JPH01127464A - Assembly device for automobile pedal bracket - Google Patents

Abstract

PURPOSE:To make it possible to automatically assemble a pedal bracket to the passenger compartment side surface of a dashboard with a high degree of accuracy by enabling a robot to set the pedal bracket on the dashboard, and then to assemble them. CONSTITUTION:A jig frame 2 which faces a dashboard B and may perform vertical and vehicle-widthwise floating motions is supported on a robot arm 1 which is insertable into the passenger compartment. The jig frame 2 is provided therein with a means for positioning the jig frame 2 to the dashboard B, a holding means 6 retractable in the vehicle longitudinal direction, for holding a pedal bracket, and a fastening means 7 for fastening the pedal bracket and a brake booster together. Further, the jig frame 2 is provided therein with a correction means 8 for gripping a push rod in the brake booster A adapted to project into the vehicle compartment through the dashboard B in an aligned condition so as to correct the attitude of the brake booster A.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an assembly device for an automobile pedal bracket that pivotally supports pedal members such as a brake pedal and an accelerator pedal. The present invention relates to an assembly device in which the pedal bracket and a brake booster, which is preset on the engine compartment side surface of the dash board, are clamped together and tightened together by sandwiching the dash board.

(Prior art) Conventionally, when assembling a pedal bracket, the brake booster was manually set on the engine room side surface of the dash board so that the stud bolts attached to the brake booster were inserted into the bolt insertion holes of the dash board. Next, set the pedal bracket on the surface of the dashboard facing the passenger compartment so that the stud bolt is inserted into the mounting hole formed on the pedal bracket, and then tighten the nut onto the stud bolt from the passenger compartment side to secure both. I try to tighten them together.

(Problems to be Solved by the Invention) Assembling the pedal bracket manually as described above has poor productivity, and even if the brake booster setting work is done manually, the pedal bracket setting and assembly work is difficult. Automation is desired.

By the way, if you release the brake booster after setting it on the engine room side surface of the dash board as described above, the attitude of the brake booster will tilt due to its own weight, and the axis of the stud bolt will tilt with respect to the hole axis of the bolt insertion hole. If the pedal bracket is set on the passenger compartment side of the dash board in this state, the stud bolts will interfere with the pedal bracket and be pushed toward the engine compartment, causing the brake booster to fall off the dash board.There is no way to solve this problem. This is an issue in trying to automate.

SUMMARY OF THE INVENTION An object of the present invention is to provide a device that solves this problem and enables automatic assembly of a pedal bracket.

(Means for Solving the Problems) In order to achieve the above object, the present invention sets a pedal bracket on the surface of the dash board on the passenger compartment side, and sets the pedal bracket and the dash board on the surface of the dash board on the engine room side in advance. In this assembly device, a brake booster and a brake booster are fastened together by sandwiching the dash board, and a robot arm that can be inserted into the vehicle interior is equipped with a robot arm that can float vertically and in the vehicle width direction while facing the dash board. The jig frame supports a jig frame, and the jig frame includes a positioning means for positioning the jig frame with respect to the dash board, a holding means that holds the pedal bracket and is movable in the longitudinal direction of the vehicle, and a pedal bracket and a brake booster. The present invention is characterized in that it is provided with a tightening means for tightening, and a correcting means for correcting the posture of the brake booster by gripping the push rod of the brake booster protruding into the vehicle interior through the dash board in a centered state.

(for production) The jig frame is moved into the vehicle interior by the movement of the robot arm.

is inserted into the dash board and advanced to a predetermined assembly position facing the passenger compartment side surface of the dash board, and then the positioning means is activated while floating the jig frame in the vertical direction and vehicle width direction, and the jig frame is moved against the dash board. Position the jig frame.

According to this, the pedal bracket held by the holding means on the jig frame is positioned with respect to the dash board such that the hole axes of the mounting hole formed in the pedal bracket and the bolt insertion hole formed in the dash board coincide.

