JPS63191523A - Jig pallet - Google Patents

Abstract

PURPOSE:To reduce the laborer's work and line space by installing a means for tentatively fitting a plurality of large-sized articles supported in shiftable ways in the both directions and a means for tentatively fitting a small part onto a jig pallet for assembling parts during transportation. CONSTITUTION:A hole 12 is formed on the basic board 11 of a jig pallet, and when a center beam (a) and front beam (b), or the center beam (a) and a rear beam (c) are fixed by bolts and nuts, insertion of a nut runner from below is permitted. On the upper surface, the center beam (a) can be positioned and fixed by a projection part 14, and a pair of receiving boards 15 for tentatively fitting the front beam (b) are installed, and a supporting pin 18 is installed in shiftable ways in the longitudinal and lateral directions, and a setting member 20 for turning the rear beam (c) around the axis center is installed in shiftable ways in the transverse direction, and a supporting pin 26 is installed. In the vicinity of the setting member 20, a receiving part for loading a stabilizer (e) is formed, and a pin for positioning arms f and f' and a pin for positioning engine mount rubbers (g) and (h) are planted between the front beam (b) and rear beam (c).

Description

[Detailed description of the invention] (゛Industrial application field) The present invention relates to a jig pallet used in an assembly department.

(Prior Art) In the assembly department, an assembly method is normally adopted in which parts stocked on the side of the conveyor are sequentially assembled to the assembly sent by the conveyor.

However, with this type of assembly method, when handling large assemblies such as automobiles with many models, it is necessary to provide a wide stock base around the assembly station to accommodate many parts and parts carts. In addition to the problem that the parts cannot be assembled from the stock, there are also problems such as having to take out the parts one by one from this stock and assemble them, which imposes a heavy work burden on the operator.

This application was filed in Japanese Patent Publication No. 57-4934 in response to such problems.
The device proposed in Publication No. 1 eliminates the need for a stock base in the assembly department by installing an assembly processing line and a parts supply line in parallel, and significantly reduces the workload on workers. However, such a device t! Even if used, when handling large assemblies, the space between hands and parts supply lines becomes too large, forcing workers to work in a half-hearted manner, forcing them to do difficult work. .

(Purpose) The present invention was made to drastically improve these problems, and its purpose is to create a new jig pallet that can drastically reduce the work burden on workers and the line space. It is about providing.

(Means for Achieving the Object) That is, the present invention provides a jig pallet for achieving the object, in which at least one set is supported movably in the plane direction on a pallet on which parts are assembled on a conveyance device. A temporary fixing means for a plurality of large parts is provided, and a temporary fixing means for small parts to be assembled to the large part is provided in a space outside the large parts. - (Example) The details of the present invention will be described below based on illustrated examples.

The embodiment shown in FIG. 1 is constructed as a jig pallet used in the process of assembling a subframe that serves as a support frame, particularly when mounting an engine on a vehicle body.

The base] 1 forming the main body of this jig pallet 1 is shown in Fig. 3 (
As shown in b), it is formed as a rectangle that is slightly larger than the external dimensions of the subframe, and holes 12 and 12 are provided approximately at the center of the rectangle, so that the center beam a and the front beam b, and the center beam a and the rear beam c % is configured so that the tightening tip of the nut runner can be inserted from below when fixing with bolts and nuts, and a receiving part is provided on the top surface of the nut runner to tie the bolts and nuts together. A stand 13 is provided, and the structure is such that snow can be determined and fixed at the center dome by means of protrusions 14 protruding from the support stand 13. This base 11 is provided with a pair of movable pedestals 15 and 15 on both sides of the rear thereof, to which the front beam b is temporarily fixed. are fitted to the guide member 16 on the base 11 so as to be slidable left and right, and the guide members 1.5. t) is fixed, and a slide plate 17 with support pins 18, ]8 implanted on the upper surface is fitted here so that it can slide back and forth, and the position N of the bolt hole E) t can be changed. The front beam b of various types of vehicles can be temporarily fixed using support pins 18.18.

