JP2000190136A - Positioning jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the versatility of a positioning jig and also facilitate the set of a work and reduce the obstacle which can disturb the entering of a weld gun. SOLUTION: This is a positioning jig for positioning respective constitution parts in the assembly process of a work and the jig main body is separated to an upper jig 10 and lower jig 30 and for the lower jig 30, the standard (standard post 34) for positioning the work constitution parts common to respective car kinds is summerized and provided. In the upper jig 10, the standard (standard post 14) for positioning the work constitution parts changed by the car kinds is provided. The standards of both jigs 10, 30 are arranged so as to position the constitution parts of the work from the inside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine compartment assembly (E / C
The present invention relates to a positioning jig for positioning various components (sub-assemblies) of the E / C assembly in an assembling process.

[0002]

2. Description of the Related Art A positioning jig of this type is disclosed in, for example, JP-A-3-43025 or JP-A-10-1.
The technique disclosed in Japanese Patent No. 66230 is known.
These techniques are configured such that a member serving as a reference for positioning a work with respect to a pallet main body can be individually attached or a substrate provided with various reference members can be attached and detached. Thereby, the reference member or the substrate suitable for the type of the work can be selected and exchanged, thereby enabling positioning corresponding to various works.

[0003]

However, the aforementioned E
In the assembly process using / C Assy as a workpiece,
If the shape of the work changes depending on the type of vehicle, the reference member and the substrate must be replaced each time, and the versatility as a positioning jig is low. Also, in the case of positioning jigs such as E / C Assy, a reference post for positioning each component is often placed outside the work. Not only does it hinder the penetration of the welding gun.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to increase the versatility of a positioning jig, to facilitate setting of a work, and to reduce obstacles that hinder the penetration of a welding gun. It is to be.

[0005]

Means for Solving the Problems The present invention is to achieve the above object, and the invention according to claim 1 is a positioning jig for positioning each component in a work assembling step, The jig body is separated into an upper jig and a lower jig, and the lower jig is collectively provided with references for positioning a work component common to each vehicle type. The upper jig is provided with a reference for positioning a work component that changes depending on the vehicle type. Moreover, the reference of both jigs is arranged so as to position the components of the work from inside.

[0006] As described above, since the reference for positioning the work components common to each vehicle type is collectively provided for the lower jig, the reference for the upper jig is selectively used according to the vehicle type. Or, by selecting the use of the upper jig itself, versatility as a positioning jig is improved. In some cases, it is possible to respond to a model change of a vehicle simply by changing the upper jig, and in such a sense, the versatility is high.

Further, since the reference of both jigs is located inside the work, the work of setting the work on the jig main body becomes easy. Further, although spot welding is usually performed from the outside of the work, the reference does not hinder the penetration of the welding gun, and the welding operation can be performed efficiently.

The upper jig and the lower jig are, specifically, frame structures, each of which is constituted by a column-shaped reference post fixed to the frame and its attached parts. . When there are many target vehicle types, only the upper jig may be replaced depending on the vehicle type. For this purpose, it is necessary to prepare a plurality of types of upper jigs having different standards.

According to a second aspect of the present invention, there is provided the positioning jig according to the first aspect, wherein the upper jig and the lower jig are provided with a clamper for holding the components of the work in a state of being positioned with respect to respective references. , Of these clampers,
Those that clamp the work from the outside are arranged so as not to hinder the entry of the welding gun. In this case, the clamper which is indispensable for the positioning jig does not hinder the welding, and the easiness of the welding operation can be maintained.

[0010]

Embodiments of the present invention will be described below. FIG. 1 is a front view showing a positioning jig of an E / C assembly, and FIG. 2 is a right side view of FIG. As is apparent from these drawings, the positioning jig includes the upper jig 10 and the lower jig 3.
The two jigs 10 and 30 constitute a "jig body". And both jigs 10,3
0 is based on the frames 12 and 32 individually, and the frame 12 of the upper jig 10 can be lifted up from the illustrated state by a lifter, a robot, or the like (not shown). On the other hand, the frame 32 of the lower jig 30
Is installed on the floor.

Now, the frame 12 of the upper jig 10
Four reference posts 14 are fixed downward. The adjacent reference posts 14 are mutually connected by a reinforcing beam 15. The reference post 14 and its attached parts constitute a "reference" for positioning a predetermined component (sub-assembly) of the work 50 (E / C Assy) from the inside as necessary. Further, the frame 12 is provided with a total of about eight clampers including the clampers 16 located on both sides and the clampers 20 located on the upper surface. Each of these clampers 16, 20
Is capable of clamping and unclamping the work 50 by controlling the driving of the individual air cylinders 18 and 22.