Next, the push rod of the brake booster that protrudes into the vehicle interior is held by the correction means to correct the posture of the brake booster. According to this, the push rod of the brake booster that is inserted into the bolt insertion hole is inserted into the insertion hole. The hole axis of the pedal bracket is corrected, and the axis of the stud bolt is aligned with the hole axis of the mounting hole of the pedal bracket.If the holding means is moved forward in the vehicle length direction toward the dash board in this state, the stud bolt will be removed. is inserted into the mounting hole, and the pedal bracket is accurately set on the passenger compartment side surface of the dash board.

Finally, the tightening means is operated to tighten the nut onto the stud bolt, thereby tightening the pedal bracket and brake booster together.

(Embodiment) As shown in FIG.
The four stud bolts A, which are planted in Each stud bolt A is inserted into the first mounting hole C1, and the dash board B is inserted into the two second mounting holes C2 formed on the diagonal part of the front surface of the pedal bracket C.
so that each stud bolt B2 installed in
After automatically setting it on the passenger compartment side surface of the dash board B, tighten the nuts D to each stud bolt A1 and attach the pedal bracket C and brake booster A to the dash board B.
At the same time, tighten the nuts D into each stud bolt B2 to fasten the pedal bracket C to the dash board B, and then attach the pedal bracket C to the rear end of the stay 03 extending rearward from the front surface of the pedal bracket C. 3. An embodiment in which the present invention is applied to an assembly device in which a handle mounting stay (not shown) is fixed to the vehicle body in the mounting hole C6, and is fastened with a bolt E, and at the same time an insulator F is mounted on the passenger compartment side surface of the dash board B. shows.

In addition, the pedal bracket C includes a brake pedal P1 and an accelerator pedal P2, as shown in FIGS. 14 and 15.
, a clutch pedal P3 are pivotally supported, and a push rod A2 protruding from the brake booster A is connected to the brake pedal P1.

Referring to FIGS. 1 to 3, (1) shows a robot arm attached to the operating end of an assembly robot (not shown);
The arm (1) can be freely inserted into the passenger compartment through the door opening of the vehicle body W with its longitudinal direction facing the vehicle width direction (hereinafter referred to as the lateral direction). A rectangular jig frame (2) is attached, and the movement of the arm (1) moves the jig frame (2) to the dash board B.
It is made to move forward to a predetermined assembly position opposite to.

The jig frame (2) shall be attached to the robot arm (1) via two sets of parallel links (3) (3), one pair each on the upper and lower sides, and the arm (3) of each link (3). 1) and the jig frame (2) are configured with spherical joints (3a), and the jig frame (2) is connected between each upper parallel link (3) and the arm (1). ) bearing the weight of the spring (3
b), so that the jig frame (2) can be floated vertically and laterally by the movement of these parallel links (3) while facing the dash board B, and the robot arm ( A lock cylinder (4) having a lock pin (4a) at the tip that fits into the positioning hole formed in the jig frame (2) is attached to the parallel link arrangement part of 1), and the cylinder (4) is normally operated. The jig frame (
2) was restrained in a fixed position relative to the arm (1).

The jig frame (2) includes a positioning means (5) for positioning it with respect to the dash board B, and a pedal bracket C.
A holding means (6) and a tightening means (7), a correction means (8) for correcting the posture of the brake booster A, and a holding means (9) and a locking means (10) for the insulator F are provided, To explain this in detail, as shown in FIGS. 7 and 8, the positioning means (5) has a cylinder (11a
) is provided with a movable plate (l'D) that moves forward and backward along the vehicle length direction, that is, the longitudinal direction, along the guide bar (11b) (11b), and a locate pin that fits into a reference hole formed in the dash board B is provided on the movable plate at. After advancing the jig frame (2) to the assembly position, the jig frame (D) is released from the lock cylinder (4) and placed in a floating state. In addition, the locate pin Ob
is moved forward by the operation of the cylinder (11a) and fitted into the reference hole, and the positional deviation of the jig frame (2) in the vertical and lateral directions with respect to the dash board B is corrected by the locating action caused by this fitting. .

