JPS63263179A - Friction removing device for chassis of vehicle - Google Patents

Abstract

PURPOSE:To remove friction in the chassis of a vehicle by providing pairs of right and left front tire lifting mechanisms and rear tire fitting mechanisms and combining the individual action of these mechanisms to give the same shock to a vehicle as at the time of actual traveling. CONSTITUTION:Tire lifting devices 12l and 12r corresponding to the left front wheel Tfl and right front wheel Tfr of a vehicle V and tire lifting devices 13l and 13r corresponding to the left rear wheel Trl and right rear wheel trr are provided. Also, receiving boards 14l and 14r and a pair of right and left push-back mechanisms 15l, 15r corresponding to the left front wheel Tfl and right front wheel Tfr are provided. And, after lifting up the front and rear supporting boards 21, 22 of the left side lifting mechanism 12l and the placing table 44 of the lifting mechanism 13l simultaneously to the same level, the supporting boards 21, 22 of the right side lifting mechanism 12r and the placing table 44 of the lifting mechanism 13r are equally lifted up. Then, the captioned device is controlled in operation in such a way that the supporting boards 21, 22 and the tire placing table 44 are suddenly lowered in the same order as at the time of lifting up to apply shock to each wheel.

Description

Detailed Description of the Invention A6 Object of the Invention (1) Industrial Application Field The present invention relates to a vehicle suspension friction removal device for removing friction in suspension components of a vehicle after assembly. .

(2) Conventional technology Traditionally, at vehicle manufacturing plants, vehicles assembled on the assembly line are sent as is to the inspection and adjustment line, where various inspection and adjustment tasks such as vehicle height adjustment and headlight optical axis adjustment are performed. There is.

(3) Problems to be solved by the invention However, when a vehicle is assembled on an assembly line, friction remains in the suspension and other suspension parts, which causes an initial change in vehicle height when the vehicle is running. For this reason, if inspections and adjustments are made immediately after vehicle assembly, as is the case in the past, there will be differences in the adjustment values at the adjustment points between after the inspection and adjustment work and after the vehicle has been driven. come.

The present invention has been made in view of the above circumstances, and provides a friction removal device for a vehicle suspension that is capable of applying a shock similar to that during actual driving to a completed vehicle immediately after assembly to remove friction around the suspension. The purpose is to provide.

B0 Structure of the Invention (Means for Solving Problems 11) The device of the present invention has a receiving plate fixedly arranged corresponding to the front tire; A front tire front support plate and a front tire rear support plate are arranged by cutting out a part of the support plate and are arranged to be vertically movable relative to each other so as to be freely raised and lowered. is in the upper position and the front tire front support plate is in a lower position than the receiving plate, and the front tire is pressed so that the front tire moves forward and falls from the front tire rear supporting plate onto the receiving plate. a pair of front tire elevating mechanisms having extrusion arms and disposed corresponding to the left and right front tires, respectively;
A rear tire mounting table that can be moved up and down on which a rear tire can be placed is provided with a stopper that can regulate the forward position of the rear tire, and a pair of rear tire up and down mechanisms are provided corresponding to the left and right rear tires, respectively; and a push-back mechanism for pushing back the front tire in the position from above the receiving plate until it returns to the front tire front support plate and the front tire rear support plate.

(2) Effect According to the above configuration, by combining the individual operations of the pair of left and right front tire lifting mechanisms and the pair of left and right rear tire lifting mechanisms, a shock similar to that during actual driving is applied to the vehicle to improve the suspension. Friction can be removed.

(3) Embodiment Below, an embodiment of the present invention will be explained with reference to the drawings. First, in FIG. 1, there are vehicles V (see FIG. 3) assembled on a plurality of assembly lines Lm in an automobile manufacturing factory. A plurality of, for example, four inspection and adjustment lines Lt are arranged in parallel for inspection and adjustment, and each inspection and adjustment line L
t and the assembly line Lm, friction removing devices 1 are installed corresponding to each inspection and adjustment line Lt in order to remove friction from the suspension parts of the vehicle ■ before inspecting and adjusting the vehicle ■. will be placed.

