JP2824122B2 - Change device assembling method and its assembling structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a change device and a structure for assembling the change device, and more particularly, to a change device capable of easily positioning and assembling a change device via a heat insulator. And an assembling structure.

(Prior art)

Conventionally, as an assembling technology for assembling a change device to a vehicle body, a connecting rod of the change device is connected to a transmission in advance, and when assembling an engine to the vehicle body, a plurality of operators for mounting the change device from below the vehicle body. A method has been widely adopted in which a bolt is inserted into a bolt hole formed in an upper wall portion of a shaft tunnel of a vehicle body, positioned, and then the bolt is fastened with a nut to mount the change device to the vehicle body.

However, in the conventional method of assembling the change device, the operator has to insert a plurality of bolts into the bolt holes while supporting the change device, which requires much labor and reduces the efficiency of the assembling work. There was a problem. Therefore, recently, a technique has been adopted in which the change device is positioned and set on a pallet together with an engine, a suspension and the like, and the vehicle body is transferred to a predetermined position on the pallet to automatically assemble the change device.

[Problems to be solved by the invention]

When the change device is assembled using the pallet as described above, positioning cannot be performed only by connecting the change device to the transmission, and the exhaust system catalytic converter is placed on the pallet located below the change device. Since the heat insulator and the heat insulator are provided, there is a problem that a jig for positioning cannot be provided.

An object of the present invention is to provide a method of assembling a change device and a structure for assembling the change device, which can easily and accurately position the change device and mount the change device on a vehicle body.

[Means for solving the problem]

A method of assembling a change device according to claim 1, wherein the change device disposed so as to penetrate an upper wall portion of the shaft tunnel of the vehicle body is positioned and mounted on the vehicle body, wherein at least a lower surface side of the shaft tunnel is mounted. Positioning the change device with respect to a separate member partially covered and not attached to the change device, then positioning the separate member with respect to the vehicle body, and assembling the separate member and the change device to the vehicle body. It is assumed that.

The method for assembling the change device according to the second aspect is the first aspect.
In the invention, the separate member is a heat insulator disposed inside a lower portion of the shaft tunnel.

According to a third aspect of the present invention, there is provided an assembling structure of the change device, wherein the change device, which is disposed so as to penetrate an upper wall portion of the shaft tunnel of the vehicle body, is positioned and assembled to the vehicle body. A portion to be positioned is provided, and a reinforcing frame extending in the vehicle width direction is provided above the heat insulator disposed inside the lower portion of the shaft tunnel, and both ends of the reinforcing frame are fastened together with a fastening portion of the heat insulator to a vehicle body. The reinforcing frame is provided with an engaging portion at the upper end of the reinforcing frame with which the position-determined portion of the change device is engaged, and the reinforcing frame is positioned on the heat insulator via the fastening portion and the positioning portion is engaged. In the state where the change device and the reinforcing frame are positioned by engaging with the joint, the heat insulator and the change device It is obtained as assembled and positioned in the vehicle body.

[Action]

In the method for assembling the change device according to claim 1,
When assembling the change device to the vehicle body, first, the lower surface side of the shaft tunnel is at least partially covered, and the change device is positioned with respect to a separate member not attached to the change device. Positioning,
In this state, the separate member and the change device are assembled to the vehicle body. As described above, since the change device is positioned with respect to the separate member, there is no need to provide a jig for positioning the change device. Further, since the separate member is disposed below the change device, the change device can be easily positioned with respect to the separate member. Therefore, the change device is positioned with respect to the vehicle body via the separate member. Can be assembled.

In the method of assembling the change device according to claim 2,
Since the separate member is a heat insulator disposed inside the lower portion of the shaft tunnel, the heat insulator can be effectively used to position and assemble the change device with respect to the vehicle body via the heat insulator. I can do it. In addition, the same operation as the first aspect is achieved.

In the assembling structure of the change device according to claim 3,
When assembling the change device to the vehicle body, the reinforcing frame is positioned and provided above the heat insulator via the fastening portions at both ends thereof, and the positioned portion at the lower end of the change device is engaged with the upper end of the reinforcing frame. The change device is positioned on the reinforcing frame by engaging with the portion. When the heat insulator and the reinforcing frame are positioned at predetermined positions on the vehicle body in this state, the change device is positioned with respect to the vehicle body, and then the heat insulator and the change device are assembled to the vehicle body.

