JP3209459B2 - Parts mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus for mounting a component at a predetermined position of a member to be mounted in a rough positioning state.

[0002]

2. Description of the Related Art Heretofore, the work of attaching parts to a member to be attached which is only positioned roughly, for example, a vehicle body mounted on a transport hanger of a vehicle assembly line, has been manually performed because automation is difficult. .

[0003]

However, in the conventional work by a worker, for example, when the work of mounting a front sub-frame on the underside of the vehicle body is performed, the workability is poor. The burden was heavy, and it was difficult to perform efficient work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a component mounting apparatus capable of automatically mounting a component at a predetermined position of a mounted member in a rough positioning state. I do.

[0005]

To achieve the above object, the present invention relates to a component mounting apparatus for mounting a component at a predetermined position on a member to be mounted in a rough positioning state. The first orthogonal to each other in the horizontal plane
A floating table that is relatively movable in the axial direction and the second axial direction and is relatively rotatable about the vertical axis, a drive source that drives the floating table up and down, and a drive source that drives the floating table in the first axial direction. A floating support means comprising: at least one pair of first positioning members provided on the floating table, wherein the first positioning member and the member to be mounted come into contact with each other in the process of moving the floating table in the first axial direction. First positioning means for positioning the floating table in the first axial direction and about the vertical axis; at least one pair of second positioning members slidably provided in the floating table in the second axial direction; and a second positioning member. A driving source for driving the second positioning member so as to come into contact with and separate from the second positioning member; By abutment of the urging member, the second to position the floating table to the second axial
Positioning means; at least one pair of fitting members provided on the floating table, and a drive source for driving the fitting member up and down, and the floating table is covered by fitting the fitting member and the reference hole of the attached member. Fixing means for fixing to the mounting member; component supporting member provided on the floating table; and a driving source for driving the component supporting member up and down, and mounting means for mounting the component supported by the component supporting member to the member to be mounted. ; Characterized by having;

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention. FIG. 1 is a front view of a component mounting apparatus, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. 3 is a three-directional arrow of FIG. FIG. 4 is a view of FIG.
5 is a perspective view of the component mounting device.

The component mounting apparatus A of this embodiment is disposed below a moving path of a transport hanger H of an overhead conveyor for suspending and transporting a vehicle body B of an automobile. The nut runner is positioned with respect to the vehicle body B so that the front subframe F temporarily fixed with a plurality of bolts is screwed into the vehicle body B with the remaining bolts.

The transport hanger H includes two right and left arms 1 hanging from a trunnion driven by a chain, and two right and left arms 1 and 1 and two left and right arms 1 and 1, respectively. A pair of beams 2 and 2 to be connected, and support members 3 provided at the front and rear ends of each of the beams 2 and 2 and supporting the vehicle body B are provided.

A vibration preventing means 10 for regulating the vibration of the transport hanger H includes a pair of right and left columns 1 standing on the floor.
1, 11; slide guides 12, 12 provided on the upper portions of the support columns 11, 11; slide rods 13, 13 which are vertically slidably fitted to the slide guides 12, 12; Connected cylinder 14,
14 and a V-shaped hanger positioning member 15, 15 provided at the upper end of the slide rod 13, 13. While the travel of the transport hanger H is stopped, the cylinders 14 and 1
4, the hanger positioning members 15, 15 are extended.
Are fitted to the beams 2 and 2 of the transport hanger H from below, and restrict the deflection of the transport hanger H (see FIG. 1).

On the lower surface of the front part of the vehicle body B supported by the transport hanger H, a front sub-frame F is temporarily fixed in advance by bolts in a preceding step. That is, since a plurality of bolts whose fastening positions are close to each other cannot be simultaneously tightened due to mutual interference of the nut runners, the front subframe F is temporarily fixed by first tightening some of the plurality of bolts in the previous process. In this step, the remaining two bolts b, b are tightened by using a component mounting device A described later to complete the mounting of the front sub-frame F.
The vehicle body B and the front sub-frame F constitute a member to be mounted according to the present invention, and the bolts b and b form parts according to the present invention.

Next, the structure of the component mounting device A will be described.