Each inspection and adjustment line l, t is connected to a steering wheel angle measuring device 2,
A vehicle height adjustment device 3, an alignment inspection device 4, a hendride optical axis inspection device 5, a speedometer inspection device 6, a side slip inspection device 7, and a worker confirmation line 8 are arranged in a straight line. and each worker confirmation line 8
A common shower tester 9 is disposed in the middle.

The steering wheel angle measuring device 2 measures the steering angle limit in the left and right rotation direction of the steering wheel, and determines the center position of the steering wheel relative to the rank and pinion in the steering gear box. The vehicle height adjustment device 3 adjusts the distance between the lower surface of the torsion bar torque tube and the tire contact surface only for the vehicle V having a torsion bar spring type suspension using an adjustment pad provided in the torsion bar torque tube. The alignment inspection bag W14 measures the deviation angle of the toe amount of the front tire with respect to the toe amount of the rear tire, and adjusts the toe amount of the front tire. The headlight optical axis inspection device 5 measures the irradiation direction of the hendride at the front of the vehicle V and adjusts the deviation of the irradiation direction with respect to a reference value. The speedometer inspection device 6 measures the rotational speed of the driving tires and compares the measured value with the indicated value of the speedometer to detect an error in the speedometer. The side slip inspection device 7 measures the amount of sideslip of the steered wheels and confirms the balance of toe-in and camber. The operator confirmation line 8 is a vehicle body transport line where workers perform work confirmation and quality inspection of vehicle body assembly parts. It is a line, and cars that pass are taken out as is, but cars that fail are returned to the re-inspection site. Furthermore, the idling exhaust gas concentration is also inspected on this operator confirmation line 8.

Further, the shower tester 9 tests for rain leaks by showering the vehicle V.

In FIG. 2, the friction removing device l includes a left front tire lifting mechanism 121 corresponding to the left front tire Tfl of the vehicle V, a right front tire lifting mechanism 12r corresponding to the right front tire Tfr, and a left rear tire Trl.
A left rear tire elevating mechanism 131 corresponding to Trr, a right rear tire elevating mechanism 13r corresponding to right rear tire Trr,
Receiver plate 14 compatible with left front tire Tfl! , a receiving plate 14r corresponding to the right front tire Tfr, and a pair of left and right push-back mechanisms 15L and 15r.

This friction removing device 1 is arranged in a transport direction 11 of a vehicle V.
The left front tire lifting mechanism 1271, the left rear tire lifting mechanism 131. Receiver plate 141 and push-back mechanism 1
51 will be described in detail, but the right front tire lifting mechanism 12r, the right rear tire lifting mechanism 13r, and the receiving plate 14r.
The configuration of the push-back mechanism 15r is also basically those 121.
It is the same as ゜1:l, 141, 151.

Referring also to FIG. 3, a bit 17 is provided on the floor surface 16 on which the completed vehicle V runs on the assembly line Lm, and the upper part of this pit 17 is a floor plate flush with the floor surface 16. Covered by 18. Moreover, inside the focus 17 is a support frame 19 that is common to the left and right front tire lifting mechanisms 121.12r.
and a support frame 20 common to the left and right rear tire lifting mechanisms 13C13r are provided, and the floorboard 18 is supported by these support frames 19 and 20.

On the front left side of the floor plate 18 along the conveyance direction 11, there is a rectangular receiving plate 141 that extends long along the conveyance direction 11.
5i1B is cut out and fixedly arranged flush. A left front tire elevating mechanism 12N is disposed at a rearward portion of the receiving plate 14N along the conveyance direction 11, and a push-back mechanism 15J is disposed at a forward side along the conveyance direction 11.

The left front tire elevating mechanism 121 includes a front tire front support plate 21 that supports the left front tire Tfl on the front side of a vertical line C passing through the center of the axle of the left front tire TfJ, and a front tire front support plate 21 that supports the left front tire Tfl on the rear side of the vertical line C. It includes a front tire rear support plate 22 that supports the left front tire TfJ, and a pair of push-out arms 23, 23 for pressing the left front tire Tfl toward the front along the conveyance direction 11.