On the other hand, a pair of rear beam set members 2 that can rotate the rear beam C around its axis are located on both sides of the front of the base 11 relative to the movable pedestal 15 described above.
Slide plate 20alFr with 0.20 fixed to its lower end
It is attached so that it can slide left and right by fitting into the guide member 21 on the base 11. As shown in FIG. 2, this rear beam set member 20 is rotatably attached to a support plate 22 erected on a slide plate 20a and a shaft 23 that is loosely fitted on the upper part of the support plate 22. 24, and the horizontal plate portion 24a of the movable holding frame 24, which has an angular cross-section, has a recessed portion in a laterally protruding portion of the support plate 22 that fits into a circular protrusion on the inner surface of the end portion of the rear beam C. A lower clamping piece 25 provided at 25at and a pin 26 inserted into a fixing hole C1 of the vehicle body drilled in the rear beam C are fixedly provided, and a rod 28 is fixed to a sleeve 27 fixed to the vertical plate portion 24b of the movable holding frame 24. is inserted horizontally, and its end (this is the end of the rear beam C, a recess 29 that fits the circular protrusion on the outer surface)
An upper clamping piece 29 provided with a is fixed. Further, a handle 30 is attached to this O-rad 28 and is slidable only in the axial direction by fitting into a key groove formed in the axial direction, and a protrusion 30a provided at the end of the handle 30 is attached to the vertical plate portion 24b. By moving the handle 3o to the left in the figure while making sliding contact with the attached guide slope 31, the upper clamping piece 29 at the end of the rod 28 is made to lie down on one side C with the rear. Further, on the back surface of the support plate 22, a disc 32 is installed which rotates integrally with the movable holding frame 24 via a shaft 23, and several dowel holes 32a are bored on this surface. A bottle 34 inserted into a bracket 33 on the back surface of the support plate 22 is attached to and detached from the support plate 22. After rotating the movable holding frame 24 one time as a fulcrum for the shaft 231Fr, the bottle 34 is rotated in a circular motion. By engaging with any one of the adjustment holes 32a of the plate 32, the upper and lower clamping pieces 25, 29 and the pin 26 support the pin 26 so that it can be rotated and positioned around its axis. The steering box d is also mounted on the base 11 when the rear beam C is reversed.
A receiving portion 35 for receiving a steering wheel (not shown) and a nion.
35 are fixedly installed on the left and right sides for right-hand drive and left-hand drive.

Again, on Figure 1.3 (back to the base) 1 are temporary fixing parts for large functional parts such as the center dome a, front beam b, and rear beam C, as well as small parts to be assembled. A temporary fixing part is provided using the remaining space. That is, a receiving part 36,36 on which the stabilizer e is placed is provided in the vicinity of the rear arm set member 20 together with the clamping pieces 36a, 36a. Also, in the space between the front beam b and the rear arm C, there are left and right lower arms f.
, f', and bins 38, 38 for positioning the front engine mount rubber 9Bt and rear engine mount rubber hv, respectively.

Reference numerals 39 in the figure indicate holes for temporarily fixing the base 11 onto a parts cart 40, which will be described later.

By the way, FIG. 4 shows the transport system for this jig pallet 10, and the cart 4o carried into and out of the parts delivery department 50 and the empty pallet storage department 80 carries frame materials as shown in FIG. 41... is constructed as a cart with casters 42, and its vertical frame 41...
A plurality of angles 44 with rollers 43 on...
Several jig pallet storage spaces are provided internally by horizontally arranging the jig pallets 10 at equal intervals, and the jig pallets 10 are installed in the locking bins 45 installed at both ends of each angle 44. It is configured such that displacement of the position is suppressed by engaging holes 39 provided at the four corners of.

This parts delivery section N50 is equipped with a rail 51 that guides the cart 40G to the next assembly conveyor 6o, a direction changer 52 that moves the empty cart 40 to the empty pallet storage section 80, and a cylinder 53 for moving the cart ( A fork 55 extending back and forth and a lid 56 are provided between the parts delivery department 50 and the assembly conveyor 6o.

The assembly conveyor 6o is composed of two stages, upper and lower. The upper stage is provided with a transport conveyor 61 that transports the jig pallet 1o loaded with parts to each assembly station in a tact manner, and the lower stage is equipped with an empty jig pallet 1o. A free-flow return conveyor 65 is provided to return the jig pallet 10 that has been used. connected to each other. Further, the end of the return conveyor 65 is provided with a fork 85 that protrudes forward and backward in the empty pallet storage section 80, and is opposed to a lid 86, and is used to send the empty jig pallet] 0 conveyed here to the empty pallet storage section 80. It is configured to be housed on a cart 4o and carried out. Note that the reference numeral 62 in the figure indicates rollers provided on the upper surface of the starting end of the conveyor 61.

