CN202351058U - Self-centering fast clamp - Google Patents

Abstract

The utility model relates to a self-centering fast clamp for a sensor of a four-wheel locator of an automobile. The self-centering fast clamp is characterized in that three support wheels are arranged in one plane; the center of a shaft fixing seat is perpendicular to the plane; a vertical rod vertically and equally divides a U-shaped rack, and is equidistant from the U-shaped arms at the both ends of the U-shaped rack; the vertical rod and a cross rod are inserted into fixing holes of a clamp fixing seat respectively, wherein the cross rod traverses the clamp fixing seat; the shaft fixing seat is fixed on the clamp fixing seat through an inner hexagonal cylinder head screw; a U-shaped rack fixing seat is sheathed in the vertical rod; the U-shaped rack is fixed on a U-shaped rod fixing seat by a cross recessed pan head screw penetrating a nylon post; and the three support wheels are penetrated on the vertical rod and the cross rod respectively. The clamp disclosed by the utility model eliminates influence of deformation caused by external factors by adopting a hanging way, thereby avoiding damage to rims; in addition, the clamp, after being mounted, is ensured to be overlapped with the central lines of the rims, therefore, rim compensation is not needed when the fast clamp is applied to four-wheel location.

Description

The self-centering quick-speed jigs

Technical field

The utility model relates to a kind of Motor Maintenance, automobile maintenance industry are used to clamp the four-wheel position finder sensor when vehicle being done the four-wheel location instrument, self-centering quick-speed jigs that particularly a kind of four-wheel position finder uses of being used for.

Background technology

At present, the supporting anchor clamps of four-wheel position finder adopt the anchor clamps of 4 clamping modes mostly, use 3 clamping devices on a small quantity.4 clamping devices are through the knob rotating threaded shaft; Two lever arms inwardly shrank or outwards open along guide pillar about the leading screw both sides were respectively right-hand thread and the drive of left-hand thread screw thread, and center section is fixed with an axle sleeve can wherein be used for fixing sensor with the axle insertion of sensor.On two lever arms two claws are arranged respectively up and down, rotary knob adjustment claw spacing and size rim are suitable, and the outer rim or the inner edge while rotary knob that claw are inserted into wheel rim inwardly shrink claw, and anchor clamps tightly are fixed on the wheel rim.The problem that this kind anchor clamps exist is: there is distortion in anchor clamps itself when locking fixture, and different its deflections of the dynamics of locking are different, influence measuring accuracy; Can confirm a plane at 3, and 4 anchor clamps can not guarantee its four claws in one plane, thereby influence measuring accuracy; Be not easy to confirm central point,, thereby its central point can not be overlapped, influence measuring accuracy with the central point of wheel rim because leading screw exists gap value can not guarantee two lever arms mobile phase distance together simultaneously.Because claw directly contacts with wheel rim, when locking fixture, damage wheel rim easily; Owing to there is above deviation, when doing the four-wheel location, must do the wheel rim compensation, influence work efficiency.Also there is following defective in 3 clamping devices: complex structure, and volume is big, inconvenient operation; Adopt the claw mode to damage wheel rim easily; Cost an arm and a leg.

Summary of the invention

The purpose of the utility model is in order to solve the problem that existing anchor clamps exist, directly not contact the infringement of avoiding wheel rim with wheel rim and provide a kind of, adopting the mode that mounts both not have the factor of external force to make it produce the self-centering quick-speed jigs of deformation.

For solving the problem that prior art exists, the technical scheme that the utility model adopts is that the self-centering quick-speed jigs comprises: montant ,U type frame ,Spacing ring ,Clamps seat, cross bar ,The axle holder ,Lock-screw ,Locking spanner, U type frame holder, hand button, support wheel, elastic cylindrical pin, circlip for shaft, nylon column, level meter.Three support wheels are in a plane, and the central vertical of axle holder is in this plane, and the distance that montant is vertically divided the U type arm at U type frame and two ends equally equates.Montant and cross bar are inserted into respectively in the fixed orifice of clamps seat, and wherein cross bar crosses the clamps seat, and the axle holder is fixed on the clamps seat with hexagon socket cap head screw; U type frame holder is inserted in the montant, and U type frame is worn nylon column with Cross Recess Head Screw and is fixed on the U type bar holder; Three support wheels are through respectively on montant and the cross bar, load onto circlip for shaft in the end of montant and cross bar; Level meter is fixed on hand button top.