The component mounting apparatus A is configured to move the floating table 101 in a first axial direction (transport direction of the vehicle body B, ie, the front-rear direction) and a second axial direction (the vehicle body B
Floating support means 100 that slides along a direction perpendicular to the transport direction (i.e., the horizontal direction) and rotatably supports around a vertical axis, and a floating table 1 based on the front sub-frame F.
No. 01 for positioning in the front-rear direction and around the vertical axis
Positioning means 200; second positioning means 300 for positioning floating table 101 in the left-right direction with reference to front subframe F;
And a mounting means 500 provided on the floating table 101 for permanently fixing the front sub-frame F to the vehicle body B with bolts.

The floating support means 100 has a horizontal substrate 103 supported on the upper ends of four pillars 102 standing on the floor. An elevating table 106 is supported on the upper ends of slide rods 105, 105 which are vertically slidably fitted to a pair of slide guides 104, 104 provided on the lower surface of the horizontal substrate 103.
Is driven up and down by a cylinder 107 provided on the lower surface of the horizontal substrate 103.

A rotary table 109 is rotatably supported above the elevating table 106 via a bearing 108 having a vertical axis. A pair of guide rails 110, 110 laid in the front-rear direction (first axial direction) on the upper surface of the turntable 109 have slide guides 111, 1.
The slide table 112 is slidably supported via the reference numeral 11. A cylinder 113 is provided on the upper surface of the rotary table 109 in parallel with the guide rails 110, 110, and an output member 114 is connected to a rear edge of the slide table 112. A connecting member 115 having a through hole extending in the left-right direction is provided on the upper surface of the output member 114.

A pair of guide rails 11 provided on the upper surface of the slide table 112 in the left-right direction (second axial direction)
The floating table 101 is slidably supported by the slide guides 6 and 116 via slide guides 117 and 117. A rod 119 erected between a pair of brackets 118, 118 protruding from the rear edge of the floating table 101 slidably penetrates through holes of the connecting member 115, and a pair of left and right ends of the connecting member 115. Coil springs 120, 1 between the brackets 118, 118
20 is contracted.

Therefore, the floating table 101
Is driven in the front-rear direction together with the slide table 112 by driving the cylinder 113, and the slide table 11 is driven by a pair of coil springs 120, 120.
2 is urged toward the center position in the left-right direction.

At the center of the floating table 101, a cylinder 122 having an output rod 121 having a tapered tip facing downward is supported.
A positioning hole 123 into which the tip of 21 can fit is formed in the center of the slide table 112. By driving the cylinder 122 to fit the output rod 121 into the positioning hole 123, the floating table 101 can be locked at the center position of the slide table 112 when the component mounting device A is not operated.

Next, the structure of the first positioning means 200 provided on the floating table 101 of the floating support means 100 will be described.

The first positioning means 200 is provided on the front edge of the floating table 101 in a pair on the left and right sides.
1, a pair of slide guides 202, 202 fixed to the upper surface of the lower plate 201, guide rods 203, 203 slidably fitted to the slide guides 202, 202, and a guide rod 203. , 203, the first positioning members 205, 205 fixed to the front end of the upper plate 204, and the outer periphery of the slide guides 202, 202 to urge the upper plate 204 upward. Springs 206 and 206 are provided.

Therefore, when the floating table 101 is raised by driving the cylinder 107 to extend, the upper plate 20
4, 204 abut against the lower surface of the front subframe F temporarily fixed to the vehicle body B, and descend while compressing the springs 206. When the rodless cylinder 113 is driven to slide the floating table 101 rearward, the first positioning members 205, 205 abut against the front edge of the front sub-frame F and press rearward.

Next, the structure of the second positioning means 300 provided on the floating table 101 will be described.

The second positioning means 300 includes a guide rail 301 laid in the left-right direction along the front edge of the floating table 101, and a pair of sliders slidably supported on the guide rail 301 via slide guides 302,302. 303, 303, a link 306 pivotally supported at the center via a pin 305 on a bracket 304 provided at the center of the guide rail 301, and a pair of links 307, 30 connecting the link 306 and the sliders 303, 303.
7, a cylinder 309 for connecting a bracket 308 provided on the floating table 101 to one end of the link 306, and a pair of second positioning members 310, 310 erected on the upper surfaces of the sliders 303, 303.