The holding means (6), as shown in FIGS. 4 to 6,
The guide rail (13b) (13
A movable frame q3 that moves forward and backward in the vehicle length direction along b) is suspended, and a pivot CG for the brake pedal P1 installed horizontally on the stay 03 of the pedal bracket C described above is attached to the upper front end of the movable frame a3. A pair of left and right clamp plates a@aΦ each having a socket part (14a) for receiving each end are connected to a cylinder (1
4b) is supported so that it can be opened and closed in the lateral direction along the guides (14c) and (14c), and the pedal bracket C is gripped at the pivot axis C by the closing movement of both clamp plates (lΦqΦ). In this case, in order to prevent the pedal bracket C from tilting about the axis C5, a crescent-shaped bottle (14d ) and a presser piece (14e) made of a leaf spring and seated on the upper surface of the front end of the stay C3.

The tightening means (7) has a cylinder (15) attached to the movable frame (2).
a) A first slide frame 09 that moves forward and backward in the vehicle length direction along the guide bars (15b) (15b) is provided, and the slide frame (4 slide frames collinear with the pedal bracket C and the brake booster A at +51) is provided. 2 which fastens the first nut runner (161) and the pedal bracket C to the dash board B.
In addition to being equipped with the second nut runner (162) of the book,
A second slide frame (+?) is provided at the bottom of the movable frame (2) and is moved diagonally upward and backward along guide bars (17b) by a cylinder (17a).
1 is equipped with a third nut runner (163) for fastening the pedal bracket C to the handle mounting stay, and these first to third nut runners (161) (16
2) Attach the socket (16b) at the tip of the output shaft (16a) of (16a) to each of the first to third attachment holes CI, C2, and C4 of the pedal bracket C held by the holding means (6). It was positioned on the axis of the hole.

In addition, since the position of the first mounting six C1 changes in the horizontal direction depending on the model, the output shaft (16) of each first nut runner (161)
a) is provided with a universal joint (16c), and the first
A pair of left and right third slide frames G&(lε) are provided on the slide frame (+51), which are moved laterally back and forth by cylinders (18a) via guide bars (18b) and (18b), respectively.
The output shafts (16a) (16a) of the two first nut runners (161) (16t) on each side of the third slide frame ■
The upper and lower parts 1 are each pivotally supported by the front part of the universal joint (16c).
A pair of sleeves (18c) (18c) is provided to provide and obtain lateral positional adjustment of the socket (16b) of each first nut runner (161). In addition, a universal joint (16c) is also provided on the output shaft (16a) of the second nut runner (162) on the left in FIG. 4, and the socket (16b) at the tip of the output shaft (16a) is connected to the pedal bracket C. It was offset upward with respect to the axis of the nut runner (162) so as to match the hole axis of the second mounting hole C2 at the upper left side of the nut runner (162).

The correction means (8), as shown in FIGS. 7 and 8,
A support arm a9 having a substantially U-shape when viewed from the front is attached to the front end of the bracket (2a), and the arm a! A fixed claw ■ and a movable claw ■ are provided at the tip of the arm A9 to grip the push rod A2 of the brake booster A that protrudes into the vehicle interior through the dash board B. The opening/closing cylinder (21a) attached to the opening/closing cylinder (21a) can be freely opened and closed via the link mechanism (21b), and the closing action of the movable claw (2) causes a push rod A to be inserted between this and the fixed claw (2).
2 can be held in a cored state. In addition, support arm a! Il indicates that when the pedal bracket C is set on the holding means (6) or when the jig frame (2) is retracted after assembly, the correcting means (8) moves the brake pedal P1 or the clutch pedal P3.
The relief cylinder (19a) is designed to be able to swing freely around the pivot (19b) at the tail end from the upper operating position to the lower relief position so as not to interfere with the operation.

