiece unloading device 3 and the like installed on the right and left sides facing the conveyance direction of the conveyor '1.

The conveyor 1 is similar to the conventional example explained in FIG. 11, 1 injection part on both sides of the h-right side toward the transport direction of the transport unit 11] 1
A frame 13 that movably supports a frame 13 extends in the transport direction.

2] On the sides of the carrier 1, that is, on the side bevels of each frame 13, apply a distance from the frame 13. A number of kite rails 15 are extended parallel to the conveyor 1 (
There is. A workpiece carrier 17 that can freely reciprocate on each guide rail 15 has wheels 19 serving as a rotating body at its lower end;
One rack 21 is installed along the direction of movement of each workpiece IIIJ carriage 17, and each rack 21 has a vinyl rack. The Δanginono 23 is meshed with each other. Each binion gear 23 +
, t;=I+鈷11! The connecting shaft 25 is rotatably supported on the same 11M11 by the l 25, and the rotation of the connecting shaft 25 is caused by the above-mentioned force.
Forward/reverse rotation 4r drive 'i' 4 j', 27
2. Move the workpiece transport platform 17, that is, each workpiece lifting device U, and move the workpiece W onto the conveyor. At the center of the upper surface of each of the workpiece conveyance tables 17, there is an automatic silk machine for assembling the parts on the 191Epo Work W. ``[) device 29 is attached, and brackets 31 are attached to the workpiece conveyance platform 170 on both left and right sides of one device 20. , each brown h 31 tl, L '13 Fi Con hair?
1, each protrusion r'll! 33 has shiV7 note 35a, 3
．． 5b can be moved downward by 4 positions, and a sea urchin store moving part 37 is formed. Projection portion 33 of each shell 1771-35a, 351+
Support members 39a and 39b are attached to the upper end. The support member 39a of each shaft 35a supports the rear side (transportation start end side) of the workpiece W, and the support member 39b of each shaft 35b supports the front side (transportation end side) of the workpiece W.

As shown in FIGS. 5 and 7, support shafts 4.1a, 411) are provided at the lower part of each shaft V-lift 35a, 35b below the protrusion 33 in a direction perpendicular to the transport direction. Rotatable rotating members 43a and 43b are respectively attached to both ends of the support shafts 41a and 41b. Each of these support shafts 41a, 411) is connected to a rotating member 43a.
, 43b, so that the support shaft 41a on the transport start end side (the right side in FIGS. 5 and 6) is aligned with the support shaft 41a on the transport end side (the left side in FIGS. Support shaft 41 b J: It is formed shorter.

On the other hand, the frame 13 of the conveyor 1 and the guide
between the brackets 1 to 31 and the rule 15;
Below the locus of movement of the protrusion 33, a plurality of support columns 45 are bent in the conveyance direction. Each branch office 45 (goha 1)
11. The guide members 47 of each rotating part + J43a, /I3b are connected (1, this guide member 47 is the next J, sea urchin)
B is made C.

1) Each 47 inside + A/174 rotating part 1i
3a.

/l 3 b is 1 [2 A retreating guide portion 49 that moves in a 31 direction opposite to the feeding direction is connected to the 6 supports +1: 45 j, :.

Above each right side of each IQ2')H guide part/I9, there is a space 5,''1 joint between the advancing fixed guide part 511) and the rear ju's inner part 9. It is designed to form (-J), and the internal 511 is fixed for this advancement.
) on which the rotating member 43b moves by 1ffJ jλ in the force direction. Then, each advance fixed guide section 5 'I II O) l
1rj 5A Wi GVi side GMi section IJ, I
ff n 551 + 'cr The small shaft door Cj-outer movable mulberry interior 571) is rotatably supported at one end, and the other end is in contact with the retreating guide part 49. Also, the advancing movable guide section 571) forms a slope t-J from the retreating guide section 49 to the advancing fixed guide section 511).

A movable advancing guide portion 61b fixed to the L1 pin 591) is rotatably provided at the end of the conveyance terminal side of each fixed advancing guide portion 511). A weight 63b is further fixed to each bin 59b so that the advancing movable guide portion 61b maintains a horizontal state.