Accordingly, when the cylinder 309 is driven to extend, the sliders 303 move outward through the link 306 and the links 307, 307, and the sliders 303 move.
3,303, a pair of second positioning members 310,3
10 is a concave portion F provided on the front edge of the front sub-frame F.
₁ (See Fig. 3)

Next, the structure of a pair of left and right fixing means 400 provided on the floating table 101 will be described.

The fixing means 400 comprises a pair of substrates 401,
401, slide guides 402, 402 fixed to the upper portions of the substrates 401, 401, and tapered fitting members 403, 403 at the upper end.
Slide rods 404 and 4 that are slidably fitted to 402
04 and the bracket 40 below the substrates 401 and 401.
5 and 405, the slide rod 40
4,404 connected to the cylinders 406.

Therefore, when the slide rods 404, 404 are raised by driving the cylinders 406, 406 to extend,
Fitting members 403, 403 of the tip is fitted into the pair of reference holes B ₁ provided on the vehicle body B, B ₁ (see FIG. 2), to lock the floating table 101 with respect to the vehicle body B.

Next, the structure of a pair of left and right mounting means 500 provided on the floating table 101 will be described.

The mounting means 500 includes a pair of guide rails 501, 501 laid vertically on each of the substrates 401, 401 provided on the floating table 101, and a slider 5 slidably supported by the guide rails 501, 501.
02, 502, cylinders 503, 503 provided at the lower ends of the substrates 401, 401 and connected to the sliders 502, 502, and a pair of nut runners provided at the sliders 502, 502 and having sockets 504, 504 at the upper ends. 505 and 505. Nutrunner 50
5,505 constitutes the component supporting member of the present invention.

After the floating table 101 is locked to the vehicle body B, that is, the front sub-frame F by the fixing means 400, the cylinders 503 and 503 are extended and the nut runners 505 and 505 are raised. bolt b, bolt holes F ₂ of the b front subframe F, F held in the socket 504, 504
₂ (see FIG. 2) and can be screwed into the vehicle body B.

Next, the operation of the embodiment of the present invention having the above configuration will be described.

When the transport hanger H on which the vehicle body B is mounted stops, the hanger positioning members 15, 15 engage with the left and right beams 2, 2 of the transport hanger H by extending the cylinders 14, 14 of the shake preventing means 10. Then, the run-out of the transport hanger H is regulated (see FIG. 4). Subsequently, the front sub-frame F temporarily fixed to the lower surface of the vehicle body B in the preceding process is permanently fixed to the vehicle body B by screwing two more bolts b, b with the component mounting device A. At this time, since the vehicle body B is only roughly positioned with respect to the transport hanger H, the floating table 101 of the floating support means 100 is precisely positioned with respect to the vehicle body B and the front sub-frame F. The work of tightening the two bolts b, b is performed.

That is, first, the cylinder 107 is extended and driven to move the lifting table 10 with respect to the horizontal substrate 103.
6. The rotary table 109, the slide table 112, and the floating table 101 are raised integrally. As a result, the upper plates 204, 204 of the first positioning means 200 provided on the floating table 101 abut against the lower surface of the front subframe F, and the upper plates 204, 204 descend while compressing the springs 206.

Subsequently, the slide table 112 and the floating table 101 are moved backward integrally with the rotary table 109 by driving the cylinder 113 to extend. As a result, floating table 1
The first positioning members 205 of the first positioning means 200 provided on the front sub-frame F abut on the front edge of the front sub-frame F, whereby the floating table 101 is positioned in the front-rear direction with respect to the front sub-frame F (FIG. 4).

At this time, even if the vehicle body B and the front sub-frame F mounted on the transport hanger H are displaced in the rotational direction, the pair of first positioning members 205, 205 receive a reaction force received from the front sub-frame F. , The rotary table 109 rotates around the bearing 108. Thus, the floating table 101 is positioned around the vertical axis with respect to the front sub-frame F.

Subsequently, when the cylinder 309 of the second positioning means 300 is driven to extend, the pair of second positioning members 3 is driven.
10 and 310 are expanded in the lateral direction, to press in contact with the left and right inner edges of the recess F ₁ provided on the front edge of the front sub-frame F (see Fig. 3). As a result, even if the vehicle body B and the front subframe F mounted on the transport hanger H are displaced in the left-right direction, the floating table 101 slides due to the reaction force received by the second positioning members 310, 310 from the front subframe F. The floating table 101 slides in the left-right direction with respect to the table 112, whereby the floating table 101 is positioned in the left-right direction with respect to the front sub-frame F.