The jig parent 10 configured in this manner includes a center beam a, a front beam b, and a rear beam C made by a parts manufacturer.
．． 15.2o, and in the other remaining spaces, the stabilizer e, lower arm f%f' and engine mount rubbers 9 and h are attached to the receiving part 36 and the pin 37, respectively.
．． Several jig pallets 10 are temporarily fixed by 38, and a set of sub-frames is roughly placed in this manner.
- are inserted from the side into each storage space of the trolley 4o divided by the angle 44, and holes 39 and provided at the four corners are inserted.
. . , and temporarily fastened onto each angle 44.

Then, the jig pallets 1 are loaded all at once on the trolley 40.
o is then transported to the parts trolley delivery department 50, and the lifter 5
6 are sequentially pulled out from inside the cart 40, transferred to the upper stage of the assembly conveyor 60, and then conveyed to the assembly department.

In the assembly department, when the jig pallet 10 is sent, workers remove the rear engine mount rubber h etc. temporarily fixed on it and attach it to the predetermined locations of each functional part, as well as attach it to the rear beam set member 20. After pulling out the screw 34 that holds the movable holding frame 24, rotate the holding frame 24 by the handle 30, and insert the pin 34 into the dowel hole 32a on the disc 32 at that position. By doing so, the rear beam C is inverted and fixed, one end of the lower arms f and f' is attached thereto, and it is returned again with a loose fit.
While adjusting the movement of the upper front beam b according to the model,
A series of assembly operations such as fixing the center beam a, front beam b, and rear beam C using a nut runner inserted through the hole 12 from the back side of the base 1 is performed.

This is how all the assembly processes are done lol! The subframe that has passed through the engine is finally sent directly below the engine conveyor 70 together with the jig pallet 10, where it is integrated with the engine and removed from the jig pallet]0.

Finally, the empty jig pallet 10 is lowered to the lower position by the lift 63, and then transferred to the return conveyor 65.
The pallets are then transferred to the empty pallet storage section 80, where the empty carts 40 are stored via the helical lifter 86, and then returned to the parts manufacturer.

(Effects) As described above, according to the present invention, a jig pallet for assembling parts on a conveying device is provided with temporary fixing means for a plurality of large parts supported movably in the plane direction, at least one set. At the same time, since temporary fixing means for small parts is provided in the space outside of the arrangement of these parts, the required parts can be assembled on a single transport device without requiring a stock base for parts, etc. This makes it possible to significantly reduce line space and to significantly facilitate parts management.

Moreover, since temporary fixing means for large parts and small parts is provided on the same pallet, small parts can be assembled to large parts on the spot, which greatly reduces the work burden, and at least Since the assembly temporary fixing means is movable in the plane direction, even when multiple models of parts with different dimensions etc. are simultaneously fed to the same production line, it is easy to assemble them according to the model. can.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a jig pallet constituting an embodiment of the present invention, Fig. 2 (aXb) is a front view and top view of a rear beam set member arranged on the pallet, and Fig. 3 (aXb) )
4(a) and 4(b) are perspective views showing the conveyance path of the pallet, and FIG. 5 is a perspective view showing the temporarily fixed state of the parts on the barrette and the completed assembly state, and FIG. 5 is a perspective view showing the pallet transport path. FIG. 10...Jig pallet 11...Base 13.
... cradle 15... movable pedestal 20...
・・Rear beam set member 37. 38・・・Temporary fastening of small parts 40・・・・
Trolley a...Center beam b...Front beam C...Rear beam f...Lower arm ゛

Claims (1)

[Claims] 1. At least one set of temporary fastening means for a plurality of large parts supported movably in a plane direction is provided on a pallet on which parts are assembled on a conveying device, and A jig pallet characterized in that a temporary fixing means for small parts to be assembled to the large part is provided in a space outside the arrangement. 2. The jig pallet according to claim 1, wherein at least one set of the temporary fixing means for the large parts is constructed as temporary fixing means capable of rotationally fixing the large parts about an axis.