On the inner side of each of the advancing fixed guide parts 511), there is provided an advancing fixed guide part 51 in which the rotating member 438 moves in the transport direction.
A is set up. The conveyor 1 is sandwiched between the shirts 1 to 51a on both the left and right sides.
35a, 35b are maintained at a constant interval so that they can pass through. An advancing movable guide section 57-1 is rotatably provided at the end of each advancing fixed guide section 51a on the transport start end side via a bin 55a, substantially similar to the advancing movable guide section 57b. , from the retreating guide part 49 to the advancing fixed guide part 51
A slope is formed by a.

On the other hand, a movable advancing guide portion 61a fixed to the bin 59a is rotatably provided at the end portion of each advancing fixed guide portion 51a on the transport terminal side. And in each bin 59a,
Almost similarly to the advancing movable guide section 61b, each advancing movable guide section 61a maintains a horizontal state, and the sea urchin weight 63a is fixed.

Movable guide γ'+l for advancement of each guide part 47 explained below
The distance in the conveyance direction between b7a and b7(), the distance in the conveyance direction between the advance movable guide part ('31a and 611), and the above-mentioned Shi1 horn h35a and Shirefu1~35
1), and 4 and (, respectively, are configured equally, and the advancing movable guide part 57a is 1 from 57b.
1. The advancing movable guide part 61a is 6111 on the throwing start end side.
, J, SIMt sending and sending side end side - U layout F5 and C. In addition, a rotating part 67 that is locked outside the thyroid is formed along the movable advancing guide part 571 of the fixed east direction τ1 (prefecture) 18 for advancing. Rotating part 6
One end of the transport starting end side of 7 (, 1 advancing fixed guide part 51aL
The rotary portion 67 is configured to be freely rotatable upward from the horizontal state through the provided pin 65.

Next, the effect of the above 4M configuration will be explained.

The work W placed on the work receiving piece 9 of the conveyor 1 and conveyed to the left in FIG. At this time, the position where parts can be assembled (pulled, etc.) onto the workpiece W is reached by the automatic coloring device 29. At this time, the drive device 2
7 is driven, the connecting shaft 25 and pinion gear 23 rotate in the direction of the arrow in FIG. It can move in the same direction and at the same speed as the conveyance direction of No. 1. Each workpiece IIIλ feed table ゛1
7 movement nibbler butt h31. shi+-'7l-35
a, 35b.

Support part 39a, 391+ and rotating member 43a, 43
11 inns will also be moved. 1, that is, the work lifting devices 3 on both the left and right sides of the conveyor 1 are the same! 'II Be wise] Nbear 1
move in sync with both.

At the beginning of movement of the work lifting device 3, the rotating member 43a,
43b comes into contact with the upper part of the backward guide part 49 and moves C. In this state, each workpiece field attachment 3 continues to move, and as shown in FIG.
0) Rotate t-111fl+i 81SU43bI't
, , (2) Place the slopes of the movable guide portion 571) on the upper arm, respectively. Due to this rise, each shaft 35a, '3
5b moves upward within the sliding portion 37 of the bracket 31,
Each support 1. '1 Part 14, 'l 9 a, , 3911
Mojo'C do 8 Sarahotsu de tenshi) 1 ruru. 6 supporting parts 't'A 39 a during these rises.

', 'l 9 b 1. i, comes into contact with the lower surface of the soak W,
Work W on conveyor i (7) r Nok receiver (J piece ≦)
Avoid one stomach.

Due to the movement of device J3,
Support shaft/l 1 b uses pin 05 as a fulcrum and C rotation part 67
Shino (kot, 1.; t, i, L 1."j',
The rotating parts 'rA 43a, 43b are respectively mounted on the advancing fixed guide parts 51a, 51b. The state is maintained. In this state, the legs for assembling parts are automatically assembled (-
J 4J device 2 (J-, J) is carried out during each rotation rli 4A 4 t3 a , 4 c 311 moves the soil inside 51a, 5Ib of the fixed system for advancing, while the work W is being moved at a predetermined distance. When the rotation is completed, the rotating members /I3a and /13b reach the horizontal state (2) as shown in FIG. ,
Pins 59a, 59b71 against 63b! While rotating downward about the center, guide portions 61a, 6. go down the slope of it).