As described above, the change device has a simple structure in which the reinforcing frame is provided, the positioning portion is provided at the lower end portion of the change device, and the engagement portion with which the positioning portion of the change device is engaged is provided at the upper end portion of the reinforcement frame. Can be accurately positioned with respect to the vehicle body and assembled.

〔The invention's effect〕

According to the method of assembling the change device according to the first aspect, as described in the section of [Action], a separate member that at least partially covers the lower surface side of the shaft tunnel and is not attached to the change device is provided. Since the change device is positioned, there is no need to provide a positioning jig, and the change device can be easily positioned and mounted on the vehicle body.

According to the assembling method of the change device according to claim 2, since the separate member is a heat insulator disposed inside the lower portion of the shaft tunnel, the change device is effectively used by utilizing the heat insulator. It can be positioned and assembled to the vehicle body via the heat insulator. The other effects are the same as those of the first aspect.

According to the assembling structure of the change device according to the third aspect, the positioning portion is provided at the lower end portion of the change device, and the engaging portion with which the positioning portion of the change device is engaged is provided at the upper end portion of the reinforcing frame. With such a structure, the change device can be accurately positioned and mounted on the vehicle body.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In this embodiment, the present invention is applied to an assembling method and an assembling structure of a change device C in a subline L of an automobile assembly line.

First, the pallet P movably provided on the sub-line L will be described with reference to FIGS. However, the front, rear, left and right are defined and described based on the front, rear, left, and right of the vehicle body B.

The pallet P is for positioning and setting underbody parts such as the engine 1 and the suspension. The pallet P has a substantially rectangular frame shape in plan view. A sub-pallet 2 for setting front underbody parts such as a front side (not shown) is provided, and a first catalyst 4 and a second catalyst 4 provided in an exhaust pipe 3 are provided at an intermediate portion of the pallet P in the front-rear direction. A sub-pallet 6 for setting a sub-pallet 6 for setting a sub-pallet 6 for setting rear suspension components such as a rear suspension is provided at a rear portion of the pallet P.
Numerals 7 are fixed at predetermined positions on the pallet P at the left end and the right end, respectively.

Next, the setting of each component on the sub-pallets 2 and 6 will be described with reference to FIGS.
However, the setting of the components related to the assembly of the change device C will be described, and the description of the other components and the components set on the sub pallet 7 will be omitted.

The sub-pallet 2 is provided with a plurality of receiving stands 9 for supporting a frame 8, and the engine 1 for driving front wheels is provided.
The frame 8 on which is set is positioned by the positioning pins 10 provided on the front receiving stand 9 and the pin portions 11a of the positioning member 11 provided on the rear part of the sub pallet 2, and is supported by the receiving stand 9.

A receiving table 12 for supporting the first catalyst 4 is provided at a front portion of the sub-pallet 6, and a supporting portion 12 for supporting a heat insulator 20 mounted on the second catalyst 5 is provided at a rear portion of the sub-pallet 6. A setting table 13 is provided.
As shown in FIG. 4, a pair of left and right support members 14 and 15 are provided at the front and rear ends of the setting table 13, respectively, and the second catalyst 5 is supported on the rear side of the support member 14. Cradle 16 for
A pair of left and right positioning members 17 for positioning the heat insulator 20 on the vehicle body B is provided on the rear side of the receiving table 16.

An intermediate portion of the exhaust pipe 3 extending rearward from the engine 1 is supported by setting the first catalyst 4 and the second catalyst 5 on the receiving trays 12 and 16, respectively. It is supported by the pedestal provided in. As shown in FIGS. 1 and 2, a positioning member 18 for positioning the vehicle body B transferred from the main line at a predetermined position on the pallet P is provided on the sub pallet 2 and the sub pallet 7.
Is provided.

Next, a heat insulator externally mounted on the second catalyst 5
20 will be described with reference to FIGS.

