JPH0337876Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention transports the workpiece and transfers it to a jig.
Furthermore, the present invention relates to a conveyance device that receives and conveys a workpiece from a jig.

(Prior Art) Conventional transport devices used to transport workpieces to processing jigs, etc., and to transport processed workpieces from jigs, etc. to the next process, include:
For example, there are those shown in FIGS. 4 and 5. Fourth
The conveying device shown in the figure is provided separately from a jig (not shown) and has a roller conveyor 2 on a base 1 with a height that matches the jig.The conveying device shown in FIG. , a base 3 also provided separately from the jig.
A skid rail 4 is attached to the top.

(Problem to be solved by the invention) However, in such conventional conveying devices, the work W is conveyed by sliding on the roller conveyor 2 or skid rail 4, so the work W is conveyed by sliding on the roller conveyor 2 or skid rail 4. If the edge part has a part, the edge part may catch on the roller 5 of the roller conveyor 2 or scratch the skid rail 4, causing unpleasant noise. It may not slip,
Not only was the transportation work difficult, but the skid rails 4 were severely worn, and furthermore, the work W was sometimes deformed.

(Means and effects for solving the problem) This invention was made by focusing on such conventional problems, and is a pair of workpieces that can be placed and run in synchronization in the same direction. a conveying means, a receiving means having a gauge for receiving a workpiece from the conveying means, the receiving means being provided on the receiving means and supporting a pair of conveying means, and transporting the pair of conveying means between a work receiving position of the gauge and a non-receiving position above the gauge. The above-mentioned problem is solved by providing a conveyance device comprising an elevating means that reciprocates and a rotary support means that rotatably supports the receiving means.

(Example) This invention will be explained below based on the drawings. 1, 2 and 3 are diagrams showing an embodiment of this invention. First, to explain the configuration, in Figure 1, 7
9 is a jig provided on the base 8 for positioning and fixing the workpiece W ₁ and processing it with a welding gun or the like (not shown), and 9a, 9b, . . . are workpiece fixing means of this jig 7. It is. Therefore, the base 8
constitutes a receiving means having workpiece fixing means 9a, 9b, . . . (gauges) for receiving the workpiece _W1 from a conveying means to be described later. Also on the base 8 are second and third
As shown in the figure, a pair of mutually parallel frames 1
A base 12 with 0,11 is provided.
A hydraulic cylinder 13 is rotatably attached to the base 12 in parallel with the frames 10 and 11. Reference numeral 14 denotes an elevating table provided parallel to the base 12, and this elevating table 14 has a pair of frames 15, 16 parallel to the frames 10, 11 of the base 12.
have. Reference numerals 17 and 18 indicate link members whose central portions are rotatably connected to each other by one end of the shaft 21, and link members 19 and 20 whose center portions are rotatable relative to each other by the other end of the shaft 21. This is a link member connected to. Link member 17,1
9 have one end rotatably connected to the frame 10 or 11 of the base 12 via pins 22 and 23, and the other ends rotatably connected to each other via a shaft 24. And this axis 2
Both ends of the frame 15 and 16 of the lifting platform 14
They are slidably fitted into long grooves 25 and 26 formed in and extending in the longitudinal direction of each frame 15 and 16, respectively. Further, each of the link members 18 and 20 has one end connected to the frames 15 and 16 of the lifting platform 14.
They are rotatably connected to a shaft 27 extending between them, and the other ends are rotatably connected to each other via a shaft 28. The piston rod 13a of the cylinder 13 is rotatably connected to this shaft 28. As a result, as the piston rod 13a of the cylinder 13 moves forward and backward, the link member 1
7, 18 and 19, 20 are raised and lowered while mutually rotating around a shaft 21, and the lifting platform 14 is raised and lowered through between the work fixing means 9a, 9b, . . . of the jig 7. 29,30 is base 1
2, and its piston rods 29a, 30
a is an auxiliary cylinder connected to the lifting platform 14; The auxiliary cylinders 29 and 30 are for supporting the lifting platform 14. the cylinder 13;
Link members 17, 18, 19, 20, shafts 21, 2
4, 27, 28, pins 22, 23, and auxiliary cylinders 29, 30 are combined to form the elevating mechanism 3 of the elevating table 14.
1. frame 15 of the lifting platform 14,
A shaft 32 is spanned over and supported at one end of the shaft 16, and sprockets 33 and 34 of the same shape are attached to both ends of the shaft 32. Also,
Brackets 35 are attached to the other ends of the frames 15 and 16, respectively.
Sprockets 36, 37 or 38, 39 are rotatably attached to the sprockets. The sprockets 36, 38 or 37, 39 attached to opposite positions of both brackets 35 have the same shape and are concentric with each other. 40 is a sprocket 33, 3 provided on the frame 15 side.
It is an endless chain running between 6 and 37,
Reference numeral 41 designates an endless chain that runs between sprockets 34, 38, and 39 provided on the frame 16 side. Sprockets 33, 3 on the frame 15 side
6, 37 and sprocket 34 on the frame 16 side,
38 and 39 have the above-mentioned mutual relationship, the two chains 40 and 41 are parallel to each other,
Workpiece W ₁ is placed on the machine and the machine moves in the same direction in synchronization. Therefore, chain 40,
Reference numeral 41 constitutes a pair of transport means that can place the workpiece _W1 and travel in synchronization with each other in the same direction.
Further, the lifting mechanism 31 is provided in the receiving means and supports a pair of chains 40, 41, and supports the pair of chains 40, 41 on the workpiece fixing means 9a, 9.
b... workpiece receiving position (the predetermined position of the imaginary line position and solid line position in Fig. 1) and the non-receiving position above the gauge (the imaginary line position in Fig. 1)
It constitutes an elevating means for reciprocating between the two. Jig 7
is supported by a cylinder 43, and by lowering this cylinder 43, it can be rotated about a support 44 while being guided by a guide roller 42. Therefore, the guide roller 42, cylinder 4
3 and the support column 44 constitute rotation support means for rotationally supporting the base 8.