Then, the rotating members 43a and 43b move toward the advancing movable guide section 6.
1a, 611), while descending the slope of Shift 35a,
35b and each support member 4J39a, 39L) also descend while always maintaining the same height, each support member 39a, 3
The workpiece W on 9b also descends, and the workpiece W is again placed on the workpiece receiver (J piece 9[) of the conveyor 1 and conveyed.

After the workpiece W starts to be conveyed 118 times again on the conveyor 1,
When each rotary member 43a, 43b reaches above the retreating guide part 49, each advancing movable guide part 6Ia, 611) is moved to the pin 59a, 59 by the action of the J3 harpoon 63a, 63b.
91) and return to the horizontal state.

Thereafter, the drive device 27 is driven to rotate in the direction opposite to the arrow in FIG. '19 (, 2) and moves toward the transport start end side.As the workpiece transport platform 17 moves, the brackets 31.
/131+ 'J'Lt moving crane. Co(r) shifter l-35a, 3E U11 and rotating part 4443a,
431) movement (,1, as shown in Figure 7)
35 a+ 3! '51), C passes between the advancing fixed guide parts 51a, etc. on both sides, and rotates the rotating member /13a.
is the advancing fixed guide part 51 and the retreating guide part 4 below it.
It moves on the rear 3B Jll guide part 49 below the rotating part (A/+ 31+ is the fixed guide part for advancement 511). And rotating part/l :3. il, /l
3b is the movable interior 57a, 571) for advancing into the bin ξ5
Centering on 5a and 55b, upwards (3!, 4.1
10゛)'Rotating part') lA43al Movable guide part 57 il J', Rotating member/13b
Moves to the right side of the advancing movable guide section 571J.

The above B movement (j,'' workpiece 711 on both the left and right sides of conveyor 1
'f Ri□<i 3 means the movement is Moraro lυ. This movement of the workpiece back 1Ilf'R position 3 is as follows:
Stop (17th age, 4% 'V' = Relepo work lowering device 3
The workpiece W is received from 4 to 11'l, and the next workpiece is transferred to the conveyor 1 and is waiting until it arrives.In this way, parts are assembled to the workpiece W. The attachment work etc. is performed repeatedly.

As explained above, according to the present invention, workpiece conveyance tables capable of reciprocating movement in synchronization with the conveyance device in the conveyance direction are installed on both left and right sides of the conveyance device that conveys the workpiece), and each workpiece conveyance table is movable up and down. 4. The work supporting members are stepped, and a guide part is provided within the movement locus of the work supporting part H in the transport direction, which allows each work supporting part to move up and down to the same height as the work transport table moves. When lifting and lowering the workpiece, the lifting and lowering between each support member that supports the work is the same 1v],
Moreover, the same height is always maintained. Therefore, the workpiece W does not tilt when it is raised or lowered, and there is no danger. Also, the structure -C is not complicated.

Note that this invention is not limited to the above-mentioned embodiments,
There are many ways to implement the present invention in ways other than the embodiments described above.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional work lifting device, Fig. 2 is a front view of a work lifting device of the present invention, and Figs. The later side view, Figures 5 and 6, are a plan view of the main parts of the workpiece, and Figure 7 is a front view of the main parts, and Figure 8 is a front view of the main parts.
Figures and Figure 9 are for the same work-1-inspector and lowering part (
] Main part side view, 3 (codes representing main parts in the drawing) 1... Conveyor 3... Workpiece I' unloading device 1'7 17... Workpiece conveyance platform 39a, 3911 ... Work support part removal 47 ... Kuwanai Ikkoma Applicant [Ichisan Jidochu Co., Ltd. Fig. 1, / Fig. 2 W Fig. 3 q

Claims (1)

[Scope of Claims] In the rework 4 joint purchase, the workpiece in the conveyance section ``1'' is held above the conveyance device, and the workpiece is placed above the conveyance device. On both left and right sides of the device, there are soak conveyance tables that can reciprocate in the conveyance direction in synchronization with the conveyance device. l When moving the feed table, a guide system for vertically moving each workpiece support member to the same height is installed within the movement locus of the workpiece supporter 4J in the direction of the conveying force. A work 111 outfit featuring features.