The front tire front support plate 21 and the front tire rear support plate 22 are arranged by cutting out a part of the receiving plate 141 so as to be able to move up and down, and both support plates 21 and 22 cooperate to support the left front tire Tfr. It has sloped portions with the sides that are closer to each other facing downward. Moreover, both support plates 21.2
Guide plates 24, 24; 25, 25 are erected on both sides of the left front tire Tfl, respectively, to guide both sides of the left front tire Tfl. In addition, a pair of guide plates 2, which are connected to the guide plates 25 and 25 on the rear side along the conveyance direction 11, and whose spacing becomes narrower toward the front along the conveyance direction 11.
6.26 is erected on the receiving plate 14e.

An elevating platform 27 is disposed below the front tire front support plate 21 and the front tire rear support plate 22 so as to be movable up and down. A piston rod 28a of a first cylinder 28 having an axis extending vertically is connected to the lifting table 27, and the lower part of the first cylinder 28 is connected to a Talebis pin 29.
is supported by the support frame 19.

Referring also to FIG. 4, a front tire rear support plate 22 is fixed to the upper end of the lifting platform 27.

Slide rails 30, 30 extending vertically are fixedly installed on both sides of this lifting platform 27, and these slide rails 30, 30 can be slid up and down by a plurality of rail grips 31 provided on the support frame 19. It will be supported. As a result, the front tire rear support plate 22 moves up and down between the position where it is flush with the receiving plate 141 and the position where it projects upwardly relative to the receiving plate 141, in response to the raising and lowering operation of the first cylinder 28. .

A slider 32 extending vertically is fixed to the front part of the lifting platform 27 along the conveyance direction 11, and the lifting slider 33, which has the front tire front support plate 21 fixed to the upper end, is fitted with the slide rail 32. A pair of upper and lower rail grips 34
is provided. Moreover, a second cylinder 36 whose lower end is supported by the elevator table 27 by a Talebis pin 35 and extends vertically.
The piston rod 36a of the front tire front support plate 2
1. As a result, the front tire front support plate 21 moves vertically relative to the lifting platform 27, that is, the front tire rear support plate 22, in response to the expansion and contraction of the second cylinder 36.

At the rear part of the lifting platform 27 along the conveyance direction 11, there is a conveyor direction 1.
A horizontal rotation shaft 37 perpendicular to 1 is rotatably supported. This rotation shaft 37 has a pair of push-out arms 23.23.
The proximal end of is fixed. On the other hand, the front tire rear support plate 22 and the receiving plate 141 are provided with a pair of ejecting arms 23 and 23 extending in parallel along the conveying direction 11 in order to enable rotation of both push-out arms 23 and 23 in accordance with the rotation of the rotation shaft 37. Guide slit 38
38, and a roller 39 having an axis parallel to the rotating shaft 37 is pivotally supported between the tips of the push-out arm 23.23 which projects upward from both guide slides 38.38. Moreover, a recess 40 for accommodating the roller 39 is provided at the rear part of the receiving plate 14j2 along the transport direction 11, and the roller 39 moves forward along the transport direction 11 from its original position stored in the recess 40. Left front tire Tf
It is possible to press J from the back to the front.

The lower end of a third cylinder 41 extending vertically is supported on the lifting platform 27 via a Talebis pin 42, and the other end of a link 43 whose one end is connected to the piston rod 41a of the third cylinder 41 is a rotation shaft. It is fixed to 37. As a result, the rotation shaft 37, that is, both extrusion arms 23, 23, is rotationally driven in accordance with the expansion and contraction operation of the third cylinder 41, and the roller 39 is driven back and forth along the conveyance direction 11 accordingly.

The left rear tire lifting mechanism 131 includes a rectangular box-shaped rear tire mounting table 44 that can be lifted and lowered by placing the left rear tire Trl thereon.
A stopper 45 is provided on the rear tire mounting base 44 to restrict the forward position of the left rear tire Trl.