The heat insulator 20 is slightly longer in the front-rear direction than the second catalyst 5, the middle part in the left-right direction forms an upwardly convex curved part 21, and the right part and the left part form a flange part 22 extending in the front-rear direction. ing. The front and rear portions of the curved portion 21 are formed in a stepped shape.

As shown in FIG. 4, the front and rear end portions of the left and right flange portions 22 are provided with the pin portions 14 of the support members 14 and 15 on the curved portion 21 side.
Insertion holes 23 and 24 through which a and 15a are inserted are formed, and insertion holes 25 through which the pin portions 17a of the positioning member 17 are inserted are formed on the curved portion 21 side of the left and right flange portions 22 in the longitudinal direction. An end of the flange portion 22 outside the insertion holes 23 and 24 forms a fastening portion 26, and a fastening hole 27 is formed in each of the fastening portions 26.

Next, a description will be given of the reinforcing frame 30 which is provided at the front of the heat insulator 20.

The reinforcing frame 30 is made of a strip-shaped steel material, and is shown in FIGS.
As shown in the figure, the middle part in the left-right direction forms a curved part 31 that is convex above the curved part 21 of the heat insulator 20, and the right and left flange parts 32 of the reinforcing frame 30 include: The insertion hole 23 and the fastening hole 27 of the heat insulator 20, respectively.
An engaging hole 35 and a fastening hole 34 are formed at the upper end of the curved portion 31, as shown in FIG.

The reinforcement frame 30 is welded to the heat insulator 20 with the left and right insertion holes 33 and the fastening holes 34 aligned with the insertion holes 23 and the fastening holes 27 of the heat insulator 20, respectively.

Next, the change device C will be described with reference to FIG.
As shown in FIG. 5, below the change lever 41, the change device C is connected to the upper wall portion 61 of the shaft tunnel 60 of the vehicle body B.
A base plate 42 is provided for fixing the bolt holes 42a at four corners of the base plate 42.
A nut 43 is fixed to the lower surface of the base plate 42 corresponding to.

Brackets 44 and 45 are fixed to the right and left portions of the rear lower surface of the base plate 42, respectively, and a positioning portion 46 engageable with an engagement hole 35 formed in the reinforcing frame 30 is provided at a lower end of the bracket 45. Is fixedly attached. Reference numerals 48 and 49 denote connection rods connected to the transmission of the engine 1, respectively, and reference numeral 50 denotes a housing member fixed to the base plate 42.

Here, the shaft tunnel 60 of the vehicle body B to which the change device C is mounted will be described.

As shown in FIG. 3, the upper wall portion 61 of the shaft tunnel 60 is provided.
An opening 62 through which the change lever 41 and the housing member 50 of the change device C can penetrate from below is formed, and through holes 63 corresponding to the bolt holes 42a of the base plate 42 are formed around the opening 62. Are formed.

As shown in FIG. 5 and FIG. 7, on the floor 65 near the left and right side walls 64 of the shaft tunnel 60, there are provided the fastening holes 27 of the heat insulator 20 and the fastening holes 66 respectively corresponding to the insertion holes 25. An insertion hole 67 is formed, and a nut 68 is fixed to the upper surface of the floor 65 corresponding to each fastening hole 66.

Next, a method of assembling the vehicle body B of the change device C will be described.

As described above, the engine 1, the exhaust pipe 3, the first catalyst 4, and the second
After setting the catalyst 5 and the like, the heat insulator 20 on which the reinforcing frame 30 is mounted is disposed on the setting table 13. At this time, the pin portions 14 of the support member 14 are inserted into the left and right insertion holes 23 and 33 of the heat insulator 20 and the reinforcing frame 30.
a, and the pin portion 15a of the support member 15 is inserted into the left and right insertion holes 24 of the heat insulator 20, whereby the heat insulator 20 is positioned with respect to the pallet P and formed on the pin portions 14a and 15a. Collar 14b
・ Supported by 15b. Thus, heat insulator 2
In a state where 0 is set, the pin portions 17a of the left and right positioning pin members 17 pass through the corresponding insertion holes 25 of the heat insulator 20.

Next, the connecting rods 48 and 49 of the change device C are connected to the transmission. In this state, the change device C
The base plate 42 is located above the front part of the heat insulator 20.