When the floating table 101 is positioned with respect to the front sub-frame F in the front-rear direction, the left-right direction, and the vertical axis as described above, the fixing means 4
00, the fitting members 403, 403 are provided in the vehicle body B by a pair of reference holes B ₁ , B
By fitting to _1, the floating table 1
01 is locked to the vehicle body B and the front sub-frame F.

Subsequently, the cylinder 50 of the mounting means 500
3,503 are extended and nut runners 505,505
Is raised, the bolts b, b held in the extendable sockets 504, 504 penetrate the bolt holes F ₂ , F ₂ of the front subframe F and come into contact with the vehicle body B. Thus,
The nut runners 505 and 505 are driven to drive the socket 50.
4, 504, the bolts b, b
And the front sub-frame F is permanently fixed to the vehicle body B.

Although the embodiment of the present invention has been described in detail, the present invention is not limited to the above embodiment, and various design changes can be made.

For example, in the embodiment, the vehicle body B of the automobile and the front subframe F temporarily fixed to the vehicle body B are illustrated as the attached members, and the bolts b are illustrated as the components. The present invention can be applied to attached members and components.

[0041]

As described above, according to the present invention, even if the roughly-positioned mounted member is displaced in the first axial direction, the second axial direction, and around the vertical axis, the first positioning means. The floating table is positioned in the first axis direction and around the vertical axis, the floating table is positioned in the second axis direction by the second positioning means, and the floating table is fixed at a correct position with respect to the member to be mounted by the fixing means. By doing so, the component can be mounted at a predetermined position of the mounted member by the mounting means provided on the floating table. This makes it possible to automatically attach the component to the roughly positioned member to be attached, thereby greatly improving workability.

[Brief description of the drawings]

FIG. 1 is a front view of a component mounting device.

FIG. 2 is an enlarged view of a main part of FIG. 1;

FIG. 3 is a view in the direction of arrows in FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 2;

FIG. 5 is a perspective view of a component mounting device.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 floating support means 101 floating table 107 cylinder (drive source) 113 cylinder (drive source) 200 first positioning means 205 first positioning member 300 second positioning means 309 cylinder (drive source) 310 second positioning member 400 fixing means 403 fit Coupling member 406 Cylinder (drive source) 500 Mounting means 503 Cylinder (drive source) 505 Nut runner (component support member) B Body (attachment member) B ₁ reference hole F Front subframe (attachment member) b Bolt (component)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-115789 (JP, A) JP-A-64-34618 (JP, A) JP-A-60-179376 (JP, A) JP-A-62 143772 (JP, A) JP-A-63-154472 (JP, A) JP-A-2-135127 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B23P 19 / 00-21 / 00 B62D 65/02

Claims (1)

(57) [Claims] 1. A component mounting device for mounting a component (b) at a predetermined position of a member (B, F) in a rough positioning state, wherein the component (b) is mounted on a horizontal plane with respect to the member (B, F). A floating table (101) that is relatively movable in a first axis direction and a second axis direction that are orthogonal to each other and that is relatively rotatable about a vertical axis, and a drive source (107) that drives the floating table (101) up and down. And a driving source (11) for driving the floating table (101) in the first axial direction.
3) floating support means (100) comprising:
At least one pair of first positioning members (205) provided on the floating table (101), and the first positioning member (205) and the attached member (B) in the process of moving the floating table (101) in the first axial direction. , F), a first positioning means (200) for positioning the floating table (101) in the first axial direction and around the vertical axis; and sliding on the floating table (101) in the second axial direction. At least one pair of freely-provided second positioning members (310);
A driving source (309) for driving the positioning member (310) so as to move toward and away from each other; and a second positioning member (31).
0) and a second positioning means (300) for positioning the floating table (101) in the second axial direction by abutting the mounting members (B, F); and at least one pair provided on the floating table (101). Of the fitting member (403) and the reference hole (B ₁ ) of the fitting member (403) and the attached members (B, F). And the floating table (101) is attached to the mounting members (B, F).
A fixing means (400) for fixing to the component; a component support member (505) provided on the floating table (101).
And a drive source (5) for driving the component support member (505) up and down.
03), and mounting means (500) for mounting the component (b) supported by the component support member (505) to the mounted members (B, F).