On the rear left side of the floor plate 18 along the conveyance direction 11, there is a rear tire mounting table 44 extending along the conveyance direction 11.
A part of 8 is cut out so that it can be moved up and down. The upper ends of vertically extending vertically extending sliders 47.47 are connected to brackets 46.46 provided on the lower surface of both ends of the rear tire mounting base 44 along the conveyance direction 11. Each of the rail gripping parts 48 is fitted into slide rails 49, 49 which extend vertically and are fixed to the support frame 20. Moreover, the support frame 20
, the lower ends of fourth cylinders 50° 50 extending vertically are supported via clevis pins 51, and the piston rods 50a of these fourth cylinders 50°
are connected to the elevating sliders 47 and 47, respectively. As a result, 1. The rear tire mounting table 44 moves up and down in response to the expansion and contraction of the fourth cylinder 50.50.

At the front part of the rear tire mounting table 44 along the conveyance direction 11,
A long hole 52 that extends long in a direction perpendicular to the transport direction 11 is bored. The pawl 45 is formed into a rectangular block shape corresponding to the long hole 52, and has two positions: one where it can protrude upward from the long hole 52 and come into contact with the left rear tire Trl, and the other where it is accommodated in the rear tire mounting base 44. It is arranged so that it can be raised and lowered between.

A fifth cylinder 53 is fixed and arranged in the rear tire mounting base 44 in correspondence with the stopper 45, and a piston rod 53a in the fifth cylinder 53 that extends vertically
The stopper 45 is provided at the tip.

Further, guide bars 54 and 54 extending in parallel along the conveyance direction 11 are fixed to both left and right ends of the upper surface of the rear tire mounting table 44 to guide the movement of the left front tire Tfl and the left rear tire Tr1 in the conveyance direction 11. be done.

Referring also to FIG. 5, the push-back mechanism 151 includes a rotating shaft 55 that has a horizontal axis perpendicular to the conveying direction 11 and is rotatably supported by the support frame 19, and a rotating shaft 55 that rotates the base end. A pair of left and right push-back arms 56.56 are fixed to the moving shaft 55 and extend upward.
, a roller 57 that is supported between the tips of both push-back arms 56 and 56 with an axis parallel to the rotation shaft 55;
5, a sixth cylinder 60 whose lower end is supported by the support frame 19 via a clevis pin 59 and which extends vertically; Piston rondro 0 of cylinder 60
a, and a substantially V-shaped link 61 that connects the rotating shaft 55 and the connecting shaft 58. Moreover, the sixth cylinder 60
is common to the left and right push-back mechanisms 151.15r.

The temporary receiver 141 is provided with a pair of guide slits 62.62 extending in parallel along the conveyance direction 11 to guide the rotational movement of the push-back arm 56.56. A roller 57 is pivotally supported between the tips of both push-back arms 56, 56 that protrude upward. Moreover, a roller 5 is provided at the front part of the receiving plate I4E along the conveying direction 11.
The push-back arms 56 and 56 move the left front tire Tfl on the receiving plate 141 to the front part of the front tire by the roller 57. It is rotatable between a position where it is pushed back onto the support plate 21 and the front tire rear support plate 22.

On the receiving plate 141, sensors 64, 6 are installed on the sides of the left front tire lifting mechanism 12m' and the left rear tire lifting mechanism 131, in order to detect that the vehicle (2) is in a predetermined position.
5 are fixedly arranged.

Next, to explain the operation of this embodiment, the vehicle v assembled on the assembly line Lm has a friction removing device W:
, l, and as shown in FIG. 3, the front tire TfI! , Tfr is left, right front tire lifting mechanism 1
When the sensors 64 and 65 detect that the rear tires Tri and Trr are located on the left and right rear tire elevating mechanisms 13L and 13r, the conveyance of the vehicle V is stopped.

In this state, the front tire front support plate 21 and the front tire rear support plate 22 in the left front tire lifting mechanism 121 are in a position to support the left front tire Tfff at the same level as the receiving slope 14p, The push-out arm 23.23 pushes the roller 39 into the recess 40.
It is located in a position where it is accommodated.

Further, the rear tire mounting base 44 of the left rear tire lifting mechanism 1311 is at the same level as the floor plate 18. Further, the roller 57 of the push-back mechanism 15N is housed in the recess 63.