Next, as shown in FIG. 6, the positioning portion 46 of the positioning member 47 of the change device C is inserted into the engagement hole 35 of the reinforcing frame 30.
To be engaged. Thus, the portion 46 to be positioned is
By engaging with 35, the change device C is restrained in the vertical and horizontal directions, and is positioned with respect to the heat insulator 20.

Next, the vehicle body B is transferred from the main line to a predetermined position above the pallet P by an overhead type transporter, and thereafter, the vehicle body B descends to the pallet P side. At this time, the vehicle body B is first positioned with respect to the pallet P by inserting the positioning members 18 at the front and rear of the pallet P into insertion holes (not shown) formed in the front and rear portions of the vehicle body B. When the vehicle body B further descends in this state, the change lever 41 and the housing member 50 of the change device C pass through the opening 62 of the shaft tunnel 61, and the pin portion 17a of the positioning member 17 passes through the insertion hole 67 of the vehicle body B. Thus, the heat insulator 20 is positioned with respect to the vehicle body B, and
Stops after descending a little. In this state, the base plate 42 of the change device C contacts the lower surface of the upper wall portion 61 of the shaft tunnel 60, and each bolt hole 42a of the base plate 42 is
Of the insertion hole 63.

Next, as shown in FIG. 5, the robot 70 (not shown) provided on the sub-line L
68, the heat insulator 20 is assembled to the vehicle body B, the bolt 71 is fastened to the nut 43 from above, and the change device C is assembled to the shaft tunnel 60.
After that, the cover member 72 that covers the opening 62 is attached to the upper wall 61. Since the change device C is positioned with respect to the heat insulator 20 disposed below the change device C, the change device C can be easily positioned with respect to the vehicle body B without providing a positioning jig. Can be assembled. In addition, the positioning device 46 is provided at the lower end of the change device C, and the engaging frame 35 is provided in the reinforcing frame 30 to accurately position and assemble the change device C with respect to the vehicle body B. Can be done.

[Brief description of the drawings]

1 to 7 show an embodiment of the present invention. FIG. 1 is a plan view of a pallet, FIG. 2 is a side view of the same, FIG. 3 is a side view of a heat insulator and a change device, FIG. FIG. 5 is a plan view of the setting table, FIG. 5 is a sectional view taken along line VV of FIG. 3, FIG. 6 is a perspective view showing a portion to be positioned of the change device and an engaging portion of the reinforcing frame, and FIG. FIG. VII-VII sectional view. B ... body, C ... change device, 20 ... heat insulator, 26 ... fastening part, 27/34 ... fastening hole, 30 ... reinforcement frame, 35 ... engagement hole, 46 ... positioning part , 60…
... shaft tunnel, 61 ... top wall.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B62D 65/00 B60K 20/04

Claims (3)

(57) [Claims] 1. A method of positioning and assembling a change device disposed through an upper wall portion of a shaft tunnel of a vehicle body to a vehicle body, wherein the lower surface of the shaft tunnel is at least partially covered and the change device is A method of assembling a change device, comprising positioning a change device with respect to a separate member that is not attached, then positioning the separate member with respect to a vehicle body, and mounting the separate member and the change device to the vehicle body. . 2. The method of assembling a change device according to claim 1, wherein said separate member is a heat insulator disposed inside a lower portion of a shaft tunnel. 3. An assembling structure for positioning and assembling a change device disposed through an upper wall portion of a shaft tunnel of a vehicle body to a vehicle body, wherein a position to be positioned is provided at a lower end portion of the change device; A reinforcement frame extending in the vehicle width direction is provided above the heat insulator disposed inside the tunnel, and a fastening portion is provided at both ends of the reinforcing frame together with the fastening portion of the heat insulator and is jointly fastened to the vehicle body. An engaging portion is provided at the upper end of the frame with which the position-determined portion of the change device is engaged, and the reinforcing frame is positioned on the heat insulator via the fastening portion, and the change device is positioned via the position-determined portion and the engaging portion. With the reinforcement frame positioned, position the heat insulator and change device on the vehicle body and assemble them. A structure for assembling the change device, which is characterized by the following.