The holding means (9) for the insulator F is attached to a jig frame (2).
) and a pair of clamp members that grip the ends of the insulator F, which are provided at both longitudinal ends of the insulator F.
A pair of pressing members Q3■ that presses forward the slightly inner portion of the end of the insulator F, and a clamping means [phase] that grips the upper edge portion of the insulator F, which is provided on the left side of the jig frame (2). , and a plurality of suction members (2) that suction the insulator F in the vicinity of the clip-fastened portion (to be described later).

Further, the locking means (10, as shown in FIG. 9, is a cup-shaped clip G having a claw piece G at the bottom that engages with an engaging element B3 protruding from the dash board B) is formed at its open end. A pair of suction cups QBQB adsorbed on flange G2
The clip holding plate ■, which is fitted with a pusher ■ that can be freely fitted to the clip G, is attached to the guide bar ■b) by a cylinder (28a) at the front end of a bracket (2c) protruding from the front of the jig frame. (28b), and in this embodiment, the insulator F is secured to the dash board B at two clip securing locations on the left and right sides. 00 was provided in one pair.

Referring to FIGS. 10 to 12, ■ indicates a setting jig to be placed on the side of the placement part of the assembly robot, and the setting jig ■ has an insulator F on its upper surface with its front side down. It is equipped with a set frame ω that can be set freely, and a set stand ■ that can freely set a pedal bracket C on the upper surface of the right side of the set frame ω, and an insulator F is attached to both end edges of the set frame ω.
Both ends of the clamp member c! A pair of guide frames (30a) (3)a) erected so that they can be gripped by 21c21
and the upper edge of the insulator F on the negative side edge.

A guide piece (3ob) is provided to stand up the part so that the part can be held by the clamp member [phase], and the setting table (1)
, a clamp member (
31a), and a total of six nut set members (2) that matched with the respective assembly holes C1, C2 of the pedal bracket C were provided on the upper surface of the set table (2). Also, attach the mounting hole C4 of the stay 03 at the upper end of the pedal bracket D to the setting jig (■).
Attach the bolt set member ■ that matches the relief cylinder (33a
), so as to be able to swing outward in the axial direction of the mounting hole C4, and furthermore, a pair of clip set members (to) are provided on the upper surface of the set frame ω to match each clip fixing location of the insulator F. Ta.

Next, the operation of the above embodiment will be explained.

First, place the insulator F on the setting frame ω of the setting jig ■.
and the pedal bracket C on the set table ■, and tighten nuts D1 and bolts E to each set member G2+■■.
1 clip G is set, and by the operation of the assembly robot, the jig frame (ri) is lowered onto the setting jig ■ in a downward position, and the pedal bracket C and the insulator F are respectively held by the holding means (6) and (9). and each nut runner (161) (162) (1) of the tightening means (7).
The socket (16b) of 63) and the clip holding plate (10 of , and advance it to the predetermined assembly position facing the dash board B. At this time, the holder (
6) is moved backward with respect to the jig frame by the movement of the movable frame 0@, and the support arm (19) of the correction means (8) is swung to the operating position.

Here, the brake booster A is installed in advance on the engine room side surface of the dash board B so that each stud bolt A1 is inserted into each bolt insertion hole B1 of the dash board B and the push rod A2 projects into the passenger compartment through the dash board B. Set it to .

Next, with the jig frame (2) in a floating state, fit the locate pin (2) of the positioning means (5) into the reference hole of the dash board B, and move the jig frame (2) vertically and horizontally with respect to the dash board B. According to this,
The pedal bracket C held by the holder (6) on the jig frame (2) has each first mounting hole C1, each bolt insertion hole B,
The clip of the insulator F is positioned with respect to the dash board B so that the hole axis of the second mounting hole C2 and the hole axis of each second mounting hole C2 match each stud bolt B2 of the dash board B, and the clip of the insulator F is held by the holder (9). The stopping point is positioned so as to match the engaging element B3 of the dash board B, and in this state, the engaging means (the clip holding plate of the IO) is advanced to engage the clip G with the engaging element B3.