The beneficial effect of the utility model is: these anchor clamps adopt the mode that mounts to eliminate external force factor and produce the influence of being out of shape, and avoid damaging wheel rim; Adopt self-centering principle simultaneously, guarantee the central lines of anchor clamps installation back and wheel rim, can do the wheel rim compensation when doing the four-wheel location, improved service efficiency, guaranteed the four-wheel locating accuracy.

Description of drawings

Fig. 1 is the side view of the utility model;

Fig. 2 is the front elevation of the utility model;

Fig. 3 is that anchor clamps are suspended to the synoptic diagram on the tire.

Shown in the figure: montant 1,U type frame 2,Spacing ring 3,Clamps seat 4, cross bar 5,The axle holder 6,Lock-screw 7,Locking spanner 8, U type frame holder 9, hand button 10, support wheel 11, cross pan head screw 12, cross pan head screw 13, hexagon socket cap head screw 14, elastic cylindrical pin 15, circlip for shaft 16, nylon column 17, level meter 18.

Below in conjunction with embodiment and accompanying drawing the utility model is further specified.

Embodiment

The self-centering quick-speed jigs; Form by cross bar 5, montant 1, clamps seat 4, axle holder 6, U type frame 2 and three support wheels 11 etc.; Wherein three support wheels in a plane and the central vertical that requires axle holder 6 in this plane, the distance that montant is vertically divided U type frame equally and made two U types hang arms equates.

Montant 1 and cross bar 5 are inserted into respectively in the fixed orifice of clamps seat 4, and wherein cross bar 5 crosses the clamps seat, and assurance cross bar 5 left and right sides exposed portions serve equal in length are fixed with screw then.Three M8 of axle holder 6 usefulness * 20 hexagon socket cap head screws are fixed on the clamps seat 4; U type frame holder 9 is inserted in the montant 1; U type frame 2 usefulness M4 * 25 cross pan head screws are worn Ф 4 * 12 nylon columns 17 be fixed on the U type bar holder 9, guarantee that U type frame 2 and montant 1 are vertical and in the center.Three support wheels 11 that will assemble are then loaded onto circlip for shaft 16 in the end of montant 1 and cross bar 5 and are prevented the support wheel slippage respectively through on montant 1 and the cross bar 5.And then load onto level meter 18, lock-screw 7, locking spanner 8, hand button 10 respectively.

The principle of these anchor clamps: the suitable and circle of doughnut, the perpendicular bisector of any string on the circle must be through the center of circle.Show like Fig. 3; When anchor clamps were suspended on the tire, two contact points of hanging arm and tire of U type bar 2 were equivalent to A, B 2 points among Fig. 3, and line segment C, D are equivalent to the montant 1 of anchor clamps; Vertically divide U type frame 2 and equal equally owing to require montant 1 during the anchor clamps assembling to two distances of hanging arm; Line segment C, D perpendicular bisector section A, B, line segment C, D must pass through center of circle O so, promptly are equivalent to the center of anchor clamps montant through tire.Require three support wheels 11 to be affixed on the side or wheel rim of tire during sectional fixture, the height of three support wheels, size are consistent, and the contact point of three support wheels and tire is confirmed a plane, and this plane is the side plane of tire.The axle center of the axle holder 6 on the anchor clamps had both met the requirement of four-wheel position finder perpendicular to the side plane of tire and on the center line of tire.

Claims (2)

1. a self-centering quick-speed jigs comprises: montant ,U type frame ,Spacing ring ,Clamps seat, cross bar ,The axle holder ,Lock-screw ,Locking spanner, U type frame holder, hand button, support wheel, elastic cylindrical pin, circlip for shaft, nylon column, level meter; It is characterized in that: three support wheels (11) are in a plane; The central vertical of axle holder (6) is in this plane, and the distance that montant (1) is vertically divided the U type arm at U type frame (2) and two ends equally equates.

2. a kind of self-centering quick-speed jigs according to claim 1; It is characterized in that: montant (1) and cross bar (5) are inserted into respectively in the fixed orifice of clamps seat (4); Wherein cross bar (5) crosses the clamps seat, and axle holder (6) is fixed on the clamps seat (4) with hexagon socket cap head screw; U type frame holder (9) is inserted in the montant (1), and U type frame (2) is worn nylon column (17) with Cross Recess Head Screw and is fixed on the U type bar holder (9); Three support wheels (11) are through respectively on montant (1) and the cross bar (5), load onto circlip for shaft (16) in the end of montant and cross bar; Level meter (18) is fixed on hand button (10) top.

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