Four reference posts 34 are fixed upward to the frame 32 of the lower jig 30, and are arranged at intervals corresponding to the respective reference posts 14 of the upper jig 10. Moreover, the reference post 1 of the upper jig 10
The ends of the lower jig 4 and the reference post 34 of the lower jig 30 are fitted to each other in a state where the jigs 10 and 30 are docked as shown. The frame 32 is
A total of about seven “standards” are provided by the standard post 34 and other parts.
No. 0 (sub-assembly) is positioned from the inside.

The "reference" of the lower jig 30 is configured so that the components of the work 50 common to each vehicle type can be positioned. On the other hand, the “standard” of the upper jig 10
Is configured to position the components of the work 50 that vary depending on the vehicle type as necessary. A plurality of clampers including the clampers 36 and 40 are provided on the frame 32 of the lower jig 30. Each of these clampers 36, 40 is provided with a respective air cylinder 3
The clamp control and unclamping of the work 50 can be performed by the drive control of 8, 42.

Now, among the various sub-assemblies constituting the work 50, that is, the E / C assembly, a sub-As common to each vehicle model is used.
The dash Assy, the radiator support Assy, and the Assy combining the apron and the front side member, which are sy, are held while being positioned on the lower jig 30.
In this positioning operation, a sub-assembly common to each vehicle type is assembled and positioned from the outside with respect to the reference post 34 and the reference pin 35 of the lower jig 30 and clamped by the clampers 36 and 40 described above.

That is, since the "reference" of the lower jig 30 positions the common sub-assembly of the work 50 from the inside thereof, the setting of these sub-assemblies becomes easy, and the spot welding between the sub-assemblies is easy. "Standard"
Does not hinder the penetration of the welding gun. Also, the lower jig 30
In the above, the clamper 36 and a part of the clamper 40 which clamp the work 50 from the outside are also provided at positions where the penetration of the welding gun is not obstructed as much as possible.

Depending on the type of vehicle, the upper jig 10 is docked to the lower jig 30 as necessary, so that the ends of the individual reference posts 14 and 34 are fitted to each other as shown. The sub-assembly that is changed depending on the vehicle type in the E / C assembly is held in a state where it is positioned with respect to the upper jig 10. Regarding the positioning in this case, the sub-assembly is attached to the reference post 14 of the upper jig 10 from the outside, and the above-described clampers 16 and
Clamp by 20.

As described above, the sub-assembly different for each vehicle type is also positioned from the inside thereof by the reference post 14, which is the "reference" of the upper jig 10, and its attached parts. Therefore, the setting of these sub-assemblies is easy, and the “reference” does not hinder the penetration of the welding gun during spot welding. In the upper jig 10 as well, the clamper 16 which clamps the work 50 from the outside is provided at a position which does not hinder the entry of the welding gun as much as possible.

As described above, with respect to the lower jig 30, since a work component (sub-assembly) common to each vehicle type can be positioned, the upper jig 10 is moved to the lower jig 30 according to the vehicle type.
Can be applied to each model only by docking selectively, and its versatility is improved. Note that the upper jig 10 is selectively used in the reference post 14 and the clamper 1.
There are cases where the upper jig 10 is used selectively and cases where the upper jig 10 itself is used or not.
In some cases, it is sufficient to prepare only the upper jig 10 corresponding to a vehicle model change or the like.

In the present embodiment, the E / C assembly of the vehicle has been described as an example of the workpiece 50 to be positioned. It is not limited to / C Assy.

[Brief description of the drawings]

FIG. 1 is a front view showing a positioning jig.

FIG. 2 is a right side view of FIG.

[Explanation of symbols]

 Reference Signs List 10 upper jig 14 reference post (reference) 16 clamper 20 clamper 30 lower jig 34 reference post (reference) 36 clamper 40 clamper 50 work

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tetsushi Hayashi 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation F-term (reference) 3D114 AA04 AA12 BA26 CA05 DA17 GA08

Claims (2)

[Claims] 1. A positioning jig for positioning each component in a work assembling step, wherein a jig main body is separated into an upper jig and a lower jig, and each of the lower jig is provided with a vehicle type. Standards for positioning common work components are provided collectively, and upper jigs are provided with standards for positioning work components that vary depending on the vehicle type. A positioning jig arranged to position components from inside. 2. The positioning jig according to claim 1, wherein
The upper jig and the lower jig are provided with clampers for holding the components of the work in a positioning state with respect to the respective standards. Of these clampers, those that clamp the work from the outside do not prevent the welding gun from entering. The positioning jig is arranged as follows.