The operation of the friction removing device 1 starts by raising the stopper 45 to remove the rear tire Tr1. The process starts by bringing the TRR into a state where its forward movement can be regulated. At this time, the rear tire mounting table 44 of the rear tire lifting mechanism 13I1.13r
Also, the front tire lifting mechanism 121.12
The front tire front support plate 21 and the front tire rear support plate 22 of r are raised while maintaining the same level.

As a result, the vehicle V is raised to a position above the floor plate 18.

Next, the second cylinder 36 suddenly contracts and moves the front tire front support plate 21 to the receiving plate 1 as shown in FIG.
4m! , 14r, and by extending the third cylinder 41, the push-out arm 23.23 is rotated forward, and the roller 39 presses the front tires Tfl and Tfr forward. do.

As a result, the front tire Tfj! , Tfr moves forward and receives the front tire from above the rear support plate 22 temporarily 14j!
, falls onto 14r. As a result, the front tire Tf
1 and Tfr are subjected to an impact from diagonally below.

On the other hand, while the rear tires Tri and Trr are moving forward on the rear tire mounting base 44 in response to the forward movement of the front tires TfCTfr, the fourth cylinder 50. Let it drop rapidly to the level of I8. As a result, an impact is applied to the rear tire TrCTrr from diagonally below.

Even after the rear tire mounting base 44 has descended to the same level as the floor plate 18, the vehicle V continues to move forward by inertia, and the rear tire Tr
ll and Trr collide with the stopper 45 and stop. As a result, the same impact is applied to the vehicle (2) as when the vehicle (2) brakes while driving at a low speed.

On the other hand, when the rear tire mounting base 44 is lowered, the front tire front support plate 21 rises to the same level as the support plate 14J, the front tire rear support plate 22 descends to the same level as the support plate 141, and the roller 39 moves to the recess 40. Return to the original position stored in.

1 for applying a shock to the vehicle V through the above series of operations.
The cycle ends, but at this point the vehicle V has rear tires Trj! , Trr are advanced to a position where they abut against the stopper 45. Therefore, the push-back mechanism 154! ,
15r returns the vehicle ■ to its original position.

That is, as shown in FIG. 7, by extending the sixth cylinder 60, both push-back mechanisms 15C15r
The rollers 57 are moved in a direction opposite to the conveyance direction 11.

This causes the roller 57 to move to the front tire Tfj! , Tf
r is pressed, and the vehicle V moves the front tires Tfl and Tfr.
Return to the original position (the position shown in FIG. 3) where it was placed on the front tire front support plate 21 and the front tire rear support temporary 22. Then, by returning the roller 57 to its original position, that is, to the position where it is accommodated in the recess 63, the push-back cycle of the vehicle (2) is completed.

In this way, by repeating the above-described impact application cycle and push-back cycle, the same impact as during actual driving is applied to the vehicle V, and the friction of the suspension and other suspension parts of the vehicle V is removed. . After the cycle is repeated a predetermined number of times, the stopper 45 is lowered to a position where it is housed in the rear tire mounting base 44, and the vehicle V
is carried out toward the inspection and adjustment line Lt.

At the inspection and adjustment line Lt, the suspension parts of the vehicle ■ are subjected to a shock similar to that during actual driving, and as the friksilin of those parts is removed, the vehicle height and irradiation optical axis are adjusted. You only need to do it once.

By the way, in the flixiran removal device 1, it is also possible to apply a shock by an operation different from that described above, and the operation will be explained next using two examples.

In this example, first, after raising the 7th pawl 45 from the state shown in FIG. and the rear tire mounting base 44 are simultaneously raised to the same level. Next is the right front tire lift ff? 12r and the rear tire mounting base 44 of the right rear tire lifting mechanism 13r are simultaneously raised to the same level. Thereafter, both support plates 21, 22 of the left front tire lifting mechanism 1211 and the rear tire mounting base 44 of the left rear tire lifting mechanism 131 are suddenly lowered.

Thereby, both support plates 21, 22 of the right front tire lifting mechanism 12r and the rear tire mounting base 44 of the right rear tire lifting mechanism 13r, which can apply an impact to the left front tire Tf6 and the left rear tire Tlr, are simultaneously suddenly lowered. Therefore, the right front tire Tf
r and the right rear tire Trr.