Next, the movable claw (2) of the correcting means (8) is closed, and the push rod A2 of the brake booster A is gripped with the center determined as described above. According to this, brake booster A
Even if the posture of the brake booster A is tilted due to its own weight, the tilt of the brake booster A is corrected by centering the push rod ^2 on the predetermined axis line, and each stud bolt ^1 is inserted into each bolt insertion hole B1.
The holder (6) is inserted straight along the hole axis, and then the holder (6) is moved forward by the movement of the movable frame a@.

According to this, each stud bolt A1 is inserted into each first mounting hole C1 of the pedal bracket C held by the holder (6), and the pedal bracket C is inserted into the dash board B without interfering with the stud bolt A1. At this time, each stud bolt B2 of the dash board B is inserted into each node 2 mounting hole C2.

Next, the first and second nut runners (161) (162
) while operating the first slide frame a9, and tighten the nuts D onto each stud bolt A, B2,
While operating the third nut runner (16a), move the second slide frame (171 diagonally upwards and open the third mounting hole C4).
Tighten bolt E to the handle mounting stay through °.

After completing the assembly work as described above, each holder (6)
Pedal bracket C and insulator F according to (9)
At the same time, the support arm a9 of the correction means (8) is released.
The jig frame (2) is moved back to the escape position on the lower side, and then the jig frame (2) is moved back and taken out of the vehicle interior.Then, the vehicle body is transported and the jig frame (2) is set in advance. Move to the set jig ■ side, and then repeat the above operation to perform the assembly work continuously.

(Effects of the Invention) As described above, according to the present invention, the pedal bracket is set in advance on the passenger compartment side surface of the dash board, and the stud bolt of the brake booster, which is set in advance on the engine room side surface of the dash board, is inserted into the mounting hole of the bracket. The bracket and the booster can be set accurately so as to be inserted, and the bracket and the booster can be automatically aligned, and the assembling work of the pedal bracket can be automated, which has the effect of improving productivity.

[Brief explanation of the drawing]

FIG. 1 is a side view of one example of the device of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a rear view seen from the left side of FIG. 1, and FIG. 4 is an enlarged rear view of the main parts thereof. 5 and 6 are cross-sectional views taken along lines v-V and ■-■ in FIG. 4, respectively; FIG. 7 is an enlarged side view of the positioning means and correction means; FIG. 8 is a front view thereof;
10 is a plan view of the setting jig, FIG. 11 is a front view thereof, FIG. 12 is a side view thereof, and FIG. The figure is a perspective view of the pedal bracket and the brake booster in a separated state, FIG. 14 is a front view of the pedal bracket, and FIG. 15 is a side view thereof. A...Brake booster A2...Push rod B...Dash board C...Pedal bracket (1)...Robot arm (2)...Jig frame (
5)...Positioning means (6)...Holding means (
D...Tightening means (8)...Correcting means first
Figure 3 Figure 14 Figure 151! I

Claims (1)

[Claims] A combination in which a pedal bracket is set on a surface of a dashboard on the vehicle interior side, and the pedal bracket and a brake booster, which is preset on the surface of the dashboard on the engine room side, are tightened together by sandwiching the dashboard. In the attached device, a robot arm that can be inserted into the vehicle interior,
A jig frame capable of floating movement in the vertical direction and vehicle width direction is supported in a posture facing the dashboard, and the jig frame holds a positioning means for positioning the jig frame with respect to the dashboard and a pedal bracket. A holding means that can move forward and backward in the longitudinal direction of the vehicle, and a tightening means that tightens the pedal bracket and the brake booster together are provided, and the push rod of the brake booster that protrudes into the passenger compartment through the dashboard is held in a centered state. An automobile pedal bracket assembling device characterized in that a correction means for correcting the posture of a brake booster is provided.