Next, the effect will be explained.

Now, the piston rod 13a of the cylinder 13 is retracted, and the link members 17, 18, 19, 20
1 is rotated around the shaft 21 and stands up, so the lifting platform 14 is at the upper limit position (above the jig 7) shown by the imaginary line in FIGS. 1 and 2. In this state, when the work W ₁ is placed on the two chains 40 and 41 of the lifting table 14, the worker pushes the work W ₁ and transports it to a predetermined position above the jig 7. At this time, the chains 40 and 41 synchronize with each other and move the work W ₁ while placing the work W _1.
The workpiece travels in the transport direction together with the workpiece.
W ₁ and chains 40, 41 do not slide against each other. As a result, even if the work W ₁ has an edge, the edge may catch on the chains 40, 41 or scratch the chains 40, 41, causing unpleasant noise or deforming the work W ₁ . Never. Also, work W ₁ is chain 40,4
1, it can be easily transported because it moves smoothly. When the workpiece W ₁ is stopped at a predetermined position, the piston rod 13a of the cylinder 13 is projected, and the link members 17, 18, 1
9 and 20 are collapsed, and the lifting platform 14 is at the lower limit position (a position below the jig 7) as shown by the solid line in Figures 1 and 2.
descend to. During this descent, the work W ₁ is transferred from the chains 40 and 41 to the jig 7, and after being positioned and fixed by the work fixing means 9a, 9b, etc. of the jig 7, it is transferred by a welding gun or the like (not shown). It is then processed. When the machining is completed, the fixation of the workpiece _W1 by the workpiece fixing means 9a, 9b... is released, and then the piston rod 13 of the cylinder 13 is released.
a is retracted and the lifting platform 14 rises to the upper limit position. During the ascent, the workpiece W ₁ is transferred from the jig 7 onto the chains 40 and 41. Then, when the lifting platform 14 stops at the upper limit position, the operator pushes the workpiece _W1 again to move it together with the chains 40 and 41 toward the next process.

(Effects of the Committee) As explained above, according to this invention, the pair of transport means on which the work is placed are provided so that they can travel in synchronization with each other in the same direction, so that the work and the transport means can slide. It is possible to prevent this from happening.
As a result, the conveyance means can be moved in the workpiece conveyance direction with the workpiece placed thereon, and the edges of the workpiece may catch on the conveyance means or scratch the conveyance means, causing unpleasant noises. It is possible to prevent this from occurring or deforming the workpiece. Further, the receiving means includes a gauge that receives the workpiece from the conveying means, and the pair of conveying means is raised and lowered by the elevating means between the workpiece receiving position and the non-receiving position of the gauge, so that, for example, the workpiece received by the gauge is processed. In this case, if the workpiece is placed on the conveyance means with the conveyance means in the non-receiving position, the workpiece is conveyed to a predetermined position on the gauge by the conveyance means, and the workpiece is lowered to the workpiece reception position by the lifting means. , can be received by the gauge of the receiving means. And when the processing is finished,
Conversely, the processed workpiece can be placed by the transport means at the receiving position, raised to a non-receiving position by the elevating means, and then transported by the transport means to the next processing position. Furthermore, since the rotation support means for rotationally supporting the receiving means is provided, the traveling direction of the conveying means, that is, the conveying direction of the workpiece can be freely changed. Due to the above effects,
Workpiece conveyance work and transfer work can be facilitated.

[Brief explanation of drawings]

Fig. 1 is an overall front view of one embodiment of the conveyance device according to this invention, Figs. 2 and 3 show the chain and lifting mechanism of the device in Fig. 1, Fig. 2 is a front view thereof, and Fig. 3 The figure is a plan view thereof, and FIGS. 4 and 5 are front views of the conventional conveyance device, respectively. W ₁ ...Work, 8...Base (receiving means), 9
a, 9b...Work fixing means (gauge), 31...
... Lifting mechanism (lifting means), 40, 41... Chain, {42... Guide roller, 43... Cylinder,
44...Strut} (rotation support means).

Claims (1)

[Scope of utility model registration request] a pair of conveying means capable of placing a workpiece and traveling in synchronization with each other in the same direction; a receiving means having a gauge for receiving the workpiece from the conveying means; provided on the receiving means and supporting the pair of conveying means;
A conveying device comprising: a lifting means for reciprocating a pair of conveying means between a work receiving position of the gauge and a non-receiving position above the gauge; and a rotation support means for rotationally supporting the receiving means. .