By repeating the above operation, each tire TfIt, T
f r,Trj! , Trr, and then the stopper 45 can be lowered to transport the vehicle.

In still another example of operation, the stopper 45 is moved from the state shown in FIG.
After raising both front tire lifting mechanisms 12L
After raising both support plates 21 and 22 of 12r at the same time,
Both rear tire elevators +! 131° 13r The rear tire mounting bases 44 of 131° 13r are raised at the same time. Next, both the support plates 21 and 22 of both front tire lifting mechanisms 121° 12r are suddenly lowered.
r can give an impact, and both rear tire lifting mechanisms 134! , 13r, by rapidly lowering the rear tire mounting base 44 of both rear tires '["rJ, 'l'r
It is possible to give a shock to r.

By repeating this operation, each tire Tf1°Tfr
, Trr, and Trr, the stopper 4
By lowering the vehicle (5), the vehicle (2) can be taken out.

It is also possible to remove friction by mutually combining each of the above operation examples.

C2 Effects of the Invention As described above, the device of the present invention has a receiving plate that is fixedly arranged corresponding to the front tire; A front tire front support plate and a front tire rear support plate are arranged by cutting out a portion of the front tire and are arranged so as to be vertically movable so as to be freely raised and lowered, and the front tire rear support plate is positioned above the receiving plate. and a push-out arm for pressing the front tire in order to move the front tire forward and fall from the front tire rear support plate onto the receiving plate while the front tire front support plate is in a lower position than the temporary position. , a pair of front tire elevating mechanisms disposed corresponding to the left and right front tires, respectively; a rear tire mounting table that can be lifted and lowered with the rear tires placed thereon, and a stopper that can regulate the forward position of the rear tires; A pair of rear tire lifting and lowering mechanisms are provided corresponding to the left and right rear tires; for pushing the front tire in the forward position back from the receiving plate until it returns to the front support plate for the front tire and the rear support plate for the front tire. The system is equipped with a push-back mechanism and; by means of staggered lifting and lowering of each tire lifting mechanism, operation of the push-out arm, etc., a shock similar to that during actual driving is applied to each tire.
It is possible to eliminate friction in suspension parts.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a simplified plan view showing the arrangement of a vehicle assembly line and inspection and adjustment lines, FIG. 2 is a plan view of a friction removing device, and FIG. is a sectional view taken along line mm in Figure 2, Figure 4 is a sectional view taken along line TV-IV in Figure 3, Figure 5 is a sectional view taken along line V-V in Figure 3, and Figure 6 is a sectional view taken along line V-V in Figure 3. FIG. 7 is a longitudinal sectional view of the main part showing the operating state of the push-back mechanism. 1...Friction removal device, 12n, 12r...
Front tire lifting mechanism, 131.13r... Rear tire lifting mechanism, 141, 14r... Reception plate, 1! M!
, 15r... Push-back mechanism, 21... Front tire front support plate, 22... Front tire rear support plate, 2
3... Push-out arm, 44... Rear tire mounting stand,
45... Stopper, C-... Vertical line, Tf l, Tf r, Trl,
Trr...tire

Claims (1)

[Claims] A support plate is fixedly arranged to correspond to the front tire; a part of the support plate is cut out and arranged to support the front tire on the front and rear sides of the vertical line passing through the center of the axle, and it is also movable vertically. A front tire front support plate and a front tire rear support plate are arranged such that they can be raised and lowered, and the front tire rear support plate is positioned above the support plate, and the front tire front support plate is positioned below the support plate. It has an extrusion arm for pressing the front tire in order to move the front tire forward and fall from the front tire rear support plate onto the receiving plate in the state of A pair of front tire elevating and lowering mechanisms; a rear tire mounting table that can be lifted and lowered with a rear tire placed thereon is provided with a stopper that can regulate the forward position of the rear tire, and the stopper is arranged corresponding to the left and right rear tires, respectively. A pair of rear tire elevating mechanisms; and a push-back mechanism for pushing the front tire in the forward position from above the receiving plate until it returns to the front tire front support plate and the front tire rear support plate. Friction removal device for vehicle suspension.